JP3721783B2 - Reciprocating electric razor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a reciprocating electric razor, and more particularly to a reciprocating electric razor in which a plurality of blade cassettes each having an outer blade mounted on an outer blade frame are arranged in parallel and each blade cassette is floatable with respect to a main body. is there.
[0002]
[Prior art]
In order to increase the efficiency of shaving the heel by bringing the outer blade into close contact with the skin, a plurality of blade cassettes with the outer blade mounted on the outer blade frame are arranged in parallel, and each blade cassette is floatable with respect to the main body. A reciprocating electric razor is provided.
[0003]
As this type of reciprocating electric shaver, for example,8-323063In the one disclosed in Japanese Patent Publication No. JP-A No. 2000-133260, each blade cassette is housed inside the holding member, and the blade cassette is floated in the holding member.
[0004]
[Problems to be solved by the invention]
However, in the conventional configuration, each blade cassette is protected by the holding member, so there is an advantage that it is strong against the outer blade, but when you shave while looking at the mirror, Since the blade cassette is covered with the holding member, the float state cannot be seen. Accordingly, it is difficult to efficiently apply the outer blade of the blade cassette to the skin. However, if the relationship between the holding member and the blade cassette is reversed so that the blade cassette is floated on the holding member, the movement of the blade cassette can be seen well. However, in this case, since a large amount of wrinkles accumulates at the end of the blade cassette in the direction of reciprocating movement of the inner blade, there is a problem that the scraps are scattered from the gap between the blade cassette and the holding member. Therefore, it is conceivable to reduce the gap between the blade cassette and the holding member. However, when the gap is reduced, the blade cassette cannot float obliquely with respect to the holding member, and the skin As a result, the following performance is poor, and there is a problem that a lot of unshaved parts are generated.
[0005]
The present invention has been made in view of the above points. The object of the present invention is to easily determine the float state of the blade cassette from the outside and improve the skin contact, and from the blade cassette. The object of the present invention is to provide a reciprocating electric shaver that can reduce spillage of waste.
[0006]
[Means for Solving the Problems]
  In order to solve the above-described problems, the present invention provides a plurality of rows of blade cassettes each composed of an outer blade corresponding to an inner blade and an outer blade frame on which the outer blade is mounted in a direction orthogonal to the inner blade reciprocating direction M. And a reciprocating electric razor in which each blade cassette is floatably supported by the holding member 50,Any one of the blade cassettes is configured by a net blade cassette 20 that is held to be movable up and down with respect to the holding member 50 and is attached to the outer blade frame 60 that is fixed to the main body 9 through the holding member 50. The net blade cassette 20 includes an outer blade frame 21 to which the outer blade 12 is attached, and a float support frame 22 that locks the outer blade frame 21, and the inner blade reciprocating movement of the float support frame 22 and the outer blade frame 21. Double walls 5 each having an outer wall portion 26 and an inner wall portion 27 disposed so as to straddle the outer wall 50a of the holding member 50 are provided at both ends in the direction.With this configuration, the double-walled wall 5 holds the chips on the inner side at both ends in the reciprocating direction M of the inner blade where the chips accumulate by driving the inner blade when shaving. Since it can be prevented from spilling and a gap can be secured between the outer wall 50a of the holding member 50 and the double wall 5,NetBlade cassette20The float can be made smooth. furtherNetBlade cassette20Can be seen from the outside and can be brought into contact with the skin in an appropriate state.
[0007]
The double walls 5 at both ends are connected to the inner wall 2.7And outer wall 26The connecting wall 28 is preferably not provided on the side surface where the blade cassettes are adjacent to each other. In this case, the double wall 5 can be reinforced by the connecting wall 28, and Since the connecting wall 28 does not exist on the surface where the blade cassettes are adjacent to each other, the blade cassettes are connected to each other.ApproachIt is easy to make the entire blade smaller in the thickness directionThe
[0008]
Moreover, it is preferable that the double wall 5b is provided in the both ends and outer surface of the inner blade reciprocation direction M of the blade cassette located outside, and in this case, two blade cassettes are provided on the entire circumference of the holding member 50. Heavy wall structure prevents spillingThe
[0009]
Further, it is preferable that the inner blades of the blade cassettes are driven in opposite directions to hold all the blade cassettes on one side wall of the holding member 50. In this case, the inner blades are driven with respect to the holding member 50 by driving the inner blades. The external force always works in the opposite direction, and the force applied to the holding member 50 can be offset, thereby preventing noise and the like.
[0010]
In the blade cassette having a three-head structure in which the slit blade 1 is disposed between the two net blades 11, 11, the outer blade 12 constituting the net blade 11 on the side surface of the slit outer blade 2 adjacent to the net blade 11; Notch corresponding to heat seal projection 100 for fixing outer cutter frame 2184In this case, it is possible to bring the blade cassettes very close to each other in the thickness direction without the heat seal protrusion 100 being obstructed.
[0011]
The net blade cassette 20 is separated into an inner member that locks the outer blade and an outer member that locks the inner member, and the outer member can be fitted from the lower side of the inner member. It is preferable to provide an engaging means for engaging the outer member and the inner member with each other. In this case, the net blade cassette is easy to assemble, and it is damaged and disassembled even when the inner blade push-up force or the outer wall is peeled off. Therefore, sufficient strength can be secured.
[0012]
Further, the skin stretching member 24 is disposed between the inner member and the outer member, and the protrusion 25 projecting inward from the wall surface of the outer member is engaged with the hole 81 provided in the skin stretching member 24. In this case, the shape of the skin-stretching member 24 made of an elastic body having a small dimension in the height direction is not changed by simply engaging the skin-stretching member 24 with the protrusion 25 of the outer member. It becomes possible to easily and reliably hold the small space between the outer member and the inner member.
[0013]
Also, the inner side of the end wall of the holding member 50 in the inner blade reciprocating direction MInIt is preferable to provide the protrusion 110 extending in the lateral direction, and in this case, the protrusion 110 extending in the horizontal direction can further prevent spilling of dust from the gap at the end of the inner blade reciprocating direction M.
[0014]
Further, it is preferable to provide a skin-stretching member 24a made of an elastomer on the upper surface of the end portion of the outer cutter frame 21 in the inner cutter reciprocating direction M. In this case, both ends of the outer cutter frame 21 are also provided by the skin-extending member 24a. The crumpled feeling at the end of the cassette is softened and the skin feel is good, and the skin stretching effect is enhanced.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described.
[0016]
As shown in FIG. 3, the reciprocating electric razor has three blade heads 10 disposed at the upper end of a main body 9, and these three blade heads 10 are simultaneously driven by a linear motor 14. Is. Reference numeral 80 in FIG. 3 denotes a trimmer block.
The basic structure of the blade head 10 will be described in detail with reference to FIGS.
[0017]
As shown in FIG. 3, the blade head 10 includes one slit outer blade 2 and a single comb-shaped slit inner blade 3 that reciprocally moves in sliding contact with the inner surface of the slit outer blade 2. A slit blade 1 and two net blades 11 disposed on both outer sides of the slit blade 1 and provided with a net-shaped outer blade 12 and an inner blade 13 that reciprocally moves in sliding contact with the inner surface of the outer blade 12. It is configured. The slit blade 1 and the net blade 11 can be floated up and down, and the inner blades 3 and 13 corresponding to the outer blades 2 and 12 of the respective blades reciprocate by a linear motor 14 that performs a sliding operation. It is designed to be driven.
[0018]
FIG. 4 shows the configuration of the blade head 10. The net blade cassette 20 is separated into an outer blade frame 21 (inner member) to which the outer blade 12 is attached and a float support frame 22 (outer member) that locks the outer blade frame 21. It can be fitted from below the float support frame 22. The outer blade 12 and the outer blade frame 21 are fixed using the heat seal projection 100. The float support frame 22 is provided with a protruding rib 95 extending downward on the inner surface thereof, and the outer blade frame 21 is engaged with the protruding rib 95 in a lateral wall 96 provided on the outer wall thereof. Engagement holes 97 are provided, and the engagement means is constituted by the engagement between the protruding ribs 95 and the engagement holes 97, and when an external force such as an inner blade pushing-up force or peeling of the float support frame 22 is applied. However, the blade can be held without being broken or disassembled. In the embodiment shown in FIG. 4, protrusions 90 are provided on the outer surface upper portions of both ends in the longitudinal direction of the outer blade frame 21, and the protrusions 90 are engaged with guide grooves 92 provided in the float support frame 22. Therefore, the hooks 93 of the outer blade frame 21 are engaged with the hook grooves 94 of the float support frame 22 to prevent each other from coming off in the vertical direction.
[0019]
Further, as shown in FIG. 7, the inner blade in the net blade cassette 20 is attached to the upper ends of a pair of driver elements 70 protruding from the upper end of the main body 9 in a state of being spring-biased upward. When attached to the main body 9 via the holding member 50 and the outer blade frame 60, the reciprocating vibration of the linear motor 14 built in the main body 9 is brought into contact with the inner blade via the driver 70. 13 Further, the two driver elements 70 projecting from the linear motor 14 are driven in opposite directions, so that the vibration of the main body 9 at the time of driving can be canceled out, and an anti-vibration effect can be obtained. It is. S in FIG. 7 is a switch operation part.
Between the float support frame 22 and the outer cutter frame 21, a skin stretching member 24 having thin elastic ribs 23 for stretching the skin and causing wrinkles as shown in FIG. 4 is disposed. By engaging the protrusion 25 provided on the inner surface of the float support frame 22 with the small hole-shaped hole 81 provided in the skin extension member 24, the skin extension member 24 is connected to the float support frame 22 and the outer blade frame 21. As a result, the skin extension member 24 can be securely locked in a very small space. Further, by making the protrusion 25 of the float support frame 22 into a small protrusion shape, the entire skin-stretching member 24 that is easily bent can be assembled without being changed by the protrusion 25.
[0020]
As shown in FIGS. 4 and 6, a plurality of float spring pieces 52 are integrally protruded upward from the upper edges of both side pieces on the holding member 50. Further, slit holes 48 opened upward are formed in both end walls 53 in the longitudinal direction of the holding member 50, and hooks 51 project from upper side walls in the respective slit holes 48. A vertical groove 54 is formed at the upper part of the outer surface at the center of the end wall 53, and a push button 56 having a hook 55 is provided at the lower part of the outer surface. Further, a hook piece 59 having a vertical groove 57 is provided on the inner surface in the center in the width direction of both end walls 53, and a spring receiving piece 58 is provided below the hook piece 59.
[0021]
The mounting of the net blade cassette 20 to the holding member 50 is performed by covering the holding member 50 with the float support frame 22 and the outer blade frame 21 of the net blade cassette 20 integrated, so that the connecting wall 28 is slit in the holding member 50.HoleThis is done by positioning within 48. At this time, with the net blade cassette 20 attached to the holding member 50, the hook 51 of the holding member 50 is positioned in the vertically long hole 30 above the connecting wall 28, and the protrusion 16 of the float support frame 22 is slit.Hole48 is in contact with both sides of the side guide piece 61. The connecting wall 28 is positioned in the slit hole 48, and the connecting wall 28 is prevented from coming off by the hook 51, and the net blade cassette 20 is held by the holding member 50 so as to be movable up and down. Since the float spring piece 52 is in contact with the lower surface of the outer blade frame 21, the net blade force set 20 is spring-biased upward to be guided freely.
[0022]
FIG. 5 shows the configuration of the slit blade cassette 31. Support bodies 32 are respectively disposed at both ends of the slit outer blade 2, and the support body is supported with respect to the slit outer blade 2 in a state in which the engagement portion 34 of the slit outer blade 2 is attached to the heat seal boss 33 provided on the support body 32. 32 are each heat-sealed. Spring supports 35 are provided on the inner surfaces of both supports 32, and outer walls 36 are provided on the outer surfaces, respectively.A vertical rib 28a is provided on the inner side, and the outer wall of the holding member 50 is sandwiched between the vertical rib 28a and the inner wall portion 36a to hold the inner blade in the reciprocating direction.Yes. The outer wall portion 36 and the inner wall portion 36a constitute a double wall 5a disposed on both sides of the outer wall of the holding member 50. Furthermore, a locking portion 38 and a spring stopper 39 projecting downward are provided at the lower end of the support 32. The slit blade cassette 31 is prevented from coming off by engaging the engaging portion 38 of the support body 32 with the hook 59 of the holding member 50, and the spring receiver39Push-up spring arranged between49At this time, the locking portion 38 is provided in the outer wall portion 36 that slides in the longitudinal groove 57 of the holding member 50 and is located outside the holding member 50.Vertical rib28a slides in the longitudinal groove 54 of the holding member 50, so that the slit blade cassette 31 can be slidably guided in the vertical movement direction. As shown in FIG. 2, the float spring 49 has a lower diameter r smaller than the upper diameter R, and the lower spring portion 49 a is inserted into the hole portion 200 of the spring receiving piece 58 of the holding member 50. By engaging, the lower spring portion 49a is fixed, whereby the float spring 49 can be held with a small number of parts and is easy to assemble.
[0023]
As shown in FIG. 5, the slit inner blade 3 is heat sealed and fixed to the upper surface of the slit joint 41 by a heat seal boss 45. The slit joint 41 includes a slit driver 70a (see FIG.7) And the movement of the linear motor 14 is transmitted to the slit inner blade 3. A spring receiving portion 46 is provided at the lower end of the slit joint 41, and the upper end of the push-up spring 47 is engaged with the spring receiving portion 46, and the lower end of the push-up spring 47 is the spring of the support body 32 of the slit outer blade 2. By engaging with the receiver 35, the slit inner blade 3 comes into sliding contact with the inner surface of the slit outer blade 2, and a good sharpness is ensured on the sliding surfaces of both the blades. Further, on both side surfaces of the slit outer blade 2, notches 84 opened downward are provided at positions corresponding to the heat seal projections 100 (FIG. 4) for assembling the net blade cassette 20. By setting the heat seal protrusion 100 in the notch 84 (the state shown in FIG. 3), the blade cassettes 20 and 31 are very close to each other in the thickness direction without the heat seal protrusion 100 being obstructed. As a result, it is easy to shave even in fine parts such as under the nose, and since the cutting edge of the slit blade 1 can be covered with the net blade 11, there is no lumpy feeling and a good shave feeling per skin can be obtained. .
[0024]
The holding member 50 detachably engages the hook 55 provided inside the push button 56 shown in FIG. 6 with the convex portions 66 provided in the grooves 65 at both ends in the longitudinal direction of the outer blade frame 60. The push button 56 can be detachably attached to the outer blade frame 60 in a state where the push button 56 is positioned on both outer surfaces of the outer blade frame 60 fixed to the main body 9. As shown in FIG. 1, the end upper end 60a of the outer cutter frame 60 in the inner cutter reciprocating direction M is shown.positionIn FIG.TheThe outer cutter frame 60 is engaged. This is because the outer blade frame 60 is made of, for example, metal, while the holding member 50 is made of a molded product in order to ensure elasticity of attachment and detachment. The force for holding the cassettes 20 and 31 becomes weak, and in extreme cases, the sharpness becomes worse. Therefore, by engaging the upper end of the wall of the metal outer blade frame 60 and the holding member 50, the rigidity of the wall of the holding member 50 can be increased and sharpness can be secured. Yes.
[0025]
Next, the double wall 5 provided at both ends of the net blade cassette 20 and the slit blade cassette 31 in the longitudinal direction., 5aWill be described. As shown in FIG. 1, the float support frame in the net blade cassette 2022Double walls 5 that open downward are formed at both ends in the longitudinal direction (inner blade reciprocation direction M), and the outer wall portion 26 and the inner wall portion 27 are in a state of straddling the outer wall 50a of the holding member 50. And a gap d is provided between the holding member 50 and the outer wall portion 26 and between the holding member 50 and the inner wall portion 27, respectively. further,The outer wall 50a of the holding member 50The inside of the insideInRib-shaped protrusions 110 extending in the lateral direction are provided. On the other hand, as shown in FIG. 2, in each support body 32 disposed at both ends in the longitudinal direction of the slit blade cassette 31, a double wall 5a having an outer wall portion 36 and an inner wall portion 36a is formed. It is arranged so as to straddle the central portion of the outer wall 50a of the holding member 50, and there is a gap d ′ between the holding member 50 and the outer wall portion 36 and between the holding member 50 and the inner wall portion 36a. Is provided. By these double walls 5 and 5a and the protrusion 110, the spilling of the waste accumulated at both ends of the slit blade cassette 31 in the reciprocating direction M of the inner blade is prevented.
[0026]
Further, in the net blade cassette 20, the outer wall 26 and the inner wall 27 are connected by a connecting wall 28 as shown in FIGS. This connecting wall 28 is connected to the net blade cassette 20.InAs well asOf the longitudinal endsOnly on one side of the connecting wall 28, the protruding portions 29 are provided on the outer wall 26 and the inner wall 27, respectively. A vertically long hole 30 is provided above the connecting wall 28 to engage a hook 51 of a holding member 50 described later. The connecting wall 28 is not provided on the side surface where the blade cassettes 20 and 31 are adjacent to each other. On the other hand, also in the support body 32 of the slit blade cassette 31, the outer wall part 36 and the inner wall part 36a are connected by the connection wall 28a. These connecting walls 28a do not exist on both side surfaces of the slit blade cassette 31, so that the blade cassettes 20 and 31 can be arranged close to each other, and the overall thickness of the main body 9 is reduced.
[0027]
Furthermore, in this embodiment, as shown in FIG.Net blade cassette 20In the short directionOutsideAlso on the surface, the outer cutter frame 21 and the float support frame 22 constitute the double walls 5b, respectively, and are assembled so as to straddle the side wall 50b of the holding member 50. It is designed to prevent spilling on the side.
[0028]
But two netsBlade 11And the slit blade placed between them1As shown in FIGS. 8 and 9, or FIGS. 10 and 11, each can be floated independently.20, 31When the blade is pressed against the skin, it is possible to reliably obtain a state in which each outer blade is in contact with the skin, and when the shave is viewed while looking in the mirror, the outer surface of the blade cassette is placed outside the holding member 50. Each blade cassette because20, 31The float state can be confirmed, and along with this, the holding method and the like can be adjusted so that each outer blade contacts the skin.
[0029]
At this time, it is possible to reduce the spillage of the waste by the double walls 5 and 5a provided at both ends of the inner blade reciprocating direction M, respectively. That is, even if a large amount of wrinkles accumulates at the end of the inner blade reciprocating direction M of the blade cassettes 20 and 31 by driving the inner blades 3 and 13, due to the presence of the double walls 5 and 5a shown in FIGS. Since it can be held inside to prevent it from spilling outside, it can give an uncomfortable feeling that the shavings scatter from the gap between the blade cassettes 20 and 31 and the holding member 50 when shaving and adhere to clothes, etc. There is nothing. In addition, since the double wall 5b (FIG. 3) is also provided on the outer side surfaces of the net blade cassettes 20 on both sides, a double wall structure is formed on the entire circumference of the holding member 50. Therefore, spilling of dust can be further prevented. It becomes like this.
[0030]
Further, since the gaps d and d 'can be ensured between the holding member 50 and the double walls 5 and 5a, the blade cassettes 20 and 31 can be smoothly floated. Therefore, the blade cassettes 20 and 31 can float obliquely with respect to the holding member 50, and the followability to the skin is improved. Therefore, the skin contact can be improved and the occurrence of unshaved portions can be prevented. Furthermore, since the outer wall part 26 of the double wall 5 and the outer wall part 36 of the double wall 5a are respectively arranged on the outer surface side of the holding member 50, the movement of the blade cassettes 20 and 31 can be seen well from the outside and is appropriate for the skin. Even when the user is shaving while looking at the mirror, the float state of the blade cassettes 20 and 31 can be easily determined from the outside. Accordingly, it is easy to efficiently apply the outer blade to the skin.
[0031]
In the present embodiment, since the end walls of the holding member 50 hold the three blade cassettes 20, 31, 20 inside the double walls 5, 5a, respectively, Even in the case of a reciprocating multi-head, since the thickness of the entire blade can be reduced, even when shaving fine parts such as under the nose, it is easy to apply to the skin, improving usability, and It is easy to carry by reducing the thickness. The holding member 50 can be attached to and detached from the outer blade frame 60, and the upper end 60a of the side wall of the outer blade frame 60 at the end of the inner blade reciprocating movement.positionSince the side wall of the holding member 50 is engaged, the holding member 50 can be easily attached to and detached from the outer blade frame 60, and the holding member 50 that holds the blade cassettes 20 and 31 in the inner blade reciprocating direction M is provided. Since the rigidity of the wall can be greatly improved, the sharpness can be secured without shaving the outer blade during shaving. In addition, since the two driver elements 70 protruding from the linear motor 14 are driven in opposite directions, the vibration of the main body 9 during driving can be reduced, and all the blade cassettes as shown in FIGS. 20 and 31 are held by the wall on the same side of the holding member 50 (the end wall side at one end in the inner blade reciprocating direction M), so that the force applied to the holding member 50 can be offset. There is also an advantage that noise due to blade vibration can be more effectively prevented by reducing wall deflection.
[0032]
As another embodiment, as shown in FIG. 12, a skin stretching member 24 a made of an elastomer may be provided on the upper surface of the end portion of the outer blade frame 21 in the reciprocating direction M of the inner blade. Other configurations are the same as those of the above embodiment. In this example, a skin-stretching member 24a made of an elastomer is integrally formed on the upper surface of the float support frame 22. The skin-stretching member 24a improves the skin contact, and the jerky feeling at the end of the net blade cassette 20 is obtained. As a result, it is possible to soften the skin and to have a good skin contact, and even when it is shaved sideways with respect to the skin during shaving, a skin stretching effect can be obtained and shaving can be shortened.
[0033]
【The invention's effect】
  As described above, the invention according to claim 1 of the present invention is such that the blade cassette comprising the outer blade corresponding to the inner blade and the outer blade frame to which the outer blade is mounted is orthogonal to the inner blade reciprocating direction. A reciprocating electric shaver that is arranged in a plurality of rows in the direction and each blade cassette is supported by a holding member so as to float freely,Any one of the blade cassettes is configured by a net blade cassette that is held to be movable up and down with respect to the holding member and is attached to an outer blade frame that is fixed to the main body via the holding member. The outer blade frame to which the outer blade is attached, and the float support frame for locking the outer blade frame, and the outer walls of the holding member at both ends of the float support frame and the outer blade frame in the reciprocating direction of the inner blade, respectively. A double wall consisting of an outer wall portion and an inner wall portion arranged in a straddling state is provided.From both ends of the inner blade reciprocating movement direction where the shavings accumulate due to the driving of the inner blade when shaving due to the double wall, the shavings can be held inside to prevent it from spilling outside, so that it adheres to clothes etc Without discomfort like this,NetSince a gap can be secured between both ends of the blade cassette in the reciprocating direction of the inner blade and the holding member,NetThe blade cassette can be floated smoothly. furtherNetThe movement of the blade cassette can be seen from the outside and can be brought into contact with the skin in an appropriate state.
[0034]
In addition to the effect of the first aspect, the double wall of the both ends is provided with a connecting wall connecting the inner wall portion and the outer wall portion, and the connecting wall is formed by the blade cassettes. Since it is not provided on the adjacent side surface, the double wall can be reinforced by the connecting wall, and the connecting wall does not exist on the adjacent surface of the blade cassettes. Since it can be made small in the thickness direction, it is easy to shave even in fine parts such as under the nose, and the thickness of the main body can be reduced, which makes it convenient to carry.
[0035]
The invention according to claim 3Claim 1In addition to the effects described above, double walls are provided on both ends and the outer surface of the blade cassette located on the outer side in the reciprocating direction of the inner blade. Therefore, the blade cassette has a double wall structure on the entire circumference of the holding member. Therefore, it is possible to further prevent spillingThe
[0036]
And claims4In addition to the effect of claim 1, the invention described,eachSince the inner blades of the blade cassette are driven in opposite directions and hold all the blade cassettes on one side wall of the holding member, the inner blades of each blade cassette are driven in the opposite directions, and the holding member Since all the heads are locked by the side wall on one side, the external force applied to the holding member by the inner blade drive always acts in the opposite direction, and the force applied to the holding member can be offset. This minimizes the shakiness of the outer blade, reduces noise, and improves sharpness.
[0037]
And claims5In addition to the effect of the first aspect, the described invention is a blade cassette having a three-head structure in which a slit blade is disposed between two net blades, and the net blade is configured on the side surface of the slit outer blade adjacent to the net blade. Since the cutouts corresponding to the heat seal protrusions for fixing the outer blade and the outer blade frame to be fixed are provided, the blade cassettes can be brought very close to each other in the thickness direction without hindering the heat seal protrusions. Therefore, it is easy to shave even in a fine part such as under the nose, and since the cutting edge of the slit blade can be covered with a net blade, the feeling of shaving is eliminated and a good shave feeling per skin can be obtained.
[0038]
And claims6In addition to the effect of the first aspect, the described invention separates the net blade cassette into an inner member that locks the outer blade and an outer member that locks the inner member, and the outer member is below the inner member. It is easy to assemble from the side, and the engagement means that engages the outer member and the inner member with each other in the fitted state is provided, making it easier to assemble the net blade cassette and applying the inner blade push-up force and the outer wall peeling force. Even when it is not damaged or disassembled, sufficient strength can be ensured. Therefore, it is possible to hold the net blade without breaking during use while improving assemblability.
[0039]
And claims7The described invention is claimed.6In addition to the effects described above, the skin-stretching member is disposed between the inner member and the outer member, and the protruding portion projecting inward from the wall surface of the outer member is engaged with the hole provided in the skin-stretching member. Therefore, even if the skin stretching member is made of an elastic body having a small size in the height direction by simply engaging the skin stretching member with the protrusion of the outer member, the outer member and the inner member are not changed in shape. Can be easily and reliably held in a small space between the two.
[0040]
And claims8In addition to the effect of the first aspect, the invention described is the inside of the end wall of the holding member in the reciprocating direction of the inner blade.InProviding laterally extending protrusionsBecauseIt is possible to prevent spilling from the gap at the end of the inner blade in the reciprocating direction.
[0041]
And claims9In addition to the effect of the first aspect, the invention described is provided with a skin stretcher member made of an elastomer on the upper surface of the outer blade frame in the reciprocating direction of the inner blade. In addition to relieving the ruggedness at the edges, the skin feels good, and even when it is shaved sideways with respect to the skin during shaving, the skin can be stretched and shaved short.
[Brief description of the drawings]
FIG. 1 is a front sectional view in the vicinity of a net blade cassette showing an example of an embodiment of the present invention.
FIG. 2 is a front sectional view of the vicinity of the slit blade cassette.
FIG. 3 is a side sectional view of the above blade head.
FIG. 4 is an exploded perspective view of the above blade head.
FIG. 5 is an exploded perspective view of the above slit blade cassette.
FIG. 6 is an exploded explanatory view for explaining the slit blade cassette, the holding member, and the outer blade frame.
FIG. 7 is an exploded perspective view for explaining an attachment state of the inner blade to the main body same as above.
FIG. 8 is a perspective view of the same.
FIG. 9 is a perspective view during the float operation of the above.
FIG. 10 is a side view of the above.
FIGS. 11A, 11B, and 11C are side views of the blade cassettes during a float operation.
FIG. 12 is a perspective view of another embodiment.
[Explanation of symbols]
1 Slit blade
5,5a double wall
9 Body
11 Net blade
20 Net blade cassette
21 Outer blade frame
24, 24a Skin stretcher
25 Protrusion
28 Connecting wall
31 Slit blade cassette
48 Notches
50 Holding member
60 outer blade frame
81 hole
100 heat seal protrusion
110 Protrusion
M Reciprocating direction of inner blade

Claims (9)

Plural rows of blade cassettes consisting of an outer blade corresponding to the inner blade and an outer blade frame on which the outer blade is mounted are arranged in a direction perpendicular to the reciprocating direction of the inner blade, and each blade cassette is floatably supported by a holding member. A reciprocating electric razor, wherein any one of the blade cassettes is held on a holding member so as to be movable up and down and attached to an outer blade frame fixed to the main body via the holding member. The net blade cassette includes an outer blade frame to which the outer blade is attached, and a float support frame that locks the outer blade frame, and the inner blade reciprocating direction of the float support frame and the outer blade frame. A reciprocating electric shaver characterized in that a double wall composed of an outer wall portion and an inner wall portion disposed so as to straddle the outer wall of the holding member is provided at both ends of each .   The double wall at both ends includes a connecting wall that connects the inner wall portion and the outer wall portion, respectively, and this connecting wall is not provided on the side surface where the blade cassettes are adjacent to each other. Reciprocating electric razor.   2. A reciprocating electric shaver according to claim 1, wherein double walls are respectively provided at both ends and an outer surface of the blade cassette located on the outer side in the reciprocating direction of the inner blade.   2. A reciprocating electric shaver according to claim 1, wherein the inner blades of the respective blade cassettes are driven in opposite directions to hold all the blade cassettes on one side wall of the holding member.   In a blade cassette having a three-head structure in which a slit blade is disposed between two net blades, heat sealing for fixing the outer blade and the outer blade frame constituting the net blade on the side surface of the slit outer blade adjacent to the net blade. The reciprocating electric shaver according to claim 1, further comprising a notch corresponding to the protrusion.   The net blade cassette is separated into an inner member that locks the outer blade and an outer member that locks the inner member, and the outer member can be fitted from the lower side of the inner member, and the outer member and the inner member are fitted in the fitted state. 2. A reciprocating electric shaver according to claim 1, further comprising engagement means for engaging the members with each other.   The skin stretching member is disposed between the inner member and the outer member, and a protruding portion protruding inward from the wall surface of the outer member is engaged with a hole provided in the skin stretching member. Item 6. A reciprocating electric shaver according to item 6.   2. A reciprocating electric shaver according to claim 1, wherein a projecting portion extending in the lateral direction is provided inside an end wall of the holding member in the reciprocating direction of the inner blade.   2. A reciprocating electric shaver according to claim 1, wherein a skin-stretching member made of an elastomer is provided on an upper surface of an end portion of the outer blade frame in the reciprocating direction of the inner blade.

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