JP2003341362A - Cabin of traveling vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the warping or breakage of a glass sheet of a non-framed cabin door of a tractor or the like by mitigating the shock of opening/closing of the door as much as possible. <P>SOLUTION: While constituting the door (3) of a cabin (1) with a non-framed transparent glass sheet, this door (3) is openably/closably fitted to a support pole mainly through two (upper and lower) hinges (14, 14). On the inner side of the door (3), and at upper, middle, and lower portions of the door, a frame (16) is installed along the forward-rear direction, and the rear end of the frame (16) is linked to the lower-side hinge (14). <P>COPYRIGHT: (C)2004,JPO

Description

Description: 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. 2. Description of the Related Art As a conventional technology disclosed, for example, a technology disclosed in Japanese Utility Model Laid-Open Publication No. Sho 58-171715 is known. In this publication, a frameless form is not provided on the outer periphery of the door glass in order to enlarge the field of view, and a hinge and a door lock device are directly attached to the frameless glass plate. Things. [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. In some cases, the impact at the time of opening and closing the door directly acts on the door locking device mounting portion of the glass plate, causing the glass plate to be distorted or damaged. [0004] In order to solve the above problems, the present invention proposes the following technical means. That is, in the cabin of the moving vehicle, the door 3 of the cabin 1 is made of a frameless transparent glass, and the door 3 is connected to the upper and lower two hinges 14,
A frame 16 is provided on the inside of the door 3 at the upper and lower middle portions along the front-rear direction, and the rear end side of the frame 16 is connected to the lower hinge 14. The cabin of a mobile vehicle is characterized in that: An embodiment of the present invention will be described below with reference to the drawings. Front and rear wheels 5, 5 and rear wheels 6, 6 are provided on the front and rear portions of the vehicle body 7, respectively, and a hood 8 containing a motor is provided at the front of the vehicle body 7, Fenders 9, 9 are provided to cover the upper and inner sides of the wheels 6, 6, respectively. 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 sides of the first floor 1 and the rear support columns 2b and 2b on the rear left and right sides of the floor 11.
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. 1, and hinges 14 are provided at two upper and lower corners 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 a front portion of the lower frame 16.
Can be opened and closed. In this embodiment, the door 3 is composed of two front and rear glasses, and the latter half of the glass 18 can be opened and closed by the upper hinge 33 inward and outward. 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. 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. According to the present invention, in a cabin of a moving vehicle, the door 3 of the cabin 1 is made of a frameless transparent glass, and the door 3 is formed of two hinges 14,
A frame 16 is provided on the inside of the door 3 at the upper and lower middle portions along the front-rear direction, and the rear end side of the frame 16 is connected to the lower hinge 14. Therefore, while expanding the side view of the door 3 of the cabin 1, the impact load at the time of opening and closing the door 3 can be appropriately dispersed by the frame 16, and the impact does not directly act on the glass. Therefore, there is no problem that the glass of the cabin 1 is broken when the door 3 is opened and closed. Further, since the frame 16 is provided inside the glass along the front-rear direction, the driver can grip the frame 16 to open and close the door 3, thereby improving the operability during getting on and off.

[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] 1 cabin 2a Front support 2b rear support 3 door 4 door frame 14 Hinge 15 Upper frame 16 Lower frame 30 vertical frames

Claims (1)

Claims 1. In a cabin of a moving vehicle, a door 3 of the cabin 1 is made of a frameless transparent glass.
The door 3 is pivotally connected to the upper and lower two hinges 14 so as to be openable and closable, and a frame 16 is provided inside the door 3 and at a middle portion between the upper and lower sides along the front-rear direction. A cabin of a mobile vehicle, wherein an end side is connected to a lower hinge 14.