ASEISMATIC DOOR - MIWA ROTSUKU KK

Title:

ASEISMATIC DOOR

Document Type and Number:

Japanese Patent JP2955210

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To automatically unlock a door when the door or a door frame is deformed to a fixed level or above by an earthquake and automatically open the door by converting the shock to the door or the door frame into the opening force of the door.
SOLUTION: A lock box 35 is provided retreatably in the unlocking direction by a lock box moving device S, protruded pieces 5, 5... are protruded toward a door 1 side at the inner periphery section of a door frame 2, and abutting members such as the first vertical link 61 and the first horizontal link 62 are provided on the door 1 side to face the protruded pieces 5. When an earthquake occurs and the door frame 2 or the door 1 is deformed, the lock box moving device S is operated by the contact between the protruded pieces 5 and the abutting members, and the lock box 35 is retreated to automatically unlock the door 1.

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Inventors:

NAKAMOTO SATORU

Application Number:

JP17321095A

Publication Date:

October 04, 1999

Filing Date:

July 10, 1995

Export Citation:

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Assignee:

MIWA ROTSUKU KK
TETSUYA KOGYO KK
SHINNITSUKEI KK

International Classes:

E06B5/00; E05B9/08; E05B47/00; E05B53/00; E05B63/24; E05B65/00; E05B65/10; E05C21/00; (IPC1-7): E06B5/00; E05B9/08; E05B47/00; E05B65/10; E05C21/00

Domestic Patent References:

JP94337A

Attorney, Agent or Firm:

Yoshihisa Nagai (1 outside)

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