JP2003336619A - Terminal fixing device for control cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily manufacturable and inexpensive terminal fixing instrument for a control cable not deteriorating conventional performance of terminal fixing for the control cable, and not having a large play, and to provide a terminal fixing device for the control cable using it. <P>SOLUTION: This terminal fixing instrument A for the control cable fixes a terminal of the control cable to a bracket such that the terminal are not displaced in the axial direction. The instrument A comprises: a cable case 1 having a cylindrical body part 2, an annular groove 3 formed in the peripheral face of the body part 2, and a flange 6 formed adjacently to the annular groove 3; and a snap ring 10 comprising an ark-shaped retention part 11 covering the periphery of the flange 6 and retained by snap fitting, a pair of edges 19a, 19b formed in both ends of the retention part 11 and locked to the bracket, and a hook instrument 15 extending inward from axially-displaced positions of both the ends of the ark-shaped retention part 11. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control cable terminal fixing device for fixing a control cable terminal to a bracket which is a fixing member, and a control cable terminal fixing device using the same.

[0002]

2. Description of the Related Art Conventionally, there is known a terminal fixing device 100 for a control cable, which is composed of a cable case 102, a bracket 105 and a clip 106 as shown in FIG. The cable case 102
Is attached to the end of the control cable 101 and has a groove 103 and flanges 104 a and 104 b formed so as to sandwich the groove 103. The bracket 105
Has a U-shaped mounting hole 107 that removably receives the groove 103 of the cable case 102. The clip 106 is fitted between any one of the two flanges and the bracket 105 so as to face each other, and is curved in the axial direction.

In this case, the bracket 105 and the clip 1
The same cable case 10 so that 06 overlaps in the axial direction.
Since the control cable 101 is fitted in the second groove 103, when the control cable 101 receives a force in the axial direction, the bracket 105 and the clip 106 similarly receive a strong force. Further, by inserting the clip 106 between the flange 104b and the bracket 105, the clip 106 is locked to the bracket 105 by the frictional force due to the elastic restoring force of the bending of the clip 106. Therefore, the clip 106 needs to have thickness and strength. Further, in order to fit the clip 106 into the cable case 102, it is necessary to apply a force from the outside with a hammer or the like, and a space for applying the force to the periphery is necessary.

Further, Japanese Patent Laid-Open No. 2000-87947 or USP. No. The following control cable terminal device is disclosed in 5347882. Figure 8
As shown in FIG.
Is composed of a cable case 111 having a groove 112, a U-shaped spring piece 113 having elasticity in a radial direction, and a bracket 117. The spring piece 113 is provided between the arc-shaped holding portion 114, the end portion 115, and the arc-shaped holding portion 114 and the end portion 115, and forms a dogleg shape outward in the radial direction. And a locking tool 116. The bracket 117 has a U-shaped mounting hole 11 for removably receiving the groove 112 of the cable case 111.
8 and a recess 119 that receives and holds the locking tool 116 of the spring piece 113.

In this case, the spring piece 113 is first fitted into the groove 112 of the cable case 111 so as to face the groove bottom, and then the end portion 115 of the spring piece 113 is pinched inward in the radial direction to form the groove bottom. Between spring and bracket 117
The bracket 117 and the spring piece 113 are fitted so that the bracket 13 and the spring piece 113 overlap. Therefore, the mounting work can be performed with one hand, and a space for assembling around the device is not required. However, when the cable case 111 attached to the end of the control cable is held by the bracket 117, since the spring piece 113 and the bracket 117 are fitted in the groove of the cable case 111, their dimensional accuracy becomes important and rattles. Is a problem.

[0006]

DISCLOSURE OF THE INVENTION The present invention provides a control cable terminal fixing tool which is small in rattling, easy to manufacture, and inexpensive without deteriorating the performance of the conventional control cable terminal fixing. It is a technical subject to provide a terminal fixing device for a control cable used.

[0007]

A terminal fixing device for a control cable according to the present invention is a terminal fixing device for fixing a terminal of a control cable to a bracket so as not to be displaced in the axial direction thereof. A cable case having a portion, an annular groove provided on the outer peripheral surface of the body portion, and a flange provided adjacent to the annular groove, and by being held by being snap-fitted on the outer periphery of the flange. A snap ring composed of a substantially U-shaped holding portion configured so as not to move in the axial direction and not to be pulled out in the radial direction, and a pair of edges provided at both ends of the holding portion and locked to a bracket. It is characterized by being composed of and. Further, it is preferable that the snap ring has a hooking tool extending inward in the radial direction from positions axially displaced from both ends of the substantially U-shaped holding portion. Further, it is preferable that the snap ring is made of synthetic resin.

The control cable terminal fixing device of the present invention comprises the control cable terminal fixing device of the present invention and a bracket having a U-shaped slot, and the edges are provided on the opposite side surfaces of the slot. Has a concave portion that is received and held by snap fitting, and an arc-shaped bottom portion that fits in the annular groove.

[0009]

The control cable terminal fixing device (claim 1) of the present invention comprises a cable case and a snap ring, and the control cable terminal is mounted on the bracket by inserting the annular groove of the cable case into the bracket. It is fixed so that it does not move in the axial direction and the snap ring is locked to the bracket so that the end of the control cable is fixed so as not to move in the radial direction of the bracket. Here, the snap ring is fixed to the outer periphery of the flange of the cable case by snap fitting so as not to be displaced in the axial direction. Therefore, the snap ring can be easily attached and detached. That is,
Even if a force is applied to the control cable in the axial direction,
The movement of the control cable in the axial direction is restricted by the annular groove of the cable case and the bracket, and no force is applied to the snap ring. Therefore, the snap ring need not be as strong as the conventional one. In addition, by pinching both ends of the snap ring holding part inside the opening of the snap ring and locking the edges provided at both ends of the snap ring holding part with the recesses provided in the bracket, The ring can be locked to the bracket. Therefore, the mounting work can be performed with one hand, and the terminal fixing tool for the control cable can be easily mounted on the bracket. Furthermore, the snap ring should match the size of the flange, and the bracket should match the size of the annular groove of the cable case. The size control of each part is easy and, as a result, rattling is reduced. .

When the snap ring has hooks extending inward in the radial direction from axially offset positions of both ends of the arc-shaped holding portion (claim 2), the snap ring is more stably fixed. It also becomes a guide when the snap ring is attached to the cable case, which facilitates the attachment. In addition, the cable case can be prevented from falling out of the bracket when attached to the bracket.

When the snap ring is made of synthetic resin (Claim 3), the weight of the cable terminal fixing device can be reduced, and the manufacturing is easy and the cost can be reduced.

Since the control cable terminal fixing device of the present invention (claim 4) uses the cable terminal fixing device according to any one of the above, it is possible to obtain a terminal fixing device having the same effects as the above-mentioned effects. You can

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a control cable terminal fixing device and a control cable terminal fixing device according to the present invention will now be described with reference to the drawings. 1 is a perspective view showing an embodiment of a control cable terminal fixing tool of the present invention, FIG. 2a is a plan view of FIG. 1, and FIG. 2b is FIG.
FIG. 3a is a plan view of the cable case of FIG. 1, FIG. 3b is a side view of the cable case of FIG. 1, FIG. 4a is a plan view of the snap ring of FIG. 1, and FIG. 4b is a side view of the snap ring of FIG. Fig. 5a is a plan view of the bracket, Fig. 5b is a side view of the bracket, Fig. 6a is a plan view showing an embodiment of a terminal fixing device for a control cable of the present invention, Fig. 6b.
FIG. 1 is a side view showing an embodiment of a control cable terminal fixing device of the present invention.

The control cable terminal fixture A shown in FIGS. 1 and 2 comprises a cable case 1 and a snap ring 10. As shown in FIG. 2, the cable case 1 includes a cylindrical body portion 2, an inclined portion 4 that extends in a tapered shape from an end portion of the body portion 2, and a side wall 7 a that extends vertically from the inclined portion 4 in the axial direction. It is composed of an annular groove 3 provided through the flange and a flange 6 provided through a step portion 5 adjacent to the annular groove 3. As in the conventional device shown in FIG. 8, a control cable 125 is inserted into the cable case 1 through the opening 8 of the body portion 2, and the distal end is controlled by a tubular fixing member 121 mounted in the cable case 1. The end of the outer casing 120 of the cable is caulked and locked to the cable case 1. Also, the rod 123
Is slidably attached from the opening 9 of the flange 6 through a tubular slide assisting tool 122 whose tip is attached in the cable case 1. The tubular fixing tool 121 and the tubular sliding aid 122 are connected in the cable case 1, and the rod 123 and the control cable 1 are connected.
Twenty-five inner cables 124 are connected in the cable case 1 to operate integrally. Since a large force is applied to the cable case 1 when the control cable 125 is operated, a material having high strength is required, and a metal such as iron is preferable.

As shown in FIG. 4, the snap ring 10
Is a substantially U-shaped holding portion 11, flanges 12a and 12b provided in an arc shape so as to project inward in the radial direction at the axially rear end (lower end) of the holding portion 11, and the holding thereof. The locking tool 13 is provided so as to project from an end (upper end) on the front side in the axial direction of the portion 11 and project radially inward. The substantially U-shaped holding portion 11 includes a semicircular portion 17, linear portions 18 extending parallel to each other from both end portions of the semicircular portion 17, and both end portions 16 bent inward from the end portions of the linear portions 18, respectively. Become.

The snap ring 10 is fitted so as to cover the flange 6 of the cable case 1 by the holding portion 11, the flanges 12a and 12b and the locking tool 13 (see FIGS. 1 and 2). Therefore, when a force is applied to the cable case 1 to the rear side in the axial direction, the cable case 1 has the flange 12
It is locked by a and 12b, and is locked by the locking tool 13 when a force is applied to the front side in the axial direction. Thereby, the cable case 1 can be fixed to the snap ring 10 so as not to move in the axial direction. These flanges 12a,
12b may be a plurality of protrusions provided in an arc shape as long as it can lock one flange 6 of the cable case. Further, the locking tools 13 may be plural or arcuate flanges as long as they can lock the flange 6 of the cable case 1.

The inner diameter of the semicircular portion 17 of the substantially U-shaped holding portion 11 is substantially the same as the outer diameter of the flange 6 of the cable case 1. Further, the flanges 12a and 12b and the locking tool 1
The axial length X between the cable case 3 and the flange 3 is substantially the same as the width of the flange 6 of the cable case 1. Furthermore, flange 1
The length L protruding radially inward of 2a, 12b
Is substantially the same as the length M between the flange 6 and the step portion 5 of the cable case 1. Therefore, rattling between the snap ring 10 and the cable case 1 can be reduced. Furthermore, since both ends 16 of the holding portion 11 are bent inward in the radial direction, the snap ring 1
When 0 is fitted into the cable case 1, both ends 16 of the cable case 1 lock the cable case 1 at the opening of the holding portion 11 and prevent the cable case 1 from falling off the snap ring 10.

Further, the snap ring 10 projects from both ends 16 of the holding portion 11 to the lower end of the holding portion 11 and extends inwardly in parallel with the straight portion 18 and extends inward.
Have. When the snap ring 10 is fitted into the cable case 1, the hooks 15 a and 15 b are located in the annular groove 3 of the cable case 1. The width Y of the hooks 15a and 15b is substantially the same as the width V of the annular groove 3.

When the snap ring 10 is fitted into the cable case 1, the hooks 15a and 15b first come into contact with the inclined portion 4. Then, the hooks 15a and 15b are guided to the annular groove 3 by sliding the inclined portion 4. As a result, the entire snap ring 10 has its hooks 15a, 1
It is guided to the cable case 1 by 5b and fitted into the cable case 1. After fitting, hooks 15a, 15b
Is in contact with both side walls 7a and 7b of the annular groove 3, so that rattling between the snap ring 10 and the cable case 1 can be reduced. The ends of the hooks 15a, 15b do not have to contact the bottom of the annular groove 3, and the side surfaces of the ends of the hooks 15a, 15b may contact the side wall 7 of the annular groove 3.

Further, the snap ring 10 projects from the lower ends of the both ends 16 in the axial direction, has edges 19a and 19b parallel to the both ends 16 and extends outward from the both ends 16 in the radial direction at a certain angle. Has a pair of tabs 14a, 14b arranged in the same manner. That is, the edges 19a, 1
Since 9b projects to the lower ends of both ends 16 in the axial direction, the edges 19a and 19b intersect the plane where the bracket is located. Therefore, by pinching these tabs 14a and 14b inside the snap ring opening, the edge 19
The a and 19b can be fitted into the recesses 26 and 27 of the bracket 20 (see FIG. 6). The edges 19a and 19b have a triangular shape, which will be described later. However, there is no particular limitation as long as it can be locked to the bracket.

The axial length Z of the tabs 14a and 14b is longer than the axial length W of the holding portion 11 and protrudes from the lower end of the holding portion 11. The length Z is substantially the same as the distance D between the end surface of the cable case 1 on the flange 6 side and the wall 7a (see FIG. 3). As a result, it is possible to connect the holding portion 11 and the hooks 15a and 15b that are on different axial planes, and further, when a force is applied to the terminal fixing tool A in the axial direction, an effect as a bone rib can be obtained. it can.

As described above, the fitting of the cable case 1 and the snap ring 10 can be easily performed before connecting to the bracket without requiring much force. Further, since this snap ring 10 is snap-fitted and locked to the cable case 1, any material having a spring property may be used, and the material such as metal or synthetic resin is not particularly limited.

The terminal fixing device of the present invention comprises the terminal fixing device of the present invention and a bracket. FIG. 6 shows an embodiment of the terminal fixing device of the present invention using the terminal fixing tool A, and FIG. 5 shows an embodiment of the bracket used in FIG. The bracket 20 is a plate having a U-shaped slot 21. The slot 21 has an opening 22 that is tapered.
And side surfaces 24, 25 facing each other radially inward,
The edge 19a of the snap ring 10 on each side,
Triangular recesses 26 and 27 for accommodating and locking 19b,
And an arcuate bottom portion 23.

As shown in FIG. 6, in the terminal fixing device B, the annular groove 3 of the cable case 1 of the terminal fixing tool A is inserted into the bracket 2
It can be obtained by fitting it into the bottom portion 23 of 0 so as to close it. The opening 22 of the slot 21 is tapered open and, as mentioned above, the edge 1 of the snap ring.
Since 9a and 19b have a triangular shape, when the terminal fixing tool is fitted into the bracket, the tabs 14a and 14 of the snap ring are attached.
Even if b is not pinched inside the opening of the snap ring, the edges 19a and 19b can be slip-fitted into the opening 22 of the slot 21 by a snap fit. The edges 19a, 1
9b are respectively locked in the recesses 26 and 27 of the bracket 20 so as not to move radially outward, and the ends 16 of the holding portion 11 are also locked so as not to move radially outward. The shapes of the recesses 26, 27 and the edges 19a, 19b are substantially the same. This can reduce rattling. That is, the shape is not particularly limited, and if the edges 19a and 19b are rectangular, the recesses 26 and 27 are also rectangular.

The inner diameter of the arcuate bottom portion 23 is substantially the same as the outer diameter of the annular groove 3 of the cable case 1. Therefore, the terminal fixture A is directly brought into contact with the bracket 20 and can be firmly locked to the bracket 20 so as not to move in the radial direction. Also, the bracket 20
Is substantially the same as the width V of the annular groove 3 of the cable case 1. Therefore, even if a force is applied to the terminal fixture A in either the axial direction or the axial direction, the sidewall 7 of the cable case 1
And the bracket 20 mesh with each other firmly, and the terminal fixture A can be fixed so as not to move in the axial direction from the bracket 20.

Further, the edges 19a and 19b of the snap ring 10 and the hooks 15a and 15b are provided on the same plane as the bracket 20. When the force on the opening side of the slot 21 is applied to the terminal fixture A, the hooks 15a and 15b are pushed by the cable case 1,
The edges 19a and 19b are brought into contact with the recesses, and a force is applied to the snap ring 10 in the opening direction, so that the snap ring 10
Restrain the escape of. The cable case 1 is locked by the hooks 15a and 15b and both ends 16. At that time, the edges 19a and 19b and the hook 15
Since a and 15b are on the same plane, they are not twisted and force transmission is smooth. Furthermore, the hook 15
When a force as described above is applied, a and 15b exert a large force on the tab portions 35a and 35b, and also act as a reinforcing rib in the radial direction.

The bracket 20 is fitted in the annular groove 3 of the cable case 1, and the recesses 26 and 27 are located on the same plane as the bottom of the annular groove 3. As mentioned above, edge 1
9a and 19b can be fitted in the recesses 26 and 27, respectively. The length Y of the edges 19a and 19b is substantially the same as the width V of the annular groove 3. That is, the tabs 14a, 14
The terminal fixture A can be easily removed from the bracket 20 by pinching b inward in the opening direction.

When the terminal fixture A is fitted into the bracket 20, the edges 19a and 19b are fixed so as not to move outward from the openings. That is, as long as the terminal fixture A is fitted in the bracket 20, both ends 16 of the holding portion 11 are
Does not open outwards from the opening so that the cable case 1 does not fall out of the snap ring 10 and thus of the bracket 20.

The hook of the snap ring may be provided so that the end of the snap fastener engages with the slot of the bracket when the terminal fixing device is fitted to the bracket. In this case, the terminal fixture and the bracket can be fitted more firmly. Further, the end portion of the hook may be formed in an arc shape along the annular groove of the cable case. Thereby, the cable case and the snap ring can be fitted more stably. Further, although these hooks are configured so as to be located in the annular groove of the cable case, they may be provided on the inclined portion or the trunk of the cable case. You don't have to.

In this embodiment, the flange of the cable case is provided at the end of the body of the cable case.
It may be provided so as to be sandwiched between the body portions of the cable case, and the same operation as described above can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a control cable terminal fixture of the present invention.

2a is a plan view of the terminal fixture shown in FIG. 1, and FIG. 2b is a side view of the terminal fixture shown in FIG.

3a is a plan view of the cable case shown in FIG. 1, and FIG. 3b is a side view of the cable case shown in FIG.

4a is a plan view of the snap ring shown in FIG. 1, and FIG. 4b is a side view of the snap ring shown in FIG.

5a is a plan view of the bracket used in the present invention, and FIG. 5b is a side view of the bracket used in the present invention.

FIG. 6a is a plan view of a terminal fixing device for a control cable that is an embodiment of the present invention, and FIG. 6b is a side view of a terminal fixing device for a control cable that is an embodiment of the present invention.

FIG. 7 shows a conventionally known terminal fixing device for a control cable.

FIG. 8 shows another conventionally known control cable terminal fixing device.

[Explanation of symbols]

A Control cable terminal fixture B Control cable terminal fixing device D length L length V length W length X length Y length Z length 1 cable case 2 torso 3 annular groove 4 slope 5 steps 5a recess 6 flange 7 Side wall 7a side wall 7b Side wall 8 openings 9 openings 10 snap ring 11 holding part 12a flange 12b flange 13 Locking tool 14a tab 14b tab 15 Hook 15a Hook 15b Hook 16 edge 17 Semicircle part 18 Straight part 19a edge 19b edge 20 bracket 21 slots 22 opening 23 bottom 24 sides 25 sides 26 recess 27 recess 100 Control cable terminal fixing device 101 control cable 102 cable case 103 groove 104a flange 104b flange 105 bracket 106 clips 107 mounting holes 110 Terminal fixing device for control cable 111 cable case 112 groove 113 spring pieces 114 holding part 115 edge 116 Locking tool 117 bracket 118 mounting holes 119 recess 120 outer casing 121 Cylindrical fixture 122 Cylindrical sliding aid 123 rod 124 Inner cable 125 control cable

Claims (4)

[Claims] 1. A terminal fixing tool for fixing a terminal of a control cable to a bracket so as not to be displaced in the axial direction thereof. (A) A cylindrical body portion and an outer peripheral surface of the body portion. A cable case having an annular groove and a flange provided adjacent to the annular groove, and (b) so as not to move in the axial direction by being retained by being covered by snap fitting on the outer periphery of the flange, and A control cable including a substantially U-shaped holding portion configured so as not to come off in the radial direction, and a snap ring including a pair of edges provided at both ends of the holding portion and engaged with a bracket. Terminal fixing tool. 2. The terminal fixing device for a control cable according to claim 1, wherein the snap ring has a hooking device that extends inward from axially offset positions of both ends of the substantially U-shaped holding portion. 3. The terminal fixture for a control cable according to claim 1, wherein the snap ring is made of synthetic resin. 4. The control cable terminal fixing device according to any one of claims 1 to 3, and (c) a bracket having a U-shaped slot, the bracket being provided on opposite side surfaces of the slot. A terminal fixing device for a control cable, which has a concave portion in which the edge is received and held by snap fitting, and an arc-shaped bottom portion fitted in the annular groove.