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Патент USA US3088172

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May 7, 1963
F. P. ROBBINS
3,088,162
HINGE
Filed April 12, 1960
INVENTORt
l9
FREDERICK P. ROBBINS
ATTORNEYS
United States Patent 0
1
I
1p
IC€
3,088,162
Patented May 7, 1963
2
1
FIG. 3 is a greatly enlarged sectional view of the hinge
3,088,162
HINGE
Frederick P. Robbins, 224 S. Michigan Blvd,
Chicago 4, Ill.
Filed Apr. 12, 19.60, Ser. No. 21,632
7 (Iiaims. (Cl. 16—180)
structure shown in FIGS. 1 and 2; and
FIG. 4 is a perspective view of a formed sheet metal
spring which may be used as a component in a hinge
structure embodying the present invention.
To illustrate the invention the drawings show a hinge
structure 11 comprising a pair of parts 13 and 15 tormed
The present invention relates in general to hinges and
has more particular reference to a spring-pressed hinge
for relative rocking movement, the one upon the other,
and a spring 17 formed for inter?tting engagement with
structure especially well adapted for incorporation in 10 the parts 13 and 15 in order to hold the same together
spring clips, clipboards, loose leaf binders, and other
in hinging relationship and to yieldingly urge one of the
devices and articles embodying spring biased hinge struc
parts on the other in one direction around the ‘axis of
the hinge.
An important object of the present invention is to
As shown more particularly in FIG. 1, the hinge struc
provide an exceedingly sime and inexpensive hinge com 15 ture of the present invention may be incorporated in a
prising formed sheet metal parts ‘adapted for rapid as
clipboard, which, in the illustrated embodiment, com
sembly with minimum etiort by merely sliding the parts
prises a notebook. This clipboard notebook, as shown,
together axially of the hinge.
may comprise a backboard or panel 19 having the hinge
Another important object is to provide a hinge of
component 15 formed on or secured to the backboard,
utmost simplicity comprising a pair of formed parts 20 as at the top or back edge thereof, in position extending
adapted for relative rocking movement, one upon the
across the panel. Inwardly of the hinge component 15,
other, and a leaf spring adapted for assembly on the
the backboard or panel 19' may be provided with ‘an
parts in position to hold them together and to yieldingly
upstanding ?ange or lug or other abutment forming means
resist rocking movement of one part in one direction on
21 disposed in position for engagement with the top
the other.
or rear edge of a pad or stack of paper sheets 23, to
Another important object is to provide a hinge com
aline and position the pad or stack on the panel 19.
prising a pair of parts formed for relative tilting move
In order to hold the pad or stack of paper sheets 23
ment, one upon the other, about the axis of the hinge,
upon the panel, the hinge component 13 may be formed
said parts being formed with spring seating slots extend
with a portion 25 adapted to extend above and hence act
parallel with respect to the axis of the hinge, and a spring
as a cover for the upper or abutment ‘adjacent end of
comprising a strip of resilient material bent longitudinally
the pad or stack 23, the action of the spring 17 serving
to form the opposite lateral edge portions of the strip as
to press the portion 25 downwardly upon the pad in
spring seating ?anges extending in parallel planes, the
order thus to clamp or ‘clip the same ?rmly upon the back
spring being assembled in the hinge structure with said
panel 19.
tures.
seating ?anges respectively extending in the spring mount
ing slots of the relatively rockable parts, the medial por
tions of the spring embracing and enclosing said parts
In order to constitute the device shown in FIG. 1 as
a clipboard notebook, a cover panel 27 may be connected
with the hinge component 13, as by means of a conven
and serving to hold the same together.
A further object of the invention is to provide the rela
tional or other suitable hinge 29, at and along the edge
of the clip portion 25 remote from the hinge struc
tively rockable parts of the hinge with spring seating slots
having open ends at least at one end of the hinge, to
40 ture 11. The so hinged cover panel may normally over
the same into position, through the open ends of the
lie the top of the pad or stack of sheets 23, or may the
swung upon the hinge 2§ to the open position shown in
dotted lines in FIG. 2 of the drawing, in which the cover
slots, in the axial direction of the hinge.
panel 27 overlies the clip portion 25 and the hinge struc
permit the spring to be mounted in the slots by sliding
A still further object of the invention is to form the
spring in the shape of a sheet metal trough having one
ture 11. By pressing downwardly upon the cover panel
27 when in such open position, the hinge component 13
side higher than the other, the marginal portions of the
may be swung, on the component 15, from the normal
higher side, outwardly of the terminal edge of the shorter
or clip closed position, shown in solid lines in FIG. 3
side, being bent inwardly toward said shorter side, and
of the drawings, to the shifted or clip open position, shown
the terminal edge of said inwardly bent portion being bent 50 in dotted lines, in order to retract the clip portion 25
toward the bottom of the trough to form a re-entrant
from pad securing position and thus open the clip formed
?ange extending medially between and parallel with re
spect to the shorter side and the lower portions of the
by the hinge, the spring 17 yielding to permit such action.
ture, rapidly and with minimum effort, and serving not
only to e?ec’rively interlock the relatively tiltable parts
of the hinge structure together, but also to provide maxi
cover panel 27.
The parts, of course, will instantly return from the open
higher side of the trough, such spring con?guration being
or retracted position to the normal or closed position, by
particularly well suited for assembly in the hinge struc 55 action of the spring 17, immediately upon release of the
‘
As shown more particularly in FIG. 3 of the drawings,
the hinge of the present invention may be constructed
by forming the hinge component 15 with a narrow, rela
60 tively deep slot 31 extending between the opposite ends
the hinge.
The foregoing and numerous other important objects,
of the hinge structure, the component 15 being also
advantages and inherent ‘functions of the invention will
formed with an outwardly curved or convex semi-cylin
become apparent as the same is more fully understood
drical surface 33. The desired con?guration may ‘be at
from the following description, which, taken in connec
tained by forming the component 15 from a piece of
tion with the accompanying drawings, discloses a pre 65
relatively rigid sheet metal by turning an edge portion 35
ferred embodiment of the invention.
thereof through an angle of the order of 180° and into
Referring to the drawings:
parallel
spaced relation with respect to the body portion
FIG. 1 is a perspective view of a spring-pressed binder
36 of said piece, to thereby form the slot 31 to desired
for a notebook incorporating a. hinge structure embody
70 width between the portions 35 and 36, the semi-cylindrical
ing the present invention;
surface 33 being formed at the junction of said por
FIG. 2 is a sectional view taken substantially along
tions, and the axis of the hinge extending at the bot
the line 2—-2 in FIG. 1;
mum enclosure for the relatively rockable portions of
3,088,162
i
3
of the binge structure, and by then sliding the spring ,\
tom of the slot 31 along the center line of curvature of
the surface 33.
The hinge component 13 may also be formed with a
endwise onto the components 13» and 15, in the direction —
of the axis of the hinge, until the opposite ends of the”
spring are ‘brought into registration with the opposite ends
of the slots.
narrow, relatively deep slot 37 and a concave or in
wardly curved quarter-cylindrical surface 39 formed for
sliding engagement with the convex semi-cylindrical sur
It is thought that the invention and its numerous attend
ant advantages will be fully understood from the fore
going description, and it is obvious that numerous changes
may be made in the form, construction and arrangement
face 33 around the center line of curvature thereof, the
component 13 being also formed with a ?at abutment
surface 41 forming a continuation of the quarter-cylin
drical surface 39‘ on one side thereof, in position to 10 of the several parts without departing from the spirit
or scope of the invention, or sacri?cing any of its attend:
engage a cooperating ?at abutment surface 42 formed
on the component 15' on one side and as a continuation
of the semi-cylindrical surface 33, engagement of the sur
face 41 and 42 serving to limit relative turning movement
or the component 13 in one direction on the component
15 in the relative positions of said components shown in
solid lines in FIG. 3 of the drawings. The foregoing
con?guration of the component 13 may be readily ac
complished by ‘forming the component from a piece
of sheet metal by bending an edge portion 43 of the piece
ant advantages, the form herein disclosed being a preferred
embodiment for the purpose of illustrating the invention.
The invention is hereby claimed as follows:
15' 1. A hinge embodying a pair of components comprising
sheets bent to form cooperating bearing portions for rela
tive rocking movement, the one upon the other, and a
spring inter?ttingly interconnected with said components
in position holding the same in rocking engagement and
20 normally urging one component turningly in one direc
tion on the other, one of said sheets having a portion
bent to form a convex semi-cylindrical bearing portion
and a spring mounting slot opening in a direction facing
through an angle of the order of 180° to form a U
shaped trough having spaced walls 43 and 44 de?ning
the slot 37, then bending the trough wall 44 through an
angle of the order of 90° with respect to the body of the
sheet metal piece while outwardly curving the terminal
edge of the base remote trough wall 43 to form the quar
fer-cylindrical surface 39 at the terminal end of the trough
forming ?ange.
It will be seen from the foregoing that the component
13 may be applied to the component 15 with the abutment
surfaces 41 and 42 in facing engagement and with the
semi-cylindrical surface 33 in engagement with the quar
25
oppositely from said convex bearing portion, the other
sheet being bent to form a concave bearing portion for
sliding movement on said convex portion and a spring
mounting slot opening in a direction facing oppositely
from said concave portiomsaid spring comprising a strip
of resilient material formed with 1a pair of spaced, oppo
sitely extending edge ?anges for inter?tting engagement
in said slots and an intermediate portion in position to‘
extend around and cover the bearing portions.
ter-cylindrical bearing surface 39. It will be seenvalso
2. A binge comprising a pair of cooperating bearing
that the component 13 may be turned on the component
components formed for relative rocking movement, the -
15 by sliding the quarter-cylindrical bearing surface 39 35 one upon the other, and a spring inter?ttingly iutercon~
nected with said components in position holding the same
upon the semi-cylindrical surface 33, such movement
in rocking engagement and normally urging one compo
causing the abutment surface 41 to turningly separate
nent turningly in one direction on the other, said hinge
from the abutment surface 42 in the manner indicated in
components comprising sheet metal parts each having an
dotted lines in FIG. 3.
In order to retain the hinge components 13 and 15 in 40 end portion bent over upon the body of the part to form a
spring mounting slot, between said bent-over end portion
operative engagement and to yieldingly urge the same
and the facing portion of the body, said bent-over portion
toward the limit position determined by engagement of the
forming a convex bearing surface on one component and
abutment surfaces 41 and 42, the spring 17 may conveni
a cooperating concave surface on the other, said spring
en?y comprise a strip of resilient sheet metal having
comprising a strip of resilient material formed with spaced
thickness of the order of 0.007", the strip being bent on
?anges for inter?tting engagement in said slots.
spaced apart, parallel and longitudinally extending bend
3. A ihinge comprising a pair of cooperating bearing
lines 45 to provide a trough embodying a bottom wall 47,
components formed for relative rocking movement, the
a side wall 49 of desired height and a substantially higher
one upon the other, and a spring inter?ttingly intercon
side wall 51, said side walls preferably extending in spaced
nected with said components in position holding the same
apart parallel planes normal to the bottom wall 47 and
in rock-ing engagement and normally urging one compo
being joined thereto by connecting portions having a radius
nent turningly in one direction on the other, a said hinge
of curvature of the order of 0.03". The terminal edge
component comprising a sheet metal part having an end
portions of the higher trough wall 51 may be bent there
portion bent over upon the body of the part to form a
from through an angle of the order of 180° in order to
form {a Ire-entrant ?ange 53 extending within the trough in 55 spring mounting slot, between said body and the bent-over
end portion, and convex semi-cylindrical bearing sur
position between and parallel with respect to the spaced
face centered on a line extending at the bottom of said
apart side walls 49 and 51 of the trough, said re-entrant
slot, the other component having a concave bearing por
?ange being connected with the side wall 51 by a prefer
ably semi-cylindrically curved connecting portion 55.
tion for sliding engagement on said convex surface and a
It will be seen from the foregoing that the opposite 60 spring mounting slot opening in a direction facing away
edge portions of the strip of material which forms the
spring 17 respectively form the ?anges 49‘ and 53, the
terminal ends of which face in opposite directions. The
from said' bearing portion, said spring comprising a strip
of resilient material formed with spaced ?anges for inter
?tting engagement in said slots.
-
4. A hinge comprising a pair of cooperating bearing
end of the ?ange 53 is spaced from and ‘faces toward the
bottom wall 47 of the trough. The terminal end of the 65 components formed for relative rocking movement, the
one upon the other, and a spring inter?ttingly intercon
?ange 49 faces away from said bottom Wall 47. The
nected with said components in position holding the same
spring 17 is thus sized and con?gurated so that the ?anges
in rocking engagement and normally urging one compo
49 and 53 may inter?t respectively in the spring mount
nent turningly in one direction on the other, a said hinge
ing slots 37 and 31 of the hinge components 13- and 15,
the spring 17 being so con?gurated that it may readily be 70 component having a convex semi-cylindrical bearing sur
face and a spring mounting slot opening in a direction
assembled in inter?tting relationship on the components
facing away from said bearing surface, the other compo
13 and 15, when the same are in the relatively closed
nent comprising a sheet metal part having an end portion
position determined by engagement of the abutments 41
bent over the body of the part to form a spring mounting
and 42, merely by alining the spring ?anges 49 and 53
respectively with the seating slots 67 and 31, at one end 75 slot between said body and the bent-over end portion, the
3,088,162
5
6
;terminal edge portion of said bent-over end portion being
ient material shaped as a channel having one side wider
1‘ pylindrically curved for sliding engagement on said convex
than the other, the outer portions of the wider side being
surface, said spring comprising a strip of resilient material
formed with spaced ?anges for inter?tting engagement in
bent inwardly and disposed re~entrantly within said chan
nel between and in spaced parallel relation with respect
4
? said slots.
5. A hinge comprising a pair or" cooperating bearing
components formed ‘for relative rocking movement, the
to the narrower side and the base of the wider side, said
narrower side and the re-entrantly disposed outer portions
of the wider side being respectively mounted in said oppo
one upon the other, and a spring inter?ttingly intercon
nected with said components in position holding the same
in rocking engagement and normally urging one compo
sitely facing slots.
nent turningly in one direction on the other, a said hinge
one upon the other, ‘and .a spring inter?ttingly intercon
nected with said components in position holding the same
in rocking engagement and normally urging one compo
nent turningly in one direction on the other, said hinge
7. A hinge comprising a pair of cooperating bearing
components formed for relative rocking movement, the
component comprising a sheet metal part having an end
portion bent over upon the body of the part to form a
spring mounting slot, between said body and the bent-over
end portion, and a convex semi-cylindrical bearing sur 15 components comprising sheet metal parts each having an
end portion ‘bent over upon the body of the part to form
face centered on a line extending at the bottom of said
a spring mounting slot between said bent-over end por
slot, the other component comprising a sheet metal part
tions and the vfacing portions of the body, said 1bent~over
having an end portion bent over upon the body of the
portions forming a convex bearing surface on one com
ponent, a cooperating concave bearing surface on the
part to form a spring mounting slot between said body
and the bent-over end portion, the terminal edge portion
of said bent-over end portion being cylindrically curved
for sliding engagement on said convex surface, said
spring comprising a strip of resilient material formed
other ‘component, the open sides of said slots facing in
opposite directions, said spring comprising a strip of resil
ient material ‘shaped as a channel having one side wider
with spaced ?anges for inter?tting engagement in said
slots.
25
6. A hinge comprising a pair of cooperating bearing
components formed for relative rocking movement, the
one upon the other, and a spring inter?ttingly intercon
nected wtih said components in position holding the
same in locking engagement and normally urging one 30
component turningly in one direction on the other, one
of said components ‘having a convex semi-cylindrical bear
ing portion and a spring mounting slot opening in a direc
tion facing away from said convex bearing portion, the
other component having a concave portion for sliding 35
movement on said convex portion and a spring mounting
slot opening in a direction facing ‘away from said con
cave portion, the open sides of said slots facing in
opposite directions, said spring comprising a strip of resil
than the other, the outer portions of the wider side being
bent inwardly and disposed re-entrantly within said chan
nel between and in spaced parallel relation with respect
to the narrower side and the base of the Wider side, said
narrower side and the re-entrantly disposed outer portions
of the wider side being respectively mounted in said
oppositely facing slots.
References Cited in the ?le of this patent
UNITED STATES PATENTS
104,252
306,402
1,086,423
v1,632,459
Bidwell ______________ u- June 14,
Johnston ____________ __ Oct. Il4,
Ublig ________________ __ Feb. 10,
Van Valkenburg ______ __ June 14,
1870
1884
1914
1927
2,742,665
Stopek _______________ __ Apr. 24, 1956
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