JPS6258754B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to electric shavers, and in particular to the arrangement of operating members such as switch handles and lock handles.

[Background Art] Electric razors usually have a vertically elongated shape, and therefore, shaving operations are performed while holding the housing with the thumb on the front of the housing and the other fingers around the back of the housing. It's summery. However, in conventional electric shavers, each operating member such as a switch handle is operated in the longitudinal direction of the housing, so the direction of the thumb placed on the housing does not match the operating direction of the operating member. It had the disadvantage of poor operability. This is particularly noticeable in reciprocating type blades in which the movable blade reciprocates.

[Object of the Invention] The present invention has been made in view of the above points, and its object is to provide an electric shaver in which each operating member can be easily operated with the thumb of the hand holding the housing. It is in.

[Disclosure of the Invention] The electric shaver according to the present invention has a switch handle for a power switch and a switch handle for a power switch on the front surface of a rectangular housing in which a blade section consisting of an outer cutter and a movable cutter is disposed at the upper end. A lock handle for locking the switch handle is installed as an operating member, and the switch handle and the lock handle are arranged in a direction inclined with respect to the vertical direction of the housing, and the lock handle is located on one side of the housing. A switch handle, which is disposed on the side edge and whose operating direction is in the above-mentioned inclined direction, and which is of a wave type with a swing axis inclined with respect to the vertical direction, is disposed closer to the blade than the lock handle. The switch handle and the lock handle are lined up along the thumb of the hand that wraps around the housing when shaving, and both handles can be easily operated with the thumb. This is what I did.

The present invention will be described in detail below based on the illustrated reciprocating embodiment. This electric shaver is equipped with a reciprocating movable blade 17 and has a thin thickness at the front and rear. It is said to be divided into two parts, the front and the back. A decorative panel 2 is glued to the surface of the front housing 1, and three handles, a circular switch handle 3, an auxiliary switch handle 4, and a lock handle 5, are attached to the surface of the front housing 1 as operation parts. Attached to the front of the housing. A trimmer block 7 is rotatably mounted in a recess on the back surface of the rear housing 6 located on the rear side, and a trimmer handle 8 for rotating the trimmer block 7 is provided on the side surface. It is arranged to be able to slide up and down. The outer cutter frame 19 is attached to the upper end of the housing by engagement with an attachment/detachment button 21 biased by a lock spring 22. Outer blade 1
The movable blade 17 that comes into sliding contact with the inner surface of the outer blade frame 1
9, and is connected to a drive element 16 whose upper end protrudes above the upper surface of the housing. This drive element 16 converts the rotation of the motor 9 into reciprocating motion, and engages with an eccentric shaft 14 attached to the output shaft of the motor 9 together with an eccentric balancer 15, and also engages with the trimmer block 7. It has a department. 20 is a dustproof plate that prevents beard shavings from entering the inside of the housing;
23 is a screw for connecting the front and rear housings 1 and 6, 25
is a cushion for vibration and noise prevention.

Inside the housing, in addition to the motor 9, there are a main battery 10, an auxiliary battery 11, a chassis 12, and a plug 1.
3. Parts such as a charging module 36 for both batteries 10 and 11 are housed. The chassis 12 is arranged along the inner surface of the front housing 1, the motor 9 is located in the center of the housing, and the main battery 10 is connected to the motor 9.
On one side of the motor 9, the auxiliary battery 11 is arranged side by side on the other side of the motor 9. A charging module 36 equipped with a step-down and rectifying element and a light-emitting element 24 for displaying charging that faces the surface of the front housing 1 is connected to the motor 9 and both batteries 10 and 11.
The plug 13 is housed in the bottom of the housing so as to be slidable laterally. When charging the main battery 10 and the auxiliary battery 11, this plug 13 is made to protrude from the side and connected to a commercial power source.

Now, the main battery 10 and the auxiliary battery 11 are lined up on both sides of the motor 9.
On the other hand, the auxiliary battery 11 is shorter than the motor 9 and has a small battery capacity that can be used several times. A space is created between the upper end and the driver element 16 by arranging the drive element 16 so as to be positioned in the same position. In this space, the switch handle 3 and a pair of contact springs 32, 3 are placed.
3 and a click member that provides a click feeling when _{the switch S 1 is} operated. The above pair of contact springs 32, 33
is the sixth point from the end surface of the chassis 12, which is made of a metal conductive part forming a circuit and an insulating synthetic resin.
As shown in the figure, both contact springs 3 are pressed by the driving rib 30 protruding from the rear end of the switch handle 3.
2 and 33 come into contact to close the circuit to the motor 9. Further, a click rib 29 is protruded from the back side of the switch handle 3 adjacent to the drive rib 30, and the switch handle can be freely moved as a seesaw by engaging a shaft 27 with a bearing 28 on the inner surface of the front housing 1. When one side of the surface of the switch handle 3 is pressed, the projection rib 31 protruding from the inner surface of the front housing 1 engages with the click rib 29, so that a click feeling is generated when the switch handle 3 is operated. FIG. 7 shows a state in which the switch S ₁ is in the off position and the tip of the lock handle 5 is located between the chassis 12 and the protrusion 34 on the back of the switch handle 3, preventing the switch handle 3 from being turned on. When the switch handle 3 is operated by pulling the lock handle 5, the driving rib 30 at the end of the switch handle 3, which swings as shown in FIG. It is brought into contact with the spring 33. At this time, the click rib 29 rides on the protrusion at the tip of the protrusion rib 31, causing a click sensation when the switch handle 3 is operated. When the opposite side of the switch handle 3 is pushed, these are restored and turned off. Further, this off operation can be performed by moving the lock handle 5 instead of operating the switch handle 3. In other words, when the lock handle 5 is moved, the tip of the lock handle 5 presses the inclined surface of the protrusion 34 on the back of the switch handle 3, causing the switch handle 3 to rotate. This eliminates the need for the double effort of moving the lock handle 5 and locking the switch handle 3.

The auxiliary switch handle 4 has a movable contact piece 24 attached to its back surface that contacts a contact spring 42 provided on the chassis 12, and drives a changeover switch _S2 having two interlocking contact parts as shown in FIG. The battery connected to the motor 9 is switched from the main battery 10 to the auxiliary battery 11.
The auxiliary switch handle 4 has a stepped portion 41 that comes into contact with the switch handle 3 in the OFF position, as shown in FIG. Switching to the auxiliary battery is not possible unless it is in the on position. The switch _S3 shown in FIG. 2 is opened and closed in conjunction with the sliding of the plug 13, and is turned off when the plug 13 is protruded to prevent the motor 9 from being driven during charging. It is something that

As described above, this electric shaver has a wave-type switch handle 3 with a circular surface shape on the front surface of the housing, and two slide-type operating members, an auxiliary switch handle 4 and a lock handle 5. However, the lock handle 5 and the auxiliary switch handle 4 are located diagonally to the lower right of the switch handle 3 when viewed from the front, and are located on the right side edge of the housing, and the operation of these operating members is The direction is inclined from the lower right to the upper left when viewed from the front with respect to the vertical longitudinal direction of the housing in which the blade portion is disposed at the upper end. In other words, the direction of the axis 27 of the switch handle 3 is the direction that connects the upper right and lower left of the front of the housing, so that the operation direction is as described above, and the auxiliary switch handle 4 and the lock handle 5 located diagonally below the right of the switch handle 3 are operated in the above operation direction. In each case, by operating the switch handle 3, switching to and locking the auxiliary battery 11 is performed. In addition, the design of the front surface of the housing is such that in order to emphasize the operating directions of these operating members, a diagonally cut out portion is provided in the decorative panel 2, and each operating portion is located within this cutout.

Therefore, when holding the rectangular housing when shaving, the thumb placed on the front of the housing is aligned with the cutout of the decorative panel 2 and in the same direction as the operating direction of each operating member, as shown in Figure 10. Therefore, any operating member can be easily operated with the thumb. In particular, the switch handle 3, which is operated most frequently, is located where the tip of the thumb placed on the housing is located, and the switch handle 3 is wave-shaped, making it extremely easy to operate.

[Effects of the Invention] As described above, in the present invention, the lock handle and the switch handle are lined up along the thumb of the hand holding the housing, and the switch handle, which is frequently operated, is located at the tip of the thumb. hand,
In addition to the fact that both are located in easy-to-operate positions, the switch handle is of a wave type with its swing axis tilted relative to the vertical direction of the housing, and the lock handle is operated in the direction along the thumb. The operation of each operating member itself is easy to perform, and exhibits extremely excellent operability.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a circuit diagram of the same, Fig. 3 is a longitudinal cross-sectional view of the same, Fig. 4 is a cross-sectional view of the same, and Fig. 5 is an exploded perspective view of the same. Figure 6 is an exploded perspective view of the same switch section as above, Figure 7,
FIG. 8 and FIG. 9 are cross-sectional views of the switch part of the same as above;
Fig. 10 is a front view showing the above in use, where 1 is the front housing, 3 is the switch handle,
4 is an auxiliary switch handle, 5 is a lock handle, and 6 is a rear housing.

Claims (1)

[Claims] 1. A switch handle for a power switch and a lock handle for locking this switch handle are installed as operating members on the front surface of a rectangular housing in which a blade section consisting of an outer blade and a movable blade is arranged at the upper end. The switch handle and the lock handle are arranged in an inclined direction with respect to the vertical direction of the housing, and the lock handle is arranged on one side edge of the housing so that its operation direction is arranged in the above-mentioned inclined direction. An electric shaver characterized in that a wave-type switch handle in which the swing axis is inclined with respect to the vertical direction is provided closer to the blade than the lock handle.