JP2018503437A - Mounting system for swing motor in personal care equipment - Google Patents

Abstract

A swing motor mounting system for a personal care device that reduces vibration transmitted to the device handle is disclosed. In order to reduce the vibration of the handle, the swing motor is suspended in the personal care device via a suspension system.

Description

Overview This overview is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

  In accordance with aspects of the present disclosure, a personal care device is provided. The apparatus includes a handle defining a longitudinal axis, a set of upper flexible mounts disposed within the handle, a set of lower flexible mounts disposed within the handle, and the upper flexible mount. And a swing motor suspended to balance between the set of lower flexible mounts, the swing motor defining a swing shaft.

  In accordance with another aspect of the present disclosure, a personal care device is provided. The apparatus includes a handle having a handle body and a handle top, the handle defining a longitudinal axis, and a swing motor disposed between the handle body and the handle top. The swing motor is configured to give a swing motion around a swing axis parallel to the vertical axis to the target. The apparatus includes a first anti-vibration device, a second anti-vibration device and a third anti-vibration device mounted between the swing motor and the handle top, and a fourth anti-vibration device mounted between the swing motor and the handle body. A device and a fifth vibration isolator are also provided. In one embodiment, the first vibration isolation device, the second vibration isolation device, the third vibration isolation device, the fourth vibration isolation device, and the fifth vibration isolation device are configured to suspend a swing motor in the handle. Yes. In this or other embodiments, the first anti-vibration device, the second anti-vibration device, the third anti-vibration device, the fourth anti-vibration device, and the fifth anti-vibration device, the preload force swings from each anti-vibration device It is configured in the handle to join the motor. In these or other embodiments, the first vibration isolation device, the second vibration isolation device, the third vibration isolation device, the fourth vibration isolation device, and the fifth vibration isolation device are disposed in the handle and are parallel to the swing axis. The total preload force is zero, and the preload force around the axis perpendicular to the swing axis is zero.

  In accordance with another aspect of the present disclosure, a personal care device is provided. The apparatus includes a handle and a swing motor, the handle defining a longitudinal axis, and a plurality of upper flexible mounts disposed within the handle and a plurality of lower portions disposed within the handle. Each upper flexible mount includes an elastomeric vibration isolator, each lower flexible mount includes an elastomeric vibration isolator, and the swing motor includes a plurality of upper flexible anti-vibration devices. Suspended between the mount and a plurality of lower flexible mounts. In one embodiment, the upper flexible mount and the lower flexible mount are configured to apply a preload force to the swing motor.

DESCRIPTION OF THE DRAWINGS Many aspects of the foregoing aspects and disclosed subject matter will be more readily understood and at the same time understood by reference to the following detailed description, taken in conjunction with the accompanying drawings.

FIG. 1 is an exploded isometric view of one embodiment of a personal care device according to aspects of the present disclosure. FIG. 2 is an exploded top isometric view of one embodiment of the handle of the personal care device of FIG. FIG. 3 is an exploded bottom isometric view of one embodiment of the handle of the personal care device of FIG. FIG. 4 is a functional block diagram of some components of the personal care device of FIG. FIG. 5 is a plan view of one embodiment of a swing motor suitable for use in the personal care device of FIG. 6 is a bottom view of the swing motor of FIG. FIG. 7 is an exploded view of one embodiment of an upper motor mounting assembly in accordance with aspects of the present disclosure. FIG. 8 is an exploded view of one embodiment of a lower motor mounting assembly in accordance with aspects of the present disclosure. FIG. 9 is a force diagram illustrating the forces due to the upper motor mounting assembly of FIG. 7 and the lower motor mounting assembly of FIG. 8 in one embodiment of the swing motor.

DETAILED DESCRIPTION The detailed description is set forth below with reference to the accompanying drawings, wherein like reference numerals designate like elements. This is intended as a description of various embodiments of the disclosed subject matter and is not intended to represent the only embodiment. Each embodiment described in this disclosure is provided merely as an example or illustration and should not be construed as preferred or advantageous over other embodiments. The illustrative examples provided herein are not intended to be exhaustive or to limit the claimed subject matter to the precise form disclosed.

  The present disclosure relates generally to vibration reduction in personal care devices. Roughly described, personal care devices typically use motors that produce the action / action of specific action components to produce the desired functional results. Examples of such devices include electric skin brushes, electric toothbrushes and shavers, among others. In some currently available personal care devices, the motor generates a rocking (front and back) action rather than just a rotating action, due to the action generated by the resonant electromagnetic motor. An example of such an oscillating motor is disclosed in US Pat. No. 7,786,626 and is also commercially available as a Clarisonic® brand product (eg, Aria or Mia Personal Skin Care product). The disclosure of U.S. Pat. No. 7,786,626 and Clarisonic® brand products are hereby expressly incorporated by reference.

  In such a device as described above, the swing motor is mounted directly on the handle of the device. The vibration generated by the swing motor is transmitted to the handle through the mount. These vibrations can be at least noisy and, in some cases, very uncomfortable for the user, especially in devices with a small form factor. In addition, such vibration can vary in performance depending on how firmly the user holds the handle.

  The following discussion provides an example of a swing motor mounting system for a personal care device that reduces vibrations transmitted to the handle of the device. In these examples, the oscillating motor generates an appropriate oscillating motion for the associated working part. Working parts of personal care devices include, but are not limited to, cleaning brushes, composition applicators, release brushes, release disks, toothbrushes, shaving heads and the like. In order to reduce the vibration of the handle, the swing motor of one embodiment is suspended in the personal care device via a suspension system. One embodiment of the suspension system uses a compressed elastomeric vibration isolator that suspends a swing motor in the handle. In one embodiment, the anti-vibration device is positioned in alignment with the swing motor in the housing. In this embodiment, the suspension system is configured to compress the top and bottom of the oscillating motor equally, and is configured to provide zero moment about an axis perpendicular to the oscillating axis of the working part. As described above, the swing motor according to the embodiment is suspended in the handle while being balanced. In one embodiment, the suspension system is preloaded when the personal care device components are assembled. In many examples described herein, the rocking action generated by the rocking motor may be rotation, translation, or a combination thereof.

  In the following description, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments of the present disclosure. However, it will be apparent to those skilled in the art that many embodiments of the present disclosure can be practiced without some or all of the specific details. In some instances, well known process steps have not been described in detail in order not to unnecessarily obscure various aspects of the present disclosure. Further, it will be appreciated that embodiments of the present disclosure may use any combination of features described herein.

  FIG. 1 is a partially exploded isometric view of one exemplary embodiment of a personal care device, generally indicated as 20, formed in accordance with aspects of the present disclosure. As shown in FIG. 1, the personal care device 20 includes a handle 24 that is detachably connected to an action component (for example, a brush head 28). FIG. 2 is an exploded view of one embodiment of the handle 24 shown in FIG. As shown in FIG. 2, the handle 24 includes a handle body 30, a swing motor 32, and a handle top 36. A working part mount 40 is also provided and is connected to a swing motor 32 for operation. In one embodiment, the handle top 36 and the working component mount 40 are configured to be detachably connected to the brush head 28. Although the working component is shown as a brush head in the embodiment of FIG. 1, it can alternatively comprise a composition applicator, release disk, shaving head, and the like. The working component of one embodiment is oriented coaxially with the handle 24 when installed. The personal care device 20 also includes a vibration reduction mounting system (sometimes referred to herein as a suspension system) for suspending a swing motor 32 within the handle 24, as will be described in detail later.

  The handle body 30 is substantially cylindrical in one embodiment and houses the operating structure of the device. As shown in the block diagram of FIG. 4, the operating structure of one embodiment includes a swing motor 32, a power storage source (e.g., battery 44), and a drive circuit 48, and the drive circuit 48 is stored in the battery 44. The electric power is configured and adjusted to selectively generate an alternating current with a selected operation cycle, and is arranged to pass the alternating current through the oscillating motor 32. In one embodiment, the drive circuit 48 can include an on / off button 50 (see FIG. 1), optionally with a power regulation or mode connected to a control circuit (e.g., a programmed microcontroller or processor). A control button 52 (see FIG. 1) can be provided, and is configured to control the flow of alternating current through the oscillating motor 32.

  Referring to FIGS. 2, 5 and 6, although one embodiment of the swing motor 32 is shown, embodiments of the personal care device 20 can involve other configurations of the swing motor. As shown in FIGS. 2, 5 and 6, the swing motor 32 includes a motor base 60, a stator 64 and an armature assembly 66. A stator 64 (sometimes referred to as an electromagnet or field magnet) is mounted against movement between the armature assembly 66 and the motor base 60. In the illustrated embodiment, the stator 64 has an E-core having a central leg (hidden in FIG. 5) around which the stator coil 74 is wound and two outer legs (hidden in FIG. 5). With 70. The coil 74 is connected to an alternating current source (eg, a drive circuit 48 that operates on battery power). In operation, the coil 74 generates a magnetic field whose polarity reverses when an alternating current passes through the coil 74 and travels around the central leg.

  Referring to FIG. 5, the armature assembly 66 includes a somewhat curved armature 80 that is mounted for movement about an axis 82 (see FIG. 2). The armature 80 includes a back iron 84 made of a ferromagnetic material. Two or more magnets 86 and 88 spaced apart are magnetically connected to the back iron 84 while being magnetized in the radial direction. The magnets 86 and 88 are arranged so that the north pole of one magnet 86 faces outward while the north pole of the other magnet 88 faces inward. However, it goes without saying that the orientation may be reversed as long as the magnetic poles point in opposite directions. In the embodiment shown, the armature 80 has two surfaces that are arranged at an angle to each other on which two or more magnets 86 and 88 are mounted. When assembled, the position and orientation of magnets 86 and 88 are perpendicular to the surface of the magnet so that a line passing through the midpoint of the magnet surface passes through axis 82.

  The armature assembly 66 also includes an armature mount 90. The armature mount 90 is fixed to the handle body 30 (see FIG. 1) via the motor base 60, thereby providing a mechanical reference for the swing system. As shown in FIG. 5, the armature 80 is connected to the armature mount 90 by a pair of mounting members (shown as flexure members 92 and 94) in a crossed configuration. In this regard, the flexure members 92 and 94 overlap at the shaft 82. There is a functional rotation axis on which the armature 80 swings. In one embodiment, the armature mount 90 has a distal end that extends outwardly from the distal end of the cross member 106 and is located near the outer leg of the E-core 70, as shown in FIG. Ending expansion members 100 and 102 are provided. The bottoms of the expansion members 100 and 102 form a joint surface that can be cooperatively fitted with the top peripheral surface of the motor base 60. In one embodiment, the motor base 60 (see FIG. 6) is fastened to the armature assembly 66, particularly via fasteners (eg, screws or press fit). When the stator 64 is fitted, the stator 64 is fixed and mounted therebetween.

  The armature assembly 66 further includes a mounting arm 116 that extends from the side of the armature 80. As can be seen from FIGS. 2 and 5, the mounting arm 116 extends outwardly from the armature 80 and then extends horizontally (perpendicular to the axis of rotation of the working part) until it reaches the shaft 82. The mounting arm 116 again extends outward in a substantially coaxial direction with the shaft 82. A working component (eg, brush head 28 (see FIG. 1)) is mounted on the free end of mounting arm 116. Therefore, the configuration of the mounting arm 116 is such that the working component swings around the axis 82 which is a line parallel to the longitudinal axis of the personal care device. In some embodiments, the position / orientation of the mounting arm 116 can be changed, for example, by moving the tip position away from the axis 82, thereby changing the rotational / parallel motion combination of the working parts. Can be created.

  During assembly, the swing motor 32 is mounted in the handle 24. In one embodiment, the swing motor 32 is mounted between the handle top 36 and the handle bottom 30. In this regard, the armature mount 90 of one embodiment is formed with a first set of motor mounts shown in FIGS. 2 and 5 as three mounting posts 120A-120C. The mounting column 120A extends upward from the cross member 106, and the mounting columns 120B and 120C extend upward from the ends of the expansion members 100 and 102, respectively. In one embodiment, the mounting posts 120A-120C are in the form of cylindrical bosses whose tops are coplanar. In one embodiment, the mounting column 120A is on the X axis of the oscillating motor 32, and the mounting columns 120B and 120C are arranged equidistant from the X axis. The benefits of doing so are described in more detail below. At the time of assembly, the top of the swing motor 32 is attached to the handle top 36 via the mounting columns 120A-120C (details will be described later).

  Similarly, one or more motor mounts are associated with the motor base 60. In one embodiment shown in FIGS. 3 and 6, the one or more motor mounts include a spline ring 128 that is disposed coaxially with the shaft 82 and extends downwardly from the motor base 60. During assembly, the bottom of the swing motor 32 of one embodiment is attached to the handle body 30 via the handle mounting structure 140 (details will be described later).

  As already briefly mentioned, an aspect of the present disclosure is to provide a technique or method that reduces vibrations transmitted to the handle. In this regard, to reduce the transmission of vibrations to the handle 24, the swing motor 32 of one embodiment is mounted in a suspended manner by a suspension system (sometimes referred to herein as a vibration isolation system). The As shown in FIG. 7, the suspension system includes a set of vibration isolation devices 150 disposed between the armature mount 90 and the handle top 36 (not shown in FIG. 7). In one embodiment, the anti-vibration devices 150A-150C are a set of bushes, each configured to be disposed on a mounting post 120A-120C. The bushing in one embodiment is composed of an elastomer cylinder, to name a few, for example, rubber, synthetic rubber, or thermoplastic elastomer (TPE) (eg, polyurethane, polyamide, copolyester and polyolefin blends). It is formed. In one embodiment, the vibration isolators 150B and 150C are the same size and smaller than the vibration isolator 150A. The bushing and mounting column are housed in cups 154A-154C that are fixedly connected to the top of the handle and are configured to cooperate. The anti-vibration device 150, the mounting post 120, and the cup 154 together form the upper motor mounting assembly. In one embodiment, the upper motor mounting assembly is installed in a motor envelope. In operation, the anti-vibration device 150 allows relative movement between the swing motor 32 and the handle top 36, which allows a first set of flexible mounts, sometimes referred to as the upper flexible mount. It is formed.

  In the illustrated embodiment, the cup 154 is integrally formed by individual components. Alternatively, the cup 154 is integrally formed on the handle top or otherwise secured to the handle top. While the embodiment of FIG. 7 shows a mounting post 120 formed by an armature mount 90 and a cup 154 formed or associated with the top of the handle, in other embodiments, the cooperative structure of the upper flexible mount is shown. Needless to say, the position can be reversed.

  As shown in FIG. 8, the suspension system includes a second set of vibration isolation devices 160 disposed between the motor base 60 and the handle body 30 (not shown in FIG. 8). In one embodiment, anti-vibration devices 160A and 160B are configured as elastomeric bushes that are connected via a leg 162 to a central hub 164 that defines a spline bore 166. Elastomeric bushing, leg 162 and central hub 164 are integrally formed in the embodiment shown and are formed from a thermoplastic elastomer (TPE) (eg, those described above) or natural or synthetic rubber. In one embodiment, the vibration isolator 150 (see FIG. 7) and the vibration isolator 160 are made of the same material.

  In the embodiment shown in FIG. 8, the elastomeric bushing is configured to be held through cylindrical mounting posts 168A and 168B so that the spline bore 166 engages the spline ring 128 of the motor base 60 (see FIG. 3). It is configured. In one embodiment, the central bore of the vibration isolation device 160B is larger than the central bore of the vibration isolation device 160A. In the illustrated embodiment, the mounting posts 168A and 168B are formed by the handle mounting structure 140 and are located on the X axis. Anti-vibration device 160 and posts 168A and 168B together form the lower motor mounting assembly. In another embodiment, the anti-vibration device 160, posts 168A and 168B and the spline ring 128 and spline bore 166 spline interfaces form the lower motor mounting assembly. In yet another embodiment, the handle mounting structure 140 includes a spline ring 180 that is coaxial with the shaft 82 and configured to mate with the spline bore 166. In one embodiment, the lower motor mounting assembly is installed in a motor envelope. In operation, the anti-vibration device 160 allows relative movement between the swing motor 32 and the handle body 30, thereby forming a second set of flexible mounts, sometimes referred to as the lower flexible mount. Is done. In one embodiment, the spline bore 166 also allows relative movement between the swing motor 32 and the handle body 30.

  In one embodiment, the handle mounting structure 140 is formed integrally with the handle body 30. Alternatively, the handle mounting structure 140 of the illustrated embodiment is a separate component that is removably mounted to the handle body 30 via press fit or other suitable fastening technique (eg, a central king screw). The handle mounting structure of one embodiment includes an alignment column 170 that can partially serve as a press fit or, in another embodiment, can serve as an anti-rotation characteristic due to the resistance torque of the king screw. Although the embodiment of FIG. 8 shows mounting posts 168A and 168B formed by the handle mounting structure 140, in other embodiments, the mounting posts are formed integrally or otherwise a motor base. Needless to say, a fixed connection can be made.

  One assembly method is described herein in connection with FIGS. 2, 3, 7, and 8. In one embodiment, the handle 24 is assembled by placing a swing motor 32 between the upper motor mounting assembly and the lower motor mounting assembly. Upper and lower screw mounts 172 and 176 (see FIGS. 2, 3 and 8) are used to pull the handle top 36 together with the handle mounting structure 140 of the handle body 30 using screws. Once pulled together and connected, until the handle mounting structure 140 is aligned and supported by the handle body 30 via alignment posts 170 formed on the handle body 30 and their cooperating components (not shown), The swing motor 32, the handle top 36, and the handle mounting structure 140 are lowered to the handle body 30. Once aligned and supported, the handle body 30 is secured to the handle mounting structure 140 by, for example, a central king screw.

When assembled, the first and second sets of flexible mounts are preloaded in one embodiment. In one embodiment, the preload applied to the flexible mount is selected to provide an appropriate resistance when the user attaches the working component 28 to the working component mount 40 downward. Preloading the flexible mount can be accomplished by various configurations and / or techniques. For example, the anti-vibration devices 150 and 160 of the embodiment show the preload force of each flexible joint (generally indicated as F ₁ -F ₅₎ when the handle top 36 is pulled together by the mounting structure 140. (See FIG. 9)) is provided to the oscillating motor 32. In one embodiment, the anti-vibration devices 150 and 160 are larger in size along the machine's Z-axis (i.e., the height of each anti-vibration device is greater than its associated cup or mounting post), so the handle top 36 And the armature mount 90 are compressed, and the vibration isolator 160 between the handle body 30 and the motor base 60 (via the mounting structure 140) is compressed. The compression of the vibration isolation devices 150A-150C and the vibration isolation devices 160A and 160B generate preload forces F ₁ -F ₅ respectively. The force in the present embodiment is a result of the spring constant of the vibration isolator and the compression amount (that is, the compression distance). In one embodiment, the compression distance of each vibration isolator is the same.

In one embodiment, the swing motor 32 is suspended in a balanced manner between the upper motor mounting assembly and the lower motor mounting assembly. In order to balance the swing motor 32, the upper flexible mount and the lower flexible mount are configured so that the preload forces applied to the swing motor 32 are both canceled out. In other words, the upper flexible mount and the lower flexible mount are zero when the sum of the forces F ₁ -F ₅ (see FIG. 9) against the oscillating motor 32 along the Z axis is assembled (Σ _Z = 0). In the embodiment shown in FIG. 9, the upper flexible mount applies forces F ₁ -F ₃ downward to the oscillating motor 32, while the lower flexible mount applies forces F ₄ and F to the oscillating motor 32. Give ₅ upwards. As described above, the suspension system according to the embodiment is configured to satisfy the following expression (1).
(1) F ₁ + F ₂ + F ₃ = F ₄ + F ₅

Needless to say, in one embodiment, the material or dimensions can be selected for each anti-vibration device that changes the magnitude of the force F ₁ -F _{5 in} order to satisfy equation (1) above. In one embodiment, the compression distance of each vibration isolator is the same. In another embodiment, the vibration isolator is composed of the same material, but the size of the vibration isolator is different. In still another embodiment, the size of the vibration isolator is the same, but the vibration isolator is composed of various materials. In one embodiment, the anti-vibration devices 150B and 150C are configured such that F ₂ and F ₃ are the same size.

In addition to satisfying equation (1) above, the positions of the flexible mount and lower flexible mount are generated by the force F ₁ -F ₅ about the X axis to balance the swing motor 32 The moments generated by the forces F ₁ -F ₅ around the Y axis are also canceled. In other words, the position of the upper and lower flexible mounts is such that when the handle is assembled, the sum of the moments perpendicular to the Z axis of the motor 32 (the swing axis of the working part) is zero (ΣM _X = 0 and ΣM _Y = 0).

In the embodiment shown in FIGS. 7 and 9, the upper flexible mount formed by the vibration isolators 150B and 150C is installed at an equal distance (Y ₁ = Y ₂ ) from the X axis of the swing motor 32. In the present embodiment, the upper flexible mount formed by the vibration isolation device 150A and the lower flexible mount formed by the vibration isolation devices 160A and 160B exist on the X axis of the swing motor 32. Thus, the moment does not occur around the X axis if F ₂ and F ₃ are equal when the handle is assembled.

In another embodiment, when F ₂ and F ₃ are not equal, the distance from the X axis is changed to satisfy the following equation (2).
(2) (F ₂ ) (Y ₂ ) = (F ₃ ) (Y ₃ )

Furthermore, in the embodiment shown in FIG. 9, the upper flexible mounts formed by the vibration isolators 150A, 150B and 150C are respectively installed at distances X1, X2 and X3 from the Y axis of the swing motor. In the present embodiment, the lower flexible mounts formed by the vibration isolation devices 160A and 160B are installed at distances X4 and X5 from the Y axis of the swing motor 32, respectively. As described above, the suspension system according to the embodiment is configured so that the forces F ₂ and F ₃ are equal and the above formula (1) and the following formulas (3) and (4) are satisfied.
(3) (F ₂ ) (X ₂ ) + (F ₃ ) (X ₃ )-(F ₁ ) (X ₁ ) = (F ₄ ) (X ₄ )-(F ₅ ) (X ₅ )
(4) X ₂ = X ₃

Of course, in another embodiment, the anti-vibration device is configured such that the forces F ₂ and F ₃ are not equal. In the present embodiment, the suspension system is configured to satisfy the above formula (1) and the above formula (3).

  For the purposes of this disclosure, “top”, “bottom”, “top”, “bottom”, “vertical”, “horizontal”, “inward”, “outward”, “inside”, “outside”, “front” The terms “after”, “after” and the like should not be construed as limiting the scope of the claimed subject matter. Further, “comprising”, “including” or “having” and variations thereof herein are meant to include the words and equivalents recited above and additional phrases. Unless otherwise limited, the terms “connection”, “coupling” and “attachment” and variations thereof herein are widely used and include direct and indirect connections, couplings and attachments.

  The principles, exemplary embodiments, and modes of operation of the present disclosure are described in the above description. However, aspects of the present disclosure that are intended to be protected should not be construed as limited to the particular embodiments disclosed. Further, the embodiments described herein are to be regarded as illustrative rather than restrictive. It goes without saying that variations and modifications can be made by others and equivalents without departing from the spirit of the present disclosure. Therefore, it is manifest that all such modifications, changes and equivalents are included within the spirit and scope of the present disclosure as set forth in the claims.

Claims (20)

A handle defining a vertical axis;
A set of upper flexible mounts disposed within the handle;
A set of lower flexible mounts disposed within the handle;
A swing motor suspended to balance between the set of upper flexible mounts and the set of lower flexible mounts;
The swing motor is a personal care device that defines a swing axis. The lower flexible mount set includes a plurality of the lower flexible mounts,
The set of upper flexible mounts includes a plurality of the upper flexible mounts,
2. The personal care device according to claim 1, wherein the number of the lower flexible mounts is different from the number of the upper flexible mounts.   3. The personal care device according to claim 2, wherein the number of the lower flexible mounts is smaller than the number of the upper flexible mounts.   4. The personal care device according to claim 1, wherein each of the upper flexible mount and each of the lower flexible mount is configured to have a preload force applied thereto.   The lower flexible mount and the upper flexible mount are cooperatively arranged in a handle, and a total moment generated by a preload force perpendicular to the swing shaft is about zero, and the swing shaft 5. The personal care device of claim 4, wherein the personal care device is configured such that the total preload force along is zero.   6. The personal care device according to claim 1, wherein each of the upper flexible mount and each of the lower flexible mount includes a compressible elastomer vibration isolator.   7. The personal care device according to claim 1, wherein the lower flexible mount exists on an X axis of the swing motor, and the X axis is perpendicular to a vertical axis of the handle. The upper flexible mount comprises three vibration isolation devices,
One anti-vibration device exists on the X axis of the swing motor, while the other two anti-vibration devices are arranged equidistant from each other on opposite sides with respect to the X axis,
8. The personal care device according to claim 1, wherein the X axis is perpendicular to a vertical axis of the handle. The set of upper flexible mounts comprises three upper flexible mounts,
9. A personal care device according to any preceding claim, wherein the set of lower flexible mounts comprises two flexible mounts. A handle having a handle body and a handle top and defining a longitudinal axis;
A swing motor positioned between the handle body and the handle top;
A swing motor configured to impart swing motion to the object about a swing axis parallel to the longitudinal axis;
A first anti-vibration device, a second anti-vibration device and a third anti-vibration device attached between the swing motor and the handle top;
A fourth anti-vibration device and a fifth anti-vibration device attached between the swing motor and the handle body,
The first vibration isolation device, the second vibration isolation device, the third vibration isolation device, the fourth vibration isolation device, and the fifth vibration isolation device are configured to suspend the swing motor in the handle. And
The first anti-vibration device, the second anti-vibration device, the third anti-vibration device, the fourth anti-vibration device and the fifth anti-vibration device are configured to apply a preload force from each anti-vibration device to the swing motor. Configured in the handle to add,
The first anti-vibration device, the second anti-vibration device, the third anti-vibration device, the fourth anti-vibration device and the fifth anti-vibration device are arranged in the handle and are parallel to the swing axis. A personal care device configured such that the total load force is zero and the total moment generated by the preload force about an axis perpendicular to the swing axis is zero.   11. A personal care device according to claim 10, wherein each vibration isolator is configured to be compressed by an equal amount when the handle is assembled.   12. The personal care device according to claim 10, wherein the first vibration isolation device and the second vibration isolation device have different sizes.   13. The personal care device according to claim 10, wherein the fourth vibration isolator and the fifth vibration isolator have different sizes. A handle defining a vertical axis;
A plurality of upper flexible mounts disposed within the handle;
A plurality of lower flexible mounts disposed within the handle;
A swing motor suspended between the plurality of upper flexible mounts and the plurality of lower flexible mounts;
Each upper flexible mount comprises an elastomer vibration isolator,
Each lower flexible mount is equipped with an elastomer vibration isolator,
The upper flexible mount and the lower flexible mount are personal care devices configured to apply a preload force to the swing motor.   15. The personal care device according to claim 14, wherein the oscillating motor is suspended to be balanced.   16. The personal care device according to claim 14, wherein the number of the plurality of upper flexible mounts is different from the number of the plurality of lower flexible mounts.   17. The personal care device according to any one of claims 14 to 16, wherein the plurality of upper flexible mounts are larger than the plurality of lower flexible mounts.   18. A personal care according to any of claims 14 to 17, wherein each of the upper flexible mount and each of the lower flexible mount is configured to be compressed by an equal amount when the handle is assembled. machine. Each upper flexible mount of the plurality of upper flexible mounts comprises an elastomer bush;
19. A personal care device according to any of claims 14 to 18, wherein at least two of the elastomeric bushes are different in size. Each lower flexible mount of the plurality of lower flexible mounts comprises an elastomer bush,
20. A personal care device according to any of claims 14 to 19, wherein at least two of the elastomeric bushings are different in size.