JP2019210744A - Solar shading device - Google Patents

Abstract

To provide a solar shading device capable of achieving suppression of slide resistance between a ladder member for overlapping and a slat and suppression of slat contact to each other at an overlapping section upon condensation, when a slat group unit expands and contracts in a longitudinal direction.SOLUTION: A solar shading device 10 of the present invention is provided with an attachment frame attached on a window frame and a slat group unit 12 having at least two pairs of adjacent slat groups 13, 14 suspended down from the attachment frame respectively and capable of being lifted and lowered. A part of the adjacent slat groups in a longitudinal direction is configured to be overlapped to each other, and the slat group unit is configured to expand and contract in a longitudinal direction by changing an overlapped length in a state that the adjacent slat group units overlap onto each other. A ladder member for overlapping is arranged in an overlapping section in a way that the overlapping section 33 suppresses slide resistance acted between adjacent slat groups when the slat group units expand and contract in a longitudinal direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a solar radiation shielding device in which a group of slats suspended from a ceiling, a wall, or a window frame via an attachment frame can be moved up and down. More specifically, by changing the total length of gaps where light leakage occurs by changing the polymerization length in a state where adjacent slat groups of the slat group units are superposed, the gaps between the adjacent slat groups and the outside of the slat group units are changed. The present invention relates to a solar radiation shielding device that prevents light leakage from a side surface.

  The present applicant has a solar shading comprising a set of mounting frames attached to a ceiling, a wall or a window frame, and a shielding unit having at least two sets of shielding bodies that can be lifted and lowered respectively from the set of mounting frames. A patent application was made for the device (see, for example, Patent Document 1 (Claim 1, Claim 12, Paragraph [0035], FIGS. 6 to 8)). In this solar radiation shielding device, a part of the longitudinal direction of the adjacent shields in the shield unit is configured to be superposed, and the shield length is changed by changing the polymerization length in a state where the adjacent shields are superposed. The unit is configured to expand and contract in the longitudinal direction. And at least two slat groups of slat group units each including a plurality of slats in which at least two sets of shield units of the shield unit extend in the horizontal direction and are provided at predetermined intervals in the vertical direction. In the at least two sets of slat groups, a part in the longitudinal direction of each slat of the adjacent slat group is superposed alternately. Furthermore, the ladder cord for polymerization that holds each slat in the overlapping portion of at least two sets of slat groups has a pair of vertical string for polymerization, and both ends fixed to the pair of vertical string for polymerization, and a plurality of slats are bonded at the overlapping portion. It consists of a horizontal strap for polymerization. The horizontal string for polymerization is configured to receive and hold each slat of at least two sets of slat groups at the overlapping portion, or hold each slat sandwiched.

  In the solar shading device configured as described above, light leakage from the gap between adjacent slat groups of the slat group unit or the outer surface of the slat group unit can be prevented by changing the total amount of gaps in which light leakage occurs. . Further, even if the slat group unit is extended or contracted, the adjacent slat groups of the slat group unit are kept in a polymerized state without being separated in the longitudinal direction, so that light can be prevented from leaking from between the adjacent slat groups. .

Japanese Patent Application No. 2017-084182

  However, in the solar radiation shielding device disclosed in the above-mentioned conventional patent document 1, when the horizontal strap for polymerization receives and holds each slat of the two sets of slat groups in the superposition part (see FIG. 6), the superposition part at the time of dew condensation. In this case, the slats are in close contact with each other, and there is a problem that a portion where the slats do not expand and contract is generated. Moreover, in the solar radiation shielding apparatus shown in the above-mentioned conventional patent document 1, when the horizontal strap for polymerization sandwiches and holds the slats of the two sets of slat groups (see FIGS. 7 and 8), the slats and the superposition are superposed. In some cases, the sliding resistance acting between the ladder cords increases, and the adjacent slat groups do not expand and contract smoothly.

  The first object of the present invention is to suppress sliding resistance between the ladder member for polymerization and the slat during expansion and contraction in the longitudinal direction of the slat group unit, and to maintain close contact between the slats at the overlapping portion during condensation. An object of the present invention is to provide a solar radiation shielding device capable of achieving both suppression. The second object of the present invention is to improve the followability of the adjacent slat group to the expansion and contraction operation by coexistence of the suppression of the sliding resistance and the suppression of the close contact, and thereby the adjacent slats during and after the expansion and contraction. An object of the present invention is to provide a solar radiation shielding device that can maintain a state in which both end portions in the longitudinal direction of the group are aligned in the vertical direction and can prevent the regularity of the slat group from being disturbed. The third object of the present invention is to raise the adjacent slat groups and fold them up so that even if the polymerization ladder member is exposed, the polymerization ladder member is loaded with the slats. An object of the present invention is to provide a solar radiation shielding device that can be regularly loosened and prevent the loosened state of the ladder member for polymerization from becoming uneven.

  The first aspect of the present invention is, as shown in FIGS. 1 to 4, an attachment frame 11 attached to a ceiling, a wall, or a window frame 16, and at least two sets that can be lowered and lowered respectively from the attachment frame 11. A solar shading device comprising a slat group unit 12 having adjacent slat groups 13, 14, wherein a part of the adjacent slat groups 13, 14 is superposed so that the adjacent slats are superposed. The slat group unit 12 is configured to expand and contract in the longitudinal direction by changing the polymerization length in a state in which the groups 13 and 14 are polymerized. The superposition | polymerization ladder member 31 is provided in the superposition | polymerization part 33 so that the sliding resistance which acts on the slat groups 13 and 14 which fit may be suppressed.

  The second aspect of the present invention is an invention based on the first aspect, and further, as shown in FIGS. 1 to 3, the overlapping ladder member 31 is adjacent to the adjacent slat groups 13 and 14 in the overlapping portion 33. A pair of vertical members for polymerization 31a, 31a disposed before and after, and a plurality of horizontal members for polymerization 31b installed at intervals in the longitudinal direction on the vertical members for polymerization 31a, 31a, Of the adjacent slat groups 13, 14, each slat 13a of one slat group 13 is held by each lateral member for polymerization 31b, and each of the adjacent slat groups 13, 14 has a slat 14a of the other slat group 14. Is configured to be positioned directly below each of the superposing lateral members 31b.

  A third aspect of the present invention is an invention based on the first aspect, and further, as shown in FIGS. 9 to 11, the overlapping ladder member 113 is adjacent to the slat groups 13 and 14 in the overlapping portion 33. A pair of vertical members 113a and 113a for polymerization, and a pair of horizontal members 113b and 113b for the polymerization vertical members 113a and 113a that are installed in pairs at intervals in the longitudinal direction. The slats 13a of one slat group 13 of the adjacent slat groups 13 and 14 are respectively sandwiched by a pair of horizontal members 113b and 113b for polymerization, and the other of the adjacent slat groups 13 and 14 is Each slat 14a of the slat group 14 is configured to be positioned directly below the pair of superposing lateral members 113b and 113b.

  In the solar radiation shielding apparatus according to the first aspect of the present invention, the polymerization ladder member is formed in the superposition portion so as to suppress the sliding resistance acting on the adjacent slat group in the superposition portion when the slat group unit expands and contracts in the longitudinal direction. Since it is provided, it is possible to achieve both suppression of sliding resistance between the ladder member for polymerization and the slat during expansion and contraction in the longitudinal direction of the slat group unit and suppression of adhesion between the slats at the overlapping portion during condensation. be able to. That is, when the slat group unit expands and contracts in the longitudinal direction, the sliding resistance generated between the adjacent slat group and the polymerization ladder member is suppressed by the arrangement of the slat group and the polymerization ladder member. . Specifically, although the load of each slat of one slat group is applied to the ladder member for polymerization, the load of each slat of the other slat group is not applied, so that one slat group and the other slat group each have It moves smoothly and can improve the followability of one slat group and the other slat group to the expansion and contraction operation. As a result, it is possible to maintain a state in which both ends in the longitudinal direction of adjacent slat groups during the expansion and contraction are aligned in the vertical direction, and to prevent the regularity of the slat groups from being disturbed. In addition, since the slat group unit expands and contracts in the longitudinal direction by changing the polymerization length in the state where the adjacent slat groups are polymerized, by changing the total amount of gaps in which light leakage occurs, Light leakage from the gap between adjacent slat groups and the outer surface of the slat group unit can be prevented. Further, even if the slat group unit is extended or contracted, the adjacent slat groups of the slat group unit are kept in a polymerized state without being separated in the longitudinal direction, so that light can be prevented from leaking from between the adjacent slat groups. . Further, when the adjacent slat groups are simultaneously raised and folded, even if the polymerization ladder member is uncovered, the load of each slat of one slat group is applied to the polymerization ladder member. The way of rampage is suppressed. As a result, it is possible to prevent the polymerization ladder member from loosening regularly and the polymerization ladder member from becoming loose.

  In the solar radiation shielding apparatus of the 2nd viewpoint of this invention, each slat of one slat group among the said adjacent slat groups is hold | maintained by each horizontal member for superposition | polymerization, and each of the other slat group among the said adjacent slat groups Since the slats are located directly below the respective horizontal members for polymerization, the sliding resistance between the horizontal members for polymerization and the slats during the expansion and contraction in the longitudinal direction of the slat group unit, and the polymerization part at the time of condensation It is possible to achieve both suppression of adhesion between slats. That is, when the slat group unit expands and contracts in the longitudinal direction, the sliding resistance generated between the adjacent slat group and the horizontal member for polymerization is suppressed by the arrangement of the slat group and the horizontal member for polymerization. . Specifically, although the load of each slat of one slat group is applied to the transverse member for polymerization, the load of each slat of the other slat group is not applied, so that one slat group and the other slat group are respectively It moves smoothly and can improve the followability of one slat group and the other slat group to the expansion and contraction operation. As a result, it is possible to maintain a state in which both ends in the longitudinal direction of adjacent slat groups during the expansion and contraction are aligned in the vertical direction, and to prevent the regularity of the slat groups from being disturbed. Further, when the adjacent slat groups are raised and folded, even if the pair of superposition vertical members are uncovered, the load of each slat of one slat group is applied to the superposition horizontal member. The way the vertical member is ramped is suppressed. As a result, it can be prevented that the pair of vertical members for polymerization regularly loosen, and the pair of vertical members for polymerization become loose.

  In the solar radiation shielding apparatus of the 3rd viewpoint of this invention, each slat of one slat group among the said adjacent slat groups is each clamped by a pair of horizontal member for superposition | polymerization, and the other slat group of the said adjacent slat groups Each of the slats is positioned directly below the pair of crossing transverse members, so that when the slat group unit expands or contracts in the longitudinal direction, the sliding resistance between the pair of superposing transverse members and the slats is reduced, and at the time of dew condensation. It is possible to achieve both suppression of adhesion between slats in the polymerization portion. That is, when the slat group unit expands and contracts in the longitudinal direction, the sliding resistance generated between the adjacent slat group and the pair of superposition lateral members is arranged between the slat group and the pair of superposition lateral members. It is suppressed by. Specifically, although the load of each slat of one slat group is applied to the lower polymerization member of the pair of polymerization transverse members, the load of each slat of the other slat group is not applied. One slat group and the other slat group move smoothly, respectively, and the followability of the one slat group and the other slat group to the expansion / contraction operation can be improved. As a result, it is possible to maintain a state in which both ends in the longitudinal direction of adjacent slat groups during the expansion and contraction are aligned in the vertical direction, and to prevent the regularity of the slat groups from being disturbed. In addition, when the adjacent slat groups are raised and folded, even if the pair of superposition vertical members are uncovered, the pair of superposition lateral members sandwich each slat of one slat group so that the pair of superposition members Since the load of each slat of one slat group is applied to the lower superposition horizontal member among the horizontal members, the rampage of the pair of superposition vertical members is suppressed. As a result, it can be prevented that the pair of vertical members for polymerization regularly loosen, and the pair of vertical members for polymerization become loose.

FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 showing a state (a) before and a state (b) after the two sets of slats of the horizontal blind according to the first embodiment of the present invention move relatively in the longitudinal direction. . It is the BB sectional view taken on the line of Fig.1 (a). It is a principal part perspective view which shows the part which the slats of those slat groups superposed | polymerized with the ladder cord for superposition | polymerization. It is a front view which shows the state (a) before the 2 sets of slat groups of the horizontal blind move relatively to a set frame part of an attachment frame, and a back state (b). A state (a) and a state (b) before the right slat group moves in the longitudinal direction by the right telescopic mechanism that holds the right slat group of the two sets of slat groups movably in the longitudinal direction. FIG. A state (a) and a state (b) before the left slat group moves in the longitudinal direction by the left telescopic mechanism that holds the left slat group of the two sets of slat groups movably in the longitudinal direction. FIG. It is CC sectional view taken on the line of Fig.5 (a). It is the DD sectional view taken on the line of Fig.6 (a). It is the EE sectional view taken on the line EE of FIG. 10 which shows the state (a) before 2 sets of slat groups of the horizontal blind of 2nd Embodiment of this invention move relatively to a longitudinal direction, and a back state (b). . It is the FF sectional view taken on the line of Fig.9 (a). It is a principal part perspective view which shows the part which the slats of those slat groups superposed | polymerized with the ladder cord for superposition | polymerization.

  Next, an embodiment for carrying out the present invention will be described with reference to the drawings.

<First Embodiment>
As shown in FIG. 4, the solar shading device 10 is a horizontal blind in this embodiment. The horizontal blind 10 includes an attachment frame 11 attached to a window frame 16 and a slat group unit 12 having two sets of slat groups 13 and 14 respectively suspended from the attachment frame 11. In this embodiment, the mounting frame 11 has a set of frame portions 11a, and the two sets of slat groups 13 and 14 are respectively suspended from the set of frame portions 11a. The set of frame portions 11a is attached to the lower surface of the upper frame portion 16a of the window frame 16 in a state of extending in the horizontal direction. Further, the set of frame portions 11a is formed in a channel shape having an open top surface (FIGS. 7 and 8). Furthermore, the horizontal blind 10 of this embodiment is configured such that the slat group unit 12 expands and contracts in the longitudinal direction by manual operation by pulley rotation.

  In one set of frame portions 11a, one up-down tilt drive shaft 17 having a rectangular column shape extending in the longitudinal direction of the frame portion 11a is provided, and four non-polymerization drum holders 18 are provided in the longitudinal direction of the frame portion 11a. It is provided so as to be movable in the longitudinal direction of the frame portion 11a with an interval in the direction (FIG. 4). In the four non-polymerization drum holders 18, four non-polymerization take-up drums 19 for winding the four non-polymerization lifting cords 21 and 22 so that they can be fed out respectively, and four sets of non-polymerization ladder cords Four non-polymerization tilting drums (not shown) are attached to move the front and rear of 23 and 24 up and down. The lifting / lowering tilt drive shaft 17 is inserted into the non-polymerization winding drum 19 and the non-polymerization tilting drum, and the non-polymerization winding drum 19 and the non-polymerization tilting drum are centered on the lifting / lowering tilt drive shaft 17. It is configured to be rotatable and movable in the longitudinal direction of the frame portion 11a. The non-polymerization winding drum 19 is always configured to be rotatable together with the lifting / lowering tilt drive shaft 17, and the non-polymerization tilting drum is configured to be rotatable together with the lifting / lowering tilt drive shaft 17 by a predetermined angle. Specifically, an inner peripheral portion of an arc plate-like ladder ring (not shown) is fitted into a pulley groove (not shown) formed in the non-polymerization tilt drum. When the up / down tilt drive shaft 17 rotates forward or backward by an angle of less than 90 degrees, the non-polymerization tilting drum rotates together with the up / down tilt drive shaft 17, and the inner periphery of the ladder ring and the non-polymerization tilt drum The rudder ring is also configured to rotate integrally with the non-polymerization tilting drum by the friction of the pulley groove. On the other hand, when the up-and-down tilt drive shaft 17 rotates 90 degrees or more in the forward or backward direction, the ladder ring hits a tilt stopper (not shown) and the rotation of the non-polymerization tilt drum stops, and the two sets of slat groups 13, Although each of the 14 slats 13a, 14a is not inclined more than 90 degrees, the non-polymerization winding drum 19 is configured to continue to rotate. The non-polymerization winding drum 19 is covered with a drum cover 18a which is a part of the non-polymerization drum holder 18 (FIGS. 5 and 6).

  On the other hand, the two sets of slat groups 13 and 14 are respectively suspended from the set of frame portions 11a and configured to be movable up and down (FIG. 4). Specifically, the two sets of slat groups 13 and 14 are respectively constituted by a plurality of slats 13a and 14a that extend in the horizontal direction and are provided at predetermined intervals in the vertical direction. It is comprised so that a part of longitudinal direction may superpose | polymerize. Two sets of bottom rails 27 and 28 are provided at the lower ends of the two sets of slat groups 13 and 14, respectively. Specifically, the two sets of bottom rails 27 and 28 extend in the horizontal direction so as to be positioned directly below the lowest slats 13a and 14a among the plurality of slats 13a and 14a of the two sets of slat groups 13 and 14. Provided. The two sets of bottom rails 27 and 28 constitute a bottom unit 26.

  The right slat group 13 of the two sets of slat groups 13 and 14 includes two sets of non-polymerization ladder cords 23 on the right side of the four sets of non-polymerization ladder cords 23 and 24 and one set of polymerization ladders. It is suspended by the cord 31 (FIGS. 1 to 4 and 7). The left slat group 14 of the two sets of slat groups 13 and 14 is suspended by the left two sets of non-polymerization ladder cords 24 among the four sets of non-polymerization ladder cords 23 and 24 (see FIG. 1 to 4 and 8). Here, when a portion where two slats 13a, 14a of two adjacent slat groups 13, 14 are alternately superposed is a superposition part 33, the right non-polymerization ladder cord 23 is the right slat group 13 The left non-polymerization ladder cord 24 suspends the left slat group 14 at the non-polymerization portion 33, and the polymerization ladder cord 31 suspends the right slat group 13 at the polymerization portion 33. Configured to hang.

  The non-polymerization ladder cord 23 on the right side is a pair of non-polymerization vertical cords 23a, 23a extending in the vertical direction along the front and rear edges of the plurality of slats 13a of the right slat group 13, and these non-polymerization ladder cords 23 It consists of a pair of non-polymerizing horizontal cords 23b, 23b that are fixed at both ends to the vertical cords 23a, 23a and hold the slats 13a from their upper and lower surfaces at predetermined positions (FIGS. 1, 3, 4 and FIG. 7). The left non-polymerization ladder cord 24 includes a pair of non-polymerization vertical strings 24a and 24a extending vertically along the front and rear edges of the plurality of slats 14a of the left slat group 14, and the non-polymerization ladder cords 24a and 24a. It consists of a pair of non-polymerizing horizontal cords 24b, 24b which are fixed at both ends to the vertical cords 24a, 24a and hold the slats 14a from their upper and lower surfaces in a predetermined position (see FIGS. 1, 3, 4 and 4). FIG. 8). Further, the lower ends of the pair of right non-polymerizing vertical strings 23a, 23a are respectively attached to the right bottom rail 27, and the upper ends of the four non-polymerizing tilting drums are the right two non-polymerizing tilting drums. They are attached to the front and rear, respectively (FIG. 4). Further, the lower ends of the left pair of non-polymerization vertical strings 24a, 24a are respectively attached to the left bottom rail 28, and the upper ends of the four non-polymerization tilt drums on the left are two non-polymerization tilt drums. Mounted on the front and back respectively.

  On the other hand, the slat group unit 12 is configured to expand and contract in the longitudinal direction by changing the polymerization length in a state where two adjacent slat groups 13 and 14 are polymerized (FIGS. 1 and 4). Here, in FIG. 1, the two sets of slat groups 13 and 14 are described so as to extend in a horizontal state, but actually, as shown in FIG. 4, the two sets of slat groups 13 and 14 stand up. It is designed to stretch in the state. Further, when the slat group unit 12 is expanded and contracted, the superposition ladder cord 31 is configured so as to suppress the sliding resistance acting between the two adjacent sets of slat groups 13 and 14 and the superposition horizontal cord 31b in the superposition portion 33. Is provided in the overlapping portion 33 (FIGS. 1 to 3). In this embodiment, the superposition ladder cord 31 is the above-described superposition ladder cord 31 that holds the right slat group 13 of the two sets of slat groups 13 and 14 adjacent in the superposition portion 33. In this embodiment, the pair of superposition ladder cords 31 is located on the right side of the superposition portion 33 and is disposed in front of and behind the plurality of slats 13a, 14a of the slat groups 13, 14. It consists of a string 31a, 31a and a plurality of overlapping horizontal strings 31b that are installed on these pair of overlapping vertical strings 31a, 31a at intervals in the longitudinal direction. A pair of vertical strings for superposition 31a, 31a are provided to extend in the vertical direction along the front and rear edges of the plurality of slats 13a, 14a of the slat groups 13, 14, respectively. Further, the plurality of horizontal straps 31b are configured to hold the plurality of slats 13a of the right slat group 13 out of the two sets of slat groups 13 and 14, respectively. That is, the superposing horizontal cord 31b is interposed between the adjacent or adjacent slats 13a, 14a of the two adjacent slat groups 13, 14, so that the superposing portion 33 and the slats 13a, 14a are superposed. The sliding resistance acting between the horizontal cord 31b is configured to be suppressed. Here, among the two sets of slat groups 13, 14, the plurality of slats 14a of the left slat group 14 are configured to be positioned directly below the horizontal strap 31b for polymerization. As a result, one set of the ladder cords 31 for polymerization has the function of suppressing the sliding resistance between the slats 13a, 14a and the function of maintaining the polymerization state of the two sets of slat groups 13, 14.

  The pair of superposition cords 31a, 31a of the pair of superposition ladder cords 31 are attached to the right bottom rail 27 and the upper end is attached to the right / left tilt drive shaft 17 on the right superposition tilt drum ( (FIG. 4). The superposition tilting drum is rotatable on a superposition drum holder (not shown) provided in the frame portion 11a and is immovably attached in the longitudinal direction of the frame portion 11a. However, the superposition tilt drum is configured to be movable in the longitudinal direction in the frame portion 11a by operating a telescopic operation member 43 described later. When the up / down tilt drive shaft 17 rotates forward or backward by an angle of less than 90 degrees, the superposition tilt drum rotates together with the up / down tilt drive shaft 17, and the superposition ladder cord 31 is also integrated with the superposition tilt drum. Is configured to rotate automatically. On the other hand, when the up / down tilt drive shaft 17 rotates 90 degrees or more forward or backward, the rotation of the superposition tilt drum stops and the slats of the two sets of slat groups 13 and 14 do not tilt more than 90 degrees. Configured. Note that the ends of the two sets of bottom rails 27 and 28 facing each other are arranged in two sets of slats so that the two sets of bottom rails 27 and 28 do not contact each other regardless of the expansion and contraction of the slat group unit 12 in the longitudinal direction. The slats 13a and 14a of the groups 13 and 14 are formed shorter.

  On the other hand, of the four non-polymerization lifting cords 21 and 22, the right two non-polymerization lifting cords 21 are responsible for the right slat group 13, and the left two non-polymerization lifting cords 22 are disposed on the left side. It is comprised so that the slat group 14 may be handled (FIG. 4). These lifting / lowering cords 21 and 22 for non-polymerization are provided in portions of the two sets of slat groups 13 and 14 that are not the overlapping portions 33, respectively. Also, one end of two right-side non-polymerization lifting / lowering cords 21 is attached to the right bottom rail 27, and the other end of these non-polymerization lifting / lowering cords 21 is free to play on each slat 13a of the right slat group 13. After being inserted, they are respectively attached to the two non-polymerization winding drums 19 on the right side. Further, one end of two left non-polymerization lifting / lowering cords 22 is attached to the left bottom rail 28, and the other end of these non-polymerization lifting / lowering cords 22 is free to play on each slat 14a of the left slat group 14. After being inserted, it is attached to the two non-polymerization winding drums 19 on the left side. Note that reference numeral 34 in FIG. 4 denotes an up / down tilt operation member attached to the front right portion of the pair of frame portions 11 a of the attachment frame 11. The lift / tilt operation member 34 is connected to the lift / tilt drive shaft 17 via a pulley and gears (not shown) in order to simultaneously lift and tilt the plurality of slats 13a and 14a of the two sets of slat groups 13 and 14. . Then, by operating the lifting / lowering tilt operating member 34, one lifting / lowering tilt drive shaft 17 rotates, and the non-polymerization lifting / lowering cords 21 and 22 are wound around the non-polymerization winding drum 19. The two sets of slat groups 13 and 14 can be moved up and down at the same time by being fed out from the winding drum 19 for polymerization, and the front and rear of the non-polymerization ladder cords 23 and 24 and the polymerization ladder cord 31 are moved up and down. By tilting a plurality of slats 13a, 14a of the group of slats 13, 14 forward or rearward, the tilt angles of these slats 13a, 14a can be changed simultaneously.

  On the other hand, one set of frame portions 11a of the mounting frame 11 is provided with expansion / contraction mechanisms 35 and 36 for changing the overlapping length in a state where two adjacent sets of slats 13 and 14 are overlapped (FIG. 4). ). As shown in detail in FIGS. 5 to 8, these telescopic mechanisms 35, 36 are composed of a telescopic drive shaft 37 that extends in the longitudinal direction in a set of frame portions 11 a, and of the telescopic drive shaft 37. Four male screw members 38 and 39 respectively fitted at positions facing the four non-polymerization drum holders 18 and a position of the telescopic drive shaft 37 facing two polymerization drum holders. Two male screw members (not shown), four female screw portions 41, 42 provided on the four non-polymerizing drum holders 18 and screwable with the four male screw members 38, 39, Two internal thread portions (not shown) provided on two superposition drum holders and screwed into the two external screw members, and an expansion / contraction member connected to the expansion / contraction drive shaft 37 via a gear and a pulley (not shown). And an operation member 43. By operating the telescopic operation member 43, the pulley rotates and the telescopic drive shaft 37 rotates. Of the six male screw members 38, 39, the right three male screw members 38 are right-hand screws, and the three left male screw members 39 are left-hand screws. Of the six female screw portions 41, 42, the right three female screw portions 41 are right-hand screws, and the left three female screw portions 42 are left-hand screws. By operating the expansion / contraction operation member 43, the expansion / contraction drive shaft 37 and the male screw members 38 and 39 rotate, and the female screw portions 41 and 42 move in the axial direction of the expansion / contraction drive shaft 37, so that two adjacent sets of The polymerization length is changed in a state where the slat groups 13 and 14 are polymerized.

  5 to 8 is a non-polymerization spacer that is interposed between the frame portion 11a and the non-polymerization drum holder 18 and is fixed to the inner surface of the frame portion 11a. 5 to 8 are a plurality of non-polymerization balls provided between the non-polymerization spacer 44 and the non-polymerization drum holder 18. The superposition | polymerization drum holder 18 can move smoothly in the longitudinal direction of the frame part 11a. Further, a polymerization spacer (not shown) and a polymerization ball (not shown) having functions similar to those of the non-polymerization spacer 44 and the non-polymerization ball 46 are also provided between the frame portion 11a and the polymerization drum holder 18. ) Is provided.

  The usage method and operation | movement of the horizontal blind 10 comprised in this way are demonstrated. In order to shield the light inserted from the window in the rectangular window frame 16, first, the lifting and tilting operation member 34 of the horizontal blind 10 is operated to simultaneously move the slats 13 a and 14 a of the two sets of slat groups 13 and 14. The lower surfaces of the two sets of bottom rails 27 and 28 are lowered to the upper surface of the lower frame portion (not shown) of the window frame 16. At this time, each slat 13a, 14a is in a standing state, and in this standing state (in FIG. 1A, each slat 13a, 14a is in a horizontal state, but in a state where these slats 13a, 14a are raised, 4 (a)), when the telescopic operation member 43 is operated, the pulley rotates and the telescopic drive shaft 37 rotates in the direction of the solid arrow in FIG. 5 (b), and the telescopic drive shaft 37 is fitted. The three right-hand male screw members 38 rotated in the same direction as the telescopic drive shaft 37 (the direction indicated by the solid line arrow in FIG. 5B), and the three right-hand female screw portions 41 in FIG. It moves in the direction of the dashed arrow, that is, in the right direction. At the same time, the three male screw members 39 on the left side to which the telescopic drive shaft 37 is fitted rotate in the same direction as the telescopic drive shaft 37 (in the direction of the solid line arrow in FIG. 6B), and the three female screws on the left side The part 42 moves in the direction of the broken line arrow in FIG. Thus, the non-polymerization winding drum 19 and the non-polymerization tilting drum attached to the two right non-polymerization drum holders 18, and the polymerization tilting drum attached to the right one polymerization drum holder And the right slat group 13 and the right bottom rail 27 move in the right direction and approach the inner surface of the right frame portion (not shown) of the window frame 16, and at the same time, Since the non-polymerization take-up drum 19 and the non-polymerization tilting drum attached to the non-polymerization drum holder 18 move to the left, the left slat group 14 and the left bottom rail 28 move to the left and the window It approaches the inner surface of the left frame portion (not shown) of the frame 16. As a result, the superposition length of the two adjacent slat groups 13 and 14 is reduced, and the slat group unit 12 extends in the longitudinal direction (in FIG. 1B, each slat 13a and 14a is in a horizontal state). FIG. 4B shows a state in which these slats 13a and 14a are erected.

  At this time, each slat 13a of the right slat group 13 out of two sets of slat groups 13 and 14 adjacent in the overlapping portion 33 is held by one set of the ladder cords 31 for polymerization, that is, adjacent in the overlapping portion 33. Since the horizontal strap 31b for polymerization is interposed between the slats 13a and 14a that are in contact with or close to each other among the two sets of slat groups 13 and 14, the horizontal strap for polymerization when the slat group unit 12 expands and contracts in the longitudinal direction. The suppression of the sliding resistance between 31b and the slats 13a, 14a and the suppression of the close contact between the slats 13a, 14a at the overlapping portion 33 during condensation can be achieved. That is, when the slat group unit 12 expands and contracts in the longitudinal direction, the sliding resistance generated between the two adjacent slat groups 13, 14 and the horizontal strap 31b for polymerization is the slat group 13, 14 and the above. It is suppressed by the arrangement with the horizontal strap 31b for polymerization. Specifically, although the load of each slat 13a of the right slat group 13 is applied to the horizontal strap 31b for polymerization, the load of each slat 14a of the left slat group 14 is not applied. The left slat group 14 moves smoothly, and the followability to the expansion and contraction operations of the right slat group 13 and the left slat group 14 can be improved. As a result, the longitudinal ends of the two sets of slat groups 13, 14 during and after the expansion and contraction can be maintained in the vertical direction, and the regularity of the slat groups 13, 14 is prevented from being disturbed. it can. Further, when the two sets of slat groups 13 and 14 are simultaneously raised and folded, even if the pair of superposed vertical strings 31a and 31a are exposed, each of the slats 13a of the right slat group 13 is connected to the superposed horizontal string 31b. Since the load is applied, the rampage of the pair of superposition strings 31a and 31a is suppressed. Accordingly, it is possible to prevent the pair of vertical strings 31a, 31a from being loosened regularly and the loose state of the pair of vertical strings 31a, 31a to be uneven.

  Further, since the slats 13a and 14a of the two sets of slat groups 13 and 14 are in an upright state and the slat group unit 12 extends in the longitudinal direction, the total amount of gaps in which light leakage occurs is changed. The group unit 12 covers almost the entire rectangular window frame 16. Accordingly, it is possible to prevent light leakage from the gap between adjacent slat groups 13 and 14 of the slat group unit 12 or the outer surface of the slat group unit 12.

<Second Embodiment>
9 to 11 show a second embodiment of the present invention. 9 to 11, the same reference numerals as those in FIGS. 1 to 3 denote the same components. In this embodiment, a pair of superposition ladder cords 113 includes a pair of superposition string 113a, 113a disposed before and after two sets of slat groups 13, 14 adjacent to each other at the superposition portion 33, and these It has a pair of horizontal straps 113b and 113b for superimposing one pair at a distance in the longitudinal direction on the vertical cords 113a and 113a for polymerization. A pair of vertical string 113a, 113a for superposition | polymerization is extended and extended in the vertical direction along the front edge and rear edge of each slat 13a, 14a of two adjacent slat groups 13,14. One end of the pair of horizontal straps 113b and 113b is fixed to the indoor vertical string 113a of the pair of vertical straps 113a and 113a, and the other end of the pair of horizontal straps 113b and 113b is Of the pair of vertical strings 113a, 113a, the vertical string 113a for polymerization on the window side is fixed. In this embodiment, the pair of horizontal straps 113b and 113b for holding hold the slats 13a of the right slat group 13 from the upper and lower surfaces of the two adjacent slat groups 13 and 14. Configured as follows. Further, each slat 14a of the left slat group 14 is positioned directly below the lower superposition horizontal cord 113b of the pair of superposition horizontal cords 113b, 113b sandwiching each slat 13a of the right slat group 13. Configured. In FIG. 9, two sets of slat groups 13 and 14 are described so as to extend in a horizontal state, but actually, two sets of slat groups 13 and 14 extend in a standing state. Yes.
The configuration other than the above is the same as that of the first embodiment.

  A usage method and operation of the horizontal blind 100 configured as described above will be described. In the case of shielding the light inserted from the window in the rectangular window frame 16, as in the first embodiment, first, two sets of slat groups 13, 14 are operated by operating the lifting / lowering tilt operating member of the horizontal blind. The slats 13a and 14a are simultaneously raised, and the lower surfaces of the two sets of bottom rails are lowered to the upper surface of the lower frame portion of the window frame 16. At this time, in a state where the slats 13a and 14a are erected (in FIG. 9A, each slat 13a and 14a is in a horizontal state, but the slats 13a and 14a are erected), the telescopic operation member is When operated, a non-polymerization winding drum and a non-polymerization tilting drum attached to the two right non-polymerization drum holders, and a polymerization tilting drum attached to the one right polymerization drum holder Since it moves in the right direction, the right slat group 13 and the right bottom rail move in the right direction and approach the inner surface of the right frame part of the window frame, and are simultaneously attached to the two non-polymerization drum holders on the left side. Since the non-polymerization winding drum and the non-polymerization tilting drum move in the left direction, the left slat group 14 and the left bottom rail move in the left direction and approach the inner surface of the left frame portion of the window frame. As a result, the overlapping length of the two adjacent slat groups 13 and 14 is reduced, and the slat group unit 12 extends in the longitudinal direction (in FIG. 9B, each slat 13a and 14a is in a horizontal state). These slats 13a and 14a are standing up).

  At this time, each slat 13a of the right slat group 13 is sandwiched between a pair of horizontal straps 113b and 113b of the polymerization ladder cord 113, and each slat 14a of the left slat group 14 is The pair of horizontal straps for superposition when the slat group unit 12 is expanded and contracted in the longitudinal direction because it is located directly below the lower superposition horizontal cord 113b among the pair of horizontal straps 113b and 113b for sandwiching the slat 13a. The suppression of the sliding resistance between 113b and 113b and the slats 13a and 14a and the suppression of the close contact between the slats 13a and 14a at the overlapping portion 33 during condensation can be achieved. That is, when the slat group unit 12 expands and contracts in the longitudinal direction, the sliding resistance generated between the two adjacent sets of slat groups 13 and 14 and the pair of superposition horizontal cords 113b and 113b causes the slat group 13 , 14 and the pair of horizontal straps 113b, 113b for polymerization. Specifically, although the load of each slat 13a of the right slat group 13 is applied to the lower polymerization lace 113b of the pair of polymerization laces 113b and 113b, each slat of the left slat group 14 is applied. Since the load 14a is not applied, the slat group 13 on the right side and the slat group 14 on the left side move smoothly, and the followability of the right slat group 13 and the left slat group 14 to the expansion / contraction operation can be improved. As a result, it is possible to maintain a state in which both ends in the longitudinal direction of the two adjacent sets of slat groups 13 and 14 are aligned in the vertical direction during the expansion and contraction, and the regularity of the two sets of adjacent slat groups 13 and 14. Can be prevented from being disturbed. Further, when two pairs of adjacent slat groups 13 and 14 are simultaneously raised and folded up, even if the pair of superposed vertical strings 113a and 113a are exposed, the pair of superposed horizontal strings 113b and 113b are on the right slat group. By sandwiching the 13 slats 13a, the load of the slats 13a of the right slat group 13 is applied to the lower superposition horizontal cord 113b of the pair of superposition horizontal cords 113b and 113b. The ramping of the vertical strings 113a and 113a for polymerization is suppressed. As a result, it is possible to prevent the pair of vertical strings 113a and 113a from being loosened regularly and the pair of vertical strings 113a and 113a to be loose.

  Furthermore, since the slats 13a and 14a of the two sets of slat groups 13 and 14 are in an upright state and the slat group unit 12 extends in the longitudinal direction, light leakage occurs as in the first embodiment. The total sum of the gaps changes, and the slat group unit 12 covers almost all of the rectangular window frame 16. Accordingly, it is possible to prevent light leakage from the gap between adjacent slat groups 13 and 14 of the slat group unit 12 or the outer surface of the slat group unit 12.

  In the first and second embodiments, one set of frame portions of the attachment frame is attached to the upper frame portion of the window frame, but one set of frame portions may be attached to the ceiling or wall, or You may attach two sets of frame parts of an attachment frame to the upper frame part of a window frame, a ceiling, or a wall. In the first and second embodiments, the slat group unit has two slat groups. However, the slat group unit may have three or more slat groups. Alternatively, the mounting frame may have two or more sets of frame portions, and the slat group unit may have two or more sets of slat groups.

  In the first and second embodiments, a plurality of slats in the right slat group are suspended by two sets of non-polymerization ladder cords and one set of polymerization ladder cords. It may be suspended by a polymerization ladder cord and at least one set of polymerization ladder cords. Moreover, in the said 1st and 2nd embodiment, although the non-polymerization ladder cord which has the non-polymerization vertical string and the non-polymerization horizontal string was mentioned as a non-polymerization ladder member, as a non-polymerization ladder member Alternatively, a non-polymerization ladder tape having a non-polymerization vertical tape and a non-polymerization horizontal tape may be used. Furthermore, in the said 1st and 2nd embodiment, although the ladder cord for superposition | polymerization which has the vertical string for superposition | polymerization and the horizontal string for superposition | polymerization was mentioned as a ladder member for superposition | polymerization, the vertical tape for superposition | polymerization is used as a ladder member for superposition | polymerization. Also, a polymerization ladder tape having a horizontal tape for polymerization may be used.

10,100 Horizontal blind (sunlight shielding device)
DESCRIPTION OF SYMBOLS 11,101 Mounting frame 12 Slat group unit 13,14 Slat group 13a, 14a Slat 16 Window frame 31,113 Ladder cord for superposition | polymerization (ladder member for superposition | polymerization)
31a, 113a Vertical string for polymerization (vertical member for polymerization)
31b, 113b Polymerization horizontal string (polymerization horizontal member)
33 Superposition part

Claims (3)

A solar radiation shielding device comprising: a mounting frame attached to a ceiling, a wall, or a window frame; and a slat group unit having at least two sets of adjacent slat groups that can be lifted and lowered respectively from the mounting frame;
Configured such that a part of the longitudinal direction of the adjacent slat groups is polymerized;
The slat group unit is configured to expand and contract in the longitudinal direction by changing the polymerization length in a state where the adjacent slat groups are polymerized,
A solar radiation shielding device, wherein a superposition ladder member is provided in the superposition part so as to suppress a sliding resistance acting on the adjacent slat group in the superposition part when the slat group unit expands and contracts in the longitudinal direction. . The ladder member for polymerization is a pair of vertical members for polymerization disposed before and after the adjacent slat groups in the overlapping portion, and a plurality of the vertical members for polymerization are installed at intervals in the longitudinal direction. A transverse member for polymerization,
Each slat of one slat group among the adjacent slat groups is respectively held by each lateral member for polymerization,
The solar radiation shielding apparatus according to claim 1, wherein each slat of the other slat group among the adjacent slat groups is configured to be located immediately below each lateral member for polymerization. The polymerization ladder member is installed in a pair of vertical members for polymerization disposed in front and rear of the adjacent slat groups in the overlapping portion, and a pair of the vertical members for polymerization are spaced apart in the longitudinal direction. A plurality of pairs of transverse members for polymerization,
Each slat of one slat group among the adjacent slat groups is sandwiched by a pair of horizontal members for polymerization,
The solar radiation shielding apparatus according to claim 1, wherein each slat of the other slat group among the adjacent slat groups is configured to be located immediately below the pair of superposing lateral members.

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