JPS62245420A - Collapsible shift lever device for automatic transmission for tilt cab vehicle - Google Patents

Abstract

PURPOSE:To prevent the floor of a cab, or a shift lever from being damaged even when the cab is tilted erroneously in the turned down state of the shift lever, by mounting the shift lever so as to be left behind at a vehicle frame side at the tilting time of the cab, and constituting an upper lever part so that it is pressed on one end face of a detent groove by a spring. CONSTITUTION:A shift lever 10 is mounted so as to be left behind at a vehicle frame V side at the titling time of a cab T. A step shaped detent groove 73 is formed at a detent plane 70 fixed at a fixed member, and an upper lever part 20 is pressed on one end face 73a of the detent groove by a spring 50. Even when the cab T is tilted erroneously in a state that the upper lever part 20 is being tuned down, the upper lever part 20 can be raised smoothly by the floor F of the cab because no spring force is acted on the lever part to a position on the way (continuous line position II), and also, the position on the way is inclined, and it is restored to its original standing upright state automatically.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a tiltable shift lever device for an automatic transmission for a tilt cab vehicle, and more particularly to a tiltable shift lever device for an automatic transmission for a tilt cab vehicle. (mainly trucks)
This invention relates to a foldable shift lever '2Z for an automatic transmission for a tilt cab vehicle, which is configured such that the floor shift type shift lever can be bent at a predetermined position.

(Prior 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 the driver's seat and the 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 link system (control cable, etc.).

In cars equipped with this floor shift type shift lever, the driver often gets on and off from the passenger seat in places where parking spaces are narrow or in areas with heavy traffic. When moving from the passenger seat to the driver's seat, the shift lever that stands upright from the vehicle floor becomes a protrusion that gets in the way, making it difficult to move from the passenger seat to the driver's seat.

For automatic transmissions, the shift lever conventionally installed on the vehicle floor is divided into upper and lower parts, and the two parts are connected with a pin to make the shift lever bendable, making it easier to change seats. A foldable shift lever device (for example, Japanese Utility Model Publication No. 56-32887) has been proposed.

However, in the conventionally proposed foldable shift lever device for automatic transmissions, when the seat is moved, the shift lever is moved in the direction of gear change operation (vehicle longitudinal direction).
It is designed to be folded down and folded down. Moreover, no means has been taken to equally restrict the bending operation position of the shift lever.

Therefore, 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.

In addition, if the shift lever is bent toward the rear of the vehicle and laid down, it tends to interfere with the parking brake lever, the shift lever cannot be tilted down to a sufficiently low position, and the shift lever tends to get in the way. In such cases, the folded portion may be exposed and form a protrusion, and clothing may be caught on the folded portion when the seat is moved inside the vehicle.

Moreover, if you bend the shift lever in the neutral position with the engine running while the vehicle 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 the drive range. There are concerns that there is a risk of the shift.

Furthermore, due to its bending structure, the upper lever part on the shift knob side is pushed down along the 5-shaped groove formed in the lower lever part partially against the spring, and then the upper lever part is moved around the axis while in this state. It is designed to be rotated, pulled up by a spring, and then folded down by bending the upper lever part.

Therefore, since the shift lever is located below the side of the driver's seat, there is a problem in that it is difficult to bend the shift lever in a normal driving position.

Therefore, the present applicant first created a bending guide groove in a cover that is fixed to the vehicle floor side and covers the bending part of the shift lever, which allows the upper lever part to be bent in one direction substantially perpendicular to the direction of shift operation only in the parking range. of,
We proposed a foldable shift lever device for automatic transmissions that is visually exposed to the outside (Utility Application No. 60-09138)
No. 5).

In this foldable shift lever device for automatic transmission,
The folded shift lever does not get in the way when moving the seat.
It is extremely easy to move a seat in a vehicle, and even if a part of the body accidentally touches a shift lever when moving the seat, the transmission will not be activated inadvertently, making it safe. Also,
Excellent performance was obtained, including good shift lever bending operability.

[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. A remote control link system has been devised to prevent the automatic transmission from being switched inadvertently when the cab is tilted, but the structure is extremely complex.

Therefore, it is conceivable to attach the shift lever to the vehicle frame side. And the above-mentioned prior application structure (example)
When using the foldable shift lever device for automatic transmissions shown in , if the cab is tilted with the upper lever section tilted toward the passenger seat, which is perpendicular to the direction of shift lever gearshift operation, the spring There is a risk that the cab floor will come into contact with the shift lever that has been laid down horizontally, causing deformation of the cab floor and damage to the shift lever.

Although it is possible to use a caution plate to warn 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.

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 in the tilted position, the floor of the cab and the shift lever can be easily removed. The purpose is to prevent damage to the product.

[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 above-mentioned foldable shift lever device for an automatic transmission for a tilt cab vehicle, in which the shift lever is mounted so as to be left behind on the vehicle frame side when the cab is tilted, and the upper lever portion is formed in a step-shaped detent plate. The structure uses the spring force of the spring that presses 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 will temporarily move halfway. It is characterized in that the spring force of the spring is set so as to stop at the position.

Specifically, taking FIGS. 1, 16, and 17 as examples, a tilt cab vehicle has its 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.

The shift lever (10) is located between the driver's seat and the passenger seat, and the upper lever part (21) on the shift knob (21) side
20) and a lower lever part (30) on the transmission side, both lever parts (20, 30) are connected to the coupling means (40).
) are foldably connected.

The shift lever (10) is attached so as to be left behind on the vehicle frame (V) side when the cab (T) is tilted. detent plate fixed to a fixed member)
A stepped detent groove (73) is formed in the (70), and one end surface (73a) of the detent groove is formed in the (70).
) is pressed against the upper lever part (20) by a spring (50).

Furthermore, the parking range groove (
A bending guide groove (76) extending to the passenger seat side is formed continuously from the bending guide groove (75), and a stopper (80) that blocks the bending guide groove (76) is a detent play) (7
0) is attached to °ζ.

Moreover, the spring force of the spring (50) is such that when the stopper (80) is removed, the upper lever part (20) is at a position i! ! It is set to stop at '(solid line ■ position).

[For production]

According to the above-mentioned means, in a shift position other than the parking range, the upper lever part (
20) 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 the bendable position. However, the stopper (80) prevents the upper lever portion (20) from bending.

Therefore, when the stopper (80) is removed, the upper lever part (20) falls toward the passenger seat along the bending guide groove (76) by the spring force of the spring (50). On this occasion,
By adjusting the spring force of the spring (50), the upper lever part (20) does not fall down all at once to the position (the imaginary line ■ position in Figure 16), It stops at the position (solid line ■ position in Figure 16). Thereafter, push down the upper lever part (20) by hand until it reaches a predetermined position (imaginary line m i1! in FIG. 16).

With this shift lever (IO) tilted toward the passenger seat side (dashed line a in Figure 17), the driver's seat can be moved, that is, from the driver's seat to the passenger seat, or from the passenger seat to the driver's seat. is extremely easy to perform.

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

In the unlikely event that the upper lever part (2
Even if the cab (T) is tilted by mistake while the upper lever part (20) is tilted down, no spring force is applied to the upper lever part (20) until it reaches the halfway position (solid line ■ position in Figure 16), and This midway position is slanted, so the floor of the cab (F
) and automatically return 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. 15 show a detent plate, a slide stopper, a dust cover, and a slide cover, which are one of the component parts, 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, a lower bracket 60 that supports the shift lever 10, a detent plate 70 that regulates the shift position of the shift lever 1O, and a shift lever 10. -10, a dust cover 90 that covers the detent mechanism, a slide cover 100 that displays the gear shift position, a dust boot 110, and the like.

In these figures, 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 is divided into two parts: an upper lever part 20 on the side of the shift knob 21 and a lower lever part 30 on the side of the transmission, both of which are foldably connected by a coupling 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 1-31 and a pipe-shaped rotating shaft 32, as shown in FIGS. 3 and 4, and both are integrated by welding.

Then, one bolt 41 passes through a hole formed in the support 31 and is attached to a nut 42 via a spring washer.
It has been concluded by A pipe-shaped rotating shaft 22 of a part of the upper lever L is arranged concentrically on the outer periphery of the bolt 41 via a collar 43 and a pair of resin flanged bushes 44, and the upper lever part 20 is connected to the )41 axis 2-
．． 2 in the left-right direction (vehicle width direction) in FIG. 4.

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 22, respectively.
0 and the support 31 of the lower lever part.

The spring force of this torsion spring 50 causes the upper lever portion 20 to move toward the right in the paper of FIG.
(bending direction).

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 intermediate position shown in the figure.

Reference numeral 60 designates a lower bracket, and together with a cable bracket 61 fastened to the lower surface of the lower bracket with a plurality of bolts and nuts, the chassis is fixed to the vehicle frame V shown in FIG.
It is integrally fixed to the frame cross member S by a plurality of bolts and nuts. The lower bracket 0 supports the shift lever 10 rotatably in the longitudinal direction of the vehicle.

That is, as shown in FIG. 4, a shift lever retainer 62 having a pair of left and right upright portions 62a is integrally fixed to the upper surface of the lower bracket 60 by welding. A detent plate 7 for regulating the shift position of the shift lever 10 is provided on the outside of the pair of upright portions 62a, 62a.
0 are arranged, and one bolt 63 is passed through these holes and fastened with a nut 64 via a spring washer. Further, the pipe-shaped rotating shaft 32 of the lower lever portion 30 is concentrically attached to the outer periphery of the bolt 63 located inside the pair of upright portions 62a, 62a via a collar 65 and a pair of resin flanged bushes 66, 66. It is arranged in a shape. As a result, the shift lever 10 is rotatably supported in the left-right direction (vehicle longitudinal direction) in the plane of FIG. 3 about the axis X--x of the bolt 63. The shift position of the shift lever 10 is from the front of the vehicle to the parking range (P
range), reverse range (R range), neutral range (N range), drive range (D range), third range (3 range), second range (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.

The lower bevel gear 34 that meshes with the upper bevel gear 33 is connected to the horizontal base 62b of the shift lever retainer 62.
The pin shaft 67 is rotatably mounted by a nut 35 via a plate washer and a spring washer on a pin shaft 67 which is fitted into a hole and welded. Lower bevel gear 34
A control lever 36 is welded to and is rotatable about the axis Y-Y of the pin shaft 67. 37
- 37 is a resin flanged bushing 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. Note that the dashed dotted line C in FIGS. 2, 3, and 5 indicates the central axis of the control cable.

The detent plate 70 has a pair of holes 7° formed in the side walls 70a and 70a in the vehicle width direction as shown in FIGS. 6 to 8.
1.71, and a bolt 69 that passes through a hole 72 formed in the vehicle front wall 70c and is fastened to a nut 68 welded to the front upright portion 62c of the shift lever retainer 62 shown in FIG. installed by.

The earth wall 70b of the detent plate 70 has a pair of holes 71.
As shown in FIG. 6, the upper wall 70a of the shift lever 1O has a curved shape centered on the central axis (axis A step-shaped detent groove 73 extending in the direction) is formed. The above-mentioned 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 this 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 groove 738/7 corresponding to the outer peripheral surface of the portion 20
3.・73°・73.・73. and 73L 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 by moving the shift lever 10 around the axis Z-Z to the driver's seat side (
At the position in which the shift lever 10 is operated to the upper part of FIG. 2, the P range and L range can be obtained by similarly operating the shift lever 10 further toward the driver's seat side.

Further, the detent groove 73 in the upper lever portion 20
Each step 74F of the detent groove is in contact with the
・74. I ・7a, ・74.・74□oh and 7
4t, a parallel width across flats 23 is formed for accurately setting the shift operation position. The width W2 of the P range groove 75 in the detent groove 73 is
It is set smaller than the outer diameter D1 of the upper lever part 20 shown in the figure, and slightly larger than the width W1 between the widths across flats 23.

Furthermore, the detent plate 70 has its P range groove 7.
5, the bending guide groove 76 extends to the passenger seat side.
(hereinafter referred to as guide groove 76) is formed.

This guide groove 76 is substantially perpendicular to the shift lever speed change operation direction, and the axis A, which is an extension of its center line, is the axis X-X.
The front surface of the vehicle extends in the direction passing through the stepped portion 74. of the P range groove 75. The rear surface of the vehicle is shaved so that the width W at the middle part thereof is set to be slightly larger than the outer diameter of the upper lever part 20 shown in FIG. The width W4 is set to be substantially the same as the width Wt of the P range groove 75. Also, detent plate 7
0's passenger side side wall? At 0a, there is a pin 77 on the inner circumferential side closer to the axis
A pin 78, to which one end of a return spring of a slide stopper to be described later is locked, is press-fitted parallel to the axis XX and integrally fixed by welding.

Furthermore, an arcuate groove 79 centered on the axis 0-0 of the pin 77 is formed on the outer circumferential side thereof, to which a release knob of a slide stopper, which will be described later, is attached.

And the bin 77 that forms the rotation axis of the slide stopper
The 0-rotation center axis OO is located on the axis connecting the shift operation rotation center axis XX of the shift lever 10 and the center line A of the guide groove 76.

As shown in FIGS. 9 to 11, the slide stopper 80 has a cross section having an upper wall 80b bent at a right angle, which blocks the guide groove 76 at the outer peripheral edge of the side wall 80a and comes into contact with the upper lever portion 20. It has an abbreviated shape,
A pipe-shaped rotating shaft 81, which is fitted into the pin 77, is integrally welded to the lower end thereof. The outer circumferential surface 80d of the upper wall 80b is aligned with the central axis (axis 〇-
The inner circumferential surface 7 of the upper wall 70b of the detent plate 70 has a curved shape centered on 〇).
It is designed to slide along 0d. Further, the side wall 80a of the slide stopper 80 has a knob mounting shaft 82 on its outer peripheral edge that fits into the arcuate 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. , respectively, the above axis 0-
It is press-fitted parallel to the 0 and fixed integrally by welding.

Furthermore, when the shift lever is returned, the upper lever portion 20
The front end surface (the left end surface in FIG. 10) of the slide stopper 80 that comes into contact with the slide stopper 80 is formed as an inclined surface 80c at an angle θ with respect to the plane B connecting the axis 0-0 and the front end surface of the upper 9g0b. .

As shown in FIG.
By fitting to the pin 77 provided in a through a pair of resin flanged bushes 84, the pin 77 is rotatably supported around the axis 0-0, and is further supported through a spacer 85. It is held in the axial direction by a snap ring 86 fitted into an annular groove of the pin 77. 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.

87 is a return spring (
The intermediate portion thereof is wound around a pipe-shaped rotating shaft 81, and both ends thereof are respectively engaged with a pin 78 of a detent plate and a pin 83 of a slide stopper. This return spring 87 is arranged so that the slide stopper 80 is connected to the guide groove 7 so that it does not fall even when the shift lever is in the toi<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.
The return spring 87 is held at the position shown in FIG. 3 in contact with the end of the return spring 87. In this way, the guide groove 76
During normal operation, the slide stopper 80 that blocks the shift lever 10 functions as a part of the detent plate 70 by preventing the shift lever 10 from being bent. At the same time, the outer circumferential surface 80d of the slide stopper is connected to the inner circumferential surface 70d of the detent plate.
The guide groove 76 is closed along 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 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 of the slide stopper. ing. Then, the inclined surface 24 defined by the width across flats 23 formed on the upper lever portion 20 mentioned above comes into contact with the front end surface of the guide groove 76, and the upper lever portion 20 is securely positioned at the solid line ■ position in FIG.
It is configured so that 0 stops.

In addition, FIG. 4 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 dust cover 90 has a box shape that covers the detent mechanism described above, and is made of a resin material. The dust cover 90 includes the detent groove 73 (P range groove 75), the guide groove 76, and the circular arc groove 7 of the detent plate 70, as shown in FIGS. 12 to 14.
A detent groove 93 (P range groove 95), a guide groove 96, and an arcuate groove 99 (FIG. 5) having similar shapes corresponding to the groove 9 are provided. The upper wall 90b of the dust cover 90 has a curved shape centered on the axis X-X like the detent plate 70, and the inner surface 90d has a pair of parallel protrusions 91, 91 along the curved shape. The two protrusions 91, 91 formed in the slide cover 10 are interposed in the gap between 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.
0 (FIGS. 3 and 4), and this dust cover 90 has its left and right side walls 90a and 90a.
It is attached to the detent plate 70 with four screws 94 tightened into holes 92 formed in the. In addition, the arc groove 7
A stopper release knob 89 made of resin is screwed to the tip of the knob attachment shaft 82 that protrudes through 9 and 99.

98 is fitted to the knob mounting shaft 82 and is attached to the detent plate 7.
This is a plate washer interposed between the dust cover 90 and the dust cover 90. Note that the lower inner circumferential surface 90 of this dust cover 90
c is formed as an inclined surface (draft angle during injection molding) from the viewpoint of sealability and assemblability with the dust boot 110 described later.

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

The dust boot 110 is made of a rubber base 112 in which a reinforcing metal plate 111 having an angular cross-section is embedded, as shown in FIG.
and a rubber seal portion 114 that is fitted and attached to an outer circumferential groove 113 formed in the base portion 112. The base 112 has three screws 115 shown in FIG.
It is attached to the lower bracket 60 in advance by fastening it to a nut 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 "ζ" in FIG. The edge 117 of the seal portion 114 seals between the vehicle floor F.The dust cover 110 is installed between the lower bracket 60, dust cover 90, and vehicle floor F to prevent water from entering the vehicle interior. It prevents dirt, dust, etc. from entering the vehicle, and also blocks noise from outside the vehicle.

Incidentally, in the tilt cab vehicle on which the shift lever device of the automatic transmission described above is mounted, as shown in FIG. It is configured to be rotatable. When the cab T is tilted as shown by the imaginary line in FIG. 1, the shift lever 1O is left behind on the side of the vehicle frame v. Note that W indicates a wheel.

In the foldable shift lever device for an automatic transmission configured as described above, the shift lever 1O is operated around the axis Z-Z along the detent groove 73 of the detent plate 70, and also around the axis X-X. Manipulate. 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 controlling the automatic transmission (not shown). Operate the manual valve lever to switch to the specified 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 10 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 bending. be done. 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 1O 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, 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 moves to the axis O at the same time.
-0 to release the guide groove 76.

When the slide stopper 80 is unlocked, the torsion spring 50 is acting on the upper lever portion 20 in the direction of its tilting force, so that the slide stopper 80 naturally collapses toward the passenger seat at the same time as the movement of the slide stopper 80 is completed. At this time, by adjusting the spring force of the torsion spring 50, the upper lever part 20 does not fall all at once from the imaginary &I 1 position in the arrow direction to the imaginary line ■ position in FIG. Stops at the solid line ■ position.

At this time, the slide stopper 80 is in contact with the upper lever portion 20 by its inclined surface 80c.

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. The inclined surface 24 formed on the upper lever part 20 by the width across flats 23 forms the guide groove 7.
6, and the upper lever portion 20 touches the front end surface of the inclined surface 2.
The solid line ■ in FIG. 16 where 4 is in contact with the front end surface of the guide groove 76
Stops securely in position. In addition, by selecting the setting position of the inclined surface 24 based on the width across flats 23 formed on the upper lever part 20, it is possible to accurately and arbitrarily set the intermediate position of the upper lever part 20, that is, the solid line ■ position. be. In addition, a protrusion may be formed in place of the pivoting slope 24 formed on the upper lever portion 20, or a so-called lock ball mechanism consisting of a recessed groove, a ball that engages with the recessed groove, and a spring that presses the ball against the recessed groove. A positioning means such as the above may also be provided.

Thereafter, push down the upper lever part 20 by hand in the direction of the arrow (imaginary line) until it touches the lower end surface of the guide groove 76, at the predetermined imaginary line ■ position. The outer diameter D+ portion is the guide groove 76
Then, the width across flats 23 of the upper lever portion engages with the groove width W4 portion of the guide groove 76 . 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 part 20 falls, the slide stopper 80 rotates around the axis vAo-o by the action of the return spring 870 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 portion 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 move the upper lever portion 20. It is securely held and 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 guide groove 76 is small and is biased by the return spring 87, so there will be no 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, as shown in Figure 17, there is a
In order to shift from the driver's seat to the passenger's seat, move the shift lever 1O placed between the driver's seat D and passenger's seat E to the front of the passenger's seat E, which is indicated by the broken line. The shift lever 10 that is folded down does not get in the way when moving the seat, making it extremely easy to move the seat. Note that F indicates the floor of the cab, and H indicates the steering handle.

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 part 20 moves, the slide stopper 80 also rotates around the axis 0-0 by the inclined surface 80c (in the direction of arrow G in FIG. 5), thereby releasing the guide groove 76. Then, at the same time as the upper lever portion 20 passes, the return spring 87
As a result, the guide groove 76 is automatically returned to its original position, which blocks 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 spring force of the torsion spring 50 is set so that when the stopper 80 shown in FIG. 16 is removed, the upper lever portion 20 stops at the solid line (■) position. Therefore, no spring force is applied to the upper lever portion 20 from the imaginary line m position in FIG. 16 to the solid line ■ position, and moreover, the upper lever portion 20 at the solid line ■ position is inclined.

Therefore, as shown by the broken line in FIG.
Even if the cab T is erroneously tilted with the cab T tilted down toward the passenger seat side, the upper lever part 20 is smoothly raised by the floor F of the cab T and automatically returns to its original upright position.

As explained above, according to this embodiment, the shift lever 10 is bent and tilted toward the passenger seat in the vehicle width direction, which is substantially perpendicular to the direction of gear change operation, making it easy to move the seat 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 10 is moved away from the driver's seat while the engine is running while the vehicle is stopped, or the shift lever is accidentally bent while moving the seat. Even if a part of the body touches the shift lever 10, the shift lever 10 is reliably held in the P range, so there is no risk that the vehicle will start moving unexpectedly, and 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,
The upper lever portion 20 can be released by simply moving the stopper release knob 89 of the slide stopper 80 toward the front of the vehicle.
The upper lever section 20 automatically falls down due to the spring force of the torsion spring 50 pressing the shift lever against the detent groove end surface 73a of the detent plate.
Good bending operability.

Moreover, when the stopper 80 is removed, the upper lever portion 20
However, it did not fall all at once to the imaginary line ■ position in Figure 1,
- I made it to stop at the solid line ■ position in Figure 1, which is in the middle of the alternation, so
The upper lever part 20 does not hit the driver's hand operating the stopper release knob 89 or the leg of the person sitting in the passenger seat, thus protecting the limbs of the driver and the person sitting in the passenger seat. It is possible and safe.

Furthermore, even if the cab T is tilted by mistake while the upper lever section 20 is tilted toward the passenger seat, the upper lever section 20 will be smoothly raised by the floor F of the cab T and will automatically return to its original upright position. Therefore, the floor F of the cab T will not be deformed and the shift lever 10 will not be damaged.

According to this embodiment, the upper lever portion 2 is moved by using the spring force of the detent torsion spring 50.
Since the upper lever part 20 is tilted down, a new spring for tilting the upper lever part 20 is not required, and it can be manufactured at a low cost. Moreover, the durability of the shift lever 10 can be improved since no unreasonable force is applied to the joint portion (bending portion) of the shift lever 10. Furthermore, since the bent portion of the shift lever IO is covered by the detent plate 70 and the dust cover 90, there is no risk of clothes getting caught on the bent portion or getting dirty with grease applied for lubrication when the shift lever is tilted down. .

The present invention has been described in detail with respect to specific embodiments, but
The present invention is not limited to the above-described embodiments, but includes various embodiments within the scope of the claims. Tensilan springs can also be used.

〔Effect of the invention〕

As explained above, according to the present invention, since the shift lever is tilted toward the passenger seat side perpendicular to the direction of gear change operation,
The bent shift lever does not get in the way when moving the seat, making it extremely easy to move the seat inside the vehicle.

In addition, the shift lever can only be bent in P range, so in the unlikely event that the driver leaves the engine running while the car is stopped and moves the shift lever and leaves the driver's seat, or if a part of the body accidentally touches 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 a simple operation of removing the stopper 7, and the shift lever has extremely good bending operability.

Furthermore, even if the cab is accidentally tilted with the shift lever in the tilted position, the floor of the cab and the shift lever will not be damaged.

Further, since the upper lever part is tilted using the spring pressing against the end face of the detent groove of the detent plate, there is no need for a new spring for tilting 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, in which a tiltable shift lever device for an automatic transmission according to an embodiment of the present invention is installed, and FIGS. This figure shows a foldable shift lever device for an automatic transmission according to an embodiment, and FIG. 2 is a plan view of the shift lever shifted to the parking range, and FIG. 3 is a longitudinal cross-section of the main part taken in the longitudinal direction of the vehicle. 4 is a sectional view taken along line II/-IV in FIG. 3, FIG. 5 is a side view of FIG. 2, and FIGS. 6 to 8 are enlarged views of the detent plate. Yes, Figure 6 is a plan view as seen from the arrow ■ direction in Figure 7, Figure 7 is a side view, Figure 8 is a view seen from the front of the vehicle, and Figures 9 to 11 are enlarged views of the slide stopper. Figure 9 is a plan view as seen from the arrow ■ direction in Figure 8, Figure 10 is a side view, Figure 11 is a view seen from the front of the vehicle, and Figures 12 to 14 are dust particles. 12 is a plan view, FIG. 13 is a sectional view taken along the line xm-xm in FIG. 12, and FIG. 14 is a sectional view taken along the line XIV-XIV in FIG. 12. Fig. 15 is a plan view of the slide cover, Fig. 16 is a sectional view showing the operation with the stopper removed, together with the shift lever upright state and the shift lever tilted state, and Fig. 17 is the foldable shift lever device of the present invention. 1 is a schematic perspective view showing the interior of a cab-over type vehicle employing the above-mentioned vehicle. Explanation of symbols 10--・--Shift lever 20--・Upper lever section 21...--Shift knob 30--Lower lever section 36--Control lever 40--・・・
-Joint means 41--Bolt 50--Torsion spring 60--Lower bracket 63-1111-Bolt 70--Detent plate 73-・−・
- Detent groove 73a - Detent groove end surface 75 - Parking range groove 76 - Bending guide groove 77 - Zen (slide stopper rotation axis) 79 -
---Circular groove 80-11--Slide stopper 82---Tub mounting shaft 87---Return spring 89--
... Stopper release knob 90 -- Dust cover 93 -- Detent groove 96 -- Bending guide groove 100 -- Slide cover 110 -- Dust boot x -- x--Shift lever shift operation rotation center axis Y-Y-- Control lever rotation center axis Z-Z---Shift lever bending rotation center axis o -o-・-・Rotation center axis of slide stopper 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 applicant Toyota Motor Corporation Banyan Kogyo Co., Ltd.

Claims (1)

[Claims] (1) Shifting of an automatic transmission between the driver's seat and the passenger's seat of a tilt cab vehicle that is placed on the vehicle frame and whose cab is configured to be rotatable around a center of rotation of the cab near the front end. An automatic transmission for a tilt cab vehicle in which a lever is arranged, 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, and both lever parts are bendably connected by a joint means. In the foldable shift lever device, 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 a detent plate fixed to a fixed member, and one part of the detent groove is formed. The upper lever portion is configured to be pressed against the end surface by a spring, and further a bending guide groove is formed in the detent groove to extend toward the passenger seat side and continuous with the parking range groove,
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 of the spring is configured such 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, which is characterized by a set force.