Common locking device for non-driving part of work vehicle

Abstract

The present invention comprises: a cylindrical common rotor which is installed to be rotatable within a fixed housing installed in a non-driving part of a work vehicle, the cylindrical common rotor having disc grooves and a pair of guide projections for guiding key insertion on the inner wall of the entrance of a key insertion hole; and disc-shaped tumblers which are ejectably mounted in the disc grooves of the cylindrical common rotor so as to be caught in a blocking groove of the fixed housing, the disc-shaped tumblers being configured such that a connection part at one side of a key channel having a one side opening becomes an arc-shaped detent which has a curvature smaller than the inner diameter of the rotary space, and such that a pair of release projections are formed to face each other on the inner peripheral surface of the opening, wherein the end of the detent is in contact with a mountain portion and a valley portion of a common key, the mountain portion and the valley portion being formed to be different from each other such that the end of the detent is not deeply caught in the blocking groove, so as to unlock the common rotor. Accordingly, it is possible to solve the problem of inconvenience in carrying several individual keys for unlocking the driving part and the non-driving part of the work vehicle. Also, it is possible to effectively maintain the non-driving part of the work vehicle so that the work vehicle can be systematically managed, thereby improving the quality of maintenance service.

Description

Technical field [0001] The present disclosure relates to a locking device for work vehicles. More specifically, the present disclosure relates to a common locking device for a non-driving part of a work vehicle, which allows a public key to be provided to a worker concerned about the non-driving part of the vehicle, so that the worker can control multiple work vehicles The non-driving part of the vehicle can be locked and unlocked, while allowing the use of a dedicated key configured to lock and unlock the driving part of a specific vehicle to lock and unlock the driving part of a specific vehicle. Background technique [0002] Generally, work vehicles include excavators and loaders used in construction or civil engineering sites for loading, digging, or dumping soil, sand, etc., and vehicles such as cranes and forklifts used in operations of moving or loading heavy objects. [0003] Traditional work vehicles must be equipped with a locking device to prevent the vehicle from being...

AI Technical Summary

Problems solved by technology

[0017] However, most of the conventional locking devices for work vehicles, including the above-mentioned prior art, aim at maximizing security against third party intrusion into the driving part and the non-driving part

[0018] To date, no means have been provided which allow common use of locking means on non-driving parts of a work vehicle, and no prior art methods related to this have been disclosed

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