JP3156651B2 - Shift lever device for automatic transmission - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a shift lever device for an automatic transmission having a detent pin and a detent plate for restricting the operation of a shift lever.

[0002]

2. Description of the Related Art Various shift lever devices for automatic transmissions having a detent pin and a detent plate for restricting the operation of the shift lever have been conventionally proposed (for example, see Japanese Utility Model Publication No. 6-32439). A conventional shift lever device for an automatic transmission will be schematically described with reference to FIG. FIG. 6 is a rear view showing a schematic configuration of a conventional shift lever device for an automatic transmission. The state shown in FIG. 6 (a) is for the right handle, and the state shown in FIG. 6 (b) is for the right handle.

[0006] As shown in FIG. 6 (a), a bracket 2 is fixed to the driver's seat side (right side in the figure) of the base 1 on the floor side of the vehicle. Has a detent plate 3 fixed thereto. A rotating block 4 is rotatably supported on the lower part of the bracket 2 and the detent plate 3 around a central axis extending in the vehicle width direction, and a lower end of a shift lever 5 is fixed to the rotating block 4. On the other hand, an arm 6 connected to a transmission (not shown) is fixed to the rotating block 4. That is, by rotating the shift lever 5 in the front-rear direction of the vehicle, a shift operation by a transmission (not shown) is performed via the rotation block 4 and the arm 6.

The detent plate 3 has a detent groove 7
The shift lever 5 is provided with a detent pin 8 which engages with the detent groove 7 by a spring force. The detent groove 7 automatically shifts the gear position according to the shift position of a transmission (not shown), for example, a parking position (P range), a reverse position (R range), a neutral position (N range), or a running state of the vehicle. The detent pin 8 is formed in a predetermined groove shape in accordance with the drive position (D range) for selection, the 3-speed fixed position (3 range), the 2-speed fixed position (2 range), and the 1-speed fixed position (L range). Engages with the detent groove 7, thereby restricting the operation of the shift lever 5 at a predetermined position.

[0005] The detent pin 8 of the shift lever 5 is moved downward against the urging force of the spring by pushing a push button 9 disposed on the driver side of the shift lever knob 10, and the detent pin 8 is in contact with the detent groove 7. The engagement is released, and the shift lever 5 becomes rotatable. That is, when the driver operates the shift lever 5, the push button 9 is pushed in to release the engagement of the detent pin 8 with the detent groove 7. Reference numeral 11 in the drawing denotes a shift panel provided with an operation position display section for the shift lever 5.

The shift lever device for an automatic transmission shown in FIG. 6 (a) is a device for a right-hand drive. In the case of a shift lever device for an automatic transmission for a left-hand drive, as shown in FIG. 6B, a bracket 12 is fixed to the left side (driver's seat side) of the base 1 on the floor side of the vehicle in the drawing. The detent plate 13 is fixed to the right side (passenger seat side) of the base 1 in the drawing. Then, a detent pin 15 engaged with the detent groove 14
Is provided on the right side of the shift lever 16 in the drawing, and a shift lever knob 18 provided with a push button 17 on the left side in the drawing is attached to the shift lever 14. In other words, the shift lever device for the automatic transmission for the left handle is composed of components for the right handle and inverted.

[0007]

The conventional shift lever device for an automatic transmission is composed of a plurality of parts for the right handle and for the left handle, and it is necessary to set the parts for each handle. Was. Also, bracket 2,
Since the apparatus is constituted by an assembly of separate parts such as the detent plates 12 and the detent plates 3 and 13, the number of assembling steps is increased. For this reason, the number of parts has increased, and the manufacturing cost, management cost, and assembly cost of the parts have been increased.

The present invention has been made in view of the above circumstances, and has as its object to provide a shift lever device for an automatic transmission in which parts can be shared for a right handle and a left handle.

[0009]

In order to achieve the above object, according to the present invention, a set of detent plates is provided on a base with a shift lever interposed therebetween so that shift levers corresponding to left and right handles can be mounted. The pin controls the operation of the shift lever by engaging with either one of the detent grooves of the set of detent plates, and the set of detent plates is integrally formed of resin with the base. The base and detent plate are shared between the left and right handle.

According to a second aspect of the present invention, the shift lever is disposed on the base plate at an angle, and the shift lever can be shared by the right handle and the left handle. At this time,
By inclining the engagement surface of the detent groove with the detent pin according to the inclination of the shift lever, the movement of the detent pin can be made smooth.

According to a third aspect of the present invention, a first hole and a second hole are respectively formed in a support that is sandwiched between a pair of detent plates and rotatably supports a shift lever.
The shift lever is inserted into the first hole when using one of the detent plates, and the shift lever is inserted into the second hole when using the other of the detent plates, and the shift lever is replaced. Parts can be shared for the right handle and the left handle.

Further, according to the present invention, a shift lock cam is provided at a substantially intermediate position between a pair of detent plates.
A shift lock cam engaging pin engageable with the shift lock cam is provided on the shift lever side on the opposite side of the detent pin, and the position of the shift lock cam is shared.

[0013]

FIG. 1 is a rear view showing the structure of a shift lever device for an automatic transmission according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. III-II in 2
The arrow I is shown. The shift lever device for an automatic transmission in the state shown in FIGS. 1 to 3 shows a state applied to a right-hand drive. FIG. 4 shows a rear view of a state in which the shift lever is mounted for the left handle.

A base 2 fixed to the floor of a vehicle (not shown)
1 is provided, and a pair of plates 22 is provided on the side of the base 21 (left and right in FIGS. 1 and 2). Each of the set of plates 22 is formed with detent grooves 23 and 24 having different shapes from each other.
5, 26. 1 and 2, a detent groove 23 for a right handle is formed in a detent plate 25 on the right side, and a detent groove 24 for a left handle is formed in a detent plate 26 on the left side in FIGS.

Therefore, the part where the base 21 and the detent plates 25 and 26 are integrated can be shared for the right handle and the left handle, and the number of parts is reduced.

A pair of support members 27, 2
8 is provided, and a rotating shaft 29 that rotates around a central axis extending in the vehicle width direction over the supports 27 and 28 is supported.
The lower end of a shift lever 30 is fixed to a substantially central portion in the width direction of the rotating shaft 29, and the shift lever 30 is rotatable in the front-rear direction of the vehicle. An arm 31 connected to a transmission (not shown) is fixed to the rotating shaft 29.

That is, by rotating the shift lever 30 in the longitudinal direction of the vehicle, the rotation shaft 29 and the arm 31 are rotated.
A speed change operation by a speed change device (not shown) is performed via the. The lower end of the shift lever 30 and the rotating shaft 29 can be fixed by various methods.
For example, the outer peripheral surfaces may be fixed by welding.

As shown in FIG. 2 and FIG.
1, a base end of a leaf spring 32 is fixed.
An engaging portion 33 is formed on the tip side of the. A groove plate 34 is fixed to the base 21 side, and an engaging portion 33 of a leaf spring 32 is biased and abuts one of the seven concave portions 35 of the groove plate 34. The concave portion 35 is provided at a shift position of a transmission (not shown) such as a parking position (hereinafter referred to as a P range), a reverse position (hereinafter referred to as an R range), a neutral position (hereinafter referred to as an N range), and a running state of the vehicle. A drive position (hereinafter referred to as a D range) for automatically selecting a shift speed in accordance with the speed, and an automatic shift (hereinafter referred to as 3
The range is formed in accordance with automatic shifting from first to second speed (hereinafter referred to as two ranges) and a first speed fixed position (hereinafter referred to as L range).

That is, by the rotation operation of the shift lever 30, the engaging portion 33 of the leaf spring 32 is
5 so as to give a sense of moderation to the rotation operation of the shift lever 30.

The shift lever 30 is arranged to be inclined toward the detent plate 25 on the right side in FIGS. 1 and 2, and the shift lever 30 is provided with a detent pin 36 urged upward by a spring (not shown). . The detent pin 36 is engaged with the detent groove 23 by being urged upward by a spring (not shown). The contact surface of the detent groove 23 with the detent pin 36 is formed to be inclined so as to be parallel to the detent pin 36 according to the inclination of the shift lever 30.

Since the shift lever 30 is inclined and fixed to the rotating shaft 29, the shift lever 30 is inverted and inclined in the opposite direction as shown in FIG. The shift lever 30 can be shared. Also in this case, since the contact surface of the detent groove 24 with the detent pin 36 is inclined, the movement of the detent pin 36 becomes smooth.

The detent groove 23 (or 24)
Are formed in a predetermined groove shape in accordance with a shift position of a transmission (not shown), for example, a P range, an R range, an N range, a D range, a 3 range, a 2 range, and an L range. (Or 24), the operation of the shift lever 30 is regulated at a predetermined position.

The detent pin 36 of the shift lever 30
Is moved downward against the urging force of a spring via a cam 39 by pushing a push button (not shown) provided on a shift lever knob (not shown).
3 is released, and the shift lever 30 becomes rotatable. That is, when the driver operates the shift lever 30, the push button is pushed in and the detent groove 23 is pressed.
Of the detent pin 36 is released.

On the other hand, a set of detent plates 25 and 2
6, a shift lock cam 37 is provided, and the shift lever 30 on the opposite side of the detent pin 36 is provided.
Is provided with a shift lock cam engagement pin 38 which can be engaged with the shift lock cam 37. A connection portion 40 is provided on the shift lock cam 37 on the left side in the figure, and a brake device and a key cylinder device (not shown) are connected to the connection portion 40 via a control box or the like.

Since the shift lock cam 37 is disposed at a substantially intermediate position between the pair of detent plates 25 and 26, a shift lock cam 4 for a left handle, which will be described later.
1 can be shared with the shift lock cam 37.

When the brake pedal is depressed while the shift lever 30 is being operated in the P range, the engagement of the shift lock cam 37 is released and the operation of the shift lever 30 is permitted. Also, when the shift lever 30
When being operated in a place other than the range, the rotation of the shift lock cam 37 restricts the rotation of the key of the key cylinder device.

The front and rear portions of the pair of detent plates 25 and 26 are connected by a frame member 38, and the detent plate 2
On the upper surfaces of the reference numerals 5, 26, the identification characters of the operation positions, that is,
R, N, D, 3, 2, and L are each formed in an embossed state. Base 21, detent plates 25, 2
6. The support members 27 and 28 and the frame member 38 are integrally formed in a box shape with resin, and the identification characters are formed at the same time as molding.

Since the front and rear portions of the detent plates 25 and 26 are connected by the frame member 38 to form a box, the rigidity is improved. Further, by forming the identification characters, the position at the time of assembling the shift lever 30 can be easily identified.

The state shown in FIGS. 1 to 3 is a shift lever device for the right handle. In the case of a shift lever device for the left handle, as shown in FIG.
0 and the shift lever 30
Is fixed to the rotating shaft 29 by inclining to the left in the figure. As a result, the shift lever 30 is disposed to be inclined toward the detent plate 26 on the left side in the drawing, and engages with the detent groove 24 when the detent pin 36 is urged upward by a spring (not shown). At this time, the shift lock cam 4
1 has the same mounting position as the shift lock cam 37 described above, and is disposed such that the connecting portion 42 is on the right side.

Therefore, in the shift lever device described above,
By inverting and fixing the shift lever 30, the shift lock cams 37, 41 for the right handle and the left handle are provided.
Except for, all parts can be shared. For this reason,
The shift lever device for the right handle and the left handle can be configured with a very small number of parts, and the manufacturing cost, management cost, and assembly cost of the parts can be reduced.

By the way, a set of detent plates 2
The shapes of the detent grooves 23 and 24 are different from each other.

For example, as shown in FIG. 3, the detent groove 23 for the right handle is shifted from the N range to the D range and
No step is formed in the groove corresponding to the range.
For this reason, the detent pin 36 becomes movable from the N range to the 3 range, and the shift lever 30 can be rotated without operating the push button.

Further, a detent groove 24 for the left handle is provided.
Has no steps formed in the grooves corresponding to the N range to the D range.
a is formed. For this reason, the detent pin 36 is movable between the N range and the D range, and the shift lever 30 can be rotated without operating the push button. However, the push button is operated from the D range to the 3 range. Then, unless the detent pin 36 is moved, the shift lever 30 cannot be rotated.

As described above, by forming the detent groove 23 for the right handle and the detent groove 24 for the left handle in different shapes, it is possible to provide a transmission geared to various market requirements. In addition, the detent groove 2 for the right handle
The shape of the detent groove 3 and the left handle detent groove 24 is not limited to the above-mentioned shape, but can be set to any shape, and the shapes of the detent grooves 23 and 24 can be made the same.

Another embodiment of the present invention will be described with reference to FIG. FIG. 5 is a rear view showing a schematic configuration of a shift lever device for an automatic transmission according to another embodiment of the present invention, in which the state of FIG. The state shown in FIG. 5B is a state applied to the left handle. Note that the same members as those shown in FIGS. 1 to 3 are denoted by the same reference numerals, and redundant description is omitted.

A pair of plates 22 is provided on the side of the base 21 (left and right in FIG. 5) of the vehicle.
Are respectively formed with detent grooves 23 for the right handle and detent grooves 24 for the left handle having different shapes to form detent plates 25 and 26.
A rotation block 51 as a support is rotatably supported by a pair of detent plates 25 and 26 around a central axis extending in the vehicle width direction. The arm 31 is connected to the rotation block 51, and a rotation operation by a transmission (not shown) is performed by the rotation of the rotation block 51.

The rotation block 51 is provided with a first hole 52 and a second hole 53, and the first hole 52 and the second hole 53 are provided.
, The lower end of the shift lever 30 is inserted and fixed. When one of the detent plates 25 is used, the lower end of the shift lever 30 is inserted and fixed in the first hole 52, the shift lever 30 is arranged to be inclined toward the detent plate 25, and the detent pin 36 is inserted into the detent groove. 23. When the other detent plate 26 is used, the lower end of the shift lever 30 is inserted and fixed in the second hole 53, the shift lever 30 is arranged to be inclined toward the detent plate 26, and the detent pin 36 is inserted into the detent groove. 24.

Therefore, the shift lever 30 is connected to the first hole 52
The shift lever device can be shared for the right handle and the left handle only by replacing the second lever 53 with the second hole 53. Therefore, the number of parts and the number of assembling steps are significantly reduced.

[0039]

According to the first aspect of the present invention, a set of detent plates is provided on a base with the shift lever interposed therebetween, so that the shift levers corresponding to the left and right handles can be mounted, and the detent pins have one set of detent plates. By engaging with either one of the detent grooves, the operation of the shift lever is restricted, and a pair of detent plates are integrally formed of resin together with the base, so the base and detent for the right handle and the left handle Plates can be shared. As a result, the number of parts and the number of assembling steps are significantly reduced, and the cost can be reduced.

According to the second aspect of the present invention, since the shift lever is disposed on the base at an angle, the shift lever can be shared by the right handle and the left handle, and the number of parts can be further reduced. .

According to a third aspect of the present invention, a first hole and a second hole are formed in a support that is sandwiched between a pair of detent plates and rotatably supports a shift lever. When using one of the detent plates,
The shift lever is inserted into the hole of, and the shift lever is inserted into the second hole when using the other of the detent plate, so by simply changing the shift lever, the parts can be shared between the right handle and the left handle Can be achieved.
As a result, the number of assembly steps can be further reduced, and the cost can be significantly reduced.

Further, according to a fourth aspect of the present invention, a shift lock cam is disposed at a substantially intermediate position between a pair of detent plates, and a shift lock cam engaging pin engageable with the shift lock cam is provided. Since the projection is provided on the shift lever side opposite to the detent pin, the position of the shift lock cam can be shared.

[Brief description of the drawings]

FIG. 1 is a rear view illustrating a configuration of a shift lever device for an automatic transmission according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a view taken along line III-III in FIG. 2;

FIG. 4 is a rear view of a state in which a shift lever is attached to a left handle.

FIG. 5 is a rear view showing a schematic configuration of a shift lever device for an automatic transmission according to another embodiment of the present invention.

FIG. 6 is a rear view showing a schematic configuration of a conventional shift lever device for an automatic transmission.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Base 22 Plate 23, 24 Detent groove 25, 26 Detent plate 27, 28 Support body 29 Rotation axis 30 Shift lever 31 Arm 36 Detent pin 37, 41 Shift lock cam 51 Rotation block 52 First hole 53 Second hole

Claims (4)

(57) [Claims] 1. A shift lever device for an automatic transmission, comprising: a shift lever for performing a shift operation supported on a base; and a detent pin and a detent plate for restricting the operation of the shift lever. A set of plates is provided on the base, and a detent groove is formed in each of the set of plates to form the detent plate in which the shift levers corresponding to left and right handles can be mounted. The operation of the shift lever is restricted by engaging with one of the detent grooves of the detent plate,
The shift lever device for an automatic transmission, wherein the set of detent plates is integrally formed of resin together with the base. 2. The shift lever device for an automatic transmission according to claim 1, wherein the shift lever is disposed on the base so as to be inclined with respect to a vertical line. 3. The detent plate according to claim 2, wherein a support for rotatably supporting the shift lever is sandwiched between the pair of detent plates, and the shift lever is inserted when one of the detent plates is used. A first hole to be formed in the support, and a second hole into which the shift lever is inserted when the other of the detent plates is used, is formed in the support. Lever device. 4. A shift lock cam according to claim 1, wherein a shift lock cam is disposed at a substantially intermediate position between said pair of detent plates, and said shift lock cam engaging pin is engageable with said shift lock cam. A shift lever device for an automatic transmission, wherein the shift lever device protrudes from the shift lever side on a side opposite to a detent pin.