Massager with damping structure

Abstract

The invention discloses a massager. The massager comprises a massager main body and a vibration device, the vibration device comprises a base, and the base is provided with a first through hole for the rotating shaft to penetrate through; the massager body comprises a supporting part, and the supporting part is provided with a second through hole for the rotating shaft to penetrate through. The massager further comprises a flexible shaft sleeve arranged on the rotating shaft in a sleeving mode, and the flexible shaft sleeve is installed in the first through hole or the second through hole.

Description

Technical Field

[0001] This invention relates to a massager, and more particularly to a vibration massager with an improved shock-absorbing structure. Background Technology

[0002] Massagers have become a common household appliance. As a health-care appliance, a massager typically provides localized stimulation to the skin and muscles, accelerating blood circulation and regulating and improving certain physiological functions.

[0003] A vibrating massager is a type of electric massager that generates high-frequency vibrations through a vibration device and applies these vibrations to specific areas of the body, stimulating the skin, muscles, and nerves. Vibrating massagers can typically be strapped to the body or be handheld. One problem with vibrating massagers is that the high-frequency vibrations can cause harmful resonance in other components, leading to noise and increased overall vibration, causing discomfort to the user. This resonance problem is particularly pronounced with higher vibration power.

[0004] Existing technology typically places an elastic pad under the vibrating device to isolate vibration transmission. However, this usually only applies to fixed vibrating devices, such as handheld massagers, and is not suitable for handheld vibrating massagers with adjustable angles. Summary of the Invention

[0005] To solve or alleviate at least some of the technical problems mentioned in the background art, the present invention proposes a novel massager and its shock absorption structure.

[0006] According to an exemplary embodiment, this application discloses a massager, which includes a massager body and a vibration device. The vibration device includes a base with a first through hole for a rotating shaft to pass through. The massager body includes a support portion with a second through hole for the rotating shaft to pass through. The massager also includes a flexible bushing sleeved on the rotating shaft, which is installed in the first or second through hole.

[0007] According to another exemplary embodiment, the base of the vibration device includes a bottom shell and a rotating shaft mounting portion protruding from the bottom surface of the bottom shell; the support portion includes a first bracket and a second bracket, and the rotating shaft mounting portion is disposed between the first bracket and the second bracket.

[0008] According to yet another exemplary embodiment, the flexible bushing includes a first bushing, the first bushing including a first cylindrical portion located between the inner peripheral surface of the first through hole and the outer peripheral surface of the rotating shaft, and a first flange portion located between the rotating shaft mounting portion and the first bracket.

[0009] According to another exemplary embodiment, a plurality of grooves extending in the axial direction are uniformly distributed along the circumferential direction on the outer peripheral surface of the first cylindrical portion.

[0010] According to yet another exemplary embodiment, a plurality of protrusions that abut against the rotating shaft mounting portion are uniformly provided on the surface of the first flange portion opposite to the rotating shaft mounting portion.

[0011] According to yet another exemplary embodiment, the protrusion is a dot-shaped protrusion.

[0012] According to another exemplary embodiment, the cross-section of the first through hole is racetrack-shaped or elliptical, the major axis of the cross-section of the first through hole is perpendicular to the bottom surface of the bottom shell of the vibration device, and the outer diameter of the first cylindrical portion is the same as the minor axis length of the cross-section of the first through hole.

[0013] According to yet another exemplary embodiment, the flexible bushing further includes a second bushing, the second bushing including a second cylindrical portion located between the inner circumferential surface of the second through hole and the outer circumferential surface of the rotating shaft, and a second flange portion located between the rotating shaft mounting portion and the second bracket.

[0014] According to yet another exemplary embodiment, the massager further includes an elastic suspension member mounted to the top of the vibration device, and the outer edge of the elastic suspension member is connected to the massager body.

[0015] According to yet another exemplary embodiment, the massager further includes: a pressure plate, the middle portion of which is clamped between the vibrating device and the pressure plate; and a screw that secures the pressure plate and the elastic suspension member to the vibrating device.

[0016] The beneficial technical effects of the various embodiments of the present invention are as follows:

[0017] 1. By fitting a flexible bushing on the connecting shaft between the vibration device and the massager body, the transmission of vibration from the vibration device to the massager body can be reduced, thereby reducing resonance;

[0018] 2. By designing the flexible bushing to include a cylindrical part and a flange part, it can simultaneously reduce vibration and isolate shock in both the radial and axial directions of the rotating shaft.

[0019] 3. By setting a groove on the outer periphery of the cylindrical part of the flexible bushing, the transmission of low-frequency vibration from the vibration device to the massager body can be further reduced;

[0020] 4. By providing various protrusions on the end face of the flange of the flexible bushing, the transmission of low-frequency vibrations from the vibration device to the massager body can be further reduced.

[0021] 5. By symmetrically setting two flexible bushings, not only is installation convenient, but vibration damping and isolation effects can also be provided at both ends of the axial direction;

[0022] 6. By setting the cross-section of the through hole on the rotating shaft mounting part to be elliptical or racetrack-shaped, the vibration device can be given additional freedom in the swing direction perpendicular to the rotation direction, making the angle adjustment of the vibration device more flexible and better conforming to the skin of the user's massaged area.

[0023] 7. By setting an elastic suspension component at the top of the vibration device, the flexible vibration device can be properly constrained to prevent it from shaking randomly, and at the same time, the vibration device can be prevented from transmitting vibration to the massager body through the top.

[0024] 8. By fixing the middle part of the elastic suspension component between the pressure plate and the vibration device with screws, the fixation is more secure, preventing accidental detachment, and enabling the movement of the elastic suspension component and the vibration device to be synchronized, thus avoiding noise generation. Attached Figure Description

[0025] Exemplary embodiments of the present invention will now be described with reference to the following accompanying drawings, wherein:

[0026] Figure 1 This is a perspective view of a massager according to an exemplary embodiment of the present invention;

[0027] Figure 2 yes Figure 1 A partial exploded perspective view of the massager shown;

[0028] Figure 3 yes Figure 1 A partial perspective view of the massager shown illustrates the connection between the vibration device and the massager body;

[0029] Figure 4 yes Figure 1 Another partial perspective view of the massager shows the specific construction of the lower part of the vibration device;

[0030] Figure 5 yes Figure 1 A perspective view of the vibration device of the massager shown.

[0031] Figure 6 yes Figure 1 A partial exploded perspective view of the massager shown;

[0032] Figure 7 yes Figure 1 A cross-sectional view of the vibration device portion of the massager shown.

[0033] Figure 8 (A) and Figure 8(B) is a front view and a side view of an exemplary flexible bushing.

[0034] List of reference numerals in the attached diagram:

[0035] 100: Massager 110: Massager Main Body

[0036] 111: Outer shell 112: Inner shell

[0037] 113: Support part; 114: Second through hole

[0038] 120: Vibration device; 121: Base

[0039] 122: Vibration device body 123: Rotary shaft mounting section

[0040] 124: First through hole; 125: Rotating shaft

[0041] 126: Flexible bushing; 127: Clearance hole

[0042] 130: Wearing and fixing structure; 140: Elastic suspension component

[0043] 150: Pressure plate; 151: Screw Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and one or more specific embodiments.

[0045] It should be understood that in this specification, terms such as "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "clockwise," and "counterclockwise" indicate the orientation, direction, or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention 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, unless otherwise specifically stated herein.

[0046] The prefixes "first" and "second" in technical features are only used to distinguish different individuals of the same type of technical features, and do not imply that they are important or in any particular order. Depending on the specific implementation, they may have different structures.

[0047] Figures 1 to 7 A preferred embodiment of the massager according to the present invention is shown.

[0048] like Figure 1As shown, the massager 100 is a vibrating massager, including a massager body 110 and a vibration device 120 supported by the massager body 110. In embodiments of the present invention, the massager body 110 may include a mating outer shell 111 and an inner shell 112, forming a receiving space within them, but is not limited to this. Depending on functional needs, the massager body 110 may contain circuit boards, batteries, sensors, light sources, etc. (not shown in the figure). The vibration device 120 is supported by the massager body 110 and may be powered by the massager body 110 or by an external circuit. The massager 100 can be used to massage various parts of the human body, such as the waist, back, legs, arms, neck, head, etc. According to embodiments of the present invention, the massager 100 may also include a wearable fixing structure 130 connected to the massager body 120. The wearable fixing structure 130 is used to fix or bind the electronic product 100 to a specific part of the human body, such as the arm, leg, wrist or head, and it can be in various forms, such as a hoop, elastic band or adjustable buckle or adhesive fastener. Figure 1 The image shows an adjustable Velcro-type wear fastening structure 130 connected to both ends of the massager body 110.

[0049] Figures 2 to 5 The connection method between the vibration device 120 and the massager body 110 according to an exemplary embodiment of the present invention is shown.

[0050] As shown in the figure, the vibration device 120 includes a base 121 and a vibration device body 122. The vibration device body 122 may house components such as a vibration motor (not shown). The base 121 has a first through hole 124 through which the rotating shaft 125 passes. The massager body 110 includes a support portion 113, which has a second through hole 114 through which the rotating shaft 125 passes. The massager 100 according to the present invention also includes a flexible bushing 116 sleeved on the rotating shaft 125, the flexible bushing being installed in either the first through hole 124 or the second through hole 114.

[0051] By fitting a flexible bushing 116 onto the rotating shaft 125 and positioning the flexible bushing 116 in the first through hole 124 or the second through hole 114, shock absorption can be provided between the vibration device 120 and the massager body 110, thereby reducing resonance transmission.

[0052] Those skilled in the art will readily understand that, in different embodiments, the flexible bushing 116 may be provided only in the first through hole 124 or the second through hole 114, or simultaneously in the first through hole 124 and the second through hole 114 (for example, multiple flexible bushings may be provided, or a flexible bushing with a longer axial length may be provided).

[0053] In the illustrated embodiment, the base 121 includes a bottom shell and a pivot mounting portion 123 protruding from the bottom surface of the bottom shell, and the support portion 113 includes a pair of brackets, with the pivot mounting portion 123 positioned between the pair of brackets.

[0054] Those skilled in the art will readily understand that, in other embodiments not shown, the positions of the rotating shaft mounting portion and the bracket can be interchanged; that is, the rotating shaft mounting portion can be disposed on the massager body 110, and the pair of bracket housings can be disposed on the base 121. Furthermore, the rotating shaft mounting portion may not be limited to one; for example, it can be configured as a pair of rotating shaft mounting portions corresponding to a pair of brackets.

[0055] like Figures 2 to 5 , Figure 8 As shown in (A) and 8(B), in an exemplary embodiment, the flexible bushing 126 includes a cylindrical portion 1261 located between the inner peripheral surface of the first through hole 124 and the outer peripheral surface of the rotating shaft 125, and a flange portion 1262 located between the rotating shaft mounting portion and a side bracket.

[0056] By designing the flexible bushing to have a cylindrical portion and a flange portion, and positioning the cylindrical portion between the inner circumferential surface of the first through hole and the outer circumferential surface of the rotating shaft, vibration damping can be achieved in the radial direction of the rotating shaft; since the flange portion is positioned between the rotating shaft mounting portion and the bracket, vibration damping can be achieved in the axial direction of the rotating shaft. Thus, the resonance transmission path between the vibration device and the bracket of the massager body is completely cut off.

[0057] When the first through hole is a round hole, in order to reduce the runout of the shaft in the radial direction, the outer diameter of the cylindrical part of the flexible bushing is preferably set to be equal to or slightly larger than the radius of the first through hole 124.

[0058] According to a preferred embodiment, such as Figure 8 As shown in (A) and (B), the outer peripheral surface of the cylindrical portion 1261 of the flexible bushing 126 may have multiple grooves 1263 that extend in the axial direction and are evenly distributed along the circumferential direction.

[0059] By providing multiple grooves on the outer circumferential surface of the cylindrical portion, the contact area between the cylindrical portion and the inner circumferential surface of the first through hole can be reduced, thereby helping to reduce the transmission of low-frequency vibrations. There are no particular requirements for the number, width, and depth of the grooves, but experimental testing can be conducted based on factors such as the material and size of the flexible bushing to find a relatively ideal range, which will not be elaborated here. Those skilled in the art will understand that the above-mentioned technical effects can be achieved in a similar or equivalent manner, such as providing an array of protrusions on the outer circumferential surface of the cylindrical portion, or providing spiral grooves or ridges. Relatively speaking, grooves that can be uniformly distributed and extend axially on the outer circumferential surface are easier to manufacture.

[0060] According to another preferred embodiment, such as Figure 8 As shown in (A) and (B), a plurality of protrusions 1264 are uniformly provided on the surface of the flange portion 1262 opposite to the shaft mounting portion 123, which abut against the shaft mounting portion 123. In the illustrated embodiment, the protrusions 1264 are dot-shaped protrusions uniformly distributed in the circumferential direction on the axial end face of the flange portion 1262. In other embodiments not shown, the protrusions 1264 may also be radial ridges extending in the radial direction on the axial end face of the flange portion 1262.

[0061] By providing multiple protrusions on the axial end face of the flange portion opposite to the rotating shaft mounting portion, the axial contact area between the flexible bushing and the bracket can be reduced, thereby helping to reduce the transmission of low-frequency vibrations from the vibration device to the massager body.

[0062] The massager according to the present invention is intended to provide vibration massage to different parts of different human bodies. However, since different parts of the human body (e.g., arms, thighs, calves, neck, head, etc.) have different sizes and skin surface shapes and curvatures, it is advantageous that the vibration device of the massager can change direction to follow the shape and curvature of the skin of different human body parts, thereby better conforming to the human skin and applying a better vibration massage effect.

[0063] In the aforementioned embodiment, the vibration device 120 is rotatably connected to the support of the massager body 110 via a rotating shaft 125, thus enabling it to rotate around the shaft. Figure 3 In the coordinate system shown, the X-axis represents the axial direction of the rotating shaft 125; the Y-axis represents the direction in which the support 113 extends, which is perpendicular to the X-axis; and the Z-axis represents the direction perpendicular to the bottom surface of the vibration device 120. In a preferred embodiment, it is also desirable that the vibration device 120 can rotate appropriately around the Y-axis to better conform to the skin of different parts of the human body.

[0064] To achieve the above objectives, according to a preferred embodiment, such as Figure 5 As shown, the cross-section of the first through hole 124 is set to be racetrack-shaped or elliptical, wherein the major axis of the cross-section of the first through hole 124 is perpendicular to the bottom surface of the bottom shell of the vibration device, and the outer diameter of the cylindrical portion 1261 of the flexible bushing 126 is the same as the minor axis length of the cross-section of the first through hole 124.

[0065] In this way, the swing of the flexible bushing 126 in the short axis direction of the first through hole 124 can be limited, while leaving swing space for the flexible bushing 126 and the rotating shaft 125 in the long axis direction of the first through hole 124 without hindering their swing. When the surface of the human skin to be massaged is tilted relative to the top surface of the vibration device 120 in its normal state, the base 121 of the vibration device 120 can be held at the top of the first through hole 124 (i.e., the end near the base) at one end, while the other end tilts in the Z-axis direction, so that the base 121 rotates around the Y-axis as a whole. In addition, corresponding clearance holes 127 can be formed on the bottom shell of the base 121 to increase the maximum rotation angle of the base.

[0066] According to another embodiment, such as Figure 2 , 4 As shown in Figure 5, the massager 100 may include two identical but oppositely arranged flexible bushings. One flexible bushing is configured as described above, and the other flexible bushing may include a cylindrical portion located between the inner circumferential surface of the first through hole 124 and the outer circumferential surface of the rotating shaft 125, and a flange portion located between the rotating shaft mounting portion 124 and the other side bracket. By symmetrically arranging the two flexible bushings, shock-absorbing flange portions can be provided at both axial ends of the rotating shaft mounting portion 123, and installation is convenient.

[0067] In the prior art, massagers with movable massage heads (e.g., massage chairs, massage cushions, etc.) typically have a soft pad covering the outside of the massage head (e.g., usually made of materials such as leather, artificial leather, or silicone). The soft pad is not fixedly connected to the massage head, so the massage head will strike or rub the soft pad from below, thereby producing some unpleasant noise and resonance.

[0068] According to the massager of the present invention, since the vibration device 120 can adjust its angle according to the shape and angle of the skin, it is advantageous to apply appropriate restraint to it to prevent it from swaying randomly. It is also necessary to prevent the vibration device from transmitting vibrations from the other end to the massager body.

[0069] To achieve the above objectives, in one embodiment of the massager of the present invention, such as Figure 6 and Figure 7 As shown, the massager 100 also includes an elastic suspension member 140, which is mounted to the top of the vibration device 120, and the outer edge of the elastic suspension member 140 is connected to the massager body 110. By adding the elastic suspension member, it is possible to prevent the vibration device 120 from transmitting vibrations to the massager body through its top.

[0070] In order to enhance the fixation between the elastic suspension component 140 and the vibration device 120, the massager according to the present invention does not use the edge-locking fixation method commonly used in the prior art for elastic suspension components.

[0071] In a preferred embodiment, such as Figure 6 and 7 As shown, the massager 100 also includes a pressure plate 150 and screws 151. The middle part of the elastic suspension member 140 is clamped between the vibrating device 120 and the pressure plate 150, and the pressure plate 150 and the elastic suspension member 140 are fixed to the vibrating device 120 by the screws 151. Specifically, threaded holes can be provided on the top ends of the pressure plate 150, the elastic suspension member 140, and the vibrating device 120, so that the screws 151 pass through the threaded holes in the pressure plate 150 and the elastic suspension member 140 and are fastened into the threaded holes at the top end of the vibrating device 120. The number of threaded holes and screws is not limited to one, and multiple screws can be used. In addition, in order to prevent the ends of the screws from protruding from the pressure plate 150, the threaded holes on the pressure plate 150 can be countersunk holes.

[0072] It should be noted that although preferred embodiments of the present invention have been described by way of example in the foregoing description, those skilled in the art will readily conceive of various modifications or variations to the embodiments disclosed herein, or obvious combinations or substitutions of the technical features, based on the teachings of the present invention. Therefore, the scope of protection of the present invention should not be limited to the specific embodiments disclosed herein. The scope of protection of the present invention should be determined based on the technical solutions defined in the claims.

Claims

1. A massager, comprising a massager body and a vibration device, characterized in that, The vibration device includes a base, the base having a first through hole for a rotating shaft to pass through; The massager body includes a support portion, and the support portion is provided with a second through hole for the rotating shaft to pass through; The massager also includes a flexible bushing sleeved on the rotating shaft, the flexible bushing sleeve being installed in the first through hole or the second through hole.

2. The massager according to claim 1, characterized in that, The base of the vibration device includes a bottom shell and a rotating shaft mounting portion protruding from the bottom surface of the bottom shell; The support includes a first bracket and a second bracket, and the rotating shaft mounting part is disposed between the first bracket and the second bracket.

3. The massager according to claim 2, characterized in that, The flexible bushing includes a first bushing, which includes a first cylindrical portion located between the inner circumferential surface of the first through hole and the outer circumferential surface of the rotating shaft, and a first flange portion located between the rotating shaft mounting portion and the first bracket.

4. The massager according to claim 3, characterized in that, Multiple grooves extending in the axial direction are evenly distributed along the circumferential direction on the outer peripheral surface of the first cylindrical part.

5. The massager according to claim 3, characterized in that, The first flange portion has a plurality of protrusions that abut against the rotating shaft mounting portion on its surface opposite to the rotating shaft mounting portion.

6. The massager according to claim 5, characterized in that, The protrusions are dot-shaped protrusions.

7. The massager according to claim 3, characterized in that, The cross-section of the first through hole is racetrack-shaped or elliptical, the major axis of the cross-section of the first through hole is perpendicular to the bottom surface of the bottom shell of the vibration device, and the outer diameter of the first cylindrical part is the same as the minor axis of the cross-section of the first through hole.

8. The massager according to claim 3, characterized in that, The flexible bushing also includes a second bushing, which includes a second cylindrical portion located between the inner circumferential surface of the second through hole and the outer circumferential surface of the rotating shaft, and a second flange portion located between the rotating shaft mounting portion and the second bracket.

9. The massager according to any one of claims 3 to 8, characterized in that, The massager also includes an elastic suspension component, which is mounted on the top of the vibration device, and the outer edge of the elastic suspension component is connected to the massager body.

10. The massager according to claim 9, characterized in that, The massager also includes: A pressure plate, wherein the middle portion of the elastic suspension member is clamped between the vibration device and the pressure plate; and Screws secure the pressure plate and the elastic suspension member to the vibration device.

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