JPH0759209B2 - Electric nail polisher - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric nail polisher, and more particularly, to a structure in which a polishing part reciprocates, and a structure in which the reciprocating motion of the polishing part by abrasive powder is difficult to be obstructed.

[0002]

2. Description of the Related Art A technique disclosed in U.S. Pat. No. 3,240,966 is known as a type in which a polishing portion is reciprocated by a motor or the like. As shown in FIG. 7, this device is configured by inserting a polishing portion 54 into the tip portion of a drive shaft 53 driven by a motor 51 and a cam portion 52.

[0003]

However, since the polishing portion 54 is supported on the shaft 53 in a cantilevered manner, it is easy to bend or fall off when it is pressed against a nail and used. It was spicy.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and a sliding member 22 that reciprocates is provided on a fixed portion 21 provided at a lower portion of a main body portion 2 which also serves as a grip portion. In the electric nail polisher in which the polishing portion 23 is attached to the sliding member 22, the fixed portion 21 is provided with the recess receiving portion 38 along the reciprocating direction of the sliding member 22, and the recess receiving portion 38 is provided. A locking claw 33 protruding from the sliding member 22 is engaged with the portion 38 slidably in the reciprocating direction, and the fixed portion 21 and the sliding member 22 are engaged.
A rib 45 is provided between and to support the two separately.

[0005]

According to the present invention, the sliding member 22 into which the polishing piece 23 is inserted has the protruding locking claw 33 pressed against the concave receiving portion 38 of the fixed portion 21 when the polishing piece 23 is used. It can be attached simply by inserting and engaging in the same direction as the direction, and it is easy to assemble, and since the pressing force at the time of use and the inserting direction for engagement match, it can be attached to the locking claw 33. Since no excessive force is applied during use, the mounting structure can be simplified and miniaturized, and unnecessary deformation and damage are unlikely to occur.

Moreover, the recess receiving portion 38 with which the locking claw 33 is engaged.
Is provided along the reciprocating direction, and the locking claw 3
Since 3 is inserted from below, abrasive powder is easily discharged even if it intrudes temporarily, and unnecessary load on reciprocating motion can be reduced.

Further, a rib 45 is provided between the fixed portion 21 and the sliding member 22 so as to support them in a separated state, and the sliding contact area is made small, so that an opportunity for the polishing powder to enter the nail is obtained. was reduced as low as possible Gensa not stick suppressing sliding resistance of abrasive powder, such as a protein-based, though abrasive powder therebetween aggression
Even if it is inserted and intervened, the pressing force on the nail during use is
Since it concentrates on the small ribs 45 and acts as an exclusion force,
Sliding load will be caused by scraping out the intervening abrasive powder
Is stabilized, the reciprocating motion is smoothed, the load applied to the motor is reduced, and it can be handled and used easily.

[0008]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a perspective view of an electric nail polisher according to the present invention, in which a main body case 1 of the nail polisher has a cylindrical main body 2 also serving as a grip portion, and a front cover of the main body 2. A polishing unit 4 is attached to the lower part of the portion 3. Reference numeral 5 denotes a slide type switch button, which is operated by the fingertips of the hand holding the main body 2 to reciprocate the polishing part of the polishing unit 4 in the front-back direction by the drive means described later to polish the surface of the nail a.

Next, the detailed structure of the nail polisher will be described with reference to FIGS. 2 (a), 2 (b) and 3. The main body portion 2 is formed by mounting the two divided lower cases 2b and 2c on the lower side of the upper case 2a. Lower case 2
Although b is fixed to the upper case 2a in the assembled state, the lower case 2c is detachably attached to the lower rear side of the upper case 2a. The lower case 2c serves as a replacement lid for the power supply unit 6 including a power supply battery, and the power supply unit 6 can be replaced by attaching and detaching the lower case 2c. The covered portion 3 is bent upward from the main body portion 2 so that the polishing portion 23 of the polishing unit 4 can be easily pressed against the nail a, and thus the polishing portion 23 attached to the lower portion of the covered portion 3 is covered.
The polishing surface 37 of No. 2 is inclined upward by an angle θ.

By thus inclining the polishing surface 37, it is easy to press the polishing surface 37 against the surface of the nail a while holding the main body 2 in the hand. Further, the covered portion 3 projects from the main body portion 2 in a tapered shape. As the power supply unit, a connection cord connected to an outlet may be provided instead of the battery 6. Reference numeral 7 denotes a power unit composed of a motor, which is mounted on the lower case 2b. Reference numeral 19 is a rib for fixing the power unit.

Reference numeral 10 is a drive unit for converting the rotary motion of the power unit 7 into a reciprocating motion, the details of which will be described below. 8 is a gear connected to the rotating shaft 9 of the power unit 7, 11 is the gear 8
It is a gear that meshes with. An eccentric cam 12 is integrally formed on the top of the gear 11. Reference numeral 13 is a holder for the gear 11 and the cam 12, and the gear 11 and the cam 12 are interposed between the support plates 13b and 13b projectingly provided on the upper and lower portions of the substrate 13a, and the rotary shaft 14 is inserted and attached. Can be assembled. Reference numerals 15 and 15 are screws for fixing the holder 13 to the front surface of the power unit 7, 16 is a reinforcing member for preventing flexural deformation of the support plates 13b and 13b, and 17 is a coil spring for elastic contact.

Reference numeral 18 is a drive shaft, and a ring portion 20 fitted to the cam 12 is formed at the rear end portion thereof. The drive shaft 18 is made of a flexible material such as a flexible synthetic resin and has a tip portion 18a.
It is bent slightly upward, and a projection 19 is provided on the lower part thereof so that the drive shaft 18 is inclined at a small angle α with respect to the sliding direction Q of the polishing section 23 in the assembled state. 18b
Is a thin portion formed on the rear portion of the drive shaft 18 and imparts elasticity to the drive shaft 18 in the lengthwise direction and absorbs vertical shake. Reference numeral 18c is a shock absorbing means composed of a long hole formed in the drive shaft 18 along the length direction thereof, and as shown in FIG. 5 (b) when the tip of the polishing portion 23 hits the pelvis. In addition, the drive shaft 18 elastically deforms to absorb and absorb the impact.
Reference numeral 29 is a conductive plate that slides integrally with the switch button 5.

Reference numeral 21 denotes a fixed portion provided on the lower portion of the covered portion 3 made of a hard material, and a rib 24 is provided on the upper surface of the fixed portion 21 so as to project from the upper end of the rib 24. The fixing portion 21 is detachably attached to the lower portion of the covered portion 3 by fitting the 24a between the two wire rods 25, 25 attached to the covered portion 3. Of course, when it is not necessary to attach and detach, the fixing portion 21 may be formed integrally with the main body portion 2.
Reference numeral 26 is a positioning rib, which is the tip groove portion 2 of the covered portion 3.
8 is fitted. The polishing unit 4 comprises a sliding member 22 mounted on the lower surface of the fixed portion 21 and a polishing portion 23 removably mounted on the lower surface of the sliding member 22. The sliding member 22 is mainly composed of an elliptical plate body 31 made of a hard material.

Reference numeral 33 denotes locking claws, which are provided on the upper surface of the sliding member 22 such that two projections are provided on the front side and two on the rear side, respectively, and the sliding members are inserted into the two openings 27, 27 formed in the fixed portion 21. It is attached to a recessed receiving portion 38 formed in the reciprocating direction of 22. The length of the openings 27, 27 in the front-rear direction is longer than that of the locking claw 33.
In the state of being inserted in 27, the sliding member 22 can slide back and forth in the front-rear direction, and the sliding is guided by being engaged with the recess receiving portion 38.

Reference numeral 34 denotes a locking portion which is provided on the rear portion of the plate body 31, and the projection 19 of the drive shaft 18 is engaged with the recess 34a of the locking portion 34. A rib 45 is provided between the fixed portion 21 and the sliding member 22 so as to support them separately from each other.
Although it is in contact with the bottom surface of No. 1, it is the same if it is provided on either side. The ribs 45 reduce the sliding area, reduce the sliding load, and minimize the biting of abrasive powder, which is sticky when crushed like a protein system, and enables smooth reciprocating motion. .

The polishing part 23 is mainly composed of an elliptical substrate 35 made of a hard material, and a polishing surface 37 is formed on the lower surface thereof by applying an abrasive. A wall portion 36 that fits into the sliding member 22 is projectingly provided on the peripheral edge of the polishing portion 23, and the front end portion and the rear end portion thereof are circular curved surface portions 23a. The shape of the polishing section 23 is symmetrical in the front-rear direction and the left-right direction, and the front-rear direction can be reversed to be mounted on the sliding member 22.

Reference numeral 39 denotes a locking claw, and 40 denotes a projection. The polishing portion 23 elastically fits the locking claw 39 and the projection 40 to the thick portion 41 of the sliding member 22 and the recess 42 on the bottom surface thereof. As a result, it is detachably attached to the lower portion of the sliding member 22.
With the polishing unit 4 attached to the covered portion 3, the tip of the polishing unit 4 projects to the front of the covered portion 3 so that the scab b can be pushed.

The polishing section 23 is prepared with a plurality of polishing surfaces 37 having different roughnesses. By appropriately replacing the polishing surface, it is possible to perform roughening and finishing polishing of the nails. .

The nail polisher has the above-mentioned structure. When the main body 2 is held and the switch button 5 is operated, the power unit 7 is driven and the rotational movement thereof is converted into reciprocating movement by the driving unit 10. The polishing section 23 connected to the drive section 10 via the drive shaft 18 reciprocates in the front-rear direction. Then, if the polishing surface 37 is pressed against the nail a, the surface of the nail a is polished.

The pressing force P applied to the polishing portion 23 when the polishing portion 23 is pressed against the claw a is a direction orthogonal to the reciprocating direction Q of the polishing surface 37, that is, the polishing portion 23 is covered by the covered portion 3. This is a direction in which the polishing portion 23 is pressed to the side, and this direction coincides with the insertion direction for engaging the locking claw 33, so that the polishing portion 23 does not fall off during polishing of the nail. In addition, the polishing portion 23 is set to the nail a.
The polishing part 23 is firmly supported by the covered part 3 even if it is strongly pressed against, and the polishing part 23 is not unnecessarily bent or shaken, and stable nail polishing can be performed.

Further, since the polishing surface 37 is bent upward by the angle θ, it can be easily pressed against the nail a, and since the covered portion 3 is tapered, it is possible to see how the polishing portion 23 polishes the nail from above. It is easily visible.

FIG. 4 shows a state in which the scabbard b existing at the base end portion of the claw a is pushed in. As described above, while the polishing portion 23 is reciprocatingly moved, the circular curved surface portion 23a is used to squeeze it. By plucking the leather b, the scab b can be crushed. Here, when the drive shaft 18 retreats, the drive shaft 18 does not elastically deform in the lengthwise direction (see FIG. 5A), but the drive shaft 18 moves forward and the tip portion of the polishing portion 23 becomes blunt. When the skin b is excessively hit, the drive shaft 18 is elastically deformed by the shock absorbing means 18c (see FIG. 5B), and the shock applied to the scab b is absorbed and absorbed.

In this case, the same shock absorbing effect can be obtained by the thin portion 18b. Further, since the drive shaft 18 is inclined at a small angle α with respect to the sliding direction of the polishing portion 23, the impact applied to the drive shaft 18 deviates from its axial direction, and the drive shaft 18 bends rapidly without any thought. Can reduce the impact. That is, the drive shaft 18 is provided with a shock absorbing means also by its own elastic material, and in this case, by slanting the small angle α as described above, the shock is smoothed without any thought. A buffering effect can be obtained.

As a matter of course, the shock absorbing effect can be obtained even if the shaft 18 is only tilted by α degrees as described above without taking measures such as a long hole portion and a thin portion.

(Other Embodiment) FIG. 6 (a) shows another embodiment, in which the projection 19 of the drive shaft 18 engaged with the locking portion 34 has an opening 19a as a shock absorbing means. Is opened, and the impact is absorbed by elastic deformation of the protrusion 19 (see the chain line in the figure). Further, in the same figure (b), an elastic member 43 is attached to the front part of the protrusion 19, and the elastic member 43 absorbs the impact. Various methods of providing the shock absorbing means to the drive shaft 18 in this manner are conceivable.

[0026]

As described above, the electric nail polisher according to the present invention is provided with the sliding member 22 which reciprocates on the fixed portion 21 provided on the lower portion of the main body portion 2 which also serves as the grip portion, and which is slidable. In the electric nail polisher in which the polishing member 23 is attached to the moving member 22, the fixed portion 21 is provided with the recess receiving portion 38 along the reciprocating direction of the sliding member 22, and the recess receiving portion 38 is provided with the recess receiving portion 38. Since the locking claw 33 projecting from the sliding member 22 is slidably engaged in the reciprocating direction, and the rib 45 is provided between the fixed portion 21 and the sliding member 22 so as to support them separately. Assembleability is improved, and the intrusion of polishing powder generated during use,
The discharge can be suppressed, and the sliding load of the sliding member 22 can be suppressed to make it easy to use.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

2A and 2B are exploded views of the same embodiment. FIG.

FIG. 3 is a sectional view of the embodiment.

FIG. 4 is a partial side view of the same embodiment in use.

5 (a) and 5 (b) are partial plan views of the same embodiment.

6A and 6B are partial cross-sectional views of another embodiment.

FIG. 7 is a partial side view of a conventional example.

[Explanation of symbols]

 2 Main body 21 Fixed part 22 Sliding member 23 Polishing part 33 Locking claw 38 Recessed receiving part 45 Rib

Claims (1)

[Claims] 1. An electric nail polisher in which a fixed member 21 provided at a lower portion of a main body 2 which also serves as a grip is provided with a sliding member 22 which reciprocates, and an abrasive portion 23 is attached to the sliding member 22. In the machine, the fixed portion 21 is provided with a recess receiving portion 38 along the reciprocating direction of the sliding member 22, and the engaging claw 33 protruding from the sliding member 22 is provided in the recess receiving portion 38 in the reciprocating direction. An electric nail polisher, which is slidably engaged with the fixed portion 21 and a sliding member 22 and is provided with a rib 45 for supporting the two separately from each other.