CA1284573C - Device for strapping cables, pipes or other similar items, together or to supports - Google Patents
Device for strapping cables, pipes or other similar items, together or to supportsInfo
- Publication number
- CA1284573C CA1284573C CA 492818 CA492818A CA1284573C CA 1284573 C CA1284573 C CA 1284573C CA 492818 CA492818 CA 492818 CA 492818 A CA492818 A CA 492818A CA 1284573 C CA1284573 C CA 1284573C
- Authority
- CA
- Canada
- Prior art keywords
- strip
- buckle
- ears
- passageway
- strapping device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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- Package Frames And Binding Bands (AREA)
Abstract
DEVICE FOR STRAPPING CABLES, PIPES
OR OTHER SIMILAR ITEMS, TOGETHER OR TO SUPPORTS
ABSTRACT
A device for strapping cables, pipes and similar items together or to a support comprises a strap (1) constituted by a strip of bendable material, preferably metal, attached at one end to a buckle plate (2), conveniently of sheet metal, by passing one end of the strap (1) through a slot (5) and bending it back to underlie a portion of the strap which is wrapped around the cables (6) or the like to be strapped. The buckle plate has a raised bridge portion (3) and an aligned pair of fixed ears (3a',3a") with a gap therebetween.
The other end of the strap (1) is threaded beneath the ears and passed beneath the bridge portion (3). After pulling the stripping tight, its free end is bent back over the bridge portion (3) and secured by tilting it slightly about its axis and sliding it through the gap between the ears 3a' and 3a". In other embodiments the strip (1) is integral with the buckle plate (2).
OR OTHER SIMILAR ITEMS, TOGETHER OR TO SUPPORTS
ABSTRACT
A device for strapping cables, pipes and similar items together or to a support comprises a strap (1) constituted by a strip of bendable material, preferably metal, attached at one end to a buckle plate (2), conveniently of sheet metal, by passing one end of the strap (1) through a slot (5) and bending it back to underlie a portion of the strap which is wrapped around the cables (6) or the like to be strapped. The buckle plate has a raised bridge portion (3) and an aligned pair of fixed ears (3a',3a") with a gap therebetween.
The other end of the strap (1) is threaded beneath the ears and passed beneath the bridge portion (3). After pulling the stripping tight, its free end is bent back over the bridge portion (3) and secured by tilting it slightly about its axis and sliding it through the gap between the ears 3a' and 3a". In other embodiments the strip (1) is integral with the buckle plate (2).
Description
7~3 I)l.~]CI- FO~ STRAr'PJNG CABLES, P~PES OK
()~`HI;~ SlMlLAK lTEMS, TOGETHER OR TO SUPI'~RI`~
-I This invention re~ates to a device for strapping cables, pipes or other similar items, together or to a support, and which is intended to be assemb]ed around the cables or the like hithout the use o tools, it being sufficient to assemble the device by pulling the strapping hand tight, and thus avoiding the possibility of over-tensioning the strap.
Strapping devices are ~nown, for example as described in US-A-2377224 comprising a strap consti-tuted by a strip of bendable metal or non-metallic material attached at one end to a seal or buckle plate, conveniently made of sheet metal, which is adapted to secure the other end of the strip after the strip has been wrapped tight around the members to be strapped, wherein the seal or buckle plate has a bridge portion which is spaced above the surface of the plate and is wider than the width of the strip, the buckle plate also including two upstanding ears for holding the other end of the strip after it has been passed under the bridge portion and has been bent back over the bridge porti.on and positioned between the upstanding ears, the ears being finally clinched down upon the bent back end portion of the strip.
~he invention is characterised in thatthe two ears are in fixed positions, in which they remain throughout attachment of the strapping device and thereafter, spaced above the surface of the plate to form a passage therebeneath substantially i.n alignment with the bent back end portion of the strip, said two fixed ears having a gap therebetween sufficient to permit the thickness of the strip to be passed therethrough and being respectively connected to the buckle plate at ~28457,'3 1 locations such that the strip can be inserted beneath the fixed ears by first tilting the strip slightly about its axis and then by sideways insertion of a side edge thereof through said gap and beneath one of the ears until the other side edge of the strip is clear of the other ear and then pushing the strip sideways in the opposite direction until its said other side edge lies beneath said second ear.
From another aspect the invention consists in a strapping device comprising a strap constituted by a strip of bendable material attached at one end to or integra]
with a buckle plate which is adapted to secure the other end of the strip after the strip has been wrapped tight around the members to be strapped, wherein the buckle plate has a bridge portion which is wider than the width of the strip, the buckle plate also including means for holding down the other end of the strip after it has been passed under thQ bridge portion and has been bent back over the bridge portion,, and wherein the holding down means comprises two ears raised or folded over above the surface of the plate in fixed positions to form a passage therebeneath substantially in align-ment with the bent back end portion of the strip, said two fixed ears having a gap therebetween sufficient to permit the thickness of the strip to be passed there-through, the minimum distance between the connections of the fixed ears to the buckle plate being at least approximately twice the width of the strip.
In order that the present invention may be more clearly understood, reference will now be made to the accompanying drawings, in which:-s~:3 Fig. 1 is a perspective view of one embodiment of the device, according to the invention, shown assembled around and tying together three electric cables, Fig. 2 shows the strap of Fig. 1, Fig. 3 is a plan view of the buckle plate shown in Fig.
1, Fig. 4 is a section through Fig. 3 taken along the line Z--Z, Fig. 5 is a perspective view of an alternative embodiment, Fig. 6 is a perspective view of a further embodiment.
Referring to Figs. 1 to 4, the device comprises a strap 1 of bendable strip metal, conveniently 0.5mms thick type 316 stainless steel, and a buckle plate 2, conveniently made of the same material 0.88smms thick, and stamped to form a raised bridge portion 3 providing a passage beneath the bridge which is wider than the width of the strip steel forming the strap, the under-side of the flat top of the bridge preferably being spaced from the surface of the plate by slightly less than the thickness of the strip.
Slots 5, which may be defined by extensions of the opening produced by stamping up the bridge portion 3, are formed at opposite ends of the plate. Opposite ends of the slots may be formed downwards as shown to assist in pushing the strip through the bridge.
The buckle plate is also formed with a second raised bridge portion which is divided approximately along its centre line to form two fixed ears 3a' and 3a" and is made wider than the bridge 3.
To assemble the device around, for example a group of electric cables 6 to tie them together, one end of the strip 1 is passed through the slot 5 nearest an end of the plate, Lrom the raised bridge side of the buckle plate, for ,8 ~, l~,B457~3 a distance of about 2.5cms, and is folded back on the strip. The strip attached to the buckle plate is then wrapped around the cables 6 with the bridge portion 3 facing away from the cables, and the free end of the strip 1 is threaded under the ears 3a' and 3a" and through the passage under the bridge 3. Holding the buckle plate 2 firmly to prevent the assembly turning around the cables, the free end of the strip is pulled until the strip is tight, and at the same time the projecting end of the strip is bent back over the bridge 3 and the ears. The free end of the strip i5 then first tilted slightly about its axis and is slid through the gap between the fixed ears 3a' and 3a" with its edge inserted beneath one of the ears. It is then pushed sideways until its other edge is clear of the end of the second ear, where-upon the strip is pushed sideways in the opposite direction until its said other edge is engaged below said second ear and the strip is centralised beneath the fixed ears. The strip and buckle are now secured. The fixing and securing of the strapping is thus a simple operation to perform, even under difficult conditions. No bending of the ears is necessary, and consequently damage to the surface finish on the buckle and strip is minimised. To facilitate inserting the free end of the strip beneath the ears, the overall width between their connections to the buckle 2 should be approximately twice the width of the strip. For example, for a 1/4 inch (6.3mm) wide strip of 26SWG (0.46mm) stainless steel, the internal width of the bridge 3 can be 7/16 inch (11.2mm) and of the bridge 3a 9/16 inch (14.3mm). The free ends of the ears may be bent slightly away from the buckle as shown at 3k in Fig. 4, to form lead-in portions facilitating sideways insertion of the strip beneath the ears.
While particular embodiments have been described, it 457~
will be understood that various modifications may be made without departing from the scope of the invention. For example, instead of stainless steel, the components may be made of mild steel or other suitable material. The strips may be supplied in different lengths, e.g. nominally 30, 45, 60 and 75cms, their actual lengths being greater by about by about 2.54cms to allow for the folded-under end required for anchoring the strip to the buckle plate. Or a strap may be attached to the buckle plate by welding, or even by stamping it integrally with the buckle plate as shown in Figure 5, in which a buckle plate 2 of the construction shown in Figure 4 is made in one piece with the strip 1. Instead of stamping up the fixed ears 3a' and 3a" from the centre of the buckle plate, they may be constituted by ears projecting from the edge of the buckle plate and folded back inwards to their fixed positions with the gap therebetween and the appropriate spacing between their points of attachment to the plate.
Figure 6 shows a modified construction which is particularly suitable for smaller and lighter strapping.
In this embodiment in which the buckle portion 2 is integral with the strip 1, both the bridge 3b and the ears 3b' and 3b" are formed by folding up ear portions from opposite sides of the buckle portion. The ear portions forming the bridge 3_ may be shaped to form a recess 7 for centrallsing the strip when it is folded back over the bridge 3 .
The buckle portion of the embodiment of Figure 6 can also be made as a separate buckle plate to which the end of the strap 1 can be attached. It is not essential for the bridge 3 or 3_ to be raised above the main body or base ~4~;7~3 of the buckle or buckle portion; it may lie substantially flush with the remainder of the plate forming the buckle.
()~`HI;~ SlMlLAK lTEMS, TOGETHER OR TO SUPI'~RI`~
-I This invention re~ates to a device for strapping cables, pipes or other similar items, together or to a support, and which is intended to be assemb]ed around the cables or the like hithout the use o tools, it being sufficient to assemble the device by pulling the strapping hand tight, and thus avoiding the possibility of over-tensioning the strap.
Strapping devices are ~nown, for example as described in US-A-2377224 comprising a strap consti-tuted by a strip of bendable metal or non-metallic material attached at one end to a seal or buckle plate, conveniently made of sheet metal, which is adapted to secure the other end of the strip after the strip has been wrapped tight around the members to be strapped, wherein the seal or buckle plate has a bridge portion which is spaced above the surface of the plate and is wider than the width of the strip, the buckle plate also including two upstanding ears for holding the other end of the strip after it has been passed under the bridge portion and has been bent back over the bridge porti.on and positioned between the upstanding ears, the ears being finally clinched down upon the bent back end portion of the strip.
~he invention is characterised in thatthe two ears are in fixed positions, in which they remain throughout attachment of the strapping device and thereafter, spaced above the surface of the plate to form a passage therebeneath substantially i.n alignment with the bent back end portion of the strip, said two fixed ears having a gap therebetween sufficient to permit the thickness of the strip to be passed therethrough and being respectively connected to the buckle plate at ~28457,'3 1 locations such that the strip can be inserted beneath the fixed ears by first tilting the strip slightly about its axis and then by sideways insertion of a side edge thereof through said gap and beneath one of the ears until the other side edge of the strip is clear of the other ear and then pushing the strip sideways in the opposite direction until its said other side edge lies beneath said second ear.
From another aspect the invention consists in a strapping device comprising a strap constituted by a strip of bendable material attached at one end to or integra]
with a buckle plate which is adapted to secure the other end of the strip after the strip has been wrapped tight around the members to be strapped, wherein the buckle plate has a bridge portion which is wider than the width of the strip, the buckle plate also including means for holding down the other end of the strip after it has been passed under thQ bridge portion and has been bent back over the bridge portion,, and wherein the holding down means comprises two ears raised or folded over above the surface of the plate in fixed positions to form a passage therebeneath substantially in align-ment with the bent back end portion of the strip, said two fixed ears having a gap therebetween sufficient to permit the thickness of the strip to be passed there-through, the minimum distance between the connections of the fixed ears to the buckle plate being at least approximately twice the width of the strip.
In order that the present invention may be more clearly understood, reference will now be made to the accompanying drawings, in which:-s~:3 Fig. 1 is a perspective view of one embodiment of the device, according to the invention, shown assembled around and tying together three electric cables, Fig. 2 shows the strap of Fig. 1, Fig. 3 is a plan view of the buckle plate shown in Fig.
1, Fig. 4 is a section through Fig. 3 taken along the line Z--Z, Fig. 5 is a perspective view of an alternative embodiment, Fig. 6 is a perspective view of a further embodiment.
Referring to Figs. 1 to 4, the device comprises a strap 1 of bendable strip metal, conveniently 0.5mms thick type 316 stainless steel, and a buckle plate 2, conveniently made of the same material 0.88smms thick, and stamped to form a raised bridge portion 3 providing a passage beneath the bridge which is wider than the width of the strip steel forming the strap, the under-side of the flat top of the bridge preferably being spaced from the surface of the plate by slightly less than the thickness of the strip.
Slots 5, which may be defined by extensions of the opening produced by stamping up the bridge portion 3, are formed at opposite ends of the plate. Opposite ends of the slots may be formed downwards as shown to assist in pushing the strip through the bridge.
The buckle plate is also formed with a second raised bridge portion which is divided approximately along its centre line to form two fixed ears 3a' and 3a" and is made wider than the bridge 3.
To assemble the device around, for example a group of electric cables 6 to tie them together, one end of the strip 1 is passed through the slot 5 nearest an end of the plate, Lrom the raised bridge side of the buckle plate, for ,8 ~, l~,B457~3 a distance of about 2.5cms, and is folded back on the strip. The strip attached to the buckle plate is then wrapped around the cables 6 with the bridge portion 3 facing away from the cables, and the free end of the strip 1 is threaded under the ears 3a' and 3a" and through the passage under the bridge 3. Holding the buckle plate 2 firmly to prevent the assembly turning around the cables, the free end of the strip is pulled until the strip is tight, and at the same time the projecting end of the strip is bent back over the bridge 3 and the ears. The free end of the strip i5 then first tilted slightly about its axis and is slid through the gap between the fixed ears 3a' and 3a" with its edge inserted beneath one of the ears. It is then pushed sideways until its other edge is clear of the end of the second ear, where-upon the strip is pushed sideways in the opposite direction until its said other edge is engaged below said second ear and the strip is centralised beneath the fixed ears. The strip and buckle are now secured. The fixing and securing of the strapping is thus a simple operation to perform, even under difficult conditions. No bending of the ears is necessary, and consequently damage to the surface finish on the buckle and strip is minimised. To facilitate inserting the free end of the strip beneath the ears, the overall width between their connections to the buckle 2 should be approximately twice the width of the strip. For example, for a 1/4 inch (6.3mm) wide strip of 26SWG (0.46mm) stainless steel, the internal width of the bridge 3 can be 7/16 inch (11.2mm) and of the bridge 3a 9/16 inch (14.3mm). The free ends of the ears may be bent slightly away from the buckle as shown at 3k in Fig. 4, to form lead-in portions facilitating sideways insertion of the strip beneath the ears.
While particular embodiments have been described, it 457~
will be understood that various modifications may be made without departing from the scope of the invention. For example, instead of stainless steel, the components may be made of mild steel or other suitable material. The strips may be supplied in different lengths, e.g. nominally 30, 45, 60 and 75cms, their actual lengths being greater by about by about 2.54cms to allow for the folded-under end required for anchoring the strip to the buckle plate. Or a strap may be attached to the buckle plate by welding, or even by stamping it integrally with the buckle plate as shown in Figure 5, in which a buckle plate 2 of the construction shown in Figure 4 is made in one piece with the strip 1. Instead of stamping up the fixed ears 3a' and 3a" from the centre of the buckle plate, they may be constituted by ears projecting from the edge of the buckle plate and folded back inwards to their fixed positions with the gap therebetween and the appropriate spacing between their points of attachment to the plate.
Figure 6 shows a modified construction which is particularly suitable for smaller and lighter strapping.
In this embodiment in which the buckle portion 2 is integral with the strip 1, both the bridge 3b and the ears 3b' and 3b" are formed by folding up ear portions from opposite sides of the buckle portion. The ear portions forming the bridge 3_ may be shaped to form a recess 7 for centrallsing the strip when it is folded back over the bridge 3 .
The buckle portion of the embodiment of Figure 6 can also be made as a separate buckle plate to which the end of the strap 1 can be attached. It is not essential for the bridge 3 or 3_ to be raised above the main body or base ~4~;7~3 of the buckle or buckle portion; it may lie substantially flush with the remainder of the plate forming the buckle.
Claims (9)
1. A strapping device for strapping cables, pipes or similar items together or to a support, comprising:
a strip of bendable material having one end and an opposite end and an opposite end portion adjacent said opposite end, a buckle at said one end of said strip, said buckle having an outer surface, and means mounted on said buckle for receiving and holding said opposite end portion of said strip after the strip has been wrapped around the items to be strapped, said strip receiving and holding means comprising:
(a) a bridge portion extending transversely of said buckle and defining a first longitudinal passageway, with said first passageway having a transverse width greater than the width of said strip and being sized so as to be adapted to receive a portion of the strip therethrough, and (b) a pair of transversely spaced apart ears extending outwardly from said outer surface of said buckle at a location longitudinally spaced from said bridge portion and on the side of said bridge portion opposite said one end of said strip, said ears each having an outwardly extending base portion and a transversely extending outer end portion, with said base portions of said ears being transversely spaced apart a distance greater than the width of said strip so as to be adapted to receive a portion of the strip therebetween, and with said outer end portions extending generally parallel to said outer surface of said buckle and so as to define a transverse gap between said outer end portions, and such that said ears collectively define a second longitudinal passageway which is in longitudinal alignment with said first passageway, and with said ears being confirgured and dimensioned so as to permit said opposite end portion of said strip to be longitudinal-ly inserted through said second passageway and then through said first passageway, then bent over said bridge portion so as to provide a superposed end portion which is posi-tioned over the portion of the strip passing through said second passageway, and then passing the superposed end portion of the strip through said gap and into said second passageway by tilting said superposed end portion and transversely inserting one of said side edges thereof sideways through said gap and beneath one of said ears until the other of said side edges thereof has passed through said gap and into said second passageway, and then pushing said superposed end portion transverely in the opposite direction until the other of said side edges is positioned under the other of said ears, and so that the superposed end portion is secured within said second pas-ssageway.
a strip of bendable material having one end and an opposite end and an opposite end portion adjacent said opposite end, a buckle at said one end of said strip, said buckle having an outer surface, and means mounted on said buckle for receiving and holding said opposite end portion of said strip after the strip has been wrapped around the items to be strapped, said strip receiving and holding means comprising:
(a) a bridge portion extending transversely of said buckle and defining a first longitudinal passageway, with said first passageway having a transverse width greater than the width of said strip and being sized so as to be adapted to receive a portion of the strip therethrough, and (b) a pair of transversely spaced apart ears extending outwardly from said outer surface of said buckle at a location longitudinally spaced from said bridge portion and on the side of said bridge portion opposite said one end of said strip, said ears each having an outwardly extending base portion and a transversely extending outer end portion, with said base portions of said ears being transversely spaced apart a distance greater than the width of said strip so as to be adapted to receive a portion of the strip therebetween, and with said outer end portions extending generally parallel to said outer surface of said buckle and so as to define a transverse gap between said outer end portions, and such that said ears collectively define a second longitudinal passageway which is in longitudinal alignment with said first passageway, and with said ears being confirgured and dimensioned so as to permit said opposite end portion of said strip to be longitudinal-ly inserted through said second passageway and then through said first passageway, then bent over said bridge portion so as to provide a superposed end portion which is posi-tioned over the portion of the strip passing through said second passageway, and then passing the superposed end portion of the strip through said gap and into said second passageway by tilting said superposed end portion and transversely inserting one of said side edges thereof sideways through said gap and beneath one of said ears until the other of said side edges thereof has passed through said gap and into said second passageway, and then pushing said superposed end portion transverely in the opposite direction until the other of said side edges is positioned under the other of said ears, and so that the superposed end portion is secured within said second pas-ssageway.
2. A strapping device as set forth in claim 1, in which said second passageway defined by said ears has a width at least approximately twice the width of said strip.
3. A strapping device as set forth in claim 1 or 2, in which said bridge portion extends outwardly from said outer surface of said buckle.
4. A strapping device as set forth in claim 1 or 2, in which said buckle includes a transverse slot therein and said one end of said strip is attached to said buckle by a loop in said one end which passes through said slot.
5. A strapping device as set forth in claim 1 or 2, in which said strip and said buckle are composed of an inte-gral piece of metallic material.
6. A strapping device as get forth in claim 1 or 2, in which said buckle comprises sheet metal and said bridge portion and said spaced-apart ears comprises stamped por-tions raised from the surface of said buckle.
7. A strapping device as set forth in claim 1 or 2, in which said buckle is stamped out of sheet metal and said bridge portion and said ears are folded back over said outer surface of said buckle.
8. A strapping device as set forth in claim 1 or 2, in which said outer end portions of said ears include outer edge portions which are oppositely inclined away from said outer surface of said buckle to facilitate assembly of the superposed end portion of said strip through said gap.
9. A strapping device as set forth in claim 1 or 2, in which said ears are transversely aligned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 492818 CA1284573C (en) | 1985-10-15 | 1985-10-15 | Device for strapping cables, pipes or other similar items, together or to supports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 492818 CA1284573C (en) | 1985-10-15 | 1985-10-15 | Device for strapping cables, pipes or other similar items, together or to supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1284573C true CA1284573C (en) | 1991-06-04 |
Family
ID=4131606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 492818 Expired CA1284573C (en) | 1985-10-15 | 1985-10-15 | Device for strapping cables, pipes or other similar items, together or to supports |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1284573C (en) |
-
1985
- 1985-10-15 CA CA 492818 patent/CA1284573C/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |