JPS603789Y2 - electric hair clipper - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric hair clipper with an improved structure for attaching the blade block to the main body case.

Generally, in this type of hair clipper, a cylindrical bearing formed at the rear end of a blade block consisting of a fixed blade holder, fixed and movable blades, etc. is fitted into a pivot fixed to the main body case to rotate the blade block. If the locking means between this blade block and the main body case side is released and the blade block is rotated, the blade block is released from the main body case side, for example. It is designed to remove hair particles attached to movable blades, etc., and to replenish oil to the required areas.

By the way, the sliding surfaces of the movable blade and the fixed blade tend to have hair dust, hair scale, etc., and in order to prevent an increase in the sliding resistance of the two and the seizure of the blade surface due to this increase, When the movable blade is pressed, it is necessary to lift it against the spring force and float it against the fixed blade side to clean away hair and other debris.

However, in the above configuration, since the blade block is rotatably supported on the main body case and cannot be removed, the blade block has the movable blade.

The lifting operation is difficult to perform, and it is difficult to remove the hair that has adhered to the sliding surface, making it difficult to use.

For this reason, by forming locking parts on the rear end of the blade block and the main body case that rotatably lock the blade block, both lock parts formed on the tip side can be released. A device has been proposed in which the blade block can be removed from the main body case by simply rotating the blade block.

However, in the above configuration, the blade block is detached from the main body case simply by releasing the locked state between the blade block and the main body case, so when the above-mentioned blade block is removed, the blade block may be accidentally dropped and damaged. There is a risk.

The present invention was developed in view of the above circumstances, and the present invention is designed to allow the blade block to be freely rotated and detached from the main body case in order to facilitate maintenance and cleaning of the blade block consisting of fixed blades, movable blades, etc. The purpose of this invention is to provide an electric shaver that can be attached to a person's body.

To this end, the present invention provides a pivot part and a bearing part in the main body case and the blade block, and when the blade block is rotatably attached to the main body case via the pivot part and the bearing part, the above-mentioned bearing part is provided. a pair of elastically deformable C-shaped holding pieces formed at positions corresponding to both ends of the pivot portion; and a half-cylindrical fitting part with an opening formed on the same side as the opening part, and the pivot part is rotatably and detachably fitted to the bearing part. The blade block can be freely rotated with respect to the main body case so that the blade block can be cleaned, oiled, etc. without fear of the blade block falling off from the main body case, and the movable blade can be lifted and fixed, for example. When carefully cleaning the hair debris that adheres between the blade and the movable blade, the pivot portion and the bearing portion are forcibly separated while elastically deforming the C-shaped holding piece. , The blade block can be removed from the main body case to perform the cleaning work mentioned above.

An embodiment of this invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a main body case made of synthetic resin or the like, in which a motor 2 is housed, and an eccentric member 4 is fixed to a rotating shaft 3 of the motor 2.

Reference numeral 5 denotes a vibrator whose base end 5a is fixed to the main body case 1 with a screw 6 or the like, and the back surface of the free end 5b of this vibrator 5 has a hole 7 into which the eccentric member 4 is fitted. is formed,
Further, a driving rod 8 is integrally provided on the surface of the free end portion 5b, and the tip of the driving rod 8 extends into the blade block storage chamber 9 formed at the tip of the main body case 1. There is.

Reference numeral 10 denotes a fixed blade holder made of synthetic resin disposed in the opening at the tip of the main body case 1, and a fixed blade 11 is firmly fixed to the upper surface of the fixed blade holder 10 by a welding protrusion 12 or the like. .

A movable blade 13 is disposed on the upper surface of the fixed blade 11, and has a cutting edge portion 15 corresponding to the cutting edge portion 14 of the fixed blade 11.

At the rear end of the movable blade 13, a protrusion 16 that is pressed and bent downward during molding is integrally formed.
1 in contact with the top surface of 1.

Reference numeral 17 denotes a drive plate fixed to the upper surface of the movable blade 13, and is made of synthetic resin or the like, and an engaging protrusion 18 is integrally formed on the upper surface of the drive plate.

This engagement protrusion 18 is removably engaged with an engagement portion 19 formed at the tip of the drive rod 8, thereby causing the movable blade 13 to move in the left-right direction (in the direction of arrows a and b in FIG. 2). It is designed to be driven back and forth.

20.20 is an opposing wall portion located on the rear side of the fixed blade 11 and protruding from the upper surface of the fixed blade holder 10;
Holes 21 formed in both wall portions 20, 20, respectively,
By inserting both ends of the rod 22 into the rod 21, the rod 22 is constructed between the two walls 20, 20.

Reference numeral 23 denotes a pressing spring wound around the rod 22, which is composed of, for example, a substantially U-shaped wire spring.
It is locked to a locking step 24 protruding from the rear end of the
The tips 23b, 23b, which are parallel to each other and have a downward spring force, extend into grooves 25.25 formed at both left and right ends of the upper surface of the drive plate 17. The bent portions 23c*23c formed in the grooves 25 are inserted into the small holes 26 and 26 formed at the tips of each of the grooves 25, and are pivotally attached so as to be rotatable in a horizontal plane.

As a result, the spring force of each tip end portion 23b, 23b of the pressing spring 23 is biased against the movable blade 13 via the drive plate 17, and the movable blade 13 is in elastic contact with the fixed blade 11.

Tips 23C, 23c of the wire spring 23 and the small hole 26
．． 26 are rotatably inserted into the movable blade 13 so that the tips 23b, 23b of the pressing spring 23 can move in parallel following the reciprocating motion of the movable blade 13, and the blade edge 15 of the movable blade 13 This is to restrict the position of the protruding direction.

A protrusion 16 of the movable blade 13 is provided at the rear end of the drive plate 17.
A protrusion 27 is formed that extends rearward and upward from the contact position with the fixed blade 11, and the tip 27a of this protrusion 27 moves the movable blade 13 using the protrusion 16 as a fulcrum to push the movable blade 13 toward the tip of the pressing spring 23. The finger rest part 27a is configured as a finger rest part for a pushing operation which is rotated against the spring force of the part 23b.
is formed parallel to.

The fixed blade holder 3, the fixed blade 11. A blade block 28 is constituted by the movable blade 13, the drive plate 17, the pressing spring 23, and the like.

Reference numeral 29 denotes an elastic locking piece whose base end is fixed to the main body case 1 side, and 30 projects from the upper surface of the fixed blade holder 10 and is removably locked to the distal end locking part 29a of the locking piece 29. This is a locking protrusion.

On the side of the blade block 28, for example, at the rear end of the fixed blade holder 10, a connecting portion 31 is integrally formed to protrude. On the other hand, in this embodiment, the inner wall 9a of the blade block storage chamber 9 has a U as shown in FIG.
A U-shaped groove 32 is formed, and a shaft constituting a pivot portion 33 is fitted into this U-shaped groove 32.

This pivot portion 33 is pressed against the bottom surface of the groove 32 by a step portion 34 integrally formed on the base end portion 5a of the vibrator 5, so that the U-shaped groove 3 of the pivot portion 33
Deviation from 2 and rattling are prevented.

On the other hand, the tip 31a of the connecting portion 31 has the pivot portion 33.
A bearing portion 35 is formed to be pivotally supported.

This bearing part 35 is located between a pair of elastically deformable C-shaped holding pieces formed at positions corresponding to both ends of the pivot part 33, and the holding pieces 36, 36. 36
It is formed from a half-cylindrical fitting part 37 that integrally connects the two.

Openings 361, 361 of the C-shaped holding pieces 36, 36
(See FIG. 9) is formed on the opposite side of the connecting portion 31 by cutting out a length corresponding to approximately 1/4 of the entire circumference of the holding pieces 36, 36.

Further, the opening 371 of the fitting portion 37 is formed on the same side as the openings 361, 361 of the holding pieces 36, 36.

The pivot portion 33 is held at its both ends by the holding pieces 36, 36, and its center portion is fitted into the fitting portion 37 and rotatably fitted into the bearing portion 35.

In the above configuration, if the tip side of the blade block 28 is pinched and rotated in the direction of the arrow, the lock piece 29 and the locking protrusion 30 are unlocked, and the blade block 28 is rotated about the pivot 33. can be opened from the blade block storage chamber 9 as shown in FIG.
It is also possible to remove hair and debris adhering to the inside of the storage chamber 9, or to supply oil to predetermined portions of the blade block 28.

Since the blade block 28 is pivotally attached to the pivot portion 33 of the main body case 1 via the C-shaped holding pieces 36, there is no risk of the blade block 28 accidentally falling off during the opening operation.

In the open state of the blade block 28, this blade block 28
When the blade block 28 side is pulled forward, the C-shaped holding pieces 36, 36 on the side of the blade block 28 are elastically deformed from the state shown in FIG. 5 to a larger diameter as shown in FIG. The cutout portions 36a of the holding pieces 36, 36 are expanded and the above-mentioned C
The pivotal relationship between the C-shaped holding pieces 36, 36 and the pivot portion 33 is released, and the blade block 28 can be separated from the main body case 1 side as shown in FIG. By pressing the notches 36a of the holding pieces 36, 36 against the pivot portion 33, the blade block 28 can be attached to the main body case 1 side.

With the blade block 28 removed from the main body case 1, for example, if you want to remove hair debris that has adhered between the blade tip 14 of the fixed blade 11 and the blade tip 15 of the movable blade 13 in the blade block 28, , by simply pushing the finger rest 27a downward as shown in FIG.
Since the hair can be separated from the cutting edge portion 14 of the blade, hair debris can be removed without any effort.

In particular, when the blade block 28 is installed, if the C-shaped holding pieces 36, 36 are simply supported on the pivot portion 33, the blade block 28 may shake.
The holding pieces 36, 36 are connected by a half-cut cylindrical part 37, and the pivot part 33 is fitted into this cylindrical part 37, so that the blade block 28 can rotate smoothly and there is no wobbling. Prevented.

In the above embodiment, the pivot portion 33 is provided on the main body case 1 side and the bearing portion 35 is provided on the blade block 28 side, but conversely, the pivot portion 33 is provided on the blade block 28 side and the bearing portion 35 is provided on the main body case 1 side. A bearing portion 35 may be provided on each of the two bearing portions.

As described above, in the electric shaver according to the present invention, the bearing part 35 for mounting the blade block 28 on the main body case 1 is attached to a pair of elastically deformable Cs formed at positions corresponding to both ends of the pivot part 33. A letter-shaped holding piece 36.36 and the holding piece 36
, 36, the holding pieces 36, 36 are integrally continuous, and an opening 371 is formed on the same side as the openings 361, 361 of the holding pieces 36, 36. Part 37
Since the pivot part 33 is rotatably and detachably fitted into the bearing part 35, the bearing part 35 has a function of rotating the blade block 28 and a function of attaching and detaching it. The block 28 can be freely rotated with respect to the main body case 1 without fear of falling off unnecessarily, and can be easily attached to and detached from the main body case 1, so that maintenance and cleaning of the blade block 28 can be performed efficiently.

[Brief explanation of drawings]

Fig. 1 is a cutaway side view showing an example of an electric hair clipper according to this invention, Fig. 2 is an exploded perspective view showing the blade block, and Fig. 3
The figure is an explanatory diagram of the pivot part, Figure 4 is an explanatory diagram when rotating the blade block from the storage position of the main body case, Figures 5 and 6 are explanatory diagrams of the action of the pivot part and the bearing part, and Figure 7 is an explanatory diagram of the pivot part and the bearing part. The figure is an explanatory diagram when separating the blade block from the main body case, No. 8
The figure is a sectional view showing a state in which the cutting edge of the movable blade of the blade block is separated from the cutting edge of the fixed blade, and FIG. 9 is a view showing the main parts of the bearing part. 1...Body case, 9...Curved blade block storage chamber, 9a...Rear inner wall, 28...Blade block, 29°30...Lock part , 31a...
... Rear end, 33 ... Pivot part, 35 ...
・Bearing part, 36, 36...Curved holding piece, 37...
Fitting portion, 361, 361, curve, opening, 371...
··Aperture.

Claims (1)

[Scope of utility model registration request] A pivot portion 33 provided on either one 9ay31a of the rear inner wall 9a of the blade block storage chamber 9 formed in the main body case 1 and the rear end 31a of the blade block 28, the other 31a,
A bearing portion 3 formed at 9a and pivotally supported by the pivot portion 33
5, and lock portions 29 and 30 of both 1 and 28 formed on the main body case 1 side and the blade block 28 side and releasably engaged with each other at the storage position of the blade block 28,
A pair of C-shaped holding pieces 36 that can be elastically deformed are formed at positions corresponding to both ends of the pivot portion 33 to hold the bearing portion 35.
, 36, and the holding piece 3 between the holding pieces 36, 36.
6 and 36 are integrally connected, and a half-cylindrical fitting part 37 having an opening 371 formed on the same side as the openings 361, 361 of the holding pieces 36, 36, and the bearing part 35
An electric hair clipper in which the pivot portion 33 is rotatably and detachably fitted.