JP2001354090A - Device for crushing pane of operation cab - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paned window crushing device for a construction machine adaptable to be mounted on an existing paned window and capable of accurately crushing the paned window in a simple operation. SOLUTION: A holder 6 is fixed to a paned window frame portion 5 in the operation cab of a construction machine. A paned window crusher 7 is mounted on the holder 6. Operating means such as a knob 9 is provided for the paned window crusher 7 to strike a pane in a manual operation. Detachable restricting means 10 is provided for preventing the paned window from being struck by the paned window crusher while restricting the position of the paned window crusher 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for crushing glass windows in an operator's cab for emergency escape in a construction machine including a hydraulic shovel, a crane, or a machine applied with the same.

[0002]

2. Description of the Related Art In construction machines such as hydraulic excavators,
An operator's cab is covered with a building, and an operator may be forced to break out of the operator's cab by crushing the glass window in an emergency such as when the machine is submerged or falls.

As an apparatus for crushing a glass window in such an emergency, there is a hammer 2 for crushing a glass window provided near a glass window 1 as shown in FIG. This is to crush the glass window by hitting it with the hammer 2 in an emergency.

On the other hand, JP-A-6-49551 discloses that
In some cases, the glass window is usually fixed to the frame by a regulation release pin, and in an emergency, the pin is pulled out to open the glass window.

In Japanese Patent Application Laid-Open No. 9-263124, a band-like holding member is superimposed on the periphery of a glass window, and the band is fixed by a fixing means in an emergency, and the fixing is released in an emergency. An arrangement configured to open a window is disclosed.

[0006]

In the case of using the hammer 2, when escape is required, two operations are required: removing the hammer 2 from the window frame and holding the hammer 2 in a hand, and hitting the glass window. However, it is disadvantageous in an emergency. Also, if you hit the hammer 2 against the glass window,
If the tip of the hammer 2 is not brought into contact with the glass window 1, the glass window 1 cannot be crushed, and no skill is required. Further, since the operator is confused, the hammer 2 may be dropped. There is a possibility that the glass window 1 cannot be crushed.

On the other hand, as described in Japanese Patent Application Laid-Open No. 6-49551, a pin is pulled out in an emergency to open a glass window, or as described in Japanese Patent Application Laid-Open No. 9-263124, The one in which the belt-shaped fixing means is released to open the glass window has a problem that it cannot be applied to an existing glass window.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a glass window crushing apparatus for a construction machine which can be attached to an existing glass window, and can easily and surely crush the glass window with a simple operation in an emergency. The purpose is to provide.

[0009]

SUMMARY OF THE INVENTION The present invention provides a holder fixed to a glass window frame of a cab of a construction machine, a glass window crusher attached to the holder, and a glass window crusher attached to the glass window crusher. Operating means for manually striking the glass window crushing tool against the glass, and a detachable regulating member for regulating the position of the glass window crushing tool and preventing the glass window crushing tool from hitting the glass window. It is characterized by having.

[0010] In the glass window crushing apparatus of the present invention, the glass window crushing tool is crushed against the glass window by an operation such as releasing the regulating member and hitting the operating means.

[0011]

FIG. 1 is a side view of a hydraulic excavator which is an example of a tracked vehicle having a glass window crushing apparatus according to the present invention. In FIG. 1, 3 is an operator's cab, 1 is a glass window provided in the operator's cab 3, and 4 is a glass window crusher. In the present embodiment, the glass window crushing device 4 is attached to the side surface of the cab, but may be the rear surface or the front surface.

FIG. 2 is an exploded perspective view showing an embodiment of the glass window crushing apparatus 4 according to the present invention, FIG.
(A)-(C) is sectional drawing which shows the cross-section of this glass window crushing apparatus 4, and a glass window crushing procedure.

As shown in FIGS. 2 and 3, a glass window crushing apparatus 4 according to the present embodiment includes a resin holder 6 fixedly attached to a frame portion 5 on which the glass window 1 is mounted.
A glass window crushing tool 7 attached to the glass window crushing tool 7, a knob 9 fixed to the glass window crushing tool 7 with screws 8 and the like, and a movement of the knob 9 to the window side to prevent the glass window crushing. And a regulating member 10 for regulating the position so that the tool 7 does not contact the glass window 1.

The glass window crushing tool 7 has a sharp crushing portion 7a at the tip, a large diameter portion 7b, and a rod portion 7c in this order, and the crushing portion 7a and the large diameter portion 7b are connected to the glass window of the holder 6. 1
By fitting into the large-diameter hole 6a on the side of the
Is fitted into the small-diameter hole 6b, and the glass window 1
It is mounted so that it can protrude to the side and cannot be pulled out indoors. The regulating member 10 is interposed between the knob 9 and the holder 6.
Has a groove 10a fitted to the rod 7c. In addition, a retaining projection 10b is provided at an intermediate portion of the groove 10a.

In this configuration, as shown in FIG. 3A, the regulating member 10 is normally fitted with its groove 10a fitted to the rod portion 7c of the glass window crushing tool 7, as shown in FIG.
In this state, the operation of the regulating member 10 prevents the glass window crushing tool 7 from projecting toward the glass window 1.

In an emergency such as when submerged or when the machine falls, as shown in FIG. 3 (B), the regulating member 10 is manually removed, and then the knob 9 is manually beaten.
The crushing part 7a at the tip of the glass window crushing tool 7 is hit against the glass window 1 so that the glass window 1 can be broken.

In this case, the glass window crusher 7 is
The glass window 1 is fixed to the holder 6 and fixed to the opposite side of the glass window crushing tool 7 so that the glass window 1 is reliably and easily crushed by hitting with the knob 9. Further, since the glass window crushing tool 7 is housed in the holder 6, there is no risk of loss.

FIG. 4 shows another embodiment of the glass window crushing apparatus according to the present invention. In the present embodiment, the glass window crushing tool 11 has a lever shape, the crushing portion 11a at the tip thereof is bent into a hook shape, and the intermediate portion thereof is attached to a holder 12 fixed to the outdoor surface of the frame portion 5. The shaft 14 b of the knob 14, which is rotatably mounted by the pin 13 and is inserted into the hole 5 a of the frame 5, is connected to the base end side of the glass window crushing tool 11 by the pin 15. It is located on the inside, and the regulating member 10 shown in FIGS. 2 and 3 is interposed between the head 14 a and the frame 5.

In the configuration shown in FIG. 4, in the case of emergency, the regulating member 10 is removed and the knob 14 is beaten, whereby the glass window crushing tool 11 is rotated from the solid line position to the position indicated by the two-dot chain line and the tip of the glass window crusher 11 is rotated. The glass window 1 is crushed by the crushing unit 11a. Also in the present embodiment, the glass window 1 can be easily and reliably crushed similarly to the above-described embodiment.

When the lever-shaped glass window crushing tool 11 as shown in FIG. 4 is used, the glass window crushing tool 11 may be provided on the indoor side. The present invention is not limited to hydraulic excavators and cranes, various excavators, cargo handling machines,
It can be applied to construction machines such as crushers.

[0021]

Since the glass window crushing apparatus of the present invention is mounted on the frame of the glass window, there is no need to change the structure of the window itself, and the apparatus can be mounted on an existing glass window. In addition, since the glass window crusher is attached to the holder, there is no danger of dropping in an emergency, and a simple operation such as beating the operating means by removing the regulating member can easily and without failing the glass window. It can be crushed reliably.

[Brief description of the drawings]

FIG. 1 is a side view of a hydraulic shovel as an example of a tracked vehicle having a glass window crushing device of the present invention.

FIG. 2 is an exploded perspective view showing one embodiment of a glass window crushing apparatus according to the present invention.

FIGS. 3A to 3C are cross-sectional views illustrating the structure of a glass window crushing apparatus and a procedure of crushing a glass window according to the present embodiment.

FIG. 4 is a cross-sectional view showing another embodiment of the glass window crushing device according to the present invention.

FIG. 5 is a perspective view showing a conventional glass window crusher.

[Explanation of symbols]

1: glass window, 3: driver's cab, 4: glass window crusher,
5: Frame part, 6: Holder, 7: Glass window crusher, 8: Screw, 9: Knob (operating means), 10: Restriction member, 11: Glass window crusher, 12: Holder, 13: Shaft, 14: Knob (operation means), 15: pin

Claims (1)

[Claims] A holder fixed to a glass window frame of a cab of a construction machine; a glass window crusher attached to the holder; and a glass window crusher attached to the glass window crusher, which is manually operated to operate the glass. A driver's cab, comprising: operating means for hitting the window crushing tool against the glass; and a detachable regulating member for restricting the position of the glass window crushing tool to prevent the glass window crushing tool from hitting the glass. Glass window crushing equipment.