JP3593786B2 - Shift lever device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a shift lever device for shifting a transmission of an automobile, and more particularly, to a shift lever device capable of moving a lever with moderation.
[0002]
[Prior art]
Conventionally, as this kind of shift lever device, there is one described in Japanese Patent Application Laid-Open No. 7-253152.
[0003]
[Problems to be solved by the invention]
However, what is described in the above-mentioned publication is a lever which is attached to a vehicle body to be able to swing back and forth and left and right and moves between a plurality of shift range positions, and a peripheral wall and an outer wall which are associated with each of the shift ranges. A moderation plate formed in the vicinity of the lever with a moderation groove formed in a concavo-convex shape, and a leaf spring having one end attached to the lever and moving with the lever, and the other end of the leaf spring. Is provided so as to extend into the moderation groove of the moderation plate and to provide moderation by sliding the moderation groove in accordance with the movement of the lever back and forth and left and right. When sliding in the left-right direction, the leaf spring is twisted by the left-right force applied to the sliding convex portion of the leaf spring, so that a desired load cannot be obtained through the leaf spring and sufficient moderation cannot be obtained. There is
[0004]
The present invention has been made in view of such a problem, and has as its object to prevent a torsional force from being applied to a leaf spring.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, an invention according to claim 1 is provided with a lever that is attached to a vehicle body so as to swing back and forth and left and right and that moves between a plurality of shift range positions, and is associated with each of the shift ranges. A moderation groove in which a surrounding groove and an outer wall are continuously formed in an uneven shape is formed, and a moderation plate arranged near the lever, one end is attached to the lever, the other end moves together with the lever, and the other end is inside the moderation groove. In a shift lever device having an extending leaf spring,
The other end of the leaf spring is divided in the vertical direction, and a ball whose center is aligned with a central axis extending in the longitudinal direction of the leaf spring is fitted into the other end of the leaf spring.
A first support member having a bowl-shaped surface for supporting an upper surface of the ball is provided between the ball and the upper end of the other end of the leaf spring, and the leaf spring is divided into two ends . A second support member having a bowl-shaped surface for supporting a lower surface of the ball is disposed between the lower end of the other end and the ball, and the ball is fixed by the first support member and the second support member. Pinch,
By locking a locking portion provided on an upper portion of a locking piece extending upward integrally from both side portions of the second support member to an upper end portion of the other end of the first support member or the leaf spring. The other end of the first support member and the leaf spring is fixed to the second support member,
The ball is projected from a circular hole provided in the bowl-shaped surface of the second support member, and the ball is rolled on the wall surface of the moderation groove.
[0006]
【The invention's effect】
According to the first aspect of the present invention, since the ball rolls on the wall of the moderating groove, the force received from the wall of the moderating groove acts on the center of the ball, and furthermore, the center axis extending in the longitudinal direction of the leaf spring. Since the center of the ball is aligned, it is possible to prevent a torsional force from being applied to the leaf spring.
[0007]
Further, the ball is sandwiched between the first support member and the second support member, and the locking portion provided above the locking piece extending upward integrally from both sides of the second support member is provided on the first support member or the leaf spring. By locking the ball to the other end of the ball, the ball can be reliably supported by simple assembly, and the locking piece and the locking portion can be prevented from interfering with the moderation groove.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall perspective view of a shift lever device according to the present embodiment.
In the figure, a shift lever device 10 mainly includes a lever 16 attached to the vehicle body 1 by a pin 12 and a shaft 14 so as to be able to swing back and forth and left and right, and a moderating plate 18 disposed near the lever 16. And a leaf spring 20 having one end attached to the lever 16 and moving together with the lever 16.
[0009]
The lever 16 passes through a slot 24 formed in a shift plate 22 attached to the vehicle body at an intermediate position in the vertical direction. The slot 24 is formed to determine a shift range position associated with the shift range, and the lever 16 is swung back and forth and left and right along the slot 24 to move between the plurality of shift range positions of the slot 24. Thus, a shift operation is performed.
[0010]
A moderation groove 18a similar in shape to the slot 24 also formed in association with the shift range is formed on the upper surface of the moderation plate 18. The detent groove 18a is formed in such a manner that the peripheral wall and the outer wall are continuously formed in an irregular shape in association with each shift position (P range, R range, N range, D range, 3 range, 2 range, 1 range) of the lever 16. ing.
[0011]
One end 20a of the leaf spring 20 is screwed to a mounting portion 16a provided on the lever 16 below the shift plate 22, and the other end 20b of the leaf spring 20 extends into the moderation groove 18a. FIG. 2 is an exploded perspective view showing the vicinity of the leaf spring 20 and the other end 20b. The leaf spring 20 has a two-piece structure in which one leaf spring is bent. The bent portion becomes the one end 20a and extends in the longitudinal direction so that the two pieces overlap with each other. Each end (upper end 20e, lower end 20f) of the spring is divided in the vertical direction. The amount of displacement of each of the ends 20e and 20f in the vertical direction is set to be equal so as to be symmetrical with respect to the central axis 26 extending in the longitudinal direction of the leaf spring 20. 20 c is a through hole for screwing the lever 16.
[0012]
The ball 32 is fitted between the fore-end upper end 20e and the lower end 20f of the other end 20b such that the center axis 26 of the leaf spring 20 and the center thereof are aligned. A first support member 28 is provided between the ball 32 and the upper end 20e, and a second support member 30 is provided between the ball 32 and the lower end 20f. The ball 32 is fixed to the other end of the leaf spring 20 by sandwiching the ball 32 between the ball 28 and the second support member 30. That is, a circular hole 20g is formed in the upper end 20e of the leaf spring 20, into which the boss 28a of the first support member 28 is fitted. 20f is bifurcated into a U-shape, and is fitted into long holes 30a, 30a (see FIG. 4) formed in the second support member 30, respectively. Then, as shown in FIG. 4, a bowl-shaped surface 28b formed on the lower surface of the first support member 28 supports the upper surface of the ball 32, and a bowl-shaped surface formed on the upper surface of the other second support member 30. The surface 30b supports the lower surface of the ball 32.
[0013]
Further, locking pieces 30c, 30c are integrally formed upward from both sides of the second support member 30, and locking claws 30d, 30d provided on the upper portions of the locking pieces 30c, 30c are attached to the upper end 20e. The first support member 28 and the other end 20 b of the leaf spring 20 are fixed to the second support member 30 by being locked.
Circular holes 28c and 30e are respectively formed in the center portions of the bowl-shaped surfaces 28b and 30b of the first support member 28 and the second support member 30, respectively. It protrudes from the holes 28c and 30e.
[0014]
When assembling the first support member 28, the ball 32, and the second support member 30 to the other end 20b of the leaf spring 20, as shown in FIG. After the boss 28a of the first support member 28 is fitted into the circular hole 20g, the ball 32 is passed through the central space of the lower end 20f of the U-shape to pass through the bowl-shaped surface 28b of the first support member 28. At the end, the second support member 30 is pushed in from below using the elasticity of the locking pieces 30c, 30c to lock the locking claws 30d, 30d to the upper end 20e, so that the second support member 30 can be easily assembled. . For this reason, the upper surface of the locking claw 30d is preferably tapered as shown in the figure.
[0015]
In the shift lever device 10 configured as described above, when the lever 16 swings back and forth and left and right along the slot 24 to move between a plurality of shift range positions of the slot 24, one end 20a is attached to the lever 16. The leaf spring 20 moves together with the lever 16, and the ball 32 fixed to the other end 20b of the leaf spring 20 rolls on the wall surface of the moderation groove 18a. The moderation groove 18a has a peripheral wall and a bottom wall continuous in an irregular shape, so that the ball 32 can get over the irregularity of the moderation groove 18a while the leaf spring 20 is elastically deformed. Due to the unevenness, the lever 16 is moved with moderation.
[0016]
By allowing the ball 32 to roll, for example, the force received from the convex wall surface of the moderation groove 18a is divided into a force Fu acting in the direction of ascending the center of the ball 32 and a force Fr for rotating the ball 32. (See FIG. 8). That is, even when the leaf spring 20 moves in a direction intersecting the central axis 26 extending in the longitudinal direction of the leaf spring 20, the force received from the wall surface of the moderation groove 18a is a vertical component force at the center of the ball 32. Works. Since the center axis 26 of the leaf spring 20 matches the center of the ball 32, no rotational moment acts on the leaf spring 20 and the leaf spring 20 can be prevented from being twisted. As is clear from FIG. 4, the structure of the other end 20b of the leaf spring 20 is symmetrical with respect to the center axis 26 of the leaf spring 20 in the sectional view of FIG. Is desired.
[0017]
Since the locking piece 30c and the locking claw 30d are arranged at an upper portion away from the moderation groove 18a, they do not interfere with the moderation groove 18a.
Next, FIG. 6 is a view corresponding to FIG. 4 showing another embodiment of the present invention, and FIG. 7 is a perspective view showing the leaf spring of FIG. The difference from the previous embodiment is that the leaf spring 40 has a one-piece structure without being bent, a through hole 40c for screwing to the lever 16 is provided near one end 40a, and the ball 32 is provided at the other end 40b. A circular hole 40d to be fitted is provided. Further, the other end 40b of the leaf spring 40 is different from the previous embodiment in that the other end 40b is sandwiched by the first support member 42 and the second support member 44 together with the ball 32, but is formed on the lower surface of the first support member 42. The bowl-shaped surface 42b supports the upper surface of the ball 32, and the bowl-shaped surface 44b formed on the upper surface of the other second support member 44 supports the lower surface of the ball 32. The point that a part of the ball 32 protrudes from the circular holes 42c and 44e respectively formed in the center of 44b is common to the previous embodiment.
[0018]
When assembling the first support member 42, the ball 32, and the second support member 44 to the other end 40b of the leaf spring 40, the ball 32 is inserted into the circular hole 40d of the other end 40b of the leaf spring 40, and Then, the bowl-shaped surface 42b of the first support member 42 is aligned with the ball 32, and finally the second support member 44 is pushed in from below by utilizing the elasticity of the locking pieces 44c, 44c, so that the second supporting member 44 is placed above the locking pieces 44c, 44c. By locking the provided locking claws 44d, 44d to the first support member 42, it is possible to easily assemble them.
[0019]
Even with such a configuration, the center of the ball 32 can be made to coincide with the central axis 46 of the leaf spring 40, and the torsion of the leaf spring 40 can be prevented.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a shift lever device according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing a leaf spring and the vicinity of another end of the apparatus of FIG. 1;
FIG. 3 is a plan view showing the other end of the leaf spring of the device of FIG.
FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;
FIG. 5 is a view as seen from the direction of arrow 5 in FIG. 3;
FIG. 6 is a diagram corresponding to FIG. 4, showing another embodiment of the present invention.
FIG. 7 is a perspective view showing the leaf spring of FIG. 6;
FIG. 8 is an explanatory diagram showing the operation of the device of FIG. 1;
[Explanation of symbols]
10 shift lever device 16 lever 18 moderation plate 18a moderation groove 20 leaf spring 20a one end 20b other end 26 center axis 28 first support member 28b bowl-shaped surface 30 second support member 30b bowl-shaped surface 30c locking piece 30d locking claw ( Locking part)
30e circular hole 32 ball 40 leaf spring 40a one end 40b other end 42 first supporting member 42b bowl-shaped surface 44 second supporting member 44b bowl-shaped surface 44c locking piece 44d locking claw (locking portion)
44e circular hole 46 center axis

Claims (1)

A lever is attached to the vehicle body so as to be able to swing back and forth and left and right to move between a plurality of shift range positions, and a moderation groove is formed in which the surrounding wall and the outer wall are associated with each of the shift ranges so that the surrounding wall and the outer wall are unevenly continuous. A detent plate disposed near the lever, and a leaf spring having one end attached to the lever, the leaf spring moving with the lever and extending the other end into the detent groove,
The other end of the leaf spring is divided in the vertical direction, and a ball whose center is aligned with a central axis extending in the longitudinal direction of the leaf spring is fitted into the other end of the leaf spring.
A first support member having a bowl-shaped surface for supporting an upper surface of the ball is provided between the ball and the upper end of the other end of the leaf spring, and the leaf spring is divided into two ends . A second support member having a bowl-shaped surface for supporting a lower surface of the ball is disposed between the lower end of the other end and the ball, and the ball is fixed by the first support member and the second support member. Pinch,
By locking a locking portion provided on an upper portion of a locking piece extending upward integrally from both side portions of the second support member to an upper end portion of the other end of the first support member or the leaf spring. The other end of the first support member and the leaf spring is fixed to the second support member,
A shift lever device, wherein the ball protrudes from a circular hole provided in the bowl-shaped surface of the second support member, and the ball rolls on a wall surface of the moderation groove.

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