JP3825592B2 - Transmission operating device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an operation device for a transmission of an automobile.
[0002]
[Prior art]
Conventionally, as an operation device of this type of transmission, for example, “TOYOTA TOWNACE LITEACE NOAH van repair book October 1996” or one described in FIG. 5 is available.
[0003]
The transmission operating device shown in FIG. 5 includes a cylindrical main body member 40, a select lever 42 that is rotatable relative to the main body member 40 and provided with an operation knob at the tip, and a select lever 42 that is connected to the select lever 42. To the transmission, a detent base 46 that penetrates the body member 40 and is connected to the select lever 42 and the select position determination lever 44 so as to be integrally rotatable, and a detent base 46. A detent block 48 that is rotatably attached, and a detent gate 50 that is formed with a concave and convex groove that can be engaged with the tip of the detent block 48 and is screwed to the main body member 40 are provided.
[0004]
[Problems to be solved by the invention]
In the conventional structure shown in FIG. 5, in order to reduce the weight, the main body member 40, the select position determining lever 44 and the detent base 46 are made of aluminum, while in order to improve the strength and wear resistance, The engaging detent block 48 and the detent gate 50 are made of steel. Therefore, since the detent gate 50 cannot be welded to the main body member 40, it is necessary to screw it to the main body member 40. Further, the detent base 46, the select position determining lever 44, and the select lever 42 need to be integrally connected using a special bolt 52. Thus, since there are many number of parts of the whole, the attachment work increases and there exists a subject that manufacturing cost becomes high. Even if the main body member 40 is not made of aluminum, it is difficult to form the main body member 40 and the detent gate 46 integrally because the shape becomes complicated and difficult, so the number of parts increases. There's a problem.
[0005]
SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and it is an object of the present invention to provide an operating device for a transmission that can reduce the number of parts and simplify the mounting operation. To do.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 is a main body member, a pipe-shaped select lever supported on the main body member so as to be relatively rotatable, and provided with an operation knob at the tip, and the selector lever. A detent gate having a plurality of concave and convex grooves forming a detent pattern, and a detent engaging portion engageable with the concave and convex grooves of the detent gate And a detent body that is swingable about a swing shaft, a biasing means that biases the detent body in a swinging direction in which the detent engaging portion engages with the concave and convex grooves, and the select An operation of a transmission comprising: an operating member that is routed in a lever and has one end connected to a select button provided on the operation knob and the other end connected to the detent body. In location, characterized in that the formation of the detent gate integrally with the selected position determination lever.
[0007]
According to a second aspect of the present invention, the select lever position determining lever integrated with the detent gate according to the first aspect is formed in a plate shape, and the select lever position determining lever is fixed to the outer peripheral surface of the select lever. It is characterized by.
[0008]
The invention described in claim 3 is characterized in that the detent body having the detent engaging portion described in claim 1 or 2 is formed in a plate shape.
[0009]
According to a fourth aspect of the present invention, the detent body according to the third aspect is swingably attached to the main body member, and the detent in the rotation direction of the select position determining lever is located near the detent engaging portion of the main body member. It is characterized in that a support part for restricting the movement of the body is formed.
[0010]
According to a fifth aspect of the present invention, the other end side of the operation member according to the third aspect is inserted into the main body member, and the detent body is swingably attached to the main body member along the longitudinal direction of the main body member. The other end of the operation member inserted through the main body member is connected to the protruding end of the detent body so as to protrude from the end of the main body member on the side opposite to the operation knob.
[0011]
A sixth aspect of the invention is characterized in that the main body member according to any one of the first to fifth aspects is attached to a steering column, and the swing shaft of the detent body is disposed outside a horizontal plane.
[0012]
【The invention's effect】
According to the first aspect of the present invention, since the detent gate is integrated with the select position determining lever, it is not necessary to attach the detent gate to the main body member, and the number of parts and the number of mounting work steps can be reduced.
[0013]
Further, by integrating the detent gate with the select position determining lever instead of the main body member, the detent gate can be easily integrated without complicating the structure.
[0014]
According to the second aspect of the invention, in addition to the effect of the first aspect, since the select lever position determining lever integrated with the detent gate is formed in a plate shape, the select lever position determining lever can be manufactured easily and lightly. And can be easily fixed to the outer peripheral surface of the select lever.
[0015]
According to the invention described in claim 3, in addition to the effect according to claim 1 or 2, since the detent body having the detent engaging portion is formed in a plate shape, the detent body can be manufactured easily and lightly.
[0016]
According to the fourth aspect of the invention, in addition to the effect according to the third aspect, the support portion formed on the main body member transmits the operation load transmitted from the detent gate to the detent engagement portion engaged with the detent gate. Therefore, even if the detent body is formed in a plate shape, it can be sufficiently handled.
[0017]
According to the invention described in claim 5, in addition to the effect according to claim 3, the other end of the operating member is connected to the protruding end protruding from the counter-operation knob side end of the main body member of the detent body. The degree of freedom in setting the lever ratio increases, and the degree of freedom in setting the biasing means for biasing the detent body can also be increased. In addition, the operation of connecting the other end of the operation member can be performed under a relatively wide space without obstructing the select position determining lever and the detent gate, and the workability can be improved.
[0018]
According to the sixth aspect of the present invention, in addition to the effect according to any one of the first to fifth aspects, by arranging the swing shaft of the detent body other than in the horizontal plane, Since the detent body does not protrude, the vertical dimension of the steering column to which the transmission operating device is attached can be made as small as possible. And the foot space of a driver's seat can be taken widely.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0020]
FIG. 1 is a perspective view showing an embodiment of an operation device for a transmission according to the present invention, and FIG. 2 is an exploded perspective view thereof.
[0021]
In the figure, reference numeral 10 denotes a cylindrical main body member, and a select lever 12 is supported on the main body member 10 so as to be relatively rotatable. The select lever 12 has a pipe shape including a straight portion 12a penetrating the main body member 10 and a bent portion 12b bent from the straight portion 12a into a substantially L shape. The straight portion 12a is pivotally supported on the main body member 10 by a shaft stopper member 36 (FIG. 2). An operation knob 12c is further provided at the tip of the bent portion 12b, and a select button 14 is further provided on the operation knob 12c. One end of an operation cable 16 that is an operation member is connected to the select button 14. The operation cable 16 is routed in the pipe-shaped select lever 12, and the other end is connected to the detent body 18. The detent body 18 is formed in a plate shape, and is attached to the main body member 10 so as to be swingable about the swing shaft 20 along the longitudinal direction of the main body member 10, and on the counter-operation knob 12 c side of the main body member 10. A projecting end 18a projecting from the end portion is provided, and the other end of the operation cable 16 inserted through the straight portion 12a of the select lever 12 is connected to the projecting end 18a. For this connection, the bulging portion 16a provided at the other end of the operation cable 16 is inserted into the screw 22 from the notch 22a formed on the peripheral surface of the screw 22 by a known method shown in FIG. The bulging portion 16a is fixed in the protruding end 18a by screwing the screw 22 into a screw hole 18b formed in the protruding end 18a.
[0022]
The main body member 10 is attached to the steering column 32 with a bolt 34 or the like via a bracket 34, and the swing shaft 20 of the detent body 18 is perpendicular to a horizontal plane formed parallel to the axis of the straight portion 12a of the select lever 12. The detent body 18 is provided so as to swing on a horizontal plane. A detent engaging portion 18c is formed on the opposite side of the projecting end 18a of the detent body 18, and the detent engaging portion 18c can be engaged with a concave / convex groove 24a of a detent gate 24 described below. . Between the detent body 18 and the main body member 10, a spring 26, which is a biasing means for biasing the swinging direction of the detent body 18 in a direction in which the detent engagement portion 18c is engaged with the concave and convex groove 24a, is interposed. ing. Note that ST indicates a steering wheel fixed to the end of the shaft SF in the steering column 32 on the vehicle interior side.
[0023]
The detent gate 24 is formed in an integral plate shape together with the select position determination lever 28. A plan view of the plate-shaped detent gate 24 and select position determining lever 28 is shown in FIG. The detent gate 24 has a plurality of concave and convex grooves 24a which are detent patterns, and the concave and convex grooves 24a are detent patterns corresponding to the parking range P, reverse range R, neutral range N, drive range D and second range 2, respectively. Is configured. A pin 30 is attached to one end of the select position determining lever 28, and one end of a shift cable (not shown) is connected to the pin 30. The other end of the shift cable is the range of the automatic transmission. It is connected to a switching device (not shown).
[0024]
The select position determining lever 28 integrated with the detent gate 24 has a straight portion 12a of the select lever 12 passing through a through hole 28a formed in the plate, and is welded to the outer peripheral surface of the straight portion 12a. It is fixed.
[0025]
It is desirable that the detent body 18 and the detent gate 24 integrated with the select position determining lever 28 are both made of steel, so that even if each is formed in a plate shape, sufficient engagement strength between them is provided. In addition, since it is plate-shaped, the weight does not increase excessively. Preferably, as shown in the drawing, a portion corresponding to the detent gate 24 of the detent gate 24 and the select position determining lever 28 integrated in a plate shape is thickened, and the thick portion of the select lever is further selected. When the side facing the 12 straight portion 12a is formed into a shape surface 24b corresponding to the outer peripheral shape of the end portion on the side of the select lever 12 of the cylindrical main body member 10, excessive input such as during the turning operation of the select lever 12 is also possible. It can be effectively transmitted to the outer peripheral surface of the main body member 10. One main body member 10 can be made light weight by being made of aluminum or magnesium.
[0026]
Further, the main body member 10 is formed with a lower protruding portion 10 a extending along the lower side of the detent body 18 and having an upper surface side formed as a horizontal surface, and upper protruding portions 10 b and 10 c extending above the detent body 18. The upper protruding portions 10b and 10c may protrude along substantially the entire longitudinal direction of the detent body 18 like the lower protruding portion 10a, but may be formed discretely as shown in the drawing, and at least Like the protrusion 10b, it is desirable to protrude into the detent body 18 in the vicinity of the detent engagement portion 18c. The upper projecting portion 10b and the lower projecting portion 10a, and the upper projecting portion 10c and the lower projecting portion 10a constitute a support portion for the detent body 18, and the support portion rotates the select position determining lever 28. By restricting the movement of the detent body 18 in the moving direction, it is possible to receive an operation load transmitted from the detent gate 24 to the detent engagement portion 18c that engages with the detent gate 24, and the detent body 18 has a plate shape. Even if it becomes, sufficient engagement strength can be given.
[0027]
Next, the operation of the transmission operating device configured as described above will be described.
[0028]
Normally, the detent body 18 is configured such that the detent engagement portion 18c is always engaged with any one of the concave and convex grooves 24a by the spring 26. The select lever 12 and the select position determining lever 28 fixed to the select lever 12 are positioned by being engaged. Therefore, even if it tries to move the select lever 12, it cannot be moved because the movement is restricted by the engagement between the concave / convex groove 24a and the detent engaging portion 18c.
[0029]
Next, when the driver presses the select button 14 of the operation knob 12c to change the range (arrow a in FIG. 1), the other end of the operation cable 16 is pulled into the select lever 12, so that the detent body 18 swings around the swing shaft 20 in the direction of arrow b in FIG. 1, and the detent engagement portion 18c is disengaged from the detent gate 24. In this state, for example, when the operation knob 12c is rotated in the direction of arrow c in FIG. 1, the select lever 12 and the select position determining lever 28 are rotated in the direction of arrow d in FIG. 1, and a desired range is selected. The rotation of the select position determination lever 28 is connected to a range switching device of the automatic transmission through a shift cable, and can be shifted to a required range.
[0030]
In this embodiment, since the detent gate 24 is integrated with the select position determining lever 28, the number of parts is reduced, and the mounting work of the detent gate 24 that has been conventionally required can be omitted. Further, since the detent gate 24 has a plate shape with the select position determining lever 28, its manufacture can be easily performed. Furthermore, since this integrated plate is made of steel, the engagement strength with the detent engagement portion 18c can be secured and the outer peripheral surface of the select lever 12 can be fixed by welding. The fixing work can also be easily performed. Similarly, since the detent body 18 having the detent engagement portion 18c engaged with the detent gate 24 is also plate-shaped, its manufacture can be easily performed. Further, the engagement strength can be ensured by making the plate-shaped detent body 18 made of steel. Further, the support portions 10 a, 10 b, and 10 c provided on the main body member 10 can further increase the engagement strength of the detent body 18 in the rotational direction of the select position determination lever 28.
[0031]
Further, since the other end of the operation cable 16 is connected to the projecting end 18a of the detent body 18, the degree of freedom in setting the lever ratio of the detent body 18 is increased, and the setting of the spring 26 that biases the detent body 18 is also increased in degree of freedom. be able to. Further, the operation of connecting the bulging portion 16a at the other end of the operation cable 16 to the protruding end 18a can be performed under a relatively large space without the select position determining lever 28 and the detent gate 24 being in the way, and the workability is also improved. Can be improved.
[0032]
Further, the main body member 10 is attached to the steering column 32, but the swing shaft 20 of the detent body 18 faces substantially vertical, and the detent engagement portion 18c swings mainly in a substantially horizontal plane. Therefore, the vertical dimension of the steering column 32 to which the transmission operating device is attached can be made as small as possible. As a result, a large space can be secured for the driver's seat.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a transmission operating device of the present invention.
FIG. 2 is an exploded perspective view of FIG. 1;
FIG. 3 is a plan view of an integrated detent gate and a select position determining lever.
FIG. 4 is an exploded perspective view showing the connection between the other end of the operation cable and the detent body.
FIG. 5 is a perspective view illustrating an embodiment of a conventional transmission operating device.
[Explanation of symbols]
10 body member 10a downward projecting part (supporting part)
10b Upper protruding part (supporting part)
10c Upper protrusion (support part)
12 Select lever 12c Operation knob 14 Select button 16 Operation cable (operation member)
18 Detent body 18a Protruding end 18c Detent engaging portion 20 Oscillating shaft 24 Detent gate 24a Uneven groove 26 Spring (biasing means)
28 Select position determination lever 32 Steering column

Claims (6)

A main body member, a pipe-shaped select lever supported on the main body member so as to be rotatable relative to the main body member, and a select position that rotates together with the select lever and transmits the rotation position of the select lever to the transmission. A detent having a determination lever, a detent gate having a plurality of concave and convex grooves constituting a detent pattern, a detent engaging portion engageable with the concave and convex grooves of the detent gate, and capable of swinging about a swing axis A body, urging means for urging the detent body in a swinging direction in which the detent engaging portion engages with the concave and convex grooves, and a select arranged in the select lever and having one end provided on the operation knob An operating member connected to the button and having the other end connected to the detent body,
The transmission operating device, wherein the detent gate is formed integrally with the select position determining lever. 2. The transmission operating device according to claim 1, wherein the select lever position determining lever integrated with the detent gate is formed in a plate shape, and the select lever position determining lever is fixed to the outer peripheral surface of the select lever. . 3. The transmission operating device according to claim 1, wherein the detent body having the detent engaging portion is formed in a plate shape. The detent body is swingably attached to the main body member, and a support portion for restricting the movement of the detent body in the rotation direction of the select position determining lever is formed near the detent engagement portion of the main body member. 4. The transmission operating device according to claim 3, wherein The other end side of the operation member is inserted into the main body member, and the detent body is swingably attached to the main body member along the longitudinal direction of the main body member, and is protruded from the non-operation knob side end portion of the main body member. The transmission operating device according to claim 3, wherein the other end of the operating member inserted through the main body member is connected to the projecting end of the detent body. The transmission operating device according to any one of claims 1 to 5, wherein the main body member is attached to a steering column, and the swing shaft of the detent body is arranged in a position other than a horizontal plane.

Images