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Патент USA US3060506

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Oct. 30, 1962
3,060,492
W. DELLITH
SEPARABLE, HINGE
Filed Dec. 9, 1960
2 Sheets-Sheet 1
INVEN TOR.
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Oct. 30, 1962
3,060,492
W. DELLlTH
SEPARABLE HINGE
Filed Dec. 9, 1960
2 Sheets-Sheet 2
FIG. 5
INVEN TOR.
WERNER
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DELLITH
F gémaé/
HIS ATTORNEY.
United States Patent
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1
3,060,492
SEPARABLE HINGE
Werner Dellith, Ringwood, N..I., assignor to
Camloc Fastener Corporation
Filed Dec. 9, 1960, Ser. No. 74,948
5 Claims. (Cl. 16-172)
This invention relates to readily detachable hinge
elements and relates more particularly to a novel sepa
3,060,492
Patented Oct. 30, 1962
2
element 22 which is contacted by the door (FIG. 3)
when the latter is closed and plate 21 is contacted by
the door hinge (FIG. 4) when the door is open.
The ?rst plate '10 further has a plurality of spaced
knuckle sections 24 which are enlarged at their outer ends
26 where aligned hinge pins openings 28 are formed.
The openings receive a continuous hinge pin 29. Finally,
the plate 10 is formed with an internal rib 301 adjacent the
inner ends of generally rectangular openings 31 forming
rable hinge designed primarily for a pair of doors in 10 walls 33 which de?ne the ‘knuckles.
an aircraft which open outwardly and which most oc—
casionally be completely removed from the craft during
the removal of engines and other internal parts.
The second plate 111 similarly has a convex outer
curvature 32 and a recess 34 to receive the outer skin
36 of the door 12. This plate is also formed with spaced
The hinge structure of the present invention ?nds an
openings 37 forming walls 38 which de?ne the ends of
important use on aircraft of very high speed for mounting 15 knuckles 39 having a C-shaped contour 40 at their outer
engine access doors which are usually formed in pairs
ends forming channel 41 whose open side or slot ex
and doors in the wings and in the fuselage whose con
tends outwardly, i.e., in the direction of the outside of
tours usually have compound curvatures and which bear
the structure or craft and is adapted to receive rib 30
structural loads.
of plate 16. Another C-shaped section 42 at the other
An important object of the invention is to provide 20 end of the knuckle forms a channel or slot comrising a
an elongated hinge structure for doors of this character
knuckle 43 to receive the continuous hinge pin 29. The
which assures against breakage or malfunction and which
latter slot extends in a direction away from channel 41
at an angle of about 90° thereto.
To assemble the hinge it is only necessary to move
will prevent the hinge from accidentally becoming de
tached when the doors are held in open positon.
Another object of the invention is to provide a hinge 25 the knuckles 39 of hinge plate 11 into the openings be
for outwardly opening aircraft doors which are so formed
tween the knuckles 24 in hinge plate 10 and move them
as to positively prevent the doors from blowing out while
to a point where the hinge pin engages the channels 43.
permitting the doors to move slightly inwardly against
This is the position of .FIG. 4. When the door is rotated
the pressurized interior of the craft.
90° to the position of FIG. 3 the rib 30 enters the chan
A further object of the invention is to provide a readily 30 nels 41 of knuckles 39 and the parts are locked not only
separable hinge for doors and the like wherein the hinge
against radial movement in any direction with respect
elements are ?rmly locked together when the doors are
to the hinge pin but also against axial movement due to
closed and the parts are secured aganst radial or axial
the interengagement between walls 38 and 33. In this
movement but wherein opening of the doors permits
position spring 22 forms a seal and when the door is
ready separation of the hinge parts and consequent com
swung fully open to the position of FIG. 4 the outer end
plete removal of the door from the supporting structure.
of the knuckle 40‘ engages plate 21 and this prevents dis
This arrangement is achieved by a system of inter?tting
engagement of the parts.
knuckles, one set with a hinge pin and the other With a
In order to insure that the hinge cannot unhook from
series of open channels to receive the pin when the hinge
the hinge pin the hinge plate vv11 may have a plurality
strip having the channel is moved in one direction only
of square stops or blocks 44 secured by studs 45 which
the latter strip having a second set of open channels to
are quickly removable to arrange for uncoupling of the
receive a rib in the ?rst strip.
hinge.
In the drawing:
While there have been described herein what are at
FIG. 1 is a broken perspective view of a hinge ele
45 present considered preferred embodiments of the inven
ment embodying the present invention.
tion, it will be obvious to those skilled in the art that
FIG. 2 is a broken exploded view of the hinge plates.
many modi?cations and changes may be made therein
FIG. 3 is an end elevation showing the door supported
without departing from the essence of the invention. It .
by the hinge in closed position.
is therefore to be understood that the exemplar-y embodi
FIG. 4 is a similar view but showing the door in open 50 ments are illustrative and not restrictive of the inven
position.
tion, the scope of which is de?ned in the appended claims,
FIG. 5 shows the door in partially opened position and
and that all modi?cations that come within the meaning
showing the means which may be used for preventing
and range of equivalency of the claims are intended to be
unhooking of the hinge.
included therein.
FIG. 6 shows the hinge element partly disengaged from 55 What I claim is:
the hinge pin.
1. A separable hinge for mounting a door on a struc
FIG. 7 shows the angle at which the door may be re
ture and comprising a pair of elongated hinge plates,
moved from the structure.
one secured to the structure and the other secured to the
FIG. 8 shows the ?nal stage of disengagement just prior
door, the ?rst plate having a plurality of generally rec
to the second hinge plate being slid free of the ?rst hinge 60 tangular openings along its outer edge forming spaced
late.
p The hinge structure of the present invention includes
a hinge plate 10 which is carried by the structure and
a second hinge plate 11 secured to the door which is
shown at 12. Because of their multiple contours, both 65
plates are preferably formed by extrusion methods.
Plate 10 has a smooth generally convex outer contour
14 and a recess 16 along its inner edge which receives
the outer skin 18 in ?ush relation. The structure is
knuckles having aligned holes at their outer ends and a
continuous hinge pin in said holes, the plate also being
formed with an internal rib inside the inner ends of the
openings, the second plate also formed with spaced
knuckles received between the knuckles in said ?rst plate
and each being formed with an inwardly facing gen
erally C-shaped channel at its inner end forming a hook
which receives the hinge pin and a channel at its outer
end which receives the rib in the ?rst plate, preventing
shown in broken lines in fragmentary fashion and in 70 lateral movement between the plates when said rib and
cludes an inner skin *19 and an angular plate 20 to which
is secured a second angular plate 21 carrying a spring
recess are engaged.
2. A separable hinge for mounting a door on a struc
3,060,492
4
3
knuckles in the ?rst plate having aligned holes at their
outer ends and a hinge pin in said holes, said ?rst plate
also being formed ‘with an internal rib inside the inner
ends of the openings, the knuckles in the second plate
being formed with aligned open channels at their inner
ends to receive the hinge pin and with aligned open chan
ture and comprising a pair of elongated hinge plates, one
secured to the structure and the other secured to the
door, the ?rst plate having a plurality of generally square
notches along its outer edge forming spaced knuckles
having aligned holes at their outer ends and a continuous
hinge pin in said holes, the plate also being formed with
nels at their router ends disposed at an angle of about 90°
to the ?rst channels and which receive the rib in the
?rst plate, preventing lateral movement between the plates
an internal rib inside the inner ends of the notches, the
second plate also formed with spaced knuckles received
between the knuckles in the ?rst plate and each being
formed with an inwardly facing generally C-shaped re 10 when said rib is received in the outer end channels.
5. A separable hinge for mounting a door on a struc
cess at its inner end which receives the hinge pin and
ture and comprising ?rst and second hinge plates, the ?rst
a recess at its outer end which receives the rib in the
plate having a plurality of generally rectangular open
ings along its outer edge forming spaced knuckles having
?rst plate, preventing lateral movement between the plates
when said rib and recess are engaged.
3. A separable hinge for mounting a door on a struc
15 aligned holes at their outer ends and a hinge pin in said
ture and comprising ?rst and second elongated hinge
holes, the second plate being formed with spaced knuckles
plates, one plate being secured to the structure and the
received between the knuckles in the ?rst plate and said
other being secured to the door, said plates having a
latter knuckles being formed with aligned generally 0
shaped open channels at their inner ends forming hook
plurality of generally rectangular openings along their
elements which receive the hinge pin, the outer ends of
said latter knuckles having aligned open channels dis
posed at an angle of about 90° to the ?rst mentioned
channels and a rib formed along the inner ends of the
aligned holes at their outer ends, and a continuous hinge
knuckles in the ?rst plate which is received in the second
pin in said holes, the knuckles in the second plate having
aligned open channels at their inner ends which detach 25 mentioned channels and which prevents movement be
tween the plates when they are engaged.
ably receive the hinge pin and inter?tting parts between
the outer ends of the latter knuckles and the ?rst plate
References Cited in the file of this patent
to prevent disengagement of the channels from the hinge
pin when the door is in closed position.
UNITED STATES PATENTS
meeting edges forming spaced knukles, the knuckles in
the ?rst plate being positioned within the openings of
the second plate, the knuckles in the ?rst plate having
4. A separable hinge for mounting a door on a struc- 30
ture and comprising ?rst and second elongated hinge plates
secured respectively to the structure and to the door,
each plate having a plurality of generally rectangular
openings along one edge forming spaced knuckles which
are received in the openings in the other plate, the 35
771,654
Meek _______________ __ Oct. 4, 1904
1,578,408
2,618,809
2,644,192
Diday ______________ __ Mar. 30, 1926
Rubinoff ____________ __ Nov. 25, 1952
McClellan ____________ __ July 7, 1953
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