JPH0748171Y2 - Electric nail care machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an electric nail care machine, and a mechanical part is provided between a movable part reciprocally driven by a drive part and a guide part slidably contacting the movable part. This is to prevent noise.

(Prior art example) The present applicant previously proposed a new electric nail polisher (Japanese Patent Laid-Open No. 62-142502). This product is constructed by attaching a polishing part to the tip of the main body case, and the nail is polished by reciprocating the sliding member forming the polishing part by guiding it to a fixed substrate. Is.

(Problems to be solved by the invention) In order to reduce the sliding friction between the sliding member (corresponding to the movable part of the invention) and the fixed substrate (corresponding to the guide part of the invention), The sliding member is loosely attached to the fixed substrate, and when the polishing surface of the polishing part attached to the sliding member is pressed against the nail to polish the nail, the sliding member is pressed against the fixed substrate, so the space between the two No mechanical noise is generated on the surface of the fixed substrate, but when the polishing surface is separated from the claw, there is a slight gap between the sliding member and the fixed substrate. However, there is a problem that the member is likely to occur and the member is likely to be hurt due to the rattling. Further, the sliding member and the fixed substrate to which the pressing force is directly applied by the contact of the nail or the cuticle should be as little as possible from the influence of the pressing force.

Therefore, it is an object of the present invention to provide means for eliminating rattling between a sliding member and a fixed substrate and preventing unnecessary mechanical noise therebetween.

(Means for Solving the Problems) The present invention is a nail care unit in which a nail care unit 2 provided at a front portion of a main body case 1 is reciprocally driven by a drive unit 13.
In forming the movable portion 33 including the movable portion 33 and the guide portion 37 for guiding the reciprocal sliding of the movable portion 33, the movable portion 33
The spring portion 52 for elastically contacting the guide portion 37 is provided.

(Effects) In the above configuration, when the drive unit 13 is driven while holding the main body case 1, the movable unit 33 of the nail care unit 2 moves the drive unit 13.
It is driven by 13 and reciprocates. Therefore, set the nail care section 34 to the nail a.
Care for the nail a by pressing it against the cuticle or the cuticle.

In this case, the movable part 33 is guided by the spring force of the spring part 52.
Since it is elastically contacted with 37, there is no rattling between the two 33, 37. Therefore, even if the movable part 33 reciprocates at high speed with the claw care part 34 separated from the claw a, both 33, 37 No mechanical noise is generated during 37, and the member does not hurt due to rattling.

Further, by pressing the nail care section 34 against the nail a, even if a pressing force is directly applied to the nail care unit 2, the spring portion 52 acts as a cushion body, and even if the pressing force changes a little, It is possible to absorb and reduce the sliding friction.

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

(Embodiment 1) In FIG. 1, this electric nail care machine is configured by providing a nail care unit 2 on the front portion of a rod-shaped main body case 1 which also serves as a grip portion. Reference numeral 3 denotes a switch portion provided on the upper surface of the main body case 1, and when the main body case 1 is held and the switch portion 3 is operated, the nail care portion of the nail care unit 2 reciprocates in the front-back direction by means described later, The nail a is polished. Next, a more detailed description will be given with reference to FIGS.

The main case 1 is a main case 1 made of synthetic resin such as ABS resin.
The power unit case 1b and the battery case 1c are joined to the lower part of a to be assembled. 6 is a name plate made of an aluminum plate which is attached to the main case 1a with an adhesive tape or the like, and 7 is a hole 8 of the name plate 6.
It is a switch knob of the switch unit 3 exposed from the above. 9a
Is a contact portion that is operated to slide forward and backward on the contact board 5 made of a printed circuit board by the switch knob 7. At a midpoint of the slide stroke, the motor is de-energized and the forward slide operation is performed. , The backward slide operation is switched to reverse. In FIG. 3, reference numeral 11 is a power unit mainly composed of the motor 11a, and the contact substrate 5 is mounted on the upper surface of the motor 11a.
A joint portion 11c is mounted on the rotary shaft of 1a via a compression spring 11b so as to be tiltable and projectable and rotatable. Reference numeral 12 denotes a tubular storage portion, in which a joint portion 12a connectable to the power portion 11 is stored. In FIG. 2, 4 is a battery terminal, 9b is a resin moderating piece, 11d is a power supply terminal to the motor terminal, and 11e is a battery terminal.

Reference numeral 13 denotes a drive unit that converts the rotational movement of the power unit 11 into a reciprocating motion, and the drive unit 13 is a gear 14 driven by the power unit 11.
A gear 15 engaged with the gear 14, an eccentric cam 17 mounted on the same rotary shaft 16 as the gear 15, and a drive rod 18 having a rear end annular portion 18a mounted on the cam 17. . Reference numeral 18b is an engaging portion provided at the tip of the drive rod 18. 19 is cam 17
A spring member disposed on the upper part of the drive unit 13 presses the upper and lower end surfaces of the drive unit 13 against the upper and lower support frames 21 and 22 by the spring force thereof to prevent the drive unit 13 from rattling during driving. The power unit 11 and the drive unit 13 are attached to the tubular housing portion 12 by mounting the tubular housing portion 12 in the tip mounting opening 1a 'of the main case 1a. Reference numeral 23 is a bayonet engaging rib projectingly provided in the storage portion 12.

The nail care unit 2 has a fixed portion 31 and two movable portions 3 above and below.
2, 33 and polishing portions 34, 34 as nail maintenance portions mounted on the movable portions 32, 33. As a nail care part,
A cuticle treatment part may be used. The fixed portion 31 is a tubular base portion 36,
It is composed of a substantially elliptical plate-shaped guide portion 37 extending in front of the base portion 36, and the drive portion 13 is housed in the base portion 36. A tip portion of the base portion 36a has a tapered tapered portion 36a so that the polishing portion 34 can be easily viewed from above during polishing of nails. 38 is a coupling screw and 39 is a boss. Reference numeral 41 denotes a guard portion projecting at a boundary position between the main body case 1 serving as a grip portion and the nail care portion 34, which protrudes outward from the nail care portion 34 in the assembled state (see FIG. 1). A polishing part in which the fingertips of the hand holding the case 1 slide forward and reciprocate
Prevent hitting 34,34.

In FIG. 2, the movable parts 32, 33 are mainly composed of elliptical plate-like bodies 32a, 33a, and are in sliding contact with the upper surface and the lower surface of the guide part 37, and slide in the front-back direction along them. is there. That is, engaging rod-shaped ribs 42, 43 are provided in a projecting manner on the lower movable portion 33, the ribs 42, 43 are inserted into the long hole portions 44, 45 of the guide portion 37, and the movable portion 32 on the upper side. Insert it into the holes 46 and 47, and insert the rib 4
By welding the upper end portions 42a, 43a of the 2, 43 to the hole portions 46, 47, the movable portions 32, 33 are slidably mounted in the front-rear direction along the guide portion 37 (see FIG. 4). Reference numeral 48 denotes an opening formed on the main surface of the guide portion 37 in order to reduce the sliding contact area between the movable portions 32 and 33 and the guide portion 37. Reference numeral 51 denotes an engaging portion projecting from the rear portion of the movable portion 33, which is fitted and engaged with the distal end engaging portion 18b of the drive rod 18 in the assembled state, and further, the elongated hole portion 45 and the movable portion 32. It is fitted in a hole 49 provided on the lower surface of the movable member (see FIG. 4 in particular), and the movable parts 32, 33 are pulled by the drive rod 18 and reciprocate in the front-rear direction. In FIG. 2, reference numeral 52 denotes a rattling spring portion provided by cutting out a part of the movable portion 33, and a small rib 53 on the upper surface thereof.
The rib 53 is elastically point-contacted with the lower surface of the guide portion 37 by the spring force of the spring portion 52, and the movable portions 32, 33
When moving back and forth at high speed, the movable parts 32 and 33 move to the guide part 37.
It prevents the mechanical noise from being generated by hitting the main surface of the.

The upper and lower two polishing portions 34, 34 are made of synthetic resin or the like having the same shape and a little elasticity, and are formed by projecting a wall portion 56 on the peripheral portion of the elliptical substrate 55. Further, a polishing surface 58 is provided on the outer surface of the substrate 55 via a cushioning material 57 such as sponge. Denoted at 59 is an engaging projection protruding from the center of the substrate 55. The projection 59 engages with the central hole portions 61 and 62 of the movable portions 32 and 33. Reference numeral 63 denotes an engaging portion linearly protruding inward from the upper end of the wall portion 56, and 65 denotes an engaging portion formed by chamfering the outer convex arcuate side edges of the movable portions 32 and 33. By engaging the engaging portion 63 with the engaging portion 65, the polishing portions 34, 34 are detachably attached to the movable portions 32, 33. In this case, the polishing section 34,
If 34 is made symmetrical in the front-rear and left-right directions, the attachment / detachment direction is not restricted.

This electric nail care machine is configured as described above, and when the main body case 1 is held and the switch section 3 is operated, the power section 11 is driven and its rotational movement is converted into reciprocating movement by the drive section 13. The polishing parts 34, 34 are pulled by the drive rod 18 and reciprocate at high speed. Therefore, the polishing surface 58 is lightly pressed against the nail a to polish the nail a. Here, for example, the roughness of the polishing surface 58 of the lower polishing section 34 is rough, and the upper polishing section is
If the roughness of the polishing surface 58 of 34 is fine,
After the rough polishing of the nail a with 34, the main body case 1 is held again and the respective polishing parts 34, 34 are turned upside down to obtain a finely polished surface 5
8 can be used for finish polishing. In this case, the movable portion 33 elastically slidably contacts the lower surface of the guide portion 37 by the spring force of the spring portion 52, and the movable portion 32 is moved to the guide portion 37 via the ribs 42, 43 by the reaction force of the movable portion 33. The movable parts 32 and 33 are pulled into close contact with each other and are in sliding contact, so
There is no mechanical noise by hitting the upper and lower surfaces of 7,
In addition, the contact area of the movable portion 32 is reduced by the opening 48 provided on the upper surface of the guide portion 37, and the small rib 53 on the movable portion 33 side is in point contact with the lower surface of the guide portion 37, so that sliding contact friction occurs. Is extremely small, so that the movable parts 32 and 33 can smoothly reciprocate with a small power. Further, since this one has two polishing portions 34, 34, rough polishing and finish polishing can be easily performed by simply changing the body case 1 without attaching and detaching the polishing portions 34, 34 for replacement. As shown in FIG. 6, two spring parts 52,52 may be formed in the sliding direction, which improves the stability of the movable part 33 when sliding, and eliminates rattling more effectively. can do. 81, 81 is the guide part 37
The rib is in point contact with.

(Embodiment 2) In FIG. 7 (a), reference numeral 82 denotes a spring portion formed of a leaf spring provided in a groove portion 83 recessed in the upper surface of the movable portion 33, and 84 denotes a small rib similar to the small rib 53. Is. Further, in FIG. 9B, 85 is a spring portion formed of a coil spring arranged in the groove portion 86, 87 is a plate member placed thereon, and 88 and 88 are guide portions 37.
It is a small rib that comes into point contact with. In addition, in FIG.
Reference numeral 89 is a spring portion formed of a leaf spring arranged in the groove portion 90, and 91 is a ball arranged thereon. If such a ball 91 is provided, sliding contact friction with the guide portion 37 is further increased. Can be made smaller. Of course, this may use a coil spring as the spring portion 89.

(Embodiment 3) In FIG. 8, reference numeral 92 denotes a long corrugated spring portion, which is disposed between the guide portion 37 and the movable portion 33 as a separate body from them. By using the corrugated spring portion 92 in this manner, the guide portion
The contact area between 37 and the movable part 33 can be reduced. As described above, the present invention can be modified in various ways, and the spring portion may be provided in the guide portion.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view of an electric nail care machine, FIG. 2 is an exploded view, FIG. 3 is an exploded view of a power unit, and FIG. 4 is a sectional view. , FIG. 5 is a plan view, FIG.
FIG. 7, FIGS. 7 (a), (b), (c) and FIG. 8 are a perspective view and a sectional view of another embodiment. 1 …… Main body case 2 …… Claw care unit 13 …… Drive part 32,33 …… Movable part 34 …… Claw care part 37 …… Guide part 52,82,85,89,92 …… Spring part

Claims (1)

[Scope of utility model registration request] 1. A main body case (1) and a nail care unit (2) provided at the front of the main body case (1). The nail care unit (2) is reciprocally driven by a drive unit (13) and has a nail care unit (34) on the outer surface. And a guide portion 37 on the inner surface side of the movable portion 33 for guiding the reciprocating movement of the movable portion 33 due to the driving of the drive portion 13, and the movable portion 33 and the guide portion. An electric nail care machine characterized in that a spring part (52) elastically contacting with the guide part (37) is provided between the (37).