EP0931626A1 - Fastening tool with a piston driven by compressed gas - Google Patents
Fastening tool with a piston driven by compressed gas Download PDFInfo
- Publication number
- EP0931626A1 EP0931626A1 EP99400187A EP99400187A EP0931626A1 EP 0931626 A1 EP0931626 A1 EP 0931626A1 EP 99400187 A EP99400187 A EP 99400187A EP 99400187 A EP99400187 A EP 99400187A EP 0931626 A1 EP0931626 A1 EP 0931626A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- sleeve
- buffer guide
- support
- combustion chamber
- 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.)
- Granted
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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
Definitions
- the invention relates to a piston pad fixing device powered by compressed gas comprising a buffer guide, a cylinder in which is mounted the piston, a combustion chamber sleeve intended to close the rear chamber with a cylinder head and, at the front, with the piston and the cylinder, a sensor for closing the chamber, an injection pipe for compressed gas in the chamber from a compressed gas cartridge and ignition means intended to explode the gas contained in the combustion chamber during a shot.
- document EP-0 788 863 proposes an apparatus of the type defined above, in which the buffer guide makes probe function for pressing and closing the chamber combustion, and comprising mechanical isolation springs arranged between the cylinder and a pad guide holder integral with the pad guide, the cylinder can move forwards with respect to the pad guide holder, against the action of the insulation springs.
- the cylinder is driven forward and compresses the springs then, on firing, under the action of the recoil force, the cylinder moves back and releases the springs, the buffer guide thus being held in abutment against the material thanks to the insulation springs.
- Such an apparatus has a relatively complex structure. Furthermore, when when the device is pressed, an operator must try to compress the insulation spring.
- the present invention proposes to solve these problems.
- the invention relates to a tampon fixing device in a support, with piston propelled by compressed gas comprising a cylinder in which is mounted the piston, a combustion chamber, a sleeve combustion chamber intended to close the chamber, at the rear, with a cylinder head and, at the front, with the piston and the cylinder, a buffer guide making probe function for pressing and closing the chamber combustion, apparatus characterized in that it comprises a surface of thrust and a bearing surface, respectively integral with the buffer guide and of the sleeve and arranged to join in translation backwards, when the buffer guide is pressed, in order to close the combustion, and to dissociate when the device recedes in reaction to a shot, in order to ensure the support of the buffer guide against the support.
- the sleeve and the feeler pad guide cooperating with a single press may retreat, retreating in response to the explosion of compressed gas in the combustion chamber, without driving the buffer guide.
- the device comprises means for driving towards the rear of the sleeve, integral with the sleeve, and which are integral said front bearing surface.
- the drive means comprise at least an integral drive arm, at one of its ends, a support finger provided with said front bearing surface.
- the buffer guide may include a groove for receiving the support finger, provided with a front wall acting as a pushing surface.
- the device comprises a housing which is secured to the cylinder and a pad guide holder secured to the cylinder, in which the buffer guide is slidably mounted.
- the cylinder could move relative to the door pad guide integral with the pad guide, while in the invention, the cylinder is integral with the door of the buffer guide in which is mounted sliding the pad guide, which turns out to be a simpler structure to achieve.
- the fixing device may also include means for returning to the front of the drive means, in order to recall the buffer guide towards the front, in a rest position, when removed from support.
- the fixing device shown comprises, conventionally, in a case 1, rear cylinder head 2, combustion chamber 3, sleeve combustion chamber 4, a cylinder 5, a piston 6, a buffer guide 8 and a door of the buffer guide 7. All these elements of the apparatus are of axis 9.
- the piston 6, provided with a rear head, is slidably mounted in the cylinder 5 which is integral with the housing 1.
- the sliding of the pad guide 2 in the pad guide holder 7 is limited by a bush 42, integral with the pad guide holder 7, comprising a part front 13 mounted around the pad guide holder 7 and a part posterior 44, narrowed, surrounding the buffer guide 8, in line with a opening 47 made in the tampon guide holder 7.
- the rear part 44 of the sleeve 42 is slidably mounted on the buffer guide 8 between front 45 and rear 46 stops of the buffer guide 8 in order to limit the relative sliding of the latter relative to the buffer guide holder 7.
- the combustion chamber sleeve 4 is slidably mounted on the cylinder 5 and comprises, at the rear, a neck 10 provided with an annular rim rear 11 and intended to be fitted around a corresponding part 12 of the cylinder head 2 until the flange 11 abuts against a surface corresponding 13 of the cylinder head 2, in order to close the combustion chamber 3 at the back.
- Part 12 comprises an external annular groove carrying a seal 14.
- the sleeve 4 is also intended to close the combustion 3, at the front, with the piston 6 and the cylinder 5 which saves rear an external annular groove carrying a seal 15. Seals 14 and 15 are intended to seal respectively between the sleeve 4 and the cylinder head 2 and between cylinder 5 and sleeve 4.
- the head of the piston 6 houses two external peripheral annular grooves bearing seals 6 ', 6 "intended to ensure the seal between the cylinder 5 and the piston head 6.
- the apparatus further comprises a housing for receiving a cartridge of compressed gas, not shown.
- An injection pipe connected to the cartridge compressed gas, opens into the combustion chamber 3, through the cylinder head 2, for injecting the compressed gas into chamber 3.
- the injection pipe is not shown.
- the cylinder head 2 carries a mixing fan 16, a firing device, not shown, and a switch 17 for controlling the fan 16 intended to be actuated by the rear edge 11 of the neck 10 when the latter comes into abutment against the surface 13 of the cylinder head 2.
- the cylinder 5 contains at the front a shock absorber 18, integral with the cylinder 5, against which the head of the piston 6, propelled forward when fired, is intended to come up against.
- a buffer supply magazine 19 communicates with the buffer guide 8, for loading the buffer into the buffer guide 8.
- Two arms 20, 21 for driving towards the rear of the sleeve 4, symmetrical from each other with respect to the axis 9, extend substantially along and at the outside of the buffer guide holder 7 and of the cylinder 5 and are secured, here by screwing, from the sleeve 4, at their rear ends.
- the two drive arms 20, 21 are connected to each other by a part link 22, at their anterior ends.
- the finger 23 extends through a light 27, formed in the buffer guide holder 7, and is received in a groove 25 external formed in the buffer guide 8 and parallel to the axis 9.
- connection part 22 household a lumen 48 for passing the screws 41 extending parallel to the axis 9 and allowing the finger 23 and the set of two arms 20 to be offset axially, 21 and part 22, depending on the desired penetration of the tampon into the support.
- the buffer guide 8 acts as a pressing and closing feeler of the combustion chamber 3, via the drive arms 20, 21.
- Each of the drive arms 20, 21 comprises, in the vicinity of its rear end, a thrust pin 24, 26 folded towards the cylinder 5, substantially at right angles.
- the two push fingers 24, 26 are mounted sliding on cylinder 5 respectively against the action of two springs 35, 36 forwards forward which are in support, at the rear, against two bearing surfaces 37, 38 of the cylinder 5 and, at the front, against the fingers 24, 26.
- the springs 35, 36 are intended to return towards the front, in the position of rest, the drive arms 20, 21 and therefore the sleeve 4, when from the support outlet of the device, as will be explained in the description of the device's operation.
- the cylinder 5 further comprises two external front stops 39, 40, for the fingers 24, 26, symmetrical to each other with respect to the axis 9, intended to limit the forward sliding of the arms 20, 21 relative to the cylinder 5.
- the buffer guide 8 When the device presses against the support 100, the buffer guide 8 is driven rearward relative to the buffer guide holder 7, to the cylinder 5 and to the housing 1.
- the thrust surface 30 of the buffer guide 8 and the surface support 29 integral with the drive arms 20, 21, bearing one against the other, are integral in rearward translation. Therefore, under the action of moving the buffer guide 8, the drive arms 20, 21 drive the sleeve 4 towards the rear, until the rear edge 11 of the neck 10 of the sleeve 4 abuts against the surface 13 of the cylinder head 2.
- the combustion chamber 3 In this position of the sleeve 4, the combustion chamber 3 is closed at the rear by the cylinder head 2 and, at the front, by the head of the piston 6 and the cylinder 5 ( Figures 3 and 4).
- the firing device When fired, the firing device explodes the compressed gas contained in combustion chamber 3, which creates pressure inside the chamber 3 under the action of which the piston 6 is propelled forward. A buffer having been placed in the buffer guide 8, the piston 6 comes strike the tampon which is propelled forward and fixes itself in the support 100. At the end of the stroke, the head of the piston 6 abuts against the damper 18.
- the shot causes in reaction a recoil force which tends to recoil the device.
- the bearing surface 29 of the finger 2 secured to the arms 20, 21 is detached from the pushing surface 30 of the buffer guide 8 so that the buffer guide 8 does not move back and the supporting finger 23 slides backwards in the throat of reception 25. Thanks to this, the buffer guide 8 is held in abutment against the support 100, despite the retreat of the cylinder head-housing-cylinder-door assembly buffer guide-sleeve-drive arm 2, 1, 5, 7, 4, 20, 21.
- the combustion gases escape from the cylinder 5 and the combustion chamber 3, in known manner, by a valve exhaust.
- the piston 6 is driven rearward by vacuum and returns to the rest position.
- the return springs 35, 36 relax and drive forward the drive arms 20, 21, the buffer guide 8 and the sleeve 4 which return to the rest position.
- the combustion chamber 3 thus opens again at the rear.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Fluid-Damping Devices (AREA)
- Telephone Function (AREA)
- Compressor (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
L'invention concerne un appareil de fixation de tampon à piston propulsé par gaz comprimé comprenant un guide-tampon, un cylindre dans lequel est monté le piston, un manchon de chambre de combustion destiné à fermer la chambre à l'arrière avec une culasse et, à l'avant, avec le piston et le cylindre, un palpeur de fermeture de la chambre, un conduit d'injection de gaz comprimé dans la chambre depuis une cartouche de gaz comprimé et des moyens d'allumage destinés à faire exploser le gaz contenu dans la chambre de combustion lors d'un tir.The invention relates to a piston pad fixing device powered by compressed gas comprising a buffer guide, a cylinder in which is mounted the piston, a combustion chamber sleeve intended to close the rear chamber with a cylinder head and, at the front, with the piston and the cylinder, a sensor for closing the chamber, an injection pipe for compressed gas in the chamber from a compressed gas cartridge and ignition means intended to explode the gas contained in the combustion chamber during a shot.
Au tir, l'explosion du gaz dans la chambre induit en réaction une force de recul qui tend à faire décoller l'appareil, et surtout le guide-tampon, du matériau support sur lequel il est en appui. Un tel décollement s'avère généralement néfaste à la fixation du tampon qui, au lieu de s'enfoncer dans le matériau, se crochète, ou même se casse, notamment dans le cas où le matériau est dur, en béton par exemple.When fired, the explosion of the gas in the chamber induces in reaction a force of setback which tends to make the device, and especially the pad guide, take off from the support material on which it is supported. Such detachment turns out generally harmful to the attachment of the tampon which, instead of sinking into the material, hooks, or even breaks, especially in the case where the material is hard, in concrete for example.
Pour résoudre ce problème, le document EP-0 788 863 propose un appareil de fixation du type défini ci-dessus, dans lequel le guide-tampon fait fonction de palpeur de mise en appui et de fermeture de la chambre de combustion, et comprenant des ressorts d'isolation mécanique disposés entre le cylindre et un porte guide-tampon solidaire du guide-tampon, le cylindre pouvant se déplacer vers l'avant par rapport au porte guide-tampon, contre l'action des ressorts d'isolation. Lors de la mise en appui de l'appareil contre le matériau, le cylindre est entraíné vers l'avant et comprime les ressorts puis, au tir, sous l'action de la force de recul, le cylindre recule et relâche les ressorts, le guide-tampon étant ainsi maintenu en appui contre le matériau grâce aux ressorts d'isolation.To solve this problem, document EP-0 788 863 proposes an apparatus of the type defined above, in which the buffer guide makes probe function for pressing and closing the chamber combustion, and comprising mechanical isolation springs arranged between the cylinder and a pad guide holder integral with the pad guide, the cylinder can move forwards with respect to the pad guide holder, against the action of the insulation springs. When the device is pressed against the material, the cylinder is driven forward and compresses the springs then, on firing, under the action of the recoil force, the cylinder moves back and releases the springs, the buffer guide thus being held in abutment against the material thanks to the insulation springs.
Un tel appareil présente un structure relativement complexe. En outre, lors de la mise en appui de l'appareil, un opérateur doit s'efforcer de comprimer le ressort d'isolation.Such an apparatus has a relatively complex structure. Furthermore, when when the device is pressed, an operator must try to compress the insulation spring.
La présente invention propose de résoudre ces problèmes.The present invention proposes to solve these problems.
A cet effet, l'invention concerne un appareil de fixation de tampon dans un support, à piston propulsé par gaz comprimé comprenant un cylindre dans lequel est monté le piston, une chambre de combustion, un manchon de chambre de combustion destiné à fermer la chambre, à l'arrière, avec une culasse et, à l'avant, avec le piston et le cylindre, un guide-tampon faisant fonction de palpeur de mise en appui et de fermeture de la chambre de combustion, appareil caractérisé par le fait qu'il comprend une surface de poussée et une surface d'appui, respectivement solidaires du guide-tampon et du manchon et agencées pour se solidariser en translation vers l'arrière, lors de la mise en appui du guide-tampon, afin de fermer la chambre de combustion, et pour se désolidariser au recul de l'appareil en réaction à un tir, afin d'assurer le maintien en appui du guide-tampon contre le support.To this end, the invention relates to a tampon fixing device in a support, with piston propelled by compressed gas comprising a cylinder in which is mounted the piston, a combustion chamber, a sleeve combustion chamber intended to close the chamber, at the rear, with a cylinder head and, at the front, with the piston and the cylinder, a buffer guide making probe function for pressing and closing the chamber combustion, apparatus characterized in that it comprises a surface of thrust and a bearing surface, respectively integral with the buffer guide and of the sleeve and arranged to join in translation backwards, when the buffer guide is pressed, in order to close the combustion, and to dissociate when the device recedes in reaction to a shot, in order to ensure the support of the buffer guide against the support.
Le manchon et le guide-tampon palpeur coopérant par simple appui, sans être fixés l'un à l'autre, pour fermer la chambre de combustion, le manchon peut reculer, au recul en réaction à l'explosion du gaz comprimé dans la chambre de combustion, sans entraíner le guide-tampon.The sleeve and the feeler pad guide cooperating with a single press, without be fixed to each other, to close the combustion chamber, the sleeve may retreat, retreating in response to the explosion of compressed gas in the combustion chamber, without driving the buffer guide.
Avantageusement, l'appareil comprend des moyens d'entraínement vers l'arrière du manchon, solidaires du manchon, et desquels sont solidaires ladite surface avant d'appui.Advantageously, the device comprises means for driving towards the rear of the sleeve, integral with the sleeve, and which are integral said front bearing surface.
Avantageusement encore, les moyens d'entraínement comprennent au moins un bras d'entraínement solidaire, à l'une de ses extrémités, d'un doigt d'appui pourvu de ladite surface avant d'appui.Advantageously also, the drive means comprise at least an integral drive arm, at one of its ends, a support finger provided with said front bearing surface.
Dans ce cas, le guide-tampon peut comprendre une gorge de réception du doigt d'appui, pourvue d'une paroi avant faisant office de surface de poussée.In this case, the buffer guide may include a groove for receiving the support finger, provided with a front wall acting as a pushing surface.
Dans une forme de réalisation particulière, l'appareil comprend un boítier duquel est solidaire le cylindre et un porte guide-tampon solidaire du cylindre, dans lequel est monté coulissant le guide-tampon.In a particular embodiment, the device comprises a housing which is secured to the cylinder and a pad guide holder secured to the cylinder, in which the buffer guide is slidably mounted.
Dans l'art antérieur, le cylindre pouvait se déplacer par rapport au porte guide-tampon solidaire du guide-tampon, alors que dans l'invention, le cylindre est solidaire du porte du guide-tampon dans lequel est monté coulissant le guide-tampon, ce qui s'avère être une structure plus simple à réaliser.In the prior art, the cylinder could move relative to the door pad guide integral with the pad guide, while in the invention, the cylinder is integral with the door of the buffer guide in which is mounted sliding the pad guide, which turns out to be a simpler structure to achieve.
L'appareil de fixation peut également comprendre des moyens de rappel vers l'avant des moyens d'entraínement, afin de rappeler le guide-tampon vers l'avant, dans une position de repos, lorsqu'on le retire d'appui. The fixing device may also include means for returning to the front of the drive means, in order to recall the buffer guide towards the front, in a rest position, when removed from support.
L'invention sera mieux comprise à l'aide de la description suivante d'une forme de réalisation particulière de l'appareil de fixation de l'invention en référence au dessin annexé sur lequel:
- la figure 1 représente une vue en coupe axiale de l'appareil de fixation, au repos;
- la figure 2 représente une vue en coupe axiale de l'appareil de fixation de la figure 1, au repos, dans le plan de coupe II-II perpendiculaire au plan de coupe de la figure 1;
- la figure 3 représente une vue en coupe de l'appareil de la figure 1, lors d'une mise en appui, dans le plan de coupe de la figure 1;
- la figure 4 représente une vue en coupe de l'appareil de la figure 3, lors de la mise en appui, dans le plan de coupe IV-IV perpendiculaire au plan de coupe de la figure 3 et
- la figure 5 représente une vue en perspective de l'appareil de la figure 1, sans boítier.
- Figure 1 shows an axial sectional view of the fixing device, at rest;
- 2 shows an axial sectional view of the fixing device of Figure 1, at rest, in the section plane II-II perpendicular to the section plane of Figure 1;
- 3 shows a sectional view of the device of Figure 1, when resting, in the section plane of Figure 1;
- FIG. 4 represents a cross-sectional view of the apparatus of FIG. 3, when placed in abutment, in the cutting plane IV-IV perpendicular to the cutting plane of FIG. 3 and
- Figure 5 shows a perspective view of the device of Figure 1, without housing.
L'appareil de fixation représenté comporte, de façon classique, dans un
boítier 1, une culasse arrière 2, une chambre de combustion 3, un manchon
de chambre de combustion 4, un cylindre 5, un piston 6, un guide-tampon 8
et un porte du guide-tampon 7. Tous ces éléments de l'appareil sont d'axe 9.
Le piston 6, pourvu d'une tête postérieure, est monté coulissant dans le
cylindre 5 qui est solidaire du boítier 1.The fixing device shown comprises, conventionally, in a
case 1,
Le guide-tampon 8, faisant saillie hors du boítier 1 à l'avant, est monté
coulissant dans le porte guide-tampon 7 qui est solidaire du boítier 1. Le
coulissement du guide-tampon 2 dans le porte guide-tampon 7 est limité par
une douille 42, solidaire du porte guide-tampon 7, comportant une partie
antérieure 13 montée autour du porte guide-tampon 7 et une partie
postérieure 44, rétrécie, entourant le guide-tampon 8, au droit d'une
ouverture 47 ménagée dans le porte guide-tampon 7. La partie postérieure
44 de la douille 42 est montée coulissante sur le guide-tampon 8 entre des
butées avant 45 et arrière 46 du guide-tampon 8 afin de limiter le
coulissement relatif de celui-ci par rapport au porte guide-tampon 7. The
Le manchon de chambre de combustion 4 est monté coulissant sur le
cylindre 5 et comprend, à l'arrière, un col 10 pourvu d'un rebord annulaire
arrière 11 et destiné à s'emmancher autour d'une partie correspondante 12 de
la culasse 2 jusqu'à ce que le rebord 11 vienne en butée contre une surface
correspondante 13 de la culasse 2, afin de fermer la chambre de combustion
3 à l'arrière. La partie 12 comprend une gorge annulaire externe portant un
joint 14. Le manchon 4 est également destiné à fermer la chambre de
combustion 3, à l'avant, avec le piston 6 et le cylindre 5 qui ménage à
l'arrière une gorge annulaire externe portant un joint 15. Les joints 14 et 15
sont destinés à assurer l'étanchéité respectivement entre le manchon 4 et la
culasse 2 et entre le cylindre 5 et le manchon 4.The
La tête du piston 6 ménage deux gorges annulaires périphériques externes
portant des joints d'étanchéité 6', 6" destinés à assurer l'étanchéité entre le
cylindre 5 et la tête du piston 6.The head of the
L'appareil comprend en outre un logement de réception d'une cartouche de
gaz comprimé, non représenté. Un conduit d'injection, relié à la cartouche de
gaz comprimé, débouche dans la chambre de combustion 3, par la culasse 2,
pour l'injection du gaz comprimé dans la chambre 3. Le conduit d'injection
n'est pas représenté.The apparatus further comprises a housing for receiving a cartridge of
compressed gas, not shown. An injection pipe, connected to the cartridge
compressed gas, opens into the
La culasse 2 porte un ventilateur de mélange 16, un dispositif de mise à feu,
non représenté, et un interrupteur 17 de commande du ventilateur 16 destiné
à être actionné par le rebord arrière 11 du col 10 lorsque celui-ci vient en
butée contre la surface 13 de la culasse 2.The
Le cylindre 5 contient à l'avant un amortisseur 18, solidaire du cylindre 5,
contre lequel la tête du piston 6, propulsée vers l'avant lors d'un tir, est
destinée à venir buter.The
Un magasin 19 d'alimentation en tampons communique avec le guide-tampon
8, pour le chargement de tampon dans le guide-tampon 8.A
Deux bras 20, 21 d'entraínement vers l'arrière du manchon 4, symétriques
l'un de l'autre par rapport à l'axe 9, s'étendent sensiblement le long et à
l'extérieur du porte guide-tampon 7 et du cylindre 5 et sont solidarisés, ici
par vissage, du manchon 4, à leurs extrémités postérieures.Two
Les deux bras d'entraínement 20, 21 sont reliés l'un à l'autre par une partie
de liaison 22, à leurs extrémités antérieures. Un doigt d'appui 23, pourvu
d'une surface d'appui 29 orientée vers l'avant, est fixé, ici par vissage à l'aide
des vis 41, à la partie de liaison 22. Le doigt 23 s'étend à travers une lumière
27, ménagée dans le porte guide-tampon 7, et est reçu dans une gorge
externe 25 ménagée dans le guide-tampon 8 et parallèle à l'axe 9. La paroi
antérieure de la gorge 25, orientée vers l'arrière, fait office de surface de
poussée 30. La surface de poussée 30 et la surface d'appui 29 sont destinées
à se solidariser en translation vers l'arrière, par appui de l'une contre l'autre,
lors de la mise en appui du guide-tampon 8 contre un support, afin de fermer
la chambre de combustion 3, et pour se désolidariser au recul de l'appareil
en réaction au tir, afin d'assurer le maintien en appui du guide-tampon 8
contre le support, comme cela sera explicité plus précisément dans la
description du fonctionnement de l'appareil. La partie de liaison 22 ménage
une lumière 48 de passage des vis 41 s'étendant parallèlement à l'axe 9 et
permettant de décaler axialement le doigt 23 et l'ensemble des deux bras 20,
21 et de la partie 22, suivant la pénétration souhaitée du tampon dans le
support.The two drive
Le guide-tampon 8 fait fonction de palpeur de mise en appui et de fermeture
de la chambre de combustion 3, par l'intermédiaire des bras d'entraínement
20, 21.The
Chacun des bras d'entraínement 20, 21 comprend, au voisinage de son
extrémité arrière, un doigt de poussée 24, 26 replié vers le cylindre 5,
sensiblement à angle droit. Les deux doigts de poussée 24, 26 sont montés
coulissants sur le cylindre 5 respectivement contre l'action de deux ressorts
35, 36 de rappel vers l'avant qui sont en appui, à l'arrière, contre deux
surfaces d'appui 37, 38 du cylindre 5 et, à l'avant, contre les doigts 24, 26.
Les ressorts 35, 36 sont destinés à rappeler vers l'avant, en position de
repos, les bras d'entraínement 20, 21 et, par conséquent le manchon 4, lors
de la sortie d'appui de l'appareil, comme cela sera explicité dans la
description du fonctionnement de l'appareil.Each of the
Le cylindre 5 comprend en outre deux butées antérieures externes 39, 40,
pour les doigts 24, 26, symétriques l'une de l'autre par rapport à l'axe 9,
destinées à limiter le coulissement vers l'avant des bras 20, 21 par rapport au
cylindre 5.The
Après la description structurelle de l'appareil de fixation à piston propulsé, son fonctionnement va maintenant être décrit. After the structural description of the propelled piston fixing device, its operation will now be described.
En position de repos de l'appareil (figures 1 et 2), les bras d'entraínement 20,
21, le manchon 4 et le guide-tampon 8, par l'intermédiaire des surfaces 29 et
30 en appui l'une contre l'autre, sont rappelés vers l'avant par les ressorts 35,
36 et la chambre de combustion 3 est ouverte à l'arrière.In the rest position of the device (Figures 1 and 2), the drive
Lors de la mise en appui de l'appareil contre le support 100, le guide-tampon
8 est entraíné vers l'arrière par rapport au porte guide-tampon 7, au cylindre
5 et au boítier 1. La surface de poussée 30 du guide-tampon 8 et la surface
d'appui 29 solidaire des bras d'entraínement 20, 21, en appui l'une contre
l'autre, sont solidaires en translation vers l'arrière. Par conséquent, sous
l'action du déplacement du guide-tampon 8, les bras d'entraínement 20, 21
entraínent vers l'arrière le manchon 4, jusqu'à ce que le bord arrière 11 du
col 10 du manchon 4 vienne buter contre la surface 13 de la culasse 2. Dans
cette position du manchon 4, la chambre de combustion 3 est fermée à
l'arrière par la culasse 2 et, à l'avant, par la tête du piston 6 et le cylindre 5
(figures 3 et 4).When the device presses against the
On soulignera ici que l'entraínement vers l'arrière du manchon 4 par le guide-tampon
8 s'effectue par simple poussée de celui-là par celui-ci.It will be emphasized here that the rearward drive of the
Le recul des bras d'entraínement 20, 21 s'effectue contre l'action des ressorts
de rappel 35, 36 qui se compriment.The recoil of the
Durant le recul du manchon 4, du gaz est injecté dans la chambre de
combustion 3 depuis la cartouche de gaz comprimé. Lorsque le col 10 du
manchon 4 vient buter contre la culasse 2, à l'arrière, son bord 11 vient
actionner l'interrupteur 17 qui met en marche le ventilateur 16 afin de
brasser le contenu de la chambre 3.During the retraction of the
Au tir, le dispositif de mise à feu fait exploser le gaz comprimé contenu dans
la chambre de combustion 3, ce qui crée une pression à l'intérieur de la
chambre 3 sous l'action de laquelle le piston 6 est propulsé vers l'avant. Un
tampon ayant été mis en place dans le guide-tampon 8, le piston 6 vient
frapper le tampon qui est propulsé vers l'avant et se fixe dans le support 100.
En fin de course, la tête du piston 6 vient buter contre l'amortisseur 18.When fired, the firing device explodes the compressed gas contained in
Le tir provoque en réaction une force de recul qui tend à faire reculer
l'appareil. L'ensemble culasse-boítier-cylindre-porte guide-tampon-manchon-bras
d'entraínement 2, 1, 5, 7, 4, 20, 21 recule. En revanche, lors de ce recul,
la surface d'appui 29 du doigt 2 solidaire des bras 20, 21 se désolidarise de
la surface de poussée 30 du guide-tampon 8 de sorte que le guide-tampon 8
ne recule pas et le doigt d'appui 23 coulisse vers l'arrière dans la gorge de
réception 25. Grâce à cela, le guide-tampon 8 est maintenu en appui contre
le support 100, en dépit du recul de l'ensemble culasse-boítier-cylindre-porte
guide-tampon-manchon-bras d'entraínement 2, 1, 5, 7, 4, 20, 21.The shot causes in reaction a recoil force which tends to recoil
the device. The cylinder head-housing-cylinder-guide-buffer-sleeve-
En fin de course du piston 6, les gaz de combustion s'échappent du cylindre
5 et de la chambre de combustion 3, de façon connue, par une valve
d'échappement. Le piston 6 est entraíné vers l'arrière par dépression et
revient en position de repos.At the end of the
A la sortie d'appui de l'appareil, les ressorts de rappel 35, 36 se relâchent et
entraínent vers l'avant les bras d'entraínement 20, 21, le guide-tampon 8 et le
manchon 4 qui reviennent en position de repos.At the bearing outlet of the device, the return springs 35, 36 relax and
drive forward the
La chambre de combustion 3 s'ouvre ainsi à nouveau à l'arrière.The
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9800840 | 1998-01-27 | ||
FR9800840A FR2774017B1 (en) | 1998-01-27 | 1998-01-27 | COMPRESSED GAS-PISTON FIXING APPARATUS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0931626A1 true EP0931626A1 (en) | 1999-07-28 |
EP0931626B1 EP0931626B1 (en) | 2003-04-16 |
Family
ID=9522199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99400187A Expired - Lifetime EP0931626B1 (en) | 1998-01-27 | 1999-01-27 | Fastening tool with a piston driven by compressed gas |
Country Status (10)
Country | Link |
---|---|
US (1) | US6138887A (en) |
EP (1) | EP0931626B1 (en) |
AT (1) | ATE237434T1 (en) |
AU (1) | AU709218B1 (en) |
CA (1) | CA2260357C (en) |
DE (1) | DE69906833T2 (en) |
ES (1) | ES2196733T3 (en) |
FR (1) | FR2774017B1 (en) |
NO (1) | NO311752B1 (en) |
NZ (1) | NZ333932A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1642684A1 (en) * | 2003-07-04 | 2006-04-05 | Max Co., Ltd. | Powered nailing machine |
CN105500290A (en) * | 2016-02-14 | 2016-04-20 | 重庆双伟机械有限公司 | Gas combustion type impact tool |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10228036B4 (en) * | 2002-06-24 | 2014-05-28 | Hilti Aktiengesellschaft | Setting device with magazine for fastening elements that can be driven by expanding gases |
US6695192B1 (en) | 2002-09-30 | 2004-02-24 | Illinois Tool Works Inc. | Adjustable depth control for fastener driving tool |
FR2855444B1 (en) * | 2003-06-02 | 2005-08-05 | Prospection & Inventions | COMBUSTION CHAMBER APPARATUS WITH GAS OPERATION |
FR2858261B1 (en) * | 2003-07-29 | 2005-09-09 | Prospection & Inventions | GAS OPERATING APPARATUS FOR DRIVING A PISTON ELEMENT |
JP2005212060A (en) * | 2004-01-30 | 2005-08-11 | Hitachi Koki Co Ltd | Combustion type power tool |
US6964362B2 (en) * | 2004-02-06 | 2005-11-15 | Illinois Tool Works Inc. | Shock-absorbing system for fastener driving tools |
US7201301B2 (en) * | 2004-02-09 | 2007-04-10 | Illinois Tool Works Inc. | Exhaust system for combustion-powered fastener-driving tool |
US7971768B2 (en) * | 2004-05-04 | 2011-07-05 | Illinois Tool Works Inc. | Guidance system for fasteners |
US7097083B2 (en) * | 2004-09-01 | 2006-08-29 | Illinois Tool Works Inc. | Cage and offset upper probe assembly for fastener-driving tool |
US20060091177A1 (en) * | 2004-10-29 | 2006-05-04 | Cannaliato Michael F | Operational lock and depth adjustment for fastening tool |
US20060091176A1 (en) * | 2004-10-29 | 2006-05-04 | Cannaliato Michael F | Cordless fastening tool nosepiece with integrated contact trip and magazine feed |
US20070108249A1 (en) * | 2005-11-17 | 2007-05-17 | Moeller Larry M | Motor control for combustion nailer based on operating mode |
DE102006000025A1 (en) * | 2006-01-25 | 2007-07-26 | Hilti Ag | setting tool |
US8550324B2 (en) * | 2006-05-23 | 2013-10-08 | Black & Decker Inc. | Depth adjustment for fastening tool |
US7427008B2 (en) * | 2006-10-25 | 2008-09-23 | Black & Decker Inc. | Depth adjusting device for a power tool |
US8152038B2 (en) * | 2007-03-16 | 2012-04-10 | Illinois Tool Works Inc. | Nose assembly for a fastener driving tool |
US8220686B2 (en) * | 2007-07-17 | 2012-07-17 | Illinois Tool Works Inc. | Actuator pin guide for a fastener driving tool |
TWI361128B (en) * | 2009-03-18 | 2012-04-01 | Basso Ind Corp | A demountable safety device of a power tool |
CN201389838Y (en) * | 2009-03-27 | 2010-01-27 | 张汉勤 | Nail-shooting launching device |
FR2953752B1 (en) * | 2009-12-11 | 2012-01-20 | Prospection & Inventions | INTERNAL COMBUSTION ENGINE FIXING TOOL WITH SINGLE CHAMBER OPENING AND CLOSING |
CN202318236U (en) * | 2011-11-11 | 2012-07-11 | 张桂琼 | Multifunctional nail gun |
EP3034238A1 (en) * | 2014-12-19 | 2016-06-22 | HILTI Aktiengesellschaft | Driving device with adjustable combustion chamber |
CN106216172B (en) * | 2016-08-31 | 2019-01-15 | 佛山市南海新达高梵实业有限公司 | A kind of automatically upper dowel equipment |
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US4405072A (en) * | 1980-05-28 | 1983-09-20 | Hilti Aktiengesellschaft | Setting device powered by an explosive gas mixture |
US5197646A (en) * | 1992-03-09 | 1993-03-30 | Illinois Tool Works Inc. | Combustion-powered tool assembly |
US5263842A (en) * | 1992-03-30 | 1993-11-23 | Stanley-Bostitch, Inc. | Nail driver with improved nosepiece assembly |
EP0727285A1 (en) * | 1995-02-15 | 1996-08-21 | Societe De Prospection Et D'inventions Techniques Spit | Fastening tool with a piston driven by compressed gas |
EP0788863A1 (en) * | 1996-02-09 | 1997-08-13 | Illinois Tool Works Inc. | Combustion powered fastener driving tool |
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US4566619A (en) * | 1980-07-24 | 1986-01-28 | The Kiesel Co. | Pneumatic fastener-driving tool and method |
US5083694A (en) * | 1991-06-11 | 1992-01-28 | Stanley-Bostitch, Inc. | Fastener driving device with sequential actuation trigger assembly |
US5261587A (en) * | 1993-01-04 | 1993-11-16 | Illinois Tool Works Inc. | Fastener-driving tool with improved, adjustable, tool-actuating structures |
US5263626A (en) * | 1992-12-29 | 1993-11-23 | Illinois Tool Works Inc. | Fastener-driving tool with actuating structure biased by dual biasing means |
JP3239579B2 (en) * | 1993-02-05 | 2001-12-17 | 日立工機株式会社 | Nailing machine |
US5320268A (en) * | 1993-04-13 | 1994-06-14 | Illinois Tool Works Inc. | Powered dimple-forming and fastener-driving tool |
JPH08290370A (en) * | 1995-04-19 | 1996-11-05 | Japan Power Fastening Co Ltd | Gas combustion-type portable driving tool |
-
1998
- 1998-01-27 FR FR9800840A patent/FR2774017B1/en not_active Expired - Fee Related
-
1999
- 1999-01-14 AU AU11313/99A patent/AU709218B1/en not_active Expired
- 1999-01-26 NO NO19990352A patent/NO311752B1/en unknown
- 1999-01-26 CA CA002260357A patent/CA2260357C/en not_active Expired - Lifetime
- 1999-01-27 ES ES99400187T patent/ES2196733T3/en not_active Expired - Lifetime
- 1999-01-27 NZ NZ333932A patent/NZ333932A/en not_active IP Right Cessation
- 1999-01-27 US US09/237,836 patent/US6138887A/en not_active Expired - Lifetime
- 1999-01-27 EP EP99400187A patent/EP0931626B1/en not_active Expired - Lifetime
- 1999-01-27 DE DE69906833T patent/DE69906833T2/en not_active Expired - Lifetime
- 1999-01-27 AT AT99400187T patent/ATE237434T1/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4405072A (en) * | 1980-05-28 | 1983-09-20 | Hilti Aktiengesellschaft | Setting device powered by an explosive gas mixture |
US5197646A (en) * | 1992-03-09 | 1993-03-30 | Illinois Tool Works Inc. | Combustion-powered tool assembly |
US5263842A (en) * | 1992-03-30 | 1993-11-23 | Stanley-Bostitch, Inc. | Nail driver with improved nosepiece assembly |
EP0727285A1 (en) * | 1995-02-15 | 1996-08-21 | Societe De Prospection Et D'inventions Techniques Spit | Fastening tool with a piston driven by compressed gas |
EP0788863A1 (en) * | 1996-02-09 | 1997-08-13 | Illinois Tool Works Inc. | Combustion powered fastener driving tool |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1642684A1 (en) * | 2003-07-04 | 2006-04-05 | Max Co., Ltd. | Powered nailing machine |
EP1642684A4 (en) * | 2003-07-04 | 2008-09-24 | Max Co Ltd | Powered nailing machine |
CN105500290A (en) * | 2016-02-14 | 2016-04-20 | 重庆双伟机械有限公司 | Gas combustion type impact tool |
Also Published As
Publication number | Publication date |
---|---|
ES2196733T3 (en) | 2003-12-16 |
NO990352L (en) | 1999-07-28 |
CA2260357A1 (en) | 1999-07-27 |
DE69906833D1 (en) | 2003-05-22 |
CA2260357C (en) | 2002-07-09 |
AU709218B1 (en) | 1999-08-26 |
US6138887A (en) | 2000-10-31 |
NO990352D0 (en) | 1999-01-26 |
FR2774017B1 (en) | 2000-03-17 |
ATE237434T1 (en) | 2003-05-15 |
NZ333932A (en) | 2000-07-28 |
NO311752B1 (en) | 2002-01-21 |
FR2774017A1 (en) | 1999-07-30 |
DE69906833T2 (en) | 2004-01-22 |
EP0931626B1 (en) | 2003-04-16 |
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