JPH04134569U - Front window of the operator's cab of construction equipment - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] The purpose is to widen the front view from the driver's cab by preventing the rubber from being lined up with the full-up glass frame of the front window of the driver's cab. do. [Structure] A driver's cab is mounted on one side of the swivel base, and a dam 4 is attached to a frame 2 having an edge slightly protruding from the glass 5 at the front window of the driver's cab, and the glass 5 is attached with an adhesive 6. The front window of the operator's cab of a construction machine is characterized by the fact that it is glued.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is based on the front window of the operator's cab of construction machinery, especially hydraulic power excavators equipped with a swivel platform. It is related to.

0002

[Conventional technology]

For pull-ups installed in the front window of the driver's cab of conventional hydraulic power excavators. The glass 60 is attached to a window frame 41 having an L-shaped cross section as shown in FIGS. 10 and 11. A window frame 5 having a structure in which the glass 43 is fixed with rubber 42 or a window frame 5 having a protrusion 51a 1 has a structure in which glass 53 is fixed with rubber 52.

0003 In addition, the underglass has a pair of locking devices, as shown in the perspective view in Figure and the cross section in Figure. The glass 63 is fixed with rubber 62 to the frame 61 to which the bracket 61a is attached. There is.

0004

[Problem that the idea aims to solve]

According to the above configuration, the pull-up glass uses the elasticity of the rubber to attach the glass to the window frame. Although it is tightened, if the pull-up is dropped, the glass will fall down due to the impact. If the dimensional accuracy of the glass and frame is poor, the support for the glass may be weak and the glass may There are problems such as falling or water leakage. Also, special techniques are required to attach the glass. It is difficult to automate as it requires a lot of skill, and the visibility is narrow because the window frame and trash are lined up in a straight line. Become.

[0005] The frame of the underglass has a concave cross section, so it is difficult to press. Productivity is poor, and since it has a concave shape, its strength is low and it easily deforms, and the frame is heavy. The ease of attaching and detaching is poor, and the frame and rubber are lined up in series, resulting in a narrow field of view. There are several problems, and the present invention aims to solve these problems.

[0006]

[Means to solve the problem]

In order to solve the above problem, the operator's cab is mounted on one side of the swivel base, and the Construction with pull-up glass mounted on the front window of the room so that it can slide up and down In the front window of the operator's cab of the machine, the glass is glued to the frame using an adhesive. The front window of the operator's cab of a construction machine, which is characterized by The building is equipped with a driver's cab and a removable underglass on the front window of the driver's cab. A locking device is installed on the underside glass of the front window of the operator's cab of a construction machine. The front window of the operator's cab of construction machinery is a distinctive feature.

[0007]

[Effect]

According to the above configuration, the field of view of the pull-up glass is widened, and the glass mounting It is easier to wear, and the underglass has no frame, giving you a wider field of vision.

[0008]

【Example】

Embodiments of the present invention will be described based on the drawings. Figure 1 is a perspective view of a hydraulic power shovel. 31 is mounted on the swivel base 21 attached to the traveling device 20 to one side. 22 is a working machine boom, and 23 is an engine room. Figure 2 is a perspective view of the driver's cab 30, in which the outer door 31 of the driver's cab 30 is attached; 32 is a front window. The front window 32 follows a guide rail (not shown) to the driver's cabin. It consists of a slideable pull-up glass 1 and an under glass 11 on the top of the 30. It is.

[0009] As shown in FIG. , attach dam 4 to frame 2, and glue between glass 5 and frame 2. The glass 5 and the frame 2 are bonded together using the adhesive 6. The edge 3 is attached to the glass. It protrudes slightly from the lath 5 to prevent the glass 5 from being damaged.

0010 The under glass 11 has a locking device 12 attached to the glass 13 with screws 14. ing. The locking device 12 allows the pin 12b to protrude by moving the lever 12a left and right. A device that can be pulled out or retracted to lock into or release from a hole in the body. It is a place. 5 is a cross section taken along line A-A in FIG. 4, and the rubber pad 14a is attached to the lower end of the glass 13. is attached.

[0011] FIG. 6 is a perspective view of the body 15 of the front window 32 into which the underglass 11 is fitted. Ru. A hole 16 is provided in the side wall of the body 15, and the pin 12b of the locking device engages with the hole 16. , and a pad 17 is also attached.

0012 7 shows the groove 18 provided in the body 15 in the BB cross section of FIG. The back glass 11 is fitted. The shape of the groove 18 is shown in FIGS. 7(a), (b), and (c). It can be of any shape.

[0013] Figure 8 shows the field of view of the pull-up glass 1 according to the present invention and the conventional pull-up glass. FIG. Dimensions of opaque parts such as rubber that reduce visibility Comparing L1, L2, and L3, the dimension L1 of the pull-up glass 1 according to the present invention is The size is smaller than L2 and L3.

[0014] Figure 9 shows the field of view of the underglass 11 according to the present invention and the conventional underglass 60. This figure is for comparison, and 19 is a seal. Other symbols refer to the above drawings. Since the same reference numerals as those used in the previous section indicate the same members, their explanation will be omitted. book on the right The field of view of the invented underglass 11 is wider by the dimension S than the conventional underglass 60. stomach.

[0015]

[Effect of the idea]

Since the present invention has the above-mentioned configuration, the visibility of the pull-up glass is wide. Both glasses are easier to install, and the under glass has no frame, improving visibility. becomes wider.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an ultra-small swing type hydraulic power shovel.

FIG. 2 is a perspective view of the driver's cab.

FIG. 3 is a diagram showing a pull-up glass 1. FIG.

FIG. 4 is a diagram showing the underglass 11. FIG.

FIG. 5 is a sectional view taken along line AA in FIG. 4;

FIG. 6 is a perspective view of the body 15 into which the underglass 11 is fitted.

7 is a cross-sectional view taken along line BB in FIG. 6, showing the shape of the groove 18. FIG.

FIG. 8 is a diagram for comparing the viewing aperture widths of pull-up glasses.

FIG. 9 is a diagram for comparing the width of the field of view of the underglass.

FIG. 10 is a diagram showing a conventional pull-up glass 60.

FIG. 11 is a diagram showing a cross section of a conventional pull-up glass 60.

FIG. 12 is a diagram showing a conventional underglass.

FIG. 13 is a diagram showing a cross section of a conventional underglass.

[Explanation of symbols]

1 Glass for pull-up 2 frames 5 Glass 6 Adhesive 11 Underglass 12 Locking device 13 Glass 21 Swivel base 30 Driver's cab 32 Front window

Claims (2)

[Scope of utility model registration request] [Claim 1] A front window of a driver's cab of a construction machine, in which a driver's cab is mounted on one side of a swivel base, and a pull-up glass is attached to the front window of the driver's cab so as to be slidable up and down. A front window of a driver's cab of a construction machine, characterized in that glass is bonded to the frame with an adhesive. [Claim 2] A locking device on the underglass in the front window of the operator's cab of a construction machine in which the operator's cab is mounted on one side of the swivel base, and the front window of the operator's cab is provided with a removable underglass. A front window of a driver's cab of a construction machine, characterized by having a.