JPS60173941U

JPS60173941U - Overhead projector head locking mechanism

Info

Publication number: JPS60173941U
Application number: JP6240784U
Authority: JP
Inventors: 穂苅　三郎; 高田　芳充; 博光中野; 川辺　友明
Original assignee: 株式会社リコー; リコー光学株式会社
Priority date: 1984-04-27
Filing date: 1984-04-27
Publication date: 1985-11-18

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図は本考案の機構を有するオーバーヘッド、プロジ
ェクタの例を示す側面図、第２図は上記オーバーヘッド
プロジェクタの本体の部分を示す斜面図、第３図は上記
オーバーへラドプロジェクタにおけるロック機構部分の
例を示す一部断面正面図、第４図は同上一部断面平面図
、第５図は上記オーバーへラドプロジェクタにおける平
行リンク機構部分の例を示す側面図、第６図は上記平行
リンクのたわみ作用を示す平面図、第７図はヘッド部の
フックとロック部材との関係を示す側面図、第８図はヘ
ッド部のフックとロック部材との関係　　　　　゛を第
７図と異なる作動態様で示す側面図である。１・・・・・・プロジェクタ本体、６・・・・・・ヘッ
ド部、８・・・・・・フック、９・・・・・中ツク部材
、９ａ・・・・・・ロック爪、１Ｂ・・・・・・ロック
解除部材、３５．３６・・・・・・リンク。FIG. 1 is a side view showing an example of an overhead projector having the mechanism of the present invention, FIG. 2 is a perspective view showing the main body of the overhead projector, and FIG. 3 is a view of the locking mechanism of the overhead projector. FIG. 4 is a partial cross-sectional plan view of the same as above, FIG. 5 is a side view showing an example of the parallel link mechanism in the above-mentioned over-rad projector, and FIG. 6 is the deflection of the parallel link. Fig. 7 is a plan view showing the operation, Fig. 7 is a side view showing the relationship between the hook of the head part and the locking member, and Fig. 8 shows the relationship between the hook of the head part and the locking member in a different operating mode from Fig. 7. FIG. 1...Projector body, 6...Head section, 8...Hook, 9...Inner hook member, 9a...Lock claw, 1B ......Lock release member, 35.36...Link.

Claims

[Scope of utility model registration request]

A head section including an illumination light source, a projection lens, etc., and a retracted position in which the head section is moved parallel to the projector body and brought close to the projector body, and a raised position in which it is spaced apart above the projector body. A hook provided on the head section is installed on the side of the projector body, and when the head section is in the retracted position with respect to the projector body, the hook is locked, and a release operation locks the hook. and a locking member for unlocking the locking member, and when the projector is in a normal position, the parallel link bends due to the weight of the head and engages the hook with the locking member shallowly.
A locking mechanism for the head of an over-the-top projector is configured so that when the projector is in an abnormal position, the hook is not deflected and is deeply engaged with the locking member, thereby making it impossible to unlock the hook. .