JPH0813316B2 - Rotary electric razor - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary electric shaver, and more specifically, an inner blade closely contacting the inner surface of a mesh-shaped outer blade is driven to rotate about a horizontal axis. The present invention relates to a rotary electric shaver having a cylinder type configuration.

[Conventional technology]

As a rotary electric shaver of this type, one inner blade unit is configured by combining a cylinder type inner blade, a motor, and an inner blade drive mechanism that transmits the motor output to the inner blade. There is one in which the inner blade is supported so as to be vertically movable inside and is constantly pushed up by a leaf spring to bring the inner blade into close contact with the inner surface of the outer blade (Japanese Utility Model Publication No. 53-61290).

Further, there is a rotary electric razor of this type provided with a shaving blade unit formed by combining a fixed comb blade and a driving comb blade for shaving (JP-A-59-207181).

[Problems to be Solved by the Invention]

However, in the rotary electric shaver including the above-described shaving blade unit, the shaving blade drive mechanism uses the rotation of the inner blade itself to drive the movable comb blade of the shaving blade unit. Therefore, the shaving blade drive mechanism must be assembled so as to move up and down along with the vertical movement of the inner blade, and there is a concern that the driving stability of the movable comb blade is lacking. , The assembly was very complicated and it was not practical.

The present invention, as described above, in the rotary electric shaver of a form in which the inner blade unit is supported movably up and down in the main body case, and includes a shaving blade unit,
An object of the present invention is to stabilize the driving of the movable comb blade of the shaving blade unit and to simplify the driving structure.

[Means for solving the problem]

In the rotary electric shaver of the present invention, as shown in FIG. 1, for example, the shaving blade drive mechanism 37 for converting the rotation of the motor 17 into a linear reciprocating motion and transmitting it to the movable comb blade 51 is rotated by the rotation of the motor 17. It is installed in the main body case 1 separately from the inner blade driving mechanism 18 for transmitting to the inner blade 7.

[Action]

As described above, by incorporating the shaving blade drive mechanism 37 separately from the inner blade drive mechanism 18, the shaving blade drive mechanism
37 does not need to be moved up and down together with the inner blade drive mechanism 18. Therefore, the shaving blade drive mechanism 37 need not be moved up and down together with the inner blade drive mechanism 18 as in the conventional case.
The movable comb blade 51 can be driven.

〔Example〕

An embodiment of a rotary electric shaver according to the present invention will be described with reference to FIGS. 1 to 11.

2 and 3, the main body case 1 of this is shown.
The front and rear cases 1a and 1b are abutted against each other and integrally connected by screws or the like. A pair of front and rear circuit boards 2 and two rechargeable batteries 3 and 3 sandwiched therebetween are incorporated in the lower half of the main body case 1, and a charging plug 4 is provided on the bottom of the case. Is installed.

A mesh-shaped outer blade 6 is attached to the upper part of the main body case 1 by being bent in an arch shape via an outer blade holder 5, and a cylinder-shaped inner blade 7 is horizontally mounted on the upper half of the main body case 1. The inner blade unit 8 which is axially supported is provided so as to be vertically movable and urged by pushing up. Further, a switch operating knob 24 is mounted on the front surface of the front case 1a, and a shaving unit 9 is mounted on the rear surface upper end of the rear case 1b.

In FIG. 2, the outer blade holder 5 is engaged and supported by a locking claw 12a provided on the upper right side of the main body case 1, and the left wall portion of the outer blade holder 5 is attached to the left upper end of the main body case 1 by a spring 13.
It is engaged with and supported by a locking claw 12b with a knob mounted via. Therefore, the locking claw 12b with the knob on the left side is
The outer blade holder 5 can be removed from the main body case 1 together with the outer blade 6 by pushing in against.

2 and 10, the inner blade unit 8 includes a cylinder-shaped inner blade 7, a pair of left and right inner blade support frames 15 and 16 for laterally supporting the inner blade 7 via a driven shaft 14, a motor 17, and The inner blade unit 8 is composed of a multistage gear group for transmitting the rotation of the motor 17 to the driven shaft 14. The inner blade unit 8 is supported in the main body case 1 by the upper and lower support members 19 and 20 so as to be vertically movable. It

As shown in FIG. 10, the cylindrical inner blade 7 is formed by spirally forming a plurality of cutting blades 7a on the outer peripheral surface of the cylinder in the axial direction, and only the both ends in the axial direction are formed. In, it is configured as a perfect column without a cutting edge.

In FIG. 2, the left and right inner blade support frames 15 and 16 are made of metal or hard plastic and are vertically penetrated into the upper wall 1c of the body case 1, and the lower ends of both frames 15 and 16 are bottom frames 21. Is assembled with a screw 10 and is assembled into a U shape as a whole in a front view. Bearing bosses 15a and 16a that rotatably support the driven shaft 14 are provided at the upper ends of the left and right inner blade supporting frames 15 and 16, and the inner blade driving frame 16 on the right side is driven by the inner blades as shown in FIG. A mechanism 18 is attached.

In FIG. 2, upper and lower plastic support members are provided on the bottom side of the bottom frame 21 of the left and right inner blade support frames 15 and 16.
19 and 20 are piled up and are integrally connected with a screw 25. The motor 17 is fitted and supported in a vertically oriented posture on a cylindrical motor holder 22 integrally formed in the center of the lower support member 20. An output gear 23 fixed to an output shaft 17a protruding above the motor holder 22 from the upper end of the motor 17 is transmission-coupled to the inner blade drive mechanism 18. The inner blade drive mechanism 18
The rotatably supports the driving shaft 11 between the inner blade supporting frames 15 and 16 above the bottom frame 21, and makes the gear 31 fixed at the axial center of the driving shaft 11 orthogonal to the output gear 23. A gear 32 meshed with and fixed to the shaft end of the driving shaft 11 is transmitted to a gear 33 fixed to the shaft end of the driven shaft 11 via a group of intermediate gears 34 (see FIG. 4). The support member 19 and the bottom frame 21 are provided with openings 39 and 40 at their central portions as shown in FIG. 10, so that they interfere with the output gear 23 and the gear 31. Are avoiding.

An eccentric cam 36 is fixed below the output gear 23 of the output shaft 17a, and a shaving blade drive mechanism 37 for driving a shaving blade unit 35 incorporated in the shaving unit 9 is mounted on the eccentric cam 36 as described later. Transmission coupled.

As shown in FIG. 10, the support member 19 on the upper side is provided with thin elastic arms 19a, 19a facing leftward and rightward on the left and right ends of the thick plate portion 19c that is overlapped and fastened to the bottom side of the bottom frame 21. Is integrally projected horizontally, and a rod-shaped fixed end portion 19b for fixing to the inner surface side of the main body case 1 is provided at the tip of each elastic arm 19a, 19a.
・ 19b is formed. The lower support member 20 has thin elastic arms 20a, 20a and thick fixed ends 20b, 20b integrally formed on the left and right ends of the motor holder 22.

On the other hand, as shown in FIG. 2, a pair of left and right engaging recesses 26, 26 and 27, 27 are provided on the inner surface of the main body case 1 so as to project vertically. The fixed end portions 19b and 20b of the elastic arms 19a and 20a are engaged and supported by the engaging recesses 26 and 27, respectively. As a result, the support members 19 and 20 are supported in the main body case 1 so as to be vertically movable via the pair of upper and lower and right and left elastic arms 19a and 20a. The elastic arms 19a, 20a are configured to be elastically swingable only in the vertical direction by forming the plate thickness in the vertical direction thin and forming the plate width in the front-back direction wide. Therefore, the inner blade unit 8 can move up and down while being positioned in the front-rear direction.

As shown in FIG. 2, a spring 30 formed of a torsion coil spring is interposed between the motor holder 22 of the lower support member 20 and a projecting piece 29 projecting from the inner surface of the main body case 1. The entire blade unit 8 is constantly urged upward by the spring 30.

In FIGS. 3 and 7, the switch operation knob 24 mounted on the outer surface side of the front case 1a of the main body case 1 has a switch plate 41 and a front case which are vertically slidably locked on the inner surface side of the front case 1a. They are integrally connected via 1a. The upper and lower limits of sliding of the switch operation knob 24 are the upper step portion 42 and the lower step portion formed on the outer surface side of the front case 1a.
It is regulated by the contact with 43 respectively. At the lower end of the switch plate 41, a pair of left and right elastic arms 44, 44 for moderation
Are connected to each other, and the switch operation knob 24 is engaged with the tip of the elastic arm 44 on the inner surface of the front case 1a so that the switch operation knob 24 is at an intermediate position one step above the lower limit of the slide lower limit and the upper limit of the slide upper limit. Projections 45 that elastically position and hold are provided in upper and lower two stages. Further, a pair of slide contacts 46 are provided in the lower part of the switch plate 41, and a motor start / stop line corresponding to the slide contacts 46 is formed by printing on the front surface of the front substrate 2.
When the switch operation knob 24 is at the lower limit non-use position, the connection between the motor 17 and the battery 3 is disconnected, and when it is at the intermediate position and the upper limit use position, the motor 17 is connected to the battery 3 and driven. It has become.

2 and 3, a bristle tray 47 is attached to the rear side of the upper part of the main body case 1 so as to be pulled out rearward. The bristle tray 47 is arranged immediately below the inner blade 7 between the inner blade supporting frames 15 and 16 on the left and right of the inner blade unit 8. As shown in FIG. 2, the gap between the upper wall 1c of the main body case 1 and the inner blade supporting frames 15 and 16 is closed by the bristles 38 made of rubber or the like, and falls from the inner blade 7. The debris is prevented from entering the body case 1.

As shown in FIGS. 1 and 3, a recess 48 for accommodating the shaving unit 9 is formed below the bristle tray 47 on the rear side of the upper portion of the main body case 1. The shaving unit 9 includes a shaving blade unit 35, which is formed by stacking a movable comb blade 51 on a fixed comb blade 50 fixed to a holder 49 so as to reciprocally slide in the left-right direction, and the shaving blade unit 35. It consists of a shaving case 52. The shaving case 52 is stored in the recess 48 (FIG. 3).
And a position projecting to the outside of the recess 48 to the outside (FIG. 1), and is accommodated in the recess 48 so as to be movable in the front-rear direction in parallel. Then, the shaving blade unit 35 pivots the support shafts 53 projecting from the left and right side surfaces of the holder 49 to the inner surfaces of the left and right side walls of the shaving case 52, so that the shaving blade unit 35 is installed in the shaving case 52 as shown in FIG. It can be swung up and down about the support shaft 53 between a posture in which the blade edge is retracted and a retracted posture in which the blade edge is projected rearward to the outside of the shaving case 52 as shown in FIG.

The operation of moving the shaving case 52 back and forth in the recess 48 and the operation of swinging the shaving blade unit 35 in the shaving case 52 forward and backward around the support shaft 53 are performed by operating the switch operation knob 24. By vertically sliding between the intermediate position, which is pushed up one step from the lower limit position, and the upper limit position, the operation can be performed in conjunction with this. That is, between the shaving case 52 and the switch operating knob 24, there is provided a retracting / operating mechanism 54 that converts and transmits the vertical movement of the switch operating knob 24 into the forward / backward movement of the shaving case 52 and the swing of the shaving blade unit 35. It is provided. Regarding the entry / exit operation mechanism 54,
As shown in FIG. 10, a pair of left and right arms 55 is provided projecting from the holder 49 of the shaving blade unit 35, and left and right pins 56 and 57 are provided coaxially at the tips of the arms 55. Then, as shown in FIG. 1 and FIG. 9, the tip of the arm 55 is projected from a notch 52a opened in a part of a wall 59 of the shaving case 52 facing the inside of the main body case 1, and the tip of the arm 55 is protruded. The pins 56 are slidably engaged with the pin guide grooves 58 of the "L" shape formed on the inner surfaces of the left and right side walls inside the recess 48 of the main body case 1. In the shaving case 52, the pin 56 has a straight groove portion that is horizontal in the front-rear direction of the “T” -shaped pin guide groove 58.
By sliding along the 58a, the inside of the recess 48 is translated in the front-rear direction, and the pin 56 is slid along the arcuate groove portion 58b centered on the support shaft 53 of the pin guide groove 58. As a result, the shaving blade unit 35 swings about the support shaft 53 in the shaving case 52 by about 90 degrees.

A swing plate 60 is installed inward of the recess 48 in the main body case 1, and an elevating plate 61 is installed between the swing plate 60 and the switch operation knob 24.

As shown in FIGS. 1 and 5, the rocking plate 60 has a support shaft 62 projecting from the left and right ends thereof, and the support shaft 62 is fitted into a shaft hole 63 provided on the inner wall side of the main body case 1. The supporting shaft
It can swing up and down around 62. An arm portion 65 having a long hole 64 is projected from the rear end of the swing plate 60, and the long hole 64 of the arm portion 65 is formed.
Then, the pin 57 of the arm 55 on the side of the shaving blade unit 35 is engaged. Further, the swing plate 60 has a horizontal rod 66 inserted and fixed at its front end in the left-right direction, and a tension spring 68 is applied between the left and right end portions of the horizontal rod 66 and the spring receiving portion 67 in the main body case 1. ,
The spring 68 constantly pulls the front end side of the swing plate 60 downward (see FIG. 3).

As shown in FIG. 7, the elevating plate 61 is attached along the inner surface of the main body case 1 so as to be vertically slidable in correspondence with the lower position of the front end of the swing plate 60. At the lower limit position, the horizontal rod 66 of the swing plate 60 is received by a forked arm portion 69 provided on the upper end of the elevating plate 61 (see FIG. 3).

Therefore, as shown in FIG. 3, when the switch operating knob 24 is at the lower limit position and the intermediate position where the switch operating knob 24 is pushed up one step from this position, the shaving case 52 is stored in the recess 48. Then, when the switch operating knob 24 is pushed up one more step from the intermediate position, the lifting plate 61 is pushed up by the upper end of the switch plate 41 integrated with the knob 24 as shown in FIG. The moving plate 60 swings around the support shaft 62 in the clockwise direction indicated by the arrow a against the force of the spring 68, and the swinging of the swinging plate 60 causes the arm portion 65 to move the pin 56 of the sharp shaving blade unit 35. The inside of the linear groove portion 58a of the pin guide groove 58 is pushed backward, and the shaving case 52 moves in parallel in the recess 48 backward as indicated by arrow b. Following the end of the shaving case 52 projecting rearward in the recess 48, the shaving blade unit is swung clockwise by swinging the swing plate 60.
The pin 56 of 35 slides downward in the arc-shaped groove portion 58b of the pin guide groove 58, and the shaving blade unit 35 swings around the support shaft 53 in the counterclockwise direction indicated by the arrow c to move its blade edge to the rear outside. Make it protrude. This state is maintained by the switch operating knob 24 stopping at a position where the elastic arm 44 has passed over the upper projection 45 as shown in FIG.

When the switch operating knob 24 is pulled downward from the upper limit position, the pulling force of the spring 68 causes the rocking plate 60 to rock counterclockwise in the direction opposite to the arrow a shown in FIG. The oscillating plate 60 and the elevating plate 61 are returned to their original positions by being pushed down by the horizontal rod 66. As the swing plate 60 swings, as shown in FIG. 3, the shaving blade unit 35 reciprocates into the shaving case 52 and swings,
The shaving case 52 will retreat into the recess 48.

The shaving blade unit 35 is a shaving case as described above.
When it swings protruding from 52, its movable comb blade 51 moves
It is driven by 17 as a power source. That is, the drive is
This is performed by providing a shaving blade drive mechanism 37 between the shaving blade unit 35 and the output shaft 17a of the motor 17 separately from the inner blade driving mechanism 18.

The shaving blade drive mechanism 37 converts the rotation of the motor 17 into a linear reciprocating motion and transmits it to the movable comb blade 51. Specifically, the eccentric cam 36 is fixed below the output gear 23 on the output shaft 17a of the motor 17. Also, between the output shaft 17a of the motor 17 and the shaving unit 9, the plastic vibrator 70
To arrange. As shown in FIGS. 6 and 10, the vibrator 70 includes a vibrator main body 72 having a long hole 71 in the middle of which a narrow hole portion 71a and a wide hole portion 71b are continuous in the front-rear direction. A pair of left and right thin-walled support arms 73, 73 are cantilevered forward from the left and right rear ends, and downward pins 74 are provided at the rear end of each arm 73.
And the pin 74 is mounted on the upper surface of the motor holder 22 of the supporting member 20 as shown in FIG.
It is fitted and fixed to 75. The eccentric cam 36 is engaged in the elongated hole 71 of the vibrator 70.

As shown in FIG. 1, on the wall 59 of the shaving case 52,
Drive piece having bifurcated engaging portions 76 and 77 at its upper and lower ends
78 is attached to the central portion in the vertical direction so as to be swingable left and right by a connecting pin 79. A protrusion 80 protruding from the movable comb blade 51 is engaged with the engaging portion 76 on the upper side of the drive piece 78 with the shaving blade unit 35 protruding rearward, and the shaving blade unit 35 is inserted. The protrusion 80 is disengaged from the engaging portion 76 by retracting. Further, with respect to the lower engaging portion 77 of the drive piece 78, the projecting piece 81 projecting from the center of the rear end of the vibrator 70 is engaged and disengaged in conjunction with the vertical sliding operation of the switch operation knob 24. To That is, as shown in FIG. 6, the vibrator pedestal 75 has slide projections 82 protruding from the rear portions of the left and right ends of the transducer case 75, and the grooves 84 of the left and right fixed guides 83 provided in the front-rear direction inside the main body case 1. By slidably engaging with, it is possible to move horizontally in the front-back direction.
Further, as shown in FIG. 1, pins 85 are provided so as to project from the front portions at the left and right ends of the vibrator pedestal 75, and the link 85 is connected to the pins 85.
One end of the connecting link 86 is rotatably connected, and the other end of the connecting link 86 is rotatably connected to pins 87 projecting from the lower portions of the left and right ends of the elevating plate 61.

Thus, when the switch operating knob 24 is at the lower limit position, as shown in FIG. 3 and FIG.
75 is in the forward position and the eccentric cam 36 is the wide hole of the vibrator 70.
The vibrator 70 is located at 71b, the contact between the vibrator 70 and the eccentric cam 36 is avoided, and the vibrator 70 is not driven. Switch operation knob
When the 24 is pushed up to the upper limit position, the lift plate 61 rises as described above as shown in FIG. 1, and with this rise, the vibrator pedestal 75 is connected to the rear while the vibrator 70 is mounted. It horizontally moves via the link 86, the protrusion 81 of the vibrator 70 engages with the lower engagement portion 77 of the drive piece 78, and the eccentric cam 36 has a narrow width set to the same outer diameter as that of the eccentric cam 36. The vibrator 70 is engaged in the hole 71a, and as the eccentric cam 36 rotates, the vibrator 70 is reciprocally driven in the left-right direction substantially in parallel on the vibrator pedestal 75 due to elastic deformation of the support arms 73, 73. By driving the vibrator 70, the driving piece 78 swings left and right around the coupling pin 79 to drive the movable comb blade 51.

When the switch operation knob 24 is pulled down from the upper limit position, the lifting plate 61 is lowered by the pulling of the spring 68 as described above, and with this lowering, the vibrator pedestal 75 is pulled back to the front position via the connecting link 86, The projecting piece 81 of the vibrator 70 disengages from the lower engaging portion 77 of the drive piece 78.

As shown in FIG. 6, the vibrator pedestal 75 has left and right bosses 88 protruding from the motor holder 22 at the center thereof.
There is a through hole 89 penetrating 88, and the left and right hole edges 89 in the through hole 89.
a and 89b are formed in a thin corrugated shape that is elastically deformable, and front and rear concave portions 90 and 91 that circumscribe the peripheral surface of the boss 88 are provided.
As shown by the solid line state in the figure, when the vibrator pedestal 75 is in the front retracted position, the recess 91 on the rear side engages with the boss 88, and the vibrator pedestal 75 is shown by the two-dot chain line state in FIG. When in the rearward approach position, the front recess 90 engages with the boss 88, and
Are positioned and held in their respective positions.

[Another embodiment]

12 to 15 show another embodiment of the present invention. In this embodiment, the retracting / operating mechanism 54 of the shaving blade unit 35 and the shaving blade driving mechanism 37 are different from those of the above embodiment. The withdrawal operation mechanism 54 of this embodiment has a sharp shaving blade unit 35 in a recess 48 opened in the rear surface of the main body case 1.
The blade edge is made to be in a lateral posture in which it projects rearward, and in this posture, it moves forward and backward in conjunction with the lifting operation of the lifting plate 61. For that purpose, between the shaving blade unit 35 and the elevating plate 61, a dogleg-shaped link 93 which is swingable back and forth around the shaft 92 is arranged, and the shaft 92 of the link 93 is provided.
A long hole 94 provided at one upper end is a sharp shaving blade unit
A horizontal rod 97, which is rotatably connected to a pin 96 of an arm 95 protruding from 35 and is attached to the other end of the link 93 below the shaft 92, is received by the upper end of the lift plate 61. The link 93 is urged to rotate counterclockwise by a tension spring 68 hung across the horizontal rod 97 and the spring receiving portion 67 in the main body case 1. At that time, as shown in FIG. 14, when the lift plate 61 is pushed up by the upper end of the switch plate 41 integral with the switch operation knob 24, the link 93 swings clockwise around the shaft 92 against the spring 68. The shaving blade unit 35 is moved to project rearward from the recess 48. When the switch operating knob 24 is pulled down, the link 93 swings counterclockwise around the shaft 92 due to the pulling force of the spring 68, and the shaving blade unit 35 retracts and moves into the recess 48 as shown in FIG. Let

Further, in the shaving blade drive mechanism 37, a drive piece 78 is pivotally mounted below the recess 48 in the main body case 1 so as to be swingable right and left around a shaft 98. Output shaft 17a of drive piece 78 and motor 17
An L-shaped vibrator 99 is arranged between the upper eccentric cam 36 and the upper eccentric cam 36. The vibrator 99 has a long hole 71 in which a wide hole portion 71b having a width wider than the outer diameter of the eccentric cam 36 and a narrow hole portion 71a having the same size as the outer diameter of the eccentric cam 36 are continuous in the front-rear direction. Board 99a,
The horizontal plate portion 99a includes a vertical plate portion 99c integrally formed at the rear end of the horizontal plate portion 99a via a thin hinge 99b. The vertical plate portion 99c has a laterally elongated oblong hole 100 in the vertical middle portion thereof.
Insert 00 into the shaft 101 protruding from the inner surface of the main body case 1,
A bifurcated engaging portion 102 is provided at the upper end thereof and is engaged with the lower end portion 78a of the drive piece 78. The horizontal plate portion 99a engages the eccentric cam 36 in the long hole 71, and the front end portion thereof is connected to the link.
Bifurcated arm protruding downward from the shaft 92 of 93
It is pivotally connected to 103 via a joint 104. The joint 104 consists of left and right horizontal shafts 105, which project from the left and right sides, and left and right horizontal shafts 105 and 10.
5 has a vertical axis 106 between them, and the horizontal axis 105 is the arm 1
The vertical axis 106 is inserted into a long hole 107 provided in 03, and the vertical axis 106 is inserted into a hole 108 provided at the front end of the horizontal plate portion 99a of the vibrator 99. At that time, as shown in FIG. 14, when the link 93 receives the push-up action of the lifting plate 61 and swings clockwise, the shaving blade unit 35 moves rearward from the recess 48 as described above. At the same time, the protruding piece 80 protruding from the movable comb blade 51 is engaged with the bifurcated engaging portion 76 provided at the upper end of the drive piece 78. At the same time, the oscillator 93 is rotated by the clockwise swing of the link 93.
Moves horizontally forward in the case while being pulled by the arm 103 and the joint 104 that are integral with the link 93, and the eccentric cam 36 engages with the narrow hole 71a as shown in FIG.
While the oscillator 99 is guided by the shaft 101 as the
It reciprocates around the vertical axis 106 of 04 with a constant stroke in the left-right direction. Drive piece with left and right reciprocating motion of this oscillator 99
78 swings around the shaft 98 to drive the movable comb blade 51.

〔The invention's effect〕

The rotary electric shaver of the present invention is a shaving machine that converts the rotation of the motor 17 into a linear reciprocating motion and transmits it to the movable comb blade 51 between the movable comb blade 51 of the shaving blade unit 35 and the motor 17. Since the blade drive mechanism 37 is installed separately from the inner blade drive mechanism 18, its structure is simpler than that of the conventional one in which the shaving blade drive mechanism 37 is moved up and down together with the inner blade drive mechanism 18. And the movable comb blade 51 can be driven stably and reliably.

[Brief description of drawings]

1 to 11 show an embodiment of a rotary electric shaver according to the present invention. FIG. 1 is a vertical sectional side view of essential parts, FIG. 2 is a vertical sectional front view, and FIG. A- in the figure
A line sectional view, FIG. 4 is a BB line sectional view in FIG.
FIG. 5 is a sectional view taken along the line CC in FIG. 2, and FIG.
FIG. 7 is a sectional view taken along line DD in FIG.
-E line sectional view, FIG. 8 is a FF line sectional view in FIG. 2, FIG. 9 is a GG line sectional view in FIG. 2, and FIG. 10 is an inner blade unit and a shaving unit, respectively. FIG. 11 is an exploded perspective view and FIG. 11 is an external perspective view. 12 to 15 show another embodiment of the present invention,
FIG. 12 is a vertical cross-sectional side view of an essential part showing the retracted state of the shaving blade unit, FIG. 13 is a sectional view taken along line HH in FIG.
FIG. 14 is a vertical cross-sectional side view of an essential part showing a protruding state of the shaving blade unit, and FIG. 15 is a sectional view taken along the line I-I in FIG. 1 ... Main body case, 6 ... Outer blade, 7 ... Inner blade, 8 ... Inner blade unit, 14 ... Driven shaft, 15/16 ... Inner blade support frame, 17 ... Motor, 18 ... Inner Blade drive mechanism, 30 …… Spring, 35 …… Shaving blade unit, 37 …… Shaving blade drive mechanism, 50 …… Fixed comb blade, 51 …… Movable comb blade.

Claims (1)

[Claims] 1. An inner blade support in which a mesh-shaped outer blade (6) is bent and stretched in an arch shape on the upper part of a main body case (1), and a cylinder type inner blade (7) is supported on both sides via a driven shaft (14). Frames 15 and 16 and inner blade supporting frames 15 and 16
17 and the rotation of the motor 17
Inner blade unit 8 consisting of inner blade drive mechanism 18 that is transmitted to 14
Is supported in the main body case 1 so as to be movable up and down, and is constantly urged by the spring 30 so as to keep the inner blade 7 in close contact with the inner surface of the outer blade 6. , A rotary electric shaver having a shaving blade unit 35, which is a combination of a fixed comb blade 50 and a movable comb blade 51 that slides in contact with the movable comb blade 51 and reciprocates linearly, the movable comb blade 51 and a motor. A shaving blade drive mechanism 37 that converts the rotation of the motor 17 into a linear reciprocating motion and transmits it to the movable comb blade 51 is provided separately from the inner blade drive mechanism 18 and the inner blade drive mechanism 18. And a rotary electric razor.