U.S. patent number 3,892,011 [Application Number 05/472,109] was granted by the patent office on 1975-07-01 for bundling strap with self-contained severing means.
This patent grant is currently assigned to Thomas & Betts Corporation. Invention is credited to Stephen J. Kohke.
United States Patent |
3,892,011 |
Kohke |
July 1, 1975 |
Bundling strap with self-contained severing means
Abstract
The head portion of a bundling strap is provided with severing
means encompassing a strap body receiving aperture extending
transversely through the head portion, said severing means having a
sharpened blade partially restricting the head portion aperture
opening to enable the excess portion of the strap body extending
beyond the head portion to be severed from the remainder thereof by
urging the strap body against the sharpened blade. The sharpened
blade may comprise either a continuous edge or selected elements of
predetermined length extending inwardly from the periphery of the
strap head portion and located preferably generally adjacent or
coincident with one face of the head portion to permit the strap
body portion to be severed at a position generally flush with the
adjacent face of the head portion. An obliquely angled, inwardly
protruding leg portion extending from the inner surface of the
severing means may be provided to lockingly engage the strap body
portion within the apertured head portion of the bundling
strap.
Inventors: |
Kohke; Stephen J. (Bridgewater
Twsp., NJ) |
Assignee: |
Thomas & Betts Corporation
(Elizabeth, NJ)
|
Family
ID: |
23874240 |
Appl.
No.: |
05/472,109 |
Filed: |
May 22, 1974 |
Current U.S.
Class: |
24/16PB;
30/165 |
Current CPC
Class: |
B65D
63/1036 (20130101); Y10T 24/1498 (20150115) |
Current International
Class: |
B65D
63/10 (20060101); B65D 063/00 (); B26B
027/00 () |
Field of
Search: |
;30/165,127,278,301
;24/9PR,9W,73PB,3.5P,17AP,26A,16PB ;248/68,71,73,74PB |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Griffin; Donald A.
Attorney, Agent or Firm: Teschner; David Woldman; Jesse
Claims
The embodiments of the invention in which an exclusive property or
privilege is claimed are defined as follows:
1. An improved bundling strap comprising: a head portion, a tail
portion, and an elongate body portion therebetween; said head
portion having an aperture extending therethrough for receiving
said body portion; locking means for restricting removal of said
body portion from said head portion; and severing means coupled to
said head portion and having a sharpened blade cooperative with
said head portion aperture for severing said strap body portion
thereat, said severing means comprising a metallic sleeve having a
wall portion seated within said head portion aperture.
2. An improved bundling strap as defined in claim 1 wherein said
sharpened blade is disposed generally normal to the plane of said
wall portion.
3. An improved bundling strap as defined in claim 2 wherein said
sharpened blade extends inwardly from the periphery of said wall
portion.
4. An improved bundling strap as defined in claim 3 wherein said
sharpened blade comprises a continuous inner edge disposed adjacent
one end of said head portion aperture.
5. An improved bundling strap as defined in claim 3 wherein said
sharpened blade comprises at least two discrete inner edges
disposed adjacent one end of said head portion aperture.
6. An improved bundling strap as defined in claim 3 wherein said
locking means comprises a leg portion extending from said wall
portion inwardly towards the interior of said severing means for
engaging said strap body portion upon the insertion of said strap
body portion through said head portion aperture.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention is directed to the field of severing devices for use
with bundling straps and the like.
2. Description of the Prior Art
Bundling straps, according to the prior art, generally comprise an
elongate resilient member having a body portion extending from an
enlarged head portion suitably apertured to receive the body
portion therethrough so that the body portion may be looped about
an article such as a bundle of wires, or the like, and drawn
through the aperture in the head portion to provide a restraining
loop about such article. The excess length of the body portion
extending beyond the face of the head portion is generally severed
from the remainder of the body portion so as to provide a neat,
unencumbered appearance, and to prevent interference with adjacent
elements or members situated within the locality of the wire
bundle. To accomplish the severing operation, the operator is
required to have available separate cutting devices of one form or
another which may comprise plier-like tools, or shearing blades
incorporated within a relatively expensive strap tightening and
cutting device which may not be readily available to the operator.
In cases where a knife is employed to sever the strap, extreme
caution must be exercised to prevent serious injury to the operator
and to prevent damage to the article being bundled, which, in the
case of a wire harness, may include damage to the wire insulation
and associated components attached thereto.
SUMMARY OF THE INVENTION
The invention overcomes the limitations and difficulties noted
above with respect to prior art devices by providing severing means
selectively incorporated within the head portion of a bundling
strap to provide an arrangement more versatile, convenient,
efficient, and safer than such prior art devices. In a preferred
embodiment, a sharpened blade extends inwardly from the periphery
of a metallic sleeve which is fitted within the transverse aperture
of the head portion of a bundling strap so that upon insertion of
the strap body portion through the head portion of the strap the
excess portion of the strap extending beyond the face of the head
portion may be removed from the remainder of the strap simply by
twisting or otherwise urging the extending portion of the strap
against the blade edge sufficiently to cause the severance thereof.
The sharpened blade may be located coincident with the adjacent
face of the head portion so that the exposed severed strap end is
flush with the head portion face and free of bothersome or
dangerous protuberances extending therebeyond. The severing blade
may comprise an unbroken continuous inner edge or may be formed as
discrete blade segments selectively disposed about the periphery of
the metallic sleeve so as to provide a predetermined direction of
twist for severing the excess portion of the strap body from the
remainder thereof. There may also be provided a leg portion
extending obliquely from the wall portion of the metallic sleeve
towards the interior thereof to provide locking means for engaging
the strap body portion contained within the head portion of the
strap. It is therefore an object of this invention to provide an
improved bundling strap.
It is another object of this invention to provide means
incorporated within a bundling strap for conveniently removing the
excess portion of the strap body from the remainder thereof.
It is a further object of this invention to provide a metallic
sleeve engageable with the head portion of a bundling strap to
permit selective severance thereof.
Other objects and features will be pointed out in the following
description and claims and illustrated in the accompanying
drawings, which disclose, by way of example, the principle of the
invention and the best mode contemplated for carrying it out.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
FIG. 1 is a fragmentary side elevational view, partly cut away and
partly in section, showing a bundling strap incorporating therein
severing means constructed in accordance with the concepts of the
invention.
FIG. 2 is a perspective view of the severing means employed in the
device of FIG. 1.
FIG. 3 is a fragmentary perspective view, partly cut away and
partly in section, showing use of the severing means employed in
the device of FIG. 1.
FIG. 4 is a side elevational view, in section, of another
embodiment of severing means constructed in accordance with the
concepts of the invention.
FIG. 5 is a front elevational view partly cut away, and partly in
section, of the device shown in FIG. 4.
FIG. 6 is a side elevational view, in section, of yet another
embodiment of severing means constructed in accordance with the
concepts of the invention.
FIG. 7 is a front elevational view of still a further embodiment of
severing means constructed in accordance with the concepts of the
invention.
FIG. 8 is a front elevational view of still another embodiment of
severing means constructed in accordance with the concepts of the
invention.
FIG. 9 is a side elevational view, in section, of yet a further
embodiment of severing means constructed in accordance with the
concepts of the invention.
FIG. 10 is a fragmentary front elevational view of the head portion
of a bundling strap incorporating still another embodiment of
severing means constructed in accordance with the concepts of the
invention.
FIG. 11 is a fragmentary side elevational view, in section, taken
along the line 11--11 of FIG. 10.
Similar elements are given similar reference characters in each of
the respective drawings.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Turning now to FIGS. 1, 2, and 3 there is shown a bundling strap 20
incorporating a severing means 22 constructed in accordance with
the concepts of the invention. The severing means 22 comprises a
sharpened blade portion 24 extending inwardly from the periphery of
a wall portion 26 of the severing means 22 adjacent one end
thereof. The blade portion 24 may comprise an inwardly turned
flanged portion 28 suitably formed so as to provide a sharpened
edge 30, as shown more clearly in FIG. 1. The wall portion 26 is
suitably dimensioned so as to seat tightly within an aperture 32
extending through a head portion 34 of the bundling strap 20. The
aperture 32 comprises a first portion 36 preferably slightly larger
than the strap body 44 and a second portion 38 dimensionally larger
than the first portion 36. The sharpened edge 30 of the severing
means 22 is arranged to extend inwardly from the wall portion 26 of
the severing means 22 so as to provide an opening thereat generally
equivalent to the opening provided by the first portion 36 of the
aperture 32, thereby at least partially simulating a uniform
opening at each end of the head portion 34 of the bundling strap
20. A blade-like member 40 is inserted within the head portion 34
of the bundling strap 20 and comprises a free end 42 adapted to
engage the strap body portion upon its insertion through the
aperture 32, after being looped about an article such as a bundle
of wires or the like, to prevent disengagement of the strap body
portion from the head portion 34 of the bundling strap 20. The
member 40 thus provides locking means for the strap body portion 44
of the bundling strap 20 in a manner well known to those skilled in
the art. In use, as illustrated in detail in FIG. 3, the severing
means 22 provides a simple, rapid, and economical means for
removing the excess portion of the strap body 44 extending beyond
the head portion 34 of the bundling strap 20 by the simple
expedient of looping the strap body about an article to be bundled,
advancing the strap body 44 through the head portion aperture 32 to
the desired tightness, and then twisting or otherwise urging the
excess portion of the body portion 44 which extends beyond the head
portion 34 in the direction shown, for example, by the arrow 46 so
as to cause the body portion to be urged against the edge 30
sufficiently to effect complete severence of the excess body
portion 44 from the remainder thereof. In this manner, selective
severance of the strap body portion 44 is achieved in one safe,
rapid, and simple operation without the need for external blades,
tools, or other cutting implements. Although the embodiment
illustrated in FIG. 2 permits rotation of the strap body portion 44
in either direction to accomplish the aforedescribed severing
action, the blade portion of the severing means may be modified as
shown, for example, in FIGS. 7 and 8 where the sharpened blade
portion 24 shown in FIG. 2 is modified to provide discrete
segments, such as, 48 and 50 in FIG. 7, and 52 and 54 in FIG. 8. In
the arrangement illustrated in FIG. 7, severing is accomplished by
rotating or twisting the strap body portion counterclockwise
approximately 180.degree. as viewed in FIG. 7, in a direction
indicated by the arrows 56, 56', so as to urge the lower left edge
of the strap body portion 44 against the corresponding edge of the
sharpened blade segment 48 while at the same time urging the upper
right hand portion of the strap body portion 44 against the
sharpened edge of the blade segment 50. As will be noted, each of
the segments 48 and 50 extend transversely across the opening of
the head portion aperture 32 to an extent slightly greater than
half the length thereof to insure complete severance of the body
portion 44 at the desired area. The reverse of this embodiment is
illustrated in FIG. 8 wherein the body portion 44 is rotated
clockwise, as viewed in FIG. 8, in a direction indicated by the
arrows 58, 58', again through an arc of approximately 180 degrees,
so that the upper left hand portion of the strap body portion 44 is
caused to engage the adjacent edge of the blade segment 52 while
the lower right hand portion of the body portion 44 is brought into
engagement with the blade segment 54. It will of course be clear
that the rotation of the strap body portion in a direction contrary
to that shown by the arrows in each of the specific embodiments
illustrated in FIGS. 7 and 8 will cause only a partial severing of
the strap body portion as heretofore described, since the arc
through which the strap body portion is rotated is generally devoid
of any sharpened edge for the severing thereof. In this manner
there is thus provided a unidirectional rotational feature which
may be coordinated with a particular strap design so that,
according to the cross-sectional configuration of the strap, a
preferred direction of severance may be indicated. For example, the
strap body portion of the bundling strap 20 may have provided
therewith a series of transverse notches (not shown) along one edge
adapted to be engaged by the severing means at selected
predetermined locations, while in the embodiment illustrated in
FIG. 2, severing of the strap body portion may be accomplished at
any desired location therealong. It should, of course, be clear
that a notched configuration as heretofore described is not
necessary to accomplish the severing operation, but may be provided
to assist the operator in more readily separating selective
segments of the strap body portion from the remainder thereof.
Turning now to FIGS. 4 and 5 there is shown a further embodiment of
a severing means 60 constructed in accordance with the concepts of
the invention. The severing means 60 may be formed essentially as
illustrated and described heretofore with respect to the
embodiments illustrated in FIGS. 2, 7, and 8, but further
incorporates a leg portion 62 extending inwardly from a wall
portion 64 at an oblique angle to the longitudinal axis of the
severing means 60 to provide locking means essentially similar to
that described heretofore with respect to the element 40
illustrated in FIG. 1. Thus, by utilizing the embodiment
illustrated in FIGS. 4 and 5, the member 40 may be eliminated and
the leg portion 62 substituted therefor.
Turning now to FIG. 6, there is shown a severing means 63 having
only the lower portion of an inturned flange 65 sharpened as at 66
to further control the manner in which the excess portion of the
strap body portion 44 is severed from the remainder thereof.
Referring now to FIG. 9, a severing means 68 is provided with a
wall portion 70 having an indented portion 72 arranged to be
positioned along a transverse axis generally coincident with the
locking means comprising either the member 40 illustrated in FIG. 1
or the leg portion 62 illustrated in FIGS. 4 and 5, to further
restrict the opening provided by the interior surface of the wall
portion 70 so that upon rotation of the body portion of the
bundling strap against the sharpened blades of the severing means
68, lateral movement of the portion of the strap body portion
engaged by the locking means 40 or 62 is sufficiently restricted to
prevent it from being disengaged therefrom during this
manipulation.
Turning now to FIGS. 10 and 11, the severing means may comprise
elemental sharpened blade members 74 and 76 each having an
extension 78 and 80, respectively, seated within respective slotted
portions 82 and 84 extending transversely through a head portion 86
of a bundling strap 88 so that the blade member edges 90, 92
communicate with the head portion aperture 94 generally adjacent
the face 96 thereof. Each of the blade edges 90, 92 are of
sufficient length to insure complete severance of the strap body
portion during the twisting operation and, although shown as
encompassing only selected portions of the upper and lower areas of
the head portion aperture 94, may be suitably extended so that each
blade edge encompasses substantially one half of the total
periphery of the opening defined by the aperture 94. It will be
evident that the arrangement illustrated in FIGS. 10 and 11 may be
modified whereby each of the blade members 74 and 76, rather than
being provided with offset extensions such as 78 and 80, may each
be provided with a shoulder portion (not shown) generally coplanar
with its respective blade member and the shoulder portion fastened
directly to the face 96 of the head portion 86.
It will also be apparent to those skilled in the art that the
embodiments heretofore described which have been illustrated as
being formed essentially as eyelet-like integral members may, of
course, comprise one or more separate blade members suitably
attached to the wall portion of the severing means by, for example,
bonding, brazing, riveting, press fitting, or other suitable
joining methods.
* * * * *