JPS5822234B2 - Electric shaver operating block mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an operating block mounting device for an electric shaver.
The motor block is formed by fitting the motor mount 8 onto the motor 17 that drives the trimmer block B for shifting and the trimmer mount 19. The block B is pivotally supported to form an actuation block C, and the actuation block C is inserted into the body 4, and an elastic locking arm 19e is provided protruding from the trimmer mount 19 in a locking horizontal groove 1h recessed in the body 4. This invention relates to an electric shaver operating hook mounting device, characterized in that it is configured by locking an electric shaver.

In the conventional example, the operating parts such as the motor and trimmer block were not attached to the motor mount or trimmer mount to form the operating mechanism, which resulted in the disadvantage that it took time and effort to assemble the operating parts, and the problem of the trimmer block. There was a drawback that the installation was not reliable, it generated noise, it did not have enough push-in strength during sharp bending, and it was prone to failure.

The present invention was made in view of the drawbacks of the conventional example, and
The first object of the present invention is to simplify the assembly by forming the operating parts into blocks, and also to ensure the installation of the trimmer block, thereby preventing noise and improving the push-in strength in the event of twisting, thereby eliminating failures. It is possible to provide an electric shaver operating block mounting device.

The present invention will be described below in detail according to the illustrated embodiments, including an outer cutter 26, an inner cutter 25, a trimmer driver 24, a push-up spring 23, and a dustproof plate 22.
is assembled into the trimmer base 27 as trimmer block B.
shall be.

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 mounting plate 27c of the pivot plate portion 27d.

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

The trimmer mount 19 protrudes from the front of both ends of the base portion 19d with tip protrusions 19j having tip holes 19a facing each other, and has an elastic engagement member above the center of both ends of the base portion 19d. A stop arm 19e protrudes, and its free end is bent outward to provide an upper boss 19c.

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

An upright plate 19f is provided at the rear end of the base portion 19d.

To explain the switching sliding plate 21, two mounting arms 21d protrude forward from the plate body 21c, and a boss 21a extends outward at a right angle from the tip of the mounting arm 21d.
It is installed protrudingly.

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 set.

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 21. , switching sliding plate 2
1 into the drive hole 27b of the trimmer base 27, the sliding boss 21b of the switching sliding plate 21 is slidably inserted into the guide groove 19b of the trimmer mount 19, and then the sliding boss 21b of the Undercut portion 21 protruding from the side surface
f 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.

Next, the motor mounting base 8 is fitted onto the motor 11 from above the motor 17 .

The motor mounting base 8 has a substantially cylindrical shape with an opening at the lower end, a shaft through hole 8f is bored in the center of the upper surface 8e, a guide groove 37 in the front and back direction is recessed in the rear part, and a screw 9 is provided. motor 1
It is fixed at 7.

Furthermore, fit the lower end opening hole 8b of the motor mount 8 into the boss upper pin 19b of the trimmer mount 1a, insert the three ribs 81 at the rear end of the motor mount 8 into the square hole 19i of the trimmer mount 19, and then The mounting base 19 and the motor mounting base 8 are positioned and fixed.

In this way, the motor 1T and the trimmer block B are integrated with the trimmer mount 19 and the motor mount 8 to form an operating block C.

A joint boss 8a protrudes from the upper front surface of the motor mount 8, and by inserting the trimmer joint 10 into the joint boss 8a via the ring 11 and press-fitting the joint bearing 36 into the boss 8a of the motor mount 8. A trimmer joint 10 is rotatably attached.

The swing lever 7 has a pot-shaped drive hole 7d.
The narrower side of the drive hole 7d is used as the trimmer joint swinging part 7e, and the wider side is used as the main blade rotating part 7f.

The front end of the swing lever 1 has a spherical portion 7b projecting downward, and the rear end has a fulcrum hole 7a.

A guide pin 35 is inserted into the fulcrum hole 7a, the 'J song, and the fulcrum pivot hole 5a of the drive rod frame 5, and the tip is caulked to form the drive rod block F.

1. 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 5 on both sides of the hole 5d.
c is provided, and the rear edge of this upper surface convex portion 5c is inclined in a tapered shape.

A fulcrum pivot hole 5a is provided at the rear end of the drive rod frame 5, and a horizontal boss 5b is bored outwardly 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 3γ of the motor mount 8 are
is fitted to serve as a guide when the drive frame hook F moves back and forth.

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

In this state, on the side of the motor mounting base 8,
A hollow hole 12a formed in the center of the arm portion 12d of the lever 12 is fitted into the hole 12a formed in the center of the arm portion 12d of the lever 12.

This lever 12 has a horizontal plate 1 at the lower end of two arm parts 12d.
2e, with a middle hole 1 in the center of the arm part 12d.
2a, an upper hole 12b is bored at the upper end, and a horizontal plate 12e
Two pilot holes 12c are bored in the hole.

The upper hole 12b of this lever 12 is fitted into the horizontal boss 5b of the drive rod frame 5, and the lower hole 13c is switched and engaged with the sliding boss 21b of the sliding plate 21.

Insert the actuating block C assembled in this way into the body back part 1, and elastically insert the upper boss 19c of the trimmer mount 19 into the locking horizontal groove 1h at the lower end of the cutout groove 1a provided on the upper inner surface of the body back part 1. Fit and secure.

The integrated actuation block C can be assembled by simply fitting it elastically into the locking horizontal groove 1h of the body back 1, so the assembly is extremely simple and requires no effort. In addition, since the trimmer block B is integrated into the operating block C, the trimmer block B can be installed securely, can sufficiently withstand the pushing force at the time of sharp warping, and has the advantage of not breaking down. .

When the actuating block C is inserted and fixed into the body back 1, the trimmer block B and the finger grip 2 of the switching sliding plate 21 are accessed through the storage hole 1d drilled in the upper part of the back 1c of the body back 1.
1e is exposed to the outside.

This body back part 1 engages with the body front part 2 to form a body 4. Also, a module block 18, a switch spring 28, a lock spring 29, a lock button 30,
A switch block G consisting of a switch bundle 30 and a switch frame 32 is inserted into the body back part 1.

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

The blade mount 3 is disc-shaped and has a lower protrusion 3a protruding from its lower surface.When the blade mount 3 is inserted into the blade mount insertion hole 2b, the lower protrusion 3a is inserted into the front part 2 of the body. It is adapted to be rotationally engaged with an engaging convex portion 2a formed on the inner surface.

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, it is screwed to the mounting boss 8d of the motor mount 8 through the round hole 3b of the blade mount 3.

The eccentric pin 16 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 eccentric cam portion 16a is fitted into the drive hole Td of the eccentric cam portion 16a.
The locking teeth 16b provided on the upper part of the drive rod frame 5 fit into the pin protrusion hole 5d, and the central shaft 16C that protrudes from the center of the eccentric pin 16 protrudes upward from the center hole 3c of the blade mount 3. A coupling 15 for rotationally driving the main blade 38 for shaving is slidably inserted into the central shaft 16C of this rod, and the lower surface of this coupling 15 is connected to the upper surface convex portion 5c of the drive rod frame 5. There is a sliding contact.

Further, a compression coil spring 14 is inserted into the center shaft 1'6C, and a fixed ring 13 is fixed to the tip of the center shaft 16c.
5 so as to press downward.

When the switching sliding plate 21 is moved upward and turned on, the trimmer block B rotates 90 degrees using the tip hole 19a of the trimmer mounting base 19 as a fulcrum, so that it is perpendicular to the body back 1 as shown in FIG. While protruding, the switching sliding plate 21 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 pilot hole 12c of the lever 12 is fitted, 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 frame block F moves in the direction A in FIG. The joint oscillating portion 7e is fitted, and the rotation of the motor 11 causes the oscillating lever 7 to reciprocate about the fulcrum hole γa.

At this time, the first drive rod frame 5 also moves in the A direction, so the upper surface convex portion 5c pushes up the coupling 15, and the coupling 15 and the engagement tooth 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 will be driven.
Since the trimmer joint 10 is fitted with the tip groove 10a of the motor mounting base 8, the trimmer joint 10 is fitted with the boss 8a of the motor mounting base 8 in accordance with the reciprocating movement of the swing lever 1.
It moves back and forth around the center.

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 cylindrical portion 24 of the trimmer driver 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 blade 25 of the trimmer block B
At the same time, the blade 25, 26 protects the user from 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 portion 16a of the eccentric pin 16 fits into the main blade rotating portion 7f of the drive hole 7d of the swinging lever 1, causing the swinging lever 7 to slide in the A direction. The dynamic lever γ stops reciprocating.

Furthermore, as the drive rod frame 5 moves in the A direction with the swing lever 7, the upper surface convex portion 5c of the drive rod frame 5 also moves in the A direction, so the coupling 15 is lowered by the action of the compression coil spring 14, and the eccentric pin The 16 engaging teeth 16b engage with the coupling 15, and the main blade 38 rotates.

Note that the click spring mounting hole 39 provided on the trimmer mounting base 19
A click spring 40 may be inserted between the center hole 21h of the switching sliding plate 21 to give the movement of the switching sliding plate 21 a click characteristic.
1 and the click spring 40 in more detail.As shown in FIGS. 11 and 12, one end of the click spring 40 is pressed against the lower surface of the trimmer mounting base 9, and the other end is pressed against the lower surface of the trimmer mounting base 9. It engages with the center hole 21h of the plate 21.

Further, the central coil portion 40a of the click spring 40 is connected to the guide tongue piece 11' that constitutes the guide groove 19b of the trimmer mounting base 19.
slide on top.

The click spring 40 is constantly held between the lower surface of the trimmer mount 19 and the guide tongue piece 19g during movement, and by doing so, it is possible to prevent it from coming off during movement. be.

[Brief explanation of the drawing]

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, FIG. 4 is a perspective view of the actuating block of the present invention, FIGS. 5 and 6 are exploded perspective views of the same as above,
8 is a longitudinal sectional view of the operating portion of the present invention, FIG. 8 is a longitudinal sectional view taken along the line A-A in FIG. 7 of the present invention, and FIG. 9 is a longitudinal sectional view taken along the BB direction shown in FIG. 10 is a rear view of an embodiment of the present invention, FIG. 11 is a vertical sectional view of the click spring mounting portion of the present invention, FIG. 12 is a perspective view of the same, 1h is a locking horizontal groove, 4 is the body, 8 is the morph mount, 1γ is the motor,
19 is a trimmer mounting base, 19e is a locking arm, and 38 is a main blade.

Claims (1)

[Claims] 1 A motor mount is fitted onto the motor that drives the main blade for shaving and a trimmer block for diversion to form a motor block, and the motor block is fixed to the trimmer mount and the trimmer is attached to the trimmer mount. The block is pivotally supported to form an actuation block, and the actuation block is inserted into the body, and an elastic locking arm protruding from the trimmer mount is locked in a locking horizontal groove curved inside the body. An electric shaver operating block mounting device characterized by: