JPH0318068B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an improvement of a shift device in a vehicle power transmission system.

[Prior Art] A shift device for shifting gears, etc. in a vehicle power transmission system has a vertical shaft directly connected to a shift lever that swings two-dimensionally in the X-axis direction and the Y-axis direction, the so-called horizontal axis direction. There were many mechanical types in which the displacement of the transmission gear, etc. was directly changed by the oscillating displacement between the vertical axis and the vertical axis.

In recent years, devices have been proposed in which this switching operation is performed via an electrical device.

In this case, two sets of switches are provided, one switch corresponding to positioning by swinging in the horizontal axis direction, and the other switch corresponding to positioning by swinging in the vertical axis direction. It is configured so that several types of shifts can be performed by opening and closing the contacts of the switch in accordance with the operation of the shift lever via an electric drive device.

[Problems to be Solved by the Invention] However, such a shift device has a configuration that combines two sets of switches, one for vertical displacement and one for horizontal displacement. Naturally, the switch circuit also becomes complicated.

Therefore, the present situation is that this shift device requires extra costs in the design and manufacturing stages, and is also disadvantageous in terms of maintenance and inspection during the use stage.

[Purpose of the Invention] Therefore, the present invention devises a selective displacement mechanism of the shift device so that the displacement operation of the shift lever can achieve reliable positioning with little play or rattling, and the shift gear can be controlled via an electrical device. The purpose of the present invention is to provide a shift device that requires only one set of switches for changing displacement.

[Structure of the Invention] In order to achieve the above object, the present invention includes: a vertical shaft connected below the shift lever; a horizontal shaft mounted so as to be movable in the axial direction substantially perpendicular to the vertical shaft; Positioning that performs positioning by converting a rocking displacement operation performed by selecting a plurality of positions in the longitudinal direction and lateral direction of the vertical shaft into a circumferential displacement and an axial displacement of the horizontal shaft using a shift lever. and a switch that opens and closes a contact in response to the operation of the horizontal shaft by means of an arm attached to the horizontal shaft.

[Function of the Invention] The shift device of the present invention is configured as described above, and the pivoting center of each pivoting displacement operation in the horizontal direction and the vertical direction of the shift lever is different in each pivoting direction,
This movement is divided into circumferential displacement and axial displacement of the horizontal shaft near the center of swing for positioning, resulting in compact and reliable operation.

Since the switch is operated by the reliable movement of the horizontal shaft with less play or rattling, it is possible to perform the shift operation with one set of small switches.

Therefore, the switch and circuitry are greatly simplified and are very advantageous in terms of design, manufacture and use.

[Embodiment] An embodiment of the shift device of the present invention will be described below with reference to the drawings of FIGS. 1 to 3.

A shift device 1 for shifting a transmission gear (not shown), which is part of a power transmission system of a vehicle, is provided on the floor to the side of a driver's seat (not shown).

The shift device 1 has an extended vertical shaft 5 connected to the lower part of the shift lever 3, and a short rectangular cylinder 7 is attached near the center of the vertical shaft 5 in the form of dividing the vertical shaft 5 into upper and lower parts. has been done.

A horizontal shaft 9 facing in the vehicle width direction inside the rectangular tube body 7
is disposed substantially perpendicularly to and penetrating the vertical shaft 5, and is pivotally supported on the rectangular cylinder body 7 by a pin 11.

Both ends of the horizontal shaft 9 extend through the left and right side walls of a bracket 13 of the shift device 1 fixed to the floor of the vehicle, and are supported by the side walls of the bracket 13 so as to be rotatable and slidable. .

In this embodiment, four annular grooves 17 are formed adjacent to each other on the outer periphery of one end 15 of the horizontal shaft 9, and a check ball mechanism 19 with a spring that engages with these annular grooves 17 is attached to the wall of the bracket 13. They form a lateral positioning device 21 for the axial movement of the transverse shaft 9.

A check ball 23 with a spring is also attached to the lower end of the vertical shaft 5 extending below the rectangular cylinder 7.

By operating the shift lever 3, the vertical shaft 5 swings about the horizontal shaft 9 along the direction of travel of the vehicle, that is, swings in the vertical direction.

At this time, the check ball 23 at the lower end of the vertical shaft 5 is abutted and guided by the arcuate groove 25, and is held in position only on the circular arc when the vertical shaft swings vertically on the vertical plane.

Therefore, when the shift lever 3 is swung in the horizontal direction, the check ball 2 provided at the lower end of the vertical shaft 5
3 is the center of rotation and swings.

Further, enlarged recesses for positioning are provided at the center and both ends of the arcuate groove 25. A vertical positioning plate 27 in which such an arcuate groove 25 with an enlarged recess is carved is mounted below the bracket 13.

The tip 29 of the pin 11 that pivotally supports the horizontal shaft 9 in the rectangular cylinder 7 extends to the vicinity of the front wall surface of the bracket 13.

Then, in order to engage the pin tip 29 in accordance with the circumferential and axial displacements of the horizontal shaft 9, a groove (not shown) is formed in a shape with comb teeth facing each other from above and below, with a groove width approximately equal to the pin tip diameter. A grooved plate 33 engraved with a groove is attached to the inner surface of the front wall of the bracket 13.

Further, an arm 35 is attached to the end surface of one end 15 of the horizontal shaft 9, and the tip of the arm 35 is shaped to protrude horizontally forward, and the tip of the arm 35 engages to form a contact point. A switch 37 for switching the displacement of a speed change gear or the like via an electric device is provided in an opening/closing arrangement.

In this embodiment, the switch 37 has eight circuits and 16 contacts, and is mounted on a bracket 39 projecting from the side of the case 13. The contact points are arranged so that the arm 35 opens and closes the contact points in correspondence with the respective positioning points of the circumferential displacement and the axial displacement of the horizontal shaft 9.

In the shift device 1 configured as described above, the movement when the shift lever 3 is operated will be described.

First, when the shift lever 3 is swung in the vertical direction (horizontal direction in FIG. 2), it oscillates around the horizontal shaft 9. The check ball 23 at the lower end of the vertical shaft 5 is connected to the vertical positioning plate 27.
It moves guided by the arcuate groove 25 and is positioned in the enlarged recess in the arcuate groove 25.

Next, when the shift lever 3 is swung in the lateral direction (left-right direction in FIG. 1), the center of rotation in this case is
As mentioned above, this becomes the check ball 23 at the lower end of the vertical shaft 5. The horizontal shaft 9 in the middle of the vertical shaft 5 moves in the axial direction by a stroke that is a fraction of the amount of swing of the shift lever 3, and is controlled by the horizontal positioning device 21 at four points during the axial movement stroke. Positioned.

That is, each swing operation in the vertical and lateral directions by the shift lever 3 causes a circumferential displacement of the horizontal shaft 9, which is accompanied by three-point positioning, and an axial displacement, which is accompanied by four-point positioning. The dynamic center is divided and transformed under different conditions.

This positioning means for dividing and converting is composed of the horizontal shaft 9, the horizontal positioning device 21, the vertical positioning plate 27, the check ball 23, and the like.

The grooved plate 33 engages the extended tip 29 of the pin 11 that pivotally supports the horizontal shaft 9, thereby further reliably restricting the movement of the horizontal shaft 9 in the two divided and positioned directions.

That is, when the shift lever 3 swings in the vertical and lateral directions, excessive movement, insufficient movement, and movement that may lead to malfunction are reliably regulated, and only accurate shift movement is possible.

This reliable operation accurately moves the arm 35 at one end 15 of the horizontal shaft 9, thereby opening and closing the contacts of the switch 37. Furthermore, since the structure is as described above, there are extremely few unnecessary connecting parts that may cause play or rattling.

[Effects of the Invention] As is clear from the above description, according to the shift device of the present invention, the vertical and lateral shifting swinging motions of the shift lever move around the circumference of one horizontal shaft near the center of rotation. Since the position is determined by dividing into directional displacement and axial displacement, the movement is small but extremely clear. Moreover, as mentioned above, due to the structure, there is almost no play or wobbling.

As a result, it is possible to electrically drive a multi-stage shift operation with one set of switches, and the configuration of the switches themselves and the circuitry can be significantly simplified compared to the case of two sets of switches.

Therefore, it is possible to reduce costs in terms of designing and manufacturing electric circuits, while also greatly reducing failures in use and making maintenance and inspection extremely easy.

[Brief explanation of drawings]

1 to 3 show a shift device according to an embodiment of the present invention, in which FIG. 1 is a partially cutaway front view explanatory view, FIG. 2 is a partially cutaway side view explanatory view,
FIG. 3 is a partially cutaway side view explanatory view showing another part of the same as above. 3...Shift lever, 5...Vertical shaft, 9...
... Lateral shaft, 21 ... Lateral positioning device, 2
3...Check ball, 27...Vertical positioning plate, 37...Switch.

Claims (1)

[Claims] 1. A vertical shaft connected below the shift lever, a horizontal shaft mounted almost orthogonally to the vertical shaft so as to be movable in the axial direction, and a plurality of vertical shafts each vertically and horizontally moved by the shift lever. A positioning means for positioning the horizontal shaft by converting a rocking displacement operation performed by selecting a location into a circumferential displacement and an axial displacement of the horizontal shaft, and an arm attached to the horizontal shaft. A shift device characterized by comprising a switch that opens and closes contacts in response to the operation of the switch.