TWI724693B - Tightening structure of musical instrument support - Google Patents

Abstract

A tightening structure of a musical instrument support includes a fixed part and a movable part that can rotate relatively. The movable part protrudes a cylindrical shaft along an axial direction. One side of the fixing member is recessed to form a cavity, wherein the bottom of the cavity forms a semicircular arc shape corresponding to the shaft column, and the shaft column extends into the cavity and abuts against the bottom of the cavity. The fixing member is provided with a screw hole connected to the top of the cavity, wherein the screw hole extends perpendicular to the above-mentioned axial direction. A tightening bolt is screwed in the screw hole, one end of which extends into the cavity is provided with a divergent end that abuts against the shaft column, and the other end is connected with a handle. Rotating this handle can drive the divergent end to abut the shaft , And then fix the movable parts.

Description

Tightening structure of musical instrument support

The present invention relates to a musical instrument stand, and particularly refers to a tightening structure of a musical instrument stand.

Some musical instruments, such as drums, cymbals, etc., are set in a fixed position for percussion to produce musical notes. However, different musicians have their own comfortable percussion habits, so that it is necessary to adjust the setting angle of the instrument.

A conventional musical instrument stand, as disclosed in the US Patent No. 7,395,994, has an angle adjustment device between the support rod and the assembled musical instrument, including a fixed chainring and a movable chainring. When the two are separated from each other, they move The sprocket can be pivoted relative to the fixed sprocket, thereby changing the setting angle of the musical instrument. When the movable sprocket is locked into the gap between the teeth of the fixed sprocket, the movable sprocket is locked, and the instrument is fixed accordingly. However, in this conventional structure, the angle of the musical instrument to be adjusted must be based on the width of the teeth of the movable chainring and the fixed chainring as the minimum unit, and only integer multiples of the width can be used as the adjustment range, and no fine adjustment of any angle can be made. As a result, the user cannot adjust the instrument to the most suitable position.

On the other hand, the angle adjusting device is further provided with a tightening bolt. After the instrument is adjusted to the required angle, the tightening bolt must be tightened to make the movable chainring engage the fixed chainring. The process of operating the tightening bolt takes a lot of time, and it also takes a lot of effort when it is tightened, resulting in inconvenience in use.

In view of this, how to improve the above-mentioned problem is the primary problem to be solved by the present invention.

The main purpose of the present invention is to provide a tightening structure for a musical instrument stand, which allows the setting angle of the musical instrument to be adjusted arbitrarily and steplessly, and can operate the tightening and fixing action of the musical instrument stand easily and effortlessly, and has the effect of convenient use.

In order to achieve the foregoing objective, the present invention provides a tightening structure for a musical instrument holder, which includes: a movable part provided with a first connecting portion connected to the musical instrument holder; the movable part protrudes along an axial direction with a cylindrical shape Axle; a fixing piece, which is provided with a second connecting portion connected to another instrument stand; one side of the fixing piece is recessed to form a cavity, wherein the bottom of the cavity forms a radius of curvature corresponding to the semicircle of the axis column In an arc shape, the shaft extends into the cavity and abuts against the bottom thereof; the fixing member is provided with a first screw hole communicating with the top of the cavity, wherein the first screw hole extends perpendicular to the axial direction; a A first tightening bolt screwed in the first screw hole, one end of which extends into the recess is provided with a divergent end, and abuts against the shaft column; the other end of the first tightening bolt is connected with a handle , Rotating the handle can drive the divergent end to abut against the shaft column, thereby fixing the movable part.

In one embodiment, the first connecting portion includes a through hole for connecting the instrument holder and a long groove extending in the same direction as the through hole and laterally communicating with the through hole; the movable member is provided with a first connecting hole to the long groove Two screw holes, and a second tightening bolt is screwed; the long groove is provided with a long spacer, and a first side surface is pressed tightly by the second tightening bolt, and then a second side surface is closely contacted with the instrument support , To fix the instrument stand.

Preferably, the movable part is provided with a pin hole connected to the long groove, the long spacer block is provided with a hole corresponding to the pin hole, and a plug pin penetrates the pin hole and the hole.

Preferably, the second side surface of the long spacer is provided with a concave arc corresponding to the shape of the musical instrument stand.

It is not difficult to obtain an in-depth understanding of the above-mentioned objects and advantages of the present invention from the following detailed description of the selected embodiments and the accompanying drawings.

1: fixed parts

10: The second connecting part

11: Alcove

111: first side

112: second side

12: The first screw hole

2: Moving parts

20: The first connection part

21: Axle column

22: Piercing

23: Long slot

24: second screw hole

25: The second tightening bolt

26: Long cushion

261: first side

262: second side

263: Concave arc

264: jack

27: pin hole

28: latch

3: The first tightening bolt

31: divergent end

32: handle

4, 5: instrument stand

Figure 1 is a three-dimensional schematic view of the first embodiment of the present invention; Figure 2 is a three-dimensional exploded schematic view of the first embodiment of the present invention; Figure 3 is a schematic cross-sectional view and a schematic view of the use state of the fixing member of the first embodiment of the present invention; 4 is a schematic diagram of the use state of the movable part of the first embodiment of the present invention after turning; FIG. 5 is a three-dimensional exploded schematic view of the second embodiment of the present invention; FIG. 6 is a schematic longitudinal sectional view of the movable part of the second embodiment of the present invention; Figure 7 is a schematic cross-sectional view of the movable part of the second embodiment of the present invention.

Please refer to Figures 1 and 2, which shows the first embodiment of the tightening structure of the musical instrument stand provided by the present invention. It includes a fixed part 1 and a movable part 2 rotatable relative to the fixed part 1, wherein the movable part The piece 2 is provided with a first connecting portion 20 to connect to a musical instrument stand 4, and the fixing piece 1 is provided with a second connecting portion 10 to connect to another musical instrument stand 5, so as to adjust the musical instrument stand 4 by rotating the movable piece 2 The setting angle.

On the other hand, the movable part 2 protrudes from one side along an axial direction with a cylindrical shaft 21, the fixed part 1 is recessed on one side to form a cavity 11, wherein the cavity 11 has a first side 111 and a second side 112. In this embodiment, the first side 111 is located at the bottom of the cavity 11, and has a radius of curvature corresponding to the semicircular arc of the shaft 21, and the shaft 21 extends into the The cavity 11 abuts against the first side 111 of the cavity 11 as shown in Figure 3; the second side 112 is located at the top of the cavity 11, and there is still a space above the shaft column 21, The fixing member 1 is provided with a first screw hole 12 communicating with the second side 112 of the cavity 11, wherein the first screw hole 12 extends perpendicular to the axial direction, and the first screw hole 12 is screwed with a first screw hole 12 One tighten the bolt 3. One end of the first tightening bolt 3 extends into the recess 11 and is provided with a gradually increasing outer diameter portion 31; the other end extends outside the fixing member 1, and is connected with a handle 32 to rotate the The handle 32 can drive the first tightening bolt 3 to rotate.

As shown in Figure 3, the divergent end 31 of the first tightening bolt 3 is attached to the outer peripheral surface of the shaft 21. When the first tightening bolt 3 is rotated by the handle 32, the first tightening bolt 3 is rotated by the handle 32. A tightening bolt 3 and the first screw hole 12 are screwed into each other. The divergent end 31 moves toward the shaft column 21 and gradually abuts against the shaft column 21 so that it is fixed and immovable, then the movable part It is attached to the fixing member 1 to fix the installation angle of the instrument stand.

When adjusting the setting angle of the instrument stand, the user only needs to turn the handle 32 so that the first tightening bolt 3 drives the divergent end 31 away from the shaft 21, and the movable part becomes a freely rotatable state. Furthermore, the setting angle of the instrument stand can be changed. Furthermore, when the divergent end 31 leaves the shaft 21, the movable member 2 can be rotated at any angle as shown in Fig. 4, and there is no threshold limit, so the user can follow his usage habits. Precisely adjust to the most suitable instrument stand setting angle.

Furthermore, since the divergent end 31 of the first tightening bolt 3 can quickly press or loosen the shaft 21 as soon as it touches or leaves the shaft 21, the user does not need to greatly Rotate the handle 32, and only need to rotate a little angle to operate the fixing or unlocking of the movable part 2 without consuming a lot of effort, so it has the function of convenient operation.

Figure 5 shows the second embodiment of the present invention. The structure of this embodiment is based on the structure of the aforementioned first embodiment, and the first connecting portion 20 of the movable member 2 for connecting the instrument stand 4 is further improved. In this embodiment, the first connecting portion 20 includes a through hole 22 and a long groove 23, wherein the through hole 22 is used for assembling a musical instrument stand, and the long groove 23 and the through hole 22 extend in the same direction and communicate laterally. The perforation 22. A second screw hole 24 is provided on one side of the movable member 2, which is connected to the long groove 23, and a second tightening bolt 25 is screwed in the second screw hole 24.

The above-mentioned long groove 23 is provided with a long spacer 26, which has a first side 261 facing the second tightening bolt 25, and a second side 262 facing the instrument stand 4, wherein in this embodiment, the The second side surface 262 forms a concave arc 263 corresponding to the shape of the instrument holder 4. When the second tightening bolt 25 is tightened, the second tightening bolt 25 abuts against the first side surface 261 of the long spacer block 26, so that the long spacer block 26 has a concave arc on the second side surface 262 263 touches the instrument support 4 and achieves a close contact. Accordingly, the long pad 26 is pressed against the instrument support 4 to position it.

As shown in Figure 6, although the end surface area of the second tightening bolt 25 is small, it presses the long spacer 26 against the instrument support 4, and the contact area between the long spacer 26 and the instrument support 4 is very large. , Which can generate greater friction, thereby increasing the fixing ability. On the other hand, as shown in Figure 7, the concave arc portion 263 of the long pad 26 is in close contact with the instrument holder 4, which increases Therefore, the contact area between the aforementioned long pad 26 and the instrument support 4 is improved, thereby generating greater friction and fixing ability, and preventing loosening.

Furthermore, in this embodiment, the movable member 2 is provided with a pin hole 27 connected to the long groove 23, and the long spacer block 26 is provided with a socket 264 corresponding to the pin hole 27, as shown in Fig. 6 It is shown that a plug 28 is used to pass through the pin hole 27 and the insertion hole 264 at the same time to position the long spacer block 26, so as to prevent the long spacer block 26 from coming out of the long groove when the second tightening bolt 25 is loosened. Fall out in 23.

However, the disclosure of the above embodiments is only used to illustrate the present invention, not to limit the present invention, so any replacement of equivalent elements should still belong to the scope of the present invention.

In summary, those skilled in the art can understand that this invention can clearly achieve the aforementioned purpose, and that it has actually complied with the provisions of the Patent Law, so it is necessary to file an application in accordance with the law.

1: fixed parts

10: The second connecting part

2: Moving parts

32: handle

4, 5: instrument stand

Claims (4)

A tightening structure for a musical instrument support, which includes: a movable part provided with a first connecting portion for connecting the musical instrument support; the movable part protrudes along an axial direction with a cylindrical shaft; a fixed part is provided with There is a second connecting portion connected to another instrument stand; one side of the fixing member is recessed to form a cavity, wherein the cavity has a first side and a second side, and the first side forms a radius of curvature corresponding to the The semicircular arc shape of the shaft column, the shaft column extends into the cavity and abuts against the first side; the fixing member is provided with a first screw hole communicating with the second side of the cavity, wherein the first screw hole is Extend perpendicular to the axial direction; a first tightening bolt screwed in the first screw hole, one end of which extends into the recess is provided with a divergent end portion, and abuts against the shaft; the first tightening bolt The other end of the tightening bolt is connected with a handle, and rotating the handle can drive the divergent end to abut against the shaft column to fix the movable part. The tightening structure of the musical instrument stand according to claim 1, wherein the first connecting portion includes a perforation for connecting the musical instrument stand and a long groove extending in the same direction as the perforation and communicating with the perforation laterally; the movement The member is provided with a second screw hole communicating with the long groove, and is screwed with a second tightening bolt; the long groove is provided with a long spacer, and a first side surface is pressed by the second tightening bolt, Furthermore, a second side surface is closely contacted with the musical instrument support to fix the musical instrument support. The tightening structure of a musical instrument stand according to claim 2, wherein the movable part is provided with a pin hole connected to the long groove, the long spacer is provided with a hole corresponding to the pin hole, and a pin penetrates In the pin hole and jack. The tightening structure of the musical instrument support according to claim 2, wherein the second side surface of the long spacer is provided with a concave arc corresponding to the shape of the musical instrument support.

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