CN210728622U - Tennis ball serving machine - Google Patents
Tennis ball serving machine Download PDFInfo
- Publication number
- CN210728622U CN210728622U CN201921636986.6U CN201921636986U CN210728622U CN 210728622 U CN210728622 U CN 210728622U CN 201921636986 U CN201921636986 U CN 201921636986U CN 210728622 U CN210728622 U CN 210728622U
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- ball
- tennis
- fixing frame
- motor
- serving machine
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Abstract
A tennis ball serving machine comprises a ball hitting assembly and a ball falling assembly, wherein the ball falling assembly comprises a ball support used for storing tennis balls, and the ball hitting assembly comprises a fourth fixing frame, a ball hitting rod and a motor box. The ball hitting rod can rotate relative to the fourth fixing frame around a rotating shaft arranged on the ball hitting rod, and the tennis ball is hit by the ball hitting end arranged at one end of the ball hitting rod; wherein the motor case is fixed to be set up on the fourth mount, and the rotation control to the ball rod is realized through controlling the rotation axis to the first motor in the motor case. The tennis ball serving machine provided by the utility model has simple structure and convenient use.
Description
Technical Field
The utility model relates to a sports corollary equipment technical field, especially a tennis service robot.
Background
In the hot tide of the national fitness, the development speed of various sports is very rapid in recent years, wherein tennis is taken as a whole body sport and is more and more popular among people doing various sports. However, tennis is easy to practice and difficult to refine, and particularly for the connection of the hitting process, the tennis needs to be hit by a swing in a year-round and a month-round manner to reach a higher technical level.
With the increase of labor cost year by year, an automatic tennis ball serving machine appears in the prior art, which generally simulates tennis players to directly hit tennis balls through various power modes for trainers to practice ball hitting. However, most of the automatic tennis ball serving machines in the prior art cannot adjust the ball-serving angle and force, and even if some of the automatic tennis ball serving machines can adjust the ball-serving angle and force, most of the automatic tennis ball serving machines have quite complicated structures, high cost and difficult batch popularization. Most of the existing pitching machines extrude the tennis through a rubber wheel rotating at a high speed to launch the tennis, the mode has great damage to the fluff of the tennis, and the service life of the tennis is seriously shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the tennis service robot among the prior art structure is complicated, and can't adjust out ball angle and dynamics, and provide one kind can adjust out ball angle and dynamics, and the structure is simple relatively, and can promote tennis life's tennis service robot.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a tennis ball serving machine comprises a ball hitting assembly and a ball falling assembly, and is characterized in that the ball falling assembly comprises a ball tray used for storing tennis balls, and the ball hitting assembly comprises:
a fourth fixing frame;
the ball hitting rod can rotate around a rotating shaft arranged on the ball hitting rod relative to the fourth fixing frame and hits the tennis ball by relying on a ball hitting end arranged at one end of the ball hitting rod;
and the motor box is fixedly arranged on the fourth fixing frame, and a first motor in the motor box controls the rotation of the ball hitting rod by controlling the rotating shaft.
In the tennis ball serving machine, the ball hitting component further comprises a spring, one end of the spring is connected to the rear end, away from the ball hitting end, of the ball hitting rod, and the other end of the spring is fixedly arranged at a certain position, away from one side of the ball support, of the ball hitting rod.
In the above-mentioned tennis service robot, the batting subassembly still includes dynamics adjusting device, dynamics adjusting device includes:
the displacement plate is provided with a fixing hole, and the other end of the spring is fixed on the displacement plate through the fixing hole;
the fixed table is arranged in a static way relative to the fourth fixed frame;
and the threaded rod penetrates through the displacement plate and the fixed platform and is suitable for guiding the displacement plate to be close to or far away from the fixed platform through rotation.
In the tennis ball serving machine, one end of the threaded rod, which is far away from the fixed platform, is provided with the knob.
In the tennis ball serving machine, the ball support is composed of two supporting blocks, the two supporting blocks are arranged side by side and are used for storing tennis balls, and a gap between the two supporting blocks is suitable for preventing the blocking of the rotation of the ball hitting rod.
In the tennis service robot described above, the ball dropping assembly further includes:
the second fixing frame is arranged in a static way relative to the fourth fixing frame, and a ball hitting hole used for preventing the ball hitting rod from being blocked from rotating is arranged on the second fixing frame;
and the third fixing frame is fixedly connected with the ball support and is suitable for moving up and down relative to the second fixing frame.
In the tennis ball serving machine, the tennis ball serving machine further comprises a shell which coats the ball dropping component and the ball hitting component; the tennis ball hitting device comprises a shell, a third fixing frame and a third fixing frame, wherein the shell is provided with a ball outlet hole for a tennis ball to fly out after being hit by a ball hitting rod, and at least one limiting sliding groove, the third fixing frame is provided with a hole at a position corresponding to the limiting sliding groove, and the third fixing frame is detachably and fixedly connected with the shell by means of matching of the hole and the limiting sliding groove.
In the tennis service robot described above, the ball dropping assembly further includes:
the first fixing frame is arranged in a static way relative to the fourth fixing frame;
the tennis ball falling device is arranged above the ball support and is a cylindrical barrel, the size of the cylindrical barrel is suitable for storing a tennis ball, and a notch suitable for the tennis ball to enter and exit is formed in the wall surface of the cylindrical barrel; the end face circle center position of the cylindrical barrel is provided with a motor hole, and the cylindrical barrel rotates around the axis of the cylindrical barrel under the driving of a second motor through the motor hole.
In the tennis ball serving machine, the shell is provided with a ball falling hole, and the ball falling hole is arranged above the ball falling device; the tennis ball serving machine further comprises a ball storage pipe, and the ball storage pipe is arranged at the upper end of the ball falling hole.
The tennis ball serving machine further comprises a control system, wherein the control system comprises a processor for controlling the first motor and the second motor to be started and stopped, and a remote controller for controlling the processor.
Compared with the prior art, the technical scheme of the utility model have following advantage:
① the utility model discloses a tennis pitching machine, including hitting ball subassembly and ball falling subassembly, ball falling subassembly includes the ball tray that is used for depositing the tennis, hits ball subassembly includes the fourth mount, hits ball pole and motor case, wherein hit the ball pole can be rotatory for the fourth mount around the rotation axis that sets up on it, and hit the tennis to rely on the ball hitting end that sets up in ball pole one end to hit, wherein the motor case is fixed to be set up on the fourth mount, the rotation control to hitting ball pole is realized through controlling the rotation axis to first motor in the motor case.
② the utility model discloses a tennis service robot, batting subassembly still includes the spring, the one end of spring is connected in batting pole and is kept away from the rear end of batting the end, the other end of spring is fixed to be set up in a certain position that batting pole kept away from one side of the ball support, such design, the circumferential motion of batting pole is accomplished jointly to spring and first motor, at first drive batting pole by first motor and make it get into and wait to hit the ball position, later utilize the restoring force of spring will batting pole rebound normal position, and accomplish the batting process at the in-process of rebounding, thereby realize the adjustment to batting strength through the restoring force realization of adjusting spring, realize different play ball dynamics, the application range of tennis service robot has been increased.
③ the utility model discloses a tennis pitching machine, batting subassembly still include dynamics adjusting device, dynamics adjusting device includes displacement plate, fixed station, threaded rod, wherein be provided with the fixed orifices on the displacement plate, the other end of spring passes through the fixed orifices to be fixed on the displacement plate, wherein the fixed station is for the static setting of fourth mount, wherein the threaded rod runs through displacement plate and fixed station, the threaded rod is suitable for and leads the displacement plate to be close to or keep away from the fixed station through rotating.
④ the tennis ball serving machine of the utility model has a knob at the end of the threaded rod far from the fixed platform, which is more convenient to rotate the threaded rod by the knob.
⑤ the utility model discloses a tennis pitching machine, the ball support comprises two supporting shoes, and two supporting shoes are arranged side by side and are the same as depositing the tennis jointly, and the space between two supporting shoes is suitable for preventing to hinder the rotation of batting pole because batting pole is rotary motion, utilizes the space between two supporting shoes, batting pole can be followed the bottom and directly hit the tennis, and need not consider to avoid the ball support, has increased the batting angle that batting pole can select to can adjust the ball angle of play through the size adjustment of batting pole, promoted the application range of tennis pitching machine.
⑥ the tennis ball serving machine of the present invention, the ball dropping assembly further comprises a second fixing frame and a third fixing frame, wherein the second fixing frame is arranged stationary relative to the fourth fixing frame, and the second fixing frame is provided with a ball hitting hole for preventing blocking the rotation of the ball hitting rod, wherein the third fixing frame is fixedly connected with the ball support, and the third fixing frame is suitable for moving up and down relative to the second fixing frame.
⑦ the utility model discloses a tennis pitching machine, still include the ball dropping subassembly with hit the cladding casing of ball subassembly, be provided with on the casing and be used for the tennis to be hit ball pole and hit the ball hole of play that the back flew out after hitting to and at least one spacing spout, the third mount sets up porosely in the position that corresponds with spacing spout, the third mount is according to the cooperation of support hole and spacing spout, with casing detachably rigid coupling.
⑧ the tennis ball serving machine of the present invention, the ball falling assembly further comprises a first fixing frame and a ball falling device, wherein the first fixing frame is static relative to the fourth fixing frame, the ball falling device is disposed above the ball support, the ball falling device is a cylindrical tube, the size of the cylindrical tube is suitable for storing a tennis ball, and the wall surface of the cylindrical tube is provided with an opening suitable for the tennis ball to go in and out, the end surface circle center position of the cylindrical tube is provided with a motor hole, the cylindrical tube is driven by the second motor to rotate around the axis of the cylindrical tube through the motor hole.
⑨ the utility model has a ball falling hole on the shell, which is arranged above the ball falling device, and a ball storage tube arranged at the upper end of the ball falling hole.
⑩ the utility model discloses a tennis service robot still includes control system, and control system is including the treater that control first motor and second motor opened and close and the remote controller of control treater such design can realize carrying out overall control to tennis service robot through the remote controller to remote control probably in having realized, when only a person, can utilize the remote controller to practice the batting in the distant place control, promoted tennis service robot's use convenience.
Drawings
In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic structural view of a tennis ball serving machine according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of the tennis ball serving machine according to the preferred embodiment of the present invention with the housing and the ball storage tube removed;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic structural view of a ball striking assembly of a tennis ball serving machine according to a preferred embodiment of the present invention;
fig. 5 is a schematic structural view of a ball dropping assembly of the tennis ball serving machine according to the preferred embodiment of the present invention.
The reference numbers in the figures denote: 1-ball storage tube, 2-shell, 21-ball outlet hole, 22-limit sliding groove, 3-ball falling hole, 4-first fixing frame, 5-ball falling device, 51-motor hole, 52-cylindrical barrel, 6-second fixing frame, 61-ball hitting hole, 7-ball support, 8-force adjusting device, 81-knob, 82-threaded rod, 83-displacement plate, 831-fixing hole, 84-fixing table, 9-motor box, 10-ball hitting rod, 101-ball hitting end, 102-rear end, 103-rotating shaft, 11-spring, 12-third fixing frame and 13-fourth fixing frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1-5, it is a preferred embodiment of the tennis ball serving machine of the present invention. The tennis ball serving machine comprises a ball hitting component, a ball falling component, a shell 2, a ball storage pipe 1 and a control system.
The shell 2 is used for coating the ball dropping component and the ball hitting component, and the shell 2 is provided with a ball outlet 21 for the tennis ball to fly out after being hit by the ball hitting rod 10. Further, the shape of the ball outlet 21 is oblong as shown in fig. 1, so that tennis balls can be hit smoothly at different ball outlet heights.
The ball hitting assembly comprises a fourth fixing frame 13, a ball hitting rod 10, a motor box 9, a spring 11 and a force adjusting device 8.
In this embodiment, the fourth fixing frame 13 is directly fixed to the housing 2.
The ball striking rod 10 can rotate around a rotating shaft 103 arranged on the ball striking rod relative to the fourth fixing frame 13, and strikes a tennis ball by relying on a ball striking end 101 arranged at one end of the ball striking rod 10;
the motor box 9 is fixedly arranged on the fourth fixing frame 13, and a first motor in the motor box 9 controls the rotation of the ball striking rod 10 by controlling the rotating shaft 103.
One end of the spring 11 is connected to a rear end 102 of the ball striking rod 10 away from the ball striking end 101, and the other end of the spring 11 is fixedly disposed at a position on one side of the ball striking rod 10 away from the ball support 7. In this embodiment, the other end of the spring is fixedly disposed on the force adjusting device 8.
Further, the force adjusting device 8 includes a displacement plate 83, a fixed table 84, a threaded rod 82 and a knob 81. Wherein the displacement plate 83 is provided with a fixing hole 831, and the other end of the spring 11 is fixed on the displacement plate 83 through the fixing hole 831; the fixed table 84 is arranged stationary relative to the fourth fixed frame 13; the threaded rod 82 penetrates through the displacement plate 83 and the fixed table 84, and the threaded rod 82 is suitable for guiding the displacement plate 83 to be close to or far away from the fixed table 84 through rotation; the knob 81 is disposed at an end of the threaded rod 82 remote from the fixed stage 84. Further, the fixed table 84 is directly fixed to the housing 2.
The ball falling assembly comprises a ball support 7 for storing tennis balls, a second fixing frame 6, a third fixing frame 12, a first fixing frame 4, a ball falling device 5 and a second motor.
In this embodiment, the ball support 7 is composed of two support blocks, which are arranged side by side and are used together to store tennis balls, and the gap between the two support blocks is suitable for preventing the blocking of the rotation of the ball striking rod 10. Furthermore, the two support blocks are formed by L-shaped sheet structures as shown in fig. 2, and the support blocks and the tennis ball contact surface have a certain inclination angle, so as to prevent the tennis ball from automatically rolling away from the ball support 7 directly along the hitting direction.
In this embodiment, the second fixing frame 6 is stationary with respect to the fourth fixing frame 13, and the second fixing frame 6 is provided with a striking hole 61 for preventing the ball striking rod 10 from being obstructed from rotating; the third fixing frame 12 is fixedly connected with the ball support 7, and the third fixing frame 12 is suitable for moving up and down relative to the second fixing frame 6. Furthermore, only one limiting sliding groove 22 is arranged at a position corresponding to the shell 2 and the third fixing frame, a hole is arranged at a position corresponding to the limiting sliding groove 22 of the third fixing frame 12, and the third fixing frame 12 is detachably and fixedly connected with the shell 2 by means of the matching of the hole and the limiting sliding groove 22. Further, the number of the limiting sliding grooves 22 is two.
Further, the second fixing frame 6 is also fixed to the housing 2.
The first holder 4 is arranged stationary relative to said fourth holder 13. In the present embodiment, the first fixing frame 4 is fixed to the housing 2. Further, the first fixing frame 4 has an n-shaped structure as shown in fig. 5, and the ball falling device 5 is disposed inside the first fixing frame 4.
Further, the ball falling device 5 is arranged above the ball support 7, the ball falling device 5 is a cylindrical tube 52, the size of the cylindrical tube 52 is suitable for storing a tennis ball, and a notch suitable for the tennis ball to enter and exit is arranged on the wall surface of the cylindrical tube 52; the end face circle center position of the cylindrical barrel 52 is provided with a motor hole 51, and the cylindrical barrel 52 is driven by a second motor to rotate around the axis of the cylindrical barrel 52 through the motor hole 51.
In the embodiment, the housing 2 is provided with a ball falling hole 3, and the ball falling hole 3 is arranged above the ball falling device 5; the ball storage tube 1 is arranged at the upper end of the ball falling hole 3.
In this embodiment, the control system includes a processor for controlling the on/off of the first motor and the second motor, and a remote controller for controlling the processor. Furthermore, the remote controller is provided with an A key and a B key.
In this embodiment, the first motor and the second motor are driven by a lithium battery power supply.
The control flow of the tennis ball serving machine is as follows: the tennis ball serving machine starts a serving program once every time the 'B key' is pressed; pressing the key A once, and continuously starting a service program of the tennis service robot for low frequency by the tennis service robot until the key A is pressed again and the service robot stops; and continuously pressing the key A for two times within two seconds, and continuously starting the tennis ball serving machine for high frequency of the serving program until the key A is pressed again and the tennis ball serving machine stops.
The service procedure was as follows:
initial state: the first motor and the second motor are static, the ball hitting rod 10 is in a static position as shown in fig. 4, the spring 11 is in a relatively relaxed state, and the ball falling device 5 is in a static position;
a. the second motor drives the ball falling device 5 to rotate so that the opening is upward, and at the moment, tennis balls in the ball storage tube 1 enter the ball falling device 5 through the ball falling hole 3;
b. the second motor drives the ball dropping device 5 to continuously rotate to enable the direction of the opening to be downward, and tennis balls drop on the ball support 7 from the interior of the ball dropping device 5 through the opening;
c. the second motor drives the ball dropping device 5 to continuously rotate to a static position, and the power supply of the second motor is removed;
d. the first motor drives the ball striking rod 10 to rotate 180 degrees to 200 degrees along the counterclockwise direction of the visual angle shown in figure 4;
e. the power supply of the first motor is removed, the ball hitting rod 10 is driven by the return effect of the spring 11 to continue to rotate along the counterclockwise direction as viewed in fig. 4, and the tennis ball is hit and hit through the ball outlet 21;
f. under the drive of the spring 11, the batting rod 10 is reset to the initial position, and the service process is finished.
When the hitting power of the ball hitting rod 10 needs to be adjusted, the knob 81 is turned to make the displacement plate 83 approach or separate from the fixed table 84, so as to tighten or loosen the spring 11, adjust the restoring force of the spring 11, and further adjust the hitting power of the ball hitting rod 10 and the hitting distance of the tennis ball.
When the flying hitting angle of the tennis ball needs to be adjusted, the height of the ball support 7 is adjusted by adjusting the height of the third fixing frame 12 and fixing the third fixing frame 12 on the shell 2 by utilizing the matching of the hole and the limiting sliding groove 22, and the variation of the ball hitting angle of the tennis ball on the ball support 7 is realized under the condition that the surging direction of the ball hitting rod is not changed, so that the adjustment of the flying hitting angle of the tennis ball is adjusted.
In other embodiments, the tennis ball serving machine may not include the housing 2, the ball storage tube 1 and the control system, so that although a certain degree of convenience in use is lost, the manufacturing cost of the tennis ball serving machine is also reduced, and the housing 2, the ball storage tube 1 and the control system are not affected by the loss of the utility model discloses a realization of the design objective is achieved.
In other embodiments, the knob 81 may not be provided on the threaded rod 82.
In other embodiments, the number of the limiting chutes 22 may also be one, three or more.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (10)
1. A tennis ball serving machine comprising a ball striking assembly and a ball dropping assembly, wherein the ball dropping assembly comprises a tray (7) for storing tennis balls, and the ball striking assembly comprises:
a fourth fixing frame (13);
the ball hitting rod (10) can rotate relative to the fourth fixing frame (13) around a rotating shaft (103) arranged on the ball hitting rod (10), and the ball hitting end (101) arranged at one end of the ball hitting rod (10) hits tennis balls;
and the motor box (9) is fixedly arranged on the fourth fixing frame (13), and a first motor in the motor box (9) controls the rotation of the ball hitting rod (10) by controlling the rotating shaft (103).
2. The tennis ball serving machine of claim 1, wherein: the ball hitting assembly further comprises a spring (11), one end of the spring (11) is connected to the rear end (102) of the ball hitting rod (10) far away from the ball hitting end (101), and the other end of the spring (11) is fixedly arranged at a certain position of one side, far away from the ball support (7), of the ball hitting rod (10).
3. The tennis ball serving machine of claim 2, wherein said ball striking assembly further comprises a force adjustment device (8), said force adjustment device (8) comprising:
the displacement plate (83) is provided with a fixing hole (831), and the other end of the spring (11) is fixed on the displacement plate (83) through the fixing hole (831);
a stationary table (84) stationary with respect to the fourth stationary frame (13);
a threaded rod (82) extending through the displacement plate (83) and the fixed stage (84), the threaded rod (82) being adapted to guide the displacement plate (83) toward or away from the fixed stage (84) by rotation.
4. The tennis ball serving machine of claim 3, wherein: and one end of the threaded rod (82) far away from the fixed platform (84) is provided with a knob (81).
5. Tennis pitching machine according to any one of claims 1 to 4, wherein said ball support (7) is composed of two support blocks, arranged side by side and common for storing tennis balls, the space between said two support blocks being adapted to prevent blocking of the rotation of said ball striking bar (10).
6. The tennis ball serving machine of claim 5, wherein said ball drop assembly further comprises:
the second fixing frame (6) is arranged in a stationary mode relative to the fourth fixing frame (13), and a ball hitting hole (61) used for preventing the ball hitting rod (10) from being blocked from rotating is formed in the second fixing frame (6);
and the third fixing frame (12) is fixedly connected with the ball support (7), and the third fixing frame (12) is suitable for moving up and down relative to the second fixing frame (6).
7. The tennis ball serving machine of claim 6, wherein: the tennis ball serving machine further comprises a shell (2) which coats the ball dropping component and the ball hitting component; the tennis ball hitting device is characterized in that a ball outlet (21) for a tennis ball to fly out after being hit by the ball hitting rod (10) and at least one limiting sliding groove (22) are formed in the shell (2), a hole is formed in the position, corresponding to the limiting sliding groove (22), of the third fixing frame (12), and the third fixing frame (12) is detachably and fixedly connected with the shell (2) by means of matching of the hole and the limiting sliding groove (22).
8. The tennis ball serving machine of claim 7, wherein said ball drop assembly further comprises:
a first holder (4) arranged stationary with respect to the fourth holder (13);
the tennis ball falling device (5) is arranged above the ball support (7), the tennis ball falling device (5) is a cylindrical barrel (52), the size of the cylindrical barrel (52) is suitable for storing a tennis ball, and a notch suitable for the tennis ball to enter and exit is formed in the wall surface of the cylindrical barrel (52); the end face circle center position of the cylindrical barrel (52) is provided with a motor hole (51), and the cylindrical barrel (52) rotates around the axis of the cylindrical barrel (52) under the driving of a second motor through the motor hole (51).
9. The tennis ball serving machine of claim 8, wherein: a ball falling hole (3) is formed in the shell (2), and the ball falling hole (3) is formed above the ball falling device (5); the tennis ball serving machine further comprises a ball storage pipe (1), and the ball storage pipe (1) is arranged at the upper end of the ball falling hole (3).
10. The tennis ball serving machine of claim 9, wherein: the control system comprises a processor for controlling the first motor and the second motor to be started and stopped and a remote controller for controlling the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921636986.6U CN210728622U (en) | 2019-09-29 | 2019-09-29 | Tennis ball serving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921636986.6U CN210728622U (en) | 2019-09-29 | 2019-09-29 | Tennis ball serving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210728622U true CN210728622U (en) | 2020-06-12 |
Family
ID=70985805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921636986.6U Expired - Fee Related CN210728622U (en) | 2019-09-29 | 2019-09-29 | Tennis ball serving machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210728622U (en) |
-
2019
- 2019-09-29 CN CN201921636986.6U patent/CN210728622U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 Termination date: 20210929 |