JP5879531B2 - Electric razor - Google Patents

Description

  The present invention relates to an electric razor for reciprocating an inner blade relative to an outer blade.

A reciprocating electric razor, which is a kind of electric razor, is designed to shave hair by reciprocating one of a pair of shaving blades with respect to the other based on the reciprocating motion of a driver.
Patent Document 1 discloses an electric shaver for shaving in which an outer blade is provided at an end portion of a housing and an inner blade block reciprocates inside the outer blade.

  Patent Document 2 discloses an electric razor that cuts eyebrows and the like with a comb blade-shaped fixed blade and a comb blade-shaped movable blade that reciprocates with respect to the fixed blade.

JP-A 63-5789 JP-A-10-151286

  In the electric razor disclosed in Patent Document 1, the outer blade and the inner blade block are provided in a direction orthogonal to the longitudinal direction of the housing. Therefore, even if the housing has a box shape or the housing has a grip shape, the housing, the outer blade and the inner blade block are T-shaped. Therefore, there is a problem that there is a limit to downsizing the electric razor.

  On the other hand, the electric razor disclosed in Patent Document 2 is smaller than that of Patent Document 1, but the fixed blade and the movable blade are comb blade-shaped, so to shave the razor with this electric razor, It is necessary to slide the tip edge of the fixed blade and the movable blade in only one direction along the skin surface, and it is necessary to pay attention to how to apply it to the skin. become longer.

  In addition, the blade cannot be shaved unless the fixed blade and the movable blade are slid obliquely, and the fixed blade has a large thickness because of its structure. By that time, I can't shave my hair shortly.

  In addition, since the electric razor disclosed in Patent Document 2 treats body hair different from that of a heel in the first place, when it is used for shaving, it is applied to the unevenness or flat part of the skin where the heel is growing. The tip of the comb-shaped fixed blade may bite into the skin and damage the skin.

Furthermore, when moving along the skin, if there is a short wrinkle, it becomes a great resistance to the comb-shaped fixed blade, and it is not possible to shave smoothly.
Thus, since the electric razor disclosed in Patent Document 2 has a different use in the first place, it does not have a function as a tool for shaving a heel and is not suitable for shaving a heel.

  An object of the present invention is to provide an electric razor that can efficiently shave a scissors with an inner blade that reciprocates and that can further reduce the size of a main body.

  An electric razor according to an embodiment of the present invention includes a main body having an elongated shape, a housing portion that is a concave portion, a head portion integrally formed with the main body at a distal end side of the main body, and a head portion. An outer blade to be attached, an inner blade disposed inside the head portion and facing the outer blade, the outer blade mounting base supporting the outer blade and the inner blade mounting base supporting the inner blade A state where the inner blade can reciprocate with respect to the outer blade so that the inner blade is along the longitudinal direction of the outer blade is formed by being coupled, and a blade block disposed in the housing portion and the inner blade are A driving device that reciprocates with respect to the outer blade, and a detachable structure that attaches the blade block to the head portion and that can detach the blade block from the head portion, the longitudinal direction of the outer blade Is the length of the body The blade block is disposed in the accommodating portion so as to be inclined with respect to the head portion, and the head portion is thinner than the main body, whereby the shape formed by the main body and the head portion is It is a rod shape that tapers toward the tip of the head portion.

  According to an example of an electric razor, it is possible to efficiently shave the eyelid with an inner blade that reciprocates, and further, the main body can be downsized.

FIG. 3 is a perspective view of the electric razor according to the first embodiment. FIG. 2 is a perspective view of the electric razor of FIG. 1 viewed from the bottom side. FIG. 2 is a cross-sectional view of the electric razor in FIG. 1. FIG. 2 is a perspective view of a state in which a main body and a cap of FIG. 1 are coupled. FIG. 3 is a perspective view of a state in which the blade block of FIG. 2 is separated from the head portion. FIG. 6 is an enlarged view of the blade block of FIG. 5. FIG. 7 is a cross-sectional view of the blade block of FIG. 6. FIG. 7 is an exploded perspective view of the blade block of FIG. 6. FIG. 7 is a plan view of the outer blade of FIG. 6. FIG. 10 is a cross-sectional view of the outer blade of FIG. 9. These are the perspective views of the blade block of 2nd embodiment. FIG. 12 is a perspective view of the outer blade mount of FIG. 11. FIG. 12 is a plan view of the blade block of FIG. 11. FIG. 12 is a cross-sectional view of the blade block of FIG. 11. FIG. 12 is a cross-sectional view showing the relationship between the blade block of FIG. 11 and the scissors. The state before contacting the inner protrusion, (b) is the state where the heel is raised by the guide protrusion, and (c) is the state where the heel is guided by the slit). These are sectional drawings which show the relationship between the blade block which does not have a guide protrusion, and a ridge ((a ) Is a state before the heel is in contact with the outer blade, (b) is a state in which the heel is in contact with the outer blade, and (c) is a state in which the heel is embedded between the outer blade and the skin surface). These are the perspective views of the outer blade of 3rd embodiment. These are the top views of the outer blade of 3rd embodiment. These are sectional drawings of the outer blade of the third embodiment. These are sectional drawings of the outer blade of a modification.

(An example of the form that an electric razor can take)
[1] An electric razor according to an aspect of the present invention includes a main body having an elongated shape, a housing portion that is a concave portion, and a head portion integrally formed with the main body on a distal end side of the main body; An outer blade that is attached to the head portion, and an inner blade that is disposed inside the head portion and has an inner blade that faces the outer blade, and that supports the outer blade and an inner blade that supports the inner blade A state in which the inner blade can reciprocate with respect to the outer blade so that the inner blade is along the longitudinal direction of the outer blade is formed by being coupled to a base, and a blade block disposed in the housing portion; A drive device that reciprocates a blade with respect to the outer blade; and a detachable structure that attaches the blade block to the head portion, and that can be detached from the head portion. The longitudinal direction of the main body The shape formed by the main body and the head part is inclined with respect to the longitudinal direction, and the blade block is disposed in the housing part along the head part, and the head part is thinner than the main body. It is in the shape of a bar that tapers toward the tip of the head.
[2] According to an example of the electric shaver, the shape of the main body is an elongated cylindrical shape.
[3] An example of the electric razor further includes a plurality of guide protrusions formed on the outer blade mount and arranged in the longitudinal direction of the outer blade.
[4] An example of the electric razor further includes a cap that covers the head portion.

(First embodiment)
The electric shaver shown in FIGS. 1 and 2 is provided with a head portion 3 on which the blade block 2 can be attached at the distal end portion of an elongated cylindrical body 1, and a cap 4 covering the head portion 3 is detachable. To be attached. As shown in FIG. 4, when the cap 4 is fitted to the main body 1, the main body 1 and the cap 4 have a round bar shape with continuous outer peripheral surfaces.
The head portion 3 protrudes so as to extend the main body 1 in the longitudinal direction, and is formed in a rectangular parallelepiped shape with a width smaller than the diameter of the main body 1. As shown in FIG. 3, an angle x of, for example, about 15 degrees is set between an extension line E1 of the outer surface of the main body 1 and an extension line E2 of the shaving surface of the head portion 3. Accordingly, the shaved surface of the head portion 3 is formed on a slope closer to the extension of the central axis of the main body 1 toward the end of the shaved surface with respect to the main body 1, and the shaved surface with the main body 1 held, that is, an outer blade 5 described later It is easy to apply the upper surface of the skin to the skin.

  As shown in FIG. 5, the blade block 2 can be attached to and detached from the head portion 3. A specific configuration of the blade block 2 will be described with reference to FIGS. As shown in FIG. 8, the blade block 2 includes an outer blade 5, an inner blade 6, an inner blade mounting base 7, and an outer blade mounting base 8.

  The inner blade 6 is formed by bending a metal plate into a U-shaped cross section, and mounting holes 9 are formed on both sides thereof. A large number of slits 6 a are provided on the upper surface of the inner blade 6 so as to continue to both sides.

  The inner blade mounting base 7 is formed with a width that can be inserted between the sides of the inner blade 6 by a synthetic resin, and the side surface of the inner blade mounting base 7 can be fitted into the mounting hole 9 of the inner blade 6. Part 10 is formed. Then, when the inner blade mount 7 is fitted to the inner blade 6 and the fitting protrusion 10 is fitted to the mounting hole 9, the inner blade 6 is attached to the inner blade mount 7.

  The outer blade mounting base 8 is made of synthetic resin and has a pair of side edges 12 extending in a direction perpendicular to the base 11 on both sides of the base 11, and the inner blade mounting base 7 can be held on the base 11. It has become. That is, a pair of protrusions 13 projecting in the same direction as the side edge 12 are formed on both sides of the base 11 in the longitudinal direction, and one end of the pair of coil springs 14 is held by the protrusion 13.

A pair of projections 15 projecting at equal intervals from the projection 13 are formed on the lower surface of the inner blade mount 7, and the other end of the coil spring 14 can be held by the projection 15.
Further, a fitting protrusion 16 that protrudes in the front-rear direction is formed in the vicinity of the base end of the side 12 of the outer blade mount 8.

  The outer blade 5 is formed by bending a metal plate into a U-shaped cross section, and has a width that can accommodate the inner blade 6, and mounting holes 17 are formed at both longitudinal ends of both sides thereof. ing. And the upper surface of the outer blade 5 is formed in a flat surface, and many slits 5a connected to both sides are provided in the upper surface. These slits 5a extend in a direction orthogonal to the moving direction of the inner blade 6, close at both ends thereof, and are continuous from one end to the other end. Further, there are provided crosspieces positioned between the plurality of slits 5a and supported at both ends.

  The upper surface of the outer blade 5 serving as a shaved surface is a surface located in the middle of the three outer surfaces of the outer blade 5 having a U-shaped cross section. And by making the upper surface of the outer blade 5 into a flat surface, it becomes possible to widen the area which contacts skin and to improve shaving efficiency. In addition, if the contact area to skin can be enlarged, it may not be a perfect flat surface.

  In order to attach the outer cutter 5 to the outer cutter mount 8, the inner cutter 6 is attached to the inner cutter mount 7, and the inner cutter mount 7 is placed on the outer cutter mount 8 via the coil spring 14. Hold on. Then, when the inner cutter 6 is covered with the outer cutter 5 and the attachment hole 17 is fitted into the fitting projection 16, the blade block 2 shown in FIGS. 6 and 7 is formed.

  The fitting protrusion 16 of the outer blade mounting base 8 that fits the mounting hole 17 of the outer blade 5 and the fitting protrusion 10 of the inner blade mounting base 7 that fits the mounting hole 9 of the inner blade 6 are heat-sealed. May be. With such a configuration, the outer blade 5 can be firmly attached to the outer blade mounting base 8, and the inner blade 6 can be firmly attached to the inner blade mounting base 7.

  In this state, as shown in FIG. 7, the coil spring 14 is compressed between the inner blade mounting base 7 and the bottom of the outer blade mounting base 8, and the urging force of the coil spring 14 with the outer blade mounting base 8 as a fulcrum. Thus, the inner blade 6 comes into contact with the outer blade 5. The coil spring may have another configuration having the same function, for example, a leaf spring.

  As shown in FIG. 9, the outer cutter 5 is formed such that the crosspiece width W2 between the slits 5a is larger than the groove width W1 of each slit 5a. Moreover, as shown in FIG. 10, the thickness T of the flat surface portion of the outer blade 5 is formed thinner than the thickness of other portions. As a result, the gap between the skin surface and the inner blade 6 can be reduced and the heel can be shaved short.

  Here, each bar extends from the intermediate surface, which is a shaved surface, to both side surfaces, and is connected to and supported by the wall surface at the bottom of each side surface, so the thickness of the intermediate surface is made thinner than the thickness of the other parts. However, the strength required for the outer blade can be secured.

  In the present embodiment, both side surfaces of the outer blade are perpendicular to the intermediate surface to support the crosspieces, but both side surfaces are not necessarily perpendicular to the intermediate surface. For example, it may be inclined, curved, or formed by a plurality of bent surfaces, and can be appropriately changed within a range in which the strength necessary for the outer blade can be secured. In addition, even if the outer blade is not U-shaped in cross section and does not have one side surface or both side surfaces, if both ends of each crosspiece are supported by being connected to the wall surface etc., the outer blade The necessary strength can be secured.

  Locking recesses 18 are respectively provided on the outer side surfaces of the side edges 12 of the outer cutter mount 8. In addition, a locking portion 19 that protrudes like a hook in a direction away from each other is formed at the tip end of both sides 12.

  As shown in FIG. 5, the head portion 3 of the main body 1 is provided with a housing portion 20 that can house the blade block 2. And as shown in FIG. 3, the accommodating part 20 has the latching | locking part 19 provided in the both sides 12 of the outer blade mounting base 8 of the blade block 2, and the upper part of the blade located above the lower surface of the latching | locking part 19. As shown in FIG. The blade block 2 is formed in a shape that can be accommodated. With such a configuration, since the upper part of the blade block 2 protrudes from the head part 3, it becomes easy to apply the shaved surface to the skin.

A release button 21 is supported on the main body 1 in the vicinity of the base end edge of the housing portion 20 so as to be slidable in the longitudinal direction of the main body 1.
To attach the blade block 2 to the main body 1, the blade block 2 is accommodated in the accommodating portion 20 in a state where the release button 21 is slid to the proximal end side of the main body 1, and the locking portion 19 is opened to the opening edge of the accommodating portion 20. And one locking recess 18 is engaged with the protrusion 22 provided on the inner side surface of the accommodating portion 20.

  When the release button 21 is slid toward the distal end side of the main body 1, the distal end portion of the release button 21 is engaged with the other locking recess 18 of the blade block 2 as shown in FIG. 2 is held in the accommodating portion 20.

  Next, a drive mechanism for reciprocating the inner blade 6 with respect to the outer blade 5 will be described. As shown in FIGS. 6 to 8, a long hole 23 is provided along the longitudinal direction of the outer blade mount 8 at the center of the base 11 of the outer blade mount 8. The inner blade mount 7 is formed with a fitting recess 24 that opens downward.

  As shown in FIG. 3, a battery 25 is accommodated in the base end portion of the main body 1, and a motor 26 is disposed adjacent to the battery 25. As shown in FIG. 2, a switch 27 is supported at the center in the longitudinal direction of the main body 1 so as to be slidable in the longitudinal direction of the main body 1. Then, by sliding the switch 27, the power supply to the motor 26 can be turned on and off to select either the operation state or the stop state of the motor 26.

The rotation of the output shaft 28 of the motor 26 is transmitted to the torque conversion mechanism 29. The torque conversion mechanism 29 converts the rotation of the output shaft 28 of the motor 26 into a reciprocating motion.
A base end portion of an arm 31 is attached to the output shaft 30 of the torque conversion mechanism 29. When the motor 26 rotates, the arm 31 reciprocates along the longitudinal direction of the main body 1.

  The tip of the arm 31 is bent in a direction perpendicular to the longitudinal direction of the arm 31, passes through the long hole 23 of the outer blade mounting base 8, and is fitted into the fitting recess 24 of the inner blade mounting base 7. Has been. Based on the reciprocating motion of the arm 31, the inner blade 6 reciprocates.

Next, the operation of the electric shaver configured as described above will be described.
In the case of shaving with this electric razor, when the motor 26 is operated by operating the switch 27 with the base end portion of the main body 1 being gripped, the inner blade 6 is reciprocated in the outer blade 5. .

  In this state, when the upper surface of the outer blade 5 is applied to the skin surface and the outer blade 5 is reciprocated in the direction perpendicular to the longitudinal direction, the wrinkle enters the slit 6a of the inner blade 6 from the slit 5a of the outer blade 5, The ridge is cut and shaved on the contact surface between the outer blade 5 and the inner blade 6.

  At this time, each bar and slit of the shaving surface are continuously extended from one side of the outer blade to the other side, so that the end of each bar and slit does not hit the skin and hurt the skin. Smooth skin contact can be obtained, and skin-friendly shaving can be realized.

  When the blade block 2 is cleaned after shaving, the release button 21 is slid to the proximal end side of the main body 1. Then, the engagement between the distal end portion of the release button 21 and the locking recess 18 of the blade block 2 is released, and the blade block 2 can be taken out from the housing portion 20.

And the blade block 2 taken out from the accommodating part 20 can be cleaned by washing etc., and the inside of the accommodating part 20 can also be cleaned.
After cleaning, the blade block 2 is housed in the housing portion 20, the tip of the arm 31 is fitted into the fitting recess 24, and one locking recess 18 of the blade block 2 is placed in the protrusion 22 of the housing portion 20. The engaging portion 19 is engaged with the opening edge of the accommodating portion 20. When the release button 21 is slid to the distal end side of the main body 1, the distal end of the release button 21 is engaged with the locking recess 18 of the blade block 2, and the blade block 2 is held in the housing portion 20.

With the electric razor as described above, the following effects can be obtained.
(1) The blade block 2 in which the inner blade 6 reciprocates within the outer blade 5 is attached to the main body 1, and the blade block 2 is moved in the reciprocating direction on the skin surface in a direction perpendicular to the longitudinal direction. By this, it is possible to efficiently shave the heel.
(2) Since the rectangular parallelepiped head portion 3 to which the blade block 2 is attached is provided at the front end portion of the main body 1 in the direction in which the main body 1 is extended, the main body 1 including the head portion 3 can be reduced in size. .
(3) Since the shaving surface of the outer blade 5 attached to the head portion 3 is inclined with respect to the axial direction of the main body 1, more specifically, the tip of the shaving surface is formed on a slope approaching the extension line of the central axis of the main body 1. The shaved surface of the head portion 3 can be easily applied to the skin surface while the main body 1 is held.
(4) Since the thickness of the head part 3 is made smaller than the diameter of the main body 1, the head part 3 can be easily applied to a desired position on the skin surface.
(5) Since the head portion 3 is configured to reciprocate the inner blade 6 within the outer blade 5, the heel is shaved sufficiently shorter than the electric razor disclosed in Patent Document 2 without damaging the skin surface. be able to.
(6) Since the outer blade 5 has a U-shaped cross section and the shaved surface can be made flat, it is easy to apply the shaved surface to the skin.
(7) Since the outer blade 5 and the inner blade 6 are detachable from the head portion 3, the outer blade 5, the inner blade 6 and the head portion 3 can be easily cleaned.

As described above, in the present embodiment, the problem of the electric razor disclosed in Patent Documents 1 and 2 (shave can be shaved but difficult to downsize, but small but unsuitable for shaving) can be solved at the same time. Both shaving performance and downsizing can be achieved. In addition, it is possible to provide an unprecedented user-friendliness such as carrying an electric shaver for shaving in a pocket or pen case of clothing .

(Second embodiment)
11 to 15 show a second embodiment. In this embodiment, a comb-like portion that guides the scissors to the slit 5 a of the outer blade 5 is provided on the outer blade mounting base 8. Other configurations are the same as those in the first embodiment. The same components as those in the first embodiment will be described with the same reference numerals.
As shown in FIG. 11, a connecting frame 32 is provided between the upper ends of the side edges 12 of the outer blade mounting base 8 to form a square frame into which the outer blade 5 can be inserted. The connection frame 32 is formed with a number of guide protrusions 33 protruding upward in a comb shape.

The pitch of the guide protrusions 33 is the same as the pitch of the slits 5a, and the slits 5a are formed between the guide protrusions 33 as shown in FIG.
As shown in FIG. 14, the tip of each guide projection 33 protrudes from the flat surface of the outer blade 5 to a slightly lower position, and a curved surface portion 34 provided at the corner of the upper end of the guide projection 33. Is formed with a diameter sufficiently smaller than the diameter of the curved surface portion 35 provided on both sides of the flat portion of the outer blade 5.

  The operation in the case of shaving a beard using an electric razor provided with such a guide protrusion 33 will be described with reference to FIG. As shown in FIG. 15A, when the flat surface of the outer blade 5 is applied to the skin surface S and moved in the direction of the arrow, even if the heel H is along the skin surface S, FIG. As shown in FIG. 3, the guide protrusion 33 raises the heel H, and the heel H is guided into the slit 5a of the outer blade 5 in this state.

  When shaving without the guide protrusion 33, the eyelid H along the skin surface S is guided to the slit 5a from the state shown in FIG. 16 (a) as shown in FIG. 16 (b). Then, the collar H comes into contact with the slit 5 a of the curved surface portion 35 of the outer blade 5. Then, as shown in FIG.16 (c), the wrinkle H may not be raised, but it may sink between the flat surface of the outer blade 5, and the skin surface S. FIG.

  In this embodiment, since the diameter of the curved surface portion 34 of the guide protrusion 33 is sufficiently smaller than the diameter of the curved surface portion 35 of the outer blade 5, the guide protrusion 33 forms the heel H along the skin surface S as shown in FIG. 15. It is easy to cause wrinkles H along the skin surface S by making contact below the curved surface portion (downward in FIG. 15).

  The guide protrusions 33 may be provided between all the slits 5a, or may be provided by thinning out as appropriate, for example, every five pitches. In the former case, the efficiency of causing wrinkles is relatively high, and in the latter case, skin irritation can be relatively reduced.

  In addition, the height difference between the tip of the guide protrusion 33 and the flat surface can be set as appropriate. However, the smaller the height difference, the higher the elevating efficiency, and the larger the height difference, the smaller the skin irritation. .

Moreover, although the diameter of the curved surface part 34 of the guide protrusion 33 can be set as appropriate, if the diameter is reduced, the wake-up efficiency is increased, and if the diameter is increased, the irritation to the skin can be reduced.
In addition, the upper surface of the guide protrusion 33 has an end closer to the outer blade 5 at the same height as the outer blade 5, and an end farther from the outer blade 5 is inclined lower than the outer blade 5, It may be a curved surface or an arc surface. With such a configuration, the contact with the skin becomes smoother.

As described above, the number of the guide protrusions 33 can be appropriately changed within a range in which the effect of raising is obtained, such as the number, the protrusion height, the diameter of the curved surface part 34, and the upper surface shape.
In the electric shaver of this embodiment, the following effects can be obtained in addition to the effects obtained in the first embodiment.
(1) Since the heel H along the skin surface S can be guided to the slit 5a of the outer blade 5 by the guide projection 33, the heel H along the skin surface S can be easily shaved .

(Third embodiment)
17 to 19 show a third embodiment. In this embodiment, the shape of the outer blade is partially changed with respect to the first embodiment. Other configurations are the same as those of the first embodiment.
As shown in FIGS. 17 and 18, the width W3 of the slit 5a on both sides in the width direction of the outer blade 5 is formed wider than the width W4 in the center portion in the width direction.
Further, as shown in FIG. 19, a chamfered inclined surface portion 36 is formed between the flat surface of the outer blade 5 and the curved surface portions 35 on both sides thereof.

In the electric shaver of this embodiment, the following effects can be obtained in addition to the effects obtained in the first embodiment.
(1) Since the width W3 of the slit 5a on both sides in the width direction of the outer blade 5 is increased, it becomes easier to guide the scissors into the slit 5a. Therefore, the heel can be efficiently shaved.
(2) Since the inclined surface portion 36 is interposed between the flat surface of the outer blade 5 and the curved surface portion 35, the biting of the edge of the slit 5a into the skin surface can be better mitigated in the inclined surface portion 36 and the curved surface portion 35. Can do. Therefore, it is possible to shave the eyelids smoothly while reducing irritation to the skin surface. Further, by increasing the width W3 of the slit 5a on both sides in the width direction of the outer blade 5 and interposing the inclined surface portion 36 between the flat surface of the outer blade 5 and the curved surface portion 35, the respective effects are exhibited simultaneously. In addition, it is possible to efficiently shave the heel and reduce irritation to the skin surface, so that the heel can be shaved more smoothly and satisfactorily.
As for the effect of the slope portion 36, the same effect can be obtained even if the entire upper surface of the outer blade 5 is a gently curved surface portion 37 as shown in FIG.
In addition, even if the slope portion 36 is formed or the upper surface of the outer blade 5 is a gently curved surface portion, considering the pressing against the skin, the contact area with the skin does not decrease, so the shaving efficiency is impaired. Absent. (Rather, the shaving efficiency is improved as the area of the upper surface of the outer blade 5 increases somewhat.)
(Modification)
The configuration of the electric razor shown in the above embodiments is an example of the form that the electric razor according to the present invention can take. The electric shaver according to the present invention may take a form different from the above-described embodiments, for example, as shown below.
-According to an example of a modification, the direction where the slit 5a of the outer blade 5 and the slit 6a of the inner blade 6 extend is an oblique direction which is not orthogonal to the direction of the reciprocating motion of the inner blade 6.
-According to an example of a modification, the structure of each embodiment is combined suitably. According to this configuration, an effect obtained by combining the effects obtained by the embodiments can be obtained.

(Additional note regarding means for solving the problem)
[Appendix 1]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
An electric razor, wherein the main body has an elongated cylindrical shape.
[Appendix 2]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
An electric razor in which the longitudinal direction of the outer blade is inclined with respect to the longitudinal direction of the main body.
[Appendix 3]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
An electric shaver in which the shape of the head portion is a rectangular parallelepiped shape that is thinner than the main body.
[Appendix 4]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
The outer blade is disposed on the front side portion of the head portion,
An electric razor, wherein the back side portion of the head portion is a wall along the longitudinal direction of the main body.
[Appendix 5]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
The main body includes a front-side portion that houses the drive device, and a bottom-side portion that houses a power source that supplies power to the drive device,
The head portion is formed on the tip side of the front portion,
The front portion is thinner than the bottom portion;
An electric razor in which the head portion is thinner than the tip side portion.
[Appendix 6]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
An electric razor further comprising a plurality of guide protrusions arranged in the longitudinal direction of the outer cutter.
[Appendix 7]
The outer blade includes a plurality of bars arranged in the longitudinal direction of the outer blade,
The electric razor according to claim 6, wherein a position of a tip surface of the guide protrusion is lower than a position of a flat surface of the crosspiece.
[Appendix 8]
The outer blade includes a plurality of bars arranged in the longitudinal direction of the outer blade, and a curved surface portion formed at an end of the bar,
The electric razor according to appendix 6, wherein the guide protrusion includes a curved surface portion that is formed at a corner of an upper end portion of the guide protrusion and has a larger curvature than the curved surface portion of the outer blade.
[Appendix 9]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
The outer blade includes a plurality of bars and a plurality of slits alternately arranged in the longitudinal direction of the outer blade,
An electric shaver in which the width of the crosspiece in the longitudinal direction of the outer blade is wider than the width of the slit in the longitudinal direction of the outer blade.
[Appendix 10]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
The outer blade includes a pair of walls extending in the longitudinal direction of the outer blade, a plurality of bars arranged in the longitudinal direction of the outer blade, and a column connecting the end of the bar and the wall,
The razor is thinner than the pillar.
[Appendix 11]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
The outer blade includes a plurality of slits arranged in the longitudinal direction of the outer blade,
An electric razor in which the width of the end portion of the slit is wider than the width of the intermediate portion of the slit.
[Appendix 12]
A body having an elongated shape;
A head part formed on the tip side of the main body;
A blade block that is a block in which an outer blade attached to the head portion and an inner blade disposed inside the head portion and facing the outer blade are combined;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
An electric razor further comprising an attachment / detachment structure capable of attaching the blade block to the head portion and detaching the blade block from the head portion.
[Appendix 13]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head part;
An inner blade disposed inside the head portion and facing the outer blade;
A drive device for reciprocating the inner blade with respect to the outer blade,
The shape formed by the main body and the head portion is a rod shape,
The outer blade and the inner blade are arranged along the head part,
The direction of the reciprocating motion of the inner blade is a direction along the longitudinal direction of the outer blade,
An electric razor further comprising a cap that covers the head portion.
[Appendix 14]
The electric razor according to any one of appendices 1 to 13, wherein a longitudinal direction of the outer blade is inclined with respect to a longitudinal direction of the main body.
[Appendix 15]
An angle formed between a virtual line segment formed by extending the outer surface of the main body in the longitudinal direction of the main body and a virtual line segment formed by extending the upper surface of the outer blade in the longitudinal direction of the outer blade. Is set to a predetermined angle,
The electric razor according to appendix 14, wherein the predetermined angle is an angle at which an upper surface of the outer blade is easily applied to a skin surface.
[Appendix 16]
A blade block is configured by combining the outer blade and the inner blade so that the inner blade can reciprocate with respect to the outer blade,
The electric razor according to any one of appendices 1 to 15, further comprising an attachment / detachment structure capable of attaching the blade block to the head portion and detaching the blade block from the head portion.
[Appendix 17]
The electric razor according to claim 16, wherein an accommodating portion that is a concave portion in which the blade block is accommodated is formed in the head portion.
[Appendix 18]
The electric razor according to appendix 16 or 17, further comprising a release button for removing the blade block from the head portion.
[Appendix 19]
The electric razor according to claim 18, wherein the release button is formed on a base side of the head portion.
[Appendix 20]
The electric razor according to appendix 18 or 19, wherein the release button is a slide-type button, and a sliding direction thereof is substantially the same as a longitudinal direction of the main body.
[Appendix 21]
The main body includes a front-side portion that houses the drive device, and a bottom-side portion that houses a power source that supplies power to the drive device
The head portion is formed on the tip side of the front portion,
The front portion is thinner than the bottom portion;
The electric shaver according to any one of appendices 1 to 20, wherein the head portion is thinner than the tip portion.
[Appendix 22]
The electric razor according to any one of appendices 1 to 21, further comprising a cap that covers the head portion.
[Appendix 23]
The electric shaver according to appendix 22, wherein the main body and the cap have a rod shape in a state where the cap is attached to the main body.
[Appendix 24]
The main body includes a front-side portion that houses the drive device, and a bottom-side portion that houses a power source that supplies power to the drive device
The head portion is formed on the tip side of the front portion,
The front portion is thinner than the bottom portion;
24. The electric shaver according to appendix 22 or 23, wherein the cap covers the head portion and the front side portion.
[Appendix 25]
A switch for turning on and off the operation of the driving device;
25. The electric shaver according to appendix 24, wherein the switch is formed in the front side portion.
[Appendix A]
A body having an elongated shape;
A head part formed on the tip side of the main body;
An outer blade attached to the head portion and forming a shaved surface;
An inner blade disposed inside the outer blade inside the head portion;
A drive device for reciprocating the inner blade with respect to the outer blade,
An electric razor in which the longitudinal direction of the inner blade and the reciprocating direction of the inner blade are inclined with respect to the longitudinal direction of the main body.
[Appendix B]
The electric razor according to appendix A, wherein the outer blade includes a plurality of slits extending in a direction orthogonal to the reciprocating direction of the inner blade, and a bar positioned between the adjacent slits and supported at both ends.
[Appendix C]
The electric razor according to appendix A or B, wherein a cross-sectional shape of the outer blade is U- shaped .
[Appendix D]
The electric razor according to any one of appendices A to C, wherein a longitudinal direction of the outer blade is inclined with respect to a longitudinal direction of the main body.
[Appendix E]
The electric razor according to any one of appendices A to D, wherein the head portion is thinner than the main body.
[Appendix F]
The electric razor according to any one of appendices A to E, wherein the outer blade and the inner blade have a detachable structure that is removable from the main body.
[Appendix G]
The electric shaver according to any one of appendices A to F, further comprising a comb-shaped guide protrusion that is formed next to the outer blade and guides a ridge to the outer blade.

  1: Body
  2: Blade block
  3: Head part
  4: Cap
  5: Outer blade
  5a: slit
  6: Inner blade
  6a: slit
  7: Inner blade mounting base
  8: Outer blade mounting base
  9: Mounting hole
  10: fitting protrusion
  11: Bottom
  12: Side
  13: Projection
  14: Coil spring
  15: protrusion
  16: fitting protrusion
  17: Mounting hole
  18: Locking recess
  19: Locking part
  20: accommodating section
  21: Release button
  22: Projection
  23: long hole
  24: fitting recess
  25: Battery
  26: Motor (drive device)
  27: Switch
  28: Output shaft
  29: Torque conversion mechanism
  30: Output shaft
  31: Arm (drive device)
  32: Connecting frame
  33: Guide protrusion
  34: Curved surface
  35: Curved surface
  36: Slope
  37: Curved surface
  H: 髭
  S: Skin surface
  E1: Extension line
  E2: Extension line
  x: Angle
  T: thickness
  W1: Groove width
  W2: Cross width
  W3: Width
  W4: Width

Claims (4)

A body having an elongated shape;
A head portion that includes a housing portion that is a concave portion, and is configured integrally with the main body on the distal end side of the main body;
An outer blade that is attached to the head portion, and an inner blade that is disposed inside the head portion and that has an inner blade that faces the outer blade, and that supports the outer blade and an inner blade that supports the inner blade A blade block disposed in the accommodating portion is formed in a state in which the inner blade can be reciprocated with respect to the outer blade so that the inner blade is along the longitudinal direction of the outer blade by being coupled to the mounting base;
A drive device for reciprocating the inner blade with respect to the outer blade;
Attaching the blade block to the head portion, and a detachable structure capable of removing the blade block from the head portion,
The longitudinal direction of the outer blade is inclined with respect to the longitudinal direction of the main body, the blade block is disposed in the housing portion so as to be along the head portion, and the head portion is thinner than the main body. And an electric razor in which the shape formed by the head portion is a bar shape that tapers toward the tip of the head portion . The shape of the main body is an elongated cylindrical shape
The electric razor according to claim 1 . A plurality of guide protrusions formed on the outer blade mounting base and arranged in the longitudinal direction of the outer blade.
The electric shaver according to claim 1 or 2 . A cap for covering the head portion;
The electric shaver according to any one of claims 1 to 3 .

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