WO2014190456A1

WO2014190456A1 - Cajon

Info

Publication number: WO2014190456A1
Application number: PCT/CN2013/000825
Authority: WO
Inventors: 林天福
Original assignee: Lin Tianfu
Priority date: 2013-05-31
Filing date: 2013-07-08
Publication date: 2014-12-04
Also published as: CN203300199U

Abstract

A cajon has a frame (1) formed by four edgings, namely, an upper edging (11), a lower edging (12), a left edging (13), and a right edging (14). A striking surface (10) is fixedly disposed on the frame (1). Front ends of a left side plate (4) and a right side plate (5) are separately hinged on the left edging (13) and the right edging (14) of the frame (1). Front ends of an upper side plate (2) and a lower side plate (3) are separately connected to the upper edging (11) and the lower edging (12). Guide posts (22, 32, 42, 52) disposed on rear ends of the upper side plate (2), the lower side plate (3), the left side plate (4), and the right side plate (5) are separately inserted into guide holes (220, 320, 420, 520) disposed on corresponding positions on a rear plate (6). Screw guide blocks (7) are separately disposed on surfaces facing the inside of a box, of the upper side plate (2) and the lower side plate (3). Screw guide holes (70) are arranged on the screw guide blocks (7). Screws (8) pass through rear board screw guide holes (600) and the screw guide holes (70) arranged on the screw guide blocks (7) are connected inside nut guide holes (111, 121) in a screw manner, so that the screws (8) connect the rear plate (6), the upper side plate (2) and the frame (1), and the screws (8) connect the rear plate (6), the lower side plate (3) and the frame (1). A military drum type snare facing the striking surface (10) is hinged on the lower edging (12). Disassembly, assembly, transportation and carry of the cajon are more convenient, and sound effect and tone quality are various.

Description

Wooden drum

Technical field

The utility model belongs to a musical instrument, in particular to a drum.

Background technique

The wooden box drum is a drum type musical instrument, and its basic structure has a box body. One side of the box body is a striking surface, a sounding string is arranged inside the striking surface, and a sound transmitting hole is provided with respect to the rear plate of the striking surface. The musician hits the hitting surface and produces sound effects and sounds through the face and the string.

The disadvantages of prior art wooden drums are as follows:

1. The cabinet is professionally assembled, which cannot be disassembled after the finished product, and is inconvenient to transport and inconvenient to carry.

2. The box drum chord is 2 and fixed, and the sound effect and tone are specific.

3, can not add the sound film or directly lock the sound film into the impact panel with screws, complete the sound through resonance, the sound effect is fixed.

Utility model content

The utility model provides a wooden box drum, the purpose of which is to solve the shortcomings of the prior art, and to make the wooden box drum more convenient to disassemble, install, transport and carry, and the sound effect and the sound color are more varied.

The technical solution adopted by the utility model to solve the technical problems thereof is:

a wooden box drum having upper, lower, left, right side plates, a striking surface, and a rear plate connected into a box body, wherein the box body is connected with a striking string and a striking surface, and the rear panel is provided with a sound transmitting hole, wherein: a frame consisting of four upper, lower, left and right side bars, the striking surface is fixed on the frame; the front ends of the left and right side plates are respectively hinged on the left and right side bars of the frame, and the left and right side plates are rearward The ends are respectively provided with guide columns; the front ends of the upper and lower side plates are respectively connected to the upper and lower side bars of the frame, and the rear ends of the upper and lower side plates are respectively provided with guide columns; the upper, lower, left and right side plates are respectively arranged The guide posts provided at the rear end are respectively inserted into the guide holes provided at corresponding positions on the rear plate; The lower side plate is respectively provided with a screw guide block on the inner surface of the box body, and a screw guide hole is formed on the screw guide block, and the upper and lower side strips of the frame are respectively provided with nut guide holes in the form of screw holes corresponding to the positions of the screw guide holes, The rear plate is provided with a rear plate screw guide hole corresponding to the position of the screw guide hole, and the screw passes through the screw hole of the rear plate and the screw guide hole opened on the screw guide block, and is screwed in the nut guide hole, so that the screw will be The plate, the upper side plate, the frame are connected, and the screws connect the rear plate, the lower side plate, and the frame.

The connecting structures of the front ends of the upper and lower side plates respectively connected to the upper and lower sides of the frame are: the guide posts provided at the front ends of the upper and lower side plates are respectively inserted into the guide holes for the plates provided by the upper and lower side bars.

The connecting structure of the front ends of the upper and lower side plates respectively connected to the upper and lower side bars of the frame may be: the upper and lower side bars are respectively hinged with upper and lower connecting bars, upper and lower connecting bars respectively, and upper and lower side plates respectively The front end is hinged.

The upper and lower side plates are provided with a limit strip on the surface of the box body, and the left and right side plates respectively abut against the corresponding limit strips.

A snare drum string facing the striking face is articulated on the lower side bar.

A plastic suction cup is attached to the striking surface, and a sound piece is arranged between the two adjusting nuts which are screwed on the adjusting screw at the top of the plastic suction cup.

The utility model has the advantages that:

The utility model connects the upper, lower, left and right side plates of the box body in the form of hinged hinges or guide pillar guide holes, and then connects the components of the casing in the direction of the direction by using the long screws and the screw guide blocks, so that not only The box can be easily disassembled and folded into several plate-like objects, which is convenient for installation, transportation and carrying, and ensures the firmness of the assembled box; the lower side bar is hinged with a snare drum-shaped string facing the striking surface, which can be adjusted The contact between the snare drum and the striking surface produces different sound effects and timbres; the plastic sucker disc can be moved according to the needs of the sound effect, and the nut can be adjusted to adjust the tightness of the disc, thereby producing different Sound effects. DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Figure 1 is an external view of the utility model;

Figure 2 is a schematic view showing the structure of Embodiment 1;

Figure 3 is a schematic structural view of Embodiment 2;

Figure 4 is a schematic view showing the structure of a plastic suction cup type soundboard.

detailed description

As shown in FIG. 1 , FIG. 2 and FIG. 4 , the wooden box drum of the utility model is a box body in the form of a cube, and the box body is composed of an upper side plate 2 , a lower side plate 3 , and a left side. The plate 4, the right side plate 5, the striking surface 10, and the rear plate 6 are connected, wherein the striking surface 10 is used for striking sound, the inner cavity of the box is used for resonance, and the rear plate 6 is provided with a sound transmitting hole 60 for transmitting sound.

There is a frame 1 composed of an upper side strip 11, a lower side strip 12, a left side strip 13, a right side strip 14, and four side strips, and the striking surface 10 is screwed to the frame 1.

On the lower side rail 12, a snare-shaped chord 14 facing the striking face is hinged with a card type leaflet 13. The so-called card-type loose-leaf is the friction between the hinged hinges, which requires a certain external force to make it rotate. The snare drum string is a row of vertical strings that are fixed in a string frame. Both the card type leaflet and the snare drum type are prior art. Thus, the user passes through the sound transmission hole 60 of the rear panel 6 and reaches into the box to adjust the card type leaflet 13, so that the snare drum type 14 is attached to the strike surface 10 or separated from the strike surface 10 according to the use, thereby generating different sound effects. And tone.

A plastic suction cup 15 is attached to the striking surface 10, and two diaphragms 18 are interposed between the two adjusting nuts 17 screwed on the adjusting screw 16 at the top end of the plastic suction cup 15. The plastic suction cup can be moved according to the needs of the sound effect, and the adjustment nut 17 can be adjusted to adjust the tightness of the soundboard 18, thereby generating different sound effects. The front ends of the left side plate 4 and the right side plate 5 are respectively hinged on the left side strip 13 and the right side strip 14 of the frame 1 in an elongated shape or a plurality of flaps 41, 51, and the rear end sides of the left side board 4 and the right side board 5 are respectively Guide columns 42, 52 are provided.

The guide posts 21 and 31 provided at the front ends of the upper side plate 2 and the lower side plate 3 are inserted into the guide holes 110 and 120 of the upper side strip 11 and the lower side strip 12, respectively, so that the upper side plate 2 and the lower side plate 3 are provided. The front ends are respectively connected to the upper side strip 11 and the lower side strip 12 of the frame 1, and the rear side plates 2 and the rear side plates 3 are respectively provided with guide columns 22 and 32 at the rear ends thereof.

The guide post 22 provided on the upper side plate 2 is inserted into the guide hole 220 provided at the corresponding position on the rear plate 6, and the guide post 32 provided on the lower side plate 3 is inserted into the guide hole 320 disposed at the corresponding position on the rear plate 6, and left. The guide post 42 provided on the side plate 4 is inserted into the guide hole 420 provided at the corresponding position on the rear plate 6, and the guide post 52 provided on the right side plate 5 is inserted into the guide hole 520 provided at the corresponding position on the rear plate 6, so that the rear plate 6 is placed on the rear end of the side panel 2, the lower side panel 3, the left side panel 4, and the right side panel 5. The engagement of the guide post and the guide hole facilitates the tightness and firmness of the case.

The upper side plate 2 and the lower side plate 3 are respectively provided with screw guide blocks 7 on the inner surface of the box body, and the screw guide holes 7 are provided with screw guide holes 70 in the form of through holes, and both ends of the screw guide holes 70 face the frame 1 and the rear Plate 6, a total of 8 screw guide blocks 7 and 8 screw guide holes 70. The upper side strip 11 of the frame 1 is provided with two nut guide holes 111 in the form of screw holes corresponding to the positions of the screw guide holes 70 on the upper side plate 2, and the lower side strip 12 is provided with two screws on the lower side plate 3. The nut guide hole 121 in the form of a screw hole corresponding to the position of the guide hole 70 has a total of four nut guide holes. The rear plate 6 is provided with four rear plate screw guide holes 60 corresponding to the positions of the above eight screw guide holes 70, and the two screws 8 pass through the corresponding rear plate screw guide holes 60 and the screw guides provided on the screw guide blocks 7. The hole 70 is screwed into the nut guide hole 111, and the two screws 8 pass through the corresponding rear plate screw guide hole 60 and the screw guide hole 70 opened in the screw guide block 7, and are screwed into the nut guide hole 121, thereby the screw 8 The rear panel 6, the upper side panel 2, the upper side strip 11 of the frame 1 are connected, and the screw 8 connects the rear panel 6, the lower side panel 3, and the lower side strip 12 of the frame 1.

The upper side plate 2 and the lower side plate 3 are further provided with a limiting strip 9 on the surface facing the box body, and the limiting strip 9 can touch the limiting strip 9 when the left side plate 4 and the right side plate 5 are folded toward the middle of the box body. The limit is convenient for further installation.

When assembling: Open the left side plate 4 and the right side plate 5 outward, and insert the upper side plate 2 and the lower side plate 3 into the upper side respectively. Strip 11 and lower strip 12, pushing the left side plate 4 and the right side plate 5 inward until the limit strip 9 is restrained, and the rear plate 6 is placed on the upper side plate 2, the lower side plate 3, the left side plate 4, and the right side. On the rear end of the side plate 5, four long screws 8 are inserted correspondingly into the rear plate screw guide holes 60, and then through the upper side plate 2, the screw guide holes 70 provided on the screw guide blocks 7 on the lower side plate 3, The nut guide holes 111 and 121 provided on the upper side strip 11 and the lower side strip 12 are tightened, that is, the assembly of the box drum is completed. Disassembly is the opposite.

As shown in FIG. 3, the second embodiment differs from the first embodiment in that the front end of the upper side panel 2 and the lower side panel 3 are respectively connected to the upper side strip 11 and the lower side strip 12 of the frame 1. Differently: the upper strip 11 is first hinged with the upper sheet 113, the upper connecting strip 113, and the leaflet 114 is hinged with the front end of the upper side panel 2, and the lower side strip 12 is first hinged with the lower connecting strip 123 and the lower connecting line 122 respectively. The strip 123 is again hinged to the front end of the lower side panel 3 by a leaflet 124. Thus, the upper side plate 2 and the lower side plate 3 do not need to be detached as in the first embodiment, but can be folded or opened directly by folding, and are more convenient to disassemble, install, and transport. The purpose of the upper connecting strip 113 and the lower connecting strip 123 is to prevent the left side panel 4 and the right side panel 5 from being folded, and the upper side panel 2 and the lower side panel 3 are caught by the upper connecting strip 113 and the lower connecting strip 123. The height of the left side panel 4 and the right side panel 5 may be located outside the upper side panel 2 and the lower side panel 3.

Claims

claims

1. A wooden cajon has upper, lower, left and right panels, a striking surface, and a back panel connected to form a box. There are snare strings in the box that are connected to the striking surface, and the back panel is provided with a sound transmission hole. It is characterized by: : It has a frame composed of four side bars, upper, lower, left and right, and the striking surface is fixed on the frame; the front ends of the left and right panels are respectively hinged on the left and right panels of the frame, and the left and right panels The rear ends of the upper and lower side panels are respectively provided with guide posts; the front ends of the upper and lower side panels are respectively connected to the upper and lower side strips of the frame, and the rear ends of the upper and lower side panels are respectively provided with guide posts; the above-mentioned upper, lower, left and right sides The guide posts set at the rear end of the board are inserted into the guide holes set at the corresponding positions on the rear board; screw guide blocks are respectively provided on the surfaces of the upper and lower side panels facing the inside of the box, and screw guide holes are provided on the screw guide blocks, and the frame The upper and lower side strips are respectively provided with nut guide holes in the form of screw holes corresponding to the positions of the above-mentioned screw guide holes. The rear plate is provided with rear plate screw guide holes corresponding to the positions of the above-mentioned screw guide holes. The screws pass through the rear plate screw guide holes. , the screw guide holes opened on the screw guide block are screwed in the above-mentioned nut guide holes, so that the screws connect the back plate, the upper side plate, and the frame, and the screws connect the back plate, the lower side plate, and the frame.

2. The wooden cajon according to claim 1, characterized in that: the front ends of the upper and lower side plates are connected to the upper and lower side bars of the frame respectively. The connection structure is: the front ends of the upper and lower side plates are provided The guide posts are inserted into the plate guide holes provided on the upper and lower side strips respectively.

3. The wooden cajon according to claim 1, characterized in that: the front ends of the upper and lower side plates are respectively connected to the upper and lower side bars of the frame in a connection structure of: the upper and lower side bars are respectively hinged with upper and lower side bars. The lower connecting strip, the upper and lower connecting strips are respectively hinged with the front ends of the upper and lower side panels.

4. The wooden cajon according to claim 1, characterized in that: the upper and lower side plates are provided with limit strips on their surfaces facing the inside of the box, and the left and right side plates are respectively pressed against the corresponding limit strips.

5. The wooden cajon according to claim 1, characterized in that: a snare-style snare string facing the striking surface is hinged on the lower side strip. . The wooden cajon according to claim 1, characterized in that: a clicker is sandwiched between two adjusting nuts screwed on the adjusting screw at the top of a plastic suction cup on the striking surface.