JP2012148609A - Support pad structure for infants - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support pad structure for infants that properly holds trunks of infants.SOLUTION: The support pad structure 31 for infants includes: a base 34 that spreads in horizontal and longitudinal directions; an ischium support pad 32 that includes two raised areas 32l and 32m arranged separately in the horizontal direction, in a front part on the base 34, and in which a space in the horizontal direction of the right-and-left pair of the raised areas increases with the distance forward; and a waist support pad 33 that includes two raised areas 33l and 33m arranged separately in the horizontal direction, in a rear part on the base 34, and in which a space in the horizontal direction of the right-and-left pair of the raised areas increases with the distance rearward.

Description

  The present invention relates to a pad that is attached to an infant seat such as a baby carriage and supports an infant's body in an appropriate posture.

  Conventionally, as a pad attached to a baby carriage or the like to support an infant's body in an appropriate posture, for example, described in Japanese Patent Application Laid-Open No. 2007-22128 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2007-99201 (Patent Document 2). The cushion is known. The cushions described in Patent Document 1 and Patent Document 2 are provided with a head pad, a waist pad, and a buttocks pad that are attached to a seat of a baby carriage and have an appropriate posture maintaining effect so that the position of the infant does not shift. The waist pad is formed by a pair of left and right side support portions that protrude in a mountain shape and support the infant from both the left and right sides. The heel pad is a pair of knee supports that support the infant's buttock at the heel support part protruding at the center of the buttock pad in the left-right direction and project larger than the heel support part at the left and right ends of the buttock pad. It is configured to support the infant's knee from outside.

Japanese Patent Laid-Open No. 2007-22128 JP 2007-99201 A

  By the way, as a result of intensive studies, the inventor of the present invention has come to realize that it is important to properly hold the infant's trunk for the healthy growth of the infant. That is, the vertebrate trunk is supported by the vertebral column. The human spinal column is composed of the cervical vertebrae, the thoracic vertebrae, the lumbar vertebrae, the sacral vertebrae (or sacrum), and the caudal vertebrae (or coccyx) in order from top to bottom. The hipbone is connected to the left and right sides of the sacrum, and the hipbone, sacrum, and coccyx constitute the pelvis. The hipbone is composed of the iliac, sciatic, and pubic bones in order from top to bottom. During sitting, it is the sciatic bone that transmits the infant's weight to the seating surface of the infant seat and supports the infant's trunk.

  Therefore, if the infant's pelvis seated in the infant's seat can be stably held so as to be in an appropriate position and posture, the position and posture of the spine can be determined, and the infant's healthy growth can be promoted. .

  However, in the conventional cushion, the side support portion of the waist pad and the knee support portion of the buttocks pad do not stably hold the infant's pelvis, and only the buttocks support portion of the buttocks pad is the infant. It was only to restrict the forward movement of the buttocks so that it would not fall. For this reason, the above-described conventional cushion cannot properly hold the infant's trunk.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an infant support pad structure that is attached to an infant seat and can appropriately hold the infant's trunk for the healthy growth of the infant. .

  For this purpose, the infant support pad structure according to the present invention includes a base portion that extends in the left-right direction and the front-rear direction, and two raised portions that are formed of an elastic material and are spaced apart from each other in the left-right direction at the front portion on the base portion. Including a sciatic support pad portion for supporting the infant's sciata, and a left-right direction on the rear portion on the base. Lumbar support pad for supporting the pelvic part above the infant's sciatus, which includes two ridges that are spaced apart, and the distance between the pair of left and right ridges increases toward the rear A part.

  According to the present invention, the sciatic support pad portion preferably holds the sciasis of the infant's lower pelvis and the lumbar support pad portion suitably holds the upper pelvis above the infant's sciatic bone. A spine that is held in a proper position and posture and extends upward from the pelvis is also held in a proper position and posture. Therefore, the infant's trunk can be held in an appropriate position and posture in the chair state and the bed state of the infant seat 11.

  The sciatic support pad portion and the lumbar support pad portion may be formed of an elastic material such as urethane foam or sponge, and the elastic modulus (softness) thereof may be the same. The part is formed to be softer than the waist support pad part. According to this embodiment, it is possible to obtain a degree of freedom of movement of the infant's leg while stably holding the infant's pelvis to some extent.

  The pair of left and right raised portions of the sciatic support pad portion is not particularly limited as long as it extends outward in the left-right direction toward the front. Preferably, the pair of left and right ridge lines in the pair of left and right raised portions of the sciatic support pad portion extend in an arc shape so as to wrap around the sciatic receiving space between the pair of left and right raised portions. According to this embodiment, the sciatic support pad portion can more suitably hold the infant's sciatica between the pair of left and right raised portions.

  The pair of left and right raised portions of the waist support pad portion is not particularly limited as long as it extends outward in the left-right direction as it goes rearward. Preferably, the pair of left and right ridge lines in the pair of left and right raised portions of the waist support pad portion extend in an arc shape so as to wrap around the waist receiving space between the pair of left and right raised portions. According to this embodiment, the lower back support pad portion can more suitably hold the pelvic portion above the sciatic bone of the infant between the pair of left and right raised portions.

  The shape of the raised portion of the sciatic support pad portion is not particularly limited, and may be a kamaboko shape, a crescent shape, or an oval shape. Preferably, the raised portion of the sciatic support pad portion is substantially semicircular. According to this embodiment, the shape retention of the raised portion is improved, and the infant's sciatic bone can be more suitably held between the pair of left and right raised portions.

  The shape of the raised portion of the lumbar support pad portion is not particularly limited, and may be a crab shape, a crescent shape, or an oval shape. Preferably, the ridge portion of the lumbar support pad portion is substantially semicircular. According to this embodiment, the shape retention of the raised portion is improved, and the pelvic portion above the infant's ischia can be more suitably held between the pair of left and right raised portions.

  The shape of the base is not particularly limited as long as it connects the sciatic support pad and the lumbar support pad. For example, the shape of the base may be a rectangle extending in the left-right direction and the front-rear direction, or may be a circle extending in the left-right direction and the front-rear direction. Preferably, the base is formed with a notch for receiving the infant's sciatic bone between the pair of left and right raised portions of the sciatic support pad portion. According to this embodiment, since the notch receives the infant's sciatic bone, the sciatic support pad portion can more suitably hold the infant's sciatic bone between the pair of left and right raised portions.

  Alternatively, the base may be formed with a notch for receiving the infant's waist between a pair of left and right raised portions of the waist support pad. According to this embodiment, since the notch receives the baby's waist, the waist support pad portion of the baby can be more suitably held between the pair of left and right raised portions.

  The present invention only needs to have a sciatic support pad portion and a lumbar support pad portion. However, as a preferred embodiment, the recess is arranged rearwardly of the base portion to receive the infant's head. A head pad is further provided. According to this embodiment, the infant's spinal column extends in the front-rear direction so as not to tilt in the left-right direction, and can be held in an appropriate posture. Therefore, the infant's trunk can be suitably held in an appropriate position and posture.

  As described above, the present invention can support the pelvis from a position close to the pelvis of the sitting infant and hold the pelvis in an appropriate position and posture. Therefore, the trunk of the seated infant can be held in an appropriate position and posture, and can contribute to the healthy growth of the infant.

It is a top view which shows the state which laid flat the infant seat which becomes one Example of this invention. It is a top view which shows the state which removed the base sheet from the infant seat of FIG. It is a top view which shows the state which removed and laid flat the infant support pad structure of the Example. It is sectional drawing in IV-IV of FIG. It is sectional drawing in VV of FIG. It is sectional drawing in VI-VI of FIG. It is sectional drawing in VII-VII of FIG. It is sectional drawing in VIII-VIII of FIG. It is sectional drawing in IX-IX of FIG. It is sectional drawing in XX of FIG. It is sectional drawing in XI-XI of FIG.

  Hereinafter, embodiments of the present invention will be described in detail based on examples shown in the drawings.

  FIG. 1 is a plan view showing a state in which an infant seat according to an embodiment of the present invention is laid flat. The infant seat 11 has a seat 11a for supporting the buttocks of the infant from below and a backrest 11b for supporting the back of the infant from the rear, and is fixed to a frame of a baby carriage (not shown). Or you may fix to the childcare apparatus of forms other than baby carriages, such as an indoor bed and a child seat for vehicles.

  The backrest portion 11b can change the reclining angle with respect to the seat portion 11a, and the backrest portion 11b is raised to the front to be in a chair state, and the backrest portion 11b is tilted backward to be in a horizontal bed state as shown in FIG. Also become. For this reason, the seat part side of the infant seat 11 is referred to as the front side, and the backrest part side is referred to as the rear side. Further, in the present specification, the left-right direction means the left side and the right side when viewed from the infant seated on the infant seat 11, and the width direction perpendicular to the front-rear direction described above. A base sheet 14 is attached to the infant seat 11 so as to extend from the seat portion 11a to the backrest portion 11b.

  FIG. 2 is a plan view showing a state in which the base sheet 14 is removed from the infant seat 11 and placed flat. The base sheet 14 is formed of an elastic material having a substantially constant thickness, and has a substantially 8-shaped shape in which a boundary portion between the seat portion 14a and the backrest portion 14b is constricted. And the seat part 14a is formed smaller than the backrest part 14b.

  A recess 15 having substantially the same shape as the base sheet 14 is formed in the central region of the infant seat 11. The base sheet 14 is received in the recess 15 having a substantially constant depth, and is attached to the upper surface of the infant seat 11 as shown in FIG.

  A crotch belt through hole 16 is formed in the seat portion 11a of the infant seat 11 and the seat portion 14a of the base sheet 14, respectively. With the base sheet 14 attached to the infant seat 11, the crotch belt through hole 16 of the base sheet 14 coincides with the crotch belt through hole 16 of the infant seat 11 as shown in FIG.

  A pair of shoulder belt through holes 17 and 17 are formed on the backrest portion 11b of the infant seat 11 and the backrest portion 14b of the base seat 14 at two left and right positions. With the base sheet 14 attached to the infant seat 11, the shoulder belt passage hole 17 of the base sheet 14 coincides with the shoulder belt passage hole 17 of the infant seat 11 as shown in FIG. 1.

  With the base sheet 14 attached to the infant seat 11, a crotch belt and a pair of shoulder belts for restraining the infant's body are inserted into the through holes 16 and 17, respectively. A plurality of pairs of shoulder belt through holes 17 and 17 are formed at intervals in the front-rear direction. Thereby, the position of the shoulder belt can be matched with the physique of an infant that grows with age.

  A head pad 21 made of an elastic material such as urethane foam or sponge is attached and fixed on the backrest portion 14b of the base sheet 14. The head pad 21 supports an infant's head. Of the upper surface of the head pad 21, a left edge portion, a front edge portion, and a right edge portion rise from the upper surface of the head pad 21, and a left raised portion 22, a front raised portion 23, and a right raised portion. 24 are integrally formed. The left bulge portion 22, the front bulge portion 23, and the right bulge portion 24 constitute a continuous bulge portion. Details will be described later.

  A mounting band (not shown) is sewn on the lower surface of the head pad 21, and the mounting band is inserted into the shoulder belt through hole 17 to fix the head pad 21 on the backrest portion 14b. Alternatively, a hook-and-loop fastener is sewn on the lower surface of the head pad 21 and the backrest portion 14b, and the headpad 21 is attached and fixed on the backrest portion 14b by bonding these hook-and-loop fasteners together. The head pad 21 is mounted on the backrest part 14b so that the position in the front-rear direction can be adjusted. Thereby, the attachment position of the head pad 21 can be matched with the physique of an infant growing with age.

  A pelvic pad 31 formed of an elastic material such as urethane foam or sponge is attached and fixed to a boundary portion between the seat portion 14a and the backrest portion 14b on the base sheet 14. The pelvic pad 31 supports the infant's pelvis. A sciatic support pad portion 32 for supporting the infant's sciatic bone is integrally formed at the front portion of the upper surface of the pelvic pad 31, which is two raised portions rising from the upper surface of the pelvic pad 31. A lumbar support pad portion 33 for supporting two bulging portions rising from the upper surface of the pelvic pad 31 and supporting the pelvic portion above the sciatic bone of the infant is integrally formed on the rear portion of the upper surface of the pelvic pad 31. Is done. Both of these pad portions 32 and 33 support the pelvis portion, but the lumbar support pad portion 33 supports the upper portion of the pelvis, and the sciatic support pad portion 32 supports the lower portion of the pelvis so that the position and posture of the pelvis are appropriate. Hold on. Details will be described later.

  An attachment band (not shown) is sewn on the lower surface of the pelvic pad 31. The attachment band is stretched over the boundary portion between the seat portion 14a and the backrest portion 14b of the base seat 14, and the head pad 21 is placed on the base seat 14. Install and fix. Alternatively, surface fasteners are sewn on the lower surface of the head pad 21 and the upper surface of the base sheet 14, and these surface fasteners are bonded together to attach and fix the pelvic pad 31 on the base sheet 14. Thus, the pelvic pad 31 is laid across the seat 14a and the backrest 14b.

  The head pad 21 and the pelvis pad 31 constitute an infant support pad structure that suitably supports the infant's trunk.

  FIG. 3 is a plan view showing a state where the head pad and the pelvic pad are removed and placed flat. 4 to 7 are cross-sectional views of the head pad cut along a plane perpendicular to the front-rear direction. 8 to 11 are cross-sectional views of the pelvic pad cut along a plane perpendicular to the front-rear direction.

  First, the head pad 21 will be described. The base 25 of the head pad 21 is made of an elastic material with a constant thickness and has a flat upper surface and lower surface. The raised portions 22 to 24 of the head pad 21 integrally formed on the upper surface of the base portion 25 are bilaterally symmetric and have a continuous ridge line 21r as shown by a one-dot chain line. The ridge line 21r has a substantially C-shape opened rearward, extends slightly rounded, and surrounds the infant's head receiving area 26 surrounded on three sides by the raised portions 22-24. The left bulge 22 and the right bulge 24 extend approximately in the front-rear direction, and the front bulge 23 extends approximately in the left-right direction. As shown in FIG. 7, the front raised portion 23 has a central portion in the left-right direction that is lower than both ends in the left-right direction. Thereby, the infant's neck can be stably supported.

  A plurality of ventilation holes 27 are formed in the head receiving region 26 of the infant surrounded on three sides by the raised portions 22 to 24 on the upper surface of the base portion 25. The head receiving area 26 formed on the flat surface supports the infant's occipital region. The left bulge 22 and the right bulge 24 hold the infant's occipital region in the head receiving area 26. The ventilation hole 27 ensures ventilation of the infant's head.

  Next, the pelvic pad 31 will be described. The pelvic pad 31 includes a base portion 34 that is formed flat with an elastic material having a substantially constant thickness and extends in the left-right direction and the front-rear direction, and two raised portions that are spaced apart from each other in the left-right direction at the front portion on the base portion 34. A sciatic support pad portion 32 including a lumbar support pad portion 33 including two raised portions spaced apart from each other in the left-right direction at a rear portion on the base portion 34.

  The raised portion 32l of the sciatic support pad portion 32 is arranged on the left side, the raised portion 32m of the sciatic support pad portion 32 is arranged on the right side, and these two raised portions 32l and 32m are made of an elastic material and are symmetric. And the space | interval of the left-right direction of these left-right paired raised parts 32l and 32m becomes large, so that it goes to the front. When the infant sits on the infant seat 11, the infant's sciatic bone sinks between the pair of left and right raised portions 32l and 32m, and the sciatic support pad portion 32 is suitably elastically deformed according to the shape of the buttocks of the infant, Soft contact with the skin near the sciatica from the outside in the direction. Thereby, the sciatic support pad part 32 can hold | maintain the infant's sciatic bone between these protruding parts 32l and 32m suitably.

  The raised portion 33l of the lumbar support pad portion 33 is arranged on the left side, the raised portion 33m of the lumbar support pad portion 33 is arranged on the right side, and these two raised portions 33l and 33m are made of an elastic material and are symmetric. And the space | interval of the left-right direction of these left-right paired protruding parts 33l and 33m becomes large, so that it goes back. When the infant sits on the infant seat 11, the pelvic part above the infant's sciatus sinks between the pair of left and right raised parts 33 l, 33 m, and the waist support pad part 33 is suitable according to the shape of the infant's waist. It elastically deforms and comes into soft contact with the skin near the pelvic part above the sciatica from outside in the left-right direction. As a result, the lumbar support pad portion 33 can suitably hold the pelvic portion above the sciatic bone of the infant between the raised portions 33l and 33m.

  In this manner, the sciatic support pad portion 32 and the lumbar support pad portion 33 can be combined to stably hold the infant's pelvis, but provide a certain degree of freedom to the movement of both legs of the infant. The pad part 32 is formed softer than the waist support pad part 33.

  A pair of left and right ridges 32r of the pair of left and right raised portions 32l and 32m of the sciatic support pad portion 32 shown by a one-dot chain line in FIG. 3 is arcuate so as to wrap around the sciatic bone receiving space between the pair of left and right raised portions 32l and 32m. Extend to. Thereby, the sciatic support pad part 32 can hold | maintain the infant's sciatic bone more suitably between these protruding parts 32l and 32m.

  A pair of left and right ridge lines 33r of the pair of left and right raised portions 33l and 33m of the waist support pad portion 33 shown by a one-dot chain line in FIG. 3 is arcuate so as to wrap around the waist receiving space between the pair of left and right raised portions 33l and 33m. Extend to. As a result, the lumbar support pad portion 33 can more suitably hold the pelvic portion above the sciatic bone of the infant between the raised portions 33l and 33m.

  The raised portions 32l and 32m of the sciatic support pad portion 32 are substantially semicircular. In other words, the semicircular arc portion of the outline of the left raised portion 32l is directed leftward, and the straight portion is directed rightward. And the semicircular arc part goes to the right among the outlines of the raised part 32m on the right side, and the straight line part goes to the left. Thereby, the shape retention property of the protruding parts 32l and 32m improves, and the infant's sciatic bone can be hold | maintained more appropriately between these protruding parts 32l and 32m. Focusing on the straight portions of the left and right raised portions 32l and 32m described above, the distance between the left and right directions increases toward the front (so-called C shape).

  The raised portions 33l and 33m of the waist support pad portion 33 are substantially semicircular. That is, the semicircular arc portion of the outline of the left raised portion 33l is directed leftward, and the straight portion is directed rightward. And the semicircular arc part goes to the right among the outlines of the raised part 33m on the right side, and the straight line part goes to the left. As a result, the shape retention of the raised portions 33l and 33m is improved, and the pelvic portion above the sciatic bone of the infant can be more suitably held between the raised portions 33l and 33m. When attention is paid to the straight portions of the left and right raised portions 33l and 33m described above, the distance between the left and right directions becomes larger toward the rear (so-called reverse letter C shape).

  A plurality of vent holes 35 are formed between the left and right pair of raised portions 32l and 32m in the base portion 34. A plurality of vent holes 35 are also formed between the two left and right pair of raised portions 33l and 33m. The ventilation hole 35 ensures ventilation of the waist of the infant.

  A groove portion 38 extending in the left-right direction is formed between the sciatic support pad portion 32 and the lumbar support pad portion 33 in the upper surface of the base portion 34. The groove portion 38 serves as a fold of the base portion 34 and acts so that the rear portion of the base portion 34 easily rises forward while keeping the front portion of the base portion 34 horizontal.

  The base portion 34 of this embodiment is formed of an elastic material and elastically deforms when the weight of the infant acts. However, as a modified example, the base 34 may be formed of a resin that does not elastically deform even when the weight of the infant acts. For example, the base 34 may be formed of a material that does not have significant elasticity. For example, the base 34 is formed of a thermoplastic plastic such as polyethylene, polypropylene, or methacrylic resin, or a thermosetting plastic. In this case, the raised portions 32l, 32m, 33l, and 33m are attached to the upper surface of the base 34.

  Returning to the description of this embodiment, the base portion 34 is formed with a notch 36 for receiving the infant's sciatic bone between the pair of left and right raised portions 32l and 32m of the sciatic support pad portion 32. The notch 36 has a substantially trapezoidal shape that approximates a semicircular arc that is adjacent to the raised portions 32l and 32m and protrudes rearward. Since the notch 36 receives the infant's sciatic bone, the sciatic support pad portion 32 can more suitably hold the infant's sciatica between the raised portions 32l and 32m.

  The base 34 is formed with a notch 37 for receiving the infant's waist between a pair of left and right raised portions 33l, 33m of the waist support pad 33. The notch 37 has a substantially trapezoidal shape that approximates a semicircular arc that is adjacent to the raised portions 33l and 33m and protrudes forward. Since the notch 37 receives the infant's waist, the waist support pad 33 can hold the infant's waist between the raised portions 33l and 33m more suitably.

  By the way, according to the present embodiment, the sciatic support pad portion 32 suitably holds the sciatic bone of the lower part of the infant between the raised portions 32l and 32m, and the lumbar support pad portion 33 holds the upper part of the pelvis above the infant's sciatic bone. Since it is suitably held between the raised portions 33l and 33m, the infant's pelvis is held in an appropriate position and posture, and the spine extending upward from the pelvis is also held in an appropriate position and posture. Therefore, the infant's trunk can be held in an appropriate position and posture in the chair state and the bed state of the infant seat 11. Note that the pelvic upper portion above the infant's sciatic bone held by the lumbar support pad portion 33 refers to a part of the pelvis of the sitting infant away from the seat portion 14a. That is, it should be understood that it is mainly hipbone when the infant's physique is relatively large, but is hip and upper sciatic when the infant's physique is relatively small.

  Further, according to the present embodiment, the head pad 21 is aligned and arranged behind the base portion 34. Since the head pad 21 receives the infant's occipital region, the infant's spine extends in the front-rear direction and can be held in an appropriate posture so as not to tilt in the left-right direction. Therefore, the infant's trunk can be suitably held in an appropriate position and posture.

  Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The infant support pad structure according to the present invention is advantageously used in child-care equipment such as a baby carriage, an indoor bed, and a car seat for a vehicle.

  11 Infant seat, 14 base seat, 15 recess, 16 crotch belt through hole, 21 head pad, 21r ridge, 22 left ridge, 23 front ridge, 24 right ridge, 25 base, 26 head receiving area, 27 vents, 31 pelvic pads, 32 sciatic support pads, 32l, 32m protuberances, 32r ridges, 33 lumbar support pads, 33l, 33m protuberances, 33r ridges, 34 bases, 35 vents, 36, 37 notches 38 Groove.

Claims (9)

A base extending in the left-right direction and the front-rear direction;
An infant that is formed of an elastic material and includes two ridges spaced apart in the left-right direction at the front portion on the base, and the left-right distance between the pair of left and right ridges increases toward the front A sciatic support pad for supporting the sciatic bone,
An infant that is formed of an elastic material and includes two ridges spaced apart in the left-right direction at the rear part on the base, and the left-right distance between the pair of left and right ridges increases toward the rear. A lumbar support pad for supporting the pelvic part above the sciatic bone,
An infant support pad structure.   The infant support pad structure according to claim 1, wherein the sciatic support pad portion is formed to be softer than the lumbar support pad portion.   The infant support according to claim 1 or 2, wherein a pair of left and right ridge lines in the pair of left and right raised portions of the sciatic support pad portion extend in an arc shape so as to wrap around a sciatic receiving space between the pair of left and right raised portions. Pad structure.   The pair of left and right ridge lines in the pair of left and right raised portions of the waist support pad portion extend in an arc shape so as to wrap around a waist receiving space between the pair of left and right raised portions. Infant support pad structure.   The infant support pad structure according to claim 3, wherein the raised portion of the sciatic support pad portion has a substantially semicircular shape.   The infant support pad structure according to claim 4, wherein the raised portion of the waist support pad portion has a substantially semicircular shape.   The infant support pad structure according to any one of claims 1 to 6, wherein the base is formed with a notch for receiving an infant's ischi between a pair of left and right raised portions of the sciatic support pad part.   The infant support pad structure according to any one of claims 1 to 7, wherein the base is formed with a notch for receiving an infant's waist between a pair of left and right raised portions of the waist support pad.   The infant support pad structure according to any one of claims 1 to 8, further comprising a head pad that is aligned and arranged rearward of the base and has a recess for receiving the infant's head.

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