EP0916456B1 - Outil à main électrique - Google Patents

Outil à main électrique Download PDF

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Publication number
EP0916456B1
EP0916456B1 EP99103025A EP99103025A EP0916456B1 EP 0916456 B1 EP0916456 B1 EP 0916456B1 EP 99103025 A EP99103025 A EP 99103025A EP 99103025 A EP99103025 A EP 99103025A EP 0916456 B1 EP0916456 B1 EP 0916456B1
Authority
EP
European Patent Office
Prior art keywords
housing
machine tool
tool according
output shaft
bearing
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
Application number
EP99103025A
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German (de)
English (en)
Other versions
EP0916456A3 (fr
EP0916456A2 (fr
Inventor
Steffen Wuensch
Peter Stierle
Rudolf Fuchs
Joachim Mueller
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0916456A2 publication Critical patent/EP0916456A2/fr
Publication of EP0916456A3 publication Critical patent/EP0916456A3/fr
Application granted granted Critical
Publication of EP0916456B1 publication Critical patent/EP0916456B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles

Definitions

  • the invention is based on an electric hand tool according to the preamble of claim 1.
  • DE-OS 42 35 278 is a generic hand tool known, the file-like insert tool by an eccentric bearing output shaft via a Driver is driven back and forth.
  • the output shaft is powered by an electric motor via an angle gear Movement set, which is about 90 ° relative to the motor shaft angled output shaft no adjustment means for Adjusting the angular gear clearance, i. the play of the output shaft opposite the motor shaft or the axial play the output shaft relative to the housing has.
  • the top End of the output shaft is in the upper part of the gearbox receiving from an axial and radial forces Rolling and the lower end of the shaft in the lower part of the Transmission housing received by a needle bearing.
  • the dividing plane of the housing as before common in manual power tools, in working position vertically and even, wherein at least one bearing point of the output shaft is in the region of the division plane, i. that the Bearing seat is also divided.
  • This can be done by the insert tool transferred to the housing forces to a Deformation of the housing edges in the area of the division plane to lead. This in turn can be the bearing seats of the output shaft deform and thus disrupt the transmission function.
  • the clamping means for the tool, in particular insert tool are externally via operating means in the clamping and release position movable, but also need the movement of the driver and the tool can follow. Thereby are the Clamping means for coupling the insert tool with the driver designed relatively expensive.
  • the electric hand tool according to the invention with the Features of claim 1 has the advantage that the housing is particularly resistant to deformation.
  • the stability of the housing is e.g. increased by the shells and formed by dividing edges Division plane around the neck - in working position considered - run bent down and where the bend serves as a handle.
  • the stiffening of the Housing increases by attacking the operator's hand and as a result of the operating forces when working, causing the Housing shells quasi interlocked and firmly against each other be tense.
  • a simple actuating means is created when the actuating means as, in particular with a coarse thread, axially adjustable in the housing Bushing is configured, and the bearing bush at least one of the undersides of an upper radial collar Ringkeil wears, which is a housing-side counter-ring wedge is assigned as a support surface.
  • the adjusting means is against unintentional adjustment with a Anti-rotation against the housing position safe, wherein the rotation in a particularly simple design an externally toothed clamping ring, the inside with a Two-fold aelleszweiflach on the lower outside the bearing bush facing from the collar or the ring wedge Overlaps side.
  • the detachable arrangement of the rotation on one, in particular tool facing, externally accessible side allows adjustment of the axial play of the output shaft without dismantling the hand tool.
  • the support is simple and inexpensive in that the output shaft via a spring-mounted, axially displaceable Ball bears against the housing and that a compression spring is arranged in the upper housing shell, one on the one side a thorn on the side of the housing, and on the other side one a supporting disk bearing pin engages and over the support disk is supported against the ball, in a frontal recess in the upper end of the output shaft sits and protrudes beyond the edge of the recess.
  • the bearing in the upper housing shell may be imbalanced compensate the output shaft, that a ring-like Sliding bearing for supporting the upper end of the output shaft is arranged, the tread is configured conical.
  • the sliding bearing compensates imbalances of the output shaft especially effective, characterized in that the running surface of the sliding bearing in its upper region over a length of about 2 to 3 mm cylindrical and then down to it in an opening at an angle of about 5 ° conical, about 7 mm long area merges.
  • the conical Opening facilitates the assembly of the power tool the insertion of the output shaft in the plain bearing.
  • the operation can be simple Means, namely via a pushbutton, with which the Carrier is manually displaceable.
  • the tool is in the area of its clamping end in one Longitudinal guide play and friction and thus the drive and the housing of work-related shear forces as well thereby relieving the burden of friction, by the longitudinal guide the flat clamping area engages around the tool and while working against twisting guaranteed.
  • a sealing cap covers the opening of the front area of the Housing, through which the shaft of the tool passes. It serves as a sliding guide and vibration damping for the tool.
  • the tool a transversely to its direction of movement wearing cutting edge, it is particularly premature can be used as a chisel, spatula or the like.
  • the longitudinal guide is securely locked in the housing shell through a box-like profile encompassing this one rear and front for the passage of the insert tool open Recording tunnel.
  • the driver is designed with a connecting rod a head carrying a projection, the unintentional Turning inside the case avoided and a particularly quiet, low-wear running of the hand tool achieved, the head being in the notch of the longitudinal guide vibration damping is performed.
  • the longitudinal guide is immovable as a separate body Interior of the housing arranged as soon as the housing shells are screwed together. This supports the longitudinal guide in the direction of movement of the guided insertion tool against a front wall of one of the housing shells and is characterized captive and play-free but at the same time easily replaceable, held, because the longitudinal guide to light each other lifting the housing shells in the front area can be removed from the housing.
  • the longitudinal guide is a separate body, takes them cassette-like over the shaft of the tool on the housing transmitted bending forces and conducts this large area on the housing further, so that this only low bending and twisting forces is suspended and can be performed in lightweight construction, wherein rolling elements both ends of the guide slot of the longitudinal guide the Wear or friction between the longitudinal guide and reduce the tool, in that there only roll instead of sliding friction is allowed.
  • the tool can be a chisel, scraper, spatula or the like.
  • metal e.g. Be carbide or HSS steel. It is versatile, e.g. to carve, to remove Paint, wallpaper, carpet glue, foam backing, needle felt, PVC, furthermore for cleaning work, e.g. Removing dirt, Adhesive and glue, plaster, gypsum, putty, putty, Paint and silicone residues as well as mortar and concrete residues Lath. After all, this can also be used for underground preparation be carried out, e.g. Screed and Concrete preparation, smoothing of caterpillars and noses, grouting of cracks, removing tile adhesive.
  • the tool has a flat, in the region of the shaft, in particular rectangular, cross-section, in one Longitudinal guide, especially in a flat slot, feasible is and elastic, leaf-spring-like, bending forces when scraping receives. As a result, the tool is against twisting around his Longitudinal axis secured and springs during operation of the scraper between the workpiece and the operator shocks.
  • FIG. 1 shows an exploded view and FIG. 2 a partial longitudinal section of an electric power tool for scraping workpieces, in short as a scraper 10 denotes.
  • Its cylindrical housing 11 is made of two Housing shells 12, 14 formed of plastic, whose edges each form a dividing edge 15, which is a horizontal dividing plane define.
  • the housing 11 has in its rear Area a thickening 30 and in its front area a neck 32 inclined with respect to the housing axis. Between the neck 32 and the thickening 30 is the housing designed as a handle 28.
  • the housing shells 12, 14 are connected by screws 26 with each other.
  • An unillustrated electric cable can on the housing 11th secured by another screw 24 secured with clamp become.
  • a motor 16th arranged with a fan 18, whose drive shaft 19th stored in a ball bearing 20 and with a conical Pinion 22 is rotatably connected.
  • the pinion 22 meshes with one of an output shaft 50 rotatably supported conical ring gear 48, the axis of rotation 36 at right angles to Drive shaft 19 extends.
  • the tool-distant bearing point of the output shaft 50 is made from a ring-like into a cylindrical bearing receptacle 38 the housing shell 12 insertable sliding bearing 40, in particular made of sintered material, a compression spring 42, a support disk 44 and a ball 46, which in a centric Recess 43 in the upper end side of the output shaft 50th is stored.
  • the compression spring 42 engages around the top, i. at one end, one fixed to the housing Mandrel 41 and below, i. in the other, one Support disc 44 bearing pin 44 'and supports via the support plate 44 relative to the ball 42 from, in the centric recess 43 of the output shaft 50 is seated, wherein it protrudes beyond the edge of the recess 43.
  • the plain bearing 40 has a conical or crowned inner tread 47 for receiving the upper bearing end of the output shaft 50.
  • the output shaft 50 may be inclined by a certain amount guided free of play relative to the central axis of the sliding bearing 40 be destroyed without the sliding bearing 40 thereby becomes. This allows the use of grossly tolerated Items for the scraper 10, wherein its function in high quality is assured.
  • the tool-near bearing point of the output shaft 50 is made from a sleeve-like bearing bush 56, a ring disc 54 and a roller bearing or needle roller bearing 58.
  • Eccentric pin 52 with an eccentric axis 53 passes through the Bearing bush 56, wherein its free end from above into a Bore 72 of a connecting rod-like driver 68 engages, the is supported axially down on a push button 76. It can here also other known eccentric drives be used.
  • the distance of the eccentric axis 53 with respect to the axis of rotation 36th determines the eccentricity, with the double eccentricity determines the stroke of the eccentric pin or the driver 69.
  • the driver 68 and the bearing bush 56 are a Anti-rotation 62 and a disc 66 arranged between where a distance-retaining spring means 64 is supported.
  • the formed as adjusting disk or clamping ring against rotation 62 is for positive engagement of the bearing bush 56 educated.
  • the pushbutton 76 closes a dustproof one Opening 60 in the lower housing shell 14 and ends there flush with the housing contour.
  • a transverse wall 13 is in the region of the opening 34 in the upper plastic shell 12th arranged and engages over the outer end face 82 'of Longitudinal guide 82 partially and secures them against unwanted emergence from the opening 34 or against To lose.
  • the shaft 89 of the Tool 88 straight, guided back and forth.
  • the driver 68 engages with a pin Projection 70 rotatable from above into a circular Recess 90 of the clamping end 77 of the shaft 89 of the Tool 88.
  • Figures 2 and 4 show that for low-friction, better Bearing of the eccentric pin 52 of the driver 68 in his Bore 72 for the passage of the eccentric pin 52 a rolling bearing 73, in particular needle roller bearings having.
  • the one with the recess 90 cooperating pins 70 is at a distance arranged axially parallel to the recess 72 and to the rolling bearing 73.
  • Figures 1 to 4 show that the driver 68th guided along the eccentric pin 52 and resiliently axially displaceable is mounted and that the projection 70 of the driver 68 in its axial displacement out of engagement with the recess 90 of the tool 88 can be brought, so that thereby the drive from the tool 88 is separable. is If so, then the tool 88 can easily be hand-operated be removed and changed.
  • the driver 68 is about the fingers of the operator's hand displaceable push button 76 is moved to the release position.
  • the push button 76 is in the housing 11 in the opening 60 - like an engine piston in the cylinder - displaceable in the Housing shell 14 stored, wherein the push button 76 in the same direction as the driver 68, on which it is supported, movable is.
  • the compression spring 64 is supported against the driver 68 from.
  • the Ring disc 66 prevents the reciprocating motion of the driver 68 transmitted to the compression spring 64 becomes.
  • the pushbutton 76 by means of in the interior the housing shell 12 hinged snap hook 75, 79th is secured against falling out.
  • To support against the plunger-like driver 68 carries the push button 76 radial Ribs 8 and 9.
  • the tool 88 is in an area between its one Cutting-carrying working end 92 and its clamping end 77 guided in the longitudinal guide 82.
  • the longitudinal guide 82 is so formed, see also Fig. 9 that they the shallow shaft 89 of the tool 88 surrounds cassette-like and thereby the absorbs bending forces occurring during work, so that no local stresses can occur to the Destruction of the housing shells 12, 14 would lead
  • the longitudinal guide 82 is usable as in the housing 12, 14 Cube or cuboid with a continuous guide slot 67, see Figures 6 and 8, for the passage of Shaft 89 of the tool 88 designed.
  • the longitudinal guide 82 has on its side facing the driver 68 a Notch 83, which in the recess 90 of the Clamping 77 of the tool 88 cross-head 65 of the Mit Economicss 68 centered, in the clamping end 77 of Tool 88 engaging and this entraining projection 70 carries.
  • the longitudinal guide 82 need not be cuboid-shaped, but can also according to need a different outer Have design.
  • FIG. 6, like FIG. 3, shows the upper bearing of the output shaft 50 in the housing 12, 14 as a detail, wherein the Compression spring 42, the central recess 43, the disc 44, the ball 46 and the upper portion of the output shaft 50th are clearly visible.
  • Figures 1 to 7 show that the tool facing Bearing point of the output shaft 50 through which the rolling bearing 58 bearing bushing 56 is formed, which has a like a coarse thread acting ring wedge 57 against a Gegenringkeil 63 (Fig. 10) of the housing shell 14 after the Releasing the anti-rotation lock 62 is axially adjustable and the, - After dismantling the button 76 and the driver 68 -, from outside e.g. for a wrench or the like for twisting is accessible.
  • the bushing 56 could instead of the ring wedge 57 a Steep external threads that fit into a housing-side Mating thread would have to be screwed.
  • the rotation of the bearing bush 56 is externally toothed Clamping ring 62 configured, with two on his Inside arranged teeth 61 in two opposite Grooves 59 on the lower outside of the bearing bush 56 attacks.
  • the clamping ring 62 holds with its external teeth at projections of the housing 11, in particular the housing shell 12, latching firmly against turning by the teeth between cams 67 ( Figure 10) at the bottom of opening 60. He secures the bearing bush 56 against twisting the housing 11th
  • the compression spring 64 is supported, bringing it this axially relative to the bearing bush 56 and against the Housing 11 biases and thus in particular to the cam holds.
  • the clamping ring 62 is connected via an external toothing the housing shell 14 rotatably connected.
  • the tool 88 or 188 exits the covered by a sealing cap 86 opening 34 of the front Area of the housing 11 off.
  • a blade guard 94 can be set, which secures the cutting edge against damage and the operator in particular during transport of Hand tool 10 against injury by the cutting edge protects.
  • a driver 69 is a perforated disk trained - in contrast to the according to the figures 1 to 3 connecting rod designed driver 68.
  • the driver 69 engages an eccentric pin 51 of the output shaft 50 a, which is significantly shorter as the eccentric pin 52 according to the figures 1 to 3. This shorter dimension is necessary because so the eccentric pin 51st itself out of engagement with the recess 91 of the chuck end the insert tool 188 stands, thereby the insert tool 188 transverse to the eccentric pin 51 - about the free end can be pushed past - can be removed.
  • the central bore 72 ' may, of course, as the bore 72nd according to Figures 2 and 4, a needle bearing 73 included to the movement of the eccentric pin 51 friction with the driver 69 and the insert tool 188 to transfer.
  • the slot-like recess 91 is arranged near the free end of the clamping end 77, wherein its longitudinal extent transverse to the direction of movement of the tool 188 runs and at least at the stroke h or around double eccentricity of the eccentric pin 51 is longer than the diameter of the eccentric pin 51.
  • the width of the slot 91 is dimensioned so that the projection 71 substantially can intervene without play.
  • FIG. 8 shows an insert tool 288 suitable for the scraper 10 is suitable according to the figures 1 to 4.
  • the Insert tool 288 has a recess 93 in the clamping end 77th which extends as extending longitudinally to the direction of movement Slot is designed, the width of the outer diameter of the circular cross-section pin 70 tuned is. Its longitudinal extent is around the stroke h resp double eccentricity of the eccentric pin 52 larger than the Outer diameter of the eccentric pin 52. This is when rotating Motor the insert tool 288 only then reciprocating moved or driven, if it is from a frontal Counteracting force is applied, so that the projection 70th supported on the front edge 193 of the recess 90 can.
  • a comparison of the chucking ends 77 of the insert tools 88, 188, 288 according to Figures 1 to 8 shows that the recess 90 of the insert tool 88 farther from the free end of the chuck end 77 removed as the recess 91 of the insert tool 188 and as the recess 93 of the insert tool 288 according to FIGS. 5 and 7.
  • FIG. 9 shows, as an enlargement, the longitudinal guide 82 according to FIG Figure 1.
  • the longitudinal guide 82 carries designed as needles Rolling elements 78 and 84, in front of and behind the rectangular, flat guide slot 67 are arranged and in which the tool 88, 188, 288 can support rolling.
  • the rolling elements 78 and 84 are in corresponding slots 85 of Longitudinal guide 82 stored.
  • the cooperation between the longitudinal guide 82 and the connecting rod-like driver 68 show the figures 1, 2 and 4.
  • the driver 68 has the projection 70 bearing Head part 65, which serves as a guide slot notch 83 of the longitudinal guide 82 rotatably engages. Thereby it is ensured that the head 65 and thus the driver 68 also secured against rotation within the housing 11 then is performed when the scraper 10 does not use a tool 88, 288 is equipped and if in this condition the engine 16 is started.
  • the upper and lower housing shell 12, 14 shown exploded parallel to the axis, wherein the inclined, front-bent course of the dividing edge 15 becomes clear with both housing shells.
  • the upper housing shell shows particularly clearly the mandrel 41 and the concentric bore 45 for receiving the not shown here, but shown in Figures 1 to 3, 5, 6 Compression spring 42, in turn, the pin 44 'with the disc 44 contributes to the axial support on the ball 46 and at the Output shaft 50.
  • a circular, serving as a bearing receptacle 38 recess concentric is arranged to the mandrel 41 and in which the annular Slide bearing 40 can be used.
  • the front is Transverse wall 13 near the opening 34 for the passage of here unillustrated tool 88 particularly clearly visible.
  • the lower housing shell 14 clearly shows the Schmidtringkeil configuration 63, at which the ring wedge 57 on the collar 55 of the Bearing bush 56 is supported, so that when turning the bearing bush 56 contrary to the Uhreigersinn this moves axially.
  • the output shaft 50 according to the figures 1, 2 and 5 axially supported on the bearing bush, it is when turning the bearing bush 56 taken axially, so that thereby setting the axial play of the output shaft 50 relative to the upper housing shell 12 and against the ball 46, the Washer 44 and the mandrel 41 is possible.
  • a Ring groove 25 for holding the sealing cap 86 (FIG. 1) recognizable and a receiving tunnel 33 with an insertion opening 35 for insertion and for holding the not shown here Longitudinal guide 82, located at the ribs 37 39 clamped free of play. Also recognizable is the opening 60 for Guide and recording of the push button 76 (Fig. 1).
  • the adjusting means in the form of the bearing bush 56 could also instead of in the lower housing shell 14 in the upper housing shell 12 may be arranged, in which case instead of the needle bearing 73, the slide bearing 40 sitting in the bearing bush 56 could.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Jigs For Machine Tools (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (21)

  1. Machine-outil à main électrique avec un boítier (11) formé de deux coquilles longitudinales (12, 14) et logeant un moteur (16) et un renvoi d'angle avec un arbre de sortie (50) monté par ses deux extrémités,
    caractérisée en ce que
    le boítier (11) est constitué de deux coquilles de palier (12, 14) assemblées le long d'un plan de séparation horizontal en position de travail, l'arbre de sortie (50) étant monté en rotation dans deux paliers (40), logés chacun dans une des coquilles (12, 14).
  2. Machine-outil à main électrique selon la revendication 1,
    caractérisée en ce que
    le boítier (11) avec ses deux coquilles de boítier (12, 14) et le plan de séparation formé par des arêtes de séparation (15), notamment au niveau du col (32), sont, en position de travail, cintrés vers le bas en forme de s.
  3. Machine-outil à main électrique selon la revendication 2,
    caractérisée en ce que
    l'arbre de sortie (50) comprend sur son extrémité de sortie un tourillon excentré (51, 52) ou similaire et peut être équipé d'un outil inséré (88, 188, 288) accouplé au tourillon excentré (51, 52) et mobile en va-et-vient en ayant une extrémité de fixation (77) maintenue dans le boítier (11), un organe d'entraínement (68, 69) monté entre l'outil (88, 188, 288) et le tourillon excentré (51, 52) présente un perçage (72, 72') dans lequel pénètre libre en rotation le tourillon (51, 52), et
    un palier (58) de l'arbre de sortie (50), de préférence celui situé du côté de l'outil, coopère avec au moins un moyen de réglage (56) axial de l'arbre de sortie par rapport au boítier (11).
  4. Machine-outil à main électrique selon la revendication 3,
    caractérisée en ce que
    le moyen de réglage (56) est constitué par une douille de palier (56) mobile axialement dans le boítier (11) et comportant un filetage à pas rapide (57, 63).
  5. Machine-outil à main électrique selon la revendication 4,
    caractérisée en ce que
    la douille de palier (56) porte, sur la face inférieure d'un collet radial supérieur (55), en tant que filetage à pas rapide, au moins une rampe annulaire (57) à laquelle est associée une contrerampe (63) portée par le boítier et servant de surface d'appui.
  6. Machine-outil à main électrique selon la revendication 4 ou 5,
    caractérisée en ce que
    la douille de palier 56 peut être sécurisée en position par rapport au boítier (11) au moyen d'un blocage en rotation (62).
  7. Machine-outil à main électrique selon la revendication 6,
    caractérisée en ce que
    le blocage en rotation est réalisé sous la forme d'une bague de serrage (62) à denture extérieure qui vient en prise bloquée, en particulier avec au moins une dent intérieure (61) située dans au moins une rainure (59) se trouvant sur la face externe inférieure de la douille de palier (56), qui elle-même déborde au-delà du côté tourné vers la rampe annulaire (57).
  8. Machine-outil à main électrique selon la revendication 7,
    caractérisée en ce que
    la bague de serrage se bloque par accrochage de sa denture extérieure sur des saillies du boítier (11), notamment sur des ergots (67), situées au fond de l'ouverture (60) de la coquille de boítier (12).
  9. Machine-outil à main électrique selon la revendication 8,
    caractérisée en ce qu'
    un ressort de compression (64) s'appuie sur la bague de serrage (62) en maintenant celle-ci par rapport à la douille de palier (56) et par rapport au boítier (11).
  10. Machine-outil à main électrique selon une des revendications 6 à 9,
    caractérisée en ce que
    le blocage en rotation (62) est monté en étant amovible par rapport à sa position de maintien, sur un côté du boítier (11) accessible de l'extérieur, notamment du côté de l'outil.
  11. Machine-outil à main électrique selon une des revendications 8 à 10,
    caractérisée en ce qu'
    un bouton-poussoir (76) servant à desserrer l'outil monté (88) s'appuie sur le ressort de compression (64), de sorte que celui-ci sert également de ressort de rappel pour l'organe d'entraínement (68) et pour le bouton-poussoir (76) qui ainsi ne peut s'échapper de la machine (10).
  12. Machine-outil à main électrique selon une des revendications 1 à 11,
    caractérisée en ce que
    l'arbre d'entraínement (50) est en appui élastique axial sur le boítier (11), du côté éloigné de l'outil.
  13. Outil à main électrique selon la revendication 11,
    caractérisé en ce que
    l'arbre de sortie (50) s'appuie sur le boítier (11) par une bille (46) pouvant coulisser axialement et montée élastiquement.
  14. Machine-outil à main électrique selon la revendication 13,
    caractérisée en ce que
    dans la coquille supérieure de boítier (12) est monté un ressort de compression (42) qui entoure par une extrémité une broche (41) prévue du côté du boítier, et par l'autre extrémité un téton (44') portant une rondelle d'appui (44) par laquelle il s'appuie sur la bille qui, elle-même est logée dans une cavité frontale (43) située à l'extrémité supérieure, éloignée de l'outil, de l'arbre de sortie et dépasse le bord de la cavité (43).
  15. Machine-outil à main électrique selon la revendication 14,
    caractérisée en ce que
    dans la coquille supérieure de boítier (12) est prévu, pour recevoir l'extrémité supérieure de l'arbre de sortie (50), un palier lisse annulaire (40) dont la surface de glissement (47) est conique au moins localement, pour compenser les positions inclinées de l'arbre de sortie (50) par rapport à l'axe géométrique du palier lisse (40).
  16. Machine-outil à main électrique selon la revendication 14,
    caractérisée en ce que
    la surface de glissement (47) du palier lisse (40) présente, dans sa zone supérieure (47") de préférence une forme cylindrique sur une longueur de 2 à 3 mm environ, et ensuite s'élargit vers le bas selon un cône dont l'angle est d'environ 5° et qui s'étend sur une zone (47') de préférence d'environ 7 mm.
  17. Machine-outil à main électrique selon une des revendications 3 à 16,
    caractérisée en ce que
    l'organe d'entraínement (68, 69), par coulissement sous l'action d'un bouton-poussoir (76, 176), peut être dégagé de l'outil utilisé (68, 188, 288), de sorte que celui-ci est séparé de l'entraínement et peut ainsi être retiré facilement.
  18. Machine-outil à main électrique selon une des revendications 3 à 17,
    caractérisée en ce que
    l'outil utilisé (88, 188, 288) peut coulisser axialement dans un guidage longitudinal (82) du boítier (11) et son extrémité de serrage (77), plate, est entourée avec un faible jeu par des éléments de guidage (82).
  19. Machine-outil à main électrique selon une des revendications 3 à 18,
    caractérisée en ce que
    l'outil utilisé (88, 188, 288) dépasse d'une ouverture (34) située dans la zone avant du boítier (11) et recouverte par un capuchon d'étanchéité (86) qui s'appuie notamment de manière étanche sur l'outil (88, 188, 288).
  20. Machine-outil à main électrique selon une des revendications 3 à 19,
    caractérisée en ce que
    l'outil utilisé (88, 188, 288) présente une arête transversale à sa direction de mouvement et servant de ciseaux, de couteau ou de moyens analogues.
  21. Machine-outil à main électrique selon une des revendications 3 à 20,
    caractérisée en ce que
    l'une des coquilles du boítier (12, 14) présente un profil en forme de caisson entourant un guidage longitudinal (82) avec un tunnel de réception (33) ouvert vers l'arrière et vers l'avant pour le passage de l'outil utilisé (88, 188, 288).
EP99103025A 1995-12-19 1996-10-26 Outil à main électrique Expired - Lifetime EP0916456B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19547332 1995-12-19
DE19547332A DE19547332A1 (de) 1995-12-19 1995-12-19 Elektrohandwerkzeugmaschine
EP96934436A EP0868256B1 (fr) 1995-12-19 1996-10-26 Machine-outil electrique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP96934436A Division EP0868256B1 (fr) 1995-12-19 1996-10-26 Machine-outil electrique

Publications (3)

Publication Number Publication Date
EP0916456A2 EP0916456A2 (fr) 1999-05-19
EP0916456A3 EP0916456A3 (fr) 2002-09-25
EP0916456B1 true EP0916456B1 (fr) 2005-06-08

Family

ID=7780506

Family Applications (2)

Application Number Title Priority Date Filing Date
EP96934436A Expired - Lifetime EP0868256B1 (fr) 1995-12-19 1996-10-26 Machine-outil electrique
EP99103025A Expired - Lifetime EP0916456B1 (fr) 1995-12-19 1996-10-26 Outil à main électrique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP96934436A Expired - Lifetime EP0868256B1 (fr) 1995-12-19 1996-10-26 Machine-outil electrique

Country Status (5)

Country Link
EP (2) EP0868256B1 (fr)
JP (1) JP2000501029A (fr)
CN (1) CN1112982C (fr)
DE (3) DE19547332A1 (fr)
WO (1) WO1997022437A1 (fr)

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DE19844806B4 (de) * 1998-09-30 2010-10-14 Robert Bosch Gmbh Handwerkzeugmaschine, insbesondere Schnursäge
DE19938162A1 (de) * 1999-08-16 2001-03-01 Bosch Gmbh Robert Handwerkzeugmaschinensystem
DE19938161A1 (de) * 1999-08-16 2001-03-01 Bosch Gmbh Robert Handwerkzeugmaschine
DE19938175B4 (de) * 1999-08-16 2005-08-11 Robert Bosch Gmbh Handwerkzeugmaschine mit einem Führungslager für ein Einsatzwerkzeug
DE19938176A1 (de) * 1999-08-16 2001-03-08 Bosch Gmbh Robert Handwerkzeugmaschine
DE19939171A1 (de) * 1999-08-20 2001-03-08 Bosch Gmbh Robert Handwerkzeugmaschine
DE20019375U1 (de) * 2000-11-15 2001-03-01 Scintilla Ag Werkzeughalter
DE10058894A1 (de) 2000-11-23 2002-06-06 C & E Fein Gmbh & Co Kg Werkzeug mit einem Halter zur Befestigung an einer Antriebswelle
US7980325B2 (en) * 2004-01-16 2011-07-19 Credo Technology Corporation Rotating shaft locking mechanism
CN201061862Y (zh) * 2007-06-25 2008-05-21 南京德朔实业有限公司 一种电动磨削工具
US20090272556A1 (en) * 2008-05-05 2009-11-05 Ingersoll-Rand Company Angle head and bevel gear for tool
JP2010155291A (ja) * 2008-12-26 2010-07-15 Makita Corp 電動工具
DE102010041938A1 (de) * 2010-10-04 2012-04-05 Robert Bosch Gmbh Materialverteilungseinheit
WO2012045679A2 (fr) * 2010-10-04 2012-04-12 Robert Bosch Gmbh Machine-outil portative à oscillation
DE102010064363B4 (de) * 2010-12-30 2021-12-16 Robert Bosch Gmbh Handwerkzeugmaschinenspannvorrichtung mit Verdrehsicherung
WO2014036003A1 (fr) * 2012-08-27 2014-03-06 Ingersoll-Rand Company Structure de boîtier d'outil électrique
DE102013223819A1 (de) * 2013-11-21 2015-05-21 Robert Bosch Gmbh Handwerkzeugmaschinengehäusevorrichtung
CN103894672B (zh) * 2014-03-28 2017-01-11 潘杭 一种板材竖直矩形槽开槽机
CN106424933B (zh) * 2015-08-06 2018-06-19 南京德朔实业有限公司 往复锯
CN105855917B (zh) * 2016-06-06 2018-01-05 石狮市川朗机械设计有限公司 一种带加工头且能往复运动的加工机构
CN106424932B (zh) * 2016-11-17 2018-06-29 湖州峰霞五金贸易有限公司 一种受力平衡手锯
CN106346363B (zh) * 2016-11-18 2018-05-01 常州市武进大成工贸有限公司 雕磨机
CN108000360B (zh) * 2017-12-29 2024-03-15 宁波浙达技术服务有限公司 一种气动式打磨机
WO2019152367A1 (fr) 2018-01-31 2019-08-08 Milwaukee Electric Tool Corporation Scie alternative
CN108406478A (zh) * 2018-02-08 2018-08-17 浙江意达电器有限公司 高密封性高稳定性角向磨光机及其磨光方法
US11691261B2 (en) * 2020-06-02 2023-07-04 Snap-On Incorporated Housing clamp for a power tool
CN111791194A (zh) * 2020-06-30 2020-10-20 浙江动一新能源动力科技股份有限公司 一种电动工具壳体及电动工具
CN112353347B (zh) * 2020-11-03 2023-01-03 青岛海泰新光科技股份有限公司 一种摄像手柄的楔形锁紧密封结构

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Also Published As

Publication number Publication date
EP0916456A3 (fr) 2002-09-25
EP0868256B1 (fr) 2002-10-16
DE19547332A1 (de) 1997-06-26
EP0868256A1 (fr) 1998-10-07
EP0916456A2 (fr) 1999-05-19
DE59609803D1 (de) 2002-11-21
JP2000501029A (ja) 2000-02-02
CN1112982C (zh) 2003-07-02
CN1205664A (zh) 1999-01-20
DE59611234D1 (de) 2005-07-14
WO1997022437A1 (fr) 1997-06-26

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