US2294279A - Box - Google Patents

Description

Augfzs 1942- R. cARNwATH l 2,294,279

BOX

Filed yMarch 50, .1940

Elije/Livr.- n

Patente-tl Aug. 25, 1942 BOX Robert Carnwath, Rydal, Pa., assignor to Pennsylvania Box and Lumber Co., Philadelphia, Pa., a corporation of Pennsylvania Application March 30, 1940, Serial No. 326,335

4 Claims.

My invention relates to boxes, and more particularly to boxes of the type used for packing and shipping, the walls whereof are constructed of thin veneer boards, ply wood, or fiber sheets, having marginal frames secured-thereto, and also having metallic reinforcing strips incorporated therein.

Various forms of boxes of the character aforesaid are in common use, none of which however are entirely satisfactory. Customarily the metallic reinforcing strips used extend through recesses cut in the side frame members, and the ends of said strips are bent around in various ways to secure them to the panel members. The metallic reinforcing strips used are usually relatively thick Which introduces diiculties in the securing of the same to the other members of the several walls of the box, and does not assist in preventing inward deflection of the panel portions of said walls. The recessing of the marginal reinforcing members not only involves additional labor in the construction of the lbox but also sets up weaknesses at points Where the utmost strength is required.

The principal object of the present invention is to provide a packing or shipping box, -of the character aforesaid, which will be simple and inexpensive in construction yet will be more durable than the boxes of this type at present in common use.

A further object of the invention is to provide a box, of the character aforesaid, in which the metallic reinforcing members are firmly and fixedly secured with`respect to the-other members and are so constructed, arranged and disposed as to afford the utmost reinforcement'at the required places.

The nature and lcharacteristic features of the invention will be more readily understood from the following description, taken in connection with the accompanying drawing forming part hereof, in which:

Figure 1 is a perspective view of a box embodying the main features of the present invention, portions thereof being broken away, better to illustrate the structure;

Fig. 2 is a transverse sectional detail View illustrating how one of the edge portions of the top wall unit is united to one of the side wall units of the box; and

Fig. 3 is a sectional detail view, taken on the line 3 3 of Fig. 2. l

It should of course be understood that the description and drawing herein are illustrative merely, and that various changes and modificafl l) tions may be made in the structure disclosed Without departing from the spirit of the invention.

Referring to the drawing, in the particular embodiment of the invention therein shown, the box comprises a top unit A, a bottom unit B, side units C, and end units D. Initially each of the wall units comprising the top, bottom, and sides of the box is a separate structure, the body portion 5 of which is made of veneer board, ply wood, ber or the like, strengthened by means of a marginal frame made of wooden strips 6 running longitudinally at the side edges, and transverse strips 'l at the end edges.

Intermediate the end members l' of the marginal frame transverse cleats 8, also made of wooden strips, are employed, one of these being shown on each of said Walls but it should of course be understood that where the box is of greater length than is shown in the drawing, a plurality of such intermediate cleats, suitably located, may be employed.

Metallic reinforcing strips 9, made of relatively thin metal, are interposed between the transverse cleats 8 and the main panel portion of the box wall at each place where said cleats 8 are positioned. These metal reinforcing strips 9 may be made of any suitable material, for example, that which is commonly known as tin plate, has been found quite suitable. The Strips S are of a Width slightly less than the width of the rcleats V8 beneath which said strips t are located, and these metal reinforcing strips 9 are also of a suflicient length to extend from side to side of the main panel members 5 extending under the side members 6 of the marginal frames.

The end units D are constructed in substantially the same manner as the top A and bottom B and side units C of the box, with the exception that ordinarily no intermediate cleats 8 Will be required in these units.

The marginal frame members S are secured to each other, and to the panel member 5, by means of staples I!) preferably driven through from the outside face. Likewise, the ends of the intermediate cleats 8 are secured to the side members 6 of the marginal frame and to the panel member 5 by means of similar staples lil. It should be noted that the staples li! which thus secure the end portions of the cleats 8 to the side members 6 of the frame also extend through the metallic reinforcing strips 9 which are disposed beneath the cleats 8.

The panel portion 5 of each of the wall units of the box is also secured to the frame members,

and to the intermediate cleat, by nails Il driven from the inner face through said members, said nails Il being clinched over on the outer faces of the wooden strips 6 comprising the frame members and the cleats 8. The head portions of the nails are thus disposed to secure the panel portions to the frames in the most efficient manner.

It will be noted that the nails l I which are used to secure the panel portion 5 of each of the wall units, where the intermediate cleats 8 are employed, also extend through said metallic reinforcing strips 9, whereby the utmost degree of reinforcement is obtained notwithstanding the thinness of the material used for such metallic reinforcing strips 9.

After the several wall units of the box are made as above described, the same are brought together and assembled in proper relationship to make the box, the same being nailed to each other by suitable nails l2 passing through the frame members of one wall portion to the frame members of the adjacent wall portions. It Will here be noted that nails I2 are preferably employed at the place where the metallic reinforcing strips 9 are disposed in the particular walls, which serve as an additional means for securing said reinforcement strips thereby to obtain the utmost efficiency in the use thereof.

The use of the relatively thin metallic reinforcing strips 9 permits the various staples and nails used in the making of the box to be driven therethrough without any preliminary perforation of said strips, thereby greatly reducing the cost of manufacture of the box. Also, by reason of the thinness of the metallic reinforcing strips used, it is not necessary to recess the marginal frame members where said strips pass between the same and the panel member.

It will also be noted that in the present arrangement, the panel members, the metallic reinforcing strips, and the transverse cleats, are yall secured to each other in such manner that the panel members will be securely held against inward deflection.

I claim:

1. A box made of a plurality of wall units each comprising a panel member of thin material, marginal frame members extending around the edges of said panel member, an intermediate cleat extending from one of the side marginal frame members to the other, a relatively thin and wide sheet metal reinforcing strip of high tensile strength disposed between said cleat and the panel member, said strip being of awidth approximately that of the intermediate cleat and having its end portions extending between the side marginal frame members and the panel member, and fastening devices extending through said members to secure them to each other, certain of said fastening devices passing through the reinforcing strip.

2. A box made of a plurality of wall units each comprising a panel member of thin material, marginal frame members extending around the edges of said panel member, an intermediate cleat extending from one of the side marginal frame members to the other, a relatively thin reinforcing strip of high tensile strength and of a width slightly less than that of the intermediate cleat disposed between said cleat and the panel member, said strip being nail penetrable and having its end portions extending between the side marginal frame members and the panel member, nails driven from the inside face extending through the panel member and frame members and cleat, certain of said nails also passing through the reinforcing strip.

3. A box ma-de of a plurality of wall units each comprising a panel member of thin material, marginal frame members extending around the edges of said panel member, an intermediate cleat extending from one of the side marginal frame members to the other, a relatively thin and wide sheet metal reinforcing strip disposed between said cleat and the panel member, said strip having its end portions extending between the side marginal frame members and the panel member, staples ydriven from the outside faces across the joint between the ends of the cleats and the side marginal frame members, said staples passing through the metallic reinforcing strips and through the panel member, nails driven from the inside face extending through the panel member and frame members and cleat, certain of said nails also passing through the metallic reinforcing strip.

4. A box made of a plurality of wall units each comprising a panel member of thin material, marginal frame members extending around the edges of said panel member, an intermediate cleat extending from one of the side marginal frame members to the other, a relatively thin and wide sheet metal reinforcing strip disposed between said cleat and the panel member, said strip being nail and staple penetrable and having its end portions extending between the side marginal frame members and the panel member, staples driven from the outside faces across the joint between the ends of the cleats and the side marginal frame members, said staples passing through the metallic reinforcing strips and through the panel member, nails driven from the inside face extending through the panel member and frame members and cleat, certain of said nails also passing through the metallic reinforcing strips; and nails for securing the wall units to each other, certain of said nails also passing through the metallic reinforcing strips.

ROBERT CARNWATH.

Images