JPH0233688Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to an electric nail polishing machine in which a shock absorbing part is provided at the tip of the polishing part that crushes the cuticle.

(Background of the invention) A technique disclosed in US Pat. No. 3,240,966 is known as an electric nail polishing machine that reciprocates a polishing section. As shown in FIG. 7, this nail polishing machine is constructed by attaching an abrasive part 54 to the tip of a drive shaft 53 that is reciprocally driven by a motor 51 and a cam part 52. In addition to polishing, the tip is also polished.
It is also possible to crush it by abutting against it, but in this case, the impact when the abrasive part 54 moves forward and its tip abuts against the leg skin b is painful.

(Purpose and Overview) The present invention was developed in view of the above circumstances, and the present invention is designed to reduce the impact that is applied to the cuticle when the abrasive part moves forward and its tip hits the cuticle. An object of the present invention is to provide an electric nail polishing machine that can reduce the amount of stress. To this end, the present invention provides a shock-absorbing section by providing an opening or interposing a shock-absorbing material on the inside of the tip surface of the tip made of a hard material of the abrasive section that is reciprocally driven by the reciprocating drive section. It was established. In this way, the shock that is applied to the epidermis when the distal end surface of the abrasive section abuts against the epidermis is cushioned and absorbed by the impact buffering section.

(Example) Next, an example 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 includes a cylindrical main body part 2 which also serves as a grip part, and an upward direction from the front part of this main body part 2. It consists of a tapered cover part 3 extending slightly bent toward the end, and a polishing unit 4 is attached to the lower part of the cover part 3. 5 is a slide type switch button, and when operated with the fingertip of the hand holding the main body 2, the polishing part 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. 2 and 3.

Reference numerals 6 and 7 denote a power unit comprised of a power supply battery and a motor housed in the main body 2, and 29 a conductive plate that slides integrally with the switch button 5.

10 is a reciprocating drive unit that converts the rotational motion of the power unit 7 into a reciprocating motion, 8 is a gear driven by 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 having a U-shaped cross section for fixing the gear 11 and the cam 12, and 16 is a reinforcing member for the holder 13. 18 is a drive shaft, and a rear end ring portion 20 is connected to the cam 12.
will be installed on the The drive shaft 18 is made of a flexible material such as flexible synthetic resin, and has a projection 19 projecting from the lower part of its tip.

In FIG. 3, reference numeral 21 denotes a fixed board made of a hard material that is attached to the lower part of the cover part 3. A rib 24 is protruded from the upper surface of the fixed board 21, and the upper end of the rib 24 is enlarged. By fitting the part 24a between the two wire rods 25, 25 attached to the cover part 3, the substrate 21 is removably 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 polishing unit 4 is comprised of a sliding member 22 mounted on the lower part of a fixed base plate 21, and a polishing section 23 removably mounted on the lower part of the sliding member 22. The sliding member 22 is mainly composed of a long plate body 31 made of a hard material. Reference numeral 33 denotes locking claws, two of which are protruded from the front and rear of the top surface, and which elastically engage the receiving portions 38 formed in the two openings 27 and 27 provided in the base plate 21. It will be worn. The length of the openings 27, 27 in the front-rear direction is longer than that of the locking claw 33, so that the length of the opening 2 of the locking claw 33 is longer than that of the locking claw 33.
7, 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 part of the plate body 31, which is connected to the drive shaft 18.
The protrusion 19 is engaged in the recess 34a of the locking portion 34 exposed from the rear opening 27.

The polishing section 23 mainly has an elliptical substrate 35 made of a flexible hard material such as polyacetal resin.
A polishing surface 37 is formed on the lower surface by applying an abrasive. Numerals 39, 39, and 40 are locking claws and protrusions, and this polished portion 23 is used to attach the locking claws 39, 39 and ribs 40 to the locking grooves 41, 41 formed on both sides of the sliding member 22, and the bottom surface. recessed part 4 recessed in
By elastically fitting the sliding member 2
It is slidably attached to the lower part of 2. The cover part 3 is bent upward as described above, and therefore the polishing surface 37 of the polishing part 23 attached to the cover part 3 is inclined upward at an angle θ. The distal end surface 231a of the distal end portion 231 of the polishing section 23 is a circularly curved surface so as to easily crush the cuticle, and a substantially semicircular opening 43 along the circularly curved surface is formed inside the distal end surface 231a. This opening 43 serves as a shock absorber for the abrasive part tip 231, and projects forward of the cover 3 and the sliding member 22 when it is attached to the cover 3. The polishing section 23 has a plurality of polishing surfaces 37 with different roughnesses, and by changing these as appropriate, it is possible to selectively perform rough polishing, finish polishing, etc. of the nails. .

This electric 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 motion is converted into a reciprocating motion by the drive part 10. Drive member 2 connected to drive unit 10 via drive shaft 18
2 and the polishing section 23 reciprocate in the front and rear directions. Therefore, when the surface of the nail a is polished by pressing the polishing surface 37 against the nail a, since the polishing surface 37 is inclined at an angle θ,
While holding the main body part 2, it is easy to press the polishing surface 37 against the claw a, and since the cover part 3 is tapered, it is easy to visually check the position where the polishing part 23 is applied to the claw a. The nail a can be polished. In addition, since the polishing part 23 is firmly supported from above by the covering part 3, it will not bend or wobble due to the pressing force P received from the nail side during nail polishing, and the nails will remain stable. Can be brushed.

Figures 4a and b show how the cuticle b present at the proximal end of the nail a is being crushed;
While reciprocating the polishing part 23, the tip surface 23
By poking the cuticle b with 1a, it can be crushed. In this case, during normal nail brushing or when the tip surface 231a does not touch the epidermis b, the opening 43 maintains its original shape (see figure a), but the tip surface 231a does not touch the epidermis b.
When it hits, the opening 43 elastically deforms as shown in FIG. 2b to absorb and absorb the impact, so that the cuticle b can be crushed without feeling any pain.

(Other Embodiments) Various means for forming a shock buffer at the tip of the abrasive part 23 can be considered. For example, as shown in FIG.
1 and inserting a shock absorbing material such as rubber or sponge inside the tip portion 231 to create a shock absorbing portion 44.
It may also be designed to buffer and absorb shocks applied to the cuticle. Furthermore, as shown in FIGS. 6a to 6c, receiving portions 45 and 46 are formed extending from the polishing portion main body portion 232 and the tip portion 231 separated from the main body portion 232,
These receiving parts 45 and 46 are connected via a shock absorbing part 47 made of rubber or sponge, and a space 4 is provided in the connected part.
8 and 48, it is possible to obtain cushioning properties not only in the reciprocating direction but also in the diagonal direction, as shown by arrow A in FIG. As is clear from the above embodiments, there are various ways to form an impact buffer at the tip of the abrasive part. , it is sufficient that the tip of the abrasive part can be relaxed and absorbed without losing its hardness.

(Effects of the Invention) As explained above, in the present invention, since the shock absorbing portion 43 is provided inside the distal end surface 231a of the abrasive section distal end section 231 made of a hard material, the distal end surface 231
It is possible to cushion and absorb the impact when a is pressed against the cuticle b and press the cuticle b, so that the cuticle b can be crushed without feeling any pain.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
The figure is a perspective view of the electric nail polisher, Figure 2 is a sectional view, Figure 3 is a partially exploded view, Figures 4a and b are partial plan views in use, and Figure 5 is another embodiment of the present invention. FIGS. 6a, b, and c are partial perspective views of another embodiment, and FIG. 7 is a side view of a conventional one. 1... Main body case, 10... Reciprocating drive unit, 23
...Abrasive portion, 231...Tip portion, 231a...Tip surface, 43, 44, 47...Shock buffer portion.

Claims (1)

[Scope of utility model registration request] A reciprocating drive unit 10 housed in a main body case 1;
A polishing section 2 driven reciprocally by the reciprocating drive section 10
3, at least the tip 231 of the abrasive part 23 is formed of a hard material, and the tip 231 is made of a hard material.
An electric nail polishing machine characterized in that a shock absorbing section 43 is provided inside the tip surface 231a of the electric nail polishing machine.