Safety Check Apparatus for Challenge Course
20210016116 ยท 2021-01-21
Inventors
- James Allen Liggett (Allegan, MI, US)
- Sean Raymond HORIHAN (Allegan, MI, US)
- Caitlin Marie MCMAHAN (Allegan, MI, US)
Cpc classification
A62B35/0062
HUMAN NECESSITIES
A62B35/0087
HUMAN NECESSITIES
A62B35/0075
HUMAN NECESSITIES
E01B25/22
FIXED CONSTRUCTIONS
A63B71/0054
HUMAN NECESSITIES
International classification
Abstract
A safety check apparatus and method for testing a lanyard system prior to entering a challenge course. The apparatus comprises a track arranged at an entrance of the challenge course. The track includes a first position and a second position above a supporting surface. A moveable member is supported by and displaceable relative to the track. The track is connected to a course track that traverses the challenge course such that the moveable member is displaceable therebetween. A lanyard is attached to the moveable member and extends a length from the moveable member. A user harness is coupled to the lanyard. When at least a portion of a user's weight is supported by the harness, the connection point between the harness and the lanyard is positioned higher above the supporting surface at the second position of the track than at the first position of the track.
Claims
1. A safety check apparatus for testing a lanyard system prior to entering a challenge course, comprising: a track arranged at an entrance of the challenge course above a supporting surface, the track having a first position and a second position, the first position being a first vertical distance above the supporting surface, the second position being a second vertical distance above the supporting surface; a moveable member supported by and displaceable relative to the track; a lanyard attached to the moveable member and extending a length from the moveable member; a harness having a connection point for coupling to a connection point of the lanyard; wherein the track is connected to a course track that traverses the challenge course such that the moveable member is displaceable therebetween; the first vertical distance of the first position of the track above the supporting surface is longer than the length of the lanyard; the second vertical distance of the second position of the track above the supporting surface is longer than the length of the lanyard; the first vertical distance of the first position of the track above the supporting surface is shorter than the second vertical distance of the second position of the track above the supporting surface; whereby when at least a portion of a user's weight is supported by the harness, the connection point of the harness is positioned higher above the supporting surface at the second position of the track than at the first position of the track.
2. The safety check apparatus of claim 1, wherein the second vertical distance of the second position of the track is configured to load at least a majority of the user's weight onto the harness when the user is supported by the harness at the second position of the track.
3. The safety check apparatus of claim 2, wherein the second vertical distance of the second position of the track is configured to load at least 75% of the user's weight onto the harness when the user is supported by the harness at the second position of the track.
4. The safety check apparatus of claim 3, wherein the second vertical distance of the second position of the track is configured to load at least 95% of the user's weight onto the harness when the user is supported by the harness at the second position of the track.
4. The safety check apparatus of claim 4, wherein the second vertical distance of the second position of the track is configured to load all the user's weight onto the harness when the user is supported by the harness at the second vertical position of the track.
6. The safety check apparatus of any of the preceding claims, wherein the difference between the first vertical distance of the first position of the track and the second vertical distance of the second position of the track corresponds to the height that a user falls when the user steps or falls off an element of the challenge course before being caught by the lanyard, which is coupled to the harness and secured with respect to the course track traversing the challenge course via the moveable member.
7. The safety check apparatus of any of the preceding claims, wherein the first vertical distance of the first position of the track above the supporting surface is the same as the height between an element of the challenge course and a course track traversing said element.
8. The safety check apparatus of any of the preceding claims, wherein the first vertical distance of the first position of the track above the supporting surface is selected to make it easier for a user to reach the lanyard and move the moveable member connected to the lanyard along the track, at least compared to the second vertical distance of the second position of the track.
9. The safety check apparatus of any of the preceding claims, wherein the second vertical distance of the second position of the track above the supporting surface is selected to make it easier for a user to move from sitting in the harness to standing on the supporting surface, at least compared to the first vertical distance of the first position of the track.
10. The safety check apparatus of any of the preceding claims, wherein the lanyard comprises a plurality of connection points, and the connection point of the harness is coupled to the first adjacent connection point of the lanyard which is below the connection point of the harness when a user wearing the harness is standing under the second position of the track and the length of the lanyard is pulled downward from the moveable member in the track above.
11. The safety check apparatus of any of claim 1-10, wherein: the supporting surface comprises a platform arranged underneath the track, the platform is displaceable between a first height and a second height, the first height of the platform being vertically higher than the second height of the platform: the first position of the track is located above the platform when the platform is at the first height: and the second position of the track is located above the platform when the platform is at the second height.
12. The safety check apparatus of claim 11, wherein the platform is actuated between the first height and the second height by a hydraulic or traction lift.
13. The safety check apparatus of claim 11 or 12, wherein the second vertical distance, which extends between the track and the platform when the platform is positioned at the second height, is configured to prevent a user's feet from contacting the platform when the platform is lowered to the second height.
14. The safety check apparatus of any of claims 1-10, wherein: the track comprises a moveable portion that is displaceable between a first height and a second height, the second height of the moveable portion being vertically higher than the first height of the moveable portion; the moveable portion of the track provides the first position of the track when the moveable portion is at the first height; and the moveable portion of the track provides the second position of the track when the moveable portion is at the second height.
15. The safety check apparatus of claim 14, wherein the moveable portion of the track transitions into the course track that traverses the challenge course when the moveable portion of the track is positioned at the first height.
16. The safety check apparatus of claim 14 or 15, wherein the moveable portion of the track is actuated between the first height and the second height by a hydraulic or traction lift.
17. The safety check apparatus of any of claims 14-16, wherein the second vertical distance, which extends between the supporting surface and the moveable portion of the track when the moveable portion of the track is positioned at the second height, is configured to prevent a user's feet from contacting the supporting surface when the moveable portion of the track is raised to the second height.
18. The safety check apparatus of any of claims 1-10, wherein: the supporting surface comprises an elevated platform underneath the track; the track comprises a rail portion arranged above the supporting surface horizontally adjacent to the elevated platform; the moveable member comprises one or more wheels configured to roll along the rail portion of the track; the first position of the track is located above the elevated platform; and the second position of the track is located in the rail portion of the track.
19. The safety check apparatus of claim 18, wherein the second vertical distance, which extends between the supporting surface and the rail portion of the track, is configured to prevent a user's feet from contacting the supporting surface when a user rolls along the rail portion of the track.
20. The safety check apparatus of any of claims 1-10, wherein: the supporting surface comprises a vertical dip; the second position of the track is located above the vertical dip of the supporting surface; and the first position of the track is located above the supporting surface horizontally adjacent to the vertical dip.
21. The safety check apparatus of any of claims 1-10, wherein: the track is inclined between the first position of the track and the second position of the track; and the track is vertically higher at the second position than at the first position.
22. The safety check apparatus of any of the proceeding claims, wherein: the track is connected to the course track traversing the challenge course at a course track ingress point; the track has a test exit gate that is interchangeable between an open and closed position; the test exit gate is arranged between the course track ingress point and the second position of the track; and the test exit gate is configured to prevent a user from proceeding forward from the second position of the track to the course track until the user has completed testing.
23. The safety check apparatus of any of the proceeding claims, wherein: the track is connected to the course track traversing the challenge course at a course track ingress point; the track has a test entry gate that is interchangeable between an open and closed position; the second position of the track is arranged between the course track ingress point and the test entry gate; and the test entry gate is configured to prevent a user from proceeding forward to the second position of the track until a previous user has completed testing.
24. The safety check apparatus of claim 22 or 23, further comprising an indicator configured to visually indicate when the test exit gate and/or the test entry gate is/are open and/or closed.
25. The safety check apparatus of any of claims 22-24, wherein a logic controller controls operation of the test exit gate, the test entry gate, and/or the indicator based on input received from one or more sensors or from course personnel.
26. The safety check apparatus of any of claims 1-10, wherein: the track comprises a moveable track section and a moveable track section sensor; the moveable track section provides the second position of the track; the moveable track section is vertically displaceable; the moveable track section is upwardly biased by a biasing force provided by a tensioner; the moveable track section is downwardly displaceable when a load, provided by a user sitting down in the harness or leaning into the harness, is applied which overcomes the biasing force of the tensioner; and the moveable track section sensor is configured to detect displacement of the moveable track section; and an indicator is configured to visually indicate when the moveable track section sensor detects that the moveable track section has been displaced.
27. The safety check apparatus of claim 26, wherein: at least one hand element extends downward from the moveable track section; each hand element is configured to be engaged by a user's hand; at least one hand element sensor is configured to detect when a user has engaged with the at least one hand element; and the indicator is configured to visually indicate when the at least hand element sensor detects that the at least one hand element has been engaged by a user.
28. The safety check apparatus of claim 26 or 27, wherein the track has a test entry gate configured to prevent a user from proceeding to the moveable track section until a previous user has completed testing.
29. The safety check apparatus of any of claims 26-28, wherein the track has a test exit gate configured to prevent a user from proceeding from the moveable track section to the course track until the user has completed testing.
30. The safety check apparatus of any of claims 26-29, further comprising a logic controller which processes signals received from the moveable track section sensor and/or the at least one hand element sensor, and controls operation of the indicator, the test entry gate, and/or the test exit gate based on said signals.
31. The safety check apparatus of any of claims 26-30, wherein the track is inclined between the first position of the track and the second position of the track, and the track is vertically higher at the second position than at the first position.
32. The safety check apparatus of any of the preceding claims, wherein the track comprises: a track access point for mounting or dismounting the moveable member with respect to the track; a course track ingress point for the moveable member to enter the course track from the safety check apparatus; and a course track egress point for the moveable member to enter the safety check apparatus from the course track; wherein the second position of the track is arranged along the track between the track access point and the course track ingress point.
33. The safety check apparatus of claim 32, wherein the track further comprises a bypass track section extending between the course track ingress point and the course track egress point.
34. The safety check apparatus of claim 33, wherein the bypass track section has a one-way gate configured to allow a user to move forward from the course track ingress point toward the course track egress point, but not from the course track egress point back toward the course track ingress point.
35. The safety check apparatus of any of claims 32-34, wherein the track has a one-way gate configured to allow a user to move from the course track egress point toward the course track access point, but not from the course track access point back toward the course track egress point.
36. The safety check apparatus of any of the preceding claims, wherein the track further comprises a staging area track section for fitting and/or unfitting users with components of the lanyard system.
37. The safety check apparatus of any of the preceding claims, wherein the harness is coupled to the lanyard via one or more carabiners.
38. A method for testing a lanyard system at an entrance to a challenge course, wherein a track is arranged at the entrance above a supporting surface and connected to a course track which traverses the challenge course, the method comprising the steps of: coupling a connection point of a harness worn by a user to a connection point of a lanyard, wherein the lanyard is attached to a moveable member which is secured to and displaceable relative to the track, the lanyard extends a length from the moveable member, and the track comprises a first position and a second position, the first position being a first vertical distance above the supporting surface, the second position being a second vertical distance above the supporting surface, and the first vertical distance is shorter than the second vertical distance; loading at least a portion of the user's weight onto the harness at the second position of the track, whereby the user's weight is supported by components that attach the user to the track in the event of a passed test, and whereby the user's weight is transferred to the supporting surface in the event of a failed test; in the event of a passed test, allowing the user to proceed from the track to the course track of the challenge course; and in the event of a failed test, preventing the user from proceeding from the track to the course track.
39. The method of claim 38, wherein at least a majority of the user's weight is loaded onto the harness.
40. The method of claim 39, wherein at least 75% of the user's weight is loaded onto the harness.
41. The method of claim 40, wherein at least 95% of the user's weight is loaded onto the harness.
42. The method of claim 41, wherein all the user's weight is loaded onto the harness.
43. The method of any of claims 38-42, further comprising: in the event of a failed test, checking the components that attach the user to the track, refitting one or more components that attach the user to the track as determined by said checking, and retesting until there is a passed test before allowing the user to proceed from the track to course track of the challenge course.
44. The method of any of claims 38-43, further comprising: opening a test entry gate along the track to allow the user with the moveable member to move into the second section of the track; closing the test entry gate after the user with the moveable member moves into the second section of track to prevent a subsequent user with another moveable member from entering the second section of the track while the user is undergoing testing; and in the event of a passed test, opening the test entry gate to allow the subsequent user with another moveable member to enter the second section of the track for testing.
45. The method of any of claims 38-44, further comprising: in the event of a failed test, keeping a test exit gate along the track closed to prevent the user with the moveable member from moving out of the second section of track until there the user has a passed test; and in the event of a passed test, opening the test exit gate to allow the user with the moveable to proceed to the course track of the challenge course, whereby the test exit gate is closed again once the user with the moveable member moves out of the second section of the track to prevent a subsequent user with another moveable member from bypassing testing.
46. The method of any of claims 38-45, further comprising: changing the appearance of a visual indicator according to a testing status.
47. The method of any of claims 38-46, wherein when the user's weight is loaded onto the harness, the connection point of the harness is positioned higher above the supporting surface at the second position of the track than at the first position of the track.
48. The method of any of claims 38-47, wherein the difference between the first vertical distance of the first position of the track and the second vertical distance of the second position of the track corresponds to the height that a user falls when the user steps or falls off an element of the challenge course before being caught by the lanyard, which is coupled to the harness and secured with respect to the course track traversing the challenge course via the moveable member.
49. The method of any of claims 38-48, wherein the first vertical distance of the first position of the track above the supporting surface is the same as the height between an element of the challenge course and a course track traversing said element.
50. The method of any of claims 38-49, wherein the first vertical distance of the first position of the track above the supporting surface is selected to make it easier for the user to reach the lanyard and move the moveable member connected to the lanyard along the track, at least compared to the second vertical distance of the second position of the track.
51. The method of any of claims 38-50, wherein the second vertical distance of the second position of the track above the supporting surface is selected to make it easier for the user to move from sitting in the harness to standing on the supporting surface, at least compared to the first vertical distance of the first position of the track.
52. The method of any of claims 38-51, further comprising: moving the lanyard with the moveable member attached into the second position of the track prior to coupling the harness to the lanyard, wherein the lanyard comprises a plurality of connection points, and the connection point of the harness is coupled to the first adjacent connection point of the lanyard which is below the connection point of the harness when the user wearing the harness is standing under the second position of the track and the length of the lanyard is pulled downward from the moveable member in the track above.
53. The method of any of claims 38-50, wherein the second vertical distance, which extends between the supporting surface and the second position of the track, is configured to prevent the user's feet from contacting the supporting surface when the user's weight is loaded onto the harness and the user is supported by components that attach the user to the track in the event of a passed test.
54. The method of claim 38-53, wherein the user falls to the supporting surface in the event of a failed test.
55. The method of any of claims 38-54, wherein the harness is coupled to the lanyard via one or more carabiners.
56. The method of any of claims 38-55 performed using the safety check apparatus according to any of claims 1-37.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0044] The present disclosure is described hereafter based on illustrative embodiments with reference to the following figures:
[0045]
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[0064] Before further explaining the depicted embodiments, it is to be understood that the invention is not limited in its application to the details of the particular arrangements shown, since the invention is capable of other embodiments. It is intended that the embodiments and figures disclosed herein are to be considered illustrative rather than limiting. Also, the terminology used herein is for the purposes of description and not limitation.
DETAILED DESCRIPTION
[0065] Certain terminology is used in the following description for the purposes of clear and concise explanation, and should not be considered or construed as limiting. For example, terms such as connected, attached, coupled, or similar language includes both directly and indirectly connected, attached, and coupled. This convention not only applies to the terms specifically mentioned, but also to similar, related, and derivative terms and phrases as well. Further, the term lanyard is used herein as a term of convenience for purposes of description, but should be construed to include functional equivalents to lanyards, such as tethers, ropes, cords, cables and the like, or any other length of material or device that is capable of providing an attachment between a user and the challenge course as described below. This same principle applies to other terms used herein as well, such as movable member, harness, carabiner to only name a few.
[0066]
[0067]
[0068] Therefore, a safety check apparatus according to the present disclosure may be provided to reduce the likelihood of lanyard system attachment issues going undetected. As shown in the embodiments of
[0069] The track 510, 610, 710, 810, 910, 1010 comprises at least a first position 530, 630, 730, 830, 930, 1030 and a second position 540, 640, 740, 840, 940, 1040. The first position 530, 630, 730, 830, 930, 1030 of the track 510, 610, 710, 810, 910, 1010 is provided at a first vertical distance 535, 635, 735, 835, 935, 1035 above the supporting surface 520, 620, 720, 820, 920, 1020. The second position 540, 640, 740, 840, 940, 1040 of the track 510, 610, 710, 810, 910, 1010 is provided at a second vertical distance 545, 645, 745, 845, 945, 1045 above the supporting surface 520, 620, 720, 820, 920, 1020. The first vertical distance 535, 635, 735, 835, 935, 1035 of the first position 530, 630, 730, 830, 930, 1030 is shorter than the second vertical distance 545, 645, 745, 845, 945, 1045 of the second position 540, 640, 740, 840, 940, 1040. Both vertical distances 535, 635, 735, 835, 935, 1035 and 545, 645, 745, 845, 945, 1045 are longer than the length of the lanyard 70 (see
[0070] In the first position 530, 630, 730, 830, 930, 1030 of the track 510, 610, 710, 810, 910, 1010, the user 50 may stand on, walk on, or otherwise be supported by the supporting surface 520, 620, 720, 820, 920, 1020. Therefore, the length of lanyard 70 is slack when the lanyard 70 is attached to a user 50 at the first position 530, 630, 730, 830, 930, 1030. The first vertical distance 535, 635, 735, 835, 935, 1035 may correspond to the vertical distance between the user 50 and the course track 30 throughout rest of the challenge course 10, whereby the length of the lanyard 70 between the moveable member 80 and the connection point of the lanyard 70 to the harness 60 is long enough to provide an adequate amount of freedom of motion for navigating course elements 40, but short enough to reduce the risk of entanglement and the distance the user 50 will fall before being caught by the lanyard system.
[0071] In the second position 540, 640, 740, 840, 940, 1040 of the track 510, 610, 710, 810, 910, 1010, the user 50 may or may not be able to stand on, walk on, or otherwise be supported by the supporting surface 520, 620, 720, 820, 920, 1020 depending on the particular embodiment. Regardless, however, the lanyard 70 is configured to be taut when the user 50 sits or leans into, or his lifted up by, his or her harness 60 at the second position 540, 640, 740, 840, 940, 1040. At the second position 540, 640, 740, 840, 940, 1040, at least a portion of the weight of the user 50 is transferred to the harness 60, lanyard 70, moveable member 80, and any connection pieces therefor (the lanyard system), and thereby the track 510, 610, 710, 810, 910, 1010 above; it being appreciated that all the weight of the user 50 may not necessarily be transferred to the lanyard system, in absolute terms, here if one or more feet of the user 50 remain touching and thus partially supported by the supporting surface 520, 620, 720, 820, 920, 1020 after the user's weight is loaded into the harness 60. Therefore, if the lanyard system is properly connected and functioning, the user 50 will be completely or partially supported by the lanyard system. If completely supported, the user 50 will be suspended by the lanyard system. However, the user 50 will otherwise be supported by the supporting surface 520, 620, 720, 820, 920, 1020 if the lanyard system fails at the second position 540, 640, 740, 840, 940, 1040 when the user's weight is loaded into the harness 60 (catastrophic failure). For example, the user may fall or otherwise descend to the supporting surface 520, 620, 720, 820, 920, 1020, particularly in embodiments where the second vertical distance 545, 645, 745, 845, 945, 1045 is configured to prevent the user's feet from contacting the supporting surface 520, 620, 720, 820, 920, 1020 during testing. In this way, the safety check apparatus 500, 600, 700, 800, 900, 1000 may be used to check whether the user 50 is safely attached to the track 510, 610, 710, 810, 910, 1010. However, the second vertical distance 545, 645, 745, 845, 945, 1045 should not be significantly larger than necessary to elevate all of the weight of the user 50 from the supporting surface 520, 620, 720, 820, 920, 1020, in order to reduce the falling distance and corresponding risk of injury in the event the lanyard system experiences a catastrophic failure at the second position 540, 640, 740, 840, 940, 1040 of the track 510, 610, 710, 810, 910, 1010.
[0072] It should be appreciated that it may also be possible for the user 50 to sit down into the harness 60 at the first position 530, 630, 730, 830, 930, 1030 of the track 510, 610, 710, 810, 910, 1010, such that the lanyard system would bear the full or substantially the full weight of the user 50 at that location, thereby checking the safety of the attachment. However, since the first vertical distance 535, 635, 735, 835, 935, 1035 is smaller than the second vertical distance 545, 645, 745, 845, 945, 1045 both being larger than the length of the lanyard 70 the user 50 would need to sit down into the harness 60 vertically lower along first vertical distance 535, 635, 735, 835, 935, 1035 as compared to the second vertical distance 545, 645, 745, 845, 945, 1045 before being suspended by the lanyard system. This then makes it relatively harder for the user 50 to stand back up under his or her own strength at the first position 530, 630, 730, 830, 930, 1030 as compared to the second position 540, 640, 740, 840, 940, 1040 of the track 510, 610, 710, 810, 910, 1010. For this reason, the safety check apparatus 500, 600, 700, 800, 900, 1000 includes the second position 540, 640, 740, 840, 940, 1040 instead of only the first position 530, 630, 730, 830, 930, 1030 by itself. In this way, the safety check apparatus 500, 600, 700, 800, 900, 1000 can approximate a user-fall scenario in a safe and controlled setting.
[0073] Turning now to individual embodiments,
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[0080] The track 1110 includes a moveable track section 1115. The moveable track section 1115 is displaceable between a first height and a second height, wherein the second height of the moveable track section 1115 is vertically lower than the first height of the moveable track section 1115. The moveable member 80 mounted in the track 1110 can be slid into the moveable track section 1115, and then a load may be introduced into the lanyard system including the connections between the harness 60 and lanyard 70 and the lanyard 70 and moveable member by the user 50 sitting down or leaning into the harness 60. If the lanyard system supports the load, the connection would pass the safety check and the user 50 would be allowed to proceed forward, such as into the course track 30 traversing the challenge course 10, which is connected to the track 1110 of the safety check apparatus 1100. If the lanyard system does not support the load (e.g., if the user's harness 60 detached from the lanyard 70), the connection would fail the safety check and the user 50 may then be refitted in the lanyard system and retested.
[0081] A test entry gate 1120 located before the moveable track section 1115 may ensure only one user is being tested at a time. For example, the gate 1120 may not open to allow a user 50 to enter the moveable track section 1115 until the previous user has completed the safety check and exited the moveable track section 1115. A test exit gate 1125 located after the moveable track section 1115 may ensure a user cannot proceed forward unless the test was successful. The gates 1120, 1125 may be provided in the tracking 1110 to block the path of the moveable member 80 therethrough (see
[0082] The load, provided by the user sitting down or leaning into the harness 60, introduced into the lanyard system causes the moveable member 80 to act on the moveable track section 1115 with a downward force. If the lanyard system supports the load, the moveable track section 1115 will be vertically displaced downward from the first height to the second height. This results in a passed safety check test. If the lanyard system does not support the load, the moveable track section 1115 will not be displaced and the applied load will otherwise be transferred to the supporting surface 1120, such as by the user 50 falling to the ground. This results in a failed safety check test. A moveable track section sensor 1130 may be configured to monitor and detect when the moveable track section 1115 is displaced downward to the second height. The sensor 1130 may then subsequently send a signal to unlock the test exit gate 1125, located after the moveable track section 1115, or to a logic controller 1155 which would then send a signal to unlock the test exit gate 1125, thereby allowing the user 50 to continue through the safety check apparatus 1100. The moveable track sensor 1130 could be a proximity sensor, weight sensor, or any other suitable sensor for verifying that the moveable track section 1115 is loaded. The difference between the first height and the second height of the moveable track section 1115 may be selected based on the sensitivity and accuracy of the moveable track sensor 1130 (e.g., the moveable track section 1115 could only need to be displaced about 1 cm or less depending on the quality of the sensor 1130).
[0083] To ensure that users are not pulling down on the lanyard 70 with their arms to displace the moveable track section 1115 and trigger the sensor 1130, or supporting the connection between the harness 60 and the lanyard 70 during the test by holding onto the same, additional sensors 1135 may be provided which users would have to trigger through the use of their hands. For example, at least one hand element 1140 may be located on either side of the moveable track section 1115, with at least one hand element sensor 1135 configured to monitor and detect when each hand element 1140 has been engaged by the user 50. To engage the hand elements 1140 and trigger these sensors 1135, a user 50 may have to pull upwardly or downwardly on ropes, press buttons, actuate levers, or perform similar actions to ensure the user's hands are not on the lanyard 70. In the depicted embodiment, the hand elements 1140 are provided by ropes. With this system, the gate 1125 located after the moveable track section 1115 could be set up to remain locked until simultaneously receiving signals (directly or indirectly) from the moveable track sensor 1130 and both hand element sensors 1135. Like the moveable track sensor 1130, the hand element sensors 1135 could be proximity sensors, weight sensors, or any other suitable type of sensor for verifying that the hand elements 1140 have been loaded. In the case of disabled or amputee users, facility personnel may be able to unlock the test exit gate 1125, override the hand element sensors 1135, or otherwise assist in activating the hand elements 1140 to trigger the sensors 1135.
[0084] The safety check apparatus 1100 may have a tensioner 1145 to ensure that the moveable track section 1115 resets from the second height to the first height after the safety check is completed. For example, the tensioner 1145 may comprise a spring, counterweight, or any other suitable method of lifting the moveable track section 1115 back to the first height. In some embodiments, the sensor 1130 may detect displacement of the tensioner 1145 as a proxy for displacement of the moveable track section 1115, rather than detect displacement of the moveable track section 1115 directly. The tensioner 1145 may be configured to bias the moveable track section 1115 at the first height until the biasing force of the tensioner 1145 is overcome by the load introduced into the lanyard system by the user 50. In this way, the safety check test will fail by default to reduce the risk of false positives. In some embodiments, the biasing force of the tensioner 1145 could be set to filter out users (e.g., if the challenge course is not intended for young children, the biasing force could be set to 60 lbs or any other appropriate value depending on the challenge course). The biasing force could also be set to correspond to the minimum force required to ensure the lanyard 70 is coupled to the harness 60 for a particular lanyard system. For example, in some lanyard systems, the harness 60 has a chest loop through which the lanyard 70 is inserted before being coupled to the harness 70 via one or more carabiners 90. In this case, the force needed to test whether the harness 70 is coupled to the lanyard 60 must be great enough to overcome a frictional force holding the lanyard 60 in the chest loop of the harness 70. If the harness 70 is not properly coupled to the lanyard 60 via a carabiner 90, the harness 70 will separate from the lanyard 60 when such a force is applied. This has been observed to occur with about 30 lbs. of force for certain lanyard systems, but may be less depending on the specific design of the lanyard system.
[0085] Additionally, one or more indicators 1150 could be incorporated into the system to notify users that they have passed the test and that the test exit gate 1125 has been unlocked, thereby allowing them to proceed forward. For example, the indicator 1150 could utilize visual indication, audible indication, or combination thereof. In the depicted embodiment, the indicator 1150 emits visual light. The light may change from red to green, for example, to communicate that the user may move forward out of the test area. The safety check apparatus 1100 may further comprise a logic controller 1155 (shown with electrical box housing) which receives input signals from the sensors 1130, 1135 and transmits output signals to the gates 1120, 1125 and indicator 1150 to coordinate operation of the system.
[0086] In the depicted safety check apparatus 1100, the track 1110 has a first position 1160 and a second position 1170 (see
[0087] Accordingly, in the embodiment of
[0088] However, it should be appreciated that the safety check apparatus 1100 need not necessarily have a first and second track position 1160, 1170 with different vertical distances 1165, 1175 to practice certain aspects, and achieve advantages therefrom, of the safety check apparatus described in reference to this embodiment. The track 1110 of the safety check apparatus 1100 could instead be level or substantially level across the moveable track section 1115 (at the first height) and adjacent portions of the track 1110, while incorporating aspects such as moveable track sections 1115, test entry gates 1120, test exit gates 1125, moveable track section sensors 1130, hand element sensors 1135, hand elements 1140, tensioners 1145, indicators 1150, and/or logic controllers 1155. Additionally, although described in reference to this particular embodiment, one or more of these aspects may also be used with any of the other embodiments described herein.
[0089] As seen in the bottom view of
[0090] Additionally, one or more bypass track one-way gates 1550 allow users to move from the ingress point side to the egress point side of the bypass track section 1540, but not vice versa. Likewise, one or more egress track one-way gates 1560 allow users to move along the track 1110 from the course track egress point 1530 toward the track access point 1500, but not vice versa. In this way, the one-way gate 1560 prevents users from bypassing the safety check test by using the course track egress point 1530 to enter the challenge course 10. After passing through the course track egress point 1530 or the bypass track section 1540, and the corresponding gates 1550, 1560, the user 50 may then proceed along the track 1110 to exit via the access point 1500. As previously described in reference to the test entry and exit gates 1120, 1125, the gates 1550, 1560 may be provided in the overhead tracking to block the path of the moveable member 80 therethrough. The gates 1550, 1560 could also physically block the path of the user 50, like in the manner of a turnstile or door. In some embodiments, the track 1110 may comprise one or more staging area track sections 1570 for users to be fitted with and/or unfitted from the lanyard system. Lanyard systems not currently in use may also be stored in the staging area track section 1570 for ready access when needed. The staging area track section 1570 may be arranged off a pathway of the track intersection 1510 to avoid user traffic congestion, such that the staging area track section 1570 does not impede pathways between the track access point 1500 and the course track ingress or egress points 1520, 1530.
[0091] Although described in reference to the embodiment of
[0092]
[0093] In a modified embodiment of the safety check apparatus 1600 (not shown), the track 1610 comprises a force sensor in the testing area of the track 1610; the testing area corresponding to the second position 1670 of the track 1610 in the depicted embodiment. For example, the force sensor may be a force sensor pad provided along the surface of the track 1610 which contacts and supports the moveable member 80. In this case, the force sensor is configured to monitor and detect a load introduced into the lanyard system by measuring the force being applied to the force sensor by the moveable member 80. A force threshold may be selected as desired for a given application, which must be met or exceeded in the event of a passed test. If the force applied to the force sensor by the moveable member 80 meets or exceeds the selected force threshold, then the lanyard system will have successfully passed testing. The indicator 1650 indicates when the force measured by the force sensor meets or exceeds the selected force threshold. In some embodiments, the logic controller 1655 controls operation of the test entry gate (not shown), the test exit gate 1625 and/or the indicator 1650 based on input received from the force sensor indicating that a measured force has met or exceeded the selected force threshold. In some embodiments, the safety check apparatus 1600 comprises one or more hand elements and hand element sensors, as described above in reference to the safety check apparatus 1500, to ensure that a user 50 is not using his or her hands to pull down on the lanyard system and causing the force sensor to register a false positive.
[0094] In the depicted embodiments, the tracking 510, 610, 710, 810, 910, 1010, 1110, 1610 of the safety check apparatus 500, 600, 700, 800, 900, 1000, 1100, 1600 is connected to and transitions into, and may be integral with, the tracking 30 of the challenge course 10. This configuration allows the user 50 to continue directly into the challenge course 10 after going through the safety check apparatus 500, 600, 700, 800, 900, 1000, 1100, 1600. However, it should be appreciated that the safety check apparatus 500, 600 700, 800, 900, 1000, 1100, 1600 could instead be provided by a standalone structure offset from the challenge course 10. In that case, the track 510, 610, 710, 810, 910, 1010, 1110, 1610 would not be connected to the course track 30 of the challenge course 10. Rather, the user 50 would test his or her lanyard system on the separate safety check apparatus 500, 600, 700, 800, 900, 1000, 1100, 1600 before entering the challenge course 10. Then, the moveable member 80 could be removed from the track 510, 610, 710, 810, 910, 1010, 1110, 1610 of the safety check apparatus 500, 600, 700, 800, 900, 1000, 1100, 1600 and engaged to the actual course track 30 of the challenge course 10 at the course entrance 20.
[0095] The method for testing a lanyard system at an entrance to a challenge course, previously described above, may be performed using any of the depicted embodiments of the safety check apparatus 500, 600, 700, 800, 900, 1000, 1100, 1600.
[0096] While a number of aspects and embodiments have been discussed above, those of skill in the art will recognize certain modifications, permutations, additions and sub-combinations therefore. It is therefore intended that the following appended claims hereinafter introduced are interpreted to include all such modifications, permutations, additions and sub-combinations, which are within their true spirit and scope. Each embodiment described herein has numerous equivalents.
[0097] The terms and expressions which have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, but it is recognized that various modifications are possible within the scope of the invention claimed. Thus, it should be understood that although the present invention has been specifically disclosed by preferred embodiments and optional features, modification and variation of the concepts herein disclosed may be resorted to by those skilled in the art, and that such modifications and variations are considered to be within the scope of this invention as defined by the appended claims. Whenever a range is given in the specification, all intermediate ranges and subranges, as well as all individual values included in the ranges given are intended to be included in the disclosure. When a Markush group or other grouping is used herein, all individual members of the group and all combinations and sub-combinations possible of the group are intended to be individually included in the disclosure.
[0098] In general, the terms and phrases used herein have their art-recognized meaning, which can be found by reference to standard texts, journal references and contexts known to those skilled in the art. The above definitions are provided to clarify their specific use in the context of the invention.
LIST OF REFERENCE NUMERALS
[0099] 10 challenge course [0100] 20 course entrance [0101] 30 course track [0102] 40 course element or obstacle [0103] 50 user [0104] 60 harness [0105] 70 lanyard [0106] 80 moveable member [0107] 90 carabiner [0108] 500 safety check apparatus [0109] 510 track [0110] 520 supporting surface [0111] 530 first position of track [0112] 535 vertical distance between first position and supporting surface [0113] 540 second position of track [0114] 545 vertical distance between second position and supporting surface [0115] 550 first portion of track [0116] 560 second portion of track [0117] 600 safety check apparatus [0118] 610 track [0119] 620 supporting surface [0120] 630 first position of track [0121] 635 vertical distance between first position and supporting surface [0122] 640 second position of track [0123] 645 vertical distance between second position and supporting surface [0124] 650 platform [0125] 700 safety check apparatus [0126] 710 track [0127] 720 supporting surface [0128] 730 first position of track [0129] 735 vertical distance between first position and supporting surface [0130] 740 second position of track [0131] 745 vertical distance between second position and supporting surface [0132] 750 platform [0133] 760 rail portion of track [0134] 770 elements [0135] 800 safety check apparatus [0136] 810 track [0137] 820 supporting surface [0138] 830 first position of track [0139] 835 vertical distance between first position and supporting surface [0140] 840 second position of track [0141] 845 vertical distance between second position and supporting surface [0142] 850 vertical dip [0143] 900 safety check apparatus [0144] 910 track [0145] 920 supporting surface [0146] 930 first position of track [0147] 935 vertical distance between first position and supporting surface [0148] 940 second position of track [0149] 945 vertical distance between second position and supporting surface [0150] 950 moveable portion of track [0151] 960 lift [0152] 1000 safety check apparatus [0153] 1010 track [0154] 1020 supporting surface [0155] 1030 first position of track [0156] 1035 vertical distance between first position and supporting surface [0157] 1040 second position of track [0158] 1045 vertical distance between second position and supporting surface [0159] 1100 safety check apparatus [0160] 1105 supporting surface [0161] 1110 track [0162] 1115 moveable track section [0163] 1120 first or test entry gate [0164] 1125 second or test exit gate [0165] 1130 moveable track sensor [0166] 1135 hand element sensors [0167] 1140 hand elements [0168] 1145 tensioner [0169] 1150 indicator [0170] 1155 logic controller [0171] 1160 first position of track [0172] 1165 vertical distance between first position and supporting surface [0173] 1170 second position of track [0174] 1175 vertical distance between second position and supporting surface [0175] 1500 track access point [0176] 1510 track intersection [0177] 1520 course track ingress point [0178] 1530 course track egress point [0179] 1540 bypass track section [0180] 1550 bypass track one-way gate [0181] 1560 egress track one-way gate [0182] 1570 staging area track section [0183] 1600 safety check apparatus [0184] 1605 supporting surface [0185] 1610 track [0186] 1625 test exit gate [0187] 1650 indicator [0188] 1655 logic controller [0189] 1160 first position of track [0190] 1165 vertical distance between first position and supporting surface [0191] 1170 second position of track [0192] 1175 vertical distance between second position and supporting surface [0193] 1900 track access point [0194] 1910 track intersection [0195] 1920 course track ingress point [0196] 1930 course track egress point [0197] 1940 bypass track section [0198] 1950 bypass track one-way gate [0199] 1960 egress track one-way gate [0200] 1970 staging area track section