| US4690193A | 1987-09-01 | |||
| US5343922A | 1994-09-06 | |||
| US5901771A | 1999-05-11 |
| 1. | A rolling shutter, allowing penetration of a large volume of light and air, even as the stages are at the lower position, as this is an additional situation, providing a significant addition of safety in comparison with other shutters. This is a shutter built of two profiles, different from one another, as there is an external profile and an internal profile, and the profiles are inserted one into the other along the length of the profile, the external profile is sealed, while the internal profile is perforated throughout its length. The shutter has three positions, a closed position in which the internal profile is concealed and inserted in the opening of the external profiles, as half of it is concealed in the upper profile and another half is concealed in the lower profile. In this position, the external profiles are mounted one on top of the other, and the shutter is sealed against light and air. In the open position, the external upper profile rolls up until it reaches the cog and/or the hook, which is in the internal profile, and then it brings up the internal profile. As the internal profile rolls up until it reaches the cog andlor the hook and lifts up the external lower profile, this is a position in which the internal profile is exposed. The internal profile consists of holes or openings throughout its lengths, the height of which is according to the size of the gap resulting between the two external profiles. As the internal profile is inserted and connects between them, through the opening of the internal profile light and air penetrate ; and a third position in which the shutter is rolled up and the window or the opening is entirely exposed. |
| 2. | A rolling shutter, as described in Claim No. 1, having an external profile with 2 walls, external and internal, and two connecting walls that are connecting between the external and internal walls in a shape similar to the letter H with a double connection in the center, as in both edges of the internal wall there are bulges or cogs and/or bending, which reduces the size of the upper and lower opening, their function is also to prevent the internal profile from going out of its rail and also in order to lift it up. |
| 3. | A rolling shutter, as described in previous Claims, as the internal profile is half way inserted into the upper external profile and half way into the lower external profile, and as the internal profile is either in contact and/or adjacent at two points at the upper part with two other points at the end of the lower opening of the upper profile, being in contact and/or adjacent to two additional points at the central part of the internal profile with two points at the end of the lower opening or the upper profile and in four additional points at the opening of the upper opening of the lower profile. |
| 4. | A rolling shutter, as described in previous Claims, having an internal profile, which resemble a stretched C and/or a profile having an upper hook and a lower hook pointing one toward the other between the upper and lower hooks, there is a wall connecting them, which is the central part of the profile in same wall. There are holes or punctures throughout the length of the profile, allowing penetration of light and air through the shutter. |
| 5. | A rolling shutter, as defined in previous Claims, having a possibility of inserting more than one internal profile, which would be shorter than the external profile with gaps between the internal profiles, presenting a bridge between the external profiles and as the gap between the internal profiles determine the quantity of light and air penetrating through the shutter. |
| 6. | A rolling shutter, as defined in previous Claims, having an external and an internal profiles. As the shutter is in its lower position, the external profiles are mounted one on top of the other and the shutter is sealed against light and air, and the internal profiles are concealed within the external profiles. |
| 7. | A rolling shutter, as defined in previous Claims, having an opening position, in which the internal profiles are exposed, and thereby allow penetration of light and air through the openings in the profile, even as the profiles are in their lower position. |
| 8. | A rolling shutter, as defined in previous Claims, having two profiles different from one another, which could be made of aluminum or plastic. |
| 9. | A rolling shutter, as defined in previous Claims, which rolls both mechanically and by means of an electrical engine. |
However, the greater disadvantage is that there is no position, in which the shutter is at its lower position and still light and air can penetrate through the shutter, as in this position, there is of almost pitch darkness.
The rolling shutter market offers several solutions, one of these solutions is that the stages of the shutter can revolve around an axis, and then light and air can penetrate into the room, similarly to the slatted shutter, in which the stages revolve around an axis.
There is also a shutter, in which the stages go apart from one another, and then light and air penetrate, even if the shutter is in its semi closed position.
The disadvantage of these solutions is that the stages of the shutter are clipped only at the edges, by means of an expensive and awkward system of chains.
Description of the Invention In a normal shutter, the stages of the shutter folds one into the other in such a manner that the lower part of the uppermost stage is inserted into the upper part of the lower stage and so forth. According to this invention, there are two kinds of profiles, one is a wide external profile with an upper opening and a lower opening and the other is a narrow internal perforated profile, as the narrow internal profile is inserted into the wide external profile at both upper and lower parts.
By virtue of the special structure of the profiles, one half of the narrow perforated profile is inserted into the upper wide profile and the other half is inserted into the lower wide profile, as the shutter is in its closed position.
As the shutter is in its semi closed position, half of the narrow profile protrudes from the lower profile and one half from the upper profile and then it is possible to obtain penetration of both light and air through the holes in the narrow profile.
The advantage presented in this invention is that in any position even in a semi opened position, the stages are integrated one into the other, a position not enabled in any of the shutters available on the market.
The shutter, according to the invention, allows penetration of light and air, even when the stages are combined one into the other.
Description of the Shutter The shutter consists of stages, which are combined together, as there are two kinds of profiles: a wide profile and a narrow profile. as described in fig 1 The wide profile 1 and the narrow profile 2, the wide profile 1 is a profile having a double siding, sides 3 and 4.
Normally, side 3 is the external side and it is arched, and side 4 is the internal side curving inward. Sides 3 and 4 are connected by means of reinforcement walls 9 and 10, as the distance between the edge of the profile and the reinforcement side is half of the height of profile 2.
There are openings at the edges of the sides, in the upper opening and a lower opening, the upper opening 5 and the lower opening 6, and the edges of the internal side, side 4- there are 2 cogs, upper cog 7 and lower cog 8.
The second profile 2-this is the narrow profile, which is inserted into wide profile 1.
At the edges of profile 2, there are 2 cogs pointing at the same direction, the upper cog 13 and the lower cog 12. The profile 2 is an arched profile, as point 14 indicates the highest level of height. In order that the shutter shall function in a proper and correct manner, several conditions should be met, which are in contradiction with one another.
In order that profile 2, which is inserted into the openings shall freely shift up and down and roll smoothly, it is required that openings 5 and 6 shall be as wide as possible.
However, in the event that openings 5 and 6 are wider and internal profile 2 shifts up and down and rolls freely, and in part due to this extensive freedom of move, the upper profile is not always mounted on the lower profile. In order to avoid the phenomenon of noises and also in order to assure that the upper profile shall definitely decent and be mounted on the lower profile, bulges 15 and bulges 16 and 17 are included in profile 2 As described in fig 4 The Action of the Shutter In order to explain the action of the shutter, it should be first indicated that opening 5 at the upper part of wide profile 1 and opening 6 at the lower part of profile 1-these openings are smaller than the width of cogs 12 and 13 in the narrow profile 2. as describedin fig 3 As the shutter is in its closed position, as described in Sketch 1, narrow profile 2 is inserted at its upper part 13 into opening 6, which is located at the lower part of wide profile 1 and the lower part of narrow profile 2 is inserted into the upper opening of
wide profile 1, opening 5.
As the shutter is in a semi opened position, as described in Sketch 2, the wider profile rise up, lower cog 8 of the wider profile bumps into the upper cog of narrow profile 13, and bearing in mind that the opening 6 in the wider profile is smaller than the width of cog 13 in the narrow profile, then the lower part 6 of the upper profile 1 catches the cog 13 of the narrow profile 2.
Because cog 13 is wider than opening 6 of upper profile 1 it lifts up the lower narrow profile 2.
As the narrow profile 2 goes up, the lower part of the narrow profile 12 is inserted into the wide profile 1, catching on cog 7 in the wide profile 1, and because the width of cog 12 is larger than opening 5 in the wide profile 1, the narrow profile 2 pulls up the wide profile 1 and so on, one profile after the other and the shutters go up or down.
There are holes in side profile 2 along its length, these are holes 11. Through these holes air and light penetrates, as the shutter is in a semi opened position, as described in Sketch 2.
As the shutter is in its closed position, internal profile 2 is located within the openings of external profiles 5 and 6, as one half of it is in the lower opening of the upper profile and the other half is in the upper opening of the lower profile. In this position of the shutter, points 16 and 17 are adjacent or very close to the internal sides of the external profiles on one side and bulge 15, which is in internal profile 2, and same points 16 and 17 are also adjacent or very close to hooks or bulges 7 and 8, which are in the external profiles.
Points 18A and 18B, which are in internal profile 2 at its upper part, and points 19A and 19B in the lower part of internal profile 2 are contact points and/or adjacent points between the internal profile and the external profiles.
As the shutter is in a closed position and the upper profile is mounted on the lower profile, the internal profile is located between them, stabilizing them at 8 points of contact and/or adjacent point, four points at the upper profile-15, 16,18A, 18B, and four points at the lower profile-15,16,19A, 19B. By virtue of same 8 points, the operation of the shutter is more silent and more stable, assuring that the profiles as they decent one on top of the other shall fall down accurately, and as the 8 points cancel the free space only in a situation whereby the profiles, at the lower position, do not require said free space. In the upper position of the profiles, as described in Sketch 6, a position requiring free space, the shutter shall roll, as contact points 15,16 and 17 are no longer in contact with the internal side of the external profiles.
Due to its special structure, as described in sketch 3, there is a possibility of inserting the narrow profile 2 into the wide profile 1, while the wide profile takes up a minimum width, because of arching 14 in profile 2.
Even when the wide profile is arched, as described in the Sketch, it is possible to insert into it an additional profile. This is the narrow profile 2, that being without increasing the width of wide profile 1.
Sketch 4 describes the shutter, as the profiles are inserted one into the other, as they are in a straight or folded position, and it can be observed that the profiles takes a minimum width, allowing the rolling of the shutter in a minimum parameter. as described insketch 4