IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0208293
(2002-07-30)
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발명자
/ 주소 |
- Ware, R. Duane
- Lohness, William F.
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출원인 / 주소 |
- Michigan Tube Swagers & Fabricators, Inc.
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대리인 / 주소 |
Gifford, Krass, Groh, Sprinkle, Anderson & Citkowski, PC
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인용정보 |
피인용 횟수 :
4 인용 특허 :
15 |
초록
▼
A chair includes a generally horizontal seating surface with four legs extending downwardly from the seating surface. A first stiffener bar extends between and interconnects the front left leg and the rear left leg. A second stiffener bar extends between and interconnects the front right leg and the
A chair includes a generally horizontal seating surface with four legs extending downwardly from the seating surface. A first stiffener bar extends between and interconnects the front left leg and the rear left leg. A second stiffener bar extends between and interconnects the front right leg and the rear right leg. A ganger feature is provided for interconnecting the chair with a like chair in a side-by-side arrangement. The ganger feature is a ganger bracket interconnected with one of the stiffener bars and extending outwardly to an outward edge. An engagement tab extends upwardly from the outward edge. The other stiffener bar has a lower surface with a slot defined therein. The slot is sized and positioned so as to receive the engagement tab of a like chair so as to interconnect the chairs.
대표청구항
▼
1. A chair comprising: a generally horizontal seating surface; four legs extending downwardly from said generally horizontal seating surface, said legs comprising a front left leg, a front right leg, a rear left leg, and a rear right leg, each of said legs having an upper end adjacent said seat
1. A chair comprising: a generally horizontal seating surface; four legs extending downwardly from said generally horizontal seating surface, said legs comprising a front left leg, a front right leg, a rear left leg, and a rear right leg, each of said legs having an upper end adjacent said seating surface, a lower end configured to contact a support surface, and a midportion therebetween; a first stiffener bar extending between and interconnecting said front left leg and said rear left leg, said first stiffener bar having a first end interconnected with said midportion of said front left leg and a second end interconnected with said midportion of said rear left leg; a second stiffener bar extending between and interconnecting said front right leg and said rear right leg, said second stiffener bar having a first end interconnected with said midportion of said front right leg and a second end interconnected with said midportion of said rear right leg; each of said stiffener bars having an upper surface, an opposed lower surface, and a pair of side surfaces; a ganger feature for interconnecting said chair with a like chair in a side-by-side arrangement, said ganger feature comprising a ganger bracket interconnected with one of said stiffener bars and extending outwardly therefrom to an outward edge, said ganger bracket further having an engagement tab extending upwardly from said outward edge; and the other of said stiffener bars having a slot defined in the lower surface and positioned to be spaced from the side surfaces, said slot being sized and positioned so as to receive the engagement tab of a like chair so as to interconnect said chair with the like chair. 2. The chair according to claim 1, wherein said first and second stiffener bars each have a midsection defined between said first and second ends, each of said stiffener bars being curved such that said midsection extends outwardly with respect to said first and second ends, said ganger bracket being interconnected with said midsection of said one of said stiffener bars and said slot in said other of said stiffener bars being defined in said lower surface of said midsection of said other of said stiffener bars.3. The chair according to claim 1, wherein said stiffener bars each comprise tubular members.4. The chair according to claim 3, wherein said tubular members have rectangular cross sections.5. The chair according to claim 1, wherein said stiffener bars are generally horizontal.6. The chair according to claim 1, wherein said ganger bracket has a forward edge that is spaced from said first end of said one of said stiffener bars by a predetermined distance, said slot in said other of said stiffener bars having a forward edge that is spaced from said first end of said other of said stiffener bars by approximately the same predetermined distance.7. The chair according to claim 1, wherein said one of said stiffener bars has a lower surface, said ganger bracket being interconnected with said lower surface of said one of said stiffener bars.8. The chair according to claim 7, wherein said ganger bracket comprises a metal flange with an inward end connected to said lower surface, said ganger bracket extending generally horizontally outwardly and bending upwardly so as to define said engagement tab.9. The chair according to claim 1, further comprising a seat back extending upwardly from an edge of said seating surface.10. A stackable chair comprising: a base having a pair of generally parallel inverted U-shaped leg members spaced apart so as to define opposite sides of the base, each leg member including a front leg portion, a rear leg portion, and a generally horizontal portion interconnecting the front and rear leg portions, the base further having a generally horizontal seat cushion frame extending between and interconnecting the U-shaped leg members; a first stiffener bar extending between and interconnecting said front leg portion and said rear l eg portion of one of said leg members, said first stiffener bar being spaced below said generally horizontal portion of said one of said leg members; a second stiffener bar extending between and interconnecting said front leg portion and said rear leg portion of the other of said leg members, said second stiffener bar being spaced below said generally horizontal portion of said other of said leg members; each of said stiffener bars comprising a tubular member having an upper surface, an opposed lower surface, and a pair of side surfaces; a ganger feature for interconnecting said chair with a like chair in a side-by-side arrangement, said ganger feature comprising a ganger bracket interconnected with said first stiffener bar and extending outwardly therefrom, said ganger bracket further comprising an upwardly extending engagement tab spaced from said first stiffener bar; and said second stiffener bar having a slot defined in said lower surface of said tubular member, said slot being defined intermediate said side surfaces such that said side surfaces are uninterrupted, said slot being configured to receive the engagement tab of a like chair so as to interconnect said chair with the like chair. 11. The chair according to claim 10, wherein said first and second stiffener bars each have a midsection, each of said stiffener bars being curved such that said midsection extends outwardly with respect to said leg member, said ganger bracket being interconnected with said midsection of said first stiffener bar and said slot in said second stiffener bar being defined in said lower surface of said midsection of said second stiffener bar.12. The chair according to claim 10, wherein said tubular members have rectangular cross sections.13. The chair according to claim 10, wherein said stiffener bars are generally horizontal.14. The chair according to claim 10, wherein said ganger bracket has a forward edge that is spaced from said front leg portion of said one of said leg members by a predetermined distance, said slot in said second stiffener bar having a forward edge that is spaced from said front leg portion of said other of said leg members by approximately the same predetermined distance.15. The chair according to claim 10, wherein said ganger bracket is interconnected with said lower surface of said first stiffener bar.16. The chair according to claim 15, wherein said ganger bracket comprises a metal flange with an inward end connected to said lower surface, said ganger bracket extending generally horizontally outwardly and bending upwardly so as to define said engagement tab.17. The chair according to claim 10, further comprising a seat back interconnected with said base and extending upwardly from an edge of said seating surface.18. A stackable chair comprising: a base having a pair of generally parallel inverted U-shaped leg members spaced apart so as to define opposite sides of the base, each leg member including a front leg portion, a rear leg portion, and a generally horizontal portion interconnecting the front and rear leg portions, the base further having a generally horizontal seat cushion frame extending between and interconnecting the U-shaped leg members; a seat back frame interconnected with said base and extending upwardly therefrom; a first stiffener bar extending between and interconnecting said front leg portion and said rear leg portion of one of said leg members, said first stiffener bar being generally parallel to and spaced below said generally horizontal portion of said one of said leg members, said first stiffener bar comprising an elongated tubular member having a first end interconnected with said front leg portion, a second end interconnected with said rear leg portion, and a midsection therebetween, said tubular member being curved such that said midsection extends outwardly with respect to said first and second ends; a second stiffener bar extending between and interconnecting said fro nt leg portion and said rear leg portion of the other of said leg members, said second stiffener bar being generally parallel to and spaced below said generally horizontal portion of said other of said leg members, said second stiffener bar comprising an elongated tubular member having a first end interconnected with said front leg portion, a second end interconnected with said rear leg portion, and a midsection therebetween, said tubular member being curved such that said midsection extends outwardly with respect to said first and second ends; each of said stiffener bars having a generally horizontal lower surface extending between a pair of side surfaces; a ganger feature for interconnecting said chair with a like chair in a side-by-side arrangement, said ganger feature comprising a ganger bracket interconnected with said lower surface of said midsection of one of said stiffener bars, said ganger bracket extending generally horizontally outwardly from said midsection and bending upwardly so as to define an upwardly extending engagement tab spaced from said one of said stiffener bars, said ganger bracket having a forward edge that is spaced from said first end of said one of said stiffener bars by a predetermined distance; and the other of said stiffener bars having a slot defined in said lower surface of said midsection of said tubular member intermediate the side surfaces, said slot being configured to receive the engagement tab of a like chair so as to interconnect said chair with the like chair, said slot having a forward edge that is spaced from said first end of said other of said stiffener bars by approximately the same predetermined distance. 19. A chair comprising: a generally horizontal seating surface; four legs extending downwardly from the generally horizontal seating surface, the legs comprising a front left leg, a rear left leg, a front right leg, and a rear right leg; a first stack bar extending between and interconnecting the front left leg and the rear left leg; a second stack bar extending between and interconnecting the front right leg and the rear right leg; each of said stack bars having an upper surface, an opposed lower surface, and a pair of side surfaces; and a ganger feature comprising; a ganger tab connected to one of the stack bars and extending outwardly therefrom, the ganger tab having a generally horizontal portion attached to the stack bar and extending outwardly therefrom and a generally vertical portion extending upwardly from the generally horizontal portion, the generally vertical portion comprising a flat member having a front to back length substantially shorter than the front to back length of the stack bars; and a slot defined in the lower surface of the other of the stack bars intermediate the side surfaces, the slot positioned and sized to receive the generally vertical portion of a ganger tab on a substantially identical adjacent chair such that the ganger tab on the adjacent chair and the slot receiving the tab cooperate to retain the chairs in an aligned side-by-side arrangement. 20. The chair according to claim 19, wherein each of the stack bars have a mid portion that extends outwardly.
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