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Патент USA US3066976

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Dec. 4, 1962
3,066,966
w. E. ATKINSON
SNAPBOLT
jled Aug. 15, 1960
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INVENTOR
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United States Patent 0 "
1
3,066,966
§NAPBOLT
Wailace E. Atkinson, Petersburg, Va, assignor to Long
Manufacturing Company, inc, Petersburg, Va., a cor
poration of Virginia
Filed Aug. 15, 1960, Ser. No. 49,5§2
2 Claims. (Cl. 292-—246)
3,t}66,966
Patented Dec. 4, 1962
2
and a keeper post therethrough wherein one leg or side of
the loop projects through the body to form a hinge con
nection therewith, thereby avoiding the weakening asso
ciated with trunnion hinge connections,
Another object of the present invention is the provision
of a novel snapbolt construction of the character de
scribed in the preceding paragraph, wherein the spring
housing body is a raised box-like member having a bend
able tongue forming an extension of the front wall thereof
The present invention relates to snapbolts or catches
10 which may be readily bent over and rearwardly of the
for luggage, trunks, dispatch cases and like containers.
hinge bar-forming leg of the loop when the latter is
Heretofore, snapbolt or catch assemblies of the class
nested in the hinge recesses of the body to retain the
to which the present invention relates as customarily
snapbolt components in assembled condition.
constructed have included a keeper unit to be secured
Other objects, advantages, and capabilities of the
to the front of the lower section or bottom of luggage
present
invention will become apparent from the follow
adjacent the plane of separation between the bottom and
ing detail description, taken in conjunction with the
hinged cover section having a raised or outwardly pro
accompanying drawings illustrating a preferred embodi
jecting tongue or post, and a hasp or bolt unit secured
to the front of the hinged cover section having a generally
ment of the invention.
In the drawings:
box-shaped raised body or spring housing which projects
outwardly from the front of the luggage cover and en
cases a spring and a U-shaped hasp, having legs and
a connecting bridge ‘or cross-piece adapted to encircle
three sides of the raised body, the legs being pivotally
hinged to the raised body by means of trunnions located
near the upper ends of the legs and projecting inwardly
FIGURE 1 is a perspective view of a snapbolt con
structed in accordance with the present invention, shown
in mounted position on fragmentary portions of a suit
case;
FEGURE 2 is an exploded ‘perspective view of the
snapbolt;
FIGURE 3 is a rear elevation thereof; and
FIGURE 4 is a vertical section view thereof, taken
into accommodating recesses in the raised body. A re
curved leaf spring nested within the raised body bears
against the end portions of the trunnions projecting into
the interior chamber of the body, and the trunnions are
so shaped in cross-section to interact with the spring and
progressively compress the same through a portion of the
Opening arc of the hasp to resiliently bias the hasp to fully
along the line 4-4 of FIGURE 3.
Referring to the drawing, wherein like reference char
acters designate corresponding parts throughout the sev
eral ?gures, the snapbolt assembly of the present inven
tion indicated generally by the reference character 10
comprises a keeper member 11 stamped from sheet metal
closed ‘or fully open position. The bridge or cross-piece
including a mounting plate portion '12 having a front
is spaced su?iciently from the trunnions and the ad 35 wall 13 and peripheral, inwardly directed flanges 14 to
jacent end or bottom of the raised body to de?ne a socket
space the front wall 13 appropriately from the front of
for the reception of the keeper tongue or post.
the associated lower suitcase section 15 and give an
While this has been the usual construction of such
attractive massive appearance to the keeper member,
snapbolts for many years, this construction has several
and a raised keeper post portion 16, here shown to be
well-recognized disadvantages. Because of the separa
of generally rectangular con?guration which is integral
tion between the upper ends and trunnion-bearing por—
with the front wall 13 of the mounting plate portion ‘12
tions of the U-shaped hasp, the hasp stamping or casting
and has a bottom wall 17, side walls 18 and a top wall
is inherently weak in this region and gives rise to fre
19 terminating at its inner edge in an upwardly project
quent failure or breakage of the catch when subjected
tongue or extension 19a.
to the stresses to which the devices are subjected during 45 ingThe
hasp of bolt unit, generally designated by the ref
use of the luggage. Also, such a construction presents
erence character 21, is designed to be mounted on the
di?icult problems in manufacture, as the legs of the hasp
hinged cover lid 20 of the suitcase, and comprises a
must be spread apart sufficiently to permit the full width
raised, box-like housing or body portion 22- stamped from
of the raised body to be passed upwardly between the
sheet metal and having a generally rectangular con?gura
adjacent ends of the trunnions until the trunnions are in 50 tion including sides 23 and a bottom 24. A pair of op
registry with the recesses in the sides of the raised body,
positely projecting mounting panel portions 25 and 26
and then these ends of the hasp legs must be forced
extending in laterally ?anking relation from the sides 23
toward each other to project them into the recesses.
of the body portion and includes front walls 27 and
These steps obviously complicate the assembly process
and consume time.
An object of the present invention is the provision of
peripheral, inwardly projecting flanges 28. The bottom
55 24 of the raised body portion 22 includes a recess 29
conforming to the cross-section of the keeper post tongue
a novel snapbolt construction which is free of the above
described disadvantages characteristic of prior art con
structions.
Another object of the present invention is the provi
sion of a novel snapbolt construction having a raised
19a and the upper ends of the sides 23 are recessed or
cut away as indicated at 30 to form hinge recesses for
60
the hinge joint with the ‘hasp 31.
The hasp 31 in the preferred embodiment herein illus
trated is in the form of a closed, rectangular loop gen
spring housing body and a resiliently biased hasp hinged
erally resembling a buckle and includes vertical side legs
thereto having a pair of vertical legs and a lower, inter
32, 33 spaced apart a sufficient distance to accommodate
connecting bridge portion to extend about the sides and
the
raised body portion 22 therebetween, a bottom cross
bottom of the raised body and provide a socket for the 65
piece or keeper-engaging bar 34 spanning between the
reception of a keeper post, and an uninterrupted hinge
lower ends of the side legs 32, 33 and. a top bar 35
bar spanning the tops of the legs to extend through the
paralleling the bottom bar 34 and connecting the upper
raised body and form the hinge connection therewith.
ends of the legs 32, 33. The outer peripheries of the
Another object of the present invention is the provi
sion of a novel snapbolt construction having a raised 70 legs 32, 33 and the lower peripery of the bottom bar 34
are provided with inwardly directed ?anges to give an
spring housing body and a resiliently biased hasp hinged
appearance of massiveness to the hasp, which is stamped
thereto in the form of a closed rectangular loop providing
from thin sheet metal. The top bar 35, however, is of
an eye for the reception of a portion of the housing body
3,066,966
simple rectangular cross-section having considerably
greater width in the general plane of the hasp than thick
mess to form a hinge bar for the hasp.
The raised body. portion also includes a bendable
tongue or extension 36 which in the original stamping
extends upwardly from the top edge of the front wall 37
of the raised body portion 22 and may be of substantially
the'width of the front wall 37 over at least the immedi
ately adjoining portion of the extension. This bendable
4
container sections comprising a keeper member adapted
to be aiiixed to one of said sections having a raised keeper
post, a hasp assembly adapted to be a?ixed to the other
of said sections to interlock said keeper post, said hasp
assembly comprising a sheet metal mounting member
including a raised box-like body portion having a front
wall, a bottom wall, and side walls defining a rearwardly
. opening spring housing chamber and a bendable tongue
' joined to the top of said front wall and forming an inte~
tongue 36 serves as the top wall of the raised body por 1O gral extension thereof, a sheet metal hasp member in the
tion 22 in the assembled structure to retain the hasp 31
form of closed loop having an eye bounded by an unin
in assembled condition and additionally extends down
terrupted frame including a top bar of the loop, said side
walls of said raised body portion having upwardly open
the raised body portion to maintain the other components
ing means therein for removably receiving the top bar of
in assembled relation.
15 said hasp member when said bendable tongue extends up
The hasp unit is assembled by simply passing the eye
wardly from said front wall to support said top bar for
38 of’ the hasp 31 over the tongue 36 and ?tting the
pivotal movement about a hinge axis, a bighted leaf
top bar portion 35 of the hasp 31 into the recesses 30
spring having front and rear upwardly projecting legs
provided at the upper ends of the side walls 23. A
at least a portion of the back of the chamber de?ned with
seated within said spring housing chamber with its bight
recurved leaf spring 39 is then seated in the chamber pro
vided by the raised body portion 22 and the bendable
tongue 36 folded rearwardly over the top of the top bar
35 of the hasp and downwardly behind the leaf spring
33 to secure the leaf spring between the tongue 36 and
front Wall 37. The leaf spring 39 has a front leg 44)
terminating in a lip 41 to ‘bear against the rear of and
lap over the top bar 35 of the hasp 31 and a rear leg
portion abutting said bottom wall and its front leg hear
ing against said top bar to resiliently restrain the hasp in
a catch position, and said bendable tongue being bent
rearwardly over said top bar and downwardly against the
rear leg of said spring to embrace said spring and con
?ne said top bar and said spring in assembled relation in
said hasp assembly.
2. A snapbolt assembly for holding together mating
container sections comprising a keeper member adapted
42 joined to the front leg by the downwardly disposed
bight 43 resting against the bottom wall 241 of the raised
body portion 22. Due to the greater Width of the top 30 to be affixed to one of said sections having a raised keeper
post, a hasp assembly adapted to be affixed to the other
hasp bar 35 relative to its thickness, the front leg iii} of
of said sections to interlock said keeper post, said hasp
the leaf spring 39 will be forced rearwardly as the hasp
assembly comprising a sheet metal mounting member in
is pivoted outwardly and upwardly from its closed or
cluding a raised box-like body portion having a front
catch position until the hasp or bar 35 passed beyond per
wall,
a bottom wall, and side Walls de?ning a rearwardly
pendicular relation to the front face of the raised body
opening spring housing chamber and a bendable tongue
portion 22 whereupon the leaf spring 39 will urge the
joined to the top of said front wall and forming an integral
hasp to the fully open or release position indicated by
extension thereof, a loop-like sheet metal hasp member
broken lines in FIGURE 4. When the hasp 31 is below
pivotally supported along a horizontal hinge axis of said
the perpendicular or center position in its opening or
body portion having spaced legs depending from
closing arc, the leaf spring will resiliently bias the hasp 40 raised
said hinge axis joined at their lower ends by an integral
to fully closed position wherein the eye 38 will pass over
bridge portion, said hasp member being swingable to a
the keeper post 16 and the lower bar 34 extending below
position wherein said body portion, said legs and said
the keeper post will retain the keeper and hasp units
‘bridge jointly frame said keeper post when the latter is
against movement away from each other.
near said body portion, said hasp member including a top
45
Both the keeper and hasp units are to be a?ixed to the
bar integrally joined with the upper ends of said legs form
associated base and lid of the suitcase by suitable fasten
ing a closed loop therewith, said side walls of said raised
ing means such as the screws 44.
body portion having recesses for pivotally receiving said
It will be apparent that by virtue of the closed loop
top bar opening through an upper edge of said side walls
construction of the hasp 31 wherein the hinge bar 35
to removably receive said top bar by passage of the closed
forms an integral bridge between the upper end of the
loop of said hasp member over said bendabie tongue
side legs 32, 33, a much stronger construction is obtained
when the latter extends upwardly from said raised body
relative to prior art snapbolts having U-shaped hasps
portion and insertion of said top bar into said recesses, a
and trunnion hinge joints, thus providing a unit which
bighted leaf spring having front and rear upwardly pro
will have much longer life. Furthermore, this unit is
jecting legs seated within said spring housing chamber
far easier to assemble, as exposure and accessibility of
with its bight portion abutting said bottom wall and its
the recesses 30 and rear and top of the raised body por
front leg bearing against said top bar to resiliently re
tion 22 when the bendable tongue 36 in its initial position
strain said hasp member in catch position relative to said
permits the top hasp bar 35 to be readily ?tted into the
keeper
post, and said bendable tongue being deformed
recess 30, the hasp spring 39 to be inserted in the cham
rearwardly and downwardly to provide a top wall and a
60
ber de?ned by the raised body portion 22, and these
rear wall portion bounding said spring housing chamber
components secured in assembled condition by bending
to lap behind the rear leg and compress said spring for
the tongue 36 rearwardly and downwardly about them
con?ning said spring therein and retaining said top bar
to form a top wall and a portion of a rear wall of the
in said recesses.
raised body portion 22.
While but one specific embodiment of the present in
65
vention has been particularly shown and described, it is
apparent that various modi?cations may be made therein
Within the spirit and scope of the invention, and it is de
sired, therefore, that only such limitations be placed on
the invention as are imposed by the prior art and set 70
forth in the appended claims.
What is claimed is:
1. A snapbolt assembly for holding together mating
References Cited in the file of this patent
UNITED STATES PATENTS
1,122,211
2,715,541
Mann _______________ __ Dec. 22, 1914
Swanson ____________ __ Aug. 16, 1955
449,383
Great Britain _________ __ June 25, 1936
FOREIGN PATENTS
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