CN1723599A - Method and device for manufacturing flat commutator - Google Patents
Method and device for manufacturing flat commutator Download PDFInfo
- Publication number
- CN1723599A CN1723599A CN 200380105700 CN200380105700A CN1723599A CN 1723599 A CN1723599 A CN 1723599A CN 200380105700 CN200380105700 CN 200380105700 CN 200380105700 A CN200380105700 A CN 200380105700A CN 1723599 A CN1723599 A CN 1723599A
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- sheet metal
- chuck
- commutator
- forms
- drift
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/06—Manufacture of commutators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/04—Commutators
- H01R39/06—Commutators other than with external cylindrical contact surface, e.g. flat commutators
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
A method and a device for manufacturing a flat commutator, the method comprising the steps of fitting metal pieces forming a segment (3) to a cartridge (21), pressing the metal pieces by a punch (25) for performing a cartridge fitting step, wherein projections (22) radially formed and arranged between the metal pieces are formed on the cartridge (21) to restrict the circumferential movement of the metal pieces, an outer peripheral wall (24) in contact with the end part of the metal pieces is formed on the outer peripheral part of the cartridge (21) to restrict the radial movement of the metal pieces, double annular projections (27a) and (27b) are formed on the surface of the punch (25) opposed to the cartridge (21), and the annular projections (27a) and (27b) are pressed against the metal pieces to fit the side face of the metal pieces to the projections (22) of the cartridge (21).
Description
Technical field
The present invention relates to the manufacture method of the commutator of electric rotating machine, particularly relate to the manufacture method of the inclined to one side flat pattern commutator of disc type.
Background technology
In recent years, in the motor that uses, the motor of inclined to one side flat pattern commutator (flat commutator) has appearred adopting by the requirement of equipment miniaturization in driven steering device and engine starter, petrolift etc.This inclined to one side flat pattern commutator is different with general commutator cylindraceous, has the brush sliding surface of the plate-like of radially extending from axial rotary.Brush carries out the switching of armature supply from axial and the sliding contact of brush sliding surface.
The brush sliding surface is made of a plurality of commutator segments of the radial configuration that the metal parts that is called as the commutator metal is formed.The body global formation of each commutator segment and synthetic resin.Each commutator segment is installed on the circular chuck, with the Unitarily molded moulding of this state.Be provided with the projection that is used to keep each commutator segment side on chuck, commutator segment is installed between this projection.
Being installed in commutator segment on the chuck advances in resin casting mold operation and exercises fixedly pushing of being close between commutator segment and the projection.Fig. 8, Fig. 9 are illustrated in the key diagram that chuck is close to the machining state in the operation.As Fig. 8, shown in Figure 9, this chuck is close to operation, and the drift 52 of push projection 51 carries out by be equipped with fixedly in the lower surface.Drift 52 is crimped on the commutator segment 54 from the top of chuck 53, and fixedly push projection 51 is pressed near the gap 55 of 54 of commutator segments.Thus, the fixing trace 56 of formation on commutator segment 54.
Be close in the operation at chuck, by fixing push projection 51, the two sides that are positioned at the gap 55 of its below are deformed into to each gap outstanding.Insert the projection 57 of chuck 53 in gap 55, the two sides in gap 55 are pressed towards this projection 57.The end face of 55 inner processes 57 and commutator segment 54 is adjacent in the gap thus, can prevent that in pattern making procedure synthetic resin 55 goes out to sliding surface 58 side leakages from the gap.In addition, the position former state of projection 57 remains in 54 of commutator segments as recess, and this recess former state becomes the slit of 54 of commutator segments.
And be close in the chuck operation at this, must making fixedly, push projection 51 and 55 in gap carry out correct contraposition, therefore, exist the aligning accuracy etc. of 52 of the dimensional accuracy, chuck 53 of commutator segment 54 and chuck 53, drift 52 and drifts to become strict, the mode of fixedly pushing that relates to is to their the error problem such as unfavorable that becomes.
Therefore, as Figure 10, shown in Figure 11, attempted using the mode of the flat drift 59 of hollow cylindrical that needn't contraposition.The bottom surface 61 of flat drift 59 becomes not the fixedly tabular of push projection 51, and commutator segment 54 is pushed by flat drift 59 above its recess 62 is whole not only near gap 55 entirely.
But when using flat drift 59, the pressurization area becomes big, is close to the necessary duty ratio (12t → 25t) for example that uses fixedly that the situation of push projection 51 becomes greatly in order to make chuck 53 and commutator segment 54.Therefore, need more large-scale equipment, produce the problem that so-called equipment cost strengthens than fixedly pushing mode.In addition, also there is because the scale error of commutator segment 54 grades produces the position of load centralization the problem that commutator segment 54 and chuck 53, flat drift 59 etc. are damaged easily.
The object of the present invention is to provide a kind of not contraposition, and the instrument that chuck and commutator segment are close to low pressurization load.
Summary of the invention
The manufacture method of platypelloid type commutator of the present invention is to make the method for the platypelloid type commutator that comprises discoid support portion that forms with synthetic resin and a plurality of commutator segments that circumferentially dispose on an axial end face edge of described support portion, it comprises on chuck the operation that the sheet metal that forms described commutator segment is installed, described chuck comprise be configured between described sheet metal, the circumferential movement limiting portion that moves that the described sheet metal of restriction is circumferential and be configured in described sheet metal longitudinal end, the described sheet metal of restriction radially move move radially restrictions; Be used in the drift that forms a plurality of ring-types press section on the face relative and push described sheet metal, make described sheet metal be close to the operation of the described circumferential movement limiting portion of described chuck with described chuck.
In the present invention, be close to operation, compare, can relax the aligning accuracy between drift and chuck with the existing fixed mode of pushing owing to carry out chuck with drift with circular protrusion.In addition,, compare, can make sheet deformation with low load with the situation of pressurizeing with the whole bottom surface of drift owing to be used in a plurality of ring-types press section pressurized metal sheet that forms on the drift.And then, owing to circumferential movement limiting portion with move radially the moving circumferentially and radially of restrictions restriction sheet metal, and pressurize, sheet metal circumferentially reaches radially distortion during the restriction pressurization, even pressurize in the whole bottom surface without drift, also can make sheet metal be close to chuck.
In described platypelloid type commutator manufacture method,, also projection can be set radially on described chuck as described circumferential movement limiting portion.In addition, as the described restrictions that moves radially, the also wall body that can contact with the peripheral part of described sheet metal in the peripheral part setting of described chuck.And then, as described ring-type press section, also can circular protrusion be set on the opposite of the described chuck of described drift.
In described platypelloid type commutator manufacture method, as described circular protrusion, also can be provided with first projection that forms at the outside diameter of described sheet metal and with the described first projection devices spaced apart, in second projection that the internal side diameter of described sheet metal forms, make described first and second projections with respect to the gap that between described commutator segment, forms by circumferential movement limiting portion in radially devices spaced apart contact.At this moment, also can on described sheet metal, form the drift trace of ring-type, described sheet metal and described circumferential movement limiting portion are close to described first and second projections.
And the manufacturing installation of platypelloid type commutator of the present invention is a device of making the platypelloid type commutator that comprises that discoid support portion that forms with synthetic resin and a plurality of commutator segments that circumferentially dispose in an axial end face upper edge of described support portion are formed, and it comprises: chuck and drift.This chuck is accommodated the sheet metal that forms described commutator segment, comprise be configured between described sheet metal, the circumferential circumferential movement limiting portion that moves of the described sheet metal of restriction and be configured in described sheet metal longitudinal end, the described sheet metal of restriction radially move move radially restrictions; This drift is used in a plurality of ring-types press section that forms on the face relative with described chuck with described sheet metal crimping.
In the present invention,, compare, can relax at chuck and be close to drift in the operation and the aligning accuracy between chuck with the existing fixed mode of pushing owing on to the drift of sheet metal pressurization, form a plurality of ring-types press section.In addition, compare, can make sheet deformation with low load with the situation of pressurizeing with the whole bottom surface of drift.And then owing to be provided with circumferential movement limiting portion and move radially restrictions on chuck, the circumferential and distortion radially of sheet metal even pressurize without the whole bottom surface of drift, also can make sheet metal be close to chuck when being limited in the drift pressurization.
In described platypelloid type commutator manufacturing installation,, also projection can be set radially on described chuck as described circumferential movement limiting portion.In addition, as the described restrictions that moves radially, the also wall body that can contact with the peripheral part of described sheet metal in the peripheral part setting of described chuck.And then, as described ring-type press section, also can with opposite described chuck circular protrusion be set described drift.
In described platypelloid type commutator manufacture method, as described circular protrusion, also can be provided with first projection that forms at the outside diameter of described sheet metal and with the described first projection devices spaced apart, in second projection that the internal side diameter of described sheet metal forms, make described first and second projections with respect to the gap that between described commutator segment, forms by circumferential movement limiting portion in radially devices spaced apart contact.At this moment, also can form the drift trace of ring-type with described first and second projections on described sheet metal, described sheet metal is close at the position and the described circumferential movement limiting portion of described drift trace.
Description of drawings
Fig. 1 is the part cut-out stereogram of the platypelloid type commutator example made with manufacture method of the present invention (or manufacturing installation) of expression;
Fig. 2 is the stereogram that expression forms each sheet metal structure of commutator segment;
Fig. 3 is the key diagram of expression chuck structure;
Fig. 4 (a) is the profile of the drift of an embodiment of the present invention, and Fig. 4 (b) is its ground plan;
Fig. 5 is illustrated in the key diagram that chuck is close to the machining state in the operation, Fig. 5 (a) is the plane graph of chuck that the state of commutator segment has been installed, Fig. 5 (b) expression make drift from the top state near the chuck of Fig. 5 (a) state, be the profile of chuck part along the A-A line of Fig. 5 (a);
Fig. 6 is the profile that expression makes the state of drift and commutator segment crimping;
Fig. 7 is the key diagram that the expression chuck is close to the commutator segment state after the operation;
Fig. 8 is illustrated in the key diagram that chuck is close to the existing machining state in the operation;
Fig. 9 is illustrated in the key diagram that chuck is close to the existing machining state in the operation;
Figure 10 is illustrated in the key diagram that chuck is close to existing another machining state in the operation;
Figure 11 is illustrated in the key diagram that chuck is close to existing another machining state in the operation.
Embodiment
(embodiment 1)
Below describe embodiments of the present invention in detail based on drawing.Fig. 1 is the partial cutoff stereogram of an example of the platypelloid type commutator made of expression manufacture method of the present invention.
Commutator 1 constitutes flat configuration as shown in Figure 1, uses in the fuel feed pump in actuating motor and fuel tank etc.Commutator 1 has support portion 2 and a plurality of metal commutator segment 3 that synthetic resin is made; Commutator segment 3 and support portion 2 compression molding one.The surface of commutator segment 3 (Fig. 1's is top) becomes brush sliding surface 4, contacts from axial and not shown brush at this.
Such commutator 1 is installed in each commutator segment 3 on the circular support, at this state molding synthetic resin molded integral.Unshowned rotating shaft and armature core in 1 while of commutator of moulding installation diagram, the coil spiral coats the formation armature assembly with synthetic resin then.
Support portion 2 forms the cardinal principle disc-shape of heavy wall, forms the axis hole 5 of fixed electrical machinery rotating shaft at central part.An axial end face of 2 uniformly-spaced sets a plurality of commutator segments 3 in the support portion.Each commutator segment 3 forms fan-shaped substantially, is radial configuration on the surface of support portion 2.Between commutator segment 3, be formed for making the slit 6 of adjacent commutator segment 3 electrically insulated from one another.
Fig. 2 is the stereogram that expression commutator segment 3 constitutes.As shown in Figure 2, commutator segment 3 has the body 7 that forms brush sliding surface 4 and is provided with step in the outside of body 7 and the peripheral part 8 that forms.Be provided with the coil mounting groove 9 of U font at peripheral part 8.Fix not shown armature coil at coil mounting groove 9 by melting.
Interior all sides at body 7 are provided with hub portion 11, and the face side forms the oblique 12a of portion within it.Border at body 7 and peripheral part 8 forms stage portion 13, and the face side also forms the oblique 12b of portion within it.Tiltedly the 12a of portion, 12b form fixed part 14 to the expansion of body 7 sides, and this fixed part 14 becomes the parts that prevent commutator segment 3 relative support portions 2 axial play.
As previously mentioned, such commutator segment 3 is installed in resin molding on the chuck 21, advances at the resin pattern making procedure and exercises commutator segment 3 and 21 chucks that are close to of chuck are close to operation.Fig. 3 is the key diagram of the structure of expression chuck 21.As shown in Figure 3, on chuck 21, be provided with the projection (circumferentially movement limiting portion) 22 that is used to keep each commutator segment 3.Projection 22 forms wedge-like, is keeping the body 7 of commutator segment 3 22 of projections.Be provided with the periphery wall (moving radially restrictions) 24 that the stage portion 23 of the stage portion 13 of supporting commutator segment 3 contacts with outer peripheral face with peripheral part 8 at the peripheral part of chuck 21.Commutator segment 3 remains on 22 of projections, simultaneously, is installed on the chuck 21 under the state that remains on stage portion 23 and periphery wall 24.
In this embodiment, chuck is close to operation and carries out with as shown in Figure 4 drift 25.Fig. 4 (a) is the profile of the drift 25 of an embodiment of the present invention, and Fig. 4 (b) is its ground plan.Drift 25 forms hollow cylindrical as shown in Figure 4.On the bottom surface 26 of drift 25, form circular protrusion (ring-type press section) 27a, the 27b of two annulars.Circular protrusion 27a (first projection) forms along the periphery (outside diameter) of drift 25, and circular protrusion 27b (second projection) and circular protrusion 27a separate, along forming in interior week (internal side diameter) of drift 25.The end face of circular protrusion 27a, 27b becomes plane, and two circular protrusion 27a, 27b form identical height.Form the recess 28 of groove shape between circular protrusion 27a, 27b.
Fig. 5 is illustrated in the key diagram that chuck is close to the machining state in the operation, Fig. 5 (a) is the plane graph of chuck 21 that the state of commutator segment 3 has been installed, Fig. 5 (b) expression make drift 25 from the top state near the chuck 21 of Fig. 5 (a) state, be the profiles of chuck 21 parts along the A-A line of Fig. 5 (a).Fig. 6 is the profile that expression makes the state of drift 25 and commutator segment 3 crimping; Fig. 7 is the key diagram that the expression chuck is close to the state of the commutator segment 3 after the operation.
As Fig. 5, shown in Figure 6, circular protrusion 27a, the 27b of drift 25 enters in the fixed part 14 of commutator segment 3 from the top.In fixed part 14, circular protrusion 27a, 27b contact is also pushed fixed part bottom surface 14a.As long as at this moment carry out size Control radially between circular protrusion 27a, 27b and the commutator segment 3 so that circular protrusion 27a, 27b are received in the fixed part 14 just enough.Be that the aligning accuracy of 21 on drift 25 and chuck is closed the existing fixed push type and relaxed significantly.Thereby, can relax the dimensional accuracy of commutator segment 3 grades, can expect to improve rate of finished products and cut down number, reduce manufacturing cost.
On chuck 21, commutator segment 3 remains between the projection 22 that forms wedge-like, and all sides moves, is out of shape in being limited in.And the outer circumferential side of commutator segment 3 is also by stage portion 23 and periphery wall 24 restrictions.Therefore, as long as push with drift 25, the side that faces the gap 29 of 3 of commutator segments will be out of shape, make commutator segment 3 above just be deformed in gap 29 when pushing circular protrusion 27a, 27b and give prominence to.At this moment, on commutator segment 3, form drift trace 31 shown in Figure 7, the position of this drift trace 31 and near, projection 22 and commutator segment 3 are close to.And pressing force is not directly born in the position relative with recess 28, but the distortion of the two sides in the gap 29 that produces by circular protrusion 27a, 27b by the extension of material up to the relative position of recess.
The projection 22 of chuck 21 is inserted in the gap 29, and two sides that face commutator segment 3 in gap 29 withstand on the projection 22.Even block the extension that is close to material by drift 25, the end face of projection 22 and commutator segment 3 will be close in gap 29.In addition, the extension of the material by commutator segment 3, stage portion 23 and peripheral part 24 are close to, and commutator segment 3 and chuck 21 are close to.
Like this, in the present invention,, load is concentrated to protuberance, can push load and make commutator segment 3 begin to be out of shape with low because drift 25 usefulness circular protrusion 27a, 27b push commutator segment 3.In addition, because with moving and distortion of restriction commutator segments 3 such as wedge-like projection 22 and stage portion 23, periphery wall portion 24, so can form the pressurization by drift 25, commutator segment 3 is to the shape of gap 29 direction bendings, even low load also can make 21 on commutator segment 3 and chuck be close to effectively.Thereby, do not need main equipment, simultaneously,,, can expect to reduce manufacturing cost even produce the breakage that load centralization also is difficult to form drift 25 and chuck 21 etc. by scale error because the pressurization load is little.And according to inventor's experiment, commutator segment 3 and chuck 21 also fully were close to when load was 12t, resin can not take place in pattern making procedure sew.
The invention is not restricted to above-mentioned execution mode, in the scope that does not break away from its aim, can carry out various changes certainly.
For example, though drift 25 uses the design that forms double circular protrusion, also can its be designed to triple more than, and then make the shape of multiple ring.In addition, the formation position of circular protrusion 27a, 27b is not limited to peripheral part, interior perimembranous, also can be located at from the position that outer circumference end and interior Zhou Duan leave.And described execution mode, stage portion 23 also works as moving radially restrictions with periphery wall 24, as long as but as move radially restrictions have at least one just much of that, may not need two.
According to the manufacture method and the manufacturing installation of platypelloid type commutator of the present invention, be close to operation owing to carry out chuck with drift with circular protrusion, compare with the existing fixed push type, can relax the aligning accuracy between drift and chuck.Thereby, can relax the dimensional accuracy of commutator segment etc., can expect to improve rate of finished products and cut down number, reduce manufacturing cost.
In addition, sheet metal is pressurizeed, compare, can make sheet deformation with low load with the situation of pressurizeing with the whole bottom surface of drift owing to be used in a plurality of ring-types press section of drift formation.In addition, owing to circumferential movement limiting portion with move radially moving and carrying out the drift pressurization of restrictions restriction sheet metal,,, also can make sheet metal be close to chuck even pressurize without the whole bottom surface of drift so can when pressurization, limit the distortion of sheet metal.Thereby such main equipment when not needing to use flat drift simultaneously, because the pressurization load is little, even produce load centralization by scale error, also is difficult to cause breakages such as drift and chuck, can reduce manufacturing cost.
Claims (12)
1. the manufacture method of a platypelloid type commutator, it is the method for making the platypelloid type commutator that comprises that discoid support portion that forms with synthetic resin and a plurality of commutator segments that circumferentially dispose in an axial end face upper edge of described support portion are formed, it is characterized in that, comprise: install to form the operation of the sheet metal of described commutator segment on chuck, described chuck comprises and being configured between described sheet metal, limit circumferential circumferential movement limiting portion that moves of described sheet metal and the longitudinal end that is configured in described sheet metal, limit described sheet metal radially move move radially restrictions; Be used in the drift that forms a plurality of ring-types press section on the face relative and push described sheet metal, make described sheet metal be close to the operation of the described circumferential movement limiting portion of described chuck with described chuck.
2. the manufacture method of platypelloid type commutator as claimed in claim 1 is characterized in that, described circumferential movement limiting portion is the projection that is provided with radially on described chuck.
3. the manufacture method of platypelloid type commutator as claimed in claim 1 or 2 is characterized in that, the described peripheral part that restrictions is arranged on described chuck, the wall body that contacts with the peripheral part of described sheet metal of moving radially.
4. as each described platypelloid type commutator manufacture method in the claim 1～3, it is characterized in that described ring-type press section is the circular protrusion that forms on the opposite of the described chuck of described drift.
5. platypelloid type commutator manufacture method as claimed in claim 4, it is characterized in that described circular protrusion has: first projection that forms at the outside diameter of described sheet metal and second projection that forms with the described first projection devices spaced apart, at the internal side diameter of described sheet metal; Described first and second projections are with respect to the gap that forms between described commutator segment by circumferential movement limiting portion, in radially devices spaced apart contact.
6. as platypelloid type commutator manufacture method as described in the claim 5, it is characterized in that, on described sheet metal, form the drift trace of ring-type, described sheet metal and described circumferential movement limiting portion are close to described first and second projections.
7. the manufacturing installation of a platypelloid type commutator, it is the device of making the platypelloid type commutator that comprises that discoid support portion that forms with synthetic resin and a plurality of commutator segments that circumferentially dispose in an axial end face upper edge of described support portion are formed, it is characterized in that, comprising:
Chuck, it accommodates the sheet metal that forms described commutator segment, comprise be configured between described sheet metal, the circumferential circumferential movement limiting portion that moves of the described sheet metal of restriction and be configured in described sheet metal longitudinal end, the described sheet metal of restriction radially move move radially restrictions;
Drift, it forms a plurality of ring-types press section and described sheet metal crimping on the face relative with described chuck.
8. platypelloid type commutator manufacturing installation as claimed in claim 7 is characterized in that, described circumferential movement limiting portion is the projection that is provided with radially on described chuck.
9. as claim 7 or 8 described platypelloid type commutator manufacturing installations, it is characterized in that the described peripheral part that restrictions is arranged on described chuck, the wall body that contacts with the peripheral part of described sheet metal of moving radially.
10. as each described platypelloid type commutator manufacturing installation in the claim 8～9, it is characterized in that the ring-type press section is the circular protrusion that forms on opposite described drift and described chuck.
11. platypelloid type commutator manufacturing installation as claimed in claim 10, it is characterized in that second projection that described circular protrusion has first projection that forms at the outside diameter of described sheet metal and forms with the described first projection devices spaced apart, at the internal side diameter of described sheet metal; Described first and second projections are with respect to the gap that forms between described commutator segment by circumferential movement limiting portion, in radially devices spaced apart contact.
12., it is characterized in that form the drift trace of ring-type with described first and second projections on described sheet metal, described sheet metal is close at the position and the described circumferential movement limiting portion of described drift trace as claim 11 platypelloid type commutator manufacturing installation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002357511A JP4149790B2 (en) | 2002-12-10 | 2002-12-10 | Flat commutator manufacturing method and flat commutator manufacturing apparatus |
| JP357511/2002 | 2002-12-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1723599A true CN1723599A (en) | 2006-01-18 |
| CN100334794C CN100334794C (en) | 2007-08-29 |
Family
ID=32500854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801057007A Expired - Fee Related CN100334794C (en) | 2002-12-10 | 2003-12-02 | Method and device for manufacturing flat commutator |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1575150A4 (en) |
| JP (1) | JP4149790B2 (en) |
| CN (1) | CN100334794C (en) |
| AU (1) | AU2003284536A1 (en) |
| WO (1) | WO2004054074A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815889A (en) * | 2015-04-23 | 2015-08-05 | 瑞安市博宇电器有限公司 | Hook bender of automatic commutator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131407A (en) | 1977-04-22 | 1978-11-16 | Mitsuba Electric Mfg Co | Method of manufacturing compact commutator |
| JPS5845013A (en) * | 1981-09-10 | 1983-03-16 | Mitsuba Denki Seisakusho:Kk | Manufacture of molded commutator |
| JPS5889049A (en) * | 1981-11-21 | 1983-05-27 | Mitsuba Denki Seisakusho:Kk | Manufacture of molded commutator |
| JP2799599B2 (en) * | 1989-09-22 | 1998-09-17 | 株式会社原田製作所 | Manufacturing method of thick plate flat commutator |
| IL111406A0 (en) | 1994-10-26 | 1994-12-29 | Costar Ltd | End face type commutator for starters and process of manufacturing thereof |
| EP0709037B1 (en) * | 1994-10-31 | 2001-05-02 | Daicel Chemical Industries, Ltd. | A tobacco filter material and a tobacco filter as produced using the same |
-
2002
- 2002-12-10 JP JP2002357511A patent/JP4149790B2/en not_active Expired - Fee Related
-
2003
- 2003-12-02 AU AU2003284536A patent/AU2003284536A1/en not_active Abandoned
- 2003-12-02 EP EP03776027A patent/EP1575150A4/en not_active Withdrawn
- 2003-12-02 CN CNB2003801057007A patent/CN100334794C/en not_active Expired - Fee Related
- 2003-12-02 WO PCT/JP2003/015425 patent/WO2004054074A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815889A (en) * | 2015-04-23 | 2015-08-05 | 瑞安市博宇电器有限公司 | Hook bender of automatic commutator |
| CN104815889B (en) * | 2015-04-23 | 2017-10-27 | 瑞安市博宇电器有限公司 | Full automatic commutator bender |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4149790B2 (en) | 2008-09-17 |
| EP1575150A1 (en) | 2005-09-14 |
| JP2004194397A (en) | 2004-07-08 |
| EP1575150A4 (en) | 2008-07-16 |
| WO2004054074A1 (en) | 2004-06-24 |
| AU2003284536A1 (en) | 2004-06-30 |
| CN100334794C (en) | 2007-08-29 |
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Granted publication date: 20070829 Termination date: 20171202 |