JPH0214761Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a convenient two-blade razor that is easy to assemble and has a strong blade holder.

(Prior Art) Various structures of two-blade convenient razors have been proposed.

Among these, Utility Model Publication No. 52-38396 includes
A razor is disclosed which has a structure in which protrusions are provided on the upper and lower surfaces of the spacer, fitting holes that fit into the protrusions are provided in the upper and lower blade bodies, and the upper and lower blade bodies are fixed to the spacer. However, this product is assembled by sequentially stacking the lower blade body, spacer, upper blade body, and holding plate on the blade holder.The holding plate is provided with a protrusion that penetrates to the back of the blade holder. Requires welding of the tip.

Also, Publication No. 54-2777, Publication No. 30449 of Publication No. 55-30449
No. 55-30450 discloses a razor with a structure in which upper and lower blade bodies and a spacer are inserted into a U-shaped mounting groove, but in both of these, the upper and lower blade bodies are inserted into a U-shaped mounting groove. The mounting groove has a structure in which the spacer and the spacer are removable, and therefore, the opening and the inner depth of the mounting groove are formed to have the same width, or the opening is formed to be large.

The present invention is a razor in which the upper and lower blade bodies and the spacer are attached to a blade receiver provided with a groove, and the assembly is easy. It is an object of the present invention to provide a convenient two-blade razor in which the blade body can be attached to the blade holder at the same time, thereby reducing manufacturing costs and improving manufacturing efficiency.

(Structure of the invention) In other words, the two-blade convenient razor according to the invention has a tapered surface on the upper surface that expands from the rear end toward the center, and the cutting edges of the upper and lower blades are brought into contact with both ends. a spacer integrally formed with a horizontal frame having a contact surface and covering both ends of the upper and lower blade bodies; upper and lower blade bodies disposed on the upper and lower surfaces of the spacer; the spacer and Upper and lower blade bodies arranged on the upper and lower surfaces of the spacer are fitted, openings are arranged on the upper and lower surfaces of the spacer and the spacer, and a mounting groove that is narrower than the thickness of the lower blade body and an upper part of the mounting groove are configured; a blade holder having an elastic restoring force, and a blade holder that fits inside the horizontal frame of the spacer by fitting the spacer and the upper and lower blade bodies into the mounting groove; It is characterized in that the lower blade body and the blade receiver are assembled into one piece.

(Function of the invention) The two-blade convenient razor according to the invention integrates the upper blade body and the lower blade body by inserting them into the pins provided on the upper and lower surfaces of the spacer, respectively, and inserts them into the mounting groove of the blade receiver. It is assembled by fitting it into the

At this time, fitting the integrated upper and lower blade bodies and spacer into the mounting groove is easy because the upper surface of the spacer is a tapered surface that expands from the rear end toward the center.

In addition, when fitting, when passing through the narrow opening of the mounting groove, the upper and lower blade bodies placed on the upper and lower surfaces of the spacer of the mounting groove are pressed from above and below by blade holders with elastic restoring force. It is then placed in the mounting groove and inserted into the mounting groove. Therefore, during fitting, the upper and lower blades try to move on the upper and lower surfaces of the spacer in a direction opposite to the fitting direction, against the fitting. As a result, the upper and lower blade bodies are pushed toward the blade edge side, and the blade edges of the upper and lower blade bodies abut against the reference contact surface of the spacer. As a result, the cutting edges of the upper and lower blade bodies are assembled in a state where they are located on the reference contact surface, that is, the positions of the cutting edges of the upper and lower blade bodies are set.

Furthermore, the horizontal frames integrally formed with the spacer at both ends of the spacer ensure that the positions of both ends of the upper and lower blade bodies and the cutting edge are fixed, and the entire blade holder has a strong structure. Since the edge of the blade of the lower blade body is not exposed, it is possible to provide a convenient two-blade razor that is highly safe.

(Example) Hereinafter, the present invention will be explained according to an example shown in the drawings.

FIG. 1 is an exploded perspective view of an upper blade body 2, a lower blade body 3, and a spacer 1 according to an embodiment of the present invention, and FIG. 2 is a blade receiver 10 formed with a mounting groove 11 in which these are mounted. FIG.

The upper blade body 2 and the lower blade body 3 have blade parts 2a and 3 on one side edge.
a, and four insertion holes 7 and 8 are provided in the center.

The spacer 1 has an insertion hole 7 for the upper blade body 2 on the upper surface.
A pin 4 is provided at a position corresponding to the insertion hole 8 of the lower blade body 3, and a pin (not shown) is similarly provided on the lower surface at a position corresponding to the insertion hole 8 of the lower blade body 3. The pins are formed at the same height as the plate thickness of the upper and lower blade bodies 2 and 3.
Note that the pin 4 is inserted into the insertion holes 7 and 8 in a loosely fitted state. Furthermore, two protrusions 5 are provided on the upper surface of the spacer 1, each having a tapered surface that expands from the rear toward the center. The height of this protrusion 5 is higher than that of the pin 4, and is fixed to the upper and lower surfaces and is formed so as to slightly protrude from the lower blade bodies 2 and 3. Furthermore, horizontal frames 6 are provided on both sides of the spacer 1 to cover both ends of the upper and lower blade bodies 2 and 3, which are fixed to the upper and lower surfaces. By providing this horizontal frame 6 integrally with the spacer 1,
The upper and lower blade bodies 2 and 3 are not only fixed by inserting pins into their insertion holes, but also by the horizontal frame 6. Further, since the horizontal frame 6 is provided with reference contact surfaces 9a and 9b for the upper and lower blade bodies 2 and 3, the position of the blade edge is also fixed. Furthermore, both ends of the blade receiver 10 to which the spacer 1 is attached are reinforced by the horizontal frame 6, thereby making the overall structure of the blade receiver 10 strong. Further, since the edges of the upper and lower blade bodies 2 and 3 are covered by the horizontal frame 6, safety during use can be improved.

The blade receiver 10 has a mounting groove 11 into which the upper and lower blade bodies 2 and 3 and the spacer 1 integrated can be mounted.
It is equipped with As shown in FIG. 4, the mounting groove 11 has a shape that opens laterally and widens toward the back. The opening of the mounting groove 12 is formed a little narrower due to the thickness of the upper and lower blade bodies 2, 3 and the spacer 1 integrated, and the back side is the upper part, although the lower blade body 2, 3 and the spacer 1 are integrated. A gap equal to the thickness is formed. Therefore, the upper and lower blade bodies 2, 3 and the spacer 1 are fitted into the mounting groove 11 without any gaps. The blade holder 12 forming the upper part of the mounting groove 11 has a fitting hole 13 into which the projection 5 of the spacer 1 is fitted, and has an elastic restoring force. Therefore, when the upper and lower blade bodies 2 and 3 and the spacer 1 are installed in the installation groove 11 as shown in FIG.
The spacer 1 does not fall out of the mounting groove 11, and the upper and lower blade bodies 2, 3 and the spacer 1 are pressed from above and below by the elastic restoring force of the blade holder 12 and are firmly fixed.

In addition, when this invention is boiled, the number of pins and protrusions,
The shapes of the horizontal frame and pins are not limited to those in the embodiment. Further, the blade holder may be configured to be integrated with the handle as in the embodiment, or may be constructed separately from the handle and freely replaced.

The two-blade convenient razor configured in this way is
It is assembled by fixing the upper and lower blade bodies to the spacer and sliding them into the mounting groove of the blade receiver from the front opening. At this time, since the projection of the spacer has a tapered surface, it can be easily fitted into the mounting groove. Furthermore, when fitting, the upper and lower blade bodies are pushed toward the cutting edge side, and the cutting edges of the upper and lower blade bodies come into contact with the reference contact surface, so the positions of the cutting edges of the upper and lower blade bodies are set at the same time as fitting. .

This has the following advantages over the production of conventional two-blade lightweight razors.
In other words, the production of conventional two-blade razors is
As shown in Fig. 5, the two upper and lower blade bodies 2 and 3 placed on the blade stand 20 are pushed out from behind towards the blade edge side, and the blade holder is held while setting the position of the blade edges of the upper and lower blade bodies 2 and 3. Alternatively, as shown in FIG.
Either hold the blade while setting the positions of the upper and lower blade bodies 2 and 3, or insert pin insertion holes 7 and 7 into the pins 21 protruding from the blade base 20 as shown in FIG. 8, the upper and lower blade bodies 2 and 3 were inserted and fitted together. In this case, the former requires multiple steps including an extrusion process to set the center position of the upper and lower blade bodies, and the latter requires precision in forming the pin and pin insertion hole, both of which require precision. It was not possible to reduce manufacturing costs.
However, in the case of the handy razor according to the present invention, the upper and lower blade bodies are attached to a spacer having reference contact surfaces of the upper and lower blade bodies at both ends, and the upper and lower blade bodies are attached to the spacer.
By passing between the elastic restoring members that sandwich the lower blade body and spacer, it is possible to set the position of the cutting edge of the upper and lower blade bodies and the blade holder of the upper and lower blade bodies without requiring a precise structure. Since the device is attached to the body at the same time, it has the advantage of reducing manufacturing costs and increasing manufacturing efficiency.

(Effects of the invention) Since the two-blade convenient razor according to the invention has a tapered surface on the spacer, it is easy to fit the spacer and the upper and lower blade bodies into the mounting grooves of the blade holder, making assembly easy. .

The upper and lower blade bodies are pressed from above and below by the mounting groove of the blade receiver with a narrow opening and the elastic restoring force of the blade holder, and the upper and lower blade bodies are pressed from above and below against the reference contact surface at both ends of the spacer.
The cutting edge of the lower blade comes into contact with the blade, and the positioning of the cutting edge of the upper and lower blades and the attachment of the upper and lower blades to the blade receiver are done at the same time, which reduces manufacturing costs and improves manufacturing efficiency. We can provide a convenient single-blade razor.

The horizontal frame integrated into the spacer makes it possible to securely fix the positions of both ends of the upper and lower blade bodies and the cutting edge.Moreover, when the spacer is attached to the blade holder, both ends of the blade holder are reinforced and strong. It is possible to provide a convenient two-blade razor with a structure.

Further, the edges of the upper and lower blade bodies are covered by the horizontal frame, thereby providing a convenient two-blade razor that is highly safe during use.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an upper blade body, a lower blade body, and a spacer according to an embodiment of the present invention, and FIG. Figure 3 is a cross-sectional view of the upper blade body, lower blade body, and spacer installed in the mounting groove, Figure 4 is a cross-sectional view of Figure 3 before installation, and Figures 5 and 6 are two conventional sheets. FIGS. 3A and 3B are cross-sectional views for explaining the manufacturing process of the lightweight razor. FIGS. In the figure, 1 is a spacer, 2 is an upper blade body, 3 is a lower blade body, 4 is a pin, 5 is a protrusion, 6 is a horizontal frame, 7 and 8 are insertion holes, 10 is a blade receiver, 11 is a mounting groove, 12 is a blade holder, and 13 is a fitting hole.

Claims (1)

[Claims for Utility Model Registration] The upper surface has a tapered surface that expands from the rear end toward the center, and has reference contact surfaces at both ends that abut the cutting edges of the upper and lower blade bodies; a spacer integrally formed with a horizontal frame that covers both ends of a lower blade; an upper and lower blade disposed on the upper and lower surfaces of the spacer; and a spacer and an upper disposed on the upper and lower surfaces of the spacer. The lower blade body is fitted into the spacer, and has openings arranged on the spacer and the upper and lower surfaces of the spacer, a mounting groove that is narrower than the thickness of the lower blade body, and a blade holder that constitutes the upper part of the mounting groove and has an elastic restoring force. and a blade holder that fits inside the horizontal frame of the spacer by fitting the spacer and the upper and lower blade bodies into the mounting groove, and the spacer, the upper and lower blade bodies, and the blade holder are integrated. A convenient two-blade razor characterized by being assembled into a razor.