JPH02135109U - - Google Patents

Description

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

第１〜４図は特定考案の実施例を示し、第１図
はチヤツク本体１の正面図、第２図は同断面図、
第３図はチヤツク支持体４とチヤツク爪１１の分
離斜視図、第４図は作用を示した切断正面図であ
る。第５，６図は第２考案の実施例を示し、第５
図はチヤツク支持体４とチヤツク爪１１の分離斜
視図、第６図は作用を示した切断正面図である。
第７図は従来装置の要部の一例を示した断面図、
第８図は従来装置の欠点を示した説明図、第９図
は本考案の改良点を示した説明図である。 １……チヤツク本体、２……挿入孔、３……案
内溝、４……チヤツク支持体、５……ハンドル、
６……スクロール機構、９……チヤツク取付溝、
１０，１０ａ……案内傾斜、１１……チヤツク爪
、１２……傾斜面、１３……チヤツク面、１４…
…裏面、１５……多数の突起、１６……斜面、１
７……微移動面、１８……突出片、１９……横嵌
め溝、２０……係止顎、２１……係止用ピン、２
２……頭部、２５……ばね。 1 to 4 show an embodiment of the specific invention, FIG. 1 is a front view of the chuck body 1, FIG. 2 is a sectional view thereof,
FIG. 3 is an exploded perspective view of the chuck support 4 and the chuck pawl 11, and FIG. 4 is a cutaway front view showing the operation. Figures 5 and 6 show an embodiment of the second invention;
The figure is an exploded perspective view of the chuck support 4 and the chuck pawl 11, and FIG. 6 is a cutaway front view showing the operation.
FIG. 7 is a sectional view showing an example of the main parts of a conventional device;
FIG. 8 is an explanatory diagram showing the drawbacks of the conventional device, and FIG. 9 is an explanatory diagram showing the improvements of the present invention. 1...Chuck body, 2...Insertion hole, 3...Guide groove, 4...Chuck support, 5...Handle,
6...Scroll mechanism, 9...Chuck mounting groove,
10, 10a...Guiding slope, 11...Chuck pawl, 12...Slope surface, 13...Chuck surface, 14...
...back side, 15...many protrusions, 16...slope, 1
7... Fine movement surface, 18... Protruding piece, 19... Horizontal fitting groove, 20... Locking jaw, 21... Locking pin, 2
2...Head, 25...Spring.

Claims (1)

【実用新案登録請求の範囲】 １ 中心に加工物挿入孔を設けたチヤツク本体に
、内端を前記の挿入孔に開口する半径方向の数個
の案内溝をほぼ等角度間隔で設け、各案内溝にス
クロール機構の操作により半径方向に移動するチ
ヤツク爪支持体を嵌合し、該各チヤツク爪支持体
に回転方向後方に下がる一方向の滑り案内傾斜を
設け、該滑り案内傾斜に、チヤツク爪支持体と一
緒に半径方向へ移動すると共に半径方向と直角の
後方への移動を可能にしたチヤツク爪をばね弾力
により圧接したことを特徴とするスクロールチヤ
ツク。 ２ 中心に加工物挿入孔を設けたチヤツク本体に
、前記の挿入孔に内端を開口する半径方向の数個
の案内溝をほぼ等角度間隔で設け、各案内溝にス
クロール機構の操作により半径方向に移動するチ
ヤツク爪支持体を嵌合し、該各チヤツク爪支持体
に中央から円方向の前後両方に下がる滑り案内傾
斜を設け、該滑り案内傾斜に、チヤツク爪支持体
と一緒に半径方向内方への移動すると半径方向と
直角の方向への移動を可能にしたチヤツク爪をば
ね弾力により圧接したことを特徴とするスクロー
ルチヤツク。[Scope of Claim for Utility Model Registration] 1. A chuck body having a workpiece insertion hole in the center is provided with several guide grooves in the radial direction at approximately equal angular intervals, the inner end of which opens into the insertion hole, and each guide groove A chuck pawl support that moves in the radial direction by the operation of a scroll mechanism is fitted into the groove, and each chuck pawl support is provided with a sliding guide slope in one direction downward in the rotational direction, and a chuck pawl is attached to the sliding guide slope. A scroll chuck characterized in that a chuck pawl that can move in the radial direction together with the support body and can also move rearward perpendicular to the radial direction is pressed by spring elasticity. 2. In the chuck body, which has a workpiece insertion hole in the center, several guide grooves in the radial direction, the inner end of which opens in the insertion hole, are provided at approximately equal angular intervals. chuck pawl supports that move in the direction, and each chuck pawl support is provided with a sliding guide ramp that descends from the center in both the front and rear directions in a circular direction, and the sliding guide slope is provided with a sliding guide ramp that moves in the radial direction together with the chuck pawl support. A scroll chuck characterized by a chuck pawl that is pressed against the chuck pawl by spring elasticity, which allows the chuck pawl to move in a direction perpendicular to the radial direction when it moves inward.