US3380214A

US3380214A - Metal shingle support clip

Info

Publication number: US3380214A
Application number: US541556A
Authority: US
Inventors: Norman C Stevens
Original assignee: PERMA SHAKE Mfg CORP
Current assignee: PERMA SHAKE Mfg CORP
Priority date: 1966-04-11
Filing date: 1966-04-11
Publication date: 1968-04-30
Anticipated expiration: 1985-04-30

Description

April 1968 N. c. STEVENS 3,380,214

METAL SHINGLE SUPPORT CLIP Filed April 11, 1966 2 Sheeis-Sheet 1 INVENTOR. 34 NORMAN C. STEVENS A ril 30, 1968 N. c. STEVENS METAL SHINGLE SUPPORT CLIP 2 Sheets-Sheet 2 Filed April 11, 1966 NORMAN C. STEVENS United States Patent 3,380,214 METAL SHINGLE SUPPORT CLIP Norman C. Stevens, San Diego, Calif, assignor to Perma- Shake Manufacturing Corp., National City, Calif., a corporation of California Filed Apr. 11, 1966, Ser. No. 541,556 Claims. (Cl. 52-478) ABSTRACT OF THE DISCLOSURE This support clipfor shingle panels has as primary features the addition of means for snapping the clip into place on the roof purlins without requiring tools or bending of the clips, and means to support the overlaid shingle panels so that they may be walked on without damage, the latter means involving a vertical web portion on the clip with a tread flange on its upper edge to engage the undersurface of and to supporrt any shingle panel laid over the clip.

The present invention relates to roof structures and specifically to a metal shingle support clip.

One type of roof structure in present use utilizes metal shingle panels pressed to simulate wood shingles, each panel being large enough to represent several shingles to simplify assembly. The shingle panels have interfitting flanged edges to ensure Weatherproof joints and are applied over a frame of metal or wood, the shingles normally being secured by screw, clips, or other such means. Unless an excessive amount of framework is used the shingles are unsupported between their joints and will not withstand heavy pressure loads, such as that induced by a person walking on the roof.

The primary object of this invention, therefore, is to provide a clip which locks the shingle panels in place and also supports the shingles at any desired location.

Another object of this invention is to provide a shingle support clip which is applied and snapped into place by hand, making it possible to shingle an entire roof without tools, except for final trim.

Another object of this invention is to provide a shingle support clip which is easily fabricated from sheet metal and is sufliciently low in cost to permit its use in considerable quantity, so that overall support of a roof will permit walking on shingles of thin and light construction.

The clip and its use in roof structure are illustrated in the drawings, in which:

FIGURE 1 is a top plan view of a portion of roof structure, partially shingled;

FIGURE 2 is a perspective view of a typical shingle panel;

FIGURE 3 is a perspective view of my support clip;

FIGURE 4 is an enlarged sectional view taken on line 44 of FIGURE 1; and

FIGURE 5 is a further enlarged sectional view, similar to a portion of FIGURE 4, showing the method of applying the support clip.

Similar characters of reference indicate similar or identical elements and portions throughout the specification and throughout the views of the drawing.

The basic roof structure includes rafters 10, suitably inclined for run-off, with longitudinally disposed purlins 12 secured to the rafters in any suitable manner. Purlins 12 are metal channels open to the upward side of the roof and have upper supporrt flanges 14 on which the shingles rest.

Each shingle panel 16 has an elongated, rectangular surface panel 18 pressed to provide ridges and grooves simulating the grain of several shingles arranged in a row. One longitudinal edge of the panel has a downwardly turned perpendicular front wall 20 also pressed to simulate the exposed edges of shingles, the lower edge of the front 3,380,214 Patented Apr. 30, 1968 See wall having a rearwardly turned retaining flange 22. The other longitudinal edge of the panel has an upwardly return folded hook flange 24 forming a narrow retaining channel 26. While the specific characteristics of the shingle panel may vary somewhat, the basic flange arrangement will be as illustrated and cooperate with the support clips in assembly. Purlins 12 are spaced apart at a distance equal to the transverse width of the shingle panel 16, so that the interfitting edges of the overlapped rows of shingles fall on top of support flanges 14.

The support clip has a vertical web portion 32 of a length substantially equal to the spacing between purlins 12, and is tapered in height longitudinally to conform to the transverse cross section of the shingle panel 16. That is, the forward end 34 of web portion 32 has a height equal to the height of front wall 20 plus a dimension slightly less than the vertical height of a purlin 12, while the rear end 36 is reduced to a height slightly less than the height of a purlin. Forward end 34 has a notch 38 cut in from the end to leave a lower prong 40 with a horizontally inturned stabilizing tip 42 at the forward end. The prong 40 fits into the purlin below the support flange 14 and tip 42 prevents the support clip from rocking. Along the upper edge of Web portion 32 is a horizontal tread flange 44 which supports the surface panel 18 under load. A clearance is indicated between the surface panel and the tread flange, since the panel will not rest firmly on the tread flange due to the undulation of the ribs and grooves therein. Under load, however, the panel will only deflect a fraction of an inch before finding firm support on the clip. The forward end of tread flange 44 is turned downwardly to provide a locking flange 46, the lower edge of which is spaced above the prong 40.

At the rear end 36 of web portion 32 is a laterally turned stop 48 which fits closely against the purlin 12, the tread flange 44 having a rearward extension 50 which rests on top of support flange 14. The rear end of extension 50 is turned downwardly to form a bowed resilient locking tongue 52, which has a rearwardly flared lower tip 54 to facilitate snapping the tongue down over support flange 14 and lock the purlin between the locking tongue and stop 48. Extension 50 is reinforced by indented flutes 56 extending longitudinally into the tread flange 44 to spread the supporting loads of the clip resting on the purlin and prevent deformation of the extension.

With the purlins and rafters assembled to form the roof frame the roof is shingled by first applying a row of support clips along the lower or front edge of the roof. Each support clip 30 is inserted with its prong 40 under the support flange 14 of the front purlin 12, then the clip is pushed down at the rear to snap the tongue 52 over the support flange of the next purlin, with the support clip perpendicular between the purlins. A row of support clips are applied at suitable spacings to position one clip under each end of a shingle panel and two or three spaced under the surface panel. The shingle panels 16 are then placed in the first row by inserting the retaining flange 22 of each panel under the locking flanges 46 of the support clips and resting the rear edge of the panel on the tread flange extensions 50 over the next purlin. When the row of shingles is complete the next row of support clips 30 is added, staggered laterally from those in the first row. Each support clip is applied as indicated in broken line in FIGURE 5, with the clip raised at the rear to allow the locking flange 46 to be engaged in the retaining channel 26 of the shingle panel already applied. The support clip is then swung downwardly so that prong 40 passes under the purlin support flange 14 and tongue 52 is snapped down over the support flange of the next purlin, as in the full line position.

A further row of shingle panels are now applied by inserting the retaining flange 22 of each panel under the locking flanges 46 of the support clips and into the retaining channel 26 of the already applied shingle panel, as in FIGURE 4. The rear edge of the last applied shingle panel then rests on the extension 50 of the last applied support clips. Successive shingles are added by inserting support clips in each row then adding the shingles, as described above, until the roof is covered. All of this can be accomplished without tools, although if the locking tongues 52 are particularly tight fitting over the purlins a hammer or mallet may be used to seat the support clips.

In each row the shingle panels are interlocked with those in the next row by the flanges 22 fitting into the retaining channels 26, the connected edges being held firmly on the purlins by the locking action between the prongs 40 and locking flanges 46 straddling the purlin support flanges 14. The locking flanges 46 also extend in front of hook flanges 24, so that none of the structure can shift in any direction. With ridge caps and edge trim installed in a conventional manner, the roof is finished in a complete sealed unit.

Under load the shingles are supported by the purlins and support clips directly. With suitable spacing of the support clips, even thin light weight shingles will support a person walking anywhere on the roof.

It is understood that minor variation from the form of the invention disclosed herein may be made without departure from the spirit and scope of the invention, and that the specification and drawings are to be considered as merely illustrative rather than limiting.

I claim:

1. In a roof structure having transverse rafters, longitudinal purlins spaced from front to rear of the rafters, said purlins having rearwardly turned support flanges, a plurality of elongated shingle panels of a width substantially equal to the spacing between said purlins, each of said shingle panels having a rearwardly turned retaining flange below the forward edge thereof and a forwardly opening retaining channel above the rear edge thereof into which the retaining flange of an overlapping shingle panel interlocks, the front and rear edges of said shingle panels resting on said support flanges, the improvement of a plurality of support clips for the shingle panels, each support clip comprising:

a vertical web portion conforming in shape and extent substantially to the vertical space defined by the shingle and a pair of adjacent purlins and having a tread flange along the upper edge thereof engaging the lower surface of and supporting the respective shingle;

the forward end of said web portion having a prong extending under the support flange of one purlin, and a locking flange extending downwardly in front of the retaining channel portion of the shingle panel resting on that purlin;

the rear end of said support clip having a preformed resilient locking tongue frictionally engaging the support flange of the next rearwardly spaced purlin, with the support clip substantially perpendicular between purlins.

2. A support clip according to claim 1, wherein said prong has a horizontally extending stabilizing tip below the support flange of the purlin.

3. A support clip according to claim 1, wherein the forward end of said web portion has a notch above said prong to clear the purlin and the interlocked edges of the shingle panels, said locking flange extending downward in front of said notch.

4. A support clip according to claim 1, wherein said tread flange has an extension resting on the purlin support flange, said locking tongue being a downward continuation of said extension.

5. A support clip according to claim 4, wherein said extension has indented reinforcing flutes extending longitudinally into said tread flange.

References Cited UNITED STATES PATENTS 2,070,130 2/ 1937 Johnson 52-472 2,607,449 8/ 1952 Daniels 52-27 8 3,131,513 5/1964 G'rigas ct al 52551 3,320,709 5/ 1967 Schroter et al 52-478 3,339,333 9/1967 Kovalcik 52531 3,343,312 9/1967 Tischuk 5294 HENRY C. SUTHERLAND, Primary Examiner.