JPS6239943Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floor shift mechanism that transmits movement in the shift direction and the select direction using a single shift rod.

Such a floor shift mechanism includes a support rod whose one end is rotatably supported around an axis by a support bracket, and whose one end is fitted onto the outer periphery of the support rod so as to be slidable in the axial direction, and which is slidable on the support bracket in the axial direction. A shift lever is provided with a shift rod movably supported, and a shift lever whose intermediate portion is pivotally connected to the shift rod and whose distal end is connected to the support rod, and the shift lever is selectively rotated around the axis of the support rod and in the axial direction. By rotating the shift rod around an axis or sliding it in the axial direction, a select lever and a shift lever connected to the shift rod are selectively operated to change gears.

By the way, in such a floor shift mechanism, as shown in FIG. 2a, one end of a support rod 1 is supported by a support bracket 2 so as to be rotatable only around an axis, and a shift rod 3 is mounted on the outer periphery of the support rod 1 in the axial direction. Slidably fitted. Therefore, in such a floor shift mechanism, the shift lever 4 is connected to the support rod 1.
By rotating the shift rod 3 about the axis or in the axial direction, the shift rod 3 can be rotated about the axis or slid linearly in the axial direction. Therefore,
The shift rod 3 can be directly connected to the base end of a select lever 5, which rotates and transmits movement in the shift or select direction, such as a shift lever or a select lever. It is not possible to directly connect the swinging end of a lever, for example a shift lever, which moves and transmits a movement in the shift or select direction. Therefore, in order to connect the shift lever to the shift rod 3, a cam 6, an arm 7, etc., which convert the linear movement of the shift rod 3 in the axial direction into a swinging movement, are interposed as shown in FIGS. 2a and 2b. There must be.

The present invention was developed in view of the above-mentioned circumstances, and its main purpose is to make the support rod relative to the support bracket and the support portion of the shift rod have a special structure to enable the shift rod to swing in the above-mentioned floor shift mechanism. Accordingly, the swinging end of the swinging lever can be directly connected to the shift rod.

In order to achieve this object, in the present invention, in the above-mentioned floor shift mechanism, each support part between the support bracket and the support rod and between the support bracket and the shift rod is formed into a spherical shape that slidably abuts on each other. A feature of the structure is that the shift rod and the support rod can swing around the support portion of the shift rod when the shift rod slides in the axial direction.

As a result, in the present invention, not only the base end of a rotating lever such as a shift lever or a select lever, but also the swinging end of a swinging lever can be directly connected to the shift rod.

Hereinafter, one embodiment of the present invention will be described based on FIG. 1. The floor shift mechanism shown in the drawing has a support rod 10, a shift rod 20, and a shift lever 30 as main components, and is fixed to a part of the vehicle body. It is supported by a support bracket 40 and placed on the floor of the vehicle.

The support rod 10 has a large diameter part 11 and a small diameter part 12.
The shift rod 2 is attached to the outer periphery of the large diameter portion 11.
0 is fitted, and is supported by the first arm 41 of the support bracket 40 at the small diameter portion 12. The shift rod 20 consists of a large diameter tube section 21, a medium diameter rod section 22, and a small diameter rod section 23, and the large diameter tube section 21 is fitted onto the outer periphery of the large diameter section 11 of the support rod 10. Pipe part 2
The second support bracket 40 is attached to the outer periphery of one end of the
It is supported by an arm 42. This large diameter pipe section 21
A circular opening 21a is formed in the upper wall of the intermediate portion of the shift lever 30, and the shift lever 30 is inserted into a cylinder 24 fixed to the outer peripheral edge of the opening 21a.
The shift lever 30 has an operation knob 31 at its upper end.
and a spherical connecting part 32 at its lower end.
It is pivotally connected to the cylinder 24 at its intermediate portion so as to rotate in the direction of the arrow shown in the figure. The connecting portion 32 of the shift lever 30 is connected to the shift rod 20 at the large diameter portion of the support rod 10.
A connecting recess 1 provided opposite to the inner hole of the cylindrical body 24 of
1a, and thereby the support rod 10, shift rod 20 and shift lever 3
0 are connected to each other. In such a shift rod 20, a selection lever 25 is fitted on the outer periphery of the other end of the medium diameter rod portion 22.
Further, a shift lever 27 is connected to the other end of the small diameter rod portion 23 via a ball joint 26. These levers 25 and 27 are connected via links to respective operating levers attached to the transmission case cover, and the select lever 25 rotates to transmit movement in the select direction, and the shift lever 25 rotates to transmit movement in the select direction. 27 swings to transmit movement in the shift direction.

Therefore, the support rod 10 is attached to the upper end 41a of the first arm 41 of the support bracket 40.
A circular through hole 41b having a larger diameter than the small diameter portion 12 is formed, and both surfaces of the upper end portion 41a are formed in a spherical uneven shape. A support rod 10 is inserted into the through hole 41b of the first arm 41.
A small diameter portion 12 passes through the small diameter portion 12, and a pair of support bushes 51 and 52 are fitted onto the outer periphery of the small diameter portion 12 by sandwiching the upper end 41a of the first arm 41 therebetween. Both support bushes 51 and 52 are made of wear-resistant synthetic resin, and their first
Opposing surfaces on both sides of the upper end portion 41a of the arm 41 are formed in a spherical shape. First arm 41
Both surfaces of the upper end portion 41a and the surfaces of the support bushes 51 and 52 opposing these are formed into spherical shapes with substantially the same radius of curvature, and are slidably abutted against each other. , 52 support the support rod 10 by sandwiching both sides of the upper end portion 41a. On the other hand, the through hole 42a provided in the second arm 42 of the support bracket 40 is formed to have a larger diameter than the outer diameter of the large diameter tube portion 21 of the shift rod 20, and its inner peripheral surface is formed in a spherical (concave) shape. ing. The through hole 4 of this second arm 42
2a is fitted with a slide bush 53 made of wear-resistant synthetic resin, and inside this slide bush 53, the large diameter tube portion 21 of the shift rod 20 is rotatable around the axis and axially It is slidably inserted. The slide bush 53 has an outer circumferential surface facing the inner circumferential surface of the through hole 42a of the second arm 42, and is formed into a spherical (convex) shape with approximately the same radius of curvature as the inner circumferential surface of the through hole 42a of the second arm 42. They are in slidable contact with each other. As a result, the left and right ends of the support rod 10 and the shift rod 20 in the first drawing can swing vertically about the slide bush 53 on the second arm 42 of the support bracket 40.

In the floor shift mechanism configured as described above, when the shift lever 30 is rotated in a direction perpendicular to the direction of the first arrow shown in the figure, the support rod 10 and the shift rod 20 rotate integrally around their axes, and the selection lever is rotated. Rotate 25.
Thereby, the selection lever 25 transmits the movement in the selection direction to the operating lever via the link. Further, when the shift lever 30 is rotated in the direction of the first arrow shown in the figure, the shift rod 20 slides in the axial direction with respect to the support rod 10, and at the same time, both the left and right ends of these rods 10, 20 as shown in the figure move toward the slide bush 53. The shift lever 27 is pivoted by pivoting vertically around the shift lever 27 . This results in
The shift lever 27 transmits movement in the shift direction to other operating levers via links.

In this way, in the floor shift mechanism, the support bracket 40 and the support rod 1
0 and between the support bracket 40 and the shift rod 20 are made into spherical shapes that slidably abut against each other, allowing both rods 10 and 20 to swing, so that they can swing like the shift lever 27. The swinging end of the operative lever can be connected directly to the shift rod 20. Further, this eliminates the need to employ cams, arms, etc. for converting the linear motion of the shift rod into rocking motion, as in the conventional floor shift mechanism shown in FIG. 2, and the structure becomes simple.

Note that the present invention is not limited to the floor shift mechanism of the type shown in the above embodiment, but also includes a support rod whose one end is rotatably supported around an axis by a support bracket, and whose one end is slidable in the axial direction on the outer periphery of this support rod. a shift rod which is fitted into the support bracket and is slidably supported in the axial direction; and a shift lever whose intermediate portion is pivotally connected to the shift rod and whose distal end is connected to the support rod. By selectively rotating the support rod around the axis and in the axial direction to rotate the shift rod around the axis or sliding it in the axial direction, the select lever and the shift lever connected to the shift rod can be selectively operated. It can be implemented in various types of floor shift mechanisms that are actuated to change gears.

[Brief explanation of the drawing]

Fig. 1 is a partially vertical side view of a floor shift mechanism according to an example of the present invention, Fig. 2a is a longitudinal side view of an example of a conventional floor shift mechanism, and Fig. 2b is a side view of an arm in the floor shift mechanism. FIG. Explanation of symbols, 10...Support rod, 20...
...Shift rod, 25...Select lever, 2
7...Shift lever, 30...Shift lever,
40... Support bracket, 41, 42... Arm, 51, 52... Support bush, 53...
...Slide button.

Claims (1)

[Scope of utility model registration request] A support rod whose one end is rotatably supported around an axis by a support bracket; and a shift rod whose one end is fitted onto the outer periphery of the support rod so as to be slidable in the axial direction, and which is supported by the support bracket so as to be slidable in the axial direction. and a shift lever whose intermediate portion is pivotally connected to the shift rod and whose distal end is connected to the support rod, and the shift lever is selectively rotated around the axis of the support rod and in the axial direction to rotate the shift rod. In the floor shift mechanism, the support bracket and the support rod are rotated around an axis or slid in the axial direction to selectively operate a select lever and a shift lever connected to the shift rod to change gears. The support portions between the support bracket and the shift rod are formed into spherical shapes that slidably abut against each other, so that when the shift rod slides in the axial direction, the shift rod and the support rod support the shift rod. A floor shift mechanism characterized by being able to swing around the center.