JPH0220995Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an electric shaver, and the main body case can be folded low for convenient storage and portability when not in use. This prevents the on/off switch for driving the blade from being turned on by mistake.

In this type of electric shaver, a lid body that covers and protects the blade body when not in use is rotatably connected to a main body case equipped with a blade body consisting of an outer cutter and an inner cutter, and a lid body that covers and protects the blade body when not in use. Japanese Patent Laid-Open No. 56-148377 discloses a configuration in which the lid is opened downward and forms a grip.
There, when the lid is closed to the main body case, the on/off switch for driving the inner blade is automatically turned off, and when the lid is opened to the main body case, the switch is automatically turned on and the inner blade is driven. A driving switch mechanism is disclosed. Furthermore, in other devices, when the lid is opened, the operating knob of the on/off switch is exposed and can be turned on.

However, the lid seen in the conventional example mentioned above is literally a lid member that covers and protects the blade when not in use, and the main body case itself cannot be folded compactly and can be placed stably on a desk in a standing position. However, the lid does not function as well. Although the main case is small, it does not allow it to be folded up or even smaller. The problem is that the lid is just an attached member to the main case, and the number of parts is increased. At the same time, the use of the lid to prevent erroneous operation of the switch when not in use also poses a problem in terms of reducing the number of parts and simplifying the structure.

Therefore, the purpose of this invention is that the main body case can be folded compactly when not in use, making it convenient for storage, carrying, and stable placement on a desk while standing, while at the same time, when in use, the main case can be switched to an expanded state that is easy to grip. Get a good electric razor.

Another object of the present invention is to provide an electric shaver equipped with a switch mechanism that prevents the on/off switch for driving the inner blade from being accidentally turned on when the body case is folded and not in use.

Still another object of the present invention is to provide an electric shaver in which the above-mentioned switch mechanism is rationally arranged in the main body case with a simplified structure using a minimum number of parts.

In order to achieve the above object, in the present invention, as shown in the figure, a main body case C includes an upper case 1 having an outer cutter 3 and an inner cutter 4 that slides thereon, and a lower case C rotatably connected to the lower part of the upper case 1. The lower case 2 is switchable between an upright position in which the lower case 2 is at least substantially in a straight line with respect to the upper case 1 and a recumbent position in which the lower case 2 is folded forward and approximately perpendicular to the upper case 1; , the operating knob 17 of the on-off switch for driving the inner blade is located on the upper front surface 2a of the lower case 2 or the lower front surface of the upper case 1, where the upper and lower cases 1 and 2 face each other in a superimposed manner. It is required that the lower case 2 be placed so as to be exposed to the outside at times, but hidden when the lower case 2 is in a recumbent position.

Hereinafter, the details will be explained based on the drawings. FIGS. 1 to 5 illustrate an electric shaver according to the present invention, in which the main case C is an upper case 1.
and lower case 2.

The upper case 1 has an outer cutter 3 and an inner cutter 4 that slides on the outer cutter 3 on its front surface, and has a built-in motor 5 that drives the inner cutter 4. The lower case 2 houses a storage battery 6, a transformer 8, etc., and is separately provided with a removable charging plug blade 9.

A lower case 2 is rotatably connected to the lower end of the upper case 1. Specifically, a pair of left and right joints 12, 12 are provided on the lower surface of the upper case 1 to protrude downward, and approximately the upper half of the lower case 2 is fitted between the two joints 12, 12. Pivot shafts 13, 13 protruding from the left and right end surfaces of the lower case 2 are rotatably connected to bearings 14, 14 recessed in the inner surfaces of the joints 12, 12. In such a case, the lower case 2 can be placed in an upright position (FIG. 2) in which it extends along the downward extension of the upper case 1 with the pivot shaft 13 as the pivot point O, and in a forward-facing position below the upper case 1 that is substantially orthogonal to the upper case 1. It is possible to switch between the folded position (Fig. 3) and the lying position (Fig. 3). This pivot point O is set at a position offset downward by δ from the center line S of the outer cutter 3 of the upper case 1. Note that the joints 12, 12 are formed on the upper part of the lower case 2, and the joints 12, 12 are
The lower part of the lower case 1 may be fitted and pivotally supported between them.

On the pivot portions of the upper and lower cases 1 and 2, a projection 15 for adjusting rotation selectively engages with one of the recesses 16 and 16 provided at two positions, so that the lower case 2 can be placed in the above-mentioned upright posture and lying posture. Each is retained.

Thus, when the lower case 2 is in the lying position, it faces the concave lower surface 1a of the upper case 1, but when the lower case 2 is in the upright position, it is directly below the outer cutter 3 of the upper case 1 and projects forward. On the curved upper front surface 2a of the lower case 2, there is an operation knob 17 for a changeover switch that turns on and off the drive of the motor 5.
It is arranged as follows. Although the switch operation knob 17 in the illustrated example is of a sliding type, it may also be of a push type.

In such a case, as shown in Figs. 3 and 5, move the lower case 2 roughly forward about the rotational fulcrum O.
When turned 90 degrees and placed in a lying position, the entire vertical height of the main body case C, which is the combination of the upper case 1 and the lower case 2, falls within the range of the height dimension including the joint 12 of the upper case 1, and the entire razor can be folded compactly. In this folded state, lower case 2
serves as a pedestal for the upper case 1, allowing it to be placed stably.

The switch operation knob 17 is covered and hidden by the lower surface 1a of the upper case 1. Therefore, when carrying or storing the device in the folded state, the operating knob 17 will not be accidentally operated and turned on.

When in use, when the lower case 2 is rotated from the folded state to the standing position shown in FIGS. Outer blade 3 of upper case 1
The distance between the center line S and the rotation fulcrum O, and the rotation fulcrum O
and the distance between the lower end surface 2b of the lower case 2. This is larger than the case where the rotation support point O is set on the center line S of the outer cutter 3 by the amount of eccentricity δ of the rotation support point O from the outer cutter center line S.

In this state, as the lower case 2 is rotated upright, the switch operation knob 17 is exposed in front of the upper case 1 at a position directly below the outer blade 3, and the operation knob 17 can be switched and operated.

The plug blade 9 for charging is built into one of the left and right side walls of the lower case 2, which is the left side wall 2c in the figure, and extends from and leaves the upper surface of the lower case 2. A vertical guide groove 18 is provided on the outer surface of the case side wall 2c.
An operation button 19 is recessed and connected to the plug blade 9.
faces the outside and slides through the guide groove 18, and presses the operation button 1.
9 is at the lower end of the guide groove 18, the plug blade 9 is retracted into the lower case 2, and when the operation button 19 is slid to the upper end of the guide groove 18, the plug blade 9 protrudes from the lower case 2. do. However, in the illustrated example, the left side joint 12 of the upper case 1 has a forward facing notch groove 2.
0 and when the lower case 2 is in the upright position as shown in FIG.
As shown in the figure, when the lower case 2 is in the lying position, the notch groove 20 matches the guide groove 20, and the operation button 1
9 is inserted into the notch groove 20, and the plug blade 9 can be projected and charged as shown in FIG. Of course, the plug blade 9 may be made to protrude from the lower end surface 2b of the lower case 2, and in that case, the operation button 19 is at the upper end of the guide groove 18 and engaged with the notch groove 20 in the state shown in FIG. This means that it has entered.

FIG. 7 shows another embodiment of the present invention, in which a switch operation protrusion 21 is provided on the lower surface 1a of the upper case 1, and a guide groove 22 is provided on the upper front surface 2a of the lower case 2, which has a switch operation knob 17. is provided, and when the lower case 2 is rotated to the lying position, the protrusion 2
1 moves in the guide groove 22 and pushes the operating knob 17 in the OFF direction so that the switch is automatically turned OFF. Therefore, according to this, the switch is automatically turned off in conjunction with the folding operation, which is convenient. Furthermore, since the switch is definitely turned off when charging with the plug blade 9 protruding, there is no mistake in charging with the switch on.

FIG. 8 shows a further different embodiment of the present invention, in which the lower part of the upper case 1 is internally supported between the joints 12, 12 as described above, which are set upright from the lower case 2, and then the lower part of the upper case 1 is A switch operation knob 17 is attached to the lower front surface of the case 1, and the knob 17 is exposed when the lower case 2 is rotated upright, and when the lower case 2 is folded to a lying position, the upper front surface 2a of the lower case 2 is turned upward. The knob 17 is covered. In addition, it is desirable for the operation knob 17, including these examples, to be completely hidden when the lower case 2 is in the lying position, but this may vary depending on the overall size of the electric shaver and the shape of the pivot. The present invention also anticipates cases where only a portion of the operating knob 17 is hidden and becomes unoperable, or where the operating knob 17 becomes difficult to operate even if it is not completely hidden in appearance.

In addition, in the electric shaver of the present invention, the inner cutter 4 is not limited to a rotary type, but may be a vibrating type, and the outer cutter 3 and the inner cutter 4 may be provided in the upper case 1 facing upward. The motor 5 may be driven not only by the battery 6 but also by a commercial power supply. In that case, the electrical cord will be stored in the lower case 2.

As explained above, according to the electric shaver of this invention, the lower case 2 is rotatably connected to the upper case 1 provided with the inner and outer cutters 3 and 4, and when in use, the lower case 2 is connected to the upper case 1. Since the grip is in an upright position almost in line with the upper case 1 and the length of the grip can be increased, it is easy to grip and convenient to use. When not in use, the lower case 2 can be compactly folded into a forward lying position that is substantially perpendicular to the upper case 1, making it convenient to carry when traveling or the like.

In addition, in this folded state when not in use, the lower case 2 also serves as a pedestal for the upper case 1, allowing the upper case 1 to be placed stably in a standing position on a desk or the like via the lower case 2. Become.

Moreover, the operation knob 17 of the on/off switch for driving the inner blade is provided on the upper front surface 2a of the lower case 2 or the lower front surface of the upper case 1, and when the lower case 2 is extended below the upper case 1, the operation knob 17 faces forward. However, when the lower case 2 is folded forward with respect to the upper case 1 and is not in use, the operation knob 17 is hidden and becomes impossible or difficult to operate. Therefore, it is possible to reliably prevent the switch from being erroneously turned on when not in use. Further, since no special locking means or lid member to be opened and closed is required to prevent erroneous operation of the operation knob 17, the structure can be simplified in this respect, and the switch can be easily operated.

[Brief explanation of the drawing]

Figures 1 to 6 show an embodiment of the electric shaver according to the present invention, with Figure 1 being a front view in use, Figure 2 being a side view, and Figure 3 being in a folded state. 4 is a perspective view in a used state, FIG. 5 is a perspective view in a folded state, and FIG. 6 is a side view in a charged state. FIG. 7 is a perspective view of another embodiment of the electric shaver according to the present invention in use. FIG. 8 is a side view showing still another embodiment of the electric shaver according to the present invention in a state of use. 1... Upper case, 1a... Lower surface of upper case, 2
...Lower case, 2a... Upper front of lower case, 2
b... Lower end surface of lower case, 3... Outer blade, 4... Inner blade, 5... Motor, 6, 7... Rechargeable battery, 17...
Switch operation knob, O...Rotation fulcrum, S...Center line of outer blade.

Claims (1)

[Scope of Claim for Utility Model Registration] The main case C consists of an upper case 1 having an outer cutter 3 and an inner cutter 4 that slides thereon, and a lower case 2 rotatably connected to the lower part of the upper case 1. The lower case 2 can be switched between an upright position in which the lower case 2 is at least substantially in a straight line with the upper case 1 and a lying position in which the lower case 2 is folded forward and substantially perpendicular to the upper case 1. In the lying position, the upper and lower cases 1 and 2 are On the upper front surface 2a of the lower case 2 or the lower front surface of the upper case 1, which are facing each other in an overlapping manner, an operating knob 17 of an on/off switch for driving the inner blade is located outside when the lower case 2 is in the upright position. However, the electric shaver is characterized in that the lower case 2 is arranged so as to be hidden when the lower case 2 is in a lying position.