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GB1070051A - Pneumatic percussion machine - Google Patents

Pneumatic percussion machine

Info

Publication number
GB1070051A
GB1070051A GB1831/65A GB183165A GB1070051A GB 1070051 A GB1070051 A GB 1070051A GB 1831/65 A GB1831/65 A GB 1831/65A GB 183165 A GB183165 A GB 183165A GB 1070051 A GB1070051 A GB 1070051A
Authority
GB
United Kingdom
Prior art keywords
piston
air
valve
cylinder
resilient
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
GB1831/65A
Inventor
Adolf Cast
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
Publication of GB1070051A publication Critical patent/GB1070051A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
    • B25C1/047—Mechanical details
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/10—Power-driven drivers with pressure-actuated hammer, i.e. the pressure fluid acting directly on the hammer structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

1,070,051. Nailing and stapling machines. K. REICH. Jan. 15, 1965, No. 1831/65. Heading B4C. A pneumatic percussion machine such as for nailing or stapling, comprises a percussion piston 4 controlled during its working stroke by a valve 21, means 7, 8 for returning the piston after its working stroke, and a holding device for retaining the piston in its rest position including an element 26 made at least partly from a rubber-like resilient material and adapted to interengage with a locking means 4<SP>11</SP>. The piston 4 is slidable in a cylinder 5 surrounded by a sleeve 6 so as to define an annular chamber 8 communicating with the space below the piston via holes 7. In operation, upon actuation of the valve 21, compressed air is fed via an inlet 17, chamber 16, passage 22 to act on the top of the piston until the pressure reaches a value at which the locking means 4<SP>11</SP> disengages itself from the resilient element 26 and thus causes a driver 14 to drive in a nail 13<SP>1</SP>. During the downward stroke the air below the piston is forced via the holes 7 into the chamber 8 where it is compressed so that when the valve is closed, the piston is returned to its rest position. In a modification, the resilient element 26 is replaced by a resilient ring located in a groove in the piston and engaging with a groove formed in the wall of the cylinder. In the modification shown in Fig. 3, the resilient element is formed with a flange 236 secured to a piston member 237 which in the rest position of the machine is acted upon by compressed air via a port 257 and pipe 254 so as to force the flange 236 into contact with the end of the cylinder. When the valve 256 is actuated, the flow of air to the piston 237 is cut off, thereby allowing the flange to lift away from the end of the cylinder and so cause the percussion piston to be driven downwardly; the air above the piston is prevented from escaping to atmosphere by means of a pin 243 engaging in a hole 242 in the element 236. In a further embodiment (Fig. 5) the resilient element (326) is adapted to be expanded into locking engagement with the percussion piston 304 by means of air fed into the interior of the element via a pipe (354) and a port (363) in a pin (366).
GB1831/65A 1964-12-24 1965-01-15 Pneumatic percussion machine Expired GB1070051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6415071A NL6415071A (en) 1964-12-24 1964-12-24

Publications (1)

Publication Number Publication Date
GB1070051A true GB1070051A (en) 1967-05-24

Family

ID=19791732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1831/65A Expired GB1070051A (en) 1964-12-24 1965-01-15 Pneumatic percussion machine

Country Status (4)

Country Link
US (1) US3397617A (en)
FR (1) FR1421020A (en)
GB (1) GB1070051A (en)
NL (1) NL6415071A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490341A (en) * 1968-03-27 1970-01-20 Applied Power Ind Inc Hydraulic ram
US3871566A (en) * 1972-07-25 1975-03-18 Behrens Friedrich Joh Fastener driver tools
DE2339162C2 (en) * 1973-08-02 1975-04-03 Karl M. Reich, Maschinenfabrik Gmbh, 7440 Nuertingen Locking device for pneumatic nailers to catch and hold the impact piston
US5181450A (en) * 1991-05-16 1993-01-26 Umberto Monacelli Pneumatic fastener driving apparatus with piston holding detent
EP0584395A1 (en) * 1992-08-28 1994-03-02 Umberto Monacelli Pneumatic fastener driving apparatus with an improved piston
US5540138A (en) * 1993-09-02 1996-07-30 Robbins, Jr. ; Roland W. Lockup and release device
EP0684108A1 (en) * 1994-05-20 1995-11-29 Umberto Monacelli Fastener driving apparatus with improved pneumatic operation
US5860580A (en) * 1996-05-03 1999-01-19 Illinois Tool Works Inc. Piston retention device for combustion-powered tools
US20040159695A1 (en) * 2002-08-23 2004-08-19 Chu-Kuo Wang Nail stapler
US20070114260A1 (en) * 2005-11-18 2007-05-24 Petrocelli Michael V Spring powered linear return mechanism
JP2007222989A (en) * 2006-02-23 2007-09-06 Max Co Ltd Drive piston holding structure in gas nailer
DE102008029016B4 (en) * 2007-07-18 2012-12-06 Stabilus Gmbh Piston-cylinder assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2024042A (en) * 1935-09-12 1935-12-10 Jance Joseph Safety device
US2914033A (en) * 1956-07-23 1959-11-24 Powers Wire Products Company I Air operated tool and valve therefor
US3104395A (en) * 1957-11-22 1963-09-24 Jr Hugh M Grey Automatic nailer
DE1172194B (en) * 1958-12-24 1964-06-11 Reich Maschf Gmbh Karl Compressed air device for driving nails
US2983922A (en) * 1959-04-27 1961-05-16 Senco Products Portable stapler with pneumatic drive and return
DE1225120B (en) * 1961-03-15 1966-09-15 Behrens Friedrich Joh Compressed air device for driving fasteners, e.g. B. nails or U-shaped brackets
DE1253196B (en) * 1961-06-29 1967-10-26 Behrens Friedrich Joh Compressed air operated device for driving in fasteners such as staples, nails, etc. like

Also Published As

Publication number Publication date
FR1421020A (en) 1965-12-10
NL6415071A (en) 1966-06-27
US3397617A (en) 1968-08-20

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