JP3423867B2 - Transmission operating device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gear shift operating device having a detent mechanism that gives a feeling of moderation to the operation of a shift lever.

[0002]

2. Description of the Related Art For example, in an automobile equipped with an automatic transmission, a shift operation of the transmission is performed by operating a shift lever. In such a transmission,
Holds the shift position for operation of the shift lever,
A detent mechanism is provided to give a feeling of moderation to the operation of the shift lever.

As a detent mechanism, Japanese Utility Model Laid-Open No. 4-99452 discloses a structure in which a detent pin on the shift lever side is biased and pressed by a spring against a detent groove or a lock cam formed on the fixed member side. . Then, a groove is formed on the outer circumference of the detent pin to fix the O-ring to the groove, and the O-ring is brought into contact with the detent groove or the lock cam to prevent an interference sound between the detent pin and the detent groove or the lock cam.

[0004]

In the gear shift operation device provided with the detent mechanism that has been proposed hitherto, the O-ring is fixed to the outer periphery of the detent pin, so that the contact portion of the O-ring with respect to the detent groove and the lock cam is formed. The position was always the same, and the life of the O-ring was short. Also,
Since the groove formed on the outer periphery of the detent pin is for positioning the O-ring, the O-ring is fixed in the axial direction of the detent pin. If the O-ring is in a fixed state and the surface accuracy of the detent groove or lock cam is insufficient and excessive force is applied to the O-ring,
Since the O-ring has no clearance to escape, there is a risk of breakage or the like. Therefore, the contact surfaces of the detent groove and the lock cam are required to have high surface accuracy, which is disadvantageous in terms of cost.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a gear shift operation device that achieves a detent mechanism having a cushioning action at a low cost and with a long component life.

[0006]

In order to achieve the above object, according to claim 1 of the present invention, a roller member which rolls in a detent groove is rotatably supported by a supporting member, and is relatively rotatable with respect to the roller member. The elastic member is fitted to form the detent mechanism, and even if the surface accuracy of the detent groove is insufficient, the roller member and the elastic member are in contact with the detent groove, and an unreasonable force is applied to the elastic member. The roller member and the elastic member rotate smoothly without any action. An elastic member is fitted around the outer circumference of the roller member.
A matching annular groove is formed, and the lubricant is retained inside the annular groove.
Is characterized by the formation of a lubricant reservoir
However, the roller member and the elastic member rotate relative to each other through the lubricant.
It becomes freely rotatable and the relative rotation of the elastic member is smoother.
Be done.

According to the second aspect of the present invention, the roller member is formed of a self-lubricating material, and the relative rotation between the roller member and the elastic member is possible without providing a special structure. Becomes In the third aspect of the present invention, the roller member is movably supported by the support member in the direction along the rotation center axis, and the outer peripheral diameter of the elastic member is larger than the outer peripheral diameter of the roller member. The elastic member comes into contact with the surface of the detent groove even if the surface of the detent groove is rough, and the tapping sound can be prevented.

Further, the present invention is characterized in that the shift lever provided with a moderation feeling is a shift lever for shifting the automatic transmission.

[0009]

1 is a front view showing the vicinity of an instrument panel of a vehicle equipped with a gear shift operating device according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the gear shift operating device.
FIG. 3 shows a cross section of the shift operating device.

As shown in FIGS. 1 and 2, an instrument panel 1 as a panel extending in the left-right direction in a vehicle compartment is provided with a meter panel 2 on the driver's seat side (right side in the figure). A glove box 3 is provided on the passenger side (left side in the figure). A shift lever device 6 whose side is covered with the console panel 5 is provided at a portion lateral to the handle 4 in the central portion of the instrument panel 1.

The upper portion of the console panel 5 is open, and the open portion is covered by the shift panel 8, and the lever portion 7 of the shift lever device 6 penetrates the shift panel 8. The shift lever device 6 includes the instrument panel 1
It is attached to the reinforcement 19 that holds the
It is in a state of being covered by the console panel 5 and the shift panel 8.

The structure of the shift lever device 6 covered with the console panel 5 and the shift panel 8 will be described with reference to FIGS.

A pedestal 12 is fixed to a support frame 11 of the shift lever device 6, and a lever portion 7 is supported on the pedestal 12 so as to be rotatable around a base end portion Z in the vehicle front-rear direction. . A shift lever knob 9 is attached to the upper end of the lever portion 7. A cutout hole 10 is formed at the lower end of the support frame 11, and the cutout hole 10 is rotatably positioned and supported by a support bolt 14 fixed to a support member 13 on the floor surface 30 side. The upper end of the pedestal 12 is fixed to the instrument panel 1 via guide pins 15 and fixing screws 16, and the upper portion of the support frame 11 is fixed to the reinforcement 19 via bolts 20. Further, the lower end of the support frame 11 is fixed to the floor surface 30 side by a bolt 30a.

A plate 17 is provided on the lever portion 7 side, and an end portion of a shift wire 18 connected to the transmission side (not shown) is attached to the plate 17. By rotating the lever portion 7 in the front-rear direction of the vehicle, the transmission (not shown) is operated to a predetermined state via the transmission wire 18.

For example, in order from the front pivotal position of the lever portion 7, the parking position (P range), the reverse gear position (R range), the neutral position (N range), and the traveling state of the vehicle are automatically adjusted. The drive position (D range) for selecting the shift speed is set. Also, the lever portion 7 is D
It becomes possible to move in the vehicle width direction in the range, and by rotating forward or backward while moving in the vehicle width direction, it is possible to manually switch the shift speed at the drive position.

The lever portion 7 is provided with a detent pin 21 which is operated downward by pressing a button (not shown) against the spring force. The detent pin 21 is moved upward by the spring force when the button is not pressed. It is biased and fits into the groove 22a of the detent plate 22. The groove 22a of the detent plate 22 is formed stepwise according to P, P, N, and D. By fitting the detent pin 21 into the groove 22a of the detent plate 22, for example,
Rotation of the lever portion 7 is restricted between the ranges except between the D range and the N range. That is, when the lever portion 7 is operated from the P range to the R range or the D range, a button (not shown) is pressed and the groove 22a of the detent plate 22 is pressed.
The lever portion 7 is rotated with the detent pin 21 disengaged from the lever portion 7.

In addition to the above-mentioned detent mechanism, the detent mechanism 2 for giving a feeling of moderation to the turning operation of the lever portion 7.
4 is provided and the detent mechanism 24 is the subject of the present invention. The detent mechanism 24 will be described. A plate spring 23 is attached to the plate 17, and a detent mechanism 24 is provided at the tip of the plate spring 23. Also,
The pedestal 12 is integrally provided with a second detent plate 25 against which a detent mechanism 24 is pressed by the urging force of a leaf spring 23. The second detent plate 25 is provided with a second detent plate 25 at each rotational position (P, P, N, D). 4), four recesses 26 are formed in accordance with the above. By the turning operation of the lever portion 7, the detent mechanism 24 biased by the leaf spring 23 is sequentially fitted into the concave portion 26 of the second detent plate 25, so that the turning operation of the lever portion 7 is given a moderation feeling. Has become.

The structure of the detent mechanism 24 is shown in FIGS.
It will be described based on. 4 is a plan view of the support portion of the detent mechanism 24, FIG. 5 is a view taken along the line VV in FIG. 4, and FIG. 6 is a view taken along the line VI-VI in FIG. Further, FIG. 7 shows a cross section showing a modified example of the grease reservoir.

The detent mechanism 24 is mounted on a plate spring 23 (supporting member) provided on a plate 17 (see FIG. 3: moving member) that moves in conjunction with the operation of a lever portion 7 (see FIG. 3) as a shift lever. It is equipped. The detent mechanism 24 rolls in a recess 26 (see FIG. 3: detent groove) formed in a second detent plate 25 (see FIG. 3) provided on the pedestal 12 (see FIG. 3: fixing member side). , Gives a feeling of moderation to the turning operation of the lever portion 7 (see FIG. 3).

As shown in FIG. 4, a forked portion 61 is formed at the tip of the leaf spring 23, and a pin 62 is formed on the forked portion 61.
Is fixed. As shown in FIG. 5A, both ends of the pin 62 are fixed by bending the tip of the forked portion 61. Further, as shown in FIG. 5B, both ends of the pin 62 can be crushed to fix both ends of the pin 62 to the forked portion 61.

As shown in FIG. 6, a resin roller 63 as a roller member is rotatably supported on the pin 62,
A circular arc groove 64 is formed on the outer circumference of the roller 63. An O-ring 65 as an elastic member is fitted in the circular arc groove 64. A grease reservoir 66 as a lubricant reservoir is formed at the bottom of the arcuate groove 64, and the grease reservoir 66 is filled with grease as a lubricant.

By filling the bottom of the O-ring 65 with grease, the O-ring 65 is rotatable relative to the roller 63. The roller 63 is movably supported in the axial direction of the pin 62 (rotation center axis direction), and
The outer diameter of the O-ring 65 is larger than the outer diameter of No. 3.

The pin 62, the roller 63, and the O-ring 65 constitute the second detent pin 24. Second
The detent pin 24 has a recess 26 (see FIG. 3) in which an O-ring 65 is formed in the second detent plate 25 (see FIG. 3).
(See FIG. 3) and the roller 63 rotates with respect to the pin 62 to roll the recessed portion 26 (see FIG. 3). For this reason,
The entire circumference of the O-ring 65 contacts the recess 26 (see FIG. 3),
Wear of the O-ring 65 can be reduced.

Further, since the O-ring 65 is rotatable relative to the roller 63, even if the surface of the recess 26 (see FIG. 3) is rough and the O-ring 65 and the roller 63 are in contact with each other, respectively. , The O-ring 65 and the roller 63 rotate relative to each other, so that the second detent pin 24 can be smoothly and smoothly rolled. Further, since the diameter of the O-ring 65 is larger than the diameter of the roller 63, the O-ring 65 is always in contact with the contact surface of the recess 26 (see FIG. 3), and the tapping sound is prevented. Therefore, it is not necessary to strictly control the accuracy of the contact surface of the recessed portion 26 (see FIG. 3).
The detent plate 25 (see FIG. 3) can be easily manufactured.

Further, since the roller 63 is movable in the direction of the central axis of rotation, even if a force is applied in the lateral direction when the lever portion 7 (see FIG. 3) is operated and a tilting force acts on the roller 63, the recess 26 A rollable contact to (see FIG. 3) is maintained.

A modification of the grease reservoir will be described with reference to FIG. In the structure shown in FIG. 7A, a square groove 71 is formed on the outer periphery of the roller 63, and an O-ring 65 is fitted into the square groove 71 to form a grease reservoir 72 at a corner portion of the gap with the O-ring 65. Has been done. In the structure shown in FIG. 7 (b), an elliptical arc groove 73 is formed on the outer periphery of the roller 63, and the arc groove 73 is O-shaped.
The ring 65 fits and the grease is stored in the gap 74 with the bottom.
Are formed. What is shown in FIGS. 7 (a) and 7 (b) is also shown in FIG.
It has the same operation and effect as the structure shown in FIG.

On the other hand, the roller 6 shown in FIG.
3 is formed of a material having a self-lubricating property, an arc groove 75 having substantially the same diameter as the O ring 65 is formed on the outer periphery of the roller 63, and the O ring 65 is fitted in the arc groove 75 without a gap. Since the roller 63 is formed of a material having a self-lubricating property, the roller 63 and the O-ring 65 can be rotated relative to each other without forming a special grease reservoir.

In the embodiment described above, the lever portion 7
Detent mechanism 2 for giving a feeling of moderation to the operation of
Although 4 has been described as a detent mechanism, it is also applicable to a detent mechanism for restricting the operation of the shift lever and giving a feeling of moderation.

The detent mechanism 2 of the above-described shift operating device
As shown in FIG. 4 to FIG.
3 is rotatably supported, and an arc groove 64 is provided on the outer circumference of the roller 63.
Since the O-ring 65 is formed so as to be relatively rotatable, the entire circumference of the O-ring 65 is covered by the second detent plate 25.
By contacting the recess 26 (see FIG. 3) (see FIG. 3), wear of the O-ring 65 can be reduced. As a result, it is possible to obtain a gear shift operating device that achieves a detent mechanism having a cushioning action at a low cost and in a state where the components such as the O-ring 65 have a long life.

The second detent plate 25 (see FIG. 3)
Even when the surface of the recess 26 (see FIG. 3) (see FIG. 3) is rough and the O-ring 65 and the roller 63 contact each other, the O
The ring 65 and the roller 63 rotate relative to each other so that the second detent pin 24 rolls smoothly and smoothly.
In addition, since the outer diameter of the O-ring 65 is large, the recess 2 of the second detent plate 25 (see FIG. 3) is formed.
The O-ring 65 is always in contact with the contact surface 6 (see FIG. 3) to prevent tapping noise. Further, since the roller 63 is movable in the direction of the central axis of rotation, even if a tilting force acts on the roller 63, the rollable contact with the recess 26 (see FIG. 3) is maintained.

[0031]

According to the first aspect of the present invention, the detent mechanism is constructed by rotatably supporting the roller member rolling in the detent groove on the support member and fitting the elastic member to the roller member so as to be relatively rotatable. Therefore, even if the surface accuracy of the detent groove is insufficient, the roller member and the elastic member do not come into contact with the detent groove, and an unreasonable force does not act on the elastic member. The rotation is smooth. As a result, it is possible to provide a gear shift operating device that achieves a detent mechanism having a cushioning action at a low cost and with a long component life.

Further, on the outer periphery of Russia over La member is formed an annular groove in which the elastic member fits, since in the annular groove are formed sump lubrication oil lubricating oil is retained, the roller member and an elastic The member and the member can be rotated relative to each other through the lubricant, and the relative rotation of the elastic member can be performed more smoothly.

According to the second aspect of the present invention, since the roller member is formed of a material having self-lubricating properties, the roller member and the elastic member can be rotated relative to each other without providing a special structure.

According to a third aspect of the present invention, the roller member is movably supported by the support member in the direction along the rotation center axis, and the outer peripheral diameter of the elastic member is larger than the outer peripheral diameter of the roller member. Therefore, even if the surface of the detent groove is rough, the elastic member comes into contact with the surface and it is possible to prevent tapping noise.

[Brief description of drawings]

FIG. 1 is a front view showing the vicinity of an instrument panel of a vehicle equipped with a gear shift operation device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a shift operation device.

FIG. 3 is a cross-sectional view of a shift operating device.

FIG. 4 is a plan view of a supporting portion of the detent mechanism.

5 is a view taken along the line V-V in FIG.

6 is a view taken along the line VI-VI in FIG.

FIG. 7 is a sectional view showing a modified example of the grease reservoir.

[Explanation of symbols]

1 Instrument panel 5 Console panel 6 Shift lever device 8 shift panels 9 Shift lever knob 10 Notch holes 11 Support frame 12 pedestals 13 Support members 14 Support bolt 15 guide pins 16 fixing screws 17 plates 18 speed change wire 19 Reinforce 21 Detent Pin 22 Detent plate 23 leaf spring 24 detent mechanism 25 Second Detent Plate 26 recess 62 pin 63 Roller 64 circular groove 65 O-ring 66 grease pool

Front page continued (72) Inventor Tsuneo Aoyama 2 22-1, Takakuma, Sobue-cho, Sobue-cho, Nakajima-gun, Aichi Prefecture Sakae Riken Kogyo Co., Ltd. (56) Reference JP-A-8-247361 (JP, A) Flat 7-224945 (JP, A) Actual Open 63-107017 (JP, U) Actual Open 6-69514 (JP, U) Actual Open Flat 4-107563 (JP, U) Actual Open 63-81795 (JP , U) Actual Kaihei 4-99452 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60K 20/00-20/08 F16H 59/00-59/12 G05G 1/00 -25/04 F16J 15/16-15/30 F16J 15/46-15/52

Claims (3)

(57) [Claims] 1. A shift operating device having a detent mechanism for giving a detent feeling to the operation of a shift lever, wherein the detent mechanism has a detent groove formed on a fixed member side and a movement that moves in conjunction with the operation of the shift lever. A support member provided on the member side, a roller member rotatably supported by the support member and rolling in the detent groove, and an elastic member fitted to the roller member so as to be rotatable relative to each other. Do Ri, the outer periphery of the roller member annular elastic member is fitted
A groove is formed and a lubricating oil is retained in the annular groove.
A lubricating oil reservoir is formed that is held in the annular groove.
By fitting the elastic member, the roller member and the
A gear shift operation device, wherein the elastic member and the elastic member are rotatable relative to each other. 2. The roller member according to claim 1,
Characterized by being formed of a self-lubricating material
Gear change operation device. 3. The roller member according to claim 1, wherein the roller member is a front member.
Can be moved in the direction along the rotation center axis with respect to the support member
And the outer diameter of the elastic member is supported by the roller member.
Is larger than the outer diameter of
Speed control device.