• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to the use of a filter (1) mounted under the floor grate to hold the scraper so that the horizontal distance (T) of the horizontal (T1) passing through the filter ring (14) of the filter and the bottom (12a) of the free-hanging filter network (12) is at most same as the distance (F) of the lowest point of the bottom of the floor drain from said horizontal plane (T) passing through the filter ring (14). The invention also relates to a method for manufacturing a filter (1), which can be mounted under a floor grate to hold down the scrap and a combination of a filter (1) installed under the floor grate and the bottom of the floor drain.
    公开号:FI20185876A1
    申请号:FI20185876
    申请日:2018-10-17
    公开日:2019-04-18
    发明作者:Rami Peltosaari；Jukka Heiska
    申请人:Sinituote Oy；
    IPC主号:
    专利说明:

    The invention relates to the use of a filter according to the preamble of claim 1, 2 or 7, mounted under a floor grille to hold loose debris.
    The invention further relates to a method according to the preamble of claim 13 or 16 for the manufacture of a filter which can be mounted underneath a floor rake to hold loose debris.
    The invention further relates to a combination of a filter mounted under a floor runner and a floor pit according to the preamble of claim 17 or 18.
    Particularly in wet rooms, such as washrooms, filters for the removal of loose debris or the like are used, one of the most commonly used ones being a plastic filter ring fitted with a debris retaining filter. The filter is placed under the floor drain cover of the washroom, at the outlet of the drain.
    Existing filters have a loose filter mesh, meaning they have to be kept relatively loose in a "bag" to function as desired in collecting loose debris and keeping the floor drain clean. In order to attach the filter mesh to the filter ring so that the filter mesh forms a baggy space below the filter ring when the filter is mounted at the drain opening, the mesh must be connected to the filter ring at the edges of the circular filter mesh. Naturally, the area of the filter net must be larger than the area of the circle defined by the filter ring.
    Such a filter further requires the formation of a filter bag having a relatively large mesh size from the filter mesh, since the mesh filter mesh is more easily clogged. The filter bag will generally have to be made so large that it extends to the bottom of the floor drain, which will easily interfere with the flow of water through the bag, which may cause premature filling of the bag with the hair.
    The above prior art as a starting point for the main object of the invention was to provide a floor-mounted filter with a lower risk of clogging and
    20185876 prh 17-10-2018 where the filter bag can be kept so low that it does not reach the bottom of the floor drain.
    The use of a filter according to claim 1,2 or 7 mounted under a floor grate and a combination of a floor grate and floor pan according to claim 13 or 16 achieve the above objectives.
    More particularly, the first embodiment of the invention relates to the use of a filter mounted under a floor grille to retain loose debris. In this case, the filter comprises a filter ring to which a filter screen is attached. Most of the bottom openings of the filter screen are round and 1-3 mm in diameter. At least 60% of the horizontal distance between the horizontal through the tin ring and the horizontal through the free filter net is equal to at least 60% of the horizontal distance from the bottom of the floor well from said horizontal through the filter ring to the free mesh portion of the filter.
    Another embodiment of the invention also relates to the use of a filter mounted under a floor grate to retain loose debris. In this case, most of the bottom openings of the filter net are circular, but the filter comprises a filter ring attached to a filter net supported by a flexible filter support, and the bottom openings of the filter net are 1-3 mm in diameter. The perpendicular distance between the horizontal 20 passing through the filter ring and the horizontal through the bottom of the free filter net is at most equal to the distance of the bottom of the floor drain from said horizontal through the filter ring. At least 60% of the filter-dependent portion of the filter mesh is substantially the same distance from the horizontal plane passing through the filter ring.
    A third embodiment of the filter comprises the use of a filter mounted under a floor grille to retain loose debris. In the third embodiment of the invention, however, the filter comprises a one-piece filter ring filter mesh assembly, wherein the filter ring and the filter mesh are rigid and the bottom portions of the filter mesh are substantially circular. In this third embodiment of the kek30 invention, the perpendicular distance between the horizontal through the filter ring and the horizontal through the bottom of the filter net is at most equal to at least 60% of said horizontal well through the filter ring and at least 60% of the filter net.
    20185876 prh 17-10-2018
    The invention further relates to a combination of a filter mounted under a floor grate and a floor drain bottom. The filter comprises a filter ring to which is attached a filter mesh, the major part of which is circular at the bottom openings of the filter mesh. In a preferred embodiment of the invention:
    - the mesh apertures of the filter screen are 1 to 3 mm in diameter,
    - the vertical distance between the horizontal through the filter ring and the horizontal through the bottom of the bottom of the free hanging filter net is not more than the distance of the bottom of the floor well from said horizontal through the filter ring, and
    - at least 60% of the free-hanging portion of the filter net is substantially the same distance from the horizontal plane passing through the filter ring.
    The invention also relates to a combination of a filter mounted below a floor grate and a bottom of a floor drain having a circular portion of the bottom openings of the filter net comprising a filter ring attached to a filter net 15 supported by a flexible filter support and In this embodiment of the invention
    - the vertical distance between the horizontal through the filter ring and the horizontal through the lowest point of the bottom of the filter net is at most equal to the distance of the bottom of the floor drain from said horizontal through the filter ring,
    - at least 60% of the free mesh portion of the filter is substantially equal to the horizontal plane (T) passing through the filter ring.
    The invention further relates to a combination of a filter mounted under a floor grate and a floor drain bottom. In it, the filter comprises a one-piece filter-ring-filter-mesh combination, in which the filter ring and the filter-net are each rigid and in which the majority of the bottom openings of the filter-net are circular.
    20185876 prh 17-10-2018
    Here
    - the vertical distance between the horizontal plane passing through the filter ring and the horizontal plane passing through the bottom of the filter net is at most equal to the distance of the bottom of the floor drain from said horizontal plane passing through the filter ring;
    - at least 60% of the filter net of the filter is substantially the same distance from the horizontal through the filter ring, and
    the filter ring and the filter mesh are rigid and the filter is preferably made by injection molding.
    The present invention is based on the surprising observation made by the Applicant in Finnish Patent Application 20175910 that by arranging the filter mesh filter so tight that the bag formed by the filter mesh remains flat, low and about the same distance from the plane of the filter ring, wherein it is capable of effectively detaining loose debris without the risk of the filter screen becoming clogged. In Fl
    20175910 focuses on floor mine filters made by ultrasonic welding, but it is clear that the observation it makes is completely independent of the floor mine filter manufacturing method. Thus, in the present application, the above inventive idea of forming a filter bag 20 into a flat, dense mesh has been extended to include floor drain filters manufactured by various manufacturing methods, which also have the above bag shape and structure.
    The above phenomenon seems to be due to the fact that as the bag formed by the filter net is increased in size, i.e. the bag is made "" looser ", a deep, sharp bag is formed in the middle of the filter net 25. A sharp mesh bag often traps the bottom of a floor drain and weakens the flow of water through the mesh, as well as debris that easily increases the risk of clogging.
    Instead, in the invention, the filter mesh of the filter is kept so flat and tight that the above formation of a sharp mesh is prevented, so that no accumulation of material preventing the flow of water from occurring in the pouch occurs. Thus, the filter according to the invention has been combined with a small mesh size and a smaller tendency for the filter screen to clog.
    20185876 prh 17-10-2018
    The invention achieves the remarkable additional advantage that by using a dense mesh filter net, the floor drain in fact stays cleaner longer than a corresponding larger mesh filter, although the smaller mesh filter also has a smaller mesh filter area, which should
    The filter to be manufactured then has a ratio (A / mm 2 ) of the area of the filter screen to the distance (Emax / cm 2 ) of the outermost (lowest) portion of the filter screen from 40 to 60 with a diameter of 1 to 3 mm. At the same time, the ratio of the area of the filter net (A) to the area of the circle defined by the inner diameter of the 10 filter rings (the so-called minimum mesh with the same diameter as the filter ring, about 165 mm 2 when inside diameter = 130 mm) is 1.4 -1.6. In this case, the outer diameter of the filter ring is preferably 120-160 mm. Preferably, the filter ring has an inner diameter of 130 mm and an outer diameter of 145 mm.
    By way of comparison, a similar type of product presently on the market has an average mesh size of 6-8 mm filter mesh with the same physical dimensions of the filter ring having an inner diameter of 130 mm and an outer diameter of 145 mm. Such a loose filter mesh having an effective mesh size of the mesh of 1.7 or more relative to the minimum mesh surface will readily result in a sharp mesh bag extending downward from the plane of the filter ring to more than 50 mm, often 65 to 70 mm. The filter ring is placed immediately below the floor grille. Because the bottom of commonly used floor drains is only about 25-50 mm from the floor grate, the filter mesh of such a filter readily extends to the bottom of the floor well, causing interference with the uniform filling of the filter mesh and water passage through the mesh mesh.
    Preferably, the invention relates to a filter wherein the ratio of the area (A / mm 2 ) of the filter screen to the distance (Emax / cm) of the outermost / lowest portion of the filter screen from the plane passing through the filter ring. In this case, the ratio of the area A of the filter net to the inner diameter of the minimum circle defined by the inner diameter of the filter ring passing through the centerline of the filter ring is between 1.1 and 1.6, preferably when the filter ring inner diameter D is 120-160 mm.
    In one preferred embodiment of the invention, the filter 1 has a flat shape, with a flatness factor B> 3.0, where B = D2 / E, where D2
    20185876 prh 17-10-2018 The diameter (mm) of the horizontal plane T and E passing through the filter ring is the distance (mm) between the horizontal plane T) passing through the filter ring and the horizontal T1 passing through the bottom of the freely hanging filter net 12.
    Preferably, the filter has a smoothness factor B of 3.0 to 4. Thus, for example, the filter ring D has an inside diameter of 130 mm and the mesh extends about 40 mm from the filter ring plane T. The outside diameter of the filter In this case, however, the filter screen has a surface area of about 180 mm 2 . The diameter of the circle defined by the inner diameter D of the filter net is about 165 mm 2 . Preferably, the area of the filter screen 12 of the filter is between 170 and 200 mm 2 , preferably about 180 mm 2 .
    In this context, it should be noted that the equivalent filter on the market has a flatness factor B <2.5 and a filter screen area of about 225-230 mm, with a ratio of 15 filter screens to minimum screen area (at D = 130 mm) of 1.7 -2.0.
    The invention will now be described in more detail with reference to the accompanying drawings.
    Figures 1A-1C schematically show a filter according to a first embodiment of the invention.
    Fig. 1A shows a top view of a filter.
    Figure 1B shows a side view of the filter with the filter installed in a floor drain.
    Figure 1B further shows a side view of a filter with the filter installed in a floor drain. In addition, the figure schematically shows the details of a floor drain.
    Figure 2A is a side elevational view of a filter according to another embodiment of the invention.
    Fig. 2B is a side elevational view of a filter according to another embodiment of the invention in connection with a floor drain.
    20185876 prh 17-10-2018
    Figure 3A is a top plan view of a filter according to a third embodiment of the invention.
    Figure 3B is a side view, schematically illustrated, of a filter according to a third embodiment of the invention in connection with a floor drain.
    Figures 4A and 5A-5C show schematically the production of a filter according to the invention from a continuous filter network.
    Figures 4B and 6A-6C show schematically the production of a filter according to the invention from a pre-cut filter mesh.
    In the following, the structural details of the filters 10 according to the invention and the installation of the filters in a floor drain will first be briefly discussed with reference to Figures 1-3.
    Figures 1A-1C show a first embodiment of a filter according to the invention. As shown in Figure 1A, the filter 1 comprises a filter screen 12 attached to a filter ring 14. The bottom openings 13a of the filter screen have a diameter of 1-3 mm. The filter net 12 of the filter 1 shown in Fig. 1A extends to the outer edge of the filter 15 ring 14 with an outer diameter 145 mm and an inner diameter D = 130 mm. The total area of the filter screen 12 is about 180 mm 2 , and the effective area is slightly smaller
    The effective surface area of the filter screen 12 denotes the area of the filter screen 12 remaining inside the inner circumference of the filter ring 12 having an inner diameter D (130 mm).
    The filter 1 can be made in different ways, these manufacturing methods are shown in Figures 4A, 5A-5C and 4B, 6A-6C. Such a filter screen having a surface area of 180 mm 2 has an outside diameter of about 145 mm. When such a filter mesh is mounted on a filter ring 14 having an inner diameter D of 130 mm, the filter mesh 12 remains tight. As shown in Fig. 1B, where the filter is mounted in a floor drain 2, the bottom 12a of the filter net is approximately flat and has no downward pointed mesh bag. At least 60%, preferably about 70% of the filter net is at the same distance E from the horizontal plane T passing through the filter ring 14. The remainder of the filter net 12 consist of upwardly facing walls 12a of the bottom of the filter net 12.
    The filter net 12 attached to the filter ring 14 is relatively flat. The filter E 12 has a maximum depth of E of about 40 mm and its filter screen surface
    20185876 prh 17-10-2018 the area A is about 180 mm 2 . The depth E of the filter net 12 is measured as the distance from the plane of the upper edge of the filter ring 14 to which the filter net 12 attaches. The ratio of the surface area (A) of the filter filter net to the area of the circle defined by the inner ring D of the filter ring 1 is then 1.4 to 1.6.
    The filter of Fig. 1A may be used as shown in Figs. 1B and 1C installed under a floor excavator grid 2C to retain loose debris. The filter 1 is installed immediately below the floor drain grid 2C and can be installed either at the mouth of the floor drain 2 itself or attached to the floor grater. At the opening of the floor drain 2, the filter 1 can be fitted with separate clamping sleeves (not shown in the figures) such that the plane T passing through the upper surface of the filter ring 14 runs horizontally. Figure 1C also shows a drainage space 6 in which a floor drain 2 schematically shown is installed.
    The distance E of the bottom 12a of the filter 1 from the horizontal plane T passing through the upper surface of the filter ring 14 is approximately 40 mm (Figures 1B and 1C), while the surface area A of the filter screen is 180 mm 2 . As shown in Figures 1B and 1C, the distance E of the filter base 12a 15 from the horizontal plane T passing through the top surface of the filter ring 14 is always less than the distance T of the bottom 2a of the floor drain 2 from said horizontal plane T passing through the upper edge.
    The filter 1 is mounted in a flat form with a flatness factor B of between 4.5 and 3.7, where B = D2 / E, where D2 is the effective diameter (mm) 20 of the filter screen 12 and E is the horizontal (T) through the filter ring 14 of the filter. ) and the horizontal distance T1 passing through the lowest point of the bottom 12a of the free filter net 12, e.g.
    Figures 3A-3B show a filter 1 according to another embodiment of the invention; Γ and its use. Filter 1; Γ the structure differs somewhat from the filter 1, filters 1 and 1 shown in Figures 25A-1C; Otherwise the use is largely similar. Figure 3A shows a filter 1; The filter mesh 12 is schematically shown, and a portion of the filter (at the filter filter supports 15) is omitted from the filter mesh 12 to keep the pattern clearer. However, the filter screen 12 comprises a filter base 12a and outer edges supported by a filter support 15 consisting of a plurality of pivotally supported flexible support members.
    The bottom portions of the filter mesh 12 of the embodiment of the present invention are also circular. 3A-3B is a filter 1; 1 'comprises an option
    20185876 prh 17-10-2018 of a filter ring 14 to which a filter net 12 supported by a flexible filter support 15 is attached. Each support portion 15a "is connected at its upper and lower ends to two adjacent support portions 15a 'and 15a'".
    The filter screen 12 is coupled to these support members 15a such that the outer edge 12b of the filter network 12 engages a support link 15d at the outer end of each support member 15a. Here, the outer end of the support member 15, as viewed from the middle of the filter net 12, refers to the distal end of the support member.
    The support members 15 are flexible in the radial direction of the filter network 12 in the direction of the central part of the filter network, whereby the radius of the filter network 12 may vary slightly in different parts of the filter network. Figure 3A is a circle 12b 'corresponding to a filter mesh which is completely circular. As shown in Figure 3A, a filter 1 with a filter support 15; The filter screen 12 of the 1 'may differ slightly in shape from the round annular shape due to the elasticity of the support members 15. This provides considerable manufacturing advantage (cf. Fig. 4B) as well as flexibility in installing the filter 1 in a floor drain.
    The use of a filter ring 14 for this filter 1; 1 'is optional and depends on the filter 1; 1 'to the floor drain outlet. Also in this embodiment of the invention, the bottom openings of the filter mesh have diameters of 1-3 mm.
    Filter 1 with filter ring 14 and filter support 15; 1 'is installed in the floor drain 2 in the same manner as the filter 1 shown in Figures 1A-1C; 1 ', the horizontal distance T passing through the filter ring 14 and the horizontal plane T1 passing through the bottom 12a of the free filter net 12 is again not more than the distance of the bottom 2a of the floor drain 2 from said horizontal T passing through the filter ring. 1a, at least 60%, preferably at least 70%, of the free-hanging portion of the filter screen 12 is substantially the same distance E from the horizontal plane T passing through the filter ring 14. The filter screen does not form a sharp bottom downward from plane 2a.
    The filter screen 12 also has an area of about 180 mm 2 in the embodiment of the invention shown in Fig. 3B and has an effective diameter D 2 of about 130 mm (= inner diameter D of the filter ring).
    20185876 prh 17-10-2018
    By effective surface area is meant that part of the filter net which is outside the filter ring 14, i.e. is available for the filtration event. The effective diameter D2 is the diameter of the circle which corresponds to the effective area of the filter screen.
    When such a filter mesh is mounted on a filter ring 14 having an inner diameter D of 130 and an outer diameter D1 of about 145 mm, the filter mesh 12 remains tight. As shown in Fig. 3B, where the filter is mounted in a floor drain 2, the bottom 12a of the filter net is substantially flat or up to 2-10, preferably 4-8 degrees downward from its center but under no circumstances forms a sharp downward net10 bags. The remainder of the filter screen 12 is formed by upwardly facing walls 12a of the filter screen 12. The filter net 12 attached to the filter ring 14 is relatively flat. The filter E 12 has a maximum depth E of about 40 mm and has a mesh area A of 180 mm 2 . The depth E of the filter net 12 is measured as the distance from the plane of the upper edge of the filter ring 14 to which the filter net 12 attaches.
    As stated above, the filter ring has an inner diameter D of about 130 mm and an outer diameter D1 of about 145 mm, however there is some variation here depending on the size of the opening of the floor drain 2 itself. By using a filter mesh with a filter support 15, the same filter mesh 10 can be mounted on filter rings 14 having slightly different halogen distributions. Since the size of the filter mesh can be resized due to the filter support 15, this provides an additional possibility Figure 3B.
    Figures 2A and 2B illustrate another filter 100 according to the invention. Figure 2B, in turn, illustrates the use of the filter 100 when mounted under a floor grate to hold loose debris.
    The filter 100 comprises a filter ring-to-filter mesh combination formed by a single piece, for example, by compression molding. The filter filter ring 14 and the filter mesh 120 are rigid and most of the bottom openings 130a of the bottom 120a of the filter mesh 120 are circular. As shown in Figure 2A and 2B, the main portion, i.e. about 60%, of the bottom 100a of the filter 30 100 is at the same horizontal level T1. The bottom 120a of the filter filter net is joined by the upwardly rising walls 120b of the filter net which engage with the horizontal filter ring 140.
    The perpendicular distance E of the horizontal T through the filter ring 140 and the horizontal T1 through the bottom 120a of the filter network 120 is at most equal to
    20185876 prh 17-10-2018 the base 2a of the floor drain 2 is at a distance of at least 60% from said horizontal plane T passing through filter ring 140 and from the filter net of the filter substantially at the same distance E from horizontal plane T passing through filter ring 30.
    Here, the filtering factor B of the filter 100 is about 1-2, where B = D2 / E, where D2 is the diameter of the rigid filter screen (mm) and E is the perpendicular distance mm between the horizontal plane T passing through the filter ring 140 and the bottom 120a of the filter network 120. .
    The ratio of the area A of the rigid filter screen 120 of the filter 100 to the area of the circle defined by the periphery of the filter ring 140 is 0.70 to 0.50.
    The entire bottom 120a of the filter net 12 is arranged at substantially the same distance from the horizontal plane T passing through the filter ring 140.
    The rigid filters 100 according to the invention, illustrated in Figures 2A and 2B, can be fabricated either by injection molding or 3D printing in one piece.
    If a filter is to be made by combining the filter ring and the filter mesh, this can be done from a continuous filter mesh as follows: a continuous filter mesh 10 is placed over the filter ring 14, a suitable shallow pouch is formed, a suitable mesh 12 is cut from the continuous mes filter ring 14. This method is illustrated in Figures 4A and 5A.
    The first step 100 of method 1000 involves applying a filter ring 14 to a machining support (cf. Fig. 5A). a second step of the method 200 comprises, in turn, the continuous filter network 10 to set the filter ring 14, viewed from the filter medium 25 on the outer side of the ring (cf. Figure 5B). This second method step 200 may also include providing a bag-like shape to a portion of the filter net 10 attached to or placed on the filter ring 14.
    the third step of the method 300 comprises a welding device welding head kon30 taktiin the introduction of the filter ring 14 and on the outer side of the filter ring 14 of the outer side 10 with the set of continuous filter screen.
    20185876 prh 17-10-2018
    The fourth step 400 of the process comprises welding a continuous filter screen 10 and a filter ring 14 immediately below it.
    The third step 300 and the fourth step 400 of the process can be replaced by attaching the filter screen 10 and the filter ring 14 in other ways, such as gluing 5 or mechanical fastening (e.g., knitting).
    In a sixth step of the method, a suitable filter mesh 12 is cut from a continuous filter mesh 10 into a portion of the shape of the filter ring 14.
    In a seventh step of method 700, the finished filter is removed from the mounting platform and stored. A new, integral part of the filter net 10 is brought onto the filter base 14 on the mounting base.
    The filters of the invention may also be made by placing a pre-cut filter mesh 11 on the filter ring 14 and attaching it to a filter ring 14 having an outer diameter D on the mounting base. This method 1100 is illustrated in Figures 4B and 6A-6C.
    The method 1100 using the pre-cut filter mesh 11 begins by placing the filter ring on the mounting pad (step 110). A pre-cut filter mesh 11 having a surface area A5 greater than the outer diameter D of the filter ring is introduced onto the filter ring 14 and the filter mesh is formed into a shallow filter bag (step 210). Preferably, a filter mesh 1 is used here; 1a, which is supported by the filter nozzle 20, whereby the filter screen is mounted more effectively on the filter ring. Thereafter, the resilient filter mesh provided with the filter support 15 is attached to the filter ring 14 (method step 310). The pre-cut filter screen 11 and filter ring 14 may be secured to one another by welding, gluing or mechanical fastening (e.g., knitting). Ready filter 1; The T is then transferred to storage (Step 410).
    Table 1 further compares the properties of a filter on the market with a filter 1 according to the invention.
    table 1
    test run
    Bag height 1 mm mm
    Area of the filter screen 227 mm 2 181 mm 2 Diameter of filter mesh openings 6-10 mm 1-3 mm Empty bag weight (g) 3.7 3.96 Clogged bag debris weight 2 1.76 2.38
    20185876 prh 17-10-2018 1 : Bag height means the distance between the horizontal through the lowest point of the filter screen and the horizontal through the filter ring.
    2 : average of experiments
    The filter rings 14 of each filter had an outside diameter of about 145 mm and si10 an electrical diameter D of about 130 mm. In the new filter, the area of the filter screen 12 is provided
    The ratio of A to the inside diameter of the filter ring (mm 2 / mm) was 1.4-1.6. If the filter 1 is kept so low, i.e., the ratio of the area A of the filter screen to the diameter of the filter ring is relatively small, the mesh size of the screen can be significantly reduced. As shown in Table 1, in the filter 1 produced by the method of the invention, the aperture size of the filter mesh 12 is extremely narrowed, 1-3 mm, without the filter mesh 12 being significantly clogged.
    In fact, the filter network of the filter 1 according to the invention clogs even more slowly than the filter network of the known filter with a larger aperture. This is because the filter screen in the invention does not form a sharp pouch at the bottom of the filter screen, but the entire bottom of the filter screen 12 is at substantially the same level. This prevents loose debris, such as hair, from gathering in one place at the bottom of the sharp screen of the filter screen. In addition, the bottom of the filter net does not come into contact with the bottom of the floor drain, so that the flow of water through the filter net is not disturbed.
    In the prior art filter, the filter mesh was much looser and had a ratio of the surface area of the mesh to the inner diameter of the filter ring (mm 2 / mm) of more than 1.7, allowing the bottom of the mesh to form a sharp pouch In addition, commercially available filters for the same purpose have had to keep the mesh size of the filter mesh relatively large (7-10 mm) to avoid clogging the filter 1 too quickly. However, in this case, the filter net remains so large that its retention capacity for loose debris (especially hair) is significantly reduced.
    20185876 prh 17-10-2018
    Reference parts list of main parts
    20185876 prh 17-10-2018 Ready filter
    10 continuous filter network11 pre-cut filter screen 5 12 ready filter filter network12a bottom of filter screen12b outer edge of the filter screen12b ' outer edge of filter net without filter support13 filter mesh opening 10 13a The bottom opening14 filter ring14a foot14b head14c outer edge (needed ) 15 14d interior of filter ring15 the filter support15a the support member15b unable to support15c lower support joint 20 15d outer support joint100 rigid filter120 (rigid) filter screen
    20185876 prh 17-10-2018
    120a bottom of filter screen120b filter screen wall (s)130 filter mesh opening130a The bottom opening 5 130b opening page140 filter ring2 floor drain2a base2b grid 10 6 drainage areaA area of the filter screenAt effective area of the filter screenA1 area defined by the filter ringB granularity factor (At / E) 15 D inside diameter of the filter ringD1 outer diameter of the filter ringD2 effective diameter of the filter screenE distance between filter ring and filter baseF the distance between the filter ring and the bottom of the floor drain 20 T horizontal plane passing through the filter ringT1 horizontal plane passing through the lowest point of the filter screenT2 a horizontal plane passing through the bottom of a floor drain
    权利要求:
    Claims (25)
    [1]
    The claims
    Use of a filter (1) mounted beneath a floor grate to hold loose debris, the filter (1) comprising a filter ring (14) having a filter net (12) attached thereto, the bottom portions (13a) of the filter net (12) being substantially circular;
    5, characterized in that the bottom openings (13a) are perpendicular to the horizontal (T) through the filter ring (14) and the horizontal (T1) through the bottom (12a) of the free hanging filter net (12) E) is at most equal to the distance (F) of the lowest point of the bottom of the floor well from said horizontal plane (T) through the filter ring (14) and at least 60% of the free filter portion of the filter net 10 is substantially the same distance (E) from the horizontal T).
    [2]
    Use of a filter (1; 1 ') mounted beneath a floor grate to hold loose debris having a circular portion of the bottom openings (12a) of the filter net (12), characterized in that the filter (1; Γ) comprises a filter ring (14)
    15 filter net supported by a flexible filter support (15) and having diameters of 1-3 mm in the bottom openings of the filter net, the horizontal plane (T) passing through the filter ring ring (14) and the horizontal plane passing through the bottom (12a) (T1) the perpendicular distance (E) is at most equal to the distance (F) of the floor drain bottom from said horizontal plane (T) passing through the filter ring (14) and at least 60% of the free filter portion of the filter is substantially equal (E) ) through the horizontal (T).
    [3]
    Use of a filter (1; Γ) according to claim 2, mounted under a floor rake grille to hold loose debris, characterized in that the filter (1; 1 ')
    The data support (15) consists of a plurality of support portions (15a) extending from the periphery of the filter network (12) toward the central region of the filter network (12).
    [4]
    Use of a filter (1; Γ) according to claim 2 or 3, mounted under a floor rake grille to hold loose debris, characterized in that the filter ring (14) is changeable in diameter so that
    The diameter of the filter net (12) attached to the data ring (14) automatically changes due to the flexible filter support (15).
    [5]
    Use of a filter (1) as defined in any one of the preceding claims, mounted below a floor rake, characterized in that the filter (1) is a
    20185876 prh 17-10-2018 flat, with a flatness factor B> 3 where B = D2 / E, where D2 is the effective diameter (mm) of the filter screen (12) and E is the horizontal (T) through the filter ring (14) and the distance (mm) of the horizontal plane (T1) passing through the bottom (12a) of the free filter screen (12).
    5
    [6]
    Use of the filter (1) according to claim 5, when mounted under a floor rake, characterized in that the filter has a flatness factor B of 3 to 4.5.
    [7]
    Use of a filter (1) according to any one of the preceding claims, mounted under a floor rake, characterized in that the ratio of the area (A) of the filter filter net to the circle defined by the inner ring (D) of the filter ring (1).
    The 10 areas are between 1.4 and 1.6.
    [8]
    Use of a filter (1) according to any one of the preceding claims, mounted under a floor rake grille, for retaining loose debris, characterized in that the effective filter surface area (At) of the filter filter network (12) is between 150 and 170 mm 2 .
    [9]
    9. Using a filter (100) mounted below the floor grille to hold the loose
    15 debris, the filter (100) comprising a one-piece filter ring filter mesh combination, wherein the filter ring (140) and the filter mesh (120) are rigid and wherein the major part of the bottom openings (13a) of the filter net (120) are circular ) towards the horizontal plane (T) and the horizontal plane (T1) passing through the bottom (120a) of the filter net (120), the direct distance (E) is not more than the distance of the bottom of the floor drain from said horizontal plane (T) through said filter ring is at least 60% of the horizontal distance (T) passing substantially at the same distance (E) through the filter ring (30).
    [10]
    Use of a filter (100) according to claim 9 below a floor grate
    25, characterized in that the filter (1) has a flatness factor 2> B> 1, where B = D / E, where A is the diameter of the stiff filter mesh (mm) and E is the horizontal (T) and filter mesh passing through the filter filter ring (30). (12) the perpendicular distance (mm) between the horizontal plane (T1) passing through the bottom (12a).
    [11]
    Use of a filter (100) according to claim 9 or 10 mounted under the floor drain 30, characterized in that the ratio of the area A of the filter filter net (100) to the area of the circle defined by the outer ring of the filter ring (140) is between 0.70-0. 50 and the diameter of the bottom openings of the filter mesh is 1-3 mm.
    20185876 prh 17-10-2018
    [12]
    Use of a filter (100) according to any one of the preceding claims 9 to 11, characterized in that the entire bottom (12a) is arranged substantially equal to the horizontal plane (T) passing through the filter ring (12) to fit the filter net (12).
    5
    [13]
    A method of making a filter (1) which can be mounted underneath a floor grate to hold loose debris, the filter (1) comprising a flexible filter support (15) to which a pre-cut filter mesh (11) can be attached is circular, with bottom openings of 1-3 mm in diameter, characterized in that
    10 - pre-cutting the filter net into a circular pre-cut filter net (11),
    - a flexible filter support (15) is attached to the outer edges (12b) of the filter net (11),
    - securing the pre-cut filter net (11) with the filter support (15) to the filter ring (14) to produce the filter (1) with the filter support (15).
    [14]
    Method according to Claim 13, characterized in that the pre-cut filter net (11) is attached to the filter ring (14) by welding, gluing or mechanical fastening.
    [15]
    Method according to claim 13 or 14, characterized in that the method further comprises forming a low bag from the filter net before or after its attachment to the filter ring.
    [16]
    A method of making a filter (100) which can be mounted under a floor grate to retain loose debris, which filter (100) comprises a one-piece filter ring-filter mesh combination, wherein the filter
    The ring (30) and the filter net (12) being rigid and having the bottom portions (13a) of the filter net (12) being substantially circular and having a horizontal (T) passing through the filter ring (30) and a bottom (120a) of the filter net (120) the vertical distance (E) of the transverse horizontal plane (T1) is at most equal to the distance of the bottom of the floor well from said horizontal plane passing through said filter ring (140) when the filter is mounted under the floor grate and at least 60% of the filter network (30), characterized in that the filter (10) is made by injection molding or 3D printing.
    20185876 prh 17-10-2018
    [17]
    A combination of a filter (1) mounted below a floor grate and a bottom of a floor drain, the filter (1) comprising a filter ring (14) having a filter net (12) attached thereto, the bottom portions (13a) of the filter screen (12) that
    5 - the bottom openings (13a) of the filter screen are 1-3 mm in diameter,
    - the perpendicular distance (E) between the horizontal plane (T) through the filter ring (30) and the bottom (12a) through the free hanging filter screen (12) is not greater than the distance (F) of the bottom (2a) of the floor drain (2) said horizontal plane (T) passing through said filter ring (30),
    At least 60% of the free mesh portion of the 10 mesh filter is at substantially the same distance (E) from the horizontal plane (T) through the filter ring (14).
    [18]
    18. A combination of a filter (1) installed under a floor grate and a bottom of a floor well, the main part of which is formed by the bottom openings (13a) of the filter net (12)
    15 round, characterized in that,
    - the filter comprises a filter ring (14) to which is attached a filter net supported by a flexible filter support (15) and the bottom openings of the filter net having diameters of 1-3 mm,
    - the perpendicular distance (E) between the horizontal plane (T) passing through the filter ring (14) and the horizontal plane (T1) passing through the free filter net (12) is not more than the distance of the bottom of the floor drain from said horizontal ring (30) (T)
    - at least 60% of the free mesh portion of the filter is substantially equal (E) from the horizontal through the filter ring (14),
    25 throne (T).
    [19]
    A combination of a filter (1) and a floor drain according to claim 17 or 18, characterized in that the filter support (15) of the filter (1) comprises a plurality of support portions (15a) extending from the periphery of the filter net (12) towards the center region.
    30
    [20]
    A combination of a filter (1) and a floor drain according to any one of claims 17 to 19, characterized in that the filter (1) is flat in shape, with a flatness factor B> 3.0, where B = D2 / E, where D2
    20185876 prh 17-10-2018 (12) is the effective diameter (mm) and E is the distance (mm) between the horizontal plane (T) through the filter ring (14) and the horizontal plane (T1) through the free hanging filter screen (12) .
    [21]
    A filter (1) and a floor drain according to any one of claims 17-20
    5 (2) bottom combination, characterized in that the filter has a flatness factor
    B is 3.0-4.
    [22]
    Combination of filter (1) and floor drain (2) according to one of Claims 16 to 21, characterized in that the ratio of the surface area of the filter net (12) of the filter (1) to the minimum circumference defined by the inner ring of the filter ring.
    The area of the 10 rings is 1.4-1.6.
    [23]
    Combination of filter (1) and bottom of floor drain (2) according to one of Claims 16 to 22, characterized in that the filter filter screen (12) has an area of 170-200 mm 2 , preferably about 180 mm 2 .
    [24]
    A combination of a filter (100) mounted under a floor runner and a bottom 15 of a floor drain (2) comprising a one-piece filter ring-filter mesh combination, wherein the filter ring (140) and the filter mesh (120) are of rigid structure and (120) the base apertures (130a) are substantially circular, characterized in that
    - the perpendicular distance (E) through the horizontal ring (T) through the filter ring (140) and through the bottom (120a) through the filter net (120) is at most equal to the distance of the bottom of the floor drain (2) through said filter ring from a horizontal plane (T)
    - the filter (100) is at least 60% of the filter mesh (120) at a substantially equal distance (E) from the horizontal plane (T) passing through the filter ring (30),
    [25]
    25 - The filter ring (140) and the filter screen (120) are rigid and the filter is made by molding or 3D printing.
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    同族专利:
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    FI20175910A1|2018-12-31|
    FI127714B|2018-12-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI20175910A|FI127714B|2017-10-17|2017-10-17|Method of mounting a plastic filter net on a plastic filter ring on a welding platform of a ultrasonic welding device, ultrasonic welding device, and filter produced by the method|
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