JPH041228B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a tiltable shift lever device for an automatic transmission for a tilt-cab vehicle, and more specifically, to an automobile in which a cab is tiltably mounted on a vehicle frame. This invention relates to a foldable shift lever device for an automatic transmission for a tilt cab vehicle, in which a floor shift type shift lever such as a vehicle (mainly a truck) can be bent at a predetermined position.

[Conventional technology]

2. Description of the Related Art In recent years, so-called floor shift type shift levers, in which the shift lever of an automatic transmission is disposed on the vehicle floor between a driver's seat and a passenger seat, have become popular in automobiles and the like. A shift lever that stands upright from the vehicle floor inside the vehicle is used to switch gears of the automatic transmission via a remote control ring system (control cable, etc.).

In automobiles and the like equipped with this floor shift type shift lever, the driver often gets in and out of the vehicle from the passenger seat in places where parking spaces are narrow or where traffic is heavy. In this case, when moving from the driver's seat to the passenger's seat, or from the passenger's seat to the driver's seat, the shift lever, which stands upright from the vehicle floor, becomes a protrusion that gets in the way, making it difficult to move from the driver's seat to the passenger's seat.

Therefore, the shift lever conventionally installed on the vehicle floor was divided into upper and lower parts, and the two parts were connected with a pin to make the shift lever bendable. This made it easier to change seats. type shift lever device (for example, Utility Model 56-
32887) has been proposed.

However, in the above conventionally proposed folding shift lever device for automatic transmission,
When the seat is moved, the shift lever is bent and tilted in the direction of the gear change operation (vehicle longitudinal direction). Moreover, no means is taken to restrict the bending operation position of the shift lever.

For this reason, when the shift lever is bent toward the front of the vehicle and laid down, the tilted shift lever tends to get in the way, especially in cab-over type vehicles.
Furthermore, when the shift lever is bent toward the rear of the vehicle and laid down, it tends to interfere with the parking brake lever, making it impossible to lower the shift lever to a sufficiently low position, and the shift lever tends to get in the way. Also,
When the shift lever is bent, the bent portion is exposed and forms a protrusion, and it is conceivable that clothing may be caught on the bent portion when moving the seat in the vehicle interior.

Moreover, if you bend the shift lever in the neutral position with the engine running while the car is stopped and accidentally touch the shift lever when moving from the driver's seat to the passenger's seat, the transmission will inadvertently shift into drive range. There are concerns about the problems that are likely to be shifted.

Furthermore, due to its bending structure, the upper lever part on the shift knob side is pushed down once against the spring along the J-shaped pin groove formed in the lower lever part.
Next, in this state, the upper lever part is rotated around the axis, and after being pulled up by the spring, the upper lever part is bent and brought down. For this reason, there was a problem in that the shift lever was located below the side of the driver's seat, making it difficult to bend and operate it in a normal driving position.

Therefore, the applicant first developed a cover that is fixed to the vehicle floor side and covers the bent part of the shift lever.
We propose a foldable shift lever device for automatic transmissions that has a bending guide groove that is visually exposed to the outside and allows the upper lever to be bent in one direction approximately perpendicular to the direction of gear shift operation only in the parking range. (Actual Application No. 60-091385).

With this foldable shift lever device for automatic transmissions, the folded shift lever does not get in the way when moving the seat, making it extremely easy to move the seat inside the vehicle. It is safe because the transmission will not operate inadvertently even if any part of the body touches it. In addition, excellent performance was obtained, including good bending and operability of the shift lever.

[Problem that the invention seeks to solve]

Generally, in a tilt cab vehicle, a cab mounted on a vehicle frame is configured to be rotatable about a rotation center of the cab near its front end as a fulcrum, and a shift lever is attached to the floor of the cab. The remote control link system has also been devised to prevent the automatic transmission from being switched inadvertently when the cab is tilted.
Its structure must be extremely complex.

Therefore, it is conceivable to attach the shift lever to the vehicle frame side. When the foldable shift lever device for an automatic transmission shown in the configuration (example) of the prior application described above is applied, the upper lever part is folded to the passenger seat side perpendicular to the shift lever speed change operation direction. If the cab is tilted in this position, the shift lever, which has been tilted to a substantially horizontal position by the spring, will come into contact with the cab floor, which may deform the cab floor or damage the shift lever.

Although it is possible to use a caution plate to alert the driver during operation, this is not necessarily an effective method, as the cab may be accidentally tilted while the shift lever is still in the tilted position.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a foldable shift lever device for an automatic transmission that improves seat mobility and safety as described above, so that even if the cab is tilted by mistake while the shift lever is tilted, the cab floor and shift The purpose is to prevent the lever from being damaged.

[Means for solving problems]

Therefore, the present invention adopts the following configuration as a means for solving the above-mentioned problems.

That is, the present invention provides a foldable shift lever device for an automatic transmission for a vehicle with a tilt cab as described above, in which the shift lever is attached to the vehicle frame side when the cab is tilted, and the upper lever portion is formed in a day tent plate. The structure uses the spring force of the spring pressed against the end surface of the detent groove to tilt it toward the passenger seat, and when the stopper that blocks the bending guide groove formed on the detent plate is removed, the upper lever part It is characterized in that the spring force of the spring is set so that it stops once at an intermediate position.

Specifically, using FIGS. 1, 16, and 17 as examples, the tilt cab vehicle is
The cab T is placed on a vehicle frame V and is configured to be rotatable about a cab rotation center U near the front end thereof as a fulcrum. The shift lever 10 is arranged between the driver's seat and the passenger seat, and is divided into two parts: an upper lever part 20 on the shift knob 21 side and a lower lever part 30 on the transmission side.
Both lever parts 20, 30 are foldably connected by a joint means 40.

The shift lever 10 is attached so as to be left behind on the vehicle frame V side when the cab T is tilted. The detent plate 70 fixed to the fixed member has a step-shaped detent groove 7.
3 is formed, and the upper lever portion 20 is pressed against one end surface 73a of the detent groove by a spring 50.

Further, a bending guide groove 76 is formed continuously with the parking range groove 75 in the detent groove and extends toward the passenger seat side, and a stopper 80 for blocking the bending guide groove 76 is attached to the detent plate 70.

Furthermore, the spring force of the spring 50 is set so that the upper lever portion 20 temporarily stops at an intermediate position (solid line position) when the stopper 80 is removed.

[Effect]

According to the above-mentioned means, in a shift position other than the parking range, the upper lever portion 20 of the shift lever 10 and the bending guide groove 76 formed in the detent plate 70 do not match, and the shift lever 10 cannot be bent. .

Then, when the shift lever 10 is shifted to the parking range, the upper lever portion 20 and the bending guide groove 76 of the detent plate are aligned, and the shift lever 10 is placed in a bendable position. However, the stopper 80 prevents the upper lever portion 20 from being bent.

Therefore, when the stopper 80 is removed, the upper lever portion 20 falls toward the passenger seat along the bending guide groove 76 due to the force of the spring 50. At this time, because the spring force of the spring 50 is adjusted, the upper lever portion 20 does not fall all at once to the tilted position (the position shown by the imaginary line in FIG. position). Thereafter, the upper lever section 20 is pushed down by hand to a predetermined position (the imaginary line position in FIG. 16).

With this shift lever 10 tilted toward the passenger seat side (the state shown by the broken line in Fig. 17), the driver's seat can be moved;
In other words, it is extremely easy to move from the driver's seat to the passenger seat or from the passenger seat to the driver's seat.

Further, by placing the upper lever portion 20 in an upright state along the bending guide groove 76 of the detent plate 70, the shift lever 10 returns to its original state.

Even if you accidentally tilt the cab T while keeping the upper lever section 20 down as shown by the broken line in FIG. Since there is no spring force acting on it and this intermediate position is inclined, it is smoothly raised up by the floor F of the cab and automatically returns to its original upright position.

〔Example〕

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

FIG. 1 is a schematic side view of a tilt cab vehicle equipped with a foldable shift lever device for an automatic transmission according to an embodiment of the present invention, and FIGS. 2 to 5 are embodiments of the present invention. Fig. 6 to Fig. 1 show a foldable shift lever device for an automatic transmission related to
Figure 5 shows the detent plate, which is one of the components.
The slide stopper, dust cover, and slide cover are shown respectively.

First, the foldable shift lever device is roughly divided into a shift lever 10, a torsion spring 50 attached to the shift lever 10, and a shift lever 1.
0, a lower bracket 60 that supports the shift lever 10, and a daytent plate 7 that regulates the shift position of the shift lever 10.
0, a slide stopper 80 that prevents the shift lever 10 from being bent, a dust cover 90 that covers the day tent mechanism, a slide cover 100 that displays the gear shift position, a dust boot 110, and the like.

In these figures, reference numeral 10 indicates the entire shift lever, which is disposed substantially upright between a driver's seat and a passenger seat (not shown). The shift lever 10 has an upper lever portion 2 on the shift knob 21 side.
0 and a lower lever portion 30 on the transmission side, both of which are foldably connected by a joint means 40.

That is, the lower end of the upper lever part 20 has a third
As shown in the figure, a pipe-shaped rotating shaft 22 is welded. On the other hand, the lower lever portion 30 is comprised of a fork-shaped shift lever support 31 and a pipe-shaped rotating shaft 32, as shown in FIGS. 3 and 4, and both are integrated by welding. A bolt 41 passes through a hole formed in the support 31 and is fastened with a nut 42 via a spring washer. The pipe-shaped rotating shaft 22 of the upper lever part is concentrically arranged on the outer periphery of this bolt 41 via a collar 43 and a pair of resin flanged bushes 44, 44.
0 is coupled rotatably about the axis Z-Z of the bolt 41 in the left-right direction (vehicle width direction) in the paper of FIG.

Further, a torsion spring 50 is wound around the outer periphery of the pipe-shaped rotating shaft 22, and its protruding intermediate portion 51 and both end portions 52, 52 are connected to the upper lever portion 20 and the support 31 of the lower lever portion, respectively. It is locked. The spring force of this torsion spring 50 biases the upper lever portion 20 in the right direction (shift lever bending direction) in the paper of FIG.

As shown in FIG. 16, the spring force of the torsion spring 50 is such that when a stopper, which will be described later, is removed, the upper lever portion 20 does not fall all at once to the tilted position shown by the imaginary line, but once moves to the solid line. The size is set so that it will stop at the halfway point shown.

Reference numeral 60 denotes a lower bracket, and a plurality of bolts and nuts are attached to the chassis frame cross member S fixed to the vehicle frame V shown in FIG. It is integrally fixed by. The lower bracket 60 supports the shift lever 10 rotatably in the longitudinal direction of the vehicle.

That is, the upper surface of the lower bracket 60 has a pair of left and right upright portions 62a, 62a, as shown in FIG.
A shift lever retainer 62 is integrally fixed by welding. a pair of upright parts 62a,
A detent plate 70 that regulates the shift position of the shift lever 10 is arranged on the outside of the shift lever 10, and one bolt 63 is inserted through these holes.
is fastened with a nut 64 via a spring washer. In addition, a pair of upright portions 62a, 62
A collar 65 and a pair of resin flanged bushes 66, 6 are attached to the outer periphery of the bolt 63 located inside a.
A pipe-shaped rotating shaft 32 of the lower lever portion 30 is arranged concentrically with the lower lever portion 30 interposed therebetween. This results in
The shift lever 10 is rotatably supported in the left-right direction (vehicle front-rear direction) in the paper of FIG. 3 about the axis XX of the bolt 63. As shown in FIG. The shift positions of the shift lever 10 are parking range (P range), reverse range (R range), neutral range (N range), drive range (D range), third range (3 range), and second range (from the front of the vehicle). They are arranged in a line in 7 positions: 2 range) and low range (L range).

Further, a bevel gear 33 is fixed to the pipe-shaped rotating shaft 32 by means such as welding, caulking, press-fitting, or the like. Then, the lower bevel gear 34 that engages with the fastening bevel gear 33 is mounted on a pin shaft 67 that is fitted into a hole in the horizontal base 62b of the shift lever retainer 62 and welded to it by a nut 35 via a plate washer and a spring washer. It is rotatably mounted. Lower bevel gear 34
A control lever 36 is welded to the
It is rotatable around the axis YY of the pin shaft 67. 37, 37 are resin flanged bushes interposed between the pin shaft 67 and the lower bevel gear 34. Furthermore, a pin 38 is fixed to the tip of the control lever 36, and the end of the control cable is fitted onto this pin 38 via a rubber bushing (not shown). As a result, the rotational movement of the shift lever 10 around the axis XX is converted into the rotational movement of the control lever 36 around the axis YY by the pair of bevel gears 33 and 34.
Furthermore, the control cable is configured to reciprocate in the longitudinal direction of the vehicle to switch the automatic transmission to a predetermined gear position. In addition, Figure 2,
A chain line C in FIGS. 3 and 5 indicates the central axis of the control cable.

The detent plate 70 has the bolts 6 passing through a pair of holes 71, 71 formed in the side walls 70a, 70a in the vehicle width direction, as shown in FIGS. 6 to 8.
3, and a hole 72 formed in the vehicle front wall 70c.
The shift lever retainer 62 is attached by a bolt 69 that passes through the shaft and is fastened to a nut 68 welded to the front upright portion 62c of the shift lever retainer 62 shown in FIG.

The upper wall 70b of the detent plate 70 has a curved shape centered on the central axis (axis X-X) of the pair of holes 71, and the upper wall 70a has the shift lever 10 as shown in FIG. A step-shaped detent groove 73 is formed that extends in the shift lever speed change operation direction (vehicle longitudinal direction) for regulating the shift position of the shift lever. The above-described upper lever portion 20 is pressed against the end surface 73a of the detent groove 73 on the passenger seat side by the spring force of the torsion spring 50. At the R range, N range, D range, 3 range, 2 range, and L range positions on the end surface 73a of the detent groove 73, an upper lever is provided in order to give a sense of moderation to the shift operation of the shift lever 10 and prevent erroneous operation. Arc-shaped grooves 73 _R , 73 _N , 73 corresponding to the outer peripheral surface of the portion 20
_D , 73 ₃ , 73 ₂ and 73 _L are formed, respectively. In this way, N range, D range, and 3 ranges are obtained on the same surface, and R range and 2 ranges are obtained on the same surface.
The range is the position where the shift lever 10 is operated around the axis Z-Z toward the driver's seat (upper part of Figure 2), and the P range and L range are the positions where the shift lever 10 is similarly operated further towards the driver's seat. It is now possible to obtain it by doing so.

Further, in the portion of the upper lever portion 20 that comes into contact with the detent groove 73, there are step portions 74 _P , 74 _R , 74 _N , 74 ₃ , 74 ₂ and 7 of the detent groove.
4. A parallel width across flats 23 is formed to abut on _L and accurately set the gear shift operation position. Then, the P range groove 75 in the detent groove 73
The width W ₂ is set to be smaller than the outer diameter D ₁ of the upper lever portion 20 shown in FIG. 3, and slightly larger than the width W ₁ between the widths across flats 23.

Furthermore, the detent plate 70 has a bending guide groove 76 (hereinafter referred to as the guide groove 76) extending to the passenger seat side continuously from the P range groove 75.
is formed. This guide groove 76 is substantially perpendicular to the shift lever speed change operation direction, and an axis A obtained by extending its center line extends in a direction passing through the axis XX, and the front surface of the vehicle is located at the step of the P range groove 75. The _rear surface of the vehicle is cut so that the width W ₃ of the intermediate portion is set to be slightly larger than the outer diameter D ₁ of the upper lever portion 20 shown in FIG. The width W ₄ of the lower end is the above P range groove 75
The width is set to be approximately the same as the width _W2 . Also,
Side wall 70a of the daytent plate 70 on the passenger side
, a pin 77 forming a rotating shaft of a slide stopper (to be described later) and a pin 78 to which one end of a return spring of the slide stopper (to be described later) is locked are located on the inner circumferential side closer to the axis X-X. It is press-fitted parallel to the main body and fixed integrally by welding.
Further, an arcuate groove 79 centered on the axis O-O of the pin 77 is formed on the outer circumferential side thereof, to which a release knob of a slide stopper to be described later is attached.

The rotation center line O-O of the pin 77 forming the rotation axis of the slide stopper is located on the axis connecting the speed change operation rotation center axis X-X of the shift lever 10 and the center line A of the guide groove 76. It is arranged like this.

As shown in FIGS. 9 to 11, the slide stopper 80 has an upper wall 80b bent at a right angle, which blocks the guide groove 76 at the outer peripheral edge of a side wall 80a and comes into contact with the upper lever portion 20. It has a substantially L-shaped cross section, and a pipe-shaped rotating shaft 81 that fits into the pin 77 is integrally provided at the lower end by welding. The outer peripheral surface 80d of the upper wall 80b is aligned with the central axis (axis O-) of the pipe-shaped rotating shaft 81.
The upper wall 70 of the detent plate 70 has a curved shape centered at O).
It is adapted to slide along the inner circumferential surface 70d of b. In addition, the side wall 8 of the slide stopper 80
0a, a knob mounting shaft 82 that fits into the circular arc groove 79 of the detent plate on its outer peripheral edge, and a pin 83 on its inner peripheral edge to which one end of a return spring to be described later is locked, are respectively aligned with the axis O. -O
It is press-fitted in parallel to the main body and fixed integrally by welding.

Furthermore, the front end surface (left end surface in FIG. 10) of the slide stopper 80 that comes into contact with the upper lever portion 20 when the shift lever is returned is aligned with the axis O-O and the upper wall 8.
It is formed as an inclined surface 80c forming an angle θ with respect to a plane B connecting the front end surface of 0b.

As shown in FIG. 4, this slide stopper 80 has a pipe-shaped rotating shaft 81 fitted onto a pin 77 provided on the side wall 70a of the detent plate via a pair of resin flanged bushes 84, 84. As a result, the snap spring 8 is rotatably supported around the axis O-O of the pin 77, and is further fitted into the annular groove of the pin 77 via the spacer 85.
It is held axially by 6. The rotation angle of the slide stopper 80 is determined by the knob mounting shaft 8.
2 and the circular arc groove 79 of the detent plate, the angle is restricted to a certain range.

87 is a return spring (torsion spring) for the slide stopper 80, the middle part of which is wound around the pipe-shaped rotating shaft 81, and both ends of which are connected to the pin 78 of the detent plate and the pin 83 of the slide stopper, respectively. It is locked to. This return spring 87 is designed so that the slide stopper 80 is connected to the guide groove 7 so that the shift lever 10 does not fall even when it is in the P range.
6 is biased in the direction of closing. That is, the slide stopper 80 is biased to the left in the paper of FIG. 3 (towards the front of the vehicle), and the knob mounting shaft 82 is in the position shown in FIG. (Note that a tension spring can also be used as the return spring 87). In this way, the slide stopper 80 that blocks the guide groove 76 functions as a part of the detent plate 70 by preventing the shift lever 10 from bending during normal operation. At the same time, the outer circumferential surface 80d of the slide stopper is aligned with the inner circumferential surface 70d of the detent plate to close the guide groove 76 to ensure sealing performance. A plate washer 88 is fitted onto the knob mounting shaft 82 and interposed between the detent plate 70 and the slide stopper 80.

By the way, when the slide stopper 80 is removed as shown in FIG. 16, the upper lever portion 20 is pushed against the front end surface of the guide groove 76 (the left end surface in FIG. 6) due to the restoring force of the return spring 87 of the slide stopper. Being forced. The inclined surface 24 defined by the width across flats 23 formed on the upper lever section 20 mentioned above comes into contact with the front end surface of the guide groove 76, so that the upper lever section 20 is reliably stopped at the solid line position in FIG. has been done.

Note that FIG. 4 is partially cut away along a plane including the knob attachment shaft 82 so that the attachment relationship of the slide stopper 80 and the stopper release knob can be easily understood.

The dust cover 90 has a box shape that covers the aforementioned daytent mechanism, and is made of a resin material. And the dust cover 90 is
As shown in FIGS. 12 to 14, the detent groove 73 (P range groove 7
5), a detent groove 93 (P range groove 95) having a similar shape corresponding to the guide groove 76 and the arcuate groove 79;
It is provided with a guide groove 96 and an arcuate groove 99 (FIG. 5). The upper wall 90b of the dust cover 90 has a curved shape centered on the axis XX, similar to the detent plate 70, and the inner surface 90d has a pair of parallel protrusions 91, 91 along the curved shape. It is formed. Both protrusions 91, 91 are arranged on the outer circumferential surface 70e of the detent plate upper wall 70b and the inner circumferential surface 90d of the dust cover upper wall 90b, both of which have a curved shape.
It serves as a guide for the slide cover 100 (FIGS. 3 and 4) inserted in the gap between the two. This dust cover 90 has left and right side walls 90a,
It is attached to the detent plate 70 with four screws 94 tightened into holes 92 formed in the detent plate 90a. Further, a stopper release knob 89 made of resin is screwed to the tip of the knob attachment shaft 82 that protrudes through the arcuate grooves 79 and 99. A plate washer 98 is fitted onto the knob mounting shaft 82 and interposed between the detent plate 70 and the dust cover 90. Note that the lower inner circumferential surface 90c of the dust cover 90 is formed as an inclined surface (draft angle during injection molding) from the viewpoint of sealability and assemblability with a dust boot 110, which will be described later.

The slide cover 100 has an outer peripheral surface 70e of the detent plate upper wall 70b and a dust cover upper wall 9.
It slides together with the shift lever 10 along the inner circumferential surface 90d of 0b, and has the function of displaying the gear shift position and covering and sealing the guide groove 76 in modes other than the P range. This slide cover 1
00 is in the shape of a flexible, ultra-thin plate manufactured from a resin material, and fits into the width across flats 23 of the upper lever portion, and has a 15th plate in order to allow the upper lever portion 20 to be bent. A cutout groove 101 is formed in the end face (lower face in the figure) on the passenger seat side shown in the figure.

As shown in FIG. 3, the dust boot 110 includes a rubber base 112 in which a reinforcing metal plate 111 having an L-shaped cross section is embedded, and a rubber seal that is fitted and attached to an outer peripheral groove 113 formed in the base 112. 114. base 112
is attached to the lower bracket 60 in advance by fastening three screws 115 shown in FIG. 2 to nuts 116 (FIG. 5) welded to the lower bracket 60. Then, the upper outer circumferential surface of the base 112 is tightly fitted into the inner circumferential surface 90c of the dust cover, thereby sealing the space between them. Although the dust boot 110 is shown in a free state in FIGS. 3 and 5, when it is actually mounted on a vehicle, the seal portion 114 is pushed down by the vehicle floor F shown by the imaginary line in FIG. , its seal portion 114
The edge 117 seals between the vehicle floors F. The dust cover 110 is installed between the lower bracket 60, the dust cover 90, and the vehicle floor F, and prevents water, mud, dust, etc. from entering the vehicle interior, and also blocks noise from outside the vehicle interior.

Incidentally, the tilt cab vehicle on which the shift lever device of the automatic transmission described above is mounted has a cab T placed on the vehicle frame V as shown in FIG.
is configured to be rotatable about a cab rotation center U near its front end. When the cab T is tilted as shown in the imaginary line in Figure 1,
The shift lever 10 is configured to be left behind on the vehicle frame V side. Note that W indicates a wheel.

In the foldable shift lever device for an automatic transmission configured as described above, the shift lever 10 is operated around the axis Z-Z along the detent groove 73 of the detent plate 70, and the shift lever 10 is operated around the axis Z-Z along the detent groove 73 of the detent plate 70.
Operate around X. As a result, the control lever 36 is rotated around the axis Y-Y via the pair of bevel gears 33 and 34, and the control cable (not shown) is reciprocated in the longitudinal direction of the vehicle, thereby achieving an automatic transmission (not shown). Operate the machine's manual valve lever to switch to the specified gear.

Shift position other than P range (shift position)
In this case, the upper lever portion 20 and the guide groove 76 formed in the detent plate do not match, and the shift lever 10 cannot be bent. and,
When the shift lever 10 is shifted to the P range, the upper lever part 20 tries to fall down due to the spring force of the torsion spring 50, but it comes into contact with the slide stopper 80 in the guide groove 76 and stops at that position, and is bent. is prevented. At this time,
Upper lever part 2 by torsion spring 50
The load in the tilting direction of 0 is mainly received by the detent plate 70 via the plate washer 88 fitted to the knob mounting shaft 82.

When folding the shift lever 10,
It is operated as follows.

First, the shift lever 10 is shifted to the P range. At this shift position, the upper lever portion 20 of the shift lever and the guide groove 76 provided in the detent plate 70 align, and the shift lever becomes a bendable position. However, the shift lever bending operation is prevented by the slide stopper 80.

Next, the stopper release knob 89 provided on the side surface of the dust cover 90 is moved clockwise (in the direction of arrow G) in FIG. 5 along the arcuate groove 79 while resisting the return spring 87. Then, the slide stopper 80 also rotates around the axis OO at the same time, and the guide groove 76 is released.

When the slide stopper 80 is released from the locked state, the torsion spring 50 is acting on the upper lever section 20 in the direction of tilting it, so that it will naturally fall toward the passenger seat as soon as the slide stopper 80 completes its movement. . At this time, because the spring force of the torsion spring 50 is adjusted, the upper lever part 20 does not fall all at once from the imaginary line position in FIG. 16 to the imaginary line position in the direction of the arrow.
It will stop once at the solid line position.

At this time, the slide stopper 80 is
It is in contact with the upper lever part 20 by 0c.
Therefore, the upper lever portion 20 is pressed against the front end surface (the left end surface in FIG. 6) of the guide groove 76 by the restoring force of the return spring 87. and,
The inclined surface 24 defined by the width across flats 23 formed on the upper lever portion 20 comes into contact with the front end surface of the guide groove 76,
The upper lever portion 20 has an inclined surface 24 that is connected to the guide groove 7.
It stops securely at the position shown in solid line in FIG. Note that by selecting the setting position of the inclined surface 24 based on the width across flats 23 formed on the upper lever section 20, the intermediate position of the upper lever section 20,
That is, it is possible to accurately and arbitrarily set the solid line position. Further, a protrusion may be formed in place of the concave inclined surface 24 formed on the upper lever portion 20,
A positioning means such as a so-called lock ball mechanism may be provided, which includes a groove, a ball that engages with the groove, and a spring that presses the ball against the groove.

Thereafter, the upper lever part 20 is pushed down by hand in the direction of the arrow (imaginary line) until it comes into contact with the lower end surface of the guide groove 76 to a predetermined position as shown in the imaginary line. When the shift lever is tilted down, the outer diameter D ₁ portion of the upper lever portion 20 passes through the groove width W ₃ portion of the guide groove 76, and then the width across flats 23 of the upper lever portion passes through the groove width of the guide groove 76. Engage with W ₄ part. Therefore, even when the shift lever is in the tilted state, the upper lever portion 20 is held within the guide groove 76 with a slight gap.

When the upper lever portion 20 falls, the slide stopper 80 rotates around the axis O--O by the action of the return spring 87 and returns to the original state shown in FIG. 3 in which the guide groove 76 is closed. When the shift lever 10 is in the tilted state, the upper lever part 20 is roughly held by the guide groove 76 of the detent plate and the inclined surface 80c of the slide stopper, and is further biased by the return spring 87 of the slide stopper to push the upper lever part 20. The part 20 is held securely, and safety is high. Furthermore, even if the shift lever is tilted down with the engine running, the gap between the upper lever portion 20 and the guide groove 76 is small and the two are biased by the return spring 87, so the rattling noise between the two will be suppressed. It's hardly a problem.

Then, with the shift lever in the tilted state, the driver's seat is moved, that is, from the driver's seat to the passenger seat, or from the passenger seat to the driver's seat.

In particular, in the case of a cab-over type vehicle as shown in FIG. By folding the shift lever 10 toward the front of the seat E, the shift lever 10 that has been folded down does not get in the way when moving from the driver's seat to the passenger seat, making it extremely easy to move the seat. Note that F indicates the floor of the cab, and H indicates the steering wheel.

Subsequently, in order to return the shift lever 10 to its original state (regular P range), the following operation is performed.

That is, without operating the stopper release knob 89, the fallen upper lever portion 20 is moved to the upright state along the guide groove 76 of the detent plate, centering on the axis Z-Z, while resisting the torsion spring 50. Then, as the upper lever portion 20 moves, the slide stopper 80 also moves to the inclined surface 80c.
rotate around the axis O-O (arrow G in Figure 5)
direction) and open the guide groove 76. Then, at the same time as the upper lever part 20 passes, the return spring 87 automatically returns to the original position of blocking the guide groove 76 shown in FIGS. 2 and 3. Therefore, from now on, the shift lever 10 is reliably held in its normal upright position by the slide stopper 80.

Furthermore, as described above, the torsion spring 5 is installed so that when the stopper 80 shown in FIG.
A spring force of 0 is set. Therefore, no spring force is applied to the upper lever portion 20 from the imaginary line position to the solid line position in FIG. 16. Furthermore, the upper lever portion 20 at the solid line position is inclined. Therefore, even if the cab T is tilted by mistake while the upper lever portion 20 is tilted toward the passenger seat side as shown by the broken line in FIG. 17, the upper lever portion 20 will be smoothly moved by the floor F of the cab T It will wake up and automatically return to its original upright position.

As explained above, according to this embodiment, the shift lever 10 is bent and tilted toward the passenger seat side in the vehicle width direction, which is substantially perpendicular to the direction of shift operation, so that the seat can be easily moved within the vehicle interior. Become.

Furthermore, since the shift lever 10 can only be bent when shifted to the P range, in the unlikely event that the shift lever 1 is bent while the engine is running while the vehicle is stopped.
0 and leave the driver's seat, or if a part of your body accidentally touches the shift lever 10 while moving the seat, the shift lever 10 is securely held in the P range, so the vehicle will not accidentally shift. There is no risk of it starting to move, so it is safe.

Further, from the appearance, the fact that the shift lever 10 is foldable and the direction in which it is folded can be intuitively recognized. Moreover, by simply moving the stopper release knob 89 of the slide stopper 80 toward the front of the vehicle, the spring force of the torsion spring 50 pressing the upper lever portion 20 against the detent groove end surface 73a of the detent plate is activated. Since the upper lever part 20 automatically falls down when the shift lever is turned, the shift lever bending operation is extremely easy.

Moreover, when the stopper 80 is removed, the upper lever part 20 does not fall down all at once to the imaginary line position in FIG. 1, but once stops at the solid line position in FIG. It does not hit the driver's hand operating the stopper release knob 89 or the leg of the person sitting in the passenger seat. Therefore, the limbs of the driver and those sitting in the passenger seat can be protected, making it safe.

Furthermore, even if the cab T is tilted by mistake while the upper lever section 20 is tilted toward the passenger seat side, the upper lever section 20 will be smoothly raised by the floor F of the cab T and will automatically return to its upright position. Since the shift lever 10 is restored to the position shown in FIG.

According to this embodiment, the spring force of the torsion spring 50 for the day tent is used to tilt the upper lever portion 20, so there is no need for a new spring for tilting the upper lever portion 20. , can be manufactured at low cost. In addition, an unreasonable force is not applied to the engaging portion (bending portion) of the shift lever 10, and the shift lever 10
It is also possible to improve the durability of Furthermore, since the bent portion of the shift lever 10 is covered by the detent plate 70 and the dust cover 90, it is difficult to hang clothing on the bent portion or apply grease for lubrication when the shift lever is tilted down. There is no risk of it getting dirty.

Although the present invention has been described in detail below with reference to specific examples, the present invention is not limited to the above-mentioned examples, but includes various embodiments within the scope of the claims. For example, a tension spring can be used as the spring that presses the upper lever portion against the end surface of the detent groove.

〔Effect of the invention〕

As explained above, according to the present invention, the shift lever is tilted toward the passenger seat side perpendicular to the direction of gear change operation, so the folded shift lever does not get in the way when moving the seat, and the It becomes extremely easy to move.

In addition, since the shift lever can only be bent in the P range, in the unlikely event that the shift lever is moved away from the driver's seat while the engine is running while the vehicle is stopped, or that a part of the body is accidentally touched by the shift lever while moving the seat. Even if touched, the transmission will not operate inadvertently, making it safe.

Moreover, the shift lever can be folded down with the simple operation of removing the stopper, making the shift lever extremely easy to bend.

Furthermore, even if the cab is tilted by mistake while the shift lever is tilted, the cab floor and shift lever will not be damaged.

In addition, since the upper lever part is tilted using the spring that presses it against the end surface of the daytent groove of the daytent plate, there is no need for a new spring to tilt the upper lever part, and it can be manufactured at low cost. .

[Brief explanation of drawings]

FIG. 1 is a schematic side view of a tilt cab vehicle in a cab tilted state, which is equipped with a foldable shift lever device for an automatic transmission according to an embodiment of the present invention;
2 to 5 show a foldable shift lever device for an automatic transmission according to an embodiment of the present invention, and FIG. 2 is a plan view of the shift lever shifted to the parking range; Figure 3 is a longitudinal cross-sectional view of the main part taken in the longitudinal direction of the vehicle, Figure 4 is a cross-sectional view taken along the - line in Figure 3, Figure 5 is a side view of Figure 2, and Figures 6 to 8. 6 shows a detent plate enlarged, FIG. 6 is a plan view seen from the direction of the arrow in FIG. 7, FIG. 7 is a side view, FIG. 8 is a view seen from the front of the vehicle, and FIG. 9. ~Figure 11 shows an enlarged view of the slide stopper, Figure 9 is a plan view seen from the direction of the arrow in Figure 8, Figure 10 is a side view, and Figure 11 is a view seen from the front of the vehicle. , Fig. 12 to Fig. 14 show the dust cover, Fig. 12 is a plan view, and Fig. 13 is a - of Fig. 12.
14 is a sectional view taken along the - line in FIG. 12, FIG. 15 is a plan view of the slide cover, and FIG. 16 shows the shift lever in its upright state and the shift lever with the stopper removed. FIG. 17 is a cross-sectional view for explaining the operation shown together with the folded state, and a schematic perspective view showing the interior of a cabin of a cab-over type vehicle employing the foldable shift lever device of the present invention. Explanation of symbols, 10...shift lever, 20...
Upper lever part, 21...Shift knob, 30...Lower lever part, 36...Control lever, 40
...Jointing means, 41...Bolt, 50...Torsion spring, 60...Lower bracket, 63
...Bolt, 70...Daytent plate, 73
...Detent groove, 73a...Detent groove end surface, 75...Parking range groove, 76...Bending guide groove, 77...Pin (rotation axis of slide stopper), 79...Circular groove, 80...Slide stopper Pa, 82...Knob mounting shaft, 87...Return spring, 89...Stopper release knob, 90
...Dust cover, 93...Day tent groove, 96
...Bending guide groove, 100...Slide cover, 110...Dust boot, X-X...Shift lever shift operation center axis of rotation, Y-Y...Control lever rotation center axis, Z-Z...Shift Lever bending rotation center axis, O-O... Slide stopper rotation center axis, D... Driver's side seat, E... Passenger side seat, F... Cab floor, S... Chassis frame cross member,
T...cabin, U...cabin rotation center, V...vehicle frame.

Claims (1)

[Scope of Claims] 1. Automatic transmission between the driver's seat and the passenger's seat of a tilt cab vehicle, which is mounted on a vehicle frame and whose cab is configured to be rotatable around a cab rotation center near the front end. The shift lever of the machine is arranged, and the shift lever is divided into two parts: an upper lever part on the shift knob side and a lower lever part on the transmission side,
In a folding shift lever device for an automatic transmission for a tilt cab vehicle, in which both lever parts are foldably connected by a joint means, the shift lever is attached so as to be left behind on the vehicle frame side when the cab is tilted;
A step-shaped detent groove is formed in the detent plate fixed to the fixed member, the upper lever part is pressed against one end surface of the detent groove by a spring, and the detent groove is continuous with the parking range groove. Along with forming a bending guide groove that extends to the passenger side,
A stopper that blocks the bending guide groove and prevents the upper lever portion from bending is attached to the detent plate, and the spring is fixed so that the upper lever portion temporarily stops at an intermediate position when the stopper is removed. A foldable shift lever device for an automatic transmission for a tilt cab vehicle, characterized by setting a spring force.