FR2996157A1 - Percussion device with manual action for e.g. excavation, has tool chuck provided with SDS type tool that is axially displaced under force of impact when rear end of tool is struck by striker, where chuck is mechanically attached to body - Google Patents

Percussion device with manual action for e.g. excavation, has tool chuck provided with SDS type tool that is axially displaced under force of impact when rear end of tool is struck by striker, where chuck is mechanically attached to body Download PDF

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Publication number
FR2996157A1
FR2996157A1 FR1202688A FR1202688A FR2996157A1 FR 2996157 A1 FR2996157 A1 FR 2996157A1 FR 1202688 A FR1202688 A FR 1202688A FR 1202688 A FR1202688 A FR 1202688A FR 2996157 A1 FR2996157 A1 FR 2996157A1
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FR
France
Prior art keywords
tool
allows
impact
chuck
force
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.)
Pending
Application number
FR1202688A
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French (fr)
Inventor
Alexandre Emmanuel Christian Miralles
Pierre Marie Stephane Ravat
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Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR1202688A priority Critical patent/FR2996157A1/en
Publication of FR2996157A1 publication Critical patent/FR2996157A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D1/00Hand hammers; Hammer heads of special shape or materials
    • B25D1/16Hand hammers; Hammer heads of special shape or materials having the impacting head in the form of a sleeve slidable on a shaft, e.g. hammers for driving a valve or draw-off tube into a barrel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084Rotating chucks or sockets
    • B25D17/088Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • B25D17/11Arrangements of noise-damping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D3/00Hand chisels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

The device has a body (a) in which a striker (b) is driven directly or indirectly by force of an operator. A tool chuck (c) of existing type or fresh design is provided in a front portion of the device. The tool chuck is provided with an SDS type tool (d) that is axially displaced under the force of impact when the rear end of the tool is struck by the striker, where the tool chuck is mechanically attached to the body via an axial damping system. The body includes a sound insulation element to reduce the sound levels due to the action of striking of the striker on the tool.

Description

La présente invention concerne un dispositif de percussion à action manuelle, à changement d'outil rapide et à outil flottant.The present invention relates to a manual action percussion device, rapid tool change and floating tool.

Les principaux problèmes techniques qui se posent lors de l'utilisation d'un dispositif de percussion à action manuelle sont : - la difficulté ou l'impossibilité de procéder à un changement d'outil rapide - la transmission à l'operateur des vibrations liées à l'impact sur l'outil La présente invention vise donc à remédier à ces inconvénients connus de l'art antérieur.The main technical problems that arise when using a hand-operated percussion device are: - the difficulty or impossibility of making a rapid tool change - the transmission to the operator of vibrations related to the impact on the tool The present invention therefore aims to remedy these drawbacks known from the prior art.

L'invention propose un dispositif comprenant un corps dans lequel se déplace un percuteur mu directement ou indirectement par la force de l'operateur, caractérisé en ce que ce dispositif comporte en sa partie avant un mandrin porte outil de type existant ou de conception nouvelle, caractérisé en ce qu'il permet un changement rapide dudit outil, et qu'il autorise à cet outil un déplacement axial sous la force de l'impact. Selon des modes particuliers de réalisation : ledit mandrin porte outil est mécaniquement lié au corps du dispositif de manière totalement rigide. ledit mandrin porte outil est mécaniquement lié au corps du dispositif par l'intermédiaire d'un système d'amortissement axial. ledit mandrin porte outil et le corps du dispositif sont mécaniquement liés mais restent libres en rotation l'un par rapport à l'autre autour de l'axe dudit mandrin porte outil. ledit corps du dispositif pourra comprendre élément d'isolation phonique destiné à réduire les émissions sonores dues à l'action de frappe du percuteur sur la queue de l'outil.The invention proposes a device comprising a body in which a striker mu moves directly or indirectly by the force of the operator, characterized in that this device comprises in its front part a toolholder mandrel of existing type or new design, characterized in that it allows a rapid change of said tool, and that it allows this tool an axial displacement under the force of the impact. According to particular embodiments: said tool chuck is mechanically connected to the body of the device in a completely rigid manner. said tool chuck is mechanically connected to the body of the device via an axial damping system. said tool chuck and the body of the device are mechanically connected but remain free to rotate relative to each other about the axis of said tool chuck. said body of the device may comprise sound insulation element intended to reduce noise emissions due to the strike action of the striker on the tail of the tool.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels : la figure 1 est une représentation schématique du dispositif selon l'invention la figure 2 est une vue en coupe partielle de la figure 1 illustrée à titre d'exemple non limitatif par un mandrin porte outil de type SDS. la figure 3 présente un autre mode de réalisation du dispositif dans lequel le mandrin porte outil est lié mécaniquement au corps du dispositif par un élément d'amortissement axial. La figure 3 est illustrée à titre d'exemple non limitatif par un mandrin porte outil de type SDS. la figure 4 présente un autre mode de réalisation du dispositif dans lequel le mandrin porte outil et le corps du dispositif sont liés mécaniquement mais restent libre en rotation l'un par rapport à l'autre autour de l'axe du mandrin porte outil. La figure 4 est illustrée à titre d'exemple non limitatif par un mandrin porte outil de type SDS. le figure 5 présente une variante du dispositif dans lequel le corps du dispositif pourra comprendre élément d'isolation phonique destiné à réduire les émissions sonores dues à l'action de frappe du percuteur sur la queue d'outil. Le figure 5 est illustrée à titre d'exemple non limitatif par un mandrin porte outil de type SDS.Other features and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which: FIG. 1 is a schematic representation of the device according to the invention; FIG. is a partial sectional view of Figure 1 illustrated by way of non-limiting example by a toolholder mandrel type SDS. Figure 3 shows another embodiment of the device in which the tool chuck is mechanically connected to the body of the device by an axial damping element. Figure 3 is illustrated by way of non-limiting example by a toolholder mandrel SDS type. Figure 4 shows another embodiment of the device in which the tool chuck and the body of the device are mechanically linked but remain free to rotate relative to each other about the axis of the tool chuck. Figure 4 is illustrated by way of non-limiting example by a toolholder mandrel SDS type. Figure 5 shows a variant of the device in which the body of the device may comprise soundproofing element for reducing noise emissions due to the strike action of the striker on the tool shank. Figure 5 is illustrated by way of non-limiting example by a toolholder mandrel SDS type.

En référence aux figures 1 et 2, le dispositif conforme à l'invention comprend un corps (a), dans lequel se déplace un percuteur (b) mu directement ou indirectement par la force de l'operateur, caractérisé en ce que ce dispositif comporte en sa partie avant un mandrin porte outil (c) caractérisé en ce qu'il permet un changement rapide dudit outil, et qu'il autorise à cet outil un déplacement axial sous la force de l'impact, lorsque l'extrémité arrière de l'outil (d) est frappée par le percuteur (b). En référence à la figure 3, le mandrin porte outil (c) -caractérisé en ce qu'il permet un changement rapide dudit outil (d), et qu'il autorise à cet outil un déplacement axial sous la force de l'impact- pourra être mécaniquement lié au corps du dispositif (a) par un élément d'amortissement axial (e), illustré à titre d'exemple non limitatif par un manchon double en élastomère. En référence à la figure 4, le mandrin porte outil (c) -caractérisé en ce qu'il permet un changement rapide dudit outil (d), et qu'il autorise à cet outil (d) un déplacement axial sous la force de l'impact- et le corps du dispositif pourront être liés mécaniquement mais en restant libre en rotation l'un par rapport à l'autre autour de l'axe du mandrin porte outil (c) grâce à un dispositif tournant (0, illustré a titre d'exemple non limitatif par un manchon à double chemin de billes. En référence à la figure 5, le corps du dispositif pourra comprendre élément d'isolation phonique (g) destiné à réduire les émissions sonores dues à l'action de frappe du percuteur sur la queue de l'outil (d). Ce dispositif trouvera son application dans les travaux de frappe, de burinage, d'arasement, de fouille, de découpe, de jardinage, de nettoyage, de décapage, de déneigement, ou toute autre activités mettant en oeuvre un outil de percussion. La présente invention n'est nullement limitée aux modes de réalisation décrits et représentés mais l'homme du métier saura y apporter toute variante conforme à son esprit.With reference to FIGS. 1 and 2, the device according to the invention comprises a body (a), in which a firing pin (b) moves directly or indirectly by the force of the operator, characterized in that this device comprises in its front portion a tool chuck (c) characterized in that it allows a rapid change of said tool, and that it allows this tool an axial displacement under the force of the impact, when the rear end of the tool (d) is struck by the firing pin (b). Referring to Figure 3, the tool chuck (c) -characterized in that it allows a rapid change of said tool (d), and that it allows this tool an axial displacement under the force of the impact- may be mechanically connected to the body of the device (a) by an axial damping element (e), illustrated by way of non-limiting example by a double elastomer sleeve. Referring to Figure 4, the tool chuck (c) -characterized in that it allows a rapid change of said tool (d), and that it allows this tool (d) an axial displacement under the force of the impact- and the body of the device may be mechanically linked but remaining free in rotation relative to each other about the axis of the tool chuck (c) through a rotating device (0, illustrated as Non-limiting example of a sleeve with a double ball path With reference to FIG. 5, the body of the device may comprise soundproofing element (g) intended to reduce the sound emissions due to the strike action of the striker. on the tail of the tool (d) This device will be used for striking, chiselling, leveling, digging, cutting, gardening, cleaning, stripping, snow removal, or any other activities involving a percussion tool The present invention is not limited to the embodiments described and shown but the skilled person will be able to make any variant within his mind.

Claims (5)

REVENDICATIONS1- Dispositif de percussion à action manuelle, comprenant un corps (a), dans lequel se déplace un percuteur (b) mu directement ou indirectement par la force de l'operateur, caractérisé en ce que ce dispositif comporte en sa partie avant un mandrin porte outil (c) de type existant ou de conception nouvelle, caractérisé en ce qu'il permet un changement rapide dudit outil, et qu'il autorise à cet outil un déplacement axial sous la force de l'impact lorsque l'extrémité arrière dudit outil (d) est frappée par le percuteur (b).CLAIMS1- Manual action percussion device, comprising a body (a), in which moves a striker (b) mu directly or indirectly by the force of the operator, characterized in that this device comprises in its front part a mandrel tool holder (c) of existing type or new design, characterized in that it allows a quick change of said tool, and that it allows this tool an axial displacement under the force of the impact when the rear end of said tool (d) is struck by the firing pin (b). 2- Dispositif selon la revendication 1 caractérisé en ce que ledit mandrin porte outil (c) caractérisé en ce qu'il permet un changement rapide dudit outil, et qu'il autorise à cet outil un déplacement axial sous la force de l'impact est mécaniquement lié au corps (a) de manière totalement rigide.2- Device according to claim 1 characterized in that said toolholder mandrel (c) characterized in that it allows a rapid change of said tool, and that it allows this tool an axial displacement under the force of the impact is mechanically linked to the body (a) in a completely rigid manner. 3- Dispositif selon la revendication 1 caractérisé en ce que le mandrin porte outil (c) caractérisé en ce qu'il permet un changement rapide dudit outil, et qu'il autorise à cet outil un déplacement axial sous la force de l'impact est mécaniquement lié au corps (a) par l'intermédiaire d'un système d'amortissement axial (e).3- Device according to claim 1 characterized in that the tool mandrel (c) characterized in that it allows a quick change of said tool, and that it allows this tool an axial displacement under the force of the impact is mechanically connected to the body (a) via an axial damping system (e). 4- Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le mandrin porte outil (c) caractérisé en ce qu'il permet un changement rapide dudit outil, et qu'il autorise à cet outil un déplacement axial sous la force de l'impact et le corps (a) sont mécaniquement liés mais restent libres en rotation l'un par rapport à l'autre autour de l'axe du mandrin porte outil (c).4- Device according to any one of the preceding claims characterized in that the tool mandrel (c) characterized in that it allows a rapid change of said tool, and that it allows this tool an axial displacement under the force of the impact and the body (a) are mechanically connected but remain free to rotate relative to each other about the axis of the tool chuck (c). 5- Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le corps (a) du dispositif comprend un élément d'isolation phonique (f) destiné à réduire les émissions sonores dues à l'action de frappe du percuteur sur la queue de l'outil (d).355- Device according to any one of the preceding claims, characterized in that the body (a) of the device comprises a sound insulation element (f) for reducing the noise emission due to the strike action of the firing pin on the tail of the tool (d) .35
FR1202688A 2012-10-02 2012-10-02 Percussion device with manual action for e.g. excavation, has tool chuck provided with SDS type tool that is axially displaced under force of impact when rear end of tool is struck by striker, where chuck is mechanically attached to body Pending FR2996157A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1202688A FR2996157A1 (en) 2012-10-02 2012-10-02 Percussion device with manual action for e.g. excavation, has tool chuck provided with SDS type tool that is axially displaced under force of impact when rear end of tool is struck by striker, where chuck is mechanically attached to body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1202688A FR2996157A1 (en) 2012-10-02 2012-10-02 Percussion device with manual action for e.g. excavation, has tool chuck provided with SDS type tool that is axially displaced under force of impact when rear end of tool is struck by striker, where chuck is mechanically attached to body

Publications (1)

Publication Number Publication Date
FR2996157A1 true FR2996157A1 (en) 2014-04-04

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FR1202688A Pending FR2996157A1 (en) 2012-10-02 2012-10-02 Percussion device with manual action for e.g. excavation, has tool chuck provided with SDS type tool that is axially displaced under force of impact when rear end of tool is struck by striker, where chuck is mechanically attached to body

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FR (1) FR2996157A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202239A (en) * 1963-06-10 1965-08-24 Clarke Ronald Albert William Acoustic shield for a tool powered by a gas-operated motor
US5626199A (en) * 1995-07-05 1997-05-06 T.C. Service Company Pneumatic impact tool having improved vibration and noise attenuation
US20020178870A1 (en) * 1999-03-30 2002-12-05 Lowther John K. Slide hammer
EP1604785A2 (en) * 2004-06-08 2005-12-14 Hitachi Koki Co., Ltd. Striking tool
GB2469743A (en) * 2009-04-22 2010-10-27 Easy Tool Ltd A manual tool handle with impact means and spring for biasing the impact means into an operative position

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202239A (en) * 1963-06-10 1965-08-24 Clarke Ronald Albert William Acoustic shield for a tool powered by a gas-operated motor
US5626199A (en) * 1995-07-05 1997-05-06 T.C. Service Company Pneumatic impact tool having improved vibration and noise attenuation
US20020178870A1 (en) * 1999-03-30 2002-12-05 Lowther John K. Slide hammer
EP1604785A2 (en) * 2004-06-08 2005-12-14 Hitachi Koki Co., Ltd. Striking tool
GB2469743A (en) * 2009-04-22 2010-10-27 Easy Tool Ltd A manual tool handle with impact means and spring for biasing the impact means into an operative position

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