CN106706287A - Piano key cover buffer detection device and detection method - Google Patents
Piano key cover buffer detection device and detection method Download PDFInfo
- Publication number
- CN106706287A CN106706287A CN201611107008.3A CN201611107008A CN106706287A CN 106706287 A CN106706287 A CN 106706287A CN 201611107008 A CN201611107008 A CN 201611107008A CN 106706287 A CN106706287 A CN 106706287A
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- CN
- China
- Prior art keywords
- lid
- key
- key cover
- buffer
- side plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Escalators And Moving Walkways (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
The invention relates to a piano key cover buffer detection device which comprises a key cover, a side plate, a frame, a pushing mechanism, a reset mechanism, a gravity sensor and an in-place sensor. The key cover comprises a front key cover and a rear key cover. The rear key cover is fixed on the frame. The front key cover rotates around the rear key cover up and down. The side plate which is used for mounting the buffer in contact with the front key cover is fixed on the frame. The pushing mechanism which pushes the front key cover from the turn up position to a natural falling state, the reset mechanism which pushes the front key cover from the cover down position to the turn up position, the gravity sensor which senses the pressure of the front key cover which naturally falls to the cover down position, and the in-place sensor which senses whether the front key cover falls in place to the cover down position are arranged on the frame. The invention further relates to a piano key cover buffer detection method. According to the invention, the test situation is biased towards the actual mounting scene and the actual use situation; an acquired result is accurate; and the detection device and the detection method belong to the technical field of piano part detection devices.
Description
Technical field
The present invention relates to the testing equipment of piano parts, specifically, it is related to the detection means of piano key cover buffer
And detection method.
Background technology
For the safe handling of piano, it is often necessary to key lid reload buffer device, in order to avoid hand clamping.
, it is necessary to inspect by random samples to ensure quality after buffer production in enormous quantities.Authorization Notice No. is the practicality of CN201269818Y
New patent discloses detection apparatus for piano key cover falling retarder, including motion and controller, and motion includes support, consolidates
Fixed board, portable plate and compensating cylinder, one end of balance bar are hinged by push rod and portable plate, and the other end and support are hinged.During test,
Descending lifeline is installed, is moved by the flexible drive portable plate analog key lid of compensating cylinder, realize the opening and closing of portable plate,
And then descending lifeline is tested.But this detection means has as a drawback that：(1) using fixed plate and the group of portable plate
Close, not using key lid, have difference with actual installation scene.(2) portable plate is driven by the flexible pressure of compensating cylinder and opened and closed, key drowning
There is the process that nature was descended, whole process is all that external force drives, and the actually used situation with key lid is not inconsistent.(3) because deviateing
Actual installation scene and actually used situation, testing result are inaccurate.
The content of the invention
For technical problem present in prior art, the purpose of the present invention is：A kind of reality for being partial to buffer is provided
Installation scenario and actually used situation, so that the testing result more accurately detection means of piano key cover buffer and detection side
Method.
In order to achieve the above object, the present invention is adopted the following technical scheme that：
The detection means of piano key cover buffer, including key lid, side plate, frame, pushing mechanism, resetting-mechanism, gravity-feed tank
Answer device, in place inductor；Key lid includes preceding key lid and rear key lid, and rear key lid is fixed in frame, and preceding key lid is covered around rear key and turned over
Rise and rotated between position and the lower position of lid；Side plate for installing the buffer contacted with preceding key lid is fixed on frame；Will be preceding
Key lid is pushed into the pushing mechanism of nature falling state from position is dug, preceding key lid is pushed back the reset for digging position from the lower position of lid
The gravity sensor of pressure when covering lower position is dropped down onto before mechanism, sensing under key lid nature, position under lid is dropped down onto under key lid before sensing
When whether inductor in place in place is installed in frame.
As it is a kind of preferably, rear key lid is by the clamp that is symmetrical set for a pair in frame；Installed in frame
There is alarm lamp.
As it is a kind of preferably, key lid is respectively arranged on the left side and the right side side plate corresponding with two buffers of left and right；Side plate includes
Boarding positioned at inner side and the installation metallic plate positioned at outside, in buffer insertion boarding.
As one kind preferably, the detection means of piano key cover buffer also includes two horizontal strokes being parallel to each other in the horizontal plane
Shelves, crosspiece extends along fore-and-aft direction, and one block of side plate is arranged on a crosspiece；Side plate front and back position it is adjustable be fixed on it is right
Answer on crosspiece, crosspiece right position is adjustable to be fixed in frame.
As one kind preferably, crosspiece is provided with the straight trough extended along fore-and-aft direction, and it is straight that side plate is fixed by screws in this
In groove；Frame is provided with the straight trough extended along left and right directions, and crosspiece is fixed by screws in the straight trough.
As one kind preferably, pushing mechanism includes pushing motor, turbine and worm mechanism, pushing block, push arm；Push arm is fixed on and pushes away
The front end of block, the pushing motor being fixed in frame drives pushing block anterior-posterior translation, pushing block to drive push arm by worm-and-wheel gear
Translation, nature falling state is pushed into forward from the rear side of the preceding key lid in position is dug by preceding key lid.
As one kind preferably, the quantity of push arm is two, symmetrical to be fixed on pushing block；The head of push arm is provided with guarantor
Protection pad；Pushing mechanism is provided with the preceding inductor and rear inductor of limitation push arm front and back position.
As a kind of preferred, the end of the tooth bar of rackwork, the reset motor in frame is fixed on by rack-and-pinion
Mechanism drives wheel alternating translational between front lower place and back upper place, preceding key lid is pushed back from the lower position of lid and digs position；Reset
Mechanism is provided with the preceding inductor and rear inductor that limitation wheel translates position.
The detection method of piano key cover buffer, using the detection means of piano key cover buffer, buffer is installed on
Between side plate and key lid corresponding with buffer model, with the actual installation scene of analogue buffer；Simulated by pushing mechanism
Staff thrust is caused that preceding key is covered and can down drop down onto position under lid naturally in the presence of buffer, simulated on staff by resetting-mechanism
Key lid enables that preceding key lid is returned to and digs position before lift, so that the test condition of buffer is close to actually used situation.
As one kind preferably, side plate is equipped with Multiple Type, and the model according to buffer selects the side plate of corresponding model, and
The product key lid of selection correspondence model.
Principle of the invention is：By the combination of side plate and key lid, approached to buffer offer to be tested and truly used
The installation scenario of situation；By the setting of pushing mechanism, the staff close to true service condition is provided to buffer to be tested
Depression power；By the setting of resetting-mechanism, above carried to the staff that buffer to be tested is provided close to true service condition
Operating physical force.Whole test environment is close with true service condition, and the test result for drawing is more accurate.
Generally speaking, the invention has the advantages that：
1. the installation scenario of buffer to be tested and service condition deflection actual installation scene and actually used situation, obtain
The result for obtaining is more accurate.
2. the side plate of Multiple Type is equipped with, while coordinate the fore-aft adjustable formula of side plate to install, the left/right adjustable peace of crosspiece
Assembling structure so that the highly versatile of test device, it is adaptable to the piano buffer of all models.
3. pushing mechanism and resetting-mechanism simple structure, it is easy to manufacture, are easy to safeguard.
4. gravity sensor is used, can test whether impulse force when preceding key lid drops to lid time position to lower section conforms to
Ask.
5. using inductor in place, generally position lower using photoelectric sensor measurement lid when before key lid and gravity sensor it
Between whether there is gap, whether in place to judge preceding key lid.
6. pushing mechanism and resetting-mechanism are respectively provided with forward and backward inductor, limit travel position, save the testing time.
7. simple structure, easy to operate, is automatically testing after once mounting, and engineer need to be according to without real-time monitoring, only
Manual intervention is carried out according to alarm modulating signal.
Brief description of the drawings
Fig. 1 is the front view of the detection means of piano key cover buffer.
Fig. 2 is the top view of the detection means of piano key cover buffer.
Fig. 3 is the left view of the detection means of piano key cover buffer.
Wherein, 1 is preceding key lid, and 2 is rear key lid, and 3 is side plate, and 4 is frame, and 5 is fixture, and 6 is alarm lamp, and 7 is crosspiece, 8
It is pushing motor, 9 is pushing block, and 10 is push arm, and 11 is reset motor, and 12 is tooth bar, and 13 is wheel, and 14 is gravity sensor, 15
It is neonychium, 16 is buffer.
To install metallic plate, 3-2 is boarding to 3-1.
Specific embodiment
Come that the present invention will be further described in detail below.
The detection means of piano key cover buffer, including key lid, side plate, frame, pushing mechanism, resetting-mechanism, gravity-feed tank
Answer device, in place inductor, alarm lamp, fixture, crosspiece.
Key lid includes preceding key lid and rear key lid, using the true parts of piano, coordinates the model of buffer to select.Key afterwards
By the clamp that is symmetrical set for a pair in frame, preceding key lid exists lid around the hinge centres that rear key covered at angle end are located at
Dig and rotated between position and the lower position of lid.
Being respectively arranged on the left side and the right side for key lid is arranged on a side with the left and right corresponding side plate of two buffers, a buffer
On plate.Side plate includes the boarding and the installation metallic plate positioned at outside positioned at inner side, in buffer insertion boarding, peace
Dress plank is fixed on installation metallic plate.Boarding is provided with Multiple Type, and correspondence installs the buffer of Multiple Type.
The quantity of crosspiece is two, is parallel to each other in the horizontal plane, and crosspiece extends along fore-and-aft direction, and one block of side plate is installed
On a crosspiece.Side plate front and back position is adjustable to be fixed on correspondence crosspiece, and crosspiece right position is adjustable to be fixed on
In frame.Crosspiece is provided with the straight trough extended along fore-and-aft direction, and side plate is fixed by screws in the straight trough, and side plate may be selected
The fixed front and back position in straight trough, to adapt to different key lids.Frame is provided with the straight trough extended along left and right directions, frame
Front-end and back-end be equipped with straight trough, the front-end and back-end of crosspiece are fixed by screws in the straight trough, and crosspiece may be selected
Fixed right position in straight trough, to adapt to different key lids.
Pushing mechanism includes pushing motor, turbine and worm mechanism, pushing block, push arm.Push arm is fixed on the front end of pushing block, fixed
Pushing motor in frame drives pushing block anterior-posterior translation by worm-and-wheel gear, and pushing block drives push arm anterior-posterior translation, from
Preceding key lid is pushed into forward nature falling state in the rear side of the preceding key lid for digging position, now preceding key lid is buffered by buffer
Fall.The quantity of push arm is two, symmetrical to be fixed on pushing block；The head of push arm is provided with neonychium.Pushing mechanism sets
The preceding inductor and rear inductor of restricted push arm front and back position.The running of pushing mechanism is as follows：Pushing motor is rotated, and is pushed away
Block and push arm are translated forward, and key covers to fall naturally in the presence of buffer before promoting, and push arm stops in the presence of preceding inductor
Only move forward, pushing motor reversion, pushing block and push arm are translated backward, push arm is moved after stopping in the presence of rear inductor, promotes electricity
Machine is rotated forward again, so circulation, and simulation staff repeats the action of key lid before closing.As long as be pushed into for preceding key lid by pushing mechanism
Natural falling state, cover completely lower state without being pushed into.
Resetting-mechanism includes reset motor, pinion and rack, wheel.Wheel free to rotate is fixed on rack-and-pinion
The end of the tooth bar of mechanism, wheel uses rubber wheel, prevents key lid before scratch, wheel from being rotated with the change in location of preceding key lid.
The reset motor being fixed in frame drives wheel alternating translational between front lower place and back upper place by pinion and rack, will
Preceding key lid is pushed back from the lower position of lid and digs position.Resetting-mechanism is provided with the preceding inductor of limitation wheel translation position and rear sensing
Device.The running of resetting-mechanism is as follows：Reset motor is rotated, and wheel forward downward resets, effect of the wheel in preceding inductor
Lower to stop reach, reset motor reversal, wheel is moved rearwardly and upwardly, preceding key lid is pushed back from the lower position of lid and digs position, wheel
Moved after stopping in the presence of rear inductor, reset motor is rotated forward again, so circulation, simulate key lid before staff repeats to open
Action.
The detection method of piano key cover buffer, using the detection means of piano key cover buffer, comprises the following steps：Choosing
The model of side plate and key lid is selected, buffer is installed between two blocks of side plates and key lid, adjust a left side before and after key is covered in frame
Right position, with the actual installation scene of analogue buffer；Staff thrust is simulated by pushing mechanism and causes that preceding key is covered in buffer
In the presence of can down drop down onto the lower position of lid naturally, key lid before lift simulated on staff by resetting-mechanism enable that preceding key lid is returned to and turn over
Position is played, by pushing mechanism and the interoperation of resetting-mechanism, key lid before repeatedly opening and closing, so that the test condition of buffer connects
Nearly actually used situation.
When under each lid of preceding key lid, beat on the gravity sensor of front lower place, key is covered under buffer effect before sensing
Closing impact, meanwhile, key lid and gravity before inductor in place (the selecting photoelectric sensor) measurement immediately ahead of gravity sensor
Gap between inductor, whether in place key lid decline before judging.If all gone well, test process by continue to setting when
Between, or untill reaching the testing time of setting.If impulsive force is too big or preceding key lid is closed not in place, detection means stops fortune
OK, alarm lamp is bright, points out engineer's interventional procedure.
The mounting structure and buffer of the assembling structure between preceding key lid and rear key lid, buffer and key lid and side plate
Mounting structure is prior art.
Above-described embodiment is the present invention preferably implementation method, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. the detection means of piano key cover buffer, it is characterised in that：Including key lid, side plate, frame, pushing mechanism, reset machine
Structure, in place gravity sensor, inductor；Key lid includes preceding key lid and rear key lid, and rear key lid is fixed in frame, and preceding key lid is around rear
Key is covered and rotated between position under digging position and lid；Side plate for installing the buffer contacted with preceding key lid is fixed on frame
On；By preceding key lid from digging position and be pushed into the pushing mechanism of nature falling state, preceding key lid is pushed back from the lower position of lid and digs position
The gravity sensor of pressure when covering lower position is dropped down onto before resetting-mechanism, the sensing put under key lid nature, is dropped down onto under key lid before sensing
Whether inductor in place in place is installed in frame during position under lid.
2. according to the detection means of the piano key cover buffer described in claim 1, it is characterised in that：Key lid is left by a pair afterwards
Right symmetrically arranged clamp is in frame；Alarm lamp is installed in frame.
3. according to the detection means of the piano key cover buffer described in claim 1, it is characterised in that：The left and right sides of key lid point
Side plate corresponding with two buffers of left and right is not provided with；Side plate includes the boarding and the installation metal positioned at outside positioned at inner side
Plate, in buffer insertion boarding.
4. according to the detection means of the piano key cover buffer described in claim 1, it is characterised in that：Also include two in level
The crosspiece being parallel to each other on face, crosspiece extends along fore-and-aft direction, and one block of side plate is arranged on a crosspiece；Side plate front and back position
Adjustable is fixed on correspondence crosspiece, and crosspiece right position is adjustable to be fixed in frame.
5. according to the detection means of the piano key cover buffer described in claim 4, it is characterised in that：Crosspiece is provided with along preceding
The straight trough that rear direction extends, side plate is fixed by screws in the straight trough；Frame is provided with the straight trough extended along left and right directions,
Crosspiece is fixed by screws in the straight trough.
6. according to the detection means of the piano key cover buffer described in claim 1, it is characterised in that：Pushing mechanism includes promoting
Motor, turbine and worm mechanism, pushing block, push arm；Push arm is fixed on the front end of pushing block, and the pushing motor being fixed in frame passes through snail
Worm and gear mechanism drives pushing block anterior-posterior translation, pushing block to drive push arm translation, and the rear side from the preceding key lid in position is dug will be preceding
Key lid is pushed into forward nature falling state.
7. according to the detection means of the piano key cover buffer described in claim 6, it is characterised in that：The quantity of push arm is two
Root, it is symmetrical to be fixed on pushing block；The head of push arm is provided with neonychium；Pushing mechanism is provided with limitation push arm front and back position
Preceding inductor and rear inductor.
8. according to the detection means of the piano key cover buffer described in claim 1, it is characterised in that：Resetting-mechanism includes resetting
Motor, pinion and rack, wheel；Wheel free to rotate is fixed on the end of the tooth bar of pinion and rack, is fixed on
Reset motor in frame drives wheel alternating translational between front lower place and back upper place by pinion and rack, by preceding key lid
Pushed back from the lower position of lid and dig position；Resetting-mechanism is provided with the preceding inductor and rear inductor that limitation wheel translates position.
9. the detection method of piano key cover buffer, using the piano key cover buffer any one of claim 1 to 8
Detection means, it is characterised in that：Buffer is installed between side plate and key lid corresponding with buffer model, with simulated cushioned
The actual installation scene of device；Causing that preceding key is covered by pushing mechanism simulation staff thrust can fall naturally in the presence of buffer
To lower position is covered, enable that preceding key lid is returned to by key lid before lift on resetting-mechanism simulation staff and dig position, so that buffer
Test condition close to actually used situation.
10. according to the detection method of the piano key cover buffer described in claim 9, it is characterised in that：Side plate is equipped with various types
Number, the model according to buffer selects the side plate of corresponding model, and selects the product key lid of correspondence model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107008.3A CN106706287B (en) | 2016-12-06 | 2016-12-06 | Detection device and detection method for piano key cover buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107008.3A CN106706287B (en) | 2016-12-06 | 2016-12-06 | Detection device and detection method for piano key cover buffer |
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| Publication Number | Publication Date |
|---|---|
| CN106706287A true CN106706287A (en) | 2017-05-24 |
| CN106706287B CN106706287B (en) | 2023-07-28 |
Family
ID=58936047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611107008.3A Active CN106706287B (en) | 2016-12-06 | 2016-12-06 | Detection device and detection method for piano key cover buffer |
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| Country | Link |
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| CN (1) | CN106706287B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107301854A (en) * | 2017-06-29 | 2017-10-27 | 温州职业技术学院 | The piano of piano lid slow descending device |
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| US20020139236A1 (en) * | 2001-03-30 | 2002-10-03 | Paul Sandifer | Keyboard instrument |
| CN201081795Y (en) * | 2007-03-19 | 2008-07-02 | 蔡赋勇 | Slow descending device for piano keyboard cover |
| CN201269818Y (en) * | 2008-11-04 | 2009-07-08 | 海伦钢琴股份有限公司 | Detection apparatus for piano key cover falling retarder |
| CN104464706A (en) * | 2013-09-19 | 2015-03-25 | 株式会社河合乐器制作所 | Fallboard arrangement for keyboard instrument and opening and closing device for fallboard |
| CN205483530U (en) * | 2016-02-22 | 2016-08-17 | 群光电子(苏州)有限公司 | Key machine is examined to high -efficient keyboard |
| CN206353080U (en) * | 2016-12-06 | 2017-07-25 | 广州珠江钢琴集团股份有限公司 | The detection means of piano key cover buffer |
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2016
- 2016-12-06 CN CN201611107008.3A patent/CN106706287B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020139236A1 (en) * | 2001-03-30 | 2002-10-03 | Paul Sandifer | Keyboard instrument |
| CN201081795Y (en) * | 2007-03-19 | 2008-07-02 | 蔡赋勇 | Slow descending device for piano keyboard cover |
| CN201269818Y (en) * | 2008-11-04 | 2009-07-08 | 海伦钢琴股份有限公司 | Detection apparatus for piano key cover falling retarder |
| CN104464706A (en) * | 2013-09-19 | 2015-03-25 | 株式会社河合乐器制作所 | Fallboard arrangement for keyboard instrument and opening and closing device for fallboard |
| CN205483530U (en) * | 2016-02-22 | 2016-08-17 | 群光电子(苏州)有限公司 | Key machine is examined to high -efficient keyboard |
| CN206353080U (en) * | 2016-12-06 | 2017-07-25 | 广州珠江钢琴集团股份有限公司 | The detection means of piano key cover buffer |
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| 梁剑非: "钢琴的美观与安全探讨", 《现代商贸工业》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107301854A (en) * | 2017-06-29 | 2017-10-27 | 温州职业技术学院 | The piano of piano lid slow descending device |
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| Publication number | Publication date |
|---|---|
| CN106706287B (en) | 2023-07-28 |
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