JPH0350866Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention consists of a fixed blade holder, a fixed blade, a movable blade disposed on the fixed blade, and a drive member connected to the movable blade. The invention relates to an electric hair clipper equipped with an electric clipper.

[Conventional technology]

Generally, this type of clipper has a fixed blade holder,
A cylindrical bearing formed at the rear end of a blade block consisting of a fixed blade and a movable blade was fitted onto a pivot fixed to the main body case to rotatably support the blade block. When the engagement means between the blade block and the main body case is disengaged and the blade block is rotated, it is released from the main body case. This release makes it possible to supply oil to the required locations or to easily remove hair debris that has adhered to the movable blade.

In addition, hair debris and hair scale tend to adhere between the movable blade and the fixed blade, increasing the sliding resistance between the two.
As a result of this increase, seizure of the blade surface occurs.
To prevent this, there is a device in which the movable blade is lifted from the fixed blade against the elasticity of a spring that presses the movable blade against the fixed blade to remove hair debris and the like.

The present invention is directed to this type of electric hair clipper.

[Purpose of invention]

An object of the present invention is to provide an electric hair clipper that is easy to clean, has excellent handling properties, and can always maintain good sharpness.

[Summary of the idea]

In order to achieve the above-mentioned object, the present invention includes a fixed blade holder 10 that is detachably attached to the main body case 1, and a blade tip 14 that is located near the front end of the fixed blade holder 10. A fixed blade 11 fixed to the fixed blade holder 10 so as to protrude from the front end of the holder 10, a blade tip 15 corresponding to the blade tip 14 of the fixed blade 11 at the tip, and a blade tip 1 at the rear end.
The movable blade 13 is provided with a protrusion 16 that serves as a fulcrum when the blade 5 rotates away from the cutting edge 14 of the fixed blade 11, and the movable blade 13 is connected to the fixed blade 1.
The presser spring 23 is provided with a presser spring 23 that elastically urges the movable blade 13 toward the zero side, and a drive plate 17 that is integrally provided on the movable blade 13 and engages with the drive member 8 that reciprocates the movable blade 13. Pressing portions 23b, 2 formed of wire springs are formed approximately parallel to each other at a predetermined interval.
3b and a base end portion 23a connecting both pressing portions 23b, 23b into a substantially U-shape.
The tips of 3b and 23b are locked to the driving plate 17, and the base ends 23a are locked to the rear end of the fixed blade holder 10, and the protrusion 16 position of the rear end of the movable blade is locked to the driving plate 17. A finger rest 27a provided at a further rear position faces the rear end of the fixed blade holder 10 at a predetermined distance, and
It is characterized in that at least the finger rest part 27a of the drive plate 17 is arranged between the pressing parts 23b, 23b of the pressing spring 23.

〔Example〕

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

Reference numeral 1 in the figure 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 fits. A drive rod 8 is integrally provided on the surface of the free end portion 5b, and the tip of the drive rod 8 extends into the blade block storage chamber 9 formed at the tip of the main body case 1. It's being served.

Reference numeral 10 denotes a synthetic resin fixed blade holder disposed in the opening at the tip of the main body case 1. On the upper surface of this fixed blade holder 10, a fixed blade 11 is attached to a welding protrusion 12.
etc., is firmly fixed. As shown in the figure, the comb-shaped cutting edge portion 14 of the fixed blade 11 is attached to the fixed blade holder 1.
It is fixed so that it protrudes slightly from the tip of 0.

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 this movable blade 13,
For example, a protrusion 16 that is press-worked and bent downward during molding is integrally formed, and the protrusion 16 and the cutting edge portion 15 are brought into contact with the upper surface of the fixed blade 11. Reference numeral 17 denotes a synthetic resin drive plate fixed to the upper surface of the movable blade 13, and an engagement protrusion 18 is integrally formed on the upper surface. This engagement protrusion 18 is removably engaged with an engagement portion 19 formed at the tip of the drive rod 8, thereby allowing the movable blade 13 to move in the left-right direction (arrow a in FIG. 2). b direction).

Reference numerals 20 and 20 denote opposing wall portions located on the rear side of the fixed blade 11 and protruding from the upper surface of the fixed blade holder 10. The rod 22 is constructed between the two wall portions 20, 20 by inserting both ends of the rod 22 into holes 21, 21 formed in the two wall portions 20, 20, respectively.

23 is a pressing spring wrapped around the rod 22;
For example, it is composed of a substantially U-shaped wire spring. The base end portion 23a, which extends rearward and has a downward spring force, is locked to a locking step portion 24 projecting from the rear end of the fixed blade holder 10. Further, the tip portions 23b, 23b, which are parallel to each other and have a downward spring force and serve as pressing portions, extend into grooves 25, 25 formed at both left and right ends of the upper surface of the drive plate 17. and a bent portion 23 formed at each tip.
c, 23c are inserted into small holes 26, 26 formed at the tips of each of the grooves 25, and are pivotally mounted to be rotatable within a horizontal plane. As a result, the spring force of each end portion 23b, 23b of the pressing spring 23 is applied to the drive plate 17.
The movable blade 13 is urged through the movable blade 13, and the movable blade 13 is in elastic contact with the fixed blade 11. Press spring 23 above
The movable blade 1 is rotatably inserted into the tips 23c, 23c and the small holes 26, 26, respectively.
This is to allow the tips 23b, 23b of the pressing spring 23 to move in parallel following the reciprocating movement of the movable blade 13, and to restrict the position of the cutting edge 15 of the movable blade 13 in the protruding direction.

A protrusion 27 is formed at the rear end of the drive plate 17 and extends rearward and upward from the contact position between the protrusion 16 of the movable blade 13 and the fixed blade 11.
Reference numeral 7a serves as a finger rest for a pushing operation that rotates the movable blade 13 using the protrusion 16 as a fulcrum against the spring force of the tip end 23b of the pressing spring 23. The finger rest 27a is formed parallel to the fixed blade 11 (fixed holder 10) so that it can be easily pressed with a finger. For example, as shown in FIG. 8, a portion corresponding to the base of the finger rest 27a is inserted between the tips 23b, 23b of the pressing spring 23,
It is located.

Fixed blade holder 3, fixed blade 11, movable blade 1
3. Drive plate 17, presser spring 23, etc.,
A blade block 28 is constructed.

29 is an elastic locking piece whose base end is fixed to the main body case 1 side, and 30 is a distal end locking portion 2 of the locking piece 29 which is protruded from the upper surface of the fixed blade holder 10.
This is a locking protrusion that is removably locked to 9a.

On the side of the block blade 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 the embodiment, the inner wall 9 of the blade block storage chamber 9
A is formed with a U-shaped groove 32 as shown in FIG. 3, and a shaft forming 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 stepped portion 34 integrally formed on the base end 5a of the vibrator 5, thereby preventing the pivot portion 33 from deviating from the U-shaped groove 32. and rattling is prevented.

On the other hand, a bearing portion 35 that is pivotally supported by the pivot portion 33 is formed at the tip 31 a of the connecting portion 31 . This bearing portion 35 includes a pair of elastically deformable C-shaped holding pieces 36, 36 that rotatably hold both ends of the pivot portion 33, and these C-shaped holding pieces 36, 36 are integrated. It is composed of a half-cylindrical fitting part 37 connected to. Preferably, the C-shaped holding pieces 36, 36 are cut out by an arc corresponding to approximately 1/4 of the entire circumference.

In the above configuration, if the tip of the blade block 28 is pinched and rotated in the direction of the arrow, the locking piece 29 and the locking protrusion 30 are unlocked, and the blade is rotated about the pivot portion 33. Block 2
8 can be opened from the blade block storage chamber 9 as shown in FIG. It is possible to remove hair debris adhering to the blade block 28 and the storage chamber 9, or to supply oil to predetermined locations of the blade block 28. The above blade block 28 is attached to the main body case 1.
Since the blade block 28 is pivotally connected to the pivot portion 33 of the blade block 28 via the C-shaped holding pieces 36, there is no risk of the blade block 28 accidentally falling off during the above-mentioned opening operation.

With the blade block 28 in the open state, if you pull this blade block 28 forward, the blade block 2
Since the C-shaped holding pieces 36, 36 on the 8 side each elastically deform from the state shown in FIG. 5 to a larger diameter as shown in FIG. When opened, the C-shaped holding pieces 36, 36
The pivoting relationship between the blade block 28 and the pivot portion 33 is released, and the blade block 28 is moved to the main body case 1 as shown in FIG.
It can be separated from the side.

Moreover, the cutout portion 3 of the C-shaped holding pieces 36, 36
The blade block 28 can be attached to the main body case 1 by pressing the blade block 6a against the pivot portion 33.

For example, when the blade block 28 is removed from the main body case 1, the blade edge portion 14 of the fixed blade 11 and the blade edge portion 1 of the movable blade 13 in the blade block 28 are
If you want to remove the hair that has stuck between the
By simply sandwiching the rear end of the fixed holder 10 and the finger rest 27a of the drive plate 17 and push the finger rest 27a relatively downward as shown in FIG. 8, the protrusion 16 becomes the fulcrum of the lever. Since the cutting edge part 15 of the movable blade 13 can be separated from the cutting edge part 14 of the fixed blade 11, hair waste can be removed and oiling can be performed 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. However, the holding pieces 36, 36 are connected by a half-cut cylindrical part 37, and this cylindrical part 37
Since the pivot portion 33 is fitted into the blade block 28
Rotation becomes smoother and rattling is also prevented.

[Effect of idea]

As described above, this invention provides the fixed holder 10
Rear end and finger rest 2 of drive plate 17 (drive member)
7a are both made of synthetic resin, the opening angle and shape of the movable blade 13 relative to the fixed blade 11 can be freely modified. Also, the blade edges 14, 1 are placed at a position away from the blade edges 14, 15 to be cleaned.
Since it can be opened and opened in step 5, it is easy to clean without getting your fingers dirty with hair, oil, etc.

In addition, when operating the cutting edge parts 14 and 15 to separate, the eighth
As shown in the figure, the point where the protrusion 16 is in contact with the fixed blade 11 serves as a fulcrum and the blade edges 14 and 15 are separated. The part 16 is cleaned with the part 16 facing down, so that some of the hair removed by the cutting edge parts 14 and 15 falls off to the protrusion 16 side.

In addition, a wire spring capable of exerting spring force in all directions is used as a pressing spring, and pressing portions for elastically biasing the movable blade toward the fixed blade are provided on the pressing spring approximately parallel to each other at predetermined intervals. The distal end portion is positioned on the drive member. Therefore, when the movable blade is separated from the fixed blade, the left and right sides of the movable blade are opened almost equally, preventing the movable blade from tilting, thereby facilitating cleaning of the blade. Furthermore, when the movable blade returns, it can be returned to its original position.

On the other hand, the movable blade 13 is supported by the fixed blade 11 via a pressing spring 23, and the movable blade 13 of the pressing spring 23
Since the distal ends 23b, 23b engaged with the movable blade 13 can easily move laterally using the proximal end 23a as a fulcrum, the movable blade 13
The protrusion 16 tends to shift laterally.If the protrusion 16 shifts laterally during cleaning as described above, the hair that has fallen off from the blade edges 14 and 15 will fall onto the fixed blade 1.
1 and the protrusion 16, and when the cutting edge parts 14 and 15 are closed after cleaning, the hair remains as it is sandwiched under the protrusion 16.

If the hair debris remains trapped between the fixed blade 11 and the protrusion 16 in this way, the hair debris may become carbonized due to the heat generated when the movable blade 13 reciprocates at high speed when the clipper is used. This increases the sliding resistance of the movable blade 13 and reduces the sharpness of the clipper.

In this respect, the electric hair clipper of the present invention has a drive plate 17.
The finger rest portion 27a is formed substantially parallel to the pressing portions 23b, 23 with a predetermined interval between the pressing springs 23.
When the finger rest part 27a is pressed toward the fixed holder 10 side with a finger, both sides of the finger are width-regulated by the pressing parts 23b, 23b.
At this time, both sides of the finger correspond to the fixed side of the rear end of the pressing parts 23b and 23b, which have a small amount of lateral deformation, so even if the finger accidentally tries to move laterally, the sides of the finger will It hits the pressing portions 23b, 23b and prevents lateral displacement. Therefore, the cutting edge part 1
Hair debris falling off from the fixed blade 11 and the protrusion 1
This eliminates the problem of hair remaining between the hair and the hair as described above, which increases sliding resistance, and provides consistently good cutting quality. can be retained.

[Brief explanation of drawings]

Fig. 1 is a cutaway side view showing an example of the electric clipper according to this invention, Fig. 2 is an exploded perspective view showing the blade block, Fig. 3 is an explanatory view of the pivot, and Fig. 4 shows the blade block attached to the main body case. 5 and 6 are explanatory diagrams of the action of the pivot portion and the bearing portion. FIG. 7 is an explanatory diagram of the case where the blade block is separated from the main body case. 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. 1... Main body case, 10... Fixed holder, 11
...Fixed blade, 13...Movable blade, 14, 15...Blade tip, 16...Protrusion, 17...Drive plate, 23...
Pressing spring, 23a...Tip, 27...Protrusion, 2
7a...Finger rest part.

Claims (1)

[Scope of Claim for Utility Model Registration] A fixed blade holder 10 that is detachably attached to the main body case 1, and a blade edge portion 14 located near the front end of the fixed blade holder 10 so as to protrude from the front end of the fixed blade holder 10. Fixed blade 11 fixed to fixed blade holder 10 in
A cutting edge portion 15 corresponding to the cutting edge portion 14 of the fixed blade 11 is provided at the tip, and a protrusion 16 serving as a fulcrum when the cutting edge portion 15 rotates away from the cutting edge portion 14 of the fixed blade 11 is provided at the rear end. A movable blade 13 provided respectively, a pressing spring 23 that elastically urges the movable blade 13 toward the fixed blade 10, and a drive member that is integrally provided on the movable blade 13 and drives the movable blade 13 back and forth. 8 and a drive plate 17 that engages with the pressing spring 23, the pressing portions 23b, 23b formed of wire springs are arranged substantially parallel to each other at a predetermined interval.
and a base end portion 23 connecting both pressing portions 23b, 23b.
a, the tips of the pressing parts 23b, 23b are locked to the drive plate 17, and the base ends 23a are locked to the rear end of the fixed blade holder 10, and the drive plate At 17, a finger rest 27a provided at a position rearward from the position of the protrusion 16 at the rear end of the movable blade faces the rear end of the fixed blade holder 10 at a predetermined distance, and the drive plate 17
At least the finger rest 27a of the pressing spring 23
An electric clipper characterized by being arranged between pressing parts 23b, 23b.