EP2402120A1 - guide for a nail-setting device and device including the guide - Google Patents

guide for a nail-setting device and device including the guide Download PDF

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Publication number
EP2402120A1
EP2402120A1 EP11167399A EP11167399A EP2402120A1 EP 2402120 A1 EP2402120 A1 EP 2402120A1 EP 11167399 A EP11167399 A EP 11167399A EP 11167399 A EP11167399 A EP 11167399A EP 2402120 A1 EP2402120 A1 EP 2402120A1
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EP
European Patent Office
Prior art keywords
guide
nail
buffer guide
bore
skirt
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
Application number
EP11167399A
Other languages
German (de)
French (fr)
Other versions
EP2402120B1 (en
Inventor
Patrick Herelier
Guy Jaillet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe de Prospection et dInventions Techniques SPIT SAS
Original Assignee
Societe de Prospection et dInventions Techniques SPIT SAS
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Publication of EP2402120A1 publication Critical patent/EP2402120A1/en
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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
    • B25C1/188—Arrangements at the forward end of the barrel, e.g. splinter guards, spall minimisers, safety arrangements, silencers, bolt retainers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C7/00—Accessories for nailing or stapling tools, e.g. supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C3/00—Portable devices for holding and guiding nails; Nail dispensers
    • B25C3/006—Portable devices for holding and guiding nails; Nail dispensers only for holding and guiding

Definitions

  • the field of the invention is that of fasteners for nails in a support material. These are devices that drive the nails through a drive piston itself powered by electric motor, pneumatic or thermal.
  • a buffer guide - actually a nail guide - that must be pressed against the support material to be able to operate. This is so-called support security. But, this buffer guide also has the function of guiding the nails to the support material.
  • the nails are guided in two axially separated zones, the first, at the level of their head, of the same diameter as the bore (of the barrel) and the guide -tampon, the second, at a guiding skirt slipped around their rod and bearing against the wall of the bore.
  • the invention of the present application aims to solve this problem globally overall without giving up the solution of the first.
  • the invention relates to a nailing fixture buffer guide, having a nail receiving bore having a head and a rod on which a skirt is slid, the bore having a passage section determined for that the head and the skirt of the nail provide for its guidance, a recess being formed in the front part of the buffer guide for the ejection and expansion of the guide skirt, buffer guide characterized in that the recess has a narrowing of the same passage section as the receiving bore, whereby the nails are guided in the bore of the buffer guide until they come out.
  • the narrowing is advantageously formed by at least two radial bulges, diametrically opposed when there are only two, at 120 ° to each other when there are three.
  • the invention also relates to a nail attachment apparatus having a buffer guide as claimed above.
  • a nailing apparatus here with internal combustion engine 2, of the prior art, comprises a driving piston 3, with a head 4 can be moved in a cylinder 5 under the action of the firing of the fuel in the chamber 6 of the apparatus.
  • the piston rod 7, at the end of the shot, is engaged in the buffer guide 8 after propelling the nail 9 in the support material 10 to receive it.
  • the nail 9 comprises a head 11 and a rod 12.
  • the head 11 is of a diameter substantially equal to that of the bore 13 of the buffer guide 8.
  • a guide skirt 14 is mounted on the rod 12 of the nail. During the movement of the nail in the buffer guide 8, the skirt bears against the wall of the bore 13 to guide the nail.
  • a frustoconical recess 15 In the anterior portion 30 of the buffer guide 8 is provided a frustoconical recess 15 for the ejection and expansion of the skirt 14. This anterior portion is flared forwards.
  • the nail 9 is not yet fully embedded in the material 10.
  • the guide skirt 14 is out of the portion of the buffer guide 8 of section corresponding to that of the nail head 11.
  • the skirt 14 could s' expandre before the head 11 of the nail crushes it against the support material and can therefore be ejected when the operator pulls the support device against the material 10.
  • the nail head has just left the bore 13 of determined and constant section and, between this position and the total depression of the nail, until the head 11 comes against the surface 16 of the material 10, the nail is no longer guided.
  • the recess 15 really has a narrowing 40 of the same passage section as the bore 13 for receiving the nail and in fact comprises several radial bulges.
  • the narrowing 40 ' is formed by three radial bulges 20-22, angularly spaced two by two by 120 °.
  • the narrowing 40 is formed by only two radial bulges 23, 24 diametrically opposed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The plug guide (8) has a bore (13) for receiving a nail (9) comprising a head (11) and a shaft (12) onto which a skirt (14) is slid. A recess (15) is provided in the front part (30) of the plug guide for ejecting and expanding the guiding skirt. The recess comprises a radial bulge projecting inside, for extending the wall of the bore of the plug guide.

Description

Le domaine de l'invention est celui des appareils de fixation de clous dans un matériau support. Il s'agit d'appareils qui permettent d'entraîner les clous par l'intermédiaire d'un piston d'entraînement lui-même propulsé par moteur électrique, pneumatique ou thermique.The field of the invention is that of fasteners for nails in a support material. These are devices that drive the nails through a drive piston itself powered by electric motor, pneumatic or thermal.

Aujourd'hui, les appareils en question sont le plus souvent des appareils à moteur à combustion interne, à gaz combustible.Today, the devices in question are most often appliances with internal combustion engine, fuel gas.

Ces appareils possèdent, à l'avant, ce qu'on appelle un guide-tampon - en fait un guide-clou - qu'il faut mettre en appui contre le matériau support pour pouvoir les actionner. Il s'agit de la sécurité dite d'appui. Mais, ce guide-tampon présente donc également la fonction de guider les clous jusqu'au matériau support.These devices have, at the front, what is called a buffer guide - actually a nail guide - that must be pressed against the support material to be able to operate. This is so-called support security. But, this buffer guide also has the function of guiding the nails to the support material.

Pour être bien guidés dans le canon des appareils ainsi que dans le guide-tampon, les clous sont guidés en deux zones axialement séparées, la première, au niveau de leur tête, de même diamètre que l'alésage (du canon) et du guide-tampon, la deuxième, au niveau d'une jupe de guidage glissée autour de leur tige et prenant appui contre la paroi de l'alésage.To be well guided in the barrel of the apparatuses as well as in the guide-buffer, the nails are guided in two axially separated zones, the first, at the level of their head, of the same diameter as the bore (of the barrel) and the guide -tampon, the second, at a guiding skirt slipped around their rod and bearing against the wall of the bore.

Pour mieux assurer l'éjection et l'expansion de la jupe des clous au sortir des appareils, on a proposé d'évider l'extrémité avant des guide-tampon.To better ensure the ejection and expansion of the skirt nails out of the devices, it has been proposed to hollow out the front end of the buffer guide.

Mais pour résoudre un tel problème, on en a créé un autre. Avec une telle structure évidée, la tête des clous n'est plus guidée sur la toute dernière portion de leur course juste avant le matériau support, lorsqu'elle débouche dans l'évidement du guide-tampon. Cela est préjudiciable à la garantie de la fixation.But to solve such a problem, we created another one. With such a recessed structure, the head of the nails is no longer guided on the very last portion of their stroke just before the support material, when it opens into the recess of the buffer guide. This is detrimental to the guarantee of fixation.

L'invention de la présente demande vise à résoudre globalement ce dernier problème sans pour autant renoncer à la solution du premier.The invention of the present application aims to solve this problem globally overall without giving up the solution of the first.

Ainsi, l'invention concerne un guide-tampon d'appareil de fixation de clous, comportant un alésage de réception d'un clou comportant une tête et une tige sur laquelle est glissée une jupe, l'alésage ayant une section de passage déterminée pour que la tête et la jupe du clou y assurent son guidage, un évidement étant ménagé dans la partie antérieure du guide-tampon pour l'éjection et l'expansion de la jupe de guidage, guide-tampon caractérisé par le fait que l'évidement comporte un rétrécissement de même section de passage que l'alésage de réception, grâce à quoi les clous restent guidés dans l'alésage du guide-tampon jusqu'à ce qu'ils en sortent.Thus, the invention relates to a nailing fixture buffer guide, having a nail receiving bore having a head and a rod on which a skirt is slid, the bore having a passage section determined for that the head and the skirt of the nail provide for its guidance, a recess being formed in the front part of the buffer guide for the ejection and expansion of the guide skirt, buffer guide characterized in that the recess has a narrowing of the same passage section as the receiving bore, whereby the nails are guided in the bore of the buffer guide until they come out.

Le rétrécissement est avantageusement formé par au moins deux renflements radiaux, diamétralement opposés quand il n'y en a que deux, à 120° les uns des autres quand il y en a trois.The narrowing is advantageously formed by at least two radial bulges, diametrically opposed when there are only two, at 120 ° to each other when there are three.

L'invention concerne aussi un appareil de fixation de clous comportant un guide-tampon, tel que revendiqué ci-dessus.The invention also relates to a nail attachment apparatus having a buffer guide as claimed above.

L'invention sera mieux comprise à l'aide de la description suivante du guide-tampon et de l'appareil de fixation de l'invention, en référence au dessin en annexe, sur lequel

  • la figure 1 représente une vue en coupe axiale d'un appareil de clouage équipé d'un guide-tampon de l'art antérieur, en cours de tir, le clou étant presque en fin de course ;
  • la figure 2 représente une vue à plus grande échelle de la partie antérieure du guide-tampon de l'appareil de la figure 1 ;
  • la figure 3 est une vue en coupe à très grande échelle de la partie antérieure d'un guide-tampon de l'invention ;
  • la figure 4 est une vue en coupe de la partie antérieure du guide-tampon de la figure 3, en cours de tir, le clou étant presque en fin de course ;
  • la figure 5 est une vue en perspective du guide-tampon de l'invention, dans une forme de réalisation à trois renflements de rétrécissement et
  • la figure 6 est une vue en perspective du guide-tampon de l'invention, dans une forme de réalisation à deux renflements de rétrécissement.
The invention will be better understood with the aid of the following description of the buffer guide and the fastening apparatus of the invention, with reference to the drawing in the appendix, on which
  • the figure 1 represents an axial sectional view of a nailing apparatus equipped with a buffer guide of the prior art, during firing, the nail being almost at the end of the race;
  • the figure 2 represents a larger-scale view of the anterior part of the buffer guide of the apparatus of the figure 1 ;
  • the figure 3 is a sectional view on a very large scale of the front part of a buffer guide of the invention;
  • the figure 4 is a sectional view of the anterior part of the buffer guide of the figure 3 during firing, the nail being almost at the end of the race;
  • the figure 5 is a perspective view of the buffer guide of the invention, in one embodiment with three narrowing bulges and
  • the figure 6 is a perspective view of the buffer guide of the invention, in one embodiment with two narrowing bulges.

En référence à la figure 1, un appareil de clouage 1, ici à moteur à combustion interne 2, de l'art antérieur, comporte un piston d'entraînement 3, avec une tête 4 pouvant être déplacée dans un cylindre 5 sous l'action de la mise à feu du combustible dans la chambre 6 de l'appareil.With reference to the figure 1 , a nailing apparatus 1, here with internal combustion engine 2, of the prior art, comprises a driving piston 3, with a head 4 can be moved in a cylinder 5 under the action of the firing of the fuel in the chamber 6 of the apparatus.

La tige de piston 7, à la fin du tir, est engagée dans le guide-tampon 8 après avoir propulsé le clou 9 dans le matériau support 10 destiné à le recevoir. Le clou 9 comporte une tête 11 et une tige 12. La tête 11 est d'un diamètre sensiblement égal à celui de l'alésage 13 du guide-tampon 8.The piston rod 7, at the end of the shot, is engaged in the buffer guide 8 after propelling the nail 9 in the support material 10 to receive it. The nail 9 comprises a head 11 and a rod 12. The head 11 is of a diameter substantially equal to that of the bore 13 of the buffer guide 8.

Une jupe de guidage 14 est montée sur la tige 12 du clou. Pendant le déplacement du clou dans le guide-tampon 8, la jupe prend appui contre la paroi de l'alésage 13 pour guider le clou. Dans la partie antérieure 30 du guide-tampon 8 est ménagé un évidement tronconique 15 pour l'éjection et l'expansion de la jupe 14. Cette partie antérieure est évasée vers l'avant.A guide skirt 14 is mounted on the rod 12 of the nail. During the movement of the nail in the buffer guide 8, the skirt bears against the wall of the bore 13 to guide the nail. In the anterior portion 30 of the buffer guide 8 is provided a frustoconical recess 15 for the ejection and expansion of the skirt 14. This anterior portion is flared forwards.

Dans la position des figures 1 et 2, le clou 9 n'est pas encore complètement enfoncé dans le matériau 10. La jupe de guidage 14 est sortie de la partie du guide-tampon 8 de section correspondant à celle de la tête de clou 11. La jupe 14 a pu s'expandre avant que la tête 11 du clou ne l'écrase contre le matériau support et qu'elle puisse donc être éjectée quand l'opérateur sortira l'appareil d'appui contre le matériau 10. Dans la position de la figure 2, la tête de clou vient de sortir de l'alésage 13 de section déterminée et constante et, entre cette position et l'enfoncement total du clou, jusqu'à ce que la tête 11 vienne contre la surface 16 du matériau 10, le clou n'est plus guidé.In the position of figures 1 and 2 , the nail 9 is not yet fully embedded in the material 10. The guide skirt 14 is out of the portion of the buffer guide 8 of section corresponding to that of the nail head 11. The skirt 14 could s' expandre before the head 11 of the nail crushes it against the support material and can therefore be ejected when the operator pulls the support device against the material 10. In the position of the figure 2 , the nail head has just left the bore 13 of determined and constant section and, between this position and the total depression of the nail, until the head 11 comes against the surface 16 of the material 10, the nail is no longer guided.

En référence à la figure 3, où les mêmes références désignent les mêmes moyens que sur les figures 1 et 2, on aperçoit dans le plan de coupe considéré un renflement radial de rétrécissement 17 de la paroi de l'évidement 15 qui vient en saillie vers l'intérieur, vers l'axe 18 du guide-tampon, pour prolonger la paroi de l'alésage 13 du guide-tampon, qui s'étend à l'arrière de l'évidement 15, jusqu'à l'extrémité avant 19 du guide-tampon 8. Bien que ce ne soit pas le cas en pratique, même s'il n'y avait que ce seul renflement radial 17 et au moins celui-là, la tête de clou 9 continuerait, pendant sa course à travers l'évidement 15 et le long de ce rétrécissement partiel 35, à être guidée au moins en partie, tant au niveau de sa tête 11 qu'au niveau de sa jupe de guidage 14, comme on le voit sur la figure 4.With reference to the figure 3 , where the same references designate the same means as on the figures 1 and 2 a radial narrowing bulge 17 of the wall of the recess 15 projecting inwards towards the axis 18 of the buffer guide is seen in the section plane considered to extend the wall of the bore. 13 of the buffer guide, which extends to the rear of the recess 15, to the front end 19 of the buffer guide 8. Although this is not the case in practice, even if it Only this radial bulge 17 and at least that one, the nail head 9 would continue, during its stroke through the recess 15 and along this partial narrowing 35, to be guided at least in part, so much so that at its head 11 at its guide skirt 14, as seen on the figure 4 .

En pratique, l'évidement 15 comporte vraiment un rétrécissement 40 de même section de passage que l'alésage 13 de réception du clou et comporte en fait plusieurs renflements radiaux.In practice, the recess 15 really has a narrowing 40 of the same passage section as the bore 13 for receiving the nail and in fact comprises several radial bulges.

Pour le guide-tampon 8' de la figure 5, le rétrécissement 40' est formé par trois renflements radiaux 20-22, espacés angulairement deux à deux de 120°.For the 8 'buffer guide of the figure 5 , the narrowing 40 'is formed by three radial bulges 20-22, angularly spaced two by two by 120 °.

Sur le guide-tampon 8" de la figure 6, le rétrécissement 40" est formé par seulement deux renflements radiaux 23, 24 diamétralement opposés.On the 8 "buffer guide of the figure 6 , the narrowing 40 "is formed by only two radial bulges 23, 24 diametrically opposed.

Il pourrait y en avoir plus, mais pas trop pour que l'évidement 15 pour l'expansion et l'éjection de la jupe de guidage des clous subsiste.There may be more, but not so much that the recess for expanding and ejecting the nail guiding skirt remains.

Claims (5)

Guide-tampon (8) d'appareil (1) de fixation de clous, comportant un alésage (13) de réception d'un clou (9) comportant une tête (11) et une tige (12) sur laquelle est glissée une jupe (14), l'alésage (13) ayant une section de passage déterminée pour que la tête (11) et la jupe (14) du clou (9) y assurent son guidage, un évidement (15) étant ménagé dans la partie antérieure (30) du guide-tampon (8) pour l'éjection et l'expansion de la jupe de guidage (14), guide-tampon caractérisé par le fait que l'évidement (15) comporte au moins un renflement radial (17) en saillie vers l'intérieur pour prolonger la paroi de l'alésage (13) du guide-tampon et former un rétrécissement (35) de guidage de clou.Tampon guide (8) for fastening nails, having a bore (13) for receiving a nail (9) having a head (11) and a rod (12) on which is slipped a skirt (14), the bore (13) having a section of passage determined so that the head (11) and the skirt (14) of the nail (9) provide its guidance, a recess (15) being formed in the front part (30) of the buffer guide (8) for the ejection and expansion of the guide skirt (14), buffer guide characterized in that the recess (15) comprises at least one radial bulge (17) projecting inwards to extend the wall of the bore (13) of the buffer guide and form a nail guide narrowing (35). Guide-tampon, selon la revendication 1, dans lequel l'évidement (15) comporte un rétrécissement (40' ; 40 ") de même section de passage que l'alésage (13) de réception de clou.A buffer guide according to claim 1, wherein the recess (15) has a narrowing (40 ', 40 ") of the same passage section as the nail receiving bore (13). Guide-tampon, selon la revendication 2, dans lequel le rétrécissement (40") est formé par deux renflements radiaux (23, 24) diamétralement opposés.A buffer guide according to claim 2, wherein the narrowing (40 ") is formed by two diametrically opposed radial bulges (23, 24). Guide-tampon, selon la revendication 2, dans lequel le rétrécissement (40') est formé par trois renflements radiaux (20-22) espacés angulairement deux à deux de 120°.A buffer guide according to claim 2, wherein the narrowing (40 ') is formed by three radial bulges (20-22) angularly spaced two by two by 120 °. Appareil de fixation de clous comportant un guide-tampon (8) selon l'une des revendications 1 à 4.Nail mounting apparatus comprising a buffer guide (8) according to one of claims 1 to 4.
EP11167399.2A 2010-06-08 2011-05-25 guide for a nail-setting device and device including the guide Active EP2402120B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1002417A FR2960810B1 (en) 2010-06-08 2010-06-08 BUFFER GUIDE FOR NAIL FIXING APPARATUS AND APPARATUS COMPRISING THE BUFFER GUIDE

Publications (2)

Publication Number Publication Date
EP2402120A1 true EP2402120A1 (en) 2012-01-04
EP2402120B1 EP2402120B1 (en) 2020-09-30

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EP11167399.2A Active EP2402120B1 (en) 2010-06-08 2011-05-25 guide for a nail-setting device and device including the guide

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US (1) US9073194B2 (en)
EP (1) EP2402120B1 (en)
KR (1) KR20110134315A (en)
CN (1) CN102275150B (en)
AU (1) AU2011202362B2 (en)
DE (1) DE102011075817B4 (en)
DK (1) DK2402120T3 (en)
ES (1) ES2397173B1 (en)
FR (1) FR2960810B1 (en)
NZ (1) NZ593049A (en)
TW (1) TWI548495B (en)

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CN102275150B (en) 2016-01-27
AU2011202362B2 (en) 2016-11-24
DE102011075817B4 (en) 2012-07-12
ES2397173A2 (en) 2013-03-05
US9073194B2 (en) 2015-07-07
FR2960810B1 (en) 2012-07-06
ES2397173R1 (en) 2013-05-14
NZ593049A (en) 2012-12-21
ES2397173B1 (en) 2013-12-05
EP2402120B1 (en) 2020-09-30
DK2402120T3 (en) 2020-12-21
TWI548495B (en) 2016-09-11
FR2960810A1 (en) 2011-12-09
CN102275150A (en) 2011-12-14
DE102011075817A1 (en) 2011-12-08
AU2011202362A1 (en) 2011-12-22
TW201206654A (en) 2012-02-16
US20110297727A1 (en) 2011-12-08

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