One-way bearing structure

Abstract

The utility model 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 pin 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 pin rollers are accommodated in the opposite mounting grooves, and the metal conduction seat is connected with the pin rollers. 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] This utility model relates to the technical field of bearings, specifically 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 advantages of easy processing and reduced manufacturing costs. Background Technology

[0002] In recent years, with the advancement of vehicle technology and road improvements, the performance and quality of bicycles have been continuously improved. In order to reduce the load on riders, some racing or long-distance cycling bicycles have not only reduced the weight of major components such as frames and wheels, but also started to make related small parts lighter. In addition to shrinking and thinning, changing materials is also a common choice for lightweighting technology.

[0003] Taking a common one-way bearing as an example, such as Figure 1 , Figure 2 As shown, the one-way bearing 10 is applied between an input component 20 and an output component 30 to enable the input component 20 to selectively drive the output component 30 in one direction. The one-way bearing 10 has a transmission ring seat 11, and the transmission ring seat 11 has a plurality of equidistant receiving grooves 12 formed on the periphery of the input component 20. The bottom surfaces of the receiving grooves 12 have a shallow groove portion 121 and a deep groove portion 122 at their respective ends. A roller 15 is provided in each of the receiving grooves 12. Furthermore, an elastic member 16 is provided between the roller 15 and the deep groove portion 122 in each of the receiving grooves 12, so that the roller 15 can be held in the position of the shallow groove portion 121 at the fastest speed to generate one-way drive. The outer edge of the transmission ring seat 11 has a plurality of equidistant semi-circular rod grooves 18 to cooperate with a plurality of positioning pins 19 to restrict the output component 30.

[0004] The aforementioned existing one-way bearing 10 is a single-piece structure. In order to avoid affecting the resistance during transmission, it needs to be machined with the transmission ring seat 11 to assemble the rollers 15. The rollers 15 need to directly contact the input component 20 to transmit force to the output component 30. This will increase the strength of the transmission ring seat 11 of the one-way bearing 10 to withstand the force. In order to avoid its breakage or cracking, the thickness of the transmission ring seat 11 needs to be increased, which will increase the overall weight and processing difficulty, causing it to deviate from the trend of lightweight design. Furthermore, the one-way bearing 10 uses the small-diameter semi-circular grooves 18 and the positioning pins 19 to restrict the output component 30. However, it is difficult to continuously withstand the transmission output force. Long-term operation may cause the positioning pins 19 to break or the transmission ring seat 11 to crack, thus affecting its service life.

[0005] In other words, existing one-way bearings have problems such as difficulty in reducing weight and insufficient load-bearing capacity due to imperfect structural design. Therefore, further improvements are still needed. How to solve the aforementioned problems is what the industry and users expect, and it is also what this utility model aims to explore.

[0006] In view of the aforementioned shortcomings and needs, the inventor of this case believed that it was necessary to make corrections. Therefore, based on years of experience in related technologies and product design and manufacturing, and adhering to the concept of excellent design, the inventor researched and created a one-way bearing structure after continuous efforts, thereby overcoming the troubles and inconveniences caused by the aforementioned problems. Utility Model Content

[0007] Therefore, the main purpose of this utility model is to provide a one-way bearing structure that can reduce weight by changing the material and increase the area of ​​resistance to force, making it less prone to breakage or cracking and effectively extending its service life.

[0008] Furthermore, a secondary objective of this utility model is to provide a one-way bearing structure that can effectively achieve lightweight and small footprint without affecting the strength of power transmission, and further has the advantages of easy processing and reduced manufacturing costs.

[0009] Based on this, the present invention mainly achieves the aforementioned objectives and effects through the following technical means: the present invention provides a one-way bearing structure, which is applied between an input component and an output component, allowing the input component to selectively drive the output component to move unidirectionally towards a driving side. The one-way bearing is characterized by comprising:

[0010] A plastic mounting base is injection molded from plastic material. The plastic mounting base has a plurality of equidistant and radially penetrating mounting grooves, wherein each of the plurality of mounting grooves accommodates a roller, and each of the plurality of mounting grooves has an elastic member on the side of the plurality of rollers opposite to the drive side. The aforementioned input member is located on the side of the plastic mounting base opposite to the metal conduction seat described later, and the input member can contact and drive the plurality of rollers in the plastic mounting base.

[0011] A metal conductive seat is made of a resistant metal material. The metal conductive seat is located on the side of the plastic mounting base opposite to the input component. The metal conductive seat has a plurality of conductive inclined surfaces corresponding to the plurality of mounting grooves formed on the periphery of the surface of the plastic mounting base. A deep groove is formed at one end of the conductive inclined surface opposite to the drive side, and a shallow groove is formed at the other end corresponding to the drive side.

[0012] The one-way bearing structure, wherein: the metal conductive seat is located on the periphery of the plastic mounting seat, the input component is located on the inner edge of the plastic mounting seat, and the output component is located on the outer edge of the metal conductive seat.

[0013] The one-way bearing structure wherein: the inner wall surfaces of the plurality of mounting grooves on both sides of the plastic mounting base are respectively formed with arc-shaped concave edges corresponding to the periphery of the plurality of rollers, so as 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 base, corresponding to the side of the non-plastic roller pressing action, forms a stepped groove for respectively accommodating the opposite plurality of elastic elements.

[0015] In the aforementioned one-way bearing structure, the inner wall surfaces on both sides of the plurality of mounting slots of the plastic mounting base are respectively formed with a first braking arc surface opposite to one side of the metal conductive base, thereby combining and limiting the plastic mounting base and the metal conductive base.

[0016] The one-way bearing structure wherein: between the plurality of shallow grooves and the plurality of deep grooves of the adjacent conductive slope of the metal conductive seat, a second braking arc surface corresponding to the first braking arc surface of the plastic mounting seat is formed, thereby combining and limiting the metal conductive seat and the plastic mounting seat.

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

[0018] Therefore, the one-way bearing structure of this utility model utilizes a plastic mounting base molded with a plurality of equidistant, radially penetrating mounting grooves, each of which accommodates a roller. Furthermore, a plurality of conductive inclined surfaces corresponding to the mounting grooves are formed on the peripheral surface of the plastic mounting base, allowing the rollers on the plastic mounting base to generate a one-way drive effect via the opposing metal conductive surfaces. The use of lightweight plastic material in the plastic mounting base reduces weight, while the metal conductive surfaces increase the area for strength resistance, making it less prone to breakage or cracking and effectively extending its service life. Thus, without affecting the strength of the transmitted power, it effectively achieves the goal of weight reduction, and further enhances its ease of processing and reduces manufacturing costs, significantly improving its practicality, increasing its added value, and realizing its economic benefits.

[0019] To enable a better understanding of the structure, features and other objectives of this utility model, preferred embodiments are listed below and described in detail with reference to the accompanying drawings, so that those skilled in the art can implement them. Attached Figure Description

[0020] Figure 1 This is a side cross-sectional view of an existing one-way bearing.

[0021] Figure 2 This is a three-dimensional exploded view of an existing one-way bearing, used to illustrate the state of its main components and their relative relationships.

[0022] Figure 3 This is a three-dimensional appearance diagram of the one-way bearing structure of this utility model.

[0023] Figure 4 This is a three-dimensional exploded view of the unidirectional bearing structure of this utility model, used to illustrate the state of its main components and their relative relationships.

[0024] Figure 5 This is a side cross-sectional view of the one-way bearing structure of this utility model, used to illustrate its composition.

[0025] Figure 6 This is a side cross-sectional view of the one-way bearing structure of this utility model in actual operation.

[0026] Explanation of reference numerals in the attached drawings: 10-One-way bearing; 11-Conduction ring seat; 12-Receiving groove; 121-Shallow groove; 122-Deep groove; 15-Roller; 16-Elastic element; 18-Semi-circular rod groove; 19-Positioning pin; 20-Input element; 30-Output element; 50-One-way bearing; 60-Plastic mounting seat; 61-Mounting groove; 62-Arched concave edge; 63-Step groove; 64-First braking arc surface; 65-Roller; 66-Elastic element; 70-Metal conduction seat; 71-Conduction inclined surface; 72-Deep groove; 73-Shallow groove; 74-Second braking arc surface; 75-First locking surface; 80-Input element; 90-Output element; 95-Second locking surface. Detailed Implementation

[0027] This utility model provides a one-way bearing structure. In the specific embodiments and components of this utility model illustrated in the accompanying drawings, all references to front and back, left and right, top and bottom, upper and lower, and horizontal and vertical are for convenience of description only and are not intended to limit this utility model or restrict its components to any position or spatial orientation. The dimensions specified in the drawings and specification may be varied according to the design and requirements of this utility model without departing from the scope of the claims.

[0028] like Figure 3 , Figure 4 , Figure 5As shown, the one-way bearing 50 of this utility model is applied between an input component 80 and an output component 90. The one-way bearing 50 is composed of a plastic mounting base 60, a plurality of rollers 65 and a metal transmission base 70, allowing the input component 80 to selectively actuate the output component 90 to a driving side in one direction.

[0029] The detailed structure of the one-way bearing 50 is as follows: Figure 3 , Figure 4 and Figure 5 As disclosed, the plastic mounting base 60 is injection molded from plastic material, and the plastic mounting base 60 has a plurality of equidistant, radially penetrating mounting grooves 61. These mounting grooves 61 can accommodate the aforementioned rollers 65, and each of the inner wall surfaces on both sides of the mounting grooves 61 has an arcuate concave edge 62 corresponding to the periphery of the rollers 65, thereby increasing the working space of the rollers 65. Furthermore, on the inner wall surface on both sides of the mounting grooves 61, on the inner wall surface corresponding to the side where the rollers 65 are not in the clamping action, a... The stepped grooves 63 are provided to accommodate an elastic member 66 that can support the outer edge of the opposing rollers 65. The inner wall surfaces of the mounting grooves 61 on both sides of the plastic mounting base 60 opposite to the metal conductor seat 70 are formed with a first braking arc surface 64, which is used to combine and limit the plastic mounting base 60 and the metal conductor seat 70. The aforementioned input member 80 is provided on the side of the plastic mounting base 60 opposite to the metal conductor seat 70, so that the input member 80 can contact and actuate the rollers 65 in the plastic mounting base 60.

[0030] Furthermore, the metal conductive seat 70 is made of a resistant metal material, and the metal conductive seat 70 can be disposed on the periphery or inner periphery of the plastic mounting base 60. This utility model primarily uses the metal conductive seat 70 disposed on the periphery of the plastic mounting base 60, and the input component 80 is disposed on the inner edge of the plastic mounting base 60. Additionally, the metal conductive seat 70 has a plurality of conductive inclined surfaces 71 corresponding to the mounting grooves 61 formed on the periphery of the surface of the plastic mounting base 60. Figure 5 As shown, a deep groove 72 is formed at one end of the inclined surface 71 opposite to the drive side, and a shallow groove 73 is formed at the other end corresponding to the drive side. This allows the input member 80 to actuate the rollers 65 to move to the shallow grooves 73 of the inclined surface 71, thereby generating a clamping and driving effect. Figure 6 As shown], when the input element 80 actuates the rollers 65 to move to the deep grooves 72 of the guide slopes 71, it can produce a freewheeling effect [e.g. Figure 5As shown, the shallow grooves 73 and deep grooves 72 of the adjacent conductive slopes 71 of the metal conductive seat 70 are respectively formed with a second actuating arc surface 74 corresponding to the first actuating arc surface 64 of the plastic mounting seat 60, thereby combining and limiting the metal conductive seat 70 and the plastic mounting seat 60. Furthermore, the metal conductive seat 70 has at least one first locking surface 75 corresponding to the periphery of the output member 90, and the output member 90 has a second locking surface 95 corresponding to the aforementioned first locking surface 75 on its opposite periphery, so that the metal conductive seat 70 can synchronously drive the output member 90, which can increase the resistance area between the metal conductive seat 70 and the output member 90.

[0031] This allows the plastic mounting base 60 to selectively and unidirectionally press the metal transmission base 70 with the rollers 65, so that the input component 80 can generate a unidirectional drive effect relative to the output component 90 through the one-way bearing 50, thereby forming a lightweight and durable one-way bearing structure.

[0032] As for the actual operation of the one-way bearing structure of this utility model, it is as follows: Figure 5 , Figure 6 As shown, when the input component 80 rotates toward a direction other than the drive side (such as stationary or clockwise), the rollers 65 on the plastic mounting base 60 of the one-way bearing 50 correspond to the deep grooves 72 of the conductive ramps 71 of the metal conductive base 70, so that the plastic mounting base 60 does not drive the metal conductive base 70 through the rollers 65, causing the input component 80 and the output component 90 to spin freely.

[0033] When the input component 80 rotates toward the drive side (e.g., counterclockwise), it can simultaneously drive the rollers 65 on the plastic mounting base 60, so that the rollers 65 can be actuated to the shallow grooves 73 opposite to the conduction ramps 71 of the metal conduction base 70, so that the input component 80 and the conduction ramps 71 of the metal conduction base 70 clamp the rollers 65, so that the input component 80 can drive the output component 90 unidirectionally through the one-way bearing 50.

[0034] The above-described embodiments are merely preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or embellishments made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

[0035] Through the foregoing design and description, the one-way bearing structure of this utility model utilizes the plastic mounting base 60 to be molded with a plurality of equidistant and radially penetrating mounting grooves 61, each of which accommodates a roller 65. Furthermore, the metal transmission seat 70 forms a plurality of transmission inclined surfaces 71 corresponding to the mounting grooves 61 on the peripheral surface of the plastic mounting base 60. This allows the rollers 65 on the plastic mounting base 60 to generate a one-way drive effect using the opposing metal transmission seat 70. The use of plastic material in the plastic mounting base 60 reduces weight, and the first locking surfaces 75 of the metal transmission seat 70 increase the area for strength resistance, making it less prone to breakage or cracking, effectively extending its service life. Thus, without affecting the strength of the transmitted power, it effectively achieves the purpose of lightweighting, and further has the advantages of easy processing and reduced manufacturing costs, significantly improving its practicality.

Claims

1. A one-way bearing structure, which is applied between an input member and an output member, for the input member to be able to drive the output member to a driving side one-way action, characterized in that, The one-way bearing comprises: a plastic mounting base formed by injection molding of plastic material, the plastic mounting base having a plurality of equidistant and radially penetrating mounting slots, wherein the plurality of mounting slots respectively accommodate a plurality of rollers, and the plurality of mounting slots respectively have an elastic member on a side different from a driving side of the plurality of rollers, an input member is disposed on a side of the plastic mounting base different from a metal conducting base, and the input member can contact the plurality of rollers in the plastic mounting base to drive the plurality of rollers; a metal conducting base made of a metal material with strength, the metal conducting base being disposed on a side of the plastic mounting base different from the input member, the metal conducting base having a plurality of conducting inclined surfaces corresponding to the surface periphery of the plastic mounting base and corresponding to the plurality of mounting slots, and the conducting inclined surfaces having a deep groove portion at one end corresponding to a side different from the driving side and a shallow groove portion at one end corresponding to the driving side.

2. The one-way bearing structure of claim 1, wherein: The metal conducting base is disposed on the periphery of the plastic mounting base, the input member is disposed on the inner edge of the plastic mounting base, and the output member is disposed on the outer edge of the metal conducting base.

3. The one-way bearing structure of claim 1, wherein: The plurality of mounting slots of the plastic mounting base have an arc concave edge corresponding to the periphery of the plurality of rollers on both sides of the mounting slots, so as to increase the working space of the plurality of rollers.

4. The one-way bearing structure of claim 1 or 3, wherein: The inner wall surface of the plurality of mounting slots of the plastic mounting base has a stepped groove corresponding to the side of the plurality of rollers that is not subjected to the pressing action, for respectively accommodating the plurality of elastic members.

5. The one-way bearing structure of claim 1, wherein: The inner wall surface of the plurality of mounting slots of the plastic mounting base respectively has a first actuating arc surface corresponding to a side of the metal conducting base, so as to limit the position of the plastic mounting base and the metal conducting base.

6. The one-way bearing structure of claim 5, wherein: The plurality of shallow groove portions and the plurality of deep groove portions between adjacent conducting inclined surfaces of the metal conducting base respectively have a second actuating arc surface corresponding to the first actuating arc surface of the plastic mounting base, so as to limit the position of the metal conducting base and the plastic mounting base.

7. The one-way bearing structure of claim 1 or 5 or 6, wherein: The metal conducting base has at least one first clamping surface corresponding to the periphery of the output member, and the output member has a second clamping surface corresponding to the first clamping surface, so as to increase the strength area between the metal conducting base and the output member.

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