JP3255361B2 - Rice scoop - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a commercial or household rice scoop for scooping rice.

[0002]

2. Description of the Related Art Conventionally, when rice is put into a bowl or the like using rice scoops, a large amount of rice grains adhere to the surface of the rice scoop,
It is often difficult to keep rice scoops and rice cookers in the rice sashimi place, or to perform the next offsite work. For this reason, it is common practice to rub the rice grain attached to the rice scoop on the edge of the rice bowl. However, the rice grains rubbed on the rice bottle in this manner are crushed and pasted to deteriorate the taste of the rice, and also give the person who eats a visual discomfort and lose their appetite. In addition, the rice grains attached to the rice scoop are difficult to remove even when the rice scoop is washed, and it takes time to clean.

[0003] In consideration of such adhesion of rice grains, those having a smoother surface and those having been subjected to a surface treatment with a fluororesin or the like to improve slipperiness are also manufactured. Also,
There has been proposed one having an infinite number of spherical projections and depressions on the surface (for example, Japanese Utility Model Laid-Open No. 6-38837).

[0004]

However, even in the rice sashimi which has been smoothed as described above, it is not possible to effectively prevent the adhesion, and as described above, many rice grains are rubbed against the edge of the rice bowl to remove them. Need to be removed. The following are known as causes of adhesion of rice grains. That is,
If you leave rice scooped in freshly cooked rice and leave it
As the rice scoop cools, it can be clearly seen that the paste-like coating adheres. The rice grains adhere to the paste-like film, and unless the film is adhered, rice scoop without rice grains cannot be made.

[0005] In view of the prevention of the adhesion of such a paste-like coating, the above-mentioned surface provided with numerous spherical projections and depressions has an effect of preventing the adhesion of rice grains. That is,
If there are countless projections on the surface of the scooping plate portion of the rice scoop, the glue-like coating produced by the rice will adhere only to the tip end surfaces of the projections, and the adhesion area is small and the coating is unlikely to be formed. Since the tips and the bottoms of the projections and the depressions are spherical and smooth, the film is hardly formed. Further, even if the film is stretched, since the air can flow through the concave portions between the convex portions, the film is immediately peeled. Therefore, the rice grains are hard to adhere, and after the rice is disturbed, little rice grains remain on the rice scoop surface. Further, as described above, since the pasty film is hardly formed and the adhesion of the rice grains is weak, the adhered rice grains can be easily washed off even during washing.

However, the effect of preventing the adhesion of rice grains by the projections has not been sufficient. In particular, the edge of the scooping plate portion of the rice scoop is not provided with the above-described protrusions and recesses due to the mold for resin-molding the rice scoop, and rice grains often adhere to the edge of the scooping plate portion. Was. Then, the present inventor tried various improvements, but found that if the effect of preventing the adhesion of the rice grains was enhanced, another problem that stains remained would occur.

An object of the present invention is to provide a rice scoop which is hard to adhere to rice grains, can be prevented from adhering to an edge portion, and is easy to manufacture. Another object of the present invention is to provide a rice scoop which is hardly adhered with rice grains and hardly remains dirt.

[0008]

The rice scoop of the present invention is
An infinite number of spherical projections are provided on the surface of the scooping plate, and the surface of the scooping plate is a roughened surface.
The “spherical shape” is not limited to a spherical shape geometrically, but may be a gently convex curved surface, as long as the vertical cross-sectional shape in each direction including the central axis does not extremely differ. According to the rice scoop of this configuration, since the countless spherical projections are provided on the surface of the scooping plate portion, adhesion of rice grains is reduced by preventing adhesion of a paste-like film as described above. The adhesion prevention effect of the innumerable projections and the adhesion prevention effect of the roughened surface further reduce the adhesion of rice grains on rice scoop. The surface roughening process can be freely and easily applied to the entire scooping plate portion of the rice scoop by various processing methods or processing methods, unlike the molding of the convex portion by the mold. Therefore, in the resin molding, the edge portion of the scooping plate portion, which is difficult to provide a convex portion due to the mold, can also be a roughened surface, and the effect of preventing adhesion of rice grains at this edge portion is large.

[0009] In the present invention, of providing the surface of the scooping plate portion, not only the convex portions may be provided by mixing the spherical convex and concave portions. Further, the roughened surface may be a sandblasted surface or a corrosion-treated surface (also referred to as a corroded surface). According to these sandblasting and corrosion treatment, roughening treatment can be easily performed up to the edge of the scooping plate portion of rice scoop. Also,
It is easy to treat the surface roughness to an appropriate one from the viewpoint of preventing adhesion of rice grains.

[0010] The surface roughness of the roughening treated surface is, 80MyumRz over a ten-point average roughness shall be the following 200MyumRz. the above
For the size of the convex part, both the diameter dimension and the height dimension
500 μm or more and 2000 μm or less. When the surface roughness is smaller than 80 μmRz, the effect of preventing adhesion of rice grains is reduced. When the surface roughness is larger than 200 μmRz, the effect of preventing the adhesion of rice grains is good, but another problem that dirt remains is caused.

[0011]

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of the rice scoop 1 and FIG. 2 is a plan view thereof. This rice scoop 1 is a scooping plate 1
a and a handle portion 1b extending from the base end of the scooping plate portion 1a, and is formed of an integrally molded product of synthetic resin by injection molding or the like. The scooping plate portion 1a is curved in a cross section along the longitudinal direction so that the upper surface is a concave curved surface, but may be a flat surface. The surface of the scooping plate portion 1a is formed between the convex portions 2 with a myriad of fine convex portions 2 of a uniform shape arranged at equal intervals vertically and horizontally (or in a staggered arrangement) over the entire surface except for the edges. Recess 3 is formed. In addition, the entire surface of the scooping plate portion 1a is a roughened surface 4 that has been subjected to a roughening process after resin molding. Scooping plate 1a
The above-mentioned convex portion 2, concave portion 3, and roughened surface 4 are provided on both the upper surface and the rear surface of the surface. The surfaces of the convex portions 2 and the concave portions 3 also become the roughened surfaces 4.

Each of the projections 2 has a spherical end at least. In this embodiment, as shown in an enlarged cross-section in FIG. 3, a convex portion 2 projects hemispherically from the scooping plate portion 1a, and a portion between the hemispherical convex portions 2 is a concave portion 3. In addition, as shown in FIG.
The scooping plate 1a may be further hemispherically recessed from the surface. Each concave portion 3 concaved in a hemispherical shape may be provided so as to match the position of each convex portion 2 on the surface opposite to the scooping plate portion 1a.

The size of the convex portion 2 is as follows: the diameter dimension d and the height dimension h are both a minimum of 500 μm and a maximum of 2000 μm.
in the range of μm. The pitch s between the protrusions 2 is, for example, about 1 to 2 times the diameter d of the protrusions 2. In addition, the size of the convex portion 2 (either one or both of the diameter dimension d and the height dimension) may be different depending on the portion of the scooping plate 1a. For example, each protruding portion 2 (2 _A ) near the edge 5 of the scooping plate portion 1a is smaller than the other protruding portions 2. As a result, the convex portion 2 can be resin-molded with a mold to a position as close as possible to the edge portion 5 of the scooping plate portion 1a.
Polypropylene or the like is used as the resin of the rice scoop 1.

As a processing method for forming the roughened surface 4, sandblasting or corrosion treatment can be employed. That is, the roughened surface 4 may be sand blasted or corroded. The surface roughness of the roughened surface is 80 μmRz or more as a ten-point average roughness, and 200 μmRz.
It shall be the following.

According to the rice scoop of this configuration, the scooping plate 1
Since a myriad of spherical convex portions 2 are provided on the surface of a and the surface of the scooping plate portion 1a is a roughened surface 4, when the rice is passed, less rice grains adhere to the surface. In addition, the adhered rice grains can be easily washed off at the time of washing, and dirt hardly occurs. In the scooping plate portion 1a, since the edge portion 5 on which the convex portion 2 is not provided is also a roughened surface 4, the rice grain hardly adheres to the roughened surface. Scooping plate 1a
It is difficult to provide the convex portion 2 on the edge portion 5 due to the mold, but the process for forming the roughened surface 4 can be easily performed. For example, according to the above sandblasting or corrosion treatment, it is possible to easily roughen the edge 5.

[0017]

Next, an experimental example will be described. As a result of conducting an experiment with variously changing the surface roughness of the roughened surface 4 without changing other conditions, when the surface roughness was smaller than 80 μmRz, 10 or more rice grains remained on the scooping plate portion 1a. However, when it was 80 μmRz or more, the number of rice grains remaining in the scooping plate portion 1a was less than 10 grains. The surface roughness of the roughened surface 4 is 20
If it is 0 μmRz or less, there is practically no problem that dirt remains on the scooping plate portion 1a, but if it exceeds 200 μmRz, there is a problem that dirt remains on the scooping plate portion 1a.

[0018]

According to the rice scoop of the present invention, innumerable spherical projections are provided on the surface of the scooping plate portion, and the surface of the scooping plate portion is a roughened surface, so that rice grains hardly adhere. In particular, adhesion to the edge can be prevented, and the production is easy. The surface roughness of the roughened surface is 80 μm in ten-point average roughness.
mRz or more, because of the less 200MyumRz, after having excellent effect of preventing adhesion rice grains, are also eliminated contamination remains a problem.

[Brief description of the drawings]

FIG. 1 is a side view of a rice scoop according to an embodiment of the present invention.

FIG. 2 is a plan view of the rice scoop.

FIG. 3 is a partially enlarged sectional view of the rice scoop.

FIG. 4 is a partially enlarged cross section of a rice scoop according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rice scoop 1a ... Scooping plate part 1b ... Handle part 2 ... Convex part 3 ... Concave part 4 ... Roughened surface 5 ... Edge

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-90121 (JP, A) JP-A-2-78148 (JP, U) JP-A-11-299660 (JP, U) JP-A-6-90 38837 (JP, U) Japanese Utility Model 60-129245 (JP, U) Utility model registration 3062484 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 43/28

Claims (4)

(57) [Claims] To 1. A rake surface of the plate portion is provided with protrusions countless spherical, and the table surface of the scoop plate portion, the roughening treated surface <br/>, surface roughening treatment Surface roughness of the surface
80 μmRz or more and 200 μmRz or less;
Size is 50 mm for both diameter and height
Rice scoop with 0 μm or more and 2000 μm or less . To 2. A rake surface of the plate portion, it provided a mix of countless spherical convex portion and the spherical concave portion, and the table surface of the scoop plate portion, the roughening treated surface, the crude Surface treatment
Surface roughness of 80 μmRz or more as a ten-point average roughness, 20
0 μmRz or less, and the size of the projection is
And height dimensions are 500 μm or more and 2000 μm
m or less . 3. The scruff according to claim 1, wherein the roughened surface is a sandblasted surface. Wherein said roughening treated surface is corrosion treatment surface according to claim 1 or paddle according to claim 2, wherein.