JPS5652501A - Pressure difference controller for pneumatic rotary machine - Google Patents

Pressure difference controller for pneumatic rotary machine

Info

Publication number
JPS5652501A
JPS5652501A JP12962579A JP12962579A JPS5652501A JP S5652501 A JPS5652501 A JP S5652501A JP 12962579 A JP12962579 A JP 12962579A JP 12962579 A JP12962579 A JP 12962579A JP S5652501 A JPS5652501 A JP S5652501A
Authority
JP
Japan
Prior art keywords
air
pressure
spool
input
pressure difference
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.)
Pending
Application number
JP12962579A
Other languages
Japanese (ja)
Inventor
Etsuzo Rokkaku
Yoshio Niwa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP12962579A priority Critical patent/JPS5652501A/en
Publication of JPS5652501A publication Critical patent/JPS5652501A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

PURPOSE: In a pneumatic rotary device to prevent an air tool of a dental service from coasting at a stop operation by providing a pressure difference controller which controls an input exhaust so as to run over a specific input pressure and immediately stop under it.
CONSTITUTION: In curing a tooth, once a foot valve 4 is stepped, an air pressure is supplied from a compressor 3 into an input circuit 10 in a pressure difference controller 9 through a hose 6 and a joint 7. If the air pressure is under a specific value, it is forced into circuit 13, 14 because a closed spool 21 blocks the air flow to a circuit 10'. When the air pressure rises up to the specific pressure, a valve 17 inside the spool 21 is opened and an air runs into an air room 20 to push the spool 21 downwards against a spring 15. Thereby, the input circuits 10, 10' and discharge circuits 11, 11' are communicated so the air tool 1 is rotated. On the other hand, immediately when the foot valve 4 is released, the spool 21 is opened to stop the tool 1.
COPYRIGHT: (C)1981,JPO&Japio
JP12962579A 1979-10-08 1979-10-08 Pressure difference controller for pneumatic rotary machine Pending JPS5652501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12962579A JPS5652501A (en) 1979-10-08 1979-10-08 Pressure difference controller for pneumatic rotary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12962579A JPS5652501A (en) 1979-10-08 1979-10-08 Pressure difference controller for pneumatic rotary machine

Publications (1)

Publication Number Publication Date
JPS5652501A true JPS5652501A (en) 1981-05-11

Family

ID=15014101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12962579A Pending JPS5652501A (en) 1979-10-08 1979-10-08 Pressure difference controller for pneumatic rotary machine

Country Status (1)

Country Link
JP (1) JPS5652501A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137150A (en) * 1984-07-30 1986-02-22 株式会社　モリタ製作所 Sudden stop apparatus of air bearing type handpiece
US4744752A (en) * 1984-07-30 1988-05-17 Kabushiki Kaisha Morita Seisakusho Dental handpiece control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137150A (en) * 1984-07-30 1986-02-22 株式会社　モリタ製作所 Sudden stop apparatus of air bearing type handpiece
US4744752A (en) * 1984-07-30 1988-05-17 Kabushiki Kaisha Morita Seisakusho Dental handpiece control device

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