JP2588997Y2 - Bottom cushion for life jacket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a bottom cushion for a seat of a chair constituted by an aircraft or a vehicle, and particularly to a life jacket that can be used as a life-saving floating bag in an emergency. The present invention relates to a bottom cushion for a shared seat.

[Conventional technology]

Conventionally, a life jacket for passengers has been stored under the seat bottom cushion of a chair configured to be mounted on an aircraft.For example, in an emergency such as when an aircraft crashes at sea, passengers can be placed under the bottom cushion. The life vest which is housed and arranged in a constructed case or the like can be pulled out by a strap and attached to the body for use.

However, it is extremely rare that passengers can take out and attach the life vest with ample margin at the time of emergency landing of an aircraft as described above, and in many cases it is necessary to escape from the aircraft as it is There are many. In such a case, it is considered that if a lifesaving device such as a bladder that can be used easily instead of a life jacket is nearby, it is extremely effective for rescuing human life.

On the other hand, as a conventional seat bottom cushion configured in a chair, a chair configured using a cushion material in which polyethylene foam having closed cells is dispersed and formed is often used.

[Problems to be solved by the invention]

However, the cushioning material of the seat in which the conventional closed cells are formed has very poor air permeability, and when sitting for a long time, the seating surface becomes stuffy, and the closed cells are included. Has a problem that the bending is small and the sitting comfort is poor.

Further, although the cushioning material has a slight buoyancy to water, it has been difficult for the cushioning material itself to be a life-saving device instead of a floating bag.

The present invention has been made in view of the above problems,
It is an object of the present invention to provide a bottom cushion for a life jacket and a seat that can be used as a life-saving floating bag in an emergency by imparting buoyancy to the cushion material itself without reducing sitting comfort with a simple structure. is there.

[Means for solving the problem]

In order to achieve the above object, the bottom cushion for a life jacket and a seat according to the present invention is configured to be detachable from the chair so that the seat bottom cushion can be easily removed from the chair. The bottom cushion is formed of a cushion material in which open-celled urethane foam is integrally formed into a predetermined shape and a predetermined thickness, and the bottom cushion is elongated.
A gas such as air or an inert gas is sealed in the flexible tube of the book, a plurality of portions of the tube are tightened or welded, and a plurality of air bags are connected in a chain to form a chain air bag, In order to impart buoyancy to the bottom cushion, the chain-shaped air bag is bent and embedded in the cushion material so as to cover substantially the entire surface in a planar direction, and a strap is provided on the bottom side of the seat bottom cushion. It is the gist of having it.

In addition, in place of the chain-shaped air bags, independent independent air bags formed by sealing air or an inert gas or the like in a flexible tube are formed to impart buoyancy to the bottom cushion. It is also possible to embed a plurality of the air bags so as to cover substantially the entire surface of the cushion material.

[Action]

According to the above configuration, in the cushion material, besides the urethane foam, a chain-shaped air bag composed of a plurality of air bags is bent and embedded so as to cover substantially the entire surface in the plane direction, or a plurality of independent air bags. Since the bottom cushion is embedded so as to cover almost the entire surface, buoyancy can be imparted to the bottom cushion itself, and the bottom cushion can be easily removed from the chair in an emergency to double as a life-saving floating bag. In addition, the arm can be used as a life jacket by passing both arms through a strap provided on the bottom surface side, or by gripping the strap.

In particular, since a plurality of air bags are sealed in the cushion material, even if any one of the plurality of air bags ruptures, the influence on the buoyancy of the cushion material as a whole is small. The cushion can ensure sufficient buoyancy.

In addition, since the chain-shaped air bag embedded in the cushion material or the independent air bag itself has elasticity, the cushion material has elasticity, and the sitting comfort of the seat is improved.

〔Example〕

Hereinafter, an embodiment of a bottom cushion for a life jacket and a seat according to the present invention will be described with reference to the drawings.

FIG. 1 shows an aircraft seat constituting a bottom cushion for a life jacket and a seat according to the present invention.

Reference numeral 1 denotes a seat back pivotally supported so as to be capable of tilting backward and backward through a reclining mechanism (not shown) having a fulcrum at the rear end of the seat bottom cushion 2. Armrests 3 and 4 are fixedly provided on both sides of the seat bottom cushion 2, a cocktail tray 5 is provided at a front end of the center armrest 3, and an ashtray 6 is provided at a front end of the side armrest 4. 7 is a seat belt.

2 to 5 show a first embodiment of a seat bottom cushion according to the present invention.

Reference numeral 8 denotes a chain-connected air bladder embedded in the cushion material 9 constituting the seat bottom cushion 2. The chain-shaped air bag 8 encloses air A in a single flexible and long tube 10 such as a vinyl tube, for example, and tightens or welds a number of portions 11, 11,... Of the tube 10. Sealed and continuous air bags 12,12
... Are continuously formed.

As shown in FIG. 2, the chain-shaped air bladder 8 is bent into a meandering state in the cushion material 9 and buried in substantially the entire surface in the plane direction, and acts to impart buoyancy to the cushion material 9 itself. Things. Thus, when an aircraft equipped with the seat bottom cushion 2 constituted by the cushion material 9 crashes into the sea, the passenger removes the seat bottom cushion 2 from the chair, takes it out of the aircraft, and takes it to the outside. By grasping, it can be used as an emergency bladder. The length of the chain-like air bag 8 or the amount of air to be enclosed is appropriately increased or decreased,
The buoyancy of the seat bottom cushion 2 can be adjusted.

As a means for embedding the chain-shaped air bladder 8 in the cushion material 9, a method of forming a groove in the cushion material 9 and embedding the chain-shaped air bladder 8 in the groove, or a method of embedding the cushion material 9 There is a method of simultaneously embedding the chain-shaped air bladders 8 when integrally molding.

In addition, since the chain-like air bladder 8 is adapted to be able to deform the entire seat bottom cushion 2 following the deflection of the cushion material 9, the seat comfort is not adversely affected. Further, the synergistic effect of the cushion material 9 and the air bag 8 can improve the sitting comfort.

FIGS. 6 and 7 show a second embodiment of the present invention, in which a plurality of independent air bladders 13, 13,... The seat bottom cushion 2 itself is provided with buoyancy by being embedded so as to cover substantially the entire surface of the seat bottom cushion 9.

8 and 9 show a strap attached to the bottom side of the seat bottom cushion.

Reference numeral 14 denotes two straps provided on the bottom side of the seat bottom cushion 2. The passenger can use it as a life jacket by passing his / her arms through these two straps 14 and 14 while holding or holding the seat bottom cushion 2, so that the passenger's adhesion to the body can be improved. It is expensive, and its usability can be improved as compared with a thing simply grasped as a floating bag.

[Effect of the Invention] Since the bottom cushion for a life jacket and a seat according to the present invention is configured as described above, the seat bottom cushion can be replaced with a lifebuoy or a life jacket without affecting the comfort of the seat bottom. Can be used as

In particular, since a chain-shaped air bag composed of a plurality of air bags or a plurality of air bags is buried in the cushion material substantially entirely, even if any of the air bags ruptures in an emergency, the seat can be seated. Bottom cushion can secure sufficient buoyancy,
The practical effect after the implementation of the present invention is extremely large, for example, it can be used safely and reliably as a life-saving floating bag or a life jacket.

[Brief description of the drawings]

FIG. 1 is a perspective view of an aircraft seat constituting a bottom cushion for a life jacket and a seat according to the present invention. FIG. 2 is a chain-like air of a bottom cushion for a life jacket and a seat according to the first embodiment of the present invention. Explanatory perspective view showing a state in which a bag is embedded, FIG. 3 is an enlarged front view of a main part showing a chain-shaped air bag, FIG. 4 is an enlarged sectional view taken along the line IV-IV of FIG. 3, and FIG. FIG. 6 is an explanatory perspective view showing a state in which an independent air bag is embedded in a bottom cushion for a life jacket and a seat according to a second embodiment of the present invention, and FIG. 7 is the same. FIG. 8 is an enlarged front view of the air bag, FIG. 8 is a bottom view showing a state in which a strap is attached to the bottom side of the seat bottom cushion, and FIG. 9 is a partially cutaway side view. 2 Bottom cushion for seat 8 Chain air bag 9 Cushion material 10 Tube 12 Air bag 13 Air bag (independent) 14 Strap A Air

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 55-110396 (JP, U) Japanese Utility Model Sho 57-171750 (JP, U) Japanese Utility Model Sho 61-31248 (JP, U) Japanese Utility Model Sho 63- 120953 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] 1. A seat bottom cushion is detachably mounted on a chair so that the seat bottom cushion can be easily removed from the chair. The seat bottom cushion is formed of open-cell urethane foam having a predetermined shape and a predetermined thickness. In addition to being formed of an integrally molded cushion material, a gas such as air or an inert gas is sealed in a single elongated flexible tube, and a plurality of portions of the tube are tightened or welded to form a plurality of air bags in a chain. To form a chain-shaped air bag, and to impart buoyancy to the bottom cushion,
The chain-shaped air bag is bent and embedded in the cushion material so as to cover substantially the entire surface in a planar direction, and a strap is provided on a bottom surface side of the bottom cushion for the seat, wherein the seat also serves as a life jacket. For bottom cushion. 2. The seat bottom cushion is configured to be detachable from the chair so that the seat bottom cushion can be easily removed from the chair, and the seat bottom cushion is formed of open-cell urethane foam having a predetermined shape and a predetermined thickness. In order to impart buoyancy to the bottom cushion by forming independent independent air bags each formed by sealing a gas such as air or an inert gas in a flexible tube while being formed of an integrally molded cushion material. A plurality of the air bags are embedded so as to cover substantially the entire surface of the cushion material, and a strap is provided on a bottom surface side of the bottom cushion for the seat.