JPS6130615Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of an electric shaver in which the edge shaving blade block, which is rotatably attached to the outer wall of the main body case and can be moved in and out, can be moved in and out with a knob operation. With the knob for
To simplify the structure and provide an excellent sense of moderation when a power switch can be operated with a blade block.

Some conventional razors of this type are provided with a knob for inserting and removing the blade block on the back side of the main body case, that is, on the same wall as the mounting wall for the edge shaving blade block.

However, from the manufacturer's perspective, this may be advantageous because it simplifies the structure of the drive transmission mechanism from the operating knob side to the blade block side, but from the customer's perspective, in many cases There is an inconvenience in that after operating the power switch operating knob provided on the front of the main body case, the knob for inserting and removing the blade block on the back wall must be operated.

Therefore, in this invention, a power switch and a edge shaving blade block that rotates in and out are attached to the main body case, and the slide operation knob attached to the outer wall of the main body case is moved to the inner wall of the main body case. one end of the movable element is connected to the power switch, the other end is connected to the rotating in/out operation side of the blade block, and the sliding moderation part is placed at an intermediate position of the movable element. By arranging
The structure is simplified by combining two operation knobs into one, and the feeling of moderation of the slide when operating either side of the power switch and the blade block is improved.

An embodiment of this invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a main body case made of synthetic resin, which includes a square body 2 and a head 3 projecting in a direction perpendicular to the axis of the square body 2. This main body case 1 is divided into upper and lower halves, and these two halves 4 and 5 are fastened together by screws 6 and 6 for attachment. An outer cutter holder 8 holding an outer cutter 7 constituting the main blade is attached to the tip of the head 3 on the front wall surface 1a side of the main body case 1, and an outer cutter holder 8 holding an outer cutter 7 constituting the main blade is attached to the back wall surface 1b side. A edge shaving blade block 9 (FIG. 2) is installed which receives and moves in and out. Reference numeral 10 denotes a sliding switch knob for operating the power switch of the motor, which will be described later.This knob 10 also serves as a knob for operating the blade block in and out, and the side wall surface of the main body case 1 is not susceptible to scattering of hair chips. It is attached to 1c. Reference numeral 11 denotes a lock push button held by the knob 10 to prevent the knob from malfunctioning.

In FIG. 2, 12 is a power supply battery housed in the body 2, 13 is a motor driven by this battery 12, and a rotating shaft 14 of this motor 13 protrudes from both the front and rear sides of the motor 13. An inner cutter holder 1 is attached to one end 14a of the rotating shaft 14 that protrudes forward.
5 is attached, and the inner cutter 16 held by this holder 15 slides on the inner surface of the outer cutter 7.

17 is a movable element connected to the knob 10,
This movable element 17 has the knob 10 turned on and off.
In order to maintain moderation at the OFF position, the above ON/
Clamping pieces 20, 20 are formed at intermediate positions to elastically engage and disengage the moderation protrusions 18, 19 formed on the inner wall of the main body case 1 in correspondence with the OFF position, and these constitute a moderation section. ing. 21
is a sliding power switch housed in the main body case 1, and the tip of a rod 22 connected to a movable contact piece (not shown) of the switch 21 is formed at one end of the movable element 17. Engagement recess 23
are engaged and connected.

As shown in FIG. 3, the blade block 9 is guided by a fixed blade 25 fixed to a fixed blade holder 24 and a guide pin 26 vertically disposed on the lower surface of the fixed blade holder 24, so that the lower surface of the fixed blade 25 is It consists of a movable blade 27 that slides into contact with the fixed blade holder 24 and a leaf spring 28 that is supported at both ends of the fixed blade holder 24 and brings the movable blade 27 into close contact with the fixed blade 25.
It is rotatably supported on the inner wall of the main body case 1 via pivots 29 formed at both ends.

30 is a pin 32 on the main surface of a substrate 31 made of synthetic resin.
This vibrating rod 3 is pivotably supported to swing freely.
0, the other end 14 of the rotating shaft 14 of the motor 13
A cam receiving hole 34 is formed into which the eccentric cam 33 fixed to b is fitted, and the movable blade 27 is inserted through the engaging portion 35 formed at the tip of the vibrating rod 30 through the through hole 36 formed in the base plate 31. It is connected to the side.

Reference numeral 37 denotes a U-shaped drive rod disposed on the main surface side of the substrate 31, and opposing sides 38 of the drive rod 37,
38 are formed with holding pieces 39 that hold both sides of the board 31 and hold the driving rod 37 movably in the directions of arrows a and b relative to the board 31. Holding piece 39
Each tip of is moved by a predetermined amount of movement of the drive rod,
Projections 40, 40 formed on the back surface of the substrate 31
It is formed into a triangular shape so that it can be engaged and disengaged with moderation. Both opposing sides 3 of the drive rod 37
Pins 42, 42 are formed at the tips 38a of the blades 8, 38 to fit into shaft holes 41, 41 formed at both ends of the fixed blade holder 24 from the inside.
By fitting the pins 42 into each shaft hole 41 from inside, the blade block 9 and drive rod 37 are held against the base plate 31. Reference numeral 43 indicates a stepped portion formed at each tip of the opposing sides 38, 38 of the driving rod 37, and 44 is formed on the substrate 31 and abuts against the stepped portion 43 when the driving rod 37 moves a predetermined amount. This is the stopper part. These substrates 31, drive rods 37, etc. constitute an operation mechanism unit 45 for the blade block 9, and this unit 45 consists of rib portions 46, 4 formed on the inner wall of the main body case 1.
6 (FIG. 2), the board 31 is firmly fixed to the main body case side.

47 is the other end of the mover 17 and the drive rod 37
This reversing lever 47 is a reversing lever that connects the two sides, and this reversing lever 47 moves the movable element 17 and the drive rod 37 along a plane perpendicular to each other.
A cylindrical bearing portion 48 formed at one end portion 47 a is fitted into a hollow pivot portion 49 formed on the inner wall of the main body case 1 .
As shown in FIG. 4, this pivot portion 49 has a boss portion into which one of the screw bodies 6 for fixing the case is screwed. 50 is an engagement recess formed in one end 47a of the reversing lever 47 and engaged with the protrusion 51 of the movable element 17; 52 is the reversing lever 47;
This is an engagement protrusion formed on the other end 47b and engaged with the engagement portion 53 of the operating rod 37.

In the above configuration, if the knob 10 is slid to move the mover 17 in the direction of arrow a,
A power switch 21 connected to one end of the motor is first turned on to start the motor 13. moreover,
Due to the displacement of the movable element 17, the reversing lever 47 connected to the other end is rotated counterclockwise, so that the drive rod 37 is pulled back in the direction of arrow b. As the drive rod 37 moves in the direction of arrow b, the edge cutting block 9 rotates clockwise and projects from the back wall surface 1b of the main body case 1. When the knob 10 is operated in the opposite direction, the blade block 9 is rotated counterclockwise and stored in the main body case 1.

Here, since the knob 10 is attached to the side wall surface 1c of the main body case 1, avoiding the back wall surface 1b on which the blade block 9 is attached, the blade block 9 is attached when in use.
This prevents the knob 10 from directly receiving hair debris flying from the side, thereby eliminating the possibility of causing discomfort to the user.

Furthermore, even if the wall surfaces of the blade block 9 and the knob 10 are set differently, by providing the reversing lever 47, the blade block 9 can be moved in and out by operating the knob 10. In particular, in this case, the reversing lever 47 is moved by the operating force of the knob 10.
Even if a twisting force is applied to the pivot portion 49, since the pivot portion 49 is hollow and the screw body 6 for fixing the case is inserted through the pivot portion 49, the screw body 6 will not be attached to the pivot portion 49. To act as a reinforcing member,
Damage to the pivot portion 49 due to the above-mentioned twisting force can be effectively prevented.

In the above embodiment, the screws 6 for fixing the split cases 4 and 5 are used to reinforce the pivot portion 49 of the reversing lever 47. 4,5
Even if the pivot portion 49 is reinforced with the screw body 6 for fixing to the holder, the same effect as described above can be obtained.

As described above, according to this invention, the power switch 21 and the edge shaving blade block 9 that rotates in and out are mounted on the main body case 1, and the slide operation knob mounted on the outer wall of the main body case 1 is mounted on the main body case 1. 10
is connected to the mover 17 on the inner wall side of the main body case 1,
One end of this mover is connected to the power switch 21, and the other end is connected to the rotary in/out operation side of the blade block 9, and a sliding moderation part is arranged at an intermediate position of this mover 17. Therefore, an excellent sense of control can be obtained and the structure can be simplified.

[Brief explanation of the drawing]

Fig. 1 is an external view showing an example of the electric shaver according to this invention, Fig. 2 is a partially cutaway plan view of the electric shaver, and Fig. 3 is a diagram of the edging blade block of the electric shaver. FIG. 4 is an exploded perspective view of the loading/unloading mechanism, and an enlarged sectional view of the main parts thereof. 1...Body case, 9...Blade block, 10...
...Slide operation knob, 17...Mover, 21...
...Power switch.

Claims (1)

[Scope of utility model registration request] The power switch 21 and the edge shaving blade block 9 that rotates in and out are attached to the main body case 1, and the slide operation knob 10 attached to the outer wall of the main body case 1 is connected to the movable member on the inner wall side of the main body case 1. 17
One end of this mover is connected to the power switch 21, and the other end is connected to the rotation/extraction operation side of the blade block 9, and the sliding moderation part is connected to the middle of this mover 17. An electric razor that is placed in a position.