EP0718076B1 - Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus - Google Patents
Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus Download PDFInfo
- Publication number
- EP0718076B1 EP0718076B1 EP95440091A EP95440091A EP0718076B1 EP 0718076 B1 EP0718076 B1 EP 0718076B1 EP 95440091 A EP95440091 A EP 95440091A EP 95440091 A EP95440091 A EP 95440091A EP 0718076 B1 EP0718076 B1 EP 0718076B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- rollers
- collar
- groove
- end piece
- 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 - Lifetime
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 10
- 238000010168 coupling process Methods 0.000 title claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 10
- 238000009527 percussion Methods 0.000 title claims description 13
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S403/00—Joints and connections
- Y10S403/04—Quick release
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/59—Manually releaseable latch type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/59—Manually releaseable latch type
- Y10T403/599—Spring biased manipulator
Definitions
- the present invention relates to a device anti-vibration quick coupling of the tool shank working at a percussion device.
- Percussion devices and particularly impact hammers are used in numerous areas of application for stripping, knocking and dig grooves in various materials.
- These devices generally have a body of cylindrical shape comprising at one of its ends a quick locking and unlocking device the tail of a work tool whose active part varies depending on the type of application. So in the case of a tool intended for debarking or pickling, the tail of the work usually involves a turning its retention in the percussion device by means of organs stop.
- Document EP-A-0,427,647 in the name of the Applicant, describes a percussion device comprising a generally tubular body comprising a nozzle extreme on which is adapted a coupling system of the tail of a work tool associated with a shock absorber shock and comprising three stop balls erasable by the controlled sliding of a threaded elastic return ring on the end cap, and an annular drawer, arranged internally at the end piece, bearing thrust balls retractable partially inserted in the turning practiced in the tail of the work tool, which come place themselves in the holes left free by erasing the stop balls, allowing the axial sliding of the tail of the work tool and therefore its extraction.
- the known devices have the disadvantage of being blocked under the effect of deformation of certain parts due to wear: thus, for example, in the case of the device which has just been described, the balls always have a single point of contact with the rounded surface of the neck of the tail the working tool, can deteriorate said surface during back and forth movements made by the tool.
- the object of the present invention is to remedy these disadvantages by proposing a coupling device greater reliability and simplified manufacturing, therefore lower cost and quick and easy maintenance, significantly improving the user comfort of the device percussion.
- the coupling device object of the invention is essentially characterized in that it comprises on the one hand a cylindrical tip which extends the body of a percussion device forward and in which three longitudinal grooves are practiced regularly spaced angularly, in each which can move a roller with an axis whose ends are able to roll or slide around the edges of said groove; on the other hand a ring threaded on said tip, on which it can move longitudinally in being brought back against said rollers by means of a spring, said ring internally having a projection annular whose front face is flat and whose face rear is concave and partially envelops said rollers, the forward movement of said ring being able be made by means of a ring which surrounds the assembly and which has on its internal wall, approximately in its middle, an annular rib.
- the annular rib of said ring has a vertical front face against which comes to rest on the rear edge of the ring and one side oblique rear helping to disengage the rollers of said ring when unlocking.
- the ring which surrounds the assembly is provided, in back of said annular rib, a rib helical formed on part of its circumference internal, and a bore is drilled radially in the end piece behind the longitudinal grooves, in which bore is introduced a blocking piece which emerges from the nozzle and which abuts against said rib helical.
- a coupling device comprises a end piece 1 of generally cylindrical shape, extending towards front body 10 'of a percussion device 1' of the type known.
- the end piece 1 are made longitudinally three grooves 10, angularly offset by 120 ° and each comprising two edges 100 slightly set back from the tip surface.
- In the gorge 10 can be move three rollers 2, each provided with an axis 20 whose ends rest on the two edges 100 of the grooves 10.
- a ring 3 internally having an angular projection 30 whose rear face is concave, is threaded on the end piece 1 and is coaxially secured, forward, at the end 40 of a spring 4 whose other end 41 is secured to a ring 8 abutting against a fixed retaining ring 80 at the front end of the end piece 1 under the thrust of the spring 4 also pushing towards the bottom of the gorges 10, on the ring 3 which surrounds the rollers 2 inserted partially in the concave face of the annular projection 30 of the ring 3.
- a locking ring 5 envelope the assembly, allowing the displacement of the ring 3 towards the front.
- an 11 'flyweight is engaged in a known manner in a bore in the body 10 ', being intended to strike, by pressure of a fluid, the shank 6 of a working tool, coupled to end piece 1 as can be seen in Figure 2 and having two polygonal parts 60 and 61 immobilizing angularly said shank of the tool 6 inside of tip 1 limited in translation over a stroke defined by a turning 62 into which the rollers 2 penetrate covered by the concave face of the annular projection 30 of the ring 3.
- the rollers 2 advantageously include a groove 21 which follows the contour of the surface of the tail 6 in bar turning 62, avoiding, as is the case with current devices using balls, to deform the surface of said tool during its movements in front and in rear, under the effect of the counterweight 11 '.
- the ring 5 is provided on its internal wall 50 with a projection annular 51 having a vertical face 510 against which abuts the vertical rear edge 31 of the ring 3 and an oblique rear face 511 helping to disengage rollers of said ring 3 during unlocking.
- the internal wall 50 of the ring 5 comprises also, behind the annular projection 51, a helical rib 52 provided over its entire length with a groove 54 in which can slide, when turning the ring 5 for advancing it, the stud 70 with a screw with stud 7 screwed into a threaded bore 12 formed in the nozzle 1 behind the grooves 10, the stud 70 emerging tip 1.
- Unlocking the tail of the tool work inserted in the device according to the invention is performed as follows: a rotation of the ring 5, of a half-turn for example, allows its sliding towards the front, via the nipple 70 and the groove helical 54, by pushing the ring 3 against the spring 4, which has the effect of freeing the rollers 2 from bar turning 62 of the tail 6 of the working tool.
- the rollers 2 are move up in the space 53 delimited by the two ribs 51 and 52 of the ring 5, which allows remove the shank 6 from the tool of the percussion device end piece 1. Locking the tool shank is performed by the reverse maneuver.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling Tools (AREA)
Abstract
Description
La présente invention a pour objet un dispositif antivibratile d'accouplement rapide de la queue d'un outil de travail à un appareil à percussion.The present invention relates to a device anti-vibration quick coupling of the tool shank working at a percussion device.
Les appareils à percussion, et particulièrement les marteaux piqueurs à percussion, sont utilisés dans de nombreux domaines d'application pour décaper, défoncer et creuser des saignées dans des matériaux divers.Percussion devices, and particularly impact hammers are used in numerous areas of application for stripping, knocking and dig grooves in various materials.
Ces appareils comportent généralement un corps de forme cylindrique comprenant à l'une de ses extrémités un dispositif de verrouillage et de déverrouillage rapides de la queue d'un outil de travail dont la partie active varie suivant le type d'application. Ainsi dans le cas d'un outil destiné à l'écorçage ou au décapage, la queue de l'outil de travail comporte habituellement un décolletage permettant son maintien dans l'appareil à percussion au moyen d'organes de butée.These devices generally have a body of cylindrical shape comprising at one of its ends a quick locking and unlocking device the tail of a work tool whose active part varies depending on the type of application. So in the case of a tool intended for debarking or pickling, the tail of the work usually involves a turning its retention in the percussion device by means of organs stop.
Le document EP-A-0,427,647, au nom de la demanderesse, décrit un appareil à percussion comportant un corps de forme générale tubulaire comprenant un embout extrême sur lequel est adapté un système d'accouplement de la queue d'un outil de travail associé à un amortisseur de choc et comprenant trois billes d'arrêt effaçables par le coulissement commandé d'une bague à rappel élastique enfilée sur l'embout extrême, et un tiroir annulaire, disposé intérieurement à l'embout, portant des billes de butées escamotables introduites partiellement dans le décolletage pratiqué dans la queue de l'outil de travail, qui viennent se placer dans les trous laissés libres par l'effacement des billes d'arrêt, permettant le coulissement axial de la queue de l'outil de travail et donc son extraction.Document EP-A-0,427,647, in the name of the Applicant, describes a percussion device comprising a generally tubular body comprising a nozzle extreme on which is adapted a coupling system of the tail of a work tool associated with a shock absorber shock and comprising three stop balls erasable by the controlled sliding of a threaded elastic return ring on the end cap, and an annular drawer, arranged internally at the end piece, bearing thrust balls retractable partially inserted in the turning practiced in the tail of the work tool, which come place themselves in the holes left free by erasing the stop balls, allowing the axial sliding of the tail of the work tool and therefore its extraction.
Cependant les dispositifs connus présentent l'inconvénient de se bloquer sous l'effet de la déformation de certaines pièces dues à l'usure: ainsi, par exemple, dans le cas du dispositif qui vient d'être décrit, les billes d'arrêt, qui présentent toujours un seul point de contact avec la surface arrondie du décolletage de la queue de l'outil de travail, peuvent détériorer ladite surface durant les mouvements aller et retour effectués par l'outil. However, the known devices have the disadvantage of being blocked under the effect of deformation of certain parts due to wear: thus, for example, in the case of the device which has just been described, the balls always have a single point of contact with the rounded surface of the neck of the tail the working tool, can deteriorate said surface during back and forth movements made by the tool.
D'autre part le coût de fabrication de ces dispositifs est relativement élevé du fait du grand nombre de pièces qui les composent, entraínant par ailleurs pour leur nettoyage ou pour leur remplacement un démontage et un remontage long et compliqué qui nécessite un outillage spécifique.On the other hand the cost of manufacturing these devices is relatively high due to the large number of parts that make them up, also leading to cleaning or for replacement, disassembly and long and complicated reassembly which requires tools specific.
La présente invention a pour but de remédier à ces inconvénients en proposant un dispositif d'accouplement de plus grande fiabilité et de fabrication simplifiée, donc d'un coût plus faible et d'un entretien facile et rapide, améliorant nettement le confort d'utilisation de l'appareil à percussion.The object of the present invention is to remedy these disadvantages by proposing a coupling device greater reliability and simplified manufacturing, therefore lower cost and quick and easy maintenance, significantly improving the user comfort of the device percussion.
Le dispositif d'accouplement objet de l'invention se caractérise essentiellement en ce qu'il comprend d'une part un embout de forme cylindrique qui prolonge vers l'avant le corps d'un appareil à percussion et dans lequel sont pratiquées trois gorges longitudinales régulièrement espacées angulairement, dans chacune desquelles peut se déplacer un galet muni d'un axe dont les extrémités sont aptes à rouler ou à glisser sur les bords de ladite gorge; d'autre part un anneau enfilé sur ledit embout, sur lequel il peut se déplacer longitudinalement en étant rappelé en arrière contre lesdits galets au moyen d'un ressort, ledit anneau présentant intérieurement une saillie annulaire dont la face avant est plane et dont la face arrière est concave et enveloppe partiellement lesdits galets, le déplacement vers l'avant dudit anneau pouvant être réalisé au moyen d'une bague qui entoure l'ensemble et qui comporte sur sa paroi interne, approximativement en son milieu, une nervure annulaire.The coupling device object of the invention is essentially characterized in that it comprises on the one hand a cylindrical tip which extends the body of a percussion device forward and in which three longitudinal grooves are practiced regularly spaced angularly, in each which can move a roller with an axis whose ends are able to roll or slide around the edges of said groove; on the other hand a ring threaded on said tip, on which it can move longitudinally in being brought back against said rollers by means of a spring, said ring internally having a projection annular whose front face is flat and whose face rear is concave and partially envelops said rollers, the forward movement of said ring being able be made by means of a ring which surrounds the assembly and which has on its internal wall, approximately in its middle, an annular rib.
Selon une caractéristique additionnelle avantageuse de l'invention la nervure annulaire de ladite bague présente une face avant verticale contre laquelle vient s'appuyer le bord arrière de l'anneau et une face arrière oblique aidant au désengagement des galets dudit anneau lors du déverrouillage.According to an additional characteristic advantageous of the invention the annular rib of said ring has a vertical front face against which comes to rest on the rear edge of the ring and one side oblique rear helping to disengage the rollers of said ring when unlocking.
Selon une autre caractéristique additionnelle de l'invention la bague qui entoure l'ensemble est pourvue, en arrière de ladite nervure annulaire, d'une nervure hélicoïdale ménagée sur une partie de sa circonférence interne, et un alésage est pratiqué radialement dans l'embout en arrière des gorges longitudinales, dans lequel alésage est introduite une pièce de blocage qui émerge de l'embout et qui vient en butée contre ladite nervure hélicoïdale.According to another additional characteristic of the invention the ring which surrounds the assembly is provided, in back of said annular rib, a rib helical formed on part of its circumference internal, and a bore is drilled radially in the end piece behind the longitudinal grooves, in which bore is introduced a blocking piece which emerges from the nozzle and which abuts against said rib helical.
Les avantages et les caractéristiques de la présente invention ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, étant entendu que cette description ne présente aucun caractère limitatif vis à vis de l'invention, la protection étant définie par les revendications.The advantages and features of the present invention will emerge more clearly from the description which follows and which relates to the appended drawing, it being understood that this description does not present any limiting character with respect to the invention, protection being defined by the claims.
Dans le dessin annexé :
- la figure 1 représente une vue en perspective et en éclaté du dispositif d'accouplement selon l'invention monté sur un appareil à percussion.
- la figure 2 représente une vue en coupe d'un dispositif selon l'invention auquel est accouplée la queue d'un outil de travail.
- Figure 1 shows a perspective and exploded view of the coupling device according to the invention mounted on a percussion device.
- 2 shows a sectional view of a device according to the invention which is coupled to the tail of a working tool.
Si on se réfère à la figure 1 on peut voir qu'un
dispositif d'accouplement selon l'invention comprend un
embout 1 de forme globalement cylindrique, prolongeant vers
l'avant le corps 10' d'un appareil à percussion 1' de type
connu. Dans l'embout 1 sont pratiquées longitudinalement
trois gorges 10, décalées angulairement de 120° et
comprenant chacune deux rebords 100 légèrement en retrait de
la surface de l'embout. Dans les gorges 10 peuvent se
déplacer trois galets 2, munis chacun d'un axe 20 dont les
extrémités reposent sur les deux bords 100 des gorges 10. Un
anneau 3, présentant intérieurement une saillie angulaire 30
dont la face arrière est concave, est enfilé sur l'embout 1
et est solidarisé coaxialement, vers l'avant, à l'extrémité
40 d'un ressort 4 dont l'autre extrémité 41 est solidarisée
à une bague 8 venant en butée contre un jonc d'arrêt 80 fixé
à l'extrémité avant de l'embout 1 sous la poussée du ressort
4 exerçant également une poussée, vers le fond des gorges
10, sur l'anneau 3 qui entoure les galets 2 insérés
partiellement dans la face concave de la saillie annulaire
30 de l'anneau 3. Une bague de verrouillage 5 enveloppe
l'ensemble, permettant le déplacement de l'anneau 3 vers
l'avant.If we refer to Figure 1 we can see that a
coupling device according to the invention comprises a
end piece 1 of generally cylindrical shape, extending towards
front body 10 'of a percussion device 1' of the type
known. In the end piece 1 are made longitudinally
three
On peut voir également qu'une masselotte 11' est
engagée de manière connue dans un alésage pratiqué dans le
corps 10', étant destinée à venir percuter, par la pression
d'un fluide, la queue 6 d'un outil de travail, accouplé à
l'embout 1 comme on peut le voir sur la figure 2 et
possédant deux parties polygonales 60 et 61 immobilisant
angulairement ladite queue de l'outil 6 à l'intérieur de
l'embout 1 limitée en translation sur une course définie par
un décolletage 62 dans lequel pénètrent les galets 2
recouverts par la face concave de la saillie annulaire 30 de
l'anneau 3.We can also see that an 11 'flyweight is
engaged in a known manner in a bore in the
body 10 ', being intended to strike, by pressure
of a fluid, the
Les galets 2 comportent avantageusement une
gorge 21 qui épouse le contour de la surface de la queue 6
dans le décolletage 62, évitant, comme c'est le cas des
dispositifs actuels utilisant des billes, de déformer la
surface dudit outil lors de ses déplacements en avant et en
arrière, sous l'effet de la masselotte 11'.The
On peut voir également sur la figure 2 que la
bague 5 est pourvue sur sa paroi interne 50 d'une saillie
annulaire 51 présentant une face avant 510 verticale contre
laquelle vient buter le bord arrière vertical 31 de l'anneau
3 et une face arrière 511 oblique aidant au désengagement
des galets dudit anneau 3 lors du déverrouillage.We can also see in Figure 2 that the
ring 5 is provided on its internal wall 50 with a projection
annular 51 having a
La paroi interne 50 de la bague 5 comporte
également, en arrière de la saillie annulaire 51, une
nervure hélicoidale 52 munie sur toute sa longueur d'une
gorge 54 dans laquelle peut coulisser, lorsque l'on tourne
la bague 5 en vue de la faire avancer, le téton 70 d'une vis
à téton 7 vissée dans un alésage taraudé 12 ménagé dans
l'embout 1 en arrière des gorges 10, le téton 70 émergeant
de l'embout 1.The internal wall 50 of the ring 5 comprises
also, behind the
Le déverrouillage de la queue de l'outil de
travail insérée dans le dispositif selon l'invention est
effectué de la façon suivante : une rotation de la bague 5,
d'un demi-tour par exemple, permet son coulissement vers
l'avant, par l'intermédiaire du téton 70 et de la gorge
hélicoïdale 54, en poussant l'anneau 3 contre le ressort 4,
ce qui a pour effet de libérer les galets 2 du décolletage
62 de la queue 6 de l'outil de travail. Les galets 2 se
déplacent vers le haut dans l'espace 53 délimité par les
deux nervures 51 et 52 de la bague 5, ce qui permet de
sortir la queue 6 de l'outil de l'appareil à percussion de
l'embout 1. Le verrouillage de la queue de l'outil est
réalisé par la manoeuvre inverse.Unlocking the tail of the tool
work inserted in the device according to the invention is
performed as follows: a rotation of the ring 5,
of a half-turn for example, allows its sliding towards
the front, via the
Claims (4)
- Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus, characterised in that it comprises on one hand a cylindrical end piece (1), which prolongates the body (10') of a percussion apparatus (1') towards the front, and in which three longitudinal grooves (10) are made at a regular angular spacing, while a roller (2), fitted with a shaft (20) whose ends can roll or slide on the edges (100) of said groove (10), can move in each of these grooves; and, on the other hand, a ring (3) passed on said end piece (1) on which it can move in the longitudinal direction while being pushed backwards against said rollers (2) by a spring (4), said ring (3) having on its internal side a ring-shaped projection (30) whose front side is flat and whose back side is concave and covers partially said rollers (2), while the movement of said ring towards the front (3) can occur by means of a collar (5), which surrounds the whole and has, on its internal side (50), approximately in its centre, a ring-shaped rib (51).
- Device according to claim 1, characterised in that the edges (100) of the grooves (10) stand back versus the surface of the end piece (1).
- Device according to claim 1 or claim 2, characterised in that the internal side (50) of the collar (5) shows, behind the ring-shaped rib (51), a helicoidal rib (52), which is provided with a groove (54) on its whole length, in which a pin (70) protruding from said end piece (1) can run when the collar (5) is turned to move it forward.
- Device according to one of the previous claims, characterised in that the rollers (2) are provided with a groove (21) intended to fit the shape of the surface of the working tool shaft.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9415732 | 1994-12-23 | ||
FR9415732A FR2728496A1 (en) | 1994-12-23 | 1994-12-23 | ANTIVIBRATILE DEVICE FOR QUICKLY COUPLING THE TAIL FROM A WORKING TOOL TO A PERCUSSION APPARATUS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0718076A1 EP0718076A1 (en) | 1996-06-26 |
EP0718076B1 true EP0718076B1 (en) | 2001-10-17 |
Family
ID=9470302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95440091A Expired - Lifetime EP0718076B1 (en) | 1994-12-23 | 1995-12-21 | Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US5669730A (en) |
EP (1) | EP0718076B1 (en) |
AT (1) | ATE206991T1 (en) |
DE (1) | DE69523267T2 (en) |
FR (1) | FR2728496A1 (en) |
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US6688610B2 (en) * | 2000-05-12 | 2004-02-10 | Power Tool Holders Incorporated | Chuck with quick change |
US6533291B2 (en) | 2001-02-14 | 2003-03-18 | Power Tool Holders Incorporated | Chuck having quick change mechanism |
US6834864B2 (en) * | 2001-10-24 | 2004-12-28 | Power Tool Holders Incorporated | Chuck having quick change mechanism |
US7766394B2 (en) * | 2006-10-30 | 2010-08-03 | Medtronic, Inc. | Breakaway connectors and systems |
EP2112409A1 (en) * | 2008-04-24 | 2009-10-28 | Sila Holding Industriale Spa | Device for disconnecting and reconnecting automatically two adjacent lengths of an elongated mechanical transmission member, such as a push-pull cable, a rod or a bar, particularly for use in motor vehicles |
US9444197B2 (en) * | 2012-03-19 | 2016-09-13 | Holland Electronics, Llc | Shielded and multishielded coaxial connectors |
DE102021203063A1 (en) * | 2021-03-26 | 2022-09-29 | Robert Bosch Gesellschaft mit beschränkter Haftung | Hand tool machine with a locking device |
DE102021203064A1 (en) * | 2021-03-26 | 2022-09-29 | Robert Bosch Gesellschaft mit beschränkter Haftung | Hand tool machine with a locking device |
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US5141355A (en) * | 1989-03-22 | 1992-08-25 | Star Lock Systems, Inc. | Lock and release apparatus |
DE3930250A1 (en) * | 1989-09-11 | 1991-03-14 | Licentia Gmbh | Adaptor and core-bit and centre-hole bit - are attached to hand-operated electric drill spindle |
FR2654029B1 (en) * | 1989-11-08 | 1992-02-21 | Bidaux Marc | PNEUMATIC PERCUSSION APPARATUS WITH REMOVABLE WORKING TOOL. |
US5398946A (en) * | 1993-12-29 | 1995-03-21 | Poly-Tech Industries | Chuck having one-step lock and release |
-
1994
- 1994-12-23 FR FR9415732A patent/FR2728496A1/en active Granted
-
1995
- 1995-12-21 US US08/576,771 patent/US5669730A/en not_active Expired - Fee Related
- 1995-12-21 DE DE69523267T patent/DE69523267T2/en not_active Expired - Fee Related
- 1995-12-21 AT AT95440091T patent/ATE206991T1/en active
- 1995-12-21 EP EP95440091A patent/EP0718076B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5669730A (en) | 1997-09-23 |
EP0718076A1 (en) | 1996-06-26 |
FR2728496A1 (en) | 1996-06-28 |
DE69523267D1 (en) | 2001-11-22 |
FR2728496B1 (en) | 1997-03-07 |
ATE206991T1 (en) | 2001-11-15 |
DE69523267T2 (en) | 2002-07-04 |
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