JP2928844B2 - Rotary electric 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 rotary electric shaver having a cylinder-type inner blade, and to an improved means for attaching and detaching the inner blade.

[0002]

2. Description of the Related Art As a rotary electric shaver of this type, for example, as disclosed in Japanese Patent Application Laid-Open No. 3-140184, an inner blade is provided to enable cleaning and replacement of a cylindrical inner blade. A bearing housing that cantileverly supports the horizontal axis at one end thereof, and an inner blade unit that integrates a coupling frame projecting from the bearing housing toward the other end of the inner blade below the inner blade, There is a type in which the inner blade unit is detachably provided to an upper portion of a main body case provided with drive transmission means. At the time of mounting, the inner blade unit is mounted axially on the upper part of the main body case, and the horizontal axis on the other end side of the inner blade is inserted into the bearing on the main body case, and the tip of the coupling frame is outside the bearing. It is engaged with a lock claw of an inner blade release button slidable up and down via a spring, thereby preventing the horizontal shaft from coming off the bearing. At the time of removal, when the inner blade release button is pressed down against the spring force to release the engagement with the coupling frame, the horizontal shaft of the inner blade unit can be pulled out from the bearing on the main body case.

[0003]

However, in the above-mentioned prior art, the operation of removing the inner blade unit is performed by holding the main body case with one hand and using the same finger (mainly a thumb) to hold the main body case. Depress the blade release button to release the engagement with the coupling frame, and further keep the inner blade release button pressed down, then pull the entire inner blade unit in the axial direction by holding the bearing housing with the other hand. No. However, at this time, the gripping force is reduced when the gripping hand holds down the inner blade removal button, or the gripping force is easily removed by mistake, and the inner blade removal button is small and thin, and In order to push down the inner blade unit against the force of the spring, the inner blade unit may be forcibly pulled out in the axial direction in a locked state where the inner blade release button is not completely pressed down to the unlock position. In such a case, the hand holding the bearing housing and removing it while holding it on the inner blade side, or the hand trying to remove it while holding it on the inner blade may slip on the edge of the inner blade and cause injury. there were. The reason why it is difficult to completely push down the inner blade release button to the unlock position is because, besides the above reason, when the entire inner blade unit is provided so that it can float up and down, the entire inner blade unit is pushed down with the inner blade release button pressed down. Is also caused by the decrease.

An object of the present invention is to provide a rotary electric shaver provided with a mechanism for removing the inner blade unit using the above-mentioned inner blade removing button, thereby improving the removal mechanism by simplifying the removal mechanism and improving safety. The point is to aim.

[0005]

A rotary electric shaver, which is a premise of the present invention, has a main body case 1 as shown in FIG.
The inner blade unit 13 is detachably provided on the upper part of the blade. The inner blade unit 13 is a cylinder type and has a horizontal shaft 56 at both left and right ends.
, A bearing housing 57 that cantileverly supports the horizontal shaft 56 at one end thereof, passive means 60 provided on the horizontal shaft 56 in the bearing housing 57, and a bearing housing below the inner blade 2. It is integrally combined with a coupling frame 59 projecting from 57 to the other end of the inner cutter 2.
The body case 1 has a pair of left and right support frames 25, 25 projecting from the upper part of the body case 1 so as to face each other, and incorporates a drive motor 29 therein. A receiving portion 63 for receiving and supporting the lower end of the bearing housing 57 is provided at the upper end of one support frame 25, and the support frame 25 is provided with a drive transmitting means 30 for transmitting the rotational force of the drive motor 29 to the passive means 60. . At the upper end of the other support frame 25, a bearing 47 for rotatably supporting a horizontal shaft 56 at the other end of the inner cutter 2 is fixed, and the tip of the coupling frame 59 is inserted and removed below the bearing 47. A coupling hole 64 to be freely inserted is provided. An inner blade removal button 65 slidable up and down is mounted on the outer side of the bearing 47. A tip of a coupling frame 59 inserted into the coupling hole 64 along with the vertical sliding of the inner blade removal button 65 on the inner surface side of the inner blade removal button 65. A lock claw 66 is formed which engages with and disengages from the lock claw 66.

In addition, the present invention allows the horizontal shaft 56 of the inner cutter unit 13 to move from the bearing 47 between the inner cutter unit 13 and the support frame 25 as soon as the engagement between the coupling frame 59 and the lock pawl 66 is released. It is characterized in that there is provided a means 70 for pressing and moving in the axial direction to be extracted. More specifically, as the pressing and moving means 70, a pressing actuator 71 is provided above or below the lock claw 66 of the inner blade removal button 65, and the lock claw is provided in accordance with the sliding operation of the inner blade removal button 65 in the unlocking direction. By disengaging the engaging frame 66 from the coupling frame 59 and further performing a sliding operation in the same direction, the pressing operator 71 presses and contacts the distal end of the coupling frame 59, and the coupling frame 59 is brought into contact with the coupling hole 64 by this contacting action. To extrude.

[0007]

The inner blade unit 13 is maintained in the mounted state by inserting the tip of the coupling frame 59 into the coupling hole 64 and engaging with the lock claw 66 of the inner blade release button 65. Slide the inner blade release button 65 so that the lock claw 66 is
As soon as the inner blade unit 13 is removed from the front end of the shaft 9, the inner blade unit 13 is moved in the axial direction of extracting the horizontal shaft 56 from the bearing 47 by the pressing and moving means 70. Thus, the inner blade unit 1
When the horizontal shaft 56 is automatically pulled out of the bearing 47 slightly immediately after the engagement of the inner shaft 3 with the lock claw 66, the inner blade is removed after confirming that the lock has been completely released by checking the movement state. When the sliding operation of the button 65 is released and the main body case 1 is firmly grasped by the grasping hand, the bearing housing 57 can be held by hand and the inner blade unit 13 can be pulled out to be in a posture of being pulled out. Inner blade unit 1
3 can be easily removed from the main body case 1.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a rotary electric shaver according to the present invention will be described with reference to FIGS. 2 to 4, the electric razor has a structure in which a cutting head 4 including a cylindrical inner blade 2 and a mesh-shaped outer blade 3 is provided at an upper portion of a main body case 1. The lower part of the rear surface of the main body case 1 is provided with a charging plug 6.

3 and 5, the main body case 1 abuts front and rear plastic cases 1a and 1b and is integrally connected by upper and lower fastening screws 5 (see FIG. 7).
On the outer surface of the front case 1a, a power switch button 9 has a lower standby position (switch-off position) indicated by a solid line in FIG.
Motor start position one step higher than this (switch on position)
It can be slid up and down freely. The switch button 9 is integrally connected to a switch operation plate 10 arranged along the inner surface of the front case 1a, and the switch operation plate 10 is mounted on the circuit board 11 provided in the main body case 1 by sliding the switch button 9 up and down. Opens and closes the terminals of the drive circuit. The circuit board 11 has a rechargeable battery 12 such as a nickel caddy mounted thereon.

On the other hand, as shown in FIGS. 2 and 5, a shaving unit 14 is provided above the outer surface of the rear case 1b, and the unit 14 is switched around a support shaft 15 between a use position and a retracted position. Up and down sliding shaving operation buttons 16 are arranged vertically and provided.

3 and 4, the outer cutter 3 is bent and held and fixed in an arch shape along the inner cutter 2 with its holder 19, and is detachably attached to the upper part of the main body case 1. The outer blade holder 19 has concave portions 2 on the inner surfaces of the left and right walls thereof.
0, and a spring 2
1 is provided on the engaging element 22 which is mounted to be able to come and go
By engaging 0, the mounted state of the outer blade 3 is maintained. Slits 23 are provided on the left and right walls of the outer blade holder 19, and a detach button 24 is attached to the slit 23 so as to be elastically displaceable inward and outward with its upper end 24a as a fulcrum. When the protrusion at the lower end of the button 24 is pressed inward with a finger in the mounted state of the outer blade holder 19 to cause the engaging element 22 to be immersed against the spring 21, the outer blade holder 19
Can be pulled out from the upper part of the main body case 1 upward.

4, 7 and 8, in the upper half of the main body case 1, left and right support frames 25, 25 project upward from slits 27 of an upper wall 26 of the main body case 1 at upper ends thereof. This support frame 25.2 is incorporated
An inner cutter unit 13 having the inner cutter 2 as a main component that slides and rotates on the inner surface of the outer cutter 3 is horizontally supported between upper ends of the outer cutters 5. A drive motor 29 and drive transmission means 30 for reducing the rotation of the drive motor 29 and transmitting the rotation to the inner blade 2 are mounted on the left and right support frames 25. The drive unit 31 is configured by integrally combining the left and right support frames 25, the drive motor 29, and the drive transmission means 30. The drive unit 31 is supported by the main body case 1 with an elastic support member 32 so as to be able to float up and down.

The left and right support frames 25, 25 are each formed into a vertically long plate shape such as polyacetal or a composite plastic filled with a reinforcing material. As shown in FIG. The left and right ends of the bottom surface of the bottom surface 29 are integrally formed with motor holding cylinders 33, 33, which protrude. A pair of front and rear connecting bosses 34 are integrally formed below each motor holding cylinder 33.

As shown in FIG. 8, the elastic support member 32
Has a motor support wall 35 formed of a hard plastic such as polyacetal and formed in a U-shape to support a lower portion of the peripheral surface between the left and right sides of the drive motor 29. Two front and rear parts are horizontally and cantilevered to project outward in the left-right direction. Each of the elastic arms 36 has a small vertical plate thickness and a wide longitudinal plate width so that it can be elastically rocked only in the vertical direction. In addition, each elastic arm 3
6 is configured so that the elastic swing radius can be slightly changed independently by forming a bent portion 36a in the middle of each. The front ends of the front and rear elastic arms 36 are integrally connected by front and rear connecting pins 37 for engaging and fixing to the inner wall of the main body case 1. A coupling boss 39 is integrally formed on the lower side of the motor support wall 35 in the front and rear directions.

In FIG. 4 and FIG. 7, the left and right support frames 25, 25 are mounted on the left and right motor holding cylinders 33, 33 with the left and right side portions of the drive motor 29 in a laterally oriented posture and integrally hugged. The protruding ends of the motor holding cylinders 33 are abutted against the motor support wall 35 of the elastic support member 32 and the coupling bosses 34 and 39 are aligned in a straight line. Thus, as shown in FIG.
By inserting and fastening a fastening member 40 such as a tapping screw or a rivet to the left and right 39, the left and right support frames 25.2.
The five members are integrally connected via a drive motor 29. Note that, as shown in FIGS.
The end face on the side from which the shaft 41 protrudes is one support frame 25.
, With a screw 42 for more firm connection.

4 and 6, a housing portion 43 in which the drive transmission means 30 is provided is recessed on the outer wall surface side of one of the support frames 25, and a shaft 41 of the drive motor 29 is provided below the housing portion 43. To protrude. The drive transmission means 30
An output gear 44 is fixed to an end of a shaft 41 of the drive motor 29, and the gear 44 is meshed with a lowermost gear of a multi-stage gear 45 supported by the housing 43. The housing 43 is closed by a cover 46.

The upper ends of the left and right support frames 25 are integrally connected by a beam member 49 having a bearing 47 at one end as shown in FIGS. The beam member 49 is made of a material having high rigidity such as a die-cast product or brass. Holes 50 are provided at the bottoms of both ends thereof, and the holes 50 are provided at upper ends of the left and right support frames 25. It is inserted into the caulking pin 51 and caulked integrally. Accordingly, the deformation of the support frames 25, 25, such as bending and twisting, can be further prevented, and the parallelism between the support frames 25, 25 can be more reliably maintained.

The drive unit 31 constructed as described above is incorporated between the front and rear cases 1a and 1b of the main body case 1. At this time, as shown in FIG. 3 and FIG. 4, the upper ends of the left and right support frames 25 are respectively connected to the front and rear cases 1a and 1b.
The drive motor 29 projects upward from the left and right slits 27 provided in the upper wall 26, and is incorporated so as to fit in the main body case 1. The gaps between the left and right support frames 25 and each slit 27 are closed in advance by a flexible rubber hair intrusion prevention plate 52 provided at an intermediate portion of each support frame 25. As shown in FIG. 6 and FIG. 7, the front and rear ends of each of the connecting pins 37 of the left and right elastic arms 36 are connected to the front and rear case 1a.
-Engage and fix to the hole 53a of the boss 53 provided on each inner wall of 1b.

In this case, the entire drive unit 31 is supported by the left and right elastic arms 36, 36 so as to be able to float in the vertical direction through elastic deformation. Also, as shown in FIG. 4, the bottom sides of the left and right motor holding cylinders 33, 33 and the main body case 1
A push-up spring 55 is interposed between a spring support 54 provided on the inner side and the entire drive unit 31 is constantly pushed upward by the push-up spring 55 so that the inner cutter 2 is moved to the inner surface of the outer cutter 3. Close contact.

The inner blade 2 is, as shown in FIGS.
A plurality of spiral cutting blades 2 on the peripheral surface of a cylinder type
a, and a horizontal shaft 56 is integrally protruded from the center of each of the left and right end faces. The inner blade 2 is detachably attached to the upper ends of the left and right support frames 25 so that the inner blade 2 can be cleaned or replaced. For this purpose, the inner cutter 2 has a bearing housing 57 that rotatably supports the horizontal shaft 56 at one end side, and a lower side of the inner cutter 2 from the inner surface of the lower end of the bearing housing 57 to the other end side in parallel with the bearing housing 57. The inner blade unit 13 is configured by integrally combining the protruding square frame-shaped coupling frame 59. The horizontal shaft 56 in the bearing housing 57 is provided with passive means 60. As the passive means 60, a gear 61 fixed on a horizontal shaft 56 and a gear 62 meshing with the gear 61 are incorporated into two upper and lower parts, and the lower peripheral surface of the lower lower gear 62 is a multi-stage of the drive transmission means 30. It faces the open bottom of the bearing housing 57 so as to mesh with the uppermost gear of the gear 45 in a detachable manner.

Next, a description will be given of a structure for attaching and detaching the inner blade unit 13 to and from the upper ends of the left and right support frames 25.
4 and 8, a receiving portion 63 for receiving and supporting the bearing housing 57 of the inner blade unit 13 is provided on the upper end side of the right support frame 25. On the upper end side of the left support frame 25, a bearing 47 for supporting the left horizontal shaft 56 of the inner cutter 2 so as to be able to be inserted and removed is integrally formed so as to be higher than the upper end of the right support frame 25. FIG.
As shown in FIG. 4, a coupling hole 64 is formed below the bearing 47 of the left support frame 25 so that the tip 59a of the coupling frame 59 of the inner cutter unit 13 is inserted and supported so as to be able to be inserted and removed. As shown in FIG.
A guide groove 68 is provided on the front and rear inner surfaces of the beam member 49 for integrally connecting the upper end portions of the joint members to each other at a height position of the connection hole 64. The leading end 59a of the connecting frame 59 is inserted into the guide groove 68 from the right end side, and the entire inner blade unit 13 is slid horizontally to the left so that the leading end 59a of the connecting frame 59 is inserted into the connecting hole 64. ing.

Further, the left support frame 25 having the bearing 47 is provided with locking means for locking the leading end 59a of the coupling frame 59 so as not to come out of the coupling hole 64. The locking means mounts an inner blade removal button 65 outside the bearing 47 so as to be slidable up and down. As shown in FIG. 1, a lock claw 66 that engages with and disengages from the inside of the distal end 59 a of the coupling frame 59 is provided on the inner surface of the inner blade removal button 65. The inner blade removal button 65 is constantly urged upward by a spring 67 incorporated outside the upper end of the support frame 25, and holds the engagement state in which the lock claw 66 engages with the distal end 59a of the coupling frame 59 from below. I do. Support frame 25
By attaching and fixing a cover 69 on the outside of the upper end of
The spring 67 does not protrude from the support frame 25.

Here, it should be noted that the coupling frame 59
As soon as the leading end 59a of the inner blade unit 59 releases the engagement with the lock claw 66, the means 70 for pressing and moving the inner blade unit 13 in the axial direction (rightward direction) where the horizontal shaft 56 is pulled out of the bearing 47 is removed from the inner blade unit. The point is that the button 65 is provided. The pressing and moving means 70 is provided with a lock claw 66 of the inner blade removal button 65.
The pressing actuator 71 is integrally formed so as to project upward. A radius 71 a is attached to a lower end of the pressing actuator 71. The distance S1 between the lower end of the pressing actuator 71 and the tip 59a of the coupling frame 59 is set to be larger than the stroke S2 required for the lock claw 66 to be separated from the coupling frame 59.

Now, in order to mount the inner blade unit 13 on the left and right support frames 25, hold the bearing housing 57 in the hand and move the coupling frame 59 from the right end of the beam member 49 to the guide groove 6.
8, the left horizontal shaft 56 is inserted into the bearing 47, and the tip 59 a of the coupling frame 59 is inserted into the coupling hole 64. When the distal end 59a of the coupling frame 59 is inserted into the coupling hole 64, the distal end 59a comes into contact with the taper 66a of the lock claw 66 of the inner blade removal button 65, and the button 65 is once brought into contact with the spring 67 by this contact action. Press down against. When the distal end 59a of the coupling frame 59 passes over the lock claw 66, the inner blade removal button 65 is automatically moved upward by the spring 67, and the lock claw 66 is engaged with the inside of the distal end 59a of the coupling frame 59 and locked. I do.

By mounting the inner cutter unit 13, the bearing housing 57 of the inner cutter unit 13 is aligned with the housing receiving portion 63 of the right support frame 25, and the passive means 6
The state where the zero gear 62 meshes with the uppermost gear of the drive transmission means 30 is obtained (see FIG. 4). This inner blade unit 13
In the mounting state of, the coupling frame 59 is inserted and supported in the coupling hole 64 and is locked in a retaining shape by the lock claw 66 so that the vertical movement, front and rear, and left and right movements of the inner blade unit 13 are restricted. The state is obtained.

To remove the inner blade 2 for cleaning or to replace it with a new one, remove the outer blade 3 together with the holder 19 from the upper part of the main body case 1 and then press the inner blade removal button 65. When pressed down against the spring 67, the lock claw 66 is pulled out from the inside of the tip 59a of the connection frame 59 (FIG. 1B), and when further pressed down, the radius 71a of the pressing actuator 71 is connected. The inner cutter unit 13 is pushed and moved to the right by this contact action ((C) in FIG. 1), and the horizontal shaft 56 starts to come off from the bearing 47 and the bearing housing 57. Comes off from the housing receiving portion 63, and the gear 62 of the passive means 60 comes off from the uppermost gear of the drive transmission means 30. When the user directly confirms the movement of the inner blade unit 13 with the eyes, it can be seen that the lock has been released. In this state, even if the pressing force of the inner blade removal button 65 is released, the lock claw 66 is kept at the tip 59 of the coupling frame 59.
There is no such thing as being locked again after hitting a
Therefore, a light force is sufficient to pull out the inner blade unit 13 rightward while holding the bearing housing 57, and the inner blade 2
The entire inner blade unit 13 can be safely and easily removed from the support frames 25 without injuries to the hands.

As the pressing and moving means 70, instead of forming the pressing actuator 71 integrally with the inner surface of the inner blade removing button 65 as in the above-described embodiment, as shown in FIG. An elastic arm 72 is integrally and downwardly protruded from the inner surface of the button 65, and a pressing actuator 71 is provided at the tip of the elastic arm 72. On the other hand, a protruding wall 73 is provided on the outer surface side of the bearing 47, and the pressing actuator 71 is elastically contacted with the protruding wall 73 when the inner blade removal button 65 is at the lock position. Then, as shown in FIG.
Is pressed down against the spring 67, the locking claw 66 disengages from the tip 59 a of the coupling frame 59, and as soon as the pressing actuator 71 is released.
Is disengaged downward from the protruding wall 73 and presses against the distal end 59a of the coupling frame 59, and the entire inner blade unit 13 is pushed and moved in the direction of pulling out the coupling frame 59 from the coupling hole 64 by this contacting action.

In the above embodiment, the inner blade release button 65 is always pushed up and urged by the spring 67, and when releasing the lock, the inner blade release button 65 is pressed down against the spring 67. As shown in FIG. 11, the inner cutter removal button 65 may be constantly pressed down by a spring 67 so that the inner cutter removal button 65 is pushed up against the spring 67 when releasing the lock. In this case, the lock pawl 66 is projected downward, opposite to that of the above-described embodiment, and the pressing actuator 71 as the pressing moving means 70 is provided so as to be located below the lock pawl 66.

In addition to the pressing and moving means 70,
As shown in FIG. 12A, a concave portion 74 is formed in the outer surface of the housing receiving portion 63 between the outer surface of the housing receiving portion 63 at the upper end of the support frame 25 and the surface of the inner blade unit 13 facing the bearing housing 57. The pressing operator 71 is incorporated into the recess 74 so as to be urged by a spring 75 so that the pressing operator 71 is constantly pressed against the bearing housing 57 of the inner blade unit 13. As soon as the engagement between the lock claw 66 and the coupling frame 59 is released by operating the inner blade release button 65, the inner blade unit 13 is pressed by the pressing force of the pressing actuator 71 as shown in FIG. Is the tip 5 of the joining frame 59
9a is pushed and moved to the right to pull it out of the coupling hole 64.

In the above embodiment, the shaft 41 of the drive motor 29
Although the gear transmission is adopted as the drive transmission means 30 between the shaft 56 of the inner cutter 2 and the shaft 56, for example, a belt transmission may be adopted instead. In this case, a friction wheel that slides on the belt wheel is used as the passive means 60.

[0031]

As described above, according to the present invention, as soon as the lock claw 66 is disengaged from the tip 59a of the coupling frame 59 by the slide operation of the inner blade release button 65, the pressing and moving means 7 is moved.
0 means that the entire inner cutter unit 13 is moved in a direction to pull out the horizontal shaft 56 from the bearing 47 on the main body case 1. Therefore, when the inner blade 2 is removed, the unlocking state of the coupling frame 59 can be confirmed with the sliding operation of the inner blade removing button 65, so that an erroneous operation of forcibly pulling out the inner blade unit 13 in the locked state can be prevented, The inner blade unit 13 can be safely and easily removed thereafter, and the inner blade unit 13 can be easily cleaned or replaced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing an operation of removing an inner blade.

FIG. 2 is a perspective view of the entire appearance as viewed from the rear side.

FIG. 3 is an external perspective view of the entirety viewed from the front side with an outer blade removed.

FIG. 4 is a vertical sectional front view of a cutting head unit.

FIG. 5 is an overall vertical side view.

FIG. 6 is a vertical sectional side view of a cutting head unit.

FIG. 7 is an exploded perspective view of the whole.

FIG. 8 is an exploded perspective view of the inner blade unit and the drive unit.

FIG. 9 is a cross-sectional view of the bottom surface side of the drive unit.

FIG. 10 is a sectional view of a pressing and moving means showing another embodiment.

FIG. 11 is a cross-sectional view of a pressing and moving means showing still another embodiment.

FIG. 12 is a cross-sectional view of a pressing and moving means showing still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 2 Inner blade 3 Outer blade 13 Inner blade unit 25 Support frame 29 Drive motor 30 Drive transmission means 47 Bearing 56 Horizontal shaft 57 Bearing housing 59 Coupling frame 60 Passive means 63 Receiving part 64 Coupling hole 65 Inner blade removal button 66 Lock Claw 70 Pressing and moving means 71 Pressing actuator

Claims (2)

(57) [Claims] 1. An inner blade unit 13 is detachably provided on an upper portion of a main body case 1. The inner blade unit 13 is a cylinder type and has an inner blade 2 having a horizontal axis 56 at both left and right ends, and a lateral end at one end thereof. A bearing housing 57 that cantileverly supports the shaft 56, a passive means 60 provided on the horizontal shaft 56 in the bearing housing 57, and a projection from the bearing housing 57 toward the other end of the inner blade 2 below the inner blade. The main body case 1 has a pair of left and right support frames 25, 25 projecting from the upper part of the main body case 1 so as to face each other, and has a drive motor 29 built therein. A receiving portion 63 for receiving and supporting the lower end of the bearing housing 57 is provided at the upper end of the support frame 25, and the rotational force of the drive motor 29 is transmitted to the passive frame 60 by the support frame 25. A bearing 47 for rotatably supporting the horizontal shaft 56 at the other end of the inner cutter 2 at the upper end of the other support frame 25 so that it can be inserted and removed.
And the coupling frame 5 is provided below the bearing 47.
9 is provided with a coupling hole 64 into which the tip can be freely inserted and removed. An inner blade removing button 65 slidable up and down is mounted on the outer side of the bearing 47 on the support frame 25, and the inner surface side of the inner blade removing button 65. In a rotary electric shaver having a lock claw 66 which is engaged with and disengaged from the tip of the coupling frame 59 inserted into the coupling hole 64 with the vertical sliding thereof, the distance between the inner blade unit 13 and the support frame 25 is increased. And the binding frame 5
A rotary electric shaver comprising: means (70) for pressing and moving the inner cutter unit (13) in the axial direction in which the horizontal shaft (56) comes out of the bearing (47) as soon as the engagement between the lock pawl (9) and the lock pawl (66) is released. 2. The pressing and moving means 70 includes an inner blade release button 6
5 is provided above or below the lock claw 66, and the engagement of the lock claw 66 with the coupling frame 59 is released with the sliding operation of the inner blade removal button 65 in the lock release direction. 2. The rotary electric shaver according to claim 1, wherein the pressing operation member 71 presses and abuts on the distal end of the coupling frame 59 by the sliding operation, and the coupling frame 59 is pushed out from the coupling hole 64 by this abutting action. .