TW201311476A - One-sided displacement hub ratchet structure - Google Patents

Abstract

The present invention mainly provides one-sided displacement hub ratchet structure, which is equipped between the wheel hub base and the sleeve base and includes a driving member capable of performing the linear movement in the sleeve base and equipped with a first tapped ratchet teeth part in the axial direction on one side, wherein the ratchet part is formed by the two adjacent faces of a triangle; a driven member fixed and connected in the wheel hub base, and is equipped with a second tapped ratchet teeth part in the axial direction on one side that meshes with the first ratchet teeth part. A restoration element is equipped between the sleeve base and the driving member. By means of the abovementioned components, the driven member can be quickly and simply assembled and fixed inside the wheel hub base, and the design of triangular tapped surfaces between the first and second ratchet teeth will reduce the contact area and the wearing, and enable the meshing and de-meshing to be more quickly and smoothly, and enhance the activation sensitivity of the ratchet structure.

Description

Single-sided displacement flower hub ratchet structure

The invention relates to a ratchet structure of a unilateral displacement flower hub, in particular to a ratchet structure which can reduce the frictional resistance, make the meshing and decoupling action more rapid and smooth, and effectively improve the transmission efficiency.

The wheel hub structure of the bicycle is mainly composed of a hub seat, a shaft rod, a rotating group, a toothed disc and the like to provide the positioning of the axle and the smooth rotation of the rim, and can be further added according to different shifting requirements. Sleeve seat and shifting device. If the transmission is differentiated, the hub structure can be further divided into two types: one-way and two-way. The one-way type refers to the wheel that can only be rotated in a single direction, and the transmission direction is usually the forward direction of the bicycle, and the reverse direction is not. The idling state of the transmission; the two-way type means that both the forward and reverse rotation of the hub can be transmitted. The one-way hub with the ratchet structure has different ratcheting directions according to the clamping direction of the card, and can be roughly divided into radial clamping and axial clamping, wherein the radial locking ratchet refers to the wheel hub. The diametrical direction extends the convex teeth and cooperates with the radially-clamped ratchet block, and the axially-clamped ratchet refers to the axially extending convex teeth toward the hub seat, and cooperates with the axially-arranged ratchet The seat is to be driven.

Where the axially-punched one-way ratchet structure is actuated, a relative linear displacement occurs between the hub seat and the ratchet seat to disengage the meshing state, and a gap is generated to achieve the de-toothing action, and the idling state is not driven, and The linear displacement actuation mode between the two sides of the hub and the hub seat and the sleeve seat is divided into two types: bilateral linear displacement and single-sided linear displacement.

According to the conventional double-sided linear displacement bicycle wheel hub ratchet structure, such as the wheel hub for bicycles and the like disclosed in the Japanese Patent No. 088117780, there is: a hub axle, a hub shell main setting Concentric with the hub axle, at least one bearing assembly including at least two bearings and disposed primarily between the hub axle and the hub housing such that the hub housing is mounted relative to the hub a shaft rotating, a rotor mounted to be rotatable relative to the hub axle and configured with at least one toothed wheel disposed on the rotor, a freewheeling device mounted to the rotor and the rotor Between the hub shells, and having a two-toothed disc, the tooth flanks of the toothed discs are pressed against each other by a tensioning device, the two-toothed discs are mainly disposed concentrically with the hub axle, and When the hub is properly assembled, at least in the stop position, it is mainly disposed on a plane perpendicular to the axis of the hub axle, and the toothed discs are kept floating so as to be relative to the hub axle Axial phase of the rod The inclination of a straight plane, wherein these two toothed discs disposed one after the system, and by at least one of its two flat opposite the outward side of the spring, pushing each other.

Another conventional unilateral linear displacement bicycle hub ratchet structure, such as the "flower hub ratchet device" disclosed in the Japanese Patent No. 096219287, includes: a set of rings, made of magnetically conductive metal, and a collar The ring-shaped inner peripheral wall is provided with a plurality of latching teeth arranged in a ring shape with the center of the shaft centered, each of which has an axial extension; and a ratchet block is a ring-shaped block having two end faces made of a magnetically conductive metal. The annular outer peripheral wall is axially displaceable to match the latching teeth, and one side annular ratchet is disposed on one end surface of the ratchet block; the one side annular ratchet is disposed on the end surface of a flywheel device, and One-way engagement with the lateral annular ratchet of the ratchet block; one or more permanent magnets are disposed on the end surface of the ratchet block without the lateral annular ratchet.

In the above structure, the former is provided with a screw ring on the right side of the hub body, and the plurality of teeth are arranged in a radial opposite ring between the screw ring and the one-toothed disk for mutual meshing positioning and relative linear displacement. The rotor and the other toothed disc are also provided with a plurality of teeth in a radial opposite ring for mutual meshing and positioning, and can be linearly displaced relative to each other to form a bilateral linear displacement mode, and the two-toothed discs are connected to each other. The utility model is provided with a plurality of teeth which are in mesh with each other and have a slope shape, and the spiral ring cooperates with the two-toothed disc and a spring to form a free wheel mechanism, and the toothed disc has a bilateral linear displacement actuation effect. When stepping forward, the teeth between the two-toothed discs push each other to generate a transmission effect, and when the reverse backwards are moved, the equal-tooth slope sides slide with each other, and cooperate with the two-toothed disc and the hub The bilateral linear displacement between the main body and the rotor can separate the two-toothed disc and be in an idling state; the latter structure is integrally provided with a lateral annular ratchet on the inner end surface of the flywheel device, and the ratchet block is oriented The flywheel device has a side ring at the end The teeth are engaged with the end face of the flywheel device, and the ratchet block is normally placed in the collar by the action of the permanent magnet, the ratchet block is linearly displaceable relative to the collar, and the lateral annular ratchet of the other side flywheel device The system is fixed, so that the linear displacement mode of the unilateral type is formed between the ratchet block and the flower hub, and the unidirectional meshing transmission and the reverse tooth removal are idling.

However, the former two conventionally engage the ratchet teeth, the teeth are all sloped, and the surfaces of the teeth are adjacent to one of the other sides by a slope, so that the teeth have a preset height, and the other There is a certain height difference between the teeth. During the linear operation of the toothed disc or the ratchet block, the contact area of the inclined surface of each tooth is large, and no gap can be generated, which is easy to cause wear and excessive friction. The speed of linear movement of the toothed disc and the ratchet block is slow, and the difference between the vertical surface and the height of each of the teeth is easy to make the ratchet wheel not smooth when it is actuated, which affects the reset meshing action of the toothed disc and the ratchet block. The sensitivity of the ratchet structure is also deteriorated, and the ratcheting benefit is affected. Moreover, in the ratchet structure of the single-sided linear displacement of the latter, the flywheel device is integrally provided with a lateral annular ratchet, and the forming thereof is not easy. Moreover, the dimensional accuracy of the ratchet is easily affected during the processing; further, the toothed disc and the spring and the ratchet block have a gap between the permanent magnet and the shaft of the hub body, and the spring or the permanent magnet is only sleeved when assembled Set on the shaft, The two ends are not properly positioned, so that each member is prone to deflection when it is actuated. It is easy to affect the smoothness of the ratchet structure under long-term use, and the overall structure is necessary for improvement; therefore, the inventor further provides a problem for the aforementioned problems. Practical and innovative single-sided displacement flower hub ratchet structure.

In view of the above, the unilateral displacement flower hub ratchet structure of the present invention comprises: a wheel hub having a hole on one side thereof, a shaft in the axial direction of the hole, and a hole in the hole a first fixing portion parallel to the shaft hole of the hub seat; a sleeve seat having a hole on one side thereof, wherein the hole is provided with a sliding groove parallel to the shaft hole of the sleeve seat; a driving member is An annular seat body having a plurality of teeth corresponding to the outer circumference of the sliding groove, and one of the side faces of the driving member is axially provided with a first ratchet portion having a tapered surface, which is formed in a triangular shape in a radial direction The two joint surfaces are formed into a tapered shape, and the surface area of one of the joint surfaces is smaller than the surface area of the other joint surface, so that the teeth of the driving member and the sliding groove are embedded with each other, and the driving member is linearly displaced in the sliding groove. a follower member is an annular seat body, and a second fixing portion is disposed on the outer circumference corresponding to the first fixing portion, and one side of the driven member is axially disposed to mesh with the first ratchet portion a second ratchet portion of the tapered surface, the second fixing portion and the first fixing portion are assembled and fixed to each other; Positioning element is disposed between the sleeve seat and the driving member; the driving member is linearly displaceable relative to the sleeve seat by the member, and the driven member is fixed to the hub seat to provide a single side The linear displacement effect is simple in structure and convenient in assembly, and the triangular conical surface design between the first and second ratchet portions can reduce the contact area and reduce the wear, thereby linearizing the driving member and the driven member. The displacement is slightly disengaged from the meshing state and creates a gap, which makes the meshing transmission and the tooth removal action faster, and improves the sensitivity of the ratchet structure actuation.

One of the objects of the present invention is to provide a unilateral displacement flower hub ratchet structure, which is provided with a first and a second ratchet portion that can be engaged with each other between a driving member and a driven member, which is attached to the radial direction. The direction is formed by a triangular shape and a tapered surface, which can reduce the contact area, linearly displace the driving member and the driven member to be slightly disengaged from the meshing state, and generate a gap, thereby engaging and disengaging the ratchet structure. The action is faster and smoother, which enhances the sensitivity of the actuation and the ratcheting efficiency to achieve excellent innovation and practicality.

The second object of the present invention is to provide a unilaterally displaced flower hub ratchet structure. The first and second fixing portions that can be assembled and fixed to each other are disposed between the hub seat and the driven member, so that the follower is fixed. In the hub seat, the driving member can be linearly displaced in the sleeve seat to provide a single-sided displacement actuation effect, which reduces interference during displacement actuation, and can reduce weight, and has simple components and convenient assembly.

The third object of the present invention is to provide a unilateral displacement flower hub ratchet structure, which is provided with a sleeve between the hub seat, the driving member, the driven member and the sleeve seat, and the driving member and the driven member can be provided. The guiding effect when linearly acting with the reset element to improve the efficiency of the ratchet structure transmission.

First, please refer to the first to seventh figures. The single-side displacement flower hub ratchet structure provided by the present invention is mainly disposed between a hub seat (10) and a sleeve seat (20), which includes There is: a driving member (30) disposed in the sleeve seat (20), a follower member (40) disposed in the hub seat (10), and a reset component group.

The hub seat (10) is a hollow seat body. One side of the wheel hub (10) is recessed with a predetermined depth (11), and a shaft (12) is axially disposed in the center of the hole (11). And the inner circumference of the hole (11) is provided with a first fixing portion (13) parallel to the shaft hole of the hub seat (10). In this embodiment, the first fixing portion (13) is tied to An internal thread portion is provided in the hole (11).

The sleeve seat (20) has a hollow cylindrical shape, and one hole (21) is disposed on one side thereof, and a sliding groove parallel to the shaft hole of the sleeve seat (20) is disposed in the inner circumference of the hole (21) ( 22), which is continuously provided with a plurality of grooves in the inner circumference of the hole (21).

The driving member (30) is an annular seat body, and a plurality of teeth (31) are continuously protruded from the outer circumference corresponding to the sliding groove (22), and a first side is arranged on one side of the driving member (30) a ratchet portion (32) is provided with a plurality of recesses (33) or protrusions having a tapered surface in a continuous ring. In the embodiment, the first ratchet portion (32) is a plurality of recesses (33). Each of the recesses (33) is formed by a recessed surface in a radial direction and formed into a groove shape, which is composed of a first joint surface (34) and a second joint surface (35). The surfaces of the first and second joints (34) (35) are triangular in shape and adjoin each other to form a recess (33), wherein the surface area of the first joint (34) is smaller than the second joint (35) a surface portion of the driving member (30) extending axially away from a side of the first ratchet portion (32). In the embodiment, the driving member (30) is away from the first ratchet portion (32). One side of the side axially extending and opposite positions are provided with at least two blocking portions (36); the teeth (31) of the driving member (30) and the sliding groove (22) are embedded with each other, and the first a ratchet portion (32) is disposed toward the hub seat (10), and the driving member (30) is Linearly displaced slide groove (22).

The follower (40) is an annular seat body, and a second fixing portion (41) is disposed on the outer circumference corresponding to the first fixing portion (13), and the second fixing portion (41) corresponds to the first portion. The fixing portion (13) is oppositely provided with an external thread portion; one side of the follower member (40) is axially provided with a second ratchet portion (42) engageable with the first ratchet portion (32), The continuous ring is provided with a plurality of convex portions (43) having a tapered surface, and each of the convex portions (43) is formed by two connecting faces in a radial direction to form a convex taper shape, which is formed by one of the inclined faces. The third joint surface (44) and the fourth joint surface (45) are formed. The surfaces of the third and fourth joint surfaces (44) (45) are triangular in shape and adjoin each other to form a convex portion (43). The surface area of the third junction (44) is smaller than the surface area of the fourth junction (45), and the radial direction of the protrusion (43) has a triangular cross section; the second fixing of the follower (40) The portion (41) and the first fixing portion (13) are screwed to each other, and the second ratchet portion (42) is disposed toward the sleeve seat (20) and mutually interacts with the first ratchet portion (32) Engaging, the first and third joints (34) (44) abut each other, and the second and fourth joints (35) (45) Reciprocal.

The resetting member (50) is disposed between the sleeve (20) and the driving member (30), and the resetting member (50) is a magnet group having a first magnetic member (51) and a second magnetic member (52), the first magnetic member (51) is disposed on a side of the driving member (30) away from the first ratchet portion (32), and the second magnetic member (52) is disposed on the second magnetic member (52) In the hole (21) of the sleeve seat (20), and the first and second magnetic members (51) (52) are disposed in the same magnetic state; by the first and second ratchet portions (32) (42) The intermeshing state, together with the setting of the resetting element (50), can provide the driving member (30) toward the slave by utilizing the characteristics of magnetic homogeneity between the first and second magnetic members (51) (52) The piece (40) rotates one of the driving forces.

The sleeve (60) has a diameter larger than a diameter of the shaft (12) and smaller than an aperture of the driving member (30), the follower (40) and the resetting member (50). The sleeve (60) is sleeved on the shaft (12) between the hub seat (10) and the sleeve seat (20), and is located on the shaft (12) and the driving member (30) and the driven member (40) And between the reset element (50), to provide a guiding effect when the driving member (30) and the resetting member (50) are linearly displaced.

When the sleeve seat (20) drives the driving member (30) to rotate, it pushes the driven member (40) by the first connecting surface (34) of the first ratchet portion (32) of the driving member (30). a third junction (44) of the second ratchet portion (42), and driving the hub seat (10) to operate; otherwise, when the sleeve seat (20) is rotated in the reverse direction, the first ratchet portion ( 32) The inclined surface between the second joint surface (35) and the fourth joint surface (45) of the second ratchet portion (42) is relatively slipped, and cooperates between the driving member (30) and the sleeve seat (20) The relative linear displacement causes the driving member (30) and the follower (40) to be slightly disengaged from each other and the linear displacement generates a gap (S) to achieve the de-toothing action and the idling state.

With the above-mentioned members, the driving member (30) and the resetting member (50) are linearly operated in synchronization with the sleeve seat (20) to form a linear displacement of the unilateral shape, and the first and second ratchet portions are utilized ( 32) A plurality of tapered surfaces between (42) are meshed with each other, and each of the first and second ratchet portions (32) (42) is formed by a conical surface of two triangular shaped joints, which can reduce contact area and is effective The wear is reduced, the driving member (30) is linearly displaced relative to the follower (40) to be slightly disengaged from the meshing state and a gap (S) is generated, so that the meshing action and the tooth removing action are faster and smoother, and the driving is enhanced. The reset speed of the member (30) and the follower (40), thereby improving the sensitivity of the overall ratchet structure and the ratcheting benefit, and the follower (40) is firmly fixed in the hub seat (10), and the member is simple and Easy to assemble, the overall structure is indeed excellent and practical.

For a further understanding of the structural features, technical means and desired effects of the present invention, the manner of use of the present invention is described as follows: The present invention is the second fixing portion (41) of the follower (40) and the hub The first fixing portions (13) in the holes (12) of the seat (10) are fixedly coupled to each other, the retaining member (40) is fixed in the hole (12), and the sleeve (60) is sleeved on the sleeve (60). On the shaft (12), the driving member (30) and the resetting member (50) are then sleeved in the hole (21) of the sleeve seat (20), and the sleeve seat (20) and the sleeve are (60) interpeating so that the driving member (30) and the resetting member (50) are sleeved on the sleeve (60), and the first and second ratchet portions (32) (42) are engaged with each other. That is, the grouping is completed.

In the use of the present invention, as shown in the fifth to sixth figures, the first ratchet portion (32) of the driving member (30) and the second ratchet portion (42) of the follower member (40) are engaged with each other. The elastic pushing of the resetting member (50), by rotating the sleeve (20), pushing the first joint (34) and the third joint (44) to each other, and driving the hub ( 10) actuating to achieve the meshing transmission action; when rotating in the reverse direction, as shown in the seventh figure, the inclined surface is relatively slipped between the second joint surface (35) and the fourth joint surface (45), and the driving member is matched The teeth (31) of (30) are relatively linearly displaced from the sliding grooves (22) of the sleeve seat (20), so that the first joint surface (34) and the third joint surface (44) are slightly disengaged from each other and linearly displaced. A gap (S) is generated to achieve the tooth removal action, and then the spring force of the reset element (50) is pushed to reset the drive member (30), and the first and second ratchet portions (32) are 42) Engage each other.

Please refer to the eighth to tenth embodiments, which are another embodiment of the present invention, wherein the resetting member (50) can be configured as an elastic member (53). In the embodiment, the elastic member (53) is The spring is disposed between the sleeve seat (20) and the driving member (30) with an elastic member (53), and one side of the elastic member (53) is embedded in the blocking portion of the driving member (30). Between (36), by the characteristics of the resilient top support of the elastic member (53), a driving force for the driving member (30) to rotate toward the follower member (40) can also be provided.

In the ratchet structure of the present invention, the driving member (30) and the follower (40) have first and second ratchet portions (32) (42) that are in mesh with each other, and the first and second ratchet portions ( 32) Each of the concave portion (33) and the convex portion (43) disposed opposite to each other in (42) is formed in a tapered shape by a triangular and beveled surface in a radial direction, and each of the concave portions (33) and the convex portion The surface area of one side of the portion (43) is relatively small, which can reduce the contact area, so that the driving member (30) and the follower member (40) can be in a low friction state, and when rotated in the reverse direction, The driving member (30) is linearly displaced relative to the follower (40) to be slightly disengaged from the meshing state and generates a gap (S), and cooperates with the setting of the resetting member (50) to achieve the effect of resetting, so that the ratchet structure can be The meshing transmission and the tooth removal action are faster and smoother, effectively reducing the wear, thereby improving the sensitivity of the ratchet structure actuation, and improving the ratcheting transmission efficiency, and the overall structure is excellent in innovation and practicality; further, the wheel hub (10) The first and second fixing portions (13) (41) are disposed opposite to the follower (40), and are fixed to each other by the first and second fixing portions (13) (41). The follower (40) is fixed in the hole (11), and the driving member (30) can be linearly displaced in the hole (21) of the sleeve seat (20) to provide a single-sided displacement actuation effect, and the displacement is actuated. The interference is reduced, the ratcheting efficiency is improved, and the fixing between the hub seat (10) and the follower (40) can reduce the weight of the overall structure, the components are simple, and the assembly is easy and convenient.

A sleeve (60) is disposed between the hub seat (10), the driving member (30), the driven member (40) and the sleeve seat (20), and the driving member (30) and the driven member are provided ( 40) The guiding effect when linearly acting between the resetting element (50) can avoid the deflection of each component when it is actuated, so as to improve the convenience and practicality of the ratchet structure transmission benefit. The driving member (30) is provided with a blocking portion (36) away from one side of the first ratchet portion (32), and can provide a set setting function of the resetting component (50) to prevent the resetting component (50) from being generated when the resetting component (50) is activated. Deviation or prolapse, in order to stabilize the fixed position and set the convenience.

In summary, the "single-sided displacement flower hub ratchet structure" disclosed in the present invention provides a low-wear ratchet structure which is engaged with each other by a ratchet having a plurality of tapered surfaces, each of which is formed by a triangle. The junction surface is formed into a tapered shape, and the surface area of one of the joint surfaces is small to reduce the frictional resistance between the driving member (30) and the driven member (40), so that the meshing transmission and the tooth removing action are faster and Smooth, thereby improving the sensitivity of the ratchet structure actuation, effectively improving the ratcheting efficiency, and the first and second fixing portions (13) are fixedly assembled between the hub seat (10) and the driven member (40) ( 41), the follower (40) can be stably fixed in the hub seat (10) to provide a unilateral displacement actuating ratchet structure, which has simple components and convenient assembly, so that the whole industry has practical utility and innovation. Benefits, and its structure has not been seen in the publications or public use, in line with the requirements of the invention patent application, please ask the Bureau to identify the patent, as soon as possible to grant patents, to pray.

It is to be understood that the above is a specific embodiment of the present invention and the technical principles applied thereto, and the functional effects produced by the concept of the present invention are still beyond the spirit of the specification and drawings. In the meantime, it should be combined with Chen Ming within the scope of the present invention.

(10). . . Wheel hub

(11). . . hole

(12). . . Shaft

(13). . . First fixed part

(20). . . Sleeve seat

(twenty one). . . hole

(twenty two). . . Sliding slot

(30). . . Drive

(31). . . tooth

(32). . . First ratchet

(33). . . Concave

(34). . . First junction

(35). . . Second junction

(36). . . Blocking

(40). . . Follower

(41). . . tooth

(42). . . Second ratchet

(43). . . Convex

(44). . . Third junction

(45). . . Fourth junction

(50). . . Reset element

(51). . . First magnetic piece

(52). . . Second magnetic piece

(53). . . Elastic part

(60). . . casing

(S). . . gap

The first figure is a perspective view of a preferred embodiment of the present invention.

The second figure is an exploded perspective view of a preferred embodiment of the present invention.

Figure 3 is a cross-sectional view of a drive member in accordance with a preferred embodiment of the present invention.

Figure 4 is a cross-sectional view of a follower of a preferred embodiment of the present invention.

Figure 5 is a schematic cross-sectional view of a preferred embodiment of the present invention.

Figure 6 is an enlarged cross-sectional view showing a combination of a preferred embodiment of the present invention.

Figure 7 is an enlarged cross-sectional view showing a combined configuration of a de-toothed state in accordance with a preferred embodiment of the present invention.

Figure 8 is an exploded perspective view of another embodiment of the present invention.

Figure 9 is a schematic cross-sectional view showing a combination of another embodiment of the present invention.

Figure 11 is an enlarged cross-sectional view showing a combined structure of another embodiment of the present invention.

(10). . . Wheel hub

(11). . . hole

(12). . . Shaft

(13). . . First fixed part

(20). . . Sleeve seat

(twenty one). . . hole

(twenty two). . . Sliding slot

(30). . . Drive

(31). . . tooth

(32). . . First ratchet

(33). . . Concave

(34). . . First junction

(35). . . Second junction

(36). . . Blocking

(40). . . Follower

(41). . . tooth

(42). . . Second ratchet

(43). . . Convex

(44). . . Third junction

(45). . . Fourth junction

(50). . . Reset element

(51). . . First magnetic piece

(52). . . Second magnetic piece

(60). . . casing

Claims (7)

The utility model relates to a unilateral displacement flower hub ratchet structure, which comprises: a wheel hub seat, one hole is arranged on one side thereof, a shaft is arranged axially in the center of the hole, and the hole is provided in parallel with the shaft hole of the hub seat a first fixing portion; a sleeve seat having a hole on one side thereof, wherein the hole is provided with a sliding groove parallel to the shaft hole of the sleeve seat; and a driving member is an annular seat body The outer circumference is provided with a plurality of teeth corresponding to the sliding groove, and one of the side faces of the driving member is axially provided with a first ratchet portion having a tapered surface, which is formed by a triangular surface having a triangular shape in a radial direction. And the surface area of one of the junctions is smaller than the surface area of the other junction, so that the teeth of the driving member and the sliding groove are embedded with each other, and the driving member is linearly displaced in the sliding groove; An annular seat body having a second fixing portion corresponding to the first fixing portion, and a side surface of one of the followers is axially provided with one of a tapered surface that is in mesh with the first ratchet portion a second ratchet portion, the second fixing portion and the first fixing portion are assembled and fixed to each other; a reset element is disposed at the Between the hub and the drive member. The unilaterally displaced flower hub ratchet structure according to the first aspect of the invention, wherein the first fixing portion and the second fixing portion are provided with screw portions that are relatively screwed and fixed. The unilateral displacement flower hub ratchet structure according to claim 1, wherein the first ratchet portion ring is provided with a plurality of concave or convex portions having a tapered surface, each of the concave portions or convex portions being radially The direction of the first joint surface is a triangular shape, and the surface area of the first joint surface is smaller than the surface area of the second joint surface; The second ratchet portion is provided with a plurality of convex portions or recesses having a tapered surface opposite to the first ratchet portion, and each of the convex portions or the concave portion is formed by a third joint surface of the inclined surface in the radial direction and a fourth junction surface, the third and fourth junction surfaces also have a triangular shape, wherein a surface area of the third junction surface is smaller than a surface area of the fourth junction surface, and the first and second ratchet portions are mutually Engaging, the first and third joints abut each other, and the second and fourth joints abut each other. The unilateral displacement flower hub ratchet structure according to claim 1, wherein the driving member is axially extended from a side of the first ratchet portion to provide a blocking portion, so that one of the resetting elements is laterally set. Located in the barrier. The unilateral displacement flower hub ratchet structure according to the first aspect of the patent application, wherein the reset element is a magnet group having a first magnetic member and a second magnetic member, so that the first magnetic member is provided The driving member is away from one side of the first ratchet portion, and the second magnetic member is disposed in the hole of the sleeve seat, and the first and second magnetic members are disposed in the same magnetic state. The unilateral displacement flower hub ratchet structure according to the first aspect of the patent application, wherein the reset element is an elastic member. According to the unilateral displacement flower hub ratchet structure described in claim 1, the sleeve is further provided with a sleeve whose diameter is larger than the diameter of the shaft and smaller than the driving member and the driven member. The aperture of the component and the resetting component is such that the sleeve is sleeved on the shaft and located between the shaft and the driving member, the driven member and the resetting member.