EP3544718A1 - Removal tool for a filter insert of a liquid filter - Google Patents
Removal tool for a filter insert of a liquid filterInfo
- Publication number
- EP3544718A1 EP3544718A1 EP17791344.9A EP17791344A EP3544718A1 EP 3544718 A1 EP3544718 A1 EP 3544718A1 EP 17791344 A EP17791344 A EP 17791344A EP 3544718 A1 EP3544718 A1 EP 3544718A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- arm
- hook
- filter
- opening
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 238000003780 insertion Methods 0.000 claims description 51
- 230000037431 insertion Effects 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 description 10
- 239000012530 fluid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 210000003811 finger Anatomy 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000004932 little finger Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
- B25B27/0042—Tools for removing or replacing filters or for draining oil; Tools for setting or loosening closure means for radiators, batteries, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/24—Tools used for the removal of filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/29—Filter cartridge constructions
- B01D2201/291—End caps
- B01D2201/295—End caps with projections extending in a radial outward direction, e.g. for use as a guide, spacing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
- B01D2201/347—Radial sealings
Definitions
- the invention relates to a disassembly tool for a filter cartridge of a
- the invention further relates to a method for disassembling a filter insert of a liquid filter.
- Liquid filters are known from the prior art. Such liquid filters can be used, for example in the automotive sector, to purify fuel from particles and water. Other fluid filters are designed to purify urea solution, which is suitable for DENOX systems, ie
- a replaceable filter cartridge may be provided in the housing of the liquid filter.
- This filter insert may for example be formed of a filter element which is fastened between a first end cap and a second end cap.
- the first end cap may have a first opening and the second end cap may have a second opening.
- a so-called dismantling tool may be provided.
- Such disassembly tools can for example be attached to the replacement filter cartridge to remove the filter cartridge in use quickly, safely and without damage from the housing of the fluid filter.
- a disassembly tool may be integrally formed in the form of a flat oblong style (similar to an ice style) extending along a longitudinal axis. At a distal end, the disassembly tool may have one or two hooks. The disassembly tool can for the
- Dismantling process through the two openings of the first and second end cap of the filter insert are inserted through.
- the hooks of the disassembly tool lock behind an edge of the downstream end cap as seen along the insertion direction.
- downstream is to be understood merely to indicate a position with respect to a direction. If a pull is then exerted on the removal tool counter to the insertion direction, then the filter insert can be completely removed from the housing of the
- Liquid filter are pulled out.
- Disassembly tool behind the farthest with respect to the insertion of the opening of the farthest end cap of the filter cartridge ensures that the complete filter cartridge can be removed from the housing. If the disassembly tool were to engage only behind the front opening with respect to the insertion direction, then there would be a risk that the filter element, which can be saturated with liquid, would tear when the removal tool was removed and in this way a part of the filter insert would get stuck in the housing.
- the invention is based on the recognition that when using one-piece disassembly tools either a special geometry inside the
- Filter insert must be present to make insertion of the disassembly tool friction and damage.
- These design conditions mean that on the one hand for each filter element or each diameter of the openings a separate, specially designed for the filter cartridge, disassembly tool is necessary.
- the insertion process can be easily carried out until the disassembly tool engages on the filter insert - but at the same time this increases the risk that the disassembly tool is insufficient in its stability when the filter insert is pulled out or removed, to move the filter cartridge out of the housing. This may for example be the case when the
- Filter insert is particularly tight. In such a case, it may happen that the disassembly tool is deformed due to its elasticity and not sufficiently stable to move the filter cartridge out of the housing. Thus, several attempts may be necessary to complete the disassembly of the filter cartridge from the housing. This also increases the risk of damaging the filter element during re-insertion of the removal tool, which in turn causes the
- the disassembly tool should be designed such that the risk of damage to the filter element of the filter insert during insertion of the
- Disassembly tool through the filter insert is as low as possible.
- disassembly tool should be designed so that even with larger tolerances of the opening diameter as a result of manufacturing processes a safe passage through the opening of the end cap through without major
- a disassembly tool for a filter cartridge of a fluid filter includes a first arm extending along a first axis and a second arm extending along a second axis.
- the first arm has a first hook, which protrudes substantially transversely or perpendicular to the first axis of the first arm.
- the second arm has a second hook that protrudes from the second arm substantially transverse to the second axis.
- the first arm and the second arm are connected to each other by a hinge.
- substantially transversely is understood to mean a direction perpendicular to the first axis, wherein the direction can deviate by up to 20 ° from the vertical.
- the dismantling tool is designed in the manner of a pair of scissors. In this way it is easily and reliably possible to vary the distance of the first hook from the second hook. So can when inserting the
- the distance of the first hook from the second hook are chosen small. After completion of the insertion process, ie when the two hooks behind the rear opening viewed along the insertion direction, the distance between the two hooks can be increased by a rotation of the first arm relative to the second arm about the pivot so that the two hooks can engage behind an edge of the opening.
- the two hooks are suitable for engaging behind the edge of an opening of one of the end caps, in particular the opening of the filter insert located downstream with respect to the insertion direction or insertion direction.
- Downstream or upstream is to be understood in the context of this application, only a relative position with respect to a defined direction. It is not a flow direction of a liquid, unless explicitly stated.
- the proposed disassembly tool can be advantageously manufactured easily and inexpensively. It is due to the variable distance of the two hooks from each other advantageous for use for disassembly or
- the disassembly tool can nevertheless be easily and simply, i. without much effort, are inserted through the filter insert and are adjusted in the inserted state such that the two hooks are reliably and safely located behind the edge of the opening and a safe extraction and safe disassembly of the filter cartridge is made possible from the housing of the liquid filter ,
- the disassembly tool or the first arm and the second arm can be formed dimensionally stable.
- Elasticity of the material or the shape of the dismantling tool is not required. Because the distance between the hooks can be set for the insertion process or the insertion process so that the hooks can be easily inserted through the filter insert, in particular without mechanical contact with the interior of the filter element or the edge of one of the openings of the end caps.
- a dimensionally stable design of the two arms of the disassembly process is particularly simple and reliable: For a random Verwinden the disassembly tool even with larger necessary pull-out forces is not expected due to the dimensional stability. As a result, it is advantageously ensured that the filter insert can already be extracted or removed from the housing in a single piece from the housing without damage and reliably in the first attempt.
- a further embodiment provides that the rotary joint between a first operating end of the first arm and the first hook is arranged, and that the
- Swivel joint between a second operating end of the second arm and the second hook is arranged.
- This advantageously has the effect that the displacement of the two hooks from the side of the first operating end and the second operating end can be carried out easily and without great effort.
- the distance between the operating ends of the rotary joint results in a lever effect that allows the displacement of the two hooks from each other with little effort.
- the dismantling tool is adjustable by rotation of the arms relative to each other about the pivot in an insertion state and in a disassembled state different from the insertion state. In the insertion state, the first hook and the second hook are transverse to one
- the first hook and the second hook have a second distance from one another transverse to the bisecting line.
- the first distance is less than the second distance.
- the first distance is at most 70%, advantageously at most 60%, and most preferably at most 50% of the second distance.
- the first distance and the second distance become free, for example, from the free end of the first hook
- the first distance is less than a first diameter of the first opening of the first end cap of the filter cartridge. It may further be provided, for example, that the second distance is greater than the first diameter of the first opening of the first end cap of the first
- the first end cap is with respect to the insertion or insertion of the
- first hook and the second hook point away from one another. It may also be provided that, in the insertion state, the first hook and the second hook point away from one another.
- pointing outwards should be understood to mean a direction which is directed away from the body of the respective arm or points away from an angle bisector between the two arms.
- first hook is arranged on a first operating end opposite the first hook end of the first arm.
- second hook is arranged on a second operating end opposite the second hook end of the second arm.
- Such an arrangement of the first hook and / or the second hook can advantageously a particularly large adjustment of the distance between the two hooks can be achieved.
- the first hook end and the second hook end form the distal ends of the respective arm.
- first arm and the second arm are identical. In this way, the disassembly tool especially
- Disassembly tool can be produced in an injection molding process.
- the identical construction of the first arm and the second arm for example, can be effected that only a single injection mold is necessary.
- the first arm and the second arm may be assembled such that the second arm is rotated 180 ° about the second axis with respect to the second axis with the first arm (much like two hands are placed on top of each other when the thumbs and little finger of the two hands
- the rotary joint to a separate component present and later to be mounted axis of rotation is rotated.
- the axis of rotation of the rotary joint is formed respectively on the first arm and on the second arm, as well as an opening corresponding to the axis of rotation.
- the pivot joint is formed by a first pin formed on the first arm, which protrudes transversely to the direction or extension direction of the first hook and transversely to the first axis from the first arm and engages in a corresponding second pivot joint opening in the second arm
- the rotary joint is formed by a second pin formed on the second arm, which projects transversely to the direction or extent direction of the second hook and transversely to the second axis from the second arm and into a corresponding first pivot opening in the first Arm engages.
- disassembly tool is formed integrally with the hinge. In this way, the disassembly tool can be produced particularly easily and inexpensively.
- the assembly of the two arms for disassembly tool is thereby significantly simplified if no separate axle element must be provided, which then connects the two arms.
- the first operating end of the first arm has a channel-like first operating opening.
- the second operating end of the second arm has a channel-like second operating opening.
- a first mark and the second operating end are mounted such that upon rotation of the first arm relative to the second arm about the pivot around the two markers then overlapped or aligned when the insertion state of the dismounting tool is set. In this way is advantageous to the
- the two hooks are only a small distance from each other and in this way an insertion of the removal tool in the filter insert is possible without damaging the filter element or the filter element during insertion.
- This allows a damage-free disassembly of the filter cartridge even under poor visibility conditions.
- the first mark and the second mark may be in the form of projections or notches so that a haptic examination of the state of the disassembly tool is possible, even if only insufficient visibility prevails.
- a first locking element is arranged at the first operating end and a second locking element is arranged at the second operating end.
- the two locking elements can be coupled to the respective other operating end in such a way that a rotation of the two arms about the rotary joint is prevented, at least in one direction of rotation.
- the two locking elements can prevent the rotation of the arms after setting the disassembly state.
- Disassembly of the filter insert can be ensured and slipping of the disassembly tool can be prevented during the disassembly process.
- first locking element protrudes transversely to the first axis of the first arm and is designed such that it can engage around the second operating end at least in sections.
- second locking element protrudes transversely to the second axis from the second arm and is designed such that it can embrace the first operating end at least in sections.
- the two arms may be formed as flat elements, that is, have a relatively long extension along the first and second axes, however, be relatively thin in the two other dimensions compared to the first extension.
- an aspect ratio may be given which is only 40: 5: 1 by way of example.
- the dismantling tool could initially have a relatively low connection stiffness across the smallest dimension.
- the material thickness is increased and thus the Dismantling tool is stabilized. In this way, on the one hand, a force can be exerted on the dismantling tool easier because a larger
- Disassembly tool when disassembling the filter insert by the higher connection stiffness advantageously prevented.
- a method for disassembling a filter insert by the higher connection stiffness advantageously prevented.
- the liquid filter comprises in the assembled state a housing and at least one liquid inlet and at least one liquid outlet. Furthermore, the liquid filter comprises a filter cartridge, e.g. is inserted in the housing.
- the filter cartridge includes a filter element extending along a longitudinal axis and first and second end caps.
- the filter element may for example be folded in a star shape or designed as a wound filter element. Other filter elements are possible.
- the filter element is disposed along the longitudinal axis between the first end cap and the second end cap.
- the first end cap has a first channel-like opening and the second end cap has a second channel-like opening.
- Filter insert may be formed, for example, a hollow cylinder.
- the procedure includes the following steps:
- a first step providing a disassembly tool according to the above description;
- the first hook and the second hook are at a first distance from each other across an angle bisector between the first axis and the second axis, the first distance being less than a first diameter of the first opening and a second diameter of the second one Opening;
- a third step inserting the dismantling tool into the filter insert along an insertion direction such that the two hooks of the
- Disassembly tool through the second opening and through the first opening are completely guided;
- Disassembly tool relative to each other around the pivot around, wherein in the disassembled state of the first hook and the second hook across the
- Angled bisectors have a second distance from each other, wherein the second distance is greater than the first diameter of the first opening of the first end cap of the filter cartridge. For example, in this way, the two hooks engage behind an edge of the first opening of the first end cap; a fifth step: displacement of the dismounting tool against the insertion direction, so that together with the disassembly tool of
- Filter insert is removed from the housing.
- the proposed method By the proposed method, a particularly simple insertion of the disassembly tool through the filter cartridge is made possible. Furthermore, the same disassembly tool can be used for different filter cartridges with different sized openings. Finally, the method offers the advantage that after passing the dismantling tool through the two openings, it can be ensured in a simple manner that the two hooks engage reliably and securely behind the edge of the first opening and in this way the filter insert reliably in a single piece or . "Entirely" from the housing of the liquid filter can be dismantled or extracted.
- Figs. la-le various representations of a disassembly tool and its
- Figs. 2a-2c schematic representations of an inventive
- 3a shows a plan view of an embodiment of a disassembly tool in
- FIG. 3b a side view of the dismounting tool from FIG. 3a in FIG
- FIG. 3c shows a plan view of the dismantling tool from FIG. 3a in FIG
- FIG. 4 a cross section of a filter cartridge with the inserted therein
- FIG. 5 shows a further cross section through the filter insert from FIG. 4;
- Fig. 6a a plan view of the first end cap of the filter cartridge of Fig. 4;
- FIG. 6b shows a plan view of the second end cap of the filter insert from FIG. 4.
- Figure la shows a disassembly tool 60 of the prior art.
- Disassembly tool 60 is integrally in the manner of an ice style or a spatula educated.
- the removal tool has a flat, elongated extension.
- At a front distal end 61 has the
- Disassembly tool 60 a first hook 63 and a second hook 64, which are formed in the manner of two forks.
- An analogous structure is also located at the second distal end 62 of the disassembly tool 60.
- Disassembly tool 60 has in this case in its central portion between the first end 61 and the second end 62 a recess, so that it is as elastic as possible and bendable.
- Figure lb shows the prior art disassembly tool 60 when inserted along a direction of insertion 80 into a filter cartridge 70.
- the filter cartridge 70 has a hollow cylindrical shape and extends along a longitudinal axis A.
- the filter cartridge 70 includes a first end cap 71 having a first opening 73 and a second end cap 72 having a second opening 74.
- a filter element 78 is fluid tightly secured between the two end caps 71, 72.
- the filter element 78 also has a hollow cylindrical shape, so that the disassembly tool 60 along the longitudinal axis A in the insertion direction 80 can first be inserted through the second opening 74, then the hollow interior of the filter element 78 can pass and finally through the first opening 73rd the first end cap 71 can be inserted therethrough.
- Disassembly tool larger than the diameter of the first opening 73 and the second opening 74.
- FIG. 1c shows an enlarged detail from FIG. 1b in a state in which the first hook 63 bears directly against the edge 75 of the first opening 73, just before the passage of the first opening 73 during the insertion process.
- the filter cartridge 70 further includes sealing means 79, for example in the form of O-rings, each disposed on a radially outer side of the first end cap 71 and the second end cap 72 and permitting sealing against a housing of a fluid filter.
- sealing means 79 for example in the form of O-rings, each disposed on a radially outer side of the first end cap 71 and the second end cap 72 and permitting sealing against a housing of a fluid filter.
- Figure ld shows a liquid filter 90 with a housing 93 and a Liquid inlet 91 and a liquid outlet 92.
- the filter insert 70 is mounted in the housing 93.
- the filter insert 70 is covered by a lid fluid-tight.
- the filter cartridge 70 is to be removed from the housing 93 by means of the prior art disassembly tool 60. Shown is the state in which the disassembly tool 60 is immediately prior to insertion into the filter insert 70 along the insertion direction 80.
- Disassembly tool 60 is inserted into the filter insert 70 such that the two hooks (not shown) the edge of the first opening (not shown) of the
- the liquid filter 90 may be, for example, a fuel filter, e.g. to trade for oil, diesel or gasoline. It is also possible that the liquid filter 90 is provided as a filter for filtering urea solution in a DENOX system. Other uses of the liquid filter are conceivable.
- FIG. 2a shows schematically a disassembly tool 1 of the invention and a filter cartridge 70.
- the same reference numerals represent the same functional elements.
- the first opening 73 of the first end cap 71 of the filter insert 70 has a first diameter D3.
- the second opening 74 of the second end cap 72 has a second diameter D4.
- the dismantling tool 1 is shown in the insertion state 50.
- Disassembly tool 1 has a first arm 10 which extends along a first axis AI. It also has a second arm 20 extending along a second axis A2.
- the first arm 10 has a first hook 11 which protrudes substantially transversely to the first axis AI, ie approximately perpendicular (+/- 20 ° relative to the vertical) of the first arm 10 and is adapted to the edge 75 of the first opening 73 of first end cap 71 of the filter insert 70 to engage behind.
- the second arm 20 has a second hook 21, which protrudes from the second arm 20 substantially transversely to the second axis A2 and is adapted to engage behind the edge 75 of the first opening 73 of the first end cap 71 of the filter insert 70.
- the first hook 11 is arranged on a first hook end 3 of the first arm 10, the second hook 21 on a second hook end 4 of the second arm 20. Both hook ends 3, 4 may, for example, the distal ends of the respective arm 10 Be 20.
- the first arm 10 and the second arm 20 are interconnected by a hinge 30.
- the pivot 30 is disposed between a first operating end 12 of the first arm 10 and the first hook 11.
- the hinge 30 is also disposed between a second operating end 22 of the second arm 20 and the second hook 21.
- the first operating end 12 has a channel-like first operating opening 15, through which, for example, a screwdriver or a finger of an operator or operator can be inserted.
- the second operating end 22 of the second arm 20 has a second channel-like operating opening 25, through which also a screwdriver or a finger can be inserted.
- the dismantling tool 1 is designed such that the two operating openings 15, 25 in a disassembled state ( Figure 2c) of the disassembly tool 1 are aligned.
- the first hook 11 and the second hook 21 have a first distance Dl from each other transversely to an angle bisector W between the first axis AI and the second axis A2.
- the first distance D1 is thereby measured from the outermost ends of the respective hook to the outermost end of the respective other hook.
- the two hooks 11, 21 in the insertion state 50 of the disassembly tool 1 facing outward, so starting from the respective arm 10, 20 away from the bisecting W.
- Figure 2b shows the disassembly tool 1 further in the insertion state 50, wherein the disassembly tool 1 now through the second opening 74 into the
- the first distance Dl is preferably also smaller than the diameter of the recess of the filter element 78, so that the insertion of the
- Disassembly tool 1 through the filter element 78 therethrough without damaging the Filter element 78 can take place. This may be particularly important because the filter element 78 may still be liquid-soaked in the disassembly process, whereby the intrinsic stability of the filter element 78 may be reduced.
- the filter element 78 may become a
- Figure 2c shows the disassembly tool 1 in the disassembled state 52.
- the disassembly tool 1 has now been passed through the first opening 73. Since the first distance Dl of the two hooks 11, 21 in the insertion state 50 is also smaller than the first diameter D3, the two hooks 11, 21 can also be passed through the first opening 73 without difficulty.
- the two operating ends 12, 22 are moved apart (see arrows) thereby the first arm 10 rotates relative to the second arm 20 around the pivot 30 and the two hooks 11, 21 are removed from each other.
- the two hooks 11, 21 engage behind the edge 75 of the first opening 73.
- the two hooks 11, 21 now have a second distance D2 in the disassembled state 52, which is greater than the first diameter D3 of the first opening 73.
- the disassembly tool 1 are displaced out of the housing 93 of the liquid filter 90 together with the complete filter insert 70 out.
- the proposed dismantling tool 1 has the advantage that a
- Disassembly tool 1 through the two openings 73, 74 with little effort is possible. It can be adjusted in a simple manner the disassembly state 52, in which a reliable disassembly of the filter insert 70 by means of the disassembly tool 1 can be effected, since the two hooks 11, 21 the edge 75 of the first opening 73 safe, wide-area and reliable engage behind.
- Figure 3a shows an embodiment of the disassembly tool 1.
- the first arm 10 and the second arm 20 are designed as identical parts, in which, for example, the first arm 10 is rotated relative to the second arm 20 by 180 ° about the first axis AI, so that the first hook 11 points in a direction opposite to that of the second hook 21.
- the dismantling tool 1 is in Disassembly state 52 shown.
- the channel-like first operating opening 15 and the channel-like second operating opening 25 of the two arms 10, 20 are aligned with one another.
- a tool such as a screwdriver or the like, are inserted through the aligned control openings 15, 25, thereby a force on the
- Disassembly tool 1 to simplify.
- a knob-like first mark 5 can be seen, which protrudes slightly raised above the outer edge of the first operating end 12.
- a similar second mark 6 is disposed on the second arm 10 at the second operating end 22. In the drawing, it is hidden by the first arm 10.
- the first arm 10 and the second arm 20 each have an outer edge 17, which is raised in relation to the flat interior.
- an increased rigidity of the arms is achieved with low weight.
- each arm 10, 20 on the one hand very easily and at the same time is particularly connection stiff, causing a random or unwanted slippage during
- Figure 3b shows the disassembly tool 1 of Figure 3a in the disassembled state in a side view.
- the first arm 10 is shown in the figure above and the second arm 20 in the figure below.
- Swivel joint 30 protrudes transversely to the first axis AI from the first arm 10, a first pin thirteenth down in the picture. Offset from the first pin 13 in the direction of the first operating end 12, a first rotary joint opening 14 is arranged adjacent to the first pin 13. This is, as can be seen in Figure 3a, arranged in a semicircle around the first pin 13 around. Since the second arm 20 is identical to the first arm 10 protrudes from the second arm 20, a second pin 23 in the direction of the first arm 10 from.
- a second pivot aperture 24 is not directly visible in the illustrated view (dashed line, since it lies behind the plane of the drawing).
- the two pins 13, 14 are inserted into the respective corresponding pivot openings 14, 24 of the respective opposite arm 10, 20, so that the hinge 30 is formed. It is advantageous that for the formation of the hinge 30 no separate, individually present component such as a rotation axis, must be provided, which would be easily lost during assembly. Rather, the disassembly tool 1 can be composed of identical arms 10, 20 in a simple manner or put together.
- the first locking element 18 has a recess 18a, in which the second operating end 22 of the second arm can be accommodated at least in sections.
- Edge recess 19 is configured such that a second locking element 28 of the second arm 20, the first arm 10 in the portion of this first edge recess 19 can engage around or can overlap.
- An analog second edge recess 29 is provided on the second arm 20. This can then be overlapped or encompassed by the first locking element 18.
- Disassembly tool 1 when reaching the dismantling state the two
- Locking elements 18, 28 are coupled to the opposite arm 10, 20, that a further rotation of the two arms 10, 20 of the disassembly tool 1 is no longer possible. It may also be provided that in
- Disassembly state 52 the first locking element 18 is locked to the second edge recess 29, for example by a latch, so that a rotational movement in both
- the second locking element 28 may, for example, analog lock with the first arm 10.
- FIG. 3c shows the dismantling tool from FIG. 3a in the same plan view as in FIG. 3a, but in the disassembled state in this figure, the first edge recess 19 becomes particularly visible.
- the second edge recess 29 is located on the non-visible side of the second arm 20. Because of the identical construction of the arms 10, 20, however, the second edge recess 29 corresponds to the first edge recess 19th
- FIG. 4 shows the dismantling tool 1 in the disassembled state 52
- Disassembly tool 1 is complete by a filter insert 70
- FIG. 5 shows the dismounting tool 1 in the filter insert 70 in the disassembled state 52 in a sectional view rotated by 90 ° with respect to FIG.
- the reinforcing ribs 16 can be seen particularly well, through which the
- Torsional rigidity of the dismantling tool 1 is improved. An accidental slipping by a distortion of the dismantling tool 1 or one of its arms 10, 20 is thereby counteracted advantageous.
- FIG. 6 a shows a plan view of the first end cap 71 of the filter insert 70. It can be seen the two hooks 11, 21 of the dismantling tool 1, which engage over the edge 75 of the first opening 73 in the disassembled state 52.
- FIG. 6b shows a plan view of the second end cap 72 of the filter insert 70 with the dismantling tool 1 inserted in the disassembled state 52. It can be seen that that the first mark 5 and the second mark 6 are not aligned in the disassembled state 52.
- the second locking element 28 engages over the first edge recess 19 of the first arm 10 with a second recess 28a in the second control end 22.
- the direction of the Viewed axis of rotation 30, ie transverse to the longitudinal axis A a greater material thickness of the
- Dismantling tool 1 This increases the torsional rigidity. At the same time by coupling the two operating ends 12, 22 a random or
- the presented dismantling tool 1 is suitable for the dismantling of
- Filter cartridges 70 of liquid filters 90 for example, for fuel filter or urea filter. It is universal because of its properties, i. For various types of filter cartridges 70, usable, easy to manufacture, inexpensive, and allows the reliable disassembly of the filter cartridges 70 from a housing 93 of an associated liquid filter 90th
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016223456.0A DE102016223456B4 (en) | 2016-11-25 | 2016-11-25 | Disassembly tool for a filter insert of a liquid filter |
PCT/EP2017/077216 WO2018095677A1 (en) | 2016-11-25 | 2017-10-25 | Removal tool for a filter insert of a liquid filter |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3544718A1 true EP3544718A1 (en) | 2019-10-02 |
Family
ID=60190833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17791344.9A Withdrawn EP3544718A1 (en) | 2016-11-25 | 2017-10-25 | Removal tool for a filter insert of a liquid filter |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3544718A1 (en) |
CN (1) | CN110191748A (en) |
DE (1) | DE102016223456B4 (en) |
WO (1) | WO2018095677A1 (en) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4510256Y1 (en) * | 1966-05-04 | 1970-05-12 | ||
US3912631A (en) * | 1972-06-09 | 1975-10-14 | William C Turman | Oil filter and adapter |
JPS5043480U (en) * | 1973-08-21 | 1975-05-01 | ||
DE4415890A1 (en) * | 1994-05-05 | 1995-11-09 | Knecht Filterwerke Gmbh | Removing a filter element from a housing |
DE29516238U1 (en) * | 1994-11-24 | 1995-12-07 | Mapal Fabrik für Präzisionswerkzeuge Dr. Kress KG, 73431 Aalen | Tool |
JP4261015B2 (en) * | 2000-03-17 | 2009-04-30 | 株式会社Ihi | Bag filter filter cloth changer |
EP2340883B1 (en) * | 2005-11-15 | 2018-01-10 | Donaldson Company, Inc. | Liquid filter arrangement |
DE102007006772A1 (en) * | 2007-02-12 | 2008-08-14 | Robert Bosch Gmbh | Filter and filter arrangement |
CN101396190A (en) * | 2007-09-29 | 2009-04-01 | R·欣卡有限责任公司 | Combination grasping device and walking stick with detachable base |
USD596910S1 (en) * | 2008-10-06 | 2009-07-28 | Lisle Corporation | Relay puller pliers |
US9011782B2 (en) * | 2012-08-09 | 2015-04-21 | Caterpillar Inc. | After-treatment system |
CN203732821U (en) * | 2014-03-08 | 2014-07-23 | 厦门奇实实业有限公司 | Temple structure |
DE102015207565B4 (en) | 2015-04-24 | 2020-06-18 | Robert Bosch Gmbh | Filter element, liquid filter and arrangement |
CN205290814U (en) * | 2015-11-30 | 2016-06-08 | 潍柴动力股份有限公司 | Device is changed to urea pump filter core |
-
2016
- 2016-11-25 DE DE102016223456.0A patent/DE102016223456B4/en not_active Expired - Fee Related
-
2017
- 2017-10-25 WO PCT/EP2017/077216 patent/WO2018095677A1/en unknown
- 2017-10-25 EP EP17791344.9A patent/EP3544718A1/en not_active Withdrawn
- 2017-10-25 CN CN201780084565.4A patent/CN110191748A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2018095677A1 (en) | 2018-05-31 |
DE102016223456B4 (en) | 2018-11-08 |
CN110191748A (en) | 2019-08-30 |
DE102016223456A1 (en) | 2018-05-30 |
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