SEAT

• US 20110169317A1
• Filed: 05/28/2009
• Published: 07/14/2011
• Est. Priority Date: 05/28/2008
• Status: Active Grant

• Current Assignee: Delta Tooling Co., Ltd.
• Original Assignee: Delta Tooling Co., Ltd.
• Inventors: Sugimoto, Eiji, Maeda, Shigeru, Yamane, Hideyuki, Yoshida, Seiya, Matsukawa, Ryoji, Takata, Yasuhide, Ogura, Yumi, Fujita, Etsunori, Kawasaki, Seiji, Makita, Soichi
• Granted Patent: US 8,528,982 B2
• Time in Patent Office: Days
• US Class Current: 297/452.2
• CPC Class Codes: A47C 31/006 Use of three-dimensional fabrics
• CPC Class Codes: A47C 7/02 Seat parts adaptation of seats to mounting in tubular chairs A47C5/06; such parts not restricted to chairs A47C23/00; removable upholstered units or cushions A47C27/00
• CPC Class Codes: A47C 7/282 with mesh-like supports, e.g. elastomeric membranes
• CPC Class Codes: A47C 7/40 for the back
• CPC Class Codes: B60N 2/68 Seat frames
• CPC Class Codes: B60N 2/682 Joining means
• CPC Class Codes: B60N 2/686 Panel like structures

Abstract

A seat has a configuration in which, in each side frame of a cushion frame, an inner frame and an outer frame which have flanges extending along peripheral edges thereof are faced to each other with a space therebetween at least partially, and the flanges are fixed by hemming process along the entire peripheral edges thereof. Since the entire peripheral edges are hemmed, the inner frame and the outer frame are securely fixed. Additionally, since the inner frame and the outer frame which are thin-plate-shaped are used, reduction in weight of each side frame can be achieved. Further, since the inner frame and the outer frame are faced to each other with a space therebetween at least partially, a compressive/tensile strength required as a side frame can be secured by inserting an expanded bead body into the space.

Claims

1. A seat provided with a seat cushion section and a seat back section, wherein

in each side frame of a cushion frame disposed in the seat cushion section, an inner frame and an outer frame which are thin-plate-shaped and have flanges extending along peripheral edges thereof are faced to each other with a space therebetween at least partially, and the flanges are fixed to each other along the entire peripheral edges by hemming process.

2. The seat according to claim 1, wherein an expanded bead body is inserted in the space between the inner frame and the outer frame that configures each side frame of the cushion frame, and the expanded bead body and the inner frame or the outer frame are at least partially stuck to each other on faces thereof opposite to each other.

3. The seat according to claim 1, wherein the inner frame and the outer frame configuring each side frame of the cushion frame are fixed at at least one point by a fastening member.

4. The seat according to claim 1, wherein the flanges hemmed of the inner frame and the outer frame configuring each side frame of the cushion frame are at least partially fixed to each other by adhesive, filler, or caulking.

5. The seat according to claim 1, wherein at least one of the inner frame and the outer frame configuring each side frame of the cushion frame is thermally treated.

6. A seat provided with a seat cushion section and a seat back section, wherein

in each side frame of a back frame disposed in the seat back section, an inner frame and an outer frame which are thin-plate-shaped and have flanges extending along peripheral edges thereof except upper end edges thereof are faced to each other with a space therebetween at least partially, and the flanges are fixed to each other along the entire peripheral edges except the upper end edges by hemming process.

7. The seat according to claim 6, wherein a pipe frame is disposed in the space of each side frame of the back frame.

8. The seat according to claim 7, wherein the pipe frame is disposed so as to be positioned in the space of each side frame of the back frame on near and far sides of each side frame through an upper end opening portion.

9. The seat according to claim 7, wherein the pipe frame is partially fixed on an inner face of the side frame.

10. The seat according to claim 6, wherein an expanded bead body is inserted in the space between the inner frame and the outer frame that configures each side frame of the back frame, and the expanded bead body and the inner frame or the outer frame are at least partially stuck to each other on faces thereof opposite to each other.

11. The seat according to claim 6, wherein the inner frame and the outer frame configuring each side frame of the back frame are fixed at at least one point by a fastening member.

12. The seat according to claim 6, wherein the flanges hemmed of the inner frame and the outer frame configuring each side frame of the back frame are at least partially fixed to each other by adhesive agent, filler, or caulking.

13. The seat according to claim 6, wherein at least one of the inner frame and the outer frame configuring each side frame of the back frame is thermally treated.