JPS6050079A - Cabin of agricultural tractor - Google Patents

Abstract

PURPOSE:To make the easy and quick inspection and disassembly of various parts of a tractor body possible by a structure wherein a cabin frame is stacked and detachably fixed to a safety frame. CONSTITUTION:A cabin frame 4 is stacked and detachably fixed to a safety frame 3. Normally various works are performed under the state of the frame 4 being stacked and fixed. Because vibro-isolating members 2 and 2 are interposed between the safety frame 3 and a tractor body 1, neither vibration nor noise is developed during running. Even if by any chance a turning-over accident or the like occurs, the safety frame 3 supports the tractor body 1 in the scarcely deformed conditions, resulting in ensuring the safety of a driver. When the maintenance and inspection of the tractor body 1, especially of a hydraulic case 20 part and transmission case parts 8 and 9 is intended, the cabin frame 4 can be detached in order to facilitate said maintenance and inspection.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the cabin of an agricultural tractor, and aims to facilitate the attachment and detachment of the cabin frame that partitions the driver's cab from the outside world, thereby making inspection and disassembly of each part of the tractor body easier and faster.

Because agricultural tractor work involves falling accidents, the framework of the cabin is strongly constructed and heavy. A cabin is constructed by adding a glass panel, a top plate, a door, etc. to separate the inside and outside. By the way, when disassembling and inspecting the hydraulic pressure outlet or the transmission case, it is necessary to remove the heavy cabin, which increases time and man-hours.

The present invention is intended to solve the above-mentioned drawbacks by making it possible to separate the cabin from the framework portion and the above-mentioned partition member. For this reason, the present invention has taken the following technical measures. That is, a safety frame (3) is erected on the body (1) of an agricultural tractor via a vibration isolating member (2), and this safety frame (3)
The cabin of the agricultural tractor is constructed by attaching and removably superimposing the cabin frame (4).

An embodiment of this invention will be described based on the drawings.

(1) is the body of an agricultural tractor, and the engine frame (7
), front and rear transmission cases (8) (ill, etc.) are made into rigid bodies.The engine driving force is transmitted to the rear wheels (
10QC) (to OiJ wheel Qυ(11)) and a power take-off shaft (not shown).

The above-mentioned front and rear mission cases (8) (9J) have a steering handle (2), a cockpit 03, a group of various levers, etc. on the top.

(3) is a safety frame that is erected to surround the above-mentioned cockpit, etc., and is made up of a pair of front and rear supports and their connecting parts.
Similarly, the canopy support column (3b) is supported in a vibration-proof manner on the upper part of the rear axle case α by means of a vibration-proofing member (2).

(4) is the cabin frame, in order to form the cockpit space, the front and rear windshields αQ Q6, the opening/closing door α force, and the top plate α8
), a fender for the rear wheel, etc. This cabin frame (4) can be formed from a glass plate, a thin iron plate, a resin plate, or the like.

This cabin frame (4) overlaps the above-mentioned safety frame (3) in a mapped shape and is removably fixed by bolting or the like as appropriate.

On the lower front side of each of the above pairs of front struts (3-) is a body (5C).
L) is fixed, and on the other hand, a cylinder (5b> having the same shape as the cylinder (5ω) is also provided in the front lower part of the cabin frame (4). They are joined using a removable fulcrum bottle (5C).For this reason, the cabin frame (
4) is configured to be rotatable around the hinge (5) with respect to the safety frame (3), and the rear portion thereof is lifted significantly upward.

(6) is linked to the hydraulic cylinder mechanism of the hydraulic case and rotates up and down. The work machine lift arm ■υ is a lift arm whose one end is connected to the end of the lift arm (6) and the other end is connected to a work machine connection link (not shown) to move the work machine up and down. In this embodiment, the other end of the lift rod υ is connected to the cabin frame (4).
) can be rotated about the center of the hinge part (5) using hydraulic pressure.

In the above structure, the usual structure is to fix the cabin frame (4) overlappingly to the safety frame (3) in preparation for various types of work. In particular, while driving, a vibration isolation part (21 (2)) is interposed between the safety frame (3) and the machine body (1) to prevent vibration and noise from occurring. Therefore, the safety frame (3) can support the fuselage (1) in a completely undeformed state, and the safety of the passengers inside the safety frame (3) can be ensured.

When maintaining and inspecting the aircraft (1), use the cabin frame (4)
It is convenient to remove this from the safety frame (3). That is, since the cabin frame (4) is composed of partition members such as glass, doors qη, and other thin plates, the cabin frame (4) is particularly sensitive to the hydraulic case (2), partial transmission case (8), and (9).
It becomes difficult to maintain and inspect the parts from outside the driver's cabin, and to solve this problem, it is better to remove the cabin frame (4) and leave only the safety frame (3) alone.

Generally, a rigid frame for ensuring safety and a partition member such as glass are usually constructed as one piece, and the cabin tends to be heavy due to the rigid frame when being attached or detached. However, with the configuration in which the safety frame (3) and the cabin frame (4) can be separated like this, the cabin frame (3) and cabin frame (4) can be separated. The frame (4) can be made lighter and the vibration isolating member (2) (2) can be simply installed between the fuselage and the safety frame (3), eliminating the need for elaborate attachment and detachment. This makes maintenance and inspection work easier.

In addition, the cabin frame (4) and safety frame (3) of this example
There is a hinge (5) between the hydraulic case (5), which allows the cabin frame (4) to be rotated significantly forward using the upward rotation of the lift arm (6), without completely removing the hydraulic case ( 2
) It is very convenient to perform maintenance and inspection of other parts.

Since this invention has the above configuration, it has the following technical effects. That is, cut the cabin frame and safety frame.
Since the cabin frame is constructed separately and is located between the entire cabin frame and the tractor body, it also has the vibration isolation function of the cabin frame, so it is extremely easy to remove the cabin frame from the safety frame. This allows quick maintenance, inspection, and maintenance.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a side view of a part thereof, Fig. 6 is a side view of the cabin frame, Fig. 4 is a rear view, and Fig. 5 is a side view of the cabin frame. The figure is a perspective view of the hinge section. In the figure, (1) is the fuselage, (2) is the anti-vibration member, (3) is the safety frame, (4) is the cabin frame, (5) is the hinge, (6) is the
) (6) indicates the lift arm. Patent applicant name: Iseki Agricultural Machinery Co., Ltd. Representative: Masaaki Iseki Figure 5

Claims (3)

[Claims] (1) A safety frame (3) is erected on the body (1) of the agricultural tractor via a vibration isolating member (2), and a cabin frame (4) is attached and fixed to the safety frame (3) in a removable manner. The cabin of an agricultural tractor. (2) A hinge (5) is provided between the safety frame (3) and the cabin frame (4), and the cabin frame (4) is rotatable with respect to the safety frame (3). The cabin of the agricultural tractor described in item 1. (3), lift arm (6) (6) and cabin frame (4)
2. A cabin for an agricultural tractor according to claim 2, wherein a connecting member is removably provided between the cabin frame (4) and the cabin frame (4).