CA2268463A1 - Fastening assembly for connecting a cable to a clasping device - Google Patents
Fastening assembly for connecting a cable to a clasping device Download PDFInfo
- Publication number
- CA2268463A1 CA2268463A1 CA002268463A CA2268463A CA2268463A1 CA 2268463 A1 CA2268463 A1 CA 2268463A1 CA 002268463 A CA002268463 A CA 002268463A CA 2268463 A CA2268463 A CA 2268463A CA 2268463 A1 CA2268463 A1 CA 2268463A1
- Authority
- CA
- Canada
- Prior art keywords
- tip
- cable
- ring
- clasping device
- hole
- 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.)
- Abandoned
Links
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B45/00—Hooks; Eyes
- F16B45/02—Hooks with pivoting or elastically bending closing member
- F16B45/036—Hooks with pivoting or elastically bending closing member with an elastically bending closing member
-
- 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
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/08—Swivels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Disclosed is a fastening assembly for use to pivotably connect a free end of cable to a clasping device such as a hook, which is very efficient and simple in structure. The assembly has a base portion that is part of the clasping device. The base portion has a tip-receiving and locking ring provided with a central hole and at least one set of opposite, spaced away arms that connects the ring to the clasping device, the arms defining an open space over the hole.
A tip is rigidly attached to the free end of the cable. This tip has a cylindrical body portion that is rigidly crimped over the free end of the cable, and a heat portion of a larger diameter than the body portion that projects transversely outwardly on top of the body portion. The head portion is sized to pass through the hole of the ring of the clasping device. After the tip that is attached to the free end of the cable, has been inserted into the hole, the ring is deformed so as to cause it to fit onto and around the body portion of the tip and thus to trap the tip while letting it free to rotate.
A tip is rigidly attached to the free end of the cable. This tip has a cylindrical body portion that is rigidly crimped over the free end of the cable, and a heat portion of a larger diameter than the body portion that projects transversely outwardly on top of the body portion. The head portion is sized to pass through the hole of the ring of the clasping device. After the tip that is attached to the free end of the cable, has been inserted into the hole, the ring is deformed so as to cause it to fit onto and around the body portion of the tip and thus to trap the tip while letting it free to rotate.
Description
' CA 02268463 1999-04-19 FASTENING ASSEMBLY
BACKGROUND OF THE INVENTION
a1 Field of the invention The present invention relates to a fastening assembly for use to connect an end of a cable to a clasping device, such as a hook, while allowing pivotal movement of the cable with respect to the clasping device.
1 o b) Brief description of the prior art It is well known in the art to connect a clasping device, for example a hook or a clevis assembly, to a cable in order to facilitate the attaching or detaching of such cable to an object. Such devices usually comprise a ring through which the end of the cable is inserted and closed to form a loop.
There are several drawbacks to this type of attachment. The most important one is that a greater length of cable must be used than the desired effective length, which can be costly on a mass production basis.
Another drawback is that the strength of the clasping device is limited to the strength of the cable lop, which is usually likely to fail a lot sooner than 2 o the device itself would, thereby significantly reducing its life expectancy.
Therefore, there is a need to develop method for connecting a clasping device to and end of a cable, which method would avoid forming a loop with the cable while allowing rotation.
In copending Canadian patent application No. 2,232,054 filed on April 20, 1998 in the name of the same inventor, there is disclosed a fastening assembly for use to pivotally connect a cable to a clasping device having a base portion provided with a longitudinal bore. The fastening assembly comprises a bushing that is snugly insertable into the longitudinal bore. The bushing consists of a cylindrical piece having a semicircular 3 o peripheral groove made on its external surface, a recess made in one of its ends and a channel longitudinally and medially extending between the recess and the end of the bushing that is opposite the recess. An enlarged tip is crimped to the end of the cable. The tip is sized and shaped to fit into the recess made in the bushing when the cable is inserted into the channel.
The assembly also comprises at least one and preferably two retaining pins that can be inserted into transversal holes made in the base portion of the clasping device, in registry with the semicircular groove of the bushing, once this bushing is inserted in the longitudinal bore, thereby allowing connection of the bushing into the base portion of the clasping device. As can be understood in this assembly, the cable remains free to rotate within to the bushing and thus relative to the clasping device.
OBJECT OF THE INVENTION
The object of the present invention is to provide a new fastening assembly for use to pivotably connect a cable to a clasping device such as a hook, which is very efficient and yet simpler in structure than the one disclosed in the above multitude patent application to the same inventor.
A preferred embodiment of this new fastening assembly is shown in the accompanying drawings.
2 o BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a side elevational view of the clasping device of a fastening assembly according to a preferred embodiment of the invention;
Figure 2 is a front elevational view of the clasping device shown in Figure 1;
Figure 3 is a bottom plan view of the clasping device shown in Figures 1 and 2;
Figure 4 is a side elevational view of the enlarged tip crimped to the end of the cable of the fastening assembly according to the preferred embodiment of the invention;
3 o Figure 5 is a side elevational view in partial cross-section of the clasping device shown in Figures 1 to 3, after the enlarged tip has been inserted into the receiving ring and the latter has been pinched to form the requested assembly;
Figure 6 is a front elevational view of the assembly showing Figure 5; and Figure 7 is a bottom plan view of the assembly shown in Figures 6 and 7.
DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION
1o The fastening assembly according to the preferred embodiment of the present invention as shown in the accompanying drawings is devised to connect in a free-to-pivot manner the free end of a cable 1 to a clasping device which is preferably a hook 1 1.
As is shown in Figure 4, a tip 3 is rigidly attached to the free end of the cable 1. The tip comprises a cylindrical body portion 5 that is rigidly crimped over the end of the cable 1. It also comprises a head portion 7 of larger diameter than the body portion, which extends transversely on top of the body portion.
As is shown in Figures 1 and 3, the hook 1 has a curved portion 13 2 o for use to attach it to a given object (not shownl, and a base portion 15.
A
tiltable flap 17 shown in dotted lines in Figure 1, only can be provided in the curve portion 13 to prevent the hook from accidentally detaching from the object.
The base portion 15 of the hook 1 comprises a tip-receiving and locking ring 19 extending transversely below and away from the curved portion 13. The ring 19 has a central hole 21. It forms an integral part of the hook 1 1 and is connected to the lower extremity of the curved portions 13 by a set of opposite, spaced away arms 23, thereby defining an open space 25 over the hole 21.
3 o The hole 21 made in the ring 19 is sized to receive and let pass the head portion 7 of the tip 3 crimped to the end of the cable 1.
BACKGROUND OF THE INVENTION
a1 Field of the invention The present invention relates to a fastening assembly for use to connect an end of a cable to a clasping device, such as a hook, while allowing pivotal movement of the cable with respect to the clasping device.
1 o b) Brief description of the prior art It is well known in the art to connect a clasping device, for example a hook or a clevis assembly, to a cable in order to facilitate the attaching or detaching of such cable to an object. Such devices usually comprise a ring through which the end of the cable is inserted and closed to form a loop.
There are several drawbacks to this type of attachment. The most important one is that a greater length of cable must be used than the desired effective length, which can be costly on a mass production basis.
Another drawback is that the strength of the clasping device is limited to the strength of the cable lop, which is usually likely to fail a lot sooner than 2 o the device itself would, thereby significantly reducing its life expectancy.
Therefore, there is a need to develop method for connecting a clasping device to and end of a cable, which method would avoid forming a loop with the cable while allowing rotation.
In copending Canadian patent application No. 2,232,054 filed on April 20, 1998 in the name of the same inventor, there is disclosed a fastening assembly for use to pivotally connect a cable to a clasping device having a base portion provided with a longitudinal bore. The fastening assembly comprises a bushing that is snugly insertable into the longitudinal bore. The bushing consists of a cylindrical piece having a semicircular 3 o peripheral groove made on its external surface, a recess made in one of its ends and a channel longitudinally and medially extending between the recess and the end of the bushing that is opposite the recess. An enlarged tip is crimped to the end of the cable. The tip is sized and shaped to fit into the recess made in the bushing when the cable is inserted into the channel.
The assembly also comprises at least one and preferably two retaining pins that can be inserted into transversal holes made in the base portion of the clasping device, in registry with the semicircular groove of the bushing, once this bushing is inserted in the longitudinal bore, thereby allowing connection of the bushing into the base portion of the clasping device. As can be understood in this assembly, the cable remains free to rotate within to the bushing and thus relative to the clasping device.
OBJECT OF THE INVENTION
The object of the present invention is to provide a new fastening assembly for use to pivotably connect a cable to a clasping device such as a hook, which is very efficient and yet simpler in structure than the one disclosed in the above multitude patent application to the same inventor.
A preferred embodiment of this new fastening assembly is shown in the accompanying drawings.
2 o BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a side elevational view of the clasping device of a fastening assembly according to a preferred embodiment of the invention;
Figure 2 is a front elevational view of the clasping device shown in Figure 1;
Figure 3 is a bottom plan view of the clasping device shown in Figures 1 and 2;
Figure 4 is a side elevational view of the enlarged tip crimped to the end of the cable of the fastening assembly according to the preferred embodiment of the invention;
3 o Figure 5 is a side elevational view in partial cross-section of the clasping device shown in Figures 1 to 3, after the enlarged tip has been inserted into the receiving ring and the latter has been pinched to form the requested assembly;
Figure 6 is a front elevational view of the assembly showing Figure 5; and Figure 7 is a bottom plan view of the assembly shown in Figures 6 and 7.
DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION
1o The fastening assembly according to the preferred embodiment of the present invention as shown in the accompanying drawings is devised to connect in a free-to-pivot manner the free end of a cable 1 to a clasping device which is preferably a hook 1 1.
As is shown in Figure 4, a tip 3 is rigidly attached to the free end of the cable 1. The tip comprises a cylindrical body portion 5 that is rigidly crimped over the end of the cable 1. It also comprises a head portion 7 of larger diameter than the body portion, which extends transversely on top of the body portion.
As is shown in Figures 1 and 3, the hook 1 has a curved portion 13 2 o for use to attach it to a given object (not shownl, and a base portion 15.
A
tiltable flap 17 shown in dotted lines in Figure 1, only can be provided in the curve portion 13 to prevent the hook from accidentally detaching from the object.
The base portion 15 of the hook 1 comprises a tip-receiving and locking ring 19 extending transversely below and away from the curved portion 13. The ring 19 has a central hole 21. It forms an integral part of the hook 1 1 and is connected to the lower extremity of the curved portions 13 by a set of opposite, spaced away arms 23, thereby defining an open space 25 over the hole 21.
3 o The hole 21 made in the ring 19 is sized to receive and let pass the head portion 7 of the tip 3 crimped to the end of the cable 1.
Claims
The cable 1 can be assembled to the hook 11 disclosed hereinabove as follows.
First of all, the tip 3 is inserted into the hole 21 of the ring 19 until its head portion 7 extends in the open space 25, as is shown in Figures 5 and 6. Then, a strong pressure is exerted onto the ring 19 in a direction transversal to the plane where the arms 23 extend (se the arrows P in Figures 6 and 7) so as to deform this ring and cause it to fit onto and around the body portion 5 of the tip 3. When such a "pinching" is completed, the tip 3 becomes trapped within the ring 19 because its head portion 7 cannot pass anymore through the deformed hole 21. The tip 3 and the cable 1 crimped to it, may however freely rotate within the deformed hole 21, thereby giving to the resulting assembly the requested freedom mentioned hereinabove.
Of course, numerous modifications could be made to the preferred embodiment disclosed hereinabove without departing from the scope of the invention.
First of all, the tip 3 is inserted into the hole 21 of the ring 19 until its head portion 7 extends in the open space 25, as is shown in Figures 5 and 6. Then, a strong pressure is exerted onto the ring 19 in a direction transversal to the plane where the arms 23 extend (se the arrows P in Figures 6 and 7) so as to deform this ring and cause it to fit onto and around the body portion 5 of the tip 3. When such a "pinching" is completed, the tip 3 becomes trapped within the ring 19 because its head portion 7 cannot pass anymore through the deformed hole 21. The tip 3 and the cable 1 crimped to it, may however freely rotate within the deformed hole 21, thereby giving to the resulting assembly the requested freedom mentioned hereinabove.
Of course, numerous modifications could be made to the preferred embodiment disclosed hereinabove without departing from the scope of the invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002268463A CA2268463A1 (en) | 1999-04-19 | 1999-04-19 | Fastening assembly for connecting a cable to a clasping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002268463A CA2268463A1 (en) | 1999-04-19 | 1999-04-19 | Fastening assembly for connecting a cable to a clasping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2268463A1 true CA2268463A1 (en) | 2000-10-19 |
Family
ID=29588725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002268463A Abandoned CA2268463A1 (en) | 1999-04-19 | 1999-04-19 | Fastening assembly for connecting a cable to a clasping device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2268463A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1353089A3 (en) * | 2002-04-12 | 2004-12-01 | Erico International Corporation | Suspension system |
-
1999
- 1999-04-19 CA CA002268463A patent/CA2268463A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1353089A3 (en) * | 2002-04-12 | 2004-12-01 | Erico International Corporation | Suspension system |
| US7039987B2 (en) | 2002-04-12 | 2006-05-09 | Erico International Corporation | Suspension system |
| US7150078B2 (en) | 2002-04-12 | 2006-12-19 | Erico International Corporation | Suspension system |
| US7346962B2 (en) | 2002-04-12 | 2008-03-25 | Erico International Corporation | Suspension system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |