JPH0814385A - Shift control reversing mechanism of manual transmission - Google Patents

Abstract

PURPOSE:To enable a reversing block to be secured to a transmission case without an operator holding it in order to facilitate the assembling of the block to the transmission case by securing the reversing block to the transmission case with one end of the reversing block locked to a lock. CONSTITUTION:A freely-rocking reversing lever 2, both ends 23, 24 of which are locked respectively to first and second blocks 21, 22 which are secured to first and second shafts 11, 12 to serve as the points of application of reversing forces, is disposed within a transmission case 1 and supported at one end 41 of a reversing block 4 in such a way as to be able to rock. In this case, the other end 42 of the reversing block 4 is locked to a third shaft 13 constituting a lock 3, and is secured to the transmission case 1 at its center 43 by a bolt. The reversing block 4 is thus locked at two points at the end portion 42 and the center portion 43 and so firmly and stably held in position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention facilitates fixation to a mission case by locking the other end of a reversing block, which supports a reversing lever at one end thereof so as to be swingable, to a mission case. The present invention relates to a shift control reversing mechanism for a manual transmission that stably supports a reversing lever.

[0002]

2. Description of the Related Art A conventional manual transmission shift control reversing mechanism (Japanese Patent Laid-Open No. 62-62042).
No.), as shown in FIG. 6 and FIG.
The reversing lever L locked to S1 and S2 is directly rockably locked to the mission case C.

[0003]

In the above-mentioned conventional shift control reversing mechanism, the reversing lever L is directly locked to the mission case C. Therefore, when locking the reversing lever L, the operator holds the reversing lever L by hand. There is a problem that it is difficult to assemble the reversing lever L to the mission case C because it is necessary to work together.

Further, since the arranging position of the reversing lever L is restricted near the supporting portion of the shaft near the opening where the hand can be put, it is basically arranged at the intermediate portion in the longitudinal direction of the mission case. However, there is a problem that the cost and the weight are increased because the structure which can be arranged in the middle portion is limited to the one having the division structure divided in the middle portion.

Therefore, the present inventor has focused on the technical idea of the present invention in which the other end of the reversing block that swingably supports the reversing lever at one end is locked to the locking portion and fixed to the mission case. As a result of further research and development, the operator can fix the reversing block to the mission case without touching the reversing block. The present invention has been achieved which achieves the object of eliminating restrictions on the arrangement position and application structure in a case.

[0006]

The shift control reversing mechanism of the manual transmission according to the present invention is the first
First block and second for inversion fixed to the shaft of
A reversing second block fixed to the shaft of the reversing lever, both ends of which are rocked, and one end of which is rotatably supported by the reversing lever and the other end of which is locked by the locking portion. And a reverse block fixed to the mission case.

[0007]

In the shift control reversing mechanism of the manual transmission of the present invention having the above structure, the reversing block is fixed to the first shaft.
Block and the second shaft fixed to the second shaft
The reversing lever whose both ends are locked to the block is swingably supported at one end, and is fixed to the mission case in a state where the other end is locked to the locking portion.

[0008]

According to the shift control reversing mechanism of the manual transmission of the present invention having the above-described operation, the reversing block is fixed to the mission case in a state where the other end of the reversing block is locked to the locking portion. Since the worker can fix it to the mission case without touching the reversing block,
The effect of facilitating the assembling to the mission case is achieved, and the effect of increasing the cost and weight is eliminated by eliminating the restrictions on the arrangement position and the applied structure in the mission case.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) The shift control reversing mechanism of the manual transmission according to the first embodiment is
As shown in FIGS. 1 to 3, fixed to the first shaft 11 arranged in the mission case 1 and fixed to the first block 21 and the second shaft 12 which are the force points and action points of reversal. The reversing lever 2 whose both ends 23 and 24 are locked to the second block 22 which is the reversing force point and the action point and which swings, and the one end 41 which swingably supports the reversing lever 2 and the other end 42 The third shaft 1 is locked to the third shaft 13 that constitutes the locking portion 3,
3 and a reversing block 4 fixed to the mission case 1 by a bolt in the central portion 43 in a state of being suspended from the reversing lever 2 and the reversing block 4 in the longitudinal direction of the mission case 1. It is arranged in the section.

In the mission case 1, the first to third shafts 11, 12, 13 and the fourth and fifth shafts 14, 15 are arranged in parallel, respectively.
Forks for fifth speed and reverse are locked to the first shaft 11, and a member 131 mechanically connected to a shift lever (not shown) is arranged on the third shaft 13. Is installed and the fourth shaft 14 has 3
Forks for the first speed and the fourth speed are locked, and forks for the first speed and the second speed are locked to the fifth shaft 15.

The reversing lever 2 has both ends 23 and 24.
A spherical portion is formed on the first shaft 21 and the second shaft 12 fixed to the first shaft 11.
The second block 22 fixed to the second block 22 is fitted in a recess formed in the second block 22, and can pivot about a pin of a central portion 25 pivotally supported at one end 41 of the reversing block 4.

The locking portion 3 is constituted by the third shaft 13 on which the member 131 mechanically connected to the shift lever (not shown) is arranged, and the locking portion 3 of the reversing block 4 is provided. As shown in FIG. 2, the substantially J-shaped tip portion that constitutes the other end 42 is the third shaft 13 as shown in FIG.
It is configured to be suspended in the central part of.

The reversing block 4 has the one end 41 formed of a substantially L-shaped tip portion, and the reversing lever 2
The central portion 25 of the is pivotably supported, and the other end 42
Is formed by a substantially J-shaped tip portion, and is suspended by being locked to the third shaft 13 that constitutes the locking portion 3, and in the suspended state, the central portion 43 is bolted to the mission. It is configured to be fixed from the outside of the case 1.

The shift control reversing mechanism of the manual transmission of the first embodiment having the above structure is
Both ends 2 of the first block 21 having one end 41 fixed to the first shaft 11 and the other end 24 of the second block 22 fixed to the second shaft 12.
In a state where the reversing lever 2 in which 3 and 24 are locked is swingably supported, and the other end 42 is locked and hung from the third shaft 13 constituting the locking portion 3, The reversing block 4 is fixed to the mission case 1 at the central portion 43.

The reversing block 4 is fixed from the outside of the mission case 1 by a bolt at a central portion 43 thereof, and the other end 42 constituted by a substantially J-shaped tip portion constitutes the engaging portion 3. The whole is suspended by being locked to the third shaft 13
The one end 41 constituted by a substantially L-shaped tip portion pivotally supports the central portion 25 of the reversing lever 2 so as to be swingable.

The reversing lever 2 includes the reversing block 4
The first and second ends 23 and 24, which are swingably supported about a pivot point of a central portion 25 pivotally supported at one end 41 thereof and have a spherical portion, are fixed to the first shaft 11. The block 21 and the second shaft 12
The second block 22 fixed to the second block 22 is fitted in a recess formed in the second block 22, and swings in accordance with the axial movement of the blocks 21 and 22 to serve as an inversion force point and an action point. It is a thing.

The shift control reversing mechanism of the manual transmission of the first embodiment having the above-mentioned operation is as follows:
The other end 42 of the reversing block 4 is fixed to the mission case 1 from the outside by a bolt in a state where the other end 42 of the reversing block 4 is locked by being suspended from the third shaft 13 constituting the locking portion 3. Therefore, the worker can fix the reversing block 4 to the mission case 1 without touching the reversing block 4, so that the assembly to the mission case is easy.

In the shift control reversing mechanism of the first embodiment, the reversing block 4 is replaced by the mission case 1
Since it is not necessary for an operator to touch the reversing block 4 to fix it with a bolt, the first embodiment is provided in order to eliminate the restrictions on the arrangement position and the application structure in the mission case as in the prior art. As described above, it is possible to arrange the transmission case 1 in the middle portion in the longitudinal direction with a high degree of freedom, and it is possible to solve the problems of increase in cost and weight.

Further, in the shift control reversing mechanism of the first embodiment, since the locking portion 3 is constituted by the third shaft 13, there is no need to change the design of the mission case 1 and add processing thereto. It has an effect that it can be implemented easily and inexpensively, and has two points, that is, the other end 42 at which the reversal block 4 is locked to the locking portion 3 and the central portion 43 fixed to the mission case 1. Since it is locked by the above-mentioned method, there is an effect that a reliable and stable fixing is realized as compared with the conventional technique in which the transmission case is directly fixed at one place.

In the shift control reversing mechanism of the first embodiment, the third shaft 1 constituting the engaging portion 3 is formed.
3 is disposed at a position close to the inner wall of the mission case 1, and the mounting surface on which the first and second shafts 11 and 12 and the fourth and fifth shafts 14 and 15 are disposed. Since the arrangement surface is different from that of, there is an effect that there is no interference and the swing of the reversing lever 2 is secured without restriction.

(Second Embodiment) In the shift control reversing mechanism of the manual transmission of the second embodiment, as shown in FIGS. 3 and 4, one end 23 of the reversing lever 2 is locked as the locking portion 3. The first shaft 1
1 is different from the first embodiment, and only the difference will be described below.

That is, as shown in FIG. 4, the other end 42 of the reversing block 4 is branched into the forked portions 421 and 422, and the first block 2 fixed to the first shaft 11 is provided.
1 at the two positions sandwiching 1 at a sufficient interval
It is locked to the shaft 11 and suspends the inversion block 4.

In the central portion 43 where the forked portions 421, 422 constituting the other end 42 of the reversing block 4 merge, as in the first embodiment, it is fixed from the outside of the mission case 1 by a bolt. Become.

In the shift control reversing mechanism of the second embodiment having the above structure, the first block 21 having the one end 41 fixed to the first shaft 11 and the other end 24.
Supports the reversing lever 2 having both ends 23 and 24 locked to the second block 22 fixed to the second shaft 12 in a swingable manner and forms the other end 42. The reversal block 4 is fixed to the mission case 1 in a state where the reference shafts 421 and 422 are locked to the first shaft 11 constituting the locking portion 3.

In the shift control reversing mechanism of the second embodiment having the above-described operation, the forked portions 421 and 422 forming the other end 42 of the reversing block 4 are attached to the first shaft 11 forming the locking portion 3. Since the reversing block 4 can be fixed to the mission case 1 from the outside in a state of being locked and suspended, the mission case 1 can be fixed even if an operator does not touch the reversing block 4. Since it can be fixed to the transmission case, it has an effect that it can be easily attached to the mission case, and at the same time, it has an effect that there is no restriction on an arrangement position and an applied structure in the mission case.

Further, in the shift control reversing mechanism of the second embodiment, the reversing block 4 is fixed to the transmission case 1 and the bifurcated parts 421 and 422 forming the other end 42 which is locked to the locking portion 3. Since it is locked at three points with the central portion 43, it is possible to achieve more reliable and stable fixing with respect to the first embodiment, which is locked at two points.

The above-described embodiments are merely examples for the purpose of explanation, and the present invention is not limited thereto, and those skilled in the art will recognize from the claims, the detailed description of the invention and the description of the drawings. Modifications and additions can be made without departing from the technical idea of the present invention.

In the above-mentioned first embodiment, the third shaft which constitutes the control shaft is disposed on the disposition surface different from the disposition surface on which the first shaft 11 and the second shaft 12 are disposed. Although the example in which the locking portion is configured by 13 has been described, the present invention is not limited to this, and an arrangement surface on which the first shaft 11 and the second shaft 12 are arranged as shown in FIG. It is also possible to adopt a mode in which the locking portion is constituted by the third shaft 13 constituting the control shaft arranged on the same arrangement surface as the above.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment device of the present invention.

FIG. 2 is a side view showing the device of the first embodiment.

FIG. 3 is a partial cross-sectional view showing a second embodiment device of the present invention.

FIG. 4 is a partial side view showing the device of the second embodiment.

FIG. 5 is a partial cross-sectional view showing a modified example of the present invention.

FIG. 6 is a cross-sectional view showing a conventional device.

FIG. 7 is a cross-sectional view showing another conventional device.

[Explanation of symbols]

 1 Mission Case 2 Reversing Lever 3 Locking Part 4 Reversing Block 11 First Shaft 12 Second Shaft 21 First Block 22 Second Block 23, 24 Both Ends 41 One End 42 The Other End 43 Center Part

Claims (4)

[Claims] 1. A reversing lever having both ends locked by a reversing first block fixed to a first shaft and a second reversing block fixed to a second shaft, and swinging; A shift control reversing mechanism for a manual transmission, wherein one end of the reversing lever is swingably supported, and the other end of the reversing block is locked to a locking portion and fixed to a transmission case. 2. The shift of a manual transmission according to claim 1, wherein the locking portion is configured by a third shaft, and the reversal block is configured to be suspended by the third shaft. Control inversion mechanism. 3. The structure according to claim 1, wherein the locking portion is configured by at least one of a first shaft and a second shaft, and the inversion block is configured to be suspended by the one shaft. The shift control reversing mechanism of the characteristic manual transmission. 4. The shift control reversing mechanism for a manual transmission according to claim 1, wherein the reversing lever and the reversing block are arranged at an intermediate portion in the longitudinal direction of the mission case.