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Guide-rail structure of front window in working vehicle

A technology for engineering vehicles and guide rails, used in vehicle components, windows, buildings, etc., can solve problems such as increased cost and complex structure, and achieve the effect of simplifying the structure, ensuring sealing, and preventing premature wear.

Inactive Publication Date: 2012-03-21
SHIN CATERPILLAR MITSUBISHI LTD CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] On the other hand, the structure of Patent Document 2, as a device for vertically pressing the front window onto the sealing material, requires a plurality of components such as rods, springs, stoppers, stopper release bodies, etc., and has a complicated structure, The problem of increased cost, these are the problems to be solved by the present invention

Method used

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  • Guide-rail structure of front window in working vehicle
  • Guide-rail structure of front window in working vehicle
  • Guide-rail structure of front window in working vehicle

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0039] Hereinafter, embodiments of the present invention will be described based on the drawings. In the figure, 1 is a cab provided on a construction machine such as a hydraulic excavator, which is a substantially rectangular parallelepiped in this embodiment, and a window opening 2a is provided on the front face 2 of the cab 1 . In addition, reference numeral 3 denotes a front window for opening and closing the aforementioned window opening 2a. The front window 3 is constituted by assembling a transparent plate 3b such as a glass plate on the upper, lower, left, and right window frames 3a. A pair of left and right upper rollers 4 and lower rollers 5 are rotatably attached via brackets 6 and 7 and support shafts 8 and 9 . And these upper rollers 4 and lower rollers 5 are guided by a pair of left and right guide rails 10 described later, so that the front window 3 is accommodated in the ceiling portion of the cab 1 at the closed position of the window closing opening 2a, Open...

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PUM

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Abstract

To reduce frictional force at a corner and ensure sealability between the front window and a sealant when the front window is closed in a guide-rail for the front window in which a roller guide and a cable guide are juxtaposed. [MEANS FOR SOLVING PROBLEMS] A guiderail (10) is formed of a front guide-rail (10A), an upper guide-rail (10B) and a corner guide-rail (10C), wherein the front guiderail (10A) has a cable guide (10Ab) located on the front side of a roller guide (10Aa), the upper guiderail (10B) has a roller guide (10Ba) located on the upper side of a cable guide (10Bb) with the front portion of a roller guide (10a) being extended toward the front surface (2) of a cab, and the corner guide-rail (10C) is constituted such that a cable guide (10Cb) interconnecting the cable guides (10Ab, 10Bb) of the front and upper guide-rails is formed on the side of outer diameter of a roller guide (10Ca).

Description

technical field [0001] The invention relates to the technical field of front window guide rail structures in engineering vehicles such as hydraulic excavators. Background technique [0002] Generally, among the front windows provided on the cabs of engineering vehicles such as hydraulic excavators, some front windows have a structure that can be freely opened and closed at a closed position and an open position. The closed position closes the window opening in front of the cab. The above-mentioned open position is accommodated in the ceiling part of the cab and the opening for opening the window. Furthermore, in such a front window, in order to reduce the labor of the operator when opening and closing the front window, there is provided a front window with an auxiliary function configured in such a way that the front end side is connected to the lower part of the front window. The base end side of the auxiliary cable is wound around a winding device disposed at the rear of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60J1/00B60J1/04E02F9/16
CPCE02F9/163B60J1/04
Inventor 赤羽根英司田崎和重中岛正义高冈哲士山田晃廉平野智也原山雄介
Owner SHIN CATERPILLAR MITSUBISHI LTD CORP