Classifications

• • 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
  • B60C7/00—Non-inflatable or solid tyres
• • 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
  • B60B3/02—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body integral with rim
• • 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
• • 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
  • B60B21/023—Rims characterised by transverse section the transverse section being non-symmetrical
• • 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
  • B60B21/028—Rims characterised by transverse section the shape of hump
• • 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
  • 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
  • B60B21/104—Rims characterised by the form of tyre-seat or flange, e.g. corrugated the shape of flanges
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
  • B60B21/00—Rims
  • B60B21/12—Appurtenances, e.g. lining bands

Definitions

• the subject of the invention is a wheel, composed of a disc and a rim, for a tire, and capable of possibly forming, with a ring for supporting the tread of the tire and the tire, a rolling assembly which can be useful in the case of driving where the inflation pressure drops abnormally compared to the normal working pressure, called nominal operating pressure, pressure may even become zero.
• European application EP 0 807 539 describes, by way of example, a wheel intended to effectively solve the above problem.
• This wheel comprises, seen in meridian section, a rim with first and second rim seats, at least the first rim seat having a generator whose axially outer end is on a circle with a diameter less than the diameter of the circle on which the axially inner end is located, the first rim seat being extended axially on the outside by a protrusion or hump of low height, and axially on the inside by a bearing intended to receive a tread support ring, and a wheel disc, joined on the side of the first rim seat to the radially inner wall of the rim.
• This wheel is such that the loose bearing, intended to receive the support ring, is provided with elements in relief separated by recesses or recesses.
• the subject of the invention is a wheel which appreciably improves the previous wheel.
• This wheel R is composed of a rim with first and second rim seats, at least the first rim seat having a generator whose axially outer end is on a circle with a diameter less than the diameter of the circle on which is located the axially inner end, said first rim seat being extended axially outside by a protrusion or hump of low height, and axially inside by a bearing intended to receive a tread support ring, and d 'A wheel disc, joined on the side of the first rim seat to the radially inner wall of the rim.
• This wheel R is characterized in that the rim surface consists of first and second support zones separated by a circumferential groove opening radially outward.
• the Applicant has in fact found that the presence of two support zones is sufficient to ensure good resistance to certain types of support rings, without the presence of the ribs being essential.
• This wheel has the advantage of significantly reducing the weight of the wheel.
• the circumferential groove can advantageously serve as a housing for a pressure monitoring device.
• This wheel has the advantage of having two support zones reduced to a minimum, which allows remarkable weight savings.
• the support function of the support ring is provided by a support of generally annular shape, with or without holes and which can be fixed to the wheel in a removable manner or not, or even fixed to the support ring. This wheel allows in particular to draw full-face wheels of acceptable weight.
• the wheel according to the invention can have a rim made from a metal sheet, steel or aluminum alloy.
• the disc can also be produced from such a metal sheet.
• the connection between the disc and the rim is then advantageously carried out by fitting under the circumferential groove.
• FIG. 1 is a meridian and schematic view of a monobloc wheel as described in the aforementioned European application;
• FIG. 1 is a top view of the rim of Figure 1;
• Figure 3 (a) is a meridian and schematic view of a one-piece wheel according to the invention and Figure 3 (b) is a variant of this wheel;
• FIG. 4 is a view, in meridian section, of a support ring of thermoplastic material
• FIG. 5 is a view, in meridian section, of a rubber support ring
• FIG. 6 is a view similar to Figure 2 of a one-piece wheel variant according to the invention, full face;
• FIG. 7 is a view similar to FIG. 2 of a sheet metal wheel according to the invention.
• Figure 8 shows a wheel identical to that of Figure 7 equipped with a pressure monitoring device.
• FIG. 1 shows, in meridian and schematic view, a monobloc wheel 1 as disclosed by patent application EP 0 807 539.
• This wheel comprises a rim 10 with two rim seats 13 ′ and 13 ′′ of equal diameters and whose generators are inclined outwards. The two seats are extended externally by projections or humps 15 'and 15 ".
• the external seat 13' is extended axially inwards by a seat 11, itself provided at its other end with a positioning stop 16 of a support ring intended to be mounted on this range 1 1.
• the inner seat 13 is extended axially inside by a rim flange 14, flange delimiting with the positioning stop 16 a mounting groove 12.
• the range 1 1 is provided with recesses 11 1 of triangular shape. These recesses 1 1 1 are delimited axially by the transverse ribs 113 of the bearing surface and circumferentially by circumferential ribs they 1 12.
• the wheel 2, shown in FIG. 3 (a), largely repeats the characteristics of the wheel 1 presented in FIG. 1. It differs therefrom, however, in that the diameters of the two seats 23 ′ and 23 "are uneven, the first seat 23 ', disposed on the outside of the wheel 2, having a diameter less than that of the second seat 13 ". This makes it possible to reduce the depth of the mounting groove 22.
• the bearing surface 21 of this wheel 2 is constituted by a first 211 and a second 212 bearing areas separated by a circumferential groove 213 opening radially outward.
• This circumferential groove makes it possible to substantially reduce the weight of the wheel 2 relative to the wheel 1 and greatly facilitates its production.
• the bearing surface 212 includes a radially outer projection 26 serving as an axial stop for a support.
• This projection can also be radially inner 26 ′ as illustrated in FIG. 3 (b).
• the internal surface of the support has a rib of suitable shape to come to lock inside when it is mounted on the wheel 2.
• Such a support is preferably made of rubber (see FIG. 5).
• the wheel 2 also has a valve hole 24 disposed in the outer flank 214 of the circumferential groove 213. This valve hole opens to the outside of the disc 20.
• the two support zones 21 1 and 212 are adapted to support a support ring such as that presented, in meridian section, in FIG. 4.
• This support ring 3 comprises an annular apex 31 intended to come into contact with the tire tread in the event of a severe decrease in tire inflation pressure.
• Two feet 32 and 33 extend radially inward from the top. These feet have their end adapted to come to bear, when the support ring is mounted on the wheel 2, against the two bearing areas 21 1 and 212.
• the support ring 3 can in particular be made of reinforced thermoplastic material. The shape of the support ring allows it to be ovalized when it is mounted in a tire, prior to mounting the tire and support ring assembly around the wheel 3.
• Such a support ring 4 comprises a base 41, of generally annular and reinforced shape. by a ply 41 1 oriented longitudinally, an apex 42, substantially annular, with on its radially outer wall longitudinal grooves 421 and an annular body 43 for connection between the base and the apex.
• the annular connecting body 43 has a first solid part 431 as well as a second part 432 comprising recesses extending axially over substantially more than half of the body 43 and opening out on the outside of the support. These recesses are regularly distributed over the circumference of the body 43 and define radial walls.
• the two support zones may have an insufficient surface area and this limits the effectiveness of rolling in support.
• FIG. 6 shows a monobloc wheel 5, in which the bearing surface 53 comprises two support zones 531 and 532 separated by a circumferential groove 533.
• the two support zones serve as support for a support 55 of a support ring similar to that of FIG. 5.
• the support 55 is annular and is a metallic ferrule with a projection 551, radially exterior and disposed at its axially interior end, intended to block the axial movement of the support ring.
• the support 55 is rigidly fixed to the bearing surface 53, for example by welding, crimping or gluing. It can also be detachably attached or be part of the support ring.
• This embodiment of a wheel according to the invention makes it possible to very substantially increase the axial width of the circumferential groove 533 and therefore to greatly reduce the total weight of the wheel. This is particularly important when designing wheels, such as that of FIG. 6, the disc 52 of which is joined to the rim 51 directly under the outer seat 54 '(full-face wheel).
• Figure 7 shows a wheel 6, similar to the monobloc wheel 2 of Figure 3, but obtained by assembling a rim 61 and a disc 62 made from steel sheets. The assembly is carried out by fitting the disc 62 under the circumferential groove 613. As previously, the valve 65 crosses the external flank of the groove 613 through the hole 64 and opens out to the outside of the disc 62.
• the wheel 6 can also be made of aluminum sheet.
• the base 41 of the support 4 preferably has its geometry outer adapted to come to rest against the side 614 and the bearing area 612.
• the circumferential groove of the wheels according to the invention can advantageously serve as a housing for a device for monitoring the pressure of the tires.
• This device 8 can in particular be fixed to the valve 65 as illustrated in FIG. 8.

Landscapes

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

Priority Applications (9)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

Family

ID=9528917

Family Applications (1)

Country Status (14)

Cited By (6)

Families Citing this family (13)

Citations (5)

Family Cites Families (5)

• 1998
  • 1998-07-20 FR FR9809387A patent/FR2781184A1/fr active Pending
• 1999
  • 1999-06-28 WO PCT/EP1999/004463 patent/WO2000005083A1/fr not_active Ceased
  • 1999-06-28 DE DE69901348T patent/DE69901348T2/de not_active Expired - Fee Related
  • 1999-06-28 PL PL99345582A patent/PL345582A1/xx not_active Application Discontinuation
  • 1999-06-28 KR KR1020017000813A patent/KR100602405B1/ko not_active Expired - Fee Related
  • 1999-06-28 JP JP2000561057A patent/JP2002521251A/ja active Pending
  • 1999-06-28 HU HU0104818A patent/HU222828B1/hu not_active IP Right Cessation
  • 1999-06-28 AU AU49016/99A patent/AU747482B2/en not_active Ceased
  • 1999-06-28 CA CA002337318A patent/CA2337318A1/fr not_active Abandoned
  • 1999-06-28 CN CNB998110787A patent/CN1137825C/zh not_active Expired - Fee Related
  • 1999-06-28 ES ES99932741T patent/ES2175997T3/es not_active Expired - Lifetime
  • 1999-06-28 EP EP99932741A patent/EP1098779B1/fr not_active Expired - Lifetime
  • 1999-06-28 BR BR9912290-1A patent/BR9912290A/pt not_active IP Right Cessation
• 2001
  • 2001-01-18 US US09/765,130 patent/US6470936B2/en not_active Expired - Fee Related

Patent Citations (5)

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