One-way bearing structure

Abstract

The invention provides a one-way bearing structure which is applied between an input piece and an output piece, the one-way bearing is provided with a plastic mounting seat, a plurality of rollers and a metal conduction seat, the plastic mounting seat is provided with a plurality of mounting grooves which are arranged at equal intervals and are through in the radial direction, the rollers are accommodated in the opposite mounting grooves, and the metal conduction seat is arranged in the mounting grooves. And a plurality of conduction inclined surfaces corresponding to the mounting grooves are formed on the peripheral surface of the metal conduction seat corresponding to the plastic mounting seat, so that the rollers on the plastic mounting seat can selectively press the metal conduction seat by utilizing the opposite conduction inclined surfaces to generate a one-way driving effect. Therefore, the weight of the one-way bearing can be reduced by utilizing the plastic mounting seat which can be molded, and the effects of light weight, cost reduction and easiness in processing can be achieved under the condition that the strength of transmission power is not influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of bearings, and more particularly to a lightweight one-way bearing structure, which can effectively reduce the weight of the one-way bearing without affecting the strength of power transmission, and further has the effects of being easy to process and reducing manufacturing costs. Background Art

[0002] In recent years, in the development of bicycles, with the progress of vehicle technology and road surface improvement, the performance and quality have been continuously improved. For some racing or long-distance sports bikes, in order to reduce the load on the rider, not only the main large components such as the frame and wheels need to be lightened, but also the related small parts have started to move towards lightweight. Generally, in addition to reducing the size and thickness, changing the material is also a common option for lightweight technology.

[0003] Take a common one-way bearing as an example, as Figure 1 、 Figure 2 shown, the one-way bearing 10 is applied between an input member 20 and an output member 30, and the one-way bearing 10 is used to selectively drive the output member 30 unidirectionally by the input member 20. The one-way bearing 10 has a conduction ring seat 11, and a plurality of equally spaced receiving grooves 12 are formed on the peripheral edge of the conduction ring seat 11 corresponding to the input member 20. Both ends of the inner bottom surface of the receiving grooves 12 respectively have a shallow groove portion 121 and a deep groove portion 122. A roller 15 is respectively arranged in the receiving grooves 12. Furthermore, an elastic member 16 is respectively arranged between the roller 15 and the relative deep groove portion 122 in the receiving grooves 12, so that the rollers 15 can be forced to the position of the shallow groove portions 121 most quickly to generate unidirectional driving, and a plurality of equally spaced semi-circular rod grooves 18 are formed on the outer edge of the conduction ring seat 11 to cooperate with a plurality of positioning pins 19 to generate a limiting effect on the output member 30.

[0004] The aforementioned existing one-way bearing 10 is a single-piece structure. In order to avoid affecting the resistance during conduction, the conduction ring seat 11 needs to be processed for assembling the rollers 15, and the rollers 15 need to directly contact the input member 20 to generate a conduction force to the output member 30. In this way, the strength of the conduction ring seat 11 of the one-way bearing 10 to bear the resistance will be increased. In order to avoid its fracture or rupture, the thickness of the conduction ring seat 11 needs to be thickened, which inadvertently increases the overall weight and processing difficulty, deviating from the lightweight design trend. Furthermore, the one-way bearing 10 uses the small-diameter semi-circular rod grooves 18 and the positioning pins 19 to generate a limiting effect on the output member 30, but it is difficult to continuously bear the conduction output force, and the positioning pins 19 may break or the conduction ring seat 11 may rupture under long-term operation, affecting its service life.

[0005] In other words, due to the imperfect structural design of existing one-way bearings, there are problems such as difficulty in reducing weight and insufficient bearing capacity. Therefore, further improvement is still needed. How to solve the above problems is what the industry and users expect, and it is also what this invention intends to explore.

[0006] In view of the above-mentioned deficiencies, drawbacks and requirements, the inventor of this case believes that correction is necessary. Therefore, with years of experience in related technologies and product design and manufacturing, adhering to excellent design concepts, the inventor conducts research and creation on the above-mentioned deficiencies. After continuous efforts, a one-way bearing structure is finally successfully developed to overcome the troubles and inconveniences derived from the above-mentioned problems in the existing ones. Summary of the Invention

[0007] Therefore, the main object of the present invention is to provide a one-way bearing structure, which can reduce weight by changing materials, increase the area of resistance strength, and is not easily broken or cracked, effectively extending its service life.

[0008] Furthermore, the secondary main object of the present invention is to provide a one-way bearing structure, which can effectively achieve the purpose of light weight and small footprint without affecting the strength of power transmission, and further has the effects of being easy to process and reducing manufacturing costs.

[0009] Based on this, the present invention mainly realizes the above-mentioned objects and effects through the following technical means. The present invention provides a one-way bearing structure, which is applied between an input member and an output member, so that the input member can selectively drive the output member to act unidirectionally toward a driving side. The characteristics are that the one-way bearing includes:

[0010] A plastic mounting seat, which is injection-molded from plastic material. The plastic mounting seat has a plurality of equidistant and radially penetrating mounting grooves. A plurality of the mounting grooves respectively accommodate a roller, and a plurality of elastic members are respectively provided on one side of the plurality of rollers different from the driving side in the plurality of mounting grooves. The aforementioned input member is arranged on one side of the plastic mounting seat different from the following metal conduction seat, and the input member can contact and drive the plurality of rollers in the plastic mounting seat;

[0011] A metal conduction seat, which is made of metal material with resistance. The metal conduction seat is arranged on one side of the plastic mounting seat different from the input member. The metal conduction seat forms a plurality of conduction inclined surfaces corresponding to the plurality of mounting grooves on the peripheral surface corresponding to the plastic mounting seat. A deep groove portion is formed at one end corresponding to the side different from the driving side at both ends of the conduction inclined surface, and a shallow groove portion is formed at one end corresponding to the driving side.

[0012] In the one-way bearing structure described above: the metal conduction seat is arranged on the periphery of the plastic mounting seat, the input member is arranged on the inner edge of the plastic mounting seat, and the output member is arranged on the outer edge of the metal conduction seat.

[0013] The one-way bearing structure, wherein: the inner wall surfaces on both sides of the plurality of mounting grooves of the plastic mounting seat are respectively formed with arc concave edges corresponding to the peripheries of the plurality of rollers to increase the working space of the plurality of rollers.

[0014] The one-way bearing structure, wherein: the inner wall surface on both sides of the plurality of mounting grooves of the plastic mounting seat corresponding to the inner wall surface on the side not for the plurality of rollers to tighten is formed with a step groove for accommodating the plurality of elastic members respectively.

[0015] The one-way bearing structure, wherein: the inner wall surfaces on both sides of the plurality of mounting grooves of the plastic mounting seat are respectively opposite to one side of the metal conductive seat to form a first detent arc surface, so as to combine and limit the plastic mounting seat and the metal conductive seat.

[0016] The one-way bearing structure, wherein: a second detent arc surface corresponding to the first detent arc surface of the plastic mounting seat is formed between the plurality of shallow groove portions and the plurality of deep groove portions of the adjacent conductive inclined surfaces of the metal conductive seat, so as to combine and limit the metal conductive seat and the plastic mounting seat.

[0017] The one-way bearing structure, wherein: the metal conductive seat is formed with at least one first clamping surface corresponding to the periphery of the output member, and the opposite periphery of the output member is formed with a second clamping surface corresponding to the aforementioned first clamping surface, so as to increase the resistance area between the metal conductive seat and the output member.

[0018] By this, the one-way bearing structure of the present invention can utilize the plastic mounting seat to be molded with a plurality of mounting grooves that are equidistant and radially penetrated, and the rollers are respectively accommodated in the mounting grooves, and the peripheral surface of the metal conductive seat corresponding to the plastic mounting seat is formed with a plurality of conductive inclined surfaces corresponding to the mounting grooves, so that the rollers on the plastic mounting seat can utilize the relative metal conductive seat to produce a one-way driving effect, and the plastic mounting seat can be used to use lightweight plastic materials to reduce weight, and the metal conductive seat can be used to increase the area of ​​resistance strength without being easily broken or cracked, effectively extending its service life, and thus can effectively achieve the purpose of lightweight without affecting the strength of the conductive power, and further has the effect of easy processing and reduced manufacturing cost, greatly improving its practicality, increasing its added value, and realizing its economic benefits.

[0019] In order to further understand the composition, features and other purposes of the present invention, the preferred embodiments of the present invention are listed below and described in detail with reference to the accompanying drawings, so that those skilled in the art can implement them. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side cross-sectional schematic diagram of an existing one-way bearing.

[0021] Figure 2 It is a three-dimensional exploded view of an existing one-way bearing, for illustrating the states of its main components and their relative relationships.

[0022] Figure 3 It is a three-dimensional external view of the one-way bearing structure of the present invention.

[0023] Figure 4 It is a three-dimensional exploded view of the one-way bearing structure of the present invention, for illustrating the states of its main components and their relative relationships.

[0024] Figure 5 It is a side sectional view of the one-way bearing structure of the present invention, for illustrating its assembled state.

[0025] Figure 6 It is a side sectional view of the one-way bearing structure of the present invention during actual operation.

[0026] Description of reference numerals: 10 - one-way bearing; 11 - conduction ring seat; 12 - receiving groove; 121 - shallow groove part; 122 - deep groove part; 15 - roller; 16 - elastic member; 18 - semi-circular rod groove; 19 - positioning pin; 20 - input member; 30 - output member; 50 - one-way bearing; 60 - plastic mounting seat; 61 - mounting groove; 62 - arc concave edge; 63 - stepped groove; 64 - first braking arc surface; 65 - roller; 66 - elastic member; 70 - metal conduction seat; 71 - conduction inclined surface; 72 - deep groove part; 73 - shallow groove part; 74 - second braking arc surface; 75 - first clamping surface; 80 - input member; 90 - output member; 95 - second clamping surface. Detailed Description of the Invention

[0027] The present invention provides a one-way bearing structure. In the specific embodiments and components of the present invention illustrated with the accompanying drawings, all references to front and back, left and right, top and bottom, upper and lower, and horizontal and vertical are only for convenience of description, and do not limit the present invention, nor limit its components to any position or spatial direction. The dimensions specified in the drawings and the specification can be changed according to the design and requirements of the present invention without departing from the scope of the claims of the present invention.

[0028] As Figure 3 、 Figure 4 、 Figure 5 shown, the one-way bearing 50 of the present invention is applied between an input member 80 and an output member 90. The one-way bearing 50 is composed of a plastic mounting seat 60, a plurality of rollers 65, and a metal conduction seat 70, for the input member 80 to selectively actuate the output member 90 to perform one-way actuation towards a driving side;

[0029] And the detailed constitution of the one-way bearing 50 is asFigure 3 , Figure 4 and Figure 5 As disclosed in Figure 3 , Figure 4 and Figure 5 , the plastic mounting base 60 is injection molded from a plastic material. The plastic mounting base 60 has a plurality of equally spaced and radially penetrating mounting grooves 61. The mounting grooves 61 can accommodate the aforementioned rollers 65. On both sides of the inner wall surfaces of the mounting grooves 61, a pair of arc-shaped concave edges 62 corresponding to the peripheries of the rollers 65 are respectively formed to increase the working space of the rollers 65. On the inner wall surfaces of both sides of the mounting grooves 61, on the inner wall surface corresponding to the side where the non-compression action of the rollers 65 occurs, a stepped groove 63 is formed to respectively accommodate an elastic member 66 that can support the outer edge of the relative roller 65. On the inner wall surfaces of both sides of the mounting grooves 61 of the plastic mounting base 60, on the side opposite to the metal conduction base 70, a first braking arc surface 64 is formed to bind and limit the plastic mounting base 60 and the metal conduction base 70. The aforementioned input member 80 is disposed on the side of the plastic mounting base 60 different from the metal conduction base 70, so that the input member 80 can contact and actuate the rollers 65 in the plastic mounting base 60;

[0030] The metal conduction base 70 is made of a metal material with resistance, and the metal conduction base 70 can be disposed on the periphery or the inner periphery of the plastic mounting base 60. In the present invention, taking the metal conduction base 70 being disposed on the periphery of the plastic mounting base 60 as the main embodiment, and the input member 80 being disposed on the inner edge of the plastic mounting base 60. On the surface periphery of the metal conduction base 70 corresponding to the plastic mounting base 60, a plurality of conduction inclined surfaces 71 corresponding to the mounting grooves 61 are formed. As shown in Figure 5 , at one end of each of the conduction inclined surfaces 71 corresponding to the end different from the driving side, a deep groove portion 72 is formed, and at one end corresponding to the driving side, a shallow groove portion 73 is formed. When the input member 80 actuates the rollers 65 to move to the shallow groove portions 73 of the conduction inclined surfaces 71, a pressing and driving effect can be generated [as shown in Figure 6 ]. On the contrary, when the input member 80 actuates the rollers 65 to move to the deep groove portions 72 of the conduction inclined surfaces 71, an idling effect can be generated [as shown in Figure 5 ]. Between the shallow groove portions 73 and the deep groove portions 72 of the adjacent conduction inclined surfaces 71 of the metal conduction base 70, a second braking arc surface 74 corresponding to the first braking arc surface 64 of the plastic mounting base 60 is respectively formed to bind and limit the metal conduction base 70 and the plastic mounting base 60. Furthermore, on the periphery of the metal conduction base 70 corresponding to the output member 90, at least one first clamping surface 75 is formed, and on the relative periphery of the output member 90, a second clamping surface 95 corresponding to the first clamping surface 75 is formed, so that the metal conduction base 70 can synchronously drive the output member 90, and the resistance area between the metal conduction base 70 and the output member 90 can be increased;

[0031] ​​​​​​Thus, the plastic mounting seat 60 can selectively and unidirectionally press the metal conduction seat 70 by means of these rollers 65, enabling the input member 80 to generate a unidirectional driving effect relative to the output member 90 through the one-way bearing 50, thereby forming a lightweight and non-fragile one-way bearing structure.

[0032] As for the actual operation of the one-way bearing structure of the present invention, it is as follows Figure 5 , Figure 6 shown. When the input member 80 rotates in a direction different from the driving side (such as not moving or clockwise), the rollers 65 on the plastic mounting seat 60 of the one-way bearing 50 are correspondingly located on one side of the deep groove portions 72 of the conduction inclined surfaces 71 of the metal conduction seat 70, so that the plastic mounting seat 60 will not drive the metal conduction seat 70 through these rollers 65, resulting in an idling state between the input member 80 and the output member 90;

[0033] When the input member 80 rotates towards the driving side (such as counterclockwise), it can synchronously drive the rollers 65 on the plastic mounting seat 60, causing the rollers 65 to be actuated to the shallow groove portions 73 opposite to the conduction inclined surfaces 71 of the metal conduction seat 70, so that the input member 80 and the conduction inclined surfaces 71 of the metal conduction seat 70 sandwich the rollers 65 relatively, enabling the input member 80 to unidirectionally drive the output member 90 through the one-way bearing 50.

[0034] The above-described embodiments are only the preferred embodiments of the present invention and should not be used to limit the protection scope of the present invention. Any meaningless modifications or polishings made on the main design concept and spirit of the present invention, as long as the technical problems solved are still the same as those of the present invention, should be included within the protection scope of the present invention.

[0035] Through the foregoing design and description, the one-way bearing structure of the present invention can form a plurality of equidistant and radially penetrating mounting grooves 61 on the plastic mounting seat 60, and rollers 65 are respectively accommodated in these mounting grooves 61. Moreover, the metal conduction seat 70 is formed with a plurality of conduction inclined surfaces 71 corresponding to the mounting grooves 61 on the peripheral surface of the plastic mounting seat 60, enabling the rollers 65 on the plastic mounting seat 60 to generate a unidirectional driving effect by means of the relative metal conduction seat 70. The plastic mounting seat 60 can use plastic materials to reduce weight, and the resistance strength area can be increased through the first clamping surfaces 75 of the metal conduction seat 70, making it not easy to break or rupture, effectively extending its service life. Furthermore, it can effectively achieve the purpose of lightweight without affecting the strength of power conduction, and further has the effects of being easy to process and reducing manufacturing costs, greatly improving its practicality.

Claims

1. A one-way bearing structure is applied between an input member and an output member, enabling the input member to selectively drive the output member to act unidirectionally towards a driving side. It is characterized in that, The one-way bearing includes: A plastic mounting seat, which is injection molded from plastic material. The plastic mounting seat has a plurality of equally spaced mounting grooves that penetrate radially. A plurality of rollers are respectively accommodated in the plurality of mounting grooves, and a plurality of elastic members are respectively provided on one side of the plurality of rollers different from the driving side. The aforementioned input member is provided on one side of the plastic mounting seat different from the following metal conduction seat, and the input member can contact and drive the plurality of rollers in the plastic mounting seat; A metal conduction seat, which is made of a metal material with resistance. The metal conduction seat is provided on one side of the plastic mounting seat different from the input member. The metal conduction seat forms a plurality of conduction inclined surfaces corresponding to the plurality of mounting grooves on the peripheral surface of the plastic mounting seat. A deep groove portion is formed at one end corresponding to the non-driving side of the two ends of the conduction inclined surface, and a shallow groove portion is formed at one end corresponding to the driving side.

2. The one-way bearing structure according to claim 1, wherein: The metal conduction seat is provided on the periphery of the plastic mounting seat, the input member is provided on the inner edge of the plastic mounting seat, and the output member is provided on the outer edge of the metal conduction seat.

3. The one-way bearing structure according to claim 1, wherein: Arc concave edges corresponding to the peripheries of the plurality of rollers are respectively formed on the opposite inner wall surfaces on both sides of the plurality of mounting grooves of the plastic mounting seat to increase the working space of the plurality of rollers.

4. The one-way bearing structure according to claim 1 or 3, characterized in that: A step groove is formed on the inner wall surface on one side of the plurality of mounting grooves of the plastic mounting seat corresponding to the side where the plurality of rollers are not pressed, for respectively accommodating a plurality of opposite elastic members.

5. The one-way bearing structure according to claim 1, wherein: First braking arc surfaces are respectively formed on the opposite inner wall surfaces on both sides of the plurality of mounting grooves of the plastic mounting seat on one side corresponding to the metal conduction seat, so as to combine and limit the plastic mounting seat and the metal conduction seat.

6. The one-way bearing structure according to claim 5, wherein: Second braking arc surfaces corresponding to the first braking arc surfaces of the plastic mounting seat are respectively formed between the plurality of shallow groove portions and the plurality of deep groove portions of the adjacent conduction inclined surfaces of the metal conduction seat, so as to combine and limit the metal conduction seat and the plastic mounting seat.

7. The one-way bearing structure according to claim 1 or 5 or 6, characterized in that: At least one first clamping surface is formed on the peripheral edge of the metal conduction seat corresponding to the output member, and a second clamping surface corresponding to the aforementioned first clamping surface is formed on the opposite peripheral edge of the output member to increase the resistance area between the metal conduction seat and the output member.

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