CA1086026A - Tensioning device - Google Patents
Tensioning deviceInfo
- Publication number
- CA1086026A CA1086026A CA304,463A CA304463A CA1086026A CA 1086026 A CA1086026 A CA 1086026A CA 304463 A CA304463 A CA 304463A CA 1086026 A CA1086026 A CA 1086026A
- Authority
- CA
- Canada
- Prior art keywords
- members
- core members
- elongate
- core
- tensioned
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/081—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling means at cable ends, e.g. pulling eyes or anchors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B9/00—Hand-held gripping tools other than those covered by group B25B7/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
- F16G11/04—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps
Abstract
Abstract of the Disclosure A device for use in applying tension to elongate members such as wires, comprises an elongate tubular body having a longitudinally tapering passage extending longitudinally therethrough, and two elongate core members adapted to be arranged together and with one or more wires to be tensioned, for wedging reception in the passage in the body. Each core member has a first major surface with a central longitudinally extending semi-circular cross-section groove therein, and a second opposite major surface with a parallel rectangular cross-section groove therein, the major surfaces being joined by opposed minor surfaces to define longitudinally extending corners.
The corners defined by the major surface containing the semi-circular groove are concave to receive a wire and the corners defined by the other major surface are convex to mate with longitudinally extending corners of the body when the core members are received in the passage in the body. The core members can be orientated selectively with the first major surfaces of the core members facing each other for entrapment of an elongate member to be tensioned between the semi-circular cross-section grooves of the two core members and the core members can also be orientated selectively with the second major surfaces of the core members facing each other for entrap-mont of two or more elongate members to be tensioned respectively between a concave corner of a core member and the body, when the body is pulled in the direction to apply tension to the elongate member or members to be tensioned.
The corners defined by the major surface containing the semi-circular groove are concave to receive a wire and the corners defined by the other major surface are convex to mate with longitudinally extending corners of the body when the core members are received in the passage in the body. The core members can be orientated selectively with the first major surfaces of the core members facing each other for entrapment of an elongate member to be tensioned between the semi-circular cross-section grooves of the two core members and the core members can also be orientated selectively with the second major surfaces of the core members facing each other for entrap-mont of two or more elongate members to be tensioned respectively between a concave corner of a core member and the body, when the body is pulled in the direction to apply tension to the elongate member or members to be tensioned.
Description
r ?l ~ 861D2 .
This invention relates to a device for use in applying tension to elongate members such as electrical conductors, support wires, or the like.
There is often a need to apply tension to one or more elongate and possibly flexible members, and a difficulty which arises is holding the members satisfactorily to enable them to be manually pulled to apply the necessary tension.
There is thus a need for a device which can easily be attached to one or more elongate members to provide them with a means for applying tension thereto by manually pulling the members longitudinally.
Preferably a single device should be selectively usable with more than one number of members with adaption to any particular number of members being easy to effect.
According to this invention, a device for use in applying tension to elongate members comprises an elongate tubular body having a longitudinally tapering passage extending longitudinally therethrough, and two elongate core members adapted to be arranged together and with one or more elongate members to be tensioned, for wedging reception in the passage in the body, each core member having a first major surface with a central longitudinally extending semi-circular cross-section groove therein, and a second opposite major sur-face with a parallel rectangular cross-section groove therein, the major surfaces being joined by opposed minor surfaces to define longitudinally ex-tending corners, the corners defined by the major surface containing the semi-circular groove being concave to receive an elongate member, and the cornors defined by the other major surface containing the rectangular cross-section groove being convex to mate with longitudinally extending corners Oe the body when the core members are received in the passage in the body, whereby the core members can be orientated selectively with the first major surfaces of the core members facing each other for entrapment of an elongate
This invention relates to a device for use in applying tension to elongate members such as electrical conductors, support wires, or the like.
There is often a need to apply tension to one or more elongate and possibly flexible members, and a difficulty which arises is holding the members satisfactorily to enable them to be manually pulled to apply the necessary tension.
There is thus a need for a device which can easily be attached to one or more elongate members to provide them with a means for applying tension thereto by manually pulling the members longitudinally.
Preferably a single device should be selectively usable with more than one number of members with adaption to any particular number of members being easy to effect.
According to this invention, a device for use in applying tension to elongate members comprises an elongate tubular body having a longitudinally tapering passage extending longitudinally therethrough, and two elongate core members adapted to be arranged together and with one or more elongate members to be tensioned, for wedging reception in the passage in the body, each core member having a first major surface with a central longitudinally extending semi-circular cross-section groove therein, and a second opposite major sur-face with a parallel rectangular cross-section groove therein, the major surfaces being joined by opposed minor surfaces to define longitudinally ex-tending corners, the corners defined by the major surface containing the semi-circular groove being concave to receive an elongate member, and the cornors defined by the other major surface containing the rectangular cross-section groove being convex to mate with longitudinally extending corners Oe the body when the core members are received in the passage in the body, whereby the core members can be orientated selectively with the first major surfaces of the core members facing each other for entrapment of an elongate
-2- ~
: ~ --- .
6~Z6 member to be tensioned between the semi-circular cross-section grooves of the two core members and the core members can also be orientated selectively - with the second major surfaces of the core members facing each other for entrapment of two or more elongate members to be tensioned respectively be-tween a concave corner of a core member and the body, when the body is pull-ed in the direction to apply tension to the elongate member or members to be tensioned.
Preferably the body of the device is split longitudinally whereby an elongate member to be tensioned can be moved into the passage in the body by movement transversely of its longitudinal axis through the split in the body.
Such a split in the body will also render the body sufficiently resilient to ensure satisfactory wedging of the core members and elongate members to be tensioned therein, and will also permit the body to be opened sufficiontly to permit removal of the core members from the body after use of the device.
Further, the core members can each be provided on their end to be adjacent the larger cross-sectional end of the passage in the body, with means such as an apertured boss, for engagement by a suitable tool to assist in removal of the core members from the body after use of the device.
Preferably the body has a handle mounted thereon by which the de-vice can readily be manually pulled axially of any elongate member or members wcdged in the body by the core members.
A device according to this invention will now be described by way o oxample with reference to the drawings, in which:-Figure 1 is a perspective view of the body of 6~26 : ~730 the device;
Figure 2 is a perspectlve view o~ the core members of the device arranged for use in applylng tension to a single elongate member;
S Figure 3 is a perspective view of part of the core members of the device arranged for use in applyi.ng tension to two elongate members; and '.
Figure 4 is a perspective view of the core members of the devlce arranged for use in applying tension to four elongate members.
. The device comprises an elongate tubular body 1 moulded from pl.astics material and having circumferential ribs 2 which serve to render the body - relati.vely rigid.
The body 1 defines a longitudinally tapering, longitudinally extending passage 3, with the smaller . .
cross-sectional area end of the passage 3 being to the left in Figure 1.
The body 1 has a longitudinally extending split ~0 4 in one side, through which split 4 an elongate member (see Figures 2 to 4) can be moved transversely of its longitudinal axis into the passage 3.
A handle S is pivotally connected to the body 1 at the larger cross-sectional area end thereof.
~5Considering now Figures 2 to 4 also, the device .~ also comprises two tapered core members 6 also moulded from plastics material and adapted to be arranged ' .
.
-~86~2 Ei together with one (Figure 2) or more (Figures 3 and 4) elongate members, such as electrical conductors 7, to be tensioned, for wedging reception in th~ passage
: ~ --- .
6~Z6 member to be tensioned between the semi-circular cross-section grooves of the two core members and the core members can also be orientated selectively - with the second major surfaces of the core members facing each other for entrapment of two or more elongate members to be tensioned respectively be-tween a concave corner of a core member and the body, when the body is pull-ed in the direction to apply tension to the elongate member or members to be tensioned.
Preferably the body of the device is split longitudinally whereby an elongate member to be tensioned can be moved into the passage in the body by movement transversely of its longitudinal axis through the split in the body.
Such a split in the body will also render the body sufficiently resilient to ensure satisfactory wedging of the core members and elongate members to be tensioned therein, and will also permit the body to be opened sufficiontly to permit removal of the core members from the body after use of the device.
Further, the core members can each be provided on their end to be adjacent the larger cross-sectional end of the passage in the body, with means such as an apertured boss, for engagement by a suitable tool to assist in removal of the core members from the body after use of the device.
Preferably the body has a handle mounted thereon by which the de-vice can readily be manually pulled axially of any elongate member or members wcdged in the body by the core members.
A device according to this invention will now be described by way o oxample with reference to the drawings, in which:-Figure 1 is a perspective view of the body of 6~26 : ~730 the device;
Figure 2 is a perspectlve view o~ the core members of the device arranged for use in applylng tension to a single elongate member;
S Figure 3 is a perspective view of part of the core members of the device arranged for use in applyi.ng tension to two elongate members; and '.
Figure 4 is a perspective view of the core members of the devlce arranged for use in applying tension to four elongate members.
. The device comprises an elongate tubular body 1 moulded from pl.astics material and having circumferential ribs 2 which serve to render the body - relati.vely rigid.
The body 1 defines a longitudinally tapering, longitudinally extending passage 3, with the smaller . .
cross-sectional area end of the passage 3 being to the left in Figure 1.
The body 1 has a longitudinally extending split ~0 4 in one side, through which split 4 an elongate member (see Figures 2 to 4) can be moved transversely of its longitudinal axis into the passage 3.
A handle S is pivotally connected to the body 1 at the larger cross-sectional area end thereof.
~5Considering now Figures 2 to 4 also, the device .~ also comprises two tapered core members 6 also moulded from plastics material and adapted to be arranged ' .
.
-~86~2 Ei together with one (Figure 2) or more (Figures 3 and 4) elongate members, such as electrical conductors 7, to be tensioned, for wedging reception in th~ passage
3 in the body 1.
As shown~ each core member 6 has a central longitudinally extending semi-circular cross-section groove 8 in one major surfaca, and a parallel rectangular '~
cross-section groove 9 in the opposite major surface.
The longitudinally extending corners defined by the major surface containing the groove 8 are concave as shown at 10, to receive an elongate member 7, while those defined by the other major surface containing the groove 9 are convex as shown at 11, to mate with a longitudinally extending corner 12 (Figure 1) of the body 1 when the core members 6 are received in the passage 3.
Each core member 6 has at its end for reception in the larger cross-sectional end of the passage 3 ln the body 1 (right hand end in Figures 2 to
As shown~ each core member 6 has a central longitudinally extending semi-circular cross-section groove 8 in one major surfaca, and a parallel rectangular '~
cross-section groove 9 in the opposite major surface.
The longitudinally extending corners defined by the major surface containing the groove 8 are concave as shown at 10, to receive an elongate member 7, while those defined by the other major surface containing the groove 9 are convex as shown at 11, to mate with a longitudinally extending corner 12 (Figure 1) of the body 1 when the core members 6 are received in the passage 3.
Each core member 6 has at its end for reception in the larger cross-sectional end of the passage 3 ln the body 1 (right hand end in Figures 2 to
4) an apertured boss 13 for engagement by a tool to assist in removal of the core members 6 from the body 1 after use of the device.
~190 at this end of each core member 6 are two laterally extending wings 14 which serve to limit lnsertion of the core member 6 into the body 1.
Referring now specifically to Figures 1 and 2, when the device is to be used for tensioning only a
~190 at this end of each core member 6 are two laterally extending wings 14 which serve to limit lnsertion of the core member 6 into the body 1.
Referring now specifically to Figures 1 and 2, when the device is to be used for tensioning only a
- 5 -: . . . ..
: ., . ' . ~ . ' . .. ,. , ' , .. . .
' . : ~ ' ., .' .. ~ -;:
~730 single conductor 7, the conductor 7 is introduced i.nto the passage 3 in the body 1 either from one end thereof or through the split 4.
The core members 6 are then arranged about the conductor 7 as shown in Figure 2, that i5 with the grooves 8 in the core members 6 ~acing each other and with the conductor 7 received in the grooves 8.
~his arrangement is made at the larger cross-sectional area end of the passage 3, and with the smaller ends of the core memb~rs 6 adjacent the body 1.
The body 1 is then moved over the arrangement o~ core members 6 and conductor 7 axially of the conductor 7, until the convex corners 11 of the coxe members 6 engage the corners 12 of the passage 3 and the arrangement thus becomes wedged in the body 1.
The conductor 7 can then be tensioned by pulling on the handle 5, such pulling being opposed by the conductor 7 such that the wedging flt of ~he core members 6 in the body 1 is maintained.
When the conductor 7 has been tensioned and held as required the handle 5 can be released, and the device removed from the conductor 7 by xemoving the core members 6 from the passage 3 by pulling them axially of the conductor 7 by means of the bosses 13 and a suitable tool if necessary.
If the device is to be used to tension two conductors 7 simultaneously, then the core members 6 ' ~ `
QZ~i are arranged as shown in Figure 3, that is with the groove 8 of one facing the groove 9 of the other.
The two conduc~ors 7 are then received in the outwardly facing concave corners 10 of one of the core members 6, and in use of the device becom~s wedged between this core member 6 and the body 1.
Assembly of the device and removal of the device from the conductors 7 after use, are as described above with reference to Figure 2.
When the device is to be used to tension four conductors 7 simultaneously, then the core members 6 are arranged as shown in Figure 4, that is with the grooves 9 therein facing.
The four conductors 7 are then received in the four outwardly facing concave corners 10 of the core members 6, to become wedged between the core members
: ., . ' . ~ . ' . .. ,. , ' , .. . .
' . : ~ ' ., .' .. ~ -;:
~730 single conductor 7, the conductor 7 is introduced i.nto the passage 3 in the body 1 either from one end thereof or through the split 4.
The core members 6 are then arranged about the conductor 7 as shown in Figure 2, that i5 with the grooves 8 in the core members 6 ~acing each other and with the conductor 7 received in the grooves 8.
~his arrangement is made at the larger cross-sectional area end of the passage 3, and with the smaller ends of the core memb~rs 6 adjacent the body 1.
The body 1 is then moved over the arrangement o~ core members 6 and conductor 7 axially of the conductor 7, until the convex corners 11 of the coxe members 6 engage the corners 12 of the passage 3 and the arrangement thus becomes wedged in the body 1.
The conductor 7 can then be tensioned by pulling on the handle 5, such pulling being opposed by the conductor 7 such that the wedging flt of ~he core members 6 in the body 1 is maintained.
When the conductor 7 has been tensioned and held as required the handle 5 can be released, and the device removed from the conductor 7 by xemoving the core members 6 from the passage 3 by pulling them axially of the conductor 7 by means of the bosses 13 and a suitable tool if necessary.
If the device is to be used to tension two conductors 7 simultaneously, then the core members 6 ' ~ `
QZ~i are arranged as shown in Figure 3, that is with the groove 8 of one facing the groove 9 of the other.
The two conduc~ors 7 are then received in the outwardly facing concave corners 10 of one of the core members 6, and in use of the device becom~s wedged between this core member 6 and the body 1.
Assembly of the device and removal of the device from the conductors 7 after use, are as described above with reference to Figure 2.
When the device is to be used to tension four conductors 7 simultaneously, then the core members 6 are arranged as shown in Figure 4, that is with the grooves 9 therein facing.
The four conductors 7 are then received in the four outwardly facing concave corners 10 of the core members 6, to become wedged between the core members
6 and the body 1.
Assembly and removal of the device are again as described with reference to Figure 2.
. . :
Assembly and removal of the device are again as described with reference to Figure 2.
. . :
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for use in applying tension to elongate members, compris-ing an elongate tubular body having a longitudinally tapering passage extend-ing longitudinally therethrough, and two elongate core members adapted to be arranged together and with one or more elongate members to be tensioned, for wedging reception in the passage in the body, each core member having a first major surface with a central longitudinally extending semi-circular cross-section groove therein, and a second opposite major surface with a parallel rectangular cross-section groove therein, the major surfaces being joined by opposed minor surfaces to define longitudinally extending corners, the corners defined by the major surface containing the semi-circular groove being concave to receive an elongate member, and the corners defined by the other major surface containing the rectangular cross-section groove being convex to mate with longitudinally extending corners of the body when the core members are received in the passage in the body, whereby the core members can be orientated selectively with the first major surfaces of the core members facing each other for entrapment of an elongate member to be tensioned between the semi-circular cross-section grooves of the two core members and the core members can also be orientated selectively with the second major surfaces of the core members facing each other for entrapment of two or more elongate members to be tensioned respectively between a concave corner of a core member and the body, when the body is pulled in the direc-tion to apply tension to the elongate member or members to be tensioned.
2. A device as claimed in claim 1, in which the body of the device is split longitudinally whereby an elongate member to be tensioned can be moved into the passage in the body by movement transversely of its longitudinal axis through the split in the body.
3. A device as claimed in claim 1 or claim 2, in which the core members are each provided on their end to be adjacent the larger cross-sectional end of the passage in the body, with means for engagement by a suitable tool to assist in removal of the core members from the body after use of the device.
4. A device as claimed in claim 1, in which the body has a handle mounted thereon by which the device can readily be manually pulled axially of any elongate member or members wedged in the body by the core members.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2418177A GB1591845A (en) | 1977-06-09 | 1977-06-09 | Tensioning device |
| GB24181/77 | 1977-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1086026A true CA1086026A (en) | 1980-09-23 |
Family
ID=10207696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA304,463A Expired CA1086026A (en) | 1977-06-09 | 1978-05-30 | Tensioning device |
Country Status (9)
| Country | Link |
|---|---|
| AR (1) | AR214455A1 (en) |
| BR (1) | BR7803586A (en) |
| CA (1) | CA1086026A (en) |
| DE (1) | DE7817234U1 (en) |
| ES (1) | ES236566Y (en) |
| FR (1) | FR2393654A1 (en) |
| GB (1) | GB1591845A (en) |
| IT (1) | IT7821920V0 (en) |
| MX (1) | MX143921A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2911374C2 (en) * | 1979-03-23 | 1986-12-18 | Hochtemperatur-Reaktorbau GmbH, 4600 Dortmund | Jig |
| AT384867B (en) * | 1985-11-27 | 1988-01-25 | Mosdorfer Gmbh | Anchoring clamp for ropes, ladders or the like |
| US6186567B1 (en) * | 1998-07-02 | 2001-02-13 | John Blick | Automatic clamping and placement holder |
| US6076236A (en) * | 1999-04-02 | 2000-06-20 | Maclean-Fogg Company | Top opening cable connector |
| EP1046836A3 (en) | 1999-04-20 | 2002-03-13 | Peter John Stenstrom | Device for displacing a pipe etc. |
| US8096024B2 (en) * | 2008-08-13 | 2012-01-17 | Thyssenkrupp Elevator Capital Corporation | Rope termination device |
| CN103762524A (en) * | 2013-12-28 | 2014-04-30 | 北京昊华能源股份有限公司 | Wire drawing device capable of being fixed automatically |
| CN105065570A (en) * | 2015-09-02 | 2015-11-18 | 无锡通用钢绳有限公司 | Locking clamp for steel wire rope |
| FR3049316B1 (en) * | 2016-03-24 | 2018-09-07 | Renault S.A.S. | DEVICE FOR MANUALLY MOVING A ROD |
-
1977
- 1977-06-09 GB GB2418177A patent/GB1591845A/en not_active Expired
-
1978
- 1978-05-17 AR AR27221078A patent/AR214455A1/en active
- 1978-05-22 IT IT2192078U patent/IT7821920V0/en unknown
- 1978-05-30 CA CA304,463A patent/CA1086026A/en not_active Expired
- 1978-06-05 BR BR7803586A patent/BR7803586A/en unknown
- 1978-06-08 DE DE19787817234 patent/DE7817234U1/en not_active Expired
- 1978-06-08 FR FR787817154A patent/FR2393654A1/en active Granted
- 1978-06-08 MX MX17374078A patent/MX143921A/en unknown
- 1978-06-08 ES ES1978236566U patent/ES236566Y/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2393654A1 (en) | 1979-01-05 |
| BR7803586A (en) | 1979-02-13 |
| ES236566U (en) | 1978-09-01 |
| GB1591845A (en) | 1981-06-24 |
| FR2393654B3 (en) | 1980-09-19 |
| MX143921A (en) | 1981-07-31 |
| DE7817234U1 (en) | 1978-10-05 |
| AR214455A1 (en) | 1979-06-15 |
| IT7821920V0 (en) | 1978-05-22 |
| ES236566Y (en) | 1979-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |