JPH0514253U - Cab of construction machinery - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the visibility of the upper part while improving the shape of the cab of the hydraulic power shovel to prevent interference with the bucket of the working machine that can be offset to the left and right. [Structure] A work machine is attached to one side of the operator's cab mounted on one side of the swivel base, and in the operator's cab of the power shovel, the upper part of the front part of the operator's cab is tilted rearward, and extends over the inclined part and the upper horizontal part. A transparent part was provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cab of a hydraulic power shovel having a construction machine, in particular, a work machine capable of left and right offsetting on a swivel base.

[0002]

[Prior Art]

 As shown in FIG. 4, the cab of the conventional hydraulic power shovel has a substantially rectangular shape in which the front surface portion 21 and the upper horizontal portion 22 intersect at a substantially right angle. When the arm 23 is offset toward the cab 20 and the boom 24 is in the digging state and the arm 23 is in the digging state, the bucket 25 is laid in the cab 20.

[0003] a frame portion of the intersecting portion 26 cab 20 between the upper horizontal portion 22 and the front section 2 1 when viewed above the viewpoint P ₁ as shown in FIG. 5, placing a transparent window Does not appear, the blind spot angle β becomes large and the visibility of the upper part is poor.

[0004]

[Problems to be solved by the device]

 The problems to be solved are that the bucket interferes with the cab and that the blind spot is at a high position.

[0005]

[Means for Solving the Problems]

 In a driver's cab of a construction machine having a working machine that is displaced to one side of a swivel and equipped with a work machine capable of left and right offsets on the side of the driver's cab, the front upper part of the operator's cab is moved backward about 45 degrees. And the transparent part was provided over the inclined part and the upper horizontal part.

[0006]

[Action]

 The upper part of the front of the cab is tilted backward, and the transparent part is provided over the inclined part and the horizontal part of the upper part, so that the bucket does not interfere and the visibility of the upper part is improved.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a hydraulic power shovel, in which a swivel base 4 for swiveling around a vertical axis is provided on a traveling frame 3 having a traveling device 2, and a driver's cab 1 is mounted on the swivel base 4 while being moved to one side. (Usually the left side), the working machine 5 is mounted on the opposite side (right side), and the engine room 6 is provided in the rear part. The working machine 5 is composed of a first boom 5-1, a second boom 5-2, an arm 5-3, and a bucket 5-4. The arm 5 is operated by operating an offset cylinder (not shown). 3 can be offset to the left or right.

FIG. 2 is a sectional view taken along the line AA of the cab 1 in FIG. 1, and FIG. 3 is a perspective view of the cab 1. The operator's cab 1 has a box shape, and a front window 11a is slidably mounted on the front surface 11 of the operator's cab 1. The upper portion 11b of the front surface 11 is inclined rearward at an angle of about 45 degrees, and the upper water is slanted. It is continuous with the flat portion 12.

A transparent portion 13 is provided over the inclined upper portion 11 b and the upper horizontal portion 12, and the transparent portion 13 is made of glass or acrylic resin attached via a seal 14.

[0010]

[Effect of the device]

 Since the present invention is configured as described above, the bucket does not interfere with the driver's cab, and when the upper part is seen from the viewpoint P, the blind spot α is small and the visibility of the upper part is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a hydraulic power shovel.

FIG. 2 is a cross-sectional view taken along the line AA of the cab 1 in FIG.

FIG. 3 is a perspective view of a cab 1.

FIG. 4 is a diagram showing a driver's cab of a conventional hydraulic power shovel.

FIG. 5 is a diagram showing a blind spot when an upper portion is viewed from a viewpoint P.

[Explanation of symbols]

 1 Driver's cab 2 Traveling device 3 Traveling frame 4 Revolving platform 5 Working machine 11 Front surface 11a Front window 11b Upper part 12 Upper horizontal part 13 Transparent part 14 Seal

Claims (3)

[Scope of utility model registration request] 1. A driver's cab of a construction machine having a driver's cab mounted on one side of a revolving base, the operator's cab being mounted on the side of the driver's cab, and having a working machine capable of left / right offsetting on the side of the driver's cab. The operator's cab of the construction machine, which is tilted backward. 2. The operator's cab of the construction machine according to claim 1, wherein the angle inclined rearward is approximately 45 degrees. 3. The operator's cab of the construction machine according to claim 1, wherein a transparent portion is provided over the inclined portion and the upper horizontal portion.