JP7018909B2 - Sunlight shielding device - Google Patents

Description

The present invention relates to an intermediate rail and a head box in a solar shading device.

Solar shielding devices that raise and lower the shielding material by operating operation codes such as ball chains include horizontal blinds, roll blinds that raise and lower the screen, and raised curtains and pleated screens that raise and lower the curtain fabric.

For example, a pleated screen suspends and supports a screen that can be bent in a zigzag shape in the vertical direction from a head box, and raises and lowers the screen by an operating device to appropriately adjust the amount of lighting.

Then, a configuration is disclosed in which the center of gravity of the bottom rail attached to the lower end of the screen is located on the rear end side of the pleated screen (see, for example, Patent Document 1). This makes it possible to configure a pleated screen that can prevent the bottom rail from tilting.

On the other hand, as one kind of such pleated screen, the screen is composed of an upper screen and a lower screen of different fabrics, and the lower edge of the upper screen and the upper edge of the lower screen are attached to the intermediate rail, and the intermediate rail and the bottom are attached. Some rails are suspended and supported by independent lifting cords.

In such a pleated screen, the intermediate rail and the bottom rail can be raised and lowered separately. Then, when the intermediate rail is pulled up to the upper limit and the bottom rail is lowered to the lower limit, external light can be blocked by, for example, a lower screen having a high light-shielding property. By lowering the intermediate rail and the bottom rail to the lower limit, for example, a translucent upper screen can partially take in external light.

In addition, if the bottom rail is lowered to the lower limit and the intermediate rail is pulled up to the intermediate position, it is possible to take in a part of the outside light only from the upper part of the window. Further, when the intermediate rail and the bottom rail are pulled up to the upper limit, the intermediate rail and the bottom rail are opened and can take in outside light.

Generally, the intermediate rail main body, the head box main body, or the bottom rail main body of the pleated screen is formed of a metal material such as an aluminum material in order to maintain its strength. Then, the upper cover of the resin material is often attached to the head box main body formed of the metal material.

Japanese Patent No. 4897552

As disclosed in Patent Document 1, by locating the center of gravity of the bottom rail on the rear end side of the pleated screen, it is possible to prevent the bottom rail from tilting and improve the aesthetic appearance.

Similarly, even in a pleated screen in which the lower edge of the upper screen and the upper edge of the lower screen are attached to the intermediate rail and the intermediate rail and the bottom rail are suspended and supported by independent elevating cords, the intermediate rail is prevented from tilting. To make it possible, it is effective to position the center of gravity of the intermediate rail on the rear end side of the pleated screen.

On the other hand, if the center of gravity of the intermediate rail is positioned on the rear end side of the pleated screen, when the upper screen and the lower screen are folded, only the portion of the intermediate rail looks like a dent, which may spoil the aesthetic appearance.

Therefore, a technique is desired in which the center of gravity of the entire intermediate rail is positioned on the rear end side of the pleated screen and the aesthetic appearance is improved even when the upper screen and the lower screen are folded.

Further, as described above, the intermediate rail main body, the head box main body, or the bottom rail main body of the pleated screen is formed of a metal material such as an aluminum material in order to maintain its strength. In particular, the intermediate rails and bottom rails are also intended to secure the weight required for descent. The top cover of the resin material may be attached to the headbox body made of a metal material such as aluminum, but the shape-related changes over time are attached to the headbox body, which is resistant to changes over time. Since the upper cover made of a resin material that is vulnerable to the problem is attached, the conventional technique requires that the upper cover be in a form that can be easily replaced. Therefore, the management burden increases for the user, which is not preferable.

Further, in the form of attaching the end portion of the operation cord to the intermediate rail main body, a technique considering safety when a foreign matter is caught in the folded operation cord is desired.

An object of the present invention is to provide a solar shielding device for suspending and supporting a shielding material from a headbox in view of the above-mentioned problems.

The solar radiation shielding device of the present invention is a solar radiation shielding device that suspends and supports a shielding material from a head box, and has a rail under or in the middle of the shielding material, and the rail body and a cover are separated from each other. When the end of the operation cord which is possibly fitted and has a connecting member in the middle of the cover which is separated by a tension of a predetermined load or more is attached to form an endless shape, and the connecting member is separated by a tension of a predetermined load or more. When the operation cord is configured to be non-endless and the tension for separating the connection of the connecting member acts in the direction of disengaging the cover and the rail body via the operation cord, the operation cord is said to be disengaged. The fitting force between the cover and the rail body is characterized in that the connecting member is disconnected and separated prior to the separation of the fitting of the cover from the rail body.

According to the present invention, in a solar shading device using an intermediate rail, in a form in which the end of the operation cord is attached to the intermediate rail body, safety is taken into consideration when a foreign object is caught in the folded operation cord. can do.

It is a front view which shows the schematic structure in the solar radiation shielding device of one Embodiment by this invention. It is a side view which shows the schematic structure in the fully closed state in the solar radiation shielding device of one Embodiment by this invention. It is a side view which shows the schematic structure in the fully open state in the solar radiation shielding device of one Embodiment by this invention. It is an exploded perspective view of the intermediate rail in the solar radiation shielding device of one Embodiment by this invention. (A) and (b) are plan views showing an example of an intermediate rail main body in the solar radiation shielding device of one embodiment according to the present invention according to the present invention. (A), (b), (c), and (d) are front views showing an example of an intermediate rail main body in the solar radiation shielding device according to the present invention according to the present invention. It is an exploded perspective view of the head box in the solar radiation shielding device of one Embodiment by this invention. (A) and (b) are exploded perspective views showing another example of the intermediate rail in the solar radiation shielding device of one embodiment according to the present invention. It is a side view which shows the schematic structure in the fully closed state in the solar radiation shielding device of another embodiment by this invention. It is an exploded perspective view of the intermediate rail in the solar radiation shielding device of another embodiment by this invention. (A) and (b) are a side view showing a schematic structure of the solar radiation shielding device of another embodiment according to this invention, and a perspective view of a connecting member (safety joint), respectively.

Hereinafter, the solar shading device according to the present invention will be described with reference to the drawings. In the specification of the present application, with respect to the front view of the solar radiation shielding device (pleated screen) shown in FIG. 1, the upper part in the drawing and the lower part in the drawing are upward according to the hanging direction of the shielding material (screen in this example). It is defined as (or upper side) and downward (or lower side), and the left direction in the figure is defined as the left side of the pleated screen, and the right direction in the figure is defined as the right side of the pleated screen. When the side in which the front view of FIG. 1 is visually recognized is the front side and the front-rear direction of the solar radiation shielding device (pleated screen) is referred to, the direction perpendicular to the illustrated surface in the front view of FIG. 1 is referred to.

(Overall configuration of solar shading device)
FIG. 1 is a front view showing a schematic configuration of a solar radiation shielding device according to an embodiment of the present invention. FIG. 2 is a side view showing a schematic configuration of the solar radiation shielding device according to the present invention in a fully closed state.

The pleated screen shown in FIGS. 1 and 2 suspends and supports a screen that can be bent in a zigzag shape in the vertical direction from the head box 1, and raises and lowers the screen by an operating device 3 to appropriately adjust the amount of lighting. Is. The head box 1 is fixed to the mounting surface via the mounting bracket 2. Details of the head box 1 according to the present invention will be described later.

In the pleated screen of this example, the screen is composed of an upper screen 11U and a lower screen 11L of different fabrics, and the lower end edge of the upper screen 11U and the upper end edge of the lower screen 11L are attached to the intermediate rail 7 to form the intermediate rail 7. The bottom rail 8 is suspended and supported by independent lifting cords 15 and 16, respectively. Details of the intermediate rail 7 according to the present invention will be described later.

Each of the screens 11U and 11L is formed by providing joint pieces 11b on the upper and lower edges of the fabric provided with the creases 11a, and joining the joint pieces 11b to the joint pieces 11b of the other fabric by means such as welding. There is.

Then, the elevating cords 15 and 16 hanging from the head box 1 are inserted through the joint piece of the screen 11U, and the lower end of the elevating cord 15 is attached to the intermediate rail 7. An elevating cord 16 is inserted through the joint piece of the screen 11L, and the lower end of the elevating cord 16 is attached to the bottom rail 8.

Therefore, the screens 11U and 11L can be extended downward or the screens 11U and 11L can be folded upward by moving the bottom rail 8 up and down.

Then, the operation code 9 is composed of, for example, an endless ball chain, and is wound around a pulley 10 rotatably accommodated in the operation device 3. A plurality of recesses into which the ball portion of the ball chain of the operation code 9 is fitted are formed on the outer peripheral surface of the pulley 10.

A transmission gear composed of a plurality of gears is connected to the pulley 10 in the head box 1, and the transmission gear is connected to each transmission clutch (not shown). Therefore, the rotation of the pulley 10 is transmitted to the rotation drive shaft via each transmission clutch by this transmission gear.

The take-up shaft 5 is individually provided for each of the upper screens 11U and 11L, and is arranged in parallel in the head box 1. Further, each take-up shaft 5 of the upper screens 11U and 11L is also composed of two shafts. Then, the rotation of the rotation drive shaft of the upper screen 11U causes the winding shaft 5 rotatably supported in the head box 1 to rotate, and the rotation of the winding shaft 5 causes the lifting cord 15 to be wound and rewound to the upper part. The screen 11U is moved up and down. Similarly, the rotation of the rotary drive shaft for the lower screen 11L causes the take-up shaft 5 rotatably supported in the head box 1 to rotate, and the elevating cord 16 is taken up and rewound by the rotation of the take-up shaft 5. The screen 11L is raised and lowered by.

A stopper device 4 for controlling the rotation of the rotation drive shaft is arranged between the winding shafts 5 arranged on the left and right, and the stopper device 4 releases the operation code 9 after the bottom rail 8 is pulled up. , It functions to prevent the weight of the intermediate rail 7 and the bottom rail 8 from dropping.

Further, on the side of the stopper device 4, each rotation drive shaft for the upper screen 11U and the lower screen 11L is inserted into each governor device 6. The governor device 6 has a function of suppressing the rotation speed of the rotation drive shaft to a predetermined value or less, and suppressing the descent speed of the intermediate rail 7 and the bottom rail 8 when the weight is lowered to a predetermined speed or less.

In such a pleated screen, the intermediate rail 7 and the bottom rail 8 can be raised and lowered separately. Then, when the intermediate rail 7 is pulled up to the upper limit and the bottom rail 8 is lowered to the lower limit, external light can be blocked by, for example, the lower screen 11L having a high light-shielding property. When the intermediate rail 7 and the bottom rail 8 are lowered to the lower limit, for example, a translucent upper screen 11U can partially take in external light.

If the bottom rail 8 is lowered to the lower limit and the intermediate rail 7 is pulled up to the intermediate position, a part of the outside light can be taken in only from the upper part of the window. Further, when the intermediate rail 7 and the bottom rail 8 are pulled up to the upper limit, the intermediate rail 7 and the bottom rail 8 are opened and can take in outside light.

The pitch holding cord 17 is hung from the head box 1 and attached to the intermediate rail 7 behind the elevating cords 15 and 16, that is, on the outdoor side. Elevating cords 15 and 16 are inserted through a large number of annular support cords 17a provided on the pitch holding cords 17 at equal intervals. Then, when the intermediate rail 7 is lowered to extend the upper screen 11U, the joint piece of the upper screen 11U is supported by the support cord so that the folds of the upper screen 11U are held at substantially equal intervals.

As shown in FIG. 2, the elevating cord 16 is suspended and supported from the head box 1 at a position different from the hanging position of the elevating cord 15, and the elevating cord 16 is inserted into the joint piece 11b of the upper screen 11U. It is inserted into the hole, inserted into the intermediate rail 7, and inserted into the insertion hole provided in the joint piece 11b of the lower screen 11L. The bottom rail 8 is suspended and supported at the lower end of the elevating cord 16.

Further, a pitch holding cord 17 hanging from the intermediate rail 7 is attached to the bottom rail 8 behind the elevating cord 16, that is, on the outdoor side. An elevating cord 16 is inserted through a large number of annular support cords 17b provided on the pitch holding cord 17 at equal intervals. Then, when the bottom rail 8 is lowered to extend the lower screen 11L, the joint pieces are supported by the support cord so that the folds of the lower screen 11L are held at substantially equal intervals.

(Composition of intermediate rail)
Next, the details of the intermediate rail 7 of the embodiment according to the present invention will be described with reference to FIGS. 3 and 4. FIG. 3 is a side view showing a schematic configuration of the solar radiation shielding device according to the present invention in a fully open state. FIG. 4 is an exploded perspective view of the intermediate rail 7 in the solar radiation shielding device according to the present invention.

First, referring to FIG. 4, the intermediate rail 7 of this embodiment includes an intermediate rail main body 12 and a front cover 13. The intermediate rail body 12 is made of a metal material such as aluminum, and the front cover 13 is made of a resin material such as PVC, POM, PC, and ABS. Here, the intermediate rail main body 12 can be formed into a shape suitable for the application by extrusion molding, and the intermediate rail main body 12 can be formed into a shape suitable for the application by using a molding die.

The intermediate rail main body 12 is formed in a long shape over the entire length in the left-right width direction of the upper screen 11U and the lower screen 11L, and a holding hole 123 is formed on the upper surface thereof. The holding hole 123 is for attaching the lower end of the elevating cord 15 and allowing a holding member (not shown) for inserting the elevating cord 16 to be attached to the inside of the intermediate rail main body 12. , 16 are provided according to the number of installations.

The intermediate rail 7 is configured by fitting a substantially rectangular parallelepiped front cover 13 from the front (indoor side) of the intermediate rail main body 12 over the entire length in the left-right width direction. In this example, a bifurcated fitting protrusion 131 having an elastically deformable tip is provided on the outdoor side surface of the front cover 13, and the interior side surface of the intermediate rail main body 12 is provided with the bifurcated fitting protrusion 131. A fitting receiving portion 121 that fits with the bifurcated fitting protrusion 131 is formed. Then, in a state where the front cover 13 is fitted to the intermediate rail main body portion 12, as shown in FIG. 3, the position of the front cover 13 is a laminated state of the fabrics constituting the upper screen 11U and the lower screen 11L. It is configured to be a front wall that connects to the front edge, and can improve the aesthetics. The form for realizing such fitting is not limited to the above-mentioned bifurcated fitting protrusion 131 and the fitting receiving portion 121 that fits with the fitting protrusion 131, and other forms. But it may be.

Here, since the metal material generally has a higher specific gravity and higher strength than the resin material, the intermediate rail main body 12 that satisfies the function as the intermediate rail 7 is formed of the metal material and attached to the intermediate rail main body 12. By forming the front cover 13 with a resin material, the center of gravity of the entire intermediate rail 7 is mainly determined by the arrangement of the intermediate rail main body 12. As a result, as shown in FIGS. 2 and 3, the intermediate rail main body 12 is positioned on the rear end side of the solar radiation shielding device, so that the center of gravity of the entire intermediate rail 7 is positioned on the rear end side of the solar radiation shielding device. This makes it possible to suppress the tilting of the entire intermediate rail 7 while maintaining the above-mentioned improvement in aesthetic appearance.

On the other hand, metal materials are resistant to secular variation in shape, whereas resin materials are vulnerable to secular variation in shape. Therefore, the resin material front cover 13 can be obtained by simply fitting and attaching the bifurcated fitting protrusion 131 of the front cover 13 and the fitting receiving portion 121 of the intermediate rail main body 12. It expands and contracts (particularly, contracts) in the left-right width direction due to aging, which can spoil the aesthetic appearance.

Therefore, in the intermediate rail 7 of the present embodiment, on the contact surface of the intermediate rail main body 12 that comes into contact with the front cover 13, the vicinity of both ends in the left-right width direction (for example, from the end of the intermediate rail 7 in the left-right direction). Engagement protrusions 122R and 122L are formed at two locations above and below (at positions that are 1/5 or less of the width), respectively, and the front cover 13 is formed with the engagement protrusions 122R and 122L. At the corresponding positions, the engaging receiving portions 132R and 132L are formed by drilling holes at two upper and lower positions in the vicinity of both ends in the left-right width direction. Therefore, the engaging receiving portions 132R and 132L can be locked by the engaging protrusions 122R and 122L in the direction in which the front cover 13 does not contract.

In this way, with the bifurcated fitting protrusion 131 of the front cover 13 and the fitting receiving portion 121 of the intermediate rail main body 12 fitted and attached, the engaging protrusions 122R and 122L By configuring the engaging receiving portions 132R and 132L to engage with each other, it is possible to suppress a shape change that expands and contracts (particularly, contracts) due to the secular change of the front cover 13.

In this example, as shown in FIG. 5A, an example in which the engaging protrusions 122R and 122L of the intermediate rail main body 12 are formed by being cut and bent is described as a representative. As shown in 5 (b), for example, it may be formed by projecting in a convex shape.

Further, in this example, an example in which the engaging receiving portions 132R and 132L that engage with the engaging protrusions 122R and 122L are provided at two locations above and below near both ends in the left-right width direction has been described. It may be composed of a number, or it may be provided at a location and a number according to the application such as a length in the left-right width direction. For example, in addition to the configuration in which the engaging receiving portions 132R and 132L are provided at two locations on the upper and lower sides (see FIG. 6 (a)), the configurations are provided at one location on the upper side or one on the lower side (FIG. 6 (b), (FIG. 6 (b)). It can be in various forms, such as c)) or a configuration in which one or more locations are provided near the central portion in the left-right width direction (engagement receiving portion 132M illustrated in FIG. 6D). However, in order to suppress the shape change that expands and contracts (particularly, contracts) due to the secular change of the front cover 13, the engaging protrusions 122R and 122L and the engaging receiving portions 132R and 132L are respectively arranged in the left-right width direction. It is preferable to provide one or more locations near both ends.

As a result, in the solar radiation shielding device using the intermediate rail 7, the center of gravity of the intermediate rail 7 can be positioned on the rear end side of the solar radiation shielding device, and the aesthetic appearance of the upper screen 11U and the lower screen 11L when folded can be improved. can. Preferably, the intermediate rail body 12 is used as a metal material, and the intermediate rail 7 is configured so as to be locked and attached so as to suppress expansion and contraction (particularly, contraction) of the front cover 13 made of a resin material. It is possible to configure a strong solar shading device.

(Headbox configuration)
Next, the headbox 1 shown in FIGS. 2 and 3 will be described with reference to FIG. 7. FIG. 7 is an exploded perspective view of the head box 1 in the solar shading device according to the present invention. The main body 1a of the head box 1 of this example is configured in the form of an upper opening, and the upper cover 14 can be attached to the opening. Further, by attaching the upper cover 14 to the head box 1, it is possible to obtain a dustproof effect and a soundproof effect.

The main body 1a of the head box 1 is made of a metal material such as aluminum, and the upper cover 14 is made of a resin material. The main body 1a and the upper cover 14 of the head box 1 are formed in a long shape over the entire length in the left-right width direction of the upper screen 11U and the lower screen 11L. Therefore, as described above, there is a concern that the shape of the upper cover 14 may change due to aging (particularly, shrinkage).

Therefore, as shown in FIG. 7, on the insertion passage of the upper cover 14 in the main body portion 1a of the head box 1, the same engaging protrusions 101R and 101L as the above-mentioned engaging protrusions 122R and 122L are provided, and these are engaged. The upper cover 14 is provided with the same engaging receiving portions 141R and 141L as the engaging receiving portions 132R and 132L described above so as to engage with the combined protrusions 101R and 101L.

In this way, the head box 1 is configured so that the main body 1a of the head box 1 is made of a metal material and the upper cover 14 of the resin material is locked and attached so as to suppress expansion and contraction (particularly contraction). It is possible to configure a solar shading device that is resistant to aging.

The head box 1 can also have various forms as illustrated in FIGS. 5 and 6 described above, but the engaging protrusions 101R and 101L and the engaging receiving portions 141R and 141L have the left and right widths, respectively. It is preferable to provide one or more locations near both ends in the direction.

Further, although not shown, the bottom rail can also have a substantially rectangular parallelepiped shape as a whole having a front cover, similar to the intermediate rails 7 exemplified in FIGS. 4 to 6 described above. Alternatively, for the bottom rail, a cover may be used to close the opening as a dustproof effect (for example, Japanese Patent Publication No. 61-192096). When such a bottom rail is configured to have a bottom rail main body made of a metal material and a cover made of a resin material, the bottom rail main body may be similar to the example of the intermediate rail 7 described above. The contact surface that comes into contact with the cover has an engaging protrusion (corresponding to the above-mentioned engaging protrusions 101R and 101L), and the cover engages with the engaging protrusion (the above-mentioned engaging receiving portion). It can be configured to have (corresponding to the engaging receiving portions 141R, 141L).

Although the present invention has been described above with reference to examples of specific embodiments, the present invention is not limited to the examples of the above-described embodiments, and can be variously modified without departing from the technical idea. For example, in the above-mentioned example, an example in which the engaging protrusions 122R and 122L are provided on the intermediate rail main body 12 and engaged with the engaging receiving portions 132R and 132L of the front cover 13 has been described, but the intermediate rail main body 12 and the front cover have been described. It is possible to engage the engaging receiving portions 132R and 132L of the front cover 13 from both ends of the 13 in the left-right width direction.

For example, FIG. 8A is an example of using a cap 18 for locking each end of the intermediate rail main body 12 and the front cover 13 in the left-right width direction. Normally, the cap 18 is provided with locking portions 181, 182 that can lock each of the intermediate rail main body 12 and the front cover 13, but in addition to this, an elastically deformable tip portion is provided. A bifurcated engaging protrusion 183 is provided, which can be configured to engage the engaging receiving portions 132R and 132L of the front cover 13.

Alternatively, as shown in FIG. 8B, a bifurcated engaging protrusion 193 having an elastically deformable iron-shaped tip is engaged between the cap 18, the intermediate rail body 12, and the front cover 13. A locking member 19 having a stop portion 191 is provided, the engaging receiving portions 132R and 132L of the front cover 13 are engaged by the engaging protrusion 193, and the intermediate rail main body 12 is locked by the locking portion 191. can do. Further, the cap 18 is provided with a groove portion 185 capable of accommodating the base portion 19a of the locking member 19, so that the cap 18 accommodates the locking member 19 and the intermediate rail main body 12 and the front cover. It can be configured to lock each end of the 13 in the left-right width direction. The modification as shown in FIG. 8 is also applicable to the head box 1.

However, since the cap 18 and the locking member 19 as shown in the drawing are usually assumed to be molded by a resin material, the above-mentioned FIGS. 4 and 7 are used rather than the engaging protrusions of the resin material. As shown in the example, it is possible to form a solar shielding device that is stronger due to aging with respect to the shape, if the intermediate rail main body 12 of the metal material and the main body 1a of the head box 1 are provided with the engaging protrusions. Further, even if the cap 18 has a simple shape, the intermediate rail main body 12 made of a metal material and the main body 1a of the head box 1 are provided with an engaging protrusion.
Positioning in the left-right width direction is possible, the form of each cover attached to the main body portion 1a of the intermediate rail main body 12 and the head box 1 is permanently stabilized, and the overall cost can be reduced. ..

Further, the present invention is not limited to the example of the above-described embodiment. For example, in one type of solar shielding device, as shown in FIG. 9, the upper ends of the elevating cords 15 and 16 are guided in the head box 1, respectively. There is also an embodiment in which the cord equalizer 9a is connected to the operation cord 9 and attached to the intermediate rail 7 by a knot ball. In this case, as shown in FIG. 10, an insertion hole 133 for inserting the other end of the operation code 9 may be provided on the front surface of the front cover 13.

Further, in a form in which the end portion of the operation code 9 is attached to the front surface of the front cover 13 that fits with the intermediate rail main body 12 (see FIG. 9), as shown in FIG. It is preferable to provide the operation code 9 with a safety joint (referred to as "safety joint") 30. More specifically, the safety joint 30 is composed of, for example, a male member 30a and a female member 30b that can be fitted and removed as shown in FIG. 11B. The male member 30a is locked by the knot ball 9c at the other end of the operation cord 9 which attaches one end to the front cover 13 and hangs down, and the female member 30b attaches one end to the cord equalizer 9a and hangs down. It is locked by the knot ball 9d at the other end of the folded operation code 9. The male member 30a is provided with a protruding shaft portion 31a, and the protruding shaft portion 31a is inserted into a receiving hole 31b provided in the female member 30b, and can be fitted by a peripheral protrusion provided in the protruding shaft portion 31a. When a tensile load greater than or equal to a predetermined value is received, the receiving hole 31b is elastically expanded and can be separated.

That is, in the form shown in FIG. 9 in which the safety joint 30 is not provided, if the foreign matter Ob is caught in the folded operation code 9, the load F acts on the foreign matter Ob, which is not preferable from the viewpoint of safety. At this time, even if the front cover 13 and the intermediate rail main body 12 are disengaged from each other (not shown A) due to the load F and the safety is ensured, the long front cover 13 is refitted to the intermediate rail main body 12. It is not easy for the user to combine and restore.

Therefore, when the foreign matter Ob is caught in the folded operation code 9 and the load F acts, the safety joint 30 has the male member 30a and the female member prior to the separation of the fitting (FIG. A) between the front cover 13 and the intermediate rail body 12. Since the 30b is configured to have a connecting force for separation, safety can be ensured and the front cover 13 can be prevented from coming off from the intermediate rail main body 12. The fitting force includes, for example, the holding force by the cap 18 when the cap 18 capable of holding the front cover 13 and the intermediate rail main body 12 as shown in FIG. 8 is used. As a result, the connection of the safety joint 30 can be separated before the fitting (not shown A) between the front cover 13 and the intermediate rail main body 12 is disengaged. Since the safety joint 30 has a structure that is easy for the user to reconnect, it is possible to reduce the burden on the user for returning.

A predetermined cover is provided on the bottom rail 8, and a safety joint 30 is provided on the operation code 9 connected to the cover provided on the bottom rail 8, prior to the separation of the fitting between the cover and the bottom rail 8. The male member 30a and the female member 30b of the safety joint 30 may be configured to have a connecting force that separates them.

Therefore, when the rail is formed by fitting the rail body and the cover in the form of having the rail at the lower part of the shielding material, the fitting force between the cover and the rail body is the fitting force between the cover and the rail body. It is preferable that the connecting member is disconnected and separated prior to the separation. With this configuration, the end of the operation cord 9 is attached to the cover in an endless manner via a connecting member (that is, a safety joint 30) that is separated by a tension of a predetermined load or more. On the other hand, when the connecting member is separated by a tension of a predetermined load or more, the operation code 9 becomes non-endless.

Further, in the above-mentioned example, regarding the intermediate rail 7, the cover attached to the intermediate rail main body 12 is exemplified as the front cover 13, but the intermediate rail 7 to which the cover is attached regardless of the front, rear, upper and lower surfaces of the intermediate rail main body 12 is used. On the other hand, techniques such as the engaging protrusions 101R and 101L and the engaging receiving portions 141R and 141L according to the present invention can be applied.

Similarly, regarding the head box 1, the cover attached to the main body portion 1a of the head box is exemplified as the upper cover 14, but the head box 1 to which the cover is attached regardless of the front, rear, upper and lower surfaces of the main body portion 1a of the head box 1 is illustrated. However, techniques such as the engaging protrusions 101R and 101L and the engaging receiving portions 141R and 141L according to the present invention can be applied.

Similarly, with respect to the bottom rail (not shown) to which the cover is attached regardless of the front, rear, upper and lower surfaces of the bottom rail body, the engaging protrusions 101R, 101L and the engaging receiving portions 141R, 141L, etc. according to the present invention are used. Techniques can be applied.

Further, in the description of the above-described embodiment, a specific example has been given as the resin material, but the "resin material" according to the present invention includes wood, a single resin, a synthetic resin, or a composite material thereof. Say something.

Further, the "cover" according to the present invention is configured to have substantially the same length in the longitudinal direction (left-right direction) with respect to each of the main body 1a of the head box 1, the intermediate rail main body 12 or the bottom rail main body. It says what is done.

According to the present invention, it is possible to configure a solar shading device that is resistant to aging with respect to an intermediate rail or a head box, and is therefore useful for applications of a solar shading device that requires an intermediate rail or a head box.

1 Headbox 1a Headbox body 7 Intermediate rail 12 Intermediate rail body 13 Front cover for intermediate rail 14 Top cover for headbox 18 Cap 19 Locking member for intermediate rail 101R, 101L Engagement in the body of headbox Fitting protrusions 122R, 122L Engaging protrusions on the intermediate rail body 132R, 132L Engaging receiving parts on the front cover for the intermediate rail 141R, 141L Engaging receiving parts on the upper cover for the head box 131 In the front cover for the intermediate rail Fitting protrusion 121 Fitting receiving part in the intermediate rail body

Claims (1)

It is a solar shielding device that suspends and supports the shielding material from the head box.
It has a rail at the bottom or in the middle of the shield,
The rail is fitted so that the rail body and the cover can be separated from each other.
The end of the operation cord having a connecting member separated by a tension of a predetermined load or more is attached to the cover to make it endless, and when the connecting member is separated by a tension of a predetermined load or more, the operation cord is non-endless. When the tension for separating the connection of the connecting member acts in the direction of disengaging the cover and the rail body via the operation cord, the cover and the rail body The fitting force of the sun shielding device is configured such that the connecting member is disconnected and separated prior to the separation of the fitting of the cover from the rail body.

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