JPH1059035A - Seat vibration device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent sleeping drive by fixing a seat to a seat supporting part installed in a floor, arranging a vibration means in a seating part of the seat, and vibrating the seat with the vibration means. SOLUTION: When a diver feels sleepy, pushes a START switch in a control box to operate a DC motor 7. The DC motor 7 is driven, a rotating shaft 7a is rotated by the driving of the DC motor 7, a rotating axis body 20 linked to the rotating shaft, 7a is rotated, both imbalance weights 16 fixed to the rotating axis body 20 are rotated to generate vibration. The vibration is transmitted to a seating part 2 of the seat through both supporting bodies 17 and a supporting part 4. The seating part 2 is vibrated together with the whole seat, the driver on the seat shakes off sleepiness to prevent the sleeping drive.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat vibration device used for a driver's seat or the like of an automobile for preventing sleepless driving.

[0002]

2. Description of the Related Art Various devices have been proposed to prevent the driver of a car or the like from sleeping. These devices usually include sensing means for sensing that the driver is making a nap, and wake-up means for receiving the sneezing detection signal from the sensing means to wake the driver. For example, as the sensing means, if the driver starts to sleep, the driver will tilt the head forward, so the number of times the head is tilted per unit time, the time during which the head is tilted, etc. There is something that senses and sends this to the wake-up means as a wake-up detection signal, and the wake-up means operates when the above-mentioned wake-up detection signal is sent,
Some wake up with a loud noise at the driver's ear. Therefore, according to this device, when the driver makes a sneeze, it senses that the driver is making a sneeze due to the inclination of the head, thereby activating the wake-up means to wake the driver. it can.

[0003]

However, since the above-mentioned device wakes up after the driver has sowed, when the driver is sowed to the extent that it cannot be sensed by the sensing means, Sleepiness can cause loss of concentration and an accident.

The present invention has been made in view of such circumstances, and has as its object to provide a seat vibration device capable of effectively preventing sleepless driving.

[0005]

In order to achieve the above object, a seat vibration device according to the present invention has a seat fixed to a seat support provided on a floor, and a vibration means is arranged in a seating portion of the seat. The seat is vibrated by the vibration of the vibration means.

That is, the inventor of the present invention has conducted a series of studies on a device that effectively prevents the driver from sneezing, and as a result, the driver senses the sneezing after the driver begins to sneeze. Recalling that awakening the driver does not completely eliminate the accident caused by sleepless driving, and further researched, for example, when the driver felt sleepy, the driver himself pressed the switch, etc. It has been found that if the driver is caused to be unable to sleep at all by appropriately vibrating, the sleepless driving is completely eliminated and the accident due to the sleepless driving can be completely eliminated, and the present invention has been achieved.

[0007]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In this embodiment, the seat 2 of the seat 1 (see FIG. 2) is
(See FIG. 3). The seat slide mechanism 25 includes a lower slide rail (seat support portion) 26 fixed to a floor surface 30 a of the automobile 30 by bolts (not shown), and a bolt (not shown) on the lower surface of the seating portion 2.
It is provided with a stopped upper slide rail 27, an operation lever (not shown), and the like. In FIG. 2, reference numeral 8 denotes a backrest of the seat 1, and 9 denotes a headrest of the seat 1.

The seating portion 2 includes a seat cushion portion 3 made of a urethane pad 5, a spring 6 (see FIG. 8) and the like.
And a dish-shaped support portion 4 made of a rigid metal body. The seat slide mechanism 2 is mounted on a bottom plate 4 a of the support portion 4.
The upper slide rail 27 of 5 is bolted (not shown). A flange 4b is formed on an outer peripheral portion of an upper end surface of the support portion 4, and a lower end of the seat cushion portion 3 is placed and fixed on an upper surface of the flange 4b.
The seat cushion 3 is supported by the flange 4b. The support portion 4 has a rectangular elongated hole 11 formed substantially in the center thereof.
The left and right sides of the mounting plate 12 are bent upward, and the mounting plate 12 (the U-shaped phase of the iron plate mounting plate 12) that is bent and formed in a U-shape as shown in FIGS. The lower ends of both vertical pieces 12a facing each other) are fixed with bolts 13. Then, the U-shaped horizontal piece 12 of the mounting plate 12 is formed.
An L-shaped fixing plate 14 provided on both right and left sides of the DC motor 7 is fixed to the DC motor 7 by a bolt 15. DC motor 7
Has the tip of the rotating shaft 7a protruding from the outer wall,
The tip of the protruding rotary shaft 7 a is connected to the rotary shaft 20 via a coupling (connecting member) 19.

The rotary shaft 20 is rotatably supported by a pair of right and left support members 17 arranged at a predetermined interval. Through holes are formed in the support members 17 so as to face each other, and a metal bearing 21 is fitted in the through holes. The rotating shaft body 20 is rotatably supported by the two metal bearings 21. Further, two pairs of unbalanced weights 16 are detachably fixed to the rotating shaft body 20 between the support members 17. Both of these unbalance weights 16 are formed in a plate-like body, and as shown in FIG. 7, a substantially 2/3 arc-shaped portion 16a formed concentrically with a rotating shaft 7a of the DC motor 7, And a rectangular weight 16b protruding from the flat surface of the 2/3 arc-shaped portion 16a.
Then, the rotating shaft 7a and the rotating shaft body 20 of the DC motor 7 are horizontally and horizontally with respect to the seat 1 (FIG. 2).
In the direction orthogonal to the traveling direction of the automobile 30 shown in FIG.
I'm facing. In the figure, reference numeral 18 denotes a bolt, and both support members 17 are attached to the U-shaped horizontal piece 12 b of the attachment plate 12.

The above-mentioned DC motor 7 is used for the automobile 3 shown in FIG.
0 is electrically connected to a battery 31 provided at the front of the vehicle. In addition, a control box 29 (see FIG.
Is provided in the control box 29 to start (ON) the DC motor 7.
TART switch (not shown), DC motor 7
A STOP switch (not shown) for performing P (OFF), a strength adjustment switch (not shown) for adjusting the strength of vibration, and the like are provided. This strength adjustment switch is a DC motor 7
By setting the number of revolutions to 1200 rpm, vibration with a vibration force of 37 kgf, an amplitude of 5 mm, and a frequency of 20 Hz (vibration that swings the seat 1 in the traveling direction of the vehicle 30) is applied to the seat 1 with a maximum seat load of 100 kg. Weak position "
By setting the rotation speed to 1700 rpm, a "middle position" in which vibration of 53.3 kgf, an amplitude of 7 mm and a frequency of 28 Hz is applied to the seat 1 at a maximum load of 100 kg of the seat and the rotation speed is set to 2500 rpm. As a result, the vibration force is 83.3 kg at the maximum seat load of 100 kg.
f, an amplitude of 10 mm and a frequency of 42 Hz can be switched to the “strong position” where the vibration is applied to the seat 1.
Then, at each of the “weak position”, “middle position”, and “strong position”, a vibration cycle of vibrating for 20 seconds and then resting for 10 seconds is repeated several times (three times in this embodiment). In FIG. 3, reference numeral 32 denotes an instrument panel to which meters are attached, and reference numeral 33 denotes a handle.

In the above embodiment, when the driver feels a little drowsy, he presses the START switch of the control box 29 to turn on the DC motor 7. This allows
The DC motor 7 is driven, and by the driving of the DC motor 7, the rotating shaft 7a is rotated, the rotating shaft body 20 connected thereto is rotated, and the unbalanced weights 16 attached thereto are also rotated to vibrate ( As described above, this vibration is a periodic vibration in which the vibration for 20 seconds and the pause for 10 seconds are alternately repeated three times). And
This vibration is transmitted to the seat 1 via the support members 17 and the support portions 4.
Is transmitted to the seating portion 2. As a result, the seating portion 2 vibrates and the entire seat 1 also vibrates, and the driver sitting on the seat 1 becomes drowsy due to the vibration of the seat 1 and does not sneeze.

As described above, according to the above embodiment, the vibration generated by the unbalanced weights 16 of the rotating shaft 20 connected to the rotating shaft 7a of the DC motor 7 is transmitted to the seat 1 and Since the vehicle vibrates, the driver does not sneeze, and an accident due to sneaking can be completely eliminated. In addition, because the seat itself vibrates, no matter what position the driver is in, even if the driver is drowsy and starts to shake his head, the vibration is always driven as long as he is sitting in the seat To be communicated to others. For this reason, it is possible to effectively prevent sleepless driving. Moreover, since the rotating shaft 7a and the rotating shaft body 20 of the DC motor 7 face the seat 1 in the left-right direction (in the direction orthogonal to the traveling direction of the automobile 30), the seat 1 is vibrated up and down. In addition, a vibration (vibration in the front-rear direction) that oscillates in the direction along the traveling direction of the vehicle can be applied to the vertical vibration, and it is possible to effectively prevent the sneaking operation. Further, by adjusting the length of the rotating shaft body 20 and the mounting position of the unbalanced weight 16, the position where the vibration is generated can be adjusted. In addition, since the DC motor 7 and the unbalanced weights 16 are housed in the dish-shaped support portion 4, cans and the like falling on the floor surface 30a of the automobile 30 move on the floor surface 30a to be seated. Even if it rolls under the seating portion 1, it is protected by the support portion 4 and does not break.

FIG. 8 is a block diagram showing another embodiment of the present invention. In this embodiment, a DC motor 7 shown in FIG. 4 is housed and fixed in the seat cushion 3 of the seat 2. That is, in a state where the DC motor 7 is disposed in a space below the urethane pad 5 constituting the seat cushion portion 3 and between the springs 6 stretched in this space, the urethane pad 5 Is mounted on a dish-shaped frame 23 that receives the frame. Other parts are the same as those of the above-described embodiment, and the same parts are denoted by the same reference numerals.

According to this embodiment, since the DC motor 7 is accommodated and fixed in the seat cushion 3, it can be easily applied to the vehicle 30 without the support 4 in the embodiment of FIG. can do. In addition, since the DC motor 7 is protected by the seat cushion 3, the DC motor 7 is not damaged by cans or the like falling on the floor 30a of the automobile 30. Further, the same operation and effect as in the embodiment of FIG.

FIG. 9 is a block diagram showing still another embodiment of the present invention. In this embodiment, the DC motor 7 shown in FIG. 4 is attached to the lower end of the seat 2, and a cover 29 made of a rectangular plate, cloth or the like that covers the lower space of the seat 2. Is housed in The mounting position of the DC motor 7 is not at the center of the lower surface of the seating portion 2 but at a position closer to one side in the left-right direction (toward the right in the drawing) and a position closer to the rear (see FIG. (See 10)
Is set. In the figure, reference numerals 28 denote mounting legs extending downward from four corners of the seating portion 2, and
a. Other parts are the same as those of the above-described embodiment, and the same parts are denoted by the same reference numerals.

According to this embodiment, since the DC motor 7 is accommodated and fixed in the cover 29 covering the lower space of the seat 2, the automobile 30 has no extra space in the seat 2. However, the DC motor 7 can be easily attached to the seat portion 2. Moreover, the DC motor 7 is
Is protected by the cans and the like falling on the floor 30a of the vehicle 30. Furthermore, since the DC motor 7 is mounted at the rear position of the seating portion 2 of the seat 1, the DC motor 7 is located almost directly below the buttocks of the driver sitting on the seat 1, and the generated vibration is generated by the buttocks. Is reliably and strongly transmitted to the driver. Thereby, the effect of preventing sleepless driving is further exhibited. Moreover, FIG.
The same operation and effect as those of the embodiment can be achieved.

In each of the above embodiments, the DC motor 7 and the rotary shaft 20 are mounted in a direction perpendicular to the traveling direction of the automobile 30. However, the present invention is not limited to this, and It may be mounted in a direction along the direction. In this case, while the seat 1 is vibrated up and down, a vibration (horizontal vibration) that swings in a direction perpendicular to the traveling direction of the automobile 30 can be given to the up and down vibration. Driving can be effectively prevented. Thus, the DC motor 7 and the rotating shaft 2
0 can be appropriately selected, and the mode of vibration can be selected according to the driver's preference. The magnitude of the vibration is set at a frequency of 11 to 46 Hz at a maximum seat load of 100 kg, preferably at a frequency of 16 to 2 Hz.
It is set to 8 Hz. If the frequency is greater than 46Hz,
There is a problem that the vibration is too strong and hinders driving.
When the frequency is lower than 11 Hz, there is a problem that sleepiness cannot be awakened. Also, experiments have shown that if the frequency is set in the range of 16 to 28 Hz, the driver can be surely awakened with appropriate vibration.

In each of the above embodiments, a START switch is arranged in the control box 29, and when the driver feels a little drowsy, the START switch is pressed to turn on the DC motor 7, but the START
A timer may be provided instead of the T switch. In this case, the DC motor 7 is turned on when the set time of the timer (for example, 10 minutes) has elapsed by pushing the switch of the timer at the time of starting the vehicle or the like.
The operation of the DC motor 7 can be automatically stopped when a predetermined time (for example, 5 minutes) has elapsed after the ON operation. Such a timer is convenient when it is known from a past experience or the like that the user feels drowsy after a predetermined time (for example, about 10 minutes) has elapsed after the vehicle started. When a timer is used, the timer (for example, the time for automatically turning on the DC motor 7) (for example,
It is preferable that a warning sound such as a beeping sound or a large intermittent sound be played from a microphone provided in the control box 29 to inform the driver of the ON operation of the DC motor 7 (about 5 seconds before). Further, a switch for stopping the operation of the DC motor 7 may be provided together with the timer, and the operation of the DC motor 7 may be manually stopped instead of being stopped by the timer. Further, in each of the above embodiments, the START switch for starting the DC motor 7 and the STOP switch for stopping the DC motor 7 are provided separately. However, the present invention is not limited to this.
ON / OFF that can perform both N) and STOP (OFF)
A switch may be provided. Further, in each of the above embodiments, the control box 29 is arranged beside the seat 1;
The present invention is not limited to this, and switches, timers, and the like are arranged on the instrument panel 32 on the front side of the seat 1,
The control unit may be housed inside the instrument panel 32.

The shape of the unbalance weight 16 is not particularly limited, and may be any shape as long as it can be rotated to generate vibration. Further, in the embodiment shown in FIG. 8, the seat 2 is constituted only by the seat cushion 3, but may be constituted by the seat cushion 3 and the support 4 (see FIG. 1). . Further, in each of the above embodiments, the unbalanced weight 16 is attached to the rotating shaft body 20 connected to the rotating shaft 7a of the DC motor 7, but the present invention is not limited to this. It may be attached to.

In the embodiment shown in FIGS. 1 and 8, the seat 1 is attached to the floor 30a of the automobile 30 via the seat slide mechanism 25. However, the present invention is not limited to this.
The seat 1 may be immovably attached to the floor 30a. Further, in the embodiment shown in FIG.
a, but may be fixed to the seat slide mechanism 25 (see FIG. 1). Also, the seat slide mechanism 25 in the embodiment of FIGS. 1 and 8, the mounting leg 28 in the embodiment of FIG. 9, and the seat slide in the modification of FIG. 9 (an example in which the mounting leg 28 is fixed to the seat slide mechanism 25). The mechanism 25 may be mounted and fixed on an air cushion device.

Further, in each of the above-described embodiments, the vibration means including the DC motor 7 and the like is provided on the seat 1 of the automobile 30. However, the present invention is not limited to this. It may be provided in the cockpit seat. As a vibration means, an electromagnet (fixed core around which a coil is wound) is fixed to a free end of one of two opposing pieces of a leaf spring bent in a U-shape, and a movable core is fixed to a free end of the other piece. And an electromagnetic vibrator that imparts vibration to the seat by applying an alternating current to the coil of the electromagnet to swing at least one of the two pieces may be used. The electromagnetic vibrator may not use a movable iron core as long as it generates a vibration by energizing the electromagnet.

[0023]

As described above, according to the seat vibration device of the present invention, the vibration means is provided in the seat portion of the seat, and the vibration generated by the vibration means is transmitted to the seat to vibrate the seat. ing. Therefore, the driver sitting in this seat does not sneeze, and the accident due to sneaking can be completely eliminated. Further, in the present invention, since the seat itself vibrates, regardless of the posture of the driver, and even when the driver is drowsy and starts to shake his head, he is sitting on the seat. As long as the vibration is transmitted to the driver. For this reason, it is possible to effectively prevent sleepless driving. Further, in the present invention, the vibration means includes a motor and an unbalanced weight attached to a rotation shaft of the motor, and the seat is vibrated by vibration generated when the rotation shaft of the motor rotates. In this case, the vibration generated by the rotation of the motor is transmitted to the seat, and the seat vibrates. Moreover,
By selecting the direction of the rotation shaft of the motor, the vibration direction of the seat can be selected. Further, in the present invention, when the seating portion of the seat includes a seat cushion portion and a support portion for supporting the seat cushion portion from below, and the motor is fixed to the support portion, Can be protected by the support portion, and there is an advantage that no extra space is taken around the seat portion. In addition, when the motor is fixed to the seat cushion portion forming the seating portion of the seat, the motor can be protected by the seat cushion portion, and there is an advantage that no extra space is taken around the seating portion. is there. Further, when the rotating shaft protrudes from the outer wall of the motor to the outside and the unbalanced weight is provided at the protruding portion of the rotating shaft, there is an advantage that the unbalanced weight can be easily replaced. Further, when the rotating shaft protrudes outside from the outer wall of the motor, and the protruding end is connected to the rotating shaft via a connecting member, and when the rotating shaft is provided with an unbalanced weight, the rotating shaft is By appropriately selecting the length of the unbalanced weight and the mounting position of the unbalanced weight, it is possible to select the position where the vibration is generated, and there is an advantage that the sneaking operation can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a seat.

FIG. 3 is an explanatory diagram of an automobile.

FIG. 4 is a side view showing a motor and an unbalanced weight.

FIG. 5 is a plan view showing a motor and unbalance weights.

FIG. 6 is a right side view of the motor.

FIG. 7 is a side view of an unbalanced weight.

FIG. 8 is a configuration diagram showing another embodiment of the present invention.

FIG. 9 is a configuration diagram showing still another embodiment of the present invention.

FIG. 10 is a side view showing a mounting position of a DC motor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat 2 Seating part 3 Seat cushion part 4 Support part 7 Motor 7a Rotating shaft 16 Unbalance weight 30a Floor surface

Claims (6)

[Claims] 1. A seat is fixed to a seat support portion provided on a floor surface, vibration means is provided in a seating portion of the seat, and the seat is vibrated by the vibration of the vibration means. Seat vibration device to do. 2. The vibration means comprises a motor and an unbalanced weight attached to a rotation shaft of the motor, wherein the seat is vibrated by vibration generated when the rotation shaft of the motor rotates. 2. The seat vibration device according to claim 1. 3. A seating portion of a seat includes a seat cushion portion and a support portion for supporting the seat cushion portion from below, and a motor is fixed to the support portion.
A seat vibration device as described. 4. The seat vibration device according to claim 2, wherein the seating portion of the seat includes a seat cushion portion, and the motor is fixed to the seat cushion portion. 5. The seat vibration device according to claim 2, wherein the rotating shaft projects outside from the outer wall of the motor, and an unbalanced weight is provided at a portion of the projected rotating shaft. 6. The motor according to claim 2, wherein the rotating shaft projects from the outer wall of the motor to the outside, and the projected end is connected to the rotating shaft via a connecting member, and the rotating shaft is provided with an unbalanced weight. Seat vibration device.