JPS63162381A - Tractor cabin - Google Patents

Abstract

PURPOSE:To ensure the easy mounting of a synthetic resin cabin and improve the rigidity thereof by forming vertical front legs at right and left front ends of the cabin and using the lower ends of a metal arch type frame at the rear end of the cabin as rear legs. CONSTITUTION:In a cabin 1 so fitted to an agricultural tractor as to be freely detachable, the cabin proper is made of molded FRP and front legs 2 and 2 are extended downward monolithically from the right and left front ends of the overhead 16 of said cabin 1. Also, synthetic legs 17 are extended vertically from the right and left rear ends of the overhead 16 of the cabin 1, and a metal frame 3 of arch type is provided, extending from the rear end of the overhead 16 to the inner side of the legs 17. And both lower ends of the frame 3 are functioned as rear legs 4 and 4. And the cabin 1 is mounted in such a way that the rear legs 4 and 4 are inserted in mounting holes 14 and 14 on rear wheel fenders 10, and the front legs 2 and 2 are inserted in the mounting holes 15 and 15 on foot covers 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tractor cabin that is disposed and attached to a position above a control section of a tractor.

[Conventional technology]

Generally, the cabin attached to this type of tractor is constructed by processing a rigid metal plate, and when attaching this cabin to the tractor, the cabin is installed vertically on the front left and right sides and the rear left and right sides of the cabin. The front and rear legs are inserted into mounting holes provided at the front and rear of the tractor, respectively, and fixed.

[Problem that the invention seeks to solve]

However, according to the above configuration, if there is an error in the positional accuracy between each leg of the cabin and the mounting hole of the tractor due to manufacturing error of each member, the leg of the cabin may flex and deform. This has the drawback that the legs cannot be easily installed in the mounting holes of the tractor, and each leg of the fuselage is formed with a slightly larger diameter than the mounting holes, so the mounting holes cannot be easily installed. If there was a gap between the cabin and each leg of the cabin, the cabin would wobble when attached to the aircraft.

The present invention has been made focusing on the above-mentioned circumstances, and
To provide a tractor cabin in which the cabin can be attached to the fuselage without any trouble even if there is a dimensional error between a mounting hole provided in the fuselage and each leg of the cabin, and the cabin can be attached without rattling. The purpose is to

[Means for solving problems]

That is, the characteristic configuration of the tractor cabin according to the present invention is that the front legs are vertically hung downward on the left and right sides of the front end of the cabin formed of a synthetic resin molded product, and the rear end of the cabin is made of a metal material. An arch-shaped frame is provided, and both lower ends of the arch-shaped frame are used as rear leg parts, and its function and structure are as follows.

[For production]

The cabin is made of synthetic resin molding, so
The distance between the front legs, which are hung vertically on the left and right sides of the front end of this cabin, and the rear legs, which are hung vertically on the left and right sides of the rear end, can be slightly changed depending on the flexural deformability of the cabin itself. Therefore, when installing this cabin on a tractor, Even if there is some error in the positional accuracy between the mounting holes on the tractor and the legs of the cabin, the position of the lower part of at least one leg should be bent toward the mounting hole as described above. Furthermore, by moving the legs, each leg can be inserted and attached into the attachment hole of the tractor without any trouble. Furthermore, when each leg is elastically deformed and inserted into the attachment hole, the lower end of the leg comes into elastic contact with the inner edge of the attachment hole.

〔Effect of the invention〕

As a result, dimensional accuracy between each leg of the cabin and the mounting hole in the fuselage is not required so much, making it possible to improve the work efficiency of assembling the cabin, and also making it possible to attach the cabin to the fuselage without rattling. Became. Furthermore, the rear end of the cabin is equipped with a metal arch-shaped frame, which increases the rigidity of the cabin and protects the control section, even though the cabin is made of synthetic resin molding. . In particular, by attaching the cabin to the aircraft in a bent state, it is possible to attach it to the aircraft with stress applied to the cabin, and even though the cabin is formed from a synthetic resin molded product, the overall rigidity of the cabin is It is now possible to protect the control section by increasing the

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 1, the cabin (1) according to the present invention includes:
It is removably attached to an agricultural tractor, and first the general structure of this tractor will be explained.

The tractor has an engine (F,) mounted on the front of the machine.
Mission case (6) with this output installed at the rear of the aircraft
It is configured as a four-wheel drive type in which power is transmitted to the front wheels (23) and rear wheels (24) via the four-wheel drive type.

In the figure, (26) is the bonnet that covers the engine (E), (
27) is the instrument panel, and (28) is the cockpit. Axle cases (7) provided on both sides of the mission case (6)
) and (7), a support frame (5) for mounting the cabin (1) is fixed upright, and the upper end of this support frame (5) has a U-shaped cross section with an open top. (8) is provided. Rear wheel fenders (10) are provided on both sides of the seat mounting portion (9) on which the pilot seat (28) is mounted.
A seat frame (11) formed by integrally extending the transmission case (6) is disposed above the transmission case (6), and the fender (10) is connected to the rear wheel (24).
) is located above the Then, the mounting part (
8), a mounting hole (14) is bored in the fender (10). Additionally, the instrument panel (27)
An arch-shaped stay (13) is fixed to the front edge of the arch-shaped stay (13), and a locking hole (29) is bored in the upper surface of the arch-shaped stay (13), and a mounting hole (15) is bored in the foot cover (12). ) is provided.

On the other hand, the main body of the cabin (1) is made of FRP (glass fiber reinforced plastic molded product).
From the front end left and right of the ceiling part (16) of the front leg part (2),
(2) are integrally hung downward, resin legs (17) are integrally hung from the left and right of the rear end of the ceiling (16) of the cabin (1), and the ceiling ( 1
As shown in FIG. 2, an arch-shaped frame (3) made of a metal material is fixed to the rear end edge of the frame (6) and the inner surface of the resin leg (17) with a bracket (30). Both lower ends of this arched frame (3) are connected to rear leg parts (4).

(4).

Now, in order to attach the cabin (1) configured as described above to the tractor, the fender (10)
Insert the rear leg (4) of the cabin (1) into the mounting hole (14) drilled in the mounting hole (14) and lock it with the locking piece (20) as described later. 2) into the mounting hole (15) of the foot cover (12), and a locking pin (3) protruding downward from the front edge of the cabin (1).
I] into the locking hole (
29) It is inserted and locked inside.

As shown in FIG. 3, an opening (18) is provided on the side surface of the mounting portion (8), and this opening (18)
A locking piece (20) from which a locking portion (19) can protrude and retract is disposed in a state where the locking piece (20) is urged to protrude by a spring member (25),
Further, a locking hole (22) is provided at the lower end of the rear leg (4), so that when the rear leg (4) is inserted into the mounting hole (14), the rear leg (4) is locked. A locking piece (20) inside the locking hole (22)
The locking portion (19) is elastically inserted and locked.

Below the mounting hole (15) of the foot cover (12), as shown in FIG. A piece (2)
1) is provided, and the front leg (1) of the cabin (1) is provided.
2) into this mounting hole (15), then insert the engaging piece (2) into the mounting hole (15).
1) is rotated from the front of the foot cover (12) to protrude the engagement pin (34) from the lower end of the front leg (2).
By engaging the engagement recess (35) of the front leg (
2) is securely attached to the foot cover (12).

As described above, it is possible to protect the cockpit (28) with the metal arch frame (3) while reducing the weight of the cabin (1), and the installation of the cabin (1) is easy. The cabin (1) can be attached to the tractor without rattling. The cabin (1) configured as described above is detachably attached to the tractor, and when the cabin (1) is removed from the tractor, the rear leg (4) of the cabin (1) is is the operating part (3) of the locking piece (2o).
6) with a finger to release the locking part (19), the rear leg part (4) is pulled up, and in the front leg part (2), the retaining piece (21 ) is rotated to release the locking piece (21) from the locking pin (34), and then the front leg (2) is pulled up. Also, when the cabin (1) is not attached to the aircraft, the mounting hole (
14) is fitted with a synthetic resin cap (38).

[Another example]

In the above embodiment, a metal arch-shaped frame (3) is attached to the rear end of the synthetic resin cabin (1) (30).
However, this arched frame (
3) may be integrally molded on the rear end portion of the resin cabin (1).

[Brief explanation of the drawing]

The drawings show an embodiment of a tractor cabin according to the present invention, in which Fig. 1 is an overall perspective view of the cabin in an exploded state, Fig. 2 is a cross-sectional view of the rear leg, and Fig. 3 shows how the rear leg of the cabin is attached. FIG. 4 is a cross-sectional view showing the installation of the front leg of the cabin, and FIG. 5 is a longitudinal cross-sectional rear view of the main part. (1)...cabin, (2)...front leg, (3)...arched frame, (4)...
...The hind legs.

Claims (1)

[Claims] A front leg part (2) is hung downwardly on the left and right sides of the front end of a cabin (1) formed of a molded product of synthetic resin, and an arch-shaped frame ( 3) Provide this arched frame (3)
A tractor cabin whose lower ends are respectively rear leg parts (4) and (4).