JP3077014B2 - Work vehicle getting on and off device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work vehicle used for civil engineering work or agricultural work. A pair of booms are supported on the left and right sides of the vehicle body so as to be vertically swingable. And a work vehicle provided with a work attachment.

[0002]

2. Description of the Related Art A conventional work vehicle of this type is disclosed in Japanese Utility Model Laid-Open No. 4-105142 proposed by the present applicant. In this conventional work vehicle, when the driver outside the vehicle is seated on the driver's seat at the front of the vehicle body, the driver rides on the top of the attachment from the front of the attachment such as a bucket lowered on the ground and gets into the front of the vehicle body,
The reverse route was used to descend from the body to the ground.

[0003]

When the work vehicle is large, the work attachment is also large. For this reason, the height from the ground to the upper part of the attachment is increased, and it is difficult to put a foot on the upper part of the attachment. An object of the present invention is to make it easy to get on and off a driving seat provided on a vehicle body.

[0004]

According to the present invention, in order to achieve the above object, as shown in FIGS. 1 to 3, for example, a work vehicle getting on / off device is constituted as follows.

[0005] A frame cross member 31 is disposed in front of the driving seat 13 provided on the vehicle body 2 and connects the left and right frames 5 of the vehicle body 2. The frame cross member 31 is disposed in front of the frame cross member 31. The boom cross member 32 for connecting the left and right booms 22, the work attachment 26 provided at the distal end of the left and right booms 22, and the front end closer to the mounting position of the boom cross member 32. And a side step 37 projecting outward from the at least one boom 22 in the left-right direction.

[0006]

The present invention operates as follows, for example, as shown in FIGS. When the driver outside the vehicle is seated on the driver's seat 13, first, the user grips a grip portion such as the handrail 39, places one foot on the side step 37, and then attaches the attachment step 36 provided on the work attachment 26 to a boom. The passenger can get into the vehicle body 2 by sequentially passing through the boom step 35 provided on the vehicle cross member 32 and the frame step 34 provided on the frame cross member 31, and then can sit on the operation seat 13. Further, the driver can get down from the driving seat 13 to the ground G along a route opposite to the above.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a front perspective view of the work vehicle. FIG. 2 is a schematic diagram of the vehicle in a longitudinal side view. FIG. 3 is a perspective view of the same vehicle as viewed from the rear.

The work vehicle 1 is configured as a skid steer type to make a small turn. Its body 2
Is supported by left and right front tires 3 and rear tires 4 and includes a pair of left and right frames 5.5 extending in the front-rear direction and a boom support bracket 6 projecting upward from the rear of each frame 5. A cabin 8 is disposed at a front portion between the frames 5. Windows 10 opened on both side surfaces of the head guard 9 of the cabin 8 are covered with a wire mesh 11. Reference numeral 13 denotes an operation seat.

The left and right front tires 3 are connected to each other by two sets of hydraulic pumps, hydraulic motors, and chain type reduction gears (both not shown) housed below the cabin 8 in the front portion of the vehicle body 2. The rear tire 4 can be driven individually. The first lever 14 and the second lever 15 for operation are respectively provided on the left and right sides in the cabin 8.
(Here, only one side is shown.)

An engine room (not shown) is formed at the rear of the vehicle body 2 in an airtight manner between the left and right frames 5.5 and between the brackets 6,6. A rear cover 17 is provided on the rear wall of the engine room, and an upper cover 18 is provided on the upper wall. At the time of maintenance of the work vehicle 1, the rear cover 17 and the upper cover 18 are rotated via hinges 19 and 20, respectively, to open the rear portion of the vehicle body 2, and the cabin 8 is rotated upward and rearward. Open the upper front of the engine compartment. As a result, the engine and the attached equipment housed in the engine room can be easily accessed.

The cargo handling device of the work vehicle 1 is configured as a full rollback type. That is, L-shaped booms 22 extending in the front-rear direction are arranged on both outer sides of the cabin 8. A rear portion of each boom 22 is supported by a pivot pin 23 at a rear upper portion of each bracket 6. The boom 22 is vertically swung by a boom hydraulic cylinder 24. At the front of the booms 24, a bucket 26 serving as a work attachment is provided with a pivot pin 27.
Supported by. The bucket 26 is configured to be vertically swingable by a bucket hydraulic cylinder 28. Reference numeral 29 in FIG. 2 is a cargo handling operation pedal.

Next, a description will be given of the apparatus for getting on and off the work vehicle 1 with reference to FIG. In FIG. 2, the bucket 26 is switched to a state of being squeezed, the boom 22 is lowered, and the tip of the bucket 26 is grounded to the ground G. In the state shown in FIG. 2, the driving seat 13 and the frame cross member 31 for connecting the front portions of the left and right frames 5 and 5 and the boom cross for connecting the left and right booms 22 are connected. The member 32 and the bucket 2
6 are arranged in order.

A frame step 34 is provided on an upper surface of the frame cross member 31, a boom step 35 is provided on an upper surface of the boom cross member 32, and a bucket step 36 is provided on a bucket top 26a of the bucket 26. 36 are provided. Further, side steps 37 are respectively protruded from the outer surfaces of the booms 22 at positions closer to the tip than the mounting position of the boom cross member 32. The side surface step 37 is provided at a substantially intermediate height between the bucket step 36 and the ground G. Handrails 3 on the left and right sides of the front of the cabin 8
9.39 are provided.

When the driver outside the vehicle is seated on the driving seat 13 in the cabin 8, the driver first grasps the handrail 39 and places one foot on the side step 37, and then the bucket step 36 and the boom. Step 3 for
5 and the frame step 34 in order to get into the cabin 8 and then sit on the driving seat 13. Further, the driver can get down from the cabin 8 to the ground G along the reverse route.

The above embodiment can be modified as follows. The said side step 37 is the left and right boom 2
Instead of being provided on both 2 and 22, it may be provided on only one of the booms 22. The height position where the above-mentioned side surface step 37 is attached may be any position between the bucket step 36 and the ground G,
The height may be set to a value that facilitates getting on and off according to the model of the work vehicle 1 and the size of the bucket 26. The side surface step 37 may be one that protrudes outward from the boom 22 in the left-right direction. Instead of being fixed to the side surface of the boom 22, it is fixed to the front surface or the rear surface of the boom 22. May be done.

The work attachment may be another type of attachment such as a fork instead of the bucket. The work vehicle to which the present invention is applied is not limited to a skid steer type vehicle, but may be another type of vehicle.

[0017]

The present invention has the following effects because it is constructed and operates as described above. The driver can get on the vehicle body by putting his foot on the side steps, the work attachment, the boom cross member, and the frame cross member in order from the ground, and can get down from the vehicle body to the ground by the reverse route. In this way, the driver does not need to greatly raise or lower the foot by placing his foot on the side step between the ground and the attachment, and can easily get on and off the driver's seat.

[Brief description of the drawings]

FIG. 1 is a front perspective view of a work vehicle according to the present invention.

FIG. 2 is a schematic view of the work vehicle in a longitudinal side view.

FIG. 3 is a schematic rear view of the working vehicle of the above.

[Explanation of symbols]

2 ... body, 5 ... frame, 13 ... driving seat, 22 ... boom, 26 ... work attachment (bucket), 31 ...
Cross member for frame, 32 ... Cross member for boom, 3
7: Side step, G: Ground.

Claims (1)

(57) [Claims] 1. Left and right frames (5) (5) of a vehicle body (2) which are arranged in front of an operation seat (13) provided on the vehicle body (2).
And a left and right boom disposed in front of the frame cross member (31).
(22) Cross member for boom (32) connecting (22) with each other
And a work attachment (26) provided at the tip of the left and right booms (22) and (22), and at least one boom (2) at a position closer to the tip than the attachment position of the boom cross member (32). 22. A work vehicle getting on / off device, comprising: a side step (37) protruding outward in the left-right direction from (22).