JPH047202B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to childcare equipment having a relatively small chair-like bed, such as a folding baby carriage, a child's chair, a cradle, a swing, and a chair. The present invention relates to a child-care appliance that is equipped with a type seat, but can also be used as a simple bed by folding down the backrest, and particularly relates to a chair-like bed of such a child-care appliance.

[Prior art] The applicant filed a patent application dated April 22, 1982.
-61813 (see Japanese Patent Application Laid-open No. 175320/1983) for ``Childcare appliance with seat'', and proposed a preferred form for the seat of such childcare appliance from the viewpoint of preventing hip dislocation. In other words, the seat portion of the seat allows for dimensions such that the distance between the groins is maintained at a predetermined value to prevent hip dislocation, and there is no obstacle that presses inward on the outside of both kneecaps of a sitting infant. This is a seat for a childcare appliance with a seat, which is arranged in a space and further includes a pair of positioning members for lateral positioning of the buttocks of an infant placed on the seat. More typically, the seat has a front end longer than its rear end, and has a substantially trapezoidal shape when viewed from above. Further, the length of the front edge of the seat portion is preferably selected to be 36 cm or more based on clinical data.

According to this conventional technology, since the infant's buttocks are stable and there is no obstacle on the outside of the kneecap that presses it inward, the distance between the infant's groin is kept at a predetermined value necessary to prevent hip dislocation. can keep,
Moreover, it becomes possible to provide a stable environment for infants.

[Problems to be Solved by the Invention] FIG. 2 is a diagram showing the natural body shape of an infant lying on a bed, viewed diagonally from above the infant's feet. As shown in this drawing, the legs of an infant in a natural body shape are bent at the hip joints like a frog.
The substantially trapezoidal seat described above is formed in the area enclosed by lines 1, 2 and 3 in FIG. Therefore, a space wider than the rear edge of the seat, indicated by line 3, is formed in the area above the seat where the baby's kneecaps are located. Further, as described above, a pair of positioning members for lateral positioning of the infant's buttocks are provided on both sides near the boundary between the seat portion and the backrest portion, also indicated by line 3. Although not shown in FIG. 2, the positioning member may, for example, form a raised portion at each corner where lines 1 and 2 and line 3 intersect, or may form a pair of side walls rising from the seat. It is realized by.

In conjunction with the seat as described above, the seat is formed with a backrest. For example, in the case of child-care equipment such as a folding baby carriage where the width dimension cannot be made very large, it is impossible to provide the backrest part so wide;
Usually, it is formed to have a width approximately equal to the length of the rear edge of the seat, as indicated by line 3. That is, in FIG. 2, the backrest portion is formed with a width defined between two-dot chain lines 4 and 5.

In order to stably support a seated infant, a pair of side walls are usually formed on the backrest portion as described above, rising from both side edges thereof. That is, these side walls are located on lines 4 and 5. Experience has shown that when the seat takes the form of a chair with the back rest upright, infants do not sit deeply in the seat, but rather tend to lean forward and move away from the back rest. spread across the country.

However, when an infant falls asleep and uses the reclining mechanism of such a seat to recline the backrest, the infant's upper body naturally comes into contact with the backrest and is supported by the backrest. becomes. Referring again to FIG. 2 and focusing on the baby's elbows, it can be seen that they protrude outside the area defined between lines 4 and 5. That is, when an infant is laid down, the pair of side walls rising up from both side edges of the backrest portion act as a factor that compresses the natural body shape of the infant as shown in FIG. 2. In this way, in the previous application by the applicant mentioned above, despite efforts to improve the seat area, no consideration was given to the backrest area, and there is still room for further improvement. I found out something.

Therefore, the present invention aims to provide a chair-like bed for childcare equipment that does not apply pressure even near the elbows when an infant in a natural body shape as described above sleeps.

[Means for Solving the Problems] The present invention has a seat portion that supports the lower body of an infant and a backrest portion that supports the upper body of the infant.
A pair of side walls are formed, and a pair of positioning members for lateral positioning of the buttocks of an infant are provided on both sides near the boundary between the seat and the backrest. A space wider than the space between the pair of positioning members is formed above the area where the infant's kneecap is located.
The above-mentioned problems of the chair-like bed for child-care equipment are solved as follows.

That is, the backrest has a hexagonal shape that gradually widens from the width between the pair of positioning members from the lower end toward the upper end, and then extends with a uniform width in the area where the baby's elbows are located. The device is characterized in that the pair of side walls are formed to stand up from both side edges of the backrest portion.

[Operations and Effects of the Invention] According to this invention, 1 formed in the backrest portion
The paired side walls are formed, for example, along the lines 6, 7 shown in FIG. 2 and are wider in the area where the baby's elbows are located. This prevents the side edges of the backrest portion from compressing the natural body shape of a lying baby at the elbows. Therefore, the chair-like bed of child-care equipment, which is normally desired to be small, can provide excellent sitting comfort without increasing its dimensions.

The aforementioned hexagonal shape given to the backrest is also the most efficient in terms of space and materials used to ensure a natural body shape at the elbows of a lying infant. In addition to having a good shape, a relatively wide width is ensured in the area further toward the lower body than the area where the infant's elbow is located. Therefore, when placing an infant carried from outside on the chair-like bed according to the present invention, the pair of side walls rising from both side edges of the backrest portion do not get in the way of the adult's hands, and the infant can be placed on the chair-like bed according to the present invention. You can also expect the effect of making it easier to sleep.

The pair of positioning members that position the infant's buttocks in the lateral direction also function to position the infant's upper body with respect to the backrest portion. That is, by using such a pair of positioning members, the infant's upper body can also be positively positioned approximately at the center of the backrest portion in the width direction. This makes effective use of the limited width of the backrest portion, and helps to reliably create space on both sides of the infant's torso. if,
If such a positioning member does not exist,
The infant's upper body may be positioned on one side of the backrest, and in this case, even if the width between the two walls of the backrest is widened in the area where the infant's elbows are located, , one of the elbows will be compressed by the side wall on that side. From such a thing,
It can be said that the dimensional features provided to both side walls of the backrest portion according to the present invention exert their effects in close association with the positioning member for the buttocks.

[Example] Fig. 1 is a perspective view showing only a chair-like bed provided in a childcare equipment according to the present invention.

The chair-like bed 10 shown in FIG. 1 schematically shows an embodiment of the present invention, and has a seat portion 11 that supports the lower body of an infant and a backrest portion 12 that supports the upper body of the infant. ing. A pair of rising side walls 13 are provided on both side edges of the backrest portion 12.
14 is formed. Further, it is preferable that an upper end wall 15 is also formed along the upper end edge of the backrest portion 12 so as to connect each end of the pair of side walls 13. Furthermore, preferably, a pair of side walls 16 and 17 are formed rising from each portion of both side edges of the seat portion 11.

The chair-like bed 10 may be configured such that the inclination angle of the backrest portion 12 can be changed. In this case, between the side wall 13 and the side wall 16, and between the side wall 14
and the side wall 17 are configured to be separated or deformable. In FIG. 1, the backrest 12 of the chair-like bed 10 is not completely horizontal, but is slightly inclined.

A pair of positioning members 19 and 20 are provided on both sides near the boundary 18 between the seat portion 11 and the backrest portion 12 for lateral positioning of the infant's buttocks. In this embodiment, positioning member 1
9, 20, without providing any special members,
The ends of the side walls 13, 14 and the side wall 16,
The end portions of 17 constitute positioning members 19 and 20. Focusing on the seat 11, a space wider than the space between the pair of positioning members 19 and 20 is formed above the seat 11 in a region where the baby's kneecaps are located. That is, in this embodiment, the seat 11 has a substantially trapezoidal shape.

The backrest portion 12 has a hexagonal shape that gradually widens from the width between the pair of positioning members 19 and 20 from its lower end toward its upper end, and then extends with a uniform width in the area where the baby's elbows are located. It has a shape. The pair of side walls 13 and 14 are formed to rise from both side edges of the backrest portion 12. By this, a pair of side walls 1
The width between 3 and 14 is the same as that of the pair of positioning members 19 and 2.
The width is wider in the area where the infant's elbow is located than the width between 0 and 0.

As mentioned above, by selecting the width between the pair of side walls 13 and 14, a space defined between lines 6 and 7 in FIG. You can assume a natural body shape as shown in Figure 2 without feeling pressured.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a view of the natural body shape of a lying infant viewed diagonally from above the infant's feet. In the figure, 10 is a chair-like bed, 11 is a seat, 12 is a backrest, 13 and 14 are side walls, and 18
is a boundary, and 19 and 20 are positioning members.

Claims (1)

[Scope of Claims] 1. It has a seat part that supports the lower body of an infant and a backrest part that supports the upper half of the infant's body, and a pair of rising side walls are formed at least on both side edges of the backrest part, and A pair of positioning members for lateral positioning of the infant's buttocks are provided on both sides near the boundary between the seat and the backrest. In the chair-like bed of the child-care equipment, in which a space wider than the space between the pair of positioning members is formed in the positioning region, the backrest portion is arranged so that the backrest part is arranged in a direction from the lower end to the upper end thereof. It has a hexagonal shape that gradually widens from the width between the positioning members and then extends with a uniform width in the area where the infant's elbows are located, and the pair of positioning members are arranged so as to rise from both side edges of the backrest portion. A chair-shaped bed for childcare equipment, characterized by having side walls formed therein.