JP2022025709A - Sunlight shielding device and operating device for sunlight shielding device - Google Patents

Abstract

To provide a technique to reliably lower a shielding material even when the shielding material is folded up.SOLUTION: An operating device comprises cord pulleys 21, 31 at which one ends of cords 16, 17 for the lifting-and-lowering operation of a shielding material are fixed, a clutch unit which selectively switches the rotative force of the cord pulleys 21, 31 between in a transmission state and in a non-transmission state and which regulates the rotation of the lifting-and-lowering shaft in the lowering direction of the shielding material, and one-way clutch devices 22, 32 provided between the cord pulleys 21, 31 and the clutch unit. The cord pulleys 21, 31 and the one-way clutch devices 22, 32 are able to engage with each other. A space SP, enabling the cord pulleys 21, 31 to run idle against the one-way clutch devices 22, 32 in operating the operation cords 16, 17, is provided in the rotative direction between the cord pulleys 21, 31 and the one-way clutch devices 22, 32.SELECTED DRAWING: Figure 11

Description

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

Conventionally, there is known a solar shielding device that raises and lowers at least one shielding material suspended from a head box (head rail) by a loop-shaped raising and lowering operation cord. For example, there is a twin-type solar shielding device that raises and lowers two shielding materials suspended from a head box. In this solar shielding device, one of the two shielding materials can be switched between raising and lowering by a single loop-shaped raising and lowering operation code, and the raising and lowering operations can be independently performed (see, for example, Patent Document 1). ).

The solar radiation shielding device described in Patent Document 1 has a configuration in which a double shielding material can be independently pulled up by one operation code, and each shielding material can be operated by one of the operation codes. A clutch unit and a stopper unit are provided so that the pulling operation, the descent operation by the own weight, and the self-weight descent prevention operation can be selected.

The clutch unit has a cam drum having a cam groove formed on the peripheral surface. The clutch ball moves in the cam groove according to the rotation of the cam drum to control the raising and lowering of the shielding material. The rotation of the cam drum can be rotated in the forward and reverse directions by pulling the operation cord.

Japanese Patent No. 6523029

By the way, it has been found that when the shielding material is folded up, the meshing state of the clutch unit cannot be released, and it may be difficult to lower the shielding material.

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 for reliably lowering the shielding material even when the shielding material is folded up.

In order to solve the above problems, the solar radiation shielding device according to the present invention can move up and down with respect to the head rail and the elevating shaft rotatably supported in the head rail along the longitudinal direction of the head rail. It comprises at least one supported shielding material and an operating device attached to the headrail and used for raising and lowering the at least one shielding material, wherein the operating device comprises at least one. At least one cord pulley to which one end of at least one cord used for raising and lowering the shielding material is fixed and the at least one cord can be wound and unwound, and the rotational force of the cord pulley is applied to the elevating shaft. At least one clutch unit that selectively switches between a transmission state for transmission and a non-transmission state for non-transmission, and regulates rotation of the elevating shaft in a direction in which the at least one shielding material descends due to its own weight, and the cord. It has at least one one-way clutch device provided between the pulley and the clutch unit, which transmits the cord pulley and the rotation of the cord pulley to the clutch unit, and has the cord pulley and the one-way clutch device. Is engageable in the rotational direction of the cord pulley, and the space that allows the cord pulley to idle with respect to the one-way clutch device when operating the operation codes 16 and 17 is a space between the cord pulley and the one-way clutch in the rotational direction. It is characterized in that it is provided between the device and the device.

Further, in order to solve the above problems, the operating device for the solar radiation shielding device according to the present invention is at least one rotatably supported by an elevating shaft rotatably supported in the head rail of the solar radiation shielding device. At least one cord used for raising and lowering one shielding material and having one end of at least one cord used for raising and lowering the at least one shielding material fixed so that the at least one cord can be wound and unwound. The pulley and the elevating shaft in the direction in which at least one shielding material descends due to its own weight while selectively switching between a transmission state in which the rotational force of the cord pulley is transmitted to the elevating shaft and a non-transmission state in which the rotational force is not transmitted to the elevating shaft. A clutch unit that regulates rotation and at least one one-way clutch device that is provided between the cord pulley and the clutch unit and transmits the rotation of the cord pulley and the cord pulley to the clutch unit are provided. The cord pulley and the one-way clutch device can be engaged with each other in the rotation direction of the cord pulley, and the space that allows the cord pulley to idle with respect to the one-way clutch device during the operation of the operation codes 16 and 17 is the rotation. It is characterized in that it is provided between the cord pulley and the one-way clutch device in the direction.

According to the present invention, even when the shielding material is folded up, the shielding material can be reliably lowered.

It is a front view of the solar radiation shielding device which concerns on 1st Embodiment. It is a side view of the solar radiation shielding device shown in FIG. 1. It is a perspective view of the operation device in a solar radiation shielding device. It is a front view of the operation device. It is a side view which looked at the operation device from the right side. FIG. 3 is a cross-sectional view of the operating device along the VI-VI line in FIG. It is an exploded perspective view of the pulley operation drive unit of an operation device. It is a perspective view for demonstrating the structure of a case, and is the figure which looked at the case diagonally from the upper right. It is a figure for demonstrating the structure of the cord guide member, (a) is a perspective view, (b) is a front view seen from the front side, (c) is a plan view seen from the upper side. 9 is a cross-sectional view taken along the line XX of FIG. 9 (c). 6 is a cross-sectional view taken along the line XI-XI in FIG. It is sectional drawing along the XII-XII line of FIG. It is a figure for demonstrating the structure of the regulation member, (a) is the vertical sectional view of the regulation member along the hanging direction of the operation code, (b) is the enlarged view of the XIII part of (a). It is a figure for demonstrating the structure of the cord pulley, (a) is the perspective view which looked at the cord pulley from the right side, (b) is the perspective view which looked at the cord pulley from the left side. It is a figure which shows the operation device in the state which the cover is removed. It is a perspective view for demonstrating the structure of the housing of the one-way clutch device, (a) is the perspective view which looked at the housing from the right side, (b) is the perspective view which looked at the housing from the left side. It is a perspective view of the clutch unit of an operation device. It is an exploded perspective view of a clutch unit. It is a development drawing for demonstrating the structure of the cam drum of a clutch unit, and shows the disengagement state of a clutch unit. It is a development view of the cam drum which shows the meshing state of a clutch unit. It is a development view of the cam drum which shows the rotation stop state (clutch spring slip state) of a clutch unit. It is a development view of the cam drum which shows the holding state which holds the position of the front curtain. It is a figure for demonstrating the descent operation of the front curtain in the solar radiation shielding device which concerns on a comparative example. It is a figure which shows the relationship between the cord pulley and the housing of a one-way clutch device at the time of operation of an operation code, (a) is a figure which shows the state before operation of an operation code, and (b) is a figure which shows the state at the time of operation of an operation code. It is a figure which shows the state, and (c) is the figure which shows the state at the time of winding the operation cord to a cord pulley. It is a figure which shows the state of the operation code at the time of a clutch release operation, and the state of a clutch ball in a cam drum, (a) is a figure which shows the state of the operation code in FIG. 24 (b), and the state of a clutch ball in a cam groove. (B) is a schematic view showing the state of the operation code in FIG. 24 (c) and the state of the clutch ball in the cam groove. It is a front view of the solar radiation shielding device which concerns on 2nd Embodiment. It is a side view of the solar radiation shielding device shown in FIG. 26. It is a front view of the solar radiation shielding device which concerns on 3rd Embodiment. FIG. 28 is a side view of the solar radiation shielding device shown in FIG. 28.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The solar shielding device according to the present invention is a known solar shielding device and is not limited to a specific solar shielding device, and examples of the shielding material include a tatami mat curtain (Roman shade), a vertical blind, an aluminum blind, a pleated screen, and a shutter. It is applicable to such as. For example, the operating device 1 according to the present invention is applied to the solar shading device 100 shown in FIGS. 1 and 2.

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

For convenience of explanation, the direction in which the head rail 101 of the solar shading 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”. Further, the direction in which the shielding materials (hereinafter, also referred to as "front curtain" and "rear curtain") 12 and 13 hang down or move up and down with respect to the head rail 101 is referred to as a vertical direction (hanging direction, raising and lowering direction) UD. do. Further, in the vertical direction UD, the side of the head rail 101 is referred to as "upper side U", and the side away from the head rail 101 downward is referred to as "lower side D". Further, the direction intersecting the longitudinal direction LR and the vertical direction UD is defined as the lateral direction (front-back direction) FB. Further, in the lateral direction, for example, the indoor side is referred to as "front side F" and the outdoor side is referred to as "rear side B".

The solar radiation shielding device 100 according to the first embodiment includes a housing-shaped head rail 101, two shielding materials 12, 13, an elevating cord 14, 15, and an operation device 1 having operation codes 16, 17. , Equipped with.

The solar shading device 100 according to the first embodiment moves up and down with respect to the head rail 101 and the elevating shafts 112b and 113b rotatably supported in the head rail 101 along the longitudinal direction LR of the head rail 101. It includes a front curtain 12 and a rear curtain 13 that are freely supported, and an operating device 1 that is attached to the head rail 101 and is used for raising and lowering the front curtain 12 and the rear curtain 13. The operation device 1 has two cord pulleys 21, which are fixed at one end of the operation cords 16 and 17 used for raising and lowering the front clutch 12 and the rear clutch 13 and can wind and unwind the operation cords 16 and 17. 31 and the direction in which the front curtain 12 and the rear curtain 13 descend due to their own weight while selectively switching between a transmission state in which the rotational force of the cord pulleys 21 and 31 is transmitted to the elevating shafts 112b and 113b and a non-transmission state in which the rotational force is not transmitted. The two clutch units 60 and 70 that regulate the rotation of the elevating shafts 112b and 113b, and the cord pulleys 21 and 31 and the clutch units 60 and 70 are provided between the two clutch units 60 and 70, and the cord pulleys 21 and 31 and the cord pulley 21. , 31 have two one-way clutch devices 22, 32, which transmit the rotation of the clutch units 60, 70 to the clutch units 60, 70. The cord pulleys 21 and 31 and the one-way clutch devices 22 and 32 can be engaged with each other in the rotation directions R1 and R2 of the cord pulleys 21 and 31, and the cord pulley 21 with respect to the one-way clutch devices 22 and 32 when the operation codes 16 and 17 are operated. , 31 are provided between the cord pulleys 21 and 31 and the one-way clutch devices 22 and 32 in the rotation directions R1 and R2. Hereinafter, the configuration of the solar radiation shielding device 100 will be specifically described.

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

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

The take-up drum 112a is arranged side by side along the longitudinal direction LR of the head rail 101. The take-up drums 112a are connected to each other by an elevating shaft 112b. The elevating shaft 112b is rotatably supported by the head rail 101.

The take-up drum 113a is arranged side by side along the longitudinal direction LR of the head rail 101. Each take-up drum 113a is connected to each other by an elevating shaft 113b. The elevating shaft 113b is rotatably supported by the head rail 101.

In the solar radiation shielding device 100, the number of the winding drums 112a and 113a is not particularly limited.

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

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

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

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

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

In the present embodiment, the elevating cords 14 and 15 are hung from three places, but one place, two places or four depending on the length of the solar shielding device 100, the number of winding drums 112a and 113a installed, and the like. It may be hung from more than one place.

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 as viewed from the front side. FIG. 5 is a side view of the operating device as viewed from the right side.

The operating device 1 is used for raising and lowering the front curtain 12 and the rear curtain 13 rotatably supported by the elevating shafts 112b and 113b rotatably supported in the head rail 101 of the solar radiation shielding device 100. The cord pulleys 21, 31 and the cord pulleys 21, 31 in which one end of the operation cords 16 and 17 used for raising and lowering the curtain 12 and the rear curtain 13 are fixed and the operation cords 16 and 17 can be wound and unwound. While selectively switching between the transmission state in which the rotational force is transmitted to the elevating shafts 112b and 113b and the non-transmission state in which the rotational force is not transmitted, the rotation of the elevating shafts 112b and 113b in the direction in which the front clutch 12 and the rear clutch 13 descend due to their own weight is performed. It is provided between the clutch units 60, 70 to regulate, the cord pulleys 21, 31 and the clutch units 60, 70, and the rotation of the cord pulleys 21, 31 and the cord pulleys 21, 31 is transferred to the clutch units 60, 70. The one-way clutch devices 22 and 32 for transmission are provided. The cord pulleys 21 and 31 and the one-way clutch devices 22 and 32 can be engaged with each other in the rotation directions R1 and R2 of the cord pulleys 21 and 31, and the cord pulley 21 with respect to the one-way clutch devices 22 and 32 when the operation codes 16 and 17 are operated. , 31 are provided between the cord pulleys 21 and 31 and the one-way clutch devices 22 and 32 in the rotation directions R1 and R2.

Further, the cord pulleys 21 and 31 have first engaging portions 215 and 315 that engage with the one-way clutch devices 22 and 32 on the inner peripheral surface. The one-way clutch devices 22 and 32 are at least partially inserted into the cord pulleys 21 and 31, and have at least one second engagement with the first engaging portions 215 and 315 on the outer peripheral surface in the rotation directions R1 and R2. It has 225 and 325 joints. During the operation of the operation cords 16 and 17, the cord pulleys 21 and 31 idle until the first engaging portions 215 and 315 come into contact with the second engaging portions 225 and 325 in the rotation directions R1 and R2.

Further, the first engaging portions 215 and 315 are formed as two first convex portions 215 and 315 protruding inward at positions facing each other in the rotation directions R1 and R2. The second engaging portions 225 and 325 are formed as two second convex portions 225 and 325 protruding outward at positions facing each other in the rotation directions R1 and R2.

In the solar shading device 100, the operating device 1 is attached to, for example, the end of the right side R of the head rail 101. The operation device 1 individually raises and lowers the front curtain 12 and the rear curtain 13 in response to the operation of the operation codes 16 and 17 hanging from the operation device 1. The operation device 1 has two pulley operation drive units 20 and 30, two clutch units 60 and 70, operation codes 16 and 17, and regulation members 18 and 19.

The operation codes 16 and 17 are used to drive the code pulleys 21 and 31 of the operation device 1 described later to operate the raising and lowering of the front curtain 12 and the rear curtain 13. One ends of the operation codes 16 and 17 are fixed to the code pulleys 21 and 31 of the operation device 1 described later. The operation codes 16 and 17 hang down from the operation device 1 at predetermined intervals in the front-rear direction FB.

The pulley operation drive units 20 and 30 form a driving force for raising and lowering the front curtain 12 and the rear curtain 13 by pulling the operation codes 16 and 17. FIG. 6 is a cross-sectional view of the operating device along the VI-VI line 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 different directions R1 and R2 when the front curtain 12 and the rear curtain 13 are raised and lowered by pulling the operation codes 16 and 17.

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 have cord pulleys 21 and 31, and one-way clutch devices 22 and 32, respectively.

FIG. 8 is a perspective view for explaining the configuration of the case, and is a view of the case 11 as viewed diagonally from the upper right. The case 11 houses the cord pulleys 21 and 31 and the one-way clutch devices 22 and 32. The cord pulley 21 and the one-way clutch device 22 of the pulley operation drive unit 20 are engaged with each other and are arranged 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. Further, the cord pulley 31 of the pulley operation drive unit 30 and the one-way clutch device 32 are engaged with each other and are arranged along the longitudinal direction LR. The cord pulley 31 and the one-way clutch device 32 are rotatably arranged 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 in the longitudinal direction LR on the opposite side of the head rail 101 and facing the right side R, and is closed by the cover 116.

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

A recess 117 is formed on the lower wall 115 on the opposite side of the side wall 111 so as to partially extend toward the side wall 111 along the longitudinal direction LR. The lower wall 115 has a protruding portion 115a protruding toward the cover 116 at a central portion in the front-rear direction FB. Two accommodating portions 117F and 117B are formed with the protruding portion 115a interposed therebetween in the front-rear direction FB.

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

The case 11 further has two cord guide members (guide portions) 40 and 50. The cord guide members 40 and 50 are attached to the case 11 at the position of the recess 117 of the lower wall 115. The cord guide members 40 and 50 guide the operation cords 16 and 17 whose one ends are fixed to the cord pulleys 21 and 31, respectively, inside and outside the case 11. The cord guide members 40 and 50 are provided in the recess 117 at predetermined intervals in the front-rear direction FB. Since the code guide members 40 and 50 have the same configuration as each other, the configuration will be described below by taking the code guide member 40 as an example.

9A and 9B are views for explaining the configuration of the cord guide member, FIG. 9A is a perspective view, FIG. 9B is a front view seen from the front side, and FIG. 9C is a plan view seen from the upper side. Is. FIG. 10 is a cross-sectional view taken along the line XX of FIG. 9 (c). The code guide member 40 is a square cylindrical member having a substantially rectangular shape in a plan view. The cord guide member 40 has a guide hole 41, an engaging recess 42, and an inclined portion 43.

The guide hole 41 extends along the axis x3 extending in the vertical direction UD in a state where the cord guide member 40 is attached to the case 11. The winding portion 161 of the operation code 16 described later is led out to the outside of the case 11 through the guide hole 41.

The engaging recess 42 engages with the guide strip 115b at the accommodating portion 117F of the recess 117 on the lower wall 115. The engaging recess 42 is formed concave from the outer surface of the cord guide member 40 toward the axis x3. The engaging recess 42 extends in an annular shape around the axis x3.

The inclined portion 43 has an inclined surface 44 extending diagonally with respect to the axis x3. The slope 44 of the inclined portion 43 faces the side (right side R) of the cover 116 in a state where the cord guide member 40 is attached to the case 11. The inclined portion 43 further has a recess 45 in which the portion of the guide hole 41 on the slope 44 is formed concave. In the non-operation state of the operation code 16, the joint cover portion 181 of the regulation member 18 described later abuts on the recess 45. The recess 45 has a shape for accommodating the tip portion 183 of the joint cover portion 181.

The positions of the two code 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 cross-sectional view taken along the line XI-XI in FIG. The code guide member 40 for the operation code 16 connected to the front curtain 12 has a front curtain 12 with respect to the code guide member 50 for the operation code 17 connected to the rear curtain 13 in the front-rear direction (short direction) FB. Located on the side of. That is, the code guide member 40 is located on the front side F with respect to the code guide member 50 in the front-rear direction FB. Thereby, when the operator wants to raise and lower the front curtain 12, the operator can raise and lower the front curtain 12 without mistake by selecting and pulling the operation code 16 relatively located on the front side F.

Similarly, the code guide member 50 that guides the operation code 17 for operating the rear curtain 13 located on the rear side B in the front-rear direction FB from the operating device 1 to the inside and outside is the front curtain 12 located on the front side F in the front-rear direction FB. The operation code 16 for the operation of the above is located on the rear side B with respect to the code guide member 40 that guides the operation code 16 from the operation device 1 to the inside and outside. As a result, when the operator wants to move the rear curtain 13 up and down, the operator can relatively select and pull the operation code 17 on the rear side B to raise and lower the rear curtain 13 without mistake.

Although the code guide members 40 and 50 are formed separately from the case 11 in the present embodiment, they may be integrally formed on the lower wall 115 of the case 11. In this case, holes or the like are formed at positions at predetermined intervals in the front-rear direction FB of the lower wall 115.

The operation code 16 is located indoors (front side F) with respect to the operation code 17. The operation code 17 is located outdoors (rear side) B with respect to the operation code 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.

The operation codes 16 and 17 are attached with regulatory members 18 and 19 that regulate the operation codes 16 and 17 from being wound into the case 11. The operation codes 16 and 17 have a cylindrical operation grip 163, 173. The operation grips 163 and 173 are attached to the ends of the operation portions 162 and 172 of the operation codes 16 and 17 on the side not fixed to the regulation members 18 and 19 (see FIG. 2). Since the operation codes 16 and 17 have the same configuration as each other, the configuration will be described below using the operation code 16 as an example.

FIG. 12 is a cross-sectional view taken along the line XII-XII of FIG. 13A and 13B are views for explaining the configuration of the regulating member, FIG. 13A is a vertical sectional view of the regulating member along the hanging direction of the operation code, and FIG. 13B is an enlargement of the XIII portion of (a). It is a figure. The operation code 16 has a take-up unit 161 and an operation unit 162. The winding unit 161 and the operating unit 162 are connected to each other by the regulating member 18.

The regulating members 18 and 19 are attached to the operation codes 16 and 17, and come into contact with the case 11 during non-elevating operation of the front curtain 12 and the rear curtain 13, so that the operation codes 16 and 17 are 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 during the non-elevating operation of the front curtain 12 and the rear curtain 13. The bottom portions 187 and 197 of the regulating members 18 and 19 are located on the side opposite to the head rail 101 (right side R) in the longitudinal direction LR with respect to the tip portions 183 and 193. Since the regulating members 18 and 19 have the same configuration as each other, the configuration will be described below by taking the regulating member 18 as an example.

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

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

The joint cover portion 181 is formed of an elastic material such as rubber as a member having a substantially conical cylinder shape. The joint cover portion 181 may be formed of an elastically deformable material. The joint cover portion 181 is closed by the tip portion 183 on the side in contact with the case 11, and is open on the base end side.

The joint cover portion 181 is formed so as to taper toward the tip portion 183 along the axis x4 along the insertion direction In of the joint portion 182. The tip portion 183 is curved in a dome shape. A hole 184 is formed in a substantially central portion 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 end portion on the proximal end side.

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

The columnar portion 186 has a through hole 188 and a ridge portion 189. The through hole 188 extends along the axis x4 from the tip of the columnar portion 186 to the bottom portion 187. The columnar portion 186 also penetrates in the direction intersecting the axis x4. The ridge portion 189 is formed to be convex toward the outside. The ridge 189 extends along the circumferential direction on the side of the bottom 187. The ridge 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 side opposite to the tip of the columnar portion 186. The bottom portion 187 is formed in a circular shape in a plan view and has a diameter larger than that of the columnar portion 186. The outer diameter of the bottom portion 187 is substantially the same as the outer diameter of the base end side of the joint cover portion 181.

The holes 184 of the joint cover portion and the through holes 188 of the joint portion 182 are concentric with each other in a state where the joint portion 182 is inserted into the joint cover portion 181 and are aligned with each other. The winding portion 161 of the operation code 16 is inserted through the hole 184 and the upper through hole 188. The take-up portion 161 has a knot at the end within the regulating member 18, and the knot prevents the winding portion 161 from coming out of the hole 184 and the upper through hole 188 (see FIG. 12).

In a state where the joint cover portion 181 and the joint portion 182 are engaged with each other, the operation portion 162 of the operation code 16 is inserted through the through hole 188 in the bottom portion 187 of the joint portion 182. The operation unit 162 has a knot at the end of the regulation member 18, and the knot prevents the operation unit 162 from coming out of 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 in the axis x4 passing through the center of the joint cover portion 181 and the joint portion 182 in a state of being engaged with each other. Has been done. The clearance C is reduced by the deformation of the joint cover portion 181.

The regulating member 18 is configured such that the axis x4 is inclined toward the lower side D in the longitudinal direction LR in a state where the tip 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 side (right side R) of the cover 116 with respect to the tip portion 183 of the joint cover portion 181. That is, the position where the operation unit 162 of the operation code 16 hangs down from the regulation member 18 is on the side opposite to the head rail 101 with respect to the position where the winding unit 161 of the operation code 16 advances from the code guide member 40 of the case 11. (R on the right side). The regulating member 18 is not limited to the cylindrical shape, but may be formed in a square tubular shape.

14A and 14B are views for explaining the configuration of the cord pulley, FIG. 14A is a perspective view of the cord pulley viewed from the right side R, and FIG. 14B is a perspective view of the cord pulley viewed from the left side L. .. The cord pulleys 21 and 31 are rotatably supported between the inner plates 80 and 90 described later. One end of the operation cord 16 is fixed to the cord pulley 21. One end of the operation cord 17 is fixed to the cord pulley 31. The operation cords 16 and 17 are wound around the outer peripheral surfaces of the cord pulleys 21 and 31. The operation codes 16 and 17 are wound around the outer peripheral surfaces of the cord pulleys 21 and 31 in a predetermined range (winding range) 211 and 311 along the rotation axes x1 and x2.

The guide holes 41 and 51 in which the cord guide members 40 and 50 guide the operation cords 16 and 17 in and out are located at positions overlapping with the winding ranges 211 and 311 of the cord pulleys 21 and 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 vertical direction UD. The cord pulley 31 is located on the upper side U with respect to the cord pulley 21 in the vertical direction UD. The cord pulleys 21 and 31 have a cylindrical winding portion 212 and 312 and a cylindrical locking portion 213 and 313. Since the cord pulleys 21 and 31 have the same configuration as each other, the configuration will be described below by taking 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 the inner plate 80 described later in the winding portion 212 along the rotation axis x1.

One end of the take-up portion 212 to which the spring 23 described later is attached is closed by the locking portion 213, and the other end is open. The take-up portion 212 has two flange portions 214. The flange portions 214 are provided along the axis x1 at intervals of the winding range 211. The flange portion 214 projects radially outward from the outer peripheral surface of the winding portion 212 in an annular shape.

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

The locking portion 213 engages with the spring 23. The locking portion 213 is formed in a columnar 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 accommodating holes 81 and 82 arranged in the vertical direction UD. The accommodating hole 81 is located on the lower side D with respect to the accommodating hole 82 in the vertical direction UD. The accommodating hole 81 rotatably supports the cord pulley 21 at the winding portion 212. The accommodating hole 82 is located on the upper side U with respect to the accommodating hole 81 in the vertical direction UD. The accommodating hole 82 rotatably supports the cord pulley 31 at the winding portion.

The operating device 1 further includes a roller 85 between the inner plates 80 and 90 (see FIG. 11). The roller 85 guides the operation cord 17 wound around the cord pulley 31 for raising and lowering the rear curtain 13 from the inside to the outside of the case 11. That is, the operation code 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 vertically in the vertical direction UD. The roller 85 is supported by the inner plates 80, 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 a position where the extending direction of the operation cord 17 hanging from the cord pulley 31 faces the rear wall 113 side. As a result, on the lower side D of the roller 85, the operation code 17 passes outside the operation code 16 wound around the cord pulley 21 (see FIG. 11).

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

The mainsprings 23 and 33 engage with the cord pulleys 21 and 31 which are rotatable so that the operation cords 16 and 17 can be wound and unwound. The springs 23 and 33 urge the cord pulleys 21 and 31 so that the operation cords 16 and 17 are wound around the cord pulleys 21 and 31.

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

The inner plate 90 has two accommodating portions 91 and 92 arranged vertically in the vertical direction UD. The accommodating portion 91 is located on the lower side D with respect to the accommodating portion 92 in the vertical direction UD. The accommodating portion 91 accommodates the spring 23. The accommodating portion 92 is located on the upper side U with respect to the accommodating portion 91 in the vertical direction UD. The accommodating portion 92 accommodates the spring 33.

The accommodating portions 91 and 92 are defined by wall portions 911 and 921 protruding 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 and 331 of the springs 23 and 33 are locked to the wall portions 911 and 921 at the slits 912 and 922 of the accommodating portions 91 and 92, respectively. The engaging portion 232 of the spring 23 is locked to the cord pulley 21 at the slit 216 of the cord pulley 21. The engaging portion 332 of the spring 33 is locked to the cord pulley 31 at the slit of the cord pulley 31.

The one-way clutch devices 22 and 32 are provided between the cord pulleys 21 and 31 and the clutch units 60 and 70 along the axes x1 and x2, respectively, and transmit the rotational force to the clutch units 60 and 70. The one-way clutch devices 22 and 32 are provided on the side of the clutch units 60 and 70 with respect to the cord pulleys 21 and 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 integrally with the cord pulleys 21 and 31.

The one-way clutch device 22 transmits the rotational force only in the predetermined rotational direction R1 to the clutch unit 60 on the downstream side by the output transmitted from the cord pulley 21. The one-way clutch device 32 transmits the rotational force only in the predetermined rotational direction R2 to the clutch unit 70 on the downstream side by the output transmitted from the cord pulley 31.

The one-way clutch devices 22 and 32 have housings 221, 321 and one-way clutches 227 and 327 (see FIG. 7). Since the housings 221 and 321 have the same configuration as each other, the configuration will be described below by taking the housing 221 as an example.

16A and 16B are perspective views for explaining the configuration of the housing of the one-way clutch device, FIG. 16A is a perspective view of the housing viewed from the right side, and FIG. 16B is a perspective view of the housing viewed from the left side. .. The housing 221 is formed in a cylindrical shape with one end closed on the cord pulley 21 side. The housing 221 engages with the inner peripheral surface of the cord pulley 21 on the outer peripheral surface. The housing 221 is formed as an insertion member to be inserted into the cord pulley 21. The housing 221 has three step portions 222 to 224 having different outer diameters.

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

The step portion 223 has two convex portions 225 as engaging portions (second engaging portions) on the outer peripheral surface. 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 peripheral surface and protrudes from the outer peripheral surface in a direction away from the axis x1. The outer diameter of the convex portion 225 is substantially the same as the outer diameter of the step portion 224. The one-way clutch device 22 engages with the convex portion 215 of the cord pulley 21 in the circumferential direction at the convex portion 225.

The housing 221 has three protrusions 226 on the inner peripheral surface. The convex portions 226 are provided on the inner peripheral surface of the step portion 284 at equal intervals. The convex portion 226 is a portion extending along the axis x1 on the inner peripheral surface and protruding from the inner peripheral surface in a semicircular shape toward the axis x1. The convex portion 226 engages with the one-way clutch 227 described later.

The one-way clutches 227 and 327 are engaged with the inner peripheral surfaces of the housings 221 and 321 on the outer peripheral surface. The one-way clutches 227 and 327 cannot rotate relative to the housings 221 and 321. The one-way clutches 227 and 327 transmit only the rotation of the operation codes 16 and 17 in the pull-out direction to the elevating shafts 112b and 113b via the clutch units 60 and 70. The one-way clutches 227 and 327 are press-fitted into the housings 221 and 321 so that they can rotate integrally with the housings 221 and 321.

The one-way clutches 227 and 327 are formed in a disk shape. The one-way clutches 227 and 327 are housed in the housings 221 and 321. The one-way clutches 227 and 327 have a hole in the center and three recesses on the outer peripheral surface. The drive shafts 611 and 711 of the clutch units 60 and 70, which will be described later, are inserted into the holes of the one-way clutches 227 and 327 so as not to rotate relative to each other.

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 concave portion is a portion recessed in a semicircular shape from the outer peripheral surface toward the axes x1 and x2. The one-way clutch 227 engages with the convex portion 226 of the housing 221 in a concave portion so as not to rotate relative to each other. The one-way clutch 327 engages with the convex portion of the housing 321 in a concave portion so as not to rotate relative to each other.

When the one-way clutch devices 22 and 32 are inserted into the cord pulleys 21 and 31, the cord pulley 21 and the cord pulley 21 for the one-way clutch devices 22 and 32 are switched between the elevating operation state and the non-elevation operation state of the front curtain 12 and the rear curtain 13. A space SP that enables idling of 31 is provided between the cord pulleys 21 and 31 and the one-way clutch devices 22 and 32 in the rotation directions R1 and R2. The cord pulleys 21 and 31 rotate the one-way clutch devices 22 and 32 when the convex portions 215 and 315 come into contact with the convex portions 225 and 325 of the one-way clutch devices 22 and 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 and 70 are connected to the case 11 of the pulley operation drive units 20 and 30 on the side wall 111 on the opposite side of 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 elevating shafts 112b and 113b on the downstream side when the operation codes 16 and 17, respectively, and when the operation codes 16 and 17 are not operated. The rotational force of the cord pulleys 21 and 31 can be switched to a non-transmission state in which the rotational force is not transmitted to the elevating shafts 112b and 113b on the downstream side. In the non-operation state of the operation codes 16 and 17, the regulation members 18 and 19 are in contact with the case 11 of the operation device 1.

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

The transmission side rotating portions 61 and 71 are connected to the pulley operation drive units 20 and 30, respectively. The transmission side rotating portions 61, 71 include a drive shaft 611, 711, a clutch spring cylinder 612, 712, a clutch spring 613, 713, and a transmission side meshing board 614, 714.

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

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

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

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

The transmitted side rotating portions 62 and 72 have a driven shaft 621 and 721 and a transmitted side meshing board 622 and 722. The transmitted side meshing board 622,722 is fixed to the end of the driven shaft 621,721 on the drive shaft 611,711 side. The drive shafts 611 and 711 are rotatably housed in the clutch cases 64 and 74 and the cam drums 63 and 73 at the ends opposite to the transmitted side meshing discs 622 and 722. The ends of the driven shafts 621 and 721 opposite to the pulley operation drive units 20 and 30 are connected to the elevating shafts 112b and 113b via the couplers 623 and 723, and rotate together with the elevating shafts 112b and 113b. ..

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

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

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

FIG. 19 is a developed view for explaining the configuration of the clutch unit cam drum, and shows the disengaged state of the clutch unit. Since the cam drums 63 and 73 have the same configuration, the configuration will be described below using the cam drum 63 as an example. The cam groove 630 has a winding groove 631 (see the alternate long and short dash line path) formed continuously in the circumferential direction as a main groove. The winding groove 631 has a meshing portion 632, a stop portion 633, and a holding portion 634.

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

The stop portion 633 is convexly curved 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 at the stop portion 633, the rotation of the cam drum 63 in the first rotation direction R1 is restricted.

The holding portion 634 is convexly curved in the first rotation direction R1 of the cam drum 63. When the holding portion 634 stops pulling the operation code 16 in one direction and releases it, the clutch ball 65 enters the holding portion 634, and the second rotation direction R2 of the cam drum 63 based on the self-weight drop of the front curtain 12 The rotation to is restrained, and the front curtain 12 does not descend by 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 hoisting groove 631 in the vicinity of the holding portion 634. The main release groove 635 has an inclined portion 637 toward the tip (0 °) side, and a main release portion 638 at the end of the inclined portion 637. When the clutch ball 65 moves relatively to the position of the main release unit 638, the clutch unit 60 performs a transmission release operation described later.

The sub-release groove 636 branches from the hoisting groove 631 in the vicinity of the meshing portion 632. The sub-release groove 636 has an inclined portion toward the base end (360 °) side and a sub-release portion 639 at the end of the inclined portion. When the clutch ball 65 is relatively moved and positioned in the sub-release unit 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 in the holding groove 641 along the axis x1 within the range of the length l along the axis x1 of the holding groove 641 and the cam groove. It moves in the 630 relative to the cam drum 63.

The length l along the axis x1 of the holding groove 641 is a release portion (main release portion 638, sub) located on the tip end (0 °) side of the meshing portion 632 located on the base end (360 °) side of the cam groove 630. It is formed to be smaller than the distance d in the axis x1 direction from the release portion 639) (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. As a result, the cam drum 63 moves along the axis x1 relative to the restrained clutch ball 65. As a result, the clutch ball 65 can move to the main release portion 638 and the meshing portion 632 and be located there.

Next, the operations of the clutch units 60 and 70 in the solar shading device 100 will be described with reference to FIGS. 19 to 22. Since the operations of the clutch units 60 and 70 are the same as each other except that the rotation directions are different, the operation will be described below using the clutch unit 60 as an example. FIG. 20 shows the meshing state of the clutch unit. FIG. 21 shows a rotation stopped state (clutch spring slipping state) of the clutch unit. FIG. 22 shows a holding state in which the position of the front curtain is held.

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

For example, before the start of operation, the clutch unit 60 is in a disengaged state. That is, before the start of operation, as shown in FIG. 19, the transmission side meshing board 614 of the transmission side rotating portion 61 and the transmitted side meshing board 622 of the transmitted side rotating portion 62 are separated from each other, and the meshing is released. It is in a state of being. From this state, an operation of pulling the operation code 16 in one direction to raise the front curtain 12 (a winding operation of winding up the elevating cord 14) will be described.

When the operation code 16 is pulled in one direction for operation, the code pulley 21 rotates in the first rotation direction R1. This rotation is transmitted to the drive shaft 611 of the transmission side rotating portion 61 in the clutch unit 60 via the one-way clutch device 22. The drive shaft 611 rotates in the 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 stopped at the main release portion 638 of the main release groove 635 passes through the inclined portion 637 from the main release portion 638 of the main release groove 635 relative to the cam drum 63. Then, it moves from the branch portion B to the hoisting groove 631 and moves in the holding groove 641 to the base end side (in the right direction in FIG. 19).

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

When the cam drum 63 moves to the tip side, the transmission side meshing board 614 of the clutch spring cylinder 612 that moves along the axis x1 together with the cam drum 63 also moves to the tip side along the axis x1 and is covered as shown in FIG. It meshes with the transmission side meshing board 622. In this state, the clutch unit 60 is in the meshed state.

The rotation of the first rotation direction R1 of the drive shaft 611 is transmitted to the driven shaft 621 via the transmission side meshing board 614 and the transmitted side meshing board 622, and the front curtain 12 is raised (wound) by the elevating shaft 112b. The operation starts.

Further, when the operation code 16 is continuously 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 operation code 16 is continuously 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 that the cam drum At the same time as 63, the rotation of the clutch spring 613 is stopped, and the tightening of the clutch spring cylinder 612 by the clutch spring 613 is loosened.

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

When the front curtain 12 is raised (wound) to a desired height and then the operation code 16 is stopped from being pulled in one direction to stop the operation, the elevating shaft 112b is set to 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 transmitted side meshing board 622, the transmitted side meshing board 614, the clutch spring cylinder 612, and the clutch spring 613.

By this rotation, as shown in FIG. 22, the clutch ball 65 enters the holding portion 634, and the rotation of the cam drum 63 in the second rotation direction R2 due to the self-weight drop of the front curtain 12 is stopped. As a result, the front curtain 12 can be held in a desired height position.

Next, when lowering the front curtain 12 in the wound state, the operation code 16 is slightly pulled in the same direction as when raising, and in the clutch unit 60, the clutch ball 65 is the holding portion 634 shown in FIG. Then, it advances through the hoisting groove 631 and moves relative to the cam drum 63 to a position beyond the branch portion B or the branch portion B with the main release groove 635.

Then, when the operation cord 16 is stopped from being pulled in one direction and the operation is stopped, the elevating shaft 112b rotates in the second rotation direction R2 due to the own weight of the front curtain 12, and the driven shaft 621 and the transmitted side meshing board The cam drum 63 is rotated in the second rotation direction R2 via the 622, the transmission side meshing board 614, the clutch spring cylinder 612, and the clutch spring 613.

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

As shown in FIG. 19, the transmission side meshing board 614 and the transmitted side meshing board 622 are separated from each other, and the meshing is released. Then, the transmitted side meshing board 622, the driven shaft 621, and the elevating shaft 112b can rotate freely, and the front curtain 12 descends by its own weight and is in a closed state.

Since the meshing between the transmission side meshing board 614 and the transmitted side meshing board 622 is released, the rotation of the driven shaft 621 in the second rotation direction R2 due to the self-weight drop of the front curtain 12 is caused by the drive shaft 611 and the clutch spring cylinder 612. And is not transmitted to the cam drum 63.

In the ascending (winding operation), as described above, the meshing between the transmission side meshing board 614 of the transmission side rotating portion 61 and the transmitted side meshing board 622 of the transmitted side rotating portion 62 is released (see FIG. 19). Then, the operation code 16 is pulled in one direction to bring it into a meshed state as shown in FIG. 20, and the front curtain 12 is wound up.

When the operation of the operation code 16 is immediately stopped after the meshing state is established in this way, the cam drum 63 rotates in the first rotation direction R1, and although not shown, the clutch ball 65 and the meshing portion 632 are passed and then the sub. It enters the release groove 636 and stops at the sub release portion 639.

As a result, similarly to the case where the clutch ball 65 enters the main release groove 635 (see FIG. 19), the transmission side meshing board 614 of the transmission side rotating portion 61 and the transmitted side meshing board 622 of the transmitted side rotating portion 62 Is in a state of being disengaged.

According to the solar radiation shielding device 100 as described above, the convex portions 215 and 315 on the cord pulleys 21 and 31 side and the convex portions on the one-way clutch devices 22 and 32 side in the non-elevating state in which the operation codes 16 and 17 are not operated. Not engaged with 225,325. Therefore, the cord pulleys 21 and 31 idle by the space SP, and the convex portions 215 and 315 come into contact with the convex portions 225 and 325 on the one-way clutch devices 22 and 32. As a result, the withdrawal amount of the operation codes 16 and 17 can be increased, the clutch balls 65 and 65 can be reliably reached to the disengagement position, and the clutch units 60 and 70 can be reliably disengaged.

For example, in the solar radiation shielding device 1000 according to the comparative example provided with the operating device 1 having no cord pulleys 21 and 31 and one-way clutch devices 22 and 32, when it is desired to lower the front curtain 12 folded up to the uppermost portion. , It is assumed that the front curtain 12 cannot be descended. FIG. 23 is a diagram for explaining a descent operation of the front curtain in the solar radiation shielding device according to the comparative example. The position of the lower end of the front curtain 12 in a state where the front curtain 12 is folded up to the uppermost portion is referred to as "lower end position K".

When the operation code 16 is operated and continuously pulled, the front curtain 12 hits the head rail 101. When the front curtain 12 hits the head rail 101, the front curtain 12 cannot be folded up any more. In the state where the operation code 16 is pulled, the lower end of the front curtain 12 is slightly above U above the lower end position K. In this state, the clutch ball 65 has reached the stop portion 633 of the cam drum 63, and the rotation of the cam drum 63 is restrained (see FIG. 23A).

When the operation code 16 is released, the operation code 16 is wound around the cord pulley 21 by the spring 21 and the regulating member 18 comes into contact with the case 11. The operating grip 163 rises and the regulating member 18 comes into contact with the case 11. In this state, the clutch ball 65 has reached the holding portion 634 of the cam drum 63, and the rotation of the cam drum 63 due to the self-weight drop of the front curtain 12 is stopped. As a result, the lower end of the front curtain 12 is held at the lower end position K (see FIG. 23 (b)).

Next, when the clutch unit 60 is disengaged and the front curtain 12 is lowered, the operation code 16 is pulled a little again. The regulating member 18 is slightly separated from the case 11, and the lower end of the front curtain 12 is located at a position U slightly above the lower end position K. In this state, the clutch ball 65 moves from the holding portion 634 of the hoisting groove 631 toward the main release groove 635 (see FIG. 23 (c)).

When the operation code 16 is released, the elevating shaft 112b rotates due to the weight of the front curtain 12. On the other hand, the operation cord 16 is wound around the cord pulley 21 by the spring 21.

The elevating shaft 112b continues to rotate in the descending direction, and the clutch ball 65 tends toward the main release portion 638. However, since the operation code 16 is wound around the cord pulley 21 again, the regulating member 18 comes into contact with the case 11 before the clutch ball 65 reaches the main release portion 638. After the case 11 comes into contact with the regulating member 18, the cord pulley 21 cannot rotate and the clutch ball 65 cannot reach the main release portion 638 (see FIG. 23 (d)).

In the solar radiation shielding device 1000 which does not have the cord pulleys 21 and 31 of the operating device 1 and the one-way clutch devices 22 and 32, the clutch ball 65 stays at the inclined portion 637 and the front curtain 12 cannot be lowered. The state is assumed.

On the other hand, in the operating device 1, the cord pulleys 21 and 31 can idle by a predetermined angle range with respect to the housings 28 and 38 of the one-way clutch devices 22 and 32. FIG. 24 is a diagram showing the relationship between the cord pulley and the housing of the one-way clutch device when the operation code is operated, FIG. 24A is a diagram showing a state before the operation code is operated, and FIG. 24B is a diagram showing a state before the operation code is operated. It is a figure which shows the state at the time of operation, and (c) is the figure which shows the state at the time of winding the operation cord to the cord pulley. 25 is a diagram showing the state of the operation code at the time of the clutch release operation and the state of the clutch ball in the cam drum, and FIG. 25A shows the state of the operation code in FIG. 24B and the state of the clutch ball in the cam groove. It is a figure, (b) is a schematic diagram which shows the state of the operation code in FIG. 24C, and the state of a clutch ball in a cam groove.

In the state shown in FIG. 24A, for example, the front curtain 12 is folded up to the uppermost portion, and the regulation member 18 (not shown) is in contact with the code guide member 40 of the case 11. In this state, a space SP is provided between the convex portion 215 of the cord pulley 21 adjacent to each other in the first rotation direction R1 and the convex portion 225 of the housing 221 of the one-way clutch device 22.

When the operation cord 16 is pulled from this state, the cord pulley 21 rotates by the space SP in the first rotation direction R1, and as shown in FIG. 24B, the convex portion 215 of the cord pulley 21 is the one-way clutch device 22. It abuts on the convex portion 225.

In this state, as shown in FIG. 25A, the operation code 16 is in a state where the regulating member 18 is slightly separated from the case 11. The cord pulley 21 idles with respect to the housing 221 of the one-way clutch device 22, and does not transmit the rotational force to the one-way clutch device 22. Therefore, since the cam drum 63 and the elevating shaft 112b do not rotate, the clutch ball 65 stays at the holding portion 634, and the front curtain 12 does not rise. In this state, the cam drum 63 of the solar radiation shielding device 1000 according to the comparative example rotates, and the clutch ball 65 is separated from the holding portion 634 (see FIG. 23 (c)).

The operation cord 16 can be further pulled in a state where the space SP in the first rotation direction R1 has disappeared, that is, in a state where the convex portion 215 of the cord pulley 21 is in contact with the convex portion 225 of the housing 221. The cord pulley 21 rotates together with the one-way clutch device 22 in the first rotation direction R1 (see FIG. 24 (b)). Therefore, the cam drum 63 and the elevating shaft 112b rotate, and the clutch ball 65 separates from the holding portion 634 and moves toward the main release groove 635 and toward the tip (0 °) along the axis x1. The front curtain 12 rises slightly (see FIG. 25 (b)).

By providing the space SP, the distance between the case 11 and the regulation member 18 of the operation code 16 can be lengthened. That is, the withdrawal amount of the operation code 16 can be increased. Next, when the operation code 16 is released, the cord pulley 21 is rotated in the second rotation direction R2 by the spring 23, the operation code 16 is wound up (see FIG. 24 (c)), and then returns to the initial state. (See FIG. 24 (a)). By the time the operation code 16 is wound up and the restricting member 18 comes into contact with the case 11, the clutch ball 65 can move to the main release portion 638 (see FIG. 25 (b)). In this state, in the state of the clutch ball 65 in the solar shading device 1000 according to the comparative example, the regulating member 18 comes into contact with the case 11 before reaching the main release portion 638, so that the meshed state of the clutch unit 60 is not released. (See FIG. 23 (d)).

As described above, since the space SP in which the cord pulleys 21 and 31 can idle by a predetermined angle range is provided between the cord pulleys 21 and 31 and the housings 221, 321 of the one-way clutch devices 22 and 32 in the circumferential direction. The withdrawal amount of the operation codes 16 and 17 can be increased. As a result, even if the front curtain 12 and the rear curtain 13 are folded up until they come into contact with the head rail 101, the clutch units 60 and 70 can be reliably disengaged from the meshed state. ..

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned first embodiment, and includes all aspects included in the concept of the present invention and the scope of claims. .. In addition, each configuration may be selectively combined as appropriate so as to achieve at least a part of the above-mentioned problems and effects. Further, for example, the shape, material, arrangement, size, etc. of each component in the above embodiment can be appropriately changed depending on the specific usage mode of the present invention. For example, in the above embodiment, the cord pulleys 21, 31 and the one-way clutch devices 22, 32 are provided with two convex portions 215, 315, 225, 325, but at least one convex portion 215, 315, 225,325 may be provided, and one or three convex portions 215, 315, 225, 325 may be provided.

<Second embodiment>
Hereinafter, the solar radiation shielding device 100A according to the second embodiment will be described. Hereinafter, the parts different from the operation device 1 and the solar radiation shielding device 100A according to the first embodiment will be mainly described. FIG. 26 is a front view of the solar radiation shielding device according to the second embodiment. FIG. 27 is a side view of the solar radiation shielding device shown in FIG. 26.

The solar radiation shielding device 100A according to the second embodiment operates the housing-shaped head rail 101A, two shielding materials 12A and 13A, the elevating cords 14A and 15A, the intermediate rail 120A, and the bottom rail 130A. The operation device 1A having the codes 16A and 17A is provided.

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

The solar shading device 100A according to the second embodiment is rotatably supported by the head rail 101A and the elevating shaft rotatably supported in the head rail 101A along the longitudinal direction LR of the head rail 101A. The upper curtain 12A and the rear curtain 13A are provided, and an operating device 1A attached to the head rail 101A and used for raising and lowering the upper curtain 12A and the rear curtain 13A. In the operation device 1A, one end of the operation codes 16A and 17A used for raising and lowering the upper curtain 12A and the rear curtain 13A is fixed, and the operation codes 16A and 17A can be wound and unwound, respectively. A clutch that selectively switches between a transmission state in which the rotational force of the pulley is transmitted to the elevating shaft and a non-transmission state in which it is not transmitted, and regulates the rotation of the elevating shaft in the direction in which the upper curtain 12A and the rear curtain 13A descend due to their own weight. It has two one-way clutch devices provided between the unit and the cord pulley and the clutch unit to transmit the rotation of the cord pulley and the cord pulley to the clutch unit. The cord pulley and the one-way clutch device can be engaged in the rotation direction of the cord pulley, and the space that allows the cord pulley to idle with respect to the one-way clutch device during the operation of the operation codes 16A and 17A is the cord pulley and the one-way clutch in the rotation direction. It is provided between the device and the device.

The head rail 101A is formed in the shape of a long housing having a storage 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 a 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. 26). The head rail 101A is not limited to the shape of a housing, and may have an I-shaped cross section along the FB in the lateral direction. Further, the operating device 1A can also be mounted inside the head rail 101A.

In the head rail 101A, a first drive device (not shown) for raising and lowering the intermediate rail 120A and a second drive device (not shown) for raising and lowering the bottom rail 130A are provided. One end of the elevating cord 14A for raising and lowering the intermediate rail 120A is fixed to the first drive device so that it can be wound and unwound. The other end of the elevating cord 14A is fixed to the intermediate rail 120A. One end of the elevating cord 15A for raising and lowering the bottom rail 130A is fixed to the second drive device so that it can be wound and unwound. The other end of the elevating cord 15A is fixed to the bottom rail 130A. The two elevating cords 14A and the two elevating cords 15A are provided at predetermined intervals along the longitudinal direction LR.

In the present embodiment, the elevating cords 14A and 15A are hung from two places, but from one place, two places or four or more places depending on the length of the solar shielding device 100A, the number of winding drums installed, and the like. It may be hung down.

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

The upper end of the upper curtain 12A is connected to the lower surface of the head rail 101A, and the lower end is 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 elevating cords 14A are inserted into the vertical UD.

The upper end of the lower curtain 13A is connected to the lower surface of the intermediate rail 120A, and the lower end is 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 elevating cords 15A are inserted through the vertical UD.

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

The operating device 1A is attached to, for example, the end of the right side R of the head rail 101A. The operation device 1A individually raises and lowers the upper curtain 12A and the lower curtain 13A in response to the operation of the operation codes 16A and 17A hanging from the operation device 1A. The operation device 1A includes operation codes 16A and 17A, regulation members 18A and 19A, two pulley operation drive units (not shown), and two clutch units (not shown). The configurations of the pulley operation drive unit and the clutch unit in the second embodiment are the same as the configurations of the pulley operation drive units 20 and 30 and the clutch units 60 and 70 in the first embodiment.

According to the solar shading device 100A according to the second embodiment, the same effect as that of the solar shading device 100 according to the first embodiment can be obtained.

<Third embodiment>
Hereinafter, the solar radiation shielding device 100B according to the third embodiment will be described. Hereinafter, the parts different from the operation device 1 and the solar radiation shielding device 100 according to the first embodiment will be mainly described. FIG. 27 is a front view of the solar radiation shielding device according to the third embodiment. FIG. 28 is a side view of the solar radiation shielding device shown in FIG. 27.

The solar shading device 100B includes a housing-shaped head rail 101B, a curtain 12B that is vertically supported with respect to the head rail 101B along the longitudinal direction LR of the head rail 101B, and one of the head rails 101B in the longitudinal direction LR. It comprises an operating device 1B having at least one cord pulley that is attached to the end of the rail and is capable of winding and unwinding the operating cord 16B used for raising and lowering the curtain 12B. The operation code 16B hangs down on the side opposite to the head rail 101B in the longitudinal direction LR from the winding range in the cord pulley at least partially in the portion led out from the operation device 1B to the outside.

The solar radiation shielding device 100B includes a housing-shaped head rail 101B, a single curtain 12B, an elevating cord 14B, and an operating device 1B having an operating code 16B.

Three take-up drums (not shown) are provided inside the head rail 101B. The take-up drums are arranged side by side along the longitudinal LR of the head rail 101B. The take-up drums are connected to each other by an elevating shaft (not shown). The elevating shaft is rotatably supported by the head rail 101B.

In the solar radiation shielding device 100B, the number of winding drums in each winding drum is not particularly limited.

The head rail 101B is formed in the shape of a long housing having a storage space inside. The head rail 101B has a bracket 102B. The head rail 101B is attached to an attachment target such as a window frame or a wall around the window via the bracket 102B. An operating device 1B, which will be described later, is attached to one end of the head rail 101B in the longitudinal direction L (right side R in FIG. 28). The head rail 101B is not limited to the shape of a housing, and may have an I-shaped cross section along the FB in the lateral direction. Further, the operating device 1B can also be mounted inside the head rail 101B.

The curtain 12B is hung from the head rail 101B on the front side F, which is the side opposite to the bracket 102B in the front-rear direction FB. The curtain 12B is wound up with respect to the head rail 101A via the three elevating cords 14B. Each elevating cord 14B is fixed to each take-up drum 112Ba at one end. Each elevating cord 14B is attached to the lower end of the curtain 12B in the vertical direction UD at the other end on the side facing the bracket 102B of the curtain 12B via the cord adjuster 141B.

In the solar shading device 100B, the operating device 1B is attached to, for example, the end of the right side R of the head rail 101B. The operation device 1B raises and lowers the curtain 12B in response to the operation of the operation code 16B hanging from the operation device 1B. The operation device 1B includes an operation code 16B, a regulation member 18B, one pulley operation drive unit (not shown), and one clutch unit (not shown). The configuration of the pulley operation drive unit and the clutch unit of the operation device 1B is the same as the configuration of the pulley operation drive unit and the clutch unit in the first embodiment.

According to the solar radiation shielding device 100B as described above, the same effect as that of the solar radiation shielding device 100 according to the first embodiment can be obtained.

1,1A, 1B operation device, 11 cases, 12 front curtain (shielding material), 12A upper curtain (shielding material), 12B curtain (shielding material), 13 shielding material (rear curtain), 13A lower curtain (shielding material), 16,17 Operation code (code), 18,18A, 18B, 19, 19A, 19B Regulatory member, 20,30 Pulley operation drive unit, 21,31 Code pulley, 22,32 One-way clutch device, 23,33 Zenmai spring ( Spring member), 28,38 housing, 40,50 cord guide member, 60,70 clutch unit, 63,73 cam drum, 100,100A, 100B solar shielding device, 215,315 convex part (first engaging part), 225 , 325 Convex part (second convex part)

Claims (4)

With the head rail,
With at least one shielding material rotatably supported with respect to an elevating shaft rotatably supported within the headrail along the longitudinal direction of the headrail.
An operating device attached to the head rail and used for raising and lowering the shielding material, and
Equipped with
The operating device is
At least one cord pulley to which one end of at least one operation cord used for raising and lowering the shielding material is fixed and the operation cord can be wound and unwound, and
At least one that selectively switches between a transmission state in which the rotational force of the cord pulley is transmitted to the elevating shaft and a non-transmission state in which the rotational force is not transmitted, and regulates the rotation of the elevating shaft in the direction in which the shielding material descends due to its own weight. With one clutch unit,
At least one one-way clutch device provided between the cord pulley and the clutch unit and transmitting the rotation of the cord pulley and the cord pulley to the clutch unit.
Have,
The cord pulley and the one-way clutch device can be engaged with each other in the rotation direction of the cord pulley, and a space that allows the cord pulley to idle with respect to the one-way clutch device when operating the operation cord is the space in the rotation direction. A solar radiation shielding device provided between the cord pulley and the one-way clutch device. Used for raising and lowering at least one shield that is rotatably supported with respect to a lift shaft that is rotatably supported within the headrail of the solar shielding device.
At least one cord pulley to which one end of at least one operation cord used for raising and lowering the shielding material is fixed and the operation cord can be wound and unwound, and
A clutch unit that selectively switches between a transmission state in which the rotational force of the cord pulley is transmitted to the elevating shaft and a non-transmission state in which the rotational force is not transmitted, and regulates the rotation of the elevating shaft in the direction in which the shielding material descends due to its own weight. When,
At least one one-way clutch device provided between the cord pulley and the clutch unit and transmitting the rotation of the cord pulley and the cord pulley to the clutch unit.
Equipped with
The cord pulley and the one-way clutch device can be engaged with each other in the rotation direction of the cord pulley, and a space that allows the cord pulley to idle with respect to the one-way clutch device when operating the operation cord is the space in the rotation direction. An operating device for a solar shading device, which is provided between a cord pulley and the one-way clutch device. The cord pulley has at least one first engaging portion that engages with the one-way clutch device on the inner peripheral surface.
The one-way clutch device is at least partially inserted into the cord pulley and has at least one second engaging portion on the outer peripheral surface that engages the first engaging portion in the rotational direction.
The solar shading device according to claim 2, wherein the cord pulley idles in the rotational direction until the first engaging portion contacts the second engaging portion when the operation cord is operated. Operating device. The first engaging portion is formed as two first convex portions protruding inward at positions facing each other in the rotational direction.
The operating device for a solar shading device according to claim 3, wherein the second engaging portion is formed as two second convex portions protruding outward at positions facing each other in the rotation direction. ..

Images