JPS5829733Y2 - Window frame for round window - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of a picture frame in a window frame for a round window.

In window structures, it is common to provide a frame on the indoor side that is connected to the window frame.

In this way, if the frame is a square window with a general window structure, it can be assembled by interconnecting four sections in the same way as the outer frame of the window. In this case, it must be manufactured by bending a single frame into a peripheral frame.

In other words, a long profile made of aluminum or its alloy is bent, its ends are connected together, and then fixed by means such as brazing. Fix it to the outer frame 3 with screws 4.

However, conventionally, as shown in FIG. 6, the frame material for the picture frame 2 has been a wide horizontal piece 5 with a substantially horizontal U-shape in vertical section.
a, a vertical piece 5C hanging integrally from one end of this horizontal piece 5a, and the wide horizontal piece 5a from the tip of this vertical piece 5C.
Since the shape material 5 was made up of a narrow horizontal piece 5b that was integrally extended so as to be horizontal, when the above bending process was performed, the cross section after the process was as shown in Figure 7 A9. The shape was considerably distorted and deformed, causing inconvenience in use.

That is, the shape material 5 having the cross-sectional shape shown by the solid line in the opening of FIG.
(in other words, the center of the bending radius exists above) and the bending process is performed using a bending roller, for example, along a bending plane parallel to the longitudinal section of the drawing. A rough explanation of strain deformation is as follows:
When this profile 5 is subjected to a certain bending moment, when the cross section of the profile 5 is viewed as a whole, there is a compressive stress on the upper side of the neutral axis passing through the center of gravity of the profile, and on the lower side in the figure. Tensile stress will be applied, but when looking at the state of action of compressive and tensile stress on each cross section of the wide horizontal piece 5a, vertical piece 5C, and narrow horizontal piece 5b that make up this mold 5 , some compressive stress and tensile stress are generated on the upper surface side and the lower surface side of the free end portion (the left end portion in the figure) of the wide horizontal piece 5a, respectively, but on the neutral axis la of the horizontal piece 5a in the middle thereof. At point a, there is almost no stress and neither expansion nor contraction occurs, while at point a on the right end opposite to point a on the free end side, the wide horizontal piece 5a exists alone. If so, there will be no expansion or contraction as with point a, but since the vertical piece 5C is vertically installed, the upper end of the vertical piece 5C, that is, the above point, will be centered on the neutral axis 1C of this vertical piece 5C. Considerable compressive stress acts on the horizontal piece 5a, which causes a stress difference between points a and b at both ends of the horizontal piece 5a.

The same thing can be said about the narrow horizontal piece 5b having such a relationship; at point C at the left end on the neutral axis lb of this horizontal piece 5b, the stress is almost equal to zero, and at point d at the right end, there is a considerable tensile stress. Stress acts.

Therefore, let the length of the shape material 5 be Lo, and the strains at points a-d are εa, εb, and εC9εd, respectively, and the shrinkage in the length direction of the shape material due to the compressive stress acting on point b is Δld, which acts on point d. If the elongation due to tensile stress is △ld, then 6 a=o, ε
b (negative)=△lb/Lo, and εc=o, εd(
Correct)=Δld/Lo.

Therefore, the free end side of the left-handed wide horizontal piece 5a obtained by actually bending the profile 5 is bent as shown by the chain double-dashed line in Figure 7 in order to cope with the negative strain occurring at the opposite end. It is deformed to a state where the bending radius is widened, and the narrow horizontal piece 5
In response to the positive strain occurring at the opposite end, the free end of b is deformed to a state in which the bending radius is narrowed, as shown by the two-dot chain line in the figure.

Once such deformation occurs, it becomes difficult to connect the picture frame 2 and the window outer frame 3, and since the picture frame 2 is exposed on the interior surface of the room due to its purpose, the aesthetic appearance is significantly impaired. .

One purpose of the present invention is to eliminate the above-mentioned drawbacks of conventional round window frames.

Still another object of the present invention is to provide a frame for a round window frame having a mounting structure that allows the frame cover provided on the frame for a round window frame to be attached very easily.

Hereinafter, an embodiment of the present invention will be described. As shown in FIG. Hanging wall portions 9, 10.1 having the required amount of protrusion at right angles at three positions.
1 are integrally protruded in parallel, and furthermore, these hanging wall parts 9,
10.11, a pair of hanging wall portions 10.11 with a slightly shorter relative gap on the right side in the drawing are formed with grooves 12 and 13 facing each other at the tips of these hanging wall portions 10.11. There is.

This molded material 7 is subjected to a required bending process with the surface on which the hanging wall portions 9, 10.

By the way, when performing the above-mentioned bending process, the shape material 7 has hanging wall portions 9 and 11 at both ends in the width direction of the flat plate band portion 8, and a hanging wall portion 10 is integrally provided in the intermediate portion thereof. Moreover, since the cross-sectional shape in the left and right width directions is approximately symmetrical with respect to the widthwise center of the flat plate band portion 8, the compressive stress (
In addition to the compressive and tensile stresses acting on the inner surface (inner surface) and tensile stress (on the outer surface), these compressive and tensile stresses also act approximately uniformly across the width of the shape, so that depending on the above bending process, the No distortion or deformation occurs.

That is, in this profile 7, since the hanging wall portions 9, 11, 10 are integrally arranged in parallel at both ends of the flat plate band portion 8 in the width direction and the intermediate portion thereof, these hanging wall portions 9 are
. Since it acts on both widthwise ends of the band portion 8 and the intermediate portion thereof, no so-called stress difference is generated between the widthwise both ends of the flat plate band portion 8, and therefore no strain deformation occurs.

In short, the hanging wall portions 9 and 1 located at both ends of the flat plate band portion 8
1 and the hanging wall part 10 located in the middle part, the flat plate band part 8
This means that the stress difference in the width direction is ideally eliminated.

On the other hand, these hanging wall parts 9, 11 and 10 form an L-shaped angle shape on both sides of the molded material 7, and a T-shaped angle shape in the middle part, so that they serve to significantly improve the strength of the molded material 7. Fulfilling.

Therefore, the cross-sectional shape of the frame main body 14 is maintained accurately, and the frame main body 14 can be securely and integrally connected to the window frame 3 as shown in FIGS. This leads to an improvement in performance.

When the frame main body 14 is integrally connected to the indoor side of the window frame 3 as described above, the hanging wall portion 10.11 is located closer to the indoor side than the decorative board 16 as shown in FIG. The opening between the raindrop walls 11 and 10 is exposed, which is unsightly.

Therefore, in the present invention, the frame cover 17 is made of a long flat plate that can be easily bent while the frame 7 is made into a peripheral frame by bending.
is inserted over the entire circumference of the frame main body 14 via the above-mentioned grooves 12 and 13 to cover the opening, thus forming a frame consisting of the frame main body 14 and the frame cover 17.

The reason for attaching the frame cover 17 separately in this way is that if the frame cover 17 part was manufactured in advance by being integrated with the hanging wall part 10.11, the cross-sectional shape of this part would be square and the other part would be attached to the hanging wall part 10.11. The strength is significantly greater than that on the wall portion 9 side, and due to the asymmetry of the left-right shape of the formwork and the unbalanced strength between the left and right sides, strain deformation occurs due to stress differences during the bending process.

Note that FIGS. 1 and 3 show an embodiment in which a frame is provided on the indoor side of a window frame for a round window.

3 and 6, 18 is a building wall, 19 is a glass plate, 20.20 is a packing member for attaching the glass plate to the window frame 3, and 21.21 is a packing member 20.2.
0 fitting groove.

Figures 4 and 5 show another embodiment of the present invention in which a frame is integrally provided on the outdoor side of the window frame for a round window. One is built into each window outer frame 26 and a picture frame main body 27 integrated therewith so that it can be opened outward about a hinge 24, and the other one can be opened inward about a hinge 25.

28.28 is a locking means for maintaining the closed position of each window sash 22.23.

When the round window 1' is equipped with a pair of inner and outer window shoji 22, 23 in this way, the thickness of the round window 1' becomes larger than the thickness of the building wall 18', as shown in the figure, and the frame body 27 This will protrude outward from the outer surface of the roof wall 18'.

In this embodiment, a frame main body 27 is formed of a molding material 7' similar to the molding material 7 illustrated in FIG.
and the frame body 27 constitute a frame.

Therefore, the effect obtained by this outdoor picture frame 27 is the same as that of the indoor picture frame in FIG.

In this way, the present invention provides hanging walls integrally protruding in three places in parallel at both ends in the width direction of the flat plate band part and a position near the middle position, so that the left and right widths are increased with respect to the center of the width direction of the flat plate band part. Since the cross-sectional shape in the direction constitutes a shape material that exhibits a roughly symmetrical shape,
When the frame body is formed by bending the frame, compressive stress and tensile stress act evenly on the left and right surfaces of the frame, preventing large distortions from occurring.

Moreover, both sides of the molding material have an L-shaped angle shape that is strong and sturdy.
Also, since the intermediate portion has a T-shaped angle shape, the strength of the frame body can be significantly improved.

Therefore, the finished dimensional accuracy of the picture frame as a product is improved, and its appearance becomes beautiful, thereby significantly increasing its commercial value.

Particularly, the present invention has a pair of adjacent hanging wall portions of the frame main body formed with grooves facing each other, and a long flat plate that can be easily bent along both grooves. By simply inserting this long flat plate into the double-concave groove from one end, a picture frame cover with a shape that accurately corresponds to the arbitrary curved shape of the frame body can be inserted into the double-concave groove. It can be formed very easily and quickly along the grooves, and therefore there is no need for special bending of a long flat plate or difficult work for fitting it into the frame body, making it easy to manufacture picture frames. It is possible to reduce costs by doing so.

[Brief explanation of the drawing]

Fig. 1 is a front view of a round window using the picture frame according to the present invention, Fig. 2 is a sectional view of the frame forming the main body of the picture frame, and Fig. 3 is a front view of a round window using the frame according to the present invention.
Figure 4 is a front view of a round window with another shape, Figure 5 is an enlarged cross-sectional view of its main part, Figure 6 is an enlarged view of a round window taken along the line A-A.
A cross-sectional view showing an example of the use of a conventional picture frame corresponding to the figure, Fig. 7 A is a perspective view showing a conventional frame main body material that has been distorted by bending, and Fig. 7 shows the same conventional shape material during bending. FIG. 2 is a cross-sectional view illustrating a state in which strain deformation occurs in FIG. 7.7'...Shape material, 8...Flat plate band part,
9,10.11... Hanging wall part, 12.13...
... Concave groove, 14 ... Frame body, 17.17
'... Long flat plate, 27... Picture frame body.

Claims (1)

[Scope of utility model registration request] On one side of the flat plate imperial city, hanging walls having the required protruding amount at right angles are provided in three places, at both ends in the width direction of the flat plate band part and at a position near the middle, in a parallel manner, so that the flat plate band part Aluminum or The frame body is formed by curving the frame material so that the flat band part is on the inner periphery side and the hanging wall part is on the outer periphery side, and the frame body is curved along the double concave grooves of the frame body. A picture frame for a round window frame, which is made by inserting a picture frame cover made of a long flat plate that can be easily bent.