JPS6238421Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a forward slip prevention device for an automobile seat that prevents a passenger from slipping forward during brake operation.

Generally, when the brakes are operated while the vehicle is running, the occupant is pushed forward from the seat due to inertia, causing forward slippage. In order to improve the comfort and safety of automobiles, conventionally, automobile seats have been equipped with adjustment devices that adjust the height, angle, or fore/aft position of the seat, but this technology effectively prevents forward sliding. I couldn't do it. In addition, some seats had a high front edge to prevent forward slippage, but with these seats, the occupant's feet were always raised high, resulting in poor sitting comfort.

In view of the above, the object of this invention is to provide a forward slip prevention device for an automobile seat that can prevent an occupant from slipping forward during brake operation and improve the comfort and safety of the automobile.

To explain this idea based on the drawings, the first
In the figures and FIG. 2, 1 is a torsion bar. The torsion bar 1 is rotatably supported in a coiled state around a bracket shaft 3 provided on a bracket 2, and a plate-shaped push-up member 4 is attached to the end thereof. A plunger 6 of a solenoid 5 is connected to rotate the torsion bar 1 and push up the push-up member 4. The bracket 2 is attached to a seat lower frame 8 provided below the front edge of the seat 7, and the push-up member 4 attached to the torsion bar 1 pushes the front edge of the seat 7 from the inside as the torsion bar 1 rotates. It is arranged to be pushed up.
The push-up member 4 is disposed so as to push up the sheet 7 in a horizontal state. The solenoid 5 is connected to a drive circuit 9 that is activated by a brake operation signal, and the drive circuit 9 is configured such that when a foot brake switch 9a provided on the foot brake is turned on, current flows from a battery 9b to the solenoid 5. The solenoid 5 is configured to pull back the plunger 6 when current flows therethrough.

Next, the operation of this front slip prevention device will be explained.

First, while driving, if you do not operate the brakes,
The foot brake switch 9a remains off, the solenoid 5 is not driven, and the torsion bar 1 is not rotated, so the push-up member 4 is housed inside the front edge of the seat 7. On the other hand, when the foot brake switch 9a is turned on during a brake operation, current flows from the battery 9b to the solenoid 5, the solenoid 5 is energized, and the plunger 6 is pulled back. Then, the torsion bar 1 is rotated by the pullback of the plunger 6, and the push-up member 4 provided at the end of the torsion bar 1 pushes up the front edge of the seat 7 from inside, hitting the occupant's crotch area and causing forward slippage. Prevented. When the brake operation is released, the solenoid 5 is deenergized and the push-up member 4 is stored inside the seat 7 again.

In this embodiment, a foot brake switch is used in the drive circuit to sense the brake operation, but an acceleration sensor that operates during a certain deceleration may also be used.

As explained above, the forward slip prevention device for a car seat of this invention has a push-up member attached to a torsion bar disposed inside the front edge of the car seat, which pivots the end of the torsion bar and supports the torsion bar. By connecting the plunger of the solenoid to the torsion bar so as to rotate it and push up the push-up member, and by connecting the solenoid to a drive circuit that is activated by the brake operation signal,
The front edge of the seat is pushed up only when the brakes are applied, preventing the occupant from sliding forward when the brakes are applied.
This has the effect of improving the comfort and safety of the automobile without compromising the comfort of the seat while driving.

[Brief explanation of the drawing]

The figures show an embodiment of this invention; Fig. 1 is a perspective view of the front slip prevention device with the drive circuit omitted, Fig. 2 is a perspective view showing the same installation state, and Fig. 3 is a wiring diagram of the drive circuit. . 1...Torsion bar, 4...Pushing member, 5
... Solenoid, 6 ... Plunger, 7 ... Seat, 9 ... Drive circuit.

Claims (1)

[Scope of utility model registration request] A push-up member attached to a torsion bar is disposed inside the front edge of the automobile seat, and a plunger of a solenoid is rotated to pivot the end of the torsion bar and push up the push-up member. A front slip prevention device for an automobile seat, characterized in that the device is connected to a torsion bar, and the solenoid is connected to a drive circuit that is activated by a brake operation signal.