JPH01254495A - Seat device - Google Patents

Abstract

PURPOSE:To prevent a damage of a head part in a way to securely adhere a head part to a head rest, by providing a drum which is situated in a manner that a cable tied to the head helmet of a pilot can be wound upon receipt of a signal from an acceleration sensor. CONSTITUTION:When a high acceleration is exerted on an aircraft, by means of a differently mounted acceleration sensor 9, a drive device 4 and a clutch 5 are actuated to rotate a drum 6, and a cable 7 is wound around the drum 6 to secure the head part of the pilot to a head rest 10. When a high acceleration state is rendered ineffective, a signal from the acceleration sensor 9 is brought into an OFF-state, the drive device 4 is stopped, a clutch 5 is disengaged to bring the drum 5 into a free state, and the cable 7 is stretchable according to movement of the head part of the pilot. This constitution enables sharp improvement of safety of a pilot under high acceleration and provision of enough performance of an aircraft, and permits eminent enlargement of an operation range.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a seat system for, for example, an aircraft.

[Conventional technology]

In recent years, aircraft have become increasingly sophisticated and are now capable of making sharp turns at high speeds, and as a result, pilots are subject to high acceleration.

For example, it is generally known that when a pilot is subjected to high downward acceleration, blood in the brain rapidly drops, resulting in dizziness and a momentary loss of vision called blackout.

In order to alleviate this problem even a little, pilots wear high-acceleration resistant gloves that compress the lower abdomen and prevent blood from descending during high-acceleration loads.

[Problem to be solved by the invention]

FIG. 3 is a side view of a conventional ejection seat device. In the figure, the pilot 1 is normally in a forward leaning position to check the instruments located in front of him and the situation in the outside world.
The head of the person is seated in a headrest 10 located at the top of the seat device 2.
away from Note that 14 is a shoulder harness. In such a situation, for example, if a high downward acceleration is applied, the tibia and spine may be damaged, and if a 1fc sudden roll movement is subjected to a high lateral acceleration, the same damage may be caused. Instinctively I try to bring my head into close contact with the headrest IOK. However, due to the load caused by high acceleration, it is not possible to do as expected, and the operator has no choice but to reduce the acceleration to a load that pilot 1 can withstand. I have a problem.

[Means to solve the problem]

The seat device related to the Honmei σ-guchi is designed to solve the above-mentioned problems and increase the pilot's ability to withstand acceleration. It is characterized by a configuration comprising a drum attached to the rope body connected to the operator's helmet so as to be able to wind it up.

[Effect]

That is, in the seat device according to the present invention, a head fixing device consisting of a drum, a cable body, and an acceleration sensor is installed, and one end of the cable body is connected to the pilot's helmet, so that the aircraft is not subject to high acceleration. When the pilot is hit by a head restraint, the head restraint device is activated and the pilot's head is tightly secured to the headrest to prevent head injury.

〔Example〕

Embodiments of the present invention will be described based on FIGS. 1 and 2. In addition, parts common to those in Fig. 3 are shown in Fig. 3.
The same reference numerals as those in the drawings are used to omit the explanation.

FIG. 1 is a side view of a seat device according to an embodiment of the present invention, and FIG. 2 is a block diagram thereof. In the figure, the seat device according to the present embodiment is provided with a backrest head fixing device 3 as shown in FIG. ．． The clutch 51 is composed of a drum 6 containing a torsion spring, a cable 7 wound around the drum 6, and the like, and one end of the cable 7 is connected to the helmet 8 of the operator 1.

When the aircraft receives a high acceleration, a signal from an acceleration sensor 9 installed separately activates the clutch 5 in the drive unit 4 to rotate the drum 6, which winds up the cable 7 and cuts the head of the pilot 1. headless) IOK is fixed. When the high acceleration state is resolved, the signal from the acceleration sensor 9 becomes O.
Since it becomes FF, the drive device t4 is stopped, the clutch 5 is released, the drum 6 becomes free, and the cable 7Fi can be extended in accordance with the movement of the operator's 1 head. Note that the cable 7 is wound up by rotating the drum 6 by a not-illustrated torsion spring K provided in the drum 6.

A cable cutter 11 is provided in the middle of the cable 7 in order to separate the pilot 1 and the seat apparatus 2 after the seat apparatus 2 is separated from the aircraft by an evacuation propulsion mechanism (not shown) in the event of an emergency. It is also possible to cut 7. Further, the acceleration sensor 9 can output a signal only when an acceleration of a certain level or higher is applied, or it can also output a signal by discriminating the magnitude of acceleration via the signal discriminator 13. Further, when the pilot 1 escapes from the aircraft in an emergency, it is possible to protect the pilot 1 by fixing the head to the headrest 10 regardless of the magnitude of acceleration using the escape signal 12'.

Furthermore, although a shoulder harness 14 is installed in the conventional seat device, the drum 6 is equipped with this shoulder harness 1.
4 can also be used together, and in this case, the function of the seat device according to this embodiment is doubled.

〔Effect of the invention〕

Since the seat device according to the present invention is configured as described above, the safety of the pilot under high acceleration is significantly improved, and the performance of the aircraft is fully demonstrated, and the operational range is greatly expanded. The effect is produced.

[Brief explanation of the drawing]

FIG. 1 is a side view of a seat device according to an embodiment of the present invention, FIG. 2 is a block diagram thereof, and FIG. 3 is a side view of a conventional seat device. 1... Operator, 2... Seat device, 3... Head fixation device, 4... Drive device, C5... Clutch,
6... Drum (j so 7... Cable, 8... Helmet, 9... Acceleration sensor, 13... Signal discriminator, 15... Operating source.

Claims (1)

[Claims] A seat device comprising an acceleration sensor that detects the acceleration of an aircraft, and a drum that is attached to be capable of winding up a rope connected to an operator's helmet in response to a signal from the acceleration sensor. .