Mortar and pestle

Abstract

To provide a new mortar that does not cause a decrease in grating efficiency and does not clog. [Solution] The mortar is a bowl-shaped resin container body 1 having a spherical inner bottom surface 11 and an arcuate peripheral wall surface 12 that is continuous with the spherical inner bottom surface 11. The spherical inner bottom surface 11 has a spherical radius R1 of 50 to 54 mm and a planar diameter φ2 of about 60 mm inside the container. The arcuate peripheral wall surface 12 has an arcuate radius R2 of 28 to 30 mm and an upper edge that extends to a height of 30 to 35 mm from the inner bottom. The resin container body 1 has a height H1 of about 55 to 60 mm and an inner diameter φ1 of about 90 mm. The spherical inner bottom surface 11 and the arcuate peripheral wall surface 12 are provided with radially arranged, parallel, triangular wave-shaped protrusions 14 whose cross section has a small inclination and a triangular wave shape with both bottom widths of 5 mm or more and a height of 0.5 mm or less.

Description

[Technical Field]

[0001] This invention relates to a mortar. [Background technology]

[0002] As is well known, a mortar is a cooking utensil made of resin (see Patent Document 1) or ceramic (see Patent Document 2), and has fine grooves formed inside a container with various shapes, such as a mortar shape similar to an inverted triangle, or a basin shape with a nearly flat bottom, and is used to grind food inside the container with a pestle.

[0003] In ceramic containers, the ridged stripes inside are formed by tracing the bottom of the pot with a sawtooth comb plate before firing. The cross-sectional shape is generally a triangular wave cross-section as shown in Figure 3(b) of Patent Document 2. Furthermore, with a triangular wave cross-section, the valleys of the ridged stripes are acute and deep, which causes crushed food to get into the valleys and make cleaning difficult. To solve this problem, Patent Document 2 proposes ridged stripes with an arc-shaped wave cross-section. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 51-17984. [Patent Document 2] Japanese Patent Publication No. 2001-346702. Summary of the Invention [Problem to be solved by the invention]

[0005] If the mortar's grooves are triangular, the crushed food gets into the grooves, making cleaning difficult, and if an arc-shaped groove is used, the efficiency of the grating decreases. Therefore, this invention proposes a new mortar that does not clog and does not cause a decrease in the efficiency of the grating. [Means for solving the problem]

[0006] The mortar of this invention is a bowl-shaped resin container body with a spherical inner bottom surface and an arcuate peripheral wall surface that is continuous with the spherical inner bottom surface, and the inner bottom surface and peripheral wall surface are radially provided with parallel mountain-shaped protrusions that have a slightly inclined triangular wave shape in cross section, with both sides of the base width at least 5 mm and a height of less than 0.5 mm.

[0007] The mortar is used to grate food (mainly sesame seeds) in the same way as previous utensils, and the tip of the pestle is arcuate, which allows it to slide easily against the spherical bottom of the mortar, so the spherical bottom and the pestle crush and crush food with the peaks of the mountain-shaped ridges, and of course the mountain-shaped ridges on the peripheral wall can also be used to crush and crush food in the same way.

[0008] In particular, this device has a cross section of the mountain-shaped protrusions that is a shallow triangular wave shape with both bottom widths of 5 mm or more and a height of 0.5 mm or less, so that crushed food does not get stuck in the valleys of the mountain-shaped protrusions. [Effects of the Invention]

[0009] The configuration of this invention is as described above. The bottom surface of the container, which serves as the main sliding surface, is formed spherically, and by adopting a mountain-shaped protrusion with a shallow valley, we have been able to provide a mortar that is easy to clean and does not clog, without compromising the grinding function. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is an overall perspective view of an embodiment of the present invention; [Figure 2] Same plan view. [Figure 3] Same cross-sectional view. [Figure 4] An enlarged cross-sectional view of the same ridge. DETAILED DESCRIPTION OF THE INVENTION

[0011] Next, an embodiment of the present invention will be described. The mortar shown in this embodiment is made of transparent resin and has a bowl-shaped container body 1 with legs 2 for stable placement on a table (such as a kitchen counter) and a spout recess 3 on the upper edge.

[0012] The container body 1 is a bowl-shaped container with an inner diameter φ1 of 93 mm, a height H1 of 58 mm, and a thickness t of 2 mm, and the lower inner surface is formed as a grinding surface. The grinding surface is formed in an area consisting of a spherical inner bottom surface 11 and an arc-shaped peripheral wall surface 12 that is continuous with the inner bottom surface 11.

[0013] Specifically, as shown in Figure 3, the spherical inner bottom surface 11 is a spherical surface with a spherical radius R1 (approximately 52 mm) and a planar diameter φ2 of approximately 60 mm inside the container body 1, and the arcuate peripheral wall surface 12 continuing from the spherical inner bottom surface 11 is formed as an arcuate surface with a height H2 from the inner bottom of 32 (30 to 35) mm, a planar diameter φ3 of approximately 90 mm, and an arcuate radius R2 of 28 to 30 mm.

[0014] The upper peripheral wall surface 13 of the arcuate peripheral wall surface 12 is formed in a shape that opens outward from the upper end of the arcuate peripheral wall surface 12 at an angle of about 6 degrees.

[0015] The mountain-shaped protrusions 14 that form the grinding surface have shallow valleys 142 with both bottom widths of 5 mm or more and a height of 0.5 mm or less. In the mortar of this embodiment, the both bottom widths are 6 mm and the height of the peaks 141 is 0.4 mm, as shown in Figure 4.

[0016] The mountain-shaped protrusions 14 are formed by dividing the grinding surface into eight radial parts, forming parallel parts on each divided surface, and forming the grinding surface so that the central ridges 141 of each divided surface are radial, and in particular, the sliding surface is textured.

[0017] The above-mentioned mortar is used to crush and crush food using a pestle, similar to conventional devices, and is particularly characterized by the use of a spherical inner bottom surface and a triangular wave-shaped mountain-shaped ridge with a small incline, and is not limited to the dimensions of the above-mentioned embodiment. [Explanation of symbols]

[0018] 1. Container body 11 Spherical inner bottom surface 12 Arc-shaped peripheral wall surface 13 Upper peripheral wall surface 14 Chevron 141 Minebe 142 Valley 2 legs 3 Spout recess

Claims

1. A bowl-shaped resin container body having a spherical inner bottom surface and an arc-shaped peripheral wall surface continuous with the spherical inner bottom surface, in which the inner bottom surface and peripheral wall surface are radially provided with parallel mountain-shaped protrusions in the shape of a triangular wave with a small inclination, with both bottom widths of 5 mm or more and a height of 0.5 mm or less.

2. The mortar of claim 1, wherein the size of the container body is such that the height inside the container is approximately 55 to 60 mm, the inner diameter is approximately 90 mm, and the lower part has a spherical inner bottom surface and an arcuate peripheral wall surface, the spherical inner bottom surface has a spherical radius of 50 to 54 mm and extends to a range of approximately 60 mm in the planar diameter inside the container, the arcuate peripheral wall surface continuing from the spherical inner bottom surface is an arcuate surface with an arcuate radius of 28 to 30 mm, and the range in which the mountain-shaped protrusions are formed is 30 to 35 mm high from the inner bottom.

3. 3. The mortar according to claim 2, wherein the ridges have a width at both ends of 6 mm and a height of 0.4 mm, and the surfaces of the ridges are textured.

4. 4. The mortar according to claim 1, wherein the container body is integrally formed with legs below the container body for enabling the container body to be stably placed thereon and a recessed spout on the upper edge of the container body.

5. 5. The mortar according to claim 4, wherein the container body is made of a transparent resin.

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