TWM582213U - Eccentric-arranged automatic restoring striking structure - Google Patents

Eccentric-arranged automatic restoring striking structure Download PDF

Info

Publication number
TWM582213U
TWM582213U TW108205843U TW108205843U TWM582213U TW M582213 U TWM582213 U TW M582213U TW 108205843 U TW108205843 U TW 108205843U TW 108205843 U TW108205843 U TW 108205843U TW M582213 U TWM582213 U TW M582213U
Authority
TW
Taiwan
Prior art keywords
striking
locking hole
rod
shaft
instrument
Prior art date
Application number
TW108205843U
Other languages
Chinese (zh)
Inventor
廖村淇
Original Assignee
華星樂器製造股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 華星樂器製造股份有限公司 filed Critical 華星樂器製造股份有限公司
Priority to TW108205843U priority Critical patent/TWM582213U/en
Publication of TWM582213U publication Critical patent/TWM582213U/en

Links

Landscapes

  • Auxiliary Devices For Music (AREA)

Abstract

本創作包含一打擊棒、一供設置該打擊棒的轉軸、一立架與一彈性元件,其中該轉軸具有一設置該打擊棒的桿身、二位於該桿身兩側的邊端與一設置於該桿身且朝向遠離該打擊棒方向的凸塊,該立架具有一基底與二對稱設置於該基底兩側的立柱,該二立柱分別具有一樞接該邊端的套接筒與一鎖接孔,該鎖接孔與該套接筒不在同一垂直線上,且該鎖接孔位於該套接筒下方且朝一樂器的方向偏移,該彈性元件兩端分別固定於該鎖接孔與該凸塊遠離該桿身的一接合元件上;據此由於該套接筒與該鎖接孔不在同一垂直線上,該打擊棒的初始位置會朝遠離該樂器的方向偏移,而可增加該打擊棒的移動距離,亦即該打擊棒可以具有較長的加速距離而增加打擊力道。The creation comprises a striking bar, a rotating shaft for setting the striking bar, a stand and an elastic component, wherein the rotating shaft has a shaft body for setting the striking bar, two side ends on the side of the shaft body and a setting a protrusion facing the shaft and facing away from the striker rod, the stand has a base and two symmetrical columns disposed on two sides of the base, the two columns respectively having a sleeve and a lock pivotally connected to the edge a fixing hole, the locking hole is not on the same vertical line as the socket, and the locking hole is located below the socket and is offset toward an instrument, and the two ends of the elastic component are respectively fixed to the locking hole and the The bump is away from an engaging element of the shaft; accordingly, since the socket is not on the same vertical line as the locking hole, the initial position of the striking rod is offset away from the instrument, and the striking can be increased The moving distance of the rod, that is, the striking rod can have a longer acceleration distance and increase the striking force.

Description

偏心設置的自動回復打擊結構Eccentric setting of automatic reply striking structure

本創作相關於樂器的打擊棒,尤其關於樂器的自動回復打擊結構。This creation is related to the percussion of the instrument, especially regarding the automatic reply striking structure of the instrument.

如美國公告專利US6,822,149 B1及US9,236,038 B1,分別揭露腳踏式打擊器,用於打擊一如大鼓之樂器,其結構主要包含一打擊棒、一腳踏板、一支架與一回復元件,其中該打擊棒為透過一轉軸而樞接在該支架上,踩踏該腳踏板時會牽引該轉軸轉動,可讓該打擊棒以該支架為支點進行轉動,讓該打擊棒由一初始位置移動至一打擊位置,而該樂器則放置於該打擊位置,即可讓該打擊棒敲擊該樂器而發生聲響;又該回復元件為架設於該支架與該轉軸之間,在該轉軸轉動時,該回復元件可以驅使該轉軸回復至轉動前的角度,亦即可驅使該打擊棒由該打擊位置回到該初始位置。For example, US Pat. No. 6,822,149 B1 and US Pat. No. 9,236,038 B1 respectively disclose a pedal striking device for striking an instrument such as a drum. The structure mainly comprises a striking bar, a pedal, a bracket and a returning component. The striking rod is pivotally connected to the bracket through a rotating shaft, and when the pedal is stepped on, the rotating shaft is pulled to rotate, and the striking rod is rotated by the bracket as a fulcrum, and the striking rod is rotated from an initial position. Moving to a striking position, and the instrument is placed in the striking position, so that the striking bar hits the instrument and sounds; and the restoring element is mounted between the bracket and the rotating shaft, when the rotating shaft rotates The returning element can drive the rotating shaft to return to the angle before the rotation, and can also drive the striking rod back to the initial position from the striking position.

請參閱US6,822,149 B1的圖3、圖4,US6,822,149 B1更在該支架(20)上設置一長形穿孔(461),該回復元件(49)先固定於一活動頂塊(48)上,該活動頂塊(48)再樞接於該長形穿孔(461)上,且該回復元件(49)更樞接於該轉軸(21)的一接頭(41)上,由於該回復元件(49)的兩端皆可相對該接頭(41)與該長形穿孔(461)轉動,當該打擊棒(23)於該打擊位置、該初始位置之間擺動時,該回復元件(49)沒有承受剪力(Shear force)而扭曲的問題,亦即該回復元件(49)的回復力可以快速驅使該打擊棒(23)回到該初始位置,讓該打擊棒(23)的運動更顯靈活快速。Referring to Figures 3 and 4 of US 6,822,149 B1, US 6,822,149 B1 further provides an elongated perforation (461) on the bracket (20), and the return element (49) is first fixed to a movable top block (48). The movable top block (48) is pivotally connected to the elongated through hole (461), and the returning member (49) is further pivotally connected to a joint (41) of the rotating shaft (21) due to the returning element. Both ends of (49) are rotatable relative to the joint (41) and the elongated perforation (461). When the striking rod (23) is swung between the striking position and the initial position, the returning element (49) The problem of not being subjected to shearing (Shear force), that is, the restoring force of the returning element (49) can quickly drive the striking rod (23) back to the initial position, so that the movement of the striking rod (23) is more obvious. Flexible and fast.

請再參閱US9,236,038 B1的圖2,US9,236,038 B1更透過讓螺旋彈簧(16)的搖動支點(F16)設置於調整螺母(28)接觸的支架(30)的下表面的技術特徵,讓操作踏板時的彈簧的搖動角度變小,增加踏板的穩定性,而提升踏板的操作性。Please refer to FIG. 2 of US9,236,038 B1, US9,236,038 B1, by letting the rocking fulcrum (F16) of the coil spring (16) be placed on the lower surface of the bracket (30) where the adjusting nut (28) contacts, so that The rocking angle of the spring when the pedal is operated becomes small, the stability of the pedal is increased, and the operability of the pedal is improved.

如上所述的習知技術,目的在於增加該打擊棒的運動靈敏度與踏板的操作性,顯然沒有增加該打擊棒的打擊力道的技術特徵,演奏者在需要較大的打擊力道時,只能增加腳踏的力道,因而容易有踩踏位置失準或失控的問題,顯然有改進的必要。The prior art described above aims to increase the motion sensitivity of the striking bar and the operability of the pedal. Obviously, there is no technical feature that increases the striking force of the striking bar. The player can only increase when a larger striking force is required. The strength of the pedals makes it easy to have problems with the position of the pedaling being out of alignment or out of control. Obviously, there is a need for improvement.

爰此,本創作的主要目的,在於揭露一種偏心設置的自動回復打擊結構,藉以增加打擊棒的打擊力道。Therefore, the main purpose of this creation is to expose an eccentrically set automatic reply striking structure, in order to increase the striking force of the striking stick.

為達上述目的,本創作為一種偏心設置的自動回復打擊結構,用於打擊一樂器,其包含一打擊棒、一轉軸、一立架與一彈性元件,其中該轉軸供設置該打擊棒,該轉軸具有一桿身、二邊端與一凸塊,該桿身設置該打擊棒,該二邊端位於該桿身兩側,該凸塊設置於該桿身且朝向遠離該打擊棒方向,且該凸塊具有一接合元件,該接合元件遠離該桿身。In order to achieve the above object, the present invention is an eccentrically disposed automatic reply striking structure for striking an instrument, comprising a striking bar, a rotating shaft, a stand and an elastic component, wherein the rotating shaft is configured to set the striking bar, The rotating shaft has a shaft, two sides and a protrusion, the shaft is provided with the striking bar, the two ends are located on two sides of the shaft, the protrusion is disposed on the shaft and facing away from the striking rod, and The projection has an engagement element that is remote from the shaft.

該立架具有一基底與二立柱,該二立柱對稱設置於該基底兩側,該二立柱分別具有一套接筒與一鎖接孔,該二套接筒分別樞接該二邊端,又該鎖接孔與該套接筒不在同一垂直線上,且該鎖接孔位於該套接筒下方且朝該樂器的方向偏移,該彈性元件則在拉伸狀態下,兩端分別固定於該鎖接孔與該接合元件上。The stand has a base and two uprights, and the two uprights are symmetrically disposed on two sides of the base. The two uprights respectively have a set of connecting barrels and a locking hole, and the two sets of connecting barrels are respectively pivotally connected to the two ends, and The locking hole is not on the same vertical line as the socket, and the locking hole is located below the socket and is offset toward the instrument. The elastic element is fixed in the tension state. The locking hole is connected to the engaging element.

據此,透過「該套接筒與該鎖接孔不在同一垂直線上,該鎖接孔為朝該樂器的方向偏移」的結構設計,由於該凸塊為朝向遠離該打擊棒方向,因此該彈性元件牽扯該凸塊朝該樂器的方向偏移時,會讓該打擊棒遠離該樂器,也就是說,該打擊棒的初始位置會朝遠離該樂器的方向偏移,而可增加該打擊棒的移動距離,故該打擊棒可以具有較長的加速距離而增加打擊力道。Accordingly, the structure is designed such that the sleeve is not in the same vertical line as the lock hole, and the lock hole is offset toward the instrument. Since the bump is oriented away from the striker, the When the elastic element is biased toward the direction of the instrument, the striker is moved away from the instrument, that is, the initial position of the striker is offset away from the instrument, and the striker can be added. The moving distance, so the striking bar can have a longer acceleration distance and increase the striking force.

有關本創作技術內容、特點與功效,在以下配合參考圖式之較佳實施例的詳細說明中,將可清楚的呈現。The details, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

請參閱圖1、圖2、圖3與圖4所示,本創作為一種偏心設置的自動回復打擊結構,用於打擊一樂器10,其包含一打擊棒20、一轉軸30、一立架40與一彈性元件50,其中該轉軸30供設置該打擊棒20,該轉軸30具有一桿身31、二邊端32與一凸塊33,該桿身31設置該打擊棒20,該二邊端32位於該桿身31兩側,該凸塊33設置於該桿身31且朝向遠離該打擊棒20方向,且該凸塊33具有一接合元件331,該接合元件331為遠離該桿身31。Referring to FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , the present invention is an eccentrically arranged automatic reply striking structure for striking a musical instrument 10 , which comprises a striking rod 20 , a rotating shaft 30 , and a vertical frame 40 . And the elastic member 50, wherein the rotating shaft 30 is provided with the striking rod 20, the rotating shaft 30 has a shaft 31, two ends 32 and a protrusion 33, and the shaft 31 is provided with the striking rod 20, the two ends 32 is located on the two sides of the shaft 31. The protrusion 33 is disposed on the shaft 31 and faces away from the strut 20, and the protrusion 33 has an engaging element 331. The engaging element 331 is away from the shaft 31.

而該立架40具有一基底41與二立柱42,該二立柱42對稱設置於該基底41兩側,該二立柱42分別具有一套接筒421與一鎖接孔422,該二套接筒421分別樞接該二邊端32,又該鎖接孔422與該套接筒421不在同一垂直線上,且該鎖接孔422位於該套接筒421下方且朝該樂器10的方向偏移。該彈性元件50則在拉伸狀態下,兩端分別固定於該鎖接孔422與該接合元件331上。The stand 40 has a base 41 and two uprights 42. The two posts 42 are symmetrically disposed on opposite sides of the base 41. The two posts 42 respectively have a set of sockets 421 and a locking hole 422. The 421 is pivotally connected to the two ends 32, and the locking hole 422 is not on the same vertical line as the socket 421, and the locking hole 422 is located below the socket 421 and is offset toward the instrument 10. The elastic member 50 is fixed to the locking hole 422 and the engaging member 331 at both ends in a stretched state.

且可以依據使用上的需求,選擇該二邊端32的任一個設置該凸塊33。該接合元件331可以為槽輪,該彈性元件50可以為拉伸彈簧,該彈性元件50的一端連接一掛鉤51,該掛鉤51扣合於該接合元件331。又該鎖接孔422可以為長形孔,該彈性元件50遠離該掛鉤51的另一端連接一螺紋柱52,該螺紋柱52穿過該鎖接孔422,且該螺紋柱52於該鎖接孔422的兩側分別螺鎖一上螺帽521與一下螺帽522。該螺紋柱52與該鎖接孔422之間更可以設置一保護襯套53,該保護襯套53可以避免該螺紋柱52與該鎖接孔422直接接觸,而增加該螺紋柱52與該鎖接孔422的使用壽命。另該彈性元件50內可以穿套一長桿54,該長桿54可以提供結構的剛性,以保護該彈性元件50,避免該彈性元件50受到外力而扭曲。And the bump 33 can be set by selecting any one of the two ends 32 according to the requirements in use. The engaging element 331 can be a sheave. The elastic element 50 can be a tension spring. One end of the elastic element 50 is connected to a hook 51. The hook 51 is fastened to the engaging element 331. The locking member 422 can be an elongated hole. The other end of the elastic member 50 is connected to a threaded post 52. The threaded post 52 passes through the locking hole 422, and the threaded post 52 is locked. An upper nut 521 and a lower nut 522 are respectively screwed on both sides of the hole 422. A protective bushing 53 can be further disposed between the threaded post 52 and the locking hole 422. The protective bushing 53 can prevent the threaded post 52 from directly contacting the locking hole 422, and the threaded post 52 and the lock are added. The service life of the hole 422. In addition, a long rod 54 can be sleeved in the elastic member 50, and the long rod 54 can provide rigidity of the structure to protect the elastic member 50 from being deformed by an external force.

請參閱圖4所示,本創作於實際使用時,為結合於一腳踏板60上,該腳踏板60為透過一鍊條61驅使該轉軸30轉動,當該轉軸30轉動時,即可驅使該打擊棒20打擊該樂器10而發出聲響。Referring to FIG. 4, in actual use, the present invention is coupled to a foot pedal 60 that drives the rotating shaft 30 to rotate through a chain 61. When the rotating shaft 30 rotates, it can be driven. The striker 20 strikes the instrument 10 to make a sound.

又請一併參閱圖3所示,由於該鎖接孔422為朝該樂器10的方向偏移一距離D,且該凸塊33為朝向遠離該打擊棒20方向,因此沒有踩踏該腳踏板60時,該彈性元件50會牽扯該凸塊33朝該樂器10的方向偏移,亦即會讓該打擊棒20遠離該樂器10,也就是說,該打擊棒20的初始位置會朝遠離該樂器10的方向偏移,而增加該打擊棒20的移動距離,換句話說,該打擊棒20可以具有較長的加速距離,而可產生較大的打擊力道。Referring to FIG. 3 together, since the locking hole 422 is offset by a distance D toward the instrument 10, and the protrusion 33 is oriented away from the striking rod 20, the pedal is not stepped on. At 60 o'clock, the elastic member 50 will be biased toward the direction of the musical instrument 10, that is, the striking rod 20 will be moved away from the musical instrument 10, that is, the initial position of the striking rod 20 will be away from the The direction of the musical instrument 10 is shifted, and the moving distance of the striking rod 20 is increased. In other words, the striking rod 20 can have a longer acceleration distance, and a larger striking force can be generated.

如上所述,本創作的特點,至少包含:As mentioned above, the features of this creation include at least:

1.透過讓該套接筒與該鎖接孔不在同一垂直線上的技術特徵,增加該打擊棒的打擊力道;更明確的說,該鎖接孔為朝該樂器的方向偏移,且該凸塊為朝向遠離該打擊棒的方向,因此該彈性元件會牽扯該凸塊朝該樂器的方向偏移,亦即該打擊棒會遠離該樂器,因此該打擊棒的初始位置會朝遠離該樂器的方向偏移,而可增加該打擊棒的移動距離,亦即該打擊棒可以具有較長的加速距離而增加該打擊棒的打擊力道。1. Increasing the striking force of the striking rod by the technical feature that the sleeve is not on the same vertical line as the locking hole; more specifically, the locking hole is offset toward the instrument, and the convex The block is oriented away from the striking rod, so the elastic element will be biased toward the direction of the instrument, that is, the striking rod will be away from the instrument, so the initial position of the striking rod will be away from the instrument. The direction is offset, and the moving distance of the striking bar can be increased, that is, the striking bar can have a longer acceleration distance and increase the striking force of the striking bar.

2.於該螺紋柱與該鎖接孔之間設置該保護襯套,藉由該保護襯套避免該螺紋柱與該鎖接孔直接接觸,可以增加該螺紋柱與該鎖接孔的使用壽命。2. The protective bushing is disposed between the threaded post and the locking hole, and the protective bushing prevents the threaded post from directly contacting the locking hole, thereby increasing the service life of the threaded post and the locking hole .

3.於該彈性元件內穿套該長桿,可透過該長桿的結構剛性來抵抗外力的壓迫,避免該彈性元件扭曲變形。3. The long rod is inserted into the elastic member, and the structural rigidity of the long rod can be used to resist the compression of the external force to avoid the deformation of the elastic member.

D‧‧‧距離 10‧‧‧樂器 20‧‧‧打擊棒 30‧‧‧轉軸 31‧‧‧桿身 32‧‧‧邊端 33‧‧‧凸塊 331‧‧‧接合元件 40‧‧‧立架 41‧‧‧基底 42‧‧‧立柱 421‧‧‧套接筒 422‧‧‧鎖接孔 50‧‧‧彈性元件 51‧‧‧掛鉤 52‧‧‧螺紋柱 521‧‧‧上螺帽 522‧‧‧下螺帽 53‧‧‧保護襯套 54‧‧‧長桿 60‧‧‧腳踏板 61‧‧‧鍊條 D‧‧‧Distance  10‧‧‧ musical instruments  20‧‧‧Beat stick  30‧‧‧ shaft  31‧‧‧ shaft  32‧‧‧Edge  33‧‧‧Bumps  331‧‧‧ Engagement components  40‧‧‧ stand  41‧‧‧Base  42‧‧‧ column  421‧‧‧ Sockets  422‧‧‧Lock hole  50‧‧‧Flexible components  51‧‧‧ hook  52‧‧‧ threaded column  521‧‧‧Upper nut  522‧‧‧ lower nut  53‧‧‧Protection bushing  54‧‧‧Long pole  60‧‧‧ pedals  61‧‧‧Chapter  

圖1,為本創作自動回復打擊結構結構圖。 圖2,為本創作自動回復打擊結構分解圖。 圖3,為本創作樂器支撐桿結構側視圖。 圖4,為本創作安裝使用示意圖。 Figure 1 is a structural diagram of the automatic reply strike structure of the creation.  Figure 2 is an exploded view of the automatic reply strike structure of the creation.  Figure 3 is a side view of the structure of the instrument support bar.  Figure 4 is a schematic diagram of the installation and use of the creation.  

Claims (6)

一種偏心設置的自動回復打擊結構,用於打擊一樂器,其包含: 一打擊棒; 一供設置該打擊棒的轉軸,該轉軸具有一設置該打擊棒的桿身、二位於該桿身兩側的邊端與一設置於該桿身且朝向遠離該打擊棒方向的凸塊,該凸塊具有遠離該桿身的一接合元件; 一立架,該立架具有一基底與二對稱設置於該基底兩側的立柱,該二立柱分別具有一樞接該邊端的套接筒與一鎖接孔,該鎖接孔與該套接筒不在同一垂直線上,且該鎖接孔位於該套接筒下方且朝該樂器的方向偏移;以及 一彈性元件,該彈性元件在拉伸狀態下,兩端分別固定於該鎖接孔與該接合元件上。 An eccentrically set automatic reply striking structure for striking an instrument comprising:  a baton  a rotating shaft for arranging the striking rod, the rotating shaft has a shaft body for arranging the striking rod, two side ends on both sides of the shaft body and a protrusion disposed on the shaft body and facing away from the striking rod, The bump has an engaging element away from the shaft;  a stand having a base and two symmetrical columns disposed on two sides of the base, the two posts respectively having a sleeve and a locking hole pivotally connected to the edge, the locking hole and the sleeve The cartridge is not on the same vertical line, and the locking hole is located below the socket and offset in the direction of the instrument;  An elastic member, wherein the elastic member is fixed to the locking hole and the engaging member respectively in a stretched state.   如申請專利範圍第1項所述之偏心設置的自動回復打擊結構,其中該凸塊設置於該二邊端的任一個上。The eccentrically disposed automatic reply striking structure of claim 1, wherein the bump is disposed on either one of the two ends. 如申請專利範圍第1項所述之偏心設置的自動回復打擊結構,其中該接合元件為槽輪,該彈性元件為拉伸彈簧,該彈性元件的一端連接一扣合於該接合元件的掛鉤。The eccentrically disposed automatic return striking structure of claim 1, wherein the engaging element is a sheave, the elastic element is a tension spring, and one end of the elastic element is connected to a hook that is fastened to the engaging element. 如申請專利範圍第3項所述之偏心設置的自動回復打擊結構,其中該鎖接孔為長形孔,該彈性元件遠離該掛鉤的另一端連接一螺紋柱,該螺紋柱穿過該鎖接孔,且該螺紋柱於該鎖接孔的兩側分別螺鎖一上螺帽與一下螺帽。The eccentrically disposed automatic repulsion striking structure of claim 3, wherein the locking hole is an elongated hole, and the other end of the elastic element is connected to a threaded post away from the other end of the hook, and the threaded post passes through the locking a hole, and the threaded column is screwed to an upper nut and a lower nut respectively on both sides of the locking hole. 如申請專利範圍第4項所述之偏心設置的自動回復打擊結構,其中該螺紋柱與該鎖接孔之間更設置一保護襯套。The eccentrically disposed automatic repulsion striking structure of claim 4, wherein a protective bushing is further disposed between the threaded post and the locking hole. 如申請專利範圍第3項所述之偏心設置的自動回復打擊結構,其中該彈性元件內穿套一長桿。An eccentrically disposed automatic return striking structure as described in claim 3, wherein the elastic member is sheathed by a long rod.
TW108205843U 2019-05-10 2019-05-10 Eccentric-arranged automatic restoring striking structure TWM582213U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW108205843U TWM582213U (en) 2019-05-10 2019-05-10 Eccentric-arranged automatic restoring striking structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW108205843U TWM582213U (en) 2019-05-10 2019-05-10 Eccentric-arranged automatic restoring striking structure

Publications (1)

Publication Number Publication Date
TWM582213U true TWM582213U (en) 2019-08-11

Family

ID=68317105

Family Applications (1)

Application Number Title Priority Date Filing Date
TW108205843U TWM582213U (en) 2019-05-10 2019-05-10 Eccentric-arranged automatic restoring striking structure

Country Status (1)

Country Link
TW (1) TWM582213U (en)

Similar Documents

Publication Publication Date Title
US8373052B2 (en) Pedal apparatus
US8686265B2 (en) Topside spring tension adjuster for bass drum pedals with variable pivot point spring rotor
JP6173999B2 (en) Drum pedal equipment
US20120144976A1 (en) Beater bracket and variable drive lever system with variable pivot point spring rotor for bass drum foot pedals
US7074997B2 (en) Electronic drum pedal
US8884145B1 (en) Percussion device for cajon
TWM582213U (en) Eccentric-arranged automatic restoring striking structure
US20110167984A1 (en) Rotating multi-stem instrument bracket
JP5488985B2 (en) Upright piano type action
JP2003114684A (en) Tremolo device of electric guitar and the electric guitar
US7329810B2 (en) Cymbal crash apparatus
JPH01154094A (en) Piano
GB2528280A (en) Percussion instrument
JP6901409B2 (en) Musical instrument pedal device
US846391A (en) Bass-drum and cymbal beater.
US1092276A (en) Drum and cymbal beater.
US10522121B1 (en) Eccentrically-arranged automatic restoring striking structure
KR880004421A (en) Male piano-type action device
CN210639969U (en) Eccentrically arranged automatic return striking structure
US1209804A (en) Drum and cymbal beater.
JP5492435B2 (en) Piano silencer
JP4518760B2 (en) Piano stringing device
US8822798B1 (en) Clutch assembly for high-hat drum cymbal
WO2000062277A1 (en) Keyboard musical instrument
WO2017126336A1 (en) Instrument pedal device