TW201938405A - Hub ratchet driving structure comprising a hub which is provided with an axle penetrating therethrough with a plurality of bearings being arranged as intermediate therebetween - Google Patents

Abstract

A hub ratchet driving structure comprises an axle that is arranged to penetrate through and coupled to a hub through being intermediated with a plurality of bearings. The axle is arranged to penetrate through a ratchet wheel through being intermediated with a plurality of bearings. A large-diameter stepped hole is formed in one side of the hub. A baffle is arranged in the large-diameter stepped hole, and then, a one-way groove ring is screwed in to fix. The ratchet wheel is provided, at a corresponding side, with a small-diameter stepped shaft that is assembled into the large-diameter stepped hole. The present invention is primarily such that a plurality of transverse fixing grooves is formed in a peripheral surface of the small-diameter stepped shaft of the ratchet wheel to transversely receive rears ends of non-return pawls. First limiting grooves and second limiting grooves are respectively formed in sides of the ratchet wheel and front ends of the non-return pawls that are opposite to each other, so as to limit positions of two ends of springs and the non-return pawls. The non-return pawls are provided with a pawl operation angle groove for variation of operation angle thereof. The ratchet wheel is provided with an inclined surface covering type retaining groove on which a fixing baffle set in an arc form is assembled to reduce constraint to displacement of the pawl that a contact area is applied thereto.

Description

Flower hub ratchet drive structure

The invention provides a technical field of a flower hub, in particular, a technology for providing a flower wheel ratchet drive structure. The ratchet wheel and the anti-reverse percussion are divided into first and second limit grooves to limit the spring and the anti-reverse percussion. In addition, the anti-reverse percussion force is provided with an angle groove for the anti-reverse percussion force, and the ratchet wheel has an inclined surface fixing groove so that the fixed baffle reduces the contact area in an arc shape to limit the displacement of the percussion force.

Press, refer to the new patent case No. 101200118 of the conventional application "Limited Dust-proof Structure of Hubble Ratchet Elastic Check Key", which also uses the elastic force of the elastic sheet to drive the check key to stop on the hub tooth to achieve the stop the goal of. It is different from the ratchet wheel and the anti-reverse percussion device of the present invention to set the first and second limit grooves to limit the spring and the anti-reverse percussion device, and the present invention has an anti-reverse percussion device to change the angle of the groove. In angle, the present invention has a bevel-covered card groove, which is fixed into a fixed baffle to form an arc shape, which can reduce the contact area to limit the displacement of the sub-actuator, while the conventional oil seal has a large area of contact. The two are significantly different.

Moreover, referring to the first figure, it is another invention application patent No. 104137356 "Dense tooth type flower hub ratchet combination structure" invention patent A cross-sectional view of the case, in which the pawl member 12 in the flower hub 11 is combined with the ratchet wheel 13, and the pawl member 12 uses the elastic force of the elastic piece 14 to achieve the purpose of stopping the interlocking ring 15 of the flower hub 11. The elastic piece 14 and the ratchet wheel and the anti-reverse percussion device of the present invention are divided into first and second limiting grooves to limit the spring and the anti-reverse percussion device are different, and the present invention has an anti-reverse percussion actuator angle groove. Changing the actuating angle, the present invention has a bevel-covered card groove, which is incorporated into a fixed baffle to form an arc shape to reduce the contact area to limit the displacement of the pressing sub, which is also lacking in the previous case.

In addition, it is known that the spring-type pawl fixing structure of the hub of a bicycle is a single-point fixing method. Thus, the pawl is easy to be displaced in operation and is easy to fall during assembly. The non-reversing striker of the present invention is laterally fixed into a lateral fixing groove of the ratchet, which can avoid the problems of falling and spring flying during assembly. The operating angle groove on the non-return striker can also cooperate with the fixed groove angle of the ratchet. To change the actuating angle during the actuation, the spring limit action mode is mainly to fix the position of the anti-reverse striker. The spring also makes it easier to control the elastic coefficient to improve the anti-reverse striker when the bicycle hub is running. The frictional resistance coefficient between the unidirectional groove rings is also easier to control the synchronization between the percussion and the percussion.

Therefore, in view of the problems existing in the above-mentioned conventional structure, how to develop an innovative structure that is more ideal and practical is eagerly awaited by consumers, and it is also the goal and direction for relevant industry players to strive to develop breakthroughs.

In view of this, the inventor has been engaged in the manufacturing development and design of related products for many years. In view of the above goals, detailed design and careful evaluation After evaluation, the present invention is indeed practical.

The main purpose of the present invention is to provide a flower hub ratchet drive structure, in which the ratchet and the anti-reverse striker are separated into first and second limit grooves to restrict the spring and the anti-reverse striker from being different. The actuating angle of the counter-actuator moves the groove to change the actuating angle. The present invention has a bevel-covered card groove, which is combined with a fixed baffle to form an arc to reduce the contact area to limit the displacement of the percussion force.

In order to achieve the above object, the present invention provides a flower hub ratchet drive structure, comprising: a shaft center through a number of bearings to pass through a set of flower hubs, a shaft center through a number of bearings to pass through a set of ratchets, Large-diameter step holes, a large-diameter step hole must be assembled into a baffle and then screwed to fix the one-way groove ring, and a small-diameter step shaft on the corresponding side of the ratchet can be assembled into a large-diameter step hole; mainly: the ratchet small-diameter step shaft The lateral surface is provided with a number of lateral fixing grooves for laterally inserting the end of the backstopper. The ratchet wheel and the front end of the backstopper are respectively provided with first and second limiting grooves to limit the ends of the spring and the backstopper. Position, and the anti-reverse striker is set with the action angle of the anti-reverse striker. The groove can change its operating angle. The ratchet is equipped with a bevel-covered card groove to reduce the impact of the fixed stopper in an arc shape. Forced Sublocator.

Regarding the technology, means and effects adopted by the present invention, a preferred embodiment will be described in detail with reference to the drawings. It is believed that the above-mentioned objects, structures, and characteristics of the present invention can be understood thoroughly and in detail. .

[Learning]

11‧‧‧ flower hub

12‧‧‧ Pawl pieces

13‧‧‧Ratchet

14‧‧‧ shrapnel

15‧‧‧ Linked ring

〔this invention〕

20‧‧‧Axis

21‧‧‧The first bearing

22‧‧‧Second bearing

30‧‧‧Flower hub

31‧‧‧large diameter step hole

32‧‧‧ bezel

33‧‧‧One-way groove ring

331‧‧‧One-way groove

40‧‧‧ Ratchet

41‧‧‧Small axis step axis

42‧‧‧Horizontal fixing groove

43‧‧‧ the first limit slot

44‧‧‧Slope Covered Groove

50‧‧‧ Stop counterattack

51‧‧‧ end

52‧‧‧Front

53‧‧‧Second limit slot

54‧‧‧Angle groove

60‧‧‧Spring

70‧‧‧Fixed

θ‧‧‧ clearance

The first figure is a cross-sectional view of the dense-toothed hub-and-ratchet combination structure of the previous case.

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

The third diagram is a left side perspective exploded view of an embodiment of the present invention.

The fourth figure is an exploded perspective view in the right direction of an embodiment of the present invention.

The fifth figure is a radial plane sectional view of an embodiment of the present invention.

The sixth figure is an exploded perspective view of the right side of another embodiment of the present invention.

The seventh figure is an axial plan sectional view of an embodiment of the present invention.

The present invention provides a designer of a flower hub ratchet drive structure.

In order to allow your reviewers to further understand and understand the purpose, features, and effects of the present invention, the detailed description of the embodiments and drawings is as follows: Refer to the second to fifth figures, the present invention provides a flower hub The ratchet drive structure includes: a shaft center 20 is passed through a set of hubs 30 through a first bearing 21 on one side, and the aforementioned shaft center 20 is passed through a set of ratchet wheels 40 through a second bearing 22 A large-diameter step hole 31 is provided on one side of the flower hub. The large-diameter step hole 31 must be combined with a baffle 32 and then screwed to fix a one-way groove ring 33. The ratchet wheel 40 is provided on the side of the flower hub 30. The small-diameter step axis 41 must be combined into the aforementioned large diameter Step hole 31; it is mainly because the ratchet wheel 40 has a small-diameter step shaft 41 on the peripheral surface of which is provided with a number of laterally fixed grooves 42 for lateral insertion of a number of anti-reverse strikers 50 at the end 51 and a number of springs 60. The aforementioned ratchet 40 and the aforementioned stopper The front end 52 of the counterattack 50 is provided with first and second limiting grooves 43 and 53 respectively on the opposite sides to restrict the two ends of the spring 60, and the spring 60 limits the position of the counterstopper 50 to avoid the counterstopper The pusher 50 is shifted, and the surface of the anti-reverse striker 50 is provided with an anti-reverse striker actuating angle groove 54 of a set depth, which can change the operating angle of the aforementioned anti-reverse striker 50. A fixed stopper 70, The ratchet wheel 40 is provided with a bevel-covered card groove 44 so that the fixed blocking piece 70 assembled forms an arc-shaped stop for the anti-reverse striker 50, and the contact area can be reduced to limit the displacement of the anti-reverse striker 50. .

Referring to FIG. 6, for the flower-hub ratchet drive structure, the fixed stopper 70 may be a plastic steel fixed stopper.

Referring to the third and fifth figures, for the flower-hub ratchet drive structure, the second limiting groove 53 may be a tapered groove that gradually expands from the inside to the outside.

Referring to the third, fourth, and fifth figures, the non-reversing striker 50 is fixed laterally into the ratchet wheel 40 and the horizontally fixing groove 42, which can avoid the problem of falling and spring 60 flying during assembly. The non-return striker acts The angle groove 54 can also cooperate with the angle of the one-way groove 331 of the one-way groove ring 22 to change the operating angle during the operation. The operation mode of the spring 60 is mainly to fix the position of the anti-reverse striker 50. The action of the spring 60 also makes it easier to control the spring force coefficient to improve the wear between the anti-reverse striker 50 and the one-way groove ring 33 when the bicycle hub is running. The friction resistance coefficient also makes it easier to control the synchronization between the anti-reverse striker 50 and the anti-reverse striker 50.

Referring to the fourth and fifth figures, the flower hub ratchet drive structure, in which the unidirectional groove ring 33 is provided with a plurality of unidirectional grooves 331, and the anti-reverse striker actuating angle groove 54 can also cooperate with the aforementioned The angle of the unidirectional groove 331 of the unidirectional groove ring 33 changes the operating angle during the operation.

Referring to the sixth and seventh figures, the fixed baffle 70 is a fixing device that reduces the displacement of the anti-reverse striker 50 during operation. The ratchet wheel 40 is designed with a bevel-covered card groove 44 and the fixed baffle 70 is embedded in the inclined bread. The cover card groove 44 will show an arc shape to reduce the area of direct contact with the anti-reverse striker 50. There is a small gap or gap θ between the fixed baffle 70 and the anti-reverse striker 50 to reduce the resistance of direct friction. The coefficient, because the distance or the gap θ is small, can also effectively limit the displacement of the backstopping striker 50.

From the above, it can be known that the flower hub ratchet drive structure of the present invention is indeed the first in the industry to meet the novelty requirements of the invention patent, and its comprehensive innovative design meets the progressive requirements of the invention patent, and its ratchet and stop The counteracting force is divided into first and second limit grooves to limit the spring and the counterforcer are different. The invention has the action angle of the action force of the counterforcer to change the operating angle, and the invention has a bevel coating. Type card groove, which is fixed in the form of a fixed baffle to reduce the contact area and limit the displacement of the impeller, which meets the requirements of better industrial utilization.

The foregoing is directed to the preferred embodiments of the present invention as techniques of the present invention. The technical features are specifically explained; however, those skilled in the art can make changes and modifications to the present invention without departing from the spirit and principles of the present invention, and these changes and modifications should be covered by the following patent application scope Within the defined scope.

In summary, the present invention provides a flower-hub ratchet drive structure, which has indeed achieved all the objectives of the present invention. In addition, the space type of the combined structure has not been seen in similar products, and has not been disclosed before the application. It has complied with the patent law. According to the provisions, the application was filed in accordance with the law.

Claims (4)

A flower hub ratchet drive structure includes: a shaft center penetrates a group of flower hubs through a first number of bearings interposed on one side, and the shaft center passes through a group of another bearings through a second number of bearings interposed on the other side. A large-diameter step hole is set on the side. The large-diameter step hole must be combined with a baffle and then screwed to fix a one-way groove ring. A small-diameter step shaft on the side of the ratchet corresponding to the flower hub can be incorporated into the large-diameter step. The hole is characterized in that: a number of laterally fixed grooves are provided on the peripheral surface of the ratchet small-diameter step shaft so as to laterally insert the ends of the anti-reverse striker; There are first and second limiting grooves to limit the two ends of the spring, and the spring restricts the position of the anti-reverse striker to avoid the displacement of the anti-reverse striker, and the surface of the anti-reverse striker is provided with a set depth The operating angle groove of the non-returning percussion force must change the operating angle of the non-returning percussion force; a fixed baffle, and the ratchet is provided with a bevel-wrapped card groove to form the fixed baffle into an arc shape. Stop the aforementioned anti-reverse striker, you must reduce the limit of contact area Reverse punch displacement were forced child. According to the flower hub ratchet drive structure described in item 1 of the scope of the patent application, the aforementioned fixed stopper may be a plastic steel sheet fixed stopper. According to the flower hub ratchet drive structure described in item 1 of the scope of patent application, the aforementioned second limiting groove may be a tapered groove that gradually expands from the inside to the outside. According to the flower hub ratchet drive structure described in item 1 of the scope of the patent application, wherein the unidirectional groove ring is provided with a plurality of unidirectional grooves, and the anti-reverse striker acts The angle groove can also be adjusted with the one-way groove angle of the one-way groove ring to change the operating angle during operation.