JPS6136817A - Shift level device of speed change gear - Google Patents

Abstract

PURPOSE:To secure the accurate projected length for fixture of a shift lever by fitting a lock pin containing a lock release button and energized elastically into a recess part formed at the outer circumference of the shift lever which slides within a tubular shift arm. CONSTITUTION:When the upper part of a lock release button 16 is pressed left, a lock pin 18 moves right with release of the engagement with a recess part 3. Thus a shift lever 1 is moved down by is empty weight and a spring 20 and stored into a shift arm 10. When the lever 1 is moved up, the tip of the pin 18 gets on a sloping surface 6 formed at the outer circumference of the lever 1. Then the pin 18 is automatically set into the part 3 when the lever 1 is pulled up further. The lever 1 is locked at a protected position. The pin 18 is energized in the interlocking direction with the part 3 by the pin 18 and a spring 19. Thus the pin 18 never gets out of the part 3 despite the vibrations or shock.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a shift lever device for a transmission installed in a driver's cab, and more particularly to a shift lever device in which the shift lever can be stored in order to facilitate transfer from the driver's seat to the passenger seat. .

PRIOR ART AND THEIR PROBLEMS Conventionally, this type of retractable shift lever device, as disclosed in Japanese Utility Model Application Publication No. 105128/1980, has a shift lever that is divided into two parts (up and down) and is rotatably supported at a connecting part. It is known that the shift lever is configured to be in a straight state when in use and folded when not in use by sliding a fixing member that fits over the connecting portion.

However, in this case, if there is a protrusion in the folding direction of the shift lever, there is a problem that the shift lever and the protrusion interfere with each other when the shift lever is folded.

In addition, as another method, as in Japanese Utility Model Application Publication No. 49-59218, the lower part of the shift lever is divided into upper and lower halves into a tubular shape, and the upper part is shaped into a bar, so that the upper shift lever can be freely inserted into the lower shift lever. At the same time, by tightening the tightening member screwed onto the upper outer periphery of the lower shift lever,
It is also known that the protruding length of the upper shift lever can be adjusted.

In this case, there is no problem of interference with protrusions as in the above-mentioned folding method, but there is a problem that if the tightening member becomes loose during use, the upper shift lever will fall into the lower shift lever. .

Purpose of the Invention The present invention has been made in view of such conventional problems.
The object of the present invention is to provide a shift lever device for a transmission that can securely fix the shift lever in a protruding position during use and can be easily stored.

Structure of the Invention In order to achieve the above object, the present invention includes a tubular shift arm, a shift lever slidably inserted into the shift 1 arm, and a shift lever provided at the upper end of the shift arm. - a lock pin that engages with a recess formed in the lower outer periphery of the shift lever to lock the shift lever in the protruding position; a spring that biases the lock bin in the direction of engagement with the recess; and a spring that urges the lock bin in the direction of engagement with the recess; The shift lever can be stored in the shift arm by operating the lock release button in the direction in which the shift lever is released and removing the lock bin from the recess.

In the explanatory drawings of the embodiment, 1 is a rod-shaped shift lever having a knob 2 at its upper end; 110 is a tubular shift arm;
The lower part of the shift arm 10 is slidably inserted into the shift arm 10. A locking mechanism 11 shown in FIGS. 2 and 3 is provided at the upper end of the shift arm 10. As shown in FIGS. The lock mechanism 11 includes a lock body 12 fixed to the upper end of the shift arm 10, a lock release button 16 pivotally attached to the side of the lock body 12 via a pin 15, and a lower end of the lock release button 16. A lock pin 18 is connected to the lock pin 18 via a pin 17, and a spring 19 is used to bias the lock release button and the lock pin. The lock pin 18 is thrust into engagement with a recess 3 formed in the lower side surface of the shift lever 1 by the biasing force of a spring 19, whereby the shift lever 1 is reliably locked in the protruding position.

A guide groove 4 is formed in the vertical direction on the side surface of the shift lever 1, and a protrusion 14 formed on the inner edge of the upper hole 13 of the lock body 12 engages with this guide groove 4.
The shift lever 1 is slidably guided only in the vertical direction, and the shift lever 1 is prevented from coming off upward. Further, a stepped portion 5 is formed at the lower part of the shift lever 1, and a spring 20 is inserted in a compressed state between the upper surface of the stepped portion 5 and the lower surface of the upper hole 13 of the lock body 12, so that the shift lever 1 is always pushed downward, so that the tip of the lock bin 18 is engaged with the recess 3 without play. An inclined surface 6 is formed on the outer peripheral surface of the shift lever 1 and above the recess 3, and when the shift lever 1 is pulled up from the retracted state, the lock bin 18 rides on the inclined surface 6 and automatically moves into the recess 3. It is designed to engage.

Note that 21 is a boot provided between the lower end of the lock body 12 and the floor 22, and the upper end of this boot 21 is fixed to the lower surface of the lock body 12 with a locking nut 23. Further, 24 is a waterproof/dustproof camp attached to the lower end opening of the shift arm 10, and this cap 2
4 is formed with a hole 25 for venting air or water, allowing the shift lever 1 to slide smoothly within the shift arm 10.

Here, to explain the operation of the locking mechanism 11 having the above configuration, first, when the upper part of the lock release button 16 is pressed to the left from the state shown in FIG. is removed, and the shift lever 1 is moved downward by its own weight and the spring 20 and stored in the shift arm 10 (the position of the knob 2 when stored is shown by a chain line in FIG. 1). Furthermore, when the shift lever 1 is pulled up from the retracted state, the tip of the lock bin 18 rides on the inclined surface 6 formed on the outer peripheral surface of the shift lever 1, and by further pulling up the shift lever 1, the lock bin 18 automatically engages with the recess 3. Then, the shift lever 1 is locked at the extended position. In the locked state, the lock pin 18 is biased by the spring 19 in the direction of engagement with the recess 3, so even if vibration or impact is applied, the lock pin 18 will not move into the recess 3.
The shift lever 1 does not fall into the shift arm 10 during use.

As the driver operates the knob 2, the shift arm 10 performs a shift operation (left/right direction in FIG. 1) and a select operation (
(left and right directions in Fig. 4). That is, 3
0 is a fixed bracket fixed to the lower surface of the floor 22, and a movable bracket 32 is rotatably attached to this fixed bracket 30 via a bolt 31 that serves as the center of rotation during shifting. A support shaft 33, which serves as a center of rotation during selection, is rotatably mounted on the movable bracket 32, and this support shaft 33 is fixed to the side surface of the shift arm 10. In addition, the movable bracket 32 includes a shift arm 3.
4 are connected to each other, and this arm 34 is connected to a transmission (not shown) via a shift cable 35. On the other hand, a selection arm 36 is fixed to the side surface of the shift arm 10 in a direction perpendicular to the support shaft 33, and this arm 36 is connected to a transmission (not shown) via a selection cable 37.

In the above embodiment, a spring is provided between the lock body 12 and the stepped portion 5 of the shift lever 1 in order to stably hold the shift lever 1 in the protruding position and to move the shift lever 1 smoothly downward during storage. Although the spring 20 is provided, this spring 20 is not essential to the present invention. However, if this spring 20 is not provided, it is necessary to increase the precision of the fit between the lock bin 18 and the recess 3 in order to prevent the shift lever 1 from shaking; however, if the spring 20 is provided, Even if the fitting precision between the lock bin 18 and the recess 3 is low, the shift lever 1 can be prevented from shaking.

Effects of the Invention As is clear from the above explanation, according to the present invention, a lock pin is engaged with a recess formed on the outer periphery of the lower part of the shift lever, and the lock pin is biased by a spring in the direction of engagement with the recess. Therefore, the shift lever can be stably held in the protruding position without the lock pin and the recess coming off during use. Moreover, when storing the shift lever, the shift lever can be stored in the shift arm simply by operating the lock release button, and the retracting operation can be carried out in one click.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view of a shift lever device according to the present invention, FIG. 2 is a partially enlarged view thereof, and FIG.
4 is a right side view of FIG. 1. ■...Shift lever 13...Recess, 6...Slope, 10...Shift arm, 11...Lock mechanism, 1
6...Lock release button, 18...Lock bin, 1
9...Spring.

Claims (1)

[Claims] (1) A tubular shift arm, a shift lever slidably inserted into the shift arm, and a recess provided at the upper end of the shift arm and engaged with a recess formed on the lower outer periphery of the shift lever. a lock pin that locks the shift lever in the protruding position, a spring that biases the lock pin in the direction of engagement with the recess, and a lock release button that operates the lock pin in the direction of disengaging the shift lever from the recess. A shift lever device for a transmission, characterized in that the shift lever can be stored in a shift arm by operating the lock release button and removing the lock pin from the recess.