Hammer head angle calibration device of vertical piano action

Abstract

The utility model discloses a hammer head angle calibration device of a vertical piano action, which comprises a bottom plate, a clamping plate and a wire alignment plate, and the bottom plate is provided with a first calibration area, a second calibration area and a third calibration area; the first calibration area, the second calibration area and the third calibration area are each provided with a clamping plate and a wire alignment plate, the clamping plate and the wire alignment plate in each calibration area are oppositely arranged, the clamping plate is provided with a mallet head abutting part used for abutting against a mallet head and a mallet handle abutting part used for abutting against a mallet handle, and a mallet head containing groove is formed between the mallet head abutting part and the wire alignment plate. The alignment plate is provided with an alignment pointer, the alignment pointer horizontally points to one side of the mallet head containing groove, and the mallet head abutting part is provided with a clamping position used for clamping a corner position formed between the mallet head and the mallet head root. The device is simple to operate, errors can be reduced while the calibration efficiency is improved, waste products are reduced, and the product quality is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical piano technology field especially relates to a vertical piano hammering machine hammer angle calibration device. BACKGROUND

[0002] Calibrating hammer angle is an important link in piano maintenance, which is crucial to maintaining the tone, performance and mechanical health of the piano. The current hammer angle calibration method generally uses a protractor to measure the included angle between the hammer head and the hammer handle of the hammer, thereby screening out the hammer with unsuitable angle, and then adjusting it to the appropriate angle manually by heating the adhesive position between the hammer head and the hammer handle to the softening state of the glue, thereby completing the calibration of the hammer angle. However, the manual measurement method using a protractor is prone to errors, resulting in deviation of the adjusted hammer angle, which directly affects the angle of the entire hammer, and is easy to produce waste, causing unstable product quality and low calibration efficiency. SUMMARY

[0003] The utility model discloses a vertical piano hammering machine hammer angle calibration device, which is more simple to operate, can reduce errors and waste, and can improve the calibration efficiency and product quality.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A vertical piano hammering machine hammer angle calibration device comprises a bottom plate, a clamping plate and a line plate, the bottom plate is provided with a first calibration area for calibrating the included angle between the hammer head and the hammer handle of the bass hammer, a second calibration area for calibrating the included angle between the hammer head and the hammer handle of the middle pitch hammer, and a third calibration area for calibrating the included angle between the hammer head and the hammer handle of the treble hammer; the first calibration area, the second calibration area and the third calibration area are all provided with the clamping plate and the line plate, the clamping plate and the line plate in each calibration area are oppositely arranged, the clamping plate is provided with a hammer head abutting portion for abutting against the hammer head and a hammer handle abutting portion for abutting against the hammer handle, a hammer head placing groove is formed between the hammer head abutting portion and the line plate, the line plate is provided with a centering pointer, the centering pointer horizontally points to one side of the hammer head placing groove, and the hammer head abutting portion is provided with a clamping position for clamping the corner position between the hammer head and the hammer root.

[0006] As a preferred scheme of the utility model, the hammer handle abutting portion of the clamping plate provided at the first calibration area is provided with a first abutting plate extending upward.

[0007] As a preferred scheme of the utility model, the material of the first abutting plate is stainless steel.

[0008] As the preferred scheme of the utility model, the mallet handle abutting portion of the clamping plate arranged at the second calibration area is provided with a second abutting plate extending upwards.

[0009] As the preferred scheme of the utility model, the material of the second abutting plate is stainless steel.

[0010] As the preferred scheme of the utility model, a centering block is arranged between the alignment plate and the bottom plate, and the thickness of the centering block is greater than or equal to the thickness of the hammer head.

[0011] As the preferred scheme of the utility model, the alignment plate arranged in the first calibration area is arranged left and right with the clamping plate, and the centering pointer of the alignment plate arranged in the first calibration area points to the right side; the clamping plate arranged in the second calibration area is arranged left and right with the alignment plate, and the centering pointer of the alignment plate arranged in the second calibration area points to the left side.

[0012] The vertical piano hammer angle calibration device has the advantages that:

[0013] During calibration, the operator respectively places the bass hammer, the medium-pitch hammer and the high-pitch hammer on the first calibration area, the second calibration area and the third calibration area, wherein the mallet handle of the hammer abuts against the mallet handle abutting portion, the hammer head is placed in the hammer head placing groove, and the clamping position on the hammer head abutting portion clamps the corner position formed between the hammer head and the hammer head root portion. By checking whether the centering pointer of the alignment plate on each calibration area is aligned with the center line of the hammer head, it can be checked whether the angle formed between the mallet handle and the hammer head of the hammer is appropriate and standard. Compared with the manual calibration method using a protractor in the prior art, the operation is simpler, the calibration efficiency is improved, the error is reduced, the generation of waste products is reduced, and the product quality is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.

[0015] Figure 1 is a structural schematic view of a vertical piano hammer angle calibration device provided by the embodiments of the utility model.

[0016] Markings in the drawings:

[0017] 1, bottom plate; 11, first calibration area; 12, second calibration area; 13, third calibration area; 2, card plate; 21, hammer head abutting part; 211, clamping position; 22, handle abutting part; 3, alignment plate; 31, centering pointer; 4, hammer head placing groove; 5, first abutting plate; 6, second abutting plate; 7, alignment block; 8, bass mallet; 9, medium-pitch mallet; 10, treble mallet. DETAILED DESCRIPTION

[0018] The specific embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0019] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top" and "bottom" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. It should be understood that the utility model uses the terms "first", "second" and the like to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, "first" information can also be referred to as "second" information without departing from the scope of the utility model, and similarly, "second" information can also be referred to as "first" information.

[0020] Please refer to Figure 1 The utility model preferred embodiment provides a kind of vertical string machine mallet angle calibration device, it includes bottom plate 1, card plate 2 and alignment plate 3, the first calibration area 11 for calibrating the included angle formed between mallet head and handle in bass mallet 8 is equipped on the bottom plate 1, the second calibration area 12 for calibrating the included angle formed between mallet head and handle in medium-pitch mallet 9 and the third calibration area 13 for calibrating the included angle formed between mallet head and handle in treble mallet 10;The first calibration area 11, the second calibration area 12 and the third calibration area 13 are all equipped with the card plate 2 and the alignment plate 3, the card plate 2 and the alignment plate 3 in each calibration area are oppositely arranged, the mallet head abutting part 21 for abutting mallet head and the handle abutting part 22 for abutting handle are equipped on the card plate 2, the mallet head placing groove 4 is formed between the mallet head abutting part 21 and the alignment plate 3, the centering pointer 31 is equipped on the alignment plate 3, the centering pointer 31 horizontally points to one side of the mallet head placing groove 4, the clamping position 211 for clamping the corner position formed between mallet head and mallet head root is equipped on the mallet head abutting part 21.

[0021] According to the vertical piano hammer angle calibration device of the present embodiment, when calibrating, the operator respectively places the bass hammer 8, the tenor hammer 9 and the treble hammer 10 on the first calibration area 11, the second calibration area 12 and the third calibration area 13, wherein the hammer handle is in abutment with the hammer handle abutment portion 22, the hammer head is placed in the hammer head placing groove 4, and the clamping position 211 on the hammer head abutment portion 21 clamps the corner position formed between the hammer head and the hammer head root portion. By checking whether the centering pointer 31 of the alignment plate 3 on each calibration area is aligned with the center line of the hammer head, it can be checked whether the angle formed between the hammer handle and the hammer head in the hammer is appropriate and standard. Compared with the manual calibration method using a protractor in the prior art, the operation is simpler, the calibration efficiency is improved, the error is reduced, the generation of waste products is reduced, and the product quality is more stable.

[0022] Exemplarily, since the angle between the hammer handle and the hammer head in the bass hammer 8 and the tenor hammer 9 is larger, when calibrating the angle, in order to ensure that the hammer handle can abut against the hammer handle abutment portion 22 and thus be fixed, the hammer handle abutment portion 22 of the clamping plate 2 provided at the first calibration area 11 is provided with a first abutment plate 5 extending upward, and the hammer handle abutment portion 22 of the clamping plate 2 provided at the second calibration area 12 is provided with a second abutment plate 6 extending upward. In order to improve the structural strength of the first abutment plate 5 and the second abutment plate 6, the materials of the first abutment plate 5 and the second abutment plate 6 are preferably stainless steel.

[0023] Further, since the clamping plates 2 provided in the first calibration area 11 and the second calibration area 12 are both connected with abutment plates, in order to more conveniently distinguish the first calibration area 11 and the second calibration area 12 and thus improve the calibration efficiency, the alignment plate 3 provided in the first calibration area 11 is arranged left and right with the clamping plate 2, and the centering pointer 31 of the alignment plate 3 provided in the first calibration area 11 points to the right side; the clamping plate 2 provided in the second calibration area 12 is arranged left and right with the alignment plate 3, and the centering pointer 31 of the alignment plate 3 provided in the second calibration area 12 points to the left side.

[0024] Exemplarily, the alignment block 7 is provided between the alignment plate 3 and the bottom plate 1, and the thickness of the alignment block 7 is greater than or equal to the thickness of the hammer head. Thus, the alignment block 7 can elevate the alignment plate 3, thereby facilitating the placement of the hammer head into the hammer head placing groove 4 or the removal of the hammer head from the hammer head placing groove 4; at the same time, it can facilitate the user to observe whether the centering pointer 31 points to the center line of the hammer head.

[0025] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled in the art, under the premise of not departing from the technical principles of the utility model, a number of improvements and substitutions can also be made, these improvements and substitutions should also be considered as the protection scope of the utility model.

Claims

1. A device for calibrating the angle of a hammer of a vertical piano string striker, characterized in that, The bass string hammer, the tenor string hammer and the treble string hammer are arranged on the bottom plate, and the first calibration area, the second calibration area and the third calibration area are arranged on the bottom plate.

2. The vertical piano striking mechanism hammer angle calibration device according to claim 1, characterized in that, The hammer handle abutting portion of the clamping plate is provided with an upwardly extending first abutting plate.

3. The vertical piano plectrum angle calibrating device according to claim 2, characterized in that, The first abutting plate is made of stainless steel.

4. The vertical piano striking mechanism hammer angle calibration device of claim 1, wherein, The hammer handle abutting portion of the clamping plate arranged at the second calibration area is provided with an upwardly extending second abutting plate.

5. The vertical piano plectrum angle calibrating device according to claim 4, characterized in that, The second abutting plate is made of stainless steel.

6. The vertical piano striking mechanism hammer angle calibration device of claim 1, wherein, The alignment block arranged between the alignment plate and the bottom plate has a thickness greater than or equal to the thickness of the hammer head.

7. The vertical piano striking string machine hammer angle calibrating device according to claim 1, characterized in that, The alignment plate arranged in the first calibration area is arranged left and right with the clamping plate, and the centering pointer of the alignment plate arranged in the first calibration area points to the right side. The clamping plate arranged in the second calibration area is arranged left and right with the alignment plate, and the centering pointer of the alignment plate arranged in the second calibration area points to the left side.

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