JPS607887A - Electric razor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Technical field) The present invention relates to an electric rice cooker.

(Background technology) In electric shavers with floating outer blades, when the outer blades are tilted, so that there is no gap between the outer blades and the inner blades,
The inner blade also tilts to follow the outer blade, but there is a problem that if the inner blade does not immediately follow the movement of the outer blade, the cutting quality deteriorates.

Figure 1 shows a perspective view of a conventional electric shaver. In the figure, 1 is the outer blade, 2 is the inner blade, 3 is the main body, 4 is the mounting screw, and 5 is the head of the rotating shaft of the motor. The fitting is shown.

FIG. 2 shows a sectional view of the head of the electric shaver.

The inner cutter 2 is inserted into an inner cutter guide groove 7 provided in the inner cutter frame 6 and is supported by the inner cutter frame.

Reference numeral 8 indicates a spring for pushing up the inner cutter, reference numeral 9 indicates an outer cutter frame, and reference numeral 10 indicates a float spring for pushing up the outer cutter.

Conventionally, as shown in FIG. 2, when each inner cutter is pushed up independently, the inner cutter 2 and inner cutter guide groove 7 of the inner cutter frame 6 are slid, and A gap is provided between the inner cutter 2 and the inner cutter guide groove 7 so that the inner cutter 2 follows the outer cutter 1 when the outer cutter is floating. When the inner cutter 2 vibrates within the gap with the inner cutter guide groove 7 due to minute irregularities, etc., and when the outer cutter 1 is floated due to these, the inner cutter follows the outer cutter late, causing the gap to close. There was a problem in that the cutting quality deteriorated.

(Object of the Invention) The present invention was proposed in order to improve the above-mentioned drawbacks, and is an electric shaver Ic with floating outer blades, which has good adhesion between the outer blades and the inner blades and has good cutting performance. The purpose is to provide the following.

(Disclosure of the Invention) Figures 31:81 to 7 show an embodiment of the present invention, and the feature of the present invention is that a slit 12 is formed in the main body 11 of the inner cutter 2 approximately in the axial direction of the motor. death.

A return spring 13 is inserted into this slit, and the return spring 13 is used to push the push-up spring 8 toward the inner blade in the direction crossing the push-up blade.
The reason is that it is configured to provide spring force.

However, the base portion 14 of the return spring 1-3 is connected to the inner cutter frame 6. 13a.

Reference numeral 14a indicates a sliding contact portion that contacts the inner surface of the slit of the inner cutter. An intermediate tilting elastic piece 15 of this sliding contact portion is provided to connect both tank contact portions.

Next, the operation of the present invention will be explained.

Fig. 5 shows a state in which the inner cutter is normal relative to the outer cutter, and Fig. 6 shows a state in which the outer cutter is floating when a pressing force P is applied at a biased position to the outer cutter. FIG. 7 shows a diagram in which the outer blade floats due to the application of the pressing force P of the skin at a biased position.

As shown in Fig. 6, when the outer cutter 1 floats unevenly, the inner cutter 2
12 is the sliding contact portion 13a of the inner cutter 7 frame 9
, descends while being guided by the push-up spring 8
It descends from the push-up blades P and I/C in close contact with the outer blade 1. In addition, the return spring 1-3 causes the inner cutter 2 to slide) 12
Since the lateral force P2 acts on the inner cutter 2, there is a force acting on the inner cutter 2 that always tries to return to its normal position in the state shown in the figure, so the float of the outer cutter 1 changes from the state shown in Fig. 6 to the reverse state shown in Fig. 7. However, the inner cutter 2 follows the outer cutter 1 and goes through the normal state shown in FIG. 5 and then reaches the state shown in FIG. 7.

By floating the outer cutter, a lateral force is applied to the slit 12 of the inner cutter by the return spring 13, and the relationship between the pressing force of the inner cutter 2 and the outer cutter 1 changes. Since the push-up spring 8 also bends and the pushing force increases, it is possible to impart elasticity to the elastic piece 15 to the extent that it is not affected by the lateral force caused by the return spring 1-3, so the sharpness is not affected. The inner blade always floats in close contact with the outer blade, resulting in a sharp cut. Furthermore, since the end surface of the inner cutter 2 that contacts the push-up spring 8 is formed in an arc shape centered on the part of the sliding contact portion 14a that is connected to the inner cutter frame, even if the inner cutter 2 is tilted, it will not work as an inner cutter. Since the push-up spring 8 slides smoothly and almost no external force is applied to the push-up spring 8, a regular push-up blade can always be secured.

8 to 11 show another embodiment of the present invention, in which a pair of elastic pieces 18 and 19 are formed inside the slit 12 of the inner cutter 2 as shown in FIG. Two sliding protrusions 16, 17 are arranged within the piece, and the bases of the sliding protrusions are each formed integrally with the inner cutter frame 6 (see FIG. 9). Incidentally, the parts 18 and 19 are integrally formed through the head part.

8 indicates a push-up spring. FIG. 10 shows the normal state. FIG. 11 shows a case where an external force P acts on one side of the outer cutter 1, and the force P2 acts on the elastic piece 19, shifting the inner cutter 2 to the inner edge 111 of the outer cutter 1. It allows you to make contact without any problem. In this structure, since the elastic pieces are paired, the return force of the inner cutter acts on one of the elastic pieces depending on the way it is floated, thereby making the degree of contact between the inner cutter even better.

(Effects of the Invention) Since the present invention is configured as described above, each inner cutter independently rotates and follows the outer cutter, so there is no gap between the inner cutter and the outer cutter, resulting in good cutting performance.

(b) When the outer cutter floats, the inner cutter always has a force to return to its original position, so the inner cutter follows the outer cutter in close contact, so there is no gap.

(/→ The float of the outer blade changes the push-up force distribution to the inner cutter, but the height of the push-up blade and the return spring force can be balanced, resulting in a sharp cut.

It has the following effects.

[Brief explanation of drawings]

Figs. 1 and 2 show a conventional electric shaver, Figs. 3 to 7 show an embodiment of the present invention, Fig. 3 is an enlarged perspective view of the main part, and Fig. 4 is a sectional view. , FIGS. 5 to 7 are explanatory views of the operation, FIGS. 8 to 11 show other embodiments of the present invention, FIG. 8 is an enlarged perspective view of the main parts, FIG. 9 is a sectional view, and FIG. 11 and 11 show operation explanatory diagrams. l...outer blade, 2...inner blade, 3...main body, 4...
Blade mounting screw, 5...Joint, 6...Inner blade frame, 7
... Inner cutter guide sea, 8... Push-up spring, 9... Outer cutter frame, 10... Outer cutter float spring, 11... Inner cutter body, 12... Slit, 13... Return spring, 13
a, 14a...Sliding contact portion, 14...Base, 15.
... Elastic piece, 16... Sliding protrusion, 17... Sliding protrusion, 18.19... Elastic piece Patent applicant Figure 1 Figure 2 Figure 7 Figure 31 Peeling Figure 4 2 26 4 Ri 8 Figure 5 8 Figure 6 and Figure 9

Claims (3)

[Claims] (1) In an electric shaver in which the outer cutter is floated within the outer cutter frame by a spring, the push-up spring that pushes up the inner cutter and the push-up spring that pushes up the inner cutter are inserted into the slit provided in the inner cutter, and the inner cutter is An electric shaver comprising: a return spring that applies a force component that crosses the push-up blade of the push-up spring. (2) The return spring is inserted into a slit formed in the inner blade, and is composed of a sliding contact portion that slides in at least two places with the slit, and an elastic piece that connects all of the sliding contact portions, and The electric shaver according to claim 1, wherein the sliding contact portion on either side is integrated with the inner cutter frame. (3) A pair of elastic pieces are provided in the slit of the inner cutter, and one of the elastic pieces 111j is provided with a pair of sliding contact parts that are integrated with the inner cutter frame. Electric miso according to the section.