JP7438049B2 - Solar shading devices and operating devices for solar shading devices - Google Patents

Description

The present invention relates to a solar shading device and an operating device for a solar shading device.

Conventionally, shielding devices (solar shading devices) such as blinds, curtains, and partitions have been equipped with a head box (head rail) and two shielding members connected to the head box via a winding cord so that they can be raised and lowered. known (for example, see Patent Document 1). The two shielding materials are arranged vertically in parallel with each other in the vertical direction. An operation code is provided for each of the two shielding materials.

Japanese Patent Application Publication No. 2020-20174

By the way, in a solar radiation shielding device including a plurality of shielding materials, the shielding materials are raised and lowered by operating an operation code corresponding to each shielding material. However, for example, it may be difficult to unambiguously determine which operation code among a plurality of operation codes is used to operate which shielding material. Therefore, the operator may operate a shielding material other than the desired shielding material.

Further, for example, in Patent Document 1, each operation code is arranged on the left and right with respect to the shielding members arranged vertically in parallel. Therefore, it is not clear which operation code the upper shielding material corresponds to, the left or the right, and the user may end up operating the shielding material that is not the one he or she wants to operate.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a technique that facilitates the operation of a desired shielding material among a plurality of shielding materials.

In order to solve the above problems, a solar radiation shielding device according to the present invention includes: a headrail; a plurality of shielding members supported along the longitudinal direction of the headrail so as to be movable up and down with respect to the headrail; An operation having a plurality of operation cords provided for raising and lowering each of the plurality of shielding materials, and a plurality of cord pulleys attached to the head rail and capable of winding up and unwinding the plurality of operation cords, respectively. a device, the operating device has a plurality of guide portions that guide each of the plurality of operation cords in and out, and the positions of the plurality of guide portions in the operating device are respectively arranged so that the plurality of shielding members It is characterized by having the same positional relationship as that of .

Furthermore, in order to solve the above-mentioned problems, an operating device for a solar shading device according to the present invention is used for raising and lowering a plurality of shielding members that are supported so as to be able to rise and lower with respect to a housing-shaped head rail of a solar shading device. a plurality of cord pulleys, each of which is capable of winding up and unwinding a plurality of operation cords that are attached to the head rail and used for raising and lowering each of the plurality of shielding members; and a case that accommodates the cord pulley. , the case has a plurality of guide parts that guide each of the plurality of operation cords in and out, and the positions of the plurality of guide parts in the case each correspond to the positional relationship between the plurality of shielding materials. They are characterized by having the same positional relationship.

According to the present invention, it is possible to easily operate a desired shielding material among a plurality of shielding materials.

FIG. 1 is a front view of a solar radiation shielding device according to a first embodiment. FIG. 2 is a side view of the solar radiation shielding device shown in FIG. 1. FIG. It is a perspective view of the operating device in the solar radiation shielding device. FIG. 3 is a front view of the operating device. FIG. 3 is a side view of the operating device seen from the right side. FIG. 4 is a cross-sectional view of the operating device taken along line VI-VI in FIG. 3; FIG. 3 is an exploded perspective view of a pulley operation drive unit of the operating device. It is a perspective view for explaining the structure of a case, and is a figure which looked at the case diagonally from the upper right. FIG. 3 is a diagram for explaining the configuration of a cord guide member, in which (a) is a perspective view, (b) is a front view seen from the front side, and (c) is a plan view seen from above. FIG. 9(c) is a cross-sectional view taken along line XX in FIG. 9(c). 7 is a sectional view taken along the line XI-XI in FIG. 6. FIG. 6 is a sectional view taken along line XII-XII in FIG. 5. FIG. FIG. 3 is a diagram for explaining the configuration of a regulating member, in which (a) is a longitudinal cross-sectional view of the regulating member along the hanging direction of the operation cord, and (b) is an enlarged view of portion XIII in (a). 2A and 2B are diagrams for explaining the configuration of the cord pulley, in which (a) is a perspective view of the cord pulley viewed from the right side, and (b) is a perspective view of the cord pulley viewed from the left side. It is a figure which shows the operating device with the cover removed. FIG. 2 is a perspective view for explaining the configuration of a housing of a one-way clutch device, in which (a) is a perspective view of the housing viewed from the right side, and (b) is a perspective view of the housing viewed from the left side. FIG. 3 is a perspective view of a clutch unit of the operating device. FIG. 3 is an exploded perspective view of the clutch unit. FIG. 3 is a developed view for explaining the configuration of a cam drum of the clutch unit, and shows the clutch unit in a released state. FIG. 3 is a developed view of the cam drum showing the engaged state of the clutch unit. FIG. 3 is a developed view of the cam drum showing a state where the rotation of the clutch unit is stopped (clutch spring slipping state). FIG. 6 is a developed view of the cam drum showing a holding state in which the position of the front curtain is held. FIG. 7 is a front view of a solar radiation shielding device according to a second embodiment. 24 is a side view of the solar radiation shielding device shown in FIG. 23. FIG.

Embodiments of the present invention will be described below with reference to the drawings.

The solar radiation shielding device according to the present invention is a known solar radiation shielding device, and is not limited to a specific solar radiation shielding device. Examples of shielding materials include folded curtains (Roman shades), vertical blinds, aluminum blinds, pleated screens, shutters. It is applicable to etc. For example, the operating device 1 according to the present invention is applied to a solar radiation shielding device 100 shown in FIGS. 1 and 2.

<First embodiment>
FIG. 1 is a front view of a solar radiation shielding device according to a first embodiment. FIG. 2 is a side view of the solar radiation shielding device shown in FIG. 1. The solar radiation shielding device 100 is fixed to a window frame or a wall around the window, for example, to enable visibility of the outside from inside the room, to prevent visibility of the inside of the room from the outside, and to prevent light and wind from entering the room. It is a cover that allows light to enter the room and prevents light and wind from entering the room.

For convenience of explanation, the direction in which the head rail 101 of the solar radiation shielding device 100 extends is defined as the longitudinal direction (left-right direction) LR. Further, in the longitudinal direction LR, for example, in FIG. 1 viewed from the indoor side, the left side is referred to as "left side L", and the right side is referred to as "right side R". Furthermore, the direction in which the shielding members 12 and 13 hang down or move up and down with respect to the head rail 101 is defined as an up-down direction (down direction, up-down direction) UD. Further, in the up-down direction UD, the side of the head rail 101 is referred to as the "upper side U", and the side farther downward from the head rail 101 is referred to as the "lower side D". Further, a direction intersecting the longitudinal direction LR and the up-down direction UD is defined as a transversal direction (front-back direction) FB. Further, in the lateral direction, for example, the indoor side is defined as "front side F", and the outdoor side is defined as "rear side B".

The solar radiation shielding device 100 according to the first embodiment includes a housing-shaped head rail 101, two shielding members 12, 13, lifting cords 14, 15, and an operating device 1 having operation cords 16, 17. , is provided.

The solar radiation shielding device 100 according to the first embodiment includes a head rail 101, and a front curtain 12 and a rear curtain 13 that are supported to be movable up and down with respect to the head rail 101 along the longitudinal direction LR of the head rail 101. , a plurality of operating cords 16 and 17 used for raising and lowering the front curtain 12 and the rear curtain 13, respectively, and a plurality of operating cords 16 and 17 that are attached to the head rail 101 and capable of winding and unwinding the operating cords 16 and 17, respectively. An operating device 1 having cord pulleys 21 and 31 is provided. The operating device 1 has a plurality of guide parts (hereinafter also referred to as "cord guide members") 40 and 50 that guide the operating cords 16 and 17 in and out, respectively. The positions have the same positional relationship as the positional relationship between the plurality of shielding materials 12 and 13, respectively.

Further, the front curtain 12 and the rear curtain 13 are supported by the head rail 101 at a predetermined distance from each other in a transverse direction FB that intersects the vertical direction UD and intersects the longitudinal direction LR. The first guide part 40 for the operation cord 16, which is used for raising and lowering the front curtain 12, is located on the side of the front curtain 12 in the lateral direction FB, and is used for raising and lowering the rear curtain 13. The second guide portion 50 for the operation code 17 is located on the side of the rear curtain 13 in the transverse direction FB. The configuration of the solar radiation shielding device 100 will be described below.

The head rail 101 is formed into an elongated housing shape with a housing space inside. The head rail 101 has a bracket 102. The head rail 101 is attached via a bracket 102 to an attachment target such as a window frame or a wall around the window. An operating device 1, which will be described later, is attached to one end (right side R in FIG. 1) of the head rail 101 in the longitudinal direction LR. Note that the head rail 101 is not limited to a housing shape, and may have an I-shaped cross section along the width direction FB. Further, the operating device 1 can also be attached inside the head rail 101.

Inside the head rail 101, three winding drums 112a and 113a are provided which are arranged one above the other in the vertical direction UD. The winding drum 112a is located on the lower side D with respect to the winding drum 113a.

The winding drums 112a are arranged side by side along the longitudinal direction LR of the head rail 101. Each winding drum 112a is connected to each other by a lifting shaft 112b. The elevating shaft 112b is rotatably supported on the head rail 101.

The winding drums 113a are arranged side by side along the longitudinal direction LR of the head rail 101. Each winding drum 113a is connected to each other by a lifting shaft 113b. The elevating shaft 113b is rotatably supported on the head rail 101.

In addition, in the solar radiation shielding device 100, the number of each winding drum 112a, 113a is not specifically limited.

The front curtain 12 and the rear curtain 13 are supported along the longitudinal direction LR of the headrail 101 so as to be movable up and down relative to the headrail LR. The front curtain 12 is located on the indoor side F with respect to the shielding material 13 in the transverse direction FB. The rear curtain 13 is located on the outdoor B side with respect to the front curtain 12 in the lateral direction FB.

The front curtain 12 is rolled up to the head rail 101 via three lifting cords 14. Each lifting cord 14 is fixed at one end to each winding drum 112a. The other end of each lifting cord 14 is attached to the lower end of the front curtain 12 in the up-down direction UD via a cord adjuster 141 on the side of the front curtain 12 facing the rear curtain 13.

The front curtain 12 is raised by each lifting cord 14 being wound around each winding drum 112a by the rotational force transmitted from the operating device 1 via the lifting shaft 112b, and lowered by being unwound.

The rear curtain 13 is rolled up with respect to the head rail 101 via three lifting cords 15. Each lifting cord 15 is fixed at one end to each winding drum 113a. Each lifting cord 15 is attached at the other end to the lower end of the rear curtain 13 in the vertical direction UD via a cord adjuster 151 to the side of the rear curtain 13 opposite to the front curtain 12 (rear side B). There is.

The trailing curtain 13 is raised by the rotational force transmitted from the operating device 1 via the lifting shaft 113b so that each lifting cord 15 is wound around each winding drum 113a, and lowered by being unwound. In FIG. 1, each lifting cord 15 cannot be seen because it overlaps with the lifting cord 14 of the front curtain 12 in the front-rear direction FB.

In this embodiment, the lifting cords 14 and 15 are suspended from three places, but depending on the length of the solar radiation shielding device 100, the number of winding drums 112a and 113a installed, etc. It may hang down from more than one point.

FIG. 3 is a perspective view of the operating device in the solar radiation shielding device. FIG. 4 is a front view of the operating device seen from the front side. FIG. 5 is a side view of the operating device seen from the right side.

The operating device 1 according to the present embodiment is used for raising and lowering a front curtain 12 and a rear curtain 13 that are supported in a vertically movable manner with respect to a head rail 101 of a solar shading device 100, and is attached to the head rail. A plurality of cord pulleys 21 and 31 capable of winding up and unwinding operation cords 16 and 17 used for raising and lowering the rear curtains 12 and 13, respectively, and a case 11 that accommodates the cord pulleys 21 and 31. Be prepared. The case 11 has cord guide members 40 and 50 that guide the operating cords 16 and 17 in and out, respectively, and the positions of the cord guide members 40 and 50 in the case 11 are determined by the positional relationship between the front curtain 12 and the rear curtain 13, respectively. This is the same positional relationship.

Further, the cord guide members 40 and 50 are provided at a predetermined interval from each other in a direction FB that intersects the vertical direction UD of the front curtain 12 and the rear curtain 13 and intersects the longitudinal direction LR. . The cord guide member (first guide section) 40 guides the operation cord 16 to the front curtain 12 supported on the side of the cord guide member 40 (front side F) in the head rail 101, and serves as a cord guide member (second guide section). 50 guides the operating cord 17 to the rear curtain 13 supported on the side of the cord guide member 50 (rear side B) in the head rail 101.

Further, the cord pulleys 21 and 31 rotate in mutually different directions R1 and R2 during a lifting operation, and are arranged one above the other in the lifting direction UD. The operating cord 17 corresponding to the upper cord pulley 31 is guided between the lower cord pulley 21 and the upper cord pulley 31 from the inside of the case 11 to the outside, and is rotatably supported within the case 11. It further includes a roller 85. The configuration of the operating device 1 will be described below.

In the solar radiation shielding device 100, the operating device 1 is attached, for example, to the right end R of the head rail 101. The operating device 1 individually raises and lowers the front curtain 12 and the rear curtain 13 in accordance with the operation of operating cords 16 and 17 hanging from the operating device 1. The operating device 1 includes two pulley operating drive units 20, 30, two clutch units 60, 70, operating cords 16, 17, and regulating members 18, 19.

The operation codes 16 and 17 are used to drive cord pulleys 21 and 31 of the operating device 1, which will be described later, to operate the front curtain 12 and the rear curtain 13 to move up and down. One end of the operating cords 16 and 17 is fixed to cord pulleys 21 and 31 of the operating device 1, which will be described later. The operating cords 16 and 17 hang down from the operating device 1 at a predetermined interval in the front-rear direction FB.

The pulley operation drive units 20 and 30 generate driving force for raising and lowering the front curtain 12 and the rear curtain 13 by pulling the operation cords 16 and 17. FIG. 6 is a sectional view of the operating device taken along line VI-VI in FIG. FIG. 7 is an exploded perspective view of the pulley operation drive unit.

The pulley operation drive units 20 and 30 are arranged side by side in the vertical direction UD. The pulley operation drive unit 20 is located below the pulley operation drive unit 30 in the vertical direction UD. The pulley operation drive unit 30 is located above the pulley operation drive unit 20 in the vertical direction UD. The pulley operation drive units 20 and 30 rotate in mutually different directions R1 and R2 when the front curtain 12 and the rear curtain 13 are raised and lowered.

The pulley operation drive unit 20 is provided for raising and lowering the front curtain 12. The pulley operation drive unit 30 is provided for raising and lowering the rear curtain 13. The pulley operation drive units 20 and 30 are housed in a common case 11. The pulley operation drive units 20 and 30 each have a cord pulley 21 and 31 and a one-way clutch device 22 and 32.

FIG. 8 is a perspective view for explaining the structure of the case, and is a view of the case as viewed diagonally from the upper right. The case 11 houses cord pulleys 21 and 31 and one-way clutch devices 22 and 32. The cord pulley 21 and one-way clutch device 22 of the pulley operation drive unit 20 are engaged with each other and lined up along the longitudinal direction LR. The cord pulley 21 and the one-way clutch device 22 are arranged so as to be rotatable together about the same rotation axis x1. Moreover, the cord pulley 31 and the one-way clutch device 32 of the pulley operation drive unit 30 are engaged with each other and lined up along the longitudinal direction LR. The cord pulley 31 and the one-way clutch device 32 are arranged so as to be rotatable together about the same rotation axis x2.

The accommodation space S in the case 11 is defined by a side wall 111, a front wall 112, a rear wall 113, an upper wall 114, and a lower wall 115. The case 11 is open toward the right side R, which is opposite to the head rail 101 in the longitudinal direction LR, and is closed by a cover 116.

The side wall 111 is located on the side of the clutch units 60 and 70 (left side L) in the longitudinal direction LR. The front wall 112 is located on the opposite side (front side F) from the bracket 102 in the front-rear direction FB. The rear wall 113 is the side to which the bracket 102 is attached, and is located on the side (rear side B) opposite to the front wall 112 in the front-rear direction FB. The upper wall 114 is located on the upper side U of the case 11 in the up-down direction UD. The lower wall 115 is located on the side (lower side D) opposite to the upper wall 114 in the vertical direction UD.

A recess 117 is formed on the opposite side of the lower wall 115 from the side wall 111 and partially extends toward the side wall 111 along the longitudinal direction LR. The lower wall 115 has a protrusion 115a that protrudes toward the cover 116 at a central portion in the front-rear direction FB. Two accommodating parts 117F and 117B are formed with the protrusion 115a in between in the front-rear direction FB.

The housing portions 117F and 117B are spaced apart from each other by a predetermined distance in the front-rear direction FB. The housing portion 117F is located on the front wall 112 side in the front-rear direction FB. The housing portion 117B is located on the rear wall 113 side in the front-rear direction FB. In the accommodating portion 117F, the front wall 112 and the protruding portion 115a each have a guide strip 115b on opposing surfaces. Further, in the housing portion 117B, the rear wall 113 and the protruding portion 115a each have a guide strip 115c on opposing surfaces. The guide strips 115b, 115c extend in the longitudinal direction LR.

The case 11 further includes two cord guide members (guide parts) 40 and 50. The cord guide members 40 and 50 are attached to the case 11 at the recess 117 of the lower wall 115. The cord guide members 40 and 50 guide the operation cords 16 and 17, each of which has one end fixed to the cord pulleys 21 and 31, into and out of the case 11. The cord guide members 40 and 50 are provided in the recess 117 at a predetermined distance from each other in the front-rear direction FB. Note that since the cord guide members 40 and 50 have the same configuration, the configuration will be explained below using the cord guide member 40 as an example.

FIG. 9 is a diagram for explaining the configuration of the cord guide member, in which (a) is a perspective view, (b) is a front view seen from the front side, and (c) is a plan view seen from above. It is. FIG. 10 is a sectional view taken along line XX in FIG. 9(c). The cord guide member 40 is a rectangular cylindrical member that is approximately rectangular in plan view. The cord guide member 40 has a guide hole 41, an engagement recess 42, and an inclined portion 43.

The guide hole 41 extends along the axis x3 extending in the up-down direction UD when the cord guide member 40 is attached to the case 11. A winding portion 161 of the operation cord 16, which will be described later, is led out of the case 11 through the guide hole 41.

The engagement recess 42 engages with the guide strip 115c in the receiving portion 117F of the recess 117 in the lower wall 115. The engagement recess 42 is formed concavely from the outer surface of the cord guide member 40 toward the axis x3. The engagement recess 42 extends annularly around the axis x3.

The slope portion 43 has a slope 44 extending diagonally with respect to the axis x3. The slope 44 of the slope portion 43 faces toward the cover 116 (right side R) when the cord guide member 40 is attached to the case 11. The sloped portion 43 further includes a recessed portion 45 in which a portion of the sloped surface 44 where the guide hole 41 is formed is recessed. When the operation cord 16 is not operated, a joint cover portion 181 of the regulating member 18, which will be described later, comes into contact with the recess 45. The recess 45 has a shape that accommodates the tip 183 of the joint cover part 181.

The positions of the two cord guide members 40 and 50 in the operating device 1 are the same as the positional relationship between the front curtain 12 and the rear curtain 13, respectively. FIG. 11 is a sectional view taken along the line XI-XI in FIG. 6. The cord guide member 40 for the operation cord 16 connected to the front curtain 12 is connected to the cord guide member 50 for the operation cord 17 connected to the rear curtain 13 in the front-rear direction (short direction) FB. located on the side of That is, the cord guide member 40 is located on the front side F with respect to the cord guide member 50 in the front-rear direction FB. Thereby, when the operator wants to raise or lower the front curtain 12, the operator can raise or lower the front curtain 12 without making a mistake by selecting and pulling the operating cord 16 located relatively on the front side F.

Similarly, a cord guide member 50 that guides the operating cord 17 for operating the rear curtain 13 located on the rear side B in the front-rear direction FB in and out of the operating device 1 is connected to the front curtain 12 located on the front side F in the front-rear direction FB. It is located on the rear side B with respect to the cord guide member 40 that guides the operating cord 16 for operation in and out of the operating device 1. Thereby, when the operator wants to raise or lower the rear curtain 13, the operator can raise or lower the rear curtain 13 without making a mistake by selecting and pulling the operation cord 17 located relatively on the rear side B.

Note that although the cord guide members 40 and 50 are formed separately from the case 11 in this embodiment, they may be formed integrally with the lower wall 115 of the case 11. In this case, holes or the like are formed at predetermined intervals in the front-rear direction FB of the lower wall 115.

The operation cord 16 is located indoors (on the front side F) with respect to the operation cord 17. The operation cord 17 is located outdoors (on the rear side) B with respect to the operation cord 16. The operation code 16 is for operating the raising and lowering of the front curtain 12. The operation code 17 is for operating the raising and lowering of the rear curtain 13.

Regulation members 18 and 19 are attached to the operation cords 16 and 17 to restrict the operation cords 16 and 17 from being wound into the case 11. The operation cords 16 and 17 have cylindrical operation grips 163 and 173. The operating grips 163, 173 are attached to the ends of the operating sections 162, 172 of the operating cords 16, 17 that are not fixed to the regulating members 18, 19 (see FIG. 2). Note that since the operation codes 16 and 17 have the same configuration, the configuration will be explained below using the operation code 16 as an example.

FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. FIG. 13 is a diagram for explaining the configuration of the regulating member, in which (a) is a longitudinal cross-sectional view of the regulating member along the hanging direction of the operation cord, and (b) is an enlarged view of part XIII in (a). It is a diagram. The operation cord 16 has a winding section 161 and an operation section 162. The winding section 161 and the operating section 162 are connected to each other by the regulating member 18.

The regulating members 18 and 19 are attached to the operation cords 16 and 17 and come into contact with the case 11 when the front curtain 12 and the rear curtain 13 are not raised or lowered to prevent the operation cords 16 and 17 from being wound into the case 11. regulate. The regulating members 18 and 19 are in contact with the case 11 at the tip portions 183 and 193 when the front curtain 12 and the rear curtain 13 are not raised or lowered. The bottom portions 187, 197 of the regulating members 18, 19 are located on the side opposite to the head rail 101 (right side R) with respect to the tip portions 183, 193 in the longitudinal direction LR. Note that since the regulating members 18 and 19 have the same structure, the structure will be explained below using the regulating member 18 as an example.

The regulating member 18 includes a joint cover portion 181 and a joint portion 182. The joint cover part 181 and the joint part 182 are engaged with each other.

When the regulating member 18 is attached to the operating cord 16, the distal end portion 183 of the joint cover portion 181 located on the side of the case 11 is in contact with the cord guide member 40 when the front curtain 12 is not raised or lowered. . In this contact state, the base end (bottom part 187) of the joint part 182 on the opposite side to the case 11 is located on the right side R in the longitudinal direction LR with respect to the distal end part 183 of the joint cover part 181.

The joint cover portion 181 is a substantially conical cylindrical member made of an elastic material such as rubber. Note that the joint cover portion 181 only needs to be formed of an elastically deformable material. The joint cover portion 181 is closed by a distal end portion 183 on the side that contacts the case 11, and is open on the proximal end side.

The joint cover portion 181 is formed to taper toward the distal end portion 183 along the axis x4 along the insertion direction In of the joint portion 182. The tip portion 183 is curved into a dome shape. A hole 184 is formed approximately at the center of the tip portion 183 . The joint cover portion 181 has an annular groove 185. The groove 185 is formed in a concave shape on the inner surface at the proximal end.

The joint portion 182 is a conical columnar member made of, for example, rubber, synthetic resin, or the like. The joint portion 182 has a columnar portion 186 and a bottom portion 187. The joint portion 182 is inserted into the columnar portion 186 from the base end side of the joint cover portion 181 . In the insertion direction In, the tip of the columnar portion 186 is curved into a dome shape.

The columnar portion 186 has a through hole 188 and a protruding portion 189 . The through hole 188 extends from the tip of the columnar portion 186 to the bottom portion 187 along the axis x4. Note that the columnar portion 186 also penetrates in a direction intersecting the axis x4. The protruding portion 189 is formed to be convex toward the outside. The protruding portion 189 extends along the circumferential direction on the bottom portion 187 side. The protruding portion 189 engages with the groove 185 of the joint cover portion 181.

The bottom portion 187 is formed integrally with the columnar portion 186 on the opposite side from the tip of the columnar portion 186 . The bottom portion 187 is circular in plan view and has a larger diameter than the columnar portion 186. The outer diameter of the bottom portion 187 is approximately the same as the outer diameter of the base end side of the joint cover portion 181.

The hole 184 of the joint cover part and the through hole 188 of the joint part 182 are concentric and aligned with each other when the joint part 182 is inserted into the joint cover part 181. The winding portion 161 of the operating cord 16 is inserted through the hole 184 and the upper through hole 188. The winding portion 161 has a knot at its end within the regulating member 18, and this knot prevents it from coming off through the hole 184 and the upper through hole 188 (see FIG. 12).

In a state where the joint cover part 181 and the joint part 182 are engaged with each other, the operating part 162 of the operating cord 16 is inserted through the through hole 188 in the bottom part 187 of the joint part 182. The operating portion 162 has a knot at its end within the regulating member 18, and this knot prevents it from coming off from the through hole 188.

A clearance C is provided between the tip portion 183 of the joint cover portion 181 and the columnar portion 186 of the joint portion 182 on the axis x4 passing through the centers of the joint cover portion 181 and the joint portion 182 in a state where the joint cover portion 181 and the joint portion 182 are engaged with each other. It is being The clearance C is reduced by the deformation of the joint cover portion 181.

The axis x4 of the regulating member 18 is inclined toward the lower side D in the longitudinal direction LR when the distal end portion 183 of the joint cover portion 181 is in contact with the cord guide member 40. The bottom portion 187 of the joint portion 182 is located on the cover 116 side (right side R) with respect to the tip portion 183 of the joint cover portion 181. In other words, the position where the operating part 162 of the operating cord 16 hangs from the regulating member 18 is on the opposite side of the head rail 101 from the position where the winding part 161 of the operating cord 16 advances from the cord guide member 40 of the case 11. (right side R). Although the regulating member 18 is formed in a cylindrical shape, it is not limited to this, and may be formed in a rectangular tube shape.

FIG. 14 is a diagram for explaining the configuration of the cord pulley, in which (a) is a perspective view of the cord pulley viewed from the right side, and (b) is a perspective view of the cord pulley viewed from the left side. The cord pulleys 21 and 31 are rotatably supported between inner plates 80 and 90, which will be described later. One end of the operating cord 16 is fixed to the cord pulley 21. One end of the operating cord 17 is fixed to the cord pulley 31. The operating cords 16 and 17 are wound around the outer peripheral surfaces of the cord pulleys 21 and 31. The operating cords 16 and 17 are wound around the outer peripheral surfaces of the cord pulleys 21 and 31 in predetermined ranges (winding ranges) 211 and 311 along the rotational axes x1 and x2.

The guide holes 41, 51 through which the cord guide members 40, 50 guide the operating cords 16, 17 in and out are located at positions overlapping the winding ranges 211, 311 of the cord pulleys 21, 31 in the longitudinal direction LR (see FIG. 6). . The cord pulley 21 is located on the lower side D with respect to the cord pulley 31 in the up-down direction UD. The cord pulley 31 is located above the cord pulley 21 in the vertical direction UD. The cord pulleys 21 and 31 have cylindrical winding portions 212 and 312 and cylindrical locking portions 213 and 313. Note that since the cord pulleys 21 and 31 have the same configuration, the configuration will be explained below using the cord pulley 21 as an example.

The winding portion 212 has a diameter larger than the diameter of the locking portion 213. The cord pulley 21 is partially rotatably supported by an inner plate 80 (described later) at the winding portion 212 along the rotation axis x1.

One end of the winding portion 212 to which a spiral spring 23 (described later) is attached is closed by a locking portion 213, and the other end is open. The winding section 212 has two collar sections 214. The collar portions 214 are provided at intervals of the winding range 211 along the axis x1. The collar portion 214 annularly protrudes radially outward from the outer circumferential surface of the winding portion 212 .

The winding portion 212 has two convex portions 215 as engaging portions (first engaging portions) on the inner circumferential surface. The two convex portions 215 are provided at positions facing each other in the radial direction. The convex portion 215 extends along the axis x1 from the inner circumferential surface and projects toward the axis x1. The cord pulley 21 engages with a one-way clutch device 22, which will be described later, at the convex portion 215.

The locking portion 213 engages with the mainspring spring 23. The locking portion 213 is formed in a cylindrical shape. A slit 216 is formed at the tip of the locking portion 213 . The slit 216 extends along the radial direction and the extending direction of the locking portion 213.

The inner plate 80 has two accommodation holes 81 and 82 arranged in the vertical direction UD. The accommodation hole 81 is located on the lower side D with respect to the accommodation hole 82 in the up-down direction UD. The accommodation hole 81 rotatably supports the cord pulley 21 in the winding section 212 . The accommodation hole 82 is located above the accommodation hole 81 in the vertical direction UD. The accommodation hole 82 rotatably supports the cord pulley 31 in the winding section.

The operating device 1 further includes a roller 85 between the inner plates 80 and 90. The roller 85 guides the operating cord 17 wound around the cord pulley 31 for raising and lowering the rear curtain 13 from the inside of the case 11 to the outside. That is, the operating cord 17 passes between the roller 85 and the rear wall 113 of the case 11.

The roller 85 is provided between the cord pulleys 21 and 31 arranged one above the other in the up-down direction UD. The roller 85 is supported by the inner plates 80 and 90 so as to be rotatable about an axis extending along the longitudinal direction LR. The roller 85 is provided on the rear side B in the front-rear direction FB. The position where the roller 85 is provided in the front-rear direction FB is such that the extending direction of the operating cord 17 hanging down from the cord pulley 31 is directed toward the rear wall 113 side. As a result, the operating cord 17 passes outside the operating cord 16 wound around the cord pulley 21 at the lower side D of the roller 85 (see FIG. 11).

The mainspring springs 23 and 33 are formed of, for example, a band-shaped elastic member made of metal. The mainspring springs 23 and 33 are formed in a spiral shape. FIG. 15 is a diagram showing the operating device with the cover removed. The mainspring springs 23 and 33 are provided on the cover 116 side of the case 11. The mainspring springs 23 and 33 are housed in the inner plate 90.

The mainspring springs 23 and 33 are engaged with rotatable cord pulleys 21 and 31 so as to be able to wind up and unwind the operation cords 16 and 17. The mainspring springs 23 and 33 bias the cord pulleys 21 and 31 so that the operating cords 16 and 17 are wound around the cord pulleys 21 and 31, respectively.

The mainspring springs 23, 33 each have two engaging portions 231, 232, 331, 332. The engaging portions 231, 232, 331, 332 are provided at each end of the spiral springs 23, 33 in the circumferential direction. The engaging portions 231, 331 are formed at the outer ends of the mainspring springs 23, 33 in the radial direction. The engaging portions 231, 331 are portions that are folded back outward in the winding direction. The engaging portions 232, 332 are formed at the inner ends of the mainspring springs 23, 33 in the radial direction. The engaging portions 232, 332 are portions that are folded back inward in the winding direction.

The inner plate 90 has two accommodating parts 91 and 92 arranged vertically in the vertical direction UD. The accommodating part 91 is located on the lower side D with respect to the accommodating part 92 in the up-down direction UD. The accommodating portion 91 accommodates the mainspring spring 23. The accommodating part 92 is located above the accommodating part 91 in the vertical direction UD. The accommodating portion 92 accommodates the mainspring spring 33.

The housing portions 91 and 92 are defined by wall portions 911 and 921 that protrude from the flat plate portion of the inner plate 90 toward the cover 116. Slits 912 and 922 are formed in the wall portions 911 and 921, respectively. The slit 912 of the wall portion 911 is formed on the lower side D of the wall portion 911 of the accommodating portion 91 in the vertical direction UD. The slit 922 of the wall portion 921 is formed on the upper side U of the wall portion 921 of the accommodating portion 92 in the vertical direction UD.

The engaging portions 231, 331 of the mainspring springs 23, 33 are engaged with the wall portions 911, 921 in the slits 912, 922 of the housing portions 91, 92, respectively. The engaging portion 232 of the mainspring spring 23 is engaged with the cord pulley 21 at the slit 216 of the cord pulley 21 . The engaging portion 332 of the mainspring spring 33 is locked to the cord pulley 31 at a slit in the cord pulley 31.

The one-way clutch devices 22, 32 are provided between the cord pulleys 21, 31 and the clutch units 60, 70 along the axes x1, x2, respectively, and transmit rotational force to the clutch units 60, 70. The one-way clutch devices 22, 32 are provided on the side of the clutch units 60, 70 with respect to the cord pulleys 21, 31 in the longitudinal direction LR (FIG. 6). The one-way clutch devices 22 and 32 are inserted into the cord pulleys 21 and 31, respectively, and can rotate together with the cord pulleys 21 and 31.

The one-way clutch device 22 uses the output transmitted from the cord pulley 21 to transmit rotational force only in a predetermined rotational direction to the clutch unit 60 on the downstream side. The one-way clutch device 32 uses the output transmitted from the cord pulley 31 to transmit rotational force only in a predetermined rotational direction to the clutch unit 70 on the downstream side.

The one-way clutch devices 22, 32 include housings 221, 321 and one-way clutches 227, 327 (see FIG. 7). Note that since the housings 221 and 321 have the same configuration, the configuration will be explained below using the housing 221 as an example.

FIG. 16 is a perspective view for explaining the configuration of the housing of the one-way clutch device, (a) is a perspective view of the housing viewed from the right side, and (b) is a perspective view of the housing viewed from the left side. . The housing 221 is formed into a cylindrical shape with one end closed on the cord pulley 21 side. The housing 221 engages with the inner circumferential surface of the cord pulley 21 at its outer circumferential surface. The housing 221 is formed as an insertion member inserted into the cord pulley 21. The housing 221 has three stepped portions 222 to 224 having different outer diameters.

In the direction of insertion into the cord pulley 21, a stepped portion 222, a stepped portion 223, and a stepped portion 224 are provided in this order. The outer diameter of the housing 221 increases in the order of the stepped portion 222, the stepped portion 223, and the stepped portion 224.

The stepped portion 223 has two convex portions 225 on its outer peripheral surface as engaging portions (second engaging portions). The two convex portions 225 are provided at positions facing each other in the radial direction. The convex portion 225 extends along the axis x1 on the outer circumferential surface and protrudes from the outer circumferential surface in a direction away from the axis x1. The outer diameter of the convex portion 225 is approximately the same as the outer diameter of the stepped portion 224 . The one-way clutch device 22 engages with the protrusion 215 of the cord pulley 21 in the circumferential direction at the protrusion 225 .

The housing 221 has three protrusions 226 on its inner peripheral surface. The convex portions 226 are provided on the inner peripheral surface of the stepped portion 284 at equal intervals. The convex portion 226 is a portion that extends along the axis x1 on the inner circumferential surface and protrudes semicircularly from the inner circumferential surface toward the axis x1. The convex portion 226 engages with a one-way clutch 227, which will be described later.

The one-way clutches 227, 327 engage with the inner peripheral surfaces of the housings 221, 321 at their outer peripheral surfaces. The one-way clutches 227, 327 cannot rotate relative to the housings 221, 321. The one-way clutches 227, 327 transmit only the rotation of the operating cords 16, 17 in the pulling direction to the lifting shafts 112b, 113b via the clutch units 60, 70. The one-way clutches 227, 327 are press-fitted into the housings 221, 321 so that they can rotate integrally with the housings 221, 321.

The one-way clutches 227, 327 are formed into a disk shape. One-way clutches 227, 327 are housed within housings 221, 321. The one-way clutches 227, 327 have a hole at the center and three recesses on the outer peripheral surface. Drive shafts 611, 711 of clutch units 60, 70, which will be described later, are inserted into the holes of the one-way clutches 227, 327 so as to be relatively unrotatable.

The recesses extend along the axes x1 and x2 on the outer peripheral surface, and are provided at equal intervals in the circumferential direction. The recess is a semicircular depression from the outer peripheral surface toward the axes x1 and x2. The one-way clutch 227 is engaged in a concave portion with a convex portion 226 of the housing 221 in a relatively unrotatable manner. The one-way clutch 327 is engaged in a concave portion with a convex portion of the housing 321 so as to be relatively unrotatable.

In a state where the one-way clutch devices 22, 32 are inserted into the cord pulleys 21, 31, the cord pulleys 21, A space SP is provided between the cord pulleys 21, 31 and the one-way clutch devices 22, 32 in the rotational directions R1, R2 to allow the idle rotation of the clutch 31. The cord pulleys 21, 31 rotate the one-way clutch devices 22, 32 by causing the convex portions 215, 315 to come into contact with the convex portions 225, 325 of the one-way clutch devices 22, 32.

FIG. 17 is a perspective view of the clutch unit of the operating device. FIG. 18 is an exploded perspective view of the clutch unit. The clutch units 60 , 70 are connected to the case 11 of the pulley operation drive unit 20 , 30 at a side wall 111 on the opposite side from the cover 116 .

The clutch units 60 and 70 are in a transmission state in which the rotational force of the cord pulleys 21 and 31 is transmitted to the downstream lifting shafts 112b and 113b when the operating codes 16 and 17 are operated, and when the operating codes 16 and 17 are not operated, respectively. It is possible to freely switch to a non-transmission state in which the rotational force of the cord pulleys 21, 31 is not transmitted to the downstream lifting shafts 112b, 113b. When the operating cords 16 and 17 are not operated, the regulating members 18 and 19 are in contact with the case 11 of the operating device 1.

The clutch units 60, 70 are connected to one-way clutch devices 22, 32 of the pulley operation drive units 20, 30, respectively. The clutch units 60, 70 include transmitting side rotating parts 61, 71, receiving side rotating parts 62, 72, cam drums 63, 73, clutch cases 64, 74, and clutch balls 65, 75.

The transmission side rotating parts 61 and 71 are connected to pulley operation drive units 20 and 30, respectively. The transmission side rotating parts 61, 71 have drive shafts 611, 711, clutch spring cylinders 612, 712, clutch springs 613, 713, and transmission side engagement discs 614, 714.

The drive shafts 611, 711 are connected to one-way clutch devices 22, 32 of the pulley operation drive units 20, 30. The drive shaft 611 rotates in a first rotation direction R1 (for example, counterclockwise when viewed from the pulley operation drive unit 20, 30 side) by pulling the operation cord 16 in one direction. Further, the drive shaft 711 rotates in a second rotation direction R2 (for example, clockwise when viewed from the pulley operation drive units 20 and 30) by pulling the operation cord 17 in one direction.

The clutch spring tubes 612, 712 are spline connected to the drive shafts 611, 711. The clutch spring cylinders 612, 712 rotate together with the drive shafts 611, 611, and are movable relative to the drive shafts 611, 711 along the drive shafts 611, 711 on the axes x1, x2.

Cylindrical clutch springs 613, 713 are wound around the outer peripheral surfaces of the clutch spring cylinders 612, 712. The clutch springs 613, 713 tighten the outer circumferential surfaces of the clutch spring tubes 612, 712 in a no-load state due to their elasticity. Therefore, the clutch springs 613, 713 rotate together when the clutch spring tubes 612, 712 rotate. The transmission mesh discs 614, 714 are provided at the ends of the clutch spring tubes 612, 712 on the opposite side from the pulley operation drive units 20, 30 in the axes x1, x2.

The drive shafts 611, 711 are inserted into the cam drums 63, 73 together with the clutch spring cylinders 612, 712 from the side of the pulley operation drive units 20, 30. The drive shafts 611, 711 are rotatably housed in the cam drums 63, 73. The cam drums 63, 73 have engaging portions 63a, 73a. The engaging portions 63a, 73a are formed in the shape of notches at the ends of the cam drums 63, 73 on the side of the pulley operation drive units 20, 30. The clutch springs 613, 713 are engaged with the engaging portions 63a, 73a at the ends opposite to the transmission side rotating portions 61, 71.

The transmitted rotating parts 62 and 72 include driven shafts 621 and 721, and transmitted mesh discs 622 and 722, respectively. The transmission side engagement discs 622, 722 are fixed to the ends of the driven shafts 621, 721 on the drive shafts 611, 711 side. The drive shafts 611, 711 are rotatably housed within the clutch cases 64, 74 and the cam drums 63, 73 at the ends opposite to the transmission mesh discs 622, 722. The ends of the driven shafts 621, 721 opposite to the pulley operation drive units 20, 30 are connected to the lifting shafts 112b, 113b via connectors 623, 723, and rotate together with the lifting shafts 112b, 113b. .

The cam drums 63 and 73 are rotatable together with the clutch spring cylinders 612 and 712 via clutch springs 613 and 713. Further, the cam drums 63, 73 are rotatable relative to the clutch spring cylinders 612, 712 when the clutch springs 613, 713 are loosened. Further, the cam drums 63, 73 are movable along the axes x1, x2 relative to the drive shafts 611, 711.

Clutch cases 64 and 74 are fixed to head rail 101. The cam drums 63, 73 are open toward the pulley operation drive units 20, 30, and are closed by cam covers 63b, 73b. The cam drums 63, 73 are rotatably supported within the clutch cases 64, 74 together with the drive shafts 611, 711 and the clutch spring tubes 612, 712.

Cam grooves 630, 730 are formed endlessly around the circumference on the outer peripheral surfaces of the cam drums 63, 73. Holding grooves 641, 741 are formed on the inner surfaces of the clutch cases 64, 74 (see FIG. 6). The clutch balls 65, 75 are rotatably housed in the cam grooves 630, 730 and the holding grooves 641, 741.

FIG. 19 is a developed view for explaining the configuration of the clutch unit cam drum, and shows the clutch unit in a released state. Note that since the cam drums 63 and 73 have the same configuration, the configuration will be explained below using the cam drum 63 as an example. The cam groove 630 has, as a main groove, a winding groove 631 (see the path indicated by a chain line) that is continuously formed in an endless manner in the circumferential direction. The winding groove 631 has a meshing part 632, a stop part 633, and a holding part 634.

The engaging portion 632 is curved toward the proximal end (to the right in the figure). The meshing portion 632 performs a transmission operation of the clutch units 60, 70 when the clutch balls 65, 75 are moved and positioned here relative to the cam drum 63.

The stop portion 633 is curved in a convex manner in a direction opposite to the first rotation direction (winding direction) R1 of the cam drum 63. When the clutch ball 65 is relatively moved and positioned there, the stop portion 633 restricts the rotation of the cam drum 63 in the first rotation direction R1.

The holding portion 634 is curved in a convex shape in the first rotation direction R1 of the cam drum 63. When the holding part 634 stops pulling the operating cord 16 in one direction and releases it, the clutch ball 65 enters the holding part 634 and rotates the cam drum 63 in the second rotation direction R2 based on the drop of the front curtain 12's own weight. Since the front curtain 12 is restrained from rotating under its own weight, the front curtain 12 does not fall under its own weight.

The cam groove 630 has a main release groove 635 and a sub release groove 636. The main release groove 635 branches from the winding groove 631 near the holding portion 634. The main release groove 635 has an inclined part 637 toward the tip (0°) side, and a main release part 638 that is an abutment at the end. When the clutch ball 65 is relatively moved to the main release portion 638 and positioned there, the clutch unit 60 performs a transmission release operation to be described later.

The sub-release groove 636 branches from the winding groove 631 near the engaging portion 632. The sub-release groove 636 has a sloping part toward the proximal end (360°) and a sub-release part 639 that abuts at the tip thereof. When the clutch ball 65 is relatively moved and positioned at the sub release portion 639, the clutch unit 60 performs a transmission release operation.

When the cam drum 63 rotates with the rotation of the drive shaft 611, the clutch ball 65 moves within the holding groove 641 along the axis x1 within a length l along the axis x1 of the holding groove 641, and moves along the axis x1 within the holding groove 641. 630 relative to the cam drum 63.

The length l of the holding groove 641 along the axis x1 is the length l of the release portion (main release portion 638, sub release portion) located on the tip (0°) side of the engagement portion 632 located on the proximal end (360°) side of the cam groove 630. The distance d from the release portion 639) in the axis x1 direction is smaller than the distance d (d>l).

When the clutch ball 65 moves to one end and the other end of the holding groove 641, it is restrained there and cannot move any further. Thereby, the cam drum 63 moves along the axis x1 relative to the restrained clutch ball 65. Thereby, the clutch ball 65 can move to the main release part 638 and the engagement part 632 and be located there.

Next, the operation of the clutch units 60 and 70 in the solar radiation shielding device 100 will be explained using FIGS. 19 to 22. The operations of the clutch units 60 and 70 are the same except for the rotational directions, so the operations will be described below using the clutch unit 60 as an example. FIG. 20 shows the engaged state of the clutch unit. FIG. 21 shows a state in which the rotation of the clutch unit is stopped (clutch spring slipping state). FIG. 22 shows a holding state in which the position of the front curtain is held.

First, the operation of the clutch unit 60 when raising the front curtain 12 in the solar radiation shielding device 100 will be described.

For example, before the start of operation, the clutch unit 60 is in a released state. That is, before the start of operation, as shown in FIG. 19, the transmission-side engagement disc 614 of the transmission-side rotation section 61 and the transmission-side engagement disc 622 of the transmission-side rotation section 62 are separated from each other and are disengaged. It is in a state of The operation of lifting the front curtain 12 by pulling the operation cord 16 in one direction from this state (the winding operation of winding up the lifting cord 14) will be described.

When the operating cord 16 is pulled in one direction and operated, the cord pulley 21 rotates in the first rotation direction R1. This rotation is transmitted to the drive shaft 611 of the transmission side rotating section 61 in the clutch unit 60 via the one-way clutch device 22 . The drive shaft 611 rotates in a first rotation direction R1. When the drive shaft 611 rotates in the first rotation direction R1, the cam drum 63 rotates in the first rotation direction R1 via one end of the clutch spring 613 wound around the clutch spring cylinder 612.

As shown in FIG. 19, the clutch ball 65 that was stopped at the main release part 638 of the main release groove 635 passes through the inclined part 637 from the main release part 638 of the main release groove 635 relative to the cam drum 63. Then, it moves from the branch part B to the winding groove 631, and moves inside the holding groove 641 toward the proximal end (rightward in FIG. 19).

When the clutch ball 65 reaches the base end (the right end in FIG. 19) of the holding groove 641, further movement along the axis x1 is restricted, so the cam drum 63 moves toward the tip side along the axis x1. .

When the cam drum 63 moves toward the distal end, the transmission-side engagement disc 614 of the clutch spring cylinder 612, which moves along the axis x1 together with the cam drum 63, also moves toward the distal end along the axis x1, and as shown in FIG. It meshes with the transmission side meshing disc 622. In this state, the clutch unit 60 is in an engaged state.

The rotation of the drive shaft 611 in the first rotation direction R1 is transmitted to the driven shaft 621 via the transmission side engagement plate 614 and the transmitted side engagement plate 622, and the front curtain 12 is raised (rolled up) by the lifting shaft 112b. The operation begins.

Further, when the operation cord 16 is continued to be operated, the cam drum 63 continues to rotate in the first rotation direction R1, and the clutch ball 65 reaches the stop portion 633 as shown in FIG. 21. Then, since the clutch ball 65 is restrained by the stop portion 633, the rotation of the cam drum 63 is restrained and stopped.

In this state, when the operating cord 16 is continued to be operated and the drive shaft 611 and the clutch spring cylinder 612 are rotated in the first rotation direction R1, one end of the clutch spring 613 is locked to the cam drum 63, so the cam drum 63, the rotation of the clutch spring 613 is stopped, and the tightening of the clutch spring tube 612 by the clutch spring 613 is loosened.

Therefore, when the operation code 16 is operated to continue rotating the drive shaft 611, the cam drum 63 stops rotating, but the clutch spring cylinder 612 continues to rotate while sliding on the clutch spring 613, and the driven shaft 621 continues to rotate.

After raising (winding up) the front curtain 12 to a desired height, if you stop pulling the operating cord 16 in one direction and stop the operation, the lifting shaft 112b will move in the winding direction due to the weight of the front curtain 12. It rotates in the opposite direction, that is, in the second rotation direction R2. The cam drum 63 further rotates in the second rotation direction R2 via the driven shaft 621, the transmission side mesh disc 622, the transmission side mesh disc 614, the clutch spring cylinder 612, and the clutch spring 613.

This rotation causes the clutch ball 65 to enter the holding portion 634, as shown in FIG. 22, and the rotation of the cam drum 63 in the second rotation direction R2 due to the fall of the front curtain 12 due to its own weight is stopped. Thereby, the front curtain 12 can be maintained at a desired height position.

Next, when lowering the front curtain 12 in the rolled-up state, when the operating cord 16 is slightly pulled in the same direction as when raising it, the clutch ball 65 in the clutch unit 60 is moved to the holding part 634 shown in FIG. From there, it advances along the winding groove 631 and moves relative to the cam drum 63 to a branch part B with the main release groove 635 or a position beyond the branch part B.

Then, when the operation is stopped by stopping pulling the operation cord 16 in one direction, the lifting shaft 112b rotates in the second rotation direction R2 due to the weight of the front curtain 12, and the driven shaft 621 and the transmission side engagement plate 622, the cam drum 63 is rotated in the second rotation direction R2 via the transmission side meshing disc 614, the clutch spring cylinder 612, and the clutch spring 613.

The clutch ball 65 enters the main release groove 635 from the branch part B and tries to move from the inclined part 637 to the main release part 638 relative to the cam drum 63, but at the tip of the holding groove 641 it moves toward the axis x2. Since movement along the cam drum 63 is restricted, the cam drum 63 moves toward the proximal end.

As shown in FIG. 19, the transmission side meshing disc 614 and the transmitted side meshing disc 622 are separated from each other, and the meshing is released. Then, the transmission-side engagement plate 622, the driven shaft 621, and the lifting shaft 112b become freely rotatable, and the front curtain 12 descends under its own weight to be in a closed state.

Since the meshing between the transmission side meshing disc 614 and the transmitted side meshing disc 622 is released, the rotation of the driven shaft 621 in the second rotation direction R2 due to the drop of the front blade 12 due to its own weight is caused by the rotation of the driving shaft 611 and the clutch spring cylinder 612. and is not transmitted to the cam drum 63.

In addition, in the raising (winding operation), as described above, the transmission-side engagement disc 614 of the transmission-side rotating section 61 and the transmission-side engagement disc 622 of the transmitted-side rotation section 62 are disengaged (see FIG. 19). Then, pull the operating cord 16 in one direction to bring it into engagement as shown in FIG. 20, and wind up the front curtain 12.

When the operation of the operating cord 16 is stopped immediately after the meshing state is established in this way, the cam drum 63 rotates in the first rotation direction R1, and after passing the clutch ball 65 and the meshing portion 632, the cam drum 63 rotates in the first rotation direction R1. It enters the release groove 636 and stops at the sub release portion 639 thereof.

As a result, similarly to the case where the clutch ball 65 enters the main release groove 635 (see FIG. 19), the transmission-side engagement disc 614 of the transmission-side rotating section 61 and the transmitted-side engagement disc 622 of the transmitted-side rotation section 62 The mesh is released.

According to the operating device 1 as described above, the guide member 40 that guides the operating cord 16 for raising and lowering the front curtain 12 is a guide member that guides the operating cord 17 for raising and lowering the rear curtain 13 in the operating device 1. It is provided on the front side F with respect to 50, that is, on the side of the front curtain 12. Similarly, the guide member 50 that guides the operation cord 17 for raising and lowering the rear curtain 13 is on the rear side B, That is, it is provided on the rear curtain 13 side.

Therefore, the operator can easily visually grasp the correspondence between the front curtain 12 and the rear curtain 13 and the operation codes 16 and 17 for raising and lowering the front curtain 12 and the rear curtain 13. , it is possible to prevent the operation target from being mistaken.

Further, since the operating device 1 includes the roller 85, the operating cord 17 hanging from the pulley operating drive unit 30 disposed on the upper side in the vertical direction UD is connected to the pulley operating drive unit 20 disposed on the lower side. It is possible to effectively suppress interference with the wound operation cord 16.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the first embodiment described above, and includes all aspects included in the concept of the present invention and the scope of the claims. . Moreover, each structure may be selectively combined as appropriate so as to achieve at least some of the problems and effects described above. Further, for example, the shape, material, arrangement, size, etc. of each component in the above embodiments may be changed as appropriate depending on the specific usage mode of the present invention. For example, in the embodiment described above, the pulley operation drive unit 20 disposed on the lower side is for operating the front curtain 12, and the pulley operation drive unit 30 disposed on the upper side is for operating the rear curtain 13. However, the pulley operation drive unit 20 disposed on the lower side may be used for operating the rear curtain 13, and the pulley operation drive unit 30 disposed on the upper side may be used for operating the front curtain 12.

Further, in the above embodiment, the pulley operation drive units 20 and 30 are arranged side by side in the up-down direction UD, but they may be arranged side-by-side in the front-rear direction FB.

<Second embodiment>
Below, a solar radiation shielding device 100A according to a second embodiment will be described. Below, parts that are different from the operating device 1 and the solar radiation shielding device 100A according to the first embodiment will be mainly explained. FIG. 23 is a front view of the solar radiation shielding device according to the second embodiment. FIG. 24 is a side view of the solar radiation shielding device shown in FIG. 23.

A solar radiation shielding device 100A according to the second embodiment includes a housing-shaped head rail 101A, two shielding members 12A and 13A, lifting cords 14A and 15A, an intermediate rail 120A, a bottom rail 130A, and an operation An operating device 1A having cords 16A and 17A is provided.

The shielding materials in the solar radiation shielding device 100A according to the second embodiment include an upper curtain (first shielding material) 12A and a lower curtain (second shielding material) 13A that are vertically connected to each other in the vertical direction UD of 12A and 13A. It is. The code guide member 40A for the operation cord 16A used for raising and lowering the upper curtain 12A, and the code guide member 50A for the operation cord 17A used for raising and lowering the lower curtain 13A, each move in the raising and lowering direction UD. are provided at different height positions.

In the solar radiation shielding device 100A according to the second embodiment, a code guide member 40A for the operation cord 16A is provided for raising and lowering the upper curtain 12A, and an operation cord is provided for raising and lowering the lower curtain 13A. The cord guide members 50A for the cords 17A are provided at different height positions in the lifting direction UD. The cord guide member 40A is provided above the cord guide member 50A.

The head rail 101A is formed in the shape of a long housing with a housing space inside. The head rail 101A has a bracket 102A. The head rail 101A is attached to an attachment target such as a window frame or a wall around the window via a bracket 102A. An operating device 1A, which will be described later, is attached to one end of the head rail 101A in the longitudinal direction L (right side R in FIG. 23). Note that the head rail 101A is not limited to a housing shape, and may have an I-shaped cross section along the width direction FB. Moreover, the operating device 1A can also be attached inside the head rail 101A.

A first drive device (not shown) that moves up and down the intermediate rail 120A and a second drive device (not shown) that moves up and down the bottom rail 130A are provided in the head rail 101A. One end of a lifting cord 14A that lifts and lowers the intermediate rail 120A is fixed to the first drive device so that it can be wound up and unwound. The other end of the lifting cord 14A is fixed to the intermediate rail 120A. One end of a lifting cord 15A that raises and lowers the bottom rail 130A is fixed to the second drive device so that it can be wound up and unwound. The other end of the lifting cord 15A is fixed to the bottom rail 130A. The two lifting cords 14A and the two lifting cords 15A are provided at predetermined intervals along the longitudinal direction LR.

In this embodiment, the lifting cords 14A and 15A are suspended from two places, but depending on the length of the solar radiation shielding device 100A, the number of winding drums installed, etc. It may be hanging down.

The intermediate rail 120A is formed to be long in the longitudinal direction LR. The other ends of the two lifting cords 14A are fixed to the intermediate rail 120A, and the intermediate rail 120A is suspended from the head rail 101A. The bottom rail 130A is formed long in the longitudinal direction LR. The bottom rail 130A has the other ends of two lifting cords 15A fixed thereto, and is suspended from the head rail 101A.

The upper curtain 12A has an upper end connected to the lower surface of the head rail 101A, and a lower end connected to the upper surface of the intermediate rail 120A. The upper curtain 12A is formed in a pleated shape that can be folded in the vertical direction UD, and two lifting cords 14A are inserted in the vertical direction UD.

The lower curtain 13A has an upper end connected to the lower surface of the intermediate rail 120A, and a lower end connected to the upper surface of the bottom rail 130A. The lower curtain 13A is formed in a pleated shape that can be folded in the vertical direction UD, and two lifting cords 15A are inserted in the vertical direction UD.

One end of the operation code 16A acts on a first drive device that raises and lowers the upper curtain 12A. One end of the operation code 17A acts on a second drive device that raises and lowers the lower curtain 13A. That is, by pulling the operating cord 16A, the intermediate rail 120A moves up and down and the upper curtain 12A is folded, and by pulling the operating cord 17A, the bottom rail 130A moves up and down and the lower curtain 13A is folded.

In the operating device 1A of the solar radiation shielding device 100A, the plurality of guide parts are upper cords provided vertically at intervals in the vertical direction UD of the upper curtain 12A and the lower curtain 13A, which are vertically connected to each other in the vertical direction UD. They are a guide member 40A and a lower cord guide member 50A. The code guide member 40A guides the operation code 16A for the upper curtain 12A, and the code guide member 50A guides the operation code 17A for the lower curtain 13A. The configuration of the operating device 1A will be described below.

The operating device 1A is attached to the right-hand R end of the head rail 101A, for example. The operating device 1A individually raises and lowers the upper curtain 12A and the lower curtain 13A in accordance with the operation of operating cords 16A and 17A hanging from the operating device 1A. The operating device 1A includes a pulley operation drive unit (not shown) and a clutch unit for raising and lowering the upper curtain 12A, and a pulley operation drive unit and a clutch unit for raising and lowering the lower curtain 13A. Note that the configurations of the pulley operation drive unit and clutch unit in the second embodiment are the same as the configurations of the pulley operation drive units 20, 30 and clutch units 60, 70 in the first embodiment.

Note that the configuration of the operating device 1A in the second embodiment is the same as the configuration of the operating device 1 in the first embodiment. The difference between the operating device 1 according to the first embodiment and the operating device 1A according to the second embodiment is that the cord guide members 40A, 50A of the operating cords 16A, 17A are connected to the case 11A of the operating device 1A. It's the location.

The cord guide members 40A and 50A are each provided on the front wall side of the indoor side (front side F) of the case 11A. The cord guide member 40A is located on the upper side U in the up-down direction UD with respect to the cord guide member 50A, and is located on the front side F in the front-back direction FB. The front wall of the case 11A has a projecting portion 103A projecting toward the front side F at the end of the upper side U. The cord guide member 40A is located on a surface facing the lower side D of the overhang portion 103A. The cord guide member 50A is located at a transition portion between the front wall and the lower wall of the case 11A, and is located on a surface facing the lower side D.

According to the operating device 1A as described above, the code guide member 40A that guides the operating code 16A for raising and lowering the upper curtain 12A is the code guide member 40A that guides the operating code 17A for raising and lowering the lower curtain 13A in the operating device 1A. It is located on the upper side U of the case 11A with respect to the guide member 50A.

Therefore, the operator can easily visually grasp the correspondence between the upper curtain 12A and the lower curtain 13A and the operation codes 16A and 17A for raising and lowering the upper curtain 12A and the lower curtain 13A. , it is possible to prevent the operation target from being mistaken.

According to the solar radiation shielding device 100A according to the second embodiment, the same effects as the solar radiation shielding device 100 according to the first embodiment can be achieved.

1, 1A, 1B operating device, 11 case, 12 front curtain (shielding material), 12A upper curtain (shielding material), 13 shielding material (rear curtain), 13A lower curtain (shielding material), 16, 16A, 17, 17A Operation code, 20, 30 Pulley operation drive unit, 21, 31 Code pulley, 22, 32 One-way clutch device, 40, 40A, 50, 50A Cord guide member, 60, 70 Clutch unit, 100, 100A Solar radiation shielding device

Claims (7)

head rail and
a plurality of shielding members supported along the longitudinal direction of the headrail so as to be movable up and down with respect to the headrail;
a plurality of operation codes provided for raising and lowering each of the plurality of shielding materials;
an operating device that is attached to the head rail and has a plurality of cord pulleys that can respectively wind up and unwind the plurality of operating cords;
Equipped with
The operating device has a plurality of guide parts that guide each of the plurality of operation codes in and out,
The solar radiation shielding device, wherein the positions of the plurality of guide parts on the operating device are the same as the positional relationship between the plurality of shielding materials. The plurality of shielding materials are a first shielding material and a second shielding material supported by the head rail at a predetermined interval from each other in a direction that intersects the vertical direction and intersects the longitudinal direction. can be,
A first guide portion for an operation cord used for raising and lowering the first shielding member is located on the side of the first shielding member in the lateral direction,
2. A second guide portion for an operation cord used for raising and lowering the second shielding member is located on a side of the second shielding member in the lateral direction. Solar shading device. The plurality of shielding materials are a first shielding material on the upper side and a second shielding material on the lower side, which are vertically connected to each other in the ascending and descending direction of the shielding materials,
A first guide part for an operation cord used for raising and lowering the first shielding member and a second guide part for an operation cord used for raising and lowering the second shielding member are respectively They are installed at different heights in the lifting direction.
The solar radiation shielding device according to claim 1, wherein the first guide part is provided above the second guide part. It is used to raise and lower multiple shielding materials that are supported so that they can be raised and lowered on the head rail of the solar shading device.
attached to the headrail;
a plurality of cord pulleys each capable of winding up and unwinding a plurality of operation cords used for raising and lowering each of the plurality of shielding materials;
a case that accommodates the cord pulley;
Equipped with
The case has a plurality of guide parts that guide each of the plurality of operation codes in and out,
The operating device for a solar radiation shielding device, wherein the positions of the plurality of guide parts in the case are the same as the positional relationship between the plurality of shielding members. The plurality of guide parts include a first guide part and a second guide part, which are provided at a predetermined interval from each other in a transverse direction that intersects the vertical direction of the shielding material and intersects the longitudinal direction of the head rail. It is an information department,
a first guide section that guides an operation code for a shielding member supported on a side of the first guide section in the head rail;
The operating device for a solar radiation shielding device according to claim 4, wherein the second guide section guides an operation code for a shielding member supported on the side of the second guide section in the head rail. The plurality of cord pulleys rotate in mutually different directions during the lifting operation, and are arranged above and below in the lifting direction,
A roller rotatably supported within the case guides the operating cord corresponding to the upper cord pulley from the inside of the case to the outside between a lower cord pulley and an upper cord pulley. The operating device for a solar radiation shielding device according to claim 5, further comprising: an operating device for a solar radiation shielding device according to claim 5; The plurality of guide parts are an upper first guide part and a lower second guide part, which are vertically spaced apart in the vertical direction of the shielding material and are vertically connected to each other in the vertical direction,
The first guide part guides the operation code to the upper shielding material,
The operating device for a solar radiation shielding device according to claim 4, wherein the second guide section guides the operating code to a lower shielding member.

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