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US 10,737,536 B2Granted
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.
Claims12
A coupling unit for coupling a tire to a rim, the coupling unit comprising:
- a middle member;
- a left member extending leftward from the middle member;
- and
- a right member extending rightward from the middle member,
- wherein the left member and the right member include first side surfaces and second side surfaces,
- wherein the second side surfaces include sliding areas that are slidable with respect to hooks of the rim while the coupling unit is being inserted into the rim,
- wherein a maximum length L of the coupling unit is longer than a distance between one side flange inner wall and another side flange inner wall of the rim such that the coupling unit is elastically bent and deformed in a state in which at least a part of a first side surface of the left member is in surface contact with a left inner wall of a flange of the rim and at least a part of a first side surface of the right member is in surface contact with a right inner wall of the flange of the rim,
- wherein the first side surface of the left member and/or the first side surface of the right member is in surface contact with flange inner walls of the rim by an elastic bending restoring force acting by the elastic bending and deformation, and
- wherein the maximum length L satisfies the following equation 1:
- L
- ≤
- 1.1
- ×
- 2
- ×
- 2
-
- π
- ×
- c
- ×
- sin
- -
- 1
-
- (
- a
- c
- )
- /
- 2
-
- π
- ,
- [
- equation
-
-
- 1
- ]
- where
- a
- =
- 1
- 2
-
- (
- L
- R
- +
- 2
-
- P
- )
- ,
-
- c
- =
- (
- L
- R
- +
- 2
-
- P
- )
- 2
- 8
-
- (
- H
- R
- -
- h
- )
- +
- (
- H
- R
- -
- h
- )
- 2
- ,
- LR denotes a length between the hooks of the rim, P denotes a maximum length by which the hooks protrude from the flange inner walls, h denotes a maximum height from an upper surface to a lower surface of the coupling unit, and HR denotes a height of the flange inner walls.
82 more elements
A coupling unit for coupling a tire to a rim, the coupling unit comprising:
- a middle member;
- a left member extending leftward from the middle member;
- and
- a right member extending rightward from the middle member,
- wherein the left member and the right member include first side surfaces and second side surfaces;
- wherein the second side surfaces include sliding areas that are slidable with respect to hooks of the rim while the coupling unit is being inserted into the rim;
- wherein a maximum length L of the coupling unit is longer than a distance between one side flange inner wall and another side flange inner wall of the rim such that the coupling unit is elastically bent and deformed in a state in which at least a part of a first side surface of the left member is in surface contact with a left inner wall of a flange of the rim and at least a part of a first side surface of the right member is in surface contact with a right inner wall of the flange of the rim;
- wherein the first side surface of the left member and/or the first side surface of the right member is in surface contact with flange inner walls of the rim by an elastic bending restoring force acting by the elastic bending and deformation;
- and
- wherein the coupling unit comprises:
- a maximum height h from an upper surface to a lower surface thereof, the maximum height h satisfying the following equation 1,
- h
- =
- H
- R
- -
- (
- 0.9
- ×
- 1
- 2
-
- L
- )
- 2
- -
- (
- 1
- 2
-
- (
- L
- R
- +
- 2
-
- P
- )
- )
- 2
- [
- equation
-
-
- 1
- ]
- where L denotes a maximum length of the coupling unit, LR denotes a length between the hooks of the rim, P denotes a maximum length by which the hooks protrude from the flange inner walls, and HR denotes a height of the flange inner walls.
44 more elements
A coupling unit for coupling a tire to a rim, the coupling unit comprising:
- a middle member;
- a left member extending leftward from the middle member;
- and
- a right member extending rightward from the middle member,
- wherein the left member and the right member include first side surfaces and second side surfaces;
- wherein the second side surfaces include sliding areas that are slidable with respect to hooks of the rim while the coupling unit is being inserted into the rim;
- wherein a maximum length L of the coupling unit is longer than a distance between one side flange inner wall and another side flange inner wall of the rim such that the coupling unit is elastically bent and deformed in a state in which at least a part of a first side surface of the left member is in surface contact with a left inner wall of a flange of the rim and at least a part of a first side surface of the right member is in surface contact with a right inner wall of the flange of the rim;
- wherein the first side surface of the left member and/or the first side surface of the right member is in surface contact with flange inner walls of the rim by an elastic bending restoring force acting by the elastic bending and deformation;
- wherein the maximum length L satisfies 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 the flange inner walls, 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 flange inner walls;
- wherein the maximum height h satisfies the following equation 2,
- h≤HR;
- and [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.
42 more elements
Dependencies are inferred from the claim text.