FR2481180A1 - CARTRIDGE SEALING GUN - Google Patents

Abstract

THIS GUN IS DISTINGUISHED BY THE FOLLOWING CHARACTERISTICS: A. THE CANNON 3 PLACED IN CASE 1 CAN BE MOVED LONGITUDINALLY IN THE CASE ONLY; B. A CARTRIDGE EJECTOR IS PROVIDED THAT IMPOSES THE TRANSFORMATION OF THE AXIAL DISPLACEMENT OF THE CANNON 3 INTO A MOVEMENT DIRECTED TOWARDS THE MOUTH OF THE CARTRIDGE HOUSING 7; C. THE CARTRIDGE EJECTOR IS DESIGNED SO THAT THE EJECTION TAKES PLACE EXCLUSIVELY WHEN THE CANNON 3 IS MOVED FROM THE FIRE POSITION TOWARDS THE MOUTH OF THE CANNON, BETWEEN THE FIRE POSITION AND THE POSITION LOADING.

Description

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  The present invention relates to a nail gun for the installation of dowels, etc. controlled by stored cartridges, having a straight-running cylinder head and in which the cartridge housing, disposed in the barrel with an inclination along the longitudinal axis 11 thereof, can be brought into the firing position and into the position loading by axial displacement of the barrel,

  on the other hand an ejector of oartouche moved by de-

placement of the barrel.

  In a pistol of this kind described in the DE-G utility model. 69 12075, the barrel, which can move axially in the housing, can be manually rotated about its longitudinal axis, the cartoucho eductor provided in this device can be moved across and, when the barrel occupies a setting posltion angulaitre determined, meets Moon cam and ejects through a window laterally housed in the

  crush the socket in the housing

touohe.

  A disadvantage of this known gun is the relatively inconvenient maneuvers necessary to unload and recharge it. In addition, it runs the risk of mishandling. For example if he forgets to rotate the barrel about its longitudinal axis before reloading the gun, the cartridge housing remains occupied so that it can not proceed to its rechargemente The invention was then intended to create for a sealing gun of the type described in the preamble of the possibilities of simplifying the loading while excluding

  any maneuver fans pocketing the reloading.

  To achieve this goal, the invention has conceived the following characteristics: a) the barrel disposed in the casing can be moved exclusively longitudinally therein; b) a cartridge ejector is provided which -2 - imposes the transformation of the axial displacement of the barrel into a movement directed towards the mouth of the cartridge housing, and c) the cartridge ejector is designed so that the ejection takes place exclusively when the barrel is moved from the setting position fire towards the mouth of the barrel, between the firing position and

the loading position.

  Thanks to these provisions, it is enough to unload

  or reload the gun, move the long barrel

  dinalement. When it is moved in the direction of its mouth, it empties the cartridge housing located in the barrel, without any other manual intervention, o resulting in simplification maneuver sought. in addition, the false maneuvers that were possible with

  known pistols are excluded with certainty.

  For this purpose, the invention provides in an advantageous embodiment of the ejotor mechanism, on the one hand that the positioner member is constituted by an affected ratchet H the cartridge ejector, fixed to this ejector and cooperating with an integral stop of the housing, this pawl being mounted limited tilting about an axis disposed across the longitudinal axis of the barrel, and secondly that the pawl is designed such that, by axial displacement of the barrel towards the mouth of this last ratchet meets the said stop,

  temporarily tilts by moving the ejector from oar-

  touch in the direction of the ejection then, when the

  ejection position is reached, returns to its position

  initial, on the other hand, that the ejected mechanism

  teour is designed in such a way that when the barrel

  turns from the loading position to the set position

  this mechanism is locked.

  In a preferred embodiment variant, robust and

  at the same time as a safe operation and a manufacturer

  a technically favorable cation, the pawl has an elongated shape and, in one of the end-of-travel positions

3- 3- 2 48 1 180

  tilted and pushed in the longitudinal direction by the return force of a spring element

  against the inner side of the housing substantially parallel

  parallel to the longitudinal direction of the latter, this pawl having, in its end facing the mouth of the barrel, a catch which temporarily engages the abutment integral with the housing

  when the barrel is moved towards his mouth.

  For the ratchet, to move the ltjector in

  direction of ejection, support only temporary

  In contrast to the abutment integral with the casing, the detent can have a ramp on which the abutment can act and which when the ejection position is

  reached, returns the ratchet to its original position.

  Instead or, in particular, in addition to this, a spring element may be provided which after the ejection position is reached returns the oliquet.

in its initial position.

  In this provision a form of execution pre-

  In the apparatus according to the invention, the spring effect element comprises a prestressing compressive bearing supported on one side on the barrel and the other on the pawl, the latter comprising

  this two inclined bearing surfaces, directed differently

  between each other and arranged in such a way that one of them, under the action of the compression spring,

  exerts on the ratchet a torque that rotates it

  longitudinally against the inside wall of the car-

  ter, while the other support surfaoo transforms the force exerted by the spring into a rotational torque that rotates the opposite ratchet leo which is found

in the ejection position.

  This provision has the advantage that it is sufficient for a single spring effect to apply the

  ratchet against the inside of the housing and for

  to see with certainty in its initial position after

  that the ejection position has been reached.

  A form of execution particularly favorable from the point of view of its manufacture of the integral stop

2481 18O

  -4 - the housing and cooperating with the oliquet is carried out by providing that this stop is constituted by a longitudinal slot in the housing and whose front transverse wall, that is to say the less distant from

  the mouth of the barrel, forms the stop in question.

  An example of a gun designed according to

  the invention is described in detail below and in

  referring to the annexed drawing; 1 is a longitudinal sectional view of a sealing pistol according to the invention for the installation of studs, dowels or other fastening means. FIG. 2 is a view of the pistol according to FIG. 1, but in the ejection position; FIG. 3 is an enlarged view, in longitudinal section, broken away from certain details of the pistol according to FIGS. 1 and 2, here Just before the ejection position is reached, FIG. 4 shows the same details during the ejection of a cartridge case, FIG. 5 is a sectional view along the VV line drawn. in fig. 3, and - Figure 6 is a view similar to FIG. 5 but

  while the barrel returns to the position of

  mage. The nail gun for the installation of studs, dowels, etc. essentially comprises a casing 1 with

  a stick 2, a barrel 3 which can slide longitudinally

  in the housing 1, a cylinder head with

  line spring-loaded and equipped with a 5S percussion ignition system and

6 refillable cartridges.

  In the barrel 3 is disposed a striker piston 9 m & by the gases released by a cartridge 8 contained in

  cartridge housing 7. iprAs all picture of the car-

  keys this piston striker 9 strikes on a fastening means such as an ankle (not shown) engaged

  in the barrel by the mouth of it.

  To seal ulnoe cartridge it is necessary that the barrel 3

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  and the cylinder head 4 are, from the illustrated position

  in fig. 1I moved relative to the casing 1 against the force exerted on eu. by a spring. To do this, the mouth of the barrel is applied against the piece in which the ankle must be inserted and pressed against this piece until the trigger 11 actuable by a detent 10 is in front of the ignition system. by peroussion 5 arranged in the

culasso 4.

  The cartridge housing 7 is inclined on the axis of the barrel and opens, via a channel 12 *

in l1 ne of it.

  The longitudinal axis of the cartridge housing 7 and

  that of Canon 3 make an angle of 60 between them.

  closure of this dwelling is at right angles to

  to the longitudinal axis of it. In front of this em-

  parallel to it is disposed a surface 13 d: a part of the yoke which. when the barrel 3 and the cylinder head 4 will move to occupy the ready position ignition, pushes the caxrtouche 8 in the housing 7 so to show him his position

  correct and keep it in it.

  In the barrel 3 is also mounted at o8t6 of the box-

  7. In a canoal 14 parallel to the longitudinal axis of this housing, a pusher-shaped cartridge can be moved only

  in the longitudinal direction, on a limited distance

  tde. This engine has an extra ergot

  16 which extends into the housing 7 (Fig. 5)

  and can grab from below the bead of a car-

key 8 (f: ig.4).

  The cartridge jotter 15 has a long slot

  17 mm dams slaquelle is mounted to tilt

  of an axis 19 retained in this ejector, at the same time

  mite of the latter opposed to the lug 16, an elongate ratchet 18 guided in a longitudinal slot

adapted to this oliquet.

  In the slot 17 of the ejector 15 is in addition

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  arranged # with prestressing a helical compression spring 20, one end of which is supported on a

  pin 21 which is secured to the barrel and also passes through

Slot 17.

  The other end of the spring 20 is supported on the

  ratchet 18 via a ball 22.

  quet has two bearing surfaces 23,24 adjacent the ball 22 and each exerting on the pawl, under the

  thrust of the spring 20, a torque of rotation.

  At the free end of the pawl 18, that is to say at its end directed towards the muzzle of the barrel, is provided a catch 25 which cooperates with an abutment

  secured to the casing for ejecting a cartridge 8 from the housing

  7. This stop is in the form of a longitudinal slot 26 whose face 27 the most

  near the mouth of the barrel forms a support surface.

  To eject a cartridge case, it is necessary to extend the barrel 3 of the casing 1. During this movement, the pawl 18, on which as shown in FIGS. 3 and

  6 the compression spring 20 exerts # through

and

  ball 22 of the support surface 23 of the cli

  quet, a torque of rotation tending to turn

  dextrorsum, crosses the slot 26 and immediately engages in it partially and, the barrel 3 continuing its movement tending to take it out of the casing 1, is supported by the detent 25 against the bearing face 27 then, as seen in fig. 2

  dextrorsum flip-flop, so that at the same time

  15 is displaced in the ejection direction, so that its lug 16 expels the cartridge sleeve from the housing 7 and ejects it through a window

  28 formed in the lower wall of the casing 1.

  When this position is reached the catch 18 resto snapped into the loading position, this position being maintained by the spring 20 which, as seen in FIG. 4, bears against the surface 24 of the pawl 18 via the ball 22 in

  exerting on this ratchet a torque of rotation

2'48! 118

-7

  sumt so that the ratchet and with him also lt'Jeo-

  As the load position is reached, another cartridge 8 from the magazine 6 engages, as described in the utility model. DE-Gm 69

  12 0759 in the cartridge housing 7.

  Since during the return of the barrel 3 from its loading position to its ignition position the detent 25 can not rest against the bearing face 27 of the slot 26, the injector 15 can not eject

  the cartridge in slot 7.

  All the new features described above

  above and / or represented in the drawing must be stro, sepa-

  in combination or in combination, considered essential

to achieve the invention.

Claims (7)

  1.Sealing gun for the installation of studs, che-illess etc. controlled by stored cartridges, having a breech with rectilinear displacement and in which the cartridge housing, disposed in the barrel   with an inclination on the longitudinal axis of that   ci, can be brought into the ignition position and in the loading position by axial displacement of the barrel, on the other hand a cartridge ejector actuated by movement of the barrel, this apparatus being remarkable for the combination of the following characteristics: a the barrel (3) disposed in the casing (1) can be displaced exclusively longitudinally therein; b) there is provided a cartridge ejector (15) which imposes the transformation of the axial displacement of the barrel (3) into a movement; directed to the mouth of the cartridge housing (7), and c) the cartridge ejector (15) is designed to   such that the ejection takes place exclusively   during the movement of the barrel (3) from the firing position towards the barrel muzzle, between the setting position   fire and the loading position.   2. Gun according to claim 1, remarkable   on the one hand that the positioner member is constituted   killed by a pawl (18) assigned to the card ejector   key (15), fixed to this ejocteur and cooperating with an abutment integral with the housing, this pawl being mounted to   limited tilting around an axis (19) arranged in   towards the longitudinal axis of the carnon (3), on the other hand in that the oliquet (18) is designed so that, by axial displacement of the barrel (3) in the direction of the   mouth of the latter, this ratchet meets the said bu-   Tee, temporarily tilts by moving the cartridge ejector (15) in the direction of the ejection then, when the detecting position is reached, returns to its initial position, and finally finally that   the ejector mechanism is designed in such a way that   that the barrel (3) returns from the loading position   at the firing position this mechanism is locked.   3. Gun according to claim 2, characterized in that the pawl (18) has an elongated shape and, in   one of the tilted end positions is   s6 in the longitudinal direction by the restoring force of a spring element against the inner side of the casing (1) substantially parallel to the longitudinal direction of the latter, this pawl (18) having, in its end turned towards the mouth of the canonf a   notch (25) in which comes temporarily   to secure the stop integral with the casing when the barrel (3)   is moved towards his mouth.   4. Pistol solon resio 3, remarkable in that the notch (25) shows a ramp on   which can act the said stop and which, when the posi-   injection is reached, returns the ratchet (18) in its initial position.   5. Pistol according to any one of the claims   cations, remarkable in that it comprises a spring element which, after the ejection position is reached, returns the pawl (18) in its initial position.   6. Pistol according to any claimant back   previous statements, remarkable in that it   as a spring element, a compressor spring   sion (20) under prestressing bearing one side on the barrel, the other on the pawl (18), the latter   comprising two bearing surfaces (23924) inclined   born, directed differently towards each other and   in such a way that one of them (23), under the action of the compression spring (20), exerts on the pawl (18) a rotational torque which pushes it longitudinally against the inner wall of the housing, while that the other bearing surface (24) transforms the force exerted by the - 10 -   spring in a couple of rotation that turns in   opposite direction the pawl (18) which is in the posi- ejection.   7. Pistol according to any one of the   previous cations, remarkable in that the integral hump of the housing (1) is constituted by a longitudinal slot (26) formed in the housing (1) and whose front transverse wall (27) forms the abutment in question.