JP2002264849A - Operator's seat structure for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operator's seat structure for a vehicle provided with an operation part capable of improving the operability of an operator. SOLUTION: In a vehicle such as a tractor with a cabin capable of connecting a working machine for various works on a behind of a body thereof, a curved concave part 20 having a front part and an inside part open and getting thinner as it gets more backward is formed inside a panel member provided on a rear wheel fender 8 on the seat 16 side or the rear wheel fender 8. Various setting equipment and levers for operating the vehicle and the working machine are provided in the concaved part 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cockpit structure of a vehicle with a cabin such as a tractor.

[0002]

2. Description of the Related Art In the case of a tractor which is a vehicle with a cabin, a working machine for performing various operations can be connected to the rear of the body, but the working machine to be connected can usually be operated on the machine side. It is configured as follows. Various devices and levers for operating the machine and the working machine are provided near the driver's seat in the cabin.

In the conventional configuration, an operation panel is provided mainly on or near the rear wheel fender on the side of the driver's seat, and the various devices and levers described above are arranged. The arrangement was not designed in consideration of ease of use.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned conventional problems and the like, and has as its object to provide a cockpit of a vehicle provided with an operation section capable of improving the operability of an operator. It is to provide a structure.

[0005]

In order to achieve the above object, the present invention is configured as follows. That is, claim 1
According to the invention, in a vehicle in which a work machine for performing various operations can be connected to the rear of the body, the work machine is installed on the rear wheel fender (8) beside the seat (16) or on the rear wheel fender (8). A curved concave portion (20) inside the panel member, opening forward and inward and tapering toward the rear.
Are formed, and various setting devices (24, 25) and levers (21, 22, 2, 2) for operating the machine or the working machine are formed in the recesses (20).
3) Classification is provided. The invention according to claim 2 is characterized in that the concave portion (20) has a horizontal surface (20b) serving as an arm rest portion of the operator, and an inclination continuous with the horizontal surface (20b) and extending along the front of the rear wheel (3). A surface (20a) is formed.

[0006] The invention according to claim 3 is the rear wheel (3).
The lever (2) on the inclined surface (20a) along the front of the
1, 22, 23) and the grip portion of the lever is set higher than the horizontal plane (20b) and lower than the horizontal plane (20c) on the side wall of the recess (20). And According to a fourth aspect of the present invention, there is provided a lever (37) or setting device (33, 34,...) In which an operation direction or various display directions are arranged toward a position of a substantially arm of an operator, on a side wall of the concave portion (20). It is characterized by having provided.

[0007] With the cockpit structure of the vehicle according to the present invention, the operator can easily grasp the levers and the like even while facing forward, and can easily operate various levers and setting devices. In addition, since the elbow of the operator moves back and forth along the curved portion with respect to the front and rear vibrations, the impact is smaller than that of the recess formed in the perpendicular direction.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of a general tractor with a cabin. 2 and 3
1 is a side view and a plan view of the inside of a cabin in a tractor with a cabin according to the present invention. The tractor 1 shown in FIG. 1 is provided with an engine section covered by a hood 4 at the front of a chassis having a pair of left and right front wheels 2, 2 and rear wheels 3, 3, and a cabin 5 at the rear. Have been. Further, a work machine coupling device (hitch portion) 6 is provided at the rear of the chassis.
(See FIG. 3). The cabin 5 includes an underbody 7 (see FIG. 2), rear wheel fenders 8, 8, a roof 9, front pillars 10, 10, rear pillars 11,
11 and the like, the left and right doors 12, 1
2, a front window 13, front lower windows 14, 14, and a rear window 15 are attached. A rear surface of the floor surface of the underbody 7 is formed one step higher, and a seat 16 is provided thereon.
Further, an instrument panel 17, a steering handle 18, a clutch pedal, a brake pedal 19, and the like are mounted in front of the cabin. Further, the tractor according to the present invention includes an operating unit provided with various setting devices and levers for operating the machine and the working machine, and a rear wheel fender 8 on the right side of the driver's seat.
It is formed using. FIG. 4 is an enlarged plan view of the operation unit. The operating portion includes a curved concave portion (opened forward and inward and tapered toward the rear) inside the rear wheel fender 8 on the right side of the seat 16 or a panel member installed on the rear wheel fender 8. As shown in the figure, the entire periphery is not necessarily surrounded by the side wall, but indicates a more concave portion) 20. In the recess 20, various setting devices 2 for operating the machine or the working machine are provided.
4, 25, levers 21, 22, 23, etc. are arranged. The recess 20 has a horizontal surface 20b serving as an arm rest portion of the operator, and an inclined surface 20a continuous with the horizontal surface 20b and extending along the front portion of the rear wheel 3. Further, a horizontal surface 20c is formed on the side wall from the side to the rear of the concave portion 20.

The levers 21, 22, and 23 are provided on an inclined surface 20a extending in front of the rear wheel 3. Then, the grip portion of the levers is attached to the horizontal
horizontal plane 20 above b and on the side walls of said recess 20
It is set to be lower than c. In addition,
On a horizontal surface 20c on the side wall of the concave portion 20, a lever 37 and various setting devices 31 to 36 in which the operation direction or various display directions are arranged toward the approximate arm position of the operator are provided. That is, this operation unit is a gentle inclined surface 2 which is located forward in the inside as viewed from the operator and descends forward.
0a, a substantially horizontal surface 20b that is rearward on the inner side and is continuous with the inclined surface 20a and is formed substantially the same or slightly higher than the rear end thereof, and a substantially horizontal surface 20c that is formed on the outer side and is formed one step higher than the horizontal surface 20b. The above-mentioned various setting devices and levers are provided here as is apparent with reference to FIGS. According to the cockpit structure of the vehicle as described above, it is easy for the operator to grasp the lever and the like even when the operator faces forward, and it becomes easy to operate various levers and the setting device. In addition, since the elbow of the operator moves back and forth along the curved portion with respect to the front and rear vibrations, the impact is reduced as compared with the concave portion formed at right angles. As described above, basically, the operator directly touches the above-mentioned various setting devices and levers within the range of the operation in which the operator turns his / her arm horizontally from a little rearward to the front while sitting in the driver's seat. Operation becomes possible, so that operability is improved and comfortable operation can be performed. It is convenient to place the arms and elbows as described above if the height of the above-described inner rear horizontal surface 20b is made substantially the same as the height of the armrest 16a attached to the seat 16.

[0010] Here, various setting devices arranged in the operation unit,
The levers will be described first.
Has a position lever 21, a throttle lever 22,
A main change lever 23, a speed change switch 24, and a position switch 25 are provided. The position lever 21 operates to raise and lower the position, with the front side in the lowering direction and the rear side in the raising direction. When the throttle lever 22 is tilted forward, the accelerator is closed, and when it is tilted backward, the accelerator is opened. The main change lever 23 switches between neutral (neutral), high-speed, medium-speed, and low-speed three speeds.
The shift switch 24 performs fine adjustment of the shift. Further, the position switch 25 raises and lowers the position at a stretch.

On the inner rear horizontal surface 20b, a raising position adjustment dial 26, an inclination adjustment dial 27, a horizontal changeover switch 28, a horizontal manual switch 29, and a horizontal sensitivity switch 30 are provided. The raising position adjusting dial 26 adjusts the raising position of the working machine. The horizontal changeover switch 28 selects "automatic", "parallel", "manual" and "automatic".
Switch the work equipment mounting width at the time of. "Automatic" keeps the work machine at the angle set by the tilt adjustment dial 27 regardless of the inclination of the tractor body, "Parallel" keeps the work machine parallel to the tractor body, and "Manual" moves the work machine to the tractor body. The desired angle set by the horizontal manual switch 29 is maintained.
The tilt adjustment dial 27 adjusts the tilt of the work machine when the horizontal changeover switch 28 is "automatic". The horizontal manual switch 29 manually adjusts the work implement to a desired angle. The horizontal sensitivity switch 30 switches the operation sensitivity of the automatic horizontal control.

On the outer horizontal surface 20c, there are provided a cultivation depth adjusting dial 31, a PTO on / off switch 32, a changeover switch 33, a 4WD changeover switch 34, a load auto switch 35, an accelerator switch 36, and a sub-control lever 37.
Are arranged. The cultivation depth adjusting dial 31 adjusts the cultivation depth during the tilling operation. The changeover switch 33 of the PTO switches between normal rotation and reverse rotation. The 4WD switch 34 switches between “two-wheel drive”, “four-wheel drive”, and “turning four-wheel drive”. In the case of "turning four-wheel drive", the front wheels are driven at high speed. The load auto switch 35 lowers the shift position by one step when turned on when the load on the work implement is large. When the accelerator switch 36 is turned on, automatic accelerator control is performed. For example, the accelerator is automatically lowered when moving backward or when raising the work implement. The sub-conversing lever 37 is configured in triple.

Next, the configuration of the position lever 21 and the throttle lever 22 will be described. FIG. 5 is a structural view of the levers 21 and 22 viewed from the side, and FIG. 6 is a structural view of the levers 21 and 22 viewed from the front. The position lever 21 is
The tip 39a of the arm 39 can be moved in the front-rear direction by using the pivot 39 as a pivot.
At a predetermined position. And the above-mentioned rotation fulcrum 3
An arm 40 mounted coaxially with 9a and an arm 42 mounted on the angle sensor 43 are connected by an angle sensor operation rod 41. When the position lever 21 is operated back and forth, the arm 42 on the angle sensor side is
Is rotated, whereby the rotation angle of the position lever 21 can be detected by the angle sensor 43. On the other hand, the throttle lever 22 has its arm 44
Can be moved in the front-rear direction using the bending portion 44a as a pivot point,
The rotation fulcrum 44a is provided at a predetermined position of the bracket 38. Arm 44 of throttle lever 22
One end of a wire cable 45 is attached to the tip of the, and the other end is connected to the engine side. When the throttle lever 22 is operated back and forth, the opening and closing of the accelerator can be controlled via the wire cable 45.
As described above, the position lever 21 and the throttle lever 22 can be configured compactly in a small space of the operation unit 20.

Next, the lowering mechanism of the position lever 21 will be described. FIG. 7 and FIG. 8 are a side view and a plan view of a main part for describing the lowering control mechanism, respectively. As shown in the figure, a lowering control dial 46 is disposed near the lever guide 21a of the position lever 21, and a cam 47 having a fan shape in a plan view is fixed to a rotation shaft 46a of the lowering control dial 46. As is apparent from FIG. 8, the left side diameter A of the cam 47 is longer than the right side diameter B in plan view.
By turning 6, the cam 47 is simultaneously rotated in the horizontal direction. Also, the arm 3 of the position lever 21
An L-shaped stopper 48 in plan view is fixed to the front side of 9, and the distal end of the stopper 48 is configured to abut the end face of the cam 47.

In the above configuration, the lowering control dial 4
When the lever 6 is fully turned to the left (counterclockwise), the stopper 48 of the position lever 21 becomes the small diameter (B) of the cam 47.
The position lever 21 can be tilted forward until it comes into contact with the side (lowest position). Then, when the lowering control dial 46 is fully turned right (clockwise),
The position lever 21 can be tilted forward until the stopper 48 of the position lever 21 comes into contact with the large diameter (A) side of the cam 47, that is, until the position "M" which is closer to the lowermost position than the above-described lower position (FIG. 7). And the position of the break line in FIG. 8). Thereby, the lowering of the position lever 21 can be performed at a position before the lowermost position, and it is possible to prevent the position from being lowered too much carelessly.

Next, the configuration of the sub-control lever 37 will be described. FIG. 9 is for explaining the configuration of the sub-control lever 37. As described above, the sub-control lever 37 is configured in three in this embodiment, and the sub-control lever 37 and the sub-control valve 49 have different directions. The distances are close to each other. An intermediate link fulcrum 56 is provided in the middle of the link between the sub control lever 37 and the sub control valve 49, and the intermediate link fulcrum 56 is connected by rods 51, 54, 55, and 57. In FIG. 9, reference numeral 50 denotes the sub-control lever 37.
Reference numeral 52 denotes an adjustment unit, reference numeral 53 denotes a controller, reference numeral 58 denotes a valve operation side link attached to the sub-con valve 49, and reference numeral 58a denotes its rotation support. By configuring as described above, compared with the conventional connection using a push-pull cable or the like, it can be configured at a lower cost and in a smaller space, and the directivity of the sub-conversing lever 37 and the sub-conversing valve 49 is shifted as in this embodiment. Can be configured, and the maintenance is good.

Next, the configuration of the main change lever 23 will be described. FIG. 10 is a side view for explaining the configuration of the main change lever 23, and FIG.
FIG. 4 is a configuration diagram for explaining the front-rear movement of the main change lever 23, and FIG. 4B is a configuration diagram for explaining the left-right movement thereof. That is, the stroke of the main change lever 23 in the front-rear direction is such that the intermediate link 6 having the rod 59 and the fulcrum 61a is provided between the first link 64 on the main change lever 23 side and the link 62 on the transmission side.
1 and a rod 60, and the main change lever 23 slides in the left-right direction with a second link 65 provided with a rotation fulcrum 65a on the main change lever 23 side to cope with the swing of the cabin 5. The transmission side is connected to the transmission side by a wire cable 63. in this way,
Since the operation link of the main change lever 23 is composed of a rod and a wire cable, it can be configured in a small space and compact as compared with a conventional configuration in which the lever is directly operated from the transmission side, and the cabin 5 can be mounted without removing the lever. Desorption is possible.

Next, a configuration in which a simple table is provided in the cabin will be described. FIG. 12 is a view of the inside of the cabin as viewed from the front side, and shows the rear wheel fender 8 on the left side of the seat 16 (in FIG. 12, on the right side of the seat 16 because it is viewed from the front side).
The simple table 66 is provided in the vicinity. More specifically, a table holding portion 68 is provided on the upper surface of the rear wheel fender 8, and the table holding portion 68 has two horizontally long guide holes 68 a at the front and rear of the table holding portion 68. The rotation shaft 67 is connected to the guide hole 68.
a. Therefore,
The simple table 66 can be slid left and right, and at the same time, when pulled out to the front, can be folded down by the rotation shaft 67 until it hits the slope of the rear wheel fender 8. Therefore, when not in use, the simple table 66
Is stored along the slope of the rear wheel fender 8 so that it does not get in the way. In use, the simple table 66 is lifted up and slid horizontally to the back to secure the fixing knob 6.
9, the simple table 66 is held horizontally. After use, the user can remove the fixing knob 69 and slide the simple table 66 forward again to fold it down.

Next, the configuration of the hatch provided on the cabin ceiling will be described. As shown in FIG. 13, a hatch 70 that can be opened and closed is provided on the roof (ceiling) 9 of the cabin 5. The hatch 70 is a resin molded product formed by, for example, blow molding. 14 is a view of the hatch 70 from the cabin interior side, FIG. 15 is a view of the hatch 70 from the outside, FIG. 16 is a sectional view taken along line CC of FIG. 15, and FIG. 17 is a sectional view taken along line DD of FIG. This shows an open state. As shown in FIGS. 15 to 17 and the like, the hatch 70 has a hinge fulcrum 70a.
In addition to providing two bulging portions 71, 71 partially bulging in the vicinity, a drain hole 72 (see FIG. 17) is formed on the inner surface side of the opening and closing base end of the hatch 70. In FIG. 17, 7
3 is a weather strip. When the drainage hole 72 is provided in the resin molding hatch 70 on the ceiling of the cabin 5 as described above,
As shown in FIG. 17, water accumulated due to condensation in the resin can be drained from the drain hole 72 when the hatch 70 is opened.

Next, the configuration of the mount rubber used when mounting the cabin will be described. FIG. 18 shows a seat surface of the mounting rubber 74.
4 are formed at a plurality of locations around the periphery of the groove 4. Since the lower surface of the conventional mount rubber was flat, a gap was created between the washer and the washer attached to the lower surface of the mount rubber during vibration, making it impossible to absorb vibration.
As a result, there was a drawback that the cabin vibration increased. However, as in the present embodiment, by providing a plurality of grooves 75 on the lower surface of the mount rubber 74 to form an uneven portion, followability to the body vibration during traveling is increased. As a result, the cabin vibration can be reduced.

Next, the structure for joining the bonnet and the cabin during assembly will be described. FIG. 19 is a diagram showing a joint between the bonnet and the cabin, and FIG. 20 is an enlarged side view of the seal member. The seal member 76 has a flange portion 76a that can be brought into contact with the outer wall surface of the cabin, for example, the windshield 13 of the cabin 5, and a U-shaped insertion portion 76b in a side view into which the end 4a of the hood 4 of the vehicle can be inserted. The flange portion 76a and the insertion portion 76b are integrally formed, and a support member 76c is provided between the flange portion 76a and the insertion portion 76b. The flange portion 76a and the insertion portion 76a are made of, for example, hard rubber, and the support member 76c is made of soft rubber, but the material is not particularly limited to these. When the seal member 76 is used, the flange portion 76a is
When it is mounted on the chassis, it comes into contact with the outer wall surface,
Since the end 4a of the bonnet 4 on the cabin side is inserted into 6b, the gap between the bonnet 4 and the cabin 5 at the time of assembly can be easily joined by the seal member 76, and the appearance is not impaired even when viewed from the outside.

[0022]

As described above in detail, according to the present invention, the front and the inside are opened and the rear is opened inside the rear wheel fender on the side of the seat or the panel member installed on the rear wheel fender. A curved concave portion that tapers as it is located is formed, and various setting devices and levers for operating the machine or the working machine are arranged in the concave portion, so that the operator can grasp the lever and the like even while facing forward. It is easy to operate various levers and setting devices, and the operator's elbow moves back and forth along the curved part even in front and rear vibration, so there is less impact compared to the recess formed in the right angle direction . In short, various operations can be performed without the operator moving their hands,
Operability is improved and comfortable operation becomes possible.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a tractor with a cabin according to the present invention.

FIG. 2 is a side view of the inside of the cabin.

FIG. 3 is a plan view of the inside of the cabin.

FIG. 4 is a layout diagram of an operation unit.

FIG. 5 is a side view showing a configuration of a position lever and a throttle lever.

FIG. 6 is a configuration diagram viewed from the front.

FIG. 7 is a side view showing a configuration for restricting the lowering of a position lever.

FIG. 8 is a plan view thereof.

FIG. 9 is a diagram showing a configuration of a sub-conversion lever.

FIG. 10 is a diagram showing a configuration of a main change lever.

FIG. 11 is a view showing a configuration of a main change lever.

FIG. 12 is a diagram showing the configuration of a simple table as viewed from the front inside the cabin.

FIG. 13 is a perspective view showing a hatch on the cabin ceiling.

FIG. 14 is a plan view of the hatch as viewed from inside the cabin.

FIG. 15 is a plan view of the hatch as viewed from above the cabin.

16 is a sectional view taken along the line CC of FIG.

FIG. 17 is a sectional view taken along the line DD in FIG. 15 and showing a state where a hatch is opened.

FIG. 18 is a plan view showing a seat surface of a mount rubber.

FIG. 19 is a view showing a joint configuration between a bonnet and a cabin.

FIG. 20 is an enlarged side view of the seal member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tractor 2 Front wheel 3 Rear wheel 4 Bonnet 5 Cabin 8 Rear wheel fender 9 Roof 12 Door 13 Front glass 15 Rear glass 16 Seat 20 Depression 21 Position lever 22 Throttle lever 23 Main change lever 37 Subconversion lever 46 Lowering regulation dial 66 Simple table 70 Hatch 76 Sealing member

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshi Hagiyama 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (72) Inventor Shizuo Niimi 1-Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Engineering Department F-term (reference) 3D040 AA01 AA22 AB04 AC07 AC29 AD07 3J070 AA03 BA11 BA32 CC29 CE04 DA24

Claims (4)

[Claims] 1. A vehicle in which a working machine for performing various operations can be connected behind a body of a vehicle, a rear wheel fender (8) beside a seat (16) or a panel installed on the rear wheel fender (8). Inside the member, a curved concave portion (20) that opens forward and inward and tapers toward the rear is formed, and in the concave portion (20), various setting devices for operating the machine or the working machine. (24, 25), lever (21, 22, 23)
The cockpit structure of a vehicle, characterized by the arrangement of various types. 2. A horizontal surface (20b) serving as an arm rest portion of an operator, and the concave surface (20) has a horizontal surface (20b).
(20a) that is continuous with the rear wheel (3) and extends in front of the rear wheel (3)
The cockpit structure of the vehicle according to claim 1, wherein: 3. The levers (21, 22, 23) and the like are projected from an inclined surface (20a) extending in front of the rear wheel (3), and a grip portion of the lever is attached to the horizontal plane (2).
2. The cockpit structure for a vehicle according to claim 1, wherein the driver seat structure is set higher than 0b) and lower than a horizontal plane (20 c) on a side wall of the recess (20). 4. A lever (37) or a setting device (33, 34...) In which an operation direction or various display directions are arranged toward an approximate arm position of an operator is provided on a side wall of the concave portion (20). The cockpit structure of a vehicle according to claim 1, 2 or 3, wherein: