JPH0262505U

JPH0262505U -

Info

Publication number: JPH0262505U
Application number: JP14050888U
Authority: JP
Priority date: 1988-10-29
Filing date: 1988-10-29
Publication date: 1990-05-10

Description

[Brief explanation of drawings]

第１図は本考案に係る一実施例のフレキシブル
プリント基板を配設した２つの円筒状部材で、ａ
は一部縦断面図、ｂは背面図を示し、第２図はそ
の相対移動状態図で、ａは一部縦断面図、ｂは背
面図を示し、第３図は本考案の他の実施例のフレ
キシブルプリント基板で、ａは要部展開図、ｂは
折返し配置図、ｃは移動状態図をそれぞれ示し、
第４図は本考案の別の実施例のフレキシブルプリ
ント基板で、ａは展開図、ｂは折返し配置図、ｃ
及びｄは移動状態図をそれぞれ示し、第５図ない
し第７図は本考案の更に他の実施例で、第５図は
繰り込み時、第６図は繰り出し中間位置、第７図
は最大繰り出し時で、それぞれａは一部縦断面図
、ｂは背面図を示し、第８図は第１の従来例の一
部破断した斜視図、第９図はその拡大図で、ａは
一部縦断面図、ｂは背面図を示し、第１０図はそ
の相対移動状態図で、ａは一部縦断面図、ｂは背
面図を示し、第１１図は第２の従来例で、ａは一
部縦断面図、ｂは背面図を示し、第１２図はその
相対移動状態図で、ａは一部縦断面図、ｂは背面
図を示す。１１……固定筒、１２……可動筒、１３……フ
レキシブルプリント基板、１３ｂ，１３ｄ……伸
長部、１３ｂ_１，１３ｄ_１……重なりしろとなる
幅広部、１３ｃ……折返し部、１４……電気部品
、１５……ビス。 FIG. 1 shows two cylindrical members on which flexible printed circuit boards according to an embodiment of the present invention are arranged.
is a partial longitudinal sectional view, b is a rear view, FIG. 2 is a diagram of its relative movement, a is a partial vertical sectional view, b is a rear view, and FIG. 3 is another embodiment of the present invention. In the example flexible printed circuit board, a shows an exploded view of the main parts, b shows a folded arrangement view, and c shows a moving state diagram, respectively.
Figure 4 shows a flexible printed circuit board according to another embodiment of the present invention, in which a is a developed view, b is a folded layout view, and c is a flexible printed circuit board according to another embodiment of the present invention.
and d show movement state diagrams, respectively, and FIGS. 5 to 7 show still other embodiments of the present invention, in which FIG. 5 shows the state at the retracted position, FIG. 6 shows the state in the middle of the extended position, and FIG. 7 shows the state at the maximum extended position. In each case, a shows a partially longitudinal sectional view, b shows a back view, FIG. 8 is a partially broken perspective view of the first conventional example, and FIG. 9 is an enlarged view thereof, and a shows a partially longitudinal sectional view. 10 is a diagram showing the state of relative movement, a is a partial longitudinal sectional view, b is a rear view, and FIG. 11 is a second conventional example, and FIG. 11 is a partial longitudinal sectional view. A vertical cross-sectional view, b shows a rear view, FIG. 12 is a diagram of relative movement thereof, a is a partial vertical cross-sectional view, and b shows a rear view. DESCRIPTION OF SYMBOLS 11...Fixed tube, 12...Movable tube, 13...Flexible printed circuit board, 13b, 13d...Extension part, _13b1 , _13d1 ...Wide part serving as an overlapping margin, 13c...Folded part, 14... Electrical parts, 15... screws.

補正平１．１２．１８図面の簡単な説明を次のように補正する。明細書第１４ページ第１６行及び第１８行の「
一部縦断面図」を「縦断面図」と補正する。Amendment 1.12.18. The brief description of the drawing is amended as follows. 14th page, lines 16 and 18 of the specification
"Partial vertical cross-sectional view" is corrected to "longitudinal cross-sectional view."

Claims

[Claims for Utility Model Registration] 1. In a flexible printed circuit board that electrically connects two cylindrical members that move relatively in the axial direction of the cylinders in a space between the two cylindrical members, the first cylindrical member is The supported flexible printed circuit board is extended in a direction perpendicular to the cylindrical axis direction, folded back into an arc shape approximately 180 degrees, and then extended to the vicinity of the beginning of the extension and supported on the second cylindrical member. death,
A flexible printed circuit board characterized in that the center of the arc of the arc-shaped folded portion is substantially parallel to the axial direction of the cylinder. 2. The flexible printed circuit board according to claim 1, wherein the elongated portion of the flexible printed circuit board has a margin in which the range of deformation that is constantly repeated during the entire relative movement of both cylindrical members overlaps at least partially. 3. The flexible printed circuit board is made to be in a neutral state without twisting when it is approximately in the middle position of the relative movement of both cylindrical members, and the total relative movement amount δ is
2. The flexible printed circuit board according to claim 1, wherein the width W of the flexible printed circuit board is smaller than twice the width W of the extended portion of the flexible printed circuit board.