JPH03140184A - Rotary type electric razor - Google Patents

Abstract

PURPOSE:To secure the stabilization of a rotation of a rotary inner edge by providing a lock means engaged so as to be freely engageable and detachable to and from the tip so that the tip of a connecting frame does not fall out of a connecting hole in a state that an inner edge unit is installed, on a supporting frame. CONSTITUTION:An inner edge unit 14 is constituted by assembling integrally a rotary inner edge 13, both left and right shafts 31, and a passive means 37 to an inner edge holder 33, and as for a body case 1, the shaft 31 of one end of its inner edge unit 14 is drawn out and inserted from and into a bearing 40 of a supporting frame, and locked and unlocked by a lock means 43. In the inner edge unit 14, a housing 34 is supported on an inner edge holder receiving part 39 of the upper end of one supporting frame 10, and the tip 36a of a connecting frame 36 extended and provided from the housing 34 is inserted into a connecting hole 42 of the other supporting frame 10 and locked so as to stop falling out by the lock means 43. The inner edge unit 14 is installed in the axial direction extending from one supporting frame provided with a driving transfer means 16 to the other supporting frame 10 and is installed simply on the supporting frames 10, 10.

Description

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

[Conventional technology]

In order to make it possible to replace and clean this type of rotary inner blade, rotary electric shavers with detachable rotary inner blades are proposed, for example, in Japanese Utility Model Publication No. 4, 8-42304 and Japanese Patent Laid-Open No. 56-1 There is one as shown in Japanese Patent No. 04689.

In the former, a rotating shaft is supported horizontally on the main body case, the final stage gear of a multi-stage gear that transmits the rotation of the motor is fixed to one end of the rotating shaft, and the rotary inner cutter can be freely inserted and removed from the other part of the same shaft. It is designed to fit.

In the latter case, the rotary inner blade is supported in the inner blade housing recess of the main body case not by one common shaft but by two separate left and right shafts, but one of the left or right shafts does not control the rotation of the motor. This is a drive shaft that is rotated by being received by a multi-stage gear, while the other shaft is a driven shaft that is movable in the axial direction. Then, the rotary inner cutter is dropped into the inner cutter storage recess of the main body case and can be inserted into and removed from both wheels, and by moving the driven shaft outward in the axial direction, the rotary inner cutter is removed from both shafts. It is now possible to do so.

[Problem to be solved by the invention]

In all of the above-mentioned conventional examples, the rotary inner cutter is said to be able to be inserted and removed from the shaft that supports it, but when inserting and removing it, the rotary inner cutter must be grasped with the fingertips.
At this time, you have no choice but to grasp the cutting edge on the circumference, so there is a risk of cutting your fingertips with the cutting edge, which is particularly dangerous if the cutting edge is sharp. It is a little difficult to handle as sweat and oil can cause rust.

In addition, in the latter conventional example mentioned above, the rotary inner blade is installed by dropping it into the inner blade accommodation recess of the main body case from above and inserting it into both the left and right wheels. It's a bit complicated. On this point, in the former conventional example, the rotary inner cutter is inserted into the shaft from the axial direction, so the mounting operation is easy, but the a-cutter inner cutter is supported in a cantilever manner. Therefore, there is a risk that rotational runout may occur.

The present invention has been made to solve these problems, and is a rotary type equipped with a rotary inner cutter that rotates in sliding contact with the inner surface of an outer cutter that is detachably attached to the upper side of the main body case. The purpose of this invention is to improve the safety and ease of attaching and detaching the rotary inner cutter and to ensure stable rotation of the rotary inner cutter by devising a means for attaching and detaching the rotary inner cutter in an electric shaver.

[Failure to solve the problem]

In the rotary electric shaver of the present invention, as shown in FIG. 1, for example, the rotary inner cutter 13 can be attached and detached together with the inner cutter holder 33 that supports it. For this purpose, the inner cutter unit 14 is constructed 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 that holds the rotary inner cutter 13. .

The inner cutter holder 33 has a housing 34 that supports the shaft 31 at one end of the rotary inner cutter 13, and a connecting frame 36 extending from below the housing 34 toward the shaft 31 at the other end. Passive means 3 is attached to the shaft 31 in 34.
Equipped with 7.

This inner blade unit/to 14 is connected to the upper wall 11 of the main body case 1.
A pair of left and right support frames 10 protrude oppositely from each other.
Detachably attached to. For this purpose, an inner blade holder receiving part 39 that receives and supports the lower end of the housing 34 is provided at the upper end protruding from the upper wall II of one of the support frames 10.
is provided, and the main body case 1 is attached to the support frame 10.
Drive transmission means 1 for transmitting the driving force of the inner motor 15 to the passive means 37 on the shaft 31 at one end of the rotary inner cutter 13
6.

A rotary inner cutter 13 is provided at the upper end of the other support frame 10.
A housing 41 is provided that accommodates a bearing 40 that rotatably supports the shaft 31 at the other end, and the tip 36 of the connecting frame 36 is provided at the bottom of the housing 41.
A connecting hole 42 is provided in which the wire a is inserted and removed. Further, the support frame 10 is provided with a locking means 43 that removably engages with the tip 36a of the connecting frame 36 so that the tip 36a of the connecting frame 36 does not slip out of the connecting hole 42 when the inner cutter unit 14 is attached. It is.

Between the support frames 10 and 10, there is an inner cutter unit [4].
It is preferable that a guide frame 49 for guiding and sliding the tip end 36a of the connecting frame 36 into the connecting hole 42 is provided horizontally.

[Effect]

In such a case, when the outer cutter 6 is removed and the lock of the connecting frame 36 by the locking means 43 is released, the tip 36 of the connecting frame 36 is removed.
a can be extracted from the connecting hole 42, and the shaft 31 at one end of the rotary inner cutter 13 can be extracted from the bearing 40 of the support frame 10, and the entire inner cutter unit 14, that is, the inner cutter holder 33, the passive means 37 , and the rotary inner cutter 13 can all be removed from the main body case (2). Therefore, the inner cutter unit 14 can be cleaned or replaced with a new inner cutter unit 14.

To attach the cleaned inner cutter unit 14 or the new inner cutter unit 14 to the main body case l, attach the shaft 3 at one end of the inner cutter unit 14 to the bearing 40 of one support frame 10.
At the same time, the tip 36a of the connecting frame 36 is inserted into the connecting hole 42 of the frame 10, and the lower end of the housing 34 is received and supported on the inner blade holder receiving part 39 at the upper end of the other support frame 10, thereby forming a passive means. 37 is brought into transmission contact with the drive transmission means 16, and the locking means 43 connects the connecting frame 3.
6 is engaged in a locking manner. Then, inner blade unit 1
4, the rotary inner cutter 13 is mounted on the left and right support frames 10 and 1.
0 and is rotatably and stably mounted on the passive means 37.
It is mounted in a drivable state to receive rotational force from the drive transmission means 16 via the drive transmission means 16. In this case, by sliding the connecting frame 36 of the inner cutter unit 14 onto the guide frame 49 passed between the support frames 10, the leading end 36a can be easily inserted into the connecting hole 42, and the shaft 31 can be easily inserted. Bearing 4
It can be easily inserted into 0.

[Effects of the Invention] In the rotary electric shaver of the present invention, the rotary inner cutter 13, the left and right shafts 31, and the passive means 37 are integrally assembled to the inner cutter holder 33 to form the inner cutter unit 14, and the inner cutter unit 14 is assembled with the inner cutter holder 33. 1, the shaft 31 at one end of the inner cutter unit 14 can be inserted into and removed from the bearing 40 of the support frame 10, and can be locked and unlocked by a locking means 43. Therefore, when attaching and detaching the inner cutter holder 33, the inner cutter holder 33 can be grasped by hand, so it is possible to safely attach and detach the rotary inner cutter 13 without touching its cutting edge. It has excellent workability when cleaning and replacing oil, such as preventing the adhesion of grease.

In addition, the inner cutter unit 14 supports the housing 34 on the inner cutter holder receiving portion 39 at the upper end of one support frame 10, and connects the tip 36a of the connecting frame 36 extending from the housing 34 to the other support frame 10. connection hole 4
2, and is locked by a locking means 43 to prevent it from coming off.

Therefore, this inner cutter unit 14 is connected to the drive transmission means 16.
By mounting in the axial direction from one support frame 10 equipped with the support frame 10 to the other support frame 10, it can be easily mounted on the support frames 10. In particular, the connecting frame 36 of the inner cutter unit 14 is connected to the support frame 0.
Slide it onto the guide frame 49 passed between 10 and the tip 3.
If the connecting hole 6a is inserted into the connecting hole 42, it can be installed more easily. Moreover, the inner cutter 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 cutter 13 can stably and reliably support both the left and right shafts 31, 31 on the support frame IO, 10, and can obtain a stable and good rotational state without runout or wobbling.

〔Example〕

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

In Figures 2 and 3, a circuit board 2 and a rechargeable battery 3 are incorporated in the lower half of the main body case l, and a fixed socket is installed at the bottom of the case to enable power supply via a power cord. - The throat 4 and a movable plug 5 for charging that can be inserted into a wall outlet etc. are attached so that they can be used alternatively.

A mesh-like outer cutter 6 is attached to the upper part of the main body case 1 through a holder 7 thereof, which is curved into an arch shape. The left and right wall portions of the holder 7 of the outer cutter 6 are fixedly supported by locking pawls 9 with knobs attached to the left and right upper ends of the main body case 1 via springs 8 so as to be retractable. Therefore, when the left and right locking claws 9 with knobs are pushed in against the spring 8, the holder 7
can be removed together with the outer cutter 6 from the main body case l.

In the upper half of the main body case 1, there are left and right support frames 10.
10 connects each upper end to the slit 7 12 in the upper wall 11 of the main body case l.
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 the upper ends of the support frames 10 and 10, and The same frame 10 in the case 1 includes a motor 15 and an inner cutter unit 1 that controls the rotation of the motor 15.
A gear transmission type drive transmission means 16 for transmitting power to the motor 4 is mounted.

The left and right support frames 10 are assembled into a U-shape when viewed from the front by integrally connecting their bottom parts with a frame bottom plate 17, and a cylindrical motor holder 18 is provided on the bottom side of the frame bottom plate 17.
are overlapped and integrally connected with screws 19. The motor 15 is fitted and supported in the motor holder 18 in a vertical position.

Regarding the drive transmission means 16, an output gear 21 is fixed to an output shaft 20 that protrudes from the upper end of the motor 15 upwardly from the motor holder 18 and the frame bottom plate 17, and the driving shaft is connected between the support frames 10 and 10 above the frame bottom plate 17. 22 is rotatably supported, a gear 23 fixed to the axial center of the driving shaft 22 meshes orthogonally with the output gear 21, and a gear 24 fixed to the right end of the driving shaft 22 is supported on the right side. It meshes with a multistage gear 25 housed within the frame 10.

The left and right support frames 10 have a pair of left and right elastically deformable arms 26 integrally projecting from the motor holder 18 horizontally in the left and right direction, and the tips of each arm 26 are connected to the main body case 1.
By fitting and fixing in the recess 27 provided on the inner wall of the
Supported so that it can move up and down. A spring 30 is interposed between the bottom case 28 fitted to the bottom side of the motor 15 and a spring receiver 29 protruding from the inner wall of the main body case below, and the spring 30 is used to support the left and right support frames 10. The rotary inner cutter 13 is always kept in close contact with the inner surface of the outer cutter 6 by always pushing up the outer cutter side upwardly.

In FIGS. 2 and 5, the left and right support frames 10
The inner cutter unit 14 is detachably attached to the upper end of the
A cylinder-shaped rotary inner cutter 13, a shaft 31 protruding from both left and right ends of the rotary inner cutter 13, and an inner cutter holder 33 that rotatably supports the shaft 31 on the right end side via a bearing 32 are integrally combined. It becomes. The inner blade holder 33 includes a housing 34 with an open bottom that accommodates the bearing 32, a cover 35 that closes the right side of the housing 34, and a housing 34.
4, and a connecting frame 36 horizontally protruding leftward from the lower part of the housing 34, and a passive means 37 is provided on the shaft 31 within the housing 34. The passive means 37 includes two upper and lower gears, a gear 38a fixed on the shaft 31 and a gear 38b meshing with the gear 38a. It faces the open bottom of the housing 34 so as to be removably engaged.

Next, a structure for attaching and detaching the inner cutter unit 14 to the upper end of the support frame 10 will be described. An inner cutter holder receiving portion 39 for receiving and supporting the housing 34 of the inner cutter unit 14 is provided on the upper end side of the right support frame 10. A housing 41 that accommodates a bearing 40 that removably supports the left shaft 31 of the rotary inner cutter 13 is integrally formed on the upper end side of the left support frame 10 so as to be higher than the upper end of the right support frame 10. be done. Further, as shown in FIG. 6, the housing 41 of the left support frame 10
A connecting hole 42 is formed in the lower part of the inner blade holder 33, into which the leading end 36a of the connecting frame 36 of the inner blade holder 33 is inserted and supported in a removable manner.

In FIG. 1 and FIG. 6, the support frame 1
0 is provided with a locking means 43 for locking the distal end 36a of the connecting frame 36 from coming out of the connecting hole 42. The locking means 43 is connected to the connecting hole 4 of the support frame 10.
An inner cutter release button 46 is attached to the outside of an opening 44 formed in the lower part of the cutter 2 in communication with the inner cutter release button 46 so as to be slidable up and down.

The tip 3 of the connecting frame 36 is located on the inner surface of the inner blade release button 46.
A lock pawl 45 that can be freely engaged and disengaged is provided protruding from the inside of 6a. The inner cutter release button 46 is always urged upward by a spring 47 built into the opening 44, and maintains an engaged state in which the lock claw 45 engages the tip 36a of the connecting frame 36 from below. A cover 48 is mounted and fixed on the inner surface of the opening 44 of the support frame 10 so as to face the inner cutter release button 46, thereby preventing the spring 47 from jumping out from the opening 44 to the inside of the support frame 10.

As shown in FIG. 5, a guide frame 49 is horizontally extended between the upper ends of the left and right support frames 10, and vertically parallel ribs 49b are provided at the front and rear of the inner surface of the guide frame 49, respectively.・Provide 49b and connect both ribs 49b.4
A guide groove 50 is provided between 9b to match the height position of the connecting hole 42.

The leading end 3 of the connecting frame 36 is inserted into the guide groove 50 from the right end side.
6a and slide the entire inner cutter unit 14 horizontally to the left, the tip 36 of the connecting frame 36
a is inserted into the connecting hole 42.

In this way, the inner cutter unit 14 is attached to the left and right support frames 10.
When assembling the inner cutter unit 1-14 from the right support frame 10 to the left support frame 10, the connecting frame 36 is slid into the guide groove 50, and the left shaft 31 is inserted into the bearing 40. At the same time, the tip 36a of the connecting frame 36
is inserted into the connecting hole 42. When the tip 36a of the connecting frame 36 is inserted into the connecting 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 once pushes the button 46 down against the spring 47, and the tip 36a
When the button 46 passes over the lock pawl 45, the button 46 is automatically moved upward by the spring 47, and the lock pawl 45 is plunged into engagement with the inside of the tip 36a of the connecting frame 36, thereby locking it. Also, the housing 34 of the inner cutter unit 14 is attached to the right support frame 1.
A state is obtained in which the gear 38b of the passive means 37 meshes with the gear 25 of the drive transmission means 16. With this inner blade unit 14 installed,
The connecting frame 36 is inserted and supported within the connecting hole 42, and
By being locked by the locking means 43 in a manner that prevents it from coming off, a state is obtained in which the vertical, longitudinal, and horizontal movements of the inner cutter unit 14 are regulated.

At this time, in order to more reliably prevent the housing 34 of the inner cutter unit 14 from lifting up from the inner cutter holder receiving part 39, as shown in FIG. The front and rear recesses 59 provided in the lower (fin) portion of the housing 34 may be fitted into the protrusion 49a at the right end of the guide frame 49. Alternatively, on the contrary, the protrusion 49a the housing 34 side, and the recess 59 that fits therein to the support frame 10.
It may be placed on the side.

When this is installed, since the inner cutter unit 14 is integrally equipped with the inner cutter holder 33, the inner cutter holder 33, especially the housing 34 portion, can be held between fingers, and the cutting edge of the rotary inner cutter 13 can be directly attached to the inner cutter unit 14. It can be installed safely without touching it. Further, by sliding the connecting frame 36 onto the guide frame 49, it can be easily attached.

Note that the rotary inner cutter 13 may be cleaned even when it is mounted on the support frame 10.

In this case, the bearing 40 of the shaft 31 at the left end of the rotary inner cutter 13
Insert the rotary knob 58 into the end protruding from the rotary inner blade 13, hold the rotary knob 58 with your fingers, and manually rotate the rotary inner blade 13 while cleaning it with a brush or the like. The entire periphery can be safely cleaned without the risk of injury to hands or fingers as would occur when cleaning.

When removing the rotary inner blade 13 for cleaning or replacing it with a new one, move the outer blade 6 to the holder 7.
When the inner cutter release button 46 is pulled down against the spring 47 after removing it from the upper part of the main body case 1, the lock claw 45 is pulled out downward from inside the tip 36a of the connecting frame 36, and the entire inner cutter unit 14 is removed. By sliding the inner cutter unit 14 to the right, the inner cutter unit 14 can be removed from the support frames 10, 10. Even at the time of this removal, the inner cutter holder 33 can be safely attached by grasping the rotary inner cutter holder 33 with fingers without the danger of cutting one's hand with the cutting edge of the rotary inner cutter 13. In addition, since the locking means 43 cannot be operated unless the outer cutter 6 is removed, the inner cutter unit 14 will not be accidentally removed or rattled.

In FIG. 3, on the front side of the main body case 1, a shaving blade unit 51 that can freely swing in and out and a switch operation knob 52 that can be slid up and down are arranged vertically and mounted. The switch is opened and closed by sliding the switch operation knob 52 up and down. Now, when the switch is turned on by sliding the switch operation knob 52, the motor 15 rotates, and this rotation is transmitted to the rotary inner cutter 13 via the drive transmission means 16 and the passive means 37, and the rotary inner cutter 13 rotates on both shafts. It rotates around 31 in sliding contact with the inner surface of the outer cutter 6. In the razor blade unit 51, an eccentric cam 53 is fixed below the output gear 21 of the output shaft 2 degrees, and this eccentric cam 53 and the razor blade unit 51 are connected to each other by rotating the eccentric cam 530 and reciprocating the movable blade. The shaving blade drive transmission means 54 converts and transmits the motion. As shown in FIG. 3, a safety switch 57 is disposed below the bottom case 28 of the motor 15 in the main body case 1. In other words, when the safety switch 57 is in a normal state with the outer cutter 6 attached, the rotary inner cutter 13 is pushed down a little along with the support frame 1o due to the pressing force of the outer cutter 6, and the bottom case of the motor 15 at the lower end of the frame 1o is 28 to close the power supply circuit, but when the outer blade 6 is removed, the support frame 10 moves upward by the spring 30 and the pressure by the bottom case 28 is released, so that the power supply circuit is opened. There is. Therefore, when the outer cutter 6 is removed, the rotary inner cutter 13
It is safe because there is no chance of it being rotated carelessly.

In FIG. 3, a recess 55 is formed on the rear side of the upper part of the main body case 1. As shown in FIG. The recess 55 is formed between the left and right support frames 10 on the upper wall 11 of the main body case 1 and between the outer cutter holder 7. A hair receiving tray 56 is housed in this recess 55 so that it can be inserted and removed freely with the upper surface of the upper wall 11 as a sliding surface. Hair debris falling from the rotary inner cutter 13 passes through the inside of the guide frame 49 and the inside of the connecting frame 36 and is stored in the hair receiving tray 56.

The structures of the fixed socket 4 and the movable plug 5 will be explained with reference to FIGS. 2, 7 to 1O. At the bottom of the main body case 1, a plug exit/exit port 60 is opened on the negative side, and an operation groove 61 is opened on the bottom. The plug outlet 6° can be opened and closed by a plug cover 62 mounted above the plug outlet 6o on one side of the main body case 1 so as to be slidable up and down. The corner of the main body case 1 on the side where the plug exit/exit port 60 is located is formed in a cross-sectional shape that is rounded in the vertical and longitudinal directions, and the lower end of the plug cover 62 also has the shape of the corner of the main body case 1. It is formed into a correspondingly rounded shape. Therefore, even if the main body case 1 is gripped strongly, the corners will not cause any damage to the palm.

The movable plug 5 incorporated into the bottom of the main body case I has a pair of front and rear plug blades 63 and a blade stand 64 integrally connected to the base end of the plug blades 63. In addition, the movable plug 5 has a plug blade ejection opening body 65 inserted into the tip side of the plug blade 63, and grooves provided in a pair of front and rear connecting frames 66 integrally extending from the plug blade ejection opening body 65. A pin 68 protruding from the front and rear sides of the blade base 64 is engaged with the blade 67 . In this way, the movable plug 5 is positioned inside the bottom of the main body case 1 so that the plug blade 63 has its tip end facing the plug exit/exit port 60, and the plug blade 63 and the connecting frame 66 straddle both the front and rear sides of the fixed socket 4. It will be incorporated like this. Further, an operation knob 69 is attached to the bottom side of the blade base 64, and this operation knob 69
are capable of sliding in the left and right directions in the operating groove 61 together with the movable plug 5, and are also capable of engaging and disengaging from recesses 70 and 71 provided at the left and right end positions of the liquid groove 61, respectively. .

As shown in FIGS. 7 and 8, when the operating knob 69 is engaged with the recess 71 at the right end of the operating groove 61, the movable plug 5 moves the plug blade 63 and the plug blade egress/exit body 65. The plug is in a state of being retracted and stored inside the plug exit/exit port 60. Now, slide the plug cover 62 upward to open the plug exit/exit port 60, disengage the operating knob 69 from the recess 71 at the right end, and then slide it to the left along the operating groove 61. In FIG. 7, the plug blade 63 protrudes from the plug blade ejection opening body 65 and the plug ejection opening 60 until the pin 68 reaches the left end of the groove 67, as shown by the two-dot chain line in FIG. When the operation knob 69 is further slid to the left until it engages with the recess 70 at the left end of the operation groove 61, the plug blade ejection/retraction body 65 is moved in that direction through the engagement between the bin 68 and the connecting frame 66. As shown in FIGS. 9 and 10, the plug blade 63 is pushed together with the plug blade 63 so that the plug blade 63 protrudes from the plug ejection opening 60 by a predetermined amount, and the plug blade ejection opening body 65 also moves away from the plug. It protrudes from the exit/exit door 60. In the protruding state of the plug blade protrusion/retraction body 65, the flat tip surface 65a is the rounded part R of the curved cross-section corner of the main body case 10.
It is set to be in a straight line with the straight line part S that continues upward.

Therefore, even when the plug blade 63 is made to protrude from the plug outlet 60 at the convex cross-section corner during charging, the tip surface 65a of the plug blade outlet body 65 is connected to the wall outlet C (
(See the two-dot chain line in FIG. 9), and a stable and reliable charging posture can be achieved. Note that when charging is performed using the movable plug 5, the fixed socket 4 is closed by a socket cover 72 that is integrally formed on the bottom side of the blade stand 64. In addition, in order to return the movable plug 5 to the plug exit/removal slot 60, move the operating knob 69 into the recess 71 at the right end of the operating groove 61.
It is only necessary to slide the groove 61 until it engages with the groove 61.

[Another example]

In the above embodiment, gear transmission is employed as the drive transmission means 16, but instead of this, for example, belt transmission may be used. In this case, the passive means 37 is a friction wheel that slides on the belt pulley.

[Brief explanation of the drawing]

The drawings show an embodiment of the rotary electric shaver according to the present invention, in which Fig. 1 is a front view of the main parts, Fig. 2 is a longitudinal sectional front view, and Fig. 3 is a cross section taken along the line ■-■ in Fig. 2. Figure 4 is the first
rv-rvVi enlarged sectional view in the figure, Figure 5 is a perspective view of the main part shown with the inner cutter unit removed, Figure 6 is an exploded perspective view of the upper end portion of the support frame on the side equipped with the locking means, Figure 7 is a vertical sectional front view of the bottom of the main case, Figure 8 is the
FIG. 9 is a sectional view corresponding to FIG. 7 showing the state in which the movable plug is protruded, and FIG. 10 is a sectional view taken along line X--X in FIG. 9. ■...Body case, 6...Outer blade, 10...Support frame, 11...Top wall of main body case, 13...Rotary inner blade, 14... - Inner cutter unit, 15... Motor, 16... Drive transmission means, 31... Shaft, 33... Inner cutter holder, 34... Housing of inner cutter holder, 36... ...Connecting frame, 37...Passive means, 39, 40, 41, 42, 43, - Inner blade holder receiving part, - Bearing, - Housing of support frame, - Connection hole, - Locking means. Yasushi Yamashita Figure 8 Figure 0

Claims (1)

[Scope of Claims] 1. A rotary type electric machine equipped with a rotary inner blade (13) that rotates in sliding contact with the inner surface of an arch-shaped outer blade (6) that is detachably attached to the upper side of the main body case (1). The razor includes a rotary inner cutter (13), a shaft (31) protruding from both left and right end surfaces of the rotary inner cutter (13), and a rotary inner cutter (13).
) and an inner cutter holder (33) that holds the rotary inner cutter (13) to form an inner cutter unit (14). A supporting housing (34) and a connecting frame (3) extending from the bottom of the housing (34) in the direction of the shaft (31) at the other end.
6), and a shaft (3) in the housing (34) of the inner blade unit (14).
1) is equipped with a passive means (37), and a pair of left and right support frames (10) protrudes from the upper wall (11) of the main body case (1) in an opposing manner, one of the support frames (10 ) is provided with an inner blade holder receiving part (39) for receiving and supporting the lower end of the housing (34) at the upper end protruding from the upper wall (11), and the supporting frame (10) is provided with an inner blade holder receiving part (39) for receiving and supporting the lower end of the housing (34). Drive transmission means (16) for transmitting the driving force of the motor (15) to the passive means (37) on the shaft (31) at one end of the rotary inner cutter (13).
), and a rotary inner blade (
13) A housing (41) containing a bearing (40) that rotatably supports the shaft (31) at the other end in a removable and removable manner.
), and a connection hole (42) into which the tip (36a) of the connection frame (36) is inserted and removed is provided at the lower part of the housing (41), and the support frame on the side having the bearing (14) In (10),
A locking means (43) removably engages with the tip (36a) of the connecting frame (36) so that the tip (36a) of the connecting frame (36) does not slip out of the connecting hole (42) when the inner cutter unit (14) is installed.
) A rotary electric razor. 2. A guide frame (49) is provided horizontally between the left and right support frames (10, 10) for guiding and sliding the tip (36a) of the connecting frame (36) into the connecting hole (42). The rotary electric shaver according to item 1.