JPS62189086A - Support structure of razor blade - 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] Purpose of the Invention (Field of Industrial Application) This invention relates to a support structure for a razor blade, and the support structure for the blade body relative to the head of the holder in various razor blades including a T-shaped razor is Of course, this also includes a support structure for the blade in the blade assembly separated from the head.

(Prior Art and Problems to be Solved by the Invention) Conventionally, as a support structure for the blade body for the head of the holder of a T-shaped razor, for example, Japanese Utility Model Application Publication No. 55-156666 (hereinafter referred to as Publication A) and There is one described in Japanese Patent Publication No. 55-153072 (hereinafter abbreviated as Publication B).

In the above-mentioned publication A, the blade placed on the blade holder is pressed down from above by a top plate, and the protrusion on the lower surface of the radish is crimped onto the lower surface of the blade holder through the blade and the blade holder. However, if the caulking protrusions become loose, the top plate will not be able to hold them down enough, and there is a risk that the blade may come off during use, resulting in a poor shave.

In the above-mentioned publication B, the blade body placed on the blade stand is caulked by a protrusion on the blade stand, and is further pressed down from above by a top plate fitted to the blade stand. However, if there is any looseness between the blade holder and the top plate, even if the caulking protrusion is not loose, the top plate will not be able to hold it in place enough.
As in the case of Publication A, there was a risk that the cutting edge would swing.

Further, as a support structure for a blade in a blade assembly separated from the head of a T-shaped razor holder, for example, Japanese Patent Laid-Open No. 58
There is one described in Publication No. -195484 (hereinafter abbreviated as Publication C).

In this C publication, a blade body placed on a blade base is caulked by a protrusion on the blade base to form a blade assembly, and this blade assembly is inserted into the head of the holder from the rear side. It's embedded. In this case, the tip of the blade swings during use, so it is held down from above by the top plate. However, since the T-shaped razor is assembled by fitting the blade assembly into the head, the top plate may not be enough to hold it down due to assembly errors, and the blade does not swing during use. It was difficult to do.

Therefore, the first invention relates to various types of razors such as T-shaped razors and blade assemblies separated from their heads, and the second invention provides blade assemblies of various razors within the head of a holder. They are each embodied in a specific T-shaped razor that is inserted from the rear side, and both are intended to prevent the cutting edge from being photographed.

Structure of the Invention (Means for Solving Problems) That is, the first invention, as shown in the drawings of the embodiments described later, has a pair of clamping plates 2 extending facing each other, and both clamping plates The blade bodies 9 and 1o are sandwiched between the blade bodies 9 and 1o, and both the sandwich plate parts 2 are integrally molded with each other by a connecting shaft part 15 passing through a through hole 12.13 formed in the blade bodies 9 and 1o.

Further, as shown in the drawings of the embodiments which will be described later, the second invention has a pair of clamping plates 2 extending from the connecting head 1 to face each other, and a blade 9 is inserted between the clamping plates 2. , 10, and a through hole 12. formed in the blade body 9°10.
The blade assembly A, in which both the clamping plates 2 are integrally molded with each other, is separated from the T-shaped holder B by a connecting shaft 15 that passes through the connecting shaft 13, and the head 21 of the T-shaped holder B has a While forming an open accommodation chamber 22, this head 2
A guard portion 23 is formed on the front edge of the housing chamber 22, and the blade assembly A is inserted into the housing chamber 22 from the rear side opening 22b.F! ! , and the cutting edges 9a and 10a of the blade body 9.10 are exposed from the front opening 22a of the storage chamber 22.

(Function) In both inventions, since the connecting shaft portion 15 is integrally formed between the two clamping plates 2, the gap between the two clamping plates 2 does not widen, and the connecting shaft portions 2 and the connecting The adhesion between the shaft portion 15 and the blade bodies 9, 10 is improved, and the blade body 9
, 10 is eliminated.

(Example) Hereinafter, an example in which the present invention is embodied in a T-shaped razor will be described with reference to the drawings.

The blade assembly A shown in FIGS. 1 to 3 is for a T-type razor, and has a pair of upper and lower clamping plates 2 facing each other and extending forward from a connecting head 1 at the rear edge. The two clamping plate parts 2 have a projecting plate part 3 at the center and left and right projecting plate parts 5 adjacent to each other through notches 4 on both sides of the projecting plate part 3. Further, side wall portions 6 extend forward from both left and right ends of the connecting head 1 with cutouts 7 formed in the left and right projecting plate portions 5. Projected wall portions 8 are formed on the entire upper and lower edges of the connecting head 1 in a step-like manner relative to the upper and lower clamping plate portions 2 and the left and right side wall portions 6.

The upper and lower blade bodies 9 and 10 are fitted between the two clamping plates 2 in a superposed state with each other via a spacer 11, and the cutting edges 9a and 1'Qa of the upper and lower blade bodies 9 and 10 and the front of the spacer 11 The edges protrude further forward than the front edges of both clamping plates 2.

Note that the cutting edge 10a of the lower blade body 1o protrudes further forward than the cutting edge 9a of the upper blade body 9, the front edge of the spacer 11 is slightly recessed than the cutting edge 9a of the upper blade body 9, and both the upper and lower clamping plates 2 are The front edges thereof extend close to the cutting edge 9a of the upper blade body 9 and have the same length.

The upper and lower blade bodies 9, 10 and the spacer 11 have through holes 1 corresponding to the left and right projecting plate parts 5 of the upper and lower clamping plate parts 2, respectively.
2, 13, and 14 are formed, and the upper and lower opposing surface projecting plate portions 5 are integrally molded with a connecting shaft portion 15 passing through the through holes 12, 13, and 14.

Through-holes 16 are formed on both left and right sides of the central protruding plate portion 3 of the upper and lower clamping plate portions 2, so as to match the through-holes 17, 18° 19 formed in the upper and lower blade bodies 9, 10 and the spacer 11. It has become. Further, projections 20 are formed on both left and right sides of the front edge of the upper central projecting plate portion 3.

In addition, the blade assembly A configured in this way is in a state in which the upper and lower blade bodies 9, 10 and the spacer 11 are placed in a cavity in the mold, and the support bin is inserted into the through holes 17, 18, 19. It is integrally molded.

In particular, in the blade mounting body A according to this embodiment, the upper and lower blade bodies 9.10 and the spacer 11 are held between the upper and lower clamping plate parts 2, and the upper and lower clamping plates 2 are connected to the upper and lower blade bodies. 9
．． 10 and the connecting shaft 15 that passes through the through holes 12, 13, 14 of the spacer 11. Therefore, the gap between the two clamping plates 2 does not widen, and the connecting shaft 15 passes through the through holes 12, 13, 14 of the spacer 11. Part 15, blade body 9.10 and spacer 1
The adhesion between 1 and 1 is improved. Therefore, there is no looseness between the upper and lower clamping plates 2 relative to the blade body 9.10 and the spacer 11, and the cutting edges 9a, 1 of the upper and lower blade bodies 9.10 are completely eliminated during use.
0a becomes less pregnant.

The T-shaped razor shown in FIGS. 4 and 5 utilizes the blade mounting body A, and the head 21 of the T-shaped holder B is formed with a storage chamber 22 that is open to both the front and rear sides. A guard portion 23 is formed at the front edge of this head 21. Further, a pair of left and right locking recesses 24 are formed at the upper edge of the front opening 22a of the storage chamber 22.

The blade attachment body A has a rear opening 2 with respect to this accommodation chamber 22.
2b, and when the upper and lower protruding walls 8 of the connecting head 1 of the blade mount A come into contact with the upper and lower edges of the rear opening 22b, the surface protrusion 20 of the blade mount A is accommodated. It is adapted to be engaged with both locking recesses 24 on the upper edge of the front opening 22a of the chamber 22. In this way, the blade attachment body A is securely fitted to the head 21 of the holder B, and the cutting edges 9a and 10a of the upper and lower blade bodies 9 and 10 are exposed from the front opening 22a of the storage chamber 22.

In the case of this T-shaped razor as well, as mentioned above, the upper and lower double-edged blades 9.
The runout of the cutting edges 9a and 10a of No. 10 is reduced.

Another embodiment shown in FIG. 6 is obtained by omitting the side walls 6 in the blade mounting body A of the previous embodiment shown in FIG.

In another embodiment shown in FIG. 7, the blade attachment body A has a single blade.

In another embodiment shown in FIG. 8, the upper and lower blade bodies 9, 10 and the spacer 11 are directly integrally molded onto the head 21 of the holder B, and this head 21 itself becomes the blade attachment body A.

That is, a pair of upper and lower clamping plates 2 are extended forward from the connecting head 1 at the rear edge of the head 21, facing each other, and between the two clamping plates 2, the upper and lower blade bodies 9.10 and The spacer 11 is held between the upper and lower blade bodies 9.10 and the connecting shaft 15 passing through the through holes 12, 13, 14 formed in the spacer 11, and both the holding plates 2 are integrally formed with each other. The guard portion 23 is formed at the front edge of the lower clamping plate portion 2.

In this embodiment as well, the upper and lower double-edged blades 9.
The number of shots of the blade edges 9a and 10a of No. 10 is reduced.

Note that the present invention is applicable to various razors other than the T-type razor.

Effects of the Invention In short, according to the present invention, since the integrally molded structure of the connecting shaft portion 15 is used instead of the caulking protrusion as a connecting means between the two clamping plate portions 2 that sandwich the blade bodies 9 and 10, the blade body 9,
There is no looseness between the clamping plates 2 relative to the clamping plates 10, and the swinging of the cutting edges 9a and 10a of the blade bodies 9 and 10 during use is reduced.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a blade attachment body for a T-shaped razor according to this embodiment, Fig. 2 is a sectional view taken along the line X-X in Fig. 1, and Fig. 2 is a sectional view taken along the line Y-Y in Fig. 1. 4 is an exploded perspective view of a T-type razor using this blade mount, FIG. 5 is an assembled sectional view of this T-type razor, and FIGS. 6 and 7 are blades for the T-type razor. FIG. 8 is a perspective view showing another embodiment of the body attachment body, and FIG. 8 is a sectional view showing another embodiment of the T-shaped razor. Connection head 1, clamping plate 2, projecting wall 8, upper blade 9, lower blade 1゛O1 cutting edges 9a, 10a, spacer 11, through hole 12
．． 13.14, connecting shaft portion 15, protrusion 20, head 21,
Accommodation chamber 22, openings 22a, 22b, guard portion 23, locking recess 24, blade assembly A1 holder B0 Patent applicant: Agent of Kaiin Knife Development Center Co., Ltd.
Person Patent Attorney 1) How to write an amendment to public disclosure procedure> March 4, 1986 1 Akio Kuroda, Commissioner of the Office of the President 1, Indication of the case 1985 Patent Application No. 234984 3, Person making the amendment Relationship with the case : Patent applicant address: 1110 Kotana, Seki City, Gifu Prefecture Name:
Inuinba J Button Co., Ltd. Center (Name) Representative: Saijiro Endo 4, Agent

Claims (1)

[Claims] 1. A pair of clamping plates (2) are extended to face each other,
The blade bodies (9, 10) are held between the two clamping plates (2), and the through holes (1) formed in the blade bodies (9, 10) are
Both clamping plate parts (
A razor blade support structure characterized in that 2) are integrally molded with each other. 2. A pair of clamping plates (2) extend from the connecting head (1) facing each other, and the blade body (9) extends between the clamping plates (2).
, 10) and passes through the through holes (12, 13) formed in the blade body (9, 10).
The blade assembly (A), in which both clamping plate parts (2) are integrally molded, is separated from the T-shaped holder (B), and the head (21) of the T-shaped holder (B) has its A storage chamber (22) opened to both the front and back sides is formed, and a guard portion (23) is formed at the front edge of this head (21), and the blade assembly (A) is inserted into this storage chamber (22). The blades (9, 10) are inserted through the rear opening (22b) and fitted, and the cutting edges (9a, 10a) of the blade bodies (9, 10) are inserted into the front opening (22b) of the storage chamber (22).
A support structure for a razor blade, characterized in that it is exposed from 22a).