TWI656986B - Bicycle flower hub structure - Google Patents

Abstract

A bicycle flower hub structure comprising: a flower hub, a ratchet set and a drive seat, wherein the first and second toothed discs of the ratchet set are provided with meshing right side teeth and left side teeth on both sides, The flower hub can be mounted on the right side or the left side of the bicycle pedal crank, and the driving seat is oppositely mounted on the right side or the left side of the flower hub, and the right tooth is meshed through the first and second toothed discs, or The left tooth is meshed and interlocked to achieve the riding effect of the drive seat and the drive toothed disc interchanged.

Description

Bicycle flower hub structure

The invention relates to a flower hub structure, in particular to a bicycle flower hub structure which can replace the left and right driving state.

According to a bicycle hub structure, as shown in FIG. 12, the utility model comprises a flower hub 50, a driving base 60 and a ratchet set 70 assembled between the flower hub 50 and the driving base 60. The ratchet set 70 includes a linkage toothed disc 71, a movable toothed disc 72, and two elastic members 73. One side surface of the interlocking toothed disc 71 is provided with interlocking teeth 711, and is restrained in the flower hub 50 by an elastic member 73. One side surface of the driving toothed disc 72 is provided with a driving tooth 721, and is restrained in the driving base 60 by an elastic member 73. When the flower hub 50 and the driving base 60 are assembled and assembled, the interlocking toothed plate 71 is mounted. And the movable toothed disc 72 is facing, and the interlocking toothed disc 71 and the driven toothed disc 72 are pushed outward by the elastic member 73, so that the interlocking tooth 711 meshes with the driven tooth 721, and further passes through the driving base. The forward rotation of 60 is coupled with the rotation of the flower hub 50 to reach the state of riding forward. When the state is reversely rotated, the driving tooth 721 of the 72 toothed disk will detach from the interlocking tooth 711 of the interlocking toothed disk 71. , forming a riding state with only one-way drive.

Looking at the above-mentioned conventional structure, it is not difficult to find that there are still some shortcomings, the main reason is as follows: the linkage toothed disc 71 of the conventional ratchet set 70 and the driven toothed disc 72 are only provided with the meshing linkage on one side. The tooth 711 and the driving tooth 721, when the structure is used, the driving seat 60 can only be set It is placed on the right side of the flower hub 50 to provide a forward state of the user to step on the rotation. If the driver base 60 is placed on the left side of the flower hub 50, the toothed disk 71 of the ratchet wheel set 70 and the toothed disk 72 are driven. If the configuration is not changed, the user will step on the pedal 60 to cause the counterclockwise driving state relative to the hub 50, resulting in an idling situation, and the left and right side drivers cannot be used interchangeably, which is inconvenient to use and lacks practical use. Sex.

In addition, in order to improve the above-mentioned conventional flower hub, it is impossible to provide the left and right drive interchange, and a bicycle hub structure that can be exchanged for left and right drive has been developed on the market. Please view it as shown in Figures 13 and 14, which include: A flower hub 80 and a ratchet disk 90 are formed. The center of the flower hub 80 is threaded with a mandrel 81. The mandrel 81 is sleeved with a plurality of bearings 811 and placed in the hub 80 by bearings 811. The pivoting position is formed, and the inner wall of the side end of the flower hub 80 is integrally provided with a fixing seat 82. The inner edge of the fixing seat 82 is provided with a square concave and convex shape, and an operating ring 83 is further mounted by the fixing seat 82. The actuating ring 83 is placed at the inner end of the fixing base 82 and fixed by the concave-convex surface 831, and the inner wall of the actuating ring 83 also has a square concave-convex surface 832 having a toothed disc 91 and a ratchet seat. In the two parts of the 92, the ratchet seat 92 is provided with a plurality of ratchet grooves 93, and the spring 94 and the ratchet teeth 95 are disposed at the ratchet groove 93, and then the ratchet seat 92 is placed into the flower hub 80. The ratchet seat 92 is located inside the actuating ring 83, and the ratchet 95 is pushed by the spring 94 and the outer top of the actuating ring 83 is concave. Surface 832, and then both ends of the hub 80 of the flower are screwed with a fixing screw member, thereby forming a combination that is the bicycle hub assembly.

In the above structure, when the bicycle is rotated and the ratchet disk 90 is rotated, the ratchet teeth 95 can externally bear against the concave and convex surface 832 of the actuating ring 83, that is, the flower hub 80 can be rotated in the same direction, and the ratchet disk 90 can be driven. When there is no rotation, the rotation of the flower hub 80 cannot drive the ratchet disk 90 to rotate. If the conventional bicycle flower hub structure is used for the interchange of the left chain and the right chain of the performance bicycle, the ratchet seat 92 is The position of the spring 94 and the ratchet 95 is interchanged to achieve a performance bicycle. The effect of the left and right chains is interchanged.

Looking at the above-mentioned conventional structure, it is not difficult to find that there are still some shortcomings. The main reason is as follows: When the above-mentioned flower hub structure is to be driven by the left and right, the ratchet disk 90 is removed by the flower hub 80. The springs 34 and the ratchet teeth 95 in the ratchet grooves 93 of the ratchet seat 92 are interchanged. Since the springs 94 and the ratchet teeth 95 are small in size and large in number, they are not only inconvenient to interchange, but also It is not easy to have the risk of falling and losing, which increases the difficulty of the exchange. In addition, the sharp corners of the shrapnel 94 have more doubts about cutting others in the exchange, and it is really lacking in practicality and improvement.

In view of this, the inventors have been engaged in the manufacturing development and design experience of related products for many years, and after detailed design and careful evaluation of the above objectives, the present invention has finally become practical.

The technical problem to be solved by the present invention is to provide a bicycle flower valley structure in view of the above-mentioned shortcomings existing in the prior art.

The bicycle hub structure includes: a flower hub, a ratchet wheel set, and a driving base, wherein the flower hub has an accommodating space at one end thereof, and the flower hub pivots a mandrel through the accommodating space, The inner wall surface of the accommodating space is provided with a combined section in a non-circular shape, and is disposed in a swaying ring. The inner diameter of the slewing ring is provided with a continuous concave-convex driving opening, and the ratcheting group includes a first sprocket wheel. a second toothed disc, a first elastic piece and a second elastic piece, one side of the first and second toothed discs are provided with a right side tooth, and a clockwise rotation is generated, and the first and second The other side of the toothed disc is provided with a left-side tooth and a counter-clockwise interlocking state, and the first and second elastic pieces are formed into a disc shape, wherein one side is lifted and provided with a plurality of elastic sheets. The other side forms a planar abutting portion, and the abutting portion abuts the outer side of the first and second toothed discs, and the outer edge of the first and second toothed discs is continuous. a concave-shaped interlocking end surface, and the first toothed disc is engaged with the driving end of the driving ring with the interlocking end surface, the driving seat sleeves the mandrel of the flower hub, and the driving seat is provided with a driving gear on the outer circumference thereof, and The inner diameter is provided with a continuous concave-convex driving opening, and the driving opening is matched with the interlocking end surface of the second toothed disc, and finally locked to the mandrel by a nut, thereby restraining the driving base.

Preferably, the driving opening of the slamming ring is matched with the interlocking end surface of the first sprocket to form a continuous concave and convex arc shape.

Preferably, the driving opening of the driving base and the interlocking end surface of the second toothed disc are combined to form a concave and convex arc shape.

Preferably, the first and second toothed discs are marked with a mark of R and L on the outer ring corresponding to the right tooth and the left tooth.

Preferably, the front portion of the accommodating space is more tightly assembled into a limiting ring, and the swaying ring is limited to the combined segment.

In contrast to the effects of the prior art: the first and second toothed discs of the ratchet set of the present invention are provided with meshing right and left teeth on both sides, so that the hub can be mounted on the right or left side of the bicycle pedal crank. The disc 41 is disposed on the right side or the left side of the flower hub, and is meshed with the right tooth by the first and second toothed discs, or the left tooth is meshed and interlocked to achieve the driving seat and the driving. The riding effect of the left and right interchangeable toothed discs.

In addition, the first and second elastic pieces are formed into a planar abutting portion, and are matched against the unaligned side of the first toothed disk and the second toothed disk, so that the first and second elastic pieces can not only pass through the abutting portion. 232 and the average force on the first and second toothed discs, it is more effective to avoid the elastic sheet body step Friction, improve the smoothness of the rotation of the first and second toothed discs.

Furthermore, the interlocking end faces of the first and second toothed discs are matched with the corresponding engaging openings and the driving openings to form a continuous concave-convex curved plum blossom shape, thereby effectively lifting the first toothed disc relative to the engaging opening and the second toothed disc The stability of the driving opening is avoided, and the sharp end angle is prevented from being bite or the card angle is delayed, so that the driving state can be connected to the transmission immediately and accurately, and the ride stability and safety are both.

〔this invention〕

10‧‧‧Flower hub

11‧‧‧ accommodating space

111‧‧‧Combination section

12‧‧‧ mandrel

13‧‧‧掣动环

131‧‧‧ Drive the opening

14‧‧‧ Limit ring

20‧‧‧ratchet group

21‧‧‧First toothed disc

211‧‧‧ right tooth

212‧‧‧left teeth

213‧‧‧Continuous end face

22‧‧‧second toothed disc

221‧‧‧ right tooth

222‧‧‧ left tooth

223‧‧‧ linkage

23‧‧‧First shrapnel

231‧‧‧Elastic sheet

232‧‧‧Abutment

24‧‧‧Second shrapnel

241‧‧‧Elastic sheet

242‧‧‧Abutment

30‧‧‧ drive seat

31‧‧‧ drive gear

32‧‧‧Drive opening

33‧‧‧ nuts

40‧‧‧Crank pedal

41‧‧‧ drive chain

42‧‧‧Chain

[知知一]

50‧‧‧Flower hub

60‧‧‧ drive seat

70‧‧‧ratchet set

71‧‧‧ linkage toothed disc

711‧‧‧ linkage teeth

72‧‧‧Drive the toothed disc

721‧‧‧Drive teeth

73‧‧‧Flexible parts

[习知二]

80‧‧‧Flower hub

81‧‧‧ mandrel

811‧‧‧ bearing

82‧‧‧ fixed seat

83‧‧‧ actuation ring

831‧‧‧

832‧‧‧ concave surface

90‧‧‧ ratchet disk

91‧‧‧ toothed disc

92‧‧‧ ratchet holder

93‧‧‧ ratchet groove

94‧‧‧ Spring

95‧‧‧ ratchet

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the invention.

Fig. 3 is a schematic view showing the first and second toothed discs of the present invention in a relative combination with the right teeth.

Figure 4 is a schematic cross-sectional view of the drive seat of the present invention mounted on the right side of the hub and clockwise rotation.

Fig. 5 is a cross-sectional view taken along line A-A corresponding to Fig. 4 of the present invention.

Fig. 6 is a cross-sectional view taken along line B-B of Fig. 4 corresponding to the present invention.

Fig. 7 is a schematic view showing the driving seat of the present invention relatively mounted on the right side of the flower hub and matched with the right driving tooth plate.

Fig. 8 is a schematic view showing the first and second toothed discs of the present invention being engaged with the right side teeth and rotating counterclockwise when mounted on the right side of the flower hub to form a skipping idling.

Figure 9 is a schematic view showing the first and second toothed discs of the present invention in a relative combination of the left teeth.

Figure 10 is a schematic cross-sectional view of the drive seat of the present invention mounted on the left side of the hub and counterclockwise rotation.

Figure 11 is a schematic view showing the driving seat of the present invention mounted on the left side of the flower hub together with the left driving tooth plate.

Figure 12: A schematic diagram of the prior art.

Figure 13: is another exploded view of the conventional.

Figure 14 is a cross-sectional view of another conventional combination.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [Simplified Description of the Drawings] for details:

First, please refer to the first, second and third figures, a bicycle rear hub structure, comprising: a flower hub 10, a ratchet set 20 and a drive seat 30. The flower hub 10 has an accommodation at one end. The space 11 and the hub 10 are disposed with a mandrel 12 extending through the accommodating space 11 . The inner wall surface of the accommodating space 11 is provided with a combination section 111 in a non-circular shape, and is disposed in a swaying ring 13 . The inner diameter of the moving ring 13 is provided with a continuous concave-convex driving opening 131, and the front portion of the accommodating space 11 is more tightly assembled into a limiting ring 14, and the swaying ring 13 is confined in the combined segment 111. 20 includes a first toothed disc 21, a second sprocket wheel 22, a first elastic piece 23, and a second elastic piece 24. One side of the first and second spurs 21, 22 are occluded with right side teeth. 211, 221, and the clockwise rotation of the interlocking state, and the other side of the first and second toothed discs 21, 22 are provided with the left teeth 212, 222, and the interlocking state of the counterclockwise rotation, and The first and second spurs 21, 22 are attached to the outer rim corresponding to the right teeth 211, 221 and the left teeth 212, 222, and are marked with R and L. The first and second elastic pieces 23, 24 are all formed into a disk shape, wherein one side is lifted with a plurality of elastic sheets 231, 241, and the other side is formed with a planar abutting portions 232, 242, and The abutting portions 232 and 242 respectively abut against the outer sides of the first and second toothed discs 21 and 22, and the outer edges of the first and second toothed discs 21 and 22 are continuous. Concavely engaging the end faces 213, 223, and engaging the first toothed disc 21 with the interlocking end surface 213 and the driving opening 131 of the swaying ring 13, preferably, the driving opening 131 of the swaying ring 13 The interlocking end surface 213 of the first toothed disc 21 is formed to form a continuous concave and convex arc shape. The driving base 30 is sleeved with the mandrel 12 of the hub 10, and the driving seat 30 is provided with a driving gear 31 on the outer circumference. The driving opening 32 is provided with a continuous concave-convex shape, and the driving opening 32 is matched with the engaging end surface 223 of the second toothed disc 22, preferably, the driving opening 32 of the driving base 30 and the second toothed disc 22 The interlocking end surface 223 is formed to form a continuous concave-convex curved plum blossom shape, and the engaging opening state of the driving opening 32 and the linking end surface 223 is raised, and finally, a nut 33 is locked on the mandrel 12, thereby abutting The drive base 30 is limited.

The composition and the state of use of the structure, and then refer to the figures 2, 3 and 4, 5, and 6 to show that the combination of the hub 10 in the accommodating space 11 matches the snap-locking ring 13, Then, a limit ring 14 is forced into the front portion of the accommodating space to restrict the positioning of the swaying ring 13. The ratchet set firstly embosses a first elastic piece 23 with a plurality of elastic pieces 231 which are cocked. The first toothed disc 21 is disposed in the accommodating space 11 with the right tooth 211 facing outward, and the engaging end surface 213 of the outer rim is engaged with the swaying ring 13 . The opening 131 is engaged with the same, and the left tooth 212 is abutted against the abutting portion 232 of the first elastic piece 23, and the second elastic piece 24 is first assembled into the driving base 30 with the elastic piece 241 facing inward. The second toothed disc 22 is assembled into the driving base 30 with the right tooth 221 facing outward, and is coupled with the driving opening 32 through the interlocking end surface 223 of the outer ring edge, and the left tooth 222 is abutted against the second elastic piece 24 . The abutting portion 242 is configured to respectively join the first and second spurs 21 and 22 into the hub 10 and the driving base 20, and both of them are attached to the left teeth 212 and 222. The abutting portions 232 and 242 of the two elastic pieces 23 and 24 finally assemble the driving base 30 through the mandrel 12 and the flower hub 10, and further match the screw lock of the nut 33 to make the first and second toothed disks. 21, 22 face, and receive the first, When the push of the two elastic pieces 23, 24 reaches the meshing state of the right teeth 211, 221 of the first and second spurs 21, 22, the clockwise movement of the drive base 30 relative to the hub 10 is also referred to. In the seventh and eighth figures, the rafter 10 can be connected to the riding forward direction, so that the driving base 30 can be oppositely mounted on the right side of the bicycle, and the crank pedal 40 is provided on the right side to drive the sprocket 41 with the chain 42. The driving gear 31 of the driving base 30 reaches a state of riding forward. When the state is reversed by the clock, the right teeth 211 and 221 of the first and second toothed disks 21 and 22 are mutually jumped to form a one-way driving only. The riding state.

Another state of use of the structure, as shown in Figures 9, 10, and 11 continues, since the stunt bicycle has a drive toothed disc 41 mounted on the left side of the crank pedal, due to the first and second teeth of the current ratchet set 20 The discs 21 and 22 are meshed and interlocked by the right teeth 211 and 221, and only have a clockwise driving state. When the clock is rotated counterclockwise, the jump is idling. If the hub 10 is directly turned 180 degrees, the driving seat 30 is rotated. When it is located on the left side, the user's clockwise stepping will cause the drive base 30 to be driven against the hub 10 in a counterclockwise state, resulting in an idling condition, and the drive seat 30 can be detached from the hub 10 at this time. At the same time, the first and second toothed discs 21 and 22 are taken out, and the left and right teeth 212 and 222 are assembled outwards. Finally, the driving base 30 is oppositely mounted on the left side of the flower hub 10 to make the first and second teeth. The discs 21, 22 face each other and are engaged by the first and second elastic pieces 23, 24 to the meshing state of the left teeth 212, 222 of the first and second toothed discs 21, 22, thereby passing through the user. The pedaling of the hour hand drives the driving base 30 to counterclockwise with respect to the flower hub 10, thereby interlocking the flower hub 10 In the form of riding forward, the driving base 30 can be oppositely mounted on the left side of the bicycle, and the crank pedal 40 is provided on the left side. The driving toothed disc 41 is coupled with the chain 42 to drive the driving gear 31 of the driving base 30 to achieve riding forward. In the state, when the state is stepped on the clock, the left teeth 212, 222 of the first and second toothed discs 21, 22 will jump off each other to form a riding state with only one-way driving.

With the structure of the above specific embodiment, the following benefits can be obtained: the first and second toothed discs 21, 22 of the ratchet set 20 of the present invention are provided with engaging right side teeth 211, 221 and left side teeth 212 on both sides. The 222 is configured such that the hub 10 can be mounted on the right or left side of the bicycle pedal 40, and the driving base 30 is oppositely mounted on the right or left side of the hub 10 while passing through the first and second spurs. 21, 22, the right teeth 211, 221 are meshed and interlocked, or the left teeth 212, 222 are meshed and interlocked, so as to achieve the riding effect of the drive seat 30 and the drive toothed disc 41 interchangeable.

In addition, the first and second elastic pieces 23 and 24 are formed into planar abutting portions 232 and 242, and are matched against the outer sides of the first toothed disk 21 and the second toothed disk 22, so that the first The two elastic pieces 23 and 24 can not only receive the average force on the first and second toothed plates 21 and 22 through the abutting portion 232, but also effectively avoid the friction of the elastic sheets 231 and 241, and lift the first and second teeth. The smoothness of the rotation of the disks 21, 22.

Furthermore, the interlocking end faces 213 and 223 of the first and second toothed plates 21 and 22 are matched with the corresponding engaging openings 131 and the driving openings 32 to form a continuous concave and convex arc shape, thereby effectively lifting the first toothed disk 21 The stability of the engagement opening 131 and the second spur 22 relative to the driving opening 32, while avoiding the sharp end angle occlusion wear or the card angle delay, so that the driving state can be immediately and accurately connected to the transmission, both Riding stability and safety.

In summary, the present invention has indeed achieved a breakthrough structural design, and has improved invention content, and at the same time, can achieve industrial utilization and progress, and the present invention is not found in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, the application for invention patents is filed according to law, and the examination authority of the bureau is required to grant legal patent rights.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; that is, the equivalent variation and modification of the scope of the patent application of the present invention, All should remain within the scope of the invention patent.

Claims (5)

A bicycle rear hub structure includes: a flower hub having an accommodating space at one end thereof, and the flower hub is pivotally disposed with a mandrel through the accommodating space, and the inner wall surface of the accommodating space is non-circular a combination section is arranged, and is combined with a swaying ring, the inner diameter of the swaying ring is provided with a continuous concave-convex driving opening; a ratcheting group includes a first spur disk, a second spur disk, and a first a spring piece and a second elastic piece, one side of the first and second toothed disks are provided with right side teeth, and a clockwise rotation state is generated, and the other side of the first and second toothed disks is phased. The bite is provided with a left tooth and a counterclockwise rotation state. The first and second elastic pieces are formed into a disc shape, wherein one side is lifted to provide a plurality of elastic sheets, and the other side is formed into a flat shape. Abutting portion, and the abutting portion respectively abuts the outer side of the first and second toothed discs, and the outer edge of the first and second toothed discs form a continuous concave and convex joint end face, and The first toothed disc is matched with the driving opening of the swaying ring by a linking end surface; The mandrel of the flower hub is sleeved, the driving seat is provided with a driving gear on the outer circumference, and the inner diameter is provided with a continuous concave-convex driving opening, and the driving opening is matched with the interlocking end surface of the second toothed disc, and finally A nut is then locked to the mandrel to thereby restrain the drive seat. The bicycle hub structure according to claim 1, wherein the driving opening of the swaying ring and the interlocking end surface of the first sprocket are matched to form a continuous concave and convex arc shape. The bicycle hub structure according to claim 1, wherein the driving opening of the driving base and the interlocking end surface of the second toothed disc are combined to form a concave and convex arc shape state. The bicycle hub structure according to claim 1, wherein the first and second toothed discs are marked with R and L marks on the outer ring corresponding to the right tooth and the left tooth. The bicycle hub structure according to claim 1, wherein the front portion of the accommodating space is more tightly assembled into a limit ring, and the sling ring is limited to the combined segment.