CA1268693A - Tire chain system - Google Patents
Tire chain systemInfo
- Publication number
- CA1268693A CA1268693A CA000509442A CA509442A CA1268693A CA 1268693 A CA1268693 A CA 1268693A CA 000509442 A CA000509442 A CA 000509442A CA 509442 A CA509442 A CA 509442A CA 1268693 A CA1268693 A CA 1268693A
- Authority
- CA
- Canada
- Prior art keywords
- cable
- drum
- casing
- tensioning device
- opening
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
- B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
- B60C27/10—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables having tensioning means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A cable tensioning device for use on tire traction aids is defined by a hollow casing with an opening in at least one end thereof, a drum rotatably mounted in the casing for rotating around an axis perpendicular to the opening, a cable connected to the drum for winding thereon to draw the cable into the casing, a lever mounted on the drum outside of the casing for rotating the drum to tension the cable, and a hook on the outer end of the lever for engaging the cable in the tension position to lock the drum in the cable tensioning position. The casing can be a rectangular parallelopiped or disc-shaped.
A cable tensioning device for use on tire traction aids is defined by a hollow casing with an opening in at least one end thereof, a drum rotatably mounted in the casing for rotating around an axis perpendicular to the opening, a cable connected to the drum for winding thereon to draw the cable into the casing, a lever mounted on the drum outside of the casing for rotating the drum to tension the cable, and a hook on the outer end of the lever for engaging the cable in the tension position to lock the drum in the cable tensioning position. The casing can be a rectangular parallelopiped or disc-shaped.
Description
~.~ E;136~3 This invention relates to a cable tensioning device, and in particular to a device for tensioning the cable or chain of a traction aid for tires.
When mounting chains or cables with ground engaging studs attached thereto on a tire, some form of tensioning device is required. Various devices of this type have been proposed, including the conventional turnbuckle. Examples of such tensioning devices are found in U.S. Patents Nos. 2,324,463, which issued to V.E. Brady on July 20, 1943 and 2,455,878 which issued to C. Sadowdky on December 7, 1984. The problems with earlier devices include unnecessaxy complexity or lack of positive locking action~ i.e. the failure to incorporate a locking element in the tensioning device for positively locking a cable or chain in the tensioned position.
The object of the present invention is to overcome the drawbacks of existing tensioning devices by providing a relatively simple tensioning device, which provides for positive locking of the cable in the tensioned condition.
Accordingly, the present invention relates to a cable tensioning device for tensioning a ~able on a vehicle tire comprising hollow casing means with an opening in at least one end thereof; drum means rotatably mounted in said casing means for rotating around an axis perpendicular to the opening; cable means connected to said drum means for winding thereon to draw said cable means into said casing means; lever means on said drum ., - . . .
:: . ;..
86~ 3 means outside of said casing means for rotating said drum means for tensioning the cable; and hook means on said lever means for engaging the cable means in the tensioned condition to lock the drum means in the cable tensioning position.
The invention will now be described in gxeater detail with reference to the accompanying drawings, which illustrate preferred embodiments of the invention~ and wherein:
Figure 1 is a perspective view from one end of a cable tensioning device in accordance with the present invention;
Figure 2 is a rear elevatlon view of the device of Fig. l;
Figure 3 is a perspective view of a drum used in the device of Figs. 1 and 2;
Figure 4 is a longitudinal sectional view of the device of Figs. 1 and 2 illustrating the operation thereof;
Figure 5 is a perspective view of a second embodiment of the tensioning device of the present invention;
Figure 6 is a rear elevation view of the device of Fig. 5, Figure 7 is a perspective view of a drum used in the device of Figs. 5 and 6;
Figure 8 is a longitudinal sectional view of the device of Figs. 5 and 6 illustrating the use thereof; a~d Figure 9 is a plan view of a traction aid for use on vehicle tires.
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., : . :
~L~6~ 3 With re~erence to Figs. 1 to 4, one embodiment of the tensioning device of the present invention includes a hollow, rectangular parallelepipedic, metal casing 1 defined by two metal panels 2 and 3 with bent ends defining closed top and bottom walls 4 and 5 respectively of the casing 1. It will be appreciated that the terms "top" and "bottom" are used arbitrarily in connection with the device as illustrated in the drawings. The casing 1 has opposed open ends 6.
A drum 8 (Fig. 3~ is rotatably mounted in the casing 1. The drum 8 includes a large diameter, central cylindrical portion 9 bordered by a pair of annular flanges 10. Short shafts 11 and 12 extend outwardly from opposite ends of the drum 8 for rotatably mounting the drum in the casing 1. One shaft 12 extends outwardly through the wall 2 of the casing 1. A lever 14 is mounted on the shaft 12, and is held thereon by a nut 15.
The lever 14 includes a generally T-shaped outer end 16. The two top arms of which define a pair o~ hooks 17. The lever is stepped at lB so that the hooks 17 are located in substantially the same plane as the cable 19.
A length of cable 19 extends through the cylindrical Gentre 9 of the drum 8. Hooks 20 are provided on the opposed, outer ~ree ends 21 of the cable 19. Four concave rollers 23 are mounted in the casing l near the corners thereof on rivets 24.
Referring to Figs. 5 to 8, a second embodiment of the invention includes a disc-shaped casing 26 defined by front and ,., ~:, .
~2~6~6~3 rear walls 27 and 28, respectively and a ring 30 forming a side wall. A hook 32 is attached to the ring 30 on one side thereof, and a slot 33 is provided in the opposite side of th~ ring. A drum 35 is rotatably mounted in the casing 27.
The drum 35 includes a cylindrical centre portion 36 bordered by a pair of annular flanges 37, and short cylindrical shafts 38 and 39 for rotatably mounting the drum in the casing 26.
A rectangular notch 41 is provided in the shaft 38 for receiving the square end 42 of a lever 43, which is used to rotate the drum 35 in the casing 27. The lever 43 is held on the drum 35 by a bolt 44. The lever 43 tapers outwardly, and opposed hooks 46 are provided on the outer free end thereof. One end of a short cable 48 is mounted in the drum 35, and extends outwardly through the slot 33 between a pair of concave rollers 49. The rollers 49 are mounted on rivets 51 which are also used with other rivets 52 to connect the sides 27 and 28 of the casing 26 to each other and to the ring 30. A hook 54 is provided on the outer free end of the cable 48.
With reference to Fig. 9, both embodiments of the invention are used to interconnect loops 56 on the ends of cables 57 defining the sides of a traction aid. A plurality of arcuate strips of metal or cleats 59 with ground engaging projections 60 extend between the cables 57 along the length thereof for gripping the ground when the traction device is placed on a tire. A traction aid is wrapped around ~he tire so ~ , ~ ::
: ;. ... :
-,, ..
~26~3 that the loops 56 are in close proximity to each other.
Using the device of Figs. 1 to 4, the loops 56 of one cable 57 are attached to the hooks 20 and the lever 14 is rotated. As the lever 14 is rotated, the effective length of S the cable 19 is shortened to tension the cable 57. With the cable 57 tensioned, one of the hooks 17 i5 engaged with the cable 19 to prevent unwinding of the cable 19, i.e. to maintain the cable 57 in the tensioned condition.
When using the embodiment of the invention illustrated in Figs. 5 to 8, one loop 56 on a cable 57 is attached to the hook 32, and the other loop 56 is attached to the hook 54. The lever 43 is rotated to wind the cable 48 onto the drum 35, which tensions the cable 57. With the cable 57 tensioned, one of the hooks 46 is engaged with the cable 48 to prevent unwinding of the drum 35 and the cable 48, thus locking the cable 57 in the tensioned condition.
Thus, there has been defined a relatively simple cable tensioning device which is easy to use.
.
,-~-. :. - :
:
When mounting chains or cables with ground engaging studs attached thereto on a tire, some form of tensioning device is required. Various devices of this type have been proposed, including the conventional turnbuckle. Examples of such tensioning devices are found in U.S. Patents Nos. 2,324,463, which issued to V.E. Brady on July 20, 1943 and 2,455,878 which issued to C. Sadowdky on December 7, 1984. The problems with earlier devices include unnecessaxy complexity or lack of positive locking action~ i.e. the failure to incorporate a locking element in the tensioning device for positively locking a cable or chain in the tensioned position.
The object of the present invention is to overcome the drawbacks of existing tensioning devices by providing a relatively simple tensioning device, which provides for positive locking of the cable in the tensioned condition.
Accordingly, the present invention relates to a cable tensioning device for tensioning a ~able on a vehicle tire comprising hollow casing means with an opening in at least one end thereof; drum means rotatably mounted in said casing means for rotating around an axis perpendicular to the opening; cable means connected to said drum means for winding thereon to draw said cable means into said casing means; lever means on said drum ., - . . .
:: . ;..
86~ 3 means outside of said casing means for rotating said drum means for tensioning the cable; and hook means on said lever means for engaging the cable means in the tensioned condition to lock the drum means in the cable tensioning position.
The invention will now be described in gxeater detail with reference to the accompanying drawings, which illustrate preferred embodiments of the invention~ and wherein:
Figure 1 is a perspective view from one end of a cable tensioning device in accordance with the present invention;
Figure 2 is a rear elevatlon view of the device of Fig. l;
Figure 3 is a perspective view of a drum used in the device of Figs. 1 and 2;
Figure 4 is a longitudinal sectional view of the device of Figs. 1 and 2 illustrating the operation thereof;
Figure 5 is a perspective view of a second embodiment of the tensioning device of the present invention;
Figure 6 is a rear elevation view of the device of Fig. 5, Figure 7 is a perspective view of a drum used in the device of Figs. 5 and 6;
Figure 8 is a longitudinal sectional view of the device of Figs. 5 and 6 illustrating the use thereof; a~d Figure 9 is a plan view of a traction aid for use on vehicle tires.
':. , ' .: .. ~:
. .
.. :. ~--: ,., .
:::~:
., : . :
~L~6~ 3 With re~erence to Figs. 1 to 4, one embodiment of the tensioning device of the present invention includes a hollow, rectangular parallelepipedic, metal casing 1 defined by two metal panels 2 and 3 with bent ends defining closed top and bottom walls 4 and 5 respectively of the casing 1. It will be appreciated that the terms "top" and "bottom" are used arbitrarily in connection with the device as illustrated in the drawings. The casing 1 has opposed open ends 6.
A drum 8 (Fig. 3~ is rotatably mounted in the casing 1. The drum 8 includes a large diameter, central cylindrical portion 9 bordered by a pair of annular flanges 10. Short shafts 11 and 12 extend outwardly from opposite ends of the drum 8 for rotatably mounting the drum in the casing 1. One shaft 12 extends outwardly through the wall 2 of the casing 1. A lever 14 is mounted on the shaft 12, and is held thereon by a nut 15.
The lever 14 includes a generally T-shaped outer end 16. The two top arms of which define a pair o~ hooks 17. The lever is stepped at lB so that the hooks 17 are located in substantially the same plane as the cable 19.
A length of cable 19 extends through the cylindrical Gentre 9 of the drum 8. Hooks 20 are provided on the opposed, outer ~ree ends 21 of the cable 19. Four concave rollers 23 are mounted in the casing l near the corners thereof on rivets 24.
Referring to Figs. 5 to 8, a second embodiment of the invention includes a disc-shaped casing 26 defined by front and ,., ~:, .
~2~6~6~3 rear walls 27 and 28, respectively and a ring 30 forming a side wall. A hook 32 is attached to the ring 30 on one side thereof, and a slot 33 is provided in the opposite side of th~ ring. A drum 35 is rotatably mounted in the casing 27.
The drum 35 includes a cylindrical centre portion 36 bordered by a pair of annular flanges 37, and short cylindrical shafts 38 and 39 for rotatably mounting the drum in the casing 26.
A rectangular notch 41 is provided in the shaft 38 for receiving the square end 42 of a lever 43, which is used to rotate the drum 35 in the casing 27. The lever 43 is held on the drum 35 by a bolt 44. The lever 43 tapers outwardly, and opposed hooks 46 are provided on the outer free end thereof. One end of a short cable 48 is mounted in the drum 35, and extends outwardly through the slot 33 between a pair of concave rollers 49. The rollers 49 are mounted on rivets 51 which are also used with other rivets 52 to connect the sides 27 and 28 of the casing 26 to each other and to the ring 30. A hook 54 is provided on the outer free end of the cable 48.
With reference to Fig. 9, both embodiments of the invention are used to interconnect loops 56 on the ends of cables 57 defining the sides of a traction aid. A plurality of arcuate strips of metal or cleats 59 with ground engaging projections 60 extend between the cables 57 along the length thereof for gripping the ground when the traction device is placed on a tire. A traction aid is wrapped around ~he tire so ~ , ~ ::
: ;. ... :
-,, ..
~26~3 that the loops 56 are in close proximity to each other.
Using the device of Figs. 1 to 4, the loops 56 of one cable 57 are attached to the hooks 20 and the lever 14 is rotated. As the lever 14 is rotated, the effective length of S the cable 19 is shortened to tension the cable 57. With the cable 57 tensioned, one of the hooks 17 i5 engaged with the cable 19 to prevent unwinding of the cable 19, i.e. to maintain the cable 57 in the tensioned condition.
When using the embodiment of the invention illustrated in Figs. 5 to 8, one loop 56 on a cable 57 is attached to the hook 32, and the other loop 56 is attached to the hook 54. The lever 43 is rotated to wind the cable 48 onto the drum 35, which tensions the cable 57. With the cable 57 tensioned, one of the hooks 46 is engaged with the cable 48 to prevent unwinding of the drum 35 and the cable 48, thus locking the cable 57 in the tensioned condition.
Thus, there has been defined a relatively simple cable tensioning device which is easy to use.
.
,-~-. :. - :
:
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A cable tensioning device for tensioning a cable on a vehicle tire traction aid comprising hollow casing means with an opening in at least one end thereof; drum means rotatably mounted in said casing means for rotating around an axis per-pendicular to the opening; cable means connected to said drum means for winding thereon to draw said cable means into said casing means; lever means on said drum means outside of said casing means for rotating said drum means for tensioning the cable; and first hook means on said lever means for engaging the cable means in the tensioned condition to lock the drum means in the cable tensioning position.
2. A cable tensioning device according to claim 1, wherein said casing means defined a rectangular parallelpiped with opposed, open ends; and said cable means extends through said drum means and out of said open ends for engaging opposed ends of a traction aid cable.
3. A cable tensioning device according to claim 2, including roller means in each said open end for guiding said cable means into and out of said casing means.
4. A cable tensioning device according to claim 2, wherein said first hook means is located in substantially the same plane as the end of said cable means in said drum means.
5. A cable tensioning device according to claim 1, wherein said casing means is cylindrical with an opening in one side thereof, and second hook means on a second side thereof opposite said opening for connection to one end of the traction aid cable, said cable means extending outwardly through said opening for connection to the other end of the traction aid cable.
6. A cable tensioning device according to claim 5, including roller means in said casing means at each side of the opening for guiding said cable means into and out of said casing means.
7. A cable tensioning device according to claim 5, wherein said first hook means is located in substantially the same plane as the end of said cable means in said drum means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000509442A CA1268693A (en) | 1986-05-16 | 1986-05-16 | Tire chain system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000509442A CA1268693A (en) | 1986-05-16 | 1986-05-16 | Tire chain system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1268693A true CA1268693A (en) | 1990-05-08 |
Family
ID=4133162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000509442A Expired CA1268693A (en) | 1986-05-16 | 1986-05-16 | Tire chain system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1268693A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1072448A3 (en) * | 1999-07-26 | 2003-02-05 | König S.p.A. | Self-tensioning device for snow chains |
| EP3090886A1 (en) * | 2015-05-05 | 2016-11-09 | Pewag Schneeketten GmbH & Co KG | Anti-skid and ant-slide device for vehicle tires |
-
1986
- 1986-05-16 CA CA000509442A patent/CA1268693A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1072448A3 (en) * | 1999-07-26 | 2003-02-05 | König S.p.A. | Self-tensioning device for snow chains |
| EP3090886A1 (en) * | 2015-05-05 | 2016-11-09 | Pewag Schneeketten GmbH & Co KG | Anti-skid and ant-slide device for vehicle tires |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |