US2648870A - Offset hinge construction for laminated plywood cupboards and doors - Google Patents

Description

8, 1953 D. R. WILHELMI OFFSET HINGE CONSTRUCTION'FOR LAMINATED PLYWOOD CUPBOARDS AND DOORS 2 Sheets-Sheet 1 Filed May 31, 1950 |I| ||||l.||||||||.-.|r

[NVEA/I'OR ZUDLEYH. M/JZHELMI Aug. 18, 1953 D; R. WILHELMI 2,648,870

OFFSET HINGE CONSTRUCTION FOR LAMINATED PLYWOOD CUPBOARDS AND DOORS Filed May 31, 1950 2 Sheets-Sheet 2 JZGZ 12.

' pwmyzz. MLHELMI,

C) fA/VEA/Z'OR Patented Aug. 18, 1953 U O I E OFFSET HINGE CONSTRUCTION FOR LAMINATED PLYWOQD ouratmans AND DOORS Dudley It. Wilhelmi, Tacoma, Wash. Application May 31, 1950, Serial No. 165,285

1 Claim. 1

The present invention relates to an ofiset hin e construction for laminated ply-wood cupboards and doors.

In modern kitchens it is a common practice to install metal built-in sinks and cupboards which occupy a considerable wall area and in such cases it is desirable to make the harmonizing cupboard casings and their partitions out of inexpensive ply-wood, and this requires that specially constructed door hinges be provided that i can be attached to the cupboard by screws which extend transversely of, rather than parallel to, the ply-wood laminations.

Furthermore, in order to harmonize the cupboard structure with the adjacent built-in structure of the kitchen it is necessary to eliminate molding and rib-like projections of all kinds from the outer surface portions .of the cupboard, including elimination of projecting hinge parts tour of the cupboard. To carry into efiect this feature, a special hinge construction is .required, which it is an object of this invention .to provide.

At the present time cabinet makers, who are constructing cupboards and the like out of Wood, 21

the time consuming and somewhat expensive= operations of rabbeting, painting and sanding which have heretofore been less expensive in the manufacture of the doors and casings of ,allmetal cupboards.

Accordingly, an important object of thepresent I invention is to provide a construction for cupboards and other cabinets that will lower the cost of wooden cabinet making to su ch anextent that men working at that trade will no longer be subjected to the disadvantages mentioned in the precedin paragraph, but will be enabled to compete successfully with the manufacturer of all-metal cabinets. My invention accomplishes this object by .providing, in a wooden cabinet structure, a novel door and hinge combination which makes it possible to dispense with rabbete ing of doors and use of stiles of ,a kind which mar the streamline appearance of the cabinet and require additional paint and sanding, 'my invention making it possible to hang all doors in such a manner that when closed, their outer faces will provide for the cabinet asmooth, unbroken, continuous front surface.

It will be seen that, by providingthe cabinet with the aforesaid smooth, unbroken front surwhich, if present, would mar the streamline con- :2

face made up entirely of closed doors, a better appearance is produced than is possessed by cabinet structures lwherein stiles or partitions appear between adjacent closed doors, for in the latter instance a greater number of vertical cracks or meeting lines appear between adjoining structures reducing the number of which, along with the other advantages, makes it easier to keep the cabinet clean, while it more completely excludes outside air and dust.

Furthermore, this invention advances the art to Which it pertains in that, for the first time, it makes it possible for the consumer to obtain flush, ply-Wood cabinets, attractive in appearance, easy to keep clean and capable of being constructed and painted at a lowered cost. These features are desirable, not only in kitchens, but also in schools ofiices, hospitals and other habitations.

A more specific object is to provide for countersinkin parts of the hinge into a door structure in an improved manner sothat a single countersink or recess in the door will accommodate a plurality of hinge parts nestable therein.

Still another specific objects is to provide, for swingably attaching two doors to the front .edge portion of the cupboard partition-and at the same height, a pair of mated, identically con- [structed hinges wherein an offset part of each member of the pair will occupy one-half the width of said partition, said mates being reversely mounted so that their attaching screws are staggered so as not to interfere with each other.

Other objects, advantages and features of invention will herein-after appear.

Referring to the accompanying drawings, which illustrate a' preferred embodiment of the invention,

Fig. 1 15a fragmentary front perspective view of a' cabinet equipped with my improved offset hinges.

Fig. 2 is an enlarged fragmentary perspective View of the novelhinge construction showing the same applied to the end partition of the cupboard and to one of thedoors of said cupboard. Fig. 3 is'an enlarged, horizontal, fragmentary section on line 3-3 of Fig. 1, showing in fulllines the cupboard door closed and in dotted lines twp other positions of said door.

F ig. 4 is' a sectional' view of the hinge with adjacent structure omitted, the plane of section being indicated by the 14-4 of Fig. 3.

Fjig. 5 is an enlarged perspective view of a hinge s ru t r mbo yin h in n ice as applied to a partition wall of a cupboard, phan tom lines indicating the adjacent structure in normal and adjusted positions.

Fig. 6 is an exploded view of the hinge structure shown in Fig. 5.

Fig. 7 is an enlarged exploded fragmentary view of the hinge in the right hand end portion of Fig. 1.

Fig. 8 is a fragmental vertical section of a corner portion of the cupboard, having the novel hinge incorporated thereinto, the door being closed and the plane of section being indicated byline 88 of Fig. 10.

Fig. 9 is a fragmentary elevation illustrating the same parts as those shown in Fig. 8 but with the door in partly open position.

Fig. 10 is a horizontal section on line of Fig. 8.

Fig. 11 is a horizontal section on line II-ll of Fig. 9.

Fig. 12 is a section similar to Fig. 10 except that the door has been swung through an angle of 270 degrees.

Fig. 13 is a perspective View of the hinge receiving edge portion of a door as it leaves the factory after having been shaped to receive the hinges.

Referring in detail to the drawings, the invention is therein shown applied to a cupboard H1 having a top wall H, end walls i2, i201, a bottom wall [3 and a vertical partition 14. The entire front side of said cupboard is occupied by a series of doors [6, l1 and i8.

At the right hand end of Fig. 1 are shown twin hinges l9, each of said hinges comprising a pivot pin 2!) (see Figs. 2, 3 and 7 to 13) which swingably unites its wings 2| and 22. The wing 2| is angularly shaped, comprising end runs 23 and 24 united by a middle rightangularly offset run 25, the run 23 having a curled end portion 26 to receive the hinge pin 2%; and the run 24 having counter-sunk screw holes 2?. The hinge wing 22 comprises an attaching plate 28 provided with screw holes 29 and a pair of arms 30 which project right-angularly from opposite side edges of the plate 28 at one end thereof, said arms being slightly tapered toward their apertured outer ends 3|, which receive the hinge pin 20. I

Referring more particularly to Fig. '7, at they point where the curl 26 joins the end run 23 there is a shoulder 32 at each end of said curl, the depth of each said shoulder being equal to the thickness of each arm 39, so that when the apertures in the ends of the arms 38 axially aline with the axis of the curl 26 the top face of the upper-most arm 30 will lie in the same plane as the upper edge of the end run 23. Each of said arms 30 is also provided with a shouldered part 33 to cooperate with the aforesaid shoulder 32, so that the upper and lower outer edge portions of the arms 30 will abut the inner face of the hinge part 23 when the door i8 is closed. When the hinge parts 2! and 22 have been assembled as aforesaid the head of the hinge pin rests upon the upper-most win so that gravity maintains the pin in its operative position.

The aforesaid outer end run 24 of the hinge wing 2| is attached by screws 24a to the outer portion of the inner face of the end wall In of the cupboard, and the offsetting middle run 25 of the wing 2| extends transversely across the outer edge of said wall l2a so as to make it possible to swing the door I3 from closed position through an angle of 270 degrees until said door abuts in a flatwise manner against the outer face of said end wall, other conditions permitting.

Describing now the relation-ship of the hinge wing 22 to the door l8, said door as shown in Fig. 13, as well as in the other views, is constructed of five laminations of ply-wood, and at each of the points of application of the hinge part 22 thereto, has its hinge Wing attaching face rightangularly recessed at 36 and across its edge is provided with a pair of kerfs 3! in which to seat the aforesaid arms 30 of the hinge wing 22. Each of said recesses 36 is of suflicient depth, not only to house the attaching plate 28, but ,also to provide over said plate enough clearance so that when the door is in the closed position there will be sufiicient room in which to counter-sink the offset part 25 o the hinge part 2|. In this manner, when the door I8 is closed, its inner face will abut the entire front edge of the cupboard which it overlies.

It will now be seen that by this invention there is provided, as illustrated in Figs. 2, 8, 9, l0 and 11, the advantageous manner of supporting the door between the hinge arms 30 so as not to sustain the weight of the door solely by the screws 48, but the weight of the door is instead borne by the intact part 38 of the doorS edge between the aforesaid kerfs 31.

The dual hinge structure 50 shown in Figs. 5 and 6 differs from the hinge structure already described only in that the length of the offset portion 25a of said hinge structure 50 is shown as approximately half that of the corresponding part 25 of the hinge structure just described, this being true when the partition M of the cupboard is of the same thickness as the end walls thereof. In said hinge structure 5!], it will be seen that the hinge mounting runs 24 of the wings 2! are of a reversible character so that one pattern serves for both of the twin hinges 58. Also an important point to be noted is that, since said hinge parts are reversible, when they are arranged in the manner shown in Figs. 5 and 6 their screw holes 2'! have a reverse relationship to each other, so that when the screws are inserted their body portions will not interfere with each other.

The hinges 50 are attached to the partition Id of the cupboard in such a manner that the door it can swing outwardly through an angle of degrees until it abuts in a flatwise manner against the front face of the door l1, and the door I! can likewise be swung out through an angle of 180 degrees so as to abut similarly against the front face of the door it. This is effected by providing each hinge attaching wing with the offsetting run 25a and shaping and mounting the door carrying hinge wings 22, as aforesaid.

From the foregoing description it will be seen that, when the hinge structure provided by this invention is used, it is possible to anchor the hinges in a secure manner to the ply-wood partitions and doors of which it is desirable to construct the cupboards and other cabinets used in kitchens, and elsewhere. It should be understood that the present disclosure is for the purpose of illustration only and that this invention includes all modifications and equivalents which fall within the scope of the subject matter claimed.

I claim:

A door hinge comprising a door carrying wing, a mounting wing, said mounting wing consisting of a metal strap having two longitudinally spaced apart rightangular transverse, reversely directed bends in its midlength portion thus producing offset longitudinally extending, oppositely directed end runs and between said bends an intervening, transverse run which extends at a right angle to each of said end runs, screws extending through one of said end runs and adapted to attach such end run to the outer portion of the inner face of an end wall of a cupboard so that said intervening run extends transversely across the outer edge of said end wall, the other end run of said mounting wing having a curled outer end portion; said door carrying wing consisting of a rectangular plate carrying at one end two arms which are spaced apart the width of the plate and project rightangularly from the same face of the plate, said arms having apertured outer end portions, and a hinge pin extending through the apertures of said arms and through the aforesaid curled wing portion thus swingably fastening together the two Wings of the hinge, said two arms being adapted to be countersunk into kerfs across the edge of a door and said plate being adapted to be attached to and countersunk into the adjacent face portion of said door to a depth of at least twice the thickness of the plate, so that when said door is swung to a closed position in relation to the cupboard the countersink in the door which contains said plate will also provide a clearance for the aforesaid intervening run of the mounting wing of the hinge, allowing the attached portion of the closed door to abut fiatwise against the outer edge of said end wall of the cupboard.

DUDLEY R. WILHELMI.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 106,170 Jones Aug. 9, 1870 1,120,898 Brandlein Dec. 15, 1914 1,821,606 Anderson Sept. 1, 1931 FOREIGN PATENTS Number Country Date 552,409 Great Britain Apr. 6, 1943 564,926 France Oct. 31, 1923

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