JP2516536Y2 - Electric razor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an electric shaver having a mechanism for restricting the operation of a switch.

[Prior Art] Conventionally, a switch structure of this type is composed of a spring portion extending from an end portion of each shutter switch and a convex / concave portion provided in a case or the like so as to position the end portion of the spring portion. It was generally known to be a working structure.

[Problems to be Solved by the Invention] In the above-mentioned conventional technology, the switch can be turned on in both directions regardless of whether the discharge port is opened or closed, and thus there is a problem that whiskers are discharged outside the body even during shaving. . In order to solve such a problem, the present invention provides a switch mechanism that restricts the ON direction of the switch according to the position of the shutter.

[Means for Solving the Problems] The switch structure of the electric razor of the present invention is a switch.
By engaging a cam portion provided on each shutter, one direction of the switch operation is locked and the remaining one direction is unlocked according to the shutter position.

[Operation] According to the above configuration of the present invention, when the shutter that opens and closes the discharge port opens the discharge port, the shutter and the cam portion of the switch collide with each other so that shaving cannot be easily shaved. Lock to disable shaving,
The remaining one direction is unlocked because the operation range of the shutter and the cam part of the switch is open, and it is possible to discharge the shavings. On the contrary, when the shutter closes the discharge port, the shutter and the cam portion of the switch enable shaving and disable discharge of shavings.

[Embodiment] An embodiment of the present invention will be described below. FIG. 1 is a sectional view, FIG. 2 is an operation diagram of switches and shutters, FIG. 3 is an enlarged view of the vicinity of a joint, and FIG. 4 is a circuit diagram. In FIG. 1, the outer blade 7 holding the mesh blade at the upper end is screwed to the body 4 having the discharge port 13, and the inner blade 9 which is locked to the inner blade support 8 is provided on the inner surface of the outer blade 7. It is pressed and is rotatably arranged by a motor 11 via a joint 12. A whiskers discharge fan 10 is rotatably held in the hair collection chamber 14 of the body 4. Reference numeral 1 denotes a shutter, in which a concave portion formed on the body 4 and the front case 5 is engaged with a convex portion of the shutter 1 and is rotatably sandwiched. A switch 2 is fitted to the switch plate 3 with the front case 5 sandwiched therebetween.

As shown in FIG. 4, the switch 2 is wired so that the polarity of the motor is switched so that one ON is the forward / reverse of the motor and the other ON is the reverse of the motor with the stop (OFF) position as the center. .

In FIG. 3, (a) shows the motor 11 during normal rotation, and (b) shows the motor 11 during reverse rotation. At the time of normal rotation, the drive pin 15 protruding from the motor joint 12 engages with the vertical wall 17 of the slide groove 16 provided in the inner blade support 8, and the inner blade support 8 is lifted and rotated in the direction of the outer blade 7. Therefore, the outer blade 7 and the inner blade 9 are pressed against each other to enable shaving. When the motor 11 is rotated in the reverse direction, the drive pin 15 moves in the slide groove 16 and engages with the rounded wall 18, so that the inner blade support 8 moves toward the whiskers discharge fan and the inner blade support 8 The bevel discharging fan is rotated by engaging the clutch claw A19 provided at and the clutch claw B20 provided at the beard discharging fan. Therefore, when the motor reverses, it is possible to discharge the beard scraps.

In FIG. 2, the discharge port 13 is the shutter 1 in FIG.
Shows when is closed. The solid line of switch plate 3 is OFF
Shows the (stopped) state, the one-dot chain line is ON (forward rotation and shave)
It shows the state. When the switch 2 is rotated in the normal direction, the switch plate 3 is in the position shown by the alternate long and short dash line because it is integral with the switch 2. The shutter 1 is a member that extends from the shutter 1 into the front case 5 and a cam A24 that is a protrusion provided at the tip of the member.
Consists of On the shutter side of the switch 3, a cam B21 that extends from the switch plate 3 and has a bent protrusion at its tip
And the escape part 22 and the escape part 2 that escaped the space of the cam A24.
It is composed of a cam C projecting to the opposite side from the cam B21 centering on the center 2. When the switch 2 is rotating normally, the cam A24 is wrapped in the escape portion 22. Therefore, even if the shutter 1 is rotated to open the discharge port B in this state, the cams A24 and C23
Can't rotate due to collision. Therefore, the outlet cannot be opened during shaving, so that the shavings will not spill out of the outlet. Further, when the switch 2 is put in the reverse rotation (whisker discharge), the switch A does not reverse because the cam A24 and the cam B21 are caught. Therefore, it is possible to prevent misuse by discharging the beard scraps when the discharge port is closed.

The diagram (b) shows the state where the shutter 1 opens the discharge port B. In the switch plate 3, the solid line indicates the OFF (stop) state, and the alternate long and short dash line indicates the ON (reverse rotation and whiskers discharge) state. Although the switch 2 can be put in the reverse direction to discharge the shavings, when the switch 2 is put in the normal direction, the cam A24 and the cam C23 provided on the switch plate 3 collide with each other and cannot enter. Therefore, shaving cannot be performed when the outlet B is open.

[Effects of the Invention] As described above, according to the present invention, the switch cannot be rotated normally (shaving) when the discharge port is open, and conversely, when the discharge port is closed, the switch cannot be rotated. Can be prevented from being misused so that it cannot be reversed (shavings discharge).
It is possible to provide the electric shaver of the switch mechanism having the above effects.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is an operation diagram of switches and shutters in FIG. 1, and FIG. 3 is an enlarged partial sectional view of a joint shown in FIG. FIG. 4 is a circuit diagram showing the operation. 1 ... Shutter 2 ... Switch 3 ... Switch plate 4 ... Body 7 ... Outer blade 8 ... Inner blade support 9 ... Inner blade 10 ... Whiskers discharge fan 11 ... Motor 13 ... Discharge Exit 21 …… Cam B 23 …… Cam C 24 …… Cam A

Claims (1)

(57) [Scope of utility model registration request] 1. An electric shaver having an outlet formed in a peripheral wall portion of a hair collection chamber for accommodating an inner blade, and a shutter that rotates to open and close the outlet and an ON position in both left and right directions around an OFF position. By the cam provided on each switch, the switch cannot be turned on to one side when the shutter is open, and conversely cannot be turned on to the other side when the shutter is closed. A featured electric razor.