JP7247022B2 - BLIND - Google Patents

Description

The present invention relates to blinds.

2. Description of the Related Art Conventionally, there is a blind called a honeycomb screen formed by connecting a plurality of cylindrical cells having a hexagonal cross section so that they can be folded and unfolded.

Patent Document 1 below discloses that an opening can be shielded by a screen having a hexagonal honeycomb cross section in which a first surface and a second surface are connected by spacer means, and at least one of a frame plate and a screen forming the opening. A key means, which is a vertical frame, is attached to the frame plate and forms a slot from the side edge of the screen toward the inside of the spacer means to block light passing through the gap between the side edge of the screen and the key means. is disclosed to engage the slot.

Accordingly, by lowering the screen to cover the opening, it is possible to prevent light and heat energy from passing through between the screen and the opening.

EP-A-2395194

However, in the technique described in Patent Document 1, the key means consists of a flange that serves as an attachment portion to the frame plate, and a locking piece (web) extending in a direction substantially orthogonal to the flange, and the opening The screen is attached to the vertical portion of the frame plate by screws or nails.

In view of the circumstances as described above, it is an object of the present invention to provide a blind capable of improving design while ensuring heat insulation.

To achieve the above object, a blind according to one aspect of the present invention is a blind installed in an opening of a building, comprising: a support member; and a bottom rail provided at the other end of the shield. The bottom rail has a shape in which the rear side of the blind in the longitudinal direction and both ends in the longitudinal direction of the bottom rail are notched, so that the rear side is shorter than the front side in the longitudinal direction. be. The shield has a shape corresponding to the shape of the bottom rail.

According to this configuration, the rear side of the bottom rail is formed shorter than the front side, so that the rear side is accommodated in the opening (inside the window frame or between the walls), and the front side is the opening (window frame) inside the room. or wall), the gap between the opening and the blind can be covered with a bottom rail to ensure heat insulation and improve the design. Also, when a frame is installed in the opening, by designing the notched part to engage with the frame, the frame is hidden by the bottom rail, ensuring heat insulation and improving the design. be able to. Furthermore, with this configuration, the notched portion engages with the opening, thereby suppressing lateral swinging of the blind. The shielding material may also have a notched shape like the bottom rail.

It may further include a blind frame that is fixed to the opening and closes a gap between the blind and the opening. In this case, both ends of the bottom rail on the front side overlap the blind frame in the front-rear direction, and both ends of the bottom rail on the rear side face the blind frame in the longitudinal direction. good.

According to this configuration, by hiding the frame with the front side of the bottom rail, it is possible to improve the design while ensuring heat insulation, and the engagement between the bottom rail and the frame suppresses the lateral rocking of the blind. be able to.

The blind frame has a base portion fixed to the opening, and a first shielding piece projecting from the base portion toward the shielding material,
The base portion is formed on the rear side of the center of the blind in the front-rear direction, and has an insertion portion between the base portion and the first shielding piece through which a portion of the bottom rail is inserted.

According to this configuration, by setting the frame toward the rear side of the front surface of the bottom rail, the base portion can be covered with the bottom rail, and the first shielding piece that closes the gap between the opening and the shielding member. is covered with a shielding material so that the frame is not exposed to the side of the blind, and the design is improved while ensuring heat insulation.

The base portion may have a second shielding piece extending forwardly of the first shielding piece and passing through a part of the bottom rail.

According to this configuration, by providing the second shielding piece, even when the shielding material is open, the base portion is covered with the second shielding piece, thereby improving the design of the frame.

The blind frame forms a space in the vertical direction of the blind frame with the base, and covers the fixing member for fixing the base to the opening. The base portion may have a detachable cover member. In this case, the insertion portion may be a space formed between the cover member and the first shielding piece.

According to this configuration, by inserting a part of the bottom rail between the first shielding piece and the cover, the back and forth movement of the bottom rail is restricted and the blind is prevented from being blown by wind or the like.

The insertion portion may be a space formed between the first shielding piece and the second shielding piece.

According to this configuration, by inserting a part of the bottom rail between the first shielding piece and the second shielding piece, the back and forth movement of the bottom rail is restricted and the blind is prevented from being blown by the wind or the like. do.

The bottom rail may have a protrusion that protrudes from a portion of the short rear side and that is inserted through the insertion section.

According to this configuration, the long portion of the bottom rail is arranged closer to the front side than the frame, and the end of the bottom rail can be brought close to the opening frame, thereby further improving shielding and heat insulating properties. Further, the blind can be raised and lowered stably by guiding the protrusion to the insertion portion.

As described above, according to the present invention, it is possible to improve design while ensuring heat insulation. However, this effect does not limit the invention.

1 is a plan view of a blind according to one embodiment of the present invention; FIG. Figure 2 is a front view of the blind of Figure 1; It is right side (YZ plane) sectional drawing of the said blind. It is a partial cross-sectional perspective view near the lower end part of the said blind. Figure 3 is a partially sectioned perspective view of the frame of the blind; It is plane (XZ plane) sectional drawing near the bottom rail edge part of the said blind. FIG. 7 is a diagram showing a partially omitted screen in the plan cross-sectional view of FIG. 6 ; It is a plane (XZ plane) sectional drawing near the bottom rail edge part of the blind which concerns on other embodiment of this invention. It is a plane (XZ plane) sectional drawing of the blind which concerns on other embodiment of this invention. FIG. 10 is a plane (XZ plane) cross-sectional view near the bottom rail end of the blind of FIG. 9 ;

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

[Blind configuration]
FIG. 1 is a plan view of a blind according to this embodiment, and FIG. 2 is a front view of the blind. 3 is a right side (YZ plane) cross-sectional view of the blind, and FIG. 4 is a partial cross-sectional perspective view of the vicinity of the rear lower end of the blind.

As shown in these figures, the blind 100 according to this embodiment has a headbox 1 as a support member, a screen 2 as a shielding material, and a bottom rail 3 . Long frames 4 are provided on both sides of the blind 100 in the vertical direction (Y direction) of the blind 100 .

The headbox 1 is installed in an opening O such as a window frame or a bay window of a building. The screen 2 is supported at its upper end by the head box 1 and suspended so as to be able to move up and down. A bottom rail 3 is provided at the lower end of the screen 2 . The frame 4 is provided so as to block the gap between the side portion of the blind 100 and the opening O. As shown in FIG.

As shown in FIGS. 1 to 3, the headbox 1 has a horizontally elongated rectangular parallelepiped shape, and is fixed to an opening O via a bracket 5 with screws or the like. Between the upper surface of the head box 1 and the opening O is provided an upper gap preventing material 8 such as mohair for closing the gap between the two.

As shown in FIG. 3, a winding drum 11 is provided inside the headbox 1 . A rotating shaft 10 passes through the winding drum 11, so that the winding drum 11 and the rotating shaft 10 are integrally rotatably supported. Although not shown, the head box 1 is also provided with a stopper or the like for switching between a state in which the rotation of the rotating shaft in the unwinding direction is permitted and a state in which it is restricted.

As shown in FIGS. 3 and 4, the screen 2 is a honeycomb screen formed by connecting a plurality of cylindrical cells each having a hexagonal cross section in the Y direction of the figure so that the cells can be folded and unfolded. The front-to-rear width (length in the Z direction) of the screen 2 when folded is, for example, 25 mm, but is not limited to this, and may be, for example, 45 mm. The material of the screen 2 is made of, for example, a material that does not transmit light, but it may be made of a see-through material.

A lifting cord insertion hole (not shown) is formed inside the screen 2, and a lifting cord (not shown) suspended from the head box 1 is inserted through the lifting cord insertion hole. The upper end of the lifting cord is connected to the winding drum 11 inside the head box 1 so as to be capable of winding and unwinding, and the other end of the lifting cord is connected to the bottom rail 3 .

At the right end of the head box 1, an operation unit 6 having a pulley or the like that can rotate integrally with the rotary shaft 10 is provided, and an operation cord 7 is wound around the pulley and led out. When the user operates the operation code 7, the elevating code is raised and lowered, and the bottom rail 3 is raised and lowered, whereby the screen 2 can be expanded and contracted.

Both ends in the longitudinal direction of the bottom rail 3 are opened so that the lower end of the screen 2 can be inserted during assembly, and bottom rail caps 31 are detachably provided in the openings.

On the bottom surface of the bottom rail 3, a lower clearance preventing member 9 such as rubber packing is provided to close the clearance between the opening O and the lower end of the bottom rail 3. As shown in FIG.

[Frame Details]
Next, details of the frame 4 will be described together with relevant parts of the screen 2 and the bottom rail 3. FIG. 5 is a partial cross-sectional perspective view of the frame 4, FIG. 6 is a plane (XZ plane) cross-sectional view near the end of the bottom rail 3, and FIG. It is an omitted figure.

As shown in FIGS. 3, 4, 6 and 7, the screen 2 and the bottom rail 3 are positioned rearward of the center line C of the blind 100 in the longitudinal direction (Z direction) and in the longitudinal direction of the bottom rail 3. As shown in FIGS. It has rectangular cutouts 21 and 32 at both ends (in the X direction). As shown in FIG. 7, the cutout portion 32 of the bottom rail 3 is formed by covering the cutout portion of the main body of the bottom rail 3 with a bottom rail cap 31 having a shape along the cutout portion.

That is, the bottom rail 3 has the cutout portion 32, so that the rear side is shorter than the front side in the longitudinal direction. As a result, the frame 4 is hidden by the front side of the bottom rail 3, thereby improving the design.

As shown in FIGS. 3 to 7, the frame 4 has a base portion 41, shielding pieces 42, and a cover member 43. As shown in FIGS. Further, as shown in FIG. 5, the upper end of the frame 4 is formed with an interference prevention portion 44 which is a notch for preventing interference with the left and right ends of the head box 1 .

As shown in FIGS. 6 and 7, the bottom surface of the base portion 41 is fixed to the opening O by screws or the like. The shielding piece 42 protrudes from the rear end portion of the base portion 41 in the front-rear direction (Z direction) toward the screen 2 (and the bottom rail 3).

The shielding pieces 42 are provided so as to face the left and right end portions of the back surface of the screen 2 and the bottom rail 3 . The base portion 41 is formed on the rear side of the center line C in the front-rear direction.

The bottom rail 3 (bottom rail cap 31 ) has a projecting portion 33 projecting from a portion of the rear side formed in a short length, and the projecting portion 33 is inserted between the base portion 41 and the shielding piece 42 . An insertion portion 45 for (engagement) is formed. More strictly, the insertion portion 45 is a space formed between the cover member 43 and the shielding piece 42 .

As a result, the shielding piece 42 closes the gap between the opening O and the screen 2 to prevent the inflow of air to improve heat insulation, and the projection 33 prevents the bottom rail 2 from moving in the front-rear direction (Z direction). It regulates and prevents the blind 100 from being blown by the wind or the like.

The cover member 43 is attachable to and detachable from the base portion 41 so as to cover a fixing member such as a screw for fixing the base portion 41 to the opening O. direction). That is, the space portion S is formed from the lower end of the interference prevention portion 44 formed facing the headbox 1 to the lower end of the frame 4 . In this embodiment, the cover member 43 has a convex cross-sectional shape, and is fixed by being inserted into and engaged with the concave portion of the inner side surface of the base portion 41 .

By forming the space S with the cover member 43, the heat insulation performance of the frame 4 itself can be improved, and the fixing members (screws, etc.) of the base portion 41 can be hidden to improve the design.

[Blind behavior]
Next, the operation of the blind 100 configured as above will be described.

First, when the screen 2 is folded from the unfolded state as shown in FIG. 11 are rotated integrally, the winding drum 11 winds up the lifting cord, the bottom rail 3 rises, and the screen 2 is sequentially folded from the lowest cell to the upper end cell. After that, when the operation of the operation cord 7 is finished, the rotation of the rotating shaft 10 is restrained by the stopper, and the screen 2 is maintained in the folded state.

Next, when the screen 2 is unfolded from the folded state, the operation cord 7 is operated to release the stopper. As a result, the bottom rail 3 and the screen 2 are lowered by their own weight, and the screen 2 is deployed.

During such a lifting operation, the cutouts 32 and 21 of the bottom rail 3 and the screen 2 are guided by the shielding pieces 42, and the protrusions 33 are guided by being inserted through the insertion portions 45, thereby stabilizing the operation. It becomes possible to move up and down. At the same time, the frame 4 is covered with the screen 2 and the bottom rail 3 during the up-and-down operation, thereby improving the design while ensuring heat insulation.

[summary]
As described above, according to the present embodiment, the base portion 41 of the frame 4 and the front side of the bottom rail 3 are overlapped in the front-rear direction of the blind 100, so that the front side is brought as close to the fixed surface O as possible. Also, by forming the shielding piece 42 along the rear side of the blind 100, the shielding property, the heat insulation property and the design property are improved. Further, by inserting the protrusion 33 of the bottom rail 3 into the insertion portion 45 of the frame 4, it is possible to realize a stable up-and-down operation while suppressing swinging of the blind 100 in the front-rear direction and the lateral direction.

[Modification]
The present invention is not limited to the above-described embodiments, and can be modified in various ways without departing from the gist of the present technology.

In the above-described embodiment, the projecting portion 33 is formed to protrude from the short rear end portion of the bottom rail 3 , and the projecting portion 33 is positioned between the cover member 43 of the frame 4 and the shielding piece 42 . It was inserted through the formed insertion portion 45 . However, the bottom rail 3 may not be provided with such protrusions.

FIG. 8 is a plane (XZ plane) cross-sectional view of the vicinity of the bottom rail end of the blind in this case. As shown in the figure, in this example, the base portion 41 has another shielding piece (first shielding piece) 42 closer to the front side (the front end of the base portion 41) than the shielding piece (first shielding piece) 42 on the rear side. A piece (second shielding piece) 46 is provided.

On the other hand, on the rear side of the bottom rail 3 formed short, a recess 34 is formed near the boundary with the front side, and the second shielding piece 46 is inserted through the recess 34 .

In this example, the insertion portion 45 is formed as a space formed between the first shielding piece 42 and the second shielding piece 46, and the entire rear side of the bottom rail excluding the recess 34 is the The insertion portion 45 is inserted.

According to this configuration, by providing the second shielding piece 46 , even when the shielding material 2 is opened, the base portion 41 is covered with the second shielding piece 46 , thereby improving the design of the frame 4 . Further, by inserting the entire rear side of the bottom rail 3 between the first shielding piece 42 and the second shielding piece 46, movement of the bottom rail 3 in the fore and aft direction is restricted, and the blind 3 is prevented from being blown by the wind or the like. can be prevented.

In the above-described embodiment, the frame 4 is provided in the opening O in which the blind 100 is installed. is also possible.

FIG. 9 is a cross-sectional plan view showing the installation state of the blind in this case, and FIG. 10 is a cross-sectional view of the vicinity of the bottom rail end portion of the blind shown in FIG. 9 taken along the plane (XZ plane).

As shown in both figures, in this example, the blind 100 is installed so that the notch 32 of the bottom rail 3 engages the opening O of the window frame, wall, or the like. That is, in this case, the short rear ends of the bottom rail 3 face the inner surface of the opening O in the longitudinal direction (X direction), and the long front ends of the bottom rail 3 , overlaps the wall or window frame around the opening O in the front-rear direction (Z direction). The notch 21 of the screen 2 is also formed in a shape corresponding to this. Therefore, in this example, the short rear side of the bottom rail 3 and the rear side of the screen 2 are fitted in the opening O. As shown in FIG.

By not using the frame 4, the blind 100 can be installed even in a place where the frame 4 cannot be installed because the fixed surface O is narrow and the distance between the window W and the blind 100 is small as shown in FIG. By engaging with 32, it is possible to obtain the same effects as those of the above embodiment, such as stable lifting operation, prevention of rocking, improvement of heat insulation, and improvement of design.

In the above-described embodiment, the boundary between the front side and the rear side of the bottom rail 3 (the position where the notch 32 is formed) is set to the center line C of the bottom rail 3 in the front-rear direction. A boundary between the front side and the rear side may be set at a position shifted in the front-rear direction from the center line.

In the above-described embodiments, an example using a honeycomb screen as a shielding material was shown. However, the shielding material is not limited to this. For example, the present invention is similarly applicable to other brands such as Venetian blinds and roll screens using metal, resin or wooden slats.

1……Headbox 2……(Honeycomb) screen 3……Bottom rail 4……Frame 5……Bracket 6……Operation unit 7……Operation code 8……Top gap preventing material 9 --- Lower clearance preventing member 10 --- Rotating shaft 11 --- Winding drum 21 --- (Screen) Notch 31 --- Bottom rail cap 32 --- (Bottom rail) Notch 33 --- Protrusion 34 --- Recessed portion 41 Base portion 42 (First) shielding piece 43 Cover member 44 Interference prevention portion 45 Insertion portion 46 (Second) shielding piece 100 Blind O Opening S …………Space C…………Center line

Claims (6)

A blind installed in an opening of a building,
a support member;
a shielding material whose one end is supported by the supporting member and hangs vertically from the supporting member;
a bottom rail provided at the other end of the shielding material ;
a blind frame that is fixed to the opening and closes a gap between the blind and the opening;
and
The bottom rail has a shape in which both ends of the bottom rail in the longitudinal direction are notched on the rear side in the longitudinal direction of the blind, so that the rear side is formed shorter than the front side in the longitudinal direction. ,
The shielding material has a shape corresponding to the shape of the bottom rail,
The blind frame has a base portion fixed to the opening and a first shielding piece projecting from the base portion toward the shielding material,
Both ends of the bottom rail on the front side overlap with the base portion in the front-rear direction,
Both ends of the bottom rail on the rear side face the base portion in the longitudinal direction, and the back faces of the bottom rail face the first shielding piece in the front-rear direction.
BLIND. A blind according to claim 1 ,
The base portion is formed on the rear side of the center of the blind in the front-rear direction, and has an insertion portion between the base portion and the first shielding piece through which a portion of the bottom rail is inserted. A blind according to claim 2 ,
The said base part has a 2nd shielding piece which penetrates a part of said bottom rail ahead rather than the said 1st shielding piece. A blind according to claim 2 or 3 ,
The blind frame forms a space in the vertical direction of the blind frame between itself and the base, and the blind frame covers a fixing member for fixing the base to the opening. Having a detachable cover member on the base part,
The said insertion part is a space formed between the said cover member and the said 1st shielding piece. Blind. A blind according to claim 3 ,
The said insertion part is a space formed between the said 1st shielding piece and the said 2nd shielding piece. A blind according to any one of claims 2 to 5 ,
The bottom rail has a protrusion that protrudes from a portion of the short rear side and that is inserted through the insertion section.

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