US3638532A - Fastener driving tool - Google Patents

Fastener driving tool Download PDF

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Publication number
US3638532A
US3638532A US837696A US3638532DA US3638532A US 3638532 A US3638532 A US 3638532A US 837696 A US837696 A US 837696A US 3638532D A US3638532D A US 3638532DA US 3638532 A US3638532 A US 3638532A
Authority
US
United States
Prior art keywords
valve
piston
cylinder
fluid
tool
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 - Lifetime
Application number
US837696A
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English (en)
Inventor
Raymond F Novak
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.)
Duo Fast Corp
Original Assignee
Duo Fast Corp
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 Duo Fast Corp filed Critical Duo Fast Corp
Application granted granted Critical
Publication of US3638532A publication Critical patent/US3638532A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B25C1/041—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure with fixed main cylinder

Definitions

  • Fastener driving tools also are known which are provided with means for repetitively cycling the driving piston and driving blade through its cycle of power and return strokes so long as a trigger valve is maintained depressed, to provide for autofiring or multiple-firing of the tool. Means may be provided in such a multiple-fire tool to provide for single-firing thereof if desired.
  • Another object of the present invention is to provide a new and improved fastener driving tool wherein the tool is rendered inoperative if the piston bumper has deteriorated beyond useful limits.
  • the driving piston is returned through its return stroke by a pressure buildup of fluid within a return air chamber.
  • the pressure buildup in the chamber results when passages in the piston line up with passages through the cylinder wall leading into the return air chamber.
  • air from the return air chamber will discharge through the same passageway into the cylinder above the piston and exhaust to the atmosphere through an exhaust valve in the cylinderpreventing return cycle of piston to take place.
  • FIG. 12 is a perspective view of the control valve housing of the improved fastener driving tool.
  • the open upper end of the cylinder 18 is in engagement with a main or cylinder valve assembly 20 of a known type, under the control of a control valve assembly 22 according to the present invention.
  • a fastener driving assembly 24 slidably mounted in the cylinder 18 includes a main or drive piston 26 and has connected thereto a depending drive blade member 28.
  • the fastener driving assembly 24 is normally biased to a position with the piston 26 adjacent the cylinder valve assembly 20.
  • An exhaust valve assembly indicated generally as 32 is provided for controlling the selective connection of the upper end of the cylinder 18 to the atmosphere.
  • the pressurized fluid acting through the passageway 44 is effective to unseat the ring member 40 from the edge 18a of the cylinder 18 to dump pressurized fluid into the top of the main cylinder 18 and to drive the drive piston 26 through the drive stroke.
  • a fourth cycling port 124 opens into the valve cylinder 108 intermediate the large O-ring 112 and the spaced small O-ring 114 throughout their travel.
  • a fifth cycling port 126 opens into the end of the large diameter portion 108a of the valve cylinder 108 and is connected by a signal passageway 128 (FIG. 8) to a source of signal fluid, here shown as connected to the return air chamber 60.
  • the trigger valve 78 includes a valve cylinder 140, open to the atmosphere at its upper end, and slideably receiving a trigger spool valve 142, the upper end of which is engaged by a projecting finger 86a of the trigger 86 to be actuated thereby.
  • the trigger spool valve 142 contains three spaced O-rings 144, 146 and 148.
  • the trigger spool valve 142 is movable from a normal position, with the tool at rest, as illustrated in FIGS. 5 and 6, to an intermediate or single-fire position as illustrated in FIGS. 9 and 10, to a fully depressed or autofire position as illustrated in FIG. 11.
  • the valve cylinder 140 is provided with an annular exhaust passageway 150 formed around the upper protruding end of the valve spool 142.
  • the tool 10 will not operate unless both the trigger valve 78 and safety valve are actuated.
  • the safety valve 80 alone is actuated, then the flow of pressurized fluid between the safety ports 190 and 194 will be blocked by the O-ring 178, but the upper surface of the ring member 40 will not be exhausted to atmosphere and thus the tool 10 will not fire. More specifically, the upper surface of the ring member 40 remains pressurized by the fluid supplied to the port 190 over the fluid conveying system including the passages 196, 164, the port 154, the clearance between the O-rings 144 and 146, the port 152, the passage 188, the port 186, and the clearance between the O-rings 176 and 178.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US837696A 1969-06-30 1969-06-30 Fastener driving tool Expired - Lifetime US3638532A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83769669A 1969-06-30 1969-06-30

Publications (1)

Publication Number Publication Date
US3638532A true US3638532A (en) 1972-02-01

Family

ID=25275159

Family Applications (1)

Application Number Title Priority Date Filing Date
US837696A Expired - Lifetime US3638532A (en) 1969-06-30 1969-06-30 Fastener driving tool

Country Status (4)

Country Link
US (1) US3638532A (enrdf_load_stackoverflow)
JP (1) JPS4812914B1 (enrdf_load_stackoverflow)
DE (1) DE2031694B2 (enrdf_load_stackoverflow)
GB (1) GB1302728A (enrdf_load_stackoverflow)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850079A (en) * 1970-07-30 1974-11-26 Behrens J Compressed air-operated drive-in apparatus
US3858781A (en) * 1973-05-14 1975-01-07 Fastener Corp Safety mechanism for fastener driving tool
US3888404A (en) * 1973-09-13 1975-06-10 Duo Fast Corp Safety for fastener driving tool
US3905535A (en) * 1973-09-13 1975-09-16 Duo Fast Corp Fastener driving tool
US3929056A (en) * 1972-05-17 1975-12-30 Haubold Ind Nagelgeraete D Stapler release safety mechanism
US4509330A (en) * 1981-08-04 1985-04-09 Kozponti Valto Pneumatically controlled pressure transducer for operating hydraulic work tools
US4535925A (en) * 1983-08-10 1985-08-20 Micro Plastics, Inc. Semi-automatic pneumatic expansion rivet gun
US4550643A (en) * 1984-05-02 1985-11-05 Duo-Fast Corporation Fastener driving tool
US4610381A (en) * 1984-08-30 1986-09-09 Senco Products, Inc. Drywall tool
US4775089A (en) * 1987-06-12 1988-10-04 Macdonald Donald K Impact nailing and dimpling apparatus
US5025968A (en) * 1989-06-19 1991-06-25 Duo-Fast Corporation Furniture tool
GB2239624A (en) * 1989-12-19 1991-07-10 Duo Fast Corp Fastener driving tool
US5080273A (en) * 1989-12-19 1992-01-14 Duo-Fast Corporation Trigger valve and safety mechanism for fastener driving tool
WO2005056242A1 (en) * 2003-12-10 2005-06-23 Fasco S.P.A. Pneumatic fixing machine
US20070075113A1 (en) * 2005-09-19 2007-04-05 Stanley Fastening Systems, L.P. Fastener driving device
US20070215669A1 (en) * 2006-03-02 2007-09-20 Samson Power Tool Co., Ltd. Device for providing sufficient time to allow piston of pneumatic nailers to move backward
US20070251972A1 (en) * 2006-04-17 2007-11-01 Samson Power Tool Co., Ltd. Restriction mechanism for managing trigger of pneumatic nailers
US7448524B1 (en) * 2007-05-22 2008-11-11 De Poan Pneumatic Corp. Moveable cylinder driving air passage of nail gun
US20100012699A1 (en) * 2008-07-15 2010-01-21 Chia-Sheng Liang Control mechanism for Pneumatic Nail Guns
US20110005786A1 (en) * 2008-03-31 2011-01-13 Oestensson Olof Percussion tool
WO2012154797A1 (en) 2011-05-10 2012-11-15 Illinois Tool Works Inc. Reinforced plastic sleeve for pneumatic nailer
US8579175B2 (en) 2011-03-01 2013-11-12 Illinois Tool Works Inc. Valve cap for pneumatic nailer
WO2014052095A2 (en) 2012-09-30 2014-04-03 Illinois Tool Works Inc. Compact pneumatic nailer with supplemental air tank
US20150273569A1 (en) * 2014-03-25 2015-10-01 Yu-Tang Lin Barrel assembly for a rivet gun
WO2015160443A1 (en) 2014-04-15 2015-10-22 Illinois Tool Works Inc. Embedded regulator for pneumatic nailer supplemental air tank
US9618116B2 (en) 2013-08-27 2017-04-11 Illinois Tool Works Inc. Ported piston for automatic nailer
US9636811B2 (en) 2013-03-11 2017-05-02 Illinois Tool Works Inc. Actuation lockout for a fastener-driving tool
US9664283B2 (en) * 2015-03-24 2017-05-30 David Keiser Captivated seal assembly
US9844864B2 (en) 2012-02-10 2017-12-19 Illinois Tool Works Inc. Sleeve for a pneumatic fastener-driving tool

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278104A (en) * 1965-09-14 1966-10-11 Senco Products Fastener applying device
US3278103A (en) * 1965-04-06 1966-10-11 Senco Products Fastener applying device
US3313213A (en) * 1965-05-20 1967-04-11 Fastener Corp Fastener driving tool
US3329068A (en) * 1966-04-15 1967-07-04 Signode Corp Pneumatic piston return system for impact tools
US3396636A (en) * 1967-01-28 1968-08-13 Behrens Friedrich Joh Compressed air-operated drive-in apparatus to drive-in fasteners, for instance, nails, staples or the like
US3496835A (en) * 1966-04-02 1970-02-24 Senco Products Control system for a pneumatically operated air inlet valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278103A (en) * 1965-04-06 1966-10-11 Senco Products Fastener applying device
US3313213A (en) * 1965-05-20 1967-04-11 Fastener Corp Fastener driving tool
US3278104A (en) * 1965-09-14 1966-10-11 Senco Products Fastener applying device
US3496835A (en) * 1966-04-02 1970-02-24 Senco Products Control system for a pneumatically operated air inlet valve
US3329068A (en) * 1966-04-15 1967-07-04 Signode Corp Pneumatic piston return system for impact tools
US3396636A (en) * 1967-01-28 1968-08-13 Behrens Friedrich Joh Compressed air-operated drive-in apparatus to drive-in fasteners, for instance, nails, staples or the like

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850079A (en) * 1970-07-30 1974-11-26 Behrens J Compressed air-operated drive-in apparatus
US3929056A (en) * 1972-05-17 1975-12-30 Haubold Ind Nagelgeraete D Stapler release safety mechanism
US3858781A (en) * 1973-05-14 1975-01-07 Fastener Corp Safety mechanism for fastener driving tool
US3888404A (en) * 1973-09-13 1975-06-10 Duo Fast Corp Safety for fastener driving tool
US3905535A (en) * 1973-09-13 1975-09-16 Duo Fast Corp Fastener driving tool
US4509330A (en) * 1981-08-04 1985-04-09 Kozponti Valto Pneumatically controlled pressure transducer for operating hydraulic work tools
US4535925A (en) * 1983-08-10 1985-08-20 Micro Plastics, Inc. Semi-automatic pneumatic expansion rivet gun
JPS60238279A (ja) * 1984-05-02 1985-11-27 デユオ‐フアスト　コーポレーシヨン フアスナ打込み工具
JPH0653351B2 (ja) 1984-05-02 1994-07-20 デユオ‐フアスト コーポレーシヨン フアスナ打込み工具
US4550643A (en) * 1984-05-02 1985-11-05 Duo-Fast Corporation Fastener driving tool
US4610381A (en) * 1984-08-30 1986-09-09 Senco Products, Inc. Drywall tool
US4775089A (en) * 1987-06-12 1988-10-04 Macdonald Donald K Impact nailing and dimpling apparatus
US5025968A (en) * 1989-06-19 1991-06-25 Duo-Fast Corporation Furniture tool
GB2239624A (en) * 1989-12-19 1991-07-10 Duo Fast Corp Fastener driving tool
US5080273A (en) * 1989-12-19 1992-01-14 Duo-Fast Corporation Trigger valve and safety mechanism for fastener driving tool
US7497363B2 (en) 2003-12-10 2009-03-03 Fasco S.P.A. Pneumatic fixing machine
WO2005056242A1 (en) * 2003-12-10 2005-06-23 Fasco S.P.A. Pneumatic fixing machine
US20070119899A1 (en) * 2003-12-10 2007-05-31 Fasco S.P.A. Pneutmatic fixing machine
US8602284B2 (en) 2005-09-19 2013-12-10 Stanley Fastening Systems, L.P. Fastener driving device
US20070075113A1 (en) * 2005-09-19 2007-04-05 Stanley Fastening Systems, L.P. Fastener driving device
US7677426B2 (en) 2005-09-19 2010-03-16 Stanley Fastening Systems, L.P. Fastener driving device
US20100140314A1 (en) * 2005-09-19 2010-06-10 Stanley Fastening Systems, L.P. Fastener driving device
US20070215669A1 (en) * 2006-03-02 2007-09-20 Samson Power Tool Co., Ltd. Device for providing sufficient time to allow piston of pneumatic nailers to move backward
US20070251972A1 (en) * 2006-04-17 2007-11-01 Samson Power Tool Co., Ltd. Restriction mechanism for managing trigger of pneumatic nailers
US7448524B1 (en) * 2007-05-22 2008-11-11 De Poan Pneumatic Corp. Moveable cylinder driving air passage of nail gun
US20080290130A1 (en) * 2007-05-22 2008-11-27 Chia-Sheng Liang Movable cylinder driving air passage of nail gun
US20110005786A1 (en) * 2008-03-31 2011-01-13 Oestensson Olof Percussion tool
US8955616B2 (en) * 2008-03-31 2015-02-17 Construction Tools Pc Ab Percussion tool
US20100012699A1 (en) * 2008-07-15 2010-01-21 Chia-Sheng Liang Control mechanism for Pneumatic Nail Guns
US7762442B2 (en) * 2008-07-15 2010-07-27 De Poan Pneumatic Corp. Control mechanism for pneumatic nail guns
US8579175B2 (en) 2011-03-01 2013-11-12 Illinois Tool Works Inc. Valve cap for pneumatic nailer
US8695863B2 (en) 2011-05-10 2014-04-15 Illinois Tool Works, Inc. Reinforced plastic sleeve for pneumatic nailer
WO2012154797A1 (en) 2011-05-10 2012-11-15 Illinois Tool Works Inc. Reinforced plastic sleeve for pneumatic nailer
US9844864B2 (en) 2012-02-10 2017-12-19 Illinois Tool Works Inc. Sleeve for a pneumatic fastener-driving tool
WO2014052095A2 (en) 2012-09-30 2014-04-03 Illinois Tool Works Inc. Compact pneumatic nailer with supplemental air tank
US9636811B2 (en) 2013-03-11 2017-05-02 Illinois Tool Works Inc. Actuation lockout for a fastener-driving tool
US9618116B2 (en) 2013-08-27 2017-04-11 Illinois Tool Works Inc. Ported piston for automatic nailer
US10513019B2 (en) * 2013-08-27 2019-12-24 Illinois Tool Works Inc. Ported piston for automatic nailer
US20150273569A1 (en) * 2014-03-25 2015-10-01 Yu-Tang Lin Barrel assembly for a rivet gun
WO2015160443A1 (en) 2014-04-15 2015-10-22 Illinois Tool Works Inc. Embedded regulator for pneumatic nailer supplemental air tank
US9902054B2 (en) 2014-04-15 2018-02-27 Illinois Tool Works Inc. Embedded regulator for pneumatic nailer supplemental air tank
US9664283B2 (en) * 2015-03-24 2017-05-30 David Keiser Captivated seal assembly

Also Published As

Publication number Publication date
DE2031694C3 (enrdf_load_stackoverflow) 1974-11-07
JPS4812914B1 (enrdf_load_stackoverflow) 1973-04-24
DE2031694A1 (de) 1971-01-21
DE2031694B2 (de) 1974-04-04
GB1302728A (enrdf_load_stackoverflow) 1973-01-10

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