JPH1071854A - Cabin for agricultural traveling car body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of strain and damage to a glass plate by rotatably installing a door frame on rear columns of a cabin, and installing a door lock device in a front part of the door frame. SOLUTION: A side surface view U-shaped door frame 4 composed of an upper frame 15 running in the longitudinal direction, a lower frame 16 running in the longitudinal direction in the middle of a door 3 and a vertical directional vertical frame 30 to connect these rear parts to each other, is installed inside the door 3 formed of transparent glass. The door frame 4 is installed so as to be positioned in a part slightly separate inward from the edge of the door 3, and the door 3 is pivotally fixed through hinges 14 and 14 to rear columns 2b and 2b in corner parts of upper and lower two places of the vertical frame 30 of the door frame 4 so as to be freely openable and closable. A door lock device 17 is arranged in a front part of the lower frame 16, and the door 3 can be opened and closed by rotatably operating a knob 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cabin provided on an agricultural traveling vehicle such as a tractor.

[0002]

2. Description of the Related Art Conventionally, in order to enlarge the field of view of a cabin door, Japanese Unexamined Utility Model Publication No. 58-171715 discloses an unframed glass plate without providing a door frame all around the glass plate constituting the door. There was a configuration in which a hinge and a door lock device were directly attached.

[0003]

The above-mentioned conventional cabin has a structure in which a hinge and a door lock device are directly attached to a frameless glass plate constituting a door, so that the supporting load of the glass plate is limited to the hinge attachment portion of the glass plate. In some cases, the impact when opening and closing the door directly acts on the door lock device mounting portion of the glass plate, causing the glass plate to be distorted or damaged.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a cabin provided on an agricultural traveling vehicle body, in which a door frame having a vertical frame and a horizontal frame is turned around a rear column of the cabin. A cab of an agricultural traveling vehicle body, wherein the cabin is movably mounted, a frameless transparent glass plate constituting a door is mounted outside the door frame, and a door lock device is mounted at a front portion of the door frame. did.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. Front wheels 5 and 5 and rear wheels 6 and 6
A hood 8 containing a motor is provided at the front of the vehicle body 7, and left and right rear wheels 6 are provided at the rear of the vehicle body 7.
Fenders 9 and 9 are provided to cover the upper part and the inner part of the fender 6. There is a cockpit 10 on the body between the left and right fenders 9
And a floor 11 is provided from below the cockpit 10 to the rear end of the hood 8.

Front columns 2a, 2a are erected on the front left and right sides of the floor 11, and rear columns 2b, 2b are erected on the rear left and right sides of the floor 11, and both columns are provided. 2
Connecting frames 12 and 12 are provided between the upper ends of a and 2b, and a roof 13 is placed on these connecting frames 12 and 12 to constitute the cabin 1 here. Reference numeral 3 denotes a door formed of transparent glass. Inside the door 3, an upper frame 15 extending in the front-rear direction, a lower frame 16 in the middle of the door 3 and extending in the front-rear direction, and a rear portion thereof are provided. A U-shaped door frame 4 including a vertical frame 30 connected to each other in a vertical direction is attached. As shown in FIG. 1, the door frame 4 is mounted at a position slightly away from the edge of the door 3 toward the inside, and hinges 14 are provided at two upper and lower even portions of the vertical frame 4 of the door frame 4. , 14, the door 3 is pivotally connected to the rear supports 2b, 2b so as to be openable and closable. A door lock device 17 is provided at the front of the lower frame 16, and the door 3 can be opened and closed by rotating the knob 32.

In this embodiment, the door glass is composed of two front and rear doors, and the rear half glass 18 can be opened and closed inward and outward by an upper hinge 33. A seal member 20 is attached to the outer peripheral edge of the glass so that the airtightness in the cabin 1 when the door 3 is closed is maintained. FIG. 3 shows the door frame 4
A ring-shaped elastic member 22 is fitted in a mounting hole 21 provided in the door 3, and a bolt 23 is provided in the hole provided in the elastic member 22 and the door frame 4.
And a spring 25 for pressing the door 3 in the direction of the door frame 4 is provided between the nut 24 screwed to the bolt 23 and the door frame 4.

In the above configuration, a light impact when the door 3 is opened and closed is absorbed by the seal member 20 of the door 3. On the other hand, when the door 3 is strongly closed, a strong impact may be applied to the entire glass. In such a case, the glass is separated from the door frame 4 while bending the elastic member 22 and the spring 25. That is, since a strong impact load does not concentrate on a part of the glass, particularly on the attachment portion of the hinge 14, the glass is not broken.

[0009]

According to the present invention, in a cabin provided on an agricultural traveling vehicle body, a door frame having a vertical frame and a horizontal frame is rotatably attached to a rear support of the cabin, and the outside of the door frame is provided. A frameless transparent glass plate that constitutes the door is attached to the door frame, and a door lock device is attached to the front part of the door frame. Can be appropriately dispersed by the door frame, and since the impact does not directly act on the glass, the glass of the cabin is not broken when the door is opened and closed. Therefore, it is possible to improve the durability of the door formed of the frameless transparent glass plate.

Further, since the door lock device is provided at the front portion of the door frame farther than the pivot portion of the door, the operation of opening and closing the door is easy, and the door lock device does not obstruct the view during the operation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a tractor.

FIG. 2 is a side view of the tractor.

FIG. 3 is a sectional view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cabin 2a Front support 2b Rear support 3 Door 4 Door frame 14 Hinge 15 Upper frame 16 Lower frame 30 Vertical frame

Claims (1)

[Claims] In a cabin provided on an agricultural traveling vehicle body, a door frame having a vertical frame and a horizontal frame is rotatably mounted on a rear support of the cabin, and a door is formed outside the door frame. A cabin for an agricultural traveling vehicle, wherein a transparent glass plate is mounted on a frame and a door lock device is mounted on a front portion of the door frame.