JPH07102260B2 - Safety razor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety razor, and more particularly to a safety razor in which a blade is sandwiched between a blade base and a top plate.

[0002]

2. Description of the Related Art Conventionally, as a safety razor of this type,
Between the blade base and the top plate, a two-blade safety razor in which the lower blade body and the upper blade body are sandwiched via a spacer, and further, between the blade base and the top plate, the blade body is A single-bladed safety razor and the like are widely known.

That is, in these conventional safety razors, a plurality of caulking projections are extended downward on the lower surface of the top plate, and caulking is carried out at portions corresponding to the caulking projections of the blade base and the blade body. The caulking holes are formed so as to be substantially the same as the outer shape and the outer periphery of the caulking projections.

Then, the above-mentioned respective members are overlapped and the tip portion of the caulking projection is heat-sealed so that the blade body does not move in the front, rear, left or right direction between the blade base and the top plate. Was stuck to. Therefore, the blade tip of the safety razor was fixed to the shaving tangent line in the assembled state.

[0005]

However, in the above-mentioned conventional safety razor, when the user accidentally shifts the safety razor in the left-right direction while shaving his beard, the skin may be cut and the skin may be damaged. was there.

The present invention has been made in view of the above-mentioned circumstances, and a purpose thereof is to provide a safer safety razor that does not damage the skin even when the safety razor shifts in the left-right direction. To provide.

[0007]

In order to achieve the above object, in the first invention of the present application, a safety razor in which a blade and an inclusion are sandwiched between a blade base and a top plate,
A slide detecting means having a sensor portion protruding from the blade base or the top plate is movably supported with respect to the blade base or the top plate, and the blade body is mounted on the slide detection means when the sensor unit moves in the left-right direction. The main point is to provide a retreating means for retreating relative to the blade stand, top plate or inclusions.

Further, in the second invention of the present application, in the safety razor in which the blade is sandwiched between the blade base and the top plate, the sensor portion protruding from the blade base or the top plate with respect to the blade base or the top plate. Movably supporting the slide detection means provided with,
The gist of the slide means is that the slide means is provided with a retreating means for retreating the blade body relative to the blade base or the top plate when the sensor unit moves in the left-right direction.

[0009]

According to the structure of the first invention, when the safety razor is used, the sensor portion of the slide detecting means is always in contact with the skin surface because it protrudes from the blade stand or the top plate. If the user mistakenly slides the safety razor in the left-right direction, the sensor unit moves. Therefore, with the movement of the slide detecting means, the blade body is relatively retracted by the retracting means with respect to the blade base, the top plate or the inclusions, and the blade body is separated from the skin surface. There is no danger of damaging.

Further, according to the structure of the second invention, when the safety razor is used, since the sensor portion of the slide detecting means is projected from the blade stand or the top plate, it is always in contact with the skin surface, and the user mistakenly operates the safety razor. If is slid in the left-right direction, the sensor unit moves. Therefore, with the movement of the slide detection means, the blade body is relatively retracted by the retracting means with respect to the blade base or the top plate, and the blade body is separated from the skin surface, so that the user's malfunction may damage the skin. There is no.

[0011]

[First Embodiment] A first embodiment of the safety razor according to the present invention will be described in detail below with reference to FIGS. 1 to 8.

A safety razor 1 which is detachably attached to a holder (not shown), as shown in FIGS.
Blade base 2, upper blade 3, lower blade 4, upper and lower blades 3, 4
A spacer 5 as an intervening object interposed between the two, a trace sensor 6 as a slide detecting means, and a top plate 7 are provided.

As shown in FIGS. 1 and 2, four columns 34, which are spaced apart from each other, are provided on the lower surface of the top plate 7 so as to project downward.
A caulking protrusion 35 extends from the tip of the column 34, and the caulking protrusion 35 is slightly tapered. As shown in FIG. 6, the four support columns 34 are inserted into the caulking holes 16 that are provided through the blade base 2 at predetermined intervals, and at the same time, a step portion 16 a formed in the middle of the caulking holes 16 is provided. It is locked in. The caulking projection 35 is provided on the blade base 2
The top plate 7 is caulked so as not to be detachable from the blade base 2 by protruding slightly from the lower surface of the blade base 2.

As shown in FIGS. 1, 2, and 6, the upper and lower blades 3 and 4 are provided with elongated holes 22 and 23 extending in the front-rear direction, and the upper and lower blades 3 and 4 are provided with the elongated holes 22 and 23. Is supported by the column 34 so as to be movable back and forth. The widths of the elongated holes 22 and 23 in the left-right direction are formed to be substantially equal to the cross-sectional width of the column 34, and the upper and lower blade bodies 3 and 4 are restricted from moving in the left-right direction. As shown in the figure,
The spacer 5 is provided with a circular hole 28 having a diameter substantially the same as the circular cross section of the pillar 34, and is inserted and supported by the pillar 34 so as not to move.

As shown in FIGS. 1, 2 and 5, spring accommodating grooves 14 and 32 opening rearward are formed in the rear portions of the left and right sides of the blade base 2 and the top plate 7 which face each other. Two support protrusions 15 and 33 are provided in the spring receiving grooves 14 and 32, respectively.
The support protrusions 1 are provided so as to protrude from each other and face each other.
The elastic leaf springs 13 are supported by 5 and 33 so as not to fall off. The groove portions 2 are respectively provided at the portions of the upper and lower blade bodies 3 and 4 corresponding to the spring storage grooves 14 and 32.
6 and 27 are recessed, and the pressing portions 13a of the leaf spring 13 are in contact with the front portions of the groove portions 26 and 27. The upper and lower blades 3 and 4 are constantly urged forward by the leaf spring 13. In the spacer 5, the spring storage groove 1
Corresponding to 4 and 32, groove portions 30 opening rearward are respectively provided as recesses. The groove portion 30 is formed deeper than the groove portions 26 and 27 of the upper and lower blade bodies 3 and 4 so as not to come into contact with the leaf spring 13.

As shown in FIGS. 1, 2 and 7, at the center of the safety razor 1 in the left-right direction, a recess 11 is formed on the upper surface of the blade base 2.
Are formed. The bearing hole 12 provided in the recess 11 and the bearing hole 31 provided in the lower surface of the top plate 7 corresponding to the bearing hole 12 can be rotated in the left-right direction about the support shaft 19 of the trace sensor 6. Supported by.

Here, the trace sensor 6 is shown in FIG.
Describing with reference to (a) and (b), the trace sensor 6 has blade body locking portions 18 as retreating means projecting upward on the left and right sides of the base portion 17, and at the center of the base portion 17. The support shaft 19 extends in the vertical direction. The trace sensor 6 has an arm portion 20 which extends forward from a base portion 17 thereof.
And a fan-shaped sensor portion 21 is formed at the tip of the arm portion 20. In the present embodiment, as shown in FIG. 3A, the distance L1 from the center of the support shaft 19 to the right end (left end) of the base 17 and the center of the support shaft 19 to the tip of the sensor unit 21. The distance ratio to the distance L2 is L1:
L2 = 1: 2.7.

A guard receiving member 9 is provided at the front end of the blade base 2.
Is provided, and a central portion of the guard receiving member 9 is formed in an arcuate notch so that the sensor portion 21 at the tip of the trace sensor 6 can be rotated. And
As shown in FIG. 7, the front portion of the sensor portion 21 slightly projects from the blade base 2. Square-shaped insertion holes 24 and 25 are respectively provided in the central portions of the upper and lower blades 3 and 4, and the blade locking portion 18 of the trace sensor 6 is provided at the rear ends of the insertion holes 24 and 25. Abutted. At the center of the spacer 5, a groove portion 2 that opens rearward corresponding to the recess 11 is formed.
9 is recessed.

Next, the operation of the safety razor of the first embodiment constructed as described above will be explained. Now, in the normal use state and the non-use state of the safety razor 1,
As shown in FIGS. 4A and 8A, the arm portion 20 of the trace sensor 6 is located in the front-back direction of the blade bodies 3, 4. At this time, the leaf spring 13 constantly urges the upper and lower blade bodies 3, 4 forward by the pressing portion 13a thereof, so that the upper and lower blade bodies 3, 4 are prevented from retreating by a normal shaving operation. . Further, the sensor portion 21 of the trace sensor 6 is always in contact with the skin surface of the user, but since the trace sensor 6 is restricted from rotating in the vertical direction by the bearing holes 12 and 31, it is a normal condition. The trace sensor 6 does not rotate due to the shaving operation, that is, the movement of the safety razor 1 in the vertical direction.

On the other hand, when the user mistakenly slides the safety razor 1 in the direction of arrow A in FIG. 8A during the shaving operation, the trace sensor in contact with the skin surface is detected. The sensor part 21 of 6 holds the position by catching on the skin, and the safety razor 1 slides in the left-right direction according to the operation by the user. Therefore, the trace sensor 6 has the safety razor 1 centered around the support shaft 19. It rotates in the direction opposite to the sliding direction.

As shown in FIGS. 4 (b) and 8 (b), as the trace sensor 6 rotates, the blade engaging portion 18 provided on the base portion 17 of the trace sensor 6 also rotates integrally. By the action of the lever, the insertion holes 24 of the upper and lower blades 3, 4
25 Since the rear side is pressed rearward against the elasticity of the leaf spring 13, the upper and lower blade bodies 3, 4 are moved rearward, and the upper and lower blade bodies 3, 4 retreat relative to the spacer 5. become. Therefore, by sliding the safety razor 1 in the left-right direction, the upper and lower blade bodies 3 and 4 move to positions separated from the skin surface, and there is no risk of damaging the skin. In addition, in the first embodiment, the swing dimension of the blade locking portion 18,
That is, the maximum receding dimension L3 of the upper and lower blades 3, 4 is 0.
It is 7 mm.

With the upper and lower blades 3, 4 retracted, if the safety razor 1 is slightly separated from the skin surface, the leaf spring 13 urges the upper and lower blades 3, 4 to move forward. At the same time, the trace sensor 6 is also rotated in the direction opposite to the direction in which the safety razor 1 was slid in the direction of arrow A, and is automatically returned to the inactive state shown in FIGS. 4 (a) and 8 (a). .

In the safety razor 1 of the first embodiment, the leaf springs 13 are used to move the upper and lower blades 3, 4 as described above.
Since the blade is urged forward, even when a sudden force acts on the blade edges of the upper and lower blade bodies 3, 4 during shaving, the upper and lower blade bodies 3, 4 retreat. At this time, unlike the case where the safety razor 1 is slid in the left-right direction, the trace sensor 6 does not rotate at this time. Further, when the force in the direction of the cutting edge disappears, the leaf spring 1
The upper and lower blade bodies 3 and 4 are automatically returned by the urging force of 3.

Therefore, according to the first embodiment, even if the user mistakenly slides the safety razor 1 in the left-right direction or the force is suddenly applied to the blade tip side, the upper and lower blade bodies are moved relative to the spacer 5. Since 3 and 4 retreat and are separated from the skin surface, there is no risk of cutting the user's skin.

As shown in FIG. 4 (a), the interval L4 between the arc-shaped cutout portions of the guard receiving member 9 is increased and the upper area of the sensor portion 21 of the trace sensor 6 is increased. If formed, the contact area between the sensor portion 21 and the skin surface increases, and the responsiveness to sliding of the safety razor 1 in the left-right direction is further improved. [Second Embodiment] Next, a second embodiment of the safety razor of the first invention will be described with reference to FIGS. 9 to 11.
In the second embodiment, parts different from those in the first embodiment will be described in detail, and the same or corresponding components will be denoted by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 9, a holder (not shown)
The safety razor 41 detachably attached to the blade is a blade base 42, an upper blade body 43, a lower blade body 44, and a spacer as an intervening substance interposed between the upper blade body 43 and the lower blade body 44. A whiskers removal plate 45 that also serves as a whiskers, a trace sensor 46 as a slide detection unit, and a top plate 47 are provided.

As shown in FIGS. 9 and 10, two doglegged spring portions 48 are formed integrally with the top plate 47 on the left and right sides of the top plate 47 by two synthetic resin members on the left and right sides. There is. Further, on the left and right rear portions of the lower blade body 44, a shallowly carved locking groove portion 54 that opens rearward is provided on the outer side, and a deep carved groove that opens rearward is provided on the inner side of the locking groove portion 54. The groove 53 is recessed. Further, deep carved groove portions 51 that open rearward are provided on the outer sides of the rear portions on the left and right sides of the upper blade body 43, and a shallow carved locking groove portion 52 that opens rearward is provided on the inner side of the groove portions 51. Is recessed.

Then, as shown in FIG. 10, the outer first spring piece 49 of the spring portion 48 abuts on the bottom portion of the locking groove portion 54 of the lower blade body 44, and the inner portion of the spring portion 48 inside. The second spring piece 50 is in contact with the bottom portion of the locking groove portion 52 of the upper blade body 43.

Explaining the whiskers elimination plate 45, an elastic whiskers elimination portion 55 extending in the left-right direction is provided in the front portion of the whiskers elimination plate 45, and both left and right ends of the whiskers elimination portion 55 are provided. Both left and right support portions 56 extend rearward. A frame portion 57 is provided on the rear side of the central portion of the whiskers removing portion 55, and thereafter the frame portion has a wide pressing portion 58.
Has become. Left and right supporting portions 56 of the whiskers removing plate 45
A circular hole 59 is transparently provided in the column 59. The support 34 of the top plate 47 is inserted into the hole 59, and both the left and right support parts 56 are rotatable with respect to the support 34, but in a direction perpendicular to the support 34. It is supported immovably. A triangular groove 60 simulating an arrow is formed on the pressing portion 58, and the triangular groove 60 indicates the pressing direction of the whiskers removing operation by the whiskers removing plate 45.

As shown in FIG. 9, unlike the first embodiment, an uneven portion 61 for increasing the frictional force with the skin surface is formed at the upper end of the sensor portion 21 of the trace sensor 46.

Next, the operation of the safety razor of the second embodiment constructed as described above will be explained. Now, FIG. 11
As shown in (a), the arm portion 20 of the trace sensor 46 is arranged in the front-rear direction in the normal use state and the non-use state. At this time, the first and second spring pieces 49, 5
Since 0 is provided so as to hold the positions of the upper and lower blade bodies 43 and 44 by its elasticity, the blade bodies 43 and 44 are prevented from retracting due to a normal shaving operation.

On the other hand, when the user accidentally slides the safety razor 41 in the left-right direction during the shaving operation, the sensor portion 21 of the trace sensor 46, which is always in contact with the skin, touches the skin. Since the safety razor 41 slides in the left-right direction in accordance with the operation of the user, the trace sensor 4 holds the position of the trace sensor 4.
6 rotates about the support shaft 19 in a direction opposite to the sliding direction of the safety razor 41.

With the rotation of the trace sensor 46, as shown in FIG.
The blade body locking portion 18 provided on the base portion 17 of the
By the lever action, the upper and lower blades 43, 44 are pushed rearward against the elasticity of the spring portions 49, 50. At this time, the upper and lower blades 43, 44 with respect to the whiskers removing plate 45
Since the upper and lower blades 43 and 44 are separated from the skin surface by the relative retreat, there is no possibility of damaging the skin due to the sliding of the safety razor 41 in the left and right direction.

In this state, if the safety razor 41 is separated from the skin surface, the elasticity of the spring pieces 49, 50 urges the upper and lower blade bodies 43, 44 forward, and
The trace sensor 46 is also rotated in the direction opposite to that when the safety razor 41 is slid in the left-right direction, and
It automatically returns to the inactive state shown in (a).

Further, in the safety razor 41 of the second embodiment, as described above, the spring portion 48 causes the upper and lower blade bodies 43,
Since it is configured to bias 44 forward, even when a sudden force acts on the blade edges of the upper and lower blade bodies 43, 44 during shaving, as in the first embodiment, the upper and lower blade bodies 4 are
In this case as well, the skin is not damaged because the parts 3 and 44 recede. At this time, the trace sensor 46 does not rotate, and the upper and lower blade bodies 4 are urged by the urging forces of the spring portions 49 and 50.
3,44 are automatically restored.

In the second embodiment, the frictional resistance with the skin surface is increased by making the portion of the sensor portion 21 of the trace sensor 46, which is always in contact with the skin surface, the uneven portion 61.
As compared with the trace sensor 6 of the first embodiment, the responsiveness of the safety razor 41 to sliding in the left-right direction is improved.

Further, in the second embodiment, the upper and lower blades 4
Since the whiskers removing plate 45 is interposed between the 3, 44, the triangular groove 60 is resisted against the elasticity of the whiskers removing portion 55.
When the pressing portion 58 is pressed in the direction of the arrow, the whiskers removing portion 55 bends forward in a bow shape and the upper and lower blade bodies 43, 4
The whiskers clogged between the four can be easily eliminated. Then, when this pressing is released, the whiskers removing portion 55 returns to its original shape by its elasticity.

Furthermore, in the second embodiment, the first
Since the spring portion 48 is integrally formed on the top plate 47 instead of the leaf spring 13 of the embodiment, there is no fear of losing the spring and the work of assembling the safety razor 41 becomes very easy. [Third Embodiment] Next, an embodiment in which the safety razor of the second invention is embodied will be described as a third embodiment with reference to FIGS. In the third embodiment, the configuration different from the second embodiment will be described, and the same or corresponding components will be denoted by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 13, the safety razor according to the third embodiment is a single-blade safety razor, and has a blade body 81.
Are supported so as to be movable back and forth directly between the top plate 47 and the blade base 42 by omitting the spacer. A substantially V-shaped spring piece 49 is integrally formed on each of the left and right rear portions of the top plate 47. Further, locking grooves 54 that open rearward from the outside are provided in the rear portions on both the left and right sides of the blade body 81, and the spring pieces 49 are in contact with the locking groove portions 54.

As shown in FIG. 14, a trace sensor 46 is arranged at the center of the safety razor in the left-right direction, and the shaft 42 of the trace sensor 46 is supported by the bearing holes 12 and 31 provided in the blade base 42 and the top plate 47. It is supported rotatably in the left-right direction about 19. Further, the front part of the sensor unit 21 has a blade base 42.
The blade engaging portion 18 of the trace sensor 46 is in contact with the rear end of the insertion hole 25 of the blade 81. Although not shown, the other configurations of the safety razor of this embodiment are the same as or similar to those of the above-described embodiments.

Therefore, also in the third embodiment, even if the user mistakenly slides the safety razor in the left-right direction or a sudden force is applied to the blade edge side,
On the other hand, since the blade 81 retracts and is separated from the skin surface,
There is no risk of cutting the user's skin. Although the spring piece 49 is integrally formed with the top plate 47 in the present embodiment, the leaf spring 13 of the first embodiment can be used.

The present invention is not limited to the above-mentioned first to third embodiments, and is carried out as follows with a part of the configuration appropriately modified within the scope not departing from the spirit of the invention. You can also (1) In addition to the configuration of the trace sensor 6, for example, FIG.
As shown in FIG. 4, a knob 71 is provided on the opposite side of the contact portion of the sensor portion 21 with the skin surface. By doing so, by operating the knob 71 to rotate the trace sensor 6, the spacer 5 moves forward relative to the upper and lower blade bodies 3, 4, so that the spacer 5 has a whiskers removing function. Become.

The knob 71 is not limited to the shape shown in FIG. 14 and can be formed in any shape as long as it can be held by a hand. The knob 71 can also be applied to the trace sensor 46 shown in the second embodiment. (2) In the first to third embodiments, the trace sensor 6,
Although the structure in which the upper and lower blades 3, 4, 43, 44 are retracted by the rotation of 46 is illustrated, for example, as shown in FIG. 15A, whiskers as inclusions are eliminated as the trace sensor 76 rotates. It is also possible that the plate 72 moves forward.

In this case, the whiskers removing plate 72 has an elastic whiskers removing portion 73 extending in the left-right direction at its front portion.
To provide. Then, a plate portion 74 is extended at the center rear portion of the whiskers removal portion 73, and the rectangular insertion hole 7 is formed in the plate portion 74.
5 is transparently installed. On the other hand, in the trace sensor 76, the base 77 is reversed in the front and rear from the base 17 of the first and second embodiments so that the locking projection 78 of the trace sensor 76 contacts the front end of the insertion hole 75. . Further, unlike the first and second embodiments, the upper and lower blades are immovably inserted and supported by columns of a top plate (not shown), and the blade edges 79 thereof project slightly forward of the whiskers removing portion 73. To do.

In this structure, the safety razor 1,41
When, for example, slides in the direction of arrow B, the trace sensor 76 that is in contact with the skin surface rotates in the direction of the opposite arrow B, and as shown in FIG. Is pressed forward against the elasticity of the whiskers removing portion 73, so that the whiskers removing portion 73 bends forward in a bow shape.
On the other hand, the upper and lower blades maintain their original fixed positions regardless of the rotation of the trace sensor 76.

As a result, the blade tip 79 of the blade body moves back relative to the excluding portion 73 without whiskers.
There is no risk of damaging the skin due to the sliding of the safety razors 1, 41 in the left-right direction. Note that if the trace sensor 76 is separated from the skin surface, the whiskers removing portion 73 bent in a bow shape automatically returns due to its own elasticity. (3) The portions of the trace sensors 6, 46 that come into contact with the skin surface of the sensor portion 21 are not limited to the ones of the first and second embodiments and the ones having irregularities, and may be formed in a groove shape or the like. Good. (4) The leaf spring 13 or the spring pieces 49, 50 for urging the blade bodies 3, 4, 43, 44, 81 forward are provided in the center of the safety razor in the left-right direction, and the trace sensors 6, 46 are provided, for example, for the safety razor. It may be provided on both sides. With this configuration, the responsiveness of the safety razor to sliding in the left-right direction is improved. Further, the trace sensors 6 and 46 are not limited to be provided on both sides, and a plurality of trace sensors may be appropriately provided.

In the first aspect of the invention, only the two-blade type safety razor has been described in the first and second embodiments, but of course, the one-blade type safety razor can be embodied. The first invention and the second invention can also be embodied as a disposable type safety razor in which a blade base is integrally attached to a holder. (5) The trace sensors 6 and 46 are exemplified as those supported by the bearing holes 12 and 31 provided in the top plates 7 and 47 and the blade bases 2 and 42, but the support shaft 19 of the trace sensors 6 and 46 is illustrated.
The top plate 7, 47 and the blade stand 2, 4
It may be supported by only one of the two. (6) Although the whiskers removal plate 72 is configured to be movable in the other embodiment (2), an inclusion other than the whiskers removal plate 72 is used as the top plate 7, 47 and the blade stand. 2,42
A structure may be provided in which the inclusions move as the trace sensors 6, 46, 76 rotate.

Of course, it is also possible to construct the top plates 7, 47 or the blade bases 2, 42 to move forward regardless of the presence or absence of the inclusions 5, 45, 72.

[0049]

As described in detail above, according to the first aspect of the invention, when the safety razor is slid in the left-right direction, the blade detecting member acts relative to the top plate, the blade base or the inclusions by the action of the slide detecting means. As a result, since the user erroneously shifts the safety razor in the left-right direction, it is safe without damaging the skin.

According to the second aspect of the invention, when the safety razor is slid in the left-right direction, the blade body retreats relative to the top plate or the blade base by the action of the slide detecting means, so that the user is erroneous. Even if the razor is shifted to the left and right, it does not damage the skin and is safe.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a safety razor showing a first embodiment of the first invention.

FIG. 2 is an exploded perspective view of the safety razor showing the first embodiment.

FIG. 3 shows the first embodiment, (a) is a plan view of the trace sensor, and (b) is a rear view of the trace sensor.

FIG. 4 is a plan view showing the first embodiment, and FIG. 4 (a) is a plan view showing a use state and a rest state of a normal safety razor,
(B) is a plan view showing the trace sensor of the safety razor during rotation.

5 is a sectional view taken along line XX of FIG. 4A showing the first embodiment.

FIG. 6 is a sectional view taken along line YY of FIG. 4A, showing the first embodiment.

FIG. 7 is a sectional view taken along line ZZ of FIG. 4A, showing the first embodiment.

8A and 8B show the first embodiment, FIG. 8A is an explanatory view of an operation of a normal safety razor in a used state and an idle state of use, and FIG. 8B is an explanatory view of an operation when a trace sensor is rotated.

FIG. 9 is an exploded perspective view of a safety razor showing a second embodiment of the first invention.

FIG. 10 is a sectional view showing the same second embodiment and showing the same location as the XX sectional view of the safety razor in the first embodiment.

FIG. 11 shows the second embodiment, (a) is an operation explanatory view of a normal safety razor in a used state and a non-used state, and (b) is an operation explanatory diagram when the trace sensor is rotated.

FIG. 12 is a sectional view of a safety razor showing an embodiment of the second invention.

FIG. 13 is a sectional view of the safety razor of the same embodiment at the center in the left-right direction.

FIG. 14 is a perspective view of a trace sensor showing another embodiment of the present invention.

FIG. 15 shows still another embodiment of the present invention, (a) is an explanatory view of the action of the whiskers removing plate in a normal safety razor use state and a non-use state, and (b) is a trace sensor rotation. FIG.

[Explanation of symbols]

1,41 ... Safety razor, 2,42 ... Blade stand, 3,43 ...
Upper blade body, 4, 44 ... Lower blade body, 5, 45, 72 ... Spacers as inclusions, 6, 46, 76 ... Trace sensor as slide detecting means, 7, 47 ... Top plate, 18 ... As retreating means Blade engaging portion, 21 ... Sensor portion, 78 ... Retaining protruding portion as retreating means, 81 ... Blade body.

Claims (2)

[Claims] 1. A blade body (3, 4, 43, 44) and an inclusion (5, 45, 72) are sandwiched between a blade base (2, 42) and a top plate (7, 47). A safety razor, which is provided with a sensor part (21) protruding from the blade base (2, 42) or the top plate (7, 47) with respect to the blade base (2, 42) or the top plate (7, 47). Slide detection means (6, 46, 7
6) is movably supported, and the slide detection means (6, 4)
6, 76) has blade bodies (3, 4, 43, 44) when the sensor section (21) moves in the left-right direction.
2), Top plate (7, 47) or inclusion (5, 45, 72)
A safety razor characterized by being provided with a retreating means (18, 78) for retreating relative thereto. 2. A safety razor in which a blade body (81) is sandwiched between a blade base (2, 42) and a top plate (7, 47), the blade base (2, 42) or the top plate (7, 47). 47), the slide detection means (6, 46, 7) provided with a sensor part (21) protruding from the blade base (2, 42) or the top plate (7, 47).
6) is movably supported and the sliding means (6, 46,
When the sensor unit (21) moves in the left-right direction, the blade body (81) is attached to the blade base (2, 42) or the top plate (7, 4).
A safety razor provided with a retracting means (18) for retracting relative to (7).