JPS612885A - Electric razor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an electric razor having a head case having inner and outer cutters that can be swung back and forth.

[Conventional technology]

Conventionally, in electric shavers, when not in use.

For compact storage, the head case with the inner and outer blades can be placed in an upright position so that it is almost in a straight line with the main body case, and when in use, the outer blade can be easily applied to the skin, making it easy to use. There is a swing type head case that allows the head case to tilt.

[Problem that the invention seeks to solve]

However, this type of conventional swing-type electric razor,
In general, the head case, which has internal and external blades, is held directly in the hand and operated by swinging, so when swinging the head case, the head case
When using the device, the main body case must be changed in each hand, making the operation cumbersome.

This invention focuses on this fact, and when in use, the main body -
The purpose of the present invention is to enable the user to easily swing the head without changing his or her grip while holding the head firmly and firmly.

[Means to solve the problem]

In order to achieve the above object, in this invention, an operating button that can be operated by swinging is mounted on one main body case l, and the operating button takes the form of a punch operation that appears in and out of two main body cases. The position is set on the front surface of the main body case in the same direction as the tilting direction of the main body case.

〔Example〕

The drawing shows an embodiment of an electric shaver according to the present invention.

(Body case structure) In Figs. 1 to 6, two main body cases 1 are formed by abutting front and rear plastic cases 1a and 1b and integrally connecting them with screws 2, etc. to form a rectangular cylindrical shape. A mounting base 3 is fixed to the upper part, and the head case 4 is mounted on the upper part of the mounting base 3 in an upright position in which it is substantially in a straight line with respect to the main body case 1 and in a forward tilted position in which it is tilted toward the front side of the main body case l. It is pivotally connected around a shaft 5 so as to be freely swingable.

Specifically, as shown in FIG. 4, shafts 5, 5 protruding from the left and right ends of the mounting base 3 are rotatably inserted into shaft holes 6, 6 recessed in the left and right inner surfaces of the head case 4. At the same time as fitting, the mounting base 3
The engaging elements 10 and 10 provided on the left and right inner surfaces of the head case 4 are selectively inserted into one of the holes 8 and 9 provided at the front and rear of the elastic moderation plates 7 and 7 that are installed upright at the left and right ends of the head case 4. By engaging with the two-head case 4, the positions of the two-head case 4 are regulated into an upright posture (see FIG. 1) and a forward-inclined posture (see FIG. 2).

(Inner blade drive mechanism) In FIGS. 4 and 5, a plastic vibrating body 11 that elastically swings and deforms in the left-right direction is installed inside the head case 4, and the vibrator 11 is located at the center of the upper end surface. The central opening 13 of the head case 4 is
protrudes upward from.

An inner cutter 14 is attached to this bottle 12 via an inner cutter holder 15. On the other hand, inside the main body case 1, the motor 18
is interposed and fixed between the mounting base 3 and the motor lower end support 94, the motor shaft 18a projects upward from the opening 19 of the mounting base 3, and an eccentric cam 21 having an eccentric bin 20 is fixed to this projecting end. 20 engages with a longitudinally long groove 24 provided on the lower surface of the slider 23, which is slidably engaged with a recess i@22 provided on the lower surface of the vibrating body 11 in the longitudinal direction. In such a case, the eccentric cam 21 is rotated by the drive of the motor 18, and the slider 23 that engages with the eccentric pin 20 of this cam 2I reciprocates from side to side, vibrating the vibrating body 11 in the same direction. The inner cutter 14 vibrates back and forth from side to side due to the vibration.

Between the overlapping surface of the inner upper surface of the head case 4 and the vibrating body 11, there is a rubber member that closes the gap between the central opening 13 of the head case 4 and the bottle 12 that penetrates thereto to prevent hair from entering. A fixing plate 26 made of a relatively heavy material such as mild steel or brass, which presses and fixes the bristle stopper plate 25 to the head case 4, is interposed and fixed. In such a case, since the weight of the head case 4 is increased by the fixing plate 26 which exhibits a weight function, vibrations are suppressed during use, and propagation to the main body case 1 can be reduced as much as possible.

(Means for mounting the outer cutter) In FIGS. 4 and 5, a mesh-shaped outer cutter 16 is removably fitted to the head case 4 via an outer cutter holder 17, and is attached to the inner surface of the outer cutter 16. The inner blade 14 makes sliding contact. The outer cutter holder 17 has means for maintaining the attached state to the head case 4. Specific examples of the mounting and holding means include a moderation plate 7 and an engaging element 1 used for regulating the swinging position of the two-head case 4.
Use 0. That is, the engagement button 28 is fitted into the opening 27 formed in the left and right side walls of the case 4 in the 1wi section so as to be movable in the case inward and outward direction and to prevent it from coming out in the case outward direction.
The engagement element 10 is fixedly protruding from the inner end surface of the engagement button 28, and the outer end surface 28a of the engagement button 28 is formed to have a mountain-shaped cross section.

The engagement button 28 is urged to protrude by the elasticity of the moderation plate 7, and the retaining recesses 29 formed on the inner surfaces of the left and right side walls of the outer blade holder 17 engage the outer end surface 28a of the engagement button 28.
It can be freely engaged and detached as the outer cutter holder 17 is attached and detached.

(Interior parts to main body case) In FIG. 6, inside the main body case 1, in addition to the motor 18, there is a first battery 30, which is used when supplying power to the motor 18. A spare second battery 31° and a pressed circuit board 32 for use when the capacity of the first battery 30 decreases.
is built-in. The first battery 30 and the second battery 31 may be either storage batteries or dry batteries, and it does not matter whether they can be recharged or not. 5 on the pressed circuit board 32
Inner blade drive switch 3 that opens and closes the energizing circuit to the motor 18
3, and the first battery 3 in a steady state to supply electricity to the motor 18.
0 to the second battery 31 side, and a transformer 35. In addition, a contact plate 37 and the like that open and close the charging circuit when the charging plug 36 is moved in and out is assembled. FIG. 17 shows the electrical circuit.

(Swing operation mechanism and inner blade drive switch on/off mechanism) On the front outer surface of the main body case 1, which is on the same side as the tilting direction of the head case 4 in FIG.

Push-type first operation button 38 and second operation button 39
are arranged side by side on the left and right, and when the inner blade drive switch 33 is turned on by pushing the first operation button 38, the first head case 4 changes to a forward tilted posture, and the second operation button 3
At the same time as the inner blade drive switch 33 is turned off by the push operation of 9.

The head case 4 returns to the upright position.

Specifically, in FIGS. 5 1 to 4 and 7 to 9, there is a seesaw plate 40 inside the main body case 1 corresponding to the first operation button 38 and the second S operation button 39.
is placed. The seesaw plate 40 is bent into a dogleg shape, and the fulcrum part 40a, which is the bent part at the center, hangs downward from the mounting base 3 and is supported on the protruding support base 41 of the main body case 1. It is placed on a plate 42, and a first operating button 38 is mounted on one end 40b of the fulcrum 40a, and a second operating button 39 is mounted on the other end 40C.

By alternately pushing the first operation button 38 and the second operation button 39, one end 40b and the other end 40c are alternately moved back and forth (see-saw movement). and.

A switch operating piece 43 is formed at the tip of one end 40b on which the 11' 1st operation button 38 is attached to extend to the position of the inner blade drive switch 33, and the other end 40c on which the second operating button 39 is attached. A swinging operation piece 44 is formed at the tip, and the operating piece 44 is linked to the head case 4 via a swinging plate 45. The oscillating plate 45 is formed in a generally triangular shape, and the shaft 4 is mounted on a bearing 95 near the right side wall 46 of the main body case 1.
7, and its front end beveled edge 48
A bottle 49 is provided protruding from the lower end of the shaft 47.

This bottle 49 is engaged with an elongated hole 50 formed vertically in the neck 1-joint operation piece 44, and the same front end bevel 48
A bottle 51 is also protruded from the upper end of the shaft 47, and is engaged with a long hole 53 of a lever 52 which projects downward from the right end of the head case 4.

In such a case, the seesaw plate 40 is moved to the first position as shown in FIG.
When the operation button 38 is pushed, one end 40b moves backward and the other end 40C moves forward, the switch operation piece 43 contacts the inner blade drive switch 33 and turns it on, and at the same time the two The swing plate 45 has a long hole 50
Through engagement with the pin 49, the head case 4 is swung around the shaft 47 in the direction indicated by the arrow in FIG. At this time, the engager 10 of the two-head case 4 falls into one hole 8 of the moderation plate 7 shown in FIG. 6 and engages with it, so that the position of the gJ1 part case 4 is restricted to the forward tilted position shown in FIG. 2. At the same time, the seesaw board 40
The tilted posture in which the switch is turned on is maintained via a swing plate 45 that connects the seesaw plate 40 and the head case 4.

As shown in FIGS. 1 and 8, the seesaw plate 40
When the operation button 39 is pushed in the opposite direction, the switch operation piece 43 turns off the inner blade drive switch 33.

At the same time, the swing plate 45 swings around the shaft 47 in the opposite direction to return the head case 4 to the upright position around the shaft 5 (see Fig. 1). As the case 40 rotates, the engagement element 10 comes off from the hole 8 through the inward elastic deformation of the moderation plate 7, slides on the outer surface of the moderation plate 7, falls into another hole 9, and engages with it. head case 4
The upright position and the tilted position in which the seesaw board 40 is switched off are maintained.

In the illustrated example, the oscillating plate 45 is also provided with moderation means for regulating the position of its oscillating angle. Namely.

As shown in FIGS. 8 and 9, an elastic moderation plate 55 having an engager 54 is provided upright on the main body case 1 side.

One of the slopes 56a and the other slope 56b of a protrusion 56 with a mountain-shaped cross section provided on the swing plate 45 can be freely engaged with and disengaged from the retainer 54 as the swing plate 45 swings, thereby forming one swing plate. 45 is regulated to a first swing angle position where the head case 4 is in a forward leaning position and a second swing angle position where the head case 4 is in an upright position.

In FIGS. 1 and 8, the first operation button 3B and the second operation button 39 are each formed by overlapping inner and outer disks 57a and 57b with two dish-shaped cross sections, and the inner disk 57
The clawed leg 58 protruding from the center of a is inserted into the button mounting hole 59 drilled in the seesaw plate 40 in a locking manner and engaged, and the upper end arcuate surface 60a of the claw 60 of the clawed leg 58 and the outer circular plate. It is attached to the seesaw plate 40 by sandwiching the periphery of the button mounting hole 59 of the seesaw plate 40 between a semicircular projection 61 protruding from the inner surface of the seesaw plate 57b (see FIG. 15). As a result, the first operation button 38 or the second operation button 3
9 moves straight in and out of the case under the guidance of the button hole 62 on the main body case 1, but when the seesaw plate 40 moves back and forth (seesaw movement) and tilts, each button 38 and 3
9 can smoothly escape from the inclination of the seesaw plate 40 without rattling in the front-back direction.

As shown in FIG. 9, the outer disc 57 of each button 38, 39
A portion of the periphery of b is placed against a button receiver 64 provided at the inner end of the button hole 62 of the main body case l, thereby regulating the amount of depression of each button.

(Lock Means) A lock means is provided to prevent the head case 4 from swinging inadvertently or the inner blade drive switch 33 from being turned on when the first operation button 38 is pushed during carrying, storage, or storage. 1 and 7, the lock means includes a lock button 65 on the outer surface of the right side wall 46 of the main body case 1 so as to be slidable in the vertical direction, and the lock button 65 has a lock pin 66 on the inner surface thereof. When the lock pin 66 is in the high position, the lock pin 66 touches the front end bevel 48 of the swing plate 45.
It is located at a lower position than the upper shaft 47.

Even if the first operation button 38 is pushed, the swing plate 45
If you slide the lock button 65 downward, the lock pin 66 will come off the front beveled edge 48 of the swing plate 45, and when the first operating button 38 is pushed, the lock pin 66 will move through the seesaw plate 40 and lock the neck. The swing plate 45 can swing as described above.

(Battery switching means) On the front outer surface of the main body case 1, FIG.

In FIG. 7 and FIGS. 10 to 12, below the first and second operation buttons 38 and 39, a third operation button 67 of the Bousonyu type is provided.

A switching plate 68 is disposed inside the main body case corresponding to the third operation button 67. The switching plate 68 is disposed on the fixed terminal of the changeover switch 34 so as to be slidable in the vertical direction, has an inclined surface 69 on a part of its front side, and has a movable terminal 70 on its rear side.

The third operation button 67 has a leg portion 72 having a slope 71, and when the third operation button 67 is pushed, the slope 71
When the switching plate 68 slides downward on the slope 69, the movable terminal 70 contacts the fixed terminal of the changeover switch 34, thereby switching from the first battery 30 in the steady state to the second battery 31 side. However, this switching operation is impossible when the two-head case 4 is in an upright position, and becomes possible when the single-head case 4 is in a forward-leaning position.

Further, when the five-head case 4 is returned from the forward tilted position to the upright position, the state is switched to the first battery 30 side in a steady state.

That is, specifically, a switching lever 73 is arranged between the switching slope 68 and the swing plate 45, and the switching lever 73 has a four part 74 at the upper end of the lever main body, and the switching lever 73 has a four part 74 at the upper end of the lever main body.
4 is engaged with an engaging element 75 protruding from the lower edge of the oscillating plate 45, and the lever body has an engaging stepped portion 76 at the lower end and side portion thereof, and is switched to the engaging stepped portion 76. The engagement step portion 77 provided on the upper end and side portion of the plate 68 is engaged. When the head case 4 is in the upright position, the engagement step 76 of the switching lever 73 and the engagement step 77 of the switching plate 68 are engaged.

Therefore, even if the third operation button 67 is pushed at this time, the switching plate 6B cannot be slid downward, making it impossible to switch to the second battery 31 side. However, when the first operation button 38 is pushed and the inner blade drive switch 33 is turned on via the seesaw plate 40, the oscillating plate 45 swings and the head case 4 assumes a forward tilted position. The swinging of the swing plate 45 causes the switching lever 73 to slide downward via the engaging element 75, and its engagement step 76 is spaced downward from the engagement step 77 of the switching plate 68. At this time, the switching plate 68 can be slid downward for the first time. 6 Therefore, if the third operation box 67 is pushed at this time, the switching plate 68 will be moved to the slopes 69 and 7.
1 and slides downward to switch the changeover switch 34 to the second battery 31 side. When the second operation button 39 is pushed in the switching state to the second battery 31 side, the switching lever 73 slides the switching plate 68 upward via the seesaw plate 40.

With this, the switching plate 68 is returned to its original position, and
The third operation button 67 protrudes through the contact action of the slopes 69 and 71.

(Operating Mechanism for Extending and Retracting the Edge Blade) In FIGS. 13 to 15, the edge blade unit 80 moves in and out around the shaft 81 in the opening 79 opened at the upper end of the rear case 1b of the three-body case 1. Can be installed freely. When the edge cutting blade unit 80 is in a protruding state, the engaging piece 82 protruding from the rear of the edge cutting blade unit 80 engages with the groove 83 formed in the slider 23, and the edge cutting edge unit 80 is moved horizontally by the slider 23. The movable blade 80a of the sledding blade unit 80 slides left and right with respect to the fixed blade 80b. When the edge cutting blade unit 80 is in the retracted state, the engaging piece 82 is removed from the groove 83 of the slider 23.

This edge blade unit 80 has a edge movement button 85 mounted on the outer surface of the left side wall 84 of the main body case 1.
Enter and exit by sliding the button.

Specifically, within the main body case I, a swing plate 86 and a diagonal lever 87 are arranged between the diagonal blade unit 80 and the diagonal extension/retraction operation button 85. The swing plate 86 is swingable around a shaft 88, and the bin 90 of the egress/exit operation button 85 slides from the shaft 88 into a recess 89 at the front end.
Further, the recesses 91 at the lower end of the edge lever 87 are engaged with the rear end knobs 94, respectively.5 The hook portion 92 at the upper end of the edge lever 87 is connected to the left shoulder portion 9 of the edge edge blade Uniso 1-80.
3. When the edge button 85 is moved upward, the swing Fj, 86 swings, causing the edge lever 87 to move downward. This downward slide causes the hook portion 92 to stand out on the peripheral portion 9 of the blade unit 80.
3 is pulled down, and the skiving blade unit 80 protrudes and rotates around the shaft 81. When the edge button 85 is moved downward in the opposite direction, the edge lever 8 is moved through the swing plate 86.
7 slides upward, the hook portion 92 pushes up the shoulder portion 93, and the blade unit 80 moves in and out around the shaft 81.

[Another example]

In the above embodiment, there are two first and second operation buttons 38.
- The head case 4 can be freely switched between a forward leaning position and an upright position by pushing the button 39; however, the present invention is not limited to this; 4 can be freely switched between a forward leaning position and an upright position. In this case, 1For example,
When the 1st I operation button 38 is pressed inward of the main body case 1, the head case 4 is tilted forward, but it does not return to its original position even after releasing the button, and when pressed again, it returns to its original position. The head case 4 may be returned to an upright position.

〔Effect of the invention〕

As explained above, according to the present invention, 1 body case 1
An operation button is attached to the top, and the head case 4 can be swung by operating the operation button, making it easy to operate the head case 4.Moreover, the operation button is a push operation type that makes it appear and retract from the two main body cases 1. 9 is positioned on the front outer surface of the main body case l in the same direction as the tilting direction of the head case 4, so when in use, the hand holding the main body case 1 can be kept in the same position and the head can be swung without changing the grip. The head case 4 can be immediately brought to a ready position for use, and after use, the head case 4 can be returned to the upright position without having to change hands, making it extremely convenient to use. In particular, when pushing the operation button, the body case 1 must be strongly gripped with the fingers, so it can be used while being firmly gripped, which is extremely convenient for use.

[Brief explanation of the drawing]

The drawings show an embodiment of the electric shaver according to the present invention, and FIG. 1 is a cross-sectional view of the main part with the head case in an upright position, and FIG. 2 is a cross-sectional view of the main part with the head case in a forward tilted position. 3 is a perspective view of the overall appearance, 4 is a longitudinal front view, 5 is a longitudinal side view, 6 is an exploded perspective view of the entire structure, and 7 is a swinging operation. An exploded perspective view of the system. Figure 8 is a sectional view showing the first operation button and seesaw plate part with the second operation button pushed. Figure 9 is a cross-sectional view showing the 1st FIJ 1 operation button and scene board part when the first operation button is pressed. The sectional view shown in the pushed state, Figure 10, is the third section of the battery switching operation system.
A front view showing the arrangement of the operation button, the switching plate, and the switching lever; Figure 11 is a sectional view showing the state before the third operation button is pushed; and Figure 12 shows the state with the third operation button pushed. A cross-sectional view, FIG. 13 is an exploded perspective view of the egress/retraction operation system of the edge-to-edge blade unit, FIG. 14 is a sectional view of the edge-to-edge blade unit and its egress/egress operation button, and FIG. 15 is the edge-to-edge edge unit. FIG. FIG. 16 is a partial sectional view of the first and second operation buttons, and FIG. 17 is an electric circuit diagram. ■・・・Body case. 1a...Previous case. lb... rear case. 4...Head case. 5... Axis. 14...Inner blade. 16... Outer blade. 38...First operation button. 39...Second operation button. 40... Seeso slope. Inventor Fumi Suzuki Figure 2 Figure 3 'j! l! Figure 12

Claims (2)

[Claims] (1) Consisting of a main body case 1 and a head case 4 having inner and outer blades 14 and 16, the main body case 1 and the head case 4 are
The head case 4 is pivotally connected to the main body case 1 so as to be rotatable around an axis 5 between an upright position in which it is substantially in line with the main body case 1 and a forward tilted position in which it is tilted toward the front side of the main body case 1. A push-type operation button is mounted on the outer surface of the case so as to be retractable in and out of the case, and the head case 4 is tilted forward in conjunction with the push operation of the operation button inward of the case. An electric razor featuring (2) The electric shaver according to claim 1, wherein the operation button also has the function of turning on a drive switch for the inner cutter 14.