JPS6319025Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a water-washable electric shaver.

Conventionally, with a water-washable electric shaver, tap water is poured into the hair introduction hole of the outer blade while the mesh outer blade is attached to drive the inner blade. The hair that has accumulated on the razor head is washed away along with water through a drain opening in the razor head. In this case, when washing with water, tap water flows from the outer blade and the drain port to the razor grip, making the grip extremely wet. This may cause the hand to slip from the grip, and the hair that is washed out with water may adhere to the grip, causing discomfort to the user.Furthermore, the attached hair cannot be easily wiped off. It was hot.

Focusing on this fact, this invention tilts the razor head with respect to the razor grip and devises the relative positioning relationship between the drain port and the opening/closing knob of the drain cover, thereby creating a mesh shape when washing with water. The purpose is to make it easier to pour tap water into the outer blade, and to minimize the chance of the razor grip getting wet or dirty.

The details will be explained below based on the drawings.

FIG. 1 illustrates a water-washable electric shaver according to this invention, which consists of a razor gripping part 1 and a razor head 2 provided on the upper part of the razor gripping part 1. It is inclined forward by a certain angle α (approximately 18 degrees) with respect to 1.

In FIGS. 2 to 4, the razor grip 1 is a plastic molded product shaped like a cylindrical box that accommodates a battery 3 in a removable manner, and the razor head 2 has a generally spherical overall external shape. It consists of a lower half head 2a connected to the upper end of the razor grip 1 in a forward-inclined state, and an upper half head 2b attached to the lower half head 2a. A portion T on the rear surface of the lower half of the head 2a that connects with the razor gripping portion 1 is chamfered to make it easier to place the index finger of the hand gripping the razor gripping portion 1 on the corresponding portion T (see FIG. 10).

The lower half head 2a has a drive unit 4 built therein. The drive unit 4 includes an upper lid 5 which is tightened and fixed to the lower half head 2a with tapping screws 50.
and an operation ring 8 having a motor 6 attached to the upper lid 5 and a drain lid opening/closing operation knob 7. The upper lid 5 is entirely made of plastic, and a cylindrical motor case 9 housing the motor 6 is integrally provided on the lower side of the upper lid 5 and protrudes downward, and the output shaft of the motor 6, that is, the drive shaft, is provided in the center of the upper lid 5. 10 opens an opening 11 that projects upward and forward, and a waterproof seal packing 12 is interposed between the drive shaft 10 and the inner periphery of the opening 11 to prevent water from entering the motor case 9. The motor 6 has an anode contact 13 on its lower end surface always in contact with an anode plate 14 in the razor grip 1, and the anode plate 14 is in contact with the anode of the battery 3.

In FIGS. 3, 6, and 9, the drain cover opening/closing operation ring 8 is fitted around the motor case 9 so as to be rotatable and slidable by a certain stroke in the circumferential direction of the motor case 9. An operation knob 7 is integrally formed on a part of the outer periphery of the drain lid opening/closing operation ring 8, and the knob 7 faces outward from the notch 15 on the rear side of the lower half head 2a.
Further, a drain cover opening/closing pin 16 integrally provided on the upper surface side of the ring 8 is made to protrude upward from a pin groove 17 opened in the upper cover 5.

The drain cover opening/closing operation ring 8 in the illustrated example has a structure that also serves as an operation ring for opening and closing the drive switch of the motor 6, and has an elastically deformable rotary moderation arm 18 on a part of its inner circumference, and the tip of the arm 18 is A first engagement groove 1 has inward protrusions 18a carved in the circumferential surface of the motor case 9 at a predetermined pitch in the circumferential direction.
9, can be freely engaged and disengaged from the second engagement groove 20 and the third engagement groove 21, and in the normal state, the first engagement groove 19 is in the switch-off position, and in the initial stage, the second engagement groove 20 is in the switch-off position.
in the switch-on position, and in the second stage the third engagement groove 2
At 1, the drain cover can be switched to the open position and can be rotated freely.
That is, a switch pin operating cam piece 22 having a switch pin pressing part 22a and a pressing release part 22b is integrally formed on the lower surface side of the operating ring 8, and is placed at a predetermined position on the circumferential surface of the motor case 9 facing the operating cam piece 22. An opening/closing switch pin 23 is provided so as to be movable in the radial direction, and a motor cathode switch terminal 2 with a leaf spring is connected between the inner surface of the motor case 9 and the motor 6.
4 is interposed so as to bring this movable contact 24a into contact with and away from a cathode lead terminal 25 provided within the razor grip portion 1.

Now, in the normal state where the drain lid opening/closing operation ring 8 is in the switch-off position where the inward protrusion 18a of the rotary moderation arm 18 is engaged with the first engagement groove 19, the switch pin operation cam piece 22 is in the switch pin press release part. Outer end 23 of open/close switch pin 23 22b
The movable contact 24a of the switch terminal 24 is located at position a to bring the open/close switch pin 23 into a non-pressed state.
is separated from the lead terminal 25. The drain lid opening/closing operation ring 8 was slid around the motor case 9 using the operation knob 7, and the inward protrusion 18a of the rotary moderation arm 18 was engaged with the second engagement groove 20 and the third engagement groove 21. When the switch is in the on position and the water passage cover open position, the switch pin operating cam piece 2
2 presses and moves the open/close switch pin 23 inward of the motor case 9 with the switch pin pressing part 22a, so the switch terminal 24 receives the pressing force of the pin 23 and brings the movable contact 24a into contact with the lead terminal 25, turning the switch on. do.

In Figures 2 to 4 and Figure 9,
The upper half of the head 2b has a circular hair tray 26 and a hair tray 26.
It consists of a rotary inner cutter 28 mounted on the top via an inner cutter holder 27, and a dome-shaped mesh outer cutter 30 mounted on the hair receiving tray 26 via an outer cutter holder 29. The hair tray 26 has a boss 3 in the center of this inner bottom surface.
1, the inner cutter holder 27 is rotatably inserted into its boss 31, and a screw 33 is carved on the inner peripheral surface of the peripheral wall 32 so that the cross section of the hair receiving tray 26 has an inverted V shape.
The outer blade holder 29 is removably screwed into 2. Further, this hair receiving tray 26 has a drainage port 34 formed in a part of its peripheral wall 32.

As shown in FIGS. 7 and 8, the hair tray 26
A circular bottom plate 35 is integrally joined with screws 36 to the outer bottom side of the holder. The bottom plate 35 has a substantially rectangular alignment hole 37 opened in the diametrical direction, and has wedge-shaped engaged pieces 38 at mutually facing corners of the alignment hole 37.

In the hair receiving tray 26, between the drain port 34 of the peripheral wall 32 and the bottom plate 35, a drain lid 41 having an L-shaped cross section and having an opening 39 that matches the drain port 34 and a blind wall portion 40 is provided with a certain stroke in the circumferential direction. It is inserted so that it can slide freely. The drain cover 41 is always urged to close by a spring 42 so as to close the drain port 34 with the blind wall portion 40. Bottom plate 3 facing below the drain lid 41
A drain lid operation port 43 is opened in a part of 5.

Thus, this upper half head 2b is mounted on the upper lid 5 of the lower half head 2a. For this installation, the alignment holes 37 of the bottom plate 35 of the hair catcher 26 are fitted into the substantially rectangular alignment protrusions 44 provided on the upper surface of the upper cover 5 in the diametrical direction to align the drain opening 35. is positioned on the rear side of the razor head 2. In addition, a drive shaft 10 protruding from the center of the upper lid 5 has a boss 3.
1, and the inner cutter holder 27 is connected to the drive shaft 10 via the driver 45 which is fitted and fixed onto the drive shaft 10.
A drain lid opening/closing pin 16 that is connected to the upper lid 5 and protrudes from the upper lid 5 fits into the drain lid water control port 43. After that, the engaging pieces 46 protruding from the upper lid 5 are inserted into the hair receiving tray 26.
The upper half head 2b and the lower half head 2a are bayonet connected by engaging the engaged pieces 38 on the lower surface side.

The bayonet connection can be performed by sliding an operating knob 47. That is,
The engagement piece 46 protruding from the upper lid 5 is integrally formed with an upper half head attachment/detachment operation ring 48 rotatably disposed above the drain lid opening/closing operation ring 8 on the motor case 9. A knob 47 is integrally formed and is inserted into the cutout 49 of the lower half head 2a.
It is visible from outside. When the upper half head attachment/detachment operation ring 48 is slid in the circumferential direction by a certain stroke using the operation knob 47, the engagement pieces 46, which are integrated with the ring 48, rotate together with the engagement piece 4.
Upper half head 2 in taper grooves 46a and 46a of 6 and 46
The engaged pieces 38 of the bottom plate 35 of b are engaged, and the upper half head 2b and the upper lid 5 are bayonet connected.
To remove the upper half head 2b, slide the operation knob 47 together with the operation ring 48 in the opposite direction, and the engagement pieces 46, which are integral with the ring 48, move in the same direction to remove the engagement. The engaged pieces 38, 38 are pulled out from the tapered grooves 46a, 46a of the pieces 46, 46. Now the upper half head 2b is changed to the lower half head 2a
The drain cover opening/closing pin 16 is removed from the drain cover operation port 43 at the bottom of the upper half head 2b.

When the upper half of the head 2b is attached, as shown in FIG. To press the movable contact 24a of the switch terminal 24 comes into contact with the lead terminal 25, the motor 6 is driven, and the inner cutter 28 is rotated for use. At this time, since the razor head 2 is inclined forward with respect to the razor grip part 1, it is easy to apply the outer cutter 30 to the skin at an appropriate angle.

When washing with water, if the operating knob 7 is slid one more step in the sliding direction A together with the drain lid opening/closing operation ring 8, the drain lid opening/closing pin 16 integrated with the ring 8 is moved to one end of the drain lid 41 in the closed state. The opening 39 of the drain cover 41 and the drain port 34 are pressed against each other against the spring 42, as shown in FIG.
When these match, the drain port 34 can be opened.
With the drain port 34 in the open state and the inner cutter 28 in the driven state, as shown in FIG. The razor head 2 is placed under the water faucet H so that the drain port 34 faces upward and the drain port 34 faces downward. When tap water is poured through the numerous hair introduction holes of the outer blade 30, the inner blade 2
The hair adhering to the hair 8 and the hair collected in the hair receiving tray 26 flow out from the drain port 34 together with water. To temporarily store water in the bristle tray 26 for washing or to close the drain cover 41 after washing, use the thumb of the hand holding the razor grip 1 to move the operation knob 7 to the drain cover opening/closing operation ring. 8 in the opposite sliding direction to the original switch-off position, the motor 6 stops, and the drain cover 41 returns to its original position by the force of the spring 42 as the drain cover opening/closing pin 16 retreats. The drain port 34 is blocked by the blind wall portion 40 of the drain.

The razor head may have a built-in vibrating inner cutter in addition to the built-in rotary inner cutter 28. In this case, power is transmitted to the vibrating inner cutter from the drive shaft 10 via the eccentric portion 45a of the driver 45.

The drain port 34 may be provided in the outer blade holder 29 instead of being provided in the hair receiving tray 26.

The drain lid 41 can be of a rotating type instead of a sliding type.

The operation knob 7 for opening and closing the drain cover may be configured separately from the switch operation knob.

As explained above, in the water-washable electric shaver of this invention, the razor head 2 is connected to the razor grip part 1.
Because it is tilted forward by a certain angle,
Not only is it easy to apply the outer blade 30 to the skin and is convenient to use, but the razor head 2 is placed below the water faucet H so that the outer blade 30 can easily receive tap water when washing with the razor grip 1 approximately horizontal. It can be tilted upward and can be easily washed with water. In particular, in this invention, the drain port 34 is placed on the rear side of the razor head 2 in the forward tilted state, and the operation knob 7 for opening and closing the drain port 34 is placed on the front side, so that when washing with water, the above-mentioned Since the outer cutter 30 can be tilted upward and the drain port 34 can be directed downward, hair and water flowing out from the drain port 34 are prevented from falling directly below and flowing to the razor grip 1. This has the advantage that the razor grip part 1 can be held safely without slipping of the hand due to soaking wetness, the razor grip part 1 is less likely to be soiled with hair debris, and the razor grip part 1 only needs to be lightly wiped after washing with water. On the other hand, since the operation knob 7 faces upward in the opposite direction, the operation knob 7 can be manually operated with the thumb of the hand holding the razor grip 1 during washing water, and the drain port 34 can be operated manually.
It has the advantage that it can be easily opened and closed, and water can be prevented from entering through the mounting portion of the operating knob 7 as much as possible.

[Brief explanation of drawings]

The drawings show an embodiment of the flushable electric shaver according to the invention, in which Figure 1 is a side view of the flushable electric shaver, Figure 2 is an exploded slope view, and Figure 3 is a side view of the flushable electric shaver.
The figure is a longitudinal side view, Fig. 4 is a longitudinal front view, Fig. 5 is a - line sectional view in Fig. 4, Fig. 6 is a - line sectional view in Fig. 4, and Fig. 7 is a - line sectional view in Fig. 3. 8 is a sectional view of the drain lid in the closed state corresponding to FIG. 7; FIG. 9 is an exploded perspective view of the hair catcher, bottom plate and drive unit;
FIG. 0 is a side view showing the washing state of the water-washable electric shaver. 1...Razor grip part, 2...Razor head,
7...Operation knob, 28...Inner blade, 30...Outer blade,
34...Drain port, 41...Drain cover.

Claims (1)

[Scope of Claim for Utility Model Registration] A razor head 2 having inner and outer blades 28 and 30 is inclined forward at a certain angle α with respect to the razor grip 1, and a drain port is provided on the rear side of the razor head 2. 34 and a drain lid 41 for opening and closing the same, and an operation knob 7 for opening and closing the drain lid 41 on the front side, and the angle α is such that the razor grip 1 is held substantially horizontally and on the front side thereof. When the outer cutter 3 is placed in an upward position, the outer cutter 3
A washable electric shaver characterized by being set at an angle such that 0 is in an upwardly inclined position.