JPS59156371A - Electric razor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Technical field) The present invention relates to an electric shaver.

(Background Art) ``When an electric razor is used, the shaved layer gets caught in the internal beard pool, so it is necessary to remove the shaved layer at an appropriate time. However, in the past, in this type of electric oven, the bags and external force heads that had been used once in a bath or hot water were manually opened one by one, and the four pieces of waste that had accumulated inside were washed and removed. The drawback was that it was time consuming to do so.

(Object of the Invention) The present invention has been proposed in view of the above points, and its object is to automatically open the outer blade by immersing the throat in a heating medium such as hot water. The purpose of the present invention is to provide an electric shaver that can easily clean the internal debris.

(Disclosure of invention) Hereinafter, the present invention will be explained along with the drawings.

1 to 4 show a first embodiment of an electric shaver according to the present invention. First of all, 1 in FIG. 1 is a housing formed into a substantially T-shape, for example, and an outer cutter frame 3 having an outer cutter 2 on the upper part can be opened freely via a lock/k tongue 4. is installed on.

Figure 2 shows the outer cutter frame 3 in an open state, and Figures 3 and 4 show cross sections of the main parts.
One end side 3a has an adjustable angle, and is configured to be rotatable with respect to this one end side 3a, and is biased in the entry direction by a spring 5 provided on the pivot portion. Further, a hatch 3b having a dogleg shape in cross section is formed inside the other end of the outer cutter frame 3.

Therefore, the lock and tongue 4 are - the upper part 1 of Uzong 1.
aK is being played. That is, one end of a substantially U-shaped spring 6 is integrally connected to the inside of the locking tongue 4, and this spring 6 is housed in a chamber 1b formed inside the upper part 1a of the locking tongue 1; The other end of the spring 6 is in contact with the wall 1c that defines the xtb, and the spring 6 always urges the lock button 4 outward, so that the outer surface of the lock button 4 is The lock button 4 protrudes slightly outward from the outer wall surface of the upper part 1a.
The hook portion 4a at the tip of the arm extends to the inner upper part of the
is configured to engage with the hatch 3b of the outer cutter frame 3. However, when the hook portion 4a and the haunch 3b are engaged, the outer cutter frame 3 does not rotate and maintains the state shown in FIG. 1.

In addition, a small hole 4a is formed in the lock prong 4, which communicates from the outside atll to the chamber 1b. This/J'y hole 4a
is for introducing hot water into chamber 1b when the electric shaver body is thrown into hot water, but a small hole is formed to prevent hot water from entering chamber 1b until a certain period of time has elapsed. has been done. On the other hand, in the upper part 1a of the housing, a similar small hole 1d is also located at a location C corresponding to the bottom of 41b.
is formed, and the hot water that entered chamber lb flows through this small hole 1d.
It can be discharged from

=! - One end of a spring spring 7 made of a so-called shape memory alloy material is fixed to the inner wall of the upper part 1a of Usong, and the other end of this spring spring 7 is always connected to the leaf spring 6 with a gap g & an intervening leaf spring. 6 are arranged facing each other so that they can be suppressed.

The spring spring 7 is made of a material that has a shape memory effect that allows it to restore its shape even when the temperature is hot water or at a low temperature, and can be used repeatedly.
At all times, when it is cold, such as at room temperature, it has a length as shown in Figure 3, and when it is heated, such as by being immersed in hot water, and when it is hot, it stretches and becomes a plate as shown in Figure 4. It is designed to come into contact with and press the spring 6.

In the figure, reference numeral 8 denotes an inner cutter that is in sliding contact with the outer cutter 2, and is driven by a motor (not shown) housed inside the housing l.

Further, when the electric stove body is immersed in hot water, the inside of the body is constructed to be liquid-tight with a sealing member 9 or the like 2 to prevent hot water from entering the inside.

Next, the operation of the above embodiment will be explained.

First, the main body of the electric shaver is used with the outer cutter frame 3 mounted on the Housong l as shown in FIG. After use, debris accumulates in the stubble inside the outer cutter frame 3, so it is necessary to remove and clean it. When cleaning, turn the electric shaver body upside down and place the outer blade head in hot water, and the chamber lb will pass through the small hole 4a.
Hot water gets inside.

For this reason, the spring spring 7 is warmed by the hot water, changes into an extended shape, and presses the leaf spring 6 inward. Therefore, the hook portion 4a of the locking tongue 4 is retracted and released from the engagement with the punch 3b (see FIG. 4).As shown in FIG. It rotates and opens automatically using a gun, thereby removing debris from the beard trap.After cleaning, by pressing the outer cutter frame 3 against the housing 1 side by hand, the hook portion 4a is reattached to the hatch 3b. is engaged and locked.

Incidentally, when the electric shaver is operated normally as shown in FIG. 1, the hot water in the chamber 1b is discharged to the outside through a small hole 1d formed at the bottom of the chamber 1b and is removed. Further, when the temperature of the spring spring 7 decreases to approximately the same as room temperature, the spring spring 7 becomes in a contracted state as shown in FIG. 3.

5 and 6 show a second embodiment of the invention. In this embodiment, the outer cutter head of a rotary electric shaver is automatically opened to heat such as the temperature of hot water. That is, first of all, in FIG. 5, 11 is a main body, and on this main body 11 is a ring-shaped blade mount 1- of a well-known structure.
2 is removably provided, and an outer cutter 13 is provided in which a large number of hair introduction holes are formed in the upper part. Note that 14 is a lid provided on the ring-shaped outer periphery of the main body 11 so as to be openable and closable.

Further, FIG. 6 shows a state in which the blade mount 12 is removed, and a groove 11a is formed in the vicinity of the outer blade 13 attachment portion of the main body 11. In addition, a storage portion 15 is provided on the upper surface of the main body 11. That is, a wall 11b stands up from the main body 11 at the lower part of the outer periphery of the outer blade i3, and a storage portion 15 is provided inside the wall 11b. 15 are provided.

Thus, a part of the wall 11b is cut out to form an opening lie that communicates the beard storage part 15 with the outside.One end of the opening lie is press-fitted into the groove L1aK, and the other end is wall 1
1bKa is normally closed by the lid 14 in contact with it.

In this case, the lid 14 is made of a material with a shape memory effect, such as a Ni-Ti alloy.

In addition, some shape memory alloys undergo a one-time deformation, meaning that once they return to their original shape when heated to high temperatures, the shape does not change even if the temperature is changed, and others when the temperature is raised or lowered. Although there are both types that allow repeated shape changes according to changes in the shape, the latter is more suitable for the present invention.

Tsume, roof 14 made of shape memory effect material in the present invention
For example, when heated to about 10°C, which is the humidity of bath water, it is shown as a chain/gland 1 in Figure 6, and when it is cooled to about 20°C, which is the temperature of tap water. bjJ
Memorize the shape so that it looks like the one shown in Fig. 1.

Therefore, when it is placed in a lagoon after use, the shape memory effect of the material 14 opens the aperture 11c, from which the debris in the beard reservoir 15 can be discharged. After that, when the main body is cooled again by immersing it in tap water, the opening ttc is closed by the fifth tray 14, and it is possible to prevent the beard from flying during shaving.

Figures 7 to 9 (a) and (b) show a third embodiment of the present invention. An opening/closing means made of a shape memory alloy phase is provided between a blade mount 23 in the shape of a short cylinder with a bottom provided on the inner circumferential side of the washing ring 22. In other words, the water washing ring 22id has a circular ring shape, a pair of holes 22K are formed on its side, and a flange portion 22 is formed inside the bottom.
A shaft 22c is formed on b to protrude upward Q.

- 10,000, a pair of holes 23a are formed on the side surface of the blade mounting base 23, a part 23b is formed which is open to the lower surface, and a groove 23c is provided on the inner wall surface of the top plate portion that protrudes downward. It is being The water washing ring 22 is inserted between the blade mount 23 and the main body 21, and is fixed onto the main body 21 by a screw 24. In addition, Aibe 2
A hole 23d is formed in the side of 3b. However,
A leaf spring 2 having a shape of a square on the shaft 22e of the washing ring 22
One end of the blade 5 is attached to the shaft 23c on the side of the blade attachment 23, and the other end of the nose 5 is attached to the shaft 23c on the side of the blade attachment 23 so as to be loose.

This spring 25 is located within the phase part 23b of the blade mount,
It is made of a material with a reversible shape memory effect.

When assembling, for example, first each shaft 22c
, 23c, while the spring 25 is locked, the washing ring 22 is attached to the outer periphery of the blade mount 23. Then, the flange portion 22b of the flushing ring 22 is placed on the outer peripheral portion 21a of the upper surface of the main body 21.
f! f: Remount and screw the screw 24 into the stepped protrusion 21bK formed at the approximate center of the main body 21 from the blade mount 23 side into the hole 21c to attach the blade mount to the main body. 21. In this case, the washing ring 22 is configured to rotate relative to the main body 21 and a blade mount 23 fixed by a screw 24.

After placing the washing ring 22 and the blade mount 23 on the main body 21 (as shown in FIG. Outer blade body 3 attached via a rod 28 and having an outer blade 29
0 iso part 30a'ft: The electric shaver main body can be assembled by screwing it into the threaded part 23e formed above the inner peripheral part of the blade mount 23.

As shown in FIG. 9(a), the washing ring 22 is normally set in such a manner that its hole 22a and the hole 23a formed in the blade mount are misaligned. In this state, if the outer cutter head of the electric shaver is placed in hot water, for example, hot water will enter the blade mount 23 through the numerous hair introduction holes formed in the outer cutter 29, and the blade mount will Hot water enters the phase part 23b from the hole 23d of the inner detail 23b. When the spring 25 is heated by the hot water, the length changes to a memory state different from that at room temperature. That is, the ninth
As shown in Figure (b), the spring 25, one end of which is attached to the shaft 22c of the flushing ring 22, contracts when it is hot.
The rotatable water washing ring 22 relative to the blade mount 23 is rotated counterclockwise by a force, and its hole 22a matches the hole 23a of the blade mount 23. For this reason, the holes 22a, 2
Hot water flows in and out from 3a to the beard reservoir inside the blade mount, thereby making it possible to clean the internal shape layer. After cleaning, if you take the electric shaver out of the hot water and leave it at room temperature for ↑1t, the length of the spring 25 will change to the length when it is cold, as shown in Figure 9 (a). be.

(Effects of the Invention) As described above, according to the present invention, in the electric oven,
The bottom of the groove is provided with an opening/closing means made of a shape memory alloy material (If#) so that the beard reservoir provided inside the electric shaver body and the outside are closed at the same time when cold and opened when hot.
If you place the outer cutter head or electric shaver body in hot water, the external and 3A reservoir will automatically connect];1.Beard? There is an advantage that the debris inside the holder can be easily cleaned and removed.

[Brief explanation of the drawing]

Figures 1 to 4 ζ・1 The first embodiment of the present invention, the first
The figure is an overall perspective view, the second figure is a perspective view showing the operating state, and the third figure is a perspective view showing the operating state.
5 and 61 are the second embodiment of the present invention, FIG. 5 is an overall perspective view, FIG. 6 is an explanatory view of the operation, and FIG. Figure 9 ((), (b)
This is a third embodiment of the present invention, and FIGS. 7 and 8 are perspective views of the N part, and FIG. 9 is an explanatory cross-sectional view of the manufacturing part showing the operating state. l...Housing, 3...Outer blade frame, 4...Lock button, 4a...Hook part, 5.6...Spring, 7...Spring spring, 11...Body, 14...
... Lid, 22 ... Washing ring, :, 22 a, 23
a-...Hole, 23...Blade mounting base, 25...Spring. Applicant Matsushita Electric Works Co., Ltd. Figure 1 A Figure 6 Figure 7

Claims (4)

[Claims] (1) In the electric shaver, an opening/closing means is provided in the main body of the electric shaver 9 and is made of a shape memory alloy material so as to close the fc hair pocket and the outside when it is cold and open it when it is hot. An electric razor characterized by: (2) The electric razor must be a reciprocating four-stroke razor,
The outer cutter frame 1, which can be opened freely, is rotatably supported by a hinge, and is heated in the opening direction by a spring, and the hook at the other end of the outer cutter frame is In a device that engages with a lock button provided on the housing of an electric shaver, the lock part is provided with an opening/closing means made of a shape memory alloy material that releases the lock button and the hook when hot. An electric shaver as claimed in claim 1. (3) The electric shaver consists of a rotating electric shaver,
The main body that defines the beard pool is made of a shape memory alloy material.
The electric shaver according to claim 1, further comprising a lid that can be opened and closed automatically when the shaver is hot. (4) A rotary electric razor, in which a pair of holes are provided in the blade mount that defines the beard pocket provided inside the shaver, and the blade mount is mounted around the periphery and is rotatable with respect to the blade mount. A spring made of a shape memory alloy material is inserted between the ring body and the ring body to rotate the ring body by means of a pane due to the change in shape during hot operation, and to match the hole provided in the ring body with the hole in the blade mounting base. Claim 1, which is characterized by the intervening features:
Electric shaver as described in section.