Title:
HEAT INSULATING DOOR
Document Type and Number:
Japanese Patent JP3291336
Kind Code:
B2
Abstract:
PURPOSE: To provide a heat insulating door which dissolves rubbing and is tightly closed with a uniform force and is closed with a weak force without damaging heat insulating and sealing properties.
CONSTITUTION: A heat insulating door 1 opens and closes an aperture 102 of a storage box 101 like a hinged door with a pin 4 as the fulcrum and is provided with an inner door 2, which directly seals up the aperture 102, and an outer door 3 which supports the inner door 2 with a pair of supporting members 8 and 9 between them and is supported by the pin 4, and the outer door 3, the inner door 2, and the pair of supporting members 8 and 9 are used as a fixed link D, an intermediate link A, and a pair of side links B and C provided between true fixed link D and the intermediate link A, and these four links constitute a four-node rotating link mechanism.
Inventors:
Koji Yai
Application Number:
JP33220192A
Publication Date:
June 10, 2002
Filing Date:
November 19, 1992
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
G07F9/10; (IPC1-7): G07F9/10
Domestic Patent References:
| JP4241697A | ||||
| JP561084U |
Attorney, Agent or Firm:
Tomoo Takahashi
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