JPS6411488B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for remotely controlling a transmission for an automobile, and more particularly to an improvement in a mechanism for performing speed change control via a cable connection.

Conventionally, there are two types of mechanisms for transmitting operating force applied to a change lever to an automobile transmission: one using a link connection and the other using a cable connection.

The link-connected type has a structure that makes it easier to obtain a feeling of rigidity (moderate operation feeling) when operating the change lever, but it has the disadvantage that engine vibrations are easily transmitted to the change lever. On the other hand, cable-connected ones
Although it has the advantage of making it difficult to transmit engine vibrations to the change lever and meeting the desire for weight reduction, it has the disadvantage that the cable itself has slack and stretch, and there is some play in the connection points, making it difficult to obtain a sense of rigidity.

Therefore, the main object of the present invention is to provide a slide plate slidably connected to a push/pull cable to a bracket in which a guide groove is formed according to a change pattern, so that the lower end engaging portion of the change lever is slidably provided. The slide plates are moved mutually exclusively in accordance with the movement of the change lever, and the lower end engaging portion of the change lever is brought into contact with the end groove wall of the guide groove of the bracket at the end of the operation stroke of the change lever, To provide a feeling of rigidity to an operator in a remote control mechanism that transmits operating force of a change lever to a transmission through cable connection.

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

FIG. 1 is a schematic vertical cross-sectional view of one embodiment, showing a remote control mechanism for controlling the transmission of a front wheel drive motor vehicle. Reference numeral 1 denotes a change lever, which can be moved back and forth and left and right according to the change pattern shown in FIG. 2 is a coaxial cable consisting of an outer cable 3 and an inner cable 4, both of which can be pushed and pulled. These cables 3 and 4 are
The other end is coupled to a control shaft (shift select shaft) portion coming out of a transmission (not shown). The other end of the outer cable 3 is fixed to the slide plate 6, and the other end of the inner cable 4 is fixed to the slide plate 5. Both of these slide plates 6, 5 are slidably supported by a support piece 32 attached to a housing-shaped bracket 7. Reference numeral 8 denotes a rod-shaped engaging portion that forms the lower end of the change lever 1 and passes through the bracket 7, the slide plate 6, and the slide plate 5. The bottom of the housing-like bracket 7 is cut out with a guide groove S having a substantially square shape as shown in FIG. 3A when viewed from above. This guide groove S
The shape corresponds to the chain pattern shown in FIG. The slide plate 5 has an I-shaped groove SI cut out as shown in FIG. 3b when viewed from above, and the slide plate 6 also has an I-shaped groove SI as shown in FIG. SZ is cut out.
The slide plate 5 has a lateral groove S1 of the guide groove S.
and the groove SI are provided so that the grooves coincide with each other when viewed from above, and the longitudinal grooves S2 and S of the guide groove S
3. S4 and slide plate vertical grooves SZ2, SZ3, SZ4
Slide plate 6 so that the slots match each other.
has been established. There is also a groove SZ3 on the slide plate 6.
A diagonal groove SZ5 is cut out diagonally across the groove SZ2 to reach one end of the groove SZ4 and the other end of the groove SZ4. Note that 10 is a spherical joint, which is supported by a support case 12 via a ball seal 11. Reference numeral 13 indicates a spring, and reference numeral 14 indicates a mount rubber, but the mount rubber 14 is not necessarily required and may be installed depending on the vibration-proofing characteristics. If the mount rubber 14 is not required, the support housing 12 is directly fixed to the vehicle body frame 15. The bracket 7 and the mount rubber 14 are fixed to the vehicle body frame 15 with bolts and nuts via a suitable insulator.

The other end of the coaxial cable 2 in FIG. 1 is connected to a control shaft 20 exiting the transmission, as shown in FIG. In addition, in Figure 4, the outer cable 3 is shown so that the inner cable 4 can be seen clearly.
A part of it is shown. The end of the inner cable 4 is fixed to the tip of the control shaft 20 via a suitable connecting member 21. The inner cable 4 pushes and pulls the control shaft 20 in the axial direction. An arm attachment piece 22 is provided at the end of the outer cable 3 and extends radially from the outer peripheral surface of the outer cable 3, and one end of an arm 23 is attached to the arm attachment piece 22. The arm 23 is provided with a rotation fulcrum 30. The other end of this arm 23 is connected to a pivot 2 disposed substantially at right angles to the arm 23.
A radially extending arm-like piece 26 is rotatably engaged in a cam-like manner with one engagement end 28 of the pivot shaft 27 and fixed to the other engagement end 25 of the pivot shaft 27 and the control 20. and are rotatably engaged in a cam-like manner. The control shaft 20 is a basic part that provides a speed change action to the speed change gears and the like of the transmission.

Move the change lever 1 in the front/rear direction (Y-Y in Figure 2)
When the rod-like engaging portion 8 is guided to the guide groove S2, S3, or S4 of the bracket 7, it comes into contact with the wall of the groove SI of the slide plate 5, and moves the slide plate 5 back and forth. In accordance with this movement, the inner cable 4 is pushed/pulled. This push/pull motion directly moves the control shaft 20 back and forth (in the axial direction) via the connecting member 21. On the other hand, the slide plate 6 has vertical grooves SZ2, SZ3,
Cannot be moved due to SZ4. In this case,
At the end of the stroke when the change lever 1 is operated, the rod-shaped engaging portion 8 comes into contact with the groove wall of the guide groove S of the bracket 7. That is, the rod-shaped engaging portion 8 firmly contacts the groove wall at one end or the other end of the vertical groove S2, S3, or S4. The operator feels a sense of rigidity and feels that the change has been made reliably. This sense of rigidity is obtained when the rod-shaped engaging portion comes into contact with either end wall of the three longitudinal grooves S2, S3, and S4 of the guide groove S, that is, at any one of six locations in total.

Move the change lever 1 in the left/right direction (X-X in Figure 2)
When the rod-shaped engaging portion 8 is guided to the guide groove S1 of the bracket 7 and comes into contact with the groove wall of the diagonal groove SZ5 of the slide plate 6, the slide plate 6 is moved in the front-rear direction (longitudinal direction of the groove SZ2). direction). Following this movement, outer cable 3
is pushed/pulled. This push/pull motion is transmitted to the arm 23 via the arm attachment piece 22, rotates the pivot 27 at the engaging end 28, and rotates the pivot 27 at the engaging end 28.
5, push the arm piece 26 up and down to rotate the control shaft 20. On the other hand, the slide plate 5 is not moved due to the lateral groove SI.

For example, if we specifically explain the case from the neutral position to the next in Fig. 2,
If the front and rear of the cable are referred to as left and right in FIG. 1, the change lever 1 is first swung to the left. The slide plate 6 moves backward and the outer cable 3 is pulled backward. The arm 23 rotates by pushing the pivot 27 downward, thereby causing the control shaft 20 to rotate. When moving to , the slide plate 5 moves backward and the inner cable 4 is pulled backward. The control shaft 20 is driven rearward (to the right in the direction of the cable in FIG. 1). When the change lever 1 reaches the end of its operating stroke, the right groove wall of the vertical groove S2 of the bracket 7 comes into contact with the rod-shaped engaging portion, providing a sense of moderation as it fits into the lock. When the change lever 1 is moved from the front to the rear, the rod-shaped engaging portion 8 moves the slide plate 5 forward and pushes the inner cable 4. The control shaft 20 is driven forward (to the left in the direction of the cable in FIG. 1). At the end of the operation stroke, the rod-shaped engaging portion 8 comes into contact with the left end groove wall of the vertical groove S2. The operator gets a sense of moderate rigidity that hits hard.

In the above embodiment, push/pull cables are exemplified as the outer cable 3 and inner cable 4 of the coaxial cable 2. However, two sets of solid push-pull cables, each separate, may also be used. Then, each cable is individually connected to the slide plates 5 and 6.

As described above, according to the present invention, a slide plate connected to a push/pull cable is slidably provided on a bracket in which a guide groove is formed according to a change pattern, so that the lower end engagement portion of the change lever is slidably provided. Both slide plates are made to move mutually exclusively according to the movement, and the lower end engaging part of the change lever is brought into contact with the groove wall of the guide groove of the bracket at the end of the change stroke, so the cable can be connected This also has the effect of giving an effective sense of rigidity to the operator in a remote control mechanism that transmits the operating force of the change lever to the transmission.

Further, in the present invention, since the first and second slide plates are configured to be slidable only in the front and rear directions,
Both slide plates can be guided by a common guide member, and the guide structure can be made simple and compact.

Furthermore, since the first and second slide plates are structured to slide in the same direction, the connection structure with the cable can also be simplified.

[Brief explanation of the drawing]

FIG. 1 is a schematic vertical cross-sectional view of one embodiment, FIG. 2 is an illustrative diagram of a change pattern, and FIG. 3 is an explanatory diagram of a groove shape, in which a is a bracket, b is a slide plate 5, and c is an explanatory diagram of a groove shape. shows the slide plate 6.
FIG. 4 is a schematic perspective view of the cable-to-control shaft transmission mechanism, and FIG. 5 is a perspective view of the support piece. 1...Change lever, 3...Outer cable, 4...Inner cable, 5, 6...Slide plate, 7...Bracket, 8...Bar-shaped engagement part, 2
0...Control shaft, S...Guiding groove formed in the bracket, SI...Groove formed in the slide plate 5, SZ...Groove formed in the slide plate 6.

Claims (1)

[Scope of Claims] 1. A remote control in which a change lever is swingably supported on a holding member fixed to the vehicle body, and the operation of the change lever is transmitted to and controlled by a transmission device of the automobile via a coupling mechanism. In the mechanism, a bracket is provided at the bottom of the holding member, in which a guide groove is formed to guide the engagement end of the change lever forward, backward, left, and right according to the change pattern;
A guide member is provided at the bottom of the bracket to slidably guide the first slide plate and the second slide plate that engage with the engagement end of the change lever in the front and rear direction, and the first slide plate is provided with a groove that matches the groove in the left-right direction of the guide groove, while the second slide plate is provided with a groove in the front-rear direction that matches the groove in the front-rear direction of the guide groove, and a diagonal groove that diagonally crosses the groove in the front-rear direction. A push-pull cable is fixed to each end of the first slide plate and the second slide plate, so that the first slide can be moved by the longitudinal operation stroke of the change lever. While sliding the plate in the front-rear direction, the engagement end of the change lever is brought into contact with the end of the guide groove of the bracket at the end of the stroke, while the second The slide plate is slid in the front-rear direction, and at the end of the stroke, the engagement end of the change lever is brought into contact with the end of the guide groove of the bracket, thereby giving the operator a sense of rigidity. A remote control mechanism for automotive transmissions.