CN109537998B - Lock clutch device and lock - Google Patents
Lock clutch device and lock Download PDFInfo
- Publication number
- CN109537998B CN109537998B CN201910084517.6A CN201910084517A CN109537998B CN 109537998 B CN109537998 B CN 109537998B CN 201910084517 A CN201910084517 A CN 201910084517A CN 109537998 B CN109537998 B CN 109537998B
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- Prior art keywords
- bolt
- clutch
- handle
- block
- lock
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B3/00—Fastening knobs or handles to lock or latch parts
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B13/00—Devices preventing the key or the handle or both from being used
- E05B13/005—Disconnecting the handle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention relates to the technical field of locks and discloses a lock clutch device and a lock, wherein the lock clutch device comprises a handle rotating sleeve, a rotating block, a bolt and a clutch, wherein the bolt has an unlocking state and a locking state; one end of the clutch facing the bolt is provided with a limiting surface which is used for pushing the bolt to a plugging station in a locking state from an unlocking state and keeping the bolt in the locking state, and a pulling-out assembly which is used for pulling out the bolt from the locking state to the unlocking state when the bolt is in the plugging station in the locking state. Among the above-mentioned tool to lock clutch, through setting up spacing face and extracting the subassembly and realize the handle and rotate the switching of locking, relieving the locking state between cover and the turning block, and rotate the cover at the handle and rotate the in-process, the bolt slides along spacing face, has avoided the bolt to rotate the in-process and has taken place the dead condition of card to the stability of tool to lock clutch's structure has been improved.
Description
Technical Field
The invention relates to the field of locks, in particular to a lock clutch device and a lock.
Background
The intelligent door lock is unlocked by a key besides a fingerprint and a password, and the key is mainly used for unlocking in two modes of opening holes in the front and the bottom. The front unlocking is simple and convenient, the lock core is directly controlled, and the surface appearance of the lockset is influenced in design. The structure of unblanking is comparatively complicated to the front to the bottom is unblanked, and general design is for linking together back through clutch control bolt handle and activity switching piece, and rotatory handle reaches the purpose of unblanking.
In the prior art, the connection between the door handle and the movable switching block is usually realized by adopting the plug-pull state of the clutch control bolt, the sliding block is arranged on the bolt, the groove-shaped arc guide rail is arranged on the clutch, the sliding block is positioned in the arc guide rail and matched with the arc guide rail, the plug-pull state of the bolt is controlled by the movement of the clutch, and when the door handle rotates with the movable switching block, the sliding block moves back and forth in the arc guide rail, so that the phenomenon of blocking is easy to occur.
Disclosure of Invention
The invention provides a lockset clutch device and a lockset, which realize the switching of locking and unlocking states between a handle rotating sleeve and a rotating block by arranging a limiting surface and a pulling-out assembly, and prevent a bolt from being blocked in the rotating process of the bolt by sliding along the limiting surface in the rotating process of the handle rotating sleeve.
In order to achieve the purpose, the invention provides the following technical scheme:
a tool to lock clutch, includes that handle rotates cover, turning block and clutch assembly, clutch assembly includes bolt and clutch, wherein:
the bolt is provided with an unlocking state and a locking state, and when the bolt is in the unlocking state, the locking between the rotating block and the handle rotating sleeve is released; when the bolt is in a locking state, the rotating block and the handle rotating sleeve are locked, and when the bolt is in the locking state, a plugging station for plugging and unplugging the bolt and a rotating station after the handle rotating sleeve drives the rotating block to rotate are arranged;
one end of the clutch facing the bolt is provided with a limiting surface which is used for pushing the bolt to a plugging station in a locking state from an unlocking state and keeping the bolt in the locking state, and a pulling-out assembly which is used for limiting along the pulling-out direction of the bolt when the bolt is in the plugging station in the locking state so as to pull out the bolt from the locking state to the unlocking state through the clutch.
The lock disengaging device comprises a handle rotating sleeve, a rotating block and a clutch assembly, wherein the clutch assembly comprises a bolt and a clutch, when the bolt is in an unlocking state, the bolt contacts with the rotating block and locks the handle rotating sleeve, when the bolt is converted from the unlocking state to the locking state, a limiting surface is abutted against the bolt and pushes the bolt to the locking state, and at the moment, the bolt is positioned at a plugging station; when the handle rotating sleeve drives the rotating block to rotate, the plug pin is positioned at a rotating station, so that unlocking operation can be realized, and the plug pin is abutted against the limiting surface and slides along the limiting surface in the rotating process of the handle rotating sleeve; when the plug pin rotates from the rotating station to the plugging station, the plug pin is pulled out along the pulling direction of the plug pin by the pulling assembly so as to release the locking between the handle rotating sleeve and the rotating block;
among the above-mentioned tool to lock clutch, realized pushing away the bolt to the lock state by the unlock state through setting up spacing face on the clutch, pulled out the subassembly through the setting and realized that the bolt is pulled out to the unlock state by the lock state, thereby realized the locking between handle rotating sleeve and the turning block, the switching of release lock state, and rotate the cover at the handle and rotate the in-process, the bolt slides along spacing face, avoided the bolt to rotate the dead condition of emergence card among the in-process, thereby improved tool to lock clutch's structural stability and reliability.
Optionally, a protrusion for matching with the limiting surface is arranged on the bolt, and when the clutch moves towards the handle rotating sleeve, the limiting surface matches with the protrusion, so that the bolt is pushed to the locking state from the unlocking state.
Optionally, the pulling-out assembly includes a sliding rod disposed at one end of the plug pin, which is away from the handle rotating sleeve, and the sliding rod extends along a direction away from the handle rotating sleeve, a stopper is disposed at one end of the sliding rod, which is away from the plug pin, and a positioning column matched with the stopper is disposed on one side of the clutch, which faces the plug pin, so that the sliding rod and the clutch move synchronously in a pulling-out direction of the plug pin to pull out the plug pin from a locked state to an unlocked state.
Optionally, the latch is hinged to the sliding bar.
Optionally, a strip-shaped through groove is formed in the sliding rod along the length direction of the sliding rod, and a limiting block used for limiting the rotation angle of the handle rotation sleeve is arranged at the through groove.
Optionally, the limiting block includes a first sub limiting block and a second sub limiting block disposed at one end of the first sub limiting block, the free end of the first sub limiting block passes through the through groove and is connected to the clutch, and the size of the second sub limiting block is greater than the size of the through groove along the length direction perpendicular to the sliding rod.
Optionally, a first through groove is formed in the handle rotating sleeve, a second through groove corresponding to the first through groove is formed in the rotating block, and the bolt is matched with the first through groove and the second through groove to connect the handle rotating sleeve and the rotating block.
Optionally, one end of the handle rotating sleeve, which is away from the rotating block, is provided with a spring stop, and the spring stop is connected with a return spring arranged on the fixed block, so that when the handle rotating sleeve rotates from an initial position to an unlocking position, the return spring generates a restoring force to rotate the handle rotating sleeve back to the initial position.
The invention also provides a lockset, which comprises any lockset clutch device in the technical scheme.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a lock engaging and disengaging device according to the present invention;
FIG. 2 is an exploded view of the lock clutch assembly of the present invention;
FIG. 3 is an assembly view of the lock clutch device of the present invention;
fig. 4 is a schematic structural view of the latch of the lock separation device provided by the present invention when the latch is at the rotation station.
Icon: 1-handle rotating sleeve; 11-a first through slot; 12-a spring stop; 2-turning the block; 21-a second through slot; 3, inserting a pin; 31-a bump; 4-a clutch; 41-a limiting surface; 42-a positioning column; 5-a slide bar; 51-a stopper; 6-a limiting block; 61-a first sub-stopper; 62-a second sub-stopper; and 7, fixing blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described below by combining the accompanying drawings.
Referring to fig. 1 to 4, a lock engaging and disengaging device provided in an embodiment of the present invention includes a handle rotating sleeve 1, a rotating block 2, and a clutch assembly, where the clutch assembly includes a plug pin 3 and a clutch 4, where:
the bolt 3 has an unlocking state and a locking state, and when the bolt 3 is in the unlocking state, the locking between the rotating block 2 and the handle rotating sleeve 1 is released; when the bolt 3 is in a locking state, the handle rotating sleeve 1 is locked and rotated, and when the bolt 3 is in the locking state, a plugging station for plugging and pulling the bolt 3 and a rotating station after the handle rotating sleeve 1 drives the rotating block 2 to rotate are arranged;
one end of the clutch 4 facing the bolt 3 is provided with a limiting surface 41 for pushing the bolt 3 from an unlocking state to a locking state and keeping the bolt 3 in the locking state, and a pulling-out assembly for limiting along the pulling-out direction of the bolt 3 when the bolt 3 is in the locking state at the pulling-out position so as to pull out the bolt 3 from the locking state to the unlocking state through the clutch 4.
The lock disengaging device comprises a handle rotating sleeve 1, a rotating block 2 and a clutch 4 assembly, wherein the clutch 4 assembly comprises a bolt 3 and a clutch 4, when the bolt 3 is in an unlocking state, the bolt contacts the rotating block 2 and locks the handle rotating sleeve 1, when the bolt 3 is converted from the unlocking state to a locking state, a limiting surface 41 is abutted against the bolt 3 and pushes the bolt 3 to the locking state, and at the moment, the bolt 3 is positioned at a plugging station; when the handle rotating sleeve 1 drives the rotating block 2 to rotate, the bolt 3 is positioned at a rotating station, unlocking operation can be realized, and in the rotating process of the handle rotating sleeve 1, the bolt 3 is abutted against the limiting surface 41 and slides along the limiting surface 41; when the plug pin 3 rotates from the rotating station to the plugging station, the plug pin 3 is pulled out by the pulling assembly along the pulling direction of the plug pin 3 so as to release the locking between the handle rotating sleeve 1 and the rotating block 2;
among the above-mentioned tool to lock clutch, realized pushing away bolt 3 to the lock state by the unlock state through set up spacing face 41 on clutch 4, pulled out the subassembly through the setting and realized bolt 3 and pulled out to the unlock state by the lock state, thereby realized the locking between handle rotating sleeve 1 and rotor block 2, the switching of lock state is relieved, and rotate the cover 1 at the handle and rotate the in-process, bolt 3 slides along spacing face 41, avoided bolt 3 to rotate the dead condition of emergence card among the in-process, thereby the stability and the reliability of tool to lock clutch's structure have been improved.
As an embodiment of the latch 3, the latch 3 is provided with a protrusion 31 for engaging with the limiting surface 41, and when the clutch 4 moves toward the handle rotating sleeve 1, the limiting surface 41 engages with the protrusion 31, so that the latch 3 is pushed from the unlocked state to the locked state.
Above-mentioned bolt 3 is last to be equipped with protruding 31, when the turning block 2 and the handle rotate and to overlap 1 between need the locking, clutch 4 is to being close to the handle and rotates the direction motion of cover 1, and simultaneously, protruding 31 on spacing face 41 and the bolt 3 supports and leans on, and push bolt 3 to lock state, thereby realized bolt 3's locking, and through setting up protruding 31 and spacing face 41 cooperation simple structure, avoid taking place the dead phenomenon of card, can effectively improve the stability of device.
As an implementation manner of the above-mentioned pulling-out assembly, the pulling-out assembly includes a sliding rod 5 disposed at one end of the plug pin 3 departing from the handle rotating sleeve 1, and the sliding rod 5 extends along a direction departing from the handle rotating sleeve 1, a stopper 51 is disposed at one end of the sliding rod 5 departing from the plug pin 3, and a positioning column 42 matched with the stopper 51 is disposed at one side of the clutch 4 facing the plug pin 3, so that the sliding rod 5 and the clutch 4 move synchronously in a pulling-out direction of the plug pin 3 to pull out the plug pin 3 from a locked state to an unlocked state.
In the subassembly is extracted to the aforesaid, clutch 4 sets up reference column 42 towards one side of slide bar 5, the free end of slide bar 5 sets up dog 51, when bolt 3 is in the plug station, clutch 4 is to keeping away from the direction motion that handle rotating sleeve 1, at this moment, clutch 4 drives slide bar 5 synchronous motion through reference column 42 and dog 51's cooperation, slide bar 5 is connected with bolt 3, thereby realize the extraction operation to bolt 3, and extract the subassembly structure, the manufacturing difficulty is low, when avoiding the dead phenomenon of card to take place, manufacturing cost has been reduced.
As a connection mode of the bolt 3 and the sliding rod 5, the bolt 3 is fixedly connected with the sliding rod 5, namely the bolt 3 and the sliding rod 5 do not move relatively, and the insertion and the extraction of the bolt 3 and the synchronous rotation of the handle rotating sleeve 1 can be realized.
As another connection mode of the plug pin 3 and the sliding rod 5, the plug pin 3 is hinged to the sliding rod 5, and compared with the fixed connection of the plug pin 3 and the sliding rod 5, when the plug pin 3 is hinged to the sliding rod 5, a space required by the plug pin 3 during switching between a plugging station and a rotating station is small.
As an embodiment of the sliding rod 5, a strip-shaped through groove is formed on the sliding rod 5 along the length direction of the sliding rod 5, and a limiting block 6 for limiting the rotation angle of the handle rotating sleeve 1 is arranged at the through groove.
Above-mentioned slide bar 5 is gone up and is formed the bar and lead to the groove, and sets up stopper 6 leading to groove department, when bolt 3 changes between plug station and rotatory station, leads to the tip of groove towards 5 free ends of slide bar when leaning on with the bar when stopper 6 supports, and handle rotation cover 1 is rotatory to rotation angle's upper limit, so, the accessible changes the length in bar groove and realizes changing the biggest angle of handle pivoted.
Specifically, the limiting block 6 comprises a first sub-limiting block 61 and a second sub-limiting block 62 arranged at one end of the first sub-limiting block 61, the free end of the first sub-limiting block 61 penetrates through the through groove to be connected with the clutch 4, and the size of the second sub-limiting block 62 is larger than that of the through groove along the length direction perpendicular to the sliding rod 5.
Among the above-mentioned stopper, the size of the second sub-stopper 62 along the length direction perpendicular to the sliding rod 5 is greater than the size of the through groove, that is, in the direction perpendicular to the plane of the clutch 4, the position of the sliding rod 5 is limited, so as to prevent the sliding rod 5 from deviating in position during the rotation process, which causes the damage of the lock.
As an embodiment of the handle rotating sleeve 1, a first through groove 11 is formed on the handle rotating sleeve 1, a second through groove 21 corresponding to the first through groove 11 is formed on the rotating block 2, and the bolt 3 is matched with the first through groove 11 and the second through groove 21 to connect the handle rotating sleeve 1 and the rotating block 2.
When bolt 3 is in the lock-out state, the cooperation of logical groove 21 is led to bolt 3 and first logical groove 11 and second, so that turning block 2 rotates cover 1 cooperation with the handle, when rotating handle and rotating cover 1, turning block 2 can rotate in step, in order to realize the operation of unblanking, when bolt 3 is in the unlock state, bolt 3 all not lead to the groove 21 cooperation with first logical groove 11 and second, handle rotates cover 1 and the locking of turning block 2 contact this moment, when rotating handle and rotating cover 1, turning block 2 does not rotate.
As an embodiment of the above-mentioned handle rotating sleeve 1, a spring stop 12 is disposed at an end of the handle rotating sleeve 1 away from the rotating block 2, and the spring stop 12 is connected to a return spring disposed on the fixing block 7, so that when the handle rotating sleeve 1 rotates from the initial position to the unlocking position, the return spring generates a restoring force to rotate the handle rotating sleeve 1 back to the initial position.
In the above embodiment, the spring stopper 12 in the handle rotation sleeve 1 is connected to the return spring, so that when the operator rotates the handle, the handle rotation sleeve 1 rotates, and when the operator removes the force, the handle rotation sleeve 1 returns to the original position, so that the handle automatically returns to the original position.
The embodiment of the invention also provides a lockset, which comprises any one lockset clutch device in the embodiment.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The utility model provides a tool to lock clutch which characterized in that, includes that the handle rotates cover, turning block and clutch assembly, clutch assembly includes bolt and clutch, wherein:
the bolt is provided with an unlocking state and a locking state, and when the bolt is in the unlocking state, the locking between the rotating block and the handle rotating sleeve is released; when the bolt is in a locking state, the rotating block and the handle rotating sleeve are locked, and when the bolt is in the locking state, a plugging station for plugging and unplugging the bolt and a rotating station after the handle rotating sleeve drives the rotating block to rotate are arranged;
one end of the clutch facing the bolt is provided with a limiting surface which is used for pushing the bolt to a plugging station in a locking state from an unlocking state and keeping the bolt in the locking state, and a pulling-out assembly which is used for limiting along the pulling-out direction of the bolt when the bolt is in the plugging station in the locking state so as to pull out the bolt from the locking state to the unlocking state through the clutch;
the bolt is provided with a bulge which is used for being matched with the limiting surface, and when the clutch moves towards the handle rotating sleeve, the limiting surface is matched with the bulge, so that the bolt is pushed to a locking state from an unlocking state;
the pulling-out assembly comprises a sliding rod arranged at one end, deviating from the handle rotating sleeve, of the bolt, the sliding rod extends along the direction deviating from the handle rotating sleeve, a stop block is arranged at one end, deviating from the bolt, of the sliding rod, and a positioning column matched with the stop block is arranged on one side, facing the bolt, of the clutch, so that the sliding rod and the clutch synchronously move towards the pulling-out direction of the bolt to pull out the bolt from a locking state to an unlocking state.
2. The lock clutching device of claim 1, wherein the bolt is hinged to the sliding rod.
3. The lock clutch device according to claim 1, wherein a strip-shaped through groove is formed on the sliding rod along the length direction of the sliding rod, and a limiting block for limiting the rotation angle of the handle rotating sleeve is arranged at the through groove.
4. The lock clutch device according to claim 3, wherein the limiting blocks include a first sub limiting block and a second sub limiting block disposed at one end of the first sub limiting block, a free end of the first sub limiting block passes through the through groove to be connected with the clutch, and a dimension of the second sub limiting block is larger than a dimension of the through groove along a direction perpendicular to the length direction of the sliding rod.
5. The lock clutching device of claim 1, wherein a first through slot is formed on the handle rotator sleeve, a second through slot corresponding to the first through slot is formed on the rotary block, and the plug pin is engaged with the first through slot and the second through slot to connect the handle rotator sleeve and the rotary block.
6. The lock clutch device according to claim 1, wherein a spring stop is provided at an end of the handle rotation sleeve facing away from the rotation block, and the spring stop is connected to a return spring provided on a fixed block, so that when the handle rotation sleeve is rotated from an initial position to an unlocked position, the return spring generates a restoring force to rotate the handle rotation sleeve back to the initial position.
7. A lock, characterized in that it comprises a lock clutching device as claimed in any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084517.6A CN109537998B (en) | 2019-01-29 | 2019-01-29 | Lock clutch device and lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084517.6A CN109537998B (en) | 2019-01-29 | 2019-01-29 | Lock clutch device and lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109537998A CN109537998A (en) | 2019-03-29 |
| CN109537998B true CN109537998B (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910084517.6A Active CN109537998B (en) | 2019-01-29 | 2019-01-29 | Lock clutch device and lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109537998B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881985A (en) * | 2019-04-08 | 2019-06-14 | 浙江三木智能科技有限公司 | A kind of lockset |
| CN116733304A (en) * | 2020-07-29 | 2023-09-12 | 向德钊 | Door lock back-locking control mechanism |
| CN115387672B (en) * | 2022-09-01 | 2023-12-12 | 江苏东冠智能科技有限公司 | Outside door handle lock |
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| CN2546577Y (en) * | 2002-05-16 | 2003-04-23 | Tcl国际电工（惠州）有限公司 | Electric machine type radial clutch for door lock |
| DE202005020043U1 (en) * | 2005-12-22 | 2006-02-23 | Burg Schließsysteme F.W. Lüling KG | Bolting device for e.g. cabinets has movable pin that allows or prevents torque transfer between rotor and knob when rotor and knob are respectively coupled or uncoupled |
| CN202000752U (en) * | 2011-04-07 | 2011-10-05 | 杨官贵 | Double-safety electronic lock |
| CN203247944U (en) * | 2013-04-23 | 2013-10-23 | 佛山市思歌锁业科技有限公司 | Built-out clutch device for electronic lock |
| CN206636336U (en) * | 2017-04-12 | 2017-11-14 | 中山市雅尔电子科技有限公司 | A kind of electronic lock clutch reversing arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020088682A1 (en) * | 2001-01-11 | 2002-07-11 | Chung-Min Chang | Manual clutch for an electric garage door |
| DE10200153A1 (en) * | 2002-01-04 | 2003-07-17 | Lehmann Vertriebsgmbh | Motorized lock for furniture doors, drawers, etc. has a slip clutch to limit the motor action in a short distance rotation |
| CN107130851A (en) * | 2017-06-30 | 2017-09-05 | 凯拔（中国）科技有限公司 | The electronic lock that can be opened by key |
| CN207794834U (en) * | 2018-01-02 | 2018-08-31 | 李宝坚 | A kind of lockset clutch |
| CN107905640A (en) * | 2018-01-02 | 2018-04-13 | 李宝坚 | A kind of lockset clutch |
| CN109184328B (en) * | 2018-09-21 | 2024-05-14 | 深圳市罗漫斯智能家居有限公司 | Lock set |
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2019
- 2019-01-29 CN CN201910084517.6A patent/CN109537998B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2546577Y (en) * | 2002-05-16 | 2003-04-23 | Tcl国际电工（惠州）有限公司 | Electric machine type radial clutch for door lock |
| DE202005020043U1 (en) * | 2005-12-22 | 2006-02-23 | Burg Schließsysteme F.W. Lüling KG | Bolting device for e.g. cabinets has movable pin that allows or prevents torque transfer between rotor and knob when rotor and knob are respectively coupled or uncoupled |
| CN202000752U (en) * | 2011-04-07 | 2011-10-05 | 杨官贵 | Double-safety electronic lock |
| CN203247944U (en) * | 2013-04-23 | 2013-10-23 | 佛山市思歌锁业科技有限公司 | Built-out clutch device for electronic lock |
| CN206636336U (en) * | 2017-04-12 | 2017-11-14 | 中山市雅尔电子科技有限公司 | A kind of electronic lock clutch reversing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109537998A (en) | 2019-03-29 |
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