JPH03592Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Field of Industrial Application] This invention relates to a structure for fixing an outer cable end on the shift lever side of a control cable interposed between the shift lever and the transmission to transmit shift lever operation to the transmission.

[Prior art and its problems]

In FR vehicles, this transmission is often located under or near the floor shift lever, so the transmission can be controlled almost directly by the floor shift lever. However, in vehicles equipped with a transversely mounted engine, such as front-wheel drive vehicles, the shift lever and the transmission are separated by a distance, and the transmission cannot be directly controlled by the shift lever. In such cases, it is necessary to install a driving transmission means to transmit the shift lever operation to the transmission.
As a means of transmitting this motion, a double cable system in which an inner cable is passed through an outer cable is used because it is light in weight, has a simple mechanism, and can freely change the direction of motion. control cables tend to be adopted. When this control cable is connected to the shift lever side, the inner cable is connected to the shift lever disposed within the shift lever housing, and the outer cable is fixed to a fixing member such as the shift lever housing. In this way, the control cable must be routed outside the floor panel and then passed through the shift lever housing to connect the inner cable to the shift lever inside. It is necessary to install seals to prevent dirt, mud, and noise from entering the passenger compartment. Conventionally, the end fixing structure of a control cable with such a seal is the one shown in Japanese Utility Model Application Publication No. 57-115421, which uses a collar of an end member attached to the end of the outer cable. In general, a space was provided between the inner cable and the fixing member through which the inner cable was inserted, and a relatively thick elastic seal member was sandwiched in this space. However, in the structure shown in the above publication,
There is a drawback that the elastic sealing member is elastically deformed by the axial compressive force applied to the outer cable when the inner cable is pulled, and the outer cable end moves in the axial direction. In such a double cable, the axial motion applied to one end of the inner cable is transmitted to the other end only when both ends of the outer cable are fixed, so it is unlikely that the outer cable end moved as described above. , the motion given to the end of the inner cable by operating the shift lever is not directly transmitted to the transmission, resulting in stroke loss. This means that
This means that the gear change operation of the transmission cannot be carried out accurately, and the shift lever operation feels less rigid.

[Purpose of invention]

This idea was devised under the above circumstances, and its purpose was to maintain a high degree of sealing performance at the penetration part into the shift lever housing, and to connect the outer cable end to the shift lever housing. To provide an outer cable terminal fixing structure for a control cable that eliminates the above-mentioned stroke cross in the fixing state, has a simple structure, and improves assembly workability.

[Means to achieve the purpose]

In order to achieve the above object, in the present invention, the shift lever is inserted through a hole drilled in the shift lever housing.
and a cable end having a collar portion that can come into contact with the outer surface of the shift lever housing, a small diameter shaft portion that projects into the shift lever housing from the hole, and a large diameter stopper portion formed at the tip of the small diameter shaft portion. is attached to the end of the outer cable, and by engaging the spring clip with the large diameter stopper part, the cable end is pulled inward of the shift lever housing, and the collar part is elastically brought into contact with the outer surface of the shift lever housing. Along with letting
An elastic seal member is interposed in a compressed state in a space formed by making an annular recess in a part of the contact surface of the flange.

[Actions and effects of the idea]

The control cable outer cable terminal fixing structure of the present invention employs the above-mentioned means, and as a result, has the following functions and effects. First, the cable end attached to the end of the outer cable has its flange elastically abutted against the outer surface of the shift lever housing, so that the end of the outer cable and the shift lever housing as a fixing member are connected to each other. There is no relative movement in the axial direction between the two, and therefore there is no stroke cross of the inner cable, allowing accurate gear shifting operations, and the operation feels rigid, just like an FR vehicle. You can get a feeling of operation as if the shift lever and transmission were directly connected. Secondly, the sealing of the penetration part of the small diameter shaft part of the cable end into the hole of the shift lever housing is done in the space formed by recessing a part of the part of the collar part which contacts the outer surface of the shift lever housing into an annular shape. Since this is done using the interposed elastic seal member in the compressed state, its sealing performance is high. In other words, since the flange of the cable end is in elastic contact with the outer surface of the shift lever housing,
The gap between the flange and the outer surface of the shift lever housing is extremely small, and the above-mentioned sealing member is interposed, so in addition to the sealing effect of the sealing member itself, the recess-like shape formed on the flange This is because a labyrinth effect is expected in the space or the minute gap between the flange and the outer surface of the housing. Also,
Even if the end of the cable end tries to move away from the outer surface of the shift lever housing against the elasticity of the spring clip due to the operational reaction force against the shift lever, or even if it actually moves away slightly, the elastic sealing member will be compressed as described above. Since it is interposed in the state, the sealing performance of the elastic seal member is still ensured until it returns to its natural state. Also, a high degree of sealing performance is maintained between the cable end and the shift lever housing. Thirdly, the fixation of the control cable end is
All you have to do is attach the sealing member to the annular space formed in the flange of the cable end, insert the tip of the sealing member into the hole in the shift lever housing, and engage the spring clip with the large diameter stopper that protrudes into the housing. , its assembly is extremely simple and requires no special tools.

[Explanation of Examples]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIGS. 1 and 2 show an example of a control cable outer cable terminal fixing structure according to the present invention. As shown in FIG. 1, a shift lever 1 installed in a floor tunnel connects a transmission 2 in an engine room to a control cable 5 in the form of a double cable, with an inner cable 4 inserted into an outer cable 3. are connected. Details of the connecting portion of the control cable 5 on the shift lever side are shown in FIG. The shift lever 1 is mounted on the bottom surface 7a of the shift lever housing 7 fixed to the back surface of the floor panel 6.
The base of the shift lever housing 7 is pivotally connected, and the end of the inner cable 4, which is drawn into the shift lever housing 7 from the front, is fixed to the intermediate portion thereof. On the other hand, the outer cable 3 of the control cable 5
The end portion of the shift lever housing 7 is fixed to the shift lever housing 7 as described below. A cable end 12 having a flange 9 that can come into contact with the outer surface 7b of the shift lever housing 7, a small diameter shaft 10 extending from the flange 9 toward the tip, and a large diameter stopper 11 formed at the tip. is fixed to the end of the outer cable 3. The stopper portion 11 has a larger diameter than the small diameter shaft portion 10, but can pass through a hole 13 formed in the shift lever housing 7. Of course, this cable end 12 has an inner cable insertion hole 14 that penetrates in the axial direction, and the inner cable 4
is drawn into the shift lever housing 7 through the insertion hole 14. This cable end 12 has its small diameter shaft part 10 or large diameter stopper part 11 passed inward through the hole 13 of the shift lever housing 7, and the collar part 9 is brought into contact with the outer surface of the housing 7, and the large diameter stopper part By engaging the spring clip 1 with the spring clip 11, the flange 9 is fixed so as to be elastically pressed against the outer surface of the housing 7, with a constant tendency to pull the housing 7 side. In the illustrated example, a large-diameter fitting portion 1 is formed in a portion adjacent to the collar portion 9, and this fits into the hole 13 of the housing 7 to connect the cable end 1.
2 to prevent it from shifting in the direction perpendicular to the axis. Furthermore, an annular recessed space 17 is formed on the abutting surface of the flange 9 against the outer surface of the housing,
By fitting an O-ring 18 as a sealing member into this, water or the like is prevented from entering the vehicle interior through the gap between the flange 9 and the outer surface of the housing or through the hole 13 in the housing 7. In this example, a commercially available O-ring can be used, which is advantageous in terms of cost. In this way, in the present invention, since the flange part 9 of the cable end 12 is elastically pressed against the outer surface of the housing 7, a certain degree of sealing performance can be expected by itself, and in addition, the above-mentioned O-ring can be used as an intervening sealing member. Therefore, the sealing performance of the penetration portion of the control cable 5 into the housing 7 is maintained at an extremely high level. In this case, 0 ring 18
Due to its application, it is naturally loaded into the space 17 in a compressed state in the axial direction of the cable end between it and the outer surface of the housing.
In addition, since the cable end 12 forming the end of the outer cable 3 of the control cable 5 is in direct contact with the outer surface of the shift lever housing 7 as a fixed member, the shift lever operation feels rigid, unlike the conventional one. There is no stroke cross and reliable gear shifting operation is possible. It goes without saying that the scope of the present invention is not limited to the embodiments described above. That is, in the example shown in FIG. 2 as a configuration of the seal portion, the flange portion 9
An annular space 17 is formed at a portion radially inward from the periphery of the flange 9. As shown in FIG. It may also be provided with a rubber seam 18' which is vulcanized.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of a speed change operation system to which the present invention is applied, Fig. 2 is an enlarged sectional view of the main part of one embodiment of the invention, and Fig. 3 is an enlarged sectional view of the main part of another embodiment of the invention. It is. 1...Shift lever, 2...Transmission, 3...Outer cable, 5...Control cable,
7...Shift lever housing, 9...Brim part, 1
0...Small diameter shaft part, 11...Large diameter stopper part, 12
... Cable end, 13 ... Hole, 15 ... Spring clip, 17 ... Annular space, 18 ... Seal member.

Claims (1)

[Scope of Claim for Utility Model Registration] A shift lever housing, which is a structure for fixing an outer cable terminal on the shift lever side of a control cable interposed between the shift lever and the transmission to transmit shift lever operation to the transmission. a flange that can be passed through a hole drilled in the hole and can come into contact with the outer surface of the shift lever housing; a small diameter shaft that projects into the shift lever housing from the hole; and a flange that is formed at the tip of the small diameter shaft. A cable end having a large-diameter stopper portion is attached to the end of the outer cable, and a spring clip is engaged with the large-diameter stopper portion to pull the cable end inward of the shift lever housing. elastically contacts the outer surface of the shift lever housing, and an elastic seal member is interposed in a compressed state in the space formed by recessing a part of the abutment surface of the flange into an annular shape. A control cable outer cable terminal fixing structure.