Pivotally Connected To Bottom Or Support Frame Patents (Class 297/271.4)
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Patent number: 8956313Abstract: This application is related to an apparatus and method for improving venous blood flow in mobility-impaired patients. In one aspect, the apparatus is a motorized or powered rocking chair with a footplate. The rocking chair and footplate rotate through physiologically relevant ranges of motion either at the same frequency or at different frequencies in order to mechanically induce a calf muscle pump action in the dependent legs of a mobility-impaired patient. Artificially inducing the calf muscle pump action in such patients acts to boost the action of the heart and lessen blood pooling in the lower extremities of the legs.Type: GrantFiled: March 21, 2011Date of Patent: February 17, 2015Inventor: Amy Bryant
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Patent number: 8857907Abstract: A massage machine that can stably rock a chair main body in a forward-backward direction and that has minimal overall height comprising a chair main body, a base which supports the chair main body, massage portions provided in the chair main body, and a rocking mechanism portion which rocks the chair main body in the forward-backward direction with respect to the base. The rocking mechanism portion includes link members, each of which has a lower portion pivotally supported by the base and an upper portion pivotally supporting the chair main body. The chair main body is rocked in the forward-backward direction by rocking the upper portions of the link members in the forward-backward direction.Type: GrantFiled: September 14, 2012Date of Patent: October 14, 2014Assignee: Family Inada Co., Ltd.Inventor: Tomoki Nagamitsu
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Patent number: 8616627Abstract: A gliding-reclining seating unit includes: a base configured to rest on an underlying surface; an arm frame; a gliding mechanism attached to the base and to the arm frame, the gliding mechanism configured to enable the arm frame to reciprocate in a longitudinal direction relative to the base; a generally horizontally-disposed seat; a generally upright backrest positioned rearwardly of the seat; a footrest unit; and a reclining mechanism that interconnects and controls movement of the seat and the backrest relative to the frame between an upright position and a reclined position. In the upright position, the backrest is generally upright and positioned above the frame, and the seat has a first rearward position relative to the frame. In the reclined position, the backrest is reclined relative to the underlying surface as compared to its disposition in the upright position and the seat has a second forward position relative to the frame that is forward of the first rearward position.Type: GrantFiled: November 8, 2010Date of Patent: December 31, 2013Assignee: Ultra-Mek, Inc.Inventors: Marcus L. Murphy, D. Stephen Hoffman
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Patent number: 7552970Abstract: A furniture mechanism includes first and second side plates. First and second support members are rotatably pinned to the side plates. First and second pantograph linkage sets are each linked to one of the side plates and each extend from a stowed position to a fully extended position and support a user leg rest. A base frame includes first and second side channels. A U-shaped leaf spring interconnected to the first and second side channels and connected to the support members permits co-rotation of at least the connection plates, the pantograph linkage sets, and the support members with respect to the base frame. First and second tilt cams are rotatably fastened to the support members. The tilt cams each include multiple cam faces which define a plurality of temporary detent positions of the mechanism by contact of individual cam faces with the side channels.Type: GrantFiled: July 11, 2006Date of Patent: June 30, 2009Assignee: La-Z-Boy IncorporatedInventor: Larry P. LaPointe
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Patent number: 7455359Abstract: A rocking chair (1) comprising a frame (3) and a seat (2) which is swingable relative to the frame (3). The rocking chair (1) is characterised by a leg (4) and a swing mechanism (5). The leg (4) comprises a first upper (14) and a second lower end (15). The first end (14) is articulated to the seat (2) and the second end (15) is articulated to the frame (3). The swing mechanism (5) comprises a swinging arm (21) which has its pivot (22) arranged in the frame (3). The free end (23) of the swinging arm (21) is articulated to the seat (2) in such a manner that the free end (23) of the swinging arm (21) is arranged below the pivot (22) of the swinging arm (21).Type: GrantFiled: October 8, 2004Date of Patent: November 25, 2008Inventor: Lennart Rönning
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Patent number: 7156456Abstract: 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 mounted respectively on ends of the rockers. Thus, the foldable chair can be used as a general chair or a rocking chair. A frame assembly has two seat bars, a backrest bar pivotally mounted on the seat bars, a foot bar and two armrests pivotally mounted on the foot bars. The connecting shaft assembly has two rear shafts and two front shafts all connected with the seat bars and the rockers and further has two positioning boards mounted on the rockers and each positioning board has detents. The rotatable curved shafts on the rockers allow the foldable chair to be used as a general chair or a rocking chair.Type: GrantFiled: August 22, 2006Date of Patent: January 2, 2007Inventor: Chih-Liang Chen
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Patent number: 6918632Abstract: In preferred embodiments of the invention, rocker cams are positioned intermediate an upper plate assembly and a lower base with a plurality of biasing springs under tension extending between the upper plate assembly and the lower base. Spring retention means are incorporated into the lower base and upper plate assembly providing for direct attachment of the biasing springs thereto obviating the need for spring mechanisms and threaded fasteners for connecting the spring mechanism to the upper plate and lower base. The base comprising a lower support plate configured as a gusseted tray connects to a pair of floor contacting side rails. The upper plate assembly, also preferably configured as a gusseted tray, is fixed to the pair of rocker cams rockingly engaged on the side rails. Vertical flanges are provided on the sides of the upper plate assembly for attaching the reclining mechanism.Type: GrantFiled: February 18, 2004Date of Patent: July 19, 2005Assignee: Ashley Furniture Industries, Inc.Inventors: Gregory J. Maki, Michael J. Dotta
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Patent number: 6676206Abstract: A rocking, reclining, foldable chair is disclosed. The invention comprises a curved rocker or rockers having a limiting extension; a leg or legs pivotally attached to said rocker; a seat pivotally attached to said leg or legs; a releasable support pivotally attached to any two of the aforesaid parts to prevent said chair from folding unexpectedly; a back pivotally attached to said seat or leg or legs; a pair of arms movably connected to said back; and a leg rest pivotally attached to said seat and said arms, said leg rest being movable between a rocking and a reclining position; and moving means for moving said leg rest, said back and said seat between said rocking and said reclining position.Type: GrantFiled: May 16, 2002Date of Patent: January 13, 2004Inventor: Daniel B. Brandschain