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IT1254907B - Dispositivo frenante per utensile pneumatico a rotazione - Google Patents

Dispositivo frenante per utensile pneumatico a rotazione

Info

Publication number
IT1254907B
IT1254907B ITMI920964A ITMI920964A IT1254907B IT 1254907 B IT1254907 B IT 1254907B IT MI920964 A ITMI920964 A IT MI920964A IT MI920964 A ITMI920964 A IT MI920964A IT 1254907 B IT1254907 B IT 1254907B
Authority
IT
Italy
Prior art keywords
advanced
valve sleeve
braking
compression
braking device
Prior art date
Application number
ITMI920964A
Other languages
English (en)
Original Assignee
Nitto Kohki Co
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
Priority claimed from JP1991036483U external-priority patent/JP2537762Y2/ja
Priority claimed from JP3167562A external-priority patent/JP2800856B2/ja
Application filed by Nitto Kohki Co filed Critical Nitto Kohki Co
Publication of ITMI920964A0 publication Critical patent/ITMI920964A0/it
Publication of ITMI920964A1 publication Critical patent/ITMI920964A1/it
Application granted granted Critical
Publication of IT1254907B publication Critical patent/IT1254907B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/32—Non-positive-displacement machines or engines, e.g. steam turbines with pressure velocity transformation exclusively in rotor, e.g. the rotor rotating under the influence of jets issuing from the rotor, e.g. Heron turbines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/026—Fluid driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/06—Adaptations for driving, or combinations with, hand-held tools or the like control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/06—Adaptations for driving, or combinations with, hand-held tools or the like control thereof
    • F01D15/062—Controlling means specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/006—Arrangements of brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/90—Braking
    • F05D2260/902—Braking using frictional mechanical forces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/904—Tool drive turbine, e.g. dental drill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Braking Arrangements (AREA)

Abstract

In uno stato d'apertura di una valvola, quando un manicotto valvolare esterno (70) sia ruotato nella porzione posteriore di un alloggiamento (12), un manicotto valvolare interno (72) viene fatto avanzare a chiudere un canale (74) del fluido. Simultaneamente, un'estremità anteriore (66) del manicotto valvolare esterno (70) viene fatta avanzare mentre si attesta contro la superficie posteriore di un fermo (82). Pertanto, barre frenanti (85) sollecitate da molle elicoidali (89) di compressione vengono anch'esse fatte avanzare, e superfici anteriori (87) delle barre frenanti (85) vanno in battuta contro un disco frenante (92) per effettuare la frenatura, per cui la rotazione di un rotore (50) viene arrestata all'istante. La forza antagonista esercitata sul disco frenante (92) è la forza di compressione delle molle elicoidali (89) di compressione. Con un dispositivo frenante secondo la presente invenzione, si migliorano la sicurezza antinfortunistica dell'utensile pneumatico a rotazione e la lavorabilità.
ITMI920964A 1991-04-23 1992-04-23 Dispositivo frenante per utensile pneumatico a rotazione IT1254907B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1991036483U JP2537762Y2 (ja) 1991-04-23 1991-04-23 エアー回転工具のブレーキ装置
JP3167562A JP2800856B2 (ja) 1991-06-12 1991-06-12 エアーモータ

Publications (3)

Publication Number Publication Date
ITMI920964A0 ITMI920964A0 (it) 1992-04-23
ITMI920964A1 ITMI920964A1 (it) 1993-10-23
IT1254907B true IT1254907B (it) 1995-10-11

Family

ID=26375545

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI920964A IT1254907B (it) 1991-04-23 1992-04-23 Dispositivo frenante per utensile pneumatico a rotazione

Country Status (5)

Country Link
US (1) US5261233A (it)
KR (1) KR950001368Y1 (it)
DE (1) DE4213610C2 (it)
GB (1) GB2256232B (it)
IT (1) IT1254907B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9604553D0 (en) * 1996-03-02 1996-05-01 Black & Decker Inc Shaft locking device
DE19945491C2 (de) * 1999-09-22 2002-02-28 Mapal Fab Praezision Werkzeug zur spanabtragenden Bearbeitung von Werkstücken
JP3557174B2 (ja) * 2000-05-02 2004-08-25 三鷹光器株式会社 Ｍｒｉ用顕微鏡
DE20103600U1 (de) * 2001-03-01 2002-07-11 Schmid & Wezel GmbH & Co, 75433 Maulbronn Druckluftwerkzeug
US7077732B2 (en) * 2002-01-17 2006-07-18 Air Turbine Technology, Inc. High torque dual chamber turbine rotor for hand held or spindle mounted pneumatic tool
US6695573B2 (en) * 2002-04-05 2004-02-24 Cooper Technologies Company Hand-held turbine power tool
US6808340B2 (en) * 2002-09-06 2004-10-26 Prototype Productions, Inc. Tool apparatus
JP4685094B2 (ja) * 2004-04-30 2011-05-18 ジ アンスパック エフォート，インコーポレイテッド 外科用空気圧モータ
DE102004031628A1 (de) * 2004-06-30 2006-02-02 Robert Bosch Gmbh Vorrichtung mit einer Innenschale und einer Außenschale eines Gehäuses einer Handwerkzeugmaschine
MX2007006907A (es) * 2004-12-08 2008-01-28 Air Turbine Tech Inc Rotor de turbina de camara doble de gran par para herramienta neumatica portatil o instalada en arbol.
US20070007023A1 (en) * 2005-07-06 2007-01-11 Becker Paul A Rotatable pneumatic power tool and method for quickly stopping rotation of the same
DE202006005899U1 (de) * 2006-04-05 2007-08-09 Schmid & Wezel Gmbh & Co. Druckluftmotor für drehangetriebene Werkzeuge
US8192156B2 (en) * 2008-03-12 2012-06-05 X'pole Precision Tools Inc. Pneumatic turbine motor air chamber
KR101218161B1 (ko) * 2010-04-01 2013-01-03 주식회사 남선기공 일축 자동선회 헤드장치
WO2012019345A1 (en) * 2010-08-11 2012-02-16 Bosch Power Tools (China) Co., Ltd. Portable power tool with improved brake assembly
DE202010013939U1 (de) 2010-09-27 2010-12-23 Schmid & Wezel Gmbh & Co. Handwerkzeug mit einem Drehantrieb und einer Bremse
DE202010013938U1 (de) * 2010-09-27 2010-12-09 Schmid & Wezel Gmbh & Co. Handwerkzeug mit einem als Griffteil eingerichteten Gehäuse
EP3983171A4 (en) * 2019-06-12 2023-06-21 First Eastern Equities Limited DUAL SPEED ROTARY TOOL

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL290820A (it) * 1962-04-06
SE307262B (it) * 1962-07-06 1968-12-23 Soya Rederi Ab
US3128079A (en) * 1963-03-04 1964-04-07 Aro Corp Surgical turbine
ES130746Y (es) * 1966-07-02 1968-06-16 Veglia, S. A. E. Cuentagiros electronico, particularmente adecuado a motoresa explosion de vehiculos.
US3753469A (en) * 1969-07-15 1973-08-21 H Tuttle Air tool
US3712386A (en) * 1971-03-01 1973-01-23 R Peters Pneumatic hand tool having automatic collet and brake
BE788347A (fr) * 1971-09-20 1973-01-02 Baxter Laboratories Inc Trepan chirurgical pneumatique modulaire
US3945757A (en) * 1974-12-19 1976-03-23 Onsrud Machine Works, Inc. Turbine type air motor
US4032252A (en) * 1976-06-10 1977-06-28 Hollymatic Corporation Pressure gas engine
US4087198A (en) * 1977-01-03 1978-05-02 Hollymatic Corporation Speed governed rotary device
JPS6033931Y2 (ja) * 1980-02-19 1985-10-09 株式会社モリタ製作所 歯科用空気軸受タ−ビンの制御装置
US4491276A (en) * 1982-07-06 1985-01-01 Speeflo Manufacturing Corporation Electrostatic spray apparatus
US4772186A (en) * 1986-02-18 1988-09-20 The Aro Corporation Automatic fluid torque responsive shut-off mechanism for an air tool
US4776752A (en) * 1987-03-02 1988-10-11 Davis Lynn M Speed governed rotary device
US5186603A (en) * 1990-09-29 1993-02-16 Nitto Kohki Co., Ltd. Air motor

Also Published As

Publication number Publication date
KR950001368Y1 (ko) 1995-03-03
DE4213610A1 (de) 1992-10-29
ITMI920964A1 (it) 1993-10-23
GB2256232B (en) 1994-10-05
DE4213610C2 (de) 1998-02-19
GB9208833D0 (en) 1992-06-10
ITMI920964A0 (it) 1992-04-23
KR920019307U (ko) 1992-11-16
GB2256232A (en) 1992-12-02
US5261233A (en) 1993-11-16

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990430