JPH0125018Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is a vehicle-mounted speaker, more specifically, two back-closed horn type speakers.
The present invention relates to a vehicle-mounted speaker that is integrally formed horizontally so that ports are adjacent to each other in the center, and which is particularly convenient for mounting on a hatchback-type automobile or the like.

Conventionally, a large number of vehicle-mounted speakers have been provided. Most of these vehicle-mounted speakers are of the so-called separate type, and two speakers are required for stereo reproduction.

In a normal four-door car,
Many were used in which the enclosure was placed on the trunk side and only the woofer was formed to protrude into the vehicle. However, such conventional speakers do not have trunk room,
It was unsuitable for so-called hatchback vehicles. In other words, since there is no trunk room, not only is it difficult to find a place to put the enclosure, but even if the speakers themselves were placed on both sides of the rear of the vehicle,
The space between the speakers was a dead space that could not be used for loading luggage, and the sound quality was also unsatisfactory.

In other words, if we take a hatchback vehicle as an example,
Not only did the gap between the two speakers become unusable as a dead space, but it also made it impossible to install large speakers, making it impossible to install speakers that would provide full enjoyment of lively sound quality. Furthermore, there were many young people driving hatchbacks, and there were no speakers that could satisfy the musical tastes of these young people.

Therefore, the object of the present invention is to provide a speaker that is not only easy to install in a vehicle, particularly suitable for installation in a hatchback vehicle, but also has a sufficiently satisfactory sound quality.

In order to achieve the above object, the present invention is designed to be housed in the rear space of a hatchback vehicle, and has two closed-ended horn-shaped speakers that are installed horizontally and integrated into one body, with ports adjacent to each other in the center. In addition, the left and right sides of the back are cut out to form sloped surfaces so that the left and right depths become narrow, and the center of the back is cut out to form a relief part for the lock mechanism.

An embodiment of the present invention will be described below along with illustrated examples.

Bottom plate 1, left and right side plates 2, front plate 3, back plate 4, top plate 5
The enclosure 6 is formed in a horizontally elongated shape, and two woofers 7 are attached to the left and right sides of the front plate 3 in a distributed manner. The inside of this enclosure 6 is divided into left and right parts by a partition plate 8 provided at the center in the left and right direction, and detours are provided on the left and right sides of this partition plate 8 with a slight gap 9 in the front and back direction. A plurality of plates 10 are arranged, and the overall shape has a shape in which two back-loaded horn speakers are connected laterally.

Furthermore, inside the detour plate 10 closest to the woofer 7 and the enclosure 6 from the detour plate 10 to the woofer 7 side, there is a sound absorbing material 1 made of glass wool or the like.
1 is attached.

The back plate 4 has sloped surfaces 12 formed by cutting out the left and right sides of the back plate 4 so that the left and right depths become narrow. The center of the back plate 4 is cut out as a relief part 13 for a door lock mechanism used in a hatchback type automobile.

The openings provided between the partition plate 8 and the detour plates 10 on the left and right sides of the partition plate are ports 14, respectively. Also, this port 14 and woofer 7 are
Net 15 is placed on the front of it.

Regarding the size of the speakers used in the experiment, the woofer 7 has a large diameter of 16 cm, and the entire enclosure 6 has a diameter of 10 cm.
It has a volume of about a liter. Furthermore, both ports 14 are each formed to have an opening area of 30 to 40 square centimeters. In addition, in consideration of the heat inside the vehicle, the enclosure 6 itself is entirely made of plywood 16 with low thermal conductivity, and a urethane sheet 17 with strong heat resistance is wrapped around the circumferential surface of the plywood 16. It is further formed by covering it with foamed vinyl leather 18.

In the present invention, two back-closed horn speakers are integrally formed horizontally so that the ports 14 are adjacent to each other in the center.
It has a larger volume than conventional vehicle-mounted speakers, and can particularly reproduce bass frequencies clearly. Furthermore, the overall volume is not so large compared to, for example, two speakers installed side by side. Furthermore, even with conventional speaker systems that use two horizontally mounted speakers using a small-volume enclosure 6, considering the fact that the space between the speakers is a dead space, it takes up less space in the vehicle. There is no significant increase in the occupied volume.

Furthermore, in the present invention, the left and right sides of the back are notched so that the left and right depths become narrower to form an inclined surface 12, and the center of the back is notched and a relief part 13 for a locking mechanism etc. is formed therein, so that the hatchback vehicle It is especially suitable for storage in the rear space of a car. That is, in general, the rear space of a hatchback vehicle has a curved planar shape, so the left and right sides of the back are cut out to form sloped surfaces 12 to match the curved surface, so that the rear space matches the rear of the back space. As a result, the rear space is not particularly narrow. Furthermore, the back door of a hatchback vehicle is generally provided with a lock mechanism at its center, but in the present invention, the center of the back is cut out to form a relief part 13, so there is no need to modify the lock mechanism at all.

Furthermore, in the embodiment, the area of the port 14 of the enclosure is smaller than the port area of a normally used back-closed horn type speaker; In this case, making the port area as wide as a normal speaker is
This is not desirable in terms of adequate reproduction of bass frequencies. This point has been confirmed through many years of experiments by the applicant. Furthermore, in the embodiment, the port 14 is covered with a net 15, and this net 15 provides musical characteristics that are particularly excellent in the bass range.

As described above, the present invention is a speaker that is not only easy to install in a vehicle, especially a hatchback vehicle, but also occupies less space in the rear space of the vehicle, and furthermore, provides satisfactory sound quality.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a sectional view taken along the line -- in FIG. 2. 1...Bottom plate, 2...Side plate, 3...Front plate, 4...
Back plate, 5...Top plate, 6...Enclosure, 7
...Woofer, 8...Partition plate, 9...Gap, 1
0... Detour plate, 11... Sound absorbing material, 12... Inclined surface, 13... Relief part, 14... Port, 15...
Net, 16... plywood, 17... urethane sheet, 18... vinyl leather.

Claims (1)

[Scope of utility model registration request] This is a device that is stored in the rear space of a hatchback vehicle, and has two closed-ended horn-shaped speakers placed horizontally in one piece with ports adjacent to each other in the center. A vehicle-mounted speaker characterized in that a notch is cut out to form an inclined surface, and the center of the back is cut out to form a relief part for a locking mechanism.