JPS59139395U

JPS59139395U - Head support device for universal parallel ruler

Info

Publication number: JPS59139395U
Application number: JP3388483U
Authority: JP
Inventors: 雅和星野
Original assignee: 旭精密株式会社
Priority date: 1983-03-09
Filing date: 1983-03-09
Publication date: 1984-09-18
Also published as: JPH034560Y2

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 drawings]

第１図は本考案の一実施例の要部を示す概略平面図、第
２図及び第３図はその要部の一作動態様を一部縦断して
示す概略縦断正面図、第４図及び第５図はその要部の他
の作動態様を一部縦断して示す概略縦断正面図である。　　　　　　゛′１：カーソル側リンク、２：カーソル
板、６：ヘッド支持リンク、７：へ、ラド部、１ニスケ
ール、９：上部リンク、１０ａ、１０ｂ：枢軸、１１；
取付基板、１３：揺動支点軸、１４：支持レバー、１５
′：コロ、１６：案内支持面、１７：コロ、１８．１９
：ばね掛軸、２０：ばね部材、２３：補強レバー、２４
：当接ビン、２−５：ばね掛軸、２６：補強ばね。０ａｆｆ９．１０ｂ　　　　　　−FIG. 1 is a schematic plan view showing a main part of an embodiment of the present invention, FIGS. 2 and 3 are schematic longitudinal sectional front views partially showing how the main part operates, and FIGS. FIG. 5 is a schematic longitudinal sectional front view partially longitudinally showing another operating mode of the main part.゛'1: Cursor side link, 2: Cursor plate, 6: Head support link, 7: To, Rad section, 1 scale, 9: Upper link, 10a, 10b: Pivot, 11;
Mounting board, 13: Swing fulcrum shaft, 14: Support lever, 15
': Roller, 16: Guide support surface, 17: Roller, 18.19
: Spring hanging shaft, 20: Spring member, 23: Reinforcement lever, 24
: Contact bottle, 2-5: Spring hanging shaft, 26: Reinforcement spring. 0a ff9. 10b-

Claims

[Scope of utility model registration request]

One end of the upper link is swingably connected to the cursor side link, and the head is swingably connected to the other end of the upper link so that the head and scale can move up and down approximately parallel to the drawing surface. In a flexible parallel ruler formed by connecting support links, a support lever is provided that moves up and down using the cursor side link as a swing fulcrum, and the swing portion of the support lever is set such that the head support link is approximately parallel to the head support link. At the same time, a spring member is stretched between the support lever and the link on the cursor side, and the spring member is placed in contact with the line connecting the swing fulcrum of the support lever and the force application point of the spring member. A head support device suitable for a universal Hirado ruler, which is configured such that the operating angle of the member increases as the head moves upward from the position where the head and the scale contact the drawing board surface.