JPS5843637U

JPS5843637U - scanning needle

Info

Publication number: JPS5843637U
Application number: JP13951781U
Authority: JP
Inventors: 工藤　敏行; 和夫伊藤; 正史北村
Original assignee: 三洋電機株式会社
Priority date: 1981-09-18
Filing date: 1981-09-18
Publication date: 1983-03-24

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図イ９口は従来の走査針の針先部分の構成斜視図で
ある。第２図は本考案の走査針の先端部分を示す斜視図
、第３図はその底面図である。第４図は中間品の作成工
程の説明図、第５図は中間品の斜視図、第６図イ１口は
砲台部側面の作成工程の説明図（研磨溝側から見た図）
、第７図は第２研磨板の断面図である。主な図番の説明、２・・・・・・走査針基部、３・・・
・・・砲台部、３ａ・・・・・・底面、５．　６．　７
．　８．　９．　１０・・・・・・第１、第２、第３、
第４、第５、第６稜線、２ａ、２ｂ・・・・・・第１、
第２平面。FIG. 1B is a perspective view of the needle tip portion of a conventional scanning needle. FIG. 2 is a perspective view showing the tip of the scanning needle of the present invention, and FIG. 3 is a bottom view thereof. Figure 4 is an explanatory diagram of the manufacturing process of the intermediate product, Figure 5 is a perspective view of the intermediate product, and Figure 6 A1 is an explanatory diagram of the manufacturing process of the side surface of the turret part (view from the polishing groove side).
, FIG. 7 is a sectional view of the second polishing plate. Explanation of main figure numbers, 2... base of scanning needle, 3...
... Battery part, 3a ... Bottom surface, 5. 6. 7
．． 8. 9. 10...first, second, third,
4th, 5th, 6th ridgeline, 2a, 2b... 1st,
Second plane.

Claims

[Scope of utility model registration request]

In a scanning needle that slides in contact with a track on a disk to detect and reproduce information on the track, first and second ridge lines that slide in contact with the track and extend substantially parallel to the direction in which the track extends; 2 third and fourth ridge lines extending from each ridge line so that the distance between the two calibration lines gradually becomes smaller;
A bottom surface having a ridgeline and a sixth ridgeline connecting the first and second ridgeline ends, and each side surface extending upward with each ridgeline of the bottom surface as a lower limit and including at least the first to fourth ridgelines. a first turret section that is parallel to the disk plane and adjacent to each side surface that includes the first, third, second, and fourth ridge lines; , a scanning needle formed integrally with a scanning needle base having a second plane.