JPS61149892U

JPS61149892U -

Info

Publication number: JPS61149892U
Application number: JP3299885U
Authority: JP
Priority date: 1985-03-08
Filing date: 1985-03-08
Publication date: 1986-09-16
Also published as: JPH0345198Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る微動装置を組込んだ装置
の一実施例を測量機を例として示す部分縦断面図
、第２図は微動装置の実施例を示す横断面図、第
３Ａ図は第２図のＡ―Ａ断面拡大図、第３Ｂ
図は第２図のＢ―Ｂ断面拡大図、第４図は第
２図の―断面を一部省略して示す断面図、第
５図は緊定枠とそれに組込まれる構成要素の関係
を示す分解斜視図である。１３，１４…緊定枠、２１…緊定駒、２４…プ
ツシユロツド、３０…偏心カム、３２…Ｌ字形レ
バー、３５…円筒管、３６…緊定用中空軸体、３
７…外筒、３７ａ…端部、３８…中間中空軸体、
３８ａ…雌ネジ部、３８ｂ…鍔部、４５…微動軸
。 Fig. 1 is a partial vertical sectional view showing an embodiment of a device incorporating a fine movement device according to the present invention, taking a surveying instrument as an example, Fig. 2 is a cross sectional view showing an embodiment of the fine movement device, and Fig. 3A is a Enlarged cross-sectional view of AA in Figure 2, 3B
The figure is an enlarged cross-sectional view taken along line B-B in Figure 2, Figure 4 is a cross-sectional view of Figure 2 with the cross-section partially omitted, and Figure 5 shows the relationship between the tensioning frame and the components incorporated into it. It is an exploded perspective view. 13, 14... Tensioning frame, 21... Tensioning piece, 24... Push rod, 30... Eccentric cam, 32... L-shaped lever, 35... Cylindrical tube, 36... Hollow shaft for tensioning, 3
7... Outer cylinder, 37a... End, 38... Intermediate hollow shaft body,
38a...Female screw part, 38b...flange part, 45...fine movement shaft.

Claims

[Claims for Utility Model Registration] The rotation of the holder part is finely adjusted by tightening a rotating shaft that allows the holder part to rotate freely with respect to the base part via a tensioning frame, and making slight movements. In the rotating shaft fine movement device, an outer cylinder is inserted and fixed to the holder portion with its end protruding, a collar portion is formed on the outer circumferential surface, and a female screw portion is formed on the inner circumferential surface, and the outer cylinder is inserted into the outer cylinder, an intermediate hollow shaft body fixed with screws in the axial direction of the outer cylinder with the flange abutting the end part; and rotatably mounted inside the outer cylinder outside the intermediate hollow shaft body, A tensioning hollow shaft body has a tensioning operation knob fixed to one end thereof, and a male threaded part is formed to be screwed into the female threaded part to slightly rotate the holder part inside the intermediate hollow shaft body. 1. A rotating shaft fine adjustment device comprising a fine adjustment shaft body which is mounted so as to be movable forward and backward, and has a fine adjustment operation knob fixed coaxially with the tightening operation knob at one end thereof.