JPH0630147Y2 - Safety razor - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a safety razor, and more particularly to a safety razor including a mechanism for adjusting a shaving angle of a holder with respect to a neck portion.

[Prior Art] Conventionally used safety razors have a constant angle of the blade with respect to the holder neck (hereinafter referred to as shaving angle). However, since the user of the safety razor has a habit of holding the holder, there is a problem that it is difficult to apply the blade edge to the face at an optimum angle using such a safety razor.

Therefore, safety razors having various structures capable of adjusting the shaving angle have been proposed. For example, the actual development 55-2
In Japanese Patent No. 8334, an arm to which a blade can be attached is rotatably supported by a parallel leg piece at its base end between a pair of supporting portions formed on a neck portion of the holder, and a holder is provided between the supporting portions. The sliding body with the operating part exposed on the back side of
It is disclosed that the holder is disposed so as to be movable in the length direction, and that the elongated holes formed in both the parallel leg pieces are engaged with the protrusions at the tips of the sliding bodies.

According to this safety razor, the shaving angle can be adjusted by sliding the operating portion in the length direction of the holder with the fingers of the hand holding the holder.

[Problems to be Solved by the Invention] By the way, when the safety razor is used, the blade tip of the blade body is pressed against the face, so that the arm to which the blade body is attached exerts a force on the back side of the holder. However, in the above-mentioned conventional safety razor, since the projection of the tip of the sliding body is engaged with the long hole of the parallel leg piece to only lock the rotation of the arm, the back side of the holder as described above. The force to hold the shaving angle of the blade at that time is weak against the force to. Therefore, during use of the safety razor, there is a possibility that the arm may rotate around the shaft toward the back side of the holder.

An object of the present invention is to provide a safety razor capable of arbitrarily adjusting the shaving angle of the blade with respect to the neck portion of the holder and reliably maintaining the shaving angle.

[Means for Solving the Problems] Therefore, in order to achieve the above object, the present invention rotatably supports a blade support member on a neck portion of a holder, and the blade support member is rotatably supported by an elastic member. An operating member for urging and abutting against the blade supporting member for receiving the urging force of the elastic member is disposed within the rotation range of the blade supporting member, and the operating member is configured to rotate the blade supporting member. The gist is that the displacement of the blade support member can be adjusted within the moving range.

[Action]

That is, the blade support member urged in the rotation direction by the urging force of the elastic member contacts the operating member, and the urging force of the elastic member is received by the operating member. Therefore, the blade supporting member is held at a constant angular position by the contact between the rotational biasing force of the elastic member and the operating member. Further, when the displacement of the operating member is adjusted within the rotation range of the blade support member,
Since the positioning of the operating member relative to the blade support member changes, the angular position of the blade support member relative to the holder also changes,
The shaving angle is changed.

[First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the neck 2 formed integrally with the upper end of the holder 1 is provided with a housing recess 3 whose upper surface is open. The upper ends of the left and right side plates 4 of the neck portion 2 are formed so as to be higher than the front and rear plates 5 and 6, and through holes 7 are formed at their opposing positions.

A support member 8 is arranged in the accommodation recess 3. The support member 8 is a rectangular parallelepiped support portion 8 extending in the left-right direction.
a and a flat plate-shaped pressure receiving portion 8b integrally formed at the lower end thereof
It consists of and. Mounting holes 9 are formed at both left and right ends of the supporting portion 8a, and shafts 10 penetrating the through holes 7 are inserted into the mounting holes 9. Therefore, the support member 8 is rotatable back and forth around the shaft 10.

As shown in FIGS. 3 and 4, a leaf spring 11 as an elastic member is interposed between the rear plate 6 and the pressure receiving portion 8b in the accommodation recess 3. The leaf spring 11 has a shape that is gently curved rearward, and always biases the pressure receiving portion 8b forward. The leaf spring 11 may be arranged in the opposite direction to the above, that is, so as to be curved forward.

Further, as shown in FIGS. 1 and 2, a square hole 12 is formed in the upper portion of the front plate 5 of the neck portion 2 of the holder 1, and an operating member 13 is attached to the square hole 12. The operating member 13 has a thick disk shape, and the shaft hole 14 vertically penetrated at the eccentric position has a shaft 16 attached to a pair of upper and lower holes 15 of the square hole 12 in the front plate 5. It is inserted.

As shown in FIG. 4, the operation member 13 is exposed from the square hole 12 to the front and rear, and its rear end (upper end in the drawing) is in contact with the pressure receiving portion 8b. By rotating the outer peripheral surface of the operation member 13 projecting forward from the square hole 12 in the left-right direction, the position of the contact portion with the pressure receiving portion 8b can be adjusted forward and backward.

By the way, as shown in FIG. 1, a mounting recess 17 is formed in the upper surface of the support portion 8a of the supporting member 8, and the mounting portion 1 at the lower end of the support base 18 is mounted in the mounting recess 17.
8a is fitted. Further, a spare blade cartridge 20 having a blade body 19 is detachably attached to the support base 18.

Next, the operation and effect of this embodiment configured as described above will be described.

FIG. 3 shows a state in which the blade body 19 is parallel to the opening surface 3 a of the neck portion 2. In this state, the leaf spring 11
Urges the pressure receiving portion 8b of the support member 8 forward,
The biasing force is received from the direction in which the operation members 13 face each other. Then, with the palm facing the back 1a of the holder 1, the holder 1 is held by the thumb A and the index finger (not shown), and the blade 19 is applied to the face to shave the beard.

At this time, a force acting on the back 1a side of the holder 1 acts on the replaceable blade cartridge 20 as indicated by an arrow B in FIG. 3, so that the support member 8 tries to rotate in the same direction. However, since the pressure receiving portion 8b of the supporting member 8 is in contact with the operating member 13, the rotation of the supporting member 8 is received,
The shaving angle of the blade body 19 is maintained.

When the contact angle of the blade 19 with respect to the face is not optimal,
The thumb A is applied to the operation member 13, and this is rotated in the left-right direction. Then, the operation member 13 moves in the front-rear direction about the shaft 16. Therefore, the support member 8 which is in contact with the operation member 13 also rotates in the front-rear direction about the shaft 10, and accordingly, the blade body 19 of the replacement blade cartridge 20 attached to the support member 8 tilts back and forth. To do. Therefore, the shaving angle can be adjusted steplessly by rotating the operation member 13.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 5, the holder 21 comprises a holder main body 22 having a cylindrical shape and a neck portion 23 integrally formed at the upper end thereof, and the neck portion 23 is formed to have a smaller diameter than the holder main body 22. Has been done. The upper half of the neck 23 has a housing recess 2 that is open at the upper end surface and the outer peripheral surface.
6 is formed, and the tubular member 25 is externally fitted to the neck portion 23.

A support member 27 is attached to the accommodation recess 26 in a state where the tubular member 25 is externally fitted to the neck portion 23. The support member 27 is composed of a substantially disc-shaped support portion 29 and a flat plate-shaped fixing portion 28 fixed to the upper end thereof.
A shaft hole 30 is transparently provided on the left and right sides of the shaft 9. A shaft 31 penetrating left and right through the support portions 23a on both sides of the cylindrical member 25 and the accommodation recess 26 of the neck portion 23 is inserted into the shaft hole 30, and the support member 27 is rotatably supported in the front-rear direction. There is.

A protrusion 32 having a substantially rectangular parallelepiped shape is integrally formed at the lower end of the support portion 29 of the support member 27, and a cylindrical support protrusion 33 extending rearward is provided on the rear surface (left side surface in FIGS. 5 and 6). There is. Then, the support protrusion 33 and the tubular member 2
A coil spring 34 as an elastic member is interposed between the inner surface 25a of the bearing 5 and the inner surface 25a of the bearing 5.

A slanted notch 35 is formed on the outer peripheral edge of the lower portion of the support portion 29 so as to be deeper toward the front.

As shown in FIG. 7, the tubular member 25 and the holder 21.
An operation member 36 is attached to the neck portion 23 at a position lower than the insertion portion of the shaft 31. This operation member 3
Reference numeral 6 denotes a thick disc-shaped operation portion 36a and a screw portion 36b protruding from the central portion thereof, and the screw portion 36b is provided in the tubular member 25 and the support portion 23a of the neck portion 23 so as to penetrate in the left-right direction. It is screwed into the screw hole 37. A tip portion of the threaded portion 36b projects into the accommodating recess 26, and a tip surface thereof abuts a notch 35 of the support member 27.

As shown in FIGS. 5 and 6, the fixing portion 28 of the supporting member 27 has a recess 3 formed in the lower surface of the mounting member 38.
8a is externally fitted. A support base 39 is attached to the mounting recess 38b on the front surface of the mounting member 38, and a replacement blade cartridge 41 having a blade body 40 is attached to the support base 39.
Is detachably attached.

Next, the operation and effect of the second embodiment configured as described above will be described.

FIG. 6 shows a state in which the blade body 40 is substantially orthogonal to the upper opening surface of the neck portion 23. In this state, the coil spring 34 urges the protrusion 32 of the support member 27 forward, and the tip of the screw portion 36b of the operation member 36 contacts the front end of the notch 35 of the support member 27. for that reason,
The operating member 36 receives the biasing force of the coil spring 34 from a direction orthogonal to the biasing force, and holds the angle of the blade 40 with respect to the neck portion 23.

Then, with the palm facing the back of the holder 21, the holder 21 is held by the thumb A and the index finger (not shown),
Shave the beard by applying the blade 40 to the face. At this time, a force to the back 21a side of the holder 21 acts on the replaceable blade cartridge 41 as shown by an arrow C in FIG. 6, so that the support member 27 tries to rotate in the same direction. However, since the tip of the screw portion 36b of the operation member 36 is in contact with the front end of the notch 35 of the support member 27, the rotation of the support member 27 is locked and the shaving angle of the blade 19 is maintained.

When the contact angle of the blade 19 with respect to the face is not optimal,
The thumb A is applied to the operation portion 36a of the operation member 36, and is rotated and loosened. In the present embodiment, the operating member 36 is provided on the neck portion 23 of the holder 21 so that the position of the operating member 36 can be adjusted in the direction orthogonal to the rotation direction of the support member 27. Therefore, the thumb A holding the holder 21 is simply extended. Thus, the rotation operation can be performed, and it is not necessary to change the direction of the holder 21.

When the operating member 36 is loosened as described above, it moves in the direction away from the side surface of the support portion 29 of the support member 27. Therefore, the force for pressing and locking the support member 27 against the biasing force of the coil spring 34 weakens, so that the support member 27 rotates about the shaft 31 in the direction of arrow C in FIG.

In the present embodiment, since the oblique cutout 35 that is deeper toward the tip end side in the biasing direction of the coil spring 34 is formed in the portion of the support portion 29 of the support member 27 where the operating member 36 contacts, as described above. When the operating member 36 is loosened, the support member 27 slowly rotates while being in contact with the threaded portion 36b, and the attachment member 38 attached to the support member 27 tilts upward. Therefore, the shaving angle with respect to the holder 21 can be adjusted steplessly by a simple operation.

[Third Embodiment] Next, a third embodiment of the present invention will be described with reference to FIG.

The holder 53 of the safety razor of this embodiment includes a holder main body 54,
The neck 55 is formed integrally with the upper end of the neck 55 and is inclined forward and upward. The neck 55 is provided with a housing recess 56 that is open at the front surface (left side surface in the drawing). The inner end of the accommodating recess 56 communicates with a recess 54a formed in the upper portion of the holder body 54.

A support member 57, to which a replacement blade cartridge 59 having a blade body 58 can be attached, is rotatably supported by a shaft 60 in the central portion of the accommodation recess 56. The rear end of the support member 57 is constantly urged upward by a coil spring 61 as an elastic member housed in the recess 54a.

On the other hand, an operating member 62 is attached to the neck portion 55. The operating member 62 has a screw portion 62a screwed into the upper wall 55a of the neck portion 55 corresponding to the coil spring 61.
And an operation portion 62b integrally formed at the upper end thereof. The inner end of the threaded portion 62a projects into the accommodating recess 56, and the inner end surface thereof abuts the inner bottom surface of the recess 63 provided in the upper surface of the rear end of the support member 57.

Therefore, according to the safety razor of this embodiment, the rotation angle of the support member 57 with respect to the holder 53 can be adjusted steplessly in addition to the effects and advantages similar to those of the above-described embodiments. Since the rotation of the support member 57 at this time is received by the operation member 62, the shaving angle of the blade body 50 can be maintained.

[Advantages of the Invention] Since the present invention is configured as described above, it has the following effects.

The blade support member rotatably supported with respect to the holder neck is held at a constant angle position by the rotation biasing force of the elastic member and the contact with the operation member that receives the biasing force. The position of the operating member that comes into contact with the blade support member in order to receive the biasing force of the elastic member within the rotation range of the blade support member as well as eliminating the risk of the shaving angle changing due to careless rotation Since the angular position of the blade support member with respect to the holder is changed by adjusting the displacement of the blade, the shaving angle at the time of use can be steplessly changed and adjusted.

[Brief description of drawings]

1 to 4 show a first embodiment embodying the present invention, FIG. 1 is a partial exploded perspective view of a safety razor, FIG. 2 is a partial perspective view, FIG. 3 is a partial sectional view, and FIG. Is a partial plan sectional view, FIGS. 5 to 7 show a second embodiment of the present invention, FIG. 5 is a partially exploded perspective view of the safety razor, and FIG. 6 is a side view of the safety razor. FIG. 7 is a partial sectional view showing the state of the safety razor as seen from the front, and FIG. 8 is a sectional view of the safety razor showing the third embodiment of the present invention. 1, 21, 53 ... Holder, 3, 26, 56 ... Housing recess,
8, 27, 57 ... Blade support member 10, 31, 60 ...
Shaft, 11 ... Leaf spring as an elastic member, 13, 36, 6
2 ... Operation member, 19, 40, 58 ... Blade body, 34, 61 ...
Coil spring as an elastic member.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-55-101289 (JP, A) Actual development S55-28334 (JP, U) JP-B 58-8863 (JP, B2) JP-B 52- 21409 (JP, B2) Actual public 49-43509 (JP, Y1) Actual public 53-382 (JP, Y2) Actual public 53-383 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A neck portion (2, 2) of a holder (1, 21, 53).
3, 55) rotatably supports the blade support member (8, 27, 57), and the blade support member (8, 27, 57) is rotated by the elastic member (11, 34, 61) in the rotating direction. The elastic member (11, 34, 61) contacts the blade support member (8, 27, 57) within the rotation range of the blade support member (8, 27, 57) while being biased. Operating members (13, 36, 62) for receiving the force are arranged, and the operating members (13, 3)
The safety razor is characterized in that the displacement of the blade supporting member (8, 27, 57) can be adjusted within the rotation range of the blade supporting member (8, 27, 57).