Hanging structure for seat foam
AssigneeYanfeng International Automotive Technology Co., Ltd.
InventorsYanfei LIU, Wei XU, Ren TANG, Wenhui MA
Life of this patent
Estimating the term…
Abstract
Disclosed is a fastening structure for a seating foam, comprising a foam and a reinforcement fabric, and characterized in that the fastening structure is directly provided at a reinforcement fabric at a location corresponding to a fastening position, and is connected to the reinforcement fabric. The fastening structure of the present invention simultaneously meets two functional requirements of a foam, namely reinforcement of a side B of the foam and fastening of an exterior side A of the foam. The novel fastening structure of the present invention saves space, is thin and light, enhances the strength of the foam against a pull-out force, and optimizes a foam production process.
Claims17
-19. (canceled)
A seat comprising:
- a foam having an A side and a B side opposite to the A side,
- a trim cover at the A side of the foam,
- a first reinforcement fabric at the B side of the foam,
- a hanging structure, and
- a trim cover tensioning structure,
- wherein the hanging structure tensions the trim cover at a fixing point of the trim cover through the trim cover tensioning structure,
- wherein the hanging structure is directly provided on the first reinforcement fabric at a hanging position, protrudes from a side of the first reinforcement fabric facing the B side of the foam, and extends towards the A side of the foam.
The seat as recited in claim 21, wherein the hanging structure comprises a second reinforcement fabric embedded with a steel wire, wherein the second reinforcement fabric is directly formed by the first reinforcement fabric per se at the side of the first reinforcement fabric facing the B side of the foam, or wherein the second reinforcement fabric is formed and then is joined with the formed first reinforcement fabric.
The seat as recited in claim 22, wherein the steel wire is embedded in the second reinforcement fabric by gluing with an adhesive;
- or by stitching;
- or by soldering;
- or by heat seal.
The seat as recited in claim 22, wherein the trim cover tensioning structure comprises a trim cover profile connected with the trim cover, and a “C”-shaped ring or a “J”-shaped hook or a catch held on the steel wire.
The seat as recited in claim 22, wherein the hanging structure has a longitudinal section and a cross section, in a trapezoidal shape, or in a stepped trapezoidal shape in which each of the two lateral sides of the stepped trapezoidal shape has a step.
The seat as recited in claim 22, wherein the steel wire with a length L1 of 20 mm≤L1≤100 mm extends outside two sides of the second reinforcement fabric with a protrusion amount L3 of 5 mm≤L3≤15 mm.
A method for producing a structural unit of the seat as recited in claim 1, comprising steps of:
- placing the first reinforcement fabric with the hanging structure to an upper tool part of a foaming tool having the upper tool part and a lower tool part, wherein the lower tool part isn't placed with an insert,
- closing the foaming tool and then casting and foaming in the foaming tool to form the foam of the seat, wherein the foam has an A side and a B side opposite to the A side, wherein the first reinforcement fabric with the hanging structure is joined with the foam, wherein the hanging structure is directly provided on the first reinforcement fabric at a hanging position, protrudes from a side of the first reinforcement fabric facing the B side of the foam, and extends towards the A side of the foam.
Dependencies are inferred from the claim text.