JPS6041949Y2 - Anti-stress gangrene chair - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a compressive scar prevention chair suitable for use as a wheelchair in which a physically handicapped person or the like sits while moving, or as a work chair in which to sit in the same position for a long period of time.

When a disabled person, whose nerves from the waist down are paralyzed and is insensitive to body pressure, sits in a wheelchair or work chair for a long time, the body pressure support point hardly moves like in a healthy person, and the pressure of the body weight reduces blood flow. pressure scars are likely to occur on the buttocks due to obstruction of skin breathing.

For this reason, conventionally, the seat has been constructed using an air bag or foamed litan covered with leather, either alone or in combination, to disperse body pressure and prevent the above-mentioned compressive scarring.

However, it is difficult to achieve sufficient body pressure distribution, and it is not effective in preventing pressure scarring.Also, the poor ventilation of the seat area tends to cause stuffiness, inhibiting the skin's breathing, and is not very comfortable. .

In view of the above, the object of this invention is to provide a chair for preventing pressure scars that can effectively prevent the development of pressure scars in the buttocks and is comfortable to sit on.

The gist of this idea is that it is made of filament lock material,
The seat of the chair is made of pine tress, which is filled with a cushioning material that maintains communication in all directions without blocking the internal space when body pressure is applied. The chair is equipped with a swinging member that repeatedly presses the lower surface of the chair.

An example of this invention will be described below with reference to figures.

Here, explanation will be given using a wheelchair as an example, but the invention is not limited to this.

In the wheelchair as shown in FIG. 1, the seat A is formed by a pinerest 1, and as shown in FIG. It is arranged.

The above-mentioned pinerest 1 is made of filament lock material, and the cushioning material 3 is made of a highly breathable outer cover 5 made of cotton cloth or the like, and the cushioning material 3 maintains communication in all directions without blocking the internal voids when body pressure is applied. Covered, thickness 10-50rI
r! Use IL.

Here, filament lock material refers to thick denier (50
~1000a) Synthetic filaments such as polyester fibers are given three-dimensional curls (three-dimensional and two-dimensional) and then shaped into a predetermined shape while being unraveled. The intersections of the filaments are joined and locked.

The swinging member B is configured by a plurality of elastic strips 6 arranged in a plurality of rows, and one end of each elastic strip 6 is attached to a short shelf-shaped fixed plate 7 arranged in parallel at a predetermined interval. , the other end is fixed to a band-like movable plate 1 arranged perpendicularly in parallel with the fixed plate 7, and can be alternately extended and raised.

This elastic band plate 6 may be a plastic plate, a rubber plate, a metal plate, or a flat tube as long as it has a cicada property.

The movable plate 8 has one end connected to the horizontal beam 1 of the pair of swing frames 10, 10.
It is fixed to one of 0a and 10a.

The swinging frames 10, 10 have rollers 11, 11 attached to both side plates so that they can run on guide rails (not shown), and a crank plate 1 to which the base ends of both side plates are attached.
It is said that it is possible to approach and separate by 2.12 rotations.

Further, an operating lever 13 is attached to the crank plate 12 so that the user can rotate the crank plate 12 while sitting on the seat.

In addition, in FIG. 3, the leftmost row of elastic band plates 6 have been removed.

Next, how the above embodiment is used will be explained.

When a disabled person or the like moves while sitting on a wheelchair, the operating lever 13 is moved back and forth several times at appropriate intervals.

Then, the crank plate 12.12 rotates, the pair of rocking plates 10.10 move closer to each other and move away from each other, and the plurality of elastic strips 6 in each row alternately stretch and bulge.

Therefore, the body pressure support point of the buttocks occurs at the raised portion of the elastic band plate 6, and the body pressure support point moves.

Therefore, the blood flow and
Skin respiration inhibition is removed and pressure scarring is effectively prevented.

In addition, the porosity of the cushioning material of the pine tress of this invention is large and has good ventilation, so it does not get stuffy, is more effective in preventing scarring than other pine tresses, and is comfortable to sit on.

Note that the swinging member and the swinging mechanism are not limited to those in the above embodiment, and the operation may be electrically operated instead of manual.

In addition, if an air blowing means is provided in the above-mentioned pine stress, the atmosphere at the site where compressive scars occur on the buttocks (body pressure support point) can be kept at a favorable humidity and temperature, which will further prevent the occurrence of compressive scars. Effective.

Since the compressive scar prevention chair of this invention has the above-mentioned configuration, it can effectively prevent compressive scarring that occurs on the buttocks when a physically handicapped person or the like sits on the chair for a long time, and is comfortable to sit on.

Note that this chair is also suitable as a working chair when even a normally healthy person works in the same posture for a long time.

Furthermore, this chair can also be used to treat pressure scars after they have developed.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a wheelchair to which the chair of this invention can be applied;
FIG. 2 is a principle diagram of the seat of the chair of this invention, and FIG. 3 is a perspective view showing an example of the swinging member and mechanism used in the chair of the invention. 1...pine tress, 3...cushion material, 6...elastic band plate, 7...fixing plate,
Death...Moving plate, 10...Swinging frame, 12.
... Crank plate, 13 ... Operation lever,
A... Seat part, B... Swinging member.

Claims (1)

[Scope of utility model registration request] The seat of the chair is made of filament lock material, which maintains a state of communication in all directions without closing the internal voids when body pressure is applied, and is filled with a cushioning material that has a river cicada property. and a swinging member that repeatedly presses the lower surface of the pinerest is disposed below the seat.