US2363837A - Wooden spring - Google Patents

Description

Nov. 28, 1944. 1., A. DAUGHERTY WO DEN SPRING Filed Jan. 29, 1943,

l with my invention. t Figure 2 is a view similarto Figure .1 showing the piece of wood after being cut in accordance Patented Nov. 28, 1944 3 .UNITED STATES PATENT OFFICE 1 i 2,363,837 WOODEN SPRING Lucius A. Daugherty, Norfolk, Va.

Application January 29, 1943, Serial No. 473,994 1Claim. (c1.5 255) This invention relates to a wooden spring, and

- hasfor the primary object the provision of a device of this character which will provide an efficient and economical substitute for a metallic spring and is especially suitablefor use in all types of furniture heretofore employing metallic springs and also maybe utilized for other purposes than that specified.

Another object of this invention is the provision of i a wooden springconstruction which may be substantially made from a single piece of wood 3 cut on lines of a pattern laid out on one face of the piece of wood and with the addition of wooden wedges will be made to have resiliency substantially equal to the resiliency of metallic springs used for like purposes. i

With these and other objectsin view, as will become more apparent as thedescription proceeds,

the invention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully de scribed and claimed.

For a complete understanding of my invenbers ,6 and l. The free ends of the members 6 and l are of an increased thickness to form rests 10, the rests ID of the upper member 6 being opposed to the rests lllof the lower member I. This construction of wooden spring will per.-

mit the grouping of a plurality ofsuch springs, L as shown in Figure 4, to form a bed spring construction or a spring foundation for chairs and other pieces of furniture. It will be noted in the grouping of the springs, as shown in Figure 4,

that groups of such springs parallel one another with their ends engaging other similarly constructed springs arranged at right angles thereto. A wooden spring of the construction described and shown in, Figure 3 can be economically and easily made from a single pieceof wood that is.

of elongated formation and of substantially rection, reference is to be had to the following del ,scription and accompanying drawing, in which Figure. 1 is .a side elevationillustrating a sin gle piece of wood having laid out on one face thereof a pattern on which said piece of wood is spring in accordance out in the formation of a pleted spring made in accordance with the present invention.

Figure 4 is a fragmentary perspective view i1- lustrating a series of springs made in accordance with the present invention grouped in the construction of a bed spring or some other similar cushioning device.

Referring in detail to the drawing, the numeral 3 5 indicates as'an entiretya wooden spring consisting of upper and lower members 6 and! arranged in parallel spaced relation and connected 4 .claim is:

tangular shape in cross section. Such a piece of wood is illustrated in Figure 1 and one face thereof has applied thereto line markings A in accordance with a selected pattern. .Thestrip of i wood is then cut on the line markings from both ends thereof, as shown in Figure2, forming the flexible strip as well as the upper and lower members of the spring. Afterthe pieceof wood has been cut,as shown in Figure 2, wooden wedges 9 are driven into'the kerfs or cuts and come to test where themembers and strips are joined with one another causing the members 6 and 1 and strips to assume a spread formation, as shown in Figure 3, thereby providing to the device a very desirable resiliency.

While Ihave shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction,

of the invention as claimed.

Having thus described my invention, what I In a wooden spring, spaced parallel wood members having the ends thereof enlarged to by a series of flexible strips 8 arranged in superimposed relation and integrally connected with each other and with said upper and lowerstrips or members 6 and I. The flexible strips 8 provide desirable cushioning effect between the upperand lower members 6 and 1 and by referring .to Figure 3 it will be seen that the flexible strips are spreadfrom each other and from the members 6 and 1 by' wedges 9. Also it will be noted -5 arranged inwardly of the free ends of the mem- 1 that the connected ends of the flexible strips are form rests projecting laterally thereof and they. rests of onememberppposing the rests of the other member, elongated flexible wooden strips groupedbetween said membersterminating longitudinallyinwardly of said rests and each having an end thereof integrally connected with the strip adjacent thereto and the strips adjacent said members being integrally connected with said members, and wedges located between the strips and between the members and the strips ad acent thereto, thewide ends of the wedges at the respective ends of the members terminating in acommon vertical plane.

LUCIUS A. DAUGHERTY. 1

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