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Door lock release device for construction machinery

A technology of construction machinery and release device, which is applied to locks, building locks, vehicle locks and other directions operated by mechanical transmission, and can solve problems such as high difficulty and complicated assembly operations.

Active Publication Date: 2022-05-24
KOBELCO CONSTR MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the handles at the front and the door locks at the rear are connected to each other through the remote control part in the middle, and the assembly work will be extremely complicated and difficult.

Method used

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  • Door lock release device for construction machinery
  • Door lock release device for construction machinery
  • Door lock release device for construction machinery

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other Embodiment approach

[0051] The above-described embodiments of the present invention may adopt the following structures.

[0052] That is, in the above-described embodiment, the abutted portion is constituted by the abutted roller, but may be constituted by, for example, a member formed of a metal material or resin material that does not rotate and has high wear resistance instead of the roller.

[0053] In addition, in the above-described embodiment, the pressing plate 24 is provided separately from the operating arm portion 22 , but the bent portion on the proximal end side of the operating arm portion 22 may be brought into contact with the abutted portion.

[0054] In addition, in the above-mentioned embodiment, although the construction machine is a hydraulic excavator, it is not particularly limited as long as it is a construction machine with a door in the cab.

[0055] The door lock release device for a construction machine provided by the present invention includes: a lock device for lock...

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PUM

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Abstract

The present invention provides a door lock release device for a construction machine, comprising: a locking device for locking a door of a cab of the construction machine; an outer handle; and an inner handle for receiving an operation for unlocking the locking device from the inside of the cab. As the outer handle receives an operation for unlocking the locking device, the outer handle pulls the link to rotate the unlocking lever to unlock the locking device without rotating the inner handle.

Description

technical field [0001] This application is based on Japanese Patent Application Laid-Open No. 2018-148420 filed with the Japan Patent Office on August 7, 2018, the contents of which are incorporated herein by reference. Background technique [0002] The present invention relates to a door lock release device for construction machinery. [0003] As a door lock release device for a construction machine, a technique disclosed in Japanese Patent Application Laid-Open No. 2018-9369 is known. In this technology, the inner handle which can be rotated around a predetermined rotation axis has: an operation arm part that applies a rotation operation to the inner handle; a release arm part that performs an unlocking operation of the locking device in accordance with the rotation operation of the inner handle; The connecting arm portion of the link connected to the outer handle, along with the unlocking operation of the outer handle, the outer handle rotates the inner handle via the li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05B79/22E02F9/16
CPCE05B79/22E02F9/163E05B83/42E05B53/00E05B63/0056E05B79/16E05B85/02E05B85/12E05Y2900/518E05Y2900/531
Inventor 野田刚
Owner KOBELCO CONSTR MASCH CO LTD