CN219076911U - Bicycle rim and bicycle - Google Patents

Abstract

The utility model discloses a bicycle rim and a bicycle, wherein the bicycle rim comprises a rim and a hub body positioned in the center of the rim, the number of spokes arranged between the rim and the hub body is a multiple of four, the spokes are distributed in groups of four to form spoke groups, and the spokes of each spoke group are equidistantly and parallelly arranged in the perfect circle direction of the rim. According to the rim and the bicycle, the spoke structure is novel and distinctive in appearance, the width of each spoke group corresponds to the width of the flange plate, so that the spoke length is shortened, the lateral rigidity of driving is improved, in addition, the gear shape of the coupling gear ring is optimized, transmission jamming or abnormal noise is eliminated, and the use experience is improved.

Description

Bicycle rim and bicycle

Technical Field

The utility model relates to the technical field of bicycles, in particular to a bicycle rim and a bicycle.

Background

At present, various riding equipment such as electric bicycle riding instead of walk, mountain bicycle body building and the like are becoming more and more popular. How to provide a riding device with higher driving performance and better use experience is the focus of attention in the industry.

In the existing spoke arrangement and installation structure, the diameter of the flange part for fixing the spokes at the center is generally smaller, for example, the diameter of the existing flange plate is generally not more than 80 mm, and the spokes with longer lengths are installed between the hub and the rim in a radial manner at the center. Chinese patent application 202221376766.6 discloses a bicycle with air purifying function, wherein in the wheel spoke structure of the conventional bicycle shown in the front wheel of fig. 1, spokes are equal in length and are arranged radially at the flywheel. In mountain bikes with higher performance requirements, the existing rim construction is highly desirable to improve in both appearance and lateral rigidity.

In addition, the outer circumference of the coupling of the existing bicycle is generally provided with threads, the inner wall of the hub shell is provided with corresponding threads, and the coupling is connected with the hub shell through screwing threads. The coupler is provided with a plurality of ratchets on the inner circumference for the purpose of meshed transmission with the ratchet wheel component of the tower foundation component. Most of ratchet shapes of the existing couplings are tooth points formed by straight lines, when the ratchet tooth shapes are ridden in sharp, abnormal sound phenomenon occurs because jack sheets of the ratchet assembly are clamped into ratchet rings of the couplings in a clamping mode, and the problems of rotation clamping collapse or abnormal sound exist in transmission. For example, one or two jack sheets of the ratchet assembly are meshed in place, the other two jack sheets or one jack sheet are blocked by the tooth tips of the ratchet teeth and are not completely meshed in place, so that bang can be sounded at the moment of starting after cruising and stopping feet, and riding experience is affected.

Disclosure of Invention

Accordingly, in order to solve the above-mentioned problems in the prior art, the present utility model provides a bicycle rim and a bicycle with novel appearance, which can improve the rigidity of the driving side and the overall performance while reducing spokes.

In a first aspect, the utility model relates to a bicycle rim comprising a rim and a hub located in the centre of the rim, the number of spokes mounted between the rim and the hub being a multiple of four, the spokes being arranged in groups of four to form a spoke group, the spokes of each spoke group being arranged in parallel equidistant in the direction of the perfect circle of the rim.

In a second aspect, the present utility model relates to a bicycle comprising a frame, a bicycle rim as described in the second aspect mounted on the frame.

According to the rim spoke braiding method, the bicycle rim and the bicycle, the diameter of the flange is increased, the spokes are grouped, each spoke of the spoke group is equidistantly and parallelly arranged on the flange with a large diameter, so that the length of the spoke between the rim and the hub is shortened compared with that of the spoke radially arranged in the center, and the lateral rigidity of the rim driving is improved. For example, the diameter of the traditional flange plate is generally within 80 millimeters, the diameter of the flange plate of the embodiment of the utility model is more than 95 millimeters, spokes are distributed in parallel at equal intervals within the range of the increased diameter of the flange plate, the rigidity of the driving side of the front wheel or the rear wheel of the bicycle is improved, and meanwhile, the service life and the anti-shock and anti-falling performance of the bicycle are improved.

In addition, the flange plate of the embodiment is designed into a detachable structure, and has the advantages of convenient maintenance and saving of processing and material cost.

In addition, according to the rim spoke braiding method, the bicycle rim and the bicycle, through optimizing the tooth shape of the coupling gear ring, the phenomenon of transmission jamming or abnormal noise is eliminated, and the riding experience of a user is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a block diagram of a first embodiment of a bicycle rim braiding method of the present embodiment;

FIG. 2 is a front wheel hub assembly view of a first embodiment of the bicycle rim braiding method of the present embodiment;

FIG. 3 is an exploded front wheel hub structure view of a first embodiment of the bicycle rim braiding method of the present embodiment;

FIG. 4 is an exploded front wheel structure view of the first embodiment of the bicycle rim weaving method of the present embodiment;

FIG. 5 is a front wheel center cross-sectional view of a first embodiment of the bicycle rim weaving method of the present embodiment;

FIG. 6 is an exploded rear wheel structure view of the first embodiment of the bicycle rim weaving method of the present embodiment;

FIG. 7 is a rear wheel hub assembly view of a first embodiment of the bicycle rim braiding method of the present embodiment;

FIG. 8 is a rear wheel center cross-sectional view of the first embodiment of the bicycle rim weaving method of the present embodiment;

FIG. 9 is an exploded rear wheel hub structure view of the first embodiment of the bicycle rim braiding method of the present embodiment;

FIG. 10 is an enlarged view of the connecting ring gear of the first embodiment of the bicycle rim braiding method of the present embodiment;

FIG. 11 is a schematic structural view of a second embodiment of the bicycle rim braiding method of the present embodiment;

FIG. 12 is a schematic structural view of a third embodiment of a bicycle rim braiding method according to the present embodiment;

FIG. 13 is a schematic structural view of a fourth embodiment of a bicycle rim braiding method of the present embodiment;

FIG. 14 is a flow chart of the bicycle rim braiding method according to the present embodiment.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Method embodiment:

referring to fig. 14, the rim spoke knitting method of the present embodiment includes the following steps:

step 1: arranging a rim and a hub body positioned in the center of the rim;

step 2: the number of the spokes arranged between the rim and the hub body is a multiple of four, the four spokes form spoke group distribution on the perfect circle direction (A direction shown in figure 1) of the rim, and the spokes of each spoke group are equidistantly and parallelly arranged on the perfect circle direction (A direction shown in figure 1) of the rim.

The spoke groups in this embodiment can be arranged in various groups. The spoke group can be three groups or four groups or five groups or six groups or seven groups, and the specific spoke group selection is determined according to the actual whole vehicle design and performance requirements.

Referring to fig. 3 and 9, the hub body is formed with a spoke mounting portion 201 or a spoke mounting portion 601 having a large diameter.

The hub body is detachably provided with large-diameter flanges (30 or 70), the circumference of each flange is provided with a plurality of pairs of spoke ears, the pairs of the spoke ears correspond to the groups of the spoke groups, for example, when the spoke groups are three groups, the spoke ears of the flange are also provided with three pairs; when the spoke groups are four groups, the spoke ears of the flange plate are provided with four pairs, and so on. The rim spoke knitting method of this embodiment employs a flange or spoke attachment portion of increased diameter. Seen from the right circular direction (for example, the direction A shown in fig. 1 or the opposite direction) of the rim, each spoke of the spoke group is equidistantly and parallelly arranged on a flange plate or a spoke mounting part with a large diameter, so that the length of the spoke between the rim and the hub is shortened, the rigidity of the driving side of the front wheel or the rear wheel of the bicycle is directly improved, and the service life, the shock resistance and the falling resistance of the bicycle are improved.

As shown in fig. 4, 5 or fig. 6 and 8, on the spoke mounting, two spokes inside each spoke group are mounted on the corresponding spoke mounting part at one end and fixed on the rim at the other end. One end of each of the two inner spokes is arranged on a flange plate on the hub, the other end of each of the two inner spokes is fixed on two sides of the fixed position of the rim, for example, the top ends of the first spoke group spokes B11 shown in FIG. 4 pass through the fixed holes 101 of the rim 10 through fixed nails to finish the installation.

The straight line width occupied by four spokes of the same spoke group on the circumference of the rim becomes the rim fixing width of the spoke group. The width of each spoke group does not exceed the width of the flange plate used by the corresponding hub, and the rim fixing width of each spoke group does not exceed the width of the flange plate.

Example 1

Referring to fig. 1 to 5, a front wheel structure of five spoke sets is shown. Fig. 6 to 10 show the rear wheel structure of five spoke groups. The front wheel and the rear wheel of the embodiment adopt the rim braiding method of the method embodiment.

As shown in fig. 1, the bicycle rim of this embodiment includes a front rim 10 and a front hub 20 located in the center of the rim, five spoke groups B1-B5 are installed between the front rim 10 and the front hub 20, each spoke group includes four spokes, for example, the first spoke group B1 includes spokes B11-B14. The total number of spokes of the rim is a multiple of four, and the spokes of each spoke set are equally spaced in parallel arrangement in the true circular direction of the rim 10.

Referring to fig. 2 to 4, the front wheel hub 20 is detachably provided with a front wheel flange 30. The front wheel hub 20 is supported at its center by a first bearing 22 and a second bearing 23 on a first axle core 21.

The front wheel hub shell 20 is provided with a first bushing 26 on one side of the first axle core 21 and a second bushing 27 on the other side, and the first bushing 26 can be internally provided with a release rubber ring. In other embodiments, the first liner 26 may be threadably coupled to the first shaft core 21, and in threaded embodiments, a rubber ring is not required.

The front wheel hub 20 includes a first spoke attachment portion 201 and a first connection portion 203 on an exterior thereof. The first spoke mounting part 201 is provided with a front wheel spoke clamping groove group, such as a front wheel spoke clamping groove group 202, corresponding to the spoke group number.

The first connecting portion 203 is provided with a first quick-release positioning portion 204, and the middle portion of the front wheel flange 30 is provided with a second quick-release positioning portion 321 cooperating with the first quick-release positioning portion 204. The first quick release positioning portion 204 and the second quick release positioning portion 321 can be matched in various manners, such as different matching shapes or different matching manners, including sliding or tightly sliding or fixed spline matching manners. In this embodiment, the first quick release positioning portion 204 is a convex bone; the second quick release positioning portion 321 is a groove. The front wheel flange 30 is provided with a mounting hole 31 at the center, the mounting hole 31 comprises hole edges corresponding to the spoke groups, and the hole edges are provided with the second quick-release positioning parts 321.

The front wheel flange 30 is detachably mounted on the front wheel hub 20 by a second quick-release positioning portion 321 matched with the first quick-release positioning portion 204.

Five pairs of spoked ears, such as a first pair 331 and a second pair 332, are provided on the outer circumference of the front wheel flange 30. The number of groups of the spoke ears corresponds to the number of groups of spoke groups adopted by the current rim, the width of each spoke group does not exceed the width of the used flange, and the rim fixing width of each spoke group does not exceed the width of the used flange.

Referring to fig. 6 to 8, the bicycle rim of the present embodiment further includes a rear wheel rim 50 and a rear wheel hub body 60 located at the center of the rear wheel rim 50, five spoke groups C1-C5 are installed between the rear wheel rim 50 and the rear wheel hub body 60, each spoke group includes four spokes, for example, the first spoke group C1 includes spokes C11-C14. The number of spokes of the rear wheel rim 50 is a multiple of four, the four spokes forming a spoke set distribution, the spokes of each spoke set being equally spaced in parallel arrangement in the true circular direction of the rim.

Referring to fig. 9, the center of the rear wheel hub 60 is supported on the second axle core 61 by a third bearing 62 and a fourth bearing 63. The rear wheel hub 60 includes a second spoke mounting portion 601 at an exterior thereof for a second connection portion. The second spoke mounting part 601 is provided with rear spoke clamping groove groups corresponding to the spoke groups, such as rear spoke clamping groove group 6011.

The second connecting portion is provided with a third quick-release positioning portion 604, and the middle portion of the rear wheel flange 70 is provided with a fourth quick-release positioning portion 721 matching with the third quick-release positioning portion 604. The third quick release positioning portion 604 and the fourth quick release positioning portion 721 can be engaged in various manners, such as different engaging shapes or different engaging manners, including sliding or tightly sliding or fixed spline engaging manners. In this embodiment, the third quick release positioning portion 604 is a convex bone; the fourth quick release positioning portion 721 is a groove.

Referring to fig. 10, the second axle core 61 is rotatably mounted on the tower foundation assembly 80 at the side of the second spoke mounting portion 601. The middle part of the second spoke mounting part 601 is recessed to form a transmission cavity, and the inner wall of the transmission cavity forms a first transmission key 6012. A coupling ring gear 90 is mounted in the drive chamber. The coupling ring gear 90 includes ratchet teeth 91 formed at an inner circumference and a second driving key 93 formed at an outer circumference.

The second transmission key 93 of the outer circumference of the coupling ring gear 90 is in driving engagement with the first transmission key 6012. The tower foundation assembly 80 is in turn in driving connection with the rear wheel hub 60 via the ratchet teeth 91 of the coupling gear ring 90 and the second drive key 93.

The foundation assembly 80 includes a foundation shell 81, a coupling ring gear 90, and a ratchet assembly.

The second shaft core 61 is provided with a limiting sleeve 84 interposed between the fifth bearing 82 and the sixth bearing 83, and the tower foundation shell 81 is rotatably mounted on the second shaft core 61 via the fifth bearing 82 and the sixth bearing 83. The rear wheel hub shell 20 is provided with a sealed third bushing 66 on one side of the second axle core 61.

The tower foundation shell 81 is provided with a fourth bushing 89 which is mounted in a plug-in manner on a side away from the rear wheel hub body 60.

The fourth bushing 89 is fitted with a release rubber ring at the position where it is fitted to the second shaft core 61. In other embodiments, the fourth bushing 89 may be threaded to the shaft core and may be provided with a rubber ring.

The foundation shell 81 has a mounting portion 85 formed on a side close to the drum, and a plurality of mounting grooves 86 are provided in the mounting portion 85.

As shown in fig. 9, the ratchet assembly includes at least one set of jack tabs and springs, such as jack tab 87 and corresponding spring 88, that bear against the corresponding jack tab. Each group of jack sheets and springs are installed in the corresponding installation groove. The jack sheet is clamped with the ratchet 91 on the inner circumference of the coupling gear ring 90, so that the transmission between the tower foundation and the coupling gear ring 90 is realized.

In the embodiment, six groups of jack sheets and springs are arranged, three groups of jack sheets are meshed with corresponding ratchets simultaneously to finish one-time transmission, and the remaining three groups of jack sheets finish the next transmission. The three groups of jack sheets are clamped into the coupling gear ring 90 under the action of springs to finish the transmission from the tower foundation to the hub. It will be appreciated that the ratchet assembly may also be provided with two sets of jack tabs which simultaneously engage corresponding ratchet teeth to complete the transmission.

As shown in fig. 10, in order to avoid abnormal noise caused by the fact that the plurality of jack pieces are locked into the coupling gear ring 90 asynchronously, a rounding process is adopted for the tooth tip of each ratchet tooth 91 of the coupling gear ring, and the tooth tip is rounded to form an arc angle. And, the surface of each second transmission key 93 of this shaft coupling ring gear 90 outer circumference grinds the arc surface to solve tower base and the rotatory card of flower-drum and burst abnormal sound problem.

Example 2

Referring to fig. 11, a front wheel structure of three spoke groups is shown, and a rear wheel structure of the three spoke groups is the same as the front wheel in terms of spoke braiding, and the rim braiding method of the method embodiment is adopted.

The bicycle rim of this embodiment includes a rim 200 and a hub 230 positioned in the center of the rim, with three spoke sets D1-D3 mounted between the rim 200 and the hub 230, each spoke set including four spokes, such as a first spoke set D1 including spokes D11-D14. The total number of spokes of the rim is a multiple of four, and the spokes of each spoke set are equally spaced in parallel arrangement in the true circular direction of the rim 200.

The rim of the three-group spoke group is different from the rim structure of the five-group spoke group in that the hub and the flange structure which is detachably arranged on the hub are different from each other except for the difference of spoke braiding methods. In order to correspond to the installation of the three groups of spokes, the connecting part at one end of the hub is required to be provided with three groups of spoke clamping groove groups corresponding to the number of the spoke groups. The large-diameter flange spoke ear at the other end of the hub has different structures. In this embodiment, six sets of flanges for the spoked ears may be used, only three of which are used. Or a flange plate provided with three groups of spoke ears is adopted.

Example 3

Referring to fig. 12, a front wheel structure of four spoke groups is shown, and a rear wheel structure of the four spoke groups is the same as the front wheel in terms of spoke braiding, and the rim braiding method of the method embodiment is adopted.

The bicycle rim of this embodiment includes a rim 300 and a hub 330 at the center of the rim, four spoke sets E1-E4 are mounted between the rim 300 and the hub 330, each spoke set including four spokes, such as a first spoke set E1 including spokes E11-E14. The total number of spokes of the rim is a multiple of four, and the spokes of each spoke set are equally spaced in parallel arrangement in the true circular direction of the rim 300.

The rim of the four-group spoke group is different from the rim of the five-group spoke group in that the hub and the flange structure which is detachably arranged on the hub are different from each other except for the difference of spoke braiding methods. In order to correspond to the installation of four groups of spokes, the connecting part at one end of the hub is required to be provided with four groups of spoke clamping groove groups corresponding to the number of the spoke groups. The large-diameter flange spoke ear at the other end of the hub has different structures. In this embodiment, a flange with six sets of spoked ears may be used, four of which are used individually. Or a flange plate provided with four groups of spoke ears is adopted.

Example 4

Referring to fig. 13, a schematic structure of a rim of seven spoke groups is shown, and a flange structure is a schematic structure.

The bicycle rim of this embodiment includes a rim 400 and a hub 430 located in the center of the rim, with seven spoke sets mounted between the rim 400 and the hub 430. The total number of spokes of the rim is a multiple of four, and the spokes of each spoke set are equally spaced in parallel arrangement in the true circular direction of the rim 400.

The rim of the seven groups of spokes and the rim structure of the five groups of spokes are different in that the hub and the flange structure which is detachably arranged on the hub except for the difference of spoke braiding methods. In order to correspond to the installation of seven groups of spokes, seven groups of spoke clamping groove groups corresponding to the number of the spoke groups are required to be arranged at the connecting part of one end of the hub. The large-diameter flange disc spoke ear at the other end of the hub has different structures, and a flange disc provided with seven groups of spoke ears is adopted.

Example 5

The present embodiment also relates to a bicycle comprising a frame, a bicycle rim mounted on the frame as described in embodiments 1 to 4.

In the bicycle transmission, the pedal is stepped on to drive the toothed disc, the chain is driven, the chain drives the flywheel, the flywheel drives the tower foundation 80, the ratchet assembly in the tower foundation 80 drives the coupling gear ring 90, the coupling gear ring 90 drives the hub, and the hub finally drives the wheel to rotate through spokes.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims (9)

1. The bicycle rim comprises a rim body and a hub body positioned in the center of the rim body, and is characterized in that a plurality of groups of spoke groups with four spokes as one group are arranged between the rim body and the hub body, the total number of the spokes is a multiple of four, and the spokes of each spoke group are arranged in parallel at equal intervals in the perfect circle direction of the rim body.

2. Bicycle rim according to claim 1, wherein the spoke groups are three or four or five or six or seven spoke groups.

3. The bicycle rim of claim 1, wherein the hub has a flange removably mounted thereon, the flange having a plurality of pairs of spokes, the pairs of spokes corresponding to the number of sets of spokes, each set of spokes having a width not exceeding the width of the flange, and each set of spokes having a rim retaining width not exceeding the width of the flange.

4. The bicycle rim of claim 3, wherein the rim is a front rim, the hub is a front hub, the flange is a front flange, the center of the front hub is supported on the first axle through a first bearing and a second bearing, the outer portion of the front hub includes a first spoke mounting portion and a first connecting portion, a first quick-release positioning portion is disposed on the first connecting portion, and a second quick-release positioning portion matched with the first quick-release positioning portion is disposed in the middle of the front flange.

5. The bicycle rim of claim 3, wherein the rim is a rear wheel rim, the hub is a rear wheel hub, the flange is a rear wheel flange, the center of the rear wheel hub is supported on the second axle core through a third bearing and a fourth bearing, the outside of the rear wheel hub comprises a second spoke mounting part and a second connecting part, a third quick-release positioning part is arranged on the second connecting part, and a fourth quick-release positioning part matched with the third quick-release positioning part is arranged in the middle of the rear wheel flange.

6. The bicycle rim of claim 5, wherein the second axle core is rotatably mounted on the second spoke mounting portion side with a tower foundation assembly including a tower foundation housing rotatably mounted on the second axle core via a fifth bearing and a sixth bearing, a coupling ring gear and a ratchet assembly.

7. The bicycle rim of claim 6, wherein the second spoke mounting part forms a recess forming a driving cavity, an inner wall of the driving cavity forms a first driving key, and the coupling ring gear includes ratchet teeth formed at an inner circumference and a second driving key formed at an outer circumference.

8. The bicycle rim of claim 7, wherein the ratchet assembly includes at least one set of jack tabs and springs abutting against corresponding jack tabs, the same set of jack tabs effecting transmission between the tower foundation and the coupling ring gear when the same set of jack tabs are engaged with the ratchet teeth, the ratchet teeth tips of the coupling ring gear being rounded, and the surface of the second transmission key being an arcuate surface.

9. A bicycle comprising a frame, characterized in that: a bicycle rim as claimed in any one of claims 1 to 8 mounted on the frame.

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