# US 9,517,740 B2 · Sound output device for vehicle

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- Number: US 9,517,740 B2
- Document ID: US9517740B2
- Status: Granted
- Kind: B2
- Application number: 14/781,368
- Filed: 2013-04-01
- Published: 2016-02-11
- Granted: 2016-12-13
- Earliest claimed: 2013-04-01
- Assignees: Pioneer Corporation; Tohoku Pioneer Corporation
- Applicants: Pioneer Corporation; Tohoku Pioneer Corporation
- Inventors: Takeshi Okuyama; Yutaka Moriyama; Tomokazu Nitta
- Web page: https://patentgrep.com/patent/US9517740B2

## CPC

- B60R 19/48: combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
- B60Q 5/00: Arrangement or adaptation of acoustic signal devices
- B60R 11/0217: {for loud-speakers}
- B60R 2011/004: {outside the vehicle}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL

## Abstract

A loudspeaker device is installed in a space between a bumper reinforcement for reinforcing a bumper of a vehicle and a bumper absorber attached to a front side of the bumper reinforcement. An approach notification sound output from a front side of the loudspeaker device is radiated outside through a first opening provided on a driver's seat side of the bumper absorber. An approach notification sound output from a rear side of the loudspeaker device passes through a sound path between the bumper reinforcement and the bumper absorber and is then radiated outside through a second opening provided on a passenger seat side of the bumper absorber.

## Claims

### Claim 1

A sound output device for vehicles, comprising:
a reinforcing member for reinforcing a bumper of a vehicle;
a shock absorbing member attached to a front side of the reinforcing member, and
a loudspeaker device installed in between the reinforcing member and the shock absorbing member,
wherein a first opening and a second opening are provided to a front side of the shock absorbing member,
wherein the loudspeaker device is installed so that a front side of the loudspeaker device faces the first opening,
wherein a sound radiated from the front side of the loudspeaker device is radiated through the first opening, and
wherein a sound radiated from a rear side of the loudspeaker device is radiated through the second opening via a space between the reinforcing member and the shock absorbing member.

### Claim 2 (depends on 1)

The sound output device for vehicles according to claim 1, wherein the loudspeaker device is fixed to the reinforcing member.

### Claim 3 (depends on 1)

The sound output device for vehicles according to claim 1, wherein the loudspeaker device is fixed to the shock absorbing member.

### Claim 4 (depends on 1)

The sound output device for vehicles according to claim 1, wherein the first opening is provided near one longitudinal end of the shock absorbing member, and the second opening is provided near another longitudinal end of the shock absorbing member.

### Claim 5 (depends on 1)

The sound output device for vehicles according to claim 1, further comprising a side wall closing openings at both longitudinal ends of the space.

### Claim 6 (depends on 1)

The sound output device for vehicles according to claim 1, wherein a taper whose opening area gradually increases in the forward direction is provided on the first opening or the second opening.