JP6540036B2 - Exterior structure of electronic drum - Google Patents

Description

  The present invention relates to an exterior structure of an electronic drum having a substantially cylindrical exterior.

  Heretofore, in an acoustic bass drum, for example, a shell, a hoop and the like constitute the main appearance, and these are the exterior of the drum. The head to be struck is usually constructed by stretching a membrane. The shell is rigid and integral in order to properly stretch the membrane or to improve the hitting sound of the head.

  On the other hand, also in an electronic drum, for the reason of making the appearance resemble an acoustic drum, etc., the exterior is formed in a shape corresponding to a shell or a hoop (rim) (Patent Document 1 below).

JP, 2009-151178, A

  However, in the electronic drum, various functional parts including an electric component and a sound absorbing material are disposed not only on the outside of the exterior but also on the inside. In particular, with regard to the interior parts disposed inside the exterior, the installation operation is difficult at the time of manufacture, and it is not easy to perform maintenance when a failure occurs in the interior parts. In addition, since the exterior is integrally formed, it is not easy to change the appearance or change the function of the exterior after the fact. Moreover, when the exterior is made to resemble an acoustic drum and configured in a large size, the manufacturing facility also becomes large. In the case of manufacturing a cylindrical shell by molding with resin using a mold, it is necessary to provide a draft on the shell to ensure moldability, and it is difficult to make the shell into a clean cylindrical shape.

  The present invention has been made to solve the above-mentioned problems of the prior art, and its object is to facilitate the manufacture and maintenance and to make it possible to facilitate the subsequent alteration of the appearance and function. In providing the structure.

Exterior structure of an electronic drum according to claim 1 of the present invention in order to achieve the above object, a sheath structure of an electronic drum having a substantially cylindrical exterior that forms a part of external appearance, the outer instrumentation is circular is constructed by assembling parts products divided into a plurality in the circumferential direction, the plurality of the component, contains the component having the arranging portion for arranging a function part is detachably and said Rukoto.

  In addition, the code in the said parenthesis is an illustration.

According to the first aspect of the present invention, it is possible to facilitate manufacture and maintenance and to make it easy to make a posteriori change in appearance and function. Also, it is easy to change the function after the fact.
According to the second aspect of the present invention, it is possible to facilitate manufacture and maintenance and to make it easy to make a posteriori change in appearance and function. Further, maintenance can be easily performed from a desired direction by removing the shell component and the hoop component corresponding in position.

According to the third aspect , the manufacturing equipment can be simplified and miniaturized, and the manufacturing cost can also be reduced . According to 請 Motomeko 4, to increase the assembling accuracy between the components, it can facilitate assembly.

It is a longitudinal cross-sectional view of the electronic drum to which the exterior structure which concerns on one embodiment of this invention is applied. They are an exploded view (figure (a)) of the principal part of an electronic drum, a perspective view (figure (b)) showing one of hoop parts, and a perspective view (figure (c)) showing one of case parts. It is a longitudinal cross-sectional view of the electronic drum to which the exterior structure of a modification is applied. It is a schematic diagram which shows the modification of the division aspect of a housing | casing.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a longitudinal sectional view of an electronic drum to which an exterior structure according to an embodiment of the present invention is applied. The electronic drum 10 is configured as an electronic bass drum (kick drum). The drum body of the electronic drum 10 is formed by assembling the hoop 13, the connection member 16, the head 11, the housing 12, the buffer material 14 and the like.

  FIG. 2A is an exploded view of the main part of the electronic drum 10. FIG. 2 (b) is a perspective view showing one of the hoop components that constitute a part of the hoop 13. FIG. 2C is a perspective view showing one of the housing parts that constitutes a part of the housing 12.

  The electronic drum 10 has a drum body supported by a stand 20 (FIG. 1). Hereinafter, in the front-rear direction of the electronic drum 10, the player side (left side in FIG. 1) is referred to as the front side. A foot pedal device (not shown) is attached to the player side of the electronic drum 10, and the beater strikes the striking surface 11a of the head 11 by the pedal operation.

  The head 11 is integrally formed of an elastic member such as rubber, silicon or urethane, and the surface on the player side is the striking surface 11 a. The hoop 13 and the housing 12 are made of resin or the like. The shock absorbing material 14 is made of a material having a cushioning property. The connecting member 16 is made of resin such as hard resin, metal, wood or the like.

  The housing 12 and the hoop 13 cooperate to form a substantially cylindrical exterior that constitutes the main appearance of the electronic drum 10. That is, the housing 12 is a cylindrical shell type exterior member corresponding to a shell in an acoustic bass drum. The hoop 13 is a hoop-shaped exterior formed in an annular shape capable of covering a part of the housing 12 from the outer peripheral side. The head 11 is formed in a circular shape in plan view. The connecting member 16 is formed in an annular shape. The hoop 13, the connecting member 16 and the head 11 are concentrically assembled with their respective radial centers aligned with the cylindrical center axis C 0 of the housing 12.

  The housing 12 and the hoop 13 are each configured by assembling parts divided into a plurality (for example, six) in the circumferential direction around the axial center C0. First, the housing 12 consists of six components of housing parts 12A to 12F. The housing part 12A is shown in FIG. 2 (c). The basic shapes of the housing parts 12A to 12F are common to each other in an arc shape in a front view, but the shape of the attachment portion may be different according to the difference in the function to be performed (for example, the difference in attached electric parts etc.) . For example, in the lower housing part 12D, a relief portion for not interfering with the stand 20 is formed. Some of the housing parts 12A to 12F may have the same shape. Moreover, although the housing | casing 12 is divided | segmented at equal intervals in the circumferential direction, equal intervals are not essential.

  The hoop 13 is composed of six components of hoop parts 13A to 13F. The hoop part 13A is shown by FIG.2 (b). The aspect of division in the circumferential direction of the hoop 13 is the same as that of the housing 12 and divided into the same number as the housing 12. Accordingly, the divided positions of the housing parts 12A to 12F and the hoop parts 13A to 13F coincide with each other in the circumferential direction, and are arranged correspondingly. However, it is not essential that the division positions of the two coincide with each other.

  Similar to the housing parts 12A to 12F, the basic shapes of the hoop parts 13A to 13F may be the same as each other, and the shape of a part may be different. The hoop part 13D is provided with a relief for preventing interference with the stand 20. Among hoop parts 13A-13F, there may be one having the same shape.

  For example, two screw holes 12b are formed in each of the housing parts 12A to 12F at the front end 12a which is an opening on the player side in the cylindrical direction of the housing 12 (axial direction of the axial center C0). In each of the hoop parts 13A to 13F, for example, two through holes 13b are formed corresponding to the screw holes 12b. For example, twelve through holes 16b are formed in the connecting member 16 corresponding to the screw holes 12b and the fastening holes 13b (FIG. 2A). The connecting member 16 has a window 16 a that exposes the striking surface 11 a of the head 11.

  Although FIG. 1 demonstrates an example of the structure by which a drum main body is supported by the stand 20 about the electronic drum 10, a support structure is not limited to this. The stand 20 is made of metal or the like and has mounting portions 21, 22, 23. Each of the attachment portions 21, 22, 23 is a plate-like portion perpendicular to the axial center C0, and each of the attachment portions 22, 23 is annular as viewed from the front side.

  The cushioning material 14 is fixed to the front surface of the mounting portion 21, and the impact sensor 15 formed of a piezoelectric element or the like is disposed between the mounting portion 21 and the cushioning material 14. The cushioning material 14 may be formed of a plurality of layers, and the impact sensor 15 may be disposed between the layers of the cushioning material 14. The impact sensor 15 only needs to detect vibration, and the configuration thereof is not limited.

  The head 11 is fixed to the front surface of the mounting portion 22. The head 11 and the shock absorbing material 14 are fixed to the stand 20, and the front surface of the shock absorbing material 14 is configured to receive a slight compression force from the back surface of the head 11 in the non-impacted state. The front surface of the cushioning material 14 and the back surface of the head 11 may be slightly separated. The connecting member 16 is fixed to the front surface of the mounting portion 23. The fixing manner in the mounting portions 22 and 23 may be adhesion or screwing. The connecting member 16 may be fixed to the stand 20, and the fixing mode is not limited.

  The housing parts 12A to 12F and the hoop parts 13A to 13F are configured as the housing 12 and the hoop 13 by being assembled to the common connection member 16. First, the screw holes 12b of the housing parts 12A to 12F and the fastening holes 13b of the hoop parts 13A to 13F are aligned with the fastening holes 16b of the connecting member 16. In this state, the housing 12, the connecting member 16 and the hoop 13 are tightened by screwing the screw 17 from the front to the screw hole 12b at 12 places via the fastening hole 13b and the fastening hole 16b. Thereby, the casing parts 12A to 12F and the hoop parts 13A to 13F are positioned in the circumferential direction with reference to the fastening hole 16b of the connecting member 16, and they are assembled in a cylindrical shape. The hoop 12 and the annular hoop 13 are fixed to the connecting member 16.

  The housing parts 12A to 12F and the hoop parts 13A to 13F can be assembled to the connection member 16 one by one, and the work is easy. The components to be disposed inside the exterior may be disposed in advance, but the housing components 12A to 12F and the hoop components 13A to 13F may be fixed to the connecting member 16 without being disposed. Is also possible. Further, it is possible to remove the housing parts 12A to 12F and the hoop parts 13A to 13F temporarily fixed to the connecting member 16, and it is also possible to carry out after the product delivery.

  In such a configuration, when the striking surface 11 a of the head 11 is struck by a beater, the head 11 vibrates, and the vibration is transmitted to the striking sensor 15 via the buffer material 14. The impact sensor 15 converts the received vibration into an electric signal (voltage) and outputs it as a detection signal. Then, when the detection signal exceeds a predetermined threshold value, it is detected that an impact has occurred. A musical tone is generated by a musical tone generation mechanism (not shown) at a timing based on the detection result, that is, at a timing based on the detected timing and at a volume according to the level of the detection signal.

  According to the present embodiment, the substantially cylindrical exteriors (the housing 12 and the hoop 13) that constitute a part of the appearance of the electronic drum 10 are divided into a plurality of parts in the circumferential direction (housing parts 12A to 12F , And hoop components 13A to 13F). This makes it easy to arrange the interior parts at the time of manufacture. In addition, since the housing parts and the hoop parts are removable after the fact, it is easy to perform maintenance when a failure occurs in the interior parts etc. If the housing parts and the hoop parts are replaced, the external appearance It is also possible to change the function of the exterior and to change it later.

  Therefore, while being able to make manufacture and maintenance easy, it can make it easy to carry out a posteriori change of an appearance or a function.

  Further, as compared with the case where the housing 12 and the hoop 13 are integrally formed, since each housing part and the hoop part are small, enlargement of manufacturing facilities can be avoided. Furthermore, even in the case where the housing parts are manufactured by molding with resin using a mold, a large draft angle provided for securing the moldability is unnecessary, and it becomes easy to make the housing 12 into a clean cylindrical shape.

  Further, since the housing parts 12A to 12F and the hoop parts 13A to 13F are fixed to the common connection member 16, the assembling accuracy between the parts can be enhanced and the assembling can be facilitated. Further, if two or more of the housing parts 12A to 12F have the same shape, the manufacturing equipment can be simplified and miniaturized by sharing the parts, and the manufacturing cost can also be reduced.

  Also, since the housings 12 and the hoops 13 are divided into the same number, and the housing parts 12A to 12F and the hoop parts 13A to 13F are arranged corresponding to each other in the circumferential direction, the housing parts corresponding in position to each other It is easy to perform maintenance from a desired direction by removing 12A to 12F and hoop parts 13A to 13F as a set.

  In the present embodiment, the housing parts 12A to 12F and the hoop parts 13A to 13F are fixed to the connecting member 16 so as to be configured as an integrated housing 12 and a hoop 13, respectively. However, the exterior may be configured by assembling parts divided into a plurality in the circumferential direction, and the manner of fixing does not matter. As shown in a modified example in FIG. 3, the housing 12 and the hoop 13 may be fixed directly.

  FIG. 3 is a longitudinal sectional view of the electronic drum 10 to which the exterior structure of the modification is applied. The electronic drum 10 does not have the connecting member 16. With the screw holes 12b of the housing parts 12A to 12F aligned with the fastening holes 13b of the hoop parts 13A to 13F, the screw 17 is inserted from the front via the fastening holes 13b at 12 places (FIG. 2) The housing 12 and the hoop 13 are integrated with each other by screwing on (c).

  The stand 20 has an attachment 24. The attachment portion 24 is a notched or arc-shaped meat portion centering on the axial center C0. That is, the attachment portion 24 is a portion corresponding to a continuous or intermittent meat portion in the circumferential direction in an imaginary cylinder centered on the axial center C0. The inner peripheral surface of the housing 12 is fixed to the outer peripheral surface of the mounting portion 24. Although not shown, in each of the housing parts 12A to 12F, two screw holes orthogonal to the axial center C0 are formed, and corresponding to the screw holes, the mounting portion 24 is provided at 12 places in the circumferential direction, A fastening hole orthogonal to the axial center C0 is formed. Then, the housing parts 12A to 12F are fixed to the mounting portion 24 by screwing the screws 18 to the screw holes of the housing parts 12A to 12F from the inside, for example, via the fastening holes. Thereby, the housing 12 is integrated. The order of fixing the hoop 13 to the housing 12 and fixing the housing 12 to the mounting portion 24 does not matter. The frame member may be fixed to the inner circumferential surface of the mounting portion 24. In that case, the frame members are provided with a pair configured in, for example, a semicircular shape, and each is fixed to the base of the stand 20 and screwed to the housing 12 via the mounting portion 24 Ru. Alternatively, the mounting portion 24 itself may be formed with a portion corresponding to a skeleton.

  Also in such a configuration, the effects of facilitating the manufacture and maintenance and facilitating the subsequent change of the appearance and the function can be obtained.

  FIG. 4 shows a modification of the division aspect of the housing 12. The number of divisions of the housing 12 may be two or more, and may be seven odd as shown in FIG. 4. In this example, among the housing parts 12A to 12G, a part provided with an arrangement part for detachably arranging the functional part is included. For example, in the housing parts 12B, 12F, and 12E, arrangement parts 31, 32, and 37 are formed, respectively. As the functional units, the display unit 33, the operation unit 34, the electronic circuit unit 38, and the like can be disposed in the disposition units 31, 32, and 37, respectively. The electronic circuit unit 38 includes a sound source circuit, an input / output unit, and the like.

  In addition, for example, it is also possible to exchange the functional unit disposed in the disposition unit 31 and the functional unit disposed in the disposition unit 32 later. Alternatively, if the functional units disposed in the disposition units 31 and 32 can be replaced with other functional units, it is easy to change the function later.

  Further, legs 35 are formed or attachable to the housing parts 12C and 12E. A pedestal 36 such as a slide seat is formed or attachable to the housing part 12D. The functional unit is not limited to the illustrated one, but may include a power supply, a speaker, a cable connection unit, and the like.

  The housing parts 12A and 12G have the same shape. The housing parts 12B and 12F have the same configuration if the mounting parts 31 and 32 of the housing parts 12B and 12F have the same shape and one of the display part 33 and the operation part 34 can be selectively arranged. It is possible to realize a housing part having different functions while being shaped. The color of each housing part may be made different, and it becomes easy to increase the variation of the appearance or to change the appearance afterward. The configuration shown in FIG. 4 is also applicable to the hoop 13.

  In addition, as a substantially cylindrical exterior that constitutes a part of the appearance in the present invention, the one in which the hoop 13 and the housing 12 are integrated is also included. In that case, the divided parts are, for example, parts in which the housing part 12A and the hoop part 13A are integrally formed. Further, the exteriors to be divided may be either the hoop 13 or the housing 12 only. In the case where the back cover is fixed to the rear of the housing 12, the back cover may also be included in the exterior of the divided configuration.

  In addition, you may comprise mutually connectable the housing parts which will be adjacent, and the hoop parts. In that case, in addition to providing a physically coupled fastening portion, an electrical connection terminal is provided in the coupled portion, and when physically coupled, the signal line is electrically coupled. It is also good.

  Although the present invention has been described in detail based on its preferred embodiments, the present invention is not limited to these specific embodiments, and various embodiments within the scope of the present invention are also included in the present invention. included.

  DESCRIPTION OF SYMBOLS 10 Electronic drums, 11 heads, 12 housings, 13 hoops, 12A-12E housing parts (parts for shells), 13A-13F hoop parts (parts for hoops), 16 connection members, 31, 32, 37 arrangement parts

Claims (4)

An exterior structure of an electronic drum having a substantially cylindrical exterior that constitutes a part of the appearance,
The exterior is formed by assembling parts divided into a plurality in a circumferential direction ,
The plurality of the component, contains the component having the arranging portion for arranging a function part is detachably exterior structure of an electronic drum, characterized in Rukoto.   An exterior structure of an electronic drum having a substantially cylindrical exterior that constitutes a part of the appearance,
  The exterior is formed by assembling parts divided into a plurality in a circumferential direction,
  The sheath includes a shell-type sheath and a hoop-type sheath,
  An exterior structure of an electronic drum, wherein the shell-type exterior and the hoop-type exterior are divided into the same number of parts for shells and hoops so as to be disposed correspondingly in the circumferential direction. The exterior structure of an electronic drum according to claim 1 or 2 , wherein the plurality of parts include two or more parts of the same shape.   The exterior structure of an electronic drum according to any one of claims 1 to 3, wherein the plurality of parts are fixed to a common connecting member.