JPH08175395A - Seat of stroller - Google Patents

Abstract

PURPOSE: To enable a stroller seat to keep the center of its backrest portion from collapsing even at the application of the greater weight of a baby with the backrest portion fully folded down, the stroller seat having a backrest core and a head guard core used to keep the shapes of a backrest portion and a head guard portion and divided respectively into a plurality of backrest portions and a plurality of head guard portions in order to permit the folding action of the stroller in its cross direction. CONSTITUTION: A plurality of backrest plates 15 to 17 are hinged to one another and a plurality of head guard plates 18 to 20 are hinged to one another, both by means of hinge tapes from their backs, and the backrest plates and the head guard plates are hinged to each other by hinge tapes 27 to 29 on their fronts. With a backrest core 9 fully folded down, a head guard core 10 is held raised from the upper end of the backrest core 9, so that the deflection strength of the backrest core 9 is increased by the head guard core 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat for a baby carriage, and more particularly to a seat which becomes a bed when the backrest thereof is most tilted.

[0002]

2. Description of the Related Art As a seat for a baby carriage, a chair type having a seat portion and a backrest portion is widely used. In such seats, the back portion is often provided so that the inclination angle can be changed. Further, regarding such a range of inclination angle change of the backrest, it is preferable that the backrest is tilted down to the extent that the seat can be formed into a bed.

According to the safety standard for baby carriages, it is obligatory to attach a head guard to a bed-shaped seat. The head guard is placed so as to face the upper surface of the infant's head placed in the baby carriage, and prevents the infant from protruding the head from the bed-shaped seat or even sliding off the head. It is a thing.

The above-mentioned head guard section is required only when the seat has a bed shape. Therefore, from the viewpoint of the sitting comfort of the baby, it is not preferable that the head guard portion is above the baby's head even when the backrest is in a relatively raised state. Therefore, when the backrest is relatively upright, the headguard and the backrest are substantially aligned with each other on the plane, and the headguard is placed on the upper surface of the infant's head only when the backrest falls down into a bed. It is desirable to be positioned so as to face each other.

A stroller seat that can meet the above needs is
For example, it is described in Japanese Patent Publication No. 58-33149 by the present applicant.

Further, the seat portion, the backrest portion, and the head guard portion provided in the seat described above are respectively formed by a plate-shaped seat core member, a backrest core member, and a head guard core member made of a material having relatively high rigidity. Is maintained. The seat core material, the backrest core material and the head guard core material are covered with a flexible cover sheet.

In the baby carriage described in the above-mentioned publication, the folding operation in the width direction is not performed, but in the baby carriage capable of folding operation in the width direction, such folding operation in the width direction is performed. The seat core member, the backrest core member, and the head guard core member described above each include a plurality of seat plates, a backrest plate, and a head guard plate divided by at least one dividing line extending parallel to the side surface of the baby carriage. Is provided.

[0008]

The above-described divisional structure provided to each of the seat plate, the backrest core member and the head guard core member is necessary for allowing the folding motion of the baby carriage in the width direction. This causes the following inconvenience. That is, when the baby is placed on the seat with the baby carriage open, the seat core, the backrest core and the head guard core are bent along the dividing line according to the weight of the baby, and the seat is centered in the width direction. Tends to be depressed in the department.

In particular, paying attention to the backrest, more weight of the baby is added to the backrest when the backrest is in the most receded state than in the relatively raised state. As a result, the above-mentioned dip
It occurs more prominently when the backrest is most tilted.

Therefore, an object of the present invention is to provide a seat for a baby carriage which can reduce the problem of the depression in the backrest as described above.

[0011]

SUMMARY OF THE INVENTION According to the present invention, a seat portion, a backrest portion which is provided so as to rise from a rear end of the seat portion and whose inclination angle can be changed, and a top portion of the backrest portion are rotatably connected. With the head guard, and the backrest is relatively upright, the backrest and the headguard are substantially aligned on the same plane, while the backguard is in the most tilted state. The upper portion of the backrest is raised from the upper end of the backrest portion, and the backrest portion and the head guard portion are maintained in their respective shapes by a plate-like backrest core material and a headguard core material made of a material having relatively high rigidity. , The backrest core member and the head guard core member each extend in parallel with the side surface of the baby carriage to allow the folding operation in the width direction of the baby carriage. The present invention is also directed to a seat of a baby carriage having a plurality of backrest plates and a plurality of head guard plates divided by one dividing line, and has the following configuration in order to solve the above-mentioned technical problem. It is characterized by that.

That is, the plurality of backrest plates and the plurality of headguard plates are hingedly connected to each other on the back side. Further, each backrest plate and each head guard plate are hingedly connected on the front side.

[0013]

In the present invention, the plurality of backrest plates and the plurality of headguard plates are hingedly connected to each other instead of being simply arranged in the backrest portion and the headguard portion, respectively. As a result, each of the backrest plate and each of the head guard plates restricts movement between the adjacent ones when rotating with respect to the adjacent backrest plate or head guard plate. Therefore, when the backrest portion is most tilted and the headguard portion is in a state of rising from the upper end of the backrest portion, the headguard core material is
It acts to increase the bending strength of the backrest core.

[0014]

Therefore, according to the present invention, when the backrest portion is most tilted, even if much of the weight of an infant is added to the backrest portion, the fall of the backrest portion is suppressed,
It is possible to give an infant a favorable sitting comfort and prevent the infant's spinal cord from being deformed unnaturally.

Further, in the present invention, the side to which the plurality of backrest plates and the plurality of headguard plates are hinge-connected to each other is selected to be the back side, so that the center portion in the width direction of the backrest portion and headguard portion is selected. Although the bending for projecting forward can easily proceed, a large resistance can be given to the bending in the opposite direction. This also contributes to the suppression of the backrest depression caused by the weight of the baby. In particular, this advantage works effectively when the backrest is relatively upright.

In order to achieve the above-mentioned advantages more completely, the plurality of backrest plates and the plurality of head guard plates are
It is preferable that when they are arranged substantially on one plane, they have end faces that abut each other.

Further, in the present invention, since the side where the backrest plate and the headguard plate are hinge-connected is the front side, the headguard portion can be smoothly rotated so as to stand up from the upper end of the backrest portion. You can

[0018]

1 and 2 are perspective views showing a baby carriage 2 having a seat 1 according to an embodiment of the present invention. Seat 1
Is a seat portion 3, a backrest portion 4 which is provided so as to rise from the rear end of the seat portion 3 and whose inclination angle can be changed, and a head guard portion 5 which is rotatably connected to an upper end of the backrest portion 4.
And a pair of side guard portions 6 standing up from both side ends of the backrest portion 4. In FIG. 1, the backrest portion 4 is in a relatively raised state, and the head guard portion 5 is
Are substantially aligned with the backrest portion 4 on a plane.
On the other hand, in FIG. 2, the backrest portion 4 is in the most tilted state, and the head guard portion is in a state of standing up from the upper end of the backrest portion 4.

The surface of such a seat 1 is provided by a flexible cover sheet 7 such as cloth. A suitable cushion material is preferably added to the cover sheet 7. The state where the cover sheet 7 is removed is shown in FIGS. 3 and 4. FIG. 3 corresponds to FIG. 1, and FIG. 4 corresponds to FIG. Further, FIG. 5 shows a state in which the baby carriage 2 is folded, and the cover sheet 7 is removed also in this drawing.

Seat 3, backrest 4, head guard 5
The side guard portion 6 is provided with a plate-shaped seat core material 8, a backrest core material 9, a head guard core material 10, and a side guard core material 11, each of which is made of a material having relatively high rigidity.
Each shape is maintained by these core materials 8 to 11.
Although illustration of the side guard core material 11 is omitted in FIGS. 3 to 5, the side guard core material 11 is not shown in FIG.
It is shown in phantom in FIGS.

As can be seen by comparing FIGS. 3 and 5,
When the baby carriage 2 is folded, a folding operation in the width direction occurs. In order to allow such a folding operation in the width direction of the baby carriage 2, the seat core material 8, the backrest core material 9 and the head guard core material 10 are respectively provided in the baby carriage 2
Seat plates 12 to 14 and three back plates 15 to 17 divided by two dividing lines extending parallel to the side surface of
And three head guard plates 18 to 20. Details of such a seat core material 8, a backrest core material 9, and a head guard core material 10 are shown in FIGS. 6 to 11.

FIG. 6 shows a state corresponding to the state shown in FIG. 3, and FIG. 7 shows a state corresponding to the state shown in FIG. Further, FIG. 8 is a line VIII-VIII in FIG.
9 is a sectional view taken along line IX-IX in FIG. 6. 10 and 11 show forms of the seat core member 8, the backrest core member 9, and the head guard core member 10 which are given according to the folding operation of the baby carriage 2, and FIG. 10 shows a state in the middle of folding. Shown in FIG.
Shows a state after folding, that is, a state corresponding to the state shown in FIG.

Adjacent ones of the three seat plates 12-14, three adjacent ones of the three back plates 15-17,
And adjacent ones of the three head guard plates 18 to 20 are hinged to each other. Further, each of the backrest plates 15 to 17 and each of the head guard plates 18 to 20 are hingedly connected. For these hinge connections, for example, hinge tapes 21 to 29 made of a flexible sheet material that can be repeatedly bent are used. The hinge tapes 21 to 29 are attached to predetermined places by a method such as adhesion, adhesion or welding. The seat plates 12 to 14,
Backrest plates 15-17 and head guard plates 18-20
Is obtained by molding a resin, these hinge tapes 21 to 29 may be inserted into a mold for molding so that the hinge tapes 21 to 29 can be attached simultaneously with molding. Good.

The hinge tapes 21 and 22 are used for the seat plate 12
-14 are located on the lower surface side. The hinge tapes 23 and 24 are located on the back side of the backrest plates 15-17.
The hinge tapes 25 and 26 are attached to the head guard plate 18-
It is located on the back side of 20. Hinge tape 27-29
Is a backrest plate 15-17 and a head guard plate 18-
It is located on the front side of 20.

In this way, the seat core material 8 can be bent upward as shown in FIGS. 10 and 11, and the backrest core material 9 and the head guard core material 10 can be bent forward. it can. Further, as shown in FIG. 7, the head guard core material 10 can be bent so as to stand up from the upper end of the backrest core material 9.

When the seat plates 12 to 14 are substantially aligned on one plane, as shown in FIG. 8, the adjacent seat plates 12 and 13 have their end faces 30 and 30 abutted against each other. 31 and the adjacent seat plates 13 and 14 respectively have end faces 32 and 33 that abut each other. In this way, the core material 8
Can be bent as shown in FIGS. 10 and 11, but when placed in a state of being substantially aligned on one plane as shown in FIG. 8 and the like, the end faces 30 and 31 and the end faces 32 and 33 are mutually separated. The flat state is firmly maintained by the butting. Therefore, it is possible to prevent the center portion of the seat portion 3 from falling downward due to the weight of the infant placed on the seat 1, and to prevent the infant from being unnaturally fatigued.

Similar consideration is given to the backrest core 9. As best shown in FIG. 9, the back plate 1
When 5 to 17 are substantially aligned on one plane,
Adjacent back plates 15 and 16 each have end faces 34 and 35 that abut each other, and adjacent back plates 16 and 17 each have end faces 36 and 37 that abut each other. In this way, the backrest core material 9 can be bent as shown in FIGS. 10 and 11, but when it has a uniform flat surface, the flat state is maintained firmly.

Similar considerations apply to the head guard core 10. When the head guard core materials 10 are substantially aligned on one plane, adjacent head guard plates 18 and 19 are, as indicated by reference numerals in FIG.
Adjacent head guard plates 19 and 20, respectively, having end faces 38 and 39 butted against each other,
Each has end faces 40 and 41 that are butted against each other.

Maintaining the flat state by abutting the end faces with each other as described above preferably maintains the state in which the backrest core material 9 and the head guard core material 10 shown in FIG. 6 are substantially aligned on one plane. Therefore, it is also used between the backrest plates 15 to 17 and the head guard plates 18 to 20.

As described above, with respect to the backrest core 9, as shown in FIG. 9, the backrest plates 15 to 17 are substantially aligned on one plane by the butting of the end faces 34 to 37. Maintained. However, in FIG.
As shown in FIGS. 4 and 7, when the backrest portion 4, that is, the backrest core material 9 is most tilted, more weight of an infant is added to the backrest core material 9 than in a state in which the backrest portion 4 is relatively upright. Become. Therefore, the backrest part 4 tends to fall in the central part. In this embodiment, such a fall of the backrest portion 4 can be considerably suppressed by the presence of the head guard core material 10.

That is, as best shown in FIG. 7, when the backrest core material 9 is most tilted, the head guard core material 10 is in a state of standing up from the upper end of the backrest core material 9, The guard core material 10 acts so as to increase the flexural strength of the backrest core material 9. As a result, the backrest portion 4 is prevented from falling down, a comfortable sitting comfort can be given to an infant, and the spinal cord of the infant can be prevented from being unnaturally deformed.

Depending on the folding operation of the baby carriage 2,
As shown sequentially in FIGS. 10 and 11, the seat core member 8 and the backrest core member 9 are bent upward and forward, respectively, and the seat core member 8 and the backrest core member 9 are seated so that the upper surface and the front surface of the backrest core member 9 are close to each other. The core material 8 and the backrest core material 9 are rotated. As can be seen from such a folded state, the seat core material 8 and the backrest core material 9 operate so as to interfere with each other. Therefore, the folded state of the baby carriage 2 as shown in FIG. 5 cannot be obtained unless measures are taken to mitigate this interference.

As a countermeasure, in this embodiment, the lower end of the central backrest plate 16 provided on the backrest core 9 is held by the flexible belt 42. The belt 42 is passed between the belt mounting members 43 and 44 while each end thereof is mounted on the pair of belt mounting members 43 and 44, respectively. More specifically, the belt 42
Two slots 4 provided at the lower end of the backrest plate 16
Back plate 1 by passing through 5 and 46 in sequence
6 is held. On the other hand, the belt mounting member 43
And 44 have rings 47 and 48, respectively, which are inserted into looped portions formed at each end of belt 42.
Is formed.

The belt attachment members 43 and 44 are located on both sides of the stroller 2 and come close to each other according to the folding operation of the stroller 2 in the width direction. The belt attachment members 43 and 44 are attached to the angle members 51 and 52 attached to the rear legs 49 and 50 of the baby carriage 2, respectively. The belt attachment members 43 and 44 hold shafts 53 and 54, respectively, as shown in FIG. Shafts 53 and 54 are seat plate 1 respectively.
Bearing parts 55 and 5 provided on the lower surfaces of 2 and 14, respectively
6 and is rotatable within bearings 55 and 56 about their respective axes. The front ends of the shafts 53 and 54 are held by brackets 59 and 60 attached to the front legs 57 and 58 of the baby carriage 2, respectively.

When the baby carriage 2 is open, the belt 42 is
Are relatively tense. Therefore, the lower end of the backrest core material 9 is kept in a stable position.

When the stroller 2 is folded, the pair of belt mounting members 43 and 44 come close to each other. As a result, the seat core member 8 and the backrest core member 9 are bent upward and forward, respectively, and the belt 42 is loosened. Therefore, the upper surface of the seat core material 8 and the backrest core material 9
When the seat core material 8 and the backrest core material 9 are rotated so that the front surface of the seat core material 8 and the front surface of the backrest core material 9 collide with the backrest core material 9 via the cover sheet 7, the backrest core material 9 is In response to the collision, it is displaced so as to avoid interference with the core material 8. As a result, it is possible to prevent the progress of the folding operation of the baby carriage 2 from being hindered by the interference between the seat core material 8 and the backrest core material 9.

In order to allow the relative movement of the seat core material 8 and the backrest core material 9 as described above, the cover sheet 7 has a slack at the boundary portion between the seat portion 3 and the backrest portion 4. Has been done.

A mechanism for causing the backrest core 9 to bend forward will be described later.

Next, the mechanism for giving the operations of the backrest core material 9 and the head guard core material 10 as shown in FIGS. 6 and 7 will be described.

FIG. 12 is a side view of the baby carriage 2. FIG.
2, the baby carriage 2 is shown partially omitted or broken. The elements shown in FIGS. 12 to 18 are symmetrically provided on both sides of the baby carriage 2, but the description with reference to these drawings will be made only for the elements provided on one side. .

A backrest holding member 61 is provided as an inclination angle fixing means for fixing the changed inclination angle of the backrest portion 4. The backrest holding member 61 is a pin 62.
Is attached to the adjustment bracket 63 so as to be rotatable about the rotation center. The adjustment bracket 63 is a push rod 64 of the baby carriage 2.
Mounted on. The pin 62 is the back portion 4 described above.
The position is different from the center of rotation of the.

The adjustment bracket 63 forms a plurality of engagement projections 65 and 66 and an engagement wall 67, as best shown in FIG.

On the other hand, an engaging sleeve 68 is provided on the backrest holding member 61 so as to be movable in the longitudinal direction of the backrest holding member 61. The movement range of the engagement sleeve 68 is, as shown in FIG. 17 well, a pin 69 held by the engagement sleeve 68 and a longitudinal guide hole 70 provided in the backrest holding member 61 to receive the pin 69. Stipulated by At one end of the engaging sleeve 68, an engaging portion 71 that selectively engages the above-described engaging protrusions 65 and 66 is provided. The spring 72 is fixed to a part of the engagement sleeve 68 and the backrest holding member 61 in order to bias the engagement sleeve 68 so that the engagement portion 71 moves in a direction in which the engagement portion 71 engages with the engagement protrusions 65 and 66. And the contact member 73. On the other end of the engagement sleeve 68, an operation portion 74 for operating the engagement sleeve 68 in a direction in which the engagement portion 71 moves away from the engagement protrusions 65 and 66 against the elasticity of the spring 72. Is provided.

In this manner, the engagement sleeve 68 is moved against the elasticity of the spring 72 by putting a finger on the operation portion 74, etc., and the engagement portion 71 is separated from the engagement protrusions 65 and 66. Then, the backrest holding member 61 becomes the pin 6
It becomes possible to rotate about 2. And in FIG.
As shown in FIG. 13, when the engaging portion 71 is engaged with the engaging protrusion 65, the backrest holding member 61, as shown in FIG.
Fixed in the most upright position. In addition, the engaging portion 71
14 engages with the engaging projection 66, the backrest holding member 61 is fixed in an intermediate inclined state, as shown in FIG. Furthermore, when the engagement sleeve 68 contacts the engagement wall 67, as shown in FIG.
1 is fixed in the most fallen state.

The lower end portion of the side guard core material 11 described above is shown in phantom lines in FIGS. 16 and 17. The lower end of the side guard core material 11 is held by the pin 62.

The upper end of the backrest holding member 61 is shown in FIG. The backrest holding member 61 includes the backrest portion 4
Is connected to the backrest portion 4 via a connecting mechanism formed of a combination of an elongated hole 75 extending in the extending direction of the and a pin 76 movably received in the elongated hole 75. More specifically, a pin 76 is provided at the upper end of the backrest holding member 61. On the other hand, the long hole 75 is provided in the connecting bracket 77 attached to the side portion of the backrest plate 17 which is a part of the backrest core material 9 included in the backrest portion 4. The connecting bracket 77 is attached to the backrest plate 17 so as to be rotatable around the pin 78. The rotation around the pin 78 enables bending of the backrest core material 9 as shown in FIGS. 10 and 11 described above.

Incidentally, in the connecting mechanism comprising the combination of the elongated hole 75 and the pin 76 for connecting the backrest holding member 61 and the backrest portion 4, the elongated hole has a backrest holding member contrary to the illustrated embodiment. It may be provided on the 61 side and the pin may be provided on the backrest 4 side.

As shown by an imaginary line in FIG. 18, the upper end of the side guard core material 11 is located between the backrest holding member 61 and the connecting bracket 77, and is held by the pin 76. Therefore, the side guard core material 11 is
It operates integrally with the backrest holding member 61.

As shown in FIGS. 12 to 16, in the adjusting bracket 63, the control member 8 is rotated so that the pin 79 positioned rearward of the pin 62 is rotated.
0 is provided. FIG. 18 shows the upper end of the control member 80. The control member 80 is rotatably connected to the head guard portion 5 via a pin 81. More specifically, the head guard core material 10 included in the head guard portion 5
The control member 80 is rotatably connected via a pin 81 to a connecting bracket 82 attached to a side portion of the head guard plate 20 which is a part of the. The connecting bracket 82 is
It is connected to the head guard plate 20 via the pin 83. Therefore, the connecting bracket 82 is rotatable with respect to the head guard plate 20 about the pin 83. This rotation allows the head guard core material 10 as shown in FIGS. 10 and 11 to be bent forward.

The above-mentioned head guard section 5 and control member 80
The connecting point between the head guard portion 5 and the backrest portion 4, that is, the pin 81 is the hinge tape 27-.
It is located on the back side of the backrest 4 with respect to the hinge axis given by 29.

As described above, the backrest portion 4, and more specifically the backrest core material 9, is held via the belt 42 with respect to the main body portion of the baby carriage 2, and is long with respect to the backrest holding member 61. Since it is held via the connecting mechanism formed by the combination of the hole 75 and the pin 76, it can move in the extending direction.

As shown in FIG. 13, when the backrest core material 9 is most raised, the headguard core material 10 and the backrest core material 9 are substantially aligned on one plane. The pin 76 is located at one end of the elongated hole 75, that is, the upper end.

Next, as shown in FIG. 14, when the backrest core material 9 is in an intermediate inclined state, the control member 80
However, the backrest core 9 is pulled up through the head guard core 10. That is, the backrest core material 9 is moved to the upper end side in the extending direction. At this time, the pin 76 only moves to the other end, that is, the lower end side of the elongated hole 75, and the operation of the backrest holding member 61 is not transmitted to the backrest core material 9. Therefore, the state in which the head guard core material 10 and the backrest core material 9 are substantially aligned on one plane is maintained.

Next, as shown in FIG. 15, when the backrest core member 9 is in the most tilted state, the pin 76 is already located at the lower end of the elongated hole 75, so that the operation of the backrest holding member 61 is the backrest. It is transmitted to the core material 9, whereby the backrest core material 9 is further moved to the lower end side thereof. At this time,
Since the pin 81 is located on the back side of the backrest portion 4 with respect to the hinge axis provided by the hinge tapes 27 to 29, and the position of the pin 81 is maintained by the control member 80, the above-described movement of the backrest core material 9 is prevented. Accordingly, the head guard core material 10 is rotated and brought to a state of standing up from the upper end of the backrest core material 9. In this way, as shown in FIG. 2, a state in which the head guard portion 5 stands up from the upper end of the backrest portion 4 is obtained.

On the contrary, when the state shown in FIG. 15 is returned to the state shown in FIG. 13, the head guard core material 10 is
The backrest core 9 is brought into a state of being substantially aligned with one plane. When the state shown in FIG. 15 is returned to the state shown in FIG. 14, the backrest core material 9 is returned to the intermediate inclined state, but the headguard core material 10 rises from the upper end of the backrest core material 9. Will be maintained. Therefore, as shown in FIG. 14, in order to bring the head guard core material 10 into alignment with the backrest core material 9 on substantially one plane, the head guard core material 10, that is, the head guard portion 5, is directly subjected to a force. In addition, forcibly rotating this is performed. Note that once the state shown in FIG. 13 is restored and then the state shown in FIG. 14 is entered again, the above-described operation on the head guard portion 5 is unnecessary.

In the embodiment described above, the backrest core material 9
Has three back plates 15 to 19 and the head guard core 10 has three head guards 18 to 20, but the number of divided backrest cores and head guard cores is arbitrary. .

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire baby carriage 2 having a seat 1 according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the entire baby carriage 2 shown in FIG. 1, showing a state in which the backrest portion 4 is most tilted.

FIG. 3 is a view corresponding to FIG. 1 and shows a state in which a cover sheet 7 of the seat 1 is removed.

FIG. 4 is a view corresponding to FIG. 2 and shows a state in which a cover sheet 7 of the seat 1 is removed.

5 is a perspective view showing a folded state of the baby carriage 2 shown in FIG. 1, showing a state in which a cover sheet 7 of the seat 1 is removed.

6 is a perspective view showing a configuration related to the seat 1 shown in FIG.

7 is a perspective view showing a configuration related to the seat 1 shown in FIG.

8 is a sectional view taken along the line VIII-VIII in FIG.

9 is a cross-sectional view taken along the line IX-IX in FIG.

10 is a perspective view showing the configuration shown in FIG. 6, showing a state during the folding operation of the baby carriage 2. FIG.

11 is a perspective view showing a configuration related to a seat 1 of the baby carriage 2 shown in FIG.

12 is a side view showing the baby carriage 2 shown in FIG. 4 partially broken or omitted.

13 is a side view showing a mechanism for changing the inclination angle of the backrest core material 9, showing a state in which the backrest core material 9 is most raised. FIG.

FIG. 14 is a view corresponding to FIG. 13, showing an intermediate tilted state of the backrest core material 9.

FIG. 15 is a view corresponding to FIG. 13, showing a state in which the backrest core material 9 is most tilted.

16 is a side view showing an enlarged main part of FIG.

17 is a cross-sectional view taken along the line XVII-XVII in FIG.

FIG. 18 is a perspective view showing the vicinity of the upper end of the backrest core material 9 in the state of FIG.

[Explanation of symbols]

 1 Seat 2 Baby carriage 3 Seat portion 4 Backrest portion 5 Headguard portion 9 Backrest core material 10 Headguard core material 15-17 Backrest plate 18-20 Headguard plate 21-29 Hinge tape 30-41 End surface

Claims (2)

[Claims] 1. A seat portion, a backrest portion that is provided so as to rise from a rear end of the seat portion and whose inclination angle can be changed, and a head guard portion that is rotatably connected to an upper end of the backrest portion. In the state in which the backrest portion is relatively upright, the backrest portion and the head guard portion are substantially aligned on one plane, while the headrest portion is in the most tilted state. Is in a state of rising from the upper end of the backrest portion, and the backrest portion and the head guard portion are respectively shaped by a plate-like backrest core material and a headguard core material made of a material having relatively high rigidity. The backrest core member and the head guard core member are maintained in order to allow the folding operation in the width direction of the baby carriage,
A stroller seat comprising a plurality of backrest plates and a plurality of head guard plates, each of which is divided by at least one dividing line extending parallel to a side surface of the baby carriage, wherein the plurality of backrest plates and the plurality of headguard plates are provided. The backrest plate and the head guard plates are hinge-connected to each other on the back side, and the backrest plate and the headguard plates are hinge-connected on the front side, respectively. 2. The plurality of backrest plates and the plurality of headguard plates have end faces that abut one another when they are substantially aligned on one plane. Baby carriage seat.