Apparatus and methods for connecting and disconnecting threaded connectors
09899787 ยท 2018-02-20
Assignee
Inventors
Cpc classification
B25B17/00
PERFORMING OPERATIONS; TRANSPORTING
B25B13/481
PERFORMING OPERATIONS; TRANSPORTING
H01R43/26
ELECTRICITY
International classification
H01R43/26
ELECTRICITY
B25B17/00
PERFORMING OPERATIONS; TRANSPORTING
Abstract
Apparatus and methods that may be employed to install or remove a threaded connector by allowing a cable or tubing segment attached to the threaded connector to pass through an open pass-through area that is defined to extend through the tool so as to allow the threaded connector to be tightened and/or loosened relative to the fitting by turning the connector a full revolution or more while the cable or tubing is attached to the connector and extending through the tool.
Claims
1. A connection and disconnection tool apparatus, comprising: an offset drive mechanism including both a connector-side axis of rotation and a user-side axis of rotation, the offset drive mechanism configured to mechanically translate rotational motion from the user-side axis of rotation to the connector-side axis of rotation, the user-side axis of rotation being different than the connector-side axis of rotation; a user-side drive interface component configured to be coupled to provide an input rotational motion to the user-side axis of rotation of the offset drive mechanism; and a connector-side drive interface component having one or more connector engagement features and configured to be coupled to receive an output rotational motion from the connector-side axis of rotation of the offset drive mechanism and to rotate in response to the received output rotational motion; where the connector-side drive interface component and the offset drive mechanism each has a side-accessible pass-through area defined therein that includes a peripheral opening contiguous with an axial open portion that is coincident with the connector-side axis of rotation, and where the side-accessible pass-through in each of the connector-side drive interface component and the offset drive mechanism is aligned in the same axis of rotation when being engaged with a connector, the pass-through area of the connector-side drive interface component being configured to be aligned with the pass-through area of the offset drive mechanism; and where the connector-side drive interface component is a modular connector-side drive interface component having the side-accessible pass-through area, and that is configured to be removable from the offset drive mechanism.
2. The apparatus of claim 1, where the connector-side drive interface component comprises a first spanner having interior connector engagement surfaces defined therein, the first spanner being aligned with the connector-side axis of rotation, and the interior connector engagement surfaces being shaped and dimensioned complementary to one or more external surfaces of a threaded connector.
3. The apparatus of claim 2, where the connector-side drive interface component further comprises an elongated first spacer segment configured to be coupled between the offset drive mechanism and the first spanner when the connector-side drive interface component is coupled to receive an output rotational motion from the connector-side axis of rotation of the offset drive mechanism, the first spacer segment being configured to be coupled in alignment with the connector side axis of rotation at a position proximate to the offset drive mechanism to extend along the connector-side axis of rotation away from the offset drive mechanism to the first spanner to hold the first spanner in alignment with the connector-side axis of rotation at a position distal to the offset drive mechanism, and to receive the output rotational motion from the connector-side axis of rotation at the position proximate to the offset drive mechanism and to translate the output rotation motion to the spanner at the position distal to offset drive mechanism.
4. The apparatus of claim 2, further comprising a backup interface component including a second spanner having interior fastener engagement surfaces defined therein that are shaped and dimensioned complementary to one or more external surfaces of a backup fastener, the second spanner being configured to be aligned with the connector-side axis of rotation; and where the second spanner is configured to be disposed adjacent the first spanner on a distal end of the connection and disconnection tool apparatus such that the first spanner is disposed between the second spanner and the offset drive mechanism in alignment with the connector-side axis of rotation.
5. A connection and disconnection tool apparatus, comprising: an offset drive mechanism including both a connector-side axis of rotation and a user-side axis of rotation, the offset drive mechanism configured to mechanically translate rotational motion from the user-side axis of rotation to the connector-side axis of rotation, the user-side axis of rotation being different than the connector-side axis of rotation: a user-side drive interface component configured to be coupled to provide an input rotational motion to the user-side axis of rotation of the offset drive mechanism; and a connector-side drive interface component having one or more connector engagement features and configured to be coupled to receive an output rotational motion from the connector-side axis of rotation of the offset drive mechanism and to rotate in response to the received output rotational motion; where the connector-side drive interface component and the offset drive mechanism each has a side-accessible pass-through area defined therein that includes a peripheral opening contiguous with an axial open portion that is coincident with the connector-side axis rotation, and where the side-accessible pass-through in each of the connector-side drive interface component and the offset drive mechanism is aligned in the same axis of rotation when being engaged with a connector, the pass-through area of the connector-side drive interface component being configured to be aligned with the pass-through area of the offset drive mechanism; where the connector-side drive interface component comprises a first spanner having interior connector engagement surfaces defined therein, the first spanner being aligned with the connector-side axis of rotation, and the interior connector engagement surfaces being shaped and dimensioned complementary to one or more external surfaces of a threaded connector; where the apparatus further comprises a backup interface component including a second spanner having interior fastener engagement surfaces defined therein that are shaped and dimensioned complementary to one or more external surfaces of a backup fastener, the second spanner being configured to be aligned with the connector-side axis of rotation; and where the second spanner is configured to be disposed adjacent the first spanner on a distal end of the connection and disconnection tool apparatus such that the first spanner is disposed between the second spanner and the offset drive mechanism in alignment with the connector-side axis of rotation; where the connector-side drive interface component further comprises an elongated first spacer segment configured to be coupled between the offset drive mechanism and the first spanner when the connector-side drive interface component is coupled to receive an output rotational motion from the connector-side axis of rotation of the offset drive mechanism, the first spacer segment being configured to be coupled in alignment with the connector side axis of rotation at a position proximate to the offset drive mechanism to extend along the connector-side axis of rotation away from the offset drive mechanism to the first spanner to hold the first spanner in alignment with the connector-side axis of rotation at a position distal to the offset drive mechanism, and to receive the output rotational motion from the connector-side axis of rotation at the position proximate to the offset drive mechanism and to translate the output rotation motion to the first spanner at the position distal to offset drive mechanism; and where the backup interface component further comprises an elongated second spacer segment coupled between the offset drive mechanism and the second spanner, the second spacer segment extending from the offset drive mechanism in adjacent side-by-side relationship to an installed position of the first spacer and first spanner so as to hold the second spanner in alignment with the connector-side axis of rotation with the first spanner positioned between the second spanner and the offset drive mechanism and to prevent the second spanner from rotating with the first spanner in response to the received output rotational motion from the offset drive mechanism; and where the second spacer and the second spanner are configured to pivot outward and away from the first spacer and the first spanner to remove the second spanner from alignment with the connector-side axis of rotation.
6. The apparatus of claim 4, where the backup interface component further comprises a second spacer segment coupled between the offset drive mechanism and the second spanner, the second spacer and the second spanner being configured to rotate together relative to the offset drive mechanism and at least partially around the connector side axis of rotation.
7. The apparatus of claim 2, where the connector-side drive interface component is a modular connector-side drive interface component that is configured to be removable from the offset drive mechanism; and where the offset drive mechanism is configured to be coupled to provide an output rotational motion to different interchangeable modular connector-side drive interface components having different dimensioned and/or shaped interior connector engagement surfaces that are configured to lockingly engage threaded connector members having different outside dimensions and/or shapes, each of the modular connector-side drive interface components having a side-accessible pass-through area defined therein that includes a peripheral opening contiguous with an axial open portion and that is configured to be aligned with the pass-through area of the offset drive mechanism when the modular connector-side drive interface component is coupled to receive an output rotational motion from the connector-side axis of rotation of the offset drive mechanism.
8. The apparatus of claim 1, where the user-side axis of rotation is parallel to the connector-side axis of rotation.
9. The apparatus of claim 1, where the offset drive mechanism comprises a gear system that includes multiple gears.
10. The apparatus of claim 1, where the user-side drive interface component comprises a rotatable handle.
11. The apparatus of claim 1, where the connector engagement features of the connector-side drive interface are configured to lockingly engage an exterior profile of a threaded connector so as to hold the threaded connector as the connector-side drive interface is rotated by the rotational motion received from the offset drive mechanism so as to impart rotation to the threaded connector while a cable or tubing segment that is attached to the threaded connector is received in a position coincident with the connector-side axis of rotation within the side-accessible pass-through openings of the connector-side drive interface component and the offset drive mechanism without any mechanical interference between the cable or tubing segment and either of the connector-side drive interface component and the offset drive mechanism while the connector-side drive interface component rotates the threaded connector by at least one full revolution.
12. A connection and disconnection tool apparatus, comprising: an offset drive mechanism including both a connector-side axis of rotation and a user-side axis of rotation, the offset drive mechanism configured to mechanically translate rotational motion from the user-side axis of rotation to the connector-side axis of rotation, the user-side axis of rotation being different than the connector-side axis of rotation; a user-side drive interface component configured to be coupled to provide an input rotational motion to the user-side axis of rotation of the offset drive mechanism; and a connector-side drive interface component having one or more connector engagement features and configured to be coupled to receive an output rotational motion from the connector-side axis of rotation of the offset drive mechanism and to rotate in response to the received output rotational motion; where the connector-side drive interface component and the offset drive mechanism each has a side-accessible pass-through area defined therein that includes a peripheral opening contiguous with an axial open portion that is coincident with the connector-side axis of rotation, and where the side-accessible pass-through in each of the connector-side drive interface component and the offset drive mechanism is aligned in the same axis of rotation when being engaged with a connector, the pass-through area of the connector-side drive interface component being configured to be aligned with the pass-through area of the offset drive mechanism; where the connector engagement features of the connector-side drive interface are configured to lockingly engage an exterior profile of a threaded connector so as to hold the threaded connector as the connector-side drive interface is rotated by the rotational motion received from the offset drive mechanism so as to impart rotation to the threaded connector while a cable or tubing segment that is attached to the threaded connector is received in a position coincident with the connector-side axis of rotation within the side-accessible pass-through openings of the connector-side drive interface component and the offset drive mechanism without any mechanical interference between the cable or tubing segment and either of the connector-side drive interface component and the offset drive mechanism while the connector-side drive interface component rotates the threaded connector by at least one full revolution; and where the apparatus further comprises at least one cable or tubing retention feature that defines a spreadable retainer opening that is aligned with a peripheral opening of the pass-through area of the connector-side drive interface, the retainer opening being configured to be spread wider to selectably allow the segment of cable or tubing to be inserted into a position coincident with the connector-side axis of rotation within the side-accessible pass-through opening of the connector-side drive interface component and to then narrow to prevent the segment of cable or tubing to be removed from the inserted position so as to retain the segment of cable or tubing in the inserted position coincident with the connector-side axis of rotation within the side-accessible pass-through opening of the connector-side drive interface component.
13. A method of rotating a threaded connector having an attached cable or tubing segment, comprising performing the following steps using the connection and disconnection tool apparatus of claim 1: lockingly engaging a connector-side drive interface component of the connection and disconnection tool apparatus to the threaded connector having one or more connector engagement features; rotating the user-side drive interface component of the connection and disconnection tool apparatus to provide an input rotational motion to a user-side axis of rotation of an offset drive mechanism of the connection and disconnection tool apparatus; mechanically translating rotational motion in the offset drive mechanism from the user-side axis of rotation to a connector-side axis of rotation, the user-side axis of rotation being different than the connector-side axis of rotation; and receiving an output rotational motion from the connector-side axis of rotation of the offset drive mechanism to cause the connector-side drive interface component to rotate the threaded connector in response to the received output rotational motion; where the method further comprises: placing the attached cable or tubing segment of the threaded connector into a position coincident with the connector-side axis of rotation within the axial open portion of the side-accessible pass-through area defined in the connector-side drive interface component and the axial open portion of the side-accessible pass-through area defined in the offset drive mechanism by passing the attached cable or tubing segment through the respective peripheral opening that is contiguous with the axial open portion of each of the side-accessible pass-through areas of each of the connector-side drive interface component and the offset drive mechanism, the pass-through area of the connector-side drive interface component being aligned with the pass-through area of the offset drive mechanism, and causing the connector-side drive interface component to rotate the threaded connector in response to the received output rotational motion while the cable or tubing segment is received in the position coincident with the connector-side axis of rotation within the side-accessible pass-through openings of the connector-side drive interface component and the offset drive mechanism.
14. The method of claim 13, further comprising causing the connector-side drive interface component to rotate the threaded connector at least one full revolution in response to the received output rotational motion while the cable or tubing segment is received in the position coincident with the connector-side axis of rotation within the side-accessible pass-through openings of the connector-side drive interface component and the offset drive mechanism without any mechanical interference between the cable or tubing segment and either of the connector-side drive interface component and the offset drive mechanism.
15. The method of claim 13, where the connector-side drive interface component comprises: a first spanner; and a first spacer segment coupled between the offset drive mechanism and the first spanner while the connector-side drive interface component is receiving an output rotational motion from the connector-side axis of rotation of the offset drive mechanism; where the one or more connector engagement features comprise interior connector engagement surfaces defined within the first spanner that are shaped and dimensioned complementary to one or more external surfaces of the threaded connector, the first spanner being aligned with the connector-side axis of rotation.
16. The method of claim 15, further comprising lockingly engaging interior fastener engagement surfaces of a second spanner of a backup interface component of the connection and disconnection tool apparatus to one or more external surfaces of a backup fastener disposed axially aligned beneath the threaded connector at the same time as lockingly engaging the connector-side drive interface component of the connection and disconnection tool apparatus to the threaded connector; and using the second spanner to prevent the backup fastener from rotating while receiving the output rotational motion from the connector-side axis of rotation of the offset drive mechanism to cause the connector-side drive interface component to rotate.
17. The method of claim 16, where the backup interface component further comprises a second spacer segment pivotably coupled between the offset drive mechanism and the second spanner; and where the method further comprises pivoting the second spacer and the second spanner outward and away from the first spacer and the first spanner while lockingly engaging the connector-side drive interface component of the connection and disconnection tool apparatus to the threaded connector or disengaging the connector-side drive interface component of the connection and disconnection tool apparatus from the threaded connector.
18. The method of claim 16, where the backup interface component further comprises a second spacer segment pivotably coupled between the offset drive mechanism and the second spanner; and where the method further comprises rotating the second spacer and the second spanner relative to the offset drive mechanism and at least partially around the connector side axis of rotation while lockingly engaging the connector-side drive interface component of the connection and disconnection tool apparatus to the threaded connector or disengaging the connector-side drive interface component of the connection and disconnection tool apparatus from the threaded connector.
19. The method of claim 15, where the connector-side drive interface component is a first modular connector-side drive interface component; and where the method further comprises: removing a second modular connector-side drive interface component from the offset drive mechanism; and then coupling the first modular connector-side drive interface component to the offset drive mechanism prior to the step of lockingly engaging the first modular connector-side drive interface component to the threaded connector; where the first modular connector-side drive interface component has different dimensioned and/or shaped interior connector engagement surfaces than the interior connector engagement surfaces of the second modular connector-side drive interface component so as to lockingly engage threaded connector members having different outside dimensions and/or shapes.
20. The apparatus of claim 1, where the user-side drive interface component includes a first spanner coupled to provide an input rotational motion to the user-side axis of rotation of the offset drive mechanism, the first spanner having interior connector engagement surfaces defined therein, the first spanner being aligned with the connector-side axis of rotation, and the interior connector engagement surfaces being shaped and dimensioned complementary to one or more external surfaces of a threaded connector; where the connector-side drive interface component further comprises a first spacer segment coupled between the offset drive mechanism and the first spanner, the first spacer segment being coupled to receive the output rotational motion from the connector-side axis of rotation of the offset drive mechanism and to transfer the output rotational motion to the first spacer; and where the connector engagement features of the connector-side drive interface are configured to lockingly engage an exterior profile of a threaded connector so as to hold the threaded connector as the connector-side drive interface is rotated by the rotational motion received from the offset drive mechanism so as to impart rotation to the threaded connector while a cable or tubing segment that is attached to the threaded connector is received in a position coincident with the connector-side axis of rotation within the side-accessible pass-through openings of the connector-side drive interface component and the offset drive mechanism.
21. The apparatus of claim 20, further comprising a backup interface component including a second spanner and a second spacer segment coupled between the offset drive mechanism and the second spanner, the second spanner having interior fastener engagement surfaces defined therein that are shaped and dimensioned complementary to one or more external surfaces of a backup fastener, the second spanner being aligned with the connector-side axis of rotation; and where the second spanner is disposed adjacent the first spanner on a distal end of the connection and disconnection tool apparatus such that the first spanner is disposed between the second spanner and the offset drive mechanism in alignment with the connector-side axis of rotation.
22. The apparatus of claim 21, where the second spanner is configured to pivot outward and away from the first spacer and the first spanner; and where the second spacer and the second spanner are configured to rotate together relative to the offset drive mechanism and at least partially around the connector side axis of rotation.
23. The apparatus of claim 20, further comprising at least one cable or tubing retention feature having a retainer opening that is defined between spreadable jaws and aligned with a peripheral opening of the pass-through area of the connector-side drive interface, the spreadable jaws of the cable or tubing retention feature being configured to spread apart to allow the segment of cable or tubing to be inserted into a position coincident with the connector-side axis of rotation within the side-accessible pass-through opening of the connector-side drive interface component and to then contract toward each other to retain the segment of cable or tubing in the inserted position coincident with the connector-side axis of rotation within the side-accessible pass-through opening of the connector-side drive interface component.
24. The apparatus of claim 5, where the connector-side drive interface component is configured to be removable from the offset drive mechanism in a direction away from the offset drive mechanism that is parallel and coincident with the connector-side axis of rotation; where the second spanner prevents removal of the connector-side drive interface component from the offset drive mechanism when the second spacer segment holds the second spanner in alignment with the connector-side axis of rotation; and where the where the second spacer segment and second spanner are configured to pivot outward and away from the first spacer and the first spanner to remove the second spanner from alignment with the connector-side axis of rotation so as to allow the removal of the connector-side drive interface component from the offset drive mechanism.
25. The apparatus of claim 5, further comprising a lock coupled to prevent the second spacer segment and second spanner from rotating together relative to the offset drive mechanism, the lock being configured to selectably allow the second spacer segment and second spanner to rotate together relative to the offset drive mechanism to match the clocking of a fastener that may be positioned in-line and beneath a threaded connector of a cable or tubing segment received in a position coincident with the connector-side axis of rotation within the side-accessible pass-through openings of the connector-side drive interface component and the offset drive mechanism.
26. The apparatus of claim 12, where the cable or tubing retention feature comprises a spring.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
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(13) As described further herein, offset drive mechanism 106 rotationally couples the user-side axis of rotation 110 to the connector-side axis of rotation 120 of tool 100 so as to allow a user to provide an input rotational motion to the user-side axis of rotation 110 that is translated by the offset drive mechanism 106 to an output rotational motion from the connector-side axis of rotation 120. In one embodiment a human user may hold the offset drive mechanism 106 stationary with one hand, while using the other hand to input rotational motion to the user-side axis of rotation, in this embodiment by rotating handle 104 and extension member 102.
(14) In the exploded view of the embodiment of
(15) As further illustrated in exploded view of
(16) As further shown in
(17) As illustrated, the spacer segment 108, the offset drive mechanism 106, and the first spanner 112 may be provided with corresponding respective side-accessible open pass-through areas 190, 192 and 194 that each have a peripheral (or side) opening that is contiguous with an axial open portion. As shown, the respective peripheral openings and axial open portions of pass-through areas 190, 192 and 194 may be aligned with each other so as to allow a cable or tubing together with an attached threaded connector to be inserted from the side until the threaded connector is positioned in locking engagement with the first spanner 112, with the attached cable or tubing 910 extending coincident with the connector-side axis of rotation 120 through the spacer segment 108 and the offset drive mechanism 106 as shown in
(18) As illustrated in
(19) In another embodiment, interchangeable first spanner components 112 may be alternatively provided to attach and detach from the terminal or distal end of a separate first spacer segment 108, while spacer segment 108 remains engaged within rotatable receptacle 115 of offset drive mechanism 106. In any case, it will be understood that a modular component 165, spacer segment 108, and/or spanner component 112 may be temporarily or permanently locked within rotatable receptacle 115 via any suitable securement mechanism e.g., via mating threads, mating pin and groove features, mating snap-on spring and groove features, mating pin and hole features, etc.
(20) In a further embodiment, an optional backup interface component in the form of a second spanner 130 disposed on an optional second spacer segment 132 may be provided as shown. As illustrated, such a second spacer segment 132 may be provided to extend from offset drive mechanism 106 in adjacent relationship to a first spacer segment 108 and first spanner 112 so that second spanner 130 is positioned at a distal end 174 of connection and disconnection tool apparatus 100 in position to lockingly engage and hold stationary the exterior flat surfaces of a backup fastener (e.g., threaded backup nut or other type fastener) that that may be positioned adjacent and in-line with a threaded connector so as to prevent the backup fastener from rotating while the threaded connector is being rotated by the first spanner 112 during threaded connector installation or removal.
(21) As illustrated in
(22) In a further exemplary embodiment illustrated in
(23) In one exemplary embodiment, an assembled length of a user-side drive interface component (e.g., including rotatable handle 104 and handle extension member 102) as measured from proximal end 170 of the user-side drive interface component to an attached offset drive mechanism 106 may be from about 2 inches to about 12 inches, and an assembled length of a connector-side drive interface component (e.g., including first spanner 112 and spacer segment 108) as measured from distal end 172 of the connector-side drive interface component to the attached offset drive mechanism 106 may be from about 1 inches to about 8 inches, it being understood that greater and lesser lengths of user-side drive interface components and/or connector-side drive interface components are also possible. In another exemplary embodiment, a total assembled end-to-end length of a connection and disconnection tool apparatus 100 as measured from a proximal end of the user-side drive interface component to a distal end 174 of optional connector-side locking component may be from about 4 inches to about 21 inches. However, it will be understood that total assembled end-to-end length of a connection and disconnection tool 100 may alternatively be greater than about 21 inches or less than about 4 inches in other embodiments.
(24) A connector-side drive interface component may be provided in one exemplary embodiment with one or more optional cable or tubing retention features to retain a segment of cable or tubing within side-accessible open pass-through area/s (e.g., such as pass-through areas 190, 192 and 194) while an attached threaded connector is lockingly engaged and rotated by a first spanner such as the illustrated first spanner 112. Referring to the exemplary embodiment of the Figures, two cable or tubing retention features are provided in the form of respective C-shaped leaf spring members 111 and 109 (e.g., bendable steel, plastic, etc.) that each have a retainer opening defined between a pair of spreadable jaws 109a and 109b or jaws 111a and 111b (shown in profile in
(25) In the illustrated embodiment, the unspread (or relaxed) distance between each pair of jaws 109a/109b and 111a/111b is configured to be slightly less than the outside diameter of a cable or tubing segment 910 to be inserted into open pass-through area/s of the connector-drive interface component such that jaws each pair of jaws 109a/109b and 111a/111b may be spread slightly apart to admit the cable or tubing segment 910 into pass-through areas 190, 192 and 194 such as is illustrated in
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(28) As shown in
(29) Next, as shown in
(30) While the invention may be adaptable to various modifications and alternative forms, specific examples and exemplary embodiments have been shown by way of example and described herein. However, it should be understood that the invention is not intended to be limited to the particular forms disclosed. Rather, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the apparatus and methods described herein. Moreover, the different aspects of the disclosed apparatus and methods may be utilized in various combinations and/or independently. Thus the invention is not limited to only those combinations shown herein, but rather may include other combinations.