JPH0365173B2 - - Google Patents

Description

[Detailed description of the invention] 【Technical field】

The present invention relates to an oil purifier that simply, safely and cleanly filters contaminated edible oil such as tempura oil that has been used or is in the process of being used, and removes coloring, odor, etc. from the oil.

[Background technology]

An oil purifier that removes coloring and odors by using activated carbon as a filter material was developed in 1974.
- Shown in Publication No. 159280. However, in the method disclosed in this publication, the filter material, which is activated carbon, is placed directly into the container of the oil purifier, making it extremely troublesome to replace the filter material. For this purpose, it is conceivable to use a filter material wrapped in some kind of material and place this filter material inside a container, but in this case, there is a gap between the filter material and the inner surface of the oil purifier body. There is a risk that dirty oil may flow downward through the gap without being purified.

[Purpose of the invention]

The present invention has been made in view of these points, and its object is to provide an oil purifier in which the filter body can be easily attached and detached and can perform reliable filtration.

[Disclosure of the invention]

Therefore, the present invention provides an oil purifier having an oil purifying section in the upper part of the container and an oil storage section in the lower part, in which an opening is formed at the bottom of the oil purifying part and the upper peripheral edge of the filter body provided with the filter material. A flange portion having a larger diameter than the opening is provided in the case, and a filter body is fitted into the opening and the flange portion is placed on the periphery of the opening, and the filter body is removably attached to the container. The is characterized by having a wire mesh-like filter installed therein, and the filter body with the filter material is removable, making it easy to replace, and the opening into which the filter body is inserted. By forming a flange portion on the upper periphery of the filter body with a diameter larger than that of the filter body, the contact area of the filter body with the container is increased, thereby preventing oil from flowing down without passing through the filter body. This is what I did. The present invention will be described in detail below based on the illustrated embodiment. This oil purifier has a bottomed cylindrical shape and has a lid 4 attached to its top opening.
The filters 1 and 2 are disposed in an oil purifying section via a case 8, and the lower part serves as an oil storage section for storing purified oil. First, the container 5 will be explained. It is formed into a low cylindrical shape by press-fitting and welding a disc that will serve as the bottom plate to the bottom of a cylindrical body with the part that will become the spout bulging outside.It is made of metal such as stainless steel or aluminum. A pedestal 6 is attached to the lower surface of the bottom plate, and a handle 7 is attached to the side of the circumferential surface opposite to the portion where the bulging portion 54 serving as the pouring spout is formed. A pedestal 6 made of synthetic resin is attached to the lower surface of the bottom plate of the container 5 via a bottom plate metal fitting 60. The bottom plate fitting 60 has a hole 66 that engages with a positioning projection 65 protruding from the bottom surface of the bottom plate of the container 5.
It also has several countersink parts 67 with female threads cut on the periphery and a fitting hole 68 in the center, and the protrusion 61 in the center of the base 6 is connected to the fitting hole 68. The pedestal 6 is positioned by fitting into the counter sink part 67.
It is fixed to the container 5 via the bottom plate fitting 60 by screws 69 screwed into the bottom plate. Both handles 7 have a main body 70 made of synthetic resin.
and a cover 71, and is attached to the container 5 via a pair of upper and lower handle fittings 76, 76. Each handle metal fitting 76 has its base end fixedly welded to the container 5, and has a countersink part 77 with a female thread cut on the distal end surface. The cover 71 is attached to the main body part 70 by screws 79 to the metal fitting 76. Here, the main body part 70 forms a space 74 between the pair of upper and lower handle fittings 76, 76 into which fingers can be inserted, and between this space and the outer peripheral surface of the container 5, the main body part A partition piece 72 formed integrally with the handle 70 is positioned to prevent the fingers gripping the handle 7 from coming into contact with the outer circumferential surface of the container 5, and the partition piece 72 itself is also placed on the outer circumferential surface of the container 5. Since there is no contact between them and a heat insulating space 73 is provided between them, even when there is high temperature oil in the container 5, the hands and fingers holding the handle 7 may get burned or feel hot. It is made sure that there is no such thing. Further, the upper end of the handle 7 forms a space 75 that is open upward and to both sides with the outer peripheral surface of the container 5 above the upper handle fitting 76.
The knob 14 can be accommodated in this space 75. Next, the structure of the container 5 will be explained. This container 5, which has a cylindrical shape with a bottom and a spout portion formed as a bulging portion 54, has a circular ring body 50 made of metal such as stainless steel or aluminum along its upper inner circumferential surface. is firmly fixed, and an oil filler fitting 55 is removably inserted into the spout. The ring body 50
is a structure in which annular protrusions 51 and 52 in two stages, upper and lower, and a plurality of protrusions (not shown) located above these annular protrusions 51 and 52 protrude inward, The upper annular protrusion 51 has a trapezoidal cross section;
The lower annular protrusion 52 has a semicircular cross section, and the upper space inside the container 5 is connected to the ring body 5.
The horizontal cross section surrounded by 0 divides it into a circular part and a spout part formed as an exposed part 54. Note that the upper end of the container 5 and the upper end of the ring body 50 are cut out at the portions facing the space 75 of the handle 7. The bulging portion 54 serving as a spout is formed from a position slightly below the vertical center of the container 5 to the upper end of the container 5, and the upper end is cut off diagonally. The oil filler fitting 55 is inserted therein as described above. Swelling part 5
The oil filler fitting 55, which is inserted until its lower end abuts a protrusion 56 protruding from the inner surface of the oil filler 55, has a semicircular horizontal cross section, and the curvature of the horizontal cross section increases upward. When inserted into the spout, it protrudes above the upper end of the bulge 54 cut off as described above, and creates a gap 57 between it and the inner surface of the bulge 54.
It has become something that gives rise to The lid 4 that closes the upper end opening of the container 5 formed as described above is composed of two parts: a main lid 40 and an oil filling lid 41. The main lid 40 has a seal ring 42 attached to its outer circumferential surface that contacts the inner circumferential surface of the ring body 50, and the above-mentioned protrusions in the ring body 50 are fitted into the ring body 50 and rotated. A plurality of engagement grooves (not shown) are formed on the outer circumferential surface, and a pair of semicircular recesses that become deeper toward the center are provided at intervals on the upper surface. Therefore, it is provided with a knob 44 formed between both recesses, and further provided with a recess 45 on one end side of the knob 44 on the upper surface. The base end of the oil filler lid 41 is pivotally supported by the main lid 40, and one end of a spring 46 made of stainless steel or the like arranged in a recess 45 of the main lid 40 is latched to the lower surface of the oil filler lid 41. The oil filler lid 4
When you push down 1, the spout closes and dirt, dust, etc.
This prevents insects from entering, and the spout opens when you wake it up. Here, the opening and closing of the spout by the tilting operation of the oil filler lid 41 is performed in both directions by reversing the biasing direction of the spring 46, which is bent in the middle. It has become something that is strongly influenced by In other words, the spring 46 holds both the spout closed state and the spout open state. Now, a cylindrical case 8 is disposed in the upper part of the container 5, and this case 8 partitions an oil storage part at the lower part and an oil purification part at the upper part.
Seed filters 1 and 2 and a filter body 3 are provided. Further, the filters 1 and 2 and the filter body 3 are both arranged in the container 5 via the case 8. The case 8 is housed in the upper part of the container 5 by having its upper edge locked onto the annular protrusion 51 of the ring body 50, and has an arc-shaped hanger 81 attached to the upper part, and a lower part of the case 8. Theba surface 8
A small-diameter cylindrical portion 83 is formed through the small-diameter cylindrical portion 83, and an annular packing 84 having oil resistance is disposed on the inner peripheral surface of the small-diameter cylindrical portion 83. The filter body 3, as shown in FIGS. 3 and 4,
It is configured with a granular first filter material 33 made of activated carbon as the main member for filtration, and is made of a metal such as aluminum and has a cylindrical shape with a bottom and has a bottom plate 35 with a number of holes 38. Inside the oil case 30, a pair of second filter materials 31 and 32 whose upper and lower sides are formed of a nonwoven fabric made of polyester or the like is provided.
A plate 34 made of punched metal that stores the first filtering material 33 in a sandwiched state and has a hole 37 formed in the upper opening of the oil purifying case 30.
It is formed into a cartridge by caulking and fixing. The second filter media 31 and 32 are made of soft non-woven fabric having a mesh finer than that of the first filter media 33, and are provided to prevent the first filter media 33 from flowing out. However, both of the second filter media 31 and 32 here have their peripheral edges caulked to the oil purifying case 30, thereby making the second filter media 31 and 32
This prevents the granular first filter material 33 from flowing out from the gap between the oil filter case 30 and the oil purifying case 30, and prevents oil from flowing without passing through the second filter materials 31 and 32. There is. In addition, in caulking and fixing both the second filter materials 31 and 32, first, as shown in FIGS. After squeezing the oil purifying case 30 inward and caulking it, and then inserting the first filter material 33 up to the stepped part 36 of the oil purifying case 30, as shown in FIGS.
As shown in FIG. 3, the second filter material 31 is caulked together with the plate 34 in which the opening is formed at the stepped portion 36. Along with this caulking, a flange portion 39 is formed at the upper edge. , also board 34
The second filtering materials 31 and 32, each of which is supported on one side by the bottom plate 35 of the case 30, compress the first filtering material 33 between them to suppress unnecessary movement of the first filtering material 33, This prevents the first filtering media 33 from becoming pulverized due to the first filtering media 33 rubbing against each other. This prevents the first filter material 33, which has become a fine powder, from leaking out through the second filter materials 31 and 32 and contaminates the oil, and also improves the filtration performance by blocking the short path of the oil. It's true. The filter 1 is constructed by disposing a wire mesh 11 of 30 to 40 meshes in the lower opening of an inverted semiconical case 10 made of metal such as stainless steel or aluminum. A handle 13 is attached by welding.
Note that the knob 14 is made of synthetic resin, heat-resistant rubber, or the like. The filter 2 is formed by molding paper into a cylindrical shape with a bottom, and in particular has many vertical folds formed on the circumferential surface. It is placed together with the container 5 and housed in the container 5. Filter body 3 formed as a cartridge
is housed in the case 8 from above and is disposed in the small diameter cylindrical part 38 by bringing the flange part 39 at the upper end of the oil purifying case 30 into contact with the gasket 84,
The filter 2, which is a paper filter, is placed in the upper portion having a large diameter, with its lower end peripheral edge resting on the tapered surface 82 of the case 8. The filter 2 and the filter body 3 are installed in the container 5 by putting the case 8 attached thereto into the container 5 and supporting the case 8 by the annular protrusion 51 of the ring body 50 as described above. will be installed. The filter 1 is housed in the container 5 with the upper flange of the case 10 locked to the upper edge of the case 8, and the wire mesh handle 13 is inserted into the notch in the container 5 and the ring body 50. The knob 14 is positioned in the space 75 of the handle 7 by being passed through. Furthermore, at this time, the case 10 of the filter 1 enters inside the filter 2 housed inside the case 8. This prevents the filter 2, which is a paper filter, from falling down. Now, in the oil purifier constructed in this way, the oil used for tempura etc. is poured in with the lid 4 removed, but at this time, the oil is first filtered through the filter 1 which is a wire mesh. After relatively coarse impurities such as dregs are removed, filter 2
At this time, fine sludge-like impurities are removed and then passed through a filter 3. The oil that has reached the filter body 3 is diffused as it passes through the plate 34 with openings and the second filter medium 31, and the colored components are absorbed while passing through the layer of the first filter medium 33, which is activated carbon. and odors are adsorbed and removed. The oil that has passed through each of the filters 1 and 2 and the filter body 3 is stored in an oil storage tank in the lower part of the container 5. At this time, the filter body 3 has a packing 84 on its outer peripheral surface.
Not only contact, but also the flange part 3 of the upper periphery
9 is placed on the stepped part of the packing 84,
The contact area with the case 8 is large and there is almost no gap between the case 8 and the filter body 3, so that the oil that has passed through the filter 2 passes through the filter body 3 reliably. Further, a tapered surface 82 is provided on the case 8, and the gasket 84 is positioned downward by the tapered surface 82, and the upper surface of the flange portion 39 is substantially flush with the upper surface of the peripheral portion of the gasket 84. for,
Oil will not remain in the case 8. Note that the second filter material 32 located at the lower part of the filter body 3 is made thicker than the second filter material 31 located at the upper part, for example, as shown in FIG. It is preferable that the second filter material 31 is slower than the second filter material 31 located above. Although oil passes quickly through the upper second filter material 31, it takes time to pass through the lower second filter material 32, so the adsorption action by the first filter material 33 should be sufficiently performed. This is because it can be done. When reusing the oil stored in the oil storage tank, it is only necessary to open the oil filling lid 41 instead of opening the entire lid 4. When the oil filler lid 41 is opened, the oil filler lid 41 is held in that state by the spring 46, so that the oil filler lid 41 will not close even if the container 5 is tilted. Then, if the container 5 is tilted, the oil will flow into the bulging part 54.
and the case 8, and flows out from the spout. The oil filler fitting 55 that guides the oil flowing from the spout is provided to prevent oil from dripping from the spout, and even if oil drips down the outer surface of the oil filler fitting 55, this For oil, use the oil filler fitting 5
5 and the inner surface of the bulging portion 54, and then returns to the oil storage tank through a small gap between the lower end of the oil filler fitting 55 and the protrusion 56 on the inner surface of the bulging portion 54.
This prevents oil from dripping on the outer surface of the container 5. When discarding impurities accumulated in filter 1,
All you have to do is remove the lid 4, pinch the knob 14, and take out the filter body 1. Even if this operation is performed immediately after purifying the hot oil, the presence of the knob 14 will not cause burns and will not stain the hands. Not only is the used filter 2 discarded and replaced with a new one, but also the filter 3 whose adsorption capacity of the filter medium 33 has disappeared or has reached its bottom is also discarded along with the cartridge and replaced with a new one. However, when replacing the filter 2 and the filter body 3, it is sufficient to take out the entire case 8. To take out the case 8, use the hanging handle 81 provided at the upper end of the case 8. Since it can be used, it can be done without getting the hands dirty. In particular, the vertical dimension of the filter body 3 is longer than the vertical dimension of the gasket 84, and also the vertical dimension of the holding cylinder part 83 of the case 8, that is, the vertical dimension of the opening into which the filter body 3 is inserted. It is longer and the lower part of the filter body 3 protrudes below the case 8, so even when the case 8 and the filter body 3 are in close contact with each other and oil does not flow through the gap. The filter body 3 can be easily taken out by pushing the filter body 3 from below.

【Effect of the invention】

As is clear from the above, since the filter body equipped with the filter material is detachable, it is easy to replace the filter body when the filter material deteriorates. A flange portion with a diameter larger than the opening is provided on the upper periphery of the filter body that is inserted into the opening formed at the bottom of the oil purifying section, and the flange portion is placed on the periphery of the opening. The contact area between the body and the container is large, so there is almost no gap between the filter body and the container, and the oil does not flow down without passing through the filter body. Moreover, the filter installed above the filter body performs preliminary filtration when oil is introduced into the oil purification section, and works to trap substances that would clog the filter body and prevent them from passing through to the filter body side. In addition,
Oil that flows through the filter to the upper surface of the filter often accumulates, so the weight of the oil is applied to the filter to make the lower surface of the flange of the filter come into closer contact with the opening edge of the case opening. Although it is designed to be easy to attach and detach from the body, it is possible to reliably obtain an oil purifying effect by the filter body and the filter placed above the filter body.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the present invention, Fig. 2 is a perspective view of the same as above, Fig. 3 is an exploded perspective view of the filter body of the same as above, Fig. 4 is
Figures a, b, c, and d are longitudinal cross-sectional views showing the order of assembly of the same filter body, in which 3 is a filter body, 5 is a container,
39 indicates a flange portion.

Claims (1)

[Scope of Claims] 1. In an oil purifier having an oil purification section in the upper part of the container and an oil storage part in the lower part, an opening is formed at the bottom of the oil purification part, and an upper part of a filter body provided with a filter material. A flange portion with a larger diameter than the above opening is provided on the periphery,
The filter body, which is inserted into the opening and whose flange part is placed on the periphery of the opening, is removable from the container, and a wire mesh-like filter is disposed above the filter body in the case. Characteristic oil purifier. 2. The oil purifier according to claim 1, wherein the opening provided in the oil purifying section is formed through a step into which a flange of the filter body is fitted. 3. The oil purifier according to claim 2, wherein the upper surface of the flange portion is substantially flush with the upper end of the stepped portion. 4. Claim 1, characterized in that the filter body installed in the opening of the oil purifying section has a vertical dimension longer than the vertical dimension of the opening, and has a lower part protruding below the oil purifying section. The oil purifier mentioned.