JPS6355355B2 - - Google Patents

Description

[Detailed description of the invention] (Conventional technology) The present invention relates to an electric shaver.

(Background technology) Conventionally, the length of the electric shaver body was, for example, 70 mm.
If the front and rear are small and the charging plug is configured to protrude and retract freely, as shown in Figure 13, the operation of protruding the plug 12' is performed by grasping the electric shaver body 1' with the left hand and the right hand. If you do this, you will have to hold the power on/off switch handle 4', which may cause the switch to turn on or touch the blade attachment/detachment button 8', etc.
There was a drawback that it was difficult to perform the protrusion operation of 2'.
Note that the A-A′ direction in the diagram is the switch operation direction, and the B-A′ direction is the switch operation direction.
The B′ direction is the plug protrusion direction.

In addition to the above-mentioned drawbacks, this type of electric shaver also has a structure in which the protruding direction B-B' of the plug 12' and the switch operation direction A-A' are the same, as shown in FIG. However, in this case, there was a drawback that the switch was more easily turned on while the plug 12' was being operated.

Furthermore, as shown in FIG. 15, the plug 12' protrudes horizontally from the lower end of the housing body 2', so when the plug 12' is inserted into the outlet C during charging, it is unstable and the electricity is The razor body 1' was prone to fall down as shown by the arrow, and there was a risk that the plug 12' would come off from the outlet C.

(Object of the Invention) The present invention has been proposed in view of the above points, and its purpose is to prevent malfunctions by configuring the switch handle and plug cover to operate in different directions, and to provide an electric shaver that is easy to use. Our goal is to provide the following.

Another object of the present invention is to provide an electric shaver that can be stably attached to an outlet during charging.

(Disclosure of invention) The present invention will be described below with reference to the drawings.

1, 2, and 3 show an embodiment of the present invention. This electric shaver main body 1 is relatively small, with a length of about 70 mm, and has blades provided at the upper end. The part has a reciprocating blade configuration. In the illustrated state, one side surface of the rectangular housing main body 2 has a vertical direction, that is, a B-
A plug cover 3 is provided that is movable along the B' direction. Further, a switch handle 4 which can be moved in the horizontal direction A-A' is provided at the upper center of one surface of the housing body 2, in other words at a position approximately in the middle of the electric shaver body 1. A lock handle 5 which can be moved in the horizontal direction is provided on one side of the housing body 2 to lock the switch handle. Note that an outer cutter frame 7 having an outer cutter 6 is provided above the housing body 2 so as to be detachable from the housing body 2 via a blade attachment/detachment button 8 . Note that a driving motor 17 and a rechargeable battery 18 are provided inside the housing body 2.

A more detailed explanation will be given below with reference to FIGS. 3 to 10. As shown in FIG. 6, a hook 4a is protruded from the rear end of the switch handle 4 that turns on and off the switch for supplying electricity from the rechargeable battery 18 to the motor 17. The on/off handle position is regulated by an elastic click piece 1a that is engaged with the mounting position of the handle and formed on the other upper end of the housing 2A. In addition, an on/off protrusion 4b is formed at the center of the back of the switch handle 4, and the switch handle 4 is designed to turn on/off the switch.
As the switch is moved, as shown in FIGS. 4 and 7, the switch contact spring 9 provided in the housing body 2 consisting of the housings 2A and 2B is pressed inward, and the switch contact spring 9 is disposed opposite to this. The switch is turned on by contacting the switch contact plate 10 that has been turned on.

Further, as shown in FIGS. 6 and 8, the switch lock engages the lock handle 5 with the hook 5a from the front side of the housing 2A.
Attach the lock lever 11 to the housing boss 1b on the back side.
When the lock handle 5 is moved in the lateral direction, the lock lever 11 slides on the lock handle boss 5b using the housing boss 1b as a fulcrum. The position is controlled by the click piece 11a and the click protrusion 1c. Note that the locked state refers to a case where the locking piece 4c of the switch handle 4 that also serves as a hook contacts the R-shaped end 11b of the lock lever 11, making it impossible to move the switch handle 4 in the lateral direction.

Furthermore, as a protruding means for a plug for charging a rechargeable battery, as shown in FIGS. 3a is integrally formed, and below it is a cam 13 made of an insulator that is integrally provided to connect the bases of the pair of plugs 12.
First and second protruding ribs 3b and 3c, which can be engaged with each other, are formed to protrude inwardly. Furthermore, a pair of long grooves 3d are formed in the plug cover 3 to allow the plug 12 housed in one side of the main body of the housing 2 to protrude to the outside. That is, as shown in FIGS. 6 and 10, a pivot portion 13a is formed at the base of the plug 12, and correspondingly, pivot portions 1c' and 1 are formed in the housing body 2, respectively.
d' is formed, and the plug 12 is rotatable through these. The plug 12 is normally housed within the housing body 2 (when not charging).

In addition, on the inner surface of the side wall 1e formed at the upper side of the housing body 2, there are first and second recesses 1f, which are spaced apart along the length direction and can be freely engaged with and detached from the click protrusion 3a, respectively. 1g is formed, and the plug cover 3 is assembled with the housings 2A, 2B held between a pair of hooks 1h formed on the lower inner side so that the protruding pieces 3a are engaged with the recesses 1f, 1g. ing. Then, when a force is applied to move the plug cover 3 downward, the protruding piece 3a comes off from the first recess 1f, and the plug cover 3 moves downward. Therefore, the first protruding rib 3b is
A radially extending first meshing portion 13a formed in 3
This causes the cam 13 and eventually the plug 12 to rotate clockwise in the illustrated state about its pivot point.
Then, if you push down the plug cover 3 further, the second
The protruding rib 3c engages with the second engagement part 13b formed at an angle of 90 degrees with respect to the first engagement part 13a, thereby further rotating the plug 12. Plug 12 is 90
When the projecting piece 3 is rotated and protruded to the outside,
Since a is engaged with the second recess 1g, that state can be maintained. Further, the inner end of the plug 12 is configured to be in contact with a pair of plug contact springs 14 and 15, so that charging can be performed as is well known. In order to store the plug 12, the plug cover 3 is forcibly moved upward, and the plug 12 is stored in a predetermined position within the housing body 2 by an operation opposite to the above, and in this case, as shown in FIG. As such, the first engaging portion 13a is held between the first protruding rib 3b and the step portion 3g formed at the lower part of the inner wall of the plug cover 3, and the plug 12 is fixed. Therefore, the plug cover 3 moves in and out of the lower end of the housing body 2, causing the plug 12 to protrude.

Next, the drive means for the blade will be explained with reference to FIGS. 3 and 6. A motor 17, a battery 18, etc. are arranged in parallel on a chassis 16 provided within the housing body 2. In this case, the motor 17 is located on the opposite side of the plug cover 3, and the battery 18
is installed adjacent to the motor 17 on the plug cover 3 side, and the motor 17 is driven by turning the switch handle 4 on and off. An eccentric balancer 19 is attached to the motor shaft 17a of the motor 17, and the eccentric balancer 19 converts the rotational motion of the motor 17 into reciprocating motion together with the eccentric balancer 19. connected. The drive element 20 is connected to an inner cutter body 22 having a large number of inner cutters 21, and is connected to the housing body 2.
A short cylindrical drive shaft 20a with a bottom located approximately at the center of the housing body 2, a slightly thick base 20b integrally provided with the drive shaft 20a and extending in the width direction of the housing body 2; Elastic legs 20c, 20 which have elasticity extend downward at both ends of 20b and are bent and extend upward.
d, and mounting portions 20c' and 20d' which are bent outward in an L-shape at the upper ends of these elastic legs 20c and 20d, respectively.
0c' and 20d' are attached to attachment parts formed corresponding to the upper part of the housing main body 1, and the eccentric balancer 19 is connected at a position on one end side of the base 20b. elastic legs 20
It is supported so as to be able to reciprocate through the terminals c and 20d.
Note that a guide bush 2 is provided on the upper part of the drive shaft 20a.
3 is provided, a drive pin 24 is provided through this guide bush 23, and the drive pin 24 protrudes to the outside.
Both ends of the blade are connected to a mounting portion of the inner blade body 22. Further, an inner cutter push-up spring 25 in the form of a coil spring is contracted inside the drive shaft 20a, thereby pushing up the inner cutter body 22 upwardly and bringing the inner cutter 21 into elastic contact with the inner surface of the outer cutter 6.

Thus, a space S is formed above the plug cover 3 in the housing body 2, and the blade attachment/detachment device 26 can be disposed in this space S, so that the electric shaver body 1 can be made smaller.

The blade attachment/detachment device 26 is disposed in the space S at the upper end of the housing body 2, and includes a blade attachment/detachment button 8 whose operating section is exposed to the outside from the side surface of the housing body 2, and a blade attachment/detachment button 8 and the housing body 2.
and a lock spring 27 compressed between the partition member formed inside the blade attachment/detachment button 8.
The engaging portion 8a formed on the outer cutter frame 7 can be freely engaged with and disengaged from the engaging portion 7a formed on the inner wall surface of the corresponding side portion of the outer cutter frame 7. Then, when the operating part is pushed inside against the spring force of the lock spring 27, the engaging part 8a comes off from the engaging part 7a on the outer cutter frame 7 side.
It is configured such that an outer cutter frame 7 having a net-shaped outer cutter 6 can be removed.

In addition, 28 in FIG. 6 rotates slightly within the housing body 2 as the plug cover 3 moves.
The plug lever 29 is made of an insulating material and the end portion 28a is inserted between the switch contact spring 9 and the switch contact plate 10 when the plug 12 is protruded (see FIG. 4). A module 30 is a dustproof plate provided on the upper surface of the drive element 20.

11 and 12 show another embodiment of the present invention, in which the invention is applied to a rotary electric shaver.

That is, a bottomed cylindrical housing main body 2A is provided with a plug cover 3A that is movable in the vertical direction, and a switch handle 4A that is movable in the horizontal direction is provided above the plug cover 3A. A blade is provided. Note that their specific structures are substantially the same as those of the above-mentioned embodiments.

(Effects of the Invention) As described above, according to the present invention, a drive motor and a rechargeable battery for driving the drive motor are provided inside the housing body having a blade portion at the upper end, and the housing body A switch handle that can be moved in the width direction of the housing body and that operates a switch for energizing the drive motor from the rechargeable battery is provided at the upper center portion of the housing body. It can be moved up and down along the side of the main body,
In addition, a plug cover is provided whose lower part protrudes below the bottom of the housing main body when moving downward, and a base end portion is pivotally attached to the housing main body within the plug cover, and rotates in conjunction with the vertical movement of the plug cover. In addition, the plug cover is configured with a plug that can be freely protruded and stored through a long groove formed in the plug cover, so when inserting or removing the plug, you can hold the main body with one hand and operate the plug cover with the other hand. However, since the operation is perpendicular to the direction in which the switch is operated, there is no risk of erroneously operating the switch, which has the advantage of being easy to use.

In addition, when the plug is inserted into the outlet, the plug cover extends downward, making the main unit more stable, and there is no need to worry about it falling out of the outlet, which has the advantage of ensuring reliable charging.

[Brief explanation of drawings]

1 to 10 show an embodiment of a reciprocating electric shaver according to the present invention, in which FIG. 1 is a front external view of the same, FIG. 2 is a side view thereof, FIG. 3 is an explanatory cross-sectional view, and FIG. The figure is a sectional view taken along the line X--X in Figure 3, Figure 5 is a sectional view taken along the Y-Y line in Figure 3, and Figure 6 is an exploded perspective view.
Fig. 7 is a diagram of the switch operation state when the switch handle is operated, Fig. 8 is a diagram of the switch lock operation state,
Figures 9 and 10 are plug protrusion state diagrams,
1 and 12 show other embodiments of the rotary electric shaver, and FIGS. 13 to 15 show conventional examples, respectively. 2...Housing body, 4...Switch handle, 12...Plug, 3...Plug cover.

Claims (1)

[Claims] 1. A drive motor and a rechargeable battery for driving the drive motor are provided inside a housing body having a blade portion at the upper end, and an upper central portion of the housing body is provided with a movement operation in the width direction of the housing body. a switch handle for operating a switch for energizing the drive motor from the rechargeable battery; the switch handle is disposed on a lower side of the housing body and is movable vertically along the side of the housing body; In addition, a plug cover is provided whose lower part protrudes below the bottom of the housing main body when moving downward, and a base end portion is pivotally attached to the housing main body within the plug cover, and rotates in conjunction with the vertical movement of the plug cover. An electric shaver characterized in that the plug is provided with a plug that can be freely projected and stored through a long groove formed in the plug cover.