Fabric gripper

• US 6,708,367 B2
• Filed: 04/18/2001
• Issued: 03/23/2004
• Est. Priority Date: 04/18/2000
• Status: Expired due to Fees

• Current Assignee: Long Port Investments Limited
• Original Assignee: Long Port Investments Limited
• Inventors: Billson, Charles
• Primary Examiner(s): Will, Thomas B.
• Assistant Examiner(s): Pechhold, Alexandra K.
• Application Number:
  US09/837,880
• Publication Number:
  US 20010045253A1
• Time in Patent Office: 1,070 Days
• Field of Search: 16/4, 16/7, 16/16
• US Class Current: 16/16
• CPC Class Codes: A47G 27/0462 Tack strips for tensioning or seaming
• CPC Class Codes: Y10T 428/249923 Including interlaminar mechanical fastener

Abstract

A fabric gripper for securing a fabric or covering to a surface comprises an elongate body and a plurality of upwardly protruding barbs on the upper surface of the body. The gripper is formed as one piece and can either be manufactured from a single thermoplastic material or else the body and barbs can be manufactured of first and second thermoplastic materials, respectively, where the second material is harder than the first material. Where the gripper is to be made of first and second materials, a method of manufacture is provided where the second material is injection molded into channels in the body to form the barbs.

Claims

1. A fixing device for the fixing of a covering to a surface, said device comprising an elongate body and a plurality of upwardly protruding barbs arranged on an upper surface of said body, wherein said body and barbs are formed as one piece and are manufactured from first and second thermoplastic materials, respectively, said second material being harder than said first material, and wherein said barbs extend at an angle to the upper surface of less than 90°

.

2. The fixing device of claim 1, wherein said first material is polypropylene and said second material is nylon.

3. The fixing device of claim 1, wherein said body is in the form of a parallelepiped.

4. The fixing device of claim 1, wherein one side face of said body is at an angle to the horizontal.

5. The fixing device of claim 4, wherein the side face is at an angle of between 30 and 45 degrees to the horizontal.

6. The fixing device of claim 1, wherein said body further comprises a pair of end faces, wherein an integral wedge portion is provided adjacent one of said end faces and a projecting portion is provided adjacent the opposite end face.

7. The fixing device of claim 6, wherein said wedge portion comprises a plurality of raised rib portions.

8. The fixing device of claim 1, wherein each of said plurality of protruding barbs is a skewed cone.

9. The fixing device of claim 1, wherein the device is recyclable.

10. A method of producing a fabric fixing device manufactured from first and second plastics materials, said method comprising the steps of:

extruding a first material so as to form an elongate body having at least one channel formed in an upper surface thereof;

placing said elongate body into an injection mould such that a plurality of cavities are formed between said channel and said mould;

injecting a second material into said cavities such that a plurality of upwardly protruding barbs are formed on the upper surface of said body,

wherein the second material is harder than the first material.

11. The method of claim 10, wherein said at least one channel is substantially parallel to the longitudinal axis of the body.

12. The method of claim 10, wherein two channels are formed in said extruding step, each being substantially parallel to the longitudinal axis of the body.

13. The method of claim, 10, wherein the step of placing the body in the mould is carried out automatically following the extruding step.

14. The method of claim 10, wherein said second material is injected into said cavities through the base of said body.