EP1077106A2 - Portable power tool - Google Patents

Portable power tool Download PDF

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Publication number
EP1077106A2
EP1077106A2 EP00115532A EP00115532A EP1077106A2 EP 1077106 A2 EP1077106 A2 EP 1077106A2 EP 00115532 A EP00115532 A EP 00115532A EP 00115532 A EP00115532 A EP 00115532A EP 1077106 A2 EP1077106 A2 EP 1077106A2
Authority
EP
European Patent Office
Prior art keywords
characterized
tool according
hand tool
housing
gear housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00115532A
Other languages
German (de)
French (fr)
Other versions
EP1077106A3 (en
EP1077106B1 (en
Inventor
Gerd Berner
Uwe Engelfried
Justus Lamprecht
Joachim Mueller
Julian Pfaundler
Monika Renner
Peter Stierle
Steffen Wuensch
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
Publication of EP1077106A2 publication Critical patent/EP1077106A2/en
Publication of EP1077106A3 publication Critical patent/EP1077106A3/en
Application granted granted Critical
Publication of EP1077106B1 publication Critical patent/EP1077106B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

Abstract

The tool has a motor (12) in a housing (10) that interacts via a drive shaft (14) with an angled gearbox (16) with a driven shaft (18) on bearings that interacts with a reciprocally movable tool via an eccentric element (20) and a drive element (22). The gearbox is mounted in a separate gearbox housing (24) that can be made of metal or synthetic material.

Description

State of the art

The invention is based on a hand machine tool the preamble of claim 1.

DE 195 47 332 A1 is a generic hand-held power tool known, the cylindrical housing consists of two plastic housing shells, the edges of each one Form dividing edge that define a horizontal dividing plane. The housing shells are screwed together connected. Inside the case is a motor with a Fan wheel arranged, the drive shaft via a ball bearing stored in the housing shells and with a conical Pinion is rotatably connected. The pinion meshes with one of an output shaft of a non-rotatable conical ring gear, whose axis of rotation is perpendicular to the drive shaft.

The output shaft has a bearing remote from the tool, the has a ring-like plain bearing, which in a cylindrical Bearing of a housing shell is used. Also owns the output shaft a tool-near bearing, the has a sleeve-like bearing bush with a needle bearing.

An eccentric pin carried by the end of the output shaft near the tool protrudes through the bearing bush from above into a hole of a connecting rod-like driver with a projection engages in a recess of an insert tool that over a guide bearing is stored in the front area of the housing shells is.

Advantages of the invention

The invention is based on a handheld power tool with a motor arranged in a housing, via a drive shaft effectively connected with an angular gear is, which has a mounted output shaft that over a Eccentric and a driving element with a back and forth movable insert is in operative connection.

It is proposed that the bevel gear be in a separate Gear housing is arranged. The gearbox can be advantageous from one of the loads, especially bearing loads customized material are produced, and although particularly advantageous from a metal, such as in particular made of die-cast aluminum. However, the gearbox is also possible to manufacture from a particularly resilient plastic.

In addition, the transmission housing can take up bearing forces can be used to advantage, particularly contaminated Form areas of the housing, especially in the front Hand machine tool area. The hand machine tool can easily by a plastic housing and by an aluminum front or aluminum snout particularly resilient are carried out, also particularly advantageous over the heat released from the hand tool to the environment and a required cooling capacity can be kept low.

In one embodiment of the invention it is proposed that a cover of the gear housing in the front, lower area forms part of the housing. The front, lower area the hand tool is usually subjected to high loads during operation, in particular with hand-held power tools that are in the front Area are kinked down and thus just above of the surface to be machined. The gearbox cover can be made of a particularly resilient material, how especially die-cast aluminum are manufactured and Furthermore, the lid can be particularly simple and inexpensive Assembly can be realized. In addition, the rear Part of the housing can advantageously be removed independently of the cover be carried out, for example when replacing of engine coals, power lines or grommets disassembly of the front area and the insert tool can be avoided. To with little additional effort close the lid as securely as possible with the hand tool connect, are advantageous from casting a housing shell existing spigot used, a positive fit and possibly create a frictional connection between the cover and the housing shell.

Many bearing points are preferably integrated in the gear housing, specifically bearings for the drive shaft, the output shaft and / or for the application tool. The bearing points can be manufactured particularly precisely in relation to one another and after manufacturing, especially after casting of the gear housing, reworked in one setting become. Misalignment can avoid wear can be reduced and the lifespan can be increased. Further can have large bearing forces, especially in a guide bearing the insert tool is advantageously supported in the gear housing be made of a particularly resilient material can be produced. To with as few additional fasteners as possible a secure connection between the guide bearing and to reach the gearbox, it is proposed that at least part of the gearbox and at least part of the guide bearing in a form-fitting manner grip, for example, molded onto the guide bearing Grip the pins in the openings of the gearbox housing and / or pins can be formed on the gearbox housing in openings of the guide bearing.

A bearing of the drive shaft is advantageously in a cup-shaped Recess inserted in the gear housing. Different Thermal expansion through different materials can avoided and a resulting tilting of the drive shaft can be prevented. In one embodiment it is proposed that the bearing of the drive shaft via a Part of its length in the radial direction via a sliding seat directly in the gearbox and over part of it Length in the radial direction via a plastic ring in the gear housing is supported, preferably over about 1/3 of its length over the sliding seat and about 2/3 over the plastic ring or a rubber ring. The drive shaft is securely fixed by the sliding seat and can also advantageously dampened via the rubber ring in the bearing or can compensate vibrations and shocks from the rubber ring become. Furthermore, an outer ring of the bearing through the Plastic ring or rubber ring, the tolerances of the sliding seat can compensate radially and torsionally via a clamp be fixed. In the axial direction, the drive shaft bearing advantageously fixed via a housing part, which means additional Components, installation space, installation effort and costs saved can be. Holding elements can be simple and inexpensive molded onto screw domes of the housing, the often protrude into the interior of the housing.

In addition to at least one radial bearing point of the output shaft is advantageous at least one adjusting means in the gear housing mounted, through which the output shaft opposite the gear housing axially adjustable and the gear play adjustable is. The actuating means can be particularly precise in relation to the output shaft and especially to their first radial bearing be performed. 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 inserted. Additional Components can be avoided and weight, space, assembly costs and costs can be reduced. Furthermore, the output shaft radially and axially stored particularly precisely.

The actuating means can be used in various ways which are suitable for the person skilled in the art adjusting mechanisms appearing on the output shaft act and via various devices on the gearbox be attached, for example via a thread, etc. Particularly However, the actuating means advantageously has one axial surface at least one ring wedge, which is a housing Counter ring wedge is assigned as a support surface. The Adjusting means is preferably with the ring wedge against the counter-ring wedge pressed over at least two screws that over their screw heads each on a clamping surface of the adjusting means and act on a bearing surface of the gear housing, the clamping surface with increasing ring wedge in shifts in the axial direction and thereby compensates for the adjustment path. The screws can advantageously be used to cover the gear housing be installed independently of the positioning device. On Push button on which in the area of the output shaft Driving element acted and the tool from his Detent connection can be released, can already be advantageous before assembling the lid, put it in and a Subsequent insertion of the push button can be avoided. The assembly can be simplified and elastic locking means, savings can be made especially on the push button.

Through the contact surfaces on the gear housing can be avoided be that the screws when adjusting the adjusting means tilted and the threads destroyed. To the contact surfaces Being able to use it in all positions is advantageous the clamping surface the actuating movement, so that the Screw heads in the set positions always on the contact surfaces and can act on the clamping surface. The clamping surface is preferably carried out in a step-like manner, as a result of which level Contact surfaces for the screw heads can be reached.

In order to avoid twisting the adjusting means, this will be Positioning means fixed with an anti-rotation device in the circumferential direction, which is preferably molded onto the adjusting means. Additional Components can be avoided.

In one embodiment, the actuating means is also used for this to seal the gear housing to the outside by in Area of a bearing surface of the actuating means in the gear housing and / or in the adjusting means a groove for a seal is introduced.

As an alternative to the screws, the adjusting means can be advantageous pressed against the gearbox housing by means of a plate spring or be axially fixed to this. The disc spring is preferred form-fitting in the circumferential direction via a first toothing with the adjusting means and with a second set of teeth connected to an adjacent component, e.g. with the bearing cover or gear housing cover, making it structurally simple an anti-twist device during operation and an adjustment in the circumferential direction can be achieved can.

It is also proposed that at least on the gear housing a sleeve is arranged, in which a pin of a first and a pin of a second housing shell form and are preferably inserted non-positively. In addition to one advantageous absorption of bearing forces in the gearbox, can be a particularly dimensionally stable hand tool reached and a gaping of the housing shells at strong Stress can be avoided. The solution according to the invention can be used in all those which appear suitable to the person skilled in the art Hand machine tools with gear housings are used and especially in a hand machine tool with a Angular gear.

The housing shells are advantageous in a horizontal working position assembled in a horizontal division level. A housing shell can thus be used as an assembly shell, assembly can be simplified and dimensional stability can be increased. Furthermore, it can be avoided that a user with large holding forces in the area of the division level must act on the hand tool, for example with a so-called soft grip a particularly pleasant one Grasping can be achieved. Basically you can the housing shells, however, also in a vertical division plane or put together in other division levels his.

The pins are advantageously formed by screw domes. Additional Components can be avoided or do not have to be additional Parts are molded onto the housing shells. In a Embodiment of the invention is proposed to the pin To form crush ribs. In particular plastic housing shells can thereby advantageously to a metal gear housing adjusted, tolerances can be balanced and it can be a special one secure connection can be achieved. The pinch ribs can easily be molded onto the plastic spigot and are preferably about 0.2 mm high.

The sleeve can be non-positively, positively on the gear housing and / or cohesively attached is advantageous molded onto the gear housing. To a cutting To avoid post-processing and to increase the adhesion, the sleeve is designed with a double inner cone, in which the pins are inserted with a correspondingly shaped counter outer cone are.

In addition to the housing shells, the gear housing cover is advantageous inserted into a sleeve with at least one pin and can therefore be particularly securely attached and Contribute to dimensional stability.

drawing

Further advantages result from the following description of the drawing. In the drawing, an embodiment of the Invention shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will also expediently use the features individually consider and combine them into meaningful further combinations.

Show it:

Fig. 1
2 shows 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
2 shows an enlarged section III from FIG. 1 with an inserted insert tool,
Fig. 4
1 before the assembly of an upper housing shell,
Fig. 5
4 after the assembly of 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 at an angle from above,
Fig. 9
an adjusting device diagonally from below and
Fig. 10
a positioning device diagonally from above.
Description of the embodiment

Fig. 1 shows a longitudinal section through an inventive Hand tool for scraping surfaces, briefly referred to as a scraper. The hand machine tool has a motor 12 arranged in a housing 10, which electrically supplied via electrical cable 100 and via one Switch 102 can be switched on and off. The electric motor 12 is via a drive shaft 14 with a fan wheel 104 and operatively connected to an angular gear 16, namely a pinion 106 is attached to the drive shaft 14, the with a ring gear 108 carried by an output shaft 18 meshes, the axis of rotation of which is perpendicular to the drive shaft 14 runs. At the downward end of the output shaft 18 is an eccentric pin 20 formed into a connecting rod-like Driving element 22 and a molded bolt 114 in an elongated hole 116 of an insert tool 112 engages (FIG. 2 and 3). The eccentric pin 20 is via a roller bearing 134 in Driving element 22 stored. Through the elongated hole 116 the transmission of motion from the drive shaft 14 via the Driving element 22 on the insert tool 112 only when the insert tool 112 placed on a work surface and is pushed back so far that the bolt 114 on the edge support the elongated hole 116 and so its back and forth Can transfer motion to the insert tool 112. in the The insert tool 122 is idle with the drive shaft rotating 14 silent, so that the wear on the motion-transmitting Sharing is reduced. Injuries while idling through a moving insert tool 112 avoided. Furthermore, the stationary insert tool 112 in the Target idling at a desired location on the one to be processed Surface.

According to the invention, the bevel gear 16 is in a separate one Gear housing 24 made of die-cast aluminum, which in front, upper region 26 a first part and with a Cover 28 in the front, lower area 26 a second part of the housing 10 or outer walls of the hand machine tool.

Several bearing points are integrated in the gear housing 24. The drive shaft 14 of the electric motor 12 is on a first, end facing away from insert tool 112 via a bearing 118 and via a component 120 in a first upper plastic housing shell 78 stored. A second, the application tool 112 facing end of the drive shaft 14 is over a Bearing 32 in a cup-shaped recess 34 in the gear housing 24 stored. The bearing 32 is approx. over 1/3 of its length via a sliding seat 36 directly in the gearbox 24 and about 2/3 of its length in radial Direction supported on a rubber ring 38 in the gear housing 24. In the axial direction, the bearing 32 is via a retaining rib 40 fixed in the pot-shaped recess 34, the a screw dome of the upper housing shell 78 is formed and in front of the cup-shaped recess 34 during assembly pushes (Fig. 4 and 5).

Furthermore, the output shaft 18 is on its upper, the insert tool 112 opposite end with a first bearing 30 directly and on its second, facing the insert tool 112 End with a second bearing 46 via an actuator 44 trained bearing bush mounted in the gear housing 24.

The adjusting means 44 is cylindrical in a bearing surface 70 Recess 142 stored in the gear housing 24 (Figs. 1, 4, 5, 6, 9 and 10). On an insert tool 112 axial surface 48 facing away from an integrally formed collar 122 the adjusting means 44 has a ring wedge 50, which is a housing-side Mating ring wedge 52 assigned as a support surface is. The ring wedge 50 is against the by two screws 54, 56 Pressed against the ring wedge 52, which over their screw heads 58, 60 each on a clamping surface 62 of the adjusting means 44 and act on bearing surfaces 64 of the gear housing 24, which by Webs are formed. Assembly rotated by 180 ° To avoid adjusting means 44 is the swept angle 144 from the first screw 54 to the second screw 56 or from a first screw dome 146 to a second screw dome 148 not equal to 180 ° (Fig. 2 and 6).

The clamping surface 62 moves with an increasing ring wedge 50 in the axial direction and thereby equalizes the adjustment path out. The screw heads 58, 60 act in the set positions always on the clamping surface 62 and on the support surfaces 64. The clamping surface 62 is formed by steps 66 which in the Positioning positions parallel to the contact surfaces of the screw heads 58, 60 run.

By loosening the screws 54, 56 and turning the Adjustment means 44 can adjust the output shaft 18 axially and thereby the gear play can be adjusted. To an unwanted Avoid twisting during operation is on molded on the collar 122 of the adjusting means 44 an anti-rotation device 68, namely in the form of indentations, which at screws 54, 56 fully screwed in, in the adjustment direction embrace positively. In order to lead the To reach actuating means 44 and to avoid tilting, is a puncture 72 in the transmission housing in the area of the federal government 122 24 introduced. Furthermore, in the area of the storage area 70 a groove, not shown, for a seal introduced into the adjusting means 44 and / or into the gear housing 24 to a through the long storage area 70 already further improve the good sealing effect and to avoid that lubricants from the gear housing 24 to the outside penetrate.

The gear housing 24 is also in the front region 26 a U-shaped guide bearing 42 for the insert tool 112 attached via a screw 124 (Fig. 3 and 8). To the gearbox 24 molded pins 150, 152 engage in the assembled State in a form-fitting manner in recesses 156, 158 one Cover side 154 of the guide bearing 42 (FIGS. 6 and 8). This in a stamping and bending process from a hardened steel sheet Guide bearing 42 produced is supported with end faces 160 his legs on the gear housing 24. The lead camp 42 is thus securely positively and non-positively with the gear housing 24 connected and a reworking of the storage areas or bearing surfaces 160 of the guide bearing 42 the punching and bending process can be avoided. Between Legs of the U-shaped guide bearing 42 is also the driving element 22 guided against rotation (Fig. 2).

The insert tool 112 is low-wear in the guide bearing 42 by four rolling elements 126 configured as needles in the longitudinal direction slidably mounted, which led into slots 128 and a retaining plate 162 before the assembly of the Guide bearing 42 held captive on the gear housing 24 are. The holding plate 162 is in the U-shaped guide bearing 42 with molded projections 164 in recesses 74 snaps into place.

The hand machine tool is over towards the work area a protective cap 130 sealed with a felt seal 132, the form-fitting between the gear housing 24 and the cover 28 is inserted, namely engage the gear housing 24 and the cover 28 between two circumferential beads Protective cap 130. The protective cap 130 is therefore special easy to assemble and particularly tear-proof with the hand tool connected. The insert tool 112 protrudes through the protective cap 130 to the outside. The protective cap 130 is against wear or abrasion on the surface to be processed through the cover 28 and through the gear housing 24 protected.

The driver element can be used to replace the insert tool 112 22 via the push button 110 along the eccentric pin 20 are moved against a compression spring 136, the is supported in an indentation 138 on the actuating means 44. The Bolt 114 moves out of slot 116 of the insert tool 112, which removes this without tools and a 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 in a horizontal working position in a horizontal division level 140 are joined (Fig. 2). To the gearbox 24, four sleeves 82, 84, 86, 88 are formed in the from above four pins 90 of the upper housing shell 78 force and are positively inserted (Fig. 2, 6 and 7). Further are from below into the two facing away from the insert tool 112 Sleeves 82, 84 two pins 92 from the lower housing shell 80 and into the two facing the insert tool 112 Sleeves 86, 88 two pins of the cover 28 positive and non-positive plugged in. The pins 90, 92 of the housing shells 78, 80 and the pins of the cover 28 are screw domes formed over which the housing shells 78, 80, the lid 28 and the gear housing 24 via not shown Screws are screwed together. The housing shell 80 also grips over two pins 76 formed at gates positively in two openings of the Cover 28.

In order to avoid machining and the adhesion to increase, the sleeves 82, 84, 86, 88 are each with a double inner cone 98 into which the pins 90, 92 of the housing shells 78, 80 and the pins of the cover 28 inserted with a correspondingly shaped counter-outer cone 96 are. Furthermore, pin ribs 94 are formed on the pins 90, 92, whereby the pins 90, 92 on the sleeves 82, 84, 86, 88 can adapt and a particularly advantageous force and Form fit can be achieved.

reference numeral

10th
casing
12th
engine
14
drive shaft
16
Angular gear
18th
Output shaft
20th
eccentric
22
Driving element
24th
Gear housing
26
Area
28
cover
30th
camp
32
camp
34
Recess
36
Sliding seat
38
Plastic ring
40
Housing part
42
Guide bearing
44
Positioning means
46
camp
48
area
50
Ring wedge
52
Counter ring wedge
54
screw
56
screw
58
Screw head
60
Screw head
62
Clamping surface
64
Contact surface
66
step
68
Anti-rotation device
70
storage area
72
puncture
74
Recess
76
Cones
78
Housing shell
80
Housing shell
82
Sleeve
84
Sleeve
86
Sleeve
88
Sleeve
90
Cones
92
Cones
94
Crush rib
96
Outer cone
98
Counter double inner cone
100
Electrical cables
102
switch
104
Fan wheel
106
pinion
108
Ring gear
110
Push button
112
Insert 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
Division level
142
Recess
144
angle
146
Dome of the screw
148
Dome of the screw
150
part
152
part
154
part
156
Recess
158
Recess
160
Face
162
Bracket
164
head Start

Claims (27)

  1. Hand tool with one arranged in a housing (10) Motor (12) with a drive shaft (14) an angular gear (16) is operatively connected has a mounted output shaft (18) which via a Eccentric (20) and a driving element (22) with a back and forth Hereby movable insert tool (112) in operative connection stands, characterized in that the angular gear (16) in a separate gear housing (24) is arranged.
  2. Hand machine tool according to claim 1, characterized in that the gear housing (24) is made of metal.
  3. Hand machine tool according to claim 1 or 2, characterized in that that the gear housing (24) in the front area (26) forms at least part of the housing (10).
  4. Hand tool according to claim 3, characterized in that a cover (28) of the gear housing (24) in front, lower area (26) part of the housing (10) forms.
  5. Hand tool according to claim 4, characterized in that a housing shell (80) with at least one a gate (76) formed in a form-fitting manner in a Opening of the cover (28) engages.
  6. Hand tool according to claim 4 or 5, characterized in that that between the gear housing (24) and his Cover (28) a protective cap (130) inserted in a form-fitting manner is.
  7. Hand tool according to one of the preceding claims, characterized in that at least one bearing (30) the output shaft (18) and a bearing (32) of the drive shaft (14) are arranged in the gear housing (24).
  8. Hand tool according to claim 7, characterized in that the bearing (32) of the drive shaft (14) in a Pot-shaped recess (34) inserted in the gear housing (24) is.
  9. Hand tool according to claim 8, characterized in that the bearing (32) of the drive shaft (14) via a Part of its length in the radial direction via a sliding seat (36) directly in the gear housing (24) and via a Part of its length in the radial direction over a plastic ring (38) is supported in the gear housing (24).
  10. Hand tool according to one of claims 7 to 9, characterized in that the bearing (32) of the drive shaft (14) in at least one axial direction via a housing part (40) is fixed.
  11. Hand tool according to one of the preceding claims, characterized in that at least one guide bearing (42) of the insert tool (112) on the gear housing (24) is attached.
  12. Hand tool according to claim 11, characterized in that at least a part (150, 152) of the gear housing (24) and at least a part (154) of the guide bearing (42) interlock positively.
  13. Hand tool according to one of the preceding claims, characterized in that at least one adjusting means (44) is mounted in the gear housing (24) via which the Output shaft (18) with respect to the gear housing (24) axially adjustable and the gear play is adjustable.
  14. Hand tool according to claim 13, characterized in that the adjusting means (44) is designed as a bearing bush and a second bearing (46) of the output shaft (18) records.
  15. Hand tool according to claim 13 or 14, characterized characterized in that the adjusting means (44) on an axial Surface (48) has at least one ring wedge (50), the one Housing-side mating ring wedge (52) assigned as a support surface and with the ring wedge (50) against the counter ring wedge (52) is pressed over at least two screws (54, 56) via their screw heads (58, 60) each on a clamping surface (62) of the actuating means (44) and on a support surface (64) of the gear housing (24) act, the clamping surface (62) with rising ring wedge (50) in the axial direction moves and compensates for the adjustment path.
  16. Hand tool according to claim 15, characterized in that a swept angle (144) between Screw domes (146, 148) of the two screws (54, 56) different Is 180 °.
  17. Hand tool according to claim 16, characterized in that the clamping surface (62) of steps (66) is formed is.
  18. Hand tool according to one of claims 13 to 17, characterized in that the adjusting means (44) with a Anti-rotation device (68) is made in one piece.
  19. Hand tool according to one of claims 13 to 18, characterized in that in the area of a bearing surface (70) of the adjusting means (44) in the gear housing (24) and / or in the adjusting means (44) introduced a groove for a seal is.
  20. Hand tool according to claim 13 or 14, characterized characterized in that the adjusting means against a flat spring the gear housing (24) pressed and over the plate spring is rotatably fixed during operation.
  21. Hand tool with a housing (10) that at least a first and a second extending in the longitudinal direction Has housing shell (78, 80) in which a motor (12) is mounted with a drive shaft (14) a gearbox (16) is coupled, which via an output shaft (18) with an insert tool (112) in operative connection stands, in particular according to one of the preceding claims, characterized in that the gear (16) in a gear housing (24) with at least one sleeve (82, 84, 86, 88) is arranged, in which a pin (90) of the first housing shell (78) and a pin (92) of the second housing shell (80) are at least positively inserted.
  22. Hand tool according to claim 21, characterized in that the first and the second housing shell (78, 80) in a horizontal working position in a horizontal Division level (140) are joined together.
  23. Hand tool according to claim 22, characterized in that the pin (90, 92) formed by screw domes are.
  24. Hand tool according to claim 22 or 23, characterized characterized in that at least one pin (90, 92) Crimp ribs (94) are formed.
  25. Hand tool according to one of claims 21 to 24 characterized in that the sleeve (82, 84, 86, 88) to the Gear housing (24) is integrally formed.
  26. Hand tool according to claim 25, characterized in that the pin (90, 92) one to the free end have a tapering outer cone (96) and the sleeve (82, 84, 86, 88) with a correspondingly shaped counter double inner cone (98) is executed.
  27. Hand tool according to one of claims 4 to 6 and one of claims 20 to 25, characterized in that that the cover (28) of the gear housing (24) with at least a pin in a sleeve (86, 88) of the gear housing (24) is stuck.
EP20000115532 1999-08-16 2000-07-19 Portable power tool Expired - Fee Related EP1077106B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1999138176 DE19938176A1 (en) 1999-08-16 1999-08-16 Hand tool
DE19938176 1999-08-16

Applications Claiming Priority (1)

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

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP05002993A Division EP1537948B1 (en) 1999-08-16 2000-07-19 Portable power tool

Publications (3)

Publication Number Publication Date
EP1077106A2 true EP1077106A2 (en) 2001-02-21
EP1077106A3 EP1077106A3 (en) 2002-06-05
EP1077106B1 EP1077106B1 (en) 2005-05-11

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

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EP05002993A Expired - Fee Related EP1537948B1 (en) 1999-08-16 2000-07-19 Portable power tool

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

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US7722444B2 (en) 2005-05-13 2010-05-25 Black & Decker Inc. Angle grinder

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DE202004008462U1 (en) * 2004-05-27 2005-10-06 Metabowerke Gmbh Power tool, comprising separate housing for transmission unit accommodated in main housing
CN101300111B (en) 2005-11-04 2010-09-29 罗伯特·博世有限公司 Articulated hand-held electric tool and method for an transmitting axial force in electric tool
DE102007048887B4 (en) * 2007-10-11 2017-10-26 Andreas Stihl Ag & Co. Kg Hand-held implement
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

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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
DE2400902A1 (en) * 1974-01-09 1975-07-17 Kloeckner Werke Ag Device member having a bore for receiving the outer ring of a rolling bearing
EP0031867A2 (en) * 1980-01-08 1981-07-15 Licentia Patent-Verwaltungs-GmbH Gear-box for electrical tools
US4742725A (en) * 1985-08-02 1988-05-10 Toyota Jidosha Kabushiki Kaisha Mechanism for applying pre-load to bevel gear device
DE8624918U1 (en) * 1986-09-18 1988-01-28 Robert Bosch Gmbh, 7000 Stuttgart, De
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DE19547332A1 (en) * 1995-12-19 1997-06-26 Bosch Gmbh Robert Electric hand machine tool

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US7722444B2 (en) 2005-05-13 2010-05-25 Black & Decker Inc. Angle grinder
US8087976B2 (en) 2005-05-13 2012-01-03 Black & Decker Inc. Trigger assembly for angle grinder
US8087977B2 (en) 2005-05-13 2012-01-03 Black & Decker Inc. Angle grinder

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
EP1537948B1 (en) 2006-11-02
DE19938176A1 (en) 2001-03-08
CN1205001C (en) 2005-06-08
DE50013707D1 (en) 2006-12-14

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