JP2000257359A - Bracket structure of window shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized bracket, in which the left and the right can be combined, without installing a bearing section as another body. SOLUTION: The side section of a shutter case is composed of the two members of a side cover and a bracket 2, the bracket 2 comprises a main-body surface 21 with a bearing section pivotally supporting a winding shaft and a body mounting surface 22 fixed on the body side, the bearing section 29 is constituted of a shaft through section 25 formed by cutting and raising the main-body surface 21 and a cut-raised piece 26 cut and raised from the main- body surface 21, and a bolthole 26a for fixing the winding shaft by a bolt is formed to the cut-raised piece 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bracket structure for a window shutter mounted on a building such as an apartment or a house.

[0002]

2. Description of the Related Art A conventional window shutter bracket is shown in FIG.
As shown in FIG. 5, a substantially trapezoidal main body surface A in front view, a frame mounting surface B for mounting a bracket to the frame, and a case mounting surface C for mounting a case plate to the bracket.
A U-shaped bearing portion D for supporting the take-up shaft on the bracket is attached to the main body surface A substantially at the center thereof by welding or riveting. Then, the shaft portion of the winding shaft was placed on the U-shaped portion of the bearing portion D, and fixed by bolts, whereby the winding shaft was mounted on the bracket.

As shown in FIG. 8, a side cover E made of resin is attached to the outside of the bracket to improve the design of the shutter case and protect the bracket, and the side cover E is a main body of the bracket. It was formed in almost the same shape as the surface A. And the bracket was fixed to the frame side by hooking the frame mounting surface B of the bracket to the hook fitting F mounted above the opening of the building and screwing it.

[0004]

The conventional bracket structure as described above has the following disadvantages. (1) Since a separate U-shaped bearing portion is attached to the bracket main body surface by welding, riveting, or the like, there is a possibility that the shaft may fall due to improper installation. (2) Since a separate U-shaped bearing portion is attached to the bracket body surface, the bearing portion is left-right-handed despite being vertically symmetrical with the bracket, so that a left-right bracket can be manufactured. could not. (3) Since the shape of the bracket and the shape of the side cover are almost the same, if the shape of the case is changed, it is necessary to prepare a bracket suitable for the shape.

[0005]

SUMMARY OF THE INVENTION In view of the above situation, the present invention has been made to solve these problems, and a side portion of a shutter case is formed by a side cover and a bracket. With two members,
The bracket includes a main body surface having a bearing portion that supports the take-up shaft, and a skeleton mounting surface that is fixed to the skeleton side. From a shaft penetrating portion formed by cutting and raising the main body surface of the bracket and a bracket main body surface, The cut-and-raised piece constitutes the bearing portion, and the cut-and-raised piece is formed with a bolt hole for fixing the winding shaft with a bolt. It is formed along the edge of the main body surface on the outdoor side. Further, according to the present invention, in a bracket structure of a window shutter in which a side portion of a shutter case is composed of two members, a side cover and a bracket, the bracket is fixed to a main body surface and a frame having a bearing portion that supports a winding shaft. The main body surface is formed with a shaft penetration portion through which a shaft portion of a take-up shaft can penetrate, and a cut-and-raised piece formed by cutting and raising the main body surface is formed through the shaft penetration portion. The shaft penetrating portion and each cut-and-raised piece constitute a bearing portion, and the length of the bent base end of at least one of the cut-and-raised pieces is the length of the cut-and-raised piece of the shaft penetrating portion. Is formed to be longer than the length of the side adjacent to.

[0006]

According to the first aspect of the present invention, the shaft penetrating portion formed by cutting and raising supports the winding shaft, and the winding shaft can be fixed to the cut and raised piece with bolts.
The cut-and-raised form forms a bearing portion that supports the winding shaft. According to the second aspect of the present invention, the bearing portion is formed along the outer side edge of the main body surface of the bracket, so that the size of the bracket can be reduced. According to the third aspect of the invention, the length of the cut and raised piece can be increased.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a window shutter according to the present invention. In the drawing, reference numeral 1 denotes a shutter curtain formed by vertically connecting metal slats, and the upper end of the shutter curtain 1 is connected to a pair of left and right brackets 2. Winding shaft 3 erected above the opening of the building
The shutter curtain 1 is fed out while being guided by guide rails 4 erected on both right and left sides of the building opening by the forward and reverse rotation of the winding shaft 3, and is wound and opened and closed. I have. Reference numeral 5 denotes a side cover which is attached so as to cover the outer side of the bracket. The side cover 5 is made of resin and is attached for the purpose of improving the design of the shutter case 6 which mainly covers the upper part of the shutter. .

FIG. 2 is a perspective view of the bracket of the present invention, and FIG.
Is a vertical cross-sectional view of the window shutter. The bracket 2 is approximately half the size of the side cover 5 and includes a substantially rectangular main body surface 21 as viewed from the front and a skeleton mounting surface 22 for fixing the bracket 2 to the skeleton. The bracket 2 is fixed by screwing it to the frame above the opening. The shutter case 6 is provided at each corner of the main body surface 21.
And a case mounting piece 24 for mounting the case plate to the bracket 2 are formed so as to rise in the direction opposite to the frame mounting surface 22.

Further, a shaft penetrating portion 25 formed by cutting and raising the main body surface 21 is formed at a position along the outdoor side edge 21a at the upper and lower central portions of the main body surface 21. The take-up shaft 3 is formed in a square through hole having a side slightly larger than the diameter of the shaft portion 3a. Reference numeral 26 denotes a cut-and-raised piece formed by being cut and raised from the main body surface, and a skeleton is attached to the position facing the cut-and-raised piece 26 with the shaft through portion 25 interposed therebetween from the outdoor side edge 21a of the main body surface 21. A protruding piece 27 protruding in a direction opposite to the surface 22 is formed. Bolt holes 26a and 27a for fixing the take-up shaft 3 to the bracket 2 with bolts S are formed in the central portions of both the cut-and-raised piece 26 and the protruding piece 27. Further, on the upper side and the lower side of the shaft penetrating portion 25, shaft receiving pieces 28, 28 standing up by about several millimeters in the same direction as the cut-and-raised piece 26 are formed. 27, a bearing portion 29 for fixing the winding shaft 3 to the bracket 2 from the shaft receiving piece 28 is formed. The bracket 2 configured as described above is vertically symmetrical with respect to the center line XX.

Reference numeral 6b denotes an upper surface plate that covers the upper surface of the shutter case 6, and is attached to the upper surface of the bracket 2.
Reference numeral 6c denotes a front plate covering the front portion of the shutter case, and the maximum winding diameter of the winding shaft 3 (Y circle in FIG. 3).
The upper and lower ends of the front plate 6c are fixed to the case mounting piece 24 of the bracket 2 in a shape that does not interfere with the front panel 6c. By covering a side cover 5 having substantially the same shape as the cross-sectional shape of the case, a shutter case 6 covering an upper portion of the shutter including the winding shaft 3 is configured.

The shaft penetrating portion 2 of the left and right brackets 2
5, the shaft portions 3a of the winding shaft 3 are inserted, and the weight of the winding shaft 3 is supported by a shaft receiving piece 28 formed on the lower side of the shaft penetration portion 25. Further, the winding shaft 3 is fixed between the left and right brackets 2 by passing bolts through the bolt through holes 3b formed in the shaft portion 3a and the bolt holes 26a, 27b of the cut-and-raised piece 26 and the projecting piece 27. Supported.

Actually, the winding shaft 3 is connected to the bracket 2
In order to support the shaft, the one shaft portion 3a of the winding shaft 3 is inserted deeply into one shaft penetration portion 25 of the left and right brackets 2 and 2 and further inserted back, and the other shaft portion 3a is inserted into the other shaft penetration portion 25. It is done by a plug-in method. Further, as described above, the shaft penetrating portion 25 is a square through hole having a side slightly larger than the diameter of the shaft portion 3a of the winding shaft 3, and the shaft portion 3a is inserted in the radial direction of the winding shaft 3 by inserting the shaft portion 3a. Is determined, the work of passing the bolt S is also easy, and the process of pivotally supporting the winding shaft 3 on the bracket 2 does not become particularly difficult as compared with the conventional one.

In the bracket 2 of the present invention, since the bearing portion 29 that supports the take-up shaft 3 is formed along the outdoor side edge 21a of the main body surface 21, the size of the side cover 5 is reduced. And a portion where the side cover 5 and the bracket 2 do not overlap when the side cover 5 is mounted on the bracket 2 (the portion of the front plate 6c in the present embodiment) is the portion. Can be handled by the same bracket 2 even if the case shape is different.

In the present embodiment, the bearing portion 29 is constituted by the shaft penetrating portion 25, the cut-and-raised piece 26, the projecting piece 27 and the shaft receiving piece 28, but this is not always necessary.
If the mounting strength of the take-up shaft 3 is sufficient, the take-up shaft 3 may be fixed only by the cut-and-raised piece 26 without forming the protruding piece 27. If the lower side of the shaft penetration portion 25 has a strength capable of supporting the weight of the winding shaft, the shaft receiving pieces 28, 28 are not necessarily required.
It is not necessary to provide.

FIG. 4 shows another embodiment of the present invention, in which a main body surface 21 is cut and raised in the vertical direction of a bracket 2 to form a shaft penetration portion 25. In this case, the winding shaft 3 Fixing each piece 2
6 and 26 can also serve as the shaft receiving piece 28 that receives the weight of the winding shaft 3, and since the outdoor side of the shaft penetration portion 25 is open, the winding shaft 3 can be easily fixed.

FIG. 5 shows an embodiment of the third aspect of the present invention.
And a bearing portion 79 is formed at the center of the main body surface 71 in the vertical direction. 75 is a shaft penetrating portion which is a square hole having a side slightly larger than the diameter of the shaft portion of the winding shaft, and 76 is formed by cutting and raising from the main body surface 71 when forming the hole of the shaft penetrating portion 75. The first cut-and-raised piece 77 is provided so as to face the first cut-and-raised piece 76 with the shaft penetrating portion 75 interposed therebetween, and is formed by cutting and raising from the main body surface 71 opposite to the shaft penetrating portion 75. The second cut-and-raised piece, 78
Is a shaft receiving piece that receives the weight of the shaft, and a bearing portion that supports the winding shaft 3 on the bracket 7 by the shaft penetrating portion 75, the first cut and raised piece 76, the second cut and raised piece 77, and the shaft receiving piece 78. 79 are configured.

FIG. 6 is an enlarged view of the bearing 79 of the bracket, and shows the bent base end 77 of the second cut-and-raised piece 77.
The length L1 of the b is formed wider than the length L2 of the side of the shaft penetrating portion 75 facing the second cut-and-raised piece 77. In this way, the second cut-and-raised piece 77 can be formed by cutting and raising from the main body surface 71 in the direction opposite to the shaft through-hole 75 while facing the shaft through-hole 75. Further, the second cut-and-raised piece 77 can be formed from the side opposite to the shaft penetration portion 75, so that the first
The height of the cut-and-raised piece 76 is the shaft penetrating portion 7
5 and the height of the second raised piece 77 can be formed up to the length L4 of the through hole 71a formed when the main body surface 71 is cut and raised. (The second cut-and-raised piece 77 is connected to the shaft penetrating portion 75
When cut and raised from the side, the first cut and raised piece 76 and the second
Since the cut-and-raised pieces 77 can have a cut-and-raised height of not more than half the length L3 of the side of the shaft penetrating portion 75 at the maximum, bolt holes 76a and 77a for fixing the winding shaft 3 with bolts are formed. And a sufficient space for fixing the winding shaft 3 even if the bolt holes 76a and 77a are formed. In addition, the first and second cut-up pieces 76 and 77 can be formed along a shaft penetrating portion 75 having a side having substantially the same length as the diameter of the shaft portion 3a of the winding shaft 3. Since the first and second cut and raised pieces 76 and 77 are almost in contact with the shaft 3a of the winding shaft 3 when passing through the shaft 3, the shaft 3a of the winding shaft 3 is satisfactorily bolted. Can be fixed. Furthermore, since there is a through hole 71a formed when the second cut-and-raised piece 77 is cut and raised, when the bolt (nut) is tightened with a tool such as a spanner, the tool and the main body surface 71 do not interfere with each other, so that workability is improved. Is improved. In the present embodiment, only the second cut-and-raised piece 77 has the shaft penetration portion 7.
5, but the first cut-and-raised piece 7
6 may be formed in the same manner as the second cut and raised piece 77.

[0018]

According to the first aspect of the present invention, a shaft penetrating portion serving as a bearing portion and a cut-and-raised piece can be formed by cutting and raising the main body surface of the bracket, and there is no need to attach a bearing portion separate from the conventional bracket. Therefore, material and assembly costs for that purpose can be reduced. In addition, there is no danger of the take-up shaft falling due to improper mounting of the bearing portion, and safety is improved. Further, the conventional bracket has a U-shaped bearing portion, so that the bracket cannot be vertically symmetrical. However, the present invention can form the bearing portion by cutting and raising the main body surface, so that the vertically symmetrical bearing can be formed. The part can be manufactured, so that a bracket for both left and right can be manufactured.

According to the second aspect of the present invention, since the bearing portion is formed along the outer side edge of the main body surface, the bracket can be made small, and the material cost can be reduced. In the past, the bracket was almost the same shape as the shutter case, so a dedicated bracket was required every time the case shape changed.However, the bracket can be reduced to almost half the size of the case, so it is smaller than the bracket. Since the shape of the case on the outdoor side is not particularly limited, the shape of many shutter cases can be handled by one bracket. According to the third aspect of the present invention, in addition to the effect of the first aspect, since the cut-and-raised height of the cut-and-raised piece for fixing the take-up shaft can be increased, a bolt hole for fixing the take-up shaft with a bolt is provided. A sufficient space for the formation can be secured, and even if the bolt holes are formed, sufficient strength for fixing the winding shaft can be secured.

[Brief description of the drawings]

FIG. 1 is a front view of a window shutter according to the present invention.

FIG. 2 is a perspective view of a bracket according to the present invention.

FIG. 3 is a longitudinal sectional view of a window shutter according to the present invention.

FIG. 4 is a perspective view showing another embodiment.

FIG. 5 is a perspective view showing another embodiment.

FIG. 6 is an enlarged view of a bearing part in FIG. 5;

FIG. 7 is a perspective view of a conventional bracket.

FIG. 8 is a longitudinal sectional view of a conventional window shutter.

[Explanation of symbols]

 2, 7 Bracket 21, 71 Body surface 21a Outdoor side edge 22 Body mounting surface 25, 75 Shaft penetrating part 26 Cut-and-raised piece 26a, 76a Bolt hole 27 Projection piece 27a, 77a Bolt hole 28, 78 Shaft receiving piece 3 winding Shaft 3a Shaft 5 Side cover 6 Shutter case 76 First cut and raised piece 77 Second cut and raised piece 77b Bending base end

Continued on the front page (72) Inventor Hirohiro Kajiya 2-1-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Sanwa Shutter Industrial Co., Ltd. (72) Inventor Katsutoshi Koiwa 2-1-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo WA Shutter Industrial Co., Ltd.

Claims (3)

[Claims] A side part of a shutter case is composed of two members, a side cover and a bracket, and the bracket is composed of a main body surface having a bearing portion for supporting a take-up shaft and a frame mounting surface fixed to the frame side. The bearing portion is composed of a shaft penetrating portion formed by cutting and raising the main body surface of the bracket and a cut and raised piece cut and raised from the main body surface of the bracket, and the cut and raised piece has a winding shaft. A bracket structure for a window shutter, wherein a bolt hole for fixing with a bolt is formed. 2. A bracket structure for a window shutter according to claim 1, wherein said bearing portion is formed along an end of the bracket body on the outdoor side. 3. A bracket structure for a window shutter in which a side portion of a shutter case is composed of two members, a side cover and a bracket, wherein the bracket is fixed to a body surface having a bearing portion for supporting a winding shaft and a frame. The main body surface is formed with a shaft penetration portion through which a shaft portion of a take-up shaft can penetrate, and a cut-and-raised piece formed by cutting and raising the main body surface is formed through the shaft penetration portion. The shaft penetrating portion and each cut-and-raised piece constitute a bearing portion, and the length of the bent base end of at least one of the cut-and-raised pieces is the length of the cut-and-raised piece of the shaft penetrating portion. A bracket structure for a window shutter, which is formed to be longer than the length of a side adjacent to the window shutter.