CURVED ZIPPER, METHOD OF APPLYING A CURVED ZIPPER, ASSEMBLY SET AND PRODUCTION TOOL FOR A ZIPPER
The invention relates to an insulated curved zipper with two zipper chains extending adjacent to one another in the longitudinal direction in a zipper plane, wherein the zipper is made curved in the zipper plane in at least one curve portion, wherein at least one fastening tape made curved in each case in the zipper plane for application to a flat element is arranged in each case in at least one curve portion on each of the zipper chains.
This patent application is filed herewith for the U.S. National Stage under 35 U.S.C. §371 and claims priority to PCT application PCT/EP2011/003259, with an international filing date of Jul. 1, 2011. The contents of this application are incorporated in their entirety herein.
STATEMENT REGARDING FEDERALLY-SPONSORED RESEARCH OR DEVELOPMENTNot applicable.
TECHNICAL FIELDThe invention relates to an insulated curved zipper according to the preamble of Claim 1, tools for the production of the curved zipper, a method of sealing a wall opening in a manner capable of being opened, as well as an assembly set with a foil and an insulated curved zipper.
BACKGROUND OF THE INVENTIONCurved zippers are known in principle from the art. A method of producing a curved zipper is known from EP 0 364 294 A2, in which a carrier tape of swelling fibers is produced, so that the fibers swell as a result of the application of a solvent to the carrier tape and the zipper assumes a curved shape. The shape is not retained permanently. The method is not suitable for production by machine, and it is expensive.
In addition, a curved zipper incorporated into a tent is known from FR 2 882 384.
A curved zipper in a cryonic suit is disclosed in DE 32 18 390 A1, and a frame for sealing off dust is disclosed in DE 20 2006 010 617 U1, a door capable of being opened being provided in the frame. In this case the shape of the curve is achieved in that the zipper is curved in the running direction. Narrow radii are achieved only by curving the zipper at least locally in the running direction.
DE 7122407 A relates to a bent zipper with carrier tapes which are cut in the region of the bend and which extend along the two zipper chains, there being provided on the inside of the bend notch shaped cuts which allow the bent zipper to be sewed in without overlaps.
A zipper with two carrier tapes is known from DE 2 038 038. In this case, however, the zipper is used for application on the human skin in order to close incision wounds formed during an operation. The zipper is applied to the portion of the skin before the operation, is opened and the incision is then made in the opened zipper and the operation is performed.
The zippers are sewed into articles of clothing, tent sheets or the like and acquire their curvature only during the sewing procedure.
BRIEF SUMMARY OF THE INVENTIONIt is the aim of the invention to make available a zipper which is capable of being easily incorporated in a curved form in a flat medium as well as tools for the production of the zipper. It is also an aim of the invention to make available a method of sealing off a wall in a manner capable of being opened, as well as an assembly set by which such a seal is capable of being produced.
The aim is achieved in its first aspect by a zipper named in the introduction and with the features of Claim 1 and in its second aspect by a multipart production tool according to Claim 12, and in its third aspect by a method with the features of Claim 5. The aim is also achieved in a fourth aspect by an assembly set according to Claim 11.
In its first aspect the invention makes use of the concept of making available an insulated curved zipper which retains its curved shape in a permanent and dimensionally stable manner, so that application to a flat element, such as a textile, in particular an article of clothing or a tent cover, or to a foil or the like, is facilitated. To this end, along its two zipper chains extending adjacent to one another the zipper has in each case at least one fastening tape of curved shape which keeps the zipper in its curved shape in a permanently dimensionally stable manner. The zipper in this case has a curved shape in a zipper plane which is formed by the zipper chains which extend adjacent to one another. An insulated zipper should be understood in this case as being the zipper as an article of notions. The insulated zipper is made available in an insulated manner from the textile or foil or the like. It is not arranged or fastened on a flat piece of material.
It is advantageous for there to be arranged at each of the zipper chains in each case at least one carrier tape cut in a multiplicity of times transversely to the longitudinal direction, and the tape portions formed by the incising are displaced with respect to one another in order to form the curved shape of each carrier tape. In this as also in other contexts, “at least one” should be understood and is disclosed as one, two or any other higher natural number. Along each carrier tape there is provided one of the fastening tapes. The two fastening tapes extending along the two cut in carrier tapes are preferably joined to the carrier tapes in a load resistant and position fixed manner, and in this way they fix the curved shape in a permanent manner and thus allow the insulated curved zipper to be introduced, in particular by gluing or sewing, into a flat element, such as a tent cover, a film, an article of clothing, in a convenient and time saving manner.
It is preferable for an outer side of the at least one fastening tape facing away from the slider to be provided with an adhesive coating by which the zipper is capable of being glued to a film.
In another further development of the invention the at least one fastening tape, and preferably each of the fastening tapes, is arranged at a distance from and along an associated zipper chain in the curve portion. The carrier tape can be sewn by means of a seam onto a textile along the gap resulting from the distance between the zipper chain and the fastening tape. The fastening tape advantageously consists of polyester which is capable of being fastened first to the carrier tape by heating and after the sewing is capable of being removed from the carrier tape again by repeated heating.
The invention relates in its second aspect to a multipart production tool for producing the curved zipper. One part has a curved fixing tool with a curved groove which is formed between two springs and the width of which is adapted to the distance between the zipper chains. The side of the zipper chains facing the slider is inserted into the groove, so that the two carrier tapes project laterally beyond the springs of the fixing tool. The fixing tool is then pressed onto a surface, and at least one of the curved fastening tapes is glued or welded or the like on to the side—facing the slider—of each of the carrier tapes facing laterally away from the fixing tool. A conventional zipper is selected in advance, and the two carrier tapes extending along the zipper chains are cut in laterally, at a right angle to the longitudinal direction. The carrier tape on the inside of the curve is provided with notched incisions, punched in or burnt in portions, whereas the carrier tape on the outside of the curve is provided with straight incisions, punched in or burnt in portions. The burnt in portions can be produced with the aid of heating rods, heating wires or the like. A second part of the production tool has a plate with a groove which is likewise curved, in which case a radius of curvature of the curved groove of the plate and a radius of curvature of the curved groove of the fixing tool correspond and are between 10.5 cm to 13.5 cm in each case. When curved zippers are produced from plastics material zipper chains, radii of curvature of up to less than 10.5 cm can be employed, whereas in the case of zippers with steel zipper chains radii of under 13.5 cm are not practicable since the slider remains suspended in the curve of the zipper.
The aim is achieved in its third aspect by a method of applying the curved zipper to a flat element.
In particular, during the renovation of inner rooms there is frequently the requirement to seal off wall openings in the form of door openings or window openings in order to keep in the room the dust which is formed. To this end, the wall opening is sealed off in a substantially completely dust tight manner with a foil capable of being cut. The foil is laid on the wall opening to this end and by means of adhesive tapes it is fixed at the side of the wall opening and is fixed to the base at the bottom. According to the invention the insulated curved zipper is applied, and in particular glued, in a closed form to the wall opening sealed off by the foil. The curved zipper is preferably made U-shaped and is arranged with its open U side advantageously at the top, on the side toward the ceiling. In addition, L-shaped zippers and C-shaped zippers with open sides toward the left or right are possible.
After that, the zipper is opened and the foil is cut along the zipper opening between the two zipper chains. In this way, there is formed a door capable of being opened in the seal of the wall opening.
In a further development of the method according to the invention the curved zipper is sewed on to a textile surface. To this end, at least one seam is inserted between the zipper chain and the fastening tape arranged at a distance from the zipper chain. The curved zipper is fastened to the textile by means of the seams. The textile can be already divided during the sewing of the zipper. On the other hand, the closed, sewed zipper is preferably opened after the sewing and the textile is cut through between the opened zipper chains. The fastening tape preferably consisting of polyester can be heated beforehand or afterwards and can be released from the zipper in order to increase the wearing comfort.
The aim is achieved in its fourth aspect by an assembly and kit for sealing of, in a manner capable of being opened, a wall opening with a foil capable of being cut and an insulated curved zipper, as was described above.
The invention is described in eleven Figures with reference to one or more embodiments as follows:
The zipper 1 according to the invention is a further development of a conventional zipper. It has a first zipper chain 2 and a second zipper chain 3 which are hooked into one another by means of a slider 4 displaceable in a reciprocating manner for closure and which are pulled apart from one another for opening. The zipper 1 has a longitudinal direction L which is variable along the zipper 1 but which always extends in one zipper plane E. The zipper plane E is spanned by the two zipper chains 2, 3 arranged adjacent to one another. The zipper 1 is made doubly curved in the zipper plane E in
Along the two zipper chains 2, 3, extending adjacent to one another there is provided in each case a carrier tape 6, 7. In the curve portion B1, B2 each of the carrier tapes 6, 7 is cut substantially along its entire width transversely to the longitudinal direction L. A cutting pattern illustrating the cuts is shown in
As shown in
1 zipper
2 zipper chain
3 zipper chain
4 slider
6 carrier tape on the inside of the curve
7 carrier tape on the outside of the curve
8 side facing away from the slider
9 side toward the slider
11 fastening tape facing away from the slider and on the inside of the curve
12 fastening tape facing away from the slider and on the outside of the curve
13 fastening tape toward the slider and on the inside of the curve
14 fastening tape toward the slider and on the outside of the curve
20 linear incision
21 linear incision
22 groove
23 tool
30 copper tube
31 springs
32 groove
35 copper plate
36 groove
40 door
41 wall opening
42 foil
43 adhesive tape
44 wall
45 bottom
L longitudinal direction
E zipper plane
A1 straight portion
A2 straight portion
A3 straight portion
B1 curved portion
B2 curved portion
r radius of curvature
Claims
1. An insulated curved zipper comprising:
- two zipper chains extending adjacent to one another in a longitudinal direction in a zipper plane, wherein the zipper is made curved in the zipper plane in at least one curve portion and there is arranged at each of the two zipper chains in each case at least one carrier tape cut in a plurality of times transversely to the longitudinal direction, characterized in that at least one fastening tape fixing the curved shape of the zipper in the zipper plane in a permanent manner in the curved state is arranged in the at least one curve portion along each carrier tape.
2. An insulated curved zipper according to claim 1, characterized in that the at least one fastening tape has an adhesive outer side for adhesion to a flat element.
3. An insulated curved zipper according to claim 1, characterized in that the at least one fastening tape is arranged at a distance from and along the zipper chains in the curve portion.
4. An insulated curved zipper according to claim 2, characterized in that the at least one fastening tape is arranged at a distance from and along the zipper chains in the curve portion.
5. An insulated curved zipper according to claim 3, characterized in that the at least one fastening tape is comprised of polyester.
6. An insulated curved zipper according to claim 1, further comprising a wall opening that is substantially covered with a foil capable of being cut, the closed insulated curved zipper glued to a side of the foil, so that as the glued zipper is opened, the foil is cut through between the zipper chains.
7. An insulated curved zipper according to claim 6, further comprising an assembly set including the foil capable of being cut and the insulated curved zipper.
8. A method of applying a curved zipper to a flat element, comprising:
- permanently fastening an insulated curved zipper having two zipper chains extending adjacent to one another in a longitudinal direction in a zipper plane in a fixed manner to a flat element so that the fastened zipper is opened and the flat element is cut through between the opened zipper chains, wherein the zipper is made curved in the zipper plane in at least one curve portion and there is arranged at each of the two zipper chains in each case at least one carrier tape cut in a plurality of times transversely to the longitudinal direction, and wherein at least one fastening tape fixing the curved shape of the zipper in the zipper plane in a permanent manner in the curved state is arranged in the at least one curve portion along each carrier tape.
9. A method according to claim 8, further comprising sealing off a wall opening in a manner capable of being opened, in that the wall opening is covered substantially completely with a foil capable of being cut, and the closed insulated curved zipper is glued to a side of the foil, and the glued zipper is opened, and the foil is cut through between the zipper chains.
10. A method according to claim 9, characterized in that the zipper with remnants of foil remaining on its adhering outer side is cut out of the remaining foil, and the remnants of foil are pulled off from the adhering outer side only before a further use of the zipper.
11. A method according to claim 8, further comprising sewing the curved zipper into a textile, in that the insulated zipper is sewed to the textile with at least one seam in each case between the zipper chain and the associated fastening tape arranged at a distance from the zipper chain.
12. A method according to claim 11, characterized in that the sewed zipper is opened and the textile is cut through between the two opened zipper chains.
13. A method according to claim 11, characterized in that the fastening tape is heated and is then released from the sewed in zipper.
14. A method according to claim 12, characterized in that the fastening tape is heated and is then released from the sewed in zipper.
15. A multipart production tool for a curved zipper, comprising:
- a curved fixing tool having a curved groove, a width of which is adapted to a distance between two zipper chains and which has a radius of curvature of between 10.5 cm to 13.5 cm, and a plate having a curved groove, the radius of curvature of which corresponds to the radius of curvature of the fixing tool.
16. A multipart production tool according to claim 15, characterized by a plate with a straight groove.
Type: Application
Filed: Jul 1, 2011
Publication Date: Aug 15, 2013
Inventor: Stefan Wehner (Hamburg)
Application Number: 13/809,208
International Classification: A44B 19/32 (20060101); A44B 19/42 (20060101); A44B 19/34 (20060101); D05B 35/06 (20060101);