CN1071176C - Electric power tools and improved correlation parts thereof - Google Patents
Electric power tools and improved correlation parts thereof Download PDFInfo
- Publication number
- CN1071176C CN1071176C CN98103276A CN98103276A CN1071176C CN 1071176 C CN1071176 C CN 1071176C CN 98103276 A CN98103276 A CN 98103276A CN 98103276 A CN98103276 A CN 98103276A CN 1071176 C CN1071176 C CN 1071176C
- Authority
- CN
- China
- Prior art keywords
- switch
- throw
- output shaft
- tool
- lock device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/022—Spindle-locking devices, e.g. for mounting or removing the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
- Milling, Drilling, And Turning Of Wood (AREA)
- Drilling And Boring (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
A rotary tool (10) of the type which comprises an electric motor (4), which is connected to an output shaft (6) for mounting a variety of interchangeable working tools, is provided with an on/off switch(44) and a shaft lock (38) for securing the output shaft (6) against rotation. The on/off switch (44) is provided with means (46,50) for preventing activation of the shaft lock (38) while the on/off switch (44) is in the on position.
Description
The present invention relates to a kind of throw, be specifically related to a kind of throw and be used to drive a rotary machining tool, as rotating disk, crewdriver attachment, engraving wheel.The present invention be more particularly directed to a kind of turning tool, be used to drive various general rotary machining tools.
What the invention further relates to is a kind of on/off switch that is used for electric tool.
Be used to drive the throw of various general rotary machining tools, comprise a chamber, motor is housed in the chamber, motor directly drives or drives an instrument output shaft by intermediary element.Output shaft has a fixture at the free end that leaves motor, is used for of the multiple rotary machining tool of clamping releasably.
Known clamping element comprises a collet structure (United States Patent (USP) 2218168 is disclosed), and wherein output shaft is a hollow, and front end is equipped with a collet.Outside the chamber of output shaft and collet person extending tool.Various machining tools all have an arbor, and are assemblied on the output shaft by the cover claw component.
In order to take off machining tool from output shaft, driving shaft must be fixed to such an extent that can not rotate.United States Patent (USP) 3873863 has disclosed a kind of locking device, by the pushbutton that extends through the chamber split shed.
Known throw also comprises an on/off switch, is used to control the power supply of motor, this instrument can be without electric wire self-contained battery, also can be to have electric wire and power supply joins.
This known throw has defective, and its on/off switch to motor power supply is independent of the locking device of axle, starts motor in the time of may causing axle locked and causes tool damage.
An object of the present invention is to provide a kind of throw, reduce or eliminate above-mentioned defective substantially.
Another object of the present invention is to provide a kind of improved tool switch for above-mentioned the sort of throw.
According to the throw that has motor of the present invention, described motor is connected with an output shaft that is used to install various replaceable machining tools, and described throw also comprises: an on/off switch that is used to control the supply of electric power of motor; One is used for fixing the shaft lock device that output shaft can not rotate it; A tool switch that is used for operating described on/off switch by motion between a primary importance and second place, described on/off switch connection when described tool switch is in primary importance wherein, and described on/off switch disconnects when described tool switch is in the second place, it is characterized in that, described tool switch comprises a cover, when described tool switch was in described primary importance, described cover covered described shaft lock device basically and prevents that the fixing described output shaft of described shaft lock device from can not rotate it.
According to tool switch of the present invention, it is used for a kind of throw that has an output shaft, described output shaft is used to install various replaceable machining tools, and described throw also comprises: when unloading and subsequently a machining tool is installed described output shaft is fixed the shaft lock device that it can not be rotated for one; And one by the described tool switch on/off switch that motion is operated between a primary importance and second place, described on/off switch connection when described tool switch is in primary importance wherein, and described on/off switch disconnects when described tool switch is in the second place, it is characterized in that, described tool switch comprises a cover, when described tool switch was in described primary importance, described cover covered described shaft lock device basically and prevents that the fixing described output shaft of described shaft lock device from can not rotate it.
The throw most preferred embodiment is described below with reference to accompanying drawings.
Fig. 1 is the perspective view of throw.
Fig. 2 is the throw view, and the part of chamber cuts, to show that the on/off switch is at open position.
Fig. 3 is the view that is similar to Fig. 2, shown in the on/off switch at on-position.
Fig. 4 is the output shaft of throw and the partial enlarged drawing of the locking device of axle.
A kind of throw, integral body is labeled as 10, has a chamber 2, is placed with motor 4 in the chamber, and motor 4 is by comprising the intermediary element driven tool output shaft 6 of electric fan 8.
Output shaft 6 is a hollow, and it is equipped with a jaw 12 at 20 places, end away from motor.
Output shaft 6 and jaw 12 reach chamber 2 outsides.
Jaw 12 has a cylindrical base and a conical nose, and it is the several fore-ends 18 of head band that are put together, and their general slight radial are outward-dipping.The leading section 20 of output shaft 6 is threaded, and is installed in the female jaw nut 22 of a hollow, and jaw nut 22 is around jaw head 16.There is a smooth cone-shaped inner surface screw thread front of jaw nut 22.
Throw 10 is used to drive various machining tools, as rotating disk, crewdriver attachment, engraving wheel or the like.Each machining tool all has an arbor.
When being installed to machining tool on the throw 10, unscrew jaw nut 22.When nut 22 moved forward, the amalgamation fore-end 18 of jaw head was removed because of pushing mutually.The arbor of machining tool injects nut 22 openends, enters in the middle of the leading section 18 of jaw head.Tightening nuts 22 is pressed to the fore-end 18 of jaw 12 together, so that the machining tool arbor is fixed in the output shaft 6 tightly.Because each interelement friction contact, the rotation of output shaft 6 drives jaw 12 and rotates, and rotates thereby drive workpiece 3.In addition, nut 22 makes jaw 12 and machining tool be clamped on the output shaft 6 to machining tool arbor extruding jaw fore-end 18, has strengthened the friction clamping of 12 pairs of machining tool arbors of jaw simultaneously.
Throw 10 has a control button 24, and it stretches out from an opening 26 of chamber 2, the following pin 28 of stretching that control button 24 has a work to be integral.
This throw comprises a control button 24, and it stretches out from an opening of chamber, and button 24 also comprises a handle that stretches out 34 downwards, and handle 34 has a cylindrical body portion 36, and a low level ledge 38 that diameter is less is arranged above it.
Be formed with two grooves 40 on the output shaft 6, disc spring 30 leaves the groove 40 of output shaft with control button 24 bias voltages, makes ledge 38 not interfere normal running.But, when pushing the outer surface 42 of button 24, head on the bias voltage of spring, radially to lower compression handle 34, contact up to the outer surface of ledge 38 with axle 6.When pressing the button 24, firmly grasp and rotation jaw nut 22 rotary output axis 6,, inwardly push button 24 and make protuberance 38 enter groove 40 up to a groove 40 of protuberance 38 driven in registry handles 6.Thereby fixedly output shaft 6 can not rotate it.In the time of fastening output shaft 6, further rotating screw cap 22 just can disclose and take off nut 22.
As shown in Figures 2 and 3, be installed near the inside on/off control button switch in chamber 2 rear portions 44 control on-off functions.Slide switch 46 is installed in the chamber 2 and along chamber 2 horizontal-extendings, it has a radially inner rear flange 48, rear flange 48 adjacent interior buttons 44.Slide switch 46 front ends comprise a cover 50, and cover 50 is installed in the chamber notch 52 at locking device control button 24 rear portions that are right after axle.Cover 50 covers the rear portion at control button 24 for the open front 54 that has of hollow.
When slide switch 46 during at the rear portion, rear flange 48 disengages with inner break-make control button switch 44, the rear of the locking device control button 24 that cover 50 is positioned at spool.Thereby, disconnect the instrument power supply, the locking device control button 24 that the user can engagement shaft.Like this, Zhou locking device just can work and carry out the replacing of instrument and/or nut.When slide switch cover 50 was slided to the front, rear flange 48 contacted with inner on/off control button switch 44 and connects power supply.And cover 50 slides into locking device control button 24 tops of axle fully, to prevent to push the locking device button 24 of axle.The instrument that prevented so unexpectedly starts the locking device of axle when connecting.
Still referring to Fig. 2 and 3, electric fan 8 is contained between instrument output shaft 6 and the motor output shaft 56.Electric fan 8 is installed on the motor output shaft 56, and instrument output shaft 6 is actually a driving shaft that is installed in electric fan 8 openings, and in addition, electric fan 8 insulate, and makes motor 4 and metal tools output shaft 6 and machining tool electric insulation.
Claims (9)
1. throw (10) that has motor (4), described motor (4) is connected with an output shaft (6) that is used to install various replaceable machining tools, and described throw also comprises:
An on/off switch (44) that is used to control the supply of electric power of motor (4);
One is used for fixing output shaft (6) and makes its shaft lock device that can not rotate (34);
A tool switch (46) that is used for operating described on/off switch by motion between a primary importance and second place, wherein when described tool switch (46) described on/off switch (44) connection when being in primary importance, and when described tool switch (46) described on/off switch (44) disconnection when being in the second place, it is characterized in that, described tool switch (46) comprises a cover (50), when described tool switch (46) when being in described primary importance, described cover (50) covers described shaft lock device (34) basically and prevents that the fixing described output shaft (6) of described shaft lock device (34) from can not rotate it.
2. throw as claimed in claim 1 (10) is characterized in that, when described tool switch (46) when being in the described second place, described cover allows near described shaft lock device (34).
3. throw as claimed in claim 1 or 2, described on/off switch (44) are positioned at the inside of a chamber (2) of described throw (10).
4. throw as claimed in claim 3 is characterized in that, described output shaft (6) has a clip claw assembly (12) and is used for fixing machining tool.
5. throw as claimed in claim 4 is characterized in that, described shaft lock device (34) has a ledge (38) in order to engage with groove (40) on the described output shaft (6).
6. throw as claimed in claim 5 is characterized in that, described shaft lock device (34) is started by a control button (24) that stretches out from an opening (26) of described chamber (2), and is radially outward pushed by a disc spring (30).
7. throw as claimed in claim 6 is characterized in that, described tool switch (46) is a slide switch (46), and its end is a cap (50), and the other end is a bead (48).
8. a tool switch (46), it is used for a kind of throw (10) that has an output shaft (6), and described output shaft (6) is used to install various replaceable machining tools, and described throw also comprises:
One makes its shaft lock device that can not rotate (34) when unloading and described output shaft (6) being fixed when a machining tool is installed subsequently; And
One by described tool switch (46) the on/off switch (44) that motion is operated between a primary importance and second place, wherein when described tool switch (46) described on/off switch (44) connection when being in primary importance, and when described tool switch (46) described on/off switch (44) disconnection when being in the second place, it is characterized in that, described tool switch (46) comprises a cover (50), when described tool switch (46) when being in described primary importance, described cover (50) covers described shaft lock device (34) basically and prevents that the fixing described output shaft (6) of described shaft lock device (34) from can not rotate it.
9. tool switch as claimed in claim 8 (46) is characterized in that, when described tool switch (46) when being in the described second place, described cover allows near described shaft lock device (34).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9714258A GB2327054A (en) | 1997-07-08 | 1997-07-08 | Shaft locking |
| GB9714258.2 | 1997-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1204567A CN1204567A (en) | 1999-01-13 |
| CN1071176C true CN1071176C (en) | 2001-09-19 |
Family
ID=10815456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98103276A Expired - Fee Related CN1071176C (en) | 1997-07-08 | 1998-07-08 | Electric power tools and improved correlation parts thereof |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0890420A1 (en) |
| CN (1) | CN1071176C (en) |
| GB (1) | GB2327054A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012040891A1 (en) * | 2010-09-27 | 2012-04-05 | Bosch Power Tools (China) Co., Ltd. | Power tool with interlock system |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19803454B4 (en) | 1998-01-30 | 2018-11-29 | Scintilla Ag | Hand-operated percussion drill with a locking device |
| DE19908300C1 (en) * | 1999-02-26 | 2000-11-09 | Fein C & E | Strap holder for a hand tool |
| DE10029898A1 (en) | 2000-06-17 | 2001-12-20 | Bosch Gmbh Robert | Hand tool; has tool chuck rotated by driven motor and driven shaft and having clamp device and has stop device arranged on driven shaft to secure or release clamp device against casing part |
| CA2348985A1 (en) * | 2000-06-23 | 2001-12-23 | Black & Decker Inc. | Gear and lever spindle lock |
| DE10242738A1 (en) * | 2002-09-13 | 2005-01-20 | Robert Bosch Gmbh | Hand tool machine, in particular angle grinder |
| NL1025144C2 (en) * | 2003-12-30 | 2005-07-04 | Bosch Gmbh Robert | Power tool with double-control switch. |
| US7980325B2 (en) * | 2004-01-16 | 2011-07-19 | Credo Technology Corporation | Rotating shaft locking mechanism |
| SE529928C2 (en) * | 2006-05-09 | 2008-01-08 | Atlas Copco Tools Ab | Portable tool locking device |
| NL1033187C2 (en) * | 2007-01-08 | 2008-07-09 | Bosch Gmbh Robert | Electric tools, such as an angle grinder. |
| US7735575B2 (en) | 2007-11-21 | 2010-06-15 | Black & Decker Inc. | Hammer drill with hard hammer support structure |
| US7717192B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode drill with mode collar |
| US7798245B2 (en) | 2007-11-21 | 2010-09-21 | Black & Decker Inc. | Multi-mode drill with an electronic switching arrangement |
| US7854274B2 (en) | 2007-11-21 | 2010-12-21 | Black & Decker Inc. | Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing |
| US7717191B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode hammer drill with shift lock |
| US7762349B2 (en) | 2007-11-21 | 2010-07-27 | Black & Decker Inc. | Multi-speed drill and transmission with low gear only clutch |
| US7770660B2 (en) | 2007-11-21 | 2010-08-10 | Black & Decker Inc. | Mid-handle drill construction and assembly process |
| DE102010029267A1 (en) * | 2010-05-25 | 2011-12-01 | Robert Bosch Gmbh | Power tool, in particular drill driver |
| CN104084869A (en) * | 2014-06-13 | 2014-10-08 | 常州旗德电器有限公司 | Polishing head and split type polisher comprising same |
| GB2535981A (en) * | 2015-02-13 | 2016-09-07 | 3D 2 0 Ltd | Finishing system for 3D prints |
| EP3106266A1 (en) * | 2015-06-17 | 2016-12-21 | HILTI Aktiengesellschaft | Control method for an electric machine tool |
| CN106393007B (en) * | 2015-07-31 | 2019-06-14 | 南京德朔实业有限公司 | Torque exports tool and its accessories apparatus |
| JP7174520B2 (en) * | 2017-12-01 | 2022-11-17 | 株式会社マキタ | Electric tool |
| CN216442260U (en) | 2019-06-12 | 2022-05-06 | 米沃奇电动工具公司 | Electric tool |
| US11858106B2 (en) | 2019-08-08 | 2024-01-02 | Black & Decker Inc. | Power tools and power tools platform |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3873863A (en) * | 1974-02-25 | 1975-03-25 | Singer Co | Double insulated electrically powered hand tool and coupler therefor |
| DE4239559A1 (en) * | 1992-11-25 | 1994-05-26 | Festo Kg | Portable power tool, e.g. circular saw, with spindle lock for tool changing - has socket spanner with spigot that passes through bore of clamping screw and spindle and automatically locks spindle by entering locking hole on pitch circle of motor cooling fan |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1020864A (en) * | 1961-05-02 | 1966-02-23 | Wadkin Ltd | Improvements in or relating to machine tool operating heads |
| GB1136679A (en) * | 1967-10-13 | 1968-12-11 | Chicago Wheel & Mfg Co | Portable motor driven power tool |
| US3872951A (en) * | 1973-11-06 | 1975-03-25 | Black & Decker Mfg Co | Spindle locking mechanism for rotary power device |
| DE2926469C2 (en) * | 1979-06-30 | 1983-03-10 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Requirement for locking the tool spindle of hand angle grinders and similar power tools |
| DE3001907C2 (en) * | 1980-01-19 | 1982-11-18 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Device for locking the drive spindle of angle grinders and similar hand-held power tools |
| FR2598110B2 (en) * | 1985-10-24 | 1989-11-03 | Black & Decker Inc | IMPROVED MOTORIZED SCREWDRIVER |
| US5191968A (en) * | 1991-09-23 | 1993-03-09 | Ryobi Motor Products Corp. | Shaft lock arrangement for a power tool |
| DE4305965C2 (en) * | 1993-02-26 | 1997-08-21 | Kress Elektrik Gmbh & Co | Switch device for spindle locking for power tools |
| DE4336620C2 (en) * | 1993-10-27 | 1997-07-03 | Fein C & E | Power tool with a clamping device that can only be operated when the engine is switched off |
| US5496139A (en) * | 1994-09-19 | 1996-03-05 | Snap-On Incorporated | Collet lock arrangement for power tool |
| DE19528924B4 (en) * | 1995-08-05 | 2005-01-27 | Scintilla Ag | Electric hammer drill |
-
1997
- 1997-07-08 GB GB9714258A patent/GB2327054A/en not_active Withdrawn
-
1998
- 1998-06-23 EP EP98304909A patent/EP0890420A1/en not_active Withdrawn
- 1998-07-08 CN CN98103276A patent/CN1071176C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3873863A (en) * | 1974-02-25 | 1975-03-25 | Singer Co | Double insulated electrically powered hand tool and coupler therefor |
| DE4239559A1 (en) * | 1992-11-25 | 1994-05-26 | Festo Kg | Portable power tool, e.g. circular saw, with spindle lock for tool changing - has socket spanner with spigot that passes through bore of clamping screw and spindle and automatically locks spindle by entering locking hole on pitch circle of motor cooling fan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012040891A1 (en) * | 2010-09-27 | 2012-04-05 | Bosch Power Tools (China) Co., Ltd. | Power tool with interlock system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0890420A1 (en) | 1999-01-13 |
| GB2327054A (en) | 1999-01-13 |
| GB9714258D0 (en) | 1997-09-10 |
| CN1204567A (en) | 1999-01-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |