AU2002357469B2 - Tool holder - Google Patents
Tool holder Download PDFInfo
- Publication number
- AU2002357469B2 AU2002357469B2 AU2002357469A AU2002357469A AU2002357469B2 AU 2002357469 B2 AU2002357469 B2 AU 2002357469B2 AU 2002357469 A AU2002357469 A AU 2002357469A AU 2002357469 A AU2002357469 A AU 2002357469A AU 2002357469 B2 AU2002357469 B2 AU 2002357469B2
- Authority
- AU
- Australia
- Prior art keywords
- tool holder
- tool
- sleeve
- spindle
- holder according
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/06—Means for driving the impulse member
- B25D11/062—Means for driving the impulse member comprising a wobbling mechanism, swash plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
- B25D17/084—Rotating chucks or sockets
- B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of 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
- B25D2216/0076—Angular position of the chisel modifiable by hand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/003—Details relating to chucks with radially movable locking elements
- B25D2217/0038—Locking members of special shape
- B25D2217/0042—Ball-shaped locking members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Gripping On Spindles (AREA)
- Saccharide Compounds (AREA)
- Braking Systems And Boosters (AREA)
- Valve Device For Special Equipments (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Drilling Tools (AREA)
Abstract
A drilling and/or hammering tool which includes a hollow spindle (1) and a tool holder (10) that can be attached to an end (18) of the spindle and removed therefrom. The tool holder comprises a manually actuable sleeve (40) in which components of the tool holder are held within the sleeve by a snap ring (100) which snap ring is fitted within the sleeve. The snap ring has at least one resilient arm (102) and the sleeve has a corresponding number of holes (105) which extend to the outwardly facing surface of the sleeve. The arms are arranged such that each arm is engageable with a corresponding through hole in a snap fit and each arm and hole cooperate so that the portion (104) of each arm can be viewed from the surface of the sleeve appears in the shape of a symbol.
Description
WO 03/035330 PCT/EP02/11928 1 TOOL HOLDER This invention relates a tool holder for a power tool, in particular a drilling and/or hammering tool.
Such tool holders are mounted at the forward end of the drilling and/or hammering tool and are arranged to releasably lock a tool or bit within them. In a drilling tool or in a hammering tool with a rotary mode, the tool holder will generally be rotatingly driven, for example by a spindle of the hammering and/or drilling tool, and the tool holder will rotatingly drive the tool or bit locked within it. Where the tool holder is used on a hammering tool, the tool or bit is mounted within the tool holder so as to be able to undergo limited reciprocation and during operation in a hammering mode, a hammering mechanism of the hammer will impart repeated impacts to the tool or bit mounted within the tool holder. Mechanisms including a manually axially slideable actuating sleeve and/or a manually rotatable actuating sleeve are well known in the art on tool holders for enabling locking or release of a tool or bit within a tool holder.
The tool holder itself often will need to be capable of being released from the drilling and/or hammering tool in order to allow it to be changed, for example when a different type of tool or bit is to be held in the hammer. In this case the tool holder body or a spindle of the drilling and/or hammering tool is provided with one or more locking elements, for example locking balls, that are movable in a radial direction (with respect to the axis of the spindle) to retain the tool holder body on the spindle, or to allow release of the tool holder body therefrom. Mechanisms including a manually axially slideable actuating sleeve and/or a manually rotatable actuating sleeve are well known in the art on tool holders for enabling locking or release or relative rotation of a tool holder with respect to a spindle of the hammer. It should be noted that such actuating sleeves may remain on the spindle of a drilling and or hammering tool when the remainder of the tool holder is removed from the spindle.
It is often required to provide an axial end stop within tool holder actuating sleeves for fixing components of the tool holder within the sleeves. Such axial end stops are generally provided by using circlips. Circlips are fitted within an annular recess formed within the radially inwardly facing surface of an actuating sleeve, so that a portion of the circlip extends radially inwardly of the radially inwardly facing surface of the sleeve. However, circlips are difficult to assemble and if they are CONFIRMATION COPY P\OPERMRMl244IM40 Ispadc-8I160 00 -2- Z assembled incorrectly, they can prevent the tool holder from operating correctly and can IDcause damage to components of the tool holder.
Also, it is often required to mark the external surface of a tool holder actuating sleeve with symbols indicating, for example, the direction in which the sleeve is moveable or a locked position of the sleeve. These markings may be provided by n painting or by making the markings in a contrasting colour to the colour of plastic of the N actuating sleeve.
According to the present invention, there is provided a tool holder for a power tool comprising a manually actuable sleeve wherein components of the tool holder are held within the sleeve by a snap ring which snap ring is fitted within the sleeve, wherein the snap ring has at least one resilient arm and the sleeve has a corresponding number of recesses formed in a radially inwardly facing surface of the sleeve which recesses can be viewed from a radially outwardly facing surface of the sleeve, arranged such that the or each arm is engageable with a corresponding recess in a snap fit, and each arm and recess cooperate so that the portion of the or each arm which can be viewed from the radially outwardly facing surface of the sleeve appears in the shape of a symbol.
The tool may be a drilling or hammering tool.
Thus, the snap ring has the dual function of maintaining components within the manually actuable sleeve and of providing an indication of an instructive symbol or icon on the external surface of the manually actuable sleeve which is informative to the user of the drilling and/or hammering tool. For this purpose, the shape of the symbol or the outline of the shape may be formed in a contrasting colour to the colour of the external surface of the sleeve. In particular the snap ring may be made from a material, for example a plastics material, of a different colour to the colour of material, for example a plastics material, from which the sleeve is made.
In a preferred embodiment at least the radially outermost part of the or each recess is formed in the shape of the symbol. It is also preferred that the radially outermost part of the or each arm is formed in the shape of the symbol to fit the corresponding recess.
P:\OPERMRF\1244( 4()l Isp dwoc.7/ /2(Kl 00
O
0 -2A- In order to be viewed from the radially outwardly facing surface of the manually \0 actuable sleeve, the recesses may comprise a through hole which extends to the radially 0 outwardly facing surface of the sleeve. Alternatively, a transparent cover could surround the radially outermost portion of the recesses. To effectively fit the snap ring 5 to the manually actuable sleeve, it is preferred that the or each resilient arm WO 03/035330 PCT/EP02/11928 3 is formed with a latch element in the shape of the symbol and the latch element is received in a snap fit within a correspondingly shaped recess. The snap fit between each resilient arm and the corresponding recess may be reinforced by fitting a peg element in a space located radially inwardly of the resilient arm.
The symbol, may be for example, an arrow designating the direction in which the manually actuable sleeve can be moved.
The manually actuable sleeve may be actuable to fit and/or remove a tool or bit from the tool holder and/or the manually actuable sleeve may be actuable to fit, remove or rotate the tool holder relative to a power tool.
According to the present invention there is also provided a drilling and/or hammering tool comprising a spindle on which a tool holder of the type described above is fitted. The tool may be a hammering tool wherein the tool holder can be rotatingly driven by the spindle and the spindle contains a hammering mechanism which can generate repeated impacts on a rearward end of a tool or bit mounted within the tool holder.
One form of tool holder in accordance with the present invention will now be described by way of example, with reference to the accompanying drawings, in which: Figure 1 is a longitudinal cross-section of a tool holder according to the present invention mounted on the forward end of a spindle of a rotary hammer; Figure 2 is a disassembled perspective view of a manually operated sleeve of the tool holder of Figure 1; and Figure 3 is a disassembled perspective view on an alternative embodiment of a manually operated sleeve of the tool holder of Figure 1.
Figure 1 shows a tool holder that can be releasably mounted at the forward end 18 of a spindle 1 of a rotary hammer. The hammer includes a spindle 1 that is provided with an air-cushion hammer mechanism comprising a piston, that is caused to reciprocate within the spindle by a swash or wobble mechanism driven by a motor.
Reciprocating motion of the piston causes a ram to reciprocate, which strikes a beatpiece 8. The beatpiece 8 strikes the shank of a drill or chisel bit (not shown) that is held in the bore of the tool holder 10 in known manner. In a combination rotary hammer mode, the tool holder 10 is also rotatingly driven by the spindle 1. Such hammers are well known in the art.
CONFIRMATION COPY WO 03/035330 PCT/EP02/11928 4 The tool holder 10 as shown is designed to hold a bit that has a pair of closedend elongate recesses for receiving a locking element 20 for retaining the bit in the tool holder while allowing some degree of axial movement, and a pair of open-ended grooves for receiving rotary driving splines 12, such bits being of a design referred to as "SDS Plus", but tool holders for other designs such as SDS Max, hex shank etc.
may also be employed. The tool holder includes a hollow, generally cylindrical tool holder body 14 that has a rearward end 16 that can be inserted into the forward end 18 of the hammer spindle 1. A locking ball 20 for retaining a tool or bit in the tool holder 10 is located in an elongate aperture 22 in the tool holder body 14, and is held in a position in which it extends into the bore of the tool holder body 14 (and into the recess of any bit held therein) by means of locking ring 24. The locking ring 24 is located in an axially slidable release sleeve 26 which can be moved rearwardly against the bias of a spring 28 to allow the locking ball 20 to move radially outwardly into recess 30 in order to allow removal of the bit.
The tool holder body 14 is held in the spindle 1 by means of four locking balls 32 located in apertures 34 in the spindle wall. The apertures 34 are slightly tapered in order to prevent the balls falling into the bore of the spindle 1, and the balls are held in the apertures by means of a snap ring 36. The locking balls 32 can move to a limited extent in the radial direction between a radially outermost position which allows attachment and removal of the tool holder 10, and a radially innermnnost position in which the tool holder is retained on the spindle. The tool holder body 14 has four depressions 38 in its outer surface for receiving the locking balls 32 when the tool holder 10 is retained on the spindle.
The tool holder 10 is provided with a manually operable sleeve 40 that can be rotated about the tool holder body 14 to a limited extent, and which houses a locking ring 42 that is positioned about the locking balls 32, and is held in the sleeve 40 by a snap ring 100. In a first rotational position of the locking ring 42 with respect to the locking balls (position shown in Figure 1) the tool holder 10 is locked on the spindle 1. In a second rotational position of the locking ring 42 with respect to the locking balls, pockets in the locking ring 42 are aligned radially outwardly of the locking balls 32. This enables the locking balls 32 to move radially outwardly to allow insertion of the tool holder main body 14 completely into the forward end 18 of the spindle or to allow removal of the tool holder main body 14 from the forward end 18 of the spindle.
The sleeve (40) is manually rotated by a user to rotate the locking ring (42) between the first and second rotational positions.
CONFIRMATION COPY WO 03/035330 PCT/EP02/11928 The locking ring 42 is held within the interior of the sleeve 40 by means of a retention or snap ring 100 having a generally shaped circumferential crosssection. The retention ring 100 is provided with four resilient flap or arm portions 102 which fit inside a corresponding recess 39 formed in the interior of the sleeve Each flap portion 102 is provided with a small protuberance 104, as shown in the shape of a double-headed arrow. The protruberances 104 will snap fit due to the resilience of the flap portions 102 inside a correspondingly shaped through hole 105 in the wall of the sleeve in order to provide a positive engagement of the retention ring 100 in the sleeve 40. The snap ring 100 is made from a plastics material made of a first colour and the sleeve 40 is made from a plastics material of a second contrasting colour and so the double headed arrows 104 formed on the snap ring 100 can be viewed from the exterior of the sleeve to inform a user that the sleeve 40 is actuated by rotating it.
hI the above embodiment the snap ring 100 is used in relation to an actuating sleeve 40 which is actuable to enable the tool holder to be mounted on or removed from the spindle 1 of the hammer. The snap ring has the dual function of fixing the locking ring 42 within the sleeve 40 and of providing an external indication on the sleeve 40 to a user that the sleeve is actuable by rotation.
Such a snap ring can also be used in an actuating sleeve which is actuable to enable a relative rotation between the tool holder and a spindle of a hammering tool in order to move the tool holder to a desired orientation with respect to the hammer.
Such a snap ring can also be used on a tool release sleeve, of a type similar to the sleeve 26, which is actuable to enable insertion of a tool or bit into the tool holder and/or removal of a tool or bit from the tool holder. The snap ring could again have a dual function, in this case of providing an axial end stop for fixing components within the tool release sleeve and for providing an external indication of the direction in which the tool release sleeve is actuable. For a tool release sleeve which is axially slideable on the tool holder main body 14 then the protruberances 104 on the resilient flap portions 102 and the correspondingly shaped through holes in the tool release sleeve would be formed as double headed arrows pointing in a direction parallel to the longitudinal axis of the tool holder main body 14.
It should further be noted that it is known to have a tool holder which is removeably mounted on the spindle of a hammer comprising a manually actuable sleeve which is actuable to fit the tool holder on the spindle or remove the tool holder CONFIRMATION COPY ;P OER.1RF%44)64O Ip do.416/21(JX 00 -6from the spindle, in which the actuating sleeve remains on the spindle when the INO remainder of the tool holder is removed. Such an actuating sleeve may also be provided with a snap ring of the type described above, which snap ring provides the dual function of maintaining components within the actuating sleeve and providing an external indication to a user of how the actuating sleeve is actuated.
t An alternative design to that shown in Figure 2 is shown in Figure 3, with like parts identified by like numerals. Again a retention ring 100 is provided with four Cresilient flap or arm portions 102 which fit inside a corresponding recess 39 formed in the interior of the sleeve 40. The protruberances 104 will snap fit due to the resilience of the flap portions 102 inside a correspondingly shaped through hole 105 in the wall of the sleeve in order to provide a positive engagement of the retention ring 100 in the sleeve 40. A set of pegs 101 are provided, with one peg for each resilient arm portion 102 in order to reinforce the positive engagement between the retention ring 100 and the sleeve 40. After the snap ring 100 has been snap fitted into place within the sleeve the pegs are inserted axially (with respect to the axis of the tool holder 10) through a hole 103 provided in each arm portion and into a space between each arm portion 102 and the main body of the ring 100. The pegs 101 are U-shaped and are made of a resilient material and the pegs are elastically deformed by moving the arms of each U-shaped peg together in order to fit the pegs through the holes 103. Once the pegs are position through the holes 103 and the arms of the peg are released, the pegs resume their usual shape and a pair of rearwardly facing shoulders 101a, 101b on each peg engage the edge of the holes 103 in the arm portions 102 in order to hold the pegs 101 in place. The pegs 101 limit the radially inward movement of the arm portions 102 towards the main body of the snap ring and so reinforce the connection between the snap ring 100 and the sleeve While various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not by way of limitation. It will be apparent to a person skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention. Thus, the present invention should not be limited by any of the above described exemplary embodiments.
P.\OPERMRF1124M41() Isw dWCKI6'2IOX) 00 -7- Z The reference in this specification to any prior publication (or information IDderived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.
SThroughout this specification and the claims which follow, unless the context N requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
The reference numerals in the following claims do not in any way limit the scope of the respective claims.
Claims (13)
- 2. A tool holder according to claim 1 wherein the shape of the symbol is formed in a contrasting colour to the colour of the external surface of the sleeve.
- 3. A tool holder according to claim 1 or claim 2 wherein the snap ring is made from a material of a different colour to the colour of material from which the sleeve is made.
- 4. A tool holder according to claim 3 wherein the snap ring and the sleeve are made from a plastics material. A tool holder according to any one of claims 1 to 4 wherein at least the radially outermost part of the or each recess (1 05) is formed in the shape of the symbol.
- 6. A tool holder according to claim 5 wherein the radially outermost portion of the or each arm (104) is formed in the shape of the symbol to fit the corresponding recess.
- 7. A tool holder according to any one of the preceding claims wherein the recesses in the actuating sleeve comprise a through hole (105) which extends to the radially outwardly facing surface of the sleeve.
- 8. A tool holder according to claim 7 wherein the radially outermost portion (104) of the or each arm extending through the corresponding through hole is in the shape of the symbol.
- 9. A tool holder according to any one of the preceding claims wherein the or each resilient arm (102) is formed with a latch element (104) in the shape of the symbol and the latch element is received in a snap fit within a correspondingly shaped recess (105).
- 10. A tool holder according to any one of the preceding claims wherein the symbol is an arrow designating the direction in which the manually actuable sleeve can be moved. P:IOPERkMRI'2440MI) Ill dO-H/62(II 00 -9- ;Z 11. A tool holder according to any one of the preceding claims wherein the manually I\D actuable sleeve is actuable to fit and/or remove a tool or bit from the tool holder.
- 12. A tool holder according to any one of the preceding claims wherein the manually actuable sleeve is actuable to fit the tool holder to the power tool, to remove the tool holder from the power tool or to rotate the tool holder to a desired orientation with respect t¢ to the power tool. C 13. A tool holder according to any one of the preceding claims wherein the snap fit between each resilient arm (102) and the corresponding recess (105) is reinforced by fitting a peg element (101) in a space located radially inwardly of the resilient arm.
- 14. A drilling and/or hammering tool comprising a spindle on which a tool holder according to any one of the preceding claims is fitted. A drilling and/or hammering tool according to claim 14 when dependent on claim 12 wherein the tool holder is releasably mounted on the spindle and the manually actuable sleeve remains on the spindle when the remainder of the tool holder is removed from the spindle.
- 16. A hammering tool according to any one of claim 14 or 15 wherein the tool can be rotatingly driven by the spindle and the spindle contains a hammering mechanism (18) which can generate repeated impacts on a rearward end of a tool or bit mounted within the tool holder
- 17. A tool holder for a power tool substantially as hereinbefore described with reference to the drawings and/or Examples.
- 18. A drilling and/or hammering tool substantially as hereinbefore described with reference to the drawings and/or Examples.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0125749.2 | 2001-10-26 | ||
GBGB0125749.2A GB0125749D0 (en) | 2001-10-26 | 2001-10-26 | Power tool |
GBGB0211184.7A GB0211184D0 (en) | 2001-10-26 | 2002-05-16 | Drilling and/or hammering tool |
GB0211184.7 | 2002-05-16 | ||
PCT/EP2002/011928 WO2003035330A1 (en) | 2001-10-26 | 2002-10-25 | Tool holder |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2002357469A1 AU2002357469A1 (en) | 2003-07-03 |
AU2002357469B2 true AU2002357469B2 (en) | 2008-09-11 |
Family
ID=9924601
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2002350626A Ceased AU2002350626B2 (en) | 2001-10-26 | 2002-10-25 | Drilling and/or hammering tool |
AU2002357469A Ceased AU2002357469B2 (en) | 2001-10-26 | 2002-10-25 | Tool holder |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2002350626A Ceased AU2002350626B2 (en) | 2001-10-26 | 2002-10-25 | Drilling and/or hammering tool |
Country Status (6)
Country | Link |
---|---|
EP (2) | EP1619000B1 (en) |
CN (3) | CN101058178B (en) |
AT (2) | ATE502721T1 (en) |
AU (2) | AU2002350626B2 (en) |
DE (2) | DE60239553D1 (en) |
GB (3) | GB0125749D0 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007001494B3 (en) * | 2007-01-10 | 2008-07-10 | Aeg Electric Tools Gmbh | Hand-held hammer drill |
CN101733736B (en) * | 2008-11-07 | 2011-12-07 | 苏州宝时得电动工具有限公司 | Chuck and power tool using same |
DE102009027560A1 (en) * | 2009-07-09 | 2011-01-13 | Robert Bosch Gmbh | Hammer drill and / or chisel device |
CN201619095U (en) * | 2010-01-21 | 2010-11-03 | 浙江海王电器有限公司 | Quick clamping device for electric hammer |
DE102013216516A1 (en) * | 2013-08-21 | 2015-02-26 | Robert Bosch Gmbh | Hand tools tool holder |
CN105328645A (en) * | 2015-10-23 | 2016-02-17 | 江苏恒丰电动工具有限公司 | Quick chuck for electric hammer |
GB201601856D0 (en) * | 2016-02-02 | 2016-03-16 | Black & Decker Inc | Tool holder connection system |
CN109848926B (en) * | 2017-11-30 | 2022-01-04 | 南京德朔实业有限公司 | Electric tool |
TWI648113B (en) * | 2018-06-14 | 2019-01-21 | 盧燦陽 | Hammer drill |
EP3698907B1 (en) * | 2019-02-20 | 2022-08-10 | Llambrich Precisión, S.L. | A chuck having a locking device |
US11759280B2 (en) * | 2020-02-06 | 2023-09-19 | Aesculap Ag | Surgical instrumentation for fixation of cervical spine |
CN116729673B (en) * | 2023-08-09 | 2023-10-27 | 沈阳诺曼科技有限公司 | Unmanned aerial vehicle frame subassembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2102718A (en) * | 1981-07-24 | 1983-02-09 | Black & Decker Inc | Improvements in or relating to rotary percussive drills |
US5398946A (en) * | 1993-12-29 | 1995-03-21 | Poly-Tech Industries | Chuck having one-step lock and release |
US6668941B2 (en) * | 2001-11-28 | 2003-12-30 | Credo Technology Corporation | Screw holding and driving device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4273344A (en) * | 1978-08-08 | 1981-06-16 | The Boeing Company | Motor quick-change chuck system for tool having cylindrically shaped adapter portion |
DE3310371A1 (en) * | 1983-03-22 | 1984-10-11 | Hilti Ag, Schaan | HAND DEVICE, LIKE DRILL, DRILL, SCREWDRIVER AND THE LIKE |
CN1005250B (en) * | 1985-08-30 | 1989-09-27 | 利森蒂亚专利管理有限公司 | Tool clamp fitted on electricity and wind-powered impact driller |
DE3636026A1 (en) * | 1986-10-23 | 1988-04-28 | Hilti Ag | HAND DEVICE WITH TOOL HOLDER |
DE3636027A1 (en) * | 1986-10-23 | 1988-04-28 | Hilti Ag | HAND DEVICE WITH DETACHABLE TOOL HOLDER |
DE4100186A1 (en) * | 1991-01-05 | 1992-07-09 | Bosch Gmbh Robert | HAND MACHINE TOOL WITH REMOVABLE TOOL HOLDER |
US5437465A (en) * | 1993-10-22 | 1995-08-01 | Atlas Copco Elektrowerkzeuge Gmbh | Tool changing device on a hand-operated machine tool |
DE19503525B4 (en) * | 1995-02-03 | 2004-10-28 | Robert Bosch Gmbh | Hand tool, in particular drill and / or hammer |
DE19540396A1 (en) * | 1995-10-30 | 1997-05-07 | Hilti Ag | Drilling and / or chiseling device |
DE19540391A1 (en) * | 1995-10-30 | 1997-05-07 | Hilti Ag | Drilling and chiseling device |
DE19621610B4 (en) | 1996-05-30 | 2016-06-23 | Robert Bosch Gmbh | Device for changing the tool holder on a hand tool |
US6053675A (en) * | 1998-06-26 | 2000-04-25 | Black & Decker Inc. | Quick-acting tool bit holder |
US7222862B2 (en) * | 2001-10-26 | 2007-05-29 | Black & Decker Inc. | Tool holder |
-
2001
- 2001-10-26 GB GBGB0125749.2A patent/GB0125749D0/en not_active Ceased
-
2002
- 2002-05-16 GB GBGB0211184.7A patent/GB0211184D0/en not_active Ceased
- 2002-06-26 GB GB0214774A patent/GB2381228A/en not_active Withdrawn
- 2002-10-25 AU AU2002350626A patent/AU2002350626B2/en not_active Ceased
- 2002-10-25 CN CN2007100936736A patent/CN101058178B/en not_active Expired - Fee Related
- 2002-10-25 EP EP05016264.3A patent/EP1619000B1/en not_active Expired - Lifetime
- 2002-10-25 AT AT02785307T patent/ATE502721T1/en not_active IP Right Cessation
- 2002-10-25 AT AT02785306T patent/ATE495858T1/en not_active IP Right Cessation
- 2002-10-25 CN CN2009101309064A patent/CN101633056B/en not_active Expired - Fee Related
- 2002-10-25 CN CNB02825595XA patent/CN100366398C/en not_active Expired - Fee Related
- 2002-10-25 DE DE60239553T patent/DE60239553D1/en not_active Expired - Lifetime
- 2002-10-25 AU AU2002357469A patent/AU2002357469B2/en not_active Ceased
- 2002-10-25 EP EP07112784A patent/EP1849562A3/en not_active Withdrawn
- 2002-10-25 DE DE60239004T patent/DE60239004D1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2102718A (en) * | 1981-07-24 | 1983-02-09 | Black & Decker Inc | Improvements in or relating to rotary percussive drills |
US5398946A (en) * | 1993-12-29 | 1995-03-21 | Poly-Tech Industries | Chuck having one-step lock and release |
US6668941B2 (en) * | 2001-11-28 | 2003-12-30 | Credo Technology Corporation | Screw holding and driving device |
Also Published As
Publication number | Publication date |
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ATE502721T1 (en) | 2011-04-15 |
DE60239004D1 (en) | 2011-03-03 |
DE60239553D1 (en) | 2011-05-05 |
CN100366398C (en) | 2008-02-06 |
EP1849562A2 (en) | 2007-10-31 |
AU2002350626B2 (en) | 2008-09-04 |
CN1735485A (en) | 2006-02-15 |
GB0214774D0 (en) | 2002-08-07 |
CN101633056A (en) | 2010-01-27 |
EP1619000B1 (en) | 2015-08-19 |
CN101058178B (en) | 2010-06-16 |
GB0211184D0 (en) | 2002-06-26 |
GB2381228A (en) | 2003-04-30 |
GB0125749D0 (en) | 2001-12-19 |
CN101058178A (en) | 2007-10-24 |
EP1619000A1 (en) | 2006-01-25 |
EP1849562A3 (en) | 2012-05-02 |
CN101633056B (en) | 2011-11-02 |
ATE495858T1 (en) | 2011-02-15 |
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