JPS6324012Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a casing that can give a sense of moderation when operating a change lever of a gear shift command signal generation unit that operates a vehicle transmission.
This invention relates to a moderation-feeling casing in which an automatic return device for a change lever is installed in parallel.

BACKGROUND OF THE INVENTION It is common practice to use energy such as electricity or fluid pressure to boost the operation of a transmission to facilitate gear shifting. For example, the present applicant
As disclosed in the above publication, a gear shift command signal generation unit (hereinafter simply referred to as the command unit) in the driver's seat generates a gear shift signal, which is applied to a signal processing unit consisting of a relay circuit, etc., and the gear shift is performed by the output of the signal processing unit. operate the unit,
It is known that a booster operated by a switching valve operates a transmission to change gears. Among these, the command unit is a finger control change lever unit, and the change lever moves through a shift pattern as shown in Figure 1 by shift operation, and generates a signal according to each shift position by switching the switch. . In this case, the amount of effort required to shift gears is minimal, and there is almost no sense of whether the gear shifting operation is complete or not.Furthermore, if left as is, the shift lever itself is likely to become misaligned, giving the driver a sense of anxiety. , a casing 1 for generating a sense of moderation as shown in FIG. 6 is used. This casing 1 has a bowl-shaped surface 2 at its center, and is provided with engagement holes 3 corresponding to the number of shift positions into which locking balls (not shown) on the change lever side are fitted. When the change lever moves and reaches each shift position, this casing 1 can hold the change lever at that position with an appropriate sense of moderation. However, if an automatic return device is installed on the change lever to automatically return it to a specific neutral position N2 among the neutral positions (shown as N1, N2, and N3 in FIG. 6), this engagement hole 3, the return operation cannot be performed smoothly, causing inconvenience.

The object of the present invention is to provide a moderation feeling generating casing for a command unit that can give a feeling of moderation to a change lever and also allow smooth automatic return to a specific neutral position.

The moderation feeling generating casing of the command unit according to the present invention has a concave portion in the bowl-shaped surface into which the locking ball that elastically protrudes from the change lever is fitted and disengaged, and the concave portions corresponding to all neutral positions are formed into uniform long grooves. and an automatic return device that automatically returns the change lever to a predetermined neutral position among all neutral positions on the long groove when the locking ball fits into the long groove. do.

The present invention will be described below with reference to the accompanying drawings.

FIG. 2 shows an example of a command unit 10 for operating a transmission of a large vehicle. This command unit 10 manually operates a change lever 11 based on the shift pattern shown in FIG. 1, operates a select switch 12 and a shift switch 13, and sends a generated shift command signal to a signal processing unit (not shown). The command unit 10 has a box-shaped casing 14 that pivotally supports a select shaft 15 and a shift shaft 16 extending perpendicularly to the select shaft 15.
1 can be oscillated in the select direction A and the shift direction B. That is, as shown in FIG. 3, the change lever 11 has a connecting portion 111 connected to the select shaft 15 via a pin 17, and a connecting portion 111 connected to the select shaft 15 via a pin (not shown) so as to be relatively movable in the axial direction. The center line of the shift shaft 16 overlaps with the center line of the pin 17. The shift shaft 16 has a notch in its center, and a horizontal swing plate 163 having a vertical swing plate 161 and a guide hole 162 therein.
are integrally connected. and guide hole 1
The connecting portion 111 is slidably fitted into the connecting portion 62 .

The lever part 112 of the change lever fits into a guide groove 19 formed in the guide plate 18 on the upper part of the box-shaped casing 14, and can guide the lever part 112 to move along the shift pattern. A receiving hole 113 is formed at the lower end of the connecting portion 111 of the change lever, and the locking ball 20, which is pressed to protrude by a spring 114, is held in the receiving hole 113. This locking ball 20 faces a moderation feeling generating casing 21 as an embodiment of the present invention.

The moderation feeling generating casing 21 is shown in FIGS. 4 and 5.
As shown in the figure, a bowl-shaped surface 213, which is formed by a connecting plate section 211 and a bowl-shaped section 212 at its center, has a shift pattern and a point-symmetric relationship along the spherical surface. A recess is formed in accordance with each gear shift position. This recess is formed as an engagement hole 214 at each of the 1st to 5th speed and reverse positions, and is curved along a spherical surface at the three neutral positions, and has a long groove 214 that is linear in plan view.
5 were formed continuously and integrally. In addition, the long groove 21
5 has a central neutral position N2 as a predetermined neutral position set in the central part on the long groove, and a central hole 216 is formed in the lower part of the same position.
Therefore, the locking ball 20 is connected to the engagement hole 214 and the long groove 21.
5, a predetermined amount of actuation force is required to move away from that position again, so that the change lever 11 can be given a sense of moderation.

Select switch 12 and shift switch 1
3 have the same structure, and as shown in FIGS. 2 and 3, the swinging brush 1 is fixed to each shaft.
21, 131, and three fixed contacts 122, 132 arranged in an arc shape, and only the fixed contacts 122, 132 that are in contact with the brush are closed.

A brush 121 of the select switch is attached to one end of the select shaft 15, and an automatic return device 22 is attached to the end of the select shaft 15. This urges the locking ball 20 side of the change lever to face the central neutral position N2. are doing. That is, a cam 221 is integrally attached to the select shaft 15, and a roller 2 that is pressed in the direction of the center line of the select shaft 15 by a spring 223 is attached to the cam surface 222 of the cam 221.
24 are in contact with each other. This roller 224 is the base frame 2
It is pivoted to a roller mounting member 225 that is guided on the third side, and the roller can only move up and down. On the other hand, the central cam surface 222a of the cam surface 222 is formed closest to the select shaft 15, and the left and right surfaces thereof are formed to gradually move away from the select shaft 15. Therefore, the select shaft 15 is always connected to the roller 22.
4 is stabilized when it comes into contact with the central cam surface 222a, and at that time, the locking ball 20 on the change lever side is in the long groove 21.
5 is locked in the central hole 216 on top.

The moderation feeling generating casing 21 attached to such a command unit 10 changes to the gear shift position when the locking ball 20 engages with each engagement hole 214 when the change lever 11 is operated to move along the shift pattern. The lever 11 can be held and a sense of moderation can be given during operation. Moreover, three neutral positions N1 and N arranged in the selection direction A
2 and N3 are continuous on the bowl-shaped surface 213 with one long groove 215 that is linear in plan view, and the locking ball 20 that has entered there is in the selection direction A.
That sense of moderation is removed. Therefore, when the locking ball 20 enters the long groove 215, the change lever 11 is reliably acted upon by the automatic return device 22, and there is an advantage that it can automatically return to the predetermined central neutral position N2 from all neutral positions on the long groove. Moreover,
The center hole 21 is located only in this center neutral position N2.
6 is formed, which has the advantage that only this position can generate a sense of moderation in the selection direction A.

In the above-mentioned place, the automatic return device 22 is the roller 2
24 was pressed against the cam surface 222 by a spring 223, but instead of this, the roller is pressed by an air cylinder (not shown), and this air cylinder is equipped with an air control device that supplies high-pressure air only when receiving a neutral signal. May be installed. Furthermore, although the central hole 216 is formed in the long groove 215, this may be removed, and furthermore, although the specific neutral position is set at the center, it may be set at the end. In this case, the cam surface has a shape that gradually moves away from the select shaft from the end.

[Brief explanation of the drawing]

Figure 1 shows an example of a shift pattern, Figure 2 shows an example of a shift pattern.
The figure is a front view of a command unit equipped with a moderation sensation generating casing as an embodiment of the present invention, FIG. 3 is a sectional view taken along the line X-X of FIG. 2, and FIG. , FIG. 5 is a plan view of the moderation sensation generating casing, and FIG. 6 is a plan view of a conventional casing. DESCRIPTION OF SYMBOLS 10... Command unit, 11... Change lever, 20... Locking ball, 21... Moderation sensation generating casing, 213... Bowl-shaped surface, 214... Locking hole, 2
15... Long groove, A... Select direction, N1, N
2, N3...neutral position.

Claims (1)

[Scope of utility model registration request] A locking ball that elastically protrudes from a change lever that moves along the shift pattern is fitted in the moderation feeling generating casing of a shift command signal generating unit that has a shift pattern in which neutral positions are continuous on a line in the select direction. A recess for detachment is formed in the bowl-shaped surface of the moderation sensation generating casing, and among the recesses, recesses corresponding to all the neutral positions are continuously formed with uniform long grooves, and the locking ball is fitted into the same long grooves. A moderation feeling generating casing for a gear change command signal generating unit, characterized in that it is equipped with an automatic return device that automatically returns the change lever to a predetermined neutral position among all neutral positions on the long groove.