KR830001549B1 - Keyboard instrument with removable box leg - Google Patents

Abstract

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Description

Keyboard instrument with removable box leg

1 is a perspective view showing an example of a keyboard musical instrument according to the present invention.

2 is a longitudinal sectional view of FIG.

3 is a rear view of the front plate of FIG.

4 is a longitudinal sectional view of the front plate of FIG.

5 is a partial cross-sectional view showing the engagement of the clasp brace connecting the upper part of the lower front plate with the side plate and the restraint support of the front plate.

6 is a partial cross-sectional view showing the engagement of the latch and bushing connecting the side plate with the lower part of the lower front plate.

7 is a folded state showing the folded state of the side plate.

8 is an enlarged cross-sectional view showing the coupling of the back plate clasp support and the rail shown in FIG.

9 is a plan view of the lower back plate of FIG. 9 (a) and a side view of FIG. 9 (b).

FIG. 10 is a plan view of the back plate restraint support shown in FIG. 8 and FIG. 10 (a) and a longitudinal sectional view of FIG. 10 (b).

Figure 11 is a side view showing another embodiment for connecting the body and the side plate.

12 is a partial cross-sectional view showing another embodiment of connecting the back plate to the main body.

The present invention relates to a keyboard musical instrument, more specifically, a box-type having a main body consisting of an electronic component and a keyboard portion working together with a keyboard portion for sounding music, and a pair of side plates arranged parallel to each other to support the body. It relates to a keyboard musical instrument formed of the front and back plates side by side with a gap between the legs and both side plates.

Instruments having such a structure include home electric organs and group educational instruments, and in order to transport these instruments, the whole package must be packed, so that the packaging becomes bulky so that the transportation efficiency can be impaired and the instrument can be damaged. Will also be large.

Conventional instruments such as the side plate supporting the main body is formed on both sides of the main body and the front plate and back plate is fixed to the bottom of the main body by the L-shaped fittings and screws, the assembly of the instrument was relatively easy to be complicated.

The present invention aims to provide a keyboard musical instrument having a boxed leg that can be detached or folded to greatly improve transportation efficiency, and also improves the assembling structure of the side plate, the front plate and the back plate supporting the main body, It is one of the aims to make the disassembly extremely easy.

In order to achieve the above object, the keyboard musical instrument is composed of a main body and a leg portion supporting the main body, and the main body has a box-shaped structure for storing a keyboard and electronic parts used jointly with the keyboard, and the structure of the leg portions is spaced apart. They are parallel to each other, and consist of both side plates supporting the main body, the front and back plates connecting the side plates side by side at a distance from each other, and connecting parts installed at each corner between the side plates, the front plate and the back plate.

In this invention both side plates are connected to the body by hinges or doveteil joints.

The invention is described in detail by the accompanying drawings as follows.

As shown in FIG. 1 and FIG. 2, the instrument 1 has a front plate 3 which is assembled in a box shape to form a leg which firmly supports the main body 2, the side plates 4A and 4B, and the back plate 5 And a main body (2) in which the keyboard is stored, and the main body (2) has left and right side plates (7a) (7b), a base plate (7), a cover plate (8), a front rail (9) and a back plate. It consists of 10, and the front upper part is made into the box shape of the open state. The main body 2 of such a structure is equipped with a manual keyboard 11, various electronic control devices 13a, electronic parts 13b, and the like, and the manual keyboard 11 is arranged in a plurality of open rear ends of the main body. The electronic steering apparatus 13a is composed of a rotary and slide variable resistor, a push button switch, and the like installed on the control panel 12 located at the rear end of the keyboard 11, and the electronic part 13b is a key. It is formed of circuit components interlocked with the key.

The upper end of the cover plate 8 is provided with a key cover 15 which is rotatably attached to the cover plate 8 at one end thereof by a hinge 14, so that the front upper end of the main body 2 is in an open state. Covered by the key cover 15, the keyboard 11 and the electronic control device 13a is protected from the outside.

Incidentally, the main body 2 may have a structure which is completely the same as the parts of various conventional keyboard musical instruments.

As shown in FIGS. 2 to 4, the front plate 3 constituting a part of the leg portion of the main body 2 is divided into an upper front plate 31 and a lower front plate 32 along a middle transverse line. It is connected by the hinge 16 (three in FIG. 3), and can be folded to the front as shown by the dashed-dotted line of FIG. The two side plates 4A and 4B are connected to the bottom end portion of the main body 2 so that they can be folded under the bottom of the main body (the seventh dashed line portion during the seventh), and the front plate 3 is the two side plates 4A ( It is located slightly ahead of the main body 2 from the vertical center line of 4B), and is attached to be detachable from the main body 2 as well as the side plates 4A and 4B. In other words, the base plate 7 is formed at the bottom thereof with a joining portion formed in a long groove shape so that the upper end portion 31a of the upper front plate 31 is inserted. On the inner surface and upper and lower corner portions of the lower front plate 32, left and right pairs of plastic locking fixtures 18 and left and right pairs of plastic clasps 19 are fixed with screws, respectively.

In FIG. 5, the clasp support 18 of the front plate adjacent to the side plate 4A is shown engaged with the clasp 23 of the side plate 4A, which is generally rectangular and has a side view. The portion adjacent to the plate 4A protrudes from the tip portion 21 away from the side plate 4A, and the protrusion portion 2C is formed with a joining space portion 20a inclined downward so as to have a concave shape at its head. Thus, the annular projection 22 is made around the joining space portion 20a, and a through hole 21a is formed at the connecting portion between the annular projection 22 and the tip portion 21. The through hole 21a is half covered by the joining protrusion 22a protruding from the side of the annular protrusion 22 to cover the through hole 21a. An inclined reverse taper portion 22b is formed.

The lock ball 23 is fixed to the inner surface of the side plate 4A in the form of facing the lock ball support 18.

The clasp 23 consists of a plastic support 24, a metal clasp 26, a spring 28 and a truncated cone 29, respectively, which are fixed to the side plate 4A by screws. The metal clasp 26 is formed with a U-shaped bent portion 26a to be rotated on the plastic support 24 by the pin 25, and the spring 28 is formed in a space part formed inside the plastic support 24. 27, the metal clasp 26 is always pressed in the clockwise direction, and the truncated cone portion 29 is distal to the front end portion of the plastic support 24 to engage with the joint space portion 20a of the clasp support 18. Protrude from.

On the other hand, the clasp 19 is generally L-shaped as shown in FIGS. 4 and 6, and is fixed to the lower front plate by screws, and the joining space portion is formed at the center of the inner side 33 of the vertical portion 19a. 34 is formed, the bonding space portion 34 forms a U-shaped space portion together with the lower front plate 32 at a position facing the lower front plate 32, both sides of the bonding space portion 34 is inclined portion 35 Through the inner side 33 of the vertical portion 19a.

The plastic bushing 36 is fixed to the inner surface of the side plate 4A by a screw 37 in accordance with the clasp 19, and includes a neck portion 36a, a joining head 36b, and a reverse taper portion 36c. ), The neck portion 36a has a smaller diameter than the gap between the inner side 33 of the clasp 19 and the lower front plate 32, and the joining head 36b has a joint space portion 34 of the clasp 19. Has a diameter slightly smaller than the distance between the bottom wall of the bottom wall and the lower front plate 32, and the reverse taper portion 36c is fitted to the inclined portion 35 of the clasp 19 so that the neck portion 36a and the joining head It is formed in the coalescing part between 36b.

Another side plate 4B and the connecting member of the front plate 3 are made in the same manner as described for the side plate 4A.

When the front plate 3 is to be assembled to the main body 2 and the side plates 4A and 4B, the upper front plate 31 and the lower front plate 32 are folded forward as shown in the dashed-dotted line in FIG. In the state that the latch 19 is coupled to the bushing 36 as shown in FIG. 6, the upper front plate 31 and the lower front plate 32 form a straight line, and the upper end 31a of the upper front plate 31 is Push them back until they fit into the recessed joint 17 of the base plate 7. In this case, while the front plate 3 cannot be moved up and down, front and rear, left and right directions, the truncated cone part 29 of the clasp 23 is detachably attached to the main body 2 and the side plates 4A and 4B. ) Is engaged with the joint space portion 20a of the clasp support 18 as shown in FIG. 22 is coupled to the joint protrusion 22a. When the joining portion 26 is coupled to the reverse taper portion 22b formed on the joining protrusion 22a, when the side plates 4A and 4B and the lower front plate 32 are engaged with a little vibration, the spring 28 is pressed. By action, the bonding state becomes more certain.

"형부분(16b) 및 수직부분(16c)으로 구성되어 있는데 L자 부분(16a)은 상부앞판(31)의 하단부 내면에 고정되고, "

"형 부분(16b)은 그 하단부가 하부앞판(32)의 상단부에 고정되며, "

"형 부분(16b)의 상부측으로 연장형성된 수직부분(16c)은 상부앞판(31)의 하단부외면(또는 악기 연주자측)에 받쳐진다. 이렇게 해서 상부앞판(31)과 하부앞판(32)은 뒷방향으로 젖혀지지 않게 되면서 단일평면판과 같은 상태로 고정된다.Furthermore, each hinge connecting the upper front plate 31 and the lower front plate 32 has an L-shaped portion 16a, "

"It consists of a mold portion 16b and a vertical portion 16c, the L-shaped portion 16a is fixed to the inner surface of the lower end of the upper front plate 31,"

"The shaped portion 16b is fixed at its lower end to the upper end of the lower front plate 32,"

The vertical portion 16c extending toward the upper side of the "shaped portion 16b is supported by the lower outer surface (or the musical instrument side) of the upper front plate 31. In this way, the upper front plate 31 and the lower front plate 32 are rearward. It is fixed in the same state as a single flat plate while not being flipped in the direction.

On the other hand, the right side of the lower front plate 32 is formed with a closing moon 38 is equipped with a closing moon 38, the lower side by the two hinges 42 so that one side of the base plate 41 to be described later be folded up It is connected to the bottom right rear of the front plate (32).

Both side plates 4A and 4B are hinged 43 and 44 so that they can be flipped to the lower side of the main body 2 by the action of the hinges 43 and 44, as shown by the dashed-dotted line in FIG. The upper ends are connected to both ends of the underside of the base plate 7.

That is, the hinge 43 on the left side of the main body 2 is composed of a planar hinge member 43a attached to the base plate 7 and a hinge member 43b attached to the left side plate 4A. The hinge member 43b is folded. It is folded near the portion 43c and as a result, the left face plate 4A is folded together with the hinge member 43b and folded below the bottom of the base plate 7.

"형으로 접혀지므로 힌지부재(44b)가 2점쇄선과 같이 젖혀지면 우측면판(4B)은 좌측면판(4A) 아래에 일정한 간격을 두고 접히게 되어 양측면판이 서로 부딪히는 것을 막을 수 있다. 각 측면판(4A) (4B)이 하단부 앞과 뒤에는 합성수지로 형성된 고정편(45)이 부착되며, 양측면판(4A) (4B)이 손상되지 않도록 밑받침판(7)과 측면판(4A) 측면판(4A)과 측면판(4B) 사이를 각각 적당한 간격으로 유지한다.On the other hand, the right hinge 44 has a hinge member 44b whose flat hinge member 44a is attached to the base plate 7 inward more than the hinge member 43a and attached to the right side plate 4B. Longer than (43b),

Since the hinge member 44b is folded like a two-dot chain line, the right side plate 4B is folded at regular intervals below the left side plate 4A, thereby preventing both side plates from colliding with each other. 4A) A fixing piece 45 formed of synthetic resin is attached to the front and the rear of the lower end, and the base plate 7 and the side plate 4A side plate 4A so as not to damage both side plates 4A and 4B. And between side plates 4B are maintained at appropriate intervals, respectively.

The back plate 5 is a three-layer pressed board and has two parts similar to the front plate 3, and is formed of an upper back plate 51 and a lower back plate 52 as shown in FIG. The main body 2 and both side plates 4A and 4B are configured to be detachably attached to the inside of the rear end, and the lower back plate 52 is formed by a joint 53 having an H-shaped cross-section. 51) and the bottom. At the lower end of the back plate 10 of the main body 2, a joint 54 made of long grooves is made, so that the upper end 51 a of the upper back plate 51 is joined to the joint 54, and both side plates 4A and 4B. Since the inner end of the rear end of the joint portion 55 of the long groove is formed vertically, both side end portions of the back plate 5 slides into the junction portion 55 to be engaged. Inside the lower end of the lower rear wave, a U-shaped rear rail 56 with an opening facing upward is attached, and both ends of the rail 56 have connection ports 57a and 57b, as shown in FIG. Similarly, a pair of base plate latches (58a) and 58b are formed along the base wave 41. The base wave latches 58a and 58b are rotated to the left and right (arrows A and B in Fig. 9A). The lower end thereof is fixed by a pin 59 attached to the rear plate rail 56, and a clasp-shaped junction 60 is formed inside the upper end of the bottom plate rail 56. The rear end of the base plate 41 is provided. The bottom clasps 58a and 58b are always under the action of the tan ball spring 61 attached to the pin 59 in order to be tightly fixed to the upper end of the base rail 56 by the elastic force of the additional ball spring 61. The force tries to move in the direction of the arrow (A, B).

As shown in FIG. 4, a long groove 62 is formed below the rear end of the bottom plate 41 so that the upper end of the bottom plate rail 56 is inserted.

On the other hand, the rear plate fastener 65 is attached to the inner bottom portion of the rear end portions of the side plates 4A and 4B so as to abut on the connection ports 57a and 57b of the rear plate rail 56. The back plate fastener 65 is composed of a housing (Housinq) 66, a locking bolt 67 and a spring 68, respectively, as shown in FIG. 10, and the locking bolt 67 is moved to the housing 66 so as to move back and forth. It is enclosed and extends in the rear direction of the housing 66, and the head thereof has a shape in which the top and bottom are cut inclined, and the spring 68 is also enclosed in the housing 66 to push the locking bolt 67 in the right direction. give. Therefore, when the back plate 5 is inserted into the musical instrument 1 along the joint 55 of the side plates 4A and 4B, the locking bolt 67 is connected to the respective openings 57a and 57b of the back plate rail 56. Since the back plate 5 is engaged with the groove-shaped joint 54 of the main body back plate 10 and the joint 55 of the side plates 4A and 4B, the back plate 5 does not swing back and forth, left and right, or falls off. It is attached to the side plates 4A and 4B.

Next, a method of disassembling the keyboard musical instrument 1 having the structure described so far will be described.

First step: With the keyboard cover 15 closed, turn the instrument 1 upside down so that the bottom plate 41 is upward.

Step 2: As shown in FIG. 9, the bottom clasps 58a and 58b of the lower back plate 52 are flipped in the opposite direction to the resilience force of the carbon spring 61 to separate from the wave 41, and the bottom plate 41 is removed from the second wave 41. The rear end is separated from the rear plate rail 58 by turning in the direction of the arrow c of FIG.

Third step: The clasp 26 of the front plate fastener 23 is flipped counterclockwise against the resilience of the spring 28 of FIG. 5 so that the junction 26a of the clasp 26 is supported by the clasp 26 ) From the junction 22a.

Step 4: The front plate is pushed forward as indicated by the dashed-dotted line in FIG. 2 to separate the upper end 31a of the upper front plate 31 from the joint 17 of the base plate 7.

Step 5: Lift the latch 19 of the lower front plate 32 up (down in FIG. 2) from the bushing 36 of the side plates 4A and 4B, and then the front plate 3 and Remove the bottom plate 41.

The sixth step: When the knob 69 of the back platen 65 is pulled in the left direction of FIG. 10, the lock bolt 67 is pulled in the direction opposite to the spring force of the spring 68. The connection of the connection port (57a) (57b) and the locking bolt (67) is released and the lower back plate 52 can be lifted.

Step 7: Lifting the lower back plate 52 in the sixth step can lift the upper back plate 51 connected by the H-shaped joint 53 so that the entire back plate 5 is removed from the main body 2. .

Eighth Step: Fold the side plates 4A and 4B down the main body 2 as indicated by the dashed-dotted lines in FIG.

As described above, the musical instrument 1 is divided into four parts: the main plate 2, the side plates 4A and 4B, the front plate 3 including the bottom plate 41, and the upper and lower plates 51 and 52. If it needs to be reassembled, it is enough to assemble it in the reverse order of disassembly. Therefore, the transportation efficiency is greatly improved compared to the conventional musical instrument that is not easy to disassemble due to the small volume of the transport packaging. In addition, the front plate (3), the rear plate (5) and the bottom plate (41) are joined to the main body (2) and the side plate (4A) and (4B) without using screws, so it is necessary to use a tool such as a screwdriver for the assembly and disassembly. It is not only very easy, but also no parts such as screws are used, so there is no possibility to lose parts during joining and dismantling.

The present invention is not limited to the embodiments as described above, but can be applied and modified in various ways, such embodiments wherein the side plates 4A, 4B are folded by the hinges 43, 44 so that the body ( 2), but the present invention is not limited thereto, and such a connection may be modified in a manner in which the connection is detachable by a clamp, a latch, or the like. For example, an embodiment in which the side plate and the main body are connected by a dovetail fitting is shown in FIG.

That is, the member 7C in which the dove rail groove is formed is attached to the bottom surface of the main body 2 by a screw or an adhesive, and the side plate 4A is inverted frustum shape so that it can be inserted into the dove rail groove 7C. Overhang is formed on top With this structure, the side plates are attached to the removable body.

Meanwhile, in the previous embodiment, the upper and lower rear plates 51 and 52 and the H-shaped cross section 53 are detachably coupled to each other, but may be folded by a hinge similar to the structure of the front plate 3. .

In addition, the upper and lower front plates 31 and 32 may be made of a single plate so that the instrument can be lifted from the main body 2 like the rear plate 5 when the instrument is turned upside down, and the side plates 4A and 4B Unlike the previous embodiment, in which both long end grooves 55 are formed so that both ends of the back plate 5 slide into the inner side, the slider 81 attached to the back plate 5 is inserted as shown in FIG. The slider rail 8C which is used may be attached to the inside of the side plate 4A.

Moreover, it should be understood that the present invention is not limited to a structure having a connector such as a front plate, a chain support, or a back plate, and the use of a latch or the like may not be an idea outside the scope of the present invention.

As described so far, the present invention consists of a front plate 3, a back plate 5, a side plate 4A, 4B and a body 2 supporting the main body 2, so that the front plate 3 and the back plate 5 are It is connected to the removable body 2 and the side plates 4A and 4B, and the side plates 4A and 4B can be detached from the main body 2 or folded at the bottom of the main body 2. It relates to a box-type keyboard musical instrument having a structure. Therefore, assembling and dismantling of the instrument becomes very simple, and since the fasteners that require tools are not used to assemble the instrument, the number of parts is reduced and there is no fear of loss during assembly and dismantling.

When the instrument is packaged in a disassembled state, the volume is very small, which greatly improves the transportation efficiency and facilitates handling at the time of dropping. In addition, a combo-type keyboard musical instrument forms the mainstream for orchestra performance, but since the fixed musical instrument to which the present invention is applied can be easily disassembled, the fixed musical instrument to which the present invention is applied can also be used for orchestra performance. You can move it.

In other words, the musical instrument according to the present invention can be used for either home or band playing.

Claims (1)

In a keyboard musical instrument composed of a main body 2 composed of left and right side plates 6a, 6b, a milling plate 7, a cover plate 8, and the like, and a leg portion supporting the main body 2, the leg portion of the front plate ( 3) and the side plate (4A) (4B) and the rear plate (5) to be detachable, but the front plate (3) formed by the upper front plate 31 and the lower front plate 32 by the hinge (16) It is connected so as to be foldable, and the inner side of the lower front plate 32 forms a pair of clasp support 18 and a pair of clasps 19, respectively, and the rear plate of the lower front plate 32 with a hinge 42 on the bottom plate 41 And attach one end of the bottom plate 41 to the clasp-shaped joint portion 6C of the back plate 5, and attach the hinge 43 having a different shape to the side plates 4A and 4B under the main body 2. In order to be folded in turn and to form the fixing piece 45 and the junction 55, respectively, so that the back plate 5 is fitted, the back plate 5 is formed of the upper back plate 51 and the lower back plate 52, the upper Back panel 51 and lower back plate 52 The fitting box 53 is coupled between the lower back plate 52 and the rear plate rail 56 having the connection ports 57a and 57b at both ends thereof to the removable box-shaped legs combined with the rear plate fixture 65. Keyboard instrument with.

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