CN201689655U - Keyboard cover rotating mechanism - Google Patents
Keyboard cover rotating mechanism Download PDFInfo
- Publication number
- CN201689655U CN201689655U CN2010201963653U CN201020196365U CN201689655U CN 201689655 U CN201689655 U CN 201689655U CN 2010201963653 U CN2010201963653 U CN 2010201963653U CN 201020196365 U CN201020196365 U CN 201020196365U CN 201689655 U CN201689655 U CN 201689655U
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- CN
- China
- Prior art keywords
- dwang
- rotating mechanism
- keyboard
- cover rotating
- keyboard cover
- 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 discloses a keyboard cover rotating mechanism, comprising a rotating rod and a rotating rod shaft, one end of the rotating rod shaft is inserted in a side arm of an America piano, the other end of the rotating rod shaft is provided with a convex part, one end of the rotating rod is fixedly connected with a front keyboard cover, the other end of the rotating rod is provided with a round hole, a notch is arranged on the round hole, the notch is matched with the convex part in shape, the convex part enters the round hole through the notch, and the rotating rod is articulated with the side arm by the rotating rod shaft. The keyboard cover rotating mechanism has simple and reasonable structure and is convenient for assembly and disassembly.
Description
Technical field
The utility model relates to the keyboard lid of piano and opens stopping device, is specifically related to a kind of keyboard cover rotating mechanism.
Background technology
Existing keyboard cover rotating mechanism, unreasonable structure, the structure of rotating mechanism is: an end of dwang is opened a circular hole, the dwang axle is that an articulated column adds bolt, one end kind of articulated column is gone into side arm, the other end passes the circular hole of dwang, and with bolt one end of dwang is located, and dwang forms hinged by dwang axle and side arm.Such rotating mechanism, installation and removal are very inconvenient: in the time of installation, need plant side arm to an end of dwang axle earlier, the circular hole that the other end is aimed at dwang passes, the bolt of tightening again on the dwang axle is located dwang, in the time of dismounting, need split out the bolt that is tightened on the dwang axle earlier to come.Such installation and removal process, not only inconvenient, and damage and scratch side arm and preceding keyboard lid easily.When piano needs temperament or maintenance, also need dismounting and rotating mechanism is installed.
The utility model content
The utility model provides a kind of simple and reasonable for structure, the keyboard cover rotating mechanism of easy installation and removal in order to overcome the deficiency that above prior art exists.
The purpose of this utility model realizes by following technical scheme: this keyboard cover rotating mechanism, it is characterized in that: comprise dwang and dwang axle, described dwang axle one end inserts the side arm of American piano, the dwang axle other end is provided with protuberance, and dwang one end is fixedlyed connected with preceding keyboard lid, and the dwang other end is provided with circular hole, circular hole is provided with breach, the shape of breach and protuberance is corresponding, and protuberance enters circular hole by breach, and dwang forms hinged by dwang axle and side arm.
As a kind of preferred structure, the cross section of described protuberance is made of four edges, and two wherein relative limits are the arc limit, and relative two other limit is a straight flange.
Protuberance enters circular hole by breach for convenience, and the distance of described two straight flanges is 4.9mm-5.1mm, and the width of the breach of circular hole is 5.1mm-5.2mm.
Circular hole rotates with respect to protuberance for convenience, and the diameter on described two arc limits is 8.5mm-8.7mm, and the diameter of circular hole is 8.8mm-9.0mm.
Described dwang is made by metal material, and the dwang axle is made by wear-resisting nylon, and dwang just can not wear and tear like this, and the dwang axle is also very wear-resisting, even damaged, changes also very conveniently, and the dwang axle is extracted from side arm and got final product.And this metal and nonmetal between mutual rotation, than used rotating mechanism, its possibility that produces noise also reduces greatly.
As a kind of preferred structure, described dwang one end is connected by two screw retention with preceding keyboard lid.
As a kind of preferred structure, this end that described dwang axle inserts side arm is a hollow-core construction, and appearance has straight knurling.
As a kind of preferred structure, described preceding keyboard covers with back keyboard lid hinged, and back keyboard covers to be placed on the guide rail and also can slide along guide rail.When keyboard covered before raising, dwang rotated with respect to the dwang axle, and preceding keyboard lid promotes the back keyboard and covers, and back keyboard lid down slides along guide rail backward.Keyboard lid before can opening easily.
The utility model has following advantage with respect to prior art:
This keyboard cover rotating mechanism improves existing keyboard cover rotating mechanism, dwang axle one end inserts the side arm of American piano, the dwang axle other end is equipped with protuberance, and dwang one end is fixedlyed connected with preceding keyboard lid, the dwang other end is provided with circular hole, and adds a breach at circular hole, and the shape of breach and protuberance is corresponding, protuberance enters circular hole by breach, and dwang forms hinged by dwang axle and side arm.
Keyboard cover rotating mechanism of the present utility model, rational in infrastructure, mount and dismount very convenient: in the time of installation, earlier dwang axle one end is inserted the side arm of American piano, then two straight flanges of the notch alignment protuberance of dwang are fitted inside, protuberance enters circular hole by breach, and dwang forms hinged by dwang axle and side arm.In the time of dismounting, two straight flanges of the notch alignment protuberance of dwang are released, protuberance breaks away from circular hole by breach, and dwang has also just disassembled easily.Such installation and removal process, not only convenient, and can not damage and scratch side arm and preceding keyboard lid.When piano needs temperament or maintenance, dismantle and install rotating mechanism too easily.
In addition, after protuberance enters circular hole by breach, rotate dwang, two straight flanges of the breach of dwang and protuberance stagger, and dwang just can not come off automatically so, that is to say that only under certain angle, dwang could mount and dismount.
Description of drawings
Fig. 1 is the structural representation of the dwang of keyboard cover rotating mechanism of the present utility model.
Fig. 2 is the structural representation of the dwang axle of keyboard cover rotating mechanism of the present utility model.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the closed condition figure of the rotating mechanism of keyboard cover rotating mechanism of the present utility model.
Fig. 5 is the open mode figure of rotating mechanism of the keyboard cover rotating mechanism of Fig. 4.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Keyboard cover rotating mechanism, comprise dwang 1 and dwang axle 2, its structure such as Fig. 1, Fig. 2, shown in Figure 3, dwang axle 2 one end 2a insert the side arm 3 of American piano, and dwang axle 2 other ends are provided with protuberance 2b, dwang 1 one end 1a cover 4 with preceding keyboard fixedlys connected, dwang 1 other end is provided with circular hole 1b, and circular hole 1b is provided with breach 5, and breach 5 is corresponding with the shape of protuberance 2b, protuberance 2b enters circular hole 1b by breach 5, and dwang 1 forms hinged by dwang axle 2 and side arm 3.
As shown in Figure 3, the cross section of protuberance 2b is made of four edges, and two wherein relative limits are arc limit 6, and relative two other limit is a straight flange 7.
Dwang 1 one end 1a and preceding keyboard lid 4 are fixedlyed connected by two screws 8.
As shown in Figure 2, this end 2a that dwang axle 2 inserts side arm 3 is a hollow-core construction, and appearance has straight knurling.
As shown in Figure 4 and Figure 5, it is 9 hinged that preceding keyboard lid 4 and back keyboard cover, and back keyboard lid 9 is placed on the guide rail 10 and also can slides along guide rail 10.When keyboard covered 4 before raise, dwang 1 rotated with respect to dwang axle 2, and preceding keyboard lid 4 promotes back keyboards lid 9, and back keyboard covers 9 and down slides along guide rail 10 backward.Keyboard lid 4 before can opening easily.
Above-mentioned embodiment is a preferred embodiment of the present utility model; can not limit the utility model; other any change that does not deviate from the technical solution of the utility model and made or other equivalent substitute mode are included within the protection domain of the present utility model.
Claims (8)
1. keyboard cover rotating mechanism, it is characterized in that: comprise dwang and dwang axle, described dwang axle one end inserts the side arm of American piano, the dwang axle other end is provided with protuberance, and dwang one end is fixedlyed connected with preceding keyboard lid, and the dwang other end is provided with circular hole, circular hole is provided with breach, the shape of breach and protuberance is corresponding, and protuberance enters circular hole by breach, and dwang forms hinged by dwang axle and side arm.
2. keyboard cover rotating mechanism according to claim 1 is characterized in that: the cross section of described protuberance is made of four edges, and two wherein relative limits are the arc limit, and relative two other limit is a straight flange.
3. keyboard cover rotating mechanism according to claim 2 is characterized in that: the distance of described two straight flanges is 4.9mm-5.1mm, and the width of breach is 5.1mm-5.2mm.
4. keyboard cover rotating mechanism according to claim 2 is characterized in that: the diameter on described two arc limits is 8.5mm-8.7mm, and the diameter of circular hole is 8.8mm-9.0mm.
5. keyboard cover rotating mechanism according to claim 1 is characterized in that: described dwang is made by metal material, and the dwang axle is made by wear-resisting nylon.
6. keyboard cover rotating mechanism according to claim 1 is characterized in that: described dwang one end is connected by two screw retention with preceding keyboard lid.
7. keyboard cover rotating mechanism according to claim 1 is characterized in that: this end that described dwang axle inserts side arm is a hollow-core construction, and appearance has straight knurling.
8. keyboard cover rotating mechanism according to claim 1 is characterized in that: the keyboard lid is hinged with back keyboard lid before described, and back keyboard lid is placed on the guide rail and can slides along guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201963653U CN201689655U (en) | 2010-05-12 | 2010-05-12 | Keyboard cover rotating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201963653U CN201689655U (en) | 2010-05-12 | 2010-05-12 | Keyboard cover rotating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689655U true CN201689655U (en) | 2010-12-29 |
Family
ID=43377934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201963653U Expired - Lifetime CN201689655U (en) | 2010-05-12 | 2010-05-12 | Keyboard cover rotating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426424A (en) * | 2012-05-17 | 2013-12-04 | 卡西欧计算机株式会社 | Keyboard device |
| WO2019053532A3 (en) * | 2017-09-12 | 2019-11-14 | Stroller Tech Limited | Improved trailer / glider board and engagement means thereof |
-
2010
- 2010-05-12 CN CN2010201963653U patent/CN201689655U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426424A (en) * | 2012-05-17 | 2013-12-04 | 卡西欧计算机株式会社 | Keyboard device |
| CN103426424B (en) * | 2012-05-17 | 2016-09-28 | 卡西欧计算机株式会社 | Key board unit |
| WO2019053532A3 (en) * | 2017-09-12 | 2019-11-14 | Stroller Tech Limited | Improved trailer / glider board and engagement means thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |
|
| CX01 | Expiry of patent term |