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Class 297/39 - Back, arm, bottom, and front leg form collapsible parallelogram


Subclass of Class 297 - Chairs and seats
Definition: Device wherein the armrest in cooperation with the bottom,
No. of patents: 76
Last issue date: 07/22/2008


1    
NumberTitleIssue Date
7401854Stackable folding chair
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...
07/22/2008
7293826Folding chair with an anti-pinching device
A folding chair includes first and second parts each having at least one leg, a total number legs of the first and second parts being at least three. A third part of the chair forms a seat and is pivotally connected to the first and second parts. A connecting assemb...
11/13/2007
7273249Foldable chair
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 uni...
09/25/2007
7219955Anti-pinching device for use in a folding chair
A folding chair includes first and second parts each having at least one leg, a total number legs of the first and second parts being at least three. A third part of the chair forms a seat and is pivotally connected to the first and second parts. A connecting assemb...
05/22/2007
7185948Collapsible reclining chair
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, a...
03/06/2007
7178863Enlarged foldable chair system
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 coupl...
02/20/2007
7156456Foldable chair
A foldable chair has a supporting shaft assembly, a frame assembly, a connecting shaft assembly and a cushion mounted on the frame. The supporting shaft assembly has two parallel rockers connected by multiple transverse shafts and four curved shafts rotatably mounte...
01/02/2007
7128367Foldable highchair framework
A foldable highchair framework includes a folded support stand, a chair, a link assembly and a positioning mechanism. The folded support stand includes a front stand and a rear stand capable of being drawn close. The chair includes a seat and a backrest pivoted to e...
10/31/2006
7117565Support for fixing an accessory to a flexible arm
Support for fixing an accessory (3) to a flexible arm (1), characterized in that this support (2) comprises at least one leg (11) fixed with one far end (13) to one of the far ends (6–7) of adjoining hinge-mounted parts (
10/10/2006
7118121Stroller frame structure
A stroller frame structure includes a front wheel rack, a rear wheel rack, a first linkage assembly, a coupling dock, a handle tube, a release mechanism, an armrest and a second linkage assembly that are pivotally coupled with one another. The handle tube has a lowe...
10/10/2006
7086694Folding chair with a safety device
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 fr...
08/08/2006
7063380Collapsible easy chair
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 ...
06/20/2006
7029064Collapsible high chair for children
A collapsible high chair for children comprises a frame, a seat portion, a backrest and an adjusting mechanism, all of which are sequentially connected with. The adjusting mechanism further comprises a pivotal member connecting the seat portion and the frame, a firs...
04/18/2006
6979056Beach chair with movable shade
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 posi...
12/27/2005
6976733Folding chair with integral table
A folding chair suitable for outdoor use includes a table supporting arm and a foldable table that rotates between a position for use by one seated in the chair and a stowed position. The chair can be folded flat with the table parallel to the folded chair legs....
12/20/2005
6902231Collapsible chair
A collapsible chair includes front and rear leg members interconnected pivotally at upper end areas. A connector is connected pivotally to the rear leg member, and an extension limiter is connected pivotally to the connector at one end and to the front leg member at...
06/07/2005
6902489Foldable swing with seat recline mechanism
A seat recline mechanism for a child swing includes at least one latch, positioned on a side of a seat back of the swing, and first and second latch-receiving members, positioned on a hanger arm of the swing. The latch is configured to engage the first latch-receivi...
06/07/2005
6854798Bleacher chair and method of vending same
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 bl...
02/15/2005
6827395Safety lock for folding chair
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 shaf...
12/07/2004
6736450Collapsible chair
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 collaps...
05/18/2004
6692068Deck chair
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 ...
02/17/2004
6644732Structure of a foldable chair with a locking mechanism
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 co...
11/11/2003
6607240Collapsible chair with solid arm rest and tensioned seat
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...
08/19/2003
6595582Folding chair with safety latch device
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 la...
07/22/2003
6536839Fastening structure for chairs
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 wit...
03/25/2003
6517151Safety fastening latch for leisure chair
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...
02/11/2003
6511122Foldable chair having a reduced storage space in a folded state and adjustable backrest inclination
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 a...
01/28/2003
6502899Chair having an armrest with a detachable face panel
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 ...
01/07/2003
6471287Slide folding structure for folding chairs and chairs
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 le...
10/29/2002
6450569Folding structure for folding chairs
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 l...
09/17/2002
6364409Folding chair
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 ...
04/02/2002
6217111Foldable chair assembly
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 firs...
04/17/2001
6213545Foldable chair
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 rea...
04/10/2001
6206462Pinch preventing mechanism for a collapsible chair
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...
03/27/2001
6131940Tilt-in-space wheelchair
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....
10/17/2000
6095596Folding chair structure
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 en...
08/01/2000
6062639Folding chair with integral safety feature
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 tw...
05/16/2000
6030032Armrest for a chair
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 a...
02/29/2000
5964500Security device for foldable chair
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 le...
10/12/1999
5947553Folding chair
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...
09/07/1999
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