JPS62281990A - Electric razor device - 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] 3. Detailed Description of the Invention (Field of Industrial Application) This invention relates to an electric shaver device, and in particular, it is possible to adjust the amount of depression of a rotary blade unit supported by a floating holder. Relating to an electric shaver device.

(Background Art) In general, an electric shaver rotates an inner cutter inside an outer cutter and cuts hair by a perforation action between the outer cutter and the cutting blade. In some cases, only one rotary blade is provided for each shaver head, but in other cases, blades in which 3 + [lil are provided for each shaver head are also frequently used. Usually, a device equipped with a plurality of rotary blades is constructed so that each rotary blade can be sunk individually so that it can uniformly contact the shaved area of the user during shaving.

By the way, the value of this amount of sinking has an optimum value for each user of the electric shaving device, and it is desirable to be able to adjust the amount of sinking of this blade in order to improve usability.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electric shaving device that satisfies the above requirements and allows easy adjustment of the amount of depression of a rotary blade rotatably held by a floating holder.

(Summary of the invention) In order to achieve this object, the present invention provides that the blade holder is placed on the stand,
The blade holder covers the base and is provided with a shaver head that can be attached and detached, and the top surface of the shaver head is provided with three openings through which the outer blades of a shaving unit having an outer cutter and an inner cutter protrude from the inside, A triangular plate-shaped floating holder having a bearing ring for rotatably receiving the inner blade of each of the three shaving units is arranged between the base and the shaver head, and the tip is placed at the center of the inner surface of the shaver head. A support shaft having a flange formed thereon is implanted into a through hole provided approximately in the center of the floating holder so that the midway part of the support shaft is loosely inserted, and the flange of the support shaft and the bottom surface of the floating holder are inserted around the support shaft. A compression coil spring is mounted so that the floating holder can sink between the two, and a stop tube is provided that fits around the compression coil spring. The movable stopper is provided with a movable stopper that can be moved up and down, and a height adjustment device is provided below the movable stopper for adjusting the stopping position of the movable stopper.

(Embodiment) Hereinafter, an embodiment of an electric shaving device according to the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 indicates a housing of a shaver, and a blade holder holder 2 is fixed to the upper part of the housing 1. The blade holder base 2 has a bottom plate 3 having a substantially triangular planar shape, and a side wall 4 is integrally formed around its periphery. Circular openings 5.5.5 of 3 tlMI are bored in the bottom plate 3, and the centers of these openings are arranged to coincide with the vertices of an equilateral triangle. By the way, these circular openings 5.
Although not shown in the drawings, the tip of a drive shaft rotationally driven by an electric motor can protrude from the bottom through each of 5.5.

A shaver head 8 is pivotally attached to an example of the base 2 of the blade holder via a hinge 7. Note that the blade holder of the shaver head 8 may be removably fitted to the base 2. In the present invention, the term "attachment/detachment" includes both the above-mentioned pivot attachment and detachable attachment.

This shaver head 8 is constructed such that the blade holder is covered with the side wall 4 of the base 2, and the top surface of the shaver head 8 has three openings 9, corresponding to the circular openings 5.
9.9 is formed.

A shaving unit 10 is attached to each of the openings 9 of the shaver head 8 from the inside, and this shaving unit 10 includes an outer cutter 11 and an inner cutter 12. The outer cutter 11 has a large number of slit groups 11a arranged annularly over the entire circumference.
These slit groups 11a are arranged so as to protrude several millimeters from three sides of the shaver head 8 during assembly, and the maximum protrusion position is regulated by the flange 13 of the outer cutter 11 hitting the inner surface of the shaver head 8. There is.

Further, a chamfered portion 14 is provided on a part of the flange 13 of the outer cutter 11.
．． 14 is formed, and on the other hand, stoppers 15 and 15 are provided protruding from the side of the shaver head 8, as is clear from FIG. It looks like this. On the other hand, inner blade 1
2 has a large number of cutting blade groups 17 arranged around a hub 16, and a key hole 18 for transmitting rotational force is bored in the center of the hub 16.

The three inner cutters 12, 12, 12 are rotatably held by a floating holder 20, and as is clear from FIG. 2121.21
These bearing rings 21, 21, 21 are shaped so that their centers coincide with the centers of the inner cutters 12 fitted into the shaver head 8. The center of the floating holder 20 is held by a support shaft 22 implanted in the center of the shaver head 8, and a flange 23 is formed at the end of the support shaft 22. A compression spring 24 is installed between the holder 20 and the holder 20 . As a result, the floating holder 20 constantly acts to push up the inner cutter 12, 12, 12 by the spring force of the compression spring 24. Also, when actually shaving, 3
The outer cutters 11 are pushed inward, and the amount of pushing is not uniform. In this way, the floating holder 20 is supported by the support shaft 22 with a spring load applied to the center, so that when a pushing force is applied to one outer cutter 11, the floating holder 20 supports the remaining outer cutters 11 and 11.
The outer cutter 11 can be sunk by tilting using the outer edge as a support side. In addition, two adjacent outer blades 11.11
When a pushing force is applied to the outer cutter 11, the floating holder 20, which supports the remaining outer cutter 11, is moved around the side of the floating holder 20 and allowed to sink.

However, with this configuration, the maximum value of the amount of sinking of the floating holder 20 cannot be set to an appropriate value.

Therefore, in this invention, the floating holder 20
A sinking depth adjusting device 25 is provided that can adjust the amount of sinking. This sinking depth adjusting device 25 has a movable stopper 26, and the blade receiver of the movable stopper 26 is arranged below the center of the bottom plate of the table 2, and the upper surface of the movable stopper 26 is arranged equally in the circumferential direction. Three claws arranged 27.2
7.27 is provided. These claws 27.27.2
7, the blade holder has three openings 28 formed in the bottom plate 3 of the stand 2.
．． 28. It is fitted so that it can move up and down within 28. This movable stopper 26 is moved by the swinging of a height adjustment lever 30 whose central portion is pivoted by a pivot 29. That is, the pivot shaft 29 of the adjustment lever 30 has a blade holder fixed to the lower surface of the bottom plate 3 of the table 2, the inner end of the adjustment lever 30 contacts the lower surface of the movable stopper 26, and the outer end of the adjustment lever 30 contacts the lower surface of the movable stopper 26. The receiver extends toward the side wall of the stand 2 and connects the cam I! of the cam plate 31! It fits inside the jI32. This cam plate 31 can slide by a predetermined stroke in the lateral direction, and since the cam 132 is inclined with respect to the horizontal sliding surface, the adjustment lever is moved as the cam plate 31 moves in the lateral direction. 30
The outer edge of is moved up and down.

Therefore, the inner end of the adjustment lever 30 can move up and down and provide up and down movement to the movable stopper 26.

On the other hand, a stop tube 34 is slidably provided on a support shaft 22 supporting the center of the floating holder 20 and a compression spring 24 loosely mounted on the support shaft 22. This stop tube 34 is fixed to the floating holder 20 at one end. The lower end surface of this stop tube 34 is connected to the shaver.
When the throat 8 is placed on the stand 2 and put into use, it will be located directly above the claws 27, 27, 27 of the movable stopper 26. When no pushing force is applied to the outer cutter 11, the claws 27 and 27 of the movable stopper 26
．． An appropriate gap is formed between the upper surface of the stop tube 27 and the lower end surface of the stop tube 34.

Therefore, when all or part of the outer cutter 11 is pushed in against the spring force of the compression spring 24, the outer cutter 11
is pushed in until the lower end surface of the stop cylinder 34 comes into contact with the upper surface of the claws 27, 27, 27. To adjust the sinking amount of the outer cutter 11, it is sufficient to change the set height of the pawls 27, 27, 27. To do this, the cam plate 31 is slid laterally, and the cine groove 32 is moved laterally. , the outer end of the adjustment lever 30 fitted thereto is moved up and down, and the inner end of the adjustment lever 30 is moved up and down accordingly, so that the movable stopper 26
All you have to do is move it vertically or continuously or stepwise. For example, by moving the cam plate 31 along the inclined cam groove 32, the amount of depression of the outer cutter 11 can be continuously adjusted. Furthermore, if the cam plate 31 is set at three stopping positions, the claws 27, 27, 27 can have three different heights.

In the above embodiment, the cam plate 3 with the cam groove 32 is used as a means for moving the movable stopper 26 up and down from the outside.
1 and the seesaw motion of the joint lever 30, but the present invention is not limited to this. For example, the cam surface of a cam plate that changes the height in stages may be brought into contact with the lower end surface of the movable stopper 26, and this cam may be moved from the outside. The board may also be rotated. Further, the number of claws 27 of the rotation stopper 26 is not limited to three, but may be any other number, or may be configured in a ring shape.

In the above embodiment, the stop tube is fixed to the floating holder side, but it may be slidably mounted on the support shaft, or in some cases, it may be fixed on the claw of the movable stopper. It has the following effects.

As is clear from the above description, according to the present invention, a stop tube is provided on the lower center surface of the floating holder which is elastically supported using the spring force of a spring, and a movable stopper is provided opposite to the bottom surface of the stop tube. Since the blade holder is provided on the bottom side of the stand so that it can move up and down, the amount of sinking of the rotary blade unit can be set to the optimum size for the user.

Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the components of the electric shaving device according to the present invention, Fig. 2 is a perspective view showing the inner surface of the shaver head, and Fig. 3 is a sinking depth S circumferential fitting. FIG. 1...Housing, 2...Blade holder is stand, 3...
Bottom plate, 4... Side wall, 5... Circular opening, 7.
... Hinge, 8... Shaver head, 9... Opening, 10... Shaving Uniso I-111... Outer blade, 11a... Slit group, 12... Inner blade, 13... flange, 14... chamfered part,
15...Stopper, 16...Hub, 1
7... Monthly cutting group, 18... Key hole, 20... Floating holder, 21... Bearing is ring, 2
2... Support shaft, 23... Flange, 24...
compression spring, 25... sinking depth adjustment device,
26...Movable stopper, 27...Claw, 28.
... opening, 29 ... pivot, 30 ... height joint lever, 31 ... cam plate, 32 ... cam groove, 34 ...
・Stop tube.

Claims (1)

[Claims] 1. A shaver head is removably provided on the blade holder, covering the blade holder, and the outer blade of the shaving unit has an outer cutter and an inner cutter on the top surface of the shaver head. A triangular plate-shaped floating holder is provided between the blade holder and the shaver head, and has a bearing ring for rotatably receiving the inner blade of each of the three shaving units. a support shaft having a flange formed at the tip is implanted in the center of the inner surface of the shaver head such that the support shaft is loosely inserted into a through hole provided approximately in the center of the floating holder; A compression coil spring is mounted around the shaft so that the floating holder can be sunk between the flange of the support shaft and the bottom of the floating holder, and a stop tube is provided that fits around the compression coil spring, and a stop tube is installed directly below the stop tube. An electric shaving device characterized in that a movable stopper that can move up and down is provided on the bottom plate side of the blade holder, and a height adjustment device that can adjust the stopping position of the movable stopper is provided below the movable stopper. .