JPS6316313A - Shift lever device of automatic transmission for tilt cab - Google Patents

Abstract

PURPOSE:To prevent mixture of the dust,water, etc. into a shift lever assembly or a car room with a shift lever device of an automatic transmission for tilt cab, by setting a resin cover to a rubber boot with an interference secured. CONSTITUTION:A tilt cab car contains a cab T put on a car frame V and also can turn with the cab rotational center U near the front end part of the frame V defined as a fulcrum. A shift lever 10 is supported on a bracket 60 fixed at the side of the frame V and kept at the frame side when the cab T is tilted. Furthermore the lower end part 112 of a rubber boot 110 is fixed to the bracket 60. The boot 110 is fitted with an interference to the inner circumferential surface 90c of a resin cover 90 which is fixed at the side of the bracket 60 via its outer circumferential surface 113 formed at the upper end part. In addition, a weather strip type seal part 116 that can be adhered to a cab floor F is provided at the intermediate part of the cover 90.

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, and more particularly 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 for vehicles such as trucks (mainly trucks), and particularly to a shift lever device for an automatic transmission for a tilt cab that 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, so-called floor shift systems have been introduced, in which the shift lever of the automatic transmission is placed on the cab floor between the driver's seat and the passenger's seat. Shift levers have become popular. A shift lever that stands upright from the cab floor inside the vehicle is used to switch gears of the automatic transmission via a remote control link system (control cable, etc.).

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

By the way, in the tilt cab vehicle shown in FIG. 1, the cab mounted on the vehicle frame is configured to be rotatable about the cab rotation center near the front end thereof as a fulcrum. 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 on the vehicle frame when the cab is tilted.

[Problem that the invention seeks to solve]

In the shift lever device of 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 fear 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 poses problems such as poor assembly and disassembly, as well as complicating the structure and increasing manufacturing costs. be.

Therefore, the purpose of the present invention is to prevent dirt, dust, water, etc. from entering the shift lever assembly and the vehicle interior with a simple structure in the shift lever device of the above-mentioned automatic transmission for a tilt cab.

[Means for solving problems]

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

In other words, the present invention provides a shift lever device for an automatic transmission for a tilt cab as described above, in which a lower end of a rubber boot is fixed to a bracket fixed to a vehicle frame side, and an outer periphery of an upper end of the rubber boot is fixed to a bracket fixed to a vehicle frame side. It is characterized by a weather strip type seal part that fits with a tightness on the inner circumferential surface of a resin cover whose surface is screwed to the bracket side, and which can be placed in close contact with the cab floor in the middle part. shall be.

Specifically, as shown in Fig. 17, the tilt cab vehicle is
A cab (T) is placed on a vehicle frame (V) and is configured to be rotatable about a cab rotation center (U) near its front end as a fulcrum. Then, the shift lever (10) of the automatic transmission is moved to the driver's seat (D) as shown in Figure 18.
and the front passenger seat (E).

The shift lever (10) is supported on a bracket (60) fixed to the vehicle frame shown in FIG. 1, and is attached so as to be left behind on the vehicle frame 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 the upper end fitted with an inner circumferential surface (90c) of a resin cover (90) screwed to the bracket side, and In the middle part is a weather strip type seal part (116) that can be brought into close contact with the cab floor (F).
) is provided.

[Function] According to the above-mentioned means, the resin cover (
90) is screwed to the bracket side, the outer peripheral surface (113) of the upper end of the rubber boot (110) tightly fits into the inner peripheral surface (90c) of the resin cover (90).

As a result, the inside of the shift lever assembly has a bracket (
60), resin cover (90) and rubber boots (110)
) and 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, in which FIGS. 5 to 16 show a detent plate and a slide stopper, which are one of the component parts. , a resin cover, a slide cover and a rubber boot, respectively. 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 as not to get in the way when moving the seat, the shift lever device can easily change the seat. This is a device commonly used in foldable shift lever devices that facilitates shifting.

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. . This vehicle frame
A chassis-frame cross member S is fixed thereto, and a shift lever 10 of an automatic transmission is supported on a bracket (not shown) fixed on the cross member S. In this way, when the cab T is tilted as shown by the imaginary line in FIG. 17, the shift lever 10 is left behind on the side of the vehicle frame v. 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 handle.

Next, the foldable shift lever device is roughly divided into a shift lever 10, a torsion spring 50 attached to the shift lever, and a shift lever as shown in FIGS. 1 to 4.
a lower bracket 60 that supports the shift lever, a detent plate 70 that regulates the shift position of the shift lever, a slide stopper 80 that prevents the shift lever from bending, a resin cover 90 that covers the detent mechanism, a slide cover 100 that displays the shift position, and a rubber It is composed of boots 110 and the like.

In these figures, 10 indicates the entire shift lever, which is disposed substantially upright between the driver's seat and the passenger seat. The shift lever 10 has an upper lever part 20 on the shift knob 21 side and a lower lever part 30 on the transmission side.
It is divided into two parts, and both parts are bently connected by a joint means 40.

That is, a pipe-shaped rotating shaft 22 is welded to the lower end of the upper lever portion 20, as shown in FIG. On the other hand, the lower lever portion 30 is composed 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 napht 42 via a spring washer. A pipe-shaped rotating shaft 22 of a portion of the upper lever 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 of the bolt 41. 2-2, and is rotatably coupled 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 is connected to the upper lever portion 20, and both bent end portions 5
2 are respectively locked to supports 31 that are part of the lower lever. 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.

Reference numeral 60 denotes a lower bracket, and the chassis is fixed to the vehicle frame V shown in FIG. 17 together with a cable bracket 61 fastened to the lower surface of the lower bracket with a plurality of bolts and nuts.
It is integrally fixed to the frame cross member S by a plurality of bolts and nuts. The lower bracket 60 supports the shift lever 10 rotatably in the longitudinal direction of the vehicle.

That is, 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, as shown in FIG. And a pair of upright parts 6
A detent plate 70 that regulates the shift position of the shift lever 10 is arranged on the outside of the shift lever 2a, and a bolt 63 passes through these holes and is fastened with a nut 64 via a spring washer. . Further, on the outer periphery of the bolt 63 located inside the pair of upright portions 62a,
The pipe-shaped rotating shaft 32 of the lower lever part 30 is arranged concentrically via a collar 65 and a pair of resin flanged bushes 66. As a result, the shift lever 10 is moved in the left-right direction (
It is rotatably supported in the longitudinal direction of the vehicle. 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, an upper bevel gear 3 is attached to the pipe-shaped rotating shaft 32.
3 is fixed by means such as welding, caulking, press-fitting, etc.

A lower bevel gear 34 that engages with the upper bevel gear 33 is rotatably mounted 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. There is. A control lever 36 is welded to the lower bevel gear 34, and a pin shaft 67
It is possible to rotate around the axis Y-Y. 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 bush (not shown).

As a result, the rotational movement of the shift lever 10 around the axis X-X is converted into the rotational movement around the axis Y-Y of the control lever 36 by the pair of bevel gears 33 and 34, and the control cable is further reciprocated in the longitudinal direction of the vehicle. The automatic transmission is configured to be operated to switch the automatic transmission to a predetermined gear position. In addition, Fig. 1, Fig. 2, and Fig. 4
A dashed-dotted line C in the figure 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 holes 70 formed in a wall 70C in front of the vehicle. It is attached by a bolt 69 that passes through the hole 72 and is fastened to a napft 68 welded to the front upright portion 62c of the shift lever retainer shown in FIG.

The earth wall 70b of the detent plate has a curved shape centered on the central axis (axis x-x) of a pair of holes 71, and the upper wall 70a has a shift lever for the shift lever 10 as shown in FIG. A step-shaped detent groove 73 extending in the gear shift operation direction (vehicle longitudinal direction) that regulates the position of the shift lever is formed.The upper lever part 20 is torsioned on the passenger side end surface 73a of the detent groove. It is pressed by the spring force of the spring 50.The R range, N range, D range, 3 range, 2 range, and L range positions on the end surface 73a of this detent groove 73 are used for gear change operation of the shift lever 10. In order to provide a sense of moderation and prevent erroneous operation, an arc-shaped groove 73 * 7 is provided corresponding to the outer peripheral surface of the upper lever part 20.
3N, 73D, 733, 73□ and 73L 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 can be obtained by doing.

Moreover, the detent in the upper lever part 20)? #7
Each step 74. of the detent groove is in contact with the detent groove 74.
・74. A parallel width across flats 23 is formed that abuts on I/74N-743/74□ and 74t to accurately set the shift operation position thereof. And detent groove 7
3, the width W2 of the P range groove 75 is smaller than the outer diameter DI of the upper lever part 20 shown in FIG.
It is set slightly larger than the width W1 between 3 and 3.

Furthermore, the detent plate 70 has its P range groove 7.
5, the bending guide groove 78 extends to the passenger seat side.
(hereinafter referred to as guide groove 76) 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. Then, the surface in front of the vehicle is
Range groove 750 stepped portion 74. The rear surface of the vehicle is shaved so that the width W3 at the middle part is slightly thicker than the outer diameter of the upper lever part 20 shown in FIG. The width W of the section is the width W2 of the P range clear 75.
The dimensions are set to be approximately the same.

Further, on the side wall 70a of the detent plate on the passenger seat side, a pin 77 forming a rotating shaft of a slide stopper (to be described later) and one end of a return spring of the slide stopper (to be described later) are locked to the inner peripheral edge near the axis XX. pin 78
are press-fitted and welded parallel to the axis XX. Further, the axis 0-O of the pin 77, to which a slide stopper release knob to be described later is attached, is attached to the outer peripheral edge of the pin 77.
An arcuate groove 79 centered at is formed.

A pin 77 forms the rotation axis of the slide stopper.
The rotation center axis UO-O is located on the axis connecting the speed change operation rotation center axis XX of the shift lever 10 and the center line A of the guide groove 76.

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 abuts the upper lever part 20. It has a disconnected circuit shape.

A pipe-shaped rotating shaft 81, which is fitted onto the pin 77, is welded to the lower end of the slide stopper 80. The outer circumferential surface 80d of the upper wall has a curved shape centered on the central axis (axis 0-0) of the pipe-shaped rotating shaft 81,
The inner circumferential surface 7 of the earthen wall of the detent plate having the curved shape
It will now slide along 0d. Further, the side wall 80a of the slide stopper has a knob mounting shaft 82 on its outer peripheral edge that fits into the circular arc groove 79 of the detent plate, and a pin 83 on its inner peripheral edge to which one end of a return spring to be described later is locked. , are press-fitted and welded parallel to the axis X0-O, respectively. Furthermore, the shift lever
The front end surface (the left end surface in FIG. 9) of the slide stopper 80 that comes into contact with the upper lever portion 20 during the return operation forms an angle θ1 with respect to the plane B connecting the axis 0-O and the front end surface of the upper wall 80b. It is formed as an inclined surface 80c.

As shown in FIG.
By fitting the pin 77 provided at Oa through a pair of resin flanged bushes 84, the axis O of the pin 77 is adjusted.
It is rotatably supported around −0. Further, the slide stopper 80 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 determined between the knob mounting shaft 82 and the arcuate groove 7 of the detent plate.
The angle is restricted to a certain range by the contact relationship with 9.

87 is a return spring (
The pivoted middle part is wound around the pipe-shaped rotating shaft 81, and both bent ends are respectively locked to the pin 78 of the detent plate and the pin 83 of the slide stopper. This 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 is held in the position shown in FIG. 1, where the knob mounting shaft 82 is in contact with the end of the arcuate groove 79 of the detent plate. do. 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 peripheral surface 80d of the slide stopper is aligned with the inner peripheral surface 70d of the detent plate to close the guide groove 76 to ensure sealing performance.

88 is fitted to the knob mounting shaft 82 and is attached to the detent plate 7.
0 and the slide stopper 80.

In addition, in order to easily understand the mounting relationship of the slide stopper 80 and the stopper release knob, FIG. 3 shows the knob mounting shaft 8.
The figure is partially cut away along a plane including 2.

The resin cover 90 has a box shape that covers the detent mechanism described above, and as shown in FIGS. A detent groove 93 (P range groove 95), a guide groove 96, and an arcuate groove 99 (FIG. 4) having similar shapes corresponding to 79 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,
A pair of parallel protrusions 91 along a curved shape are formed on the inner surface 90d.

Both protrusions 91 include an outer circumferential surface 70e of the upper wall of the detent plate and an inner circumferential surface 90d of the clay wall of the resin cover.
It serves as a guide for the slide cover 100 that is inserted in the gap between. 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, an arc! A resin-made bar release knob 89 is attached to the tip of the knob mounting shaft 82 that protrudes through holes 79 and 99.
is screwed on. 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 circumferential surface 90C of this resin cover is formed as an inclined surface (draft angle during injection molding) forming an angle θ2 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 in addition to displaying the shift position, the guide groove 76
It has the function of covering and sealing. This slide cover 100 is made of a resin material and has a flexible, ultra-thin plate shape (eg, plate thickness Q, about 3 SS). This slide cover 100 fits into the width across flats 23 of the part of the upper lever, and in order to allow the part 20 of the upper lever to be bent, the slide cover 100 is attached to the end face (lower face in the figure) on the passenger seat side shown in FIG. An open cutout groove 101 is formed.

Now, the rubber boot 110 is constructed as shown in FIG.
12, an upper end portion 114 having an outer circumferential surface 113 that fits into the inner circumferential surface 90C of the resin cover, and a weather strip type that is attached by fitting into an outer circumferential groove 115 formed in the middle of the upper and lower ends. It is composed of a seal portion 116.

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 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 θ3 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 fit closely together with a predetermined interference. It has become.

The seal portion 116 includes a thick base portion that fits into the outer peripheral groove 115 of the intermediate portion and makes surface contact with the upper surface of the lower end portion 112;
A tongue portion having a curved cross section is formed continuously on the outside of the base portion. Further, the tongue portion contacts a thin flange portion 118 formed at the intermediate portion, and presses the flange portion 118 upward with its elastic force. The tongue 7 119 is brought into close contact with the cab floor F.

Then, insert the three screws 120 shown in FIG.
The rubber boot 110 is attached to the lower bracket 60 in advance by fastening it to the napht 121 (FIG. 4) welded to the
can be attached to.

Next, when the resin cover 90 is put on from above and fixed (screwed) to the detent brake (detent brake) 70 using four screws 94, the outer peripheral surface 11 of the upper end of the rubber boot 110
3 is pressed against the inner circumferential surface 90C of the resin cover and is tightly fitted. In this way, the space between the lower bracket 60 and the resin cover 90 is 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 of the seal portion is pushed down as shown in FIG. 119 is cab floor F
in close contact with the bottom surface of

In this way, the space between the lower bracket 60 and the cab 7071 is completely sealed.

In the 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, and also around the axis XX. As a result, the control lever 36 is
The manual valve lever of the automatic transmission (not shown) is actuated by rotating the control cable (not shown) around the axis Y-Y and reciprocating the control cable (not shown) in the longitudinal direction of the vehicle to switch to a predetermined gear.

At shift positions other than the P range, the upper lever portion 20 and the guide groove 76 formed in the detent plate do not match, and the shift lever 1O cannot be bent. 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, preventing it from being bent. thwarted. At this time, the load applied by the torsion spring 50 in the direction of tilting the upper lever portion 20 is received by the detent plate 70 mainly through the plate washer 88 fitted to the knob mounting shaft 82.

When bending and tilting the shift lever 10, the operation is as follows.

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

Next, move the stopper release knob 89 to the return spring 87.
4 along the arcuate groove 79 in the clockwise direction of arrow G in FIG. Then, slide stopper 8
0 also rotates around the axis 0-O at the same time, releasing the guide groove 76.

When the slide stopper 80 is unlocked, the torsion spring 50 is acting on the upper lever portion 20, so that it naturally falls to the passenger side as soon as the slide stopper 80 completes its movement, and the guide Groove 76
It stops when it comes into contact with the lower end surface of. In addition, this shift lever
When tilting down, the outer diameter D1 portion of the upper lever portion 20 passes through the Seifuku W3 portion of the guide groove 76, and then the width across flats 23 of the upper lever portion passes through the groove Ill! of the guide groove 76. w, engages the part. Therefore, even when the shift lever is in the tilted state, the upper lever portion 20 remains in the guide groove 76 with a slight gap.
It will be kept within.

When the upper lever portion 20 falls, the slide stopper 80 rotates around the shaft 11o-o by the action of the return spring 87 and returns to the original state shown in FIG. i1 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 the upper lever part 20 is further biased by the return spring 87 of the slide stopper. 20 is reliably held, making it highly safe.

In addition, even if the shift lever is tilted down with the engine running, the gap between the upper lever part 20 and the gear shifter 76 is small and is biased by the return spring 87, so there will be a rattling noise between the two. is 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's seat, or from the passenger's seat to the driver's seat.

In particular, in a cab-over type vehicle as shown in FIG. By folding the shift lever 10 toward the front, 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.

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 rotates around the axis 0-O by the inclined surface 80c (in the direction of arrow G in FIG. 4), thereby releasing the guide groove 76. Then, at the same time as the upper lever part 20 passes, the return spring 87
0 action 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 1O is reliably held in its normal upright position by the slide stopper 80.

Now, since the outer circumferential surface 113 of the upper end of the rubber boot 110 is tightly fitted to the inner circumferential surface 90c of the resin cover, 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 in the middle part of the rubber boot 110 is in close contact with the lower surface of the cab floor F, the lower bracket 6
0 and the cab floor F are 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, completely preventing dirt, dust, water, etc. from entering the shift lever assembly or the interior of the vehicle from the outside. be able to. Additionally, external noise can be blocked.

Furthermore, no special fixing means such as adhesive or screws should be used between the resin cover 90 and the rubber boots 110.
By simply screwing and assembling the resin cover 90 to the detent plate 70, the two can be tightly fitted. Therefore, it does not require any fixing means such as adhesives or screws, and is extremely easy to assemble and disassemble.

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

The present invention has been described in detail with respect to specific embodiments, but
The present invention is not limited to the above embodiments, but includes various embodiments within the scope of the claims. The present invention can also be applied to a type of shift lever in which the detent loft is pushed down to release the detent plate from the cam hole and the shift lever is operated to change gears by pressing the detent loft.

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

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to prevent dirt, dust, water, etc. from entering the shift lever assembly and the vehicle interior with a simple structure. Additionally, external noise can be blocked.

Furthermore, since the resin cover and the rubber boot are simply fitted with a tightening margin, there is no need for special fixing means such as adhesives or screws, and ease of assembly and disassembly is achieved. is extremely good.

Furthermore, 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, resulting in a very simple structure and a significant cost reduction. It is.

[Brief explanation of the drawing]

1 to 16 show a shift lever device of an automatic transmission for a tilt cab according to an embodiment of the present invention. 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 cross-sectional view taken along line mm in FIG. 1, and FIG. 4 is a side view of FIG. 1. Figure 5 is an enlarged plan view of the detent plate seen from the arrow ■ direction in Figure 6, Figure 6 is a side view of Figure 5, Figure 7 is a view of Figure 6 viewed from the front of the vehicle, and Figure 8. is an enlarged plan view of the slide stop collar seen from the arrow ■ direction 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 Fig. 12 is a sectional view taken along xn-xnwA in Fig. 11, Fig. 13 is a sectional view taken along xm-xm line in Fig. 11, Fig. 14 is a plan view of the slide cover. , Fig. 15 and Fig. 16 show a rubber boot, Fig. 15 is a plan view, Fig. 16 is a sectional view taken along the line XVI-XVI in Fig. 15, and Fig. 17 is a rubber boot according to the present invention. A schematic side view of a tilt cab vehicle equipped with a shift lever device for an automatic transmission according to one embodiment of the present invention; FIG. 18 is a diagram of a tilt cab vehicle equipped with a shift lever device for an automatic transmission according to an embodiment of the present invention; FIG. 3 is a schematic perspective view showing the interior of the room. Explanation of symbols D-----Driver's side seat E-----Passenger's side seat F----
−−〜−=−Cab floor S−・−−1−−−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 circumference of resin cover Surface 94 --- Screws 110 --- Rubber boots 111 --- Reinforcement metal plate 112 --- Lower end 113 --- Upper end outer peripheral surface 114 --- -1----Upper end 115--Outer circumferential groove 116--111-Weather strip type seal portion 5 Fig. 7 Fig. 8 3181 Fig. 14, io. Figure 17 T Ki Island Bushi Cab rotation center ν Vehicle frame IO-/F1-Lever 18th country D Driver's seat and Corinthus E-Passenger treasure side 1-to-F Moofuf: Te10/Filehar

Claims (1)

[Claims] (1), the cab is placed on the vehicle frame, and
A shift lever device for an automatic transmission for a tilt cab, in which the shift lever of the automatic transmission is arranged between the driver's seat and the passenger seat of a tilt cab vehicle configured to be rotatable around the center of rotation of the cab near its front end. In the above, the shift lever is supported on a bracket fixed to the vehicle frame side and is attached so as to be left behind on the vehicle frame side when the cab is tilted, and further, a lower end of a rubber boot is fixed to the bracket. The outer circumferential surface of the upper end of the rubber boot is fitted with a tightening margin to the inner circumferential surface of a resin cover which is screwed to the bracket side, and the intermediate part thereof is fitted with a screw to the floor of the cab. A shift lever device for an automatic transmission for a tilt cab, characterized by being provided with a weather strip type seal portion that can be brought into close contact with each other.