JP2020094488A - Rolling screen - Google Patents

Abstract

To provide a rolling screen capable of maintaining a quality of a shielding material.SOLUTION: A rolling screen 1 according to the present invention comprises: a wind-up pipe 9 windably suspending and supporting a shielding material (screen 4); an attaching frame 2 supporting the wind-up pipe 9; and a movable fin 7 having an operation pulley 10 on which an endless operation cord 3 is hung so as to rotate the wind-up pipe 9 and separating the screens 4 according to an operation by the operation cord 3. In addition, fin covers 72 are provided on both ends of the movable fin 7 in the right-left direction. Furthermore, an operation unit 6 houses a plurality of cord guide members 6c, 6d capable of guiding the endless operation cord 3 at a guide path which is asymmetric in the front-back direction.SELECTED DRAWING: Figure 2

Description

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

2. Description of the Related Art Conventionally, as a roll screen having a shielding material, for example, there is a roll screen in which double overlapping screens are relatively moved in the vertical direction to adjust the amount of light to enter the room.

The screen of such a roll screen is formed by alternately transmitting a part of the light that transmits the light and a light-shielding part that blocks the light in a striped manner, and the screen is hung and supported in a state of being superposed in double. There is. Then, by operating the operating means, the front and rear screens are relatively moved in the vertical direction, and the degree of overlap between the transmissive portion and the light shielding portion is adjusted, whereby the amount of light can be adjusted.

For example, a configuration is disclosed in which a double screen can be smoothly moved up and down while maintaining a close contact state (see, for example, Patent Document 1).

By the way, in order to prevent light leakage from the gap between the winding shaft (that is, the winding pipe) that winds the screen and the lower surface of the frame that supports this winding pipe, the base of the lower surface of the frame is used to prevent light leakage. There is disclosed a technique of providing a gap preventing member that rotatably supports the end edge and hangs the end edge on the peripheral surface of the winding pipe (see, for example, Patent Document 2).

Also, in order to prevent light leakage from the gap between the winding pipe that winds up the screen and the lower surface of the frame that supports this winding pipe, the end part is swingably supported on the front side surface of the frame. There is disclosed a technique of providing a gap preventing member (see, for example, Patent Document 3).

Patent No. 3311994 Japanese Utility Model Publication No. 4-48316 JP, 2013-136900, A

In the technique disclosed in Patent Document 1, since the double screen is maintained in a close contact state, light may leak from the gap between the screens when the transmissive portion and the light shielding portion of the screen are aligned to be in the light shielding state. It is effective in that it disappears. However, this technique has a problem that the double screens may closely contact and move relative to each other during the lifting operation, which may damage the screen.

Further, not only in the case of hanging a double screen, in a roll screen hanging a single screen, a take-up pipe capable of taking up or rewinding this screen, and a frame supporting the take-up pipe. Light leakage may occur between them. Therefore, as in Patent Documents 2 and 3, a light leakage preventing member for suppressing the light leakage is separately provided by a frame so as to be rotatably supported, and its tip end portion or the like is brought into contact with the winding pipe. There is also. However, when the light leakage prevention member is configured to contact the winding pipe in this manner, the light leakage prevention member may damage the screen due to winding or rewinding of the screen by the winding pipe. In addition, it is 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 in the vicinity of the opening of the weight member (weight bar) of the double screen, the lower end of the double screen can be folded back and smoothly moved. Although it can be configured, the weight member becomes large in size, and there is room for improvement in terms of designability.

In view of the above problems, it is an object of the present invention to provide a roll screen capable of maintaining the quality of the shielding material.

A roll screen according to an aspect of the present invention is a roll screen having a shielding material, and includes a winding pipe that suspends and supports the shielding material, a mounting frame that supports the winding pipe, and the winding device. The pipe has an operation pulley that hangs an endless operation code rotatably, and is pivotally supported by the mounting frame so as to be rotatable in response to an operation by the endless operation code. And a movable fin capable of blocking light leaking from a gap between the frame and the frame.

Further, a roll screen according to one aspect of the present invention is a roll screen having a shielding material, and a winding pipe that hangs and supports the shielding material so that the shielding material can be wound, a mounting frame that supports the winding pipe, and A movable fin capable of blocking light leaking from a gap between the winding pipe and the mounting frame, and fin covers provided at both ends of the movable fin in the left-right direction, respectively. To do.

Further, in the roll screen according to one aspect of the present invention, an operation unit that has an operation pulley that hangs an endless operation code rotatably on the winding pipe, and performs a pendulum operation when operated by the endless operation code. Further, the movable fin is provided with a detachable auxiliary member capable of adjusting a power point position by a pendulum operation of the operation unit.

Further, in the roll screen according to one aspect of the present invention, the auxiliary member is configured to be attachable to and detachable from an opening portion of a fin cover provided at each end portion of the movable fin in the left-right direction. Characterize.

Further, a roll screen according to one aspect of the present invention is a roll screen having a shielding material, and a winding pipe that hangs and supports the shielding material so that the shielding material can be wound, a mounting frame that supports the winding pipe, and The operation unit has an operation pulley that hangs an endless operation code rotatably on the winding pipe, and has an operation unit that performs a pendulum operation when operated by the endless operation code. The operation unit is asymmetric in the front-rear direction. A plurality of cord guide members capable of guiding the endless operation cord on the guide route are accommodated.

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

Further, in the roll screen according to one aspect of the present invention, the winding pipe hangs and supports one end of the screen formed by folding one screen by a weight member so that the mounting frame can support the other screen. Supporting the ends, a double shielding member is configured, the lower ends of the double shielding member are in non-contact with each other in a state where the weight member is at the lower limit position, and the upper end of the double shielding member is It is characterized in that they are in contact with each other or are closer than the lower end.

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

According to the present invention, the double shield member is reliably separated during the up-and-down operation, and the friction force of the double shield member is eliminated or relatively reduced, so that the shield member is not damaged. Further, when stationary, the gaps between the double shields can be close to or in close contact with each other, and the light shielding properties can be improved.

It is a front view showing a schematic structure of a roll screen of a 1st embodiment by the present invention. It is a side surface perspective view which shows the schematic structure of the roll screen of 1st Embodiment by this invention. FIG. 3 is an exploded perspective view showing a schematic configuration around an operation unit in the roll screen according to the first embodiment of the present invention. It is an exploded perspective view showing the detailed composition of the operation unit in the roll screen of a 1st embodiment by the present invention. (A), (b), (c) is operation|movement explanatory drawing of the operation unit in the roll screen of 1st Embodiment by this invention. (A), (b) is explanatory drawing of the operation unit in the roll screen of 1st Embodiment by this invention. (A), (b) is explanatory drawing explaining the left-right rearrangement of the operation unit in the roll screen of 1st Embodiment by this invention. (A), (b) is a disassembled perspective view explaining the movable fin in the roll screen of 1st Embodiment by this invention, and its perspective view. (A), (b) is a perspective view which shows 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 surface perspective view which shows schematic structure of the roll screen of 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 addition, 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 downward (or lower) according to the hanging direction of the screen 4, respectively. ), the left direction in the figure is defined as the left side of the roll screen 1, and the right direction in the figure 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 visible side is the front side (or the indoor side) and the opposite side is the rear side (or the outdoor side), and the roll screen 1 When referred to as the front-back direction, it means the direction perpendicular to the plane of the drawing in the front view of FIG.

[First Embodiment]
(overall structure)
First, the configuration of the roll screen 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view showing a schematic configuration of a roll screen 1 of a 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 with the upper end of a mounting frame 2 fixed to a mounting surface such as a ceiling surface via a bracket 8. Then, support members 2a and 2b are fixed to the left and right ends of the mounting frame 2, and a cylindrical winding pipe 9 is rotatably supported between the support members 2a and 2b by fixed shafts 11 extending from the support members 2a and 2b. To be done.

An operation unit 6 is provided at the right end of the winding pipe 9 and is rotatable relative to the winding pipe 9 and the support members 2a and 2b. An operation pulley 10 is housed in the operation unit 6, and an endless operation cord 3 hung around the operation pulley 10 is hung. Then, the winding pipe 9 can be rotated by operating the operation code 3. The operation cord 3 is composed of an endless ball chain consisting of a ball portion 3a and a chain portion 3b which are continuous at a predetermined pitch, and the surface of the operation pulley 10 has irregularities of a shape suitable for the ball portion 3a. Composed.

The take-up pipe 9 is attached to one side of the screen 4 and hung and supported so that it can be taken up. The screen 4 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 side end surface of the mounting frame 2 located above the winding pipe 9. As shown in FIG. 2, the fixing portion 22 can adjust the length of the screen 4 and detachably lock the end portion of the screen 4. A roller 15 rotatably supported by both ends of the weight bar 5 is inserted into a lower end portion of the screen 4 that is hung between the winding pipe 9 and the fixed portion 22. Thereby, 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 that hangs down the double screen 4, the roller 15 provided on the weight bar 5 can be configured to smoothly fold back and move the lower end portion of the double screen. As shown in FIG. 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 contact the screen 4 and adjust the opening width thereof. Further, as shown in FIG. 2, it is preferable that the guide member 5b has a rounded surface so as to reduce a rubbing noise with the screen 4. Thereby, it is possible to realize a smooth operation while avoiding an increase in the size of the weight bar 5. However, if, for example, the double screen 4 is made of a cloth of a chargeable material (for example, polyester) and the guide member 5b is also formed of a chargeable material (especially if the polarities that are charged are different), the screen 4 and the guide are guided. The contact (rubbing) with the member 5b may cause electrostatic triboelectric charging or peeling charging, and the screen 4 or the guide member 5b may be electrostatically charged. Such electrostatic charging causes, for example, dust in the air to be adsorbed, resulting in smooth operation thereof and variation in proximity and separation between the front and rear screens, which is a cause of impairing the design. Therefore, it is desirable that both the screen 4 and the guide member 5b are made of an antistatic material, but if one of them is made of an antistatic material, the generation of the static electricity can be suppressed. In particular, in consideration of increasing the degree of freedom of the material of the screen 4 used, it is desirable that the guide member 5b be formed of an antistatic material. Such an antistatic material may be an existing material that is moldable 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 pipe 3 is operated to rotate the winding pipe 9 in the screen winding direction, the weight bar 5 rises, and when the winding pipe 9 is rotated in the screen rewinding direction, the weight bar 5 descends.

Further, in the winding pipe 9, a spring motor for reducing the operating force when the screen 4 is wound up is accommodated on the left end side thereof, and a stopper device for preventing the screen 4 from falling due to its own weight is accommodated on the right end side thereof ( (Not shown).

In the screen 4, the transmissive portions 4b that partially transmit light and the light-shielding portions 4a that block light are alternately formed in a striped pattern, and the screen 4 is suspended and supported in a state of being double-laid. 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 transmissive portion 4b and the light shielding portion 4a, whereby the amount of light can be adjusted. The pitch at which the transmissive portions 4b that partially transmit light and the light shielding portions 4a that block 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, as will be described in detail later, as shown in FIG. 2, the operation unit 6 is provided so as to be rotatable relative to the winding pipe 9 and the supporting members 2a and 2b. When operating with the operation code 3, the pendulum is operated. The bottom of the mounting frame 2 is provided with a support portion 21 that supports a base shaft of the movable fin 7, which will be described in detail later. Preferably, the vertical length of the movable fin 7 is sufficient to close the gap between the mounting frame 2 and the winding 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 rotatable relative to the mounting frame 2 in the front-rear direction.

Further, as shown in FIG. 2, when the weight bar 4 is at the lower limit position, the lower ends of the double screens 4 are not in contact with each other, and the upper ends of the double screen 4 are in contact with each other, or Closer than the bottom edge. Then, when the pendulum operation of the operation unit 6 is in a non-actuated stationary state and the upper ends of the double screens 4 are in contact with or close to each other, the tips of the movable fins 7 are mounted obliquely above the winding pipe 9. It is configured to come into contact with the screen 4 on the side supported by the frame 2.

Then, according to the pendulum operation of the operation unit 6, the protruding piece 61 of the operation unit 6 presses the auxiliary member 71 of the fin cover 72 provided at the end portion of the movable fin 7 in the left-right direction, and thus the double screen. It operates so that the intervals of 4 are separated. The auxiliary member 71 is attachable to and detachable from the fin cover 72, and in order to adjust the force point position by the pendulum operation of the operation unit 6, the auxiliary member 71 is required for the pressing according to the length of the movable fin 7. The acting force can be changed. As described above, the movable fin 7, together with the fin cover 72 and the auxiliary member 71 thereof, is configured as a shielding member interval adjusting mechanism that operates so that the interval between the double screens 4 increases according to the pendulum operation of the operation unit 6. ..

That is, when the pendulum operation of the operation unit 6 is not performed, when the upper ends of the double screens 4 are always in contact with each other while the weight bar 4 is at the lower limit position, the double screens 4 are not always in contact with each other. In the stationary state, the winding by the winding pipe 9 is performed, and the screen 4 may become thick and come into contact. On the other hand, in the configuration according to the present invention, by causing the operation unit 6 to perform the pendulum operation, the double screens 4 operate so as to be separated from each other, so that damage to the screen 4 due to the contact can be suppressed. It is preferable that the operation unit 6 is in a stationary state in which the pendulum operation is inactive and the upper end of the double screen 4 is in contact with the operation unit 6 in the light shielding state because the shielding property can be improved.

In particular, the operation unit 6 has the first and second operation unit members 6a and 6b that accommodate and support the operation pulley 10 on which the endless operation cord 3 is hung so as to be relatively rotatable by sandwiching the operation pulley 10 from both sides thereof. It is provided. Further, between the first and second operation unit members 6a and 6b, a first cord guide member 6c that guides the operation cord 3 that hangs from the operation pulley 10 for winding, and hangs from the operation pulley 10 for rewinding. The second cord guide member 6d for guiding the operation cord 3 is provided. Then, the first and second cord guide members 6c and 6d use the cord guide wall 64 located below between the first and second operation unit members 6a and 6b as the first cord guide portions, respectively. A guide route and a guide route as a second cord guide portion are formed, and the operation cords are different from each other so that the endless operation cord 3 is guided from the hanging position to the operation pulley 10 to the outside of the vertical line. It is supposed to guide 3.

(Operation unit and shield spacing adjustment mechanism)
Hereinafter, with reference to FIGS. 3 and 4, a specific configuration of the operation unit 6 and its periphery will be described. FIG. 3 is an exploded perspective view showing a schematic configuration around the operation unit 6 in the roll screen according to the first embodiment of 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 that supports the base shaft of the movable fin 7 is provided at the bottom of the mounting frame 2. Therefore, the movable fins 7 are provided over substantially the entire length of the attachment frame 2 in the longitudinal direction (left and right rear), and are supported so as to be rotatable relative to the attachment frame 2 in the front-rear direction.

The operation unit 6 accommodates the operation pulley 10 on which the endless operation code 3 is hung, and the first and second code guide members 6c and 6d for guiding the operation code 3 hanging from the operation pulley 10, inside the operation pulley. It is composed of two operation unit members 6a and 6b that are sandwiched so as to be rotatable relative to 10 and are integrated. The two operation unit members 6a and 6b can be fixed with a mounting screw 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. In addition, a concavo-convex for hanging the operation cord 3 is formed on the right end side of the operation pulley 10, and a take-up coil is formed on the left end side of the operation pulley 10 through a flange whose diameter is 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 winding 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 winding pipe 9 and the fixing portion 22 and stretched based on the weight of the weight bar 5.

Then, the first and second cord guide members 6c, 6d utilize the cord guide wall 64 located between the first and second operation unit members 6a, 6b to perform an endless operation during non-pendulum operation. The operation code 3 is guided in different guide routes so that the code 3 is guided from the hanging position with respect to the operation pulley 10 to the outside of the vertical line. In this example, the first and second cord guide members 6c and 6d are configured to be attachable to and detachable from the first and second operation unit members 6a and 6b. This is because the same member can be used to change the layout when the right operation is arranged on the right side and the left operation is arranged when the operation unit 6 is arranged on the left side.

In this way, the operation unit 6 is provided so as to be rotatable relative to the winding pipe 9 and the support members 2a and 2b, so that the pendulum operation is performed when the operation cord 3 is operated.

Then, according to the pendulum operation of the operation unit 6, the protruding piece 61 of the operation unit 6 presses the auxiliary member 71 of the fin cover 72 provided at the end portion of the movable fin 7 in the left-right direction, and thus the double screen. It operates so that the intervals of 4 are separated. Although details of the auxiliary member 71 will be described later, the auxiliary member 71 is detachable from the fin cover 72. This makes it possible to adjust the force point position by the pendulum motion of the operation unit 6 and change the acting force required for the pressing in accordance with the length of the movable fin 7. Further, when the operation unit 6 is arranged on the right side as shown in the figure and configured by the right operation, the auxiliary member 71 is attachable 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 it is configured by the 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, together with the fin cover 72 and the auxiliary member 71 thereof, is configured as a shielding member interval adjusting mechanism that operates so that the interval between the double screens 4 increases according to the pendulum operation of the operation unit 6. It

Next, the detailed structure of the first and second operation unit members 6a and 6b and the first and second cord guide members 6c and 6d that form 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 each formed of a substantially plate member having a substantially inverted drop-shaped outer shape, and accommodate the operation pulley 10 inside and are relatively rotatable. It is sandwiched between and engaged so as to be supported. For this reason, the first and second operation unit members 6a, 6b are provided with substantially circular opening support portions 65f, 66f in accordance with the outer diameters of the operation pulleys 10 that they support. That is, a protrusion protruding in a cylindrical shape is formed on the right end side of the operation pulley 10 (not shown), and the first operation unit member 6a has the protrusion of the protrusion to engage with this protrusion. The opening support portion 65f is formed in a round hole shape slightly larger than the outer diameter. The second operation unit member 6b has a diameter slightly larger than the outer diameter of the flange so that the second operation unit member 6b engages with the flange having the 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 opening support portion 66f is formed in a round hole shape.

Then, above the first and second operation unit members 6a and 6b, in a state where the pendulum operation is inactive (stationary state), above the horizontal line passing through the axial center of the operation pulley 10 and integrated with each other, Cord cover portions 62 and 63 are formed so as to project in the engaging direction so as to form a semicircular cross-sectional shape. Then, claw portions 62a are formed at two locations on the inner wall of the cord cover portion 62, and fitting holes 63a are provided at two locations in the cord cover portion 63 so as to be fittable with the claw portions 62a. The cover portions 62 and 63 are overlapped with each other and integrally fitted to each other to form a cord cover, which prevents the hanging operation cord 3 from slipping off from the operation pulley 10.

A protruding piece 61 having a substantially inverted trapezoidal shape is formed on the top of the first operation unit member 6a, and a substantially rectangular recessed groove 61a having a stepwise recess is formed on the protruding piece 61. Then, a convex piece 63b that projects in a substantially rectangular step shape is formed on the top of the second operation unit member 6b so as to be engaged with and buried in the concave groove 61a.

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

Further, the screw hole 65d provided below the first operation unit member 6a and the screw hole 66d provided below the cord 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 engaging the fixing screws 60 (see FIG. 3) in order to engage and fix the members.

Then, the first operating unit member 6a is formed with two supporting rods 65b protruding in the engaging direction to respectively support the first and second cord guiding members 6c and 6d, and each supporting rod 65b is 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 at two places in the second operation unit member 6b. There is.

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

The first cord guide member 6c has a main body 67 in the shape of a substantially triangular prism having a wide width as shown in the drawing, and a through hole 67b penetrating in the column direction of the support rod 65b so that the support rod 65b can be inserted therethrough and engaging grooves 65c, 66c. Projecting portions 67c that project symmetrically are provided on both sides of the substantially triangular surface so as to be engageable with.

As shown in the drawing, the second cord guide member 6d has a main body 68 that is vertically long and narrow and has a substantially triangular prism shape, and has a through hole 68b penetrating through the support rod 65b in the column direction and an engaging groove 65a. , 66a are provided with projecting portions 68a which symmetrically project on both sides of the substantially triangular surface.

Therefore, the first and second cord guide members 6c and 6d can be mounted by changing their positions in the front and back with respect to the first and second operation unit members 6a and 6b.

Then, the first and second cord guide members 6c and 6d operate the endless operation cord 3 by using the cord guide wall 64 located below between the first and second operation unit members 6a and 6b. The operation cord 3 is guided along different guide routes so that the operation cord 3 is guided from the hanging position on the pulley 10 to the outside of 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 rotatable relative 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. When the respective units are stationary, a torque acts on the operation unit 6 by its own weight (the weight of the screen 4, the weight bar 5 and the like) in the direction in which the front and rear screens 4 come into close contact with each other. As a result, the operation cord 3 hangs down based on the first and second cord guide members 6c and 6d.

In this stationary state, when the weight bar 5 is at the lower limit position, or when the screen 4 is wound around the winding pipe 9 at a predetermined winding diameter at the intermediate position and the upper limit position of the weight bar 5, The distance between the double screens 4 is stabilized at a position close to or close to each other (a distance d1 between the double screens 4). Therefore, it is possible to shift the transmissive portion 4b and the light shielding portion 4a of the double screen 4 to be in a semi-transmissive state, or to make the transmissive portion 4b and the light shielding portion 4a of the screen 4 coincide with each other to be in a light shielding state, In particular, it is possible to improve the light blocking effect when the light blocking 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 so that it can be adjusted, for example, when the weight bar 5 is at the lower limit position, it is in a shielded state. The structure makes it easy to adjust the length of the screen 4. The movable fin 7 is formed of a metal material such as aluminum or a non-translucent resin material to block external light that may enter through the gap between the mounting frame 2 and the winding pipe 9. You can also

Next, referring to FIG. 5B, for example, when the operation cord 3 is operated to raise the weight bar 5 from the state where the weight bar 5 is at the lower limit position or the intermediate position, the screen 4 is wound around the winding pipe 9. Taken. At this time, the operation cord 3 comes into contact with the second cord guide member 6d on the indoor side and a clockwise torque is applied to the operation unit 6, whereby the operation unit 6 performs a pendulum operation, and the operation unit member 6a has a protruding piece 61 side. The ends rotate the movable fins 7 and press the screen 4 on the outdoor side. Therefore, the interval d2 when operating the double screen 4 is configured to be larger than the interval d1 when the screen is stationary. Therefore, the double screens 4 do not rub during the ascending operation, or even if they rub, they partially move while moving up or down, or the frictional force is reduced so that they move relative to each other.

Similarly, referring to FIG. 5C, when the operation cord 3 is operated to lower the weight bar 5 from the state where the weight bar 5 is at the intermediate position or the upper limit position, for example, the weight bar 5 is wound around the winding 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, whereby the operation unit 6 performs a pendulum operation, 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 operating the double screen 4 is configured to be larger than the interval d1 when the screen is stationary. Therefore, the double screens 4 do not rub during the descending operation, or even if they do rub, they move partly while moving up or down, or because the frictional force is reduced and they move relative to each other, there is no risk of damaging the screen 4.

Even if friction occurs in a part near the upper limit where the cloth of the screen 4 is wound and thickened, the frictional force acts in the direction of being reduced.

Further, at the time of the raising operation, the guide path slightly larger than the outer shape of the ball portion 3a of the operation cord 3 between the second cord guide member 6d on the indoor side and the cord guide wall 64 has at least two balls continuous at a predetermined pitch. Since the portion 3a is formed so as to contact the second cord guide member 6d, rattling in the operation unit 6 during operation of the operation cord 3 is suppressed, and the ball portion 3a interferes with the second cord guide member 6d. It is possible to reduce the operation sound that can be generated in. Further, at the time of the descending operation, at least two ball portions 3a which are continuous at a predetermined pitch are formed so as to contact the first cord guide member 6c, and therefore, there may be interference between the ball portion 3a and the first cord guide member 6c. The operation sound can be reduced. Further, since the guide path which is sufficiently larger than the outer shape of the ball portion 3a of the operation cord 3 is secured between the first cord guide member 6c on the outdoor side and the cord guide wall 64, the pendulum operation in the opposite direction and the interference are prevented. The operation sound that can occur in is difficult to generate.

That is, in the operation unit 6 according to the present invention, as shown by broken lines A and B in FIG. 6A, the endless operation cord 3 is mounted on the operation pulley 10 during the non-pendulum operation (at rest). Since the operation cords 3 are configured to guide from the vertical line to the outside of the vertical line and are guided by different guide paths, the vertical operation cords 3 are not limited to the case where the endless operation cord 3 is pulled forward, Even if it is pulled downward, the pendulum will move reliably, improving its operability. Further, as shown by the opening angle θ in FIG. 6B, the outlet of the operation cord 3 of the operation means that is hung down to the outside of the room during the non-pendulum operation (at rest) passes through the axial center of the operation pulley 10. Since the opening is made from below on the horizontal line, it is possible to suppress the pendulum operation in the opposite direction by the operation cord 3 at the time of the descending operation in which it is easy to pull in the outside of the room. 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 either one of the first and second operation unit members 6a and 6b, but they are configured to be removable. Thus, when the operation unit 6 is arranged on the left side as shown in FIG. 7A, the operation unit 6 is arranged by the left operation, and as shown in FIG. 7B, the operation unit 6 is arranged on the right side by the right operation. In any case, the first cord guide member 6c can be attached to the outside of the room and the second cord guide member 6d can be attached to the inside of the room, so that the same member can be switched. By adopting such a member configuration that enables the layout change, it is possible to reduce the component management load of the operation unit 6 and to reduce the cost.

Further, the movable fin 7 is provided with a separate member for the auxiliary member 71 with respect to the fin cover 72 provided at the end portion in the left-right direction, so that the presence or absence of the auxiliary member 71 and the shape of the auxiliary member 71. It is possible to adjust the power point position by the pendulum motion of the operation unit 6 by the change, and it is possible to enhance the adaptability and commonality of the roll screen to various forms. For example, the operating force required to press the pendulum motion of the operating unit 6 may be changed according to the vertical length of the movable fin 7 to reduce the operating force.

Further, the movable fin 7 may be one in which the fin cover 72 and the auxiliary member 71 are integrated, but the shape of the fin cover 72 installed at the left and right ends of the fin cover 72 is made common, and the auxiliary member 71 is formed. As a separate member, it is preferable to be configured to be attachable to and detachable from any of the fin covers 72 provided at the left and right ends thereof. As a result, the component management load on 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 using the auxiliary member 71 as a separate member. FIG. 8A is an exploded perspective view illustrating the movable fin 7, and FIG. 8B is a perspective view showing a state in which the movable fin 7 is assembled to the fin cover 72 as a separate member. Here, although the fin cover 72 and the auxiliary member 71 made of synthetic resin are used as the movable fin 7 made of aluminum, the movable fin 7 may be made of synthetic resin.

As shown in FIG. 8A, the fin cover 72 is configured to be attachable to both left and right ends of the movable fin 7, and the auxiliary member 71 can be integrated as a separate member by fitting. .. The fin cover 72 is formed of a main body plate 72b having a substantially V-shaped cross section and having a substantially rhombic plate piece 72a on its side. The substantially rhombic plate piece 72a has a screw hole 72c formed substantially in the center thereof and can cover one end of the movable fin 7. Further, a notch 72d is provided at the top of the main body plate 72b, so that 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 the 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 mounted so as to expose the contacted portion 71a of the auxiliary member 71 having a substantially V-shaped cross section. There is. The auxiliary member 71 is formed with a bifurcated leg portion 71b and is elastically deformable in the vertical direction. The leg 71b is formed with an abutting portion 71c projecting in the left-right direction, and the abutting portion 71c abuts the inner wall 72f around the opening 72e of the fin cover 72 to be positioned. Then, in order to hold the fin cover 72 in this positioned state, the fin cover 72 is provided with claw portions 72g at the upper and lower portions, which can lock the leg portion 71b of the auxiliary member 71 elastically deformed and attached. Has been. FIG. 8B shows a state where the auxiliary member 71 is attached to the movable fin 7 as a separate member to the fin cover 72 in this manner.

Therefore, in the movable fin 7, the shape of the fin cover 72 provided at the end portion in the left-right direction is made common, and the auxiliary member 71 can be configured to be attachable to and detachable from any fin cover 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 does not need to be particularly limited. However, for the purpose of reducing the component management load of the fin cover 72 and the auxiliary member 71, and in turn, reducing the cost, for example, as shown in FIG. 9A, the form of the movable fin 7 described above (vertical length a). In addition to the above, a form of the movable fin 7 as shown in FIG. 9B (a vertical length b<a) is also prepared, and various roll screens 1 can be manufactured by adding and removing the auxiliary member 71. It can be operated as applicable. In addition, in the form of the movable fin 7 as shown in FIG. 9B, an example is shown in which the cross-sectional shape is relatively large bent, but the invention is not limited to this.

As described above, in the roll screen 1 of the present embodiment, the double screen 4 is reliably separated during the lifting operation, and the friction force of the double screen is eliminated or reduced, so that the double screen 4 moves relatively. There is no danger of damaging the. When the screen is stationary, the distance between the double screens 4 can be close to or close to each other. 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 aligned with each other to be in the light-shielding state It is possible to improve the light-shielding property.

In particular, the first and second cord guide members 6c and 6d use the cord guide wall 64 located below between the first and second operation unit members 6a and 6b to perform non-pendulum operation (at rest). Further, the operability can be improved by guiding the operation cord 3 in different guide routes so that the endless operation cord 3 is guided from the hanging position on the operation pulley 10 to the outside of the vertical line. it can.

Further, the operating unit 6 is configured so that the outlet of the operating cord 3 of the operating means that is hung outside the room is opened below the horizontal line passing through the axial center of the operating pulley 10 during non-pendulum operation (while stationary). Thus, the pendulum motion in the opposite direction can be suppressed, and the operation sound that may be generated due to the interference between the operation pulley 10 and the operation unit 6 at that time can be suppressed.

Further, the movable fin 7 can adjust the force point position by the pendulum motion 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 motion according to the vertical length thereof. With this configuration, the operating force can be reduced.

In addition, by configuring the operation unit 6 and the movable fin 7 with a member that can be switched between right-side operation and left-side operation, it is possible to reduce the part management burden and, in the end, reduce the cost.

Further, the movable fin 7 has a length sufficient to close the gap between the mounting frame 2 and the winding 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 according to the second embodiment of the present invention will be described with reference to FIG. In FIG. 10, the same components as those in the first embodiment are designated by the same reference numerals.

In the first embodiment, the example in which the single screen 4 is folded back to form the double screen 4 has been described, but the gap between the single screen 4, the mounting frame 2 and the winding pipe 9 is closed. By using the light leakage prevention member 4S having a sufficient length, it is possible to form a double shielding material, which will be described as a second embodiment.

For example, when the movable fin 7 is made of translucent synthetic resin, or when it is made of a metal material to have an opening for weight reduction, or when the mounting frame 2 and the winding pipe 9 are provided. There is a possibility that light leakage may occur from the gap between the mounting frame 2 and the winding pipe 9 when the length is insufficient to close the gap between the two. At this time, a light leakage prevention member 4S having a length sufficient to close the gap between the mounting frame 2 and the winding pipe 9 is suspended from the fixing portion 22 of the mounting frame 2 as shown in FIG. 10, for example. Therefore, it is possible to enhance the light shielding property.

Then, as shown in FIG. 10, even in the case where the single screen 4 and the light leakage prevention member 4S form a double shielding material, as described in the first embodiment, the operation unit 6 and the movable fin 7 are provided. With this configuration, when the screen 4 is moved up and down, the screen 4 and the light leakage prevention member 4S are reliably separated from each other, and the frictional force of the double shielding material is eliminated or reduced, and the screen 4 is moved relatively. It is possible to eliminate the risk of damaging the light leakage prevention member 4S. Further, when stationary, the screen 4 and the light leakage prevention member 4S can be close to or in close contact with each other, and the light shielding property thereof can be improved. Further, it is possible to prevent the light leakage prevention member 4S formed of a cloth or the like from rolling up when the screen 4 is moved up and down.

[Other Embodiments]
As a modified example of the first embodiment or the second embodiment, for example, a winding pipe 9 and a mounting frame 2 for suspending and supporting one screen 4 without using a 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 shield the leakage light from the gap between them.

Therefore, in each of the above-described embodiments, not only the case where the double screen 4 is suspended, but also the roll screen in which the single screen 4 is suspended suppresses light leakage between the winding pipe 9 and the mounting frame 2. When the movable fin 7 is provided as described above, the pendulum operation of the operation unit 6 prevents the screen 4 and the movable fin 7 from contacting each other when the screen 4 is wound or unwound by the winding pipe 9, and thus the movable fin 7 is prevented. With 7, it is possible to eliminate the risk of damaging the screen 4.

Further, in a stationary state in which the pendulum operation is inactive, the operation unit 6 is configured to guide the endless operation cord 3 from the hanging position with respect to the operation pulley 10 to the outside of the plumb line on the vertical line. Since the operation is suppressed, even if light leakage may occur due to, for example, a reverse pendulum operation, it can be more reliably prevented.

Further, regarding each of the above-described embodiments, by providing the fin covers 72 at both ends of the movable fin 7 in the left-right direction, for example, both ends of the movable fin 7 that may be formed by edge cutting when the movable fin 7 is formed 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 in accordance with the pendulum operation of the operation unit 6 can be enhanced.

Further, as described above, the movable fin 7 is provided with the detachable auxiliary member 71 capable of adjusting the power point position by the pendulum operation of the operation unit 6, so that the movable fin 7 can be used for various types of roll screens. 7 and the fin cover 72 can be used as a common member, which contributes to cost reduction. In particular, the auxiliary member 71 is configured to be attachable to and detachable from the opening 72e of the fin cover 72 so that the convenience as a common member can be improved.

In addition, in the example of the first embodiment described above, as the double screen 4 in which one screen is folded back, the transmissive portions 4b that partially transmit light and the light shielding portions 4a that block light are alternately arranged in a striped pattern. Although an example in which the transparent portion 4b and the light shielding portion 4a are not alternately formed, for example, a polka dot pattern is formed, a double screen is used. It is effective in producing an effect.

Further, the operation unit 6 and the movable fins 7 may have various shapes, such as the shape of the fixed portion 22 of the mounting frame 2 as long as the effects and advantages of the present invention are produced. Further, in order to surely separate the screen 4 at the time of operation, a biasing means such as a spring may be provided to assist the pendulum operation in which the screen 4 moves in the separating direction.

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

According to the present invention, since the double shielding material can be reliably separated during the lifting operation, it is useful for a roll screen using the double shielding material.

DESCRIPTION OF SYMBOLS 1 roll screen 2 mounting frames 2a, 2b support member 3 operation code 4 screen 4a light-shielding portion 4b transparent portion 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 portion 22 fixed portion 61 projecting piece 71 of operation unit 71 auxiliary member 72 fin cover

Claims (8)

A roll screen having a shielding material,
A winding pipe that suspends and supports the shielding material so that it can be wound,
A mounting frame for supporting the winding pipe,
The winding pipe has an operation pulley that rotatably hangs an endless operation code, and is rotatably supported by the mounting frame in response to an operation by the endless operation code. And a movable fin capable of blocking light leaking from a gap between the mounting frame and the mounting frame. A roll screen having a shielding material,
A winding pipe that suspends and supports the shielding material so that it can be wound,
A mounting frame for supporting the winding pipe,
A movable fin capable of blocking light leaking from a gap between the winding pipe and the mounting frame;
A roll screen, wherein fin covers are provided on both ends of the movable fin in the left-right direction. An operation unit is provided which hangs an endless operation cord rotatably on the winding pipe, and further comprises an operation unit for performing a pendulum operation when operated by the endless operation code,
The roll screen according to claim 2, wherein the movable fin is provided with an attachable/detachable auxiliary member capable of adjusting a power point position by a pendulum operation of the operation unit. The roll screen according to claim 3, wherein the auxiliary member is configured to be attachable/detachable by being fitted into openings of fin covers provided at both ends of the movable fin in the left-right direction. .. A roll screen having a shielding material,
A winding pipe that suspends and supports the shielding material so that it can be wound,
A mounting frame for supporting the winding pipe,
An operation unit having an endless operation code for rotatably rotating the winding pipe, and an operation unit for performing a pendulum operation when operated by the endless operation code,
The roll screen, wherein the operation unit accommodates a plurality of cord guide members capable of guiding the endless operation cord along an asymmetric guide path in the front-rear direction. The plurality of cord guide members are configured as two cord guide members,
The roll screen according to claim 5, wherein the operation unit includes two members capable of accommodating the two cord guide members. The take-up pipe suspends and supports one end of the screen, which is formed by folding one screen back by a weight member, and the mounting frame supports the other end of the screen. Composed,
The lower ends of the double shielding members are not in contact with each other when the weight member is in the lower limit position, and the upper ends of the double shielding members are in contact with each other or closer to 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, which is formed by folding one screen back by a weight member, and the mounting frame supports the other end of the screen. Composed,
The tip of the movable fin is supported by the mounting frame diagonally above the winding pipe when the upper ends of the double shields come into contact with or come close to each other while the pendulum motion of the operation unit is inactive. The roll screen according to any one of claims 1 to 4, wherein the roll screen is configured to come into contact with the shielding material.