JPS6319026Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field This invention is a two-blade safety razor in which the lower blade body and the upper blade body are clamped between the blade base and the top plate via a spacer. This invention relates to an improvement in a beard dandruff removing plate that is interposed so as to be movable in the front-back direction.

Prior Art Conventionally, in this type of two-blade safety razor blade, as shown in Utility Model Application No. 52-22789, the front end surface of the whisker removing part of the whisker removing plate located between the cutting edges of the upper and lower blade bodies is straight. It is shaped like a beard, so that the force is distributed and applied to the entire beard. Therefore, if the beard dregs adhere to the cutting edge and harden over time after use, the resistance that prevents the forward movement of the dwarf removal plate becomes stronger, causing the dregs to harden over the entire straight front end surface mentioned above. A great deal of force is required to push out the beard dregs. In addition, beard dregs sometimes got stuck in the small gap between the beard removal part and the upper and lower cutting edges, making it impossible to completely push out the dregs from between the blade edges. Furthermore, the space between the upper and lower blade tips is necessary for the escape of beard dregs, but if this space is too large, the swing of the blade tip increases during shaving, which affects the quality of the shave.

Purpose The purpose of this invention is to improve the shape of the beard removal part of the beard removal plate to make it easier to remove beard dregs attached to the blade edge, and to prevent the blade tip from wobbling and improve the shaving quality. It is in.

Structure of the Invention In order to achieve this object, the present invention has a plurality of protrusions protruding forward on the whisker removing portion of the whisker removing plate located between the cutting edges of the upper and lower blade bodies.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
As shown in the figure, it consists of a blade base 2, a lower blade body 3, a spacer 4, an upper blade body 5, a top plate 6, and a dregs removing plate 7. The blade body 3, the spacer 4, and the upper blade body 5 are sequentially overlapped, and these are attached to a caulking protrusion 6a protruding from the top plate 6.
It is clamped between the blade stand 2 and the top plate 6 with a . The dandruff removal plate 7 has a frame shape as shown in FIG. 4, and a connecting portion 8a is formed between the front frame portion 11 and the rear frame portion 12, and movement permissible spaces are provided on both left and right sides of the connecting portion 8a. 8 is formed. As shown in FIG. 2, this dwarf removal plate 7 has a pair of left and right spacers 4 loosely fitted in its both movement permissible spaces 8, and as shown in FIG. It is installed so that it can move forward and backward. As shown in FIG. 2, stopper parts 9 and 10 are formed at the four corners of the top plate 6, and both left and right ends 11a and 12a of the front frame part 11 and the rear frame part 12 of the beard dwarf removal plate 7 are formed at the stopper parts 9 and 10, respectively. , 10, the dandruff removal plate 7 is movable between the front and rear stopper portions 9, 10. In addition, a locking hole 14 is formed in a protruding piece 13 that protrudes rearward from the center of the rear frame portion 12 of the beard dwarf removal plate 7, and a locking hole 14 is formed in the protruding piece 13 provided at the center of the rear frame portion 12 of the beard dwarf removal plate 7. Beam-shaped leaf spring part 15
A pressing operation part 16 is provided in the center of the button to protrude rearward.
A locking protrusion 17 protruding from the lower surface of the pressing operation portion 16 is engaged in a locking hole 14 of the dandruff removing plate 7.

A front frame part (beard removal part) 11 of the whisker removal plate 7 is located between the cutting edges 5a and 3a of the upper and lower blade bodies 5 and 3, and the front frame part 11 has a plurality of trapezoidal convex parts 18. A trapezoidal recess 19 is formed between each protrusion 18 and protrudes forward. Due to the uneven parts 19 and 18, the extruded surface 20 of the front edge of the front frame part 11, which serves as a whisker removal part, is shaped into an uneven shape. usually,
The cutting edges 3a and 5a project very slightly forward from the shaving tangent plane P connecting the guard 2a on the front edge of the blade stand 2 and the top of the top plate 6, and the dregs removing plate 7
The protruding dimension L of the protruding portion 18 is set so that the protruding portion 18 of the dandruff removing plate 7 does not protrude forward from the shaving tangent plane P when the shaver is in the retracted position as shown in FIG. As shown in FIG. 5, the front end of the convex portion 18 is in a state slightly retracted backward from the shaving tangent plane P.

Then, press the pressing operation part 16 of the top plate 6 to the leaf spring part 1.
When pushed forward against the bias of 5, the dandruff removal plate 7 moves forward between the upper and lower blade bodies 5 and 3, and the extrusion surface 20 of the dandruff removal plate 7 touches the cutting edge of the upper and lower blade bodies 5 and 3. Push out the beard dregs between 5a and 3a forward. Since this extruded surface 20 has an uneven shape, even if beard dregs adhere to the cutting edges 3a, 5a and harden over time after use, the protrusions 18 will dig into the dregs first. In particular, the protrusion 1
A concentrated load is applied to the beard dregs facing 8, and this concentrated load causes partial cracks in the beard dregs, weakening the resistance of the beard dregs, making it possible to easily remove the beard dregs with a small force. .

In addition, since the cutting edges 5a, 3a of the upper and lower blade bodies 5, 3 are supported by the convex portion 18 of the dregs removing plate 7, the swinging of the cutting edges 5a, 3a is reduced during shaving, resulting in very stable shaving. Improves taste.
In this case, the space between the upper and lower cutting edges 5a, 3a is blocked to some extent by the convex portions 18, but the beard dregs escape into the concave portions 19 between the convex portions 18, so that the shaving quality is not affected at all.

In another embodiment shown in FIG. 6, the connecting portion 8a is removed from the dandruff removal plate 7 of the previous embodiment, and in this case, the spacer 4 is not divided into two parts but is integrated.

In each of the embodiments shown in FIGS. 7 to 10, the uneven shape of the extruded surface 20 of the dandruff removing plate 7 is changed. That is, in the dandruff removing plate 7 shown in FIG.
The extrusion surfaces 20 at the front ends of the parts 9 and 18 are inclined surfaces that protrude forward toward the bottom. In the dandruff removing plate 7 shown in FIG. 8, each uneven portion 19, 18 has a rectangular shape. In the dandruff removing plate 7 shown in FIG. 9, each convex portion 18 has a semicircular shape. In the dandruff removing plate 7 shown in FIG. 10, each uneven portion 19, 18 has a triangular shape.

Effects According to the present invention described in detail above, as mentioned above, the convex portion 18 of the dregs removal plate 7
It also bites into the beard dregs attached to the beard, making it possible to reliably remove the beard dregs.In addition, by supporting the blade edges 3a and 5a with this convex portion 18, the blade edges 3a and 5a can be easily removed during shaving. It is possible to prevent shake and improve the quality of the shave.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing a disposable blade cartridge which is an embodiment of the present invention, Fig. 2 is a perspective view showing the positional relationship of the dandruff removing plate with respect to the top plate and the spacer, and Fig. 3 is an exploded perspective view showing the replaceable blade cartridge. FIG. 4 is a perspective view showing the dandruff removal plate, FIG. 5 is a partial sectional view showing the positional relationship between the upper and lower cutting edges and the concave and convex portions of the dregs removal plate, and FIG. 6 shows the connection part removed. Perspective views showing other examples of the whisker dregs removal plate, FIGS. 7 to 1
FIG. 0 is a partial sectional view or a perspective view showing another example in which the shape of the concave and convex portions of the dandruff removal plate is changed. 1... Spare blade cartridge, 2... Blade stand, 3...
Lower blade body, 3a...Blade tip, 4...Spacer, 5...
Upper blade body, 5a...Blade tip, 6...Top plate, 7...Bear removal plate, 11...Front frame part (beard removal part), 1
8... Convex portion, 19... Concave portion, 20... Extruded surface.

Claims (1)

[Scope of Claim for Utility Model Registration] A lower blade body 3 and an upper blade body 5 are clamped between the blade base 2 and the top plate 6 via a spacer 4, and the upper and lower blade bodies 5, 3
In a two-blade safety shaver in which a dandruff removal plate 7 is movably interposed in the front-rear direction, the dandrage removal part 11 of the dregs removal plate 7 is located between the cutting edges 5a and 3a of the upper and lower blade bodies 5 and 3. A two-blade safety razor with a beard removal plate characterized by having a plurality of convex portions 18 protruding forward.