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 Title: |
US5123702:
Interaction-high density stacking chair
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Caruso, Jerome C.; Lake Forest, IL
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| Assignee: |
Shelby Williams Industries, Inc., Chicago, IL
other patents from SHELBY WILLIAMS INDUSTRIES, INC. (508675) (approx. 47)
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| Published / Filed: |
1992-06-23
/ 1990-10-24
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| Application Number: |
US1990000602508
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| IPC Code: |
Advanced:
A47C 3/04;
A47C 3/12;
A47C 5/06;
Core:
A47C 3/00;
A47C 5/00;
IPC-7:
A47C 1/02;
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| U.S. Class: |
Current:
297/440.21;
297/239;
297/440.22;
297/440.23;
297/448.2;
297/DIG.002;
403/188;
Original:
297/342;
297/457;
297/459;
297/460;
297/416;
297/446;
297/DIG.2;
297/239;
403/188;
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| Field of Search: |
297/457,459,460,DIG. 2,342,411,416,239,444,446-448,420,421
403/188,245,407.1
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| Priority Number: |
| 1990-10-24 |
US1990000602508 |
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| Abstract: |
A high density stacking chair having a unique construction permits interaction between a frame member and a chair shell. The frame member is formed of a unitary construction, and the chair shell is formed of a singled piece of molded plastic material. The chair shell includes a seat portion and a back portion joined integrally to the seat portion and extends upwardly therefrom. Fastening members are provided for securing the support straps joined to the frame member to the seat portion of the chair shell. Locking devices are provided for securing the support straps to the back portion of the chair shell. The locking devices define pivot points about which the back portion rotate outwardly when the seat portion of the chair shell is deflected forwardly and the back portion of the chair shell is deflected rearwardly so as to force outwardly under stress the frame member. The frame member including front and rear leg portions resiliently urge the chair shell back to its original position when the outward force is removed.
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| Attorney, Agent or Firm: |
Silverman, Cass & Singer, Ltd. ;
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| Primary / Asst. Examiners: |
Falk, Joseph; Nelson, Jr., Milton
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| Maintenance Status: |
CC Certificate of Correction issued
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 15 claims |
What is claimed is:
1. An interaction-high density stacking chair comprising:
- a frame member being formed of a unitary construction, said frame member consisting of a pair of front leg portions having upper ends and opposite lower ends, a pair of parallel spaced-apart base members, and a pair of rear leg portions having upper free ends and opposite lower ends, said lower ends of said rear leg portions being joined integrally to said lower ends of said front leg portions by said pair of base members, said front leg portions having their upper ends joined together by a horizontal cross-member, said rear leg portions having their upper free ends terminating in connecting members;
- a pair of L-shaped support straps having opposing ends, each strap having one end joined to said cross-member of said frame member and an opposite end joined to said connecting members of said frame member;
- a chair shell formed of a single piece of molded plastic material and including a seat portion and a back portion joined integrally to said seat portion and extending upwardly therefrom.
- fastening means for securing said support straps to said seat portion of the chair shell;
- locking means for securing said support straps to said back portion of the chair shell;
- said locking means defining pivot points about which said back portion rotates outwardly when the seat portion of the chair shell is deflected forwardly and the back portion of the chair shell is deflected rearwardly so as to force outwardly under stress said upper ends of each of said front and rear leg portions of said frame member; and
- said front and rear leg portions of said frame member resiliently urging said chair shell back to its original position when the outward force is removed.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 60 U.S. patent(s) that reference this one
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