JPH0246204B2 - SHIJIRYOKUKAHENSEIMATSUTO - Google Patents

Description

[Detailed Description of the Invention] The present invention allows the support force to be easily and freely selected depending on the object to be placed on, such as a human body, and the support force can be easily varied in accordance with the weight of each part of the object to be placed on the object. A supporting force that allows for suitable horizontal support that can be carried out in a non-close contact, that allows the support force to be freely selected, and that does not maintain local close pressure more than necessary. This is aimed at variable pine.

Conventional mat structures for the human body, etc. are mainly made of foam, and the ones currently on the market are almost entirely made of the same foam, and once purchased, the characteristics at that time are different. It is fixed by , and no variation in properties is allowed, only changes in properties due to aging. Variation plans include joining foams with different foam densities, making adjustments by forming cavities, or arranging springs, but it is difficult to achieve smooth support force adjustment. It was hot.

Therefore, the current situation is that it has not been put into practical use.

The mats currently in use are mainly made of foam or are made of a composite of foam and springs, so their properties deteriorate significantly during use due to mechanical and chemical aging. In particular, the difference in properties between the heavy and light parts is becoming larger and larger, making it difficult to maintain the initial properties, and many products are currently used with the knowledge that their properties have deteriorated. .

Therefore, in order to solve the conventional situation, the inventors first eliminated mechanical and chemical aging factors, created a structure that was not affected by aging, and also made it possible to freely select and change the supporting force. In addition, it is easy to select and apply a supporting force that is suitable for the heavy and light parts of the mounting body.
Furthermore, we have explored a concept that allows for extremely smooth changes in support capacity. In addition, the mounting body is immersed like a foam and does not fluctuate.
The purpose of this study was to find a structure that can support the device without sustaining localized tight pressure contact, which can cause bedsores, and also allows for temperature control.

In other words, the core of a structure that is not affected by aging is to use a fluid such as gas or liquid. , it is necessary to suppress instability due to excessive degrees of freedom, which is a disadvantage of fluids. In addition, in order to obtain a supporting force suitable for the heavy and light parts, it is necessary to independently arrange the fluids in parallel, and it is also necessary to have a concept in which the pitch of the arrangement can be freely changed.

Next, aspects of the present invention will be described in detail based on drawings showing an example embodying the above concept.

FIG. 1 is a schematic plan view showing the arrangement of fluid bags of the variable support force mat of the present invention with the outer coating layer removed.

FIG. 2 is a side view showing the inside of the coating layer by cutting away the side thereof, and also shows a cross section of a part of the pine tress.

FIG. 3 shows a cross section taken along the line -- in FIG. 1, and FIG. 4 is an enlarged sectional view of the groove.

In the figure, ML is a semi-rigid pine tress, 1 is a semi-rigid foam, and in this example, semi-rigid polyurethane foam is used. 2 is a mattress cover, 3 is a groove portion, 4 is a U-shaped groove reinforcing frame made of a hard material such as hard plastic, 5, 6
1 is a pipe formed of a hard plastic tube for pumping fluid, 5 is a first fluid pipe, 6 is a second fluid pipe, and FB is a fluid bag.

This invention sets up a cylindrical fluid bag FB that utilizes the cushioning properties of fluids such as gas or liquid that can always provide a constant supporting force without fear of aging. Since it is not possible to obtain highly elastic and stable cushioning properties, it is installed on a semi-rigid pinerest.
This elongated cylindrical fluid bag FB is made from a laminate of multiple plies of rubberized cloth members (for example, two plies of nylon cloth).

However, just by arranging cylindrical fluid bags FB of the same outer diameter in parallel, stable and suitable support cannot be obtained due to instability due to excessive freedom of the fluid.

Therefore, each individual FB-1, FB-2, of a large number of independently set cylindrical fluid bags FB.
FB-3...When supplying air to FB-on, odd number
On fluid bag FB-1, FB-3...FB-on and even number
The air pressure sent to the fluid bags FB-2, FB-4...FB-en has different air pressures (for example, the fluid pressure of the odd numbered fluid bags is 0.4Kg/cm ² to 0.15Kg/cm ² ,
Fluid pressure of even number of fluid bags is 0.25Kg/cm ² ~ 0.10Kg/cm ²
Normally, by setting the pitch between the fluid bags to 80% to 70% of the outer diameter of the fluid bags, it is possible to
The even-numbered fluid bags are configured to press against each other and deform to suppress excessive degrees of freedom, thereby providing stable cushioning properties.

In addition, by setting the pressure difference between the odd number on and the even number en, the closeness of the surface is improved, and there is no need for localized tight pressure contact, which prevents immersion and close contact over time as in the case of foam. In addition, suitable cushioning properties are exhibited due to non-close contact, and phenomena such as congestion due to local density are also eliminated. In addition, in setting the pressure difference between odd-numbered ON and even-numbered fluid bags, fluid may be sucked and discharged alternately at regular intervals to form a wave front state of pressure difference on the upper surface.

In addition, the body on which a person is placed is composed of large differences in weight between parts such as the head, torso, lower waist, and legs. The objective is to always support the mounting body in a straight line by providing supporting force corresponding to the respective weights of the lightweight part and the lightweight part. That is, the amount of concavity between the heavy portion, such as the area below the waist, and other lightweight portions should be made similar to each other.

In this case, in addition to the stable cushioning structure described above, it is necessary to change the pitch between the fluid bags in accordance with the weight difference in order to adjust the amount of depression caused by the weight part.

That is, the pitch of the corresponding portion of the heavy portion is narrower than that of the lightweight portion. For example, compared to the normal pitch mentioned above, 70% to 60% of the outer diameter of the fluid bag
Set the pitch within the range.

Therefore, overall, 80% to 60% of the outer diameter of the fluid bag
It is preferable to set different pitches for each part within the range of %.
The most preferable option is one that can be easily adjusted by each person to suit his/her own constitution.

With the present invention, it is possible to achieve this ideal as well.

As an example, Fig. 1 shows a plan view when all fluid bags FB are arranged in parallel at equal pitches.
Odd-numbered fluid bags and even-numbered fluid bags are manufactured with the same outer diameter, and the odd-numbered fluid bags are connected to the first fluid pipe 5 with a rubber tube, and the odd-numbered fluid bags are connected to the second fluid pipe 6. connected to.

The diagram shows odd number ON fluid bags FB-1, FB-3, FB
-5...This diagram shows the case where air is blown into only FB-on and pressurized. The pitch shown is
All cases are when set to 75% of the outer diameter of the fluid bag FB.

In the variable supporting force mat of the present invention, the outer side of the juxtaposed fluid bags shown in FIG. 1 is entirely covered with a coating layer 11.

For the covering layer 11, an appropriate material made of fiber material is used depending on the purpose, and when used for an operating table or the like, a turbolin cover is used. Covering layer 11
In order to make it easy to attach and remove, the periphery is removably fixed with a snap or a combination tape 13 consisting of a loop tape with a loop-like structure formed on the surface and a hook tape with a hook-like structure formed on the surface (hereinafter referred to as (also called loop tape or hook tape). In some cases, only one side of the periphery may be sewn, as in the case of the sewn portion 12. In addition, as shown in the cross section of FIG. 3, the fluid bag FB is made by attaching a loop tape 9 to a topping sheet 8 fixed on the pine tress.
As shown by the dotted line in FIG. 1, at least two loop tapes 9 are set over the entire length in the longitudinal direction,
By attaching a hook tape 10 to the lower part of the fluid bag FB in the longitudinal direction and setting the desired pitch using a combination tape of the loop tape 9 and the hook tape 10, it can be attached and detached freely, allowing the user to freely use the hook tape 10. It is possible to adjust. In this case, the fluid bag
It goes without saying that the rubber tube 7 connecting the FB and the fluid pipes (first fluid pipe 5, second fluid pipe 6) is connected with a long length. If it is manufactured in a fixed manner according to the standard human body's heavy and light parts, that is, if no adjustment is required, toppings attached to the lower part of the fluid bag FB and the pine tress cover. The sheet 8 may be connected by pasting a rubber sheet. In addition, when attaching a loop tape or a hook tape, depending on the case, the topping sheet 8 may be omitted and attached directly to the mattress cover.

Fig. 4 shows an enlarged cross section of the groove 3 that houses the fluid pipe that introduces fluid such as air into the fluid bag FB. The first fluid pipe 5 and the second fluid pipe 6 are set in the groove reinforcing frame 4, and the required number of branch pipes 5a and 6a are installed in each fluid pipe. and connect it to the rubber tube 7 of the fluid bag.

In this embodiment, the first fluid pipe 5 is a pipe that introduces air into odd-numbered fluid bags, and the second fluid pipe 5 is a pipe that introduces air into odd-numbered fluid bags.
It is supplied from the fluid pipe 6. Fluid is introduced into the fluid pipe using a compressor or cylinder, and a pressure difference is established. Note that it is convenient to automatically control the introduction and adjustment of fluid pressure by a control device. Air is mainly used as the fluid to be introduced, but liquid may also be used in some cases. Furthermore, it is also possible to add temperature conditions such as heat retention and cooling to the fluid.

As described above, unlike bedding mainly made of foam, the variable support capacity mat of the present invention is composed of fluid bags that are not affected by aging, and the instability that is a drawback of fluids is eliminated. In addition, appropriate supporting force can be obtained freely and easily by changing the pitch.
Further, not only can supporting forces corresponding to the heavy and light parts be easily obtained, but also the pitch can be easily adjusted by the user.

In addition, by setting a pressure difference between the odd-numbered fluid bags and the even-numbered fluid bags, close contact between the contact surfaces is prevented, and phenomena such as congestion due to continued close contact in local areas are also eliminated, and non-close contact is avoided. This provides suitable cushioning properties. Furthermore, it is possible to easily support the human body in a straight line at all times.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of the arrangement of the fluid bags of the variable support mat of the present invention, FIG. 2 is a side view showing the inside by cutting away the side of the coating layer, and FIG. FIG. 1 is a sectional view taken along the line, and FIG. 4 is an enlarged sectional view of the groove. ML...Semi-rigid pine tress, FB...Fluid bag,
FB-1, 3, 5,...FB-on...odd number of fluid bags,
FB-2, 4, 6,...FB-en...Even number of fluid bags,
9...Loop tape, 10...Hook tape, 11...
...covering layer.

Claims (1)

[Claims] 1. When arranging a large number of cylindrical fluid bags made of rubberized cloth members in parallel on a semi-rigid mattress on a bed, a range of 80% to 60% of the outer diameter of the fluid bags is provided. A variable supporting force mat in which odd-numbered fluid bags and even-numbered fluid bags are held at different fluid pressures, and all fluid bags are covered with a coating layer. 2 At a pitch in the range of 80% to 60% of the outer diameter of the fluid bag, the pitch of the heavy part is made smaller, the pitch of the lighter part is made larger, and the pitch is adjusted to the pitch corresponding to the weight, depending on the weight of each part of the mounting body. 2. The support force variable mat according to claim 1, wherein the fluid bag is arranged in the support force variable mat. 3 Fluid pressure of odd numbered fluid bags is 0.4Kg/cm ² ~ 0.15
Kg/cm ² , the fluid pressure of even numbered fluid bags is 0.25Kg/cm ² ~
The variable supporting force mat according to claim 1, wherein the mat is maintained with a pressure difference between both fluid bags in the range of 0.10 Kg/cm ² . 4. The support force variable mat according to claim 1, wherein in the parallel arrangement of the fluid bags on the semi-rigid pine tress, the fluid bags are movably fixed with a combination tape consisting of a loop tape and a hook tape.