CA2059664A1 - Masking member - Google Patents
Masking memberInfo
- Publication number
- CA2059664A1 CA2059664A1 CA002059664A CA2059664A CA2059664A1 CA 2059664 A1 CA2059664 A1 CA 2059664A1 CA 002059664 A CA002059664 A CA 002059664A CA 2059664 A CA2059664 A CA 2059664A CA 2059664 A1 CA2059664 A1 CA 2059664A1
- Authority
- CA
- Canada
- Prior art keywords
- masking member
- masking
- place
- magnet
- attached
- 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.)
- Abandoned
Links
- 230000000873 masking effect Effects 0.000 title claims abstract description 157
- 238000000576 coating method Methods 0.000 description 24
- 239000010410 layer Substances 0.000 description 23
- 239000011248 coating agent Substances 0.000 description 22
- 239000004033 plastic Substances 0.000 description 16
- 229920003023 plastic Polymers 0.000 description 16
- 239000012790 adhesive layer Substances 0.000 description 13
- 239000000123 paper Substances 0.000 description 11
- 239000002390 adhesive tape Substances 0.000 description 10
- 230000005611 electricity Effects 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 238000004381 surface treatment Methods 0.000 description 6
- 239000000696 magnetic material Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000009500 colour coating Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
- B05B12/26—Masking elements, i.e. elements defining uncoated areas on an object to be coated for masking cavities
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
ABSTRACT
The object of the present invention is to provide a masking member which is easily attached and removed.
To attain said object, in the present invention, (a) magnet layer (s) is (are) formed on the masking member and said masking member is magnetically attracted by a magnet to attach/remove to/from a masking place.
The object of the present invention is to provide a masking member which is easily attached and removed.
To attain said object, in the present invention, (a) magnet layer (s) is (are) formed on the masking member and said masking member is magnetically attracted by a magnet to attach/remove to/from a masking place.
Description
A MASKING MEMBER
-FIELD OF THE INVENTION
The present invention relates to a masking member used to protect a part of the surface of an article from a surface treatment.
For instance, in a case where a two-color coating is effected on such as a car-body, bumper, and the like, a method wherein a paint having a color is coated on said car-body, bumper and the like which is partially covered with a masking member and then another paint having a different color is coated on said place which has been covered with said masking member, has arisen.
Hitherto, adhesive tape or paper has been used as said masking member used in said two-color coating.
Nevertheless, in the case of said adhesive tape, said adhesive tape should be repeatedly attached to cover a masking place having a large area and in the case of said paper, other adhesive tape should be used to attach said paper, and further, said adhesive tape and paper should be cut to fit the size and shape of the masking place and said adhesive tape and paper are apt to easily wrinkle and as a result, the workability to attach said adhesive tape and paper is very inferior. Further, since said adhesive tape and paper are thin and are buried in the coating film after coating, a problem occurs where said adhesive tape or paper is very difficu1t to remove from the masking place.
" :.
-FIELD OF THE INVENTION
The present invention relates to a masking member used to protect a part of the surface of an article from a surface treatment.
For instance, in a case where a two-color coating is effected on such as a car-body, bumper, and the like, a method wherein a paint having a color is coated on said car-body, bumper and the like which is partially covered with a masking member and then another paint having a different color is coated on said place which has been covered with said masking member, has arisen.
Hitherto, adhesive tape or paper has been used as said masking member used in said two-color coating.
Nevertheless, in the case of said adhesive tape, said adhesive tape should be repeatedly attached to cover a masking place having a large area and in the case of said paper, other adhesive tape should be used to attach said paper, and further, said adhesive tape and paper should be cut to fit the size and shape of the masking place and said adhesive tape and paper are apt to easily wrinkle and as a result, the workability to attach said adhesive tape and paper is very inferior. Further, since said adhesive tape and paper are thin and are buried in the coating film after coating, a problem occurs where said adhesive tape or paper is very difficu1t to remove from the masking place.
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2 ~
Further, for instance, in a case where a paint such as polyvinyl-chloride sol, tar-urethane and the like is coated on the underside of a car-body for vibration-sound-corrosion-proofing, said masking members may be attached to places where said coating should not be effected, for instance, holes such as bolt holes, cable holes t drainage holes, shaft holes and the like, places to which parts are attached such as brackets and the like on said underside of said car-body.
Hitherto, said adhesive tape or paper has also been used as the masking member in said coating process of the underside of a car-body, and the same problems as above mentioned have arisen.
DESCRIPTION OF THE PRIOR ART
To solve said prior problems, a masking member consisting of a plastic sheet mol.ded to correspond with the size and shape of the masking place and an adhesive layer has been provided for the coating of a car-body, bumper and the like (~or instanc~!, Jikkai Hei 2-12479).
Since said masking member is already molded to correspond with the size and shape of the masking place, said masking member can be attached to said place by said adhesive layer without cutting and since said masking member is rigid, said masking member may not wrinkle when said masking member is attached and as a result, the workability to attach said masking member may be much improved. Further, since said masking member is thick enough, said masking member may not be buried in the coating film and can be easily removed :
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2~9~
from the masking place.
Further, to solve said prior problems, a molded plastic foam and a vacuum formed plastic foam sheet has been provided as masking members for the coating of the underside of a car-body (For instance, Jikkai Sho 62-5852).
Said masking members may be molded in a panel shape, plug shape, clip shape, cap shape, and the like and said panel type masking member is attached to a flat masking place by an adhesive layer, said plug type masking member is attached in a hole, said clip type masking member is attached to a panel masking place by pinching, and said cap type masking member is attached on a projecting masking place.
Said masking members are also èasily attached to and removed from said masking places. Nevertheless, since said masking member consisting of a vacuum formed sheet and said panel type masking member are attached to said masking places by said adhesive layer, when said masking members are once attached to said masking member, it is difficult to move them to adjust the attaching position and to increase the attaching strength to prevent the moving or disconnecting of said masking members during the surface treatment, the bonding strength of said adhesive layer shoud be increased. ~evertheless, when the bonding strength of said adhesive layer is increased, and a large disconnecting force may be necessary when said masking members are removed and a problem that said adhesive layer transfers to the masking place may arise.
Especially, in a surface treatment applying high ~.
~ -
Further, for instance, in a case where a paint such as polyvinyl-chloride sol, tar-urethane and the like is coated on the underside of a car-body for vibration-sound-corrosion-proofing, said masking members may be attached to places where said coating should not be effected, for instance, holes such as bolt holes, cable holes t drainage holes, shaft holes and the like, places to which parts are attached such as brackets and the like on said underside of said car-body.
Hitherto, said adhesive tape or paper has also been used as the masking member in said coating process of the underside of a car-body, and the same problems as above mentioned have arisen.
DESCRIPTION OF THE PRIOR ART
To solve said prior problems, a masking member consisting of a plastic sheet mol.ded to correspond with the size and shape of the masking place and an adhesive layer has been provided for the coating of a car-body, bumper and the like (~or instanc~!, Jikkai Hei 2-12479).
Since said masking member is already molded to correspond with the size and shape of the masking place, said masking member can be attached to said place by said adhesive layer without cutting and since said masking member is rigid, said masking member may not wrinkle when said masking member is attached and as a result, the workability to attach said masking member may be much improved. Further, since said masking member is thick enough, said masking member may not be buried in the coating film and can be easily removed :
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.
.. ~
2~9~
from the masking place.
Further, to solve said prior problems, a molded plastic foam and a vacuum formed plastic foam sheet has been provided as masking members for the coating of the underside of a car-body (For instance, Jikkai Sho 62-5852).
Said masking members may be molded in a panel shape, plug shape, clip shape, cap shape, and the like and said panel type masking member is attached to a flat masking place by an adhesive layer, said plug type masking member is attached in a hole, said clip type masking member is attached to a panel masking place by pinching, and said cap type masking member is attached on a projecting masking place.
Said masking members are also èasily attached to and removed from said masking places. Nevertheless, since said masking member consisting of a vacuum formed sheet and said panel type masking member are attached to said masking places by said adhesive layer, when said masking members are once attached to said masking member, it is difficult to move them to adjust the attaching position and to increase the attaching strength to prevent the moving or disconnecting of said masking members during the surface treatment, the bonding strength of said adhesive layer shoud be increased. ~evertheless, when the bonding strength of said adhesive layer is increased, and a large disconnecting force may be necessary when said masking members are removed and a problem that said adhesive layer transfers to the masking place may arise.
Especially, in a surface treatment applying high ~.
~ -
- 3 -: ~ :
:::
temperature heating, a serious problem that said adhesive layer of said masking members is annealed so as to transfer to said masking place may arise.
Further, it is desirable to attach and remove the masking member automatically by using a robot and the like in a continuous mass-production process such as the coating process for a car. Hitherto, a method wherein the masking member is removed by a hook equipped to the robot has been provided but in said prior method, it is feared that the surface of the article around said masking member will be damaged by said hook and if the position of said hook is not located clearly, it is feared that said hook will miss said masking member.
DISCLOSURE OF THE INVENTIO_ ~ The present invention provides a masking member j having (a) magnetic layer (s) -to solve said prior problems.
To attach said masking member of the present invention to a masking place, the magnet (s) is tare) ` arranged on the back of said maski.ng place and then said ~ masking member is attached to the surface of said ;~ masking place to fix said masking member by the magnetic force intermediating said magnetic layer. As above mentioned, said masking member is attached to said masking place without an adhesive layer.
Further, said masking member may be attached/removed to/from said masking place by a magnet (s) equipped to a robot intermediating said magnetic .
\
:::
temperature heating, a serious problem that said adhesive layer of said masking members is annealed so as to transfer to said masking place may arise.
Further, it is desirable to attach and remove the masking member automatically by using a robot and the like in a continuous mass-production process such as the coating process for a car. Hitherto, a method wherein the masking member is removed by a hook equipped to the robot has been provided but in said prior method, it is feared that the surface of the article around said masking member will be damaged by said hook and if the position of said hook is not located clearly, it is feared that said hook will miss said masking member.
DISCLOSURE OF THE INVENTIO_ ~ The present invention provides a masking member j having (a) magnetic layer (s) -to solve said prior problems.
To attach said masking member of the present invention to a masking place, the magnet (s) is tare) ` arranged on the back of said maski.ng place and then said ~ masking member is attached to the surface of said ;~ masking place to fix said masking member by the magnetic force intermediating said magnetic layer. As above mentioned, said masking member is attached to said masking place without an adhesive layer.
Further, said masking member may be attached/removed to/from said masking place by a magnet (s) equipped to a robot intermediating said magnetic .
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- 4 - ;
layer.
Accordingly, in the present invention, said masking member is very easily attached/removed to/from said masking place, and automatic attaching and removing can be easily attained, the attaching position of said masking member is easily adjusted and further, said problem of transfer of the adhesive layer is solved.
BRIEF DESCRIPTION OF THE DRAWINGS
Figs. 1 to 4 each show a first embodiment of the present invention and, :
Fig. 1 is a perspective view for illustration.
Fig. 2 is a perspective view of a masking member.
Fig. 3 is a side sectional view for illustration when said masking member is attached.
Fig. 4 is a perspective view of a bumper after coating.
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~; Figs. 5 to 11 each show a second embodiment of the present invention and, ~, Fig. 5 is a perspective view of 2 masking member.
Fig. 6 is a side view when said masking member is attached to an electromagnet. `
Fig. 7 is a side view of a masking place.
Fig. 8 is a side view after coating.
Fig. 9 is a side view when said masking member is attached to an electromagnet after coating.
Fig. 10 is a side view when said masking member is removed.
Fi~. 11 is a side view when said masking member is ;'' , `:
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~ : - i `
; ~ 1 2 ~
released from said electromagnet.
Figs. 12 and 13 each show a third embodiment of the present invention and, Fig. 12 is a perspective view of a masking member.
Fig. 13 is a side sectional view when said masking member is attached.
Figs. 14 and 15 each show a fourth embodiment of the present invention and, Fig. 14 is a perspective view of a masking member.
Fig. 15 is a side sectional view when said masking member is attached.
Figs. 16 and 17 each show a fifth embodiment of the present invention and, Fig. 16 is a perspective view of a masking member.
Fig. 17 is a side sectional view when said masking member is attached.
Figs. 18 and l9 each show a sixth embodiment of the present invention and, Fig. 18 is a perspective view of a masking member.
Fig. l9 is a side sectional view when said masking member is attached.
:
Figs. 20 and 21 each show a seventh embodiment of the present invention and, :
Fig. 20 is a perspective view of a masklng member.
2~3~
Fig. 21 is a side sectional view when said masking member is attached.
Figs. 22 and 23 each show an eighth embodiment of the present invention and, Fig. 22 is a perspective view of a masking member.
Fig. 23 is a side sectional view when said masking member is attached.
In the Figures:
t11), (12), (13), (14), (15), (16), (17), (18) ............ Masking member (11)A, (12)A, (13)A, (14)A, (15)A, (16)A, (17)A, (18)A
........ Magnetic layer DESCRIPTION OF THE INVENTION
Figs. 1 to 4 each show a first embodiment of the present invention. In the Figures, (11) is a masking ~` member and said masking member is used to protect the air-inlet (21)A of a bumper (21) of a car and has a shape corresponding to the ~ront shape of said air-inlet (21)A and inserting grooves (11)B, (11)C in which `~ crosspieces (21)B and a side piece (21)C of said air-inlet (21)A are respectively inserted are formed in said masking member (11). As shown in Fig. 2, magnetic layers (11)A, (11jA are formed on the upper edge and the lower edge of the back of said masking member by coating a magnetic paint in which a magnetic material such as iron powder and the like is mixed.
A masking member of the present invention is made ~- :
~ .
:, :
. - ..
' : : ~
: "
of a plastic such as polystyrene, polyethylene, polypropylene, polyvinyl-chloride1 polyurethane, melamine resin, urea resin, phenol resin and the like, a reinforced plastic wherein an inorganic filler such as calcium carbonate, talc, bentonite and the like is mixed in said plastic, a foamed plastic of said plastic, a synthetic rubber such as styrene-butadiene rubber, a crylonitrile-butadiene rubber and the like, a natural rubber, a molded fiber material wherein wood fiber, synthetic fiber, natural fiber, inorganic fiber etc. is bound by a binder to mold wood, paper, reclaimed paper, corrugated card-board, metal, and a complex or a laminate of two or more of said materials.
.
: (31) is a plastic magnet and said plastic magnet (31) has a shape corresponding to the back shape of said air-inlet (21)A of said bumper (21) and inserting grooves (31)B, (31)C in which said crosspieces (21)B
and a side piece (21)C of said air-inlet (21)A are respectively inserted are formed in said plastic magnet (31). Said plastic magnet (31) consists of a plastic such as polyethlene, polypropylene, polyvinyl-chloride, acrylonitrile-butadiene-styrene c~opolymer and the like in whcih a magnet powder such as Sm Co magnet powder, ` Nd-Fe magnet powder, ferrite magnet powder, and the like is mixed, and for instance, said plastic mixed with ~ said magnet powder is formed into a sheet and said : sheet is molded by a press, vacuum forming and the like to produce said plastic magnet (31) or the pellets of said plastic are mixed with said magnet powder and injection-molded to produce said plastic magnet (31).
Prior to coating, said plastic magnet (31) is attached in said air-inlet (21)A of said bumper (21) .~
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.: .
- 2 ~
from the back and said masking member (11) is attached in said air-inlet (21)A from the front. Thus, said magnetic layer (11)A, (ll)A are magnetically attracted to said plastic magnet (31) and said masking member (11) is firmly fixed in said air-inlet (21)A. This case is shown in Fig. 3. After said air-inlet (21)A is protected by said maskingmember (11) as above described, a coating is performed to form a coating film (41) on said bumper (21) excepting said air-inlet (21)A as shown in Fig. 4. After said coating, siad plastic magnet (31) is removed from the back of said air-inlet (21)A and said masking member (11) is removed from the front of said air-inlet t21)A.
` Figs. 5 to 11 each show a second embodiment of the present invention. A masking member (12) of this embodiment has a panel shape and a magnetic layer (12)A
is formed on the upper side of said-masking member (12) by attaching a foil of a magnetic material such as iron ito said upper surface by an adhesive, and an adhesive ,layer (12)B is formed on the lower side of said masking .`member (12) and a lacking part (12)C is formed around the circumference of said lower side.
. ` .
Said masking member (12) is magnetically attracted to an electro magnet (32) equipped to a robot by saidmagnetic layer (12)A wherein electricity is transmitted to the coil (32)A of said electro magnet (32)~as shown in Fig. 6, and said masking member (12) is transported to a flat masking place (22)A of an article (22~ and said masking member (12) is attached to said masking place (22)A by said adhesive layer (12)B
as shown in Fig. 7. And then, the electricity to said coil (32)A of said electro magnet (32) is cut off to '.'' ' ~ .
:
.
:
: . . ,:
:; . , : .. .: .
' ' : ; ' .. : , ' ' ~ ' ' ' ' ' , release said masking member (12) from said electro magnet (32) and after then, a coating is performed on the surface of said article (22) to form a coating film (42) as shown in Fig. 8 and in this embodiment, said coating film (42) around the circumference of said masking member (12) is cut by said lacking part (12)C of said masking member (12), said masking member (12) is easily removed without any obstruction of said coating film (42). To cut completely said coating film (42) around said masking member(12), it is desirable that the width W of said lacking part(12)C is more than 1 mm and the height h of said lacking part(12)C is between 0.2 to 10 mm, more preferably 0.5 to 5 mm as shown in Fig. 8. After said coating, said masking member (12) is magnetically attracted by said electro magnet (32) intermediating said magnetic layer (12)A wherein electricity is transmitted to said coil (32)A again as shown in Fig. 9 to remove said masking member (12) from said masking place (22)A of said article (22) as shown in Fig. 10. In this case, said masking member (12) is magnetically attracted by said electro magnet (32) without any obstruction of said coating film (42) covering said magnitic layer (12)A. Said masking member (12) is transported to the scrapping position and then the electricity to said coil (32)A of said electro magnet (32) is cut off to release said masking member (12) from said electro magnet (32) as shown in Fig. 11.
Figs. 12 and 13 each show a third embodiment of the present invention. A masking member (13) of the present invention has a plug shape consisting of a flange part (13)B and a tapering inserting part (13)C, and a magnetic layer (13)A is formed on the upper side . .
,:
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~ ~ 3 of sald flange part ( 13)B by scattering a magnetic powder such as iron powder and the like after an adhesive is coated on said upper side of said flange part ( 1 3 ) B .
Said masking member (13) is magnetically attracted by an electro magnet (33) intermediating said magnetic layer (13)A wherein electricity is transmitted to the coil (33)A of said electro magnet (33), the same as in the prior embodiment to insert said masking member ( 13) into a hole (23)A as a masking place of an article (23) as sho~n in Fig. 13, and after the surface treatment, said masking member (13) is removed from said hole (23)A
by the magnetic attraction of said electro magnet (32), the same as in the ~rior embodiment.
Figs. 14 and 15 each show a fourth embodiment of the present invention . A masking member ( 14 ) of this embodiment has a clip shape having an inserting groove tl4)B, and a magnetic layer (14)A is .formed on the outside of said masking member ( 14 ) by attaching a foil of a magnetic material to said outside.
Said masking member (14) is magnetically attracted by a permanent magnet (34) intermediating said magnetic layer (14)A wherein electricity is transmitted to attach said masking member ( 14) to a masking place (24)A
having a panel shape of an article (24) by inserting said masking place (24)A into said insertin g groove ( 1 4 )B as shown in Fig . 1 5, and after the surfacetreatment, s~id masking member (14) is removed from said masking place (24)A by the magnetic attraction of said permanent magnet (34), the same as in the prior embodiments .
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-: , . ~ . , ~ .
, 2 ~ & ~
Figs. 16 and 17 each show a fifth embodi~ent of the present invention. A masking member (15) of this embodiment has a cylinderical shape and an inserting hole (15)B is formed in said masking member (15) and a magnetic layer (15)A is formed on the upper side of said masking member (15) by attaching a foil of a magnetic material such as iron and the like on said upper side.
Said masking member (15) is magnetically attracted by an electro magnet (35) intermediating said magnetic layer (15)A wherein electricity is transmitted to the coil (35)A of said electro magnet (35), the same as in the second and third embodiments to attach said masking member (15) on a projecting masking place (25)A of an article (25) by inserting said masking place (25)A into said inserting hole (15)B as shown in Fig. 17, and said masking member (15) is removed from said masking place (25)A by the magnetic attraction of said electro magnet (35), the same as in the second and third embodiments.
Figs. 18 and 19 each show a sixth embodiment of the present invention. A masking member (16) of this embodiment has a vessel shape and a magnetic layer (16) A is formed on the inside of the bottom of said masking member (16) by coating a magnetic paint, the same as in the first embodiment, and an adhesive layer (16)B is formed on the outside of said bottom and a flange part (16)~ is formed outwardly from the upper edge of said masking member (16).
Said masking member (16) is magnetically attracted by an electro magnet (36) intermediating said magnetic .
2~3 ~ ~.t layer (16)A wherein electricity is transmitted to thecoil (36)A of said electro magnet (36), the same as in the prior embodiments to attach said masking member (16) to a flat masking place (26)A of an article (26) by said adhesive layer (16)8 as shown in Fig. 19, and after the surface treatment, said masking member (16) is removed from said masking place (26)A by the magnetic attraction of said electro magnet (36), the same as in the prior embodiments.
Figs. 20 and 21 each show a seventh embodiment of the present invention. A masking member (17) of this embodiment has a vessel shape forming an inserting hole (17)B on the inside of said masking member (17) and a magnetic layer (17)A is formed on the outside of the bottom of said masking member (17) by attaching a foil of a magnetic material, the same as in the second embodiment to said outside of said bottom by an adhesive, and a flange part (17)C is ~'ormed outwardly from the upper edge of said masking memgber (17).
Said masking member (17) is magnetically attracted by an electro magnet (37) intermediating said magnetic layer (17)A wherein electricity is trlansmitted to the coil (37)A of said electro magnet (37), the same as in the prior embodiments to attach said masking member (17) to a projecting masking place (27)A of an article (27) by inserting said masking place (27)A into said inserting hole (17)B as shown in Fig. 21, and after the sufrace treatment, said masking member (17) is removed from said masking place (27)A by the magnetic attraction of said electro magnet (37) the same as the prior embodiment.
.
, .
- 1 3 - ~
~ ,' . -:- : .
- ~. , .
., . ' ' ' . ~ .
:
:: ;
2 ~
Figs. 22 and 23 each show a eigth embodiment of the present invention. A masking member (18) of this embodiment consists of an inserting part (18)B having a vessel shape and a flange part (18)C formed from the upper edge of said inserting part (18)B having a vessel shape and a magnetic layer (18)A is formed on the upper side of said flange part (18)C, the same as in the prior embodiments.
Said masking member (18) is magnetically attracted by an electro magnet (38) intermediating said magnetic layer (18)A wherein ele^tricity is transmitted to the coil (38)A of said electro magnet (38), the same as in the prior embodiments to attach said masking member (18) in a hole (28)A of an article (28) as shown in Fig. 23, and after the sufrace treatment, said masking member (18) is removed from said masking place (28)A by the magnetic attraction of said electro magnet (38), the same as in the prior embodiments.
layer.
Accordingly, in the present invention, said masking member is very easily attached/removed to/from said masking place, and automatic attaching and removing can be easily attained, the attaching position of said masking member is easily adjusted and further, said problem of transfer of the adhesive layer is solved.
BRIEF DESCRIPTION OF THE DRAWINGS
Figs. 1 to 4 each show a first embodiment of the present invention and, :
Fig. 1 is a perspective view for illustration.
Fig. 2 is a perspective view of a masking member.
Fig. 3 is a side sectional view for illustration when said masking member is attached.
Fig. 4 is a perspective view of a bumper after coating.
:
~; Figs. 5 to 11 each show a second embodiment of the present invention and, ~, Fig. 5 is a perspective view of 2 masking member.
Fig. 6 is a side view when said masking member is attached to an electromagnet. `
Fig. 7 is a side view of a masking place.
Fig. 8 is a side view after coating.
Fig. 9 is a side view when said masking member is attached to an electromagnet after coating.
Fig. 10 is a side view when said masking member is removed.
Fi~. 11 is a side view when said masking member is ;'' , `:
.. . .
~ : - i `
; ~ 1 2 ~
released from said electromagnet.
Figs. 12 and 13 each show a third embodiment of the present invention and, Fig. 12 is a perspective view of a masking member.
Fig. 13 is a side sectional view when said masking member is attached.
Figs. 14 and 15 each show a fourth embodiment of the present invention and, Fig. 14 is a perspective view of a masking member.
Fig. 15 is a side sectional view when said masking member is attached.
Figs. 16 and 17 each show a fifth embodiment of the present invention and, Fig. 16 is a perspective view of a masking member.
Fig. 17 is a side sectional view when said masking member is attached.
Figs. 18 and l9 each show a sixth embodiment of the present invention and, Fig. 18 is a perspective view of a masking member.
Fig. l9 is a side sectional view when said masking member is attached.
:
Figs. 20 and 21 each show a seventh embodiment of the present invention and, :
Fig. 20 is a perspective view of a masklng member.
2~3~
Fig. 21 is a side sectional view when said masking member is attached.
Figs. 22 and 23 each show an eighth embodiment of the present invention and, Fig. 22 is a perspective view of a masking member.
Fig. 23 is a side sectional view when said masking member is attached.
In the Figures:
t11), (12), (13), (14), (15), (16), (17), (18) ............ Masking member (11)A, (12)A, (13)A, (14)A, (15)A, (16)A, (17)A, (18)A
........ Magnetic layer DESCRIPTION OF THE INVENTION
Figs. 1 to 4 each show a first embodiment of the present invention. In the Figures, (11) is a masking ~` member and said masking member is used to protect the air-inlet (21)A of a bumper (21) of a car and has a shape corresponding to the ~ront shape of said air-inlet (21)A and inserting grooves (11)B, (11)C in which `~ crosspieces (21)B and a side piece (21)C of said air-inlet (21)A are respectively inserted are formed in said masking member (11). As shown in Fig. 2, magnetic layers (11)A, (11jA are formed on the upper edge and the lower edge of the back of said masking member by coating a magnetic paint in which a magnetic material such as iron powder and the like is mixed.
A masking member of the present invention is made ~- :
~ .
:, :
. - ..
' : : ~
: "
of a plastic such as polystyrene, polyethylene, polypropylene, polyvinyl-chloride1 polyurethane, melamine resin, urea resin, phenol resin and the like, a reinforced plastic wherein an inorganic filler such as calcium carbonate, talc, bentonite and the like is mixed in said plastic, a foamed plastic of said plastic, a synthetic rubber such as styrene-butadiene rubber, a crylonitrile-butadiene rubber and the like, a natural rubber, a molded fiber material wherein wood fiber, synthetic fiber, natural fiber, inorganic fiber etc. is bound by a binder to mold wood, paper, reclaimed paper, corrugated card-board, metal, and a complex or a laminate of two or more of said materials.
.
: (31) is a plastic magnet and said plastic magnet (31) has a shape corresponding to the back shape of said air-inlet (21)A of said bumper (21) and inserting grooves (31)B, (31)C in which said crosspieces (21)B
and a side piece (21)C of said air-inlet (21)A are respectively inserted are formed in said plastic magnet (31). Said plastic magnet (31) consists of a plastic such as polyethlene, polypropylene, polyvinyl-chloride, acrylonitrile-butadiene-styrene c~opolymer and the like in whcih a magnet powder such as Sm Co magnet powder, ` Nd-Fe magnet powder, ferrite magnet powder, and the like is mixed, and for instance, said plastic mixed with ~ said magnet powder is formed into a sheet and said : sheet is molded by a press, vacuum forming and the like to produce said plastic magnet (31) or the pellets of said plastic are mixed with said magnet powder and injection-molded to produce said plastic magnet (31).
Prior to coating, said plastic magnet (31) is attached in said air-inlet (21)A of said bumper (21) .~
;:
.: .
- 2 ~
from the back and said masking member (11) is attached in said air-inlet (21)A from the front. Thus, said magnetic layer (11)A, (ll)A are magnetically attracted to said plastic magnet (31) and said masking member (11) is firmly fixed in said air-inlet (21)A. This case is shown in Fig. 3. After said air-inlet (21)A is protected by said maskingmember (11) as above described, a coating is performed to form a coating film (41) on said bumper (21) excepting said air-inlet (21)A as shown in Fig. 4. After said coating, siad plastic magnet (31) is removed from the back of said air-inlet (21)A and said masking member (11) is removed from the front of said air-inlet t21)A.
` Figs. 5 to 11 each show a second embodiment of the present invention. A masking member (12) of this embodiment has a panel shape and a magnetic layer (12)A
is formed on the upper side of said-masking member (12) by attaching a foil of a magnetic material such as iron ito said upper surface by an adhesive, and an adhesive ,layer (12)B is formed on the lower side of said masking .`member (12) and a lacking part (12)C is formed around the circumference of said lower side.
. ` .
Said masking member (12) is magnetically attracted to an electro magnet (32) equipped to a robot by saidmagnetic layer (12)A wherein electricity is transmitted to the coil (32)A of said electro magnet (32)~as shown in Fig. 6, and said masking member (12) is transported to a flat masking place (22)A of an article (22~ and said masking member (12) is attached to said masking place (22)A by said adhesive layer (12)B
as shown in Fig. 7. And then, the electricity to said coil (32)A of said electro magnet (32) is cut off to '.'' ' ~ .
:
.
:
: . . ,:
:; . , : .. .: .
' ' : ; ' .. : , ' ' ~ ' ' ' ' ' , release said masking member (12) from said electro magnet (32) and after then, a coating is performed on the surface of said article (22) to form a coating film (42) as shown in Fig. 8 and in this embodiment, said coating film (42) around the circumference of said masking member (12) is cut by said lacking part (12)C of said masking member (12), said masking member (12) is easily removed without any obstruction of said coating film (42). To cut completely said coating film (42) around said masking member(12), it is desirable that the width W of said lacking part(12)C is more than 1 mm and the height h of said lacking part(12)C is between 0.2 to 10 mm, more preferably 0.5 to 5 mm as shown in Fig. 8. After said coating, said masking member (12) is magnetically attracted by said electro magnet (32) intermediating said magnetic layer (12)A wherein electricity is transmitted to said coil (32)A again as shown in Fig. 9 to remove said masking member (12) from said masking place (22)A of said article (22) as shown in Fig. 10. In this case, said masking member (12) is magnetically attracted by said electro magnet (32) without any obstruction of said coating film (42) covering said magnitic layer (12)A. Said masking member (12) is transported to the scrapping position and then the electricity to said coil (32)A of said electro magnet (32) is cut off to release said masking member (12) from said electro magnet (32) as shown in Fig. 11.
Figs. 12 and 13 each show a third embodiment of the present invention. A masking member (13) of the present invention has a plug shape consisting of a flange part (13)B and a tapering inserting part (13)C, and a magnetic layer (13)A is formed on the upper side . .
,:
.
~ ~ 3 of sald flange part ( 13)B by scattering a magnetic powder such as iron powder and the like after an adhesive is coated on said upper side of said flange part ( 1 3 ) B .
Said masking member (13) is magnetically attracted by an electro magnet (33) intermediating said magnetic layer (13)A wherein electricity is transmitted to the coil (33)A of said electro magnet (33), the same as in the prior embodiment to insert said masking member ( 13) into a hole (23)A as a masking place of an article (23) as sho~n in Fig. 13, and after the surface treatment, said masking member (13) is removed from said hole (23)A
by the magnetic attraction of said electro magnet (32), the same as in the ~rior embodiment.
Figs. 14 and 15 each show a fourth embodiment of the present invention . A masking member ( 14 ) of this embodiment has a clip shape having an inserting groove tl4)B, and a magnetic layer (14)A is .formed on the outside of said masking member ( 14 ) by attaching a foil of a magnetic material to said outside.
Said masking member (14) is magnetically attracted by a permanent magnet (34) intermediating said magnetic layer (14)A wherein electricity is transmitted to attach said masking member ( 14) to a masking place (24)A
having a panel shape of an article (24) by inserting said masking place (24)A into said insertin g groove ( 1 4 )B as shown in Fig . 1 5, and after the surfacetreatment, s~id masking member (14) is removed from said masking place (24)A by the magnetic attraction of said permanent magnet (34), the same as in the prior embodiments .
, : . .: ' ' `
-: , . ~ . , ~ .
, 2 ~ & ~
Figs. 16 and 17 each show a fifth embodi~ent of the present invention. A masking member (15) of this embodiment has a cylinderical shape and an inserting hole (15)B is formed in said masking member (15) and a magnetic layer (15)A is formed on the upper side of said masking member (15) by attaching a foil of a magnetic material such as iron and the like on said upper side.
Said masking member (15) is magnetically attracted by an electro magnet (35) intermediating said magnetic layer (15)A wherein electricity is transmitted to the coil (35)A of said electro magnet (35), the same as in the second and third embodiments to attach said masking member (15) on a projecting masking place (25)A of an article (25) by inserting said masking place (25)A into said inserting hole (15)B as shown in Fig. 17, and said masking member (15) is removed from said masking place (25)A by the magnetic attraction of said electro magnet (35), the same as in the second and third embodiments.
Figs. 18 and 19 each show a sixth embodiment of the present invention. A masking member (16) of this embodiment has a vessel shape and a magnetic layer (16) A is formed on the inside of the bottom of said masking member (16) by coating a magnetic paint, the same as in the first embodiment, and an adhesive layer (16)B is formed on the outside of said bottom and a flange part (16)~ is formed outwardly from the upper edge of said masking member (16).
Said masking member (16) is magnetically attracted by an electro magnet (36) intermediating said magnetic .
2~3 ~ ~.t layer (16)A wherein electricity is transmitted to thecoil (36)A of said electro magnet (36), the same as in the prior embodiments to attach said masking member (16) to a flat masking place (26)A of an article (26) by said adhesive layer (16)8 as shown in Fig. 19, and after the surface treatment, said masking member (16) is removed from said masking place (26)A by the magnetic attraction of said electro magnet (36), the same as in the prior embodiments.
Figs. 20 and 21 each show a seventh embodiment of the present invention. A masking member (17) of this embodiment has a vessel shape forming an inserting hole (17)B on the inside of said masking member (17) and a magnetic layer (17)A is formed on the outside of the bottom of said masking member (17) by attaching a foil of a magnetic material, the same as in the second embodiment to said outside of said bottom by an adhesive, and a flange part (17)C is ~'ormed outwardly from the upper edge of said masking memgber (17).
Said masking member (17) is magnetically attracted by an electro magnet (37) intermediating said magnetic layer (17)A wherein electricity is trlansmitted to the coil (37)A of said electro magnet (37), the same as in the prior embodiments to attach said masking member (17) to a projecting masking place (27)A of an article (27) by inserting said masking place (27)A into said inserting hole (17)B as shown in Fig. 21, and after the sufrace treatment, said masking member (17) is removed from said masking place (27)A by the magnetic attraction of said electro magnet (37) the same as the prior embodiment.
.
, .
- 1 3 - ~
~ ,' . -:- : .
- ~. , .
., . ' ' ' . ~ .
:
:: ;
2 ~
Figs. 22 and 23 each show a eigth embodiment of the present invention. A masking member (18) of this embodiment consists of an inserting part (18)B having a vessel shape and a flange part (18)C formed from the upper edge of said inserting part (18)B having a vessel shape and a magnetic layer (18)A is formed on the upper side of said flange part (18)C, the same as in the prior embodiments.
Said masking member (18) is magnetically attracted by an electro magnet (38) intermediating said magnetic layer (18)A wherein ele^tricity is transmitted to the coil (38)A of said electro magnet (38), the same as in the prior embodiments to attach said masking member (18) in a hole (28)A of an article (28) as shown in Fig. 23, and after the sufrace treatment, said masking member (18) is removed from said masking place (28)A by the magnetic attraction of said electro magnet (38), the same as in the prior embodiments.
Claims
WE CLAIM
A masking member having (a) magnetic layer (s).
A masking member having (a) magnetic layer (s).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2-137505 | 1990-05-28 | ||
| JP2137505A JPH0429771A (en) | 1990-05-28 | 1990-05-28 | Masking material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2059664A1 true CA2059664A1 (en) | 1991-11-29 |
Family
ID=15200237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002059664A Abandoned CA2059664A1 (en) | 1990-05-28 | 1991-05-23 | Masking member |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0484560A4 (en) |
| JP (1) | JPH0429771A (en) |
| CA (1) | CA2059664A1 (en) |
| WO (1) | WO1991018678A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2751567B1 (en) * | 1996-07-26 | 1998-10-23 | Manducher Sa | DEVICE FOR MASKING A WORKPIECE FOR THE ELECTROSTATIC APPLICATION OF A POWDER PRIMER ON ITS BORDER |
| FR3020580B1 (en) * | 2014-04-30 | 2016-05-20 | Messier Bugatti Dowty | PROTECTIVE DEVICE AND METHOD USING SUCH A DEVICE |
| CN114733665A (en) * | 2022-03-07 | 2022-07-12 | 昆山和能五金塑胶科技有限公司 | A spraying fixture, spraying equipment and spraying method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60140673U (en) * | 1984-02-27 | 1985-09-18 | 住友金属工業株式会社 | Shielding plate for steel plate edging painting |
| JPS62126274U (en) * | 1986-01-31 | 1987-08-11 |
-
1990
- 1990-05-28 JP JP2137505A patent/JPH0429771A/en active Pending
-
1991
- 1991-05-23 CA CA002059664A patent/CA2059664A1/en not_active Abandoned
- 1991-05-23 WO PCT/JP1991/000696 patent/WO1991018678A1/en not_active Application Discontinuation
- 1991-05-23 EP EP19910909837 patent/EP0484560A4/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0484560A4 (en) | 1992-08-12 |
| WO1991018678A1 (en) | 1991-12-12 |
| JPH0429771A (en) | 1992-01-31 |
| EP0484560A1 (en) | 1992-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |