US2194810A - Scaffold - Google Patents

Description

March 26, 1940- A. REINER SCAFFOLD Filed June 20, 1939 2 Sheets-Sheet l Ennentor A50 16. AE/ML-W.

(Ittorneg March 26, 1940. N R 2,194,810

SCAFFOLD Filed June 20, 1939 2 Sheets-:Sheet 2 3nventor 150 A. FEM 5R.

Patented MarfZG, 19140 i UNITED STATES, PATENT- OFFICE 2 ,194,810 SOAFFOLD Leo A. Reiner, Detroit, Mich. Application June 20, 1939, Serial No. 280,146

5 Claims. (crew-2) This invention relates in general to scafiolds and tower structures.

One of the objects of my invention is to provide a new and improved tower or scafiold structure which will be strong and durable.

Another object of the invention is to provide a tower or scaffold structure which may be quickly and conveniently erected.

A further object of the invention is to provide a structure of the above mentioned character,

parts of which may be readily and quickly replaced if necessary.

Other objects of the invention will become apparent from the following description taken in connection with the accompanying drawings in which Figure 1 is a side view in elevation of my scaffold or tower structure; a

Fig. 2 is a view shown in cross section of the structure taken along the line-22 of Fig. 1;

Fig. 3 is a detail top plan view of part of the structure; I

Fig. 4 is a vertical elevational view of the structure of Fig. 3;

Fig. 5 is an end view of the structure;

Fig. 6 is a sectional view taken along the line 6-6 of Fig. 5, and

Fig. 7 is a sectional view taken along the line 'l! of Fig. 5.

'Referring to the drawings by characters of reference, the scafiold or tower structure includes a pair of spaced unitary end structures each of whichcomprises, spaced, upright posts l0, an intermediate upright post ll, horizontal upper and lower cross members l2 and corner members l3. To provide for strength and rigidity the posts H), H and cross members i 2 are tubular in shape and the intermediate post is preferably welded at its upper and lower ends respectively to the upper and lower tubular cross members l2.

The corner members I 3 may be cast and each comprises a vertical tubular portion provided intermediate its upper and lower ends with integral, rightangle tubular portions [4 and I6. As shown in Figs. 2 and 6, the comer pieces l3 telescopically receive end portions of the posts l and end portions of the cross members l2, the cross members l2 being received in the tubular portions l and the posts I 0 being received in the vertical tubular portions of the corner members l3. Preferably, the corner members I 3 are provided with internal shoulders, as shown, providing seats for the upper ends of the tubular posts and cross members, the lower ends of the posts being provided with external shoulders llib to seat on the upper ends of the lower corner members.

Angularly disposed tie rods ii, of which there are four, in the present instance, are provided for each end structure to rigidly secure the posts l0, cross members l2 and corner members l3 together. These tie rods I 5' are secured at their inner ends as at 18a, to an anchor member which comprises a pair of clamping plates H which are 10' bent to fit against the post H and are tightly drawn together and secured to the post II by bolts and nuts l8. Preferably the tie rods ii, at their outer ends, have threaded connections with individual turnbuckles 20 which are secured respectively to webs 2| formed integral of the corner members I3. It will be seen that by tightening down the turnbuckles that the corner members I3 will be urged toward each other and toward the common anchor plates I1, thus rigid- 2o ly securing together the parts of respective end sections. These end sections may be constructed at the factory and conveyed as unitary structures to the location where the scaffold or tower or similar structure is to be erected.

As shown in Fig. 1, the above described end sections are spaced apart by upper and lower horizontal cross members 22, similar to the cross members l2 and these upper and lower cross members have their opposite ends received in the other or tubular portions iii of the corner members. Tie rods 23 are connected, as at 21, to webs 24 of diagonal corner members l3 having threaded connections with turnbuckles 25 which may be readily tightened down to rigidly 5 secure the parts together. Preferably, the lower corner members I 3 have reduced lower end portions providing an external shoulder to seat on tubular bases or feet 26 to provide a more steady structure. 40 Mounted on the above described structure is a duplicate structure including lower corner members |3a which areprovided with lower end reduced portions 21a which telescope into the upper ends of the corner members l3a and have external shoulders 21b to seat thereon; the corner members I30 also having horizontal tubular portions Ha to receive end portions of tubular cross members I211. The end sections of the upper structures are provided with tie rods I lie to se-' cure the parts rigidly together. It will thus be seen that the structure may be added to and built up to the desired height to provide a strong scafiold or a tower for an elevator for building construction work. In order to provide a rigid 55 for tightly clamping the slotted tubular portions to their respective vertical posts. These clamping bands 32 have laterally extending spaced flanges 33 which are drawn together by bolts 34 and these bolts also secure the tie rods 28 and the turnbuckles 29 to the flanges. Thus by tightening down the turnbuckles 29 it will be seen that successive sections of the structure may be rigidly secured together.

It now instead of building the structure upwardly or if in addition to building upwardly it is desired to build outwardly or laterally it will be seen that additional end sections may be readily set up on the ground alongside of and adjacent to the other lower section or sections and all of the laterally positioned sections may be rigidly tied together by tie rods. To this end, I prefer to use the structure shown in Figs. 3 and 4 as this permits of the use of common posts 36 for adjacent end sections. The corner members I317 are each provided with a single right angle tubular portion Hb to receive ends of the horizontal cross members 22. Adjacent their upper and lower end, the tubular portions Nb are preferably slotted and these portions are tightly clamped around and to the posts ID by clamping brackets 31, drawn together by nuts and bolts 38. These nuts and bolts 38 also serve to secure ends of the tie rods 23 to the corner members l3b thus providing common posts between adjacent end sections of the structure.

To erect the structure, if the end sections are built up or assembled at the factory, it is only necessary to set up the end sections in spaced relation, insert the connecting cross members 22 in their respective sockets or tubu ar portions of the corner members l3 and attach and tighten the tie rods 23 by the turnbuckle 25. From the foregoing description it will now be seen that I have provided a new and improved scaffold or tower structure which may be quickly erected and one which is strong and rigid. In addition to the time saved in erecting the present scaffold or tower structure, the parts thereof may be very inexpensively manufactured. Furthermore by reason of its construction and manner in which the parts go together, any of the parts such as turnbuckles, tie rods, corner members, etc., may be readily replaced if necessary.

While I have shown and described my invention in detail it is to be understood that the same is to be limited only by the appended claims for many changes may be made without departing from the spirit and scope of the invention.

What I claim is:

1. In a structure of the character described, a pair of spaced upright tubuar posts, a pair of spaced tubular cross members connected to said posts, an intermediate upright post rigidly secured to said cross members, tubular corner members having sockets receiving end portions oi. said pair 01 posts and having other sockets receiving end portions of said cross members, an anchor plate rigidly secured to said intermediate post, and tie'rods individually securing said corner members to said anchor plate.

2. In a structure of the character described, upright tubular posts, upper and lower tubular cross members connected to said posts, corner members having sockets to receive end portions or said posts and having othersockets to receive end portions of respective cross members, angularly disposed tie rods urging said corner members toward each other and rigidly securing said corner members, posts and cross members together, and a centrally disposed anchor plate to which the inner ends of the tierods are secured.

3. In a structure of the character described, an upright tubular post, a tubular connecting member telescoping with an upper end portion or said post, a second tubular connecting member seating on and telescoping with said firstnamed connecting member, an upright tubular post telescoping with said second-named connecting member, clamping means for clamping said first-named connecting member and said first-named post together, second clamping means for clamping said second-named connecting member and said second-named post together, and means connecting said clamping means together and urging said connecting members toward each other.

4. In a structure of the character described, an upright tubular post, a tubular connecting member having one end telescoping with the upper end of said post, a second tubular member seating on and telescoping with the upper end of said first-named tubular connecting member, a second tubular post telescoping with the upper end of said second-named tubular connecting member, releasable 'clamping means tightly clamping said second-named connecting member to said second-named post, second releasable clamping means tightly clamping said first-named connecting member to said firstnamed post, and a turnbuckle connecting said clamping means and drawing said second-named connecting member down against said firstnamed connecting member.

5. In a structure of the character described, an upright tubular post, a tubular connecting member having one end telescoping with the upper end of said post, a second tubular connecting member seating on and telescoping with the upper end of said first-named connecting member, a second tubular post telescoping with the upper end of said second-named connecting member, releasable clamping means tightly clamping said second-named connecting member to said second-named post, second releasable clamping means tightly clamping said firstnamed connecting member to said first-named post, and means connecting said first-named clamping means and said second-named clamping means together and holding said secondnamed connecting member down against said first-named connecting member.

LEO A. REINER.

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