Cajon

Abstract

Cajón, in its entirety: a box-like body (11) formed from a plurality of connection plates and having a receiving chamber (18), wherein a through-hole (19) is provided in the body (11) which can be connected to the receiving chamber (18) and an external component; and A pivoting device (21) which is arranged in the receiving space (18) and has a holder (22) which is attached to an inner surface (121) of one of the connection plates facing the receiving space (18), characterized in that a pivot axis (31) is pivotably arranged on the holder and a sound generating element (34) is attached to the pivot axis (31), which is movable synchronously with the rotation of the pivot axis (31) for sound generation, wherein one end of the pivot axis (31) projects outwards through the through-bore (19) of the body (11) and forms a drive part (36), so that a user can rotate the pivot axis (31) by exerting a force on the drive part (36) so that the sound generating element (34) attached to the pivot axis (31) is pivotable synchronously for sound generation.

Description

[0001] The present utility model relates to a percussion instrument, and in particular a cajón.

[0002] As in Fig. As can be seen in Figure 8, a conventional cajón essentially comprises a striking element 91 and a pedal element 92, which are connected to each other by a wire 93. To play, the striking element 91 is first positioned in front of the striking surface 941 of a cajón 94. The pedal element 92 is then placed to the side of the cajón 94. By pressing a pedal 921 of the pedal element 92, the wire 93 is tightened, causing the pivot joint 911 of the striking element 91 to rotate, thus enabling the mallet 912 of the striking element 91 to strike the striking surface 941 and produce sound.

[0003] Although the activation of the pedal element 92 enables a coupled movement of the striking element 91, the construction of a conventional cajón is relatively complicated, resulting in high manufacturing costs. Furthermore, the cajón 94, the striking element 91, and the pedal element 92 must be assembled separately, which increases the space requirement and makes transport and handling impractical.

[0004] In view of the above technical disadvantages, one objective of the present utility model is to provide a cajón that has a simplified component structure and allows for a small footprint and good transportability.

[0005] This problem is solved by claim 1. Advantageous further developments are characterized by dependent claims.

[0006] In a preferred embodiment, a drive element is additionally arranged on the drive part of the rotary axis, consisting of a shaft and a pressure plate. The outer circumference of the shaft is polygonal and is connected to the drive part at one end. The pressure plate has a first end and a second end, with a pivot hole formed at the first end, the shape of which corresponds to the outer circumference of the shaft. Furthermore, the pressure plate is detachably attached to the shaft so that it can move synchronously with the shaft.

[0007] In a further preferred embodiment, a drive element is provided on the drive part of the pivot axis, consisting of a connecting rod and a pedal element connected to the connecting rod. The pedal element has a pedal that can be actuated by the user and a second pivot axis. A connecting element is arranged between the pedal and the second pivot axis, which causes the second pivot axis to rotate when the pedal is actuated. The connecting rod is provided at each of its two ends with a universal joint, which is connected to the drive part and a drive of the second pivot axis, respectively, so that the connecting rod and the drive part rotate synchronously when the pedal is actuated.

[0008] The embodiments of the present utility model are described by way of example with reference to the following drawings. They show... Fig. 1 a perspective exploded view according to a first preferred embodiment of a cajón of the present utility model; Fig. 2 a perspective assembly view according to a first preferred embodiment of a cajón of the present utility model; Fig. 3 a top view according to a first preferred embodiment of a cajón of the present utility model; Fig. 4 a schematic view showing an application of a first preferred embodiment of a cajón of the present utility model before the actuation of the pressure plate; Fig. 5 a schematic view showing an application of a first preferred embodiment of a cajón of the present utility model after actuation of the pressure plate; Fig. 6 a schematic view showing the state of the shaft in an application of a first preferred embodiment of a cajón of the present utility model; Fig. 7 a perspective assembly view according to a second preferred embodiment of a cajón of the present utility model; and Fig. 8 A perspective view of the construction of a conventional cajón according to the state of the art.

[0009] As from the Fig. As can be seen from Figures 1 to 3, a first preferred embodiment of a cajón of the present utility model essentially comprises a box-like body 11 and a pivoting device 21 arranged therein.

[0010] The box-like body 11 is designed as a rectangular wooden box with a receiving compartment 18, which essentially comprises a front panel 12, a top panel 13, a back panel 14, a left side panel 15, a right side panel 16, and a bottom panel 17. The back panel 14 has a through-hole 141 that extends through the back panel 14 and the receiving compartment 18. The right side panel 16 has a through-hole 19 that extends through the side panel 16 and the receiving compartment 18. Alternatively, depending on user preference, the through-hole 19 can also be provided in the left side panel 15.

[0011] The pivoting device 21 is arranged in the receiving space 18 and has a plate-shaped bracket 22, which is attached to the underside 171 of the base plate 17 facing the receiving space 18. A frame is also arranged on the bracket 22, which in this preferred embodiment consists, for example, of a first vertical support 23, a second vertical support 24, and a third vertical support 25, which are arranged spaced apart in a row in the transverse direction. Furthermore, a pivot axis 31 is rotatably arranged on the first vertical support 23, the second vertical support 24, and the third vertical support 25. The pivot axis 31 also includes a drive unit 32 guided by the first vertical support 23 and the second vertical support 24, and a connecting element 33 guided by the third vertical support 25.Furthermore, a mounting part 321 is formed on the drive unit 32 between the first vertical support 23 and the second vertical support 24, and a sound-generating element 34 is arranged on the mounting part 321, which is movable synchronously with the axis of rotation (31) for sound generation. For this purpose, the drive unit 32 has a sleeve-shaped receiving part 322, which is arranged between the second vertical support 24 and the third vertical support 25. In addition, one end of the connecting part 33 extends towards the second vertical support 24 and is arranged to run through the receiving part 322. This allows the connecting part 33 to be displaceable relative to the receiving part 322, and its extension length corresponds to the different mounting requirements. Furthermore, a screw element 35 extending through the receiving part 322 can be screwed to the connecting part 33 so that the connecting part 33 can be connected to the receiving part 322.Another end of the connecting piece 33, which extends towards the third vertical support 25, projects outwards through the through-hole 19 and forms the drive part 36 of the pivot axis 31. The drive part 36 can be driven by an external force to move the pivot axis 31. A return spring 37 is arranged on an extension part 38 of the pivot axis 31 facing away from the drive part 36, with one end of the return spring 37 being connected to the extension part 38 of the pivot axis 31 and another end of the return spring 37 being attached to a spring retainer 26 of the support 22, so that the return spring 37 returns the pivot axis 31 to its initial position after a rotational movement. In this way, a cajón according to the invention can be advantageously designed.

[0012] In this preferred embodiment, the sound-generating element 34 is designed as a mallet which, when the axis of rotation 31 is rotated, strikes the inner surface 121 of the front plate 12 facing the receiving chamber 18 to produce a tone. Alternatively, the sound-generating element 34 can also be designed as a rattle or other shaking instrument (not shown in the drawing). This hand-operated musical instrument is also pivotable with the rotation of the axis of rotation 31, and regardless of whether it strikes the inner surface 121 of the front plate 12 or not, it produces a tone during the oscillation.

[0013] Preferably, a drive element 41 can also be attached to the drive part 36 of the rotary axis 31, enabling the user to rotate the rotary axis 31 relative to the drive element 41 by applying force from outside the body 11. In this preferred embodiment, the drive element 41 consists of a shaft 42 and a pressure plate 43. The shaft 42 is polygonal and is provided at one end with a pivot pin 44 consisting of two symmetrical tabs. The drive part 36 extends between the two tabs of the pivot pin 44, and an axle element 45 is arranged through the pivot pin 44 and the drive part 36, so that the shaft 42 and the drive part 36 are pivotably connected to each other. In this way, the shaft 42 can move the drive part 36 relative to itself and thus set the rotary axis 31 in rotation. At the same time, the shaft 42 is driven by the axle element 45.The pressure plate 43 can be folded around the drive part 36 as an axis and is rotatably mounted. It has a first end 431 and a second end 432 opposite the first end 431. At its first end 431, the pressure plate 43 has a corresponding pivot hole 46, which corresponds to the outer shape of the shaft 42. The pressure plate 43 is detachably connected to the shaft 42 by means of its pivot hole 46, so that it can move synchronously with the shaft 42. By force of the return spring 37, the extension part 38 is pulled, thus limiting the rotation of the pivot axis 31 and the shaft 42, whereby the second end 432 of the pressure plate 43 is raised in the rest position.

[0014] As in Fig. 4 and Fig. As can be seen in Figure 5, the user can press the second end 432 downwards by actuating the pressure plate 43, thus overcoming the tension of the return spring 37. This causes the second end 432 of the pressure plate 43 to rotate downwards, which in turn allows the shaft 42 and the associated pivot axis 31 to rotate synchronously. This allows the sound-generating element 34, consisting of a mallet, to rotate towards the front plate 12 and produce a sound when it strikes the inner surface 121. Conversely, if the user releases the force on the second end 432 of the pressure plate 43, the return spring 37 pulls the pivot axis 31 in the opposite direction. This returns the sound-generating element 34 and the pressure plate 43 of the drive element 41 to their initial position by the force of the return spring 37.

[0015] As previously described, the pivoting device 21 of a cajón according to the present utility model is preferably arranged directly in the receiving chamber 18 of the body 11. The rotation of the pivoting axis 31 can be controlled by means of the exposed drive element 41 on the drive part 36, corresponding to the pivoting device 21. This causes the sound-generating element 34, connected to the pivoting axis 31, to swing towards the front panel 12 and produce a corresponding sound when it strikes the inner surface 121. Compared to a conventional cajón, which requires both a striking element and a foot pedal on the outside of the body, the cajón proposed here simplifies the components and thus reduces manufacturing time and costs. Furthermore, the individual cajón is space-saving and easily transportable.

[0016] With regard to the bearing arrangement, the first preferred embodiment of the present utility model utilizes the fact that the shaft 42 of the drive element 41 is pivotably connected to the drive part 36 via the axle element 45. As in Fig. As can be seen in Figure 6, after removing the pressure plate 43, the shaft 42 can be advantageously folded around the axle element 45 so that it lies flat against the outer circumference of the body 11, which further facilitates storage and transport.

[0017] Although the present utility model has been described by means of a specific embodiment, numerous modifications and variations can be made. Fig.Figure 7 shows a second preferred embodiment, which differs from the first embodiment only in the drive method of the drive element. The only difference from the first preferred embodiment is the slightly modified drive method of the drive element 36. In the second preferred embodiment, the drive element 36 is connected to an additional drive element 51, which consists of a connecting rod 52 and a pedal element 53.

[0018] The pedal element 53 comprises a pedal 54, a second pivot axis 55, and a connecting part 56, which can be designed as a chain, steel cable, or belt. The connecting rod 52 is provided at both ends with cardan joints 521, 522, which are connected to the drive part 36 or a drive 551 of the second pivot axis 55, respectively, so that the sound-generating element 34, consisting of a mallet, can pivot when the pivot axis 31 is rotated towards the front plate 12, so that in this preferred embodiment, the sound-generating element 34 can also be moved by pedal actuation and enables it to generate sound when striking the inner surface 121 of the front plate 12. Reference symbol list

[0019] (State of the art) 91 striking element 911 Swivel joint 912 mallets 92 pedal element 921 Pedal 93 wire 94 Cajón 941 Striking surface (utility model) 11 Corpus 12 Front panel 121 interior surface 13 Cover plate 14 Backplate 141 Through hole 15 left side panel 16 right side panel 17 Base plate 171 Underside 18 Recording room 19 Through-hole 21 Swivel device 22 bracket 23 first vertical support 24 second vertical support 25 third vertical support 26 Spring holder 31 Rotation axis 32 Drive unit 321 Mounting part 322 Recording section 33 Connecting part 34 Sound generation element 35 screw element 36 Drive unit 37 Return spring 38 Extension part 41 Drive element 42 wave 43 Printing plate 44 Joint pin 45 axle element 431 first end 432 second end 46 joint holes 51 Drive element 52 Connecting rod 53 Pedal element 54 Pedal 55 second axis of rotation 56 Connecting part 521, 522 Cardan joint 551 Drive

Claims

[1] Cajón, encompassing: a box-like body (11) formed from a plurality of connection plates and having a receiving chamber (18), wherein a through-hole (19) is provided in the body (11) which can be connected to the receiving chamber (18) and an external component; and a swivel device (21) which is arranged in the receiving space (18) and has a holder (22) which is attached to an inner surface (121) of one of the connection plates facing the receiving space (18), characterized by, that a pivot axis (31) is pivotably arranged on the bracket and a sound generating element (34) is attached to the pivot axis (31), which is movable synchronously with the rotation of the pivot axis (31) for sound generation, wherein one end of the pivot axis (31) projects outwards through the through-hole (19) of the body (11) and forms a drive part (36), so that a user can rotate the pivot axis (31) by exerting a force on the drive part (36) so that the sound generating element (34) attached to the pivot axis (31) is pivotable synchronously for sound generation. [2] Cajón according to claim 1, characterized by, that a frame is provided on the support (22) which consists of at least a first vertical support (23) and a second vertical support (24) which are spaced apart, wherein the axis of rotation (31) is rotatably arranged on the first vertical support (23) and the second vertical support (24) and a mounting part (321) is provided between the first vertical support (23) and the second vertical support (24), wherein the sound generating element (34) is attached to the mounting part (321). [3] Cajón according to claim 1, characterized by, that a frame is arranged on the support (22) which consists of a first vertical support (23), a second vertical support (24) and a third vertical support (25) which are arranged spaced apart in a row, wherein the axis of rotation (31) is rotatably arranged on the first vertical support (23), the second vertical support (24) and the third vertical support (25), wherein the axis of rotation (31) consists of a drive unit (32) guided through the first vertical support (23) and the second vertical support (24) and a connecting part (33) guided through the third vertical support (25), wherein a mounting part (321) of the drive unit (32) is provided between the first vertical support (23) and the second vertical support (24) and the sound generating element (34) is attached to the mounting part (321). [4] Cajón according to claim 3, characterized by, that the drive unit (32) comprises a sleeve-shaped receiving part (322) between the second vertical support (24) and the third vertical support (25), wherein one end of the connecting part (33) extends in the direction of the second vertical support (24) and is arranged to pass through the receiving part (322), wherein a screw element (35) arranged extending through the receiving part (322) can be screwed to the connecting part (33) so that the connecting part (33) can be connected to the receiving part (322). [5] Cajón according to claim 1, characterized by, that a return spring (37) is arranged on an extension part (38) of the axis of rotation (31) facing away from the drive part (36), wherein one end of the return spring (37) is connected to the extension part (38) of the axis of rotation (31) and another end of the return spring (37) is attached to a spring holder (26) of the holder (22), so that the return spring (37) returns the axis of rotation (31) to its initial position after a rotational movement. [6] Cajón according to claim 1, characterized by , that the sound-generating element (34) is designed as a mallet which can pivot synchronously when the axis of rotation (31) is turned and strikes the inner surface (121) of the body (11) to generate sound. [7] Cajón according to claim 1, characterized by, furthermore, that a drive element (41) is arranged on the drive part (36) of the axis of rotation (31), wherein the drive element (41) has a shaft (42) and a pressure plate (43), wherein the shaft (42) has a polygonal outer circumference and is connected to the drive part (36) at one end, and wherein the pressure plate (43) has a first end (431) and a second end (432) opposite the first end (431), wherein a pivot hole (46) is formed at the first end (431), the shape of which corresponds to the outer circumference of the shaft (42), so that the pressure plate (43) is detachably connected to the shaft (42) and is movable synchronously with the shaft (42). [8] Cajón according to claim 7, characterized by, that a hinge pin (44) formed from two symmetrical tabs is provided at one end of the shaft (42), wherein the drive part (36) is arranged between the two tabs and the shaft (42) is articulated to the drive part (36) by means of an axle element (45) through which both the hinge pin (44) and the drive part (36) are arranged. [9] Cajön according to claim 1, characterized by, that a drive element (51) is additionally arranged on the drive part (36) of the axis of rotation (31), wherein the drive element (51) has a connecting rod (52) and a pedal element (53) connected to the connecting rod (52), wherein the pedal element (53) has a pedal (54) that can be actuated by the user and a second axis of rotation (55), wherein a connecting part (56) is arranged between the pedal (54) and the second axis of rotation (55), which causes the second axis of rotation (55) to rotate when the pedal (54) is actuated, wherein the connecting rod (52) has a universal joint (521, 522) at each of its two ends, one end of which is connected to the drive part (36) and the other end of which is connected to a drive (551) of the second axis of rotation (55), so that when the pedal (54) is actuated the connecting rod (52) and the drive part (36) are rotatable synchronously.

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