JPH06211047A - Door structure for cabin - Google Patents

Abstract

PURPOSE:To make the field of view desirable by fixing a door glass rigidly to the outer face of a door frame, protruding the outer peripheral part of the door glass circumferentially outward from the door frame, and mounting a weatherstrip fittingly to the outer peripheral edge of the door glass. CONSTITUTION:A door 11 is provided with a door glass 3 rigidly fixed to the outer face of a door frame 2 through adhesive 30. The rear side of the door frame 2 is supported at a center pillar 5 through a pivotally supporting means 6 in such a way as to be rotatable around a vertical axis, and the outer peripheral edge of the door frame 2 is provided with a weatherstrip 7. The outer peripheral part of the door glass 3 is protruded circumferentially outward from the outer periphery of the door frame 2, and the weatherstrip 7 is fittingly mounted on the outer peripheral edge 3A. The weatherstrip 7 covers to hide the outer peripheral edge 3A. The supporting strength of the door glass 3 can be thereby heightened, and the field of view becomes desirable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure that can be used for cabins such as tractors and backhoes.

[0002]

2. Description of the Related Art For example, as shown in FIG. 4, a door structure of a cabin of a tractor has a door glass 3 attached to a door frame 2 made of sheet metal, and one front and rear side of the door frame 2 is provided with a middle support column 5.
(Or the front support column 4) is supported rotatably around the vertical axis via a pivot support 6, and a weather strip 7 is provided on the outer peripheral portion of the door frame 2.

[0003]

According to the above-mentioned prior art, the door frame 2 requires a mounting portion for the H-shaped rubber 9 on the inner peripheral portion thereof, and the door glass 3 is not connected via the H-shaped rubber 9. Therefore, the supporting strength of the door glass 3 is low, the width of the door frame 2 is wide, the inner peripheral side is narrow, and the visibility is deteriorated.

By the way, the door glass 3 may be broken from the outer peripheral edge of the door glass 3 and must be fitted with a rubber material in order to protect the outer peripheral edge. According to the present invention, the door glass 3 is fixed to the outer surface of the door frame 2 to improve the visibility, and the outer peripheral edge of the door glass 3 is attached to the weather strip 7.
It is an object of the present invention to provide a cabin door structure that is protected by.

[0005]

As a concrete means for solving the problems in the present invention, a door glass 3 is attached to a door frame 2 and one front and rear side of the door frame 2 is pivotally supported by a front strut 4 or a middle strut 5. In a door structure of a cabin, which is rotatably supported around a vertical axis via a tool 6, and has a weather strip 7 between an outer peripheral edge and a door receiving portion, a door glass 3 is fixed to an outer surface of the door frame 2. At the same time, the outer peripheral portion of the door frame 2 is projected outward from the door frame 2, and the weather strip 7 is fitted and attached to the projected outer peripheral edge 3A.

[0006]

The door glass 3 is fixed to the outer surface of the door frame 2. The door frame 2 does not need to have an inner peripheral edge for attaching the door glass 3 on its inner peripheral portion, and the inner peripheral side of the door frame 2 becomes wide. ing. The outer peripheral edge 3A of the door glass 3 protrudes outward from the outer periphery of the door frame 2, and this protruding portion also serves as a mounting portion for the weather strip 7, and the weather strip 7 prevents damage.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 2 and 3, reference numeral 13 denotes a tractor with a cabin, which is directly connected to an engine, a transmission case, and the like to form a vehicle body 14, and a bonnet 15 has an operation panel 1 on a rear side thereof.
6 and the handle 17 are arranged, and the rear wheel 18 is attached to the fender 19
Covered with.

The cabin 21 is mounted on the rear portion of the vehicle body 14, and is mounted directly on the vehicle body 14 and is detachably mounted on the vehicle body 14 with the operation panel 16, the handle 17, the fender 19 and the like. There are things. The cabin 21 includes a pair of left and right front columns 4, a middle column 5, and a rear column 2.
2 and the top frame 2 connecting the upper ends of all the columns 4, 5, and 22.
3 and a roof member 24 attached to the top frame 23.

A windshield 2 is provided between the left and right front columns 4.
7, a door 11 is openably and closably arranged between the front support column 4 and the middle support column 5, a rear side glass 25 is fitted between the middle support column 5 and the rear support column 22, and a rear glass 26 is provided between the left and right rear support columns 22. Is openable and closable. 1 to 3, in the door 11, the door glass 3 is attached to the door frame 2, and the rear side of the door frame 2 is a middle strut 5 (or the front side is a front strut 4).
It is configured to be rotatably supported around the vertical axis via a pivot support 6, and to be provided with a weather strip 7 on the outer peripheral edge.

The front pillar 4, the middle pillar 5, the top frame 23 and the like have a concave door receiving portion 10 facing the outer peripheral portion of the door 11.
The weather strip 7 is formed on the door receiving portion 1
It contacts 0 and seals between them. The door frame 2 is formed of a square pipe material, the outer surface of which is located slightly inward of the outer surface of the front support column 4 and is substantially flush with the outer surface of the middle support column 5. The door glass 3 is firmly fixed to the door glass 3 with an adhesive 30. The outer surface of the door glass 3 is flush with the outer surface of the front column 4, and the inner surface of the portion overlapping the door frame 2 is black masked.

The outer peripheral portion of the door glass 3 projects outward from the outer periphery of the door frame 2, and the projected outer peripheral edge 3
A weather strip 7 is fitted and attached to A. The weather strip 7 covers the outer peripheral edge 3A,
The outer peripheral edge 3A is prevented from hitting an object and being chipped or damaged. The outer peripheral edge 3A of the door glass 3 is preferably chamfered.

The middle column 5 may be made of a pipe material having a rectangular cross section, but here, a channel material having a U-shaped cross section is roll-processed and the weather strip 7 comes into contact with the outer surface side of the stepped door receiving portion. 10 is formed, and the inside is closed by a cover 32. The pivotal support 6 has a shape in which a hinge is deformed, and is provided in a plurality of upper and lower parts, one wing piece of which is fixed to the inner surface of the groove of the middle strut 5, and the other wing piece of which is fixed to the door frame 2. Since the wing piece rotates about the vertical axis, the notch 33 is formed in the middle strut 5.

A rear side glass 25 is fixed to the outer surface of the middle column 5 via an adhesive 34, and the rear side glass 25 and the outer surface of the door glass 3 are flush with each other. Therefore, the middle pillar 5 is covered with the door 11 and the rear side glass 25, and has a structure invisible from the outside. The upper part of the rear glass 26 is pivotally supported by the top frame 23 or the rear support 22, and the lower part can be opened and closed rearward.
The gas damper 35 assists opening and closing, and can be held at a required angle.

The cabin 21 is a weather strip 7
The front and rear columns 4, 22, the door 11, the windshield 27, the side rear glass 25, and the rear glass 26 are substantially flush with each other except the outer surface side, and the surface unevenness is extremely small, and dust is attached to the surface of the cabin 21. It is difficult to do, and even if it adheres, it is easy to wash and has a novel design. The present invention is not limited to the above embodiment, but can be variously modified. For example, the distance between the left and right rear columns 22 may be narrowed, and the rear side glass 25 between the middle column 5 and the rear columns 22 may be formed as an outwardly protruding arc glass, and the weather strip 7 may be attached to the door frame 2. You may also make it adhere.

[0015]

According to the present invention described in detail above, the door frame 2
Since the door glass 3 is fixed to the outer surface of the outer peripheral surface of the door frame 3 and the outer peripheral portion of the door glass 3 protrudes outward from the door frame 2, and the weather strip 7 is fitted and attached to the protruding outer peripheral edge 3A,
The supporting strength of the door glass 3 by the door frame 2 can be increased and the inner peripheral side of the door frame 2 can be widened to improve the visibility, and the outer peripheral edge 3A of the door glass 3 can be covered by the weather strip 7. Can be protected and door glass 3
It can also prevent damage.

[Brief description of drawings]

FIG. 1 is a sectional plan view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional plan view of the cabin.

FIG. 3 is a side view of a tractor with a cabin.

FIG. 4 is a cross-sectional plan view showing a conventional technique.

[Explanation of symbols]

 2 Door frame 3 Door glass 3A Outer edge 4 Front column 5 Middle column 6 Pivot support 7 Weather strip 8 Mounting recess 10 Door receiving part 11 Door 21 Cabin 25 Rear side glass 27 Front glass

Claims (1)

[Claims] 1. A door glass (3) is attached to a door frame (2), and one of the front and rear sides of the door frame (2) is attached to a front strut (4) or a middle strut (5) via a pivot support (6). A cabin door structure, which is rotatably supported about a vertical axis and is provided with a weather strip (7) between an outer peripheral edge and a door receiving portion (10), has a door glass () on an outer surface of the door frame (2). 3) is fixed, the outer peripheral portion of the cabin is projected outward from the door frame (2), and the weather strip (7) is fitted and attached to the projected outer peripheral edge (3A). Door structure.