Title:
【発明の名称】寝台装置
Document Type and Number:
Japanese Patent JP2874340
Kind Code:
B2
Abstract:
PURPOSE:To enable a top plate to increase in strength by connecting a wire rope to the rear end of a compression spring, providing the wire rope and a fixture which is projectedly installed on a lower face of a ramp, and making a large shift quantity of the horizontal direction component of link displacement. CONSTITUTION:A compression spring 18 has its one end connected to the lower part of a rear link below the connection fulcrum of an X link 7, and the spring 18 has the other end connected to an upper rear pin or to an upper front pin through an extension spring over a lower front pin and an upper front pin. A wire rope 11 is provided which is connected to the rear end of the compression spring 18 and a fixture 16 is provided which is projectedly installed on a lower face of a ramp 4 connected to the wire rope 11. When a driving means 8 is started and the X link 7 is stood, the upper and lower rear pins are moved forward through the quide of slide receptions 3, 6 and the ramp 4 is lifted and then the upper horizontal part of the wire rope 11 is moved forward and at the same time the other end of the wire rope 11 is shifted forward. This enables a top plate to decrease in an overhang quantity from the ramp 4 and to increase in strength.
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Inventors:
MITSUMATA HIROSHI
Application Number:
JP34087490A
Publication Date:
March 24, 1999
Filing Date:
November 30, 1990
Export Citation:
Assignee:
SHIMAZU SEISAKUSHO KK
International Classes:
A61B5/055; A61B6/03; (IPC1-7): A61B6/03; A61B5/055
Domestic Patent References:
| JP6041955A | ||||
| JP4166136A | ||||
| JP646938U |
Attorney, Agent or Firm:
Inukai Shinpei