CN102248192B - Collet - Google Patents
Collet Download PDFInfo
- Publication number
- CN102248192B CN102248192B CN201010187778.XA CN201010187778A CN102248192B CN 102248192 B CN102248192 B CN 102248192B CN 201010187778 A CN201010187778 A CN 201010187778A CN 102248192 B CN102248192 B CN 102248192B
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- Prior art keywords
- main body
- chuck
- cover
- accepting groove
- projection
- 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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- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000000717 retained effect Effects 0.000 abstract 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 239000012634 fragment Substances 0.000 description 7
- 241001656951 Protheca Species 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention relates to a collet comprising a main body, a retaining member, a control sleeve and a positioning device, wherein the main body is provided with a lengthways extended axial line and an axle cavity connected with a driving axle; a first containing groove radially penetrating through the axle cavity is arranged on the main body; the retaining member is contained in the first containing groove; the control sleeve is circumferentially and fixedly sleeved outside the main body and axially moves relative to the main body, thereby driving the retaining member to move between a first position where the driving axle is retained and a second position where the driving axle is released; the positioning device is arranged between the control sleeve and the main body; in the first position, the positioning device limits the axial movement of the control sleeve relative to the main body; and in the second position, the positioning device limits the axial movement of the control sleeve relative to the main body. When the collet provided by the invention is mounted on and dismounted from the driving axle, the control sleeve is fixed in the two positions where the driving axle is retained and released relative to the main body, and a positioning prompt is provided, thus avoiding misoperation.
Description
Technical field
The present invention relates to a kind of chuck, especially a kind of have a chuck that is fast connected and dismantles with driving shaft.
Background technology
Traditional chuck, it is to be threaded or the conical surface is connected with the connected mode of tool drives axle.This syndeton, the connection of chuck and tool drives axle comparatively bothers, sometimes even must be by special instrument, especially, in the time often need to changing chuck, installation and removal chuck is very inconvenient.
U.S. Pat 6536782B2 discloses a kind of chuck, comprise main body, the front end of main body is provided with perforate to match with driving shaft, one locking member is arranged in main body, locking member can, locking radial motion between driving shaft and the two positions of release driving shaft, be provided with sheath in main body, sheath drives locking member also to make it the position in locking driving shaft or release driving shaft, one spring supporting, between main body and sheath, and is oppressed the position of sheath in locking member locking driving shaft.Although this chuck can be realized the quick change with connecting axle, due to its complex structure, when dismounting chuck, need a vertical compression sheath, relatively effort.
Chinese utility model patent 200420013883.1 discloses a kind of chuck, comprise: drill body, drill body rear portion is provided with the axocoel coordinating with driving device, also be provided with the rotating rear cover being axially positioned, and depression bar, the axocoel part of drill body is provided with the hole of passing through for depression bar and the back-moving spring coordinating with depression bar, and the rear end of depression bar is resisted against on the inwall of rear cover, and rear cover inwall is provided with the working position of corresponding depression bar and the groove of raw bits.By rotating rear cuff dynamic pressure bar advance and retreat, realize the handling of drill chuck and driving device connecting axle.Although this chuck can be realized the quick change with connecting axle, but, because in the time of extracting tool head be, by the protheca of rotary chuck, discharge or clamp claw to realize, thereby easily rear cover is carried out to maloperation so in rotary chuck protheca, chuck is disassembled from connecting axle, carry out unnecessary trouble to extracting tool headband.
For this reason, prior art is necessary further improvement in fact.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide the chuck that can be connected and dismantle with driving shaft fast of a kind of rapid operation, reliable in structure.
The technical solution adopted for the present invention to solve the technical problems is: a kind of chuck, comprising: main body, and described main body has the axis of lengthwise extension and connects the axocoel of driving shaft, and described main body is provided with the first accepting groove that radially runs through axocoel; Locking member, is contained in described the first accepting groove; Control cover, circumferentially the fixing main body that is sheathed on is outside and with respect to main body axially-movable, thereby drive locking member in the primary importance of lock drive axle and discharge between the second place of driving shaft, moves; Described chuck also comprises being arranged on controls the positioner overlapping between main body, and in described primary importance, the axially-movable of cover with respect to main body controlled in described positioner restriction; In the described second place, the axially-movable of cover with respect to main body controlled in described positioner restriction.
Chuck of the present invention is when mounting and dismounting with driving shaft, controlling cover is locked and two positions discharging are fixed at driving shaft with respect to main body, and there is positioning indicating, operator can very clearly know chuck in the position of locking or the release of driving shaft, can not produce maloperation.
Preferably, described positioner comprise be arranged on control cover inwall and main body the two one of on keeper, and being arranged on the locating slot of controlling in the two another one of cover inwall and main body, described keeper may be stuck in described locating slot and acts radially on controls cover.
Preferably, described keeper is elastic component.
Preferably, described keeper comprise the rigidity part that may be stuck in described locating slot and with rigidity part radially against spring.
Preferably, described locating slot is arranged on to be controlled on cover inwall, and described main body is provided with the second accepting groove, and described keeper is arranged in the second accepting groove.
Preferably, described the second accepting groove and described the first accepting groove are arranged on same axial location with respect to main body.
Preferably, the inwall of described control cover is provided with stopper slot, and described main body is provided with radial projection, and described radial projection is stuck in also can be along main body axially-movable in stopper slot.
Preferably, described the second accepting groove is arranged in described radial projection, is radially outwards provided with the first projection in described main body, and described the first accepting groove is arranged on the first projection.
Preferably, described radial projection and described the first projection are arranged on same axial location with respect to main body.
Preferably, corresponding described the first projection of the inwall of described control cover is provided with the first groove, and described the first projection is stuck in also can be along main body axially-movable in described the first groove.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and the preferred embodiments of the present invention, be described in further detail.
Fig. 1 is the cutaway view of the first embodiment of chuck of the present invention, now the primary importance of locking member in lock drive axle.
Fig. 2 is that the first embodiment of chuck of the present invention is along the cutaway view of A-A line in Fig. 1.
Fig. 3 be the first embodiment of chuck of the present invention along the cutaway view of B-B line in Fig. 1, now positioner is in primary importance.
Fig. 4 is that the first embodiment of chuck of the present invention is along the cutaway view of C-C line in Fig. 3.
Fig. 5 is the another kind of embodiment schematic diagram of chuck of the present invention.
Fig. 6 is that the another kind of embodiment of chuck of the present invention is along the cutaway view of D-D line in Fig. 5.
Fig. 7 be in the first embodiment of chuck of the present invention locking member in discharging the schematic diagram of the second place of driving shaft.
Fig. 8 is the schematic diagram of positioner in the second place in the first embodiment of the present invention.
Wherein, related elements reference numeral is as follows:
10. driving shaft 20. main body 30. locking members
40. control cover 50. positioner 60. clamping devices
11. shaft shoulder 12. cannelure 13. hexagonal holes
21. axocoel 23. first projection 24. radial projection
25. 6 side's axle 26. collar 31. support columns
32. steel ball 41. Part I 42. Part II
43. first groove 44. stopper slot 45. locating slots
52. rigidity part 53. spring 55. shell fragments
61. protheca 62. jaw 63. inclined holes
65. screw 210. rear end 220. front ends
231. first accepting groove 241. second accepting grooves
The specific embodiment
See figures.1.and.2, a kind of chuck that can be connected and dismantle with driving shaft 10 fast reliably that operates.One end of chuck is used for clamping drilling bit, the first-class working head of screwdriver, and the other end of chuck can coordinate with the driving shaft 10 of the electric tool such as hammer, brill, screwdriver, impact wrench, thereby driving shaft 10 transmits torque to chuck, drives working head rotation.In a preferred embodiment of the invention, chuck comprises main body 20, be arranged on the control cover 40 in main body 20, be arranged on the locking member 30 that can lock driving shaft 10 in main body 20, be arranged on the positioner 50 of controlling between cover 40 and main body 20, and be arranged on the clamping device 60 for clamping device head in main body 20 etc.
In main body 20, be arranged with control and overlap 40,40 circumferential fixing are overlapped in control also can be along the axially-movable of main body 20, and 40 inwall conflict is overlapped in locking member 30 and control.One end fixed cover being connected with driving shaft 10 in main body 20 is provided with collar 26, for limiting the axially-movable of controlling cover 40, to prevent that controlling cover 40 skids off main body 20.
In main body 20, be radially outwards provided with the first projection 23, accordingly, control on the inwall that overlaps 40 and be axially arranged with first groove 43 corresponding with the first projection 23 along main body 20, the first projection 23 is stuck in also can be in the interior axially-movable along main body 20 of the first groove 43 in the first groove 43, and the first groove 43 has limited and controlled cover 40 rotations with respect to main body 20.The first projection 23 is provided with in the first accepting groove 231, the first accepting grooves 231 that run through with axocoel 21 locking member 30 is installed, and locking member 30 can partly extend in the axocoel 21 of main body 20.The first accepting groove 231 also can be set directly in main body, but the first projection 23 is set can make the structure of chuck compacter.Wherein, locking member 30 can arrange one, also can arrange multiple.As arrange multiple, can be along main body 20 circumferencial direction equal angles settings, it is identical that corresponding the first projection 23 and the first accepting groove 231 also arrange number with locking member 30, and stress balance in the time of can making like this chuck and driving shaft 10 lock is set along main body 20 circumferencial direction equal angles.Certainly, in conjunction with cost and stress balance two aspects, consider, the preferred locking member 30 of the present invention arranges two, with respect to the axis X of main body 20, is symmetrical arranged.
Locking member 30 has spherical shape along main body 20 two ends radially, locking member 30 comprise one at least one end there are support column 31 and a steel ball 32 of spherical shape or two steel balls 32; Support column 31 and steel ball 32 also can be wholely set, and steel ball 32 or two ends have the steel column of spherical shape.The preferred locking member 30 of the present invention comprises that an one end has support column 31 and a steel ball 32 of spherical shape, and the sphere end of support column 31 and the inwall of main body 20 are conflicted.The periphery of driving shaft 10 is provided with cannelure 12, when the shaft shoulder 11 of driving shaft 10 is stuck in the rear end 210 of main body 20, and cannelure 12 just with the first accepting groove 231 correspondences of driving shaft 10, steel ball 32 is stuck in cannelure 12 with locking driving shaft 10.Because locking member 30 is arranged to two parts, make its less rigid, therefore make the operability of chuck better.
The inwall of controlling cover 40 has Part I 41 and the less Part II 42 of internal diameter that internal diameter is larger, control cover 40 axially-movables to make locking member 30 in the primary importance of lock drive axle 10 and to discharge between the second place of driving shaft 10 along main body 20 radial motions, when locking member 30 is conflicted with the Part I 41 of controlling cover 40, be positioned at the second place that discharges driving shaft 10; Locking member 30 is positioned at the primary importance of lock drive axle 10 while conflicting with the Part II 42 of controlling cover 40.Between Part I 41 and Part II 42, by chamfered transition, connect, make like this axially-movable of control cover 40 more steady, good operability.
With reference to Fig. 3 and Fig. 4, chuck also includes positioner 50, and positioner 50 is arranged on to control between cover 40 and main body 20 and along main body 20 and acts radially on and control cover 40.In main body 20, be radially outwards provided with radial projection 24, accordingly, control on the inwall that overlaps 40 and be axially arranged with the stopper slot corresponding with radial projection 24 44 along main body 20, radial projection 24 is stuck in also can be in the interior axially-movable along main body 20 of stopper slot 44 in stopper slot 44, and stopper slot 44 has limited and controlled cover 40 rotations with respect to main body 20.In radial projection 24, along main body 20, being radially provided with the second accepting groove 241, the second accepting grooves 241 is blind hole, and certainly, the second accepting groove 241 also can be set directly in main body, but radial projection 24 is set can make the structure of chuck compacter.Positioner 50 comprises being arranged on to be controlled at least one locating slot 45 on 40 inwalls of cover, is housed in the spring 53 in the second accepting groove 241 and is subject to spring 53 bias effects to may be stuck in the rigidity part 52 in locating slot 45.Positioner 50 restriction control cover 40 at locking member 30 in the primary importance of lock drive axle 10 or discharge the second place of driving shaft 10 with respect to the axially-movable of main body 20.The preferred locating slot 45 of the present invention is two, respectively the primary importance of locking and the second place of release of corresponding locking member 30.When moving axially, control cover 40 time, rigidity part 52 sticks into another one locating slot 45 under the effect of spring 53 from a locating slot 45 is thrown off, now can send the sound that rigidity part engages with locating slot 45, can prompting operation person's chuck in latched position or the off-position of driving shaft 10.The rigidity part 52 here can be steel ball, steel column, and all can realize metalwork or the nonmetal parts of positioning function steel caps etc.Here also the first accepting groove 231 can be arranged on the inwall of controlling cover 40, corresponding spring 53 and rigidity part 52 are arranged in the second accepting groove 241, locating slot 45 is arranged in radial projection 24, so also can realize and control cover 40 functions of locating with respect to main body 20.Based on the consideration of space and structural strength, the present invention is preferably arranged on locating slot 45 structure of controlling on cover 40 inwalls.
The first projection 23 in main body 20 and radial projection 24 can be arranged on respect to the same axial location of main body 20, also can be different axial locations, preferred the first projection 23 of the present invention and radial projection 24 are all to arrange two, the first projection 23 and the radial projection 24 90 degree settings of being respectively separated by so, are cross setting.Accordingly, the first accepting groove 231 and the second accepting groove 241 also can be arranged on same axial location or different axial locations with respect to main body, being arranged on same axial location can make structure compacter, being arranged on different axial locations can make structural strength higher, here can select according to concrete needs, concrete set-up mode those skilled in the art can expect easily, repeats no more here.
The another kind of embodiment of chuck of the present invention shown in Fig. 5 and Fig. 6.Positioner 50 comprises being arranged on to be controlled at least one locating slot 45 on 40 inwalls of cover, is stuck in the shell fragment 55 in the second accepting groove 241, and shell fragment 55 acts radially on controls cover 40.Control cover 40 axially-movable compressing shell fragment 55 strains, thereby act radially on and control cover 40 along main body 20, at the deformation place of shell fragment 55, extending into its elastic force in locating slot 45 is released, thereby shell fragment 55 is stuck in locating slot 45, controls like this cover 40 and be limited with respect to the axially-movable of main body 20.Here also the second accepting groove 241 can be arranged on the inwall of controlling cover 40, corresponding shell fragment 55 is stuck in the second accepting groove 241, and locating slot 45 is arranged in radial projection 24, so also can realize and control cover 40 functions of locating with respect to main body 20.Based on the consideration of space and structural strength, the present invention is preferably arranged on locating slot 45 structure of controlling on cover 40 inwalls.
Chuck and the quick connection of driving shaft 10 and the process of dismounting will be described in detail below.
With reference to Fig. 7 and Fig. 8, when chuck does not connect output shaft, the keeper of positioner 50 can be stuck in any one locating slot 45, and controlling cover 40 can be in compressing any one position of locking member 30 and release locking member 30.When needs are connected on output shaft by chuck, determine and control cover 40 in discharging the position of locking member 30, locking member 30 is conflicted with the Part I 41 of controlling cover 40 inwalls, and keeper is stuck in the locating slot 45 of contiguous main body 20 rear ends 210.During the connection of chuck and driving shaft 10, driving shaft 10 is extend in the axocoel 21 of clamper main body 20.The shaft shoulder 11 of driving shaft 10 is stuck in the rear end 210 of main body 20, the cannelure 12 of driving shaft 10 is corresponding with the first accepting groove 231 positions, be cannelure 12 and the first accepting groove 231 with respect to main body 20 in same axial location, now along arrow F direction operation control cover 40, make keeper cross the locating slot 45 of contiguous main body 20 rear ends 210, and move on, until keeper snaps into the sound that sends engaging in the locating slot 45 of contiguous main body 20 front ends 220, and control cover 40, also along main body 20, axially move to the Part II 42 of its inwall and the position that locking member 30 is conflicted, thereby control cover 40 compression locking member 30 locking members 30 are stuck in the position of the cannelure 12 internal lockings drivings of driving shaft 10, namely Fig. 1 is to the position shown in Fig. 4.
Continuation is referring to figs. 1 through Fig. 4, when needs by chuck when driving shaft 10 is dismantled, along arrow M direction pressure-controlled cover 40, make keeper cross the locating slot 45 of contiguous main body 20 front ends 220, and continue pressure-controlled and overlap 40, until keeper snaps into the sound that sends engaging in the locating slot 45 of contiguous main body 20 rear ends 210, and control cover 40, also along main body 20, axially move to the Part I 41 of its inwall and the position that locking member 30 is conflicted, thereby control cover 40 and discharge the cannelure 12 interior disengaging of locking member 30 locking members 30 from driving shaft 10, the namely position shown in Fig. 7 and Fig. 8, now can easily chuck be taken off from driving shaft 10.
What the present invention relates to is the structure of chuck and driving shaft 10 mating parts, and the clamping device 60 of chuck can adopt any existing structure.Such as: as shown in Figure 1, main body 20 front ends 220 of chuck are along the circumferential equidistant inclined hole that is provided with three inclinations 63, a jaw 62 is slidably installed in each inclined hole 63, main body 20 is provided with the screw 65 being threaded with jaw 62, main body 20 front ends 220 are also provided with the protheca 61 that drives screw 65 to rotate, protheca 61 is with respect to main body 20 axial location, and rotation protheca 61 drives screw 65, jaw 62 is unclamped or clamping tool head.
Chuck provided by the present invention, when mounting and dismounting with driving shaft 10, has positioning indicating, operator can very clearly know chuck in the position of locking or the release of driving shaft 10, can not produce maloperation.
Claims (10)
1. a chuck, comprising:
Main body (20), described main body (20) has the axis of lengthwise extension and connects the axocoel (21) of driving shaft (10), and described main body (20) is provided with the first accepting groove (231) that radially runs through axocoel (21);
Locking member (30), is contained in described the first accepting groove (231);
Control cover (40), circumferentially the fixing main body (20) that is sheathed on is outside and with respect to main body (20) axially-movable, thereby drives locking member (30) to move between the primary importance of lock drive axle (10) and the second place of release driving shaft (10);
It is characterized in that: described chuck also comprises being arranged on controls the positioner (50) overlapping between (40) and main body (20), in described primary importance, the axially-movable of cover (40) with respect to main body (20) controlled in described positioner (50) restriction; In the described second place, the axially-movable of cover (40) with respect to main body (20) controlled in described positioner (50) restriction.
2. chuck as claimed in claim 1, it is characterized in that: described positioner (50) comprise be arranged on control cover (40) inwall and main body (20) the two one of on keeper, and being arranged on the locating slot (45) of controlling in the two another one of cover (40) inwall and main body (20), described keeper may be stuck in described locating slot (45) and acts radially on controls cover (40).
3. chuck as claimed in claim 2, is characterized in that: described keeper is elastic component (55).
4. chuck as claimed in claim 2, is characterized in that: described keeper comprise the rigidity part (32) that may be stuck in described locating slot (45) and with rigidity part (32) radially against spring (53).
5. the chuck as described in claim 3 or 4, it is characterized in that: described locating slot (45) is arranged on to be controlled on cover (40) inwall, described main body (20) is provided with the second accepting groove (241), and described keeper is arranged in the second accepting groove (241).
6. chuck as claimed in claim 5, is characterized in that: described the second accepting groove (241) is arranged on same axial location with described the first accepting groove (231) with respect to main body (20).
7. chuck as claimed in claim 5, it is characterized in that: the inwall of described control cover (40) is provided with stopper slot (44), described main body (20) is provided with radial projection (24), and described radial projection (24) is stuck in also can be along main body (20) axially-movable in stopper slot (44).
8. chuck as claimed in claim 7, it is characterized in that: described the second accepting groove (241) is arranged in described radial projection (24), in described main body (20), be radially outwards provided with the first projection (23), described the first accepting groove (231) is arranged on the first projection (23).
9. chuck as claimed in claim 8, is characterized in that: described radial projection (24) is arranged on same axial location with described the first projection (23) with respect to main body (20).
10. chuck as claimed in claim 8, it is characterized in that: corresponding described first projection of inwall (23) of described control cover (40) is provided with the first groove (43), described the first projection (23) is stuck in also can be along main body (20) axially-movable in described the first groove (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010187778.XA CN102248192B (en) | 2010-05-21 | 2010-05-21 | Collet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010187778.XA CN102248192B (en) | 2010-05-21 | 2010-05-21 | Collet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102248192A CN102248192A (en) | 2011-11-23 |
| CN102248192B true CN102248192B (en) | 2014-04-16 |
Family
ID=44975964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010187778.XA Expired - Fee Related CN102248192B (en) | 2010-05-21 | 2010-05-21 | Collet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102248192B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345100B (en) * | 2015-12-18 | 2019-09-24 | 山东威达机械股份有限公司 | A kind of closefisted drill chuck with lock of releasable deformation force |
| CN111014216A (en) * | 2019-12-13 | 2020-04-17 | 湖北源诚工业安全技术有限公司 | Claw linkage adjusting mechanism applied to portable bolt maintenance cleaning machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2930929Y (en) * | 2006-07-28 | 2007-08-08 | 台州市黄岩丰收农机修造厂 | Tightening fast-assembling drill chuck |
| CN201079948Y (en) * | 2007-09-27 | 2008-07-02 | 梁宗杰 | Electric hammer round hole double-bead open spring type self-locking device |
| CN101422823A (en) * | 2007-11-01 | 2009-05-06 | 苏州宝时得电动工具有限公司 | Power tool |
| CN201264105Y (en) * | 2007-12-26 | 2009-07-01 | 陈肇和 | Drill chuck with handle of gun drill |
| GB2460959A (en) * | 2008-06-18 | 2009-12-23 | Jacobs Chuck Mfg Co | Chuck having Toothed Locking Rings |
| CN201702401U (en) * | 2010-05-21 | 2011-01-12 | 苏州宝时得电动工具有限公司 | Grip |
-
2010
- 2010-05-21 CN CN201010187778.XA patent/CN102248192B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2930929Y (en) * | 2006-07-28 | 2007-08-08 | 台州市黄岩丰收农机修造厂 | Tightening fast-assembling drill chuck |
| CN201079948Y (en) * | 2007-09-27 | 2008-07-02 | 梁宗杰 | Electric hammer round hole double-bead open spring type self-locking device |
| CN101422823A (en) * | 2007-11-01 | 2009-05-06 | 苏州宝时得电动工具有限公司 | Power tool |
| CN201264105Y (en) * | 2007-12-26 | 2009-07-01 | 陈肇和 | Drill chuck with handle of gun drill |
| GB2460959A (en) * | 2008-06-18 | 2009-12-23 | Jacobs Chuck Mfg Co | Chuck having Toothed Locking Rings |
| CN201702401U (en) * | 2010-05-21 | 2011-01-12 | 苏州宝时得电动工具有限公司 | Grip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102248192A (en) | 2011-11-23 |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 |