Louver holding member and sunlight shielding device

Abstract

To provide a louver holding member capable of easily applying initial winding to a coil spring, and a sunlight shielding device.SOLUTION: A louver holding member 10 is a louver holding member 10 for holding a driven louver 60 in a sunlight shielding device 100 including a main driving louver 70 which tilts by force transmitted from a transmission tool 33, and the driven louver 60 which tilts by force transmitted from the main driving louver 70, each extending in a predetermined direction. The louver device includes the shaft 12 that holds the driven louver 60 at one end, the case 11 that houses the shaft 12, the coil spring 14 of which one end is held by the shaft 12, and the cover 13 that holds the other end of the shaft 12 and the other end of the coil spring 14 and is attached to the case 11, and the coil spring 14 is obtained by being held by the shaft 12 and the cover 13 with an elastic force applied thereto.SELECTED DRAWING: Figure 14

Description

[Technical Field]

[0001] The present invention relates to a louver holding member and a solar shading device, and for example, to a louver holding member that holds vertical louvers in a solar shading device having vertical louvers, and the louver holding member is suitable for application to a solar shading device. [Background technology]

[0002] Conventionally, with regard to vertical blinds, a vertical blind has been proposed in which, even if the state of the louvers suspended from the second carrier changes, the louvers suspended from the second carrier can automatically return to a state in which they almost completely close the gaps between the louvers suspended from the first carrier (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-140952 Summary of the Invention [Problem to be solved by the invention]

[0004] In the vertical blind of Patent Document 1, the louvers 42 suspended from the second carrier 16C are constantly biased in a predetermined rotational direction around the vertical axis by the coil spring 35, which is a biasing means. In the assembly process of the second carrier 16C, it is necessary to apply an initial winding to the coil spring 35 so that a constant biasing force is applied, and it is necessary to use tools and jigs to hold one end 35A of the coil spring 35 in the initial winding state and engage it with the vertical groove 39. Therefore, assembling the carrier that holds the louvers requires a worker who is well-versed in assembly methods to use tools and jigs, which makes it difficult to reduce manufacturing costs.

[0005] Therefore, the present invention has been made in consideration of the above-mentioned problems, and aims to provide a louver holding member and a solar shading device that allow the initial winding of a coil spring to be easily performed. [Means for solving the problem]

[0006] A louver holding member in a representative embodiment of the present invention is a louver holding member for holding the driven louvers in a solar shading device that includes driven louvers that tilt due to force transmitted from a transmission device, each extending in a predetermined direction, and driven louvers that tilt due to force transmitted from the driven louvers, and the louver holding member comprises a shaft that holds the driven louvers at one end, a case that houses the shaft, a coil spring whose one end is held by the shaft, and a cover that holds the other end of the shaft and the other end of the coil spring and is attached to the case, and the coil spring is held by the shaft and the cover with elastic force applied to it. [Effects of the Invention]

[0007] According to the present invention, it is possible to realize a louver holding member and a solar shading device that allow the initial winding of a coil spring to be easily performed. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a front view showing the overall configuration of a solar shading device according to an embodiment of the present invention. [Figure 2] 1 is a schematic plan view for explaining the overall configuration of a solar shading device according to an embodiment of the present invention. [Figure 3] 1 is a side view showing the overall configuration of a solar shading device according to an embodiment of the present invention. [Figure 4] 1 is a perspective view showing the configuration of a louver holding member, a second louver holding member, and a transmitting device according to an embodiment of the present invention. [Figure 5] 1 is a perspective view showing a configuration of a louver holding member according to an embodiment of the present invention; [Figure 6] FIG. 2 is a perspective view showing the configuration of a shaft, a cover, and a coil spring of the louver holding member. [Figure 7] FIG. 7 is a perspective view of FIG. 6, viewed from a different angle. [Figure 8] FIG. 4 is a perspective view showing the configuration of a shaft of a louver holding member. [Figure 9] FIG. 4 is a perspective view showing a configuration of a second louver holding member according to the embodiment of the present invention. [Figure 10] FIG. 10 is a perspective view showing the configuration of a second louver holding member. [Figure 11] FIG. 10 is a perspective view showing a state in which a coil spring is inserted into a shaft. [Figure 12] FIG. 10 is a perspective view showing a state in which the louver holding area of ​​the shaft is housed in the case. [Figure 13] 10 is a plan view showing a state in which the louver holding area of ​​the shaft through which the coil spring is inserted is housed in the case. FIG. [Figure 14] FIG. 14 is a perspective view showing a state in which the cover is fitted onto the shaft in the state shown in FIGS. 12 and 13. [Figure 15] 15 is a perspective view showing a state in which the cover is rotated from the state shown in FIG. 14. FIG. [Figure 16] FIG. 10 is an image diagram showing the state in which one end of the coil spring is attached to the cover and the initial winding is applied. [Figure 17] 5A and 5B are schematic diagrams showing tilting operations of a driven louver and a driven louver. [Figure 18] FIG. 10 is a front view showing the overall configuration of a solar shading device according to a modified example of the present invention. [Figure 19] FIG. 10 is a side view showing the overall configuration of a solar shading device according to a modified example of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] 1. Overview of the embodiment First, an outline of a typical embodiment of the present invention will be described. In the following description, as an example, reference numerals in the drawings corresponding to components of the present invention will be written in parentheses.

[0010] [1] A louver holding member (10) according to a representative embodiment of the present invention is a louver holding member (10) for holding the driven louvers (60) in a solar shading device (100) that includes driven louvers (70) that tilt by force transmitted from a transmission device (33) and that each extend in a predetermined direction, and driven louvers (60) that tilt by force transmitted from the driven louvers (70), and the louver holding member (10) includes a shaft (12) that holds the driven louvers (60) at one end, a case (11) that houses the shaft (12), a coil spring (14) whose one end is held by the shaft (12), and a cover (13) that holds the other end of the shaft (12) and the other end of the coil spring (14) and is attached to the case (11), and the coil spring (14) is held by the shaft (12) and the cover (13) with elastic force applied to the coil spring (14).

[0011] [2] In the louver holding member (10) described in [1] above, the cover (13) has a convex area (132) that protrudes toward the driven louver (60), and the convex area (132) may have a hole area (133) through which the other end of the coil spring (14) is inserted.

[0012] [3] In the louver holding member (10) described in [1] to [2] above, one end of the coil spring (14) may have a first protrusion (141) which is a region that protrudes radially inward from the main body portion (143).

[0013] [4] In the louver holding member (10) described in [1] to [3] above, the other end of the coil spring (14) may have a first convex region (142R) that is a region that protrudes radially outward from the main body portion (143), and a second convex region (142V) that is a region that protrudes circumferentially from the first convex region (142R).

[0014] [5] In the louver holding member (10) described in [1] to [4] above, the shaft (12) may be provided with an area (122) for inserting the coil spring (14), the area having an axial portion (122S) that is an area for inserting the main body portion (143) of the coil spring (14), a recess (122H) having a volume for inserting the first convex portion (141), and a groove portion (122D) whose radial groove depth decreases as it moves vertically from the cover (13) side toward the driven louver (60) side.

[0015] [6] A solar shading device (100) according to a representative embodiment of the present invention comprises a driven louver (70), a driven louver (60), a louver holding member (10) as described in [1] to [5] above that holds the driven louver (60), a second louver holding member (20) that holds the driven louver (70), an operating device (40) that transmits force to the transmission device (33) to open / close and tilt the driven louvers (70) and the driven louvers (60), and a head rail (31) that holds the second louver holding member (20), the louver holding member (10), and the transmission device (33).

[0016] 2. Embodiments of the present invention Specific examples of embodiments of the present invention will be described below with reference to the drawings. In the following description, components common to each embodiment will be given the same reference numerals, and repeated description will be omitted. It should be noted that the drawings are schematic, and the dimensional relationships and ratios of each element may differ from the actual situation. The drawings may also include portions with different dimensional relationships and ratios.

[0017] FIG. 1 is a front view showing the overall configuration of a solar shading device according to an embodiment of the present invention. FIG. 2 is a schematic plan view for explaining the overall configuration of the solar shading device according to the embodiment of the present invention. FIG. 3 is a side view showing the overall configuration of the solar shading device according to the embodiment of the present invention.

[0018] The solar shading device in which the louver holding member of the present invention can be used is a known solar shading device, and is not limited to a specific solar shading device, and can be applied to vertical blinds (vertical blinds), aluminum blinds, shutters, etc. For example, as shown in Fig. 1, the louver holding member 10 of the present invention is applied to a solar shading device 100 that uses driven louvers 60 and driven louvers 70 that extend vertically. In other words, the solar shading device 100 is a vertical blind.

[0019] As shown in FIG. 1, the solar shading device 100 is a cover that is fixed to, for example, a window frame or a wall around a window, and that allows the outside to be seen from inside the room, prevents the inside of the room from being seen from outside, and allows light and wind to enter the room, while preventing light and wind from entering the room.

[0020] In this embodiment, for ease of explanation, the left-right direction in which the head rail 31 of the solar shading device 100 extends is referred to as the longitudinal direction (arrow LR). Furthermore, the longitudinal direction (arrow LR) corresponds to the left side (arrow L) and the right side (arrow R) in FIG. 1 as viewed from the indoor side. Furthermore, the direction in which the driven louvers 60 and the driven louvers 70 hang down relative to the head rail 31 is referred to as the up-down direction (arrow UD).

[0021] 1, the side of the head rail 31 is the upper side (arrow U), and the side away from the head rail 31 is the lower side (arrow D). Furthermore, as shown in FIGS. 2 and 3, the direction intersecting the longitudinal direction (arrow LR) and the vertical direction (arrow UD) is the short side (front-to-back direction) indicated by arrow FB. In the short side direction (arrow FB), for example, the indoor side is the front side (arrow F), and the outdoor side is the rear side (arrow B).

[0022] A solar shading device 100 according to this embodiment includes driven louvers 70 and driven louvers 60 that block solar radiation, a louver holding member 10 that holds the driven louvers 60, a second louver holding member 20 that holds the driven louvers 70, an operating device 40 that transmits force to a transmitting device 33 to tilt the driven louvers 70 and open / close the driven louvers 70 and driven louvers 60, a transmitting device 33 that transmits the force generated by the operation of the operating device 40 to the driven louvers 70, a head rail 31 that holds the second louver holding member 20, the louver holding member 10, and the transmitting device 33, and a bracket 32 ​​for attaching the head rail 31 to an attachment target. The configuration of the solar shading device 100 will be briefly described below.

[0023] The head rail 31 is formed in the shape of a long box having an internal storage space, and has inside thereof a louver holding member 10, a second louver holding member 20, a transmission device 33, and a bracket. The head rail 31 is attached to an attachment target such as a ceiling or wall of a building via a bracket. In this embodiment, the head rail 31 is attached to a ceiling in the upward direction (arrow U) via a bracket. However, this is not limited to this, and the head rail 31 may also be attached to a wall in the rearward direction (arrow B) via a bracket of another shape (not shown). The bracket is a support for connecting the head rail 31 to an object to be attached.

[0024] Louver holding members 10 and second louver holding members 20 are attached alternately in the longitudinal direction (arrow LR) to head rail 31. In other words, louver holding members 10 and second louver holding members 20 are arranged alternately in head rail 31 in the longitudinal direction (arrow LR). A transmission tool 33 is attached to the center of the head rail 31 in the longitudinal direction (arrow LR) and on the front side (arrow F) in the lateral direction (arrow FB). Furthermore, operation tools 40 and 50 are attached to the right side (arrow R) of the head rail 31 in the longitudinal direction (arrow LR). However, the present invention is not limited to this, and the operating devices 40, 50 may be attached to the left end (arrow L) of the head rail 31 in the longitudinal direction (arrow LR).

[0025] The transmitter 33 extends in the longitudinal direction (arrow LR) and has a generally cylindrical shape. The transmitter 33 is fitted into the second louver holding member 20 and is inserted into the louver holding member 10, as will be described later.

[0026] The second louver holding member 20 is fitted with the transmission device 33 and holds the driven louver 70 on the underside (arrow D). The second louver holding member 20 tilts the driven louver 70 in accordance with the operation of the operating device 40 transmitted from the transmission device 33. The detailed configuration of the second louver holding member 20 will be described later.

[0027] Louver holding member 10 has transmitter 33 inserted therethrough and holds driven louver 60 on the underside (arrow D). Louver holding member 10 tilts driven louver 60 in accordance with the tilting movement of second louver holding member 20. The detailed configuration of louver holding member 10 will be described later. The louver holding members 10 are connected so that they can move apart or approach each other with a predetermined maximum distance in the closing operation of the opening and closing operation. Similarly to louver holding member 10, second louver holding member 20 is also connected so as to be able to move away from or approach each other with a predetermined maximum distance in the closing operation of the opening and closing operation. That is, louver holding member 10 and second louver holding member 20 are held by head rail 31 so as to be movable in the longitudinal direction (arrow LR).

[0028] The driven louvers 70 extend in the vertical direction (arrow UD) and are made of an opaque material such as natural fibers (linen, cotton, wool, etc.), synthetic fibers (polyester, acrylic, etc.), regenerated fibers (rayon, etc.), etc. The driven louvers 70 are held by the second louver holding members 20.

[0029] The driven louvers 60 extend in the up and down direction (arrow UD) and are made of a translucent material such as synthetic fiber (polyester, acrylic, etc.) or recycled fiber (rayon, etc.). The driven louvers 60 are held by the louver holding member 10.

[0030] The driven louvers 70 and the driven louvers 60 are connected by, for example, a cord. The driven louvers 60 sandwiched between the driven louvers 70 are arranged so that the gap between the driven louvers 70 is filled by the coil springs 14 described below. Additionally, adjacent louver holding members 10 and second louver holding members 20 are connected to each other by spacer links (not shown) or the like. Therefore, during the closing operation of the opening / closing operation, the maximum distance that all louver holding members, including louver holding members 10 and second louver holding members 20, can be separated from each other is limited by spacer links (not shown). Therefore, the driven louvers 60 sandwiched between the driven louvers 70 operate to fill the gaps between the driven louvers 70 due to the biasing force of the coil springs 14 (described below). Therefore, when the driven louvers 70 rotate (tilt) due to the rotational movement (tilting movement) of the shafts 22 of the second louver holding members 20 (described below), the driven louvers 60 can rotate (tilt) in accordance with the rotational movement (tilting movement) transmitted from the driven louvers 70.

[0031] The operating device 40 is attached to the right side (arrow R) of the head rail 31 in the longitudinal direction (arrow LR), and has a fastener 41 attached to the head rail 31 and an operating grip 42 attached so as to hang down from the fastener 41.

[0032] In response to the user's pulling on the operating grip 42, the fastener 41 attached to the head rail 31 can move in the longitudinal direction (arrow LR). As a result, the driven louvers 70 held by the second louver holding member 20 and the driven louvers 60 held by the louver holding member 10 move to the right (arrow R) and to the left (arrow L) as the fastener 41 moves.

[0033] Therefore, the user can hold the operating grip 42 of the operating device 40 in his / her hand and pull it left or right to move the driven louver 70 held by the second louver holding member 20 and the driven louver 60 held by the louver holding member 10 left or right.

[0034] Furthermore, when the user holds the operating grip 42 of the operating tool 40 and rotates the operating tool 40 around the vertical direction (arrow UD) as the rotation axis, the driven louvers 70 held by the second louver holding member 20 and the driven louvers 60 held by the louver holding member 10 can be tilted. Details of the tilting operation will be described later.

[0035] Next, the configurations of louver holding member 10 and second louver holding member 20 will be briefly described.

[0036] FIG. 4 is a perspective view showing the configuration of a louver holding member, a second louver holding member, and a transmitting device according to the embodiment of the present invention.

[0037] 4, second louver holding members 20 are fitted to transmission devices 33 extending along the longitudinal direction (arrow LR). Louver holding members 10 are inserted between the second louver holding members 20 fitted to transmission devices 33.

[0038] As shown in Fig. 4, the transmitting tool 33 has a substantially cylindrical shape. When the longitudinal direction (arrow LR) of the transmitting tool 33 is set as the rotation axis, the cross-sectional shape of the transmitting tool 33 as viewed from a direction perpendicular to the longitudinal direction (arrow LR) has recessed regions 33H that are recessed in the direction from the outer circumferential surface toward the rotation axis at 120-degree intervals in the direction of the rotation axis.

[0039] The transmission device 33 has a shape corresponding to the shape of the transmission device fitting area 231 described later of the second louver holding member 20, and the movement of the transmission device 33 in the direction of the rotation axis transmitted from the operating device 40 indicated by arrow A1 in Figure 4 is transmitted to the second louver holding member 20 through the transmission device fitting area 231.

[0040] On the other hand, the transmitting device 33 does not come into contact with a hole 111, which will be described later, of the louver holding member 10. The hole 111 has an inner diameter larger than the outer diameter of the transmitting device 33, and the transmitting device 33 is simply inserted through the hole 111. Therefore, the movement of the transmitting device 33 in the rotation axis direction transmitted from the operating device 40 is not directly transmitted to the louver holding member 10.

[0041] In Figure 4, there are three second louver holding members 20 fitted into the transmission device 33 and two louver holding members 10 inserted into the transmission device 33, but the number of louver holding members 10 and second louver holding members 20 is not limited to this as long as the louver holding members 10 and second louver holding members 20 are arranged alternately in the longitudinal direction (arrow LR).

[0042] The movement of the transmission device 33 in the direction of the rotation axis transmitted from the operating device 40 is transmitted to the second louver holding member 20 through the transmission device fitting region 231. At this time, when the driving louver 70 rotates as shown by the arrow A2 in Fig. 4 due to the rotational movement of the shaft 22 of the second louver holding member 20, the driven louver 60 rotates as shown by the arrow A3 in Fig. 4 in response to the rotational movement of the driving louver 70. Then, the shaft 12 of the louver holding member 10 rotates in response to the rotational movement of the driven louver 60.

[0043] To summarize the above, when the shaft 22 of the second louver holding member 20 rotates clockwise with the vertical direction (arrow UD) as the rotation axis, a rotational force is transmitted to the shaft 12 of the louver holding member 10 through the driving louver 70 and the driven louver 60, causing it to rotate clockwise. Similarly, when the shaft 22 of the second louver holding member 20 rotates counterclockwise with the vertical direction (arrow UD) as the rotation axis, the shaft 12 of the louver holding member 10 rotates counterclockwise due to the rotational force (spring force) of the coil spring 14 described later. These rotational movements will be described in detail later.

[0044] Next, the configuration of the louver holding member 10 will be described.

[0045] FIG. 5 is a perspective view showing the configuration of a louver holding member according to an embodiment of the present invention. FIG. 6 is a perspective view showing the configuration of the shaft, cover, and coil spring of the louver holding member. FIG. 7 is a perspective view of FIG. 6, shown from a different angle. FIG. 8 is a perspective view showing the configuration of the shaft of the louver holding member.

[0046] The louver holding member 10 includes a case 11, a shaft 12, a cover 13, and a coil spring 14.

[0047] 5, the case 11 is a housing that houses the shaft 12, the cover 13, and the coil spring 14. The case 11 has a hole portion 111, a housing portion 112, a fitting portion 113, a wheel 114, and a bottom portion 115.

[0048] The hole 111 has an inner diameter larger than the outer diameter of the transmitting tool 33, allowing the transmitting tool 33 to pass through. The hole 111 does not come into contact with the transmitting tool 33, and therefore does not transmit the movement of the transmitting tool 33 in the rotation axis direction transmitted from the operating tool 40 to the louver holding member 10. The size of the inner diameter of the hole 111 only needs to be larger than the outer diameter of the transmitting tool 33, and can be set arbitrarily.

[0049] The housing part 112 is a part that houses the shaft 12, the cover 13, and the coil spring 14. In addition, the housing part 112 has wheels 114 attached thereto, and the housing part 112 is attached to the head rail 31 via the wheels 114.

[0050] The fitting portion 113 is an opening provided on the upper side (arrow U) of the housing portion 112, and is an area into which the cover 13 is fitted.

[0051] Wheel 114 is attached to housing 112 and can rotate around the short-side direction (arrow FB) as the rotation axis. That is, by having wheel 114, case 11 can move freely in the long-side direction (arrow LR).

[0052] Bottom portion 115 is located on the lower side (arrow D) in the up-down direction (arrow UD) of case 11, and is an area formed integrally with housing portion 112. Bottom portion 115 has hole portion 115H having an inner diameter larger than the outer diameter of louver holding region 121 of shaft 12, which will be described later, and smaller than the outer diameter of base portion 123.

[0053] 6 to 8, shaft 12 has a generally cylindrical shape extending in the up-down direction (arrow UD), and holds driven louver 60 at one end. Shaft 12 has louver holding region 121, coil spring insertion region 122, and base portion 123.

[0054] Louver holding area 121 is provided at one end of shaft 12 in the downward direction (arrow D), and has recessed area 121H recessed in the upward direction (arrow U). By inserting and clamping driven louvers 60 into recessed area 121H, louver holding area 121 can hold driven louvers 60. Furthermore, bottom portion 121B is provided downward (arrow D) in louver holding area 121. Bottom portion 121B is a flat area when viewed from below (arrow D) among areas that protrude downward (arrow D) in recessed area 121H.

[0055] The coil spring insertion region 122 is a region where the coil spring 14 is inserted, and has a shaft portion 122S, a recessed portion 122H, and a groove portion 122D.

[0056] The shaft portion 122S is a region through which a main body portion 143 (described later) of the coil spring 14 is inserted. In addition, the upper end (arrow U) of the shaft portion 122S is also a region that fits into a shaft fitting region 131 (described later) of the cover 13. The recess 122H is a region having a volume large enough to insert a first protrusion 141 (described later) of the coil spring 14 therethrough. Groove portion 122D is a region in which the depth of the groove decreases in the direction away from the rotation axis (radially outward) when the rotation axis is in the up-down direction (arrow UD) as it moves from the cover 13 side (upper side (arrow U)) in the vertical direction (up-down direction (arrow UD)) to the driven louver 60 side (lower side (arrow D)).

[0057] When the coil spring 14 is inserted into the coil spring insertion region 122, the coil spring 14 can be moved in the up and down direction (arrow UD). For example, the first protrusion 141 of the coil spring 14 can be inserted into the recess 122H and then moved in the vertical direction (up and down direction (arrow UD)).

[0058] Base portion 123 is a region that connects louver holding region 121 and coil spring insertion region 122, and is located inside case 11 when louver holding member 10 is assembled.

[0059] 7, the cover 13 is attached to the case 11 while holding the upper end (arrow U) of the shaft portion 122S of the shaft 12 and a second protrusion 142 (described later) of the coil spring 14. The cover 13 has a shaft fitting region 131, a protrusion region 132, a hole region 133, and a transmission tool insertion region 134.

[0060] The shaft fitting region 131 is a region into which the upper end (arrow U) of the shaft portion 122S fits. The inner diameter of the shaft fitting region 131 is the same as or approximately the same as the outer diameter of the shaft portion 122S.

[0061] The convex region 132 is a region that protrudes toward the lower side (arrow D) of the driven louver 60. The convex region 132 has a hole region 133, which will be described later.

[0062] The hole region 133 is a region provided in the convex region 132, through which a second convex portion 142 (described later) of the coil spring 14 is inserted. The shape of the hole region 133 can be changed as desired as long as the second convex portion 142 can be inserted therethrough.

[0063] The transmitter insertion region 134 has an inner diameter larger than the outer diameter of the transmitter 33 and is a region through which the transmitter 33 can be inserted. As with the hole 111, the inner diameter of the transmitter insertion region 134 can be set arbitrarily as long as it is larger than the outer diameter of the transmitter 33 so that the transmitter 33 does not come into direct contact with the transmitter 33 even when the cover 13 is fitted into the case 11.

[0064] 6 and 7, when the vertical direction (arrow UD) is set as the rotation axis, coil spring 14 is held by shaft 12 and cover 13 with elastic force exerted in the rotation axis direction, and applies a rotational force (biasing force) to shaft 12. Coil spring 14 has a first protrusion 141, a second protrusion 142, and a main body 143.

[0065] The first protrusion 141 is located at one end of the coil spring 14 and is provided on the underside (arrow D) of the coil spring 14. When the vertical direction (arrow UD) is taken as the rotation axis, the first protrusion 141 is a region that protrudes from the main body 143 in a direction toward the rotation axis (radially inward). The first protrusion 141 is inserted into the coil spring insertion region 122, whereby the coil spring 14 is held on the shaft 12.

[0066] The second protrusion 142 is located at the other end of the coil spring 14 (opposite the first protrusion 141) and is provided on the upper side (arrow U) of the coil spring 14. When the vertical direction (arrow UD) is taken as the rotation axis, the second protrusion 142 is a region that protrudes from the main body 143 in a direction away from the rotation axis (radially outward).

[0067] The second convex portion 142 has a first convex region 142R (see Figure 11), which is a region that protrudes radially outward from the main body portion 143, and a second convex region 142V (see Figure 11), which is a region that protrudes from the first convex region 142R in the rotational direction (circumferential direction) of the rotating shaft. The first convex region 142R is inserted into the hole region 133. The second convex region 142V extends so as to be positioned approximately parallel to a plane provided in the short-side direction of the convex region 132 (arrow FB).

[0068] The main body 143 (see FIG. 11) is located in the center of the coil spring 14, and is a region of the coil spring formed by winding around the rotation axis when the vertical direction (arrow UD) is the rotation axis.

[0069] Next, the configuration of second louver holding member 20 will be described.

[0070] FIG. 9 is a perspective view showing a configuration of a second louver holding member according to the embodiment of the present invention. FIG. 10 is a perspective view showing the configuration of the second louver holding member.

[0071] The second louver holding member 20 includes a case 21, a shaft 22, a worm wheel 23, and a worm gear 24. The second louver holding member 20 transmits the rotational movement (tilting movement) transmitted from the transmission device 33 to the driven louver 70, causing the driven louver 70 to rotate (tilt).

[0072] 9, the case 21 is a housing that houses the shaft 22, the worm wheel 23, and the worm gear 24. The case 21 has a hole portion 211, a housing portion 212, and a wheel 213.

[0073] The hole 211 has an inner diameter that is the same as or larger than the outer diameter of the transmission device 33, and allows the transmission device 33 to be inserted therethrough or the worm wheel 23 to be fitted therein. The hole 211 does not come into direct contact with the transmission device 33. The size of the inner diameter of the hole 211 can be set as desired to match the outer diameter of the transmission device 33 or the outer diameter of the worm wheel 23.

[0074] The housing part 212 is a part that houses the shaft 22, the worm wheel 23, and the worm gear 24. In addition, a wheel 213 is attached to the housing part 212, and the housing part 212 is attached to the head rail 31 via the wheel 213.

[0075] Wheel 213 is attached to housing 212 and can rotate around the short-side direction (arrow LR) as the rotation axis. That is, by having wheel 213, case 21 can move freely in the long-side direction (arrow LR).

[0076] 10, shaft 22 has a generally cylindrical shape extending in the up-down direction (arrow UD), and holds driven louver 70 at one end. Shaft 22 has a louver holding region 221, a worm gear fitting region 222, and a base portion 223.

[0077] Louver holding area 221 is provided on the lower side (arrow D), which is one end of shaft 22, and has recessed area 221H recessed upward (arrow U). By inserting and clamping driven louvers 70 into recessed area 221H, louver holding area 221 can hold driven louvers 70.

[0078] The worm gear fitting region 222 is a region provided on the upper side (arrow U) of the shaft 22, where the worm gear 24 is fitted. Base portion 223 is a region that connects louver holding region 221 and worm gear fitting region 222, and is located inside case 21 when second louver holding member 20 is assembled.

[0079] As shown in FIG. 10, the worm wheel 23 is a part that transmits the rotational force transmitted from the transmission member 33 to the worm gear 24. The worm wheel 23 has a transmission tool fitting region 231 and a helical region 232 .

[0080] The transmission tool fitting region 231 has an inner diameter that is approximately the same as the outer diameter of the transmission tool 33, and is a region on the inner circumferential surface of the worm wheel 23 that has a shape that corresponds to the shape of the transmission tool 33 so that the transmission tool 33 can be fitted therein. Specifically, the inner circumferential surface of the transmission tool fitting region 231 is provided with convex regions 231C that correspond to concave regions 33H that are recessed in a direction from the outer circumferential surface toward the rotation axis, for example, at every 120 degrees in the direction of the rotation axis in a cross section viewed from a direction perpendicular to the longitudinal direction (arrow LR) of the transmission tool 33 when the longitudinal direction (arrow LR) is the rotation axis. By having such a shape of the inner peripheral surface of the transmission tool fitting region 231, the transmission tool 33 can be fitted into the transmission tool fitting region 231.

[0081] The helical region 232 is a region of a spiral tooth profile provided on the outer peripheral surface of the worm wheel 23. The helical region 232 has a role of transmitting the rotational force transmitted from the transmission tool 33 to the worm gear 24.

[0082] As shown in FIG. 10, the worm gear 24 is a part that transmits the rotational force transmitted from the transmission member 33 to the shaft 22. The worm gear 24 has a fitting region 241 and a gear region 242 .

[0083] The fitting region 241 is a region into which the worm gear 24 is fitted via the worm gear fitting region 222 . The gear region 242 is a region of teeth provided on the outer peripheral surface of the worm gear 24. The gear region 242 has a role of transmitting the rotational force transmitted from the helical region 232 to the shaft 22.

[0084] Next, a method for assembling the louver holding member 10 will be briefly described.

[0085] FIG. 11 is a perspective view showing a state in which a coil spring is inserted into a shaft. FIG. 12 is a perspective view showing a state in which the louver holding area of ​​the shaft is housed in the case. FIG. 13 is a plan view showing a state in which the louver holding area of ​​the shaft through which the coil spring is inserted is housed in the case. FIG. 14 is a perspective view showing a state in which the cover is fitted onto the shaft in the state shown in FIGS. FIG. 15 is a perspective view showing a state in which the cover is rotated from the state shown in FIG. FIG. 16 is an image diagram showing the state in which one end of the coil spring is attached to the cover and the initial winding is applied.

[0086] When assembling the louver holding member 10, first, as shown in FIG. 11, the coil spring 14 is inserted into the coil spring insertion region 122 of the shaft 12. In FIG. 11, the coil spring 14 has the first protrusion 141 inserted into the recess 122H.

[0087] Next, as shown in FIG. 12, the shaft 12 through which the coil spring 14 is inserted is housed in the housing portion 112 of the case 11. Specifically, bottom 121B of louver holding area 121 of shaft 12 is inserted into hole 115H provided in bottom 115 of case 11 and is housed so as not to protrude downward (arrow D) from hole 115H. At this time, as shown in Figures 12 and 13, it is preferable to accommodate the shaft 12 so that the first convex region 142R of the coil spring 14 is positioned to extend in the longitudinal direction (arrow LR) and the second convex region 142V is positioned to extend in the lateral direction (arrow FB).

[0088] Next, as shown in FIG. 14, the second protrusion 142 of the coil spring 14 is inserted into the hole region 133 of the cover 13. Specifically, the upper end (arrow U) of the shaft portion 122S is fitted into the shaft fitting region 131 of the cover 13, and then the second convex portion 142 (particularly, the first convex region 142R) of the coil spring 14 is inserted into the hole region 133.

[0089] 15, cover 13 is rotated clockwise around the vertical direction (arrow UD) of shaft 12 as the rotation axis. By rotating cover 13 clockwise with second protrusion 142 of coil spring 14 inserted, the initial winding can be applied to coil spring 14, and elastic force can be imparted to coil spring 14.

[0090] Next, as shown in FIG. 16, the cover 13 is fitted into the fitting portion 113 of the case 11 while being moved downward (arrow D). It should be noted that in FIG. 16, for the sake of explanation, the shaft portion 122S of the shaft 12 is omitted, and the coil spring 14 is moved in the upward direction (arrow U). By the above assembly procedure, the louver holding member 10 can be assembled.

[0091] Next, the tilting operation of the driven louvers 70 and the driven louvers 60 will be briefly described. FIG. 17 is a schematic diagram showing the tilting operation of the driven louvers 70 and the driven louvers 60. As shown in FIG.

[0092] FIG. 17 shows the positional changes of the driven louvers 70 and the driven louvers 60 as viewed from above (arrow U) in (A) to (E). In Figure 17 (A), the driven louvers 60 are positioned approximately parallel to the longitudinal axis (dotted line) (arrow LR), and the driven louvers 70 are positioned at a slight clockwise rotation angle relative to the longitudinal axis (arrow LR).

[0093] When a user holds the operating grip 42 (see Figure 1) of the operating tool 40 and rotates the operating tool 40 around the vertical direction (arrow UD) as the axis of rotation, the driving louvers 70 and the driven louvers 60 rotate clockwise around the longitudinal axis (arrow LR), as shown in (A) to (E) of Figure 17.

[0094] Specifically, a clockwise rotational motion (arrow A1) of the operating tool 40 by the user with the up-and-down direction (arrow UD) as the rotation axis is transmitted to the worm wheel 23 of the second louver holding member 20 via the transmission tool 33 (see FIG. 4). The rotational motion transmitted to the worm wheel 23 rotates the worm gear 24, and the shaft 22 fitted to the worm gear 24 and the driven louver 70 held by the louver holding region 221 of the shaft 22 rotate clockwise (arrow A2) about the axis in the longitudinal direction (arrow LR).

[0095] 17B shows a state in which the driven louvers 70 have rotated clockwise by approximately 45 degrees relative to the longitudinal axis (arrow LR). At this time, the driven louvers 60 are in a position that has a slight clockwise rotation angle relative to the longitudinal axis (arrow LR).

[0096] When the driving louvers 70 are further rotated, as shown in Figure 17 (C), so that the driving louvers 70 are rotated clockwise (arrow A2) by approximately 90 degrees relative to the longitudinal axis (arrow LR), the driven louvers 60 are rotated clockwise (arrow A3) by approximately 30 degrees relative to the longitudinal axis (arrow LR) against the rotational force (biasing force) of the coil spring 14, because the elastic force imparted to the coil spring 14 applies a rotational force (biasing force) to the shaft 12 so as to fill the gaps between the driving louvers 70.

[0097] When the driving louvers 70 are further rotated, as shown in (D) of Figure 17, so that the driving louvers 70 are rotated clockwise (arrow A2) by approximately 135 degrees relative to the longitudinal axis (arrow LR), the driven louvers 60 are rotated clockwise (arrow A3) by approximately 90 degrees relative to the longitudinal axis (arrow LR) against the rotational force (biasing force) of the coil spring 14, because the elastic force imparted to the coil spring 14 applies a rotational force (biasing force) to the shaft 12 so as to fill the gaps between the driving louvers 70.

[0098] When the driving louvers 70 are further rotated, as shown in (E) of Figure 17, so that the driving louvers 70 are rotated approximately 170 degrees clockwise (arrow A2) relative to the longitudinal axis (arrow LR), the driven louvers 60 are rotated clockwise (arrow A3) approximately 180 degrees relative to the longitudinal axis (arrow LR) against the rotational force (biasing force) of the coil spring 14, because the elastic force imparted to the coil spring 14 applies a rotational force (biasing force) to the shaft 12 so as to fill the gaps between the driving louvers 70. As in the cases shown in (A) to (E) of Figure 17, when the driving louvers 70 are rotated and placed in a counterclockwise rotational state about the longitudinal axis (arrow LR), the driven louvers 60 resist the rotational force (biasing force) of the coil spring 14 about the longitudinal axis (arrow LR) and are placed in a counterclockwise rotational state because the elastic force imparted to the coil spring 14 applies a rotational force (biasing force) to the shaft 12 so as to fill the gaps between the driving louvers 70.

[0099] In other words, the driven louvers 60 are positioned between multiple driven louvers 70, and by having elastic force imparted to the coil spring 14, they perform tilting movements in conjunction with the tilting movements of the driven louvers 70, which rotate in response to the rotation of the operating tool 40 by the user.

[0100] As described above, the louver holding member 10 according to the embodiment of the present invention is a louver holding member 10 in a solar shading device 100 having driven louvers 70 that tilt due to a force transmitted from a transmission device 33, each extending in a predetermined direction, and driven louvers 60 that tilt due to a force transmitted from the driven louvers 70 and the rotational force (spring force) of the coil springs 14, and the louver holding member 10 that holds the driven louvers 60 comprises a shaft 12 that holds the driven louvers 60 at one end, a case 11 that houses the shaft 12, a coil spring 14 whose one end is held by the shaft 12, and a cover 13 that holds the other end of the shaft 12 and the other end of the coil spring 14 and is attached to the case 11, and the coil spring 14 is held by the shaft 12 and the cover 13 with elastic force applied to it.

[0101] According to this, the shaft 12, which is given elastic force by the coil spring 14, has a louver holding member 10 that holds the driven louver 60, so that the tilt movement of the driven louver 70, which tilts due to the force transmitted from the transmission device 33, can be transmitted to the driven louver 60. In addition, by rotating cover 13 clockwise while holding the other end of coil spring 14, elastic force can be applied to coil spring 14, and in that state, cover 13 holding the other end of coil spring 14 can be attached to case 11. Therefore, anyone can easily wind the initial winding on the coil spring 14 of the louver holding member 10 without using any tools or jigs. Therefore, it is possible to realize a louver holding member 10 that allows the initial winding of the coil spring to be easily performed.

[0102] Additionally, the cover 13 of the louver holding member 10 has a convex region 132 that is a region that protrudes toward the driven louver 60, and the convex region 132 has a hole region 133 through which the other end of the coil spring 14 is inserted.

[0103] With this, by inserting the other end of the coil spring 14 into the hole region 133, the cover 13 can be attached to the case 11 while stably holding the other end of the coil spring 14.

[0104] Furthermore, louver holding member 10 has first protrusion 141, which is a region where one end of coil spring 14 protrudes radially inward from main body 143.

[0105] According to this, by providing first protrusion 141, which is a region held by shaft 12, at one end of coil spring 14, shaft 12 can stably hold coil spring 14.

[0106] In addition, the other end of the coil spring 14 of the louver holding member 10 has a first convex region 142R, which is a region that protrudes radially outward from the main body portion 143, and a second convex region 142V, which is a region that protrudes circumferentially from the first convex region 142R.

[0107] According to this, by inserting first convex region 142R into hole region 133 and extending second convex region 142V so as to be positioned approximately parallel to the plane of convex region 132, cover 13 can stably hold the other end of coil spring 14. Furthermore, by inserting first convex region 142R into hole region 133, it is possible to reliably prevent coil spring 14 from coming off cover 13 when winding the initial winding. Furthermore, if the rotational force is insufficient, cover 13 can be removed from case 11 and the initial winding can be adjusted. It is also possible to reliably prevent coil spring 14 from coming off cover 13 when adjusting the initial winding.

[0108] In addition, the shaft 12 of the louver holding member 10 is provided with an area 122 for inserting the coil spring 14, which has an axis portion 122S which is an area for inserting the main body portion 143 of the coil spring 14, a recessed portion 122H having a volume for inserting the first convex portion 141, and a groove portion 122D whose radial groove depth decreases as it moves from the vertical cover 13 side toward the driven louver 60 side.

[0109] According to this, by inserting the first convex portion 141 of the coil spring 14 into the recess 122H, the coil spring 14 can be easily moved in the vertical direction (arrow UD) while the coil spring 14 is inserted into the shaft 12, making it easy to insert the first convex region 142R into the hole region 133, and the shaft 12 through which the coil spring 14 is inserted can be easily fitted to the cover 13. Furthermore, by inserting the first protrusion 141 into the recess 122H, the shaft 12 can stably hold the coil spring 14.

[0110] In addition, the solar shading device 100 according to an embodiment of the present invention includes a driven louver 70, a driven louver 60, a louver holding member 10 that holds the driven louver 60, a second louver holding member 20 that holds the driven louver 70, an operating device 40 that transmits force to a transmission device 33 to open, close, and tilt the driven louvers 70 and the driven louvers 60, and a head rail 31 that holds the second louver holding member 20, the louver holding member 10, and the transmission device 33.

[0111] According to the above-mentioned solar shading device 100, the opening / closing and rotational movements of the operating device 40 are transmitted to the second louver holding member 20 via the transmission device 33, thereby enabling the opening / closing and tilting movements of the driven louver 70 held by the second louver holding member 20 to be performed. Furthermore, since the opening / closing and tilting operations of the driven louver 70 held by the second louver holding member 20 can be transmitted to the driven louver 60 held by the louver holding member 10 having the above-mentioned configuration, the opening / closing and tilting operations of the driven louver 60 can also be performed. Therefore, it is possible to realize a solar shading device 100 that includes a louver holding member 10 that allows the initial winding of the coil spring to be easily performed.

[0112] 3. Extension of the embodiment of the present invention The invention made by the inventor has been specifically described above based on an embodiment, but it goes without saying that the invention is not limited thereto and can be modified in various ways without departing from the spirit of the invention.

[0113] In the solar shading device 100 in the above-described embodiment, the louver holding area 121 holds the translucent driven louvers 60, but it may also hold opaque louvers such as the driven louvers 70 instead of the translucent driven louvers 60. In addition, in the solar shading device 100 in the above-described embodiment, the louver holding area 221 holds the opaque driven louvers 70, but it may also hold translucent louvers such as the driven louvers 60 instead of the opaque driven louvers 70.

[0114] 18 and 19, the solar shading device 100B can further include, in addition to the operating device 40 described above, an operating device 50 for opening and closing the driven louvers 70 and the driven louvers 60. That is, although the above solar shading device 100 has been described as being operated using only the operating device 40, the solar shading device 100B can be configured so that it can also be operated using a combination of the operating device 40 and the operating device 50.

[0115] The operating tool 50 includes a pair of operating cords 51A, 51B hanging down from the head rail 31, and a tension weight 52 located below the pair of operating cords 51A, 51B (arrow D). Additionally, the second louver holding member 20 opens and closes the driven louvers 70 and the driven louvers 60 in accordance with the operation of the operating device 50. Specifically, operating cords 51A, 51B are arranged inside head rail 31 and are connected to louver holding member 10 and second louver holding member 20. When operating cords 51A, 51B are pulled, louver holding member 10 and second louver holding member 20 open or close in the longitudinal direction (arrow LR) of head rail 31 according to the amount operating cords 51A, 51B are pulled. A tension weight 52 is provided to prevent the strings from sagging from the head rail 31, and tension is applied to the operating strings 51A and 51B.

[0116] For example, when a user moves the front operating cord 51A (arrow F) downward (arrow D) of the pair of operating cords 51A, 51B, the rear operating cord 51B (arrow B) rises. At this time, in response to the movement of the pair of operating cords 51A, 51B, the driven louver 70 held by the second louver holding member 20 and the driven louver 60 held by the louver holding member 10 move to the right (arrow R) in the longitudinal direction (arrow LR). On the other hand, by moving the rear operating string 51B (arrow B) downward (arrow D) of the pair of operating strings 51A, 51B, the front operating string 51A (arrow F) rises. At this time, in response to the movement of the pair of operating strings 51A, 51B, the driven louvers 70 held by the second louver holding member 20 and the driven louvers 60 held by the louver holding member 10 move to the left (arrow L) in the longitudinal direction (arrow LR).

[0117] Therefore, by pulling each of the pair of operating cords 51A, 51B of the operating device 50, the user can move the driven louver 70 held by the second louver holding member 20 and the driven louver 60 held by the louver holding member 10 left and right. [Explanation of symbols]

[0118] 10... louver holding member, 11... case, 12... shaft, 13... cover, 14... coil spring, 20... second louver holding member, 21... case, 22... shaft, 23... worm wheel, 24... worm gear, 31... head rail, 32... bracket, 33... transmission device, 40... , 50... operating device, 41... fastener, 42... operating grip, 51A, 51B... operating cord, 52... tension weight, 60... driven louver, 70... driven louver, 100... sunshade device, 111... hole portion, 112... housing portion, 113... fitting portion, 114... wheel, 121... louver holding Region, 122...coil spring insertion region, 122D...groove portion, 122H...recessed portion, 122S...shaft portion, 123...base portion, 131...shaft fitting region, 132...convex region, 133...hole region, 134...transmission tool insertion region, 141...first convex portion, 142...second convex portion, 142R...first convex region, 142V...second convex region, 143...main body portion, 211...hole portion, 212...casing portion, 213...wheel, 221...louver holding region, 222...worm gear fitting region, 223...base portion, 231...transmission tool fitting region, 232...helical region, 241...fitting region, 242...gear region

Claims

1. In a solar shading device including a driven louver that tilts in response to a force transmitted from a transmission tool and a driven louver that tilts in response to a force transmitted from the driven louver, the driven louver having a louver holding member that holds the driven louver, the louver holding member comprising: a shaft that holds the driven louver at one end; a case that houses the shaft; a coil spring having one end held by the shaft; a cover attached to the case and holding the other end of the shaft and the other end of the coil spring; It is equipped with The coil spring is held by the shaft and the cover while being subjected to elastic force. Louver holding member.

2. The louver holding member according to claim 1, the cover has a convex area that protrudes toward the driven louver, The convex region has a hole region through which the other end of the coil spring is inserted. Louver holding member.

3. The louver holding member according to claim 1, One end of the coil spring has a first protrusion that is a region that protrudes radially inward from a main body portion. Louver holding member.

4. The louver holding member according to claim 3, the other end of the coil spring has a first convex region that is a region that protrudes radially outward from the main body portion, and a second convex region that is a region that protrudes circumferentially from the first convex region, Louver holding member.

5. The louver holding member according to claim 3, The shaft is characterized in that it has an area for inserting the coil spring, which has an axial portion that is an area for inserting the main body of the coil spring, a recess having a volume for inserting the first convex portion, and a groove portion whose depth in the radial direction decreases as it goes from the cover side in the vertical direction toward the driven louver side. Louver holding member.

6. The driven louver; The driven louver; The louver holding member according to claim 1 , which holds the driven louver; a second louver holding member that holds the driven louver; an operating tool for transmitting a force to the transmitting tool to perform opening / closing and tilting operations of the driven louvers and the driven louvers; a head rail that holds the second louver holding member, the louver holding member, and the transmission device; characterized in that it comprises Sunshading device.

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