JPH0132117Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automobile transmission operating device in which operating forces in the select direction and shift direction are transmitted through separate push-pull type control cables.

In a transmission operating device using a push-pull type control cable, the inner cable is inserted freely through a flexible outer tube to transmit operating force in both push and pull directions. When wiring the terminals of the cable that transmits the operating force in the shift direction and the cable that transmits the operating force in the shift direction on the operating device side of each cable in parallel, the shift cable should be able to tilt freely in the longitudinal and lateral directions with respect to the vehicle body. The select cable must be connected to one end of the bell crank that converts the horizontal tilting of the operating lever into a longitudinal tilting. Conventionally, the connecting part between the control lever and the bellcrank was a square bush that was fitted into the tip of a rod that protruded laterally from the center of tilting of the control lever in the front-rear direction. It has a structure in which the rod is slidably fitted in the axial direction into a guide groove that is long in the tilting direction of the rod formed at the end, and it is difficult to match the width of the bush accurately to the width of the guide groove. As a result, play occurs between the rod and the bellcrank guide groove, resulting in a lack of firmness when operating the operating lever, and the operating lever is susceptible to vibration due to engine vibrations transmitted via the cable. It was hot.

The object of the present invention is to provide a transmission operating device that eliminates the above-mentioned drawbacks, increases the sense of certainty when operating the operating lever, and prevents the operating lever from vibrating due to engine vibration. It is something to do.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

A base plate 6 of a holder 3, which has a bottom plate 2 of a box 1 fixed to a vehicle body, a spherical hole 4 whose upper end opens to the outside, and a vertical groove 5 formed on the right side surface.
is fixed by a bolt 7, a sphere 10 having the same radius as the spherical hole 4 is fixed to the lower end, and the diameter is smaller than the width of the vertical groove 5 protruding rightward from the center of the sphere 10. An operating lever 9 with a protruding rod 11 inserts the sphere 10 into the spherical hole 4 and inserts the rod 11 into the spherical hole 4.
are fitted into the vertical grooves 5, and are supported to freely tilt in the shift direction, which is the front and back direction, and in the select direction, which is the left and right direction, and the operating lever 9 is in the central neutral position.
When positioned at _N0 , the rod 11 assumes a horizontal position, and an L is attached to the tip of a left-right shaft 14 protruding from the right side plate 13 of the holding body 3 of the box 1. letter shaped bell crank 1
5 is supported to freely swing back and forth, and a torsion coil spring 16 applies a backward swinging force, and the tip of the rod 11 has a spherical outer periphery as shown in FIG. 18 and split groove 19
A central hole 20 of a cylindrical second bushing 17 made of synthetic resin having a diameter is fitted so as to be freely slidable in the axial direction, and this second bushing 17 forms a spherical hole 23 on its inner periphery that aligns with the spherical surface 18. At the same time, a first bush 2 also made of synthetic resin is formed with flanges 24 and 25 at both ends in the axial direction, and has four slots 26.
The first bushing 22 is fitted into the spherical hole 23 of the bell crank 15, and is pushed into the mounting hole 29 of the cylindrical portion 28 formed at one end of the bell crank 15, and the first bushing 22 is fitted into the spherical hole 23 of the collar 2.
4 and 25, and the rod 1
The distal end portion of the bell crank 15 is connected to one end portion of the bell crank 15 so as to be freely slidable in the axial direction and freely swingable.

A cylindrical fixture 33 fixed to the end of a shift control cable P1 connected to a shift operation member of a transmission (not shown) is passed through the left end of the front plate 30 of the holder 3 of the box ₁ , and the nut is tightened. 3
The end of the inner cable 32 is fixed to the proximal end of the rod 36, which is slidably fitted into the sleeve 35, which is fixed by the sleeve 35 and freely swingable by the cylindrical fixture 33. , is connected by a shaft 39 to a mounting member 38 fixed to the operating lever 9, and the shift control cable _P1 described above is connected to the right end of the front plate 30.
The cylindrical fixture 33 of the select control cable _P2 , which has the same structure and is connected to the select operation member of the transmission that is routed parallel to this cable _P1 , is fixed, and the tip of the rod 36 is fixed. ,
It is connected to the other end of the bell crank 15 by a shaft 40.

Next, the operation of this embodiment will be explained.

When the operating lever 9 is swung left and right to tilt from the center neutral position N ₀ to the left and right neutral positions N ₁ and N ₂ , the rod 11 swings up and down within the vertical groove 5 with the center of the sphere 10 as the swing center. The tip of the bell crank 15 swings its head due to the fitting of the spherical surfaces of the second bushing 17 and the first bushing 22, and slides in the center hole 20 of the second bushing 17 in the axial direction. By pulling up or pushing down one end, the bell crank 15 swings back and forth about the shaft 14, thereby pushing the inner cable 32 of the selection control cable P ₂ inside the outer tube 31. The pulling motion drives the select operation member of the transmission.

In addition, in the above-mentioned selection operation, when the rod 11 moves up and down, its tip draws an arc-shaped rocking locus that bulges backwards around the shaft 14, so the operating lever 9 cannot be moved in a straight line. Instead, it tilts in the left and right directions while drawing an arcuate locus that bulges forward, but the bulge is very small and there is no risk of adversely affecting the operability of the operating lever 9.

In addition, the operating lever 9 is moved from the left neutral position _N1 to the first gear or second gear engagement position.
From the center neutral position N ₀ to the 3rd or 4th gear engagement position, and the right neutral position N ₂
to 5th gear or reverse meshing position V,R
When the rod 11 is inserted, the rod 11 only rotates around its axis within the center hole 20 of the second bushing 17 and does not swing back and forth, so the operating lever 9 moves linearly around the axis of the rod 11. Tilt back and forth,
The inner cable 32 of the shift control cable _P1 is pushed or pulled to drive the shift operation member of the transmission.

In addition, in the above-mentioned shift operation, when shifting from the central neutral position _N0 , the rod 11
Since the is in a horizontal position in the left-right direction, the operating lever ₉ can be tilted in the front-rear direction perpendicular to the left-right direction. When shifting from _N2 , as described above, the rod 11 is tilted upward or downward in an arcuate trajectory during the shift operation, and in the upward or downward position, the tip of the rod 11 is slightly tilted forward. Because it is in a tilted state, the operating lever 9 is not perpendicular to the left-right direction, but tilts back and forth along a trajectory with the front tilted to the left, but the tilt is very small; This also does not adversely affect the operability of the operating lever 9.

As specifically explained in the above embodiment,
The automobile transmission operating device of the present invention supports an operating lever so that it can tilt freely in the longitudinal and lateral directions with respect to the vehicle body, and the other end of the inner cable of the control cable is connected to the shift operating member of the transmission. The other end of an inner cable of a control cable connected to the operation lever and having one end connected to the select operation member of the transmission is connected to one end of a bell crank pivotally supported on the vehicle body, and formed at the other end of the bell crank. A first bushing made of synthetic resin having flanges at both ends and a spherical inner circumferential surface whose diameter can be reduced by inserting a plurality of slots from one end is fitted into the mounting hole, and the first bushing is A second bushing made of synthetic resin with a spherical outer circumferential surface that can be reduced in diameter by cutting grooves in the axial direction is fitted into the second bushing so as to be freely rotatable in any direction. The main feature is that a rod is inserted that protrudes laterally from the center of tilting in the direction, and the fitting part between the rod and the bush and the fitting part between the bush and the bell crank are precisely machined by machining. Since it is possible to reduce the play in the connection between the rod fixed to the operating lever and the bell crank, it is possible to increase the sense of certainty when operating the control cable with the operating lever, and
The first bushing has a slot and the second bushing 2 has a slot so that the diameter of each bushing can be reduced, making it easy to assemble to the bell crank.Furthermore, both bushings are made of synthetic resin. Excellent wear resistance,
Not only does it slide smoothly, but the vibration-absorbing effect of the synthetic resin prevents the operating lever from vibrating due to engine vibrations transmitted through the control cable.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention;
FIG. 2 is an exploded perspective view showing details of the connecting portion between the rod and the bell crank. DESCRIPTION OF SYMBOLS 1... Box, 3... Holding body, 4... Spherical hole, 9... Operation lever, 10... Sphere, 11...
Rod, 15...bell crank, 17...second bushing, 18...spherical surface, 22...first bushing,
23...Spherical hole, 28...Cylinder part, 29...Mounting hole, 32...Inner cable, _P1 ...Shift control cable, _P2 ...Select control cable.

Claims (1)

[Scope of utility model registration request] The control lever is supported so as to be tiltable in the longitudinal and lateral directions with respect to the vehicle body, and the other end of an inner cable of a control cable whose one end is connected to the shift operation member of the transmission is connected to the operation lever, and The other end of the inner cable of the control cable, which has one end connected to the select operation member of
A first bushing made of synthetic resin having flanges at both ends and having a spherical inner circumferential surface whose diameter can be reduced by making multiple slots from one end is fitted, and the first bushing is inserted into the first bushing in the axial direction. A second bushing made of synthetic resin with a spherical outer circumferential surface that can be reduced in diameter by cutting grooves is fitted so as to be freely rotatable in any direction, and from the center of tilting of the operating lever in the longitudinal direction, An automobile transmission operating device characterized by having a rod inserted therein that projects laterally.