JPH0516863Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field and purpose] This invention relates to small electric appliances such as electric hair clippers and electric razors that are equipped with a drive motor and a sliding switch knob that turns it on and off. The switch knob can be temporarily fixed by effectively utilizing the surface and can be easily assembled, and the structure can be simplified by omitting the slide guide member of the switch knob toward the main body case side.

〔Example〕

The details will be explained below based on the drawings.

The drawing shows an electric clipper which is an example of a small electric device according to the present invention, and the main body case 1 of this
has a long box shape that is long in the front and back direction, and there is a fixed blade 2 at the front end.
and a head case 4 equipped with a movable blade 3; position) and upward tilted position (third position).
It is pivotably connected to be relatively rotatable around left and right support shafts 5a and 5b so that it can swing across the imaginary line state in the figure). Left and right support shafts 5a, 5
One of the support shafts 5b is integrally formed on the main body case 1 side, and the other support shaft 5a has a head 30 and elastic legs 31, as shown in FIG. A plate is inserted into the shaft hole 33 on the case 1 side and the shaft hole 34 on the head case 4 side so as to be freely retractable in the axial direction, and is fixed in the inside of the elastic leg part 31 and the inside of the main case 1. A coil spring 36 interposed between the coil spring 35 and the spring 35 constantly urges the coil spring 36 to protrude outward in the axial direction. Thus, this support shaft 5a can be rotated by a predetermined angle by placing a finger on the head 30 and pressing it inward of the main body case 1 against the coil spring 36, thereby moving the head case 4 into the above-mentioned basic position. Switch to and hold the upward tilted position.

In FIGS. 2 and 3, a main body case 1 houses a drive motor 6, a battery 7, etc., which are the power source of the movable blade drive mechanism. The shaft protruding end 6a of the motor 6 is fixed to a motor mounting base 8 in the main body case 1 with screws 9 or the like. Inside the head case 4, a plow comb 10 can be moved in and out from the front end of the head case 4, and on the bottom side of the head case 4, a blade unit 11 having a fixed blade 2 and a movable blade 3 can be attached and removed. Can be assembled individually if possible. Blade unit 1
1, a comb-shaped fixed blade 2 is fixed inside a unit base 12 having a U-shaped cross section so that its cutting edge protrudes forward, and a comb-shaped movable blade 3 is attached to the unit base 11 via a spring shaft 13. The fixed blade 2 is pressed against the upper surface of the fixed blade 2 by an attached spring 14. A vibrator 15 is installed inside the head case 4, and a vibrating lever 16 integrally formed at the front end of the vibrator 15 projects forward to engage and disengage from the passive piece 17 fixed to the upper surface of the movable blade 3. possible to engage. Further, a vertically long concave groove 1 formed on the rear end surface of the vibrator 15
8, an eccentric pin 19 fixed on the shaft of the motor 6;
engage. Therefore, the vibrator 1 is driven by the motor 6.
When the blade 5 is caused to vibrate back and forth in the left and right directions via the eccentric pin 19, the vibrator lever 16 integrated therewith vibrates back and forth in the same direction, causing the movable blade 3 to reciprocate in the left and right direction on the upper surface of the fixed blade 2.

As shown in FIG. 2, the outer surface of the main body case 1 is provided with a sliding switch knob 20 that engages with the switch 37 of the motor 6 inside the main body case 1 to turn the switch 37 on and off. The invention is characterized by the structure of the switch knob 20 and how to assemble it.

In FIGS. 4 and 5, switch knob 2
0 is made of plastic and has a U-shaped cross section, and includes a rectangular knob body 21 and a slide wall piece 2 extending parallel to the same side from the upper and lower ends of the knob body 21.
2 and 23, the knob body 21 has a finger gripping surface 21a on its outer surface, and engages the actuator 37a of the switch 37 on its inner surface. The dimensions are set to be approximately equal to the distance between the flat upper and lower surfaces 6b and 6c.

In such a case, by fitting the slide wall pieces 22 and 23 of the switch knob 20 onto the upper and lower surfaces 6b and 6c of the motor 6 and pinching them elastically, the switch knob 20 will be temporarily positioned with respect to the motor 6 in the vertical and horizontal directions. Not only can the motor 6 be stopped, but it can also be slid stably in the front-rear direction using the upper and lower surfaces 6b and 6c of the motor 6 as guides. Further, at the same time as the motor 6 is attached to the motor mounting base 8, the switch knob 20 allows the knob body 21 to accurately face the position within the opening 24 on the left side surface of the main body case 1, and the finger-resting surface 21a is placed inside the opening 24. It becomes possible to face the outside. When the switch knob 21 is slid back and forth, the actuator 37 of the switch 37 engages with the inner surface of the knob body 21.
a can be slid in the same direction as that,
The motor 6 can be turned on and off. As shown in FIG. 2, the rear end of the lever 10a connected rearward from the plow comb 10 is engaged on the front side of the actuator engaging portion on the inner surface of the knob body 21, so that the switch knob The plow comb 10 can also be moved in and out from the front end of the head case 4 in conjunction with the sliding operation of the head case 4.

The on/off position of the switch knob 20 is indicated on each outer surface of the upper wall 1a and the lower wall 1b of the main body case 1. That is, as shown in FIGS. 2 to 4, transparent viewing windows 25 are provided on the outer surfaces of the upper wall 1a and the lower wall 1b, and the slide wall pieces 22 and 23 above and below the switch knob 20 are set to "off" and "off" respectively.
Character displays such as ``cut'', ``more cut'', and ``less cut'' are written, and these character displays are made to sequentially face the above-mentioned upper and lower viewing windows 25 as the switch knob 20 is slid in stages. At this time, since the sliding wall pieces 22 and 23 having the character display are able to slide stably using the upper and lower surfaces 6b and 6c of the motor 6 as guides, as described above,
Stability of slide display can be achieved.

[Another example]

The entire details of the embodiments shown in FIGS. 1 to 5 are as described above, but the present invention is not limited thereto. For example, as shown in FIG. 6, dotted or linear protrusions 27 are provided on the inner surfaces of the slide wall pieces 22 and 23 of the switch knob 20 to reduce frictional resistance with the outer surface of the drive motor 6 and facilitate sliding operation. It may be possible to do it more smoothly and easily. Further, as shown in FIG. 7, a concave groove 2 is provided on the outer surface of the drive motor 6.
8 in the front-rear direction, and the protrusions 27 provided on the inner surfaces of the slide wall pieces 22 and 23 of the switch knob 20 are slidably fitted into the grooves 28, and the switch knob 20 is moved between the protrusions 27 and the grooves 28. The slide fitting is advantageous in that it is slidably guided in a straight line in the front-rear direction and that the switch knob 20 can be prevented from coming off from the drive motor 6 in the left and right outward directions. Incidentally, when the groove 28 is provided on the outer surface of the drive motor 6, a groove for fixing the magnet of the motor 6 may be used as shown in FIG.

In addition, as shown in FIG.
By forming the engaging piece 29 to extend inwardly and engaging the engaging piece 29 with the side surface of the drive motor 6, a reliable sliding guide action in the front and rear direction of the switch knob 20 and a reduction in the amount of noise from the drive motor 6 can be achieved. It can exhibit the effect of preventing it from coming off in the left and right outward directions.

Furthermore, in the case where the drive motor 6 has a circular cross section as shown in FIG.
If the slide wall pieces 22 and 23 of the switch knob 20 are formed to have an arc-shaped cross section to correspond to the outer surface shape of the motor 6, and then are slidably fitted to the motor 6, the switch knob 20 can also be moved in the front-rear direction. A reliable sliding guide action and an effect of preventing the motor 6 from coming off can be obtained.

[Effect of idea]

As explained above, the small electric device of this invention has the knob body 2 of the sliding switch knob 20.
Slide wall pieces 22 and 23 are formed extending from 1 toward the inside of the main body case 1 and are sandwiched against the outer surface of the drive motor 6. Therefore, when assembling the switch knob 20 and the drive motor 6 to the main body case 1, the switch knob 20 is temporarily attached to the drive motor 6 in advance, and then the switch knob 20 is attached to the main body case 1.
Since it can be assembled into Switch Knob 2
Compared to assembling the motor 0 and the drive motor 6 individually, the number of assembly steps is reduced and the assembly is simple. In addition, by temporarily fixing the switch knob 20 to the outer surface of the drive motor 6 in a pinched state, the switch knob 20 can be prevented from falling off during the subsequent process of assembling other parts after the drive motor 6 is assembled to the main body case 1. There is no such problem, and in this respect as well, it becomes easier to assemble, and the assemblability can be further improved.

Moreover, since the slide wall pieces 22 and 23 are made to be slidable relative to the outer surface of the drive motor 6, the outer surface is used as a slide guide surface of the switch knob 20, so that they can be used as slide guide members of the switch knob 20. There is no need to specially provide or assemble the main body case 1 on the main body case 1 side, and the overall assembly and structure can be simplified accordingly.

[Brief explanation of the drawing]

1 to 5 show an electric hair clipper which is an example of a small electric device according to the present invention.
The figure is an overall external plan view, Fig. 2 is an internal plan view, Fig. 3 is an internal side view, Fig. 4 is an enlarged sectional view taken along the - line in Fig. 1, and Fig. 5 is a perspective view of the switch knob and motor. be. 6 to 10 are front views of essential parts showing different embodiments of the present invention. 1... Main body case, 6... Drive motor, 20...
...Switch knob, 22, 23...Sliding wall piece.

Claims (1)

[Claims for Utility Model Registration] A compact device that has a drive motor 6 assembled inside the main body case 1 and a sliding switch knob 20 that engages with a switch 37 of the drive motor 6 to turn the drive motor 6 on and off. In the electrical device, the switch knob 20 is arranged so as to be slidable along one side of the drive motor 6 within an opening 24 in one side wall of the main body case 1, and has a finger grip surface 21a facing outside of the opening 24. shaped knob body 21
and opposing slide wall pieces 22, 2 formed continuously from the knob body 21 toward the inside of the body case 1.
3, and a sliding wall piece 2 against the outer surface of the drive motor 6.
A small electric device characterized in that 2 and 23 are slidably sandwiched.