JPH0513338Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a container lid for a cooking machine such as a mixer.

(Prior art) This type of container lid is used to prevent the contents from spilling out from a container that has a stirring blade such as a cutter that rotates inside. Japanese Utility Model Publication No. 57-24273 has an improvement that prevents the liquid from being released from the container by pushing the lid upwards.
It is disclosed in Japanese Patent Publication No. 60-40848, Japanese Patent Publication No. 61-6646, etc.

Japanese Utility Model Publication No. 57-24273 discloses that in order to make the container lid adhere to the inner surface of the container, the lid is divided into a plurality of parts on the circumferential surface, and elastic linear protrusions are provided with the lower ends of each part aligned in the horizontal direction and each part inclined. The liquid ring rising from the direction is splashed down by the slope of the linear protrusion to facilitate sealing and cleaning, and the slope allows the liquid mixture to flow down without accumulating, as described in Japanese Patent Publication No. 60-40848. The invention has a configuration aimed at preventing leakage of liquid in the container, and includes a cup having a cutter for cutting inside and a lid installed on the top of the pot to close an opening on the top surface of the pot. The inner surface of the lid has a ring-shaped protrusion with a simple slope that touches the inner edge of the opening of the tip when the lid is attached. However, since the opening of the tip is constricted to a small diameter, the protrusion causes the liquid rising inside the tip in a spiral flow to flow irregularly downward into a downward vortex. The effect of promoting stirring and mixing cannot be expected. In addition, the invention described in Japanese Patent Publication No. 61-6646 provides a filling funnel that opens circularly from the upper surface to the center of the lower surface of the lid body, and has a tangential rib that matches the rotational direction of the cutter on the outer periphery of the opening edge, and is rotated by the cutter. The upward movement of the liquid ring formed by the liquid (medium) collides with the ribs to generate a vortex, and this vortex isolates the upper end of the liquid ring from the lower surface of the lid, thereby reducing the vertical upward force. It must be sealed securely.

As mentioned above, these container lids are intended to prevent the contents from leaking, and are not intended to improve the efficiency of mixing and stirring the contents. To explain this with reference to FIG. 6, the liquid mixture d in the mixer container is raised along the inner wall of the container a by the rotational force of the stirring blade rotating in the container a, and hits the lower surface of the linear protrusion c. Leakage from the container a is prevented by bouncing back in the direction of the inclination of the protrusion c. That is, the liquid mixture d spreads over the inner wall of the container a and the linear protrusions c on the lid b.
A small amount of liquid mixture d has entered the gap A between
This prevents water from leaking out of container a. Furthermore, as shown in FIG. 3, conventionally, linear protrusions 7 are provided at a plurality of locations on the inner surface of the container 1 in order to improve stirring and mixing. This is because the liquid mixture 11 rotated by the stirring blade 3 comes into contact with the protrusion 7, causing some variation in the regular flow, forming a spiral flow that rises along the inner surface 1 of the container and descends toward the center. The effect of the vortex phenomenon in the direction is a simple flow induced by the rotation of the stirring blade 3, and is insufficient to promote stirring and mixing.

(Problems and objectives to be solved by the present invention) The purpose of the present invention is to improve the efficiency of mixing and agitating the contents of a container. about,
More effective mixing and agitation is achieved by disturbing the flow of the contents rotating in a vortex by the stirring blades and increasing the degree of contact with the stirring blades.

(Means for Solving the Problems) The container lid of the cooking machine of the present invention is made to meet the above-mentioned purpose, and is a container lid that has a stirring blade inside and is removably fitted to a container for mixing liquid materials. The slanted surface of the lower end of the fitted body of the lid is integrally formed as a radial funnel-shaped wavy annular ring.The radial wavy annular ring stirs the liquid ring that rises along the inner surface of the container by being stirred by a stirring blade such as a cutter. By changing the direction of the falling liquid, the flow of the spiral liquid ring is disturbed and the stirring efficiency is improved.

(Example) Fig. 1 is a longitudinal sectional view for explaining the function of the present invention, Fig. 2 is an enlarged longitudinal sectional view of the same, Fig. 3 is an enlarged plan view of the container, and Fig. 4 is an enlarged longitudinal sectional view of the same.
The figure is a perspective view of the lid of the present invention seen from below.

In Figs. 1 to 3, reference numeral 1 denotes a cooking machine container such as a mixer, which has a rotating shaft 2 passing through the bottom of the container from below, and is provided with a stirring blade 3 made of a cutter at the upper end of the container.
Reference numeral 4 denotes a lid main body, which is made of an elastic material, and has a fitting cylinder 5 on its lower outer periphery that tightly fits into the inner periphery of the upper end of the container 1.
A funnel-shaped wavy annular ring 6 (FIG. 4) that slopes downward from the lower end circumference of the body 5 to the center is integrally formed with the lid body 4. 6a is a corrugated portion of the annular ring 6.

Reference numeral 7 denotes protrusions having a triangular horizontal cross section, which are provided at regular intervals of 90°, 120°, etc. on the inner circumference of the container 1.

(Operation and Effect) To explain the operation of the present invention, the mixed liquid in the container 1 rises as a liquid ring 11 while being rotated by the stirring blade 3, and reaches the slope of the radially corrugated annular ring 6a of the annular ring 6. .

At this time, due to the relatively large centrifugal force of the mixed liquid with low viscosity in the early stage of mixing, most of it collides with the slope 6a of the annular ring 6 in a jumping manner, and is struck as shown by the arrow in Fig. 2. The liquid falls into the vortex-like liquid ring 11, and the vortex of the liquid ring 11, which is about to rotate at a constant rate according to the rotation of the stirring blade, is disturbed to create an irregular flow. This increases the degree of contact with the stirring blade and improves the mixing and stirring efficiency. Moreover, as the viscosity of the mixed liquid increases, the above-mentioned leaping phenomenon decreases, and most of it is pushed out from the inner circumferential surface of the container 1 into the annular ring 6 while rotating, and flows from the lower edge of the liquid ring 1 to the lower liquid ring 1.
When the particles fall into the vortex No. 1, they are scattered in multiple directions by the action of the corrugated ring to create an irregular turbulent flow, thereby increasing the effect of stirring and mixing.

As described above, the present invention further improves the mixing and stirring effect by adding random flow by the radial funnel-shaped waveform shape of the liquid ring.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view for explaining the function, Fig. 2 is an enlarged longitudinal sectional view of the same, Fig. 3 is an enlarged plan view of the container, Fig. 4 is a perspective view of the lid of the present invention seen from below, and Fig. 5 is a conventional one. FIG. 3 is a partially enlarged cross-sectional view of the container lid. 1... Container, 2... Rotating shaft, 3... Stirring blade, 4
. . . Lid main body, 5 . . . Fitting body, 6 .

Claims (1)

[Scope of Claim for Utility Model Registration] In a container lid that is removably fitted to a container that mixes liquid materials and has a stirring blade inside, the lower end inclined surface of the fitting body of the lid body is formed into a radial funnel-shaped wavy annular ring. Features cooking machine container lids.