• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A chain (1) for mounting on a vehicle tire, in particular antiskid chain, with a chain net (2), which is arranged in the mounted state of the chain at least on the running surface (3) of a vehicle tire and has a number of chain strands (5, 6), each of a number of chain links (8) each having substantially straight and mutually parallel longitudinal limbs (8s) are formed and which are connected at their ends to each other by connecting elements (7), in particular connecting rings, and the chain links (8) of the chain strands (8 5, 6) in the mounted state of the chain (1) on the running surface (3) lying in an alternately positive and negative angle (+ , -) with respect to the running surface (3) are inclined, wherein the wear elements as wear ribs ( 9) are formed, which are fixedly connected to chain links (8) of the chain network (2) and which extend parallel to the longitudinal limbs (8s) of the chain links.
    公开号:AT518564A1
    申请号:T50348/2016
    申请日:2016-04-19
    公开日:2017-11-15
    发明作者:Karl Schmid Ing
    申请人:Pewag Schneeketten Gmbh & Co Kg；
    IPC主号:
    专利说明:

    Chain for mounting on a vehicle tire
    The invention relates to a chain for mounting on a vehicle tire, in particular anti-skid chain, with a chain network, which is arranged in the assembled state of the chain at least on the tread of a vehicle tire and a number of chain strands, each consisting of a number of chain links, each substantially straight and mutually parallel longitudinal limbs are formed and which are connected at their ends to each other by connecting elements, in particular connecting rings, and the chain links of the chain strands are inclined in the mounted state of the chain on the tread in an alternately positive and negative angle with respect to the tread, wherein the chain links wear elements are assigned.
    In the case of chains according to the invention, which are used in particular as tire chains or antiskid chains, the running net can be designed entirely as a chain net or only partially. Chains of this type are known in the art. For example, AT 511 844 B1 of the Applicant describes a chain in which the running net is designed entirely as a chain net, wherein the chain links of the chain strands are alternately on the running surface or oriented horizontally over the running surface.
    In this conventional arrangement, mainly the upright members transmit the forces to the ground and are responsible for the traction. In use, therefore, use primarily these upstanding links, so that the wear on the upstanding chain links determines the life of the chain, while the underlying links are subject to little wear. The horizontal chain links represent links that have hardly any wear function.
    In this respect, there is an improvement in the use of a tire chain of the type mentioned, since it leads to a more uniform distribution of wear, with additional wear elements can increase the life of the chain. DE 856107 C discloses such a chain, in which the chain links located in the region of the running surface each carry a freely rotatable wear ring. Apart from the complicated production of such a chain, the gripping action due to the theoretically only punctiform edition of the wear rings, especially for a firm and smooth ground conditions only low.
    It is an object of the invention to overcome these disadvantages.
    This object is achieved by a chain of the type mentioned, in which according to the invention, the wear elements are designed as wear bars, which are firmly connected with chain links of the chain network and which extend parallel to the longitudinal legs of the chain links.
    Thanks to the invention, a tire chain with excellent traction and good wear characteristics, the weight can be kept lower than conventional chains with comparable wear and traction properties
    The traction can be further improved if the wear bars have a profiled wear surface.
    It is particularly advantageous if the wear surface of the wear ribs has a groove profile with parallel to the associated longitudinal leg extending recesses and elevations.
    In a practice-proven embodiment, it is provided that the wear ribs extend in the direction of their height substantially perpendicular to the tread.
    Furthermore, it has proved to be recommended if the wear ribs have a length that corresponds substantially to the length of the longitudinal legs of the chain links.
    It is also expedient if the wear ribs have at least one width which substantially corresponds to the width dimension of the longitudinal limbs of the chain links.
    Although not essential, it is advisable in many cases if the wear bars are made of a material that is more resistant to wear than the material of the chain links.
    In view of economical production, it is also advantageous if the wear bars are welded onto the chain links.
    In a preferred embodiment of the invention can be provided that the number of chain links in the chain strands is straight, in particular two, four or six. As a result of the even number of chain links, which are mutually transverse, preferably orthogonal, oriented so that the end members of the chain strands to each other transversely, preferably orthogonal, oriented, which therefore "automatically" results in an inclination of the chain links.
    To allow a particularly simple connection of the chain strands with the connecting rings, can be provided in a favorable embodiment of the invention that at least the chain links at the end of the chain strands have an inner opening into which an annular strand of the connecting element, in particular the connecting ring, at an acute angle to the main level of the respective chain link is receivable. The acute angle may preferably have a value of 45 ° ± 15 °. The exact value of the angle results from the inner width of the chain link and the thickness of the ring.
    In a further advantageous embodiment of the invention, the connecting elements may be formed as connecting rings, which are oriented in the mounted state of the chain substantially with its main plane parallel to the tread, wherein at least some of the connecting rings of the annular strand is cranked relative to the main plane of the ring, said Extent of the bend is predictable. The cranked connecting rings allow a targeted support or stabilization of the inclination of the end members and thus also the intermediate links of the chain. By careful dimensioning of the connecting rings in conjunction with the chain links dimensionally stable inclinations of the chain links can be specified specifically.
    According to a development of this idea, it can be provided in a favorable embodiment of the invention that the connecting elements are formed as connecting rings, wherein at least some of the connecting rings of the annular strand in an axis of a side facing its cross section has an oval shape, preferably an ellipse section.
    Since the tire shoulder also has ground contact in many driving situations, it may be advantageous if at least the first chain link of a shoulder chain section adjoining a connecting ring carries a wear web.
    The invention together with further details and advantages will be explained below with reference to a non-limiting embodiment, which is illustrated in the drawings. These show schematically:
    1 shows an embodiment of a tire chain according to the invention in the mounted state in a perspective view, but without wear webs, to simplify the illustration,
    1 a in a detail of FIG. 1 in an enlarged view a section of the tire chain, now with marked wear bars,
    2 shows a four-limbed chain strand of the tire chain in a perspective view, FIG. 3 shows the chain strand of FIG. 2 in a longitudinal view,
    4 and 5 show two views of the chain strand of Fig. 4 from different angles,
    6 in a view corresponding to FIG. 5 a chain strand of a modified embodiment, FIG.
    7 a to 7 c three embodiments with different position of the wear ribs with respect to the chain links,
    8a to 8c, the connecting ring of the tire chain in plan view (Fig. 4a), in a sectional side view and in a perspective view,
    9a to 9c an alternative embodiment of the connecting ring of the tire chain in a plan, in a side view and in a perspective view.
    10a, 10b and 10c, a further alternative embodiment of the connecting ring of the tire chain in plan view, in a side view and in a perspective view.
    In the figures, for reasons of clarity, the same elements are provided with the same reference numerals.
    Fig. 1 shows a tire chain 1 according to an embodiment of the invention in mounted on a vehicle tire state. FIG. 1 is intended to show the chain in a very general way, with wear members, which are described below and are essential for the invention, not being shown for the sake of clarity in FIG. 1, but appearing from FIG. 1 a and further figures.
    The chain 1 has a network in the form of a chain network 2, which runs over the tread 3 of the tire and partly over the shoulders of the tire and on both sides of the tire by a respective tensioning strand, in this case a tensioning chain 4, in the tensioned over the tread is held (in Fig. 1, only one of the two tension strands 4 is visible, the other is in an analogous manner on the opposite side). The chain network is formed from a number of chain strands 5, 6, which are interconnected by connecting rings 7. Depending on the configuration of the chain 1, the chain strands 5, 6 can have the same number or a different number of chain links 8; in the case of the tire chain 1 shown, two types of chain strands each have four chain links 8. The shoulder chain strands are provided with the reference number 12.
    Fig. 2 shows a chain strand 5, wherein an even number of chain links 8 is preferred, since by the two connecting rings 7 with matching orientation at the end of the chain strand forcing a positioning of the chain links in an oblique, in particular at an angle of substantially 45 ° tilted, position results. This is because the two end links 8a, 8b are oriented transversely to each other as a result of the even number of chain links (see Fig. 3), and thus a position in which both end links orthogonally pass through the rings 7 is not possible. The angle is therefore generally at an acute angle relative to the position in an upright position, the exact value of the angle resulting from the inner width of the chain link and the thickness of the connecting ring.
    The chain links 8 have a shape which, as shown in the figures, is preferably ellipsoid-like, with mutually parallel legs 8s, which are connected to each other at their ends by bows 8b.
    Fig. 3 shows the chain strand 5 in a longitudinal view, i. along the running direction of the chain strand, being set to simplify the chain strand is set is; a curvature according to the circumferential curvature of the runnet 3 is not considered for the sake of simplicity. The two chain links 8 are perpendicular to each other, but are inclined relative to the running net 3, on which they each rest with a longitudinal edge by an angle of α = 45 °, alternately by + ot and -a. The angle is measured in relation to the normal of the tread, which is the axis perpendicular to the tread, at the location of the respective chain link. In general, the angle α can also assume values other than 45 °, in particular angle values of 30 ° to 60 ° (thus 45 ° ± 15 °) being favorable. The selected angle in each case results from the load situation typical for the anti-skid chain. The successive links are then inclined relative to one another by an angle 2a (instead of 90 °).
    It can now be seen in FIGS. 1, la, 2 and 3 as well as the following figures that the chain links 8 of the chain network are provided in the region of the tread with wear bars 9, which are each firmly connected to the chain links 8 and parallel to extend the longitudinal legs 8s of the chain links. The wear bars 9 are suitably welded onto the chain links 8 and may also consist of a more wear-resistant material than conventional chain links. By way of example only, the chain links 8 may be made of a manganese / boron steel (K2) and the wear bars 9 may be made of a manganese-chromium steel (20MnCr5). On the other hand, the chain links 8 and the wear bars 9 may be made of the same material.
    The wearing surface 9v may be profiled to improve gripping ability. In particular, the wearing surface 9v may have a groove profile with depressions and elevations extending parallel to the associated longitudinal limb of the chain link 8, as shown in FIGS. 2 to 6, wherein FIG. 4 and FIG. 5 show the chain strand of FIG. 2, however seen from other angles, show.
    The chain links 8 of the embodiments of Figs. 2 to 5 are chain links with a substantially smooth surface, whereas in the embodiment of Fig. 6, the chain links 8 have a corrugated profile, whereby the surface and the hardness volume can be increased.
    In order to obtain a maximum traction capability of the chain, it is generally expedient if the wear ribs 9 extend in the direction of their height h substantially perpendicular to the running surface 3, as can be seen in particular from FIGS. 3 and 7a. In this case, the height h of the wear bars 9 is at an angle of 45 ° to the longitudinal extension of the chain links 8.
    On the other hand, it can be seen in FIGS. 7b and 7c that other layers of the wear webs 9 are also possible with respect to the chain links 8 and are expedient in certain applications or ground conditions. In Fig. 7b, the height h of the wear ribs 9 is perpendicular to the longitudinal extent of the chain links 8, whereas in Fig. 7, the height h of the wear ribs 9 in the direction of the longitudinal extent of the chain links 8 extends.
    The length 1 wear webs 9 corresponds, as shown in Fig. 2, in an appropriate, but not necessary, substantially the length L of the longitudinal leg 8s of the chain links 8, whereas the wear ribs 9 in a preferred manner have a width b, which, as in 7a, substantially corresponds to the width dimension B of the longitudinal limbs of the chain links 8. However, in many cases it may also be expedient to design the wear ribs 9 wider than the longitudinal limbs of the chain links 8.
    It is further worth mentioning that also members of the shoulder chain sections 12 can be provided with wear webs 9, wherein in particular the first chain link of a section 12 adjoining a connecting ring carries a wear web 9, as shown in FIG.
    The shoulder chain links of the sections 12 usually have a round cross-section and a smaller inner width than the links on the tread, so that their order size is smaller and the cross-section is reduced. As a result, the total weight of the chain can be reduced, the tires are spared on the flank and the at least one wear member gives better traction. Due to the smaller cross sections of the inner and outer side chains or tension chains also reduces the weight of the entire chain. The direct welding of the wear bars on the chain links brings a weight savings over conventional chains, in which the wear bars must be welded by means of Aufpressgliedern on lying members.
    8a, 8b and 8c show a connecting ring 7 in a plan view, in a side view in section and in a perspective view. The ring 7 has, in order to achieve a stable shape of the track field of the chain network 2, advantageously a flattened shape, which fits as possible in the inner chain radius 10, see Fig. 4, in the inclined position. In order to achieve the required cross-sectional area of the ring strand, the radial diameter of the ring strand is increased accordingly. As shown in particular in Fig. 8b, this results in a cross section of the ring strand having a thickness d and a radial dimension ("width") r, wherein the width is favorably at least twice the thickness d The side 11 facing the center axis m Cross-section preferably has an oval shape, for example in accordance with a (half) ellipse (corresponding to an ellipse section) With this shape, the connecting ring can be applied to the shape of the inner curve 10, which is formed by the inclined chain link and thus via the chain link Stabilize the orientation of the chain strand additionally.
    The ratio between the thickness d and the width r of the ring 7 is determined essentially by the cross-section of the strand required due to the required force absorption by the ring. The ring 7 has a smaller thickness in comparison to a "normal" ring in order to accommodate the oblique chain link, which would mean a loss of the resistance moment which is compensated by a corresponding increase in the width.
    A favorable design of the width r of a connecting ring also results from the fact that it is greater than the inner width bi of the chain links 8, see Fig. 4, which are connected to this connecting ring (mounted). This prevents a tilting of the connecting ring relative to the chain link, in particular a bending relative to the longitudinal axis of the chain strand, so that the connecting ring remains in the intended position position and can not twist, and eliminates the risk that the ring is twisted or bent and thus a position from which he can hardly return to the starting position. This would be particularly troublesome during assembly / disassembly of the tire chain and could also lead to chain parts wedged into each other (tangling).
    FIGS. 9a, 9b and 9c show a variant of a connecting ring 71, which has a bent or corrugated shape. By cranking the chain can better align in the desired oblique position and it results in a higher dimensional stability. Again, the cross-sectional shape of the ring strand is preferably flattened with respect to the thickness. In addition, the ring 71 is cranked, i. opposite to an imaginary plane alternately deflected by a Kröpfungsweite c. In the drawing, the total Kröpfungshub is dimensioned with 2c. The cranking stroke 2c is selected to provide a stable positional relationship corresponding to the shape of the terminal chain link 8a hooked into the ring 71 with an oblique position of the chain link corresponding to the angle α. The ring 71 is three times bent over its Gesamtumgang, and thus allows the connection of the ends of three chain strands according to the invention. For a chain link 8a, 8b with a circular strand cross-section with a radius a and the internal width bi, the ideal value of the offset thus results as: 2c = 2a + d- (bi + 2a) cos a, where a is the radius of the cross-section of a chain link 8, bi is the inner width of the chain link 8a, d is the thickness of the ring 71, and the angle α is the angle of inclination to the upright (ie, standing on the tread) position.
    10a to 10c show a further variant of a connecting ring 72, wherein this ring 72 has a quadruple offset. Thus, this ring is particularly suitable for linking four chain strands at their ends. For the dimensioning of the crank, what has been said above applies analogously.
    Of course, the skilled person will be able to change the invention in light of the illustrated embodiments and the description and to adapt it to given requirements. The technical structure of the invention is therefore not limited to the illustrated embodiments.
    LIST OF REFERENCE NUMBERS (not part of the description) 1 Tire chain 2 chain net 3 tread 4 tensioning chain 5,6 chain strands 7 connecting rings 8 chain links 8a, 8b end link 8b bows 8s longitudinal legs, legs 9 wear ribs 9v wear surface 10 inner chain rounding 11 side of cross section 12 shoulder chain sections 71, 72 cranked Rings a Radius of the cross-section of the end member 8a b Width of the webs 9 bi Inner width of the end member 8a B Width dimension of the longitudinal leg 8s c Camber width h Height of the wear bars 1 Length of the wear bars L Length of 8s m Center axis r Width (radial dimension) of the connecting ring α inclination angle
    权利要求:
    Claims (14)
    [1]
    claims
    1. chain (1) for mounting on a vehicle tire, in particular anti-skid chain, with a chain network (2) which is arranged in the mounted state of the chain at least on the running surface (3) of a vehicle tire and a number of chain strands (5, 6) , each of a number of chain links (8) each having substantially straight and parallel longitudinal limbs (8s) are formed and which are connected at their ends to each other by connecting elements (7), in particular connecting rings, and the chain links (8) of the chain strands (5, 6) in the assembled state of the chain (1) on the running surface (3) lying in an alternating positive and negative angle (+ α, -a) with respect to the running surface (3) are inclined, wherein the chain links associated wear elements are, characterized in that the wear elements are designed as wear ribs (9) which are fixedly connected to chain links (8) of the chain network (2) and the s I extend parallel to the longitudinal legs () of the chain links.
    [2]
    2. chain (1) according to claim 1, characterized in that the wear webs (9) have a profiled wear surface (9v).
    [3]
    3. chain (1) according to claim 2, characterized in that the wear surface () of the wear webs (9) has a groove profile with parallel to the associated longitudinal leg () extending depressions and elevations.
    [4]
    4. chain (1) according to one of claims 1 to 3, characterized in that extending the wear ribs (9) in the direction of their height (h) substantially perpendicular to the tread (3).
    [5]
    5. chain (1) according to one of claims 1 to 4, characterized in that the wear webs (9) have a length (1) which substantially corresponds to the length (L) of the longitudinal legs of the chain links (8).
    [6]
    6. chain (1) according to one of claims 1 to 5, characterized in that the wear webs (9) at least one width (b), which corresponds substantially to the width dimension (B) of the longitudinal legs of the chain links (8).
    [7]
    7. chain (1) according to one of claims 1 to 6, characterized in that the wear webs (9) consist of a material which is more resistant to wear than the material of the chain links (8).
    [8]
    8. chain (1) according to one of claims 1 to 7, characterized in that the wear webs (9) are welded to the chain links (8).
    [9]
    9. chain (1) according to one of claims 1 to 8, characterized in that the number of chain links (8) in the chain strands (5, 6) is straight, in particular two, four or six.
    [10]
    10. chain (1) according to one of claims 1 to 9, characterized in that the connecting elements as connecting rings (7) are formed, which are oriented in the mounted state of the chain (1) substantially with its main plane parallel to the tread (3) ,
    [11]
    11. chain (1) according to one of claims 1 to 10, characterized in that at least the chain links (8a, 8b) at the end of the chain strands (5, 6) have an inner opening into which an annular strand of the connecting element, in particular the connecting ring ( 7), is receivable at an acute angle to the main plane of the respective chain link (8a, 8b), wherein the angle preferably has a value of 45 ° ± 15 °.
    [12]
    12. chain (1) according to one of claims 1 to 11, characterized in that the connecting elements as connecting rings (7) are formed, which are oriented in the mounted state of the chain substantially with its main plane parallel to the tread (3), wherein at at least some of the connecting rings (7) of the ring strand is cranked relative to the main plane of the ring, wherein the extent (2c) of the cranking is predetermined.
    [13]
    13. chain (1) according to one of claims 1 to 12, characterized in that the connecting elements as connecting rings (7) are formed, wherein in at least some of the connecting rings (7) of the annular strand at a central axis (m) facing side of its cross section (11) has an oval shape, preferably an ellipse section.
    [14]
    14. chain (1) according to one of claims 1 to 13, characterized in that at least the first to a connecting ring (7) subsequent chain link of a shoulder chain-section (12) carries a wear web (9).
    类似技术:
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    DE2459280A1|1976-06-16|WEAR LINK FOR TIRE CHAINS
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    EP2765013B1|2018-10-03|Anti-skid chain for twin wheels
    EP0084580B1|1986-11-05|Anti-slip chains for vehicle tyres
    EP2022926A2|2009-02-11|Holding band for a lamellae hanging
    DE208277C|
    DE3149239C2|1990-06-21|
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    DE102008015653A1|2009-10-01|Chain wheel for chain gear in chain carriage of mini-track vehicle for grapes cultivation, has tooth forming under-cut with respect to tooth base plane defined by tooth base surface
    AT503793A4|2008-01-15|CONNECTION AND GUIDE ELEMENT FOR A TIRE CHAIN
    CH629706A5|1982-05-14|TIRE CHAIN.
    同族专利:
    公开号 | 公开日
    EP3235665A1|2017-10-25|
    EP3235665B1|2018-12-12|
    US20170297389A1|2017-10-19|
    US10427477B2|2019-10-01|
    AT518564B1|2018-04-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    EP2258566A1|2009-06-03|2010-12-08|Pewag Schneeketten GMBH & Co KG|Chain link for an anti-skid chain|
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    PL2172351T3|2008-10-01|2011-10-31|Pewag Schneeketten Gmbh & Co Kg|Chain link for anti-skid chain|
    DE102011102879B4|2011-05-31|2014-03-27|Pewag Schneeketten Gmbh & Co Kg|Chain link for anti-skid chains for vehicle tires, as well as anti-skid chain comprising such chain links|
    DE202016101308U1|2016-03-09|2017-06-12|Rud Ketten Rieger & Dietz Gmbh U. Co. Kg|Anti-slip device with inclined round or section steel chain|SI3272560T1|2016-07-19|2019-04-30|Rud Ketten Rieger & Dietz Gmbh U. Co. Kg|Tire chain with 45 chain strand|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50348/2016A|AT518564B1|2016-04-19|2016-04-19|Chain for mounting on a vehicle tire|ATA50348/2016A| AT518564B1|2016-04-19|2016-04-19|Chain for mounting on a vehicle tire|
    EP17164672.2A| EP3235665B1|2016-04-19|2017-04-04|Chain for fitting to a vehicle tyre|
    US15/490,364| US10427477B2|2016-04-19|2017-04-18|Chain for mounting on a vehicle tire|
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