WO2008122159A1 - A self-locking hammer-drill chuck - Google Patents

A self-locking hammer-drill chuck Download PDF

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Publication number
WO2008122159A1
WO2008122159A1 PCT/CN2007/001975 CN2007001975W WO2008122159A1 WO 2008122159 A1 WO2008122159 A1 WO 2008122159A1 CN 2007001975 W CN2007001975 W CN 2007001975W WO 2008122159 A1 WO2008122159 A1 WO 2008122159A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
drill chuck
locking
drill
teeth
Prior art date
Application number
PCT/CN2007/001975
Other languages
French (fr)
Chinese (zh)
Inventor
Wenhua Zhou
Qiang Zhao
Original Assignee
Zhejiang Sanou Machinery Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Sanou Machinery Co., Ltd filed Critical Zhejiang Sanou Machinery Co., Ltd
Publication of WO2008122159A1 publication Critical patent/WO2008122159A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/123—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis with locking arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/38—Keyless chucks for hand tools

Definitions

  • the present invention relates to a drill chuck, and more particularly to a drill chuck mounted on a machining apparatus and a power tool such as a drill press or an electric drill. Background technique
  • the hand drill chuck is provided with a drill body, a jaw, a nut, a rotatable rotary sleeve and a rear sleeve, and the rotary sleeve is axially positioned, and the three jaws are respectively disposed on the drill body.
  • the nut and the clamping jaw are threaded, and the rotation of the nut is driven by the rotating sleeve to drive the clamping jaws into and out of the inclined hole to clamp or release the drilling tool.
  • the disadvantage of these drilling chucks is that : Under the impact load, the bit clamped by the jaws is easy to loosen or even fall off, and it is difficult to maintain the continuity of the processing. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a novel self-locking hand-tight drill chuck which is not easy to loosen and slip under the impact load.
  • the present invention adopts the following technical solutions: It comprises a drill body, a clamping jaw, an axially positioned rotating sleeve, a nut, a rear sleeve behind the rotating sleeve, the jaws are threadedly connected with the nut, and the drill chuck is provided with a rear a sleeve body surrounding the drill body with a tooth surface, the sleeve body with the toothed end of the rear end surface being coupled with the rotary sleeve for rotation; the drill chuck is provided with a drill at the rear of the sleeve body with the tooth on the rear end surface a sliding sleeve rotating together, the front end surface of the sliding sleeve is provided with teeth cooperating with the teeth; the rear sleeve is rotatable in the circum
  • the invention can realize the self-locking function by the cooperation of the sleeve body with the teeth on the rear end surface and the sliding sleeve, so that the bit clamped by the jaws is not easy to loosen and slip off even under the impact load. . DRAWINGS
  • Figure 1 is a half cross-sectional view showing an embodiment of the present invention.
  • Figure 2 is an exploded view of the embodiment of Figure 1.
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 1.
  • Figure 4 is a perspective view of the sliding sleeve.
  • Figure 5 is a perspective view of a sleeve body with teeth on the rear end face.
  • Figure 6 is a perspective view of the back cover.
  • Figure 7 is a perspective view of the back cover. detailed description
  • the invention comprises a drill body 1, a clamping jaw 4, an axially positioned rotating sleeve 2, a nut 3, and a rear sleeve 7 behind the rotating sleeve.
  • the clamping jaw is screwed to the nut, and the drilling chuck is provided with a tooth on the rear end face.
  • the drill chuck is provided with the drill body at the rear of the sleeve body with the teeth on the rear end surface a rotating sliding sleeve 6, the front end surface of the sliding sleeve is provided with teeth 61 cooperating with the teeth 51;
  • the rear sleeve is rotatable in the circumferential direction, and the sleeve is provided with a sleeve for controlling the sliding sleeve and the rear end surface with teeth
  • the matching control member 72 is provided with a groove 63 corresponding to the locking engagement state of the control member in the rotation direction of the control member and a groove 62 corresponding to the non-locking engagement state.
  • the rotating sleeve and the nut are connected by a keyway fit or an interference fit and the nut is rotated.
  • the sleeve body with the teeth on the rear end surface is connected with the inner wall of the rotary sleeve.
  • the sliding sleeve is connected to the drill body through the key 97, rotates together with the drill body and can slide up and down the outer circumference of the body.
  • Reference numeral 64 is a keyway on the sliding sleeve.
  • the drill chuck is provided with a spring 91 that presses the sliding sleeve in the direction of the sleeve with the teeth.
  • the sliding sleeve always has a tendency to slide forward.
  • the drill chuck is provided with a rear cover 8 that is incapable of moving relative to the drill body, and the spring 91 is between the rear cover 8 and the sliding sleeve.
  • the groove 63 and the groove 62 provided in the sliding sleeve are disposed on the front end surface of the sliding sleeve.
  • the drill chuck is provided with a spring 93 for pressing the rear sleeve backward, so that the rear sleeve has a backward moving tendency, which facilitates the control of the sliding sleeve by the control member, and the self-locking operation is more convenient.
  • the inner wall of the rear sleeve is provided with a boss 73, and the rear sleeve is rearward
  • the extruded spring is disposed between the inner wall of the rear sleeve and the rear end surface of the sleeve with the teeth, and the spring 93 is provided with a coil spring.
  • the rear cover 8 is provided with a limiting slot 81 for rotating the rear sleeve, and the rear sleeve is provided with a key 71 that cooperates with the limiting slot.
  • the direction of rotation of the clamping workpiece is a positive direction
  • the groove corresponding to the non-locking engagement state is in the opposite direction of the groove corresponding to the locking engagement state. In this way, when the drill chuck is operated, it is convenient to hold the rear sleeve to operate the rotary sleeve, which is more convenient to use.
  • the rotary sleeve When clamping the tool, when viewed from the front end of the drill chuck, the rotary sleeve rotates clockwise, and the nut is rotated to cause the jaw to clamp the tool; the rear sleeve key 71 is closely attached to a side wall of the limiting slot 81, which is counterclockwise The turning tendency, at this time, the control member 72 is in the recess 62, and the teeth 51 and the teeth 61 are in a disengaged state.
  • the rear sleeve When the tool is clamped, the rear sleeve is rotated clockwise, and the control member 72 is turned into the recess 63, and the teeth 51 are engaged with the teeth 61 to achieve self-locking locking.
  • the nut In the self-locking state, even if the drill chuck is subjected to an impact load, the nut does not loose relative to the drill body due to the engagement of the tooth 51 with the tooth 61, and the jaws maintain the clamped state of the tool.
  • the back sleeve is rotated counterclockwise to disengage the tooth 51 from the tooth 61, and the rotating sleeve can be rotated to release the jaw.

Abstract

A self-locking hammer-drill chuck includes a chuck body (1), a plurality of jaws (4), a rotating sleeve (2) orientated axial, and a plurality of nuts (3), and a back sleeve (7) at the back of the rotating sleeve (2). The above chuck has a sleeve (5) around the chuck body and there are teeth (51) at the sleeve's backend. The sleeve (5) connects with the rotating sleeve (2) and rotates together. And on the back of the sleeve (5), there is a sliding sleeve (6) that rotates with the chuck body (1) together. In the back sleeve (7), there is a controller (72) which controls the cooperation of the sliding sleeve (6) and the sleeve (5). And at the rotation direction of the controller (72), the above sliding sleeve (6) has grooves (63) engaging with the controller (72) which corresponding to locking state and has grooves (62) engaging with the controller (72) which corresponding to unlocking state. The above chuck can realize self-locking, and it will not loosen under impact load.

Description

一种自锁式手紧钻夹头 技术领域  Self-locking hand tight drilling chuck
本发明涉及一种钻夹头， 尤其涉及一种安装在机械加工设备及电动工具例 如钻床、 电钻上的钻夹头。 背景技术  The present invention relates to a drill chuck, and more particularly to a drill chuck mounted on a machining apparatus and a power tool such as a drill press or an electric drill. Background technique
'现有技术中，手紧钻夹头中设有钻体、夹爪、螺母、可旋转的旋转套、后套， 旋转套轴向被定位，三只夹爪分别设置在均布于钻体上的三个斜孔内，螺母与夹 爪之间釆用螺紋连接，通过操作旋转套带动螺母旋转从而带动夹爪在斜孔内进出 以夹紧或松脱钻具， 这些钻夹头的缺点在于： 受冲击载荷作用下， 夹爪夹持的钻 头容易松动打滑甚至脱落， 很难保持加工的连续性。 发明内容  In the prior art, the hand drill chuck is provided with a drill body, a jaw, a nut, a rotatable rotary sleeve and a rear sleeve, and the rotary sleeve is axially positioned, and the three jaws are respectively disposed on the drill body. In the three inclined holes, the nut and the clamping jaw are threaded, and the rotation of the nut is driven by the rotating sleeve to drive the clamping jaws into and out of the inclined hole to clamp or release the drilling tool. The disadvantage of these drilling chucks is that : Under the impact load, the bit clamped by the jaws is easy to loosen or even fall off, and it is difficult to maintain the continuity of the processing. Summary of the invention
本发明所要解决的技术问题是提供一种在冲击载荷作用下不易松动打滑的 新颖自锁式手紧钻夹头。 为此， 本发明采用以下技术方案： 它包括钻体、 夹爪、 轴向定位的旋转套、螺母、处于旋转套后方的后套， 夹爪与螺母螺纹连接， 所述 钻夹头设有后端面带有齿的围绕钻体的套体，所述后端面带有齿的套体与旋转套 连接而一起旋转；所述钻夹头在后端面带有齿的套体的后方设有与钻体一起旋转 的滑动套， 所述滑动套的前端面设有与前述齿配合的齿； 所述后套周向可转动， 后套内设有控制滑动套与后端面带有齿的套体配合的控制件，所述滑动套沿控制 件的旋转方向设有与控制件配合的对应锁紧配合状态的凹槽和对应非锁紧配合 状态的凹槽。由于釆用本发明的技术方案，本发明能通过后端面带有齿的套体与 滑动套的配合， 实现自锁功能， 使得即使受到冲击载荷作用下， 夹爪夹持的钻头 不易松动打滑脱落。 附图说明 The technical problem to be solved by the present invention is to provide a novel self-locking hand-tight drill chuck which is not easy to loosen and slip under the impact load. To this end, the present invention adopts the following technical solutions: It comprises a drill body, a clamping jaw, an axially positioned rotating sleeve, a nut, a rear sleeve behind the rotating sleeve, the jaws are threadedly connected with the nut, and the drill chuck is provided with a rear a sleeve body surrounding the drill body with a tooth surface, the sleeve body with the toothed end of the rear end surface being coupled with the rotary sleeve for rotation; the drill chuck is provided with a drill at the rear of the sleeve body with the tooth on the rear end surface a sliding sleeve rotating together, the front end surface of the sliding sleeve is provided with teeth cooperating with the teeth; the rear sleeve is rotatable in the circumferential direction, and the sleeve is matched with a sleeve body for controlling the sliding sleeve and the rear end surface with teeth The sliding sleeve is provided with a groove corresponding to the locking engagement state of the control member along the rotation direction of the control member and a groove corresponding to the non-locking engagement state. Since the technical solution of the invention is used, the invention can realize the self-locking function by the cooperation of the sleeve body with the teeth on the rear end surface and the sliding sleeve, so that the bit clamped by the jaws is not easy to loosen and slip off even under the impact load. . DRAWINGS
图 1为本发明所提供的一种实施例的半剖示意图。  BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a half cross-sectional view showing an embodiment of the present invention.
图 2为图 1所示实施例的爆炸图。  Figure 2 is an exploded view of the embodiment of Figure 1.
图 3为图 1中的 A-A剖视图。  Figure 3 is a cross-sectional view taken along line A-A of Figure 1.
图 4为滑动套的立体图。  Figure 4 is a perspective view of the sliding sleeve.
图 5为后端面带有齿的套体的立体图。  Figure 5 is a perspective view of a sleeve body with teeth on the rear end face.
图 6为后盖的立体图。  Figure 6 is a perspective view of the back cover.
图 7为后套的立体图。 具体实施方式  Figure 7 is a perspective view of the back cover. detailed description
参照附图。 本发明包括钻体 1、 夹爪 4、 轴向定位的旋转套 2、 螺母 3、 处 于旋转套后方的后套 7,夹爪与螺母螺紋连接，所述钻夹头设有后端面带有齿 51 的围绕钻体的套体 5， 所述后端面带有齿的套体与旋转套连接而一起旋转； 所述 钻夹头在后端面带有齿的套体的后方设有与钻体一起旋转的滑动套 6，所述滑动 套的前端面设有与前述齿 51配合的齿 61 ; 所述后套周向可转动， 后套内设有控 制滑动套与后端面带有齿的套体配合的控制件 72， 所述滑动套沿控制件的旋转 方向设有与控制件配合的对应锁紧配合状态的凹槽 63和对应非锁紧配合状态的 凹槽 62。  Refer to the attached drawings. The invention comprises a drill body 1, a clamping jaw 4, an axially positioned rotating sleeve 2, a nut 3, and a rear sleeve 7 behind the rotating sleeve. The clamping jaw is screwed to the nut, and the drilling chuck is provided with a tooth on the rear end face. a sleeve body 5 surrounding the drill body, wherein the sleeve body with the teeth on the rear end surface is coupled with the rotary sleeve for rotation; the drill chuck is provided with the drill body at the rear of the sleeve body with the teeth on the rear end surface a rotating sliding sleeve 6, the front end surface of the sliding sleeve is provided with teeth 61 cooperating with the teeth 51; the rear sleeve is rotatable in the circumferential direction, and the sleeve is provided with a sleeve for controlling the sliding sleeve and the rear end surface with teeth The matching control member 72 is provided with a groove 63 corresponding to the locking engagement state of the control member in the rotation direction of the control member and a groove 62 corresponding to the non-locking engagement state.
旋转套与螺母通过键槽配合或过盈配合而连接并带动螺母旋转。 所述后端 面带有齿的套体与旋转套内壁过盈配合连接。 滑动套通过键 97与钻体连接， 与 钻体一起旋转并可钻体外周上下滑动。 附图标号 64为滑动套上的键槽。  The rotating sleeve and the nut are connected by a keyway fit or an interference fit and the nut is rotated. The sleeve body with the teeth on the rear end surface is connected with the inner wall of the rotary sleeve. The sliding sleeve is connected to the drill body through the key 97, rotates together with the drill body and can slide up and down the outer circumference of the body. Reference numeral 64 is a keyway on the sliding sleeve.
所述钻夹头设有将滑动套向带有齿的套体方向挤压的弹簧 91。 使滑动套始 终有向前滑动的趋势。所述钻夹头设有不能相对于钻体活动的后盖 8, 所述弹簧 91处于后盖 8和滑动套之间。  The drill chuck is provided with a spring 91 that presses the sliding sleeve in the direction of the sleeve with the teeth. The sliding sleeve always has a tendency to slide forward. The drill chuck is provided with a rear cover 8 that is incapable of moving relative to the drill body, and the spring 91 is between the rear cover 8 and the sliding sleeve.
所述滑动套所设的凹槽 63和凹槽 62设于滑动套的前端面。 所述钻夹头设 有将后套向后挤压的弹簧 93， 使后套有向后的移动趋势， 便于控制件对滑动套 的控制， 使自锁操作更为方便。 所述后套的内壁设有凸台 73， 所述将后套向后 挤压的弹簧设于后套内壁凸起和带有齿的套体的后端面之间， 所述弹簧 93釆用 碟簧圈。 The groove 63 and the groove 62 provided in the sliding sleeve are disposed on the front end surface of the sliding sleeve. The drill chuck is provided with a spring 93 for pressing the rear sleeve backward, so that the rear sleeve has a backward moving tendency, which facilitates the control of the sliding sleeve by the control member, and the self-locking operation is more convenient. The inner wall of the rear sleeve is provided with a boss 73, and the rear sleeve is rearward The extruded spring is disposed between the inner wall of the rear sleeve and the rear end surface of the sleeve with the teeth, and the spring 93 is provided with a coil spring.
所述后盖 8设有后套旋转的限位槽 81,所述后套设有与限位槽配合的键 71。 参照图 2和 4， 以夹紧工件的旋转方向为正方向， 所述对应非锁紧配合状态 的凹槽处于对应锁紧配合状态的凹槽的反方向上。这样， 在操作钻夹头时， 便于 握持后套操作旋转套， 使用更为方便。  The rear cover 8 is provided with a limiting slot 81 for rotating the rear sleeve, and the rear sleeve is provided with a key 71 that cooperates with the limiting slot. Referring to Figures 2 and 4, the direction of rotation of the clamping workpiece is a positive direction, and the groove corresponding to the non-locking engagement state is in the opposite direction of the groove corresponding to the locking engagement state. In this way, when the drill chuck is operated, it is convenient to hold the rear sleeve to operate the rotary sleeve, which is more convenient to use.
夹紧工具时， 从钻夹头的前端看， 旋转套是顺时针转动， 并带动螺母旋转使 夹爪夹紧工具；后套键 71与限位槽 81的一侧壁紧贴，是逆时针转动趋势，这时， 控制件 72处于凹槽 62中， 齿 51与齿 61处于脱开配合状态。 当夹紧工具后， 顺 时针转动后套， 控制件 72转入凹槽 63中， 齿 51与齿 61处于啮合配合状态， 从 而实现自锁锁紧。 在自锁状态时， 即使钻夹头受到冲击载荷， 因齿 51 与齿 61 的配合，螺母不会相对钻体松动，夹爪保持对工具的夹紧状态。当要取出工具时， 先逆时针转动后套， 使齿 51与齿 61脱开， 就可转动旋转套松开夹爪。  When clamping the tool, when viewed from the front end of the drill chuck, the rotary sleeve rotates clockwise, and the nut is rotated to cause the jaw to clamp the tool; the rear sleeve key 71 is closely attached to a side wall of the limiting slot 81, which is counterclockwise The turning tendency, at this time, the control member 72 is in the recess 62, and the teeth 51 and the teeth 61 are in a disengaged state. When the tool is clamped, the rear sleeve is rotated clockwise, and the control member 72 is turned into the recess 63, and the teeth 51 are engaged with the teeth 61 to achieve self-locking locking. In the self-locking state, even if the drill chuck is subjected to an impact load, the nut does not loose relative to the drill body due to the engagement of the tooth 51 with the tooth 61, and the jaws maintain the clamped state of the tool. When the tool is to be removed, the back sleeve is rotated counterclockwise to disengage the tooth 51 from the tooth 61, and the rotating sleeve can be rotated to release the jaw.

Claims

权利要求书 Claim
1、 一种新颖自锁式手紧钻夹头， 包括钻体、 夹爪、 轴向定位的旋转套、 螺 母、处于旋转套后方的后套， 夹爪与螺母螺紋连接， 其特征在于所述钻夹头设有 后端面带有齿的围绕钻体的套体，所述后端面带有齿的套体与旋转套连接而一起 旋转； 所述钻夹头在后端面带有齿的套体的后方设有与钻体一起旋转的滑动套， 所述滑动套的前端面设有与前述齿配合的齿；所述后套周向可转动，后套内设有 控制滑动套与后端面带有齿的套体配合的控制件，所述滑动套沿控制件的旋转方 向设有与控制件配合的对应锁紧配合状态的凹槽和对应非锁紧配合状态的凹槽。 1. A novel self-locking hand-tight drill chuck comprising a drill body, a jaw, an axially positioned rotary sleeve, a nut, a rear sleeve behind the rotary sleeve, a jaw and a nut threaded connection, characterized in that the drill The collet is provided with a sleeve body surrounding the drill body with teeth on the rear end surface, and the sleeve body with the teeth on the rear end surface is coupled with the rotary sleeve to rotate together; the drill chuck has a sleeve body with a tooth on the rear end surface a sliding sleeve rotating together with the drill body is arranged at the rear, the front end surface of the sliding sleeve is provided with teeth matched with the teeth; the rear sleeve is rotatable in the circumferential direction, and the sliding sleeve and the rear end surface are provided in the rear sleeve The sleeve of the tooth is matched with the control member, and the sliding sleeve is provided with a groove corresponding to the locking engagement state of the control member in the rotation direction of the control member and a groove corresponding to the non-locking engagement state.
2、 如权利要求 1所述的一种新颖自锁式手紧钻夹头， 其特征在于所述钻夹 头设有将滑动套向带有齿的套体方向挤压的弹簧。  2. A novel self-locking hand drill chuck according to claim 1 wherein said drill chuck is provided with a spring that urges the sliding sleeve toward the sleeved housing.
3、 如权利要求 1所述的一种新颖自锁式手紧钻夹头， 其特征在于所述滑动 套所设的对应锁紧配合状态的凹槽和对应非锁紧.配合状态的凹槽设于滑动套的 前端面。  3. A novel self-locking hand-tight drill chuck according to claim 1, wherein the sliding sleeve is provided with a groove corresponding to the locking engagement state and a groove corresponding to the non-locking state. On the front end of the sliding sleeve.
4、 如权利要求 3所述的一种新颖自锁式手紧钻夹头， 其特征在于所述钻夹 头设有将后套向后挤压的弹簧。  A novel self-locking hand drill chuck according to claim 3, wherein said drill chuck is provided with a spring for pressing the rear sleeve backward.
5、如权利要求 4所述的一种新颖自锁式手紧钻夹头， 其特征在于所述后套 的内壁设有凸台，所述将后套向后挤压的弹簧设于后套内壁凸台和带有齿的套体 的后端面之间， 所述弹簧釆用碟簧圏。  A novel self-locking hand-tight drill chuck according to claim 4, wherein the inner wall of the rear sleeve is provided with a boss, and the spring for pressing the rear sleeve backward is disposed on the inner wall of the rear sleeve Between the boss and the rear end face of the toothed sleeve, the spring is spring-loaded with a disc spring.
6、如权利要求 1所述的一种新颖自锁式手紧钻夹头， 其特征在于所述后端 面带有齿的套体与旋转套内壁过盈配合连接。  6. A novel self-locking hand-tight drill chuck according to claim 1, wherein the sleeve body with the teeth on the rear end surface is in an interference fit connection with the inner wall of the rotary sleeve.
7、如权利要求 1所述的一种新颖自锁式手紧钻夹头， 其特征在于所述钻夹 头设有不能相对于钻体活动的后盖，所述后盖设有后套旋转的限位槽，所述后套 设有与限位槽配合的键。  7. A novel self-locking hand-tight drill chuck according to claim 1 wherein said drill chuck is provided with a rear cover that is incapable of moving relative to the drill body, said rear cover being provided with a rear sleeve that rotates a limiting slot, wherein the rear sleeve is provided with a key that cooperates with the limiting slot.
8、 如权利要求 1、 2、 3、 4、 5、 6或 7所述的一种新颖自锁式手紧钻夹头， 其特征在于以夹紧工件的旋转方向为正方向，所述对应非锁紧配合状态的凹槽处 于对应锁紧配合状态的凹槽的反方向上。  8. A novel self-locking hand-tight drill chuck according to claim 1, 2, 3, 4, 5, 6 or 7 wherein the direction of rotation of the clamping workpiece is a positive direction, said corresponding non- The groove in the locking engagement state is in the opposite direction of the groove corresponding to the lock-fit state.
PCT/CN2007/001975 2007-04-10 2007-06-25 A self-locking hammer-drill chuck WO2008122159A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200720107900.1 2007-04-10
CNU2007201079001U CN201012399Y (en) 2007-04-10 2007-04-10 Novel self-locking type clamping head of closefisted drill

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WO2008122159A1 true WO2008122159A1 (en) 2008-10-16

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
US8616561B2 (en) * 2012-04-10 2013-12-31 Apex Brands, Inc. Locking chuck
EP2865471A1 (en) * 2013-10-24 2015-04-29 Röhm GmbH Chuck for drill
WO2016057886A1 (en) * 2014-10-10 2016-04-14 Apex Brands, Inc. Locking chuck
DE102016110110A1 (en) * 2016-06-01 2017-12-07 Röhm Gmbh chuck
JP2018529540A (en) * 2015-09-22 2018-10-11 リャンブリッチ プレシスィオン，エス．エル． Chuck with locking device
WO2022172911A1 (en) * 2021-02-09 2022-08-18 株式会社 ムラテクノロジー Chuck device and electric tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107138774B (en) * 2017-06-23 2023-11-28 浙江三鸥机械股份有限公司 Self-locking drill chuck

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US5435578A (en) * 1993-04-27 1995-07-25 Roehm; Guenter H. Lockable self-tightening hammer-drill chuck
CN2428247Y (en) * 2000-07-18 2001-05-02 周文华 Locking-type hand-fastening driller grip-holder
CN1330992A (en) * 2000-07-03 2002-01-16 罗姆股份有限公司 Drill chuck
CN1483541A (en) * 2002-09-20 2004-03-24 ɽ�������е�ɷ����޹�˾ Power clamped champing chuck for drill

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US5435578A (en) * 1993-04-27 1995-07-25 Roehm; Guenter H. Lockable self-tightening hammer-drill chuck
CN1330992A (en) * 2000-07-03 2002-01-16 罗姆股份有限公司 Drill chuck
CN2428247Y (en) * 2000-07-18 2001-05-02 周文华 Locking-type hand-fastening driller grip-holder
CN1483541A (en) * 2002-09-20 2004-03-24 ɽ�������е�ɷ����޹�˾ Power clamped champing chuck for drill

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8616561B2 (en) * 2012-04-10 2013-12-31 Apex Brands, Inc. Locking chuck
US9352397B2 (en) 2012-04-10 2016-05-31 Apex Brands, Inc. Locking chuck
EP2865471A1 (en) * 2013-10-24 2015-04-29 Röhm GmbH Chuck for drill
US10099295B2 (en) 2013-10-24 2018-10-16 Roehm Gmbh Drill chuck
WO2016057886A1 (en) * 2014-10-10 2016-04-14 Apex Brands, Inc. Locking chuck
US10603722B2 (en) 2014-10-10 2020-03-31 Apex Brands, Inc. Locking chuck
JP2018529540A (en) * 2015-09-22 2018-10-11 リャンブリッチ プレシスィオン，エス．エル． Chuck with locking device
US10406606B2 (en) 2015-09-22 2019-09-10 Stryker Corporation Chuck with locking device
US10758987B2 (en) 2015-09-22 2020-09-01 Stryker Corporation Chuck with locking device
DE102016110110A1 (en) * 2016-06-01 2017-12-07 Röhm Gmbh chuck
WO2022172911A1 (en) * 2021-02-09 2022-08-18 株式会社 ムラテクノロジー Chuck device and electric tool

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