JPH0712219A - Transmission for vehicle - Google Patents

Abstract

PURPOSE:To give variation to the operating force of an operation lever by providing a means for energizing the operation lever so as to be held in the neutral position, a means for energizing the operation lever from the reverse shift row side to the up/down shift row side, and a detent mechanism having a reaction means and a holding means. CONSTITUTION:This transmission for vehicle is provided with a neutral position holding means 30 energizing an operation lever 20 so as to be held on the neural position, at tilting the operation lever 20 in the up/down shift direction and the reverse shift direction, and a select position holding means energizing the operation lever 20 from the reverse shift row side to the up/down shift row side, at tilting the operation lever 20 in the select direction. Further it is provided with a detent mechanism 50 having a reaction means 52 functioning from the way of the stroke of the select position holding means and a holding means 53 holding the operation lever 20 on the reverse shift position. The detent mechanism 50 is constituted of a position plate 51 provided with an inclined face 52 and a recessed part 53, and a ball 54.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a transmission for a vehicle.

[0002]

2. Description of the Related Art In a transmission of a vehicle, particularly a large-sized bus or truck, an up-down shift train is formed on one side of a select train so as to be orthogonal to the select train, and a reverse shift is arranged on the other side of the select train. An operating lever is provided which is operable to trace the shift select pattern by forming the shift select pattern by forming the row parallel to the up / down shift row.

[0003]

However, in the above-mentioned conventional example, since the moderation mechanism is not particularly provided, the operation force when the operation lever is shift-selected is not changed. For this reason, the driver does not feel that he has performed a gear shift operation, and the operation feeling is not good.

The present invention solves the above-mentioned problems, and it is an object of the present invention to change the operating force of the operating lever at the time of shift select operation and to downsize the entire apparatus. An object of the present invention is to provide a vehicle transmission that can be used.

[0005]

In order to achieve the above-mentioned object, in the vehicle transmission of claim 1 of the present invention, an up-down shift train is formed on one side of the select train so as to be orthogonal to the select train, Further, the reverse shift train is formed on the other side of the select train in parallel with the up-down shift train, and an up-down shift and a reverse shift are performed by an operation lever arranged in the housing, which is the vehicle transmission. When the operation lever is tilted in the up / down shift direction and the reverse shift direction, a neutral position holding means for urging the operation lever so as to hold it in the neutral position, and when the operation lever is tilted in the select direction, the operation lever is reverse-shifted. Side, the select position holding means for urging the up / down shift row side, and the strike of this select position holding means. The detent mechanism has a reaction means that functions from the middle of the stroke and a holding means that holds the operation lever in the reverse shift position. Further, this detent mechanism has an inclined surface as the reaction means and a recessed portion as the holding means. It is characterized in that it is provided with a position plate provided and a ball that comes into pressure contact with the position plate, and the position plate is attached to the housing side and the ball is attached to the operation lever side.

Further, in the vehicular transmission according to the present invention, the neutral position holding means is provided with a torsion coil holding spring, and the holding spring is attached to an attachment shaft arranged in the casing. It is composed of a base portion and a pair of holding portions parallel to the select direction from the base portion, and the base portion side of the operation lever is held between the pair of holding portions to provide an operation feeling during up-down operation and reverse operation. The feature is that they can be different from each other.

Further, in the vehicle transmission of the third aspect of the invention, the reverse shift detent sensation providing means is provided in the vicinity of the reverse shift position of the position plate.

Further, in the vehicle transmission according to the present invention, the upshift detent sensation imparting means and the downshift detent sensation imparting means are provided near the upshift position and the downshift position of the position plate, respectively. Is characterized by.

Further, in the vehicle transmission according to the fifth aspect of the invention, the ball riding-on prevention means is provided near the upshift position and near the downshift position of the position plate, respectively.

[0010]

According to the vehicle transmission of the first aspect, when the operation lever is upshifted or downshifted, the operation force of the operation lever can be changed by the neutral position holding means. When the operation lever is selected in the neutral direction, the operation force can be changed by the selection position holding means and the reaction force means of the detent mechanism. When the operation lever is operated in the reverse shift direction from the neutral position, the operation force can be changed by the neutral position holding means, and the operation lever can be held in the reverse shift position by the holding means of the detent mechanism. In this way, it is possible to change the operating force when performing shift select operation of the operating lever,
It is possible to give the driver a feeling of having performed a gear shift operation and improve the operation feeling. Further, since the ball can be attached to the operation lever side and the member for accommodating the ball can be arranged in the housing, the entire apparatus can be downsized.

According to the vehicle transmission of the second aspect, the operational feeling can be changed between the up-down operation and the reverse operation, so that the driving safety can be improved.

Further, according to the vehicle transmission of the third aspect, since the operating force in the vicinity of the reverse shift position can be increased by the reverse shift detent providing means, the operation feeling at the time of the reverse shift operation can be obtained. It can be further improved.

According to another aspect of the invention, the operating force in the vicinity of the upshift position and in the vicinity of the downshift position is increased by the upshift detent sensation imparting means and the downshift detent sensation imparting means, respectively. Therefore, it is possible to further improve the operation feeling during the up / down shift operation.

According to the vehicle transmission of the fifth aspect, it is possible to prevent the operation feeling from being deteriorated due to the riding of the ball in the vicinity of the upshift position and in the vicinity of the downshift position by the ball riding-in prevention means. Therefore, the operation feeling during the up-down shift operation can be further improved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle transmission according to the present invention will be described below with reference to the embodiments shown in the drawings.

FIG. 1 is a sectional explanatory view of a vehicle transmission, FIG.
1 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a line III-II in FIG.
I sectional view taken along the arrow, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3, FIG. 5 is a perspective explanatory view of the position plate, FIG. 6 is a plan explanatory view of the switch unit, and FIG. 7 is a perspective explanatory view of the guide plate. 8 and 9 are plan explanatory views of the shift select pattern.

In the figure, E is a vehicle transmission, and an up-down shift train 12 is formed on one side of the select train 11 so as to be orthogonal to the select train 11.
The shift select pattern 10 is formed by forming the reverse shift train 13 on the other side of 1 in parallel with the up-down shift train 12.
Based on the above, the up / down shift and the reverse shift are performed by the operation lever 20 arranged in the housing 80.

The present invention is particularly applicable to the operating lever 20.
When tilting in the up-down shift direction and the reverse shift direction, the neutral position holding means 30 for urging the operating lever 20 to hold it in the neutral position, and the operating lever 20.
When tilting in the select direction, the select position holding means 40 for urging the operation lever 20 from the reverse shift row side to the up-down shift row side, the reaction force means 52 functioning from the middle of the stroke of the select position holding means 40, A detent mechanism 50 having a holding means 53 for holding the operation lever 20 in the reverse shift position is provided.

Further, the detent mechanism 50 comprises a position plate 51 provided with an inclined surface 52 as a reaction force means and a concave portion 53 as a holding means, and a ball 54 pressed against the position plate 51. On the side of the housing 80, the ball 54 is the operation lever 2
They are attached to the 0 side respectively.

In the figure, arrow F indicates the front side of the vehicle and arrow R indicates the rear side of the vehicle. Further, the structure of the present invention will be described in detail. In the shift select pattern 10 shown in FIG. 8, the up / down shift train 12
An upshift position U and a downshift position D are provided at the intersection, and an intersection H between the updownshift train 12 and the select train 11 is a neutral position of the operation lever 20 on the updownshift train 12 side, a so-called hold position. is there.
Further, the reverse shift position R is arranged at a position facing the upshift position U of the reverse shift train 13.
The intersection N between the reverse shift train 13 and the select train 11 is
This is the neutral position of the operation lever 20 on the side of the reverse shift train 13, that is, the so-called neutral position.

The operating lever 20 is attached to a casing 80 having a quadrangular cross section which is open at the upper side via a spindle 21 and an outer cylinder 22, and the spindle 21 is arranged in the casing 80 along the select direction. . Bushings 23 made of synthetic resin are press-fitted into both ends of the outer cylinder 22, respectively.
The main shaft 21 is inserted into the shaft 3. The intermediate portion 20a of the operating lever 20 is a cylindrical socket 24 protruding from the outer cylinder 22.
Axis 25 housed inside and secured to this socket 24
Is pivoted by. The spherical portion 20b formed on the base of the operation lever 20 is fitted into a support hole 21a formed so as to penetrate therethrough at a right angle to the axis of the main shaft 21. Further, a knob 26 is attached to the upper portion of the operation lever 20.

The neutral position holding means 30 includes a support roller 31.
The holding roller 32 and the spring stopper 33 are provided, and the support roller 31 is rotatably attached to the outer cylinder 22 on a support shaft 34 projecting to the front F side orthogonal to the axis thereof. The holding spring 32 is in the form of a torsion coil, and has an arc-shaped base portion 32a wound around a mounting shaft 35 protruding from the front F-side inner wall 80a of the housing 80, extends tangentially from the base portion 32a, and vertically opposes. And a pair of sandwiching portions 32b and 32c that are parallel to each other along the select direction. A pair of sandwiching portions 32b and 32c sandwich a supporting roller 31 attached to the base side of the operating lever 20. The spring stopper 33 is the inner wall 8 of the housing 80.
0b, and the tips of the pair of holding portions 32b and 32c of the holding spring 32 are in pressure contact with the upper surface 33a and the lower surface 33b.

The guide pin 3 is attached to the tip of the support shaft 34.
6 is formed, and the guide pin 36 is set so as to engage with the guide groove 38 formed in the guide plate 37 fixed to the inner wall 80a of the housing 80. The guide groove 38 is the select row 1 of the shift select pattern 10.
1, up-down shift train 12 and reverse shift train 1
The grooves 38a, 38b, 38c are formed so as to correspond to No. 3, and the lower end of the groove 38b is at the upshift position U
The upper end of b is set to the downshift position D, the lower end of the groove 38c is set to the reverse shift position R, the intersection of the grooves 38a and 38b is set to the hold position H, and the intersection of the grooves 38a and 38c is set to the neutral position N, respectively. There is.

The compression spring 40 as the select position holding means is wound around the outer cylinder 22 on the inner wall 80c side of the housing 80.

The position plate 51 of the detent mechanism 50 is made of synthetic resin and is fixed to the rear R side inner wall 80d of the housing 80. The position plate 51 has an arc surface 55 centered on the axis of the main shaft 21. And this arc surface 5
5, an inclined surface 52 as a reaction means is formed continuously. On the circular arc surface 55, check grooves 55a and 55b for upshifting and downshifting, into which the balls 54 are fitted when the operating lever 20 is shifted to the upshift position U and the downshift position D, are formed, respectively.
The inclined surface 52 is formed obliquely intersecting the axis of the main shaft 21 from the up-down shift train 12 side toward the reverse shift train 13, and is inclined to the upper left as shown in FIG. Further, the inclined surface 52 is formed with a recess 53 as a holding means into which the ball 54 fits when the operation lever 20 is shifted to the reverse shift position R. In addition, the ball 54 of the detent mechanism 50 is provided at the intermediate portion of the outer cylinder 22 so as to be orthogonal to the main shaft 21 and project toward the rear R side.
It is accommodated in the cylinder 6, and is set so that it can be pressed against the arc surface 55 and the inclined surface 52 of the position plate 51 by the compression spring 58 via the spring receiver 57 built in the cylindrical body 56.

An operating shaft 27 extending downward is integrally fixed to the outer cylinder 22 on the axis of the operating lever 20, and a spherical portion 27a formed at the lower end of the operating shaft 27 is
It is fitted in the piece member 91 of the switch unit 90.
The switch unit 90 is provided with a select slide member 92 that slides in the select direction and a shift slide member 93 that slides in the shift direction via the piece members 91, and each slide member 92, 93. The magnet switches 94 and 95 are arranged corresponding to the above. And
The operation of the operating lever 20 in the select direction and the shift direction is detected by the magnet switches 94 and 95, and the select signal and the shift signal for designating the shift stage of the transmission are output.

Further, on the outer peripheral surface of the intermediate portion of the operating shaft 27,
An elastic member, for example, a rubber-like elastic body 60 is press-fitted,
A stopper bracket 61 having a substantially inverted U-shaped cross section is attached to the housing 80 so as to come into contact with the rubber-like elastic body 60 when the operation lever 20 is operated in the shift direction. On the top surface of the stopper bracket 61, a burr hole 61a is formed in which the operation shaft 27 is loosely fitted. Then, when the operation lever 20 is operated in the shift direction, the rubber elastic body 60 is brought into contact with the stopper bracket 61, and the guide pin 36 is brought into contact with the end portion of the guide groove 38 of the guide plate 37 while bending the elastic body 60. , Guide groove 38 of the guide pin 36
It is configured to reduce the impact with the ends.

Next, the operation of the embodiment of the present invention will be described. The operating lever 20 in the hold position H is held in the neutral position by the holding spring 32. From this state, move the operating lever 20 in the upshift direction (direction of arrow A).
Alternatively, when the main shaft 21 is tilted in the downshift direction (direction of arrow B), the holding spring 32 is gradually bent, whereby the operating force of the operating lever 20 changes. Further, at this time, the ball 54 fits into the check groove 55a or 55b, so that a moderation feeling can be obtained. Then, when the hand is released in this state, the operation lever 20 returns to the hold position H by the spring force of the holding spring 32.

In order to reverse-shift the operating lever 20 in the hold position H, the operating lever 20 resists the spring force of the compression spring 40 and the bush 23 of the main shaft 21 is centered on the spherical portion 20b and the bush 23 of the main shaft 21 is moved to the inner wall 80c of the housing 80. Tilt in the direction of arrow C until it comes into contact with. Then, first, the compression spring 40 causes the bending operation lever 20 to generate an initial operation force. When the operation lever 20 is further tilted in the same direction, the compression spring 40 is further bent during the operation, and the ball 54 contacts the inclined surface 52 of the position plate 51 to bend the compression spring 58. As a result, the operating force of the operating lever 20 changes.

Further, when the operating lever 20 which has reached the neutral position N is tilted in the reverse shift direction, the holding spring 32 is gradually bent. At this time, the holding spring 3
The support roller 31 sandwiched between the pair of two sandwiching portions 32b and 32c is disposed on the neutral position N side, and is located on the base portion 3 more than when it is disposed on the hold position H side.
Since it is close to 2a, the spring force of the holding spring 32 becomes larger than that during the up-down operation.
As a result, the operational feeling can be changed between the up-down operation and the reverse operation, so that driving safety can be improved. Further, when the operation lever 20 is shifted to the river shift position R, the ball 54 is fitted into the recess 53 of the position plate 51 and is held at the reverse shift position R.

From this state, the operating lever 20 is tilted in the reverse reverse shift direction to separate the ball 54 from the concave portion 53 of the position plate 51, and when the hand is released, it is operated by the spring force of the holding spring 32 and the compression spring 40. The lever 20 returns to the hold position H.

As described above, when the operation lever 20 is upshifted or downshifted, the neutral position holding means 3
The holding spring 32 of 0 can change the operating force of the operating lever 20. Further, when the operation lever 20 is selected in the neutral direction, the compression spring 40 and the detent mechanism 5 as the select position holding means.
The operation lever 20 is provided by the inclined surface 52 as a reaction force means of zero.
The operating force of can be changed.

When the operating lever 20 is operated in the reverse shift direction from the neutral position N, the holding spring 32 of the neutral position holding means 30 causes the operating lever 20 to move.
The operating force of the operating lever 2 can be changed and the recess 53 serves as a holding means for the detent mechanism 50.
0 can be held at the reverse shift position R. In this way, the operating force when the operation lever 20 is shift-selected can be changed, so that the driver can feel the shift operation and the operating feeling can be improved.

Further, a cylindrical body 56 for accommodating the balls 54
However, since it is arranged on the operation lever 20 side, that is, inside the housing 80, the entire apparatus can be downsized.

FIG. 9 is a perspective view showing another embodiment of the position plate, which is an inclined surface 52 of the position plate 51.
At a portion immediately before the ball 54 is fitted into the recess 53,
A convex portion 52a is provided as a moderation imparting means for reverse shift. As a result, the reverse shift position R
The operation force in the vicinity can be increased, and the operation feeling during reverse shift operation can be further improved.

Further, the circular arc surface 5 of the position plate 51
5, the ball 54 is provided with convex portions 55c and convex portions 55d as an upshift detent sensation imparting means and a downshift detent sensation imparting means, respectively, immediately before the balls 54 are fitted into the check grooves 55a and 55b. There is. As a result, the operating force in the vicinity of the upshift position U and the vicinity of the downshift position D can be increased, so that the operation feeling during the up / down operation can be further improved.

10 and 11 relate to another embodiment of the position plate, FIG. 10 is a perspective explanatory view of the position plate, and FIG. 11 is an enlarged sectional explanatory view taken along the line XI-XI of FIG.

On the circular arc surface 55 of the position plate 51 of this embodiment, balls 54 are provided with check grooves 55a and 55b.
The circular arc surfaces 55e and 55f as the ball riding-up prevention means are provided in the check grooves 55a and 55b immediately after the insertion into the check grooves 55a and 55b.
Are continuously provided on the bottom surface of.

The circular arc surfaces 55e and 55f are concentric with the circular arc surface 55 and have a radius R ₁ larger than the radius R of the circular arc surface 55, and the circular arc surface 5 is formed by the inclined surfaces 55g and 55h.
5 consecutive times. Other configurations are the same as those of the position plate 51 shown in FIG. 5, and the description thereof will be omitted.

Next, the operation of the position plate 51 provided with the arcuate surfaces 55e and 55f will be described. In FIG. 1, the operation lever 20 is moved in the upshift direction (arrow A direction).
Alternatively, when the operation lever 20 is operated in the downshift direction (arrow B direction) to reach a predetermined full stroke before the elastic member 60 abuts the stopper bracket 61, the operation lever 20 is further operated.
When the elastic member 60 is operated until the elastic member 60 abuts on the stopper bracket 61, in the position plate 51 shown in FIG. 5, the ball 54 rides on the slopes 55m, 55n of the check grooves 55a, 55b as shown by the phantom line in FIG. The operation feeling may be deteriorated due to a rapid change of (a feeling of stiff or stiff). However, according to the position plate 51 according to this embodiment, since the circular arc surfaces 55e and 55f are provided continuously to the check grooves 55a and 55b, it is possible to eliminate the riding phenomenon of the ball 54. As a result, it is possible to prevent the operation feeling from being deteriorated due to the riding of the ball, and it is possible to further improve the operation feeling during the up-down shift operation.

[0041]

As described above, according to the vehicle transmission of claim 1 of the present invention, when the operating lever is upshifted or downshifted, the neutral position holding means can change the operating force of the operating lever. it can. When the operation lever is selected in the neutral direction, the operation force can be changed by the selection position holding means and the reaction force means of the detent mechanism. When the operation lever is operated in the reverse shift direction from the neutral position, the operation force of the operation lever can be changed by the neutral position holding means, and the operation lever can be held in the reverse shift position by the holding means of the detent mechanism. You can As described above, since the operation force when the operation lever is shift-selected is changed, it is possible to give the driver a feeling that the shift operation has been performed, and the operation feeling can be improved.

Further, the ball is attached to the operation lever side,
Since the member for accommodating the ball can be arranged in the housing, the size of the entire device can be reduced.

Further, according to the vehicle transmission of the second aspect, the operational feeling can be changed during the up-down operation and the reverse operation, so that the driving safety can be improved.

Further, according to the vehicle transmission of the third aspect, since the operating force in the vicinity of the reverse shift position can be increased by the reverse shift detent sensation providing means, the operation feeling during the reverse shift operation can be obtained. It can be further improved.

According to another aspect of the invention, the operating force in the vicinity of the upshift position and in the vicinity of the downshift position is increased by the upshift detent sensation imparting means and the downshift detent sensation imparting means, respectively. Therefore, it is possible to further improve the operation feeling during the up / down shift operation.

According to the fifth aspect of the present invention, the ball riding-on prevention means can prevent the operation feeling from being deteriorated due to the riding of the ball near the upshift position and the downshift position. Therefore, the operation feeling during the up-down shift operation can be further improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view of a vehicle transmission according to an embodiment of the present invention.

2 is a cross-sectional view taken along the line II-II of FIG.

3 is a cross-sectional view taken along the line III-III of FIG.

4 is a cross-sectional view taken along the line IV-IV of FIG.

FIG. 5 is a perspective explanatory view of a position plate.

FIG. 6 is an explanatory plan view of a switch unit.

FIG. 7 is a perspective explanatory view of a guide plate.

FIG. 8 is an explanatory plan view of a shift select pattern.

FIG. 9 is an explanatory perspective view showing another embodiment of the position plate.

FIG. 10 is a perspective explanatory view showing another embodiment of the position plate.

11 is an enlarged cross-sectional view taken along the line XI-XI of FIG.

[Explanation of symbols]

 E Vehicle transmission U Upshift position D Downshift position R Reverse shift position H Hold position N Neutral position 10 Shift select pattern 11 Select row 12 Up-down shift row 13 Reverse shift row 20 Operating lever 21 Spindle 22 Outer cylinder 24 Socket 25 Axis 27 Operation shaft 30 Neutral position holding means 31 Support roller 32 Holding spring 32a Base portion 32b Holding portion 32c Holding portion 35 Mounting shaft 36 Guide pin 37 Guide plate 38 Guide groove 40 Select position holding means (compression spring) 50 Detent mechanism 51 Position plate 52 Reaction Force Means (Inclined Surface) 52a Reverse Mode Shift Feeling Improving Means (Convex) 53 Holding Means (Concave) 54 Ball 55 Arc Surface 55a Check Groove 55b Check Groove 55c Moderation imparting means for convex shift (convex portion) 55d Moderation feeling imparting means for downshift (convex portion) 55e Ball ride-on prevention means (arc surface) 55f Ball ride-on prevention means (arc surface) 56 Cylindrical body 60 Elastic member (rubber-like elasticity) Body 61 Stopper bracket 80 Housing 90 Switch unit

Claims (5)

[Claims] 1. An up-down shift train is formed on one side of a select train so as to be orthogonal to the select train, and a reverse shift train is formed on the other side of the select train in parallel with the up-down shift train. A vehicle transmission in which an up / down shift and a reverse shift are performed by an operation lever arranged at a position such that the operation lever can be held at a neutral position when the operation lever is tilted in the up / down shift direction and the reverse shift direction. The neutral position holding means for urging the operating lever, the select position holding means for urging the operating lever from the reverse shift row side to the up-down shift row side when the operation lever tilts in the select direction, and the stroke of the select position holding means. Hold the reaction lever and the operating lever in the reverse shift position, which function from the middle of A detent mechanism having a holding means is further provided, and the detent mechanism is composed of a position plate provided with an inclined surface as a reaction force means and a recess as a holding means, and a ball pressed against the position plate. A vehicle transmission in which the ball is attached to the operation lever side on the housing side. 2. The neutral position holding means includes a torsion coil-shaped holding spring, and the holding spring has a base portion attached to a mounting shaft arranged in the casing, and a base portion along the select direction from the base portion. And a pair of parallel sandwiching portions, and the base side of the operating lever is sandwiched between the pair of sandwiching portions so that the operation feeling during up-down operation and reverse operation can be made different. The vehicular transmission according to claim 1, wherein: 3. The vehicular transmission according to claim 1, further comprising a reverse shift detent providing means provided near the reverse shift position of the position plate. 4. A vehicle according to claim 1, wherein an upshift detent sensation imparting means and a downshift detent sensation imparting means are provided in the vicinity of the upshift position and the downshift position of the position plate, respectively. Transmission. 5. The vehicle transmission according to claim 1, further comprising ball run-up prevention means provided near the upshift position and near the downshift position of the position plate, respectively.