JPH0457526B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shift lever device for an automatic transmission used in a tilt cab vehicle. The present invention relates to a shift lever device of a floor shift type, mainly for trucks and the like, and particularly to a shift lever device of an automatic transmission for a tilt cab, which has improved sealing performance between the shift lever and the cab floor.

[Conventional technology]

In recent years, even in automobiles (mainly trucks) whose cabs are tiltably mounted on the vehicle frame,
A so-called floor shift type shift lever, in which the shift lever of an automatic transmission is disposed on the cab floor between the driver's seat and the passenger seat, has become popular. The gears of the automatic transmission are switched via a remote control link system (control cable, etc.) using a shift lever that stands upright from the cab floor inside the vehicle.

Additionally, rubber boots are installed between the shift lever and the cab floor (specifically, between the resin cover that covers the daytent plate and the bracket on the vehicle frame side, and between that bracket and the cab floor) to prevent dust from entering from the outside. This prevents dust, water, etc. from entering the shift lever assembly and the vehicle interior.

Incidentally, in a tilt cab vehicle, a cab mounted on a vehicle frame is generally configured to be rotatable about a rotation center of the cab near its front end. The remote control link system has also been devised to prevent the automatic transmission from being switched inadvertently when the cab is tilted.

However, the structure of the remote control link system that operates the automatic transmission in conjunction with the shift lever must be extremely complicated.

Therefore, it may be possible to mount the shift lever on a bracket fixed to the vehicle frame so that the shift lever is left behind when the cab is tilted.

[Problem that the invention seeks to solve]

In the shift lever device for the automatic transmission for tilt cabs described above, since the shift lever is attached to the vehicle frame side, the problem of the above-mentioned complicated remote control link system can be solved.

However, it is difficult to seal between the shift lever and the cab floor (between the resin cover and the bracket, and between the bracket and the cab floor).

Therefore, there is a concern that dirt, dust, water, etc. may enter the shift lever assembly or the vehicle interior from the outside.

It is also possible to make the rubber boots double-layered and attach them using adhesive, but this would worsen assembly and disassembly, as well as complicate the structure and increase manufacturing costs. There's a problem.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a shift lever device for an automatic transmission for a tilt cab, which has a simple structure to prevent dirt, dust, water, etc. from entering the shift lever assembly and the vehicle interior.

[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 the shift lever device for the automatic transmission for a tilt cab as described above, in which the lower end of the rubber boot is fixed to a bracket fixed to the vehicle frame side, and the outer circumferential surface of the upper end of the rubber boot is fixed to the bracket fixed to the vehicle frame side. It is characterized by fitting with a tightening margin to the inner circumferential surface of a resin cover screwed to the bracket side, and providing a weather strip type seal part in the middle part that can be brought into close contact with the cab floor. .

Specifically, as shown in FIG. 17, the tilt cab vehicle is configured such that a cab T is placed on a vehicle frame V and is rotatable about a cab rotation center U near the front end thereof as a fulcrum. and,
A shift lever 10 of an automatic transmission is arranged between a driver's seat D and a passenger seat E, as shown in FIG.

The shift lever 10 is supported on a bracket 60 fixed to the vehicle frame shown in FIG. 1, and is attached so that it is left behind when the cab T is tilted.

Furthermore, a lower end 112 of a rubber boot 110 is fixed to the bracket 60, as shown in FIG. The rubber boot 110 has an outer circumferential surface 113 at its upper end that is fitted with a tight fit to the inner circumferential surface 90c of the resin cover 90 screwed to the bracket side, and the intermediate portion thereof is tightly fitted to the cab floor F. A weather strip type seal portion 116 is provided.

[Effect]

According to the above-mentioned means, when the resin cover 90 is screwed to the bracket side as shown in FIG. Fit together.

As a result, the inside of the shift lever assembly includes the bracket 60, the resin cover 90, and the rubber boot 1.
10 and is sealed from the outside.

Further, a weather strip type seal portion 116 provided at the middle portion of the rubber boot 110 is in close contact with the cab floor F.

As a result, the interior of the vehicle is completely sealed by the rubber boot 110.

〔Example〕

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

1 to 16 show a shift lever device for an automatic transmission according to one embodiment of the present invention,
5 to 16 show the detent plate, slide stopper, resin cover, slide cover, and rubber boot, which are one of the component parts. FIG. 17 is a schematic side view of a tilt cab vehicle equipped with a shift lever device for an automatic transmission according to an embodiment of the present invention.
FIG. 8 is a schematic perspective view showing the interior of the tilt cab vehicle.

The shift lever device of the automatic transmission for a tilt cab according to this embodiment is configured such that the shift lever can be bent within a predetermined range, and by bending the shift lever so that it does not get in the way when moving the seat, the shift lever device for the automatic transmission for a tilt cab is configured so that the shift lever can be bent so as not to get in the way when moving the seat. This is applied to a foldable shift lever device that makes it easy to operate.

First, the general structure of the tilt cab vehicle will be explained. As shown in FIG. 17, the cab T is placed on the vehicle frame V and is configured to be rotatable about the cab rotation center U near the front end thereof as a fulcrum. . A chassis frame cross member S is fixed to the vehicle frame V, and a shift lever 10 of an automatic transmission is supported on a bracket (not shown) fixed to the cross member S. In this way, when the cab T is tilted as shown in the imaginary line in Fig. 17, the shift lever 1
0 is left behind on the vehicle frame V side. Note that W indicates a wheel.

The shift lever 10 is arranged between the driver's seat D and the passenger's seat E, as shown in FIG. Note that F indicates the cab floor and H indicates the steering wheel.

Next, as shown in FIGS. 1 to 4, the foldable shift lever device is roughly divided into a shift lever 10, a torsion spring 50 attached to the shift lever, a lower bracket 60 that supports the shift lever, and a shift lever. A day tent plate 70 that regulates the gear shift position, a slide stopper 80 that prevents bending of the shift lever, a resin cover 90 that covers the day tent mechanism, a slide cover 100 that displays the gear shift position, and a rubber boot 11.
It is composed of 0, etc.

In these figures, 10 indicates the entire shift lever, which is disposed substantially upright between the driver's seat and the passenger's seat. And shift lever 10
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 are bendably connected by a joint means 40.

That is, the lower end of the upper lever part 20 has a first
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. 1 and 3, 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 portion is concentrically arranged on the outer periphery of the bolt 41 via a collar 43 and a pair of resin flanged bushes 44, and the upper lever portion 20 is aligned with the axis Z- They are coupled to be rotatable about Z in the horizontal direction (vehicle width direction) in the paper of FIG.

Further, a torsion spring 50 is wound around the outer circumference of the pipe-shaped rotating shaft 22, and its protruding intermediate portion 51 is attached to the upper lever portion 20, and both bent end portions 52 are attached to the support 31 of the lower lever portion. It is locked. The spring force of the torsion spring 50 biases the upper lever portion 20 in the right direction in the paper of FIG. 3 (the direction in which the shift lever is bent).

Reference numeral 60 denotes a lower bracket, and together with a cable bracket 61 fastened to the lower surface thereof with a plurality of bolts and nuts, the vehicle frame V shown in FIG.
It is integrally fixed by a plurality of bolts and nuts to the chassis frame cross member S, which is fixed to the chassis frame cross member S. The lower bracket 60 supports the shift lever 10 rotatably in the longitudinal direction of the vehicle.

That is, as shown in FIG. 3, a shift lever retainer 62 having a pair of left and right upright portions 62a is welded to the upper surface of the lower bracket 60. A detent plate 70 that regulates the shift position of the shift lever 10 is arranged on the outside of the pair of upright parts 62a, and one bolt 63 passes through these holes through a spring washer. It is fastened with a nut 64. Further, the pipe-shaped rotating shaft 32 of the lower lever portion 30 is arranged concentrically on the outer periphery of the bolt 63 located inside the pair of upright portions 62a via a collar 65 and a pair of resin flanged bushes 66. ing. As a result, the shift lever 10 moves along the axis X-X of the bolt 63.
Centered on the left and right direction of the paper in Figure 1 (vehicle longitudinal direction)
is rotatably supported. shift lever 10
The shifting positions are parking range (P range), reverse range (R range), and
They are arranged in a line in seven positions: neutral range (N range), drive range (D range), third range (3 ranges), second range (2 ranges), 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. The lower bevel gear 34 that meshes with the fast bevel gear 33 is rotated by a nut 35 via a plate washer and a spring washer on a pin shaft 67 that fits into a hole in the horizontal base 62b of the shift lever retainer and is welded. It can be installed freely. A control lever 36 is welded to the lower bevel gear 34 and is rotatable about the axis YY of the pin shaft 67. 37 is a pair of 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, and the control cable is further moved in the longitudinal direction of the vehicle. The automatic transmission is configured to perform reciprocating motion to switch the automatic transmission to a predetermined gear position. Note that the dashed dot line C in FIGS. 1, 2, and 4 indicates the central axis of the control cable.

The detent plate 70 has a shape as shown in FIGS. 5 to 7, and has bolts 63 passing through holes 71 formed in a pair of side walls 70a in the vehicle width direction, and a wall 70c formed in the front of the vehicle. It is attached by a bolt 69 that passes through a hole 72 and is fastened to a nut 68 welded to the front upright portion 62c of the shift lever retainer shown in FIG.

The upper wall 70b of the detent plate 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 mounted thereon as shown in FIG. Shift lever that regulates shift position Direction of gear change operation (vehicle longitudinal direction)
A step-shaped detent groove 73 is formed that extends from the bottom to the bottom. The above-mentioned upper lever portion 20 is pressed against the end surface 73a of the detent groove on the passenger seat side by the spring force of the torsion spring 50. R range, N range, D range, on the end surface 73a of this detent groove 73.
At the 3rd range, 2nd range, and L range positions, arcuate grooves 73 _R , 73 _N corresponding to the outer peripheral surface of the upper lever portion 20 are provided in order to give a sense of moderation to the gear shifting operation of the shift lever 10 and prevent erroneous operation. ,73 _D ,7
3 ₃ , 73 ₂ and 73 _L are formed, respectively. In this way, the N range, D range and 3 range are obtained on the same plane, and the R range and 2 range are obtained at the position where the shift lever 10 is operated around the axis Z-Z toward the driver's seat (upper part of FIG. 2). Further, the P range and the L range can be obtained by similarly operating the shift lever 10 further toward the driver's seat side.

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 smaller than the outer diameter D ₁ of the upper lever portion 20 shown in FIG. 1, 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 direction of shift lever speed change operation, and its axis extending from its center line A extends in a direction passing through the axis XX. The front surface of the vehicle is made flush with the stepped portion _74P of the P range groove 75, and the rear surface of the vehicle is shaved so that the width _W3 of the intermediate portion is the outside of the upper lever portion 20 shown in FIG. It is set to be slightly larger than the diameter _D1 , and the width _W4 at the lower end thereof is set to be approximately the same dimension as the width _W2 of the P range groove 75.
In addition, the side wall 70 on the passenger side of the day tent plate
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 engaged) are attached to the inner circumferential edge near the axis X-X. It is press-fitted parallel to X and welded. Further, an arcuate groove 79 centered on the axis O-O of the pin 77 is formed on its outer peripheral edge to which a release knob of a slide stopper, which will be described later, is attached.

The rotation center axis 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. 8 to 10, 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 roughly L-shaped cross section. Slide stopper 8
A pipe-shaped rotating shaft 81, which is fitted into the pin 77, is welded to the lower end of the shaft. The outer circumferential surface 80d of the upper wall has a curved shape centered on the central axis (axis O-O) of the pipe-shaped rotating shaft 81, and the inner circumferential surface 70d of the upper wall of the detent plate has the curved shape. It is designed to slide along. Also, the side wall 80a of the slide stopper
, a knob mounting shaft 82 that fits into the arcuate 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- It is press-fitted parallel to O and welded. Furthermore, the front end surface (left end surface in FIG. 9) of the slide stopper 80 that comes into contact with the upper lever portion 20 when the shift lever is returned is operated.
is formed as an inclined surface 80c making an angle θ ₁ with respect to a plane B connecting the axis O-O and the front end surface of the upper wall 80b.

As shown in FIG. 3, this slide stopper 80 has a pipe-shaped rotating shaft 81 fitted into a pin 77 provided on the side wall 70a of the detent plate via a pair of resin flanged bushes 84. As a result, the pin 77 is rotatably supported around the axis OO. Furthermore, slide stopper 8
0 is held in the axial direction by a snap ring 86 fitted into an annular groove of the pin 77 via a spacer 85. The rotation angle of the slide stopper 80 is regulated within a certain range of angles by the abutting relationship between the knob mounting shaft 82 and the arcuate groove 79 of the detent plate.

Reference numeral 87 designates a return spring (torsion spring) for the slide stopper 80, the turned middle part of which is wound around the pipe-shaped rotating shaft 81, and both bent ends of which are connected to the pin 78 of the detent plate and the slide stop. It is locked to the pin 83 of the pad. The return spring 87 normally biases the slide stopper 80 in a direction to close the guide groove 76 so that the shift lever 10 does not fall down even when it is in the P range. That is, the slide stopper 80 is biased to the left in the paper of FIG. 1 (to the front of the vehicle), and the knob mounting shaft 8
2 is held in the position shown in FIG. 1 where it abuts the end of the arcuate groove 79 of the detent plate. thus,
Slide stopper 80 blocking guide groove 76
functions as a part of the detent plate 70 by preventing the shift lever 10 from being bent during normal operation. At the same time, the outer peripheral surface 8 of the slide stopper
0d along 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.

In addition, FIG. 3 is partially cut away at 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 resin cover 90 has a box shape that covers the detent mechanism described above, and as shown in FIGS.
6 and the circular arc groove 79, a detent groove 93 (P range groove 95), a guide groove 96, and a circular arc groove 99 (FIG. 4) are provided.

The upper wall 90b of the resin cover has a curved shape centered on the axis XX, similar to the detent plate 70, and a pair of parallel protrusions 91 along the curved shape are formed on the inner surface 90d. ing.
Both protrusions 91 serve as guides for the slide cover 100 that is inserted into the gap between the outer circumferential surface 70e of the upper wall of the detent plate and the inner circumferential surface 90d of the upper wall of the resin cover. This resin cover 90 is attached to the detent plate 70 with four screws 94 tightened into holes 92 formed in the left and right side walls 90a. Also,
A stopper release knob 8 made of resin is attached to the tip of the knob mounting shaft 82 that protrudes through the arcuate grooves 79 and 99.
9 is screwed. A plate washer 98 is fitted onto the knob mounting shaft 82 and interposed between the detent plate 70 and the resin cover 90.

Furthermore, the lower inner peripheral surface 90c of this resin cover
is formed as an inclined surface forming an angle θ ₂ (draft angle during injection molding) from the viewpoint of sealability and assemblability with the rubber boot 110 described later.

The slide cover 100 slides in conjunction with the shift lever 10 along the outer circumferential surface 70e of the upper wall of the detent plate and the inner circumferential surface 90d of the upper wall of the resin cover, and displays the gear shift position, and also displays the gear shift position and the guide It has the function of covering and sealing the groove 76. This slide cover 100 is made of a resin material and has a flexible, ultra-thin plate shape (for example, a plate thickness of about 0.8 mm). This slide cover 100 is fitted with the width across flats 23 of the upper lever portion, and has an opening on the end surface (lower surface in the figure) on the passenger seat side shown in FIG. 14 to allow bending of the upper lever portion 20. A cutout groove 101 is formed.

Now, as shown in FIG. 16, the rubber boot 110 has a lower end 112 in which a reinforcing metal plate 111 having an L-shaped cross section is embedded, and an inner circumferential surface 9 of a resin cover.
Upper end portion 1 having an outer circumferential surface 113 that fits into 0c
14, and an outer circumferential groove 11 formed in the middle part of the upper and lower ends.
5 and a weather strip type seal portion 116 that is fitted and attached to the weather strip.

The lower end portion 112 has a shape that follows the lower bracket 60, and its lower surface is a flat surface that makes surface contact with the upper surface of the lower bracket 60. Furthermore, three holes 117 are formed at the peripheral edge of the lower end portion 112 so as to penetrate through the reinforcing metal plate 11, as shown in FIG.

The outer peripheral surface 113 of the upper end portion 114 is an inclined surface forming an angle θ ₃ corresponding to the inner peripheral surface 90c of the resin cover. Further, the outer circumferential shape of the upper end outer circumferential surface 113 is set to be larger than the inner circumferential shape of the inner circumferential surface 90c of the resin cover, so that the two are tightly fitted with a predetermined tightening margin. It's summery.

The seal portion 116 includes a thick base portion that fits into the outer circumferential groove 115 of the intermediate portion and makes surface contact with the upper surface of the lower end portion 112, and a tongue portion with a bent cross section formed continuously on the outside of the base portion. It is equipped with Furthermore, the tongue comes into contact with a thin flange 118 formed in the intermediate portion, and its elastic force causes the flange 11 to
8 is pressed upward. The edge 119 of this tongue portion is brought into close contact with the cab floor F.

Then, the three holes 1 formed in the lower end 112
17 through the three screws 120 shown in FIG.
By fastening to the rubber boot 110
is attached to the lower bracket 60 in advance.

Next, cover the resin cover 90 from above,
Detent plate 70 using four screws 94
When fixed (screwed) to the rubber boots 110
The upper end outer circumferential surface 113 of the cover is pressed against the inner circumferential surface 90c of the resin cover and is tightly fitted. In this way, the lower bracket 60 and the resin cover 90 are completely sealed.

Furthermore, although FIG. 16 shows the rubber boot 110 in a free state, when it is actually mounted on a vehicle, the seal portion 116 is pushed down by the cab floor F, and the edge 119 of the seal portion is pressed down as shown in FIG. is in close contact with the lower surface of the cab floor F.
In this way, lower bracket 60 and cab floor F
The gap is completely sealed.

In the shift lever device for an automatic transmission configured as described above, the shift lever 10 is moved along the detent groove 73 of the detent plate along the axis Z.
- Operate around the Z axis and operate around the axis X-X. As a result, the pair of bevel gears 33, 3
4 to control the control lever 36 along the axis Y-Y.
By reciprocating a control cable (not shown) in the longitudinal direction of the vehicle, a manual valve lever of an automatic transmission (not shown) is actuated to shift to a predetermined gear position.

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 is moved clockwise (in the direction of arrow G) in FIG. 4 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, releasing the guide groove 76.

When the slide stopper 80 is released from the locked state, the torsion spring 50 is acting on the upper lever portion 20 in the direction of tilting it, so the slide stopper 80 naturally falls toward the passenger seat as soon as the slide stopper 80 completes its movement. , comes into contact with the lower end surface of the guide groove 76 and stops. 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 about the axis OO by the action of the return spring 87 and returns to the original state shown in FIG. 1 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 while the engine is running, the gap between the upper lever portion 20 and the guide groove 76 is small and is 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. 18, the shift lever 10 disposed between the driver's seat D and the passenger seat E is By folding the shift lever 10 toward the front, the shift lever 10 that is 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.

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 4)
direction) and release 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. 1 and 2. Therefore, from now on, the shift lever 10 is reliably held in its normal upright position by the slide stopper 80.

Now, the upper end outer peripheral surface 1 of the rubber boot 110
13 is tightly fitted to the inner circumferential surface 90c of the resin cover, so that the space between the lower bracket 60 and the resin cover 90 is completely sealed. On the other hand, since the weather strip type seal part 116 provided at the middle part of the rubber boot 110 is in close contact with the lower surface of the cab floor F, the space between the lower bracket 60 and the cab floor F is completely sealed.

Therefore, according to this embodiment, the interior and exterior of the shift lever assembly and the interior and exterior of the vehicle are isolated.
Dust from the outside inside the shift lever assembly or inside the vehicle.
It is possible to completely prevent dust, water, etc. from entering. Additionally, external noise can be blocked.

Furthermore, a resin cover 90 and rubber boots 110
By simply screwing and assembling the resin cover 90 to the detent plate 70, the two can be tightly fitted without using special fixing means such as adhesive or screws. Therefore, there is no need for fixing means such as adhesives or screws, making it easy to assemble.
Extremely good degradability.

Furthermore, since the rubber boot 110 is commonly used for sealing between the inside of the shift lever assembly and the outside, and between the inside of the vehicle and the outside, the structure can be extremely simple. Therefore, it is possible to significantly reduce manufacturing costs.

Although the present invention has been described in detail with respect to specific embodiments above, the present invention is not limited to the above embodiments, and includes various embodiments within the scope of the claims. For example, by pressing the push button provided on the shift knob of the shift lever, the detent rod is pushed down to release the engagement with the cam hole of the detent plate, and the shift lever can be used to change gears. Can be applied.

It is also possible to change the shape of the rubber boot.

〔Effect of the invention〕

As explained above, according to the present invention, the simple structure prevents dust from entering the shift lever assembly and the vehicle interior.
It is possible to prevent the intrusion of dust, water, etc. Also,
Can block outside noise.

Furthermore, between the resin cover and the rubber boot,
Since it was configured to simply fit with a tightening margin,
No special fixing means such as adhesives or screws are required.
Extremely easy to assemble and disassemble.

Moreover, since the rubber boot is used in common for the shift lever assembly and the outside, as well as for sealing between the vehicle interior and the outside, the structure can be extremely simple, and costs can be significantly reduced. It is.

[Brief explanation of the drawing]

1 to 16 show a shift lever device for an automatic transmission for a tilt cab according to an embodiment of the present invention, and FIG. 1 shows a state in which the shift lever is shifted to the parking range in the longitudinal direction of the vehicle. 2 is a plan view of FIG. 1, FIG. 3 is a sectional view taken along the - line of FIG. 1, FIG. 4 is a side view of FIG. 1, and FIG. The figure is an enlarged plan view of the detent plate viewed from the direction of arrow V in Figure 6, Figure 6 is a side view of Figure 5, Figure 7 is a view of Figure 6 seen from the front of the vehicle, and Figure 8 is a side view of Figure 6. An enlarged plan view of the slide stopper seen from the direction of the arrow in Figure 9, Figure 9 is a side view of Figure 8, Figure 10 is a view of Figure 9 viewed from the front of the vehicle, Figure 11 is a resin cover. 12 is a sectional view taken along the - line in Fig. 11, Fig. 13 is a sectional view taken along the - line in Fig. 11, Fig. 14 is a plan view of the slide cover, Fig. 15, and 16 shows a rubber boot, FIG. 15 is a plan view, FIG. 16 is a sectional view taken along the line - in FIG. 15, and FIG. 17 is an automatic according to an embodiment of the present invention. FIG. 18 is a schematic side view of a tilt cab vehicle equipped with a shift lever device for a transmission; FIG. be. Explanation of symbols, D... Driver's side seat, E... Passenger side seat, F... Cab floor, S... Chassis frame cross member, T... Cab, U...
...Cab rotation center, V...Vehicle frame, 10...
...Shift lever, 60...Lower bracket, 70
...Detent plate, 90...Resin cover, 90c...Inner peripheral surface of resin cover, 94...
Screw, 110...Rubber boot, 111...Reinforcement metal plate, 112...Lower end, 113...
Upper end outer peripheral surface, 114... Upper end, 115...
...Outer circumferential groove, 116... Weather strip type seal part.

Claims (1)

[Scope of Claims] 1. A tilt cab vehicle in which a cab is placed on a vehicle frame and is configured to be rotatable about a rotation center of the cab near its front end as a fulcrum. In a shift lever device for an automatic transmission for a tilt cab, which includes a shift lever of a transmission, the shift lever is supported on a bracket fixed to the vehicle frame side, and is left behind on the vehicle frame side when the cab is tilted. Further, the lower end of a rubber boot is fixed to the bracket, and the outer peripheral surface of the upper end of the rubber boot is attached to the inner peripheral surface of a resin cover that is screwed to the bracket side. 1. A shift lever device for an automatic transmission for a tilt cab, characterized in that the shift lever device is fitted with an interference margin and is provided with a weather strip type seal portion in the middle portion thereof that can be brought into close contact with the floor of the cab.