JPS6348154Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a portable audio device in which a speaker box can be attached to and detached from a main body consisting of a radio tuner, a cassette deck, etc. Conventionally, as shown in Japanese Utility Model Application Publication No. 58-114504, when a speaker box is attached to the side surface of a main body via an engaging element, output and input terminal boards provided on each mounting surface facing the main body and the speaker box. The technology to connect these electrically was created. However, since the engaging elements and electrical connection elements of the main body and the speaker box are constructed separately, the structure is complicated and the cost is high, and there is no locking means for the engaging elements, so the handle of the main body When carrying the device through a device, or if the surface on which it is placed is not flat, the speaker box and the main body may be misaligned and the sound cannot be produced properly. There was an inconvenience that the speaker box would fall off and be damaged.

Furthermore, as shown in Japanese Utility Model Application Publication No. 57-8782, the engaging element for attaching the speaker box to the side surface of the main body can be disengaged only when a handle rotatably provided on the main body is laid down horizontally. However, this also has the problem that the locking action is not performed when the handle is laid down horizontally, and the same inconvenience as above occurs when the carrying surface is not flat.

However, the present invention includes a main body consisting of a radio tuner, a cassette deck, etc., a speaker box detachably provided on the side surface of the main body via an engagement mechanism,
In the audio device having a portable handle rotatably attached to the main body, the male engaging element of the engaging mechanism provided on the speaker box is formed of a conductive material, and the female engaging element of the engaging mechanism formed on the main body is formed of a conductive material. providing an electrically conductive thin plate within the engagement element that contacts the male engagement element;
Further, a pin is formed to protrude eccentrically on the outer surface of the pivot portion of the handle, and a frame is provided which engages with the pin and prevents the speaker box from moving in the removal direction when the handle is laid down horizontally and erected vertically. , a gap is provided between each frame for the pin to pass through when the handle is tilted, and the engagement mechanism between the main body and the speaker box can electrically connect them, and a special It is possible to simplify the structure and reduce costs by eliminating the need for an electrical connection mechanism, and when the handle of the main body is laid down horizontally and erected vertically,
In other words, the engaging mechanism can be locked during transportation and use, and the sound can be produced properly in these two conditions, and the speaker box can be prevented from falling off and being damaged. By configuring the engagement mechanism to be disengageable only when the handle is tilted, which requires a special operation, the locking state of the engagement mechanism can be reliably maintained during carrying and use, making it convenient for portable use. It has been designed so that it can be handled easily.

An embodiment of the present invention will be described below based on the drawings.

As shown in FIG. 1, a main body 1 consisting of a radio tuner and a cassette deck has speaker boxes 3, 3 removably installed on both sides thereof, and a portable handle 6 that rotates upwards is pivoted on both sides. Arrived at 7. Main unit 1 and speaker box 3,3
The two are engaged through an engagement mechanism 2 formed on both joint surfaces as shown in FIGS. 2a and 2b. That is, while a male engaging element 4 having a head 12 and a neck 13 is provided on the side surface of the speaker box 3,
On the side surface of the main body 1, there is a female fitting consisting of a hole 14 having a diameter that allows the head 12 to be inserted therein, and an elongated hole 15 that is continuous with the hole 14 and is smaller in diameter than the head 12 and into which the neck 13 can be inserted. A mating element 5 is formed and has a known hook-type engaging structure. The male engaging element 4 of the speaker box 3 is electrically conductive and is screwed onto the side surface of the speaker box 3, and fixed by screwing a nut 18 to the threaded portion 16 together with a terminal 17 for connecting a lead wire to the speaker. are doing. On the other hand, the female engaging element 5 of the main body 1 forms a conductive elastic thin plate 19 inside the holes 14 and 15. The thin plate 1
9 is connected to the tuner and the cassette deck via lead wires, while the male engaging element 4 presses the head 12 against the inner surface of the main body 1 by elastic force when the neck 13 is located at the lowest end of the elongated hole 15. At the same time, the contact pressure between the thin plate 19 and the head 12 is increased. Further, the thin plate 19 has a flexible portion 21 formed on the back of a synthetic resin frame 20 formed on the inner surface of the main body 1, and this flexible portion 21 is located on the back surface of the thin plate 19. By preventing the head 12 from being pushed in excessively and protecting the elasticity of the thin plate 19, the contact pressure between the thin plate 19 and the head 12 will not decrease over long-term use. I'm doing it like that.

Furthermore, as shown in FIGS. 5 to 7, the main body 1
The handle 6, which is pivotally mounted 7 on both sides of the handle 6, has a protruding pin 8 formed on the eccentric outer surface of the pivoted portion.

On the other hand, a frame 9 is provided on the side surface of the speaker box 3 to abut against the pin 8 and prevent the speaker box 3 from coming off in the removal direction (upward) when the handle 6 is in the folded state as shown in FIG. , when the handle 6 is in the upright state as shown in FIG.
A frame 10 is provided which abuts against the speaker box 3 and prevents it from coming off in the removal direction (upward). Further, when the handle 6 is tilted at an angle of, for example, 45 degrees as shown in FIG. 7, the speaker box can be freely removed in the removal direction (upward) corresponding to the gap 11 between the frames 9 and 10. Therefore, when the handle 6 is folded down and placed on a shelf or the like, or when the handle 6 is placed upright and carried, the engagement mechanism 2 is prevented from disengaging, for example, by tilting it at a 45 degree angle. It can be removed only in certain positions.

An audio device comprising a main body 1 consisting of a radio tuner, a cassette deck, etc., a speaker box 3 detachably provided on the side of the main body 1 via an engagement mechanism 2, and a portable handle 6 rotatably attached to the main body 1. In this method, the male engaging element 4 of the engaging mechanism 2 provided on the speaker box 3 is formed of a conductive material, and the male engaging element 4 is provided in the female engaging element 5 of the engaging mechanism 2 formed on the main body 1. A conductive thin plate 19 is provided for contact, and a pin 8 is provided on the outer surface of the pivot joint 7 of the handle 6.
frames 9 and 10 that are eccentrically formed to protrude and engage with pins 8 to prevent movement of the speaker box 3 in the removal direction when the handle 6 is laid down horizontally and erected vertically; Since a gap 11 is provided to allow the pin 8 to pass between the frames 9 and 10 when the speaker box 6 is tilted, the engagement mechanism 2 between the main body 1 and the speaker box 3 electrically connects them. This makes it possible to simplify the structure and reduce costs by eliminating the need for a special electrical connection mechanism.Furthermore, when the handle 6 of the main body 1 is laid down horizontally and erected vertically, it is easy to carry and During use, the engagement mechanism 2 can be locked, and the sound can be produced properly in these two conditions, and the speaker box 3 can be prevented from falling off and being damaged. By configuring the engagement mechanism 2 to be disengageable only when the handle 6 is tilted to be operated, it is possible to reliably maintain the lock state of the engagement mechanism 2 during carrying and use. This has practical effects such as being able to be conveniently handled as a standard.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, Fig. 1 is a front view showing the state where speaker boxes are attached to both sides of a main body consisting of a radio tuner and a cassette deck, Fig. 2 shows the mounting portion of the speaker box and the main body, Fig. a is a side view of the speaker box, Fig. b is a schematic explanatory diagram of the engagement mechanism showing the side view of the main body, Fig. 3 is an enlarged cross-sectional view showing the details of the engagement mechanism in the non-attached state, Fig. 4 is an explanatory diagram showing the details of the engagement mechanism in the attached state, Figs. 5 to 7 are explanatory diagrams showing the engagement lock between the main body and the speaker box related to the pivotal attachment part of the handle of the main body. 1...Main body, 2...Engagement mechanism, 3...Speaker box, 6...Portable handle, 8...Projecting pin, 9, 10...
Frame, 11...gap.

Claims (1)

[Scope of utility model registration request] An acoustic device comprising a main body 1 consisting of a radio tuner, a cassette deck, etc., a speaker box 3 detachably provided on the side surface of the main body 1 via an engagement mechanism 2, and a portable handle 6 rotatably attached to the main body 1. In the device, the male engaging element 4 of the engaging mechanism 2 provided on the speaker box 3 is formed of a conductive material, and the male engaging element 4 is formed in the female engaging element 5 of the engaging mechanism 2 formed on the main body 1. A conductive thin plate 19 is provided to be brought into contact with the handle 6, and a pin 8 is eccentrically formed to protrude from the outer surface of the pivoting portion 7 of the handle 6.
Pin 8 when laid down horizontally and erected vertically
frames 9 and 10 that engage with the speaker box 3 to prevent the speaker box 3 from moving in the removal direction, and a gap 11 that allows the pin 8 to pass between the frames 9 and 10 when the handle 6 is tilted. Audio equipment characterized by: