GB979744A - Powered impact tools - Google Patents

Powered impact tools

Info

Publication number
GB979744A
GB979744A GB529663A GB529663A GB979744A GB 979744 A GB979744 A GB 979744A GB 529663 A GB529663 A GB 529663A GB 529663 A GB529663 A GB 529663A GB 979744 A GB979744 A GB 979744A
Authority
GB
United Kingdom
Prior art keywords
air
holder
anvil
tool
piston
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.)
Expired
Application number
GB529663A
Original Assignee
Mikiya Toshio
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 to JP3257262 priority Critical
Application filed by Mikiya Toshio filed Critical Mikiya Toshio
Publication of GB979744A publication Critical patent/GB979744A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D9/00Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06Means for driving the impulse member
    • B25D9/08Means for driving the impulse member comprising a built-in air compressor, i.e. the tool being driven by air pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/02Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
    • B08B7/022Needle scalers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • B25D17/02Percussive tool bits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D9/00Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14Control devices for the reciprocating piston
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D2250/00General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/275Tools having at least two similar components
    • B25D2250/285Tools having three or more similar components, e.g. three motors
    • B25D2250/291Tools having three or more parallel bits, e.g. needle guns

Abstract

979,744. Percussive tools. T. MIKIYA. Feb. 8, 1963 [Aug. 7, 1962], No. 5296/63. Heading B4C. A compressed air-actuated percussive tool comprises a rear cylinder 1 in which a hammer piston 22 slides, a front cylinder 2, a toolholder 35 slidable in the front cylinder, air passages 15, 15<SP>1</SP>, 16 formed in the walls of the cylinders, valve means 8 controlling the supply of air to the passages, an inlet port 30 and exhaust port 32 for admitting and exhausting air from the rear of the piston when the latter is in a retracted and advanced position respectively, a port 41 for introducing compressed air from the passage 16 into air passages 40 in the holder when it is in its advanced position, an anvil 34, and exhaust ports 32, 44 for connecting the spaces above and below the anvil to atmosphere. The retracted position of the piston 22, anvil 34 and tool-holder 35 is as shown in Fig. 2, so that in operation, when the valve 8 is opened by means of a lever 9 compressed air is fed via a passage 18, ports 15, 15<SP>1</SP>, 30, 29 into a bore 23 in the piston to thereby drive the latter against anvil which, in turn, strikes the tool-holder 35. Towards the end of the stroke of the tool-holder, the air is fed via the passage 16, port 41 and ports 40, 40<SP>1</SP> in the tool-holder into a space defined by a shoulder 42 on the front cylinder and the adjacent end face of the holder, the air trapped in the space providing a cushion effect. When the stroke of the holder is completed as shown in Fig. 1, air in the passage 16 communicates with the ports 40, 40<SP>1</SP> via the port 41 and thereby returns the holder. The piston 22 is returned partly under its own weight and partly by the force, transmitted via the anvil, of the expansion of air in the end spaces.
GB529663A 1962-08-07 1963-02-08 Powered impact tools Expired GB979744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3257262 1962-08-07

Publications (1)

Publication Number Publication Date
GB979744A true GB979744A (en) 1965-01-06

Family

ID=12362598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB529663A Expired GB979744A (en) 1962-08-07 1963-02-08 Powered impact tools

Country Status (4)

Country Link
US (1) US3223182A (en)
CH (1) CH406097A (en)
DE (1) DE1286980B (en)
GB (1) GB979744A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680643A (en) * 1969-03-01 1972-08-01 Nitto Kohki Co Fluid actuated tool having removable coil spring biasing means
GB2141658A (en) * 1983-05-14 1985-01-03 Toshio Mikiya Multi-needle chisel tool
GB2142267A (en) * 1983-07-01 1985-01-16 Nilsson Goran Alfred Improvements in or relating to pressure medium operated needle hammers

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349461A (en) * 1966-03-11 1967-10-31 Ingersoll Rand Co Descaling tool
FR2330507A1 (en) * 1975-11-04 1977-06-03 Montabert Roger Percussion machine
JPS6334864Y2 (en) * 1983-04-15 1988-09-14
US4878550A (en) * 1988-07-15 1989-11-07 Sandvik Rock Tools, Inc. Pilot-valve-controlled percussion drilling tool
US5138909A (en) * 1990-08-01 1992-08-18 Daniels Manufacturing Corporation Hand-held, pneumatic wire stripping tool
DE4414342A1 (en) * 1994-04-25 1995-10-26 Hilti Ag Handheld device for removing surfaces
US20040135283A1 (en) * 2003-01-14 2004-07-15 Myers Michael W. Method of making vase/container having a weathered appearance
US7013986B2 (en) * 2003-05-12 2006-03-21 Nitto Kohki Co., Ltd. Impact tool
US7819876B2 (en) * 2005-10-25 2010-10-26 Zimmer Technology, Inc. Orthopaedic pin driver
US7886840B2 (en) * 2008-05-05 2011-02-15 Ingersoll-Rand Company Motor assembly for pneumatic tool
US8122907B2 (en) 2008-05-05 2012-02-28 Ingersoll-Rand Company Motor assembly for pneumatic tool
US9592600B2 (en) 2011-02-23 2017-03-14 Ingersoll-Rand Company Angle impact tools
US8925646B2 (en) 2011-02-23 2015-01-06 Ingersoll-Rand Company Right angle impact tool
US20130086970A1 (en) * 2011-10-06 2013-04-11 PeenMet Linear Motion Peening
US9022888B2 (en) 2013-03-12 2015-05-05 Ingersoll-Rand Company Angle impact tool
US20160271778A1 (en) * 2015-03-21 2016-09-22 Chih Kuan Hsieh Fixing Structure for Cylinder

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US842655A (en) * 1904-07-28 1907-01-29 Martin Hardsocg Pneumatic hammer.
US1076246A (en) * 1912-03-04 1913-10-21 Grant W Smith Rock-drill.
US1583288A (en) * 1921-10-27 1926-05-04 George H Gilman Drilling machine
US1747164A (en) * 1927-01-04 1930-02-18 Ingersoll Rand Co Air-return dolly
US2356314A (en) * 1942-11-23 1944-08-22 C W West Scaling tool
US2613647A (en) * 1947-09-08 1952-10-14 Joy Mfg Co Rock drill
US2672129A (en) * 1949-03-17 1954-03-16 Chicago Pneumatic Tool Co Chipping hammer
DE881780C (en) * 1950-11-01 1953-07-02 P Von Arx & Co A G Haemmer device for the treatment of metal surfaces od. Like., Z. B. for derusting
US2672677A (en) * 1950-11-01 1954-03-23 P Von Arx & Co A G Scale remover
US3023485A (en) * 1958-05-16 1962-03-06 Barthod Edouard Scouring apparatus
FR1255632A (en) * 1960-04-12 1961-03-10 Air hammer with multiple hitting elements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680643A (en) * 1969-03-01 1972-08-01 Nitto Kohki Co Fluid actuated tool having removable coil spring biasing means
GB2141658A (en) * 1983-05-14 1985-01-03 Toshio Mikiya Multi-needle chisel tool
GB2142267A (en) * 1983-07-01 1985-01-16 Nilsson Goran Alfred Improvements in or relating to pressure medium operated needle hammers

Also Published As

Publication number Publication date
DE1286980B (en) 1969-01-09
US3223182A (en) 1965-12-14
CH406097A (en) 1966-01-15

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