US3670942A - Automatic feeding of fasteners - Google Patents

Automatic feeding of fasteners Download PDF

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Publication number
US3670942A
US3670942A US80915A US3670942DA US3670942A US 3670942 A US3670942 A US 3670942A US 80915 A US80915 A US 80915A US 3670942D A US3670942D A US 3670942DA US 3670942 A US3670942 A US 3670942A
Authority
US
United States
Prior art keywords
clip
tool
fastener
barrel
lever
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
US80915A
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English (en)
Inventor
Raymond Visher Pomeroy
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.)
Omark Industries Inc
Phillips Drill Co Inc
Original Assignee
Omark Industries Inc
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 Omark Industries Inc filed Critical Omark Industries Inc
Application granted granted Critical
Publication of US3670942A publication Critical patent/US3670942A/en
Assigned to ITT CORPORATION reassignment ITT CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
Assigned to FL INDUSTRIES, INC., A CORP. OF N.J. reassignment FL INDUSTRIES, INC., A CORP. OF N.J. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ITT CORPORATION, 320 PARK AVENUE, NEW YORK, NY 10022, A CORP. OF DE.
Assigned to PHILLIPS DRILL COMPANY, INC., A CORP. OF IN reassignment PHILLIPS DRILL COMPANY, INC., A CORP. OF IN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FL INDUSTRIES, INC.
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
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
    • B25C1/182—Feeding devices
    • B25C1/184—Feeding devices for nails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B15/00—Nails; Staples
    • F16B15/08—Nails; Staples formed in integral series but easily separable

Definitions

  • the indexing means operates as the tool is [56] Rdmnm Cited cocked in readiness for firing.
  • the clip is advanced forward to UNITED STATES PATENTS move afastener into position.
  • a driving ram in the tool drives the fastener through the 011p and into the work sur- 6l8,6 5 1 899 Lee face.
  • Release of the tool followed by further cocking in readilr539r473 5/ 1925 ness for a second firing advances the clip through the tool to 1,554,128 9/1925 Robertson align the next successive fastener with the driving ram.
  • 3,363,817 1/1968 Brack 3,575,332 4/1971 3Clalms,7Drawing Figures Brunelle ..227/ l 0 PATENTEBJUHO 1972
  • Powder actuated tools have numerous safety requirements. These requirements include for example loading of the power load for driving the piston such that it is entirely enclosed inside the tool, andalso requires a two step action for firing the tool.
  • a commonly used firing pin mechanism ignites the power load but only after the firing pin is cocked by forcing the nose of the tool against the work surface.
  • a powder actuated tool must accomplish the automatic loading while maintaining the required two step firing, preferably in the manner described above.
  • the present invention is believed to provide automatic feeding which also meets the safety requirements and is additionally inexpensive to produce and easily operated. Furthermore, the automatic loading is easily adapted to present driving tools.
  • the automatic loader is a nose piece which accepts a feeding clip filled with fasteners. The clip is advanced through the nose piece by the action of cocking the firing pin. Means are provided to align the fasteners with the driving ram and also to lock the cocking action when the last fastener of the cartridge is driven through the barrel.
  • FIG. I is a sectioned view of a powder actuated tool employing a fastener feeding device in accordance withthe present invention
  • FIG. 2 is a perspective view with portions sectioned and removed to illustrate the operation of the fastener feeding device shown in FIG. 1;
  • FIG. 3 is a section view taken on lines 3-3 of FIG. 2;
  • FIG. 4 illustrates the fastener containing clip used in the fastener feeding device
  • FIGS. 5 and 6 illustrate mechanisms of the fastener feeding devices in the two extreme positions of before and after advancing the clip to the next successive fastener
  • FIG. 7 illustrates the operation of ejecting an emptied clip.
  • a powderactuated tool 10 includes a barrel I2 slidably mounted in a tool housing 13 and a driving ram 14 slidable within the barrel.
  • a breach plug 16 receives a power load 18.
  • a firing pin 20 carried by a carrier 22 is prevented from contacting the power load 18 because of sear 24.
  • the firing pin is moved with it and compresses spring 26.
  • the trigger 28 is engaged to release the sear 24 and spring 26 propels the firing pin toward the power load.
  • the fastener feeding mechanism 30 forms an extension 31 on the front of the barrel l2 and is locked to the barrel by means of lock screw 32.
  • the fastener holding clip 34 that is fed through the feeding mechanism 30 is best shown in FIGS. 3 and 4.
  • the fastener clip has a row of circular openings 36 adapted to contain fasteners 38.
  • One side of the clip is formed with wave-like valleys 40 while the other side is formed with ridges 42.
  • a slot 44 through the barrel extension 3! permits passage of the clip whereby openings 36 can be aligned with the barrel 12.
  • FIGS. 2, 3, 5 and 6 The mechanism for advancing the clip automatically through the slot 44 is illustrated in FIGS. 2, 3, 5 and 6.
  • a plunger 46 is slidably mounted in the casing 48.
  • a triangular shaped lever 50 is pivotally mounted within the casing.
  • a spring 52 urges the lever 50 to the position shown in FIG. 2 and 5 with plunger 46 urged to its fully retracted position.
  • a gripping stem 54 is carried by the lever 50.
  • the gripping stem is mounted to the lever 50 by a pin 56 fixed to the lever which rides in slot 58 in the stem to permit limited lateral sliding movement through a slot 51 in a mounting plate 53.
  • a spring 60 urges the stem into its extended position and into engagement with ridges 42 in the clip 34.
  • a centering post 66 is slidably mounted in the casing.
  • the centering post extends through the casing and a knob 68 is provided on the end to allow manual retraction.
  • a centering head 70 on the opposite end of the post is urged toward the clip 34 by spring 72.
  • the centering post is in registry with the valleys 40 on the clip so that when bottomed, the openings 36 are aligned with the barrel 12.
  • the valleys being tapered and the end of the centering head being matched thereto, an urging of the clip lengthwise will bias the post against spring 72 and as the peak of the valley is passed, the post is urged into the center of the next successive valley to align the next opening 36 with the barrel. The process is repeated until the last valley 40a is reached.
  • This valley is substantially deeper than the preceeding valley 40 and when the post is seated therein, the clip 34 is locked against further movement.
  • the knob 68 can be manually moved to retract the post and unlock the clip 34, or as seen in FIG. 7 another clip can be introduced into the feeding mechanism.
  • the wedge 74 formed on the leading edge of the clip is pushed into the relief 76 at the rear end of the clip and wedges against the centering post to move it out of the valley 40a.
  • the clip is then merely advanced manually through the feeding mechanism until the first valley 40 of the new clip is engaged by the centering post.
  • the specific feeding mechanism described is adapted to operate on a powder actuated tool wherein a cocking action takes place by forcing the barrel end into the tool housing.
  • a cocking action takes place by forcing the barrel end into the tool housing.
  • the plunger forces pivoting of lever 50 with stem 54 moved upwardly in slot 51.
  • the stem engages a ridge 42 of a clip 34 and forces it upwardly against the holding force of centering post 66.
  • This upward movement moves the centeringpost to the next successive valley which aligns the next opening 36 holding a fastener 38 with the driving ram 14 of the tool.
  • the trigger 28 is pulled to release the firing pin to fire the power load 18 which drives the driving ram against the fastener.
  • the operator then releases the force against the handle of the tool, allowing the barrel end to move out of the housing and retraction of the plunger 46 from the casing 48.
  • the clip is held from returning movement by the centering post. Return movement of the stem without moving the clip is permitted by the camming action of the slanted edge 42!: forcing retraction of the stem against the spring 60.
  • An automatic self-contained fastener feeding mechanism adapted to be releasably locked to an explosively actuated fastener driving too] comprising: a barrel portion having a transverse opening therethrough, a casing supported by the barrel portion, a reciprocal advancing means carried by the casing for gripping and advancing a fastening holding clip a predetermined distance through the barrel opening, registering means carried by the casing to resist return movement of the clip and to align a fastener carried by the clip with the barrel, and releasable locking means to lock the feeding mechanism to the exit end of the barrel of the tool.
  • a feeding mechanism as defined in claim 2 wherein said reciprocal advancing means includes a lever pivotally mounted in the casing, biasing means biasing the lever into one extreme pivotal position, and a stem carried by the lever adapted to engage a fastener holding clip provided in the opening of the barrel portion to advance the clip as the lever is pivoted, and said actuating means including a plunger that engages the lever to pivot the lever against the biasing means to a second extreme pivotal movement for advancing the fastener holding clip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Slide Fasteners (AREA)
  • Automatic Assembly (AREA)
US80915A 1970-10-15 1970-10-15 Automatic feeding of fasteners Expired - Lifetime US3670942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8091570A 1970-10-15 1970-10-15

Publications (1)

Publication Number Publication Date
US3670942A true US3670942A (en) 1972-06-20

Family

ID=22160464

Family Applications (1)

Application Number Title Priority Date Filing Date
US80915A Expired - Lifetime US3670942A (en) 1970-10-15 1970-10-15 Automatic feeding of fasteners

Country Status (8)

Country Link
US (1) US3670942A (OSRAM)
JP (1) JPS5543862B1 (OSRAM)
CA (1) CA931701A (OSRAM)
DE (1) DE2151051A1 (OSRAM)
ES (1) ES395974A1 (OSRAM)
FR (1) FR2111359A5 (OSRAM)
GB (1) GB1345952A (OSRAM)
IT (1) IT939557B (OSRAM)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743159A (en) * 1971-01-14 1973-07-03 Impex Essen Vertrieb Cartridge-actuated fastener-driving tools
US3774832A (en) * 1970-08-28 1973-11-27 Hilti Ag Device for driving fastening elements supplied in holder strips
US3863824A (en) * 1973-10-23 1975-02-04 Olin Corp Automatic fastener feed magazine and feed belt
US3891133A (en) * 1972-08-02 1975-06-24 Hilti Ag Fastening element feed mechanism for an explosion charge-driven setting gun
US3991925A (en) * 1974-07-12 1976-11-16 Hilti Aktiengesellschaft Movably mounted magazine for feeding fastening elements into a setting gun barrel
US4741467A (en) * 1986-02-28 1988-05-03 Hilti Aktiengesellschaft Explosive powder charge operated fastening member driving tool
US4821938A (en) * 1987-11-25 1989-04-18 Haytayan Harry M Powder-actuated fastener driving tool
US4858811A (en) * 1985-11-21 1989-08-22 Eldorado Cartridge Corporation Power actuated tool with magazine feed
US4932580A (en) * 1988-03-02 1990-06-12 Hilti Aktiengesellschaft Explosive powder charge operated setting device
US5143572A (en) * 1990-02-23 1992-09-01 Hatch J Mel Dowel shooting apparatus
US5299373A (en) * 1989-11-24 1994-04-05 Sandor Breiner Hand-gun with moving cartridge chamber magazine
US5811717A (en) * 1996-08-21 1998-09-22 Illinois Tool Works Inc. Powder-actuated tool cartridge clip with position indicator mark
US6267284B1 (en) * 1998-09-18 2001-07-31 Ramset Fasteners (Aust.) Pty. Limited Power actuated tools with magazine feed
AU754213B2 (en) * 1998-09-18 2002-11-07 Cetram Pty Limited Power actuated tools with magazine feed
US20050194418A1 (en) * 2004-03-03 2005-09-08 Michael Weibel Magazine with fastening elements for a setting tool and a setting tool with the magazine with fastening elements
US20060048366A1 (en) * 2001-06-11 2006-03-09 Davicorp Inc. Screw gun
US20070012744A1 (en) * 1997-04-24 2007-01-18 Simpson Strong-Tie Company, Inc. Power actuated fastener system
US7395955B2 (en) 2006-01-06 2008-07-08 Staples The Office Superstore, Llc Stapler
US7540400B2 (en) 2006-01-06 2009-06-02 Staples The Office Superstore, Llc Stapler having a moveable strike plate with lockout mechanism
US20110186321A1 (en) * 2010-02-02 2011-08-04 Chambers Scott E Pneumatically Powered Impact Device and Method
US9821242B2 (en) 2011-05-23 2017-11-21 Lego A/S Generation of building instructions for construction element models
US9827507B2 (en) 2011-05-23 2017-11-28 Lego A/S Toy construction system for augmented reality

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608146A1 (de) * 1986-03-12 1987-09-17 Hilti Ag Pulverkraftbetriebenes setzgeraet
DE3806626C2 (de) * 1988-03-02 1997-04-24 Hilti Ag Pulverkraftbetriebenes Setzgerät
DE3917846A1 (de) * 1989-06-01 1990-12-06 Hilti Ag Traegerstreifen fuer pulverkraftbetriebene setzgeraete
FR2766403B1 (fr) * 1997-07-25 1999-09-17 Spit Soc Prospect Inv Techn Bande de bagues de reception de tampon de scellement pour appareil de scellement de tampon
DE102012209420A1 (de) * 2012-06-04 2013-12-05 Hilti Aktiengesellschaft Eintreibvorrichtung
EP3501749A1 (de) * 2017-12-20 2019-06-26 HILTI Aktiengesellschaft Befestigungselementestreifen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US618695A (en) * 1899-01-31 Nailing machine
US1539473A (en) * 1924-08-22 1925-05-26 Ellwood Thomas Benn Nail-driving attachment for air hammers
US1554128A (en) * 1924-04-17 1925-09-15 Joseph A C Robertson Pneumatic hammer
US3331546A (en) * 1965-06-01 1967-07-18 Olin Mathieson Piston return and buffer system
US3363817A (en) * 1964-11-20 1968-01-16 Etem Ets Explosively-actuated repeating-action power tool
US3506178A (en) * 1967-12-14 1970-04-14 Olin Mathieson Spring piston return
US3563439A (en) * 1968-06-18 1971-02-16 Omark Industries Inc Powder actuated tool
US3575332A (en) * 1968-05-29 1971-04-20 Olin Mathieson Barrel retention means for power-actuated tools

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US618695A (en) * 1899-01-31 Nailing machine
US1554128A (en) * 1924-04-17 1925-09-15 Joseph A C Robertson Pneumatic hammer
US1539473A (en) * 1924-08-22 1925-05-26 Ellwood Thomas Benn Nail-driving attachment for air hammers
US3363817A (en) * 1964-11-20 1968-01-16 Etem Ets Explosively-actuated repeating-action power tool
US3331546A (en) * 1965-06-01 1967-07-18 Olin Mathieson Piston return and buffer system
US3506178A (en) * 1967-12-14 1970-04-14 Olin Mathieson Spring piston return
US3575332A (en) * 1968-05-29 1971-04-20 Olin Mathieson Barrel retention means for power-actuated tools
US3563439A (en) * 1968-06-18 1971-02-16 Omark Industries Inc Powder actuated tool

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774832A (en) * 1970-08-28 1973-11-27 Hilti Ag Device for driving fastening elements supplied in holder strips
US3743159A (en) * 1971-01-14 1973-07-03 Impex Essen Vertrieb Cartridge-actuated fastener-driving tools
US3891133A (en) * 1972-08-02 1975-06-24 Hilti Ag Fastening element feed mechanism for an explosion charge-driven setting gun
US3863824A (en) * 1973-10-23 1975-02-04 Olin Corp Automatic fastener feed magazine and feed belt
US3991925A (en) * 1974-07-12 1976-11-16 Hilti Aktiengesellschaft Movably mounted magazine for feeding fastening elements into a setting gun barrel
US4858811A (en) * 1985-11-21 1989-08-22 Eldorado Cartridge Corporation Power actuated tool with magazine feed
US4741467A (en) * 1986-02-28 1988-05-03 Hilti Aktiengesellschaft Explosive powder charge operated fastening member driving tool
US4821938A (en) * 1987-11-25 1989-04-18 Haytayan Harry M Powder-actuated fastener driving tool
US4932580A (en) * 1988-03-02 1990-06-12 Hilti Aktiengesellschaft Explosive powder charge operated setting device
US5299373A (en) * 1989-11-24 1994-04-05 Sandor Breiner Hand-gun with moving cartridge chamber magazine
US5143572A (en) * 1990-02-23 1992-09-01 Hatch J Mel Dowel shooting apparatus
US5811717A (en) * 1996-08-21 1998-09-22 Illinois Tool Works Inc. Powder-actuated tool cartridge clip with position indicator mark
US20070012744A1 (en) * 1997-04-24 2007-01-18 Simpson Strong-Tie Company, Inc. Power actuated fastener system
US6267284B1 (en) * 1998-09-18 2001-07-31 Ramset Fasteners (Aust.) Pty. Limited Power actuated tools with magazine feed
AU754213B2 (en) * 1998-09-18 2002-11-07 Cetram Pty Limited Power actuated tools with magazine feed
US7562800B2 (en) * 2001-06-11 2009-07-21 Davicorp. Inc. Screw gun
US20090308207A1 (en) * 2001-06-11 2009-12-17 Davicorp Inc. Screw gun
US20060048366A1 (en) * 2001-06-11 2006-03-09 Davicorp Inc. Screw gun
CN100484722C (zh) * 2004-03-03 2009-05-06 希尔蒂股份公司 用于安装工具的紧固件料匣和有紧固件料匣的安装工具
US7143919B2 (en) * 2004-03-03 2006-12-05 Hilti Aktiengesellschaft Magazine with fastening elements for a setting tool and a setting tool with the magazine with fastening elements
US20050194418A1 (en) * 2004-03-03 2005-09-08 Michael Weibel Magazine with fastening elements for a setting tool and a setting tool with the magazine with fastening elements
US7540400B2 (en) 2006-01-06 2009-06-02 Staples The Office Superstore, Llc Stapler having a moveable strike plate with lockout mechanism
US7395955B2 (en) 2006-01-06 2008-07-08 Staples The Office Superstore, Llc Stapler
US20110186321A1 (en) * 2010-02-02 2011-08-04 Chambers Scott E Pneumatically Powered Impact Device and Method
US8418781B2 (en) * 2010-02-02 2013-04-16 Rapid Entry Solutions, Llc Pneumatically powered impact device and method
US9821242B2 (en) 2011-05-23 2017-11-21 Lego A/S Generation of building instructions for construction element models
US9827507B2 (en) 2011-05-23 2017-11-28 Lego A/S Toy construction system for augmented reality
US10549209B2 (en) 2011-05-23 2020-02-04 Lego A/S Toy construction system for augmented reality
US11014014B2 (en) 2011-05-23 2021-05-25 Lego A/S Toy construction system for augmented reality
US11911709B2 (en) 2011-05-23 2024-02-27 Lego A/S Toy construction system for augmented reality

Also Published As

Publication number Publication date
DE2151051A1 (de) 1972-05-25
JPS5543862B1 (OSRAM) 1980-11-08
ES395974A1 (es) 1974-09-01
CA931701A (en) 1973-08-14
FR2111359A5 (OSRAM) 1972-06-02
IT939557B (it) 1973-02-10
GB1345952A (en) 1974-02-06

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ITT CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION;REEL/FRAME:004389/0606

Effective date: 19831122

AS Assignment

Owner name: FL INDUSTRIES, INC., 220 SUTH ORANGE AVENUE, LIVIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ITT CORPORATION, 320 PARK AVENUE, NEW YORK, NY 10022, A CORP. OF DE.;REEL/FRAME:004453/0578

Effective date: 19850629

AS Assignment

Owner name: PHILLIPS DRILL COMPANY, INC., A CORP. OF IN,INDIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FL INDUSTRIES, INC.;REEL/FRAME:004842/0480

Effective date: 19880223

Owner name: PHILLIPS DRILL COMPANY, INC., U.S. ROUTE 12, LIBER

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FL INDUSTRIES, INC.;REEL/FRAME:004842/0480

Effective date: 19880223