JP2002219936A - Cabin of moving vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve visibility of a side of a door of a cabin and to prevent breakage of door glasses caused by impact at a time of opening/closing the door. SOLUTION: The door 3 of the cabin 1 is constituted of frameless transparent glasses. An intermediate portion of a front edge portion of the door is bent frontward along a front support 2a to be an approximately V shape when seen from a side. A door lock apparatus 17 is disposed to the bending portion. A rear portion of the door 3 is attached to a support 2b to openably and closably pivot on the support 2b. A door reinforcement frame constituted of an upper frame 15, a lower frame 16 and longitudinal frame 30 are attached inside the door 3 to be spaced from a peripheral edge of the door 3. The lower frame 16 is longer than the upper frame 15, and a tip of the lower frame 16 is connected to the door lock apparatus 17.

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 a moving vehicle such as a tractor.

[0002]

2. Description of the Related Art As a conventional technology disclosed, for example, a technology disclosed in Japanese Utility Model Laid-Open No. 58-171715 is known. What is described in this publication is a frameless form without providing a frame on the outer peripheral portion of the door glass in order to enlarge the field of view, and a hinge and a door lock device are directly attached directly to this frameless glass plate. It was done.

[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]

Means for Solving the Problems The present invention proposes to solve the above-mentioned problems, and has taken the following technical means. That is, in the cabin 1 of the moving vehicle, the door 3 of the cabin 1 is made of a frameless transparent glass, and the upper and lower intermediate portions at the front edge thereof are bent forward so as to conform to the shape of the front support 2a. A door lock device 17 is provided at this bent portion, and a rear portion of the door 3 is pivotally attached to the column 2b so as to be openable and closable. , A door reinforcing frame having an upper frame 15, a lower frame 16, and a vertical frame 30 is attached thereto.
By making the lower frame 16 longer,
Is connected to the door lock device 17 to form a cabin of a mobile vehicle.

[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.

A cockpit 10 is provided on the vehicle body between the left and right fenders 9, 9, and a floor 11 is provided from below the cockpit 10 to the rear end of the hood 8. Floor 1
The front support columns 2a and 2a are erected on the front left and right both sides of the first floor 1, and the rear support columns 2b and
2b, and connecting frames 12, 12 are provided between the upper ends of the two columns 2a, 2b.
The roof 13 is placed on the top, and the cabin 1 is configured 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 is provided.
And a lower frame 16 in the middle of the door 3 and extending in the front-rear direction, and a vertical U-shaped frame 30 connecting the rear portions thereof to each other. . The door frame 4 is mounted at a position slightly away from the edge of the door 3 toward the inside as shown in FIG. The door 3 is pivotally connected to the rear supports 2b, 2b so as to be openable and closable via the doors 14 and 14, respectively. A door lock device 17 is provided at a front portion of the lower frame 16.
Can be opened and closed.

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 these glasses 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. That is, since a strong impact load does not concentrate on a part of the glass, particularly on the mounting portion of the hinge 14, the glass is not broken.

[0009]

According to the present invention, in the cabin 1 of a mobile vehicle, the door 3 of the cabin 1 is made of a frameless transparent glass, and the upper and lower intermediate portions at the front edge of the cabin 1 conform to the shape of the front column 2a. The door 3 is provided with a door lock device 17 at the bent portion, and a rear portion of the door 3 is pivotally attached to the support 2b so as to be openable and closable. A door reinforcement frame having an upper frame 15, a lower frame 16 and a vertical frame 30 is attached to a portion away from the outer peripheral edge of the upper frame 15.
By making the lower frame 16 longer,
Is connected to the door lock device 17 so that the side view of the door 3 of the cabin 1 can be expanded while the door 3
The impact load at the time of opening and closing can be appropriately dispersed by the upper and lower frames 15 and 16, and the impact does not directly act on the glass, so that the glass of the cabin 1 is broken when the door 3 is opened and closed. Does not occur. Particularly, in the present invention, the lower frame 16 having a long length is provided inside the portion where the front and rear regions of the glass are the largest, and the distal end of the lower frame 16 is connected to the door lock device 17. The rigidity is increased, and an excessive load is not concentrated on the frameless glass plate surface when opening and closing the door.

[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 of a moving vehicle, a door of the cabin is made of a frameless transparent glass, and an upper and lower intermediate portion at a front edge portion thereof is bent forward so as to conform to a shape of a front support. A door lock device is provided at this bent portion, a rear portion of the door is pivotally attached to a support column so as to be openable and closable, and a portion separated from an outer peripheral edge inside the door is provided with an upper frame. And a door reinforcing frame having a lower frame and a vertical frame, a lower frame being longer than the upper frame, and a leading end of the lower frame being connected to the door lock device.