KR101656345B1 - Tire having rim protector - Google Patents

Tire having rim protector Download PDF

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Publication number
KR101656345B1
KR101656345B1 KR1020150105594A KR20150105594A KR101656345B1 KR 101656345 B1 KR101656345 B1 KR 101656345B1 KR 1020150105594 A KR1020150105594 A KR 1020150105594A KR 20150105594 A KR20150105594 A KR 20150105594A KR 101656345 B1 KR101656345 B1 KR 101656345B1
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KR
South Korea
Prior art keywords
rim protector
tire
rim
hollow portion
present
Prior art date
Application number
KR1020150105594A
Other languages
Korean (ko)
Inventor
조명국
박상욱
변길재
Original Assignee
넥센타이어 주식회사
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Application filed by 넥센타이어 주식회사 filed Critical 넥센타이어 주식회사
Priority to KR1020150105594A priority Critical patent/KR101656345B1/en
Application granted granted Critical
Publication of KR101656345B1 publication Critical patent/KR101656345B1/en

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    • 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
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • 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
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B60C13/002—Protection against exterior elements
    • 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
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B60C13/02—Arrangement of grooves or ribs
    • 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
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B60C2013/005—Physical properties of the sidewall rubber
    • B60C2013/007—Thickness

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

The present invention relates to a tire having a rim protector. According to the present invention, the tire having a rim protector comprises: a bead unit mounted in a rim; a rim protector formed on the outer surface of the bead unit in a circumferential direction; a hollow unit formed in the rim protector in a circumferential direction; an opening unit formed outside the hollow unit in a circumferential direction and providing a passage connected to the inside of the hollow unit; and an upper protrusion protruding downward from an upper end of the opening unit and a lower protrusion protruding upward from a lower end of the opening unit. The purpose of the present invention is to provide the tire having a rim protector, preventing an inner surface of a groove from being rapidly worn and destroyed.

Description

[0001] The present invention relates to a tire having a rim protector,

The present invention relates to a tire, and more particularly, to a tire having a rim protector.

Recently, the width of the tire is widening. And the material of the rim is changing from steel to aluminum. For this reason, the outer side surface of the bead portion and the rim flange portion often come into contact with an obstacle on the road, such as a road boundary stone, and are damaged. In addition, there is a problem in that the tire is widened to enlarge the ground surface, thereby increasing the load transferred to the bead portion, thereby damaging the bead portion.

In order to solve such a problem, a tire having a rim protector protruding from the outer surface of the tire outside the bead has been developed.

However, the rim protector of the tire having the above rim protector lowers the ride quality and causes the generation of heat and noise due to friction with the rim due to the thick rubber thickness. Accordingly, a tire having a rim protector that changes the shape of a rim protector as disclosed in EP-A-0983875A2 has been proposed.

Hereinafter, a tire having a conventional rim protector disclosed in European Patent Publication No. 0983875A2 will be described with reference to the drawings.

1 is a cross-sectional view of a tire having a conventional rim protector.

Referring to FIG. 1, a conventional tire 1 having a rim protector includes a rim protector 20 formed in a sidewall 10 and a groove 30 formed in a rim protector 20 in a circumferential direction.

The tire 1 having such a conventional rim protector can improve the riding comfort by deforming the rim protector 20 by the groove 30 during running and reduce the heat generation and noise due to friction between the rim protector 20 and the rim .

However, in the conventional tire 1 having the rim protector, the inner surfaces of the grooves 30 are in contact with each other during the handling, causing friction, which may cause rapid wear and breakage.

Further, when the tire 1 having the conventional rim protector is continuously subjected to a large load, a part of the groove 30 is closed and the effect of the groove 30 is not generated.

European Patent Publication No. 0983875A2 (entitled " Pneumatic tire ", published on Aug. 10, 2000)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a friction stir welding tool capable of preventing rapid wear and breakage due to friction generated when inner surfaces of grooves contact each other during handling, The present invention also provides a tire having a rim protector that can generate an effect due to a groove even when the tire is received.

In order to accomplish the above object, according to the present invention, there is provided a tire having a rim protector, comprising: a bead portion seated in a rim; A rim protector formed on an outer surface of the bead along a circumferential direction; A hollow portion formed along the circumferential direction of the rim protector; An opening formed along the circumferential direction on the outside of the hollow portion and providing a passage for entering the inside of the hollow portion; An upper protrusion protruding downward from an upper end of the opening, and a lower protrusion protruding upward from a lower end of the opening.

Here, the cross-sectional diameter of the hollow portion may be 1 mm to 5 mm.

The cross-sectional shape of the hollow portion may be a dome-shaped.

The length of the upper protrusion and the length of the lower protrusion may be 0.5 mm to 2 mm.

The plurality of upper protrusions and the plurality of lower protrusions may be arranged such that each of the plurality of upper protrusions is sandwiched between two of the plurality of lower protrusions, .

According to the tire having the rim protector according to the present invention, since the inner surfaces of the hollow portions do not contact each other during handling, rapid wear and breakage due to friction occurring when the inner surfaces of the hollow portions are in contact with each other can be prevented .

1 is a cross-sectional view of a tire having a conventional rim protector.
2 is a partial cross-sectional view of a tire having a rim protector according to an embodiment of the present invention.
3 is a partial perspective view of a tire having a rim protector according to an embodiment of the present invention.
4 is a partial side view of a tire having a rim protector according to an embodiment of the present invention.
5 is a partial side view of a tire having a rim protector according to another embodiment of the present invention.
6 and 7 are views for explaining the action and effect of a tire having a rim protector according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, which will be described in detail so as to enable those skilled in the art to easily carry out the present invention , And this does not mean that the technical idea and scope of the present invention are limited.

Hereinafter, a tire having a rim protector according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a partial cross-sectional view of a tire having a rim protector according to an embodiment of the present invention, FIG. 3 is a partial perspective view of a tire having a rim protector according to an embodiment of the present invention, FIG. 5 is a partial side view of a tire having a rim protector according to another embodiment of the present invention. FIG. 5 is a partial side view of a tire having a rim protector according to an embodiment of the present invention.

2 to 4, a tire 100 having a rim protector according to an embodiment of the present invention includes a bead 110 that is seated on a rim 190, A rim protector 120 formed along a circumferential direction of the rim protector 120 and a hollow portion 130 formed along the circumferential direction of the rim protector 120. The rim protector 120 is formed along the circumferential direction outside the hollow portion 130, An upper protrusion 150 protruding downward from an upper end of the opening 140 and a lower protrusion 160 protruding upward from a lower end of the opening 140 may be included in the opening 140, . And a sidewall 180 connecting the tread portion 170 and the bead portion 110 to form a side surface of the tire 100 having the rim protector.

The bead portion 110, the rim protector 120, the tread portion 170, the sidewall 180, and the rim 200 are generally known, and therefore, a detailed description thereof will be omitted.

If the cross-sectional diameter D of the hollow portion 130 is less than 1 mm, the function of the hollow portion 130 is lost. If the hollow portion 130 exceeds 5 mm, the thickness of the rim protector 120 exceeds the thickness of the rim protector 120, do. Therefore, the cross-sectional diameter D of the hollow portion 130 may be 1 mm to 5 mm.

The cross-sectional shape of the hollow portion 130 may be dome-shaped.

The cross-sectional width W of the opening 140 may be less than the cross-sectional diameter D of the hollow portion 130. Accordingly, even when the upper portion and the lower portion of the opening 140 are in contact with each other, a part of the hollow portion 130 can be held as a space.

If the length d1 of the upper protrusion 150 and the length d2 of the lower protrusion 160 are less than 0.5 mm, the opening 140 can not be closed. If the length d2 is more than 2 mm, 130). The length d1 of the upper protrusion 150 and the length d2 of the lower protrusion 160 may be 0.5 mm to 2 mm at half the diameter D of the upper portion of the hollow portion 130. [

Each of the upper protrusions 150 and the lower protrusions 160 includes a plurality of upper protrusions 150 and each of the plurality of lower protrusions 160 has a plurality of lower protrusions 160, As shown in FIG.

5, the upper protrusions 150 and the lower protrusions 160 may be formed in the opening 140. However, the present invention is not limited thereto. For example, as shown in FIG. 5, The protrusion 250 protrudes from one of the upper and lower ends and the groove 260 into which the protrusion 250 is inserted.

Hereinafter, actions and effects of a tire having a rim protector according to an embodiment of the present invention will be described with reference to the drawings.

6 and 7 are views for explaining the action and effect of a tire having a rim protector according to an embodiment of the present invention.

6, when the load applied to the tire 100 having the rim protector according to an embodiment of the present invention is a general load, the hollow portion 130 is maintained as a space, and the opening portion 140 is opened . At this time, the hollow portion 130 performs the function of the groove disclosed in European Patent Publication No. 0983875A2.

Referring to FIG. 7, when the load applied to the tire 100 having the rim protector according to an embodiment of the present invention is large, a portion of the hollow portion 130 Space.

Accordingly, the inner surfaces of the hollow portion 130 are not in contact with each other during handling, thereby preventing rapid wear and breakage due to friction occurring when the inner surfaces of the hollow portion 130 contact each other.

Further, a part of the hollow portion 130, which is held as a space, alleviates the impact due to vibration and cools the rim protector 120.

Further, when the opening 140 is completely closed, a portion of the hollow portion 130 is maintained as a space regardless of the load applied to the tire 100 having the rim protector according to an embodiment of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. will be. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: Tire with rim protector 110:
120: rim protector 130: hollow part
140: opening 150: upper projection
160: Lower protrusion 170: Tread portion
180: Sidewall 190: Rim

Claims (5)

A bead portion seated in the rim;
A rim protector formed on an outer surface of the bead along a circumferential direction;
A hollow portion formed along the circumferential direction of the rim protector;
An opening formed along the circumferential direction on the outside of the hollow portion and providing a passage for entering the inside of the hollow portion;
An upper protrusion protruding downward from an upper end of the opening portion, and
And a lower protrusion protruding upward from a lower end of the opening,
The upper protrusions and the lower protrusions are respectively plural,
Each of the plurality of upper projections is disposed so as to be sandwiched between two lower projections of the plurality of lower projections so as to close the opening and at least part of the hollow portion As a space,
Tire with rim protector. The method according to claim 1,
Wherein the hollow portion has a cross-sectional diameter of 1 mm to 5 mm. The method according to claim 1,
Wherein the hollow portion has a dome-like cross-sectional shape. The method according to claim 1,
Wherein a length of the upper protrusion and a length of the lower protrusion are 0.5 mm to 2 mm. delete
KR1020150105594A 2015-07-27 2015-07-27 Tire having rim protector KR101656345B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150105594A KR101656345B1 (en) 2015-07-27 2015-07-27 Tire having rim protector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150105594A KR101656345B1 (en) 2015-07-27 2015-07-27 Tire having rim protector

Publications (1)

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KR101656345B1 true KR101656345B1 (en) 2016-09-23

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101871301B1 (en) * 2016-12-16 2018-06-26 넥센타이어 주식회사 Pneumatic tire having rim protector
KR102325376B1 (en) * 2020-07-17 2021-11-12 넥센타이어 주식회사 Tire
KR102388855B1 (en) 2020-10-20 2022-04-22 금호타이어 주식회사 Pneumatic tire having attachable rim protector member
KR20220105917A (en) 2021-01-21 2022-07-28 넥센타이어 주식회사 Tire with improved durability
KR20220115721A (en) * 2021-02-10 2022-08-18 한국타이어앤테크놀로지 주식회사 Tire having the non-exposed type wear indicator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000071721A (en) * 1998-08-31 2000-03-07 Sumitomo Rubber Ind Ltd Pneumatic tire
EP0983875A2 (en) 1998-08-31 2000-03-08 Sumitomo Rubber Industries Ltd. Pneumatic tyre
JP2013139219A (en) * 2012-01-05 2013-07-18 Toyo Tire & Rubber Co Ltd Pneumatic tire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000071721A (en) * 1998-08-31 2000-03-07 Sumitomo Rubber Ind Ltd Pneumatic tire
EP0983875A2 (en) 1998-08-31 2000-03-08 Sumitomo Rubber Industries Ltd. Pneumatic tyre
JP2013139219A (en) * 2012-01-05 2013-07-18 Toyo Tire & Rubber Co Ltd Pneumatic tire

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101871301B1 (en) * 2016-12-16 2018-06-26 넥센타이어 주식회사 Pneumatic tire having rim protector
KR102325376B1 (en) * 2020-07-17 2021-11-12 넥센타이어 주식회사 Tire
KR102388855B1 (en) 2020-10-20 2022-04-22 금호타이어 주식회사 Pneumatic tire having attachable rim protector member
KR20220105917A (en) 2021-01-21 2022-07-28 넥센타이어 주식회사 Tire with improved durability
KR20220115721A (en) * 2021-02-10 2022-08-18 한국타이어앤테크놀로지 주식회사 Tire having the non-exposed type wear indicator
KR102610694B1 (en) 2021-02-10 2023-12-07 한국타이어앤테크놀로지 주식회사 Tire having the non-exposed type wear indicator

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