JP4402086B2 - Comb blade for a firewood and method for manufacturing the same - Google Patents

Description

  The present invention relates to a combing blade for a scissors with a blade attached to the tip of a comb blade element and a method for manufacturing the combing blade for a scissors.

  A comb is used to comb the hair. One of the scissors is a comb blade, and a tip blade is often provided with a concave blade (referred to as a U-shaped or V-shaped blade). Hair is combed by cutting the hair captured by this U-shaped part. In order to process such a blade of a comb blade, an electric discharge machine may be used.

The inventor of the present application has proposed a method for manufacturing a comb blade for a firewood by the following Patent Document 1. In this invention, a V-groove is provided at the tip of the comb blade element by a rotating grindstone, and the bottom of the comb blade is chamfered.
This method is suitable for a method for manufacturing a comb blade for a firewood that performs processing with a rotating grindstone using a numerically controlled processing machine.
The invention described in Patent Document 2 is a firewood rod provided with a U-shaped blade at the tip of the blade edge. This wrinkle reduces cutting resistance by reducing the amount of hair cut at the tip compared to the vicinity of the pivotal portion of the heel, and the operational feeling when cutting the hair near the pivotal portion and the hair at the tip The difference in operational feeling at the time of cutting is made comparable.
The inventions described in Patent Documents 3 and 4 relate to the invention of the present inventors that processes a comb blade using a rotating grindstone. The invention described in Patent Document 3 is provided with a relief slope on the trough side in order to be sandwiched by other than the V groove at the tip of the comb blade and eliminate hair. The invention described in Patent Document 4 enables the tip to be processed into various shapes including the V-groove at the tip of the comb blade.
Japanese Patent Laid-Open No. 11-19342 Japanese Patent Laid-Open No. 11-57240 Japanese Patent Laid-Open No. 2005-65934 JP 2005-87256 A

The method using a rotating grindstone in the processing of a blade of a scissors has a feature that the finish is better than that by electric discharge machining.
When quenching is performed using a rotating grindstone after quenching, and the surface is further finished by waving, the problem remains that the V groove at the tip of the element of the comb blade processed with the rotating grindstone is not so good. ing.
In the barber industry, the amount of hair to be combed is used as a guideline as a cutting rate, but this cutting rate is determined by the shape of the cutting edge of the whisker.

  An object of the present invention is to provide a comb blade for a scissors having a shape in which the cutting rate hardly changes by providing a step at the tip of the element of the comb blade and a method for manufacturing the same.

According to the first aspect of the present invention,
In a comb blade for a firewood that prepares a blank that is the original shape of a comb blade, performs machining on the surface of the blank, cuts out the elements of the comb blade, and automatically processes the tip using a grindstone,
The blade on one side sandwiching the groove for grasping the combed hair formed at the tip of each comb blade element is made thinner than the other.

According to the present invention, there is provided a method for manufacturing a comb blade for a firewood basket according to claim 2,
Prepare a comb blade blank for firewood, finish and arrange the shape of the comb blade by surface processing, quenching, and then removing distortion, using a rotating grindstone,
A method of manufacturing a comb blade for combing, which processes grooves or valleys and forms a concave groove for grasping the combing hair at the tip of each comb blade,
A step of processing with a rotating grindstone is provided so that the thickness of the blade on one side sandwiching the concave groove is thinner than the other.
According to the present invention, there is provided a method for producing a comb blade for a firewood basket according to claim 3.
3. A method for manufacturing a comb blade for a scissors according to claim 2, further comprising a step of finishing a surface including a concave groove at a tip of each of the elements of each comb blade by polishing a cloth.

The comb blade for combing according to the present invention is configured such that the blade on one side sandwiching the groove for grasping the combed hair formed at the tip of each comb blade element is thinner than the other.
Therefore, a thicker (higher) tip of the conventional whisker blade guides the hair, and depending on the cutting direction, guides a large amount of hair into the groove and cuts excessively, resulting in a stable cutting rate. Can solve the problem of not.
Moreover, as described above, the thickness of the blade on one side is made thinner than the other. It becomes easy for the quilt to enter the concave groove, and a good quilt finish is possible. It should be noted that only one side is thinned, and both are not thinned, so the strength of the heel does not drop.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing the shape of the tip of an element of a comb blade for a firewood according to the present invention.
FIG. 2 is a view showing the shape of the tip of the element of the comb blade for a firewood according to the present invention.
2, (A) is a left side view, (B) is a C ₂ -C ₂ cross-sectional view, (C) is a plan view, (D) is a C ₁ -C ₁ cross-sectional view, and (E) is a cross-sectional view. , Right side view, (F) is a front view.
FIG. 3 is a plan view of a whispering blade in which a concave groove is formed at the tip of the element of the combing blade for whispering.
FIG. 4 is a perspective view illustrating an arrangement of a comb blade blank and a rotating grindstone in order to explain the processing of the blade.
FIG. 5 is a view for explaining the positional relationship between the rotating grindstone and the elements of the comb blade in the process of making the thickness of the blade on one side sandwiching the groove for grasping the combed hair formed at the tip of the comb blade smaller than the other. FIG. In the embodiment of the present invention, symbols and coordinates (x, y, z) are used in common in each figure (FIGS. 1 to 5).

  In FIG. 3, the back surface of the comb blade parallel to the xy plane of the rectangular coordinates is defined as a reference surface (a mating surface when other blades are combined). In each figure, y is the direction of the comb blade element, and the x-axis is the direction substantially parallel to the straight line connecting the tip surfaces of the comb blade elements. The line connecting the tip surfaces of the comb blade elements is a large arc and may not necessarily be a straight line, but the direction perpendicular to the comb blade element and close to the arc is the x direction. The z direction is the thickness direction of the comb blade.

The comb blade for a firewood punch according to the present invention prepares a blank as a prototype of a comb blade, performs machining on the surface of the blank, and as shown in FIG. 4, the front and back surfaces of the blade, the tip surface 7 of the blade tip, Machining the inclined surface of the blade surface.
The comb blade element 2 is cut out by moving the relative position of the blank 1 and the grindstone 9 by one pitch in the X direction and in the y direction by numerical control.
The chamfering of the trough or groove of the comb blade is performed by rotating the blank 1 around the y axis and contacting the rotating grindstone as shown in Patent Document 1.

1 and 2 are diagrams showing the shape of the tip of an element of a comb for scissors according to the present invention.
In FIG. 2, (A) is a left side view of the tip of the comb blade element, which stops the shape of the substantially finished blank in the z direction. A left side surface 21 at the front end, a surface 25 at the front end, and a slope 23 at the front end appear. At the tip of the comb blade element, a V-shaped groove 6 (groove surfaces 29, 30) is provided as is often seen in the plan view (C).
The thickness of the blade having the inclined surface 24 sandwiching the concave groove 6 is made thinner than the thickness of the blade having the other inclined surface 23. In each figure, 22 is the right side surface, 26 is the thin tip surface, and 28 is the back surface (matching surface) of the comb blade.

Next, a method for processing a comb blade provided with a comb blade element having the tip shape as described above will be described.
(Blank preparation step)
In the blank preparation step, a blank of a comb blade for a firewood is prepared.
(Blank finishing step)
Finish and arrange the shape of the front, back, tip, and peak of the comb blade by machining the surface. FIG. 4 shows the finished blank 1.
(Blank quenching distortion removal step)
The blank is quenched, and then the distortion is removed.
(Groove or valley processing step)
Grooves or valleys are machined with a rotary grindstone for machining grooves or valleys 3 (see FIG. 3). The grooves or valleys are processed by feeding a grindstone corresponding to the groove width. The cross-sectional shape of the outer peripheral surface (abrasive surface) of the rotating grindstone is a cylindrical surface. In addition, although it carries out sequentially by 1 pitch feed of a comb blade, a different pitch can be set by numerical control feed.

(Chamfer step of groove or valley bottom)
The chamfering of the groove or valley bottom is performed using the same grindstone following the groove or valley machining step. The positional relationship between the blank and the grindstone during this processing is described in detail in the above-mentioned Patent Document 1.
(Drilling step for the tip of the blade element)
The groove processing of the tip of the element of the whispering blade is performed using a rotating grindstone complementary to the cross-sectional shape of the groove. For the processing when the concave groove is a V-groove, a grindstone having a V-shaped tip is used when it is shown cut by a plane including the center of rotation.
(Step of reducing the thickness of the blade on one side across the groove)
The thickness of the blade on one side sandwiching the groove for capturing the hair formed at the tip of each comb blade element is made thinner than the other. A rotating grindstone 9 is used. As the rotating grindstone 9, one having a cylindrical outer periphery can be used (see FIG. 5).
(Finishing with a blanket) Finishing with a buffing (buffing) according to the above-mentioned process.
The quilt is lowered from top to bottom along the z-axis, brought into contact with the surface and rotated.

The comb using the comb blade is processed with a rotating grindstone, so the finish is good and can be widely used from the field of barber to personal use.
Further, according to the method for manufacturing the comb blade, the comb blade can be processed by numerical control using a grindstone, so that the comb blade can be manufactured at a reasonable price. Even if it is not an operator, it is possible to provide a high-precision barber comb comb blade.
In addition, the comb using the comb blade according to the present invention can obtain a stable cut rate even if the angle to the hair is changed or the front and back of the heel are changed, and the skill of a skilled barber can be fully exhibited. .

It is a perspective view which shows the shape of the front-end | tip of the element of the comb blade for a firewood basket by this invention. It is a figure which shows the shape of the front-end | tip of the element of the comb blade for a firewood basket by this invention. It is a top view of the whistling blade in which the ditch | groove is formed in the front-end | tip of the element of the comb blade for whistling. It is the perspective view which illustrated arrangement | positioning of the blank of a comb blade, and a rotating grindstone in order to demonstrate the process of a whispering blade. It is the schematic for demonstrating the positional relationship of the rotary grindstone and the element of a comb blade in the process which makes the thickness of the blade of one side sandwiching the ditch | groove for the combing hair formed in the front-end | tip of a comb blade thinner than the other. .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Comb blade blank 2 Comb blade element 3 Comb blade groove or valley 4 Comb blade peak 5 Axle hole 6 Comb blade element tip groove 7 Comb blade blank edge 9 Rotating grindstone 10 (x ') Grinding wheel rotation axis 21 Left side of comb blade element 22 Right side of comb blade element 23 Tip surface side slope of comb blade element (thicker one)
24 Tip surface side slope of the comb blade element (thin one)
25 The tip of the comb blade element (thicker)
26 The tip of the comb blade element (thin one)
28 The back of the comb blade
29, 30 Groove slope

Claims (3)

In a comb blade for a firewood that prepares a blank that is the original shape of a comb blade, performs machining on the surface of the blank, cuts out the elements of the comb blade, and automatically processes the tip using a grindstone,
A comb blade for combing that is configured by making the blade on one side sandwiching the groove for grasping the combed hair formed at the tip of each comb blade element thinner than the other. Prepare a comb blade blank for firewood, finish and adjust the shape of the comb blade by surface processing, quench, and then remove distortion, then use a rotating grindstone to process grooves or valleys And a method for manufacturing comb comb blades for forming a comb for combing hair at the tip of each comb blade,
A method for producing a comb blade for a wood punch comprising a step of processing with a rotating grindstone so that the thickness of the blade on one side sandwiching the concave groove is thinner than the other.   3. The method for manufacturing a comb for combs according to claim 2, further comprising a step of finishing the surface including the concave grooves at the tips of the elements of each comb blade by polishing a feather.

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