JP2544743Y2 - Cab for power shovel with glass wall construction - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cab of a construction machine, and more particularly to a window structure of a cab for a power shovel.

[0002]

2. Description of the Related Art Conventionally, the structure of a cab 21 of a construction machine, particularly a power shovel, has a shape as shown in perspective in FIG. 6, for example. It forms an independent window on the surface. In other words, the windows 24 and 25 on the left side 22 and the rear side 23 are each appropriately sized independently of each other.
The windows 2 and the rear surface 23 are separated from each other so that there is no sense of unity.

[0003]

In the above-mentioned structure, the edge of the wall 26 and the glass 27 as shown in FIG.
H rubber 28 is connected to the frame of the edge of
Since the rubber 28 is large and wide in width, the projection 28a may come into contact with an external obstacle when turning in a narrow place, and the visibility cannot be widened. Was also lacking in novelty.

In view of the foregoing, the present invention has been made to eliminate the drawbacks of the prior art by providing a window structure of a cab for a power shovel, which has no risk of contact with an external obstacle during turning and has improved visibility. It was made for the purpose of.

[0005]

Means for Solving the Problems As a means for solving the problems of the prior art, a first aspect of the present invention is a cabinet in which the lateral and rear walls are formed by glass walls joined between the cabinet pillars. Then, the end face side of one of the glass wall bodies on which the lateral face and the rear face are orthogonally approached is formed into a curved surface obtained by bending the end face side of the glass wall body in a right angle direction, and the face face of the glass wall body on the other side is faced approaching. The second aspect of the present invention is characterized in that the lateral face and the rear face of the glass wall are joined to pillars at the corners of the cab so that the faces of the rear face and the rear face of the glass wall face each other. A part or the whole of the device is not attached to the cap pillar, but is attached to the cap panel so as to be freely opened and closed by hinge means.

[0006]

According to the above construction, since there is no glass frame such as the conventional H rubber, there is no danger of contact with an external obstacle during turning, and the visibility is improved.

[0007]

FIG. 1 is a perspective view showing an embodiment of a window structure of a cab for a power shovel according to the present invention, and FIG.
A section, FIG. 3 is a BB section of FIG. 1, and FIG. 4 is a detailed view of a P part of FIG.

The present invention will be described below with reference to an embodiment shown in FIGS. Claim 1 of the present invention is that a part of the window glass surface 2 on one side of the cab 1 is extended to the adjacent other side by bending so as to be close to the window glass surfaces 3 and 4 on the other side. , 3 and 4 are made to coincide with each other, and the second aspect is configured such that the other side of the window glass surface 3 can be freely opened and closed.

The embodiment shown in FIG. 1 is for the left and rear sides of the cab 1, and the left window glass surface 2 is partially bent at the rear as shown in FIG. The front part is supported by the center pillar 5 and the rear part is supported by the rear pillar 6 in a state close to the surfaces 3 and 4. A window glass surface 7 provided on the left front portion is supported by a center pillar 5 via a hinge 8. The rear window glass surfaces 3, 4 are shown in FIG.
In the embodiment shown in FIG. 1, the lower window glass surface 4 is bent and fixed with an adhesive or the like so that the lower end thereof contacts the lower mounting surface 1a side of the cab 1. On the other hand, the upper window glass surface 3 can be opened and closed as shown in FIG.
The structure shown in FIG. That is, one side 9a of the hinge 9 provided on the upper mounting surface 1b of the cab 1 is provided with a plurality of pin holes penetrating along the upper portion of the window glass surface 3.
Is attached via a packing 11 and a pin 10 is inserted from the inside thereof.
Screws 12 are screwed into the screw holes provided in
1 and the window glass surface 3 are tightened and fixed. Therefore, the window glass surface 3 can be opened and closed around the hinge 9 with respect to the cab 1. On the other hand, the other side 9b of the hinge 9 is fixed to the cab 1, and a seal 13 is provided at an end so that the entire periphery can be contacted when the window glass surface 3 is closed. Here, description of the fixed lock of the window glass surface 3 is omitted, but can be performed by a known gas damper or the like. Further, as shown in FIG. 5, a U-shaped spring steel 15 may be used instead of the hinge 9.

Next, the operation will be described. In the present invention, since there is no projection such as the conventional H rubber on the outer periphery of the cab, there is no danger of contact with an external obstacle even when the cab turns, and the cab is hardly damaged. In addition, visibility is improved because the size of the window glass is increased.

Although the present invention has been described with reference to the embodiment in which the upper side of the rear window glass is openable and the lower side is fixed, the upper and lower sides may be integrally opened and closed. A hinge may be provided on the side to open and close left and right.

[0012]

[Effects of the Invention] As described above, the present invention relates to claim 1
3. A part of the window glass surface on one side of the cab is extended to the adjacent other side by bending so as to be close to the window glass surface on the other side, and both window glass surfaces are made to coincide with each other. The window glass surface can be opened and closed freely, so there is no frame on the glass surface as in the past, so there is enough visibility, and since there are no protrusions on the surface, there is no risk of contact with external obstacles when turning, so opening and closing Also, the structure is simple and smooth.
Furthermore, since the window glass surface on one side and the glass surface on the other side are placed close to each other so as to be continuous, a sense of unity is expressed in the design, and the appearance can be extremely novel.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view showing an embodiment of a window structure of a cab for a power shovel according to the present invention.

FIG. 2 is an explanatory diagram of a plane showing an AA cross section of FIG. 1;

FIG. 3 is an explanatory side view showing a cross section taken along line BB of FIG. 1;

FIG. 4 is an explanatory diagram showing details of a P part in FIG. 3;

FIG. 5 is an explanatory view showing another embodiment of FIG. 4;

FIG. 6 is an explanatory perspective view showing an example of a conventional cab window.

FIG. 7 is an explanatory view in cross section showing a window frame of a conventional cab.

[Explanation of symbols]

 1 Cab 2 Left window glass 3 Rear upper ガ ラ ス 4 Rear lower 〃

Claims (2)

(57) [Scope of request for utility model registration] (1) A lateral wall and a rear wall are connected between the cab pillars.
A cabinet consisting of a combined glass wall, side and rear
Glass on either side where the glass walls on the sides are orthogonally approaching
The end face side of the wall is formed into a curved surface bent at right angles, and the other side
The side of the glass wall and the rear face
Pillars at the corners of the cab so that the surfaces of the glass walls match
Power of glass wall structure characterized by being joined to
Cab for excavator. 2. A part or the entirety of a rear glass wall is a cap.
Open / close by hinge means on the cabinet panel without joining to the pillar
Cab for power Shoberu according to claim 1, characterized in that freely mounted.