JP3178683B2 - Shift lever device for transmission - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lever device for a transmission, and more particularly, to a shift lever housing made of a synthetic resin for supporting a ball portion in the middle of a lever shaft of a shift lever through a sheet member. The present invention relates to a shift lever device for a transmission having a support portion integrally formed with the transmission.

[0002]

2. Description of the Related Art A transmission has, for example, a transmission gear train in a transmission case, and the transmission gear train is provided with a plurality of switching mechanisms for switching the meshing state.

A shift mechanism that operates these switching mechanisms to switch the meshing state of the transmission gear trains supports a shift shaft group, one end of each of which is engaged with the switching mechanism, on a transmission case. A shift yoke group is provided on the end side. A shift and select lever at one end of the remote control shaft is selectively engaged with the shift yoke group. The other end of the remote control shaft communicates with the shift lever. By performing a select operation and a shift operation of the shift lever, the meshing state of the transmission gear train is switched.

The shift lever of the shift mechanism is pivotally supported by a shift lever housing.

As a shift lever device for a transmission, Japanese Patent Laid-Open Publication No. 2-229950, Japanese Utility Model Laid-Open Publication No. 2-127846, Japanese Utility Model Laid-Open Publication No. 64-41436, and Japanese Utility Model Laid-Open Publication No. 64-43428 disclose. ing.

For example, a shift lever support device for a transmission disclosed in Japanese Patent Application Laid-Open No. 2-229950 is a support device for operating a floor remote control type transmission, which comprises a cylindrical shift lever mounting portion and a shift lever mounting portion. A retainer portion provided continuously and divergently at the portion, a shift lever plate provided continuously at a divergent end of the retainer portion, and a swing rotation holding portion of the shift lever provided around the circumference of the shift lever mounting portion. It is formed integrally to reduce the number of parts, improve workability, and reduce weight.

[0007]

In a conventional shift lever device for a transmission, a support portion is formed integrally with a shift lever housing using a synthetic resin, and the shift lever can be swingably rotated by the support portion. I support it.

That is, a seat member is mounted in a support portion, a ball portion provided on a lever shaft of a shift lever is positioned in the seat member, and the shift lever is supported by the support portion via the sheet member. is there.

However, the shift lever is supported only by the support portion integrally formed with the shift lever housing.

As a result, the rigidity of the support portion is low, and the support portion may be damaged during the operation of the shift lever. As a result, the shift lever may become inoperable, which is inconvenient to use.

[0011]

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned disadvantages, the present invention is to integrate the shift lever housing with a synthetic resin so as to support a ball portion provided on the lever shaft of the shift lever via a sheet member. In the shift lever device for a transmission having the formed support portion, the cylindrical support portion protruding upward from the shift lever housing is formed, and the cylindrical support portion is formed outside the support portion and at a position facing the upper surface of the shift lever housing. The first and second engaging portions are formed so as to protrude upward, respectively, and the shift lever is provided with a cylindrical opening end side so as to hold the upper portion of the sheet member and cover the supporting portion in order to improve support rigidity. A third and third caps are provided outside the cap to protrude outwardly and in a position facing each other, the cap being engaged to a position in contact with the upper surface of the housing to form a double structure. The engaging portion is formed, the fourth of the first engagement portion of the support portion after engagement of the cap portion and the second engaging portion of the third engaging portion and the supporting portion of the cap and the cap portion to the support portion
It is characterized in that the engaging portions are provided with pins that respectively engage.

[0012]

According to the invention as described above, the upper portion of the seat member is held by the cap portion and is engaged with the support portion, so that the rigidity of the shift lever is improved as a double structure.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

1 to 3 show an embodiment of the present invention. In FIG. 1, reference numeral 2 denotes a shift lever device of a manual transmission, not shown.

The shift lever device 2 has a shift lever 4 and a shift lever housing 6. The shift lever 4 includes a lever shaft 8, a knob 10 screwed to one end of the lever shaft 8, a ball 12 formed in the middle of the lever shaft 8, and a projection 1 projecting outward from the ball 12.
4

The shift lever housing 6 is formed of a synthetic resin, and a support portion 16 for supporting the lever shaft 8 of the shift lever 4 is formed integrally with the shift lever housing 6.

As shown in FIGS. 1 to 3, the support portion 16 is formed in a tubular shape, that is, a bottomed tubular shape so as to protrude upward from the box-shaped raised portion 6a of the shift lever housing 6, and has an outer surface portion. A notch 18 is formed in a portion of the support portion 16, and a rectangular insertion hole 20 smaller than the opening area of the support portion 16 is formed in the bottom surface portion.

First and second engagement portions 22-1 and 22-2 are formed to protrude upward at positions outside the support portion 16 and opposite to the upper surface of the raised portion 6a of the shift lever housing 6, respectively. One small-diameter hole 24 is formed in the first engagement portion 22-1, and two large-diameter holes 26 and small-diameter holes 28 having different sizes are formed in the second engagement portion 22-2. Form each.

Further, a sheet member 30 for holding the ball portion 12 of the lever shaft 8 of the shift lever 4 is formed. The sheet member 30 may be formed integrally as shown in FIG. 1 or may be formed of two separate sheet members 30-1 and 30-2 as shown in FIG. And
The seat member 30 is positioned inside the support portion 16, and a cap portion 34 is mounted on the upper portion of the seat member 30 via a rubber-made annular cushion 32.

The cap portion 34 holds the upper portion of the sheet member 30 and covers the support portion 16 so as to improve the support rigidity. The shift lever housing 6 has a double structure in which the shift lever housing 6 is engaged to a position where it comes into contact with the upper surface.

More specifically, the cap portion 34 is provided as shown in FIG.
As shown in FIG. 2 and FIG. 2, the inner diameter is formed in a closed cylindrical shape slightly larger than the outer diameter of the support portion 16, a notch portion 36 is formed in a part of the outer surface portion, and a cap portion 34 is formed in the upper surface portion. A rectangular insertion hole 38 smaller than the opening area is formed.

On the outside of the cap portion 34, third and fourth engagement portions 40-1 projecting outward and at positions facing each other are provided.
40-2, and the third and fourth engagement portions 40-1, 40-
2, one small-diameter holes 42 and 44 are formed.

Reference numeral 46 denotes a control arm engaged with the projection 14 of the shift lever 4, reference numeral 48 denotes a return spring for the control arm 46, and reference numeral 50 denotes a large diameter hole of the control arm 46 in the second engagement portion 22-2. Part 26
A shaft portion 52, which is pivotally supported by the shaft, 52 is a positioning portion formed to protrude from the outer periphery of the cap portion 34 in order to perform positioning of the return spring 48, and 54 is a first and third engagement portion 22-.
Reference numerals 1 and 40 denote spring pins that pass through the small-diameter holes 24 and 42, and reference numeral 56 denotes spring pins that pass through the small-diameter holes 28 and 44 of the second and fourth engagement portions 22-2 and 40-2.

Next, the assembly of the shift lever 4 will be described.

The control arm 4 is mounted on a projection 14 formed on the ball 12 in the middle of the lever shaft 8 of the shift lever 4.
6 and the other end of the lever shaft 8 is supported from above by the support 1 so that the protrusion 14 matches the notch 18 of the support 16.
6 into the insertion hole 20.

At this time, a sheet member 30 is provided between the outer periphery of the ball portion 12 of the lever shaft 8 and the inner periphery of the support portion 16.

Then, the cushion 32 is inserted from one end of the lever shaft 8, and then the notch 36
And the knob 10 is screwed to one end of the lever shaft 8. At this time, the cap portion 34 has a cylindrical opening end side covered with the raised portion 6 a of the shift lever housing 6 so as to cover the support portion 16.
It is engaged to the position where it contacts the upper surface.

The first and third engaging portions 22-1, 40-
The spring pin 54 is inserted through the small diameter holes 24 and 42, and the spring pin 56 is inserted through the small diameter holes 28 and 44 of the second and fourth engagement portions 22-2 and 40-2.

Further, the control arm 46 is positioned in the large diameter hole 26 of the second engaging portion 22-2 via the return spring 48, and the control arm 46 is supported by the shaft 50.

In general, the rigidity of resin is less than that of metal, but with the above construction, the spherical portion 12 formed on the lever shaft 8 of the shift lever 4 has a bottomed cylindrical shape. Can be supported by a double structure of the supporting portion 16 and the cylindrical cap portion 34 fitted on the outer periphery of the supporting portion 16, the supporting rigidity can be improved, and the supporting portion at the time of operating the shift lever can be improved. Damage can be reliably prevented,
Usability can be improved. In particular, since the support portion 16 has a cutout portion 18 formed in a part thereof, the rigidity is reduced. However, the opening end side of the cap portion 34 is formed on the upper surface of the raised portion 6a of the shift lever housing 6. And the first engaging portion 22-1 of the support portion 16 and the third engaging portion 40 of the cap portion 34 after the cap portion 34 engages with the support portion 16. -1 and the second engaging portion 22-2 of the support portion 16 and the fourth portion of the cap portion 34.
The spring pins 54 and 5 respectively engaging with the engagement portions 40-2
6, the cap portion 34 is firmly fixed without loosening, which is practically advantageous. In addition, since the shift lever 4 acts as a lever with the ball 12 as a fulcrum, if the rigidity of the ball 12 decreases, the operation feeling deteriorates. However, the rigidity is improved by the double structure. And a good feeling can be obtained.

The cap portion 3 is provided on the outer periphery of the support portion 16.
4 makes it possible to improve the assemblability, which is practically advantageous. In addition, there is no fear that the structure is unnecessarily complicated, the production is easy, and the cost is reduced. It is economically advantageous.

The present invention is not limited to the above-described embodiment, but can be variously modified.

For example, in the embodiment of the present invention, the cap portion is fitted to the outer peripheral portion of the support portion to form a double structure, but the end portion of the cap portion is inserted into the support portion, It is also possible to make a double structure by a measure.

[0034]

As described above in detail, according to the present invention, the cylindrical support portion protruding upward from the shift lever housing is formed, and is provided outside the support portion and at a position facing the upper surface of the shift lever housing. The first and second engagement portions are formed so as to protrude upward, respectively, and the cylindrical opening end side of the shift lever housing is formed so as to hold the upper portion of the sheet member and cover the support portion to improve the support rigidity. Provide a cap part that is engaged to the position that comes into contact with the upper surface and has a double structure,
Third and fourth engaging portions protruding outward and at positions facing each other are formed outside the cap portion, and after the engagement of the cap portion with the supporting portion, the third engagement portion between the first engaging portion of the support portion and the cap portion is formed. Pins are provided for engaging the second engaging portion of the mating portion and the supporting portion and the fourth engaging portion of the cap portion, respectively. Generally, resin is less rigid than metal, but due to the above-described configuration, the spherical portion formed on the lever shaft of the shift lever can be formed into a cylindrical support portion and this support portion. It can be supported by a double structure with a cylindrical cap portion that engages so as to cover, so that the support rigidity can be improved, and damage to the support portion during the operation of the shift lever can be reliably prevented, so that it is easy to use. Can be improved. In particular, the opening end side of the cap portion can be engaged to a position where it contacts the upper surface of the shift lever housing, and after the cap portion is engaged with the support portion, the first engagement portion of the support portion and the cap Can be fixed by spring pins respectively engaging the third engaging portion of the portion, the second engaging portion of the support portion, and the fourth engaging portion of the cap portion, and the cap portion is firmly fixed without loosening. This is practically advantageous. In addition, the shift lever has a double structure, whereby the rigidity of the ball portion is improved, and a good feeling can be obtained. Further, by adopting a configuration in which the cap portion is engaged with the support portion, the assemblability can be improved, which is advantageous in practical use, and there is no fear that the configuration is unnecessarily complicated. It is easy, can be inexpensive, and is economically advantageous.

[Brief description of the drawings]

FIG. 1 is an assembly view of a shift lever device of a transmission showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of a ball portion of a shift lever.

FIG. 3 is an enlarged plan view of a ball portion of the shift lever.

[Explanation of symbols]

 2 shift lever device 4 shift lever 6 shift lever housing 8 lever shaft 10 knob 12 ball portion 16 support portion 30 seat member 32 cushion 34 cap portion

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiro Osawa 87-7 Kitaura, Futagawa-cho, Toyohashi-shi, Aichi (56) References JP-A-2-229950 (JP, A) U) Fully open 49-148620 (JP, U) Fully open 1-41436 (JP, U) Fully open 1-43428 (JP, U) Fully open 1-127846 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) F16H 59/00-61/12 F16H 61/16-61/24 F16H 63/40-63/48

Claims (1)

(57) [Claims] 1. A shift lever device for a transmission having a support portion integrally formed on a shift lever housing with a synthetic resin to support a ball portion provided on a lever shaft of a shift lever via a sheet member, wherein the shift lever housing is provided.
Forming the cylindrical support portion projecting upward from the
The outer surface of the support portion and the upper surface of the shift lever housing face each other.
The first and second engagement portions are projected upward at the positions where
A cylindrical opening end side is formed to cover the support portion so as to hold the upper portion of the sheet member and improve support rigidity.
Until it comes into contact with the upper surface of the shift lever housing.
In providing the cap portion to be engaged with the double structure, the cab
The second protruding outward and outwardly
3. Forming a fourth engagement portion, and attaching the cap portion to the support portion.
After the engagement, the first engagement portion of the support portion and the third engagement portion of the cap portion
And a second engaging portion of the support portion and a fourth engaging portion of the cap portion.
A shift lever device for a transmission, comprising pins that engage with each other .