CN220956461U - Bearing member, developing cartridge, and printer - Google Patents

Bearing member, developing cartridge, and printer Download PDF

Info

Publication number
CN220956461U
CN220956461U CN202322223711.2U CN202322223711U CN220956461U CN 220956461 U CN220956461 U CN 220956461U CN 202322223711 U CN202322223711 U CN 202322223711U CN 220956461 U CN220956461 U CN 220956461U
Authority
CN
China
Prior art keywords
guide
face
guiding
bearing member
printer
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.)
Active
Application number
CN202322223711.2U
Other languages
Chinese (zh)
Inventor
黄景宏
岳锐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Topjet Technology Co ltd
Original Assignee
Topjet Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Topjet Technology Co ltd filed Critical Topjet Technology Co ltd
Application granted granted Critical
Publication of CN220956461U publication Critical patent/CN220956461U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865Arrangements for supplying new developer
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1642Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
    • G03G21/1647Mechanical connection means
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1661Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
    • G03G21/1676Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the developer unit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrophotography Configuration And Component (AREA)

Abstract

The utility model discloses a bearing component for solving the problems that the existing bearing component on a developing box is easy to interfere and inconvenient to operate when a printer is in butt joint installation, which comprises a body, wherein the body is provided with an end face which is parallel to the X1 direction; the guide structure is provided with a guide surface, the guide structure is arranged on the body, the guide surface is inclined to the end face, and the guide surface is used for guiding the connecting guide piece. By using the bearing component, the guide structure is arranged in the body, the guide structure is provided with the guide surface inclined to the end surface of the body, the connecting guide piece is firstly contacted with the guide surface on the guide structure, the guide surface plays a role in guiding and yielding for the connecting guide piece, the collision interference between the front section of the connecting guide piece and the body can be effectively avoided, the connecting guide piece is correctly guided to enter along the guide structure, the installation process of the developing box is simple and convenient, and the process of visual alignment and repeated insertion in advance is not needed.

Description

Bearing member, developing cartridge, and printer
Technical Field
The utility model relates to the technical field of printing equipment, in particular to a bearing component, a developing box and a printer.
Background
The developing cartridge is a consumable part widely used in image forming apparatuses such as laser printers/copiers, and the image forming apparatus prompts a user to replace a new developing cartridge when the developer in the developing cartridge is used up.
The connecting guide piece in the printing equipment is contacted with the coupling piece through the groove in the bearing component, so that the coupling piece is limited, the connecting guide piece and the groove are easy to interfere with each other in the actual operation process, the developing box cannot normally fall off, the developing box is often required to be taken out to be assembled after being aligned again, the matching position of the connecting guide piece and the groove cannot be observed, the alignment can be carried out only by visual in advance, and the use and the installation are quite inconvenient.
Disclosure of utility model
The utility model provides a bearing component, which aims to at least solve one of the technical problems in the prior art.
A first aspect of the present utility model relates to a bearing member for a developing cartridge provided in a printer provided with a connection guide, a direction in which the developing cartridge is loaded into the printer being set to an X1 direction, characterized by further comprising:
the body is provided with an end face, and the end face is parallel to the X1 direction;
The guide structure is provided with a guide surface, the guide structure is arranged on the body, the guide surface is inclined to the end surface, and the guide surface is used for guiding the connecting guide piece
Further, the guide structure is configured as a groove, the groove is formed in the end face, the groove is composed of a guide surface, a first surface and a second surface, the first surface and the second surface are perpendicular to the guide surface, the first surface and the second surface are parallel to each other and perpendicular to the end face, the guide surface is inclined to the end face, and the guide surface is used for guiding the connecting guide piece.
Further, one end of the guide surface, which is close to the middle part of the body, is a first end, one end of the guide surface, which is far away from the middle part of the body, is a second end, the guide surface is gradually far away from the end surface from the first end to the second end, and the distance direction is the direction towards the other side of the body.
Further, the first face is connected with an inclined face inclined toward a direction away from the second face, the inclined face being for guiding the connection guide to move along the groove.
Further, the guide structure is a spring plate, the guide surface is arranged above the spring plate, and one end of the spring plate is movably connected with the body.
Further, the elastic sheet and the body are integrally formed.
Further, the side end of the elastic sheet is hinged to the body, and a torsion spring is arranged at the hinged position of the elastic sheet and the body.
Further, the other end of the elastic sheet is provided with a guide cambered surface.
Technical solution a second aspect of the present utility model relates to a developing cartridge including the bearing member of the first aspect.
A third aspect of the present utility model relates to a printer including the developing cartridge of the second aspect.
The beneficial effects of the utility model are as follows.
1. Through setting up guide structure in the body, and be equipped with the guide surface of the terminal surface of slope in the body on the guide structure, when loading into the printer with the developer cartridge that is provided with the bearing member of this guide structure, the guide surface on the guide structure is contacted at first to the connection guide piece in the printer, the guide surface of slope plays the effect of direction and stepping down for the connection guide piece this moment, can effectively avoid the anterior segment of connection guide piece to collide the problem of interference with the body, can correctly guide the connection guide piece and get into along guide structure to contact with the coupling piece, make the installation simple and convenient of developer cartridge, do not need to carry out the process of visual alignment in advance and repeated cartridge again.
Drawings
FIG. 1 is an overall schematic of a bearing component of an embodiment of the present utility model;
FIG. 2 is a top view of a bearing member of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view at A-A of the bearing member shown in FIG. 2;
fig. 4 is an overall schematic of a developing cartridge of an embodiment of the present utility model;
fig. 5 is an overall schematic of a bearing member of another embodiment of the utility model.
Reference numerals:
body 100, end face 110, third face 120, fourth face 130, mounting hole 140, mounting shaft 150;
Groove 200, first face 210, inclined face 211, second face 220, guide face 230, first end 231, second end 232;
spring 300, guide arcuate surface 310.
Detailed Description
The following description will describe several embodiments of the present utility model, including the embodiments corresponding to the accompanying drawings, it being understood that the drawings are for aiding in the understanding of the technical features and technical solutions of the present utility model, and should not be construed as limiting the scope of the present utility model.
The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
It should be noted that, unless explicitly defined otherwise, when a feature is referred to as being "fixed," "connected," "mounted," or "disposed" on another feature, it may be directly "fixed," "connected," "mounted," or "disposed" on another feature, or may be indirectly "fixed," "connected," "mounted," or "disposed" on another feature, it being understood that the words "fixed," "connected," "mounted," or "disposed" are to be interpreted broadly, and that one skilled in the art may reasonably ascertain the specific meaning of the above words in this disclosure, in connection with the specific contents of the technical solutions.
It should be noted that, the description of the orientation or positional relationship indicated by the upper, lower, left, right, top, bottom, front, rear, inner, outer, etc. used in the present utility model is based on the orientation or positional relationship of the drawings or the embodiments, only for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus should not be construed as limiting the present utility model.
It is noted that the term "and/or" as used in the present utility model includes any combination of one or more of the listed items, meaning one or more, meaning at least two, greater than, less than, exceeding, etc. are understood to exclude this number, and the above, below, within, etc. are understood to include this number.
It should be noted that, if the first and second descriptions are only used for distinguishing technical features in the present utility model, the description should not be construed as indicating or implying relative importance or implying the number of the indicated technical features or implying the precedence relationship of the indicated technical features.
It is to be understood that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art unless explicitly defined otherwise. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1 to 3 and 5, according to a first aspect of the present utility model, a bearing member for a developing cartridge provided in a printer, the bearing member being assembled on the developing cartridge, and the bearing member being provided with a mounting hole 140, a coupling member being penetrated in the mounting hole 140 for driving a photosensitive drum to rotate by a driving device on the printer through the coupling member after being connected with a connection guide on the printer, a direction in which the developing cartridge is loaded into the printer being set to an X1 direction, the bearing member comprising a body 100 provided with an end face 110, the end face 110 being parallel to the X1 direction, a guide structure being provided on the body, a guide surface 230 being provided on the guide structure, the guide surface 230 being provided obliquely to the end face 110, and the guide surface 230 being for guiding the connection guide.
The bearing member applying the above embodiment has the following beneficial effects: through setting up guide structure in the body, and be equipped with the guide face 230 of the terminal surface 110 of slope in body 100 on the guide structure, when loading into the printer with the developing cartridge that is provided with the bearing member of this guide structure, the guide face 230 on the guide structure is contacted at first to the connection guide piece in the printer, the guide face 230 of slope plays the effect of direction and stepping down for the connection guide piece this moment, can effectively avoid the anterior segment of connection guide piece and the problem of body 100 collision interference, can correctly guide the connection guide piece get into along guide structure, and contact with the coupling piece, make the installation simple and convenient of developing cartridge, do not need to carry out the visual alignment in advance and the process of plug-in components again.
According to some embodiments of the present utility model, referring to fig. 1 to 3, a groove 200 is provided on the end surface 110 of the body 100, the groove 200 is composed of a guide surface 230 and a first surface 210 and a second surface 220, the first surface 210 and the second surface 220 are perpendicular to the guide surface 230, the first surface 210 and the second surface 220 are parallel to each other and are perpendicular to the end surface 110, the guide surface 230 is disposed inclined to the end surface 110, and the guide surface 230 is used for guiding the connection guide.
The bearing member with the structure is characterized in that the first surface 210, the second surface 220 and the guide surface form the groove 200 on the end surface 110 of the main body 100, the guide surface 230 is inclined to the end surface 110, when the developing cartridge with the bearing member is installed in the printer, the connecting guide piece in the printer is firstly contacted with the groove 200, and the inclined guide surface 230 plays a role in guiding and abdicating the connecting guide piece at the moment, so that the problem of collision interference between the front section of the connecting guide structure and the end part of the groove 200 can be effectively avoided, the connecting guide structure can be correctly guided to enter along the groove 200 and be contacted with the coupling piece, the installation process of the developing cartridge is simple and convenient, and the process of visual alignment in advance and repeated insertion is not needed.
According to some embodiments of the present utility model, referring to fig. 1 to 3, an end of the guide surface 230 near the middle of the body 100 is a first end 231, an end far from the middle of the body 100 is a second end 232, the guide surface 230 gradually moves away from the end surface 110 from the first end 231 toward the second end 232, and the moving away direction is a direction toward the other side of the body 100, it is understood that the guide surface 230 is not parallel to the end surface 110, and the two directions are at a certain included angle, and the moving away direction can be understood as: the end face 110 of the body 100 is a front face, the opposite face is a back face, and the second end 232 extends in a direction toward the back face.
In the above embodiment, referring to fig. 3, the first end 231 is located below the end surface 110, and the second end 232 is further away from the end surface 110 than the first end 231, that is, the guide surface 230 shown in fig. 3 is inclined downward from the first end 231 to the second end 232 from left to right.
In addition to the above embodiment, the first end 231 may be disposed at the end surface 110, that is, the first end 231 of the guide surface 230 is directly connected to the end surface 110, and the second end 232 is located below the end surface 110 to form the inclined groove 200.
According to some embodiments of the present utility model, referring to fig. 1, the first surface 210 is connected with the inclined surface 211, the inclined surface 211 is inclined towards a direction away from the second surface 220, the inclined surface 211 is used for guiding the connection guide to move along the groove 200, during the installation process, the guiding surface 230 can play a role in guiding the connection guide in a direction vertical to the X1 direction, and the inclined surface 211 can play a role in guiding the connection guide in a direction further vertical to the X1 direction, so that the connection guide can be sufficiently guided, interference is further avoided, and further guiding is further performed, so that the installation process is easier and more convenient.
According to some embodiments of the present utility model, referring to fig. 1 to 3, the device further includes a third surface 120, the third surface 120 is perpendicular to the first surface 210 and the second surface 220, one end of the third surface 120 is connected to the end surface 110, the third surface 120 is disposed inclined to the end surface 110, the second end 232 is farther from the end surface 110 than the other end of the third surface 120, and the third surface 120 can reduce the volume of the body 100 and can also perform guiding function during the installation process.
According to some embodiments of the present utility model, referring to fig. 1 to 3, the printer further includes a fourth surface 130, two ends of the fourth surface 130 are respectively connected to the other end of the third surface 120 and the second end 232, an inclined surface 211 of the fourth surface 130 with respect to the end surface 110 is greater than an inclined surface 211 of the third surface 120 with respect to the end surface 110, the fourth surface 130 is configured as an arc-shaped section, the fourth surface 130 can reduce the volume of the body 100 and can perform a pilot guiding function, and the third surface 120 and the fourth surface 130 can be configured to reduce an acute angle portion of the body 100, so that the edge portion of the body 100 has better structural strength, and since the portion is configured to be in butt-joint with the printer, collision is easy to occur, and chipping damage caused by collision can be effectively reduced.
According to some embodiments of the present utility model, referring to fig. 5, the guiding structure is set as a spring plate 300, one end of the spring plate 300 is movably connected to the body 100, the other end of the spring plate 300 is movable, the upper end surface of the spring plate 300 is set as a guiding surface 230, the connection guiding member first contacts the guiding surface 230 of the spring plate 300 and presses down the other end of the spring plate 300, the other end of the spring plate 300 generates elastic potential energy of rebound, and forms a reverse acting force on the connection guiding member, in the process, the connection guiding member is dynamically guided, so as to ensure that the connection guiding member enters into a correct coupling position.
In the above example, the elastic sheet 300 and the body 100 are integrally formed, and are all made of elastic plastic, so that the integrally formed injection structure is convenient to process, and meanwhile, the integrally replaced elastic sheet can be integrally replaced in the maintenance process, and the assembly and subsequent maintenance operation are simple and convenient.
In the above embodiment, the elastic sheet 300 may be detachably connected with the body 100, one end of the elastic sheet 300 is hinged to the body 100, the other end of the elastic sheet may rotate along the hinge, and a torsion spring may be disposed at the hinge, so that the elastic sheet 300 may rebound to achieve the same effects as described above.
In addition to the above embodiment, the side end of the elastic sheet 300 may be hinged to the body 100, and a torsion spring is provided at the hinge, where the torsion spring keeps the end of the elastic sheet 300, which is far from the center of the body 100, in a low position all the time, and the end, which is close to the center of the body 100, in a high position, may also serve as a guide for the connection guide, and in this embodiment and the above embodiment, the elastic sheet 300 always keeps a tendency of springback, and the end of the elastic sheet 300, which is close to the center of the body 100, always keeps a tendency of upward movement, and this end may play a role of pressing the connection guide, so that the coupling of the connection guide is firmer.
In the above embodiment, the other end of the elastic sheet 300 is provided with the guiding cambered surface 310, it can be understood that the other end of the elastic sheet 300 refers to the end of the elastic sheet 300 near the center of the body 100, the guiding cambered surface 310 can play a guiding role when the connection guiding member is decoupled, and meanwhile, the cambered surface structure can ensure that the connection guiding member is not damaged by scratch of the sharp part when the connection guiding member is decoupled, so as to ensure the integrity of the connection guiding member.
According to some embodiments of the present utility model, referring to fig. 1 and 3, the middle portion of the body 100 is provided with a mounting hole 140 allowing the coupling member to pass therethrough, and the groove 200 extends from the mounting hole 140 toward the outside of the body 100, i.e., the groove 200 forms a relief passage for the entry of the coupling member.
According to some embodiments of the present utility model, referring to fig. 1 and 3, a side of the body 100 remote from the end surface 110, i.e., a reverse side of the body 100, is provided with a mounting shaft 150 for connecting gears.
A developing cartridge according to a second aspect of the present utility model, referring to fig. 4, has the bearing member of the first aspect described above.
A printer according to a third aspect of the present utility model has the developing cartridge of the second aspect described above.
The above embodiments are mainly used for printers, but should not be construed as being applicable to printers, and may be applied to various types of printing apparatuses, photocopying apparatuses, electronic imaging apparatuses, and the like.
It is noted that terms like "one embodiment," "some embodiments," "base embodiments," "extended embodiments," and the like may be used throughout this specification to describe several embodiments of the utility model, as a particular feature, structure, material, or characteristic of the several embodiments may be combined without departing from the principles and spirit of the present utility model.
While there has been shown and described what is considered to be certain embodiments of the present utility model, it is to be understood that the utility model is not limited to the above-described embodiments, but is to be accorded the widest scope consistent with the principles and novel features of the present utility model.

Claims (10)

1. A bearing member for a developing cartridge provided in a printer provided with a connection guide, the direction in which the developing cartridge is loaded into the printer being set to an X1 direction, characterized by further comprising:
the body is provided with an end face, and the end face is parallel to the X1 direction;
The guide structure is provided with a guide surface, the guide structure is arranged on the body, the guide surface is inclined to the end surface, and the guide surface is used for guiding the connecting guide piece.
2. A bearing component according to claim 1, wherein the guide structure is provided as a groove provided in the end face, the groove being formed by the guide face and first and second faces, both perpendicular to the guide face, the first and second faces being parallel to each other and perpendicular to the end face, the guide face being provided obliquely to the end face, the guide face being adapted to guide the connecting guide.
3. A bearing member according to claim 2, wherein the end of the guide surface adjacent the central portion of the body is a first end and the end distal from the central portion of the body is a second end, the guide surface gradually being distal from the end surface from the first end toward the second end and in a direction toward the other side of the body.
4. A bearing member according to claim 2, wherein an inclined surface is connected to the first face, the inclined surface being inclined in a direction away from the second face, the inclined surface being for guiding the connection guide to move along the groove.
5. A bearing member according to claim 1, wherein the guiding structure is a spring, the guiding surface is disposed above the spring, and one end of the spring is movably connected to the body.
6. A bearing component according to claim 5, wherein the spring is an integral part of the body.
7. A bearing member according to claim 5, wherein the lateral ends of the spring are hinged to the body, and a torsion spring is provided at the hinge of the spring to the body.
8. A bearing member according to any one of claims 5 to 7, wherein the other end of the spring is provided with a guiding arcuate surface.
9. A developing cartridge comprising the bearing member according to any one of claims 1 to 8.
10. A printer comprising the developing cartridge of claim 9.
CN202322223711.2U 2023-06-05 2023-08-18 Bearing member, developing cartridge, and printer Active CN220956461U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202321405840 2023-06-05
CN2023214058407 2023-06-05

Publications (1)

Publication Number Publication Date
CN220956461U true CN220956461U (en) 2024-05-14

Family

ID=88447569

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202322223711.2U Active CN220956461U (en) 2023-06-05 2023-08-18 Bearing member, developing cartridge, and printer
CN202311041950.4A Pending CN116950997A (en) 2023-06-05 2023-08-18 Bearing member, developing cartridge and printer

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202311041950.4A Pending CN116950997A (en) 2023-06-05 2023-08-18 Bearing member, developing cartridge and printer

Country Status (1)

Country Link
CN (2) CN220956461U (en)

Also Published As

Publication number Publication date
CN116950997A (en) 2023-10-27

Similar Documents

Publication Publication Date Title
US7445493B2 (en) Connector for a flexible conductor
US8811025B2 (en) Connector
KR20020000104A (en) Attaching device and method of a computer peripheral apparatus, and recording and/or reproducing device
US11673753B2 (en) Sheet processing apparatus
CN220956461U (en) Bearing member, developing cartridge, and printer
US6926269B2 (en) Paper cassette and paper feeding apparatus
KR20130059280A (en) Connector
JP2005247521A (en) Sheet feeding device
CN219417987U (en) Developing cartridge
EP4428619A1 (en) Process cartridge, process cartridge assembly, and image forming device
EP0880200A2 (en) Card connector
JP2004230803A (en) Recording device
CN107524902B (en) Supporting structure for optical communication equipment and optical communication equipment
US6810562B1 (en) Hinge connection
KR20060007255A (en) Charging holder for portable terminal
JP2013116797A (en) Image forming apparatus
JPH11100151A (en) Manual paper feeding device
JP6197894B2 (en) Image forming apparatus
US9561921B2 (en) Sheet feeding unit and image forming apparatus
CN221913810U (en) Printer with a printer body
CN213122619U (en) Toner cartridge and printer
GB2251134A (en) Ejector-equipped card connector
CN114889727B (en) Front cover installation limiting device for vehicle and front cover assembly
CN219883540U (en) Thermal printer
CN212920838U (en) Thermal printer with cover opening buffer mechanism

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant