JPH0244525B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to an electric nail polishing machine, and more particularly to the structure of an electric nail polishing machine in which a polishing section is reciprocated.

(Background of the Invention) Electric nail polishing machines that use a motor or the like to drive a polishing section to polish the surface of nails include those that rotate the polishing section and those that reciprocate the polishing section. As a reciprocating nail polishing machine, U.S. Patent No.
A technique disclosed in No. 3240966 is known. This device is configured such that an abrasive part is inserted into the tip of a drive shaft protruding from the front surface of a spindle-shaped main body case, and the drive shaft is reciprocated back and forth by a motor or a cam part, and the abrasive surface of the abrasive part This polishes the nail by pressing it against the surface of the nail.
However, since the abrasive part of this product was cantilevered by the drive shaft, it was easy to bend or shake when the abrasive surface was pressed against the nail, and furthermore, there was a risk of breakage if it was pressed too hard against the nail. . Furthermore, since the direction in which the polishing part was inserted into the drive shaft coincided with the direction of reciprocation, there was a risk that the polishing part would fall off from the drive shaft during nail polishing. In addition, since the polished part is completely exposed without any protection, it is easily damaged by objects such as objects hitting it.Also, since the polished surface of the polished part coincides with the bottom of the main body case, it can be placed on a table or desk, etc. When placed in a cold environment, dust and the like tend to adhere to the polishing surface, reducing the polishing function. Furthermore, since an insertion hole for the drive shaft was formed at the rear end of the abrasive part, the insertion direction of the abrasive part to the drive shaft was limited to one direction; It was not possible to use it by inserting it into the drive shaft in reverse.

[Purpose and overview]

An object of the present invention is to provide an electric nail brushing machine that is easy to use. More specifically, the present invention provides an electric nail polishing machine in which the polishing part is securely attached to the main body case and can be reciprocated stably, and the polishing surface of the polishing part can be brought into reliable contact with the surface of the nail for polishing. The purpose is also to For this purpose, in the present invention, the main body case is composed of a main body part and a cover part connected to the main body part, and a power part and a drive part that converts the power of the power part into reciprocating motion are installed inside the main body case. It is stored. A polishing section is attached to the lower part of the cover section so as to be reciprocally movable and reversible. The polishing section and the driving section are connected through a transmission section such as a drive shaft, and by driving the power section, the polishing section is reciprocated in the lower part of the cover section. With this structure, the abrasive part is protected by the cover part, and the load applied to the abrasive part when it is pressed against the nail is firmly supported by the cover part, so that the abrasive part does not bend or shake. It prevents people from doing so. In addition, by attaching the abrasive part to the lower part of the cover part from below, the pressing force applied when the abrasive part is pressed against the nail acts in a direction perpendicular to the reciprocating direction of the abrasive part, that is, in the same direction as the attachment direction. This prevents the polishing part from accidentally falling off from the cover part and damaging the nails during nail polishing. Furthermore, the abrasive part is formed so that its planar shape is front and rear symmetrical, and is attached to the lower part of the cover part so as to be reciprocally movable and reversible. Even if the front end of the polishing section, that is, the part that is used most often, becomes clogged with abrasive grains falling off due to long-term use and the polishing ability decreases, by immediately reversing the polishing section, you can Since it can be used continuously and the front contour can be viewed from above, it is possible to easily check the condition of the surface to be polished and the driving status of the polishing section.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an electric nail polishing machine according to the present invention, and the main body case 1 of this nail polishing machine has a cylindrical main body part 2 which also serves as a grip part, and a stage in the front part of this main body part 2. It consists of a cover part 3 which is connected in a tapered shape, and a polishing unit 4 is installed at the bottom of the cover part 3.
is installed. The cover part 3 is formed integrally with the main body part 2 or separately. Reference numeral 5 designates a sliding switch button, and when operated with the fingertip of the hand holding the main body 2, the polishing section of the polishing unit 4 reciprocates in the front and back direction by the drive means described later, and the claw a
Polish the surface.

Next, the detailed structure of this nail polishing machine will be explained with reference to FIGS. 2a, 2b and 3.

The main body portion 2 is composed of an upper case 2a and a lower case 2b, 2c divided into two parts. Lower case 2b
is fixed to the upper case 2a in the assembled state, but the lower case 2c is detachably attached to the rear lower side of the upper case 2a. The lower case 2c serves as a replacement lid for the power supply section 6 made of a power supply battery, and the power supply section 6 can be replaced by attaching and detaching the lower case 2c. The cover part 3 is bent upward from the main body part 2, so that the cover part 3
The polishing surface 37 of the polishing section 23 attached to the lower part of the
It is tilted upward at an angle θ. By slanting the polishing surface 37 in this way, it is easy to press the polishing surface 37 against the surface of the claw a while holding the main body 2 in the hand. Further, the cover portion 3 is tapered more than the main body portion 2. As the power supply section, a connection cord connected to an outlet may be provided instead of the battery 6. Reference numeral 7 denotes a power unit consisting of a motor, which is mounted on the lower case 2b. 19 is a rib for fixing the power unit 7.

Reference numeral 10 denotes a drive section that converts the rotational motion of the power section 7 into reciprocating motion, and the details thereof will be explained next. 8
is a gear connected to the rotating shaft 9 of the power unit 7, and 11 is a gear that meshes with the gear 8. An eccentric cam 12 is integrally formed on the upper part of this gear 11. 13 is a holder for the gear 11 and the cam 12, and the gear 11 and the cam 12 are interposed between support plates 13b and 13b protruding from the upper and lower parts of the base plate 13a, and the rotating shaft 14 is inserted therein. can be assembled.
Numerals 15 and 15 are screws for fixing the holder 13 to the front surface of the power unit 7, and 16 are support plates 13b and 13b.
This is a reinforcing member that prevents bending deformation.

18 is a drive shaft as a transmission part,
A ring portion 20 to be fitted onto the cam 12 is formed at the rear end. Reference numeral 17 denotes a spring material disposed within the ring 20, which absorbs vertical vibration of the cam 12. The drive shaft 18 is made of a flexible material such as flexible synthetic resin, and has a tip 18a bent slightly upward and a protrusion 19 protruding from its lower portion. This shaft 18 is inclined at an angle α with respect to the reciprocating direction Q of the abrasive part 23, so that the abrasive part 2
Even if an unnecessary impact is applied to the shaft 3 in the forward movement direction (for example, an impact on the cuticle of the tip of the abrasive part 23), the shaft 18 quickly deforms elastically and can absorb this impact. 29 is a conductive plate that slides integrally with the switch button 5.

Reference numeral 21 denotes a fixed board made of a hard material and attached to the lower part of the cover part 3, and a rib 24 is provided protruding from the upper surface of the fixed board 21.
By fitting the enlarged upper end portion 24a between the two wire rods 25, 25 attached to the cover part 3, the board 21 is detachably attached to the lower part of the cover part 3. Reference numeral 26 denotes a positioning rib, which is fitted into the tip groove portion 28 of the cover portion 3. The above polishing unit 4
is a sliding member 2 attached to the lower surface of the fixed board 21.
2, and a polishing section 23 that is detachably attached to the lower surface of the sliding member 22. The sliding member 22 is mainly composed of an oblong plate 31 made of a hard material. Reference numeral 33 denotes two locking claws protruding from the front and rear of the upper surface of the fixed board 2.
It is engaged with a receiving part 38 formed in two openings 27, 27 opened in 1. The length of the openings 27, 27 in the front-rear direction is longer than that of the locking claw 33,
Therefore, in a state where the locking claws 33 are locked to the openings 27, 27, the sliding member 22 can slide in the front-back direction, and the sliding movement is guided by the receiving portion 38. Reference numeral 34 denotes a locking portion protruding from the rear of the plate body 31, and the protrusion 19 of the drive shaft 18 is engaged with the recess 34a of the locking portion 34. 45 is the plate 31
The rib protrudes from the end of the upper surface of the fixed substrate 21 and comes into contact with the bottom surface of the fixed substrate 21 .

The polishing section 23 has an oblong substrate 35 made of a hard material.
A polishing surface 37 is formed by coating the lower surface with an abrasive. A wall portion 36 that fits into the sliding member 22 is protruded from the periphery of the polishing portion 23, and its front and rear ends form a circularly curved surface portion 23a. The shape of the polishing part 23 is symmetrical in the front and back, and can be attached to the sliding member 22 with the front and back reversed. Reference numeral 39 denotes a locking pawl, and numeral 40 denotes a protrusion. The polished portion 23 elastically fits the locking pawl 39 and the protrusion 40 into the thick part 41 and recess 42 of the sliding member 22, thereby preventing the sliding movement. It is detachably attached to the lower part of the member 22. With the polishing unit 4 attached to the cover 3, the polishing part 23 protrudes forward of the cover 3 so that the tip of the polishing unit 4 can push in the liner b. By making at least a part of the outline of the polishing part 23 visible from the outside of the cover part 3 in this way, in addition to the above-mentioned effect of pressing the linen skin, the state of contact between the nail and the polishing part 23 can be visually confirmed. Nail polishing work can be performed accurately. The polishing section 23 is provided with a plurality of polishing surfaces 37 having different degrees of roughness, and by changing these as appropriate, rough polishing and finishing polishing of the nails can be performed.

This nail polishing machine has the above-mentioned configuration, and when the main body part 2 is held and the switch button 5 is operated, the power part 7 is driven and its rotational movement is caused by the drive part 1.
0 into a reciprocating motion, the drive shaft 18
The polishing section 23 connected to the drive section 10 through the abrasive section 23 reciprocates in the front and rear direction. If the polishing surface 37 is then pressed against the claw a, the surface of the claw a will be polished. When the abrasive part 23 is strongly pressed against the claw a, the abrasive part 23
Since the stroke in the reciprocating direction is absorbed by the elasticity of the flexible drive shaft 18, the claw a can be ground softly. Also, the pressing force P (third
(see figure) is a direction perpendicular to the reciprocating direction of the polishing surface 37, that is, a direction in which the polishing part 23 is pressed toward the cover part 3, so that the polishing part 23 will not fall off during nail polishing. In addition, even if the polishing part 23 is strongly pressed against the nail a, the polishing part 23 is firmly supported by the cover part 3, and the polishing part 23 does not bend or shake unnecessarily, allowing stable nail polishing. can. In addition, since the polished surface 37 is bent upward at an angle θ, it is easy to press against the claw a, and the cover portion 3
Since it has a tapered shape, the state of polishing the nails by the polishing part 23 can be easily seen from above.

FIG. 4 shows how the cuticle b existing at the proximal end of the claw a is being crushed, and while the polishing part 23 is reciprocating as described above, the covering part 3 is being crushed.
By pressing the forwardly projecting circular curved surface portion 23a against the cuticle b, the cuticle b can be crushed. In this case, the impact when the front end surface of the abrasive part 23 hits the cuticle b is absorbed by the elasticity of the drive shaft 18, so that the cuticle b can be crushed without feeling much pain.

〔Effect of the invention〕

As explained above, according to the present invention, the main body part 2 which also serves as a grip part and the cover part 3 are connected to each other to form the main body case 1, and the power part 7 is provided inside the main body case 1.
and a polishing section 2 that houses a drive section 10 that converts the power of the power section 7 into reciprocating motion, and is provided with an abrasive surface 37.
3, the planar shape of which is front and back symmetrical, and the abrasive part 23 is attached to the lower part of the cover part 3 from below in a reciprocating and reversible manner, and in the attached state, at least the front contour of the abrasive part 23 is can be seen from above the cover part 3, and the polishing part 23
Since the drive unit 10 and the drive unit 10 are connected via the electric unit 18, the polishing unit 23 can be firmly supported by the cover 3 and pressed against the nail a, and the polishing unit 23 can be pressed against the nail a while polishing the nail. There is no fear that the nails will fall off or shake from the cover part 3, and nail polishing can be performed stably.

In particular, by attaching and detaching the abrasive part 23 to the lower part of the cover part 3 from below, the pressing force applied when the abrasive part 23 is pressed against the nail can be applied in a direction perpendicular to the reciprocating direction, i.e. Because it acts in the same direction as the mounting direction, the polishing part 2 is removed during nail polishing.
3 is prevented from accidentally falling off from the cover part 3.

Furthermore, the abrasive part 23 is formed so that its planar shape is front and rear symmetrical, and is attached to the lower part of the cover part so as to be reciprocally movable and reversible. Because it can be viewed from above, even if the front end of the polishing section, that is, the part that is used most frequently, becomes clogged or the polishing ability decreases due to falling off abrasive grains, etc. due to long-term use, it is possible to immediately turn the polishing section over. can be installed,
Since the front contour viewed from the cover when installed inverted has the same shape, it can be used continuously under the same conditions as before inversion, and since the front contour can be viewed from above, the condition of the surface to be polished is The operating status of the polishing section can be easily checked, and even inexperienced users can use it freely.

Furthermore, since the polishing part 23 is mounted so that at least a part of its outline can be seen from the outside of the cover part 3, the polishing part 23 is not completely hidden by the cover part 3, and the nail polishing work can be done accurately. can be done.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
The figure is a perspective view of the electric nail polisher, FIGS. 2a and 2b are exploded views, FIG. 3 is a sectional view, and FIG. 4 is a partial side view. DESCRIPTION OF SYMBOLS 1... Main body case, 2... Main body part, 3... Cover part, 7... Power part, 10... Drive part, 18... Transmission part, 22... Sliding member, 23... Polishing part, 23
a... Circular curved surface portion, 37... Polished surface.

Claims (1)

[Claims] 1 A main body case 1 is formed by connecting a main body part 2 which also serves as a grip part and a cover part 3, and a power part 7 is provided inside the main body case 1 and the power of the power part 7 is converted into reciprocating motion. A polishing part 23 that accommodates the drive part 10 and has a polishing surface 37 is formed in a planar shape symmetrically in the front and back, and the polishing part 23 is reciprocatably and reversibly attached to the lower part of the cover part 3 from below. installed so that at least the front contour of the polishing part 23 can be seen from above the cover part 3 in the installed state, and
An electric nail polishing machine characterized in that the polishing section 23 and the drive section 10 are connected via an electric section 18.