CN206516332U - A kind of fingerboard with weather-proof fulcrum - Google Patents
A kind of fingerboard with weather-proof fulcrum Download PDFInfo
- Publication number
- CN206516332U CN206516332U CN201720207893.6U CN201720207893U CN206516332U CN 206516332 U CN206516332 U CN 206516332U CN 201720207893 U CN201720207893 U CN 201720207893U CN 206516332 U CN206516332 U CN 206516332U
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- key
- metal
- black
- white key
- fulcrum
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Abstract
The utility model belongs to piano field, discloses a kind of fingerboard with weather-proof fulcrum.Including keyboard frame, several black keys, several white keys, the rear end of keyboard frame is installed with rear shelves, bail is equipped with the top of the rear end of black key and white key, before above in the middle part of keyboard frame, position is installed with a metal bar respectively afterwards, before the central bottom of each black key or white key, position offers an arc notch respectively afterwards, turnably the metal sleeve being adapted to it is embedded with the arc notch of black key bottom back or in the arc notch of white key bottom front edge, the top shape of the arc notch of black key bottom front edge or the arc notch of white key bottom back respectively with metal bar in front and the metal bar of back is adapted.The utility model leans on the cooperation of metal sleeve and metal bar as fulcrum, is the friction between metal and metal, it is not easy to influenceed, be unlikely to deform by weather, with good weatherability.
Description
Technical field
The utility model belongs to piano field, and in particular to a kind of fingerboard with weather-proof fulcrum.
Background technology
Piano enjoys great prestige the music circles with its broad range, the performance performance of graceful tone color and uniqueness, be referred to as musical instrument it
King.Piano is the key that piano is impacted by using hand, key is produced up and down motion, the up and down motion of key, which is passed to, hits string
Machine, then string is beaten by hammered string instrument send sound.Fingerboard is the important component of piano struck string machinery, and it includes key
Preceding shelves, middle-grade and rear shelves, the forward and backward position in the top of preceding shelves and middle-grade are installed with plate rail, some black keys, some white keys, keyboard frame
Put and be equipped with two row's pins（Heel row pin is that used in black key, front-seat pin is used in white key）, after black key is placed in by its rear end
Shelves top is upper, in the pin-and-hole in the middle part of the heel row pin insertion black key in middle-grade, the heel row pin insertion black key front end bottom on preceding shelves
Position and be arranged on keyboard frame in the pin-and-hole in portion, white key is placed in the front-seat pin at the top of rear shelves in upper, middle-grade by its rear end
Position in the pin-and-hole of front-seat pin insertion white key front bottom end in pin-and-hole in the middle part of insertion white key, on preceding shelves and be arranged in keyboard
On frame.During piano, black key or white key move up and down by fulcrum of the contact point of pin on the pin-and-hole and middle-grade in the middle part of it.By
Metalwork is generally in pin, and middle-grade is wood material, therefore middle-grade is easily deformed by the cold and hot of weather, deforms it
The fulcrum of key is caused to be uneven afterwards, key descending depth is different, feel, hammer double hit tone color are played in influence.
Utility model content
It is of the present utility model to overcome existing fingerboard to cause the rugged defect of fulcrum because middle-grade deforms
Purpose is to provide a kind of fingerboard with weather-proof fulcrum.
To achieve the above object, the technical scheme that the utility model is taken is as follows：
A kind of fingerboard with weather-proof fulcrum, including keyboard frame, several black keys, several white keys, keyboard frame
Rear end is installed with rear shelves, is equipped with bail at the top of the rear end of black key and white key, it is particular in that：
Forward and backward position above in the middle part of keyboard frame is installed with the middle bottom of a metal bar, each black key or white key respectively
The forward and backward position in portion offers an arc notch respectively, in the arc notch of black key bottom back or white key bottom front edge arc
Turnably the metal sleeve being adapted to it is embedded with v notch v（Turnable be embedded refers to：Metal sleeve is in embedded arc
Rotation by a small margin can be also done after in breach in arc notch, be it is relative " in the fixedly embedded arc notch of metal sleeve and
Can not rotate " for）, the arc notch of black key bottom front edge or the arc notch of white key bottom back（This is at two
Arc notch is prevents black key or white key can meet another metal bar in dropping process from designing）Respectively with it is preceding
The top shape of the metal bar on side and the metal bar of back is adapted；
The bottom of metal sleeve is provided with U-shaped sheet metal（Prevent metal sleeve from moving up and down）, width≤metal of sheet metal
The width of sleeve pipe, the segmental arc size of sheet metal is adapted with the bottom of metal sleeve and both are in close contact, sheet metal
Two perpendicular ends are upward through black key or white key respectively, and flanging is fixed at the top of black key or white key again；
The metal sleeve of black key bottom is located on the metal bar of back, and the metal sleeve of white key bottom is located in front
Metal bar on, a spacing ring is respectively set on the metal bar of metal sleeve both sides（Prevent metal sleeve from moving left and right）, and
The spacing ring width sum of metal sleeve width and its both sides≤and the black key or the width of white key of metal sleeve corresponding position；
The arc notch that black key is placed in upper, black key bottom front edge at the top of rear shelves by its rear end is turnably connected to front
Metal bar on（Turnable clamping refers to：Arc notch can also be done after being connected on metal bar on metal bar
Rotate by a small margin, be with respect to for " arc notch is fixed and is connected on metal bar and can not rotate "）And the row of positioning
It is listed on keyboard frame；
The arc notch that white key is placed in upper, white key bottom back at the top of rear shelves by its rear end is turnably connected to back
Metal bar on and position be arranged on keyboard frame.
Preferably, the metal sleeve has 1/2 to be partially submerged into arc notch.
Preferably, 0mm<External diameter≤20mm of metal sleeve, can so make the position of forward and backward two metal bar closer to biography
The position of two row's pins in the original middle-grade of piano of uniting, the black key and white key of adjacent position also can positioning arrangement on keyboard frame,
The external diameter of metal sleeve is as small as possible within this range, and key fulcrum so of the present utility model is closer to traditional fingerboard
Key fulcrum.
Preferably, the metal sleeve is bearing holder (housing, cover) or graphite copper sheathing（The uniform copper sheathing for being inlaid with graphite on circumference）.This
That, because having a small amount of lubricating oil in bearing holder (housing, cover), the graphite of graphite copper sheathing also has lubrication, be more beneficial for metal sleeve with
Metal bar is the front and rear rotation that axle does certain angle, gives full play to the point action of metal sleeve.
Metal sleeve has one fixed width in itself, it is already possible to is oriented to key well and declines, but to be preferably oriented to key
Vertically decline without shifting, the forward and backward position that the front end of preferably keyboard frame is installed with the top of preceding shelves, preceding shelves is respectively equipped with two
Pin is arranged, black key front bottom end is provided with the pin-and-hole being engaged with the heel row pin on preceding shelves, and white key front bottom end is provided with and preceding shelves
On the pin-and-hole that is engaged of front-seat pin, in the pin-and-hole of the heel row pin insertion black key front bottom end on preceding shelves, on preceding shelves before
In the pin-and-hole for arranging pin insertion white key front bottom end.
Preferably, the top of the bail is provided with fore-set.
Preferably, the spacing ring is clip.
Preferably, black key and/or the rear end sidepiece of white key are provided with counterweight lead.
Beneficial effect：
1st, traditional piano is to coordinate by the pin-and-hole on the pin and key in middle-grade as fulcrum, is between metal and wood
Friction, wood is easily influenceed by weather, and the utility model is innovated to the fulcrum of fingerboard, and the utility model is to lean on
The cooperation of metal sleeve and metal bar, as fulcrum, is the friction between metal and metal, it is not easy to influenceed, be difficult by weather
Deformation, with good weatherability, key fulcrum remains at a horizontal level, and key descending depth is stable, plays hand
Sense and hammer double hit tone color are stable.
2nd, the pin in the utility model without middle-grade and above, prevents the deformation due to middle-grade from causing key to block
Pin and be unable to resilience.
Brief description of the drawings
Fig. 1：By taking black key as an example, side structure schematic view of the present utility model；
Fig. 2：By taking white key as an example, side structure schematic view of the present utility model；
Wherein, shelves after shelves before 1- keyboard frames, 2- black keys, 3- white keys, 4-, 5-, 6- pins, 7- bails, 8- fore-sets, 9- counterweights
Lead, 10- pin-and-holes, 11- metal bars, 12- arc notch, 13- graphite copper sheathings, 14- sheet metals.
Embodiment 1
Using in face of player one end before, be away from player one end after, as illustrated in fig. 1 and 2, one kind have weather-proof fulcrum
Fingerboard, including keyboard frame 1,36 black keys 2,52 white keys 3, shelves 4 before the forward and backward two ends of keyboard frame 1 are installed with respectively
With rear shelves 5, the forward and backward position at the preceding top of shelves 4 is respectively equipped with two row's pins 6（Heel row is that used in black key 2, front row is the institute of white key 3
With）, bail 7 is equipped with the top of the rear end of black key 2 and white key 3, and the top of bail 7 is provided with the rear end of fore-set 8, black key 2 and white key 3
Sidepiece is provided with counterweight lead 9, and the front bottom end of black key 2 is provided with before the pin-and-hole 10 being engaged with the heel row pin 6 on preceding shelves 4, white key 3
End bottom is provided with the pin-and-hole 10 being engaged with the front-seat pin 6 on preceding shelves 4, and it is particular in that：
Forward and backward position above the middle part of keyboard frame 1 is installed with a metal bar 11, each black key 2 or white key 3 respectively
Between the forward and backward position in bottom offer an arc notch 12 respectively, in the arc notch 12 of the bottom back of the black key 2 or bottom of white key 3
The turnable graphite copper sheathing 13 for being embedded with the external diameter 16mm being adapted to it, the graphite copper sheathing in portion's arc notch 12 in front
13 have 1/2 to be partially submerged into arc notch 12, the arc notch 12 of the bottom front edge of black key 2 or the arc of the bottom back of white key 3
Top shape of the breach 12 respectively with metal bar 11 in front and the metal bar 11 of back is adapted；
The bottom of graphite copper sheathing 13 is provided with U-shaped sheet metal 14, the width of width≤metal sleeve of sheet metal 14, sheet metal
14 segmental arc size is adapted with the bottom of graphite copper sheathing 13 and both are in close contact, two perpendicular ends of sheet metal 14 respectively to
On through black key 2 or white key 3, flanging is fixed on black key 2 or the top of white key 3 again；
The graphite copper sheathing 13 of the bottom of black key 2 is located on the metal bar 11 of back, and the graphite copper sheathing 13 of the bottom of white key 3 is worn
It is located on metal bar 11 in front, a clip is respectively set on the metal bar 11 of the both sides of graphite copper sheathing 13（It is not shown）, and stone
The clip width sum of the black width of copper sheathing 13 and its both sides≤and the black key 2 or the width of white key 3 of the corresponding position of graphite copper sheathing 13
Degree；
Black key 2 is placed in the turnable clamping of arc notch 12 of the upper, bottom front edge of black key 2 at the top of rear shelves 5 by its rear end
Positioning arrangement in the pin-and-hole 10 of the insertion front bottom end of black key 2 of heel row pin 6 on metal bar 11 in front, on preceding shelves 4
On keyboard frame 1；
White key 3 is placed in the turnable clamping of arc notch 12 of upper, the bottom back of white key 3 at the top of rear shelves 5 by its rear end
Positioning arrangement in the pin-and-hole 10 of the insertion front bottom end of white key 3 of front-seat pin 6 on the metal bar 11 of back, on preceding shelves 4
On keyboard frame 1.
When playing, the front end of player's finger down black key 2 or white key 3, the front end of black key 2 or white key 3 is sold on preceding shelves 4
Moved downward under the guide effect of nail 6, the rear end of black key 2 or white key 3 is then lifted up, and the fore-set 8 at the top of rear end, which then beats, to be hit
String machine, hammered string instrument beats string and sends sound again；When unclamping black key 2 or white key 3, the front end of black key 2 or white key 3 is transported upwards again
Dynamic, the rear end of black key 2 or white key 3 then moves downward on rear shelves 5.According to music score, so sequentially double hit black key 2 or white key 3,
It can complete to play.
Claims (8)
1. after a kind of fingerboard with weather-proof fulcrum, including keyboard frame, several black keys, several white keys, keyboard frame
Hold and be installed with rear shelves, bail is equipped with the top of the rear end of black key and white key, it is characterised in that：
Forward and backward position above in the middle part of keyboard frame is installed with a metal bar respectively, before the central bottom of each black key or white key,
Position offers an arc notch respectively afterwards, in the arc notch of black key bottom back or white key bottom front edge arc notch
It is interior to be turnably embedded with the metal sleeve being adapted to it, the arc notch of black key bottom front edge or the arc of white key bottom back
Top shape of the v notch v respectively with metal bar in front and the metal bar of back is adapted；
The bottom of metal sleeve is provided with U-shaped sheet metal, the width of width≤metal sleeve of sheet metal, the segmental arc chi of sheet metal
Very little to be adapted with the bottom of metal sleeve and both close contacts, two perpendicular ends of sheet metal are upward through black key or white key respectively
Flanging is fixed at the top of black key or white key again；
The metal sleeve of black key bottom is located on the metal bar of back, and the metal sleeve of white key bottom is located in gold in front
Belong on cross bar, respectively set a spacing ring on the metal bar of metal sleeve both sides, and metal sleeve width and its both sides is spacing
Ring width sum≤and the black key or the width of white key of metal sleeve corresponding position；
The arc notch that black key is placed in upper, black key bottom front edge at the top of rear shelves by its rear end is turnably connected to gold in front
Position and be arranged on keyboard frame on category cross bar；
The arc notch that white key is placed in upper, white key bottom back at the top of rear shelves by its rear end is turnably connected to the gold of back
Position and be arranged on keyboard frame on category cross bar.
2. there is the fingerboard of weather-proof fulcrum as claimed in claim 1, it is characterised in that：The metal sleeve has 1/2
Divide in embedded arc notch.
3. there is the fingerboard of weather-proof fulcrum as claimed in claim 1, it is characterised in that：0mm<The external diameter of metal sleeve≤
20mm。
4. the fingerboard with weather-proof fulcrum as described in claim 1 ~ 3 is any, it is characterised in that：The metal sleeve is
Bearing holder (housing, cover) or graphite copper sheathing.
5. there is the fingerboard of weather-proof fulcrum as claimed in claim 1, it is characterised in that：Before the front end of keyboard frame is installed with
Forward and backward position at the top of shelves, preceding shelves is respectively equipped with two row's pins, and black key front bottom end is provided with to match with the heel row pin on preceding shelves
The pin-and-hole of conjunction, white key front bottom end is provided with the heel row pin insertion on the pin-and-hole being engaged with the front-seat pin on preceding shelves, preceding shelves
In the pin-and-hole of black key front bottom end, in the pin-and-hole of the front-seat pin insertion white key front bottom end on preceding shelves.
6. there is the fingerboard of weather-proof fulcrum as claimed in claim 1, it is characterised in that：The top of the bail is provided with top
Post.
7. there is the fingerboard of weather-proof fulcrum as claimed in claim 1, it is characterised in that：The spacing ring is clip.
8. there is the fingerboard of weather-proof fulcrum as claimed in claim 1, it is characterised in that：The rear end of black key and/or white key
Sidepiece is provided with counterweight lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720207893.6U CN206516332U (en) | 2017-03-06 | 2017-03-06 | A kind of fingerboard with weather-proof fulcrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720207893.6U CN206516332U (en) | 2017-03-06 | 2017-03-06 | A kind of fingerboard with weather-proof fulcrum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206516332U true CN206516332U (en) | 2017-09-22 |
Family
ID=59869801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720207893.6U Expired - Fee Related CN206516332U (en) | 2017-03-06 | 2017-03-06 | A kind of fingerboard with weather-proof fulcrum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206516332U (en) |
-
2017
- 2017-03-06 CN CN201720207893.6U patent/CN206516332U/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 |
Granted publication date: 20170922 Termination date: 20200306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |