Segmented separable fastener
A fastener and segmented technology, applied in fasteners, household components, other seating furniture, etc., can solve problems such as wasting time
Inactive Publication Date: 2006-08-02
维尔克罗工业有限公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0019] Thus, the object of the present invention is to propose a press fastener which can be fixed to the surface of a molded article of any profile shape, without the need for special shape cutting, or for placing the press fastener separately, and without a large amount of waste and wasting a lot of time
Method used
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Embodiment Construction
[0061] A schematic diagram of a preferred embodiment of the present invention is shown in Figures 1, 2 and 3A. Figure 1 is a perspective view of a part of the product, figure 2 with Figure 3A is a plan view and a side view of the product. The elongated buckle piece 10 is formed by connecting a series of adjacent buckle sections 12 and hinged parts 14 . Each buckle section 12 includes a base 16 having a buckle face 18 and a non-snap face 19 (such as Figure 3A shown). A plurality of hook-and-loop type press fastener elements 20 are disposed on the press fastener face of the base. The press fastener 20 may be a hook or a clasp. The press fastener shown in Figure 1 is a double hook palm tree hook, but any other shape of hook or clasp could be used. A sealing ring 22 surrounds each segment. Seal retaining ring 22 protrudes from base 16 slightly higher than the tip of press fastener 20, such as Figure 12 shown.
[0062] Such as figure 2 As shown, the fastener element 10...
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A segmented hook and loop type fastener accommodates molding contours. Each segment (12) may be surrounded by a gasket barrier (22), or covered by another sort of cover, or left unprotected. The fastener component is a plurality of fastening segments (12). Carrier on the fastening face of a base member (16) are a plurality of fastening elements (20), either hook-type or loop-type. Located between and joining each adjacent pair of fastening segments is a flexible neck (14) that is narrower than the fastening segment. The flexible neck region is typically flexible around two or three orthogonal axes. Each segment may have a barrier (22) for use during an operation to incorporate the fastener into a molded body. The barrier would prevent any liquid foaming material from contacting the fastening elements if the fastener is placed in the mold with the fastening elements pressed against the wall of the mold. The cover may be enveloping or space filling. Several different types of apparatus and methods for fabricating such a fastener are also disclosed. A plurality of mold plates include a fastener forming zone (112), having similar arcuate edges. The fastener forming zone further comprises fastening element mold cavities intersecting these edges and one face of the mold plate, the mold cavities being arranged into a plurality of segment forming regions. Circumscribing each of the segment forming regions, is a gasket mold cavity; and between each adjacent pair of segment forming regions, is a hinge forming region (114). The mold plates are arranged to form a cylindrical mold wheel having a circular surface formed by the arcuate edges of the mold plates such that the segment forming regions are spaced apart circumferentially around the cylindrical surface. The apparatus further comprises an extruder (646) having a die (635) whose surface is disposed close to the cylindrical surface.
Description
technical field [0001] The present invention relates generally to detachable press fasteners and, in particular, to detachable press fasteners attached to molded objects, such as seat cushions. Background of the invention [0002] Typically, a portion of the detachable press fastener is placed into a molded object, such as polyurethane seating foam, during the molding process for subsequent engagement with another article having an interengaging portion with the detachable press fastener. The snap fastener of the present invention greatly simplifies the molding process of the objects to which the snap fastener is attached. Although, the present invention is particularly suitable for elastic polyurethane foam or hard plastic parts, it will be appreciated that the press fastener product according to the present invention can be made of a wide variety of materials, such as thermoplastic materials, thermoset materials, elastic materials or any other Molding material components....
Claims
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Patent Timeline
Login to View More IPC IPC(8): A44B21/00A47C31/11A44B18/00A44B99/00B29C43/22B29C45/37B29C45/46B29C48/08B29C48/12B29C48/35B29L31/00
CPCB29C2043/465B29C43/222B29C47/32B29L2031/729A44B18/0076B29C47/0021A44B18/0049B29C48/08B29C48/35Y10T24/2717Y10T24/2792Y10T428/24017Y10T428/24182Y10T24/27Y10T24/2775Y10T24/275B29C48/12A44B99/00
Inventor 彼得E·利奇C·M·加兰特
Owner 维尔克罗工业有限公司