EP0117179B1 - Explosive-actuated fastening tool with magazine - Google Patents
Explosive-actuated fastening tool with magazine Download PDFInfo
- Publication number
- EP0117179B1 EP0117179B1 EP84400174A EP84400174A EP0117179B1 EP 0117179 B1 EP0117179 B1 EP 0117179B1 EP 84400174 A EP84400174 A EP 84400174A EP 84400174 A EP84400174 A EP 84400174A EP 0117179 B1 EP0117179 B1 EP 0117179B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- orifices
- tool
- barrel
- loader
- inhibiting
- 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
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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
- B25C1/186—Feeding devices for cartridges or pellets
Definitions
- the present invention relates to an apparatus for sealing fasteners, comprising a barrel, arranged to receive a fastener intended to be driven in translation in the barrel under the action of the gases of combustion of a propellant charge, a cylinder head in which a striker is slidably mounted, a propellant charge charger, between the barrel and the breech, provided with orifices for receiving propellant charges and comprising means arranged to obstruct the propagation of the mechanical stress generated by the setting with a propellant charge, and means for driving the magazine while traveling.
- Apparatuses of this type are already more or less known, in particular by documents EP-A-O 041 103 and DE-A-2 716 430.
- the barrel is arranged to exit the charger, also suitable for this purpose, each propellant charge before it is ignited and thus move it away from those carried by the charger. This requires a complicated arrangement.
- the present invention therefore aims to provide a sealing device, of the type mentioned above, which is provided with simple means for obstructing the propagation of the mechanical stress generated by the ignition of a propellant charge, that is ie to eliminate, or greatly reduce, the risk of ignition by sympathetic ignition of the propellant charges placed on the charger.
- the present invention relates to a sealing device of the type mentioned above, characterized in that the means of the charger, arranged to obstruct the propagation of mechanical stress, comprise, between the charge receiving orifices , small sympathetic ignition inhibition holes.
- the propagation of the stress is strongly inhibited, failing to be completely stopped; and when it reaches one or other of the neighboring charges, its level is such that the risk of sympathetic ignition is considerably reduced, if not zero.
- the invention applies both to direct fire devices and to counterweight devices, indirect fire. It will be recalled here that, in devices of the latter type, a fastening element is driven therein under the action of the combustion gases by means of a counterweight slidingly mounted in the barrel.
- FIG. 1 is a front view of a preferred embodiment of the charger of the device of the invention, without propellant charges, and
- FIG. 2 is a sectional view along line II-II of Figure 1, the charger being shown with only two charge receiving ports and the two corresponding charges, for clarity.
- the loader 1 of the drawings is that of a device for sealing the weight fastening elements, or similar device. It includes a barrel holder, a barrel, mounted sliding in the barrel holder, a counterweight, sliding mounted in the barrel for, under the action of the combustion gases produced by the firing of a propellant charge, translation in the barrel of a fastening element previously introduced into the barrel, before this element enters a material intended to receive it, a breech, in which a striker is slidably mounted, and the magazine 1, disposed between the barrel and the cylinder head.
- a breech in which a striker is slidably mounted
- the magazine 1 disposed between the barrel and the cylinder head.
- the charger 1 is in the general form of an annular disc, formed for example in a plate, preferably of sheet metal, of relatively small thickness.
- the charger 1 has at its periphery teeth 3 arranged to cooperate with a drive lever arranged to be itself actuated by an arming lever during the arming of the device, and thus rotate step by step. -not, and against the action of elastic non-return means, the charger 1 on its hub to present at each step a new propellant charge opposite the striker of the breech on the one hand and the combustion chamber of the barrel on the other go.
- the charger 1 is provided with through orifices 4 for receiving propellant charges 5. These are circular orifices spaced angularly at regular intervals, all at the same radial distance from the center of the charger. There are a large number of them, eight in the example shown. Conventionally, the wall of the orifices 4 so that they match the shape of the charges 5. Thus, the rear part 6 of the wall of the orifices is shaped to receive the bead 7 of the base of the case of the charges. This rear part 6 is extended, towards the front, by a short tubular skirt 8 receiving part of the case 9 of the charges.
- the charger 1 is also provided with other through inhibition orifices 10.
- orifices 10 are small circular orifices, advantageously of smaller diameter than that of the receiving orifices 4, angularly spaced at regular intervals, all at the same radial distance from the center of the charger 1.
- This radial distance from the center of the charger 1 is in the present case smaller than that at which the receiving orifices 4 are arranged, but it could just as easily have been greater. It should therefore be noted that in a case as in the other, the inhibition orifices 10 are formed outside of the line segments joining the centers of two neighboring reception orifices 4, therefore on one side or the other. The inhibition orifices 10 are arranged substantially in line with the midpoints of these straight segments.
- the inhibition orifices 10 must prevent the mechanical stress generated at the level of a load 5 from coming too constraining, by means of the charger itself, the bead 7 of the base of the case of the neighboring charges.
- a charger comprising between two neighboring receiving orifices 4, a single circular muting orifice. It is clear that in order to reduce the level of mechanical stress at a reception orifice after it has propagated from a neighboring reception orifice, non-circular, or for example slot-like, orifice, could be provided. and have more than one between two receiving orifices, for example two.
- a charger has been described rotatably mounted on a hub. Of course, it would not go beyond the scope of the invention with a charger mounted to rotate inside a housing.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
La présente invention concerne un appareil de scellement d'éléments de fixation, comprenant un canon, agencé pour recevoir un élément de fixation destiné à être entraîné en translation dans le canon sous l'action des gaz de combustion d'une charge propulsive, une culasse dans laquelle un percuteur est monté coulissant, un chargeur porte-charges propulsives, entre le canon et la culasse, pourvu d'orifices de réception des charges propulsives et comportant des moyens agencés pour faire obstacle à la propagation de la contrainte mécanique engendrée par la mise à feu d'une charge propulsive, et des moyens pour entraîner le chargeur en déplacement.The present invention relates to an apparatus for sealing fasteners, comprising a barrel, arranged to receive a fastener intended to be driven in translation in the barrel under the action of the gases of combustion of a propellant charge, a cylinder head in which a striker is slidably mounted, a propellant charge charger, between the barrel and the breech, provided with orifices for receiving propellant charges and comprising means arranged to obstruct the propagation of the mechanical stress generated by the setting with a propellant charge, and means for driving the magazine while traveling.
Des appareils de ce type sont déjà plus ou moins connus, notamment par les documents EP-A-O 041 103 et DE-A-2 716 430.Apparatuses of this type are already more or less known, in particular by documents EP-A-O 041 103 and DE-A-2 716 430.
Dans l'appareil du document EP-A-O 041 103, le canon est agencé pour sortir du chargeur, aussi adapté à cet effet, chaque charge propulsive avant sa mise à feu et l'éloigner ainsi de celles portées par le chargeur. Cela nécessité un agencement compliqué.In the apparatus of document EP-A-O 041 103, the barrel is arranged to exit the charger, also suitable for this purpose, each propellant charge before it is ignited and thus move it away from those carried by the charger. This requires a complicated arrangement.
Dans l'appareil du document DE-A-2 716 430, l'obstacle à la propagation de la contrainte mécanique engendrée par la mise à feu d'une charge propulsive est crée par calfeutrage des charges dans deux plaques annulaires adjacentes du chargeur. Il s'agit, ici aussi, d'un agencement complexe.In the apparatus of document DE-A-2 716 430, the obstacle to the propagation of the mechanical stress generated by the ignition of a propellant charge is created by caulking the charges in two adjacent annular plates of the charger. Here, too, it is a complex arrangement.
La présente invention vise donc à proposer un appareil de scellement, du type mentionné ci-dessus, qui soit pourvu de moyens simples pour faire obstacle à la propagation de la contrainte mécanique engendrée par la mise à feu d'une charge propulsive, c'est-à-dire pour éliminer, ou diminuer fortement, le risque de mise à feu par allumage sympathique des charges propulsives disposées sur le chargeur.The present invention therefore aims to provide a sealing device, of the type mentioned above, which is provided with simple means for obstructing the propagation of the mechanical stress generated by the ignition of a propellant charge, that is ie to eliminate, or greatly reduce, the risk of ignition by sympathetic ignition of the propellant charges placed on the charger.
A cet effet, la présente invention concerne un appareil de scellement du type mentionné ci-dessus, caractérisé par le fait que les moyens du chargeur, agencés pour faire obstacle à la propagation de la contrainte mécanique, comprennent, entre les orifices de réception des charges, de petits orifices d'inhibition de l'allumage sympathique.To this end, the present invention relates to a sealing device of the type mentioned above, characterized in that the means of the charger, arranged to obstruct the propagation of mechanical stress, comprise, between the charge receiving orifices , small sympathetic ignition inhibition holes.
Grâce aux orifices d'inhibition de l'invention, la propagation de la contrainte est fortement inhibée, à défaut d'être complètement arrêtée; et quand celle-ci atteint l'une ou l'autre des charges voisines, son niveau est tel que le risque d'allumage sympathique, est considérablement réduit, sinon nul.Thanks to the inhibition orifices of the invention, the propagation of the stress is strongly inhibited, failing to be completely stopped; and when it reaches one or other of the neighboring charges, its level is such that the risk of sympathetic ignition is considerably reduced, if not zero.
La demanderesse n'entend pas bien entendu limiter la portée de son brevet à des chargeurs montés rotatifs sur eux-mêmes.The applicant does not intend, of course, to limit the scope of its patent to chargers rotatably mounted on themselves.
Bien entendu, l'invention s'applique aussi bien à des appareils à tir direct qu'à des appareils à masselotte, à tir indirect. On rappellera ici que, dans les appareils de ce dernier type, un élément de fixation y est entraîné sous l'action des gaz de combustion par l'intermédiaire d'une masselotte montée coulissante dans le canon.Of course, the invention applies both to direct fire devices and to counterweight devices, indirect fire. It will be recalled here that, in devices of the latter type, a fastening element is driven therein under the action of the combustion gases by means of a counterweight slidingly mounted in the barrel.
L'invention sera mieux comprise à l'aide de la description suivante d'une forme de réalisation préférée du chargeur de l'appareil de l'invention, en référence aux dessins annexés, sur lesquels:The invention will be better understood with the aid of the following description of a preferred embodiment of the charger of the apparatus of the invention, with reference to the appended drawings, in which:
La figure 1 est une vue de face d'une forme de réalisation préférée du chargeur de l'appareil de l'invention, sans charges propulsives, etFIG. 1 is a front view of a preferred embodiment of the charger of the device of the invention, without propellant charges, and
La figure 2 est une vue en coupe selon la ligne II-II de la figure 1, le chargeur étant représenté avec seulement deux orifices de réception de charge et les deux charges correspondantes, par souci de clarté.Figure 2 is a sectional view along line II-II of Figure 1, the charger being shown with only two charge receiving ports and the two corresponding charges, for clarity.
Le chargeur 1 des dessins est celui d'un appareil de scellement d'éléments de fixation à masselotte, ou appareil similaire. Il comprend un porte-canon, un canon, monté coulissant dans le porte-canon, une masselotte, montée coulissante dans le canon pour, sous l'action des gaz de combustion produits par la mise à feu d'une charge propulsive, entraîner en translation dans le canon un élément de fixation préalablement introduit dans le canon, avant que cet élément ne pénètre dans un matériau destiné à le recevoir, une culasse, dans laquelle un percuteur est monté coulissant, et le chargeur 1, disposé entre le canon et la culasse. Hormis le chargeur 1, les éléments ci-dessus de l'appareil de l'invention, tout comme d'ailleurs les autres, n'ont pas à être décrits plus avant ni illustrés par des dessins, car ils sont parfaitement connus de tout homme de métier.The loader 1 of the drawings is that of a device for sealing the weight fastening elements, or similar device. It includes a barrel holder, a barrel, mounted sliding in the barrel holder, a counterweight, sliding mounted in the barrel for, under the action of the combustion gases produced by the firing of a propellant charge, translation in the barrel of a fastening element previously introduced into the barrel, before this element enters a material intended to receive it, a breech, in which a striker is slidably mounted, and the magazine 1, disposed between the barrel and the cylinder head. Apart from the charger 1, the above elements of the apparatus of the invention, just like the others, need not be described further nor illustrated by drawings, since they are perfectly known to any man. business.
Le chargeur 1 se présente sous la forme générale d'un disque annulaire, formé par exemple dans une plaque, de préférence de tôle, de relativement faible épaisseur.The charger 1 is in the general form of an annular disc, formed for example in a plate, preferably of sheet metal, of relatively small thickness.
Il est pourvu d'un orifice central 2, par lequel il est monté libre sur un moyeu solidaire d'une bascule agencée pour pivoter sur le porte-canon entre une position extérieure de chargement du chargeur et une position intérieure de fonctionnement, dans laquelle il est en contact avec la paroi antérieure de la culasse. Les moyens supports du chargeur 1 sont également connus de l'homme de métier, ne serait-ce que par le brevet DT-AS 2 031 994.It is provided with a central orifice 2, by which it is freely mounted on a hub secured to a rocker arranged to pivot on the barrel holder between an external position for loading the magazine and an internal position of operation, in which it is in contact with the anterior wall of the cylinder head. The support means of the charger 1 are also known to those skilled in the art, if only by the patent DT-AS 2,031,994.
Le chargeur 1 comporte à sa périphérie des dents 3 agencées pour coopérer avec un levier d'entraînement disposé pour être lui-même actionné par un levier d'armement au cours de l'armement de l'appareil, et faire ainsi tourner pas-à-pas, et contre l'action de moyens élastiques antiretour, le chargeur 1 sur son moyeu pour présenter à chaque pas une nouvelle charge propulsive en face du percuteur de la culasse d'une part et de la chambre à combustion du canon d'autre part.The charger 1 has at its
Le chargeur 1 est pourvu d'orifices traversants 4 de réception de charges propulsives 5. Ce sont des orifices circulaires espacés angulairement de façon régulière, tous à la même distance radiale du centre du chargeur. Ils sont en nombre important, huit dans l'exemple représenté. De façon conventionnelle, on a conformé la paroi des orifices 4 pour qu'ils épousent la forme des charges 5. Ainsi, la partie postérieure 6 de la paroi des orifices est conformée pour recevoir le bourrelet 7 du culot de l'étui des charges. Cette partie postérieure 6 est prolongée, vers l'avant, par une courte jupe tubulaire 8 recevant une partie de l'étui 9 des charges.The charger 1 is provided with through orifices 4 for receiving propellant charges 5. These are circular orifices spaced angularly at regular intervals, all at the same radial distance from the center of the charger. There are a large number of them, eight in the example shown. Conventionally, the wall of the orifices 4 so that they match the shape of the charges 5. Thus, the rear part 6 of the wall of the orifices is shaped to receive the bead 7 of the base of the case of the charges. This rear part 6 is extended, towards the front, by a short
Le chargeur 1 est en outre pourvu d'autres orifices traversants d'inhibition 10.The charger 1 is also provided with other through
Ces orifices 10, dans l'exemple représenté, sont de petits orifices circulaires, avantageusement de diamètre plus petit que celui des orifices de réception 4, espacés angulairement de façon régulière, tous à la même distance radiale du centre du chargeur 1.These
Cette distance radiale du centre du chargeur 1 est dans le cas d'espèce plus petite que celle à laquelle sont disposés les orifices de réception 4, mais elle aurait pu tout aussi bien être plus grande. Il est donc à noter que dans un cas comme dans i'autre, les orifices d'inhibition 10 sont ménagés hors des segments de droite joignant les centres de deux orifices de réception 4 voisins, donc d'un côté ou de l'autre. Les orifices d'inhibition 10 sont disposés sensiblement au droit des points milieux de ces segments de droite.This radial distance from the center of the charger 1 is in the present case smaller than that at which the receiving orifices 4 are arranged, but it could just as easily have been greater. It should therefore be noted that in a case as in the other, the
Les orifices 10, donc au nombre de huit dans l'exemple considéré, agissent comme des obstacles à la propagation de la contrainte mécanique engendrée par la mise à feu d'une charge propulsive considérée et ont pour effet d'inhiber ou au moins de diminuer fortement le risque de mise à feu par allumage sympathique des charges propulsives voisines de la charge considérée.The
En d'autres termes, les orifices d'inhibition 10 doivent empêcher la contrainte mécanique engendrée au niveau d'une charge 5 de venir trop contraindre, par l'intermédiaire du chargeur lui-même, le bourrelet 7 du culot de l'étui des charges voisines.In other words, the
On a représenté sur les dessins un chargeur comportant entre deux orifices de réception voisins 4, un seul orifice d'inhibition circulaire. Il est clair que pour réduire le niveau de la contrainte mécanique au niveau d'un orifice de réception après sa propagation depuis un orifice de réception voisin, on pourrait prévoir des orifices d'inhi- bition non circulaires, par exemple en forme de fente, et en disposer plus d'un entre deux orifices de réception, par exemple deux.There is shown in the drawings a charger comprising between two neighboring receiving orifices 4, a single circular muting orifice. It is clear that in order to reduce the level of mechanical stress at a reception orifice after it has propagated from a neighboring reception orifice, non-circular, or for example slot-like, orifice, could be provided. and have more than one between two receiving orifices, for example two.
On a décrit un chargeur monté rotatif sur un moyeu. Bien entendu, on ne sortirait pas du cadre de l'invention avec un chargeur monté rotatif à l'intérieur d'un logement.A charger has been described rotatably mounted on a hub. Of course, it would not go beyond the scope of the invention with a charger mounted to rotate inside a housing.
On n'en sortirait pas davantage en ne prévoyant pas de dents d'entraînement en rotation mais des moyens d'entraînement agissant directement sur la partie en saillie des charges jouant ainsi le rôle d'ergot d'entraînement.We would not get out of it any more by not providing rotational drive teeth but drive means acting directly on the projecting part of the loads thus playing the role of drive pin.
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8301403 | 1983-01-28 | ||
| AU27991/84A AU575564B2 (en) | 1984-05-14 | 1984-05-14 | Loader for fastener driving tools |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0117179A2 EP0117179A2 (en) | 1984-08-29 |
| EP0117179A3 EP0117179A3 (en) | 1986-02-12 |
| EP0117179B1 true EP0117179B1 (en) | 1988-10-05 |
Family
ID=3716236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84400174A Expired EP0117179B1 (en) | 1983-01-28 | 1984-01-26 | Explosive-actuated fastening tool with magazine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4610382A (en) |
| EP (1) | EP0117179B1 (en) |
| AU (1) | AU575564B2 (en) |
| CA (1) | CA1214301A (en) |
| FR (1) | FR2540028B1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE34258E (en) * | 1990-10-29 | 1993-05-25 | Disk for carrying propellant charges | |
| US5075997A (en) * | 1990-10-29 | 1991-12-31 | Haytayan Harry M | Disk for carrying propellant charges |
| US5285766A (en) * | 1992-07-30 | 1994-02-15 | Crosman Corporation | Gun with removable rotary ammunition clip |
| US6059162A (en) * | 1998-10-16 | 2000-05-09 | Illinois Tool Works Inc. | Exhaust baffle and spring assisted reset and dampener for powder actuated tool |
| GB0216362D0 (en) * | 2002-07-13 | 2002-08-21 | Rolls Royce Plc | Stress defender holes |
| TW200923313A (en) * | 2007-11-30 | 2009-06-01 | Maruzen Co Ltd | Magazine for air gun having rotary clip |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1202343A (en) * | 1916-05-26 | 1916-10-24 | Smith & Wesson | Cartridge-clip. |
| DE478629C (en) * | 1926-01-19 | 1929-06-29 | Adrian & Rode | Cork pistol with revolver disc |
| FR1146268A (en) * | 1956-03-26 | 1957-11-08 | Barbotte & Cie | Primer toy gun and its primers |
| US3523383A (en) * | 1967-04-01 | 1970-08-11 | Dino Sposimo | Annular loader having flexible arms for loading explosive charges into toy revolving cylinder firearms |
| DE1678199A1 (en) * | 1968-01-09 | 1971-12-30 | Dynamit Nobel Ag | Charging slots for drive cartridges for devices for commercial use |
| DE1923911B2 (en) * | 1969-05-10 | 1971-08-05 | Tornado Gmbh, 4032 Lintorf | Piston type internal combustion bolt setter |
| DE2031994B2 (en) * | 1970-06-29 | 1971-08-05 | Tornado Gmbh, 4032 Lintorf | Bolt-firing tool |
| US3921326A (en) * | 1974-04-22 | 1975-11-25 | Karlsruhe Augsburg Iweka | Cartridge holder and method of loading a firearm |
| DE2716430A1 (en) * | 1977-04-14 | 1978-10-19 | Ferd Wicke Nachf | Double capacity toy cap revolver - has partitions between drum chambers with additional protrusions and detonating caps on carrier disc |
| DE3021186A1 (en) * | 1980-06-04 | 1981-12-10 | Hilti AG, 9494 Schaan | MAGAZINE FOR SLEEVELESS DRIVE CHARGES |
-
1983
- 1983-01-28 FR FR8301403A patent/FR2540028B1/en not_active Expired
-
1984
- 1984-01-26 EP EP84400174A patent/EP0117179B1/en not_active Expired
- 1984-03-20 CA CA000449958A patent/CA1214301A/en not_active Expired
- 1984-05-14 AU AU27991/84A patent/AU575564B2/en not_active Ceased
- 1984-05-30 US US06/615,492 patent/US4610382A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4610382A (en) | 1986-09-09 |
| CA1214301A (en) | 1986-11-25 |
| FR2540028A1 (en) | 1984-08-03 |
| EP0117179A3 (en) | 1986-02-12 |
| FR2540028B1 (en) | 1988-06-17 |
| AU575564B2 (en) | 1988-08-04 |
| AU2799184A (en) | 1985-11-21 |
| EP0117179A2 (en) | 1984-08-29 |
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