KR102557418B1 - Skin cleansing device utilizing eccentric rotational movement - Google Patents

Abstract

Disclosed is a skin cleansing device that provides a new feeling of use to a user by rotating and moving a cleansing unit. The skin cleansing device is located on one side of the housing 10 and is formed on a moving plate 22 that can move in a lateral direction of the skin cleansing device and an upper portion of the moving plate 22, and is in contact with the user's skin A mobile cleansing unit 20 including a skin cleansing unit 24 that cleans the skin; A flexible connection part 30 connecting the housing 10 and the movable cleansing part 20 and extending and contracting in a direction perpendicular to a coupling direction of the housing 10 and the movable cleansing part 20; a driving motor 40 mounted on the housing 10; And one end is coupled to the driving shaft 42 of the driving motor 40, and according to the driving of the driving motor 40, a predetermined radius R around the driving shaft 42 of the driving motor 40 A rotating crank arm 52 and a driving pin having one end coupled to the other end of the crank arm 52 and the other end rotatably coupled to the moving plate 22 of the moving cleansing unit 20 ( 54) and an eccentric rotation drive unit 50 including a.

Description

Skin cleansing device utilizing eccentric rotational movement {Skin cleansing device utilizing eccentric rotational movement}

The present invention relates to a skin cleansing device, and more particularly, to a skin cleansing device that gives a user a new feeling of use by rotating and moving a cleansing unit eccentrically.

Skin care is an act of applying cosmetics or cleansing products to the skin or removing foreign substances from the skin to clean and beautifully manage the skin. For skin care, recently, a method of uniformly applying a cleaning product to the skin or cleaning the skin using an electric skin cleansing device having a brush that rotates or vibrates has been used. For example, Korean Patent Publication No. 10-2017-0099518 and Utility Model Registration No. 20-0489176 disclose a skin cleansing device that cleans or massages the skin by rotating a contact unit equipped with a brush that contacts the skin. . In addition, Korean Patent Registration No. 10-2324257 discloses a skin cleansing device that supplies ultrasonic vibration to a user by vibrating a brush unit using a vibration motor or vibrating an ultrasonic head using an ultrasonic vibrator. However, in the existing electric skin cleansing device, since the cleansing part performs only a simple rotation or up and down vibration, the contact pattern between the cleansing part and the skin is monotonous, and the feeling of use is not good.

Korean Patent Publication No. 10-2017-0099518 Republic of Korea Utility Model Registration No. 20-0489176 Republic of Korea Patent Registration No. 10-2324257

An object of the present invention is to provide a skin cleansing device that can improve the user's satisfaction by giving the user a feeling similar to hand washing by using a novel eccentric rotation movement method.

Another object of the present invention is to provide a skin cleansing device that gives a user a new feeling of use by rotating and moving the cleansing unit eccentrically.

In order to achieve the above object, the present invention is located on one side of the housing 10, is formed on the moving plate 22, which can move in the lateral direction of the skin cleansing device and the moving plate 22, the user A mobile cleansing unit 20 including a skin cleansing unit 24 that contacts the skin of the skin and cleans the skin; A flexible connection part 30 connecting the housing 10 and the movable cleansing part 20 and extending and contracting in a direction perpendicular to a coupling direction of the housing 10 and the movable cleansing part 20; a driving motor 40 mounted on the housing 10; And one end is coupled to the driving shaft 42 of the driving motor 40, and according to the driving of the driving motor 40, a predetermined radius R around the driving shaft 42 of the driving motor 40 A rotating crank arm 52 and a driving pin having one end coupled to the other end of the crank arm 52 and the other end rotatably coupled to the moving plate 22 of the moving cleansing unit 20 ( 54), and when the driving motor 40 is driven, the driving pin 54 and the moving cleansing part 20 coupled to the driving pin 54 move to a predetermined radius (R ) to orbitally move together along the circumferential trajectory of, to provide a skin cleansing device.

The skin cleansing device according to the present invention, by using a new eccentric rotational movement method, can give a user a feeling similar to hand washing to improve the user's satisfaction and give the user a new feeling of use.

1 and 2 are an external perspective view and cross-sectional view of a skin cleansing device according to an embodiment of the present invention, respectively.
Figures 3 and 4, in the skin cleansing device according to an embodiment of the present invention, a perspective view and a cross-sectional view of the internal structure showing the coupling relationship of the driving motor, the eccentric rotary driving unit and the movable cleansing unit.
5 is a view showing moving positions of a driving shaft of a driving motor, a driving pin, and a movable cleansing part according to rotation of the driving motor according to the present invention.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail. In the accompanying drawings, for convenience of explanation, some components are shown larger or smaller than actual ones. In addition, in the description of the present invention, detailed descriptions of well-known general-purpose functions or configurations have been omitted.

1 and 2 are an external perspective view and a cross-sectional view of a skin cleansing device according to an embodiment of the present invention, respectively. As shown in FIGS. 1 and 2, the skin cleansing device according to the present invention includes a housing 10, a movable cleansing unit 20, a flexible connection unit 30, a drive motor 40 and an eccentric rotation drive unit 50 includes The housing 10 may be provided in a substantially cylindrical shape so that the user can hold and use the skin cleansing device by hand, and there is a drive motor 40, an eccentric rotation drive unit 50, a battery (not shown), etc. has a space to accommodate The housing 10 may have a form in which one side to which the movable cleansing unit 20 is coupled is open and the other side is closed, and may be made of a hard synthetic resin such as plastic, a synthetic resin having a predetermined elasticity such as silicone, rubber, metal, etc. It may be made of a normal material.

The movable cleansing unit 20 is located on one side of the housing 10, and may have, for example, a cross-sectional shape substantially similar to that of the housing 10 so as to cover an open side of the housing 10, and a flexible connection portion. It can be fixed to the open side end of the housing 10 through (30). The flexible connection part 30 can be extended and contracted in a direction perpendicular to the coupling direction of the housing 10 and the movable cleansing part 20, that is, in a lateral direction of the skin cleansing device. Since the flexible connection part 30 extends and contracts in the lateral direction of the skin cleansing device, when a predetermined force is applied to the movable cleansing part 20 in the lateral direction, the movable cleansing part 20 moves the housing 10 can move in a lateral direction relative to The flexible connection part 30 may be made of an elastic material such as silicone or rubber, or may have a wrinkled structure or a folded structure as shown in FIGS. 1 and 2 so as to be stretched and contracted. If necessary, the flexible connection part 30 can be extended and contracted also in the coupling direction of the movable cleansing part 20 and the housing 10, that is, in the longitudinal direction of the skin cleansing device.

Referring to FIG. 2 , the movable cleansing part 20 includes a movable plate 22 movable in a lateral direction of the skin cleansing device and a skin cleansing part 24 formed on an upper portion of the movable plate 22 . The skin cleansing unit 24 is a part that contacts the user's skin and cleans the skin by friction, and as shown in FIGS. 1 and 2, it is located on the side of the skin cleansing device and cleans the user's skin. It may include a side cleansing part 24a having a predetermined height and an upper cleansing part 24b located on the upper surface of the skin cleansing device. In the present invention, since the movable cleansing part 20 moves in an eccentric rotation, when the user's skin contacts the side cleansing part 24a and the upper cleansing part 24b, respectively, the side cleansing part 24a delivered to the user ) and the movements of the upper cleansing part 24b are different from each other. In this respect, the moving cleansing unit 20 will be described again below together with the eccentric rotational movement. In addition, protrusions 26, brushes, sponges, cleaning towels, cleaning pads, etc. may be further formed on the surface of the skin cleansing portion 24 to improve the skin cleaning effect. The skin cleansing part 24 rubs the skin while moving along with the moving plate 22 to perform a skin cleansing function. The combination of the skin cleansing part 24 and the moving plate 22 may be performed by fixed adhesion using a conventional adhesive, adhesion using an elastic adhesive such as silicone, or physical fitting.

3 and 4 are a perspective view and a cross-sectional view of an internal structure showing a coupling relationship between a drive motor 40, an eccentric rotation drive unit 50 and a movable cleansing unit 20 in the skin cleansing device according to an embodiment of the present invention. . 2 to 4, the eccentric rotation drive unit 50 includes a crank arm 52 and a driving pin 54. One end of the crank arm 52 is coupled to the driving shaft 42 of the driving motor 40, and according to the rotation of the driving motor 40, the crank arm 52 moves the driving shaft 42 of the driving motor 40. ) is rotated at a predetermined radius (R). One end of the drive pin 54 is coupled to the other end of the crank arm 52, and the other end of the drive pin 54 is coupled to the moving plate 22 of the movable cleansing unit 20. Therefore, according to the rotation of the driving motor 40, the driving pin 54 and the moving plate 22 together with the crank arm 52 also have a predetermined radius (R) around the driving shaft 42 of the driving motor 40. ) to rotate

In the present invention, at least one of the coupling between the drive pin 54 and the crank arm 52 and the coupling between the drive pin 54 and the moving plate 22, preferably both, the drive pin 54 is the crank It is rotatably coupled with respect to the arm 52 and the moving plate 22 . For example, as shown in FIG. 4, in the crank arm 52 and the moving plate 22, a hole 52a slightly larger than the diameter of the driving pin 54, that is, the driving pin 54 is rotatably large. , 22a) is formed, and a drive pin 54 is rotatably fitted into the holes 52a, 22a. Therefore, even if the driving pin 54 rotates at a fixed position, the moving plate 22 does not rotate, and when the position of the driving pin 54 moves, the position of the moving plate 22 moves accordingly. That is, the drive pin 54 drives or guides the movement of the moving plate 22 . Since the driving pin 54 is not fixedly coupled to the crank arm 52 and the moving plate 22, as shown in FIG. In order to prevent separation from, separation prevention members 54a and 54b such as locking jaws may be further mounted on the upper and lower ends of the driving pin 54.

Referring back to FIG. 2 , since the edge of the movable cleansing part 20 is coupled to the housing 10 through the flexible connection part 30, it is coupled to the movable cleansing part 20, that is, the movable plate 22. When the driving pin 54 is moved, the moving cleansing part 20 does not rotate, and the position of the moving cleansing part 20 also moves along the moving trajectory of the driving pin 54. The drive pin 54 matches the positions of the crank arm 52 and the moving plate 22, that is, the crank arm 52 has a predetermined radius R around the drive shaft 42 of the motor 40. It serves to drive the moving plate 22 along the revolution movement trajectory. FIG. 5 is a view showing the moving positions of the drive shaft 42, the drive pin 54, and the movable cleansing unit 20 of the drive motor 40 according to rotation of the drive motor 40. Referring to FIG. When the driving motor 40 is driven, as shown in FIG. 5, the driving pin 54 rotates with a predetermined radius R around the driving shaft 42 of the driving motor 40, and the driving pin ( The moving cleansing part 20 coupled to 54) also moves (or revolves) together with the driving pin 54. At this time, since the edge of the movable cleansing part 20 is coupled to the housing 10 through the flexible connection part 30, the movable cleansing part 20 does not rotate, that is, the direction of the movable cleansing part 20 (For example, the direction indicated by ▲ in FIG. 5) does not change, and the position of the movable cleansing part 20 moves along the circumferential trajectory of the radius R together with the driving pin 54.

In this way, when the mobile cleansing unit 20 does not rotate (ie, rotate) and moves along the circumferential trajectory of the radius R around the driving shaft 42 of the motor 40, the user is concerned about the skin. It feels like the contacted movement cleansing unit 20 moves or vibrates in a circle along the skin surface, and in this specification, such a movement is referred to as 'eccentric rotational movement'. Therefore, when the driving motor 40 fixed to the housing 10 rotates, the driving force of the driving motor 40 is transmitted through the eccentric rotation driving unit 50, and the moving plate 22, that is, the moving cleansing unit 20 ) is moved by eccentric rotation, and the movable cleansing unit 20 cleans the skin while moving in a horizontal direction with respect to the skin. The driving motor 40 can rotate forward (clockwise rotation) and reverse rotation (counterclockwise rotation), and may alternately perform forward rotation and reverse rotation at predetermined cycles. On the other hand, as shown in Figure 1, in the skin cleansing device of the present invention, when the mobile cleansing unit 20 includes a side cleansing unit 24a and an upper cleansing unit 24b having a predetermined height, the user When the skin of the user is in contact with the upper cleansing part (24b), the user feels that the upper cleansing part (24b) revolves around the driving shaft 42, and when the user's skin is in contact with the side cleansing part (24a). , Since the user may feel as if the side cleansing part 24a rolls in one direction and moves, the movements of the side cleansing part 24a and the upper cleansing part 24b transmitted to the user are different from each other.

The driving pin 54 may be coupled to the moving plate 22 at a predetermined distance from the center of the moving plate 22, that is, eccentric, or may be coupled to the center of the moving plate 22. As shown in FIG. 2 , when the driving pins 54 are spaced apart from the center of the moving plate 22 by a predetermined distance, the centers of the moving cleansing unit 20 and the housing 10 may coincide. On the other hand, when the driving pin 54 is coupled to the center of the moving plate 22, it is difficult to match the center of the moving cleansing unit 20 and the housing 10. The revolution radius R of the mobile cleansing unit 20 is preferably 0.05 to 1 times the radius of the mobile cleansing unit 20, for example, 0.1 to 0.6 times, more preferably 0.1 to 0.5 times, more preferably It is preferably 0.2 to 0.4 times. Here, if the revolution radius R of the movable cleansing unit 20 is too small, there is a concern that a sufficient cleaning effect may not be obtained because the movement of the movable cleansing unit 20 is small. On the other hand, if the revolution radius R of the movable cleansing unit 20 is too large, the feeling of use is reduced, and the range of movement of the movable cleansing unit 20 is excessively out of the housing 10, and the housing 10 and the flexible connection unit There is a possibility that the arrangement of (30) becomes difficult.

In addition, the skin cleansing device according to another embodiment of the present invention, as shown in FIG. 2 , may further include a conventional vibrating unit 60 that generates vertical vibration of the mobile cleansing unit 20 . The vibration unit 60 may generate vibration by the rotation of an eccentric weight having a predetermined weight, that is, by the rotational inertia of the eccentric weight, or may generate ultrasonic vibration (eg, patent registration). 10-2324257). In this way, the mobile cleansing unit 20 is moved horizontally with respect to the skin using the driving motor 40 and the eccentric rotation driving unit 50, and at the same time, using the normal vibrating unit 60 vertically with respect to the skin. When vibration is given in the direction, the user can obtain various feelings of use by various motion methods applied to the skin.

As described above, in the present invention, the driving motor 40 and the moving cleansing unit 20 are connected by the crank arm 52 to perform eccentric rotational movement, and the driving pin 54 and the crank arm 52 In the coupling and / or coupling of the driving pin 54 and the moving plate 22, the driving pin 54 is rotatably, that is, a structure that surrounds the driving pin 54 at a slight distance from the driving pin 54 By designing, similar to the action of washing by hand, the movable cleansing unit 20 performs an eccentric rotational movement. In addition, according to the present invention, by separating the housing 10 and the movable cleansing unit 20, and integrating the housing 10 and the movable cleansing unit 20 with a flexible connection unit 30 such as silicon from the outside, skin cleansing In this case, it is possible to improve convenience of use by preventing liquids, including water, from seeping into the device.

Although the present invention has been described with reference to the accompanying drawings and exemplary embodiments, the present invention is not limited to the contents shown in the drawings and the above-described embodiments. Although reference numerals are indicated to aid understanding in the following claims, the scope of the following claims is not limited to the content shown in the reference numerals and drawings, but is comprehensive to include all modifications, equivalent configurations and functions of the exemplary embodiments. should be interpreted as

Claims (7)

Located on one side of the housing 10, a movable plate 22 that can move in the lateral direction of the skin cleansing device and is formed on the upper part of the movable plate 22 to clean the skin by contacting the user's skin. a mobile cleansing unit 20 comprising unit 24;
A flexible connection part 30 that connects the housing 10 and the movable cleansing part 20 and can be extended and contracted in a direction perpendicular to a coupling direction between the housing 10 and the movable cleansing part 20;
a driving motor 40 mounted on the housing 10; and
One end is coupled to the driving shaft 42 of the driving motor 40, and rotates at a predetermined radius R around the driving shaft 42 of the driving motor 40 according to the driving of the driving motor 40. A crank arm 52 and a driving pin 54 having one end coupled to the other end of the crank arm 52 and the other end rotatably coupled to the moving plate 22 of the moving cleansing unit 20. Including an eccentric rotation drive unit 50 comprising a),
At least one of the coupling between the driving pin 54 and the crank arm 52 and the coupling between the driving pin 54 and the moving plate 22 is such that the driving pin 54 is connected to the crank arm 52 and the moving plate 22. It is rotatably coupled with respect to,
When the driving motor 40 is driven, the driving pin 54 and the moving cleansing unit 20 coupled to the driving pin 54 orbitally move together along a circumferential trajectory of a predetermined radius R, skin cleansing Device. The method of claim 1, wherein the skin cleansing part 24 is located on the side of the skin cleansing device and is located on the upper surface of the skin cleansing device and the side cleansing part 24a having a predetermined height to clean the user's skin. That is, skin cleansing device comprising an upper cleansing portion (24b) to do. The skin cleansing device according to claim 1, wherein the flexible connection part 30 can be extended and contracted in a direction in which the movable cleansing part 20 and the housing 10 are combined. The skin cleansing device according to claim 1, wherein protrusions 26 are formed on the surface of the skin cleansing part 24 to improve a skin cleansing effect. delete The skin cleansing device according to claim 1, wherein an orbital radius (R) of the mobile cleansing unit (20) is 0.1 to 0.5 times the radius of the mobile cleansing unit (20). The skin cleansing device according to claim 1, further comprising a vibration unit (60) generating up and down vibrations of the mobile cleansing unit (20).

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