JP2017029183A - Body position assisting air pillow - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a body position assisting air pillow capable of holding a user's head in a stable state in whatever seated position the user takes irrespective of the user's degree of hunchback or degree of inclination of the posture.SOLUTION: A body position assisting air pillow 3 is a pillow for assisting a body position that supports the head Ma of a user M. The body position assisting air pillow 3 includes a first elastic body 31 on which the head Ma is placed, a second elastic body 32 softer than the first elastic body 31, which supports the first elastic body 31, an air chamber cover 33 that accommodates at least the second elastic body 32 of the first elastic body 31 and the second elastic body 32, in which the internal volume can be changed by compressed air sealed inside, and a control valve 34 arranged on the air chamber cover 33 for introducing/discharging the compressed air. An amount of the compressed air introduced to the air chamber cover 33 is adjusted so that the height H1 is adjusted.SELECTED DRAWING: Figure 1

Description

  The present invention, for example, provides a stable posture that is easily treated when a user (patient) receives medical care such as dental care or when the user receives medical care such as dental care while in a wheelchair. It relates to a postural assistance air pillow used to maintain the body.

Conventionally, as a posture assistance air pillow used when a user is in a wheelchair while receiving a medical treatment such as a dental treatment, for example, a headrest air cushion of a wheelchair auxiliary device described in Patent Document 1 is used. Are known.
The headrest air cushion is an auxiliary tool composed of an air bag that supports the back of the patient's head in a wheelchair. The headrest air cushion includes a plastic bag body that expands into an air pillow shape with filled air, a plug that supplies air into the bag body, and a bag velcro provided on the back of the bag body. It is configured. In the headrest air cushion, a occipital region supporting recess is formed at a portion that supports the occipital region of the user who has been on the wheelchair.

  Moreover, the pillow described in patent document 2 is known as what enabled adjustment of the height of the air pillow by taking in and out of air, for example. The pillow includes an air bag containing air, a height adjusting unit that changes the height of the air bag in the air containing space by taking in and out air, a hose communicating with the air containing space, and a valve device provided in the hose And the 1st elastic body provided in the air accommodation space, and the 2nd elastic body in which the chip | tip urethane was accommodated are provided.

  In addition, as an example of a seat that can be tilted to the right or left by tilting the oral cavity of a user supine on a dental treatment table, for example, a sheet-type pad described in Patent Document 3 is known. Yes. The sheet type pad integrally attaches a pad having an inclined surface to one side of the longitudinal dividing line on the surface of the sheet portion having the same thickness, thereby inclining the posture of the user.

  In addition, air pads are detachably arranged on the left and right sides of the vertical center of the headrest of the medical chair, and an air tube is connected to the left and right air pads to supply and discharge air, thereby forming an inclined surface on the air pad surface. As a device for tilting the user's head to the side, for example, a head tilt mechanism of a medical chair described in Patent Document 4 is known.

  In addition, the outer layer is made of a flowable powder-like bead material that can be freely deformed according to the body line, and the inner layer has an inner and outer two-layer structure consisting of an air bag that can be supplied with air from an external air supply source. As a thing provided with an air mat, the dental treatment chair described in patent documents 5 is known, for example.

JP 2012-157390 A (FIGS. 1 and 9) Utility Model Registration No. 3187170 (FIGS. 1 and 2) Japanese Patent Laying-Open No. 2011-36297 (FIGS. 1A and 1B) Japanese Patent Laying-Open No. 2014-50632 (FIG. 12) Japanese Patent Laying-Open No. 2011-182949 (FIG. 2)

  However, the headrest air cushion described in Patent Document 1 is formed entirely in a state in which the occipital region supporting recess is recessed in an arc shape when viewed in cross section, so that the user receives medical treatment of the lower jaw and the upper jaw In addition, there is a problem in that the user's head cannot be set to a height and a posture suitable for various examinations, and the head cannot be supported in a position easy to examine.

  Moreover, although the pillow of patent document 2 can adjust the height of an air pillow by taking in and out air, the shape of the pillow which stabilized the head is hold | maintained, Furthermore, the height of a pillow is further increased. When adjusted, the entire pillow is deflated, and there is a problem that the height of the pillow cannot be adjusted while keeping the head in a stable state.

  Moreover, although the pad of patent document 3, 4 can form an inclined surface in the surface of the air pad formed in right and left independently and can incline a user's back part to a side, a user's There has been a problem that it cannot be tilted according to the degree of the back of the circle or the inclination of the user's posture.

  In addition, the air mat described in Patent Document 5 cannot support a user's head whose posture is unstable in a stable state in a sitting position where the weight of the user's head does not lie on the pillow. was there.

  Therefore, the present invention was invented to solve such a problem, and the user's sitting position can be used regardless of the degree of the back of the user and the degree of inclination of the posture. It is an object to provide a postural assistance air pillow that can hold the head in a stable state.

  In order to solve the above-mentioned problem, a posture assisting air pillow according to the present invention is a posture assisting air pillow that assists a posture supporting a user's head, and includes a first elastic body on which the head is placed; The second elastic body that supports the first elastic body and is softer than the first elastic body and at least the second elastic body among the first elastic body and the second elastic body are accommodated and sealed inside. An air chamber cover whose internal volume is variable by the compressed air, and an adjustment valve that is disposed in the air chamber cover and introduces and releases the compressed air, and the amount of the compressed air introduced into the air chamber cover The height is adjusted by adjusting.

  According to this configuration, the postural assistance air pillow includes a hard first elastic body that supports the head, and a second elastic body that supports the first elastic body and adjusts the height of the pillow softer than the first elastic body. By supporting the head in a stable state so as not to move the head with the hard first elastic body, the head is elastically supported by improving the cushioning property with the soft second elastic body. be able to. In addition, the posture assisting air pillow has an air chamber cover whose inner volume can be changed by compressed air, so that the amount of compressed air introduced into the air chamber cover is adjusted to adjust the height of the posture assisting air pillow. Can be adjusted. The air chamber cover accommodates at least the second elastic body of the first elastic body and the second elastic body, so that the height of the air chamber cover can be changed by adjusting the amount of compressed air introduced into the air chamber cover. The head can always be held from the difference between the hardness of the first elastic body and the hardness of the second elastic body. Therefore, regardless of the degree of the user's back and the inclination of the user's posture, the head can be easily stabilized so that the patient can be treated comfortably regardless of the sitting position. Can be held.

  Further, when the first elastic body and the second elastic body are accommodated in the air chamber cover and the compressed air is introduced into the air chamber cover, the second elastic body expands faster than the first elastic body. When the compressed air is released from the air chamber cover, it is preferable that the second elastic body starts contracting earlier than the first elastic body.

  According to this configuration, the body position auxiliary air pillow accommodates the first elastic body and the second elastic body in the air chamber cover, and the compressed air is introduced into the air chamber cover. When the elastic body expands and the compressed air is discharged from the air chamber cover, the second elastic body contracts faster than the first elastic body. When the compressed air is introduced into the air chamber cover, the body position auxiliary air pillow increases the height of the first elastic body on which the head is placed by expanding the second elastic body earlier than the first elastic body. By expanding the two elastic bodies, it is possible to adjust the height of the first elastic body while maintaining the shape. In addition, when the compressed air is released from the air chamber cover, the body position auxiliary air pillow reduces the height of the first elastic body on which the head is placed by contracting the second elastic body earlier than the first elastic body. By contracting the second elastic body, the first elastic body can be adjusted to a low level while maintaining the shape of the first elastic body.

  In addition, the first elastic body is placed on the left side of the head and the height of the left side of the head increases from the center of the head toward the left side of the head. A right-side placing portion that is placed separately on the right side of the head and increases in height from the center of the head toward the right-side head, and the second elastic body includes the second elastic body, A left side support part that supports the left side mounting part; and a right side support part that supports the right side mounting part, and the air chamber cover includes a left side air chamber that houses the left side mounting part and the left side support part. A right side air chamber cover that separates from the left side air chamber cover and accommodates the right side mounting portion and the right side support portion, and the adjustment valve is introduced into the left air chamber cover. A left adjustment valve that adjusts the amount of compressed air to adjust the height of the left air chamber cover, and a pressure that is introduced into the right air chamber cover. It preferably includes a right adjusting valve for adjusting the height of the right air chamber cover by adjusting the amount of air, the.

According to such a configuration, the first elastic body of the postural assistance air pillow includes the left mounting portion that increases in height from the center portion of the head toward the left head portion, and the right head portion from the center portion of the head portion. The right-side mounting part, which increases in height as it goes to the part, is provided as a separate body, so that the rear head is supported in a state in which the left-side mounting part and the right-side mounting part are fitted. .
Further, the second elastic body of the postural assistance air pillow has a left side support part that supports the left side mounting part and a right side support part that supports the right side mounting part as separate bodies, The left-side mounting part that holds the left side and the right-side mounting part that supports the right side of the head contract to the user's head according to the state. For this reason, the user's head of any posture can be supported in a suitable state.
The air chamber cover of the postural assistance air pillow is composed of a left air chamber cover that accommodates the left placement portion and the left support portion, and a right air chamber cover that accommodates the right placement portion and the right support portion. By being independent of each other, the left air chamber cover and the left air chamber cover have a left air chamber cover and a right air chamber cover, respectively. The amount of compressed air can be adjusted with the left side adjustment valve and the right side adjustment valve so as to have a shape suitable for the posture of the head.

  In addition, the first elastic body has a raised portion on which the basin depression of the head is placed, and supports the upper side of the head relative to the depression of the basin, and has a height as it goes upward from the ridge. A first inclined portion that is inclined so as to be lower, and a second inclined portion that supports a lower side of the head than the depression of the tray and becomes lower as it goes to the lower side of the raised portion. It is preferable that the first inclined portion and the second inclined portion have different inclination angles.

According to such a configuration, the first elastic body includes a raised portion on which the recess of the tray at the head is placed, a first inclined portion that is inclined so as to be lowered upward from the raised portion, and a lower portion from the raised portion to the lower side. By having the second inclined portion inclined so as to be, for example, when the user receives medical care of the lower jaw, the inclined portion having the smaller inclination (the first inclined portion or the second inclined portion). Supporting the user's occipital region and supporting the user's cervical vertebra side with the inclined portion (second inclined portion or first inclined portion) having the larger inclination so that the user faces downward. Therefore, it is possible to make the lower jaw easy to receive medical care.
In addition, the posture assisting air pillow supports the user's occipital region with the inclined portion having the larger inclination and supports the user's cervical vertebra side with the inclined portion having the smaller inclination when the user receives medical care for the upper jaw. By arranging in this manner, the user can be supported so as to face upward, so that the upper jaw can be easily treated.

  According to the posture assisting air pillow according to the present invention, it is possible to hold the user's head in a stable state in any sitting position regardless of the degree of the back of the user and the degree of inclination of the posture. it can.

It is a schematic side view which shows an example of the use condition of the postural assistance air pillow which concerns on this invention. It is a perspective view which shows the state of the body posture assistance air pillow attached to the wheelchair assistance device. It is a perspective view which shows a state when the body posture auxiliary | assistance air pillow is seen from diagonally forward. It is a perspective view which shows a state when seeing a body posture auxiliary | assistance air pillow from diagonally backward. It is a perspective view which shows the 1st elastic body and 2nd elastic body which removed the air chamber cover. It is a cross-sectional view of a postural assistance air pillow. It is a left view of a postural assistance air pillow. It is a side view which shows a state when arrange | positioning and accommodating between the lower frame body and upper frame body of the body posture assistance tool which folded the body posture assistance air pillow of the crushed state. It is a figure which shows the modification of the body posture assistance air pillow which concerns on this invention, (a) is a side view which shows the state of the body posture assistance air pillow when receiving medical treatment of the upper jaw, (b) is when receiving medical treatment of the lower jaw It is a side view which shows the state of a body posture assistance air pillow.

Next, with reference to FIGS. 1-8, an example of the body posture assistance air pillow which concerns on embodiment of this invention is demonstrated. Note that the posture assisting air pillow 3 according to the present invention includes the teeth and nose of the user M of the back, the user M such as an elderly person whose muscle strength is weakened and the waist is bent, and the user M of a general patient. , Suitable for use when visiting the mouth, eyes, ears, etc. during a visit or when a cared person has a meal. The case of receiving will be described as an example. Further, the posture assisting air pillow 3 is attached to the wheelchair 1, chair, seat bag of seat, bed, etc., and is used when the posture of the user M is held and stabilized in a posture that is easy to receive medical examination. However, the case where it is used for the wheelchair 1 will be described below as an example.
First, before explaining the postural assistance air pillow 3, the wheelchair 1 and the postural assistance device 2 will be explained.

<Wheelchair>
As shown in FIG. 1, the wheelchair 1 moves by placing a user M such as a patient outdoors or indoors in a building, and the model is not particularly limited. The wheelchair 1 includes a large type, a medium type, a small type, a sports type, a Japanese-style room, an electric chair, and the like depending on the type, and any of them may be used. The wheelchair 1 has a backrest 12 on a body frame 11 that supports wheels.

<Position assist device>
As shown in FIG. 1, the posture assisting device 2 is an apparatus for supporting the posture of the user M on the wheelchair 1 in a stable state so as to be easily diagnosed when a doctor or the like treats the user M, for example. It is. The posture assisting device 2 includes a posture assisting air pillow 3 described later and a back support 4 (see FIG. 2) for attaching the posture assisting air pillow 3 to the wheelchair 1. The body posture assisting device 2 is an optimal device especially when a user M whose back is bent roundly due to a circular back or an elderly user M whose back is bent receives medical care at home.

<Position assisting air pillow>
The body position auxiliary air pillow 3 is an auxiliary pillow for assisting the body posture of supporting the head M of the user M. The body position auxiliary air pillow 3 is attached to the wheelchair 1 via the back support 4 or directly attached to the backrest portion 12 of the wheelchair 1 having the backrest portion 12 having a long vertical length. It is used by being arranged on the rear side of the rear head Mb of M or the like.

  As shown in FIGS. 3 and 4, the postural assistance air pillow 3 includes a first elastic body 31 on which the head Ma of the user M (see FIG. 1) is placed and a second elastic body 31 that supports the first elastic body 31. An elastic body 32, an air chamber cover 33 that accommodates the first elastic body 31 and the second elastic body 32, an adjustment valve 34 disposed in the air chamber cover 33, and a belt 35 attached to the air chamber cover 33; ,have. The body position auxiliary air pillow 3 includes a first elastic body 31 and a second elastic body 32 that are made of a soft elastic body that is compressed into a depressed state when the back Mb of the user M is supported. .

  The posture assisting air pillow 3 adjusts the heights H1 and H2 (see FIG. 6) of the posture assisting air pillow 3 by opening and closing the adjustment valve 34 and adjusting the amount of compressed air introduced into the air chamber cover 33. Can be done. As shown in FIGS. 3 and 4, the posture assisting air pillow 3 is expanded to an appropriate height H1, H2 (see FIG. 6) by filling the amount of compressed air in the air chamber cover 33 as shown in FIGS. Let it be used. Further, as shown in FIG. 8, the postural assistance air pillow 3 is folded in two after the medical examination by opening the adjustment valve 34, extracting the air in the air chamber cover 33, and compressing it into a folded state. It is inserted into the back support 4 and stored.

<First elastic body>
As shown in FIG. 5, the first elastic body 31 is a sponge-like elastic body that elastically supports the head Ma of the user M (see FIG. 1) from the rear side. The first elastic body 31 is separate from the left placement portion 311 and the left placement portion 311 for placing and supporting the left side of the head Ma of the user M, and places the right side of the head Ma. And a right-side mounting portion 312 that supports the configuration. The first elastic body 31 has a left-side mounting portion 311 and a right-side mounting portion 312 that are symmetrically arranged side by side with an interval through which a partition wall 333 (see FIG. 6) of the air chamber cover 33 is interposed. In the state, it is joined to the front surface of the second elastic body 32. The pair of left and right first elastic bodies 31 are formed on the front surface so as to be inclined so as to be lowered from the central portion in the vertical direction when viewed from the side, and are lowered from the left and right end portions 31 a toward the central portion 31 b. The inclined surfaces 31c and 31d are formed so as to be inclined.

The first elastic body 31 and the second elastic body 32 are made of a synthetic sponge made of a synthetic resin such as porous soft polyurethane having countless fine holes inside. For this reason, when the pressing force is not applied, the first elastic body 31 and the second elastic body 32 are in a state where the holes are filled with air and expanded.
In addition, when the first elastic body 31 and the second elastic body 32 are compressed by being loaded with a pressing force, the air in the hole is pushed out and compressed, and when released from the state pressed by the pressing force. It is designed to return to its original shape due to the elasticity of the sponge.

The first elastic body 31 is made of, for example, a hard urethane material having a higher sponge hardness than the second elastic body 32. The hard first elastic body 31 of the surface layer plays a role of holding the head M of the user M in a stable state by the V groove 3d.
The second elastic body 32 is made of, for example, soft urethane and is made of a material having a sponge hardness lower than that of the first elastic body 31. The soft second elastic body 32 at the inner layer portion functions to adjust the pillow height.
For this reason, the 1st elastic body 31 and the 2nd elastic body 32 form the laminated body which has arrange | positioned the sponge from which hardness differs in two layers.

As shown in FIG. 6, the left mounting portion 311 extends from the central portion to the left end so that the height H3 increases from the central portion of the head Ma toward the left temporal portion in plan view. Inclined so that it rises.
The right mounting part 312 is inclined so as to rise from the center part to the right end part so that the height H4 increases from the center part of the head Ma to the right head part in plan view. Is formed.
For this reason, the left mounting part 311 and the right mounting part 312 are formed symmetrically with the partition wall 333 as the center. The left mounting portion 311 and the right mounting portion 312 are adjacent to each other so as to form a V-groove portion 3d in which the central portion 31b is depressed so as to support the occipital region Mb as a whole in plan view (transverse cross-sectional view). Has been placed.

<Second elastic body>
The second elastic body 32 is a pair of left and right members made of an elastic member softer than the first elastic body 31, and is joined to the rear surface of the first elastic body 31. The second elastic body 32 is made of a thick plate-shaped elastic member that matches the rear surface of the first elastic body 31, and is entirely formed to have a uniform thickness. The second elastic body 32 includes a left support portion 321 that supports the left placement portion 311 and a right support portion 322 that supports the right placement portion 312.

<Air chamber cover>
As shown in FIGS. 3 and 4, the air chamber cover 33 is a hermetically sealed bag body that houses the first elastic body 31, the second elastic body 32, and compressed air, and includes the first elastic body 31 and the second elastic body 31. It is a cover member that covers the elastic body 32. The air chamber cover 33 includes a left air chamber cover 331 that forms an air chamber formed on the left side, a right air chamber cover 332 that forms an air chamber formed on the right side, a left air chamber cover 331, and a right air chamber cover. A partition wall 333 for partitioning 332, a belt mounting piece 334 having a belt insertion hole 334a, and an adjusting valve 34 to be described later are configured. The air chamber cover 33 has a variable internal volume depending on the amount of compressed air filled therein. The air chamber cover 33 is formed, for example, by thermocompression bonding a plurality of sheets made of vinyl chloride having a glossy surface with a thickness of about 0.2 mm.

  The air chamber cover 33 accommodates the first elastic body 31 and the second elastic body 32. When compressed air is introduced into the air chamber cover 33 in the air chamber cover 33, the air chamber cover 33 is faster than the first elastic body 31. When the elastic body 32 starts to expand and the compressed air is discharged from the air chamber cover 33, the second elastic body 32 starts to contract faster than the first elastic body 31.

  The left air chamber cover 331 is an airtight bag body portion in which the first elastic body 31 and the second elastic body 32 that are arranged on the left side and have different sponge hardness and compressed air are accommodated. The left air chamber cover 331 forms a surface portion of the left half of the body posture assisting air pillow 3 and forms an independent storage space for storing the left first elastic body 31 and the second elastic body 32 from the atmosphere. It is a member to be formed. The left air chamber cover 331 is formed so as to cover the left outer surface of the first elastic body 31 and the second elastic body 32 joined in a stacked state. In other words, the left air chamber cover 331 forms an accommodation space for accommodating the left placement part 311 and the left support part 321. For this reason, the left air chamber cover 331 is formed in substantially the same shape as the joined body of the left first elastic body 31 and the second elastic body 32. The left-side air chamber cover 331 and the right-side air chamber cover 332 are formed so as to swell when compressed air is filled to form a half body of an air pillow, and to shrink and shrink when the air is extracted.

  The right air chamber cover 332 is an airtight bag body portion that is disposed on the right side and accommodates the first elastic body 31 and the second elastic body 32 having different sponge hardness and compressed air. The right air chamber cover 332 forms a surface portion of the right half of the body posture assisting air pillow 3 and forms an independent storage space for storing the right first elastic body 31 and the second elastic body 32 while blocking them from the atmosphere. It is a member to be formed. The right air chamber cover 332 is formed in a shape that covers the outer peripheral surfaces of the first elastic body 31 and the second elastic body 32 on the right side that are joined in a stacked state. In other words, the right air chamber cover 332 is separate from the left air chamber cover 331 and forms an accommodation space for accommodating the right placement portion 312 and the right support portion 322. For this reason, the right air chamber cover 332 is formed in substantially the same shape as the outer peripheral surface of the joined body of the first elastic body 31 and the second elastic body 32 on the right side.

  As shown in FIG. 6, the partition wall 333 is a sheet-like member disposed in a state where the left air chamber cover 331 and the right air chamber cover 332 are joined and partitioned into two sealed spaces. The partition wall 333 is formed of a pentagonal vinyl chloride sheet that forms the central end surface of the joined body of the first elastic body 31 and the second elastic body 32.

  The belt attachment pieces 334 are a pair of left and right projecting pieces that are triangular (substantially flap-shaped) when viewed from the front and are formed to project from the left and right ends on the rear side of the air chamber cover 33. The belt attachment piece 334 has a rectangular belt insertion hole 334a that is elongated in the vertical direction.

<Regulating valve>
The regulating valve 34 is a valve for introducing and releasing compressed air into the left air chamber cover 331 and the right air chamber cover 332, respectively. The regulating valve 34 is an air stop plug that closes and opens a supply port for injecting and discharging air, and is integrally formed of a synthetic resin on the left and right side surfaces of the left air chamber cover 331 and the right air chamber cover 332. The adjustment valve 34 adjusts the amount of compressed air introduced into the left air chamber cover 331 to adjust the height H11 of the left air chamber cover 331 and the compressed air introduced into the right air chamber cover 332. And a right adjustment valve 342 that adjusts the amount to adjust the height H12 of the right air chamber cover 332.

<Belt>
As shown in FIGS. 4 and 6, the belt 35 is a fixing member for fixing the postural assistance air pillow 3 to the back support 4. The belt 35 includes a fixed belt main body 35a whose base end portion is inserted into the belt insertion holes 334a of the left and right belt mounting pieces 334, snap buttons 35b which are provided at both end portions of the belt main body 35a and can be attached to and detached from each other. It is configured with. The belt 35 may be any belt as long as it can fix the postural assistance air pillow 3 to the back support 4, the backrest 12 of the wheelchair 1, etc. The shape, model, material, etc. are not particularly limited.

As shown in FIG. 6, the belt main body 35a is made of rubber, synthetic resin, synthetic fiber, or leather formed in a belt shape.
As shown in FIG. 1, the snap button 35 b detachably engages and disengages the belt 35 wound around the back support 4 fixed to the backrest portion 12 of the wheelchair 1, so that the postural assistance air pillow 3 is attached to the back support 4. It is a member for holding. The snap button 35b only needs to be capable of attaching and detaching the belt 35, and may be a fastener such as a hook-and-loop fastener or a buckle.

<Back support>
The back support 4 is an auxiliary device that is attached to the backrest portion 12 of the wheelchair 1 by the support attachment belt 46 when the user M receives medical care. As shown in FIG. 2, the back support 4 includes a frame body 41 formed in a rectangular shape, a plurality of frames 42 forming the frame body 41, a stretched cloth body 43 stretched on the frame body 41, An erection belt 44 provided on the body 41 and a cover 45 covering the frame body 41 are provided. The back support 4 is stored in a storage bag (not shown) with the hinge portion 41a folded when not medical treatment. In addition, the back support 4 should just be what can be attached to the wheelchair 1, and can attach the body posture assistance air pillow 3, The shape, a model, a material, etc. are not specifically limited.

The frame body 41 is formed in a rectangular shape by connecting a plurality of frames 42. The frame 41 is formed in a rectangular shape when the frame 42 is connected so as to be foldable and unfolded.
The frame 42 is made of a pipe-like or plate-like aluminum alloy formed so that the frame body 41 can be folded in two. The frame 42 connects two members formed in a substantially U shape to the hinge portion 41a so as to be rotatable.
The tension cloth body 43 and the erection belt 44 are made of cloth such as synthetic fiber and are stretched on the frame body 41.
The cover 45 is a plastic bag-like member, and is provided so as to be covered from the upper side and the lower side of the back support 4.

[Action]
Next, the operation of the postural assistance air pillow according to the embodiment of the present invention will be described by taking as an example a case where the user M who has been on the wheelchair 1 receives dental care using the postural assistance device 2.

  As shown in FIG. 8, when not in use, the posture assisting air pillow 3 opens the adjustment valve 34 to compress and compress the compressed air in the air chamber cover 33 (the left air chamber cover 331 and the right air chamber cover 332). The regulating valve 34 is closed in a state where the first elastic body 31 and the second elastic body 32 (see FIGS. 3 and 4) inside are released and compressed, and is arranged between the frames 42 of the folded back support 4. Are stored.

  When the adjustment valve 34 is closed in a compressed state, the posture assisting air pillow 3 is maintained in a compressed state because the outside air does not enter the left air chamber cover 331 and the right air chamber cover 332. Since the posture assisting air pillow 3 is stored in a storage bag (not shown) together with the back support 4 in a compressed state, it does not take up a special occupied space.

  When the user M receives medical care, the folded back support 4 is expanded, taken out from the back support 4, and the regulating valve 34 is opened. Then, as shown in FIG. 6, in the body position auxiliary air pillow 3, the first elastic body 31 forming the internal hard layer swells and returns to its original shape. Thereafter, the second elastic body 32 that is softer than the first elastic body 31 swells and returns to its original shape. The air chamber cover 33 draws in outside air from the regulating valve 34 with these elastic forces, and expands the air chamber cover 33 to its original shape. The air chamber cover 33 sends compressed air from the adjustment valve 34 into the left air chamber cover 331 and the right air chamber cover 332 by a compressor or the like, and expands the air chamber cover 33 to an appropriate air pressure state.

  Next, as shown in FIG. 1, the back support 4 is attached to the backrest portion 12 of the wheelchair 1 by a support attachment belt 46. Then, the backrest portion 12 of the wheelchair 1 is in a state of being added in the height direction by the back support 4, and the user M riding on the wheelchair 1 is further increased by the amount that the backrest portion 12 extends long upward. It can be supported in a stable state.

  The body position auxiliary air pillow 3 filled with compressed air and expanded on the upper portion of the back support 4 is adjusted in the vertical direction according to the position of the head M of the user M and attached with a belt 35. Subsequently, the occipital region Mb of the user M riding on the wheelchair 1 is supported by being brought into contact with the V-groove portion 3 d of the postural assistance air pillow 3.

  In this case, the body position auxiliary air pillow 3 includes a hard first elastic body 31 and a second elastic body 32 that supports the first elastic body 31 and adjusts the height H1 of the pillow softer than the first elastic body 31. By having it, the inclined surface 31c, 31d (see FIG. 3) of the first elastic body 31 on the hard sponge side (surface layer side) can be supported in a stable state so as not to move. Further, the second elastic body 32 of the layer for adjusting the pillow height on the soft sponge side can improve the cushioning property and elastically support the head Ma.

  As shown in FIG. 6, the posture assisting air pillow 3 is accommodated by opening and closing the right and left regulating valves 34 to extract or supply compressed air in the left air chamber cover 331 and the right air chamber cover 332. The left and right air chambers whose inner volume can be varied by compressed air by adjusting the air amount in the left air chamber cover 331 and the right air chamber cover 332 that are inflated to the posture of the user M The cover 33 can be adjusted so that each has an appropriate hardness and height H1. In this case, even if the posture assisting air pillow 3 adjusts the amount of compressed air introduced into the air chamber cover 33 and changes the height H1, the first elastic body 31 on the surface side in the air chamber cover 33 is changed. From the difference between the hardness and the hardness of the second elastic body 32, the head Ma can always be held in a stable state.

  The second elastic body 32 in the rear layer is a hard material that elastically supports the left and right first elastic bodies 31 by adjusting the amount of air in the left air chamber cover 331 and the right air chamber cover 332 with the adjusting valve 34. By adjusting the height and the degree of crushing when pressed, the left and right heights H1 of the pillow and the degree of inclination can be adjusted.

The body position auxiliary air pillow 3 accommodates the first elastic body 31 and the second elastic body 32 in the air chamber cover 33, and the compressed air is introduced into the air chamber cover 33 before the first elastic body 31. When the elastic body 32 expands and the compressed air is discharged from the air chamber cover 33, the second elastic body 32 contracts faster than the first elastic body 31.
For this reason, when the compressed air is introduced into the air chamber cover 33, the body position auxiliary air pillow 3 expands the second elastic body 32 earlier than the first elastic body 31, thereby placing the head Ma on the first. The height of the elastic body 31 can be adjusted higher by expanding the second elastic body 32 while maintaining the shape of the first elastic body 31.
Further, when the compressed air is released from the air chamber cover 33, the body position auxiliary air pillow 3 contracts the second elastic body 32 earlier than the first elastic body 31, whereby the first elasticity for placing the head Ma is placed. The height of the body 31 can be adjusted to be low while maintaining the shape of the first elastic body 31 by contracting the second elastic body 32.

Further, the first elastic body 31 of the posture assisting air pillow 3 includes a left-side placement portion 311 that increases in height H3 from the center portion of the head Ma toward the left-side head portion, and a center portion of the head Ma. The right mounting portion 312 whose height H4 increases toward the right head portion is provided as a separate body, so that the left mounting portion 311 and the right mounting portion 312 have the rear head portion Mb. Supported in a fitted state.
In addition, the second elastic body 32 of the body position assisting air pillow 3 is composed of a left support portion 321 that supports the left placement portion 311 and a right support portion 322 that supports the right placement portion 312 as separate bodies. Thus, the left-side placement unit 311 that holds the left side of the head Ma and the right-side placement unit 312 that supports the right side of the head Ma contract to the user Ma's head Ma according to the state. For this reason, it can support in the state suitable for the head Ma of the user M of all positions.

  Further, the posture assisting air pillow 3 can correspond to the right and left inclination of the user M and the left and right direction of the head Ma regardless of the degree of the back of the user M, and any sitting position (posture) ), The user Ma's head Ma can be easily supported in a stable state.

  When the medical treatment is completed, the back support 4 attached to the wheelchair 1 is removed from the wheelchair 1, and the postural assistance air pillow 3 is removed from the back support 4. The posture assisting air pillow 3 opens the left and right adjustment valves 34 and discharges the compressed air in the left air chamber cover 331 and the right air chamber cover 332 to compress the entire posture assisting air pillow 3. The body position auxiliary air pillow 3 is inserted between the frames 42 of the back support 4 in a folded state folded around the hinge portion 41a, and is stored together with the back support 4 in a storage bag. For this reason, the posture assisting air pillow 3 does not take an installation space, so it is easy to store and carry easily.

[Modification]
The present invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the technical idea. The present invention extends to these modifications and changes. Of course. In addition, the already demonstrated structure attaches | subjects the same code | symbol and abbreviate | omits the description.
FIG. 9 is a view showing a modified example of the postural assistance air pillow according to the present invention, wherein (a) is a side view showing the state of the postural assistance air pillow when receiving the upper jaw medical treatment, and (b) is the lower jaw medical examination. It is a side view which shows the state of the postural assistance air pillow when receiving.

  In the said embodiment, as an example of the body posture assistance air pillow 3, as shown in FIG. 7, the surface which supports the back head Mb of the user M is a vertical cross-sectional view and a side view, and it is vertical from a mountain-shaped center site | part. It is not limited to what consists of the 1st elastic body 31 which has the inclined surfaces 31c and 31d like the isosceles triangle equally inclined.

  As shown in FIG. 9 (a), the first elastic body 31A of the postural assistance air pillow 3A has a raised portion 3a on which the basin depression Md of the head Ma is placed, and the head Ma more than the basin depression Md. A small inclined portion 3c (first inclined portion) that supports the upper side and inclines so that the height decreases from the raised portion 3a toward the upper side, and supports the lower side of the head Ma from the recess Md of the tray. A large inclined portion 3b (second inclined portion) that is inclined so that the height decreases from the raised portion 3a toward the lower side, and the inclination angles of the small inclined portion 3c and the large inclined portion 3b are different. You may form in.

  In this case, for example, the raised portion 3 a is arranged at the highest position from the back support 4 when the user Ma's head Ma is supported. The large inclined portion 3b is formed to be inclined downwardly away from the raised portion 3a to the user M. The small inclined portion 3c is formed so as to be inclined more gently than the large inclined portion 3b in the upward direction away from the raised portion 3a to the user M (the direction opposite to the inclined direction of the large inclined portion 3b).

  As shown in FIG. 9 (a), when medical examination of the lower jaw of the user M is performed using the postural assistance air pillow 3A, the user M's occipital region Mb is supported by the small inclined portion 3c, and the large inclined portion 3b. Then, the posture assisting air pillow 3A is arranged so as to support the cervical spine Mc side of the user M. If the posture assisting air pillow 3A is configured in this way, when the user M receives medical examination of the lower jaw, the lower jaw faces in the lower direction, so that the lower jaw can easily receive medical examination of the lower jaw.

Further, as shown in FIG. 9 (b), when the user M receives medical treatment of the upper jaw using the postural assistance air pillow 3A, the user M's occipital region Mb is supported by the large inclined portion 3b, and the small inclination is provided. The posture assisting air pillow 3A is arranged so that the cervical vertebra Mc side of the user M is supported by the portion 3c. If the posture assisting air pillow 3A is configured in this manner, when the user M receives medical care for the upper jaw, the upper jaw faces upward, so that the medical care for the upper jaw can be easily received. Further, in this case, the posture assisting air pillow 3A supports the user M's cervical vertebra Mc with the most swollen raised portion 3a, so that the user M can easily open his / her mouth. can do.
As shown in FIGS. 9 (a) and 9 (b), the posture assisting air pillow 3A forms a large inclined portion 3b and a small inclined portion 3c having different inclination angles, so that the posture assisting air pillow 3A is vertically oriented. By using it upside down, the user M can be in a posture suitable for the part to receive medical care. Further, the posture assisting air pillow 3A is configured in this manner, so that the posture assisting air pillow 3A is inserted into the gap between the head Ma and the back support 4 so as not to interfere with the shoulder of the user M. Can be arranged.

[Other variations]
For example, the air chamber cover 33 shown in FIG. 6 has been described with respect to the case where the left air chamber cover 331 and the right air chamber cover 332 accommodate the two members of the first elastic body 31 and the second elastic body 32, respectively. However, it is not limited to this. The air chamber cover 33 is a cover that accommodates at least the second elastic body 32 of the first elastic body 31 and the second elastic body 32, and whose internal volume can be changed by compressed air sealed inside. May be.
In that case, the air chamber cover 33 defines a partition wall that partitions and partitions into a first elastic body housing portion that houses the first elastic body 31 and a second elastic body housing portion that houses the second elastic body 32. Two air chambers are provided and sealed in 33. And the adjustment valve 34 is provided in each side wall of a 1st elastic body accommodating part and a 2nd elastic body accommodating part. By forming the air chamber cover 33 in this manner, the first elastic body 31 and the second elastic body 32 may be arranged separately on the upper side and the lower side.

  When the air chamber cover 33 is partitioned by forming the first elastic body accommodating portion on the upper side and forming the second elastic body accommodating portion on the lower side, the second elastic body accommodating portion includes a fine elastic body or dust. Or an elastic body such as a small chip-like sponge.

3, 3A Postural assistance air pillow 3a Raised part 3b Large inclined part (second inclined part)
3c Small slope (first slope)
31, 31A First elastic body 32 Second elastic body 33 Air chamber cover 34 Adjustment valve 311 Left mounting portion 312 Right mounting portion 321 Left support portion 322 Right support portion 331 Left air chamber cover 332 Right air chamber cover 341 Left adjustment Valve 342 Right adjustment valve H1 Height of posture support air pillow H2 Height of left air chamber cover H3 Height of right air chamber cover M User Ma Head Mb Back head Mc Cervical spine Md Basin depression

Claims (4)

A posture assisting air pillow that assists the posture supporting the user's head,
A first elastic body on which the head is placed;
A second elastic body that supports the first elastic body and is softer than the first elastic body;
An air chamber cover that accommodates at least the second elastic body of the first elastic body and the second elastic body, and whose internal volume is variable by compressed air sealed inside;
An adjustment valve disposed on the air chamber cover and introducing and releasing the compressed air;
Adjusting the height by adjusting the amount of compressed air introduced into the air chamber cover;
Postural assistance air pillow characterized by. Storing the first elastic body and the second elastic body in the air chamber cover;
When the compressed air is introduced into the air chamber cover, the second elastic body starts expanding earlier than the first elastic body,
When the compressed air is released from within the air chamber cover, the second elastic body starts contracting earlier than the first elastic body,
The postural assistance air pillow according to claim 1, wherein: The first elastic body is placed on the left side of the head, and the left-side placement part whose height increases from the center of the head toward the left side of the head; and
A right-side mounting part that is separate from the left-side mounting part and that is placed on the right side of the head and increases in height from the center of the head toward the right-side head;
The second elastic body includes a left support portion that supports the left placement portion;
A right side support part for supporting the right side mounting part,
The air chamber cover includes a left air chamber cover that houses the left mounting portion and the left support portion;
A right side air chamber cover that separates from the left side air chamber cover and accommodates the right side mounting portion and the right side support portion; and
The adjustment valve adjusts the amount of compressed air introduced into the left air chamber cover to adjust the height of the left air chamber cover;
A right adjustment valve that adjusts the amount of compressed air introduced into the right air chamber cover and adjusts the height of the right air chamber cover;
The postural assistance air pillow according to claim 2, wherein: The first elastic body is a raised portion for placing a recess in the head tray,
A first inclined portion that supports the upper side of the head from the recess of the tray and is inclined so that the height decreases from the raised portion toward the upper side;
A second inclined portion that supports the lower side of the head from the recess of the tray and is inclined so that the height decreases from the raised portion toward the lower side,
The inclination angles of the first inclined portion and the second inclined portion are different,
The postural assistance air pillow according to any one of claims 1 to 3, characterized in that:

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