JPH08159249A - Reverse position fixing structure for shift lever - Google Patents

Abstract

PURPOSE: To reliably hold a shift lever in a reverse position without increasing the size of a device. CONSTITUTION: A groove 22 extending in a shift direction is formed in a stopper block 18 which is moved over a stopper plate 19 to regulate movement to a reverse position, and a claw 24 in which the groove 22 slidably fitted in the stopper plate 19 is arranged in a position situated facing the groove 22. After selection to a reverse position is effected, the groove 22 of the stopper block 18 is fitted in the claw 24 of the stopper plate 19 and the attitude of a shift lever 11 is held and even when an external force is exerted on the shift lever 11, fallout of the stopper block 18 from the stopper plate 19 is blocked through fit-in between the claw 24 and the groove 22, and the shift lever 11 is reliably held in a reverse position without increasing the size of a device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing a reverse position of a shift lever for switching a shift stage in a manual transmission.

[0002]

2. Description of the Related Art FIG. 6 shows an example of a shift pattern of a shift lever in a manual transmission of an automobile. The shift pattern shown in the figure is 5 forward and 1 reverse.
The reverse (R) position is arranged at the end of the forward select pattern on the first speed side (left side in the drawing) in the select direction. Normally, the shift lever is biased in the select direction by the return spring, and is held in the neutral position of the third and fourth speed positions in the select direction. The lower end of the shift lever is connected to the transmission side via a rod (not shown). In the shift pattern shown in the figure, when the shift lever is operated to the first speed position, it is possible that the shift lever is erroneously operated to the R position set in the same shift direction. If the shift lever is operated incorrectly, the vehicle will start in the direction opposite to the driver's intention, which is extremely dangerous. In addition, if the shift lever is erroneously operated during traveling, an abnormal noise may be generated in the gear or the gear may be damaged.

Therefore, in order to prevent this erroneous operation, the shift lever is provided with a structure that cannot be operated to the R position by a normal operation. That is, as shown in FIG. 7, the shift lever 1 supports a rocking tube 2 which is axially movable and urged downward, and the rocking tube 2 is at the 1st and 2nd gear positions in the select direction. It contacts the wall surface 4 of the stopper 3. By bringing the locking tube 2 into contact with the wall surface 4 of the stopper 3,
The shift lever 1 cannot be further selected to the left (R position side). Therefore, the shift lever 1 is not operated to the R position during normal operation. Shift lever 1
When the is operated to the R position, the locking tube 2 is pulled upward against the biasing force to release the contact of the stopper 3 with the wall surface 4, and the shift lever 1 is operated to the R position side in the selection direction. By releasing the locking tube 2 after operating to the R position side, the locking tube 2 is engaged with the shelf surface 5 of the stopper 3 by the biasing force, and the shift lever 1 is held at the R position.

As described above, the provision of the locking tube 2 and the stopper 3 eliminates the possibility of operating the shift lever 1 to the R position against the driver's intention during normal traveling, and, for example, during traveling. The shift lever 1 will not be accidentally shifted to the R position when shifting down to the second speed.

[0005]

According to the above-mentioned conventional structure, when the shift lever 1 is operated to the R position, the locking tube 2 is biased by the urging force of the locking tube 2 and the shelf surface 5 of the stopper 3 is moved.
, And the shift lever 1 is held and fixed in the R position. However, since the rod 14 is long and has a pipe shape, the rod 14 has low rigidity, and since it is biased by the return spring in the neutral position direction, when an external force is applied to the shift lever 1 in the select direction, the shelf surface 5 There is a possibility that the locking tube 2 may come off and fall to the wall surface 4 side, and the shift lever 1 may be held in the first speed position. Should this happen, the shift lever 1 will be in the 1st gear position, even though the reverse gear is actually selected, and the driver may mistakenly recognize the actual gear. Will end up. Also, in this state,
Since the reverse gear is still selected as the posture of the rod (not shown), the support point on the transmission side of the rod is held at the position of the reverse gear. Therefore, an unreasonable force is applied to the connecting position of the shift lever 1 and the rod,
The shift lever 1 is held in the first speed position in the twisted state due to the deflection of the rod and the deviation of the dimension of the connecting portion. Therefore, when pulling up the locking tube 2 in order to return the shift lever 1 to the neutral position, the locking tube 2 moves while pressing the wall surface 4 of the stopper 3, which increases resistance and deteriorates the operational feeling. I will leave. Locking tube 2 and shelf 5
If the wall thickness of the locking tube 2 is ensured by the wall thickness of the locking tube 2 that can sufficiently maintain the engagement state of
Although it can be prevented from falling to the side, when the shift lever 1 is held in the 1st speed position, the locking tube 2 is attached to the wall surface 4
Since it is necessary to bring the device into contact with the device, the size of the device is increased and the operation range is expanded, and a practical device cannot be achieved.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a reverse position fixing structure for a shift lever that can reliably hold the shift lever in the reverse position without increasing the size of the device. To do.

[0007]

In order to achieve the above object, the structure of the present invention is provided with a stopper block, which moves in the axial direction in conjunction with the shift lever, in the shift lever so that A stopper plate which the stopper block contacts when the shift lever is selected is provided at one of the ends on the reverse position side, and the stopper block is moved upward or downward so that the stopper block gets over the stopper plate. Thus, in the shift lever in which the shift lever can be operated to the reverse position, a groove extending along the shift direction is provided on the lower surface or the upper surface of the stopper block, and the groove slides on the stopper plate at a position facing the groove. It is characterized in that a claw which is movably fitted is provided.

Further, the end portion of the shift lever is connected to the transmission side via a rod. The stopper block is provided on a tube slidably supported on the outer circumference of the shift lever. Further, the groove is characterized in that a rear end portion in the shift direction is formed in a closed state.

[0009]

In normal operation, when the shift lever is selected to the reverse position side, the stopper block comes into contact with the stopper plate and the shift lever is not selected and moved to the reverse position. When the shift lever is selected to the reverse position, the stopper block is moved upward or downward so that the stopper block gets over the stopper plate. After the select operation to the reverse position, the groove of the stopper block fits into the claw of the stopper plate, and the posture of the shift lever is maintained. Even if an external force is applied to the shift lever in this state, the stopper block is prevented from coming off the stopper plate due to the fitting of the claw and the groove.

Further, since the stopper block is provided on the tube slidably supported on the outer circumference of the shift lever, the stopper block is moved over the stopper plate by moving the tube with respect to the shift lever. . Further, since the rear end portion of the groove in the shift direction is closed, when the shift lever is operated to shift to the reverse position, the rear end portion of the groove comes into contact with the pawl and the moving end of the shift lever in the shift direction is moved. Is regulated.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a shift lever equipped with a reverse position fixing structure according to an embodiment of the present invention along the select direction, and FIG. 2 (a) shows a state along the shift direction in FIG. 2 (b) is an arrow view in FIG. 2 (a), FIG. 3 is an enlarged view of an essential part in FIG. 1 with the shift lever fixed to the reverse position, and FIG. 4 is in FIG. IV-IV line arrow, FIG. 5 shows the side surface of the stopper plate. The shift pattern of the illustrated shift lever is the same as that shown in FIG. 6, and the reverse position is arranged at the left end in the figure in the select direction.

As shown in FIGS. 1 and 2, the shift lever 1
1 is rotatably supported in the select direction via a support point 12 and rotatably supported in the shift direction via a support point 13. A rod 14 connected to the transmission side (not shown) is coupled to the lower end of the shift lever 11, and a predetermined shift speed is selected via the rod 14 by operating the shift lever 11 in the select direction and the shift direction. In addition, the shift lever 11 is the return spring 1
5, the neutral position, that is, the neutral position of the third speed and the fourth speed in the select direction is maintained.

As shown in FIGS. 1 to 3, a locking tube 1 as a tube is provided on the outer periphery of the shift lever 11.
6 is movably supported in the axial direction, and the locking tube 16 is urged downward by a spring 17. A stopper block 18 is provided at the lower end of the locking tube 16, and the side surface of the stopper block 18 contacts the stopper plate 19 when the shift lever 11 is selected to the reverse position side.
A knob 21 is provided below the shift knob 20 at the upper end of the locking tube 16, and by operating the knob 21, the locking tube 16 can be moved upward against the biasing force of the spring 17. it can. When operating the shift lever 11 to the reverse position,
The shift tube 11 can be moved to the reverse position by moving the locking tube 16 upward by the knob 21 so that the stopper block 18 gets over the stopper plate 19.

As shown in FIGS. 3 and 4, a groove 22 is formed on the lower surface of the stopper block 18 and extends in the shift direction (perpendicular to the paper surface in FIG. 3), and the rear end of the groove 22 in the shift direction. As shown in FIG. 4, the portion is provided with a wall portion 23 and the groove 22 is in a closed state. Moreover, FIG. 3 and FIG.
As shown in FIG. 2, the stopper plate 19 is provided with a claw 24 at a position facing the groove 22, and the claw 24 has a groove 22.
Are slidably fitted together. That is, when the locking tube 16 is moved upward by the knob 21 and the stopper block 18 has passed over the stopper plate 19 and then the locking tube 16 is moved downward by the biasing force of the spring 17, the groove 22 causes the claw of the stopper plate 19 to move. The shift lever 11 is engaged with the shift lever 24 to prevent the shift lever 11 from moving in the select direction. Further, when the shift lever 11 is moved in the shift direction with the groove 22 fitted in the claw 24 of the stopper plate 19, the groove 22
The claw 24 of the stopper plate 19 comes into contact with the wall portion 23 of the
The moving end of the shift lever 11 in the shift direction is restricted.

In the above configuration, an example in which the shift lever 11 and the transmission side (not shown) are connected via the rod 14 has been described, but the one connected via a wire or the lower end portion of the shift lever 11 is directly connected to the transmission. It is also possible to apply this application to what is connected to. Further, in the above configuration, an example in which the stopper block 18 is provided in the locking tube 16 that moves in the axial direction in conjunction with the shift lever 11 has been described, but the shift lever 11 itself is configured to be movable in the axial direction. It is also possible to directly provide the stopper block 18 on 11. In addition, in the above embodiment, the locking tube 16 is urged downward to stop the stopper block 18.
Although the groove 22 is provided on the lower surface of the stopper and the groove 22 is fitted to the claw 24, the locking tube 16 may be biased upward to provide the groove 22 on the upper surface of the stopper block 18. .

The operation of the above-described reverse position fixing structure will be described. When the shift lever 11 is selected to the reverse position in the normal state, the stopper block 18 contacts the stopper block 18 and the shift lever 11 is not moved to the reverse position. Therefore, the shift lever 11 will not be moved to the reverse position during normal traveling, and will not be accidentally shifted to the reverse position when downshifting to the first speed or the second speed during traveling.

When the shift lever 11 is selected to the reverse position, the locking tube 1 is rotated by the knob 21.
6 is moved upwards against the biasing force of the spring 17,
The stopper block 18 is set over the stopper plate 19. When the locking tube 16 is moved downward by the biasing force of the spring 17 in this state, the groove 22 of the stopper block 18 fits into the claw 24 of the stopper plate 19. By moving the shift lever 11 to the reverse position in the shift direction with the groove 22 fitted in the claw 24, the groove 22 slides along the claw 24 until the wall portion 23 comes into contact with the claw 24, and the retreat step. Shifting to is achieved. The posture of the shift lever 11 in the reverse position is maintained by fitting the groove 22 into the claw 24. Even if an external force is applied to the shift lever 11 in the select direction while the shift lever 11 is held in the reverse position, the stopper block 18 does not drop from the stopper plate 19 by fitting the groove 22 into the claw 24. Therefore, even if the rigidity of the shift lever 11 is not increased more than necessary, it is possible to prevent the shift lever 11 from being in the position of the first speed position when the reverse gear is selected, and the driver misidentifies the actual shift speed. There is no fear of doing anything.

When the shift lever 11 is operated from the reverse position to the neutral position or the forward position, the shift lever 11 is moved in the shift direction with the groove 22 fitted to the claw 24 and returned from the reverse position, and the knob 21 is used. The locking tube 16 is moved upward against the biasing force of the spring 17 to move the shift lever 11 in the select direction. Since the shift lever 11 in the reverse position is reliably held in the posture, unnecessary force is not required when moving the shift lever 11 in the select direction or moving the locking tube 16 upward.

According to the reverse position fixing structure having the above structure, the groove 22 of the stopper block 18 is fitted into the claw 24 of the stopper plate 19 when the shift lever 11 is maintained in the reverse position. 18 does not fall off the stopper plate 19, and the posture of the shift lever 11 can be reliably maintained without increasing the size of the device. Therefore, without increasing the rigidity of the shift lever 11 more than necessary, it is possible to prevent the shift lever 11 from being in the 1st gear position even if an external force is applied when the reverse gear is selected, and the driver There is no risk of misidentifying the actual gear.

Further, since the stopper block 18 is provided on the locking tube 16 slidably supported on the outer circumference of the shift lever 11, by moving the locking tube 16 with respect to the shift lever 11,
The stopper block 18 can be set over the stopper plate 19. Therefore, when the shift lever 11 is moved to the reverse position, it can be easily performed with a small operation force. In addition, the stopper block 18
Since the groove 22 is provided with the wall portion 23 and the rear end portion in the shift direction is closed, when the shift lever 11 is shifted to the reverse position, the rear end portion of the groove 22 is stopped by the stopper plate 19. The shift lever 11 by abutting on the claw 24
The moving end of the shift direction is restricted. Therefore, when the shift lever 11 is shifted to the reverse position, even if an excessive force is applied, a part of the force applied to the shift lever 11 can be taken up by the wall portion 23 of the groove 22. It is possible to increase the rigidity of the lever 11.

[0021]

According to the structure for fixing the reverse position of the shift lever of the present invention, a groove extending in the shift direction is provided in the stopper block that rides over the stopper plate that restricts the movement to the reverse position, and the stopper plate at the position facing the groove is provided. Since the groove is provided with the claw that slidably fits, after the selection operation is performed at the reverse position, the claw of the stopper plate fits the groove of the stopper block and the posture of the shift lever is held. As a result, even when an external force is applied to the shift lever, the stopper block is prevented from falling off the stopper plate due to the engagement of the claw and the groove, and the backward stage is selected without increasing the size of the device. The shift lever is prevented from becoming the posture of another gear,
There is no possibility that the driver mistakenly recognizes the actual shift speed.

Further, since the stopper block is provided on the tube slidably supported on the outer periphery of the shift lever, the stopper block can be moved over the stopper plate by moving the tube with respect to the shift lever. The operating force of the stopper block can be reduced. Further, since the rear end of the stopper block in the shift direction is formed in a closed state, the moving end of the shift lever in the shift direction can be restricted, and the rigidity of the shift lever can be increased.

[Brief description of drawings]

FIG. 1 is a state diagram along a select direction of a shift lever having a reverse position fixing structure according to an embodiment of the present invention.

FIG. 2A is a state diagram taken along the shift direction in FIG.
(b) is a view from arrow A in (a).

FIG. 3 is an enlarged view of a main part in FIG.

FIG. 4 is a view taken along the line IV-IV in FIG.

FIG. 5 is a side view of a stopper plate.

FIG. 6 is an explanatory diagram of a shift pattern.

FIG. 7 is an explanatory view of a conventional reverse position fixing structure.

[Explanation of symbols]

 11 Shift Lever 14 Rod 15 Return Spring 16 Locking Tube 17 Spring 18 Stopper Block 19 Stopper Plate 20 Shift Knob 21 Knob 22 Groove 23 Wall 24 Claw

Claims (4)

[Claims] 1. A shift lever is provided with a stopper block that moves in the axial direction in conjunction with the shift lever, and the shift lever is selected to the reverse position side at either end in the select direction of the forward select pattern. A shift lever which is provided with a stopper plate with which the stopper block abuts when moved, and which allows the shift lever to be operated in a reverse position by moving the stopper block upward or downward so that the stopper block gets over the stopper plate; A shift lever characterized in that a groove extending along the shift direction is provided on a lower surface or an upper surface of the stopper block, and a claw for slidably fitting the groove is provided on the stopper plate at a position facing the groove. Reverse position fixed structure. 2. The reverse position fixing structure for a shift lever according to claim 1, wherein an end portion of the shift lever is connected to a transmission side via a rod. 3. The reverse position fixing structure for a shift lever according to claim 1, wherein the stopper block is provided on a tube slidably supported on an outer circumference of the shift lever. 4. The reverse position fixing structure for a shift lever according to claim 1, wherein a rear end portion of the groove in the shift direction is formed in a closed state.