US2125830A - Scaffold bracket - Google Patents

Description

vAug. 2, 1938. I R. A. UECKER ET AL 2,125,830

SCAFFOLD BRACKET Filed Aug. 9, 195 3 Sheets-Sheet 1' g ww ATTORNEY.

Patented Aug. 2, 1938 ATENT OFFICE SCAFFOLD BRACKET vlteinlimiid AaUecher, ingar 'G. Rambo, and David E. Beatty, Wauwatosa, Wia, assignors to The Safway Steel Scaflold Co. of America, Wilmingtou, Met, a corporation of Delaware Application August 9,

6 Claims.

This invention relates to scafiolds and more particularly to brackets adapted to support planking on the exterior of a scaifold.

In order to make a scaffold rigid it is the usual practice to have a rectangular framework with members in a vertical plane on all four sides.

Such a construction while satisfactory toworkers 7 on top of the scafiold is extremely awkward to a person working below the top of the scaffold.

One object of the present invention is, therefore, to devise a structure which will support scaffold planking on the exterior of a rectangular tower scaffold to enable the workers to work free of the encumbrances of the scaffold bracing.

A second object of the invention is to produce a bracket which may be attached to a tower scaffold at various elevations to support planking on the exterior of the scaffold.

Another object is to produce a bracket which may be used on the ends of the scaffold.

A further object of the invention is to improve the attaching means for scaffold brackets.

These and other objects, the nature of which will beapparent as the description progresses, are

accomplished by means of the preferred forms of the invention shown on the drawings and described in the specification.

Inthe drawings:

Fig. 1 is a perspective view of a scaffold of the type shown and described in the United States patent to Reinhold A. Uecker, Number 2,043,498,

issued June 9, 1936, showing the brackets, forming the subject matter of the present invention, attached thereto;

Fig. 2 is an enlarged side elevation of; a side bracket;

Figs. 3, 4 and 5 are cross-sections on the lines 3-3, 44 and 5-5, respectively, of Fig. 2 looking in the direction of the arrows;

Fig. 6 is a side elevation of an end bracket made in accordance with the present invention;

Fig. '7 is an end elevation of the bracket shown in Fig". 6, looking from the left in Fig. 6;

Fig.8 is a cross-section on the line 8-8 of Fig. 6 looking in the direction of the arrows;

Fig. 9 is a side elevational view of a scaffold with a modified form of end bracket attached thereto; and

Fig. 101s an end view of the scaffold shown in Fig. 9 with the end bracket attached thereto.

Referring to the drawings, in which like numerals indicate like parts throughout the several views, the scaffold, which is of the type shown in the aforesaid Uecker patent, and which is best shown in Fig. 1, comprises a first pair of end 1937,, Serial No. 158,106 (or 304-2) frames ifi-ii) which are held spaced from each other by a pair'of cross braces iI-i i. A second pair of end frames i2 i 2 are superimposed on the end frames iiliil and are held alined with the latter by four coupling pins II. A second pair of cross braces l5-i5 hold the end frames i2-i2 in spaced upright position. I

Each end frame III-i0 and. i2-l2 is made substantially rectangular and comprises vertical posts Iii-I6 joined by horizontal braces ll-ll. One of the horizontal braces l'l connects the posts it adjacent the top while the other brace I'I connects the posts It at approximately the one third point on the posts.

Stifieners |8-l8 join the horizontal braces i'l to make the frames Ill-l2 rigid. Three types of brackets are shown. The first type to be described is termed a side bracket as it fits on the side of the scaffold and lies substantially in the same plane asthe end frame ill or l2. The side bracket is shown best in Figs. 2, 3, 4 and 5, and comprises atriangular frame 20, which is connected to a horizontal brace I! of the end frame II) or l2 by a connecting fixture 2|, and held in alinement with the frame by asupport 22, so shaped as to guide the bracket into position on the post i6.

Theframes 20 may be made of two pieces, a tubing bent to form avertical leg 23 and adiagonal leg 24, and a second tubing 26 which forms a horizontal leg and joins the twolegs 23 and 24. The tubing 26 may project beyond theleg 24. It terminates in a bent-up toe 21, the purpose of which is to retain the planking on the bracket.

The bracket is attached to the end frame II) or i2 by means of an attaching fixture 2|. Thefixture 20 is made from a gusset plate which is welded to thevertical leg 23 of thebracket 20, as shown at 32, and extends in a plane substantially parallel to the plane of thebracket 20. The upper end of the gusset is bent across the plane of the bracket on a radius sufllcient to fit over the horizontal' brace ll of the scaffold to form ahook 34 as best shown in Fig. 3. l The lower end of the gusset is provided with aheel 35 which is bent in, as shown in Figs. 3 and 4, to engage the vertical post it of the scaifold and prevent the upper end of the bracket from disengaging from the scaffold. Sufiicient clearance is left between theheel 35 and, thehook 34 to permit the insertion of the bracket over the brace l'l.

The lower end of the bracket is held in engagement with the post It by the guidingsupport 22 which may be shaped to fit the post It and welded onto the lower end of theleg 23.

Figs. 6, 7 and 8 show anend bracket 38 the triangular frame of which is similar to thebracket 20 in Figs. 2 to 5 inclusive. Thebracket 38 haslegs 39, 40 and 4| which are similar tolegs 23, 24 and 26 respectively, of theframe 20. An attaching fixture orgusset 43 is fixed onto theleg 39 substantially at right angles to theleg 4| and is bent back away from the frame in a semicircle of sufficiently large radius to fit over a brace I! of the scaffold end frame In or I2 and support the bracket from the brace I1.

Thefixture 43 fits over the brace ll adjacent the post ii. As will be seen most clearly in Fig. 7, this construction necessitates the post lying outside the plane of the bracket. A guidingsupport 45 is formed on the lower end of theframe 38 to support the lower end of the bracket from the post IS. Thesupport 45 is made toextend outwardly from theleg 39 of the frame 38 a sufficient distance to partly envelope the post l6. By having thesupport 45 extend outwardly from both sides of theleg 39, one bracket can be used for both sides of the end frame III or l2. This is mostly clearly illustrated in Fig. 1. Braces 46 reinforce the guidingsupports 45 to give a more rigid structure.

A third type of bracket, used principally where a slightly wider bracket is required, is illustrated in Figs. 9 and 10.

Referring to Figs. 9 and 10 the bracket is shown as made of a vertical leg 50, a diagonal leg 5| and ahorizontal leg 52. Atubular support 53 joins the legs 5| and 52 and forms a receptacle to receive a guard post 55.

The upper support for the bracket is formed from a semi-circular fixture orhook 56 which is similar to thefixture 43 of Fig. 6. The lower or guidingsupport 59 is formed from a semicircular strip which is attached to the lower end of the diagonal leg 5| and engages over a lower horizontal scaffold brace IT.

Achain 51 joins the posts andsimilar posts 58 on the top of the scaffold, as shown.

Having thus described the invention it will be realized that it is susceptible to various changes and modifications and it is not therefore, desired to limit the invention to the precise forms herein shown and described, but only by the scope of the appended claims.

What is claimed as new and desired to secure by Letters Patent is:

1. In a scaffold having a vertical post and a horizontal. brace, a supporting bracket comprising, a frame, an attaching bracket fixed on the upper end of said frame, means on said attaching bracket engageable over said horizontal brac to support said frame from the brace with the upper end of the frame longitudinally alined with the brace and means on the lower end of said frame engageable with said post to maintain the lower end of the bracket in position on said scaffold.

2. In a scaffold having a vertical post and a horizontal brace, a supporting bracket comprising, a frame, an attaching bracket fixed on the I upper end of said frame, a hook formed on the attaching bracket and extending laterally and engageable over the horizontal brace to support the frame from the brace with the upper end of the frame in substantially longitudinal alignment with said brace, and means on the lower end of said frame engageable with said post to prevent lateral movement of that end of the frame.

3. In a scaffold having a vertical post and a horizontal brace, a supporting bracket comprising, a frame, an attaching bracket fixed to the upper end of said frame, means on said attaching bracket engageable over said horizontal brace to support the frame from the brace with the upper end of the frame in approximate longitudinal alignment with said brace, means on said attaching bracket engageable with the post to prevent accidental disengagement of the overhang bracket from the scaffold, and means on the lower end of said frame'engageable with said post to maintain that end of the frame in position on the scaffold.

4. In a scaffold having-a vertical post and a horizontal brace, a supporting bracket comprising, a frame, an attaching bracket fixed to the upper end of said frame, a hook member formed on said attaching bracket extending laterally therefrom and engageable over the horizontal brace to support the frame from the brace, and a rearwardly opening channel shaped member fixed on the lower end of said frame engageable with a post thereby maintaining the frame in the general plane of the post and the brace.

5. In a scaffold having a horizontal brace and a vertical post, a supporting bracket comprising, a triangular frame including a vertical member, a horizontal member and a diagonal member, a supporting bracket fixed to said frame at the junction of the horizontal and vertical members and extending rearwardly in substantially the plane of the frame, a hook formed on one end of said bracket and engageable over the horizontal brace to support the frame therefrom with the horizontal member substantially aligned with the brace, and means on the vertical brace adjacent its juncture with the diagonal brace engageable with the post to maintain that end of the frame in position on the scaffold.

6. In a scaffold having a horizontal brace and a vertical post, a supporting bracket comprisin a triangular frame having a vertical member, a horizontal member and a diagonal member, an attaching bracket fixed to the upper end of said frame adjacent the junction of the horizontal and vertical members, a hook formed on said attaching bracket engageable over said horizontal brace to support the frame from the brace with the horizontal member thereof substantially aligned with the brace, means formed on said attaching bracket below said hook engageable with said post below said brace to prevent accidental disengagement of the supporting bracket, and means on the lower end of said frame engageable with the post to maintain the lower end of the frame in position on the scaffold.

REINHOLD A. UECKER.

INGAR G. RAMBO. DAVID E. BEATI'Y.

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