JP2590913Y2 - Rear window structure of cab for construction machinery - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear window structure of a cab for construction equipment.

[0002]

Since BACKGROUND OF THE INVENTION cab for a construction machine from a conventional large vibration or shock, for example, the case of the rear cab 21 shown in FIG. 5, placed glass 22 into the window frame 23, the window frame 23 6
As shown in FIG. 7, a sash frame 26 containing glass 22 is fixed to the cab 21 by fixing it with a hinge 25 provided outside the cab 21 and opening and closing the window frame 23 as shown in FIG. It is fixed. The lower part shown by the two-dot chain line in FIG. 5 is the front side of the cab 21.

[0003]

An invention is, however, since those shown in FIGS. 6 and 7 have a window frame 23 and sash frame 26, the entire glass window is large and heavy, secure the strength to withstand shock and vibration To do so, it is necessary to reinforce each part. Thus inevitably the appearance Takeshi bone dressed, also this part amount to visibility also provided H-type rubber 30 as shown in FIG. 6 is hampered.

In view of the foregoing, the present invention has been made to solve the drawbacks of the prior art by providing a rear window structure of a cab for construction equipment capable of improving visibility by eliminating a window frame. It is a thing.

[0005]

According to the present invention, as a means for solving the above-mentioned problems of the prior art, a rear window glass of a cab is opened.
In the rear window structure of the cab for construction machinery that can be closed
A seat plate formed integrally and partially on the rear side of the hub;
Attach one side to the seat plate and connect the other side to one end of the hinge
Bracket, iron plate connected to the other end of hinge, and holding
A glass plate inserted and sandwiched between members.
The lath plate is constructed so that it can be freely opened and closed with a hinge
It is.

[0006]

According to the above construction , the window frame,
And, to dispose the H-shaped rubber to kill the window glass,
It is not necessary to arrange a sash frame or the rear window of the cab
The glass plate to be sandwiched between the iron plate and the holding member.
The rear window can be opened and closed freely.
Can be.

[0007]

1 is a side view of an embodiment of a rear window structure of a cab for construction equipment according to the present invention, FIG. 2 is a Z view of a bracket portion of FIG. 1, and FIG. 3 (a) is a cab of the present invention. The rear window blind spot
FIG. FIG. 3B illustrates a conventional blind spot of a rear window.
FIG.

[0008] Hereinafter, after the cab for construction equipment according to the present invention.
The window structure will be described with reference to FIGS. Figure 1, and
As shown in FIG. 2 as viewed in the direction Z in FIG.
7 are integrally formed. The seat plate 7 has a bracket
One end of the door 4 is attached by a bolt 8. Braquet
A horizontal seat 4 a is fixed to the other end of the unit 4. This
The horizontal seat 4a has one end of a hinge 5
Installed. The glass plate 6 is connected to the iron plate 11 and the holding unit.
After being inserted between the material 12 and the other end of the hinge 5, the iron plate 1
1 and the holding member 12 are fastened with screws 10.
Also, the bracket 4 is larger than the outer surface 2 at the rear of the cab 1.
It is arranged at the upper part of the inner surface of the periphery of the window hole 3 provided inside.
I have.

As shown in FIG. 5, the bracket 4 has a substantially square shape which is appropriately spaced in the cab width direction to provide a plurality of hinges on the upper inner surface of the periphery of the window hole 3.
It is. A seal 13 is provided on the cab 1 side.
Have been. The rubber-like seal 13 is formed by the glass plate 6
If it moves, it may break even if it comes into contact with the upper part of the glass plate 6.
There is no such thing.

Next, the operation will be described. First, when the operator looks out from the rear window, conventionally, the blind spot is large as shown in FIG. 3B (the structure is the same as FIG. 6), but according to the present invention, FIG. As shown in FIG. 1 (same structure as in FIG. 1), the blind spot is small, and the field of view is widened. Since the H-type rubber 30 was in all windows around particular Conventionally, this is is preventing the view, the present invention H-type rubber 3
0 is abolished and the glass plate 6 is replaced with the iron plate 11 and the holding member 12.
And the field of view through the glass plate 6 is extremely wide. When the glass plate 6 is opened, the hinge 5 is used.
This can be done by rotating the other side of the body so that it faces upward with respect to one side. In this case, since the upper end of the glass plate 6 comes into contact with the seal 13 and bends it, the cab 1
There is no risk of damaging the glass plate 6 and the glass plate 6 can be freely opened and closed.

[0011] Figure 4 shows another embodiment of the present invention Oh
You. The hinge 5 shown in FIG. 1 is configured separately from the bracket 4
On the other hand, as shown in FIG. 4, one side of the hinge 5 ' is integrated with the bracket 4', and the center of rotation of the hinge 5 ' is provided further inside the cab 1 than in FIG. Different. Therefore, the same components as in FIG. 1 among the components in FIG. 4 are denoted by the same reference numerals as in FIG. Although the effect produced in FIG. 4 is the same as that in FIG.
5 'and the bracket 4' attained is integral parts of the simplified.

[0012]

[Effect of the invention] As described above, for the construction machine of the invention.
According to the rear window structure of the cab, the glass that becomes the rear window of the cab
The plate is sandwiched between the iron plate and the holding member,
Window frame and window glass as before.
Arrange H-shaped rubber to kill, or sash frame
There is no need to arrange, and the rear window glass can be enlarged.
Wear. Therefore, the visibility behind the cab is improved.

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing one embodiment of a window structure of a construction machine according to the present invention.

FIG. 2 is an explanatory front view of a bracket part of FIG. 1;

FIG. 3 is a diagram illustrating a comparison between blind spots of the present invention (a) and a conventional blind spot (b).

FIG. 4 is a side view illustrating another embodiment of the window structure of the construction machine according to the present invention.

FIG. 5 is an explanatory view showing a conventional glass window on the rear surface of a cab.

FIG. 6 is an explanatory side view showing an example of a conventional glass window.

FIG. 7 is an explanatory side view showing another example of a conventional glass window.

[Explanation of symbols]

Reference Signs List 1 cab 2 outer surface 3 window hole 4, 4 ' bracket 5, 5' hinge 6 glass plate 7 seat plate 11 iron plate 12 holding member

Claims (1)

(57) [Scope of request for utility model registration] 1. A building in which the rear window glass of the cab can be freely opened and closed.
In a rear window structure of a cab for a construction machine, a seat plate integrally and partially formed on a rear side of the cab.
(7), one side is attached to this seat plate (7), and the other side is hinged.
A bracket (4) connected to one end of the jig (5), and a hinge;
An iron plate (11) connected to the other end of (5), and a holding member
(12) and a glass plate (6) inserted and sandwiched between
The glass plate (6) can be freely opened and closed with a hinge (5).
Cab for construction machinery, characterized in that:
Rear window structure.