JPS59173506U

JPS59173506U - hydraulic holder

Info

Publication number: JPS59173506U
Application number: JP6811183U
Authority: JP
Inventors: 近藤　国夫; 芳賀　勝利; 肇水谷
Original assignee: 富士精工株式会社
Priority date: 1983-05-07
Filing date: 1983-05-07
Publication date: 1984-11-20

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

、　　第１図は本考案の一実施例であるハイドロリック
ホルダを示す正面図（一部断面）であり、第２図はその
■−■断面図である。第３図は本考案の別の実施例であ
るホルダを示す、第４図における■−■断面図であり、
第４図はその側面断面図である。第５図は本考案の更に
別の実施例であるホルダを示す正面図（一部断面）であ
る。第６図は、　本考案の更に別の実施例であるホルダ
の要部を示す正面断面図である。第７図も本考案の更に
別の実施例であるホルダの要部を示す正面断面図であ　
−る。２：ホルダ本体、１２．６８ニスリーブ、１６゜７６：
薄肉部、１８．　７４：油室、２２：穴、２４：ピスト
ン、３０，４４，５８，８０：クランプリング、３Ｂ、
　　４６．　６０：傾斜面、７８二油路。第１図第４図, FIG. 1 is a front view (partially sectional) showing a hydraulic holder which is an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line ■-■. FIG. 3 is a sectional view taken along line ■-■ in FIG. 4, showing a holder that is another embodiment of the present invention;
FIG. 4 is a side sectional view thereof. FIG. 5 is a front view (partially in section) showing a holder which is still another embodiment of the present invention. FIG. 6 is a front sectional view showing the main parts of a holder which is still another embodiment of the present invention. FIG. 7 is also a front sectional view showing the main parts of a holder which is still another embodiment of the present invention.
-ru. 2: Holder body, 12.68mm sleeve, 16°76:
Thin wall portion, 18. 74: Oil chamber, 22: Hole, 24: Piston, 30, 44, 58, 80: Clamp ring, 3B,
46. 60: Inclined surface, 782 oil passage. Figure 1 Figure 4

Claims

[Claims for Utility Model Registration] The inner circumferential surface or outer circumferential surface is a fitting surface to be fitted with the outer circumferential surface or inner circumferential surface of the object to be held, and the axial center portion of the fitting surface is It is a thin-walled part that contains an annular hydraulic pressure chamber,
A holter main body whose thin wall portion bulges when hydraulic pressure is supplied to the hydraulic pressure chamber to fix the fitted object to the fitting surface, and a hydraulic pressure supply which supplies hydraulic pressure to the hydraulic pressure chamber. A hydraulic holder including a supply means, wherein a plurality of radial holes are formed in the holder body at equal angular intervals and communicate with the hydraulic pressure chamber and open on the outer circumferential surface or the inner circumferential surface of the holder body. , a piston is fluid-tightly and slidably fitted into each of the radial holes, and the piston is fitted onto a surface of the holder main body that is fitted to the outer circumferential surface or inner circumferential surface formed with the radial holes. 26. A hydraulic holder according to claim 26, wherein a cam member having a retainable inclined surface is fitted to the outer end of the hydraulic holder so as to be movable along the direction of inclination of the inclined surface to close the hydraulic pressure supply means.