JPH0789343A - Tractor cabin door - Google Patents

Abstract

PURPOSE:To extend a front sight from a door glass by slanting the door frame provided in the intermediate part of the glass door in a front down ward direction. CONSTITUTION:The door cabin of a tractor is composed of a door frame 7 having a door hook 5 and a door handle 6 and the like slanted in a front down ward direction in front of a driver seat 1 in the vertically intermediate part of the glass door 4 of a cabin 3 for covering the driver seat 1 and steering handle 2 and the like of the tractor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cabin door of a tractor, and it is intended to widen a front view from the cockpit through the cabin door.

[0002]

2. Description of the Related Art In tractor work, the cabin door is vitrified in order to widen the front field of view, and in particular, the lower half of the door is vitrified over the step floor. The structure is such that the wheels can be easily seen through. However, even when configured as such a glass door, if a door frame for attaching a door hook, a door handle, etc. is provided in the upper and lower intermediate portions of the glass, this door frame easily obstructs a part of the field of view, especially in front of the front wheels. An important position of the part is likely to be a blind spot.

[0003]

According to the present invention, a glass door 4 of a cabin 3 covering a cockpit 1 and a steering handle 2 and the like of a tractor is provided with a door hook 5 and a door hook 5 in front of the cockpit 1 at a front lower slope. A cabin door of a tractor having a door frame 7 having a door handle 6 and the like is provided.

[0004]

The glass door 4 is opened and closed by the door handle 6, and since the door handle 6 is provided on the door frame 7 in the upper and lower intermediate portions of the glass door 4, it has rigidity and stable opening and closing. Is done. Moreover,
Since this door frame 7 is configured to incline forward and downward, even if it is at a high position on the lateral side of the cockpit 1, it is lowered at the front to maintain a wide front view of the operator through the door glass. It is easy to gaze forward from the wheel.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tractor vehicle body 8 is integrally formed by connecting a front engine to a clutch housing and a rear transmission case. A front axle housing is supported on a front axle bracket 9, and this front axle housing is supported. Front wheels 10 which can be steered by the steering handles 2 are mounted on both left and right ends of the shaft. Rear wheels 11 are axially mounted on both left and right sides of the transmission case at both ends of a rear axle housing. These front and rear wheels 1
Nos. 0 and 11 have a four-wheel drive configuration in which the engine is driven to rotate.

A bonnet 12 covers the upper part of the engine mounted on the front part. The rear end of this bonnet 12 is
It is brought close to the front frame 14 of the cabin 3 which is fitted on the dashboard 13 having the steering post. The seat case and the fender 15 covering the mission case and the left and right rear wheels 11 are formed in a bucket shape, and the cockpit 1 is mounted in the center of the seat floor. Between the seat floor and the front end of the fender 15 and the lower part of the dashboard 13, the step floor 1
6, the dashboard 13, the step floor 16, the seat floor, the fender 15, and the like constitute a cabin bottom portion on which the cabin 3 is mounted.

The cabin 3 includes a roof frame 17 having a generally rectangular shape in a plan view, a front strut 18 at a front corner of the roof frame 17, a rear strut 19 at a rear corner, and a front connecting the lower ends of the respective struts 18. The frame 14, the rear frame 20 that connects the lower ends of the columns 19 and the side frame 21 that connects the lower ends of the front column 18 and the rear column 19 are framed.

With respect to such a cabin frame, a windshield 22 is mounted between the front columns 18 and a rear glass 23 is mounted between the rear columns 19 and the left and right side glass doors 4 are openable and closable. Is installed. A roof panel 24 is mounted on the roof frame 17.
The roof frame 17 and the front support column 18 are made of a draw-mesh pipe material having a substantially gourd-shaped cross section. In the cross-sectional shape of this drawn net tube material, a wide surface A having a wide arc diameter and a narrow narrow surface B are formed, and a deep recessed surface C and a shallow recessed surface C between these wide surfaces A and B are shallow. And a recessed surface D.

In the roof frame 17 and the front support column 18, these deep recessed surfaces D are opposed to the glass door 4 side, and the shallow recessed surfaces C are opposed to the roof panel 24 and the windshield 22 side. Facing inside,
The narrow surface B is arranged to face the outside. Note that these relational positions may be set in the opposite direction. Glass door 4
The upper rear end is pivotally supported by the door hinge 25 so as to be openable and closable outward with respect to the rear support frame 19, and the door frame 7 extending in the front-rear direction is provided in the upper and lower intermediate portions, while the front portion is low and the rear portion is high. It is provided so as to be inclined downward so that the glass door 4 is sandwiched between the outside and the inside. Both the upper and lower sides of the door frame 7 are constituted by upper and lower door glasses 4U and 4D so that they can be seen through.

At the front part of the door frame 7 of the glass door 4, there are door handles 6 on the outside and the inside, whereby the door hooks 5 are interlocked to disengage the striker 26 provided on the front support column 18. You can open the door. Door seals 27 made of an elastic material are attached to the outer peripheral edges of the upper and lower door glasses 4U and 4D, and when the glass door 4 is closed, these door glasses 4U and 4D.
The door seal 27 is sandwiched by D, the deep recessed surface C of the roof frame 17, the front support column 18, etc., and the door receiving edge of the rear support column 19, side frame 21, etc., so that the airtightness inside the cabin 3 is improved. To keep.

A seal cover 28 is provided on the upper edge of the windshield 22 and on both left and right edges thereof, and the roof frame 17 is provided.
And a sealing material 29 made of a urethane material with double-sided adhesive, and an adhesive 30 such as a bond is filled between the seal cover 28 and the sealing material 29. Then, the windshield 22 is solidified, and the peripheral portion of the windshield 22 is integrally and airtightly attached to the roof frame 17, the front support column 18, and the like. The front frame 14 at the lower edge of the windshield 22 covers a gap with the dashboard 13 that receives the windshield 22.

The roof panel 24 covers the girder-shaped roof frame 17, and the outer peripheral edge 31 is bent downward, fitted in the shallow recessed surface D, and airtightly bonded with an adhesive or the like. . The top surface of the roof panel 24 has an upper part at the upper part of the cockpit 1 and an arc-shaped inclined surface at the front part F and the rear part R. If the arc-shaped inclined surfaces F and R are inclined curved surfaces with the arc center position set near the ground contact surfaces G of the front and rear wheels 10 and 11, the ceiling directly above the cockpit 1 is maintained at the highest level. However, even if the front and rear wheels 10 and 11 have different diameters and the vehicle body 8 leans back and forth, the roof panel 24
It becomes difficult for the front end or the rear end of the vehicle to exceed the vehicle height limit height.

The rear glass 23 is provided between the roof frame 17, the left and right rear columns 19 and the lower rear frame 20 so that the lower part is openable and closable rearward with the upper part as a hinge. An elastic seal 28 is provided on the.

[Brief description of drawings]

FIG. 1 is a side view.

FIG. 2 is a perspective view of a cabin.

FIG. 3 is an exploded perspective view thereof.

FIG. 4 is a side view of a door slicer portion of a front support column.

FIG. 5 is a plan view thereof.

FIG. 6 is a plan view of a front support column.

[Explanation of symbols]

 1 Pilot Seat 2 Steering Handle 3 Cabin 4 Glass Door 5 Door Hook 6 Door Handle 7 Door Frame

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Niiyama 1 No. 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A door frame having a door hook 5 and a door handle 6 and the like in front of the cockpit 1 and inclined forward and downward at a vertically intermediate portion of a glass door 4 of a cabin 3 which covers the cockpit 1 and a steering handle 2 part of a tractor. Cabin door of tractor provided with 7.