Safety device for restraining a child in a chair

Claim 1

A device to deter a child from leaving a chair which has a seat, a back, arms and a front seat edge remote from the chair back, comprising, in combination: a platform carried on the seat of the chair and fixed thereto by a plurality of flexible tethers extending from said platform to the chair such that, said platform is constrained from removal from the chair but moves with respect to the chair, and an upwardly extending horn formed on a top surface of said platform, adjacent the front edge of the chair so that when the child sits on the chair and straddles said horn, the child cannot slide from the chair but can move without affecting the chair's stability, wherein said horn is generally configured as an upwardly tapering four sided pyramid having a top wall, front and rear walls connected by side walls, and with radiused areas of transition between each adjacent said pyramid wall to provide no sharp edges or projections, wherein each intersection lateral, front and rear edge of said platform is radiused at 3/4 of an inch, wherein said front wall of said pyramid horn terminates at a lowermost portion adjacent to said platform front edge and tapers upwardly and inboard said front edge at an angle of three degrees from a vertical plane, wherein said pyramid rear wall and side walls are tapered inwardly and upwardly at an angle of 5 degrees from vertical, wherein transition between said pyramid rear and side walls are radiused with respect to said platform by a 5/8 of an inch radius, wherein said radius between said top wall, said front and rear pyramid walls and said pyramid side walls are 1/2 of an inch radius, wherein the width of a planar topmost portion of said pyramid's rear wall and said side wall are 1/2 of an inch, and said front wall width at the same vertical elevation is one inch, wherein said tether means is a strand of cord, and wherein a periphery of said platform defines a two step flange with a downwardly extending peripheral ridge.

Claim 2

A device to deter a child from leaving a chair which has a seat, a back, arms and a front seat edge remote from the chair back, comprising, in combination: a platform carried on the seat of the chair and fixed thereto by a plurality of flexible tethers extending from said platform to the chair such that, said platform is constrained from removal from the chair but moves with respect to the chair, and an upwardly extending horn formed on a top surface of said platform, adjacent the front edge of the chair so that when the child sits on the chair and straddles said horn, the child cannot slide from the chair but can move without affecting the chair's stability, wherein said horn is generally configured as an upwardly tapering four sided pyramid having a top wall, front and rear walls connected by side walls, and with radiused areas of transition between each adjacent said pyramid wall to provide no sharp edges or projections, wherein each intersection lateral, front and rear edge of said platform is radiused at 3/4 of an inch, wherein said front wall of said pyramid horn terminates at a lowermost portion adjacent to said platform front edge and tapers upwardly and inboard said front edge at an angle of three degrees from a vertical plane, wherein said pyramid rear wall and side walls are tapered inwardly and upwardly at an angle of 5 degrees from vertical, wherein transition between said pyramid rear and side walls are radiused with respect to said platform by a 5/8 of an inch radius, wherein said radius between said top wall, said front and rear pyramid walls and said pyramid side walls are 1/2 of an inch radius, wherein the width of a planar topmost portion of said pyramid's rear wall and said side wall are 1/2 of an inch, and said front wall width at the same vertical elevation is one inch, wherein said tether means is a strand of cord, and wherein a periphery of said platform defines a two step flange with a downwardly extending peripheral ridge.