U.S. patent number 3,858,279 [Application Number 05/437,561] was granted by the patent office on 1975-01-07 for tightening and securing device for strapping.
This patent grant is currently assigned to Spanset Inter A.G.. Invention is credited to Lars Erik Brattstrom.
United States Patent |
3,858,279 |
Brattstrom |
January 7, 1975 |
TIGHTENING AND SECURING DEVICE FOR STRAPPING
Abstract
The invention relates to a lever device for tightening and
securing together two end portions of strapping. The device
comprises a pair of longitudinal side members interconnected in
spaced parallel relationship. An arm arranged adjacent one end of
the device is attached at its one end to one of the side members
and has its other free end disposed adjacent the other side member
so as to be engageable by a looped one end portion of the strapping
passed thereover. A first cross-member interconnects the side
members at that side of said arm adjacent said one end of the
device, a pair of second cross-members interconnect said side
members at that side of said arm remote from said one end of the
device and are engageable by the other end portion of the
strapping, and a pair of projections extend in opposed relationship
from respective side members to define a gap at or adjacent the
other end of the device. In use the device is engaged by the two
end portions of the strapping and the position of the device is
reversed so that the two end portions of the strapping are brought
together and overlapped to tension the strapping and secure the two
end portions together.
Inventors: |
Brattstrom; Lars Erik (Lund,
SW) |
Assignee: |
Spanset Inter A.G. (Basle,
CH)
|
Family
ID: |
9876736 |
Appl.
No.: |
05/437,561 |
Filed: |
January 29, 1974 |
Foreign Application Priority Data
|
|
|
|
|
Feb 27, 1973 [GB] |
|
|
9682/73 |
|
Current U.S.
Class: |
24/68F; 24/910;
24/200 |
Current CPC
Class: |
B65D
63/16 (20130101); Y10S 24/91 (20130101); Y10T
24/4093 (20150115); Y10T 24/2194 (20150115) |
Current International
Class: |
B65D
63/16 (20060101); B65D 63/10 (20060101); A44b
021/00 () |
Field of
Search: |
;24/71.3,200,68CD,68E,68F |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Hunter; H. Hampton
Attorney, Agent or Firm: Sughrue; Rothwell, Mion, Zinn &
Macpeak
Claims
What is claimed is:
1. A device for tightening and securing together two end portions
of strapping, comprising a pair of longitudinal side members
interconnected in spaced parallel relationship, an arm adjacent one
end of the device attached at its one end to one of the side
members and having its other free end disposed adjacent the other
side member so as to be engageable by a looped one end portion of
the strapping, a first cross-member interconnecting said side
members at that side of said arm adjacent said one end of the
device, a pair of second cross-members interconnecting said side
members at that side of said arm remote from said one end of the
device and engageable by the other end portion of the strapping,
and a pair of projections extending in opposed relationship from
respective side members to define a gap at or adjacent the other
end of the device, whereby in use, upon reversal of the position of
the device the two end portions of the strapping are brought
together and overlapped to tension the strapping and secure the two
end portions together.
2. A device according to claim 1, comprising a reinforcing member
interconnecting the side members at a position between the
projections and the said pair of second cross-members.
3. A device according to claim 1, wherein each side member is of
L-shaped section.
4. A device according to claim 1, formed from a single apertured
planar member a pair of opposed parallel edges of which are bent
over.
5. A device according to claim 4, wherein the arm is provided by
forming a U-shaped aperture in the planar member so that the two
limbs thereof extend perpendicular to the said parallel edges, and
bending the planar member along a line parallel to said parallel
edges which passes through the U-shaped aperture, whereby the
portion of the planar arm the free end of which is freely
accessible.
6. A device according to claim 3, wherein the side members are
tapered adjacent the said other end, and the arm and the
cross-members lie in a common plane, the projections extending from
the tapered portions of the side members and being spaced from the
said common plane.
7. A device according to claim 1, wherein the said one end thereof
is rounded.
8. A device according to claim 1, comprising a further cross-member
located adjacent and parallel to the said pair of second
cross-members.
9. A device according to claim 1, wherein the one of the pair of
second cross-members nearest to the arm is recessed, the recess
facing the arm.
Description
The present invention relates to a device for tightening and
securing strapping.
It is often impossible to firmly secure goods with strapping passed
therearound merely by manually pulling the strapping tight, and the
present invention seeks to provide a lever device with which
adequate tightening can be achieved simply and quickly.
According to the present invention there is provided a device for
tightening and securing together two end portions of strapping,
comprising a pair of longitudinal side members interconnected in
spaced parallel relationship, an arm adjacent one end of the device
attached at its one end to one of the side members and having its
other free end disposed adjacent the other side member so as to be
engageable by a looped one end portion of the strapping, a first
cross-member interconnecting said side members at that side of said
arm adjacent said one end of the device, a pair of second
cross-members interconnecting said side members at that side of
said arm remote from said one end of the device and engageable by
the other end portion of the strapping, and a pair of projections
extending in opposed relationship from respective side members to
define a gap at or adjacent the other end of the device, whereby in
use, upon reversal of the position of the device and two end
portions of the strapping are brought together and overlapped to
tension the strapping and secure the two end portions together.
A reinforcing member is preferably provided and interconnects the
side members at a position between the projections and the said
pair of second cross-members.
The side members are preferably of L-shaped section.
Embodiments of the present invention will now be described, by way
of example, with reference to the accompanying drawings, in
which:-
FIG. 1 shows a first embodiment of the present invention;
FIGS. 2, 3 and 4 illustrate the use of the first embodiment;
and
FIG. 5 shows the second embodiment of the present invention.
FIG. 1 shows a tightening and securinng device comprising two
parallel L-section side members 1 and 2 linked adjacent their one
ends by four cross-members 3, 4, 5 and 6 and having at their other
ends two opposed projections 7 and 8 which define a gap 9. A
reinforcing member 10 interconnnects the side members 1 and 2
intermediate their ends, and an arm 11 extends from side member 1
between cross-members 3 and 4 and terminates adjacent side member
2.
With reference to FIGS. 2, 3 and 4, in use one end 12 of a length
of strapping is coiled around cross-members 5 and 6 so that it
cannot slip therefrom when the strapping is tensioned. A plurality
of suitable coiling methods are available, only one of which is
illustrated. The strapping is then pulled hand-tight and its other
end 13 is formed into a loop and slid sideways over arm 11 whilst
the side members 1 and 2 lie substantially parallel to the ends of
the strapping.
The strapping is tightened by reversing the direction of the device
with respect to the ends 12 and 13 of the strapping. This is
achieved by moving the end of the device provided with the
projections 7 and 8 in a substantially semi-circular arc extending
from strapping end 12 to strapping end 13. The direction of this
movement is shown by the arrow in FIG. 4. After the movement is
completed, the strapping end 13 is passed through the gap 9 and the
device is thereby locked. The strapping can only be loosened by
passing it back through the gap 9.
The tightening effect achieved is substantially equivalent to a
shortening of the hand-tightened strapping by twice the distance
between cross-members 5 and the outer edge of cross-member 3. This
could be increased to twice the distance between the outer edges of
cross-members 3 and 6 by reversing the way that the strapping end
12 is wrapped around cross-members 5 and 6.
The cross-member 4 serves to separate the two ends 12 and 13 of the
strapping.
With reference to FIG. 5, a second tightening and securing device
is shown which comprises two parallel L-section side members 21 and
22 linked by three cross-members 23, 24 and 25 and supporting two
projections 26 and 27 which define a gap 28. A reinforcing member
29 links the side members 21 and 22 and an arm 30 arranged between
the cross-members 23 and 24 extends from side member 21 towards
side member 22. The cross-member 23 is bent over so as to form a
rounded edge 31 which in use is less likely to cause damage to the
strapping.
The ends of the side members 21 and 22 which support the
projections 26 and 27 are tapered so that in use strapping does not
have to be deflected from its naturally assumed straight position
when it is locked by being passed through the gap 28.
There is no equivalent member to cross-member 4 of the first
embodiment. The entanglement of the two ends of the strapping is
avoided by providing a recessed edge 32 on cross-member 24. This
recess prevents a loop of strapping which is being slid around arm
30 from catching on strapping looped around cross-member 24.
* * * * *