CN100544896C - Hand held power machine, especially hammer drill and/or jump bit - Google Patents
Hand held power machine, especially hammer drill and/or jump bit Download PDFInfo
- Publication number
- CN100544896C CN100544896C CNB2005800333827A CN200580033382A CN100544896C CN 100544896 C CN100544896 C CN 100544896C CN B2005800333827 A CNB2005800333827 A CN B2005800333827A CN 200580033382 A CN200580033382 A CN 200580033382A CN 100544896 C CN100544896 C CN 100544896C
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- power machine
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000015556 catabolic process Effects 0.000 claims abstract description 9
- 238000013519 translation Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 210000004744 fore-foot Anatomy 0.000 claims description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 2
- 230000008685 targeting Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000014616 translation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D16/003—Clutches specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/165—Overload clutches, torque limiters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/195—Regulation means
- B25D2250/205—Regulation means for torque
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Hand held power machine, especially hammer drill and/or jump bit have: one is rotatably supported in hammer pipe (15) in the housing (11), that be used for driving rotatably cutter receiver (16); One is engaged on the hammer pipe (15), that can drive electrically, as to be used for driving rotatably hammer pipe (15) driven wheel (14); One have two concentrically with respect to one another, form the clutch that is rotationally connected (24) that cooperates and when breakdown torque is exceeded, interrupt cutter receiver (16) by the transferring elements (26) of transmitting torque, one of them clutch part is a hammer pipe (15); And one be arranged in the hammer pipe (15) by electric motor driven, be used for the beater mechanism (18) that translation ground drives cutter.In order to realize a firm freewheel clutch (24)---this clutch both can be applicable to the axial immovable hammer pipe of relative housing (11) and also can be applicable in the axially movable hammer pipe (15) of relative housing (11), wherein hammer pipe (15) can be made to single type or multi-piece type, another clutch part of super lock part (24) is a clutch sleeve pipe (25) that is engaged in slidably on the hammer pipe (15), and this clutch sleeve pipe can be connected into being rotationally connected of rigidity with driven wheel (14).
Description
Technical field
The present invention relates to a kind of hand held power machine, especially hammer drill and/or jump bit.
Background technology
Such known hand held power machine is provided with overload-release clutch, and it stops suddenly at driven cutter, the protection operating personnel avoided being subjected to too high reluctance torque when for example drilling tool was stuck.
The overload-release clutch that is configured to freewheel clutch in known hand held power machine is set on the hammer pipe that two-piece type constitutes and hammers into shape outside between duct member and the interior hammer tube portion that preferably carries tool-holder integratedly and works, and hammer tube portion is hammered duct member into shape outside being slidably inserted into an end section in this.Freewheel clutch has a plurality of locking balls that are provided with equidistantly on hammer pipe circumference, these locking ball journals hammers in the hole of duct member to removable and shape are inserted sealedly outside and on the one hand tangential shape is sunk to reach in the axial hole of hammering into shape in being configured in the tube portion end regions sealedly and hammered stretching out circumferentially of tube portion into shape outside exceeding on the other hand.A clutch ring that is arranged on movably on the outer hammer tube portion on axially is pressed over stretching out on the zone of locking ball by the clutch spring that is configured to stage clip with its inner conical surface, produce the force component of radial loaded locking ball thus, this force component has been determined the breakdown torque of freewheel clutch.When this breakdown torque was exceeded, the locking ball was pressed the power of the clutch spring of resistant function on the clutch ring radially outwardly, the power of opposing clutch spring the clutch ring is moved and the axial hole by interior hammer tube portion in deviate from.Make the disconnection that is connected of outer hammer duct member and interior hammer tube portion thus, and for example when the cutter on the interior hammer tube portion is stuck in the workpiece, hammers duct member outward into shape and can on interior hammer tube portion, freely rotate.The rotation of hammer pipe drives the driven wheel that is engaged on the outer hammer duct member by nothing with relatively rotating and realizes that this driven wheel is configured to bevel gear and reaches by speed reduction gearing by a Motor Drive.
At one also is that the hammer pipe is reached by single type ground structure and preferably has a cutter receiver integratedly at its front end in the hand held power machine of known, beginning part described type.Cooperating the driven wheel that also is configured to bevel gear at hammer on the pipe, this driven wheel by speed reduction gearing by a Motor Drive.Axially go up the conversion ring that can move by one on the hammer pipe, the hammer pipe does not selectively have with driven wheel to be connected (percussive drilling or the working method of holing) or to be fixed on un-rotatably on the housing with relatively rotating (cuts a hole the pricker working method).Freewheel clutch is set in the speed change level of speed reduction gearing.
Summary of the invention
According to the present invention, a kind of hand held power machine has been proposed, have: one is rotatably supported in hammer pipe in the housing, that be used for driving rotatably the cutter receiver; That can drive electrically, as to be used for driving rotatably a hammer pipe driven wheel; A clutch that is rotationally connected that when breakdown torque is exceeded, interrupts the cutter receiver, this clutch has two transferring elements by transmitting torque and forms the clutch part that cooperates, one of them clutch part is hammer pipe or parts that are connected with the hammer pipe, wherein, another clutch part is a clutch sleeve pipe that is engaged in slidably on the hammer pipe, this clutch sleeve pipe can be connected into being rotationally connected of rigidity with driven wheel, wherein: connecting by a conversion ring between clutch sleeve pipe and the driven wheel realizes that this conversion ring cooperates with an axial tooth structure formation that is configured on the clutch sleeve pipe by an adapter ring with axial tooth structure; The conversion ring connects by moving axially selectively not have with driven wheel or housing with relatively rotating.
Hand held power machine with technique scheme according to the present invention has its advantage, and promptly favourable parts are realized on not only compact but also firm and the available cost of this novel freewheel clutch.Hand held power machine need not structurally change freewheel clutch and both can equip relative housing shaft immovable hammer pipe that makes progress and also can equip upwards hammer pipe movably of relative housing shaft in the case, wherein hammers into shape that pipe can be configured to single type or multi-piece type.Even because freewheel clutch under the situation of single type hammer pipe, also can be arranged on hammer pipe on one's body this-and be unlike in be arranged on the known hand held power machine that is provided with single type hammer pipe in the speed reduction gearing part-this freewheel clutch works when low hammer pipe rotating speed, so that can be issued to the obvious high service life of freewheel clutch in the situation of constant torque.And clutch obtain since the slow-speed of revolution to have its tear strength of hand held power machine that is arranged on the freewheel clutch in the gear parts much smaller than known.
The clutch sleeve pipe of novel freewheel clutch can further constitute multipurpose multifunctional operating system with plain mode, its mode is it also can be equipped with the supporting functions that is used to hammer into shape pipe, the control function that is used for beater mechanism and be used to change ring except the clutch function a function vector, and this conversion ring is used to change each working method " boring " or " percussive drilling ", " cutter pricker " reaches " neutral position ".
By the favourable further configuration and the improvement of the measure hand held power machine that can obtain providing in the such scheme described in the explanation below.
According to a favourable form of implementation of the present invention, the clutch sleeve pipe that is engaged in slidably on the hammer pipe is received in the sliding bearing that is fixed in the housing, so that the clutch sleeve pipe is also born the supporting functions that is used to hammer into shape pipe.Sliding bearing can be used to control beater mechanism according to a form of implementation of the present invention described later in the case.
According to a favourable form of implementation of the present invention, connecting by a conversion ring that is provided with the axial tooth structure that is engaged on the clutch sleeve pipe between clutch sleeve pipe and the driven wheel realizes.This axial tooth structure with one be configured on the clutch sleeve pipe, preferable configuration forms and to cooperate deviating from axial tooth structure on the rear sleeve section of clutch ring.The conversion ring does not have coupling by moving axially selectively with driven wheel or housing with relatively rotating.By this conversion ring each working method of hand held power machine can be set, promptly " boring/percussive drilling " reaches " cutter pricker " and neutral position or zero position, and the clutch sleeve pipe neither connects also with driven wheel and is not fixed on the housing in the aftermentioned position.The clutch sleeve pipe is born the function vector of the conversion ring of the working method that is used to change hand held power machine simultaneously in this form of implementation of the present invention.
According to a favourable form of implementation of the present invention, the mechanical axis of a back-moving spring of hammer pipe opposing is to being bearing in the housing movably and being configured in backstop on the housing by two and an anti-backstop that is configured on the hammer pipe limits it and moves axially.For beater mechanism, preceding backstop has been determined an operating position having determined under the situation of the no axial load of hammer pipe that an idle position and back backstop are being hammered into shape under the situation that pipe is subjected to axial load.Thus can be in simple mode by the thrust of cancellation cutter, for example lift or mention the no-load running that hand held power machine causes beater mechanism from workpiece.
According to a favourable form of implementation of the present invention, beater mechanism be configured to air cushion type impact mechanism and have that be directed in the pipe at hammer, a translation driven piston in ground and one that separate with piston, in the hammer pipe, axially be directed to movably, act on the impact bolt on the cutter, wherein in the hammer pipe, surround an air cushion by piston and impact bolt.In the air cushion zone, reach the radial hole that in the clutch sleeve pipe, is provided with unanimity at the hammer pipe, these radial holes are arranged on the mobile route of hammer pipe so in phase, make when the hammer pipe is arranged in the operating position them be covered by sliding bearing and they are removed and be opened thus from sliding bearing in the idle position of hammering pipe into shape.Can realize being used for the sleeve pipe control of beater mechanism by these radial holes and sliding bearing.By the big quality and the axial stroke of hammer pipe, when hammering tube transitions into shape, the energy that impacts bolt and drift will be reduced soon to zero load with opening of radial hole with cooperatively interacting.This has protected parts, saves the high service life of impacting the bolt acquisition equipment and can reach hand held power machine.Can realize in addition being located at and impact between bolt and the cutter the short shift motion of axially movable drift in the hammer pipe.The short shift motion of this drift allows the excellent sealing of drift sealing device under the situation of very little wearing and tearing again.
Description of drawings
Below will describe the present invention in detail by the embodiment shown in the accompanying drawing.Accompanying drawing is represented:
Fig. 1: the summary side view that hand held power machine is partly dissected,
Fig. 2: have the longitudinal section of a section of the hand held power machine hammer pipe, Fig. 1 that is in the operating position,
Fig. 3: have the view hammer pipe, same as shown in Figure 2 that is in the idle position,
Fig. 4: section IV zoomed-in view among Fig. 2 when freewheel clutch responds.
The specific embodiment
In Fig. 1, summarily be configured to hammer drill and/or jump bit here, be also referred to as the combination hammer with the hand held power machine of representing with longitudinal section again in side view and the interested scope.It has a housing 11, and this housing comprises an especially electronic drive motor 12, and the latter makes borehole drill construction and/or the beater mechanism work that is connected the back by a transmission device 13.Transmission device 13 is meshed with a driven wheel 14 for this reason, and this driven wheel links with this hammer pipe in order to drive hammer pipe 15 rotatably.Driven wheel 14 preferably is configured to bevel gear.Drive by driven wheel 14 by means of drive motor 12 and transmission device 13 that hammer pipe 15 rotates and drive a cutter receiver 16 by this hammer pipe rotates, in this cutter receiver, do not have to reach axially movably to be fixed with a cutter 17 with relatively rotating.In addition, but drive beater mechanism 18 by drive motor 12 by this transmission device 13 and by crank gear 19 a translations ground that is connected the front.Be arranged on beater mechanism in the hammer pipe 15, that be configured to so-called air cushion type impact mechanism 18-especially shown in Fig. 2 and 3-have a piston 20 that reciprocally drives by crank gear 19 and one spaced with this piston, and this piston 20 surround the hammer or the impact bolt 21 of an air cushion 22, and having a drift 23 that in hammer pipe 15, is arranged on impact bolt 21 back, this drift can directly act on the cutter 17 that is fixed in the cutter receiver 16.Piston 20, impact bolt 21 and drift 23 can axially be directed in hammer pipe 15 movably and relatively the inwall of hammer pipe 15 be sealed airtightly.Be provided with a freewheel clutch 24 between driven wheel 14 and hammer pipe 15, it disconnects driven wheel 14 and is connected with the driving that hammer is managed between 15 when a breakdown torque is exceeded.
Hammer pipe 15 is rotatably supported in the housing 11, exactly, be fixed on the rolling bearing 35 in the housing 11 near the forefoot area of cutter receiver by one and near be arranged on by one freewheel clutch 24 sliding bearing 36 supports at it in its rear region, this sliding bearing also is fixed in the housing 11 and reception clutch sleeve pipe 25.Clutch sleeve pipe 25 is provided with an axial tooth structure 37 (Fig. 4) in deviating from the rear sleeve section of clutch ring 29, axial tooth structure 38 engagements of the same form of this an axial tooth structure and an adapter ring 46.Adapter ring 46 forms being configured in a radial distance of the axial tooth structure 47 on the driven wheel 14.Axial tooth structure with same form, the conversion ring 39 that is engaged in the axial tooth structure 38 of adapter ring 46 can be rotatably fixed on the housing by moving axially selectively on the one hand to form not have to be connected in relative rotation to reach can resist by a toothing that is configured on the housing 11 on the other hand with the axial tooth structure 47 of driven wheel 14 by this driven wheel, wherein on two shift positions on the one hand clutch sleeve pipe 25 and the axial tooth structure 37,38 of adapter ring 46 and on the other hand the axial tooth structure 38 on the adapter ring 46 keep engagement each other with axial tooth structure on the conversion ring 39.If conversion ring 39 is moved to the left in Fig. 2, then clutch sleeve pipe 25 is fixed on the housing 11, if conversion ring 39 moves right in Fig. 2, then clutch sleeve pipe 25 is connected with driven wheel 14 nothings with relatively rotating.The mechanical axis of hammer pipe 15 back-moving spring 40 of opposing in housing 11 is in being received in rolling bearing 35 and sliding bearing 36 movably, and wherein moving axially by two backstop and anti-backstops that are configured on the hammer pipe 15 that are configured on the housing 11 of hammer pipe 15 limited.Left front backstop in Fig. 2 and 3-it by rolling bearing 35 constitute-under hammer pipe 15 axial uncharge situations, be in the idle position, and the right back backstop in Fig. 2 and 3-it is constituted-is subjected at hammer pipe 15 operating position of having determined to be used for beater mechanism 18 under the situation of axial load by an annular shoulder 41 that is configured in the housing 11.The axial load of hammer pipe 15 axially is pressed on the workpiece by cutter 17 and produces.Be arranged on the anti-backstop of hammering into shape on the pipe 15 and be made of spring holder 32, the plate edge upper support on the inwall that always extends to housing 11 of this spring holder one and is configured to stage clip and hammers the back-moving spring 40 that pipe 15 and clutch spring 30 are provided with one heart relatively into shape.The rear support of back-moving spring 40 is made of a radially shoulder 42 that is configured in the housing 11.
At piston 20 and impact in the air cushion zone of hammer pipe 15 between the bolt 21, on hammer pipe 15, offer radial hole 43 and in clutch sleeve pipe 25, offer radial hole 44, these radial holes align.Preferred these radial holes 43,44 are provided with staggering the same circumference angle.These radial holes 43,44 are provided with mutually in phase like this with the displacement of hammer pipe 15 in the case, make them in the operating position of hammer pipe 15 (Fig. 2) be covered by sliding bearing 36, and air cushion 22 is sealed airtightly thus.On the contrary, in the idle position of hammer pipe 15, these radial holes 43,44 are removed (Fig. 3) by sliding bearing 36, and they are opened and being connected of the inside formation exchange of air of air cushion 22 and housing 11 thus.By surround air cushion 22, piston 20 makes hand held power machine with the space of impacting between the bolt 21 when carrying out the transition to zero load via opening of radial hole 43,44, the energy that impacts bolt 21 and drift 23 reduces soon, reaches hand held power machine and is transformed into zero load well.This has protected parts, saves to be used to impact the acquisition equipment of bolt 21 and to have realized short punch stroke, guarantees the excellent sealing and the very little wearing and tearing of drift sealing device 45 so again.
In " percussive drilling " working method under the situation that beater mechanism turn-offs and in " boring " working method, be placed on the workpiece and axially compress hand held power machine along with remaining on cutter 17 in the cutter receiver 16, hammer pipe 15 is moved to the operating position shown in Fig. 2 by the power of cutter 17 by drift 23 opposing back-moving springs 40.Be indicated on its neutral position or the zero position at Fig. 2 transfer ring change 39.If conversion ring 39 moves right in Fig. 2, then clutch sleeve pipe 25 is connected on the driven wheel 14 by nothing with relatively rotating.If start drive motor 12 now, then reach by super lock part 24 and make 15 rotations of hammer pipe by the driven wheel 14 that rotates, this hammer pipe itself does not relatively rotate cutter receiver 16 driving cutters 17 rotations that are connected by having with it.If be exceeded by clutch spring 30 predetermined breakdown torques, for example be stuck in the workpiece and cause by the cutter 17 that rotates, then locking ball 26 is radially outward pressed in by taper locking recess 28 under clutch ring 29 opposing clutch springs 30 axially movable situations, in locking recess 28, deviate from by hammer pipe 15 (Fig. 4) and from now on clutch sleeve pipe 25 can rotate relative to hammering pipe 15 into shape.
If hand held power machine is lifted from workpiece, then disappear by the axial compressive force that drift 23 acts on the hammer pipe 15, and back-moving spring 40 moves on the idle position shown in Fig. 3 hammer pipe 15 by spring holder 32 by cutter 17. Radial hole 43,44 skids off from sliding bearing 36 thus, outwards opens so that comprise the space of air cushion 22 between piston 20 and impact bolt 21.By opening of air cushion space, piston 20 can not aspirate again and impact bolt 21.Impact bolt 21 and drift 23 and be arranged in the idle position.
Replace described single type hammer pipe 15, also can be with the hammer pipe of a two-piece type or multi-piece type rotatable and axial restraint ground or axially movably be bearing in the housing 11.In at known, beginning part described hand held power machine, for example the hammer tube portions integrally carry cutter bearing part-peg graft mutually before two hammer tube portions-wherein, but connect rigidly each other now.Have the known hand held power machine of two-piece type hammer pipe relatively, the hammer pipe of manufacturing here now is favourable substantially on cost, because two rotatable each other contact-making surfaces that need not to grind hammer pipe each several part thus that reach of hammer tube portion.
But also axial restraint ground setting and can be made to single type or multi-piece type of hammer pipe 15 in described hand held power machine.But will lose simple, above-described " the bushing type control " that is used for the air cushion space is opened.
Claims (15)
1. hand held power machine, have: one is rotatably supported in hammer pipe (15) in the housing (11), that be used for driving rotatably cutter receiver (16); That can drive electrically, as to be used for driving rotatably hammer pipe (a 15) driven wheel (14); A clutch that is rotationally connected (24) that when breakdown torque is exceeded, interrupts cutter receiver (16), this clutch has two transferring elements by transmitting torque and forms the clutch part that cooperates, one of them clutch part is hammer pipe (15) or parts that are connected with hammer pipe (15), wherein, another clutch part is a clutch sleeve pipe (25) that is engaged in slidably on the hammer pipe (15), this clutch sleeve pipe can be connected into being rotationally connected of rigidity with driven wheel (14), it is characterized in that: connecting by a conversion ring (39) between clutch sleeve pipe (25) and the driven wheel (14) realizes that this conversion ring cooperates with axial tooth structure (a 37) formation that is configured on the clutch sleeve pipe (25) by an adapter ring (46) with axial tooth structure (38); Conversion ring (39) connects by moving axially selectively not have with driven wheel (14) or housing (11) with relatively rotating.
2. hand held power machine according to claim 1 is characterized in that: clutch sleeve pipe (25) has some and has some and this stagger as one man locking recess (28) of setting with targeting part and hammer pipe (15) that angle of circumference is provided with each other with staggering; Transferring elements radially be maintained at movably in these targeting parts and on the one hand shape sink in these locking recesses (28) and the excircle ground that exceeds clutch sleeve pipe (25) on the other hand stretches out sealedly; A clutch ring (29) is pressed on stretching out on the zone of transferring elements in this wise by clutch spring (30), makes a footpath upwards inwardly act on the described transferring elements towards the directed force component of hammer pipe (15).
3. hand held power machine according to claim 2 is characterized in that: clutch ring (29) is engaged on the clutch sleeve pipe (25) slidably and has one by touching the inner conical surface (291) on these transferring elements; Clutch spring (30) is configured to a stage clip that surrounds hammer pipe (15) with one heart, and a side of this stage clip is supported on the end that deviates from inner conical surface (291) of clutch ring (29) and opposite side is supported on the hammer pipe (15).
4. hand held power machine according to claim 3 is characterized in that: clutch sleeve pipe (25) is clamped on the radially shoulder (31) that is configured on the hammer pipe (15) via clutch ring (29) and these transferring elements by clutch spring (30).
5. according to each described hand held power machine in the claim 2 to 4, it is characterized in that: these transferring elements are locking ball (26), they are received in respectively in the radial hole (27) that is opened on the clutch sleeve pipe (25), and the bore dia of these radial holes is a bit larger tham the locking bulb diameter; Locking recess (28) in the hammer pipe (15) is configured to have the truncated cone shape of the clean cross section that reduces towards the locking recess floor.
6. according to each described hand held power machine in the claim 1 to 4, it is characterized in that: clutch sleeve pipe (25) is received in the sliding bearing (36) that is fixed in the housing (11).
7. according to each described hand held power machine in the claim 1 to 4, it is characterized in that: the mechanical axis of hammer pipe (a 15) back-moving spring of opposing (40) is in being bearing in housing (11) movably; Being configured in backstop on the housing (11) and an anti-backstop that is configured on the hammer pipe (15) by two limits this and moves axially, for the beater mechanism (18) that is located in the hammer pipe (15), backstop is determining under the situation of hammer pipe (15) no axial load that backstop behind an idle position and one manages (15) at hammer and be subjected to have determined an operating position under the situation of axial load before one of them.
8. hand held power machine according to claim 7 is characterized in that: preceding backstop receives the annular shoulder (41) that rolling bearing (35) constitutes and back backstop is configured in by in the housing (11) hammer pipe (15), that be fixed in the housing (11) by one and constitutes in the forefoot area of the close cutter receiver (16) of hammer pipe (15).
9. hand held power machine according to claim 7 is characterized in that: this anti-backstop is made of a spring holder (32), and this spring holder is set at hammer pipe (15) and upward and by clutch spring (30) is pressed on the radially shoulder that is configured on the hammer pipe (15).
10. hand held power machine according to claim 7, it is characterized in that: back-moving spring (40) is configured to stage clip, this stage clip surround with one heart hammer pipe (15) and a side upper support spring holder (32) go up and in the opposite side upper support on a radially shoulder (42) that is configured on the housing (11).
11. hand held power machine according to claim 7, it is characterized in that: beater mechanism (18) be configured to air cushion type impact mechanism and have that be directed in the pipe at hammer, a translation ground driven piston (20) and one spaced with piston (20), in hammer pipe (15), axially be directed to movably, act on the impact bolt (21) on the cutter, between piston and impact bolt, surround an air cushion (22); In the air cushion zone, reach the radial hole (43 that in clutch sleeve pipe (25), is provided with unanimity at hammer pipe (15), 44), these radial holes are arranged on the mobile route of hammer pipe (15) so in phase, make that they are covered by sliding bearing (36) and manage (15) they are opened owing to leaving from sliding bearing (36) when being arranged in the idle position when hammering into shape when being arranged in the operating position when hammer pipe (15).
12. hand held power machine according to claim 1 is characterized in that: described hand held power machine is hammer drill and/or jump bit.
13. hand held power machine according to claim 1 is characterized in that: the described axial tooth structure (37) that is configured on the clutch sleeve pipe (25) is built on the rear sleeve section that deviates from clutch ring (29) of clutch sleeve pipe (25).
14. hand held power machine according to claim 5 is characterized in that: described radial hole is opened on the clutch sleeve pipe (25) with being staggered the same circumference angle each other.
15. hand held power machine according to claim 9 is characterized in that: this spring holder is pressed on the collar (34) that is received in the cannelure (33) by clutch spring (30).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410047470 DE102004047470A1 (en) | 2004-09-30 | 2004-09-30 | Hand tool, in particular drill and / or percussion hammer |
| DE102004047470.2 | 2004-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101031393A CN101031393A (en) | 2007-09-05 |
| CN100544896C true CN100544896C (en) | 2009-09-30 |
Family
ID=35045137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800333827A Expired - Fee Related CN100544896C (en) | 2004-09-30 | 2005-07-22 | Hand held power machine, especially hammer drill and/or jump bit |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1819486A1 (en) |
| JP (1) | JP4778516B2 (en) |
| CN (1) | CN100544896C (en) |
| DE (1) | DE102004047470A1 (en) |
| WO (1) | WO2006034899A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103221185A (en) * | 2010-11-29 | 2013-07-24 | 罗伯特·博世有限公司 | Hammer mechanism |
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| DE102005019710A1 (en) * | 2005-04-28 | 2006-11-09 | Robert Bosch Gmbh | Hand tools percussion unit |
| DE102006000252A1 (en) * | 2006-05-30 | 2007-12-06 | Hilti Ag | Hand tool with slip clutch |
| DE102007000365A1 (en) | 2007-07-04 | 2009-01-08 | Hilti Aktiengesellschaft | Hand tool with friction clutch |
| DE102007050805A1 (en) | 2007-10-24 | 2009-04-30 | Robert Bosch Gmbh | Hand tool |
| DE102008000486A1 (en) | 2008-03-03 | 2009-09-10 | Robert Bosch Gmbh | Hand tool |
| DE102008022454B4 (en) * | 2008-05-08 | 2014-06-26 | Aeg Electric Tools Gmbh | Rotary Hammer |
| JP5171484B2 (en) * | 2008-08-29 | 2013-03-27 | 株式会社マキタ | Impact tool |
| DE102009045656A1 (en) * | 2009-10-14 | 2011-04-21 | Robert Bosch Gmbh | Drilling and/or chipping hammer device, has puncher support device including puncher brake unit, storage unit storing puncher brake unit movably relative to housing unit, and guiding unit partially formed from hammer tube |
| DE102011081617A1 (en) * | 2011-08-26 | 2013-02-28 | Hilti Aktiengesellschaft | Hand-held machine tool |
| JP2013091117A (en) * | 2011-10-24 | 2013-05-16 | Makita Corp | Striking tool |
| CN103831795B (en) * | 2012-11-26 | 2016-09-14 | 苏州宝时得电动工具有限公司 | Hand-held tool |
| DE102013212520A1 (en) * | 2013-06-27 | 2014-12-31 | Robert Bosch Gmbh | Hand tools percussion |
| JP6380560B2 (en) * | 2015-01-28 | 2018-08-29 | 工機ホールディングス株式会社 | Impact tool |
| EP3900881A1 (en) * | 2020-04-23 | 2021-10-27 | Hilti Aktiengesellschaft | Electric hand tool with ball locking coupling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3804414A1 (en) * | 1988-02-12 | 1989-08-24 | Hilti Ag | Hammer drill with ball catch clutch |
| DE3807308A1 (en) * | 1988-03-05 | 1989-09-14 | Licentia Gmbh | Radially acting safety friction clutch of a power tool |
| DE3844311A1 (en) * | 1988-12-30 | 1990-07-05 | Bosch Gmbh Robert | DRILLING MACHINE |
| DE4100185A1 (en) * | 1991-01-05 | 1992-07-09 | Bosch Gmbh Robert | HAND MACHINE TOOL WITH SAFETY CLUTCH |
| JP2549578Y2 (en) * | 1991-11-14 | 1997-09-30 | 日立工機株式会社 | Regulation torque switching mechanism for impact tools |
| JP2570633Y2 (en) * | 1992-06-19 | 1998-05-06 | 日立工機株式会社 | Impact tool |
| JP2602411Y2 (en) * | 1993-11-26 | 2000-01-17 | 日立工機株式会社 | Switching mechanism of impact tool |
| DE4426305C2 (en) * | 1994-07-25 | 1997-03-06 | Hilti Ag | Adaptive slip clutch |
| DE19724531B4 (en) * | 1997-06-11 | 2005-07-14 | Robert Bosch Gmbh | Rotary Hammer |
| DE19810088C1 (en) * | 1998-03-10 | 1999-08-26 | Bosch Gmbh Robert | Hammer and boring drill |
| DE19933972A1 (en) * | 1999-07-20 | 2001-01-25 | Bosch Gmbh Robert | Hammer drill or hammer |
| DE10205030A1 (en) * | 2002-02-07 | 2003-08-21 | Hilti Ag | Operating mode switching unit of a hand machine tool |
| EP2390062B1 (en) * | 2002-09-13 | 2017-03-08 | Black & Decker Inc. | Rotary Tool |
| GB2394516A (en) * | 2002-10-23 | 2004-04-28 | Black & Decker Inc | Power tool |
-
2004
- 2004-09-30 DE DE200410047470 patent/DE102004047470A1/en not_active Withdrawn
-
2005
- 2005-07-22 CN CNB2005800333827A patent/CN100544896C/en not_active Expired - Fee Related
- 2005-07-22 EP EP05771980A patent/EP1819486A1/en not_active Withdrawn
- 2005-07-22 WO PCT/EP2005/053584 patent/WO2006034899A1/en active Application Filing
- 2005-07-22 JP JP2007533973A patent/JP4778516B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103221185A (en) * | 2010-11-29 | 2013-07-24 | 罗伯特·博世有限公司 | Hammer mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101031393A (en) | 2007-09-05 |
| JP2008514440A (en) | 2008-05-08 |
| EP1819486A1 (en) | 2007-08-22 |
| JP4778516B2 (en) | 2011-09-21 |
| DE102004047470A1 (en) | 2006-04-06 |
| WO2006034899A1 (en) | 2006-04-06 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20090930 Termination date: 20160722 |