US3363817A - Explosively-actuated repeating-action power tool - Google Patents

Explosively-actuated repeating-action power tool Download PDF

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Publication number
US3363817A
US3363817A US507374A US50737465A US3363817A US 3363817 A US3363817 A US 3363817A US 507374 A US507374 A US 507374A US 50737465 A US50737465 A US 50737465A US 3363817 A US3363817 A US 3363817A
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United States
Prior art keywords
magazine
loader
power tool
explosively
actuated
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Expired - Lifetime
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US507374A
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English (en)
Inventor
Brack Jacques
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ETEM DE TECHNIQUES MODERNES Ets
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ETEM DE TECHNIQUES MODERNES Ets
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/16—Staple-feeding devices, e.g. with feeding means, supports for staples or accessories concerning feeding devices
    • B25C5/1606—Feeding means
    • B25C5/1624—Feeding means employing mechanical feeding means
    • B25C5/1627—Feeding means employing mechanical feeding means of incremental type
    • 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

Definitions

  • This invention relates to so called stud-driving in guns, that is to say to explosively actuated power tools for driving in fastening means such as studs, pins, plugs, nails or like objects into hard and compact materials such as wood, cement, concrete, certain metals and other materials of like nature.
  • the novel repeating-type stud-driving gun in accordance with the invention circumvents the disadvantages referred to above inasmuch as it is of simple design, sturdy, easy to maintain and competitive in cost.
  • One design feature of the gun consists in the use of cartridge magazines in the form of rigid blocks, or so-called magazineloaders. These blocks are inexpensive to manufacture and are preferably of the disposable type or, in other Words, of the type which can be discarded after the ammunition contained therein has been used.
  • Another design feature of the gun lies in the fact that this latter can be fired from one hand only.
  • FIG. 1 is a view in partial longitudinal cross-section of the stud-driving in gun as shown with a portion of the magazine-loader and sliding breech-block in the rest position;
  • FIG. 2 is a similar view to the preceding, in which the magazinedoader and the sliding breech-block have just advanced by one step and the firing-pin is striking the cartridge which has been moved into the firing position;
  • FIG. 3 is a view in cross-section taken along the line III-III of FIG. 2;
  • FIG. 4 is a view in elevation and in partial crosssection showing the magazine-loader during introduction of this latter into the sliding breech-block (or ejection from said sliding breech-block);
  • FIG. 5 is a view in elevation and in partial cross-section taken along the line V-V of FIG. 6, showing the magazine-loader which is placed in position and locked within the sliding breech-block;
  • FIG. 6 is a view in partial cross-section taken along the line VIVI of FIG. 5;
  • FIG. 7 is a view in partial cross-section taken along the line VII-VlI of FIG. 8, showing the magazine-loader alone;
  • FIG. 8 is a view looking on the rear end of the magazine loader of FIG. 7;
  • FIG. 9 is a view in perspective of the front end of the firing-pin
  • FIG. 10 is a View in partial cross-section of an alternative form of construction of the front portion of the FIG. 11 is a partial view, with a portion broken away, of an alternative form of magazine-loader in which use is made of a simple cradle fitted with a toothed rack, and finally,
  • FIG. 12 is a view in partial cross-section of the system of braking and registering of the magazine-loader Within its housing.
  • the repeating-action stud-driving in gun (which, in this example, is in the form of two parts which are designed to slide telescopically with respect to each other) comprises, in axially slid-able relation to a front unit which will be described hereinafter, a rear sleeve 1 formed of two half-shells 1a and 1b which are rigidly fixed to the stock or grip 1c and which contain any percussion mechanism of suitable type.
  • said mechanism can consist of -a bolt body 2 of cylindrical shape which terminates in a tail-piece 2a provided with an annular groove 2b and balls 3 which cooperate with said groove. Said balls 3 are urged forward in the centripetal direction by springs 4 working inside radial recesses of a ring 5 which is locked inside the sleeve 1 by means of an inner tube -6.
  • the bolt body 2 has two opposite flat portions which delimit shoulders and with which a washer 7 is adapted to cooperate, said washer being subjected to the action of a forked member 8 which is actuated from a trigger 8a.
  • a restoring spring 9 exerts thrust on the washer 7 with the result that, as the trigger is pulled to the rear by the operator, the action thus produced serves, on the one hand, to compress the percusssion spring 10 which is applied against an annular shoulder formed by the front portion 20 of the bolt body 2 and, on the other hand, to exert a positive thrust on said bolt body 2 so as to overcome the retaining effort which is exerted by the assembly consisting of balls 3 and springs 4, thereby releasing said bolt body which is projected forward by the percussion spring 10.
  • the body body 2 is provided at the front end thereof with a firing-pin 11 which can strike the cartridge to be fired only if the sleeve 1 (together with the entire percussion or firing mechanism contained therein as Well as the stock and trigger) has been thrust in the forward position in the direction of the front unit which will be described later.
  • the rear end of the front unit comprises a guide bush 12 over which the inner tube 6 is guided, said guide bush being employed at the same time as a bearing point for the front end of the restoring spring 9 and as a guide for the front portion 20 of the bolt body 2.
  • the guide bush 12 is integral with a slide system consisting of a yoke 13 (in which is screwed a threaded endpiece 12a of the guide bush 12), of two small columns 14 and a cross-member 15 which is integral with a double barrel 16. Said double barrel opens into a splinter-guard 17 to which the ends of the small columns 14 are secured.
  • the yoke 13 is adapted to guide transversely to the longitudinal axis of the gun a magazine-actuating unit which consists in this case of a sliding breech-block 18 having a recess in the form of an elongated channel and provided on the rear face thereof with a toothed rack 19.
  • Said sliding breech-block which is adapted to accommodate the magazine-loader 20, is provided at one end with a stationary locking-catch 21 through which is slidably inserted a push-rod ejector 22 and, at the other end, with a swivelcatch 23 beneath which is formed an ejection ramp 24.
  • the swivel-catch 23 is integral with a threaded stem which is engaged in a tapped hole of the breech-block 18 and is so designed that the magazineloader is forcibly applied against said breech-block, thereby ensuring effective closure and gas-tightness of the loading chambers of the magazine-loader.
  • the guide yoke 13 (which forms a component of the slide system which is intended to accommodate and guide the assembly consisting of sliding breech-block 18 and magazine-loader 29) is provided on one side with a support 25a on which is pivotally mounted (about an axis which is perpendicular, on the one hand, to the longitudinal axis of the gun and, on the other hand, to the intended direction of motion of the sliding breechblock and magazine) a nut 25 which is integral with a lever 28 whose free extremity is engaged within a recess constituted by a milled portion 6a which is formed in the inner tube 6.
  • a pawl 26 is slidably fitted within a diametral bore formed in the nut 25 and is subjected to the action of a spring 27. Said pawl terminates in a control knob 2? and the tooth of said pawl is designed to cooperate with the ratchet teeth of the rack-bar 19.
  • the pawl 26 describes a path having the shape of a circular arc and initiates the one-step forward movement, that is to say by one tooth, of the rack 19 and consequently of the sliding breech-block 18 and magazineloader 2t as shown in FIG. 2.
  • the magazine-loader 20 which is shown in this example is a parallelpipedal block formed of aluminium, for example, and provided at each end both with a locking heel 3t) and with and inclined face for ejection purposes.
  • the block is pierced by a certain number of passageways 31, each forming a combustion chamber for the round of ammunition 32 contained therein and thus ensuring initial guiding of the stud, pin or plug 32a over a distance which is either equal to or greater than the length of said stud, pin or plug.
  • the passageways 31 of the magazine-loader are arranged in staggered rela tion in two parallel rows, and it will be apparent that the pitch as considered between the passageway of one row and the following passageway of the adjacent row corresponds to the pitch of the toothed rack 19.
  • the extremity of the firing-pin Ell is tapered to a parallelpipedal end-face 11a which is designed to reach the rim of the cartridge (which is in this case of the annular percussion or rim-firing type). That portion of the firing-pin end-face which projects radially from the rim of each cartridge is adapted to penetrate into a recess 33 which is provided for this purpose in the magazine-loader.
  • a cylindrical hole 34 of the sliding breech-block corresponds to each of said recesses 33. The full force of the firing-pin is thus applied to each cartridge.
  • FIG. 12 This system (of which the position is indicated in PEG. 1) consists of a socket 35 which is fixed in the yoke 13 and which serves as a guide for a ball 36. Said ball is urged in the forward direction by a spring 37 and this latter bears on an endplug 38 which is screwed into the socket referred to above.
  • the complete assembly is placed in the yoke 13 in such manner that the ball is capable of cooperating with the braking recesses formed by the openings of the cylindrical holes 34.
  • the two bores 16a and 16b of the double barrel are spaced at a distance which corresponds to the distance between the two series of loading passages of the magazine-loader, and that each bore serves for the terminal guiding of the tired stud or pin.
  • the slide system which serves to guide the magazine-loader and its toothed-rack drive system is adapted to accommodate magazine-loaders which can have different dimensions in the direction of the width (in a direction parallel to the bore 16).
  • That portion of the gun which is located opposite to the yoke 13 and consisting of the assembly which is formed by the barrel 16 and cross-member 15a is longitudinally movable and subjected to the action of elastic means which tend to thrust said assembly back in the direction of the yoke 13 so as to clamp the magazineloader 20.
  • the cross-member 15a is in this case pierced by two holes and thus permitted to slide on the small columns which are designated in this example by the reference 14a.
  • Coil springs 3a which surround said small columns and bear on the splinter-guard 17 exert a thrust on the cross-member 15a, the travel of which in the direction of the yoke 13 is limited by the fact that each small column 14a has a portion of larger diameter which is located near said yoke and accordingly provides an annular shoulder 14b which serves as an end-of-travel stop for the sliding cross-member 15a.
  • the loading chambers 31:; are no longer throughpassages as designated by the reference 31 in FIG. 7, but are closed at the rear end except for the aperture 40 which is provided for the entry of the firing-pin.
  • breech-block 18 which is provided with locking means.
  • Said breech-block can in that case be replaced by a simple sliding cradle 4-1 which is provided with apertures for the entry of the firing-pin 1 and which is fitted with the rack bar 19a, the magazine-loader being fitted in said cradle without being locked therein.
  • the gun can be provided with a single barrel, in which case the magazine-loader is designed to contain only a single row of cartridges.
  • the number of barrel bores provided can be greater than two and it is also possible to use in this form of embodiment magazine-loaders having more than two rows of cartridges; the toothed rack 19 is in that case designed to suit each particular case.
  • the magazineloader can have the shape of a ring, drum, circular arc; the breech-block or cradle and the slide system are modified accordingly for the utilization of a magazine-loader of this type and the shape of the toothed rack also has a shape similar to that of a toothed annulus (or segment of annulus).
  • the firing mechanism can be different from that which has been given as a specific example.
  • an explosively-actuated repeating-action power tool for driving in fastening means, having a tool body, at least one barrel and designed to accommodate a movable magazine-loader, control means for producing the step-by-step progression of said magazine-loader relatively to said tool body and a slidable operating unit operatively connected with said control means and operable longitudinally of said tool body
  • the said control means comprise a toothed rack to which said magazineloader is connectable, a support integral with the tool body, a pivotable nut rotatably mounted on said support and provided with a diametral through-hole, a pawl able to slide in said diametral hole and engageable with said toothed rack, a spring housed within said diametral hole for urging said pawl towards the toothed rack and a lever which is integral with said nut and operatively connected with said operating unit.
  • said power tool additionally comprises braking means for immobilizing and registering the magazineloader so that each loading chamber moves into alignment with the corresponding barrel after having moved forward by one step in a step-by-step progression, said braking means consisting of a ball carried by the power tool and guided in a direction parallel to the power tool, and elastic means for urging said ball against the sliding breech-block so as to cooperate with position-setting recesses constituted by the apertures which are provided for the entry of the firing-pin.
  • Magazine-loader for explosively actuated repeating action power tool wherein said magazine-loader consists of a parallelepipedal block which is slidable in the direction of its largest dimension transversely to the longitudinal aXis of the power tool and which is provided with a plurality of through-passages each having an axis at right angles to the direction of displacement of said magazine-loader and each forming an individual loading chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Coating Apparatus (AREA)
US507374A 1964-11-20 1965-11-12 Explosively-actuated repeating-action power tool Expired - Lifetime US3363817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1502064A CH430619A (fr) 1964-11-20 1964-11-20 Pistolet de scellement à répétition

Publications (1)

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US3363817A true US3363817A (en) 1968-01-16

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US507374A Expired - Lifetime US3363817A (en) 1964-11-20 1965-11-12 Explosively-actuated repeating-action power tool

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US (1) US3363817A (xx)
BE (1) BE672015A (xx)
CH (1) CH430619A (xx)
DE (1) DE1478871A1 (xx)
ES (1) ES319783A1 (xx)
GB (1) GB1116095A (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473719A (en) * 1965-09-17 1969-10-21 Sterling Eng Co Ltd Cartridge-operated tools
US3552625A (en) * 1968-11-13 1971-01-05 Hilti Ag Explosive charge operated setting tool or gun
US3554425A (en) * 1968-09-09 1971-01-12 Hilti Ag Magazine feeding mechanism for an explosive charge operated setting tool
US3565313A (en) * 1967-08-11 1971-02-23 Hilti Ag Device for driving anchoring members containing a cartridge magazine
US3632032A (en) * 1968-08-05 1972-01-04 Pierre Termet Apparatus using the energy produced by the explosion of a machine gun cartridge (shell)
US3670942A (en) * 1970-10-15 1972-06-20 Omark Industries Inc Automatic feeding of fasteners
US3804314A (en) * 1971-06-01 1974-04-16 British Screw Co Ltd Powder actuated devices
US4487353A (en) * 1981-11-18 1984-12-11 International Telephone And Telegraph Corporation Powder actuated tool
US5423469A (en) * 1993-11-05 1995-06-13 Innovative Quality Products Self-powered fastener system
US20140021236A1 (en) * 2010-06-25 2014-01-23 Handy & Harman Installation Tool for Universal Fastener
US11359383B2 (en) 2019-04-23 2022-06-14 Omg, Inc. Hidden fastener assembly for attaching grooved deck members
US11873648B2 (en) 2020-03-26 2024-01-16 Omg, Inc. Deck clip

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395354A (en) * 1943-12-24 1946-02-19 Temple Velocity Equipment Inc Driving tool
US2849715A (en) * 1953-02-03 1958-09-02 Olin Mathieson Fastener setting tool
US2930941A (en) * 1956-04-03 1960-03-29 Ind Timer Corp Punch card control system
US3048850A (en) * 1959-03-17 1962-08-14 Arden L Schilling Universal stud driver
US3095572A (en) * 1955-12-22 1963-07-02 Massacrier Jean-Marie Frederic Plugging gun of the repeating type
US3119113A (en) * 1959-12-03 1964-01-28 Sarmi S A Soc D Applic De Rech Percussion mechanism for fixing gun

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395354A (en) * 1943-12-24 1946-02-19 Temple Velocity Equipment Inc Driving tool
US2849715A (en) * 1953-02-03 1958-09-02 Olin Mathieson Fastener setting tool
US3095572A (en) * 1955-12-22 1963-07-02 Massacrier Jean-Marie Frederic Plugging gun of the repeating type
US2930941A (en) * 1956-04-03 1960-03-29 Ind Timer Corp Punch card control system
US3048850A (en) * 1959-03-17 1962-08-14 Arden L Schilling Universal stud driver
US3119113A (en) * 1959-12-03 1964-01-28 Sarmi S A Soc D Applic De Rech Percussion mechanism for fixing gun

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473719A (en) * 1965-09-17 1969-10-21 Sterling Eng Co Ltd Cartridge-operated tools
US3565313A (en) * 1967-08-11 1971-02-23 Hilti Ag Device for driving anchoring members containing a cartridge magazine
US3632032A (en) * 1968-08-05 1972-01-04 Pierre Termet Apparatus using the energy produced by the explosion of a machine gun cartridge (shell)
US3554425A (en) * 1968-09-09 1971-01-12 Hilti Ag Magazine feeding mechanism for an explosive charge operated setting tool
US3552625A (en) * 1968-11-13 1971-01-05 Hilti Ag Explosive charge operated setting tool or gun
US3670942A (en) * 1970-10-15 1972-06-20 Omark Industries Inc Automatic feeding of fasteners
US3804314A (en) * 1971-06-01 1974-04-16 British Screw Co Ltd Powder actuated devices
US4487353A (en) * 1981-11-18 1984-12-11 International Telephone And Telegraph Corporation Powder actuated tool
US5423469A (en) * 1993-11-05 1995-06-13 Innovative Quality Products Self-powered fastener system
US5497929A (en) * 1993-11-05 1996-03-12 Innovative Quality Prod Corp Self-powered fastener system
US5544800A (en) * 1993-11-05 1996-08-13 Innovative Quality Products Corporation Self-powered fastener system
US20140021236A1 (en) * 2010-06-25 2014-01-23 Handy & Harman Installation Tool for Universal Fastener
US10605288B2 (en) 2010-06-25 2020-03-31 Omg, Inc. Hidden deck fastener
US11359383B2 (en) 2019-04-23 2022-06-14 Omg, Inc. Hidden fastener assembly for attaching grooved deck members
US11873648B2 (en) 2020-03-26 2024-01-16 Omg, Inc. Deck clip

Also Published As

Publication number Publication date
GB1116095A (en) 1968-06-06
ES319783A1 (es) 1966-04-16
DE1478871A1 (de) 1969-05-29
BE672015A (xx) 1966-03-01
CH430619A (fr) 1967-02-15

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