JPS58166155A - Shift lever operating device of transmission for automobile - Google Patents

Abstract

PURPOSE:To move a shift lever in accordance with H pattern to simplify the construction of the device by reciprocating two piston rods disposed in parallel and close to each other. CONSTITUTION:When a piston rod 7a is moved toward the right-hand direction, a shift lever 26 also moves in the right-hand direction because the lever 26 is slidable with respect to a sleeve 22, and is located at a neutral position N1 of double H pattern. Simultaneously with this, when another piston rod 7b is moved toward the left hand direction, its operating force is first transmitted to the sleeve 22 through a direction change mechanism 23, and the sleeve 22 is checked of its axial movement. Therefore, the sleeve 22 rotates around the piston rod 7b. In accompaniment therewith, the shift lever 26 restrained with respect to the rotation of the sleeve 22 rotates, and is switched to the first position of the double H pattern.

Description

Detailed Description of the Invention The second invention is a shift lever in an automobile transmission.
This relates to the shift lever operation for remotely controlling the shift lever according to the H pattern.

The second type of shift lever operation device includes a select actuator that moves the shift lever in the select direction and a shift actuator that moves the shift lever in the shift direction, and is configured to operate the two actuators based on an appropriate input signal. There is.

Hydraulic type actuators are generally used for the above two actuators, and the conventional combination methods include 1, for example,
As seen in Publication No. 2-3214, two double-acting actuators are arranged at right angles to each other with the shift lever at the center, and the piston rods of the two actuators individually reciprocate, and one Some use a rotary set as the actuator, rotating one rod and reciprocating the other piston rod. However, in the former case, the two actuators are arranged at right angles, making the entire device large; in the latter case, a rotary set of actuators is used, making the structure complex and expensive. There were drawbacks.

Therefore, an object of the present invention is to provide a shift lever operating device that can use two inexpensive double-acting actuators and can be assembled compactly. The most distinctive feature of this system is that two piston rods that individually reciprocate are arranged in parallel and close positions within the case, and a shift lever connecting member is attached to one of the piston rods in the axial direction of the other. is installed to restrict movement of the piston rod, and allows the other piston rod to move only in the axial direction relative to the case;
A sleeve is fitted onto the other piston rod so as to permit only spiral movement with respect to the other piston rod via a direction changing mechanism, and to prevent axial movement with respect to the case; The shift lever is fitted onto the sleeve so as to allow movement only in the axial direction with respect to the sleeve, and the shift lever is connected to the shib lever connecting member so as to allow movement only in the circumferential direction. Therefore, when one piston rod is reciprocated, it moves in the axial direction because the shift lever is connected to this one piston rod via a shift lever connecting member, and when the other piston rod is reciprocated, it moves in the axial direction. Since the shift lever is connected to the other piston rod via the sleeve, it can rotate around the other piston rod and move the shift lever according to the H pattern. Since it is only necessary to reciprocate the two piston rods, it is possible to use a double-acting actuator that is inexpensive and has a simple structure. Because of this, the entire device can be housed compactly, and the above-mentioned problems can therefore be achieved.

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

1 to 3, an embodiment of the present invention is shown, in which a cylinder body 1 has two cylinder bores 2a and 2b.
are formed parallel to each other, one end of each cylinder bore 2a, 2b is interposed with a lid 3 connected to the cylinder body 1, and a piston 4a is disposed within each cylinder bore 2a, 2b.

4b is inserted. The second pistons 4a and 4b are double-acting, and the respective cylinder bores 2m and 2b are divided into two chambers 5a.
, 5b and 6a, 6b, one chamber 5a,
An oil supply/discharge hole (not shown) communicating with each of sb and the other chambers 6m and 6b is formed in the cylinder body l, and the cylinder body l is configured to reciprocate from side to side by hydraulic pressure supplied through the oil supply/discharge hole. It has become. One ends of piston rods 7a, 7b are fixed to the pistons 4m, 4b, and the piston rods 7a, 7b protrude from the cylinder body 1 via barrels 8a, 8b fitted into the other ends of the cylinder bores 2a, 2b. , the protruding portion thereof is arranged parallel to and close to the case 9 described below.

The case 9 is firmly connected to the case 1 at its lower side, and forms a space 10 having an opening shape in cross section and opening at the bottom.A piston rod insertion hole 11a formed in the case 9 A space 1 is formed around the piston rods 7a and 7b inserted into the case 9 via the
Covering through 0.

The shift lever connecting members 1 and 2 are connected to the space l of the case 9.
The piston rod 7a is disposed in the space 10 and is attached via a bolt 13 to the end of one piston rod 7a facing the space 10. The second bolt 13 has a washer 14 interposed between its head 13a and the shift lever connecting member 12, passes through a bolt insertion hole 15 formed in the shift lever connecting member 12, and is inserted into the end of one piston rod 7a. One piston rod 7a is screwed into a screw hole 16 formed at the center in the axial direction.
The relative axial movement between the shift lever connecting member 12 and the shift lever connecting member 12 is restrained. Further, in the inner surface of the case 9 facing the head 13a of the bolt 13, a relief hole 17 is formed so that the bolt 13 can be opened when one piston rod 7a is moved to the left in FIG.
The head 13a of the head 13a is formed so as not to come into contact with the cape 9.

The other piston rod 7b has its end fixed to the cylindrical support part 1 that passes through the space lO of the case 9 and is fixed to the case 9.
8 and is supported by the piston rod 7b.
keys 21a, 21b provided in the piston rod insertion hole 11b of the case 9 and the cylindrical support part 18 so as to fit into the second key grooves 20a, 20b; Thus, only movement in the axial direction with respect to the case 9 is permitted. Further, a sleeve 22 is externally connected to the other piston rod 7b via a direction changing mechanism 23 within the space 10. In this embodiment, the second direction changing mechanism 23 includes a lead groove 24 formed in the sleeve 22 obliquely with respect to the axial direction, and a lead groove 24 formed in the other piston rod 7b so as to engage with the second lead groove 24. The engagement pin 25 is provided to allow the sleeve 22 to move only in a spiral manner relative to the other piston rod 7b. It goes without saying that the lead groove 24 may be provided on the piston rod 7b and the engagement pin 25 may be provided on the sleeve 22, contrary to this embodiment. The sleeve 22 has one end in contact with the inner surface of the case 9 and the other end in contact with the cylindrical support portion 18, so that movement in the axial direction with respect to the case 9 is prevented. Therefore, when the other piston rod 7b reciprocates, the sleeve 22 rotates about the piston rod 7b.

The shift lever 26 has an arm portion 2 on a shift lever main body portion 27.
8 are integrally connected, and the shift lever body part 2
A sleeve insertion hole 30 having a recess 29 is formed in 7, and the recess 29 of the sleeve insertion hole 30 meshes with a protrusion 31 formed in the outer circumferential axial direction of the sleeve 22. Only the movement of is allowed. Further, the upper part of the shift lever main body 27 is sandwiched between clamping parts 32a and 32b formed on both sides of the lower part of the shift lever connecting member 12, and is connected to each other so that only movement in the circumferential direction is allowed. 28 protrudes outward from the opening of the space 10 of the case 9, and is adapted to be connected to a predetermined gear device.

In the above configuration, in the state shown in FIGS. 1 and 2, the pistons 4a and 4b are located at the center of the cylinder bores 2a and 2b, and the shift lever 26 is in the neutral N position of the double pattern shown in FIG. .

Now, when high pressure oil is introduced into one chamber 5a of the cylinder bore 2a from the above state, one piston rod 7a moves to the right in FIG. This shift lever
26 is slidable with respect to the sleeve 22, so it moves to the right in Figure 1, and the double pattern neutral Nr
will be located in At the same time, cylinder bore 2b
When high-pressure oil is introduced into the other chamber 6b, the other piston rod 7b moves to the left in FIG. Since only helical movement is prevented with respect to the rod 7b, and axial movement is prevented with respect to the case 9, it rotates clockwise in FIG. 2 around the piston rod 7b in response to the component force from the piston rod 7b. Along with this, the shift lever 26, which is restrained from rotation of the sleeve 22, also rotates and is switched to the first stage position (2) of the double pattern.

Next, when the high pressure oil in the other chamber 6b of the cylinder bore 2b is discharged and the high pressure oil is introduced into one chamber 6a, the other piston rod 7b moves to the right in FIG. The pattern is switched from the 1st stage position to the 2nd stage position ■ beyond neutral N1. Similarly, if one piston rod 7a drives the shift lever 2b in the select direction and the other piston rod 7b drives the shift lever 2b in the shift direction, the third stage position of the double pattern is 0°4.
It is possible to switch to stage position (2), fifth stage position (2), and reverse R, respectively. In addition, in the above embodiment,
Although the two piston rods 7a and 7b are driven using hydraulic pressure, air pressure may also be used.

In FIG. 4, another embodiment of the second invention is shown, and while the direction changing mechanism 23 in the previous embodiment was a combination of a lead groove 24 and an engaging pin 25, the direction changing mechanism 23 in this embodiment The mechanism 23 is a helical spline mechanism. Similar to the previous embodiment, the other piston rod 7b and the sleeve 22 are restrained in a spiral manner, but in this embodiment, the piston rod 7b and the sleeve 22 can be provided continuously around the entire circumference, so that the force can be easily transmitted. becomes certain.

As described above, according to the present invention, in a shift lever operating device for an automobile transmission that remotely controls a shift lever according to an H pattern, a predetermined movement is applied to the shift lever by reciprocating two piston rods. Since the actuator for moving the piston rod can be of a double-acting type, it is possible to reduce the cost and simplify the structure. Moreover, since the two piston rods are arranged in parallel and close to each other, the entire device is compact, making it suitable for use in automobiles installed in narrow spaces.

[Brief Description of the Drawings] Fig. 1 is a cross-sectional view showing one embodiment of the second invention, Fig. 2 is a cross-sectional view taken along the line A-A of Fig. 1, and Fig. 3 is an exploded view of the same partially cut away. FIG. 4 is a perspective view showing the other piston rod and sleeve used in another embodiment of the invention. 7a, 7bΦ...Piston rod, 9-...Case, 1
2... Shift lever connection member, 22... Sleeve,
23... Direction changing mechanism, 24... Lead groove, 25...
...Engagement pin, 26...Shift lever-0

Claims (1)

[Claims] 1. Two piston rods that are individually reciprocated are disposed in parallel and close positions in a case, and a shift lever connecting member is connected to one of the piston rods in the axial direction of each other. The other piston rod is mounted so as to be restrained from moving, and the other piston rod is only allowed to move in the axial direction with respect to the case.1. A sleeve is fitted onto the other piston rod so as to permit only spiral movement with respect to the other piston rod via a direction changing mechanism, and to prevent axial movement with respect to the case; A vehicle for use in an automobile, characterized in that a shift lever is fitted onto the sleeve so as to allow movement only in the axial direction with respect to the sleeve, and two shift levers are connected to the shift lever connecting member so as to allow movement only in the circumferential direction. Transmission shift lever operating device. 2. The direction changing mechanism is provided with a lead groove formed obliquely with respect to the axial direction on one of the other piston rod or the sleeve, and on the other of the other piston rod or sleeve to engage with this lead groove. 2. A shift lever operating device for an automobile transmission according to claim 1, characterized in that the shift lever operating device comprises an engaging pin having a fixed position. 3. The shift lever operating device for an automobile transmission according to claim 1, wherein the direction changing mechanism is a helical spline mechanism.