JP2019143365A

JP2019143365A - Roll screen

Info

Publication number: JP2019143365A
Application number: JP2018028465A
Authority: JP
Inventors: 智司飯泉; Satoshi Iiizumi; 宣博椎名; Norihiro Shiina
Original assignee: Toso KK
Current assignee: Tosoh Corp
Priority date: 2018-02-21
Filing date: 2018-02-21
Publication date: 2019-08-29
Anticipated expiration: 2038-02-21
Also published as: JP6964015B2

Abstract

To block incident light from a gap between a window-side windup pipe and an indoor-side windup pipe even in a case where lower edges of a window-side curtain and an indoor-side curtain reach the winding upper limit position or the feeding lower limit position.SOLUTION: A window-side windup pipe 16 is rotatably attached to the upper side and the window-side of a pair of support members 13, 14 attached to both ends of a support bar 15. An indoor-side windup pipe 17 is rotatably attached to the lower side and the indoor side of the pair of support members. A window-side curtain 18 whose upper end is fixed to the window-side windup pipe is wound on the window-side windup pipe. An indoor-side curtain 19 whose upper end is fixed to the indoor-side windup pipe is wound on the indoor-side windup pipe. The support bar comprises a bar main body 15a and a cover part 15b. A light leakage preventing member 20 has a width substantially the same as the width of the cover part, and whose base end is rotatably attached to the inner surface of the cover part. The vicinity of the leading end of the light leakage preventing member is always in contact with the upper surface of the indoor-side windup pipe or the upper surface of the indoor-side curtain wound on the indoor-side winding pipe.SELECTED DRAWING: Figure 1

Description

本発明は、２本の巻取パイプを有するロールスクリーンに関する。更に詳しくは、窓側幕体の上端が固定された窓側巻取パイプと、室内側幕体の上端が固定された室内側巻取パイプとを有し、これらの巻取パイプ間に隙間が設けられたロールスクリーンに関するものである。 The present invention relates to a roll screen having two winding pipes. More specifically, it has a window side winding pipe with the upper end of the window side curtain fixed, and an indoor side winding pipe with the upper end of the indoor side curtain fixed, and a gap is provided between these winding pipes. It relates to a roll screen.

従来、一対のサイドプレートの間に２つの巻取パイプが配置され、各巻取パイプにスクリーンの一端が巻取り及び繰出し可能に連結されており、上方かつ正面側に配置される一方の巻取パイプに連結されるスクリーンは、正面側から昇降するようになっており、かつその巻取り上限位置において、それぞれの巻取パイプに巻取られたスクリーンの巻取部分同士の間で形成される上下方向の隙間を正面から見て覆い隠すように、その巻取上限位置が設定されたロールスクリーンが開示されている（例えば、特許文献１参照。）。 2. Description of the Related Art Conventionally, two winding pipes are arranged between a pair of side plates, and one end of a screen is connected to each winding pipe so as to be capable of winding and unwinding. The screen connected to the upper and lower sides of the screen is moved up and down from the front side, and is formed between the winding portions of the screen wound around each winding pipe at the winding upper limit position. A roll screen in which the winding upper limit position is set so as to cover the gap when viewed from the front is disclosed (for example, see Patent Document 1).

このように構成されたロールスクリーンでは、一方の巻取パイプに連結されたスクリーンの巻取り上限位置において、そのスクリーンの巻取パイプに巻取られていないスクリーン部分が、上記隙間を覆い隠すため、この隙間からの光漏れを防止できる。また、一方の巻取パイプに連結されたスクリーンを、正面側から昇降するように巻取パイプに巻取り及び繰出し可能に連結すると、スクリーンの巻取り上限位置において、そのスクリーンの巻取パイプに巻取られていないスクリーン部分が、よりバランス的な役目を果たして、意匠性をより良好にすることができる。 In the roll screen configured in this manner, the screen portion that is not wound on the winding pipe of the screen at the winding upper limit position of the screen connected to one winding pipe covers the gap, Light leakage from this gap can be prevented. Further, when the screen connected to one of the winding pipes is connected to the winding pipe so as to be lifted and lowered from the front side so that the screen can be wound and fed out, the screen is wound around the winding pipe of the screen at the upper winding position of the screen. The screen part which is not taken can play a more balanced role and can improve the design.

特許第３７６５９９６号公報（請求項１、段落［０００８］、図１、図２）Japanese Patent No. 3765996 (Claim 1, paragraph [0008], FIG. 1 and FIG. 2)

しかし、上記従来の特許文献１に示されたロールスクリーンでは、一方の巻取パイプに連結されたスクリーンをその巻取り上限位置まで巻取っても、そのスクリーンの巻取パイプからの展開長さ（垂れ下がり長さ）が比較的長いため、見栄えを損なうとともに、スクリーンの下縁に設けられたウエイトバーが他方の巻取パイプの下面より下方に位置するため、窓の最大開口面積を狭めてしまう不具合があった。 However, in the conventional roll screen disclosed in Patent Document 1, even if the screen connected to one of the winding pipes is wound up to its upper winding upper limit position, the unfolded length of the screen from the winding pipe ( (Loop length) is relatively long, so it looks bad and the weight bar provided at the lower edge of the screen is located below the lower surface of the other winding pipe, which reduces the maximum opening area of the window. was there.

本発明の目的は、窓側幕体及び室内側幕体の下端縁が巻取り上限位置又は繰出し下限位置のいずれに達しても、或いは両位置の中間位置にあっても、窓側巻取パイプ及び室内側巻取パイプ間の隙間からの光の進入を遮ることができるとともに、窓側幕体及び室内側幕体の下端縁が巻取り上限位置に達したときの窓側幕体及び室内側幕体の見栄えを損なわず、かつ窓の最大開口面積を狭めることがない、ロールスクリーンを提供することにある。 It is an object of the present invention to provide a window-side winding pipe and a chamber, regardless of whether the lower end edge of the window-side curtain body and the indoor-side curtain body reaches either the winding upper limit position or the feeding lower limit position, or the intermediate position between both positions. The entrance of light from the gap between the inner winding pipes can be blocked, and the appearance of the window curtain and the indoor curtain when the lower edge of the window curtain and the indoor curtain reaches the winding upper limit position. It is an object of the present invention to provide a roll screen that does not damage the window and does not reduce the maximum opening area of the window.

本発明の第１の観点は、図１に示すように、壁１１、窓枠又は天井に複数のブラケット１２を介して取付けられかつ両端に一対の支持部材１３，１４が取付けられた単一の支持バー１５と、一対の支持部材１３，１４の上部かつ窓側に回転可能に取付けられた窓側巻取パイプ１６と、一対の支持部材１３，１４の下部かつ室内側に回転可能に取付けられた室内側巻取パイプ１７と、窓側巻取パイプ１６に上縁が固定され窓側巻取パイプ１６に繰出し可能に巻取られる窓側幕体１８と、室内側巻取パイプ１７に上縁が固定され室内側巻取パイプ１７に繰出し可能に巻取られる室内側幕体１９とを備えたロールスクリーン１０において、支持バー１５が、窓側巻取パイプ１６及び室内側巻取パイプ１７と平行に設けられブラケット１２に係止されるバー本体１５ａと、このバー本体１５ａの室内側の側縁から垂下されたカバー部１５ｂとを有し、カバー部１５ｂの幅と略同一の幅を有する光漏れ防止部材２０の基端縁がカバー部１５ｂの内面に回動可能に取付けられ、光漏れ防止部材２０の先端縁近傍が室内側巻取パイプ１７の上面又は室内側巻取パイプ１７に巻取られた室内側幕体１９の上面に常に接触するように構成されたことを特徴とする。 As shown in FIG. 1, the first aspect of the present invention is a single unit in which a plurality of brackets 12 are attached to a wall 11, a window frame or a ceiling, and a pair of support members 13 and 14 are attached to both ends. A support bar 15, a window-side take-up pipe 16 that is rotatably attached to the upper side of the pair of support members 13 and 14 and the window side, and a chamber that is rotatably attached to the lower side and the indoor side of the pair of support members 13 and 14. The upper edge is fixed to the inner winding pipe 17, the window side winding pipe 16 so that the upper edge is fixed to the window side winding pipe 16, and the upper edge is fixed to the indoor side winding pipe 17. In the roll screen 10 provided with the indoor side curtain body 19 that is wound around the winding pipe 17 so as to be unwound, a support bar 15 is provided in parallel with the window side winding pipe 16 and the indoor side winding pipe 17 and is attached to the bracket 12. Locked It has a bar main body 15a and a cover portion 15b hanging from the indoor side edge of the bar main body 15a, and the base end edge of the light leakage preventing member 20 having a width substantially the same as the width of the cover portion 15b is covered. It is rotatably attached to the inner surface of the portion 15b, and the vicinity of the leading edge of the light leakage prevention member 20 is on the upper surface of the indoor winding pipe 17 or the upper surface of the indoor curtain 19 wound around the indoor winding pipe 17. It is characterized by being configured to always contact.

本発明の第２の観点は、第１の観点に基づく発明であって、更に図１に示すように、カバー部１５ｂの下端縁が室内側巻取パイプ１７の上面より所定の距離だけ上方又は下方に位置するように構成され、光漏れ防止部材２０の基端縁がヒンジ部材２１を介してカバー部１５ｂの内面に回動可能に取付けられ、ヒンジ部材２１が、カバー部１５ｂの内面に水平方向に延びて形成されたヒンジ用被係合部２１ａと、光漏れ防止部材２０の基端縁に形成されヒンジ用被係合部２１ａに相対的に回動可能に係合するヒンジ用係合部２１ｂとを有し、光漏れ防止部材２０の先端縁近傍が室内側巻取パイプ１７の上面又は室内側巻取パイプ１７に巻取られた室内側幕体１９の上面にその自重により常に接触するように構成されたことを特徴とする。 The second aspect of the present invention is an invention based on the first aspect, and as shown in FIG. 1, the lower end edge of the cover portion 15b is above the upper surface of the indoor side take-up pipe 17 by a predetermined distance or The base end edge of the light leakage prevention member 20 is pivotally attached to the inner surface of the cover portion 15b via the hinge member 21, and the hinge member 21 is horizontal to the inner surface of the cover portion 15b. Hinged engagement portion 21a formed extending in the direction, and hinge engagement formed on the base end edge of the light leakage prevention member 20 and rotatably engaged with the hinged engagement portion 21a. 21b, and the vicinity of the leading edge of the light leakage prevention member 20 is always in contact with the upper surface of the indoor windup pipe 17 or the upper surface of the indoor curtain body 19 wound around the indoor windup pipe 17 by its own weight. It is comprised so that it may do.

本発明の第３の観点は、第２の観点に基づく発明であって、更に図１〜図３に示すように、ヒンジ用被係合部２１ａが横断面略伏せＣ字状に形成され、ヒンジ用係合部２１ｂが横断面略Ｔ字状に形成され、ヒンジ用係合部２１ｂのＴ字の頂部がヒンジ用被係合部２１ａのＣ字の内部に収容されたことを特徴とする。 A third aspect of the present invention is an invention based on the second aspect, and as shown in FIGS. 1 to 3, the engaged portion 21a for the hinge is formed in a substantially C-shaped cross section, The hinge engaging portion 21b is formed in a substantially T-shaped cross section, and the top of the T-shape of the hinge engaging portion 21b is accommodated inside the C-shape of the hinge engaged portion 21a. .

本発明の第１の観点のロールスクリーンでは、支持バーのカバー部の幅と略同一の幅を有する光漏れ防止部材の基端縁をカバー部の内面に回動可能に取付け、光漏れ防止部材の先端縁近傍が室内側巻取パイプの上面又は室内側巻取パイプに巻取られた室内側幕体の上面に常に接触するように構成したので、窓側幕体及び室内側幕体を窓側巻取パイプ及び室内側巻取パイプにそれぞれ巻取って、窓側幕体及び室内側幕体の下端縁が巻取り上限位置にそれぞれ達したときに、室外の直射光が窓側巻取パイプ及び室内側巻取パイプ間の隙間を通って室内に進入しようとしても、この直射光は光漏れ防止部材及びカバー部により遮られる。また、窓側幕体が光を透過可能な幕体、即ち透光可能な幕体であり、室内側幕体が光を遮蔽可能な幕体、即ち遮光可能な幕体である場合に、室内側幕体の下端縁が繰出し下限位置に達し、かつ窓側幕体の下端縁が巻取り上限位置に達するか、中間位置にあるか、或いは繰出し下限位置に達したとき、透光可能な窓側幕体の下方を通過した光、或いは透光可能な窓側幕体を透過した光が窓側巻取パイプ及び室内側巻取パイプ間の隙間を通って室内に進入しようとしても、この光は光漏れ防止部材及びカバー部により遮られるとともに、室内側巻取パイプの下方から進入しようとする光は遮光可能な室内側幕体により遮られる。更に、窓側幕体及び室内側幕体の双方が光を遮蔽可能な幕体、即ち遮光可能な幕体である場合に、室内側幕体の下端縁が繰出し下限位置に達し、かつ窓側幕体の下端縁が巻取り上限位置に達したとき、透光可能な窓側幕体の下方を通過した光が窓側巻取パイプ及び室内側巻取パイプ間の隙間を通って室内に進入しようとしても、この光は光漏れ防止部材及びカバー部により遮られるとともに、室内側巻取パイプの下方から進入しようとする光は遮光可能な室内側幕体により遮られる。この結果、窓側幕体及び室内側幕体が巻取り上限位置又は繰出し下限位置のいずれに達しても、或いは両位置の中間位置にあっても、窓側巻取パイプ及び室内側巻取パイプ間の隙間からの光の進入を光漏れ防止部材及びカバー部により遮ることができる。一方、窓側幕体及び室内側幕体が巻取り上限位置に達したとき、窓側幕体の下端縁がバー本体の窓側の側縁近傍まで窓側巻取パイプに巻取られ、室内側幕体の下端縁がカバー部の下端縁近傍まで室内側巻取パイプに巻取られるため、窓側幕体及び室内側幕体の見栄えを損なわず、かつ窓の最大開口面積を狭めずに済む。 In the roll screen according to the first aspect of the present invention, the base end edge of the light leakage prevention member having a width substantially the same as the width of the cover portion of the support bar is rotatably attached to the inner surface of the cover portion. The front edge of the door is always in contact with the upper surface of the indoor winding pipe or the upper surface of the indoor curtain wound around the indoor winding pipe. Winding around the take-up pipe and the indoor side take-up pipe, respectively, and when the lower end edge of the window side curtain and the indoor side curtain reaches the take-up upper limit position, the outdoor direct light is reflected on the window side take-up pipe and the indoor side wind pipe. Even if it tries to enter the room through the gap between the intake pipes, the direct light is blocked by the light leakage prevention member and the cover part. Further, if the window curtain is a light-transmissive curtain, that is, a light-transmissive curtain, and the indoor curtain is a light-shieldable curtain, that is, a light-shieldable curtain, the indoor side When the lower end edge of the curtain body reaches the feeding lower limit position, and the lower end edge of the window side curtain body reaches the winding upper limit position, at the intermediate position, or when it reaches the feeding lower limit position, the window side curtain body that can transmit light Even if light that has passed through the lower side of the light or light that has passed through the translucent window curtains enters the room through the gap between the window-side winding pipe and the indoor-side winding pipe, the light is prevented from leaking. In addition to being blocked by the cover portion, the light entering from the lower side of the indoor winding pipe is blocked by the indoor curtain body capable of blocking light. Further, when both the window curtain and the indoor curtain are light shielding curtains, that is, curtains that can be shielded from light, the lower edge of the indoor curtain reaches the feeding lower limit position, and the window curtain. When the lower edge of the wind reaches the upper winding position, even if light that has passed under the translucent window curtain is about to enter the room through the gap between the window winding pipe and the indoor winding pipe, This light is blocked by the light leakage prevention member and the cover part, and the light entering from the lower side of the indoor winding pipe is blocked by the indoor curtain that can be blocked. As a result, even if the window side curtain body and the indoor side curtain body reach either the winding upper limit position or the feeding lower limit position, or in the middle position between the two positions, the window side winding pipe and the indoor side winding pipe are The entrance of light from the gap can be blocked by the light leakage prevention member and the cover part. On the other hand, when the window side curtain body and the indoor side curtain body reach the winding upper limit position, the lower edge of the window side curtain body is wound around the window side winding edge of the bar body to the window side winding pipe, Since the lower end edge is wound on the indoor winding pipe up to the vicinity of the lower end edge of the cover portion, the appearance of the window side curtain body and the indoor side curtain body is not impaired, and the maximum opening area of the window is not reduced.

本発明の第２の観点のロールスクリーンでは、カバー部の下端縁を室内側巻取パイプの上面より所定の距離だけ上方又は下方に位置するように構成し、光漏れ防止部材の基端縁をヒンジ部材を介してカバー部の内面に回動可能に取付け、カバー部の内面に形成されたヒンジ用被係合部に、光漏れ防止部材の基端縁に形成されたヒンジ用係合部を相対的に回動可能に係合し、更に光漏れ防止部材の先端縁近傍が室内側巻取パイプの上面又は室内側巻取パイプに巻取られた室内側幕体の上面にその自重により常に接触するように構成したので、比較的簡単な構造で窓側巻取パイプ及び室内側巻取パイプ間の隙間からの光の進入を光漏れ防止部材及びカバー部により遮ることができる。 In the roll screen according to the second aspect of the present invention, the lower end edge of the cover portion is configured to be positioned above or below a predetermined distance from the upper surface of the indoor winding pipe, and the base end edge of the light leakage prevention member is formed. A hinge member is pivotally attached to the inner surface of the cover portion, and the hinge engaging portion formed on the base end edge of the light leakage preventing member is attached to the hinge engaged portion formed on the inner surface of the cover portion. Engage in a relatively rotatable manner, and the vicinity of the leading edge of the light leakage prevention member is always on the upper surface of the indoor winding pipe or the upper surface of the indoor curtain body wound around the indoor winding pipe by its own weight. Since they are configured to come into contact with each other, the light leakage prevention member and the cover portion can block light from entering through the gap between the window side winding pipe and the indoor side winding pipe with a relatively simple structure.

本発明の第３の観点のロールスクリーンでは、ヒンジ用係合部のＴ字の頂部をヒンジ用被係合部のＣ字の内部に収容したので、ヒンジ用係合部がヒンジ用被係合部から外れることがなく、ヒンジ用係合部のＴ字の頂部がヒンジ用被係合部のＣ字の内部を低摩擦抵抗で摺動できる。即ち、光漏れ防止部材とカバー体との係合が外れず、光漏れ防止部材がヒンジ部材を中心にスムーズに回動できる。 In the roll screen according to the third aspect of the present invention, since the top of the T-shaped portion of the hinge engaging portion is accommodated inside the C-shaped portion of the hinge engaged portion, the hinge engaging portion is engaged with the hinge engaged portion. The top of the T-shape of the hinge engaging portion can slide within the C-shape of the hinge-engaged portion with low friction resistance. That is, the light leakage prevention member and the cover body are not disengaged, and the light leakage prevention member can smoothly rotate about the hinge member.

本発明第１実施形態のロールスクリーンの窓側幕体及び室内側幕体が繰出し下限位置に達した状態を示す図４のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 4 which shows the state which the window side curtain and the indoor side curtain of the roll screen of 1st Embodiment of this invention reached the delivery minimum position. そのロールスクリーンの窓側幕体及び室内側幕体が巻取り上限位置に達した状態を示す図１に対応する断面図である。It is sectional drawing corresponding to FIG. 1 which shows the state which the window side curtain and the indoor side curtain of the roll screen reached the winding upper limit position. （ａ）は図１のＢ部拡大断面図であり、（ｂ）は図２のＣ部拡大断面図である。(A) is the B section expanded sectional view of FIG. 1, (b) is the C section expanded sectional view of FIG. そのロールスクリーンの窓側幕体及び室内側幕体が繰出し下限位置に達した状態を示す図１のＤ−Ｄ線正面図である。FIG. 2 is a front view taken along the line DD of FIG. 1 showing a state in which the window curtain and the indoor curtain of the roll screen have reached the extended lower limit position. 本発明第２実施形態のロールスクリーンの窓側幕体及び室内側幕体が繰出し下限位置に達した状態を示す図７のＥ−Ｅ線断面図である。It is the EE sectional view taken on the line of FIG. 7 which shows the state which the window side curtain and the indoor side curtain of the roll screen of 2nd Embodiment of this invention reached the delivery minimum position. そのロールスクリーンの窓側幕体及び室内側幕体が巻取り上限位置に達した状態を示す図５に対応する断面図である。FIG. 6 is a cross-sectional view corresponding to FIG. 5 showing a state in which the window curtain and the indoor curtain of the roll screen have reached the winding upper limit position. そのロールスクリーンの窓側幕体及び室内側幕体が繰出し下限位置に達した状態を示す図５のＦ−Ｆ線断面図である。FIG. 6 is a cross-sectional view taken along line FF in FIG. 5 showing a state in which the window-side curtain body and the indoor-side curtain body of the roll screen have reached the extended lower limit position.

次に本発明を実施するための形態を図面に基づいて説明する。 Next, an embodiment for carrying out the present invention will be described with reference to the drawings.

＜第１の実施の形態＞
図１及び図４に示すように、ロールスクリーン１０は、壁１１に２つのブラケット１２，１２を介して取付けられかつ両端に一対の支持部材１３，１４が取付けられた単一の支持バー１５と、一対の支持部材１３，１４の上部かつ窓側に回転可能に取付けられた窓側巻取パイプ１６と、一対の支持部材１３，１４の下部かつ室内側に回転可能に取付けられた室内側巻取パイプ１７と、窓側巻取パイプ１６に上縁が固定された窓側幕体１８と、室内側巻取パイプ１７に上端が固定された室内側幕体１９とを備える。ブラケット１２は、図１に詳しく示すように、略Ｌ字状に形成された壁取付部１２ａと、この壁取付部１２ａの突出端下面に取付けられたバー保持部１２ｂとを有する。バー保持部１２ｂには室内側から窓側の方向に所定の間隔をあけて一対の被係止部１２ｃ,１２ｃが形成される。これらの被係止部１２ｃ，１２ｃは互いに近付く方向に図示しないばねにより付勢される。上記一対の被係止部１２ｃ，１２ｃは、この実施の形態では、互いに向き合う爪状にそれぞれ形成される。 <First Embodiment>
As shown in FIGS. 1 and 4, the roll screen 10 includes a single support bar 15 attached to a wall 11 via two brackets 12 and 12 and a pair of support members 13 and 14 attached to both ends. The window side winding pipe 16 rotatably attached to the upper side of the pair of support members 13 and 14 and the window side, and the indoor side winding pipe rotatably attached to the lower side and the indoor side of the pair of support members 13 and 14 17, a window curtain 18 whose upper edge is fixed to the window winding pipe 16, and an indoor curtain 19 whose upper end is fixed to the indoor winding pipe 17. As shown in detail in FIG. 1, the bracket 12 includes a wall attachment portion 12 a formed in a substantially L shape, and a bar holding portion 12 b attached to the lower surface of the protruding end of the wall attachment portion 12 a. A pair of locked portions 12c and 12c are formed in the bar holding portion 12b with a predetermined interval from the indoor side to the window side. These locked portions 12c and 12c are biased by a spring (not shown) in a direction approaching each other. In this embodiment, the pair of locked portions 12c and 12c are formed in a claw shape facing each other.

支持バー１５は、窓側巻取パイプ１６及び室内側巻取パイプ１７と平行に設けられ上記一対の被係止部１２ｃ，１２ｃに係止可能な一対の係止部１５ｃ，１５ｃが形成されたバー本体１５ａと、このバー本体１５ａの室内側の側縁から垂下されたカバー部１５ｂとを有する（図１及び図２）。上記一対の係止部１５ｃ，１５ｃは室内側から窓側の方向に所定の間隔をあけて形成される。また、上記一対の係止部１５ｃ，１５ｃは、この実施の形態では、互いに反対方向を向く凹溝状に形成される。更に、カバー部１５ｂの下端縁は、室内側巻取パイプ１７の上面より所定の距離だけ上方又は下方に位置するように構成されることが好ましい。具体的には、カバー部１５ｂの下端縁が室内側巻取パイプ１７の上面より所定の距離だけ上方に位置する場合とは、カバー部１５ｂの下端縁が室内側巻取パイプ１７の上面を含む水平面と窓側巻取パイプ１６の下面を含む水平面との間に位置する場合をいう。また、カバー部１５ｂの下端縁が室内側巻取パイプ１７の上面より所定の距離だけ下方に位置する場合とは、カバー部１５ｂの下端縁が室内側巻取パイプ１７の上面を含む水平面と室内側巻取パイプ１７の中心軸を含む水平面との間に位置する場合をいう。即ち、カバー部１５ｂの下端縁が窓側巻取パイプ１６の下面を含む水平面と室内側巻取パイプ１７の中心軸を含む水平面との間に位置することが好ましい。ここで、カバー部１５ｂの下端縁を上記位置に限定したのは、後述のヒンジ部材のカバー部１５ｂ内面への取付け箇所を確保し、後述の光漏れ防止部材がヒンジ部材を中心として室内側巻取パイプ１７表面又はこのパイプ１７に巻取られた室内側幕体１９上面に常に接触しながらスムーズに回動するようにし、更に光漏れ防止部材又はカバー部１５ｂによる窓側巻取パイプ１６及び室内側巻取パイプ１７間の隙間を通過する光を確実に遮蔽できるようにするためである。 The support bar 15 is provided in parallel with the window-side winding pipe 16 and the indoor-side winding pipe 17, and is formed with a pair of locking portions 15c, 15c that can be locked to the pair of locked portions 12c, 12c. It has the main body 15a and the cover part 15b suspended from the indoor side edge of this bar main body 15a (FIGS. 1 and 2). The pair of locking portions 15c, 15c are formed at a predetermined interval from the indoor side to the window side. Further, in the present embodiment, the pair of locking portions 15c and 15c are formed in a concave groove shape facing in opposite directions. Furthermore, it is preferable that the lower end edge of the cover portion 15 b is configured to be positioned above or below a predetermined distance from the upper surface of the indoor side winding pipe 17. Specifically, the case where the lower end edge of the cover portion 15 b is positioned above the upper surface of the indoor side winding pipe 17 by a predetermined distance means that the lower end edge of the cover portion 15 b includes the upper surface of the indoor side winding pipe 17. The case where it is located between a horizontal surface and the horizontal surface including the lower surface of the window side winding pipe 16 is said. Further, the case where the lower end edge of the cover portion 15b is positioned below the upper surface of the indoor side winding pipe 17 by a predetermined distance means that the lower surface edge of the cover portion 15b includes the horizontal plane including the upper surface of the indoor side winding pipe 17 and the chamber. The case where it is located between the horizontal plane containing the central axis of the inner side winding pipe 17 is said. That is, it is preferable that the lower end edge of the cover portion 15 b is located between a horizontal plane including the lower surface of the window side winding pipe 16 and a horizontal plane including the central axis of the indoor side winding pipe 17. The reason why the lower end edge of the cover portion 15b is limited to the above position is to secure a place where a hinge member, which will be described later, is attached to the inner surface of the cover portion 15b. The surface of the take-up pipe 17 or the upper surface of the indoor curtain body 19 wound around the pipe 17 is always rotated smoothly while being in contact, and the window-side take-up pipe 16 and the indoor side by the light leakage prevention member or cover portion 15b. This is because the light passing through the gap between the winding pipes 17 can be reliably shielded.

一方、窓側幕体１８は、この実施の形態では、光を透過可能な幕体、即ち透光可能な幕体である。この透光可能な窓側幕体１８は、透明及び半透明の双方を含むものであり、生地の組成や編成を粗にすることにより通風も可能に形成される。また、透光可能な窓側幕体１８は光透過率４０〜９５％、好ましくは６０〜９５％のメッシュ状生地により形成される。ここで、窓側幕体１８の光透過率を４０〜９５％の範囲内に限定したのは、４０％未満では所望の採光量が得られず、９５％を超えると窓側幕体１８の強度が低下してしまうからである。室内側幕体１９は、光を透過不能な幕体、即ち遮光可能な幕体であり、生地にアルミ等からなる金属箔を貼付けることや、繊維の密度を上げることにより作られる。また、窓側巻取パイプ１６の外周面には、窓側巻取パイプ１６の長手方向にこの窓側巻取パイプ１６の全長にわたって延びる窓側凹条１６ａが形成され、この窓側凹条１６ａには窓側固定部材１６ｂが挿入される。室内側巻取パイプ１７の外周面には、室内側巻取パイプ１７の長手方向にこの室内側巻取パイプ１７の全長にわたって延びる室内側凹条１７ａが形成され、この室内側凹条１７ａには室内側固定部材１７ｂが挿入される。更に、窓側幕体１８の上端は窓側固定部材１６ｂに縫製又は両面粘着テープ等を用いた貼付け（図示せず）により固定され、室内側幕体１９の上端は室内側固定部材１７ｂに縫製又は両面粘着テープ等を用いた貼付け（図示せず）により固定される。 On the other hand, the window curtain 18 is a curtain capable of transmitting light, that is, a curtain capable of transmitting light in this embodiment. The translucent window curtain 18 includes both transparent and semi-transparent, and is formed to allow ventilation by roughening the composition and knitting of the fabric. The translucent window curtain 18 is formed of a mesh-like cloth having a light transmittance of 40 to 95%, preferably 60 to 95%. Here, the light transmittance of the window-side curtain 18 is limited to the range of 40 to 95% because a desired light intensity cannot be obtained if it is less than 40%, and if it exceeds 95%, the strength of the window-side curtain 18 is increased. It is because it falls. The indoor curtain 19 is a curtain that cannot transmit light, that is, a curtain that can block light, and is produced by sticking a metal foil made of aluminum or the like to the fabric or increasing the density of the fibers. Further, a window side recess 16a extending in the longitudinal direction of the window side take-up pipe 16 over the entire length of the window side take-up pipe 16 is formed on the outer peripheral surface of the window side take-up pipe 16, and a window side fixing member is provided on the window side recess 16a. 16b is inserted. On the outer peripheral surface of the indoor winding pipe 17, an indoor concave groove 17a extending in the longitudinal direction of the indoor winding pipe 17 over the entire length of the indoor winding pipe 17 is formed. The indoor side fixing member 17b is inserted. Further, the upper end of the window curtain 18 is fixed to the window fixing member 16b by sewing or pasting (not shown) using a double-sided adhesive tape or the like, and the upper end of the indoor curtain 19 is sewn or double-sided to the indoor fixing member 17b. It is fixed by sticking (not shown) using an adhesive tape or the like.

図３に示すように、室内側凹条１７ａの一側縁には、この室内側凹条１７ａ内に突出する室内側突条１７ｃが突設され、室内側凹条１７ａの他側縁には、この室内側凹条１７ａの開口部の一部を覆う室内側庇部１７ｄが突設される。また、室内側固定部材１７ｂは、幅が開口部の幅より広くかつ室内側凹条１７ａの幅より狭いフラットバー状の室内側固定本体１７ｅと、この室内側固定本体１７ｅの一側縁に設けられ室内側突条１７ｃに嵌入可能な略Ｕ字状の室内側嵌入部１７ｆとを有する。この室内側固定部材１７ｂを室内側凹条１７ａに挿入するときは、室内側固定本体１７ｅの下面に室内側幕体１９の上端を固定した後に、室内側固定本体１７ｅの両側縁うち室内側嵌入部１７ｆが設けられていない他側縁を室内側庇部１７ｄの下側に潜り込ませるように室内側凹条１７ａに挿入した後、室内側嵌入部１７ｆを室内側突条１７ｃに嵌入することにより行う。また、室内側固定部材１７ｂを室内側凹条１７ａから取外すときは、室内側嵌入部１７ｆのうち室内側凹条１７ａから突出している部分を室内側庇部１７ｄに向って押すことにより、室内側嵌入部１７ｆが室内側突条１７ｃから離脱させ、この状態で室内側嵌入部１７ｆを引上げることにより、室内側固定部材１７ｂを室内側凹条１７ａから取外すことができる。このように室内側固定部材１７ｂを室内側凹条１７ａの一端から挿入する必要がないので、室内側巻取パイプ１７を取外すことなく、室内側幕体１９の室内側巻取パイプ１７への取付け作業及び取外し作業を行うことができる。一方、窓側凹条１６ａの一側縁には、この窓側凹条１６ａ内に突出する窓側突条（図示せず）が突設され、窓側凹条１６ａの他側縁には、この窓側凹条１６ａの開口部の一部を覆う窓側庇部（図示せず）が突設される。また、窓側固定部材１６ｂは、幅が開口部の幅より広くかつ窓側凹条１６ａの幅より狭いフラットバー状の窓側固定本体（図示せず）と、この窓側固定本体の一側縁に設けられ窓側突条に嵌入可能な略Ｕ字状の窓側嵌入部（図示せず）とを有する。この窓側固定部材１６ｂを窓側凹条１６ａに挿入するときは、上記室内側固定部材１７ｂを室内側凹条１７ａに挿入するときと同様の手順で行う。また、窓側固定部材１６ｂを窓側凹条１６ａから取外すときは、上記室内側固定部材１７ｂを室内側凹条１７ａから取外すときと同様の手順で行う。 As shown in FIG. 3, an indoor ridge 17c projecting into the indoor concave ridge 17a is provided on one side edge of the indoor concave ridge 17a, and on the other side edge of the indoor concave ridge 17a. The indoor side flange portion 17d that covers a part of the opening of the indoor concave groove 17a is provided to project. The indoor side fixing member 17b is provided at a flat bar-like indoor side fixing body 17e having a width wider than the width of the opening and narrower than the width of the indoor side recess 17a, and one side edge of the indoor side fixing body 17e. And a substantially U-shaped indoor-side fitting portion 17f that can be fitted into the indoor-side protrusion 17c. When inserting the indoor-side fixing member 17b into the indoor-side recessed strip 17a, after fixing the upper end of the indoor curtain body 19 to the lower surface of the indoor-side fixing main body 17e, By inserting the other side edge not provided with the portion 17f into the indoor concave groove 17a so as to be embedded under the indoor flange 17d, and then inserting the indoor insertion portion 17f into the indoor protrusion 17c. Do. Further, when the indoor side fixing member 17b is removed from the indoor side concave portion 17a, the portion protruding from the indoor side concave portion 17a of the indoor side insertion portion 17f is pushed toward the indoor side flange portion 17d, so that the indoor side The indoor portion fixing member 17b can be removed from the indoor concave portion 17a by causing the insertion portion 17f to be detached from the indoor side protrusion 17c and pulling up the indoor side insertion portion 17f in this state. Thus, since it is not necessary to insert the indoor side fixing member 17b from one end of the indoor side concave strip 17a, the indoor curtain body 19 can be attached to the indoor side winding pipe 17 without removing the indoor side winding pipe 17. Work and removal work can be performed. On the other hand, on one side edge of the window side groove 16a, a window side protrusion (not shown) protruding into the window side groove 16a is projected, and on the other side edge of the window side groove 16a, this window side groove is formed. A window-side collar (not shown) that covers a part of the opening of 16a is projected. The window-side fixing member 16b is provided on a flat bar-like window-side fixing body (not shown) whose width is wider than the width of the opening and narrower than the width of the window-side recess 16a, and one side edge of the window-side fixing body. A substantially U-shaped window-side fitting portion (not shown) that can be fitted into the window-side protrusion. When this window side fixing member 16b is inserted into the window side recess 16a, the same procedure as when the indoor side fixing member 17b is inserted into the room side recess 17a is performed. Moreover, when removing the window side fixing member 16b from the window side recessed strip 16a, the same procedure as when removing the indoor side fixing member 17b from the indoor side recessed strip 17a is performed.

一方、カバー部１５ｂの内面には、カバー部１５ｂの幅と略同一の幅を有する光漏れ防止部材２０の基端縁が回動可能に取付けられる（図１〜図３）。この実施の形態では、カバー部１５ｂの内面に、光漏れ防止部材２０の基端縁がヒンジ部材２１を介して回動可能に取付けられる。このヒンジ部材２１は、カバー部１５ｂの内面に水平方向に延びて形成されたヒンジ用被係合部２１ａと、光漏れ防止部材２０の基端縁に形成されヒンジ用被係合部２１ａに相対的に回動可能に係合するヒンジ用係合部２１ｂとを有する。ヒンジ用被係合部２１ａは横断面略伏せＣ字状に形成され、ヒンジ用係合部２１ｂは横断面略Ｔ字状に形成される。そして、ヒンジ用係合部２１ｂのＴ字の頂部がヒンジ用被係合部２１ａのＣ字の内部に収容される。この状態で光漏れ防止部材２０がヒンジ部材２１を中心に回動することにより、光漏れ防止部材２０の先端縁近傍が室内側巻取パイプ１７の上面又は室内側巻取パイプ１７に巻取られた室内側幕体１９の上面にその自重により常に接触するように構成される。 On the other hand, on the inner surface of the cover portion 15b, a base edge of the light leakage prevention member 20 having a width substantially the same as the width of the cover portion 15b is rotatably attached (FIGS. 1 to 3). In this embodiment, the base end edge of the light leakage prevention member 20 is rotatably attached to the inner surface of the cover portion 15b via the hinge member 21. The hinge member 21 is formed on the inner surface of the cover portion 15b so as to extend in the horizontal direction. The hinge member 21 is formed on the base end edge of the light leakage prevention member 20 and is opposed to the hinge engaged portion 21a. And a hinge engaging portion 21b that is rotatably engaged. The hinge engaged portion 21a is formed in a substantially C-shaped cross section, and the hinge engaging portion 21b is formed in a substantially T-shaped cross section. The top of the T-shape of the hinge engaging portion 21b is accommodated inside the C-shape of the hinge engaged portion 21a. In this state, the light leakage prevention member 20 rotates around the hinge member 21, so that the vicinity of the leading edge of the light leakage prevention member 20 is wound on the upper surface of the indoor winding pipe 17 or the indoor winding pipe 17. It is configured to always contact the upper surface of the indoor curtain body 19 by its own weight.

一方、窓側巻取パイプ１６及び室内側巻取パイプ１７は互いに平行に配置され、窓側巻取パイプ１６は室内側巻取パイプ１７に対して窓側にオフセットして設けられる（図１及び図２）。また、窓側巻取パイプ１６及び室内側巻取パイプ１７には、窓側巻取ばね２２及び室内側巻取ばね２３がそれぞれ内蔵され、窓側巻取パイプ１６及び室内側巻取パイプ１７は単一の操作部材２４により正転又は逆転するように構成される（図４）。上記窓側巻取ばね２２及び室内側巻取ばね２３には窓側幕体１８及び室内側幕体１９を窓側巻取パイプ１６及び室内側巻取パイプ１７に巻取る方向に窓側巻取パイプ１６及び室内側巻取パイプ１７を回転させるための付勢力がそれぞれ蓄えられる。また、単一の操作部材２４は、この実施の形態では、単一のリング状の操作チェーンであり、この操作チェーン２４は、窓側幕体１８及び室内側幕体１９をそれぞれ繰出し又は巻取るために操作される。 On the other hand, the window-side take-up pipe 16 and the indoor-side take-up pipe 17 are arranged in parallel to each other, and the window-side take-up pipe 16 is provided offset to the window side with respect to the indoor-side take-up pipe 17 (FIGS. 1 and 2). . Further, the window-side winding pipe 16 and the indoor-side winding pipe 17 each have a built-in window-side winding spring 22 and an indoor-side winding spring 23, and the window-side winding pipe 16 and the indoor-side winding pipe 17 are a single unit. The operation member 24 is configured to rotate forward or reverse (FIG. 4). The window-side winding spring 22 and the indoor-side winding spring 23 have the window-side winding body 16 and the room-side winding body 19 wound around the window-side winding pipe 16 and the indoor-side winding pipe 17, respectively. The urging force for rotating the inner winding pipe 17 is stored. Further, in this embodiment, the single operation member 24 is a single ring-shaped operation chain, and this operation chain 24 is for feeding or winding the window-side curtain body 18 and the indoor-side curtain body 19 respectively. To be operated.

窓側幕体１８及び室内側幕体１９の下端には、窓側ウエイトバー２６及び室内側ウエイトバー２７がそれぞれ取付けられる。窓側ウエイトバー２６は、窓側幕体１８が窓側巻取パイプ１６に巻取られていくと、バー本体１５ａの窓側の側縁に当接し、室内側ウエイトバー２７は、室内側幕体１９が室内側巻取パイプ１７に巻取られていくと、カバー部１５ｂの下端縁に当接するように構成される。また、バー本体１５ａの窓側の側縁には、窓側ウエイトバー２６が当接可能なゴム製又は軟質プラスチック製の窓側クッションバー２８が取付けられ（図１及び図２）、カバー部１５ｂの下端縁には、室内側ウエイトバー２７が当接可能なゴム製又は軟質プラスチック製の室内側クッションバー２９が取付けられる。窓側クッションバー２８は、バー本体１５ａの窓側の側縁に沿うように延びて設けられ、バー本体１５ａの窓側の側縁内面に取付けられる窓側取付部２８ａと、この窓側取付部２８ａと一体的に設けられバー本体１５ａの窓側の側縁下面に当接する弾性変形可能な窓側筒状部２８ｂとを有する。この窓側クッションバー２８の窓側筒状部２８ｂには、窓側ウエイトバー２６が当接可能に構成される（図２）。更に、室内側クッションバー２９はカバー部１５ｂの下端縁に沿うように延びて設けられ、カバー部１５ｂの下端縁内面に取付けられる室内側取付部２９ａと、この室内側取付部２９ａと一体的に設けられカバー部１５ｂの下端縁下面に当接する弾性変形可能な室内側筒状部２９ｂとを有する。この室内側クッションバー２９の室内側筒状部２９ｂには、室内側ウエイトバー２７が当接可能に構成される。なお、バー本体１５ａの窓側の側縁と、窓側幕体１８の殆ど全てが窓側巻取パイプ１６に巻取られたときの窓側巻取パイプ１６の外周面との隙間は、窓側ウエイトバー２６の外径より小さく形成される。また、カバー部１５ｂの下端縁と、室内側幕体１９の殆ど全てが室内側巻取パイプ１７に巻取られたときの室内側巻取パイプ１７の外周面との隙間は、室内側ウエイトバー２７の外径より小さく形成される。 A window-side weight bar 26 and an indoor-side weight bar 27 are attached to the lower ends of the window-side curtain body 18 and the indoor-side curtain body 19, respectively. When the window curtain 18 is wound around the window winding pipe 16, the window weight bar 26 abuts against the window side edge of the bar main body 15a, and the indoor weight bar 27 includes the indoor curtain 19 in the chamber. When wound on the inner winding pipe 17, it is configured to come into contact with the lower end edge of the cover portion 15b. Further, a rubber or soft plastic window side cushion bar 28 with which the window side weight bar 26 can abut is attached to the window side edge of the bar body 15a (FIGS. 1 and 2), and the lower end edge of the cover portion 15b. A rubber cushion or soft plastic indoor cushion bar 29 with which the indoor weight bar 27 can come into contact is attached. The window-side cushion bar 28 is provided so as to extend along the window-side side edge of the bar main body 15a, and is attached to the window-side attachment inner surface 28a attached to the window-side side edge of the bar main body 15a. And an elastically deformable window-side cylindrical portion 28b that is provided and abuts against the lower surface of the side edge of the bar body 15a on the window side. The window side weight bar 26 is configured to be able to contact the window side cylindrical portion 28b of the window side cushion bar 28 (FIG. 2). Furthermore, the indoor side cushion bar 29 is provided so as to extend along the lower end edge of the cover portion 15b, and an indoor side attachment portion 29a attached to the inner surface of the lower end edge of the cover portion 15b, and the indoor side attachment portion 29a integrally. And an elastically deformable indoor cylindrical portion 29b that is provided and contacts the lower surface of the lower end edge of the cover portion 15b. The indoor side weight bar 27 is configured to come into contact with the indoor side cylindrical portion 29b of the indoor side cushion bar 29. Note that a gap between the window side side edge of the bar main body 15a and the outer peripheral surface of the window side winding pipe 16 when almost all of the window side curtain 18 is wound around the window side winding pipe 16 It is formed smaller than the outer diameter. The clearance between the lower end edge of the cover portion 15b and the outer peripheral surface of the indoor winding pipe 17 when almost all of the indoor curtain 19 is wound on the indoor winding pipe 17 is the indoor weight bar. 27 is formed smaller than the outer diameter.

一方、ロールスクリーン１０は、操作チェーン２４と窓側巻取パイプ１６との間に設けられた窓側回転伝達切換装置３１と、操作チェーン２４と室内側巻取パイプ１７との間に設けられた室内側回転伝達切換装置３２と、操作チェーン２４が巻き掛けられる単一のプーリ（図示せず）と、プーリと窓側回転伝達切換装置３１及び室内側回転伝達切換装置３２との間に設けられた歯車列（図示せず）とを更に備える（図４）。上記歯車列により、操作チェーン２４の操作力がプーリから窓側回転伝達切換装置３１及び室内側回転伝達切換装置３２に伝達されるようになっている。また、上記歯車列は歯車ケース３３に回転可能にそれぞれ収容され、この歯車ケース３３にビス（図示せず）により取付けられたプーリカバー３４に上記プーリが収容される。そして歯車ケース３３及びプーリカバー３４により一方の支持部材１３が構成される。 On the other hand, the roll screen 10 includes a window side rotation transmission switching device 31 provided between the operation chain 24 and the window side winding pipe 16, and an indoor side provided between the operation chain 24 and the indoor side winding pipe 17. A gear train provided between the rotation transmission switching device 32, a single pulley (not shown) around which the operation chain 24 is wound, and the pulley and the window side rotation transmission switching device 31 and the indoor side rotation transmission switching device 32. (Not shown). With the gear train, the operating force of the operation chain 24 is transmitted from the pulley to the window side rotation transmission switching device 31 and the indoor side rotation transmission switching device 32. The gear trains are rotatably accommodated in a gear case 33, and the pulleys are accommodated in a pulley cover 34 attached to the gear case 33 with screws (not shown). The gear case 33 and the pulley cover 34 constitute one support member 13.

窓側回転伝達切換装置３１は、操作チェーン２４の室内側の操作部を引下げ操作したときにこの操作力を窓側巻取パイプ１６に伝達しかつ操作チェーン２４の窓側の操作部を引下げ操作したときにこの操作力を窓側巻取パイプ１６に伝達しないクラッチ機能と、操作チェーン２４の室内側の操作部の引下げ操作を停止することにより窓側巻取パイプ１６をその位置に一時的に固定するロック機能と、操作チェーン２４の室内側の操作部を僅かに引下げ操作することにより上記一時的な固定を解除するロック解除機能とを有する（図４）。また、室内側回転伝達切換装置３２は、操作チェーン２４の窓側の操作部を引下げ操作したときにこの操作力を室内側巻取パイプ１７に伝達しかつ操作チェーン２４の室内側の操作部を引下げ操作したときにこの操作力を室内側巻取パイプ１７に伝達しないクラッチ機能と、操作チェーン２４の窓側の操作部の引下げ操作を停止することにより室内側巻取パイプ１７をその位置に一時的に固定するロック機能と、操作チェーン２４の窓側の操作部を引下げ操作することにより上記一時的な固定を解除するロック解除機能とを有する。 The window-side rotation transmission switching device 31 transmits this operation force to the window-side winding pipe 16 when the operation unit on the indoor side of the operation chain 24 is pulled down, and when the window-side operation unit of the operation chain 24 is pulled down. A clutch function that does not transmit this operating force to the window-side winding pipe 16, and a lock function that temporarily fixes the window-side winding pipe 16 at that position by stopping the pulling-down operation of the operation portion on the indoor side of the operation chain 24; Further, it has a lock releasing function for releasing the temporary fixing by slightly lowering the operation part on the indoor side of the operation chain 24 (FIG. 4). The indoor side rotation transmission switching device 32 transmits this operating force to the indoor winding pipe 17 when the operating part on the window side of the operating chain 24 is pulled down, and pulls down the operating part on the indoor side of the operating chain 24. A clutch function that does not transmit this operating force to the indoor winding pipe 17 when operated, and the pulling-down operation of the operating part on the window side of the operating chain 24 are stopped, so that the indoor winding pipe 17 is temporarily moved to that position. A lock function for fixing and a lock release function for releasing the temporary fixing by pulling down the operation part on the window side of the operation chain 24 are provided.

このように構成されたロールスクリーン１０の動作を説明する。図１〜図４に示すように、操作チェーン２４の室内側の操作部を引下げ操作すると、この操作力は、プーリ及び歯車列を介して窓側回転伝達切換装置３１に伝達される。そして、窓側回転伝達切換装置３１において、歯車列の回転力は窓側筒状部２８ｂを介して窓側巻取パイプ１６に伝達され、窓側幕体１８が窓側巻取パイプ１６から繰出される。このように操作チェーン２４の室内側の操作部を引下げ操作すると、この操作力は室内側回転伝達切換装置３２に伝達されるけれども、室内側回転伝達切換装置３２のクラッチ機能により、室内側巻取パイプ１７には伝達されない。そして、窓側幕体１８が繰出し下限位置に達して、操作チェーン２４の引下げ操作を停止すると、窓側回転伝達切換装置３１のロック機能により窓側幕体１８がその位置で一時的に固定される。一方、操作チェーン２４の窓側の操作部を引下げ操作すると、この操作力は、プーリ及び歯車列を介して室内側回転伝達切換装置３２に伝達される。そして、室内側回転伝達切換装置３２において、歯車列の回転力は室内側筒状部２９ｂを介して室内側巻取パイプ１７に伝達され、室内側幕体１９が室内側巻取パイプ１７から繰出される。このように操作チェーン２４の室内側の操作部を引下げ操作すると、この操作力は窓側回転伝達切換装置３１に伝達されるけれども、窓側回転伝達切換装置３１のクラッチ機能により、窓側巻取パイプ１６には伝達されない。そして、室内側幕体１９が繰出し下限位置に達して、操作チェーン２４の引下げ操作を停止すると、室内側回転伝達切換装置３２のロック機能により遮光幕体１９がその位置で一時的に固定される。このように窓側幕体１８及び室内側幕体１９がそれぞれ繰出し下限位置に達すると、室外の直射光が窓側幕体１８を透過し窓側巻取パイプ１６及び室内側巻取パイプ１７間を通って室内に進入しようとするけれども、光漏れ防止部材２０の先端近傍が室内側巻取パイプ１７の上面に接触しているため、上記直射光は光漏れ防止部材２０及びカバー部１５ｂにより遮られて室内に進入しない。 The operation of the roll screen 10 configured in this way will be described. As shown in FIGS. 1 to 4, when the operation unit on the indoor side of the operation chain 24 is pulled down, this operation force is transmitted to the window side rotation transmission switching device 31 via the pulley and the gear train. In the window side rotation transmission switching device 31, the rotational force of the gear train is transmitted to the window side winding pipe 16 via the window side cylindrical portion 28 b, and the window side curtain 18 is fed out from the window side winding pipe 16. When the operation part on the indoor side of the operation chain 24 is pulled down in this way, this operating force is transmitted to the indoor side rotation transmission switching device 32. It is not transmitted to the pipe 17. When the window-side curtain 18 reaches the extended lower limit position and stops the operation of lowering the operation chain 24, the window-side curtain 18 is temporarily fixed at that position by the lock function of the window-side rotation transmission switching device 31. On the other hand, when the operation part on the window side of the operation chain 24 is pulled down, this operation force is transmitted to the indoor side rotation transmission switching device 32 via the pulley and the gear train. In the indoor side rotation transmission switching device 32, the rotational force of the gear train is transmitted to the indoor side take-up pipe 17 via the indoor side cylindrical portion 29b, and the indoor side curtain body 19 is fed out from the indoor side take-up pipe 17. Is done. When the operation portion on the indoor side of the operation chain 24 is pulled down in this way, this operating force is transmitted to the window-side rotation transmission switching device 31, but the window-side rotation transmission switching device 31 has a clutch function to the window-side winding pipe 16. Is not transmitted. Then, when the indoor curtain 19 reaches the feeding lower limit position and stops the pulling operation of the operation chain 24, the light shielding curtain 19 is temporarily fixed at the position by the lock function of the indoor rotation transmission switching device 32. . Thus, when the window-side curtain body 18 and the indoor-side curtain body 19 reach the extended lower limit position, the outdoor direct light passes through the window-side curtain body 18 and passes between the window-side winding pipe 16 and the indoor-side winding pipe 17. Although it tries to enter the room, since the vicinity of the tip of the light leakage prevention member 20 is in contact with the upper surface of the indoor winding pipe 17, the direct light is blocked by the light leakage prevention member 20 and the cover portion 15b. Do not enter.

次に、操作チェーン２４の室内側の操作部を僅かに引下げ操作した後に操作チェーン２４から手を放すと、窓側回転伝達切換装置３１のロック機能がロック解除機能により解除されて、窓側巻取ばね２２に蓄えられた付勢力により窓側巻取パイプ１６を窓側幕体１８の巻取り方向に回転させる。そして、窓側幕体１８は窓側巻取ばね２２の付勢力により窓側巻取パイプ１６に巻取られ続け、窓側ウエイトバー２６がバー本体１５ａの窓側の側縁に窓側クッションバー２８の窓側筒状部２８ｂを介し当接して停止する。これにより、窓側クッションバー２８の窓側筒状部２８ｂが弾性変形して上記当接時の衝撃を吸収できるとともに、その衝撃音を吸収して低減できる。ここで、窓側幕体１８の巻取り時に操作チェーン２４は停止した状態に保たれる。一方、操作チェーン２４の窓側の操作部を僅かに引下げ操作した後に操作チェーン２４から手を放すと、室内側回転伝達切換装置３２のロック機能がロック解除機能により解除されて、室内側巻取ばね２３に蓄えられた付勢力により室内側巻取パイプ１７を室内側幕体１９の巻取り方向に回転させる。そして、室内側幕体１９が室内側巻取ばね２３の付勢力により室内側巻取パイプ１７に巻取られて室内側ウエイトバー２７がカバー部１５ｂの下端縁に室内側クッションバー２９の室内側筒状部２９ｂを介して当接する。これにより、室内側クッションバー２９の室内側筒状部２９ｂが弾性変形して上記当接時の衝撃を吸収できるとともに、その衝撃音を吸収して低減できる。ここで、室内側幕体１９の巻取り時に操作チェーン２４は停止した状態に保たれる。このように窓側幕体１８及び室内側幕体１９がそれぞれ巻取り上限位置に達すると、室外の直射光が窓側巻取パイプ１６及び室内側巻取パイプ１７間を通って室内に進入しようとするけれども、光漏れ防止部材２０の先端近傍が室内側巻取パイプ１７に巻取られた室内側幕体１９の上面に接触しているため、上記直射光は光漏れ防止部材２０及びカバー部１５ｂにより遮られて室内に進入しない。 Next, when the operation part on the indoor side of the operation chain 24 is slightly lowered and then released from the operation chain 24, the lock function of the window-side rotation transmission switching device 31 is released by the lock release function, and the window-side winding spring is released. The window-side winding pipe 16 is rotated in the winding direction of the window-side curtain body 18 by the urging force stored in 22. The window curtain 18 is continuously wound around the window winding pipe 16 by the urging force of the window winding spring 22, and the window weight bar 26 is located on the side edge of the bar body 15a on the window side cylindrical portion of the window cushion bar 28. It abuts via 28b and stops. As a result, the window-side cylindrical portion 28b of the window-side cushion bar 28 can be elastically deformed to absorb the impact at the time of contact, and the impact sound can be absorbed and reduced. Here, the operation chain 24 is kept stopped when the window curtain 18 is wound. On the other hand, when the operation part on the window side of the operation chain 24 is slightly lowered and then released from the operation chain 24, the lock function of the indoor rotation transmission switching device 32 is released by the lock release function, and the indoor winding spring is released. The indoor winding pipe 17 is rotated in the winding direction of the indoor curtain body 19 by the urging force stored in 23. The indoor curtain 19 is wound around the indoor winding pipe 17 by the urging force of the indoor winding spring 23, and the indoor weight bar 27 is positioned on the indoor side of the indoor cushion bar 29 at the lower end edge of the cover portion 15b. It contacts via the cylindrical part 29b. Thereby, the indoor side cylindrical portion 29b of the indoor side cushion bar 29 can be elastically deformed to absorb the impact at the time of contact, and the impact sound can be absorbed and reduced. Here, the operation chain 24 is kept stopped when the indoor curtain 19 is wound. When the window-side curtain body 18 and the indoor-side curtain body 19 thus reach the winding upper limit position, the outdoor direct light attempts to enter the room through the window-side winding pipe 16 and the indoor-side winding pipe 17. However, since the vicinity of the front end of the light leakage preventing member 20 is in contact with the upper surface of the indoor curtain body 19 wound around the indoor winding pipe 17, the direct light is transmitted by the light leakage preventing member 20 and the cover portion 15b. It is blocked and does not enter the room.

また、室内側幕体１９の下端縁が繰出し下限位置に達し、かつ窓側幕体１８の下端縁が巻取り上限位置に達するか、中間位置にあるか、或いは繰出し下限位置に達したとき、透光可能な窓側幕体１８の下方を通過した光、或いは透光可能な窓側幕体１８を透過した光が窓側巻取パイプ１６及び室内側巻取パイプ１７間の隙間を通って室内に進入しようとしても、この光は光漏れ防止部材２０及びカバー部１５ｂにより遮られるとともに、室内側巻取パイプ１７の下方から進入しようとする光は遮光可能な室内側幕体１９により遮られる。この結果、窓側幕体１８及び室内側幕体１９が巻取り上限位置又は繰出し下限位置のいずれに達しても、或いは両位置の中間位置にあっても、窓側巻取パイプ１６及び室内側巻取パイプ１７間の隙間からの光の進入を光漏れ防止部材２０及びカバー部１５ｎにより遮ることができる。 Further, when the lower edge of the indoor curtain 19 reaches the feeding lower limit position and the lower edge of the window curtain 18 reaches the winding upper limit position, the intermediate position, or the feeding lower limit position, Light that has passed below the lightable window side curtain 18 or light that has passed through the lightable window side curtain 18 enters the room through the gap between the window side winding pipe 16 and the indoor side winding pipe 17. However, the light is blocked by the light leakage prevention member 20 and the cover portion 15b, and the light entering from the lower side of the indoor winding pipe 17 is blocked by the indoor curtain body 19 that can block light. As a result, even if the window-side curtain body 18 and the indoor-side curtain body 19 reach either the winding upper limit position, the feeding lower limit position, or the intermediate position between the two positions, the window-side winding pipe 16 and the indoor-side winding coil The entrance of light from the gap between the pipes 17 can be blocked by the light leakage prevention member 20 and the cover portion 15n.

一方、窓側幕体１８が窓側巻取パイプ１６に巻取られていくと、窓側幕体１８の下端縁がバー本体１５ａの窓側の側縁近傍まで上昇し、窓側ウエイトバー２６が窓側クッションバー２８の窓側筒状体２８ｂに当接して、窓側幕体１８が巻取り上限位置に達する。また、室内側幕体１９が室内側巻取りパイプ１７に巻取られていくと、室内側幕体１９の下端縁がカバー部１５ｂの下端縁近傍まで上昇し、室内側ウエイトバー２７が室内側クッションバー２９の室内側筒状体２９ｂに当接して、室内側幕体１９が巻取り上限位置に達する。この結果、窓側幕体１８及び室内側幕体１９がそれぞれ巻取り上限位置に達したときに、窓側幕体１８又は室内側幕体１９のいずれか一方又は双方が中途半端に垂れ下がった状態にならないので、窓側幕体１８及び室内側幕体１９の巻取り上限位置における見栄えを損なわず、かつ窓の最大開口面積を狭めずに済む。 On the other hand, when the window curtain 18 is wound around the window winding pipe 16, the lower edge of the window curtain 18 rises to the vicinity of the window side edge of the bar body 15a, and the window weight bar 26 is moved to the window cushion bar 28. The window-side curtain 18 reaches the upper winding position. When the indoor curtain 19 is wound around the indoor winding pipe 17, the lower edge of the indoor curtain 19 rises to the vicinity of the lower edge of the cover portion 15b, and the indoor weight bar 27 moves to the indoor side. The indoor curtain body 19 comes into contact with the indoor cylindrical body 29b of the cushion bar 29 and reaches the winding upper limit position. As a result, when the window curtain 18 and the indoor curtain 19 reach the winding upper limit position, either one or both of the window curtain 18 and the indoor curtain 19 do not hang down halfway. Therefore, the appearance of the window side curtain 18 and the indoor side curtain 19 at the winding upper limit position is not impaired, and the maximum opening area of the window is not reduced.

＜第２の実施の形態＞
図５〜図７は本発明の第２の実施の形態を示す。図５〜図７において図１、図２及び図４と同一の符号は同一の部品を示す。この実施の形態では、ヒンジ部材６１は、横断面略伏せＣ字状に形成されたヒンジ用被係合部６１ａと、横断面略円形状に形成されたヒンジ用係合部６１ｂとを有する。そして、円形状のヒンジ用係合部６１ｂがＣ字状のヒンジ用被係合部６１ａに回動可能に収容される。また、操作部材６４が、窓側幕体１８の下端中央に垂下された窓側プル操作具６４ａと、室内側幕体１９の下端中央に垂下された室内側プル操作具６４ｂとを有する。窓側プル操作具６４ａは、窓側ウエイトバー２６の長手方向中央に嵌着され、窓側プル操作具６４ａの操作により窓側巻取パイプ５６を正転又は逆転させるように構成される。更に、室内側プル操作具６４ｂは、室内側ウエイトバー２７の長手方向中央に嵌着され、室内側プル操作具６４ｂの操作により室内側巻取パイプ５７を正転又は逆転させるように構成される。このため、一方の支持部材５３、窓側巻取パイプ５６及び室内側巻取パイプ５７の内部構造が、第１の実施の形態の支持部材、窓側巻取パイプ及び室内側巻取パイプの内部構造と異なる。なお、ロールスクリーン５０が天井５１に取付けられるため、第１の実施の形態の壁取付部が不要になり、ブラケット５２は被係止部１２ｃが設けられたバー保持部１２ｂのみからなる。上記以外は第１の実施の形態と同一に構成される。 <Second Embodiment>
5 to 7 show a second embodiment of the present invention. 5-7, the same code | symbol as FIG.1, FIG.2 and FIG.4 shows the same component. In this embodiment, the hinge member 61 includes a hinge engaged portion 61a formed in a substantially C-shaped cross section and a hinge engaging portion 61b formed in a substantially circular cross section. The circular hinge engaging portion 61b is rotatably accommodated in the C-shaped hinge engaged portion 61a. The operation member 64 includes a window-side pull operation tool 64 a that is suspended at the center of the lower end of the window-side curtain body 18, and an indoor-side pull operation tool 64 b that is suspended at the center of the lower end of the indoor-side curtain body 19. The window-side pull operation tool 64a is fitted in the center in the longitudinal direction of the window-side weight bar 26, and is configured to rotate the window-side winding pipe 56 forward or backward by operation of the window-side pull operation tool 64a. Further, the indoor pull operation tool 64b is fitted in the center of the indoor weight bar 27 in the longitudinal direction, and is configured to rotate the indoor take-up pipe 57 forward or reverse by operating the indoor pull operation tool 64b. . For this reason, the internal structure of one support member 53, the window side winding pipe 56, and the indoor side winding pipe 57 is the same as the internal structure of the supporting member, the window side winding pipe, and the indoor side winding pipe of the first embodiment. Different. In addition, since the roll screen 50 is attached to the ceiling 51, the wall attachment part of 1st Embodiment becomes unnecessary, and the bracket 52 consists only of the bar holding part 12b in which the to-be-latched part 12c was provided. The configuration other than the above is the same as that of the first embodiment.

このように構成されたロールスクリーン５０では、円形状のヒンジ用係合部６１ｂをＣ字状のヒンジ用被係合部６１ａに回動可能に収容したので、光漏れ防止部材２０がヒンジ部材６１を中心にスムーズに回動する。また、窓側幕体１８を窓側プル操作具６４ａを操作して昇降させ、室内側幕体１９を室内側プル操作具６４ｂを操作して昇降させるので、窓側幕体１８及び室内側幕体１９を昇降させるときの操作方法が分かり易い。上記以外の動作は、第１の実施の形態の動作と略同様であるので、繰返しの説明を省略する。 In the roll screen 50 configured as described above, since the circular hinge engaging portion 61b is rotatably accommodated in the C-shaped hinge engaged portion 61a, the light leakage prevention member 20 is the hinge member 61. Rotate smoothly around the center. Further, the window curtain 18 is moved up and down by operating the window pull operation tool 64a, and the indoor curtain body 19 is moved up and down by operating the indoor pull operation tool 64b, so that the window curtain 18 and the indoor curtain 19 are moved. Easy to understand how to move up and down. Since the operation other than the above is substantially the same as the operation of the first embodiment, repeated description will be omitted.

なお、上記第１の実施の形態では、窓側巻取パイプ及び室内側巻取パイプを、一対の支持部材、支持バー及びブラケットを介して壁に回転可能に取付け、上記第２の実施の形態では、窓側巻取パイプ及び室内側巻取パイプを、一対の支持部材、支持バー及びブラケットを介して天井に回転可能に取付けたが、窓側巻取パイプ及び室内側巻取パイプを、一対の支持部材、支持バー及びブラケットを介して窓枠に回転可能に取付けてもよい。また、上記第１及び第２の実施の形態では、窓側幕体を透光可能な幕体とし、室内側幕体を遮光可能な幕体としたが、窓側幕体及び室内側幕体の双方を遮光可能な幕体としてもよい。この場合、室内側幕体の下端縁が繰出し下限位置に達し、かつ窓側幕体の下端縁が巻取り上限位置に達したとき、透光可能な窓側幕体の下方を通過した光が窓側巻取パイプ及び室内側巻取パイプ間の隙間を通って室内に進入しようとしても、この光は光漏れ防止部材及びカバー部により遮られるとともに、室内側巻取パイプの下方から進入しようとする光は遮光可能な室内側幕体により遮られる。更に、上記第１及び第２の実施の形態では、光漏れ防止部材の先端縁近傍が室内側巻取パイプの上面又は室内側巻取パイプに巻取られた室内側幕体の上面にその自重により常に接触するように構成したが、ヒンジ部材に捩りコイルばねや板ばね等を取付けて、光漏れ防止部材をある程度のばね弾性力により室内側巻取パイプの表面又はこの巻取パイプに巻取られた室内側幕体の表面に圧接させてもよい。これにより室内側巻取パイプに巻取られた室内側幕体に多少のシワが発生しても、光漏れ防止部材がこのシワを押し潰して室内側巻取パイプに巻取られた室内側幕体に密着するので、光漏れ防止部材と室内側幕体との間に発生する部分的な隙間を抑制できる。 In the first embodiment, the window-side winding pipe and the indoor-side winding pipe are rotatably attached to the wall via a pair of support members, a support bar, and a bracket. In the second embodiment, The window-side take-up pipe and the indoor-side take-up pipe are rotatably attached to the ceiling via a pair of support members, a support bar, and a bracket. Further, it may be rotatably attached to the window frame via the support bar and the bracket. In the first and second embodiments, the window curtain is a translucent curtain and the indoor curtain is shielded. However, both the window curtain and the indoor curtain are used. May be used as a curtain capable of shading. In this case, when the lower edge of the indoor curtain reaches the feeding lower limit position and the lower edge of the window curtain reaches the winding upper limit position, the light that has passed below the translucent window curtain is reflected by the window winding. Even if it tries to enter the room through the gap between the intake pipe and the indoor side take-up pipe, this light is blocked by the light leakage prevention member and the cover part, and the light entering from the lower side of the indoor side take-up pipe is not It is blocked by an indoor curtain that can block light. Furthermore, in the first and second embodiments, the vicinity of the leading edge of the light leakage preventing member is not applied to the upper surface of the indoor winding pipe or the upper surface of the indoor curtain wound around the indoor winding pipe. The torsion coil spring, leaf spring, etc. are attached to the hinge member, and the light leakage prevention member is wound on the surface of the indoor winding pipe or on this winding pipe by a certain amount of spring elasticity. It may be brought into pressure contact with the surface of the indoor curtain. As a result, even if some wrinkles occur in the indoor curtains wound around the indoor winding pipe, the light leakage prevention member crushes the wrinkles and winds up the indoor curtains on the indoor winding pipe. Since it adheres to the body, a partial gap generated between the light leakage prevention member and the indoor curtain body can be suppressed.

１０，５０ロールスクリーン
１１壁
１２，５２ブラケット
１３，５３一方の支持部材
１４他方の支持部材
１５支持バー
１５ａバー本体
１５ｂカバー部
１６，５６窓側巻取パイプ
１７，５７室内側巻取パイプ
１８窓側幕体
１９室内側幕体
２０光漏れ防止部材
２１，６１ヒンジ部材
２１ａ，６１ａヒンジ用被係合部
２１ｂ，６１ｂヒンジ用係合部
５１天井 DESCRIPTION OF SYMBOLS 10,50 Roll screen 11 Wall 12,52 Bracket 13,53 One support member 14 The other support member 15 Support bar 15a Bar main body 15b Cover part 16,56 Window side winding pipe 17,57 Indoor side winding pipe 18 Window side curtain Body 19 Indoor curtain 20 Light leakage prevention member 21, 61 Hinge member 21a, 61a Engagement portion for hinge 21b, 61b Engagement portion for hinge 51 Ceiling

Claims

A single support bar attached to a wall, window frame or ceiling via a plurality of brackets and having a pair of support members attached to both ends, and a window side rotatably attached to the upper side of the pair of support members and the window side A winding pipe, an indoor side winding pipe rotatably attached to the lower side and the indoor side of the pair of support members, and an upper edge fixed to the window side winding pipe so that the winding can be delivered to the window side winding pipe. A roll screen comprising: a window curtain to be taken; and an indoor curtain that is wound around the indoor winding pipe so that an upper edge is fixed to the indoor winding pipe.
A bar body provided in parallel with the window-side winding pipe and the indoor-side winding pipe and locked to the bracket, and a cover part suspended from the indoor side edge of the bar body. Have
A base end edge of a light leakage prevention member having a width substantially the same as the width of the cover portion is rotatably attached to the inner surface of the cover portion,
The vicinity of the leading edge of the light leakage preventing member is always in contact with the upper surface of the indoor-side winding pipe or the upper surface of the indoor-side curtain wound around the indoor-side winding pipe. Roll screen.

The lower end edge of the cover part is configured to be positioned above or below a predetermined distance from the upper surface of the indoor winding pipe, and the base end edge of the light leakage prevention member is connected to the cover part via a hinge member. The hinge member is pivotally attached to the inner surface, and the hinge member is formed on the inner surface of the cover portion so as to extend in the horizontal direction, and is formed on the base end edge of the light leakage prevention member. A hinge engaging portion that engages with the engaged portion so as to be relatively rotatable, and the vicinity of the tip edge of the light leakage preventing member is the upper surface of the indoor winding pipe or the indoor winding. 2. The roll screen according to claim 1, wherein the roll screen is configured to always contact the upper surface of the indoor curtain wound around a pipe by its own weight.

The engaged portion for hinges is formed in a substantially C-shaped cross section, the engaging portion for hinges is formed in a substantially T shape in cross section, and the top of the T shape of the engaging portion for hinges is the hinge. The roll screen of Claim 2 accommodated in the inside of the C-shape of the to-be-engaged part.