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Publication numberUS2349907 A
Publication typeGrant
Publication dateMay 30, 1944
Filing dateJul 9, 1941
Priority dateJul 9, 1941
Publication numberUS 2349907 A, US 2349907A, US-A-2349907, US2349907 A, US2349907A
InventorsGlendon T Gerlach, Alfred S Kos, Altman Peter
Original AssigneeCons Vultee Aircraft Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Metal door
US 2349907 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

May 30, 1944.

A. 5. K05 ET'AL METAL DOOR Filed July 9, 1941 2 Sheets-Sheet l May 30, 1944. A. 5. ms EI'AL METAL noon F iled July 9, 1941 2 Sh eets-Sheet 2 fivenfoks red 61 ffos Patented May 1944 signments, to Consolidated Vnltec Aircraft Corporation, a corporation of Delaware ApplicationJJuly 9, 1941, Serial No. 401,614

The inventionrelates to metal doors. H One object .of the invention is to provide a metal door which -has. a high-strength-weight ratio'for use in vehicles'such as airplanes or automobiie's.

One object of the invention is to provide a door which is light in weight, durable and possesses the desired degree of stiifness for use in vehicles. Other obfects of the invention will appear from the detailed description.

The invention consists in the several novelfeatures which are hereinafter set 'fbrth and are more particularly defined by claims at the conclusion' hereof.

In the drawings: Fig. '1 is a perspective of a' door embodying the invention. Fig, 2 ls a perspective illustrating a portion of the composite metal panel in the door and the diagonal stiffening member in the panel. perspective taken on line 33 of Fig. 1. Fig. 4 is a sectional perspective taken" on line 4-4 of i Fig. 1. Fig. 5 is a perspective taken on line 5-5 of Fig. 1. Fig. 6 is a section across the beamstructure in the lower panel.

The invention is exemplified in a door which panel 9 for holding a glass window in any usual manner, and is provided with hinge-members 8 whereby the door may be supported in the frame of a vehicle. The lower panel comprises asheet III of metal, such as thins-teal, which forms the smooth outer face on the door. The lower panel also comprises diamond-mesh expanded metal I I, which extends over substantially the entire inner face of the sheet I. .fllhe expanded metalis originally formed with the faces of the bonds extending nearly at right angles to the faces of the strands. This expanded metal is flattenedso planar. --The flattened expanded metal and'the sheet Iii are bonded together as for example by 11 Claims. (01. lee-'46) I Each flange I8 is spot-welded to the flange .20 and the margin of sheet l0. Each of the strips i4. IS, IS and I1 comprises a transverse inwardly extending flange 22, an inner side-flange '22, and an inturned transverse flange 24 which form a boxing around the margin of the lower' panel.

The strips l5 and I6 are extended above the strip 11 to form the sides, of the window panel and their upper ends are rigidly connected by a strip 26. An extension ID of the sheet l0 extends over,the' outer face of the strips l5 and I6 above strip I1 and the strip 26. Strip 26 and strips I5 and I6 above strip I! each have a pair of flanges 21 lapped by the extension ID or sheet I II. and. flanges forming a closed boxing 2-8, as illustrated in Fig. 4. The boxing 28 on strips i5 and I6 may each be formed of acontinuation of the flanges i8, 22 and 23; the extension of Fig. 3 is a sectional comprises a lower'closed panel 9 and an upper flan e 24 to the sheet Ill and added outturned flange2l. L

The lowermost panel is usually subjected to transverse and other loads and it is desirable to provide means forpreventing the bending or warping of the door during use. For this purpose a diagonal row between theupper corner of the'panel at the pivoted side of the door to the lower corner at the free side of one series of bonds and adjacent strands of the expanded metal are deflected or' arched away from the the faces of the bonds and strands will be 00- a spot-welding preferably ,across the bonds l2 between the diagonal strands IQ of the flattened ex- I pended metal. The margin of the sheet ll pro-I jects beyond the margins of the expanded metal, 7

as shown in Figs. 3 and 5. The border of the lower panel is formed by a sheet-metal bottom strip 7 l4, upright side-strips l5 and Ii, and an upper strip II. Each ot these strips is box-like in crosssection and comprisesa flange i8 fltting against the inner face of the sheet Il, the margin of which is folded-or lapped around theo'uter edge of flangelt, as at 20. to secure the strips around ,the margin of the sheet II and to form an abuttrode.

sheet In, as at 36, so that the bonds l2 will be,

spaced from the sheet. A diagonal channel-strip 31 has a flange 31 which flts on the bonds l2.

and flanges 38 which flt along the adjacent angular portions of the strands and is spot-welded as at l2 to all of the bonds I29 in the diagonal row. The ends of the flange 31- of strip 31 are extended to overlap t e flanges 22 of theborderstrips and welded thereto at 39. The strip is bent to conform to the plane of the sheet l0.

These arched portions of the expanded metal and the strip 31, when welded together as described, form a diagonal beam for stiflenlng the panel and preventing flexing thereof. This also functions toprevent diaphragming of the door when it is in use. The expanded metal is arched and the strip 11 is welded thereto. before the expanded metal is welded'tothe sheet It so that the bonds l2 of expanded metal and the strip 31 willbe accessible to the electrodes for spot-welding. This is done by inverting the strip 31 and placingits outer face on the lower electrode with the-arches between the flanges 31 so the inner faces of the bonds l2- will ment on the door for engaging the door-frame. 66- The marginal portionsot expanded metal ll be accessible to the'upper elecare not bonded to the sheet III, are bent obliquely away from the sheet II), as at 30, and have substantially right-angled terminals 3| which fit against the inner faces of the flanges 22 of strips I4, l5, l6 and I1 and are spot-welded thereto,

as at 32, to reinforceand stiffen the border of the door. Usually the lower panels of'the doors are somewhat bulged orfcurved'to conform to the vehicle body. In fabricating the door the expanded metal may be formed to the desired curve before the sheet 40 is bonded thereto, or the composite panel -of sheet and expanded metalmay be formed to the desired curve if bonded after flattening, and in either case retain its curved contour. The side strips l5 and I6 and the bottom and top strips f4 and II are also curved according to the curvature and contour of the door-frame.

Strip 3! extends across the short axis of the I diamond-shaped spaces in the expanded metal to stiffen the panel against stresses in the weakest direction of the expanded metal. The expanded metal is arranged so the long axes of the diamonds, which provide the greater transverse strength, extend diagonally, as nearly as practically possible, between the lower inner corner and the upper outer corner of the panel 9 and this provides sufllcient diagonal strength between "those comers to render an additional beamening means whichconsists of arches in' the eil'ective X-bracing for.

thin metal sheet, flattened diamond-mesh ex- .panded metal bonded to the inner face of the expanded metal. and a connecting strip bonded to the arches and secured to the border-strips of the door.

The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what we secure by Letters claim as new and desire to Patent is: l

1. A door having a closed panel comprising a thin imperforate metal sheet and expanded metal bonded to the inner face of the sheet at spots distributed throughout the area of the sheet and forming a 'rigid backing for preventing flexure of the sheet and box-like border-strips having transversely extendingv portions around the margins of theexpanded metal, the margin of the sheet and the border-strips being interfolded and bonded together, the marginal portions of the expanded metal having transversely extending portions bonded to the transversely extending portions of the strips.

2. A door having a chsedpanelcomprising a I thin imperforate sheet of metal, expanded metal bonded to the-inner face ofthe sheet at spots distributed throughout the area of the sheet and forming a rigid backing for preventing flexure of the sheet and border-strips around the margins of the expanded metal and secured to thesheet and comprising transversely extendings flanges, the expanded metal having portions extending away from the sheet and bonded to the flanges.

- expanded metal.

thin metal sheet, expanded metal bonded to the inner face of the sheet, border-strips'around the mar ins of the expanded metal, the expanded metal being' provided with substantially V-shaped portions bent away from the sheet, and a strip extending across and bonded to the apicesof the v-shaped portion of the expanded metal.

5. A door having a closed panel comprising a metal sheet, expanded metal bonded to the inner face of the sheet, border-strips around the margins of the expanded metal, the expanded metal bein vprovided with portions bent away from the sheet, and a strip provided with flanges and extending across and bonded to the bent portions of the expanded metal.

6. A door having a closed panel comprising a thin metal sheetf expanded metal bonded to the inner face of the sheet, border-strips aroundthe margins of the expanded metal, the expanded .metal having a row of portions bent away from the sheet, and a strip extendingacross and.

bonded to the bent portions of the expanded sheet, the expanded metal having a row of porticns bent away from the sheet aiong a line diagonally of the panel, and a strip connecting and bonded to the rowof bent portions of the 8. A door having a closed panel comprising a thin metal sheet, diamond-mesh expanded metal bonded to the inner iace ofthe sheet, the ex-.

panded metal having arrow of portions bent away from the sheet along-a line diagonally of the panel and across the short axis of the diamonds in the expanded metal, the long axis of the diamonds extending substantially acrossthe.

other diagonal ofthe panel, and a. strip connecting and bonded to the bent portions of the expanded metal.

9. A door having a closed panel comprising a thin metal sheet, diamond-mesh expanded metal bonded to the inner face of the sheet, border strips around the margins of the expanded metal,

the expanded metal having a row of portions bent away from the sheet along a line diagonally of the panel and across the short axis of the diamonds in the expanded metal, the long axis of the diamonds extending substantially across the other diagonal of the panel, and astrip connecting and'bonded to the bent portions of the expanded metal, and bonded to the border-strips.

10: A door having a closed panel comprising a thin imperforate metal sheet, flattened expanded metal which has oneface of the strands and bonds coplanar with the contiguous face of the sheet and bonded to the inner face of the sheet at spots distributed throughout the area of the sheet and ferming a rigid backing forpreventing flexure of the sheet, and transversely extending border-strips around the margins of the expanded metal, the margin of the expanded -m etal having diagonally extending portions se- I cured to the border strips. g

11. A door having'a closed panel comprising a thin imperforate sheet of metal, expanded metal bonded to the inner face of the sheet at spots distributed throughout the area 0! the sheet and forming a rigid backing for preventing flexm'e of the sheet, and border-strips around the margins of the expanded metal, secured to thesheet and having portions extending transversely to the plane of the sheet, the expanded metal having diagonally extending marginal portions with ends bonded to the transversely extending portions of the border strips.

ALFRED S. KOS. GLENDON T. GERLACH. PETER ALTMAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2649171 *Nov 28, 1949Aug 18, 1953Sigfried Persson EricMetal door
US2760814 *Jul 11, 1951Aug 28, 1956Budd CoDoor, particularly for automobiles, with reinforcing ribs
US4259385 *Feb 9, 1979Mar 31, 1981National Steel CorporationExpanded reinforcing sheet material, its method of manufacture, and sheet material reinforced therewith
US4297154 *Nov 3, 1980Oct 27, 1981National Steel CorporationMethod of manufacturing expanded reinforcing sheet material
US5080427 *Nov 13, 1990Jan 14, 1992Shape CorporationImpact beam
US6003277 *Apr 14, 1998Dec 21, 1999Newell Industrial CorporationCo-extruded integrally reinforced cellular PVC window sash
US6017084 *Feb 4, 1998Jan 25, 2000Oakwood Energy Management Inc.Energy absorbing assembly
US6056349 *Jun 9, 1997May 2, 2000Aluminum Company Of AmericaVehicle door having improved side crash resistance and associated method
US6199942Jun 8, 1999Mar 13, 2001Oakwood Energy Management, Inc.Modular energy absorbing assembly
US6247745Feb 7, 2000Jun 19, 2001Oakwood Energy Management, Inc.Formed energy absorber
US6454211 *Dec 18, 2000Sep 24, 2002Airbus Deutschland GmbhStructural component particularly for an aircraft
US6474725Jun 1, 2001Nov 5, 2002Meritor Light Vehicle Technology, LlcReinforced cargo doors
US6679967Jul 17, 2000Jan 20, 2004Oakwood Energy Management, Inc.Method for making a modular energy-absorbing assembly
US6682128Jun 19, 2001Jan 27, 2004Oakwood Energy Management, Inc.Composite energy absorber
US7131674Oct 28, 2004Nov 7, 2006Netshape International, LlcBumper system incorporating thermoformed energy absorber
US7222897Aug 29, 2006May 29, 2007Netshape Energy Management LlcMethod of constructing bumper incorporating thermoformed energy absorber
US7228723Feb 4, 2005Jun 12, 2007Netshape Energy Management LlcBumper impact-testing device
US7360822Jan 20, 2004Apr 22, 2008Oakwood Energy Management, Inc.Modular energy absorber and method for configuring same
US8146863 *Jul 26, 2007Apr 3, 2012Airbus FranceAircraft doorway
US8726424Jun 3, 2010May 20, 2014Intellectual Property Holdings, LlcEnergy management structure
US20040178662 *Jan 20, 2004Sep 16, 2004Carroll Phillip PatrickModular energy absorber and method for configuring same
US20050057053 *Oct 28, 2004Mar 17, 2005Darin EvansBumper system incorporating thermoformed energy absorber
US20050097004 *Oct 28, 2004May 5, 2005Eduardo Masse BlumeMethod of advertising and related products
US20060001278 *Feb 4, 2005Jan 5, 2006Netshape International LlcBumper impact-testing device
US20060066134 *Jan 20, 2004Mar 30, 2006Oakwood Energy Management, Inc.Modular energy absorber and method for configuring same
US20060284431 *Aug 29, 2006Dec 21, 2006Darin EvansMethod of constructing bumper incorporating thermoformed energy absorber
US20090308977 *Jul 26, 2007Dec 17, 2009Airbus FranceAircraft doorway
USD679058Jul 1, 2011Mar 26, 2013Intellectual Property Holdings, LlcHelmet liner
USD683079Oct 10, 2011May 21, 2013Intellectual Property Holdings, LlcHelmet liner
USD733972Sep 12, 2013Jul 7, 2015Intellectual Property Holdings, LlcHelmet
WO1999039939A1 *Nov 18, 1998Aug 12, 1999Oakwood Energy Man IncEnergy absorbing assembly
Classifications
U.S. Classification52/787.12, 244/129.5, 52/630, 52/799.11, 244/133, 49/504, 296/146.6
International ClassificationB60J5/04
Cooperative ClassificationB60J5/0441, B60J5/0415
European ClassificationB60J5/04E2D3, B60J5/04D3