JPS628191B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to an electric shaver, in which the inner blade is rubbed against the inner surface of the outer blade for shearing. This invention relates to a beard waste storage chamber for storing beard waste.

(Prior art) Conventional electric shavers of this type are, for example,
As described in Japanese Patent No. 29802, a recess is formed between the outer cutter stand and the inner circumferential wall surface of the outer cutter case, and hair scraps are collected in the recess.

(Problems to be Solved by the Invention) In the above-mentioned structure of the conventional electric shaver, the beard debris accumulated in the recess is blown away by the wind generated by the rotation of the rotating inner cutter base. There is a problem in that the beard debris does not adhere only to the recessed portions, and most of the beard debris accumulates on the outer cutter base, making it time-consuming to remove the beard debris.

For example, as described in Japanese Utility Model Application Publication No. 48-95886, a structure is known in which a beard waste storage section is formed by making the component structure complicated, but this structure takes time and effort to assemble, and furthermore, Showa 48-75895
As described in the above publication, a structure incorporating a beard waste storage case for storing beard waste is also known, but when disposing of beard waste, the storage case must be removed, and after removing the beard waste, the storage case must be replaced. Moreover, it is necessary to separately dispose of the beard debris attached to the outer cutter case, etc., which poses a problem in that it takes time and effort to dispose of the beard debris.

The present invention has been developed in view of the above-mentioned problems, and it is possible to securely capture and store beard debris, the beard debris storage chamber is exposed to the outside by removing the outer cutter case, and the inner cutter base is used for cleaning the beard debris. To provide an electric shaver that can be easily cleaned without having to be removed.

[Structure of the invention]

(Means for Solving the Problems) The electric shaver of the present invention includes an outer cutter stand, an outer cutter case that is detachably held on the outer cutter stand and has an outer cutter attached to an opening end surface, and Equipped with a rotating inner cutter stand with an inner cutter that is rubbed against the inner surface of the outer cutter,
The outer wall surface of the outer peripheral wall of the outer cutter stand is located outside the outer periphery of the whisker introduction hole group of the outer cutter, and a whisker waste storage chamber is provided between the outer wall surface of the outer peripheral wall and the inner wall surface of the outer cutter case. The outer peripheral part of the rotating inner cutter stand is brought close to the upper end of the outer peripheral wall of the outer cutter stand without protruding toward the hair scrap storage chamber, and the upper end of the outer peripheral wall of the outer cutter stand is connected to the rotary stand. It is characterized by being covered with

(Function) In the electric shaver of the present invention, when the inner cutter base rotates, the inner cutter shears the beard that has entered inward from each beard introduction hole of the outer cutter, and the sheared beard waste is removed by the rotation of the inner cutter. It is scattered around the outer periphery by the centrifugal force of Exhaust air is generated from the outer blade introduction holes, but the centrifugal force due to the rotation of the inner cutter base is generated in the exhaust air, and the whisker debris is removed from the outer cutter base outside of the outer periphery of the outer cutter whisker introduction holes. The beard chips are transferred to the outside of the outer peripheral wall of the outer cutter table, and the beard scraps transferred to the outside of the outer peripheral wall of the outer cutter stand fall into the beard scraps storage chamber due to a decrease in centrifugal force and are deposited. Exhaust air is not discharged outward from the whisker introduction hole of the outer blade. In addition, the upper end of the outer peripheral wall of the outer cutter stand is covered with a rotating inner cutter stand, and the wind generated inside the outer peripheral wall of the outer cutter stand due to the rotation of the inner cutter stand is directed to the outside of the outer peripheral wall of the outer cutter stand. Since the beard debris does not flow into the formed beard debris storage chamber, the beard debris accumulated in the beard debris storage chamber is scattered by the wind generated inside the outer circumferential wall of the outer cutter base as the inner cutter base rotates. There is no scattering inside the outer peripheral wall of the outer cutter stand.

(Embodiment) Next, the configuration of an embodiment of the present invention will be described with reference to FIG. 1 of the drawings.

Reference numeral 1 denotes an upper base plate that is attached to the electric shaver main body (not shown), and in the center of this base plate 1 there is an insertion hole 2 through which the rotating shaft of the electric motor housed in the main body is inserted.
is formed.

Further, 3 is an outer cutter stand fixed to the upper surface of the base 1, and an annular outer peripheral wall 4 is formed on the outer peripheral part of the upper surface.
An annular projecting edge 5 is integrally formed on the upper edge of this outer peripheral wall 4.

In addition, the outer cutter base 3 is provided with fitting portions 7 that open left and right on the outer circumferential surface and allow the locking body 6 to be inserted into the upper surface of the base 1 so as to be freely advanced and retractable. The upper edge of the distal end of this locking body 6 is formed into a downwardly inclined engagement guide surface 8, and the lower edge is formed into a locking portion 9.
Further, this locking body 6 is biased by a spring rod 10 stretched between the inner end of the insertion portion 7 and the inner end of the locking body 6 in a direction such that its tip protrudes from the outer circumferential surface. .

Next, 11 is an outer blade case, which is formed in an annular shape.
A thick protrusion 12 is formed in an annular shape on the inner periphery of the upper end of the outer cutter case 11, and a groove 14 is formed on the inner periphery of the protrusion 12 to engage the periphery of the reticulated outer cutter 13. A retaining ring 15 that holds the peripheral edge of the outer cutter 13 is fitted into the groove 14.

The outer surface of the outer circumferential wall 4 of the outer cutter stand 3 is located outside the outer circumference of the group of hair introduction holes 16 of the outer cutter 13. Further, the lower edge of the protrusion 12 of the outer cutter case 11 is formed into a whisker waste guiding surface 17 that is inclined downwardly toward the outside. The outer cutter case 1 is connected continuously to this whisker waste guide surface 17.
A beard waste storage chamber 20 is formed between the inner wall surface 18 of the blade 1 and the outer wall surface 19 of the outer peripheral wall 4 of the outer cutter stand 3. The bottom of the beard waste storage chamber 20 is formed by an annular protrusion 21 protruding from the inner wall surface 18 of the outer cutter case 11 and an annular protrusion 22 protruding from the outer wall surface 19 of the outer cutter stand 3. Furthermore, a locking protrusion 23 is formed at the lower part of the inner wall surface 18 of the outer cutter case 11, the lower edge of the locking protrusion 23 is formed into an inclined engagement guide surface 24, and the upper edge is formed into a locking step. 25.

Reference numeral 26 denotes a rotating inner cutter stand attached to the rotating shaft of the electric motor (not shown), and an inner cutter 27 that rubs the inner surface of the outer cutter 13 is attached to this rotary inner cutter stand 26. Further, a concave groove 28 is formed in an annular shape on the lower surface of the upper outer periphery of the inner cutter stand 26 so that the protrusion 5 of the outer peripheral wall 4 of the outer cutter stand 3 is exposed.
The outer circumferential portion of the outer cutter stand 3 does not protrude above the outer wall surface 19 of the outer circumferential wall 4 of the outer cutter stand 3 to the upper end of the outer circumferential wall 4 of the outer cutter stand 3 and the upper end of the inner cutter stand 26. The upper end portion of the outer peripheral wall 4 of the outer cutter stand 3 is covered with the upper end portion of the outer peripheral wall 4 of the outer cutter stand 3.

Next, the operation of this embodiment will be explained.

When the outer cutter case 11 is fitted to the outer cutter base 3, the engagement guide surface 24 of the locking protrusion 23 of the outer cutter case 11 engages with the engagement guide surface 8 of the locking body 6, and the locking body 6 is rotated. When the locking step 25 of the locking protrusion 23 reaches the position of the locking part 9 of the locking body 6 by retreating against the spring rod 10, the locking body 6 is advanced by the spring rod 10 and is locked. The outer cutter case 11 is held on the base 1 by the locking stepped portion 25, and the inner cutter 27 is held on the outer cutter case 1.
The inner surface of the outer cutter 13 of No. 1 is contacted. Also, the outer blade stand 3
A beard waste storage chamber 20 is formed between the outer wall surface 19 of the outer peripheral wall 4 and the inner wall surface 18 of the outer cutter case 11, and the bottom of this beard waste storage chamber 20 is located between the outer cutter case 11 and the outer cutter stand 3. The inner cutter base 26 is formed by the protrusions 21 and 22, and the protrusion 5 of the outer cutter base 3 faces the concave groove 28 of the inner cutter base 26, so that the inner cutter base 26 is formed at the upper end of the outer peripheral wall 4 of the outer cutter base 3.
The outer periphery of the outer cutter holder 3 approaches and the upper end of the outer periphery wall 4 of the outer cutter stand 3 is covered.

When the electric motor is driven in this state, the inner cutter stand 26 is rotated, and when the inner cutter stand 26 is rotated, the inner cutter 27 shears the hairs that have entered inward from each hair introduction hole 16 of the outer cutter 13. The generated beard debris is scattered toward the outer circumferential side by the centrifugal force caused by the rotation of the inner cutter 27, and is stored and deposited in the beard debris storage chamber 20 of the outer cutter case 11. That is, the rotation of the inner cutter stand 26 causes the outer cutter 1 to rotate.
Exhaust air (Fig. 1a) is generated which is sucked in through the whisker introduction hole 16 at the center of the outer cutter 13 and exhausted from the whisker introduction hole 16 on the outer circumferential side of the outer cutter 13. The beard debris is transferred to the outside of the outer peripheral wall 4 of the outer cutter stand 3 outside the outer periphery of the group of whisker introduction holes 16 of the outer cutter 13 by the exhaust air, and is transferred to the outside of the outer peripheral wall 4 of the outer cutter stand 3. The transferred beard debris falls into the beard debris storage chamber 20 due to a decrease in centrifugal force and is deposited therein. Further, since the outer wall surface 19 of the outer circumferential wall 4 forming the beard debris storage chamber 20 is located outside the outer circumference of the group of whisker introduction holes 16 of the outer cutter 13 of the outer cutter case 11, the upper part of the beard debris storage chamber 20 is The exhaust air (Fig. 1a) The beard debris does not flow into the beard debris storage chamber 20, and the beard debris accumulated in the beard debris storage chamber 20 is not affected by the exhaust wind at all. That is, the beard debris accumulated in the beard debris storage chamber 20 will not be blown away by the exhaust air, or will not be scattered and discharged outward from the beard introduction hole 16 of the outer cutter 13. The upper end of the outer peripheral wall 4 of the outer cutter stand 3 is covered with a rotating inner cutter stand 26, and the wind generated inside the outer peripheral wall 4 of the outer cutter stand 3 due to the rotation of the inner cutter stand 26 is removed from the outer cutter stand. Since the beard debris accumulated in the beard debris storage chamber 20 is not flowed into the outside of the outer circumferential wall 4 of the outer cutter base 3, the beard debris accumulated in the beard debris storage chamber 20 is removed by the wind ( As shown in FIG. 2b), the particles are not scattered and are not scattered inside the outer peripheral wall 4 of the outer cutter stand 3.

For example, as shown in FIG. 5, if the outer wall surface 19 of the outer circumferential wall 4 of the outer cutter stand 3 is located closer to the center than the outer circumference of the group of whisker introduction holes 16 of the outer cutter 13, the upper part of the whisker waste storage chamber 20 When the beard introduction hole 16 is located, the beard waste accumulated in the beard waste storage chamber 20 is scattered by the exhaust air generated by the rotation of the inner cutter stand 26, and the scattered beard waste is transferred to the outer circumference side beard introduction hole 16 of the outer cutter 13. It is scattered outward from the whisker introduction hole 16 by the wind exhausted from the whisker introduction hole 16.

In addition, when removing beard debris after using the razor, when the locking body 6 is moved backward against the spring rod 10 using the operation part of the locking body 6 (not shown), the locking protrusion between the locking body 6 and the outer cutter case 11 is removed. 23 is disengaged, and the outer cutter case 11 can be removed. When this outer blade case 11 is removed, the beard waste storage chamber 20 is exposed.
The outer wall surface 19 of the outer peripheral wall 4 of the outer cutter stand 3 and the outer cutter case 1
Hair debris attached to the inner wall surface 18 of 1 can be easily removed.

Next, the configuration of another embodiment will be explained with reference to FIG. 3 of the drawings.

In the electric shaver having the structure of the embodiment shown in FIG. 1, a beard debris attaching body 30 is attached to the beard debris storage chamber 20 on the inner wall surface 18 of the outer cutter case 11 to extend to the beard debris guiding surface 17. The beard debris introduced into the debris storage chamber 20 can also be attached to the beard debris attaching body 30 to facilitate the disposal of the beard debris.

Next, the configuration of another embodiment will be explained with reference to FIG. 3 of the drawings.

In the configuration of the electric shaver shown in FIG. 1, vertical ribs 31 are formed at appropriate intervals on the inner wall surface 18 of the outer cutter case 11 to facilitate the disposal of beard debris stored in the beard debris storage chamber 20. You can also do that.

〔Effect of the invention〕

According to the present invention, since the upper part of the whisker debris storage chamber does not directly face the exhaust air path, the whisker debris is scattered outward from the whisker introduction hole of the outer blade by the wind generated by the rotation of the inner blade. The centrifugal force caused by the rotation of the inner cutter stand transports the beard swarf outward from the outer peripheral wall of the outer cutter stand and securely stores and deposits it in the beard waste storage chamber.When cleaning the beard waste, the outer cutter case can be removed. The beard waste storage chamber is exposed, making it easy to dispose of the beard waste, and since the upper end of the outer peripheral wall of the outer cutter stand is covered with the rotating inner cutter stand, the outer peripheral wall of the outer cutter stand is rotated by the rotation of the inner cutter stand. The wind generated inside the beard waste storage chamber does not flow into the beard waste storage chamber, and since the rotating inner cutter stand is not protruded toward the beard waste storage chamber side, no wind is generated in the beard waste storage chamber due to the rotation of the rotary inner cutter stand. The beard debris accumulated in the beard debris storage chamber is not scattered, and the beard debris does not enter the inside of the outer peripheral wall of the outer cutter stand, making it easier to dispose of the beard debris and increasing the number of parts. It is also easy to assemble.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of a part of an electric shaver showing an embodiment of the present invention, FIG. 2 is a sectional plan view of a part of the outer cutter stand and the outer cutter case, and FIGS.
The figures are longitudinal sectional front views of a portion of an electric shaver showing other different embodiments of the present invention, and FIG. 5 is a longitudinal sectional front view of a portion of the electric shaver on which the present invention is based. 3. Outer cutter stand, 4. Outer peripheral wall of outer cutter stand 3, 11. Outer cutter case, 13. Outer cutter, 16. Beard introduction hole, 18.
‥Inner wall surface of outer cutter case 11, 19‥Outer wall surface of outer peripheral wall 4, 20‥Beard waste storage chamber, 26‥‥Inner cutter stand, 27
..Inner blade.

Claims (1)

[Scope of Claims] 1. An outer cutter stand, an outer cutter case that is detachably held by the outer cutter stand and has an outer cutter attached to the opening end surface, and an inner cutter that slides against the inner surface of the outer cutter of the outer cutter case. a rotary inner cutter stand provided with a blade, the outer wall surface of the outer peripheral wall of the outer cutter stand is located outside the outer periphery of the whisker introduction hole group of the outer cutter, and the outer wall surface of the outer peripheral wall and the outer cutter A hair scraps storage chamber is formed between the inner wall surface of the case and the outer peripheral part of the rotary inner cutter stand is brought close to the upper end of the outer peripheral wall of the outer cutter stand without protruding toward the hair scraps storage chamber side. An electric shaver characterized in that the upper end of the outer peripheral wall of the outer cutter stand is covered with a rotating inner cutter stand.