JPH0468311U

JPH0468311U -

Info

Publication number: JPH0468311U
Application number: JP11240690U
Authority: JP
Priority date: 1990-10-25
Filing date: 1990-10-25
Publication date: 1992-06-17

Description

[Brief explanation of drawings]

第１図は本考案の一実施例のプリント板の接点
パターンを示すプリント板表面から見た平面図、
第２図は第１図に示す本実施例に対向するラバー
の導電接点部を示す平面図、第３図は第１図に示
す本実施例と第２図に示すラバーとの組合せの適
用例を示す断面図、第４図は従来のプリント板の
接点パターンの一例を示すプリント板表面から見
た平面図、第５図は第４図に示す従来の接点パタ
ーンに対向するラバーの導電接点部を示す平面図
、第６図は第４図に示す従来のプリント板の接点
パターンの第５図に示すラバーとの組合せの一例
を示す断面図、第７図は第６図のボタンを矢印方
向に押下した場合のラバーの状態を示す断面図で
ある。１……接点部、１ａ，１ｂ……第１の接点群、
２ａ，２ｂ……第２の接点群、３……ボタン、４
ａ……ラバー、５ａ……導電接点部、６ａ……プ
リント板、７ａ……円板上導電部、８ａ……リン
グ状導電部、１７……キートツプ、１８……ラバ
ー、２０……接点パターン、２１……第１の接点
群、２１ａ……パターン、２２……第２の接点群
、２２ａ……パターン、２３……スルーホール、
２４……間隔、２５……プリント板、２５ａ……
表面、２６……裏面、３０……導電接点部、３１
……第１の導電接点部、３２……第２導電接点部
。 FIG. 1 is a plan view seen from the surface of the printed board showing the contact pattern of a printed board according to an embodiment of the present invention;
FIG. 2 is a plan view showing the conductive contact portion of the rubber opposite to the embodiment shown in FIG. 1, and FIG. 3 is an application example of the combination of the embodiment shown in FIG. 1 and the rubber shown in FIG. FIG. 4 is a plan view from the surface of the printed board showing an example of the contact pattern of a conventional printed board; FIG. 5 is a rubber conductive contact portion facing the conventional contact pattern shown in FIG. 4. 6 is a sectional view showing an example of the combination of the conventional printed board contact pattern shown in FIG. 4 with the rubber shown in FIG. 5, and FIG. 7 is a cross-sectional view showing the button in FIG. FIG. 3 is a cross-sectional view showing the state of the rubber when pressed down. 1... Contact portion, 1a, 1b... First contact group,
2a, 2b...second contact group, 3...button, 4
a...Rubber, 5a...Conductive contact part, 6a...Printed board, 7a...Disc conductive part, 8a...Ring-shaped conductive part, 17...Key top, 18...Rubber, 20...Contact pattern , 21...first contact group, 21a...pattern, 22...second contact group, 22a...pattern, 23...through hole,
24... Interval, 25... Printed board, 25a...
Front surface, 26... Back surface, 30... Conductive contact portion, 31
. . . first conductive contact portion, 32… second conductive contact portion.

Claims

[Scope of utility model registration request]

They have a fan shape on the surface of the printed board, and are arranged at approximately 90 degrees on the same circumferential plane with respect to the center which is approximately coaxial with the center of the rubber conductive contact portion, and through the back surface of the printed board. four first contact pieces that are connected to each other via holes; and four first contact pieces that have a fan shape and are adjacent to the first contact pieces and are approximately on the circumferential plane in a clockwise direction with respect to the center. a first contact group consisting of a second contact piece arranged at a position of 22.5 degrees and whose narrower fan-shaped contact piece connects to the circular part at the center; Each contact piece has approximately the same shape as the contact piece, and is arranged at a position of approximately 22.5° on the circumferential plane in a clockwise direction from the center with respect to the second contact point, and is located on the back surface of the printed board. four third contact pieces that are connected to each other via through holes; and a sector-shaped third contact piece that is adjacent to the three contact pieces and extends approximately on the circumferential plane in a clockwise direction with respect to the center. The wider side of the fan shape is located at a position of 22.5° and is located at a circumferential portion centered on the center.
A structure of a contact pattern of a printed circuit board, comprising a second contact group consisting of a fourth contact piece connected in a ring shape so as to surround the second and third contact pieces.