DE10132407A1 - Vehicle tire and wheel arrangement holds and supports tire bead areas and sidewall areas between the rim body and outer clamping parts - Google Patents

Abstract

A rim body (11) of a vehicle tire, and two clamping parts (12) are components of the rim (10). The tire is held on the outside of the rim by the clamping parts. The clamping parts hold not only the bead areas of the tire, but also grip and support the lower part of the sidewalls.

Description

The invention relates to a vehicle wheel consisting of a tubeless Pneumatic vehicle tires and a rigid rim, the tire being a tread, has a belt bandage, a radial carcass and two side walls, the End areas preferably merge into bead areas, the Sidewall end areas or the bead areas each between their Rim base part that grips the inside and a rim part that grips the outside Clamping part are clamped, which is firmly connected to the rim base part.

Such a vehicle wheel is known from EP-B-0 156 009. The rim of this Vehicle wheel is made in one piece and designed such that the tire beads are clamped on the radially inner circumference of the rim flange. Radial a clamping ring is provided within each of the two beads is located together with the respective bead in a recess in the rim. The Clamping rings are radially extending at these recesses Rim parts screwed tight and are located radially on the inside of another one Recesses limiting rim part. Mounting the tire on the rim requires precise positioning of the tire beads in the circumferential Recesses of the rim and a precise insertion of the clamping rings before this be screwed on.

Another version of a vehicle wheel using separate Clamping parts are known from DE-A-198 11 541. Here too are ring-shaped circumferential recesses in a one-piece rim for receiving the Tire beads are provided, the bead areas of the tire approximately in cross section Rectangular and distinctly voluminous areas that are almost entirely in separate rim receiving chambers. Filling rings located radially inside the Bead areas are to be introduced into the mentioned recesses Prevent accidental detachment of the bead areas from the rim. Also at this known tire / rim system requires assembly of the tire cumbersome handling and insertion of the tire beads for positioning the same and a precise insertion of the filler rings.

The invention is based on the object, a vehicle wheel of the beginning type mentioned in such a way that not only a secure fit of the tire the rim is guaranteed, but above all a simple and quick assembly is possible.

According to the invention, the object is achieved in that the Rim base part and the two clamping parts are components of the rim, the Tire is held on the outside only by the two clamping parts, which also Pinch areas of the side walls between them and the rim base part and / or support from the outside.

A vehicle wheel designed according to the invention is therefore not required cumbersome handling with to be threaded into recesses in the rim Bead areas and also with clamping parts to be threaded. In the invention the clamping parts are part of the rim and therefore more stable and light manageable executable. Since it only leads to the tire from the outside handling the tire and rim parts during assembly very easy. With a vehicle wheel designed according to the invention, conventional bead areas or on special reinforcements in the Bead areas, for example conventional bead cores and core profiles, be dispensed with, which reduces the tire weight.

The rim of a vehicle wheel according to the invention can be constructed very simply his. The rim base part can be used to connect to the vehicle Manufacturing rim bowl or it can be the outside of the wheel Clamp part of the rim bowl or be firmly connected to this (Claims 2 and 4).

In a version in which the rim base part is provided with the rim bowl , the two clamping parts can also have matching clamping rings be, which are firmly connected to the rim base part (claim 3).

Vehicle wheels designed according to the invention can have a particularly good grip the tire on the rim. In this context it is from Advantage if the clamping part (s) or the clamping ring (s) and the Rim base part pressed against each other and corresponding to each other Have clamping surfaces (claim 5).

These clamping surfaces can be inclined outwards with respect to the radial direction have extending areas or be formed as such or, according to a preferred embodiment, essentially L-shaped in cross-section Be or have areas (claims 6 and 7).

There are a number of embodiments of vehicle wheels according to the invention which ensure a particularly simple assembly of the tire with the rim. at one of these variants, the clamping surfaces are at least in Areas running essentially in the radial direction, the end areas of the pinched tire areas are oriented in the axial direction and in Engage recesses in the axial direction on the respective clamping ring or Clamping part or provided on the rim base part (claim 8).

This embodiment allows the tire to be designed such that its pinched tire areas in the axial direction and either outwards or point inwards (claim 9).

In a further embodiment of the invention, the tire is designed such that that the end areas of its pinched areas in the axial direction and after run outside and between the approximately L-shaped clamping surfaces in cross section the rim base part and the clamping parts are clamped (claim 10).

In this embodiment, it can also be provided that the clamping parts Reach under the rim base part on the outside (claim 11).

To facilitate positioning of the tire on the rim, can be provided that the end areas of the pinched tire areas with bead-toe-like approaches are provided, which are formed in corresponding Engage grooves of the rim base part or the clamping parts (claim 12).

These bulge-like approaches can have a triangular, have rectangular, round or the like cross section (claim 13).

The rim base part can also advantageously as a run-flat ring for the tire in the event of a puncture be designed by its outer circumference at least one run-flat saddle, which has an outer support surface for the tire has, is provided (claim 14).

The individual rim parts can either be connected to each other in a simple manner Screw, be firmly connected by snap connections or the like (Claim 15).

The invention is explained in more detail below with reference to the exemplary embodiments shown schematically in FIGS. 1 to 9. Show

Fig. 1 to Fig. 6 cross-sectional representations of different embodiments of vehicle wheels and

FIGS. 7 to FIG. 9 are cross-sectional views of embodiments of the connecting portions to the tire rim.

Vehicle wheels designed according to the invention consist of a pneumatic vehicle tire 1 and a multi-part rim 10 . The pneumatic vehicle tire 1 has the same basic structure in all of the illustrated embodiments. The differences in the individual embodiments lie in particular in the design of the end regions of tire side walls and the bead regions adjoining them. The essential components of the pneumatic vehicle tire 1 are only shown in FIG. 1 and comprise a carcass 6 of radial construction with, for example, one or two ply carcasses, a tread 2 , a belt assembly 4, which is constructed in a known manner and, for example, has two belt plies made of reinforcement elements embedded in rubber can, and two side walls 7 which merge into bead areas 3 . A bead core 8 is provided in each of the bead regions 3 .

The rim 10 shown in FIG. 1 consists of a rim base part 11 and two matching clamping rings 12 . The ring-like central part of the rim base part 11 is provided on both sides of its inside with a flat receiving groove 14 for positioning and receiving bead toes 30 at the end areas of the bead areas 3 . The shape of the grooves 14 is adapted to the bead toes 30 . Clamping surfaces 15 adjoin the receiving grooves 14 with regions which are inclined outward with respect to the radial direction. The inner sides of the lower regions of the side walls 7 of the tire 1 lie on the clamping surfaces 15 . The outer sides of the bead regions 3 and the lower side wall regions adjoining them are in contact with clamping surfaces 16 which are formed on the outer peripheral region of the clamping rings 12 . The clamping surfaces 16 are therefore correspondingly adapted in cross section to the tire contour and the contour of the rim base part 11 . The clamping rings 12 are designed in such a way that they hold the bead regions 3 and the lower side wall regions of the tire 1 between themselves and the rim base part 11 by clamping. The clamping rings 12 are firmly connected to the rim base part 11 . The connection can be made by screws or by means of snap connections. The rim base part 11 is provided off-center with a rim bowl 13 , via which the wheel can be attached to the vehicle. The rim base 11 is further, in each case subsequent to the clamping surfaces 15 provided with an emergency running saddle 17, which is unpressurized tire 1 each have a supporting surface 17 a for this disposal.

In the embodiment shown in FIG. 2 embodiment, the execution of the vehicle pneumatic tire 1 1 1 corresponds to that of FIG., The type of clamping of the bead portions 3 and the lower sidewall portions also corresponds to that of FIG. 1. In contrast to the embodiment of FIG. Is the rim dish 13 'not part of the rim base part 11 ' but made in one piece with the outer clamping part 12 '. On the inside, the tire 1 is held by a clamping ring 12 , the design of which corresponds to that of the clamping rings 12 from FIG. 1. Also in this embodiment, the connection of the rim base member 11 'with the clamping ring 12 and the rim of the bowl 13' provided clamping member 12 ', for example by screwing or by snap connections.

Fig. 3 shows a variant embodiment is provided in which also a ring-like rim base part 11 ". The tire 1 'is configured such that its side walls 7' are provided with axially inwardly facing bead, the 'terminate in bead portions 3, with one bead toe 30 'is provided, which is also positioned in this embodiment in the area of a flat receiving groove 14 ' of the rim base part 11 ". In accordance with the design of the bead areas 3 'and the lower side wall areas, the two areas of the rim base part 11 "which overlap these areas of the tire are provided with clamping surfaces 15 ' initially in the axial direction and then in the radial direction. The bead areas 3 are provided on their outer sides 'and the end regions of the side walls 7 ' are gripped by clamping surfaces 16 '. On the inside of the wheel, the clamping surface 16 ' is provided on a clamping ring 12 ', on the outside on the wheel on a clamping part 12 "which is an integral part of a rim flange 13 ". The clamping surfaces 16 ' are in cross section approximately L-shaped, so that they also cover the outer areas of the side walls 7 'of the tire 1 '. The extent of the area of the clamping part 12 "or the clamping ring 12 'running outside the tire can be varied within a certain range. In addition to the supporting effect, in particular the clamping part 12 "formed on the rim bowl 13 " also has an optical function, since the area of the rim which is visible from the outside can be particularly emphasized by the configuration of the clamping part 12 "and the rim bowl 13 ". Radially outside the clamping part 12 ″ or the clamping ring 12 ′, rim protection ribs 18 , which are indicated by dashed lines in FIG. 3, can be provided on the tire 1 ′ in a known manner.

The other configuration of the rim base part 11 ″ with emergency saddles 17 and support surfaces 17 a can correspond to that according to the previously described embodiments.

Fig. 4 shows a further embodiment of a vehicle wheel. In this embodiment, the tire 1 "is provided with end regions 7 " a which point axially outward from the side walls 7 ". Separate bead regions are not provided. The end regions 7 " a are or are in receiving grooves 19 , 19 'of a clamping ring 12 '''and a component of a rim bowl 13 ''' forming the clamping part 12 ^IV . The clamping part 12 ^IV and the clamping ring 12 '''grip the end regions 7 "a on their upper and lower sides and also support the adjoining outer regions of the side walls 7 ". The two end regions 7 ″ a are each together with the lower end regions of the side walls 7 ″ between the clamping ring 12 ″ ″ or the clamping part 12 ^IV and a clamping surface 15 ″ provided on the two side surfaces of the ring-like rim base part 11 ″ ″ The clamping surfaces 15 "come into contact with the tire 1 " in the region of the inner sides of the side walls 7 ". The connection of the rim base part 11 '''with the clamping ring 12 ''' and the clamping part 12 ^IV 'or the rim bowl 13 ''' can also be made here by screwing or by means of corresponding snap connections. In this embodiment too, the emergency running properties of the tire in the event of a breakdown can be ensured via emergency running saddles 17 and support surfaces 17 a provided on these.

Also in the embodiment shown in FIG. 5, the tire 1 ″ ″ is provided on its side walls 7 ″ ″ with axially outwardly directed end regions 7 ″ ″ a, which need not have any specially designed bead regions. These end regions 7 ″ ″ a sit on axially extending, outer clamping surfaces 20 of the rim base part 11 ^{IV of} the rim 10 ^IV, to which clamping surfaces 21 extending axially on the inside connect in the radial direction. In this embodiment, the rim base part 11 ^{IV is provided} with the rim bowl 13 ^IV , so that the two clamping parts are designed as 12 ^V clamping rings.

The clamping rings 12 ^V have an L-shaped cross section with clamping surfaces 22 , 23 and are adapted in terms of their dimensions to the tire 1 '''and the rim base part 11 ^IV such that each clamping ring 12 ^{V is} one of the end regions 7 ''' a of overlaps on the outside and is firmly connected to the rim base part 11 ^IV by pinching this end region 7 ″ ″ a. Each clamping ring 12 ^{V also} supports a lower portion of the side wall 7 '''from the outside.

The embodiment shown in FIG. 6 essentially corresponds to that according to FIG. 5, the configuration of the tire 1 ″ ″, the side walls 7 ″ ″, the end regions 7 ″ ″ a and the rim base part 11 ^{IV being} identical to the embodiment according to FIG Fig. 5. The design of the clamping rings 12 ^VI is somewhat different, since here they are approximately V-shaped in cross section and not only overlap the end regions 7 '''a of the tire side walls 7 ''' from the outside but also under those with the Grip seat parts 20 provided parts of the rim base part 11 ^IV .

Fig. 7 to 9 show preferred embodiments of bead toe 30 in the bead areas of the tire 3 and the corresponding explanations of receiving grooves 14 in the rim base member 11. The embodiments shown are shown using the exemplary embodiment according to FIG. 1.

In the embodiment according to FIG. 7, the bead toe 30 is triangular in cross-section. Referring to FIG. 8 is a roughly rectangular cross-sectional bead toe 30 is provided. FIG. 9 shows an embodiment in which the bead toe 30 is round in cross section, for example semicircular or the like.

Of course, the bead toes can also have other cross-sectional shapes, for example trapezoidal.

As material for the rim components, such as rim base part, clamping rings and the Rim bowl, in particular steel, aluminum or plastic come into question.

The assembly of the tire, its arrangement on the components of the rim, is on very simple way possible. The tire is only over the rim base part then either the two clamping rings or the inside of the wheel a clamping ring and the outside of the wheel provided with a clamping part Rim bowl positioned and firmly connected to the rim base part.

In the desert areas, a tire according to the invention can be lighter in weight run as a conventional vehicle tire because of massive steel cores in the bead areas can be omitted, as well as bead-strengthening measures, like core profiles and the like. Basically, it is cheap, even with one Tire bead cores designed according to the invention, but substantially fewer can be designed to be stable as known bead cores.

A vehicle wheel designed according to the invention has the advantage above all of one secure fit of the tire under all possible conditions, even in the event of a Flat tire to ensure. A vehicle wheel according to the invention is also also for an emergency run over a certain distance and at reduced Speed well suited. In addition, an inventive Vehicle wheel have much better concentricity than a conventional vehicle wheel. As already mentioned, it is by the arrangement of the Tire on the rim possible, the part of the rim visible from the outside optically designed in many ways. About the actual execution of the individual parts of the rim can also be targeted to the driving behavior and the Handling of the tire can be influenced.

The invention is not based on the illustrated and described embodiments limited. The individual embodiments can be combined with one another as desired be combined. A single emergency saddle can also be provided, which preferably extends over the entire width of the rim base part. alternative a separate emergency running ring can be provided.

Claims (15)

1. Vehicle wheel consisting of a tubeless pneumatic vehicle tire and a rigid rim, the tire having a tread, a belt bandage, a radial carcass and two side walls, the end regions of which preferably merge into bead regions, the side wall end regions or the bead regions in each case between a rim base part which grips their inner side and a clamping part which grips its outer side and is firmly connected to the rim base part, characterized in that the rim base part ( 11 , 11 ', 11 ", 11 ''', 11 ^IV ) and the two clamping parts ( 12 ', 12 " , 12 ''', 12 ^IV , 12 ^V , 12 ^VI ) are components of the rim ( 10 , 10 ', 10 ", 10 ''', 10 ^IV ), with the tire on the outside only from the two clamping parts (12', 12 ", 12 ''', 12 ^IV , 12 ^V 12 ^VI ), which also areas of the side walls ( 7 , 7 ', 7 ") between them and the rim base part ( 11 , 11 ', 11 ", 11 ''') clamp and / or support from outside. 2. Vehicle wheel according to claim 1, characterized in that the rim base part ( 11 , 11 ^IV ) is provided with the rim bowl ( 13 , 13 ^IV ) which connects to the vehicle. 3. Vehicle wheel according to claim 1 or 2, characterized in that the clamping parts are two especially matching clamping rings ( 12 , 12 ^V , 12 ^IV ) which are fixedly connected to the rim base part ( 11 , 11 ^IV ). 4. Vehicle wheel according to claim 1, characterized in that the wheel-outer clamping part ( 12 ', 12 ", 12 ''') is either part of the rim bowl ( 13 ', 13 ", 13 ''') which connects to the vehicle or with this is firmly connected. 5. Vehicle wheel according to one of claims 1 to 4, characterized in that the clamping part ( 12 ', 12 ", 12 ''') or the clamping ring (s) ( 12 , 12 ^V , 12 ^VI ) and the rim base part ( 11 , 11 ', 11 ", 11 ''', 11 ^IV ) have mutually pressed and corresponding clamping surfaces ( 15 , 15 ', 15 ", 16 , 16 ', 16 ", 20 , 21 , 22 , 23 ). 6. Vehicle wheel according to one of claims 1 to 5, characterized in that the clamping surfaces ( 15 , 16 ) have outwardly inclined regions with respect to the radial direction or are designed as such. 7. Vehicle wheel according to one of claims 1 to 5, characterized in that the clamping surfaces ( 15 ', 16 ', 20 , 21 , 22 , 23 ) in cross-section are essentially L-shaped regions or have such regions. 8. Vehicle wheel according to one of claims 1 to 5, characterized in that the clamping surfaces ( 15 ", 16 ") are at least substantially areas extending in the radial direction or have such areas, and that the end areas of the clamped tire areas extend in the axial direction and in Engage recesses which are provided in the axial direction on the clamping ring ( 12 ") or clamping part ( 12 ^IV ) of the rim or on the rim base part. 9. Vehicle wheel according to claim 8, characterized in that the end regions the pinched tire areas in the axial direction and either after point outside or inside. 10. Vehicle wheel according to one of claims 1 to 5 or 7, characterized in that the end regions (7 '''a) of the clamped tire regions point axially and outwards and between the approximately L-shaped clamping surfaces ( 20 , 21 , 22 , 23 ) of the rim base part ( 11 ^IV ) and the clamping parts ( 12 ^V , 12 ^VI ) are clamped. 11. Vehicle wheel according to claim 10, characterized in that the clamping parts ( 12 ^VI ) also engage under the rim base part ( 11 ^IV ). 12. Vehicle wheel according to one of claims 1 to 11, characterized in that the end regions of the clamped-in tire regions have bead-toe-like projections ( 30 , 30 ') in the correspondingly formed receiving grooves ( 14 , 14 ') of the rim base part ( 11 , 11 ', 11 ") or the clamping parts. 13. Vehicle wheel according to claim 12, characterized in that the bead-toe-like lugs ( 30 , 30 ") have a triangular, rectangular, round or the like cross section. 14. Vehicle wheel according to one of claims 1 to 13, characterized in that the rim base (11, 11 ', 11 ", 11' '') at its outer periphery with at least one emergency running saddle (17) having an outer support surface (17 a) has for the tire, is provided. 15. Vehicle wheel, according to one of claims 1 to 14, characterized in that the individual rim parts are screwed together or Snap connections are firmly connected.