JPH09226399A - Automatic transmission operation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize an automatic transmission operation device by eliminating a trouble of damaging a peninsular part formed of both shift grooves of an indicator furnished with the shift groove for an A/T mode and the shift groove for an M/T mode by a load at the time of oscillating operation of a shift lever. SOLUTION: An automatic transmission operation device is constituted to cut off a shift lever main body 18 from a changeover lever 16 by revolving it in the left and right direction and to change an A/T mode to an M/T mode and vice versa. In this case, a hooked stopper lever 29 to make contact with an inner surface side of a side wall part 51 of a base bracket 1 at the time when the shift lever main body 18 is in a shift groove for the A/T mode and to project outward from opening parts 52, 53 provided open on the side wall part 51 of the base bracket 1 and to make contact with an outer surface of its upper end side at the time when the shift lever main body 18 is in the shift groove for the M/T mode is provided on the shift lever main body 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic transmission operating device (shift lever device) having both an A / T mode (automatic shift mode) and an M / T mode (manual shift mode) of an automobile.

[0002]

2. Description of the Related Art An automatic transmission operating device for an automobile operates a automatic transmission by swinging a shift lever in a forward and backward direction to select a specific shift mode. Therefore, from A / T mode to M
There is provided a device capable of easily and appropriately switching to the / T mode (Japanese Patent Laid-Open No. 7-3290).
2, JP-A-7-32903, JP-A-7-32904, and JP-A-7-35224).

In this automatic transmission operating device, a base bracket and an indicator attached to the base bracket are provided with a shift groove for an A / T mode as a gate with which a shift lever body pivotally supported by a base bracket fixed to a vehicle body is engaged. M /
The shift groove for the T mode is formed in parallel, and the shift groove of the shift lever body is formed between the shift grooves so that the shift groove is formed in a substantially H shape.
The shift lever main body is pivotally supported by the base bracket so that the shift lever main body can be swung in the front-rear direction of the vehicle, and can be swung in the left-right direction of the vehicle. Similarly to the above, the base bracket is coaxially supported to be swingable in the front-rear direction of the vehicle body. One end of the shift cable or rod is connected to the switching lever, and the other end of the shift cable or rod is connected to the automatic transmission.

When the shift lever main body is in the A / T mode shift groove, the end portion of the position pin that moves up and down by the operation of the push button provided on the upper portion of the shift lever main body is provided on the side wall portion of the base bracket. A shift lever that engages with the detent notch and that is rotatably supported by the shaft on one side of the shift lever main body in the front-rear direction is fitted into an opening formed in the shift lever. The protrusion of the main body rotates integrally with the shift lever main body, and the shift lever main body is M / T
When in the mode shift groove, the protrusion of the shift lever main body is disengaged from the opening of the switching lever, and only the shift lever main body is rotated in the front-rear direction to activate the electrical switch for acceleration / deceleration.

[0005]

However, according to the automatic transmission operating device as described above, as shown in FIG. 6 (A), the A / T in the base bracket 1 and the indicator (not shown) attached to it is not shown. Mode shift groove 2 and M
Between the / T mode shift groove 3 are formed protruding peninsula portions 4 and 4 facing each other.

Therefore, when switching from the A / T mode to the M / T mode, the shift lever body 5 is pivotally operated in the front-rear direction of the vehicle body so that the shift groove 6 between the two peninsula portions 4 and 4 is accurately positioned. If the shift lever body 5 is not rotated to the left (or right) direction of the vehicle body after being positioned, the shift lever body 5
May impinge on the side surface of the peninsula part 4 to apply a load to the peninsula part 4 and cut it. Generally, the material of the indicator is synthetic resin, and recently, the base bracket 1 is also often made of synthetic resin, so that the strength of the peninsula portions 4, 4 becomes a problem.

In order to improve the strength of the peninsula part 4, FIG.
As shown in (B), since the width S of the peninsula portion 4 may be formed as large as possible, it is necessary to dispose the height h of the base bracket 1 or the indicator higher than the shaft 7 which is the rotation fulcrum of the shift lever body 5. was there. Therefore,
Since the height of the base bracket 1 and the indicator is inevitably high, the automatic transmission operating device of this type becomes large.

If the size is increased, the cost will be increased, and it will be against the recent reduction in weight and size of automobile parts. Furthermore, since the movement in the left-right direction on the knob attached to the upper portion of the shift lever main body 5 becomes large, there is a problem that the operation feeling deteriorates.

Therefore, the present invention prevents the risk of cutting off the peninsula portion in the shift groove of the indicator, thereby providing a downsized automatic transmission operating device.

[0010]

In an automatic transmission operating device according to the present invention, a shift lever main body rotatably supported in a front-rear direction via a shaft is supported by a base bracket fixed to a vehicle body for A / T mode. A position that is movably provided in the shift groove and the M / T mode shift groove. When the shift lever body is in the A / T mode shift groove, the position is moved up and down by operating the push button provided on the upper portion of the shift lever body. An end portion of the pin engages with a detent cutout portion provided on a side wall portion of the base bracket, and is rotatably supported by the shaft on one side portion of the shift lever main body in the front-rear direction, and a shift cable or The switching lever to which one end of the rod is connected is shifted by the protrusion formed on the shift lever body that fits into the opening formed in this switching lever. -When the shift lever body rotates together with the body and the shift lever body is in the M / T mode shift groove, the protrusion of the shift lever body comes out of the opening of the switching lever and only the shift lever body rotates in the front-back direction. In an automatic transmission operating device which operates an electric switch by means of an electric switch, when the shift lever main body is in the A / T mode shift groove, the shift lever main body is moved in the lateral direction of the vehicle body at an improper position not facing the shift groove. It is characterized in that a stopper portion, which comes into contact with the stopper lever when swung, is formed on the inner surface side of the side wall portion of the base bracket.

Therefore, if the shift lever body is rotated in the left-right direction at an improper position that does not face the shift groove, the stopper lever comes into contact with the inner surface of the side wall portion of the base bracket, particularly, the stopper portion. While the rotation of the shift lever body is prevented, the stopper lever contacts the outer surface of the side wall portion of the base bracket unless the shift lever rotated in the left-right direction is rotated at an appropriate position facing the transfer groove 6. Prevents rotation of the shift lever body.

Therefore, for example, even when the indicator is formed with a substantially H-shaped shift groove and a peninsular portion is provided, as in the prior art, no load is applied to the peninsular portion, and therefore the peninsular portion may be damaged. It will not occur.

As a result, the width of the peninsula portion can be made smaller, and the height and width of the base bracket can be made shorter, so that the automatic transmission operating device can be made smaller.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 4, a pair of hinge portions 12 are projectingly provided at the bottom of a base bracket 11 fixed to the floor surface of a vehicle body so as to face each other, and a shaft 13 supported between the hinge portions 12 penetrates a cylinder. A shift lever base portion 15 and a switching lever 16 are supported via a shaft 14 so as to be rotatable (swingable) in the vehicle front-rear direction.

The shift lever base 15 is fitted with bracket portions 18a, 18a of a shift lever main body 18 at both ends of a cylinder shaft 17 which is orthogonal to the cylinder shaft 14, and is inserted through a shaft 19 to prevent the nut 19a from coming off. By doing so, the shift lever main body 18 is pivotally supported so as to be rotatable in the lateral direction of the vehicle body. The shift lever body 18 includes shift grooves 23a to 23c formed in the top portion 11a of the base bracket 11, the buffer member 20, the light guide plate 21, and the indicator 22, respectively.
A knob 24 is attached to the upper end portion by penetrating 23 and extending upward.

Here, the shift groove 23 of the indicator 22
Has peninsula portions 22a, 22a having a substantially H shape as in the conventional case, and a transition groove 23c is formed between them, but the base bracket 11, the buffer member 20, and the shift grooves 23a to 23c of the light guide plate 21 are The left and right sides are substantially L-shaped. That is, the shift groove 2 of the indicator 22
Although 3 has a substantially H shape with no particular difference from the conventional one, with emphasis placed on the external appearance, no peninsular portion is formed in the shift grooves 23a to 23c which cannot be seen from the outside. Two crossed slide plates 22b and 22c (see FIGS. 2 and 3) through which the shift lever body 18 penetrates are slidably inserted into the indicator 22.

The shift lever base portion 15 includes the cylinder shafts 14 and 17.
Are orthogonally stacked, and support portions 15a, 15a that stand obliquely upward with the cylinder shaft 17 sandwiched therebetween are formed. The pair of support portions 15a, 15a are formed in a U shape at the upper side and two support portions A switch fixing portion 15b having a columnar protrusion is formed, and a hole formed in the limit switch 25 is fitted and fixed to the switch fixing portion 15b.
The operating piece 25a of the limit switch 25 is opened / closed by contacting / separating with the protrusion 32 formed on the side surface of the shift lever body 18. The limit switch 25 inputs a switching signal between the A / T mode and the M / T mode to the control unit of the transmission.

The shift lever body 18 includes the bracket portion 1
The rectangular tube portion 26 is integrally formed on the upper portions of 8a and 18a, and elongated holes 28 through which a position pin 27 penetrates and move up and down are vertically formed on both right and left side surfaces of the rectangular tube portion 26. A stopper lever 29 formed in a hook shape is integrally formed in the vicinity of the upper end of the rectangular tube portion 26, and a substantially trapezoidal projection 30 is formed on the side surface opposite to this. And the square tube part 2
A protrusion 32 for operating the actuating piece 25a of the limit switch 25 is formed on the lower portion of the front side surface of 6, and a cylinder portion 31 is integrally formed on the rear side surface so as to be inclined rearward.

A two-step cylindrical columnar portion 33 is integrally formed on the upper portion of the rectangular tubular portion 26. The compression rod 34 penetrating the cylindrical column portion 33 is
It is inserted into the rectangular tube portion 26 and the cylindrical portion 33 from the lower surface of a. The lower end of the compression rod 34 has a large diameter and is provided with a hole 35 for press-fitting the position pin 27. A coil spring 36 is mounted between the compression rod 34 and the cylinder shaft 17. A cap 37 is attached to the upper end of the compression rod 34 so that the knob 24
The inclined surface 38 formed on the knob button 38 by extending inward
a (see FIG. 3).

A coil spring 39 is attached to the tubular portion 31.
Is inserted, and the spherical projection rod 40 that is biased by the coil spring 39 and projects is brought into sliding contact with the moderation feeling forming portion 41 formed on the inner surface of the base bracket 1. Moderation forming part 4
When the shift lever main body 18 is in the A / T mode shift groove, the spherical projection rod 40 moves in the vehicle body front-rear direction, so that the slide groove 41a is in sliding contact with the shift lever main body 18.
When moving to the M / T mode shift groove, the spherical projection rod 40 moves in the left-right direction of the vehicle body, so that the valley-shaped groove 41b which is in sliding contact therewith is formed adjacently.

The switching lever 16 is a substantially fan-shaped plate,
A cylindrical shaft 42 through which the shaft 13 penetrates is integrally formed on the swinging base, and a shaft projection 43 for axially mounting a shift cable or a rod is projectingly provided at an end on the front side of the vehicle body.
Is integrally formed with a bracket portion 46 for fixing the screw with a screw 45. The leaf spring 44 is in sliding contact with the moderation feeling forming portion 47 (see FIG. 2) formed on the inner surface of the base bracket 1, and the shift lever body 18 is in the A / T mode.
When the shift lever body 18 is in the A / T mode, the switching lever 16 is held at the D range position by the sliding contact force when the shift lever body 18 is in the A / T mode. A substantially trapezoidal opening portion 48 and an opening portion 49 are provided in communication with each other at a substantially central portion in the plane of the switching lever 16. The cylinder shaft 42 is fitted onto one end of the cylinder shaft 14 of the shift lever base 15, and the bushes 14 a and 14 a are fitted into both ends of the cylinder shaft 14 so that the shaft 13 is hinged.
Is inserted from the outside, and a push nut 13a is attached to the end of the shaft 13 to prevent the shaft from coming off.

The opening 49 has a fitting piece 5 bent outward.
Shift lever main body 18 having 0, 50 and facing it
The substantially trapezoidal projection 30 provided on the side surface of the square tube portion 26 of the lock lever body 18 is disengaged.
When it is in the A / T mode shift groove, the fitting pieces 50, 5
When the shift lever main body 18 rotates in the direction away from the switching lever 16, the projection portion 30 is engaged between
0 escapes through the opening 49. Even if the protrusion 30 comes out of the opening 49, the end of the position pin 27 penetrates the opening 48, but the opening 4 of the switching lever 16 does not.
8 Does not interfere with the end face. Therefore, the opening 48 is formed in a substantially fan shape so as not to hinder the movement of the position pin 27 in the front-rear direction when the shift lever main body 18 moves to the M / T mode side of the shift groove.

When the projection 30 comes out of the opening 49, that is, the shift lever main body 18 is moved to the shaft 1
3 is rotated to the left, the base bracket 1 has an opening 52 through which the stopper lever 29 passes so as not to interfere with the side wall 51 of the base bracket 1.
Then, a wide opening 53 is formed integrally with the stopper lever 29 which has passed therethrough so as to be rotatable in the longitudinal direction of the vehicle body. The position pin 2 is provided below the opening 53.
The detent notch portion 54 with which the sliding contact is made is the left and right side wall portions 51.
Is formed. On the inner surface of the left side wall portion 51, a stopper portion 51a (see FIG. 3) formed of a thick portion or a rib with which the stopper lever 29 abuts or slides when the shift lever body 18 is in the A / T mode is formed. Has been done.

A switch unit 55 is provided so as to cover the openings 52 and 53. That is, the switch unit 55 has limit switches 59, 59 housed on the inner surface of a concave body in which the claw projections 56, 56 are integrally formed on the left and right, and the claw projections 56, 56 have the engagement holes 5 formed in the side wall portion 51.
7 and 57 are engaged. The columnar protrusions 58, 58 are integrally formed on the inner surface of the switch unit 55.
At 8, 58, the holes provided in the limit switches 59, 59 are inserted and fixed to the inner surface of the concave body. The limit switch 59 is opened and closed by the side surface of the stopper lever 29 coming into contact with and separating from the operating piece 59a of the limit switch 59, and the front side of the indicator 22 for acceleration (+) and the rear side for deceleration (-).
Then, each opening / closing signal is sent to the transmission.

The base bracket 1 is an integrally molded product made of resin, a shift lock mechanism 60 is arranged on the side of the base bracket 1, and a rubber boot 64 is crowned on the bottom by its projection 61. It is fixed to the floor surface of the vehicle body by the bolts 64 by the bolts 64. The seal plate 62 is formed of a thin iron plate or the like, and is attached so as to have flatness with the floor surface of the vehicle body. Further, in FIG. 2, reference numeral 65 is a limit switch, and the projection 66 of the switching lever 16 comes into contact with and separates from the limit switch to operate the shift lock mechanism 60.

The operation of the automatic transmission operating device having the above structure will be described. When traveling in the A / T mode, the shift lever main body 5 is erected vertically from the base bracket 1 and the projection 30 is engaged with the opening 49. Then, together with the switching lever 16,
Hold the knob 24 and push the knob button 38 to lower the compression rod 34 to disengage the position pin 27 from a specific range, and along the shift grooves 23, 23a to 23c around the shaft 13 for the A / T mode. Rotate back and forth. At this time, the switching lever 16
Rotates in unison with the shift lever main body 18 and gives a click feeling in each shift range by the pressing force of the leaf spring 44 slidingly contacting the click feeling forming portion 47.

When switching to the M / T mode in the D range, the shift lever main body 18 is moved to the shaft 1
9 is pushed down in a direction away from the switching lever 16 so that the projection 32 separates from the limit switch 25 to turn it ON, and a signal for switching to the M / T mode is input to the control unit of the transmission, and the projection 30 disengages from the opening 49 of the switching lever 16, and the switching lever 16 holds the shift cable or the rod 67 (see FIG. 2) in the D range by the sliding contact force of the leaf spring 44 pressing against the moderation feeling forming portion 47. To do. Further, when the shift lever main body 18 is rotated in the left-right direction, the spherical projection rod 40 moves from the groove 41a of the click feeling forming portion 41 to the groove 41b, and this movement causes a click feeling.

At this time, the shift lever body 18 causes the shift groove 23 to move between the peninsula portions 22a, 22a.
If the shift lever main body 18 is located on the side of the peninsula portion 22a without properly facing d, and the shift lever body 18 is rotated toward the shift groove side for the M / T mode, the stopper lever 29 does not move to the side wall portion of the base bracket 1. It abuts on the stopper portion 51a on the inner surface of 51. Therefore, the shift lever main body 18 does not apply a load that damages the peninsula portion 22a.

Then, the shift lever body 18 is formed on the peninsular portion 2
When the shift groove 23d between 2a and 22a is moved to the M / T mode shift groove, the shift lever main body 18 tilts leftward about the shaft 19, whereby the stopper lever 29 moves from the openings 52 and 53 to the base. Bracket 1
And is located inside the opening 53. Therefore, when the shift lever main body 18 is rotated forward or backward, the shift lever main body 18 rotates forward or backward around the shaft 13, and the stopper lever 29 moves forward or backward in the vehicle body in the opening 53 to limit the limit. The operation piece 59a of the switches 59, 59 is pressed to input an acceleration or deceleration signal to the control unit of the transmission.

Next, in order to return from the M / T mode to the A / T mode, the shift lever main body 18 is rotated about the shaft 19 in the direction opposite to the above in the substantially central portion of the opening 53, and the stopper is provided. The lever 29 moves from the opening 52 into the base bracket 1, and the protrusion 30 is fitted into the opening 49 of the standby switching lever 16 and is clamped by the fitting pieces 50, 50.
And the switching lever 16 are integrally connected. This allows
The shift lever body 18 can be pivoted back and forth around the shaft 13. Then, the protrusion 32 of the shift lever body 18 causes the operating piece 2 of the limit switch 25 to operate.
By pressing 5a to turn off the limit switch 25, the mode is switched to the A / T mode.

During this returning operation, the stopper lever 29
Is not properly facing the opening 52,
The stopper lever 29 is provided on the side wall 51 of the upper side of the opening 53.
The shift lever main body 18 is prevented from falling toward the switching lever 16 side by the contact with the. Therefore, the situation where the excessive force is applied to the peninsula portions 22a, 22a of the indicator 22 to cut it off does not occur.

The gist of the present invention described above will be briefly summarized with reference to FIG. 5. As a configuration, as shown in FIG. 5A, the shift groove 23a of the base bracket 1 does not have a peninsular portion. While the A / T mode shift groove and the M / T mode shift groove are integrally formed, a stopper portion 51a including a rib or the like with which the shift lever main body 18 can abut is formed inside the base bracket 1, while (B ), The stopper lever 2 is attached to the shift lever body 18.
When the shift lever main body 18 is swung in the lateral direction of the vehicle body when the shift lever main body 18 is not located at an appropriate position when the shift lever main body 18 is swung out, the stopper lever 29 is provided with a stopper portion 51.
a or the outer surface of the side wall portion 51 so as not to swing.

Therefore, the A / T mode shift groove and the M /
Since the space S between the T-mode shift grooves can be formed smaller (narrower) than the conventional one, the lateral width W in the vehicle body left-right direction in the base bracket 1 having the same height h as the conventional one can be made smaller. The transmission operating device can be downsized. Further, since the amount of horizontal movement on the knob 24 attached to the upper portion of the shift lever main body 18 can be reduced, it is possible to perform a transition operation from the A / T mode to the M / T mode and the M / T mode. This has an advantage that the operation feeling of the shift operation can be improved.

[0034]

According to the present invention described above, when the shift lever body swings in the left-right direction of the vehicle body, the shift lever body cannot swing unless it is in its proper position. No load is applied to the peninsula portion of the H-shaped shift groove, so that the peninsula portion is not damaged.

As a result, the width of the peninsula portion can be reduced and the height of the indicator can be reduced, so that the height and lateral width of the automatic transmission operating device can be shortened and the size can be reduced. .

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional side view of the assembly shown in FIG.

FIG. 3 is a sectional front view of FIG. 2;

FIG. 4 is a plan view of FIG. 2;

5A and 5B are schematic configuration diagrams of a main part of the present invention.

6A and 6B are schematic explanatory views of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Base bracket 16 ... Switching lever 18 ... Shift lever main body 20 ... Buffer member 21 ... Light guide plate 22 ... Indicators 23, 23a-23c ... Shift groove 27 ... Position pin 29 ... Stopper lever 52, 53 ... Opening part 30 ... Projection part 51 ... Side wall 51a ... Stopper

Claims (2)

[Claims] 1. A shift lever main body, which is rotatably supported in a front-rear direction via a shaft on a base bracket fixed to a vehicle body, is movably provided in an A / T mode shift groove and an M / T mode shift groove. When the shift lever main body is in the A / T mode shift groove, the end of the position pin that moves up and down by the operation of the push button provided on the upper part of the shift lever main body is provided on the side wall of the base bracket. A switching lever that engages with the cutout portion and is rotatably supported by the shaft on one side of the shift lever main body in the front-rear direction and has one end of a shift cable or a rod connected thereto is provided on the switching lever. The shift lever main body rotates integrally with the shift lever main body by the protrusion formed on the shift lever main body that fits in the formed opening, and the shift lever main body is in the M / T mode. In the automatic shift operating device in which the protrusion of the shift lever main body is disengaged from the opening of the switching lever and only the shift lever main body is rotated in the front-rear direction to operate the electric switch when the shift lever is in the shift groove, When the main body is in the A / T mode shift groove, it can be brought into contact with the inner surface side of the side wall portion of the base bracket, and when the shift lever main body is in the M / T mode shift groove, the side wall portion of the base bracket. An automatic transmission operating device comprising a shift lever main body provided with a stopper lever bent outwardly from an opening formed in the opening and bent so as to be able to contact an outer surface of an upper side thereof. 2. A stopper portion with which the stopper lever comes into contact when the shift lever main body is in the A / T mode shift groove and is swung in the vehicle body left-right direction at an improper position that does not face the shift groove. 2. The automatic transmission operating device according to claim 1, wherein is formed on the inner surface side of the side wall portion of the base bracket.