Rhythm output mechanism and rhythm machine using same

Abstract

Provided are a rhythm output mechanism and a rhythm machine using the same, which are particularly suitable for massage chairs or shaking machines. The rhythm output mechanism mainly comprises: a base defining a reference plane; a rhythm member adapted to output a vertical rhythm substantially perpendicular to the reference plane; a driving member pivotally connected to the base by means of a first pivot, the rhythm member being pivotally connected to the driving member by means of a second pivot; and an oscillation limiting member pivotally connected to the base by means of a third pivot, the rhythm member being pivotally connected to the oscillation limiting member by means of a fourth pivot, and the oscillation limiting member and the driving member being arranged spaced apart from each other and parallel to each other; wherein an axis of the second pivot and an axis of the fourth pivot collectively define a first imaginary plane, and when the driving member is driven to oscillate about the first pivot within a prescribed angular range, the first imaginary plane remains substantially perpendicular to the reference plane, such that the rhythm member outputs the vertical rhythm.

Description

A rhythm output mechanism and its application in rhythmic motion Technical Field

[0001] This invention relates to the field of fitness equipment technology, specifically a rhythm output mechanism and its application in rhythmic motion. It aims to achieve efficient and stable vertical rhythm output by optimizing the design of transmission components, thereby improving user experience and promoting blood circulation and muscle activity throughout the body. Background Technology

[0002] With the fast pace of modern life and increasing work pressure, people are paying more and more attention to health and exercise. However, traditional fitness methods often focus on training local muscles, lacking comprehensive whole-body exercise, and the process can be monotonous and difficult to maintain in the long term. In recent years, rhythmic motion machines have gradually gained attention as a new type of fitness equipment. By simulating the natural vibrations of walking or running, rhythmic motion machines can effectively activate all muscle groups in the body, promote blood circulation, and increase the body's metabolic rate, thereby achieving fitness effects.

[0003] However, most existing rhythmic motion devices on the market have complex transmission structures, which are affected by factors such as manufacturing tolerances, material elasticity, wear, and external vibrations. This results in insufficient stability of vertical rhythm and deviations or fluctuations in output effect. This not only affects the user experience but may also reduce the fitness effect. Therefore, how to design a rhythmic motion device with a simple structure, stable transmission, and accurate output effect has become an urgent technical problem to be solved. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides a rhythm output mechanism and its application in a rhythm generator. Through optimized transmission component design, it achieves efficient and stable vertical rhythm output while enhancing the user experience.

[0005] The technical solution of this invention includes:

[0006] A rhythm output mechanism, comprising:

[0007] A base that defines a reference plane;

[0008] A rhythmic component adapted to output a vertical rhythm substantially perpendicular to the reference plane;

[0009] A driving member, pivotally connected to the base via a first pivot, and the pulsating member, pivotally connected to the driving member via a second pivot; and

[0010] A yaw limiting member is pivotally connected to the base via a third pivot, and the pulsating member is pivotally connected to the yaw limiting member via a fourth pivot. The yaw limiting member and the driving member are arranged at intervals and parallel to each other.

[0011] The axes of the second pivot and the fourth pivot together define a first imaginary plane. When the driving member is driven to oscillate around the first pivot within a specified angular range, the first imaginary plane and the reference plane remain substantially perpendicular, so that the rhythmic member outputs the vertical rhythm.

[0012] Furthermore, the axes of the first pivot and the third pivot together define a second imaginary plane, and when the rhythmic member outputs a vertical rhythm, the second imaginary plane and the first imaginary plane remain parallel.

[0013] Furthermore, a mounting base is formed at the top of the rhythmic member, and the mounting base is configured such that when the rhythmic member outputs the vertical rhythm, the upper surface always remains substantially horizontal relative to the reference plane.

[0014] Furthermore, the rhythmic component also includes two mounting plates fixedly connected to the mounting base, the mounting plates being pivotally connected to the yaw limiting component and the driving component.

[0015] Furthermore, the base includes a support pivotally connected to the drive member via a first pivot, and the yaw limiting member is pivotally connected to the support via a third pivot.

[0016] Furthermore, the rhythmic component, support, yaw limiting component, and driving component form a parallel four-bar linkage.

[0017] Furthermore, the rhythm output mechanism also includes a power unit and a yaw assembly, the yaw assembly being connected to the power unit via a transmission belt.

[0018] Furthermore, the oscillating assembly includes a drive shaft, an eccentric cam, and an oscillating sleeve disposed on the eccentric cam, the oscillating sleeve being connected to the rhythmic member via a drive shaft.

[0019] Furthermore, the rhythm output mechanism also includes a housing seat covered on the base, the housing seat being fixedly mounted on the mounting base and the top of the housing seat forming a mounting structure.

[0020] A rhythmic actuator, applied to a massage chair or a vibrator, includes the aforementioned rhythmic output mechanism, which is mounted on the seat frame of the massage chair via a mounting structure, or the rhythmic output mechanism is mounted on the pedal of the vibrator via a mounting structure.

[0021] The beneficial effects of the present invention are:

[0022] (1) The present invention utilizes an imaginary plane defined by the second and fourth pivots. When the driving component swings around the first pivot, this imaginary plane remains substantially perpendicular to the base reference plane. This design ingeniously achieves vertical rhythmic output from the rhythmic component, with smooth movement and no swaying. Furthermore, the design of the rhythmic component takes into account its stability during vertical rhythmic movement. In particular, the design of the mounting base ensures that its upper surface remains substantially parallel to the reference plane throughout the rhythmic movement, thereby improving the accuracy and consistency of the output effect.

[0023] (2) The present invention adopts a combination of transmission belt and swing component. The swing of the swing sleeve controls the driving component to generate linear vibration and drives the support to move up and down, so as to realize the periodic back and forth bounce of various parts of the body. At the same time, the transmission component is composed of multiple parts such as swing sleeve, support, rhythm component and connecting component, which simplifies its rhythm structure and reduces production cost.

[0024] (3) The present invention constructs an innovative parallel four-bar linkage through a carefully designed support, a swing limiting component, a driving component, and a rhythmic component. This mechanism design ensures that the rhythmic component can output a vertical rhythm that is basically perpendicular to the base reference plane when driven, while maintaining good stability and controllability. Attached Figure Description

[0025] Figure 1 is an exploded view of the rhythm output mechanism of the present invention.

[0026] Figure 2 is a diagram of the internal structure of the rhythm output mechanism of the present invention.

[0027] Figure 3 is a planar structural diagram of the rhythm output mechanism of the present invention.

[0028] Figure 4 is a bottom structural diagram of the rhythm output mechanism of the present invention.

[0029] Figure 5 is a connection principle diagram of the rhythm output mechanism of the present invention.

[0030] Figure 6 is a cross-sectional schematic diagram of the yaw component of the present invention.

[0031] Explanation of reference numerals in the attached drawings: 1. Base; 101. Opening; 102. Positioning pivot; 2. Power unit; 21. Motor; 22. Motor shaft; 23. Transmission wheel; 3. Oscillating assembly; 31. Eccentric cam; 32. Oscillating sleeve; 33. Transmission shaft; 34. Drive shaft; 4. Transmission belt; 5. Support; 6. Rhythmic component; 61. Mounting seat; 62. Mounting plate; 7. Drive component; 8. Oscillating limiting component; 9. Outer shell; 10. First pivot; 11. Second pivot; 12. Third pivot; 13. Fourth pivot. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar words used in this patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar words mean that the element or object preceding "comprising" or "including" covers the element or object listed following "comprising" or "including" and its equivalents, and does not exclude other elements or objects. The terms “center,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “inner,” and “outer” are used only to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. They are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Before describing the specific embodiments of the present invention in detail, it is necessary to briefly review the overall design concept. The present invention aims to provide a highly efficient and stable rhythm output mechanism and its application in rhythmic motion. This mechanism, through precise mechanical structure design, achieves vertical rhythm output that is substantially perpendicular to the base reference plane, and is widely used in fitness equipment, massage equipment, rehabilitation equipment, and vibration machines. The specific embodiments of the rhythm output mechanism and rhythmic motion of the present invention will be described in detail below with reference to Figures 1 to 5, in order to better understand the technical solution and beneficial effects of the present invention.

[0035] I. Overall Structure Overview

[0036] This invention discloses a rhythm output mechanism and its application in a rhythm generator. Through precise mechanical structure design, this mechanism achieves efficient and stable vertical rhythm output, and can be widely used in various fields such as fitness equipment, massage equipment, rehabilitation equipment, and vibration machines. As shown in Figure 1, the rhythm output mechanism mainly includes a base 1, a housing 9, a power unit 2, a swing assembly 3, a transmission belt 4, a support 5, a rhythm component 6, a drive component 7, and a swing limiting component 8.

[0037] The base 1, serving as the supporting foundation for the entire mechanism, is composed of several longitudinal and transverse frames, forming a stable structural framework. The base 1 not only provides an installation platform for each component but also defines a reference plane S1, serving as a reference for the subsequent movement and positional relationships of the components. The establishment of the reference plane S1 ensures the verticality and stability of the rhythmic output. Specifically, the reference plane S1 can be defined by three points on the base 1. In this embodiment, the reference plane S1 is a horizontal reference plane, as shown in Figure 3.

[0038] The outer casing 9, mounted on the base 1, not only protects the internal mechanical structure but also facilitates the installation of the rhythm output mechanism with various devices through its surface mounting structure. The material and design of the outer casing 9 must consider durability, aesthetics, and user experience to ensure stability and comfort during long-term use.

[0039] II. Power unit and oscillation assembly

[0040] The power unit 2 is the core component of the rhythmic output mechanism of this invention, responsible for providing driving force to drive the movement of the entire mechanism. As shown in Figure 2, the power unit 2 mainly consists of a motor 21 and a motor shaft 22. The motor 21 has a built-in preset program and circuit control system, which can adjust the speed and power output according to user needs or preset modes. The motor shaft 22 is connected to the axis of the motor 21 and extends to both sides to drive the oscillating component 3 to rotate.

[0041] As shown in Figure 6, the oscillation assembly 3 includes an eccentric cam 31, an oscillation sleeve 32, a transmission shaft 33, and a drive shaft 34. The drive shaft 34 is securely mounted on the base 1 via a positioning pivot 102, and the eccentric cam 31 is sleeved on the drive shaft 34. The oscillation sleeve 32 is a plate-shaped component, its bottom connected to the eccentric cam 31, and it is driven by the eccentric cam 31 to produce oscillation. When the eccentric cam 31 rotates, the oscillation sleeve 32 swings left and right with its bottom connection point as support. This vertical displacement is converted into the vertical rhythm of the rhythmic component 6 through the transmission of subsequent components.

[0042] The transmission belt 4 serves as a speed change and transmission link between the power unit 2 and the yaw assembly 3. The transmission belt 4 absorbs some vibration energy, reducing noise and impact during transmission, and improving the durability and stability of the entire mechanism. As shown in Figure 2, the transmission belt 4 is fitted between the transmission wheel 23 on the motor shaft 22 and the yaw assembly 3, forming a speed change device. When the motor 21 starts, the motor shaft 22 drives the transmission wheel 23 to rotate, which in turn drives the yaw assembly 3 to rotate via the transmission belt 4.

[0043] III. Detailed Structure of the Driving Components

[0044] The driving component 7 is one of the key components for achieving vertical rhythmic output in this invention, and its structural design directly affects the stability and efficiency of the rhythmic output. In this embodiment, the driving component 7 is designed as a horizontal component, shaped as a hollow cuboid with open ends, as shown in Figure 3. This design not only facilitates connection with other components but also helps to reduce weight and improve the overall motion performance of the mechanism.

[0045] The driving component 7 is pivotally connected to the base 1 (or support 5) via the first pivot 10, enabling it to move up and down relative to the base under the drive of the oscillating component 3. The installation position of the first pivot 10 needs to be precisely calculated to ensure that the driving component 7 maintains a stable trajectory during oscillation. At the same time, the clearance between the first pivot 10 and the driving component 7 needs to be strictly controlled to avoid instability caused by loosening or wear.

[0046] The drive shaft 33 is a crucial component connecting the oscillating sleeve 32 and the drive member 7. In this embodiment, the drive shaft 33 is fixedly connected to the top of the oscillating sleeve 32 and transmits the oscillating motion of the oscillating sleeve 32 to the drive member 7. The design of the drive shaft 33 must consider its strength and rigidity to ensure that it does not deform or break during power transmission. Simultaneously, the connection between the drive shaft 33, the oscillating sleeve 32, and the drive member 7 must be secure and reliable to prevent motion failure due to loosening.

[0047] IV. Rhythmic Components and Pendulum Limiting Components

[0048] The rhythmic component 6 is pivotally connected to the drive component 7 via a second pivot 11, and its design aims to output a vertical rhythm substantially perpendicular to the reference plane S1. The rhythmic component 6 is an approximately T-shaped wheel fork-like component, including front and rear mounting plates 62 and a top mounting base 61. The mounting base 61 is flat and used to secure the housing 9, ensuring that its upper surface remains substantially parallel to the reference plane S1 throughout the rhythmic process. This design not only improves the accuracy of the output effect but also enhances the comfort of the user experience.

[0049] The yaw limiting member 8 is pivotally connected to the base 1 (or support 5) via a third pivot 12, and is arranged at intervals and parallel to the driving member 7. The rhythmic member 6 is also pivotally connected to the yaw limiting member 8 via a fourth pivot 13 to further limit its yaw phenomenon during movement. The design of the yaw limiting member 8 must consider its strength and stiffness to ensure that it does not deform or fail during the yaw limiting of the rhythmic member 6. At the same time, the connection between the yaw limiting member 8 and the base 1 (or support 5) and the rhythmic member 6 must be firm and reliable to ensure the stability of the entire mechanism.

[0050] V. Parallel Four-Bar Mechanism and Motion Trajectory

[0051] Support 5, rhythmic component 6, driving component 7, and yaw limiting component 8 are connected by a pivot to form a parallel four-bar linkage. This mechanism design ensures that the relative positions of the components remain unchanged during movement, thereby achieving stable vertical rhythmic output. The advantages of the parallel four-bar linkage are its simple structure, high transmission efficiency, and good stability, making it very suitable for use in the rhythmic output mechanism of this invention.

[0052] The axes of the second pivot 11 and the fourth pivot 13 together define a first imaginary plane S2. When the drive member 7 oscillates around the first pivot 10, the first imaginary plane S2 remains substantially perpendicular to the reference plane S1, thereby ensuring the output of vertical rhythm. Simultaneously, the axes of the first pivot 10 and the third pivot 12 together define a second imaginary plane S3. When the rhythmic member outputs vertical rhythm, the second imaginary plane S3 remains parallel to the first imaginary plane S2, further enhancing the stability of the mechanism.

[0053] Due to the design of the parallel four-bar linkage, the motion trajectory of the oscillating component 3 driving the transmission shaft 33 coincides with the upward / downward motion trajectory of the rhythm component 6. This design makes power transmission more direct and efficient, and ensures the stability and accuracy of the rhythm output.

[0054] VI. Specific Implementation Details and Precautions

[0055] In this embodiment, the base 1 includes a support 5, which is a vertical rod open at both ends, with a pivot at its bottom that is fixedly connected to the base 1. The support 5 is pivotally connected to the drive member 7 via a first pivot 10, and the sway limiting member 8 is pivotally connected to the support 5 via a third pivot 12. This design simplifies the connection structure between the base and the support and improves the stability of the overall mechanism.

[0056] It is important to note that since the rotation of the eccentric cam 31 causes the swing sleeve 32 to shift vertically, the distance between the positioning pivots 102 at both ends of the swing assembly 3 and the base 1, where they connect to the eccentric cam 31, should be greater than the vertical shift distance of the swing sleeve 32. Alternatively, an opening 101 can be made at the bottom of the base corresponding to the position of the swing sleeve 32 to allow for smooth downward movement of the swing sleeve 32. This design detail ensures that the swing sleeve 32 is not obstructed by the base or other components during its swing, thus guaranteeing the stability and continuity of the rhythmic output.

[0057] In this embodiment, each of the support 5, the rhythmic component 6, the driving component 7, and the sway limiting component 8 is provided in pairs, symmetrically pivotally connected to the transmission shaft 33. Furthermore, the structure and connection method of each pair of supports 5, rhythmic components 6, driving components 7, and sway limiting components 8 are completely identical. This symmetrical design not only improves the balance and stability of the overall mechanism but also facilitates quality control during processing and assembly.

[0058] VII. Working Principle and Effects

[0059] When the motor 21 of the power unit 2 starts, the motor shaft 22 drives the eccentric cam 31 to rotate, which in turn drives the oscillating sleeve 32 to oscillate. The transmission shaft 33 at the top of the oscillating sleeve 32 oscillates accordingly, causing the drive component 7 to move up and down around the first pivot 10. Due to the action of the parallel four-bar linkage, the rhythm component 6 outputs vertical rhythm under the drive component 7, and transmits it to the user through the outer casing 9.

[0060] As shown in Figure 5, when the eccentric cam 31 is rotated by both sides of the motor shaft 22, the oscillating sleeve 32 generates an oscillating cycle with its bottom connection point as the fulcrum. This oscillating motion is transmitted to the drive component 7 and the rhythm component 6 through the transmission shaft 33, causing them to oscillate up and down. The pivot connection between the rhythm component 6 and the oscillating limiting component 8 ensures its stability during the motion process and avoids the occurrence of oscillation.

[0061] Through the coordinated operation of the aforementioned power unit 2 and the rhythmic component 6, the rhythmic output mechanism of this invention can output stable and efficient vertical rhythms. When the user stands, sits, or lies on the outer shell base 9, the whole body can generate cyclical vibrations, causing various parts of the body to bounce back and forth periodically. This vibration effect not only stimulates the internal organs and activates cells, but also promotes blood circulation, relaxes nerves and muscles, achieving numerous health and wellness benefits. Simultaneously, it can rapidly improve muscle strength and endurance during exercise, meeting the diverse needs of users for fitness and rehabilitation.

[0062] In summary, the rhythm output mechanism and rhythm generator of this invention achieve efficient and stable vertical rhythm output through precise mechanical structure design and the application of a parallel four-bar linkage. This mechanism boasts advantages such as simple structure, high transmission efficiency, and good durability, and can be widely applied in various fields such as fitness equipment, massage equipment, and rehabilitation equipment. Furthermore, the mounting structure design on the outer casing allows the entire rhythm output mechanism to be easily installed in different devices, meeting diverse user needs.

[0063] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is defined by the claims. Any improvements and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A rhythm output mechanism, characterized in that, include: A base that defines a reference plane; A rhythmic component adapted to output a vertical rhythm substantially perpendicular to the reference plane; A drive member is pivotally connected to the base via a first pivot, and the rhythmic member is pivotally connected to the drive member via a second pivot; as well as A yaw limiting member is pivotally connected to the base via a third pivot, and the pulsating member is pivotally connected to the yaw limiting member via a fourth pivot. The yaw limiting member and the driving member are arranged at intervals and parallel to each other. The axes of the second pivot and the fourth pivot together define a first imaginary plane. When the driving member is driven to oscillate around the first pivot within a specified angular range, the first imaginary plane and the reference plane remain substantially perpendicular, so that the rhythmic member outputs the vertical rhythm.

2. The rhythm output mechanism according to claim 1, characterized in that, The axis of the first pivot and the axis of the third pivot together define a second imaginary plane. When the rhythmic member outputs a vertical rhythm, the second imaginary plane and the first imaginary plane remain parallel.

3. A rhythmic output mechanism according to claim 1 or 2, characterized in that, The top of the rhythmic member forms a mounting base, which is configured such that when the rhythmic member outputs the vertical rhythm, the upper surface always remains substantially horizontal relative to the reference plane.

4. The rhythm output mechanism according to claim 3, characterized in that, The rhythmic component also includes two mounting plates fixedly connected to the mounting base, the mounting plates being pivotally connected to the yaw limiting component and the driving component.

5. A rhythmic output mechanism according to claim 1, characterized in that, The base includes a support pivotally connected to the drive member via a first pivot, and the yaw limiting member pivotally connected to the support via a third pivot.

6. The rhythm output mechanism according to claim 5, characterized in that, The rhythmic component, support, yaw limiting component, and driving component form a parallel four-bar linkage.

7. The rhythm output mechanism according to claim 1, characterized in that, The rhythm output mechanism also includes a power unit and a yaw assembly, the yaw assembly being connected to the power unit via a drive belt.

8. A rhythm output mechanism according to claim 7, characterized in that, The oscillating assembly includes a drive shaft, an eccentric cam, and an oscillating sleeve disposed on the eccentric cam, the oscillating sleeve being connected to the rhythmic component via a drive shaft.

9. A rhythmic output mechanism according to claim 6, characterized in that, The rhythm output mechanism also includes a housing body covered on the base, the housing body being fixedly installed on the mounting base and the top of the housing body forming a mounting structure.

10. A rhythmic device applied to a massage chair or a vibration machine, characterized in that, Includes the rhythm output mechanism as described in any one of claims 1-9, wherein the rhythm output mechanism is mounted on the seat frame of the massage chair via a mounting structure, or wherein the rhythm output mechanism is mounted on the pedal of the vibrating machine via a mounting structure.

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