# US 10,306,987 B2 · Swing chair > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,306,987 B2 - Document ID: US10306987B2 - Status: Granted - Kind: B2 - Application number: 15/574,485 - Filed: 2017-02-16 - Published: 2018-10-11 - Granted: 2019-06-04 - Earliest claimed: 2016-11-04 - Assignees: Design Park Development Co., Ltd. - Applicants: Design Park Development Co., Ltd. - Inventors: Yo Seob Kim - Web page: https://patentgrep.com/patent/US10306987B2 ## CPC - A47C 3/0255: {pivotally mounted in the base frame, e.g. swings} - A47C 7/62: Accessories for chairs - A47C 11/00: Benches not otherwise provided for - A47D 13/105: {pivotally mounted in a frame} - A61B 5/00: Measuring for diagnostic purposes (radiation diagnosis A61B6/00; diagnosis by ultrasonic, sonic or infrasonic waves A61B8/00); Identification of persons - A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition - A61B 5/1118: {Determining activity level} - A61B 5/6891: {Furniture} - A61H 15/0078: {power-driven} - A61H 23/02: with electric or magnetic drive - A61H 39/04: Devices for pressing such points, e.g. Shiatsu {or Acupressure}(Massage or pressure on general areas A61H9/00 - A61H23/00) - A63G 9/12: Special fastenings of the suspensory point - A63G 9/16: Driving mechanisms, such as ropes, gear, belt, motor drive - A61H 2201/0149: Seat or chair - A61H 2201/1669: moving along the body in a reciprocating manner - A61H 2201/1676: Pivoting - A47C: CHAIRS; SOFAS; BEDS - A47D: FURNITURE SPECIALLY ADAPTED FOR CHILDREN (school benches or desks A47B39/00, A47B41/00) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N) - A63G: MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT ## Abstract A swing chair includes: a support which is installed at a certain height or more above the floor; a main operation member elongated and having a virtual first rotation axis provided to the support at one side thereof and rotatably coupled to the support; a sub operation member elongated and having a virtual second rotation axis, provided to the support at one side thereof and spaced parallel to the first rotation axis, and rotatably coupled to the support; a seat portion coupled to any one of the main operation member and the sub operation member; and a rotation connecting member elongated and arranged in a front-rear direction and having a rear portion that is rotatably coupled to the other side of the main operation member and a front portion that is rotatably coupled to the other side of the sub operation member. ## Claims ### Claim 1 A swing chair comprising: a support which is installed at a certain height or more above a floor; a main operation member which is elongated and has a virtual first rotation axis provided to the support at one side thereof and which is rotatably coupled to the support; a sub operation member which is elongated and has a virtual second rotation axis, provided to the support at one side thereof and spaced parallel to the first rotation axis, and which is rotatably coupled to the support; a seat portion coupled to any one of the main operation member and the sub operation member; and a rotation connecting member which is elongated and arranged in a front-rear direction and has a rear portion that is rotatably coupled to the other side of the main operation member and a front portion that is rotatably coupled to the other side of the sub operation member so that a closed virtual quadrangle is formed together with the support, the main operation member, and the sub operation member, wherein an angle of coupling between the rotation connecting member and the main operation member is changed according to user's operation and the main operation member is interlocked with the virtual quadrangle and swings forward and backward based on the first rotation axis, wherein a portion of the rotation connecting member protrudes forward in a longitudinal direction, wherein the rotation connecting member is adjusted in a state in which a user is seated in the seat portion, and wherein a separate operation handle is provided in front of a point of coupling between the rotation connecting member and the sub operation member, so that the rotation connecting member is arranged at a position where the user approaches the rotation connecting member while being seated in the seat portion. ### Claim 2 (depends on 1) The swing chair of claim 1, wherein the rotation connecting member vertically swings about a point of coupling between the rotation connecting member and the sub operation member. ### Claim 3 (depends on 2) The swing chair of claim 2, wherein when an external force is applied to a front portion of the rotation connecting member to rotate the rotation connecting member rearward, an interior angle of coupling between the rotation connecting member and the main operation member increases in the virtual quadrangle. ### Claim 4 (depends on 1) The swing chair of claim 1, wherein a coupling position of the rotation connecting member and the sub operation member is adjusted along a longitudinal direction. ### Claim 5 (depends on 1) The swing chair of claim 1, wherein the rotation connecting member is extended and contracted forward along a longitudinal direction. ### Claim 6 (depends on 1) The swing chair of claim 1, wherein a front portion of the rotation connecting member along the longitudinal direction is formed in the shape of a foothold, so that the user operates the rotation connecting member using his/her foot while being seated in the seat portion. ### Claim 7 (depends on 1) The swing chair of claim 1, wherein at least a portion of the main operation member in the longitudinal direction is formed in the shape of a wire. ### Claim 8 (depends on 7) The swing chair of claim 7, wherein the seat portion is fixedly coupled to the main operation member. ### Claim 9 (depends on 8) The swing chair of claim 8, wherein an area of the main operation member, which is arranged below the seat portion along the longitudinal direction, is formed in the shape of a frame. ### Claim 10 (depends on 8) The swing chair of claim 8, wherein the sub operation member is formed in the shape of a wire. ### Claim 11 (depends on 7) The swing chair of claim 7, further comprising: a separate auxiliary support member which is elongated, and has one side that is connected to the support and the other side that is connected to the seat portion. ### Claim 12 (depends on 11) The swing chair of claim 11, wherein the auxiliary support member is formed in the shape of a wire. ### Claim 13 (depends on 1) The swing chair of claim 1, wherein the main operation member is formed in the shape of a frame, and wherein the sub operation member is formed in the shape of a wire. ### Claim 14 (depends on 13) The swing chair of claim 13, wherein the seat portion is fixedly coupled to a lower portion of the main operation member. ### Claim 15 (depends on 13) The swing chair of claim 13, wherein the seat portion is fixedly coupled to a lower portion of the sub operation member. ### Claim 16 (depends on 1) The swing chair of claim 1, wherein the main operation member is formed in the shape of a wire, and wherein the sub operation member is formed in the shape of a frame. ### Claim 17 (depends on 16) The swing chair of claim 16, wherein the seat portion is fixedly coupled to a lower portion of the main operation member. ### Claim 18 (depends on 1) The swing chair of claim 1, wherein the main operation member and the sub operation member are formed in the shape of a frame. ### Claim 19 (depends on 18) The swing chair of claim 18, wherein the first rotation axis and the second rotation axis are spaced apart from each other in a front-rear direction, and are coupled to the support. ### Claim 20 (depends on 1) The swing chair of claim 1, wherein a handle is further provided in at least one of the seat portion and the rotation connecting member. ### Claim 21 (depends on 1) The swing chair of claim 1, wherein the main operation member is provided in plurality, and the main operation members are spaced apart from each other on the first rotation axis, and wherein the seat portion is fixedly coupled between the main operation members. ### Claim 22 (depends on 1) The swing chair of claim 1, wherein the sub operation member is provided in plurality, and the sub operation members are spaced apart from each other on the second rotation axis, and wherein the seat portion is fixedly coupled between the sub operation members. ### Claim 23 (depends on 1) The swing chair of claim 1, wherein the seat portion further comprises a cradle. ### Claim 24 (depends on 1) The swing chair of claim 1, wherein the seat portion or the rotation connecting member further comprises a massage means. ### Claim 25 (depends on 1) The swing chair of claim 1, wherein the seat portion further comprises a means configured to measure physical information.