JPH0344125Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an improvement in the structure of an oil strainer with a disposable part.

[Problems to be solved by conventional techniques and ideas] After cooking oily foods such as tempura, in order to maintain the oil in a good condition, filtration is usually performed to remove foreign substances from the oil. For this purpose, an oil strainer made of a metal mesh placed on top of a storage container has conventionally been used.

However, since oil has considerable viscosity, dirt and dust tend to adhere to the oil that adheres to the metal mesh after filtration, making it unhygienic. Therefore, if the metal mesh becomes heavily soiled after long-term use, it is necessary to clean the metal mesh each time.

As a solution to the above problems, oil strainers using paper filters are commercially available. Here, the paper filter is cheap and disposable, so the complicated cleaning work described above is not required. However, used tempura oil contains not only relatively large foreign substances that can be removed with a paper filter, but also impurities that cannot be removed with a paper filter. Therefore, as the number of times it is used increases, tempura oil acquires color and odor. Paper filters cannot remove very fine impurities that cause these colors and odors.

On the other hand, in order to remove the color and smell of tempura oil mentioned above, oil strainers that combine activated carbon and paper filters are also commercially available. However, activated carbon is stored in a metal cartridge and is configured separately from the paper filter. Therefore, the overall size becomes considerably large. Additionally, the activated carbon in the cartridge must be replaced frequently. Otherwise, dirt, dust, etc. will adhere to the oil adhering to the surface of the activated carbon, and will be mixed into the oil to be filtered.

However, there are models on the market that make the cartridge containing activated carbon disposable as well, but in that case, the metal cartridge is also disposable, which increases the cost.

Therefore, the purpose of this invention is to provide an oil strainer that does not require complicated handling work because it is equipped with a disposable part, and that can effectively remove colors and odors attached to oil. .

[Means for Solving the Problems] The oil strainer of this invention includes a support frame and a disposable filter member inserted into the support frame. The support frame is formed of an inverted truncated cone-shaped member that has an oil passage hole formed at the bottom, is open toward the top, and has at least one stepped portion with a different diameter at an intermediate height position. On the other hand, the filter member is formed by molding a paper filter containing activated carbon into a cup shape.

There are various structures in which activated carbon is mixed into paper filters, including those in which activated carbon is injected into the paper filter, those in which activated carbon is attached and fixed to the surface of the paper filter, and those in which the activated carbon layer is sandwiched between multiple paper filters. can be adopted.

[Function] Since the support frame is combined with a disposable filter member, the filter member only needs to be thrown away each time it is used, and no complicated cleaning or replacement work is required.

Furthermore, since the filter member is a paper filter mixed with activated carbon, it is possible to effectively remove the color and smell of oil. On the other hand, foreign substances in the oil are removed by a paper filter.

[Embodiment] FIG. 1 is a cross-sectional view showing an embodiment of this invention in use. Here, the oil strainer of the embodiment is installed in the upper opening of an oil pot 1 for storing used oil. The oil strainer has an inverted truncated cone-shaped support frame 2,
and a filter member 3 inserted into the support frame 2.

As shown in FIG. 2, the support frame 2 is constructed by molding, for example, synthetic resin or thick metal foil, and has a stepped portion 2 of different diameter at an intermediate height position.
It has a and 2b. These different diameter stepped portions 2a and 2b are
It is provided for stably placing it on oil pots 1 of various sizes.

Further, as shown in FIG. 4, the support frame 2 has holes 2c for allowing oil to pass downward. On the other hand, the upper part of the support frame 2 is open as shown in FIG. 2, and a flange 2e is formed outward from the periphery of the upper opening 2d, and a hem is provided on the outer periphery. ing. The flange 2e is provided to increase the strength of the support frame 2 in the radial direction. Note that the different diameter step portions 2a and 2b mentioned above
It also functions to increase the strength of the support frame 2 in the radial direction. Therefore, the support frame 2 can be constructed from a relatively thin material.

On the other hand, the filter member 3 inserted into the support frame 2
As shown in FIG. 3, it has a shape formed by molding a paper filter into a cup shape. The paper filter material itself can be made of the same material as paper filters used in conventional oil strainers. However, in this invention, activated carbon is mixed into the paper filter. In this embodiment, activated carbon is inserted into and fixed in a paper filter.

In use, as shown in FIG. 1, the support frame 2 is placed in the upper opening of the oil pot 1, and
Just insert cup 3 inside. In this case, the support frame 2 has an inverted truncated cone shape, and has stepped portions 2a and 2b with different diameters.
Therefore, it can be adapted to oil pots 1 of various diameters. After the oil has been filtered from above the filter member 3, it is only necessary to remove it from the oil pot 1 and throw away the filter member 3, and the next time it is used, it is only necessary to combine it with a new filter member 3. Therefore, the user is freed from complicated cleaning work. Furthermore, unlike oil strainers using conventional activated carbon cartridges, there is no need to periodically replace the activated carbon. Furthermore, since the only disposable part is the filter member 3 made of a paper filter mixed with activated carbon, it can be seen that the cost is not high.

In the above embodiment, the oil passage holes provided in the support frame 2 were formed with a large number of holes 2c having a circular planar shape, but as shown in FIG. A fan-shaped hole 12b may be formed by providing a rib 12a having a shape on the bottom surface. That is, portions that can prevent the filter member 3 from falling, such as the bottom surface 2f in FIG. 4 and the ribs 12 in FIG.
The shape of each is arbitrary as long as it is provided with a and a hole for oil passage as described above.

Furthermore, it is sufficient that at least one different diameter step portion is formed for the different diameter step portions 2a and 2b.

Further, the flange 2e provided at the upper opening of the support frame 2 is not essential, and instead of the flange 2e, a hemline may be formed around the upper opening.

[Effects of the invention] As described above, according to this invention, the filter member inserted into the support frame is formed by forming a paper filter containing activated carbon into a cup shape.
Not only can the solid foreign matter present in used tempura oil be removed with a paper filter, but also the attached color and odor can be effectively removed with the activated carbon. Moreover, since the activated carbon is mixed into the paper filter, there is no need to replace the activated carbon separately from the paper filter each time it is used, and there is no need for a case to store the activated carbon, which reduces the overall size. It is also possible to make it smaller.

Therefore, it is possible to obtain an oil strainer that is easy to handle and is inexpensive.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing an embodiment of this invention in use, and FIG. 2 is a perspective view showing a support frame.
FIG. 3 is a perspective view showing the filter member, FIG. 4 is a bottom view of the support frame, and FIG. 5 is a plan view for explaining another example of oil passage holes provided on the bottom of the support frame. . In the figure, 2 is a support frame, 2a and 2b are stepped portions with different diameters, 2c is a hole for oil passage, and 3 is a filter member.

Claims (1)

[Claims for Utility Model Registration] (1) An inverted truncated cone-shaped cone with an oil passage hole formed at the bottom, open upward, and having at least one stepped portion with a different diameter at an intermediate height position. An oil strainer comprising: a support frame; and a filter member formed by molding a paper filter containing activated carbon into a cup shape so as to be inserted into the support frame. (2) The oil strainer according to claim 1, wherein the activated carbon is inserted into the paper filter.