WO2001083240A1 - Jante pour roue élastique - Google Patents

Jante pour roue élastique Download PDF

Info

Publication number
WO2001083240A1
WO2001083240A1 PCT/JP2001/003577 JP0103577W WO0183240A1 WO 2001083240 A1 WO2001083240 A1 WO 2001083240A1 JP 0103577 W JP0103577 W JP 0103577W WO 0183240 A1 WO0183240 A1 WO 0183240A1
Authority
WO
WIPO (PCT)
Prior art keywords
rim
tire
elastic wheel
diameter
pair
Prior art date
Application number
PCT/JP2001/003577
Other languages
English (en)
Japanese (ja)
Inventor
Mamoru Horiuchi
Original Assignee
Bridgestone Corporation
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 Bridgestone Corporation filed Critical Bridgestone Corporation
Publication of WO2001083240A1 publication Critical patent/WO2001083240A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/04—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body not integral with rim, i.e. disc body and rim being manufactured independently and then permanently attached to each other in a second step, e.g. by welding
    • B60B3/041—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body not integral with rim, i.e. disc body and rim being manufactured independently and then permanently attached to each other in a second step, e.g. by welding characterised by the attachment of rim to wheel disc
    • B60B3/044—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body not integral with rim, i.e. disc body and rim being manufactured independently and then permanently attached to each other in a second step, e.g. by welding characterised by the attachment of rim to wheel disc characterised by cross-sectional details of the attachment, e.g. the profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/02—Rims characterised by transverse section
    • B60B21/026—Rims characterised by transverse section the shape of rim well
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/02—Rims characterised by transverse section
    • B60B21/04—Rims characterised by transverse section with substantially radial flanges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B9/00—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces
    • B60B9/02—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using springs resiliently mounted bicycle rims
    • B60B9/10—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using springs resiliently mounted bicycle rims of rubber or the like
    • B60B9/12—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using springs resiliently mounted bicycle rims of rubber or the like in the form of sleeves or rings concentric with the wheel axis

Definitions

  • the present invention relates to a rim for supporting a pneumatic tire of an elastic wheel used for a vehicle wheel, and more particularly to a rim for an elastic wheel in which a pneumatic tire and a core can be easily mounted.
  • the rim 31 has a pair of left and right flange portions 32, a pair of left and right bead seats 33 connected to the flange portion 31, and a tool connected between the bead seats 33. And a part 34.
  • a drop portion is provided in the bead portion 34 of the rim 31. The bead is dropped on this portion once when the tire is attached / detached, and then the bead on the opposite side is incorporated.
  • a pneumatic tire core that enables safe driving for a certain distance is generally widely known.
  • a conventional core for a pneumatic tire for example, a core described in Japanese Patent Publication No. 55-31883 is known. That is, two or more arc-shaped bodies are assembled in an annular shape by overlapping and connecting the ends thereof, and fitted to the outside of the rim portion of the rim on which the pneumatic tire is mounted.
  • Japanese Utility Model Application Laid-Open No. 59-187870 proposes a tire wheel that uses a spring as a vibration isolator to improve riding comfort. It is also known to use rubber as a vibration isolator and arrange it between the rim and the disk.
  • Japanese Utility Model Laid-Open No. 57-73203 discloses that the rim is rubber-like. There has been proposed a disk wheel configured to be connected to a disk via an elastic body. Further, Japanese Patent Application Laid-Open No.
  • 5-338410 discloses an elastic wheel in which a gap is formed between a rim and a disk wheel, and a vibration-proof rubber is interposed in the gap. Furthermore, WO 9833666 discloses a wheel / barrier assembly in which a rubber annular strip is arranged between an inner rim having the same profile as the rim and the rim. I have.
  • an object of the present invention is to solve the above-mentioned problems of the conventional rim, to easily perform the rim assembly, easily install the core as a runflat tire, and further to the elastic wheel.
  • An object of the present invention is to provide a rim for an elastic wheel capable of suppressing an in-tap. Disclosure of the invention
  • the present inventor has found that the above object can be achieved mainly by forming the wheel portion of the elastic wheel rim into a specific shape, thereby completing the present invention. Reached.
  • the present invention relates to a rim for an elastic wheel including a pair of left and right flange portions, a pair of left and right bead seats connected to the flange portion, and a wheel portion connected between the bead seats.
  • the roll portion has a protrusion having a cross section in the tire width direction outward in the tire radial direction and having a mountain shape, and a pair of drops is provided between the protrusion and the bead seats on both sides thereof.
  • the parts are formed continuously.
  • a cross-sectional shape of the protrusion in the tire width direction is substantially trapezoidal, and a diameter R 1 at a top of the protrusion is a diameter R at the bead seat. It is preferable that the diameter R ⁇ at the top of the protrusion is substantially equal to or smaller than the diameter R 2 at the end of the rim flange. The diameter R at the drop portion is the diameter R at the bead seat.
  • the length L ⁇ of the protrusion in the tire width direction is within a range of 30% to 60% of the rim width L0.
  • the length L in the tire width direction at the top of the protrusion Is preferably in the range of 15 to 60% of the rim width L0.
  • the elastic wheel rim of the present invention facilitates rim assembly as compared with conventional rims, and facilitates core mounting as a runflat tire. Further, when applied to an elastic wheel, an increase in inches can be suppressed. In particular, when one of the flange portions is made detachable, the rim assembling and the mounting of the core are further facilitated.
  • FIG. 1 is a sectional view of a rim for an elastic wheel according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of a partially cut-away portion of the elastic wheel rim shown in FIG.
  • FIG. 3 is a sectional view showing a state where a core and a tire are mounted on the elastic wheel rim shown in FIG. 1.
  • FIG. 4 is a sectional view showing an application example of the rim of the present invention to an elastic wheel.
  • FIG. 5 is a cross-sectional view showing another application example of the rim of the present invention to an elastic wheel.
  • FIG. 6 is a sectional view of a rim for an elastic wheel according to another embodiment of the present invention.
  • Fig. 7 is a cross section of the elastic wheel rim with one rim flange part detachable.
  • FIG. 8 is a sectional view of a conventional pneumatic tire rim. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 shows a cross section in the tire width direction of an elastic wheel rim according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of the elastic wheel rim with a part cut away.
  • a preferred example of the illustrated elastic wheel rim 1 includes a pair of left and right flange portions 2, a pair of left and right bead seats 3 connected to the flange portion 2, and a well portion 4 connected between the bead seats 3.
  • such a bead portion 4 has a protrusion 6 whose cross section in the tire width direction is formed in a chevron shape outward in the tire radial direction, and the protrusion 6 and the bead seats 3 on both sides thereof.
  • a pair of doping portions 5 are formed in series between them.
  • the cross-sectional shape of the protrusion 6 in the tire width direction is preferably substantially trapezoidal as shown in the figure when the core is mounted or applied to an elastic wheel as described later.
  • the diameter R, at the top of the projection 6 is the diameter R at the bead seat 3. It is preferable to make the rim larger than this because the core can be easily mounted, and when applied to an elastic wheel, the rim can be prevented from increasing in inches.
  • the diameter Ri at the top of the projection 6 is preferably substantially equal to or greater than the diameter Ro at the end of the rim flange 2. Make it smaller.
  • R 4 in the drop portion 5 is preferably a diameter R in the bead seat 3. 98% or less, more preferably 90% or less. If this value exceeds 98%, it will be difficult to perform rim assembly easily.
  • the length L i of the protrusion 6 in the tire width direction is preferably within a range of 30% to 60% of the rim width L 0 from the viewpoint of stability of the core, ease of mounting, and rim assemblability.
  • the length L ⁇ in the tire width direction at the top of the projection is preferably in the range of 15 to 60% of the rim width L 0.
  • the bead seat 3 of the rim goes to the drop part 5 at the center of the rim at an inclination angle of about 5 ° from the point ⁇ ⁇ indicating the rim diameter, and forms a hump part (not shown) as needed along the way. It is preferable to reach the deep bottom of the top portion 5. By doing so, the bead portion of the mounting tire is crimped to the bead seat 3, and the tire is sufficiently tightened.
  • the height of the hump provided is not particularly limited, and may be within a generally known range.
  • FIG. 3 shows a punctured state when the tire 20 and the core 21 are mounted on the rim 1 of the above-described preferred embodiment of the present invention.
  • the type of the core is not particularly limited, and a known type may be used.However, the width of the tire to which the contact portion of the core is attached is 0.3 to 0.3 of the tire width. It is preferable to set the range to 5 times in consideration of the point that the contact area after the internal pressure is reduced and the contact pressure is not excessively increased and the weight is reduced.
  • the pneumatic tire core 21 is fitted to the outside of the protrusion 6 of the rim 1.
  • the core 21 is assembled in an annular shape by, for example, overlapping and connecting the ends of two or more arc-shaped bodies.
  • the core 21 has a tire contact portion 22 that comes into contact with the inner surface of the crown portion of the pneumatic tire 20 when the pneumatic tire 20 is crushed due to a decrease in internal pressure, and a radial direction from the tire contact portion.
  • a member having a support portion 23 extending inward and a fitting portion 24 which is connected to the support portion and engages with the lug portion of the rim can be suitably used.
  • an elastic member such as an elastomer material or a spring material may be interposed between the inner peripheral surface of the projection 6 and the outer peripheral surface of the disk.
  • an elastic member such as an elastomer material or a spring material may be interposed between the inner peripheral surface of the projection 6 and the outer peripheral surface of the disk.
  • an elastic member 26a preferably made of a rubber elastic body, is annularly interposed between the rim 1 and the disk 25 to form an elastic wheel.
  • an elastic member 26a preferably made of a rubber elastic body, is annularly interposed between the rim 1 and the disk 25 to form an elastic wheel.
  • the disk 25 is integrated with the base slim, and a convex portion 27 is formed on the outer peripheral edge so as to protrude outward in the radial direction of the tire.
  • the member 26a is adhered, but the disk is not particularly limited to this shape, and a base rim is separately provided, and the disc is integrally or integrally fixed to the outer peripheral surface of the base slim.
  • An elastic member may be interposed between the protrusion 6 and a similar bonding portion. Further, the bonding of the elastic member can be performed by a bonding method such as vulcanization bonding.
  • the angle ⁇ 1 formed between the mountain-shaped inclined surface of the protrusion 6 of the rim 1 and the wheel equatorial plane E, and the angle formed between the surface of the disc outer peripheral surface where the elastic member is bonded and the wheel equatorial plane ⁇ It is not always necessary to be equal to 1.
  • the angles are preferably substantially equal.
  • both the angle ⁇ 1 and the angle 31 are 0 to 60 °, more preferably 0 to 30 °.
  • FIG. 5 shows another application example of the rim of the present invention to the elastic wheel.
  • an elastic member 26 b made of a rubber elastic body extends to the radially outer end of the upper portion 27 of the disk 25 in the tire radial direction.
  • an elastic member also exists between the vicinity of the top of the inner peripheral surface of the protrusion 6 of the rim 1 and the disk 25. Accordingly, in this case, the elastic member interposed between the inclined portion of the inner peripheral surface of the projection 6 and the disk 25 can provide the same effect of improving the ride comfort, vibration isolation, and sound insulation as described above.
  • the elastic member existing between the vicinity of the top of the inner peripheral surface of the projection 6 and the disk 25 acts as a stop.
  • FIG. 6 shows a cross section in the tire width direction of a rim 11 for a pneumatic tire according to another embodiment of the present invention.
  • the preferred example of the illustrated pneumatic tire rim 11 also has a pair of left and right flange portions 12 and a pair of left and right bead seats 13 connected to the flange portions 12 similarly to the preferred example described above.
  • a bead portion 14 extending between the bead seats 13, wherein the bead portion 14 has a projection 16 whose cross section in the tire width direction has a chevron shape toward the outside in the tire radial direction.
  • a pair of drop portions 15 are formed continuously.
  • the difference from the above preferred embodiment is that the inner diameters of the rims are all uniform as shown in the figure.
  • the inner diameter of the rim 11 is not made uniform, but the inner diameter of the projection 16 is made larger according to the shape of the projection 16 to reduce the weight. In addition, when applying elastic wheels, it is possible to suppress the increase in inches.
  • This rim has one flange part detachable by a bolt.
  • the rim assembly of the tire can be easily performed, the core can be easily mounted as a runflat tire, and further, when applied to an elastic wheel. Inch-up can be suppressed.

Landscapes

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

Abstract

La présente invention concerne une jante (1) destinée à un pneumatique, comprenant une paire de rebords latéraux gauche et droite (2), une paire de portées de talon latérales gauche et droite (3) se prolongeant par les rebords (2), et une partie gorge (4) disposée de manière continue entre les portées de talon (3). La partie gorge (4) est formée de sorte que sa section transversale comprend, dans la direction latérale d'un pneumatique, une partie en projection (6) ayant une forme à bords droits dans la direction radiale extérieure du pneumatique, et une paire de parties basses (5) disposées en continu entre la partie en projection et les portées de talon sur les deux côtés de la partie en projection. La réalisation de la jante de l'invention, ainsi que la mise en place d'une partie centrale qui permet de former un pneumatique avec lequel on peut rouler à plat, peuvent s'effectuer de manière simple, et une augmentation de diamètre peut être supprimée lorsque la jante est appliquée à une roue élastique.
PCT/JP2001/003577 2000-04-28 2001-04-25 Jante pour roue élastique WO2001083240A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000-129920 2000-04-28
JP2000129920 2000-04-28

Publications (1)

Publication Number Publication Date
WO2001083240A1 true WO2001083240A1 (fr) 2001-11-08

Family

ID=18639119

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/003577 WO2001083240A1 (fr) 2000-04-28 2001-04-25 Jante pour roue élastique

Country Status (1)

Country Link
WO (1) WO2001083240A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160318335A1 (en) * 2013-12-18 2016-11-03 ThyssenKrupp Carbon Components GmbH Wheel comprising a wheel rim and a wheel disc

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49124703A (fr) * 1973-03-31 1974-11-29
JPS60248403A (ja) * 1984-05-23 1985-12-09 Bridgestone Corp 自動車用ホイ−ルのリム構造
US4765382A (en) * 1987-07-20 1988-08-23 Sahagian Edward H Reinforced resilient wheel
JPH07290913A (ja) * 1994-04-27 1995-11-07 Masaaki Nishi タイヤ組立体用リム
WO1998033666A1 (fr) * 1997-01-31 1998-08-06 Kenneth Sydney Hoskins Reduction du bruit de roue

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49124703A (fr) * 1973-03-31 1974-11-29
JPS60248403A (ja) * 1984-05-23 1985-12-09 Bridgestone Corp 自動車用ホイ−ルのリム構造
US4765382A (en) * 1987-07-20 1988-08-23 Sahagian Edward H Reinforced resilient wheel
JPH07290913A (ja) * 1994-04-27 1995-11-07 Masaaki Nishi タイヤ組立体用リム
WO1998033666A1 (fr) * 1997-01-31 1998-08-06 Kenneth Sydney Hoskins Reduction du bruit de roue

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160318335A1 (en) * 2013-12-18 2016-11-03 ThyssenKrupp Carbon Components GmbH Wheel comprising a wheel rim and a wheel disc
US10583688B2 (en) * 2013-12-18 2020-03-10 ThyssenKrupp Carbon Components GmbH Wheel comprising a wheel rim and a wheel disc
US11541685B2 (en) 2013-12-18 2023-01-03 ThyssenKrupp Carbon Components GmbH Wheel comprising a wheel rim and a wheel disc

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