US3050732A - Fastener driving interlocking pistol or tool - Google Patents

Fastener driving interlocking pistol or tool Download PDF

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Publication number
US3050732A
US3050732A US775951A US77595158A US3050732A US 3050732 A US3050732 A US 3050732A US 775951 A US775951 A US 775951A US 77595158 A US77595158 A US 77595158A US 3050732 A US3050732 A US 3050732A
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United States
Prior art keywords
pistol
piston
fastener
tool
cartridge
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Expired - Lifetime
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US775951A
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English (en)
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Termet Pierre
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Individual
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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
    • B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil
    • B25C1/143—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil trigger operated
    • 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
    • B25C1/105—Cartridge ejecting mechanisms and latch mechanisms
    • 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

Definitions

  • the present invention relates to improvements in fastener driving tools adapted to drive fasteners, studs or the like workpiece materials.
  • the present invention is particularly concerned with improvements applicable to fastener driving pistols or tools, wherein the gases produced by the explosion of an explosive cartridge cause an intermediate piston to be propelled and strike the fastener or stud contained in the pistol to drive the former into the workpiece in the same manner that a nail is driven by a hammer stroke.
  • a power adjustment or control device whereby it is possible to use a standard explosive cartridge having a predetermined explosive power, and the adjustment or control of said device permits the regulation of the force acting on said fastener or stud -according to the material into which it is to be driven.
  • Such power adjustment or control device is essentially characterized by the fact that the pistol tiring chmber containing a loaded cartridge is closed by ⁇ a rod integral with the piston driving the fastener into the material. As soon as the explosion occurs, the rod integral with the piston moves and uncovers a variable cross-section orifice through whichl a portion of the gases resulting from the cartridge explosion may be evacuated to the outside surrounding atmosphere.
  • Said power adjustment or control is obtained on the one hand by varying the cross-sectional area of the orifice through which gases are allowed to escape outside, and on Ithe other hand by varying the iiring chamber volume prior to tiring the cartridge.
  • PIG. 1 is au elevation view in longitudinal section o a fastener driving interlocking pistol or tool according toV the present invention.
  • FIG. 2 is an enlarged fragmentary view corresponding to FIG. 1, with the pistol open lso that the cartridge may be loaded therein.
  • FIG. 3 is an enlarged fragmentary View showing how the adjustment or control of the power may he effected.
  • FIG. 4 ⁇ is a View corresponding to FIG. 3 of a modified form of the device according to this invention.
  • FIG. 5 is a fragmentary sectional view showing a modiried form of the ejection means according to the present invention.
  • FIG. 6 is a perspective view showing an attachment member at the barrel muzzle end.
  • FIG. 7 is a sectional view taken along VII-VII in FIG. 1;
  • FIG. 8 - is a perspective view showing the arrangement of the magnets around the pistol barrel. p p
  • a cartridge holder 1 on which -a breech 2 is screwed by means of an externally threaded part 3.
  • a guiding cylinder 4 adapted to guide a piston 5 is held in an adjustably xed position by means of threads 6 in a sleeve 7, which is in turn, screwed on the cartridge holder 1.
  • a knurled internally threaded ring 1t adapted to ⁇ lock the cylinder 4 relatively to the sleeve 7.
  • Said ring 1d bears an adjusting mark 11 which cooperates with a scale 12 on the cylinder 4, to permit accurate adjustment of the position of the cylinder 4 relatively to the sleeve 7.
  • An internally threaded end part 13 ⁇ of the cylinder 4 supports a tube 14 which acts as a guide for the fastener or stud when ring occurs.
  • Said tube 14 is extended inwardly of the pistol by a cage 15 provided with a cap 16 made from nonrnagnetic material and containing magnets 17.
  • the tube 14 comprises also hollow screws 18 containing magnets 19, the right hand ends of which (viewing FIG. 1) are flush with the bottom of a recess 20 provided at the pistol barrel muzzle end for a purpose discussed later.
  • the barrel muzzle end of the pistol or firing tool is also provided with a flash shield 21 as a protection against possible ricochets and spalling of the workpiece material, said shield being made from a plastic material such as Rilsan.
  • Said socket 22 is provided with orifices 24 and 25 through which, when open, a new cartridge may be loaded and the spent cartridge case removed.
  • An outer casing 26 fixed to sleeve 7 surrounds the socket 22.and covers the orifices 24vand 25, and limits the movement of the front part of the pistol by means of its shoulder 27 which engages a shoulder 28 provided at Y the front end (viewing FIG. 2) of tubular element 22.
  • said trigger is in a condition to release the fin'ngpin 29 and'thus to re Y the pistol cartridge.
  • a stub 39 which is integral with the hand grip 34, moves in a groove 40 cutin the rear part of the breech 2 and constrains the latter against any relative movement of rotation with respect to the hand grip 34.
  • the cartridge holder 1 is provided with a pair of holes 41 in which are slidingly mounted ejector pins 42 urged leftward or backward by ejector pin spn'ngs 43. ⁇
  • Screws 44 are provided respectively not only to limit the travel ofthe extractor pin 42 but also to lock the same against .any rotation.Y Y
  • the cartridge extraction isy merely effected by means of a small plate 45 screwed on the breech 2 inside the same, and below lwhich is engaged the outside periphery of a cartridge 46, as seen in FIG. 5.
  • FIGS. 3 and 4 show at an enlargedl scale how is effected the power adjustmentror control according to the present invention.
  • the piston which slides within the cylinder 4 is extended at the rear thereof (viewing FIG. 3) by a cylindrical rod 47, the free tapered end 48 of which terminates in a concave cup-shaped recess 49,.
  • the distance between the piston 5 and the end 49 of the rod 47 is such that,'regardless'of the position of the cylinder 4 with respect to the breech holder, said end 49 of rod 47 bears on a shoulder 50 cut in the cartridge holder 1.
  • tapered end 48 of the rod 47 shows substantially the same tapering as does the breech-holder corresponding part, but that said two tapered parts do not engage one with the other so as so avoid any jamming.
  • a rubber tubular element 56 which is used as abrakie for the piston, is driven to engage a washer 57 made from a resilient plastic material such as, e.g. polyvinyl chloride.
  • saidrwasher 57 is disposed between the rubber tubular element 56 acting as a buffer or shock-absorber and the pistol tube 14, thus avoiding a premature wearing of the buffer 56.
  • the effective space left available for gas iow between the guiding cylinder 4 and the cartridge holder 1 determines on the one hand the amount of gases acting effectively on the piston 5 and used to drive inthe stud, and on the other hand the amount of gases ledV directly to the outside atmosphere.
  • the tapered end Y48 of rod 47 is provided with a cylindrical extension 48a:V
  • the tiring chamber comprises a closed space which opens to the outside after a small vmovement of the piston 5.
  • the initial ring chamber volume varies as a function of said adjustment, owing to the fact that, prior to firing, the piston 5 bears always on the bottom of cylinder 4. Consequently, when said adjustment is made to correspond to a low power, the firing chamber comprises at the moment of firing a greater volume compared to the volume that said chamber comprises when the adjustment is madeto correspond to the maximum power.
  • power adjustment is effected by two effects, namely (l) varying the initial firing chamber Volume, and (2) varying the cross-section area available for gases flowing directly to the surrounding atmosphere.
  • FIG.-8 shows said magnets 17 held by means of the recitedrcap 16 within bores 17a drilled in said cage 15.
  • v Y With suchan organization, the magnetsengage directlyv the fastener or stud andvinsure effectively the holding y thereof.
  • said magnets have a sufficient clearance to freely pass the rod V58 integral with piston 5 which propels forwardly the studl 59 upon firing ofthe pistol.l
  • a pair of magnets 19 at the bottom of the housing or recess located at the barrel muzzle end said magnets being contained within hollow screws 18 maintaining the attachment member 60' which is to be xed to the workpiece by means of the fastener or stud.
  • FIG. 6 there is shown in perspective the barrel muzzle end Without the flash shield 21. It can be seen in this iigure how the attachment member 60 is held by the magnets in the corresponding recess 20 and may be thus in a xed position when the fastener or stud is propelled upon ring the pistol cartridge.
  • An explosion-actuated fastener-driving tool having a barrel for receiving a fastener to be driven, a breech block dening a ring chamber, cylindrical means deining a piston chamber between said barrel and ring chamber, and piston means slidable in said piston chamber between a rear position in which said piston means closes one end of said firing chamber and a forward position axially removed therefrom, said cylindrical means comprising a transverse wall portion mounted for axial adjustment relative to said breech block, said adjustable wall portion constituting a rear wall for said piston chamber through which one end of said piston means projects and defining with the forward part of the tiring chamber Wall an adjustable vent by-passing said piston chamber through which the forward end of said ring chamber is connected to the exterior of the tool, said vent being blocked by said piston means when it closes said ring chamber but progressively opened by said piston means as it moves forward.
  • a tool as claimed in claim 1 comprising also means for locking said adjustable wall portion in any of a plurality of positions relative to said breech block.
  • a tool as claimed in claim 1 in which said firing chamber opens at its forward end into an axial bore which tapers inwardly toward said ring chamber, and the rear surface of said adjustable wall portion is tapered to project into said bore, the rearward end of said piston means being less sharply tapered than at least part of said bore and extending completely therethrough to close the forward end of said tiring chamber when said piston is in its rear position.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US775951A 1957-11-29 1958-11-24 Fastener driving interlocking pistol or tool Expired - Lifetime US3050732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR355111X 1957-11-29

Publications (1)

Publication Number Publication Date
US3050732A true US3050732A (en) 1962-08-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
US775951A Expired - Lifetime US3050732A (en) 1957-11-29 1958-11-24 Fastener driving interlocking pistol or tool

Country Status (5)

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US (1) US3050732A (fr)
BE (1) BE573218A (fr)
CH (1) CH355111A (fr)
DE (1) DE1262170B (fr)
GB (1) GB856232A (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203609A (en) * 1961-04-13 1965-08-31 Bauer Carl Apparatus for driving bolts into masonry, structural parts and the like
US3248032A (en) * 1964-01-06 1966-04-26 Hi Shear Corp Cartridge powered fastener driver
US3249279A (en) * 1963-09-04 1966-05-03 Behrend Herbert Bolt and charge operated tool for driving in a bolt
US3275209A (en) * 1962-10-23 1966-09-27 Hansen Kern Borje Emanuel Nail-driving device
US3632032A (en) * 1968-08-05 1972-01-04 Pierre Termet Apparatus using the energy produced by the explosion of a machine gun cartridge (shell)
US3665583A (en) * 1968-05-09 1972-05-30 Ladd Tool Co Inc Suspension clip structure and apparatus and method for securing same to a work surface
US3860161A (en) * 1972-02-07 1975-01-14 Gunnebo Bruks Ab Cartridge tool with pocket arranged under the barrel
US3899113A (en) * 1972-08-07 1975-08-12 Olin Ski Ag Explosively actuated fastener driving power tools
US3918619A (en) * 1972-12-26 1975-11-11 Pierre Termet Safety device for seal fixing apparatus
US4040164A (en) * 1973-07-13 1977-08-09 Briles Franklin S Fastener driving gun
FR2607744A1 (fr) * 1986-12-03 1988-06-10 Prospection & Inventions Appareil de scellement a ejecteur perfectionne
EP0330950A3 (en) * 1988-03-03 1989-11-15 Hilti Aktiengesellschaft Powder-actuated fastening tool
EP0579575A1 (fr) * 1992-07-13 1994-01-19 HILTI Aktiengesellschaft Outil de scellement actionné par poudre
EP0826464A1 (fr) * 1996-09-02 1998-03-04 HILTI Aktiengesellschaft Outil de scellement actionné par poudre avec des moyens de rappel du piston
US6161745A (en) * 1998-07-13 2000-12-19 Hilti Aktiengesellschaft Powder force-operated setting tool
US20160023340A1 (en) * 2014-07-24 2016-01-28 Taizhou Dajiang Ind. Co., Ltd. Spring reset device for piston mechanism
US20160023338A1 (en) * 2014-07-24 2016-01-28 Taizhou Dajiang Ind. Co. Ltd. Cylinder cover for steam powered nailing guns
CN109648521A (zh) * 2019-01-26 2019-04-19 浙江荣鹏气动工具股份有限公司 一种气动散钉枪

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2045673B (en) * 1979-04-10 1983-03-23 Prospection & Inventions Powder actuated piston tool with power adjustment
US4358041A (en) * 1980-06-12 1982-11-09 Olin Corporation Powder-actuated tool with power adjustment and angle-fire control
DE3418238A1 (de) * 1984-05-16 1985-11-21 Hilti Ag, Schaan Pulverkraftbetriebenes setzgeraet

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1569153A (en) * 1925-02-20 1926-01-12 Temple Robert Captive bolt or like projectile device
US1864374A (en) * 1931-01-09 1932-06-21 Rheinische Metallw & Maschf Firearm
US2096002A (en) * 1935-10-14 1937-10-19 American Steel & Wire Co Rail bonding apparatus
US2132148A (en) * 1937-01-30 1938-10-04 Grace P Davis Impact press
US2258861A (en) * 1939-09-23 1941-10-14 Armstrong Cork Co Clip applying device
US2632890A (en) * 1949-08-25 1953-03-31 Tietig Chester Nail-driving firearm
US2660726A (en) * 1951-06-07 1953-12-01 Weingart Ben Means for positioning and holding fasteners in explosively actuated fastener drivingtools
US2671484A (en) * 1948-11-18 1954-03-09 Wade Stevenson Magnetic tool
US2724116A (en) * 1951-07-12 1955-11-22 Termet Pierre Explosively actuated fastener driving tool
GB744822A (en) * 1952-10-31 1956-02-15 Rolf Bertelsmann An improved device for driving bolts or short pointed members into constructional parts
US2778020A (en) * 1949-12-29 1957-01-22 Oregon Saw Chain Corp Stud driving tool
US2790173A (en) * 1946-12-19 1957-04-30 Ramset Fasteners Inc Receptor for positioning discs and the like at the muzzle of the barrel of explosively actuated tools
US2801416A (en) * 1952-08-07 1957-08-06 Remington Arms Co Inc Means for controlling the velocity of projectiles
CH325204A (de) * 1953-01-24 1957-10-31 Schulz Walter Bolzensetzgerät
FR1174052A (fr) * 1956-06-08 1959-03-05 Ramset Fasteners Outil pour enfoncer des éléments de fixation
US2930042A (en) * 1957-04-09 1960-03-29 Mine Safety Appliances Co Explosively actuated nail driving tool

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2722003A (en) * 1949-12-29 1955-11-01 Powder Power Tool Corp Method of stud driving power control
DE914840C (de) * 1950-06-02 1954-07-08 Langensiepen Kg M Vorrichtung zum Eintreiben von Bolzen u. dgl. in Bauteile
BE504909A (fr) * 1950-08-04
AT187869B (de) * 1953-01-24 1956-12-10 Walter Ing Schulz Bolzensetzgerät
FR1096723A (fr) * 1953-12-19 1955-06-23 Pistolet de scellement à éjection automatique de la cartouche par extracteur
US2790174A (en) * 1954-10-04 1957-04-30 Oregon Saw Chain Corp Magnetic fastener positioning means for explosively actuated fastener driving tools
DE1701457U (de) * 1954-10-29 1955-06-30 Gerhard Steinmeyer Bolzensetzwerkzeug.
FR1117509A (fr) * 1954-12-10 1956-05-23 Perfectionnements aux outils pour enfoncer des chevilles ou des clous pointus dans un matériau dur au moyen d'une force explosive
US2765464A (en) * 1955-06-16 1956-10-09 Chester Tietig Nail-size extender for gas-actuated nail drivers

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1569153A (en) * 1925-02-20 1926-01-12 Temple Robert Captive bolt or like projectile device
US1864374A (en) * 1931-01-09 1932-06-21 Rheinische Metallw & Maschf Firearm
US2096002A (en) * 1935-10-14 1937-10-19 American Steel & Wire Co Rail bonding apparatus
US2132148A (en) * 1937-01-30 1938-10-04 Grace P Davis Impact press
US2258861A (en) * 1939-09-23 1941-10-14 Armstrong Cork Co Clip applying device
US2790173A (en) * 1946-12-19 1957-04-30 Ramset Fasteners Inc Receptor for positioning discs and the like at the muzzle of the barrel of explosively actuated tools
US2671484A (en) * 1948-11-18 1954-03-09 Wade Stevenson Magnetic tool
US2632890A (en) * 1949-08-25 1953-03-31 Tietig Chester Nail-driving firearm
US2778020A (en) * 1949-12-29 1957-01-22 Oregon Saw Chain Corp Stud driving tool
US2660726A (en) * 1951-06-07 1953-12-01 Weingart Ben Means for positioning and holding fasteners in explosively actuated fastener drivingtools
US2724116A (en) * 1951-07-12 1955-11-22 Termet Pierre Explosively actuated fastener driving tool
US2801416A (en) * 1952-08-07 1957-08-06 Remington Arms Co Inc Means for controlling the velocity of projectiles
GB744822A (en) * 1952-10-31 1956-02-15 Rolf Bertelsmann An improved device for driving bolts or short pointed members into constructional parts
CH325204A (de) * 1953-01-24 1957-10-31 Schulz Walter Bolzensetzgerät
FR1174052A (fr) * 1956-06-08 1959-03-05 Ramset Fasteners Outil pour enfoncer des éléments de fixation
US2930042A (en) * 1957-04-09 1960-03-29 Mine Safety Appliances Co Explosively actuated nail driving tool

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203609A (en) * 1961-04-13 1965-08-31 Bauer Carl Apparatus for driving bolts into masonry, structural parts and the like
US3275209A (en) * 1962-10-23 1966-09-27 Hansen Kern Borje Emanuel Nail-driving device
US3249279A (en) * 1963-09-04 1966-05-03 Behrend Herbert Bolt and charge operated tool for driving in a bolt
US3248032A (en) * 1964-01-06 1966-04-26 Hi Shear Corp Cartridge powered fastener driver
US3665583A (en) * 1968-05-09 1972-05-30 Ladd Tool Co Inc Suspension clip structure and apparatus and method for securing same to a work surface
US3632032A (en) * 1968-08-05 1972-01-04 Pierre Termet Apparatus using the energy produced by the explosion of a machine gun cartridge (shell)
US3860161A (en) * 1972-02-07 1975-01-14 Gunnebo Bruks Ab Cartridge tool with pocket arranged under the barrel
US3899113A (en) * 1972-08-07 1975-08-12 Olin Ski Ag Explosively actuated fastener driving power tools
US3918619A (en) * 1972-12-26 1975-11-11 Pierre Termet Safety device for seal fixing apparatus
US4040164A (en) * 1973-07-13 1977-08-09 Briles Franklin S Fastener driving gun
FR2607744A1 (fr) * 1986-12-03 1988-06-10 Prospection & Inventions Appareil de scellement a ejecteur perfectionne
EP0330950A3 (en) * 1988-03-03 1989-11-15 Hilti Aktiengesellschaft Powder-actuated fastening tool
EP0579575A1 (fr) * 1992-07-13 1994-01-19 HILTI Aktiengesellschaft Outil de scellement actionné par poudre
EP0826464A1 (fr) * 1996-09-02 1998-03-04 HILTI Aktiengesellschaft Outil de scellement actionné par poudre avec des moyens de rappel du piston
US5901894A (en) * 1996-09-02 1999-05-11 Hilti Aktiengesellschaft High pressure gas operated setting tool
US6161745A (en) * 1998-07-13 2000-12-19 Hilti Aktiengesellschaft Powder force-operated setting tool
US20160023340A1 (en) * 2014-07-24 2016-01-28 Taizhou Dajiang Ind. Co., Ltd. Spring reset device for piston mechanism
US20160023338A1 (en) * 2014-07-24 2016-01-28 Taizhou Dajiang Ind. Co. Ltd. Cylinder cover for steam powered nailing guns
US9707674B2 (en) * 2014-07-24 2017-07-18 Taizhou Dajiang Ind. Co., Ltd. Cylinder cover for steam powered nailing guns
US9796071B2 (en) * 2014-07-24 2017-10-24 Taizhou Dajiang Ind. Co., Ltd. Spring reset device for piston mechanism
CN109648521A (zh) * 2019-01-26 2019-04-19 浙江荣鹏气动工具股份有限公司 一种气动散钉枪
CN109648521B (zh) * 2019-01-26 2023-09-22 浙江荣鹏气动工具股份有限公司 一种气动散钉枪

Also Published As

Publication number Publication date
BE573218A (fr) 1959-03-16
CH355111A (fr) 1961-06-15
DE1262170B (de) 1968-02-29
GB856232A (en) 1960-12-14

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