Anti-slipping device for dual tires

• US 7,712,497 B2
• Filed: 05/01/2008
• Issued: 05/11/2010
• Est. Priority Date: 05/01/2007
• Status: Active Grant

• Current Assignee: Autotrax International Pte., Ltd.
• Original Assignee: SCS Systems Co., Ltd.
• Inventors: Shin, Dae Kyun
• Primary Examiner(s): Bellinger; Jason R
• Application Number:
  US12/113,498
• Publication Number:
  US 20080271828A1
• Time in Patent Office: 740 Days
• Field of Search: 152/213.R, 152216-217, 152219-222, 152/225.R, 152226-230
• US Class Current: 152/220
• CPC Class Codes: B60C 27/22 for tandem tyres

Abstract

Provided is an anti-slipping device for dual tires including: a plurality of spike members 100 which comprises an insertion plate 110 bent in a trapezoidal shape to be inserted between the dual tires, and close-contact plates 120 integrally extending from opposite sides of the insertion plate 110 to closely contact each surface of the dual tires; a belt 200 connecting the insertion plates 110 of the plurality of spike members 100 to each other; and a fastener 300 coupled to opposite ends of the belt 200 to adjust tension of the belt, wherein the fastener 300 includes first and second connection rings 330a and 330b each inserted into insertion space parts 201a and 210b formed at both ends of the belt 200, and a belt fastener 340 detachably coupled to the first and second connection rings 330a and 330b to adjust tension of the belt 200, thereby stably providing running performance and braking power to minimize a risk of a slipping accident.

Claims

1. An anti-slipping device for dual tires comprising:

a plurality of spike members which comprises an insertion plate bent in a trapezoidal shape to be inserted between the dual tires, and close-contact plates integrally and laterally extending from opposite sides of the insertion plate to contact each surface of the dual tires;

a belt connecting the insertion plates of the plurality of spike members to each other; and

a fastener coupled to opposite ends of the belt to adjust tension of the belt,

wherein the fastener includes first and second connection rings each inserted into insertion space parts formed at both ends of the belt, and a belt fastener detachably coupled to the first and second connection rings to adjust tension of the belt,

wherein the belt fastener comprises a length adjustment part having a first fastening ring at one end of the length of the adjustment part detachably coupled to the first connection ring, and a plurality of length adjustment holes formed in a longitudinal direction of the length adjustment part at predetermined intervals; and

a tensioning member having a second fastening ring at one end of the tensioning member coupled to the second connection ring, such that the other end of the length adjustment part is slidably inserted inside the second fastening ring to sequentially lock or release the length adjustment holes using a predetermined resilient force to maintain tension of the belt.

2. The anti-slipping device according to claim 1, wherein the outer surface of the close-contact plate of the spike member is provided with at least one first recessed part having a straight shape to prevent the spike member from bending.

3. The anti-slipping device according to claim 1, wherein a plurality of first and second spikes protrude from an outer surface of each close-contact plate of the plurality of spike members at regular intervals to be different in height from each other.

4. The anti-slipping device according to claim 3, wherein the plurality of first spikes are lengthwise arranged on a middle of the close-contact plate at regular intervals, and comprises a hole penetrating the close-contact plate and a cylindrical projection integrally protruding from an outer circumference of the hole.

5. The anti-slipping device according to claim 4, wherein a top surface of the projection is formed with an uneven part having a saw-tooth shape for increasing friction with the road surface.

6. The anti-slipping device according to claim 3, wherein the plurality of second spikes are arranged in a zigzag pattern or a W-shape between the plurality of first spikes.

7. The anti-slipping device according to claim 3, wherein a protrusion further protrudes from an outer periphery of the close-contact plate.

8. The anti-slipping device according to claim 1, wherein the outer surface of the close-contact plate of the spike member is provided with at least one second recessed part formed in a straight shape to prevent the spike member from bending.

9. The anti-slipping device according to claim 1, wherein a pair of third recessed parts each having a V-shape protrude from opposite positions where the insertion plate and the close-contact plates of the spike member are connected, to prevent the spike member from bending.

10. The anti-slipping device according to claim 1, wherein a fourth recessed part further projects from an outer surface of the close-contact plate adjacent to a connection part of the insertion plate and the close-contact plate of each spike member to prevent damage to the spike member.

12. The anti-slipping device according to claim 1, wherein the length adjustment part has a predetermined radius of curvature.

13. The anti-slipping device according to claim 1, wherein the length adjustment part comprises a plurality of separated length adjustment members and a connection wire connected to the length adjustment members, wherein each length adjustment member has a plurality of length adjustment holes formed in a longitudinal direction thereof at predetermined intervals, and the connection wire is inserted into outer peripheries of the length adjustment members such that ends of the length adjustment members are in contact with each other.

14. The anti-slipping device according to claim 13, wherein a first length adjustment member installed at one end of the length adjustment part has a pair of first protrusions protruding from both long side surfaces of the length adjustment part, first connection holes are formed in the pair of first protrusions in a longitudinal direction of the length adjustment part to insert or extract the connection wire into or from the connection holes, and a first fastening ring is formed at one end of the length adjustment part to be coupled to the first connection ring, and

a second length adjustment member installed at the other end of the length adjustment part has a second protrusion protruding from an outer periphery of the second length adjustment part, and a second connection hole is formed in the second protrusion in a longitudinal direction thereof to insert or extract the connection wire into or from the second connection hole.

15. The anti-slipping device according to claim 14, wherein at least one third length adjustment member is further installed between the first and second length adjustment members,

wherein a pair of third protrusions project from both long side surfaces of the third length adjustment member, and third connection holes are formed in the pair of third protrusions in a longitudinal direction thereof to insert or extract the connection wire into or from the third connection holes.

16. The anti-slipping device according to claim 1, wherein the tensioning member comprises:

a mounting plate in which the length adjustment part is inserted and mounted;

a second locking ring fixedly formed at one end of the mounting plate to be detachably coupled to the second ring;

a pair of first and second support plates vertically bent from both sides of the mounting plate and parallelly aligned with each other;

an insertion guide shaft disposed under one ends of the first and second support plates at both ends of the insertion guide shaft and fixed at a predetermined height such that the other end of the length adjustment part is slidably inserted;

a first hinge shaft fixedly coupled to one upper sides of the first and second support plates at both ends of the first hinge shaft;

a locking pivot pin pivotally coupled to a center part of the first hinge shaft, and having a locking fixing piece and a locking release piece formed at both ends of the locking pivot pin to lock and release the length adjustment holes when the length adjustment pad is inserted;

a second hinge shaft fixedly coupled to the other upper sides of the first and second support plates at both ends of the second hinge shaft; and

a spring having a predetermined resilient force, pivotally coupled to one side of the second hinge shaft, one end of which is fixedly coupled to an outer side of the other end of the first support plate, and the other end of which resiliently supports an upper surface of the locking fixing piece is locked by the length adjustment hole.

17. The anti-slipping device according to claim 16, wherein the tensioning member further comprises a cover fixedly coupled to upper surfaces of the pair of first and second support plates, and a locking bolt threadedly fastened to a threaded hole formed at a center of the cover to be in contact with an upper surface of the locking fixing piece at a tip of the locking bolt to prevent pivotal movement of the locking pivot pin due to an external force.

18. The anti-slipping device according to claim 17, wherein the tensioning member further comprises a locking piece formed at the tip of the locking bolt to prevent separation of the locking bolt from the threaded hole.

11. An anti-slipping device for dual tires comprising:

a plurality of spike members which comprises an insertion plate bent in a trapezoidal shape to be inserted between the dual tires, and close-contact plates integrally and laterally extending from opposite sides of the insertion plate to contact each surface of the dual tires;

a belt connecting the insertion plates of the plurality of spike members to each other; and

a fastener coupled to opposite ends of the belt to adjust tension of the belt,

wherein the fastener includes first and second connection rings each inserted into insertion space parts formed at both ends of the belt, and a belt fastener detachably coupled to the first and second connection rings to adjust tension of the belt,

wherein an auxiliary plate is further fixed to an inner surface of each spike member, wherein the auxiliary plate includes an insertion plate having the same shape as the spike member, and close-contact plates integrally extending from opposite sides of the insertion plate to contact each surface of the dual tires.