KR20120067433A - Vehicle tire improved bead member - Google Patents

Vehicle tire improved bead member Download PDF

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Publication number
KR20120067433A
KR20120067433A KR1020100128818A KR20100128818A KR20120067433A KR 20120067433 A KR20120067433 A KR 20120067433A KR 1020100128818 A KR1020100128818 A KR 1020100128818A KR 20100128818 A KR20100128818 A KR 20100128818A KR 20120067433 A KR20120067433 A KR 20120067433A
Authority
KR
South Korea
Prior art keywords
bead
fixing pin
carcass
bead portion
tire
Prior art date
Application number
KR1020100128818A
Other languages
Korean (ko)
Other versions
KR101209088B1 (en
Inventor
김영진
Original Assignee
한국타이어 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 한국타이어 주식회사 filed Critical 한국타이어 주식회사
Priority to KR1020100128818A priority Critical patent/KR101209088B1/en
Publication of KR20120067433A publication Critical patent/KR20120067433A/en
Application granted granted Critical
Publication of KR101209088B1 publication Critical patent/KR101209088B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/10—Rims characterised by the form of tyre-seat or flange, e.g. corrugated
    • B60B21/102—Rims characterised by the form of tyre-seat or flange, e.g. corrugated the shape of bead seats
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/02—Seating or securing beads on rims
    • B60C15/024—Bead contour, e.g. lips, 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
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/18—Tyre cooling arrangements, e.g. heat shields
    • B60C23/19—Tyre cooling arrangements, e.g. heat shields for dissipating heat
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/02—Seating or securing beads on rims
    • B60C15/024—Bead contour, e.g. lips, grooves, or ribs
    • B60C2015/0245—Bead lips at the bead toe portion, i.e. the axially and radially inner end of the bead

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

Abstract

PURPOSE: A vehicle tire having an improved bead portion is provided to reduce the rupture accidents and element separation of a bead portion through reducing the dragging out of a carcass by using a fixing pin pressurizing and threading the carcass. CONSTITUTION: A vehicle tire having improved bead portion comprises a tread, the sidewall(2) of the both sides of a tread, a bead portion(3) in the lower portion of the sidewall. The bead portion comprises a bead core, a bead filler, a carcass(6), and chaffers(7, 71). A fixing pin(8) is installed in the circumscribed portion of the bead portion contacted with a rim flange.

Description

Vehicle tire improved bead member

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire for an automobile, and more particularly, to an improvement in a bead portion, and more particularly, a phenomenon in which a carcass is pulled down from a bead portion and the carcass is separated from an adjacent member at the bead portion, and further, a rupture phenomenon occurs. The present invention relates to an improved bead portion in a heavy duty vehicle tire.

In heavy-duty tires, the ends of the second and third belts at the tread and the carcass ends at the bead are the most vulnerable parts that are heavily stressed. In particular, in the bead part, accidents occur most frequently when overloading, and such accidents include bead separation between components forming a bead and bead bursts in which such separation phenomenon is developed.

Heavy-duty vehicle tires are subjected to constant tension and compression movement at the end of the carcass when driving, which causes the carcass to be pulled down, and the carcass that is being pulled down rotates the bead core.

This movement eventually separates the elements forming the bead portion, and when the separation between these elements progresses, the carcass turn up is released and a burst accident occurs in the bead portion. .

In order to prevent the separation (Bead Sepa.) Or bead (Bad Burst) between the bead components, it is conventional to form a layer of reinforcement at the carcass end or to concentrate the stress at the carcass end I have been trying to disperse. However, despite such efforts, it was impossible to completely eliminate the bead accident.

Accordingly, the present invention is to solve the problem of providing a tire that can reduce the element separation and rupture accident in the bead portion.

In order to solve the above problems, the present invention sees that the accident in the bead part is drawn down by the carcass, and attempts to reduce the accident of the bead part by providing a means of preventing the carcass from being drawn down. As a means for preventing the carcass from being pulled down, the present invention provides a means for stitching and pressing the carcass with a fixing pin that sticks inward from the outside of the bead portion to prevent the carcass from being pulled out.

According to the present invention, which provides the above means, when the tire is mounted on the rim, the rim pushes the fixing pin inward, and the fixing pin pushed inward seizes and presses the carcass to suppress the phenomenon of the carcass being pulled down. Therefore, it is effective to reduce the carcass segregation and the resulting bead rupture accident.

1 is a cross-sectional view of the main portion of an embodiment of the present invention
Figure 2 is an enlarged cross-sectional view of the bead portion of the main portion of the present invention
Figure 3 is a view showing an embodiment of pressing the carcass cord as an example of the fixing pin

The tread 1, sidewalls 2 on both sides of the tread 1, and bead portions 3 on the lower side of the sidewalls 2, and the bead portion 3 comprises a bead core 4 and a bead filler 5 ), And the carcass 6 and the chafers 7 and 71 surrounding them, the present invention relates to an external portion 31 which is a portion of the outer portion of the bead portion 3 in contact with the rim flange. Provided is a tire that is made by sticking the fixing pin (8).

It is preferable that eight fixing pins 8 are installed at equal intervals along the circumference of the bead portion 3. And this fixing pin (8) is 14mm in width (W) and 6.5mm in length (l) to have a force enough to block the pull down force of the carcass, as shown in Figure 3 attached And a thickness d of 1 mm, and the semicircular grooves are preferably formed at an interval of 2 mm so as to receive and press the carcass cord 61 therein.

In order to stick the fixing pin 8 from the outside to the inside of the bead portion, a cutout portion through which the fixing pin 8 may pass may be formed in the chafers 7 and 71.

The fixing pin 8 is installed with the outer end exposed to the outside of the bead portion 3, and when such a tire is mounted on the rim, the inner surface of the rim pushes the fixing pin 8 inward and the bead portion 3 It's stuck inside.

1. Tread
2. Sidewall
3. Bead portion
4. Bead Core
5. Bead Filler
6. Carcass
7, 71. Chaper
8. Push pin

Claims (5)

The tread 1, sidewalls 2 on both sides of the tread 1, and bead portions 3 on the lower side of the sidewalls 2, and the bead portion 3 comprises a bead core 4 and a bead filler 5 ) And the carcass 6 and the chafers 7 and 71 which surround them, the bead part 3 in the external part 31 which is a part which contacts the lim flange of the outer part of the bead part 3. An automobile tire with improved bead portion, characterized in that it is made by sticking the fixing pin (8) along the perimeter.
The bead part according to claim 1, wherein the fixing pin (8) has a width (W) of 14 mm, a length of 6.5 mm, and a thickness of 1 mm, and a semicircular groove is formed at an inner side at intervals of 2 mm. One car tire.
The fixing pin (8) according to claim 1 or 2, wherein the fixing pin (8) is installed with its outer end exposed to the outside of the bead (3), and when the tire is mounted on the rim, the inner surface of the rim is provided with the fixing pin (8). An automobile tire improved by the bead part, which is pushed inward and is inserted into the bead part 3.
3. The cutting part according to claim 1 or 2, characterized in that a cutout portion through which the fixing pin 8 can pass is formed in the chafers 7 and 71 in order to insert the fixing pin 8 from the outside to the inside of the bead portion. Automobile tire which improved bead part.
4. The bead portion according to claim 3, wherein a cutout portion through which the fixing pin 8 can pass is formed in the chafers 7 and 71 in order to insert the fixing pin 8 from the outside to the inside of the bead portion. Car tires.
KR1020100128818A 2010-12-16 2010-12-16 Vehicle tire improved bead member KR101209088B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100128818A KR101209088B1 (en) 2010-12-16 2010-12-16 Vehicle tire improved bead member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100128818A KR101209088B1 (en) 2010-12-16 2010-12-16 Vehicle tire improved bead member

Publications (2)

Publication Number Publication Date
KR20120067433A true KR20120067433A (en) 2012-06-26
KR101209088B1 KR101209088B1 (en) 2012-12-06

Family

ID=46686436

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100128818A KR101209088B1 (en) 2010-12-16 2010-12-16 Vehicle tire improved bead member

Country Status (1)

Country Link
KR (1) KR101209088B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10923067B2 (en) 2017-12-12 2021-02-16 Samsung Display Co., Ltd. Display device and a method of driving the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007245980A (en) * 2006-03-17 2007-09-27 Bridgestone Corp Pneumatic tire
JP2008126693A (en) 2006-11-16 2008-06-05 Bridgestone Corp Carcass ply fixing structure of pneumatic tire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10923067B2 (en) 2017-12-12 2021-02-16 Samsung Display Co., Ltd. Display device and a method of driving the same

Also Published As

Publication number Publication date
KR101209088B1 (en) 2012-12-06

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