# US 9,752,631 B2 · Mechanism, use and method for controlling a rotary plate of a carousel, and merry-go-round comprising such a carousel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,631 B2 - Document ID: US9752631B2 - Status: Granted - Kind: B2 - Application number: 15/120,178 - Filed: 2015-02-17 - Published: 2017-03-02 - Granted: 2017-09-05 - Earliest claimed: 2014-02-21 - Applicants: Frederic Lucas; Victor Lucas - Inventors: Frederic Lucas; Victor Lucas - Web page: https://patentgrep.com/patent/US9752631B2 ## CPC - F16D 51/12: mechanically actuated - A63G 1/10: electrically driven - B60T 1/005: {by locking of wheel or transmission rotation} - B60T 1/062: {acting on transmission parts} - F16D 51/20: extending in opposite directions from their pivots - F16D 63/006: {Positive locking brakes} - F16D 65/08: for internally-engaging brakes - F16D 65/22: adapted for pressing members apart {, e.g. for drum brakes} - F16D 71/00: Mechanisms for bringing members to rest in a predetermined position (combined with or controlling clutches F16D43/26; means for initiating operation of brakes at a predetermined position F16D65/14; means for securing members after operation F16B1/02) - G07F 17/32: for games, toys, sports, or amusements - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - A63G: MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT - B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES - G07F: COIN-FREED OR LIKE APPARATUS (coin sorting G07D3/00; coin testing G07D5/00; {handling coins or paper currencies apart from payment activated apparatus G07D; payment architectures, schemes or protocols G06Q20/00}) ## Abstract The invention relates to a carousel that is supported by a rotary plate controlled by a control mechanism (20). The mechanism (20) comprises: means for restraining said rotary plate (10) which are controlled in two states, a restrained state and a released state, said means being suitable for providing, in said restrained state, a rotational restraint of said rotary plate (10), and for allowing, in said released state, a free rotation of said rotary plate (10), and a device (36) for controlling said restraint means that is suitable for driving, on command, said restraint means into said released state, said restraint means being in the restrained state by default. ## Claims ### Claim 1 A carousel supported by a rotary plate, controlled by a control mechanism comprising: means for restraining said rotary plate, said restraining means being controlled in two states, a restrained state and a released state, said restraining means being suitable for providing, in said restrained state, a rotational restraint of said rotary plate, and for allowing, in said released state, a free rotation of said rotary plate, a device controlling said restraint means that drives, on command, said restraint means into said released state, said restraint means being in the restrained state by default, and a timing means having a predefined duration, and in that the control device is suitable for driving the restraint means into said released state during the timing period. ### Claim 2 (depends on 1) The carousel according to claim 1, wherein said means for restraining the rotary plate comprises means for braking the rotation of the rotary plate. ### Claim 3 (depends on 1) The carousel according to claim 1, wherein said rotary plate is a circular rotary plate surrounded by a ring that is rigidly connected to and projects from said plate, wherein said braking means comprises a device moving braking wheels between a deployed position in which the wheels press on the ring so as to prevent free rotation of the plate, and a retracted position in which the wheels are separated from the ring so as not to restrain the free rotation of the plate. ### Claim 4 (depends on 1) The carousel according to claim 1, wherein said means for restraining the rotary plate comprise means for locking the rotary plate in rotation. ### Claim 5 (depends on 4) The carousel according to claim 4, wherein the locking means comprise a rod that extends in a direction perpendicular to the plate and is suitable for being inserted in an opening that is shaped to the rod and is provided on the rotary plate so as to lock the rotation of said rotary plate when the mechanism is in the restrained state. ### Claim 6 (depends on 1) The carousel according to claim 1, wherein the control device comprises a man-machine interface suitable for triggering a command for said restraint means in said released state. ### Claim 7 (depends on 6) The carousel according to claim 6, wherein the man-machine interface comprises a payment device, said payment device triggering said command. ### Claim 8 A merry-go-round comprising a carousel, a rotary plate and a control mechanism comprising: means for restraining said rotary plate, said restraining means being controlled in two states, a restrained state and a released state, said restraining means being suitable for providing, in said restrained state, a rotational restraint of said rotary plate, and for allowing, in said released state, a free rotation of said rotary plate, a device controlling said restraint means that drives, on command, said restraint means into said released state, said restraint means being in the restrained state by default, and a timing means having a predefined duration, and in that the control device is suitable for driving the restraint means into said released state during the timing period. ### Claim 9 A method for controlling a rotary plate supporting a carousel, the method comprising: restraining a free rotation of the rotary plate with a restraint means comprising two states—a restrained state and a released state, controlling a release of the restrained rotary plate into the released state, during which the rotary plate rotates freely, triggering a timing period during which the rotary plate is released by commanding the restraint means into the released state, at the end of the timing period, braking rotation of said rotary plate until rotation of said plate stops, and, when the rotation of said plate stops, locking said plate from rotation.