JPH01106107U - - Google Patents

Info

Publication number
JPH01106107U
JPH01106107U JP20128187U JP20128187U JPH01106107U JP H01106107 U JPH01106107 U JP H01106107U JP 20128187 U JP20128187 U JP 20128187U JP 20128187 U JP20128187 U JP 20128187U JP H01106107 U JPH01106107 U JP H01106107U
Authority
JP
Japan
Prior art keywords
chuck
nut
drill
drill body
base
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.)
Pending
Application number
JP20128187U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP20128187U priority Critical patent/JPH01106107U/ja
Publication of JPH01106107U publication Critical patent/JPH01106107U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案にかかるドリルチヤツク機構の
好適な実施例を示す要部縦断面図、第２図は従来
のドリルチヤツク機構の１例を示す一部破断図で
ある。 ３０……ドリル軸、３２……チヤツクベース、
３２ａ……チヤツク爪ガイド溝、３２ｂ，４０ａ
……内歯部、３４……チヤツク爪、３６……チヤ
ツクナツト、３８……スライドスリーブ、３８ａ
……係止部、５０，５２……遊星歯車。 FIG. 1 is a vertical cross-sectional view of a main part showing a preferred embodiment of a drill chuck mechanism according to the present invention, and FIG. 2 is a partially cutaway view showing an example of a conventional drill chuck mechanism. 30...Drill shaft, 32...Chuck base,
32a...chuck claw guide groove, 32b, 40a
...Internal teeth, 34...Chuck pawl, 36...Chuck nut, 38...Slide sleeve, 38a
... Locking part, 50, 52 ... Planetary gear.

Claims (1)

【実用新案登録請求の範囲】 ドリル軸に固定され複数のチヤツク爪ガイド溝
が設けられたチヤツクベースと、 前記チヤツクベースのチヤツク爪ガイド溝にチ
ヤツクベース軸と所定の傾きで摺動自在に導かれ
るよう装着され外周にチヤツクねじが設けられた
複数のチヤツク爪と、 前記チヤツクベースの周囲に該チヤツクベース
と回動自在に装着され前記チヤツク爪のチヤツク
ねじと噛み合いその回転によつてチヤツク爪をチ
ヤツクベース軸に対して所定の傾きで往復駆動す
るナツトねじ部を有するチヤツクナツトと、 前記チヤツクナツトに対して減速機構を介して
連結されかつ軸方向摺動自在に設けられ、尾端に
ドリル本体と係止する係止部が設けられたスライ
ドスリーブと、を含み、 前記スライドスリーブをドリル本体側に移動さ
せてドリル本体と係止することによつてチヤツク
ナツトを減速機構を介してドリル本体と連接し、
この状態でドリル軸を所望の方向に回転すること
によつてチヤツク爪を倍力駆動して工具の着脱を
行うことを特徴とするドリルチヤツク機構。[Scope of Claim for Utility Model Registration] A chuck base fixed to a drill shaft and provided with a plurality of chuck pawl guide grooves, and a chuck base installed in the chuck pawl guide groove so as to be slidably guided at a predetermined inclination relative to the chuck base shaft. a plurality of chuck pawls each having a chuck screw provided on its outer periphery; and a plurality of chuck pawls mounted around the chuck base so as to be rotatable with the chuck base, and meshing with the chuck screws of the chuck pawls and thereby positioning the chuck pawls in a predetermined position relative to the chuck base axis. a chuck nut having a nut screw portion that reciprocates at an inclination of , and a chuck nut that is connected to the chuck nut via a speed reduction mechanism and is slidably slidable in the axial direction, and has a locking portion that locks with the drill body at the tail end. a slide sleeve that is connected to the drill body, the chuck nut is connected to the drill body via a speed reduction mechanism by moving the slide sleeve toward the drill body and engaging the drill body;
A drill chuck mechanism characterized in that by rotating the drill shaft in a desired direction in this state, the chuck pawl is driven with increased force to attach and detach the tool.
JP20128187U 1987-12-29 1987-12-29 Pending JPH01106107U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20128187U JPH01106107U (en) 1987-12-29 1987-12-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20128187U JPH01106107U (en) 1987-12-29 1987-12-29

Publications (1)

Publication Number Publication Date
JPH01106107U true JPH01106107U (en) 1989-07-17

Family

ID=31491651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20128187U Pending JPH01106107U (en) 1987-12-29 1987-12-29

Country Status (1)

Country Link
JP (1) JPH01106107U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131394A (en) * 1974-07-03 1976-03-17 Kraftwerk Union Ag
JPS5689405A (en) * 1979-11-07 1981-07-20 Welch Thomas R Chuck device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131394A (en) * 1974-07-03 1976-03-17 Kraftwerk Union Ag
JPS5689405A (en) * 1979-11-07 1981-07-20 Welch Thomas R Chuck device

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