SYSTEM, DEVICE AND METHOD TO FACILITATE TYING A KNOT
20200189775 ยท 2020-06-18
Assignee
Inventors
- Tyler E. Berkey (Charleston, SC, US)
- Daniel Thomas (Summerville, SC, US)
- Matthew L. SCOTT (Charleston, SC, US)
Cpc classification
B65B27/10
PERFORMING OPERATIONS; TRANSPORTING
F16L3/233
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
Abstract
A system, device and method to facilitate tying a knot are provided. In the context of a device, the device includes a fixture defining an internal passage therethrough. The fixture defines a circumferential groove opening through an interior surface of the fixture and into the internal passage. The groove includes first and second groove portions that cross one another. Opposite ends of the groove are coincident and open through an exterior surface of the fixture. With relation to a system, the system includes a fixture and a lead member supply mechanism configured to alternately feed a lead member through the groove and to withdraw the lead member from the groove once the tie member is connected thereto.
Claims
1. A device to facilitate tying a knot, the device comprising: a fixture defining an internal passage therethrough, wherein the fixture defines a circumferential groove accessible through an interior surface of the fixture and in communication with the internal passage, wherein the groove includes first and second groove portions that cross one another, and wherein opposite ends of the groove are coincident and open through an opening defined by an exterior surface of the fixture.
2. A device according to claim 1 wherein the groove further includes a third groove portion parallel to the first groove portion, wherein the second and third groove portions cross one another, and wherein the first, second and third groove portions are disposed sequentially between the opposite ends of the groove.
3. A device according to claim 1 wherein the first and second groove portions have different depths.
4. A device according to claim 1 wherein the groove comprises a channel and a neck extending between the channel and the interior surface of the fixture, wherein the neck has a smaller width than the channel.
5. A device according to claim 1 wherein the fixture comprises first and second fixture components that cooperate to define the first and second groove portions of the groove, wherein the first fixture component defines the first and second groove portions to cross one another and the second fixture component defines the first and second groove portions to have a parallel relationship.
6. A system to facilitate tying a knot, the system comprising: a fixture defining an internal passage therethrough, wherein the fixture defines a circumferential groove accessible through an interior surface of the fixture and in communication with the internal passage, wherein the groove includes first and second groove portions that cross one another; and a lead member supply mechanism configured to alternately feed a lead member through the groove and to withdraw the lead member from the groove once a tie member is connected thereto.
7. A system according to claim 6 wherein the lead member supply mechanism is configured to feed the lead member through the groove by pushing the lead member lengthwise through the groove in a first direction and to withdraw the lead member from the groove by retracting the lead member from the groove such that the tie member is pulled through the groove in a second direction, opposite the first direction.
8. A system according to claim 6 wherein opposite ends of the groove are coincident and open through an opening defined through an exterior surface of the fixture, and wherein the lead member supply mechanism is configured to feed the lead member through the groove by inserting the lead member through the opening and into the groove and to withdraw the lead member from the groove by withdrawing the lead member through the opening.
9. A system according to claim 6 wherein the lead member supply mechanism comprises: a supply of the lead member; and one or more rotatable feed members configured to engage the lead member and to alternately feed the lead member to and withdraw the lead member from the groove.
10. A system according to claim 9 further comprising: a supply of the tie member; and a housing that engages and positionally maintains the fixture, supplies of the lead member and the tie member and the one or more rotatable feed members.
11. A system according to claim 6 wherein the groove further includes a third groove portion parallel to the first groove portion, wherein the second and third groove portions cross one another, and wherein the first, second and third groove portions are disposed sequentially between the opposite ends of the groove.
12. A system according to claim 6 wherein the first and second groove portions have different depths.
13. A system according to claim 6 wherein the groove comprises a channel and a neck extending between the channel and the interior surface of the fixture, wherein the neck has a smaller width than the channel.
14. A system according to claim 6 wherein the fixture comprises first and second fixture components that cooperate to define the first and second groove portions of the groove, wherein the first fixture component defines the first and second groove portions to cross one another and the second fixture component defines the first and second groove portions to have a parallel relationship.
15. A method to facilitate tying a knot, the method comprising: positioning a fixture about a workpiece such that the workpiece extends through an internal passage defined by the fixture, wherein the fixture defines a circumferential groove accessible through an interior surface of the fixture and in communication with the internal passage, and wherein the groove includes first and second groove portions that cross one another; inserting a tie member through the groove such that the tie member extends lengthwise through the groove; forcing the tie member to move inward toward the workpiece and out of the groove; and removing the fixture from the workpiece to permit the knot to be formed from the tie member.
16. A method according to claim 15 wherein inserting the tie member through the groove comprises: feeding a lead member through the groove; connecting the tie member to the lead member; and withdrawing the lead member from the groove such that the tie member is correspondingly inserted through the groove.
17. A method according to claim 16 wherein feeding the lead member through the groove comprises pushing the lead member lengthwise through the groove in a first direction, and wherein withdrawing the lead member comprises retracting the lead member from the groove such that the tie member is pulled through the groove in a second direction, opposite the first direction.
18. A method according to claim 16 wherein feeding the lead member through the groove comprises pushing the lead member lengthwise through the groove in a first direction, and wherein withdrawing the lead member pulling the lead member from the groove such that the tie member connected to the lead member is also pulled through the groove in the first direction.
19. A method according to claim 15 wherein the first and second groove portions have different depths such that the lead member that extends through one of the first or second groove portions is inward of and crosses the lead member that extends through another of the first or second groove portions.
20. A method according to claim 15 wherein the groove comprises a channel and a neck extending between the channel and an interior surface of the fixture that faces the workpiece, wherein the neck has a smaller width than the channel, wherein inserting the tie member through the groove comprises inserting the tie member through the channel of the groove, and wherein forcing the tie member to move inward toward the workpiece and out of the groove comprises forcing the tie member from the channel and through the neck of the groove so as to move out of move out of the groove.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Having thus described example embodiments of the disclosure in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
[0023]
DETAILED DESCRIPTION
[0024] Some example embodiments of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the disclosure are shown. Indeed, various embodiments of the disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Like reference numerals refer to like elements throughout.
[0025] A system, device and method are provided in accordance with an example embodiment in order to facilitate tying a knot, such as a clove hitch knot. The system, device and method facilitate tying a knot with a string about a workpiece. Knots may be tied about a variety of workpieces so as to secure the respective workpieces. In an example embodiment, the workpiece is a wire bundle, such as a bundle of wires, cables, conduits or other elongate members. The workpiece, such as a wire bundle, secured by the knots may be employed in a variety of different applications. For example, a wire bundle secured by one or more knots may extend through a vehicle, such as an automobile, an aircraft, a space vehicle or the like, in order to interconnect various components of the vehicle.
[0026] Referring now to
[0027] As also shown in
[0028] The fixture 16 of an example embodiment includes first and second fixture components 22, 24. The fixture 16 may have a clamshell design so as to alternately open and close about a workpiece 10, such as a wire bundle. As shown in
[0029] The fixture 16 also defines a circumferential groove 28 opening through an interior surface 30 of the fixture and into the internal passage 18. The circumferential groove 28 extends lengthwise and continuously between opposed ends 28a, 28b, as shown in
[0030] The circumferential groove 28 defined by the fixture 16 extends circumferentially at least twice and, in some embodiments, three or more times about the internal passage 18 defined by the fixture. In the illustrated embodiment, for example, the circumferential groove 28 extends three times about the internal passage 18 defined by the fixture 16. The circumferential groove 28 therefore includes a plurality of groove portions, each of which extends once, that is, 360, about the internal passage 18 defined by the fixture 16. The plurality of groove portions are disposed sequentially such that in the illustrated embodiment in which the circumferential groove 28 extends three times about the internal passage 18 defined by the fixture 16, the circumferential groove includes three groove portions, namely, a first groove portion 38 that extends from the opening 34 defined through the exterior surface 32 of the fixture 360 about the internal passage defined by the fixture to the second groove portion 40. The second groove portion 40 then also extends 360 about the internal passage to the third groove portion 42. The third groove portion 42 then extends from the second groove portion 40 360 about the internal passage 18 defined by the fixture 16 to the opening 34 through the exterior surface 32 of the fixture. In the embodiment in which the fixture 16 includes first and second fixture components 22, 24, each groove portion is defined by each of the first and second fixture components such that the first and second fixture components cooperate to define the circumferential groove 28 in general and, more particularly, each of the first, second and third groove portions 38, 40, 42.
[0031] In order to facilitate tying a knot 12, the first and second groove portions 38, 40 are defined by the fixture 16 and, more particularly, the first fixture component 22 so as to cross one another. In the embodiment in which the circumferential groove 28 includes first, second and third groove portions, the second and third groove portions 40, 42 may also be defined so as to cross one another. In this example embodiment, the first and third groove portions 38, 42 may be defined so as to be parallel to one another with the second groove portion 40 being defined so as to extend at an angle to both the first and third groove portions such that the second groove portion crosses both the first and third groove portions.
[0032] In an example embodiment of
[0033] As indicated by the arrows designated 1 in
[0034] The circumferential groove 28 may have various configurations and shapes. In an example embodiment shown in more detail in
[0035] Although the fixture 16 may be formed in various manners, the fixture of an example embodiment may be additively manufactured or laser printed. In order to facilitate laser printing of a fixture without support material and as a single piece, the channel 44 of an example embodiment includes angled surfaces that converge to the neck 46, such as shown in
[0036] In an example embodiment, the first and second groove portions 38, 40 have different depths as measured relative to the interior surface 30 of the fixture 16. In an embodiment that includes first, second and third groove portions, the first and third groove portions 38, 42 may have the same depth D.sub.1 and the second groove portion 40 may have a different depth D.sub.2 than either the first or third groove portions. In this example embodiment, the second groove portion 40 has a greater depth D.sub.2 than the depth D.sub.1 of the first and third groove portions 38, 42, thereby extending further into the fixture 16 from the interior surface 30 thereof. Although the entirety of the second groove portion 40 may have a greater depth than the first and third groove portions 38, 42, the fixture 16 of an example embodiment is configured such that the part of the second groove portion that crosses the first and third groove portions (namely, the part of the second groove portion circled at 40a in
[0037] The fixture 16 permits a knot 12, such as a clove hitch knot, to be tied about a workpiece 10, such as a wire bundle. As shown in block 60 of
[0038] As shown in block 62 of
[0039] The tie member may be inserted through the circumferential groove 28 by hand, such as by pushing the tie member through the circumferential groove. In order to facilitate the insertion of the tie member, a lead member may initially be inserted through the groove 28, such as by being pushed through the groove. While sufficiently flexible to follow the circumferential groove 28 about the internal passage 18, the lead member is more rigid than the tie member. For example, the lead member may be formed of a metal, such as spring steel, and may be in the form of a flat ribbon. A first end of the lead member may be inserted into the groove 28 and the tie member may be attached, such as by a clip, to an opposed second end of the lead member. The lead member may then be inserted in a first direction through the groove. Once the lead member emerges from the opening 34 defined by the exterior surface 32 of the fixture 16 after having passed through the circumferential groove 28, the first end of the lead member may be pulled such that the lead member is pulled lengthwise in a first direction from the groove while the tie member attached to the lead member is correspondingly pulled in the first direction into the groove. Once the lead member is removed from the groove 28 and the tie member has been correspondingly inserted into the groove, the tie member may be detached from the lead member and the process of forming a knot 12 may continue as described above, such as by pulling the opposed ends of the tie member outwardly relative to the fixture 16 in order to cause the tie member to move out of the groove and to cinch about the workpiece 10, such as the wire bundle, prior to removing the fixture.
[0040] In an example embodiment, a system is provided in accordance with an example embodiment to facilitate tying a knot 12 and, more particularly, to facilitate insertion of the tie member through the circumferential groove 28. As shown in
[0041] In this regard, the lead member supply mechanism 52 is configured to push the lead member 54 lengthwise through the groove 28 in a first direction, such as by inserting the lead member through the opening 34 defined by the exterior surface 32 of the fixture and 16 into the circumferential groove. The lead member 54 may be extended through the entire length of the circumferential groove 28 so as to emerge from the fixture 16 through the same opening 34 defined through the exterior surface 32 thereof. In this example embodiment, the tie member 56 may then be connected to the lead member 54, such as by means of a clip, e.g., an alligator clip. The lead member supply mechanism 52 is then configured to withdraw the lead member 54 from the groove 28 by retracting the lead member from the groove such that the tie member 56 is pulled through the groove by the lead member. In this regard, the lead member supply mechanism 52 is configured to withdraw the lead member 54 from the groove 28 by withdrawing the lead member through the same opening 34 defined by the exterior surface 32 of the fixture 16 with the tie member 56 connected thereto. By withdrawing the lead member 54, the tie member 56 is correspondingly pulled through the groove 28. The tie member 56 may then be disengaged from the lead member 54 such that the opposed ends of the tie member extend through the opening 34 defined by the exterior surface 32 of the fixture 16. A force may then be applied to the opposed ends of the tie member 56 in order to force the tie member to move inward toward the workpiece 10 and out of the groove 28 prior to removing the fixture 16 from the workpiece and permitting the knot 12 having the configuration defined by the circumferential groove of the fixture to be tied. As the foregoing example illustrates, the lead member supply mechanism 52 is configured to push the lead member 54 lengthwise through the groove in a first direction (such that the lead member initially enters the third groove portion 42 prior to be pushed through the second groove portion 40 and finally the first groove portion 38) and to subsequently withdraw the lead member from the groove by retracting the lead member from the groove such that the tie member is pulled through the groove in a second direction, opposite the first direction.
[0042] As shown in
[0043] In an example embodiment, the direction in which the feed member(s) 58 rotate and, as a result, whether the lead member 54 is inserted into or withdrawn from the circumferential groove 28 may be defined by a selection mechanism (not shown) such as a toggle switch, that permits a user to alternately configure the system 50 to cause the one or more feed member(s) to rotate so as to insert the lead member into the circumferential groove or, alternately, to withdraw the lead member from the groove. In an alternative embodiment, the lead member 54 may assume a coiled position in the absence of external forces. While engaged by the one or more feed member(s) 58, the lead member 54 may be advanced through the circumferential groove 28. In order to withdraw the lead member 54 from the groove 28 in this example embodiment, the feed member(s) 58 may be configured to disengage from the lead member, such as by being raised relative to the lead member, and the lead member may then return to its coiled position, thereby withdrawing the lead member from the groove.
[0044] The system 50 of the example embodiment of
[0045] As noted above, the tie member 56 can be inserted through the circumferential groove 28 utilizing the system 50 of
[0046] The system 50, device 14 and method of an example embodiment thereby facilitate tying a knot 12, such as a clove hitch knot, about a workpiece 10, such as a wire bundle. As such, knots 12 may be more reliably and more efficiently tied about the workpiece 10. Thus, string can be utilized to tie and secure the workpiece 10, such as the wire bundle, thereby avoiding the additional weight imposed if a comparable number of cable ties, such as zip ties, were utilized. Also, by utilizing the fixture of an example embodiment, knots, such as clove hitch knots, may be reliably tied, thereby increasing the security with which the workpiece 10 is bound.
[0047] Many modifications and other embodiments of the disclosure set forth herein will come to mind to one skilled in the art to which this disclosure pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the disclosure is not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Moreover, although the foregoing descriptions and the associated drawings describe example embodiments in the context of certain example combinations of elements and/or functions, it should be appreciated that different combinations of elements and/or functions may be provided by alternative embodiments without departing from the scope of the appended claims. In this regard, for example, different combinations of elements and/or functions than those explicitly described above are also contemplated as may be set forth in some of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.