Door opening device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12044042
APP PUB NO 20220228405A1
SERIAL NO

17609453

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Importance

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Abstract

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A door opening device for an access door includes an upper lock device, a lower lock device, and a handle device, the lower lock device has a first bias member for biasing a lower opening lever in an opposite direction to an unlocking direction, the handle device has a handle into which an unlocking operation is inputted, a first lever to which an upper cable and a lower cable are connected, a second lever which rotates in a first direction in response to an unlocking operation and transmits this rotation to the first lever, and a second bias member for restoring the second lever to an initial position, and the second lever has a play stroke defined between a point in time when the second lever starts to rotate from the initial position to a point in time when the second lever transmits the rotation to the first lever.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
MITSUI KINZOKU ACT CORPORATION1-1-2 TAKASHIMA NISHI-KU YOKOHAMA-SHI KANAGAWA 220-0011

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsuda, Yosuke Yokohama, JP 14 59
Taga, Takao Yokohama, JP 14 63
Takayama, Tatsuya Yokohama, JP 4 1

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