JPH09109938A - Tractor cabin attachment / detachment device - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To simplify attachment and detachment of a tractor cabin. A structure of a tractor cabin attachment / detachment device having support legs 3 that support an end portion of a cabin frame 2 with respect to a floor surface and move up and down by propulsion of a vehicle body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tractor cabin attaching / detaching device for attaching / detaching a cabin to / from a tractor vehicle body.

[0002]

2. Description of the Related Art In many cases, a tractor vehicle body has a mission case as a main constituent part of the vehicle body, and a cabin is mounted and supported by a bracket or the like on a part of the mission case. . Therefore, if there is a problem inside the mission case,
It is necessary to remove the cabin, and it is difficult to perform maintenance with simple equipment and operations. When attaching or detaching the cabin to or from the tractor body, the cabin is lifted by a crane.
Special crane equipment is required, and the place for attachment / detachment is limited.

The present invention makes it possible to lift the cabin on the vehicle body with simple equipment and operation without requiring special equipment.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a tractor cabin attaching / detaching device having a support leg 3 which supports an end portion of a cabin frame 2 with respect to a floor surface and which is vertically moved by propulsion of a vehicle body 1. And

[0005]

When the cabin mounted on the tractor vehicle body 1 is removed, the end of the cabin frame 2 is unfixed from the bracket for mounting and supporting the tractor vehicle body 2 and is tilted and supported on the floor surface. The upper ends of the supporting legs 3 are connected. In this state, by propelling the tractor vehicle body 1 by driving the engine of the tractor vehicle body itself, the support legs 3 are erected from the inclined state, and the front portion of the cabin frame 2 is moved to the vehicle body 1 side.
Is raised to a certain height from the mounting surface against.

In this way, the attachment and detachment of the tractor cabin is
By supporting the front portion of the cabin frame 2 on the floor surface with the support legs 3, the cabin body 2 can be lifted and lowered by the propulsive force of the vehicle body 1, the configuration operation is simple, and no special large-scale equipment is required. Can be attached to and detached from 1.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tractor vehicle body 1 includes a front body of an engine E, a clutch housing 7, a front mission case 8, a rear mission case 9, and a transmission case 4 such as left and right rear axle housings 10, which are integrally formed. The front axle bracket 11 is provided in the front part of the engine E, and the front axle housing 12 is installed in the lower part. The steering handle 13 operates the left and right ends of the front axle housing 12. It has a front wheel 14 that can move freely. or,
Rear wheels 15 are provided at the outer ends of the rear axle housing 10.
Having. The front wheels 14 and the rear wheels 15 are the engine E.
Is driven and rotated by four-wheel drive to allow four-wheel drive traveling.

Reference numeral 16 is a hood that covers the upper portion of the engine E, 17 is a dashboard, 18 is a fender, and 19 is a cockpit. Reference numeral 20 denotes an integral hydraulic case at the upper part of the mission case 4, a lift arm 21 that is vertically rotated by a hydraulic cylinder is provided at the rear part, and is connected by a lift rod 22 to a lower link 23 that is connected to the rear part of the mission case 4, A working machine such as a rotary tiller connected to the rear ends of the lower link 23 and the top link can be moved up and down.

The cabin frame 2 covers the steering handle 13 from the cockpit 19. The bottom of the cabin frame 2 includes the left and right fenders 18, a seat floor 24 extending between the left and right fenders 18, and an upper surface of the seat floor 24. The driver's seat 19 and the like are mounted, and the mounting brackets 25 are provided at the lower front ends on both the left and right sides, and the damper 2 is provided between the supporting brackets 26 protruding on the left and right sides of the clutch housing 7.
It can be mounted by interposing 7 therebetween. or,
A mounting bracket 28 is provided at the lower rear end on both the left and right sides, and a damper 29 can be interposed between the rear axle housing 10 portion of the transmission case 4 and the integral support bracket 5 to be supported and mounted.

Further, the cabin frame 2 has transparent glass windows 30 and 31 in the front and rear, openable and closable glass doors 32 on both left and right sides, and is constituted by an upper roof 33 and the like. A support pin 34 projecting laterally outward from the mounting bracket 25 is provided near the front mounting bracket 25 portion of the cabin frame 2. The support pin 34 has a triangular support leg 3 top 35 in a side view. Support to rotate freely. The height of the support leg 3 is set to be appropriately higher than the upper end positions of the support bracket 26 and the damper 27 of the vehicle body 1 by the height H.

Further, a lever pin 37 is provided on the outer side of the mounting bracket 28 at the rear of the cabin frame 2, and a pin hole of a lever rod 6 which is vertically rotated around a lever shaft 36 integral with the bracket 5 is fitted therein. sell. The lever 6 is configured to be rotatable about the lever shaft 36 in the lateral direction with respect to the support bracket 5 mounted on the rear axle housing 10. Lever 6
Is provided with a pin hole through which the lock pin 38 is inserted. By inserting the lock pin 38 between the lever rod 6 and the pin hole on the support bracket 5 side, the raised position of the lever rod 6 can be fixed. . The rising height of the lever 6 is set to be substantially the same as the above H.

Mounting brackets 25, 28 on the front and rear of the cabin frame 2, a support bracket 26 on the vehicle body 1 side,
5 and the dampers 27 and 29 between them have vertical mounting bolts 39 and 40 inserted, but when the cabin frame 2 is removed, these mounting bolts 39 and 40 are removed beforehand. Or, it should be in a state where it can be removed.

The lever bar 6 may be integrally formed so that the pair of left and right mounting brackets 28 can be simultaneously moved up and down, but the lever bar 6 may be operated separately for each of the left and right sides. When removing the tractor cabin, the tractor vehicle body 1 is moved to a flat floor surface and stopped. Remove the bolts that secure the cabin frame 2 to the vehicle body 1. In the illustrated example, the mounting bolt 39 between the mounting bracket 25 and the support bracket 26, the mounting bolt 40 between the mounting bracket 28 and the support bracket 5, and the like are removed.

In this state, the front support pin 34 supports the top 35 of the support leg 3. At this time, since the supporting leg 3 is higher than the supporting pin 34 by H, the supporting leg 3 is inclined to the front side. In this state, the supporting legs 3 are kept in a state where they do not rise above the floor surface, and when the vehicle body 1 is gradually advanced by the drive of the engine E, the supporting legs 3 are erected on the floor surface by this propulsive force, and the cabin frame The front part of No. 2 is raised H, and the mounting bracket 25 is largely separated above the support bracket 26.

When the front part of the cabin frame 2 is lifted in this way, the propulsion of the vehicle body 1 is stopped and the rear part is lifted by the lever 6. The lever 6 is a lever shaft 36 of the bracket 5.
The shaft hole is fitted into the lever pin and the pin hole at the tip end is fitted into the lever pin 37. By rotating the lever 6, the mounting bracket 28 portion is raised and separated above the damper 29 and the support bracket 5. In this state where the cabin frame 2 is raised, the cabin frame 2 is fixed by the lock pin 38, so that the maintenance of the mission case 4 can be easily performed.

3 and 4, the difference from the above example is that
The lever rod 6 is fitted to the support column 42 at the corner of the seat floor 24 which is a part of the cabin frame 2 to attach the bolt 41.
When the cabin frame 2 is detached from or mounted on the vehicle body 1, it is replaced with the lever shaft 36 and the lever pin 38 and used as a lever. In addition, the front floor step 43 of the cabin frame 2 is also integrally formed with the rear seat floor 24, and a hook-shaped outrigger is provided along the front edge 44 and the side edge 49 of the floor step 43. It is used as the support leg 3. The support leg 3 is made of a square pipe material, has a hook shape, and has an upper side portion 50.
Can be inserted into the front edge portion 44 of the floor step 43, and can be freely moved in and out to fix the position with the pin 45. Further, the lower side portion has expandable and contractible legs 47 extending downward, and the expandable position can be fixed by a pin 48.

When the support leg 3 is used, the lower side portion 46 is attached so that the lower side portion 46 faces downward. When the support leg 3 is not used, the lower side portion 46 is arranged along the side edge portion 49 of the floor step 43. It is stored. Also, when using the support legs 3, it is preferable to use a jack for supporting the cabin frame 2.

5 and 6 are different from the above example in that
In the cabin room 51 of the cabin, the pilot seat 1
9. An air bag 52 that can be wrapped on both left and right sides above
The airbag 52 is wrapped by an impact or the like when the vehicle body 1 rolls over (A), and supports the head of the operator from the left and right for safety. Airbag 52
Are arranged near the glass doors 32 on both left and right sides of the roof 33, and are interposed between the glass doors 32 from the operator's head to both shoulders by wrapping.

[Brief description of the drawings]

FIG. 1 is a side view showing an operation of attaching and detaching a cabin.

FIG. 2 is a side view of the tractor.

FIG. 3 is a perspective view of a lever portion showing another embodiment.

FIG. 4 is a perspective view of a front portion of a cabin frame.

FIG. 5 is a side view of a tractor cabin showing another embodiment.

FIG. 6 is a plan view thereof.

[Explanation of symbols]

 1 vehicle body 2 cabin frame 3 support legs 4 mission case 5 bracket 6 lever

Claims (1)

[Claims] 1. A tractor cabin attachment / detachment device comprising support legs 3 for supporting an end of a cabin frame 2 against a floor surface by moving a vehicle body 1 and moving the same up and down.