JP3491592B2 - Agriculture traveling body cabin door device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device for an agricultural traveling vehicle cabin such as a tractor or a combine. 2. Description of the Related Art A door of a cabin of a moving vehicle is constituted by an outer frame formed by pressing and bending a sheet metal material, and a wide frame such as a sheet metal having a window hole punched therein. In some cases, a transparent glass or the like is fitted and mounted, or in a lower frame made of a sheet metal, an upper outer periphery is formed of a mounting frame such as a square pipe, and the transparent glass is mounted in the mounting frame. In such a conventional device, since the transparent glass and the frame portion and the mounting frame of the outer peripheral portion are on the same plane, when the frame and the frame portion are greatly widened, the outer peripheral portion of the door is formed by the frame and the frame portion. There was a drawback that hindered the view. [0003] As a known example of solving such a problem, in order to enlarge the field of view of the cabin door, a frame, a mounting frame, and the like are all removed.
No. 1715 appeared. In this, a door is made of a transparent body such as a tempered glass or a plastic plate, and a hinge and a door lock device are directly attached to a frameless transparent body without providing a door frame to constitute an opening / closing door. . [0004] The cabin door, which is an improved conventional product shown as a known example, has a structure in which a hinge and a door lock device are directly attached to a frameless transparent body constituting the door, so that visibility is reduced. Although the improvement is achieved, the load of the frameless transparent body concentrates on the hinge mounting part, and the impact when opening and closing the door directly acts on the doorlock device mounting part of the frameless transparent body, the frameless transparent body Has a new disadvantage of causing distortion or breakage. And, what is shown in this known example, when the driver is seated, the hinge portion support that supports the door largely covers the side of the seat, and obstructs the side of the face of the driver seated on the seat. And the lateral visibility during running is poor. [0005] In order to solve the above-mentioned problems of the conventional device, the present invention takes the following technical measures. That is, the cockpit 15 is provided in the cabin 21 of the moving vehicle, and a transparent door 30 whose front edge is opened and closed as a rear hinge is provided on the side of the cockpit 15, and the rear edge 30 a of the rear upper half of the door 30 is provided. And the rear end edge 30b of the lower half of the door 30 substantially along the shape of the fender 18 so that the lower half of the door 30 is lower than the upper half. Are narrowed in the front-rear direction, and mounting holes 49, 49 are respectively opened in the upper and lower portions of the rear edge 30a, and the hinge 29 is located on the outer surface of the mounting holes 49, 49,
A main door frame 38 made of a pipe material having upper and lower mounting seats 50 and 50 on the inner side surfaces of the mounting holes 49 and 49, respectively, is disposed in a vertical direction, and the hinge 29, the transparent door 30, and the mounting seat 50 are provided. The upper door frame 41 for supporting the upper front end of the door 30 from the substantially upper end of the main door frame 38 toward the front is projected from the upper end of the main door frame 38.
At the end of the frame 41, an upper front door frame 43a is provided.
And connect the lower end of the upper front door frame 43a.
An intermediate door frame 42 is connected to the lock bracket 45, and further projects from an approximately lower end portion of the main door frame 38 toward the front to support an intermediate portion in the vertical direction of the front end of the door 30.
The front end of the intermediate door frame 42 is
Connected to the racket 45, and further below the main door frame 38
Along the curved shape of the fender 18 and the shape of the door
The peripheral door frame 43 is provided as
Attach the end of the frame 43 to the door lock bracket 45
And a cabin door device for an agricultural moving vehicle. A tractor body 6 has a front axle bracket 7, a clutch housing 8, a transmission case 9 and the like connected from the front, and front left and right sides of the front axle bracket 7 are provided by front axle housings 10. And a rear axle housing 1 on both left and right sides of the transmission case 9.
2 to support the rear wheel 13 so that it can be driven,
Each of them is configured to be driven in conjunction with the engine 14. In the upper part of the transmission case 9, the cockpit 1
5 and a steering handle 17 at the front of the step floor 16. A floor 19 is provided from the upper fender 18 of the rear wheel 13 to the upper side of the transmission case 9 in the center. Through the lower frame 20,
The left and right rear portions of the cabin 21 are supported by the transmission case 9 to the rear axle housing 12. [0010] The frame structure of the cabin 21 includes a front support column 23 located outside the dashboard 22 and a cockpit 15.
A rear connecting post 25 positioned on the laterally outer side of the rear portion, a front connecting frame 25 connecting lower end portions of these left and right front supporting columns 23,
The four corners of the roof frame 1 having a rectangular shape in plan view are connected between the rear connection frame 26 connecting the lower ends of the left and right rear supports 24 to each other, and between the upper ends of the front supports 23 and the rear supports 24. The front connecting frame 25 is superposed on the dashboard 22 and the rear connecting frame 26 is mounted on the lower frame 20 at the rear of the transmission case 9. The parts are connected to each other by a front part and a rear part of the fender 18 and mounted on the tractor vehicle body 6. In such a cabin 21 frame, a windshield 27 is provided between left and right front supports 23, and a rear glass 28 is provided between left and right rear supports 24 so as to be openable and closable. Is provided with a door 30 which is attached to the rear support 24 with a hinge 29 so as to be openable and closable. The roof frame 1 is made of sheet metal and formed hollow by joining and joining an outer member and an inner member, and the outer member is exposed to the outside of the cabin. Also, the inner member is exposed in the cabin. The front side portion 3 forms a mounting edge 32 for mounting the upper edge of the windshield 27 via a seal 31 at the lower front side, and the rear side edge forms a stepped portion 33 to form a front edge portion of the roof panel 5. Can be superimposed on the lower edge 34 of the step 33 and joined by welding, bolts, nuts or the like. Also, the left and right side portions 4 are formed continuously in the same manner, and the upper surface is formed narrower than the front side portion 3 so that the amount of rain diverted to the outside is reduced. The rear side 2 does not form the step 33,
An upper end surface 35 is formed on a surface at the same height as the lower edge portion 34, and the rear edge portion of the roof panel 5 is overlapped and joined on the upper end surface 35. 36 is a lining board. In addition, the roof frame 1 is assembled and assembled by being overlapped in the form of a plug-in from the front and rear sides 4 (shown as A). In such a configuration, it is possible to assemble with a fastener such as a bolt. In addition, it is possible to share the case where the lengths in the front-back direction are different due to the different models. The door 30 is hinged to the rear support 24 by a hinge 29.
The main door frame 38 has a main door frame 38 made of a thick pipe material which can be freely opened and closed, and a peripheral door frame 43 made of a pipe material thinner than the main door frame 38. Perimeter door frame 4
3 and inserted into the upper side 44 (shown as B).
Then, it is fixed by welding or the like. The lower side portion 42 of the main door frame 38 is inserted and fixed to a vertically intermediate portion of a door lock bracket 45 located between the upper front side door frame 43a and the lower front side door frame 43b. The part 46 is connected to the rear part of the intermediate door frame 42 of the main door frame 38 by lifting the rear end upward along the edge of the fender 18. Among these peripheral door frames 43, the front upper side door frame 44 and the lower side door frame 46 have different angles with respect to the intermediate door frame 42. Therefore, the upper glass 37 and the lower glass 47 to be attached to the outside may be a single piece of curved glass, but the cost is reduced as a flat glass.
A joint 4 made of an adhesive or the like along the intermediate door frame 42
8 are formed so that the angles of the glass surfaces are different. The glass plates 37 and 47 are mounted on the outer surfaces of the main door frame 38 and the peripheral door frame 43 with an elastic material such as rubber interposed therebetween.
Mounting seat 5 fixed to the corner of the door frame 43
0 and the door lock bracket 45. In the mounting seat 50, the glass 37, 4
The stepped nut 51 and the elastic body 52 fitted to the outer periphery of the stepped nut 51 are fitted into the mounting hole 49 formed in
1 and the mounting seat 50 are fastened and fixed with bolts 53. The peripheral portions of the glass 37 and 47 with respect to the door lock bracket 45 are fitted and held via a rubber seal 54. The outer peripheral edges of the glasses 37 and 47 project outward beyond the main door frame 38 and the peripheral door frame 43, and a seal damper 55 is attached. When the door is closed, a seal receiving edge provided on the frame side of the cabin 21 or The lower edge 39 of the left and right sides 4 of the roof frame 1 is brought into contact with the lower edge 39 to maintain airtightness. The front edge 5 of the door lock bracket 45
6, a door lock bracket 45 is provided inside a seal damper 55 attached to the front side edge of the lower glass 47.
A drain passage 59 communicating with the inside of the housing 57 and the drain hole 58 is formed to guide the water that has entered the inside of the door lock bracket 45 downward, and drain from the drain hole 60 formed in the seal damper 55 at the lower end. I do. Operation and Effect of the Invention The present invention has the following effects by the configuration described above. A cockpit 15 is provided in the cabin 21 of the moving vehicle, and a transparent door 30 whose front edge side is opened and closed as a rear hinge is provided on a side of the cockpit 15,
The rear edge 30a of the rear upper half of the door 30 is aligned substantially vertically with the front end face 24a of the rear support 24 of the cabin 21, and the rear edge 30b of the lower half of the door 30 is connected to the fender 18
The width of the lower half is narrower in the front-rear direction than that of the upper half along the shape of the upper half, and mounting holes 49, 49 are opened in the upper and lower portions of the rear edge 30a, respectively. A hinge 29 is positioned on the side surface, and a main door frame 38 made of a pipe material having upper and lower mounting seats 50, 50 on the inner surface of the mounting holes 49, 49 is vertically arranged. The door 30 and the mounting seat 50 are fastened together with the fastener 53,
An upper side door frame 41 for supporting an upper part of the front end of the door 30 from the substantially upper end of the main door frame 38 toward the front is projected, and an upper front side door is provided at a front end of the upper side door frame 41.
The upper front door frame 4 is connected to the frame 43a.
3a is connected to the door lock bracket 45, and
Projecting the intermediate door frame 42 which supports the vertically intermediate portion of the door 30 forward toward the front from a substantially lower portion of the main door frame 38, the front end portion of the intermediate door frame 42
Connected to the door lock bracket 45,
The curved shape of the fender 18
A peripheral door frame 4 provided along the shape of the door
3 and the end of the door frame 43 is
Since the door frame 30 is connected to the bracket 45, the door frame in the front-rear direction supporting the door 30 exists only at the upper side of the door 30 and the middle part in the vertical direction.
Improves the lateral and downward visibility of the driver sitting on the
Unlike the conventional product having an outer peripheral holding frame, the entire frame or the lower side plate does not obstruct the view of the side and the lower side. In addition, the whole of the conventional product improvement is made of a transparent member, and the upper end of the upper side door frame 41 and the upper end of the intermediate door frame 42 projecting forward, respectively, as compared with the door without the mounting frame. Supporting the upper front end and the front middle in the vertical direction improves durability against impact when the door is closed. In particular, in the present invention, the upper front door frame 4
3a, the front end of the intermediate door frame 42 and the peripheral door.
Connect the end of the frame 43 to the door lock bracket 45
The entire door frame was connected
A durable door that can be a rigid frame
It became a frame . Also, since this door frame could be attached to the inner surface of a transparent body such as a glass plate with a gap,
Even when the transparent body moves inward and outward due to inertia when the door 30 is opened and closed, contact between the door frame and the transparent body hardly occurs, and the durability is not reduced.

[Brief description of the drawings] The figure shows an embodiment of the present invention. FIG. 1 is a perspective view of a roof portion. FIG. 2 is a side sectional view of a roof portion. FIG. 3 is a front sectional view of a roof portion. FIG. 4 is an overall side view of the tractor. FIG. 5 is an overall front view of the tractor. FIG. 6 is a rear view of the tractor. FIG. 7 is a side view of a door, which is a main part. FIG. 8 is a sectional view taken along line CC of FIG. 7; FIG. 9 is a sectional view taken along line DD of FIG. 7; FIG. 10 is an enlarged side view of a part of FIG. 7; FIG. 11 is a sectional view taken along the line EE of FIG. 10; FIG. 12 is a sectional view taken along line FF of FIG. 10; FIG. 13 is a sectional view taken along line GG of FIG. 10; [Explanation of symbols] 15 cockpit 18 Fender 21 cabins 24 rear support 24a Front end face 29 Hinge 30 door 30a trailing edge 38 Main door frame 41 Upper side door frame 42 Intermediate door frame 43 Perimeter door frame 43a Upper front door frame 43b Lower front door frame 45 Door lock bracket 46 Lower side door frame 49 Mounting hole 50 Mounting seat

Claims (1)

(57) [Claims 1] A cockpit 15 in a cabin 21 of a moving vehicle.
And a transparent door 30 whose front end side is opened and closed as a rear hinge on the side of the cockpit 15. The rear end edge 30 a of the rear upper half of the door 30 is connected to the front end face 2
4a, and the rear edge 30b of the lower half of the door 30 is made substantially along the shape of the fender 18 so that the lower half is narrower in the front-rear direction than the upper half. Mounting holes 49, 49 are opened in the upper and lower portions of the rear end edge 30a, and the hinge 29 is located on the outer surface of the mounting holes 49, 49. A main door frame 38 made of a pipe material is disposed vertically, and the hinge 29, the transparent door 30, and the mounting seat 50 are fastened together by a fastener 53, and the main door frame 38 An upper side door frame 41 for supporting an upper part of the front end of the door 30 from the substantially upper end toward the front is projected, and the upper side door frame 41 is provided.
An upper front door frame 43a is connected to the tip of 41.
Lock the lower end of the upper front door frame 43a
Coupled to click bracket 45, projecting from the intermediate door frame 42 further supports a vertically intermediate portion of the door 30 forward toward the front from a substantially lower portion of the main door frame 38, in this
Connect the front end of the intermediate door frame 42 to the door lock bracket.
At the bottom of the main door frame 38
To follow the curved shape of the fender 18 and the shape of the door
The provided peripheral door frame 43 is provided.
The end of the arm 43 is connected to the door lock bracket 45
A cabin door device for an agricultural moving vehicle.