JPH0118147Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention relates to an electric shaver equipped with a razor blade unit that can be moved in and out and an opening for discharging hair waste. This is an improvement to the operating knob that opens and closes the lid that closes the opening for discharging hair debris.

[Background technology]

If an electric razor has an opening for discharging lint that leads to the storage space for the inner blade, when washing it, tap water can be poured through the opening while driving the inner blade with the outer blade attached. It is convenient because you can wash away the hair particles attached to the inner blade and the hair particles accumulated on the hair receiving surface. Further, even without washing with water, hair can be swept out with a brush or the like through the opening.

Such an opening must be closed with a lid to prevent hair from flying out of the opening when the electric razor is in use, and the lid is generally opened and closed by an operating knob mounted on the outer surface of the razor body. Ru.

Furthermore, when the razor body is equipped with a sharpening blade unit that can be moved in and out, the operation of moving the sharpening blade unit in and out is also performed using the operating knob.

However, using separate operation knobs to open and close the lid and to move the sharpening blade in and out increases the number of parts and makes the operations very cumbersome.

[Purpose and outline of the idea]

Focusing on this fact, this invention has been developed to perform a step-by-step series of operations using a single operating knob to move the sharpening blade unit in and out and to open and close the lid that opens and closes the lint discharge opening. To improve usability by making it possible to do this and protruding a sharpening blade unit with a lid closed. Next, the details will be explained based on the illustrated embodiment.

〔Example〕

The drawings illustrate an electric shaver driven by a rechargeable battery, and in FIGS. 1 and 2, the razor body 1 has a mesh-like outer blade 3 on the upper part of the main body case 2 and a vibrating blade in sliding contact with the razor body 1. A motor 5 and a rechargeable battery 6 (for example, a nickel-cadmium storage battery) for driving the inner blade are housed inside the main body case 2.

The main case 2 includes a main case 2a having a vertically elongated cylindrical shape, an inner case 2b that seals the upper end opening of the main case 2a via a gasket 7, and is connected to the upper part of the inner case 2b by bayonet connection or the like. an upper case 2c that is T-shaped when viewed from the front, and a bottom case 2d that seals the bottom opening of the main case 2a via a gasket 8.
It consists of As shown in FIG. 11, the main case 2a accommodates a motor 5, a rechargeable battery 6, a switch board 9 of a motor drive circuit, a switch connection plate 10, etc., and all components of the motor 5, battery 6, etc. is a front-view gate-shaped holder 1 in advance.
1 is dropped into the main case 2a from the upper end opening and is housed therein.

In FIG. 2, an opening for operating a switch is formed in the upper front surface of the main case 2a, and a drive system switch means 12 is mounted in this opening. The switch means 12 includes a rubber gasket 13 in the form of a thin film that is expandable and deformable to completely seal the opening to prevent water from entering the case through the opening, and a rubber gasket 13 in the form of a thin film that can be freely expanded and deformed. A fixed switch panel 14 is pressed against the edge of the opening from the outside of the case, and a switch button 1 is attached to the outer surface of the switch panel 14 so as to be able to slide up and down.
It consists of 5. The switch button 15 is connected to the switch connecting plate 10 together with a part 13a of the switch fitting 13. When the switch button 15 is slid up and down through the expansion and contraction deformation of the switch fitting 13, the switch connecting plate 10 moves up and down. to open and close the motor drive circuit.

The bottom case 2d has a downwardly opening recess 16, and a plug blade 17 protruding from the bottom of the recess 16 into which a charging plug is inserted and removed. This recess 1
A gas vent hole 18 is provided at the bottom of the gas vent hole 18 so as to pass through the inside and outside of the case, and a valve stem 19 with a valve seat 19a can be moved in and out of the gas vent hole 18 via a ring gasket 20, but is prevented from falling downward. Insert the
The free end of the leaf spring 21, one end of which is fixed inside the bottom case 2d, biases the valve stem 19 so that its lower end always protrudes downward, so that the valve seat 19a of the valve stem 19 always closes the gas vent hole 18. are doing. When charging the battery 6, insert the charging plug into the plug blade 1 in the recess 16.
At the same time as the plug is inserted into the main case 2a, the plug pushes up the valve stem 19 toward the inside of the case, allowing gas generated from the battery 6 due to overcharging to pass through the gas vent hole 18 to the case without increasing the internal pressure of the sealed main case 2a. It is discharged to the outside to prevent case deformation and switch contact failure due to increased internal pressure.

In FIGS. 2 and 6, the upper end surface of the upper case 2c of the main body case 2, which opens in the forward tilted state, is closed by a case lid 22, and the upper surface of the case lid 22 serves as a hair receiving surface 23. The vibrator 25 inside the upper case 2c is exposed through the central opening 24 of the hair receiving surface 23.
A drive shaft 25a integral with the drive shaft 25a projects upward in a forward-inclined state, and the inner cutter 4 is attached to the drive shaft 25a via an inner cutter holder 26. The gap between the central opening 24 of the hair receiving surface 23 and the drive shaft 25a is sealed with a hair stopper 27. The vibrator 25 receives the rotation of the motor 5 via the eccentric cam 28 and vibrates in the left-right direction.
This causes the inner cutter 4 to reciprocate in the same direction via the inner cutter holder 26. Case lid 2 on the top of main body case 2
An outer cutter holder 29 for holding the outer cutter 3 is provided on the outer periphery of the outer cutter 2.
are removably fitted from above, and the inner cutter 4 is in sliding contact with the inner surface of the outer cutter 3.

In FIGS. 7 and 8, the outer blade holder 29
An inner cutter 4 is provided on the left and right side walls 29a, 29a facing each other.
Openings 30, 3 for discharging hair waste leading to the storage space of
0 and left and right side walls 29a, 29a.
A lid 31, 31 is pivotally attached to each outer surface side of the opening 30, and each opening 30 is opened and closed by each lid 31. Each lid 31 has bearing pieces 32, 32 protruding inward on both sides of the lower end, and a pivot 33 inserted between the bearing pieces 32, 32.
It is integrally attached to the outer cutter holder 29 so as to rotate outward by 90 degrees from the closed state to open, and is always urged to close by a spring 69 on the pivot shaft 33.

2, 6, and 9, left and right horizontally elongated opening frames 35 are integrally formed on the rear side of the case lid 22, and left and right shaft holes 36, 36 inside the opening frame 35 are integrally formed.
Pivot shafts 38, 38 protruding from both left and right sides of the edge cutting blade unit 37 are engaged with each other, and the edge cutting blade unit 37 is equipped so as to move forward and backward by rotating around the pivot 38. The edge cutting blade unit 37 has a comb-shaped fixed blade 40 and a movable blade 41 whose front ends protrude downward, respectively, in a holder 39, and an engagement piece 42 is provided protruding from the center of the rear end of the movable blade 41. , this engagement piece 42 is removably linked to the edge cutting blade drive piece 43 inserted and engaged on the drive shaft 25a. That is, when the edge cutting blade unit 37 is in the retracted state, the engagement piece 42 is disengaged from the edge cutting blade drive piece 43, and when the edge cutting blade unit 37 is in the protruding state, the engagement piece 42 is engaged with the piece 43. match. Note that this drive piece 43 is equipped with a spring 44 that pushes up the inner blade holder 26 on the drive shaft 25a.
It is always pushed down and biased.

In FIG. 3, the rear wall 34 of the main body case 2 is formed in a dogleg shape in cross section, and has an inclined wall 34a and a vertical wall 34b connected to the lower end of the inclined wall 34a, and an operation opening 45 in the vertical wall 34b. As shown in FIG. 9, an elastic moderation plate 46 having a slot 46c with two upper and lower locking protrusions 46a and 46b is fitted and fixed into the operating opening 45.
An operating knob 47 is mounted on the outer surface of the moderation plate 46 so as to be elastically slidable and engageable from a lower standby position to two upper positions. That is, the operation knob 47 has a locking pin 55 on the inner surface, and the locking pin 55 is inserted into the slot 46c, and as shown in FIG. from the lower standby position a to the intermediate position b between the upper and lower locking protrusions 46a and 46b,
Furthermore, it reaches the position c above the upper locking protrusion 46a.
It can be slid in a moderate manner over stages, and vice versa, it can also be slid in a moderate manner in the downward direction.

The operation knob 47, the lid 31 for discharging hair waste, and the sharpening blade unit 37 are interlocked and connected via an interlocking mechanism 48, and the distance that the operation knob 47 moves from the lower position a to the intermediate position b is fixed. That is, in the first stroke, the sharpening blade unit 37 protrudes through the interlocking mechanism 48, and the distance it moves from the intermediate position b to the upper position c, that is, in the second stroke, the same interlocking mechanism 48 is used to remove hair waste. lid 31
opens.

In FIG. 9, the interlocking mechanism 48 consists of a slide plate 49, a lid opening/closing lever 50, and a sharp edge unit lever 51.

The slide plate 49 includes a substrate 49a having knob coupling holes 52, 52, 53 on the left and right sides and the center, and
A connecting plate 49b, which is a flexible and deformable thin plate having a through hole 54, is integrally formed on the upper end of the connecting plate 9a, and bearings 49c, 4 are formed on the left and right sides of the upper end of the connecting plate 49b.
It consists of 9c. This slide plate 49 is connected to the vertical wall 3 of the rear wall 34 of the upper case 2c as shown in FIG.
The locking pin 55 protruding from the inner surface of the operating knob 47 is inserted into the slot 46c of the moderation plate 46, and then inserted and coupled into the knob coupling hole 53 of the slide plate 49. , the coupling protrusions 54, 54 protruding on the left and right sides of the locking pin 55 of the operating knob 47 are connected to the knob coupling holes 52, 52.
They are each inserted and connected in a way that prevents them from coming off.

In FIG. 9, the lid opening/closing lever 50 has a bearing 49 on the slide plate 49 at the lower end of its base plate 56.
integrally forming a pivot 57 pivotally connected to c, 49c;
L-shaped lid push-up portions 58, 58 are formed on the left and right sides of the upper end of the substrate 56.
On the left and right inside surfaces, there is a sharp blade unit egress lever 5
A box-shaped connecting portion 59 having a recessed portion 59a connected to the connecting portion 1 is formed. Left side recess 59a
is open on the left outer side and lower side, and the right side recess 59
A is open on the right outer side and lower side. The lid opening/closing lever 50 is arranged vertically movably above the slide plate 49 on the inner surface of the inclined wall 34a of the rear wall 34 of the upper case 2c, as shown in FIG. 3, and as shown in FIGS. 6 and 7. The left and right lid push-up parts 58, 58 face the left and right openings 60a, 60a provided in the case lid 22, and are located directly below the bearing pieces 32, 32 of the left and right lids 31, 31 in the closed state.

In FIG. 9, the sharp edge unit lever 51 consists of a support shaft 61 and Z-shaped arms 62, 62 extending rearward at right angles from the left and right ends of the support shaft 61. Unit locking pins 63, 63 are provided at the distal ends of the arms 62, respectively, to protrude outward, and connecting pins 64, 64 are provided on the inner surfaces of the intermediate portions of the arms 62, 62, respectively, to protrude inward. As shown in FIGS. 3 and 6, the left and right ends of the support shaft 61 are received and supported by left and right bearings 65, 65 formed on the inner surface of the front wall of the upper case 2c, so that the lever 51 can freely move in the front-back direction. Moreover, the connecting pins 64, 64 are engaged and connected to the recesses 59a, 59a of the connecting parts 59, 59 of the lid opening/closing lever 50 so as to be freely movable in the front and rear directions, and the left and right arms 62, 62 protrudes upward from the left and right openings 60b, 60b of the case lid 22, and the unit locking pins 63, 63 engage the pivots 3 of the left and right side walls 39a, 39a of the holder 39 of the sharp edge unit 37.
Locking holes 66, 6 provided at positions offset from 3, 33
6 is involved.

And the sharp blade unit egress lever 51 is
A coil spring 67, which is generally U-shaped in plan view as shown in FIG. 10, is always biased so that the left and right arms 62, 62 swing upward around the support shaft 61. That is, as shown in FIGS. 3 and 6, the coil spring 67 has a proximal end 67a engaged with and fixed to the spring receivers 68, 68 of the upper case 2c, and a distal end 67b.
are abutted and engaged with the lower surfaces of the left and right arms 62, 62 of the lever 51. When the lever 51 swings upward around the support shaft 61, the unit locking pins 63, 63 project and rotate the sharp edge unit 37 around the pivot 38, but under normal conditions, the connecting pins 64, 64 are Connecting portion 5 of lid opening/closing lever 50
Since the recesses 59a and 59a of 9 and 59 are in contact with each other to prevent upward movement, the sharp edge unit 3
7 is held in a retracted state.

Now, if the operation knob 47 is slid upward by the first stroke from the lower standby position a to the intermediate position b, the slide plate 49 will move as shown in FIG.
The thin connecting plate 49b moves upward while being flexibly deformed along the inner surface of the inclined wall 34a, thereby pushing the lid opening/closing lever 50 upward. As the lid opening/closing lever 50 moves upward, the connecting portion 59 that restricts the upward movement of the connecting pin 64 moves upward, so that the edge blade unit ejection/retraction lever 51 is moved above the bearing 65 by the biasing force of the spring 67. and swings upward around the support shaft 61 while moving forward within the recess 59a. By swinging this lever 51, the unit locking pins 63, 63
The scraping blade unit 37 is rotated 90 degrees upward around the pivot 38 to project to the rear of the opening 35. Conversely, when the operating knob 47 is returned from the intermediate position b to the original standby position a, the lid opening/closing lever 50 is pulled down via the slide plate 49, and at the same time the connecting portion 5
9 and 59 push down the connecting pins 64 and 64. Therefore, the sharp edge unit ejection lever 51 is swung downward around the support shaft 61, and this swing causes the unit locking pins 63, 63 to move the sharp edge blade unit 37 downward around the pivot 38. Rotate it 90 degrees to bring the sharp edge unit 37 into the retracted state.

When washing the inner blade storage space with water or sweeping out hair, move the operating knob 47 to the lower standby position a.
From intermediate position b to upper position c (first stroke), and further upward from intermediate position b to upper position c (second stroke). During the first stroke, the edge cutting blade unit 37 protrudes as described above, and during the second stroke, the lid opening/closing lever 50 further moves up via the slide plate 49 as shown in FIG. Due to this rise, the connecting portion 59 moves to the connecting pin 6.
As the lid comes off upward from 4, the lid pushing up part 5
8 and 58 simultaneously push up the portions of the lower surfaces of the left and right bearing pieces 32 and 32 that are offset from the pivot 33, the left and right covers 31 and 31 simultaneously rotate 90 degrees outward around each pivot 33, as shown in FIG. Move to open. When the left and right lids 31, 31 are completely opened, the lid thrusting parts 58, 58 are in a rotation-preventing state where they come into contact with the lower surfaces of the bearing pieces 32, 32, and the lid 31 is held by the spring 69.
It will not close unexpectedly due to force. When the operation knob 47 is returned from the upper position c to the intermediate position b, the lid opening/closing lever 50 is lowered by the sliding plate 49, so that the lid pushing up parts 58, 58 are moved by the bearing pieces 3.
At the same time as the left and right lids 31, 31 are separated downward from the lower surfaces of 2, 32, the left and right lids 31, 31 are moved to each pivot 33 by the force of each spring 69.
The openings 30, 30 are closed by rotating 90 degrees in the opposite direction to that described above. Furthermore, when the operating knob 47 is returned from the intermediate position b to the lower standby position a, the edge cutting blade unit 37 retracts, as described above.

[Another example]

In the above embodiment, the rear wall 34 of the upper case 2c is formed into a dogleg shape in cross section, and the operation knob 47 is arranged on the outer surface of the vertical wall 34b, and the lid opening/closing lever 50 is arranged on the inner surface of the inclined wall 34a, so that the upper case 2c can be slid up and down. Due to its flexible structure, the slide plate 49 is required to be flexible and deformable. However, when the operation knob 47 and the lid opening/closing lever 50 are both slidably assembled on the straight wall surface of the main body case 2, the slide plate 49 is required. It is sufficient to omit this and connect the operation knob 47 to the lid opening/closing lever 50 as is.

The opening 30 for discharging hair debris may be formed only on either the left or right side.

The interlocking mechanism 48 includes the lid opening/closing lever 50 and the sharp blade unit ejection/retraction lever 5 of the above embodiment.
A link mechanism other than the combination described in 1 may be used. In other words, the operating force of the first stroke of the operating knob 47 causes the skidding blade unit 37 to protrude, and the operating force of the second stroke opens the lid 31. Any mechanism is fine.

The operating force for the second stroke to open the lid 31 is set to be greater than the operating force for the first stroke of the operating knob 47 to protrude the edge blade unit 37,
For example, the gap between the upper locking protrusions 46a, 46a may be set smaller than the gap between the lower locking protrusions 46b, 46b of the moderation plate 46 through which the locking pin 55 of the operating knob 47 is inserted. For example, it is possible to reliably prevent an erroneous operation in which the cover 31 is accidentally opened when the edge cutting blade unit 37 is projected.

[Effect of idea]

As explained above, according to this invention, the sharp cutting blade unit 37 can be adjusted by a simple series of operations in which one operation knob 47 is slid in two steps.
It is easy to use because it is possible to move in and out of the hair removal opening 30 and to open and close the lid 31 of the hair waste discharge opening 30. Moreover, the first stroke of the operating knob 47 causes the edge cutting blade unit 37 to protrude, and the second stroke opens the lid 31. In other words, unless the edge cutting edge unit 37 is projected, the lid 31
1 is designed to prevent it from opening, so the lid 31 can be kept closed at all times, and hair debris will not fly out from the opening 30. Also, the lid 31
Since the edge cutting blade unit 37 always protrudes when the case is opened, there is no need to forget to clean the edge cutting blade unit 37 even when cleaning lint.

[Brief explanation of drawings]

The drawings illustrate the electric shaver according to the present invention, and FIG. 1 is an overall external perspective view, FIG. 2 is an overall vertical side view, FIG. 3 is an enlarged vertical side view of the upper part, and FIG. FIG. 5 is a vertical side view showing the protruding state of the sled blade unit, FIG. 5 is a vertical side view with the lid of the lint discharge opening opened, FIG. 6 is an enlarged cross-sectional plan view of the upper part, and FIG. FIG. 8 is a longitudinal sectional front view of the upper part with the lid closed, FIG. 9 is an exploded perspective view of the main parts,
FIG. 10 is a perspective view of the coil spring, and FIG. 11 is a perspective view showing parts assembled to the main body case, such as a motor and a battery. 1... Razor body, 3... Outer blade, 4... Inner blade, 30... Opening for hair waste discharge, 31... Lid,
37... Kiwazori blade unit, 47... Operation knob, 48... Interlocking mechanism.

Claims (1)

[Claims for Utility Model Registration] (1) A razor body 1 having an opening 3 for discharging hair waste, which has an outer cutter 3 and an inner cutter 4 that comes into sliding contact with the inner surface of the outer cutter 3;
0 is formed, the opening 30 is closed with a lid 31 that can be rotated to open and close around a pivot 33, and a razor blade unit 37 is attached to the razor body 1 around a pivot 38.
In an electric shaver that is equipped to be moved in and out by rotation, an operation knob 47 is slidably mounted on the outer surface of the razor body 1, and the first stroke of the operation knob 47 activates the razor blade unit. 37 and an interlocking mechanism 48 for opening the lid 31 in a second stroke following the first stroke. (2) Utility model registration claim 1 in which the force required to operate the second stroke of the operating knob 47 is set to be greater than the force required to operate the first stroke.
Electric shaver as described in section.