JP7018802B2 - Cloaking device - Google Patents

Description

The present invention relates to a shielding device in which a shielding material is suspended and supported from a head box by using an elevating cord.

Conventionally, there are horizontal blinds, roman shades, pleated screens, etc. as a shielding device in which a shielding material is suspended and supported from a head box by using an elevating cord. And, as a kind of shielding device, a honeycomb that can be folded using the fabric separately from the pleated screen that hangs from the head box using one piece of fabric (pleated fabric) that can be folded in a zigzag shape in the vertical direction as a shielding material. A honeycomb-shaped fabric is formed by forming a tubular body (hereinafter referred to as "cell"), and a large number of the cells are connected in the vertical direction, and the foldable honeycomb-shaped fabric can be used as a shielding material to move up and down from the head box. There is a honeycomb screen that is suspended and supported.

Then, there is known a honeycomb screen in which a plurality of honeycomb-shaped fabrics are vertically connected and supported by hanging from a head box (see, for example, Patent Document 1).

In the technique of Patent Document 1, the first honeycomb-shaped fabric is hung from the head box so that the intermediate rail provided at the lower end of the first honeycomb-shaped fabric can be raised and lowered by the first elevating cord, and the second intermediate rail is used to raise and lower the intermediate rail. It is disclosed that the bottom rail provided at the lower end of the second honeycomb-shaped fabric can be raised and lowered by the second elevating cord by suspending the honeycomb-shaped dough.

Then, in the technique of Patent Document 1, the first elevating cord for raising and lowering the first honeycomb-shaped dough is guided to a cord stopper provided at one end of the head box, and is guided from the head box via the cord stopper. It is derived to the outside and can be directly pulled. On the other hand, the second elevating cord for elevating and lowering the second honeycomb-shaped dough is wound around a drum attached so that the upper end thereof rotates integrally with a rotating shaft bearing in the head box, and the rotating shaft is wound. Is driven to rotate via an operation string hanging from one end of the head box.

Japanese Unexamined Patent Publication No. 2006-138108

First, as a request for a shielding device, a technique for enhancing heat insulating property and light shielding property is desired. Therefore, the honeycomb screen, which is configured as a kind of shielding device, allows the honeycomb-shaped fabric formed by connecting a large number of cells in the vertical direction to be raised and lowered, so that the honeycomb-shaped fabric is lowered to provide a shielding state. Occasionally, in the front-back direction, it is almost the same as a double cloth suspended, and the space provided by each cell is maintained. For this reason, the pleated fabric is hung from the head box by adjusting the thickness, hardness, light-shielding property (or translucency) of the honeycomb-shaped fabric, and in some cases, attaching aluminum foil or the like to the inside of each cell. It is possible to improve the heat insulating property and the light blocking property as compared with the general pleated screen to be lowered.

On the other hand, in the shielding device, the shielding material is configured to move up and down by the direct pulling operation of the lifting cord led out to the outside of the head box, and the code code stopper that locks the movement of the lifting cord by the direct pulling operation is released. When the shielding material is lowered by its own weight, the conventional technique has a problem that noise is generated from the shielding material. In particular, the honeycomb screen has a problem that a honeycomb-shaped cloth (a rustling sound presumed to be caused by one or more factors of a change in air pressure in a cell, static electricity, and hardness of the cloth) is generated.

Further, in the shielding device, in order to raise and lower the shielding material with the elevating cord, an insertion hole or a notch is provided in the shielding material, and the elevating cord is inserted through the insertion hole or the notch. Further, in order to enhance the heat insulating property and the light blocking property, it is preferable that the insertion hole and the notch have a smaller diameter. For example, in order to raise and lower the honeycomb-shaped fabric with the elevating cord, an insertion hole is provided in the partition wall formed inside the cell, and the elevating cord is inserted through the insertion hole. In order to increase the diameter, it is preferable that the insertion hole has a smaller diameter.

However, in the shielding device, the honeycomb-shaped fabric is generally heavier than the pleated fabric, and in the conventional technique, the weight of the honeycomb-shaped fabric is generally lowered at a faster speed than that during the ascending operation. If the notch has a small diameter, there is a problem that the lifting cord is worn and the quality is impaired.

On the other hand, in the case of a direct pulling operation of the elevating cord in the shielding device, a technique for preventing the collision noise when the shielding material vigorously drops by its own weight and the bottom rail at the lower end of the honeycomb-shaped fabric collides with the floor surface is also desired. ..

In view of the above-mentioned problems, the present invention raises and lowers the shielding material suspended from the head box by using the elevating cord to reduce the noise from the shielding material related to the self-weight drop of the shielding material, or improve the quality, or the present invention. It is an object of the present invention to provide a shielding device capable of preventing a collision noise when a bottom rail at the lower end of a shielding material collides with a floor surface.

The shielding device of one aspect according to the present invention is a shielding device that raises and lowers a shielding material suspended from a headbox by a direct pulling operation of an elevating cord, and the shielding device is said to have a lowering speed of the shielding material to a predetermined value or less. A braking device that brakes the movement of the elevating cord, and a fabric retainer that suspends the shielding material and can support the bottom of the braking device so as to suppress vertical fluctuation of the braking device.
It is characterized by having.

Further, in the shielding device of one aspect according to the present invention, the shielding material is characterized by being made of a foldable honeycomb-shaped fabric.

Further, in the shielding device of one aspect according to the present invention, one end of the elevating cord is covered from the head box through the inside of the shielding material and attached to the hanging rail, and the other end of the elevating cord is said. It is characterized in that it is derived from the headbox via a braking device so that it can be directly pulled.

Further, in the shielding device of one aspect according to the present invention, the shielding device has a connecting portion for directly connecting the end portion of the elevating cord hanging from the head box to the operation cord via the braking device, and the connection to the head box. It is characterized in that the range in which the descent speed of the shielding material is braked to a predetermined value or less is regulated by the contact / non-contact of the portions.

Further, in the shielding device of one aspect according to the present invention, the braking device is further provided with a code guide for introducing / deriving the elevating cord.

Further, in the shielding device of one aspect according to the present invention, the elevating cord is composed of a plurality of elevating cords, and the code guide has a code guiding means for separately guiding the elevating cords when introducing or deriving the plurality of elevating cords. It is a feature.

Further, in the shielding device of one aspect according to the present invention, the code guide has a fixing means for fixing and holding the braking device, and the code guide in a state where the braking device is fixed and held in the head box. An opening for accommodating the head box is provided on the lower surface of the head box.

Further, in the shielding device of one aspect according to the present invention, the opening is characterized by having a shape that engages with the front-rear and left-right planar shapes at the bottom of the cord guide.

Further, in the shielding device of one aspect according to the present invention, a fixing portion for engaging with and fixing the opening is provided on the side wall of either one of the front, back, left and right, or both of the bottom of the cord guide. It is characterized by that.

Further, in the shielding device of one aspect according to the present invention, the braking device includes a movable pulley that causes movement resistance to the elevating cord when the shielding material is lowered and relaxes the movement resistance when the shielding material is raised. It is characterized by that.

Further, in the shielding device of one aspect according to the present invention, one end of the elevating cord is covered from the head box through the inside of the shielding material and attached to the hanging rail, and the other end of the elevating cord is said. The rail is provided with a height adjusting device that can be directly pulled out from the headbox via a braking device and that can adjust the height of the rail by adjusting the length of the elevating cord. It is characterized by that.

Further, the shielding device of one aspect according to the present invention is characterized in that a cushioning material is provided on the lower surface of the rail.

According to the present invention, in one aspect of the shielding device, it is possible to reduce the noise from the shielding material related to the self-weight drop of the shielding material, or it is possible to suppress dust due to wear of the elevating cord and improve the quality. Further, according to the present invention, in one aspect of the shielding device, it is possible to prevent a collision noise when the bottom rail at the lower end of the shielding material collides with the floor surface. Further, according to the present invention, in one aspect of the shielding device, it is possible to improve the design by concealing the elevating cord so that it cannot be seen at least from the front view.

(A) is a front view showing a schematic configuration of a honeycomb screen as a shielding device of one embodiment according to the present invention, and (b) is a perspective side view thereof. It is a partial plan view which shows the schematic structure of the honeycomb screen as the shielding device of one Embodiment by this invention. It is a perspective view of the braking device and the cord guide of one Example in the honeycomb screen as the shielding device of one Embodiment by this invention. (A), (b), (c), and (d) are perspective views, plan views, and A showing a schematic configuration of a code guide of an embodiment in a honeycomb screen as a shielding device according to an embodiment of the present invention, respectively. It is a side view and the B side view. It is an exploded perspective view which shows the fixing method of the braking device and the cord guide of one Example in the honeycomb screen as the shielding device of one Embodiment by this invention. (A) and (b) are a front view and a side sectional view showing the schematic structure which concerns on the braking device and the code guide of one Example in the honeycomb screen as the shielding device of one Embodiment by this invention, respectively. It is an exploded perspective view which shows the schematic structure of the braking device of one Example in the honeycomb screen as the shielding device of one Embodiment by this invention. (A) and (b) are partial plan views schematically showing the operation of the braking device of one embodiment in the honeycomb screen as the shielding device of one embodiment of the present invention, respectively. It is a perspective plan view of the gear mechanism in the braking device of one Example in the honeycomb screen as the shielding device of one Embodiment by this invention. It is a perspective view which shows the schematic structure of the height adjustment device of one Example in the honeycomb screen as the shielding device of one Embodiment by this invention. (A) to (f) are a perspective view, a top view, a bottom view, and a side surface showing a schematic configuration of a holding member of the height adjusting device of the embodiment in the honeycomb screen as the shielding device of the embodiment according to the present invention, respectively. It is a figure, AA sectional view, and BB sectional view. (A) and (b) are a perspective view and a front view showing a schematic configuration of a rotating member of the height adjusting device of one embodiment in a honeycomb screen as a shielding device of one embodiment according to the present invention, respectively. (A) to (f) are perspective views showing the assembling process of the height adjusting device of one embodiment in the honeycomb screen as the shielding device of one embodiment of the present invention, respectively. It is a front view which shows the schematic structure of the honeycomb screen as the shielding device of another embodiment by this invention. (A) and (b) are a front view and a partial side view showing a schematic configuration of a pleated screen as a shielding device according to another embodiment of the present invention, respectively. (A) and (b) are a front view showing a schematic configuration of a horizontal blind as a shielding device according to another embodiment of the present invention, and a side view showing a part thereof in a cross section.

Hereinafter, a honeycomb screen as a shielding device according to an embodiment of 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 honeycomb screen shown in FIG. 1, the upper side in the drawing and the lower side in the drawing are defined as the upward direction (or the upper side) and the lower direction (or the lower side), respectively, and the left direction in the drawing is the honeycomb. The left side of the screen and the right direction in the drawing are defined as the right side of the honeycomb screen. Further, the side on which the front view of FIG. 1 is visually recognized is the front side (indoor side), and the opposite side is the rear side (outdoor side).

[Overall configuration of honeycomb screen as a shielding device of one embodiment]
A schematic configuration of a honeycomb screen as a shielding device according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1A is a front view showing a schematic configuration of a honeycomb screen as a shielding device according to an embodiment of the present invention, and FIG. 1B is a perspective side view thereof. Further, FIG. 2 is a partial plan view showing a schematic configuration of a honeycomb screen as a shielding device according to an embodiment of the present invention.

In the honeycomb screens shown in FIGS. 1 and 2, the foldable honeycomb-shaped fabric 2 is suspended and supported from the head box 1 by using the fabric retainer 12, and the lower end of the honeycomb-shaped fabric 2 holds the fabric retainer 13. It is attached to the upper surface of the bottom rail 7 by using.

The honeycomb-shaped fabric 2 constitutes a cell 2N as a foldable honeycomb-shaped cylinder, and is formed by connecting a large number of the cells 2N in the vertical direction. Each cell 2N is formed by using the dough, the front dough portion 2a and the back dough portion 2c, and the partition wall portion 2c that vertically partitions the front dough portion 2a and the rear dough portion 2c. Then, when the honeycomb-shaped fabric 2 is lowered to be in a shielded state, it is almost the same as the one in which the double fabric is suspended in the front-rear direction, and the space provided by each cell 2N is maintained. Therefore, the thickness and hardness of the honeycomb-shaped fabric 2 can be adjusted, the light-shielding fabric can be used, the amount of external light taken in can be adjusted by using the translucent fabric, and in some cases, aluminum can be contained in each cell 2N. By attaching a foil or the like, the heat insulating property and the light shielding property can be improved.

Further, a plurality of elevating cords (two elevating cords C1 and C2 in this example) are hung from the head box 1 to form an insertion hole 2d formed in the center of each partition wall portion 2c of the honeycomb-shaped fabric 2 in the front-rear direction. After that, the lower ends of the elevating cords C1 and C2 are attached to the bottom rail 7.

Although the details will be described later, height adjusting devices 21 are provided at the lower ends of the elevating cords C1 and C2. The height adjusting device 21 has a holding member 23 that holds each of the elevating cords C1 and C2, and is attached to the holding member 23 so as to be relatively rotatable, and each of the elevating cords C1 and C2 is wound and fixed to adjust the length. The rotating member 25 is provided with a rotating member 25, and the rotating member 25 can be rotated from the lower surface of the bottom rail 7 by a rotating jig such as a flat-blade screwdriver or a coin. The height and inclination of the bottom rail 7 can be adjusted by adjusting and fixing the lengths of the elevating cords C1 and C2 by the height adjusting devices 21. By providing the height adjusting device 21 for each of the elevating cords C1 and C2, when the honeycomb screen of the present embodiment is installed or when the elevating cords C1 and C2 are stretched with time after the installation. However, it will be easy to maintain.

The upper ends of the elevating cords C1 and C2 to which the lower ends are attached to the bottom rail 7 are guided to the right in the head box 1 via the support members 3 having the turning pulleys, respectively, and the code guides 5 and the code guides 5 described in detail will be described later. It is inserted into the cord stopper 4 via the braking device 6, and is led out from the cord outlet 15a via the turning pulley 15b (see FIG. 2) of the operating device 15 provided at the right end of the head box 1.

The braking device 6 is a device that brakes the movement of the two elevating cords C1 and C2 in this example so that the descending speed of the honeycomb-shaped fabric 2 is set to a predetermined value or less.

The code guide 5 is a member that supports the braking device 6 and guides and guides a plurality of (two in this example) elevating cords C1 and C2 to the braking device 6 so that they can be separated and derived.

Further, the cord stopper 4 is a device for locking or unlocking the movement of the elevating cords C1 and C2 by directly pulling the elevating cords C1 and C2.

The arrangement of the cord stopper 4, the cord guide 5, and the braking device 6 may be reversed.

The ends of the elevating cords C1 and C2 led out from the cord outlet 15a are connected to the upper end of the operation code 8 by the code equalizer 9, and the lower end of the operation code 8 is connected to the bottom rail 7 via the safety member 10. Be attached. Here, in the code equalizer 9, the range in which the descent speed of the honeycomb-shaped fabric 2 by the braking device 6 is braked to a predetermined value or less by the contact / non-contact of the connecting portion with the head box 1 is regulated. There is. The safety member 10 is detachable so that the operation code 8 can be connected / disconnected, and it is not always necessary to provide the safety member 10, but for safety, a load of a predetermined value or more is applied to the operation code 8. It is designed to separate at the time.

As described above, the honeycomb screen of the present embodiment has a bottom by pulling out a plurality of (two in this example) elevating cords C1 and C2 from the cord outlet 15a of the headbox 1 or pulling them into the headbox 1. The honeycomb-shaped fabric 2 can be directly pulled up and down by raising and lowering the rail 7.

Therefore, if the elevating cords C1 and C2 are pulled out from the head box 1, the bottom rail 7 is pulled up, and the elevating cords C1 and C2 (or the cord equalizer 9 or the operation code 8) are released to activate the lock of the cord stopper 4. For example, the bottom rail 7 can be suspended and supported at a desired position by preventing the elevating cords C1 and C2 from being pulled into the headbox 1.

Further, by slightly pulling out the elevating cords C1 and C2 from the head box 1 to unlock the cord stopper 4, and then releasing the elevating cords C1 and C2 (or the cord equalizer 9 or the operation code 8), the elevating cord C1 , C2 is pulled into the head box 1, and the bottom rail 7 can be lowered by its own weight due to the weight of the bottom rail 7 and the honeycomb-shaped fabric 2.

Here, the honeycomb-shaped dough 2 is generally heavier than the pleated dough, and the weight of the honeycomb-shaped dough 2 drops at a speed generally faster than that during the ascending operation. Therefore, in the honeycomb screen of the present embodiment shown in FIG. 1, even if the code guide 5 and the braking device 6 which will be described in detail will be passed through, the height adjusting device 21 when the honeycomb-shaped fabric 2 vigorously drops its own weight. Has a function of suppressing a collision noise when the bottom rail 7 at the lower end of the honeycomb-shaped fabric 2 collides with the floor surface, and a cushioning material 11 is provided on the lower surface of the bottom rail 7 in order to surely prevent the collision noise. Is provided. The cushioning material 11 is made of rubber or a sponge-like synthetic resin, and is attached to the lower surface of the bottom rail 7 in the present embodiment. A part of the cushioning material 11 is provided with an opening 11a so that the height adjusting device 21 can be rotated by a rotating jig such as a flat-blade screwdriver or a coin.

(Code guide)
FIG. 3 is a perspective view of the braking device 6 and the code guide 5 of the embodiment in the honeycomb screen as the shielding device of the embodiment according to the present invention. 4 (a), (b), (c), and (d) are perspective views showing a schematic configuration of a code guide 5 of an embodiment of a honeycomb screen as a shielding device according to an embodiment of the present invention, respectively. , A plan view, A view side view, and B view side view.

As described above, the braking device 6 causes movement resistance to the two elevating cords C1 and C2 when the honeycomb-shaped fabric 2 descends by its own weight in this example so that the descending speed of the honeycomb-shaped fabric 2 becomes a predetermined value or less. It is a device that brakes the movement. The code guide 5 is a member that supports the braking device 6 and guides and guides a plurality of (two in this example) elevating cords C1 and C2 to the braking device 6 so that they can be separated and derived. The arrangement for separating and guiding a plurality of (two in this example) elevating cords C1 and C2 to the braking device 6 does not have to be limited to the illustrated example and can be changed depending on the application.

Although the code guide 5 is shown by a broken line in FIG. 3, as shown in FIG. 4, the code guide 5 is generally formed in a substantially square box shape having a cavity portion that is surrounded by four vertical walls and penetrates vertically. The braking device 6 can be accommodated and fixed in the cavity. Specifically, a square opening 51a is provided below the cord guide 5, and convex portions 52 are provided on both sides of the inner wall in the front-rear direction of the cord guide 5. Then, as shown in FIG. 3, the braking device 6 is introduced from the square opening 51a provided below the cord guide 5, and the locking holes 616 provided on both sides of the braking device 6 in the front-rear direction are provided. The braking device 6 is fixed to the cord guide 5 by fitting into the convex portions 52 provided on both sides of the inner wall in the front-rear direction of the cord guide 5.

Further, as shown in FIG. 4, the code guide 5 guides the braking device 6 to the braking device 6 so that a plurality of (two in this example) elevating codes C1 and C2 can be distinguished from each other. As shown by, a convex guide piece 59 for preventing the cord from twisting in the front-rear direction and the upper-down direction is provided. In the example of the present embodiment, the two elevating cords C1 and C2 are separately guided and guided, but the three or more elevating cords can be appropriately divided and guided. In this example, the guide piece 59 is provided only on the right side (operation side) in FIG. 3, and the guide piece 59 is not provided on the left side (rail support side) in FIG. 3, but the left side (rail support side) is not provided. It is also possible to have a shape in which the guide pieces 59 are provided only on the rails, or a shape in which the guide pieces 59 are provided on both of them.

Further, as shown in FIG. 4A, a pair of upper and lower shaft holes 591,592,593,594 are provided in the left-right direction in which the braking device 6 is placed. In this example, a pair of upper and lower shaft holes 591 and 592 are provided at one location in the front-rear direction in which the braking device 6 is mounted, and a pair of upper and lower shaft holes 591 and 594 are provided at one location in the front-rear direction in which the braking device 6 is mounted. The diameters of the pair of upper and lower shaft holes 591,592,593,594 are arbitrarily different as shown in the figure.

Then, using the pair of upper and lower shaft holes 591,592,593,594, as shown by the broken line in FIG. 4B, the pulleys 501, 502, 503, 504 can be pivotally supported. There is. For example, as shown by the view A in FIG. 4 (c), the pulley 503 and the pulley 503 (for example, (C1) and (c2) shown in the figure) guide the elevating cord (for example, (C1) and (c2)) once guided in the code guide 5 while avoiding the braking device 6. This is so that it can be turned at 504 so that it can be introduced or derived into the braking device 6. Similarly, for example, as shown by the view B in FIG. 4 (d), the pulley 5011 is a lifting cord (for example, (C1) and (c2) shown in the figure) that once guides the inside of the cord guide 5 while avoiding the braking device 6. This is because it is turned at 502 so that it can be introduced or derived into the braking device 6.

In the example of the present embodiment shown in FIGS. 1 and 2, since the braking device 6 is arranged between each support member 3 and the operating device 15, such pulleys 501, 502, 503, 504 are unnecessary. However, for example, in the case where the braking device 6 is arranged between the plurality of support members 3, by providing such pulleys 501, 502, 503, 504, the raising and lowering to be introduced or led out to the braking device 6 is performed. It is possible to facilitate the guidance of the cord and stabilize the braking performance of the braking device 6 with respect to the elevating cord. Therefore, the code guide 5 shown in FIG. 4 has a structure having a high degree of freedom so as to stabilize the braking performance of the braking device 6 while enabling the handling of various elevating cords.

Further, since the code guide 5 is detachable from the braking device 6, various braking devices 6 having different braking performance can be replaced. As shown in FIG. 3, the code guide 5 of the present embodiment is a braking device when the braking device 6 of the present embodiment is introduced from the square opening 51a provided below the code guide 5 and fixed. An opening 51b for avoiding interference with 6 is provided on the upper surface.

Further, as shown in FIGS. 3 and 4, the code guide 5 of this embodiment has a substantially square box shape, and the abutting surface portion 53 and protrusions as shown in the figure are formed at the four corners on the upper surface of the code guide 5. A portion 54 is provided, and abutment convex portions 55 and 56 as shown on the axis (axial direction of the elevating cord) on the upper surface of the cord guide 5 are provided. Further, as shown in FIG. 4, a bumping convex portion 541 is also provided on the protruding portion 54.

The abutment surface portion 53 and the abutment convex portions 55 and 56 are located at substantially the same height as shown in FIGS. 4C and 4D, and the protrusion 54 having the abutment convex portion 541 is located. , These abutment surface portions 53 and the abutment convex portions 55 and 56 are at a high position so as to project upward. This is because when the code guide 5 in the state where the braking device 6 of the present embodiment is fixed is abutted against the inner upper surface of the head box 1 and fixed, the abutting surface portion 53 and the abutment surface portion 53 and the protrusions are made according to the shape of the head box 1. This is to enable two types of abutting, one is abutting by the abutment convex portions 55 and 56 and the other is abutting by the abutment convex portion 541 in the protrusion 54.

Then, in the head box 1 in the honeycomb screen of the present embodiment, as shown in FIG. 5, an opening 1c opened in the longitudinal direction is provided, and the support member 3 is arranged and fixed at an arbitrary position in the left-right direction. The elevating cords C1 and C2 can be hung down, but the opening 1d for accommodating the cord guide 5 with the braking device 6 fixed in the headbox 1 from below is the headbox 1. It is further provided on the lower surface.

The opening 1d has a shape (in this example, a square plane shape) that engages with the front-back / left-right plane shape at the bottom of the cord guide 5, thereby suppressing rattling in the front-back / left-right direction and raising and lowering the cord. Braking performance for C1 and C2 can be stabilized.

Further, in the example shown in FIG. 5, rattling in the vertical direction is suppressed by abutting the abutting surface portion 53 of the cord guide 5 and the abutting convex portions 55 and 56 against the inner upper surface portion 1a of the head box 1. A repellent hole 1b for avoiding the protrusion 54 is provided on the upper surface of the head box 1. The hole 1b can be formed into a hole shape that contributes to the suppression of rattling in the front-rear and left-right directions by the protrusion 54.

A claw portion 57 is provided on the front and rear side walls of the bottom portion of the cord guide 5 of the present embodiment as a fixing portion for engaging and fixing the opening 1d provided on the lower surface of the head box 1. A claw portion 57 may be provided as the fixing portion on the front and rear side walls of the bottom portion of the cord guide 5.

As described above, in the honeycomb screen of the present embodiment, as shown in FIG. 5, the cord guide 5 in a state where the braking device 6 is fixed is accommodated in the head box 1 from below and can be fixed to improve the assembling property. Moreover, it is possible to suppress back and forth, left and right, and up and down rattling.

At the lower end of the head box 1, protrusions 1e and 1f for locking the fabric retainer 12 for suspending the honeycomb-shaped fabric 2 and hook-shaped locking pieces 1g are provided. In this example, with one end 12b of the fabric retainer 12 hooked on the projecting piece 1f of the head box 1, the other end 12a of the fabric retainer 12 is pushed in while being elastically deformed so as to be hooked on the projecting piece 1e of the head box 1. A substantially U-shaped piece formed on the fabric retainer 12 is locked by fitting into the locking piece 1g.

Here, as shown in FIG. 5, on the lower surfaces of the cord guide 5 and the braking device 6, one or more (one each in this example) columnar (cylindrical) protrusions 58 and 694 are formed. Each is formed. In the present embodiment, the protrusions 58 and 694 are not necessarily provided on the lower surfaces of the cord guide 5 and the braking device 6, but the cord guide 5 is provided by using the avoidance holes 12d and 12e provided in the fabric retainer 12. The hole shape can be made to contribute to the suppression of rattling in the front-rear and left-right directions of the braking device 6. The protrusions 58 and 694 formed on the lower surface of the cord guide 5 and the braking device 6 are supported by inserting the cord guide 5 and the braking device 6 from above the head box 1 and providing them on the lower surface of the head box 1, for example. It can be used when positioning with holes.

Then, as shown in FIG. 6A, the code guide 5 that fixes and holds the braking device 6 accommodates itself in the head box 1 from below so that it can be fixed, and rattles back and forth, left and right, and up and down. Is made possible to suppress. In particular, in the present embodiment, as shown in FIG. 6A, the height of the bottom of the braking device 6 and the height of the bottom of the inverted concave cord guide 5 for fixing and holding the braking device 6 are aligned. .. Therefore, as shown in FIG. 6B, both the braking device 6 and the cord guide 5 are supplementarily provided separately from the claw portion 57 of the cord guide 5, or the claw portion 57 of the cord guide 5 is abolished. As the main support function, the cloth retainer 12 is configured to suppress the rattling of the upper and lower parts of the braking device 6 and the cord guide 5. When the fabric retainer 12 is used to suppress the upper and lower rattling, the cord guide may be configured so that the heights of the bottom of the braking device 6 and the bottom of the cord guide 5 are the same. 5 does not have to be the inverted concave shape in front view.

As shown in FIG. 6B, since the honeycomb screen is capable of raising and lowering the honeycomb-shaped fabric 2 formed by connecting a large number of cells 2N in the vertical direction, the honeycomb-shaped fabric 2 is lowered to shield the honeycomb-shaped fabric 2. In the front-rear direction, it is almost the same as the one in which the double fabric is suspended, and the space provided by each cell 2N is maintained. For this reason, the thickness and hardness of the honeycomb-shaped fabric, the light-shielding property (or translucency) are adjusted, and in some cases, aluminum foil or the like is attached to each cell to improve the heat insulating property and the light-shielding property. be able to.

Further, in the honeycomb screen of the present embodiment, a braking device 6 is provided which guides a plurality of (two in this example) elevating cords C1 and C2 so as to be separable by the cord guide 5, and stabilizes and holds the cords C2. Since the braking device 6 can control the descending speed of the honeycomb-shaped fabric 2 to be equal to or less than a predetermined value, noise from the honeycomb-shaped fabric 2 (change in air pressure in the cell, static electricity, hardness of the fabric) that may occur by the conventional technique. It is possible to suppress the rustling noise that is presumed to be caused by one or more of the factors.

Further, in the honeycomb screen, in order to raise and lower the honeycomb-shaped fabric 2 with the elevating cords C1 and C2, an insertion hole 2d is provided in the partition wall portion 2c formed inside the cell 2N, and the elevating cord C1 (the elevating cord C1 ( C2) will be inserted, but as described above, it is preferable that the insertion hole 2d has a smaller diameter in order to improve the heat insulating property.

Therefore, in the honeycomb screen of the present embodiment, even when the diameter of the insertion hole 2d is reduced, the wear of the elevating cord C1 (C2) can be reduced by speed control by the braking device 6, so that dust due to the wear is suppressed. However, the quality can be improved by allowing the dust to be contained in the cells of the honeycomb-shaped fabric.

(Brake device)
The braking device 6 is operated by generating a moving resistance with respect to the elevating cords C1 and C2 when the weight of the honeycomb-shaped dough 2 is lowered, and reducing the moving resistance with respect to the elevating cords C1 and C2 during the raising operation of the honeycomb-shaped dough 2. Preferred from the viewpoint of sex. Therefore, the braking device 6 of the present embodiment will be described with reference to FIGS. 7 to 9, but when the weight of the honeycomb-shaped fabric 2 is lowered, movement resistance is generated in the elevating cords C1 and C2, and the honeycomb-shaped fabric 2 is generated. A movable pulley (idle roller 63, drive roller 64) that movably sandwiches the elevating cords C1 and C2 is provided so as to reduce the movement resistance to the elevating cords C1 and C2 at the time of the ascending operation. In the present embodiment shown in FIGS. 7 to 9, both the idle roller 63 and the drive roller 64 are described as movable pulleys, but one of them may be a fixed pulley and the other may be a movable pulley.

FIG. 7 is an exploded perspective view showing a schematic configuration of the braking device 6 of the embodiment in the honeycomb screen as the shielding device of the embodiment according to the present invention. 8 (a) and 8 (b) are partial plan views schematically showing the operation of the braking device 6 of this embodiment, respectively. Further, FIG. 9 is a perspective plan view of the gear mechanism 6a in the braking device 6 of the present embodiment.

First, as shown in FIGS. 7 and 8, the braking device 6 of this embodiment includes a case 61, a slider 62, a coil spring SP, an idle roller 63, a drive roller 64, a carrier with internal teeth 65, an annular plate 66, and the sun. It includes a weight holder 67 with gears, a weight 68, and a base 69. The carrier 65 with internal teeth, the annular plate 66, the weight holder 67 with sun gears, and the weight 68 are configured as a brake portion 6a that generates braking torque with respect to the rotation of the drive roller 64.

The case 61 has a box-like shape in which a slider accommodating portion 611 accommodating a slider 62 and a coil spring SP and a brake accommodating portion 612 accommodating a brake portion 6a are connected and the lower portion is opened. An inner peripheral gear 612a is formed on the inner peripheral wall of the brake accommodating portion 612 of the case 61 (see FIG. 9). Further, the lower end of the brake accommodating portion 612 in the case 61 is formed in a substantially square plate shape having fitting receiving portions 615 at the four corners, and is also formed by a base 69 formed in a substantially square plate shape having fitting protrusion pieces 693 at the four corners. , Each fitting receiving portion 615 of the case 61 and each fitting projection piece 693 of the base 69 are fitted and covered. The case 61 is provided with cord insertion holes 614 through which a plurality of elevating cords (in this example, the two elevating cords C1 and C2) can be inserted, on each wall portion in the left-right direction of the slider accommodating portion 611. There is. Further, locking holes 616 are provided on both sides of the case 61 in the front-rear direction.

Here, as described with reference to FIGS. 3 and 4, the code guide 5 is configured in a substantially square box shape having a cavity portion that is generally surrounded by four vertical walls and penetrates vertically. The braking device 6 can be accommodated and fixed in the cavity. That is, referring to FIG. 7, the slider accommodating portion 611 located at the upper part of the case 61 is introduced from the opening 51a below the cord guide 5, and the locking holes provided on both sides of the braking device 6 in the front-rear direction. The braking device 6 is fixed to the cord guide 5 by fitting the 616 into the convex portions 52 provided on both sides of the inner wall in the front-rear direction of the cord guide 5. When the cord guide 5 is placed on the case 61, the plurality of elevating cords (in this example, the two elevating cords C1 and C2) are surely separated so that the cords do not get entangled with each other. The elevating cords C1 and C2 can be guided to the cord insertion holes 614 provided in the left and right wall portions of the slider accommodating portion 611 of the case 61.

By the way, on the upper surface of the slider accommodating portion 611 in the case 61, a C-shaped groove 613 extending substantially in the left-right direction and slightly bending in the front-rear direction is formed, and each groove in the C-shaped groove 613 is a slider 62. The roller shafts 631, 641 on the upper side of the idle roller 63 and the drive roller 64 housed in the above are movably supported along the groove shape.

Here, in this example, a shaft support reinforcing portion 611a for reinforcing the upper shaft support of each roller shaft 631, 641 is formed on the upper surface of the slider accommodating portion 611 in the case 61, and each roller shaft 631, 641 accommodates the slider. It is supported by a C-shaped groove 613 formed on the upper surface of the portion 611 itself and a shaft support reinforcing portion 611a. However, the shaft support reinforcing portion 611a may have a structure in which the thickness of the upper surface of the slider accommodating portion 611 is simply increased to reinforce the shaft support.

Further, the roller shafts 631, 641 on the upper side of the idle roller 63 and the drive roller 64 are supported by the grooves of the case 61, the slider 62, and the base 69, respectively.

The slider 62 is configured in a substantially square box shape having a hollow portion 620 that is surrounded by the left and right vertical walls, the top wall, and the bottom wall and penetrates in the front-rear direction, and is formed of a roller portion 632 of the idle roller 63 and a drive roller 64. The roller portion 642 is housed in the cavity portion 620, and the roller shafts 631, 641 on the upper side of the roller portions 632 and 642 are pivotally supported by a pair of top wall grooves 621 formed in the top wall so as to extend in the front-rear direction. The lower roller shafts 631, 641 of each roller portion 632, 642 are formed by a pair of lower wall grooves 622 formed in parallel with the pair of top wall grooves 621 so as to extend in the front-rear direction on the bottom wall. It supports the axis. As a result, the slider 62 movably supports the idle roller 63 and the drive roller 64 in the front-rear direction that intersects the above-mentioned C-shaped groove 613.

Further, when the slider 62 is housed in the slider accommodating portion 611 of the case 61, the other end of the coil spring SP that engages one end with the inner wall of the slider accommodating portion 611 engages with the engaging recess 623 of the slider 62. The slider 62 is always urged in one direction (left direction in the figure) in the slider accommodating portion 611 in the case 61 and relatively moves in the left-right direction (relative slide) due to the coil spring SP by the compression spring. (Move) is possible.

A cord insertion hole 624 is formed on each of the left and right vertical walls of the slider 62. Therefore, when the slider 62 is housed in the slider accommodating portion 611 in the case 61, the cord insertion hole 614 in the case 61 and the cord insertion hole 624 of the slider 62 are relatively displaced from each other in the left-right, front-back, and up-down directions. The elevating cords C1 and C2, which are inserted through the cord insertion hole 614 of the slider 62 through the cord insertion hole 614 in the case 61, are all arranged in the slider 62, and the roller portion of the idle roller 63 is provided. It is in a state of being sandwiched between the roller portion 642 of the 632 and the drive roller 64.

The idle roller 63 and the drive roller 64, which are slidably supported by the slider 62, cooperate with the C-shaped groove 613 of the case 61, and the elevating cords C1 and C2 are moved according to the moving direction of the elevating cords C1 and C2. It becomes possible to switch between narrow pressure / non-narrow pressure states for C1 and C2 (details will be described later).

The idle roller 63 has a roller portion 632 with the roller shaft 631 as the axis. The roller shaft 631 above the roller portion 632 is pivotally supported by one of the top wall groove 621 of the slider 62 and one of the V-shaped grooves 613 of the case 61, and the roller shaft 631 below the roller portion 632 is a slider. Each of these members is pivotally supported by one of the bottom wall grooves 622 of 62 and is configured as a brake portion 6a without interfering with the carrier 65 with internal teeth, the annular plate 66, the weight holder 67 with sun gears, and the weight 68. It is pivotally supported by the C-shaped groove 692 corresponding to one of the C-shaped grooves 613 of the above case 61 provided in the raised portion 691 that rises in a circle at the substantially center of the base 69 through the hollow portion of the above. ..

The drive roller 64 has a roller portion 642 having a roller shaft 641 as an axis, and a pinion gear 644 having the roller shaft 641 as an axis below the roller portion 642. The roller shaft 641 above the roller portion 642 of the drive roller 64 is pivotally supported by the other top wall groove 621 of the slider 62 and the other groove of the V-shaped groove 613 on the upper surface of the case 61, and the roller portion 642 and the pinion gear 644. The roller shaft 641 between and is pivotally supported by the other bottom wall groove 622 of the slider 62, and has an internal toothed carrier 65 configured as a brake portion 6a, an annular plate 66, a weight holder 67 with a sun gear, and a weight. Corresponds to the other groove of the C-shaped groove 613 of the above case 61 provided in the raised portion 691 which rises in a circular shape in the substantially center of the base 69 through the hollow portion of each of these members without interfering with the 68. It is pivotally supported by the C-shaped groove 692.

In this example, a knurl is engraved on the peripheral surface of the roller portion 642 of the drive roller 64, and the knurl is not engraved on the peripheral surface of the roller portion 632 of the idle roller 63, and the peripheral surface is a flat peripheral surface. A knurl may also be engraved on the peripheral surface of the 632. Further, a washer (not shown) can be appropriately interposed in each shaft portion of the drive roller 64 and the idle roller 63.

In this example, the brake portion 6a has a centrifugal brake structure in which the amount of brake can be adjusted in multiple stages, and is composed of a carrier 65 with internal teeth, an annular plate 66, a weight holder 67 with sun gears, and a weight 68. In particular, the brake unit 6a is configured to have a braking torque amplification function based on the rotation of the pinion gear 644 and a braking torque adjusting function that enables the braking torque of the centrifugal brake to be adjusted in multiple stages.

The carrier 65 with internal teeth has a cylindrical portion 654 having a hollow portion in the center of a substantially disk-shaped carrier main body 651 and projecting downward, and an internal gear 652 is formed on the inner peripheral surface of the cylindrical portion 654. .. The internal gear 652 is meshed with the pinion gear 644 of the drive roller 64. Then, the pinion gear 644 is accommodated in the brake accommodating portion 612 of the case 61 in a state of being meshed with the internal gear 652. Further, on the lower surface of the substantially disk-shaped carrier main body 651 of the carrier 65 with internal teeth, a plurality of symmetrically arranged at predetermined intervals on the outer circumference of the cylindrical portion 654 of the portion protruding downward from the carrier main body 651 (in this example). Four) planetary gears 653 are rotatably supported.

Each planetary gear 653 meshes with the sun gear 672 in the weight holder 67 with the sun gear and the inner peripheral gear 612a formed on the inner peripheral wall of the brake accommodating portion 612 of the case 61 (see FIG. 9). ).

Then, the inner peripheral surface of the cylindrical portion 654 protruding downward from the carrier 65 with internal teeth engages with the outer peripheral wall of the raised portion 691 that rises in a circular shape at the substantially center of the base 69 and is rotatably supported. It is possible to rotate (revolve) around the central portion of the gear 652 as a central axis. Therefore, the rotation of the pinion gear 644 of the drive roller 64 is transmitted to the internal gear 652, so that the carrier 65 with internal teeth rotates, and accordingly, it is rotatably supported by the carrier main body 651 of the carrier 65 with internal teeth. By rotating each planetary gear 653, it becomes possible to transmit the rotation of the pinion gear 644 to the weight holder 67 with a sun gear.

In the weight holder 67 with a sun gear, eight projecting pieces 673 radially protruding from the lower outer circumference of the holder body 671 having a substantially cylindrical shape are formed in this example, and the upper substantially cylinder on which the projecting pieces 673 are formed. A sun gear 672 is formed on the outer peripheral surface of the holder body 671. The inner peripheral surface of the holder body 671 is rotatably supported by engaging with the outer peripheral surface of the cylindrical portion 654 protruding downward from the carrier 65 with internal teeth, and rotates (revolves) around the central portion of the sun gear 672. It is possible to do.

(Brake torque amplification function)
The centrifugal force increases as the turning radius increases, the rotation speed increases, and the mass (weight and number of weights 68 themselves) increases. However, in the braking device 6 of the first embodiment, as shown in FIG. 9, the pinion increases. Since the rotation of the gear 644 is rotated and transmitted to the weight holder 67 with the sun gear via the carrier 65 with internal teeth by increasing the rotation radius, the braking torque is amplified, which results in efficiency. It can generate good braking force.

In this example, the eight projecting pieces 673 formed so as to project radially from the lower outer circumference of the substantially cylindrical holder body 671 form eight recesses, and each of the eight recesses has a substantially trapezoidal plate shape. Weights 68 can be arranged so that the eight projecting pieces 673 can hold each weight 68 in cooperation with the inner wall of the brake accommodating portion 612 in the case 61.

(Brake torque adjustment function)
That is, the braking device 6 can adjust the braking torque by the centrifugal brake applied to the pinion gear 644 by making it possible to adjust the number of the weights 68 to be arranged, and this example includes the case where the weights 68 are not arranged at all. Then, a total of 9 levels of adjustment are possible. By increasing the maximum number of weights 68 that can be arranged in the weight holder 67 with sun gears (increasing the number of protruding pieces 673), it is possible to adjust the braking torque by a finer multi-step centrifugal brake.

An annular plate 66 is interposed between the carrier 65 with internal teeth and the weight holder 67 with sun gears. The annular plate 66 is located in the center of a disk shape slightly smaller than the outer peripheral diameter of the holder body 671 including the tips of the eight projecting pieces 673 of the weight holder 67 with a sun gear, and the sun gear 672 of the weight holder 67 with a sun gear. It has a shape having a hollow portion through which the holder main body 671 is inserted, which is slightly larger than the outer peripheral diameter of the holder main body 671 including the above. Therefore, the annular plate 66 prevents the planetary gears 653 from tilting when the carrier 65 with internal teeth and the weight holder 67 with the sun gear are engaged, and interferes with the planetary gears 653 and the weight 68. Has a function to prevent.

(Code movement detection function)
Further, in the braking device 6, a pair of roller portions 632 and 642 by an idle roller 63 and a drive roller 64 that are slidably supported by a slider 62 with respect to the case 61, and each axis is formed by a C-shaped groove 613 of the case 61. Since the guide is provided, it is possible to detect the presence / absence and the movement direction of a plurality of (two in this example) elevating cords C1 and C2. Then, when the elevating cords C1 and C2 move in one direction, the pair of roller portions 632 and 642 narrowly press the elevating cords C1 and C2, and when the elevating cords C1 and C2 move in the other direction, a pair of elevating cords C1 and C2. The narrowing pressure state by the roller portions 632 and 642 is relaxed (as non-narrow pressure), and the elevating cords C1 and C2 are sandwiched.

That is, in the example of the present embodiment, the pair of roller portions 632 and 642 by the idle roller 63 and the drive roller 64 are pivotally supported by the top wall groove 621 and the bottom wall groove 622 of the slider 62, respectively, and the case 61 is c. As shown in FIG. 8A, when the elevating cords C1 and C2 move to the left (the rail support side by the bottom rail 7), the slider is guided by the character groove 613. 62 also slides in the same direction and is guided so that the distance between the pair of roller portions 632 and 642 is narrowed, so that the pair of roller portions 632 and 642 are pressed to narrow the pressure and sandwich the elevating cords C1 and C2. ..

On the other hand, as shown in FIG. 8B, when the elevating cords C1 and C2 move to the right (operation side), the slider 62 slides to the right (operation side), and the pair of roller portions 632. By being guided so that the distance between the and 642 is increased, the narrow pressure state by the pair of roller portions 632 and 642 is relaxed (as non-narrow pressure), and the elevating cords C1 and C2 are sandwiched. Therefore, in the example shown in FIGS. 8A and 8B, the slider 62 moves relative to the case 61 by Δd.

As a result, when the honeycomb-shaped fabric 2 is lowered, the pulling operation of the lifting cords C1 and C2 (or the operation code 8 or the cord equalizer 9) is stopped, the operation of the cord stopper 4 is released, and the honeycomb-shaped fabric 2 is lowered by its own weight. Occasionally, the distance between the pair of roller portions 632 and 642 in the braking device 6 is close to each other, resulting in a narrow pressure state, that is, a high friction state, which causes a braking force and causes the honeycomb-shaped fabric 2 to descend smoothly and at an appropriate speed. It will be realized in.

On the other hand, when the honeycomb-shaped fabric 2 is raised based on the pulling operation of the elevating cords C1 and C2 (or the operation cord 8 or the cord equalizer 9), the distance between the pair of roller portions 632 and 642 in the braking device 6 is separated and released. It becomes a state, that is, a non-narrow pressure state, and a smooth ascent of the honeycomb-shaped fabric 2 is realized.

As a result, with respect to the cords to be speed-adjusted (elevation cords C1 and C2 in this example), braking force is generated only in one direction of movement, and the load of the cords when moving in the other direction can be reduced. It is possible to suppress an increase in code deterioration and deterioration of operability.

(Height adjustment device)
Next, the height adjusting device 21 shown in FIG. 1 will be described with reference to FIGS. 10 to 13. FIG. 10 is a perspective view showing a schematic configuration of the height adjusting device 21 of the embodiment in the honeycomb screen as the shielding device of the embodiment according to the present invention. 11 (a) to 11 (f) are a perspective view, a top view, a bottom view, a side view, and a sectional view taken along the line AA showing the schematic configuration of the holding member 23 of the height adjusting device 21 of this embodiment, respectively. And BB sectional view. 12 (a) and 12 (b) are a perspective view and a front view showing a schematic configuration of the rotating member 25 of the height adjusting device 21 of this embodiment. 13 (a) to 13 (f) are perspective views showing the assembly process of the height adjusting device 21 of the present embodiment, respectively. In FIGS. 10 to 13, the shape of the bottom rail 7 is simplified and shown.

First, as shown in FIG. 10, the height adjusting device 21 describes the elevating cord C1 as a representative, but is attached to the holding member 23 for holding the elevating cord C1 and the holding member 23 so as to be relatively rotatable and elevated. It is equipped with a rotating member 25 around which the cord C1 is wound and fixed so that the length can be adjusted, and the rotating member 25 can be rotated from the lower surface of the bottom rail 7 by a rotating jig such as a flat-blade screwdriver or a coin. .. The height adjusting device 21 has a function of adjusting the lower limit position of the bottom rail 7 by changing the pulling amount of the elevating cord C1 into the bottom rail 7 as the rotating member 25 rotates. .. The holding member 23 of this embodiment is guided by a rail 71 provided at the center of the bottom rail 7 in the width direction. Then, the elevating cord C1 is prevented from being pulled out from the height adjusting device 21 by the knot ball 31 of the elevating cord C1.

As shown in FIGS. 11A to 11F, the holding member 23 has a main body 23a of a pyramid base, and has a first cord accommodating groove 23b over the entire length thereof, and the first cord accommodating groove 23b is provided. The elevating cord C1 is accommodated in the cord accommodating groove 23b. A knot ball 31 is provided at the tip of the elevating cord C1, and the elevating cord C1 is prevented from being pulled out by the knot ball 31 coming into contact with the peripheral wall of the first cord accommodating groove 23b. Further, since the first cord accommodating groove 23b is open to the bottom rail 7 side, the elevating cord C1 is held between the holding member 23 and the bottom rail 7 in the first cord accommodating groove 23b. .. In this embodiment, as shown in FIG. 10, the rail 71 is provided at the center of the bottom rail 7 in the width direction, and the holding member 23 is located closer to the bottom rail 7 than the first cord accommodating groove 23b. , Has a rail holding groove 23c. The rail holding groove 23c communicates with the first cord accommodating groove 23b and extends parallel to the first cord accommodating groove 23b. The holding member 23 is attached to the rail 71 by inserting the rail 71 into the rail holding groove 23c. With such a configuration, the elevating cord C1 is held in a space surrounded by the peripheral wall of the first cord accommodating groove 23b and the rail 71.

The holding member 23 is fitted with a rotating member 25 inserted from below in a relative rotatable manner and locked at the center of the first cord accommodating groove 23b in the longitudinal direction that divides the first cord accommodating groove 23b. A hole 23d is provided, and the rotating member 25 is inserted into the fitting hole 23d and is rotatably attached to the holding member 23. When the rotating member 25 is locked to the fitting hole 23d, two upper and lower steps 23f formed on the inner peripheral surface of the fitting hole 23d are formed above and below the rotating member 25 shown in FIG. The claw portion 251 of the rotating member 25 is engaged with the steps 254 and 255, respectively, and is fitted to the upper surface opening of the holding member 23 so as to be relatively rotatable.

As shown in FIGS. 12A and 12B, the rotating member 25 has a columnar base portion 25a having a step 255, a bifurcated tip portion 25b extending from the base portion 25a via the step 254, and a base portion. It is composed of a flange portion 25c that protrudes in the radial direction from 25a (in other words, has a larger radius than the base portion 25a). The tip portion 25b is provided with a claw portion 251 projecting in the radial direction, and when the rotating member 25 is inserted into the fitting hole 23d, the claw portion 251 fits into the upper surface opening of the holding member 23 and rotates. Prevents the member 25 from being separated from the holding member 23. The tip portion 25b is provided with a second cord accommodating groove 252 through which the elevating cord C1 is passed. In a state where the rotating member 25 is fitted to the holding member 23, the second cord accommodating groove 252 is arranged on a straight line connecting a pair of first cord accommodating grooves 23b divided by the fitting hole 23d. As shown in 12 (b), the elevating cord C1 passes through. Further, the tip portion 25b is formed into a bifurcated fitting piece by the second cord accommodating groove 252, and each fitting piece is used when the rotating member 25 is inserted into the fitting hole 23d of the holding member 23. It can be easily elastically deformed inward in the radial direction. Therefore, the rotating member 25 and the holding member 23 can be easily fitted.

Then, when the rotating member 25 is fitted to the holding member 23 and the rotating member 25 is rotated while the elevating cord C1 is accommodated in the first and second cord accommodating grooves 23b and 45, the elevating cord C1 becomes the rotating member. It is wound around the tip portion 25b of 25 (see FIG. 12B). Then, the elevating cord C1 is pulled into the bottom rail 7 by the amount of winding, and the lower limit position of the bottom rail 7 rises. Therefore, the lower limit position of the bottom rail 7 can be adjusted by the rotation of the rotating member 25.

A rotation operation unit 253 is provided on the outer surface side of the base portion 25a of the rotation member 25, and the rotation operation unit 25 rotates the rotation member 25. In the present embodiment, the rotation operation unit 253 is a linear (that is, minus) shape engagement groove, but the configuration of the rotation operation unit 253 is not particularly limited, and is a + (plus) shape or a hexagonal shape. It may be an engaging groove having a different shape such as, or it may be an engaging groove having a − shape, a + shape, or a hexagonal shape. The rotating member 25 can be rotated by engaging the tip of a rotating jig such as a minus driver, a coin, a Phillips screwdriver, or a hexagon wrench with the engaging groove and rotating the rotating jig in that state. In the case of the engaging convex portion, a rotating jig that engages with the engaging convex portion is prepared, and the rotating member 25 can be rotated by the same operation. Further, the rotating member 25 may be rotated by simply increasing the amount of protrusion of the base portion 25a from the bottom rail 7 and grasping the side surface of the protruding portion. In this case, the side surface of the protruding portion becomes the rotation operation unit 253. In any case, the rotation operation unit 253 is provided on the bottom surface of the bottom rail 7, and the rotation operation unit 253 is hard to be seen by the user in a situation where the user is living a normal life. Therefore, even if the rotation operation unit 253 is provided at such a position, the designability is not impaired.

The bottom rail 7 has a through hole 72 (see FIG. 13) on the installation surface (that is, the bottom surface) of the holding member 23, and the rotating member 25 is inserted into the bottom rail 7 through the through hole 72. Since the through hole 72 has a size in which the base portion 25a of the rotating member 25 can be inserted and is slightly smaller than the flange portion 25c, when the rotating member 25 is pushed into the through hole 72, the flange portion 25c is inserted. Abuts on the bottom surface of the bottom rail 7 to prevent further pushing. At this time, since the claw portion 251 is engaged with the upper surface of the holding member 23 (see FIG. 12A), the rotating member 25 is prevented from coming out of the through hole 72. Further, before the rotating member 25 is inserted, the holding member 23 can freely slide and move along the rail 71, but its position is fixed by fitting with the rotating member 25. In this embodiment, the flange portion 25c completely closes the through hole 72 to prevent accidents such as cutting a hand at the edge of the through hole 72 to improve safety, but the flange portion 25c is indispensable. Rather, the entire holding member 23 is housed in the bottom rail 7, and the rotating jig is inserted into the through hole 72 and engaged with the rotation operation unit 253 to rotate the rotating member 25. May be good.

Further, in this embodiment, the rotation operation unit 253 is provided on the bottom surface side of the bottom rail 7, but for example, a through hole is provided in the fabric retainer 13, and a rotation jig is inserted into the through hole to insert a rotation member. The tip portion 25b may be engaged with the tip portion 25b to be rotated, or the tip portion 25b may be projected to the outside through the through hole, and the tip portion 25b may be grasped and rotated. Further, the rotating member 25 and the holding member 23 may be configured so that the rotating member 25 is inserted from the fabric holding member 13 side.

Tension is always applied to the elevating cord C1 due to the weight of the bottom rail 7 and the honeycomb-shaped fabric 2, and the rotating member 25 winds up the elevating cord C1 against this tension. Without, the elevating cord C1 would be rewound immediately. Therefore, in this embodiment, the rotating member 25 and the holding member 23 are engaged with each other at a plurality of points in the circumferential direction, and this engagement prevents the lifting cord C1 from being rewound. Specifically, as shown in FIG. 11C, the holding member 23 is provided with three engaging recesses 23e on both sides of the first cord accommodating groove 23b at intervals of 45 degrees. Further, the rotating member 25 is provided with four engaging convex portions 256 at intervals of 90 degrees above the step 255 around the base portion 25a. In the first state in which the engaging concave portion 23e and the engaging convex portion 256 are engaged, the two engaging convex portions 256 are located at the position of the first cord accommodating groove 23b, and the remaining two engaging convex portions 256 are located. It engages with the central one of the three engaging recesses 23e provided on both sides of the first cord accommodating groove 23b. When the rotating member 25 is rotated from this state, the engagement is released, and when the rotating member 25 is further rotated, the four engaging protrusions 256 engage with the four engaging recesses 23e which were not involved in the engagement in the first state. do. When the rotating member 25 is further rotated, the same state as the first state is obtained again. In this way, the engaging concave portion 23e and the engaging convex portion 256 are engaged at a plurality of points every 45 degree rotation, and the rewinding of the elevating cord C1 is prevented. The positions and numbers of the engaging concave portion 23e and the engaging convex portion 256 can be appropriately changed, and the concave portion and the convex portion may be exchanged.

When the holding member 23 is rotatable, when the rotating member 25 is rotated, the rotation of the rotating member 25 is transmitted to the holding member 23 by the engagement between the engaging concave portion 23e and the engaging convex portion 256, whereby the holding member 23 is held. The member 23 also rotates. In order to prevent this, it is preferable that the holding member 23 is installed on the bottom rail 7 so that it cannot rotate around the rotation axis of the rotating member 25 or the rotatable angle is within 90 degrees. It is preferable that the rotating member 25 cannot rotate, but even if the holding member 23 rotates together when the rotating member 25 is rotated, it is not a big problem as long as it is within 90 degrees. This is because the elevating cord C1 can be wound up by further rotating the rotating member 25. The rotatable angle is such that the rotating member 25 is rotated in one direction until the holding member 23 does not rotate, and the holding member 23 does not rotate when the rotating member 25 is rotated in the opposite direction from that state. Means an angle.

Next, a method of assembling the height adjusting device 21 of this embodiment will be described with reference to FIGS. 13 (a) to 13 (f).
First, as shown in FIG. 13A, the elevating cord C1 is inserted through the through hole 72 provided in the bottom rail 7. A knot ball 31 is formed at the end of the elevating cord C1.
Next, as shown in FIG. 13B, the holding member 23 is engaged with the rail 71 provided inside the bottom rail 7 (more specifically, the rail 71 from the longitudinal end of the bottom rail 7). Is inserted into the rail holding groove 23c of the holding member 23), and the holding member 23 is slid on the rail 71 and moved to a position beyond the through hole 72 as shown in FIG. 13 (c). By this operation, the elevating cord C1 is naturally accommodated in the first cord accommodating groove 23b.
Next, as shown in FIG. 13D, the elevating cord C1 is pulled out from the through hole 72 from the inner surface side of the bottom rail 7.
Next, as shown in FIG. 13 (e), the holding member 23 is slid so that the position of the fitting hole 23d provided in the holding member 23 and the position of the through hole 72 of the bottom rail 7 match.
Next, as shown in FIG. 13 (f), the rotating member 25 is inserted from the outer surface side of the bottom rail 7 through the through hole 72 and fitted into the fitting hole 23d of the holding member 23 to fit the height adjusting device 21. Complete the assembly.
As described above, according to the configuration of this embodiment, the height adjusting device 21 is composed of only two parts, and its assembly is very easy.

In the height adjusting device 21 of this embodiment, it is possible to configure the height adjusting device 21 without providing an engaging structure between the holding member 23 and the bottom rail 7. Since the holding member 23 and the bottom rail 7 are fixed so as to be relatively rotatable by the claw portion 251 and the flange portion 25c of the rotating member 25, only a mechanism for preventing the rotatable angle of the holding member 23 to be 90 degrees or less is provided. good. In this case, the claw portion 251 and the flange portion 25c are provided with sufficient strength to hold the force applied between the holding member 23 and the bottom rail 7.

As described above, in the height adjusting device 21 of the present embodiment, the holding member 23 that holds each of the elevating cords C1 and C2 and the elevating cords C1 and C2 that are rotatably attached to the holding member 23 are attached to each of the elevating cords C1 and C2. It is provided with a rotating member 25 that can be wound and fixed to adjust the length, and the rotating member 25 can be rotated from the lower surface of the bottom rail 7 by a rotating jig such as a minus driver or a coin. Then, the height and inclination of the bottom rail 7 can be adjusted by adjusting and fixing the lengths of the elevating cords C1 and C2 by the height adjusting devices 21. By providing the height adjusting device 21 for each of the elevating cords C1 and C2, when the honeycomb screen of the present embodiment is installed or when the elevating cords C1 and C2 are stretched with time after the installation. However, it will be easy to maintain.

The honeycomb-shaped fabric 2 is relatively heavy, and the honeycomb-shaped fabric 2 vigorously drops its own weight to suppress the collision noise when the bottom rail 7 at the lower end of the honeycomb-shaped fabric 2 collides with the floor surface. can.

Moreover, in the present embodiment, the cushioning material 11 is provided on the lower surface of the bottom rail 7. As a result, the collision sound can be reliably prevented.

[Overall configuration of honeycomb screen as a shielding device of another embodiment]
In the honeycomb screen as the shielding device of the embodiment shown in FIGS. 1 and 2 described above, an example of suspending and raising and lowering one type of honeycomb-shaped fabric 2 has been described, but a plurality of types of honeycomb-shaped fabrics 2 are arranged one above the other. It can be applied to a honeycomb screen that is suspended and raised and lowered individually.

FIG. 14 is a front view showing a schematic configuration of a honeycomb screen according to another embodiment of the present invention, in which two types of honeycomb-shaped fabrics 2U and 2L are arranged one above the other.

In the honeycomb screen shown in FIG. 14, the foldable upper honeycomb-shaped fabric 2U is suspended and supported from the head box 1 by using a fabric retainer, and the lower end of the upper honeycomb-shaped fabric 2U is intermediate using the fabric retainer. It is attached to the upper surface of the rail 7U. The structures of the upper honeycomb-shaped fabric 2U and the fabric retainer are the same as those of the honeycomb-shaped fabric 2 and the fabric retainers 12 and 13, respectively shown in FIG.

Further, a plurality of elevating cords (two elevating cords C1U and C2U in this example) are hung from the head box 1, and an insertion hole 2d formed in the center of each partition wall portion 2c in the upper honeycomb-shaped fabric 2U in the front-rear direction. The lower ends of the elevating cords C1U and C2U are attached to the intermediate rail 7U.

Height adjusting devices 21U are provided at the lower ends of the elevating cords C1U and C2U, respectively. The structure of the height adjusting device 21U is the same as that of the height adjusting device 21 shown in FIG.

The upper ends of the elevating cords C1U and C2U whose lower ends are attached to the intermediate rail 7U are guided to the left in the head box 1 via the support member 3U having a turning pulley, respectively, and guide the cord guide 5U and the braking device 6U. Then, it is inserted into the cord stopper 4U and is led out to the outside from the cord outlet 16a of the operating device 16 provided at the left end of the head box 1.

The structure of the code guide 5U and the braking device 6U is the same as that of the code guide 5 and the braking device 6 shown in FIG. 1, and the function of the code stopper 4U is also the same as that of the code stopper 4 shown in FIG.

The ends of the elevating cords C1U and C2U derived to the outside from the code outlet 16a are connected to the upper end of the operation code 8U by the code equalizer 9U, and the lower end of the operation code 8U is attached to the intermediate rail 7U. Here, in the code equalizer 9U, the range in which the lowering speed of the upper honeycomb-shaped fabric 2U by the braking device 6U is braked to a predetermined value or less is regulated by the contact / non-contact of the connecting portion with the head box 1. ing.

As described above, in the honeycomb screen of the present embodiment, a plurality of (two in this example) elevating cords C1U and C2U are pulled out from the cord outlet 16a of the head box 1 or pulled into the head box 1 in the middle. The upper honeycomb-shaped fabric 2U can be directly pulled up and down by raising and lowering the rail 7U.

Further, in the honeycomb screen shown in FIG. 14, the foldable lower honeycomb-shaped fabric 2L is suspended and supported from the intermediate rail 7U by using the fabric retainer, and the lower end of the lower honeycomb-shaped fabric 2L uses the fabric retainer. Is attached to the upper surface of the bottom rail 7L. The structures of the lower honeycomb-shaped fabric 2L and the fabric retainer are the same as those of the honeycomb-shaped fabric 2 and the fabric retainers 12 and 13, respectively shown in FIG.

Further, a plurality of elevating cords (two elevating cords C1L and C2L in this example) are hung from the head box 1, and an insertion hole 2d formed in the center of each partition wall portion 2c in the lower honeycomb-shaped fabric 2L in the front-rear direction. The lower ends of the elevating cords C1L and C2L are attached to the bottom rail 7L.

Height adjusting devices 21L are provided at the lower ends of the elevating cords C1L and C2L, respectively. The structure of the height adjusting device 21L is the same as that of the height adjusting device 21 shown in FIG.

The upper ends of the elevating cords C1L and C2L to which the lower ends are attached to the bottom rail 7L are guided to the right in the head box 1 via the support members 3L having the turning pulleys, respectively, and guide the cord guide 5L and the braking device 6L. Then, it is inserted into the cord stopper 4L and led out to the outside from the cord outlet 15a of the operating device 15 provided at the right end of the head box 1.

The structure of the code guide 5L and the braking device 6L is the same as that of the code guide 5 and the braking device 6 shown in FIG. 1, and the function of the code stopper 4L is also the same as that of the code stopper 4 shown in FIG.

The ends of the elevating cords C1L and C2L derived to the outside from the code outlet 15a are connected to the upper end of the operation code 8L by the code equalizer 9L, and the lower end of the operation code 8L is attached to the bottom rail 7L. Here, in the code equalizer 9L, the range in which the lowering speed of the lower honeycomb-shaped fabric 2L by the braking device 6L is braked to a predetermined value or less is regulated by the contact / non-contact of the connecting portion with the head box 1. ing.

As described above, the honeycomb screen of the present embodiment has a bottom by pulling out a plurality of (two in this example) elevating cords C1L and C2L from the cord outlet 15a of the head box 1 or pulling them into the head box 1. The lower honeycomb-shaped fabric 2L can be directly pulled up and down by raising and lowering the rail 7L.

Therefore, if the elevating cords C1L and C2L are pulled out from the head box 1, the bottom rail 7L is pulled up, and the elevating cords C1L and C2L (or the cord equalizer 9L or the operation code 8L) are released to activate the lock of the cord stopper 4L. For example, the elevating cords C1L and C2L can be prevented from being pulled into the head box 1 and the bottom rail 7L can be suspended and supported at a desired position.

Then, the elevating cords C1L and C2L are slightly pulled out from the head box 1 to unlock the cord stopper 4L, and then the elevating cords C1L and C2L (or the cord equalizer 9L or the operation code 8L) are released to release the elevating cord C1L. , C2L can be pulled into the head box 1 and the bottom rail 7L can be lowered by the weight of the bottom rail 7L and the lower honeycomb-shaped fabric 2L.

Further, if the elevating cords C1U and C2U are pulled out from the head box 1, the intermediate rail 7U is pulled up, and the elevating cords C1U and C2U (or the cord equalizer 9U or the operation code 8U) are released to activate the lock of the cord stopper 4U. For example, the elevating cords C1U and C2U can be prevented from being pulled into the head box 1, and the intermediate rail 7U can be suspended and supported at a desired position.

Then, the elevating cords C1U and C2U are slightly pulled out from the head box 1 to unlock the cord stopper 4U, and then the elevating cords C1U and C2U (or the cord equalizer 9U or the operation code 8U) are released to release the elevating cords C1U. , C2U can be pulled into the head box 1 and the intermediate rail 7U can be lowered by the weight of the intermediate rail 7U and the upper honeycomb-shaped fabric 2U.

As described above, in the honeycomb screen of the present embodiment, the intermediate rail 7U is pulled up to just below the head box 1, and the upper honeycomb-shaped fabric 2U is folded between the head box 1 and the intermediate rail 7U, and the bottom rail 7L is folded. When is lowered, the lower honeycomb-shaped fabric 2L is suspended and supported from the head box 1.

Further, when the intermediate rail 7U is lowered to the bottom rail 7L with the bottom rail 7 lowered to the lower limit position, the lower honeycomb-shaped fabric 2L is folded between the intermediate rail 7U and the bottom rail 7L, and the head box is formed. The upper honeycomb-shaped fabric 2U is suspended and supported between 1 and the intermediate rail 7U.

Further, when the bottom rail 7L is pulled up to the upper limit and opened, the upper honeycomb shape is formed between the head box 1 and the bottom rail 7L only by pulling up the bottom rail 7L without pulling up the intermediate rail 7U. The dough 2U and the lower honeycomb-shaped dough 2L can be folded.

As described above, even in the honeycomb screen as shown in FIG. 14, the descending speeds of the honeycomb-shaped fabrics 2L and 2U can be braked to a predetermined value or less by the cord guides 5L and 5U and the braking devices 6L and 6U. It is possible to suppress noise from the honeycomb-shaped fabric 2 (a rustling sound presumed to be caused by one or more of the change in air pressure in the cell, static electricity, and the hardness of the fabric) that may occur by the conventional technique.

Further, as shown in FIG. 14, even in the honeycomb screen, even when the insertion holes 2d of the honeycomb-shaped fabrics 2L and 2U are reduced in diameter, the wear of the elevating cord is reduced by the speed control by the braking devices 6L and 6U, respectively. Therefore, it is possible to improve the quality by suppressing the dust due to the wear and keeping the dust in the cells of the honeycomb-shaped fabrics 2L and 2U, respectively.

Further, as shown in FIG. 14, even in the honeycomb screen, the height adjusting device 21 can suppress the collision sound that may occur when the respective honeycomb-shaped fabrics 2L and 2U vigorously drop by their own weight.

Further, as shown in FIG. 14, even in the honeycomb screen, it is preferable to provide the cushioning material 11 on the lower surface of the bottom rail 7L in order to surely prevent the collision noise. The cushioning material 11 is made of rubber or a sponge-like synthetic resin, and is attached to the lower surface of the bottom rail 7 in the present embodiment. A part of the cushioning material 11 is provided with an opening 11a so that the height adjusting device 21 can be rotated by a rotating jig such as a flat-blade screwdriver or a coin.

As described above, even when the honeycomb screen is configured as shown in FIG. 14, all the actions and effects of the honeycomb screen shown in FIG. 1 are included.

[Overall configuration of the pleated screen as a shielding device of another embodiment]
By the way, in the shielding device shown in FIGS. 1 and 14, a honeycomb-shaped fabric 2 (or 2L, 2U) is used as a shielding material, and inside the honeycomb-shaped fabric 2 (or 2L, 2U), the elevating cord C1. Since the rail (bottom rail 7,7L or intermediate rail 7U) is suspended and supported by penetrating C2 (or C1L, C1U, or C2L, C2U), the shielding material is fully closed (lower limit of the bottom rail 7). At times), the elevating cord can be hidden from the front. In this way, by hiding the elevating cord so that it cannot be seen from the front view, it is possible to improve the design.

In other words, in order to hide the elevating cord so that it cannot be seen from the front when the shielding material is fully closed (at the lower limit of the bottom rail 7), for example, the pleated fabric is hung from the head box 1 twice in the front and rear. It is also effective to suspend and support the rail by hanging the elevating cord between the pleated fabrics before and after that.

Further, even when one piece of pleated fabric is hung from the head box 1 as a shielding material, the elevating cord cannot be seen from the front when the pleated fabric 2P is fully closed (at the lower limit of the bottom rail 7), for example, in the figure. As illustrated in 15, a flexible narrow member 18 which is wider than the elevating cords C1 and C2 but has a sufficient width to hide the elevating cords C1 and C2 is suspended and supported from the head box 1. It can also be configured. Such a narrow member 18 can be formed of a cloth or a tape-shaped synthetic resin, and can also be made into a ladder shape depending on the application.

15 (a) and 15 (b) are a front view and a partial side view showing a schematic configuration of a pleated screen as a shielding device according to another embodiment of the present invention, respectively.

In the pleated screen shown in FIG. 15, the pleated fabric 2P that can be folded in a zigzag shape along the vertical direction is suspended and supported from the head box 1 by using the fabric retainer 12, and the lower end of the pleated fabric 2P is supported by the fabric retainer. It is attached to the upper surface of the bottom rail 7 using (not shown). The structure of the fabric retainer is the same as that of the fabric retainers 12 and 13 shown in FIG.

Then, as shown in FIG. 15B, the pitch holding cord 14 hangs down the back surface of the pleated fabric 2P from the head box 1 and is attached to the bottom rail 7. The pitch holding cord 14 is provided with a large number of annular holding portions 14a at equal intervals along the vertical direction, and the annular holding portions 14a hold the pleated fabric 2P at regular intervals while penetrating the corresponding elevating cord. ing.

Normally, the pleated fabric 2P is provided with an insertion hole 2d. Therefore, as shown in FIG. 15A, a plurality of elevating cords (two elevating cords C1 and C2 in this example) are hung from the head box 1 and passed through the respective insertion holes 2d in the pleated fabric 2P. The lower ends of the elevating cords C1 and C2 are attached to the bottom rail 7.

In particular, the pleated screen shown in FIG. 15 prevents the elevating cord from being seen from the front when the pleated fabric 2P is fully closed (at the lower limit of the bottom rail 7) even when the pleated fabric 2P is hung from the head box 1. In order to do so, the elevating cords C1 and C2 are hidden by a narrow member 18 that is suspended and supported from the head box 1. Each narrow member 18 is held together with the pleated cloth 2 by the upper and lower cloth holders. Each narrow member 18 is made of a flexible material that is wider than the elevating cords C1 and C2 but has a sufficient width to hide the elevating cords C1 and C2, for example, in the form of a cloth or tape. It can be formed of synthetic resin. This makes it possible to improve the design.

A height adjusting device 21 similar to that shown in FIG. 1 is provided at the lower ends of the elevating cords C1 and C2, respectively.

The upper ends of the elevating cords C1 and C2 to which the lower ends are attached to the bottom rail 7 are guided to the left in the head box 1 via the support members 3 having the turning pulleys, respectively, and are the same as those shown in FIG. It is inserted into the cord stopper 4 via the cord guide 5 and the braking device 6, and is led out to the outside from the cord outlet 15a of the operating device 15 provided at the right end of the headbox 1.

The ends of the elevating cords C1 and C2 derived to the outside from the code outlet 15a are connected to the upper end of the operation code 8 by the code equalizer 9, and the lower end of the operation code 8 is attached to the bottom rail 7. Here, in the code equalizer 9, the range in which the lowering speed of the pleated fabric 2P by the braking device 6 is braked to a predetermined value or less is regulated by the contact / non-contact of the connecting portion with respect to the head box 1. ..

As described above, the pleated screen shown in FIG. 15 has a bottom by pulling out a plurality of (two in this example) elevating cords C1 and C2 from the cord outlet 15a of the headbox 1 or pulling them into the headbox 1. The raising and lowering of the pleated fabric 2P by raising and lowering the rail 7 can be directly pulled.

Therefore, if the elevating cords C1 and C2 are pulled out from the head box 1, the bottom rail 7 is pulled up, and the elevating cords C1 and C2 (or the cord equalizer 9 or the operation code 8) are released to activate the lock of the cord stopper 4. For example, the bottom rail 7 can be suspended and supported at a desired position by preventing the elevating cords C1 and C2 from being pulled into the headbox 1.

Then, the elevating cords C1 and C2 are slightly pulled out from the head box 1 to unlock the cord stopper 4, and then the elevating cords C1 and C2 (or the cord equalizer 9 or the operation code 8) are released to cause the elevating cord C1. , C2 can be pulled into the head box 1 and the bottom rail 7 can be lowered by the weight of the bottom rail 7 and the pleated fabric 2P.

As described above, also in the pleated screen shown in FIG. 15, the descending speed of the pleated fabric 2P can be braked to a predetermined value or less by the cord guide 5 and the braking device 6, and the noise from the pleated fabric 2P can be suppressed. can.

Further, also in the pleated screen shown in FIG. 15, even when the diameter of the insertion hole 2d of the pleated fabric 2P is reduced, the wear of the elevating cord can be reduced by speed control by each braking device 6, so that the quality is improved. Can be made to.

Further, also in the pleated screen shown in FIG. 15, the collision sound that may occur when the pleated fabric 2P vigorously drops its own weight can be suppressed by the height adjusting device 21.

Further, also in the pleated screen shown in FIG. 15, it is preferable to provide a cushioning material 11 on the lower surface of the bottom rail 7 in order to surely prevent the collision noise. The cushioning material 11 is made of rubber or a sponge-like synthetic resin, and is attached to the lower surface of the bottom rail 7 in the present embodiment. A part of the cushioning material 11 is provided with an opening 11a so that the height adjusting device 21 can be rotated by a rotating jig such as a flat-blade screwdriver or a coin.

As described above, the pleated screen shown in FIG. 15 also includes all the actions and effects of the honeycomb screen shown in FIG. 1, especially when the pleated fabric 2P is fully closed (at the lower limit of the bottom rail 7). Since each of the elevating cords C1 and C2 is concealed by a narrow member 18 suspended and supported from the head box 1 so that the elevating cord cannot be seen from the front view, the design can be improved.

[Overall configuration of horizontal blind as a shielding device of another embodiment]
Further, the narrow width member 18 described above is also effective for a horizontal blind. 16 (a) and 16 (b) are a front view showing a schematic configuration of a horizontal blind as a shielding device according to another embodiment of the present invention, and a side view showing a part thereof in a cross section.

In the horizontal blind shown in FIG. 16, the warp 17a of the ladder cord is suspended from the support member 3 in the head box 1, and the multi-stage slats 2S as a shielding material are supported by the large number of wefts 17b provided on the warp 17a. Ru. The lower end of the warp 17a is attached by a fixing member 19 on the lower surface of the bottom rail 7.

Normally, the slat 2S is provided with an insertion hole 2d (a notch may be used instead of the insertion hole 2d). Therefore, as shown in FIG. 16A, a plurality of elevating cords (two elevating cords C1 and C2 in this example) are hung from the head box 1 and passed through the respective insertion holes 2d in the pleated fabric 2P. The lower ends of the elevating cords C1 and C2 are attached to the bottom rail 7.

In particular, the horizontal blind shown in FIG. 16 has a head box so that the elevating cord cannot be seen from the front view and the rear view at the lower limit of the bottom rail 7 even when the slat 2S is suspended from the head box 1 by using the ladder cord. The elevating cords C1 and C2 are hidden from the front and back by the narrow member 18 forming a part of the ladder cord from 1. Each narrow member 18 is fixed integrally with the warp 18a of the ladder cord, the upper end of each narrow member 18 is located above the uppermost slat 2S, and the lower end of each narrow member 18 is the warp 17a. Together, they are attached by the fixing member 19 on the lower surface of the bottom rail 7.

Also in this example, each narrowing member 18 is made of a flexible material that is wider than the elevating cords C1 and C2 but is wide enough to hide the elevating cords C1 and C2, for example, fabric or. It can be formed of a tape-shaped synthetic resin. This makes it possible to improve the design. Further, as in this example, by providing the narrow member 18 before and after each of the elevating cords C1 and C2, deterioration of the elevating cords C1 and C2 due to sunlight or the like is prevented, and the braking quality for the braking device 6 is made constant. can do.

A height adjusting device 21 similar to that shown in FIG. 1 is provided at the lower ends of the elevating cords C1 and C2, respectively.

The upper ends of the elevating cords C1 and C2 to which the lower ends are attached to the bottom rail 7 are guided to the left in the head box 1 via the support members 3 having the turning pulleys, respectively, and are the same as those shown in FIG. It is inserted into the cord stopper 4 via the cord guide 5 and the braking device 6, and is led out to the outside from the cord outlet 15a of the operating device 15 provided at the right end of the headbox 1.

The ends of the elevating cords C1 and C2 derived to the outside from the code outlet 15a are connected to the upper end of the operation code 8 by the code equalizer 9, and the lower end of the operation code 8 is attached to the bottom rail 7. Here, in the code equalizer 9, the range in which the lowering speed of the pleated fabric 2P by the braking device 6 is braked to a predetermined value or less is regulated by the contact / non-contact of the connecting portion with respect to the head box 1. ..

As described above, the horizontal blind shown in FIG. 16 has a bottom by pulling out a plurality of (two in this example) elevating cords C1 and C2 from the cord outlet 15a of the headbox 1 or pulling them into the headbox 1. It is possible to directly pull the slats 2S up and down by raising and lowering the rail 7.

Therefore, if the elevating cords C1 and C2 are pulled out from the head box 1, the bottom rail 7 is pulled up, and the elevating cords C1 and C2 (or the cord equalizer 9 or the operation code 8) are released to activate the lock of the cord stopper 4. For example, the bottom rail 7 can be suspended and supported at a desired position by preventing the elevating cords C1 and C2 from being pulled into the headbox 1.

Then, the elevating cords C1 and C2 are slightly pulled out from the head box 1 to unlock the cord stopper 4, and then the elevating cords C1 and C2 (or the cord equalizer 9 or the operation code 8) are released to cause the elevating cord C1. , C2 can be pulled into the head box 1 and the bottom rail 7 can be lowered by the weight of the bottom rail 7 and the slats 2S.

As described above, even in the horizontal blind shown in FIG. 16, the descending speed of the slat 2S can be braked to a predetermined value or less by the code guide 5 and the braking device 6, and the noise from the slat 2S can be suppressed.

Further, even in the horizontal blind shown in FIG. 16, even when the diameter of the insertion hole 2d of the slats 2S is reduced, the wear of the elevating cord can be reduced by the speed control by each braking device 6, so that the quality is improved. be able to.

Further, even in the horizontal blind shown in FIG. 16, the height adjusting device 21 can suppress the collision sound that may occur when the slats 2S vigorously descend by their own weight.

Further, even in the horizontal blind shown in FIG. 16, it is preferable to provide a cushioning material 11 on the lower surface of the bottom rail 7 in order to surely prevent the collision noise. The cushioning material 11 is made of rubber or a sponge-like synthetic resin, and is attached to the lower surface of the bottom rail 7 in the present embodiment. A part of the cushioning material 11 is provided with an opening 11a so that the height adjusting device 21 can be rotated by a rotating jig such as a flat-blade screwdriver or a coin. The fixing member 19 described above is arranged so as to avoid the cushioning material 11.

As described above, even in the horizontal blind shown in FIG. 16, all the actions and effects of the honeycomb screen shown in FIG. 1 are included, and in particular, the elevating cord can be seen from the front view and the rear view at the lower limit of the bottom rail 7. In order to prevent this from happening, the elevating cords C1 and C2 are hidden in the front and rear by a narrow member 18 that is suspended and supported from the head box 1, so that the design is improved and the elevating cords C1 and C1 due to sunlight or the like are used. Deterioration of C2 can be prevented, and the braking quality for the braking device 6 can be made constant.

Although the present invention has been described above with reference to examples of specific embodiments, the present invention is not limited to the examples of the above-described embodiments, and can be variously modified without departing from the technical idea. For example, in the example of the above-described embodiment, an example using a centrifugal brake structure has been described as an example of a braking device, but a braking force is generated by an arbitrary method such as one using friction or one using a one-way clutch. can do. In addition, from the viewpoint of preventing collision noise when the bottom rail at the lower end of the shielding material collides with the floor surface, not only the direct pulling operation but also the elevating cord can be raised and lowered by the take-up shaft that rotates by the rotation operation of the drive shaft. It is also effective in the case of a shielding device.

According to the present invention, it is possible to reduce the noise from the shielding material related to the self-weight drop of the shielding material, or it is possible to suppress dust due to wear of the elevating cord and improve the quality. Further, according to the present invention, it is possible to prevent a collision noise when the bottom rail at the lower end of the shielding material collides with the floor surface. Therefore, it is particularly useful for applications of a shielding device that directly pulls up and down the shielding material.

1 Headbox 2 Honeycomb-like fabric 2U Upper honeycomb-like fabric 2L Lower honeycomb-like fabric 3,3U, 3L Support member 4,4U, 4L Cord stopper 5,5U, 5L Code guide 6,6U, 6L Braking device 7,7L Bottom rail 7U Intermediate rail 8,8U, 8L Operation code 9,9U, 9L Code equalizer 10 Safety member 11 Buffering agent 12,13 Fabric retainer 15,16 Operation device 21,21U, 21L Height adjustment device C1, C2, C1U, C2U, C1L, C2L lift cord

Claims (12)

It is a shielding device that raises and lowers the shielding material suspended from the head box by directly pulling the lifting cord.
A braking device that brakes the movement of the elevating cord so that the descent speed of the shielding material is equal to or less than a predetermined value.
A fabric retainer that suspends the shielding material and can support the bottom of the braking device so as to suppress vertical fluctuation of the braking device.
A cloaking device characterized by being provided with. The shielding device according to claim 1, wherein the shielding material is made of a foldable honeycomb-shaped fabric. One end of the elevating cord is covered from the head box through the inside of the shielding material and attached to the hanging rail, and the other end of the elevating cord can be directly pulled from the head box via the braking device. The shielding device according to claim 1 or 2, wherein the shielding device is derived from the above. It has a connecting portion that directly connects the end of the elevating cord hanging from the head box via the braking device to the operation cord, and the shielding material is abutted or non-contacted with the connecting portion to the head box. The shielding device according to any one of claims 1 to 3, wherein the range for braking the descending speed to a predetermined value or less is regulated. The shielding device according to any one of claims 1 to 4, wherein the braking device is further provided with a code guide for introducing and deriving the elevating cord. The shielding device according to claim 5, wherein the elevating cord is composed of a plurality of elevating cords, and the code guide has a code guiding means for separately guiding the elevating cords when introducing or deriving the plurality of elevating cords. .. The cord guide has a fixing means for fixing and holding the braking device.
5. The described shielding device. The shielding device according to claim 7, wherein the opening has a shape that engages with a front-rear / left-right planar shape at the bottom of the cord guide. The eighth aspect of the present invention is characterized in that a fixing portion for engaging with and fixing the opening is provided on one or both side walls of the front, rear, left and right sides of the bottom of the cord guide. Cloaking device. 15. The shielding device according to any one item. One end of the elevating cord is covered from the head box through the inside of the shielding material and attached to the hanging rail, and the other end of the elevating cord can be directly pulled from the head box via the braking device. Derived to
One of claims 1 to 10, wherein the rail is provided with a height adjusting device capable of adjusting the height of the rail by adjusting the length of the elevating cord. The shielding device described in. The shielding device according to claim 11, wherein a cushioning material is provided on the lower surface of the rail.

Images