Tray and mounting member therefor

Claim 2

A service tray for detachable mounting to the arm of a chair which comprises: a baseplate, said baseplate having a substantially U-shaped cross section, one of the legs of the said U-shaped plate spring-biased toward the other of said legs whereby an object placed between said legs will be retained therebetween by the spring clamping thereof, the other of said legs having a length greater than said one leg and having a pivot mount therein at a point beyond the end of said one leg, a tray having a substantially flat base portion, said tray having a pivot mount therein, said pivot point on said tray located off center, and said tray and said baseplate pivotally attached together at said pivot mounts whereby pivoting of said tray with respect to said baseplate moves the centerpoint of the said tray with respect to the arm of a chair enclamped between the said legs of the said U-shaped baseplate.

Claim 3

The tray of claim 1 wherein the said one leg comprises two spaced-apart portions each of which is spring biased towards the other of said legs.

Claim 4

A service tray assembly adapted to be demountably attached to the arm of a chair including: a base member having a side-to-side dimension larger than the width of the arm, one side thereof having a portion depending therefrom at substantially a right angle thereto, spring clamp means inteGral with said portion projecting therefrom and underlying in spaced relation a part of said base member, said clamp means spring-biased towards said base member, said base member, said portion and said clamp means dimensioned to entrap the arm of the chair therebetween to demountably affix said baseplate to the arm, the side of said base member opposite the said portion adapted to project beyond a side of the arm into a position overlying the seat of the chair, said base member having a pivot mount overlying the seat of the chair, a tray member, said tray member having a bottom portion, said bottom portion having a pivot mount spaced from the centerpoint of said tray member, and said tray member and said base member pivotably attached at said pivot mount whereby the said tray member may be swung from a position substantially overlying the seat of the chair to a position substantially alongside the said chair without detaching the said base plate from the arm of the chair.

Claim 5

A service tray assembly adapted to be demountably attached to the arm of a chair including: a base member having a side-to-side dimension larger than the width of the arm, one side thereof having a portion depending therefrom at substantially a right angle thereto, spring clamp means inteGral with said portion projecting therefrom and underlying in spaced relation a part of said base member, said clamp means spring-biased towards said base member, said base member, said portion and said clamp means dimensioned to entrap the arm of the chair therebetween to demountably affix said baseplate to the arm, the side of said base member opposite the said portion adapted to project beyond a side of the arm into a position overlying the seat of the chair, said base member having a pivot mount overlying the seat of the chair, a tray member, said tray member having a bottom portion, said bottom portion having a pivot mount spaced from the centerpoint of said tray member, and said tray member and said base member pivotably attached at said pivot mount whereby the said tray member may be swung from a position substantially overlying the seat of the chair to a position substantially alongside the said chair without detaching the said base plate from the arm of the chair.

Claim 6

The assembly of claim 3 wherein the said tray member includes means for retaining a container within a defined area of the said base of the said tray.