JP3936460B2 - Leg structure of hitting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a leg structure of a percussion surface device (pad) that can be used for percussion instruments such as drums and electronic percussion instruments.
[0002]
[Prior art]
Conventionally, for example, as shown in FIG. 8 and FIG. 9, the leg structures for supporting the pads of the electronic drum are generally known. Here, FIG. 8 is a side view of the leg structure, and FIG. 9 is a plan view. As shown in the figure, reference numeral 1 denotes a shell for forming a striking surface, and the shell 1 is formed of a hollow cylindrical body having both ends opened, and a head serving as a striking surface is attached to one opening using a rim. It is. In order to strike this head with the beater 61 of the foot pedal device 6, it is necessary to make the striking surface of the shell 1 stand upright, and for this purpose, the leg structure 8 is used. The leg structure 8 has a horizontal support rod 83 attached to the front side of the shell 1 (opposite to the side where the head pedal device is arranged), front legs 81 contacting the floor surface 10 attached to the left and right ends thereof, and the bottom side of the shell 1 A leg 87 extending vertically until it comes into contact with the floor surface is provided, and a distal end side of the leg 87 is bent to provide an attachment portion 87a of the foot pedal apparatus.
[0003]
The foot pedal device 6 is separate from the above-mentioned pad (commercially available separately), and the pedal 6 is attached to one end of the pedal support member 65 so as to be swingable around a swing fulcrum 67, and the other end. A support rod 64 is set up vertically on the side, and a swinging portion 66 is provided at the tip thereof. A shaft 62 having a beater 61 fixed to the tip is swingably attached to the swinging portion 66 and attached to the tip of the pedal 60. The metal chain 63 is connected to the swinging portion 66, and the beater 61 can be swung in the direction of the head 1 by depressing the pedal 60. An attachment portion 69 is provided on the distal end side of the support member 65 of the foot pedal device 6, and the foot pedal device 6 can be detachably attached to the attachment portion 87 a of the leg structure 87 by the attachment portion 69. it can. When the foot pedal device 6 is attached, at least the bottom surface of the foot swing device 67 side and the bottom surface of the attachment portion 69 side of the foot pedal device 6 are in contact with the floor surface 10 so that the foot pedal device 6 can be stably arranged. ing.
[0004]
[Problems to be solved by the invention]
When the foot pedal device 6 is operated using the conventional electronic drum leg structure, as shown in FIG. 8, when the pedal 60 is depressed, the depressed force F0 is finally the swing fulcrum of the foot pedal device 6. The force F2 in the direction of the floor surface on the 67 side and the force F3 in the direction of the floor surface on the mounting portion 69 side are divided, and the front leg 81 has almost no force directed in the floor surface direction. The force F0 is converted into a force F4 of the leg 87 and a force F6 of the leg 81 in the front direction.
[0005]
As a result, when the pedal 60 is depressed, almost no force is exerted on the front leg 81 in the direction of the floor, so that when the beater 1 is strongly struck, the front leg 81 is lifted from the floor by the reaction. Therefore, the shell 1 part is shaken every time the pedal 60 is depressed. In the electronic drum, the impact sensor detects the shaking of the shell 1 portion and outputs an impact detection signal. Therefore, the impact detection signal contains a lot of noise, which causes malfunction of the electronic drum. In addition, as a result of the shell 1 swaying rattlingly, the feeling of operating the foot pedal device 6 is deteriorated.
[0006]
Further, the force F3 acting in the floor surface direction is particularly large on the distal end side of the pedal support member 65 among the force F0 depressing the foot pedal device 6, and therefore, one point on the distal end side of the foot pedal device 6 for each depression operation. For example, when the floor surface is a floor surface of the second floor, a large noise is generated in the lower floor.
[0007]
The present invention has been made in view of the above-described problems, so that the striking device can be stably supported even when the foot pedal device is depressed, and noise generated on the floor surface can be reduced. The purpose is to do.
[0008]
[Means and Actions for Solving the Problems]
In order to solve the above-described problems, a leg structure of a striking surface device according to the present invention is, as one form, for supporting a striking surface device having a striking surface hit by a beater of a foot pedal device with a plurality of legs. The foot pedal device has a leg structure in a range surrounded by a grounding point where the plurality of legs are in contact with the floor surface. Is provided with an attachment portion for attachment to the leg or the striking surface device in a state in which the surface floats from the floor surface.
[0009]
According to another aspect of the leg structure of the hitting device according to the present invention, there is provided a leg structure for supporting a hitting device provided with a hitting surface hit by a beater of a foot pedal device with a plurality of legs. In the range surrounded by the grounding point where the leg of the pedal contacts the floor surface, the foot pedal device has the bottom surface part in contact with the floor surface on the swinging fulcrum side of the pedal, and the other part floats from the floor surface. It is attached to the leg or the hitting device.
As a result, the force acting in the floor direction when the foot pedal device is depressed is divided as the force acting in the floor direction on all the legs of the leg structure. Can be prevented from floating.
[0010]
Further, the leg structure of the hitting surface device according to the present invention is the above-described leg structure, wherein the swing fulcrum of the beater of the foot pedal device is located within a range surrounded by a grounding point where the plurality of legs are in contact with the floor surface. It is what you do.
As a result, even if a force in the floor direction acts on the swinging fulcrum of the beater when hitting the beater, the force is divided as a force acting in the floor direction on all legs of the leg structure. It is possible to prevent some legs from lifting due to the reaction of the blow.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 are views showing an embodiment of a leg structure of a hitting device according to the present invention. FIG. 1 is a side view of a hitting device portion of an electronic drum including the leg structure, and FIG. 2 is a plan view. is there. Here, the structure of the head and rim of the shell 1 and the structure of the foot pedal device 6 are the same as those described above. On the other hand, in this embodiment, the legs 87 described from the shell 1 are not used as the rear legs.
[0012]
That is, in this embodiment, horizontal support rods 83 extending to the left and right ends of the shell 1 are attached near the center of the shell 1 on the front side of the shell 1, and the front legs 81 and the rear legs 82 are respectively attached to the left and right ends of the support rod 83. Attach the support rod 83 so that it is in the shape of an inverted V around the center. Therefore, the shell 1 is erected on the floor surface 10 in a state where the shell 1 is in contact with the floor surface at a total of four points by the left and right front legs 81 and the rear legs 82 that are opened in an inverted V shape.
[0013]
The rear leg 82 has a portion projecting obliquely downward from the side wall of the rear leg 82 toward the front leg 81 at a position close to the floor surface, and the left and right rear legs 82 are connected to each other at the tip side. A connecting rod 86 extending in the horizontal direction is provided in a state where it floats by a certain clearance α from the floor surface. The central portion of the connecting rod 86 is processed so that the attachment portion 69 of the foot pedal device 6 can be attached. As a result, the attachment portion of the central portion of the connecting rod 86 is located in an area surrounded by four grounding points of the left and right front legs 81 and the rear legs 82.
[0014]
In a state where the foot pedal device 6 is attached to the central portion of the connecting rod 86, the bottom surface of the foot pedal device 6 on the tip side (the side where the beater 61 is located) is lifted from the floor surface 10, and eventually the foot pedal device 6 Is arranged in contact with the floor surface 10 only at the bottom surface of the base end side (the side where the pedal swinging fulcrum 67 is located). At this time, the swing fulcrum 66a of the swinging portion 66 that swings the beater 61 of the foot pedal device 6 is also located in an area surrounded by the four grounding points of the left and right front legs 81 and the rear legs 82.
[0015]
In this embodiment, since the leg structure is configured in this way, the force F0 for stepping on the foot pedal device 6 becomes a force F7 that works in the floor direction at the tip of the foot pedal device 6, and the force F7 Since the working place is located in an area surrounded by the four grounding points of the left and right front legs 81 and the rear legs 82, the force F3 acting in the floor direction at the grounding point of the rear legs 82 through the connecting portion by the leg structure 8 is further provided. And a force F5 acting in the floor direction at the ground contact point of the front leg 81. As a result, when the pedal 60 of the foot pedal device 6 is depressed, the force F5 acts not only on the rear leg 82 but also on the front leg 81 in the floor surface direction. It is possible to prevent the shell 1 from being raised, and it is possible to stably support the shell 1 portion with respect to the pedal depression operation.
[0016]
Further, the swing fulcrum 66a of the beater 61 of the foot pedal device 6 is also located in an area surrounded by the four ground contact points of the left and right front legs 81 and the rear leg 82. Even if a force is applied to the position in the floor direction, a part of this force is also divided as a force in the floor direction on the front leg 81 side as described above, thereby stabilizing the front leg 81. it can.
[0017]
Also, the floor-direction force F7 that acts on the mounting portion 69 on the front end side of the foot pedal device 6 when the pedal is depressed is distributed to a total of four of the left and right front legs 81 and the rear legs 82. F3 and F5 are sufficiently smaller than the force F7. Therefore, even if the floor surface 10 is hit with these forces, the generation of noise is sufficiently suppressed.
[0018]
In carrying out the present invention, various modifications are possible. For example, in the above-described embodiment, a leg structure having four legs is used, but the present invention is not limited to this. For example, in the above-described embodiment, the number of front legs 81 is two. However, the present invention is not limited to this. For example, as shown in FIG. 3, the number of front legs 81 may be one.
[0019]
In the above-described embodiment, the mounting portion for the foot pedal device 6 is provided on the rear leg 82 side. However, the present invention is not limited to this. For example, as shown in FIG. 81 and a rear leg 82, and for mounting the foot pedal device 6, the shell 1 is provided with one leg 87 extending in the floor direction, but the length of the leg 87 is shortened and the foot pedal device 6 is mounted. The bottom surface of the tip portion may float from the floor surface 10 when it is touched. Also in this case, it is obvious that the attachment portion 69 of the foot pedal device 6 is located in an area surrounded by four grounding points of the left and right front legs 81 and the rear legs 82. Of course, the mounting portion of the foot pedal device 6 may be provided on the front leg side.
[0020]
【Example】
Hereinafter, examples in which the leg structure of the hitting device of the present invention is shown more specifically will be described. FIG. 6 is a front view of a striking device as an embodiment of the present invention, FIG. 7 is a diagram in which a sectional line for showing a cross-sectional structure of a main part of the striking device in the front view of this striking device is entered, FIG. 5 is a side sectional view of the striking device taken along the line AA in FIG.
[0021]
1 to 3, first, the general configuration of this embodiment apparatus will be described. The opening on the back (player side surface) side of the shell 1 as a cylindrical body having both ends opened is struck. A head 3 as a surface is attached using a rim 9, and a foot pedal device 6 for hitting the head 3 with a beater 61 is attached to the head 3 side of the hitting device. The foot pedal device 6 is of a twin pedal type that can move two beaters independently.
[0022]
The shell 1 is supported at a position lifted from the floor by a leg structure 8 composed of four legs. Inside the shell 1, a plate-like frame 2 having a U-shaped cross section is fixed to the inner wall of the shell in the vertical direction from the top to the bottom. The impact sensor 4 and the buffer material 5 are attached to the frame 2, and the leading ends of the impact sensor 4 and the cushion material 5 are in contact with the head 3.
[0023]
The striking sensor 4 is fixed to the frame 2 by adjusting so that the tip side thereof is in proper contact with the head 3. The impact sensor 4 uses a piezoelectric element as a vibration detection element, and this piezoelectric element is fixed to the frame using a mounting plate. A frustoconical cushion member formed of an elastic body such as rubber or sponge is bonded to the piezoelectric element, and the tip end side of the cushion member is in contact with the head 3. Thereby, when the head 3 is hit, the hit sensor 4 can detect the vibration of the head vibration film due to the hit with the piezoelectric element via the cushion member, and can sound the drum sound source with the detection signal.
[0024]
The shock-absorbing material 5 is fixed to the bottom of the U-shaped groove of the frame 2 with a strong adhesive near the center of the frame 2 (and therefore near the center of the head 3). The shock-absorbing material 5 has a rectangular surface having a width corresponding to the two beaters 61 and includes the striking points, the base end side is bonded to the frame 2, and the tip end side is in contact with the head 3. The buffer material 5 has a three-layer laminated structure, in which the base end side is a highly elastic layer 53 made of a highly elastic material, the tip end side is an abrasion resistant layer 51 made of an abrasion resistant material, and the middle is a low elasticity. It consists of the low elastic layer 52 which consists of material. The low elastic layer 52 is made of a low elastic material so as to be able to absorb the impact at the time of hitting, and suppresses rebound of hitting by the beater 61 and excessive vibration of the vibration film, and improves the feel of hitting. Made of polyurethane sponge. The high elastic layer 53 is a layer interposed in order to keep the tip of the cushioning material 5 in contact with the head 3 even when the low elastic layer 52 is compressed and deformed by long-term impact. The wear resistant layer 51 is a layer for preventing the low elastic layer 52 from being worn, and for example, a nonwoven fabric is used.
[0025]
The head 3 is made of a net-like material, and as this net-like material, for example, two nets woven by a plain weave in which vertical and horizontal fibers are orthogonal to each other are laminated so that the direction of the weave is oblique to 45 °. Is used. Because of the elasticity of the mesh material, the head 3 can obtain a feeling close to that of a hit when the head of the acoustic drum is hit. Further, since it is made of a net-like material, air easily passes therethrough, and therefore it is possible to suppress the generation of a loud sound due to the vibration when the head 3 is hit.
[0026]
The rim 9 is formed by integrally molding a metal material into an annular shape. The head 3 and the rim 9 are attached to the shell 1 by first covering the shell 1 with the head 3 and then fitting the rim 9 on the head 3 and fixing with the adjustment screw of the attachment adjustment unit 7.
[0027]
The leg structure 8 is supported by a four-leg structure comprising two front legs 81 on the front side of the striking device and two rear legs 82 on the back side so that the striking surface of the striking device stands upright. Yes. The left and right front legs 81 and rear legs 82 are connected in an inverted V-shape at the support rod 83, and these four legs support the hitting device in an upright state. The support rod 83 is screwed to the attachment portion 11 provided at the position of the left and right inner walls of the shell 1 using the attachment member 84, thereby fixing the leg structure 8 and the shell 1. The left and right rear legs 82 are connected by a connecting rod 86 that is close to the floor surface and floats by a certain gap from the floor surface. The connecting rod 86 extends downward from the side wall of the rear leg 82 toward the front leg 81, and then extends horizontally between the left and right rear legs 82 to connect them. In the vicinity of the center of the connecting rod 86, a mounting portion 86a having a shape in which the pipe is crushed into a flat shape is formed so that the foot pedal device 6 can be mounted by the mounting portion 69 of the foot pedal device 6.
[0028]
The foot pedal device 6 is a twin pedal type that can operate two beaters 61 independently. The beater 61 is attached to the tip of a shaft 62, and this shaft 62 is attached to a swinging portion 66 that is a swinging fulcrum of the beater so as to be swingable. The swinging portion 66 is attached to the tip of the vertical support rod 64. There are two support rods 64 for the left and right beaters. The two support rods 64 are connected to each other by a connecting portion extending in the horizontal direction on the lower end side, and an attachment member 69 is attached to the connecting portion. The support rod 64 is detachably attached to the attachment portion of the connecting rod 86 using the attachment member 69. In this case, the lower end portion (bottom surface portion) of the support rod 64, that is, the bottom surface on the distal end side of the foot pedal device 6 is in a state of floating from the floor surface.
[0029]
A bedal support member 65 is attached to the support rod 64 so as to be rotatable at a fulcrum 68, and the pedal 60 is attached to the front end (the player side end) of the pedal support member 65 by the player's stepping operation. It is attached on the side so as to be swingable about the fulcrum 67. The pedal support member 65 has a bottom surface at the base end thereof grounded to the floor surface, but the bottom surface of the other portion is in a state of floating from the floor.
[0030]
A metal chain 63 is attached to the tip of the pedal 60. The metal chain 63 is connected to a swinging portion 66, and the shaft 62 can be swung in the head 3 direction by the swinging portion 66 when the pedal is depressed. ing. As a result, when the pedal 60 is not depressed (indicated by a broken line in the figure), the beater 61 is separated from the head 3 of the hitting device, and when depressed (indicated by a solid line in the figure), the beater 61 is separated. Swings and hits the head 3.
[0031]
Here, the front end of the pedal 60 of the foot pudal device and the swing fulcrum 66a of the beater 61 are positioned closer to the front leg 81 than the floor ground point of the rear leg 82. It will be located in the area surrounded by the grounding points of the legs 81 and 82 of the book.
[0032]
【The invention's effect】
As described above, according to the leg structure of the present invention, the force in the floor surface direction when the foot pedal device is depressed is partly divided and the force that pushes the grounding point of the front leg in the floor surface direction. Therefore, the front legs are not lifted up and stable even when the foot pedal device 6 is depressed. Therefore, the operational feeling when the foot pedal device 6 is stepped on is improved, and when this leg structure is applied to an electronic drum or the like, it is possible to prevent the impact sensor noise caused by the swing of the striking surface device due to the pedal stepping. Moreover, since the force in the floor direction when the pedal is stepped on is distributed to all the plurality of legs of the leg structure, it is possible to reduce the generation of noise down the floor.
[Brief description of the drawings]
FIG. 1 is a side view of a leg structure of a striking device as one embodiment of the present invention.
FIG. 2 is a plan view of the leg structure of the embodiment of FIG.
FIG. 3 is a diagram showing another embodiment of the present invention.
FIG. 4 is a diagram showing still another embodiment of the present invention.
FIG. 5 is a side sectional view of the striking device taken along the line AA in FIG. 7;
FIG. 6 is a front view of a hitting device as an embodiment of the present invention.
FIG. 7 is a diagram in which a cross-sectional line for showing a cross-sectional structure of a main portion of the hitting device is entered in a front view of the hitting device of the example.
FIG. 8 is a side view illustrating a conventional leg structure.
FIG. 9 is a plan view for explaining a conventional leg structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shell 2 Frame 3 Head 4 Impact sensor 5 Cushioning material 6 Foot pedal apparatus 7 Attachment adjustment part 8 Leg structure 9 Rim 60 Pedal 61 Beater 65 Pedal support member 69 Foot pedal apparatus attachment part 66 Beater rocking parts 81 and 82 leg

Claims (3)

A leg structure for supporting a hitting surface device having a hitting surface hit by a beater of a foot pedal device with a plurality of legs,
Within the range surrounded by the grounding point where the plurality of legs are in contact with the floor surface, the foot pedal device has its bottom surface portion in contact with the floor surface at the swinging fulcrum side of the pedal, and the other portions do not contact the floor surface . A leg structure of a striking surface device provided with an attachment portion for attaching to the leg or the striking surface device in a state. A leg structure for supporting a hitting surface device having a hitting surface hit by a beater of a foot pedal device with a plurality of legs,
Within the range surrounded by the grounding point where the plurality of legs are in contact with the floor surface, the foot pedal device has its bottom surface portion in contact with the floor surface on the swinging fulcrum side of the pedal and the other portions not in contact with the floor surface . The leg structure of the hitting device attached to the leg or the hitting device in a state . The leg structure of the hitting device according to claim 1 or 2, wherein the swing fulcrum of the beater of the foot pedal device is located within a range surrounded by a grounding point where the plurality of legs contact the floor.

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