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`US006554353B1
`
`(12) United Stateg Patent
`Yu
`
`(10) Patent No;
`(45) Date of Patent:
`
`US 6,554,353 B1
`Apr. 293 2003
`
`DUAL-PURPOSE CHAIR
`
`Inventor: Cheng—Yi Yu, PO. Box’ 453, Taichung
`(']’\,V‘)
`
`Noticc.
`
`Subject to am‘ disc1aiu1<':r,the tern: of this
`’
`patent is extended or adjustcd under 35
`U.S.C. 154(1)‘) by 0 days.
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`cited by examiner
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`Uaurilton
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`T01'fi1iHS0fl
`Mendelovich
`Hsiao
`Rivera at at.
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`Isat
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`10/006,153
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`D99 low 2001
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`U.S. Cl.
`Field of gearch ‘
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`...... 04 297/130; 297,58
`39755’ 53, 130,
`+13) 453,33‘ 440_1_
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`References Cited
`U.S. PATENT DOCUMENIS
`
`Prz'nmr'_v 1’fxm7zinei‘—Z\/Iilton NeLs0n, Jr.
`(74) A/rarnejv, Agent. or Firm—IIarrisou 8/; Egbert
`
`(57)
`
`ABSTRACT
`
`A du:11—purp0ss chair comprises a seat structure and :1 base
`structure fastened detachably with the seat structure When
`the seat structure and the base structure are
`fastened
`together, the chair serves as an 0 ICE chair. The seat structure
`can bc scparatéd from the base structure for use as a duck
`chair.
`
`2,2"/0,562 A '
`
`1 1942 Schermerhom
`
`3 Claims, 6 Drawing Slices
`
`J Squared, Inct -== Ex. 1002
`
`J Squared Exhibit 1023, pg. 1
`J Squared vs. Sauder
`IPR2015-00958
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`

`
`U5§g Patent
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`3002anAA.RPA
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`Sheet 1 of 6
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`US 6,554,353 B1
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`J Squared Exhibit 1023, pg. 2
`J Squared vs. Sauder
`IPR2015-00958
`
`

`
`U080 Patent
`
`Am-V 29, 2003
`
`Sheet 2 of 6
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`Us 6,554,353 B1
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`J Squared Exhibit 1023, pg. 3
`J Squared vs. Sauder
`IPR2015-00958
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`

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`UDSQ Patent
`
`Apra 29, 2003
`
`Sheet 3 0f6
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`Us 69554553 B1
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`/Q/”
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`</
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`V ,
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`J Squared Exhibit 1023, pg. 4
`J Squared vs. Sauder
`IPR2015-00958
`
`

`
`US; Patent
`
`Apr. 29, 2003
`
`Sheei 4 of 6
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`Us 6,554,355 B1
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`J Squared Exhibit 1023, pg. 5
`J Squared vs. Sauder
`IPR2015-00958
`
`

`
`-U680 Patent
`
`Apr. 29, 2003
`
`Sheet 5 of 6
`
`US 6,554,353 B1
`
`J Squared Exhibit 1023, pg. 6
`J Squared vs. Sauder
`IPR2015-00958
`
`

`
`US. Patent
`
`Ap1‘qZ‘9,20{B3
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`Sheet 6 of 5
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`Us 65549353 B1
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`J Squared Exhibit 1023, pg. 7
`J Squared vs. Sauder
`IPR2015-00958
`
`

`
`1A
`DUAL-PURPOSE CHAIR
`
`US 6,554,353 B1
`
`‘)..r
`
`“
`
`-5
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`construction and is provided with two arms 132, which are
`respectively pivoted at the free end with the two side rods
`123 of the backrest 12, and at
`the midsegment with two
`longitudinal side rods 114 of the seat 11. The backrest
`support frame 13 has a crown portion 134. which is located
`under one longitudinal end of the seat 11.
`The base structure 20 is formed of an upright rod 21, a
`plurality of caster seat arms 22 extending radially from the
`bottom end of the upright rod 21, a support plate 23 mounted
`V on the top end of the upright rod 21 and provided with a
`plurality of fastening holes 24, and a cover plate 40 corre-
`sponding in shape and size to the support plate 23. the cover
`plate -10 is provided with a plurality of fastening holes and
`is fastened to the support plate 23 by a plurality of fastening
`bolLs 25 which are received in the fastening holes of the
`support plate 23 and the cover plate 40. The cover plate 40
`is intended to conceal the support plate 23 and to fasten the
`base structure 20 to the seat structure 10 in conjunction with
`the support plate 23. In other words, tie base structure 20 is
`fastened with the two support rods 112 of the seat 11 of the
`seat structure 10 by the fastening bo ts 25.
`As shown in FIGS. 1-4, the dua -purpose chair of the
`present invention serves as an ofiice ciair. The seat structure
`10 and the base structure 20 of the chair of the present
`invention can be separated from each other by unfastening
`the fastening bolts 25 of the support structure 20. The seat
`structure 10 is then used as a deck ciair such that the two
`support portions 125 ofthe two side rods 123 ofthe backrest
`12 are rested on a floor surface, and hat the crown portion
`‘ii 134 of the backrest support frame 13 is also rested on the
`floor surface, as illustrated in FIG. 5.
`The two side rods I23 of the backrest 12 of the seat
`structure 10 are pivotally fastened wi h the two longitudinal
`side rods 114 of the seat 11 by a pivoting block 30 which is
`provided at one end with a first pivoting hole 31, at other end
`with a second pivoting hole 34, and a receiving slot 33. The
`side rods 123 of the backrest 12 are pivoted with the side
`rods 114 of the seat 11 by the pivoting block 30 such that the
`side rod 11-1 of the seat 11 is received in the receiving slot
`33 of the pivotiug block 30, and that a first pivot 32 is
`fastened with the side rod 114 of the seat 11 via the first
`pivoting hole 31, and that the other end of the pivoting block
`30 is fastened with the side rod 123 of the backrest 12 by a
`,_ second pivot 35 via the second pivoting hole 34. As a result,
`the backrest 12 can be swiveled in relation to the seat 11 such
`that the backrest 12 can be turned on a pivoting point 136 of
`the backrest support frame 13 toward the front end of the
`seat 11, as indicated by an arrow in FIG. 4.
`In Light of the pivoting blocks 30, the seat structure 10 of
`the present invention can be folded such that the backrest 12
`and the seat 11 are joined together, as shown in FIG. 6.
`The embodiment of the present invention described above
`is to be regarded in all respects as being illustrative and
`nonrestrictive. Accordingly,
`the present invention may be
`embodied in other specific forms without deviating from the
`spirit thereof. The present invention is therefore to be limited
`only by the scopes of the following claims.
`I claim:
`1. A dual-purpose chair comprising:
`a seat structure formed of a seat and a backrest and a
`backrest support frame, said seat having a pair of side
`rods affixed on opposite sides of said seat, said seat
`having a pair of support rods on an underside thereof,
`said backrest having a pair of side rods affixed on
`opposite sides thereof, each of said pair of side rods of
`said backrest having a support portion at a bottom end
`
`BACKGROUND OF THE INVI:NTION
`1. Field of the Invention
`
`invention relates generally to a chair, and
`The present
`more particularly to a dual-purpose chair which can be
`interchangeably used as an o ice chair and a deck chair.
`2. Description of Related Art
`The conventional chairs, such as office chair, leisure chair,
`deck chair, massage Chair, etc., are designed for one purpose.
`As a result.
`the convention chairs can not he used inter-
`changeably for purposes other then the one for which they
`are intended. In order to enhance the marketability of a chair,
`it is necessary to broaden the versatility of the chair.
`BRIEF SUMMARY OF THE INVENTION
`
`to
`invention is
`The primary objective of the present
`provide a dual-purpose chair which can be used as an office
`chair or deck chair.
`
`In keeping with the principle of the present invention, the
`foregoing objective of the present invention is attained by a
`dual«purpo.se chair comprising a seat structure and a base
`structure. The seat structure can be independently used as a
`decl’ chair. In the meantime. The seat structure can be used
`an ofiice chair in conjunction with the base structure.
`The features and the advantages of the present invention
`will be more readily understood upon a thoughtful delibera-
`tion of the following detailed description of a preferred
`embodiment of the present invention with reference to the
`accompanying drawings.
`BRIEF DESC‘RIPTION OF THE SEVERAL
`VIEWS OI" THE DRAWINGS
`
`FIG. I shows a perspective view of the preferred embodi-
`ment of the present invention being used as an office cliair.
`FIG. 2 shows an exploded view of the preferred embodi-
`ment of the present invention as shown in FIG. 1.
`FIG. 3 shows a side schematic view of the preferred
`embodiment of the present invention as shown in FIG. 1.
`FIG. 4 shows a side schematic view of the folding of the
`preferred ernbodirnerit of the present invention as shown in
`FIG. 1.
`FIG. 5 shows a side schematic view of the preferred
`embodiment of the present invention in use as a deck chair.
`FIG. 6 shows a side sectional view of the folding of the
`preferred embodiment of the present invention as shown in
`FIG. 5.
`
`DETAILED DESCRIPTION OF THE
`INVENTION
`
`As shown in FIGS. 1-4, a dual-purpose chair embodied in I
`the present invention comprises a seat structure 10, and a
`base structure 20
`The seat structure 10 is formed of a seat 11, a backrest 12,
`and a backrest support frame 13. The seat 11 is provided in
`the underside with two inverted U—shaped support rods 112
`by which the seat structure 10 is detachably fastened with
`the base structure 20. The backrest 12 has two long side rods
`123 opposite to each other. The two loug side rods 123 are
`connected with each other at the top end thereof and are
`provided at the bottom end thereof with a support portion
`125. The backrest support
`frame 13 is of
`a U—shaped
`
`J Squared Exhibit 1023, pg. 8
`J Squared vs. Sauder
`IPR2015-00958
`
`

`
`US 6,554,353 B1
`
`3
`thereof, said backrest support frame having a pair 0‘
`arms at opposite sides thereof, said pair of arms of saic
`backrest support frame being connected together by a
`crown portion, said pair of arms of said backrest
`support frame being respectively pivotallv connected at
`a free end thereof to said pair of side rods of salt
`backrest, said pair of arms of said backrest suppor
`frame being respectively pivotally connected at a mid-
`segrnent thereof with said pair ofside rods of said seat,
`said crown portion being positioned under one end 0
`said seat; and
`a base structure having an upright rod and a plurality o ’
`caster seat arn:is extending radially outwardly from a
`bottom end of said upright rod, said base structure
`having a support plate mounted on a top end of saic
`upright rod, said support plate having a plurality o"
`fastening holes formed therein. said base structure
`being detachably fastened to said seat structure by a
`plurality of fastening bolts, said pair of support rods 0 ‘
`said seat being fastened to said support plate of saic
`
`4
`base structure by said plurality of fastening bolts, said
`plurality of fastening bolts being respectively received
`in said plurality of fastening holes.
`2. The du al—purpose chair of claim 1 wherein each of said
`pair of side rods of said backrest
`is pivotally fastened
`respectively through a pivoting block to each of said pair of
`side rods of said seat, said pivoting block having a plurality
`of pivot holes.
`3. The dual—purpose chat of claim 2, said pivoting block
`having one of said plurality ofpivot holes at one end thereof,
`said p'voting block having another of said plurality of pivot
`holes at an opposite end thereof, said pivoting block having
`a receiving slot formed therein, one of said pair of side rods
`of said seat being affixed by a pivot pin to said pivot block
`through the hole at said one end thereof, one of said pair of
`side rods of said backrest affixed by another pivot pin to said
`pivot block through the hole at said opposite end thereof.
`
`13
`
`J Squared Exhibit 1023, pg. 9
`J Squared vs. Sauder
`IPR2015-00958