JP6894028B2 - Roll screen - Google Patents

Description

The present invention relates to a roll screen having a shielding material.

Conventionally, as a roll screen having a shielding material, for example, there is a roll screen in which a double-layered screen can be relatively moved in the vertical direction to adjust the amount of lighting in the room.

In such a roll screen, a transmitting portion that partially transmits light and a light-shielding portion that blocks light are alternately formed in a striped pattern, and the screen is suspended and supported in a state in which the screen is doubly overlapped. There is. Then, by operating the operating means, the front and rear screens are relatively moved in the vertical direction to adjust the degree of overlap between the transmissive portion and the light-shielding portion, so that the amount of lighting can be adjusted.

For example, a configuration is disclosed that allows the screen to be smoothly raised and lowered while maintaining the double screen in close contact (see, for example, Patent Document 1).

By the way, in order to prevent light leakage from the gap between the take-up shaft (that is, the take-up pipe) that winds up the screen and the lower surface of the frame body that supports the take-up pipe, it is based on the lower surface of the frame body. A technique for providing a gap prevention member that rotatably supports the end edge and hangs it on the peripheral surface of the take-up pipe is disclosed (see, for example, Patent Document 2).

Further, in order to prevent light leakage from the gap between the take-up pipe that winds up the screen and the lower surface of the frame body that supports the take-up pipe, the end portion is oscillatingly supported on the front side surface of the frame body. A technique for providing a gap prevention member is disclosed (see, for example, Patent Document 3).

Japanese Patent No. 331 1994 Jikken 4-48316 Gazette Japanese Unexamined Patent Publication No. 2013-136900

In the technique disclosed in Patent Document 1, since the double screen is maintained in close contact with each other, light may leak from the gap between the screens when the transmissive portion and the light-shielding portion of the screen are matched to each other to provide a light-shielding state. It is effective in that it disappears. However, this technique has a problem that the screen may be damaged because the double screens are in close contact with each other and move relative to each other during the raising / lowering operation.

Further, not only in the case of hanging a double screen, but also in a roll screen in which a single screen is hung, a take-up pipe capable of winding or rewinding the screen and a frame supporting the take-up pipe are used. Light leakage may occur between them. Therefore, as in Patent Documents 2 and 3, a light leakage prevention member for suppressing this light leakage is separately movably supported by a frame body, and the tip portion thereof or the like is provided so as to come into contact with the take-up pipe. There is also. However, if the light leakage prevention member is configured to come into contact with the take-up pipe in this way, the light leakage prevention member may damage the screen due to winding or rewinding of the screen by the take-up pipe. It is also desirable to consider the safety of such a movable light leakage prevention member.

Further, as disclosed in Patent Document 1, by providing a face roller near the opening of the weight member (weight bar) of the double screen, the lower end portion of the double screen is folded back and smoothly moved. Although it can be configured, the weight member becomes large, and there is room for improvement from the viewpoint of design.

An object of the present invention is to provide a roll screen capable of maintaining the quality of the shielding material in view of the above-mentioned problems.

The roll screen of one aspect according to the present invention is a roll screen having a shielding material, and is a winding pipe that suspends and supports the shielding material so as to be able to wind up, a mounting frame that supports the winding pipe, and the winding. It has an operation pulley for hooking an endless operation cord so that the pipe can be rotated, and is rotatably supported by the mounting frame in response to an operation by the endless operation cord, and is pivotally supported by the winding pipe and the mounting. It is characterized by being provided with movable fins that can block light leaking from a gap between the frame and the frame.

Further, in the shade of an aspect according to the present invention, the both end portions of the left and right direction before Symbol movable fins, characterized in that the fins cover each are provided.

Further, in one aspect of the roll screen according to the present invention, an operation unit which has an operation pulley for hooking an endless operation cord so that the take-up pipe can be rotated and operates a pendulum when operated by the endless operation cord. The movable fin is further provided with a detachable auxiliary member capable of adjusting the position of the force point by the pendulum operation of the operation unit.

Further, in the roll screen of one aspect according to the present invention, the auxiliary member is configured to be removable by fitting into the opening of the fin cover provided at both ends of the movable fin in the left-right direction. It is a feature.

Further, in the shade of an aspect according to the present invention, prior SL operating unit, characterized in that it contains a plurality of cord guide member that allows guiding the operation code of said endless in the guide route asymmetrical in the longitudinal direction And.

Further, in the roll screen of one aspect according to the present invention, the plurality of code guide members are configured as two code guide members, and the operation unit is composed of two members capable of accommodating the two code guide members. It is characterized by being.

Further, in one aspect of the roll screen according to the present invention, the take-up pipe suspends and supports one end of the screen formed by folding one screen by a weight member so that the screen can be taken up, and the mounting frame is the other of the screen. A double shield is constructed to support the ends, the lower ends of the double shield are non-contact with each other in a state where the weight member is in the lower limit position, and the upper end of the double shield is It is characterized in that it is in contact with each other or is closer than the lower end.

Further, in one aspect of the roll screen according to the present invention, the take-up pipe suspends and supports one end of the screen formed by folding one screen by a weight member so that the screen can be taken up, and the mounting frame is the other of the screen. A double shield is constructed to support the end, and the tip of the movable fin is in contact with or close to the upper end of the double shield in a stationary state in which the pendulum operation of the operating unit is inactive. Is configured to come into contact with the shielding material supported by the mounting frame diagonally above the take-up pipe.

According to the present invention, the double shielding materials are surely separated during the ascending / descending operation, and the frictional force of the double shielding materials is eliminated or reduced to move relative to each other, so that there is no risk of damaging the shielding materials. Further, when stationary, the distance between the double shielding materials can be brought close to or in close contact with each other, and the light shielding property thereof can be improved.

It is a front view which shows the schematic structure of the roll screen of 1st Embodiment by this invention. It is a side perspective view which shows the schematic structure of the roll screen of 1st Embodiment by this invention. It is an exploded perspective view which shows the schematic structure around the operation unit in the roll screen of 1st Embodiment by this invention. It is an exploded perspective view which shows the detailed structure of the operation unit in the roll screen of 1st Embodiment by this invention. (A), (b), and (c) are operation explanatory views of the operation unit in the roll screen of the first embodiment according to the present invention. (A) and (b) are explanatory views of the operation unit in the roll screen of the 1st Embodiment by this invention. (A) and (b) are explanatory views for explaining the left-right rearrangement of the operation unit in the roll screen of the first embodiment according to the present invention. (A) and (b) are an exploded perspective view and a perspective view thereof for explaining the movable fin in the roll screen of the first embodiment according to the present invention. (A) and (b) are perspective views which show the partial structure which shows the structural example of the movable fin in the roll screen of 1st Embodiment by this invention, respectively. It is a side perspective view which shows the schematic structure of the roll screen of the 2nd Embodiment by this invention.

Hereinafter, the roll screen 1 of each embodiment according to the present invention will be described with reference to the drawings. In the specification of the present application, with respect to the front view of the roll screen 1 shown in FIG. 1, the upper side and the lower side in the drawing are upward (or upper) and lower (or lower), respectively, according to the hanging direction of the screen 4. ), The left direction in the drawing is defined as the left side of the roll screen 1, and the right direction in the drawing is defined as the right side of the roll screen 1. Further, in the example described below, with respect to the front view of the roll screen 1 shown in FIG. 1, the side to be visually recognized is the front side (or the indoor side), and the opposite side is the rear side (or the outdoor side). When referred to as the front-rear direction, the direction perpendicular to the illustrated surface in the front view of FIG. 1 is referred to.

[First Embodiment]
(overall structure)
First, the configuration of the roll screen 1 of the first embodiment according to the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view showing a schematic configuration of the roll screen 1 of the first embodiment according to the present invention, and FIG. 2 is a side perspective view showing a schematic configuration of the roll screen 1 of the first embodiment according to the present invention. ..

As shown in FIG. 1, the roll screen 1 of the present embodiment is installed by fixing the upper end of the mounting frame 2 to a mounting surface such as a ceiling surface via a bracket 8. Then, the support members 2a and 2b are fixed to the left and right ends of the mounting frame 2, and the cylindrical winding pipe 9 is rotatably supported between the support members 2a and 2b by the fixed shaft 11 extending from the support members 2a and 2b. Will be done.

At the right end of the take-up pipe 9, an operation unit 6 that can rotate relative to the take-up pipe 9 and the support members 2a and 2b is provided. Further, an operation pulley 10 is housed in the operation unit 6, and an endless operation code 3 hung around the operation pulley 10 is hung down. Then, the take-up pipe 9 is configured to be rotatable by the operation of the operation code 3. The operation code 3 is composed of an endless ball chain composed of a ball portion 3a and a chain portion 3b that are continuous at a predetermined pitch, and the surface of the operation pulley 10 has irregularities having a shape suitable for the ball portion 3a. It is composed.

The take-up pipe 9 is attached to one side of the screen 4 and is suspended and supported so that it can be taken up. The screen 4 that hangs down from the take-up pipe 9 and is folded back via a weight bar 5 that functions as a weight member. The other side is attached to a fixing portion 22 (see FIG. 2) provided on the outdoor end surface of the mounting frame 2 located above the take-up pipe 9. As shown in FIG. 2, the fixing portion 22 makes the length of the screen 4 adjustable so that the end portion of the screen 4 can be detachably locked. A roller 15 rotatably supported at both ends of the weight bar 5 is inserted through the lower end of the screen 4 that hangs down between the take-up pipe 9 and the fixing portion 22. As a result, the screen 4 is stretched based on the weight of the weight bar 5.

By the way, in the case of such a roll screen in which the double screen 4 is hung down, the lower end portion of the double screen can be folded back and smoothly moved by the roller 15 provided on the weight bar 5. As shown in 2, it is preferable to provide a guide member 5b in the vicinity of the opening 5a of the weight bar 5 so as to come into contact with the screen 4 and adjust the opening width thereof. Further, as shown in FIG. 2, the guide member 5b preferably has a rounded surface so as to reduce the rubbing noise with the screen 4. As a result, smooth operation can be realized while avoiding an increase in the size of the weight bar 5. However, if, for example, the double screen 4 is made of a material made of a chargeable material (for example, polyester) and the guide member 5b is also made of a chargeable material (particularly when the chargeable polarity is different), the guide member 5b and the screen 4 are guided. Contact (rubbing) with the member 5b may cause triboelectric charging or peeling charging of static electricity, and the screen 4 or the guide member 5b may be charged with static electricity. Such electrostatic charging, for example, adsorbs dust and the like in the air, resulting in smooth operation and fluctuations in proximity and separation between the front and rear screens, which causes impaired design. Therefore, it is desirable that both the screen 4 and the guide member 5b are made of an antistatic material, but by forming either one of them with an antistatic material, the generation of the static electricity can be suppressed. In particular, it is desirable to form the guide member 5b with an antistatic material in consideration of increasing the degree of freedom of the material of the screen 4 to be used. Such an antistatic material may be an existing material that can be molded and has an antistatic effect, such as a resin material containing a conductivity-imparting material such as carbon or a conductive filler. Further, when the screen 4 is made of polyester without using the conductivity-imparting material, molding the guide member 5b with PET resin is also good for suppressing static electricity.

Therefore, when the operation code 3 is operated to rotate the take-up pipe 9 in the screen winding direction, the weight bar 5 is raised, and when the take-up pipe 9 is rotated in the screen rewinding direction, the weight bar 5 is lowered.

Further, in the take-up pipe 9, a spring motor for reducing the operating force at the time of hoisting the screen 4 is housed on the left end side thereof, and a stopper device for preventing the screen 4 from dropping its own weight is housed on the right end side. Not shown).

In the screen 4, the transmitting portion 4b that partially transmits light and the light-shielding portion 4a that blocks light are alternately formed in a striped pattern, and the screen 4 is suspended and supported in a state in which the screen 4 is doubly overlapped. By operating the operation code 3, the front and rear screens 4 are relatively moved in the vertical direction to adjust the degree of overlap between the transmitting portion 4b and the light shielding portion 4a, so that the amount of light collected can be adjusted. The pitch at which the transmitting portion 4b that partially transmits light and the light-shielding portion 4a that blocks light are alternately formed in a striped pattern can be arbitrarily determined.

By the way, in the roll screen 1 according to the present invention, the details will be described later, but as shown in FIG. 2, the operation unit 6 is provided so as to be relatively rotatable with respect to the take-up pipe 9 and the support members 2a and 2b. The pendulum operates when the operation is performed by the operation code 3. A support portion 21 for supporting the base shaft of the movable fin 7, which will be described in detail later, is provided on the bottom portion of the mounting frame 2. Preferably, the vertical length of the movable fin 7 is long enough to close the gap between the mounting frame 2 and the take-up pipe 9. In this way, the movable fins 7 are provided over substantially the entire length of the mounting frame 2 in the longitudinal direction (left and right rear), and are supported so as to be relatively rotatable in the front-rear direction with respect to the mounting frame 2.

Further, as shown in FIG. 2, in a state where the weight bar 4 is in the lower limit position, the lower ends of the double screen 4 are not in contact with each other, and the upper ends of the double screen 4 are in contact with each other, or the upper ends thereof. It is closer than the bottom edge. Then, when the upper end of the double screen 4 is in contact with or close to the operation unit 6 in a stationary state in which the pendulum operation is inactive, the tip of the movable fin 7 is attached diagonally above the take-up pipe 9. It is configured to abut on the screen 4 on the side supported by the frame 2.

Then, the protruding piece 61 of the operation unit 6 presses the auxiliary member 71 of the fin cover 72 provided at the left-right end of the movable fin 7 in response to the pendulum operation of the operation unit 6, thereby causing the double screen. It operates so that the interval of 4 is separated. The auxiliary member 71 is removable from the fin cover 72, and is required to be pressed according to the length of the movable fin 7 in order to be able to adjust the position of the force point by the pendulum operation of the operation unit 6. The acting force can be changed. As described above, the movable fin 7 is configured together with the fin cover 72 and its auxiliary member 71 as a shielding material spacing adjusting mechanism that operates so as to separate the double screens 4 according to the pendulum operation of the operating unit 6. ..

That is, assuming that there is no pendulum operation of the operation unit 6, when the weight bar 4 is in the lower limit position, the upper ends of the double screen 4 are always in contact with each other, and even if they are not always in contact with each other, they are close to each other. In the stationary state, the screen 4 may be thickened and come into contact with the screen 4 due to the winding by the winding pipe 9. On the other hand, in the configuration according to the present invention, by causing the operation unit 6 to perform a pendulum operation, the double screens 4 are operated so as to be spaced apart from each other, so that damage to the screens 4 due to the contact can be suppressed. It should be noted that it is preferable that the operation unit 6 is in a stationary state in which the pendulum operation is not activated and the upper ends of the double screen 4 are in contact with each other because the shielding property when the light-shielding state is set can be improved.

In particular, in the operation unit 6, the first and second operation unit members 6a and 6b that accommodate and support the operation pulley 10 for hanging the endless operation cord 3 so as to be relatively rotatable by sandwiching the operation pulley 10 from both sides thereof. It will be provided. Further, between the first and second operation unit members 6a and 6b, the first code guide member 6c for guiding the operation code 3 hanging from the operation pulley 10 for winding, and the operation pulley 10 hanging from the operation pulley 10 for rewinding. It is configured to have a second code guide member 6d for guiding the operation code 3. The first and second code guide members 6c and 6d each serve as the first code guide unit by using the code guide wall 64 located below between the first and second operation unit members 6a and 6b. A guide path and a guide path as a second code guide unit are formed, and the operation codes are guided by different guide paths so as to guide the endless operation code 3 from the hooking position with respect to the operation pulley 10 to the outdoor side rather than on the vertical line. It is designed to guide 3.

(Operation unit and shielding material spacing adjustment mechanism)
Hereinafter, a specific configuration of the operation unit 6 and its surroundings will be described with reference to FIGS. 3 and 4. FIG. 3 is an exploded perspective view showing a schematic configuration around the operation unit 6 in the roll screen of the first embodiment according to the present invention. FIG. 4 is an exploded perspective view showing a detailed configuration of the operation unit 6.

First, referring to FIG. 3, a support portion 21 for supporting the base shaft of the movable fin 7 is provided on the bottom portion of the mounting frame 2. Therefore, the movable fins 7 are provided over substantially the entire length of the mounting frame 2 in the longitudinal direction (left and right rear), and are supported so as to be relatively rotatable in the front-rear direction with respect to the mounting frame 2.

The operation unit 6 houses the operation pulley 10 for hanging the endless operation code 3 and the first and second code guide members 6c and 6d for guiding the operation code 3 hanging from the operation pulley 10 inside, and the operation pulley. It is composed of two operation unit members 6a and 6b that are sandwiched and integrated so as to be relatively rotatable with respect to 10. The two operation unit members 6a and 6b can be fixed by using mounting screws 60 for integration.

The operation pulley 10 is provided with a through hole for using the fixed shaft 11 extending from the support member 2a as a rotation shaft. Further, unevenness for hooking the operation cord 3 is formed on the right end side of the operation pulley 10, and winding is performed on the left end side of the operation pulley 10 via a flange having a diameter larger than the outer circumference on which the operation cord 3 is hooked. A fitting portion 10a that fits on the inner peripheral surface of the right end of the pipe 9 is provided. Therefore, the take-up pipe 9 is rotatably supported by the support member 2a as the operation pulley 10 rotates.

The screen 4 (not shown in FIG. 3) is hung between the take-up pipe 9 and the fixing portion 22, and is stretched based on the weight of the weight bar 5.

Then, the first and second cord guide members 6c and 6d are operated in an endless manner during non-pendulum operation by using the cord guide wall 64 located below between the first and second operation unit members 6a and 6b. The operation code 3 is guided by different guide paths so that the code 3 is guided from the hooking position with respect to the operation pulley 10 to the outdoor side rather than on the vertical line. The first and second cord guide members 6c and 6d are detachably configured with respect to the first and second operation unit members 6a and 6b in this example, but this includes the operation unit 6 as shown in the figure. This is because the same member can be used for rearrangement when the operation unit 6 is configured by the right operation arranged on the right side and when the operation unit 6 is configured by the left operation arranged on the left side.

In this way, the operation unit 6 is provided so as to be relatively rotatable with respect to the take-up pipe 9 and the support members 2a and 2b, whereby the operation unit 6 operates as a pendulum when operated by the operation code 3.

Then, the protruding piece 61 of the operation unit 6 presses the auxiliary member 71 of the fin cover 72 provided at the left-right end of the movable fin 7 in response to the pendulum operation of the operation unit 6, thereby causing the double screen. It operates so that the interval of 4 is separated. The details of the auxiliary member 71 will be described later, but the auxiliary member 71 can be attached to and detached from the fin cover 72. As a result, the position of the force point due to the pendulum operation of the operation unit 6 can be adjusted, and the acting force required for the pressing can be changed according to the length of the movable fin 7. Further, when the operation unit 6 is arranged on the right side as shown in the drawing, the auxiliary member 71 can be attached to the fin cover 72 on the right end side of the movable fin 7, and the operation unit 6 is arranged on the left side. When configured by left operation, the auxiliary member 71 can be attached to the fin cover 72 on the left end side of the movable fin 7.

In this way, the movable fin 7 is configured together with the fin cover 72 and its auxiliary member 71 as a shielding material spacing adjusting mechanism that operates so that the double screen 4 is spaced apart according to the pendulum operation of the operating unit 6. The pendulum.

Next, the detailed structures of the first and second operation unit members 6a and 6b and the first and second code guide members 6c and 6d constituting the operation unit 6 will be described with reference to FIG. As shown in FIG. 4, the first and second operation unit members 6a and 6b are formed of substantially plate members having substantially inverted drop-shaped outer shapes, respectively, and accommodate the operation pulleys 10 inside each other and can rotate relative to each other. It is designed to be sandwiched between the two so that it can be supported and engaged. Therefore, the first and second operation unit members 6a and 6b are formed with substantially circular opening support portions 65f and 66f according to the outer diameter of the operation pulley 10 that supports them, respectively. That is, a tubular protrusion is formed on the right end side of the operation pulley 10 (not shown), and the first operation unit member 6a has the protrusion in order to engage with the protrusion (not shown). The opening support portion 65f is formed in a round hole shape slightly larger than the outer diameter. Then, in order to engage with a flange having a diameter larger than the outer circumference on which the operation cord 3 is mounted on the left end side of the operation pulley 10, the diameter of the second operation unit member 6b is slightly larger than the outer diameter of the flange. The opening support portion 66f is formed in a round hole shape.

Then, above the first and second operation unit members 6a and 6b, the pendulum operation is integrated with each other and substantially above the horizontal line passing through the axial center of the operation pulley 10 in the non-operating state (stationary state). Cord cover portions 62 and 63 projecting in the engaging direction are formed so as to form a semicircular cross-sectional shape, respectively. The inner wall of the cord cover portion 62 is formed with claw portions 62a at two locations, and the cord cover portion 63 is provided with fitting holes 63a at two locations so that the cord cover portion 62 can be fitted with the claw portions 62a. The cover portions 62 and 63 are overlapped and integrally fitted to form a cord cover, whereby the operation cord 3 to be hung can be prevented from coming off from the operation pulley 10 and causing slippage.

A projecting piece 61 having a substantially inverted trapezoidal shape is formed on the top of the first operation unit member 6a, and a concave groove 61a having a substantially square shape and a stepped recess is formed on the projecting piece 61. A convex piece 63b is formed on the top of the second operation unit member 6b so as to engage with the concave groove 61a and be buried in a stepwise manner.

On the other hand, a substantially square box-shaped cord guide wall 64 protruding in the engaging direction is formed below the second operation unit member 6b, and above the cord guide wall 64 below the first operation unit member 6a. An engaging piece 65e having a substantially I cross-sectional shape protruding in the engaging direction is provided so as to engage with the inner groove 66e provided in the above.

Further, the screw holes 65d provided below the first operation unit member 6a and the screw holes 66d provided below the code guide wall 64 of the second operation unit member 6b are the first and second operation units. It is provided so that the members 6a and 6b can be fixed by using a mounting screw 60 (see FIG. 3) in order to engage and fix the members 6a and 6b.

Then, the first operation unit member 6a is formed with two support rods 65b protruding in the engaging direction in order to support the first and second cord guide members 6c and 6d, respectively, and each support rod 65b is formed with the support rods 65b. Through the through holes 67b and 68b provided in the first and second cord guide members 6c and 6d, respectively, it becomes possible to engage with the respective support rod receiving portions 66b provided in the second operation unit member 6b at two locations. There is.

Further, in the first operation unit member 6a, engaging grooves 65a and 65c for supporting the first and second cord guide members 6c and 6d according to their respective shapes are symmetrically positioned in the front-rear direction. The second operation unit member 6b is also provided with engagement grooves 66a and 66c for supporting the first and second cord guide members 6c and 6d according to their respective shapes. It is provided at two locations in a symmetrical positional relationship in the front-rear direction.

As shown in the figure, the first cord guide member 6c has a main body 67 having a substantially triangular columnar width, and has a through hole 67b penetrating in the direction of the pillar so that a support rod 65b can be inserted, and engaging grooves 65c and 66c. Protruding portions 67c that project symmetrically on both sides of the substantially triangular surface are provided so as to be engaged with the above.

As shown in the figure, the second cord guide member 6d has a vertically narrow substantially triangular columnar main body 68, and has a through hole 68b penetrating in the column direction and an engaging groove 65a so that a support rod 65b can be inserted therethrough. , 66a are provided with projecting portions 68a that project symmetrically on both sides of the substantially triangular surface thereof.

Therefore, the first and second cord guide members 6c and 6d can be mounted on the first and second operation unit members 6a and 6b by changing their arrangements in the front-rear direction.

Then, the first and second code guide members 6c and 6d operate the endless operation code 3 by using the code guide wall 64 located below between the first and second operation unit members 6a and 6b. The operation code 3 is guided by different guide paths so as to guide the operation code 3 from the hooking position with respect to the pulley 10 to the outside of the room rather than on the vertical line.

More specifically, the operation of the operation unit 6 will be described with reference to FIG. First, referring to FIG. 5A, the operation unit 6 is supported so as to be relatively rotatable with respect to the operation pulley 10 (and the take-up pipe 9), and the lower limit position, the intermediate position, and the upper limit position of the weight bar 5 are supported. At each stationary state, torque acts on the operation unit 6 in the direction in which the front and rear screens 4 are in close contact with each other due to their own weight (weight of the screen 4, weight bar 5, etc.). As a result, the operation code 3 is hung with reference to the first and second code guide members 6c and 6d.

In this stationary state, when the weight bar 5 is in the lower limit position, or when the screen 4 is wound around the take-up pipe 9 at the intermediate position and the upper limit position of the weight bar 5 with a predetermined winding diameter. The space between the double screens 4 is stabilized at a position where they are close to each other or in close contact with each other (the space between the double screens 4 d1). Therefore, it is possible to shift the transmissive portion 4b and the light-shielding portion 4a of the double screen 4 to make a semi-transparent state, or to make the transparent portion 4b and the light-shielding portion 4a of the screen 4 match to make a light-shielding state. In particular, it is possible to improve the light-shielding property when the light-shielding state is set. Since the fixing portion 22 of the mounting frame 2 of the present embodiment is configured to lock the length of the screen 4 in an adjustable manner, for example, when the weight bar 5 is in the lower limit position, it is in a shielding state. The structure makes it easy to adjust the length of the screen 4. Further, the movable fin 7 is formed of a metal material such as aluminum or a non-translucent resin material to shield external light that may enter from the gap between the mounting frame 2 and the take-up pipe 9. You can also do it.

Next, referring to FIG. 5B, for example, when the operation code 3 is operated so as to raise the weight bar 5 from the state where the weight bar 5 is in the lower limit position or the intermediate position, the screen 4 is wound around the take-up pipe 9. Taken. At this time, when the operation code 3 comes into contact with the second code guide member 6d on the indoor side and a clockwise torque is applied to the operation unit 6, the operation unit 6 operates as a pendulum, and the side of the protruding piece 61 of the operation unit member 6a. The end rotates the movable fin 7 and presses the screen 4 on the outdoor side. Therefore, the interval d2 at the time of operation of the double screen 4 is configured to be larger than the interval d1 at the time of rest. Therefore, the double screen 4 does not rub during the ascending operation, or even if it rubs, it is partially moving up and down, or the frictional force is reduced and the screen 4 moves relative to each other, so that there is no risk of damaging the screen 4.

Similarly, referring to FIG. 5C, for example, when the operation code 3 is operated so as to lower the weight bar 5 from the state where the weight bar 5 is in the intermediate position or the upper limit position, the weight bar 5 is wound around the take-up pipe 9. The screen 4 is lowered. At this time, the operation cord 3 comes into contact with the cord guide portion 6c on the outdoor side, and a clockwise torque is applied to the operation unit 6, so that the operation unit 6 operates as a pendulum, and the side end portion of the protruding piece 61 of the operation unit member 6a. Rotates the movable fin 7 and presses the screen 4 on the outdoor side. Therefore, the interval d3 when the double screen 4 is operated is configured to be larger than the interval d1 when the double screen 4 is stationary. Therefore, the double screen 4 does not rub during the lowering operation, or even if it rubs, it moves partially during ascending / descending, or the frictional force is reduced and the screen 4 moves relative to each other, so that there is no risk of damaging the screen 4.

Even if friction occurs in a part of the screen 4 near the upper limit of the roll-up thickness, the frictional force acts in a direction of reducing the frictional force.

Further, during the ascending operation, the guide path between the second code guide member 6d on the indoor side and the code guide wall 64, which is slightly larger than the outer shape of the ball portion 3a of the operation code 3, is at least two balls continuous at a predetermined pitch. Since the portion 3a is formed so as to come into contact with the second cord guide member 6d, rattling in the operation unit 6 during operation of the operation cord 3 is suppressed, and interference between the ball portion 3a and the second cord guide member 6d is suppressed. It is possible to reduce the operation noise that may occur in. Further, since at least two consecutive ball portions 3a at a predetermined pitch are formed to come into contact with the first cord guide member 6c during the lowering operation, this may occur due to interference between the ball portions 3a and the first cord guide member 6c. The operation sound can be reduced. Further, since a guide path sufficiently larger than the outer shape of the ball portion 3a of the operation code 3 is secured between the first cord guide member 6c on the outdoor side and the cord guide wall 64, pendulum movement in the opposite direction and interference It is difficult for the operation sound that can be generated in the above to be generated.

That is, in the operation unit 6 according to the present invention, as shown by the broken lines A and B in FIG. 6A, the endless operation code 3 is mounted on the operation pulley 10 during non-pendulum operation (resting). Since each operation code 3 that is configured to be guided to the outside of the room rather than on the vertical line is guided by different guidance paths from each other, it is not limited to pulling the endless operation code 3 forward, but vertically. Even if it is pulled downward, the pendulum will operate reliably, improving its operability. Further, as shown by the opening angle θ in FIG. 6B, the outlet of the operation code 3 of the operation means hanging to the outdoor side passes through the axial center of the operation pulley 10 during the non-pendulum operation (resting). Since the opening is from below the horizon, it is possible to suppress the reverse pendulum operation by the operation code 3 during the lowering operation, which is easy to pull in to the outdoor side. Further, the operation sound that may be generated by the interference between the operation pulley 10 and the operation unit 6 is less likely to be generated.

Further, the first and second cord guide members 6c and 6d can be integrated with any one of the first and second operation unit members 6a and 6b, but the first and second cord guide members 6c and 6d can be detachably configured. As a result, when the operation unit 6 is arranged on the left side as shown in FIG. 7A, and the operation unit 6 is arranged on the right side as shown in FIG. 7B, the operation unit 6 is arranged on the right side. In any case, the first cord guide member 6c can be attached to the outdoor side and the second cord guide member 6d can be attached to the indoor side, and the same member can be rearranged. By adopting the member configuration that enables the rearrangement in this way, it is possible to reduce the burden of parts management of the operation unit 6 and, forcibly, reduce the cost.

Further, the movable fin 7 has an auxiliary member 71 that can be attached to and detached from the fin cover 72 provided at the end in the left-right direction, so that the presence or absence of the auxiliary member 71 and the shape of the auxiliary member 71 can be determined. The position of the force point due to the pendulum movement of the operation unit 6 can be adjusted by the change, and the adaptability and commonality of the roll screen to various forms can be improved. For example, the acting force required for pressing the pendulum operation of the operating unit 6 can be changed according to the length of the movable fin 7 in the vertical direction to reduce the operating force.

Further, although the movable fin 7 can be made by integrating the fin cover 72 and the auxiliary member 71, the shape of the fin cover 72 installed at the end portion in the left-right direction thereof is made common, and the auxiliary member 71 is used. As a separate member, it is preferable that the fin cover 72 is detachably attached to any of the fin covers 72 provided at the ends in the left-right direction. As a result, the burden of managing parts of the fin cover 72 and the auxiliary member 71 can be reduced, and the cost can be reduced.

More specifically, FIG. 8 shows an example in which the fin cover 72 is provided on the movable fin 7 with the auxiliary member 71 as a separate member. FIG. 8A is an exploded perspective view for explaining the movable fin 7, and FIG. 8B is a perspective view showing a state in which the auxiliary member 71 is attached to the fin cover 72 as a separate member to the movable fin 7. Here, a synthetic resin fin cover 72 and an auxiliary member 71 will be described as an example of the aluminum movable fin 7, but the movable fin 7 may also be a synthetic resin.

As shown in FIG. 8A, the fin cover 72 is configured to be attachable to either the left or right end of the movable fin 7, and the auxiliary member 71 can be integrated by fitting as a separate member. .. The fin cover 72 is formed of a main body plate 72b having a substantially rhombic plate piece 72a on the side and having an abbreviated cross-sectional shape. The substantially rhombic plate piece 72a has a screw hole 72c formed substantially in the center thereof, and can cover one side end of the movable fin 7. Further, a notch 72d is provided at the top of the main body plate 72b, whereby the base shaft 7a pivotally supported by the support portion 21 provided at the bottom of the mounting frame 2 can be projected from the main body plate 72b. Then, the fin cover 72 can be attached to one end of the movable fin 7 and fixed by a fixing screw 73 screwed into the recess 7b of the movable fin 7 through the screw hole 72c.

Further, the main body plate 72b of the fin cover 72 is provided with an opening 72e, so that the auxiliary member 71 can be attached so as to expose the abbreviated cross-sectional shape of the contacted portion 71a of the auxiliary member 71. There is. The auxiliary member 71 is formed with bifurcated legs 71b and can be elastically deformed in the vertical direction. The leg portion 71b is formed with a bumping portion 71c that protrudes in the left-right direction, and the bumping portion 71c is positioned in contact with the inner wall 72f around the opening 72e of the fin cover 72. The fin cover 72 is provided with claws 72g at two upper and lower positions so that the legs 71b of the auxiliary member 71, which is elastically deformed and attached, can be locked from above and below so that the fin cover 72 is held in this positioned state. Has been done. In this way, FIG. 8B shows how the auxiliary member 71 is attached to the fin cover 72 as a separate member to the movable fin 7.

Therefore, the movable fins 7 have a common shape of the fin covers 72 provided at the ends in the left-right direction thereof, and the auxiliary member 71 can be attached to and detached from any of the fin covers 72.

The vertical length of the movable fin 7 depends on the structure of the mounting frame 2 in the roll screen 1 to be applied, the winding diameter of the winding pipe 9, or the distance between the mounting frame 2 and the winding pipe 9. The cross-sectional shape is not particularly limited. However, for the purpose of reducing the burden of parts management of the fin cover 72 and the auxiliary member 71, and thus reducing the cost, for example, as shown in FIG. 9A, the form of the movable fin 7 described above (length a in the vertical direction). In addition, the form of the movable fin 7 (length b <a in the vertical direction) as shown in FIG. 9B is also prepared, and various roll screens 1 can be provided with the number of types including the application of the auxiliary member 71. It can be operated as applicable. The form of the movable fin 7 as shown in FIG. 9B shows an example having a relatively large bent cross-sectional shape, but the present invention is not limited to this.

As described above, in the roll screen 1 of the present embodiment, the double screens 4 are surely separated during the raising and lowering operation, and the frictional force of the double screens is eliminated or reduced so that the double screens move relative to each other. There is no risk of damaging the screen. Then, when stationary, the distance between the double screens 4 can be brought close to or in close contact with each other, and in the screen 4 having the transmissive portion 4b and the light-shielding portion 4a, when the transmissive portion and the light-shielding portion are matched to be in a light-shielding state. It is possible to improve the light blocking effect of.

In particular, the first and second code guide members 6c and 6d utilize the code guide wall 64 located below between the first and second operation unit members 6a and 6b during non-pendulum operation (at rest). The operability can be improved by guiding the operation code 3 by different guide paths so as to guide the endless operation code 3 from the hooking position with respect to the operation pulley 10 to the outdoor side rather than on the vertical line. it can.

Further, the operation unit 6 is configured so that the outlet of the operation code 3 of the operation means hanging outside the room opens below the horizontal line passing through the axis center of the operation pulley 10 during non-pendulum operation (resting). Therefore, it is possible to suppress the pendulum operation in the opposite direction, and it is possible to make it difficult to generate an operation sound that may be generated by the interference between the operation pulley 10 and the operation unit 6 at that time.

Further, the movable fin 7 can adjust the position of the force point by the pendulum movement of the operation unit 6 by the detachable auxiliary member 71 so as to change the acting force required for the pressing related to the pendulum movement according to the vertical length thereof. By configuring, it can be configured to reduce the operating force.

Further, by forming the operation unit 6 and the movable fin 7 with a member capable of rearranging the right side operation and the left side operation, the burden of parts management can be reduced, and the cost can be reduced.

Further, the movable fin 7 has a length sufficient to close the gap between the mounting frame 2 and the take-up pipe 9, so that light leakage from the gap is prevented regardless of the light-shielding property of the screen 4. It becomes possible.

[Second Embodiment]
Next, the configuration of the roll screen 1 of the second embodiment according to the present invention will be described with reference to FIG. In FIG. 10, the same reference numbers are assigned to the same components as those in the first embodiment.

In the first embodiment, an example in which one screen 4 is a folded double screen 4 has been described, but the gap between the one screen 4 and the mounting frame 2 and the take-up pipe 9 is closed. A double shielding material can be formed by using the light leakage prevention member 4S having a sufficient length, which will be described as the second embodiment.

For example, when the movable fin 7 is made of a translucent synthetic resin, or when it is made of a metal material and has an opening for weight reduction, or when the mounting frame 2 and the take-up pipe 9 are used. If the length is insufficient to close the gap between the two, light leakage may occur from the gap between the mounting frame 2 and the take-up pipe 9. At this time, a light leakage prevention member 4S having a length sufficient to close the gap between the mounting frame 2 and the take-up pipe 9 is hung from the fixing portion 22 of the mounting frame 2, for example, as shown in FIG. Therefore, the light-shielding property can be enhanced.

Then, as shown in FIG. 10, even when a single screen 4 and the light leakage prevention member 4S form a double shielding material, the operation unit 6 and the movable fin 7 are as described in the first embodiment. By configuring the screen 4, when the screen 4 is raised and lowered, the screen 4 and the light leakage prevention member 4S are surely separated from each other, and the frictional force of the double shielding material is eliminated or reduced so that the screen 4 can be moved relative to each other. And there is no risk of damaging the light leakage prevention member 4S. Further, when stationary, the distance between the screen 4 and the light leakage prevention member 4S can be brought close to or in close contact with each other, and the light blocking effect thereof can be improved. Further, it is possible to prevent the light leakage prevention member 4S made of a cloth or the like from being rolled up when the screen 4 is raised and lowered.

[Other Embodiments]
As a modification of the first embodiment or the second embodiment, for example, the take-up pipe 9 and the mounting frame 2 that suspend and support one screen 4 without using the light leakage prevention member 4S as shown in FIG. The movable fin 7 can be configured as a light leakage prevention member for the purpose of making it possible to block the light leaking from the gap between the two.

Therefore, with respect to each of the above-described embodiments, not only in the case of hanging the double screen 4, but also in the roll screen in which the single screen 4 is hung, light leakage is suppressed between the take-up pipe 9 and the mounting frame 2. By operating the operating unit 6 with the pendulum when the movable fins 7 are provided, the screen 4 and the movable fins 7 do not come into contact with each other when the screen 4 is wound or rewound by the take-up pipe 9, and the movable fins 7 are provided. 7 can eliminate the risk of damaging the screen 4.

Further, in the stationary state in which the pendulum operation is not activated, the operation unit 6 is configured to guide the endless operation code 3 from the hooking position with respect to the operation pulley 10 to the outdoor side rather than vertically, so that the pendulum is in the opposite direction. Since the movement is suppressed, even if light leakage may occur due to, for example, a pendulum movement in the opposite direction, it becomes possible to more reliably prevent the light leakage.

Further, with respect to each of the above-described embodiments, by providing fin covers 72 at both ends of the movable fin 7 in the left-right direction, for example, at both ends that may occur in edge cutting when the movable fin 7 is made of a metal material. Since the cut surface can be covered with the fin cover 72 made of synthetic resin, the safety of the movable fin 7 that operates with the pendulum operation of the operation unit 6 can be enhanced.

Further, as described above, the movable fin 7 is provided with a removable auxiliary member 71 capable of adjusting the position of the force point by the pendulum operation of the operation unit 6, so that the movable fin 7 can be used for various types of roll screens. The 7 and the fin cover 72 can be made into a common member, which contributes to the reduction in cost. In particular, the auxiliary member 71 is configured to be detachable by being fitted into the opening 72e of the fin cover 72, so that the convenience as a shared member can be enhanced.

Further, in the above-described example of the first embodiment, as a double screen 4 in which one screen is folded back, a transmitting portion 4b that partially transmits light and a light shielding portion 4a that blocks light alternate in a striped pattern. Although the formed example has been described, it is not necessary to form the transmitting portion 4b and the light shielding portion 4a alternately, for example, by forming a polka dot pattern, and if it is a double screen, the operation according to the present invention. It is effective in producing an effect.

Further, various shapes such as the shape of the operation unit 6 and the movable fin 7 or the shape of the fixing portion 22 of the mounting frame 2 can be used as long as the action / effect of the present invention is produced. Further, in order to surely separate the screen 4 during operation, an urging means such as a spring that assists the pendulum operation in which the screen 4 moves in the separating direction may be further provided.

Therefore, although the present invention has been described with reference to examples of specific embodiments, the present invention is not limited to the examples of the above-described embodiments, and various modifications can be made without departing from the technical idea.

According to the present invention, since the double shielding materials can be reliably separated during the ascending / descending operation, it is useful for roll screen applications using the double shielding materials.

1 Roll screen 2 Mounting frame 2a, 2b Support member 3 Operation code 4 Screen 4a Light-shielding part 4b Transmissive part 5 Weight bar 5a Weight bar opening 5b Guide member 6 Operation unit 6a First operation unit member 6b Second operation unit member 6c 1st cord guide member 6d 2nd cord guide member 7 Movable fin 8 Bracket 9 Winding pipe 10 Operation pulley 11 Fixed shaft 21 Support part 22 Fixed part 61 Projecting piece of operation unit 71 Auxiliary member 72 Fin cover

Claims (8)

A roll screen with a shielding material
A take-up pipe that suspends and supports the shielding material so that it can be taken up,
A mounting frame that supports the take-up pipe and
The take-up pipe has an operation pulley for hooking an endless operation cord so as to be rotatable, and is pivotally supported by the mounting frame in response to an operation by the endless operation cord. A roll screen characterized by including movable fins capable of blocking light leaking from a gap between the and the mounting frame. At both ends of the left and right direction before Symbol movable fins, characterized in that the fins cover each are provided, the roll screen according to claim 1. It has an operation pulley for hooking an endless operation cord so that the take-up pipe can be rotated, and further includes an operation unit that operates a pendulum when operated by the endless operation cord.
The roll screen according to claim 2, wherein the movable fin is provided with a detachable auxiliary member capable of adjusting the position of a force point by a pendulum operation of the operation unit. The roll screen according to claim 3, wherein the auxiliary member is configured to be detachable by fitting into openings of fin covers provided at both ends in the left-right direction of the movable fin. .. Before SL operating unit is characterized by containing a plurality of cord guide member that allows guiding the operation code of said endless in the guide route asymmetrical in the longitudinal direction, the roll according to claim 3 or 4 screen. The plurality of code guide members are configured as two code guide members.
The roll screen according to claim 5, wherein the operation unit is composed of two members capable of accommodating the two code guide members. The take-up pipe suspends and supports one end of the screen formed by folding one screen by a weight member so that the screen can be taken up, and the mounting frame supports the other end of the screen, so that a double shielding material is provided. Configured
When the weight member is in the lower limit position, the lower ends of the double shielding material are not in contact with each other, and the upper ends of the double shielding material are in contact with each other or closer to each other than the lower end. The roll screen according to any one of claims 1 to 6. The take-up pipe suspends and supports one end of the screen formed by folding one screen by a weight member so that the screen can be taken up, and the mounting frame supports the other end of the screen, so that a double shielding material is provided. Configured
When the upper ends of the double shielding material come into contact with or approach each other in a stationary state in which the pendulum operation of the operating unit is inactive, the tip of the movable fin is supported by the mounting frame diagonally above the take-up pipe. The roll screen according to any one of claims 3 to 6 , wherein the roll screen is configured to come into contact with a shielding material.

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