JPS6219288Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention relates to a small-sized juicer for general household use.
This relates to the structure of the centrifugal separation cage.

(b) Conventional technology A conventional centrifugal separation cage is shown in FIG.

In conventional centrifugal separation cages, a reinforcing frame made of metal or synthetic resin is attached to the upper periphery of a thin metal plate-like filter with a large number of through holes, to prevent deformation of the centrifugal separation cage due to high-speed rotation. There is.

By the way, when the reinforcing frame of the filter is formed by molding a synthetic resin material, the strength becomes a source of concern compared to a reinforcing frame made of metal. That is, for a centrifugal separation cage that rotates at high speed, the attachment part of the reinforcing frame is farthest from the central axis of rotation, and the reinforcing frame is heavier than the filter part, so it is affected by the largest centrifugal force. Moreover, it is difficult to form a centrifugal cage into a perfect circle in terms of precision, and the weight also becomes unbalanced depending on the location, so the centrifugal cage is deformed during the transition from a stopped state to high-speed rotation. Furthermore, most of the centrifugal force applied to the reinforcing frame affects the joint between the reinforcing frame and the filter, and if the joint does not have sufficient strength, it will break and be truly dangerous.

The joint of the conventional reinforcing frame with the filter is formed parallel to the bottom of the centrifugal cage.
For this reason, the joint part has an acute angle shape with respect to the filter surface and becomes thin, and there is a risk that cracks or fractures may occur at the joint part due to the centrifugal force applied to the reinforcing frame.

In addition, since joining the reinforcing frame to the filter by molding is originally a joining of different materials, it is difficult to obtain a perfect tight joint. Even if a reinforcing frame is formed, complete adhesion is still impossible.

As mentioned above, the conventional reinforcing frame shape is susceptible to tearing due to centrifugal force, so the molding process conditions must be strictly controlled and care must be taken to prevent gaps from forming at the joint between the filter and the reinforcing frame. It was not possible to obtain a centrifuge cage with sufficient strength.

(c) Purpose of the invention The present invention has been made in view of the problems of the prior art as described above, and aims to improve the joint between the filter and the reinforcing frame in a centrifugal separation cage, thereby increasing the strength of the reinforcing frame. The purpose is to

(d) Structure of the invention A thin metal plate filter provided with a large number of transparent holes is bent into an inverted truncated cone shape, and the upper opening periphery of the filter is bent toward the outer circumference to create a step. At the same time, a reinforcing frame made of synthetic resin is provided to cover the stepped portion, and the reinforcing frame has an inner surface flush with the inner surface of the filter, and a lower end portion of the filter is thick, and the lower end surface is made flush with the inner surface of the filter. It is perpendicular to the outer surface.

(e) Embodiment FIGS. 1 and 2 are cross-sectional views of the main parts of a pumper and centrifugal cage according to an embodiment of the present invention.

1 is a lid made of synthetic resin.
A material charging tube 2 is integrally formed approximately in the center of the lid 1.

The lid 1 is for covering the upper opening of a junk container 3, and the junk container 3 has a waste receiving portion 4 therein and houses a centrifuge basket 5 therein.

The centrifugal separation cage 5 has a large number of youth permeation holes 14.
A filter 6 made of a metal thin plate provided with the above is bent into an inverted truncated cone shape, and a reinforcing frame 7 made of a synthetic resin material is molded on the upper peripheral edge of the filter 6. The lower end of the filter 6 is inserted into and fixed to a turntable 8 made of synthetic resin, and a cutter plate 9, which is a metal plate with a protruding cutting blade, is mounted on the upper surface of the turntable 8 by means of rivets or the like. It is fixed.

The lower edge of the material supply cylinder 2 is connected to the cutter plate 9
The filter 6 is formed with a small gap between it and the upper surface of the reinforcing frame 7. A ring-shaped waste receiving portion 10 is formed below the filter 6, and the waste receiving portion 4 is integrally formed on the outer periphery of the waste receiving portion 10 and adjacent to the reinforcing frame 7.

The filter 6 and reinforcing frame 7 will be explained with reference to FIG.

The upper opening periphery of the filter 6 is stepped in the outer circumferential direction to form a stepped portion 11 . Then, the reinforcing frame 7 is formed via the stepped portion 11 by molding. At this time, the upper end of the stepped portion 11 is connected to the reinforcing frame 7.
The inner surface of the reinforcing frame 7 is flush with the inner surface of the filter 6, and the lower end 12 of the reinforcing frame 7 is thick.
Its lower end surface is perpendicular to the outer surface of the filter 6. A waste guiding part 13 for guiding waste to the waste receiving part 4 is integrally formed on the extension of the reinforcing frame 7.

(e) Effects of the invention As described above, the invention bends a metal filter into an inverted truncated cone shape, and processes the upper opening periphery of the filter to form a stepped part in the outer circumferential direction.
The reinforcing frame made of synthetic resin that covers the stepped portion has its inner surface flush with the inner surface of the filter, and the lower end surface of the reinforcing frame is perpendicular to the outer surface of the filter. Sufficient wall thickness and strength can be obtained for the joint between the filter and the reinforcing frame, and even if a small gap occurs between the filter and the reinforcing frame, debris, etc. enters the gap, and the centrifugal force applied to the reinforcing frame increases. It has excellent advantages such as being able to provide a centrifugal separation cage for Jusa that is safe and durable, such as being able to prevent breakage during high-speed rotation.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the main part of a pumper according to an embodiment of the present invention, FIG. 2 is a sectional view of the main part of a centrifugal separation basket, and FIG. 3 is a conventional example corresponding to FIG. 2. 6... Filter, 11... Stepped portion, 7... Reinforcement frame, 12... Lower end surface.

Claims (1)

[Scope of utility model registration request] A metal filter is bent into an inverted truncated cone shape, and the upper opening periphery of the filter is stepped in the outer circumferential direction to form a stepped portion, and a reinforcing frame made of synthetic resin that covers the stepped portion has an inner surface. A centrifugal separation cage for a juicer, characterized in that the reinforcing frame is not flush with the inner surface of the filter, and the lower end surface of the reinforcing frame is perpendicular to the outer surface of the filter.