• 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:
    Wheel and method of bearing the wheel. The wheel (P) comprises an inner circumferential element (1) and an outer circumferential element (2) and a bearing (L) between them. The bearing comprises a bearing space (7) in which a plurality of separate bearing balls (4) and intermediate elements (5) are arranged alternately. The inner circumferential element is non-rotatable and the outer circumferential element rotates (R) with respect to it.
    公开号:FI20195429A1
    申请号:FI20195429
    申请日:2019-05-24
    公开日:2020-11-25
    发明作者:Jouko Teinonen
    申请人:Jouko Teinonen；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION The invention relates to a wheel and in particular to its bearing arrangement.
    The invention further relates to a method for bearing a wheel.
    The subject matter of the invention is described in more detail in the preambles of the independent claims of the application.
    The bike is an ancient invention and has a huge variety of applications. However, the basic structure of the wheels has remained the same from era to era. The wheels comprise a circumference, hub or hub and surfaces or similar members between the hub and the circumference. Problems have been identified with current solutions.
    Brief Description of the Invention The idea of the invention is to provide a new and improved wheel and method for bearing a wheel.
    The characteristic features of the wheel according to the invention are set out in the characterizing part of the independent device claim.
    The characteristic features of the method according to the invention are presented in the characterizing part of the independent method claim.
    The idea of the presented solution is that the wheel is> 25 without hub or center on its axis of rotation. The wheel N comprises a circumference with an inner circumferential element and an outer circumferential element. The wheel bearings are arranged between these elements. In this case, the inner circumferential element is non-rotating and the outer circumferential element rotates relative to the inner circumferential element. The inner * 30 noise element can be supported on the frame N of the device or vehicle or on the suspension of the wheel. For bearing, the circumferential surfaces of the circumferential elements 3 have bearing grooves which together form an annular bearing space having a circular or substantially circular cross-sectional shape. There are several separate bearing balls in the bearing space and there are separate spacers between successive bearing balls which keep the bearing balls spaced apart.
    One of the advantages of the presented solution is that the wheel has a new kind of eye-catching appearance and operating principle, because it has no center or hub on the axis of rotation of the wheel. Because the wheel does not require all conventional components, the wheel's air resistance can be low and the structure safer.
    A further advantage of the new type of bearing shown is that the bearing balls do not rub against each other during rotation and thus cause rolling resistance. The successive bearing balls are thus not in contact with each other, but there is always an intermediate element between them, which reduces friction and wear. The construction of the bearing is also very simple, making it easy to manufacture and maintain.
    The idea of one embodiment is that the inner part of the wheel is hollow, i.e. the part delimited by the inner surfaces of the inner circumferential element is empty without any bearing members, support members or transmission members.
    The idea of one embodiment is that the wheel is without spokes. When surfaces, spools, or the like can be omitted, the air resistance of the wheel may be low. The weight may also be lower. The surface-free structure is still safe.
    o The idea of one embodiment is that D both the ball bearings and the intermediate elements are arranged to move N freely in the bearing space as the wheel rotates, whereby <Q the bearing balls and the intermediate elements move non-rotatably with respect to the N 30 connected inner circumferential element. E The idea of one embodiment is that the bearing balls are detached from the intermediate elements in the bearing space. s The bearing balls and intermediate elements are thus only arranged in 2 bearing spaces alternately in succession, but they are not in any way N 35 attached to each other or to the surfaces delimiting the bearing space, but are separate pieces.
    The idea of one embodiment is that there are at least three of each bearing ball and intermediate element. Three bearing balls are the minimum requirement for a stable, centering and load-bearing structure.
    The idea of one embodiment is that there are exactly 3 bearing balls and that they are kept evenly spaced in the bearing space by means of spacers.
    The idea of one embodiment is that the number of bearing balls can also be larger, for example 10 to 20 pieces, depending on the diameter of the circumference of the bearing space. In this case, the lengths of the intermediate elements may be the same, or in some cases there may be intermediate elements of different lengths in the bearing space.
    The idea of one embodiment is that the length of the intermediate elements depends on the length of the circumference of the bearing space and the number of bearing balls.
    The idea of one embodiment is that the spacer element is an elongate body with a curved shape fitted in the bearing space. The intermediate element can thus already have a curvature corresponding to the radius of curvature of the bearing space, or alternatively the intermediate element acquires a curved shape when it is pushed into the curved bearing space.
    The idea of one embodiment is that the intermediate element is made of a flexible material, whereby when it fits into the bearing space it acquires a shape corresponding to the radius of curvature of the bearing space. = The idea of one embodiment is that the intermediate element is cut from a long bar or a flexible long blank on a roll <Q. In this case, the length of the intermediate piece N 30 can be dimensioned according to the current need. E The idea of one embodiment is that the cross-section of the small element is circular and corresponds to the cross-section of the bearing space s. 2 The idea of one embodiment is that the cross-sectional dimension, i.e. the diameter, of the spacer 35 can be dimensioned so that the intermediate element fits loosely into the bearing space. In this case, the intermediate element can move in the bearing space without any problems and with low friction.
    The idea of one embodiment is that the intermediate element is a material with a low coefficient of friction.
    In this case, the frictional forces generated between the intermediate element and the bearing space are small.
    The idea of one embodiment is that the intermediate element is made of a plastic material. The plastic is light and very resistant to wear. In addition, the plastic may have a low coefficient of friction. Another advantage of plastic is its low price, good availability, corrosion freedom and easy machinability.
    The idea of one embodiment is that the intermediate element is made of polyamide (PA, nylon), which has good abrasion resistance, sliding properties and a coefficient of friction of 0.25.
    The idea of one embodiment is that the intermediate element is polytetrafluoroethylene (PTFE, Teflon) with a particularly low coefficient of friction of 0.04.
    The idea of one embodiment is that the intermediate element is brass or some other bearing metal. The intermediate element can be formed from a special bearing brass.
    The idea of one embodiment is that the intermediate element is a ceramic material with particularly good - durability and sliding properties. The ceramic can also be light. O The idea of one embodiment is that the number of bearing balls N and the number of intermediate elements <Q, respectively, can be selected on a case-by-case basis and without changes to the N 30 bearing space. In this case, the wheel bearing can be easily upgraded if necessary. This thus makes it possible to change the characteristics of a wheel already in use afterwards. s The idea of one embodiment is that the bearing 2 can be made more load-bearing by adding
    The number of N ball bearings and the number of bearing balls, respectively, can be reduced if the load becomes smaller.
    The idea of one embodiment is that the rotational movement for rotating the wheel is transmitted directly to the outer circumferential element.
    The idea of one embodiment is that at least one side surface of the outer circumferential element comprises transmission means for rotating the outer circumferential element with respect to the inner circumferential element. The external transmission members are thus in contact with the transmission members on the sidewall of the outer circumferential element of the wheel.
    The idea of one embodiment is that the side or side surface of the outer circumferential element may comprise a friction surface or a shaped surface for transmitting the rotational force.
    The idea of one embodiment is that the side surface of the outer circumferential element has teeth for transmitting the rotational force. The rotational force can thus be transmitted from the motor or the manual rotating equipment via tooth contact.
    The idea of one embodiment is that the side surface of the outer circumferential element has a toothed ring, the inner surface of which comprises a toothing for transmitting force.
    The idea of one embodiment is that the wheel comprises side guards on both sides of the wheel, which side guards are adapted to close the lateral gaps between the inner circumferential element and the outer circumferential member D. The side guards prevent N contaminants and moisture from entering the bearing space through the gaps extending to the sides. On the other hand, the side guards can prevent the N 30 lubricant from escaping from the bearing space. E The idea of one embodiment is that the side guards are annular pieces formed of a plate, s which are attached to the side surface of the inner circumferential element or the outer circumferential element. The side guards can be formed of N 35 plastic sheet, for example.
    The idea of one embodiment is that instead of the side guards described above, the wheel comprises some other sealing element between the outer and inner circumferential element. The idea of one embodiment is that the outer circumference of the outer circumferential element has a ring. Said ring may be, for example, a rubber ring or an pneumatic tire filled with air or another gas. The idea of one embodiment is that a support structure is attached to the inside of the inner circumferential element, which, like the inner circumferential element, is non-rotatable and the wheel is supported by means of said support structure. Said support structure may be supported on the suspension of the wheel of the vehicle or on the frame of the device.
    The idea of one embodiment is that a circular plate is arranged in the space delimited by the inner surface of the inner circumferential element, which covers the entire said space, is non-rotatable and forms a support structure from which the wheel can be fixed. The entire surface of the plate is available for mounting and arranging the mounting points.
    The idea of one embodiment is that a circular plate is arranged in the space delimited by the inner surface of the inner circumferential element, which comprises fastening points wherever it is. Furthermore, the plate may comprise several alternative prefabricated attachment points.
    The idea of one embodiment is that a reflector surface is arranged in the space delimited by the inner surface of the inner> circumferential element. The space delimited by the entire inner circumference may be a reflective surface on both sides of the wheel. This solution clearly improves <Q wheel safety.
    The idea of one embodiment is that the inner circumferential element E or the outer circumferential element is provided with an openable hatch or a corresponding opening or channel for mounting the laser balls and intermediate elements in the bearing space 2 and removing them from the bearing space, respectively.
    N 35
    The idea of one embodiment is that an attention sign which is non-rotating is arranged in the space delimited by the inner surface of the inner circumferential element.
    The idea of one embodiment is that the above-mentioned Attention Sign may be a circular plate attached to the inner surface of the inner circumferential element and may cover the entire inner part of the inner circumferential element.
    The idea of one embodiment is that the attention sign may comprise text, a pattern, light elements, reflectors or some other visually visible attention part which remains in the same position despite the rotation of the wheel.
    The idea of one embodiment is that the diameter of the wheel is at least 200 mm.
    The idea of one embodiment is that the wheel according to the solution can be applied to bicycles, kickboards, motorcycles, various strollers and carts and wheelchairs.
    The idea of one embodiment is that the wheel according to the solution can be applied in the bearing of rotating rollers and other rotating machine parts.
    The above embodiments and the features set forth therein may be combined to provide the desired solutions.
    BRIEF DESCRIPTION OF THE DRAWINGS = Some embodiments of the illustrated solution are shown in more detail in the following figures, in which = Fig. 1 schematically shows a solution of a wheel N and its bearing as seen from the side, = Fig. , g Fig. 3 schematically shows a side view of an intermediate element used in the bearing of a wheel 3 of the invention,
    Figures 4 and 5 schematically show some possible wheel bearing arrangements used in the invention, seen from the side, Figure 6 schematically shows a fastening option used in the invention and the placement of a ring on the outer circumference of the wheel, seen from the side, and Figure 7 schematically shows a Fig. 8 schematically shows a part of a wheel described in the invention with teeth, seen from the side, and Fig. 9 schematically shows a cross section of a wheel described in the invention with its transmission mechanisms in front view.
    For the sake of clarity, some embodiments of the presented solutions are shown in simplified form in the figures.
    In the figures, the same reference numerals are used to refer to the same elements and features.
    Explanations of numbers and letters used in the figures 1 inner circumferential element 2 outer circumferential element 3 hatch = 4 bearing ball N 5 intermediate element = 6 fastening member 1 N 7 bearing space = 30 8 first bearing groove> 9 second bearing groove S 10 lateral slot 3 11 intermediate element end face N 12 support structure 13 fastened
    15 plate 16 Warning sign 17 toothing 18 side guard 19 fastening member 2 20 rod P wheel K perimeter L bearing S hollow inner part R direction of rotation Vv fastening means T transmission elements M motor Detailed description of some embodiments Figure 1 schematically shows a wheel (P) with side bearing.
    The described wheel (P) consists of a rim (K) and a bearing (L). The circumference (K) comprises an inner circumferential element (1) and an outer circumferential element (2). There is a bearing (L) between the inner circumferential element (1) and the outer circumferential element (2). The outer circumferential element (2) is rotatably mounted (R) relative to the inner circumferential element (1).
    The bearing (L) is shown in more detail in Figures 2, 4 and 5. In addition to the rim (K) and the bearing (L), the wheel described also has = a hatch (3) for removing, adding and replacing the bearing balls (4) and spacers (5). for.
    The door (3) is = fastened to the inner circumferential element (1) by some suitable N fastening members (6), for example by screws.
    The number of fasteners = 30 members (6) can vary from one to more than necessary.
    The inner part (S) of the described wheel (P) is hollow, i.e. it is not necessary for the wheel (P) to have any structures 3 in its inner part (Ss). N Fig. 2 schematically shows a section A-A of the wheel (P) of Fig. 1. The sectional pattern illustrates the structure and operation of the bearing mechanism.
    Bearing (L)
    comprises a plurality of separate bearing balls (4) in the bearing space (7). The number of bearing balls (4) can vary from three to twenty or more depending on the intended use of the wheel (P).
    The bearing space (7) is delimited by a first bearing groove (8) facing each other on the outer surface of the inner circumferential element (1) and a second bearing groove (9) on the inner surface of the outer circumferential element (2).
    Between the inner circumferential element (1) and the outer circumferential element (2), lateral slits (10) remain on each side of the wheel (P).
    However, the slots (10) are so narrow that the bearing balls (4) cannot fit out of them.
    Figure 3 is a schematic side view of one possible intermediate element (5).
    The intermediate elements (5) can be in the bearing space (7) from three to twenty and more depending on the purpose of the wheel (P).
    The number of intermediate elements (5) must be the same as the bearing balls (4) and they must be placed in the bearing space (7) alternately with the bearing balls 4 in succession.
    The structure, shape and material options of the intermediate elements (5) have been described in more detail earlier in this document.
    Figure 4 is a schematic side view of a wheel (P) bearing (L).
    In this example, the bearing space (7) has only three bearing balls (4) and three intermediate elements (5) in succession.
    The bearing balls (4) and the intermediate elements (5) are alternately in the bearing space (7) so that the bearing balls (4) are always between the main nitrogen surfaces (11) of the intermediate elements.
    To reduce friction, the bearing balls D (4) and the intermediate elements (5) are sized so that they N can move freely in the bearing space (7) in succession. <Q Fig. 5 shows a situation similar to Fig. 4, N 30 but in this example there are E eight bearing balls (4) instead of three bearing balls (4). Fig. 6 is a schematic side view of a bearing-mounted wheel (P) with fastening means (V).
    The fastening means (V) in this case consist of support structures (12) and fastening points (13). The support structures (12) are fastened at their points of attachment (13) to the wheel
    (P) to the inner circumferential element (1). In this case, the support structures (12) must be attached to the inner circumferential element (1), since the inner part (S) of the wheel is hollow, and therefore the support structures (12) cannot be attached to it. In addition, a ring (14) is attached to the outer circumferential element (2) of the wheel of the example of the figure.
    Figure 7 is a schematic side view of a bearing wheel (P) with its fastening means (V). The fastening means (V) in this case consist of a non-rotating plate (15) forming the inner part of the wheel (P) and fastening points (13) to be placed thereon. The number of attachment points may vary as needed. The plate (15) of the inner part can be, for example, wood, plastic or other suitable material, and a warning sign (16), a light element or a reflector can be placed on it. An attention sign (16) or the like can also be placed on the inner circumferential element (1) of the wheel (P) which remains non-rotating. In addition, a ring (14) is attached to the outer circumferential element (2) of the wheel of the example of the figure. Figure 8 is a schematic side view of a part of a bearing wheel (P). In said wheel (P), the transmission is effected by means of toothing (17) so that the side surface of the outer circumferential element (2) has a toothing (17) for transmitting the rotational force. The rotational force can thus be transmitted from the motor or the manual rotating device via a tooth contact. D Fig. 9 schematically shows a cross-section of a bearing-mounted wheel (P) seen from the front. The wheel (P) has side guards (18) on both sides to prevent, for example, the passage of dirt and dust through the slots (10) into the bearing space (7). The side guards have been described in more detail earlier in this document. The wheel (P) also has s transmission elements (T) and fastening means (V). The transmission elements (T) of the wheel (P) in question 2 are based on the solution shown in section 8 of Fig. N35, which is based on
    seen (17). In this case, the rotational force is transmitted from the motor (M) via tooth contact. The motor (M) is fastened to a stationary plate (15) forming the inside of the wheel (P) by means of a suitable fastening member (19), for example a screw or a rod. If necessary, there may be more than one fastening member (6). The fastening means (V) consist of a support structure (12), an attachment point (13) and a rod (20). The support structure (12) is attached to the inner circumferential element (1) of the wheel (P) by means of an attachment point (13). The rod (20) in turn is attached to the support structure (12). The figures and their description are only intended to illustrate the idea of the invention. However, the scope of the invention is defined in the claims of the application.
    o O OF
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    权利要求:
    Claims (15)
    [1]
    A wheel (P) comprising a rim (K) and a bearing (L) and fastening means (V) for fastening the wheel; characterized in that the circumference (K) comprises an inner circumferential element (1) and an outer circumferential element (2); the bearing (L) is arranged between said inner circumferential element (1) and the outer circumferential element (2); the fastening means (V) are fastened to the inner circumferential element (1), the outer circumferential element (2) being rotatably mounted (R) relative to the inner circumferential element (1); the bearing (L) comprises a plurality of separate bearing balls (4) arranged in a bearing space (7) bounded by a first bearing groove (8) facing each other on the outer surface of the inner circumferential element (1) and a second bearing groove (9) on the inner surface of the outer circumferential element (2); and the bearing (L) further comprises a plurality of separate intermediate elements (5) arranged between successive bearing balls (4) in the bearing space (7), the intermediate elements (5) being adapted to keep the bearing balls (4) spaced apart in the bearing space (7). ).
    [2]
    Wheel according to Claim 1, characterized in that both the bearing balls (4) and the intermediate elements (5) are arranged to move freely in the bearing space (7) as the wheel (P) N rotates (R), the bearing balls (4) and the intermediate elements <Q (5) move non-rotatably with respect to the connected inner circumferential element N 30 (1).
    [3]
    = a o 3. Wheel according to Claim 1 or 2, characterized in that 2 there are at least three N 35 ball bearings (4) and intermediate elements (5) each.
    [4]
    Wheel according to one of the preceding claims 1 to 3, characterized in that the length of the intermediate elements (5) depends on the circumferential length of the bearing space (7) and the number of bearing balls (4).
    [5]
    Wheel according to one of the preceding claims 1 to 4, characterized in that the intermediate element (5) is an elongate body with a curved shape arranged in the bearing space (7).
    [6]
    Wheel according to one of the preceding claims 1 to 5, characterized in that the cross section of the intermediate element (5) is circular and corresponds to the cross section of the bearing space (7).
    [7]
    Wheel according to one of the preceding claims 1 to 6, characterized in that the intermediate element (5) is formed from a material with a low coefficient of friction.
    [8]
    Wheel according to one of the preceding claims 1 to 7, characterized in that the number of bearing balls (4) and the number of intermediate elements (5), respectively, can be selected on a case-by-case basis and without changes to the bearing space (7). o D
    [9]
    Wheel N according to one of the preceding claims 1 to 8, characterized in that the rotational movement for rotating the wheel (R) is transmitted directly to the outer circumferential element (2). i o
    [10]
    Wheel according to one of the preceding claims 1 to 9, characterized in that
    that the wheel (P) comprises side guards (18) on both sides of the wheel (P), which side guards (18) are adapted to close the lateral gaps (10) between the inner circumferential element (1) and the outer circumferential element (2).
    [11]
    Wheel according to one of the preceding claims 1 to 10, characterized in that the outer circumference of the outer circumferential element (2) has a ring (14).
    [12]
    Wheel according to one of the preceding claims 1 to 11, characterized in that a support structure (12) is mounted inside the inner circumferential element (1), which is non-rotating like the inner circumferential element (1) and the wheel (P) is supported on said support structure (12). ).
    [13]
    Wheel according to one of the preceding claims 1 to 12, characterized in that the inner circumferential element (1) or the outer circumferential element (2) is provided with an openable hatch (3) for mounting bearing balls (4) and intermediate elements (5) in the bearing space (7) and to remove from the bearing space (7).
    [14]
    Wheel according to one of the preceding claims 1 to 13, characterized in that a warning sign (16) which is non-rotatable is arranged in the space S delimited by the inner surface of the inner circumferential element (1).
    LÖ <Q
    [15]
    A method for bearing a wheel (P), J 30 characterized in that E is a wheel (P), the circumference (K) of which comprises an inner circumferential element (1) and an outer circumferential element (2) and a bearing space (7) therebetween. ) delimited by bearing grooves (8, 9) on opposite surfaces of the inner circumferential element 2 (1) and the outer circumferential element (2) facing each other N 35;
    a plurality of separate bearing balls (4) and intermediate elements (5) are arranged alternately in the bearing space (7); and keeping the bearing balls (4) apart from each other by means of said intermediate elements (5).
    o
    O
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    O <Q +
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    I Jami a
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    O o
    OF
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    同族专利:
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    引用文献:
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    法律状态:
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    优先权:
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