JP2002102551A - Shaver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and efficiently assemble a shaver by thinly designing a vertical movement mechanism and to permit accurate movement by reducing the deformation of parts which increases vertical stroke. SOLUTION: This shaver includes a trimmer 3 and a handle 6 connected to the trimmer 3 via the vertical movement mechanism 17. The mechanism 17 vertically moves the trimmer 3 while increasing the vertical stroke of the handle 6. The mechanism 17 has a tilting plate 23. The tilting plate 23 has a first connecting shaft 23A which is connected to a case 22 via a plate rotating mechanism 30 and also to the trimmer 3, and a second connecting shaft 23B connected to the handle 6. The mechanism 30, the first connecting shaft 23A and the second connecting shaft 23B are arranged at respective three points which do not constitute a straight line. The distance between the mechanism 30 and the first connecting shaft 23A is greater than the distance between the mechanism 30 and the second connecting shaft 23B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric shaver having a trimmer that moves up and down.

[0002]

2. Description of the Related Art An electric razor having a trimmer can be conveniently used by raising the trimmer when sharpening or cutting a beard. This electric razor has a structure in which a knob is connected to a trimmer, and the trimmer is moved up and down by the knob. However, this electric shaver does not always use the trimmer in an ideal state when the stroke of the trimmer is small. This is because the amount of protrusion of the trimmer is limited. This drawback can be overcome by connecting the knob to the trimmer via a vertical mechanism that increases the knob stroke.

As an example of an up-and-down mechanism for increasing the stroke, the present applicant has filed an application earlier and has disclosed Japanese Patent Application Laid-Open No. 2000-1577.
The mechanism disclosed at 58 is shown in the exploded perspective view of FIG. 1 and the sectional view of FIG. The vertical mechanism 17 of the electric razor shown in these figures has a knob 6 for moving the trimmer 3 up and down, and the knob 6 is connected to the trimmer 3 via the vertical mechanism 17. The up-and-down mechanism 17 has a lever 28 that is rotatably connected to the outer blade case 2. This lever 28
Is connected to the outer cutter case 2 via a pin 28A so as to be tiltable in a vertical plane. Furthermore, this lever 28
Has a connecting shaft 28B for connecting to the trimmer 3 and a through shaft 28C for connecting to the knob 6. The lever 28 is disposed on the inner surface of the outer cutter case 2, and makes the connecting shaft 28 </ b> B connected to the trimmer 3 protrude to the back side, and makes the penetrating shaft 28 </ b> C connected to the knob 6 protrude to the front surface side. The penetration shaft 28 </ b> C is formed by the arch slit 2 of the outer blade case 2.
9 protrudes from the front side and is connected to the back surface of the knob 6.

When the knob 6 is moved up and down, the lever 28 is tilted by a penetrating shaft 28C connected to the knob 6. The tilting lever 28 moves the trimmer 3 up and down on the connecting shaft 28B. Lever 28
In the figure, the right end pin 28A is connected to the outer cutter case 2, the middle is connected to the knob 6 by the through shaft 28C, and the left end is connected to the trimmer 3 by the connection shaft 28B.
The vertical stroke of the knob 6 is increased by the lever ratio, which is the ratio of the length of the connecting shaft / (pin-penetrating shaft), to move the trimmer 3 up and down. The distance between the connecting shaft 28 </ b> B and the pin 28 </ b> A is increased by the distance between the through shaft 28 </ b> C
By making the stroke longer than A, the stroke up and down of the trimmer 3 can be made larger than the stroke of the knob 6.

[0005]

The above-mentioned electric razor can reduce the vertical stroke of the knob and increase the vertical stroke of the trimmer. For this reason, it is possible to increase the amount of protrusion of the trimmer while shortening the distance for moving the knob up and down, and to use the knob conveniently. However, in this vertical mechanism, a lever is provided inside the outer cutter case, and a penetrating shaft of the lever protrudes outside the outer cutter case and is connected to the knob.
Further, as shown in the cross-sectional view of FIG. 2, since the knob, the outer cutter case, the trimmer, and the lever have a laminated structure, the portion where the knob is provided becomes thick, and it is difficult to design the knob thin. Furthermore, the penetrating shaft provided on the lever,
It becomes longer because it penetrates the outer cutter case and protrudes to the surface of the outer cutter case, and it becomes deformed when the knob is moved up and down,
Or, there was a disadvantage that it was easily damaged. When the penetrating shaft is deformed, the tilt angle of the lever with respect to the vertical movement of the knob becomes small, and the trimmer cannot be moved up and down at a normal position. Furthermore, since the lever which is tilted by the knob receives opposite vertical forces on the front side and the back side, it is difficult to accurately tilt the lever in a vertical plane. For example, when raising the trimmer by raising the knob, the tip of the penetrating shaft is pushed upward, the surface of the lever receives an upward force, and the connecting shaft that raises the trimmer is downward by the reaction of pushing the trimmer upward. Pressed. For this reason, the lever receives a downward force near the through shaft on the front surface side and a downward force near the connection shaft on the rear surface side, so that the lever is twisted. The twisting of the lever causes an inconvenience that the vertical movement of the knob cannot be normally transmitted to the vertical movement of the trimmer.

[0006] The present invention has been developed with a view to solving such a drawback. An important object of the present invention is to provide an electric shaver which can easily and efficiently assemble a vertical mechanism for moving a trimmer up and down and can design the vertical mechanism to be thin. Another important object of the present invention is to prevent the parts that increase the vertical stroke of the knob from exerting excessive force, reduce the deformation of these parts, and move the trimmer up and down accurately with the vertical movement of the knob. To provide a shaver that can be used.

[0007]

The electric shaver according to the present invention comprises a trimmer 3 mounted on a case 22 so as to be able to move up and down, and is connected to the trimmer 3 via a vertical mechanism 17 and is vertically moved. Case 2 to be able to move
2 and a knob 6 attached to the knob. Vertical mechanism 17
Increases the vertical movement stroke of the knob 6 to move the trimmer 3 up and down. The up-and-down mechanism 17 has a tilting plate 23. The tilting plate 23 is connected to the case 22 via a plate turning mechanism 30 so as to be tiltable, and is connected directly or indirectly to the trimmer 3. Shaft 23A and second connecting shaft 2 connected to knob 6
3B. Plate rotating mechanism 30 and first connection shaft 2
3A and the second connection shaft 23B are arranged at three points that are not linear. Further, the plate rotation mechanism 30 and the first connection shaft 23
A is determined by the plate rotation mechanism 30 and the second connection shaft 23.
It is made to be larger than the distance to B.

The plate rotating mechanism 30 can be composed of a pin 24 fixed to the case 22 and a shaft hole 23C provided in the tilting plate 23. The plate rotating mechanism 30 is configured such that the pin 24 fixed to the case 22 is
C, and is connected to the case 22 so that the tilt plate 23 can be tilted.

The first connecting shaft 23A and the second connecting shaft 23B
Preferably, they are arranged on the same surface side of the tilt plate 23.
The tilt plate 23 includes a first connection shaft 23A and a second connection shaft 2.
3B can be disposed on the back surface facing the front surface of the case 22. Further, the first connecting shaft 23 of the tilt plate 23
A can be connected to the trimmer 3 via the push rod 16.

The tilting plate 23 is a triangular plate, and a plate rotating mechanism 30 and a first
Arranging the connecting shaft 23A and the second connecting shaft 23B, or
As a bent plate having a rectangular shape in plan view, a plate rotating mechanism 30 is provided at one end of the bent plate, and a first connecting shaft 23A is provided at the other end.
The second connecting shaft 23B can be provided at the bent portion.

The case 2 connecting the tilting plate 23
2 can be either an electric razor body case or an outer blade case 2 equipped with an outer blade.

The knob 6 can be structured to include a moderation part 6A connected to the tilting plate 23 and an operation part 6B connected to the moderation part 6A and connected to the case 22 so as to be able to move up and down. Further, the lower end face of the push rod 16 is disposed at a position facing the upper end face of the moderation part 6A, and the lower end face of the push rod 16 and the upper end face of the moderation part 6A abut on each other at the lowered position of the trimmer 3. Can be done.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below illustrate an electric shaver for embodying the technical idea of the present invention, and the present invention does not specify the electric shaver as follows.

Further, in this specification, in order to make it easier to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as “claims” and “ In the column of “means”.
However, the members described in the claims are not limited to the members of the embodiments.

The electric razor shown in FIG.
And a razor body 1 to which the outer blade case 2 is detachably attached. The outer blade case 2 is connected to the razor body 1 via a detachable hook 7 provided on the razor body 1 as shown in an exploded perspective view of FIG. The attachment / detachment hooks 7 are provided at both ends of the razor body 1 at the tip end thereof. As shown in the cross-sectional view of FIG. 5, the detachable hook 7 includes a hook portion 7A that is hooked on a hooking recess 8 provided on the inner surface of the outer blade case 2, a push button portion 7B that projects outside from the razor body 1. Having. The detachable hook 7 is pushed by a push spring 9 built in the razor main body 1 in a direction in which the push button portion 7B is elastically pushed out from the razor main body 1, and the hook portion 7A is inserted into the hooking concave portion 8 of the outer blade case 2. I'm hooked. When the outer blade case 2 is removed, the push button 7B of the detachable hook 7 is pushed in, and the hook 7A
Is separated from the hooking recess 8. In this state, the outer blade case 2 can be removed from the razor body 1. When the outer blade case 2 is mounted at a fixed position on the razor body 1, the hook portion 7A of the detachable hook 7 is hooked by the hooking concave portion 8, and the outer blade case 2 is connected so as not to come off.

As shown in the exploded perspective view of FIG. 6, the outer cutter case 2 has an arch outer cutter 4, a slit outer cutter 5, and a trimmer 3 mounted in parallel. In the electric razor shown, two arch outer blades 4 and one slit outer blade 5 are mounted on the outer blade case 2. The electric razor of the present invention may have a structure in which a series of arch outer blades is mounted on the outer blade case or a structure in which no slit outer blade is provided.

The arch outer blade 4 and the slit outer blade 5 are mounted on the outer blade case 2 in a posture parallel to the longitudinal direction of the razor body 1. The arch outer blade 4 and the slit outer blade 5 are the outer blade case 2
It is mounted so that it can move up and down slightly. This is because when the arch outer blade 4 and the slit outer blade 5 are pressed against the skin, they enter and exit somewhat elastically and make the skin comfortable and comfortable.

The arch outer blade 4 is formed by fixing a thin mesh blade 4A in an arch shape to a plastic holder 4B. The slit outer blade 5 is formed by bending a metal plate 5A having a plurality of slits formed in a thick metal plate into a groove shape and fixing the bent metal plate to a plastic holder 5B. The mesh blade 4A of the arch outer blade 4 has a thickness of, for example, 30 to 10
It is a thin metal plate having a thickness of 0 μm, optimally about 50 μm.
The mesh blade 4A has opened countless shaving holes. The metal plate 5A of the slit outer blade 5 is a metal plate thicker than the mesh blade 4A.

The holders 4B, 5B are formed by molding a hard plastic such as polypropylene, polyethylene, nylon, or the like into a rectangular prismatic shape with upper and lower openings. The holders 4B and 5B are formed in an outer shape that can be attached to the outer blade case 2 and moved up and down. The arch outer blade 4 and the slit outer blade 5 can be connected so as not to fall out of the outer blade case 2 and to be able to float up and down at a predetermined position.

The trimmer 3 is mounted so that it can enter and exit the outer blade case 2. In the electric razor shown in FIG. 7, a trimmer 3 is provided on the outer blade case 2 in a posture inclined with respect to the razor body 1. The inclination direction of the trimmer 3 is a direction in which the leading edge approaches the adjacent arch outer blade 4. In the outer cutter case 2 in this figure, the arch outer cutter 4 is disposed on the left side of the trimmer 3, so that the upper edge of the trimmer 3 is inclined to the left and the lower end to the right. However, the electric razor of the present invention can be mounted on the outer cutter case in a posture in which the trimmer is not inclined with respect to the razor body.

The trimmer 3 is composed of a fixed trimmer blade 3A obtained by bending a metal plate in an inverted L-shape, a vibrating trimmer blade 3B which reciprocates by sliding on the fixed trimmer blade 3A, and a vibrating trimmer blade 3A. And a slide table 10 that connects the trimmer blade 3B. The upper part of the fixed trimmer blade 3A and the vibrating trimmer blade 3B is shown in the enlarged sectional view of FIG. The fixed trimmer blade 3A in this figure is provided with a ridge 3a by projecting the vicinity of the bent edge of the horizontal portion to the upper surface, and further bending the leading edge of the horizontal portion downward to form a lower bent edge 3b. It has a plurality of parallel slits 3c at the leading edge of the portion. On the other hand, the vibrating trimmer blade 3B is also bent in an inverted L-shape to slide on the lower surface of the fixed trimmer blade 3A, and has a comb-shaped tip. The width of the horizontal portion of the vibrating trimmer blade 3B is smaller than that of the fixed trimmer blade 3A. The horizontal part of the vibrating trimmer blade 3B is fixed to the fixed trimmer blade 3
A is slid in contact with the lower surface of the horizontal portion of A to cut the beard. The slits 3c of the fixed trimmer blade 3A and the comb blades provided on the vibrating trimmer blade 3B are slits gradually increasing in width toward the opening edge at the tip. This is for guiding the beard to the comb blade more smoothly. further,
The fixed trimmer blade 3A also has a slit 3d at a portion where the ridge 3a of the horizontal portion is provided. This slit 3d is
It acts as a comb to make the beard uniform.

The slide base 10 is mounted on the outer blade case 2 so as to be able to move up and down. The slide table 10 fixes the fixed trimmer blade 3A, and connects the vibrating trimmer blade 3B so that it can reciprocate by sliding on the lower surface of the fixed trimmer blade 3A.

The trimmer 3 is attached to the outer blade case 2 so as to be able to enter and exit vertically. The trimmer 3 is stopped at the raised position and the lowered position. As shown in FIG. 3, the trimmer 3 is pushed up to a raised position, and is used for sharp shaving and shaving of a beard. During normal use of the electric shaver, the trimmer 3 is lowered as shown in FIG. 7 and used together with the arch outer blade 4 for shaving.

The trimmer 3 is connected to the outer blade case 2 so as to be able to move up and down, and vibrates the vibrating trimmer blade 3B at both the raised position and the lowered position. In order to vibrate the vibrating trimmer blade 3B together with the inner arch blade 11, the vibrating trimmer blade 3B has a connecting arm 12 extending downward as shown in FIG. The connecting arm 12 has a vertically long slit 12A. The drive arm 14 provided on the rear vibrating rod 13 shown in FIG. 4 guides the slit 12 </ b> A of the connecting arm 12 and is vibrated by the vibrating rod 13. The slit 12A is long enough to guide the drive arm 14 when the trimmer 3 is moved up and down.

In order to connect the trimmer 3 to the outer cutter case 2 so as to be able to move up and down, the slide base 10 is connected to both ends of the trimmer 3 and the inner surface of the outer cutter case 2 by the vertical guide mechanism 1.
5, the trimmer 3 is connected so that it can move up and down.

The trimmer 3 is elastically pressed downward by the retractable elastic member 18 and is stopped at the lowered position.
When it is pushed up to 6, it is stopped at the raised position. Such a structure is described below.

In order to pull the trimmer 3 into the lowered position,
As shown in FIGS. 9 to 11, between the trimmer 3 and the outer cutter case 2, a retractable elastic body 18 that elastically pulls the trimmer 3 to a lowered position is mounted. This retractable elastic body 18
Lowers the trimmer 3 to the lowering position of the outer cutter case 2 when the trimmer 3 is not pushed up by the pushing rod 16. The trimmer 3 having this structure can be pulled into the outer blade case 2 without forcibly pulling the knob, so that the structure for pulling the trimmer can be simplified.

The retractable elastic body 18 is shown in FIG. The retractable elastic body 18 in this figure is a retractable spring disposed between the trimmer 3 and the outer cutter case 2. The retraction spring is manufactured by processing an elastic metal wire, and has an intermediate loop portion 1.
The elastic arm portions 18B project from both ends of 8A. This retraction spring attaches the loop portion 18A to the trimmer 3
And is connected to the slide base 10 through a pin 19 formed integrally with the slide base 10. The elastic arm portion 18B of the retraction spring elastically presses the locking projection 20 provided on the inner surface of the outer blade case 2. The resilient arm 18B of the retracting spring resiliently presses the locking projection 20 of the outer blade case 2, and the elastic arm 18B is moved in the direction indicated by the arrow B in FIG.
The trimmer 3 is lowered by this force. Trimmer 3 elastically pulled into outer blade case 2
When it is pushed out, it protrudes from the outer cutter case 2, and is elastically pulled into the outer cutter case 2 by the retractable elastic body 18 when not pressed.

The slide table 10 is pushed by a push rod 16 provided on the razor body 1 and is pushed out from the outer blade case 2. As shown in FIGS. 9 and 10, the slide base 10 is provided with a connection recess 21 for connecting the push rod 16 at the center of the lower end.
6 are connected. The push rod 16 is mounted on the case 22 so as to be movable only in the vertical direction.

Hereinafter, the up-down mechanism which is a feature of the present invention will be described in detail. The push rod 16 is moved up and down by a vertical mechanism. The up / down mechanism moves the trimmer 3 up and down by increasing the up and down stroke of the knob 6. The vertical mechanism 17 built in the case 22 is shown in FIGS. However, these figures show a state in which the outer blade case 2 and the operating parts 6B of the knob 6 have been removed from the electric shaver shown in FIG. FIG. 12 shows a state in which the up-down mechanism raises the trimmer, and FIG. 13 shows a state in which the trimmer is lowered.

The vertical mechanism 17 includes an extruding rod 16 connected to the trimmer 3, a tilting plate 23 connected thereto,
A moderation part 6A of the knob 6 connected thereto and an operation part 6B of the knob 6 connected thereto are provided.

The tilting plate 23 is manufactured by integrally molding the whole with a hard plastic. Tilting plate 23
Is a plate rotating mechanism 3 that can be tilted to the case 22.
0. The illustrated tilting plate 23 has a shaft hole 23C at the right end, and a pin 2 fixed to the case 22.
4 is rotatably inserted into the shaft hole 23C. The mechanism capable of rotating the tilting plate 23 is the plate rotating mechanism 30. The vertical mechanism 17 in the figure is the case 2
2 and a tilting plate 23
The plate rotation mechanism 30 is constituted by the shaft hole 23C opened to the side. However, a pin can be formed integrally with the tilting plate, and a shaft hole for rotating the pin can be provided in the case to form a plate rotating mechanism.

Further, the tilting plate 23 includes the trimmer 3
And a second connecting shaft 23B connected to the knob 6 directly or indirectly. Plate rotating mechanism 30, first connection shaft 23A, and second connection shaft 23
B are arranged at three points that are not linear, and the distance between the plate rotation mechanism 30 and the first connection shaft 23A is designed to be larger than the distance between the plate rotation mechanism 30 and the second connection shaft 23B. You.

The tilt plate 23 shown in FIGS. 12 and 13
When the trimmer is in the lowered position, as shown in FIG. 13, the line connecting the plate rotating mechanism 30 and the first connection shaft 23A is in a horizontal position, and when the trimmer is in the raised position, as shown in FIG. As shown, the plate rotation mechanism 30
And the second connecting shaft 23B is tilted until the line connecting it and the second connecting shaft 23B becomes a horizontal posture. As shown in FIG. 14, the rotation angle of the tilting plate 23 at this time is (θ), the distance between the plate rotation mechanism 30 and the first connection shaft 23A is (L1), and the plate rotation mechanism 30 and the second connection shaft W1 = L1 × sin θ, W2, where (L2) is the distance to the first connection shaft 23B, (W1) is the vertical rise amount of the first connection shaft 23A, and (W2) is the vertical rise amount of the second connection shaft 23B. = L2 × sin θ, and the stroke ratio (W1 / W2), which is the ratio of the amount of rise of the trimmer to the amount of increase of the knob, becomes equal to (L1 / L2). That is, the plate rotation mechanism 30 and the first connection shaft 23
The ratio of the linear distance (L1) to A and the linear distance (L2) between the plate rotation mechanism 30 and the second connection shaft 23B is the stroke ratio. This stroke ratio is greater than one. For example, if the stroke ratio is 2, the trimmer 3 is moved up and down by a stroke twice as large as the up and down stroke of the knob 6. The stroke ratio is set to an optimum value in a preferable vertical stroke of the knob 6 and the trimmer 3.

The tilt plate 23 in the figure is formed in the shape of a triangular plate. However, the tilt plate 23 is the same as that in FIG.
As shown in FIG. 5, it can also be formed into a bent plate shape in the shape of a letter in plan view. The triangular plate which is the tilting plate 23 has a pin 24, a first connecting shaft 23A, and a second connecting shaft 23B disposed at three corners of the triangle of the triangular plate. The bending plate as the tilting plate 23 has a pin 24 at one end of the bending plate and a first connecting shaft 23A at the other end.
, The second connecting shaft 23B is disposed at the bent portion.

The tilting plate 23 has a first connecting shaft 23A and a second connecting shaft 23B protruding from the same surface. This is for connecting the trimmer 3 and the knob 6 on the same plane. FIG. 16 is a sectional view taken along line AA of the tilt plate portion in FIG. In the tilting plate 23 of this figure, a first connection shaft 23A and a second connection shaft 23B are provided so as to protrude from the back surface facing the case surface. This structure is a tilt plate 2
A connecting portion between the trimmer 3 and the knob 6 is provided between the case 3 and the case 22. In order to provide a gap between the tilting plate 23 and the case surface, a boss 23D having a shaft hole 23C protruding from the tilting plate 23 is provided, and a pin 24 integrally formed with the case 22 in the shaft hole 23C of the boss 23D. Is inserted so that it can be rotated. The tilt plate 23 in the figure is
The back side is a connecting part between the trimmer 3 and the knob 6,
The surface side of the tilting plate may be a connecting portion between the trimmer and the knob.

The tilt plate 23 shown in FIG.
A is indirectly connected to the trimmer 3 via the extrusion rod 16. However, an extruding rod may be provided on the trimmer, and the trimmer may be directly connected to the first connection shaft. The first connecting shaft 23A of the tilt plate 23 moves along a circular orbit,
Move the trimmer 3 up and down. The lower end of the push rod 16 is provided with a slit 16A extending in the lateral direction so that the first connecting shaft 23A converts the movement of the circular orbit into a vertical movement. The first connecting shaft 23A is guided by the slit 16A. are doing. The lateral movement of the first connecting shaft 23A is absorbed by the slit 16A, and the vertical movement moves the push rod 16 up and down.

Similarly, the second connecting shaft 23B is also
Is inserted into the slit 6a extending in the lateral direction, and the lateral movement of the knob 6 is absorbed by the slit 6a. The tilt plate 23 is tilted by the vertical movement of the knob 6. First
Slit 1 for guiding connection shaft 23A and second connection shaft 23B
6A and 6a have widths slightly larger than the outer diameters of the first connection shaft 23A and the second connection shaft 23B, and the first connection shaft 23A and the second connection shaft 23A have the same width.
The connecting shaft 23B can be moved by sliding.

The knob 6 is connected to the case 22 of the razor body 1.
It is mounted so that it can move up and down. Razor body 1
In the case 22, a concave portion 25 is provided in a portion where the knob 6 is mounted, and the knob 6 is mounted here. Knob 6
A moderation part 6A connected to the tilting plate 23 and an operation part 6B connected to the moderation part 6A and connected to the case 22 so as to be able to move up and down are provided. The moderation part 6A is provided with a pair of moderation arms 6b integrally formed in order to stop the knob 6 in a moderation position between the raised position and the lowered position. The pair of moderation arms 6b has, at the lower ends thereof, convex portions 6c that protrude inward. The protrusion 6c moves vertically above the moderation protrusion 26 integrally formed with the case 22 of the razor body 1, and stops the knob 6 between the raised position and the lowered position. The moderation part 6A has a connection hole 6d for connecting the operation part 6B.

The operating part 6B is provided with a protruding connecting pin 6e inserted into the connecting hole 6d of the moderating part 6A. The connecting pin 6e is inserted into the connecting hole 6d and connected to the moderating part 6A. Convex part 6 formed with connecting hole 6d
g is convex and is formed higher than the outer surface of the slit 6a and the outer surface of the moderation arm 6b to form a step. Further, as shown in the cross-sectional view of FIG. 16, the operating part 6B is provided with a plurality of connecting hooks 6f that protrude from the rear surface by integral molding. The connection hook 6f connects the hook portion at the tip to a sliding groove 27 provided on the surface of the case. The operation part 6B is connected to the case 22 via the connection hook 6f so as to be able to move up and down.

In the electric shaver shown in the figure, the lower end surface of the push rod 16 is arranged at a position facing the upper end surface of the moderation part 6A. Further, as shown in FIG. Lower end face of rod 16 and moderation part 6
The upper end surface of A is in contact with each other. The structure is such that the push rod 16
Abuts against the moderation part 6A, so that the pushing rod 16 can be reliably stopped from descending.

As shown in FIG. 12, when the trimmer 3 is in the raised position, a line connecting the shaft hole 23C of the tilting part 23 and the second connecting shaft 23B is formed on the step of the convex part 6g of the moderation part 6A. Since one side along this is abutted, the trimmer 3 can be stably stopped at the raised position. If the convex part of the moderation part is eliminated to form a planar shape as a modification of the present embodiment, the thickness is reduced accordingly, and the overall thickness of the vertical mechanism can also be reduced.

As shown in FIGS. 4 and 6, the razor body 1 is provided with two vibrating rods 1 through a through hole 1A provided at the upper end.
3 is projected right above. The vibrating rod 13 is extended in parallel with the longitudinal direction of the razor body 1, that is, right above, and connects the arch inner blade 11 to the tip to reciprocate the arch inner blade 11. Further, in FIG. 4, the rear vibrating rod 13 is a vibrating trimmer blade 3B built in the trimmer 3.
The drive arm 14 for reciprocating is connected laterally protruding. The drive arm 14 is inserted into a slit 12A provided in the connecting arm 12 of the vibration trimmer blade 3B, and reciprocates both the inner arch blade 11 and the vibration trimmer blade 3B with one vibration rod 13. The front vibrating rod 13 also connects a drive arm 14 that reciprocates a slit inner blade (not shown) built in the slit outer blade 5 by protruding laterally. The drive arm 14 is also inserted into the slit 12A provided in the connection arm 12 of the slit inner blade, and reciprocates both the arch inner blade 11 and the slit inner blade. These two vibrating rods 13 reciprocate in opposite directions.

[0044]

According to the electric shaver of the present invention, the distance between the plate rotating mechanism and the first connecting shaft is equal to the distance between the plate rotating mechanism and the second connecting shaft.
Since it is larger than the distance from the connecting shaft, the trimmer can be moved up and down more than the vertical movement stroke of the knob. Also, there is a feature that the excessive force does not act on the parts that increase the vertical stroke of the knob, the deformation of these parts is reduced, and the trimmer can be moved up and down accurately by the vertical movement of the knob. That is, the vertical mechanism of the electric shaver of the present invention includes a tilting plate, and the tilting plate is connected to the case via a plate turning mechanism so as to be tiltable, and is connected to the plate turning mechanism and the trimmer. This is because the first connection shaft and the second connection shaft connected to the knob are arranged at three points that are not linear. The tilting plate having this structure can effectively prevent the occurrence of torsion as in the lever shown in FIG. 1 even when the first connection shaft and the second connection shaft receive forces in the upside-down direction. Therefore, the vertical movement of the knob can be transmitted to the vertical movement of the trimmer normally, and the trimmer can be moved up and down at a normal position by minimizing the application of an excessive force to the tilting plate. Furthermore, since the plate rotating mechanism, the first connecting shaft and the second connecting shaft are arranged at three points that are not linear, the up-and-down mechanism can be designed to be compact by reducing the lateral width of the tilting plate. Moreover, the vertical movement of the knob can be reliably transmitted to the trimmer.

Further, the electric shaver according to the third aspect of the present invention has a feature that the vertical mechanism for moving the trimmer up and down can be easily and efficiently assembled and the vertical mechanism can be designed to be thin. It is this electric razor
This is because the connection shaft and the second connection shaft are arranged on the same surface side of the tilting plate. As described above, the tilting plate in which the first connection shaft and the second connection shaft are disposed on the same surface side can be very easily connected to the trimmer and the knob, and can be efficiently assembled. Further, since the vertical mechanism can apply forces applied to the tilting plate from the first connection shaft and the second connection shaft in the same plane, it is possible to reliably prevent an excessive force from acting on the tilting plate. Therefore, there is also a feature that the deformation of this part can be minimized.

Further, the electric shaver also has a feature that the entire vertical mechanism can be designed to be thin. The thickness of the vertical mechanism of the structure shown in FIG. 2 is constituted by the thickness of the trimmer 3, the lever 28, the outer blade case 2, the concave portion receiving the through shaft 28c in the knob 6, and the thickness of the knob 6 excluding the concave portion. On the other hand, as shown in FIG. 16, for example, the thickness of the vertical mechanism in the present invention includes the thickness of the first connection shaft 23A and the second connection shaft 23B, the thickness of the tilt plate 23, and the knob 6
This is because only the thickness of the operation part 6B portion of FIG. In this way, the electric razor that can design the vertical mechanism thinly,
A slim and beautiful appearance can be realized.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of a conventional up and down mechanism for moving a trimmer up and down.

FIG. 2 is a sectional view showing the vertical mechanism shown in FIG. 1;

FIG. 3 is a rear view showing a state where the trimmer of the electric razor according to the embodiment of the present invention is raised.

FIG. 4 is an exploded perspective view of the electric shaver shown in FIG. 3;

FIG. 5 is a partial cross-sectional front view showing a connection structure between a razor body and an outer blade case.

FIG. 6 is an exploded perspective view of the outer blade case.

FIG. 7 is a side view of the upper part of the electric shaver of the present invention.

FIG. 8 is an enlarged sectional view showing a state where a beard is shaved with a trimmer.

FIG. 9 is an exploded perspective view showing a connection structure between the trimmer and the outer blade case.

FIG. 10 is a bottom view of the outer blade case.

FIG. 11 is a front view showing a trimmer to which a retractable elastic body is connected.

FIG. 12 is a front view showing the vertical mechanism in a state where the trimmer is raised.

FIG. 13 is a front view showing the up-down mechanism with the trimmer lowered.

FIG. 14 is an enlarged view showing a state in which the tilt plate is tilted.

FIG. 15 is a front view showing another example of the tilting plate.

16 is a cross-sectional view of the vertical mechanism shown in FIG. 13 taken along line AA.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Razor body 1A ... Through-hole 2 ... Outer blade case 3 ... Trimmer 3A ... Fixed trimmer blade 3
B: vibrating trimmer blade 3a: convex ridge 3b: downward bent edge 3c: slit 3d: slit 4: arch outer blade 4A: mesh blade 4
B: Holder 5: Slit outer blade 5A: Metal plate 5
B: Holder 6: Knob 6A: Moderation part 6
B: operation parts 6a: slit 6b: moderation arm 6c: convex part 6d: connecting hole 6e: connecting pin 6f: connecting hook 6g: convex part 7: detachable hook 7A: hook part 7
B ... Push button part 8 ... Hook recess 9 ... Press spring 10 ... Slide table 11 ... Inner blade 12 ... Connecting arm 12A ... Slit 13 ... Vibrating rod 14 ... Drive arm 15 ... Vertical guide mechanism 16 ... Extrusion rod 16A ... Slit 17 … Vertical mechanism 18… Retractable elastic body 18A… Loop part 1
8B: elastic arm portion 19: pin 20: locking projection 21: connection recess 22: case 23: tilting plate 23A: first connection shaft 2
3B: second connecting shaft 23C: shaft hole 23D: boss 24: pin 25: concave portion 26: moderating convex portion 27: sliding groove 28: lever 28A: pin 2
8B: connecting shaft 28C: penetrating shaft 29: arch slit 30: plate rotating mechanism

Claims (9)

[Claims] 1. A trimmer (3) attached to a case (22) so as to be able to move up and down, and is connected to the trimmer (3) via an up-down mechanism (17) and can be moved up and down. And a knob (6) attached to the case (22),
In an electric shaver in which the up-down mechanism (17) increases the up-down movement stroke of the knob (6) and moves the trimmer (3) up and down, the up-down mechanism (17) has a tilting plate (23). The tilting plate (23) is connected via a plate rotating mechanism (30) so as to be tiltable to the case (22), and is directly or indirectly connected to the trimmer (3). (23A) and knob
(6) a second connecting shaft (23B) connected to the plate rotating mechanism (30), the first connecting shaft (23A), and the second connecting shaft (23B) have three points that are not linear. And a plate rotation mechanism
The distance between (30) and the first connection shaft (23A) is determined by the plate rotation mechanism.
An electric razor, wherein the electric razor is provided so as to be longer than a distance between the (30) and the second connecting shaft (23B). 2. A plate rotation mechanism (30) comprising a pin (24) fixed to a case (22) and a shaft hole provided in a tilting plate (23).
The electric shaver according to claim 1, wherein the electric shaver comprises (23C). 3. The first connection shaft (23A) and the second connection shaft (23B)
2. The tilt plate (23) is disposed on the same side of the tilt plate (1).
Electric razor described in. 4. The tilt plate (23) includes a first connecting shaft (23A).
The electric shaver according to claim 3, wherein the second connecting shaft (23B) and the second connecting shaft (23B) are arranged on the back surface facing the front surface of the case (22). 5. The electric shaver according to claim 1, wherein the first connecting shaft (23A) of the tilting plate (23) is connected to the trimmer (3) via the pushing rod (16). 6. The tilting plate (23) is a triangular plate, and a plate rotating mechanism (30) and a first connecting shaft are provided at corners of the triangular plate.
The electric shaver according to claim 1, wherein the electric shaver (23A) and the second connecting shaft (23B) are provided. 7. A tilting plate (23) is a bent plate having a rectangular shape in plan view, and one end of the bent plate is provided with a plate rotating mechanism (3).
0), the first connecting shaft (23A) at the other end, and the second connecting shaft (23A) at the bent part.
The electric shaver according to claim 1, further comprising (23B). 8. A case connecting the tilting plate (23).
The electric razor according to claim 1, wherein (22) is one of a main case of the electric razor and an outer blade case on which an outer blade is mounted. 9. A knob (6) connected to the tilting plate (23) and a moderation part (6A) connected to the moderation part (6A) and movable up and down to the case (22). It has an operating part (6B) that is connected, and the lower end face of the push rod (16) is disposed at a position facing the upper end face of the moderation part (6A). Rod (16)
The electric shaver according to claim 5, wherein a lower end surface of the electric shaver contacts an upper end surface of the moderation part (6A).