JPH0819081A - Elevating and descending device for microphone stand - Google Patents

Abstract

PURPOSE:To control the adjustment of vertical position of a microphone through remote control by providing an elevating/descending mechanism of the microphone, its power source, and a remote control transmitter and a remote control receiver controlling the drive of the power source to the device. CONSTITUTION:When an operation switch of a remote controller transmitter 11 supported by a switch base 12, an infrared ray is reflected on a ceiling and received by a remote control receiver 32, a motor is driven to drive a pinion gear 24. A flexible shaft meshing with the pinion gear 24 is supplied from a winder, then the flexible shaft inserted in a telescopic pipe is pressed up to push up the telescopic shaft, its force is delivered to an inner pipe 4 to raise a microphone 1. When the operation of the operation switch is stopped, the elevating motion of the microphone 1 is stopped because the radiation of an infrared ray from the transmitter is interrupted. When other operation switch is operated, the motor is reversed by a reverse signal from the transmitter, the flexible shaft is descended down to descend the microphone 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microphone stand lifting / lowering device capable of electrically expanding and contracting a stand for supporting a microphone by remote control operation.

[0002]

2. Description of the Related Art A microphone stand is generally used as a tool for supporting a microphone used in, for example, a stage. In the conventional microphone stand structure, a plurality of pipes are combined in a telescopic manner to have a large diameter. By screwing a lock nut provided on the side pipe, both the large and small pipes are frictionally coupled to each other, and the length of the microphone stand (the vertical position of the microphone) can be adjusted.

[0003]

As described above, in the conventional adjustment of the length of the microphone stand, the lock nut must be tightened or loosened manually, which makes the position adjustment of the microphone difficult. there were. Also, when trying to use a microphone on the stage such as a stage, the microphone height is often not set according to the height of the user. Depending on the, you have to manually adjust the height position of the microphone each time,
Due to this, there were problems such as lectures being interrupted.

[0004]

SUMMARY OF THE INVENTION The present invention has been made by paying attention to such a conventional problem, and the length (height) of a microphone stand is electrically adjusted to match the height of a microphone user by a remote controller. The purpose of the present invention is to provide a lifting device for a microphone stand that can be automatically adjusted.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings.

Reference numeral 1 is an existing microphone, and the microphone 1 is supported by a microphone holder 2. The holder 2 is detachably screwed to the connection member 3, and is provided so as to be replaceable depending on the shapes of the microphone 1 and the microphone holder 2.

Reference numeral 4 is an inner pipe, 6 is an outer pipe into which the inner pipe 4 is telescopically fitted, and 5 is a lock nut screwed to a connecting end portion of the outer pipe 6.

A winding box 7 is attached to the lower end of the outer pipe 6, and the winding box 7 is attached.
Are fixed on the base board 8. Reference numeral 9 denotes a cover that covers the winding box 7 and the base board 8.

At the upper end of the outer pipe 6,
A switch base 12 that supports a remote control transmitter 11 including operation switches 10A and 10B is attached.
Further, the infrared light emitting portion 13 of the remote control transmitter 11 is held on the switch base 12 so as to be directed to the ceiling. A remote control receiver 32 corresponding to the remote control transmitter 11 is fixedly held inside the cover 9 via a bracket 14.

Next, the internal structure of the inner pipe 4 and the outer pipe 6 will be described. The lower end of the inner pipe 4 is fitted in the upper end of the outer pipe 6, and the lock nut 5 screwed into the upper end of the outer pipe 6 is fastened to the inner pipe 4 via the friction member 15. The expansion / contraction position of is restricted.

A guide ring 1 made of, for example, hard rubber or plastic is provided inside the lower end of the inner pipe 4.
Part of the outer peripheral surface of 6 is press-fitted and fixed, and this guide ring 1
The outer peripheral surface of the other portion of 6 is slidably joined to the inner peripheral surface of the outer pipe 6 so that the inner pipe 4 can slide smoothly inside the outer pipe without backlash.

Further, in the inner pipe 4, a connecting member 1 is provided.
7 is fixed by a pin 18. 19 is a telescopic tube 20
This is a telescopic type contraction shaft that is inserted through the inside, and the tip of this expansion and contraction shaft 19 is fixed to the connecting member 17 via the center hole 21 of the guide ring 16. The lower end of the expansion tube 20 is inserted and held by a stopper 23 fixed by a pin 22 inside the lower end of the outer pipe 6.

Reference numeral 24 is a pinion gear fixedly held by a drive shaft 25 installed in the winding box 7, and the pinion gear 24 is of a motor 26 fixed outside the winding box 7. The drive force causes the drive shaft 25 to rotate in both forward and reverse directions.

Reference numeral 27 is a winder which is axially supported by the drive shaft 25 and is rotated independently of the rotation of the drive shaft 25.

Reference numeral 28 denotes a belt-shaped flexible shaft that is inserted into the expandable tube 20, and a rack 29 that meshes with the pinion gear 24 on one side of the flexible shaft 28.
Are formed. Further, the upper end of the flexible shaft 28 is
It is connected to the lower end of the expandable shaft 19, and the lower end thereof is wound by the winder 25 through a meshing portion with the pinion gear 24.

The structure of the present embodiment has been described above. Next, its operation will be described. When the operation switch 10A of the remote control transmitter 11 currently held on the switch base 12 is operated, as shown in FIG. The infrared rays are emitted toward the ceiling, and the infrared rays reflected by the ceiling are received by the remote control receiver 32 held in the cover 9, and as a result, the motor 26 is driven and the pinion gear 24 is rotated. The flexible shaft 28 meshed with the pinion gear 24 is pushed out from the winder 27, so that the flexible shaft 28 inserted into the expandable tube 20 is pushed up, whereby the expandable shaft 19 is pushed up. The pushing force of the telescopic shaft 19 is transmitted to the inner pipe 4, the microphone 1 rises, and if the operation switch 10A is not operated, the infrared radiation from the transmitter is interrupted, so that the microphone raising operation is stopped. Next, when the operation switch 10B is operated, the motor 26 is reversely rotated by the reverse rotation signal from the transmitter, and the pinion gear 24 is also rotated in reverse, whereby the flexible shaft 28 meshed with the pinion gear 24 is the winder 27. The flexible shaft 28 fed into the telescopic tube 20 as a result is pulled down, whereby the microphone 1 is lowered. If the operation switch 10B is not operated, the microphone lowering operation is stopped.

As described above, in this embodiment, the switch base 12
When the remote control transmitter 11 that is still mounted on the top is operated, infrared rays from the transmitter 11 are reflected by the ceiling and received by the remote control receiver 32. The microphone can be moved up and down without removing it.

Of course, as shown in FIG. 6, the remote control transmitter 11 on the switch base 12 is removed from the switch base 12,
It is also possible to direct the light emitting section 13 directly to the remote control receiver 32 to irradiate infrared rays.

FIG. 7 shows another embodiment of the present invention. In this embodiment, the remote control receiver 32 is mounted via the bracket 14 attached to the upper end of the outer pipe 6.
The receiving surface of is arranged so as to face the light emitting unit 13 of the remote control transmitter 11.

Therefore, according to this embodiment, the switch base 12
By operating the operation switches 10A and 10B of the remote control transmitter 11 mounted on the remote control transmitter 11, the infrared signal emitted from the remote control transmitter 11 is directly received by the remote control receiver 32 to control the elevation of the microphone stand. Therefore, it is advantageous as an elevating / lowering device for a microphone stand used on a stage having no ceiling such as outdoors.

As described above, in the microphone stand lifting / lowering device of this embodiment, since the vertical position adjustment of the microphone held on the stand can be operated by the remote controller, the vertical position adjustment of the microphone can be smoothly performed without any trouble. And easy to do.

In this embodiment, the remote control transmitter 11 is left on the switch base 12 or the switch base 1 is used.
Since it can be detached and operated from 2, the operability of the microphone vertical position adjustment is good.

As described above, the present invention relates to a microphone stand having an elevating mechanism for vertically moving a microphone, a power source for the elevating mechanism, and a remote control transmitter 11 and a remote control receiver 32 for driving and controlling the power source. Since it is an elevating device, according to this, the vertical position adjustment of the microphone held on the stand can be operated by the remote control, so that the vertical position adjustment of the microphone can be performed smoothly and easily without being bothered. The effect is obtained.

[Brief description of drawings]

FIG. 1 is a structural explanatory view showing an appearance of a microphone stand according to an embodiment of the present invention.

FIG. 2 is a sectional view showing the internal structure of the microphone stand of the embodiment of the present invention.

FIG. 3 is a sectional view showing a base portion of the microphone stand according to the embodiment of the present invention.

FIG. 4 is an explanatory view showing a remote control transmitter.

FIG. 5 is an operation explanatory diagram of the microphone stand according to the embodiment of the present invention.

FIG. 6 is another operation explanatory view of the microphone stand according to the embodiment of the present invention.

FIG. 7 is an external view of a microphone stand showing another embodiment of the present invention.

[Explanation of symbols]

1 ... Microphone 2 ... Microphone holder 3 ... Connection member 4 ... Inner pipe 5 ... Lock nut 6 ... Outer pipe 7 ... Winding box 8 ... Base board 9 ... Cover 10A, 10B ... Operation switch 11 ... Remote control transmitter 12 ... Switch stand 13 ... Light emitting part 14 ... Bracket 15 ... Friction member 16 ... Guide ring 17 ... Connection member 18 ... Pin 19 ... Expansion shaft 20 ... Expansion tube 21 ... Center hole 22 ... Pin 23 ... Stopper 24 ... Pinion gear 25 ... Drive shaft 26 ... Motor 27 ... Winder 28 ... Flexible shaft 29 ... Rack 30 ... Battery 31 ... Control circuit unit 32 ... Remote control receiver

Claims (2)

[Claims] 1. A microphone comprising a lifting mechanism for vertically moving a microphone, a power source for the lifting mechanism, and a remote control transmitter (11) and a remote control receiver (32) for driving and controlling the power source. Lifting device for microphone stand. 2. The remote control transmitter (11) is mounted on a switch stand (12) fixed to an outer pipe of a microphone stand, and the light emitting portion of the remote control transmitter (11) is directed upward from the switch stand. The microphone stand lifting / lowering device according to claim 1, wherein the remote control receiver (32) is detachably held, and the remote control receiver (32) is installed on the microphone stand in a front obliquely upward direction or a front oblique downward direction.