Quick attach door system for a doorless storing structure

A quick attach door system for enclosing a doorless shelved structure, such as a cabinet, wherein the shelves are supported by a number of apertured uprights which are used to accept the installation of a pair of vertically spaced door support members, each door support member being provided with apertured upright attachment members and with a door supporting structure, the door supporting members having portions extending outwardly of the upright members, a pair of door-halves being supported by the door support members, wherein the door-halves are coupled to the door support members by hinge devices that are retractable to permit installation and removability of the door-halves. The hinge devices can be secured to prevent retractability once the door-halves are shut and locked.

This invention is primarily concerned with a door system which can be 
installed on a storing structure such as a cabinet or other furniture 
provided with shelves for storing articles, the structure or cabinet 
having an open face, that is, without a door. The invention is 
particularly concerned with a quick attach door system for installation on 
an open face cabinet. 
PRIOR ART 
Previous prior art door systems installed on open face (doorless) cabinets 
are provided with full perimeter frames with doors attached to the 
vertical uprights with butt hinges and in some cases continuous (piano) 
hinges. Installation generally requires drilling and fastening with bolts 
to support the perimeter frame on the cabinet opening. Such prior art door 
systems require excessive time for installation compared to the present 
invention. The installation is time-consuming and is a money factor 
leading to an extensive expense, especially on multiple installations. 
Manufacturing time and cost is extensively higher due to product 
complexities, packaging and shipping to the installation site. 
FIELD OF THE INVENTION 
This invention relates to a practical fast attachment of a door system to 
an existing storage shelving support structure, such as a cabinet having 
an open face. The invention can be utilized with different types of 
cabinets manufactured by SpaceSave, Aurora, Tennsco, and other cabinets 
that have similar shelf support structure within the interior of the 
cabinet. 
The foregoing mentioned cabinets are provided with vertical apertured 
uprights some of which are fastened to the back of the cabinet and the 
other vertical uprights are attached to the front vertical sides of the 
cabinet opening. The apertures in the vertical uprights are adapted to 
receive shelving provided with lugs which are fitted into the apertures. 
This provision is also used in the present invention wherein an upper 
support member and a lower support member are provided with lugs which are 
fitted into the apertured uprights. Only in this case, the upper and lower 
support members are attachable to the front uprights adjacent the opening 
in the cabinet. The door used in the present invention comprises a pair of 
door halves, each door half being provided with a pair of retractable 
spring pin hinges, thus making an efficient and economical system to 
install. 
Manufacturing, packaging and shipping to the site of installation are 
design benefits because the doors which are preassembled with a lock catch 
and retractable spring pin hinges are still individual or separate and can 
be compactly packed with individual upper and lower preassembled support 
members. 
SUMMARY OF THE INVENTION 
The main object of the invention is to provide a door system which can be 
quickly attached to a doorless structure such as an open face cabinet, 
provided with vertically arranged shelves. 
Another object of the invention is to provide a door system having door 
halves which can be readily installed and dismounted if necessary. 
A still further object of the invention is to provide a door system using a 
pair of door halves provided with quick release hinge members. 
A still further object of the invention is to provide a door supported by 
quick release spring pin hinges which can be placed in a latched, 
non-removable, manner. 
A door system for equipping a doorless structure provided with vertically 
arranged shelves supported on vertical apertured uprights, such as in a 
storage cabinet, wherein a pair of vertically spaced support members are 
provided with vertical apertured upright attachment means and with a door 
supporting means, the door supporting means extending outwardly of the 
vertical apertured upright attachment means to support a pair of door 
halves which are retractably hinged to the door supporting means. 
Each upright attachment means have a pair of vertically extending faces 
provided with aperture engagement means which is provided with lugs. 
Alternatively, the aperture engagement means has tabs punched outwardly of 
the vertical faces. The faces also include holes for accepting screws 
adapted for fastening the upright attachment means with respect to the 
uprights. 
A swinging edge of each door half is provided with an extended flange to 
engage with a corresponding extended flange on the other door half, 
wherein one of the door halves is provided with a lock catch for 
engagement with the door supporting means. 
Each door half is supported by retractable hinge means in the form of a 
spring pin hinge positioned along a pivot swing line of the door-half, the 
spring pin hinge having a pin extending out of upper and lower edges of 
the door half, each pin being retractable into the interior of the 
door-half. 
In particular, each support member has a structure that has an elongated 
vertically extending face adapted to span across and to abut the vertical 
uprights, each end of each face having a lug. A horizontal flange extends 
outwardly from the face and terminates in a vertically extending flange to 
define a channel with the face. Each end of the horizontal flange, 
adjacent its respective lug, has a cut-out adapted to accommodate the 
presence of an upright. 
A door system for equipping a doorless shelf structure having 
shelf-supporting apertured uprights, the structure being an open face 
cabinet, the system having a pair of vertically spaced upper and lower 
support members, each having a vertically extending face, and at least a 
pair of lug members extending out of the face intended for engagement with 
uprights in the cabinet, the face having a horizontal flange extending in 
the same direction as the lug members. The horizontal flange terminates in 
a vertically extending flange to define a channel with the face, the 
horizontal flange also having at each end a pivot hole, each end of the 
horizontal flange having a cut-out adjacent the respective pivot hole and 
respective lug member. A pair of door-halves, at their pivot axes, are 
provided with upper and lower spring pin hinges having pivot pins 
engageable with said pivot holes in the upper and lower support members. 
At least one pin on each door-half is retractable from its door-half 
engaging position. One door-half has a swinging edge provided with a 
lapping portion to engage with an extending flange on the other door-half. 
One of the door-halves has a lock device with members protruding out of 
the door-half and engageable with the upper and lower support members. The 
engagement is achieved with slots in the support members receiving the 
protruding members from the lock device. 
The upper support member on its face, adjacent each lug, is provided with a 
hole for receiving a screw for fastening the upper support member to the 
upright and to prevent accidental dislodgement. 
As described hereinabove, the horizontal flanges terminate in vertically 
extending flanges for the purpose of rigidifying the horizontal flange 
along its longitudinal axis. If the gauge of the metal forming the upper 
and lower support members is substantially thick, it is not necessary to 
provide the vertically extending flange. 
A door system for equipping a doorless shelved structure having shelf 
supporting apertured uprights, such structure being an open-face cabinet, 
a pair of vertically spaced upper and lower support members provided with 
vertically extending faces, at least a pair of lug members extending out 
of the faces and intended for engagement with the apertured uprights. Each 
of the faces has a horizontal flange extending in the same direction as 
the respective lug members, the horizontal flange having at each end a 
pivot hole and an adjoining cut-out adjacent respective pivot holes and 
respective lug members. The cut-outs are intended to provide clearance for 
the upright members. The upper and lower support members support a pair of 
door-halves, each door-half, at its pivot axis, being provided with upper 
and lower spring pin hinges which are engageable with the respective holes 
in the upper and lower support members.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
As shown in FIG. 1, a quick attach door system 10 has an upper support 
member 12 and a lower vertically-shaped support member 14 for supporting a 
left door member 16 and a right door member 18, wherein the upper support 
member 12 is supported by left and right apertured uprights 20 and 22 and, 
similarly, the lower support member 14 is supported by the left and right 
apertured uprights 20 and 22. The door members 16 and 18 define a pair of 
door halves. 
The attachment of the upper and the lower support members to the uprights 
is best illustrated in FIG. 4, wherein the upright 22 is provided with a 
series of apertures 24 which are adapted to receive a capped lug 26 
extending from a vertical face 28 of the upper support member 12, the 
vertical face 28 adapted to abut a vertical face 30 of the upright 22. The 
vertical face 28 of the upper support member 12 has an opening 32 for 
receiving a screw 34 which, after the installation is completed, a 
threaded surface 35 of the screw 34 will engage threadedly with an inner 
surface 36 of the aperture 24, this engagement preventing accidental 
upsetting of the upper support member 12 in case the doors are jarred 
upwardly. The vertical face 28 and the lug 26 define upright attachment 
means. 
Extending from the vertical face 28 of the upper support member 12 is a 
horizontal flange 38 which in turn terminates in a vertically bent flange 
40 to define with respect to the vertical face 28 a channel 43. Adjacent 
each end 42 of the upper support member 12 is an opening 44 for receiving 
a pin 47 of a spring pin hinge 46, which pin can be provided, if desired, 
with a bushing spacer 48 preferably made from plastic material. The pin 47 
and the spring pin hinge define a retractable hinge means. 
The details of the spring pin hinge 46 can be better seen, as to its 
mounting, on the door 18 in FIG. 1a. The pin 47 has a long leg 50 provided 
with a finger hold 52, the leg 50 being vertically and movably supported 
by bushings 53 on a plate 54. The pin 47 is biased upwardly or outwardly 
of the door by a spring 56. To prevent unauthorized depressing of the pin 
47 into the interior of the door when the doors are locked, a lock tab 94 
is provided to immobilize the depression of the pin 47. The lock tab 94 
has an arm 95 which abuts the finger hold 52 to thereby prevent depressing 
of the pin 47 internally of the door. The lock tab 94 is secured to the 
door 18 with a screw 96. The door 18, as shown in FIG. 1, has a hollow box 
construction having a panel face 58 having a flanged border 57 around the 
perimeter of the door, except for an edge 60, which is provided with an 
extended flange 62 adapted to overlap an extended flange 64 of the door 
16. The door 18 is provided with a lock catch 66 having lock tabs 68 which 
are adapted to engage with slots 70 in the upper and lower support member 
12 and 14, respectively. The structure of the lower support member 14 is 
comparatively similar to that of the upper support member 12, but the 
lower support member 14 has a longer vertical face 28a as shown in FIG. 3, 
wherein a bottom of the vertical face 28a will nearly touch a bottom 74 of 
a cabinet. 
Referring to FIG. 3, there is shown the installation of the door system 10 
in a cabinet 76 which, for simplicity, shows only a top shelf 78 and a 
bottom shelf 80. 
Referring to FIG. 6, there is a partial detail illustration of the lower 
support member 14. The member 14 has the vertically extending face 28a 
having capped lugs 26a. From the face 28a, there is a horizontally 
extending flange 38a, having a lateral edge terminating in a vertically 
extending flange 40a. The flange 38a has an end 42a. The flange 38a has a 
cut-out 82a adapted to abut the apertured upright 22. The installed 
position of the lower support member 14 can be viewed better in FIG. 3. 
To install the door system into the doorless cabinet 76, the top shelf 78 
and the bottom shelf 80 are removed. Then, upper support member 12 is 
engaged with apertured upright 22 by inserting the capped lug 26 into the 
aperture 24 and then securing the upper support member 12 from accidental 
dislocation by inserting the screw 34 to engage with a lower aperture 24 
in the upright 22. Similarly, the other end of the upper support member 12 
is engaged with an aperture in the other upright member 20, as best viewed 
in FIG. 1. A similar procedure is followed in installing the lower support 
member 14 with respect to the left and right uprights 20 and 22, 
respectively. However, there is no need for using a screw 34 to attach the 
lower support member to the uprights. After the upper and lower support 
members 12 and 14 have been secured to the uprights, the top and bottom 
shelves 78, 80 are replaced. 
The vertical face 28 of the vertical support member 12 and the capped lug 
26 comprise the upright attachment means. The vertical flange 40 and the 
horizontal flange 38 of the upper support member 12 comprise the door 
supporting means. Each end of the horizontal flange 38 is provided with a 
cut-out 82 to accommodate the installation of the upper support member 12 
abutted against the upright 22. 
A modification of the upper support member 12 is shown in FIG. 5, wherein 
an upper support member 84 has a vertical face 88 provided with a tab 86 
instead of a capped lug 26 for attaching the upper support member 84 to 
the upright. The face 88 is provided with a hole 90 for receiving a screw 
34 for securing the upper support member permanently to the uprights. The 
lower support member can also be modified in accordance with the 
embodiment in FIG. 5 except that the tab 86 punched out of the face 88 
would be in an opposite direction so that the tip of the tab would face 
toward the edge 92. 
The upper support member 12 and the lower support member 14 constitute the 
vertically-shaped support members. The vertically extending faces 28 and 
28a constitute the upright attachment means. The capped lug 26 and the tab 
86 constitute the aperture engagement means. The left door member 16 and 
the right door member 18 comprise a pair of door-halves. The end 42 of the 
upper support member 12 and the end 42a of the lower support member 14 
constitute the door supporting means. The spring pin hinge 46 constitutes 
the hinge means. 
Further variations and modifications may be made without departing from the 
spirit and scope of the invention which is defined in the following 
claims.