JP2593365B2 - Arc-shaped box frame such as curtain box and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arc-shaped box frame such as a curtain box having a substantially U-shaped or L-shaped cross section and curving in an arc shape, and a method of manufacturing the same.

[0002]

2. Description of the Related Art Generally, a curtain box is formed by extruding a top plate and a side plate so that a cross section thereof is substantially U-shaped or L-shaped. For example, when arranging a curtain box having such a sectional shape in an L-shape on a ceiling of a room,
While connecting the box frame of predetermined dimensions in a straight line,
The corners may be configured by abutting the ends of the box frame at right angles.

[0003] However, when the corner of the building frame is curved, the entire curtain box frame must be curved accordingly. Therefore, conventionally, a box frame formed in a straight shape has been forcibly bent. By the way, when a member having an L-shaped or U-shaped cross section is forcibly curved, an excessive force is applied particularly to a corner where the top plate and the side plate are in contact with each other, and as shown in FIG. 20 is wavy deformed, and wrinkles are formed inside the curve,
The side plate 21 is bent at an acute angle with respect to the top plate 20, and wrinkles can be formed inside the curve. There are drawbacks such as the formation of a gap between them and the butt joining of the box frames does not work well, and the correction requires time and effort.

[0004] Such a situation is the same for a box frame for storing blinds and lighting equipment.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks and to provide a box frame such as an arc-shaped curtain box having high dimensional accuracy. An object of the present invention is to provide a method for manufacturing a box frame such as a curtain box that can be manufactured with high dimensional accuracy.

[0006]

In order to achieve the above object, an arc-shaped box frame such as a curtain box according to the present invention is formed in a slender top plate made of aluminum or an alloy thereof and has a hook shape along a side edge thereof. Provided aluminum or its combination
A box frame formed from a gold extruded material side plate, wherein the top plate is bent in the width direction, and the side plate is formed in the thickness direction.
Curved and extended horizontally from the upper and lower ends
Along the side edge of the top plate
Characterized in that the side plates are fixed, and attached to the building frame to be horizontal in the front and curved in the plane.

[0007] In the method of manufacturing arc box frame and a curtain box according to the present invention, aluminum or its case
Curve a thin, elongated top plate made of gold in the width direction, and from the top and bottom
Aluminum or aluminum with overhanging edges
The side plate made of the extruded material of the alloy is sent between the three frames,
Rotate two frames and press the remaining frame against the side plate
And bend in the width direction of the overhanging edge in the thickness direction of the plate part
After urchin molding, characterized by fixing the side plate along a side edge of the top plate.

[0008]

According to the arc-shaped box frame such as the curtain box according to the present invention, the individually curved and formed top plate and side plate are attached to the top plate.
Is the side plate fixed along the side edge of the plate?
Furthermore, the dimensional accuracy is high, and post-processing such as straightening is not required.
Therefore, the treatment between the ceiling plate and the wall and the matching of the box frames are also good. In the case of the curtain box,
The curtain slides well. The side plate is fixed to the top plate
Use the overhanging edge at the upper end of the side plate.
it can.

Further, in the method of manufacturing an arc-shaped box frame such as a curtain box according to the present invention, the box frame is divided into a top plate and a side plate, and the top plate and the side plate are separately curved and formed. Since the fixing method is used, the curve forming itself is easy and the deformation due to the curve forming is small, so that a box frame with high dimensional accuracy can be manufactured . In forming the side plate, three side plates were
Feed between the frames, rotate the two frames, and
Press the top piece to the side plate and overhang the edge in the thickness direction of the plate part.
Because it is formed to bend in the width direction, use large equipment.
It can be easily formed even if it is not needed.

[0010]

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

FIGS. 1 and 2 show a box frame for a curtain box. The box frame A is formed by forming the side plates 2 and 3 from both side edges of the top plate 1 in a hook shape so that the cross section becomes a U-shape, and is not straight, but is entirely curved in the length direction. I have. A curtain rail 4 made of an extruded material is screwed and fixed to the lower surface of the top plate 1, and thick overhanging edges 5 and 6 are formed in parallel from the upper and lower ends of the side plates 2 and 3, respectively. A locking edge 7, a small palate screw hole 8, and a connecting groove 9 are formed on side surfaces of the side plates 2 and 3. Then, the box frame A is horizontal at the front in a state where it is attached to the building frame, and is curved in a plane. Therefore, dimensional accuracy is high,
No post-processing such as straightening is required, the treatment between the ceiling plate and the wall and the abutment between the box frames are good, and in the case of a curtain box, the sliding of the curtain is also good.

Such a box frame A can be manufactured by the following steps.

First, the top plate 1 constituting the box frame A
And the side plates 2 and 3 are formed into three parts from separate members.

The top plate 1 is made of aluminum or an alloy thereof and is formed in a straight and elongated flat plate shape, and is further bent in an arc shape in the width direction as shown in FIG. Such molding is not technically difficult, since it is only a deformation in which one side is elongated and the other side is reduced. The curtain rail 4 may be separately curved and fixed to the lower surface of the top plate 1 by screws.

Next, the side plates 2 and 3 on both sides are respectively bent in the thickness direction corresponding to the bending state of the top plate 1. Each of the side plates 2 and 3 is made of an extruded material made of aluminum or an alloy thereof. The side plates 2 and 3 have a locking edge 7, a screw hole 8, and a connection groove 9 protruding in the thickness direction.
The overhanging edges 5 and 6 protruding outward from the upper and lower ends 3 are only about one-fourth of the width of the side part, so the side plate 3 having the structure used for the curtain box (the same applies to the side plate 2).
Can be grasped as a plate-like material as a whole, as shown in FIG. 3, and can be curved in the thickness direction.

In the case of the curve forming, usually, FIG.
As shown in (b), the side plate 3 is fed between the two driving frames 11 and 12 and the pressing frame 13 provided at an interval, and the driving frames 11 and 12 are rotated to place the side plate 3 on one side. The side plate 3 may be bent in the thickness direction by pushing the bending pressing top 13, which is disposed opposite to the drive tops 11 and 12, against the side plate 3. The same applies to the side plate 2.

The reason why the overhanging edges 5 and 6 having substantially the same thickness are formed from the upper and lower ends of the side plates 2 and 3 is that the overhanging edges 5 and 6 can be evenly bent at the time of curved forming. If only 6 is formed on one side, the overhanging edges 5 and 6 cannot be bent stably, and will dance in a waveform as shown by the dotted line in FIG. The reason why the overhanging edges 5 and 6 are made thicker is to prevent the deformation more effectively.

Next, the side plates 2 and 3 having the above structure are fixed along both side edges of the top plate 1 having the above structure. In this case, as shown in FIG. 2, the side edge of the top plate 1 may be fixed to the overhanging edge 5 at the upper end of the side plates 2 and 3 with screws, rivets 14, or the like. 3 and the upper end overhanging edge 5 may be welded.

By the above process, the box frame A curved in an arc shape shown in FIG. 2 can be manufactured. in this way,
Since the box frame A is divided into the top plate 1 and the side plates 2 and 3 and the top plate 1 and the side plates 2 and 3 are separately curved and fixed to each other, the curvature molding itself is easy. In addition, since the deformation due to the curved forming is small, the box frame A with high dimensional accuracy can be obtained.

As shown in the drawing, the connection between the box frame A and the other box frame B is performed by connecting the upper surfaces of the top plates 1 with a joint plate 15 and connecting grooves of the butted portions of the side plates 2 and 3. 9 by inserting a joint fitting 16. Further, anchors of suspension bolts may be fixed to the top plate 1, a ceiling plate 17 may be placed on the lower overhanging edges 5 and 6, or a mounting piece 19 to the wall frame 18 may be fixed.

The shape of the box frame A is not limited to the above. For example, as shown in FIG. 5, upper and lower overhanging edges 5, 6 and an intermediate overhanging edge 24 are formed on the side plates 2, 3, and the intermediate overhanging edge 24 fixes the side plate anchor 21 of the streak 20 from the ceiling, For example, one end of the anchor 23 of the suspension bolt 22 from the ceiling is fixed. In addition, the box frame is not limited to the above-mentioned U-shaped configuration of the lower opening,
There is also an L-shaped configuration, and the box frame may be formed in an L-shape by fixing only one side plate 3 to the substrate 1.

Further, the box frame is not limited to a curtain box. It can also be configured as a blind box or a box frame for lighting equipment.

[Brief description of the drawings]

FIG. 1 is a bottom view of a curtain box using a box frame according to the present invention.

FIG. 2 is a perspective view of a part of the curtain box.

FIG. 3 is a perspective view of one side plate of the curtain box.

FIG. 4 is a side plate curve forming apparatus, (a) is a side view thereof,
(B) is a plan view.

FIG. 5 is a perspective view of another example of the box frame.

FIG. 6 is a perspective view in which a deformed portion of an arc-shaped box frame of a conventional curtain box is emphasized.

[Explanation of symbols]

 A Box frame B Box frame 1 Top plate 2 Side plate 3 Side plate 5 Overhanging edge 6 Overhanging edge

Claims (2)

(57) [Claims] 1. An elongated top plate made of aluminum or an alloy thereof and aluminum formed in a hook shape along a side edge thereof.
Or a box frame formed from an extruded side plate made of an alloy thereof, wherein the top plate is curved in the width direction, and the side plate is
It curves in the thickness direction and stretches horizontally from its upper and lower ends.
With an overhanging edge that extends out and curves in the width direction, the top plate
An arc-shaped box frame, such as a curtain box, characterized in that the side plate is fixed along a side edge and is horizontal in front and curved in a plane when attached to a building frame. 2. An elongated ceiling made of aluminum or an alloy thereof.
Curves the board in the width direction and extends horizontally from the upper and lower ends
Aluminum or its alloy extrusion mold with overhanging edge
The wood side plate is sent between three frames and the two frames are rotated.
And press the remaining one piece against the side plate to make it thicker.
Formed to bend in the width direction of the overhanging edge in the direction
After method arcuate box frame and a curtain box, characterized in that fixing the side plate along a side edge of the top plate.