CN201117220Y - Piano keyboard cap buffer - Google Patents
Piano keyboard cap buffer Download PDFInfo
- Publication number
- CN201117220Y CN201117220Y CNU2007201079410U CN200720107941U CN201117220Y CN 201117220 Y CN201117220 Y CN 201117220Y CN U2007201079410 U CNU2007201079410 U CN U2007201079410U CN 200720107941 U CN200720107941 U CN 200720107941U CN 201117220 Y CN201117220 Y CN 201117220Y
- Authority
- CN
- China
- Prior art keywords
- damper
- sliding plug
- hairspring
- compression spring
- way throttle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Electrophonic Musical Instruments (AREA)
Abstract
The utility model relates to a piano fingerboard cover buffer, which comprises a bracket, a deoscillator and a rocker, wherein a spring damping mechanism is arranged in the deoscillator, and a one-way throttling hole control mechanism is installed between the spring damping mechanism and the sliding plug. The spring damping mechanism comprises a compression spring and a compression spring base. The one-way throttling hole control mechanism comprises a hairspring and a hairspring base. A one-way throttling hole is arranged on the sliding plug, an oil outlet hole is arranged on a connecting bar, and an upper cavity and a lower cavity are communicated through the one-way throttling hole and the oil outlet hole. Therefore, the buffer has the advantage of providing double insurance to guarantee the stable close of the fingerboard cover.
Description
Technical field
The utility model relates to the snubber assembly on a kind of piano, especially relates to a kind of piano keyhoard cover impact damper.
Background technology
In early days, piano keyhoard cover with on hinge connection and the sidewall, is realized the opening and closing of piano keyhoard cover usually by the rotation of hinge.But piano keyhoard cover is heavier, if misoperation is arranged when closing slightly, the keyboard lid can be closed suddenly because of the effect of the effect of self gravitation or external force, thereby the keyboard of bump piano may cause damage to keyboard lid or keyboard, even may clip to user's finger.Simultaneously, listen attentively to the people of music or exercise around the huge noise that sends also can have influence in bump.In order to overcome above-mentioned problem, occurred the piano keyhoard cover impact damper on the market, but the impact damper of being sold is because structural defective is not fully up to expectations on the effect.
As the patent No. 200420014855.1 " piano keyhoard cover snubber assembly ", comprise the tailstock on egative film, diagonal brace, sway brace and the egative film, between the bottom of described sway brace and tailstock, connect a pressure buffer device, the nested transition pin in the upper end of described sway brace is provided with a slider bar simultaneously on the relevant position of piano keyhoard cover.In the close key disk cover, the corresponding transition pin of slider bar, the sway brace of following compression buffer, and then promote to come the fltting speed of control piston by one-way throttle hole on the control piston as the piston on the gas-liquid damping unit of snubber assembly.Said structure can be realized stable the closing of keyboard lid to a certain extent, and the setting of transition pin and slider bar makes this device can be close to the keyboard lid again and can not damage the keyboard lid.But, only utilize the lubricating oil in the damper, the stability that the keyboard lid is closed is not high, insurance inadequately yet.
Summary of the invention
The utility model mainly is to solve above-mentioned technical matters, thereby provides a kind of double insurance that can provide to guarantee the stable piano keyhoard cover impact damper of closing of keyboard lid.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: comprise support, damper and rocking bar, one end of rocking bar is connected with support with damper respectively, and the other end of damper and support also is connected to each other, in described damper, be provided with spring damping mechanism, between the sliding plug of this spring damping mechanism and damper, one-way throttle hole control gear be installed.
Connect by a stationary shaft between rocking bar and the support, rocking bar can rotate around stationary shaft; And connect by a movable axis between rocking bar and the damper, this movable axis is connected on the connecting rod of damper; The other end of damper and support is connected by a stationary shaft simultaneously.When rocking bar pressed down, the point of fixity of rocking bar and support did not move, and just rotate, and the point of fixity of rocking bar and damper had then both rotated and moves, and promoted connecting rod indentation damper the inside gradually, guaranteed stable the closing that keyboard covers.General damper generally is unidirectional hydraulic damper, and the utility model then is provided with a spring damping mechanism in addition in damper, as another heavy insurance, utilizes compression spring to guarantee stable closing, especially the final stage distance of closing of keyboard lid.One-way throttle hole control gear then and between the sliding plug cooperates, and guarantees the circulation of the hydraulic oil of the inside, plays stable effect of closing the fingerboard impact damper.
As preferably, described spring damping mechanism includes compression spring and compression spring seat, and described compression spring one end withstands on the bottom of damper, and the other end withstands the compression spring seat.
In connecting rod is thought damper, in the indentation, can promote the compression spring seat and move inward, make the compression spring compression to produce reacting force, act on keyboard and cover, guarantee that the keyboard lid can not plunk down.
As preferably, described sliding plug is divided into upper chamber and lower chambers with damper, at sliding connecting rod and the sliding plug ring of being equipped with beyond the Great Wall, simultaneously in the sliding one-way throttle hole that is provided with beyond the Great Wall, be provided with oil outlet on connecting rod, described upper and lower chamber is interconnected by one-way throttle hole and oil outlet.
Sliding beyond the Great Wall the one-way throttle hole and the oil outlet on the connecting rod be interconnected, the one-way throttle hole is communicated with this lower chambers, and oil outlet is communicated with this upper chamber.Therefore, be interconnected between the upper and lower chamber, hydraulic oil also can be communicated with along this path.Sliding plug ring is being posted on the damper inwall tightly then, prevents hydraulic oil under the situation that impact damper does not stress, and flows between the gap between sliding plug and the damper.
As preferably, described one-way throttle hole control gear comprises hairspring and hairspring seat, and described hairspring seat one end is fixed on the compression spring seat, and the other end is over against the one-way throttle hole, and described hairspring one end is enclosed within on the hairspring seat, the other end withstand on sliding beyond the Great Wall.
When rocking bar presses down, act on by connecting rod at first that sliding sliding plug moves down beyond the Great Wall, compression hairspring and touch the hairspring seat.Because this hairspring seat faces the one-way throttle hole, therefore the one-way throttle hole is blocked, make hydraulic oil in the one-way throttle hole, to pass through.
As preferably, described sliding plug ring is enclosed within and slidingly is provided with a ring groove beyond the Great Wall on sliding plug ring, and the lateral wall of this ring groove outwards sticks up opens the inwall of being close to damper.
When moving on to a certain degree in the sliding plug, the pressure that lower chambers produces works to ring groove, makes the lateral wall of ring groove move inward, thereby hydraulic oil is from the gap inflow upper chamber of sliding plug and damper inwall, reduced the pressure of upper chamber, sliding plug can further move down.
Therefore, the utility model is by being provided with spring damping mechanism in damper, between the sliding plug of this spring damping mechanism and damper one-way throttle hole control gear is installed, making the utlity model has to provide double insurance to guarantee the stable advantage of closing of keyboard lid.
Description of drawings
Accompanying drawing 2 is that the utility model is installed in synoptic diagram on the piano;
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, the utility model comprises damper 1 on the whole, rocking bar 4 and support 5.One end of rocking bar 4 is connected with support 5 with damper 1 respectively, and wherein rocking bar 4 then is by a movable axis 41 connecting rod 14 on rocking bar 4 and the damper 1 to be coupled together between rocking bar 4 and the damper 1 by on the stationary shaft 51 fixedly connected supports 5.And a stationary shaft 42 is also arranged on the other end of rocking bar 4, there is a pulley 43 to be installed on the rocking bar 4 by stationary shaft 42.This pulley 43 can rotate flexibly around stationary shaft 42, when piano keyhoard cover is closed, can be close to the keyboard lid and slide, and avoids scratching the keyboard cap surface.And the other end of the other end of support 5 and damper 1 links together.Fix a stationary shaft 52 at the other end of support 5, the other end of damper 1 then has a nonocclusive draw-in groove at this stationary shaft 52, by the cooperation of draw-in groove and stationary shaft 52, damper 1 and support 5 is coupled together.
Bottom in the inside of damper 1 is equipped with spring damping mechanism, between the sliding plug 11 one-way throttle hole control gear is installed in this spring damping mechanism and damper 1.Described spring damping mechanism comprises compression spring 2 and compression spring seat 21, and compression spring 2 one ends are on the bottom surface of damper 1 inside, and the other end withstands compression spring seat 21, and described compression spring seat 21 can be damper 1 inner moving.On the described sliding plug 11 connecting rod 14 is installed, the other end of connecting rod 14 stretches out damper 1 and is connected with rocking bar 4.Described sliding plug 11 is separated into upper chamber 12 and lower chambers 13 with damper 1 inner chamber, in upper and lower chamber 12,13 hydraulic oil is arranged.Have one-way throttle hole 16 in the centre of sliding plug 11 simultaneously, be provided with oil outlet 17 on connecting rod 14, described one-way throttle hole 16 and oil outlet 17 are interconnected, and one-way throttle hole 16 and oil outlet 17 have been communicated with upper chamber 12 and lower chambers 13 simultaneously.Be with sliding plug ring 15 simultaneously on sliding plug 11, a ring groove 18 is arranged on this cunning plug ring 15, the lateral wall 19 of ring groove 18 then outwards sticks up out, on the inwall that is attached to damper 1 tightly.Described one-way throttle hole control structure comprises hairspring 3 and hairspring seat 31.Described hairspring seat 31 1 ends are stuck in the compression spring seat 21, and the other end can be blocked one-way throttle hole 16 over against one-way throttle hole 16.Described hairspring 3 one ends are enclosed within on the hairspring seat 31, and the other end then withstands on the sliding plug 11.The front end of damper 1 then is closed, and has individual cover plate 6 that damper 1 opening is sealed, and then is flange 61 in the lower end of this cover plate 6, and flange 61 is provided with O shape circle 62,63.
Wherein in said structure, the whole and pulley 43 of the shell of damper 1 is all made by makrolon material, has good mechanical property, resistance to impact excellence especially, pulling strengrth, bending strength, compression strenght height; Creep properties is little, dimensionally stable; Have good thermotolerance and lower temperature resistance, in wider temperature range, have stable mechanical property and dimensional stability.And sliding plug ring 15 and O shape circle 62,63 have styrene-butadiene rubber and make, and have wear-resisting, anti-unaccelerated aging, anti-ozone, water-fast, impermeability and the good advantage of homogeneity.
The novel installation of this use is shown in 2, and the utility model is installed in below the preceding keyboard lid 7 and back keyboard lid 8 of piano.Support 5 is provided with screw hole, with wood screw the back keyboard that support 5 is fixed on piano is covered 8 times, and rocking bar 4 stretches out below preceding keyboard lid 7.When current keyboard lid 7 is closed, can be pressed on the pulley 43 of rocking bar 4.
The course of work of the present utility model is as follows: preceding keyboard lid 7 presses down, and is pressed on the pulley 43, makes rocking bar 4 rotate around stationary shaft 51.Rocking bar 4 promotes connecting rod 14 when rotating, make sliding plug 11 to damper 1 inner moving.Sliding plug 11 at first is compression hairspring 3, thereby makes hairspring seat 31 block one-way throttle hole 16 when moving, and makes hydraulic oil not flow by one-way throttle hole 16 and oil outlet 17.Cause compression spring seat 21 to promote compression spring 2 then and move inward, when moving certain the time, it is big that the pressure of lower chambers 13 constantly becomes.If keep this pressure to become big always, rocking bar 4 just can not rotate when certain the time.Therefore, pressure is time certain, can act on the ring groove 18, make lateral wall 19 inwardly partially, hydraulic oil flows into upper chamber 12 by the gap of sliding plug 11 and damper 1 inwall from lower chambers 13, reduces the pressure of lower chambers 13, make rocking bar 4 to be rotated further, and preceding keyboard lid 7 can be closed.Because spring damping mechanism and hydraulic oil together work, making the utlity model has to provide double insurance to guarantee the stable advantage of closing of keyboard lid.
When opening, hairspring seat 31 leaves one-way throttle hole 16, and hydraulic oil flows into lower chambers 13 from upper chamber 12, and rocking bar 4 is returned to the origin-location.
Claims (5)
1. piano keyhoard cover impact damper, comprise support, damper and rocking bar, one end of rocking bar is connected with support with damper respectively, and the other end of damper and support also is connected to each other, it is characterized in that in described damper (1), being provided with spring damping mechanism, between the sliding plug (11) of this spring damping mechanism and damper (1), one-way throttle hole control gear is installed.
2. piano keyhoard cover impact damper according to claim 1, it is characterized in that described spring damping mechanism includes compression spring (2) and compression spring seat (21), described compression spring (2) one ends withstand on the bottom of damper (1), and the other end withstands compression spring seat (21).
3. piano keyhoard cover impact damper according to claim 1, it is characterized in that described sliding plug (11) is divided into upper chamber (12) and lower chambers (13) with damper (1), connecting rod (14) and sliding plug ring (15) are installed on sliding plug (11), on sliding plug (11), be provided with one-way throttle hole (16) simultaneously, on connecting rod (14), be provided with oil outlet (17), described upper and lower chamber (12,13) is interconnected by one-way throttle hole (16) and oil outlet (17).
4. piano keyhoard cover impact damper according to claim 1, it is characterized in that described one-way throttle hole control gear comprises hairspring (3) and hairspring seat (31), described hairspring seat (31) one ends are fixed on the compression spring seat (21), the other end is over against one-way throttle hole (16), described hairspring (3) one ends are enclosed within on the hairspring seat (31), and the other end withstands on the sliding plug (11).
5. piano keyhoard cover impact damper according to claim 3, it is characterized in that described sliding plug ring (15) is enclosed within on the sliding plug (11), be provided with a ring groove (18) on sliding plug ring (15), the lateral wall (19) of this ring groove (18) outwards sticks up opens the inwall of being close to damper (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201079410U CN201117220Y (en) | 2007-04-10 | 2007-04-10 | Piano keyboard cap buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201079410U CN201117220Y (en) | 2007-04-10 | 2007-04-10 | Piano keyboard cap buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117220Y true CN201117220Y (en) | 2008-09-17 |
Family
ID=39991797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201079410U Expired - Lifetime CN201117220Y (en) | 2007-04-10 | 2007-04-10 | Piano keyboard cap buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117220Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360538A (en) * | 2018-12-10 | 2019-02-19 | 吴怡 | A kind of fingerboard cover board descending lifeline |
| CN109979419A (en) * | 2017-12-28 | 2019-07-05 | 卡西欧计算机株式会社 | Lid opening/closing device and keyboard instrument |
-
2007
- 2007-04-10 CN CNU2007201079410U patent/CN201117220Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979419A (en) * | 2017-12-28 | 2019-07-05 | 卡西欧计算机株式会社 | Lid opening/closing device and keyboard instrument |
| CN109360538A (en) * | 2018-12-10 | 2019-02-19 | 吴怡 | A kind of fingerboard cover board descending lifeline |
| CN109360538B (en) * | 2018-12-10 | 2024-05-07 | 吴怡 | Piano keyboard cover plate descent control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108027005B (en) | Buffer | |
| US7243394B2 (en) | Door closing hinge device | |
| CN101787830B (en) | Hinge device | |
| US7966696B2 (en) | Hinge having a damping device | |
| JP2012521500A (en) | Furniture hinges | |
| CN101535587A (en) | Buried type hinge apparatus having automatic return function | |
| CN201117220Y (en) | Piano keyboard cap buffer | |
| US20190226235A1 (en) | Latch Bolt Buffer Structure For Lock Body | |
| US491898A (en) | Spring-hinge and check | |
| CN106703576B (en) | A kind of elastic damping runner adjustment structure of sliding door of furniture | |
| CN111058709A (en) | Integrated damping optimizing structure of furniture hinge | |
| CN204984034U (en) | Load -carrying members about push -and -pull door | |
| CN201827283U (en) | Damping buffer | |
| CN201133439Y (en) | Damper for furniture | |
| CN201705853U (en) | Damping buffer | |
| CN109386200B (en) | Auxiliary opening and closing structure of sliding door | |
| CN202575139U (en) | Pedal type rubbish can with buffering cover and buffering hinge | |
| CN203214754U (en) | Gas-assisted hydraulic damper | |
| CN206917472U (en) | Wide-angle door hinge | |
| CN211666494U (en) | Integrated damping optimizing structure of furniture hinge | |
| CN204283048U (en) | The automatic homing door-hinge of tool adjustable buffering | |
| CN209556715U (en) | A kind of pneumatic door closer-holder of hinge-type | |
| CN201850888U (en) | Hinge | |
| CN201705851U (en) | Damping buffer | |
| CN220415111U (en) | Cabinet door upturning hinge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |
|
| CX01 | Expiry of patent term |