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Патент USA US3078548

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Feb. 26, 1963
R. A. BROWN
3,078,538
BUCKLE FOR SAFETY BELT AND THE LIKE
Filed June l, 1961
2 Sheets-Sheet 1
55
28
FIG. 4
32
56
INVENTOR.
BY
ROBERT
A. BROWN
"_ #5L/«J
his attorneys.
Feb. 26, 1963
R. A. BROWN
3,078,538
BUCKLE FOR SAFETY BELT AND THE LIKE
Filed June l, 1961
ì
2 Sheets-Sheet 2
55/
55
|2
64
INVENTOR.
ROBERT A. BROWN
his attorneys.
United States Patent‘ Office
3,078,538
Patented Feb. 26, 1963
2
1
The base plate bottom 12 is formed with a plurality, pref
erably four, rectangular latching openings 26 (FIGS.
6 and 7) spaced transversely of the plate. The side
3,078,538
BUCKLE FOR SAFETY BELT AND THE LIKE
Robert A. Brown, Rochester, N.Y., assignor to I-Iickok
Manufacturing Co., Inc., Rochester, NY., a corpora
flanges 14 are formed With guide openings or notches 2
(FIGS. 2 and 4) for a purpose hereafter described. The
bottom plate 12 ‘has a lug 30 struck upwardly therefrom
tion of New York
Filed June 1, 1961, Ser. No. 114,057
for a similar purpose. Plate 12 has a transverse opening
3 Claims. (Cl. 24-230)
32 (FIGS. 4 and 6) from which a flange 34 is inclined up
wardly for engagement and support by lugs 36 formed in
to buckles for connecting the ends of safety belts such 10 wardly from the side flanges 14. The side flanges are
as employed for occupants of airplanes and automobiles.
further formed with slots 38 inclined downwardly toward
An object of the invention is to provide an improved
flange 34. A cylindrical bar 40, preferably having a
roughened surface, has flattened ends 42 slidably mounted
buckle of the above type having a more reliable, practical
and convenient construction and mode of opera-tion.
in slots 38 for the attachment of one end of the belt, as
Another object is the provision of a construction which
further described hereafter.
l
facilitates the engagement with the buckle of an end of
The latch plate 44 (FIGS. l0 and 11) has. a plate
This invention relates to buckles and more especially
the belt to be secured.
shaped main portion 46 with upwardly turned lianges-48
' . '
at its opposite sides formed with elongated openings or
A further object is to supply an improved buckler of
vslots 50 for the reception of the spindle 18 on which it is
the above character embodying features of construction
insuring maintenance of connection with the buckle of 20 supported for limited pivoting about the spindle and move
ment transverse thereto. Plate portion 46 is formed in
the belt ends to be secured.
‘
.
wardly from its edge with openings 52 from the opposite
Still a further object is to provide a buckle having the
sides of which four latching fingers 54 are turned down
above advantages in a -construction requiring a minimum
for entry through openings in the belt fitting 55 hereafter
number of parts and more economical to manufacture
25 ldescribed and through the openings 26 in the base plate.
and assemble.
A torsion spring 56, of substantial and strong construc
To these and other ends the invention resides in cer
tion is coiled about spindle 18, with one end anchored in
tain improvements and combinations of parts, all as will
the slot 20 (FIG. 7) in the spindle and the other end
be hereinafter more fully described, the novel features
bearing against the latch plate portion 46 to move and
being pointed out in the claims at the end of the specifica
30
tion.
retain its fingers 54 in latching position (FIG. 7). Latch
FIG. 1 is a top plan view of a buckle embodying the
present invention in attachment to a belt and with the belt
plate flanges 48 are provided with slots 58 for the re
ception of inwardly projected lugs 60 on the side flanges of
a cover plate 62 hereafter described, by means of which
ends connected;
the raising of the cover plate swings the latch plate up
In the drawings:
`
~
35 ward-ly to release the latching fingers from the belt fitting
FIG. 2 is a side elevation;
hereafter described. The plate portion 46 has down
FIG. 3 is a section on the line 3-3 in FIG. 1, with
the belt ends connected;
FIG. 4 is a view similar to FIG. 3 but with the buckle
parts in position to release the end of -the belt;
FIG. 5 is a top plan view similar to FIG. 1 but with
part of the cover plate broken away to show the engage
ment of the latch p-late with the belt fitting and other
parts;
FIG. 6 is a section on line 6-6 in FIG. 3 showing the
engagement of the latch portions with the latching open
ings in the belt fitting and the base plate of the buckle;
FIG. 7 is a section on the line 7-7 in FIG. 5 show
wardly inclined camming lugs 64 between its latching
ñngers, for engagement by the forward edge of the belt
fitting 55 as it is inserted between the base and latch
40 plates, to facilitate initial lifting of the latch plate by the
forward edge of the belt fitting and so minimize the force
with which the latch plate must be raised against the
tension of spring 56 during insertion of the belt fitting into
its latched position. In latched position lugs 64 drop in
openings of the belt fitting so as to avoid any interference
with the full latching of the buckle.
Cover plate 62 is rectangular in shape, with downturned
ing the buckle parts in securing engagement with the belt
side flanges 66 having openings for reception of spindle
fitting;
18 on which it is pivotally mounted, and with a down
wardly curved rear edge in spaced relation above base
FIG. 8 is a view similar in part to FIG. 7 but showing
the belt fitting in course of Abeing inserted in the buckle;
plate portion 12. Flanges 66 are formed with lugs 60
showing the mounting in the ñanges of the base plate of
the spindle for supporting the latch and cover plates;
which engage in the slots 58 ofthe latch plate so that
lifting of the cover (FIG. 4) lifts the latch plate 44 to
release the belt fitting 55. The slotted openings 50 in
FIG. 10 is an elevation of the latch plate detached, as
viewed from the right in FIG. 7, and
FIG. 11 is an end view of the latch plate detached, as
flanges 48 of the latch plate facilitates lifting of the latch
plate to releasing position with a minimum 0f pivotal
movement and of releasing force.
FIG. 9 is a detailed section on the line 9_9 of FIG. 5
The belt fitting 55 is a plate formed in rear of its front
seen from the left in FIG. 10.
The invention is embodied in the present instance in 60 edge with rectangular openings y68, the front portions of
an assembled construction comprising a base plate shown
generally at 1t) with a bottom portion 12 of rectangular
plate shape having its edges at opposite sides thereof
formed to provide upwardly extending flanges 14 spaced
which come tinto registry with the latch openings 26 of
the base plate for the conjoint reception of the latching
fingers. Except for a central notch 70, the fitting has a
straightforward edge for engagement simultaneously with
apart a distance slightly wider than the belt 16. A cylin 65 all of the latching fingers. The notch 70 in its front
edge engages under a hook shaped lug 30 of the base
drical spindle 18 is mounted at its ends in openings in
plate, while lugs 72 at its opposite sides fit into notches
the ñanges 14 at a distance above the bottom plate 12.
28 in the side ñanges of the base plate, so as to guide
One end of the spindle is slotted inwardly from its end as
and maintain the belt fitting in aligned position on the
at 2t? (FIG. 9) and lugs 22 are turned inwardly from
the flange into the sides of the slot to hold the spindle 70 upper surface of the base plate portion 12.
In operation, as belt fitting 55 is inserted between the
against rotation. This end of the spindle is also formed
latch and 'base plates and pressed forwardly, its forward
with a circumferential groove 24 (FIG. 1) into which a
edge engages the rear edges of all of the plurality of latch
spring ring 26 is inserted to lock the spindle in place.
3,078,538
4
ing lingers and swings the latching plate upwardly, assisted
by the camming coaction of its edge and the inclined lugs
64 of the latch plate, to reduce the amount of force re
quired for locking engagement, the notches 58 of the
latching plate affording such movement without interfer
ence by or the raising of the cover plate 62, With con
tinued inward movement of the belt fitting, its latching
and having upstanding flanges at opposite sides thereof
parallel with and lying within said base plate flanges, a
belt plate for attachment to the other end of said belt for
insertion between said cover plate and base plate to
overlie the latter, said belt plate having a plurality of
laterally spaced openings therein for registry with said
base plate openings a latch plate loosely pivoted on
said spindle and having a plurality of latehing lingers
for engagement in said belt plate and base plate openings,
plate and with the latching fingers which snap through
all of the openings, positively locking the buckle in closed 10 spring means having one end fixed to said spindle and
its other end engaging said latch plate for moving said
condition and the belt ends together. Thereafter, by
latch plate to latching position, means connecting said
virtue of the slotted bearing of the latch plate on spindle
cover plate and latch plate flanges whereby said cover plate
18, the cover plate may be pivotally lifted to lift the
openings are brought into registry with those of the base
latch plate out of locking engagement, with a minimum
of pivotal movement and of the force required for such
disengagement.
may be raised to raise said latch plate and free said belt
plate for removal, said belt plate having a straight forward
edge for simultaneous engagement with said latching fin
gers and having a medial notch in said edge, a lug on said
It is apparent from the above description that the in>~
base plate for engagement over said belt plate edge in said
vention provides a construction comprising relatively few
notch thereof, there being notches in said base plate
parts, including but a single spring, all of substantial,
strong, and reliable- construction. The beltvíitting is in 20 flanges, and lugs on opposite sides of said belt plate for
engagement in said notches of said latch plate flanges for
serted into the buckle with a minimum of resistance, while
cooper-ation with said base plate lug to maintain said belt
maintained in alignment and guided by the side flanges
plate onV and parallel with said base plate and maintain
of the base plate. It is securely confined in latching
said latching fingers in engagement with said belt plate
position, not only by the latching fingers but also by its
and base plate openings under tension in said belt. ,
lateral lugs 72 in notches 28 and by the engagement of
the hook lug 30 over its front edge. The secure locking
of the parts is assured by a plurality of latching fingers
3. A buckle comprising a base plate formed with a
plurality of laterally spaced latch openings and having
upstanding flanges at opposite sides thereof, a spindle fixed
distributed across the buckle and for release the disen
at its ends’in said flanges, means on said base plate for
gagement of the parts is facilitated by the slotted bearing
30 securing a belt thereto, va cover plate pivotally mounted
of the latching plate on its spindle.
on said spindle in spaced relation to said base plate and
It will thus be seen that the invention accomplishes its
having upstanding ñanges at opposite sides thereof par
objects and while it has been herein disclosed by refer
allel with and lying within said base plate flanges, a belt
ence to the details of a preferred embodiment, it is to be
plate for attachment to the other end of said belt for
understood that such disclosure is intended in an illus
insertion between said cover plate and base plate to over
trative, rather than a limiting sense, as it is contemplated
lie the latter, said belt plate having a plurality of laterally
that various modifications in the construction and ar»
spaced openings therein for registery with said base plate
rangement of the parts will readily occur to those skilled
openings, a latch plate loosely pivoted on said spindle and
in the art, within the spirit of the invention and scope
having a plurality of latching fingers for engagement in
of the appended claims.
40 said belt plate and base plate openings, spring means hav
I claim:
ing one end fixed to said spindle and its other end en
1. A buckle comprising a base plate formed with a
plurality of latch openings spaced thereacross and having
upstanding flanges at opposite sides thereof, a spindle fixed
gaging said latch plate for moving said latch plate to
latching position, lugs on said cover plate flanges and there
being cooperating openings on said latch plate flanges
at its ends in said iianges, means on said base plate for 45
whereby said cover plate may -be raised to raise said latch
securing a belt end thereto, a cover plate movably mounted
plate and free said belt plate for removal, a plurality of
on said spindle in spaced 'relation to said base plate, and
inclined cam portions on said latch plate between said
having upstanding flanges at opposite sides thereof paral»
fingers thereof for engagement lby said belt plate during
lel with and lying within said base plate flanges, a belt
plate for attachment to the other end of said belt and 50 insertion thereof, to initiate movement of said latch plate
above the path of said belt plate, said belt plate having a
for insertion between said cover plate and base plate
straight forward edge for simultaneous engagement with
to overlie the latter, said belt plate having a plurality
of openings therein adapted for registry with said base
plate openings, a latch plate loosely pivoted on said
spindle and having a plurality of latch portions for en
gagement in said belt plate and base plate openings said
latch plate having upstanding flanges at opposite sides
said latching fingers and having a medial notch in said
edge, a lug on said base plate for engagement over said
belt plate edge in said notch thereof, there being notches
in said base plate iianges, and lugs on opposite sides of
said belt plate for engagement in said notches of said
latch plate lianges for cooperation with said base plate
thereof parallel with and lying within said cover plate
lug to maintain said belt plate'on and parallel with said
ñanges, spring means connected to said spindle and en»
gaging said latch plate for moving said latch plate to 60 base plate and maintain said latching fingers in engage»
ment with said belt plate and base plate openings under
latching position, a plurality of inclined camming por
tension in said belt.
tions between said latch portions of said latch plate for
engagement by said belt plate during insertion thereof
References Cited in the file of this patent
between said cover plate and base plate to initiate move~
ment of said latch plate above the path of said belt plate, 65
UNITED STATES PATENTS
lugs on said cover plate iianges and there being cooperat
2,710,999
Davis _______________ -_ June 21, 1955
ing openings on said latch plate ñanges whereby said
cover plate may be moved to move said latch plate and
release said "belt portion.
2. A buckle comprising a base plate formed with a 70
plurality of laterally spaced latch openings and having
upstanding ñanges at opposite sides thereof, a spindle
fixed at its ends in said ñanges, means on said base plate
for securing a belt thereto, a cover plate pivotally mounted
on said spindle in spaced relation to said base plate
2,803,864
2,846,745
2,876,516
2,893,088
2,896,284
Bishaf ______________ __ Aug. 27,
Lathrop _____________ __ Aug. 12,
Cummings ___________ _.- Mar. 10,
Harper _______________ _.. July 7,
Bishaf _______________ -_ July 28,
1957
1958
1959
1959
v1959
FOREIGN PATENTS
215,025
Australia _____________ _.- Mar. 7, 1956
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