JPS6213231B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat part of a baby carriage, and more particularly, to a seat part of a baby carriage that is designed to prevent hip dislocation of a sitting infant from a medical standpoint.

The occurrence of hip dislocation is largely related to the environment in which infants are handled in the early neonatal period, and the design of childcare equipment used during this period is an important factor.
Patent application No. 55-122690 filed by the same applicant as the present applicant
No. 56-61813, etc. Briefly, it has been found that the majority of hip dislocations occur during the very early neonatal period by restricting the free movement of the infant's legs and restraining the infant's legs in an extended position. Therefore, immediately after birth, it is important to allow infants to freely spread their legs in a very natural shape without hindering their leg movements, that is, to keep the hip joints bent and spread out like a frog. Significantly reduced the incidence of dislocation.
The conditions for providing such a natural organism, that is, an environment that actively guarantees the healthiest and most comfortable posture and does not hinder free growth, are as follows: In other words, it is important to maintain the distance between the legs at a predetermined value or higher and maintain a natural state. This should be strictly followed, especially up to 6 months of age. According to the data completed by the inventor of this application, the distance between the crotches ranges from 28 to 30 cm at 3 months of age, 28 to 33 cm at 4 months, 29 to 33 cm at 5 months, and 31 to 36 cm at 6 months. It was found that they are distributed respectively. Furthermore, there are not many major changes in the distance between the legs between 6 months and 10 months, when children are able to walk on their own.

Recently, baby carriages that can be used from 2 months after birth have been proposed as childcare equipment. However, at present, unfortunately, there are almost no measures taken into consideration from the viewpoint of preventing hip dislocation as described above. In other words, recently, baby strollers with a folding mechanism have become the mainstay, and there is a growing tendency to make them more compact to make them more convenient to carry in the folded state, and naturally baby carriage seats are also becoming smaller. . From the above data, it can be seen that it is sufficient for this seat to have a configuration that allows for a maximum crotch distance of 36 cm. However, the wider the seat, the better it is, and the infant must be kept stable in the seat, i.e. the infant sitting in the seat must be prevented from moving around widthwise. There must be. Therefore, while maintaining the above-mentioned dimensions at the infant's kneecap, the buttocks must be stably positioned.

Therefore, the main object of the present invention is to achieve the above-mentioned needs by making simple improvements to the conventional seat configuration.

In summary, the present invention utilizes the flexibility of a seat made of a flexible sheet material to form a seat from below the seat on each side near the rear end of the seat. 1. Raise the seat surface upwards.
This device is characterized in that a pair of pillows are provided on the main body side of the baby carriage. As a result, even if the seat is constructed with the width necessary to prevent hip dislocation as described above,
The width of the part where the infant's buttocks is located is appropriately narrowed, making it possible to stably position the buttocks.

Other objects and features of the present invention will become more apparent from the detailed description given below with reference to the drawings.

FIG. 1 is a perspective view showing a baby carriage to which an embodiment of the present invention is applied. FIG. 2 is a perspective view showing essential parts of the main body of the baby carriage shown in FIG. 1. 3 is a schematic plan view of the seat portion of the baby carriage shown in FIG. 1. FIG. FIG. 4 is a sectional view taken along the line - in FIG. 3.

Referring to FIG. 1, a so-called box-shaped seat 1 is illustrated. It includes a side part 4 extending upright from both sides thereof, and a head guard 5 extending upright from above the backrest part 3. The seat 1 constituting each of these parts is made of a flexible sheet material, and a suitable hard core material is inserted as needed to make it stiff.
However, as will be explained later, the invention specifically takes advantage of flexibility in the seat 2.
The seat 1 is attached to the stroller body in a suspended state by wrapping the upper ends of both side portions 4 around holding rods 6 on the stroller body side and fastening them with hooks or rivets.

Furthermore, as a configuration related to the seat 1, a torso guard 8 is attached to the upper end of the rear leg 7 of the baby carriage.
A crotch belt 9 is attached to connect the torso guard 8 and the seat portion 2. Furthermore, the push rod 10 holds the sunshade 11.

The backrest 3 of the seat 1 may be configured so that it can be further raised from the state shown in FIG. 1, and in this case, the seat 1 becomes chair-shaped.
When the backrest portion 3 is raised in this way,
The head guard 5 forms a uniform surface with the backrest part 3, and constitutes a part of the backrest part.

As described above, when the seat 1 is attached to this baby carriage, the front horizontal bar 13 is located below the front part of the seat part 2 and extends between the pair of front legs 12. A rear horizontal bar 15 extending between a pair of connecting rods 14 connected between the rear legs 7 and the push rod 10 extends below the rear portion of the seat portion 2 . This rear horizontal bar 1
A pair of pillows 16, which is a feature of the present invention, are provided.

The pillow 16 is penetrated and held by the rear crossbar 15, and if necessary, further fixed with rivets or screws 17 at a position different from the position through which the rear crossbar 15 passes. The pillow 16 is sloped so that it becomes higher from the inside toward the outside. The pillows 16 are located on each side near the rear end of the seat 2, and raise the seat surface formed by the seat 2 upward, as best shown in FIGS. 3 and 4. . Thereby, seat part 2
The width near the rear end is narrowed down. The relationship between the dimensions in the width direction is shown in FIG. That is, the front end of the seat 2 has a width 18 defined by the pair of front legs 12, and the vicinity of the rear end of the seat 2 has a width 19 defined by the pair of pillows 16. Take. Width 19 is narrower than width 18. Note that the pillow 16 also necessarily deforms the side part 4 of the seat 1.

In this way, in the front part of the seat part 2, the distance between the infant's crotches is maintained at a predetermined value or more necessary to prevent hip dislocation, while in the rear part of the seat part 2, the infant's buttocks are kept in a stable state. can be held in

FIG. 5 is a perspective view showing a baby carriage to which a second embodiment of the present invention is applied. FIG. 6 is a perspective view showing essential parts of the main body of the baby carriage shown in FIG. 5.

The baby carriage to which this second embodiment is applied differs from the baby carriage to which the previous embodiment is applied in the following points. First, a member corresponding to the front leg 12 in FIG. 1 is omitted, and the connecting rod 14 is further extended so that it also serves as the front leg. Therefore, the front horizontal bar 13 is attached to the rear leg 7. The other configurations are substantially the same as those of the first embodiment described above. Therefore, corresponding parts will be given the same reference numerals and redundant explanation will be omitted.

Pillow 16 used in this second embodiment
has a truncated cone shape. The rear horizontal bar 15 is held in a state passing through the central axis thereof. The truncated cone-shaped pillow 16 is a rotating body, and the rear horizontal bar 15 extends through its axis of rotation, so there is no particular need to fix the rotation of the pillow 16 around the rear horizontal bar 15. .

This pillow 16 is also sloped so that it becomes higher from the inside to the outside. Such a pillow 16 utilizes the flexibility of the seat portion 12 and side portions 14 to form a bulge near the rear end of the seat surface, similar to that shown in FIGS. 3 and 4. do.

FIG. 7 is a perspective view showing only the frame structure of a baby carriage to which a third embodiment of the present invention is applied.

The seat of the baby carriage is not illustrated in FIG. 7, and the components related to this seat include a seat holding member 20, a backrest holding member 21, and a footrest 22.
is illustrated. The seat holding member 20 forms a closed frame and is arranged in an upright position. Therefore, the upper end of the side of the seat is attached along the upper bar of this seat holding member 20, and the seat is then attached to the seat holding member 20.
is formed on the extending surface of the lower frame. 1
A front horizontal bar 23 and a rear horizontal bar 24 are passed between the pair of seat holding members 20 with their positions changed back and forth. A pillow 16, which is a feature of the present invention, is provided held on the rear crossbar 24.

The pillow 16 shown here has a shape in which a part of a semicircular cylinder is cut along a plane that is not parallel to the axis. This cut plane results in a slope that is higher from the inside to the outside. This pillow 16 also forms a bulge in the seat portion 2 as shown in FIGS. 3 and 4.

FIG. 8 is a perspective view showing the main parts of a fourth embodiment of the invention.

FIG. 8 shows the vicinity of the rear horizontal bar 24 in FIG. 7, and the shape of the pillow 16 has been changed compared to that in FIG. However, this pillow 16 has substantially the same shape as the pillow described in the second embodiment. Therefore, no further explanation is necessary.

In each of the embodiments described above, the members originally provided in the main body of the baby carriage (i.e., the rear horizontal bar 15 or 2
4) was used to attach a separately prepared pillow 16. Note that, as in the illustrated embodiment,
In addition to using the rear crossbar 15 or 24, for example, in the baby carriages shown in FIGS. 1 and 5, the connecting rod 1
4, in the baby carriage shown in FIG.
The pillow 16 may be riveted or screwed directly to the top. As described above, if the members originally provided in the baby carriage can be used, the effects of the present invention can be expected with only slight improvements made to the baby carriages that have been manufactured and sold in the past. However, if you do not want these benefits,
The pillow may be attached after changing the configuration of the baby carriage main body. In addition, to realize a pair of pillows, we used pillows that were each made into one item, but we also used an integral part that has a pair of parts corresponding to the pillows to create a pair of pillows. It may be realized.

As described above, according to the present invention, the distance between the infant's groin can be reduced at the front of the seat to prevent hip dislocation by simply using a pillow without making any changes to the seat itself conventionally used in baby carriages. A seat portion of a stroller can be obtained in which the baby's buttocks can be stably positioned in the rear portion of the seat portion while maintaining the baby's baby's buttocks at a predetermined value or more necessary for the seat portion.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a baby carriage to which an embodiment of the present invention is applied. FIG. 2 is a perspective view showing essential parts of the main body of the baby carriage shown in FIG. 1. 3 is a schematic plan view of the seat portion of the baby carriage shown in FIG. 1. FIG. FIG. 4 is a sectional view taken along the line - in FIG. 3. FIG. 5 is a perspective view showing a baby carriage to which a second embodiment of the present invention is applied. FIG. 6 is a perspective view showing essential parts of the main body of the baby carriage shown in FIG. 5. FIG. 7 is a perspective view showing only the frame structure of a baby carriage to which a third embodiment of the present invention is applied. FIG. 8 is a perspective view showing the main parts of a fourth embodiment of the invention. In the figure, 1 is a seat, 2 is a seat, 3 is a backrest, 15 and 24 are rear horizontal bars, 16 is a pillow, 20 is a seat holding member, and 21 is a backrest holding member.

Claims (1)

[Scope of Claims] 1. A seat including a seat made of a flexible sheet material and a backrest extending from the rear of the seat; A seat part of a baby carriage that is provided with a pair of pillows on the side of the baby carriage body to raise the seat surface formed by the parts upward. 2. Each of the pillows is penetrated and held by a rod passing in the width direction below near the rear end of the seat.
A seat portion of a baby carriage according to claim 1. 3. The seat portion of a baby carriage according to claim 1 or 2, wherein each of the pillows is sloped to be higher from the inside to the outside.