US1870708A - Corner joint for metal beds - Google Patents

Description

Aug. Q, 1932. J. T. BROTHERS 1,87,708

CORNER JOINT FOR METAL BEDS Filed May 5 1926 Patented Aug. 9, 1932 UNITED sTA'rEs PArsNr JOHN TEE'IER BROTHERS, OF BIRMINGHAM, ALABAMA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO. HENRY B. FLOYD, OF CHICAGO, ILLINOIS comma JOINT FOR METAL BEDS Application filed May 3, 1926. Serial No. 106,325.

My invention relates to corner joints for beds and has for its object to provide a joint which can be cheaply constructed and which will afiord the maximum bracing against both lateral and vertical strains.

My invention contemplates the use of the joint in connection with any suitable type of corner posts and side bars, but is illustrated in connection with the customary round metal post and the angle irons forming the side rails of the bed. The joint proper comprises an angle plate for attachment to the post which is provided with a taper slot adapted to receive a wedge plate on the rail, the wedge being preferably attached to the vertical side of the rail and offset from its ends sufliciently to enable the end of the rail to take its bearing against one-flange of the post angle while its wedge takes its bearing in and overhangs the side walls of the slot in the other flange of the post angle.

A further distinctive feature is arranging the slot in the post angle flange so as to leave sufficient metal in that flange lying in the plane of the wedge to form a strong brace against angular strains in a vertical plane.

A further object is to increase the strength of the joint by providing the rail at each end with headed rivets spaced to receive between them and to overhang the inside end of the slotted flange of the post angle and preferably to overhang same on each side, the wedge and the rivets being all set so that a three point bearing is provided which will greatly strengthen the joint.

A further object of my invention is to adapt the headed rivets to overhang the side flange of the post angle so as to afford increased strength against lateral strain.

A further object is to adapt the wedge to permit the side rail to be reversed by inverting it, and in order to insure the wedge taking its hearing at the proper point against the corner post angle the bearing edge of the elongated wedge is cut away except at its extreme ends, thus insuring the maximum leverage resistance to vertical cocking strains on the joint.

My invention further comprises the novel details of construction and arrangements of parts, which are illustrated in the accompanying drawing which forms a part of this specification, and in which Fig. 1 is a plan view of my improved corner joint with the side rail shown in plan broken away and one corner post shown in section.

Fig. 2 is a side elevation of Fig. 1.

Fig. 3 is adetail View of the corner post angle mounted on the post.

Similar reference numerals referto similar parts throughout the drawing.

In the embodiment of my invention which is illustrated, I show conventionally a corner post 1 of a metalbed and to this post is attached an angle having a flange 2, shaped to conform to the post and adapted to be attached thereto by a plurality of attaching elements 3, such as rivets, bolts, etc. The other flange 4 of this angle is provided with a taper slot 5 opening through its upper edge dividing the flange into an outer taper tongue 6 and an inner portion 7 which is left wide enough to provide enough metal to withstand the strains thereon from the wedge hereinafter described. The tongue 6 has its edge 16 toward the post 1 tapered while the portion 7 has a straight edge 19 which rises above the top level of the tongue 6.

I illustrate the side rail 8 of the bed conventionally as formed of an angle iron having a horizontal flange 9 and a vertical flange 10, the flange 9 having its ends notched or cut away as at 11 to engage the post angle flange 2 on both sides of the rivets 3 and take a firm bearing against this flange. The vertical flange 10 at each end is provided with a double wedge 12 which is attached to the flange 10 preferably by means of a headed rivet 13, the head of the rivet being adapted to overhang the wedge on each side and the body of the rivet being adapted to fit snugly between the edges 16 and 19 at the upper end of the slot5 in the post angle flange 4. Spaced inwardly from each headed rivet 13 is a second or smaller headed rivet 14 having its body portion spaced from that'of the ad jacent rivet 13 sufficiently to receive snugly between them the upper end of the tongue 6 on the post angle. .The wedge hasreversely @FFICE v tapering faces 15 and 18, one or the other of which is adapted to co-act with the wedge face 16 of the tongue 6, these faces 15 and 18 being symmetrical with respect to the side rail and the rivet 13. The other edge of the wedge 12 is notched at 17 so as to leave at its ends bearing faces lying in a common vertical plane and adapted to engage the slot edge 19. i

In assembling the joint, having mounted the angle 1 on the corner post 1 and having applied the wedges 12 and the rivets 13 and 14 to each end of the side rail 8, the joint is assembled by inserting; the wedges 12 in.

the slot 5 until contact is established at the following points: the tongue 6 and flange 7 will engage-under the heads of-the rivets 13 and 14; the tongued will fit snugly between the shanks of the rivets 13 and 14; the face 15 or 18 of the wedge 12 will take its bearing against the taper" edge 16 of the tongue 6; the upper and lower ends of the wedge willbear against "the" edge 19 of the flange portion 7 and the forked ends of the rail flange 9 will take their bearing against the sides of the post angle flange 2. These several engagements between the co-acting elements ofthe corner joint will all take effect simultaneously and will afford the maximum strength to resist cocking strains both vertically and horizontally and yet the joint elements are extremely simple in construction, inexpensive and very simply applied and operated. It is desirable to use double wedges 12 which are symmetrical with respect to their mounting rivets 13, so that the side rails can be reversed and inverted accordin to whether slats or box springs are to be used.

' Though I have described with great particularity the details of 'the embodiment of the invention herein shown, it is not to be construed that I am limited thereto, as changes in arrangement and substitution of equivalents may be made by those skilled in member and having a wedge adapted to take a bearing in the slot of said latter flange.

2. A corner joint according to claim 1, in which one of the button rivets is adapted to mount the wedge on the rail and to overhang said wedge on each side for the purposes described.

- 3. A corner joint according to claim 1, in which said button rivets have their shanks spacedto snugly engage the tongue of the and a taper tongue substantially shorter than.

the post member, a double wedgle'mounted symmetrically on the flange of the mil and adapted to have one end received in the slot of the bed element and at both ends to engage the straight bearing edge of said slot both above and below the side. rail,and buttonheaded rivets on the side rail, one serving to mount said wedge on the rail and ada ted to overhang the side walls of the s 0t and the other spaced to snugly receive the upper edge of the tongue between it'and the wedge.

In testimony whereof, I aflix my signature.

JOHN TEETER BROTHERS.

the .art without departing from the invention as defined in the appended claims.

Having thus described my invention, what I I claim as new and desire to secure by Letf ters Patent, is V 1. A corner joint for metal beds having corner posts and angled side rails, comprising an angled post member provided with one flange adapted for attachment to the post and another flange provided with a vertical slot spaced from the point of junction 7 of said flanges and shaped to provide a straight'vertical edge adjacent the junction and an upwardly tapering tongue having an inner edge downwardly inclined toward the 7 ing button rivets on its vertical flange adapted to overlap said slotted flange on said post i

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