Buckles – buttons – clasps – etc. – Readily interlocking – two-part fastener requiring either...
Reexamination Certificate
1999-08-18
2001-06-05
Sakran, Victor N. (Department: 3626)
Buckles, buttons, clasps, etc.
Readily interlocking, two-part fastener requiring either...
C024S0160PB, C024S03050P, C024S003400
Reexamination Certificate
active
06240606
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a fastener integrally made of synthetic resin such as nylon or propylene, for binding a plurality of or a plurality of pairs of products including particularly towels or socks, permitting to remove itself from the product, when releasing this binding, or by simply cutting its head by hand.
For example, fasteners made of synthetic resin is normally used to attach a price tag or a label to the product, or to bind a plurality of or a plurality of pairs of towels or socks.
And, as for a fastener used mainly for attaching a price tag, called “tag pin”, an assembly of fasteners are molded integrally with molecular oriented thermoplastic synthetic resin such as nylon, by forming a bar in T at one extremity of an elongated filament part, by forming the whole in H by providing a flat head at the other extremity, and in a state where 50 to 150 fasteners are planted on a linkage rod (member corresponding to a backbone) by intermediate of a linkage portion disposed at the center of the bar, and moreover, the filament part is made thinner and more tough by extending by a predetermined factor.
Recently, a plurality of towels, socks or other textile products are sold lumped together and, for this effect, a method has became adopted for binding a plurality of or a plurality of pairs of towels or other textile products, by shortening the filament part of fastener for attaching the price tag than the one for attaching the price tag.
For attaching such fastener to a textile product or the like, an assembly of fastener is charged in a pistol type applicator device, a hollow needle fitted to the tip of this applicator device is penetrated into a plurality of or a plurality of pairs of piled up towels, socks or other textile products and, then, the bar of a single fastener is fixed at the back of the textile product by pushing it out of the hollow needle tip by gripping a lever protruding in front of a grip portion, and the bar pushed out from the hollow needle restores its original form by the spring stress of a junction portion with the filament part, namely, so that the bar will be directed forming a T-form in respect of the filament part and fixed to the back side of stocks or towels.
As described above, when textile products are bundled, as the fastener penetrates into compressed textile products, its head and bar will be fixed eating into both faces of such textile products.
The fastener used for attaching the price tag has a relatively long filament part between the product and its head, and the price tag is supported loosely in respect of the filament part, so it is necessary to cut the filament part with scissors or a knife to cut off the price tag from the product for removing the fastener.
On the other hand, as mentioned above, if a plurality of towels or other compressible textile products are bundled in a condition tighten by driving a fastener into them, its head and bar bite into both faces of the textile products leaving no room for operating scissors or a knife if one wants to cut the fastener.
Also, it is difficult to tear off the head by stress, because it leaves little portion to grasp by hand. In other words, as the filament part is made as strong as a silken gut by extension, it can only be broken by a tensile strength of equal or superior to 10 kg, giving damages to the textile product.
Thus, if soft towels, socks or other textile products are bundled using a fastener with a short filament part, its head and bar positioned on the face and back of such bundle will bite into the towel surface and be buried therein. This small bar (0.8 mm in diameter, 9 mm in length) can not possibly be held by finger tips and, moreover, even its head having an area relatively larger than said bar can hardly be pinched with finger tips and, it can not be torn off by hands.
Therefore, the tip of scissors or a knife can not reach at the filament part of a fastener buried in the textile product and, if one try to cut by stress the filament part with scissors penetrated into the textile product, fibers of towels or other the textile products may be cut out.
On the other hand, conventionally, an idea of fastener of attaching the price tag has been proposed to leave a non extended portion on a portion of the head side of the filament part and to dispose a small diameter cutting portion on this non extended portion; however, the non extended portion presents a far less strength in comparison with the filament part made thinner and stronger by the extension, bends easily deteriorating the physical aspect, so it can not really be applied to the price tag attachment.
SUMMARY OF THE INVENTION
The present invention is devised in consideration of shortcomings of said conventional fastener and has an object to provide a fastener presenting a necessary strength for fixing the product so that the filament part will not break even when a tensile stress is applied to this filament part, wherein the junction portion between the head and the filament part or its proximity by twisting or pulling off the head and such broken portion can be pulled off from the product to separate simply this product.
The fastener according to the present invention is composed as follows:
1) The fastener is provided with a bar on one extremity of an elongated filament part and with a head on the other extremity respectively and, at the same time, a “removing portion” is provided at a junction portion between this head and the filament part or in the vicinity thereof, and a “breaking portion” is disposed in this removing portion to form a locally weak portion.
This removing portion means that the junction portion between the head and the filament part can be separated easily and, the head and the filament part can be separated by intermediate of the breaking portion forming this removing portion by pinching the head with finger tips to twist of bend the same.
As this breaking portion, usually the one formed by a thin portion between the filament part and the head portion is adopted, but the one wherein the thin portion if shorten in conformity with this is to be adopted. Besides, the breaking portion can be provided directly in the vicinity of the junction portion between the head and the filament part.
According to the present invention, as the breaking portion is not disposed directly on the filament part, this filament part will not break nor extend, even when a tensile stress within the predetermined range is applied during the elongation of this filament part or the product handling.
However, the head portion and the filament part can easily be separated to remove the fixing piece from the textile product, by folding or twisting the breaking portion disposed at the head, in order to remove the fastener from towels, socks or other the textile products.
2) In the fastener according to the present invention, a removing portion is disposed at the junction portion between the head and the filament part and, a breaking portion is provided on this removing portion.
In the fastener according to the present invention, a removing portion is disposed at the edge portion of the head facing the bar and, a small bar form or a film form piece facing with the edge of the head is to be separated by breaking the head at the removing portion.
This small bar form or a film form piece separated from the edge of the head is narrow (thin) and weak in the limit of not to damage the product, and it deforms into V or Y-form by the resistance of the product when the filament part is pulled out allowing to pull out easily.
3) The fastener according to the present invention is characterized by that the breaking portion formed at the removing portion is made thinner by forming a groove in the transversal direction to the head.
In the fastener according to the present invention, as the breaking portion is formed as a transversal groove, the head can be separated easily from the head by intermediate of this braking portion and pulled out from the filament, by bending or twisting the head.
4) The fasten
Arent Fox Kintner Plotkin & Kahn
Sakran Victor N.
Tosca Co., Ltd.
LandOfFree
Fastener with removable head does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fastener with removable head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fastener with removable head will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2489183