JPH0116185Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a select return structure in a remotely operated manual transmission control of a vehicle such as an automobile.

[Conventional technology]

The prior art is shown in FIGS. 6 and 7. This conventional example is of a cam type, and reference numeral 1 denotes a control lever. A cam 2 is connected to the base of the lever. A pusher 3 is in contact with a cam surface 2A of the cam 2, and the pusher 3 slides against a cylinder 4. The spring 5 is fitted so as to be movable.
is biased toward the cam surface 2A side. The cam surface 2A is shifted in the shift direction shown by A-A, and B.
-B has the deepest part 2B at the neutral position in the selection direction, and has a concave shape that becomes gradually shallower around the deepest part 2B. When the control lever 1 is operated from the neutral position to the high side H or low side L, the elasticity of the spring 5 presses the pusher 3 against the cam surface 2A, and the wedge action of the cam surface 2A causes control. The lever 1 is biased towards the neutral position and returns to the neutral position when the control lever 1 is released.

Further, as a prior art, there is a spring method (for example, Japanese Patent Application Laid-Open No. 58-29030). In this system, the elasticity of a spring is applied directly to the control lever to return it to the neutral position.

[Problem that the invention attempts to solve]

In the cam type select return structure described above, the contact friction between the cam surface 2A and the pusher 3 is large, and when the control lever 1 is operated to the low side L, the operation feeling is deteriorated due to the resistance based on the friction. Further, in the spring type select return structure described above, since uniform elasticity is applied, no check force is generated when the control lever 1 is operated to the high side H. Also, as it wears out, play will occur when in neutral.

[Means for solving problems]

The purpose of the present invention is to solve the above-mentioned problems, and as a means to achieve the purpose, the present invention includes a control lever attached to the rotating shaft of a bracket that can freely rotate in the shift direction, and a control lever that can be rotated in the shift direction. The cam is attached to the shaft and has a cam shape consisting of an inclined part formed on the distal end side of the upper edge and a horizontal part formed next to the inclined part on the root end side, and the control lever is selected and operated. A roller that contacts the cam shape on the high side is rotatably mounted, and an arm whose root is pivotally connected to the bracket and a control lever provided around the rotating shaft are biased from the low side of the select operation to the neutral position. It has a configuration consisting of a spring and a spring that biases the arm toward the cam.

[Effect]

This invention is based on the above structure, and when the control lever is operated to the low side, the spring installed around the rotating shaft returns it to the neutral position, and when the control lever is operated to the high side, the arm is returned to the neutral position through the rollers. The cam is returned to the neutral position by being pressed by the elasticity of the spring.

[Effect of idea]

This invention is based on the above structure and operation, and when the control lever is operated to the low side, the elasticity of the spring acts directly, so there is no feeling of resistance and the operation feeling is good, and when the control lever is operated to the high side, a check is performed based on the cam shape. force is generated. Furthermore, even if the cam wears out, the pressing contact between the cam and the rollers of the arm prevents play from occurring.

〔Example〕

The present invention will be explained based on an embodiment shown in FIGS. 1 to 5. Reference numeral 11 denotes a control lever, which is erected from a rotating shaft 13 supported by a frame 12, and is oriented in the select direction shown in B-B. It is made rotatable and is biased by a spring 14 from the low side L toward the neutral position N. The frame 12 is further attached to a rotating shaft 15 perpendicular to the rotating shaft 13, so that the control lever 11 is
It is also rotatable in the shift direction shown in A.
The rotating shaft 15 is supported by brackets 16 and 17. Further, a shift lever 12A extends from the frame 12 in the direction AA and communicates with a transmission (not shown). The frame 12 is further formed with bracket portions 12B, 12B, and a shaft 18 is spanned between the bracket portions 12B, 12B.
The root end of the arm 19 is pivotally attached to the arm 19.
A roller 19A is rotatably attached to the side of the
A spring 20 is connected to the tip of the arm 19 to bias the arm 19 in the direction of arrow A in FIG. However, the rotation of the arm 19 in the direction of arrow A is caused by the stopper 1 extending from the frame 12.
2c. A yoke cam 21 is further attached to the rotation shaft 13 of the control lever 11, and includes an inclined portion 21A formed at the tip end of the upper edge of the yoke cam 21, and an inclined portion 21A formed at the root end side following the inclined portion 21A. horizontal part 21B
A cam shape 211 is formed, and the roller 19A of the arm 19 comes into contact with the cam shape 211. Furthermore, the tip of the yoke cam 21 serves as a select lever 21C, which communicates with a transmission (not shown).

In the above configuration, when the control lever 11 is in the neutral position shown in FIG. 2, the arm 19 comes into contact with the stopper 12C and is prevented from rotating in the direction of arrow A by the elasticity of the spring 20. When the control lever 11 is in the neutral position, the spring 14 exerts some elasticity on the high side H of the select operation.
Since this elasticity is smaller than the pressing force in the direction of arrow A, the neutral position of the control lever 11 does not vary depending on the vehicle, and is stable at this position, and due to the antagonism between the spring 14 and the spring 20 as described above. There is no longer any rattling. Next, as shown in FIG. 4, when the control lever 11 is operated to the high side H, the yoke cam 21 rotates in the direction of the arrow B. The cam shape 211 of the yoke cam 21 is the roller 19A of the arm 19.
The arm 19 is pushed up along the cam shape 211. Therefore, the control lever 11 includes a yoke cam 21, an arm 19, and a roller 19.
A return force to the neutral position is applied by the spring 20 via A. And the inclined part 21 of the cam shape 211 of the yoke cam 21
The difference in shape between A and the horizontal portion 21B gives a sense of checking. Next, as shown in FIG. 5, when the control lever 11 is operated to the low side L, the arm 19, which is biased by the spring 20 in the direction of the arrow in FIG. The control lever 11 does not operate because it is stopped and the spring 14
A return force is exerted to the neutral position only by this.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention; Figure 1 is a perspective view, Figure 2 is a side view in neutral state, Figure 3 is a front view, and Figure 4 is a high side operation. State explanatory diagram, Fig. 5 is a low side operation state explanatory diagram,
6 and 7 show conventional examples,
FIG. 6 is a side sectional view, and FIG. 7 is a cutaway plan sectional view. In the figure, 11... control lever, 12...
Frame, 13... Rotating shaft, 14, 20... Spring, 19... Arm, 19A... Roller, 21
...York cam.

Claims (1)

[Scope of utility model registration request] A control lever is attached to the rotating shaft of the bracket that can be rotated in the shift direction, an inclined part is attached to the rotating shaft and formed on the tip side of the upper edge, and a control lever is attached to the rotating shaft and is connected to the inclined part on the root end side. A cam having a cam shape consisting of a horizontal portion formed by a horizontal portion, and an arm having a base pivotally connected to the bracket, and a roller that abuts the cam shape on the high side of the select operation of the control lever is rotatably mounted. , consists of a spring installed around the rotating shaft that biases the control lever from the low side of the select operation to the neutral position, and a spring that biases the arm toward the cam side, so that when the shift lever is operated to the high side, the cam A select return structure of a gear shift operating section characterized in that the arm is rotated in a direction opposite to the direction in which the spring is biased through a roller.