JP3600504B2 - Electric razor - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an electric shaver characterized by an outer cutter frame and an outer cutter holder.
[0002]
[Prior art]
As this kind of electric razor, for example,There is one disclosed in Japanese Utility Model Laid-Open No. 58-112283.
[0004]
The present inventionAn object of the present invention is to provide an electric razor in which an outer blade frame and an outer blade holder are improved.
[0005]
[Means for Solving the Problems]
The present invention provides an outer cutter frame (19) having an inner cutter (2) driven by the power of a motor (44) and an arch-shaped outer cutter (3) on an upper portion of a main body case (1); An electric razor provided with an outer blade holder (17) for supporting a frame (19), wherein the outer blade holder (17) is mounted on the main body case (1) and the outer blade frame (19) and the inner razor are provided. Both the blade (2) are vertically movable, and the outer blade frame (19) is composed of left and right frame portions (19a) and (19b) and front and rear frame portions (19c) and (19d). The outer blade holder (17) includes front and rear walls (17a) and (17b) and left and right walls (17c) and (17d).The right and left walls (17c) and (17d) of the outer blade holder (17) allow the upper ends of the left and right frame portions (19a) and (19b) of the outer blade frame (19) to be inclined.A U-shaped notch (23) is formed.
Further, a protrusion 22 is formed on the left and right frame portions 19a and 19b of the outer cutter frame 19 at a position facing the notch 23 so as to protrude in the left-right direction.
Further, the end face of the projection 22 is protruded to a position overlapping the notch 23.
Further, the vertical movement is guided in a state where the protrusion 22 is in contact with the inner wall of the notch 23.
Further, the cross section of the projection (22) is circular.
Further, a protrusion 22 is provided at a position on an extension of the longitudinal direction of the inner blade 2 in the axial direction.
Further, the vertical movement of the outer cutter frame 19 with respect to the outer cutter holder 17 is regulated by regulating means provided between the outer cutter holder 17 and the outer cutter frame 19. 23.
The projection 22 is a plate-like piece formed of a member different from the outer blade frame 19.
[0006]
[Action]
According to the configuration of claim 1,Outer blade frame 19 on one end sideYou can float even if you tilt it a little.
According to the configuration of claim 2, the floating displacement amount of the outer cutter frame 19 can be easily confirmed.
According to the configuration of the third aspect, the protrusion 22 formed on the outer cutter frame 19 is guided by the notch 23.
According to the configuration of claim 4, the projection 22 formed on the outer cutter frame 19 isContactGuide to the notch 23 to float the outer cutter frame 19SometimesThe front and rear blur of the outer cutter frame 19 can be prevented as much as possible.
According to the configuration of the fifth aspect, it is possible to impress to the user that the inner blade 2 itself moves up and down along the outer blade frame 19 on the inner surface of the outer blade 3.
According to the configuration of claim 6, the displacement amount of the inner blade 2, which is not actually seen, and the position when displaced can be easily confirmed.
According to the configuration of claim 7, the outer blade frame 19 isDownward movement regulation is ensured.
According to the configuration of claim 8, the work of attaching the outer cutter frame 19 to the outer cutter holder 17 can be easily performed.
[0007]
【Example】
One embodiment of a rotary electric shaver according to the present invention will be described with reference to the drawings.
In FIG. 4, the electric shaver has a structure in which a cutting head 4 composed of a rotary inner blade 2 and a mesh-shaped outer blade 3 is provided at an upper portion of a main body case 1. A plug 6 of a charge / AC type is provided at the bottom of the main body case 1.
[0008]
In FIGS. 4 and 5, the main body case 1 is formed by abutting plastic front and rear cases 1a and 1b and integrally connected by upper and lower tightening screws 5.
As shown in FIG. 5 and FIG. 12, a front panel 7 for makeup is provided on the outer surface of the front case 1a, and the power switch button 9 is set at a lower standby position (switch-off position) shown by a solid line in FIG. It is mounted slidably up and down over the motor start position (switch on position) one step higher. The switch button 9 is integrally connected to a switch leaf spring 10 arranged along the inner surface of the front case 1a, and the switch leaf spring 10 opens and closes between terminals of a drive circuit on a circuit board 11, which will be described later, by sliding up and down. .
[0009]
On the other hand, as shown in FIG. 5 and FIG. 11, a rear panel 13 for makeup is provided on the outer surface of the rear case 1b, and a shaving unit 14 is provided on an upper portion thereof. An up-down slide type shaving operation button 16 for switching operation to the retraction storage position is provided vertically.
[0010]
As shown in FIGS. 5 and 13, a part 112 such as a convex shape formed on the lower part of the rear case 1b is marked with a lot number, a manufacturing type name, a manufacturer name, or the like by engraving or printing. The structure is such that the portion 112 is exposed to the outside through a window 113 provided at a lower portion of the rear panel 13. By configuring the rear wall structure of the main body case 1 with the rear case 1b and the rear panel 13 in this manner, even when the rear panel 13 is formed of an expensive material and the rear case 1b is replaced by repair, repair, or the like, The expensive rear panel 13 can be used as it is, and if the rear panel 13 is plated or the like, it becomes impossible or difficult to engrave or print the display. It is advantageous.
[0011]
3 and 5, the shaving operation button 16 is provided with a finger hook 115. Further, a concave portion 116 to which a grasping finger (usually an index finger or a middle finger) is applied when gripping the main body case 1 is formed in an elliptical shape in a front view over a part of the rear panel 13 and the shaving operation button 16 located at the downward sliding position. ing. The finger hook 115 is formed in an arc shape along the elliptical shape of the concave portion 116.
[0012]
The outer blade 3 is detachably mounted on the upper part of the main body case 1 with an outer blade holder 17.
As shown in FIG. 19, the outer cutter 3 is bent and fixed in an arch shape along the inner cutter 2 inside the outer cutter holder 17 and held and fixed to the outer cutter frame 19. As shown in FIG. 17, the outer cutter frame 19 has front and rear frame portions 19c and 19d that connect the left and right frame portions 19a and 19b and the lower front portions and the lower rear portions of the left and right frame portions 19a and 19b. And is formed in the shape of a rectangular frame. Then, the arch-shaped outer blade 3 has its front and rear ends 3a and 3b overlapped on the outer surfaces of the front and rear frame portions 19c and 19d of the outer blade frame 19, and is formed on the swaging pin 20 protruding from the front and rear frame portions 19c and 19d. Each of them is integrally caulked and received on the arc edges of the arc-shaped outer blade receiving step 21 which protrudes the arc-shaped left and right ends 3c and 3d on the respective inner surfaces of the left and right frame portions 19a and 19b. To support.
[0013]
As described above, the outer cutter 3 integrally and closely fixes the four ends 3a, 3b, 3c, 3d of the outer cutter 3 to the four-side frame portions 19c, 19d, 19a, 19b of the outer cutter frame 19. It is possible to obtain a strong adhered state with little local deformation.
[0014]
The outer cutter frame 19 on which the outer cutter 3 is stretched is moved up and down by a predetermined stroke from below the inside of the outer cutter holder 17 having a rectangular cylindrical shape having front and rear right and left walls 17a, 17b, 17c and 17d as shown in FIG. After the fitting, the disc-shaped piece 22 is cut from the U-shaped notch 23 at the upper end of each of the left and right walls 17c and 17d of the outer blade holder 17 to the left and right frame portions 19a and 19b of the outer blade frame 19. They are fitted into a square hole 24 provided at the upper end and are integrally connected (see FIG. 18). As a result, a protrusion is formed in the left and right direction from the left and right frame portions 19a and 19b of the outer cutter frame 19.. Also make up the protrusionSince the piece 22 is arranged at a position facing the notch 23, the floating displacement of the outer cutter frame 19 can be easily confirmed using the notch 23 as a guide.
[0015]
18 and 19, the upper limit movement of the outer cutter 3 in the outer cutter holder 17 is controlled by three protrusions 25 provided on the inner surface of the outer cutter holder 17 and correspondingly provided on the outer cutter frame 19. This is performed by engagement with the projection 26. The lower limit movement is regulated by engaging a pin 27 protruding from the inner surface of the outer cutter holder 17 with a notch 29 provided at the lower end of the outer cutter frame 19.The projections 25, the projections 26, the pins 27, and the cutouts 29 are regulating means.Also, as shown in FIG. 18, the piece 22 is in the form of projecting toward the notch 23, that is,End faceNotch 23OverlapSince the outer blade holder 19 protrudes to the position, the lower limit movement of the outer cutter frame 19 is also controlled by the contact engagement of the piece 22 with the notch 23 of the outer cutter holder 17. Thereby, the detachment of the outer cutter frame 19 at the time of pressing against strong skin can be reliably prevented. As shown in FIGS. 2 and 3, the vertical movement is guided in a state in which the piece 22 is close to the inner wall of the notch 23, so that the floating operation of the outer cutter frame 19 is smooth, and Blur can be prevented as much as possible.
[0016]
The piece 22 is attached to the left and right frame portions 19a and 19b of the outer cutter frame 19, and is attached to the outer cutter holder 17 so as to move following the vertical movement of the outer cutter frame 19. As a result, for example, if the piece 22 is formed in a circular shape similar to the end face shape of the inner cutter 2, as the outer cutter frame 19 moves up and down with respect to the outer cutter holder 17 due to the pressing of the outer cutter 3, In a side view, the piece 22 moves up and down within the notch 23, and this movement gives the user an impression as if the inner blade 2 itself exhibits such a vertical movement on the inner surface of the outer blade 3. Further, if the piece 22 is formed in a circular shape similar to the end face shape of the inner cutter 2 and is made of a transparent material, and the outer cutter frame 19 is made transparent, the rotation state of the end face of the inner cutter 2 and the gear 59 described later will be described. When disks are arranged separately from the rotation state or the gear 59, the rotation state of the disks can be seen from the outside, and the feeling of a rotary electric shaver can be presented to the outside.
[0017]
On the rear surface of the outer cutter holder 17, a comb 30 for introducing and guiding long hairs and curly hairs to the outer cutter 3 is attached.
At the lower end of the front wall 17a of the outer blade holder 17, as shown in FIG. 2, an arc-shaped notch 32 is provided which matches the outer shape of the bulging portion 31 provided above the switch button 9 on the outer surface of the front case 1a. By providing a rectangular notch 33 that escapes from the shaving unit 14 in the lower portion of the rear wall 17b of the outer cutter holder 17 as shown in FIG. 3, the outer cutter holder 17 can be formed in a front-rear asymmetric shape. Therefore, the outer blade holder 17 can be easily distinguished before and after the outer blade holder 17 and is convenient for this mounting.
The outer blade holder 17 also helps prevent the outer blade holder 17 from rattling in the left-right direction by engaging the notch 32 with the bulging portion 31.
[0018]
The outer blade holder 17 is detachably attached to the upper part of the main body case 1 as described above. For this purpose, as shown in FIGS. 6 and 7, the outer blade holder 17 is provided with a concave portion 34 on each inner surface of the left and right walls 17 c and 17 d so as to straddle a slit 37 to be described later. The mounting state of the outer blade holder 17 is maintained by engaging the concave portion 34 with the engaging member 36 which is mounted so as to be freely retractable via the spring 35.
A detach button 39 is attached to each of the slits 37 provided on the left and right walls 17c and 17d of the outer blade holder 17 so as to be elastically displaceable inward and outward with the upper end 39a as a fulcrum. When the lower end portion 39b of the button 39 is pressed with a finger and the engaging element 36 is immersed, the outer blade holder 17 can be pulled out from the upper part of the main body case 1 upward.
[0019]
As shown in FIG. 14, the inner blade 2 has a cylindrical shape, has a plurality of spiral cutting blades 40 on its peripheral surface, and integrally protrudes a shaft 41 from the center of each of the left and right end surfaces. .
The drive unit 42 of the inner blade 2 is incorporated in the main body case 1. As shown in a pre-assembled state in FIG. 11, the drive unit 42 has a drive chassis 43 for rotatably supporting the inner blade 2, a motor 44 mounted on the drive chassis 43, and rotation of the motor 44. A drive transmission mechanism 45 for decelerating and transmitting to the inner blade 2 is integrally combined.
[0020]
As shown in FIG. 14, the drive chassis 43 integrally connects left and right chassis 47 and 48 having bearings 46 for receiving the left and right ends of the shaft 41 of the inner cutter 2 at upper ends thereof and upper ends of the left and right chassis 47 and 48. And a bottom chassis 50 integrally connecting the lower ends of the left and right chassis 47 and 48. These have a rigid structure having a square shape in a front view as a whole as shown in FIGS. To be assembled together.
The motor 44 is integrally attached to the lower side of the bottom chassis 50 with a motor holder 51 made of plastic. In this case, the motor 44 and the motor holder 51 are fastened together to the bottom chassis 50 by two screws 52.
[0021]
As shown in FIG. 6, the drive transmission mechanism 45 mounted on the drive chassis 43 fixes an output gear 54 to an output shaft 53 projecting upward from the upper end of the motor 44 to the motor holder 51 and the bottom chassis 50. An intermediate shaft 55 is rotatably supported between the left and right chassis 47 and 48 above the center shaft 50, and a face gear 56 fixed to an axial center of the intermediate shaft 55 is meshed with the output gear 54 at right angles. A gear 57 fixed to the left end of the shaft 55 is meshed with a multi-stage gear 58 housed between the left chassis 47 and the gear cover 47a.
[0022]
In FIG. 6, a gear 59 fixed to the left end of the shaft 41 of the inner cutter 2 and two gears 60 meshing with the gear 59 are incorporated into the outer side of the left bearing 46, and both gears 59 and 60 are opened to the bottom. The lower gear 60 facing the open bottom of the gear cover 61 is meshed with the uppermost gear of the multi-stage gear 58. Therefore, the rotation of the motor 44 is transmitted to the inner cutter 2 via the intermediate shaft 55, the multi-stage gear 58, and the gears 59 and 60.
[0023]
The inner blade 2 is detachably attached to the drive unit 42 so that the inner blade 2 can be replaced. To this end, the left bearing 46 and the gears 59 and 60 are integrally provided at the end of the left shaft 41 of the inner cutter 2 as shown in FIG. The lower part of the inner cutter 2 is integrally provided to protrude rightward.
[0024]
To mount the inner cutter 2 on the drive unit 42, the right shaft 41 of the inner cutter 2 is removably inserted into the right bearing 46, and the left bearing 46 is detachably connected to the upper end of the left chassis 47. I do. At this time, the tip of the coupling frame 62 of the inner cutter 2 is slid along the inner surface of the upper chassis 49 as shown in FIG. And the lower chassis 46 on the right side of the upper chassis 49.
When the distal end of the coupling frame 62 is inserted into the coupling hole 63, the distal end comes into contact with the taper of the lock claw 65 of the inner blade removal plate 64, and the removal plate 64 is once pressed down against the spring 66. When the leading end of the connection frame 62 passes over the lock claw 65, the inner blade removing plate 64 is automatically moved upward by the spring 66, and the lock claw 65 is pushed into the inside of the front end of the connection frame 62 to be locked. As shown in FIG. 6, the left bearing 46 and the gear cover 61 are fixed to the upper end of the gear cover 47a of the left chassis 47, so that the gear 60 in the gear cover 61 is positioned at the uppermost position of the multi-stage gear 58 of the drive transmission mechanism 45. A state of meshing with the gear is obtained.
[0025]
As shown in FIGS. 11 and 14, the drive unit 42 includes front and rear thin support arms 67 and 68 which are elastically deformable only in the vertical direction from the left and right ends of the plastic motor holder 51. The front ends of the left and right front and rear support arms 67 and 68 are integrally connected by a single front and rear connection pin 69, and each of the right and left front and rear support arms 67 and 68 is protruded integrally. The front and rear connection pins 69 are individually formed integrally with each other so as to be separated from each other, and a flange 70 is attached to each of the separated connection pins 69.
[0026]
As shown in FIG. 11, for the purpose of preventing the inner blade 2 from rotating when cleaning the lint by removing the outer blade 3 together with the outer blade holder 17, a motor 44 is provided in the drive unit 42. A switch assembly 71 composed of a microswitch or the like for controlling power supply to the power supply is assembled in a temporarily fixed state.
That is, as shown in FIG. 9, the switch assembly 71 has mounting holes 73 on the front and rear surfaces of the plastic case 72, and the connection pins 69 of the right support arms 67 and 68 are inserted into the mounting holes 73 in front and rear thereof. It is temporarily fixed and held by being fitted in and holding it using the elasticity of the support arms 67 and 68.
The temporary fixing of the switch assembly 71 can be easily performed by utilizing the elasticity of the support arms 67 and 68. Since the switch assembly 71 is securely held by the elastic pinching of the support arms 67 and 68 between the coupling pins 69 and 69, the switch assembly 71 is dropped from the drive unit 42 until the drive unit 42 is assembled to the main body case 1. There is nothing.
[0027]
Further, the circuit board 11 shown in FIG. 11, which is disposed before and after the motor 44, is connected to the motor 44 and the switch assembly 71 via lead wires beforehand, and is preassembled to the drive unit 42. On the front circuit board 11, two rechargeable batteries 75 such as NiCd are mounted so as to be located on the left and right sides of the motor 44.
As shown in FIG. 16, the battery 75 has terminal plates 76a and 76b soldered to both poles thereof bent, and cuts and raised pieces 79a and 77a of elastically deformable terminal plates 77a and 77b mounted on the circuit board 11. 79b to make elastic engagement contact. In this contact state, the battery 75 is pressed against the circuit board 11 on the inner surface of the rear case 1b by tightening the front and rear cases 1a and 1b with the fastening screws 5, whereby the terminal plates 76a and 76b on the battery 75 side and the circuit board 11 side Can be brought into contact with the terminal plates 77a and 77b with a sufficient contact pressure.
The battery 75 thus mounted on the circuit board 11 is easily disassembled from the circuit board 11 by loosening the tightening screw 5 to disassemble the main body case 1, cutting and raising the terminal plates 76a and 76b, and extracting the terminal plates 76a and 79b from the pieces 79a and 79b. It can be removed and its disposal can be done easily.
[0028]
Thus, the drive unit 42 pre-assembled in this way is installed between the front and rear cases 1a and 1b of the main body case 1.
At this time, the drive unit 42 is incorporated so that the upper ends of the left and right chassis 47 and 48 project upward from the left and right slits 90 of the upper walls of the front and rear cases 1a and 1b, as shown in FIGS. . As shown in FIGS. 5 and 9, the front and rear ends of the coupling pins 69 of the support arms 67 and 68 are inserted and fixed into holes 92a of bosses 92 provided on the inner walls of the front and rear cases 1a and 1b.
[0029]
As a result, the connecting pins 69 that pinch the switch assembly 71 are restricted from moving back and forth between the inner walls of the front and rear cases 1a and 1b, and the holding state of the switch assembly 71 fixes the front and rear cases 1a and 1b with screws. Since the switch assembly 71 is more firmly held in accordance with the screw tightening state, the fixed state of the switch assembly 71 in the main body case 1 is ensured. In this case, as shown in FIGS. 7 and 9, the switch assembly 71 is provided with ribs 93 and 94 for restricting forward movement and upward movement of the switch assembly 71 on the inner surface side of the main body case 1. This is preferable for more securely positioning and fixing.
As shown in FIGS. 6 and 7, the gap between the left and right chassis 47 and 48 and each slit 90 is closed in advance by a flexible hair intrusion prevention rubber 91 provided in each chassis 47 and 48.
[0030]
When the drive unit 42 is assembled in this manner, the entire drive unit 42 including the inner blade 2 is supported by the left and right support arms 67 so as to be able to float in the vertical direction through elastic deformation. 6 and 7, a push-up spring 96 is interposed between the bottom side of the drive chassis 43 and the spring receiver 95 on the main body case 1 side, and the push-up spring 96 causes the drive unit 42 itself as a whole. The inner blade 2 is brought into close contact with the inner surface of the outer blade 3 by being elastically biased so as to be constantly pushed upward.
As shown in FIG. 7, one of the push-up springs 96 is disposed outside the right chassis 48, and the distance between the push-up springs 96 and the other push-up spring 96 (see FIG. 6) is set to be as large as possible. Floats stably without twisting or tilting when floating.
[0031]
In a normal state, as shown in FIG. 18A, the outer blade 3 is pushed up by the inner blade 2, and pieces which are integrally connected to both ends of the outer blade 3 via the outer blade frame 19. Reference numeral 22 denotes a state where the outer blade 3 is slightly lifted from the notch 23 of the outer blade holder 17. When the outer blade 3 is pushed down by skin pressure as shown in FIG. Proximity or contact.
Since the connecting pins 69, 69 sandwiching the front and rear of the switch assembly 71 are on the fixed end sides of the support arms 67, 68, the elastic deformation of the support arms 67, 68 may be hindered during the floating operation of the drive unit 42. There is nothing.
[0032]
7 and 8, when the outer blade holder 17 is normally attached to the main body case 1 with respect to the switch assembly 71, the lower end of the holder 17 projects from a part of the main body case 1 as shown in FIG. The switch operation piece 97 keeps pushing the plunger 98 of the switch assembly 71, and the switch assembly 71 closes the power supply circuit to the motor 44. When the outer blade holder 17 is removed as shown in FIG. 8, the pressing action on the switch operation piece 97 by this is released, and the power supply circuit is opened. Therefore, when the outer blade holder 17 is removed in the case of cleaning or the like, the inner blade 2 does not rotate carelessly and is safe.
[0033]
Regarding the detailed shape and operation of the switch operation piece 97, the pressed piece 97a pressed by the outer blade holder 17 and the pressing actuating piece 97b pressing the plunger 98 are formed in a shape of "<", and pressed. A taper 100 is provided at the tip of the operating piece 97b. On the other hand, a taper 99 corresponding to the inclination of the pressed piece 97a and a taper 89 corresponding to the taper 100 are provided on the body case 1 side. When the switch operating piece 97 is pushed by the outer blade holder 17, it slides down the tapers 89 and 99 and pushes down the plunger 98, so that the outer blade holder 17 is detached from the main body case 1 and the pressing action by this is released. Then, the plunger 98 is pushed up to its original position as it is projected by the return spring (not shown).
[0034]
In FIG. 21, the shaving unit 14 mounted on the rear side of the main body case 1 comprises a fixed comb blade 102 and a movable comb blade 103 fixed to a shaving holder 101, and a movable comb blade which inherits a motor output. An engaging element 104 that transmits to 103 is provided on the movable comb blade 103.
The shaving unit 14 is arranged around the support shaft 15 in a storage posture (solid line state diagram) along the outer surface of the rear case 1b with its blade edge downward and a use posture (two-dot chain line state diagram) in which the blade edge protrudes forward. It is provided rotatably. The posture switching operation is performed by a shaving operation button 16 provided on the outer surface of the rear case 1b so as to be freely slidable, and a shaving lever 105 for connecting the operating button 16 and the shaving unit 14.
[0035]
On the other hand, the vibrator 106 is mounted on the upper side of the bottom chassis 50. The vibrator 106 transmits the rotation of the motor 44 to the movable comb blade 103 of the shaving unit 14, and has a claw 107 at the rear end for engaging with the engaging element 104 on the movable comb blade 103 side. In addition, a longitudinally-long hole 110 which is fitted in the eccentric cam 109 on the output shaft 53 at the front and rear middle thereof, and has a front end rotatably formed by a pin 111 projecting from the upper surface of the motor holder 51 on the front side of the upper surface. Pivot.
[0036]
In this case, the vibrator 106 oscillates about the pin 111 in response to the rotation of the eccentric cam 109, and the engaging element 104 engages with the claw 107 of the vibrator 106 in the projecting use posture of the shaving unit 14. By doing so, the driving force is transmitted to the movable comb blade 103. At this time, the vibrator 106 is passed between the upper surface of the bottom chassis 50 and a gate-shaped guide rod 114 (see FIG. 14) provided on the rear side of the upper surface. 106 smoothly swings without being twisted in the vertical direction. Further, in order to make the oscillating arc locus of the claw 107 of the vibrator 106 as close to a straight line as possible, it is desired that the length of the vibrator 106 in the front-rear direction be as long as possible within the limited space of the main body case 1. . Therefore, it is preferable that the front end of the vibrator 106 be accommodated in the recess 31a on the inner surface side of the bulging portion 31 of the front case 1a.
[0037]
In the present invention, in addition to the above-described safety switch, for example, the switch leaf spring 10 of the power switch and the terminal on the circuit board 11 may be used as the switch assembly 71 for sandwiching and holding between the tips of the support arms 67 and 68. And a power switch composed of a switch assembly and holding the switch assembly between the coupling pins 69 and 69 of the support arms 67 and 68.
[0038]
The means for holding the switch assembly 71 between the tips of the support arms 67 and 68 may be as shown in FIGS. 22A and 22B. In this case, bosses 117 provided at the respective ends of the support arms 67 and 68 are provided, and the connecting pins 69 separate from these are passed through the holes of both the bosses 117 and the mounting holes 73 of the switch assembly 71, respectively. The assembly 71 is temporarily held. Thereafter, both ends of the connecting pin 69 are fitted into both the bosses 117, or only both ends of the connecting pin 69 are fitted into the holes 92a of the bosses 92 on the inner walls of the front and rear cases 1a and 1b. The switch assembly 71 is firmly held and held by using force.
Further, the projecting position of the switch operation piece 97 from the main body case 1 may be a place other than the above-mentioned portion of the main body case 1, and it is necessary that the switch operation piece 97 be pushed by the lower end or the inner wall of the outer blade holder 17. It is.
[0039]
【The invention's effect】
As described above, according to the configuration of the first aspect, the outer blade frame 19 is located at one end side.You can float even if you tilt it a little.
According to the configuration of claim 2, the floating displacement amount of the outer cutter frame 19 can be easily confirmed.
According to the configuration of the third aspect, the protrusion 22 formed on the outer cutter frame 19 is guided by the notch 23.
According to the configuration of claim 4, the projection 22 formed on the outer cutter frame 19 isContactThe outer blade frame 19 is floating by being guided to the notch 23ToThe front and rear blur of the outer cutter frame 19 can be prevented as much as possible.
According to the configuration of the fifth aspect, it is possible to give an impression to the user that the inner blade 2 itself moves up and down along the outer blade frame 19 on the inner surface of the outer blade 3..
According to the configuration of claim 6, the displacement amount of the inner blade 2, which is not actually seen, and the position when displaced can be easily confirmed.
According to the configuration of claim 7, the outer blade frame 19 isDownward movement regulation is ensured.
According to the configuration of claim 8, the work of attaching the outer cutter frame 19 to the outer cutter holder 17 can be easily performed.
[Brief description of the drawings]
FIG. 1 is a side view schematically showing a driving unit.
FIG. 2 is an external perspective view seen from the front.
FIG. 3 is an external perspective view seen from the rear.
FIG. 4 is an overall vertical sectional front view.
FIG. 5 is an overall vertical side view.
FIG. 6 is a vertical sectional front view of a left chassis portion.
FIG. 7 is a vertical sectional front view of a right chassis portion.
FIG. 8 is a front view of a safety switch portion.
FIG. 9 is a side view of a safety switch portion.
FIG. 10 is a sectional view showing a state in which the inner blade is being mounted.
FIG. 11 is an exploded perspective view of the whole.
FIG. 12 is an exploded perspective view of a front case.
FIG. 13 is an exploded perspective view of a rear case.
FIG. 14 is an exploded perspective view of a drive unit.
FIG. 15 is a perspective view of an inner blade.
16A is a perspective view of a state where a battery is separated from a circuit board, and FIG. 16B is a side view of a state where a battery is mounted on the circuit board.
FIG. 17 is an exploded perspective view of the outer blade.
18A is a longitudinal sectional front view showing a state where an outer blade is pushed up by an inner blade, and FIG. 18B is a longitudinal sectional front view showing a state where the outer blade is pushed down by skin.
FIG. 19 is a longitudinal sectional side view showing a state where an outer blade is pushed up by an inner blade.
FIG. 20 is a vertical sectional side view showing a state where the outer blade is pressed down by the skin.
FIG. 21 is a vertical sectional side view showing a drive system and an operation system of the shaving unit.
FIG. 22A is an exploded perspective view showing another holding means of the switch assembly, and FIG. 22B is a cross-sectional view showing an assembled state thereof.
[Explanation of symbols]
1 Body case
2 Inner blade
3 Outer blade
17 Outer blade holder
19 Outer blade frame
22 protrusion
23 Notch
44 motor

Claims (8)

An outer cutter frame (19) having an inner cutter (2) driven by the power of a motor (44) and an arch-shaped outer cutter (3) on an upper part of the main body case (1), and an outer cutter frame (19) An electric shaver provided with an outer cutter holder (17) for supporting the outer cutter holder, the outer cutter frame (19) and the inner cutter (2) in a state where the outer cutter holder (17) is mounted on the main body case (1). The outer blade frame (19) is composed of left and right frame portions (19a) and (19b) and front and rear frame portions (19c) and (19d). 17) is composed of front and rear walls (17a) and (17b) and right and left walls (17c) and (17d), and the outer blade frame is provided on the left and right walls (17c) and (17d) of the outer blade holder (17). left and right frame portions of (19) (19a) · U-shaped cutout that allows the inclination of the upper end of (19b) (23) is formed Electric shaver characterized in that it is. The projection (22) projecting in the left-right direction is formed on the left and right frame portions (19a) and (19b) of the outer cutter frame (19) at a position facing the notch (23). Electric razor as described. The electric shaver according to claim 2, wherein an end face of the projection (22) projects to a position overlapping the notch (23) . 4. The electric shaver according to claim 3 , wherein the up- and- down movement is guided with the protrusion (22) in contact with the inner wall of the notch (23) . 5. The electric shaver according to any one of claims 2 to 4, wherein a cross section of the projection (22) is circular . The electric shaver according to any one of claims 2 to 5, wherein a projection (22) is provided at a position on an extension of the longitudinal direction of the inner cutter (2) in the longitudinal direction . Vertical movement restricting of the outer cutter frame (19) relative to the outer cutter holder (17) is performed by regulating means provided between the outer cutter holder (17) the outer cutter frame (19), with respect to further downward regulation The electric shaver according to any one of claims 3 to 6, characterized in that the shaving is also performed by an abutting engagement between the projection (22) and the notch (23) . The electric shaver according to any one of claims 2 to 7, wherein the projection (22) is a plate-like piece formed of a member different from the outer cutter frame (19) .

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