CABLE ADJUSTMENT MECHANISM
20190234452 ยท 2019-08-01
Inventors
Cpc classification
F16C2326/01
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16C1/103
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
Abstract
A cable adjustment mechanism for connecting a cable assembly comprising a cable to a bracket, the mechanism comprising: a connecting bushing having a bracket connector for attaching to the bracket, a first body interior for receiving the cable there though, and a cable connector for attaching to the a mechanism body of the cable assembly; the mechanism body having a second body interior for receiving the cable there though, a first end, and a second end for receiving the connecting bushing, the first end opposed to the second end, the second body interior defining an adjustment axis; a spacing member having one end for coupling to a cable body of the cable assembly and another end for coupling with the mechanism body at the first end, the another end opposed to the one end, the spacing member having a third body interior for receiving the cable there through; and a lock for retaining a selected relative position on the mechanism body along the adjustment axis in order to retain a resultant separation distance between the connecting bushing and the cable body; wherein the selected relative position is determined by adjusting a position of the coupling of the one end with respect to the first end along the adjustment axis prior to locking the selected relative position by the lock.
Claims
1. A cable adjustment mechanism for connecting a cable assembly comprising a cable to a bracket, the mechanism comprising: a connecting bushing having a bracket connector for attaching to the bracket, a first body interior for receiving the cable there though, and a cable connector for attaching to the a mechanism body of the cable assembly; the mechanism body having a second body interior for receiving the cable there though, a first end, and a second end for receiving the connecting bushing, the first end opposed to the second end, the second body interior defining an adjustment axis; a spacing member having one end for coupling to a cable body of the cable assembly and another end for coupling with the mechanism body at the first end, the another end opposed to the one end, the spacing member having a third body interior for receiving the cable there through; and a lock for retaining a selected relative position on the mechanism body along the adjustment axis in order to retain a resultant separation distance between the connecting bushing and the cable body; wherein the selected relative position is determined by adjusting a position of the coupling of the one end with respect to the first end along the adjustment axis prior to locking the selected relative position by the lock.
2. The mechanism of claim 1 further comprising a pair of resilient prongs at the first end about the adjustment axis, such that the spacing member is positioned between the pair of resilient prongs.
3. The mechanism of claim 2, wherein the lock is sized for compressing the resilient prongs towards the adjustment axis to restrict conjoint rotation of the mechanism body and the spacing member about the adjustment axis in order to provide said retaining.
4. The mechanism of claim 1 further comprising the mechanism body having first splines at the second end for mating with second splines of the connecting bushing in order to inhibit relative rotation between the connecting bushing and the mechanism body.
5. The mechanism of claim 1 further comprising the mechanism body and the connecting bushing coupled to one another by a connection interface in order to facilitate relative rotation between the connecting bushing and the mechanism body.
6. The mechanism of claim 5, wherein the connection interface includes a tab and a slot.
7. The mechanism of claim 1, wherein an interior dimension of the lock is greater than an exterior dimension of the mechanism body at the second end, thus providing for relative axial movement between the lock and the mechanism body.
8. The mechanism of claim 1, an interior dimension of the lock is less than an exterior dimension of the mechanism body at the first end, thus restricting relative axial movement between the lock and the mechanism body when the lock is positioned at the first end.
9. The mechanism of claim 1, wherein the bracket is for connecting to a frame of a vehicle.
10. The mechanism of claim 9, wherein one end of the cable is connected to a component of the vehicle.
11. The mechanism of claim 10, wherein the component is a latch.
12. The mechanism of claim 2, wherein the pair of resilient prongs have a first set of splines biased towards a second set of splines on the spacer member.
13. The mechanism of claim 12, wherein the said biased provides a residual force so as to facilitate interaction of the first set of splines with the second set of splines as the spacer member is rotated relative to the mechanism body, when the lock is positioned away from the first end in an unlocked position.
14. The mechanism of claim 13, such that when the lock is positioned away from the first end in an unlocked position, said interaction of the first set of splines with the second set of splines includes urging of the pair of resilient prongs to deflect away from one another so that the first set of splines and the second set of splines slip by their peaks and engage their valleys as the spacer member is rotated relative to the mechanism body.
15. The mechanism of claim 1, wherein the lock is positioned about an exterior of the mechanism body, such that the lock is movable along the adjustment axis between an unlocked position and a locked position.
16. The mechanism of claim 1, wherein the spacer member has first threads situated in the body interior for coupling with second threads of the spacing member.
17. The mechanism of claim 12, wherein the lock is slidable along the adjustment axis about a periphery of the mechanism body, such that a first axial position of the lock adjacent to the pair of resilient prongs denotes that the first set of spines and the second set of splines are in a fixed and locked engagement with one another while a second axial position of the lock away from the pair of resilient prongs denotes that the first set of spines and the second set of splines are in unlocked engagement with one another.
18. The mechanism of claim 1, wherein the mechanism body is anchored to the bracket by the connecting bushing.
19. A method for operating a cable adjustment mechanism for connecting a cable assembly comprising a cable to a bracket, the method comprising the steps of: attaching a connecting bushing having a bracket connector to the bracket, the connecting bushing having a first body interior for receiving the cable there though; attaching a cable connector of the connecting bushing to a mechanism body of the cable assembly. the mechanism body having a second body interior for receiving the cable there though, a first end, and a second end for receiving the connecting bushing, the first end opposed to the second end, the second body interior defining an adjustment axis; coupling a spacing member at one end to a cable body of the cable assembly and coupling at another end with the mechanism body at the first end, the another end opposed to the one end, the spacing member having a third body interior for receiving the cable there through; and positioning a lock for retaining a selected relative position on the mechanism body along the adjustment axis in order to retain a resultant separation distance between the connecting bushing and the cable body; wherein the selected relative position is determined by adjusting a position of the coupling of the one end with respect to the first end along the adjustment axis prior to locking the selected relative position by the lock.
20. The method of claim 19, wherein the resultant separation distance is a result of relative rotation between the spacer member and the mechanism body.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Reference is made, by way of example only, to the attached figures, wherein:
[0009]
[0010]
[0011]
[0012]
[0013]
[0014]
DESCRIPTION
[0015] Referring to
[0016] Referring to
[0017] The cable adjustment mechanism 10 can be coupled to a bracket 13 (for connecting to or otherwise part of the frame 7), via the connecting bushing 15 for anchoring the cable adjustment mechanism 10 to the bracket 13. The cable adjustment mechanism 10 also has cooperating adjuster components of the mechanism body 18 coupled to the connecting bushing 15 at the one end 24, the spacing member 20 for coupling to the cable body 21 at the opposing end 26, and a lock 16 for maintaining a separation distance 25 between the ends 24,26 (i.e. spacing) along an adjustment axis 27 (see
[0018] Provided is the adjustment mechanism 10 that can be used advantageously to tension the cable 23 (i.e. increase or decrease the effective length of the cable body 21), while at the same time can help reduce complexity by combining different parts (i.e. the connecting bushing 15 with the adjuster components of the lock 16, mechanism body 18, and spacing member 20) with different functionalities in one single adjustment mechanism 10. The proposed combination of connection to the bracket 13 with tension adjustment ability of the cable 23 can facilitate a reduction in piece price costing and improvements in manufacturability due to, at least in part, a simplified assembly/configuration process between the cable assembly 22 and the bracket 13. In particular, removing any intervening cable body 21 situated between the mechanism body 18 and the connecting bushing 15 (i.e. thereby having direct contact between the connecting bushing 15 and the mechanism body 18) facilitates the simplified assembly/configuration process of connecting the adjustment mechanism 10 to the bracket 13 (and ultimately the frame 7) while at the same time facilitating the tension adjustment process of the cable 23.
[0019] Referring again to
[0020] Referring to
[0021] Referring again to
[0022] Referring to
[0023] The mechanism body 18 also has a pair of prongs 40, which are resiliently connected at the opposing end 26 thereto. The prongs 40 can have a series of splines 42a (facing inwards towards the adjustment axis 27) for coupling with splines 42b of the spacing member 20 (projecting outwards with respect to the adjustment axis 27see
[0024] In operation, the lock 16 is slidable 44 along the adjustment axis 27, for example about a periphery of the mechanism body 18, such that the axial position of the lock 16 in
[0025] Referring to
[0026] In order to adjust the tension of the cable 23, in one embodiment, the spacing member 20 can be rotated 110 about the adjustment axis 27, thereby increasing the separation distance 25 between the ends 24,26 and thus the effective length of the cable body 21. As the separation distance 25 increases, the tension in the cable 23 also increases as the cable 23 of the cable assembly 22 occupies the increase in the space within the mechanism body 18 and the spacing member 20, due to the increase in the separation distance 25, while the cable body 21 of the cable assembly 22 is held in the cable body connector 32 at the other end 26. Once the desired tension of the cable 23 or desired length of the cable 23 protruding from the connecting bushing 15 is reached (i.e. as the relative axial position between the ends 24, 26 increases the tension of the cable 23 also increases as the protruding length decreases), the lock 16 is slid 112 over the exterior dimension 48a of the mechanism body 18, towards and onto the exterior dimension 48b of the prongs 40. It is recognized that as the spacing member 20 is rotated, conjoint rotation of the mechanism body 18 can be inhibited by interaction between the splines 36a, 36b. Subsequent forcing of the lock 16 onto the prongs 40 causes the prongs 40 to bend inwards towards the adjustment axis 27 and thus fixedly engage the splines 42a,b to restrict the splines 42a, b from slipping past each other. Once the splines 42a,b are restricted in relative movement with one another, further relative rotation between the mechanism body 18 and the spacing member 20 is restricted and thus the set tension of the cable 23 is maintained as long as the positioning of the lock 16 inhibits further relative rotational movement between the mechanism body 18 and the spacing member 20.
[0027] As discussed above, it is recognized that the connecting bushing 15 can be rotatably connected to mechanism body 18, so the mechanism body 18 can be rotated about the adjustment axis 27 if the cable 23 is not rotatable. Alternatively, a fixed connection between the connecting bushing 15 and the mechanism body 18 can be provided in the example case where the cable 23 can be rotated about the adjustment axis 27, in which case the spacing member 20 is rotated about the adjustment axis 27 in order to adjust the separation distance 25. Further, the lock 16 (e.g. sleeve) can be slid along the mechanism body 18 towards the prongs 40 in order to secure the prongs 40 so that the prongs 40 are inhibited from deflecting away from another to facilitate a rotation of the spacing member 20 relative to the mechanism body 18 about the adjustment axis 27.
[0028] As discussed above, the cable adjustment mechanism 10 can be for connecting the cable assembly 22 to the frame 7, the mechanism including: the connecting bushing 15 having a bracket connector 15b for attaching to the frame 7, a first body (e.g. bushing) interior 30a for receiving the cable there though, and a cable connector 15a for attaching to the mechanism body 18 of the cable assembly 22; the mechanism body 18 having a second body interior 30b for receiving the cable 23 there though, a first end (e.g. opposing end 26) adjacent to the prongs 40, and a second end (e.g. one end 24) for receiving the connecting bushing 15, the first end opposed to the second end, the second body interior 30b defining the adjustment axis 27; the spacing member 20 having one end 6a (e.g. the cable body connector 32 adjacent to the splines 42b) for coupling to the cable body 21 of the cable assembly 22 and another end 6b (e.g. adjacent to the threads 38b) for coupling with the mechanism body 18 at the first end (e.g. opposing end 26), the another end 6b opposed to the one end 6a, the spacing member 20 having a third body interior 30c for receiving the cable 23 there through; and the lock 16 for retaining a selected relative position between the mechanism body 18 and the spacing member 20 along the adjustment axis 27 in order to define the resultant separation distance 25 between the connecting bushing 15 and the cable body 21; whereby the selected relative position is determined by adjusting a position of the coupling of the one end 6a with respect to the first end (e.g. opposing end 26) along the adjustment axis 27.
[0029] Further, it is recognized that the pair of resilient prongs 40 are situated at the first end (e.g. opposing end 26) of the mechanism body 18 about the adjustment axis 27, such that the spacing member 20 is positioned between the pair of resilient prongs 40 when the spacing member 20 is coupled to the mechanism body 18 (e.g. via mating of the threads 38a, b). Also, it is recognized that the lock 16 can be configured for compressing the resilient prongs 40 towards the adjustment axis 27 to restrict conjoint rotation of the mechanism body 18 and the spacing member 20 about the adjustment axis 27 in order to provide the fixedly retaining (and releasably) of the selected relative position providing the resultant separation distance 25.