JPS648967A - Air mat apparatus - Google Patents

Air mat apparatus

Info

Publication number
JPS648967A
JPS648967A JP62166086A JP16608687A JPS648967A JP S648967 A JPS648967 A JP S648967A JP 62166086 A JP62166086 A JP 62166086A JP 16608687 A JP16608687 A JP 16608687A JP S648967 A JPS648967 A JP S648967A
Authority
JP
Japan
Prior art keywords
air
change
movable piece
under pressure
over
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62166086A
Other languages
Japanese (ja)
Other versions
JPH037384B2 (en
Inventor
Masatoshi Takeuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiken Co Ltd
Original Assignee
Seiken Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiken Co Ltd filed Critical Seiken Co Ltd
Priority to JP62166086A priority Critical patent/JPS648967A/en
Publication of JPS648967A publication Critical patent/JPS648967A/en
Publication of JPH037384B2 publication Critical patent/JPH037384B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Invalid Beds And Related Equipment (AREA)

Abstract

PURPOSE:To obtain an air mat apparatus simple in the structure of a change-over valve and capable of being inexpensively prepared by a mass production system, by changing over the expansion and contraction of an air cylinder by the change-over valve and driving the movable piece for changing over the change-over valve by an air bag. CONSTITUTION:When an air source H supplies compressed air to a mat main body in such a state that a movable piece 18 is present at the position pressed to the right, compressed air is introduced into an air cylinder (a) under pressure and an air cylinder (b) is allowed to communicate with the discharge hole 9 of a change-over valve to discharge the compressed air in said cylinder (b). As the compressed air is introduced into the air cylinder (a) under pressure, said compressed air is also introduced into the air bag 23 positioned on the right side of the movable piece 18 under pressure. When the air pressure in the air bag 23 becomes high, said air pressure presses the movable piece 18 to the left and the movable piece 18 is moved toward the left to reach the position shown by a broken line and the air cylinders (a), (b) are changed over. By this method, the change-over valve is changed over each time when air is introduced into the air cylinders (a), (b) by a necessary amount under pressure to repeat such a state that air is introduced into each of the air cylinders under pressure.
JP62166086A 1987-07-01 1987-07-01 Air mat apparatus Granted JPS648967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62166086A JPS648967A (en) 1987-07-01 1987-07-01 Air mat apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62166086A JPS648967A (en) 1987-07-01 1987-07-01 Air mat apparatus

Publications (2)

Publication Number Publication Date
JPS648967A true JPS648967A (en) 1989-01-12
JPH037384B2 JPH037384B2 (en) 1991-02-01

Family

ID=15824727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62166086A Granted JPS648967A (en) 1987-07-01 1987-07-01 Air mat apparatus

Country Status (1)

Country Link
JP (1) JPS648967A (en)

Also Published As

Publication number Publication date
JPH037384B2 (en) 1991-02-01

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