CN107607865A - The equipment of proved keyboard quality - Google Patents
The equipment of proved keyboard quality Download PDFInfo
- Publication number
- CN107607865A CN107607865A CN201711068578.0A CN201711068578A CN107607865A CN 107607865 A CN107607865 A CN 107607865A CN 201711068578 A CN201711068578 A CN 201711068578A CN 107607865 A CN107607865 A CN 107607865A
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- fixedly mounted
- keyboard
- signal
- button
- base
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Abstract
The invention discloses a kind of equipment of proved keyboard quality,Including base,The base is provided with and holds mechanism,The mechanism that holds is provided with placing table,Groove,Limited block,Cushion blocking,Keyboard is imported and exported,Spherical ball,Detachable limited block,Square opening,Keyboard connecting line,USB,Fixed mechanism,The fixed mechanism is provided with small rotary motor,Connection sheet,Small-sized electric expansion link,Rubber blanket,The base is provided with press button mechanism,The press button mechanism is provided with support frame,Support platform,Electric expansion bar,Button casing,Electromagnet,Spring,Iron block,Button feedback mechanism,Cushion,The base is provided with inspection body,The inspection body is provided with signal verification machine,USB interface,Keyboard emulation software,Signal receiver,Liquid crystal display,Button,Signal line jack,Photosensitive sensor,Signal projector one,The base side is provided with controller.The invention has the advantages that it is simple in construction, it is practical.
Description
Technical field
The present invention relates to production and processing field, particularly a kind of equipment of proved keyboard quality.
Background technology
With the deep society of computer, a kind of input equipment keyboard as computer is also more and more, in the market
It is required for testing when keyboard dispatches from the factory and just can guarantee that qualification rate, is all by manually grasping during in general manufacturer proved keyboard
Make machine simply to be examined, can use, it is impossible to which obtaining effective feedback information causes the keyboard good and the bad of in the market
Uneven, service life also cannot be guaranteed.
The content of the invention
The invention aims to solve the above problems, a kind of equipment of proved keyboard quality is devised.
Realize above-mentioned purpose the technical scheme is that, a kind of equipment of proved keyboard quality, including base, the bottom
Seat is fixedly mounted on the ground, and the base is provided with and holds mechanism, and the mechanism that holds is by being fixedly mounted on base upper surface
Placing table, the groove in placing table, the limited block being fixedly mounted in groove, the vibration damping being fixedly mounted in groove
Pad, positioned at placing table side keyboard inlet and outlet, be fixedly mounted on the equally distributed spherical ball in keyboard import and export lower surface,
It is fixedly mounted in groove and is located at the detachable limited block of keyboard import and export side, positioned at detachable limited block lower end side
Keyboard connecting line, the USB for being fixedly mounted on keyboard connecting line end that square opening, one end and the keyboard connection other end stretch out square opening are inserted
Mouth, it is fixedly mounted on what the equally distributed fixed mechanism in placing table upper surface collectively formed, the fixed mechanism is by being fixedly mounted
Small rotary motor in placing table upper surface, it is fixedly mounted on the connection sheet of small rotary motor round end, is fixedly mounted on
Connection sheet lower surface small-sized electric expansion link, it is fixedly mounted on what the rubber blanket of small-sized electric expansion link lower surface collectively formed,
The base is provided with press button mechanism, and the press button mechanism is by being fixedly mounted on the support frame of placing table side, being fixedly mounted on
Support platform at the upper side of support frame, it is fixedly mounted on multiple electric expansions that support platform lower surface is located above placing table
Bar, the button casing for being fixedly mounted on electric expansion bar lower surface, it is fixedly mounted on upper surface and keyboard in button casing
The electromagnet of corresponding distribution, one end are fixedly connected with button casing and are located at the spring of electromagnet both sides respectively, are another with spring
The iron block being fixedly connected is held, the button feedback mechanism of iron block lower surface is fixedly mounted on, is fixedly mounted on iron block lower surface and incites somebody to action
What the cushion of button feedback mechanism parcel collectively formed, the base is provided with inspection body, and the inspection body is by fixing peace
Mounted in the signal verification machine of side on base, it is fixedly mounted on the USB interface of signal verification machine side, in signal verification machine
The keyboard emulation software in portion, the signal receiver inside signal verification machine, the liquid crystal display positioned at signal verification machine upper surface,
Button, the signal wire positioned at signal verification machine side that signal verification machine upper surface is located at below liquid crystal display is fixedly mounted on to insert
Mouthful, be fixedly mounted on photosensitive sensor that upper surface in button casing is located above keyboard signal lamp, in photosensitive sensor
Signal projector one collectively form, the base side is provided with controller.
The button feedback mechanism by being fixedly mounted on the pressure sensor of iron block lower surface, positioned at pressure sensor inside
Signal projector two collectively form.
The plastic of conduit for being fixedly mounted on upper surface in button casing is provided with the outside of the iron block.
The keyboard import and export lower surface is provided with multiple ball recess, and the electromagnet can overcome the bullet of spring when starting
Power retracts iron block.
The spherical ball is located inside of spherical groove and ball recess and free to rotate is exposed in upper end.
Commercial power interface, signal wire interface, electric capacity display screen, PLC system are provided with the controller.
The signal verification machine is fixedly connected with the other end with signal line jack by one end and is fixedly connected with signal wire interface
Signal wire transmit signal.
Be provided with the photosensitive sensor put with keyboard signal lamp position, the corresponding sensitivity speck of quantity.
The signal projector one and signal projector two are connected by Bluetooth signal with signal receiver.
The controller and small rotary motor, small-sized electric expansion link, electric expansion bar, electromagnet, signal verification machine,
Photosensitive sensor, pressure sensor etc. are electrically connected with, and are controlled by PLC system.
The equipment of the proved keyboard quality made using technical scheme, it is only necessary to by being manually put into keyboard
In this equipment, by press button mechanism automatic keying, and pressure change when can obtain by feedback mechanism button, show that keyboard exists
Friction during use repeatedly can carry out button by press button mechanism so as to be improved within the brief time, and
Success rate is examined by inspection body, reduces manual labor amount, reduces enterprise's cost of labor.
Brief description of the drawings
Fig. 1 is the structural representation of the equipment of proved keyboard quality of the present invention；
Fig. 2 is the partial schematic diagram of the present invention for holding mechanism；
Fig. 3 is the partial schematic diagram of fixed mechanism of the present invention；
Fig. 4 is the partial schematic diagram of press button mechanism of the present invention；
Fig. 5 is the partial schematic diagram of inspection body of the present invention；
Fig. 6 is the partial schematic diagram of photosensitive sensor of the present invention；
In figure, 1, base；2nd, placing table；3rd, groove；4th, limited block；5th, cushion blocking；6th, keyboard is imported and exported；7th, spherical rolling
Pearl；8th, detachable limited block；9th, square opening；10th, keyboard connecting line；11st, USB；12nd, small rotary motor；13rd, connection sheet；
14th, small-sized electric expansion link；15th, rubber blanket；16th, support frame；17th, support platform；18th, electric expansion bar；19th, button casing；
20th, electromagnet；21st, spring；22nd, iron block；23rd, cushion；24th, signal verification machine；25th, USB interface；26th, keyboard emulation software；
27th, signal receiver；28th, liquid crystal display；29th, button；30th, signal line jack；31st, photosensitive sensor；32nd, signal projector one；
33rd, controller；34th, pressure sensor；35th, signal projector two；36th, plastic of conduit；37th, ball recess；38th, commercial power connects
Mouthful；39th, signal wire interface；40th, electric capacity display screen；41st, PLC system；42nd, signal wire；43rd, sensitivity speck.
Embodiment
The present invention is specifically described below in conjunction with the accompanying drawings, as shown in figures 1 to 6, a kind of equipment of proved keyboard quality,
Including base 1, the base 1 is fixedly mounted on the ground, and the base 1, which is provided with, holds mechanism, and the mechanism that holds is by solid
Dingan County mounted in the placing table 2 of the upper surface of base 1, the groove 3 in placing table 2, the limited block 4 being fixedly mounted in groove 3,
Cushion blocking 5, the keyboard positioned at the side of placing table 2 being fixedly mounted in groove 3 import and export 6, are fixedly mounted on keyboard inlet and outlet 6
The equally distributed spherical ball 7 in place lower surface, the detachable limit for being fixedly mounted on the side at keyboard inlet and outlet 6 in groove 3
The keyboard that position block 8, the square opening 9 positioned at the detachable lower end side of limited block 8, one end and the keyboard connection other end stretch out square opening 9 connects
Wiring 10, the USB 11 for being fixedly mounted on the end of keyboard connecting line 10, it is fixedly mounted on the upper surface of placing table 2 and is uniformly distributed
Fixed mechanism collectively form, the fixed mechanism is by being fixedly mounted on the small rotary motor 12, solid of placing table 2 upper surface
Dingan County is mounted in the connection sheet 13 of the round end of small rotary motor 12, is fixedly mounted on the lower surface small-sized electric expansion link of connection sheet 13
14th, it is fixedly mounted on what the rubber blanket 15 of the lower surface of small-sized electric expansion link 14 collectively formed, the base 1 is provided with button machine
Structure, the press button mechanism is by being fixedly mounted on the support frame 16 of the side of placing table 2, being fixedly mounted on the upper side of support frame 16
Support platform 17, it is fixedly mounted on multiple electric expansion bars 18, fixed peace that the lower surface of support platform 17 is located above placing table 2
Button casing 19 mounted in the lower surface of electric expansion bar 18, to be fixedly mounted on upper surface in button casing 19 corresponding with keyboard
The electromagnet 20 of distribution, one end are fixedly connected with button casing 19 and are located at the spring 21 and spring of the both sides of electromagnet 20 respectively
Iron block 22 that 21 other ends are fixedly connected, it is fixedly mounted on the button feedback mechanism of the lower surface of iron block 22, is fixedly mounted on iron block
22 lower surfaces and the cushion 23 that button feedback mechanism wraps up is collectively formed, the base 1 is provided with inspection body, the inspection
Mechanism is tested to be connect by the USB for being fixedly mounted on the signal verification machine 24 of side on base 1, being fixedly mounted on the side of signal verification machine 24
Mouthfuls 25, the keyboard emulation software 26 inside signal verification machine 24, the signal receiver 27 inside signal verification machine 24,
Liquid crystal display 28 positioned at the upper surface of signal verification machine 24, it is fixedly mounted on the upper surface of signal verification machine 24 and is located at the lower section of liquid crystal display 28
Button 29, the signal line jack 30 positioned at the side of signal verification machine 24, be fixedly mounted on upper surface in button casing 19 and be located at
Photosensitive sensor 31 above keyboard signal lamp, the signal projector 1 in photosensitive sensor 31 collectively form, institute
State the side of base 1 and be provided with controller 33；The button feedback mechanism is by being fixedly mounted on the pressure sensor of the lower surface of iron block 22
34th, the signal projector 2 35 inside pressure sensor 34 collectively forms；The outside of iron block 22, which is provided with, to be fixedly mounted
The plastic of conduit 36 of upper surface in button casing 19；Lower surface is provided with multiple ball recess 37, institute at the keyboard inlet and outlet 6
Stating when electromagnet 20 starts can overcome the elastic force of spring 21 to retract iron block 22；The spherical ball 7 is located in ball recess 37
And ball recess 37 and free to rotate is exposed in upper end；Commercial power interface 38, signal wire interface are provided with the controller 33
39th, electric capacity display screen 40, PLC system 41；The signal verification machine 24 is fixedly connected another by one end with signal line jack 30
The signal wire 42 being fixedly connected with signal wire interface 39 is held to transmit signal；It is provided with and keyboard signal lamp in the photosensitive sensor 31
Sensitivity speck 43 corresponding to position, quantity；The signal projector 1 and signal projector 2 35 pass through Bluetooth signal and signal
Receiver 27 connects；The controller 33 and small rotary motor 12, small-sized electric expansion link 14, electric expansion bar 18, electromagnetism
Iron 20, signal verification machine 24, photosensitive sensor 31, pressure sensor 34 etc. are electrically connected with, and are controlled by PLC system 41.
The characteristics of the present embodiment is, base is fixedly mounted on the ground, and base is provided with and holds mechanism, hold mechanism by
It is fixedly mounted on the placing table of base upper surface, the groove in placing table, the limited block being fixedly mounted in groove, fixation
Cushion blocking in groove, the keyboard inlet and outlet positioned at placing table side, it is fixedly mounted on keyboard import and export lower surface
Equally distributed spherical ball, it is fixedly mounted on detachable limited block in groove positioned at keyboard import and export side, positioned at can
Square opening, one end and the keyboard connection other end for dismantling limited block lower end side stretch out the keyboard connecting line of square opening, are fixedly mounted on
The USB of keyboard connecting line end, it is fixedly mounted on what the equally distributed fixed mechanism in placing table upper surface collectively formed, Gu
Mechanism is determined by being fixedly mounted on the small rotary motor of placing table upper surface, being fixedly mounted on the company of small rotary motor round end
Contact pin, the rubber for being fixedly mounted on connection sheet lower surface small-sized electric expansion link, being fixedly mounted on small-sized electric expansion link lower surface
What rubber cushion collectively formed, base is provided with press button mechanism, and press button mechanism is by being fixedly mounted on support frame, the fixation of placing table side
Support platform at the upper side of support frame, it is fixedly mounted on multiple electricity that support platform lower surface is located above placing table
Dynamic expansion link, it is fixedly mounted on the button casing of electric expansion bar lower surface, is fixedly mounted on upper surface and key in button casing
The electromagnet of the corresponding distribution of disk button, one end are fixedly connected with button casing and are located at the spring and bullet of electromagnet both sides respectively
Iron block that the spring other end is fixedly connected, it is fixedly mounted on the button feedback mechanism of iron block lower surface, is fixedly mounted on iron block following table
What face and the cushion for wrapping up button feedback mechanism collectively formed, base is provided with inspection body, and inspection body is by being fixedly mounted
On base the signal verification machine of side, be fixedly mounted on the USB interface of signal verification machine side, inside signal verification machine
The keyboard emulation software, signal receiver inside signal verification machine, the liquid crystal display positioned at signal verification machine upper surface, solid
Dingan County mounted in signal verification machine upper surface be located at the button below liquid crystal display, the signal line jack positioned at signal verification machine side,
It is fixedly mounted on upper surface in button casing and is located at the photosensitive sensor above keyboard signal lamp, the letter in photosensitive sensor
What number transmitter one collectively formed, base side is provided with controller, one kind fixes keyboard, automatic keying, with feedback mechanism
Proved keyboard quality equipment, improve checkability, reduce manual labor amount, reduce enterprise's cost of labor.
In the present embodiment, detachable limited block is taken down, keyboard is imported and exported from keyboard and is pushed into, spherical ball can be
Keyboard is laborsaving when passing in and out and prevents excessive friction keyboard, will be detachable spacing packaged by keyboard by limited block defined position
It is good, keyboard connecting line is stretched out from square opening, starts small rotary motor, makes the company for being fixedly mounted on small rotary motor round end
Contact pin is rotated, and small-sized electric expansion link is rotated to above keyboard, and then starting small-sized electric expansion link makes its elongation, by keyboard
Push down, start electric expansion bar, button casing is fallen on correct position, start according to certain order or unclamp electromagnet, make
The apish percussion dynamics of iron block taps keyboard, and the cushion under iron block prevents from destroying keyboard, the pressure sensor in feedback mechanism
Suffered pressure is passed to signal in signal verification machine by signal projector two, the frictional force of proved keyboard is same with this
When, signal verification machine is connected by USB interface with keyboard, uses keyboard emulation software test button effect, photosensitive sensor inspection
The opening and closing of keyboard signal lamp is surveyed, and signal is sent in signal verification machine by signal projector one, overall inspection keyboard
Quality, after being verified, by signal wire by the data transfer of keyboard into controller, judge whether keyboard closes by controller
Lattice and do not conform to lattice point which, complete whole work process.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art
Some variations that some of which part may be made are embodied the present invention principle, belong to protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of equipment of proved keyboard quality, including base (1), it is characterised in that the base (1) is fixedly mounted on ground
On, the base (1) is provided with and holds mechanism, and the mechanism that holds is by being fixedly mounted on the placing table of base (1) upper surface
(2), the groove (3) in placing table (2), be fixedly mounted in groove (3) limited block (4), be fixedly mounted on groove (3)
Interior cushion blocking (5), the keyboard inlet and outlet (6) positioned at placing table (2) side, it is fixedly mounted on keyboard inlet and outlet (6) place following table
The equally distributed spherical ball in face (7), it is fixedly mounted in groove (3) positioned at the detachable limit of keyboard inlet and outlet (6) place side
Position block (8), the square opening (9) positioned at detachable limited block (8) lower end side, one end and the keyboard connection other end stretch out square opening (9)
Keyboard connecting line (10), be fixedly mounted on the USB (11) of keyboard connecting line (10) end, be fixedly mounted on placing table
(2) the equally distributed fixed mechanism in upper surface collectively forms, and the fixed mechanism is by being fixedly mounted on placing table (2) upper surface
Small rotary motor (12), be fixedly mounted on small rotary motor (12) round end connection sheet (13), the company of being fixedly mounted on
Contact pin (13) lower surface small-sized electric expansion link (14), the rubber blanket for being fixedly mounted on small-sized electric expansion link (14) lower surface
(15) collectively form, the base (1) is provided with press button mechanism, and the press button mechanism is by being fixedly mounted on placing table (2) one
The support frame (16) of side, the support platform (17) being fixedly mounted at the upper side of support frame (16), it is fixedly mounted on support platform
(17) lower surface is located at multiple electric expansion bars (18) above placing table (2), is fixedly mounted on electric expansion bar (18) following table
The button casing (19) in face, the electromagnet for being fixedly mounted on the distribution corresponding with keyboard of button casing (19) interior upper surface
(20), one end is fixedly connected with button casing (19) and is located at the spring (21) and spring (21) of electromagnet (20) both sides respectively
Iron block (22) that the other end is fixedly connected, it is fixedly mounted on the button feedback mechanism of iron block (22) lower surface, is fixedly mounted on iron
What block (22) lower surface and the cushion (23) for wrapping up button feedback mechanism collectively formed, the base (1) is provided with checking machine
Structure, the inspection body is by being fixedly mounted on the signal verification machine (24) of side on base (1), being fixedly mounted on signal verification machine
(24) USB interface (25) of side, positioned at the internal keyboard emulation software (26) of signal verification machine (24), positioned at signal verification machine
(24) signal receiver (27) inside, the liquid crystal display (28) positioned at signal verification machine (24) upper surface, it is fixedly mounted on signal
Checking machine (24) upper surface is located at the button (29) below liquid crystal display (28), the signal wire positioned at signal verification machine (24) side is inserted
Mouthful (30), it is fixedly mounted on photosensitive sensor (31) that button casing (19) interior upper surface is located above keyboard signal lamp, is located at
What the signal projector one (32) in photosensitive sensor (31) collectively formed, base (1) side is provided with controller (33).
A kind of 2. equipment of proved keyboard quality according to claim 1, it is characterised in that the button feedback mechanism by
It is fixedly mounted on the pressure sensor (34) of iron block (22) lower surface, positioned at the internal signal projector two of pressure sensor (34)
(35) collectively form.
3. the equipment of a kind of proved keyboard quality according to claim 1, it is characterised in that set on the outside of the iron block (22)
There is the plastic of conduit (36) for being fixedly mounted on button casing (19) interior upper surface.
4. the equipment of a kind of proved keyboard quality according to claim 1, it is characterised in that the keyboard imports and exports (6)
Place lower surface is provided with multiple ball recess (37), and the elastic force of spring (21) can be overcome during electromagnet (20) startup by iron block
(22) retract.
A kind of 5. equipment of proved keyboard quality according to claim 1, it is characterised in that spherical ball (7) position
In the ball recess (37) and ball recess (37) and free to rotate is exposed in upper end.
6. the equipment of a kind of proved keyboard quality according to claim 1, it is characterised in that set in the controller (33)
There are commercial power interface (38), signal wire interface (39), electric capacity display screen (40), PLC system (41).
A kind of 7. equipment of proved keyboard quality according to claim 1, it is characterised in that the signal verification machine (24)
The signal wire (42) that the other end is fixedly connected with signal wire interface (39) is fixedly connected with by one end with signal line jack (30) to pass
Delivery signal.
A kind of 8. equipment of proved keyboard quality according to claim 1, it is characterised in that the photosensitive sensor (31)
It is interior be provided with put with keyboard signal lamp position, the corresponding sensitivity speck (43) of quantity.
A kind of 9. equipment of proved keyboard quality according to claim 1, it is characterised in that the signal projector one
(32) it is connected with signal projector two (35) by Bluetooth signal with signal receiver (27).
A kind of 10. equipment of proved keyboard quality according to claim 1, it is characterised in that the controller (33) with
Small rotary motor (12), small-sized electric expansion link (14), electric expansion bar (18), electromagnet (20), signal verification machine (24),
Photosensitive sensor (31), pressure sensor (34) etc. are electrically connected with, and are controlled by PLC system (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068578.0A CN107607865A (en) | 2017-11-03 | 2017-11-03 | The equipment of proved keyboard quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068578.0A CN107607865A (en) | 2017-11-03 | 2017-11-03 | The equipment of proved keyboard quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107607865A true CN107607865A (en) | 2018-01-19 |
Family
ID=61085671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711068578.0A Withdrawn CN107607865A (en) | 2017-11-03 | 2017-11-03 | The equipment of proved keyboard quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107607865A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108216282A (en) * | 2018-01-22 | 2018-06-29 | 牟京县 | The attachment device of getting off used when train arrives at a station |
| CN108363647A (en) * | 2018-02-10 | 2018-08-03 | 东莞市联洲知识产权运营管理有限公司 | A kind of test machine of computor-keyboard rubber key |
| CN109682590A (en) * | 2019-02-18 | 2019-04-26 | 昆山洺九机电有限公司 | A kind of keyboard test machine and test equipment |
| CN109753105A (en) * | 2018-12-26 | 2019-05-14 | 新松机器人联合研究院(苏州)有限公司 | Multiple spot key system |
| CN110160756A (en) * | 2018-02-13 | 2019-08-23 | 技嘉科技股份有限公司 | Pressing piece, test device and test method |
| CN111256926A (en) * | 2020-03-18 | 2020-06-09 | 三门县点帆环保科技有限公司 | Combined key elasticity detection device on automotive interior trim part |
| CN111337279A (en) * | 2020-02-28 | 2020-06-26 | 南通大学 | Electric operating table fatigue detection device and detection method thereof |
-
2017
- 2017-11-03 CN CN201711068578.0A patent/CN107607865A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108216282A (en) * | 2018-01-22 | 2018-06-29 | 牟京县 | The attachment device of getting off used when train arrives at a station |
| CN108363647A (en) * | 2018-02-10 | 2018-08-03 | 东莞市联洲知识产权运营管理有限公司 | A kind of test machine of computor-keyboard rubber key |
| CN110160756A (en) * | 2018-02-13 | 2019-08-23 | 技嘉科技股份有限公司 | Pressing piece, test device and test method |
| CN109753105A (en) * | 2018-12-26 | 2019-05-14 | 新松机器人联合研究院(苏州)有限公司 | Multiple spot key system |
| CN109682590A (en) * | 2019-02-18 | 2019-04-26 | 昆山洺九机电有限公司 | A kind of keyboard test machine and test equipment |
| CN111337279A (en) * | 2020-02-28 | 2020-06-26 | 南通大学 | Electric operating table fatigue detection device and detection method thereof |
| CN111256926A (en) * | 2020-03-18 | 2020-06-09 | 三门县点帆环保科技有限公司 | Combined key elasticity detection device on automotive interior trim part |
| CN111256926B (en) * | 2020-03-18 | 2021-09-10 | 叶怡晴 | Combined key elasticity detection device on automotive interior trim part |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180119 |
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| WW01 | Invention patent application withdrawn after publication |