• 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:
    self-compensating belt and pulley transmission system is a self-compensating belt transmission system (26) having a plurality of longitudinally spaced internal shoulders, each having an alignment groove (46). the system additionally comprises at least one pulley (22, 24) comprising a structure configured to rotate about an axis of rotation and having a circular outer edge. a plurality of circumferential teeth extending radially and axially from the outer edge, with each tooth being configured to be received between the adjacent internal shoulders (42) of the drive belt. an alignment flange extends radially between the circumferential teeth. the alignment flange is configured to be received in the alignment groove and the alignment flange does not extend further radially from the axis of rotation than the circumferential teeth. the circumferential teeth, the alignment flange and the alignment groove are configured so that, with the alignment flange received in the alignment groove, the transmission belt is over the circumferential teeth.
    公开号:BR112012004414B1
    申请号:R112012004414-1
    申请日:2010-08-30
    公开日:2020-09-29
    发明作者:Wayne R. Lumpkin
    申请人:The Gates Corporation；
    IPC主号:
    专利说明:

    RELATED REQUESTS
    [001] The present application claims priority to Provisional US Patent Application N2-Series 61 / 238,944, filed September 1, 2009, entitled "Belt Drive System outside Bicycle", which is incorporated here for reference purposes. TECHNICAL FIELD
    [002] Belt transmission systems, and, more particularly, belt transmission systems for bicycles and motorcycles. BACKGROUND OF THE INVENTION
    [003] The vast majority of bicycles and motorcycles manufactured, sold and used around the world use a transmission train with a conventional chain that transmits force between a first pulley operatively associated with a mechanical transmission shaft and a second pulley operatively associated with a rear wheel hub. In bicycle applications, the first pulley is operatively associated with a crank. These chains are relatively effective in transmitting energy between the first and second pulleys, but they are not without problems. Among them are, without being limited to these, the need to be lubricated periodically, the fact that, with wear, the chains become less efficient in the transmission of force, residues can be deposited between the chain links decreasing efficiency, the chains stretch with prolonged use and need to be periodically replaced and can even wear the teeth of the first or second pulley, also requiring replacement, and the chains can have a high level of noise.
    [004] A known alternative to chain-based transmission train systems is belt-driven train systems. Belt drive systems overcome many of the problems discussed above, but are not free from their own problems. For example, belt drive systems generally require relatively precise alignment between the first and second pulleys of the belt drive system. Achieving such an alignment can be difficult, particularly in the case of bicycles, where cranks and hubs from different manufacturers can be mixed and associated in the assembly of the bike, resulting in an unclear alignment. In addition, incidents that degrade the alignment may occur when using the bicycle. As a consequence of the loss of precise alignment, the belts of known belt drive systems may deviate from the pulley and fall off the pulley. This problem is exacerbated, as the belts and pulleys are relatively narrow in relation to the length of the belt. A known way of dealing with this misalignment is to arrange one or more side flanges that extend radially around the circumference of the pulley to prevent the belt from deviating out of the pulley. However, such side flanges, particularly when two side flanges are provided, complicate the pulley manufacture, increase the weight, make the pulley wider and increase the cost of the pulleys. Another problem with known belt drive systems is the accumulation of debris between the teeth of the pulleys, which can interfere with effective force transmission and, in extreme cases, cause a belt to slip off a pulley. Each of these disadvantages is significant for bicycle and motorcycle applications, in particular for bicycle applications.
    [005] The various embodiments described here aim to overcome one or more of the problems discussed above. SUMMARY OF ACCOMPLISHMENTS
    [006] A first aspect is a self-compensating belt drive system comprising a belt drive containing a plurality of longitudinally spaced internal shoulders, each having an alignment groove. The system additionally comprises at least one pulley comprising a structure configured to rotate about an axis of rotation and having a circular outer edge. A plurality of circumferential teeth extends radially and axially from the outer edge, with each tooth being configured to be received between the adjacent internal shoulders of the drive belt. An alignment flange extends radially between the circumferential teeth. The alignment flange is configured to be received in the alignment groove and the alignment flange does not extend further radially from the axis of rotation than the circumferential teeth. The circumferential teeth, the alignment flange and the alignment groove are configured so that, with the alignment flange received in the alignment groove, the transmission belt is over the circumferential teeth.
    [007] Another aspect is a pulley and transmission belt system for a bicycle comprising a transmission belt with a plurality of longitudinally spaced internal shoulders, each having an alignment groove. A first pulley is configured to engage the inner surface of the transmission belt and comprises a structure configured for connection to a bicycle crank for rotation about an axis of rotation. The structure additionally includes a circular outer edge having a plurality of circumferential teeth extending radially and axially from the outer edge. The teeth extend axially to a tooth width at least equal to the width of the drive belt. Each tooth is configured to be received between the adjacent internal shoulders of the drive belt. A second pulley is configured to engage the internal surface of the transmission belt and comprises a structure configured for connection to the bicycle wheel hub for rotation about an axis of rotation. The structure has a circular outer edge having a plurality of circumferential teeth extending radially and axially from the outer edge. The teeth extend axially over a tooth width at least as wide as the width of the drive belt and each tooth is configured to be received between the adjacent internal shoulders of the drive belt. At least one of the first and second pulleys comprises an alignment flange extending between adjacent circumferential teeth, the alignment flange being configured to be received in the alignment groove.
    [008] Yet another aspect is a bicycle comprising the pulley and the transmission belt system of the previous paragraph.
    [009] An additional aspect is a pulley for use with a drive belt, the drive belt comprising a plurality of longitudinally spaced internal bosses, each having an alignment groove dividing the boss into a first and second boss segments. The pulley comprises a structure configured to rotate about an axis of rotation, the structure having a circular outer edge with opposite sides. A plurality of circumferential teeth extends radially and axially from the outer edge, each tooth having a tooth width at least equal to the width of the drive belt. Each tooth is configured to be received between an adjacent internal shoulder of the drive belt. An alignment flange extends between adjacent circumferential teeth, the alignment flange being configured to be received in the alignment groove. The alignment flange extends radially no more than the circumferential teeth of the axis of rotation.
    [010] Yet another aspect is a bicycle kit comprising at least two of a transmission belt, a first pulley and a second pulley. The drive belt comprises a plurality of longitudinally spaced internal shoulders, each having an alignment groove dividing the shoulder into first and second shoulder segments. The alignment groove has an alignment groove depth. Each of the first and second pulleys is configured to engage a surface of the drive belt and at least one of the first and second pulleys comprises a structure configured to rotate about an axis of rotation. The structure has a circular outer edge. A plurality of circumferential teeth extends radially and axially from the outer edge, each tooth having a tooth width parallel to the axis of rotation and each tooth being configured to be received between the adjacent shoulders of the drive belt. An alignment flange extends radially between adjacent circumferential teeth. The alignment flange is configured to be received in the alignment groove and the alignment flange does not extend further radially than the circumferential teeth from the axis of rotation. The circumferential teeth, the alignment flange and the alignment groove are configured so that, with the alignment flange received in the alignment groove, the transmission belt is over the circumferential teeth.
    [011] An additional aspect is the use of a belt for a bicycle transmission system for a bicycle, with the transmission system being configured as described in any of the preceding paragraphs. The belt comprises a plurality of longitudinally spaced internal shoulders extending a width of the belt, each shoulder having an alignment groove dividing the shoulder into first and second shoulder segments, and the alignment groove having a width of less than 1 / 3 of the belt width. In one embodiment, the belt is about 11 mm wide and the alignment groove is about 1-2 mm wide.
    [012] Yet another aspect is the use of a pulley for a bicycle-to-bicycle transmission system as described in any of the preceding paragraphs, the pulley comprising a structure configured to rotate about an axis of rotation, the structure having a circular outer edge with opposite sides. The pulley additionally includes a plurality of circumferential teeth evenly spaced in one step of the pulley extending radially and axially from the outer edge, each tooth having a width parallel to the axis of rotation, the width being at least equal to a width of the drive belt , and each tooth being configured to be received between the adjacent internal shoulders of the drive belt. An alignment flange extends between adjacent circumferential teeth, the alignment flange being configured to be received in a belt alignment groove, the alignment flange extending radially no more than the circumferential teeth from the axis of rotation. The pulley for use with a drive belt may additionally comprise the alignment flange having a width that is substantially constant as it extends radially to a rounded distal end. The pulley may additionally comprise the alignment flange having a width less than 1/3 the width of the teeth. BRIEF DESCRIPTION OF THE DRAWINGS
    [013] Fig. 1 is a schematic plan view of a bicycle, in particular including a belt and pulley system; Fig. 2 is a perspective view of the second pulley of Fig. 1; Fig. 3 is a cross section of the second pulley of Fig. 2 along line 3-3; Fig. 4 is a perspective view of the cross section of Fig. 3; Fig. 5 is a perspective view of the first and second pulleys of Fig. 1 engaged with a transmission belt; Fig. 6 is a side elevation view of the pulley and the drive belt system of Fig. 5; Fig. 7 is a cross section of the second pulley in Fig. 6 along line 7-7 in Fig. 6; Fig. 8 is a cross section of a segment of a pulley illustrating an axial displacement; and Fig. 9 is a cross section of a belt pulley-cam tooth engagement. DETAILED DESCRIPTION
    [014] Unless otherwise specified, all numbers that express quantities of ingredients, dimensions, reaction conditions, and so on, used in the specification and in the claims, are to be understood as being modified in all instances by the term “fence of "or" approximately ".
    [015] In this application and in the claims, the use of the singular includes the plural, unless explicitly stated otherwise. In addition, the use of "or" means "and / or", unless otherwise specified. In addition, the use of the term "including", as well as other forms, such as "includes" and "included," is not limiting. In addition, terms such as "element" or "component" encompass both elements and components comprising one unit and elements and components comprising more than one unit, unless otherwise stated.
    [016] The belt drive system disclosed here can be applied to a wide variety of equipment using belt drives, including, without limitation, vehicles such as motorcycles and bicycles. Depending on the specific advantages of the belt drive system for use with bicycles, the belt drive system is illustrated in use with a bicycle. This specific embodiment is not intended to be limiting unless it is explicitly limited by the scope of the appended claims.
    [017] A bicycle 10 having a belt drive system 12 is schematically illustrated in Fig. 1. Bicycle 10 includes a frame 14 with a rear wheel 16 having a hub 18 connected to the frame by a rear hitch fork ( not illustrated). The bicycle 10 additionally includes a crank 20. The belt drive system 12 includes a first pulley 22, which is operatively associated with the crank 20 to rotate about a common axis of rotation with the crank 20. A second pulley 24 is operatively associated with the rear wheel hub 18 to rotate about a common axis of rotation. A synchronous transmission belt 26 extends between the first pulley 22 and the second pulley 24. As illustrated in Fig. 1, the first pulley 22 may have a larger diameter than the second pulley. In other embodiments, the pulleys may be of the same size or the second pulley may have a larger diameter than the first pulley. In addition, one or more coaxial pulleys can be provided adjacent the first or second pulley to provide variable gear ratios. Such an embodiment may additionally include a front or rear shift to allow for interchange between adjacent pulleys. Alternatively, the gear system can be provided by means of a rear hub with gears of the type known in the art.
    [018] Fig. 2 is a perspective view of the second pulley 24 removed from hub 18 and the belt drive system 12. The second pulley 24 comprises a frame 28 configured for connection to hub 18 of the rear wheel 16 and includes a circular outer edge 30 with opposite sides 32, 34, a hub connecting ring 36 and a plurality of spokes 37 extending between the hub connecting ring 36 and circular outer edge 30. The second pulley 24 additionally comprises a plurality of circumferential teeth 38. As illustrated, the circumferential teeth are evenly spaced on a PP pulley pass and extend radially and axially from the outer edge. In other embodiments, the teeth may have variable spacing to be coupled to a transmission belt containing variable spaced shoulders.
    [019] Each tooth additionally has a width W parallel to the axis of rotation. The width W is at least equal to the width of the drive belt 26, although, in some embodiments, it may be the same, greater or less than the width of the drive belt. It can be advantageous that the tooth width and the belt width are substantially equal to maximize the amount of force transmitted between the belt and the teeth while minimizing the respective belt and teeth width. Each tooth 38 is configured to be received in a space between the adjacent internal shoulders 42 of a drive belt 26, as illustrated in Figs. 5 and 6. In some embodiments, as illustrated in Figs. 5 and 6, the teeth substantially fill the space between the adjacent shoulders. This aspect can be useful to minimize the slip between the belt and the pulley if the direction of rotation of the pulley is reversed. These internal shoulders are spaced by a BP belt pass. The second pulley 24 includes an alignment flange 44 extending between adjacent circumferential teeth. The alignment flange 44 is configured to be received in an alignment groove 46 of the drive belt 26, which divides each shoulder into first and second shoulder segments. See Figs. 5 to 7 Referring to Fig. 7, the alignment groove 46 can have parallel side walls. In other embodiments, the side walls can be tapered to facilitate receiving the alignment flange 44 therefrom. In addition, the alignment flange 44 can be tapered to facilitate coupling with the centering groove. Whether tapered or not, the alignment flange 44 may additionally include a distal end that is rounded or otherwise configured to facilitate such corresponding coupling. In the illustrated embodiment and as seen in Fig. 7, the alignment groove 46 divides the shoulders 42 into first and second boss segments. However, the first and second cam segments could be of different widths in other embodiments. In the illustrated embodiment, each tooth of the second pulley 24 extends in the direction of the length an equal distance from each side of the outer edge. In embodiments where the first and second cam segments are of different widths, the teeth would generally have different corresponding widths. In the illustrated embodiment, each tooth of the second pulley 24 extends radially beyond the alignment flange 44 from the axis of rotation (see Fig.6), although, in other embodiments, they can be extended by the same distance or the flange of alignment 44 could extend even further. In some embodiments, the circumferential teeth, the alignment flange and the alignment groove are configured so that, with the alignment flange received in the alignment groove, the drive belt is over the circumferential teeth. Alternatively, the circumferential teeth, the alignment flange and the alignment groove can be configured to also be on the alignment flange.
    [020] Fig. 9 illustrates an embodiment in which the alignment flange has parallel side walls and a rounded distal end. In this embodiment, the pulley has a width H of about 11 mm and the teeth have a width of about 11 mm. In most embodiments, the width of the teeth is at least equal to the width of the belt. In Fig. 9, the alignment groove has a width I of about 1.5 mm and the alignment flange has a width J of about 1.0 mm. Generally, the width of the alignment groove is slightly greater than the width of the alignment flange to provide a certain engagement gap, but it should not be much greater so that the belt does not deviate in an undesirable proportion along the width of the teeth . Generally, the width of the alignment groove is minimized to maximize the amount of belt surface available for engaging teeth and maximizing the surface for transmitting force between them. The act of minimizing the width of the alignment groove also minimizes the likelihood of debris entering the alignment groove. Assuming a belt width of about 11 mm, in some embodiments the width of the alignment groove can be between about 1 to 3 mm, in other embodiments, about 1 to 2 mm and, in other embodiments, about 1 to 1.5 mm. The alignment flange would generally have a width of about 0.5 mm less than the alignment groove.
    [021] In some embodiments, the ratio of the width of the alignment groove to the belt width can reach 1: 3. In other embodiments, it can be 1: 4. In still other embodiments, it can be 1: 8, 1:10 or even less. The ratio of the width of the alignment flange to the width of the teeth can also be 1: 3, 1: 4, 1:10 or even smaller.
    [022] As seen in Fig. 9, the alignment flange is configured so that it does not extend to the bottom of the alignment groove. In the embodiment of Fig. 9, there is a distance of about 0.75 mm between the distal end of the flange and the bottom of the alignment groove. This setting is useful when the pulley and belt drive system is used in an environment where debris may be present, such as mountain biking. This space allows the accumulation of some residues without filling the alignment groove and possibly forcing the belt out of the pulley. In other applications where residue build-up is of little importance, the alignment flange can be configured to extend the entire depth of the alignment groove. In most embodiments, it is desirable that the alignment flange does not extend into the alignment groove to the point that the belt is over the alignment flange until the surface of the pulley teeth is excluded.
    [023] Referring to Fig. 8, an axial offset 48 of a selected distance (for example, 2 mm) is provided between the connecting ring 36 and the outer edge 30. In one embodiment, the offset 48 is provided between the connection ring 36 and the plurality of spokes 37 as a step, as shown in Fig. 8. Alternatively, the deviation can be provided by an angular deviation or in any other way. The purpose of this deviation is that, when connecting the connecting ring to the hub, the position of the outer edge along the axis of rotation can be varied depending on which of the opposite sides of the outer edge is at the front during the connection.
    [024] The first pulley 22 has an identical configuration of the circular outer edge 30, the teeth 38 and the alignment flange 44, but can be, as shown in Fig. 6, of a different diameter and can additionally include a different structure. Referring to Figs. 5 and 6, the structure 50 of the first pulley 22 consists of a series of angular supports extended internally and radially spaced 52 which additionally form a means for operative association with the crank. These angular supports may have a deviation similar to the axial deviation 48 shown in Fig. 8 in relation to the second pulley 4. The holes 54 provide connection with the crank 20.
    [025] In some embodiments of a transmission system as disclosed here, only the first pulley 22 or the second pulley 24 may include an alignment flange. It may also be desirable, in some embodiments, not to have an alignment flange extending between all adjacent teeth. In some embodiments, the alignment flange may simply be a radial extension of the outer edge instead of a flange extending radially from the outer edge. In some embodiments, only a single pulley can be used with a drive belt.
    [026] In use in the specific application of a bicycle, the shoulders 46 of the synchronous transmission belt 26 are received in the space between the adjacent teeth of each of the first and second pulleys 22, 24, whereby the rear wheel can be triggered by applying force to the crank. Alignment is maintained on the first and second pulleys 22, 24 by the alignment flange 44 in coupling with the alignment groove 46 of the belt. In this way, the side flanges required on conventional belt pulleys used on bicycles can be eliminated. This has the advantage of reducing the width of the pulleys, which is essential with the small space available in the assembly of the bicycle. The elimination of side flanges additionally reduces the weight of the pulleys, another critical factor in the bicycle's design. The alignment aspect allows the relative axial displacement between the first and second pulleys, which is common in bicycles where the frames may not be built according to the exact specifications and in which damage may occur to the frame or the pulleys that would normally take the pulleys to be out of alignment. In addition, bicycle manufacturers can choose to use cranks and wheels from different manufacturers and their dimensions can vary considerably, which could cause some misalignment of the pulleys. This possible misalignment can be compensated for by means of axial deviations in the first and second pulleys as described above and in addition due to the interaction of the alignment grooves and the alignment flanges. These advantages can be enjoyed in other applications, such as moped or other devices using belt drive systems.
    [027] Another advantage of this design is the possibility that mud and debris can be removed in the teeth area. This aspect is further facilitated by the waste evacuation path 56 that extends between each opposite side 32, 34 of the circular outer edge 30 of the alignment flange 44, as is best appreciated in Figs. 3 and 4. The waste evacuation path is designed to eliminate obstacles to waste by cleaning the pulley. As seen in these figures, the waste evacuation path 56 is angled from the opposite side to the alignment flange 44 in a way that facilitates the cleaning of waste and prevents blockage by a shoulder on the outer edge of the pulley. A curved surface or other configurations could also perform this evacuation function. In addition, alignment flange 44 can prevent debris from entering the space between adjacent teeth in the first place.
    [028] Various embodiments of the disclosure could also include permutations of the various elements mentioned in the claims as if each dependent claim were a multiple dependent claim incorporating the limitations of each of the preceding dependent claims, as well as the independent claims. Such permutations are expressly within the scope of this disclosure.
    [029] Although the invention has been particularly illustrated and described with reference to a series of embodiments, it would be clear to those skilled in the art that changes to form and details can be made in the various embodiments disclosed here without departing from the spirit and scope of the invention and that the various embodiments disclosed herein are not intended to act as limitations on the scope of the claims. All references cited herein are incorporated in their entirety for reference purposes.
    权利要求:
    Claims (21)
    [0001]
    1. Pulley (22, 24) for use with a transmission belt (26), the transmission belt comprising a plurality of longitudinally spaced internal shoulders (42), each having an alignment groove (46) dividing each shoulder (42) in first and second cam segments, the pulley comprising: a structure (28) configured to rotate around an axis of rotation, the structure having a circular outer edge (30) with opposite sides (32, 34 ); a plurality of circumferential teeth (38) extending radially and axially from the edge (30), each tooth (38) having a tooth width and each tooth being configured to be received between adjacent internal shoulders (42) the transmission belt (26); and an alignment flange (44) extending between adjacent circumferential teeth (38), the alignment flange (44) being configured to be received in the alignment groove (46), the alignment flange (44) does not extends radially beyond the circumferential teeth (38) from the axis of rotation (40), CHARACTERIZED by the fact that each tooth (38) extends radially beyond the alignment flange (44) from the axis of rotation (40) .
    [0002]
    2. Pulley (22, 24) according to claim 1, CHARACTERIZED by the fact that the alignment flange extends essentially perpendicular to the width (W) of the teeth (38).
    [0003]
    3. Pulley (22, 24), according to claim 1 or 2, CHARACTERIZED in that the alignment flange (44) has a width that is constant as it extends radially to a rounded distal end.
    [0004]
    4. Pulley (22, 24), according to any of the previous claims, CHARACTERIZED by the fact that each tooth (38) extends towards the width at an equal distance from each side of the edge (32, 34) .
    [0005]
    Pulley (22, 24) according to any one of the preceding claims, CHARACTERIZED in that it further comprises the alignment flange (44) having a width less than 1/3 of the width of the teeth, preferably having a width of less than 1 / 10 of the width of the teeth (38).
    [0006]
    6. Pulley (22, 24), according to any of the preceding claims, CHARACTERIZED by the fact that it additionally comprises a waste evacuation path (56) that extends between at least one side opposite the outer edge (30) and the alignment flange (44), the waste evacuation path (56) being free of obstacles between at least one side opposite the outer edge and the alignment flange.
    [0007]
    7. Drive belt and pulley system (12) including at least one pulley (22, 24) as defined in any of claims 1 to 6, and a drive belt (26), the drive belt (26) CHARACTERIZED to be understood: a plurality of longitudinally spaced internal shoulders (42) extending the width of the belt (26), each shoulder (42) having a single alignment groove (46) dividing the shoulder (42) into the first and second shoulder segments, the circumferential teeth (38), the alignment groove (46) and the alignment flange (44) being configured so that, with the alignment flange (44) received in the alignment groove (46), the drive belt (26) moves on the circumferential teeth (38) of the pulley (22,24), and not on the alignment flange (44).
    [0008]
    8. Belt and pulley system (12), according to claim 7, CHARACTERIZED by the fact that the alignment groove is in the center of the shoulder (42).
    [0009]
    9. Belt and pulley system (12) according to claim 7 or 8, CHARACTERIZED by the fact that the alignment groove (46) has an alignment groove depth and extends longitudinally from the transmission belt ( 26).
    [0010]
    10. Belt and pulley system (12) according to any one of claims 7 to 9, CHARACTERIZED by the fact that the alignment groove is less than 1/3 the width of the belt (26) and / or the alignment groove (46) is between 1 and 2 mm wide.
    [0011]
    11. Belt and pulley system (12) according to any one of claims 7 to 10, CHARACTERIZED by the fact that the belt has a width of about 11 mm or less.
    [0012]
    12. Belt and pulley system (12) according to any of claims 7 to 11, CHARACTERIZED by the fact that the circumferential teeth, the alignment flange (44) and the alignment groove (46) are configured so that, with the alignment flange received in the alignment groove, the drive belt (26) does not move over the alignment flange (44).
    [0013]
    13. Belt and pulley system (12) according to any of claims 7 to 12, CHARACTERIZED by the fact that each tooth (38) is configured to essentially fill a space between the adjacent shoulders (42).
    [0014]
    14. Belt and pulley system (12) according to any of claims 7 to 13, CHARACTERIZED by the fact that the width of the tooth (38) is at least equal to the width of the transmission belt (26).
    [0015]
    15. Drive belt and pulley system (12) according to any one of claims 7 to 14, CHARACTERIZED by the fact that the ratio between the width of the alignment groove and the width of the belt is essentially the same as the ratio between the width of the alignment flange and the width of the teeth (38).
    [0016]
    16. Belt and pulley system (12) according to any one of claims 7 to 15, CHARACTERIZED in that it additionally comprises a gap between an alignment groove width (46) and an alignment flange width -ment (44).
    [0017]
    17. Belt and pulley system (12) according to any one of claims 7 to 16, CHARACTERIZED by the fact that the alignment flange extends into the alignment groove (46) at a distance not greater than or less than the depth of the alignment groove.
    [0018]
    18. Belt and pulley system (12), according to any one of claims 7 to 17, CHARACTERIZED by the fact that it comprises: a first pulley (22), as defined in any one of claims 1 to 6, which it is configured for connection to a set of cranks (20) of a bicycle (10), and a second pulley (24), as defined in any one of claims 1 to 6, which is configured for connection to a rear wheel hub (18) of a bicycle (10).
    [0019]
    19. Belt and pulley system kit (12) according to any one of claims 7 to 18, CHARACTERIZED by the fact that it comprises at least two pulleys (22, 24) as defined in any one of claims 1 to 6 and a belt (26) as defined in any one of claims 7 to 11.
    [0020]
    20. Bicycle (10) FEATURED by the fact that it comprises: a bicycle frame (14) provided with a set of cranks (20) and a rear wheel (16) having a rear wheel hub (18), further comprising the system drive belt and pulley (12) as defined in claim 18, the system (12) being arranged so that the structure of the first pulley (22) is connected to the assembly of the cranks, that the structure of the second pulley (24) is connected to the rear wheel hub (18) and that the drive belt (26) moves over the circumferential teeth of the first (22) and second (24) pulleys, while the alignment flanges (44) of the pulleys are received in the groove alignment (46) of the drive belt (26).
    [0021]
    21. Use of a pulley (22, 24) CHARACTERIZED in that it is as defined in any of claims 1 to 6, and / or a belt and pulley system (26), as defined in any of claims 7 to 11, in a bicycle belt and pulley system as defined in claim 18.
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-07-14| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-09-29| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 29/09/2020, OBSERVADAS AS CONDICOES LEGAIS. |
    2020-10-27| B25D| Requested change of name of applicant approved|Owner name: GATES CORPORATION (US) |
    2020-11-17| B25G| Requested change of headquarter approved|Owner name: GATES CORPORATION (US) |
    优先权:
    申请号 | 申请日 | 专利标题
    US23894409P| true| 2009-09-01|2009-09-01|
    US61/238,944|2009-09-01|
    US12/640,304|US8136827B2|2009-09-01|2009-12-17|Belt drive system|
    US12/640,304|2009-12-17|
    PCT/US2010/047088|WO2011028648A1|2009-09-01|2010-08-30|Belt drive system|
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