JP2811586B2 - Rotary electric razor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement in a rotary electric shaver, in which the means for attaching and detaching a rotary inner blade is improved.

[Conventional technology]

In order to make this type of rotary inner blade replacement and cleaning possible, as a rotary electric shaver that makes the rotary inner blade detachable, for example, Japanese Utility Model Publication No. 48-42304 and Japanese Patent Application Laid-Open No. 56-104689 There is something like that shown in

In the former, the rotating shaft is supported horizontally on the body case,
A final stage gear of a multi-stage gear for transmitting the rotation of the motor is fixed to one end of the rotating shaft, and a rotary inner blade is fitted to the other end of the coaxial shaft so as to be freely inserted and removed.

In the latter case, the rotary inner blade is supported not by one common shaft but by left and right separate shafts in the inner blade housing recess of the main body case, but one of the left and right shafts rotates the motor. The drive shaft is rotated via a multi-stage gear, while the other shaft is a driven shaft movable in the axial direction. Then, the rotary inner blade is dropped into the inner blade receiving recess of the main body case and can be freely inserted and removed with respect to these two shafts.By operating the driven shaft outward in the axial direction, the rotary inner blade is moved from both shafts. It can be removed.

[Problems to be solved by the invention]

In any of the above-mentioned conventional examples, the rotary inner blade can be freely inserted into and removed from a shaft that supports the rotary inner blade. Can cause fingertips to be cut by the cutting blade, which is very dangerous especially with sharp cutting edges. There are some difficulties in handling such as causing.

Further, in the latter conventional example, since the mounting form of the rotary inner blade is such that the rotor inner blade is dropped into the inner blade accommodating recess of the main body case from above and inserted into both the left and right shafts, The number of mounting steps is a little troublesome. In that regard, in the former conventional example, the rotary inner blade is inserted and mounted to the shaft from this axial direction, so the mounting operation is easy, but since the rotary inner blade is cantilevered, , There is a risk that the rotation will run out.

The present invention has been made in order to solve such problems, and has a rotary inner blade having a rotary inner blade that slides and rotates on the inner surface of an outer blade detachably mounted on the upper side of a main body case as described above. It is an object of the present invention to improve the safety and simplicity of the operation of attaching and detaching the rotary inner blade and to stabilize the rotation of the rotary inner blade by elaborating the means for attaching and detaching the rotary inner blade in the electric razor.

[Means for solving the problem]

In the rotary electric shaver of the present invention, for example, as shown in FIG. 1, the rotary inner blade 13 can be attached to and detached from each of the inner blade holders 33 supporting the same. For this purpose, the inner cutter unit 14 is configured by integrally combining the rotary inner cutter 13, a shaft 31 protruding from both left and right end surfaces of the rotary inner cutter 13, and an inner cutter holder 33 holding the rotary inner cutter 13. .

The inner cutter holder 33 includes a housing 34 that supports the shaft 31 at one end of the rotary inner cutter 13, and a shaft 31 at the other end from below the housing 34.
And a connecting frame 36 extending in the direction of.

The inner blade unit 14 is detachably attached to a pair of left and right support frames 10 that protrude from the upper wall 11 of the main body case 1 in opposite directions. To this end, an inner blade holder receiving portion 39 for receiving and supporting the lower end of the housing 34 is provided at the upper end protruding from the upper wall 11 of one of the support frames 10, and the motor 15 in the main body case 1 is provided on the support frame 10. A drive transmitting means 16 for transmitting the driving force to the passive means 37 on the shaft 31 at one end of the rotary inner blade 13 is provided.

At the upper end of the other support frame 10, there is provided a housing 41 that accommodates a bearing 40 that supports the shaft 31 at the other end of the rotary inner blade 13 so as to be able to be inserted and removed and rotatably supported, and the connection frame is provided below the housing 41. A connection hole 42 is provided in which the tip 36a of the 36 is inserted / removed. Further, the support frame 10 includes
A lock means 43 is provided which is detachably engaged with the distal end 36a so that the distal end 36a of the connecting frame 36 does not come out of the connecting hole 42 when the inner blade unit 14 is mounted.

It is preferable that a guide frame 49 for guiding and sliding the distal end 36a of the connection frame 36 of the inner blade unit 14 into the connection hole 42 is horizontally provided between the support frames 10 and 10.

[Action]

At this time, when the outer cutter 6 is removed and the lock of the connecting frame 36 by the locking means 43 is released, the tip 36a of the connecting frame 36 can be pulled out from the connecting hole 42 and the shaft 31 at one end of the rotary inner cutter 13 can be removed. It can be extracted from the bearing 40 on the support frame 10 side, and the entire inner blade unit 14, that is, the inner blade holder
All of 33, the passive means 37, and the rotary inner blade 13 can be removed from the main body case 1. Therefore, the inner blade unit 14 is cleaned or replaced with a new inner blade unit 14.

Inner blade unit 14 after cleaning or new inner blade unit
In order to attach 14 to the main body case 1, the shaft 31 at one end of the inner cutter unit 14 is inserted into the bearing 40 of one support frame 10, and the tip 36 of the connection frame 36 is inserted into the connection hole 42 of the frame 10.
a, the lower end of the housing 34 is received and supported on the inner blade holder receiving portion 39 at the upper end of the other support frame 10, the passive means 37 is brought into communicative contact with the drive transmission means 16, and the connecting frame 36 is Are engaged in a retaining shape. Then, the inner blade unit 14 is mounted so that the rotary inner blade 13 is rotatably and stably mounted on the left and right support frames 10 and 10 and is in a drivable state in which it receives rotational force from the drive transmitting means 16 via the passive means 37. Can be In this case, the inner blade unit
Guide frame with 14 connecting frames 36 between support frames 10
By sliding on the top 49, the tip 36a can be easily inserted into the connection hole 42, and the shaft 31 can be easily inserted into the bearing 40.

〔The invention's effect〕

The rotary electric razor of the present invention is provided with an inner blade holder 33.
The inner cutter unit 14 is constructed by integrally assembling the rotary inner cutter 13, the left and right shafts 31, and the passive means 37, and the shaft 31 at one end of the inner cutter unit 14 with respect to the main body case 1 is supported by the support frame.
It can be inserted and removed from the ten bearings 40, and can be locked and unlocked by the locking means 43. Therefore, the inner blade holder 33 can be grasped by hand when attaching and detaching the same, so that the inner blade holder 33 can be safely attached and detached without touching the blade edge of the rotary inner blade 13, and the sweat on the blade edge can be reduced. Excellent workability of cleaning and replacement, such as prevention of fat adhesion.

Further, the inner blade unit 14 supports the housing 34 on the inner blade holder receiving portion 39 at the upper end of one of the support frames 10, and the tip of a connection frame 36 extended from the housing 34.
36a is inserted into the connection hole 42 of the other support frame 10, and is locked in a locking manner by the locking means 43. Therefore, the inner blade unit 14 can be easily mounted on the support frames 10 and 10 by axially mounting the inner blade unit 14 from one support frame 10 having the drive transmission means 16 to the other support frame 10. it can. In particular, when the connection frame 36 of the inner blade unit 14 is slid on the guide frame 49 extending between the support frames 10 and 10 and the tip 36a is inserted into the connection hole 42, the mounting is easier. I can do it. Further, the inner blade unit 14 can be easily removed from the main body case 1 by a one-touch operation of simply releasing the lock of the connecting frame 36 by the locking means 43 on one side.

Further, the rotary inner blade 13 can stably and reliably support both the left and right shafts 31 on the support frames 10, and can obtain a stable and favorable rotation state without any runout or rattling.

〔Example〕

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

2 and 3, a fixed socket in which a circuit board 2 and a rechargeable battery 3 are incorporated in a lower half portion of the main body case 1 and power can be supplied to the bottom of the case via a power cord. 4 and a movable plug 5 for charging which can be inserted into a wall outlet or the like are selectively used.

A mesh-shaped outer blade 6 is mounted on the upper part of the main body case 1 so as to be curved in an arch shape via a holder 7. The left and right walls of the holder 7 of the outer cutter 6 are supported by engagement with knob engaging claws 9 which are attached to the upper ends of the main body case 1 on the left and right sides via springs 8 so as to be freely retractable. Therefore, when the locking claws 9 with the left and right knobs are pushed in against the spring 8, the holder 7 can be removed together with the outer blade 6 from the main body case 1.

The left and right support frames 10
10 are assembled so that each upper end projects upward from the slit 12 of the upper wall 11 of the main body case 1.
An inner cutter unit 14 having a rotary inner cutter 13 that rotates in sliding contact with the inner surface of the outer cutter 6 is horizontally supported between upper ends of the 10,
The frame 10 in the main body case 1 is equipped with a motor 15 and a gear transmission type drive transmission means 16 for transmitting the rotation of the motor 15 to the inner blade unit 14.

The left and right support frames 10 are assembled together in a U-shape when viewed from the front by integrally connecting their bottoms with a frame bottom plate 17.
A cylindrical motor holder 18 is superimposed on the bottom side of the frame bottom plate 17 and integrally joined with screws 19. The motor 15 is fitted into and supported by the motor holder 18 in a vertical orientation.
With respect to the drive transmission means 16, an output gear 21 is fixed to an output shaft 20 protruding above the motor holder 18 and the frame bottom plate 17 from the upper end of the motor 15, and a driving shaft is provided between the support frames 10 above the frame bottom plate 17. 22 is rotatably supported, a gear 23 fixed at the axial center of the driving shaft 22 is meshed with the output gear 21 at right angles, and a gear 24 fixed to the right end of the driving shaft 22 is supported on the right side. Multi-stage gear housed in frame 10
25 meshed.

The left and right support frames 10 are provided with a pair of left and right elastically deformable arms 26 and 26 horizontally and integrally projecting from the motor holder 18 in the horizontal direction. By being fixedly engaged with the supporting member, it is supported movably up and down. Then, a spring 30 is interposed between a bottom case 28 fitted to the bottom side of the motor 15 and a spring receiver 29 protruding from the inner wall of the lower body case, and the left and right support frames 10 are The rotary inner cutter 13 is always in close contact with the inner surface of the outer cutter 6 by constantly pushing upward on the outer cutter side.

2 and 5, the left and right support frames 10
The inner blade unit 14 which is detachably mounted on the upper end side of the rotary shaft, a rotary inner blade 13 of a cylinder type, a shaft 31 protruding from both left and right ends of the rotary inner blade 13, and a shaft 31 on the right end side via a bearing 32. And an inner blade holder 33 that is rotatably supported. The inner blade holder 33 has an open bottom housing 34 for accommodating the bearing 32, a cover 35 for closing the right side of the housing 34, and a connecting frame 36 protruding horizontally from the lower part of the housing 34 to the left. The shaft 31 in the housing 34 is provided with a passive means 37. The shaft 31 as the passive means 37
The upper and lower gears 38a and the gear 38b meshing with the gear 38a are incorporated into the upper and lower gears 38b, and the lower peripheral surface of the lower gear 38b is engaged with the multi-stage gear 25 of the drive transmission means 16 so as to be removably engaged with the housing. It faces the open bottom of 34.

Next, a structure for attaching and detaching the inner blade unit 14 to and from the upper end of the support frame 10 will be described. Right support frame 10
An inner blade holder receiving portion 39 for receiving and supporting the housing 34 of the inner blade unit 14 is provided on the upper end side. On the upper end side of the left support frame 10, a housing 41 that accommodates a bearing 40 that supports the left shaft 31 of the rotary inner blade 13 so that it can be inserted and removed is integrally formed so as to be higher than the upper end of the right support frame 10. Is done. As shown in FIG. 6, a connection hole 42 is formed in the lower part of the housing 41 of the left support frame 10 so that the tip 36a of the connection frame 36 of the inner blade holder 33 is inserted and supported so that it can be inserted and removed.

1 and 6, the supporting frame
The locking means 43 is provided on the locking device 43 for locking the distal end 36a of the connecting frame 36 so as not to come out of the connecting hole 42. The locking means 43 is provided at the lower part of the connection hole 42 of the support frame 10 outside the opening 44 formed in communication with the connection hole 42, and an inner blade removal button.
46 is mounted slidably up and down. The inner blade removal button
On the inner surface of 46, a lock claw 45 that is detachably engageable with the inside of the distal end 36a of the connection frame 36 is provided. Inner blade removal button 46 is open
It is always urged upward by a spring 47 incorporated in 44, and maintains the engagement state in which the lock claw 45 engages the distal end 36a of the connection frame 36 from below. Opening 44 of support frame 10
A cover 48 is attached and fixed to the inner surface side of the cover so as to face the inner blade removal button 46, so that the spring 47 does not protrude into the support frame 10 from the opening 44.

As shown in FIG. 5, a guide frame 49 is integrally extended horizontally between the upper end portions of the left and right support frames 10,
Front and rear parallel ribs 49b are provided before and after the inner surface of the guide frame 49, and a guide groove is provided between the ribs 49b.
50 is provided in accordance with the height position of the connection hole. The distal end 36a of the connection frame 36 is inserted into the guide groove 50 from the right end side, and the entire inner blade unit 14 is slid horizontally to the left so that the distal end 36a of the connection frame 36 is inserted into the connection hole 42. ing.

Thus, when assembling the inner blade unit 14 on the left and right support frames 10, the inner blade unit 14 slides the connection frame 36 in the guide groove 50 from the right support frame 10 to the left support frame 10, The left shaft 31 is inserted into the bearing 40, and the distal end 36a of the connection frame 36 is inserted into the connection hole 42. When the tip 36a of the connection frame 36 is inserted into the connection hole 42, the tip 36a comes into contact with the taper 45a of the lock claw 45 of the inner blade removal button 46, and the button 46 is once pressed down against the spring 47, and When 36a passes over the lock claw 45, the button 46 is automatically moved upward by the spring 47 to move the lock claw 45 to the tip 36a of the connection frame 36.
And lock it. In addition, a state is obtained in which the housing 34 of the inner cutter unit 14 is aligned with the inner cutter holder receiving portion 39 of the right support frame 10, and the gear 38b of the passive means 37 meshes with the gear 25 of the drive transmission means 16. In the mounted state of the inner blade unit 14, the connecting frame 36 is inserted and supported in the connecting hole 42, and is locked in a locking manner by the locking means 43, so that the upper and lower, front and rear,
A state in which left and right movements are restricted is obtained. At this time, in order to more reliably prevent the inner blade unit 14 from lifting the housing 34 from the inner blade holder receiving portion 39, as shown in FIG. The front and rear concave portions 59 provided in the lower constricted portion of the housing 34 may be fitted to the convex portion 49a which is the right end of the guide frame 49. Alternatively, on the contrary, the convex portion 49a may be provided on the housing 34 side, and the concave portion 59 fitted with the convex portion 49a may be provided on the support frame 10 side.

At the time of this mounting, since the inner blade unit 14 is integrally provided with the inner blade holder 33, the inner blade holder 33, in particular, the housing 34 can be held by a finger, and the rotary inner blade 13
It can be safely mounted without directly touching the cutting blade. Further, the connection frame 36 can be easily mounted by sliding the guide frame 49 on the guide frame 49.

Note that the rotary inner blade 13 may be cleaned even when it is mounted on the support frame 10. In this case, a rotary knob 58 is inserted into the end of the rotary inner blade 13 protruding from the bearing 40 of the shaft 31 at the left end, and the rotary knob 58 is gripped with a finger to clean the rotary inner blade 13 with a brush while rotating manually. Then, when the finger is turned directly by touching the rotary inner blade 13, the entire circumference can be safely cleaned without danger such as injury of the finger.

When removing the rotary inner blade 13 for cleaning or replacing it with a new one, the outer blade 6 is attached to the holder 7.
When the inner blade release button 46 is pulled down against the spring 47 after being removed from the upper part of the main body case 1
45 is pulled out downward from the inside of the tip 36a of the connection frame 36,
By sliding the entire inner blade unit 14 rightward, the inner blade unit 14 can be removed from the support frames 10. Even at the time of this removal, there is no danger of cutting the hand with the cutting blade of the rotary inner blade 13, and the inner blade holder 33 can be securely mounted by grasping it with a finger. The lock means 43 cannot be operated unless the outer blade 6 is removed, so that the inner blade unit 14 does not come off or rattle inadvertently.

In FIG. 3, on the front side of the main body case 1, a shave blade unit 51 that can swing out and reciprocate, and a switch operation knob 52 that can slide up and down are mounted vertically. The switch is opened and closed by sliding the switch operation knob 52 up and down. Now, when the switch is turned on by the slide operation of the switch operation knob 52, the motor 15 rotates, and this rotation is transmitted to the rotary inner blade 13 via the drive transmission means 16 and the passive means 37, and the rotary inner blade 13 It rotates in sliding contact with the inner surface of the outer cutter 6 around 31. Shaved blade unit 51
The eccentric cam 53 is fixed below the output gear 21 of the output shaft 20, and the eccentric cam 53 and the shaving blade unit 51 are used to convert the rotation of the eccentric cam 53 to the reciprocating motion of the shaving movable blade. The transmission connection is performed by the shaving blade drive transmission means 54.
In addition, as shown in FIG.
A safety switch 57 is disposed below the bottom case 28 of the motor 15. That is, in a normal state in which the outer cutter 6 is mounted, the rotary inner cutter 13 is slightly pushed down together with the support frame 10 under the pressing force of the outer cutter 6, and the lower case of the motor 15 at the lower end of the frame 10 Although the power supply circuit is closed by being pushed by 28, when the outer blade 6 is removed, the support frame 10 is moved upward by the spring 30, and the pressing by the bottom case 28 is released, so that the power supply circuit is opened. I have. Therefore, when the outer cutter 6 is detached, the rotary inner cutter 13 is not inadvertently rotated.

In FIG. 3, a recess 55 is formed on the rear surface side of the upper part of the main body case 1. The recess 55 is located on the upper wall 11 of the main body case 1.
It is formed between the upper and lower support frames 10 and 10 and the outer blade holder 7. And the hair tray 56 has an upper wall in this recess 55
The upper surface of 11 is slidable and can be inserted and removed freely. In the hair receiving tray 56, shavings falling from the rotary inner blade 13 are stored through the inside of the guide frame 49 and the inside of the connection frame 36.

2, 7 to 10, the structure of the fixed socket 4 and the movable plug 5 will be described. At the bottom of the main body case 1, a plug outlet is provided on one side
An operation groove 61 is formed on the bottom of the operation groove 61. The plug outlet 60 is provided on one side of the body case 1.
Is openable and closable by a plug cover 62 slidably mounted above and below. Plug outlet of the main body case 1
The corner having the side 60 has a curved cross section which is rounded in the vertical and longitudinal directions, and the lower end of the plug cover 62 has a rounded shape corresponding to the shape of the corner of the main body case 1. Has formed. Therefore, even if the body case 1 is squeezed strongly, the palm will not be damaged at the corner.

The movable plug 5 incorporated inside the bottom of the main body case 1 has a pair of front and rear plug blades 63 and a blade base 64 integrally connected to a base end thereof. The movable plug 5 has a plug blade 63
The front and rear side surfaces of the blade base 64 are inserted into the pair of front and rear connecting frames 66 respectively extending from the plug blade outlet port 65 while the plug blade outlet port 65 is inserted into the distal end side of the plug base. And a pin 68 protruding therefrom is engaged. Thus, body case 1
The movable plug 5 is incorporated into the movable plug 5 such that the plug blade 63 faces the front end of the plug 60 toward the plug outlet 60 and the plug blade 63 and the connection frame 66 straddle the front and rear sides of the fixed socket 4. An operation knob 69 is attached to the bottom side of the blade base 64. The operation knob 69
The groove 61 is slidable in the left-right direction, and can be freely disengaged from the concave portions 70, 71 provided at the left and right end positions of the groove 61, respectively.

As shown in FIGS. 7 and 8, when the operation knob 69 is engaged with the concave portion 71 at the right end of the operation groove 61, the movable plug 5 moves the plug blade 63 and the plug blade exit / return body 65. It is in a state of being retracted and stored inside the plug outlet 60. Now, when the plug cover 62 is slid upward to open the plug outlet 60, the operating knob 69 is disengaged from the right end recess 71 and then slid leftward along the operating groove 61. In FIG. 7, the plug blade 63 protrudes from the plug blade outlet port 65 and the plug outlet port 60 until the pin 68 reaches the left end of the groove 67 as shown by the two-dot chain line. Then, move the operation knob 69 to the operation groove 61
When it is slid to the left until it engages with the concave portion 70 at the left end of the plug blade, the plug blade outlet port 65 is pushed together with the plug blade 63 in that direction via the engagement between the pin 68 and the connection frame 66. By being moved, the plug blade 63 projects from the plug outlet 60 by a predetermined amount as shown in FIGS. 9 and 10, and the plug blade outlet 65 also projects from the plug outlet 60. When the plug blade outlet body 65 is in the protruding state, its flat tip surface 65
“a” is set so as to be linear with a straight line portion S that continues above the rounded portion R at the corner of the curved section of the main body case 1. Therefore, even when the plug blade 63 is projected from the plug outlet 60 at the corner of the curved cross section during charging, the tip surface 65a of the plug blade outlet 65 is connected to the outlet C such as a wall (two points in FIG. 9). (See dashed line), and a stable and reliable charging posture can be achieved. When charging using the movable plug 5, the fixed socket 4 is closed by a socket cover 72 integrally formed on the bottom side of the blade base 64. Further, in order to retreat the movable plug 5 into the plug outlet 60, the operation knob 69 is slid within the groove 61 until the operation knob 69 is engaged with the recess 71 at the right end of the operation groove 61. Good.

(Another embodiment)

In the above-described embodiment, the gear transmission is adopted as the drive transmission means 16. However, for example, a belt transmission may be used instead. In this case, a friction wheel that slides on the belt wheel is used as the passive means 37.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of a rotary electric shaver according to the present invention. FIG. 1 is a front view of a main part, FIG. 2 is a vertical sectional front view, and FIG. FIG. 4, FIG. 4 is an enlarged cross-sectional view taken along the line IV-IV in FIG. 1, FIG. 5 is a perspective view of a main part with the inner blade unit removed, and FIG. FIG. 7 is a vertical sectional front view of the bottom of the main body case, FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 7, and FIG. 9 is a state in which the movable plug is projected. FIG. 10 is a sectional view corresponding to FIG. 7, and FIG. 10 is a sectional view taken along line XX in FIG. 1 ... body case, 6 ... outer blade, 10 ... support frame, 11 ... upper wall of body case, 13 ... rotary inner blade, 14 ... inner blade unit, 15 ... motor, 16 ... drive Transmission means 31 Shaft 33 Inner blade holder 34 Inner holder housing 36 Connection frame 37 Passive means 39 Inner holder holder 40 40 Bearing 41 ... Support frame housing, 42 ... Connection hole, 43 ... Lock means.

Claims (2)

(57) [Claims] An arch-shaped outer blade (6) is detachably mounted on an upper side of a main body case (1) via a holder (7).
The rotary inner blade (13) separated from the holder (7) is disposed between the outer blade (6) and the main body case (1) such that the rotary inner blade (13) rotates in sliding contact with the inner surface of the outer blade (6). In a rotary electric shaver, a rotary inner blade (13), a shaft (31) protruding from both left and right end surfaces of the rotary inner blade (13), and an inner blade holder (33) holding the rotary inner blade (13) are provided. Are integrally combined to form an inner blade unit (14), and the inner blade holder (33) has a shaft (3) at one end of the rotary inner blade (13).
The housing (34) supporting the 1) and the housing (3
And a connecting frame (36) extending horizontally from the lower part of (4) in the direction of the shaft (31) at the other end, and a shaft (31) in the housing (34) of the inner blade unit (14). Is equipped with passive means (37), and a pair of right and left support frames (10/1
0), and the upper end of each support frame (10) is projected upward from the upper wall (11) of the main body case (1). A guide frame (49) extends horizontally across the upper end protruding from the upper wall (11), and the housing frame is mounted on the upper end protruding from the upper wall (11) of one of the support frames (10). An inner blade holder receiving portion (39) for receiving and supporting the lower end of (34) is provided, and the driving force of the motor (15) in the main body case (1) is applied to the supporting frame (10) by the passive means (37). And a drive transmission means (16) for transmitting power to the other support frame (10).
A housing (41) containing a bearing (40) for rotatably supporting the shaft (31) at the other end of the shaft (31), wherein the inner blade unit (14) is provided with a rotary inner blade (13); ) Is inserted into the bearing (40) of the housing (41), the passive means (37) is in transmission contact with the drive transmission means (16), and the connection frame (36) is The left and right support frames (10, 10) are detachably mounted between the upper ends of the left and right support frames (10, 10) while being mounted horizontally slidably on the guide frame (49). The lock means (43) for preventing the shaft (31) at the other end of the rotary inner cutter (13) from coming out of the bearing (40) of the housing (41) when the inner cutter unit (14) is mounted. A rotary electric razor, comprising: 2. An end (36) of the connection frame (36) is mounted on a lower portion of the housing (41) with the inner blade unit (14) mounted.
a) is provided with a connecting hole (42) which can be inserted and removed freely, and the locking means (43) is provided at the tip (36a) of the connecting frame (36).
2. A rotary electric shaver according to claim 1, wherein said shaft is detachably engaged with said tip end so as not to fall out of said connection hole.