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Lock with rotation sheet in lock and its key

A disc and arm technology, applied in the field of rotating disc arm locks, can solve the problem of low rigidity

Inactive Publication Date: 2010-06-09
MIWA LOCK COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] On the other hand, however, an undesired situation may occur that when turning the arm by forcefully inserting a non-matching key, the lever arm 11 will actually be bent because the metal material is made C-shape resulting in lower rigidity

Method used

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  • Lock with rotation sheet in lock and its key
  • Lock with rotation sheet in lock and its key
  • Lock with rotation sheet in lock and its key

Examples

Experimental program
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Embodiment Construction

[0074] The following will combine Figures 5 to 12 Preferred embodiments of the present invention will be described. According to the structure of the invention, the rotating disc rotating arm lock and Figures 1 to 4 The traditional lever arm lock shown is mainly different in the following two points, that is, the arm is designed to be circular instead of C-shaped when viewed from the direction of the central axis, and in addition, on the key blade of the matching key, a plurality of grooves are A keyway made along the side on the flat portion, not along the side end of the key blade.

[0075] Specifically, Figure 5 is a plan view showing the outline of the slot 7 of the rotary wafer tumbler lock according to one embodiment of the present invention. The slot 7 is formed between a plurality of partitions 3 connected together by a retainer 15 having a flange 16, as in a conventional lever arm lock.

[0076] In addition, a support pin 23 and a support pin 8 are respectively...

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PUM

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Abstract

A rotary circular sheet as the pivoted arm used for door lock has a big hole for allowing key to be inserted through it, an unlocking notch on the outside edge of its free end, and a projected boss for matching with the planar part and side edge of key. All pivoted arms can be turned in same direction. When each bosses are matched with the recess on key, their unlocking notches are aligned to theinternal side of lock bar.

Description

technical field [0001] This invention relates to a rotary disc tumbler lock and, furthermore, to a key for such a lock. [0002] Various types of cylinder locks are historically familiar to experts in the industry. The applicant of the present invention has provided a lever lock which is considered to have a high degree of security against pick picking and is the main product of this class. Background technique [0003] Traditional rotary lever arm locks such as figure 1 and 2 As shown, it includes an outer sleeve 2, a cam groove is formed along the generation line of its inner peripheral wall surface; an inner sleeve 5 is rotatably fitted in the outer sleeve, and has a plurality of partitions 3, 3 mutually and a keyhole 4 extending through the sleeve on the central axis; and a locking strip 6 extending along the generation line of the sleeve, said locking strip is suitable for the inner sleeve The outer peripheral surface is guided to move in the radial direction to pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05B29/08E05B19/06E05B29/02
Inventor 木野濑将明
Owner MIWA LOCK COMPANY