JPS62120523A - Remote control device for transmission of vehicle - Google Patents

Abstract

PURPOSE:To attain accurate selecting action by using an angle displacement amplifying mechanism which amplifies the angle displacement amount in the twist direction of the end of an outer tube against the revolving operation angle in the selecting direction of a control lever. CONSTITUTION:When a control lever 1 is operated in the shift direction, the lever 1is turned round a shaft 5 to give a push-pull action to an inner cable connected to a cable connecting part 1a through an end of the cable in the axial direction. When the lever 1 is operated in the selection direction, a cable attachment tool 6 oscillates centering on a shaft 4 and at the same time has the relative revolution to an arm part 32. Then an angle displacement amplifying mechanism is provided to an attachment tool for an outer tube 82 of the lever 1 to amplify the displacement amount of the twist direction at the end of the tube 82 against th revolving angle in the selecting direction of the lever 1. Thus the angle displacement can be increased up to such a level that a shifter rod 13 can be turned satisfactorily by an angle needed for a selecting action. This secures an accurate selecting action.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a remote control device for a vehicle transmission.

Conventional technology As a remote control device for a vehicle transmission, there is a cable-type remote control device that transmits the shift direction operation and select direction operation of the control lever to the transmission side using a shift cable and a select cable, respectively. Various devices have been developed in the past (for example, Utility Model Application Publication No. 57-14712).
(See Publication No. 0).

Problems to be Solved by the Invention As described above, the cable-type remote control device using two cables, a shift cable and a select cable, is capable of controlling both the shift direction and the select direction of the operating lever. On the other hand, for example, a lever mechanism must be provided on a part of the operating lever to convert the operation in the select direction into movement in the axial direction of the select cable, which not only complicates the structure and increases the size of the operating lever assembly, but also increases the size of the select cable. A lever mechanism must be installed on the transmission side that converts the axial movement of the cable into rotational movement of the shifter rod of the transmission, making the structure of the transmission complex and large, with a large number of parts, making it expensive, etc. I have this problem.

In order to solve the above-mentioned problems with cable-type remote control devices, it is natural to use a push-pull/torsion cable that can transmit operating force by pushing, pulling, and twisting in the axial direction with a single cable. However, since the flexible inner cable that transmits the operating force is fitted and guided within an outer tube that has a certain degree of rigidity, the operating force in the push and pull directions can be sufficiently transmitted, but the rigidity in the torsional direction is We have specially manufactured a special bush blue torsion cable that has extremely high torsional rigidity of the inner cable, which is generally extremely low and it is impossible to transmit the torsional operating force through the inner cable with ordinary cables currently in use. Naturally, if you try to use this, the cost will be significantly higher than when using a commercially available cable.

The present invention addresses the above-mentioned conventional problems. ! The main purpose of this invention is to provide a remote control device for a transmission that can solve all problems.

Means for Solving the Problems The present invention provides a remote control device for a vehicular transmission, in which a member comprising an outer tube and an inner cable serves as a member for transmitting the rotational operation of a control lever to a shifter rod of the transmission.
Using push-pull and cables, the rotation operation of the operating lever in the shift direction is transmitted to the shifter rod by the push-pull operation of the inner cable, and the rotation operation of the operating lever in the select direction is transmitted to the shifter rod by the angular displacement of the outer tube in the torsional direction. and an angular displacement amplification mechanism that increases the amount of angular displacement in the torsional direction of the outer tube due to the rotation operation of the operation lever in the selection direction compared to the rotation operation angle of the operation lever in the selection direction. This is a characteristic feature.

As described above, the shift operation is transmitted to the shifter rod of the transmission by push-pull operation of the inner cable, and the shift operation is performed by operating the shifter rod in the axial direction, and the select operation is transmitted to the shifter rod of the transmission by the angular displacement of the outer tube in the torsional direction. A selection operation is performed by rotating the shifter rod around its center line, and the amount of angular displacement of the outer tube in the torsional direction is determined by an angular displacement amplification mechanism based on the operating angle of the operating lever in the select direction. Therefore, the decrease in the rotation angle of the shifter rod due to the torsional deformation of the outer tube is compensated for by the amplification of the angular displacement in the torsional direction of the outer tube by the angular displacement amplification mechanism.
It is possible to obtain the required rotation angle of the shifter rod without setting a large selection direction rotation operation angle of the operation lever.

Example Embodiments of the present invention will be described below with reference to the accompanying drawings.

In the attached diagram, ■ indicates an operating lever installed in the vehicle interior, and 2
is a bracket attached to a vehicle body member such as a floor panel, and a selection direction rotation member 3 is rotatably attached to the bracket 2 via a shaft 4. An operating lever pivoting portion 31 for pivoting the operating lever 1 so as to be rotatable in the shift direction is integrally or integrally provided on the select direction rotating member 3 and protrudes downward. An arm portion 32 is integrally or integrally provided, and the arm portion 32
A cylindrical cable fitting 6 is mounted on a bearing 7 so as to be rotatable about its axis, and the operating lever 1 is attached to the operating lever shaft mounting portion 31 of the selection direction rotating member 3. By attaching the middle part of the shaft with the shaft 5,
The operating lever l can be rotated around the vehicle 5 in the shift direction, that is, in the longitudinal direction of the vehicle body, and can be rotated around the shaft 4 in the select direction, that is, in the vehicle width direction.
It is designed so that it can be rotated with the

In the assembled state of the operating lever 1 as described above, the cable connecting portion 1a at the lower end of the operating lever 1 is located on the rearward extension of the axis of the cable attachment 6.

The cylindrical cable fitting 6 attached to the arm portion 32 of the selection direction rotation member 3 is assembled so as to pass through the window hole 21 formed in the bracket 2, and is mounted around the axis 4 of the selection direction rotation member 3. The maximum rotation angle in the selection direction is regulated by the cable fitting 6 or the arm portion 32 coming into contact with the left and right edges of the window hole 21 provided in the bracket 2.

An arm 61 that projects upward is integrally or integrally provided on the cable attachment 6, and a pin 62 fixed to the arm 61 can be slid up and down into a long hole 22 in the vertical direction provided in the bracket 2. It has a structure in which it is fitted and engaged.

The engagement portion of the pin 62 with the elongated hole 22 can be located at any position between the center of the shaft 4 and the center of the cable attachment 6.

8 is a push-pull cable consisting of an inner cable 81 and an outer tube 82 that fits and supports the inner cable 81, and one end of the outer tube 82 of the push-pull cable 8 is attached to the cable fitting 6 by caulking or the like. At the same time, one end of the inner cable 81 passes through the inside of the cable fitting 6 and is operated behind it.
1 Attach the cable end rod 8 to the cable connection part 1a at the lower end.
1a and are pin-coupled.

On the other hand, a bracket 10 is attached to the case of the gearshift a9, and a cylindrical rotating member 11 having a substantially cylindrical shape is mounted on the bracket 10 so that its axis line coincides with the extension of the center line of the shifter rod 13. , is mounted so as to be rotatable about an axis by a bearing 12, and the other end of the outer tube 82 of the push-pull cable 8 is fitted into the cylindrical rotating member 11 by caulking or the like, and the inner cable 8
1 passes through the inside of the cylindrical rotating member 11 and is pinned to the shifter rod 13 through a cable end rod 81b.

An arm member 14 is integrally fixed to the shifter rod 13, and the protrusion 11a of the cylindrical rotating member 11 engages in the engagement groove 14a of the arm member 14 in the rotational direction, so that the rotation of the cylindrical rotating member 11 is prevented. The signal is transmitted to the shifter rod 13 through the arm member 14.

In the above, when the operating lever 1 is operated in the shift direction, that is, in the longitudinal direction of the vehicle body, the operating lever 1 rotates around the shaft 5 and pushes in the axial direction the inner cable 81 whose one end is pin-coupled to the cable coupling part 1a. Pull to activate. Since the inner cable 81 is fitted and supported within an outer tube 82 which has a certain degree of rigidity and flexibility, the shifter rod 13 of the transmission 9 can be accurately moved in the axial direction by the above-mentioned axial pushing and pulling operation. and shift operation of the transmission 9 is performed.

When the operating lever 1 is operated in the selection direction, that is, in the vehicle width direction, the operating lever 1 rotates around the shaft 4 together with the selection direction rotating member 3, and the arm portion 32 and the cable attachment 6 also rotate around the shaft 4. It swings left and right around the center. In this case, the cable fitting 6 as a whole swings about the shaft 4 and rotates relative to the arm portion 32 due to the engagement between the pin 62 and the elongated hole 22 of the bracket 2.

That is, as shown in FIG. 3, assuming that the cable attachment 6 does not rotate relative to the arm 32, when the arm 32 swings by an angle θ1 about the center O1 of the shaft 4, the cable attachment 6 The cable fitting 6 is angularly displaced by the above-mentioned swing angle O1, but the cable fitting 6 is rotatable relative to the arm portion 32, and the pin 62 of the cable fitting 6 slides into the elongated hole 22 of the bracket 2 only in the vertical direction. Furthermore, the distance between the center 01 of the shaft 4 and the center 02 of the cable fitting 6, that is, the center 03 of the pin 22 and the cable fitting 6 relative to the swing radius of the cable fitting 6 centered on 01. In the present invention, in which the distance 212 from the center 02 of the cable fitting 6 is 9.1 > 12, the cable fitting 6 rotates by an angle θ2 relative to the arm portion 32 as the angle θ1 swings, and the cable The angular displacement of the fixture 6 is 01+02. The amount of amplification of the angular displacement of the cable fitting 6 with respect to the swing angle θ1 as described above is determined by the ratio of expression 1 and expression 2, so by setting the ratio appropriately, the operation of the operating lever can be made relatively small. Cable attachment 6 at the corner (=swing angle of arm part 32)
The desired angular displacement can be obtained.

When the cable fitting 6 is angularly displaced as described above, the outer tube 82 fitted to the cable fitting 6
is angularly displaced in the torsional direction integrally with the cable fitting 6,
Since the outer tube 82 has considerably higher torsional rigidity than the inner cable 81, the angular displacement in the torsional direction is transmitted to the cylindrical rotating member 11 that fits the other end of the outer tube 82, and the cylindrical rotation The member 11 engages the rotation screw protrusion 11a and the engagement groove 14a, thereby causing the arm member 14 to rotate the shifter rod 13 about its center line, thereby performing a selection operation of the transmission 9.

Although the outer tube 82 has much higher torsional rigidity than the inner cable 81 during the selection operation as described above, the outer tube 82 transmits rotational force to the shifter rod 13 while being torsionally deformed to some extent. Therefore, in order to rotate the shifter rod 13 by a predetermined angle, it is necessary to angularly displace the end of the seven outer tubes 82 of the operating lever pair by an amount corresponding to the torsional deformation.

Therefore, as in the present invention, an angular displacement amplification mechanism is provided on the outer tube 82 mount on the operating lever 1 side to amplify the angular displacement amount in the torsional direction of the end of the outer tube 82 relative to the rotation operating angle of the operating lever 1 in the select direction. As a result, even if the operating angle of the operating lever l in the select direction is set to a small angle that satisfies the operability, the amount of angular displacement in the torsional direction of the end of the outer tube 82 can be reduced by torsional deformation of the outer tube 82. It is possible to make the shifter rod 13 large enough to rotate the shifter rod 13 by the angle required for the selection operation while absorbing the amount of noise, and to perform an accurate selection operation.

As described above, even if a currently used general cable whose torsional rigidity of the outer tube 82 is not sufficiently high is used, it /12 in FIG. By making appropriate selections,
The necessary turning force can be transmitted to the shifter rod 13 without increasing the operating angle of the operating lever l in the select direction.

Note that the connection structure between the end of the outer tube 82 on the transmission side and the shifter rod 13 of the gear shift a9 is not limited to the embodiment shown in the first figure; the movement of the shifter rod 13 in the axial direction does not affect the outer tube 82, and Any structure that can rotate the shifter rod 13 about its center line by the rotational force in the torsional direction of the tube 82 may be adopted.

Effects of the Invention As described above, according to the present invention, in a remote control device for a transmission, an extremely common material that has been commonly used in the past as a member for transmitting the rotational operation of the control lever to the shifter rod of the transmission is provided. A single push-pull cable can be used to accurately shift and select transmission operations using that single push-pull cable.
Compared to the conventional system that uses two push-pull cables: a shift cable and a select cable, the number of parts is reduced, the device is significantly smaller and lighter, and the cable routing space is also reduced. It is also possible to achieve significant cost reductions, which can bring great practical effects.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view showing an embodiment of the present invention, and FIG. 2 is a view taken along arrow A in FIG. FIG. 3 is an explanatory diagram showing the relationship between the angular displacement amount in the cable torsional direction and the rotation operating angle in the select direction of the operating lever shown in FIG. 1.2. ■...Operate 1<-12...Bracket, 3...
Select direction rotation member, 4.5... Axis, 6... Cable attachment tool, 61... Arm, 62... Pin, 7...
Bearing, 8... Push-pull cable, 81- Inner cable, 82... Outer tube, 9... Transmission, lO... Bracket, 11... Cylindrical rotating member, 1
2... Bearing, 13... Shifter seat, 14... Arm member. that's all

Claims (3)

[Claims] (1) As a member that transmits the rotational operation of the operating lever to the shifter rod of the transmission, a single pusher consisting of an outer tube and an inner cable fitted and supported so as to be movable in the axial direction within the outer tube Using a pull cable, the rotation operation of the operating lever in the shift direction is transmitted to the shifter rod by the axial movement of the inner cable, and the shifter rod is actuated in the axial direction, and the rotation operation of the operating lever in the select direction is transmitted in the twisting direction of the outer tube. The angular displacement is transmitted to the shifter rod so that the shifter rod is rotated about its center line, and the angular displacement of the outer tube in the torsional direction accompanying the rotational operation of the operating lever in the select direction is transmitted to the shifter rod. 1. A remote control device for a vehicle transmission, characterized in that it is provided with an angular displacement amplification mechanism that increases the rotational operating angle in the select direction. (2) The angular displacement amplification mechanism consists of a tube in which one end of the outer tube is fitted and fixed, and is supported rotatably around its center line by an arm that swings left and right as the operating lever is rotated in the select direction. A cable fitting having a shape, a pin provided on an arm protruding from the cable fitting, and a pin provided on a bracket fixed to a vehicle body member between the center of swing of the arm portion and the center of the cable fitting. 2. The remote control device for a vehicle transmission according to claim 1, wherein the remote control device includes an elongated hole that is fitted and engaged so that the device can move only in the vertical direction. (3) The transmission side end of the outer tube is fitted and fixed to a cylindrical rotating member which is supported by a bracket fixed to the transmission case so as to be rotatable about its center line. Claims characterized by a structure in which the protrusion of the member engages in the engagement groove of the arm member provided on the shifter rod of the transmission in the rotational direction and is slidable in the axial direction. A remote control device for a vehicle transmission according to item 1 or 2.