Low-temperature storage

• US 20050138956A1
• Filed: 10/18/2004
• Published: 06/30/2005
• Est. Priority Date: 10/21/2003
• Status: Active Grant

• Current Assignee: PHC Holdings Corporation
• Original Assignee: Sanyo Electric Biomedical Company Limited (Panasonic Holdings Corporation), Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Okuda, Satoshi, Sakata, Yasushi, Watanabe, Yasuhide
• Granted Patent: US 7,654,107 B2
• Time in Patent Office: Days
• US Class Current: 62/441
• CPC Class Codes: E05F 7/005 Aligning devices for wings
• CPC Class Codes: E05F 7/06 Devices for taking the weight of the wing, arranged away from the hinge axis
• CPC Class Codes: E05Y 2900/31 for refrigerators
• CPC Class Codes: F25D 23/028 Details
• CPC Class Codes: F25D 2323/024 Door hinges

Abstract

An object is to provide a low-temperature storage cooled/maintained in an ultra low temperature range, in which door lowering is automatically modified (corrected) by an opening/closing operation of a thermal insulating door, and a concave/convex portion which is a contact portion with respect to a door switch disposed on the door can be secured, and there is provided a low-temperature storage comprising: a thermal insulation box main body having an opening in a front surface thereof; a thermal insulating door openably/closably attached to the thermal insulation box main body by a plurality of hinges to close the opening; and a cooling device which cools a storage chamber formed by the door and the main body, wherein a spacer having a guide surface to forcibly correct door lowering by a closing operation of the thermal insulating door is disposed on a side on which any hinge is not disposed.

Claims

1. A low-temperature storage comprising:

a thermal insulation box main body having an opening in a front surface thereof;

a thermal insulating door openably/closably attached to the thermal insulation box main body by a plurality of hinges to close the opening; and

a cooling device which cools a storage chamber formed by the door and the main body, wherein a spacer having a guide surface to forcibly correct door lowering by a closing operation of the thermal insulating door is disposed on a side on which any hinge is not disposed.

2. The low-temperature storage according to claim 1, wherein the spacer is disposed on the thermal insulating door.

3. The low-temperature storage according to claim 1, wherein the spacer is disposed on the thermal insulation box main body.

4. The low-temperature storage according to claim 1, wherein the spacer is constituted of a door-side spacer disposed on the thermal insulating door, and a main-body-side spacer disposed on the thermal insulation box main body, and is formed of a Duracon resin.

5. A low-temperature storage comprising:

a thermal insulation box main body having an opening in a front surface thereof;

a thermal insulating door openably/closably attached to the thermal insulation box main body by a plurality of hinges to close the opening; and

a cooling device which cools a storage chamber formed by the door and the main body, wherein a main-body-side spacer having;

a guide surface to forcibly correct door lowering by a closing operation of the thermal insulating door; and

a receiving portion to receive a door switch disposed on the lower surface of the thermal insulating door positioned on a side on which any hinge is not disposed, and formed of a resin is disposed on an opening edge of the thermal insulation box main body positioned on the side on which any hinge is not disposed.

6. The low-temperature storage according to claim 5, wherein the door switch is supported by a door-side spacer disposed on the lower surface of the thermal insulating door positioned on the side on which any hinge is not disposed.

7. The low-temperature storage according to claim 5, wherein the main-body-side spacer has a fixing hole in a rear part thereof, and a supporting protrusion on a front part thereof.

8. The low-temperature storage according to claim 5, wherein the receiving portion comprises:

an abutment surface having a tilt larger than that of the guide surface.

9. A low-temperature storage comprising:

a thermal insulation box main body having an opening in a front surface thereof;

a thermal insulating door openably/closably attached to the thermal insulation box main body by a plurality of hinges to close the opening; and

a cooling device which cools a storage chamber formed by the door and the main body, the storage further comprising;

a main-body-side spacer having a guide surface, disposed on an opening edge of the thermal insulation box main body positioned on a side on which any hinge is not disposed, to forcibly correct door lowering by a closing operation of the thermal insulating door, and a receiving portion to receive a door switch disposed on the lower surface of the thermal insulating door positioned on the side on which any hinge is not disposed; and

a door-side spacer, disposed on the lower surface of the thermal insulating door positioned on the side on which any hinge is not disposed, to abut on the guide surface by a closing operation of the thermal insulating door so that door lowering is forcibly corrected.