JP2003241744A - Foot pedal for drum - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foot pedal for drum which enables a felt used for a beater to be securely held and never fall off and makes only the felt replaceable when the felt wears away. <P>SOLUTION: The beater 10 constituted of the felt 20 which percusses a drum head and a felt holding member 21 which clamps the felt 20 and also stores the rear part of the felt 20, and the felt holding member 21 is fitted to the tip part of a beater rod 11. The felt holding member 21 is composed of 1st and 2nd cases 22 and 23 and a storage part 25 which stores the rear part of the felt 20 is formed on the front side. The 1st and 2nd cases 22 and 23 are mounted on the tip part of the beater rod 11 and the 1st case 22 is pressed against the 2nd case 23 with a nut 39 to couple both the cases together in one body, so that the 1st and 2nd cases 22 and 23 clamp the felt 20. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum foot pedal used for a bass drum, and more particularly to a drum foot pedal having an improved beater structure for hitting a drum head of a bass drum. It is about. 2. Description of the Related Art A drum foot pedal used for playing a bass drum rotates a beater by depressing a foot board, thereby hitting a drum head of the bass drum (see FIG. 1). Example: 55-45
No. 433, JP-B-58-43035, JP-A-8-31
No. 4447). As a beater for hitting a drum head,
The structure shown in FIG. 8 is known (Japanese Unexamined Patent Publication No. Hei 8-31).
No. 4449). That is, the beater A includes a felt B formed in a disc shape, and a cylindrical body C having the felt B adhered to one end surface thereof with an adhesive D.
The cylinder C is attached to the tip of the beater rod E such that the axis is orthogonal to the axis of the rod, and is fixed with a nut or the like. [0004] However, such a conventional beater A has a structure in which the felt B is fixed to the cylindrical body C with the adhesive D, so that a variation in work is likely to occur. In particular, there is a problem that the appearance is impaired when the felt B is mounted eccentrically with respect to the cylindrical body C. If the felt B has been used for a long period of time, the felt B will peel off from the cylinder C due to the deterioration of the adhesive D, or if the felt B needs to be replaced due to wear or damage of the felt B, only the felt B is used. In order to replace the felt B, it is necessary to replace the entire beater A including the tubular body C, since the adhesive D is required to exchange the felt B, and if the pre-treatment of the bonding surface is not carefully performed, the adhesive B easily peels off. I needed to. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is an object of the present invention to ensure that the felt used for the beater is securely held without falling off and that the felt is worn. It is an object of the present invention to provide a foot pedal for a drum in which only the felt can be sometimes replaced. [0006] In order to achieve the above object, the present invention relates to a drum foot pedal provided with a beater which rotates in conjunction with a stepping operation of a foot board and strikes a drum head. The beater is made up of a felt that strikes a drum head, and a felt holding member that holds the felt in the axial direction of the beater rod and has a storage portion that stores a rear portion of the felt. In the present invention, since the felt holding member sandwiches the felt, the felt is prevented from dropping out of the storage portion. Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is an external perspective view showing an embodiment of a drum foot pedal according to the present invention,
2 is a front view of the beater, FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 2, FIG. 4 is a plan view of the beater, FIG.
FIGS. 6B and 6C are a plan view, a front view and a side view of the felt, FIGS. 6A and 6B are cross-sectional views and a bottom view of the first case, and FIGS. It is sectional drawing and a top view of a 2nd case. In FIG. 1, a drum foot pedal generally indicated by reference numeral 1 is a pedal frame 2 installed on the floor.
It has. The pedal frame 2 is made of an aluminum alloy or the like, and is manufactured by die casting. The pedal frame 2 has a plate-shaped frame main body 2A and two support columns 2 which are integrally provided on both ends of the upper surface of the frame main body 2A.
B, 2B, and the heel 3 is connected to the frame body 2A via the connecting member 4. Further, a clamp fitting 5 for holding a not-shown bass drum fastening frame (hoop) is attached to the upper surface of the frame main body 2A. A rotating shaft 6 is rotatably mounted between the upper ends of the two support portions 2B, 2B. For this reason, the upper end of each column 2B constitutes a bearing 7, and a bearing 8 that supports the end of the rotating shaft 6 is attached. A rocker 9 is fixed to the center of the rotating shaft 6, and a beater 10 for hitting the drum head of a bass drum is attached to the rocker 9 via a beater rod 11, and a front end of the foot board 12 is pressed by a pedaling force. They are connected via a transmission member 13. The foot board 12 is formed in a flat plate having a size large enough to place a foot, a rear end of the foot board 12 is rotatably connected to the heel 3 via a connecting pin, and a return spring 14 is provided. The upward return behavior is given by this. The return spring 14 has an upper end connected to a cam plate 15 provided at one end of the rotating shaft 6 and a lower end connected to a spring receiving member 16 provided at a lower end of one of the columns 2B. In the present embodiment, an example in which a flexible leather or resin band is used as the treading force transmitting member 13 has been described.
Chains and the like can also be used. The foot board 12 is normally held at an initial position shown in FIG. When the footboard 12 is stepped on in this state, the treading force transmitting member 13 is pulled down, and the turning shaft 6 is turned. Therefore, beater 10
Also rotates integrally with the rotating shaft 6 and strikes the drum head of the bass drum. The maximum stepping angle of the foot board 12 at this time is about 15 °. When the stepping operation force is removed from the footboard 12 after the impact, the footboard 12 rises due to the spring force of the return spring 14, and returns to the original state shown in the drawing to enable the next stepping operation. Next, the structure of the beater 10, which is a main part of the present invention, will be described in more detail with reference to FIGS. The beater 10 includes a felt 20 for striking a drum head, and a felt holding member 21 that is housed with the rear portion of the felt 20 held therebetween and attached to the beater rod 11. As shown in FIG. 5, the felt 20 has an oblong (or rectangular) shape in front view which is long in the left-right direction, an arc shape in plan view, and a trapezoidal shape in side view. The front end protrudes forward from the opening F of the felt holding member 21 to enable the drum head to be hit. The front surface 20a of the felt 20 that strikes the drum head is formed on a toric surface (part of a surface obtained by rotating an arc around an axis which is in the same plane as the arc and does not pass through the center of curvature of the arc). Is formed. The felt holding member 21 is composed of first and second cases 22 and 23 which are made of a synthetic resin and are integrally connected by bolts which will be described later. A storage part 25 for storing and nipping is formed. The opening F of the storage section 25 is an oval elongated in the left-right direction, and the opening width L in the left-right direction (FIG. 4) is set smaller than the width L1 of the felt 20. Also,
The opening width H in the height direction (FIG. 2) is the height H1 of the felt 20.
It is set slightly smaller than (FIG. 5). In FIG. 6, the first case 22 comprises:
It comprises a front plate 22a, an upper plate 22b, an outer plate 22c, a felt holding plate 22d, a cylindrical portion 22e, and a reinforcing plate 22f. The front plate 22a is formed in a flat plate shape, and forms a storage space 25A for storing the upper rear portion of the felt 20 together with the felt holding plate 22d. The felt holding plate 22d is integrally formed so as to protrude forward from the upper end of the front surface 22a and the upper portion of the left and right side edges to form a downward U-shape when viewed from the front. Of the storage space 25A is formed. The detachment preventing portion 26 is curved inward so as to cover both left and right ends of the front plate 20 a of the felt 20. In addition, a concave portion 27 that forms an engagement portion with the first case 23 is formed at a lower end of the inner side surface of the left and right side walls of the felt holding plate 22d. The upper plate 22b is formed in a substantially semicircular shape in plan view, and has a concave portion 28 communicating with a center hole 29 of the cylindrical portion 22e at the center in the width direction. The concave portion 28 has a nut 39 to be described later fitted together with the washer 40, and the hole diameter is set to be larger than the hole diameter of the center hole 29. The cylindrical portion 22e is vertically provided integrally with the lower surface of the upper plate 22b, and the beater rod 11 is inserted through a center hole 29. The outer plate 22c is vertically provided integrally with the outer peripheral edge of the lower surface of the upper plate 22c and is opened vertically, and a front end is connected to a rear surface of the front plate 22a. The reinforcing plate 22f connects and reinforces the front plate 22a, the outer plate 22c, and the cylindrical portion 22e so as to withstand the impact of the felt 20 on the drum head. The second case 23 shown in FIG. 7 includes a bottom plate 23a, a felt holding plate 23b, and a fitting wall 23c. The bottom plate 23a is connected to the first case 22.
And a holding portion 31 through which the beater rod 11 penetrates and which substantially holds the beater 10 is formed at the center in the width direction. Holder 31
Is formed from a through hole 31a and a concave portion 31b. A step 3 is provided at the connection between the bottom plate 23a and the felt holding plate 23b.
2 are provided. A vertical step surface 32 of the step 32
a is a positioning portion that forms the same surface as the front plate 22a of the first case 22 when the first case 22 and the second case 23 are integrally joined, and positions the felt 20 in the front-rear direction. Is formed. The felt holding plate 23b is connected to the bottom plate 2
By projecting integrally from the front end side outer peripheral edge of the front end 3a toward the front and upward, the shape in front view is U-shaped and substantially vertically symmetric with the felt holding plate 22d, and the felt holding plate 23b A space surrounded by the bottom plate 23a and the bottom plate 23a forms a storage space 25B for storing a lower rear portion of the felt 20. The storage space 25B is integrally formed with the storage space 25A by integrally connecting the first and second cases 22 and 23.
To form The left and right side walls of the felt holding plate 23b are
The opening 20 is curved inward so as to cover the left and right ends of the front plate 20a of the felt 20 to define the opening width L of the storage section 25, thereby preventing the felt 20 from falling out of the storage space 25B. Is formed. At the upper end of the felt holding plate 23b, a thin engaging piece 35 that engages with the concave portion 27 provided at the lower portion of the inner side surface of the felt holding plate 22d of the first case 22 is integrally provided to project upward. ing. The fitting wall 23C has a discontinuous (or continuous) arc shape integrally projecting upward from the outer peripheral edge of the upper surface of the bottom plate 23a. A thin fitting wall 37 that fits from below into the inner surface of the outer plate 22c is integrally provided. When forming the felt 20, if at least the size in the width direction is formed larger than the case opening width, the elasticity of the felt 20 presses down on the case, so that the felt 20 is not easily dropped. In FIG. 3, a convex portion 43 for stopping a washer 41 for receiving and supporting the second case 23 is integrally formed near the distal end of the beater rod 11 by caulking. The bolt 39 for fixing the felt holding member 21 is formed by forming a male screw 42 into which the nut 39 is screwed via a washer 40. Assembly of beater 10 and beater rod 11
Attachment to the camera is performed according to the following procedure. The tip of the beater rod 11 is inserted into the holding portion 31 of the second case 23 from below, and the stopper 41 is fitted into the concave portion 31b.
1 at the tip. The felt 20 is inserted into the storage space 25 </ b> B from above, and the lower rear portion is in close contact with the vertical step surface 32 a of the step portion 32,
Both ends of the front surface 20a are brought into close contact with the inner surfaces of the left and right side walls of the felt holding portion 23b. The distal end of the beater rod 11 is inserted from below into the center hole 29 of the cylindrical portion 22e of the first case 22 to fit the first case 22 into the second case 23 from above. As a result, the engagement piece 35 is engaged with the recess 27, and the engagement wall 37 is fitted on the inner surface of the outer plate 22c. First and second cases 22 and 2
When the fitting 3 is fitted, the storage spaces 25A and 25B form the storage part 25 to store the rear part of the felt 20, and the back surface of the felt 20 comes into close contact with the front plate 22a of the first case 22. Nut 39 is attached to male screw 42 of beater rod 11 and washer 4
0 through the first case 22 and the second case 2
3, the opening width H in the height direction of the opening F is set to be slightly smaller than the height H1 of the felt 20, so that the felt holding plates 2 of the first and second cases 22, 23 are formed.
2d and 23b attach the rear part of the felt 20 to the beater rod 11
And is fixed in the storage portion 25. Alternatively, as another mounting method, the first and second cases 22 and 23 are fitted in advance to store the felt 20 in the storage section 25, and then the tip end of the beater rod 11 is removed from the holding section 31. The first and second cases 22 and 23 may be integrally connected by inserting the nut 39 into the center hole 29 of the cylindrical portion 22e and screwing the nut 39 to the male screw 42 via the washer 40. In the beater mounting structure for the drum foot pedal 1 having such a structure, the felt 20 is held between the felt holding plates 22d and 23b of the first and second cases 22, 23. Felt 22
Does not come out of the storage portion 25 of the felt holding member 21 and can be securely held. Also, the left and right side walls of the felt holding plates 22d and 23b are bent inward to come into close contact with both ends of the front surface of the felt 20, thereby forming the slip-off preventing portions 26 and 34. Dropping can be prevented more reliably. Therefore, there is no need to fix the inside of the storage space 25 with an adhesive,
Is easy and easy to attach to the felt holding member 21. Further, when it is necessary to replace the felt 20 due to abrasion or the like, the nut 39 is removed, the first case 22 is removed from the beater rod 11, and the felt 20 is removed from the storage portion 25. Therefore, the replacement operation is simple and easy, and the felt holding member 21 can be used as it is. Further, since the felt holding member 21 is fixed to the beater rod 11 and the felt 20 is clamped by the felt holding member 21, the number of parts can be minimized. In the above-described embodiment, the felt holding member 21 is formed of a molded product made of synthetic resin. However, the present invention is not limited to this.
It may be a molded product made of metal such as aluminum manufactured by die casting. Also felt 2
The shape of 0 is not limited to the shape shown in the above embodiment, and may be various shapes. For example, the front surface 22a may be formed in a spherical shape, and the outer peripheral edge may be sandwiched over the entire circumference. Also,
The detachment preventing portions 26 and 34 of the felt 20 are constituted by a part of the felt holding plates 22d and 23b. However, the present invention is not limited to this, and may be constituted by a pin, a step portion or the like so that the felt 20 can be bitten. The material is not limited to felt and may be suitable for hitting percussion instruments, and various materials are used. Also,
Although the example in which the bolt is used in which the male screw 42 is formed only at the distal end portion of the beater rod 11 has been described, a male screw may be formed up to that portion in order to use a nut instead of the stopper 41. As described above, the drum foot pedal according to the present invention is a felt holding member having a felt for striking a drum head and a storage portion for holding the felt and for storing the rear portion of the felt. Thus, the felt is reliably held, and the felt can be reliably prevented from falling off from the felt holding member during the performance. Further, since the felt is held between the felt holding members according to the present invention, there is no need to fix the felt using an adhesive, and the attaching and detaching of the felt to and from the felt holding member, and furthermore, the work of replacing the felt is quick and easy. Can be done. Further, in the present invention, since the felt holding member is provided with the detachment preventing portion for preventing the felt from coming off, the felt can be more reliably prevented from falling off.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view showing an embodiment of a drum foot pedal according to the present invention. FIG. 2 is a front view of a beater. FIG. 3 is a sectional view taken along line III-III in FIG. 2; FIG. 4 is a plan view of the beater. FIGS. 5A, 5B, and 5C are a plan view, a front view, and a side view of a felt. 6A and 6B are a cross-sectional view and a bottom view of a first case. FIGS. 7A and 7B are a cross-sectional view and a plan view of a second case. FIG. 8 is a side view of a conventional beater. [Description of Signs] 1 ... Drum foot pedal, 2 ... Pedal frame, 2B
… Pillar part, 6… rotating shaft, 9… rocker, 10… beater, 1
DESCRIPTION OF SYMBOLS 1 ... Beater rod, 12 ... Foot board, 13 ... Tread force transmission member, 20 ... Felt, 21 ... Felt holding member, 2
2 First case, 23 Second case, 25 Storage part, 25A, 25B Storage space, 26, 34 ... Detachment prevention part.

Claims (1)

Claims 1. A drum foot pedal provided with a beater that rotates in conjunction with a footboard depressing operation and strikes a drum head, wherein a felt that strikes the beater with a drum head is provided. A felt pedal for a drum, comprising: a felt holding member that holds a felt in an axial direction of a beater rod and has a storage portion that stores a rear portion of the felt.