JPS6242905U - - Google Patents
Info
- Publication number
- JPS6242905U JPS6242905U JP13623285U JP13623285U JPS6242905U JP S6242905 U JPS6242905 U JP S6242905U JP 13623285 U JP13623285 U JP 13623285U JP 13623285 U JP13623285 U JP 13623285U JP S6242905 U JPS6242905 U JP S6242905U
- Authority
- JP
- Japan
- Prior art keywords
- rotary tool
- gripping
- case member
- drive shaft
- rotation
- 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
Links
- 210000000078 claw Anatomy 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
図はこの考案の実施例を示し、第１図はチヤツ
クの縦断面図、第２図は第１図の―線矢視断
面図、第３図は第２図の部分拡大図、第４図は把
持爪の全体図、第５図は第１図の―線矢視断
面図、第６図は回転工債の正転時における第５図
に相当する図、第７図は同回転工具の逆転時にお
ける同上第５図に相当する図、第８図は一方向ク
ラツチを示し第１図の部分拡大図、第９図は第８
図の―線矢視断面図である。
Ｓ……駆動軸、１……チヤツク、３……把持爪
、４……ねじタツプ（回転工具）、６……ボルト
部材、７……ケース部材、９……貫通孔、１２…
…ナツト部材、１３……係合溝、１４……係止突
条、１４′……係止突条、１５……背面、１８…
…一方向クラツチ。
The figures show an embodiment of this invention, in which Fig. 1 is a longitudinal cross-sectional view of the chuck, Fig. 2 is a cross-sectional view taken along the line - - of Fig. 1, Fig. 3 is a partially enlarged view of Fig. 2, and Fig. 4 is a cross-sectional view of the chuck. is an overall view of the gripping claw, Figure 5 is a sectional view taken along the line - in Figure 1, Figure 6 is a diagram corresponding to Figure 5 when the rotary tool rotates normally, and Figure 7 is a diagram of the same rotary tool. FIG. 8 is a partially enlarged view of FIG. 1 showing a one-way clutch, and FIG. 9 is a diagram corresponding to FIG.
FIG. S...Drive shaft, 1...Chuck, 3...Gripping claw, 4...Screw tap (rotary tool), 6...Bolt member, 7...Case member, 9...Through hole, 12...
...Nut member, 13...Engagement groove, 14...Latching protrusion, 14'...Locking protrusion, 15...Back surface, 18...
…One-way clutch.
Claims (1)
回動自在に支承されるケース部材を設け、このケ
ース部材に周方向複数の回転工具用把持爪を設け
、駆動軸に対するケース部材の一方向への回動で
把持爪同士による回転工具挟持用間隔が狭められ
、逆方向への回動で同上挟持用間隔が拡げられる
よう構成した回転工具用チヤツクにおいて、上記
回転工具に対する各把持爪の圧接部に、回転工具
の軸方向に延びると共にその回転工具の周方向に
並んで設けられる一対の係止突条を形成し、回転
工具への負荷がほぼ無負荷である時には、これら
両係止突条が共に回転工具に圧接し、同上回転工
具が負荷を受ける時には、把持爪の微少の回動で
この把持爪の背面とこれに接するケース部材の一
部とがカム係合して上記一対の係失突条のうち回
転工具の回転方向前方側の係止突条がこの回転工
具の径方向内方側へ移行するよう構成し、かつ、
駆動軸に対するケース部材の上記逆方向への回動
を解除自在に規制する一方向クラツチを設けたこ
とを特徴とする回転工具用チヤツク。 A case member supported rotatably around the axis of the drive shaft is provided on the drive shaft side of a drilling machine, etc., and a plurality of gripping claws for rotating tools in the circumferential direction are provided on this case member, and the case member is fixed in one direction relative to the drive shaft. In a chuck for a rotary tool configured such that the interval between the gripping claws for gripping the rotary tool is narrowed by rotation in the opposite direction, and the interval for gripping the rotary tool by the gripping claws is widened by rotation in the opposite direction, each gripping claw is pressed into contact with the rotary tool. A pair of locking protrusions extending in the axial direction of the rotary tool and arranged in the circumferential direction of the rotary tool are formed on the part, and when the load on the rotary tool is almost no load, these locking protrusions are formed. When both of the strips come into pressure contact with the rotary tool and the rotary tool receives a load, the slight rotation of the gripping claw causes the back surface of the gripping claw to cam engage with a part of the case member that is in contact with the gripping claw. The locking protrusion on the front side in the rotational direction of the rotary tool among the locking protrusions is configured to move inward in the radial direction of the rotary tool, and
A chuck for a rotary tool, characterized in that it is provided with a one-way clutch that releasably restricts rotation of the case member in the opposite direction with respect to the drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13623285U JPS6242905U (en) | 1985-09-04 | 1985-09-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13623285U JPS6242905U (en) | 1985-09-04 | 1985-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6242905U true JPS6242905U (en) | 1987-03-14 |
Family
ID=31039155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13623285U Pending JPS6242905U (en) | 1985-09-04 | 1985-09-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6242905U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54117980A (en) * | 1978-02-17 | 1979-09-13 | Roehm Guenter H | Chuck |
-
1985
- 1985-09-04 JP JP13623285U patent/JPS6242905U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54117980A (en) * | 1978-02-17 | 1979-09-13 | Roehm Guenter H | Chuck |
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