EP1537948B1 - Portable power tool - Google Patents

Portable power tool Download PDF

Info

Publication number
EP1537948B1
EP1537948B1 EP05002993A EP05002993A EP1537948B1 EP 1537948 B1 EP1537948 B1 EP 1537948B1 EP 05002993 A EP05002993 A EP 05002993A EP 05002993 A EP05002993 A EP 05002993A EP 1537948 B1 EP1537948 B1 EP 1537948B1
Authority
EP
European Patent Office
Prior art keywords
hand tool
characterized
tool according
powered hand
gearbox
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 - Fee Related
Application number
EP05002993A
Other languages
German (de)
French (fr)
Other versions
EP1537948A1 (en
Inventor
Steffen WÜNSCH
Peter Stierle
Gerd Berner
Justus Lamprecht
Monika Renner
Julian Pfaundler
Uwe Engelfried
Joachim Müller
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
Priority to DE1999138176 priority Critical patent/DE19938176A1/en
Priority to DE19938176 priority
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to EP20000115532 priority patent/EP1077106B1/en
Publication of EP1537948A1 publication Critical patent/EP1537948A1/en
Application granted granted Critical
Publication of EP1537948B1 publication Critical patent/EP1537948B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02Construction of casings, bodies or handles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/005Auxiliary devices used in connection with portable grinding machines, e.g. holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Description

    State of the art
  • The invention relates to a hand tool according to the preamble of claim 1.
  • From DE 195 47 332 A1 discloses a generic type hand tool is known, the cylindrical housing consists of two plastic housing shells whose edges each form a dividing edge, which define a horizontal plane of division. The housing shells are connected by screws. Inside the housing, a motor is arranged with a fan, the drive shaft is mounted on a ball bearing in the housing shells and rotatably connected to a tapered pinion. The pinion meshes with one of an output shaft rotatably supported conical ring gear whose axis of rotation is perpendicular to the drive shaft.
  • The output shaft has a tool-remote bearing point, which has a ring-like plain bearing, which in a cylindrical Bearing receiving a housing shell is used. Furthermore, the output shaft has a tool-near bearing point, which has a sleeve-like bearing bush with a needle bearing.
  • An eccentric pin carried by the tool-near end of the output shaft protrudes through the bearing bush from above into a bore of a connecting rod-like driver, which engages with a projection in a recess of an insert tool which is mounted on a guide bearing in the front region of the housing shells.
  • Advantages of the invention
  • The invention relates to a hand tool with a housing having at least a first and a second, longitudinally extending housing shell in which a motor is mounted, which is coupled via a drive shaft with a transmission, via an output shaft with an insertion tool is in active connection.
  • It is proposed that the transmission is arranged in a gear housing with at least one sleeve, in which a pin of the first housing shell and a pin of the second housing shell are at least positively and preferably non-positively inserted.
  • In addition to a particularly advantageous absorption of bearing forces in the gear housing, a particularly dimensionally stable hand tool machine can be achieved and a gaping of the housing shells can be avoided during heavy use. The inventive Solution can be used in all hand-held power tools with transmission housings that appear to be suitable for a person skilled in the art and, in particular, in a hand-held power tool with an angle drive.
  • The housing shells are advantageously joined together in a horizontal working position in a horizontal dividing plane. A housing shell can be used as a mounting shell, the assembly can be simplified and the dimensional stability can be increased. Furthermore, it can be avoided that a user with large holding forces in the region of the division plane must act on the hand tool, whereby, for example, with a so-called soft grip a particularly comfortable gripping can be achieved. In principle, however, the housing shells can also be joined together in a vertical dividing plane or else in other graduation planes.
  • The pins are advantageously formed by screw domes. Additional components can be avoided or no additional parts must be molded to the housing shells. In one embodiment of the invention it is proposed to form pinch ribs on the pin. In particular, plastic housing shells can thereby advantageously adapted to a metal gear housing, tolerances can be compensated and it can be achieved a particularly secure connection. The crush ribs can be easily molded to the plastic pins and are preferably about 0.2 mm high.
  • The sleeve can be fixed non-positively, positively and / or cohesively on the transmission housing, but is advantageous molded to the transmission housing. In order to avoid a subsequent machining and to increase the adhesion, the sleeve is designed with a double inner cone, in which the pins are plugged with correspondingly shaped counter-outer cone.
  • It is also proposed that the motor is operatively connected via the drive shaft with a bevel gear, which has a stored output shaft which is operatively connected via an eccentric and a driving element with a reciprocally movable insert tool, wherein the angle gear arranged in a separate gear housing is. The gear housing can advantageously be made of a material, in particular bearing loads, adapted material, and particularly advantageous from a metal, such as in particular die-cast aluminum. However, it is also possible to produce the gear housing from a particularly durable plastic.
  • Furthermore, in addition to absorbing bearing forces, the gear housing can advantageously be used to form particularly stressed areas of the housing, in particular in the front region of the handheld power tool. The hand tool can be performed by a plastic housing easily and by an aluminum front or aluminum snout particularly resilient, on the heat also particularly advantageous from the power tool delivered to the environment and a required cooling capacity can be kept small.
  • In one embodiment of the invention it is proposed that a cover of the transmission housing in the front, lower area forms a part of the housing. The front, lower region of the hand tool is usually heavily loaded during operation, in particular in hand tool machines, which are bent down in the front region and thus are guided close to the surface to be machined. The gear housing cover can be made of a particularly durable material, such as aluminum die casting in particular, and also can be realized by the lid a particularly simple and inexpensive installation. In addition, the rear part of the housing can advantageously be designed to be detachable independently of the cover, whereby, for example, when replacing coals of the engine, power lines or grommets disassembly of the front portion and the insert tool can be avoided. In order to connect the lid as safely as possible to the hand tool with little additional effort, advantageously used by casting a housing shell pins used to make a positive connection and possibly a positive connection between the lid and housing shell. In the transmission housing many bearings are preferably integrated, in particular bearings for the drive shaft, the output shaft and / or for the insert tool. The bearings can be made to each other particularly precise position and after the manufacture, in particular after the casting of the gear housing, be reworked in one setting. Misalignment can be avoided, wear can be reduced and life can be increased. Furthermore, large bearing forces, in particular in a guide bearing of the insert tool can be advantageously supported in the gear housing, which can be produced from a particularly resilient material. To use as few additional fasteners a secure connection between the To achieve guide bearing and the gear housing, it is proposed that at least a portion of the gear housing and at least a portion of the guide bearing interlock with each other, for example, can engage the guide bearing molded pins in openings of the gear housing and / or it can be formed on the gear housing pin in openings of the guide camp.
  • A bearing of the drive shaft is advantageously used in a cup-shaped recess in the transmission housing. Different thermal expansions by different materials can be avoided and thereby caused tilting of the drive shaft can be prevented. In one embodiment, it is proposed that the bearing of the drive shaft is supported over a part of its length in the radial direction via a sliding seat directly in the gear housing and over part of its length in the radial direction via a plastic ring in the gear housing, preferably over about 1 / 3 of its length over the sliding seat and about 2/3 on the plastic ring or a rubber ring. The drive shaft is securely fixed by the sliding seat and can also be damped advantageous over the rubber ring in the bearing or vibrations and shocks can be compensated by the rubber ring. Further, an outer ring of the bearing through the plastic ring or rubber ring, which can compensate for tolerances of the sliding seat, are fixed radially and rotationally fixed by a clamp. In the axial direction, the drive shaft bearing is advantageously fixed via a housing part, whereby additional components, space, installation costs and costs can be saved. Retaining elements can be simple and inexpensive be molded to screw dome of the housing, which often protrude into the interior of the housing.
  • In addition to at least one radial bearing point of the output shaft, at least one adjusting means is advantageously mounted in the gearbox housing, via which the output shaft is axially adjustable relative to the gearbox housing and the gear play is adjustable. The adjusting means can be guided in particular positional accuracy to the output shaft and in particular to the first radial bearing point. In a further embodiment of the invention, the adjusting means is designed as a bearing bush, in which a second bearing of the output shaft is used. Additional components can be avoided and weight, space, installation costs and costs can be reduced. Furthermore, the output shaft can be stored radially and axially particularly precise.
  • The adjusting means can act on the output shaft via various adjusting mechanisms which appear to be suitable to a person skilled in the art and fastened to the gearbox by means of various devices, for example via a thread etc. However, the adjusting means particularly advantageously has at least one annular wedge on an axial surface, to which a housing-side counterpart Ring wedge is assigned as support surface. The adjusting means is preferably pressed with the ring wedge against the counter-ring wedge on at least two screws acting on their screw heads each on a clamping surface of the actuating means and on a bearing surface of the gear housing, wherein the clamping surface moves with increasing ring wedge in the axial direction and thereby the Adjusting path compensates. Due to the screws can advantageously the gear housing cover be mounted independently of the actuating means. A push button, acted on in the region of the output shaft on the driving element and the insert tool can be released from its locking connection can advantageously already before the assembly of the lid inserted into this and a subsequent insertion of the push button can be avoided. The assembly can be simplified and elastic locking means, in particular on the push button, can be saved.
  • By the bearing surfaces on the gear housing can be avoided that the screws tilted when adjusting the actuating means and the threads are destroyed. In order to be able to use the bearing surfaces in all adjusting positions, the clamping surface advantageously compensates for the adjusting movement, so that the screw heads can always act on the bearing surfaces and on the clamping surface in the setting positions. The clamping surface is preferably designed step-shaped, whereby flat bearing surfaces for the screw heads can be achieved.
  • In order to avoid a rotation of the actuating means, the adjusting means is fixed in the circumferential direction with an anti-rotation device, which is preferably formed on the actuating means. Additional components can be avoided.
  • In one embodiment, the adjusting means is further used to seal the gear housing to the outside by a groove for a seal is introduced in the region of a bearing surface of the actuating means in the gear housing and / or in the actuating means.
  • As an alternative to the screws, the adjusting means can advantageously be pressed against the gearbox housing via a disc spring or fixed axially thereon. The plate spring is preferably connected in the circumferential direction in a form-fitting manner via a first toothing with the adjusting means and via a second toothing with an adjacent component, e.g. with the bearing cap or gear housing cover, which structurally simple anti-rotation of the actuating means during operation and adjustment in the circumferential direction can be achieved.
  • In addition to the housing shells of the gear housing cover is advantageously inserted with at least one pin in a sleeve and thus can be attached very securely and contribute to the dimensional stability.
  • drawing
  • Further advantages emerge from the following description of the drawing. In the drawing, an embodiment of the invention is shown.
  • Show it:
  • Fig. 1
    a longitudinal section through a hand tool according to the invention,
    Fig. 2
    an open hand tool according to Fig. 1 from below,
    Fig. 3
    an enlarged detail III of FIG. 1 with a mounted insert tool,
    Fig. 4
    1 shows a detail of the front region of a hand-held power tool according to FIG. 1 before the assembly of an upper housing shell;
    Fig. 5
    a section of the front portion of FIG. 4 after mounting the upper housing shell,
    Fig. 6
    a gear housing obliquely from below,
    Fig. 7
    a section through a sleeve during assembly,
    Fig. 8
    a guide bearing diagonally from above,
    Fig. 9
    an adjusting means diagonally from below and
    Fig. 10
    an adjusting means diagonally from above.
    Description of the embodiment
  • Fig. 1 shows a longitudinal section through a hand tool according to the invention for scraping processing of surfaces, referred to as scraper. The hand tool has a motor 10 arranged in a housing 12, which is electrically supplied via electric cable 100 and switched on and off via a switch 102. The electric motor 12 is operatively connected via a drive shaft 14 with a fan 104 and with an angle gear 16, namely on the drive shaft 14, a pinion 106 is fixed, which meshes with a driven shaft 18 of a driven gear 108 whose axis of rotation perpendicular to the drive shaft 14th runs. At the downwardly facing end of the output shaft 18, an eccentric pin 20 is formed, which engages in a connecting rod-like driving element 22 and an integrally formed pin 114 in a slot 116 of an insert tool 112 (FIGS. 2 and 3). The eccentric pin 20 is mounted via a roller bearing 134 in the driving element 22. Through the slot 116, the motion is transmitted from the drive shaft 14 via the driving element 22 on the insert tool 112 only when the insert tool 112 is placed on a work surface and pushed back so far that the pin 114 is supported on the edge of the slot 116 and so his back - And heroning movement on the insert tool 112 can transmit. At idle, the insert tool 112 is stationary when the drive shaft 14 rotates, so that the wear on the movement-transmitting parts is reduced. Injuries due to a moving insert tool 112 are avoided. Furthermore, the idle running tool 112 can be selectively placed at a desired location on the surface to be machined.
  • According to the invention, the angle gear 16 is arranged in a separate gear housing 24 made of diecast aluminum, which forms a second part of the housing 10 or outer walls of the power tool in a front, upper portion 26 a first part and a cover 28 in the front, lower portion 26.
  • In the gear housing 24 more bearings are integrated. The drive shaft 14 of the electric motor 12 is connected to a first end facing away from the insert tool 112 via a bearing 118 and via a component 120 in a first upper plastic housing shell 78 stored. A second, the insert tool 112 facing the end of the drive shaft 14 is mounted via a bearing 32 in a cup-shaped recess 34 in the gear housing 24. The bearing 32 is supported in the radial direction about 1/3 of its length via a sliding seat 36 directly in the gear housing 24 and about 2/3 of its length in the radial direction via a rubber ring 38 in the gear housing 24. In the axial direction, the bearing 32 is fixed via a retaining rib 40 in the cup-shaped recess 34, which is integrally formed on a screw dome of the upper housing shell 78 and slides during assembly in front of the cup-shaped recess 34 (FIGS. 4 and 5).
  • Furthermore, the output shaft 18 is mounted at its upper end facing away from the insert tool 112 with a first bearing 30 directly and at its second end facing the insert tool 112 with a second bearing 46 via a trained as adjusting means 44 bearing bush in the gear housing 24.
  • The adjusting means 44 is mounted via a bearing surface 70 in a cylindrical recess 142 in the transmission housing 24 (FIGS. 1, 4, 5, 6, 9 and 10). On a side facing away from the insert 112 axial surface 48 of an integrally formed collar 122, the adjusting means 44 has a ring wedge 50, which is associated with a housing-side counter-ring wedge 52 as a support surface. The ring wedge 50 is pressed by two screws 54, 56 against the counter-ring wedge 52 which act via their screw heads 58, 60 respectively on a clamping surface 62 of the actuating means 44 and bearing surfaces 64 of the gear housing 24, which are formed by webs. In order to avoid a 180 ° twisted mounting of the actuating means 44, the swept angle 144 from the first screw 54 to the second screw 56 and from a first screw dome 146 to a second screw dome 148 not equal to 180 ° (FIGS. 2 and 6).
  • The clamping surface 62 moves with increasing ring wedge 50 in the axial direction and thereby compensates for the adjustment. The screw heads 58, 60 always act on the clamping surface 62 and on the support surfaces 64 in the setting positions. The clamping surface 62 is formed by steps 66 which run parallel to bearing surfaces of the screw heads 58, 60 in the setting positions.
  • By loosening the screws 54, 56 and by rotating the actuating means 44, the output shaft 18 can be adjusted axially and thereby the gear play can be adjusted. In order to avoid undesired rotation during operation, an anti-rotation device 68 is integrally formed on the collar 122 of the actuating means 44, in the form of indentations which, when the screws 54, 56 are completely screwed in, enclose them positively in the adjustment direction. In order to achieve a good guidance of the actuating means 44 and to avoid tilting, a recess 72 is made in the gear housing 24 in the region of the collar 122. Furthermore, in the area of the bearing surface 70, a not-shown groove for a seal in the adjusting means 44 and / or in the gear housing 24 may be introduced to further improve a good already by the long bearing surface 70 sealing effect and to avoid lubricants penetrate the transmission housing 24 to the outside.
  • In addition, a U-shaped guide bearing 42 for the insert tool 112 is fastened to the gear housing 24 in the front region 26 by means of a screw 124 (FIGS. 3 and 8). In the mounted state, pins 150, 152 integrally formed on the gear housing 24 engage in a form-fitting manner in recesses 156, 158 of a cover side 154 of the guide bearing 42 (FIGS. 6 and 8). The guide bearing 42, which is produced from a hardened steel sheet in a stamping and bending process, is supported on the transmission housing 24 by end faces 160 of its legs. The guide bearing 42 is thereby positively positive and non-positively connected to the gear housing 24 and a post-processing of the bearing surfaces or bearing surfaces 160 of the guide bearing 42 after the punching and bending process can be avoided. Between the legs of the U-shaped guide bearing 42, the driving element 22 is also guided against rotation (Fig. 2).
  • The insert tool 112 is slidably mounted in the guide bearing 42 by four designed as needles rolling elements 126 in the longitudinal direction, which are guided in slots 128 and held captive over a retaining plate 162 before mounting the guide bearing 42 on the gear housing 24. The retaining plate 162 can be latched into the U-shaped guide bearing 42 with integrally formed projections 164 in recesses 74.
  • In the direction of the work area, the power tool is sealed by a protective cap 130 with a felt seal 132, which is positively inserted between the gear housing 24 and the cover 28, namely the gear housing 24 and the cover 28 engage between two circumferential beads of the protective cap 130th Die Schutzkappe 130 is special easy to assemble and particularly tear-resistant connected to the power tool. The insert tool 112 protrudes through the protective cap 130 to the outside. The protective cap 130 is protected from wear or abrasion on the surface to be processed by the cover 28 and by the gear housing 24.
  • To replace the insert tool 112, the entrainment element 22 can be displaced by a pushbutton 110 along the eccentric pin 20 against a compression spring 136, which is supported in an indentation 138 on the adjustment means 44. The bolt 114 shifts from the slot 116 of the insert tool 112, which can be removed without tools and an alternative insert tool can be used.
  • The housing 10 has in addition to the first upper housing shell 78, a second lower plastic housing shell 80, which are assembled in a horizontal working position in a horizontal dividing plane 140 (Fig. 2). Four sleeves 82, 84, 86, 88 are integrally formed on the gear housing 24, into which four pins 90 of the upper housing shell 78 are positively and positively inserted from above (FIGS. 2, 6 and 7). Further, two pins 92 facing away from the lower housing shell 80 and into the two, the insert tool 112 facing sleeves 86, 88 two pins of the cover 28 form-fitting and frictionally inserted from below into the two, the insert tool 112 facing sleeves 82, 84. The pins 90, 92 of the housing shells 78, 80 and the pins of the cover 28 are formed by screw domes over which the housing shells 78, 80, the cover 28 and the gear housing 24 are screwed together via screws not shown. The housing shell 80 In addition, it engages in a form-fitting manner via two pins 76 formed at sprue locations in two openings (not shown) of the cover 28.
  • In order to avoid a subsequent machining and to increase the adhesion, the sleeves 82, 84, 86, 88 are each carried out with a double inner cone 98, in which the pins 90, 92 of the housing shells 78, 80 and the pins of the lid 28 with correspondingly shaped Counter-outer cones 96 are plugged. Furthermore, pinch ribs 94 are integrally formed on the pins 90, 92, whereby the pins 90, 92 to the sleeves 82, 84, 86, 88 can adjust and a particularly advantageous Kraftund positive engagement can be achieved.
  • reference numeral
  • 10
    casing
    12
    engine
    14
    drive shaft
    16
    angle gear
    18
    output shaft
    20
    eccentric
    22
    driving element
    24
    gearbox
    26
    Area
    28
    cover
    30
    camp
    32
    camp
    34
    recess
    36
    sliding seat
    38
    Plastic ring
    40
    housing part
    42
    guide bearing
    44
    actuating means
    46
    camp
    48
    area
    50
    annular wedge
    52
    Mating annular wedge
    54
    screw
    56
    screw
    58
    screw head
    60
    screw head
    62
    clamping surface
    64
    bearing surface
    66
    step
    68
    twist
    70
    storage area
    72
    puncture
    74
    recess
    76
    spigot
    78
    shell
    80
    shell
    82
    shell
    84
    shell
    86
    shell
    88
    shell
    90
    spigot
    92
    spigot
    94
    squeezing
    96
    outer cone
    98
    Against double inner cone
    100
    electric cable
    102
    switch
    104
    fan
    106
    pinion
    108
    crown
    110
    pushbutton
    112
    application tool
    114
    bolt
    116
    Long hole
    118
    camp
    120
    component
    122
    Federation
    124
    screw
    126
    rolling elements
    128
    hole
    130
    protective cap
    132
    felt seal
    134
    roller bearing
    136
    compression spring
    138
    indentation
    140
    parting plane
    142
    recess
    144
    angle
    146
    screw dome
    148
    screw dome
    150
    part
    152
    part
    154
    part
    156
    recess
    158
    recess
    160
    front
    162
    Halteblech
    164
    head Start

Claims (27)

  1. Powered hand tool having a housing (10), which has at least one first and one second housing shell (78, 80) extending in the longitudinal direction, in which is mounted a motor (12) which is coupled via a drive shaft (14) to a gearing (16) which is operatively connected via an output shaft (18) to an insert tool (112), characterized in that the gearing (16) is arranged in a gearbox (24) with at least one sleeve (82, 84, 86, 88), into which a pin (90) of the first housing shell (78) and a pin (92) of the second housing shell (80) are inserted at least in a positive-locking manner.
  2. Powered hand tool according to Claim 1, characterized in that the first and the second housing shell (78, 80) are joined together in a horizontal parting plane (140) in a horizontal working position.
  3. Powered hand tool according to Claim 2, characterized in that the pins (90, 92) are formed by screw domes.
  4. Powered hand tool according to Claim 2 or 3, characterized in that crush ribs (94) are integrally formed at least on one pin (90, 92).
  5. Powered hand tool according to one of the preceding claims, characterized in that the sleeve (82, 84, 86, 88) is integrally formed on the gearbox (24).
  6. Powered hand tool according to Claim 5, characterized in that the pins (90, 92) have an external taper (96) narrowing towards the free end, and the sleeve (82, 84, 86, 88) is designed with a correspondingly shaped mating double internal taper (98) .
  7. Powered hand tool according to any of the preceding claims, wherein the motor (12) is operatively connected via the drive shaft (14) to angular gearing (16) which has a mounted output shaft (18) which is operatively connected via an eccentric (20) and a driving element (22) to an insert tool (112) movable in a reciprocating manner, the angular gearing (16) being arranged in a separate gearbox (24).
  8. Powered hand tool according to Claim 7, characterized in that the gearbox (24) is made of metal.
  9. Powered hand tool according to Claim 7 or 8, characterized in that the gearbox (24), in the front region (26), forms at least part of the housing (10).
  10. Powered hand tool according to Claim 9, characterized in that a lid (28) of the gearbox (24), in the front, bottom region (26), forms part of the housing (10).
  11. Powered hand tool according to Claim 10,
    characterized in that a housing shell (80), with at least one pin (76) formed at a gate mark, engages in an opening of the lid (28) in a positive-locking manner.
  12. Powered hand tool according to Claim 10 or 11, characterized in that a protective cap (130) is inserted in a positive-locking manner between the gearbox (24) and its lid (28).
  13. Powered hand tool according to one of the preceding claims, characterized in that at least one bearing (30) of the output shaft (18) and one bearing (32) of the drive shaft (14) are arranged in the gearbox (24).
  14. Powered hand tool according to Claim 13, characterized in that the bearing (32) of the drive shaft (14) is inserted into a pot-shaped recess (34) in the gearbox (24).
  15. Powered hand tool according to Claim 14, characterized in that the bearing (32) of the drive shaft (14) is supported over part of its length directly in the gearbox (24) in the radial direction via a sliding fit (36) and is supported over part of its length in the gearbox (24) in the radial direction via a plastic ring (38).
  16. Powered hand tool according to one of Claims 13 to 15, characterized in that the bearing (32) of the drive shaft (14) is fixed in at least one axial direction via a housing part (40).
  17. Powered hand tool according to one of the preceding claims, characterized in that at least one guide bearing (42) of the insert tool (112) is fastened to the gearbox (24).
  18. Powered hand tool according to Claim 17, characterized in that at least one part (150, 152) of the gearbox (24) and at least one part (154) of the guide bearing (42) engage in an interlocking manner.
  19. Powered hand tool according to one of the preceding claims, characterized in that at least one adjusting means (44) is mounted in the gearbox (24), via which adjusting means (44) the output shaft (18) can be axially adjusted relative to the gearbox (24) and the gear backlash can be set.
  20. Powered hand tool according to Claim 19, characterized in that the adjusting means (44) is designed as a bearing bush and accommodates a second bearing (46) of the output shaft (18).
  21. Powered hand tool according to Claim 19 or 20, characterized in that the adjusting means (44), at an axial surface (48), has at least one annular wedge (50), to which a housing-side mating annular wedge (52) is assigned as supporting surface, and is pressed with the annular wedge (50) against the mating annular wedge (52) via at least two screws (54, 56), which act via their screw heads (58, 60) on a respective clamping surface (62) of the adjusting means (44) and on a seating surface (64) of the gearbox (24), the clamping surface (62), with rising annular wedge (50), being displaced in the axial direction and compensating for the adjusting travel.
  22. Powered hand tool according to Claim 21, characterized in that a swept angle (144) between screw domes (146, 148) of the two screws (54, 56) is not equal to 180°.
  23. Powered hand tool according to Claim 22, characterized in that the clamping surface (62) is formed by steps (66).
  24. Powered hand tool according to one of Claims 19 to 23, characterized in that the adjusting means (44) is designed in one piece with an anti-rotation locking means (68).
  25. Powered hand tool according to one of Claims 19 to 24, characterized in that, in the region of a bearing surface (70) of the adjusting means (44), a groove for a seal is incorporated in the gearbox (24) and/or in the adjusting means (44).
  26. Powered hand tool according to Claim 19 or 20, characterized in that the adjusting means is pressed against the gearbox (24) via a flat spring and is fixed in a rotationally locked manner during operation via the flat spring.
  27. Powered hand tool according to one of Claims 1 to 5 and one of Claims 10, 11, 12 or 26, characterized in that the lid (28) of the gearbox (24) is inserted with at least one pin into a sleeve (86, 88) of the gearbox (24).
EP05002993A 1999-08-16 2000-07-19 Portable power tool Expired - Fee Related EP1537948B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1999138176 DE19938176A1 (en) 1999-08-16 1999-08-16 Hand tool
DE19938176 1999-08-16
EP20000115532 EP1077106B1 (en) 1999-08-16 2000-07-19 Portable power tool

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP20000115532 Division EP1077106B1 (en) 1999-08-16 2000-07-19 Portable power tool

Publications (2)

Publication Number Publication Date
EP1537948A1 EP1537948A1 (en) 2005-06-08
EP1537948B1 true EP1537948B1 (en) 2006-11-02

Family

ID=7918137

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20000115532 Expired - Fee Related EP1077106B1 (en) 1999-08-16 2000-07-19 Portable power tool
EP05002993A Expired - Fee Related EP1537948B1 (en) 1999-08-16 2000-07-19 Portable power tool

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20000115532 Expired - Fee Related EP1077106B1 (en) 1999-08-16 2000-07-19 Portable power tool

Country Status (3)

Country Link
EP (2) EP1077106B1 (en)
CN (1) CN1205001C (en)
DE (2) DE19938176A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101407055B (en) * 2007-10-11 2012-06-20 安德烈亚斯.斯蒂尔两合公司 Hand-guided power tool
US8561717B2 (en) 2005-11-04 2013-10-22 Robert Bosch Gmbh Articulating drill with integrated circuit board and method of operation

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004008462U1 (en) * 2004-05-27 2005-10-06 Metabowerke Gmbh Power tool, comprising separate housing for transmission unit accommodated in main housing
US8087977B2 (en) 2005-05-13 2012-01-03 Black & Decker Inc. Angle grinder
JP2010155291A (en) * 2008-12-26 2010-07-15 Makita Corp Power tool
CN103506958B (en) * 2012-06-15 2016-10-05 株式会社牧田 Water injection type electric tool

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095248A (en) * 1960-01-09 1963-06-25 Electrolux Ab Bearing mount for rotatable machines
FR1453837A (en) * 1965-03-18 1966-07-22 Scovill Manufacturing Co Knife used in particular mechanical actuation to cut the sliced ​​food
DE2400902C2 (en) * 1974-01-09 1982-05-27 A. Friedr. Flender Gmbh & Co Kg, 4290 Bocholt, De
DE3000452C2 (en) * 1980-01-08 1984-09-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De
JPH0351540Y2 (en) * 1985-08-02 1991-11-06
DE8624918U1 (en) * 1986-09-18 1988-01-28 Robert Bosch Gmbh, 7000 Stuttgart, De
DE4003031A1 (en) * 1990-02-02 1991-08-08 Bosch Gmbh Robert Hand machine tool with high speed, ventilated internal electric motor
DE4102838A1 (en) * 1991-01-31 1992-08-06 Bosch Gmbh Robert Hand machine tool
DE4235278A1 (en) * 1992-10-20 1994-04-21 Bosch Gmbh Robert Hand machine tools, in particular motor files
US5379846A (en) * 1993-01-07 1995-01-10 Black & Decker Inc. Electrical appliance and handle for same
DE19547332A1 (en) * 1995-12-19 1997-06-26 Bosch Gmbh Robert Electric hand machine tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8561717B2 (en) 2005-11-04 2013-10-22 Robert Bosch Gmbh Articulating drill with integrated circuit board and method of operation
CN101407055B (en) * 2007-10-11 2012-06-20 安德烈亚斯.斯蒂尔两合公司 Hand-guided power tool

Also Published As

Publication number Publication date
EP1077106A3 (en) 2002-06-05
EP1537948A1 (en) 2005-06-08
CN1284419A (en) 2001-02-21
EP1077106B1 (en) 2005-05-11
DE19938176A1 (en) 2001-03-08
EP1077106A2 (en) 2001-02-21
CN1205001C (en) 2005-06-08
DE50013707D1 (en) 2006-12-14

Similar Documents

Publication Publication Date Title
US10464148B2 (en) Reciprocating saw
EP1335815B1 (en) Grip handle for hand-held machine tool
US7217178B2 (en) Rotary power tool
US8141444B2 (en) Bearing structure for a reciprocating shaft in a reciprocating saw
US20190151969A1 (en) Oscillating Power Tool
EP2000264B1 (en) Power tool with dynamic vibration reducer
EP2138278B1 (en) Handle for a power tool
ES2260560T3 (en) Support mechanism for alternative tools and tool that includes such mechanism.
US8291603B2 (en) Handheld power tool, in particular handheld power saw
EP2090393B1 (en) Reciprocating power tool
EP2319662B1 (en) Work tool
EP1502687B1 (en) Reciprocating saw
NL193310C (en) Rotary hammer.
US6851193B2 (en) Reciprocating saw
JP3858529B2 (en) Saver saw blade attachment / detachment mechanism
US7788811B2 (en) Hand-held power working machine
EP0345896B1 (en) Device for driving a drilling and/or percussion tool
US5794352A (en) Saw blade clamping arrangement for a power tool
US8167054B2 (en) Power tool
US6357124B1 (en) Clamp system for a jigsaw tilt base
US3802079A (en) Saw blade holder for portable reciprocating saw
US7794308B2 (en) Hand-held power tool
US20040117993A1 (en) Reciprocating saw
US20020094907A1 (en) Gear assembly for a power tool
EP2298504B1 (en) Power tool

Legal Events

Date Code Title Description
AC Divisional application (art. 76) of:

Ref document number: 1077106

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states:

Kind code of ref document: A1

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 20050715

AKX Payment of designation fees

Designated state(s): DE FR GB

AC Divisional application (art. 76) of:

Ref document number: 1077106

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states:

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50013707

Country of ref document: DE

Date of ref document: 20061214

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20070208

ET Fr: translation filed
26N No opposition filed

Effective date: 20070803

PGFP Postgrant: annual fees paid to national office

Ref country code: FR

Payment date: 20090720

Year of fee payment: 10

PGFP Postgrant: annual fees paid to national office

Ref country code: GB

Payment date: 20090724

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100719

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110331

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100802

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100719

PGFP Postgrant: annual fees paid to national office

Ref country code: DE

Payment date: 20150925

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50013707

Country of ref document: DE

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170201