| Title of Invention | A YARN CENTER MADE FROM MOLDED THERMOPLASTIC RESIN |
|---|---|
| Abstract | ABSTRACT- 758/MAS/96 The present invention relates to a yam center made from molded thermoplastic resin on which yam is wound into packages, said center having a yarn support body with at least one annular zone at one end thereof for winding turns of reserve yam, said annular zone being provided with an edge and yam holding means associated with said edge for holding the yam characterized in that said holding means has a guide notch beginning in said edge of said annular zone and a diaphragm portion of very little thickness made such that it can be torn by the yam which is inserted and forced into said notch and into said diaphragm portion said diaphragm portion being formed approximately transversely to said guide notch. |
| Full Text | It is well known that supports (cylindrical, conical or frustoconical centers) on which yarn is wound to form packages intended to undergo subsequent processes dyeing, warping, weaving or other uses are usually provided with an annular zone on one or both sides of the support, this annular zone being used to wind a number of turns of "reserve" yarn available and intended for joining to the yarn of a subsequent package; currently, the reserve yarn end is fastened somewhat precariously using random means which are rather impractical and unreliable. The invention aims to solve this problem in an extremely satisfactory way. For this purpose, the support comprises — in this example in said annular zone — a guide notch beginning in the edge and combined with a diaphragm portion of very little thickness which can be torn by the yarn which is inserted and forced into said notch and into said portion of very little thickness. Said portion of very little thickness can be formed approximately transversely to said guide notch, and preferably extends out on either side of said guide notch. However, it would also be possible for the zone of very little thickness to be orientated in a different way, as long as it begins in the base of said notch. 3, as may be clearly seen in particular in Fig. 3. However, it may have a different shape and/or orientation, depending on the molding process chosen. In all cases, however, this thin diaphragm 9 must be located at the tip of the notch 3. The diaphragm 9 is formed from the same thermoplastic materials which is used to injection—mold the center and must be thin enough that it can be torn by forcing the yarn against it. WE CLAIM: 1. A yam center made from molded thennoplastic resin, on which yarn is wound into packages, said center having a yam support body with at least one annular zone (IA; IB) at one end thereof for winding turns of reserve yarn, said annular zone (IA; IB) being provided with an edge and yarn holding means associated with said edge for holding the yarn; characterized in that said holding means has a guide notch (3) beginning in said edge of said annular zone (lA; IB) and a diaphragm portion (9) of very little thickness made such that it can be torn by the yam which is inserted and forced into said notch and into said diaphragm portion (9), said diaphragm portion being formed approximately transversely to said guide notch (3). 2. The yam center as claimed in claim 1, wherein the said diaphragm portion (9) of little thickness extends out on either side of said guide notch. 3. The yam center as claimed in claims 1 or 2, wherein the said yarn support body has two lateral annular zones (lA, IB) at both ends thereof each annular zone being provided with holding means so as to hold the tail end and the head end of the yam. 4. The yarn center made from molded thennoplastic resin, substantially as herein above described with reference to the accompanying drawing. |
|---|
758-mas-1996 correspondence others.pdf
758-mas-1996 correspondence po.pdf
758-mas-1996 description (complete).pdf
| Patent Number | 192896 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Indian Patent Application Number | 758/MAS/1996 | ||||||||
| PG Journal Number | 30/2009 | ||||||||
| Publication Date | 24-Jul-2009 | ||||||||
| Grant Date | 11-Mar-2005 | ||||||||
| Date of Filing | 08-May-1996 | ||||||||
| Name of Patentee | M/S. BOTTARIA MARCO | ||||||||
| Applicant Address | VIA MACHIA VELLI NO.40, 50047 PRATO, | ||||||||
Inventors:
|
|||||||||
| PCT International Classification Number | D01H 1/18 | ||||||||
| PCT International Application Number | N/A | ||||||||
| PCT International Filing date | |||||||||
PCT Conventions:
|
|||||||||