JP3218974U - Wheelchair cushion - Google Patents

Abstract

An object of the present invention is to provide a wheelchair cushion that can be washed in a circle, can be made to order for a user, and is easy to use.
A wheelchair cushion (1) is provided on a user side, and has a high air permeability and a user side portion (12) formed of a material having water absorbability. It has a seat surface side portion 71 formed of a material that is waterproof and has a higher frictional resistance, and a cover 91 that accommodates the user side portion and the seat surface side portion therein.
[Selection] Figure 3

Description

  The present invention relates to a wheelchair cushion.

  Patent Document 1 discloses a structure of a wheelchair cushion.

JP 2018-51148 A

A wheelchair cushion that is more convenient to use is desired.
An object of the present invention is to provide a novel wheelchair cushion.

  The cushion for a wheelchair in the first aspect of the present invention is provided on the user side, has a high air permeability, is provided on the user side portion formed of a material having non-water absorption, and on the wheelchair seat surface side, It has a seat surface side portion made of a waterproof material with higher frictional resistance than the user side portion, and a cover that accommodates at least the user side portion or the seat surface side portion inside.

  Preferably, the user side portion and the seating surface side portion are not fixed and are formed so as to be separated only by being taken out from the cover.

  Suitably, the said seat surface side part has an oblique part from which the thickness of an up-down direction becomes thin as it goes back from the front direction of a wheelchair.

  Preferably, the oblique portion is formed so as to move away from the user side portion.

  Preferably, the user side part includes a first part and a second part, and the second part has the same length in the front-rear direction and the left-right direction as the first part, The first portion is stacked in a lower layer and has a higher repulsive force than the first portion.

  Preferably, the user side portion is formed of a three-dimensional network structure.

  Preferably, the correction portion includes a correction first portion having a joint surface with the same inclination as the oblique portion, and when the correction first portion is joined to the oblique portion, And a modified second portion formed so that the length in the front-rear direction of the seat surface side portion and the first modified portion is shorter than the length in the front-rear direction of the user-side portion.

  A cushion for a wheelchair according to a second aspect of the present invention includes a user side portion provided on a user side, a seat surface side portion provided on a wheelchair seat surface side, and the user side portion and the seat surface side portion. And the seat surface side portion has an inclined portion whose thickness in the vertical direction becomes thinner as it goes from the front direction to the rear direction of the wheelchair.

  Preferably, the oblique portion is formed so as to move away from the user side portion.

  A cushion for a wheelchair according to a third aspect of the present invention includes a user side portion provided on a user side, a seat surface side portion provided on a wheelchair seat surface side, the user side portion, and the seat surface side portion. And the user side portion includes a first portion and a second portion, and the first portion, the second portion, the seat surface side portion, and the cover are mutually connected. It is formed so that it can be easily separated.

  According to the present invention, a novel wheelchair cushion can be provided.

It is explanatory drawing showing the usage method of the cushion for wheelchairs. It is explanatory drawing of the shape of a cushion content part. It is explanatory drawing of the structure of a cover, and the method of accommodating a cushion content part in this cover. It is explanatory drawing of the function of a seat surface side part. It is explanatory drawing of a correction part. It is explanatory drawing of the effect of a correction part. It is explanatory drawing of another attachment. It is explanatory drawing of the effect of an attachment.

  FIG. 1 is an explanatory diagram illustrating a method of using the wheelchair cushion 1.

The wheelchair 101 has a seating surface 101a.
The user uses the wheelchair 101 while sitting on the seat surface 101a when moving.
And a user uses various cushions in order to use this wheelchair 101 more comfortably The wheelchair cushion 1 of this invention is arrange | positioned and used on the seat surface 101a.

  Here, the wheelchair cushion 1 of the present embodiment prevents the user's body from wobbling to the left and right, and prevents the buttocks from sliding forward to make the seat pressure uniform. Used, to make it lightweight, for easy carrying.

Here, the direction is defined.
In the wheelchair 101, the user is sitting and the front is the front direction. The direction opposite to the front direction is the rear direction. Also, the user is sitting and the right hand is in the right direction. The opposite side of the right direction is the left direction.
Furthermore, the direction in which the user is positioned with respect to the seating surface 101a is the upward direction (the user side direction). The opposite of the upward direction is the downward direction (seat surface side direction).

In addition, the length in the front-rear direction of the seating surface 101a of the wheelchair 101 is defined as the seating surface front-rear direction length L, and the length in the left-right direction is defined as the seating surface left-right direction length W.
The wheelchair cushion 1 has a predetermined vertical length (thickness) having substantially the same size as the seat surface longitudinal length L and the seat surface lateral length W of the seat surface 101a. .

The wheelchair cushion 1 has a fastener portion 93 that continues from the left side surface to the right side surface via the rear side surface.
A fastener fitting 95 is provided to open and close the fastener portion 93.

  FIG. 2 is an explanatory diagram of the shape of the cushion content portion 11.

The cushion content portion 11 has a user side portion 12 and a seating surface side portion 71.
The user side portion 12 has a first portion 31 and a second portion 51.
The first portion 31 and the second portion 51 have a length (L1) substantially the same as the length L in the front-rear direction of the seat surface in the front-rear direction.
Similarly, has a length (W1) substantially the same as the length W of the seating surface in the left-right direction.
On the other hand, the second portion 51 is formed longer in the vertical direction than the first portion 31.
The user side portion 12 is formed of a material having extremely high air permeability (air permeability of 90% or more) and non-absorbability to water or the like (for example, waterproof processing). Specifically, it is a three-dimensional network structure made of a synthetic resin such as plastic.
This three-dimensional network structure is a structure made by three-dimensionally bonding a thread-shaped body made of a material that does not absorb water. It is non-absorbable.
Since the three-dimensional network structure itself is already a common material, the description thereof is omitted.
The first portion 31 and the second portion 51 are formed of the same three-dimensional network structure, but the first portion 31 is formed with a lower repulsive force than the second portion 51.
This is because the first portion 31 is a portion in which a user (wheelchair user, hereinafter omitted) sits and contacts, and is preferably a soft material that wraps the whole, and the second portion 51. This is because it is preferable that the material is firmly hard and stable in order to suppress left-right wobbling.
Moreover, since the user side part 12 is provided with non-absorbability to water etc. as mentioned above, it can be washed in a circle and can be dried in a short period of time.
Furthermore, since the user side part 12 has very high air permeability, it can prevent stuffiness.
Furthermore, high air permeability also means that air can be held in the space between the three-dimensional network structures. Air is a highly heat-insulating substance.
Therefore, it can also be said that the user side part 12 has heat insulation.
That is, it can be said that the user-side portion 12 has a heat-preventing function as well as a heat-insulating function.
An example of the dimension of the user side part 12 is W1 = 380 mm and L1 = 380 mm. This is just an example. The thickness of the first portion 31 is 20 mm, and the thickness of the second portion 51 is 35 mm. This is just an example.

The seating surface side portion 71 has a plate-like portion 74 having a uniform thickness and an inclined portion 73 having a shape that becomes thinner in the rearward direction.
The plate-like portion 74 has a length in the left-right direction that is 20 mm shorter than the length W1 in the left-right direction of the user-side portion 12.
On the other hand, the plate-like portion 74 has a length L3 in the front-rear direction.
An inclined portion 73 is formed following the rear side of the plate-like portion 74.
In the oblique portion 73, the seat surface side surface is continuous with the seat surface side surface of the plate-like portion 74.
That is, the oblique surface of the oblique portion 73 of the oblique portion 73 faces the user side portion 12 (second portion 51), and is separated from the seat surface side surface of the user side portion 12 as going backward. (It is particularly easy to understand with reference to FIG. 4 (1)).
That is, the seating surface side portion 71 has a trapezoidal shape in which a cross-sectional shape on a plane having a normal in the left-right direction is longer on the seating surface side.
The end portion on the long seating surface side of the oblique portion 73 has a length L2 from the entire surface of the seating surface side portion 71.
As a result, there is a length relationship of L3 <L2 <L1.
And L3 is formed in the range of L3 = 0.3L1-0.7L1.
In addition, L2 is formed in a range of L2 = 0.4 to 0.9L1.
Note that, again, the relationship L3 <L2 is maintained.
The reason why the above range is appropriate is that this range is appropriate for appropriately holding the user's buttocks (butt).
Here, the reason for having the range is that the wheelchair cushion 1 of the present embodiment is scheduled to be made in order for the user. Therefore, a range is provided to cope with the user's physique, taste, degree of disability, usage, and demand.
However, generally the most appropriate range is L3 = 0.4L1-0.6L1. This is because the user's buttocks (butt) is located behind the oblique portion 73 within this range. Further, in the range of the value of L3, L2 is preferably in the range of L2 = 0.6L1 to 0.8L1 while maintaining L3 <L2. This is because, within this value range, the user's buttocks (butt) can be firmly held behind the oblique portion 73.
As specific numbers, L3 = 220 mm (L3 = 0.57L1) and L2 = 260 mm (L2 = 0.68L1) are appropriate. W2 = 360 mm. The thickness is 20 mm.
The length of the oblique portion 73 in the front-rear direction is 40 mm.
Here, what is important in this embodiment is that the length of the seat surface side portion 71 in the left-right direction and the length in the front-rear direction are shorter than the user side portion 12 (specifically, 20 mm each). That is. Thereby, there is an effect that the seating surface side portion 71 can be easily taken in and out.
It is also possible for the user to adjust by cutting to an appropriate length.

The seat surface side portion 71 is made of, for example, polyurethane (urethane).
The seating surface side portion 71 is formed of a material having high elasticity such as rubber.
Specifically, the second portion 51 is formed to have higher elasticity than the first portion 31, but the seat surface side portion 71 is also formed to have higher elasticity than the first portion 31. .
The seat surface side portion 71 is preferably formed to have higher elasticity than the second portion 51.
The reason is to deform (bend) the user side portion 12 as shown in FIG. 4. The seat surface side portion 71 is formed of, for example, a polyurethane (urethane) plate.
The seat surface portion 71 is made of a material having high elasticity such as rubber.
By making it into a plate shape, it is possible to reduce the deflection of the wheelchair-side seating surface 101a and to stabilize the sitting posture.
Furthermore, since it is made of polyurethane or the like, it can be cut to an appropriate length by itself and adjusted to an appropriate length.
In addition, since the three-dimensional network structure on the user side 12 is a structure in which the thread-shaped bodies are joined together, it is highly repulsive, so it can be flexibly deformed like the user side portion 12 as shown in FIG. it can.

Further, the seat surface side portion 71 is formed of an antibacterial / water resistant material (for example, waterproof processing).
In addition, the seat surface side portion 71 is not only water-resistant but also has a shape and a material that has low water absorption and low water retention.
It is also possible for the user to adjust by cutting to an appropriate length.

The seat surface side portion 71 is formed of a material having a high frictional resistance.
That is, it is formed in a material / shape having a higher frictional resistance than the user side portion 12.
This is because if the seat surface side portion 71 slips between the user side portion 12 in the cover 91, the performance as a cushion is reduced.
Moreover, since the seating surface side part 71 enters the inside of a cushion, it does not touch the seating surface 101a directly.
However, as will be described later, the seat side portion 71 can be used outside the cover 91. In this case, since the seating surface side portion 71 enters the cushion, it directly touches the seating surface 101a.

Here, in this embodiment, only the seat surface side portion 71 is formed of urethane, and the user side portion 12 is formed of a three-dimensional network structure. On the other hand, the conventional product is made of urethane including the user side portion. In the case of a product having a function close to that of the present invention, the user side is usually made of low-resilience urethane, and the seat surface 101a is usually made of high-resilience urethane. Of course, there are also those with a multi-layer structure.
However, in general, a mold is required for manufacturing cushions made of these urethanes.
This means that the mold is expensive because it is generally expensive.
Furthermore, the mold has a fixed shape, and it is necessary to make a new mold even for a slight change in shape.
Therefore, there is a feature that it is difficult to make an order for the user because the cost is not allocated.
On the other hand, in the structure of the present embodiment, since this mold is only the seat surface side portion 71, it is suitable for order-made relatively easily (in terms of cost).
If the seat side portion 71 is also made a little larger and cut as necessary, it can be handled with one mold.
In addition, the urethane material of the seat surface part is made of a material that is elastic like rubber so that it can be easily inserted into the interior, and by adjusting the thickness of the urethane, it is devised so that it does not fit properly within the cushion cover. It is also characterized by being lightweight.

  FIG. 3 is an explanatory diagram of the structure of the cover 91 and a method of accommodating the cushion content portion 11 in the cover 91.

As shown in FIG. 3, the cover 91 is formed with a fastener portion 93.
The fastener portion 93 continues from the left side surface of the cover 91 to the right side surface via the rear side surface.
The fastener part 93 has a part which does not form a fastener a little in the front direction on the right side surface and the left side surface. Specifically, the fastener portion 93 is formed such that the length L5 where the fastener portion 93 is formed is shorter (= the length L4 remains) than the length L5 of the right side surface (left side surface).
This has important implications.
In FIG. 2, the cushion content portion 11 is described as being put together, but actually, the seat side portion 71 is inserted after the user side portion 12 is put into the cover 91.
As described above, the seat surface side portion 71 is shorter than the user side portion 12 in the front-rear direction.
Further, as shown in FIG. 4, the length and shape of the seating surface side portion 71 are important for fixing the user's buttocks (butt), and are manufactured and designed in order according to that.
Therefore, the seat surface side portion 71 needs to be packed in the front direction of the cover 91.
At this time, if there is a portion L4, the seat surface side portion 71 is stabilized when pushed.

The cover 91 is also air-permeable, has a low water absorption capability and a low water retention capability and is shaped. Specifically, it is generated with mesh fabric.
The surface on the seating surface 101a side of the cover 91 is anti-slip processed. For example, the anti-slip process is embossed. This prevents the seat surface 101a and the wheelchair cushion 1 from slipping.
Note that the lengths of the cover 91 in the left-right direction and the front-rear direction are longer than the respective lengths of the cushion contents.
Specifically, each is created as long as 20 mm.
In one example, the length in the front-rear direction is 400 mm, and the length in the left-right direction is 400 mm.
It should be noted that one of the important points of the present embodiment is an example of a product because it is made to order.
In this way, each part of the cushion content portion 11 is devised so that it can be easily put in the cover 91.
In FIG. 3, both the user side portion 12 and the seating surface side portion 71 are housed in the cover 91, but the effect of the present embodiment can also be exhibited by housing only one of them.
In particular, it is appropriate in this case that the seat surface side portion 71 is out of the cover 91 because there is no need to put it in the cover 91 one by one.

As described above, the cover 91, the first portion 31, the second portion 51, and the seating surface side portion 71 can be easily separated from each other. Further, the cover 91, the first portion 31, the second portion 51, and the seating surface side portion 71 are all made of a material having a low absorption power and a low water holding power and such a shape.
This makes it possible to:
First, since all are individual, manufacture is easy. Moreover, order-made according to a user is possible.
Furthermore, even when incontinence or other contamination occurs, it can be disassembled and individually washed and dried. Of course, the drying time is short.
Therefore, it is possible to provide the wheelchair cushion 1 having a simple structure and higher performance.

  FIG. 4 is an explanatory diagram of the function of the seating surface side portion 71.

As shown in FIG. 4A, the oblique portion 73 of the seat surface side portion 71 is formed so as to be separated from the user side portion 12 in the rearward direction.
Therefore, as shown in FIG. 4B, when the user is seated, the user side portion 12 is deformed to the seating surface 101a side.
As a result, the user has a shape in which the thigh is slightly raised and leans back.
Therefore, the user's posture is stabilized.
Moreover, since the 1st part 31 is formed comparatively softly, it can be wrapped as a whole.
On the other hand, since the user side portion 12 as a whole has a relatively high elasticity, the user side portion 12 does not bend unnecessarily and can firmly support the user.

  FIG. 5 is an explanatory diagram of the correction portion 77.

The correction portion 77 has the same inclination as the oblique portion 73 of the seating surface side portion 71 and the same as the correction first portion 76 having a joint surface joined to the oblique portion 73 and the plate-like portion 74 of the seating surface side portion 71. It has a modified second portion 75 having a plate shape with a thickness.
When the seat surface side portion 71 and the correction portion 77 are combined, the length in the front-rear direction is the same as that of the user side portion 12.
Of course, when the correction portion 77 is combined, the length in the left-right direction can be shorter than that of the user-side portion 12.

  FIG. 6 is an explanatory diagram of the effect of the correction portion 77.

As shown in FIG. 6, some users sit on the seating surface 101 a of the wheelchair 101 with their bodies tilted.
In that case, the ordinary cushion remains inclined as shown in FIG.
Therefore, by inserting the correction portion 77, the posture can be corrected as shown in FIG.
The specific numbers of the correction portion 77 are 180 mm in the left-right direction and 140 mm in the front-rear direction.
The important point here is that the length in the front-rear direction is shorter than the user side 12 (specifically, 20 mm) even if the seating surface portion 71 and the correction portion are added. Thereby, there is an effect that the correction portion 77 can be easily put in and out.
FIG. 6 shows an example of correction when the pelvis is tilted to the left from the front direction. By moving 77 to the left and right within the cushion, the left and right bends of the pelvis can be corrected according to the user.
Moreover, it is also possible for a user to adjust to an appropriate length by cutting to an appropriate length as needed. It is also possible to use only the attachment 77.

FIG. 7 is an explanatory diagram of another attachment 79.
FIG. 8 is an explanatory diagram of the effect of the attachment 79.

The attachment 79 is used in addition to the seat surface side portion 71.
The attachment 79 has, for example, a rectangular parallelepiped shape. Of course, it is also possible to make the left and right direction of the seat surface side portion 71 shorter. Further, if necessary, the user can cut to an appropriate length by himself / herself and adjust to an appropriate length.
As a result, the user's thigh can be forcibly opened to some extent to stabilize the user's posture, and troubles such as stuffiness due to the thigh being always in contact can be prevented.
It is also possible to remove the seating surface side portion 71 and use only the attachment 79.

<Configuration and Effect of Embodiment>
The wheelchair cushion 1 is provided on the user side, is provided with a highly breathable, non-absorbable material on the user side portion 12 and the wheelchair seat surface 101a side. And a seat surface side portion 71 formed of a waterproof material and a cover 91 that accommodates at least the user side portion 12 or the seat surface side portion 71 therein.
Since it has such a structure, the novel cushion for wheelchairs can be provided.

The user side portion 12 and the seating surface side portion 71 are not fixed, and are formed so as to be separated only by being taken out from the cover 91.
Since it has such a configuration, it is possible to wash the entire body and to easily manufacture a custom-made wheelchair cushion 1 tailored to the user.

The seat surface side portion 71 has an oblique portion 73 whose thickness in the vertical direction becomes thinner as going from the front direction of the wheelchair to the rear direction.
Since it has such a configuration, it is possible to increase the holding force with respect to the user's buttocks (buttock) compared to the conventional case and to maintain a stable posture.

The oblique portion 73 is formed so as to move away from the user side portion 12.
Since it has such a configuration, it is possible to increase the holding power of the user's buttocks (buttock) compared to the conventional case and to maintain the posture.

The user-side portion 12 includes a first portion 31 and a second portion 51, and the second portion 51 has the same length as the first portion 31 in the front-rear direction and the left-right direction. The first portion 31 has a higher repulsive force than the first portion 31.
Since it has such a structure, the part side which contact | abuts a user is soft and can hold | maintain firmly.

The user side portion 12 is formed of a three-dimensional network structure.
Since it has such a configuration, it becomes possible to prevent stuffiness with high ventilation.

The correction portion 77 has a correction first portion 76 having a joint surface with the same inclination as the oblique portion 73, and the seat surface side when the correction first portion 76 is joined to the oblique portion. So that the length in the front-rear direction of the portion and the modified first portion is shorter than the length in the front-rear direction of the user-side portion,
A modified second portion 75 formed.
Since it has such a structure, it becomes possible to maintain an attitude | position effectively also with respect to the user who sits diagonally.

The wheelchair cushion 1 includes a user side portion 12 provided on the user side, a seat surface side portion 71 provided on the wheelchair seat surface side 101a, and a cover that accommodates the user side portion 12 and the seat surface side portion 71 therein. 91, and the seating surface side portion 71 has an oblique portion 73 whose thickness in the vertical direction becomes thinner as going from the front direction of the wheelchair to the rear direction.
Since it has such a structure, the novel cushion for wheelchairs can be provided.

The oblique portion 73 is formed so as to move away from the user side portion 12.
Since it has such a configuration, it is possible to increase the holding power of the user's buttocks (buttock) compared to the conventional case and to maintain the posture.

The wheelchair cushion 1 includes a user side portion 12 provided on the user side, a seat surface side portion 71 provided on the wheelchair seat surface side 101a, and a cover that accommodates the user side portion 12 and the seat surface side portion 71 therein. 91, the user side portion 12 has a first portion 31 and a second portion 51, and the first portion 31, the second portion 51, the seating surface side portion 71 and the cover 91 are mutually connected. It is formed so that it can be easily separated.
Since it has such a configuration, it is possible to easily manufacture a custom-made wheelchair cushion 1 tailored to the user.

1: Cushion for wheelchair 11: Cushion content part 12: User side part 31: First part 51: Second part 71: Seat surface side part 73: Part 73: Part 74: Plate-like part 75: Modified second part 76: First corrected portion 77: Corrected portion 79: Attachment 91: Cover 93: Fastener portion 95: Fastener fitting 101: Wheelchair 101a: Seat surface

Claims (10)

A user side portion that is provided on the user side and has a high air permeability and is formed of a material having non-water absorption;
It is provided on the wheelchair seat side,
With higher frictional resistance than the user side part,
Waterproof,
A seat surface side portion formed of a material;
A cover that accommodates at least the user side portion or the seat surface side portion;
A cushion for wheelchairs. It is not fixed between the user side portion and the seat surface side portion,
The cushion for wheelchairs of Claim 1. It forms so that it may isolate | separate only by taking out from the said cover. The seating surface side portion is
The cushion for wheelchairs of Claim 1 or 2 which has the diagonal part which becomes thin in the up-down direction as it goes back from the front of a wheelchair. The oblique portion is
The wheelchair cushion according to claim 3, wherein the cushion is formed so as to move away from the user-side portion. The user side portion has a first portion and a second portion,
The second part has the same length as the first part in the front-rear direction and the left-right direction,
Stacked in a downward position on the first portion,
The cushion for wheelchairs of any one of Claims 2-4 which has higher repulsive force than the said 1st part. The wheelchair cushion according to claim 5, wherein the user side portion is formed of a three-dimensional network structure. Has a correction part,
The correction part is
A modified first part having a joint surface with the same inclination as the oblique part;
When the modified first part is joined to the oblique part,
The length in the front-rear direction of the seating surface side portion and the modified first portion is shorter than the length in the front-rear direction of the user side portion.
The modified second part formed, The wheelchair cushion according to claim 6. A user side portion provided on the user side;
A seat surface side portion provided on the wheelchair seat surface side;
A cover for accommodating the user side portion and the seating surface side portion;
Have
The seating surface side portion is
A cushion for a wheelchair having an oblique portion in which the thickness in the vertical direction decreases as the wheelchair moves from the front to the rear. The oblique portion is
The cushion for wheelchairs of Claim 8. The cushion for wheelchairs of Claim 8 currently formed so that it may leave | separate from the said user side part. A user side portion provided on the user side;
A seat surface side portion provided on the wheelchair seat surface side;
A cover for accommodating the user side portion and the seating surface side portion;
Have
The user side portion has a first portion and a second portion,
The first portion, the second portion, the seating surface side portion, and the cover are formed so as to be easily separated from each other.