Work vehicle

Abstract

To constitute a work vehicle so that a plurality of occupants sitting on a front passenger seat and a rear seat can easily support their own bodies.SOLUTION: A work vehicle is provided with a laterally long seat 9 or a plurality of seats 9 which are provided in a machine body along a left and right direction and on which a plurality of occupants can sit. The work vehicle is also provided with a plurality of auxiliary handles 19 which are provided in front of the seat 9 and can be held by hands of an occupant sitting on the seat 9, and the plurality of auxiliary handles 19 are provided side by side along the left and right direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a configuration around a seat in a work vehicle. [Background technology]

[0002] As disclosed in Patent Document 1, many work vehicles have a driver's seat and a passenger seat arranged side by side along the left and right sides of the vehicle, and some have a passenger seat that is wider than the driver's seat, allowing multiple occupants to sit in the passenger seat. In addition to a driver's seat and a passenger seat, some work vehicles have a long, horizontal rear seat behind the driver's seat and passenger seat, allowing multiple passengers to sit in the rear seat. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-191679 Summary of the Invention [Problem to be solved by the invention]

[0004] Multipurpose work vehicles such as the one disclosed in Patent Document 1 often travel through rough terrain or mountainous areas, which can cause significant shaking of the vehicle body while traveling. As a result, there is a demand for a structure that allows occupants seated in the passenger seat or rear seat to support their bodies.

[0005] The present invention aims to provide a construction vehicle that allows multiple occupants seated in the passenger seat and rear seats to easily support their own bodies. [Means for solving the problem]

[0006] The work vehicle of the present invention comprises a running device, a body to which the running device is attached and supported by the running device, a horizontally long seat or seats that are arranged on the body along the left-right direction and can seat multiple occupants, and a plurality of auxiliary handles that are arranged in front of the seats and can be held by occupants seated in the seats, with the plurality of auxiliary handles arranged in a row along the left-right direction.

[0007] According to the present invention, when a long, horizontal seat that can seat multiple occupants is provided on the aircraft along the left-right direction, or when multiple seats are provided on the aircraft lined up along the left-right direction, multiple auxiliary handles are provided in front of the seats, so that occupants sitting in the seats can support their bodies by holding the auxiliary handles with their hands.

[0008] According to the present invention, multiple auxiliary handles are arranged in a row along the left-right direction, so that when multiple occupants are seated in a long, horizontal seat, or when occupants are seated in each of multiple seats, it is possible to set up a state in which an auxiliary handle is provided for each of the multiple occupants, for example, such that one occupant holds one auxiliary handle in front of them. This makes it easier for each of the multiple occupants to support their own body compared to a configuration in which multiple occupants share a common horizontal auxiliary handle, thereby improving the comfort of the occupants sitting in the seats.

[0009] In the present invention, it is preferable that each of the plurality of auxiliary handles has the same size and shape.

[0010] According to the present invention, multiple auxiliary handles are configured to be identical, and each auxiliary handle is relatively small. This means that multiple auxiliary handles can be produced using a relatively small mold, and they can be produced using the same mold, which reduces production costs.

[0011] According to the present invention, it is possible to easily obtain a state in which two auxiliary handles are arranged side by side in the left-right direction, or a state in which three or four auxiliary handles are arranged side by side in the left-right direction, depending on the state of the aircraft and the state of the seats.

[0012] In the present invention, it is preferable that a driver's seat and a passenger seat are provided on the vehicle body side by side along the left-right direction, and that the seat is the passenger seat.

[0013] According to the present invention, a driver's seat and a passenger seat are provided side by side in the left-right direction on the aircraft body, and a horizontally long passenger seat that can seat multiple passengers is provided along the left-right direction, or multiple passenger seats are provided side by side along the left-right direction, which is advantageous in terms of improving the comfort of the passenger sitting in the passenger seat.

[0014] In the present invention, it is preferable that the vehicle is provided with a first horizontal frame that is provided at a position higher than the lower part of the vehicle and is connected in the left-right direction across right and left parts of the vehicle forward of the driver's seat and the passenger seat, a second horizontal frame that is provided at a position higher than the first horizontal frame and is connected in the left-right direction across right and left parts of the vehicle forward of the driver's seat and the passenger seat, a vertical frame that is provided in front of the driver's seat and is connected in the up-down direction across the first horizontal frame and the second horizontal frame, and a steering handle that is attached to the vertical frame and is used for steering operations, and a third horizontal frame that is provided at a position higher than the driver's seat and the passenger seat of the vehicle and is connected in the left-right direction across the passenger seat side of the right or left part of the vehicle and the vertical frame, and the auxiliary handle is attached to the third horizontal frame.

[0015] In a work vehicle where the vehicle body shakes significantly while driving, the driver may try to support his or her body by holding tightly on the steering wheel. According to the present invention, a first horizontal frame and a second horizontal frame are connected across the right and left parts of the aircraft, a vertical frame is connected across the first horizontal frame and the second horizontal frame, and a steering handle is attached to the vertical frame. As a result, the steering handle is firmly supported by the first horizontal frame, the second horizontal frame, and the vertical frame, so even if the driver holds the steering handle tightly to support his or her body, the driver's body can be supported comfortably by the steering handle.

[0016] For example, if the driver's seat (vertical frame) is located on the left side and the passenger seat is located on the right side, the vertical frame and the right part of the aircraft will be relatively far apart. If the driver's seat (vertical frame) is located on the right side and the passenger seat is located on the left side, the vertical frame and the left part of the aircraft will be relatively far apart.

[0017] According to the present invention, the third horizontal frame is connected to the vertical frame and the right (left) part of the aircraft body, which is on the passenger side, thereby improving the connection strength between the first horizontal frame, second horizontal frame, third horizontal frame and vertical frame to the aircraft body, which is advantageous in terms of firmly supporting the steering handle.

[0018] According to the present invention, the auxiliary handle is attached to the third horizontal frame, which has the function of firmly supporting the steering handle and the function of supporting the auxiliary handle, thereby simplifying the structure by combining these functions.

[0019] In the present invention, the third horizontal frame has a first portion connected to the vertical frame and extending rearward, a second portion connected to the passenger side portion of the right or left part of the body and extending rearward, and a third portion connected along the left-right direction between the rear of the first portion and the rear of the second portion, and it is preferable that the auxiliary handle is attached to the third portion.

[0020] According to the present invention, the third portion of the third horizontal frame is located rearward (closer to the passenger seat) than the first horizontal frame, the second horizontal frame, and the vertical frame. As a result, even if the first horizontal frame, second horizontal frame, and vertical frame are located farther forward from the passenger seat, the auxiliary handle can be easily positioned in an appropriate position forward from the passenger seat by attaching the auxiliary handle to the third part of the third horizontal frame. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] Figures 1 to 5 show a multipurpose work vehicle, which is an example of a work vehicle, and in Figures 1 to 5, F indicates the forward direction, B indicates the backward direction, U indicates the upward direction, D indicates the downward direction, R indicates the right direction, and L indicates the left direction.

[0023] (Overall configuration of the work vehicle) As shown in Figures 1 and 2, right and left front wheels 1 are provided at the front of the machine body 3, and right and left rear wheels 2 are provided at the rear of the machine body 3, with the machine body 3 being supported by the front wheels 1 and rear wheels 2. The machine body 3 has a floor frame 4, a rope frame 5, a rear frame 6, a lower frame 7, etc. In this case, the front wheels 1 and rear wheels 2 correspond to the running gear.

[0024] A floor frame 4 is provided at the bottom of the fuselage 3, and a driver's seat 8 and a passenger seat 9 are provided on the floor frame 4, aligned in the left-right direction. A ROP frame 5 is connected to the floor frame 4 so as to surround the driver's seat 8 and passenger seat 9. The passenger seat 9 has a width approximately twice that of the driver's seat 8, and can accommodate two passengers. In this case, the passenger seat 9 corresponds to the seat.

[0025] Right and left doors 10 are attached so as to be able to open and close to the right part 5a and left part 5b of the ROPs frame 5. A rear frame 6 and a lower frame 7 are connected to the rear part of the ROPs frame 5 and extend rearward, and a cargo bed 11 is provided on the rear frame 6.

[0026] (Configuration of the travel transmission system) As shown in Fig. 1, an engine 12, a continuously variable transmission 13, a transmission case (not shown), and rear wheels 2 are mounted on a lower frame 7. Inside the transmission case, there are provided a gear-type auxiliary transmission (not shown) capable of shifting to three forward speeds and one reverse speed, a rear wheel differential (not shown), and a front wheel transmission (not shown).

[0027] The power of the engine 12 is transmitted to the continuously variable transmission 13 where the speed is changed, transmitted from the continuously variable transmission 13 to the auxiliary transmission where the speed is changed, transmitted from the auxiliary transmission to the rear wheel differential device, and transmitted from the rear wheel differential device to the rear wheels 2. The power branched between the auxiliary transmission and the rear wheel differential device is transmitted to the front wheels 1 via the front wheel transmission device.

[0028] When the front wheel transmission is operated to the four-wheel drive state, power branched between the sub-transmission and the rear wheel differential is transmitted to the front wheels 1, resulting in a four-wheel drive state in which the front wheels 1 and the rear wheels 2 are driven. When the front wheel transmission is operated to the two-wheel drive state, power is cut off at the front wheel transmission, resulting in a two-wheel drive state in which the rear wheels 2 are driven.

[0029] (Configuration of support frame 20) - 1 As shown in Figures 3, 4, and 5, the support frame 20 is connected in the left-right direction across the right part 5a and left part 5b of the ROPS frame 5, and is located at a higher position than the floor frame 4 and forward of the driver's seat 8 and passenger seat 9 in the aircraft body 3 (see Figures 1 and 2).

[0030] The support frame 20 has a first horizontal frame 21, a second horizontal frame 22, a third horizontal frame 23, and right and left vertical frames 24. In this case, the right section 5a and the left section 5b of the ROPS frame 5 correspond to the right section 5a and the left section 5b of the body 3.

[0031] The first horizontal frame 21 is configured in a straight line and is provided at a higher position than the floor frame 4. The first horizontal frame 21 is connected in the left-right direction across the right portion 5a and left portion 5b of the ROPS frame 5, and is provided forward of the driver's seat 8 and passenger seat 9 (see FIGS. 1 and 2).

[0032] The second horizontal frame 22 has a right portion 22a, a left portion 22b, and a central portion 22c. The right portion 22a of the second horizontal frame 22 is connected to the right portion 5a of the ROPs frame 5 and extends diagonally forward left in a plan view. The left portion 22b of the second horizontal frame 22 is connected to the left portion 5b of the ROPs frame 5 and extends diagonally forward right in a plan view. The central portion 22c of the second horizontal frame 22 is connected along the left-right direction across the front ends of the right portion 22a and left portion 22b of the second horizontal frame 22.

[0033] As a result, the second horizontal frame 22 is provided at a higher position than the first horizontal frame 21, and in plan view, is provided further forward than the first horizontal frame 21. The second horizontal frame 22 is connected in the left-right direction across the right portion 5a and left portion 5b of the ROPS frame 5, and is provided further forward than the driver's seat 8 and passenger seat 9 (see FIGS. 1 and 2).

[0034] (Configuration of support frame 20)-2 3, 4, and 5, the right and left vertical frames 24 have upper portions 24a and lower portions 24b. The lower portions 24b of the vertical frames 24 are connected at their lower ends to the left portions of the first horizontal frames 21, and the lower portions 24b of the vertical frames 24 are provided along the vertical direction.

[0035] The front part of the upper part 24a of the vertical frame 24 is connected to the left part of the second horizontal frame 22 (central part 22c), and the upper part 24a of the vertical frame 24 is provided along the front-to-rear direction. The upper part of the lower part 24b of the vertical frame 24 is connected to the rear part of the upper part 24a.

[0036] As a result, the vertical frame 24 is formed in an angled shape when viewed from the side, is connected in the vertical direction across the first horizontal frame 21 and the second horizontal frame 22, and is located in front of the driver's seat 8 (see Figures 1 and 2).

[0037] The third horizontal frame 23 has a first portion 23a, a second portion 23b, and a third portion 23c. The first portion 23a of the third horizontal frame 23 is connected to the lower portion 24b of the right vertical frame 24 and extends rearward.

[0038] The second portion 23b of the third horizontal frame 23 is connected to the right portion 5a of the ROPS frame 5 (the portion of the right portion 5a or the left portion 5b of the body 3 that is on the passenger seat 9 side) and extends rearward. The third portion 23c of the third horizontal frame 23 is connected along the left-right direction across the rear of the first portion 23a and the rear of the second portion 23b of the third horizontal frame 23.

[0039] The third horizontal frame 23 is provided forward of the driver's seat 8 and the passenger seat 9 (see FIGS. 1 and 2). The third horizontal frame 23 is provided between the first horizontal frame 21 and the second horizontal frame 22 in rear view, and is provided at a higher position than the first horizontal frame 21 and a lower position than the second horizontal frame 22.

[0040] (Configuration of the Periphery of Support Frame 20) As shown in FIGS. 3, 4, and 5, the floor frame 4 extends forward beyond the support frame 20 (second horizontal frame 22).

[0041] The right and left upper and lower frames 25 extending in the up-down direction are connected to the right and left portions of the central portion 22c of the second horizontal frame 22 and the floor frame 4. In a side view, the upper and lower frames 25 are provided forward of the ROP frame 5 and the first horizontal frame 21. The front-rear frame 26 extending in the front-rear direction is connected to the left portion of the first horizontal frame 21 and the middle portion of the left upper and lower frame 25.

[0042] A front panel 27 is attached across the front of the floor frame 4, the right and left parts 5a and 5b of the ROP frame 5, the second horizontal frame 22, and the right and left upper and lower frames 25. The front panel 27 separates the area behind the support frame 20 (the area of ​​the driver's seat 8 and passenger seat 9) from the area in front of the support frame 20.

[0043] Right and left front frames 28 extending in the vertical direction are connected to the right and left parts of the central portion 22c of the second horizontal frame 22 and extend diagonally downward and forward. Right and left front frames 29 extending in the vertical direction are connected to the front ends of the floor frames 4 and extend upward, with the lower ends of the front frames 28 and the upper ends of the front frames 29 connected to each other.

[0044] The right and left front and rear frames 30 are connected across the vertical middle portions of the vertical frames 25 and the vertical middle portions of the front frame 29. A horizontal frame 31 extending in the left-right direction is connected across the right and left front frames 29. A radiator 32 is attached to the front and rear frames 30 and the horizontal frame 31.

[0045] (Front wheel 1 support structure) As shown in Figure 5, right and left upper arms 33 are attached to the front and rear frames 30 so as to be able to swing up and down, and right and left lower arms 34 are attached to the front parts of the floor frames 4 so as to be able to swing up and down. Knuckles (not shown) to which hubs 35 are attached are attached to the upper arms 33 and lower arms 34, and front wheels 1 (see Figure 1) are attached to the hubs 35.

[0046] Right and left suspension springs 36 and right and left shock absorbers 37 are provided, and the lower parts of the suspension springs 36 and shock absorbers 37 are attached to the upper arm 33. The upper parts of the suspension springs 36 and shock absorbers 37 are attached to the connecting part between the right part 22a and the central part 22c of the second horizontal frame 22, and the connecting part between the left part 22b and the central part 22c of the second horizontal frame 22.

[0047] As described above, the upper arm 33, lower arm 34, knuckle and hub 35, suspension spring 36, shock absorber 37, etc. form a double wishbone type suspension mechanism.

[0048] (Configuration around the operation panel 14) 3, 4, and 5, a base member 38 is provided, and the control handle 15, the gearshift lever 16, the parking lever 17, and the switching lever 18 are attached to the base member 38. The base member 38 is attached to the lower portion 24b of the vertical frame 24.

[0049] As a result, the steering handle 15, the shift lever 16, the parking lever 17, and the switching lever 18 are attached to the support frame 20 (the lower part 24b of the vertical frame 24) via the base member 38, and are provided in front of the driver's seat 8 (see Figures 1 and 2).

[0050] 1 and 2, a synthetic resin operation panel 14 is attached to a support frame 20, and a steering wheel 15, a gearshift lever 16, a parking lever 17, and a selector lever 18 pass through openings in the operation panel 14 and protrude to the outside of the operation panel 14. As shown in FIG. 3, an accelerator pedal 39 and a brake pedal 40 are provided below the left portion of the operation panel 14.

[0051] The continuously variable transmission 13 is configured as a belt-type continuously variable transmission. When the rotation speed of the engine 12 increases as a result of depressing the accelerator pedal 39, the continuously variable transmission 13 is automatically operated to a higher speed. When the rotation speed of the engine 12 decreases as a result of releasing the accelerator pedal 39, the continuously variable transmission 13 is automatically operated to a lower speed.

[0052] The front wheels 1 are steered using a steering handle 15. The auxiliary transmission in the transmission case is operated to three forward speeds and one reverse speed using a speed change lever 16. The front wheel transmission is operated to four-wheel drive or two-wheel drive using a switching lever 18.

[0053] The vehicle is provided with brakes (not shown) capable of braking the front wheels 1 and the rear wheels 2, and the brakes are operated to a braking state by stepping on the brake pedal 40. After the brakes are operated to a braking state by the brake pedal 40, the brakes are maintained in the braking state by operating the parking lever 17.

[0054] (Configuration of auxiliary handle 19) As shown in Figures 2, 3, and 4, two auxiliary handles 19 are provided side by side in the left-right direction in the center and right portions (in front of the passenger seat 9) of the operation panel 14. The two auxiliary handles 19 are molded using the same mold and are configured to be the same size and shape. This allows two passengers to hold one auxiliary handle 19 in their own hands when they are seated in the passenger seat 9.

[0055] The operation panel 14 is abutted from behind (outside) against the third portion 23c of the third horizontal frame 23. The auxiliary handle 19 is abutted from behind (outside) against the third portion 23c of the third horizontal frame 23 on the outer surface of the operation panel 14.

[0056] With the operation panel 14 sandwiched between the third part 23c of the third horizontal frame 23 and the auxiliary handle 19, the third part 23c of the third horizontal frame 23, the operation panel 14 and the auxiliary handle 19 are fastened together and connected by a bolt 41. As a result, the operation panel 14 is attached to the third horizontal frame 23, and the two auxiliary handles 19 are attached to the third portion 23c of the third horizontal frame 23, aligned in the left-right direction.

[0057] (First Alternative Embodiment of the Invention) When the passenger seat 9 is configured as a passenger seat 9 that can seat one passenger, rather than a horizontally long bench seat, a plurality of passenger seats 9 may be provided side by side in the left-right direction.

[0058] (Second Alternative Embodiment of the Invention) The driver's seat 8 may be provided on the right side of the floor frame 4, and the passenger seat 9 may be provided on the left side of the driver's seat 8.

[0059] According to the above-described configuration, in the support frame 20, the vertical frame 24 is connected between the right portion of the first horizontal frame 21 and the right portion of the second horizontal frame 22. The third horizontal frame 23 is connected between the left vertical frame 24 and the left portion 5b of the ROPS frame 5. The steering handle 15 is attached to the vertical frame 24, and the steering handle 15 and the vertical frame 24 are provided in front of the driver's seat 8.

[0060] (Third Alternative Embodiment of the Invention) In addition to the driver's seat 8 and passenger seat 9, which are the seats in the front row, a rear seat (not shown) (corresponding to a seat) may be provided behind the driver's seat 8 and passenger seat 9. The rear seats may be configured as bench seats that can seat three or more passengers. Three or more rear seats, each capable of seating one passenger, may be arranged side by side in the left-right direction.

[0061] According to the above-described configuration, it is preferable that auxiliary handles 19, the number of which corresponds to the number of passengers who can sit in the rear seats, be arranged in a row in the left-right direction in front of the rear seats (behind the driver's seat 8 and passenger seat 9).

[0062] (Correspondence to claims)-1 It is equipped with running gear (front wheels 1 and rear wheels 2). The vehicle is provided with a body 3 to which running gear (front wheels 1 and rear wheels 2) is attached and supported by the running gear (front wheels 1 and rear wheels 2). A horizontally long seat (passenger seat 9) or multiple seats (passenger seats 9) are provided on the aircraft body 3 along the left-right direction and can accommodate multiple occupants.

[0063] A plurality of auxiliary handles 19 are provided in front of the seat (passenger seat 9) and can be held by the passenger sitting in the seat (passenger seat 9). A plurality of auxiliary handles 19 are provided lined up in the left-right direction. Each of the plurality of auxiliary handles 19 is configured to have the same size and shape. The vehicle is provided with a driver's seat 8 and a passenger seat 9 arranged side by side in the left-right direction on the body 3, and the seat (passenger seat 9) is the passenger seat 9.

[0064] (Correspondence to claims)-2 A first horizontal frame 21 is provided which is located at a position higher than the lower part (floor frame 4) of the body 3 and is connected along the left-right direction across the right part 5a and left part 5b of the body 3 which are forward of the driver's seat 8 and passenger seat 9. A second horizontal frame 22 is provided, which is located at a higher position than the first horizontal frame 21 and is connected along the left-right direction across the right part 5a and left part 5b of the body 3, which are forward of the driver's seat 8 and passenger seat 9. A vertical frame 24 is provided in front of the driver's seat 8 and connects the first horizontal frame 21 and the second horizontal frame 22 along the up-down direction. A steering handle 15 is attached to the vertical frame 24 and is used for steering.

[0065] (Correspondence to claims) - 3 A third horizontal frame 23 is provided which is connected in the left-right direction to the vertical frame 24 and is located in front of the driver's seat 8 and passenger seat 9 in the body 3 and extends between the right section 5a or the left section 5b of the body 3 on the passenger seat 9 side. An auxiliary handle 19 is attached to the third horizontal frame 23.

[0066] The third horizontal frame 23 has a first portion 23a connected to the vertical frame 24 and extending rearward, a second portion 23b connected to a portion of the right portion 5a or the left portion 5b of the body 3 on the passenger seat 9 side and extending rearward, and a third portion 23c connected in the left-right direction spanning the rear of the first portion 23a and the rear of the second portion 23b. The auxiliary handle 19 is attached to the third portion 23c. [Industrial Applicability]

[0067] The present invention can be applied not only to work vehicles with front wheels 1 and rear wheels 2, but also to work vehicles with front wheels 1 and rear crawler running devices (not shown), and also to work vehicles that do not have front wheels 1 and rear wheels 2 but have right and left crawler running devices. [Explanation of symbols]

[0068] 1 Front wheel (running gear) 2 Rear wheels (running gear) 3 aircraft 5a Right side 5b Left 8 Driver's seat 9 Passenger seat (seat) 15 Control handle 19 Auxiliary handle 21 First horizontal frame 22 Second horizontal frame 23 Third horizontal frame 23a Part 1 23b Part 2 23c Part 3 24 vertical frame

Claims

1. Running gear and a machine body to which the running device is attached and supported by the running device; a horizontally long seat or seats that are provided on the aircraft along the left-right direction and that can seat a plurality of occupants; a plurality of auxiliary handles provided in front of the seat and capable of being held by a passenger sitting in the seat; A work vehicle in which a plurality of the auxiliary handles are arranged side by side in the left-right direction.

2. 2. The work vehicle according to claim 1, wherein each of the plurality of auxiliary handles is configured to have the same size and shape.

3. A driver's seat and a passenger seat are provided on the aircraft body side by side along the left-right direction, The work vehicle according to claim 1 , wherein the seat is the passenger seat.

4. a first horizontal frame provided at a position higher than a lower portion of the body and connected along the left-right direction across right and left portions of the body forward of the driver's seat and the passenger seat; a second horizontal frame provided at a position higher than the first horizontal frame and connected along the left-right direction across right and left portions of the vehicle body forward of the driver's seat and the passenger seat; a vertical frame provided in front of the driver's seat and connecting the first horizontal frame and the second horizontal frame along the up-down direction; a steering handle attached to the vertical frame for steering operation; a third horizontal frame is provided which is connected along the left-right direction between the vertical frame and a portion of the right or left part of the body forward of the driver's seat and the passenger seat and on the passenger seat side, 4. A work vehicle according to claim 3, wherein the auxiliary handle is attached to the third horizontal frame.

5. the third horizontal frame has a first portion connected to the vertical frame and extending rearward, a second portion connected to a portion of the right or left portion of the body on the passenger seat side and extending rearward, and a third portion connected along the left-right direction across a rear portion of the first portion and a rear portion of the second portion, 5. The work vehicle according to claim 4, wherein the auxiliary handle is attached to the third portion.

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