Title:
VIBRATION-PROOF BED OF AMBULANCE
Document Type and Number:
Japanese Patent JP3911753
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide the title bed which endures large loading of a stretcher during carrying in and out and does not damage always dumper function without making an actuator long and large.
SOLUTION: A bed is connected to a base plate with a link. A pair of front and back hydraulic actuators 10 for elevating/lowering the bed are made by inserting respectively a piston 12 into a cylinder 9 to form a pair of upper and lower oil rooms 17 and 18. The cylinders 9 are connected to the base plate and the rods 13 of the pistons 12 are connected to the bed. A direction switch valve 6 with the first output board 6b communicating with one side of a hydraulic pump 4 and an oil tank 2 and the second output board 6a communicating with another side and an auxiliary switch valve 8 are connected in series in a hydraulic circuit of the actuator 10. An accumulator 7 and the first output board 6b of the direction switch valve 6 are connected to the lower oil room 18 of the actuator 10 and one of the first and the second output boards 6a and 6b of the direction switch valve 6 is connected to the upper oil room 17 through the auxiliary switch valve 8.
Inventors:
Naofumi Kimura
Tsutomu Sonehara
Tsutomu Sonehara
Application Number:
JP3563897A
Publication Date:
May 09, 2007
Filing Date:
February 04, 1997
Export Citation:
Assignee:
Isuzu Motors Limited
International Classes:
A61G3/00; (IPC1-7): A61G3/00
Domestic Patent References:
| JP4210057A | ||||
| JP7228124A | ||||
| JP531140A | ||||
| JP531139A | ||||
| JP53893A | ||||
| JP1192353A |
Attorney, Agent or Firm:
Toshio Yamamoto
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