JP7611085B2 - Operating device for solar shading device and solar shading device - Google Patents

Description

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

Conventionally, a solar shading device is known that includes a shading material suspended from a head box (head rail) and an operating device that raises and lowers the shading material in response to a user's raising and lowering operation. The operating device includes a winding cord used to raise and lower the shading material, a rotatable cord pulley to which one end of the winding cord is connected so that it can be pulled out and wound, a spring that engages with the cord pulley and urges the winding cord in a direction in which it is constantly wound around the cord pulley, a container that houses the cord pulley, and a stopper that prevents the winding cord from being wound around the cord pulley by more than a predetermined amount (see, for example, Patent Document 1).

In the operating device described in Patent Document 1, a gripping cord is provided on the other end of the winding cord to be gripped by the user, and the gripping cord is connected to the winding cord via the stopper body. The stopper has a stopper body connected to the winding cord and a cover that houses the stopper body. The stopper is capable of switching between an unhoused state in which at least a portion of the stopper body is not housed in the cover against the biasing force of the spring, and a housed state in which the stopper body is housed in the cover by the biasing force of the spring.

JP 2017-133293 A

However, in Patent Document 1, the winding cord is always biased in the winding direction, so even when the stopper body is being attached to the winding cord, the winding cord is biased so as to be wound into the container.

Even if the stopper body were attached to the winding cord, the operation of connecting it to the gripping cord would have to be performed under conditions where the winding cord was always subjected to a biasing force in the winding direction, leaving room for improvement in operability.

Furthermore, the stopper body is connected near one end of the winding cord that is protruding from the container. Because the winding cord is biased in the winding direction, the stopper body itself is located near the container. This means that the work of connecting the gripping cord must be carried out near the shielding material and the container, which can impair workability or lead to the worker coming into contact with the shielding material during work and soiling it.

The present invention was made in consideration of the above problems, and aims to provide a technology that makes it easier to connect a winding cord to other components.

In order to solve the above problems, the operating device for a sunshade device according to the present invention is used for lifting and lowering a shading material supported so as to be freely raised and lowered on a lifting shaft rotatably supported within the head rail of the sunshade device, and is provided with a winding cord used for lifting and lowering the shading material, a cord pulley to which one end of the winding cord is fixed and which is rotatable so as to be able to wind and pull out the winding cord, a spring which engages with the cord pulley and constantly biases the winding cord in a direction in which it is wound around the cord pulley, and a container which accommodates the cord pulley, and the container is characterized in that it is capable of engaging with the winding cord when it is pulled out, and has a locking portion which prevents the winding cord from rewinding into the container against the biasing force of the spring.

This invention makes it easier to connect the winding cord and the gripping cord.

1 is a front view of a solar shading device according to a first embodiment. FIG. FIG. 2 is a side view of the solar shading device shown in FIG. 1 . 2 is a perspective view of an operating device in the solar shading device according to the first embodiment. FIG. 2 is an exploded perspective view of an operating device in the solar shading device according to the first embodiment. FIG. FIG. FIG. 2 is a perspective view of the case as viewed from the side wall portion side. FIG. 4 is a perspective view of the cord pulley as viewed from the right side. FIG. 2 is a perspective view of the cord pulley as viewed from the left side. FIG. 2 is a diagram showing the operating device with the cover removed. FIG. 2 is a perspective view of the one-way clutch device as viewed from the right side. FIG. 2 is a perspective view of the one-way clutch device as viewed from the left side. 5A and 5B are diagrams for explaining a configuration of a restricting member. FIG. 13 is a diagram showing a state in which the winding cord is pulled out. 1A and 1B are diagrams showing a state in which the operating device according to the first embodiment is stored; FIG. 11 is an exploded perspective view of a container according to a second embodiment, seen from diagonally below. FIG. 11 is a perspective view of the cover in the second embodiment, seen from diagonally below. FIG. FIG. 2 is a perspective view of the slider as viewed from above. FIG. 4 is a plan view of the slider as viewed from below. FIG. 13 is a diagram showing a state in which the winding cord is pulled out. FIG. 11 is a perspective view of the case according to the third embodiment, seen from below. FIG. 13 is a view of the case according to the third embodiment as seen from the front side. FIG. 13 is a diagram showing a state in which the winding cord is pulled out. FIG. 13 is a perspective view showing an operating device according to a fourth embodiment. FIG. FIG. 13 is a diagram showing a state in which the winding cord is pulled out.

1. Overview of the embodiment First, an overview of a representative embodiment of the present invention will be described. Note that in the following description, as an example, reference numerals in the drawings corresponding to components of the invention are given in parentheses.

[1] The operating device (1) for the solar shading device (100) is used for lifting and lowering the shading material (102, 103) supported so as to be freely raised and lowered on the lifting shaft (112b, 113b) rotatably supported within the head rail (101) of the solar shading device (100), and comprises a winding cord (21a, 31a) used for lifting and lowering the shading material (102, 103), a cord pulley (20, 30) to which one end of the winding cord (21a, 31a) is fixed and which is rotatable so as to be able to wind and pull out the winding cord (21a, 31a), and a cord pulley (20, 30). The reel includes a spring (24, 34) that engages with the reel (21a, 31a) and constantly urges the reel (21a, 31a) in the direction of reeling it around the cord pulley (20, 30), and a reel (10) that accommodates the cord pulley (20, 30), and the reel (10) is capable of engaging with the reel (21a, 31a) when the reel (21a, 31a) is pulled out, and has a locking portion (90) that prevents the reel (21a, 31a) from rewinding back into the reel (10) against the urging force of the spring (24, 34).

[2] In the above-mentioned operating device (1), the locking portion (90) is a slit (91) formed in the container 10 so as to be able to clamp the winding cord (21a, 31a).

[3] In the above-mentioned operating device (1), the locking portion (90) includes a protrusion (93) formed on the container (10) and a slider (94) attached to the container (10) so as to be slidable toward and away from the protrusion (93),
When the slider (94) approaches the protrusion (93), the locking portion (90) clamps the winding cord (21a, 31a) between the protrusion (93) and the slider (94) to prevent the winding cord (21a, 31a) from rewinding into the container (10).

[4] In the above-mentioned operating device (1), the protrusion (93) has a recess (93a) and a protrusion (93b) on the surface facing the slider (94), and the slider (94) has a protrusion (94d) that engages with the recess (93a) of the protrusion (93) and a recess (94c) that engages with the protrusion (93b) of the protrusion (93).

[5] In the above-mentioned operating device (1), the container (10) has an opening (12b) that slidably holds the slider (94), and a pair of recesses (12c, 12d) are formed in the opening (12b) at positions that intersect with each other in the sliding direction, and a pair of protrusions (94f) that can engage with the pair of recesses (12c, 12d) are formed in the portion of the slider (94) held in the opening (12b). When the pair of recesses (12c, 12d) formed in the opening (12b) and the pair of protrusions (94f) formed in the portion of the slider (94) held in the opening (12b) are engaged with each other, the slider (94) and the protrusion (93) are maintained in close proximity to each other.

[6] In the above-mentioned operating device (1), the locking portion (90) is a rod-shaped protrusion (95) formed to protrude from the outer surface of the container (10), and the winding cord (21a, 31a) is wound around the outer circumferential surface of the protrusion (95) to prevent the winding cord (21a, 31a) from rewinding back into the container (10).

[7] The operating device (1) for the solar shading device (100) is used for lifting and lowering the shading material (102, 103) supported so as to be freely raised and lowered on the lifting shaft (112b, 113b) rotatably supported within the head rail (101) of the solar shading device (100), and comprises a winding cord (21a, 31a) used for lifting and lowering the shading material (102, 103), a cord pulley (20, 30) to which one end of the winding cord (21a, 31a) is fixed and which is rotatable so as to be able to wind and pull out the winding cord (21a, 31a), and a cord pulley (20, 30) which engages with the cord pulley (20, 30) to constantly wind the winding cord (21a, 31a) around the cord pulley (20, 30). The cord pulley (20, 30) is biased by a spring (24, 34) in a direction in which the cord is wound around the pulley (20, 30), a container (10) that contains the cord pulley (20, 30), and a stopper (96) that can be fixed at any position on the winding cord (21a, 31a) and can move in the extension direction of the winding cord (21a, 31a). The stopper (96) is fixed at a position a predetermined distance from the pulled-out end of the winding cord (21a, 31a) when the winding cord (21a, 31a) is pulled out, and abuts against the container (10) to prevent the winding cord (21a, 31a) from being rewound into the container (10) by the biasing force of the spring (24, 34).

Below, an embodiment of the present invention will be described with reference to the drawings.

The solar shading device according to the present invention is a known solar shading device and is not limited to a specific solar shading device, and can be applied to shading materials such as roman shades, vertical blinds, aluminum blinds, pleated screens, shutters, etc. For example, the operating device 1 according to the present invention is applied to the solar shading device 100 shown in Figures 1 and 2.

<First embodiment>
Fig. 1 is a front view of a solar shading device 100 according to embodiment 1. Fig. 2 is a side view of the solar shading device 100 shown in Fig. 1. The solar shading device 100 is a cover that is fixed to, for example, a window frame or a wall around a window, and that allows the outside to be seen from inside the room, prevents the inside of the room from being seen from outside, allows light and wind to enter the room, and prevents light and wind from entering the room.

For ease of explanation, the direction in which the head rail 101 of the solar shading device 100 extends is referred to as the longitudinal direction (left-right direction) LR. In addition, in the longitudinal direction LR, for example, the left side in FIG. 1 as viewed from the indoor side is referred to as the "left side L" and the right side is referred to as the "right side R". Furthermore, the direction in which the shielding materials (hereinafter also referred to as the "front curtain" and "rear curtain") 102, 103 hang down or rise up and down with respect to the head rail 101 is referred to as the up-down direction (hanging direction, rising and falling direction) UD. In the up-down direction UD, the side of the head rail 101 is referred to as the "upper side U" and the side away from the head rail 101 downward is referred to as the "lower side D". Furthermore, the direction intersecting the longitudinal direction LR and the up-down direction UD is referred to as the short side direction (front-to-back direction) FB. In addition, in the short side direction FB, for example, the indoor side is referred to as the "front side F" and the outdoor side is referred to as the "rear side B".

The solar shading device 100 according to the first embodiment includes a box-shaped head rail 101, two shading materials 102 and 103, lifting and lowering cords 104 and 105, and an operating device 1. The configuration of the solar shading device 100 will be described in detail below.

The head rail 101 is formed in a long box shape with an internal storage space. The head rail 101 has a bracket 106. The head rail 101 is attached to an attachment target, such as a window frame or a wall around a window, via the bracket 106. An operating device 1, which will be described later, is attached to one end of the head rail 101 in the longitudinal direction LR (the right side R in FIG. 1). Note that the head rail 101 is not limited to a box shape, and the cross section along the short side direction FB may be an I-shape. The operating device 1 can also be attached inside the head rail 101.

Three winding drums 112a, 113a are provided inside the head rail 101, arranged above and below each other in the vertical direction UD. The winding drum 112a is located below the winding drum 113a on the lower side D.

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

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

In addition, the number of winding drums 112a, 113a in the solar shading device 100 is not particularly limited.

The front curtain 102 and rear curtain 103 are supported so that they can be raised and lowered relative to the head rail 101 along the longitudinal direction LR of the head rail 101. The front curtain 102 is located on the indoor side F in the short direction FB relative to the rear curtain 103. The rear curtain 103 is located on the outdoor side B in the short direction FB relative to the front curtain 102.

The front curtain 102 is wound up relative to the head rail 101 via three lifting cords 104. One end of each lifting cord 104 is fixed to the respective winding drum 112a. The other end of each lifting cord 104 is attached to the lower end of the front curtain 102 in the up-down direction UD via a cord adjuster 141 on the side of the front curtain 102 facing the rear curtain 103.

The front curtain 102 rises when each lifting cord 104 is wound around each winding drum 112a by the rotational force transmitted from the operating device 1 via the lifting shaft 112b, and falls when each cord is unwound.

The rear curtain 103 is wound up relative to the head rail 101 via three lifting cords 105. One end of each lifting cord 105 is fixed to the respective winding drum 113a. The other end of each lifting cord 105 is attached to the lower end of the rear curtain 103 in the up-down direction UD via a cord adjuster 151 on the side of the rear curtain 103 opposite the front curtain 102 (rear side B).

The rear curtain 103 rises when each lifting cord 105 is wound around each winding drum 113a by the rotational force transmitted from the operating device 1 via the lifting shaft 113b, and falls when the cord is unwound. Note that in FIG. 1, each lifting cord 105 cannot be seen because it overlaps with the lifting cord 104 of the front curtain 102 in the front-to-rear direction FB.

In the first embodiment, the lifting cords 104, 105 hang down from three points, but they may hang down from one, two, or four or more points depending on the length of the solar shading device 100, the number of winding drums 112a, 113a installed, etc.

Figure 3A is a perspective view of the operating device 1 in the solar shading device 100 according to embodiment 1. Figure 3B is an exploded perspective view of the operating device 1 in the solar shading device 100 according to embodiment 1. Note that operation cords 21 and 31 are not shown in Figure 3B.

In the solar shading device 100, the operating device 1 is attached, for example, to the end of the right side R of the head rail 101. The operating device 1 raises and lowers the front curtain 102 and the rear curtain 103 individually in response to the operation of the operating cords 21, 31 hanging down from the operating device 1. The operating device 1 has a container 10, two pulley operating drive units 2, 3, and two clutch units 6, 7.

In the first embodiment, the rotation direction +R1 when pulling out the operating cord 21 in the pulley operation drive unit 2 and the clutch unit 6 (hereinafter also referred to as the "pulling out direction") is counterclockwise, and the rotation direction -R1 when winding up the operating cord 21 in the pulley operation drive unit 2 and the clutch unit 6 (hereinafter also referred to as the "winding direction") is clockwise. Also, in the first embodiment, the rotation direction +R2 when pulling out the operating cord 31 in the pulley operation drive unit 3 and the clutch unit 7 (hereinafter also referred to as the "pulling out direction") is clockwise, and the rotation direction -R2 when winding up the operating cord 31 in the pulley operation drive unit 3 and the clutch unit 7 (hereinafter also referred to as the "winding direction") is counterclockwise.

The container 10 is exposed, for example, from the end of the right side R of the head rail 101. The container 10 has a case 11 and a cover 12. The case 11 and the cover 12 are formed, for example, from resin in a box-like shape. The case 11 houses the pulley operation drive units 2 and 3 inside. Figure 4A is an exploded perspective view of the container 10.

The case 11 is surrounded by a peripheral wall 111 in the front-to-rear direction FB and the up-down direction UD. The case 11 is closed on the head rail 101 side in the longitudinal direction LR by a side wall 112, and the side opposite the head rail 101 (left side L) is open and closed by a cover 12.

The storage space S that houses the pulley operation drive units 2, 3 is defined by a peripheral wall portion 111 and a side wall portion 112. The lower side D portion of the peripheral wall portion 111 in the up-down UD direction has two storage portions 113, 114. The storage portions 113, 114 are spaced apart at a predetermined distance in the front-to-rear direction FB and are recessed toward the side wall portion 112 along the longitudinal direction LR.

Cord guide members 115, 116 are removably accommodated in the storage sections 113, 114, respectively. When attached to the storage sections 113, 114, the cord guide members 115, 116 have holes penetrating in the up-down and down-right directions, and guide the operating cords 21, 31, one end of which is fixed to the cord pulleys 20, 30, respectively, into and out of the case 11.

The side wall portion 112 has two storage holes 117, 118. The storage holes 117, 118 are formed side by side in the up-down UD direction. In the storage space S, a pulley operation drive unit 2 is provided at a position corresponding to the storage hole 117 of the side wall portion 112, and a pulley operation drive unit 3 is provided at a position corresponding to the storage hole 118 of the side wall portion 112.

On the surface of the side wall portion 112 opposite the storage space S, the clutch unit 6 is attached at a position corresponding to the storage hole 117, and the clutch unit 7 is attached at a position corresponding to the storage hole 118.

Through the accommodation hole 117, the pulley operation drive unit 2 and the clutch unit 6 are connected to each other on the same rotation axis (axis x1), and the rotational force from the pulley operation drive unit 2 is transmitted to the clutch unit 6. Also, through the accommodation hole 118, the pulley operation drive unit 3 and the clutch unit 7 are connected to each other on the same rotation axis (axis x2), and the rotational force from the pulley operation drive unit 3 is transmitted to the clutch unit 7.

Figure 4B is an oblique view of the case 11 seen from the side wall portion 112 side. The case 11 has two voids 112c in the lower portion D. The two voids 112c are provided at a predetermined distance in the front-to-rear direction FB. The voids 112c extend from the side wall portion 112 toward the cover 12.

In the space 112c, a locking portion 90 is formed in each wall portion of the lower side D. In the first embodiment, the locking portion 90 is formed by a slit 91. When the operating device 1 is attached to the head rail 101, the slit 91 extends a predetermined length from the edge of the space 112c on the head rail 101 side toward the cover 12 side. The width of the slit 91 is smaller than, for example, the thickness or diameter of the winding cords 21a and 31a described below.

One of the spaces 112c is located on the front side F of the other space 112d. The winding cord 21a of the operating cord 21 is engaged in the slit 91 in one of the spaces 112c. The winding cord 31a of the operating cord 31 is engaged in the slit 91 in the other space 112c.

Pulley operation drive unit 2 is located below pulley operation drive unit 3 in the vertical direction UD. Pulley operation drive unit 3 is located above pulley operation drive unit 2 in the vertical direction UD. Pulley operation drive units 2 and 3 rotate in different directions when the front curtain 102 and rear curtain 103 are raised and lowered by pulling operation cords 21 and 31.

The pulley operation drive unit 2 is provided for raising and lowering the front curtain 102. The pulley operation drive unit 3 is provided for raising and lowering the rear curtain 103. The pulley operation drive units 2 and 3 each have a cord pulley 20, 30 and a one-way clutch device 40, 50.

The cord pulley 20 and one-way clutch device 40 of the pulley operation drive unit 2 are engaged with each other and aligned along the longitudinal direction LR. The cord pulley 20 and one-way clutch device 40 are arranged so that they can rotate together around the same axis x1. The cord pulley 30 and one-way clutch device 50 of the pulley operation drive unit 3 are engaged with each other and aligned along the longitudinal direction LR. The cord pulley 30 and one-way clutch device 50 are arranged so that they can rotate together around the same axis x2.

The cord pulleys 20, 30 are supported rotatably between the inner plates 120, 130. The inner plates 120, 130 face each other on the axes x1, x2 when housed in the container 10. The inner plate 120 is located on the side of the one-way clutch devices 40, 50 relative to the inner plate 130.

The inner plate 120 has two accommodation openings 121, 122 that are arranged in the up-down direction UD and have a circular shape in a plan view (see FIG. 3B). The accommodation openings 121, 122 are arranged next to each other in the up-down direction UD. The accommodation openings 121, 122 support the cord pulleys 20, 30 so that they can rotate. The accommodation opening 121 is located on the lower side D of the accommodation opening 122 in the up-down direction UD.

The inner diameter of the accommodation openings 121, 122 is slightly larger than the outer diameter of the cord pulleys 20, 30 described below. The edge of the accommodation openings 121, 122 on the side of the one-way clutch device 40, 50 is convex toward the axis x1. The inner diameter of the accommodation openings 121, 122 at this edge is smaller than the outer diameter of the cord pulleys 20, 30, so that the cord pulleys 20, 30 are prevented from slipping out of the accommodation openings 121, 122 to the side of the one-way clutch device 40, 50 along the axis x1.

One end of the operating cord 21 is fixed to the cord pulley 20, and one end of the operating cord 31 is fixed to the cord pulley 30. The operating cords 21 and 31 are wound around the outer circumferential surfaces of the cord pulleys 20 and 30, respectively.

The operating cords 21, 31 are fitted with restricting members 211, 311 that restrict the operating cords 21, 31 from being wound into the case 11. The restricting members 211, 311 are attached to the ends of the operating cords 21, 31 opposite the ends fixed to the cord pulleys 20, 30. The winding rotation of the operating cords 21, 31 around the cord pulleys 20, 30 caused by the biasing force of the spiral springs 24, 34 is stopped when the restricting members 211, 311 come into contact with the lower D portion (cord guide members 115, 116) of the peripheral wall portion 111 of the case 11.

The operating cord 21, 31 includes two cords, a winding cord 21a, 31a and a gripping cord 21b, 31b (see FIG. 8). One end of the winding cord 21a, 31a is fixed to the cord pulley 20, 30, and the other end is fixed to the regulating member 211, 311. One end of the gripping cord 21b, 31b is fixed to the regulating member 211, 311, and the other end is fixed to the operating grip 163, 173.

Since the cord pulleys 20 and 30 have the same configuration, the configurations of the cord pulleys 20 and 30 will be described below using the same figure. Figure 5A is a perspective view of the cord pulleys 20 and 30 as seen from the right side R. Figure 5B is a plan view of the cord pulleys 20 and 30 as seen from the left side L.

The cord pulley 20; 30 is a cylindrical member that is open on the one-way clutch device 40; 50 side and closed on the inner plate 130 side when housed in the inner plate 120. The cord pulley 20; 30 has a cylindrical tube portion 22; 32 and a closed portion 23; 33.

The cylindrical portion 22; 32 has an enlarged diameter portion 221; 321 and a reduced diameter portion 222; 322. The outer diameter of the enlarged diameter portion 221; 321 is formed to be larger than the reduced diameter portion 222; 322. The cylindrical portion 22; 32 is rotatably accommodated in the accommodation opening 121; 122 of the inner plate 120 at the enlarged diameter portion 221; 321.

The reduced diameter portion 222; 322 extends from the expanded diameter portion 221; 321 over a predetermined range along the axis x1; x2. A closed portion 23; 33 is provided on the opposite side of the expanded diameter portion 221; 321 across the reduced diameter portion 222; 322, and the winding cord 21a; 31a of the operating cord 21; 31 is wound around the outer circumferential surface of the reduced diameter portion 222; 322 between the expanded diameter portion 221; 321 and the closed portion 23; 33.

The cylindrical portion 22; 32 has a hole (through hole) 224; 324 that extends from the outside to the inside of the cylindrical portion 22; 32 along the axis x1; x2 on the surface of the expanded diameter portion 221; 321 facing the closed portion 23; 33. One end of the winding cord 21a; 31a is guided to the inner peripheral surface of the cylindrical portion 22; 32 through the hole 224; 324.

The tubular portion 22; 32 has a groove portion 227; 327 extending circumferentially from the hole 224; 324 on the inner peripheral surface side of the expanded diameter portion 221; 321. A knot is formed at one end of the winding cord 21a; 31a guided from the outer peripheral surface side to the inner peripheral surface side of the cord pulley 20; 30 through the hole 224; 324. The portion of the winding cord 21a; 31a remaining on the tip side from the knot is accommodated in the groove portion 227; 327. This makes it possible to prevent the excess portion of the operating cord 21; 31 from interfering with other components when, for example, the cord pulley 20; 30 rotates (see FIG. 5B).

The cylindrical portion 22; 32 has two protrusions 228; 328 as engagement portions on the inner peripheral surface side of the reduced diameter portion 222; 322. The two protrusions 228; 328 are provided at positions facing each other in the radial direction. The protrusions 228; 328 extend from the inner peripheral surface along the axis x1; x2 and protrude toward the axis x1; x2. A one-way clutch device 40; 50 (described later) is inserted into the cord pulley 20; 30 from the side opposite the closing portion 23; 33. When the one-way clutch device 40; 50 is inserted, the protrusions 228, 328 on the inner peripheral surface of the cord pulley 20; 30 engage with the protrusions 416; 516 on the outer peripheral surface of the one-way clutch device 40; 50 in the rotational direction.

The closing portion 23; 33 has a cylindrical rod-shaped portion 231; 331. The rod-shaped portion 231; 331 extends along the axis x1; x2 on the opposite side to the tube portion 22; 32. The rod-shaped portion 231; 331 engages with a spiral spring 24; 34 housed in an inner plate 130, which will be described later. A slit 232; 332 is formed at the tip of the rod-shaped portion 231; 331. The slit 232; 332 extends in the radial direction of the rod-shaped portion 231; 331 and in the direction of the axis x1; x2.

The inner plate 130 has two storage recesses 131, 132 arranged vertically in the up-down direction UD. The storage recesses 131, 132 are formed as recesses on the surface opposite the cord pulleys 20, 30 when the cord pulleys 20, 30 are stored in the inner plates 120, 130.

Figure 6 is a diagram showing the operating device 1 with the cover 12 removed. The storage recess 131 is located on the lower side D of the storage recess 132 in the up-down UD direction, and the storage recess 132 is located on the upper side U of the storage recess 131 in the up-down UD direction. The storage recess 131 stores the spiral spring 24, and the storage recess 132 stores the spiral spring 34.

The power spring 24 is engaged with a cord pulley 20 that can rotate to wind and pull out the operating cord 21. The power spring 24 urges the cord pulley 20 in a winding direction -R1 so as to wind the operating cord 21 around the cord pulley 20. The power spring 34 is engaged with a cord pulley 30 that can rotate to wind and pull out the operating cord 31. The power spring 34 urges the cord pulley 30 in a winding direction -R2 so as to wind the operating cord 31 around the cord pulley 30.

The spiral spring 24 has two engagement portions 241, 242. The engagement portions 241, 242 are provided at each end of the spiral spring 24 in the circumferential direction. The engagement portion 241 is formed at the outer end of the spiral spring 24 in the radial direction. The engagement portion 241 is folded back outward along the pull-out direction +R1. The engagement portion 242 is formed at the inner end of the spiral spring 24 in the radial direction. The engagement portion 242 is folded back inward in the pull-out direction +R1.

The spiral spring 34 has two engagement portions 341, 342. The engagement portions 341, 342 are provided at each end of the spiral spring 34 in the circumferential direction. The engagement portion 341 is formed at the outer end of the spiral spring 34 in the radial direction. The engagement portion 341 is folded back outward along the pull-out direction +R2. The engagement portion 342 is formed at the inner end of the spiral spring 34 in the radial direction. The engagement portion 342 is folded back inward in the pull-out direction +R2.

The storage recesses 131, 132 are defined by walls 135, 136 that protrude from the inner plate 130 toward the cover 12. Slits 137, 138 are formed in the walls 135, 136, respectively. The slit 137 of the wall 135 is formed in the wall 135 on the lower side D of the storage recess 131 in the vertical direction UD. The slit 138 of the wall 136 is formed in the wall 136 on the upper side U of the storage recess 132 in the vertical direction UD.

The engaging portions 241, 341 of the spiral springs 24, 34 are engaged with the walls 135, 136 at the slits 137, 138 of the storage recesses 131, 132, respectively. The engaging portion 242 of the spiral spring 24 is engaged with the cord pulley 20 at the slit 232 in the rod-shaped portion 231 of the cord pulley 20. The engaging portion 342 of the spiral spring 34 is engaged with the cord pulley 30 at the slit 332 in the rod-shaped portion 331 of the cord pulley 30.

The one-way clutch devices 40, 50 are provided between the cord pulleys 20, 30 and the clutch units 6, 7 along the axes x1, x2, respectively, and transmit rotational force to the clutch units 6, 7. The one-way clutch devices 40, 50 are provided on the clutch unit 6, 7 side of the cord pulleys 20, 30 in the longitudinal direction LR (see FIG. 3B). The one-way clutch devices 40, 50 are inserted into the cord pulleys 20, 30, respectively, and can rotate integrally with the cord pulleys 20, 30.

The one-way clutch device 40 transmits the rotational force only in the specified rotational direction +R1 to the downstream clutch unit 6 using the output transmitted from the cord pulley 20. The one-way clutch device 50 transmits the rotational force only in the specified rotational direction +R2 to the downstream clutch unit 7 using the output transmitted from the cord pulley 30.

The one-way clutch device 40, 50 has a housing 41, 51 and a one-way clutch 46, 56 (see FIG. 3B). Note that the housings 41, 51 have the same configuration, so the following description will be given of the configuration of the housings 41, 51 in the same drawing.

Figure 7A is a perspective view of the one-way clutch device 40;50 as viewed from the right side R. Figure 7B is a perspective view of the one-way clutch device 40;50 as viewed from the left side L. The housing 41;51 is formed in a cylindrical shape with one end that is inserted into the cord pulley 20;30 closed. The housing 41;51 engages with the inner peripheral surface of the cord pulley 20;30 at its outer peripheral surface. The housing 41;51 is formed as an insertion member that is inserted into the cord pulley 20;30. The housing 41;51 has three stepped portions 411-414; 511-514 with different outer diameters.

In the direction of insertion into the cord pulley 20;30, the steps 411;511, 412;512, 413;513, and 414;514 are provided in this order. The outer diameter of the housing 41;51 increases in the order of the steps 411;511, 412;512, 413;513, and 414;514.

The step portion 412; 512 has two protrusions 416; 516 on its outer circumferential surface as engagement portions. The two protrusions 416; 516 are provided at positions facing each other in the radial direction. The protrusions 416; 516 extend along the axis x1; x2 on the outer circumferential surface of the step portion 412; 512 and protrude in a direction away from the axis x1; x2. The outer diameter of the protrusions 416; 516 is approximately the same as the outer diameter of the step portion 413; 513. The one-way clutch device 40; 50 engages with the circumferential surface of the protrusions 228; 328 of the code pulley 20; 30 in the rotational directions ±R1; ±R2 on the surface of the protrusions 416; 516 facing in the circumferential direction.

The housing 41; 51 has three protrusions 419; 519 on its inner circumferential surface. The protrusions 419; 519 are provided at equal intervals on the inner circumferential surfaces of the step portions 413; 513, 414; 514. The protrusions 419; 519 extend along the axis x1; x2 on the inner circumferential surface and protrude in a semicircular shape from the inner circumferential surface toward the axis x1; x2. The protrusions 419; 519 engage with the one-way clutches 46; 56 described below.

The one-way clutch 46; 56 engages with the inner peripheral surface of the housing 41; 51 at its outer peripheral surface. The one-way clutch 46; 56 is formed in a disk shape. The one-way clutch 46; 56 is housed in the housing 41; 51. The one-way clutch 46; 56 has a hole 461; 561 and three recesses 462; 562 on its outer peripheral surface. A drive shaft 611; 711 of the clutch unit 6; 7, which will be described later, is inserted into the hole 461; 561 of the one-way clutch 46; 56 so as not to rotate relative to the housing.

The recesses 462 extend along the axis x1 on the outer circumferential surface and are provided at equal intervals in the circumferential direction. The recesses 462 are semicircular recesses from the outer circumferential surface toward the axis x1. The one-way clutch 46 engages with the protrusion 419 of the housing 41 at the recesses 462 so as not to rotate relative to the housing 41.

When the one-way clutch 46; 56 is inserted into the housing 41; 51, the recessed portion 462; 562 of the one-way clutch 46; 56 engages with the protruding portion 419; 519 of the housing 41; 51 in the circumferential direction. This prevents the one-way clutch 46; 56 from rotating relative to the housing 41; 51. The one-way clutch 46; 56 transmits only the rotation in the pull-out direction +R1; +R2 of the operating cord 21; 31 to the lifting shaft 112b; 113b via the clutch unit 6; 7. The one-way clutch 46; 56 is press-fitted into the housing 41; 51, so that it can rotate integrally with the housing 41; 51.

The clutch units 6 and 7 are connected to the case 11 of the pulley operation drive units 2 and 3 at the side wall portion 112 opposite the cover 12. The clutch units 6 and 7 are connected to the one-way clutch devices 40 and 50 of the pulley operation drive units 2 and 3, respectively.

The clutch units 6, 7 can be switched between a transmission state (when performing a lifting operation) in which the rotational force of the cord pulleys 20, 30 is transmitted to the downstream lifting shafts 112b, 113b, and a non-transmission state (when not performing a lifting operation) in which the rotational force is not transmitted to the downstream lifting shafts 112b, 113b. In the non-transmission state of the clutch units 6, 7, the regulating members 211, 311 are in contact with the case 11 of the operating device 1.

Figure 8 is a diagram for explaining the configuration of the regulating member. The regulating members 211, 311 have the same configuration, so below, the configuration of the regulating members 211, 311 will be explained using the same figure. The regulating members 211, 311 are attached to the winding cords 21a, 31a and the gripping cords 21b, 31b, and come into contact with the case 11 when the front curtain 102 and the rear curtain 103 are not being raised or lowered, thereby restricting the winding cords 21a, 31a from being wound into the case 11.

The restricting member 211; 311 has a joint cover portion 212; 312 and a joint portion 213; 313. The tip of the joint portion 213; 313 is inserted into the joint cover portion 212; 312. The inner peripheral surface of the joint cover portion 212; 312 and the outer peripheral surface of the joint portion 213; 313 engage with each other to form the restricting member 211; 311.

When the restricting member 211; 311 is attached to the winding cord 21a, 31a and the gripping cord 21b, 31b, the tip 214; 314 of the joint cover part 212; 312 located on the case 11 side is in contact with the cord guide member 115; 116 when the front curtain 102 is not being raised or lowered.

The joint cover part 212; 312 is formed as a substantially conical cylindrical member from an elastic material such as rubber. The joint cover part 212; 312 may be formed from any material that is elastically deformable. The joint cover part 212; 312 is closed on the side that contacts the case 11 and is open on the base end side.

The joint part 213; 313 is a conical columnar member formed of, for example, rubber, synthetic resin, etc. The joint part 213; 313 has a hollow columnar part 215; 315 and a bottom part 217; 317. The joint part 213; 313 is inserted into the columnar part 215; 315 from the base end side of the joint cover part 212; 312.

The bottom 217; 317 is integrally formed with the columnar portion 215; 315 on the side opposite the tip of the columnar portion 215; 315. The bottom 217; 317 is formed in a circular shape in a plan view and has a larger diameter than the columnar portion 215; 315. The outer diameter of the bottom 217; 317 is approximately the same as the outer diameter of the base end side of the joint cover portion 212; 312.

The winding cord 21a; 31a extending from the case 11 is inserted into the restricting member 211; 311 from the tip side of the joint cover portion 212; 312 and the joint portion 213; 313, and has a knot at the end. This knot prevents the winding cord 21a; 31a from coming out of the restricting member 211; 311.

The gripping cord 21b; 31b is inserted into the restricting member 211; 311 on the side opposite to the end connected to the operating grip 163; 173, and has a knot at the end. This knot prevents the gripping cord 21b; 31b from coming off the restricting member 211; 311.

Next, we will explain how to attach the restricting members 211, 311 to the winding cords 21a, 31a. Figure 9 shows the winding cords 21a, 31a in the pulled-out state.

As described above, the cord pulleys 20, 30 to which one end of the winding cords 21a, 31a is fixed are biased in the winding directions -R1, -R2 by the spiral springs 24, 34. Therefore, when the winding cords 21a, 31a are pulled out, a force acts on the winding cords 21a, 31a to pull them into the case 11.

A slit 91 is formed in the case 11 of the operating device 1 in the first embodiment. The width of the slit 91 is set so as to clamp the winding cords 21a, 31a, so that the winding cords 21a, 31a pulled out from the case 11 can be inserted into the slit 91 so as to be wound from the bottom D and the left side L, thereby locking the winding cords 21a, 31a to the case 11. This allows the winding cords 21a, 31a to maintain the length pulled out to the outside of the case 11 against the force of the spiral springs 24, 34 in the winding directions -R1, -R2.

When attaching the restricting members 211, 311, the winding cords 21a, 31a are not pulled back into the case 11 because they are locked in the slits 91. Therefore, the worker can use both hands only to attach the restricting members 211, 311 to the winding cords 21a, 31a, for example, improving workability.

In addition, the task of connecting the gripping cords 21b, 31b to the restricting members 211, 311 can be easily performed when the winding cords 21a, 31a are fully pulled out from the case 11.

Figure 10 is a diagram showing the state in which the operating device 1 according to the first embodiment is stored. For example, when storing the operating device 1, the winding cords 21a and 31a can be engaged with the slits 91, and the restricting members 211 and 311 can be stored in the left-right direction LR, rather than in the up-down direction UD. This allows the operating device 1 to be stored in a compact manner in the up-down direction UD.

The position of the slit 91 is not particularly limited, and may be formed, for example, in the lower side D of the peripheral wall portion 111 in the front-rear direction FB, or may be formed across the peripheral wall portion 111 and the cover 12 in the longitudinal direction LR.

<Embodiment 2>
The following describes an operating device 1A according to embodiment 2. The following mainly describes the parts that are different from the operating device 1 according to embodiment 1. Note that the same reference numerals are used to denote members that have the same configuration as the operating device 1 according to embodiment 1.

In the second embodiment, two locking portions 90 are provided on the cover 12A of the container 10. Each locking portion 90 is formed by a protrusion 93 and a slider 94 provided on the cover 12A of the container 10. The protrusion 93 is formed integrally with the container 10. The slider 94 is attached to the cover 12A so as to be slidable toward and away from the protrusion 93. A detailed explanation is given below.

Figure 11A is an exploded perspective view of the container 10 in embodiment 2 as viewed from diagonally below side D. Figure 11B is a perspective view of the cover 12A in embodiment 2 as viewed from diagonally below side D. Figure 11C is a plan view of the cover 12A as viewed from below side D.

The two locking portions 90 are provided on the front side F and rear side B at a predetermined distance in the front-to-rear direction FB. One locking portion 90 has a protrusion 93 and a slider 94, is provided on the front side F relative to the other locking portion 90, and locks the winding cord 21a. The other locking portion 90 has a protrusion 93 and a slider 94, is provided on the rear side B relative to the one locking portion 90, and locks the winding cord 31a.

When the cover 12A is attached to the case 11, each locking portion 90 is provided on a protruding portion 12a that protrudes from the inner surface of the lower side D of the cover 12A. When the cover 12A is attached to the case 11, the protruding portion 12a forms a wall portion of the lower side D in combination with the peripheral wall portion 111 of the case 11. The protruding portion 12a has two protrusions 93 and two openings 12b. Each opening 12b is provided near the protruding portion 93.

The protrusion 93 protrudes downward D from the outer surface of the overhang 12a, and is formed integrally at each edge in the front-to-rear direction FB. The protrusion 93 has a plurality of recesses 93a and protrusions 93b on opposing surfaces. The recesses 93a and protrusions 93b are continuously arranged in a wavy pattern. The recesses 93a and protrusions 93b are each formed in a triangular or approximately triangular shape in a plan view.

The opening 12b accommodates a slider 94, which will be described later. Two recesses 12c, 12d are formed on each of a pair of inner surfaces of the opening 12b along the front-rear direction FB. The recesses 12c, 12d are each formed in a semicircular shape. The recesses 12c, 12d extend in the thickness direction of the protruding portion 12a.

The recess 12c is located on the side of the protruding portion 93 relative to the recess 12d, and engages with the slider 94 described below to maintain the slider 94 in close proximity or contact with the protruding portion 93. The recess 12d engages with the slider 94 described below to maintain the slider 94 spaced apart from the protruding portion 93.

The slider 94 is attached to each opening 12b of the protruding portion 12a. FIG. 12A is a perspective view of the slider 94 seen from the upper side U. FIG. 12B is a plan view of the slider 94 seen from the lower side D. The slider 94 has a main body portion 94a and two hook portions 94b.

When the slider 94 is attached to the opening 12b, the main body 94a is located outside the container 10. The main body 94 has a plurality of recesses 94c and protrusions 94d on the surface facing the protrusion 93. The recesses 94c and protrusions 94d are continuously arranged in a wavy pattern. The recesses 94c and protrusions 94d are each formed in a triangular or approximately triangular shape in a plan view.

When the slider 94 is close to the protrusion 93, the recess 94c of the slider 94 is close to or in contact with the convex portion 93b of the protrusion 93, and the convex portion 94d of the slider 94 is close to or in contact with the recess 93a of the protrusion 93.

The hook portion 94b is provided approximately midway between the surface of the body portion 94a on which the recessed portion 94c and the protruding portion 94d are provided and the surface opposite to this surface. The hook portion 94b extends beyond the body portion 94a in one direction.

The hook portion 94b is inserted into the opening 12b from the underside D of the overhang portion 12a and engages with the overhang portion 12a on the opposite side. The tips of the hook portions 94b have extensions 94e that extend in opposite directions. The surfaces of the extensions 94e of each hook portion 94b that face different sides are inclined, and these inclined surfaces guide the insertion of the slider 94 into the opening 12b.

Each hook portion 94b has a protruding portion 94f that extends along the extending direction on the surface facing the different side. The protruding portion 94f is formed in a semicircular shape and selectively engages with the recesses 12c, 12d in the opening 12b.

Next, we will explain how to attach the restricting members 211, 311 to the winding cords 21a, 31a. Figure 13 shows the winding cords 21a, 31a in the pulled-out state.

As described above, the cord pulleys 20, 30 to which one end of the winding cord 21a, 31a is fixed are biased in the winding directions -R1, -R2 by the spiral springs 24, 34. Therefore, when the winding cord 21a, 31a is pulled out, the winding cord 21a, 31a rewinds into the case 11.

In the second embodiment, the container 10 has a locking portion 90 formed by a protrusion 93 and a slider 94. The winding cords 21a, 31a pulled out from the case 11 are guided between the protrusion 93 and the slider 94, and the slider 94 is moved toward the protrusion 93, thereby locking the winding cords 21a, 31a to the container 10. This allows the winding cords 21a, 31a to maintain the length pulled out to the outside of the case 11 against the force of the spiral springs 24, 34 in the winding directions -R1, -R2.

When attaching the restricting members 211, 311, the winding cords 21a, 31a are not pulled back into the case 11 because they are engaged between the protrusions 93 and the sliders 94. Therefore, the worker can use both hands only to attach the restricting members 211, 311 to the winding cords 21a, 31a, for example, improving workability. The operating device according to the second embodiment can also achieve the same effects as the operating device 1 according to the first embodiment.

By engaging the recess 93a of the protrusion 93 with the protrusion 94d of the slider 94, and the protrusion 93b of the protrusion 93 with the recess 94c of the slider 94, the area (length) of the winding cord 21a, 31a that is gripped is larger than when it is gripped in a straight line. The winding cord 21a, 31a can be kept more firmly locked, and the task of connecting the gripping cord 21b, 31b to the restricting member 211, 311 can be easily performed when the winding cord 21a, 31a is fully pulled out from the case 11.

In addition, as the slider 94 slides along the opening 12b, the convex ridges (convex portions) 94f of the slider 94 can selectively engage with the concave portions 12c and 12d of the opening 12b. This prevents the slider 94 from unintentionally moving away from the protrusion 93.

<Third embodiment>
The following describes an operating device 1B according to embodiment 3. The following mainly describes the parts that are different from the operating device 1 according to embodiment 1. Note that the same reference numerals are used to denote members that have the same configuration as the operating device 1 according to embodiment 1.

In the third embodiment, the locking portion 90 is formed by a rod-shaped protrusion 95 formed to protrude from the outer surface of the lower side B of the case 11B of the container 10. A detailed explanation will be given below. Figure 14A is a perspective view of the case 11B in the third embodiment as seen from the lower side D. Figure 14B is a view of the case 11B in the third embodiment as seen from the front side F.

In the third embodiment, the case 11B has two rod-shaped protrusions 95. The protrusions 95 are integrally formed with the case 11B on the side of the peripheral wall 111 facing the lower side D. The two protrusions 95 are provided at a predetermined distance from each other in the front-rear direction FB, and are provided on the side of the side wall 112 in the left-right direction LR.

The protrusion 95 has a rod-shaped portion 95a and a head portion 95b. The rod-shaped portion 95a is provided so as to protrude downward from the case 11B to the lower side D. The winding cords 21a and 31a are wound around each rod-shaped portion 95a. The head portion 95b is provided on the tip side of the rod-shaped portion 95a. The head portion 95b has an outer shape larger than that of the rod-shaped portion 95a.

Next, a method for attaching the restricting members 211, 311 to the winding cords 21a, 31a will be described. Figure 15 shows the winding cords 21a, 31a in the pulled-out state. As described above, the cord pulleys 20, 30 to which one end of the winding cords 21a, 31a is fixed are biased in the winding directions -R1, -R2 by the spiral springs 24, 34. Therefore, when the winding cords 21a, 31a are pulled out, the winding cords 21a, 31a rewind into the case 11B.

In the third embodiment, the container 10 has a locking portion 90 formed by a protrusion 95. The winding cords 21a, 31a pulled out from the case 11B can be wound around the rod-shaped portion 95a of the protrusion 95 to lock the winding cords 21a, 31a to the container 10. This allows the winding cords 21a, 31a to maintain the length pulled out to the outside of the case 11 against the force of the spiral springs 24, 34 in the winding directions -R1, -R2.

Therefore, the worker can use both hands only to attach the restricting members 211, 311 to the winding cords 21a, 31a, for example, improving workability. The operating device according to the third embodiment can also achieve the same effect as the operating device 1 according to the first embodiment.

In addition, a slit (not shown) smaller than the thickness of the winding cord 21a, 31a may be formed in the head portion 95b. By inserting the winding cord 21a, 31a beyond the portion wound around the rod-shaped portion 95a into the slit, the winding cord 21a, 31a can be more securely locked to the case 11B.

<Fourth embodiment>
The following describes an operating device 1C according to embodiment 4. The following mainly describes the parts that are different from the operating device 1 according to embodiment 1. Note that the same reference numerals are used to designate members that have the same configuration as the operating device 1 according to embodiment 1.

In the fourth embodiment, the operating device 1C has a stopper 96 that can be fixed at any position on the winding cords 21a and 31a and can move in the extension direction of the winding cords 21a and 31a. Figure 16 is a perspective view showing the operating device 1C according to the fourth embodiment.

The stopper 96 is attached to the winding cord 21a, 31a on the opposite side of the restricting member 211, 311 from the gripping cord 21b, 31b.

Figure 17 is a perspective view showing the stopper 96. The stopper 96 is a cylindrical member made of a material such as resin or rubber. The diameter of the stopper 96 is larger than the holes that guide the winding cords 21a and 31a in the cord guide members 115 and 116.

The stopper 96 has an insertion hole 96a and a slit 96b. The insertion hole 96a extends along an axis x3 that passes through the center of the stopper 96. The insertion hole 96a is circular or nearly circular in plan view, and its diameter is smaller than the thickness or diameter of the winding cords 21a, 31a. The stopper 96 presses the winding cords 21a, 31a from the circumferential direction at the insertion hole 96a. This prevents the stopper 96 from unintentionally moving along the winding cords 21a, 31a.

The slit 96b extends along the axis x3 from the peripheral surface of the stopper 96 to the insertion hole 96a. The width of the slit 96b is greater than the thickness or diameter of the winding cord 21a, 31a.

Next, a method for attaching the restricting members 211, 311 to the winding cords 21a, 31a will be described. Figure 18 shows the winding cords 21a, 31a in the pulled-out state. As described above, the cord pulleys 20, 30 to which one end of the winding cords 21a, 31a is fixed are biased in the winding directions -R1, -R2 by the spiral springs 24, 34. Therefore, when the winding cords 21a, 31a are pulled out, the winding cords 21a, 31a rewind into the case 11D.

In the fourth embodiment, the winding cords 21a, 31a are provided with stoppers 96. The stoppers 96 can be freely fixed in position on the winding cords 21a, 31a, so that when the winding cords 21a, 31a are fully pulled out from the case 11D, the stoppers 96 can be moved to a position where they come into contact with the cord guide members 115, 116 of the case 11D, thereby maintaining the winding cords 21a, 31a in a state where a predetermined length is extended from the container 10.

Therefore, the worker can use both hands only to attach the restricting members 211, 311 to the winding cords 21a, 31a, for example, improving workability. The operating device according to the fourth embodiment can also achieve the same effect as the operating device 1 according to the first embodiment.

After the restricting members 211, 311 are attached to the winding cords 21a, 31a and the gripping cords 21b, 31b are connected to the restricting members 211, 311, the stopper 96 is moved to a position where it comes into contact with the tip of the restricting member 211, 311. This prevents the stopper 96 from coming into contact with the case 11D and the restricting members 211, 311 from directly colliding with the case 11D and generating an impact noise when the winding cords 21a, 31a are wound up.

A known cord stopper may be used as the stopper 96.

＜Other＞
Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and includes all aspects included in the concept of the present invention and the scope of the claims. In addition, each configuration may be appropriately and selectively combined so as to achieve at least a part of the above-mentioned problems and effects. In addition, for example, the shape, material, arrangement, size, etc. of each component in the above-mentioned embodiments may be appropriately changed depending on the specific use mode of the present invention. For example, the shading material of the solar shading device 100 in the above-mentioned embodiments 1 to 4 is arranged in the front-rear direction FB, but the operating device according to the present embodiments 1 to 4 can also be applied when the shading material is an upper curtain and a lower curtain connected to each other vertically in the lifting direction UD.

The shielding material may be a single sheet, in which case the operating device may have a set of pulley operating drive unit and clutch unit.

1, 1A, 1B, 1C... Operation device 10... Container 11... Case 12, 12A... Cover 2, 3... Pulley operation drive unit 20, 30... Cord pulley 21, 31... Operation cord 21a, 31a... Winding cord 21b, 31b... Grip cord 24, 34... Spiral spring (spring)
90: locking portion 91: slit 93: protrusion 94: slider 95: protrusion 96: stopper 100: solar radiation shading device 101: head rail 102: front curtain (shading material),
103... Rear curtain (shielding material)

Claims (7)

The solar shading device is used for lifting and lowering a shading material supported so as to be freely raised and lowered relative to a lifting shaft supported rotatably within a head rail of the solar shading device,
A winding cord for use in raising and lowering the shielding material;
a cord pulley to which one end of the winding cord is fixed and which is rotatable so as to be able to wind and pull out the winding cord;
a spring that engages with the cord pulley and constantly urges the take-up cord in a direction in which the take-up cord is wound around the cord pulley;
A container for housing the cord pulley;
Equipped with
The operating device for a solar shading device, characterized in that the container has a locking portion that is capable of engaging with the winding cord when the winding cord is pulled out and prevents the winding cord from rewinding into the container against the biasing force of the spring. The operating device for a solar shading device according to claim 1, characterized in that the locking portion is a slit formed in the container so that the winding cord can be clamped. the locking portion includes a protrusion formed on the container, and a slider attached to the container so as to be slidable toward and away from the protrusion,
The operating device for a solar shading device according to claim 1, characterized in that the locking portion clamps the winding cord between the protrusion and the slider when the slider is close to the protrusion, thereby preventing the winding cord from rewinding into the container. the protrusion has a recess and a protrusion on a surface facing the slider,
The operating device for a solar shading device according to claim 3 , wherein the slider has a convex portion that engages with the concave portion of the protruding portion, and a concave portion that engages with the convex portion of the protruding portion. the container has an opening for slidably holding the slider,
A pair of recesses are formed in the opening at positions opposite to each other and intersecting the sliding direction,
A pair of protrusions engageable with the pair of recesses are formed on the portion of the slider held in the opening,
The operating device for a solar shading device as described in claim 3 or 4, characterized in that when the pair of recesses formed in the opening and the pair of protrusions formed on the portion of the slider held in the opening are engaged, the slider and the protrusions are maintained in a close proximity state. The locking portion is a rod-shaped protrusion formed to protrude from an outer surface of the container,
The operating device for a solar shading device according to claim 1, characterized in that the winding cord is prevented from being wound back into the container by winding the winding cord around an outer circumferential surface of the protrusion. The solar shading device is used for lifting and lowering a shading material supported so as to be freely raised and lowered relative to a lifting shaft supported rotatably within a head rail of the solar shading device,
A winding cord for use in raising and lowering the shielding material;
a cord pulley to which one end of the winding cord is fixed and which is rotatable so as to be able to wind and pull out the winding cord;
a spring that engages with the cord pulley and constantly urges the take-up cord in a direction in which the take-up cord is wound around the cord pulley;
A container for housing the cord pulley;
a stopper that can be fixed at an arbitrary position on the winding cord and that can be moved in an extending direction of the winding cord;
Equipped with
The stopper is fixed at a position spaced a predetermined distance from the end of the winding cord when the winding cord is pulled out, and abuts against the container to prevent the winding cord from rewinding into the container due to the biasing force of the spring.

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