CN2621328Y - Buffer device for keyboard cover of piano - Google Patents
Buffer device for keyboard cover of piano Download PDFInfo
- Publication number
- CN2621328Y CN2621328Y CN 03265876 CN03265876U CN2621328Y CN 2621328 Y CN2621328 Y CN 2621328Y CN 03265876 CN03265876 CN 03265876 CN 03265876 U CN03265876 U CN 03265876U CN 2621328 Y CN2621328 Y CN 2621328Y
- Authority
- CN
- China
- Prior art keywords
- piano
- keyboard
- cover
- keyboard cover
- spring damping
- 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
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Abstract
The utility model provides a piano keyboard cover cushioning device. Regarding the utility model, a hydraulic damper is fixed on a sidewall where angle iron is arranged. An axis of rotation of the damper is permanently connected to the front end of a junction panel through an attachment frame of the axis of rotation. The back end of the junction panel is articulated with the front end of a connecting rod. The back end of the connecting rod is articulated with the front end of a support board. An installation base plate is provided on the back end of the support board. The attachment frame of the axis of rotation can be provided with a spring damping mechanism having a crown bar. When the utility model is used, the device can be connected to a back cover and a cover of a keyboard through the installation angle iron and the installation base plate. When the keyboard cover is closed, the hydraulic damper and the spring damping mechanism produce damping action on rotation of the keyboard cover; falling speed of the keyboard cover is reduced. The utility model prevents hands of users, in particular to hands of children, from being injured, and prevents the piano from being impacted, due to rapidly falling of the keyboard cover. In addition, an opening spacing structure can be provided on the device, so as to prevent the keyboard cover from being opened too large, and the upper door and the cushioning device from being damaged.
Description
Technical field
The utility model relates to a kind of piano keyhoard cover snubber assembly.
Background technology
Connect by loose-leaf between existing piano keyhoard cover and the keyboard bonnet, because loose-leaf does not have damping action, when the close key disk cover, because the action of gravity of firmly artificial and keyboard lid itself, the keyboard lid can fall fast, not only can clash into the piano body, and may cause unexpected injury, therefore be necessary to provide a kind of device that can lower keyboard lid falling speed people's hand.
The utility model content
For overcoming the above-mentioned defective of prior art, the utility model provides a kind of keyboard lid snubber assembly, the falling speed when using this device can lower the keyboard lid to close.
The technical scheme that the utility model solves the above-mentioned technological deficiency of prior art is: the piano keyhoard cover snubber assembly comprises unidirectional hydraulic damper, shaft holder, web joint, connecting rod and support plate, described hydraulic damper is fixed on the sidewall that angle bar is installed, its rotating shaft is fixed in the shaft holder, described shaft holder is connecting described web joint front end, described web joint rear end is hinged with described connecting rod front end, described rod rear end is hinged with described front edge of board, described support plate rear end is provided with the installation base plate, and described installation base plate is divided into an oblique angle with the main part of described support plate.
Described shaft holder is provided with spring damping mechanism, this spring damping mechanism is provided with the push rod that an end leans out, this push rod becomes an oblique angle with described web joint, it is positioned at the compression spring that the in-house other end of spring damping is connecting this spring damping mechanism, when link sidewalls was pressed to this push rod, this push rod was with stressed this compression spring that reaches.Can be provided with stopper slot on the described shaft holder, the sidewall of described installation angle bar is provided with the gag lever post that cooperates with this stopper slot.
Using method of the present utility model and principle of work are: according to position shown in the accompanying drawing 2, by described installation angle bar with install that base plate is connected to the keyboard bonnet with this device and keyboard covers, when opening the keyboard lid, be fixed on the support plate drivening rod motion of covering side, and then the rotating shaft of pulling connection hydraulic damper clockwise rotates, this moment, hydraulic damper was in the undamped state, can like a cork the keyboard lid be opened, when being opened to enough big angle, stopper slot coincide with gag lever post, make the stop motion of keyboard lid, avoid the keyboard lid open excessive and collision to the doorstep, and can avoid in the keyboard lid cargo handling process motion bad snubber assembly of bit loss.When the close key disk cover, the related hydraulic damper rotating shaft of web joint together is rotated counterclockwise, hydraulic damper produces damping to the rotation of keyboard lid, and its damping force increases progressively with the increase of keyboard lid rotational angle, stop too fast the falling of keyboard lid thus, after being closed to certain angle when spending (can be set to usually 25 rise), link sidewalls contacts and presses down the push rod of spring damping mechanism, push rod produces resistance to connecting rod under the effect of compression spring, further increased the damping action that the keyboard lid is fallen, because these damping actions make keyboard cover when closing and are fallen gently.
Because a plurality of parts that the piano keyhoard cover snubber assembly that the utility model provides is provided with unidirectional hydraulic damper and cooperates with it, keyboard is covered when closing, be subjected to hydraulic damping, simultaneously also owing to be provided with spring damping mechanism, further strengthened the damping action when approaching closing, greatly slowed down the falling speed when the keyboard lid is closed, in addition because this device also is provided with the unlatching position-limit mechanism, limited the open angle of keyboard lid, the bump of when having avoided the keyboard lid to open piano having been called and to the damage of snubber assembly.
Description of drawings
Fig. 1 is a main TV structure synoptic diagram of the present utility model;
Fig. 2 is that the utility model is installed in the main TV structure synoptic diagram on the piano;
Fig. 3 is the look up structural representation corresponding with Fig. 2;
Fig. 4 is the movement locus synoptic diagram that adopts piano keyhoard cover of the present utility model.
Embodiment
Referring to Fig. 1-Fig. 4, the piano keyhoard cover snubber assembly that the utility model provides comprises unidirectional hydraulic damper 2, web joint 6, connecting rod 3 and support plate 4, described hydraulic damper 2 is fixed on the sidewall that angle bar 7 is installed, its rotating shaft by shaft holder 9 fixedly connected described web joint 6 front ends, described web joint 6 rear ends are hinged with described connecting rod 3 front ends, described connecting rod 3 rear ends are hinged with described support plate 4 front ends, described support plate 4 rear ends are provided with installs base plate 5, and described installation base plate 5 is divided into an oblique angle with the main part of described support plate 4.
Described shaft holder 9 also is provided with spring damping mechanism 1, this spring damping mechanism 1 is provided with the push rod 8 that an end leans out, 6 one-tenth one oblique angles of this push rod 8 and described web joint, it is positioned at the compression spring 12 that the in-house other end of spring damping is connecting this spring damping mechanism, the elastic strength that leans out length, spring 12 of described push rod 8 and compression degree have constituted the qualification to the size of the start angle of spring damping and damping force, can select correlation parameter as required.
Can be provided with stopper slot on the described shaft holder 9, the sidewall of described installation angle bar 7 is provided with the gag lever post that cooperates with this stopper slot.The relative engagement position of described stopper slot and gag lever post constitutes the restriction that keyboard is covered maximum open angle, can set according to actual needs, and described gag lever post can adopt bolt so that install.
During use, described installation angle bar 7 can use screw to be fastened on the lower surface of keyboard bonnet 10 sides, and the installation base plate 5 of described support plate 4 is fastened on keyboard and covers on 11 sides.
" preceding ", " back ", D score, " right side ", " interior " etc. are only represented the relative position of relevant each parts under state shown in Figure 1 to the statement in orientation in the utility model instructions and claims, do not constitute the restriction to true bearing.
Claims (5)
1. piano keyhoard cover snubber assembly, it is characterized in that comprising unidirectional hydraulic damper, web joint, connecting rod and support plate, the rotating shaft of described unidirectional hydraulic damper is connecting described web joint front end by shaft holder, described web joint rear end is hinged with described connecting rod front end, and described rod rear end is hinged with described front edge of board.
2. piano keyhoard cover snubber assembly as claimed in claim 1 is characterized in that described unidirectional hydraulic damper is fixed on the sidewall that angle bar is installed, and described support plate rear end is provided with the installation base plate, and described installation base plate is divided into an oblique angle with the main part of described support plate.
3. piano keyhoard cover snubber assembly as claimed in claim 1 or 2, it is characterized in that described shaft holder is provided with spring damping mechanism, this spring damping mechanism is provided with the push rod that an end leans out, this push rod becomes an oblique angle with described web joint, and it is positioned at the compression spring that the in-house other end of spring damping is connecting this spring damping mechanism.
4. piano keyhoard cover snubber assembly as claimed in claim 3 is characterized in that shaft holder is provided with stopper slot, and the sidewall of described installation angle bar is provided with the gag lever post that cooperates with this stopper slot.
5. piano keyhoard cover snubber assembly as claimed in claim 4 is characterized in that described installation angle bar uses screw to be fastened on the lower surface of fingerboard bonnet side, and the installation base plate of described support plate is fastened on the piano keyhoard cover side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265876 CN2621328Y (en) | 2003-06-06 | 2003-06-06 | Buffer device for keyboard cover of piano |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265876 CN2621328Y (en) | 2003-06-06 | 2003-06-06 | Buffer device for keyboard cover of piano |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2621328Y true CN2621328Y (en) | 2004-06-23 |
Family
ID=34256100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03265876 Expired - Lifetime CN2621328Y (en) | 2003-06-06 | 2003-06-06 | Buffer device for keyboard cover of piano |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2621328Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432478C (en) * | 2005-10-12 | 2008-11-12 | 拓基轴承株式会社 | Buffer unit using rotating damper |
| 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 |
| CN104867480A (en) * | 2014-02-26 | 2015-08-26 | 雅马哈株式会社 | Keyboard musical instrument |
| CN105741827A (en) * | 2016-04-22 | 2016-07-06 | 宜昌金宝乐器制造有限公司 | Integrated automatically opening-closing music stand and key cover |
-
2003
- 2003-06-06 CN CN 03265876 patent/CN2621328Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432478C (en) * | 2005-10-12 | 2008-11-12 | 拓基轴承株式会社 | Buffer unit using rotating damper |
| 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 |
| CN104867480A (en) * | 2014-02-26 | 2015-08-26 | 雅马哈株式会社 | Keyboard musical instrument |
| CN105741827A (en) * | 2016-04-22 | 2016-07-06 | 宜昌金宝乐器制造有限公司 | Integrated automatically opening-closing music stand and key cover |
| CN105741827B (en) * | 2016-04-22 | 2023-04-07 | 宜昌金宝乐器制造有限公司 | Integrated automatic opening and closing music stand and key cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130606 Granted publication date: 20040623 |