US2204818A

US2204818A - Panel construction

Info

Publication number: US2204818A
Application number: US286746A
Authority: US
Inventors: Obermayr Rudolph
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-07-27
Filing date: 1939-07-27
Publication date: 1940-06-18
Anticipated expiration: 1957-06-18

Description

June 18, 1940. QBERMAYR 2,204,818

PANEL CONSTRUCTION Filed July 27, 1939 INVENTOR RUDOLPH OBERMA YR ATTO R N EY I Various metal panel constructions are in exeach of the inwardly extending flanges'is illus-eb 5 a panel construction from two metal sheets firmthe numeral 11. The next section extends out-5:

n vide a panel construction from metal strips havto the section l8, to a point substantially in line' l20 '30 out departing from the spirit andscope of the 0f the extensions is composed of three sections,

Patented June 18, 1940 2,204,818

UNITED STATES PATENT OFFECE PANEL CONSTRUCTION Rudolph Obermayr, Astoria, Y. Application July 27, 1939, Serial No. 286,746

9 Claims. (01. 189-34) This invention relates in general to panel condouble grip on each of the flanges and thus struction and more especially to a metal panel avoids lateral shifting of the metal sheets l2 construction of superior rigidity adapted for and I3 when the panel unit is completed and inmany uses. stalled. One advantageous manner of shaping tended use as doors, wall partitions, hospital trated in Figure 2, although it will be understood cubicles, metal furniture, cabinets and the like. that other shapes may be employed for accom- In the manufacture of such panel constructions, plishing the same purpose of my invention. it is essential to have the metal sheets firmly As illustrated, each of the flanges l4 and I5 is 10 held or locked together. bent at three points so as to provide three sec- 10 It is an object of my invention to provide a tions in each flange extending in three different panel from two metal sheets firmly held together directions. The first section of each flange isat by their edges by a locking strip. a right angle, or at an approximate right angle, It is another object of my invention to provide to the metal sheets l2 and I3 as indicated by 1y held together by a locking strip adapted to wardly from the section II, as indicated by the grip or look the edges of said sheets at a plurality numeral 18, and each flange extremity 19, which of points. is the last of the three sections on each flange,

Still another object of my invention is to proextends inwardly at approximately a right angle ing their edges shaped to engage or grip a lockwith the right angle section I].

ing strip at least at twopoints. The molding or looking strip I6 is adapted to With these and other objects in view, which firmly engage or grip the inwardly extending may be incident to my improvements, the invenflanges l4 and I5 at two points on each flange,

25 tion consists in the parts and combinations to and thus provide a rigid assembly. The strip'725 be hereinafter set forth and claimed, with the IB, of which there are four in number, to cover understanding that the several necessary elethe edges of the panel, have an arched or curved ments comprising my invention may be varied in outer surface 20 and a pair of extensions adapted construction, proportions and arrangement withto resiliently engage the flanges: I4 and 15. Each appended claims. the first section 2| being formed by bending the I have shown in the accompanying drawing, metal inwardly and parallel to the curved surface means for putting my invention into practical 2D. In forming the sections 2|, which extend effect without limiting the improvements in their inwardly to contact each other or at most with usefulapplication to the particular constructions, a relatively small space between them, it is im- 35 which for the purpose of explanation, have been portant in order to secure the desired engaging made the subject of illustration. or gripping action, to have at least that part of In the drawing, the section 2i contacting the section 18 parallel Figure 1 shows a perspective view of a comto the section l8, as shown in Figure 2. 4, pleted panel embodying my invention. The next sections 22 of the extensions project 40 Figure 2 is an enlarged sectional View of a p01- away from the curved surface 20 and preferably tion of one end of the panel. form a triangular shaped space betweenthe sec- Referring now to the drawing, a metal panel 'tions 22, the purpose of which will be later exil is formed. by marginally flanged metal sheets plained. The extremity section 23 of each exten- I2 and I3. The metal sheets l2 and iii are prosion is bent inwardly towards the curved surface 45 vided, respectively, with inwardly extending 2i and is sloped in such a manner as to be parflanges I4 and I5 shaped to engage a molding or allel to the section IQ of the flanges l4 and I5. locking strip It. It is preferred to make the Byarranging the sections 23 substantially parflanges I4 and I5 integral with the metal sheets allel to the sections 59 another point wherein the which are originally stamped out in flat condilocking strip engages or grips the flanges of the "50 tion and thereafter bent at their edges to form metal strips is: thus provided. the flanges. The molding or looking strip I6 is somewhat The inwardly extending flanges l4 and 15 are resilient to firmly hold: the metal strips together shaped to be engaged by the locking strip IS in under a resilient tension. I have shown the such a manner that the locking strip exerts a strips I 6 as being narrower than the thickness 55 of the finished panels to enable the ends thereof to firmly seat themselves in the juncture between the sections I! and I8. In this manner the resilient properties of the strip l6 enables it to firmly grip the flanges of the metal sheets. The space between the sections 22 provides a restricted area for inward movement of the extremity sections 23 to enable a firm grip on the sections l9 and at the same time brings the parallel sections I8 and 2| in firm engagement with each other.

It will thus be apparent that when the molding or looking strip l6 has been joined to the metal sheets l2 and I3 there is provided a double gripping or looking action between the strip and flanges. One of the grips is effected between the parallel sections l8 and 2| and the other between the parallel sections I9 and 23. In this manner the metal sheets are firmly locked together and the possibility of lateral shifting thereof is avoided.

While I have shown the molding strip l6 as being narrower than the panel, it will be understood that it maybe of the same order of thickness as the panel. Moreover, while the sections 22 are shown as forming a triangular space between them, it is not essential that such a space be provided as the double grip locking arrangement can also be accomplished with these sections somewhat parallel to each other. The space between the metal strips may be filled with a suitable sound-deadening filling material 24, such as cardboard, fibre or the like.

While I have shown and described the preferred embodiment of my invention, I wish it to be understood that I do not confine myself to the precise details of construction herein set forth, by way of illustration, as it is apparent that many changes and variations may be made therein without departing from the spirit of the invention or extending the scope of the appended claims.

I claim:

1. A panel construction comprising a pair of metal sheets having inwardly extending flanges,

each of said flanges having a section extending at substantially a right angle to each sheet, another section inclined outwardly from the first-mentioned section and a third section inclined inwardly from the second-mentioned section towards the center of the panel and means for interlocking in a tension grip the second and thirdmentioned sections of said flanges to hold said metal sheets together under tension.

2. A panel construction comprising a pair of metal sheets having inwardly extending flanges, each of said flanges having a section extending at substantially a right angle to each sheet, another section inclined outwardly from the firstmentioned section and a third section inclined inwardly from the second-mentioned section towards the center of the panel and a molding strip for holding said pair of sheets together under tension, said molding strip having a curved outer surface and two separate sections adapted to firmly engage in a tension grip the secondand third-mentioned sections of each of said flanges.

3. A panel construction comprising a pair of metal sheets having inwardly extending flanges,

each of said flanges having a section extending at substantially a right angle to each sheet, another section inclined outwardly from the firstmentioned section and a third section inclined inwardly from the second-mentioned section towards the center of the panel and a molding strip for holding said pair of sheets together, said molding strip having a curved outer surface, a section at each end bent substantially parallel to said curved surface, another section extending away from each of said parallel sections and a third section extending from each of said sec- 0nd sections toward said parallel sections, the

flrstand third-mentioned sections of said molding strip being adapted to firmly engage, respectively, the secondand third-mentioned sections of each of said flanges.

4. A metal construction comprising a pair of metal sheets having inwardly extending flanges, each of said flanges having two flat surfaces extending in different directions and means adapted to firmly press against each of the two flat surfaces on each of said flanges in a direction to hold said pair of sheets together under tension.

5. A metal panel construction comprising a pair of metal sheets having inwardly extending flanges, each of said flanges having two extending surfaces projecting in different directions and means adapted to firmly press against each of the two extended surfaces on each of said flanges in a direction to hold said pair of sheets together in a double grip under tension.

6. A panel construction comprising a pair of sheets having inwardly extending flanges, each of said flanges having sections thereof providing" flat surfaces, and means having at least two points adapted to press against each of the two surfaces on each of said flanges in a direction to hold said pair of sheets together under tension 8. A panel construction comprising a pair of metal sheets having inwardly extending flanges, each of said flanges having a section extending at substantially a right angle to each sheet, another section inclined outwardly from the firstmentioned section and a third section inclined inwardly from the second-mentioned section toward the center of the panel, and means having sections adapted to engage in a tension grip the second and third sections of said flanges to hold said pair of sheets together under tension.

9. A metal panel construction comprising a pair of metal sheets having inwardly extending flanges, each of said flanges having two extended surfaces projecting in different directions, and

means having two extended surfaces adapted to press against each of the two surfaces of said flanges in a direction to hold said pair of sheets together in a double grip under tension.

RUDOLPH OBERMAYR.