JPH04124295U - Drum pedal beater amplitude adjustment mechanism - Google Patents

Abstract

(57) [Summary] [Objective] To provide a beater amplitude adjustment mechanism for a drum pedal, which can adjust the amplitude position of a beater without changing the tension of a spring, and can also easily make subtle adjustments. [Structure] The cam member is characterized in that an arcuate roller mounting groove centered on the beater rotation axis is provided, and the roller is adjustable and fixed in the mounting groove.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a beater amplitude adjustment mechanism for a drum pedal.

0002

[Conventional technology]

In the bass drum beater mechanism, as shown in FIGS. Supports 92, 92 are erected on both sides of the base 91 of the pedal device 90. The beater rotation shaft 94 is connected via ball bearings 93, 93 provided on the upper part of the is rotatably supported.

0003 A beater mounting member 110 and a beater mounting member 11 are located approximately in the center of this rotating shaft 94. A foil member 120 that rotates together with the beater 115 is attached to the beater 115. It is fixed to the data mounting member 110 with a set screw 116.

0004 The foil member 120 consists of a sprocket or a partial sprocket. A chain 121 whose one end is fixed to the foil member 120 is wound around the outer periphery. .

[0005] The other end of the chain 121 is connected to the tip of the foot pedal 95, By depressing the foot pedal 95 as shown by arrow A in FIG. is pulled down, the foil member 120 rotates, and the beater mounting member 110 rotates. Then, the beater 115 strikes the drum surface D.

[0006] On the other hand, a cam member 100 is fixed to the end of the rotation shaft 94 by a set screw 101. has been established. This cam member 100 has a substantially fan shape as shown in FIG. A bearing hole 102 through which the rotating shaft 94 is inserted is formed in a portion corresponding to the pivot of the fan. At the same time, a plurality of roller attachment holes 103, 103, 103 are attached. ing.

[0007] A roller mounting bolt 104 is screwed into one of the roller mounting holes 103, as shown in the figure. The hanging ring is attached via the roller 105 fitted to the roller mounting bolt 104. 106 is suspended.

[0008] The upper end of a spring 107 is attached to the tip of the suspension ring 106, and the spring 107 The lower end of the bracket 107 is attached to a lower bracket 109 provided on the outside of the support column 92. Ru. The beater 115 is automatically returned to its original position by the biasing force of the spring 107. return. Reference numeral 108 denotes an adjustment bolt 130 for adjusting the tension of the spring 107. is a drum hoop holding clamp.

[0009] The amplitude of the beater 115 in the conventional device as described above depends on the cam member 100. The positions of the plurality of roller mounting holes 103 formed are selected to tilt the cam member 100. By changing the angle, the inclination of the beater mounting member 110 is changed, and thus the beater 1 This is done by changing the distance between 15 and the drum surface D.

0010 However, in such a conventional mechanism, the amplitude position of the beater is The position of the hole 103 is determined step by step, so it depends on the player's preference and playing style. It was difficult to make subtle adjustments. Also, when adjusting the beater amplitude position, remove the roller mounting bolt 104 each time. Then, the spring 107 had to be replaced, which took time and effort.

[0011] Also, when using a drum set with twin pedals, the adjacent beaters This may cause a shift in the amplitude position. In such a case, the beater rotation spring 107 is adjusted by the adjustment bolt 108. Although it is possible to adjust the tension and adjust the position to some extent, this method does not allow the beater 11 Since the force of the spring 107 that rotates the drum 5 changes, the bead hitting the drum surface D changes. The speed of the drum 115 may also change, making it impossible to obtain the desired drum sound quality. There was a problem.

0012

[Problem that the idea aims to solve]

This idea was proposed in view of the problems with the conventional devices mentioned above. , the beater amplitude position can be adjusted without changing the spring tension. Provides a drum pedal beater amplitude adjustment mechanism that allows you to easily make odd adjustments. It is something to do.

[0013]

[Means to solve the problem]

In other words, this invention attaches a cover to the end of the beater rotating shaft, which is rotatably supported on the column. A drum comprising a fixed cam member and a spring tensioned on the cam member via a roller. In the pedal, the cam member has an arc-shaped roller centered on the beater rotation axis. A mounting groove is provided in which the roller can be fixed in an adjustable manner. This relates to a drum pedal beater amplitude tensioning mechanism.

[0014]

【Example】

This invention will be described in detail below with reference to the accompanying drawings. Figure 1 is a side view of a drum pedal equipped with the beater amplitude adjustment mechanism of this invention. 2 is a partially cutaway front view, FIG. 3 is an enlarged sectional view of the main part, and FIG. 4 is a cam. A front view and a back view showing the positional relationship between the members and the rollers, and Figure 5 show the operation of this devised mechanism. FIG. 6 is a side view showing another example.

[0015] As shown in Figs. 1 and 2, beater amplitude adjustment of the drum pedal of this invention The mechanism 10 is a beater rotation shaft 9 of a conventional drum pedal device 90 as shown in FIG. The cam member 20 is fixed to the end portion 96 of 4. Note that the symbols in the figure The same reference numerals as 7 represent the same members.

[0016] The cam member 20 has a substantially fan shape as shown in the figure, and a portion corresponding to the key point of the fan A bearing hole 21 through which the rotating shaft 94 is inserted is formed in the beater. On the arc line with the rotation axis 94 as the center point, there is an elongated hole-shaped roller along the arc shape. A mounting groove 22 is provided. And on the back side is a roller mounting member 30 which will be described later. A recess 34 is formed into which a tightening nut 35 is slidably fitted. This cam member 20 is fixed to the rotation shaft 94 with a set screw 11 as shown in FIG. be done.

[0017] As can be better understood from FIG. 3, in the roller mounting groove 22 of the cam member 20, The roller mounting member 30 is inserted from the outside of the device.

[0018] This roller mounting member 30 allows the beater 115 to be held at the amplitude position desired by the player. This is to give the cam member 20 an inclination so that the roller mounting portion 31 It consists of a main body part 32 and a threaded part 33.

[0019] As shown in the figure, a roller 105 is fitted into the roller mounting portion 31. A spring 107 is tensioned and fixed to the support column 92 via the support 5. The main body portion 32 is adapted to slide within the roller mounting groove 22 of the cam member 20. Then, the beater 115 is adjusted to a position where it is held at a desired amplitude position, and the tightening nut 3 is tightened. 5 onto the threaded portion 33 and tighten it into the roller mounting groove 22 from the back side of the cam member 20. Fixed. Reference numeral 39 is a washer. As shown in the figure, the tip of the roller mounting portion 31 can be used with the tuning key. It is preferable that it be formed into a rectangular shape so that it can be adjusted.

[0020] FIG. 4 shows the positional relationship between the cam member 20 and the roller 105. (a) is an example in which the roller 105 is fixed at the center of the roller mounting groove 22. code 3 0 is a roller mounting member, and 35 is a tightening nut. (b) is an example in which the roller 105 is fixed to the right end of the roller mounting groove 22, and the cam member 2 0 is tilted to the right and fixed. As shown in FIG. 5, by tilting the cam member 20 to the right, the beam The beater rotation shaft 94 rotates to the right, the beater mounting member 110 rotates to the right, and the beater Narrow the amplitude distance of 115. (c) slides the roller mounting member 30 to attach the roller 105 to the roller mounting groove 22. In this example, the cam member 20 is fixed to the left end, and the cam member 20 is inclined to the left. In this case, as shown in FIG. 6, the beater mounting member 110 is rotated to the left. Increase the amplitude of the beater 115.

[0021]

[Effect of the idea]

As illustrated and explained above, the beater amplitude adjustment mechanism of the drum pedal of this invention According to this method, it is possible to finely adjust the amplitude position of the beater to meet the delicate needs of performers. can be done. Also, even with twin pedals, there is no need to change the spring tension, so The beater amplitude position can be adjusted freely while maintaining the sound quality of the ram. In addition, this invention has a great advantage in that it can be easily adjusted without removing the spring. It is something that you have.

[Brief explanation of drawings]

FIG. 1 is a side view of a drum pedal provided with a beater amplitude adjustment mechanism of the present invention.

FIG. 2 is a front view with a portion thereof cut away.

FIG. 3 is an enlarged sectional view of the main part thereof.

FIG. 4 is a front view and a rear view showing the positional relationship between a cam member and a roller.

FIG. 5 is a side view showing an example of the operation of this invented mechanism.

FIG. 6 is a side view showing another example.

FIG. 7 is a side view showing a beater amplitude adjustment mechanism of a conventional drum pedal.

FIG. 8 is a front view with a part thereof cut away.

FIG. 9 is an enlarged sectional view of the main part thereof.

FIG. 10 is a front view of the cam member.

[Explanation of symbols]

10 Beater amplitude adjustment mechanism 20 Cam member 30 Roller mounting member 35 Tightening nut 90 Drum pedal device 92 Pillar 94 Beater rotation axis 96 Foot pedal 105 Roller 107 Spring 115 beater

Claims (1)

[Scope of utility model registration request] 1. A drum pedal comprising: a cam member fixed to an end of a beater rotating shaft rotatably supported on a column; and a spring tensioned on the cam member via a roller.
A beater amplitude adjustment mechanism for a drum pedal, characterized in that the cam member is provided with an arcuate roller mounting groove centered on the beater rotation axis, and the roller is adjustable and fixed in the mounting groove.