JPH0463305U

JPH0463305U -

Info

Publication number: JPH0463305U
Application number: JP10504890U
Authority: JP
Priority date: 1990-10-04
Filing date: 1990-10-04
Publication date: 1992-05-29

Description

[Brief explanation of the drawing]

第１図は本考案のコレツトチヤツクの一実施例
を示す縦断側面図、第２図は同コレツトチヤツク
におけるコレツトの締付用ナツトからの抜き出し
操作を示す一部縦断側面図、第３図は同上のコレ
ツトと締付用ナツトの連結操作の一部縦断側面図
、第４図〜第６図は本考案のコレツトチヤツクの
他の実施例を示す一部縦断側面図、第７図は従来
のコレツトチヤツクの一例を示す縦断側面図、第
８図は同コレツトチヤツクにおけるコレツトの締
付用ナツトからの抜き出し操作を示す一部縦断面
図である。Ａ，Ｂ，Ｃ，Ｄ……コレツトチヤツク、１１…
…チヤツク本体、１１ｂ……奥細テーパ穴、１２
……コレツト、１２ａ……テーパ部、１３……締
付用ナツト、１４……環状溝、１４ａ……テーパ
面、１５……外向きフランジ部、１５ａ……テー
パ面、１６……第１の内向きフランジ部、１６ａ
……テーパ面、１７……第２の内向きフランジ部
、１７ａ……テーパ面。 Fig. 1 is a vertical sectional side view showing an embodiment of the collector chuck of the present invention, Fig. 2 is a partial longitudinal sectional side view showing the operation of extracting the collet from the tightening nut in the collet chuck, and Fig. 3 is the same collet as above. 4 to 6 are partial longitudinal side views showing other embodiments of the collect chuck of the present invention, and Fig. 7 shows an example of a conventional collect chuck. FIG. 8 is a partial longitudinal sectional view showing the operation of extracting the collet from the tightening nut in the same collet chuck. A, B, C, D...collect check, 11...
...Chuck body, 11b... Deep thin taper hole, 12
... Collet, 12a ... Tapered portion, 13 ... Tightening nut, 14 ... Annular groove, 14a ... Tapered surface, 15 ... Outward flange portion, 15a ... Tapered surface, 16 ... First Inward flange portion, 16a
... Tapered surface, 17 ... Second inward flange portion, 17a ... Tapered surface.

Claims

[Scope of utility model registration request]

a chuck main body having a deep tapered hole at its tip; a collet having a tapered part that is removably fitted into the deep tapered hole so that its diameter can be reduced; It consists of a tightening nut that is removably screwed onto the main body and press-fits the collet into the deep tapered hole to reduce its diameter. An outward flange portion and an annular groove located at the rear of the outward flange portion are formed on the inner circumferential surface of the front end of the tightening nut and overlap the tapered surface of the outward flange portion of the collet. a first inward flange portion having a tapered surface to obtain the desired shape, and a second inward flange portion that engages in the annular groove of the collet; A collet chuck in which at least one of the front peripheral side walls of the flange portion is formed with a tapered surface that slopes rearward toward the axis.