JPH0722945Y2 - Mobile loudspeaker structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a wireless microphone type mobile loudspeaker structure suitable for use in a classroom or an auditorium of a university, and is particularly easy to move and store. As described above, the present invention relates to a loudspeaker in which a wheel and an antenna are retractable.

[Conventional technology]

Conventionally, loudspeakers made up of fixed wireless microphones have been installed in classrooms and auditoriums.

[Problems to be solved by the device]

If the loudspeaker is configured to be movable, it would have to be equipped with wheels, handles for pushing, etc., which would be an obstacle when moving or storing.
Further, it is not impossible to embed such an obstacle inside the loudspeaker, but since the loudspeaker is provided inside the loudspeaker, there is a limitation in selecting the position.

[Means for Solving the Problems]

This invention is intended to obtain a moving type loudspeaker which eliminates the above-mentioned problems and is easy to carry and store and has a simple structure. A wheel 6 that can be bent rearward is provided, a flat stand leg 7 is provided on the bottom surface of the rear portion so that it can be bent forward, and an antenna 5 and a hand-pushing handle 9 are provided on the upper surface of the box body 2. The handle 9 is attached so that it can be retracted by legs arranged on the left and right sides of the cone of the loudspeaker 3, while the antenna 5 is provided so as to be retractable on the rear side of the cone of the loudspeaker 3.

[Action]

Since the substantially conical loudspeaker 3 is opened on the front surface of the box body 2, a relatively large space is provided inside the box body 2 around the cone of the loudspeaker 3, that is, on the left and right with the axis of the loudspeaker 3 interposed therebetween. Is formed.

The antenna 5 and the push handle 1 provided on the upper surface of the box body 2 are retracted to the left and right of the rear part of the box body 2 while avoiding the conical loudspeaker 3 extending from the front surface to the rear part toward the center. Further, the wheel 6 is bent from the front part to the rear part where the space is expanded,
The stand leg 7, which is made thin in a plane, can be bent toward the front side where there is little space, and can be retreated to the left and right of the bottom surface of the box 2.

〔Example〕

The present invention will be described below with reference to the illustrated embodiment. In the drawings, reference numeral 1 is a mobile loudspeaker according to the present invention. The mobile loudspeaker 1 has, as its main functions, a loudspeaker 3 having a substantially conical vibration surface which is opened and accommodated in a front surface of a box body 2, a receiver, and an antenna 5 thereof. Note that 2a
Are the legs provided at the four corners of the bottom of the box 2, and the loudspeaker 1
Works when you place it on the ground. Reference numeral 4 is a handle for raising the position of the loudspeaker.

In addition, in order to increase the mobility of the box body 2, a pair of left and right wheels 6 are attached to the bottom surface of the front part of the box body 2 via folding support legs 6a. 6b is a shaft that rotatably connects the box body 2 and the supporting leg 6a. The wheel 6 cooperates with a foldable stand leg 7 provided on the rear surface to hold the box body 2 at a predetermined angle, and the stand leg 7 itself is also foldable via a pin 7a. ing. FIG. 3 shows these wheels 6
And the stand leg 7 are bent in the direction of each other so that the box 2
It shows the state of being housed inside. 8 is a box body 2 when the wheel 6 and the stand leg 7 are unexpectedly used while the loudspeaker 1 is in use.
Although it is a locking tool that locks once so that it does not move inside, a detailed description thereof will be omitted because its structure is not particularly important.

An antenna 5 and a hand push handle 9 are provided on the upper surface of the box body 2 so as to be slidable in the axial direction so that the antenna 5 and the hand push handle 9 can be retracted into the box body 2, and can be slid out when used. The hand push handle 9 is formed in a gate shape having two legs, and the legs are arranged so as to sandwich the conical loudspeaker 3 extending from the entire surface of the box body 2 to the rear surface.

In FIG. 1, 11 is a wireless handheld microphone, 12 is a tie-pin type wireless microphone, and 12a is a power source section thereof.

Therefore, the mobile loudspeaker 1 of this embodiment has at least the box 2
Pull out the antenna 5 provided on the upper surface of the four legs 2a, 2a
It can be used by placing it on the floor. Further, the movement is performed by pulling out the hand push handle 9 provided on the upper surface of the box body 2 and the wheel 6 provided on the bottom surface. In order to hold the loudspeaker 1 with the wheels 6 pulled out, the stand legs 7 are pulled out at the same time.
Then, when the loudspeaker 1 is stored in the trunk or storage of the automobile, all the protrusions that can be sunk and retracted are retracted into the box 2.

[Effect of device]

In the mobile loudspeaker 1 according to the present invention, a substantially conical loudspeaker 3 is opened on the front surface of the box body 2, and a large space surrounding the cone of the loudspeaker 3 is formed on the back surface other than the front surface. Therefore, if the center of the rear part is left on the upper surface, the antenna 5 and the hand-pushing handle 9 can be provided so as to be able to extend and retract from side to side. Further, if the legs of the wheel 6 and the stand leg 7 are separated left and right while leaving the central portion also on the bottom face, it can be similarly provided so as to be retractable from the bottom face. Thus, the practical effect that the mobile loudspeaker 1 can be moved or fixed quickly can be obtained.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a rear view, FIG. 2 is a side view, and FIG. 3 is a side view corresponding to FIG. 2 showing another embodiment. 2 ... Box, 3 ... Loudspeaker, 4 ... Receiver, 5
…… Antenna, 6 …… A pair of left and right wheels, 7 …… Stand legs,

Claims (1)

[Scope of utility model registration request] 1. A wheel 6 which can be bent rearward is provided on a front bottom surface of a box body 2 in which a loudspeaker 3 is opened on the front surface, and a flat stand leg 7 is bent forward on the rear bottom surface. The antenna 5 and the hand-pushing handle 9 are provided on the upper surface of the box body 2, and the hand-pushing handle 9 is attached so as to be retractable by the legs arranged on the left and right with the cone of the loudspeaker 3 interposed therebetween, while the antenna 5 is provided. Is a movable loudspeaker structure which is provided on the rear side of the cone of the loudspeaker 3 so as to be retractable.