US2497658A

US2497658A - Collapsible auxiliary seat

Info

Publication number: US2497658A
Application number: US72326A
Authority: US
Inventors: Menno H Davis
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-01-24
Filing date: 1949-01-24
Publication date: 1950-02-14
Anticipated expiration: 1967-02-14

Description

Feb. 14, 1950 M. H. DAVlS COLLAPSIBLE AUXILIARY SEAT I Filed Jan. 24, 1949 INVENTOR.

MENNO H. DAVIS ATTORNEYS Patented Feb. 14, 1950 UNITED STATES PATENT OFFICE COLLAPSIBLE AUXILIARY SEAT Menno H. Davis, Detroit, Mich.

Application January 24, 1949, Serial No. 72,326

4 Claims.

The invention relates to collapsible auxiliary seats, more particularly designed for the use of small children and of a type illustrated in my former Patent No. 1,431,291, issued October 10, 1922.

It is the object of the invention to obtain a simplified construction which can be manufac tured at lower cost, has greater strength and a reduction in weight in comparison with my earlier construction, and also has other advantages as more fully hereinafter set forth.

In the drawings:

Fig. 1 is a side elevation of the auxiliary seat as in condition for use;

Fig. 2 is a perspective view of the seat including its tray and in partially collapsed condition;

Fig. 3 is a section on line 3-3, Fig. l; and

Fig. 4 is a section illustrating the manner of forming the hinge between the seat and back and also the cushion for the rear of the seat against its support.

As has been stated, the seat is designed primarily for use by small children, and is of a construction which can be quickly mounted upon any suitable support, such as the back portion of a full-sized chair. So supported the seat will be at proper height for the child in respect to a table, and the arms and tray will securely lock the child against falling out. To reduce the number of parts and to simplify the construction thereof, the specific construction is as follows.

, A is the seat proper and B a back member, each of which is formed of a generally U-shaped, single wire frame having a thin sheet extending across between and wrapped around the opposite arms of the U. These arms are not exactly parallel but diverge from the adjacent edge portions of the seat and back towards the outer ends thereof. More specifically, the U-shaped wire frame C for the seat member A has its cross member C at the outer end of the seat, while the arms C at their inner ends have open return bends D extending parallel to each other in vertical planes, with the opening of each return bend at the bottom. The U-shaped wire frame E for the back member B has its cross bar E engaging the return bends D of the seat frame C to form a hinge connection therewith. The bar E. is retained in such engagement by resilient sleeves F, each surrounding and secured to the outer arm of the return bend and bearing against the bot-- tom of said bar. Such sleeves also form cushions forcontacting with the chair back or other member on which the auxiliary chair is supported. The wire frame E has at its upper end return bends G adapted to hook over the top of the chair back or other support. These are preferably covered with a rubber tube G to prevent injury to the supporting member. The sheet members H and I, respectively, for the seat and back may be formed of sheet metal, plastic or any other suitable material, and, as the opposite ends of each are wrapped about the arms of the frame they will be securely attached thereto. To complete the structure, there are side arm members J and a tray member K. Each side arm member comprises a wire bent into the form of a right angle triangle with one of the right sides J vertical and the other J horizontal. The hypotenuse portion J extends from an apex at its outer end to cross the vertical member J to which it is attached preferably by soldering. The lower end of the portion J has an eye J embracing and forming hinge connection with the side C of the seat frame C. To permit of such engagement, the member H is cut away at H. The arm J also has a member J which extends obliquely across the triangular portion and is attached thereto preferably by soldering. The lower end of the member J has an eye portion J which embraces the arm C of the seat frame forming a further hinge connection between the seat and the side arm. At its upper end the member J has a hook J' which can be sprung into engagement with the frame E of the back B just above the cross sheet I, thereby forming a diagonal brace extending between the back and the seat. The tray K is preferably formed of pressed sheet metal, or other suitable sheet material, and extends across between the horizontal portions J of the opposite side arms J. The tray is detachably secured to these side arms by means of open return bends K on its underside, which may be engaged with the portions J by springing the arm inward. When thus engaged, a child upon the seat A will be securely fastened as the arms J are on opposite sides and the tray K at the front.

When the auxiliary seat is not in use, it can be collapsed by first disengaging the tray, then disengaging the hooks J" from the back frame E after which the arms J may be folded over the seat, as illustrated in Fig. 1 where one of said arms is so folded, while the other one remains in upright position. After both arms are folded, the back B may be turned down over the seat A and the tray K placed above parallel to these members. The seat may also be as quickly extended for use by first swinging up the back B, then the arms J engaging the hooks J" with the back frame E. Finally the tray K may be placed in position by engaging one of the return bends K with one of the arms after which the other arm is sprung inward sufiiciently to engage the second return bend K. The whole structure is one in which the separate parts are easily manufactured and assembled with each other, weight being reduced to the minimum without loss in strength or rigidv.

What I claim as my invention is:

1. In a collapsible auxiliary seat, seatand back members-each formed of a generally U-shaped single wire frame and a sheet extending across between and Wrapped about opposite side members of said frame, each U-shaped frame having at its ends vertically extending open return bends with the return bends of the seat frame embrac ing the cross member of the back frame to form a hinge connection thereto, and a resilient sleeve on the downturned portion of each of the seat frame return bends completing the hinge connection and also constituting a cushion for the seat against its support.

2; In a collapsible auxiliary seat, seat and back members each formed of a generally U-shaped single wire frame and a sheet extending across between and wrapped about opposite side members of said frame, each U-shaped frame having at its ends vertically extending open return bends with the return bends. of the seat frame embracing the cross member of the back frame to form a hinge connection thereto, a resilient sleeve on the downturned portion of each of the seat frame return bends completing the hinge connection and also constituting a cushion for the seat against its support, and side arm members hinged to opposite sides of the seat frame member to be foldable over the seat in collapsed position, each of said side arm members including an obliquely extending portion detachably engageable at its upper end with the back frame to form a rigid brace between the seat and back.

3. In a collapsible auxiliary seat, seat and b ok members each formed of a generally U-shaped single wire frame and a sheet extending across between and wrapped about opposite side members of said frame, each U-shaped frame having at its ends vertically extending open return bends with the return bends of the seat frame embracing the cross member of the back frame to form a hinge connection thereto, a resilient sleeve on the downturned portion of each of the seat frame return bends completing the hinge connection and also constituting a cushion for the seat against its support, and side arm members hinged to opposite sides of the seat frame member to be foldable over the seat in collapsed position, each of said side arm members including a wire frame of right triangular form having a vertical portion with an eye at the lower end thereof embracing a side arm of the base frame and a horizontally extending portion at the upper end of said vertical portion, and a tray extending between and attachable to; the horizontal portions of the opposite side arms.

4. In a collapsible auxiliary seat, seat and back members each formed of a generally U-shaped single wire frame and a sheet extending across between and wrapped about opposite side members of said frame, each U-shaped frame having at its ends vertically extending open return bends with the return bends of the seat frame embracing the cross member of the back frame to form a hinge connection thereto, a resilient sleeve on the downturned portion of each of the seat frame return bends completing the hinge connection and also constituting a cushion for the seat against its support, and side arm members hinged to opposite sides of the seat frame member to be foldable over the seat in collapsed position, each of said side arm members including. a wire frame of'right triangular form having a vertical portion with an eye at the lower end thereof embracing aside arm of the base frame and a horizontally extending portion at the upper end of said vertical portion, and a tray extending between and attachable to the horizontal portions of the opposite side arms, each of said side arms also including an obliquely extending brace member crossing and secured to said triangular portion, the lower end of said brace member having aneye connection with the side of said frame and at its upper end a detachable hook connection with the back frame.

MENNO H. DAVIS.

REFERENGES CITED The following references are of record in the file ofv this patent:

UNITED STATES PATENTS Number Name Date 1,049,080 Greene Dec. 31, 1912 1,270,738 Jones June 25, 1918 1,431,291 Dav-is Oct. 10, 1922 1,814,497 Thompson July 14, 1931