JPS5823115B2 - Electric shaver remote control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric shaver that is equipped with a main blade and a trimmer block and is capable of selectively operating both, and particularly in one in which the trimmer block is placed apart from the main blade. The present invention relates to a remote control device for a drive part of an electric shaver.

Electric razors that were able to selectively operate both the main blade and trimmer block were already developed in 1973.
One disclosed in Japanese Patent No. 9389 is known.

When a swinging lever for converting the rotation of the motor into swinging motion is moved to a position where it engages with the motor, the swinging lever releases the coupling between the motor and the main blade.

By the way, in the one shown in this publication, the main blade and trimmer block are placed adjacent to each other, but due to the position of the main blade in the body, the trimmer block is placed adjacent to the main blade. If the trimmer block makes it difficult to cut, that is, if the main blade is placed forward rather than at the top of the body, then
The most preferable form is to arrange the trimmer block on the back side of the body as shown in Japanese Patent No. 21958.

However, if such a configuration is adopted and the main blade and trimmer block can be selectively operated as shown in the former publication, the main blade will be placed on the main blade side in terms of operation. This increases the distance between the swing lever and the trimmer block, which makes it difficult to directly drive the trimmer block with the swing lever, and it is recommended to place it near the trimmer block in terms of operability and usability. Therefore, it is difficult to transmit the desired movement of the operating section to the swing lever and move the swing lever to switch the power transmission.

Therefore, it becomes necessary to place some kind of member between the trimmer block and the swing lever or between the operating section and the swing lever, but adding these members increases the total number of parts, which tends to make assembly difficult. .

The present invention has been made in view of these points, and its purpose is to eliminate the problem of concentrating the parts in one place because the parts are assembled around the motor, despite the large number of parts. An object of the present invention is to provide a remote control device for a drive part of an electric shaver that is easy to assemble.

To explain the present invention, a swing lever for converting the rotation of the motor into swing is arranged on one end surface of the motor where the motor shaft to which the main blade is connected is located, and a swing lever is arranged on the other end surface of the motor to convert the rotation of the motor into swing motion. A trimmer block is placed on the side of the motor, and a switching sliding plate is placed for single-drive switching between the main blade and the trimmer block. A trimmer joint that transmits the swinging motion to the trimmer block is arranged, and the switching sliding plate and swinging lever are connected to the other side of the motor, and the swinging lever is moved in accordance with the movement of the switching sliding plate. A lever is arranged to switch the power transmission of the motor between the main blade and the swinging lever.

It is equipped with a lumber joint, a lever, a trimmer block, and a switching sliding plate as an operating section.

The present invention will be described in detail below according to illustrated embodiments.

Outer blade 26, inner blade 25, trimmer 7 driver 24, push-up spring 2
3. A monowo trimmer block B is constructed in which the dustproof plate 22 is assembled into the trimmer base 27.

The trimmer base 27 has an L-shaped bent outer blade mounting plate portion 27c.
Pivot plate portions 27d are erected facing each other on the inner surface of the
A pivot hole 27a is provided at the tip of the pivot plate portion 27d, and a drive hole 27b is provided adjacent to the bent portion of the outer blade attachment portion 27c of the pivot plate portion 27d.

The trimmer 1 driver 24 has a cylindrical portion 24a that projects upward.

The trimmer mount 19 has tip protrusions 19j having tip holes 19a protruding from the front of both ends of the base portion 19d, and an engagement arm 19e extending upward from the center of both ends of the base portion 19d. The upper boss 19c is formed by bending the free end of the upper boss 19c outward.

Two guide grooves 19b are bored in parallel to each other in the base portion 19d.

At the rear end of the base portion 19d, an upright plate 19f is provided.

The switching sliding plate 21 will be explained.

Two attachment arms 21d protrude forward from the plate body 21C, and a boss 21a protrudes outward at a right angle from the tip of the attachment arms 21d.

Two sliding bosses 21b are erected on the upper surface of the plate 21c, and an uneven surface is provided on the lower surface of the rear end to provide a finger rest in the portion 21.
e is provided.

The trimmer block B is rotatably attached to the trimmer mount 19 by press-fitting the support pin 20 into the tip hole 19a of the trimmer mount 19 and the pivot hole 27a of the trimmer base 27. , switching sliding plate 2
The first boss 21a is inserted into the first drive hole 27b of the trimmer base 27, and the sliding boss 21b of the switching sliding plate 21 is slidably inserted into the guide groove 19b of the trimmer mounting base 19. Undercut part 2 protruding from the side of
1f is hooked onto the end of the guide groove 19b of the trimmer mount 19, and the switching sliding plate 21 and the trimmer mount 19 are slidably engaged.

Trimmer block B assembled in this way, switching sliding plate 2
1. Install the trimmer base 27 and the trimmer mount 19 into the body back 1.

In this case, the upper boss 19c of the trimmer mount 19 is fitted into the notched groove 1a provided on the upper inner surface of the body back 1 and fixed.

In this case, the trimmer block B and the switching sliding plate 21
The finger hook portion 21e is exposed to the outside.

This body back part 1 engages with the body front part 2 to form a pair of bodies 4.

Next, the eccentric pin 16 and the coupling 15 are attached to the motor shaft 17a.
゜Insert the compression coil spring 14 and the fixed ring 13 into the lower opening of the motor mount 8.

This motor mounting base 8 has a substantially cylindrical shape with an open bottom end, and has a shaft hole 8f bored in the center of the upper surface 8e.
A guide groove 37 in the front-rear direction is recessed therein, and is fixed to the motor 17 with screws 9 (7).

Furthermore, fit the lower end opening hole 8b of the motor mounting base 8 into the boss upper pin 19h of the trimmer mounting base 19, and insert the three non-ribs 81 at the rear end of the motor mounting base 8 into the square hole 519i of the trimmer mounting base 190.
, and position and fix the trimmer mount 19 and motor mount 8.

A joint boss 8a protrudes from the front L portion of the motor mount 8. The trimmer joint 10 is inserted through the joint boss 9a and the K ring 11, and the joint bearing 36 is press-fitted into the joint/boss 8a of the motor mount 8. This allows the trimmer joint 10 to be rotatably mounted.

The swinging lever 7 has two pot-shaped drive holes 7d, and the narrower one of the drive holes 7d is connected to the trimmer joint swinging part 7.
e 7, and the wider side is the main blade rotating part 7f.

The front end of the swing lever 7 has a spherical part 7b projecting downward, and the rear end of the swing lever 7 has a fulcrum hole 7a.

A guide pin 35 is inserted into the fulcrum hole 7a, the ring 6.1, and the fulcrum pivot hole 5a of the driving rod frame 5, and the tip is caulked to form the driving rod block F.

The drive rod frame 5 is plate-shaped, and has an elliptical eccentric pin protrusion hole 5d in the center, and upper surface convex portions 5c on both sides of the hole 5d.
The rear edge of the upper convex portion 5c is tapered.

A fulcrum pivot hole 5a is provided at the rear end of the drive rod frame 5, and a horizontal boss 5b is provided outwardly protruding from the side surface.

This drive rod block F is positioned on the upper surface of the motor mount 8, and the lower part of the guide pin 35 and the guide groove 39 of the motor mount 8
are fitted to serve as a guide when the drive rod block F moves back and forth.

At this time, the spherical portion γb provided at one end of the swing lever 7 fits into the tip groove 10a of the trimmer joint 10.

In this state, a horizontal protrusion 8c that protrudes from the side surface of the motor mounting base 8
A hollow hole 1 is formed in the center of the arm portion 12d of the lever 12.
2a are fitted.

This lever 12 has a horizontal plate 1 at the lower end of two arm parts 12d.
2e is installed, and the inner part 1 is installed in the center of the arm part 12d.
2a, an upper hole 12b is bored at the upper end, and a horizontal plate 12e
2-work W12c is perforated on the inside.

The upper hole 12b of this lever 12 is fitted into the horizontal boss 5b of the drive rod frame 5, and these form a motor block A.

This motor block A is inserted into the body back 1 so as to be positioned above the switching sliding plate block E.

At this time, the pilot hole 12c of the lever 12 fits into the sliding boss 21b of the switching sliding plate 21.

Also, the module block 18, switch spring 28, lock spring 29, lock button 30, switch handle 3
1 and a switch frame 32 are inserted into the body back 1.

The front part 2 of the body is fitted and fixed to the back part 1 of the body, and has a blade mount insertion hole 2b formed in the upper front part.

The blade mount 3 is disc-shaped and has a lower protrusion 3a protruding from its lower surface.When inserting the blade mount 3 into the blade mount insertion hole 2b, insert the lower protrusion 3a into the front part 2 of the body. Inner Hr, c
It is designed [τ] so as to be rotationally engaged with the provided engagement convex portion 2a.

The body front part 2 with the blade mount 3 engaged in this way is fitted onto the body back part 1, and the body front part 2 is locked with a hook 1e that projects upward from the inner surface of the body back part 1, and the screw is screwed. At 34, the body front part 2 and the body back part 1 are fixed.

Further, the blade mount 3 is fixed to the motor block A by screwing it to the mounting boss 8d of the motor mount 8 through the round hole 3b of the blade mount 3.

The eccentric pin 36 is fitted onto the motor shaft 17a of the motor 17, and the eccentric cam portion 16a of the eccentric pin 16 is connected to the swing lever 7.
The locking tooth 16b provided on the upper part of the eccentric cam portion 16a is fitted into the pin protrusion hole 5d of the drive rod frame 5, and protrudes from the center of the eccentric pin 16; The central shaft 16c that can be pulled out projects upward from the central hole 3c of the blade mount 3, and a coupling 15 for driving the main blade 38 for shaving by one rotation is attached to this central shaft 16c.
is slidably inserted, and the lower surface of this coupling 15 is in sliding contact with the upper surface convex portion 1 5c of the drive rod frame 5.

Further, a compression coil spring 14 is inserted into the central shaft 16c, and a fixed ring 13 is fixed to the tip of the central shaft 16c, i.
The compression coil spring 14 presses the coupling 15 downward.

Here, if we organize the positional relationships among the switching sliding plate 21, the motor 17, the trimmer block B, the lever 12, the main blade 38, and the swinging lever 7, we can see the front surface 4a of the body 4 as shown in FIG.
The main blade 38 is attached to the back part 4b of the body 4, and the trimmer block B is attached to the back part 4b of the body 4.
and a switching sliding plate 21, a motor 17 is arranged between the trimmer block B and the main blade 38, and a swing lever 7 is arranged between the motor 17 and the main blade 38. It is.

The horizontal plate 12e of the lever 12 shown by the two-dot chain line is engaged with the sliding boss 21b of the switching sliding plate 21, and the arm portion 12d of the lever 12 is a drive rod frame on which the swinging lever γ is movably attached. 5, and the swing lever 7 can be remotely controlled by a switching sliding plate 21.

Since the swing lever 7 can be controlled remotely in this way, the structure of the driving part in which the swing lever T is provided can be simplified, and further, the trimmer joint 10 located on the peripheral surface of the motor 17 can Since it is arranged on a different side from the horizontal plate 12e of the lever 12, processing and assembly can be facilitated.

However, when the switching sliding plate 21 is moved upward to turn it on, the trimmer block B rotates 90 degrees using the tip hole 19a of the trimmer mounting base 19 as a fulcrum, and as shown in FIG. 1 and a switching sliding plate 21 protruding at right angles to
covers the storage hole 1d of the body back 1 and also serves as a dustproof function.

At this time, the sliding boss 21b of the switching sliding plate 21 is connected to the lever 12.
Since the lever 12 is fitted into the pilot hole 12c of the motor mounting base 8, the lever 12 rotates around the horizontal protrusion 8c of the motor mounting base 8, and the upper end of the lever 12 moves in the opposite direction to the lower end.
Since the upper end hole 12b and the horizontal boss 5b of the drive rod frame 5 are fitted, the drive rod block F moves in the seven directions in FIG. The swinging portion 7e is fitted, and the rotation of the motor 1T causes the swinging lever 7 to reciprocate about the fulcrum hole 7a.

At this time, the drive rod frame 5 also moves in the direction A, so the upper surface convex portion 5
c pushes up the coupling 15, the coupling 15 and the engagement teeth 16b of the eccentric pin 16 are disengaged, the main blade 38 stops rotating, and the drive is separated.

In this state, the inner cutter 25 of the trimmer block B is driven.
Since the trimmer joint 10 is fitted with the tip groove 10a of the trimmer joint 10, the motor is connected to the trimmer joint 10 in accordance with the reciprocating movement of the swing lever 7.

It reciprocates around the boss 8a of the joint 8.

Therefore, the lower end groove 10b of the trimmer joint 10 reciprocates in the opposite direction to the upper end groove 10a, but the trimmer block B
The trimmer drive element 240 cylindrical part 24 is rotated and protruded.
Since the lower end groove 10b of the trimmer joint 10 is fitted into the lower end groove 10b of the trimmer joint 10, the trimmer driver 24 reciprocates in accordance with the movement of the lower end groove 10b of the trimmer joint 10, and therefore the inner cutter 25 of the trimmer reciprocates. .

Conversely, when the switching sliding plate 21 is slid downward to turn it off, the trimmer block B rotates and is stored in the storage hole 1d of the body back 1, and the cylindrical portion 24 of the trimmer driver
a comes off from the lower end groove 10b of the trimmer joint 10.

Since the trimmer block B is completely stored in the storage hole 1d in this way, the inner blade 2 of the trimmer block B
5 is protected, and at the same time, the inner cutter 25 and the outer cutter 26 do not cause injury.

At this time, the swinging lever 7 slides in the A direction due to the action of the lever 12, and the eccentric cam 16a of the eccentric pin 16 fits into the main blade rotating portion 7f of the drive hole 7d of the swinging lever 7, causing the swinging Lever 7 no longer moves reciprocally.

Furthermore, when the first driving rod frame 5 moves in the A direction with the swing lever 7, the upper surface convex portion 5c of the driving rod frame 5 also moves in the A direction, so that the coupling 15 is connected to the compression coil spring 1.
40, the engagement tooth 16b of the eccentric pin 16 and the coupling 15 engage with each other, and the main blade 38 rotates.

Note that 40 is a click spring that gives the switching sliding plate 21 a click characteristic.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the trimmer block according to the present invention when it is closed, FIG. 2 is a perspective view of an embodiment of the same when the trimmer block is opened, and FIG.
The figure is an exploded perspective view of the same as above, Figure 4 is a perspective view of an embodiment of the motor block of the present invention arranged on a switching sliding plate block, Figures 5 and 6 are exploded perspective views of the same as above, 7
8 is a rear view of the same as above, FIG. 9 is an enlarged longitudinal sectional view of the operating portion of the present invention, and FIG. 10 is a longitudinal sectional view of the present invention taken along the line AA shown in FIG. 9. 11 is a longitudinal sectional view taken along the line B-B shown in FIG. 9 of the present invention; FIG. 12 is a longitudinal sectional view taken along the line C-C shown in FIG. 9 of the present invention; 4 is a body; , 4a is the front, 4b is the back, 7 is the swing lever, 10 is the trimmer joint, 12 is the lever, 17 is the motor, 2
1 is a switching sliding plate, and 38 is a main blade B which is a trimmer block.

Claims (1)

[Claims] 1 Place a swinging lever that converts the rotation of the motor into swinging on one end of the motor where the motor shaft to which the main blade is connected, and place a trimmer block on the other end of the motor and A trimmer joint that has a switching sliding plate for switching the drive between the blade and the trimmer block, connects the swinging lever and the trimmer block on one side of the motor, and transmits the swinging of the swinging lever to the trimmer block. The switching sliding plate and the swinging lever are connected to the other side of the motor, and the swinging lever is moved according to the movement of the switching sliding plate, and the power transmission of the motor is connected to the main blade and the swinging lever. 1. A remote control device for one drive part of an electric shaver, characterized in that a lever is arranged for switching between a movable shaver and a movable shaver.