JPH0685135U - Car seat safety equipment - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] A safety device for the driver and passengers that prevents the seat from inertially advancing and automatically retracts. [Composition] Installed on the bottom plate of an automobile, one cylinder 61, one piston rod 62 extending forward, and one rod 621 having a plurality of catch grooves facing upward are attached. Tuck it around the T-shaped clasp at the bottom of the seat,
The seat moves with the piston rod. Equipped with one air compressor with ventilation holes at both front and rear ends of the cylinder, and a few ventilation holes, each ventilation hole communicates with each other when electricity is on, and shuts off when electricity is off A three-pronged valve that is connected to at least one vent and the vent of the cylinder and has another vent to the atmosphere, and a plurality of detectors 71 for detecting a collision and sending a signal to an electric circuit. An electric circuit is installed in one box 70, and each vent hole of the three-pronged valve is made to communicate with each other in response to a signal, and the three-pronged valve is shut off after a certain period of time.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a safety device for an automobile seat, in which a driver's body collides with a steering wheel or the body is pinched due to a collision deformation of a vehicle body when a seat collision is swiftly retracted at the moment of collision of the vehicle. It reduces opportunities, minimizes injuries and enhances vehicle safety.

[0002]

[Prior art]

 As a conventional vehicle seat back-and-forth movement adjusting device, as shown in FIG. 1, there is a slide device 1 for fixing and sliding two rails on a bottom portion of a seat, and a slide device 1 on a bottom portion 10.

[0003]

[Equation 1]

The outer bottom portion 10 and the rail 20 which are combined with the rail 20 and the slide plate 30 that runs on the rail 20 are fixed to the bottom plate of the vehicle, and the wall plate 12 is provided on one of the bottom portions so as to face upward. The slide plate 30 is fixed to the bottom of the seat, and one end of the slide plate 30 is fixed to the connecting plate 40. The connecting plate 40 is connected to the handle 41. The end of the handle is fixed to a hooking metal, and the handle 41 is fitted in the front and rear with the slide plate 30 or removed, and the slide plate 30 (or seat) is moved in the multi-stage of the rail 20 back and forth. With adjustment function. With the seat slide device described above, the seat cannot be retracted back into the car in the event of an accident by simply adjusting the seat position back and forth. To die or die.

[0005]

[Problems to be solved by the device]

 Since the conventional vehicle driving seat movement adjusting device does not have a structure for automatically retracting backward in the event of an accident, it is necessary to improve its drawbacks.

[0006]

[Means for Solving the Problems]

 One air compressor is installed under the operation seat, and one rod with multiple hanging grooves is attached to the tip of the piston rod, and the tip of one T-shaped metal fitting is attached to the bottom of the seat. It adjusts and fits into one of those hanging grooves, which allows the seat and piston rod to move together. There are also multiple sensors installed in the front of the car, these sensors are connected to an electric circuit, and when a shock is detected, a signal is sent to this electric circuit immediately, so that this electric circuit is connected to the air compressor. An air compressor is activated by retracting a connected three-pronged valve to retract the piston rod and its associated seat a distance.

[0007]

【Example】

 Referring to FIG. 2 and FIG. 3, the vehicle seat safety device according to the first embodiment of the present invention has two front and rear slide rails 5 installed on both sides of the seat bottom and the bottom plate, and the seat is mounted on the rail 5. And an air compressor 60 (this embodiment uses an air compressor as an example, but a hydraulic machine having the same effect may be used), and the air compressor is placed on the bottom plate of the seat. An electric circuit box 70 and an air valve 72 are installed to move and operate the seat.

The air compressor 60 is composed of a cylinder body 61 and a piston rod 62. A three-way valve 610 is provided at the rear end of the cylinder 61 and an air port 611 is provided at the front end of the cylinder 61. A piston rod 62 has a grooved rod 621 at its outer end, which is provided with an intake valve 612 and has an air outlet 613 at one end. The grooved rod 621 has a plurality of catching grooves 620. However, these catching grooves 620 mesh with a T-shaped clasp 622 (shown in FIG. 6) fixed to the bottom of the seat, and the seat and the piston rod 62 are connected and move together. . Further, the T-shaped clasp 622 can be selected and engaged with any groove of the catch groove 620, or the seat front-rear position can be manually adjusted. The T-shaped clasp 622 is operated by a side handle (not shown) on the seat side to select or release the catch position of the catch groove 620, and the front and rear positions of the seat can be changed by the operation of the side handle.

The electric circuit box 70 is connected to a sudden stop lever of a car or a plurality of sensors 71 in front of the car so that the electric circuit has a structure as shown in FIG. 4, for example. The sensor 71 therein refers to a magnetic sensor, an optical sensor or the like which is always open or always closed (shown in FIG. 5). When the vehicle collides, the sensor 71 senses an abnormal situation and immediately sends a signal to the electric circuit box 70 to open the ventilation valve 72.

The ventilation valve 72 allows or blocks a fluid (air or liquid) to pass through, and its opening / closing is opened by a pulling action portion inside the electric circuit box 70, and immediately closed when it is turned off. The ventilation valve 72 is provided with two openings 720 and 721, of which the openings 720 communicate with the ventilation holes 613 of the cylinder by a pipe, and the openings 721 communicate with the outside air.

In the second embodiment of the present invention shown in FIG. 8, the ventilation valve 80 has three opening openings 801, 802, 803, and the opening openings 801, 802 therein are air openings at both ends of the cylinder. The other opening 803 communicates with 610 and 611 and communicates with the outside air. The inner diameter of the opening 802 is larger than that of the opening 803. When an accident occurs, fluid flows from the vent 613 of the cylinder 61 through the opening 802 to the front of the cylinder 61, so that the piston rod 62 is swiftly retracted rearward to maintain a small amount of fluid through the opening 803. To be discharged. The structure of each of the other parts is the same as that of the first embodiment. Once a vehicle crashes, the high pressure fluid in the cylinder 61 is discharged. Most of them flow through the opening 802 of the ventilation valve 80 to the front of the cylinder 61, and the piston rod and the seat are quickly moved rearward. Since this retreat speed is fast, the rescue effect is remarkable.

In use, the action is as follows. (1) Before use, fill the high-pressure fluid from the unidirectional valve 612 of the three-pronged valve 610 (for example, inject air with an air pump), and place the piston rod 62 of the air compressor 60 together with the seat (seating the seat). (Adjust to an appropriate position) Push it to the frontmost position. At this time, since the air in the ventilation valve 72 is off, the high pressure fluid in the cylinder does not leak out because the opening 721 is shut off. At this time, the driver fixes the seat at an appropriate position with the side handle of the seat until the T-shaped clasp 622 and the catch groove 620 are engaged with each other (as shown in FIG. 6).

(2) When a collision or an accident occurs while the vehicle is running, a sensor 71 attached to the front of the bumper or the vehicle immediately detects it and transmits a signal to the electric circuit 70 to generate electricity. The circuit 70 exerts its action to immediately open the ventilation valve 72, the two opening ports 720 and 721 communicate with each other, and at that moment, the high pressure fluid in the cylinder 61 passes through the pipe and the ventilation valve 72. It is discharged from the opening 721 of 72. The piston rod 62 then moves the driver's body with the seat to the rear position (as shown in FIG. 7) to avoid bumping the driver's seat with the steering wheel or being caught between the front body. This will reduce the extent of injury and increase the safety of the car.

[0014]

[Effect of device]

 As can be seen from the above description, the present invention has the following effects. (1) In the present invention, when a driver's or passenger's vehicle collision accident occurs, the seat is quickly and automatically retracted to avoid a collision between the body and the steering wheel or being caught in the vehicle body, and the degree of the injury is reduced. Reduce. If the vehicle has an airbag system and the seat safety device of the present invention, the driver's safety is further enhanced.

(2) The main point of the present invention is that it is installed at the bottom of the seat, so it does not affect the original design of the car because it does not require more space for the car. You can leave it as it is, it is easy to operate and very convenient.

[Brief description of drawings]

FIG. 1 is a conventional seat movement adjusting device.

FIG. 2 is a plan view of a first embodiment of a safety device for an automobile seat according to the present invention.

FIG. 3 is a plan view of a first embodiment of a safety device for an automobile seat according to the present invention.

FIG. 4 is an electric circuit diagram of a first embodiment of a safety device for an automobile seat according to the present invention.

FIG. 5 is a front view of a sensor in the first embodiment of the safety device for a vehicle seat according to the present invention.

FIG. 6 is a view in which the vehicle seat of the first embodiment of the vehicle seat safety device according to the present invention is moved forward.

FIG. 7 is a view in which the vehicle seat of the first embodiment of the vehicle seat safety device according to the present invention is rearwardly moved.

FIG. 8 is a plan view of a second embodiment of a safety device for an automobile seat according to the present invention.

[Explanation of symbols]

 5 Rail 60 Cylinder 62 Piston Rod 70 Electric Circuit Box 71 Sensor 72 Air Valve 80 Ventilation Valve 610 Three-pronged Valve 611 Air Vent 612 Suction Valve 613 Vent Vent 620 Hooking Groove 621 Grooved Rod 622 T-Shaped Clasp 720,721 , 801, 802, 803 Opening mouth

Claims (3)

[Scope of utility model registration request] 1. A cylinder installed on a bottom plate of an automobile, having a cylinder, a cylinder, a piston rod extending in front of the cylinder, and a plurality of catching grooves upward at a front end of the piston rod. An air compressor with a rod attached, a catch groove pinched by a T-shaped clasp at the bottom of the seat, the seat moving with the piston rod, and vents at the front and rear ends of its cylinder. And some vents, each vent communicating with each other when electricity is on and interrupting each other when electricity is off, connecting at least one vent with the vent of the cylinder. , And a single three-pronged valve with a vent to the atmosphere, multiple sensors installed in the front of the vehicle to detect collisions and send signals to the electrical circuit, and one electrical circuit Place it in the box, In response to the signals from a plurality of sensors, the three-pronged valve is turned on to make each vent communicate with each other, and after a certain period of time, the electricity is turned off again to shut off the three-pronged valve. Auto seat safety device. 2. The vehicle seat safety device according to claim 1, wherein the sensor therein is normally kept on or off, and in the event of a vehicle collision, the abnormality is immediately detected and a signal is issued. 3. The vehicle seat safety device according to claim 1, wherein the cylinder is provided with a single suction valve in the fluid filling portion to serve for filling the high pressure fluid and at the same time prevent the fluid from flowing out.