JPH03104747A - Power widow device with variable-direction speaker - Google Patents

Abstract

PURPOSE:To avoid feeling that the sound of a speaker is reduced even at the time of opening a window by driving the motor of a speaker driving means in synchronization with opening of a power window to turn the speaker toward a crew. CONSTITUTION:At the time of opening a window, a motor 3 is driven by operating a switch 14, whereby a pinion gear 5 is rotated through a worm gear 4 to open the window. At this time, a motor 9 of a speaker driving means is driven by a control portion 13 in response to a signal synchronized with the drive of the motor 3, so that a speaker 7 is rotated with a housing 8 through gears 11, 12. Thus, the speaker 7 is turned to the ears of a crew so that the sound from the speaker 7 is transmitted to the ears of the crew with the best directional characteristics. Accordingly, the crew will not feel that the sound volume is reduced by opening and closing the window.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a power window device that includes a direction-variable speaker on a part of the cover of the power window device provided on the inside surface of an automobile door. ．． [Prior Art] Fig. 3 is a sectional view of a conventional vehicle door with a speaker disclosed in, for example, Japanese Utility Model Application Publication No. 62-77048. , 31 indicates a window, 32 is an inner plate of the door 30, 33 is a door pocket attached to this inner plate 32, 34 is a speaker attached to a portion of the inner plate 32 located inside the door pocket 33, and 35 is a speaker attached to a portion of the inner plate 32 located inside the door pocket 33. The sound from this speaker 34 is transmitted to the passenger 3.
This is a reflector for reflecting the light in the direction of the ear 37 of No.6. According to the above structure, the sound from the speaker 34 is reflected by the reflection plate 35 in the direction of the ear 37 of the occupant 36 as shown by the arrow 38, so that the sound can be effectively heard. C invention tries to solve the problem! Title i) Conventional vehicle doors with speakers are arranged as described above, so when listening to the sound from the speaker 34 while the car is running and the window 3l is closed,
Noises such as engine noise, tire road noise, and wind noise are blocked by the window, so they are hardly noticeable and the sound from the speaker 34 is not obstructed in any way. However, if the window 31 is opened even temporarily, the sound from the speaker 34 will be affected by the external noise entering the vehicle.
As a result, the sound from the speakers seems to be reduced, making it difficult to listen to the sound. This invention was made to solve the above-mentioned problems, and provides a directionally variable speaker that does not cause the sound from the speaker to become small due to noise entering from the outside even when the window is opened. The purpose is to obtain a power window device with a built-in power window. [Means for Solving the Problems] A power window device with a direction-variable speaker according to the present invention includes a window drive means that includes a motor and a speed reduction mechanism for automatically opening and closing the window in a cover provided on the inner side panel of the door of an automobile. In the housed power window device, a speaker is provided within the cover so that its direction can be changed, a speaker drive means consisting of a motor and a deceleration mechanism for changing the direction of the speaker, and a speaker driving means that is interlocked with the opening/closing operation of the window. The present invention is characterized by comprising a control means for varying the direction of the L speaker. (Function) In this invention, when the window is automatically opened by the window drive means, the speaker is rotated by the speaker drive means and directed toward the passenger, so that when the window is opened, the external Even if noise enters from the speaker, the sound from the speaker will not be heard. [Embodiment] An embodiment of the present invention will be explained below with reference to the drawings.First
The figure is an internal configuration diagram of a power window device with a variable direction speaker according to an embodiment of the present invention, and FIG. 2 is a plan view of the same power window device. In the figure, 1 is the inner plate of the door, 2 is the cover of the power window device attached to this inner plate 1, 3 is the motor of the window drive means, and the worm gear 4 of the output wheel of this motor 3 is connected to a pinion gear that serves as a reduction mechanism. 5 are engaged. 6 is a handle shaft connected to the center of the binion gear 5 for opening and closing the window.
Reference numeral 7 denotes a speaker electrically connected to an in-vehicle audio device, etc. (not shown), and a dome-shaped housing 8 to which the conospeaker 7 is attached engages a groove 8a on the outer periphery of the bottom with the cover. Together with the housing 8, the speaker 7 is configured to be freely rotatable in the horizontal direction. Reference numeral 9 denotes a motor of the speed drive means, and the pinion gear 10 of the output shaft of this motor 9 meshes with a spur gear l1 serving as a reduction mechanism, and its small gear 11a to spur gear 12, respectively, and the shaft of this spur gear 12 has the above-mentioned The center of rotation of the housing 8 is directly connected. 13 is a control unit for driving the motor 9 of the speaker drive means in synchronization with the motor 3 of the window drive means; This is a switch to change the reverse direction. Note that ]5 indicates the passenger, and 16 indicates the passenger's ears. Next, we will explain the operation. 1 and 2 show a state in which the car is running with the window (not shown) closed, and at this time, the speaker 7 is facing in the direction of arrow a in FIG. In the above-mentioned state, when the switch 14 is operated to drive the motor 3 for reasons such as ventilation inside the car, the pinion gear 5 is rotated via the worm gear 4 and the window is opened. At this time, a signal synchronized with the drive of the motor 3 causes the control unit 13 to drive the motor 9 of the speaker drive means, and rotates the speaker 7 together with the housing 8 via the spur gears 11 and 12. Direction of arrow b, i.e. crew member 15
is turned in the direction of the ear 16. Therefore, when the window is open, the sound from the speaker 7 is in the direction of arrow b, and reaches the passenger's ears in the direction with the best directivity. Therefore, when the window is closed, the sound from the speaker 7 is in the direction of the arrow A difference in sound pressure occurs at the position of the passenger's ear compared to when the head is facing in direction a. If you set this sound pressure difference to be equal to the sound pressure difference of the noise entering from the outside when the window is opened and closed, you will not feel that the volume of the speaker decreases due to the opening and closing of the window. [Effects of the Invention] As explained above, according to the present invention, the motor of the speaker driving means is driven in synchronization with the opening of the window, and
Since the power is diverted toward the passenger, when the window is opened during audio playback while the vehicle is running, the sound from the speakers will be reduced even if noise enters from the outside. It can be resolved.

[Brief explanation of drawings]

Fig. 1 is a front view of a power window device with variable direction speaker power according to an embodiment of the present invention, Fig. 2 is a plan view thereof, and Fig. 3 is a sectional view of a conventional vehicle door with a speaker. be. 1...Inner plate, 2...Cover 3...Motor, 4
... Worm gear, 5... Pinion gear, 6...
Handle shaft, 7... Speaker, 8... Housing,
9...Motor, 11.12...Spur gear, l3...
Control unit, l4... switch.

Claims (1)

[Claims] A power window device in which a window driving means consisting of a motor and a deceleration mechanism for automatically opening and closing a window is housed in a cover provided on the inner side panel of a door of an automobile, and a speaker provided in the cover so as to be able to change its direction; A power source with a variable direction speaker, comprising: a speaker drive means comprising a motor and a speed reduction mechanism for changing the direction of the speaker; and a control means for varying the direction of the speaker in conjunction with the opening/closing operation of the window. Window device.