JP3193002B2 - A / T shift lever device for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle A / T (automatic transmission) shift lever device having + and-ranges before and after an M range, and particularly to a vehicle A / T shift lever which is easy to assemble. Related to shaft structure.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show a state in which a shift lever 3 is swung to an M range. The M range is a range in which the gears of the automatic transmission are not automatically shifted. When the shift lever 3 is disposed in this range, a flange 3 a extending in a substantially horizontal direction from an intermediate portion of the shift lever 3 is engaged with an engaging portion 4 a provided at an upper end of the link 4. The link 4 is interlocked by swinging the shift lever 3 in the front-rear direction of the vehicle. A position detection switch (not shown) is provided in the vicinity of the link 4 so as to detect the position of the link 4 in the vehicle longitudinal direction. In the shift lever device having such a configuration, by operating the shift lever 3 to the M range and moving the shift lever 3 to the + and − ranges set in the longitudinal direction of the vehicle in the M range, the position detection switch causes the position of the shift lever 3 to move. Can be detected, and the gear of the automatic transmission can be switched by the electronic control unit. The procedure for assembling the shift lever 3 and the like to the base plate 1 is as follows. The link 4 is arranged inside the base plate 1, and the shaft 2 is inserted through the hole 1 a provided in the base plate 1 and the hole of the cylindrical portion 4 b of the link 4. The washer 6 and the nut 7 are fixed to the tip of the shaft 2. Then, a shift lever 3 is attached to an intermediate portion of the shaft 2 (a hole provided in the shaft 2 and a hole at the lower end of the shift lever are inserted with a pin 8). Is small, and the end 2a of the large diameter portion of the shaft 2 restricts the movement of the link 4 toward the shift lever 3.

[0003]

However, the conventional A / T shift lever device for a vehicle has the following problems. The link is not fixed, and the assembly is poor. Since the base plate cannot be tapered, the assemblability of the shaft is poor. Accuracy is required for machining the small diameter portion of the shaft, which increases costs. An object of the present invention is to provide an A / T shift lever device for a vehicle in which a shaft and a link can be easily assembled.

[0004]

The present invention to achieve the above object is as follows. (1) A base plate, a shaft fitted in a hole formed in the base plate so as to be rotatable in the vehicle front-rear direction, a shift lever connected to the shaft so as to be rotatable in the vehicle left-right direction, A link movably fitted with the cylindrical portion and a link portion extending from the cylindrical portion in a direction perpendicular to the cylindrical portion and capable of being disengaged from the shift lever, the link being rotatable in the vehicle longitudinal direction. Wherein the link extends radially outward from the cylindrical portion in a radial direction.
An arm from the outer edge extending parallel to the shaft, has a claw provided at a distal end of the arm, the base <br/> plate, the the outer circumferential side of the hole where the shaft is fitted
Has a engaging hole extending in an arc on a circle centered on the center of the hole, the pawl of the rotatable link, said engagement hole
Movable about the center of the hole into which the shaft is fitted,
An A / T shift lever device for a vehicle, wherein the A / T shift lever device is restrained and engaged in a shaft axial direction . (2) The vehicle A / according to (1), wherein the cylindrical portion of the link has a tapered portion whose inner diameter increases toward an end of the cylindrical portion on a side where the claw is not provided. T shift lever device.

[0005] In the vehicle A / T shift lever device of the above (1), the link can be positioned and supported with respect to the base plate by engaging the pawl of the link with the engaging hole of the base plate. The shaft is easier to assemble than a conventional case where the link is not positioned and supported with respect to the base plate . In the vehicle A / T shift lever device of the above (2), the end of the cylindrical portion of the link on which the pawl is not provided (the end on the shaft insertion side when the shaft is assembled) is directed toward the end. Is provided with a taper whose diameter increases.
The shaft can be easily inserted into the cylindrical portion of the link. This makes assembly of the shaft easier.

[0006]

1 to 4 show an A / T shift lever device for a vehicle according to an embodiment of the present invention. The vehicle A / T shift lever device according to the embodiment of the present invention has a base plate 1.
0, a shaft 20, a shift lever 30, and a link (switching link) 40.

The base plate 10 is made of resin. Round holes 13, 14 for rotatably supporting the end of the shaft 20 are formed in both side walls 11, 12 of the base plate 10 in the vehicle left-right direction. An insertion hole 15 through which the swingable shift lever 30 is inserted is formed in the upper end surface of the base plate 10. The insertion hole 15 has a long hole 15a extending straight or zigzag in the vehicle longitudinal direction and a short hole 15b extending in the vehicle longitudinal direction.
And a hole 15c communicating the hole 15a with the hole 15b. The hole 15a is provided with a range such as P, R, N, D, 2, L, and the like, and the hole 15b is provided with an M (manual) range. And + and-ranges are provided before and after the vehicle. The hole 15c connects the D range and the M range.

[0008] The shaft 20 extends in the horizontal direction,
The ends are fitted and supported in the holes 13 and 14 of the base plate 10 so as to be rotatable in the vehicle longitudinal direction. Shaft 2
Numeral 0 is formed to have a single diameter except for the end portion, and does not have a step portion for preventing the link 40 from moving toward the shift lever 30 by hitting the end surface of the link 40 as in the related art. The shaft 20 has a head 21 at one end and a reduced diameter portion 22 at the other end. The shaft 20 is inserted from the hole 14 side, and the head 2
1 hits the edge of the hole 14 and stops. At that time, the other end of the shaft is inserted through the hole 13, and the push nut 23 is mounted on the reduced diameter portion 22 to prevent the shaft 13 from coming off. In this state, the shaft 20 is slidable in the rotation direction with respect to the inner surfaces of the holes 13 and 14, and the shaft 20 is
It is rotatable in the vehicle front-rear direction with respect to zero.

The shift lever 30 has a forked portion 3 at its lower end.
At 1, it is attached to the shaft 20 by a pin 32 inserted into a hole extending in a direction orthogonal to the shaft 20, and is connected to the shaft 20 so as to be rotatable around the pin 32, and thus rotatable in the lateral direction of the vehicle. . The shift lever 30 extends upward through the insertion hole 15 at the upper end of the base plate 10. 1 and 4 show a shift lever 30.
Indicates a state in the M range. A flange 33 projecting toward the link 40 is formed at an intermediate position in the longitudinal direction of the shift lever 30, and a tip 34 of the flange 33 on the link 40 side can be disengaged from the upper end of the link 40. The shift lever 30 is engaged with the upper end of the link 40 when the shift lever 30 is shifted to the M range. Flange 33
A pin boss portion 35 is formed in the middle of the frame, and a pin 36 is slidably inserted therein. Pin 36 is spring 3
7, the uneven portions 16 formed on the base plate 10
Is being biased toward. The sliding contact between the pin 36 and the uneven portion 16 provides a sense of moderation when the shift lever 30 is moved in the left-right direction of the vehicle.

The link 40 includes a cylindrical portion 41 into which the shaft 20 is inserted and rotatably fitted to the shaft 20, and a cylindrical portion 4.
1 and a link portion 42 integrally provided and extending outward from the cylindrical portion 41 in the radial direction of the cylindrical portion. Link 4
0 is rotatable in the vehicle longitudinal direction with respect to the shaft 20. When the shift lever 30 is in the M range, the flange 3
3 is engaged with the upper end of the link portion 42, and when the shift lever 30 swings in the +/- range in the vehicle longitudinal direction, the link 40 also swings in the vehicle longitudinal direction in conjunction therewith. You.

The moderating member 43 is connected to the link 4 via a member 44.
When the link 40 swings in the vehicle longitudinal direction, the link 40 moves in the vehicle longitudinal direction in conjunction therewith. The pin 45 is urged downward from the base plate 10 by a spring 46, and the lower end of the pin 45 comes into sliding contact with an uneven portion formed on the upper surface of the moderating member 43. The concave and convex portion on the upper surface of the moderating member 43 has a concave portion 43a at the center, has mountain portions 43b and 43c on both sides in the vehicle front-rear direction, and further has a slope 43d that descends as the distance from the concave portion 43a in the vehicle front and rear direction.
43e. When the shift lever 30 is in the M range, the pin 45 is in the concave portion 43a of the moderating member 43. When the shift lever 30 swings from the M range to the + range and the-range, the pin portion 43b of the moderating member 43, 43
When c pushes the pin 45, a sense of moderation can be obtained. Reference numeral 17 denotes a hole formed in the base plate 10, through which the contact between the pin 45 and the moderating member 43 can be seen.

The link 40 extends radially outward from the cylindrical portion 41 at or near the end of the cylindrical portion 41 of the link 40 remote from the shift lever 30 and extends parallel to the shaft 20 from the radially outer end. The arm 47 includes an arm 47 extending through the base plate side wall 11 in a direction away from the arm 30 and a claw 48 provided at a tip of the arm 47. It is desirable that the number of the arms 47 having the claws 48 is plural, and in the illustrated example, it is two. The cylindrical portion 41 of the link 40 has an end face 49 at an end remote from the shift lever 30.

On the other hand, the base plate 10
Has an engaging hole 18 having an edge portion engageable with a claw 48 of the link 40 on the outer peripheral side of the hole 13 into which the shaft 20 is fitted. The number of the engagement holes 18 is the same as the number of the arms 47, and is two in the illustrated example. The engagement hole 18 extends in an arc on a circle centered on the center of the hole 13 serving as a bearing of the shaft 20, and an enlarged hole 19 having a size through which the claw 48 can be inserted is provided at one end of the arc. Is formed. Except for the enlarged hole 19, the interval between the outer diameter and the inner diameter of the engaging hole 18 is smaller than the claw 48,
It is larger than the arm 47. Therefore, after the nail 48 is aligned with the position of the enlarged hole 19 and the nail 48 is inserted through the enlarged hole 19, the link 40 is rotated to move the nail 48 to the enlarged hole 1.
By bringing the engagement hole 18 to a position other than 9, the claw 48 is engaged with the edge of the engagement hole 18 in the shaft axial direction.
At this time, by setting the axial distance between the claw 48 and the end surface 49 so that the end surface 49 of the cylindrical portion 41 of the link 40 just engages with the inner surface of the side wall portion 11 of the base plate 10, the link 40 is connected to the base plate. Shaft axis direction to 10
Be bound by.

The inner diameter of the cylindrical portion 41 of the link 40 is increased toward the end 50 (the end closer to the shift lever 30) of the cylindrical portion 41 on which the pawl 48 is not provided. The tapered portion 51 is formed.

Next, the operation will be described. Assembling of the link 40, the shaft 20, and the shift lever 30 is performed as follows. First, in FIGS. 1 and 3, the link 40 is inserted into the space between the side walls 11 and 12 of the base plate 10 from below. Next, the pawl 48 of the link 40 is aligned with the enlarged hole 19 of the engagement hole 18, and the pawl 48 is inserted through the enlarged hole 19, and the pawl 48 is taken out of the base plate side wall 11, and the link 40 is rotated in this state. Then, the pawl 48 is engaged with the edge of the portion of the engaging hole 18 other than the enlarged hole 19, and at the same time, the end surface 49 of the link cylindrical portion 41 is engaged with the inner surface of the base plate side wall portion 11, thereby connecting the link 40 to the base plate. the side wall portion 11, and the center of the link cylindrical portion axis and the hole 13 is Ru is positioned to automatically coincide.

Next, from the outside of the base plate 10,
The shaft 20 has a reduced diameter end 22 and a hole 14 in one side wall 12.
Through the hole of the cylindrical portion 41 of the link 40, the hole 13 of the other side wall 11, and the head 21 into the hole 14.
Abut the end of the boss at the edge of. At this time, the shaft 20
Because of the reduced diameter end 22 out of the base plate 10 is inserted through the hole 13, there is mounted a push nut 23, you disable off leaves the shaft 20 in the axial direction of the shaft.

Conventionally, since the link is not positioned , it is not easy to insert the shaft 20 into the link cylindrical portion at a part that cannot be seen. However, in the embodiment of the present invention, the link 40 is inserted into the hole 13 before the shaft is inserted. is positioned so positioned on the base plate 10 with respect to,
Just by inserting the shaft 20 concentrically into the hole 14 and pushing it in, the shaft 20 can be automatically inserted into the link cylindrical portion 41, and the insertion operation is easy. In addition, the link cylindrical portion 41
By forming the taper 51 on the inner surface of the end portion 50, the insertion of the shaft 20 into the cylindrical portion 41 is further facilitated.

Insertion of shaft 20, axial direction of shaft 20
After constraints direction is completed, insert the shift levers 30 from above, thereby span the bifurcated portion 31 on the shaft 20, the pin 32
Is inserted through the forked portion 31 and the hole of the shaft 20, and the shift lever 30 is rotatably connected to the shaft 20.

As another operation, in the embodiment of the present invention, the link 40 is restrained by the pawl 48 on the base plate 10 in the axial direction of the shaft.
Movement to the side is regulated. For this reason, there is no need to provide a step on the shaft to restrict the movement of the link as in the prior art, so that the shape of the shaft 20 can be simplified, and step processing and diameter reduction of the fitting portion with the cylindrical portion can be reduced. , Resulting in cost reduction. In this embodiment, the shaft is restrained in the axial direction.
Though that, although using a push nut, instead of a push nut, cut the screw shaft may be a washer and nut.

[0020]

Effects of the Invention] According to the vehicle A / T shift lever device of claim 1, since the formation of the engagement holes in the base plate provided with a claw link, can link to the base plate at <br/> Positioning, At the time of assembling the shaft, it is easy to insert the shaft into the link cylindrical portion, and the assembling property can be improved.
Further, the rotatable link can be restrained in the axial direction by the claw, and there is no need to restrict the movement of the link by providing a step portion on the shaft as in the related art, so that the machining of the shaft can be simplified and the cost can be reduced. . According to the vehicle A / T shift lever device of the second aspect, since the inner surface of the end of the cylindrical portion of the link is tapered, the shaft can be easily inserted, and the assembling property can be further improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a part of a vehicle A / T shift lever device according to an embodiment of the present invention in a state where a shift lever is shifted to an M range.

FIG. 2 is a side view of the device part of FIG.

FIG. 3 is an enlarged view of a portion A in FIG. 2;

FIG. 4 is a perspective view of the device of FIG. 1;

FIG. 5 is a cross-sectional view of a part of a conventional vehicle A / T shift lever device in a state where a shift lever is shifted to an M range.

6 is a side view of the device of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base plate 18 Engagement hole 19 Enlarged hole 20 Shaft 30 Shift lever 40 Link 41 Cylindrical part 42 Link part 47 Arm 48 Claw 50 End part 51 Taper

Claims (2)

(57) [Claims] 1. A base plate; a shaft fitted in a hole formed in the base plate so as to be rotatable in a vehicle front-rear direction; a shift lever connected to the shaft so as to be rotatable in a vehicle left-right direction; A cylindrical portion rotatably fitted to the cylindrical portion and a link portion extending in a direction perpendicular to the cylindrical portion from the cylindrical portion and capable of being disengaged from the shift lever, and rotatable in the vehicle longitudinal direction. A / T shift lever device for a vehicle provided with a link, wherein the link extends radially outward from the cylindrical portion and has a radius
An arm extending parallel to the shaft from the outward end,
It has a pawl provided at a distal end of the arm, the base plate, the engaging hole extending in an arc on a circle centered on the center of the hole to the outer peripheral side of the hole where the shaft is fitted has, the pawl of the rotatable link, said Shah said engaging hole
Movable around the center of the hole into which the shaft
An A / T shift lever device for a vehicle, wherein the A / T shift lever device is restrained and engaged in a shaft direction . 2. The vehicle according to claim 1, wherein the cylindrical portion of the link has a tapered portion whose inner diameter increases toward an end of the cylindrical portion on a side where the claw is not provided. A
/ T shift lever device.