JP2003278468A - Rotary position detection structure of roll screen - Google Patents

Rotary position detection structure of roll screen

Info

Publication number
JP2003278468A
JP2003278468A JP2002087225A JP2002087225A JP2003278468A JP 2003278468 A JP2003278468 A JP 2003278468A JP 2002087225 A JP2002087225 A JP 2002087225A JP 2002087225 A JP2002087225 A JP 2002087225A JP 2003278468 A JP2003278468 A JP 2003278468A
Authority
JP
Japan
Prior art keywords
pulley
position detection
photo interrupter
section
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2002087225A
Other languages
Japanese (ja)
Other versions
JP3797255B2 (en
Inventor
Yoshiyasu Ito
良泰 伊藤
Shinji Adachi
真治 足立
Toshihiro Tanaka
敏裕 田中
Tatsuji Ono
達司 大野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2002087225A priority Critical patent/JP3797255B2/en
Publication of JP2003278468A publication Critical patent/JP2003278468A/en
Application granted granted Critical
Publication of JP3797255B2 publication Critical patent/JP3797255B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a position detection cover preventing the incursion of sunlight or wind and rain and preventing the shakiness or the slippage of a rotary shaft in case of driving. <P>SOLUTION: The number of revolutions of a pulley disc slit section 4 is detected by a photo interrupter 5, and when a position control of a screen 19 is made, the position detection cover 6 for protecting a rotary position detection section 2 comprises a position detection cover body 7, a doorstop section 8 and a connector protection cover 20, the position detection cover body 7 has an opening section mounted by avoiding the interference with a pulley rotary shaft bearing member 10 or a rotary pulley 3 in a state to put a pulley rotary shaft 9 on a U-shaped bracket with a member different from the pulley rotary shaft bearing member 10, at the same time, the position detection cover body has a position detection cover fixed section 23 fixed to a unit outside frame section 11 and a photo interrupter fixed section 28 for fixing the photo interrupter 5, and the doorstop section 8 has a doorstop for preventing the uplift or slippage of the pulley rotary shaft 9 with the pulley disc slit section 4. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、ロールスクリーン
装置の回転位置検出部構造に関する。 【0002】 【従来の技術】図6に示すように、従来、採光窓の遮熱
・遮光(調光)手段として用いられるロールスクリーン
装置54において、スクリーン42の位置制御を例えば
回転プーリー43に一体化された円盤スリット44の回
転数をフォトインタラプタ45による検出にて行う場合
において、一般的にフォトインタラプタ45を使用する
場合、受光面46の飽和を避ける為、外乱光(この場
合、主に太陽光)の侵入を防止し、かつ接続部の信頼性
を確保する為、接続部を太陽光55や風雨56から保護
する必要がある。 【0003】又、図7に示すように、上記構成において
は、巻き取り時、プーリーの回転軸48芯が大きく振れ
るとスリット44の位置がずれる為、フォトインタラプ
タ45からの信号を正確に検出できないことによるスク
リーン19の位置ズレや、突発的外力により回転軸48
が外れ、スリット44がフォトインタラプタ45から完
全に外れることにより検出不可能となり、スクリーンの
異常停止を引き起こす恐れがある。 【0004】そこで、上記位置ズレや異常停止を回避す
る為、図8のように、例えばプーリー回転軸48を支え
る造物49に丸孔部58を形成し、そこに挿入する構造
をとると、今度は、本部品の取り付けおよびメンテナン
ス時の取り外しが困難になってしまうという問題があ
る。 【0005】 【発明が解決しようとする課題】本発明においては、こ
のような従来のロールスクリーンの回転位置検出部構造
が有していた問題や要望を解決することが要求されてい
る。そこで、本発明が解決しようとする課題は、フォト
インタラプタの固定が可能で、太陽光や風雨の侵入を防
止し、フォトインタラプタの長期信頼性を確保するとと
もに、駆動時の回転軸のガタツキや外れの防止が可能と
なり、かつプーリー回転軸支持部に干渉せずにユニット
外枠部に固定できる位置検知カバーを提供することであ
る。 【0006】 【課題を解決するための手段】この課題を解決するため
に本発明は、採光窓の遮光・調光手段として用いられる
ロールスクリーン装置で、回転プーリーに一体化された
プーリー円盤スリット部の回転数をフォトインタラプタ
により検出し、スクリーンの位置制御を行う場合におい
て、回転位置検出部を保護する位置検知カバーが位置検
知カバー本体、あおり止め部、コネクタ保護用カバー部
とで構成され、該位置検知カバー本体がプーリー回転軸
支持部材とは別部材で、該プーリー回転軸支持部材がプ
ーリー回転軸をU字受けに置く状態で、該プーリー回転
軸支持部材や回転プーリーとの干渉を避けて取付ができ
る開口部を有するとともに、ユニット外枠部に固定する
位置検知カバー固定部およびフォトインタラプタを固定
するフォトインタラプタ固定部を有し、該あおり止め部
がプーリー円盤スリット部付プーリー回転軸の浮きや外
れ防止用のあおり止めを有し、該コネクタ保護用カバー
部がフォトインタラプタ接続部を保護するカバーを有す
ることを特徴とする。 【0007】これにより、位置検知カバーにフォトイン
タラプタの固定が可能で、位置検知カバーが太陽光や風
雨の侵入を防止し、フォトインタラプタの長期信頼性を
確保するとともに、駆動時の回転軸のガタツキや外れの
防止が可能となり、かつプーリー回転軸支持部に干渉せ
ずにユニット外枠部に固定することができる。 【0008】 【発明の実施の形態】以下、本発明の実施の形態として
一実施例を図1及至図3に基づいて説明する。 【0009】図1及至図3に示すように、採光窓の遮光
・調光手段として用いられるロールスクリーン装置1
で、回転プーリー3に一体化されたプーリー円盤スリッ
ト部4の回転数をフォトインタラプタ5により検出し、
スクリーン19の位置制御を行う場合において、回転位
置検出部2を保護する位置検知カバー6が位置検知カバ
ー本体7、あおり止め部8、コネクタ保護用カバー部2
0とで構成され、該位置検知カバー本体7がプーリー回
転軸支持部材10とは別部材で、該プーリー回転軸支持
部材10がプーリー回転軸9をU字受けに置く状態で、
該プーリー回転軸支持部材10や回転プーリー3との干
渉を避けて取付ができる開口部を有するとともに、ユニ
ット外枠部11に固定する位置検知カバー固定部23お
よびフォトインタラプタ5を固定するフォトインタラプ
タ固定部28を有し、該あおり止め部8がプーリー円盤
スリット部4付プーリー回転軸9の浮きや外れ防止用の
あおり止めを有し、該コネクタ保護用カバー部20がフ
ォトインタラプタ接続部26を保護するカバーを有す
る。 【0010】上記はプーリー回転軸9を別部材にて支持
し、フォトインタラプタ5を位置検知カバー6のフォト
インタラプタ固定部28に固定するとともに、位置検知
カバー本体7をユニット外枠部11に位置検知カバー取
付部23の位置検知カバー固定孔24で固定する構造と
なっている。位置検知カバー6にプーリー回転軸支持部
材10を設けても良いが、その場合は、組立上、上面に
開口部が必要となる為、そこから太陽光や風雨が侵入し
長期信頼性の観点から好ましくない。したがって、位置
検知カバー6とプーリー回転軸支持部材10は別にする
必要がある。 【0011】位置検知カバー6は開口部を2箇所有する
が、第一開口部21は位置検知カバー6の取付に際しプ
ーリー回転軸支持部材10との干渉を避ける。又、第二
開口部22は位置検知カバー6の取付に際しプーリー回
転軸9との干渉を避ける。 【0012】位置検知カバー6は太陽光や風雨の侵入を
防止する為、3方箱型形状になっており、残りの一方
は、ユニット外枠内面13に突き当て固定することで遮
蔽を行う。 【0013】位置検知カバー6の内部にはプーリー回転
軸9のあおり止め部8を有し、かつ、フォトインタラプ
タ接続部26には保護の為、やはり3方箱形状のコネク
タ保護用カバー部20が設けてある。コネクタ接続に対
し、妨げとなる面は遮蔽できないが他方は全て遮蔽する
ことでフォトインタラプタ接続部26を暗くすることが
でき、接続部の信頼性向上を図る。 【0014】なお、ロールスクリーン装置において、長
期間確実に安定して動作するようにしたプーリー構造
を、図4および図5に示す。スクリーン巻き取り用ワイ
ヤを巻き取る左右のプーリーのワイヤ巻き始め部に半周
程度のガイド溝を形成したプーリー構造と、プーリーの
ワイヤ巻き始め部に傾斜リブを設け、ワイヤの積層を防
止したプーリー構造を有する。これにより、スクリーン
巻き取り用ワイヤをプーリーに積層することなく順序よ
く巻き付けることにより、ワイヤにかかるストレスを軽
減し、かつ左右ワイヤ巻き取り長さ違いの発生を防止で
きる為、スクリーンを均一に真っ直ぐ巻き取ることが可
能となり、スクリーン巻き乱れおよび水下巻き取りロッ
ドへの支持ベース突っかかりがなくなり、長時間安定し
た開閉動作が可能となる。 【0015】 【発明の効果】以上のように本発明によれば、太陽光や
風雨の侵入を防止し、フォトインタラプタの長期信頼性
を確保するとともに、駆動時の回転軸のガタツキや外れ
の防止が可能となり、フォトインタラプタによる位置検
出漏れ(位置ズレ)や検出不可(異常停止)状態を回避
できるため、長期間確実でかつ安定したスクリーン駆動
ができる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for detecting a rotational position of a roll screen device. 2. Description of the Related Art As shown in FIG. 6, in a roll screen device 54 conventionally used as a heat shielding / shading (light control) means for a lighting window, position control of a screen 42 is integrated with a rotary pulley 43, for example. When the photointerrupter 45 is used to detect the rotational speed of the disc-shaped slit 44 that has been converted into light, generally, when the photointerrupter 45 is used, disturbance light (in this case, mainly It is necessary to protect the connection portion from sunlight 55 and wind and rain 56 in order to prevent intrusion of light) and secure the reliability of the connection portion. In addition, as shown in FIG. 7, in the above-described configuration, when the winding shaft 48 of the pulley swings greatly during winding, the position of the slit 44 is shifted, so that the signal from the photo-interrupter 45 cannot be accurately detected. Due to the displacement of the screen 19 and sudden external force.
And the slit 44 is completely removed from the photo-interrupter 45, making it impossible to detect the slit 44 and causing an abnormal stop of the screen. Therefore, in order to avoid the above-mentioned positional deviation and abnormal stop, as shown in FIG. 8, for example, a round hole 58 is formed in a structure 49 supporting a pulley rotating shaft 48, and a structure is inserted therein. However, there is a problem that it becomes difficult to attach the component and remove the component during maintenance. [0005] In the present invention, it is required to solve the problems and demands of the conventional structure for detecting the rotational position of a roll screen. Therefore, the problem to be solved by the present invention is to fix the photointerrupter, prevent invasion of sunlight, wind and rain, secure long-term reliability of the photointerrupter, and prevent the rotation shaft from rattling or coming off during driving. It is an object of the present invention to provide a position detection cover which can prevent the occurrence of the rotation, and can be fixed to the unit outer frame without interfering with the pulley rotating shaft support. SUMMARY OF THE INVENTION In order to solve this problem, the present invention relates to a roll screen device used as a light shielding / light control device for a lighting window, and a pulley disk slit unit integrated with a rotary pulley. When the number of rotations is detected by a photo interrupter and the position of the screen is controlled, a position detection cover for protecting the rotation position detection unit is composed of a position detection cover main body, an anti-sway unit, and a connector protection cover unit. In a state where the position detection cover main body is a separate member from the pulley rotation shaft support member and the pulley rotation shaft support member places the pulley rotation shaft in the U-shaped receiver, avoid interference with the pulley rotation shaft support member and the rotation pulley. It has an opening that can be attached, and fixes the position detection cover fixing part and the photo interrupter that are fixed to the unit outer frame part It has a photo interrupter fixing portion, the tilt stopper has a tilt stopper for preventing the pulley rotating shaft with a pulley disk slit from lifting or coming off, and the connector protecting cover protects the photo interrupter connecting portion. It is characterized by having. [0007] Thus, the photo interrupter can be fixed to the position detecting cover, and the position detecting cover prevents the intrusion of sunlight, wind and rain, secures the long-term reliability of the photo interrupter, and plays back the rotating shaft during driving. It can be secured to the unit outer frame without interfering with the pulley rotating shaft support. An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. FIG. As shown in FIGS. 1 to 3, a roll screen device 1 used as a light shielding / light control means for a daylighting window.
Then, the rotation speed of the pulley disk slit portion 4 integrated with the rotary pulley 3 is detected by the photo interrupter 5,
When the position of the screen 19 is controlled, the position detection cover 6 that protects the rotation position detection unit 2 includes the position detection cover main body 7, the tilt stopper 8, and the connector protection cover 2.
0, the position detection cover main body 7 is a separate member from the pulley rotation shaft support member 10, and the pulley rotation shaft support member 10 places the pulley rotation shaft 9 in the U-shaped receiver,
It has an opening that can be attached while avoiding interference with the pulley rotating shaft support member 10 and the rotating pulley 3, and has a position detection cover fixing portion 23 fixed to the unit outer frame portion 11 and a photo interrupter fixing the photo interrupter 5. The tilt stopper 8 has a tilt stopper for preventing the pulley rotating shaft 9 with the pulley disc slit 4 from floating or coming off, and the connector protecting cover 20 protects the photo interrupter connecting part 26. To have a cover. In the above, the pulley rotating shaft 9 is supported by a separate member, the photo interrupter 5 is fixed to the photo interrupter fixing portion 28 of the position detecting cover 6, and the position detecting cover main body 7 is detected by the unit outer frame portion 11. It is structured to be fixed by the position detection cover fixing hole 24 of the cover attaching portion 23. The position detecting cover 6 may be provided with a pulley rotating shaft support member 10, but in that case, an opening is required on the upper surface for assembling, so that sunlight, wind and rain enter there, and from the viewpoint of long-term reliability. Not preferred. Therefore, the position detection cover 6 and the pulley rotation shaft support member 10 need to be separated. Although the position detecting cover 6 has two openings, the first opening 21 avoids interference with the pulley rotating shaft support member 10 when the position detecting cover 6 is attached. Further, the second opening 22 avoids interference with the pulley rotating shaft 9 when the position detecting cover 6 is attached. The position detecting cover 6 is formed in a three-sided box shape to prevent the invasion of sunlight, wind and rain, and the other one is shielded by abutting and fixing the inner surface 13 of the unit outer frame. The position detecting cover 6 has a pivoting portion 8 for the pulley rotating shaft 9, and the photointerrupter connecting portion 26 has a three-sided box-shaped connector protecting cover portion 20 for protection. It is provided. The surface that hinders the connector connection cannot be shielded, but the other is entirely shielded, so that the photointerrupter connection portion 26 can be darkened, thereby improving the reliability of the connection portion. FIGS. 4 and 5 show a pulley structure which ensures stable operation for a long time in the roll screen device. A pulley structure in which a guide groove of about half a circumference is formed at the wire winding start part of the left and right pulleys that winds the screen winding wire, and a pulley structure that provides an inclined rib at the wire winding start part of the pulley to prevent wire lamination Have. By winding the screen winding wire in order without laminating it on the pulley, the stress applied to the wire can be reduced, and the occurrence of a difference in the winding length between the left and right wires can be prevented. This makes it possible to eliminate the turbulence of the screen winding and sticking of the support base to the underwater winding rod, thereby enabling a stable opening and closing operation for a long time. As described above, according to the present invention, the penetration of sunlight, wind and rain is prevented, the long-term reliability of the photointerrupter is ensured, and the rotation shaft is prevented from rattling or coming off during driving. This makes it possible to avoid a position detection omission (position shift) and a detection impossible (abnormal stop) state by the photointerrupter, so that a stable and stable screen drive can be performed for a long time.

【図面の簡単な説明】 【図1】本発明の位置検知カバー取付状態を示し、
(a)はロールスクリーン装置を上部から内部を見た要
部上面図で、(b)は(a)図のA−A線の要部断面図
である。 【図2】本発明の位置検知カバーを示し、(a)はあお
り止め部と開口部を示す正面図で、(b)は取付部を示
す左側面図で、(c)はコネクタ保護カバー部を示す右
側面図で、(d)はあおり止め位置を示す底面図であ
る。 【図3】本発明の位置検知カバーにフォトインタラプタ
を固定した状態を示し、(a)は開口部とフォトインタ
ラプタを固定した状態を示す正面図で、(b)はフォト
インタラプタを固定した状態を示す右側面図で、(c)
はフォトインタラプタを固定した状態を示す底面図であ
る。 【図4】本発明での回転巻き取りロッドを示し、(a)
はプーリー部を示す正面図で、(b)は(a)のA−A
線断面を示す断面図で、(c)は(a)のB矢視状態を
示す側面図である。 【図5】本発明での回転巻き取りロッドを示し、(a)
はワイヤが巻かれたプーリー部を示す正面図で、(b)
は(a)のC部の拡大を示す部分拡大図である。 【図6】従来のロールスクリーン装置を示し、(a)は
ロールスクリーン装置を上部から内部を見た要部上面図
で、(b)は(a)図のA−A線の要部断面図である。 【図7】従来のロールスクリーン装置の位置検知部を示
し、(a)は太陽光や風雨による影響を示す側面図で、
(b)は回転軸のズレによる影響を示す側面図で、
(c)は外力による影響を示す側面図である。 【図8】従来のロールスクリーン装置の回転軸のガタツ
キおよび外れを防止する一例を示す位置検知部の側面図
である。 【符号の説明】 1 ロールスクリーン装置 2 回転位置検出部 3 回転プーリー 4 プーリー円盤スリット部 5 フォトインタラプタ 6 位置検知カバー 7 位置検知カバー本体 8 あおり止め部 9 プーリー回転軸 10 プーリー回転軸支持部材 11 ユニット外枠部 12 ユニット外枠底面 13 ユニット外枠内面 14 駆動ユニット駆動軸 15 ワイヤ 16 水下側巻き取りロッド 17 巻き取り駆動ユニット 18 フォトインタラプタ信号線 19 スクリーン 20 コネクタ保護用カバー部 21 第一開口部 22 第二開口部 23 位置検知カバー取付部 24 位置検知カバー固定孔 25 フォトインタラプタ固定用雌ネジ部 26 フォトインタラプタ接続部 27 フォトインタラプタ取付ネジ 28 フォトインタラプタ固定部
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a position detection cover mounting state of the present invention,
(A) is a main part top view of the inside of the roll screen device as viewed from above, and (b) is a cross-sectional view of the main part along line AA in (a). FIGS. 2A and 2B show a position detection cover of the present invention, wherein FIG. 2A is a front view showing an anti-raising portion and an opening, FIG. 2B is a left side view showing an attachment portion, and FIG. (D) is a bottom view showing the anti-raising position. 3A and 3B show a state in which a photo interrupter is fixed to the position detection cover of the present invention, wherein FIG. 3A is a front view showing a state in which the opening and the photo interrupter are fixed, and FIG. 3B is a state in which the photo interrupter is fixed. In the right side view shown, (c)
FIG. 4 is a bottom view showing a state where the photo interrupter is fixed. FIG. 4 shows a rotary take-up rod according to the present invention, wherein (a)
Is a front view showing a pulley part, and (b) is AA of (a).
It is sectional drawing which shows a line cross section, (c) is a side view which shows the state of arrow B of (a). FIG. 5 shows a rotary take-up rod according to the present invention, wherein (a)
Is a front view showing a pulley portion around which a wire is wound, and FIG.
3 is a partially enlarged view showing an enlargement of a portion C in FIG. 6A and 6B show a conventional roll screen device, wherein FIG. 6A is a top view of a main portion of the roll screen device as viewed from above, and FIG. 6B is a cross-sectional view of a main portion taken along line AA of FIG. It is. 7A and 7B show a position detection unit of a conventional roll screen device, and FIG. 7A is a side view showing the influence of sunlight or wind and rain;
(B) is a side view showing the influence of the displacement of the rotating shaft,
(C) is a side view showing the influence by external force. FIG. 8 is a side view of a position detection unit showing an example of preventing the rotation axis of the conventional roll screen device from rattling and coming off. [Description of Signs] 1 Roll screen device 2 Rotational position detector 3 Rotary pulley 4 Pulley disk slit 5 Photointerrupter 6 Position detection cover 7 Position detection cover body 8 Tilt stopper 9 Pulley rotation shaft 10 Pulley rotation shaft support member 11 Unit Outer frame portion 12 Unit outer frame bottom surface 13 Unit outer frame inner surface 14 Drive unit drive shaft 15 Wire 16 Underwater winding rod 17 Winding drive unit 18 Photointerrupter signal line 19 Screen 20 Connector protection cover 21 First opening 22 Second Opening 23 Position Detection Cover Attachment 24 Position Detection Cover Fixing Hole 25 Photointerrupter Fixing Female Thread 26 Photointerrupter Connection 27 Photointerrupter Attachment Screw 28 Photointerrupter Fixing

───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 敏裕 大阪府門真市大字門真1048番地松下電工株 式会社内 (72)発明者 大野 達司 大阪府門真市大字門真1048番地松下電工株 式会社内 Fターム(参考) 2E042 AA06 BA00 CB06 CC03    ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Toshihiro Tanaka             1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd.             In the formula company (72) Inventor Tatsushi Ohno             1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd.             In the formula company F-term (reference) 2E042 AA06 BA00 CB06 CC03

Claims (1)

【特許請求の範囲】 【請求項1】 採光窓の遮光・調光手段として用いら
れるロールスクリーン装置で、回転プーリーに一体化さ
れたプーリー円盤スリット部の回転数をフォトインタラ
プタにより検出し、スクリーンの位置制御を行う場合に
おいて、回転位置検出部を保護する位置検知カバーが位
置検知カバー本体、あおり止め部、コネクタ保護用カバ
ー部とで構成され、該位置検知カバー本体がプーリー回
転軸支持部材とは別部材で、該プーリー回転軸支持部材
がプーリー回転軸をU字受けに置く状態で、該プーリー
回転軸支持部材や回転プーリーとの干渉を避けて取付が
できる開口部を有するとともに、ユニット外枠部に固定
する位置検知カバー固定部およびフォトインタラプタを
固定するフォトインタラプタ固定部を有し、該あおり止
め部がプーリー円盤スリット付プーリー回転軸の浮きや
外れ防止用のあおり止めを有し、該コネクタ保護用カバ
ー部がフォトインタラプタ接続部を保護するカバーを有
することを特徴とするロールスクリーンの回転位置検出
部構造。
Claims: 1. A roll screen device used as a light-blocking / light-adjusting means for a lighting window, wherein the number of rotations of a pulley disk slit integrated with a rotary pulley is detected by a photo interrupter, and the screen is screened. When performing position control, the position detection cover that protects the rotation position detection unit is composed of a position detection cover main body, an anti-swing unit, and a connector protection cover unit, and the position detection cover main body is a pulley rotation shaft support member. In a state where the pulley rotation shaft support member puts the pulley rotation shaft in the U-shape receiver, the pulley rotation shaft support member has an opening that can be attached to the pulley rotation shaft support member or the rotation pulley while avoiding interference with the pulley rotation shaft support member. A position detection cover fixing part for fixing the photo interrupter and a photo interrupter fixing part for fixing the photo interrupter. Wherein a portion of the pulley has a stopper for preventing lifting and detachment of the pulley rotating shaft with a disk slit, and the cover for protecting the connector has a cover for protecting a photointerrupter connection portion. Part structure.
JP2002087225A 2002-03-26 2002-03-26 Roll screen rotation position detector structure Expired - Fee Related JP3797255B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002087225A JP3797255B2 (en) 2002-03-26 2002-03-26 Roll screen rotation position detector structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002087225A JP3797255B2 (en) 2002-03-26 2002-03-26 Roll screen rotation position detector structure

Publications (2)

Publication Number Publication Date
JP2003278468A true JP2003278468A (en) 2003-10-02
JP3797255B2 JP3797255B2 (en) 2006-07-12

Family

ID=29233500

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002087225A Expired - Fee Related JP3797255B2 (en) 2002-03-26 2002-03-26 Roll screen rotation position detector structure

Country Status (1)

Country Link
JP (1) JP3797255B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010077796A (en) * 2008-08-25 2010-04-08 Hayashiguchi Kogyo Kk Rolling screen device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010077796A (en) * 2008-08-25 2010-04-08 Hayashiguchi Kogyo Kk Rolling screen device

Also Published As

Publication number Publication date
JP3797255B2 (en) 2006-07-12

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