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Wheel loader

A wheel loader and shaft installation technology, which is applied to earth movers/shovels, mechanically driven excavators/dredgers, construction, etc., can solve problems such as difficult to ensure vision, and achieve easy manufacturing and enlarged interior Spatial, easily configurable effects

Inactive Publication Date: 2009-09-30
KOMATSU LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Therefore, when the position of the cab is not so high and the mounting part of the bucket arm and the front frame is close to the cab like a relatively small wheel loader, the mounting part of the bucket arm and the front frame is not easy to operate. The proportion of people's field of vision is higher than that of large wheel loaders. It is still difficult to ensure a good field of vision only by the shape of the bucket arm. We hope to solve this problem

Method used

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Embodiment Construction

[0030] Next, an embodiment of the present invention will be described with reference to the drawings. figure 1 It is a side view showing the whole of the wheel loader 1 according to one embodiment of the present invention. figure 2 It is a plan view of the wheel loader 1 .

[0031] The running weight of the wheel loader 1 according to the present embodiment is about 2.5 tons, and the front frame 3 is hingeably attached to the front side of the rear vehicle body 2 . The rear vehicle body 2 is provided with rear wheels 4 and a cab 5, and accommodates a power transmission line (not shown). Front wheels 6 are provided on the front frame 3 , and a work device 7 is provided further ahead of the front frame 3 , and a bucket 8 is mounted on the front end of the work device 7 .

[0032] Among these, the work machine 7 includes a bucket arm 10 whose root end is connected to the upper side of the front frame 3 and whose front end is connected to the bucket 8 . The bucket arm 10 has a...

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Abstract

The present invention discloses a wheel loader that comprises a bucket boom (10) formed of a pair of right and left side members (11), a front frame (3) to which the base ends of the paired side members (11) are connected, and a boom cylinder the base end of which is connected to the front frame (3) and the tip end of which is connected to the side members. The interval W1 of the pair of side members (11) on the base end side is smaller than the interval W2 on the tip end side. A planar part (29) gradually tilted to the center in the lateral direction toward the upper side is formed on each of the right and left outermost parts of the front frame (3). A mounting boss (3A) to which the base end of the boom cylinder is attached is formed on the lower side of the planar part (29). A mounting boss (3B) to which the base end of the side member (11) is attached is formed on the upper side of the planar part (29).

Description

technical field [0001] The present invention relates to a wheel loader, in particular to the structure of a front frame arranged on a relatively small wheel loader. Background technique [0002] At present, in order to improve the field of view when viewed from the cab of a wheel loader, it has been proposed to improve the shape of a bucket arm (also referred to as a lift arm or a lift lever) constituting a work implement (Patent Documents 1 and 2). That is, by making it easy to see the bucket mounted in front of the work equipment, especially the left and right ends, from the operator's console, the bucket can be positioned quickly with respect to the body of the dump truck when loading soil and sand into the dump truck, thereby enabling good work to be performed. [0003] Specifically, in Patent Document 1, in a bucket arm composed of a pair of left and right members, the root end side of each member is connected to the front frame, and the front end side is connected to t...

Claims

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Application Information

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IPC IPC(8): E02F3/34
CPCE02F9/0841E02F3/3411
Inventor 盐路博之末永朗
Owner KOMATSU LTD
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