JPH0379037B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a mechanism for discharging beard debris accumulated inside an electric shaver.

[Background technology]

Conventionally, various types of beard debris ejection mechanisms for electric shavers have been provided. Among these, a typical one is to provide a beard waste outlet on a part of the outer circumferential surface of the blade mount, and also provide a beard waste outlet in a part of the blocking ring, and then rotate the blocking ring to attach the blade. The beard waste discharge ports of the stand and the closing ring were aligned to discharge the beard waste, and the closure ring was turned to close the beard waste discharge ports. For this reason, the opening area of the beard waste outlet is limited due to its structure (theoretically, it can be said that the beard waste outlet cannot be closed if it exceeds 50%, but the open area is actually extremely small due to strength and other issues). ), it was not possible to clean the beard debris efficiently. Furthermore, the appearance was poor due to the stubble discharge port of the occluding ring. There was also a device in which the outer cutter block was slid in the axial direction to open and close the beard waste discharge port, but the outer cutter block was subject to manual intervention and there was a risk of damage to the outer cutter.

[Purpose of the invention]

The present invention has been made in view of the drawbacks of the conventional examples described above, and its purpose is to increase the opening area and numerical aperture of the whisker waste outlet to obtain a sufficient opening ratio. To provide an electric shaver that can efficiently clean beard debris and has less risk of damaging outer blades.

[Disclosure of the invention]

The electric shaver of the present invention is an electric shaver equipped with an outer cutter 1 and an inner cutter 2, in which a razor body 6 is provided with a blade mount 3 for attaching the outer cutter 1, and a beard waste outlet 4 is provided on the outer surface of the blade mount 3. The outer surface of the blade mount 3 is surrounded by a closure ring 5 that opens and closes the beard waste discharge port 4, and the closure ring 5 can be used to change the beard waste discharge port 4 open state and the beard waste discharge port 4 closed state. This is characterized in that the outer cutter 1 and the inner cutter 2 are movable in the axial direction between the outer cutter 1 and the inner cutter 2, thereby achieving the above object.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 6 denotes the razor body, which is comprised of internal components (not shown) such as a housing 14, a lower cover 15, a dial 16 for attaching and detaching the lower cover 15, a switch 17, and a battery. A motor 18 and the like are incorporated in the upper part of the razor body 6, as shown in FIG. That is, an M-type sealing material 20 for sealing (waterproofing) is inserted into the motor shaft portion 19, and the motor shaft portion 1 is sealed.
9 is inserted into the through hole 21 of the motor mounting base 11, and the motor 18 is fixed to the lower surface of the motor mounting base 11 with a hook (not shown), etc., and the edge of the flange 22 of this motor mounting base 11 is sealed (watertight). The motor mount 11 is fitted into the upper end opening of the housing 14 via a rubber ring 23, and the motor mount 11 is fixed to the housing 14 with screws 24. 3 is a blade mount for screwing the outer blade 1, 5 is a closing ring that surrounds the outer peripheral surface of the blade mount 3, and the blade mount 3 is closed after the closing ring 5 is fitted on the outer periphery. , is fixed to the motor mounting base 11 with screws 25. Further, a joint 26 is press-fitted into the motor shaft portion 19, and the inner cutter 2 is attached to the joint 26, and the outer cutter 1 is screwed onto the blade mount 3. A blade protection cap 13 can be placed over the outer cutter 1 when not in use, and a claw 27 on the inner periphery of the blade protection cap 13 is fitted into a ring groove 28 on the outer periphery of the outer cutter 1.

As shown in FIGS. 6 and 7, a threaded portion 29 for attaching the outer cutter 1 is provided on the inner periphery of the blade mount 3, and a flange 9 is protruded from the outer periphery of the upper end. A plurality of horizontally elongated hole-shaped beard waste discharge ports 4 are opened on the outer periphery of the beard waste discharge ports 4, and the spaces between the beard waste discharge ports 4 are inclined with respect to the circumferential direction of the outer peripheral surface (preferably inclination angle α=15° to 30°). °) Slanted grooves 7 are carved,
The lower end of the inclined groove 7 communicates with a horizontal lower straight part 31 opened on the lower end surface, and the upper end of the inclined groove 7 communicates with the flange part 9.
It communicates with an upper straight part 30 provided horizontally below the collar part 9. Further, an upper click boss 32 and a lower click boss 33 are provided on the upper and lower outer peripheral surfaces of the blade mount 3, respectively, at the same pitch as the inclined groove 7. On the other hand, an anti-slip uneven part 34 is provided on the outer periphery of the closing ring 5, a ring protrusion 35 is provided on the upper end thereof, and a protrusion 8 and a protrusion 8 for preventing rattling are provided on the lower end of the inner peripheral surface of the closing ring 5. Ribs 10 are provided to protrude inward. Furthermore, an elastic piece 37 is provided at the lower end of the inner circumferential surface of the closing ring 5 to provide elasticity by inserting a slit groove 36 around the periphery, and a substantially triangular click protrusion 38 is provided on the elastic piece 37. Then, at the time of assembly, the protrusion 8 is slidably fitted into the inclined groove 7 so that the protrusion 8 is housed in the lower straight part 31, and the blade mount 3 is attached to the motor mount 11 as described above.
It is fixed at However, under normal conditions, the fourth
As shown in the figure, the closing ring 5 stops and retracts when its lower surface abuts the end surface of the housing 14, the protrusion 8 is located within the lower straight portion 31, and the click protrusion 38 contacts the lower click boss 33. The cleaning ring 5 is elastically overcome so that it does not move inadvertently. In this state, there is a gap between the outer periphery of the blade mount 3 and the inner periphery of the closing ring 5, but during this time the gap is closed by the end face of the housing 14 and the flange 9. , so that beard debris does not spill out of the closing ring 5. When cleaning the beard debris, turn the closing ring 5 with a little force, the click protrusion 38 will elastically overcome the lower click boss 33 and the closing ring 5 will become free, and the closing ring 5 will be freed. When turning 5, the protrusion 8 is guided and moved within the inclined groove 7, and the closing ring 5 protrudes. At this time, the inner surface of the rib 10 comes into sliding contact with the inner surface of the blade mount 3, and the flange 9 comes into sliding contact with the inner peripheral surface of the closing ring 5, so that the closing ring 5 moves without rattling. Further, as the closing ring 5 rises, the blade protection cap 13 is also pushed up, and the blade protection cap 13 is naturally removed from the outer cutter 1. When the closing ring 5 rises and the protrusion 8 reaches the inside of the lower straight part 31, the protrusion 8 stops against the lower surface of the collar part 9. When the closing ring 5 is turned with a little force applied, the protrusion 8 moves into the upper straight part. 3
While moving within the upper click boss 32, the click protrusion 38 clicks over the upper click boss 32 as shown in FIG. 5, and locks the closing ring 5 so that it does not return. In this state, as shown in Fig. 15, submerge up to the blade mount part 3 in water, turn on the switch 17 and rotate the inner blade 2, a water flow will be generated, and beard debris will be discharged from the beard debris outlet 4 along with the water flow. They are thoroughly washed with water. After cleaning, use the occluding ring 5.
It can be returned to its original state by reverse action.

Further, FIG. 2 shows a protection mechanism for the outer cutter 1 during cleaning of hair debris. That is, if the electric razor is dropped when cleaning beard debris, the outer cutter 1 is most likely to be damaged, so when the closing ring 5 is protruded, its tip surface is δ higher than the apex A of the outer cutter 1. It is designed to protrude and protect the outer cutter 1. In addition, FIG. 9 shows another structure for protecting the outer blade 1 when it is dropped or stored, in which the blade mount 3 portion of the electric razor is bent into a substantially L-shape with respect to the razor body, and a closing ring is attached. When the razor body 6 is protruded, the razor body 6 is on the bent side (inside).
The outer cutter 1 is retracted by δ' from an imaginary line B connecting the lower end of the closing ring 5 and the tip of the closing ring 5. As shown in FIG. 9, even when the razor body 6 and the blade are drained after washing with water, this can be done without damaging the outer cutter 1, which is directed downward.

Furthermore, if the ring protrusion 35 of the closing ring 5 is integrally molded with an elastic material such as rubber, it will prevent slipping when the closing ring 5 is rotated, and it will provide a good feel. I can do it.
In the illustrated example, the beard waste discharge ports 4 are opened at three locations, but they may be opened over almost the entire outer circumference. The inclination angle of the inclined groove 7 is α as described above.
= 15° to 30°, but this is because if the inclination angle α is small, the rotation angle to open the beard waste outlet 4 becomes large, making it difficult to use, and conversely, if the inclination angle α is large, the vertical This is because the angle change between (the intersection of) the straight parts 30, 31 and the inclined groove 7 becomes rapid, causing the problem that the cleaning ring 5 feels like a two-step click and the operating force becomes stiff. It is.

10 to 14 are other examples of the present invention, in which the closing ring 5 is operated in a straight manner. The blade mount 3 has a 12th
As shown in the figure and FIG. 13, the beard waste discharge port 4 is opened, and between the beard waste discharge ports 4, a vertically stepped click ridge 39 is formed. A guide strip 40 that is higher than the click ridge 39 is made to protrude in the vertical direction. On the other hand, the elastic piece 3 on the inner circumference of the closing ring 5
A click protrusion 38 is provided at 7 in a protruding manner. Thus, the closing ring 5 is fitted onto the outer periphery of the blade mount 3, the click protrusion 38 is housed between the guide strips 40, the click protrusion 38 is regulated between the guide strips 40, and the closure ring 5 is rotated. has been prevented,
The closing ring 5 is configured such that the click protrusion 38 elastically passes over the click ridge 39, so that the closing ring 5 slides while being clicked. Furthermore, the end face of the housing 14 and the ring 5
A spring body 12 is interposed between the two. When the use ring 5 is pushed a little, the use ring 5 is automatically projected by the elastic force of the spring body 12 and the beard waste outlet 4 is opened, and conversely, when the beard waste outlet 4 is closed, It is sufficient to push and retract the use ring 5 against the volatile force of the spring body 12. In this embodiment, the spring body 12 biases the service ring 5 in the projecting direction, but the spring body 12 is attached so as to bias the service ring 5 in the retracting direction.
It may be possible to simplify the return of the .

〔Effect of the invention〕

Since the present invention is constructed as described above, there is no restriction on the aperture ratio (opening area) of the beard waste discharge port opened in the blade mount, and a large beard waste discharge port can be provided to remove the beard waste. It is also easy to clean, and since there is no need to provide a dust outlet on the occluding ring, it has an excellent appearance, is less likely to get dirty, and you do not have to touch the outer blade during operation, just using the occluding ring. It is easy to operate, there is no risk of damaging the outer cutter, and there is no need to get your hands dirty.Moreover, the closing ring can be moved in the axial direction of the outer cutter and inner cutter between the open state of the beard waste outlet and the closed state of the beard waste outlet. Because of this, there is no need to change the relative position of the outer cutter and inner cutter, and when cleaning, for example, when rotating the inner cutter with the blade facing downward, the inner cutter may wobble and hit the outer cutter unevenly, resulting in deformation. The advantage is that this does not happen.

[Brief explanation of drawings]

FIGS. 1 and 2 are perspective views when the closing ring is retracted and extended in one embodiment of the present invention, and FIG.
The figure is a sectional view taken along the line X-X in Figure 1, Figures 4 and 5 are partially cutaway plan views for explaining the action of the above, Figure 6 is a perspective view of the blade mount shown in the above, and Figure 7 is a developed view of the outer peripheral surface of the blade mount shown above, FIG. 8 is a perspective view of the closing ring shown above, FIG. 9 is a side view showing another example of the present invention, and FIGS. 10 and 11 are views showing the present invention. A partially broken plan view for explaining the operation showing still another example of
Fig. 12 is a perspective view of the blade mount shown above, Fig. 13 is a developed view of the outer peripheral surface of the blade mount shown above, Fig. 14 is a perspective view of the closing ring shown above, and Fig. 15 shows whisker scraps shown above. FIG. 3 is a side view showing the state during cleaning. 1...Outer blade, 2...Inner blade, 3...Blade mounting base, 4
...Beard waste outlet, 5...Closing ring.

Claims (1)

[Scope of Claims] 1. An electric shaver equipped with an outer cutter and an inner cutter, wherein the razor body is provided with a blade mount for attaching the outer cutter, and a beard waste outlet is formed by opening on the outer surface of the blade mount, The outer surface of the blade mounting base is surrounded by a closing ring that opens and closes the beard waste outlet, and the closing ring is moved in the axial direction of the outer and inner blades between the open state of the beard waste outlet and the closed state of the beard waste outlet. An electric razor characterized by being made to be flexible. 2. The electric shaver according to claim 1, wherein the closing ring projects beyond the apex of the outer cutter when the beard waste discharge port is open. 3. Bend the blade mount part provided at the upper end of the razor body into a substantially L-shape with respect to the razor body, move the closing ring toward the top of the outer blade to open the beard waste outlet, and then bend it. 2. The electric shaver according to claim 1, wherein the outer cutter is arranged at a position retracted from an imaginary line connecting the lower side of the razor body and the closing ring. 4. The electric shaver according to claim 1, wherein the closing ring is configured to move in the axial direction of the outer cutter and the inner cutter by rotation. 5. A slanted groove inclined with respect to the circumferential direction is provided on the outer peripheral surface of the blade mount, and a protrusion protruding from the inner periphery of the closing ring is slidably fitted into the slanted groove to be closed by rotation of the closing ring. 5. The electric shaver according to claim 4, wherein the ring moves in the axial direction of the outer cutter and the inner cutter. 6. The electric shaver according to claim 5, wherein the inclined groove formed in the blade mount has an inclined angle of 15° to 30° with respect to the circumferential direction. 7. A flange is made to protrude from the outer periphery of the upper end of the blade mount, and the closing ring is positioned and stopped by abutting against the flange or the end face of the razor body when the beard waste discharge port is opened and when it is closed, respectively. An electric shaver according to claim 1, characterized in that: 8. The electric shaver according to claim 1, characterized in that the closing ring is attached to the razor body via a spring body.