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Cylindrical lock

A cylinder lock, cylinder-shaped technology, applied in the field of improved cylinder lock, to achieve the effect of smooth movement

Active Publication Date: 2016-10-26
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Examples

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Embodiment Construction

[0042] Hereinafter, embodiments of the present invention will be described based on the drawings.

[0043]

[0044] refer to figure 1 . figure 1 shows a cylinder lock 10 provided on the steering column of a vehicle.

[0045] The cylinder lock 10 includes: a rotor housing 11, which excavates the inner circumference in a cylindrical shape; a key rotor 12, which is held rotatably on the inner circumference of the rotor housing 11; five stoppers 31-35, which are The five tumbler holes 21 to 25 formed on the outer peripheral surface 14 of the key rotor 12 can be applied with force; the cover 13 is attached to the front end of the key rotor 12; and the steering lock operation part 40 is passed through A key inserted from the cover 13 can switch between locking and unlocking the steering wheel.

[0046] Five tumbler holes 21 to 25 are alternately formed on the upper portion and the lower portion of the key rotor 12 . Hereinafter, for convenience of explanation, the tumbler hole...

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Abstract

The invention provides a technique that when a cylindrical lock is operated by a key having a groove for key verification which is formed in a blade surface, and a smooth action of a brake stopper can be ensured even if dust intrudes into a brake stopper action zone. In a cylindrical lock (10) into which A key (70) having a groove (51) for key authentication which is formed in a blade surface (73) is inserted, a rotatable cylindrical key rotor (12) is arranged in the inner part of a rotor housing (11), and a plurality of brake stopper holes (21-25) are formed in an outer peripheral surface (14) of the key rotor (12). In the plurality of brake stopper holes (21-25), compared with the brake stopper hole (21) nearest to an end of a key inserting side of the key rotor (12) and other brake stopper holes (22-25), the key rotor has a wider width in the axial direction.

Description

technical field [0001] The invention relates to an improved cylinder lock. Background technique [0002] Cylinder locks are used in the doors and ignition key of many vehicles. As a prior art related to such a cylinder lock, there is a technology disclosed in Patent Document 1. [0003] In the cylinder lock disclosed in Patent Document 1, a rotatable cylindrical key rotor is provided inside the rotor case, and a plurality of tumblers are provided so as to protrude from the tumbler holes of the key rotor toward the rotor case. . In the insertion hole into which the key is inserted, a convex portion is formed along the groove of the key. [0004] When the dust or dust adhering to the groove of the key invades into the operation area of ​​the tumbler, the dust or dust may get caught between the tumbler and the tumbler hole. If the key is inserted and removed while the key is kept engaged, it will be rubbed against dust and dust to wear the various parts. In this regard, ac...

Claims

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Application Information

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IPC IPC(8): E05B29/04E05B17/00E05B15/14E05B15/00
CPCE05B15/00E05B15/14E05B17/002E05B29/00
Inventor 浦川雅丞须田智柴崎博之
Owner HONDA MOTOR CO LTD
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