JPS622550B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention comprises a cutter head which is crimped to a thin plate-shaped net blade by means of a pressure spring, said pressure spring being connected on the one hand to a component connected to the cutter head, and On the other hand, it relates to an electric dry shaver of the type which is supported on a spring holder, which spring holder is arranged in a driver for driving a cutter head.

PRIOR ART Electric dry sheavers of this type are commonly used and known (German patent no.
1110045 specification).

In order to be able to shave hair, the cutter head of the electric dry shaver must be in sufficient contact with the thin plate-like net blade at all times. For this purpose, a pressure spring supported by a spring receiver of the drive element presses the cutter head against the upper thin plate-shaped mesh blade. but,
This pressing force required to effect shaving inevitably creates friction between the thin plate-like mesh blade and the cutter head. This phenomenon is itself a disadvantage. This is because this friction causes friction between the cutter head and the thin plate-shaped net blade, and this friction increases the amount of energy consumed to drive the electric dry shaver. This is a drawback, especially in battery-operated dry shavers.

What has become clear from experience is that the pressing force of the stub head against the thin plate-like net blade must be of various strengths depending on the hardness and thickness of the hair to be shaved. This has not been taken into account in conventional electric dry shavers; rather, the compression spring is capable of effectively shaving the hair that comes in through the holes in the thin plate mesh blade even under unfavorable conditions. It was always designed to be possible.

Problems to be Solved by the Invention The object of the present invention is to utilize an electric dry shaver of the type mentioned at the beginning as a prior art, and to provide an electric dry shaver capable of adjusting the pressing force of the cutter head against the thin plate-like mesh blade in accordance with various shaving conditions. Our goal is to provide a dry shaver.

Means for Solving the Problem The object of the present invention is to provide an electric dry shifter of the type mentioned at the outset, in which the spring receiver has an outer edge portion with a knurl or operating portion for adjusting the height of the spring receiver. The drive element has a locking cam having a plurality of locking portions, and the wedge portions are attached to the locking portions at different height positions. The problem is solved by being engagably supported.

Embodiments According to one embodiment of the invention, it is advantageous, in accordance with claim 2, if mutually opposed wedges are provided in the tapered bore of the spring cup.

According to claim 3, it is further provided that the upper end of the driver is provided with a collar and a conical part with an upper region configured as a locking cam, so that the pressure spring can be The spring tray supporting the can be easily centered by the driver.

It is also provided in accordance with claim 4 that the locking cam consists of two identical sections extending over 180°, the sections each having three locking sections of different heights. The spring catcher can be adjusted in stages by having the section. With this construction, each locking part of the spring catcher can be reproduced at any time. For example, if three locking parts are provided, the first position may be for example for dry shaver operation with long hair clippers.
A second position may be provided for shaving beards and a third position for shaving other body hair.

Numerous possible embodiments of the invention are possible. One of them is shown in the drawing.

Embodiments Next, embodiments of the present invention will be described in detail with reference to the drawings.

A cutter head frame 2 is mounted on the upper part of a casing 1 of an electric dry shaver, which is partially shown in FIG. Inside this cutter head frame 2, a thin plate-shaped net blade 3 is stretched in a curved manner. A driver 4 protrudes from the casing 1 and is reciprocated by a motor (not shown), and this driver 4 drives a cutter head 5. The cutter head 5 is crimped onto the thin plate-like mesh blade 3 by a crimping spring 6. As shown in FIGS. 2 and 3, a connecting member 7 is fitted over the drive element 4, and the cutter head 5 is fixed to this connecting member 7 in a well-known manner. The connecting member 7 can be moved downwards in the drawing against the force of the compression spring 6. The compression spring 6 is supported on the one hand by a connecting member 7 and on the other hand by a spring receiver 8 provided on the drive element 4 .

The spring catch 8 essentially consists of a spring catch 9. This spring receiver 9 is mounted on the collar 10 of the driver 4 in the position shown. Since the spring catch plate 9 has a knurling hole 11 on its outer periphery, the spring catch plate 9 can be removed without using any tools.
It is possible to rotate. Instead of the roller 11, a radially arranged operating section may be provided on the outer periphery of the spring receiver 9. By rotating the spring receiver 9, the spring receiver 9 is
It moves upwards on the drive element 4 as seen in FIGS. 2 and 3. This is important to the invention and will be discussed in more detail below. When the spring catcher 9 moves upward, the pressing force of the pressing spring 6 against the connecting member 7 is increased, so that the cutter head 5 is pressed more or less strongly against the thin plate-like mesh blade 3 of the electric dry shaver. Spring catcher 9
It is clear from the other drawings how the drive element 4 and the spring receiver 9 are constructed in order to convert the rotation of the spring into an axial movement.

4, 5, and 6 show the upper end of the driver 4. FIG. The driver 4 has a conical section 12 on the upper side of the collar 10 , the upper region of which is designed as a locking cam 13 . The exact shape of the locking cam 13 can be most easily seen in FIG. FIG. 7 shows the locking cam 13 developed parallel to the central axis of the driver 4. As shown in FIG. The locking cam 13 extends over 180° 2
It consists of two identical divisions. Each section has a total of three latches 1 formed in a V-shape at various heights.
4, 15, 16, or 14', 15', 16'
have. As shown in FIGS. 8, 9, and 10, the spring receiver 9 has two opposing wedge portions 18 and 19 within the tapered hole 17. As shown in FIGS. The spring receiving plate 9 is connected to the locking parts 14, 15,
16, 14', 15', 16'. In the basic position, the spring catcher 9 is located with the wedge portions 18, 19 in the locking portions 14, 14'. When the spring receiver 9 is rotated, the spring receiver 9 is lifted according to the inclination of the locking cam 13, and the wedge portions 18, 19 are moved to the first locking portions 15, 15'.
be locked in.

By further rotating the spring receiver 9, the wedge parts 18, 19 reach the locking parts 16, 16' provided at a higher place than the above-mentioned locking parts. First locking part 14, 14'
Return to Individual locking parts 14, 15, 16 and 1
4', 15', and 16' are deeply structured, so
As long as the spring catcher 9 is not rotated further by hand, it remains in these locking parts 14, 15, 16 and 14', 15', 16'.

Effects of the Invention The effects of the electric dry shaver according to the present invention are as follows. First, the present invention makes it possible to easily adjust the pressing force of the cutter head against the thin plate-like mesh blade. Thereby, the pressing force can be reduced by the individual user so that the user can shave smoothly and the pressing force between the cutter head and the thin plate-shaped net blade is as small as possible. By reducing the friction in the areas absolutely necessary for shaving, the wear of the laminar blades and cutter heads is much lower than in known electric dry shavers. Furthermore, this also reduces the noise and tendency of the electric dry shear to vibrate. In addition, the energy consumption of the electric dry shaver is reduced. This is of particular importance for battery operated dry shavers.

Furthermore, since the spring catcher has an outer edge with a knurled or operating portion according to the configuration of the present invention, it is now possible to easily adjust the spring catcher without using tools.

[Brief explanation of the drawing]

FIG. 1 is a reduced vertical sectional view of a cutter head of an electric dry shaver according to the present invention, FIG. 2 is a longitudinal sectional view of a range of the cutter head related to the present invention, and FIG. 4 is a side view of the upper part of the driver constructed according to the present invention, and FIG. 5 is a longitudinal sectional view of the driver rotated 90 degrees with respect to FIG. 4. a side view; FIG. 6 is a plan view of the driver shown in FIGS. 4 and 5;
FIG. 7 is a developed view of the locking cam provided in the driver shown in FIGS. 4 to 6, FIG.
FIG. 10 is a plan view of the spring receiver shown in FIGS. 8 and 9, which is a view of the spring receiver shown in FIG. 9 rotated by 90 degrees. DESCRIPTION OF SYMBOLS 1... Casing, 2... Cutter head frame, 3... Thin plate-shaped net blade, 4... Drive element, 5... Cutter head, 6... Pressure spring, 7... Connecting member,
8...Spring receiver, 9...Spring receiver, 10...Brim, 11...Loretsu, 12...Conical base part,
13... Locking cam, 14, 14', 15, 15',
16, 16'...Locking portion, 17...Tapered hole, 1
8,19...Kunebe.

Claims (1)

[Scope of Claims] 1. A cutter head crimped to a thin plate-like mesh blade by a pressure spring, the pressure spring being supported on one side by a component connected to the cutter head and on the other hand by a spring receiver. In an electric dry shaver of the type in which the spring receiver is provided on a driver for driving a cutter head, the spring receiver 8 has an outer edge portion having a lore 11 or an operating portion for adjusting the height of the spring receiver 8. Further, the spring receiving plate 9 has a plurality of wedge parts 18 and 19, and the driver 4 has a plurality of locking parts 14 and 19.
5, 16, 14', 15', 16', and the locking portions 14, 15, 1
6, 14', 15', 16' have the wedge parts 18, 19
An electric dry shaver characterized in that the electric dry shaver is supported so as to be lockable at different height positions. 2. The electric dry shaver according to claim 1, wherein the wedge portions 18 and 19 facing each other are provided in the tapered hole 17 of the spring receiving tray 9. 3. The upper end of the driver 4 is provided with a collar 10 and a conical part 12 with an upper region configured as a locking cam 13.
Electric dry shaver as described in section. 4. The locking cam 13 consists of two identical sections extending over 180°, which sections each have three locks 14, 15, 1 of different heights.
6, or 14', 15', and 16'. 5 Locking parts 14, 15, 16, 14', 15', 1
5. The electric dry shaver according to claim 4, wherein 6' is wedge-shaped.