Back, Arm, Bottom, And Front Leg Form Collapsible Parallelogram Patents (Class 297/39)
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Patent number: 11787546Abstract: A floor mounted aircraft seat seal frame includes a frame, displacing elements connecting the frame to the posterior of the seat, and fabric tensioning elements that keep a gap covering fabric connected to the posterior surface of the seat in tension around the frame. The frame displacing elements, which may be leaf springs, coil springs, or manually adjustable element, allow the frame to conform to a wall behind the seat, regardless of the tapering of the wall.Type: GrantFiled: June 11, 2021Date of Patent: October 17, 2023Assignee: AMI Industries, Inc.Inventors: Apoorva Jayaramu, Nikhil Anthony Saldanha
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Patent number: 11419422Abstract: A support device configured to overlay a seating assembly and configured to support the torso, neck, and head of a user is provided.Type: GrantFiled: May 27, 2020Date of Patent: August 23, 2022Inventor: Sako Hamparsomian
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Patent number: 11284722Abstract: Various embodiments provide a folding chair. The folding chair includes a frame body having a back, an arm, a front leg and a rear leg frame members. The front and rear leg frame members are configured to support the frame body in an upright position on a ground surface in an unfolded state. Each frame member includes an intermediate section, and a pair of extended sections extending from the intermediate section forming a U-shaped frame member. The frame member also includes a plurality of connecting members moveably coupling the plurality of frame members for allowing the frame body to attain the unfolded state or a folded state. The folding chair also includes a cover member configured to cover the frame body to form at least a seat portion and a backrest portion. The seat portion is supported by the arm frame member and the backrest portion is supported by the back frame member.Type: GrantFiled: May 24, 2021Date of Patent: March 29, 2022Inventor: Alexander Chan
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Patent number: 11129477Abstract: The present invention relates to an elevated portable chair that includes: a seat and a pair of collapsible legs, wherein the pair includes a front leg and a rear leg, wherein rear leg extends, and pivots open from a mid-point on the front leg. A rear bracket extends from a rear edge of the seat to a distal end of the rear leg to provide stabilizing support, where a horizontal brace is placed at a midpoint of the rear bracket. Other features of the chair include a back support; a first arm rest; a second arm rest and a solar panel on a top edge of the back support. The solar panel provides a power source for the at least one power outlet provided on the chair.Type: GrantFiled: December 21, 2018Date of Patent: September 28, 2021Inventor: William Xiques
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Patent number: 10314403Abstract: The invention provides a combination chair and bean bag game comprising a horizontally disposed frame having a first end, second end, and medially facing surface; a vertically disposed frame having a first end, second end, and medially facing surface, wherein the first end of the vertically disposed frame extends from the first end of the horizontally disposed frame; a webbing, or webbings overlaying the medially facing surfaces of the horizontally and vertically disposed frames; legs to keep the frame above the ground and support the weight of a person seated on the fabric cover overlaying the frame; an aperture extending through a portion of the webbing overlaying the horizontally disposed frame and positioned between the first and second ends of the horizontally disposed frame.Type: GrantFiled: March 28, 2018Date of Patent: June 11, 2019Inventor: Karen S. Schmidt
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Patent number: 10194749Abstract: A portable chair may include a first front leg and a second front leg connected by a front sled and a first back leg and a second back leg connected by a back sled. The front sled may include a first front foot and a second front foot and the back sled may include a first back foot and a second back foot. Each of the feet attached to the front and back sleds may include retention feature holes configured to allow water to drain from the sled/foot interface. The portable chair may further include a seat including a seat frame border including a plurality of protrusions. The seat frame border may be rigidly attached to the seat via an injection molding process. The portable chair may also include a seat frame to which the plurality of protrusions of the seat frame border is configured to be removably attached.Type: GrantFiled: May 23, 2017Date of Patent: February 5, 2019Assignee: YETI Coolers, LLCInventors: William S. Doolan, Steve Charles Nichols, Roy Joseph Seiders
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Patent number: 9867466Abstract: According to some embodiments, a folding chair comprises a first frame element, a second frame element, wherein the first frame element moves from a first position remote from the second frame element to a second position toward, adjacent to or against the second frame element, and a cradle comprising a guide member that guides the first frame element into the cradle.Type: GrantFiled: December 15, 2015Date of Patent: January 16, 2018Assignee: ShelterLogic Corp.Inventor: Jack B. Lovley, II
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Patent number: 8864220Abstract: A chair according to an embodiment of the present invention includes a seat frame, a plurality of legs, a backrest and an armrest. The plurality of legs are rotatably coupled to the seat frame at front and rear portions of the seat frame. The backrest is rotatably coupled to the seat frame at the rear portion of the seat frame. The armrest is rotatably coupled to upper ends of the legs. The armrest includes a movable member and a first elastic member. The movable member is retained inside the armrest and is movable along the armrest. The movable member is rotatably coupled to the backrest. The first elastic member is located inside the armrest and applies an elastic restoration force against the movement of the movable member.Type: GrantFiled: November 4, 2011Date of Patent: October 21, 2014Inventor: Han Joo Kim
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Patent number: 8814261Abstract: Collapsible chairs and related chair systems. An exemplary chair includes a base member comprising a seat surface configured to support a user sitting thereon, a back supporting member behind the seat surface configured to support a user's back when a user is seated, and parallel first and second side members each including first and second fulcrums. The first fulcrums connect the side members to the base member disposed therebetween. The second fulcrums connect the side members to the back supporting member disposed therebetween. The side members define a frame within which the back supporting member and the base member may be rotated about their respective fulcrums. The fulcrums allow the chair to be collapsed to a more compact configuration (e.g., for storage).Type: GrantFiled: April 8, 2011Date of Patent: August 26, 2014Inventors: Stephen L. Chamberlain, Amber D. Chamberlain
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Publication number: 20110043004Abstract: A chair that is reconfigurable between a folded and an unfolded configuration includes a first leg having a first end and an opposite second end. An intermediate portion is located between the first and second ends. A second leg has a first end and an opposite second end. An intermediate portion is located between the first and second ends of the second leg. The intermediate portion of the second leg is pivotally connected to the intermediate portion of the first leg. A support member has a first end pivotally connected to the first leg and an opposite second end. A seat frame has a first part pivotally connected to the second end of the support member and a second part pivotally connected to the second end of the second leg. The second end of the support member is adjacent the first end of both the first and second legs in the folded configuration.Type: ApplicationFiled: August 20, 2009Publication date: February 24, 2011Applicant: IDEA NUOVA, INC.Inventor: BENJAMIN S. AKKAD
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Publication number: 20100283296Abstract: A foldable chair has an armrest retracting structure that includes two plate elements placed below each armrest, each plate element having a guide slot with a linear section and a reverse turn section. A first pivotal axle passes through the plate elements and connects with the front leg frame. A support beam has an end through which a second pivotal axle is mounted, the second pivotal axle being connected with the front leg frame. An opposite end of the support beam is secured in the slots through a bolt. By moving the support beam, the armrest can be deployed or retracted. When the bolt is lodged in the reverse turn section, the armrest can be locked in the deployed position.Type: ApplicationFiled: May 8, 2009Publication date: November 11, 2010Inventors: Mei Chuen Lin, Tzu Mei Wang
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Patent number: 7784861Abstract: A spring locking knob and a fixed stop at the upper ends of the front legs of a chair frame cooperate to restrict movement of a slideset joining the front legs, rear legs and seat support struts of a chair in making the chair with its cover seat more stable and resistant to an inadvertent folding closure.Type: GrantFiled: March 29, 2010Date of Patent: August 31, 2010Inventor: Jianrong Deng
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Patent number: 7717502Abstract: A spring locking knob and a fixed stop at the upper ends of the front legs of a chair frame cooperate to restrict movement of a slideset joining the front legs, rear legs and seat support struts of a chair in making the chair more stable and resistant to an inadvertent folding closure.Type: GrantFiled: December 11, 2007Date of Patent: May 18, 2010Inventor: Jianrong Deng
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Patent number: 7631934Abstract: A foldable portable stadium chair folds between a collapsed position for carrying and an open position for seating. Such chair includes an adjustable base member engageable with and securable to a bleacher bench, a chair frame coupled to the adjustable base member and having at least a portion thereof movable towards and away from the adjustable base member, a chair back coupled to a substantially vertical portion of the chair frame, and a chair seat coupled to a substantially horizontal portion of the chair frame.Type: GrantFiled: February 26, 2008Date of Patent: December 15, 2009Inventor: Peter J. Mac Isaac
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Patent number: 7628450Abstract: The present disclosure relates to collapsible chairs in which the backrest, seat, and legrest portions can be folded into a relatively compact configuration. The present disclosure provides a collapsible chair including a backrest having an upper portion and a lower portion, a legrest having an upper portion and a lower portion, a seat having a forward end and a rearward end, wherein the rearward end of the seat is functionally connected to the lower portion of the backrest and the forward end of the seat is functionally connected to the upper portion of the legrest, an armrest including an armrest bar, and a foldable base of support, wherein a seat slide fixed on the foldable base of support is configured for sliding interaction with a side bar of the seat.Type: GrantFiled: September 5, 2006Date of Patent: December 8, 2009Assignee: The Coast Distribution System, Inc.Inventors: Dennis A. Castagnola, Steven J. Paventy
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Patent number: 7401854Abstract: A stackable folding chair has a seat and a back pivotably attached to the rear edge of the seat. Front legs are pivotably attached at right and left edges of the seat. Rear legs are pivotably attached to the bottom of the seat. Armrests are pivotably attached to the seat back and adjustably attached to the front legs. The rear legs are pivotable relative from an extended position a folded position in which the rear legs are substantially parallel to and beneath the seat. Adjustable attachment of the armrests to the front legs allows the angle of the seat back to be adjusted as well as enabling the front legs and seat back to fold substantially parallel to the seat. The stackable folding chair preferably injected molded from plastic.Type: GrantFiled: August 18, 2005Date of Patent: July 22, 2008Assignee: Adams Mfg. Corp.Inventor: William E. Adams
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Patent number: 7273249Abstract: A foldable chair includes: a seat supporting frame; a first pivot-pin unit; a first link-plate unit pivoted to the seat supporting frame through the first pivot-pin unit; a pivot joint unit; a backrest pivoted to the first link-plate unit through the pivot joint unit; an armrest unit pivoted to the backrest; a front leg unit pivoted to the seat supporting frame and the armrest unit; a second link-plate unit pivoted to the pivot joint unit; a second pivot-pin unit; a rear leg unit pivoted to the armrest unit and further pivoted to the second link-plate unit through the second pivot-pin unit; a third pivot-pin unit; and a lock-plate unit pivoted to the rear leg unit through the third pivot-pin unit.Type: GrantFiled: October 20, 2006Date of Patent: September 25, 2007Assignee: Taiwan Shin Yeh Enterprise Co., Ltd.Inventor: Chuen-Jong Tseng
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Patent number: 7185948Abstract: A collapsible reclining chair allowing users to adjust the recline angle according to their desire, and allowing users to use it safely. It comprises a supporting frame consisting of a front and a rear leg frame, a seat tubes, arm tubes a back frame, a feet frame, an armrest pad and a lying pad. The front leg frame and the arm tubes have a fastening device, which is for users to adjust and fix the position of the chair according their desires. A safety device is mounted on the linkage between the rear leg frame and the seat tubes. The safety device is used to fasten and fix the supporting frame, so that the supporting frame will not shift easily due to external force, thus allowing user to use the reclining chair more safely and comfortably.Type: GrantFiled: June 27, 2005Date of Patent: March 6, 2007Inventor: Lausan Chung-Hsin Liu
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Patent number: 7178863Abstract: A seat section and a back section are provided with a rod pivotably forming the rear end of the seat section and the lower end of the back section. A pair of parallel arm rests are also provided. A forward support has a central extent and end extents pivotably coupled to forward pivot points of the arm rests. A rearward support has a central extent and end extents coupled to intermediate pivot points of the arm rests. A front brace is formed of an upper component rotatably coupled to the seat section and a lower component rotatably coupled to the forward support.Type: GrantFiled: July 20, 2005Date of Patent: February 20, 2007Inventor: Charles L. Norval
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Patent number: 7086694Abstract: The folding chair with a safety device has two folding links, a seat frame, a back frame, a rear leg, a front leg, two armrests and two locking sleeves. The seat frame, the back frame and the rear leg are attached pivotally to the folding links. The seat and back frames individually have a seat and a back. The seat frame has two ends and two latches that radially protrude from the seat frame respectively near the ends. The front leg is attached pivotally to the seat frame. The armrests are attached pivotally to the rear and front legs. The locking sleeves are rotatably mounted respectively on ends of the seat frame and individually have a tongue and a slot. The tongues selectively abut and hold the back frame. The slots are transversely formed through the sleeves and hold the latches.Type: GrantFiled: January 31, 2005Date of Patent: August 8, 2006Inventor: Hsi-Chin Huang
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Patent number: 7063380Abstract: This invention discloses a leisure time use easy chair, especially for use in the garden or camping. The chair includes a back, a seat, and a leg rest, with a piece of fabric stretched over the surfaces being formed by these elements, a pair of armrests, and a base with front and rear legs. The chair further includes a transverse link between the front and rear legs. This link has a sliding locking mechanism to maintain a certain incline angle of the back and the leg rest. The position of the sliding mechanism decreases the risk of harm to the user's fingers. In addition, the chair is fully collapsible. The object of the present invention is firstly to solve the problem of safety, and secondly to provide an esthetic and more comfortable easy chair.Type: GrantFiled: July 12, 2005Date of Patent: June 20, 2006Inventor: Zhongmin Cui
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Patent number: 6979056Abstract: The folding chair with a movable shade includes a back support frame and a flexible back support, a seat support frame and a flexible seat and a cross frame member pivotally mounted between the back frame and the seat support frame to provide an angular seating position for the user. A shade member includes a shade frame and a shade element. The shade member is pivotally mounted to a top portion of the back support frame. A control member coupled either to the shade frame or the back support frame establishes the angular shade position of the shade with respect to the back support and the seat support.Type: GrantFiled: November 9, 2004Date of Patent: December 27, 2005Assignee: JGR Copa, LLCInventor: Jacob Goldszer
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Patent number: 6854798Abstract: A bleacher chair for use with a bleacher structure having tiers of bleacher seating of a standard width, said bleacher chair comprising a chair portion, two lateral arm members, a forward member, and a rearward member and wherein the chair portion can rest upon a bleacher seat, and the rearward member does not contact the bleacher structure in a way which would interfere with the placement of the chair portion upon a bleacher seat. A method for vending the bleacher chair of the present invention to those attending events with bleacher seating is also provided.Type: GrantFiled: November 20, 2000Date of Patent: February 15, 2005Inventors: Thomas Mason, Rosetta Mason
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Patent number: 6827395Abstract: A safety lock for folding chair includes a top portion and two lateral wall portions to define an open-bottomed receiving space therebetween. The safety lock is mounted to a rear end of a seat frame tube of the folding chair by extending a shaft pin through two shaft holes provided at a rear end of the safety lock and two through holes provided on the seat frame tube, so that the safety lock may be pivotally turned about the shaft pin between a lock position, in which the seat frame tube is clamped in the receiving space and the folding chair is prevented from collapsing, and a release position, in which the safety lock is turned away from the seat frame tube. The two lateral wall portions have two bottom edges that are always located at finger accessible open positions to facilitate easy turning of the safety lock.Type: GrantFiled: October 8, 2003Date of Patent: December 7, 2004Assignee: Shen-Tai Industry Co., Ltd.Inventors: Teng Yi Wang, Chang I Wu
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Patent number: 6736450Abstract: A collapsible chair includes a frame composed of four pairs of cross legs located on four sides of the chair, namely, front, back and side cross legs. The cross legs are connected at their upper and lower ends with connector blocks and feet, respectively and collapsible in a scissors-like manner. A pair of vertical back legs are located at opposite sides of the back cross legs. A pair of arm rests have front ends pivotably connected to the side cross legs and rear ends pivotably and slidably supported by an arm rest support assembly. In one embodiment, the arm rest support assembly includes a pair of vertical support rods connected to the vertical back legs, and a pair of sleeves pivotably connected to the support rods and adapted to slidably receive the arm rests.Type: GrantFiled: October 15, 2002Date of Patent: May 18, 2004Assignee: Satsuki Co., Ltd.Inventor: Kaoru Miyagi
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Patent number: 6692068Abstract: A deck chair has a frame having a back frame, a seat frame, a leg frame, a front support frame, a rear support frame outside the back frame and two side stretchers. Two positioning members pivotally mount the back frame to the seat. Two armrest-adjusting members are respectively pivotally mounted at top ends of the front support frame and the rear support frame. When the positioning members are locked, the back frame and the seat frame can be pivoted about the positioning members with a changeless included angle.Type: GrantFiled: February 5, 2003Date of Patent: February 17, 2004Inventor: Lai-Fu Tang
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Patent number: 6644732Abstract: A foldable chair is equipped with a locking mechanism for preventing it from accidentally folding in use, which includes two locking devices each consisting of a co-moving element, and an engaging element. Each of the co-moving elements is pivoted to a corresponding joint, at which the seat of the chair is pivoted to the back, at an upper end, and is pivoted to a corresponding rear support leg of the chair at a lower end so that it is in a substantially vertical position when the chair is moved to stretched position. The engaging elements are secured to corresponding rear support legs, and located at such position that the co-moving elements will engage them respectively when the chair is in the stretched position for use.Type: GrantFiled: March 4, 2003Date of Patent: November 11, 2003Assignee: Compex International Co., Ltd.Inventor: Steve Lin
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Patent number: 6607240Abstract: A collapsible chair front and rear leg, seat and back support rods, first and second pairs of cross braces, and solid arm rest, all of which are coupled such that the chair collapses in a single movement in which the front legs approximate each other when the seat support rods pivots towards the back support rods. The seat in preferred chairs is a tensioned seat and continuous with the backrest.Type: GrantFiled: December 19, 2001Date of Patent: August 19, 2003Inventor: Edward Zheng
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Patent number: 6595582Abstract: A folding chair with safety latch device. The device includes an anchor unit which has two ends pivotally engaged with a rear leg and a backrest bracket, and a slide unit coupled with the rear leg. The anchor unit and the slide unit have respectively a latch finger and a latch opening corresponding to with each other to form a latched relationship. The slide unit further has a release opening to allow users to undo the latched relationship only through a tool such that a child sitting on the chair may be prevented from falling down resulting from abrupt folding of the chair caused by incidental release of the latched relationship.Type: GrantFiled: January 9, 2002Date of Patent: July 22, 2003Inventor: Lausan Chung-Hsin Liu
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Publication number: 20030111872Abstract: A collapsible chair front and rear leg, seat and back support rods, first and second pairs of cross braces, and solid arm rest, all of which are coupled such that the chair collapses in a single movement in which the front legs approximate each other when the seat support rods pivots towards the back support rods. The seat in preferred chairs is a tensioned seat and continuous with the backrest.Type: ApplicationFiled: December 19, 2001Publication date: June 19, 2003Inventor: Edward Zheng
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Patent number: 6536839Abstract: A fastening structure for chairs located between a rear foot and a back support of a leisure chair for preventing the leisure chair from unintentionally folding includes a latch sleeve slidably mounted on the rear foot and a fastener pivotally engaged with the rear foot and the back support. When the leisure chair is extended, the latch sleeve may be moved to engage with the fastener to prevent the fastener from moving away from the rear foot such that the rear foot and back support will maintain a latched and engaged relationship thereby to prevent the leisure chair from unintentional folding to ensure users safety.Type: GrantFiled: May 21, 2001Date of Patent: March 25, 2003Inventor: Lausan Liu
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Patent number: 6517151Abstract: A simple safety fastening latch for leisure chair comprises a slidable latch member mounted on an upper tubular portion of a foldable leg and a pivotal member fastened to a lower tubulare portion of the leg. The latch member has an inside wall which has a plurality of first ridges formed thereon. The pivotal member has a tongue section formed at an upper edge thereof. The tongue section also has a plurality second ridges formed thereon. When the latch member is slid to the tongue section, the first ridges will engage with the second ridges to enable the leisure chair be positioned securely.Type: GrantFiled: April 3, 2001Date of Patent: February 11, 2003Inventor: Lausan Chung-Hsin Liu
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Patent number: 6511122Abstract: A foldable chair includes a backrest, a seat member, a pair of elongated armrests, a pair of front legs and rear legs, and a pair of connecting members. The seat member has a rear end connected pivotally to a lower end of the backrest. The front leg has an upper end mounted pivotally to the armrest, and an intermediate portion connected pivotally to the seat member. The rear leg has an upper end pivotally connected to the armrest when the chair is in use or is slidably received in the armrest when folded. The connecting member has a first end mounted pivotally on the lower end of the backrest, and a second end mounted pivotally on an intermediate portion of the rear leg, so that the lower ends of the front legs are close to the lower ends of the rear legs when the chair is folded.Type: GrantFiled: July 27, 2001Date of Patent: January 28, 2003Inventor: Jarn-Chun Chen
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Publication number: 20030011218Abstract: A symmetrical leg frame for chairs is located at two sides of a chair frame. The leg frame at each side consisting of a front leg support and a rear leg support. The front leg support and the rear leg support have respectively an inner curvy and symmetrical side surface facing each other, and have respectively a bottom end engaging with a foot pad to compensate the angle formed by the front and rear leg support when contact ground surface so that the chair may stand on the ground surface steadily when extended. The front leg support and rear leg support are shaped in a symmetrical curve to augment aesthetic appealing of the chair.Type: ApplicationFiled: July 13, 2001Publication date: January 16, 2003Inventor: Lausan Chung-Hsin Liu
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Patent number: 6502899Abstract: A chair includes a backrest member, a seat member and a pair of armrest members. The backrest member has opposite lateral sides, upper and lower ends, and an intermediate portion between the upper and lower ends. The seat member has a rear end pivoted to the lower end of the backrest member. The armrest members are disposed on the lateral sides of the backrest member. Each of the armrest members has a rear end pivoted to the intermediate portion of the backrest member, and an outer wall surface formed with a mounting recess. Each of the armrest members includes a face panel disposed fittingly and detachably in the mounting recess.Type: GrantFiled: March 22, 2001Date of Patent: January 7, 2003Assignee: Shin Yeh Enterprise Co., Ltd.Inventor: Chuen-Jong Tseng
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Patent number: 6471287Abstract: A slide folding structure for folding chairs and chairs includes an anchor yoke fixedly mounted to a support frame to fasten to a rear leg and to serve as a fulcrum, and a displacement yoke slidably mounted to the support frame for fastening to a front leg. When applying force on the chair frame, the front leg will be moved to drive the displacement yoke sliding on the support frame for a selected displacement to fold or extend the folding chair thereby to decrease the folding displacement and enhance safety.Type: GrantFiled: July 13, 2001Date of Patent: October 29, 2002Inventor: Lausan Chung-Hsin Liu
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Publication number: 20020145326Abstract: A fastening structure for backrest and seat pad of a leisure chair includes two sets of foot support, a back support and a seat support. The back support and seat support are fastened together by means of two fastening elements and fasteners, then are fastened to the foot support. The back support and seat support engage respectively with a backrest sleeve and a seat pad sleeve which have coupling sections formed at two lateral sides and one end thereof. The backrest sleeve and seat pad sleeve have a checker type surface formed by braiding a plurality of belts in a stagger fashion to become an integrated pad member thereby to increase the strength of the backrest and seat pad, and make assembly and disassembly easier with less time and work.Type: ApplicationFiled: April 4, 2001Publication date: October 10, 2002Inventor: Lausan Chung-Hsin Liu
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Patent number: 6450569Abstract: An improved folding structure for a folding chair. The structure includes a seat bracket, a backrest bracket pivotally engaged with a rear end of the seat bracket, two armrests pivotally engaged with two sides of the backrest bracket, and front and rear legs located at two sides of the seat bracket and pivotally engaged with the armrests. The backrest bracket and the rear legs are pivotally engaged through a pivotal lever in a toggle joint manner at a pivotal fulcrum. The backrest bracket is coupled with a cradle hub which has a flange extended towards the rear leg. The backrest bracket is allowed to swing about the pivotal fulcrum relative to the rear leg for extending or folding the folding chair with the flange resting on the rear leg to reduce the size of the folding chair when folded.Type: GrantFiled: September 10, 2001Date of Patent: September 17, 2002Inventor: Lausan Chung-Hsin Liu
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Patent number: 6364409Abstract: A folding chair includes collapsible rungs in a backrest and seat permitting folding in two directions. Stability is further enhanced by the upholstery which further forces the top rung of the chair downward and the center rung rearward, making the chair rigid in the open position. Siderails and back supports slide freely along the chair's rear legs creating a folding mechanism that folds the seat upwards while also pulling the rear leg upwards in the same direction resulting in greater stability without increasing the height of the folded package.Type: GrantFiled: February 18, 2000Date of Patent: April 2, 2002Assignee: The Coleman Company, Inc.Inventors: Jonathan Robert Saul, Duane Michael Perpich, David Emil Harnadek, David Richard Collins
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Patent number: 6217111Abstract: A foldable chair assembly includes a backrest member, a seat member pivoted to the backrest member, two elongated armrest members with rear ends pivoted to the backrest member, two front leg members and two rear leg members. Each armrest member has a first portion proximate to a lateral side of the seat member, and a second portion distal to the lateral side of the seat member. Each front leg member has an upper end pivoted to the first portion of a respective armrest member, a lower end, and an intermediate portion pivoted to the seat member. Each rear leg member has an upper end pivoted to the second portion of a respective armrest member, a lower end, and an intermediate portion pivoted to the backrest member. When the chair assembly is in a folded state, the backrest member, the seat member, the armrest members and the front and rear leg members are substantially upright, and the front leg members are disposed between the rear leg members and are generally parallel to the rear leg members.Type: GrantFiled: April 4, 2000Date of Patent: April 17, 2001Assignee: Shin Yeh Enterprise Co., Ltd.Inventor: Chuen-Jong Tseng
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Patent number: 6213545Abstract: An improved foldable chair having a seat and a backrest that can be folded in a linking-up movement includes front and rear leg supports that are spaced apart with the front leg support on the inside, the rear leg support on the outside. The front and rear leg supports are pivotally connected to elbow rests. A middle section of the rear leg support is pivotally connected to a connecting plate having a wider upper portion and a narrower lower portion. The inner side of the connecting plate extends upwardly to form opposite spaced apart N-shaped bends, and is pivotally connected to outer sides of tail ends of the seat and the backrest. During folding of the chair, the front leg support may be folded in the inwardly recessed space of the connecting plate to form a substantially planar surface. Hence, the front and rear leg supports will not be in a stacked manner to occupy much space, and storage and transport costs can be reduced.Type: GrantFiled: July 27, 2000Date of Patent: April 10, 2001Inventor: Wang Lo Chun-Yueh
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Patent number: 6206462Abstract: A pinch preventing mechanism is provided for a collapsible chair having a backrest frame, a seat frame, two armrests, two front legs, and two rear legs. The pinch preventing mechanism includes a pin fixed to one of the rear legs, a sleeve slidably mounted around the associated rear leg, and an engaging device. The sleeve includes a compartment into which the pin extends. A spring is mounted in the compartment and attached between the pin and an end wall defining the compartment, thereby biasing the sleeve downward. An upper end of the engaging device is pivotally connected to a lower end of an associated lateral side of the backrest frame. A lower end of the engaging device is pivotally connected to the associated rear leg in a position below the sleeve. The engaging device further includes a notch, wherein a wedge formed on the sleeve is engaged in the notch of the engaging device when the collapsible chair is in an extended status.Type: GrantFiled: April 17, 2000Date of Patent: March 27, 2001Inventor: Ming-Tai Huang
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Patent number: 6131940Abstract: A structure for a collapsible wheelchair is provided in which the casters are each mounted on a four bar linkage pivoted from a cam actuated rotary lock mechanism on the frame of the chair.Type: GrantFiled: June 11, 1998Date of Patent: October 17, 2000Inventor: Frank W. Arnoth
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Patent number: 6095596Abstract: A folding chair structure includes a fixture and a support with a U-shaped back rod, a seat rod, a rear foot rod and a front foot rod. Wherein, the fixture has a recess and a hole with a pole extending outwardly therefrom. The pole has a cap at the far end. The support has a pair of side walls, one of which side walls has a sliding guide. The back rod is secured into the fixture by inserting one of the two ends into the recess of the fixture. One of the two ends of the seat rod is inserted into the hole of the fixture with the middle portions of two ends of a rear foot rod secured to the support in between the two side walls. And the pole of the fixture is secured in the sliding guide of said support in a sliding manner.Type: GrantFiled: August 20, 1999Date of Patent: August 1, 2000Assignee: Far Great Plastics Industrial Co., Ltd.Inventor: Ting-Hsing Chen
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Patent number: 6062639Abstract: A folding chair having a locking device for locking the chair in the open position so that it is safe for children. The chair has a frame including a seat, a back rest, and legs. The seat includes two parallel seat frame members. the back rest includes two parallel back rest members. The seat frame members are hingeably attached to the back rest members for selectively entering an open position wherein the seat frame members are substantially perpendicular to the back rest members, and a folded or closed position wherein the seat frame members extend substantially parallel to the back rest members. Each seat frame member has a seat frame member rear portion defined as the part of the seat frame member rearward of the back rest member. As the chair is folded the back rest member sweeps rearward, diminishing the size of the seat frame member rear portion.Type: GrantFiled: May 25, 1999Date of Patent: May 16, 2000Inventor: Steven G. Hill
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Patent number: 6030032Abstract: An armrest for a chair includes an armrest frame formed with an elongated channel with a bottom opening, a hollow mounting seat disposed in the channel, and a shaft extending slidably through the mounting seat along an axis parallel to the armrest frame and having opposite ends secured to the armrest frame. The mounting seat has inner surfaces formed with retaining grooves that are registered with one another. Each of the retaining grooves is defined by a front vertical shoulder and a rear inclined shoulder. The inclined shoulder inclines downwardly and forwardly relative to the vertical shoulder. A locking plate is disposed in the mounting seat, and extends into the retaining grooves. The locking plate is formed with a locking hole between upper and lower sections thereof. The locking hole is slightly larger than cross-section of the shaft to permit extension of the shaft therethrough.Type: GrantFiled: January 19, 1999Date of Patent: February 29, 2000Assignee: Shin Yen Enterprise Co., Ltd.Inventor: Chuen-Jong Tseng
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Patent number: 5964500Abstract: A foldable chair includes a U-shaped seat support frame including two seat support rods, a U-shaped front support frame including two front legs each pivotally mounted to the respective seat support rod, a U-shaped rear support frame including two rear legs each pivotally mounted to the respective seat support rod, an inverted U-shaped backrest support frame including two backrest support rods each pivotally mounted to the respective rear leg, two armrests each pivotally mounted between the front leg and the backrest support rod, and two linking rods each pivotally mounted between the front leg and the backrest support rod.Type: GrantFiled: January 12, 1999Date of Patent: October 12, 1999Inventor: Steve Lin
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Patent number: 5947553Abstract: A folding chair includes front and rear leg frames which are pivotally connected to a seat frame, a backrest frame having a lower end portion pivoted to the rear leg frame, a pair of armrest members which have front ends pivoted to the front leg frame and rear ends pivoted to the backrest frame, and a pair of connecting rods which have front ends pivoted to the front portion of the seat frame and rear ends pivoted the backrest frame. A pair of locking plates are fixedly attached to the backrest frame and have lower portions which are movable towards two side tubes of the seat frame when the chair is unfolded. The side tubes of the seat frame are provided with resilient protrusions which are automatically engageable with engaging slots of the locking plates, respectively, when the chair is unfolded, thereby eliminating the need to operate the locking plates during folding and unfolding operations.Type: GrantFiled: November 18, 1997Date of Patent: September 7, 1999Assignee: Shin Yen Enterprise Co., Ltd.Inventor: Chuen-Jong Tseng
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Patent number: 5913572Abstract: A beach chair having multiple rollers is provided which is electrically insulated and that is quiet when rolled upon a hard surface. The frame of the beach chair is curved to fit the curves of the human body so that the weight is evenly distributed over the whole body surface. Thus, edema due to excessive pressure on small body surface areas is eliminated. The open, hollow construction of both the frame and the rollers allows water to enter and exit easily. In this way the chair remains stable and does not float away with wave action. The mulitple, independent rollers allow this lightweight beach chair to turn easily while gripping the sand so that it does not slide sideways. This beach chair rolls easily allowing it to be useful in transporting heavy items over long distances effortlessly over sand, gravel, or pavement without noise.Type: GrantFiled: September 4, 1998Date of Patent: June 22, 1999Inventors: Camille M. Grimaldi, Janice Moschetta, Barbara Wagner
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Patent number: 5911469Abstract: A folding adirondack chair that has a collapsed position and an in-use position. The chair includes a combined seat bottom and rear leg assembly that is pivotally mounted to the combined seat bottom and rear leg assembly, a front leg assembly that is pivotally mounted to the combined seat bottom and rear leg assembly, an arm rest assembly that is pivotally mounted to both the seat back assembly and the front leg assembly, and a stop assembly that maintains the chair in the in-use position.Type: GrantFiled: December 17, 1997Date of Patent: June 15, 1999Inventor: Charles L. Young