JPH08219266A - Shift lever device of automatic transmission - Google Patents

Abstract

PURPOSE: To provide a shift lever device of an automatic transmission where the attachment/detachment of a release button in a shift knob is facilitated, and the maintainabllity is improved. CONSTITUTION: A shift lever device is provided with a shifting button 22 arranged on a head part of a shift knob 21, a bezel 27 to slidably hold the button 22, an elastic piece 30 which is extended in the button pushing direction from a button body 29, a pawl part 31 which is formed on the tip of the elastic piece and abutted on the bezel 27, and a guide member 33 with a projected and tilted surface toward the pawl part 31 from the button body side, and the bezel is provided with an extension part 272 which is extended along the elastic piece 30 and a notch part 34 formed in the extension part. When the tilted surface of the guide member 33 to be fitted to the notch part 34 is pushed by a jig inserted from an annular clearance 8a) between the button body and the bezel, the shifting button 22 is unhooked from the shift knob.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lever device for an automatic transmission, and more particularly to a shift lever device for an automatic transmission having a shift knob at an upper end of the shift lever provided with a button for unlocking the shift lever.

[0002]

2. Description of the Related Art A main body of an automatic transmission mounted on a passenger car is arranged in an engine room, and a gear shift operation device on a driver's seat side is mechanically connected to the main body via a shift cable. This gear shift operation device on the driver's seat side is provided with a shift lever that is rotated by a driver's manual operation on a base frame supported by a body base, and a shift speed command according to the amount of rotation of the shift lever is issued to the main body of the automatic transmission. The gear train corresponding to the gear shift stage is meshed within the main body in accordance with the gear shift command. The shift lever of the gear shift operating device used in this way is provided with a shift knob at its upper end to facilitate grasping of the frequently operated shift lever and to provide a good operation feeling.

By the way, although the shift operating device can switch the shift lever to a desired shift position, it is necessary to prevent an erroneous operation such as accidentally shifting to a reverse gear or a parking gear via a neutral gear during forward travel. A shift lock device is provided. Moreover, in order to release the shift lock of the shift lock device, a shift button is often equipped with a release button that transmits a release operation force to a link system connected to the shift lock device. An example of an automobile shift knob having such a release button is disclosed in, for example, Japanese Utility Model Publication No. 5-24847. By the way, as shown in FIG. 9, this type of shift knob 1 is bolted to the upper end of the rod portion 4 of the shift lever.

Here, the knob body 2 is fixed by fastening the upper end of the rod portion 4 of the shift lever into the bottom of the accommodation hole 3 and bolting it to the upper end. The rod portion 4 has a pipe shape, and a rod 6 connected to a shift lock mechanism (not shown) is loosely fitted thereto, and an upper end of the rod 6 is integrally connected to a release button 7. A substantially cylindrical button holding member 8 whose main portion abuts the inner wall of the housing hole 3 is attached to the peripheral edge of the opening of the housing hole 3 formed in the center of the head of the shift knob 1, and the inside of the button holding member 8 is attached. A release button 7 is slidably provided on the.

The release button 7 is formed so as to close the opening of the accommodation hole 3, an elastic piece 10 extending downward from the peripheral edge of the head 9, and a protruding portion at the lower end of the elastic piece 10. , And a claw portion 11 that is locked to the downward annular edge of the button holding member 8. The button holding member 8 is urged upward by a spring (not shown) via the rod 6,
The claw portion 11 is locked to the button holding member 8 to prevent the release button 7 from coming off the shift knob 1.
The release button 7 of the shift knob 1 is easily pushed downward when the shift lock is released by the manual operation of the driver who performs the shift operation of the shift knob 1.

[0006]

By the way, in the shift knob 1 as shown in FIG. 9, the claw portion 11 of the release button 7 is provided.
However, once it reaches the position where it is locked to the downward annular edge of the button holding member 8, it is in the snap-fit state. Therefore, when the release button 7 is taken out from the shift knob 1, it is necessary to push a driver or the like into the gap between the release button 7 and the button holding member 8 and pry it off. At that time, the release button 7 or the button holding member 8 is required. It couldn't be removed without damaging part of it.

For this reason, when it is necessary to remove the shift knob 1 from the shift lever at the time of maintenance of the gear shift operating device, first, the release button 7 which is attached in a state of being fitted to the button holding member 8 is removed. Unless the release button 7 or the like is damaged, the shift knob 1 cannot be taken out from the shift lever, resulting in poor maintainability. An object of the present invention is to provide a shift lever device for an automatic transmission that facilitates attachment / detachment of a shift button in a shift knob and improves maintainability.

[0008]

In order to achieve the above-mentioned object, the invention of claim 1 is a shift lever device for an automatic transmission, and a shift knob arranged at the tip of the shift lever and a head portion of the shift knob. A shift button, a spring member that gives a reaction force to the pressing operation of the button, a button holding member that slidably holds the button and is housed in the knob head together with the button. When,
The shift button includes a button body, an elastic piece extending from the button body in a button pressing direction,
A claw portion formed at the tip of the elastic piece and abutted on the button holding member so that the biasing force of the spring member is carried by the button holding member; A guide member having an inclined surface that increases the amount of protrusion toward the side, and the button holding member is formed so as to extend along the elastic piece from an opening that surrounds the button body. And a cutout formed in the extension so that the guide member does not contact the extension, and the inclined surface of the guide member has the button body and the button body. It is characterized in that it is formed so as to be able to contact a jig inserted from between the opening and the opening.

According to a second aspect of the present invention, in the shift lever device for an automatic transmission according to the first aspect, the width of the notch is formed to be equal to the thickness of the guide member.

[0010]

According to the invention of claim 1, the shift button is provided on the head of the shift knob, the spring member applies a reaction force to the pressing operation of the button, and the button body of the shift button is pressed. In the direction of the elastic piece, a button holding member for slidably holding the button, a claw portion formed at the tip of the elastic piece and abutting the button holding member, and a claw portion from the elastic piece side. And a guide member with an inclined surface that increases toward the lower side, and the button holding member extends along the elastic piece from the opening that surrounds the button body. Since the jig inserted from between the button body and the opening is capable of contacting the inclined surface of the guide member, it is possible to fix the extending portion and the extending portion. By pushing the tool, the guide member and this Elastic piece and the pawl portion to be interlocked can be moved in the direction away from the button holding member can be released from the state locked the pawl portion to the button holding member.

According to the invention of claim 2, since the width of the notch of claim 1 is formed to be particularly equal to the thickness of the guide member, the gap between the guide member and the notch can be eliminated, The shift button integrated with the guide member can be prevented from being displaced relative to the button holding member.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The shift lever device for an automatic transmission shown in FIG. 1 is provided on a shift operating device for remotely operating an automatic transmission provided in an engine room of a passenger car (not shown) from a driver's seat. The gear shift operating device (not shown) is provided with an operation panel 16 having a shift groove 15 (see FIG. 8) formed in an upper portion of the main body, and the operation panel 16 has P (parking), R (reverse), N along the shift groove. (Neutral), D
A shift position display portion 17 that defines each position of automatic shifting such as (drive) is formed, and is switched to each shift position by a shift operation of the shift lever 20.

Here, the shift lever 20 is mechanically connected to a main body of an automatic transmission (not shown) through a shift cable (not shown), and a detent mechanism (not shown) provides a moderation feeling of switching movement to each shift position. It is equipped with a well-known mechanism that can. Shift lever 20
The shift knob 21 at the front end of is provided with a shift button 22 that is pressed to unlock the shift lock particularly when the gear is operated from the neutral stage to the reverse stage.

As shown in FIG. 1, the shift lever 20 has an upper portion formed by a pipe-shaped rod portion 201 and a solid rod 202 slidably inserted therein, and the upper end of the rod portion 201. A shift knob 21 is bolted to the shaft, and a shift button 22 is provided on the upper end of a solid rod 202.
Core portion 221 is integrally connected. The rod 20
At the lower end side of the spring 2, the rod 202 is provided upward, that is, a spring 3 that gives an elastic force as a reaction force to the pressing operation of the button.
5 are deployed. Moreover, a shift lock mechanism (not shown) is connected to the lower end of the rod 202, and the lock is released when the rod 202 is pressed downward against the elastic force of the spring 35.

The knob body 23 of the shift knob 21 is provided with a housing hole 24 in the center thereof, a screw portion at the upper end of the rod portion 201 is projected at the bottom portion thereof, and a bolt 25 is screwed into the screw portion to integrally connect with the rod portion 201. To be done. The accommodating hole 24 is the prepared hole 2
41 and the upper hole portion 242, the guide piece 26 of the shift button 22 is slidably inserted into the lower hole portion 241, and the upper hole portion 242 has a substantially cylindrical bezel 27 as a button holding member.
And the shift button 22 fitted therein is slidably inserted.

A substantially cylindrical bezel 2 as a button holding member
7 is made of synthetic resin. As shown in FIG. 2, the bezel 27 is formed so that a flange portion 271 surrounding the opening portion of the accommodation hole 24 and a portion below the flange portion 271, that is, extending from the opening portion along an elastic piece 30 described later. A cylindrical extension 272, a notch 34 formed in the extension 272 so that a guide member 33 described later does not contact the extension 272, and front and rear ends of the extension 272 (in FIG. 7). A locking claw 273 and a stop plate 274 extending from the (Y direction) side are provided.

As shown in FIG. 3, the locking claw 273 has an upper hole 2
The stopper plate 274 is formed to be engageable with the recess 28 formed on the inner wall of the housing 42, and is screwed to the wall surface of the accommodation hole 24. As shown in FIG. 5, the width T of the notch 34 is formed to be equal to or slightly larger than the width of the guide member 33 in the thickness direction. As a result, the gap t between the two is almost eliminated, and relative shift in the front-rear direction Y (see FIG. 8) between the shift button 22 side integrated with the guide member 33 and the bezel 27 can be reliably prevented.

The shift button 22 is made of synthetic resin. The shift button 22 has a button main body 29 shaped so as to close the opening portion of the accommodation hole 24, and the left and right end portions of FIG. Pair of elastic pieces 3 extending to the
0, and the bezel 2 is formed so as to project at the lower end of each elastic piece 30.
The claw portion 31 locked to the downward annular edge of the extension portion 272 of FIG.
And a guide member 33 protruding toward the vehicle width direction X (see FIG. 8), which is the direction of the claw portion outside the center of each elastic piece 30.

Here, the guide member 33 is in the form of a thick plate protrusion. The guide member 33 has an inclined surface 331 at its protruding end.
The inclined surface 331 has a shape in which the amount of protrusion increases toward the lower side. Especially, a part of the inclined surface 331 is
As shown in FIGS. 1 and 4, the thin plate-shaped jig 32 is opposed to the annular gap a between the shift button 22 and the bezel 27, whereby the inclined surface 331 is inserted from the upper portion of the annular gap a. Is formed so as to be able to abut. Although the inclined surface 331 is formed in a substantially linear shape, as shown in FIG. 7, it may be formed as a protruding arc surface 331 ′ or a concave arc surface 331 ″.

In assembling the shift knob 1, the shift lever device for such an automatic transmission is constructed such that first, the rod portion 201 and the bolt 25 are attached to the bottom portion of the accommodation hole 24 of the knob body 23.
Tighten and fix with. Next, the accommodation hole 2 of the knob body 23
4, the bezel 27 is fixed, the shift button 22 is fitted in the bezel 27, and the assembly is completed by pushing in until the claw portion 31 is locked to the downward annular edge of the extending portion 272 of the bezel 27. At this time, the claw portion 31 and the guide member 33 on the elastic piece 30 are once retracted and displaced to the center side of the accommodation hole, and then the claw portion 31 is engaged with the downward annular edge of the extending portion 272 and the guide member. 33 is fitted in the notch 34, and the shift button 22 is fitted in the bezel 27 without displacement.

As a result, the upward elastic force of the spring 35 is carried by the extending portion 272 of the bezel 27, and the shift button 22 is prevented from coming off the accommodation hole 24.

On the other hand, when disassembling the shift knob 1, first,
A metal bent plate-shaped jig 32 shown in FIG. 6 is used. The jig 32 used here is a metal long plate, and the left and right ends of the long plate sandwiching the central portion 322 are curved into a plane shape of an annular gap a between the shift button 22 and the bezel 27. . Next, bend the left and right ends of the long plate to insert the left and right insertion parts 3
21 is bent and formed. The length dimension of the central portion 322 is formed to be substantially equal to the distance in the front-rear direction Y of the annular gap a.

The left and right insertion portions 3 of the jig 32 as described above
21 is inserted into the annular gap a between the shift button 22 and the bezel 27, the inclined surface 3 of the projecting end of the guide member 33.
31 is pushed into the center of the accommodation hole 24. As a result, the claw portion 31 integrated with the guide member 33 is separated from the extending portion 272. As a result, the shift button 22 released from the engaged state with the extending portion 272 receives the elastic force of the spring 35 via the rod 202, moves upward, and opens the accommodation hole 24. At this time, the shift button 22 and the bezel 27 are not scratched at all, and can be reused as they are at the time of reassembling. After this, the bezel 27 is taken out from the accommodation hole 24, the bolt 25 is loosened, and the bolt 25 is removed from the rod portion 201, whereby the disassembly of the shift knob of the shift lever device of the automatic transmission can be completed.

As described above, in the shift lever device of FIG. 1, the spring 35 that applies a reaction force to the pressing operation of the shift button 22 and the extending portion of the bezel 27 that holds the button 22 slidably. Notch 34 formed by notch 272
And a guide member 33 that extends from the button 22 and is locked to the bezel 27, a claw portion 31 at the tip thereof, and a guide member 33 having an inclined surface 331.
A notch 34 formed by notching the extending portion 272 of
The jig 32 inserted from the annular gap a between the button body 29 and the opening is configured to be capable of contacting the inclined surface 331 of the guide member 33 fitted into the notch 34.

Therefore, when the jig 32 is pushed into the annular gap a, the inclined surface 331 is pushed and the guide member 33 is pushed.
At the same time, the elastic piece 30 and the claw portion 31 can be released from the state of being locked by the bezel 27, and the bezel 27 and the shift button 2
2 can be easily detached from the shift knob 23 by using the elastic force of the spring 35 without damaging 2, the release button inside the shift knob can be easily attached and detached, and maintainability can be improved, and the bezel 27 and the shift button 22 can be reused. You can also do it. In particular, since the width T of the notch 34 is formed to be equal to the thickness of the guide member, it is possible to reliably prevent the shift of the shift button 22 side integrated with the guide member 33 and the bezel 27 in the front-rear direction Y, The quality of the device can be improved.

[0026]

As described above, according to the invention of claim 1, the shift button disposed on the head of the shift knob, the spring member for applying a reaction force to the pressing operation of the button, and the shift button. An elastic piece extending from the button body in the button pressing direction of the button, a button holding member for slidably holding the button, and a claw portion formed at the tip of the elastic piece and abutting the button holding member. And a guide member having an inclined surface that protrudes from the elastic piece side toward the claw portion and increases toward the lower side, and the button holding member has an opening portion surrounding the button body and the opening portion. A jig inserted from between the button body and the opening, the extending portion being formed along the elastic piece from the extending portion, and the notch portion being formed by cutting out the extending portion. Can be contacted with the Can be moved in a direction in which the guide member and the elastic piece and the pawl portion in conjunction with this is detached from the button holding member can be released from the state locked the pawl portion to the button holding member. Therefore, the maintainability of the shift knob having the shift button can be improved, and the button holding member and the shift button can be reused.

According to the second aspect of the present invention, in particular, since the width of the notch portion is formed to be equal to the thickness of the guide member, the gap between the guide member and the notch portion can be eliminated, and the guide member and the guide member can be integrated. The shift button can be prevented from being displaced relative to the button holding member, and the quality of the device can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a shift lever device of an automatic transmission according to an embodiment of the present invention.

FIG. 2 is a perspective view of a shift button and a bezel of the shift lever device of the automatic transmission of FIG.

3 is a sectional view of a shift lever device of the automatic transmission of FIG.

4 is a partially enlarged cross-sectional view showing a deformed state of an elastic piece of the shift lever device of the automatic transmission of FIG.

FIG. 5 is a diagram illustrating an engagement relationship between a notch portion and a guide member of the shift lever device of the automatic transmission of FIG.

FIG. 6 is a perspective view of a jig that can be used to deform an elastic piece according to the present invention.

FIG. 7 is a diagram illustrating a modified example of the shape of the inclined surface of the guide member in FIG.

FIG. 8 is a schematic plan view of a shift lever device of the automatic transmission of FIG.

FIG. 9 is a cross-sectional view of a conventional device. 20 shift lever 201 rod part 202 rod 21 shift knob 22 shift button 23 knob body 24 accommodating hole 27 bezel 272 extension part 273 locking claw 29 button body 30 elastic piece 31 claw part 32 jig 33 guide member 331 inclined surface 34 notch Part 35 spring a annular gap

Claims (2)

[Claims] 1. A shift lever device for an automatic transmission, wherein a shift knob arranged at the tip of the shift lever, a shift button arranged on the head of the shift knob, and a reaction force against a pressing operation of the button. And a button holding member that holds the button slidably and is housed in the knob head together with the button. The shift button includes a button body and a button body. An elastic piece extending in the pressing direction, a claw portion formed at the tip of the elastic piece and abutting against the button holding member so that the urging force of the spring member is taken by the button holding member; And a guide member having an inclined surface that protrudes from the main body side toward the claw portion and increases toward the lower side, and the button holding member surrounds the button main body. Opening, an extending portion formed along the elastic piece from the opening, and a notch formed in the extending portion so that the guide member does not contact the extending portion. A shift lever device for an automatic transmission, characterized in that the inclined surface of the guide member is formed so as to be capable of contacting a jig inserted between the button body and the opening. 2. The shift lever device for an automatic transmission according to claim 1, wherein the width of the notch is formed to be equal to the thickness of the guide member. .