JP2009236197A - Support structure of control cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a support structure of a control cable, preventing contact noise caused by vibration. <P>SOLUTION: This support structure of the control cable includes first and second support bodies interposed between the control cable and a vehicle body, the first support body includes a straight pipe part through which the control cable is inserted, and a protruding part provided on at least one portion of the straight pipe part, and the second support body includes a holding part having a first space part where the first support body is detachably inserted, and a second space part communicated with the first space part and undetachably supporting the first support body. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a support structure for a control cable, and more particularly to a support structure for a parking brake cable.

  Conventionally, in order to prevent the vehicle from moving when the vehicle is parked, the vehicle is provided with a parking brake device. The control of the parking brake device is routed between an operation lever L provided in the vehicle body and a brake device B for the rear wheel, and between the operation lever L and the brake device B along the route. This is performed by a control cable C (hereinafter referred to as a parking brake cable) for a parking brake device in which at least one place is supported on the vehicle body (see FIG. 7A).

In a general vehicle, when traveling on a road surface, the wheels vibrate due to unevenness on the road surface. Since this vibration is transmitted to the vehicle body via the wheels and deteriorates the ride comfort of the occupant, the wheels and the vehicle body are connected via a suspension device constituted by a coil spring, a link, etc. The vibrations of the wheels are prevented from being transmitted to the vehicle body by absorbing them.

  Since the parking brake cable has one end connected to the operation lever L in the vehicle body and the other end connected to the rear wheel brake device B as described above, only the side connected to the rear wheel brake device B is used. Will vibrate with the wheels. Therefore, the parking brake cable needs to be supported by the vehicle body in a structure that can withstand this vibration, and is supported so as to allow a change in the routing path of the parking brake cable between the vehicle body and the brake device B due to the vibration. It is necessary to

  As shown in FIG. 7 (b), the device described in Patent Document 1 has a synthetic resin bearing Be fitted on the outer periphery of a parking brake cable C (parking brake cable), and the synthetic resin bearing Be is attached to a rubber bush Bu. It is characterized in that it is supported by the vehicle body.

  As shown in FIG. 8, the device described in Patent Document 2 is provided with a hole through which a cable C (parking brake cable) is inserted in the center and a pulley P having a groove formed on the outer periphery, and the hole of the pulley P is provided. A parking brake cable C is inserted through the groove and a part of the vehicle body is coupled by a coil spring CS.

  However, although the device described in Patent Document 1 has high durability, there is a problem that a change in the routing path of the parking brake cable cannot be allowed. In the device described in Patent Document 2, the wiring of the parking brake cable is problematic. Although the cable path can be changed, there is a problem that durability is low because the parking brake cable is supported only by the holding force of the coil spring CS.

  In view of such a problem, as shown in FIG. 9a, as a parking brake cable support structure, a bracket 102 for fixing to a vehicle body is wound around and a parking brake cable is attached to a protector 101 having a long hole 101a. There is a support structure 100 that is inserted and supported. In this support structure 100, in order to prevent wear due to sliding of the parking brake cable and the protector 101, a metal clamp member 105 is provided on the outer casing of the parking brake cable as shown in FIG. In order to make it easier to insert the outer casing of the parking brake cable and to make it difficult for the protector 101 to move from a predetermined position, the both ends are provided with flange portions 105a having a larger outer diameter than the central portion 105b. The support structure 100 has a dimension H between the inner wall portions 101b of the long hole 101a of the protector 101 so that the flange portion 105a of the clamp member 105 can be easily inserted into the long hole 101a of the protector 101. It is necessary to make it larger than the outer diameter of 105a.

  However, since this support structure 100 has the dimension H of the long hole 101a of the protector 101 larger than the outer diameter of the central part 105b of the clamp member 105, the support structure 100 is separated from the central part 105b of the clamp member 105 when the parking brake cable vibrates. There is a problem that a sound is generated due to repeated contact / non-contact of the inner wall portion 101b of the protector 101.

Japanese Utility Model Publication No. 59-195048 Japanese Utility Model Publication No. 1-96589

  Therefore, in view of such circumstances, the present invention is durable, can securely hold the control cable, can tolerate changes in the routing route, can prevent the generation of contact sound due to vibration, etc., and can be easily assembled. An object is to provide a cable support structure.

  The control cable support structure according to the present invention includes first and second supports interposed between the control cable and the vehicle body, and the straight pipe portion through which the first support passes the control cable and the straight pipe And a first space portion through which the first support body is detachably inserted, the first space portion being in communication with the first space portion, and the first space portion. And a holding portion provided with a second space portion that supports the support body so that it cannot be inserted and removed.

  In addition, it is preferable that the first space portion is provided on both sides of the second space portion.

  Moreover, it is preferable that the said holding | maintenance part has a convex part provided in convex shape toward the 2nd space part.

  Moreover, it is preferable that the said convex part has a gradient that the center part of the insertion direction of a 1st support body becomes high.

  Moreover, it is preferable that the said convex part is provided in the both sides of the 2nd support body on both sides of the 2nd space part.

  Moreover, it is preferable that the plane part is formed in the part by which the said 1st support body of the said holding | maintenance part is penetrated.

  According to the present invention, the holding portion provided on the second support body can reliably hold the control cable and can prevent the generation of contact sound due to vibration or the like. In addition, since the holding portion has the convex portion, it is possible to allow a change in the routing route of the control cable while preventing the generation of sound. Moreover, it is easy to assemble the first support to the second support by the first space formed in the second support.

  Hereinafter, an embodiment of a control cable support structure according to the present invention will be described with reference to the drawings.

  FIG. 1A is a view for explaining a control cable support structure according to the present invention. FIG. 1B is a view of FIG. 1A viewed from the U direction, and FIG. ) Is a view for explaining a second support used in the control cable support structure of the present invention, and FIG. 2 (b) is a WW sectional view in FIG. 2 (a). 3 (a) is a view for explaining a first support used in the control cable support structure of the present invention, and FIG. 3 (b) is an XX cross-sectional view in FIG. 3 (a). FIG. 4 is a view for explaining the control cable support structure of the present invention when the second support body swings left and right, and FIG. 5 (a) shows the control cable support structure of the present invention. It is a figure which shows one Embodiment, FIG.5 (b) is a YY sectional drawing in Fig.5 (a). FIG. 6 is a view showing an embodiment of a control cable support structure of the present invention, FIG. 7 (a) is a view showing an entire parking brake device, and FIG. 6 (b) is a conventional control cable. FIG. 8 is a view showing a conventional control cable support structure, FIG. 9a is a view showing a conventional control cable support structure, and FIG. 9b is a view showing FIG. 9a. FIG. 9C is a diagram showing a conventional control cable support structure, and FIG. 9D is a diagram when FIG. 9C is viewed from the V direction.

  Referring to FIGS. 1 to 3, a control cable support structure 1 according to the present invention is a clamp member 2 and a second support that are first supports interposed between a control cable C and a vehicle body F. It consists of protector 3.

  FIG. 1 shows a state in which a control cable support structure 1 according to the present invention is assembled to a vehicle body F, and a straight pipe portion 22 of a clamp member 2 is disposed obliquely in a second space portion 32 of a protector 3 to be described later. Is shown.

  As shown in FIG. 3A, the clamp member 2 includes a cylindrical straight pipe portion 22 and flange portions 21 that are protrusions formed at both ends of the straight pipe portion 22 in the longitudinal direction. In addition, although the flange part 21 which is a protrusion part is formed in the both ends of the straight pipe part 22 in Fig.3 (a), what is necessary is just to be provided in at least one place of the straight pipe part 22. FIG. In FIGS. 3A and 3B, the straight pipe portion 22 has a cylindrical shape. However, the shape is not particularly limited as long as the control cable C can be inserted, and may have an elliptical cross section or a prism. I do not care. The flange portion 21 is for making it difficult for the clamp member 2 to move from a predetermined position range. The shape of the flange portion 21 is not particularly limited, and in order to allow movement of the control cable C in the axial direction, The distance D6 between the portions 21 is larger than the dimension D5 of the protector 3 (D6> D5). Moreover, in this Embodiment, it combines with the enlarged diameter part formed in order to make it easy to insert the control cable C into the clamp member 2. FIG. The material of the clamp member 2 is preferably made of metal from the viewpoint of strength, but may be a synthetic resin such as polyvinyl chloride (PVC), and is not particularly limited.

  A control cable C including an outer casing C2 that connects the operating lever and the brake device of the rear wheel and an inner cable C1 that slides in the outer casing C2 is inserted into the through hole of the clamp member 2, and is caulked. This is fixed on the outer casing C2.

  The protector 3 has a long hole through which the clamp member 2 is inserted. The long hole communicates with the first space portion 31 through which the clamp member 2 can be inserted and removed, and the clamp member 2. And a second space portion 32 that supports the insertion / removal of the second space portion 32. 1-4, the 2nd space part 32 long along the long axis of a long hole, and the 1st space part 31 arrange | positioned at the both ends of the long axis direction of a long hole are formed. . The material of the protector 3 is preferably a soft synthetic resin from the viewpoint of reducing contact sound, but may be a rubber such as ethylene / propylene / diene copolymer (EPDM), and is not particularly limited. .

  The protector 3 is provided with a first space portion 31 through which the clamp member 2 can be inserted and removed. In the present embodiment, the first space portion 31 is formed in accordance with the shape of the flange portion 21 of the cylindrical clamp member 2, but is not particularly limited as long as the clamp member 2 can be inserted and removed. However, it can be appropriately changed according to the shape of the clamp member 2. For example, the width D1 of the first space portion 31 may be larger than D3 that is the outer diameter of the flange portion 21 of the clamp member 2 (D1> D3), and the protector 3 is made of a material that can be elastically deformed. In this case, since the protector 3 is elastically deformed and the clamp member 2 can be inserted, it may be slightly smaller than D3 (D1 <D3).

  Moreover, the 2nd space part 32 which supports the clamp member 2 so that insertion / extraction is impossible is formed in the protector 3. As shown in FIG. The second space portion 32 communicates with the first space portion 31, and the clamp member 2 into which the flange portion 21 is inserted from the first space portion 31 connects the straight pipe portion 22 from the first space portion 31 to the second space portion 32. By moving to the space portion 32, the second space portion 32 is held by the holding portion 33 provided. In the present embodiment, the relationship between the width D1 of the first space portion 31 and the width D2 of the second space portion 32 is D1> D2, and the width D2 of the second space portion 32 is the direct width of the clamp member 2. It is formed so as to be substantially equal to the outer diameter D4 of the tube portion 22 (D2≈D4). Further, the width D2 of the second space portion 32 is formed smaller than D3 which is the outer diameter of the flange portion 21 of the clamp member 2 (D2 <D3), and the straight tube portion 22 of the clamp member 2 is the second space portion. When arranged at 32, the clamp member 2 is prevented from moving out in the axial direction and coming out of the second space portion 32. Thus, by providing the first space portion 31 and the second space portion 32, the work of assembling and removing the clamp member 2 from the protector 3 is facilitated. Two first spaces 31 may be provided as shown in FIG. 2A, or only one as shown in FIG. 5A.

  In the present embodiment, the holding portion 33 that holds the control cable C has a convex portion 34 that is provided in a convex shape with respect to the protector 3 as shown in FIG. The shape of the convex part 34 is not particularly limited as long as it is convex, but when moving the straight pipe part 22 of the clamp member 2 from the first space part 31 to the second space part 32, it is easy to assemble. It is preferable that the first space portion 31 is gently inclined from the second space portion 32. The convex portion 34 may be integral with the protector 3 or may be a separate body.

  Moreover, the convex part 34 of the holding | maintenance part 33 can also form the gradient that the center part of the insertion direction of the clamp member 2 becomes high. By forming the gradient in this way, the clamp member 2 is held as shown in FIG. 4, so that it is possible to allow the clamp member 2 to swing in the left-right direction with the convex portion 34 as a fulcrum, and the clamp member 2 makes the gap between the protector 3 and the holding portion 33 as small as possible, so that it is possible to prevent the contact noise between the clamp member 2 and the protector 3 from being generated. Further, even if the gap between the clamp member 2 and the holding portion 33 of the protector 3 is made as small as possible, the contact area between the clamp member 2 and the holding portion 33 of the protector 3 can be reduced. It does not hinder the movement of the member 2 (running in the left-right direction, movement of the clamp member 2 in the axial direction or long hole in the long axis direction).

  Moreover, a plane part can also be formed in the part through which the clamp member 2 of the holding part 33 is inserted. This flat portion is formed along the long axis of the long hole, and when the convex portion 34 is formed, it is formed at the top portion of the convex portion 34. Further, like the convex portion 34, the plane portion is formed on both sides of the holding portion 33 so as to be parallel to each other. By forming the flat portion in this way, even if the position of the clamp member 2 with respect to the protector 3 due to variations in the dimensions of the components such as the operation lever, the brake device, and the control cable changes, the clamp is clamped at any position on the flat portion The member 2 can be reliably held.

  Next, another embodiment of the present invention will be described. As shown in FIG. 6, in another embodiment of the present invention, the holding portion 33 formed in the protector 3 has a recess R, and the holding portion 33 is provided by the biasing means S provided in the recess R. Is pressed, the clamp member 2 is held. As the biasing means S provided in the recess R, for example, a known elastic body such as a leaf spring, a coil spring, or rubber can be used.

  Further, a contact body 4 that contacts the clamp member 2 is provided in the recess R, and the clamp member 2 is pressed via the contact body 4 that is biased in the direction of pressing the clamp member 2 by the biasing means S. May be. Moreover, by providing the groove | channel G in the contact body 4, the clamp member 2 is supported along the groove | channel G, and the clamp member 2 can be hold | maintained more firmly. The material of the contact body 4 is not particularly limited, such as a metal or a resin.

(A) is a figure for demonstrating the support structure body of the control cable of this invention, (b) is the figure which looked at Fig.1 (a) from the U direction. (A) is a figure for demonstrating the 2nd support body used for the support structure body of the control cable of this invention, (b) is WW sectional drawing in Fig.2 (a). (A) is a figure for demonstrating the 1st support body used for the support structure body of the control cable of this invention, (b) is XX sectional drawing in Fig.3 (a). It is a figure for demonstrating the support structure body of the control cable of this invention when a 2nd support body swings right and left. (A) is a figure which shows one Embodiment of the support structure body of the control cable of this invention, (b) is YY sectional drawing in Fig.5 (a). It is a figure which shows one Embodiment of the support structure body of the control cable of this invention. (A) is a figure which shows the whole parking brake apparatus, (b) is a figure which shows the support structure body of the conventional control cable. It is a figure which shows the support structure body of the conventional control cable. It is a figure which shows the support structure body of the conventional control cable. It is ZZ sectional drawing in Fig.9 (a). It is a figure which shows the support structure body of the conventional control cable. It is the figure which looked at FIG. 9c from the V direction.

Explanation of symbols

1 Control cable support structure 2 First support body (clamp member)
21 Flange part 22 Straight pipe part 3 2nd support body (protector)
31 1st space part 32 2nd space part 33 Holding part 34 Convex part 4 Contact body B Brake device Be Synthetic resin bearing Bu Rubber bush C Control cable C1 Outer casing C2 Inner cable CS Coil spring F Car body G Groove L Operation lever P Pulley R Recess S Surging member

Claims (6)

Comprising first and second supports interposed between the control cable and the vehicle body;
The first support body includes a straight pipe portion through which the control cable is inserted and a protrusion provided at at least one location of the straight pipe portion,
A first space part through which the second support body is inserted so that the first support body can be inserted and removed, and a second space part that communicates with the first space part and supports the first support body so that it cannot be inserted and removed are provided. And a holding structure for the control cable. The control cable support structure according to claim 1, wherein the first space portion is provided on both sides of the second space portion. The control cable support structure according to claim 1, wherein the holding portion has a convex portion provided in a convex shape toward the second space portion. 4. The control cable support structure according to claim 3, wherein the convex portion has a gradient such that a center portion in the insertion direction of the first support body is high. 5. The control cable support structure according to claim 3, wherein the convex portions are provided on both sides of the second support body with the second space portion interposed therebetween. 6. The control cable support structure according to claim 1, wherein a flat portion is formed in a portion of the holding portion through which the first support is inserted.

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