WO2013154154A1 - インナー多片リム - Google Patents
インナー多片リム Download PDFInfo
- Publication number
- WO2013154154A1 WO2013154154A1 PCT/JP2013/060924 JP2013060924W WO2013154154A1 WO 2013154154 A1 WO2013154154 A1 WO 2013154154A1 JP 2013060924 W JP2013060924 W JP 2013060924W WO 2013154154 A1 WO2013154154 A1 WO 2013154154A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rim
- ring
- surface portion
- bead seat
- gutter
- Prior art date
Links
- 239000011324 bead Substances 0.000 claims abstract description 115
- 230000002093 peripheral effect Effects 0.000 claims description 130
- DOSMHBDKKKMIEF-UHFFFAOYSA-N 2-[3-(diethylamino)-6-diethylazaniumylidenexanthen-9-yl]-5-[3-[3-[4-(1-methylindol-3-yl)-2,5-dioxopyrrol-3-yl]indol-1-yl]propylsulfamoyl]benzenesulfonate Chemical compound C1=CC(=[N+](CC)CC)C=C2OC3=CC(N(CC)CC)=CC=C3C(C=3C(=CC(=CC=3)S(=O)(=O)NCCCN3C4=CC=CC=C4C(C=4C(NC(=O)C=4C=4C5=CC=CC=C5N(C)C=4)=O)=C3)S([O-])(=O)=O)=C21 DOSMHBDKKKMIEF-UHFFFAOYSA-N 0.000 description 8
- 238000007789 sealing Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B11/00—Units comprising multiple wheels arranged side by side; Wheels having more than one rim or capable of carrying more than one tyre
- B60B11/06—Wheels with more than one rim mounted on a single wheel body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B25/00—Rims built-up of several main parts ; Locking means for the rim parts
- B60B25/002—Rims split in circumferential direction
- B60B25/004—Rims split in circumferential direction one rim part comprising the wheel disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B25/00—Rims built-up of several main parts ; Locking means for the rim parts
- B60B25/04—Rims with dismountable flange rings, seat rings, or lock rings
- B60B25/045—Rims with dismountable flange rings, seat rings, or lock rings on both sides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B25/00—Rims built-up of several main parts ; Locking means for the rim parts
- B60B25/04—Rims with dismountable flange rings, seat rings, or lock rings
- B60B25/08—Continuous flange rings; Arrangement of recesses enabling the flange rings to be slipped over the rim body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B25/00—Rims built-up of several main parts ; Locking means for the rim parts
- B60B25/04—Rims with dismountable flange rings, seat rings, or lock rings
- B60B25/14—Locking means for flange rings or seat rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/113—Production or maintenance time
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/50—Improvement of
- B60B2900/511—Sealing
- B60B2900/5116—Sealing against air-loss
Definitions
- the present invention relates to an inner multi-piece rim that is used on a construction vehicle or the like and is an inner side of a double wheel.
- FIG. 11 shows that the rim base 1a of the outer multi-piece rim 1 is removed from the hub 3 when the tire T1 attached to the outer multi-piece rim 1 on the outer side of the multi-wheel is removed from the rim base 1a of the outer multi-piece rim 1.
- the multi-wheel structure is disclosed in which the tire T2 attached to the inner multi-piece rim 2 which is the inner side of the multi-wheel can be removed from the rim base 2a of the inner multi-piece rim 2.
- the outer end portion of the outer rim base 1a of the outer multi-piece rim 1 is an outer gutter portion 1b having a lock ring groove and an O-ring groove.
- An outer lock ring 4a is attached to the outer gutter portion 1b, and an outer bead seat band 5a is fitted therein.
- An outer side ring 6a is fitted into the outer bead seat band 5a.
- the outer O-ring 7a is disposed between the outer gutter portion 1b and the outer bead seat band 5a.
- the rim base 1a of the rim base 1a of the outer multi-piece rim 1 is an inner gutter portion 1c having a lock ring groove and an O ring groove, which is the center side in the width direction of the vehicle.
- An inner lock ring 4b is attached to the inner gutter portion 1c, and an inner bead seat band 5b is fitted thereto, and an inner side ring 6b is fitted to the inner bead seat band 5b.
- the inner O-ring 7b is disposed between the inner gutter portion 1c and the inner bead seat band 5b.
- the rim axial direction outer side end which is the outer side in the vehicle width direction of the rim base 2a of the inner multi-piece rim 2 is an outer gutter portion 2b having a lock ring groove and an O ring groove.
- An outer lock ring 4a ′ is attached to the outer gutter portion 2b, and an outer bead seat band 5a ′ is fitted therein, and an outer side ring 6a ′ is fitted into the outer bead seat band 5a ′.
- the outer O-ring 7a ′ is disposed between the outer gutter portion 2b and the outer bead seat band 5a ′.
- the inner side in the rim axis direction, which is the center side in the vehicle width direction, of the rim base 2a of the inner multi-piece rim 2 is a back flange portion 2c. Only the inner side ring 6b 'is fitted to the back flange portion 2c.
- the outer lock ring 4a ′ of the inner multi-piece rim 2, the outer bead seat band 5a ′, the outer side ring 6a ′, the outer O-ring 7a ′, and the inner side ring 6b ′ are respectively the outer lock ring 4a of the outer multi-piece rim 1,
- the outer bead seat band 5a, the outer side ring 6a, the outer O-ring 7a, and the inner bead seat band 6b have the same shape.
- the tire T1 attached to the outer multi-piece rim 1 and the tire T2 attached to the inner multi-piece rim 2 are removed from the respective rim bases 1a and 2a, as shown in FIG. 12, the tire T1 has an outer bead seat band. 5a, the outer side ring 6a, the inner bead seat band 5b, and the inner side ring 6b are removed, but the tire T2 is removed by the assembly of the outer bead seat band 5a 'and the outer side ring 6a'. The Therefore, the assembly structure of the tire T2 is different from the assembly structure of the tire T1.
- the conventional inner multi-piece rim has the following problems. Since the assembly structure of the tire T2 is different from the assembly structure of the tire T1, when the tires T1 and T2 are removed and the positions of the tire T1 and the tire T2 are changed (the tire T1 is assembled to the rim base 2a of the inner multi-piece rim 2). When attaching the attached tire T2 to the rim base 1a of the outer multi-piece rim 1), the inner bead seat band 5b and the inner side ring 6b must be removed from the tire T1, and the inner bead seat band 5b and the inner bead are attached to the tire T2. The side ring 6b must be assembled, which takes time and effort. In addition, the spare tires must be in different assembly states when the tire T1 is replaced with a spare tire and when the tire T2 is replaced with a spare tire, which takes time and effort.
- An object of the present invention is to provide an inner multi-piece rim that can reduce labor and time in tire replacement as compared with the prior art.
- the present invention for achieving the above object is as follows.
- (1) (a) A rim base central portion, an outer gutter portion positioned on the outer side in the rim axis direction which is the outer side in the width direction of the vehicle from the rim base central portion, and a rim shaft which is on the center side in the width direction of the vehicle from the rim base central portion
- a rim base comprising an inner gutter portion located on the inner side in the direction, (B) an outer lock ring mounted in an outer lock ring groove provided in the outer gutter portion of the rim base; (C) an outer bead seat band fitted to the outer gutter portion of the rim base; (D) an outer O-ring disposed between the outer gutter portion and the outer bead seat band; (E) an outer side ring fitted to the outer bead seat band; (F) an inner bead seat band fitted to the inner gutter portion of the rim base; (G) an inner O-ring disposed between the inner gutter portion and the inner bead seat band; (H) an inner
- Inner multi-piece rim. (2) The inner multi-piece rim according to (1), wherein the O-ring axial support surface portion is continuous with the inclined surface portion.
- the outer peripheral surface of the inner gutter portion includes an O-ring radial support surface portion that supports the inner O-ring from the rim radial inner side
- the inner bead seat band includes a contact portion that is in contact with the horizontal surface portion of the inner gutter portion, a first inclined surface portion that extends from the contact portion toward the rim radial direction inside in the rim axial direction, and the first inclined surface portion.
- the inner O-ring is crushed by the first inclined surface portion or the second inclined surface portion of the inner bead seat band, the O-ring axial direction supporting surface portion, and the O-ring radial direction supporting surface portion, so that the inner gutter portion and the inner
- the inner multi-piece rim according to claim 1 or 2 wherein a space between the bead seat band is sealed.
- the inner multi-piece rim of (1) has an outer bead seat band, an outer side ring, an inner bead seat band, and an inner side ring, when removing the tire from the rim base of the inner multi-piece rim, the tire is attached to the outer bead seat. It can be removed by assembling the band, outer side ring, inner bead seat band and inner side ring. Therefore, the assembly structure of the tire removed from the rim base of the inner multi-piece rim can be made the same as the assembly structure of the tire removed from the rim base of the outer multi-piece rim.
- the positions can be changed without changing the respective assembly structures. It is also necessary to change the assembly structure of the spare tire when replacing the tire removed from the rim base of the inner multi-piece rim with a spare tire and when replacing the tire removed from the rim base of the outer multi-piece rim with a spare tire. Absent. Therefore, labor and time for tire replacement can be reduced as compared with the conventional case.
- the outer peripheral surface of the inner gutter portion includes an O-ring axial direction supporting surface portion that supports the inner O-ring from the inner side in the rim axial direction, and the O-ring axial direction supporting surface portion is at least partially outer than the horizontal plane portion in the rim radial direction. Therefore, the O-ring axial support surface portion is located on the inner peripheral side of the horizontal plane portion in the rim radial direction, even when the O-ring groove is provided in the inner gutter portion. The depth of can be reduced.
- the inner peripheral surface of the inner gutter part is larger in diameter than the inner peripheral surface of the outer gutter part and is the same diameter as the inner peripheral surface of the central part of the rim base, or the rim base to the extent that the fitting of the rim base to the vehicle hub is not hindered. Even when the diameter is smaller than the inner peripheral surface of the central portion, the strength of the inner gutter portion can be ensured.
- the outer peripheral surface of the inner gutter portion is located on the inner side in the rim axial direction than the horizontal surface portion, and is inclined toward the inner side in the rim axial direction and outward in the rim radial direction. Since the surface portion is provided, a lock ring (inner lock ring) for receiving the axial force of the inner bead seat band is unnecessary. Therefore, unlike the case where an inner lock ring is required, the inner O-ring can be prevented from being deformed due to a break for attaching / detaching the inner lock ring to / from the rim base, thereby preventing air leakage or damage. Therefore, unlike the case where an inner lock ring is required, the arrangement position of the inner O-ring can be prevented from being restricted by the inner lock ring. Therefore, the O-ring axial support surface portion can be positioned between the rim axial inner end of the horizontal surface portion and the rim axial inner end of the inclined surface portion in the rim axial direction.
- the O-ring axial direction support surface portion is continuous with the inclined surface portion, the O-ring axial direction support surface portion can be formed relatively easily, for example, by denting a part of the inclined surface portion inward in the rim axis direction.
- a substantially triangular space formed by the first inclined surface portion or the second inclined surface portion of the inner bead seat band, the O-ring axial direction supporting surface portion, and the O-ring radial direction supporting surface portion.
- the inner O-ring is crushed in the radial direction and axial direction of the inner multi-piece rim, so that the space changes due to elastic deformation of the inner bead seat band and the rim base components that occur when using the load of the inner multi-piece rim.
- the followability is good and the sealing effect can be kept high.
- Embodiments 2 to 6 of the present invention is also applicable to Embodiments 2 to 6 of the present invention. It is sectional drawing when a tire is removed from the outer multi-piece rim and the inner multi-piece rim of the multi-wheel structure having the inner multi-piece rim of Example 1 of the present invention. However, this figure can also be applied to Embodiments 2 to 6 of the present invention by changing the shape of the support portion of the inner O-ring of the inner multi-piece rim. It is a partial expanded sectional view of the O ring axial direction support surface part of an inner gutter part of the inner multiple piece rim of example 1 of the present invention, and its neighborhood.
- FIG. 1 to 5 show an inner multiple piece rim according to the first embodiment of the present invention
- FIG. 6 shows an inner multiple piece rim according to the second embodiment of the present invention
- FIG. 7 shows a third embodiment of the present invention
- 8 shows an inner multi-piece rim according to the fourth embodiment of the present invention
- FIG. 9 shows an inner multi-piece rim according to the fifth embodiment of the present invention
- FIG. These show the inner multiple piece rim of Example 6 of the present invention.
- IN indicates the inner side in the rim axis direction, which is the center side in the width direction of the vehicle
- OUT indicates the outer side in the rim axis direction, which is the outer side in the width direction of the vehicle.
- the inner multi-piece rim 20 is a multi-piece rim having a plurality of pieces used for a construction vehicle or the like as shown in FIG.
- the inner multiple piece rim 20 is a wheel on the inner side (the center side in the width direction of the vehicle) of the double wheel (rear double wheel).
- the inner multi-piece rim 20 may be a front wheel that is not a double wheel.
- An outer multi-piece rim 10 that is a wheel on the outer side (outer side in the width direction of the vehicle) of a double wheel (rear multi-wheel) is arranged on the outer side in the vehicle width direction from the inner multi-piece rim 20.
- the outer multi-piece rim 10 includes a rim base 11, an outer lock ring 12, an outer bead seat band 13, an outer O ring 14, an outer side ring 15, an inner lock ring 16, an inner bead seat band 17, and an inner An O-ring 18 and an inner side ring 19 are provided.
- the rim base 11 is formed separately from the vehicle hub 30 and is fixed to the hub 30.
- the inner diameter of the rim base 11 is larger than the outer peripheral surface of the hub 30 where the rim base 11 is disposed.
- the rim base 11 includes a rim base central portion 11a, an outer gutter portion 11b positioned outside the rim base central portion 11a in the rim axial direction which is the outer side in the width direction of the vehicle, and a rim shaft which is closer to the center in the width direction of the vehicle than the rim base central portion 11a.
- An inner gutter portion 11c located on the inner side in the direction.
- the outer gutter portion 11b and the inner gutter portion 11c may be formed integrally with the rim base central portion 11a, or may be formed separately from the rim base central portion 11a and welded to the rim base central portion 11a.
- the outer peripheral surfaces 11d and 11e of the outer gutter portion 11b and the inner gutter portion 11c are connected to the outer peripheral surface 11k of the rim base central portion 11a.
- the inner peripheral surfaces 11f and 11g of the outer gutter portion 11b and the inner gutter portion 11c are connected to the inner peripheral surface 11h of the rim base central portion 11a.
- the outer gutter part 11b and the inner gutter part 11c are provided with lock ring grooves and O-ring grooves that are recessed on the inner peripheral side on the outer peripheral surfaces 11d and 11e.
- the inner peripheral surfaces 11f and 11g of the outer gutter portion 11b and the inner gutter portion 11c have portions 11i and 11j located on the inner peripheral side from the inner peripheral surface 11h of the rim base central portion 11a.
- the outer peripheral surfaces 11d and 11e of the outer gutter portion 11b and the inner gutter portion 11c have the same diameter (including substantially the same diameter) except for the lock ring groove and the O-ring groove that are recessed on the inner peripheral side, and the rim base central portion 11a.
- the outer peripheral surface 11k has the same diameter (including substantially the same diameter) as the outer peripheral surfaces 11d and 11e of the outer gutter portion 11b and the inner gutter portion 11c excluding the lock ring groove and the O-ring groove.
- the diameter of the outer peripheral surface 11k of the rim base central portion 11a may be smaller than the diameters of the outer peripheral surfaces 11d and 11e of the outer gutter portion 11b and the inner gutter portion 11c excluding the lock ring groove and the O-ring groove.
- the outer peripheral surfaces 11d and 11e of the outer gutter portion 11b and the inner gutter portion 11c are formed in the rim axial direction of all the bead seat bands 13, 17, 23, and 26 except for the lock ring groove and the O-ring groove that are recessed on the inner peripheral side.
- the diameter may be larger than the outer peripheral surface 11k of the rim base central portion 11a to such an extent that the sliding is not hindered.
- the outer lock ring 12 having at least one cut in the circumferential direction is attached to the lock ring groove of the outer gutter portion 11b.
- An outer bead seat band 13 in which an axial force is received by the outer lock ring 12 is fitted to the outer gutter portion 11b, and an outer bead seat band 13 in which an axial force is received by the outer bead seat band 13 is fitted.
- a side ring 15 is fitted.
- the outer O-ring 14 is disposed between the outer gutter portion 11 b and the outer bead seat band 13, and seals between the outer gutter portion 11 b and the outer bead seat band 13.
- the outer O-ring 14 may be a belt-like ring having a sealing property.
- the outer O-ring 14 is disposed at a position separated from the outer lock ring 12 on the inner side in the rim axial direction in order to suppress damage due to interference with the outer lock ring 12 (cut).
- the outer O-ring 14 is mounted in the O-ring groove of the outer gutter portion 11b.
- the outer O-ring 14 is supported from the outer side in the rim axial direction and the inner side in the rim axial direction by the wall surface of the O-ring groove of the outer gutter portion 11b.
- the inner lock ring 16 having at least one cut in the circumferential direction is attached to the lock ring groove of the inner gutter portion 11c.
- An inner bead seat band 17 in which an axial force is received by the inner lock ring 16 is fitted to the inner gutter portion 11 c, and an inner force in which an axial force is received by the inner bead seat band 17 is fitted in the inner bead seat band 17.
- a side ring 19 is fitted.
- the inner O-ring 18 is disposed between the inner gutter portion 11 c and the inner bead seat band 17, and seals between the inner gutter portion 11 c and the inner bead seat band 17.
- the inner O-ring 18 may be a belt-like ring having a sealing property.
- the inner O-ring 18 is disposed at a position separated from the inner lock ring 16 on the outer side in the rim axial direction in order to prevent the inner O-ring 18 from being damaged by interference with the inner lock ring 16 (cut).
- the inner O-ring 18 is mounted in the O-ring groove of the inner gutter portion 11c.
- the inner O-ring 18 is supported from the inner side in the rim axial direction and the outer side in the rim axial direction by the wall surface of the O-ring groove of the inner gutter portion 11c.
- the rim base 11, the outer bead seat band 13, the outer O ring 14, the outer side ring 15, the inner bead seat band 17, the inner O ring 18 and the inner side ring 19 are continuous in the circumferential direction.
- the outer lock ring 12 and the inner lock ring 16 have a cut for attaching to and detaching from the rim base 11 at least in the circumferential direction, and both ends of the ring are opposed to each other in the circumferential direction.
- the inner multi-piece rim 20 includes a rim base 21, an outer lock ring 22, an outer bead seat band 23, an outer O ring 24, an outer side ring 25, an inner bead seat band 26, an inner O A ring 27 and an inner side ring 28 are provided.
- the rim base 21 is formed separately from the vehicle hub 30 and is fixed to the hub 30.
- the rim base 21 has a larger diameter than the outer peripheral surface of a portion of the hub 30 corresponding to a portion where the rim base 21 is disposed.
- the rim base 21 includes a rim base central portion 21a, an outer gutter portion 21b positioned on the outer side in the rim axis direction which is the outer side in the width direction of the vehicle than the rim base central portion 21a, and a rim shaft on the central side in the width direction of the vehicle from the rim base central portion 21a.
- An inner gutter portion 21c located on the inner side in the direction.
- the outer gutter portion 21b and the inner gutter portion 21c may be formed integrally with the rim base central portion 21a. As shown in FIGS. 2 and 3, the outer gutter portion 21b and the inner gutter portion 21c are formed separately from the rim base central portion 21a. It may be welded.
- the outer peripheral surface 21 d of the rim base central portion 21 a may have the same diameter (including substantially the same diameter) as the outer peripheral surface 11 k of the rim base central portion 11 a of the rim base 11 of the outer multi-piece rim 10.
- the inner bead seat bands 17 and 26 may be larger or smaller in diameter than the outer peripheral surface 11k of the rim base central portion 11a to the extent that the sliding in the rim axial direction of the inner bead seat bands 17 and 26 is not hindered.
- the outer peripheral surface 21d of the rim base central portion 21a and the outer peripheral surface 11k of the rim base central portion 11a of the rim base 11 of the outer multi-piece rim 10 are the outer peripheral surfaces 11d of the gutter portions 11b, 11c, and 21b. 11e, 21f and the inner multi-piece rim 20, the inner gutter portion 21c of the rim base 21 may have a smaller diameter than a later-described horizontal surface portion 21q.
- the inner peripheral surface 21e of the rim base central portion 21a may have the same diameter (including substantially the same diameter) as the inner peripheral surface 11h of the rim base central portion 11a of the rim base 11 of the outer multi-piece rim 10.
- the strength of the rim base 21 The diameter may be larger than the inner peripheral surface 11h of the rim base central portion 11a to such an extent that does not hinder.
- the outer peripheral surface 21f of the outer gutter portion 21b is continuous with the outer peripheral surface 21d of the rim base central portion 21a.
- the outer gutter portion 21b includes an outer lock ring groove 21k and an outer O-ring groove 21m that are recessed toward the inner periphery on the outer peripheral surface 21f.
- the outer peripheral surface 21f of the outer gutter portion 21b has the same diameter (including substantially the same diameter) as the outer peripheral surface 21d of the rim base central portion 21a except for the outer lock ring groove 21k and the outer O-ring groove 21m that are recessed on the inner peripheral side. ing.
- the diameter of the outer peripheral surface 21d of the rim base central portion 21a may be smaller than the diameter of the outer peripheral surface 21f of the outer gutter portion 21b excluding the outer lock ring groove 21k and the outer O-ring groove 21m.
- the outer peripheral surface 21f of the outer gutter portion 21b prevents all the bead seat bands 13, 17, 23, and 26 from sliding in the rim axial direction except for the outer lock ring groove 21k and the outer O-ring groove 21m that are recessed on the inner peripheral side.
- the diameter may be larger than the outer peripheral surface 21d of the rim base central portion 21a.
- the inner peripheral surface 21i of the outer gutter portion 21b is continuous with the inner peripheral surface 21e of the rim base central portion 21a.
- the inner peripheral surface 21i of the outer gutter portion 21b has a portion 21j located on the inner peripheral side from the inner peripheral surface 21e of the rim base central portion 21a.
- the outer lock ring groove 21k of the outer gutter portion 21b is fitted with an outer lock ring 22 having at least one cut in the circumferential direction.
- An outer bead seat band 23 in which an axial force is received by the outer lock ring 22 is fitted to the outer gutter portion 21 b, and the outer bead seat band 23 is an outer member in which an axial force is received by the outer bead seat band 23.
- a side ring 25 is fitted.
- the outer O-ring 24 is disposed between the outer gutter portion 21 b and the outer bead seat band 23, and seals between the outer gutter portion 21 b and the outer bead seat band 23.
- the outer O-ring 24 may be a belt-like ring having a sealing property.
- the outer O-ring 24 is disposed at a position separated from the outer lock ring 22 on the inner side in the rim axial direction in order to suppress damage due to interference with the outer lock ring 22 (cut).
- the outer O-ring 24 is mounted in the outer O-ring groove 21m.
- the outer O-ring 24 is supported from the outer side in the rim axial direction and the inner side in the rim axial direction by the wall surface of the outer O-ring groove 21m.
- the inner peripheral surface 21n of the inner gutter portion 21c is continuous with the inner peripheral surface 21e of the rim base central portion 21a.
- the inner peripheral surface 21n of the inner gutter portion 21c has the same diameter (including substantially the same diameter) as the inner peripheral surface 21e of the rim base central portion 21a.
- the inner peripheral surface 21n of the inner gutter portion 21c may have a smaller diameter than the inner peripheral surface 21e of the rim base central portion 21a so as not to prevent the rim base 21 from being fitted into the hub 30.
- the inner peripheral surface 21n of the inner gutter portion 21c may have a larger diameter than the inner peripheral surface 21i of the outer gutter portion 21b excluding the portion 21j.
- the outer peripheral surface 21p of the inner gutter portion 21c includes a horizontal surface portion 21q, an inclined surface portion 21r, an O-ring axial direction support surface portion 21s, and an O-ring radial direction support surface portion 21w.
- the horizontal surface portion 21q is continuous with the outer peripheral surface 21d of the rim base central portion 21a.
- the horizontal plane portion 21q has the same diameter (including substantially the same diameter) as the outer peripheral surface 21d of the rim base central portion 21a.
- the diameter of the outer peripheral surface 21d of the rim base central portion 21a may be smaller than the diameter of the horizontal surface portion 21q.
- the diameter of the horizontal surface portion 21q may be larger than the outer peripheral surface 21d of the rim base central portion 21a so as not to prevent the inner bead seat bands 17 and 26 from sliding in the rim axis direction.
- the diameter of the horizontal surface portion 21q is the same diameter (including substantially the same diameter) as the outer peripheral surface 21f of the outer gutter portion 21b.
- the inclined surface portion 21r is a flat surface that is inclined inward in the rim axis direction and on the outer peripheral side (outside in the rim radial direction). At least a part of the inclined surface portion 21r is located on the inner side in the rim axis direction than the horizontal surface portion 21q. The inclined surface portion 21r is located on the outer peripheral side (outer side in the rim radial direction) than the horizontal surface portion 21q. The inclined surface portion 21r is in surface contact with the second inclined surface portion 26a provided on the inner bead seat band 26 and receives an axial force (force in the rim axial direction) of the inner bead seat band 26.
- the O-ring axial support surface portion 21s supports the inner O-ring 27 from the inner side in the rim axial direction.
- the O-ring axial direction support surface portion 21s is located between the rim axial direction inner end portion 21t of the horizontal surface portion 21q and the rim axial direction inner end portion 21u (including both end portions) of the inclined surface portion 21r in the rim axial direction. .
- At least a part of the O-ring axial direction support surface portion 21s is on the outer peripheral side of the horizontal surface portion 21q in the rim radial direction.
- the O-ring axial direction support surface portion 21s may be a flat surface (the cross section is linear in FIG. 5), a surface having one or more bent portions, or a curved surface. Two or more of the composite surfaces may be used.
- the O-ring axial direction support surface portion 21s is continuous with the inclined surface portion 21r.
- the O-ring radial support surface portion 21w is located on the outer side in the rim axial direction of the O-ring axial support surface portion 21s.
- the O-ring radial direction support surface portion 21w supports the inner O-ring 27 from the radial inner side.
- the O-ring radial direction support surface portion 21w may be a flat surface (the cross section is linear in FIG. 5), a surface having one or more bent portions, or a curved surface. Two or more of the composite surfaces may be used.
- the O-ring radial direction support surface portion 21w is connected to the outer side in the rim axis direction of the O-ring axial direction support surface portion 21s.
- an inner bead seat band 26 in which an axial force is received by the inclined surface portion 21 r is fitted to the inner gutter portion 21 c, and an axial force is applied to the inner bead seat band 26.
- An inner side ring 28 received by the band 26 is fitted.
- the inner bead seat band 26 is connected to the first inclined surface portion 26b that extends from the contact portion 26c in contact with the horizontal surface portion 21q of the inner gutter portion 21c toward the rim radial direction inside in the rim axial direction, and the inclined surface portion of the rim base 21 connected to the first inclined surface portion 26b. It has an end inner surface shape composed of a second inclined portion 26a in surface contact with 21r.
- the inner O-ring 27 is disposed in a space between the inner gutter portion 21 c and the inner bead seat band 26, and seals between the inner gutter portion 21 c and the inner bead seat band 26.
- the inner O-ring 27 may be a belt-like ring having a sealing property.
- the groove 21v may be (i) provided between the horizontal surface portion 21q and the inclined surface portion 21r in the rim axial direction as shown in FIGS. 5 to 7, and (ii) as shown in FIG. It may be provided between the horizontal surface portion 21q and the inclined surface portion 21r in the radial direction, or (iii) may be provided in the middle portion of the inclined surface portion 21r as shown in FIG.
- the inner O-ring 27 has a portion on the outer peripheral side of the horizontal plane portion 21q in the rim radial direction, and this portion is supported from the inner side in the rim axial direction by the O-ring axial direction support surface portion 21s.
- the inner O-ring 27 is supported from the inner side in the rim radial direction by the O-ring radial direction support surface portion 21w.
- Rim base 21, outer bead seat band 23, outer O-ring 24, outer side ring 25, inner bead seat band 26, inner O-ring 27 and inner side ring 28 are continuous in the circumferential direction.
- the outer lock ring 22 has a cut for attaching to and detaching from the rim base 21 at least in the circumferential direction, and both ends of the ring are opposed to each other in the circumferential direction.
- the outer lock ring 22, the outer bead seat band 23, the outer side ring 25 and the outer O ring 24 of the inner multi-piece rim 20 are respectively connected to the outer lock ring 12 of the outer multi-piece rim 10.
- the outer bead seat band 13, the outer side ring 15, and the outer O-ring 14 have the same shape.
- the inner bead seat band 26 and the inner side ring 28 of the inner multi-piece rim 20 have the same shape as the inner bead seat band 17 and the inner side ring 19 of the outer multi-piece rim 10, respectively.
- the outer lock ring groove 21k and the outer O are recessed on the inner peripheral side by the outer peripheral surface 21f of the outer gutter portion 21b of the rim base 21 of the inner multiple piece rim 20 and the horizontal surface portion 21q of the outer peripheral surface 21p of the inner gutter portion 21c.
- the rim base has the same diameter except for the ring groove 21m and has the same diameter as the outer peripheral surface 21d of the rim base central portion 21a, or to the extent that the sliding of all the bead seat bands 13, 17, 23, 26 in the rim axial direction is not hindered.
- the diameter is larger than the outer peripheral surface 21d of the central portion 21a. Therefore, the tire T20 attached to the inner multi-piece rim 20 can be removed from the rim base 21 by removing the outer lock ring 22 from the rim base 21.
- the outer gutter portion 11b of the rim base 11 of the outer multi-piece rim 10 and the outer peripheral surfaces 11d and 11e of the inner gutter portion 11c have the same diameter except for the lock ring groove and the O-ring groove recessed on the inner peripheral side. Except for the lock ring groove and the O-ring groove, the outer gutter part 11b and the outer gutter part 11c have outer peripheral surfaces 11d and 11e having the same diameter as the outer peripheral surface 11k of the rim base central part 11a, or all bead seat bands 13, The diameter is larger than the outer peripheral surface 11k of the rim base central portion 11a so as not to prevent the sliding of the 17, 23, 26 in the rim axis direction.
- the outer peripheral surface 21d of the rim base central portion 21a of the rim base 21 of the inner multi-piece rim 20 has the same diameter as the outer peripheral surface 11k of the rim base central portion 11a of the rim base 11 of the outer multi-piece rim 10, or the inner bead seat band 17, The diameter is larger or smaller than the outer peripheral surface 11k of the rim base central portion 11a to the extent that the sliding of the 26 in the rim axis direction is not hindered.
- the outer peripheral surface 21f of the outer gutter portion 21b of the rim base 21 of the inner multi-piece rim 20 and the horizontal surface portion 21q of the outer peripheral surface 21p of the inner gutter portion 21c are recessed in the outer lock ring groove 21k and the outer O ring groove 21m on the inner peripheral side. Except for the outer lock ring groove 21k and the outer O-ring groove 21m, the diameter of the outer peripheral surface 21f of the outer gutter portion 21b is the outer peripheral surface of the rim base central portion 21a of the rim base 21 of the inner multi-piece rim 20.
- the diameter is the same as 21d or larger than the outer peripheral surface 21d of the rim base central portion 21a so as not to prevent sliding of all the bead seat bands 13, 17, 23, 26 in the rim axis direction.
- the outer peripheral surface 21f excluding the outer O-ring groove 21m and the diameter of the horizontal surface portion 21q of the inner multi-piece rim 20 are the same diameter (including substantially the same diameter). Therefore, as shown in FIG.
- outer multi-piece rim 10 includes the outer bead seat band 13, the outer side ring 15, the inner bead seat band 17, and the inner side ring 19, the outer lock ring 12 is removed from the rim base 11.
- the tire T10 attached to the outer multi-piece rim 10 is removed from the rim base 11 with the outer bead seat band 13, the outer side ring 15, the inner bead seat band 17 and the inner side ring 19 assembled. Can do.
- the inner multi-piece rim 20 includes the outer bead seat band 23, the outer side ring 25, the inner bead seat band 26, and the inner side ring 28, the rim base 21 of the inner multi-piece rim 20 is provided.
- the tire T20 can be removed by an assembly of the outer bead seat band 23, the outer side ring 25, the inner bead seat band 26, and the inner side ring 28. Therefore, the assembly structure of the tire T20 removed from the rim base 21 of the inner multi-piece rim 20 can be made the same as the assembly structure of the tire T10 removed from the rim base 11 of the outer multi-piece rim 10.
- the positions of the tire T20 removed from the rim base 21 of the inner multi-piece rim 20 and the tire T10 removed from the rim base 11 of the outer multi-piece rim 10 are changed, the positions can be changed without changing the respective assembly structures. . Also, when the tire T20 removed from the rim base 21 of the inner multi-piece rim 20 is replaced with a spare tire and when the tire T10 removed from the rim base 11 of the outer multi-piece rim 10 is exchanged with a spare tire, the spare tire assembly is used. There is no need to change the structure. Therefore, labor and time for tire replacement can be reduced as compared with the conventional case.
- the inner peripheral surface 21n of the inner gutter portion 21c of the rim base 21 of the inner multi-piece rim 20 is larger in diameter than the hub 30 of the vehicle and has the same diameter as the inner peripheral surface 21e of the rim base central portion 21a or the rim base 21 Since the diameter is smaller than the inner peripheral surface 21e of the rim base central portion 21a so as not to prevent the fitting of the rim base 21 into the hub 30, the rim base 21 can be fitted into the hub 30.
- the outer peripheral surface 21p of the inner gutter portion 21c of the rim base 21 of the inner multi-piece rim 20 includes an O-ring axial direction supporting surface portion 21s that supports the inner O-ring 27 from the inner side in the rim axial direction. Since the support surface portion 21s is at least partly on the outer peripheral side in the rim radial direction than the horizontal plane portion 21q, the entire O-ring axial direction support surface portion 21s is on the inner peripheral side with respect to the horizontal plane portion 21q in the rim radial direction. Even when the inner gutter portion 21c is provided with the groove 21v for the inner O-ring 27, the depth of the groove 21v can be reduced.
- the inner peripheral surface 21n of the inner gutter portion 21c is larger in diameter than the inner peripheral surface 21i of the outer gutter portion 21b excluding the portion 21j, or the same diameter as the inner peripheral surface 21e of the rim base central portion 21a, or the rim base 21 Even when the diameter is smaller than the inner peripheral surface 21e of the rim base central portion 21a so as not to prevent the fitting into the hub 30, the strength of the inner gutter portion 21c can be ensured.
- the tire T20 assembly having the inner bead seat band 26 can be mounted on the inner multi-piece rim 20 because the inclined surface portion 21r that receives the axial force of the inner bead seat band 26 in surface contact with the inner bead 26 is provided.
- a lock ring that receives the axial force of the inner bead seat band 26 is unnecessary, and therefore the O-ring axial support surface portion 21s is connected to the inner end of the horizontal plane portion 21q in the rim axial direction. It can be located between the portion 21t and the rim axial inner end 21u of the inclined surface portion 21r.
- the O-ring axial direction support surface portion 21s Since the O-ring axial direction support surface portion 21s is connected to the inclined surface portion 21r, the O-ring axial direction support surface portion 21s can be formed relatively easily by, for example, denting a part of the inclined surface portion 21r inward in the rim axial direction. can do.
- FIG. 5 In the first embodiment of the present invention, as shown in FIG. 5, a groove 21 v is provided in the inner gutter portion 21 c of the rim base 21 of the inner multi-piece rim 20. Only a part of the O-ring axial direction support surface portion 21s is on the outer peripheral side in the rim radial direction from the horizontal surface portion 21q.
- the O-ring axial direction support surface portion 21s is a flat surface excluding the boundary with the groove 21v, and is a vertical surface orthogonal to the rim axis direction.
- the groove 21v is provided between the horizontal surface portion 21q and the inclined surface portion 21r in the rim axis direction.
- the groove 21v is provided so as to be recessed toward the inner peripheral side in the rim radial direction.
- the groove 21v includes an O-ring radial support surface portion 21w that supports the inner O-ring 27 from the radially inner side.
- the groove 21v receives only the inner peripheral side end (part) of the inner O-ring 27.
- a groove 21v is provided in the inner gutter portion 21c of the rim base 21 of the inner multi-piece rim 20. Only a part of the O-ring axial direction support surface portion 21s is on the outer peripheral side in the rim radial direction from the horizontal surface portion 21q.
- the O-ring axial direction support surface portion 21s is linear in a cross-sectional view except for the boundary with the groove 21v, and includes an inclined surface (conical surface) inclined inward in the rim axial direction and outward in the rim radial direction.
- the groove 21v is provided between the horizontal surface portion 21q and the inclined surface portion 21r in the rim axis direction.
- the groove 21v is provided so as to be recessed toward the inner peripheral side in the rim radial direction.
- the groove 21v receives only the inner peripheral side end (part) of the inner O-ring 27.
- the groove 21v includes an O-ring radial support surface portion 21w that supports the inner O-ring 27 from the radially inner side.
- the inclination angle of the O-ring axial direction support surface portion 21s is closer to the direction perpendicular to the rim axis direction than the inclination angle of the inclined surface portion 21r (steep).
- a groove 21v is provided in the inner gutter portion 21c of the rim base 21 of the inner multi-piece rim 20.
- the groove 21v includes an O-ring radial support surface portion 21w that supports the inner O-ring 27 from the radially inner side. Only a part of the O-ring axial direction support surface portion 21s is on the outer peripheral side in the rim radial direction with respect to the horizontal surface portion 21q.
- the O-ring axial direction support surface portion 21s is a composite surface of a curved surface and a flat surface that is closer to the direction orthogonal to the rim axis direction than the inclination angle of the inclined surface portion 21r.
- the groove 21v is provided between the horizontal surface portion 21q and the inclined surface portion 21r in the rim axis direction.
- the groove 21v is provided so as to be recessed toward the inner peripheral side in the rim radial direction.
- the groove 21v receives only the inner peripheral side end (part) of the inner O-ring 27 and part of the rim axial direction.
- a part of the horizontal surface portion 21q is an O-ring radial support surface portion 21w that supports the inner O-ring 27 from the radially inner side.
- Example 4 In the fourth embodiment of the present invention, the groove 21v is not provided in the inner gutter portion 21c of the rim base 21 of the inner multi-piece rim 20. All of the O-ring axial direction support surface portion 21s is on the outer peripheral side in the rim radial direction from the horizontal surface portion 21q.
- the O-ring axial direction support surface portion 21s is a flat surface and a vertical surface orthogonal to the rim axis direction. However, as shown in FIG. 6, the O-ring axial support surface portion 21s may be an inclined surface that is inclined inward in the rim axial direction and outward in the rim radial direction.
- a groove 21v is provided in the inner gutter portion 21c of the rim base 21 of the inner multi-piece rim 20. All of the O-ring axial direction support surface portion 21s is on the outer peripheral side in the rim radial direction from the horizontal surface portion 21q.
- the O-ring axial direction support surface portion 21s is a composite surface of a curved surface and a flat surface that is closer to the direction perpendicular to the rim axis direction than the inclination angle of the inclined surface portion 21r.
- a part of the horizontal surface portion 21q is an O-ring radial support surface portion 21w that supports the inner O-ring 27 from the radially inner side.
- the groove 21v includes an O-ring radial support surface portion 21w that supports the inner O-ring 27 from the radially inner side.
- the groove 21v is provided between the horizontal surface portion 21q and the inclined surface portion 21r in the rim radial direction.
- the groove 21v is provided so as to be recessed inward in the rim axis direction.
- the groove 21v receives only the inner end (part) of the inner O-ring 27 in the rim axial direction.
- Example 6 In the sixth embodiment of the present invention, a groove 21v is provided in the inner gutter portion 21c of the rim base 21 of the inner multi-piece rim 20. All of the O-ring axial direction support surface portion 21s is on the outer peripheral side in the rim radial direction from the horizontal surface portion 21q.
- the O-ring axial direction support surface portion 21s is a vertical surface that is substantially orthogonal to the rim axial direction in a cross-sectional view orthogonal to the rim circumferential direction. However, it may be an inclined surface as shown in FIG.
- the groove 21v is provided in an intermediate part (an intermediate part in the rim axial direction and an intermediate part in the rim radial direction) of the inclined surface part 21r.
- the groove 21v is provided so as to be recessed inward in the rim axis direction.
- the inner O-ring 27 is in contact with both the first inclined surface portion 26b and the second inclined surface portion 26a of the inner bead seat band 26.
- Outer multi-piece rim 11 Outer multi-piece rim base 12
- Outer multi-piece rim outer bead seat band 14 Outer multi-piece rim outer O-ring 15
- Inner bead seat band 18 for outer multi-piece rim Inner O-ring 19 for outer multi-piece rim Inner side ring 20 for outer multi-piece rim 21
- Rim base 21a for inner multi-piece rim Center portion 21b Outer gutter portion 21c Inner gutter portion 21d Outer peripheral surface 21e of the rim base central portion Inner peripheral surface 21f of the rim base central portion
- Outer peripheral surface 21i of the outer gutter portion Inner peripheral surface 21k of the outer gutter portion Groove 21m
- Outer O-ring groove 21n Inner gutter portion inner peripheral surface 21p
- Inner gutter portion outer peripheral surface 21q Horizontal plane portion 21r Inclined surface portion 21s O-ring axial support surface portion 21v Groove 21w O-ring
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Abstract
Description
アウター多片リム1のリムベース1aの、車両の幅方向中央側であるリム軸方向内側端部は、ロックリング溝とOリング溝を備えるインナーガター部1cとなっている。インナーガター部1cにはインナーロックリング4bが装着されるとともにインナービードシートバンド5bが嵌められており、インナービードシートバンド5bにはインナーサイドリング6bが嵌められている。インナーOリング7bは、インナーガター部1cとインナービードシートバンド5bとの間に配置されている。
インナー多片リム2のリムベース2aの、車両の幅方向中央側であるリム軸方向内側部は、バックフランジ部2cとなっている。バックフランジ部2cにはインナーサイドリング6b´のみが嵌められている。
インナー多片リム2のアウターロックリング4a´、アウタービードシートバンド5a´アウターサイドリング6a´、アウターOリング7a´、インナーサイドリング6b´は、それぞれ、アウター多片リム1のアウターロックリング4a、アウタービードシートバンド5a、アウターサイドリング6a、アウターOリング7a、インナービードシートバンド6bと同形状である。
タイヤT2のアッセンブリ構造が、タイヤT1のアッセンブリ構造と異なっているため、タイヤT1,T2をそれぞれ取外してタイヤT1とタイヤT2の位置を変える場合(タイヤT1をインナー多片リム2のリムベース2aに組付けタイヤT2をアウター多片リム1のリムベース1aに組付ける場合)、タイヤT1からインナービードシートバンド5bとインナーサイドリング6bとを外さなければならず、またタイヤT2にインナービードシートバンド5bとインナーサイドリング6bとを組付けなければならず、手間と時間がかかる。また、タイヤT1を予備タイヤと交換する場合とタイヤT2を予備タイヤと交換する場合とで、予備タイヤをそれぞれ異なるアッセンブリ状態にしなければならず、手間と時間がかかる。
(1) (a)リムベース中央部と、該リムベース中央部より車両の幅方向外側であるリム軸方向外側に位置するアウターガター部と、前記リムベース中央部より車両の幅方向中央側であるリム軸方向内側に位置するインナーガター部と、を備えるリムベースと、
(b)前記リムベースのアウターガター部に設けられるアウターロックリング溝に装着されるアウターロックリングと、
(c)前記リムベースのアウターガター部に嵌められるアウタービードシートバンドと、
(d)前記アウターガター部と前記アウタービードシートバンドとの間に配置されるアウターOリングと、
(e)前記アウタービードシートバンドに嵌められるアウターサイドリングと、
(f)前記リムベースのインナーガター部に嵌められるインナービードシートバンドと、
(g)前記インナーガター部と前記インナービードシートバンドとの間に配置されるインナーOリングと、
(h)前記インナービードシートバンドに嵌められるインナーサイドリングと、
を有し、
前記インナーガター部の外周面は、水平面部と、該水平面部よりリム軸方向内側に位置しリム軸方向内側かつリム半径方向外側に傾斜し前記インナービードシートバンドと面接触して前記インナービードシートバンドの軸方向力を受ける傾斜面部と、前記インナーOリングをリム軸方向内側から支持するOリング軸方向支持面部と、を備えており、該Oリング軸方向支持面部は、リム軸方向で前記水平面部のリム軸方向内側端部と前記傾斜面部のリム軸方向内側端部との間に位置しており、リム半径方向で少なくとも一部が前記水平面部より外周側にある、
インナー多片リム。
(2) 前記Oリング軸方向支持面部は、前記傾斜面部に連なっている、(1)記載のインナー多片リム。
(3) 前記インナーガター部の外周面は、前記インナーOリングをリム径方向内側から支持するOリング径方向支持面部を備えており、
前記インナービードシートバンドは、前記インナーガター部の前記水平面部に接する接触部と、該接触部からリム軸方向内側でリム半径方向外側へ向かう第1傾斜面部と、該第1傾斜面部に連なり前記インナーガター部の前記傾斜面部と面接触する第2傾斜面部と、を備えており、
前記インナーOリングが前記インナービードシートバンドの第1傾斜面部または第2傾斜面部と前記Oリング軸方向支持面部と前記Oリング径方向支持面部とでつぶされることで、前記インナーガター部と前記インナービードシートバンドとの間がシールされることを特徴とする請求項1または請求項2記載のインナー多片リム。
インナー多片リムが、アウタービードシートバンドと、アウターサイドリングと、インナービードシートバンドと、インナーサイドリングと、を有するため、インナー多片リムのリムベースからタイヤを取外す際、タイヤを、アウタービードシートバンド、アウターサイドリング、インナービードシートバンドおよびインナーサイドリングとのアッセンブリで取外すことができる。そのため、インナー多片リムのリムベースから取外したタイヤのアッセンブリ構造を、アウター多片リムのリムベースから取外したタイヤのアッセンブリ構造と同じにすることができる。したがって、インナー多片リムのリムベースから取外したタイヤとアウター多片リムのリムベースから取外したタイヤの位置を変える場合に、それぞれのアッセンブリ構造を変えることなく位置を変えることができる。また、インナー多片リムのリムベースから取外したタイヤを予備タイヤと交換する場合とアウター多片リムのリムベースから取外したタイヤを予備タイヤと交換する場合とで、予備タイヤのアッセンブリ構造を変更する必要もない。よって、従来に比べてタイヤ交換における手間と時間を短縮できる。
インナーガター部の外周面が、インナーOリングをリム軸方向内側から支持するOリング軸方向支持面部を備えており、Oリング軸方向支持面部が、リム半径方向で少なくとも一部が水平面部より外周側にあるため、Oリング軸方向支持面部の全体がリム半径方向で水平面部より内周側にある場合に比べて、インナーガター部にOリング用の溝が設けられる場合であっても該溝の深さを小にすることができる。そのため、インナーガター部の内周面が、アウターガター部の内周面より大径であり、リムベース中央部の内周面と同径、または、リムベースの車両ハブへの嵌め込みを妨げない程度にリムベース中央部の内周面より小径とされている場合であっても、インナーガター部の強度を確保できる。
Oリング軸方向支持面部が、傾斜面部に連なっているため、傾斜面部の一部をリム軸方向内側に凹ませる等により比較的簡単にOリング軸方向支持面部を形成することができる。
本発明全実施例にわたって共通する部分には、本発明全実施例にわたって同じ符号を付してある。
まず、本発明全実施例にわたって共通する部分を説明する。
インナー多片リム20より車両の幅方向外側に、複輪(リア複輪)のアウター側(車両の幅方向外側)の車輪であるアウター多片リム10が配置される。
リムベース中央部21aの内周面21eは、アウター多片リム10のリムベース11のリムベース中央部11aの内周面11hと同径(略同径を含む)とされていてもよく、リムベース21の強度を妨げない程度にリムベース中央部11aの内周面11hより大径とされていてもよい。
インナーガター部21cとインナービードシートバンド26との間のスペースが狭い場合には、図5~図7、図9、図10に示すように、インナーガター部21cに、インナーガター部21cとインナービードシートバンド26との間のスペースを大にする溝21vが設けられていてもよい。なお、インナーガター部21cだけでなくインナービードシートバンド26にも、インナーガター部21cとインナービードシートバンド26との間のスペースを大にする図示略の溝が設けられていてもよい。
溝21vは、(i)図5~図7に示すように、リム軸方向で水平面部21qと傾斜面部21rとの間に設けられていてもよく、(ii)図9に示すように、リム半径方向で水平面部21qと傾斜面部21rとの間に設けられていてもよく、(iii)図10に示すように、傾斜面部21rの中間部に設けられていてもよい。
インナーOリング27は、リム半径方向で水平面部21qより外周側にある部分を有し、該部分は、Oリング軸方向支持面部21sによりリム軸方向内側から支持されている。また、インナーOリング27は、Oリング径方向支持面部21wによりリム径方向内側から支持されている。
(A-1)アウター多片リム10のリムベース11のアウターガター部11bとインナーガター部11cの外周面11d、11eが、内周側に凹むロックリング溝とOリング溝を除いて互いに同径であり、リムベース中央部11aの外周面11kと同径、または、全ビードシートバンド13,17,23,26のリム軸方向へのスライドを妨げない程度にリムベース中央部11aの外周面11kより大径とされている。そのため、アウターロックリング12をリムベース11から外すことで、リムベース11をハブ30から取外すことなく、アウター多片リム10に装着されるタイヤT10を、リムベース11から取外すことができる。
また、インナー多片リム20のリムベース21のリムベース中央部21aの外周面21dが、アウター多片リム10のリムベース11のリムベース中央部11aの外周面11kと同径、または、インナービードシートバンド17,26のリム軸方向へのスライドを妨げない程度にリムベース中央部11aの外周面11kより大径または小径とされている。
また、インナー多片リム20のリムベース21のアウターガター部21bの外周面21fとインナーガター部21cの外周面21pの水平面部21qが、内周側に凹むアウターロックリング溝21kとアウターOリング溝21mを除いて互いに同径であり、アウターロックリング溝21kとアウターOリング溝21mを除いたアウターガター部21bの外周面21fの径はインナー多片リム20のリムベース21のリムベース中央部21aの外周面21dと同径、または、全ビードシートバンド13,17,23,26のリム軸方向へのスライドを妨げない程度にリムベース中央部21aの外周面21dより大径とされている。アウター多片リム10のアウターガター部11bとインナーガター部11cのロックリング溝とOリング溝を除いた外周面11d、11eと、インナー多片リム20のアウターガター部21bのアウターロックリング溝21kとアウターOリング溝21mを除いた外周面21fと、インナー多片リム20の水平面部21qの径は、同径(略同径を含む)である。
したがって、図4に示すように、アウター多片リム10に装着されているタイヤT10をアウター多片リム10のリムベース11から取外したときに、アウター多片リム10のインナーロックリング16をアウター多片リム10のリムベース11から外すとともにインナー多片リム20のアウターロックリング22をインナー多片リム20のリムベース21から外すことで、アウター多片リム10のリムベース11をハブ30から取外すことなく、インナー多片リム20に装着されるタイヤT20をインナー多片リム20のリムベース21から取外すことができる。
〔実施例1〕(図1~図5)
本発明実施例1では、図5に示すように、インナー多片リム20のリムベース21のインナーガター部21cに、溝21vが設けられている。Oリング軸方向支持面部21sの一部のみがリム半径方向で水平面部21qより外周側にある。Oリング軸方向支持面部21sは、溝21vとの境界部を除き平面であり、リム軸方向と直交する垂直面である。
本発明実施例2では、インナー多片リム20のリムベース21のインナーガター部21cに、溝21vが設けられている。Oリング軸方向支持面部21sの一部のみがリム半径方向で水平面部21qより外周側にある。Oリング軸方向支持面部21sは、溝21vとの境界部を除き断面視で直線状であり、リム軸方向内側かつリム半径方向外側に傾斜する傾斜面(円錐面)からなる。
Oリング軸方向支持面部21sの傾斜角度は、傾斜面部21rの傾斜角度よりも、リム軸方向と直交する方向に近い角度である(急である)。
本発明実施例3では、インナー多片リム20のリムベース21のインナーガター部21cに、溝21vが設けられている。溝21vはインナーOリング27を径方向内側から支持するOリング径方向支持面部21wを含む。Oリング軸方向支持面部21sの一部のみがリム半径方向で水平面部21qより外周側にある。Oリング軸方向支持面部21sは、傾斜面部21rの傾斜角度よりもリム軸方向と直交する方向に近い角度である(急である)平面と、湾曲面と、の複合面である。
本発明実施例4では、インナー多片リム20のリムベース21のインナーガター部21cに、溝21vは設けられていない。Oリング軸方向支持面部21sの全部がリム半径方向で水平面部21qより外周側にある。Oリング軸方向支持面部21sは、平面であり、リム軸方向と直交する垂直面である。ただし、図6のようにOリング軸方向支持面部21sがリム軸方向内側かつリム半径方向外側に傾斜する傾斜面となっていてもよい。
本発明実施例5では、インナー多片リム20のリムベース21のインナーガター部21cに、溝21vが設けられている。Oリング軸方向支持面部21sの全部がリム半径方向で水平面部21qより外周側にある。Oリング軸方向支持面部21sは、傾斜面部21rの傾斜角度よりもリム軸方向と直交する方向に近い角度である(急である)平面と、湾曲面と、の複合面である。また、水平面部21qの一部がインナーOリング27を径方向内側から支持するOリング径方向支持面部21wとなっている。溝21vはインナーOリング27を径方向内側から支持するOリング径方向支持面部21wを含む。
本発明実施例6では、インナー多片リム20のリムベース21のインナーガター部21cに、溝21vが設けられている。Oリング軸方向支持面部21sの全部がリム半径方向で水平面部21qより外周側にある。Oリング軸方向支持面部21sは、リム周方向と直交する断面視で、リム軸方向とほぼ直交する垂直面である。ただし、図6のように傾斜面であってもよい。
11 アウター多片リムのリムベース
12 アウター多片リムのアウターロックリング
13 アウター多片リムのアウタービードシートバンド
14 アウター多片リムのアウターOリング
15 アウター多片リムのアウターサイドリング
16 アウター多片リムのインナーロックリング
17 アウター多片リムのインナービードシートバンド
18 アウター多片リムのインナーOリング
19 アウター多片リムのインナーサイドリング
20 インナー多片リム
21 インナー多片リムのリムベース
21a リムベース中央部
21b アウターガター部
21c インナーガター部
21d リムベース中央部の外周面
21e リムベース中央部の内周面
21f アウターガター部の外周面
21i アウターガター部の内周面
21k アウターロックリング溝
21m アウターOリング溝
21n インナーガター部の内周面
21p インナーガター部の外周面
21q 水平面部
21r 傾斜面部
21s Oリング軸方向支持面部
21v 溝
21w Oリング径方向支持面部
22 インナー多片リムのアウターロックリング
23 インナー多片リムのアウタービードシートバンド
24 インナー多片リムのアウターOリング
25 インナー多片リムのアウターサイドリング
26 インナー多片リムのインナービードシートバンド
26a 第2傾斜面部
26b 第1傾斜面部
26c 接触部
27 インナー多片リムのインナーOリング
28 インナー多片リムのインナーサイドリング
30 ハブ
Claims (3)
- (a)リムベース中央部と、該リムベース中央部より車両の幅方向外側であるリム軸方向外側に位置するアウターガター部と、前記リムベース中央部より車両の幅方向中央側であるリム軸方向内側に位置するインナーガター部と、を備えるリムベースと、
(b)前記リムベースのアウターガター部に設けられるアウターロックリング溝に装着されるアウターロックリングと、
(c)前記リムベースのアウターガター部に嵌められるアウタービードシートバンドと、
(d)前記アウターガター部と前記アウタービードシートバンドとの間に配置されるアウターOリングと、
(e)前記アウタービードシートバンドに嵌められるアウターサイドリングと、
(f)前記リムベースのインナーガター部に嵌められるインナービードシートバンドと、
(g)前記インナーガター部と前記インナービードシートバンドとの間に配置されるインナーOリングと、
(h)前記インナービードシートバンドに嵌められるインナーサイドリングと、
を有し、
前記インナーガター部の外周面は、水平面部と、該水平面部よりリム軸方向内側に位置しリム軸方向内側かつリム半径方向外側に傾斜し前記インナービードシートバンドと面接触して前記インナービードシートバンドの軸方向力を受ける傾斜面部と、前記インナーOリングをリム軸方向内側から支持するOリング軸方向支持面部と、を備えており、該Oリング軸方向支持面部は、リム軸方向で前記水平面部のリム軸方向内側端部と前記傾斜面部のリム軸方向内側端部との間に位置しており、リム半径方向で少なくとも一部が前記水平面部より外周側にある、
インナー多片リム。 - 前記Oリング軸方向支持面部は、前記傾斜面部に連なっている、請求項1記載のインナー多片リム。
- 前記インナーガター部の外周面は、前記インナーOリングをリム径方向内側から支持するOリング径方向支持面部を備えており、
前記インナービードシートバンドは、前記インナーガター部の前記水平面部に接する接触部と、該接触部からリム軸方向内側でリム半径方向外側へ向かう第1傾斜面部と、該第1傾斜面部に連なり前記インナーガター部の前記傾斜面部と面接触する第2傾斜面部と、を備えており、
前記インナーOリングが前記インナービードシートバンドの第1傾斜面部または第2傾斜面部と前記Oリング軸方向支持面部と前記Oリング径方向支持面部とでつぶされることで、前記インナーガター部と前記インナービードシートバンドとの間がシールされることを特徴とする請求項1または請求項2記載のインナー多片リム。
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Citations (2)
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JPS5176705A (en) * | 1974-12-03 | 1976-07-02 | Michelin & Cie | Sharinnokairyo |
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JPS58101802A (ja) * | 1981-12-11 | 1983-06-17 | Topy Ind Ltd | ホイ−ルリム |
ZA868336B (en) * | 1985-12-05 | 1987-06-24 | Budd Co | Seal construction for divided rim wheel assembly |
JPH04255022A (ja) * | 1991-01-30 | 1992-09-10 | Hitachi Ltd | 文字情報表示方法 |
JP4255022B2 (ja) * | 2004-06-04 | 2009-04-15 | トピー工業株式会社 | 車両用ホイールの横装填式リム構造およびホイールアッセンブリの組立方法 |
JP2010018100A (ja) * | 2008-07-09 | 2010-01-28 | Topy Ind Ltd | 横装填式ホイールリム構造 |
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JPS5176705A (en) * | 1974-12-03 | 1976-07-02 | Michelin & Cie | Sharinnokairyo |
US20020149256A1 (en) * | 2001-01-18 | 2002-10-17 | Mcneil James | Wheel assembly |
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