JP2000288268A - Reciprocating type electric razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively perform a cleaning operation by increasing the relative sliding contact stroke of an inner cutting edge and a brush in a cleaning means for an electric razor mounted on a razor head for cleaning while driving the inner head. SOLUTION: A brush 17 is arranged in a holder 16 mounted on a razor head 4. The brush 17 is supported by a supporter 18 so as to be able to be reciprocally displaced. The reciprocating vibration of an inner cutting edge 5 is transmitted to the brush 17 by a transmitting mechanism 19 to drive the brush 17 in a reverse direction to the vibrating direction of the inner cutting edge 5. The transmitting mechanism 19 is composed of a lever mechanism to multiply the vibration of the inner cutting edge 5 and transmit it to the brush 17. The inner cutting edge 5 and the brush 17 are moved in reverse directions to each other and the reciprocating stroke of the brush 17 is multiplied, so that the sliding contact stroke of both the members is increased and an effective cleaning operation can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reciprocating electric shaver provided with a cleaning tool for cleaning an inner blade. This cleaning tool includes a brush that is driven reciprocally by utilizing the vibration of the inner blade.

[0002]

2. Description of the Related Art A cleaning tool in which a cleaning tool provided with a brush is mounted on a razor head and cleaning is performed while driving an inner blade is known from Japanese Utility Model Laid-Open No. 58-174068. Further, a cleaning tool for performing cleaning by rotating the inner blade by 90 degrees from a normal use position is disclosed in Japanese Utility Model Application Laid-Open No.
No. 0078 and Japanese Utility Model Laid-Open No. 60-151484. Each of them has a mounting frame which is press-fitted to the razor head, and a brush base orthogonal to the longitudinal side of the mounting frame, and a cleaning brush is implanted on a lower surface of the brush base.

[0003]

The brush in the conventional cleaning tool, except for the rotary brush, is fixed to the mounting frame or the holder, and the brush bristles in which the inner blade is stationary at the time of cleaning. By reciprocating with respect to the blade, shavings and the like attached to the blade are removed. In such a cleaning mode, the inner blade and the brush bristles only rub against the reciprocating vibration stroke of the inner blade. Incidentally, since the vibration stroke of the inner blade is only about 1 to 2 mm, the brush bristles need to be provided in a dense state corresponding to each blade, and the driving resistance at the time of cleaning increases accordingly. Since the contact impact between the inner blade and the brush bristle is small due to the small sliding contact stroke, it takes time to remove, for example, sebum or the like stuck to the blade.

An object of the present invention is to increase the sliding stroke between the inner blade and the brush by driving the brush in a direction opposite to the driving direction of the inner blade at the time of cleaning, so that the brush adheres to the blade of the inner blade. An object of the present invention is to enable effective cleaning of hair shavings, sebum and the like in a short time. SUMMARY OF THE INVENTION It is an object of the present invention to amplify the vibration stroke of the inner blade and transmit the amplified vibration stroke to the brush, increase the contact impact between the inner blade and the brush, and more effectively clean the inner blade.

An object of the present invention is to simplify a mechanism for driving a brush in a direction opposite to a vibration direction of an inner blade,
An object of the present invention is to provide a cleaning tool that actively performs cleaning at a lower cost. An object of the present invention is to perform cleaning in a state in which the inner blade is displaced in a direction orthogonal to the driving direction at the time of shaving, and therefore to perform cleaning of the inner blade more appropriately and effectively.

[0006]

According to the present invention, as shown in FIG. 2, a cleaning tool G having a brush 17 for cleaning the inner blade is detachably mounted on the razor head 4. Is in contact with the inner blade 5,
For a reciprocating electric shaver that performs cleaning while reciprocatingly driving. The cleaning tool G includes a holder 16 detachably mounted on the razor head 4 as shown in FIG.
, A brush 17 provided inside the holder 16, and a brush 1 provided between the holder 16 and the brush 17.
Support member 18 for supporting reciprocating displacement of brush 7 and brush 17
And between the inner blade 5 and the brush 1
And a transmission mechanism 19 for transmitting the transmission mechanism 7. The transmission mechanism 19
Is such that the vibration of the inner cutter 5 is converted into a direction opposite to the vibration direction of the inner cutter 5 and transmitted to the brush 17. The transmission mechanism 19 is configured by a lever mechanism, and can amplify the vibration stroke of the inner blade 5 so as to transmit the vibration to the brush 17. Further, the support 18 can also serve as the transmission mechanism 19.

The holder 16 is, as shown in FIG.
It comprises a base frame 20 mounted on the razor head 4 and a cap 21 rotatably supported on the base frame 20. Therefore,
The cleaning is performed by setting the inner blade 5 in a posture intersecting in a direction substantially orthogonal to the vibration direction of the vibrator 8. A water inlet 27 is provided on the peripheral wall of the cap 21 to allow the washing water to enter and exit.

[0008]

The brush 17 is supported by the support 18 so as to be reciprocally displaceable, and the brush 17 is driven by the transmission mechanism 19 in the direction opposite to the vibration direction of the inner blade 5. The sliding stroke can increase the vibration stroke of the inner blade 5 to one or more times. As the sliding stroke increases, the cleaning range of the brush 17 is expanded, and the sliding speed between the brush 17 and the inner blade 5 is increased to increase the contact impact. Therefore, according to the cleaning tool of the present invention as compared with the conventional example,
The shavings and sebum adhering to the blade can be effectively cleaned.

If the transmission mechanism 19 for transmitting the vibration of the inner cutter 5 to the brush 17 is constituted by a lever mechanism, the change of the vibration direction can be easily changed to the opposite direction, and the vibration stroke of the inner cutter 5 can be changed as necessary. It can be amplified and transmitted to the brush 17. This also helps to simplify the entire structure of the transmission mechanism 19. Therefore, the cleaning tool G can be manufactured at low cost.

When the vibration stroke of the inner blade 5 is amplified and transmitted to the brush 17, the sliding contact speed between the inner blade 5 and the brush 17 is further increased, and the contact impact between the two can be increased. Can be done The greater the sliding stroke, the smaller the density of the brush bristles 31 to be implanted, and the lower the driving resistance of the inner blade 5 during cleaning.

According to the cleaning tool G in which the brush 17 is reciprocally driven by the transmission mechanism 19 serving also as the support member 18, the overall structure can be simplified, the possibility of occurrence of a failure can be significantly reduced, and the cleaning tool G can be manufactured at lower cost. It can be manufactured by

When the holder 16 is composed of a base frame 20 and a cap 21 rotatably supported by the base frame 20,
After attaching the base frame 20 to the razor head 4, the cap 2
By rotating the nozzle 1, the inner blade 5 can be cleaned in a posture perpendicular to the vibration direction of the vibrator 8. In this cleaning state, the brush 17 and the blade of the inner blade 5 relatively slide along the surface wall of the blade, so that fuzz and sebum attached to the blade can be quickly and effectively cleaned.

If the cap 21 is provided with a water passage 27 so that the inner blade 5 can be washed not only by the brush 17 but also by a water washing action, sebum and fuzz that are difficult to drop can be more reliably cleaned. .

[0014]

1 to 6 show an embodiment of an electric shaver according to the present invention. In FIG. 2, the electric shaver has a main body 3 for housing a motor 1, a battery 2, and the like. The razor head 4 above the main body 3 is provided with an inner cutter 5 and an outer cutter holder 7 for holding the outer cutter 6 in an arch shape. After the rotational power of the motor 1 is converted into reciprocating vibration via the vibrator 8, it is transmitted to the inner blade 5 via the drive shaft 9 protruding from the upper surface of the vibrator 8. The inner blade 5 includes a group of blades 5a arranged in parallel, and a plastic base frame 5b for fixedly supporting the blade group. The base frame 5b is rotatably supported by a drive shaft 9, and Can slide up and down along the axis of. The inner cutter 5 is urged to slide toward the outer cutter 6 by a spring (not shown). In FIG. 2, a switch knob 11 for turning on and off a switch for starting a motor is provided on one side of the main body 3.

The razor head 4 is formed in a similar cross-sectional shape which is slightly smaller than the right and left laterally long rectangular cross-sectional shape of the main body 3, and an outer cutter holder 7 is mounted on the fitting portion 4a in an outer fitting manner. The engaging portion 7a of the outer blade holder 7 is retained and held by the lock claw 13. When the button 14 provided at the lower end of the lock claw 13 is pushed in against the urging force of the spring,
The engagement between the lock claw 13 and the outer blade holder 7 is released, and the outer blade holder 7 can be removed from the razor head 4.

In order to perform cleaning while driving the inner blade 5 back and forth, a cleaning tool G dedicated to cleaning is provided. 2 and 3, the cleaning tool G includes a holder 16, a brush 17 disposed inside the holder 16, a brush 1
And a transmission mechanism 19 for converting the vibration of the inner cutter 5 into a direction opposite to the vibration direction of the inner cutter 5 and transmitting the vibration to the brush 17.

The holder 16 comprises a base frame 20 mounted on the razor head 4 and a cap 21 supported so as to be able to rotate relative to the base frame 20. In FIG. 3, the base frame 20 is formed of a plastic frame body having a rectangular cross section with an open upper and lower surface, and is externally fitted to the fitting portion 4a.
On the inner surfaces of the left and right side walls of the base frame 20, the same engaging portions 23 as the engaging portions 7a of the outer cutter holder 7 are provided.
Is held by the lock claw 13 to maintain the mounted state. At the center of the upper end of the front and rear walls of the base frame 20, a partially arcuate guide rib 24 is integrally formed to protrude. The center of the arc of these ribs 24 coincides with the center of rotation of the inner blade 5, and the guide ribs 24 support the cap 21 on the base frame 20 so as to be rotatable. The upper end opening surface of the base frame 20 when mounted on the razor head 4 is located slightly above the upper end surface of the razor head 4.

The cap 21 has an arch wall 25 having an inverted U-shaped cross section, and a pair of end walls 2 for closing both left and right ends of the arch wall 25.
6 and an arch wall 2
A group of water inlets 27 for washing with water is opened on each of the front and rear surfaces of the front and rear surfaces 5. At the center of the lower end of the front and rear walls of the cap 21, a partially arcuate swiveling rib 28 which is engaged with the guide rib 24 and guided to rotate is integrally provided. As shown in FIG. 5, the guide rib 24 and the revolving rib 28 are engaged with each other up and down and are joined so that they cannot come off from each other. Front and rear swivel ribs 2
The circumference of 8 is set to be larger than the circumference of the missing portion of the front and rear guide ribs 24. This is because the engagement state of the ribs 24 and 28 is maintained even when the cap 21 is rotated and the longitudinal line of the cap 21 is orthogonal to the longitudinal line of the base frame 20.

As shown in FIG. 3, the brush 17 comprises a brush base 30 and a group of brush bristles 31 planted on the lower surface of the brush base 30, and a brush 18 is provided by a support 18 provided between the brush base 30 and the cap 21. 17 is floatingly supported. More specifically, as shown in FIGS. 4 and 5, the support 18 is constituted by four inverted L-shaped support arms 33 provided on the front and rear surfaces near the left and right ends of the brush 30. Each support arm 33 is configured as a lever mechanism by pivotally supporting a fulcrum shaft 34 provided near the lower end thereof on the left and right end walls 26 of the cap 21, and the support 18 also serves as the transmission mechanism 19.

The upper end of each support arm 33 has a thin hinge portion 35.
Is connected to the brush stand 30 via the. The arm portion below the fulcrum shaft 34 is in contact with the front and rear surfaces of the inner cutter 5. Accordingly, when the inner blade 5 is displaced in the direction of arrow R in FIG. 1, the support arm 33 pressed by the inner blade 5 tilts in the S direction about the fulcrum shaft 34. In addition, the support arm 33 is provided with a fulcrum shaft 34.
The upper arm length b1 of the upper arm portion is defined by the fulcrum shaft 34 and the inner cutter 5.
Is set larger than the lower arm length b2 of the lower arm portion up to the contact position, the upper arm portion tilts with a stroke larger than the stroke of the inner blade 5. Even when the inner blade 5 is displaced in the direction opposite to the arrow R, the support arm 33 can be similarly amplified in the opposite direction and tilted. As a result, shavings and sebum adhering to the inner blade 5 can be more effectively cleaned.

According to the cleaning tool G, the outer blade holder 7
After removing, the base frame 20 is fixed to the fitting portion 4 of the razor head 4.
6, the inner blade 5 is rotated along with the cap 21 by rotating the cap 21 as shown in FIG. 6, and the longitudinal center line thereof is set to be orthogonal to the reciprocating drive direction of the vibrator 8. To the cleaning position. In this state, when the switch knob 11 is turned on while pouring running water into the water inlet 27 of the cap 21 or in a state where the entire cap 21 is immersed in the stored water, the inner blade 5 and the brush hair 31 are separated. The blades slide relative to each other along the surface walls of the blades, and can reliably remove fuzz, sebum, and the like adhered to the blades by rinsing water.

At the time of cleaning, the brush 17 is
Is driven in a direction opposite to the vibration direction of the inner blade 5, so that the inner blade 5 and the brush 17 relatively slide with a sliding contact stroke that is at least one time the vibration stroke of the inner blade 5. Further, the drive stroke of the brush 17 is amplified by the leverage of the upper arm length b1 and the lower arm length b2. Therefore, compared with the conventional cleaning tool, the contact impact between the inner blade 5 and the brush 17 is increased, and the inner blade 5 can be effectively cleaned.

After the cleaning, the cap 21
Is returned to the original state, the inner blade 5 is returned to the normal position, and the button 14 of the lock claw 13 is pushed and operated.
The entire cleaning tool G can be removed from the razor head 4. Thereafter, the water is drained and the outer blade holder 7 is mounted on the razor head 4 again.

FIGS. 7 and 8 show another embodiment of the cleaning tool G. FIG. There, the holder 16 is formed in a cap shape opening downward, and the brush 17 disposed inside the holder 16 is attached to the support 1.
8 supported floating. Specifically, the upper ends of the pair of left and right support arms 33 are connected to the upper ends of the pair of left and right support arms 33 via the brush base 30 and the pins 41 so as to be freely bent by the brackets 40 provided on the side end walls of the holder 16. Further, a holding frame 42 circumscribing a side end of the inner blade 5 is provided at a lower end of each support arm 33, and the inner blade 5 is held between the pair of holding frames 42 while the holder 16 is mounted on the razor head 4. are doing. Also in this embodiment, the support 1
8 also serves as the transmission mechanism 19.

In this embodiment, the inner blade 5 is cleaned in a normal use posture, but the brush 17 is rotated in the opposite direction to the vibration direction of the inner blade 5 as in the previous embodiment. Since the vibration stroke is amplified and transmitted to the brush 17, the cleaning stroke can be increased by increasing the sliding stroke between the brush 17 and the inner blade 5, as compared with the case where cleaning is performed by a brush that is fixedly arranged. In addition, brush 1
7 is reciprocated along an arc-shaped trajectory while maintaining a posture parallel to the inner cutter 5. Since the inner blade 5 is held by the pair of U-shaped holding frames 42, the horizontal rotation of the inner blade 5 during cleaning is restricted, and the vibration of the inner blade 5 is reduced.
3 can be told.

FIGS. 9 and 10 show still another embodiment of the cleaning tool G, in which a holder 16 is formed in a cap shape that opens downward, and a brush 17 is disposed inside the cap.
Was floatingly supported by a support 18 comprising a pair of front and rear support arms 33. More specifically, a pair of front and rear support arms 33 is supported on the front and rear walls of the holder 16 via a fulcrum shaft 34 so as to be able to swing left and right. The upper end of each support arm 33 is integrated with the brush stand 30. A fork-shaped passive piece 44 is integrally provided at the lower end of each support arm 33 so that it can be engaged with a drive pin 45 provided on the inner cutter 5. By mounting the holder 16 on the razor head 4 while engaging the passive piece 44 with the pin 45, the reciprocating vibration of the inner cutter 5 can be transmitted to the brush 17 via the passive piece 44 and the support arm 33. Also in this embodiment, the support 18 also serves as the transmission mechanism 19.

In this cleaning tool G, the inner blade 5 is cleaned in the normal use posture, but the cleaning tool G shown in FIG.
Similarly, the brush 17 is rotated in the opposite direction to the vibration direction of the inner
7, effective cleaning can be performed. Since the brush 17 at the time of cleaning is reciprocated according to an arc-shaped trajectory defined by the swing trajectory of the support arm 33, the vertical direction between the brush bristles 31 and the inner blade 5 at the left and right ends of the drive stroke of the brush 17 Can be increased. That is, since the movement in the vertical direction is added, the brush bristles 31 easily enter between the blades 5a, and the cleaning effect can be increased by that much.

In addition to the above-described embodiment, the support 18 and the transmission mechanism 19 can be separately provided. For example, the brush base 30 is guided and supported by the holder 16 so as to be freely slidable left and right, and the support structure is used as a support 18.
Alternatively, the transmission mechanism 19 as described with reference to FIG. 9 can be provided to drive the brush 17 back and forth.

The transmission mechanism 19 is preferably configured as a leverage mechanism for simplifying the structure. For example, after the reciprocating motion of the inner cutter 5 is converted into a rotation operation by a pinion rack or a cam mechanism, the rotation operation is performed. The brush 17 may be reciprocally driven again by the above-described mechanism or the like to perform reciprocal operation again. In addition to the above embodiment, the cleaning tool G is not limited to the water-washing type, and in that case, the water inlet 27 can be omitted.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of a cleaning tool in a cleaning state.

FIG. 2 is a front view of the electric shaver in a state where an outer blade holder and a cleaning tool are separated.

FIG. 3 is an exploded perspective view of the cleaning tool.

FIG. 4 is a vertical sectional front view showing a state in which a cleaning tool is mounted on a razor head.

FIG. 5 is a sectional view taken along line AA in FIG. 4;

FIG. 6 is a sectional view taken along line BB in FIG. 1;

FIG. 7 is a longitudinal sectional front view showing another embodiment of the cleaning tool.

FIG. 8 is a sectional view taken along line CC in FIG. 7;

FIG. 9 is a longitudinal sectional front view showing still another embodiment of the cleaning tool.

FIG. 10 is a sectional view taken along line DD in FIG. 9;

[Explanation of symbols]

 Reference Signs List 4 Razor head 5 Inner blade 8 Vibrator 16 Holder 17 Brush 18 Support body 19 Transmission mechanism 20 Base frame 21 Cap 27 Water inlet G Cleaning tool

Claims (6)

[Claims] A cleaning tool having an inner blade cleaning brush is detachably attached to a razor head, and reciprocates the inner blade in a state where the brush contacts the inner blade. A reciprocating electric razor that performs cleaning while being driven. The cleaning tool G includes a holder 16 detachably mounted on the razor head 4, a brush 17 disposed inside the holder 16, and a holder 16. A support member 18 provided between the brush 17 and the brush 17 for supporting the brush 17 in a reciprocating manner.
And a transmission mechanism 19 provided between the brush 17 and the inner blade 5 and transmitting the vibration of the inner blade 5 to the brush 17. The transmission mechanism 19 transmits the vibration of the inner blade 5 to the vibration direction of the inner blade 5. A reciprocating electric shaver characterized in that it is converted in the opposite direction and transmitted to the brush 17. 2. The reciprocating electric shaver according to claim 1, wherein the transmission mechanism comprises a lever mechanism. 3. The reciprocating electric shaver according to claim 1, wherein the transmission mechanism is configured to amplify the vibration stroke of the inner blade and transmit the vibration stroke to the brush. 4. A reciprocating electric shaver according to claim 1, wherein said support member also serves as a transmission mechanism. 5. The holder 16 includes a base frame 20 mounted on the razor head 4 and a cap 21 rotatably supported by the base frame 20. The reciprocating electric shaver according to claim 1, wherein the cleaning is performed in a posture intersecting in a direction substantially orthogonal to the direction. 6. A reciprocating electric shaver according to claim 5, wherein a water inlet port for allowing the washing water to flow in and out is opened in the peripheral wall of the cap.