MASSAGE PIN FOR SKIN BLOOD CIRCULATION PROMOTER AND COUPLING METHOD THEREOF

Abstract

A massage pin for skin blood circulation promoters has a lower end to/from which a silver conductor having stable electrical resistance is coupled or separated by a user of a skin blood circulation promoter, as needed. The massage pin includes: a coupling portion formed at an upper end of the massage pin and press-fitted into a circuit board disposed between a main body and a cover of a blood circulation promoter, the coupling portion being formed of a conductive rubber. An exposed portion extends from a lower end of the coupling portion and is exposed outside through a massage pin-passage hole formed through the cover. The exposed portion has a downwardly tapered connection portion extending from a lower end thereof and includes a silver conductor detachably coupled to the connection portion. The conductor has a reception portion open at an upper portion thereof.

Claims

1. A massage pin for skin blood circulation promoters, comprising: a coupling portion formed at an upper end of the massage pin and press-fitted into a circuit board disposed between a main body and a cover of a blood circulation promoter, the coupling portion being formed of a conductive rubber; and an exposed portion extending from a lower end of the coupling portion and exposed outside through a massage pin-passage hole formed through the cover, the exposed portion being formed of a conductive rubber, wherein the exposed portion has a downwardly tapered connection portion extending from a lower end thereof and including a silver conductor detachably coupled to the connection portion, the silver conductor having a reception portion open at an upper portion thereof, an inner diameter of the reception portion of the conductor is smaller than an outer diameter of a middle portion of the connection portion, an outer diameter of the connection portion is smaller than an outer diameter of the exposed portion, the connection portion is formed of an elastically deformable conductive rubber, a depth of the reception portion is greater than a length of the connection portion, and a chamber is defined between a lower portion of the reception portion of the conductor and a lower end of the connection portion.

2. A coupling method of a massage pin for skin blood circulation promoters, the method sequentially comprising the steps of: inserting a connection portion into a reception portion of a conductor positioned such that a center of the reception portion is aligned with a lower end of the connection portion; bringing the connection portion into contact with an inner surface of the reception portion such that a conductor is temporarily held against a middle portion of the connection portion; moving the conductor temporarily held against the middle portion of the connection portion upwardly of the connection portion; allowing an outer surface of the connecting portion to be elastically deformed, by elastic force thereof, against an inner wall of the reception portion, an inner diameter of which is smaller than an outer diameter of the connection portion, such that the connecting portion is received in the reception portion; allowing the conductor to be securely held, by elastic force thereof, against the connection portion elastically deformed and received in the reception portion; defining a chamber between a lower portion of the reception portion of the conductor and a lower end of the connecting portion by pushing the conductor toward the exposed portion with the connection portion received in the reception portion; fitting a coupling portion formed of a conductive rubber into a circuit board disposed between a main body and a cover of a skin blood circulation promoter such that the massage pin with the conductor coupled to the connection portion is secured to the circuit board; exposing an exposed portion outside by allowing the exposed portion to pass through a massage pin-passage hole formed through the cover; separating the conductor from the connection portion by pulling the conductor downwardly of the connection portion when the conductor is deformed or contaminated due to contact with skin while using the skin blood circulation promoter; and coupling a new conductor to the connection portion with the conductor separated therefrom, followed by putting the skin blood circulation promoter back into use.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0020] FIG. 1 is a perspective view of a typical skin blood circulation promoter.

[0021] FIG. 2 is a sectional view of a typical massage pin in use.

[0022] FIG. 3 is a sectional view showing placement of a massage pin for skin blood circulation promoters according to the present invention.

[0023] FIG. 4 is a perspective view of the massage pin for skin blood circulation promoters according to the present invention.

[0024] FIG. 5 is a sectional view of the massage pin for skin blood circulation promoters according to the present invention.

[0025] FIG. 6a is an enlarged sectional view of the massage pin for skin blood circulation promoters according to the present invention, with a conductor separated from a connection portion of the massage pin.

[0026] FIG. 6b is an enlarged sectional view of the massage pin for the skin blood circulation promoter according to the present invention, wherein the conductor is in the process of being coupled to the connection portion of the massage pin.

[0027] FIG. 6c is an enlarged view of the massage pin for the skin blood circulation promoter according to the present invention, with the conductor securely coupled to the connection portion of the massage pin.

DETAILED DESCRIPTION OF THE INVENTION

[0028] Embodiments of the invention will now be described in detail with reference to the accompanying drawings.

[0029] FIG. 3 is a sectional view showing placement of a massage pin for a skin blood circulation promoter according to the present invention, FIG. 4 is a perspective view of the massage pin for the skin blood circulation promoter according to the present invention, FIG. 5 is a sectional view of the massage pin for the skin blood circulation promoter according to the present invention, FIG. 6a is an enlarged sectional view of the massage pin for the skin blood circulation promoter according to the present invention, with a conductor separated from a connection portion of the massage pin, FIG. 6b is an enlarged sectional view of the massage pin for the skin blood circulation promoter according to the present invention, wherein the conductor is in the process of being coupled to the connection portion of the massage pin, and FIG. 6c is an enlarged view of the massage pin for the skin blood circulation promoter according to the present invention, with the conductor securely coupled to the connection portion of the massage pin.

[0030] Referring to FIG. 3, a massage pin for skin blood circulation promoters according to the present invention includes: a coupling portion (171) formed at an upper end of the massage pin and press-fitted into a circuit board (130) disposed between a main body (110) and a cover (120) of a blood circulation promoter (100), the coupling portion being formed of a conductive rubber; and an exposed portion (172) extending from a lower end of the coupling portion (171) and exposed outside through a massage pin-passage hole (122) formed through the cover (120).

[0031] In addition, the exposed portion (172) has a downwardly tapered connection portion (173) extending from a lower end of the exposed portion (172) and including a conductor (174) detachably coupled to the connection portion (173), the conductor (174) being formed of silver, which has stable electrical resistance.

[0032] Further, the conductor (174) has a reception portion (174a) open at an upper portion thereof, wherein an inner diameter of the reception portion (174a) is smaller than an outer diameter of a middle portion of the connection portion (173) and an outer diameter of the connection portion (173) is smaller than an outer diameter of the exposed portion (172).

[0033] The connection portion (173) is formed of an elastically deformable conductive rubber, and a depth of the reception portion (174a) is greater than a length of the connection portion (173).

[0034] According to the present invention, first, the connection portion (173) is inserted into the reception portion (174a) of the conductor (174) positioned such that a lower end of the connection portion (173) is aligned with a center of the reception portion (174a), as shown in FIG. 6.

[0035] Then, the connection portion (173) is brought into contact with an inner surface of the reception portion (174a) such that the conductor (174) is temporarily held against the middle portion of the connection portion (173).

[0036] Then, the conductor (174) temporarily held against the middle portion of the connection portion (173) is moved upwardly of the connection portion (173) such that an outer surface of the connection portion (173) is elastically deformed, by elastic force thereof, against an inner wall of the reception portion (174a), the inner diameter of which is smaller than the outer diameter of the connection portion (173), to allow the connection portion (173) to be received in the reception portion (174a). After the connection unit (173) is elastically deformed and received in the reception portion (174a), the conductor (174) is securely held against the connection portion (173) by elastic force thereof.

[0037] As described above, the depth of the receiving portion (174a) is greater than the length of the connection portion (173). Accordingly, when the conductor (174) is pushed toward the exposed portion (172) with the connection portion (173) received in the reception portion (174a), a chamber (180) is defined between a lower portion of the reception portion (174a) of the conductor (174) and the lower end of the connection portion (173). As a result, when the conductor (174) is exposed to impact upon contacting the skin, impact energy applied to the conductor (174) can be effectively absorbed by the chamber (180) and can be dispersed widely through the exposed portion (172).

[0038] After coupling the conductor (174) to the connection portion (173) as described above, the coupling portion (171) formed of the conductive rubber is fitted into the circuit board (130) disposed between the main body (110) and the cover (120) such that the massage pin (170) with the conductor (174) coupled to the connection portion (173) is secured to the circuit board (130), followed by exposing the exposed portion (172) outside by allowing the exposed portion (172) to pass through the massage pin-passage hole (122) formed through the cover (120).

[0039] Accordingly, when an operation switch (not shown) is operated with a main switch (150) in the “On” position, electric current is delivered from a battery (B) to the connection portion (173) of the massage pin (170) and then delivered to the skin through the conductor (174). As a result, the skin vibrates due to the electric current delivered through the conductor 174, thereby increasing blood flow through the skin, such as the scalp, while promoting cell metabolism. As a result, tiny blood-carrying capillaries can be activated, thereby inhibiting appearance of gray hairs and hair loss.

[0040] When the conductor (174) of the massage pin (170) is deformed or contaminated due to contact with the skin while using the blood circulation promoter (100), the conductor (174) is pulled downwardly of the connection portion (173) to be separated from the connection portion (173). Then, a new conductor (174) is coupled to the connection portion (173) with the used conductor (174) removed therefrom, followed by putting the skin blood circulation promoter (100) back into use.

REFERENCE NUMERALS FOR THE DRAWINGS

[0041] 170: Massage pin [0042] 171: Coupling portion [0043] 172: Exposed portion [0044] 170: Connection portion [0045] 174: Conductor [0046] 174a : Reception portion [0047] 180: Chamber