CN201731888U - Rotary encoder - Google Patents
Rotary encoder Download PDFInfo
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- CN201731888U CN201731888U CN2010201151186U CN201020115118U CN201731888U CN 201731888 U CN201731888 U CN 201731888U CN 2010201151186 U CN2010201151186 U CN 2010201151186U CN 201020115118 U CN201020115118 U CN 201020115118U CN 201731888 U CN201731888 U CN 201731888U
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- axle sleeve
- pit
- rotor
- rotating shaft
- positioning
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Abstract
The utility model relates to the electronic technology, in particular to a rotary encoder. The rotary encoder comprises a rotating shaft, a shaft sleeve, a clamp ring, at least one rotor, at least one body, at least one set of coding circuit contact plates corresponding to the bodies, a support and a gear positioning structure, or is provided with a stop structure. The gear positioning structure comprises a plurality of cylindrical positioning projections, positioning holes, positioning spiral springs and positioning balls, wherein the positioning projections are fabricated on the side wall of a cylindrical pit on the bottom surface of the shaft sleeve, the positioning holes are mounted on the side wall of the rotor on the bottom surface of the shaft sleeve and at two radial ends of the rotor along the direction of the diameter, the positioning spiral springs and the positioning balls are respectively mounted in the two positioning holes, or the gear positioning structure comprises an elastic plate and a positioning plate. The rotary encoder has the advantages that positioning accuracy of the rotary encoder is increased, hand feel of the rotary handle can meet requirement of gravitational torque and is uniform, and service life of the rotary encoder can be increased by tens of thousands of times, so that the rotary encoder is wide in application and applicable to automobiles, multimedia sound installations, household electric appliances and the like.
Description
Technical field
The utility model relates to electronic technology, instigates the rotary encoder that is used for electronics, communication apparatus especially.
Background technology
Rotary encoder is a kind of primary structure of scrambler, by the rotation of rotating shaft, from being installed on the terminal outupt coded signal of body.The location structure of gear is that the gear location structure is that the rotating shaft of control rotary encoder is rotated and the structure that whether puts in place is rotated in indication, and each gear is from the corresponding output of terminal one coded signal of body.In the prior art, there is a kind of gear location structure of scrambler that Location resilient piece is riveted on the axle sleeve, on the fluctuation dish, directly rotates and the generation location hand feeling.Because fluctuation dish plastic production, plastics have the shrink characteristic, and its wearing quality also is short of, and can make the pilot hole arrangement of the system of holding on the fluctuation dish inhomogeneous, and later stage in life-span location torque descends fast.Thereby cause electric property not good, and therefore moment is not accomplished gravitational torque; Shorten serviceable life simultaneously, influence the serviceable life of entire product.
The utility model content
The utility model is intended to overcome the above-mentioned deficiency of prior art, releases a kind of rotary encoder.Its gear polarization is good, and location hand feeling is good, can do to gravitational torque requirement, long service life.
For this reason, a kind of rotary encoder of the utility model adopts following technical scheme:
A kind of rotary encoder of structure the utility model comprises:
Rotating shaft;
Axle sleeve is shaped on the axis hole of break-through up and down, so that allow rotating shaft pass from top to bottom on the axle sleeve; The bottom surface of axle sleeve is shaped on pit cylindraceous;
Collar is stuck in the rotating shaft, makes rotating shaft be positioned axle sleeve up and down, allows rotating shaft is unlikely deviates from;
At least one rotor, described rotor is round table-like, and heart position is shaped on the axis hole of break-through up and down therein, so that allow rotating shaft pass from top to bottom, and described rotor is rotated with rotating shaft; Described rotor is installed in the pit of axle sleeve or in the pit of body;
At least one body and at least one cover coding circuit contact chip corresponding with described body, being shaped on through hole on the described body passes through from top to bottom by rotating shaft, be shaped on pit around its through hole on the end face of described body, the brush that moulding is arranged on described body, the bottom surface that one end of brush exposes the pit of described body for the brush pawl, the other end of brush be connected with an end of terminal or global formation after plastic in described body, the other end of terminal stretches out from described body; Described coding circuit contact chip plastic in or be printed on the described rotor and it is surface exposed in the bottom surface of described rotor, described rotor is from the heavy pit of being located at described body in the top of described body, the brush pawl of brush contacts with the described epitrochanterian described coding circuit contact chip that rotates with rotating shaft, from the terminal outupt coded signal;
Support;
Also comprise the gear location structure;
Described gear location structure is included in the positioning convex that is shaped on a plurality of cylindricalitys on the sidewall of pit cylindraceous of axle sleeve bottom surface, the length direction of positioning convex is an above-below direction, the direction that positioning convex protrudes is pointed to the center of circle of pit xsect, and the positioning convex each interval is uniformly distributed in whole circle on the pit sidewall to form gear; On the sidewall of the described rotor that is installed on the axle sleeve bottom surface and at the two ends of a diameter of this rotor, formulate a hole, position along opening respectively on the direction of this diameter, installing and locating volute spring separately in hole, two described location, go back the installing and locating pearl in hole, two described location separately, helical spring outer end and positioning bead offset; When being installed in setting screw bullet in the hole, described location and positioning bead together be installed on the axle sleeve bottom surface with this rotor the pit, positioning convex on positioning bead and the axle sleeve bottom surface pit sidewall or the depression between positioning convex offset, and the gear location that is recessed to form between the positioning convex on positioning bead and the axle sleeve bottom surface pit sidewall contacts; Each gear, the terminal correspondence from described body is exported a coded signal; This rotor rotates with rotating shaft, and positioning bead is located thereupon next depression between the positioning convex that falls on the pit sidewall of axle sleeve bottom surface;
Perhaps, described gear location structure comprises Location resilient piece and spacer, the fastening pit that is installed on the axle sleeve bottom surface of Location resilient piece, and it is circular that Location resilient piece is, rotating shaft is passed from the center of Location resilient piece from top to bottom, and compacting location in the one or both ends of a diameter is protruding on Location resilient piece; It is circular that spacer is, the centre of spacer has through hole, spacer pastes and is fastened on the end face of the described rotor that is arranged at axle sleeve bottom surface pit mutually, drive a plurality of pilot holes of system around its through hole on spacer, described pilot hole each interval is uniformly distributed in the whole circle of spacer to form gear; When this rotor of installing and locating sheet is arranged at the pit of axle sleeve bottom surface, paste mutually with the Location resilient piece that is anchored on axle sleeve bottom surface pit from the below, pilot hole formation gear location protruding and on the spacer, the location on the Location resilient piece contacts; Each gear, the terminal correspondence from described body is exported a coded signal; This rotor rotates with rotating shaft, locatees protrudingly to rotate with respect to spacer, locatees protrudingly to locate thereupon falling into next pilot hole.
Technique scheme is further set forth:
Described axle sleeve is made of metal material, and deformation is little, wear-resisting wiping.
Described positioning bead is made of steel, and deformation is little, wear-resisting wiping.
Described spacer is the spacer of metal material, and deformation is little, makes the position of positioning hole of the system of opening on it keep accuracy, wear-resisting wiping.
The utility model is compared with prior art, beneficial effect is: one, improve the gear location structure, in preceding a kind of gear location structure, the axle sleeve of metal, the steel positioning bead, wearing quality improves greatly, helical spring in addition sensitivity, the accuracy of its location improves, feel can be done to the gravitational torque requirement, and feel is even, and the life-span can improve tens thousand of times; In a kind of gear location structure in back, described spacer is a metal material, and deformation is very little, has improved the uniformity coefficient that pilot hole distributes, and wearing quality also improves, and is same, and the accuracy of its location improves, and feel can be done to the gravitational torque requirement, and feel is even, and the life-span improves.Its two, a plurality of scramblers can be combined, overall volume is dwindled greatly, it is little to take up room, and is convenient to the complete machine microminaturization, or vacating space.Its three, purposes is wide, is applicable to automobile, multimedia sound equipment, household electrical appliance, instrument and meter, Medical Devices and aerospace equipment etc.
Description of drawings
Fig. 1 is the utility model embodiment one decomposing schematic representation.
Fig. 2 is the utility model embodiment two decomposing schematic representations.
Fig. 3 is the utility model embodiment three decomposing schematic representations.
Fig. 4 is the utility model embodiment four decomposing schematic representations.
Among the figure: 1, rotating shaft; 2, axle sleeve; 21, positioning convex; 3, collar; 4, Location resilient piece; 41, the location is protruding; 5, spacer; 51, pilot hole; 6, rotor; 7, body; 8, brush; 9, terminal; 10, support; 11, hole, location; 12, setting screw spring; 13, positioning bead; 14, coding circuit contact chip; 15, stop sheet; 16, stop position.
Embodiment
Below, in conjunction with the accompanying drawings, introduce embodiment of the present utility model.
Embodiment one and embodiment two
Fig. 1 is embodiment one of the present utility model, and Fig. 2 is embodiment two of the present utility model, and the gear location structure of this two embodiment is identical, and one of difference: embodiment establishes a body and a corresponding with it cover coding circuit contact chip, in addition, and no stop structure; Embodiment two is provided with two bodies and two corresponding with it cover coding circuit contact chips, and is shaped on the stop structure.In conjunction with Fig. 1 and Fig. 2, introduce embodiment one and embodiment two in the lump.
As shown in Figures 1 and 2, a kind of rotary encoder of the utility model comprises:
Collar 3 is stuck in the rotating shaft 1, makes rotating shaft 1 be positioned axle sleeve 2 up and down, allows rotating shaft 1 is unlikely deviates from;
At least one rotor 6, described rotor 6 is round table-like, and heart position is shaped on the axis hole of break-through up and down therein, so that allow rotating shaft 2 pass from top to bottom, and described rotor 6 is rotated with rotating shaft 1; Described rotor 6 is installed in the pit of axle sleeve 2 or in the pit of body 7;
At least one body 7 and at least one cover coding circuit contact chip 14 corresponding with described body 7, being shaped on through hole on the described body 7 passes through from top to bottom by rotating shaft 1, be shaped on pit around its through hole on the end face of described body 7, on described body 7, moulding brush 8 is arranged, the bottom surface that one end of brush 8 exposes the pit of described body 7 for the brush pawl, the other end of brush 8 be connected with an end of terminal 9 or global formation after plastic in described body 7, the other end of terminal 9 stretches out from described body 7; Described coding circuit contact chip 14 plastic in or be printed on the described rotor 6 and it is surface exposed in the bottom surface of described rotor 6, described rotor 6 is from the heavy pit of being located at described body 7 in the top of described body 7, the brush pawl of brush 8 contacts with described coding circuit contact chip 14 on the described rotor 6 that rotates with rotating shaft 1, from terminal 9 outupt coded signals;
Also comprise the gear location structure;
Described gear location structure is included in the positioning convex 21 that is shaped on a plurality of cylindricalitys on the sidewall of pit cylindraceous of axle sleeve 2 bottom surfaces, the length direction of positioning convex 21 is an above-below direction, the direction that positioning convex 21 protrudes is pointed to the center of circle of pit xsect, and positioning convex 21 each intervals are uniformly distributed in whole circle on the pit sidewall to form gear; On the sidewall of the described rotor 6 that is installed on axle sleeve 2 bottom surfaces and at the two ends of a diameter of this rotor 6, formulate a hole 11, position along opening respectively on the direction of this diameter, installing and locating volute spring 12 separately in hole, two described location 11, go back installing and locating pearl 13 in hole, two described location 11 separately, the outer end of volute spring 12 and positioning bead 13 offset; When being installed in setting screw bullet 12 in the hole, described location 11 and positioning bead 13 together be installed on axle sleeve 2 bottom surfaces with this rotor 6 the pit, the depression that positioning convex 21 on positioning bead 13 and the axle sleeve 2 bottom surface pit sidewalls or positioning convex are 21 offsets, and the gear location that is recessed to form that the positioning convex on positioning bead 13 and the axle sleeve 2 bottom surface pit sidewalls is 21 contacts; Each gear, terminal 9 correspondences from described body 7 are exported coded signals; This rotor 6 rotates with rotating shaft 1, and positioning bead 13 is located thereupon next depression that falls into 21 of positioning convex on the axle sleeve 2 bottom surface pit sidewalls.
Described axle sleeve 2 usefulness metal materials are made.
Described positioning bead 13 usefulness steel are made.
Described spacer 5 is the spacer of metal material.
Described stop structure comprises A stop sheet 15 and B stop position 16; A stop sheet 15 is arranged on the axial wall of rotating shaft 1 or is socketed in the rotating shaft 1, or is arranged at rotor 6 tops, and A stop sheet 15 is fixed with rotating shaft 1 global formation or socket, or one-body molded with rotor 6; B stop position 16 be arranged at go up on the hole wall of axis hole upper end of axle sleeve 2 or the location hole wall of its bottom surface pit on, B stop position 16 and axle sleeve 2 global formations; The position corresponding matching of A stop sheet 15 and B stop position 16 forms the angle less than 360 °.
In addition, be shaped on external thread on the axle sleeve 2, be convenient to be installed in the panel or other position that are used device; Difformity is made in the upper end of rotating shaft 1, is convenient to install knob.
Embodiment three and embodiment four
Fig. 3 is embodiment three of the present utility model, and Fig. 4 is embodiment four of the present utility model, and the gear location structure of this two embodiment is identical, and three of difference: embodiment establish a body and a corresponding with it cover coding circuit contact chip, do not have the stop structure in addition; Embodiment four is provided with two bodies and two corresponding with it cover coding circuit contact chips, and is shaped on the stop structure.In conjunction with Fig. 3 and Fig. 4, introduce embodiment three and embodiment four in the lump.
As shown in Figures 3 and 4, a kind of rotary encoder of the utility model comprises:
Rotating shaft 1, the end of rotating shaft 1 are that the lower end is flat-shaped axle;
Collar 3 is stuck in the rotating shaft, makes rotating shaft be positioned axle sleeve up and down, allows rotating shaft is unlikely deviates from;
At least one rotor 6, described rotor 6 is round table-like, and heart position is shaped on the flat axis hole of break-through up and down therein, so that allow rotating shaft 2 pass from top to bottom, and described rotor 6 is rotated with rotating shaft 1; Described rotor 6 is installed in the pit of axle sleeve 2 or in the pit of body 7;
At least one body 7 and at least one cover coding circuit contact chip 14 corresponding with described body 7, being shaped on through hole on the described body 7 passes through from top to bottom by rotating shaft 1, be shaped on pit around its through hole on the end face of described body 7, on described body 7, moulding brush 8 is arranged, the bottom surface that one end of brush 8 exposes the pit of described body 7 for the brush pawl, the other end of brush 8 be connected with an end of terminal 9 or global formation after plastic in described body 7, the other end of terminal 9 stretches out from described body 7; Described coding circuit contact chip 14 plastic in or be printed on the described rotor 6 and it is surface exposed in the bottom surface of described rotor 6, described rotor 6 is from the heavy pit of being located at described body 7 in the top of described body 7, the brush pawl of brush 8 contacts with described coding circuit contact chip 14 on the described rotor 6 that rotates with rotating shaft 1, from terminal 9 outupt coded signals;
Also comprise the gear location structure;
Described gear location structure comprises Location resilient piece 4 and spacer 5, the Location resilient piece 4 fastening pits that are installed on axle sleeve 2 bottom surfaces, Location resilient piece 4 is circular, and rotating shaft 1 is passed from the center of Location resilient piece 4 from top to bottom, the one or both ends of diameter compacting location protruding 41 on Location resilient piece 4; Spacer 5 is circular, the centre of spacer 5 has through hole, spacer 5 pastes and is fastened on the end face of the described rotor 6 that is arranged at axle sleeve 2 bottom surface pits mutually, drive a plurality of pilot holes 51 of system around its through hole on spacer 5, described pilot hole 51 each intervals are uniformly distributed in the whole circle of spacer 5 to form gear; When this rotor of installing and locating sheet 5 is arranged at the pit of axle sleeve 2 bottom surfaces, paste mutually with the Location resilient piece 4 that is anchored on axle sleeve 2 bottom surface pits from the below, the location on the Location resilient piece 4 protruding 41 is located with the pilot hole 51 formation gears on the spacer 5 and is contacted; Each gear, terminal 9 correspondences from described body 7 are exported coded signals; This rotor 6 rotates with rotating shaft 1, locatees protruding 41 and rotates with respect to spacer 5, locatees protruding 41 and locatees thereupon falling into next pilot hole 51.
Described axle sleeve 2 usefulness metal materials are made.
Described positioning bead 13 usefulness steel are made.
Described spacer 5 is the spacer of metal material.
Described stop structure comprises A stop sheet 15 and B stop position 16; A stop sheet 15 is arranged on the axial wall of rotating shaft 1 or is socketed in the rotating shaft 1, or is arranged at rotor 6 tops, and A stop sheet 15 is fixed with rotating shaft 1 global formation or socket, or one-body molded with rotor 6; B stop position 16 be arranged at go up on the hole wall of axis hole upper end of axle sleeve 2 or the location hole wall of its bottom surface pit on, B stop position 16 and axle sleeve 2 global formations; The position corresponding matching of A stop sheet 15 and B stop position 16 forms the angle less than 360 °.
In addition, be shaped on external thread on the axle sleeve 2, be convenient to be installed in the panel or other position that are used device; Difformity is made in the upper end of rotating shaft 1, is convenient to install knob.
The above only is preferred embodiment of the present utility model, is not that technical scope of the present utility model is imposed any restrictions.The technician of the industry, under the inspiration of the technical program, can make some distortion and revise, as concrete structure of brush 8, coding circuit contact chip 14 etc., every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model above any modification, equivalent variations and modification that embodiment did.
Claims (5)
1. rotary encoder comprises:
Rotating shaft (1);
Axle sleeve (2) is shaped on the axis hole of break-through up and down, so that allow rotating shaft (1) pass from top to bottom on the axle sleeve (2); The bottom surface of axle sleeve (2) is shaped on pit cylindraceous;
Collar (3) is stuck in the rotating shaft (1), makes rotating shaft (1) be positioned axle sleeve (2) up and down;
At least one rotor (6), described rotor (6) is round table-like, and heart position is shaped on the axis hole of break-through up and down therein, so that allow rotating shaft (2) pass from top to bottom, and described rotor (6) is rotated with rotating shaft (1); Described rotor (6) is installed in the pit of axle sleeve (2) or in the pit of body (7);
At least one body (7) and at least one cover coding circuit contact chip (14) corresponding with described body (7), being shaped on through hole on the described body (7) passes through from top to bottom by rotating shaft (1), be shaped on pit around its through hole on the end face of described body (7), the brush (8) that moulding is arranged on described body (7), the bottom surface that one end of brush (8) exposes the pit of described body (7) for the brush pawl, the other end of brush (8) be connected with an end of terminal (9) or global formation after plastic in described body (7), the other end of terminal (9) stretches out from described body (7); Described coding circuit contact chip (14) plastic in or be printed in that described rotor (6) is gone up and it is surface exposed in the bottom surface of described rotor (6), described rotor (6) is from the heavy pit of being located at described body (7) in the top of described body (7), the brush pawl of brush (8) contacts with described coding circuit contact chip (14) on the described rotor (6) that rotates with rotating shaft (1), from terminal (9) outupt coded signal;
Support (10);
Also comprise the gear location structure;
It is characterized in that: described gear location structure is included in the positioning convex (21) that is shaped on a plurality of cylindricalitys on the sidewall of pit cylindraceous of axle sleeve (2) bottom surface, the length direction of positioning convex (21) is an above-below direction, the direction that positioning convex (21) protrudes is pointed to the center of circle of pit xsect, and positioning convex (21) each interval is uniformly distributed in whole circle on the pit sidewall to form gear; On the sidewall of the described rotor (6) that is installed on axle sleeve (2) bottom surface and at the two ends of the diameter of this rotor (6), formulate a hole (11), position along opening respectively on the direction of this diameter, installing and locating volute spring (12) separately in hole, two described location (11), go back installing and locating pearl (13) in hole, two described location (11) separately, the outer end of volute spring (12) and positioning bead (13) offset; When being installed in setting screw bullet (12) in the hole, described location (11) and positioning bead (13) together be installed on axle sleeve (2) bottom surface with this rotor (6) the pit, positioning convex (21) on positioning bead (13) and axle sleeve (2) the bottom surface pit sidewall or the depression between positioning convex (21) offset, and the gear location that is recessed to form between the positioning convex (21) on positioning bead (13) and axle sleeve (2) the bottom surface pit sidewall contacts;
Perhaps, described gear location structure comprises Location resilient piece (4) and spacer (5), the fastening pit that is installed on axle sleeve (2) bottom surface of Location resilient piece (4), Location resilient piece (4) is circular, rotating shaft (1) is passed from the center of Location resilient piece (4) from top to bottom, in the compacting location, one or both ends protruding (41) of the last diameter of Location resilient piece (4); Spacer (5) is circular, the centre of spacer (5) has through hole, spacer (5) pastes and is fastened on the end face of the described rotor (6) that is arranged at axle sleeve (2) bottom surface pit mutually, upward drive system a plurality of pilot holes (51) around its through hole at spacer (5), described pilot hole (51) each interval is uniformly distributed in the whole circle of spacer (5) to form gear; When this rotor of installing and locating sheet (5) is arranged at the pit of axle sleeve (2) bottom surface, paste mutually with the Location resilient piece (4) that is anchored on axle sleeve (2) bottom surface pit from the below, the location on the Location resilient piece (4) protruding (41) are located with pilot hole (51) the formation gear on the spacer (5) and are contacted.
2. a kind of rotary encoder according to claim 1 is characterized in that: described axle sleeve (2) is made of metal material.
3. a kind of rotary encoder according to claim 1 is characterized in that: described positioning bead (13) is made of steel.
4. a kind of rotary encoder according to claim 1 is characterized in that: described spacer (5) is a metal material.
5. a kind of rotary encoder according to claim 1 is characterized in that: perhaps be shaped on the stop structure, described stop structure comprises stop sheet (15) and stop position (16); Stop sheet (15) is arranged on the axial wall of rotating shaft (1) or is socketed on rotating shaft (1), or is arranged at rotor (6) top, and stop sheet (15) and rotating shaft (1) or rotor (6) global formation or cover are by fixing; Stop position (16) is arranged on the hole wall of axis hole upper end of axle sleeve (2) or on the location hole wall of its bottom surface pit, stop position (16) and axle sleeve (2) global formation; The position corresponding matching of stop sheet (15) and stop position (16) forms the angle less than 360 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201151186U CN201731888U (en) | 2010-02-08 | 2010-02-08 | Rotary encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201151186U CN201731888U (en) | 2010-02-08 | 2010-02-08 | Rotary encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201731888U true CN201731888U (en) | 2011-02-02 |
Family
ID=43523046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201151186U Expired - Lifetime CN201731888U (en) | 2010-02-08 | 2010-02-08 | Rotary encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201731888U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820159A (en) * | 2012-09-11 | 2012-12-12 | 东莞市林积为实业投资有限公司 | Encoder base and encoder using same |
| CN103196468A (en) * | 2013-03-27 | 2013-07-10 | 东莞市长泰尔电子有限公司 | Novel structural encoder |
| CN105773262A (en) * | 2015-01-14 | 2016-07-20 | 圣杰国际股份有限公司 | High-speed Door Type Machining Center Machine |
-
2010
- 2010-02-08 CN CN2010201151186U patent/CN201731888U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820159A (en) * | 2012-09-11 | 2012-12-12 | 东莞市林积为实业投资有限公司 | Encoder base and encoder using same |
| CN102820159B (en) * | 2012-09-11 | 2015-05-20 | 东莞市林积为实业投资有限公司 | Encoder base and encoder using same |
| CN103196468A (en) * | 2013-03-27 | 2013-07-10 | 东莞市长泰尔电子有限公司 | Novel structural encoder |
| CN103196468B (en) * | 2013-03-27 | 2015-10-28 | 东莞市长泰尔电子有限公司 | Novel structural encoder |
| CN105773262A (en) * | 2015-01-14 | 2016-07-20 | 圣杰国际股份有限公司 | High-speed Door Type Machining Center Machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110202 |