JP6670540B2 - Horizontal blinds - Google Patents

Description

  The present invention relates to a horizontal blind for suspending and supporting a multi-stage slat from a head box via a ladder cord.

  The horizontal blind is capable of adjusting the amount of solar radiation taken indoors by raising and lowering and tilting a multi-stage slat supported by a ladder cord suspended from a head box.

  For example, the bottom rail is arranged at the lower end of the ladder cord, and the lifting cord attached to the bottom rail is drawn into and out of the head box, thereby raising and lowering the slat by raising and lowering the bottom rail. Can be done.

  As one type of the horizontal blind, a horizontal blind in which an upper slat group and a lower slat group can be adjusted at different angles is known (for example, see Patent Document 1).

JP 2009-235670A

  As described above, there is a horizontal blind in which the upper slat group and the lower slat group can be adjusted at different angles.

  In such a conventional horizontal blind, a first ladder cord supporting the upper slat group and a second ladder cord supporting the lower slat group are provided, and upper ends of the first and second ladder cords are respectively taken. By operating the rotation of the plurality of hanging drums to be worn, the upper slat group and the lower slat group can be adjusted at different angles.

  A tilt pole suspended from one end of the head box is used for this angle adjustment operation. When the tilt pole is rotated, the angle adjustment shaft rotates via the gear box, and the rotation of the angle adjustment shaft rotates each of the suspension drums with idling, thereby connecting the upper slat group and the lower slat group. The angle can be adjusted at different angles.

  However, in consideration of the fact that such a rotation operation of the tilt pole causes a burden on the operator's wrist and fingers, a dedicated tilt that enables the movement of the tilt code, not the rotation operation, is similar to the operation of lifting and lowering the bottom rail. A mode in which the operation code is pulled is also conceivable.

  On the other hand, in order to configure the pull operation using the tilt operation code, since the slat weight and the loss of handling of the tilt code become the operation force required for the pull operation, the above operation load is reduced. However, there is also a problem that the operating force increases.

  For this reason, a technique for reducing the operation load related to the angle adjustment operation of the slat and reducing the operation force is desired.

  An object of the present invention is to provide a horizontal blind in which a plurality of slats are suspended and supported from a head box via a ladder cord in view of the above-mentioned problem.

The horizontal blind of the present invention is a horizontal blind that suspends and supports multiple slats from a head box via a ladder cord,
A tilt cord suspended from the head box so as to adjust the angle of one or more but not all of a plurality of slats suspended and supported through the ladder cord from the head box; A tilt operation code that hangs down to allow adjustment, and a tilt operation load reduction device that converts a movement load of the tilt code to reduce an operation force of the tilt operation code , wherein the tilt operation load reduction device includes: A first pulley for rewindably attaching the tilt cord, and a second pulley for removably attaching the tilt operation cord, wherein the first pulley and the second pulley are interlocked with each other. The winding diameter of the second pulley is larger than the winding diameter of the first pulley. The second pulley is configured to rotate in conjunction with the same central axis, and the tilt cord is less than the number of the ladder cords, and the number of lifting cords for lifting and lowering the multi-stage slats. as less than, characterized that you have been suspended respectively along the ladder cord is suspended from left and right sides of the headbox.

  Further, in the horizontal blind of the present invention, a stopper device capable of locking movement of the code is provided on one of the tilt code and the tilt operation code, and the stopper device is provided in a case of the tilt operation load reducing device. Characterized by being housed in

  ADVANTAGE OF THE INVENTION According to this invention, while reducing the operation | work burden regarding the angle adjustment operation of a slat, the operating force can be reduced.

It is a front view showing the schematic structure of the horizontal blind of one embodiment by the present invention. (A) is a side view which shows the schematic structure of the support member in the horizontal blind of one Embodiment by this invention, (b), (c) is explanatory drawing which shows the connection state of a slat, a ladder code, and a tilt code. It is. (A) is an explanatory view of a lowering operation in the horizontal blind of one embodiment of the present invention, and (b) is an explanatory view of a horizontal operation in the horizontal blind of one embodiment of the present invention. (A) is an explanatory view of the fully closing operation in the horizontal blind of one embodiment according to the present invention, and (b) is an explanatory view of the reverse fully closing operation in the horizontal blind of one embodiment according to the present invention. (A) is an explanatory view of an upper shielding / lower lighting operation in the horizontal blind of one embodiment of the present invention, and (b) is an explanation of an upper lighting / lower shielding operation of the horizontal blind of one embodiment of the present invention. FIG. (A) is a front view which shows the peripheral structure of the tilt operation load reduction apparatus of Example 1 in the horizontal blind of one Embodiment by this invention, (b) is implementation by the horizontal blind of one Embodiment by this invention FIG. 4 is a plan view showing a peripheral configuration of a tilt operation load reducing device of Example 1. (A) is a front view explaining the pull-out operation | movement of the tilt code by the tilt operation load reduction device of Example 1 in the horizontal blind of one embodiment by this invention, (b) is one embodiment of this invention. It is a top view explaining the pull-in operation | movement of a tilt code by the tilt operation load reduction device of Example 1 in a horizontal blind. (A) is a front view which shows the peripheral structure of the tilt operation load reduction apparatus of Example 2 in the horizontal blind of one Embodiment by this invention, (b) is implementation by the horizontal blind of one Embodiment by this invention FIG. 9 is a plan view showing a peripheral configuration of a tilt operation load reducing device of Example 2 .

  Hereinafter, a horizontal blind 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 horizontal blind shown in FIG. The left direction in the figure is defined as the left side of the horizontal blind, and the right direction in the figure is defined as the right side of the horizontal blind. When the side on which the front view of FIG. 1 is viewed is referred to as the front side (indoor side) and the opposite side is referred to as the rear side (or outdoor side), and referred to as the front-back direction of the horizontal blind, the illustration in the front view of FIG. The direction perpendicular to the plane.

(overall structure)
FIG. 1 is a front view showing a schematic configuration of a horizontal blind of one embodiment according to the present invention. In the horizontal blind shown in FIG. 1, a plurality of slats 4 are suspended and supported via ladder cords 12 hanging from a central portion of a head box 1 and right and left sides, and a bottom rail 14 is provided at a lower end of the ladder cord 12. Are suspended and supported.

  An elevating cord 15 is suspended from and supported by the head box 1 and a ladder cord 12 on the outdoor side, and a bottom rail 14 is attached to a lower end of the elevating cord 15.

  A support member 5 for suspending and supporting the ladder cord 12 and the elevating cord 15 is provided in the head box 1, and a hexagonal rod-shaped drive shaft 17 is inserted through the support member 5.

  One end of a tilt cord 16 is connected to a ladder cord 12 hanging from both left and right sides of the head box 1. More specifically, the slats 4 are divided into an upper slat region 4B composed of an upper slat group and a lower slat region 4A composed of a lower slat group, and at a position dividing the upper slat region 4B and the lower slat region 4A, One end of the tilt cord 16 is connected to one of the ladder cords 12 (in this example, the indoor side) among the ladder cords 12 that support both ends of the slats 4 in the front-rear width direction by the attachment portions 16a. The other end of the tilt cord 16 is attached to a tilt operation load reducing device 10 described later in detail via a pulley 53 (see FIG. 2A) in the support member 5 that hangs the tilt cord 16. Instead of the pulley 53, a guide groove or the like for simply guiding the tilt cord 16 may be used.

(Support member)
FIG. 2A is a side view showing a schematic configuration of the support member 5 in the horizontal blind of one embodiment according to the present invention, and FIGS. 2B and 2C are slats 4, a ladder cord 12, and a tilt cord. It is explanatory drawing which shows the connection state of 16. As shown in FIGS. 1 and 2A, a tilt drum 52 and a take-up shaft 51 integrally formed on the support member 5 are rotatably supported by the case 20, and the tilt drum 52 and the take-up shaft 51 are provided. The drive shaft 17 is inserted so as not to rotate relatively. Therefore, when the drive shaft 17 is rotated, the tilt drum 52 and the winding shaft 51 are integrally rotated.

  An elastic torsion coil spring (not shown) is fitted into the tilt drum 52, and the ladder cord 12 is engaged with both ends of the torsion coil spring, so that the ladder cord 12 is mounted on the tilt drum 52. . The torsion coil spring generates a predetermined frictional force on the tilt drum 52, and always raises and lowers the warp of the ladder cord 12 with the rotation of the tilt drum 52. When each of the slats 4 is rotated substantially vertically, and one end of the torsion coil spring comes into contact with the projection inside the case 20 and the diameter of the torsion coil spring expands, the ladder cord 12 moves in the same direction as the warp. Is prevented, and the tilt drum 52 idles with respect to the torsion coil spring. For details of the suspension member for the ladder cord 12 using such a torsion coil spring, see, for example, Japanese Patent Application Laid-Open No. 2010-150842.

  The upper end of the lifting cord 15 is wound around the winding shaft 51. Then, when the winding shaft 51 is rotated in the winding direction of the elevating cord 15, the elevating cord 15 is wound on the winding shaft 51 and the bottom rail 14 is raised, and each slat 4 is moved downward by the bottom rail 14. Are sequentially pushed up. When the winding shaft 51 is rotated in the rewinding direction of the lifting cord 15, the lifting cord 15 is rewound from the winding shaft 51 and the bottom rail 14 descends, and each slat 4 is sequentially laddered from the upper one. It returns to the state supported by the cord 12.

  When the bottom rail 14 descends, the tilt drum 52 is rotated in the same direction as the winding shaft 51, and is rotated via the ladder cord 12 in the fully closed direction in which the convex surface of each slat 4 is on the outside. When the slats 4 are lifted together with the bottom rail 14, each slat 4 is rotated in the reverse fully closed direction in which the convex surface is on the indoor side.

  In FIG. 2A, the tilt code 16 is shown in parallel with the ladder code 12 in order to enhance understanding of the present invention. As shown in (c), it is preferable to knit the tilt cord 16 into the ladder cord 12 in order to improve aesthetic appearance.

  More specifically, the tilt cord 16 reaches the vicinity of the uppermost slat 4 of the lower slat region 4A while knitting between the weft yarns 12a and 12b supporting each slat 4 of the upper slat region 4B, One end thereof is connected to the ladder cord 12 by a mounting portion 16a. That is, in the upper slat area 4B, the tilt cord 16 is knitted between the wefts 12a and 12b of the upper slat 4 from one direction and then knitted between the wefts 12a and 12b of the lower slat 4 from the other direction. I have. In the example shown in FIGS. 2B and 2C, an example is shown in which the tilt cord 16 is woven for each slat 4 in the upper slat region 4B. Tilt cords 16 may be woven between wefts 12a and 12b of slat 4 at arbitrary intervals such as every other interval.

  Referring to FIG. 1, an operation device 7 for rotating and driving a drive shaft 17 is attached to the right end of the head box 1. A pulley 3 is rotatably supported on the base end side of the operation device 7, and an endless operation cord (for example, a ball chain) 2 is mounted on the pulley 3 and hangs downward. The pulley 3 can be driven to rotate by operating the operation code 2.

  A gear (not shown) is formed integrally with the pulley 3, and a transmission gear (not shown) rotatably supported in the head box 1 is meshed with the gear. Therefore, when the pulley 3 is rotated, the transmission gear rotates. The operating device 7 is configured to transmit the rotation of the transmission gear to the drive shaft 17. Further, a stopper device (not shown) is provided in the operating device 7, and this stopper device prevents the bottom rail 14 from lowering its own weight when the operation cord 2 is released after the lifting operation of the bottom rail 14. Has a known function.

  With such a configuration, when the operation cord 2 is operated, the drive shaft 17 is rotated, and the multi-stage slats 4 supported by the ladder cord 12 suspended from the head box 1 are moved up and down, or in the fully closed state or reverse full state. The amount of solar radiation taken into the room can be adjusted by tilting in the closed state.

  For example, as shown in FIG. 3A, by operating the operation code 2, it is possible to rotate all the slats 4 in the direction in which the indoor side is concave so as to lower the bottom rail 14. it can. Conversely, for all the slats 4, the operation can be performed such that the bottom rail 14 is raised by rotating the slat 4 vertically in a direction in which the indoor side is a convex surface.

  Further, as shown in FIG. 3B, by operating the operation cord 2, after lowering the bottom rail 14 to the lower limit, all the slats 4 can be operated to be rotated in the horizontal direction and held. .

  Further, as shown in FIG. 4 (a), after the bottom rail 14 is lowered to the lower limit by the operation of the operation cord 2, all the slats 4 are vertically rotated in a direction in which the indoor side is a convex surface. 4B, the bottom rail 14 is lowered to the lower limit, and then all the slats 4 are vertically rotated in a direction in which the indoor side is concave. It can be operated to hold the state.

  Further, by operating the tilt operation code 8 hanging down from the left end side of the head box 1, each slat 4 in the upper slat area 4B and each slat 4 in the lower slat area 4A can be adjusted at different angles. It has become. For example, as shown in FIG. 5 (a), the operation of the operation cord 2 lowers the bottom rail 14 to the lower limit, and rotates all the slats 4 vertically in a direction in which the indoor side is a convex surface. From the state, by operating the tilt operation code 8, the tilt code 16 is pulled toward the head box 1, and the slats 4 in the lower slat area 4A are kept in a horizontal state (lighting state) while the slats 4 in the upper slat area 4B are kept in a shielded state. ) Can be operated so as to maintain the upper shielding / lower lighting state. Also, as shown in FIG. 5B, the operation of the operation code 2 lowers the bottom rail 14 to the lower limit, and all the slats 4 are turned in the horizontal direction from the horizontal state (lighting state) to the tilt operation code. By the operation of 8, the tilt cord 16 is pulled into the head box 1 side, and the upper slats 4 in the lower slat area 4A are shielded while the respective slats 4 in the upper slat area 4B are in the lighting state. Can be operated to hold.

  In order to realize such a tilt operation, as shown in FIG. 1, a guide section 13 for guiding a tilt operation code 8 hanging from the head box 1 is provided at a left end of the head box 1 via a guide section 13. A stopper device 11 for inserting the tilt operation code 8 and a tilt operation load reducing device 10 are provided.

  The guide portion 13 projects obliquely downward from one end of the head box 1, and the tilt operation code 8 hangs down from the guide portion 13. A tilt operation grip 9 is attached to one end of the tilt operation code 8.

  The other end of the tilt operation code 8 is attached to a tilt operation load reducing device 10 via a stopper device 11. The stopper device 11 operates the tilt operation code 8, pulls the tilt code 16 toward the head box 1, and then releases the tilt operation grip 9, so that the tilt code 16 moves by its own weight of the bottom rail 14 and the slat 4. It has the known function of locking so as to prevent The lock of the stopper device 11 is released by slightly pulling the tilt cord 16 into the head box 1 side (that is, pulling out the tilt operation code 8 from the head box 1 side), and the tilt of the bottom rail 14 or the slat 4 is caused by its own weight. The cord 16 is configured to be movable.

  The tilt operation load reducing device 10 functions to reduce the operation force when the tilt code 16 is moved by the pull-in operation of the tilt operation code 8 by a predetermined amount.

  Hereinafter, each embodiment of the tilt operation load reducing device 10 will be described in detail.

(Tilt operation load reduction device of Embodiment 1)
FIG. 6A is a front view illustrating a peripheral configuration of the tilt operation load reducing device 10 according to the first embodiment, and FIG. 6B is a plan view thereof. In the tilt operation load reducing device 10 of the first embodiment, a first pulley 74, a second pulley 73, and a plurality of guide bars 75 are mainly accommodated in a case 71 thereof.

  The other ends of the two tilt cords 16 each having one end connected to a ladder cord 12 hanging down from both left and right sides of the head box 1 are regulated by a guide bar 75 in the tilt operation load reduction device 10 to be a first pulley 74. It is attached so that it can be wound up.

  Further, the other end of the tilt operation cord 8 having one end attached to the tilt operation grip 9 is regulated by a guide bar 75 in the tilt operation load reduction device 10 via the guide portion 13 and the stopper device 11, and is controlled by the second pulley 73. It is attached so that it can be wound up.

  The first pulley 74 and the second pulley 73 are provided side by side so that they cannot rotate relative to each other based on the center shaft 72. When the first pulley 74 rotates, the second pulley 73 rotates, and the second pulley 73 rotates. When the 73 rotates, the first pulley 74 rotates. The winding diameter of the second pulley 73 is configured to be approximately twice the winding diameter of the first pulley 74.

  In the tilt operation load reducing device 10 according to the first embodiment configured as described above, as shown in FIG. 7A, when the tilt cord 16 is pulled out by the weight of the bottom rail 14 and the slat 4, the first pulley is pulled out. Since the 74 and the second pulley 73 rotate counterclockwise in the drawing, the tilt operation cord 8 is drawn into the head box 1 side, and the position of the tilt operation grip 9 also rises.

  On the other hand, as shown in FIG. 7B, when the tilt operation cord 8 is pulled out from the head box 1 by operating the tilt operation grip 9, the first pulley 74 and the second pulley 73 rotate clockwise in the drawing. Therefore, the tilt code 16 is drawn into the headbox 1 side.

  At this time, since the operation force of the pulling operation by the tilt operation grip 9 is configured so that the winding diameter of the second pulley 73 is approximately twice the winding diameter of the first pulley 74, the tilt cord 16 is moved. It requires only about half the operating force as compared with the case of directly retracting.

  Therefore, the operation force of the pulling operation by the tilt operation grip 9 is reduced, and the operation can be performed so as to maintain the upper shielding / lower lighting state or the upper lighting / lower shielding state shown in FIG. As a result, it is possible to reduce the operation load related to the angle adjustment operation of the slat 4 and to reduce the operation force.

(Tilt operation load reduction device of Embodiment 2)
FIG. 8A is a front view illustrating a peripheral configuration of the tilt operation load reducing device 10 according to the second embodiment, and FIG. 8B is a plan view thereof. The same components as those in the first embodiment are denoted by the same reference numerals. In the tilt operation load reducing device 10 according to the second embodiment, a first pulley 74, a second pulley 73, a plurality of guide bars 75, and a stopper device 11 are mainly accommodated in a case 71 thereof.

  The tilt operation load reducing device 10 according to the second embodiment is an example in which a stopper device 11 is disposed at a lower side of the tilt operation load reducing device 10 so as to increase the storage efficiency in the head box 1.

  Similarly to the first embodiment, the other ends of the two tilt cords 16 each having one end connected to the ladder cord 12 hanging down from both left and right sides of the head box 1 are connected to a guide bar 75 in the tilt operation load reducing device 10. It is regulated and attached to the first pulley 74 so that it can be wound up.

  The other end of the tilt operation cord 8 having one end attached to the tilt operation grip 9 is guided by the guide bar 13 in the tilt operation load reducing device 10 via the guide portion 13 and inserted into the stopper device 11, and thereafter, It is regulated by the upper and lower guide bars 75 and is attached to the second pulley 73 so that it can be wound up.

  Also in the second embodiment, the first pulley 74 and the second pulley 73 are provided side by side so that they cannot rotate relative to each other based on the center shaft 72. When the first pulley 74 rotates, the second pulley 73 rotates. When the second pulley 73 rotates, the first pulley 74 rotates. The winding diameter of the second pulley 73 is configured to be approximately twice the winding diameter of the first pulley 74.

  The tilt operation load reducing device 10 according to the second embodiment configured as described above operates in the same manner as the first embodiment, and the operation force of the pull operation by the tilt operation grip 9 is such that the winding diameter of the second pulley 73 is equal to the first diameter. Since the winding diameter of the pulley 74 is set to be approximately twice as large as that of the case where the tilt cord 16 is directly pulled in, the operation force can be reduced to approximately half of the case where the tilt cord 16 is directly pulled in.

  In the tilt operation load reducing device 10 according to the second embodiment, the stopper device 11 is disposed on the lower side of the lower device to increase the storage efficiency in the head box 1. The degree of freedom of installation of each member such as can be increased.

  As described above, the present invention has been described with reference to the specific embodiments. However, the present invention is not limited to the above-described embodiments, and can be variously modified without departing from the technical idea thereof. For example, the tilt cords 16 may be composed of three or more instead of two, and as shown in Patent Document 2, a form in which the slats 4 of the upper slat area 4B and the lower slat area 4A are supported by individual cords. It may be. The slats 4 may be made of aluminum or wood, and may have a flat shape in addition to a shape having a convex surface as in the above-described embodiment.

  Alternatively, the ladder cord 12 near the uppermost slat 4 is tilted so as to adjust the angles of all the slats 4 supported by the ladder cord 12 without distinguishing between the upper slat area 4B and the lower slat area 4A. You may comprise so that the cord 16 may be connected.

Further, in each of the above-described embodiments, a specific example has been described regarding the arrangement relationship between the tilt operation load reducing device 10 and the stopper device 11, but a configuration in which the vertical and horizontal positional relationships are changed is also possible. For example , the stopper device 11 may be arranged below or above the tilt operation load reducing device 10.

  Therefore, the stopper device 11 is accommodated in the case of the tilt operation load reducing device 10 regardless of the vertical and horizontal positional relationship (preferably, the vertical positional relationship), so that the head box 1 The storage efficiency can be improved.

Further, in each of the above-described embodiments, an example has been described in which the operation force of the pull operation by the tilt operation grip 9 is substantially half that of the case where the tilt cord 16 is directly pulled in. is not limited to this, the operation force of the pulling operation by tilting the grip 9, expansion than the winding diameter of the other pulley the winding diameter of one pulley to reduce than when directly draw the tilt cord 16 It can be in the form of a diameter.

  Further, in each of the embodiments described above, the example in which the operation is performed by one tilt operation code 8 is described. However, the endless tilt operation code 8 is configured, and the operation of the endless tilt operation code 8 causes the tilt operation load to be increased. A conversion mechanism such as a gear may be provided to reduce the moving load of the tilt cord 16 by the reduction device 10.

  ADVANTAGE OF THE INVENTION According to this invention, since the operation | work burden regarding the angle adjustment operation of a slat can be reduced and the operating force can be reduced, it is useful for the application of the horizontal blind which hangs and supports many slats from a headbox.

DESCRIPTION OF SYMBOLS 1 Head box 2 Operation code 3 Pulley 4 Slat 4A Lower slat area 4B Upper slat area 5 Support member 7 Operating device 8 Tilt operating code 9 Tilt operating grip 10 Tilt operating load reduction device 11 Tilt operating code stopper device 12 Rudder code 13 Guide part for tilt operation code 15 Elevating cord 16 Tilt cord 16a Attachment part 17 Drive shaft 71 Case of tilt operation load reducing device 72 Center shaft 73 Second pulley 74 First pulley 75 Guide bar 76, 77 Gear 78, 79 Pulley 80 belt

Claims (2)

A horizontal blind that suspends and supports multiple slats from the headbox via ladder cords,
A tilt cord which is suspended from the head box so as to be able to adjust the angle of a predetermined number of slats which are not all but one or more of a plurality of slats suspended and supported via the ladder cord;
A tilt operation code that hangs from the head box so that the angle adjustment can be operated,
A tilt operation load reducing device that converts a movement load of the tilt code to reduce an operation force of the tilt operation code;
Equipped with a,
The tilt operation load reducing device,
A first pulley for rewindably attaching the tilt cord;
A second pulley for rewindably attaching the tilt operation code,
The first pulley and the second pulley are configured to rotate in conjunction with each other,
The winding diameter of the second pulley is larger than the winding diameter of the first pulley,
The first pulley and the second pulley are configured to rotate in conjunction with the same central axis,
The tilt code is smaller than the number of the ladder codes, and is smaller than the number of lifting codes for raising and lowering the multi-stage slats, along the ladder code hanging from the left and right sides of the head box. horizontal blinds characterized that you have been suspended respectively. A stopper device capable of locking the movement of the code is provided on one of the tilt code and the tilt operation code, and the stopper device is housed in a case of the tilt operation load reducing device. The horizontal blind according to claim 1 , wherein: