Coupling unit
AssigneeTannus Co., Ltd.
InventorYoung Gi Lee
Life of this patent
Estimating the term…
Abstract
Provided is a coupling unit for coupling a tire to a rim, the coupling unit including an upper surface, a lower surface, and side surfaces, in which a maximum length of the coupling unit is larger than a distance between both hooks of the rim, the side surfaces include sliding areas that are slidable with respect to the hooks of the rim such that the coupling unit is easily inserted into the rim while the coupling unit is being inserted into the rim, and in a state in which the coupling unit is completely inserted into the rim, at least a part of the upper surface is in surface contact with lower surfaces of the hooks to prevent the coupling unit from being separated from the rim.
Claims13
A coupling unit for coupling a tire to a rim, the coupling unit comprising:
- a left member;
- a right member;
- and
- a middle member between the left member and the right member,
- wherein one or more left grooves are formed in a left portion of a central portion of an upper surface of the middle member and/or one or more right grooves are formed in a right portion of the central portion of the upper surface of the middle member;
- wherein the coupling unit comprise:
- a maximum length L satisfying the following equation 1,
- L
- ≥
- (
- L
- R
- +
- P
- -
- 1
- 2
-
- h
- )
- 2
- +
- (
- H
- R
- +
- R
- )
- 2
- [
- equation
-
-
- 1
- ]
- where LR denotes a length between hooks of the rim, P denotes a maximum length by which the hooks protrude from inner walls of a flange of the rim, R denotes ½ of a thickness of the hooks, h denotes a maximum height from an upper surface to a lower surface of the coupling unit, and HR denotes a height of the inner walls of the flange;
- wherein the maximum height h satisfies the following equation 2,
- h≤HR;
- [equation 2]
- wherein the coupling unit comprises:
- a minimum length l between the left member and the right member, the minimum length l satisfying the following equation 3,
- l≤√{square root over ((LR+P−b)2+(HR+R)2)} [equation 3]
- where b denotes a larger one of h and (L−l)/2.
A coupling unit for coupling a tire to a rim, the coupling unit comprising:
- a left member;
- a right member;
- and
- a middle member between the left member and the right member,
- wherein one or more left grooves are formed in a left portion of a central portion of an upper surface of the middle member and/or one or more right grooves are formed in a right portion of the central portion of the upper surface of the middle member;
- wherein the left member and/or the right member include sliding areas that are slidable with respect to hooks of the rim while the coupling unit is being inserted into the rim;
- and
- wherein the sliding areas have a length c satisfying the following equation 1;
- c
- <
- 110
-
- %
- ×
- π
- 2
-
- (
- Δ
-
-
- a
- )
- 2
- +
- (
- Δ
-
-
- b
- )
- 2
- 2
- [
- equation
-
-
- 1
- ]
- where Δa denotes a length transversely extending from a distal end of the lower surface to an intersecting point between a transverse extending virtual line of an uppermost portion of the upper surface and a vertical extending virtual line of one distal end of a longest portion of the coupling unit, and Δb denotes a length vertically extending from a distal end of the lower surface to an intersecting point between a transverse extending virtual line of an uppermost portion of the upper surface and a vertical extending virtual line of one distal end of a longest portion of the coupling unit.
Dependencies are inferred from the claim text.