JPH082051Y2 - Cabin attachment / detachment structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a structure for attaching and detaching a cabin, and more particularly to a structure for attaching and detaching the entire cabin to and from a vehicle body such as a tractor.

[Conventional technology]

Taking a tractor as an example, as a structure having a structure for attaching and detaching the entire cabin to and from the vehicle body,
There is one shown in 08667 publication, and in this reference,
Engaging pieces that project downward are formed on the front left and right sides and the rear left and right sides of the cabin, and a fitting connecting portion that fixes these engaging pieces in the inserted state is formed on the vehicle body side. A structure for attachment / detachment is configured, and in this structure, when attaching / detaching the cabin, the entire cabin is moved in the vertical direction.

[Problems to be solved by the device]

However, in the case of the structure in which the entire cabin is moved up and down at the time of attachment and detachment as in the above-mentioned reference, when the cabin is mounted on the vehicle body, the position of the cabin with respect to the vehicle body is accurately set, that is, the example of the above-mentioned reference example. For example, with respect to the upper positions of the plurality of connecting parts on the vehicle body side, with the relative positional relationship set so that all the engagement pieces on the cabin side are positioned, the cabin is lowered so as not to disturb the posture of the cabin. By doing so, it becomes possible to mount the cabin, which leads to heavy labor on the worker when mounting, and after mounting, it is necessary to prevent the cabin from coming off above all the connecting parts. The need arises.

Further, in the structure in which the disconnection prevention is performed at all the connection parts in the mounted state, it is necessary to release the disconnection prevention state at all the connection parts when removing the cabin, which is troublesome.

Therefore, by providing a hook on either the vehicle body side or the cabin side and an engaging rod on the other side, when attaching or detaching the cabin, the cabin and the vehicle body are in contact with each other in the horizontal direction. It is conceivable that the hook is engaged with the engaging rod or the engagement is released to reduce the labor during attachment / detachment.
With this attachment / detachment structure, if a strong force is applied to the mounted cabin in the horizontal direction, the cabin may be disconnected from the vehicle body, and there is room for improvement.

An object of the present invention is to reasonably configure a cabin attachment / detachment structure that does not require heavy labor on an operator during attachment / detachment, and that can be firmly connected without much trouble during attachment / detachment. .

[Means for solving the problem]

The feature of the present invention is that it engages with the engagement piece provided on the rear portion of the cabin in the mounted posture to prevent the rear portion of the cabin from moving upward with respect to the vehicle body, and by setting the front portion of the cabin to the detached posture, The vehicle body is provided with an engagement member that releases the engagement with the engagement piece and allows the rear part of the cabin to move upward with respect to the vehicle body. The position regulating mechanism is fitted in the vertical direction in a state where the cabin is set in the mounting posture. To
It is provided between the engaging piece and the member connected to the engaging member, and the action and effect thereof are as follows.

[Action]

If the above features are configured as shown in FIGS. 5 to 9, for example, when the cabin (C) is mounted on the vehicle body, the rear portion of the cabin (C) is engaged with the rear portion in a posture in which the front portion is lifted. By engaging the vehicle body with the mechanism (A) and then moving the front portion of the cabin (C) downward, the rear engagement mechanism (A) reaches a state in which the rear portion of the cabin is prevented from moving upward. At the same time, the front part of the cabin reaches a position where the front connecting mechanism (B) can be connected, and the front connecting mechanism (B) prevents the front part of the cabin from being lifted, whereby the connection is completed.

Further, when the front portion of the cabin (C) is moved downward as described above, the position regulating mechanism (D) including the lock pin (25) and the lock ring (24) naturally reaches the fitted state. Therefore, the horizontal movement of the engagement member (14) and the engagement piece (15) connected to the lock pin (25) and the lock ring (24) is prevented.

Further, when the cabin (C) is removed, the reverse operation to the above is performed.

In other words, in this structure, the cabin can be attached and detached by simply connecting or disconnecting the front portion of the front or rear portion of the cabin, and the cabin (C) can be attached to or removed from the vehicle body. In addition, since the rear part of the cabin can be supported on the side of the vehicle body, the operator can perform the attaching / detaching operation of the cabin (C) with a light effort as compared with the labor required to lift the entire cabin, and the cabin (C) can be attached to the vehicle body. It is not necessary to set the rear engagement mechanism (A) and the front coupling mechanism (B) to the engaged state and the coupled state at the same time when the cabin (C) is mounted. Even if an external force is applied to the cabin (C) in the horizontal direction, the position regulating mechanism (D) prevents the position displacement between the cabin (C) and the vehicle body.

[Effect of device]

Therefore, the attachment / detachment structure of the cabin can be reasonably configured so that the worker is not required to perform heavy labor when attaching / detaching, and the attachment / detachment can be firmly connected with little effort.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, a bonnet (3) that houses an engine, a radiator (not shown) and the like is provided in the front part of a vehicle body having front and rear wheels (1) and (2), and left and right rear fenders ( 4) and (4), a driver's seat (5) is arranged, a meter panel (6) and a steering handle (7) are provided in front of the driver's seat (5), and a cabin (C) is further installed. Prepare an agricultural tractor.

As shown in FIGS. 1 and 2, the cabin (C)
Has an internal space that extends from the position where its front part straddles the rear part of the bonnet (3) to the rear part position of the left and right rear fenders (4), and this cabin (C) is arranged from the front part to the ceiling part. Left and right pair of pipe materials (8), (8)
And the pipe wall (8), a ceiling wall member (9) that is continuously provided at the rear part of the pipe (8), left and right side wall members (10), (10), a rear wall member (11) The doors (12) and (12) form a basic part, and the cabin (C) is detachably attached to the vehicle body through a structure described below.

That is, as shown in FIGS. 3 and 4, between the rear portion of the cabin (C) and the rear fender (4), the upward movement of the rear portion of the cabin in the mounted posture is prevented, and the front portion of the cabin is prevented. A rear engagement mechanism (A) is provided that allows the rear part of the cabin to be disengaged from the vehicle body by being set to the detached posture by lifting, and the front part of the cabin (C) and the front part of the step (13) of the vehicle body. In between, there is provided a front coupling mechanism (B) capable of switching between a state in which the cabin front is prevented from being lifted upward and a state in which the cabin is allowed to be lifted in the mounting posture.

As shown in FIGS. 5 to 7, the rear engagement mechanism (A) includes a laterally-oriented engagement pin (14) provided at upper surface positions of the left and right rear fenders (4) and a cabin (C). ), Which is provided on the lower surface of the left and right composition, and has an engaging bracket (15) (an example of an engaging piece) having a concave portion (15a) for engaging, and the engaging pin (14) The (engagement member) is supported by a cylindrical holder (17) via a rubber member (16), and the holder (17) is supported by a support member (18) and a fitting member (19) on the vehicle body. The bracket (20) is supported by the side bracket (20), and the bracket (20) is further connected to a pillar member (22) extending upward from the rear axle case (21).

Further, the engagement bracket (15) includes bolts (23) and (23).
The cabin (C) is connected to the cabin (C) so as to be adjustable in position in the front-rear direction, and the cabin (C) is set to the mounting posture at the front position of the coupling piece (15b) of the engagement bracket (15). By doing so, a lock pin (25) is provided which is fitted into the lock ring (24) of the support member (18) to prevent the cabin (C) from moving in the horizontal direction.

The lock ring (24) and the lock pin (25) are collectively referred to as a position regulating mechanism (D).

As shown in FIG. 8 and FIG. 9, the front connecting mechanism (B) includes a front vertical wall portion (13a) of left and right steps (13).
Engagement rod (26) protruding upward at the upper surface position of the
And a connecting member (27) that is provided at the left and right front positions of the cabin (C) and that engages with the small diameter portion (26a) of the engaging rod (26), the main portion is configured, and the engaging rod (26) The step (1) by tightening the nut (29) so that the member on the upper surface of the front vertical wall (13a) is sandwiched by the elastic members (28), (28).
3), and the connecting member (27) is installed in the frame member (30) which is connected in a horizontal position with respect to the lower position of the pipe member (8) of the cabin (C) and its engagement The end on the side is fitted into the slit of the tubular member (31) into which the engaging rod (26) is inserted from the side, and the end on the non-engaging side is provided with the spring (32), which is connected. When performing, the front portion of the cabin (C) is pressed downward so that the tip tapered surface (26b) of the engagement rod (26) displaces the coupling member (27) in the non-engagement direction. After that, the spring (3
The connection is automatically made by the urging force of 2), and conversely, when releasing the connection, the operation part (27a) formed on the connection member (27).
The connecting member (27) is artificially operated in the non-engaging direction via the.

In this cabin (C), the windshield (3) is sandwiched between the pair of left and right pipe members (8), (8).
3) is provided, an upper wall (34) that can be released upward is provided between the upper portion of the windshield (33) and the ceiling wall material (9), and left and right side wall materials (10), ( Side glass (35), (35) is installed in 10) and left and right doors (1
2) and (12) are provided with wind glass (36).
Further, the rear wall member (11) is provided with a rear glass (38) in a suspended state via a hinge (37).

Further, as shown in FIGS. 2 and 8, on the lower surfaces of the frame members (39) and (39) provided from the lower ends of the pipe members (8) and (8) to the rear part of the cabin (C). Is provided with weather strips (41) and (41) made of an elastic material in a state of being fitted into holders (40) arranged at regular intervals.

[Another embodiment]

In addition to the above embodiments, the present invention sets the positional relationship between the engaging rod and the connecting member of the front connecting mechanism upside down.
Alternatively, this connecting mechanism can be variously implemented, such as by connecting the bolts and nuts with each other, and the rear engaging mechanism can also be variously implemented.

Also, the position control mechanism is implemented in various ways, such as by providing a lock rod on the side of the vehicle body with a lock ring on the side of the cabin, or by providing serrated members that interlock with each other on the side of the vehicle body and the cabin, respectively. it can.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 shows an embodiment of a cabin attaching / detaching structure according to the present invention. FIG. 1 is an overall side view of a tractor with the cabin mounted, FIG. 2 is an exploded perspective view of the cabin, and FIG. 3 is a rear engaging mechanism. FIG. 4 is a front view showing the arrangement of the front connecting mechanism, FIG. 5 is a vertical sectional side view of the rear engaging mechanism in the non-engaged state, and FIG. 6 is a rear engaging state in the engaged state. FIG. 7 is a vertical sectional side view of the coupling mechanism, FIG. 7 is a longitudinal sectional rear view of the rear engaging mechanism in an engaged state, FIG. 8 is a longitudinal sectional rear view of a front coupling mechanism in a coupled state, and FIG. 9 is a front coupling in a coupled state. It is a cross-sectional top view of a mechanism. (14) …… engagement member, (15) …… engagement piece, (15b), (1
8) ... Member, (C) ... Cabin, (D) ... Position control mechanism.

Claims (1)

[Scope of utility model registration request] 1. In a mounted posture, it is engaged with an engagement piece (15) provided on the rear portion of the cabin to prevent the rear portion of the cabin from moving upward with respect to the vehicle body, and is set to a detached posture by lifting the front portion of the cabin. The engaging piece (15)
A position where the engagement member (14) for releasing the engagement with and allowing the upward movement of the rear part of the cabin with respect to the vehicle body is provided in the vehicle body, and the cabin (C) is set in the mounting posture, and is fitted in the vertical direction. A cabin attaching / detaching structure in which a regulating mechanism (D) is provided between members (15b) and (18) connected to an engaging piece (15) and an engaging member (14), respectively.