JP4781207B2 - Shift lever device - Google Patents

Description

  The present invention relates to a vehicle shift lever device.

FIG. 3 discloses a shift lever device 1 having a housing 2, an unlocking member 3, and a biasing spring 4 that biases the unlocking member 3 upward with respect to the housing 2.
The unlocking member 3 and the urging spring 4 are assembled to the housing 2 from the upper surface side of the housing 2 in a state where the urging spring 4 is inserted into the boss portion 3 a of the unlocking member 3 in advance.

However, the conventional shift lever has the following problems.
When the unlocking member 3 and the urging spring 4 are assembled to the housing 2, the urging spring 4 comes off from the boss portion 3 a of the unlocking member 3, and as shown in FIG. There is a risk of getting in. If the lock release member 3 is pushed in while the urging spring 4 enters the boss hole 2a, the urging spring 4 is deformed.
Further, since the unlocking member 3 and the urging spring 4 are assembled to the housing 2 with the urging spring 4 inserted in advance in the boss portion 3a, the urging spring 4 is held while the urging spring 4 is held during assembly (the urging spring 4). The lock release member 3 and the urging spring 4 must be assembled to the housing 2 (supporting the boss 3a so as not to be detached from the boss 3a), and the assembling workability is poor.
Japanese Utility Model Publication No. 4-46259 JP-A-9-272362

A first object of the present invention is to provide a shift lever device capable of preventing the biasing spring from entering the boss hole of the housing when the unlocking member and the biasing spring are assembled to the housing.
A second object of the present invention is to provide a shift lever device that has better assembly workability than conventional ones.

The present invention for achieving the above object is as follows.
(1) (a) a housing;
(B) a main body portion, and a boss portion extending from the main body portion and passing through a boss hole provided in the housing, and an unlocking member movably supported by the housing;
(C) a biasing spring that biases the unlocking member with respect to the housing;
Have
The shift lever device is provided with an engaging protrusion that engages with the urging spring on a boss portion of the unlocking member ,
The cross-sectional shape of the boss portion of the unlocking member is a cross shape,
The engagement protrusion is provided on only two protrusions positioned on opposite sides of the four cross-shaped protrusions.

According to the shift lever device of the above (1), since the engagement protrusion for engaging the urging spring is provided on the boss portion of the unlocking member, the urging spring is engaged with the engagement protrusion. The unlocking member and the biasing spring can be assembled to the housing. Therefore, when the unlocking member and the urging spring are assembled to the housing, the urging spring can be prevented from coming off from the boss portion of the unlocking member, and the urging spring can be prevented from entering the boss hole of the housing. .
Further, since the unlocking member and the biasing spring can be assembled to the housing in a state where the biasing spring is engaged with the engaging protrusion, the unlocking member and the biasing force are held while holding (holding) the biasing spring 4. There is no need to assemble the spring to the housing, and the assembly workability is improved as compared with the conventional case.
Further, the boss portion of the unlocking member has a cross-shaped cross section, and the engagement protrusion is provided only on two protrusions located on opposite sides of the four protrusions of the cross shape. The biasing spring can be engaged with the engaging protrusion with a light force compared to the case where the protrusion is provided on the four or three protrusions of the cross shape, Compared to the case where the lock release member and the biasing spring are assembled to only one protrusion, the biasing spring is less likely to be inclined or detached with respect to the lock releasing member when the lock release member and the biasing spring are assembled to the housing.

1 and 2 show a shift lever device according to an embodiment of the present invention.
As shown in FIG. 1, the shift lever device 10 according to the embodiment of the present invention includes a housing 20, a lock release member 30, and a biasing spring 40.

The housing 20 is made of resin, for example. The housing 20 is fixed to a vehicle (not shown). The housing 20 includes a housing upper 21 and a housing lower 22.
An outer surface (front surface) 21 a of the housing upper 21 constitutes a design surface of the shift lever device 10. The housing upper 21 includes a body portion hole 23 into which the unlocking member 30 can be inserted and the body portion 31 of the unlocking member 30 is slidably fitted.
The housing lower 22 is disposed on the back side of the housing upper 21. The housing lower 22 may be formed integrally with the housing upper 21 to reduce the number of parts, or may be formed separately from the housing upper 21 and fixed to the housing upper 21. The housing lower 22 includes a boss hole 24 at a position spaced apart from the main body hole 23. The boss portion 32 of the lock release member 30 is inserted into the boss hole 24.

The lock release member 30 may be a lock release button or a lock release link that is pressed by the lock release button.
The lock release member 30 is forced to release a shift lock mechanism (not shown) of the shift lever device 10 by being pressed. By operating this member 30, even if some electrical malfunction occurs in the shift lock mechanism, a shift lever (not shown) is shifted from a predetermined shift position (for example, P (parking) position) to another shift position. be able to.

The lock release member 30 is made of resin, for example. The lock release member 30 is supported by the housing 20 so as to be capable of reciprocating linear movement.
The unlocking member 30 includes a main body 31 that is slidably fitted into the main body hole 23, and a boss 32 that extends from the main body 31 to the back side of the housing 20 (lower side in FIG. 1) and passes through the boss hole 24. And comprising. The main body portion 31 and the boss portion 32 may be formed separately from each other, but are preferably formed integrally to reduce the number of parts.

The main body 31 protrudes from the main body hole 23 to the outside (upward) of the housing 20 when the unlocking member 30 is not pressed.
The cross-sectional shape (transverse cross-sectional shape) in the direction orthogonal to the extending direction of the boss portion 32 is a cross shape as shown in FIG. 2 in order to prevent assembly of the urging spring 40 and to prevent sinking when the boss portion 32 is molded. It is said that.

As shown in FIG. 1, the urging spring 40 is a coil spring. The urging spring 40 urges the unlocking member 30 against the housing 20 in a direction in which the main body portion 31 of the unlocking member 30 protrudes outside the housing 20.
The biasing spring 40 is inserted into the boss portion 32. One end (end portion) of the urging spring 40 is seated on the main body portion 31 of the unlocking member 31, and the other end (end portion) of the urging spring 40 is opposed to the housing upper 21 of the housing lower 22. It is seated on the surface 22a.

The boss portion 32 of the unlocking member 30 is provided with an engaging protrusion (hook portion) 50 with which the urging spring 40 is engaged (hooked).
The engaging protrusion 50 is provided in the vicinity of the end portion (root portion) of the boss portion 32 on the main body portion 31 side, and is set so that the urging spring 40 cannot get over the engaging protrusion 50 more than two times. As shown in FIG. 2, the engagement protrusion 50 is provided only on two protrusions positioned on opposite sides of the four protrusions 32 a of the cross-shaped boss 32 in a cross-sectional view.
The engagement protrusion 50 does not play any role after the lock release member 30 and the urging spring 40 are assembled to the housing 20.

Here, a method of assembling the lock release member 30 and the urging spring 40 to the housing 20 will be described.
The method of assembling the unlocking member 30 and the urging spring 40 to the housing 20 is as follows:
(I) a step of inserting the urging spring 40 into the boss portion 32 and getting over the engaging protrusion 50 (engaging with the engaging protrusion 50) only by one turn of the insertion side end of the urging spring 40;
(Ii) inserting the lock release member 30 and the urging spring 40 into the housing 20 from the outer surface 21a side of the housing 20 through the main body hole 23 with the boss portion 32 and the urging spring 40 as the insertion side end; ,
Have

Next, the operation of the embodiment of the present invention will be described.
In the embodiment of the present invention, since the engagement protrusion 50 with which the urging spring 40 is engaged is provided on the boss portion 32 of the unlocking member 30, the urging spring 40 is engaged with the engagement protrusion 50. The unlocking member 30 and the biasing spring 40 can be assembled to the housing 20. Therefore, when the unlocking member 30 and the biasing spring 40 are assembled to the housing 20, the biasing spring 40 can be prevented from coming off from the boss portion 32 of the unlocking member 30, and the biasing spring 40 is used for the boss of the housing 20. Intrusion into the hole 24 can be prevented.

  Since the unlocking member 30 and the biasing spring 40 can be assembled to the housing 20 with the biasing spring 40 engaged with the engaging projection 50, the unlocking member is held (supported) while holding the biasing spring 40. 30 and the urging spring 40 do not need to be assembled to the housing 20, and the assembling workability is improved as compared with the conventional case.

(A) When the engagement protrusion 50 is provided on all or three of the four cross-shaped protrusions 32a, the urging spring 50 must be extended over the entire circumference to engage with the engagement protrusion 50. It requires a strong force for engagement. Further, (b) when the engagement protrusion 50 is provided on only two or one of the four cruciform protrusions 32 a adjacent to each other, when the lock release member 30 and the urging spring 40 are assembled to the housing 20. The urging spring 40 may be inclined or disengaged with respect to the lock release member 30.
However, in the embodiment of the present invention, the boss portion 32 of the unlocking member 30 has a cross-shaped cross section, and the engagement protrusion 50 has two protrusions positioned on opposite sides of the four cross-shaped protrusions 32a. (A) it is possible to engage the urging spring 40 with the engaging protrusion 50 with a light force as compared with the case where the engaging protrusions 50 are provided on the four or three projecting portions 32a. (B) Compared to the case where the engagement protrusion 50 is provided only on two adjacent protrusions 32a or only one of the protrusions 32a, the biasing spring when the lock release member 30 and the biasing spring 40 are assembled to the housing 20 is possible. It becomes difficult for 40 to incline or disengage with respect to the unlocking member 30.

It is a fragmentary sectional view of the shift lever device of the example of the present invention. It is sectional drawing in the site | part in which the engagement protrusion is provided of the lock release member of the shift lever apparatus of this invention Example. It is a fragmentary sectional view of the conventional shift lever device. It is a fragmentary sectional view showing the case where an energizing spring has entered a boss hole of a housing when assembling a lock release member and an energizing spring of a conventional shift lever device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shift lever apparatus 20 Housing 21 Housing upper 22 Housing lower 23 Main part hole 24 Boss hole 30 Unlocking member 31 Unlocking member main body part 32 Unlocking member boss part 40 Energizing spring 50 Engaging protrusion

Claims (1)

(A) a housing;
(B) a main body portion, and a boss portion extending from the main body portion and passing through a boss hole provided in the housing, and an unlocking member movably supported by the housing;
(C) a biasing spring that biases the unlocking member with respect to the housing;
Have
The shift lever device is provided with an engaging protrusion that engages with the urging spring on a boss portion of the unlocking member ,
The cross-sectional shape of the boss portion of the unlocking member is a cross shape,
The engagement protrusion is provided on only two protrusions positioned on opposite sides of the four cross-shaped protrusions.

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