One-way bearing

Abstract

To provide a one-way bearing which enables reduction of the weight by change of a material, makes breakage and rapture less likely to occur, and can effectively extend the service life.SOLUTION: A one-way bearing of the invention is used between an input member and an output member and includes: a plastic mounting base 60; a plurality of rollers; and a metallic transmission base. In the plastic mounting base, radially-penetrating mounting recesses are formed at equal intervals and the rollers are received in the corresponding mounting recesses. A surface of the metallic transmission base that corresponds to a peripheral edge part of the plastic mounting base is formed with a plurality of transmission slopes respectively corresponding to the mounting recesses, so that the rollers arranged on the plastic mounting base may selectively clamp the metallic transmission base by means of the transmission slopes respectively facing the rollers to induce an effect of one-way driving. In this way, the molded plastic mounting base may help reduce the weight of the one-way bearing and achieve reduction of the weight and costs and easy machinability without affecting strength of power transmission.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention belongs to the technical field of bearings, and specifically relates to a lightweight one-way bearing. Without affecting the strength of power conduction, it can effectively reduce the weight of the one-way bearing, achieve the effects of easy processing and cost reduction in manufacturing, and relates to a one-way bearing.

Background Art

[0002] Generally seen one-way bearings, as shown in FIGS. 1 and 2, the one-way bearing 10 is used between an input member 20 and an output member 30, and the input member 20 can selectively drive the output member 30 in one direction by using the one-way bearing 10. Among them, the one-way bearing 10 includes a conduction ring seat 11, and the conduction ring seat 11 is provided with a plurality of accommodation grooves 12 formed at equal intervals corresponding to the peripheral edge of the input member 20. Shallow groove portions 121 and deep groove portions 122 are respectively provided at both ends of the inner bottom surface of the plurality of accommodation grooves 12. Rollers 15 are installed in the plurality of accommodation grooves 12. Further, an elastic member 16 is provided between the plurality of accommodation grooves 12 and the deep groove portions 122 opposite to the rollers 15. The plurality of rollers 15 can be held to be pressed toward the positions of the plurality of shallow groove portions 121 most quickly to generate one-way drive, and a plurality of semi-circular bar grooves 18 are provided at equal intervals on the outer edge of the conduction ring seat 11, and a regulating action is generated on the output member 30 in combination with a plurality of positioning pins 19.

[0003] The aforementioned existing one-way bearing 10 has a single-member structure. In order not to affect the resistance during conduction, it is necessary to process the conduction ring seat 11 and incorporate the plurality of rollers 15. Moreover, in order to generate the conduction force on the output member 30 by directly contacting the plurality of rollers 15 with the input member 20, the strength of the conduction ring seat 11 of the one-way bearing 10 to withstand the resistance must be increased. To prevent its fracture or rupture, the thickness of the conduction ring seat 11 must be increased, which invisibly increases the overall weight and processing difficulty, making it incompatible with the trend of lightweight design. In addition, the one-way bearing 10 uses the plurality of small-diameter semi-circular rod grooves 18 and the plurality of positioning pins 19 to produce a regulating effect on the output member 30. However, it is difficult to continuously receive force and continue to conduct and output. Prolonged operation may lead to the fracture of the plurality of positioning pins 19 or the rupture of the conduction ring seat 11, affecting its service life.

[0004] That is, the existing one-way bearing is not perfect in terms of structural design and has problems such as lack of weight reduction and insufficient force that can be received. Therefore, there is still a need for improvement. How to improve the above problems is the problem to be solved by the present invention.

Summary of the Invention

Problems to be Solved by the Invention

[0005] Therefore, the main object of the present invention is to provide a one-way bearing that can reduce weight by changing materials, increase the area of the resistance strength, is less likely to cause fracture or rupture, and can effectively extend the service life.

[0006] In addition, another main object of the present invention is to provide a one-way bearing that can achieve the objectives of weight reduction and volume reduction without affecting the strength of the conduction power, is easy to process, and can suppress the manufacturing cost.

Means for Solving the Problems

[0007] The present invention will be described below. The one-way bearing described in claim 1 is used between an input member and an output member, and the input member can selectively move the output member in one direction toward the driving side. The one-way bearing includes a plastic mounting seat and a metal conduction seat. The plastic mounting seat is formed by injection molding a plastic material and has a plurality of mounting grooves penetrating in the radial direction at equal intervals. Among them, rollers are respectively accommodated in the plurality of mounting grooves, and elastic members are respectively installed on one side of the non-driving side of the plurality of rollers in the plurality of mounting grooves. The input member is installed on the side of the plastic mounting seat without the metal conduction seat, and the input member can contact and drive the plurality of rollers in the plastic mounting seat. The metal conduction seat is manufactured from a metal material with resistance and can be installed on the side of the plastic mounting seat without the input member. A plurality of conduction slopes corresponding to the plurality of mounting grooves are formed on the peripheral edge of the surface of the metal conduction seat corresponding to the plastic mounting seat. A deep groove portion is formed at one end corresponding to the non-driving side among both ends of the plurality of conduction slopes, and a shallow groove portion is formed at one end corresponding to the driving side.

[0008] In the one-way bearing described in claim 2, the metal conduction seat in claim 1 is installed outside the plastic mounting seat, the input member is installed inside the plastic mounting seat, and the output member is installed outside the metal conduction seat.

[0009] In the one-way bearing described in claim 3, arc concave surfaces corresponding to the peripheral edges 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 in claim 1, increasing the operating space of the plurality of rollers.

[0010] The one-way bearing according to claim 4 has a step groove formed on the inner wall surface of the plastic mounting seat body in claim 1 or 3 on the side corresponding to the inner wall surface on both sides of the plurality of mounting grooves that does not undergo the pressing operation of the plurality of rollers, and the plurality of elastic members facing each other are accommodated therein.

[0011] The one-way bearing according to claim 5 has a first braking arc surface formed on each side of the inner wall surface of the plurality of mounting grooves of the plastic mounting seat body in claim 1 that faces the metal conduction seat body, and the plastic mounting seat body and the metal conduction seat body are positionally regulated by the connection.

[0012] The one-way bearing according to claim 6 has a second braking arc surface corresponding to the first braking arc surface of the plastic mounting seat body formed between the plurality of shallow groove portions and the plurality of deep groove portions of the plurality of adjacent conduction inclined surfaces of the metal conduction seat body in claim 5, and the metal conduction seat body and the plastic mounting seat body are positionally regulated by the connection.

[0013] The one-way bearing according to claim 7 has at least one first engaging surface formed on the peripheral portion of the metal conduction seat body corresponding to the output member in claim 1 or 5 or 6, and a second engaging surface corresponding to the first engaging surface is formed on the peripheral portion of the output member facing it, increasing the resistance area between the metal conduction seat body and the output member.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Best Mode for Carrying Out the Invention

[0015] As shown in FIGS. 3, 4, and 5, the one-way bearing 50 of the present invention is used between the input member 80 and the output member 90. The one-way bearing 50 is composed of a plastic mounting seat body 60, a plurality of rollers 65, and a metal conduction seat body 70. The input member 80 can selectively operate the output member 90 and operate in one direction on the driving side.

[0016] As shown in FIGS. 3, 4, and 5, the detailed configuration of the one-way bearing 50 is such that the plastic mounting seat body 60 is formed by injection molding a plastic material. The plastic mounting seat body 60 is provided with a plurality of mounting grooves 61 penetrating in the radial direction at equal intervals, and the rollers 65 can be accommodated in the plurality of mounting grooves 61. Arc concave surfaces 62 corresponding to the peripheral edges of the plurality of rollers 65 are respectively formed on the opposite inner wall surfaces on both sides of the plurality of mounting grooves 61, increasing the operating space of the plurality of rollers 65. Further, a step groove 63 is formed on the inner wall surface corresponding to one side where the plurality of rollers 65 do not perform a pressing operation among the inner wall surfaces on both sides of the plurality of mounting grooves 61, and elastic members 66 that can abut against the outer edges of the corresponding rollers 65 can be respectively accommodated. Further, a first braking arc surface 64 is formed on one side of the inner wall surfaces on both sides of the plurality of mounting grooves 61 of the plastic mounting seat body 60 facing the metal conduction seat body 70. By bonding, the plastic mounting seat body 60 and the metal conduction seat body 70 are position-regulated. The input member 80 is installed on the side of the plastic mounting seat body 60 without the metal conduction seat body 70, and the input member 80 can be brought into contact with the plurality of rollers 65 in the plastic mounting seat body 60 and driven.

[0017] In addition, the metal conduction seat body 70 is manufactured from a metal material with resistance, and the metal conduction seat body 70 can be installed on the outside or inside of the plastic mounting seat body 60. In the present invention, the main embodiment is that the metal conduction seat body 70 is installed on the outside of the plastic mounting seat body 60, and the input member 80 is installed inside the plastic mounting seat body 60. Further, a plurality of conduction inclined surfaces 71 corresponding to the plurality of mounting grooves 61 are formed on the peripheral edge of the surface of the metal conduction seat body 70 corresponding to the plastic mounting seat body 60. As shown in FIG. 5, a deep groove portion 72 is formed at one end corresponding to the non-driving side among both ends of the plurality of conduction inclined surfaces 71, and a shallow groove portion 73 is formed at one end corresponding to the driving side. When the input member 80 operates and the plurality of rollers 65 move to the plurality of shallow groove portions 73 of the plurality of conduction inclined surfaces 71, a pressing drive action is generated (see FIG. 6). On the contrary, when the input member 80 moves the plurality of rollers 65 to the plurality of deep groove portions 72 of the plurality of conduction inclined surfaces 71, an idling action can be generated (see FIG. 5). Further, a second braking arc surface 74 corresponding to the first braking arc surface 64 of the plastic mounting seat body 60 is formed between the plurality of shallow groove portions 73 and the plurality of deep groove portions 72 of the plurality of adjacent conduction inclined surfaces 71 of the metal conduction seat body 70, and the metal conduction seat body 70 and the plastic mounting seat body 60 are position-regulated by the connection. Furthermore, at least one first engaging surface 75 is formed on the peripheral edge of the metal conduction seat body 70 corresponding to the output member 90, and a second engaging surface 95 corresponding to the first engaging surface 75 is formed on the opposite peripheral edge of the output member 90, so that the output member 90 can be driven synchronously with the metal conduction seat body 70, and the resistance area between the metal conduction seat body 70 and the output member 90 can be increased.

[0018] Thereby, the plurality of rollers 65 are used on the plastic mounting seat body 60 to selectively press the metal conduction seat body 70 in one direction, and an action of driving the output member 90 in one direction through the one-way bearing 50 on the input member 80 is generated, and a lightweight and breakage-resistant one-way bearing can be configured.

[0019] During the actual operation of the one-way bearing of the present invention, as shown in FIGS. 5 and 6, when the input member 80 rotates toward the non-driving side (such as stationary or clockwise), the plurality of rollers 65 on the plastic mounting seat 60 of the one-way bearing 50 are located on one side of the plurality of deep groove portions 72 of the plurality of conductive inclined surfaces 71 of the metal conductive seat 70. The plastic mounting seat 60 cannot move the metal conductive seat 70 through the plurality of rollers 65, and an idling is formed between the input member 80 and the output member 90.

[0020] When the input member 80 rotates toward the driving side (such as counterclockwise), the plurality of rollers 65 on the plastic mounting seat 60 are synchronously driven, and the plurality of rollers 65 are moved to the plurality of shallow groove portions 73 opposite to the plurality of conductive inclined surfaces 71 of the metal conductive seat 70. The input member 80 and the plurality of conductive inclined surfaces 71 of the metal conductive seat 70 are opposed to sandwich and compress the plurality of rollers 65, and the input member 80 can drive the output member 90 in one direction through the one-way bearing 50.

[0021] As described in the above design and explanation, in the one-way bearing of the present invention, the plurality of mounting grooves 61 penetrating radially at equal intervals are formed in the plastic mounting seat 60, and the rollers 65 are respectively accommodated in the plurality of mounting grooves 61. The metal conductive seat 70 is provided with a plurality of conductive inclined surfaces 71 corresponding to the plurality of mounting grooves 61 on the surface corresponding to the peripheral portion of the plastic mounting seat 60. The plurality of rollers 65 on the plastic mounting seat 60 can utilize the opposing metal conductive seat 70 to generate a driving action in one direction. By using a plastic material for the plastic mounting seat 60, the weight is reduced, and at the same time, the area of the anti-resistance strength is increased through the plurality of first engaging surfaces 75 of the metal conductive seat 70, making it difficult to cause fracture or rupture, effectively extending the service life, and effectively achieving the purpose of weight reduction without affecting the strength of power conduction. In addition, it is easy to process, suppresses the manufacturing cost, and can greatly improve its practicality.

Explanation of Reference Numerals

[0022] 10 One-way bearing 11 Conductive ring seat 12 Receiving groove 121 Shallow groove part 122 Deep groove part 15 Roller 16 Elastic member 18 Semi-circular bar groove 19 Positioning pin 20 Input member 30 Output member 50 One-way bearing 60 Plastic mounting seat 61 Mounting groove 62 Arc concave surface 63 Step groove 64 First braking arc surface 65 Roller 66 Elastic member 70 Metal conductive seat 71 Conductive inclined plane 72 Deep groove part 73 Shallow groove part 74 Second braking arc surface 75 First engaging surface 80 Input member 90 Output member 95 Second engaging surface

Claims

**Claim 1** A one-way bearing used between an input member and an output member, wherein the input member can selectively move the output member in one direction toward the driving side, and the one-way bearing includes a plastic mounting seat and a metal conduction seat. The plastic mounting seat is formed by injection molding a plastic material and has a plurality of mounting grooves penetrating in the radial direction at equal intervals. Among them, rollers are respectively accommodated in the plurality of mounting grooves, and elastic members are respectively installed on one side of the non-driving side of the plurality of rollers in the plurality of mounting grooves. The input member is installed on the side of the plastic mounting seat without the metal conduction seat, and the input member can contact and drive the plurality of rollers in the plastic mounting seat. The metal conduction seat is manufactured from a metal material with resistance and can be installed on the side of the plastic mounting seat without the input member. A plurality of conduction slopes corresponding to the plurality of mounting grooves are formed on the peripheral edge of the surface of the metal conduction seat corresponding to the plastic mounting seat. A deep groove portion is formed at one end corresponding to the non-driving side among both ends of the plurality of conduction slopes, and a shallow groove portion is formed at the other end corresponding to the driving side. A one-way bearing, characterized by the above. **Claim 2** The one-way bearing according to claim 1, characterized in that the metal conduction seat is installed outside the plastic mounting seat, the input member is installed inside the plastic mounting seat, and the output member is installed outside the metal conduction seat. **Claim 3** The one-way bearing according to claim 1, characterized in that arc concave surfaces corresponding to the peripheral edges 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, increasing the operating space of the plurality of rollers. **Claim 4** The one-way bearing according to claim 1 or 3, characterized in that step grooves are formed on the inner wall surfaces on both sides of the plurality of mounting grooves of the plastic mounting seat corresponding to the side where the plurality of rollers do not perform a pressing operation, and the plurality of elastic members facing each other are accommodated therein. **Claim 5** On one side of the inner wall surfaces on both sides of the plurality of mounting grooves of the plastic mounting seat body opposite to the metal conduction seat body, first braking arc surfaces are respectively formed, and the plastic mounting seat body and the metal conduction seat body are positionally restricted by connection. The one-way bearing according to claim 1, characterized in that.

6. On the plurality of shallow groove portions and the plurality of deep groove portions of the plurality of adjacent conduction inclined surfaces of the metal conduction seat body, second braking arc surfaces corresponding to the first braking arc surfaces of the plastic mounting seat body are respectively formed, and the metal conduction seat body and the plastic mounting seat body are positionally restricted by connection. The one-way bearing according to claim 5, characterized in that.

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

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