# US 5,707,295 A · Swing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,707,295 A - Document ID: US5707295A - Status: Granted - Kind: A - Application number: 08/754,989 - Filed: 1996-11-22 - Granted: 1998-01-13 - Earliest claimed: 1996-11-22 - Inventors: David Noel Shingledecker - Web page: https://patentgrep.com/patent/US5707295A ## CPC - A63G 9/00: Swings - A63G: MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT ## Abstract A swing having a stationary support member to which is pivotally attached to first and second arms. The first and second arms are in turn pivotally attached by connectors on side wings that extend from a base member. The base member has an arcuate surface that extends from a first end to a second end with the side wings extending on a tangent from the second end for a fixed distance to a terminus point. The center of gravity of the attached base member is selected such that the base member is in an approximate horizontal plane with the first and second arms in a rest position. A person mounts the base member to define a prone position with their hands on a handle adjacent the first end and feet located on a support attached to the terminus point of the side wings. As the person propels the base member in an arc about a first pivot of the first and second arms and stationary support, the base member pivots rotates in a counter manner on yokes which attached the side wings. The first and second ends of the base member remain in a substantially proportional and equal distances from a ground lines as the base member sequentially moves through parallel and horizontal planes with respect to the ground line to give the person a sensation of speed. ## Claims ### Claim 1 A swing comprising: a stationary member; a first arm having a first end pivotally attached to said stationary member and a second end; a second arm having a first end pivotally attached to said support member and a second end; a base member having a first end and a second end, said base member having an arcuate surface that substantially extends from said first end to said second end, said base member having first and second perpendicular side wings with first and second apex points, respectively, located above said base and first and second terminus points, said first and second terminus points being located along tangents that extend from said second end of said base member; a support attached to said first and second terminus points; a handle secured to said base member at a location adjacent said first end; and connector means for pivotally joining said second end of said first and second arms to said first and second apex points, said first and second arms allowing a person to propel said base in a first arc about said stationary member while said base member is maintained in sequential horizontal planes by pivoting about said connector means to impart a sensation of speed to the person. ### Claim 2 (depends on 1) The swing as recited in claim 1 wherein said connector means includes: stop means which limit the pivotal movement about said first and second apex points. ### Claim 3 (depends on 2) The swing as recited in claim 2 wherein said base member has a projection that extends from a mid-point between said first and second ends, said projection having approximately one-half of the width of said base member from said second end to said midpoint. ### Claim 4 (depends on 3) The swing as recited in claim 3 wherein said handle includes: a first hand hold; and a second hand hold, said first and second hand holds being connected to said projection at a location such that the center of gravity of said base member with first and second side wings and support is located in a horizontal plane with said first and second arms when the base member is in a stationary position. ### Claim 5 (depends on 4) The swing as recited in claim 4 wherein said connector means includes: first and second yoke means attached to said second ends of said first and second arms, said first and second yoke means surrounding said first and second apex points, respectively, and each having a pivot pin that joins said base member to said first and second arms. ### Claim 6 (depends on 5) The swing as recited in claim 5 wherein said connector means further includes: first and second end plates connected to said first and second apex points to prevent said pivot pins from being removed from said first and second yokes while at the preventing exposure of said stops means. ### Claim 7 (depends on 6) The swing as recited in claim 6 wherein said projection further includes: a central rung located between said base and handle to assist in allowing a person to mount said base member. ### Claim 8 (depends on 7) The swing as recited in claim 7 wherein said first and second ends of said base member on moving through said first arc are maintained at substantially equal distances of vertical planes with respect to the ground. ### Claim 9 (depends on 8) The swing as recited in claim 8 wherein said base remains in a horizontal position with respect to the ground as long as said first arc defined by the fixed point of attachment with the stationary support and first and second arms does not exceed approximately 60 degrees. ### Claim 10 (depends on 9) The swing as recited in claim 9 wherein said center of gravity and the engagement of said first and second stop means prevent said base member from reaching a point above the tangent of said arcuate surface of said base member.