JPS6232110Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a remote control mechanism for a gear transmission mainly used in horizontally mounted front-wheel drive vehicles.

Due to space constraints, this type of remote control mechanism often uses a push-pull cable to transmit operating force. However, conventionally, two push-pull cables (shift push-pull cable and select push-pull cable) were used.
It is necessary to convert the shift and select operations of the shift lever into axial operations of each push-pull cable, transmit them to the transmission, and then return them to the rotation and axial operations of the shift and select lever shaft of the transmission. It was hot.

In this way, the conventional push-pull cable type remote control mechanism requires an axial operation conversion mechanism at each end of the two push-pull cables, and in particular, the select operation (or shift operation) requires an axial direction operation conversion mechanism to change the operation direction. The mechanism was complicated, as it required an extra bell crank.

In addition, if a mechanism for applying select return to the shift lever is provided on the transmission side, the select return force will be transmitted to the shift lever through the complex select mechanism as described above, allowing for accurate return position and sense of moderation of operation. There was a problem that it was difficult to obtain.

In view of these conventional circumstances and the current situation where push-pull cables are being improved, the present invention is a simple system that directly transmits shift and select operations of the shift lever to the shift and select lever shaft via a single cable. Its purpose is to provide a remote control mechanism.

Hereinafter, the configuration of the present invention will be explained based on embodiments shown in the drawings. In Fig. 1, the remote control mechanism 1
0 is shift lever retainer 11, shift lever 1
5, a support arm 19 and a push-pull torsion cable 20 are provided.

The shift lever retainer 11 has at one end a support arm support section 12 with a pair of parallel walls facing each other on its upper surface, and at the other end a cable support section 13 consisting of walls parallel to the support arm support section 12. and is fixed to the body 14 by bolts 23.

The shift lever 15 has a shift lever knob 18 at its upper end, and a supported portion 16 at its middle portion. The supported portion 16 has a cylindrical shape with an axis perpendicular to the longitudinal direction of the shift lever 15, and a shifting lever portion 17 extends downward from its outer periphery. This shifting lever section 17
The tip of the rod is a disc-shaped rod locking part 22 with a pin hole in the center.

The support arm 19 has a cylindrical boss 2 at the lower end.
4, which is gently tilted forward, and whose upper end forms a bearing portion 25 having a shaft hole. The boss 24 at the lower end of the support arm 19 is rotatably supported on the support arm support part 12 of the shift lever retainer 11 by a select shaft 26, and the supported part 16 of the shift lever 15 is attached to the bearing part 25 at the upper end. is rotatably supported by a shift shaft 27. Note that the select shaft 26 and the shift shaft 27 are arranged in a positional relationship such that their axes are perpendicular to each other.

The push-pull torsion cable 20 has a structure in which an inner cable rod 21 is inserted into an outer cable 29, and this inner cable rod 21 is capable of transmitting not only push and pull force but also rotational force around the axis. It is. The push-pull torsion cable 20 has an end portion of an outer cable 29 fixed to the cable support portion 13 of the shift lever retainer 11 by a clip 28 on the body 14 side. Further, a clevis 31 is integrally connected to the tip of the inner cable rod 21, and this clevis 31 is connected to the rod locking portion 22 of the shifting lever portion 17 by a pin 32.

What is important here is that the aforementioned select axis 26,
The positions are determined so that the axis of the inner cable rod 21 of the push-pull torsion cable 20 and the center of the clevis pin insertion hole of the rod locking part 22 are aligned on a straight line.

On the other hand, push pull torsion cable 20
The other end of the outer cable 29 is led to the transmission 4 side as shown in FIG. (not shown), and the inner cable rod 2
1 is connected to the outer end of the shift and select shaft 5 by a clevis 35 and a clevis pin 36.

Next, the remote control mechanism 10 configured as described above will be explained.
We will discuss the effects of The shift lever 15 can be operated around a shift shaft 27 and around a select shaft 26 with respect to a shift lever retainer 11 fixed to the body 14, and corresponds to a shift operation and a select operation, respectively. When the shift lever 15 is shifted, the shifting lever 17 also operates around the shift shaft 27, and the axial movement is transmitted to the inner cable rod 21 via the clevis pin 32 and clevis 31. This motion is transmitted to the transmission 4 through the inner cable rod 21, clevis 35, and clevis pin 36 as an axial motion (shift motion) of the shift and select lever shaft 5.

Further, when the shift lever 15 is selected, the shift lever 15 rotates together with the support arm 19 around the select shaft 26. At this time,
The select shaft 26, the center of the clevis pin insertion hole of the rod locking part 22, and the inner cable rod 21
are on the same straight line, this selection operation is transmitted as a pure rotational movement of the inner cable rod 21. This rotational movement of the inner cable rod 21 is transmitted to the transmission 4 as a rotational movement around the axis of the shift and select lever shaft 5 (selecting movement).

Generally, the select operation force is smaller than the shift operation force, but according to the configuration of this embodiment, the select operation, which has a smaller operation force, is transmitted as a rotational movement around the axis of the push-pull torsion cable 20. This compensates for the cable's low torsional force transmission ability and increases the reliability of operation. Furthermore, since it has a very simple structure, it is extremely easy to make the select return function provided on the transmission 4 side directly act on the support arm 19, which allows for precise return position and select operation. It is easy to get a good sense of moderation.

As described above, the present invention includes a select shaft that rotatably supports a support arm with respect to a support arm support portion of a shift lever retainer, and a shift shaft that rotatably supports the support arm at the upper end of the support arm. By arranging the lower end of the shifting lever of the shift lever and the shaft center of the inner cable rod of the push-pull/torsion cable connected to the lower end of this shifting lever part in a straight line, the shifting operation of the shift lever is facilitated. In addition, the inner cable rod of the push-pull torsion cable can be smoothly rotated or pushed or pulled without applying excessive twisting force to the inner cable rod during the selection operation. Therefore, shift operations and select operations can be transmitted to the transmission side through a single push-pull torsion cable, eliminating the need for a mechanism to change the direction of the shift and select operations of this cable on the transmission side. The configuration of the remote control mechanism is extremely simplified, and the return position during the selection operation is also accurate, providing a good sense of moderation.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the configuration on the shift lever side of this embodiment, and FIG. 2 is a perspective view similarly showing the configuration on the transmission side. 11...Shift lever retainer, 12...Support arm support part, 13...Cable support part, 1
5...Shift lever, 16...Supported part, 17...
...Shifting lever section, 19...Support arm, 20...Push-pull torsion cable, 21...Inner cable rod, 26...
Select axis, 27...Shift axis.

Claims (1)

[Scope of utility model registration request] A shift lever retainer is fixed to the vehicle body and has a support arm support portion and a cable support portion on its upper surface. a supported support arm; and a support arm that is rotatably supported at the upper end of the support arm by a shift shaft whose axis is perpendicular to the axis of the select shaft, and that extends further downward from the shift shaft. a shift lever having a shifting lever portion; and one end fixed to a cable support portion of the shift lever retainer;
An inner cable rod inserted therein is connected to the lower end of the shifting lever part, and a push-pull/torsion cable is capable of transmitting an axial push/pull force and rotational force around the axis of the inner cable rod. A remote control mechanism for a vehicle transmission, characterized in that the select shaft, the lower end of the shifting lever portion, and the axis of the inner cable rod are all arranged in a straight line.