Furniture, load support member for chair, and chair

• US 10,334,953 B2
• Filed: 10/23/2015
• Issued: 07/02/2019
• Est. Priority Date: 10/24/2014
• Status: Active Grant

• Current Assignee: Okamura Corporation
• Original Assignee: Okamura Corporation
• Inventors: Masunaga, Hiroshi, Isogai, Yoshinori, Wakizono, Kouichirou, Okuda, Naoyuki, Izawa, Syouichi
• Primary Examiner(s): Brindley, Timothy J
• Application Number:
  US15/520,678
• Publication Number:
  US 20170311724A1
• Time in Patent Office: 1,348 Days
• CPC Class Codes: A47C 31/023 connecting upholstery to frames, e.g. by hooks, clips, snap fasteners, clamping means or the like
• CPC Class Codes: A47C 7/282 with mesh-like supports, e.g. elastomeric membranes
• CPC Class Codes: A47C 7/40 for the back

Abstract

Furniture and a chair include a shielding piece (7b5) which is provided in an operation plate (7b2) or a flange (7a5) and closes a gap generated by the operation plate (7b2) and the flange (7a5) when the operation plate (7b2) has an operation posture. In addition, a chair includes a load support member for a chair, the load support member for a chair includes a frame member which includes a pair of rod members (19) and an extension material (22) which is formed in a bag shape and covers the frame member, a support portion (26) is provided on each of inner surfaces facing each other in the pair of rod members (19), and an interior material (21) having a repulsive force with respect to a load in a surface perpendicular direction is bridged between the pair of rod members (19) by being supported by the support portion (26).

Claims

1. A load support member for a chair which is included in a chair, comprising:

a frame member which is a strength member which includes a pair of rod members which is separated from each other in a width direction of the chair and is disposed to be approximately parallel to each other; and

an exterior material which includes a front extension material disposed on a load receiving surface side of the chair and a rear extension material disposed on a side opposite to the load receiving surface which are joined to each other on one end edge in a length direction of the rod member and both end edges in the width direction, the exterior material being formed in a bag shape having an opening portion continuous in the width direction on the other end edge side in the length direction and covering the frame member through the opening portion from one end side in the length direction of the frame member,

wherein a support portion is provided on each of inner surfaces facing each other of the pair of rod members, and

wherein an interior material having a repulsive force with respect to a load in a surface perpendicular direction is bridged between the pair of rod members by being supported by the support portion, the interior material being disposed between the front extension material and the rear extension material,

wherein a spacer surface material is disposed between the front extension material and the interior material, and

wherein a repulsive force of the spacer surface material with respect to the load in the surface perpendicular direction is relatively smaller than the repulsive force of the interior material with respect to the load in the surface perpendicular direction.

2. The load support member of a chair according to claim 1,

wherein the support portion includes a fitting recessed portion which is opened to the load receiving surface side.

3. The load support member of a chair according to claim 2,

wherein the support portion is configured of a support material which is disposed with a gap with respect to the rod member on the inner surface side of the rod member, and the gap between the rod member and the support material becomes the fitting recessed portion, and

wherein the support material has a first end portion disposed on the load receiving surface side, a portion of the rod member, which forms the fitting recessed portion, has a second end portion disposed on the load receiving surface side, and the first end portion is positioned to be further from the load receiving surface side than the second end portion.

4. The load support member of a chair according to claim 1,

wherein a repulsive force of the exterior material with respect to the load in the surface perpendicular direction is relatively smaller than the repulsive force of the interior material with respect to the load in the surface perpendicular direction.

5. The load support member of a chair according to claim 1,

wherein covering of the spacer surface material is continuously applied from a front surface side of the interior material to a front surface side of the rod member.

6. The load support member of a chair according to claim 1,

wherein the spacer surface material is integrally attached to a rear surface of the front extension material.

7. A chair comprising the load support member for a chair according to claim 1 as a backrest in which the rod member is disposed in an up-down direction and the opening portion is disposed on a lower end portion.

8. The load support member of a chair according to claim 3,

wherein a repulsive force of the exterior material with respect to the load in the surface perpendicular direction is relatively smaller than the repulsive force of the interior material with respect to the load in the surface perpendicular direction.

9. The load support member of a chair according to claim 5,

wherein the spacer surface material is integrally attached to a rear surface of the front extension material.

10. A chair comprising the load support member for a chair according to 6 as a backrest in which the rod member is disposed in an up-down direction and the opening portion is disposed on a lower end portion.