JP4397475B2 - Baby seat and stroller - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a baby seat used for a stroller or the like and a stroller equipped with the baby seat.
[0002]
[Prior art and problems to be solved by the invention]
In general, various baby strollers that are used when taking infants outdoors for walks, shopping, and the like that can be folded and stored and carried easily are provided and put into practical use. By the way, in a stroller in which a baby seat composed of a seat plate on which an infant sits, a back plate that holds the infant's back and a headrest that protects the head is attached to the stroller body, in order to fold the stroller compactly It is necessary to fold down the back plate to the seat plate side.
[0003]
However, side plates for protecting the infant from moving to the left and right more than necessary are provided on both sides of the back plate, so when the back plate is folded to the seat plate side, There is a problem that the seat cannot be folded compactly because the plate is sufficiently folded to the seat plate side. That is, for example, when the width of the side plate is narrower than the seat surface, when the back plate is tilted to the seat plate side, if the top edge of the side plate contacts the seat plate, no further folding is possible, or If the thickness of the seat plate is thinner than the height of the side plate, the thickness of the folded part cannot be less than the height of the side plate. There are problems such as being restricted by the height and being unable to fold the seat portion sufficiently compactly.
[0004]
In addition, by swinging the handrail of the stroller in the front-rear direction of the seat plate, the attachment position can be freely moved to the rear or front of the stroller body, so that it can be pushed from the back of the infant or in the face-to-face state However, there are cases where the direction-changing wheel is located behind the stroller traveling direction and may not be able to run smoothly when it is in a face-to-face pressed state. There is.
[0005]
In view of this, it has also been proposed that a seat on which an infant rides can be freely attached to and detached from a stroller body so that the seat can be selectively changed to a facing state or a back surface state.
[0006]
However, in the stroller as described above, the first invention has a problem that the locking mechanism between the baby seat and the stroller body is complicated and the attachment and detachment thereof is not always easy. An object of the present invention is to obtain a baby seat that can be folded. Another object of the second invention is to obtain a baby stroller that can attach and detach the baby seat to and from the baby stroller body very easily.
[0007]
[Means for Solving the Problems]
The first invention includes a seat plate which infant sits, a back plate for holding the back of the infant, in baby seat having a headrest for protecting the head, the back plate, the swing-to the seat plate fixably mounted, on both sides of the back plate, side plates is mounted to protect the infant, on both sides of the back plate, one end of which is pivotally attached to the seat plate, is a shaft which swings with the back plate The base of the side plate is fitted to each shaft so as to be slidable in the axial direction and rotatable about the axis, and a pin protruding from one of the shaft and the side plate is provided. the shaft and engaged with the other to form a spiral guide groove of the side plate, by such pivoting the side plates by sliding in the axial direction of the side plate, the side plates , Characterized in that from conjunction with upright the folding operation to the seat plate direction of the back plate to swing to the back plate side.
[0008]
A second invention is a stroller in which the above-described baby seat is detachably attached to the stroller body in a face-to-face state or a rear surface state, and is attached to the armrest of the stroller body so as to protrude at least outward. energized been locking pin is provided on the locking pin, characterized in that so as to lock the locking hole provided in the armrest outer side wall of the baby seat attached to the armrest rod.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0010]
In FIG. 1, reference numeral 10 denotes a stroller body, which includes a pair of left and right front legs 12 having a front wheel 11, a pair of left and right rear legs 14 having a rear wheel 13, a hand barb 15 bent substantially in a U shape, and a pair of left and right legs. The armrest rod 16 and the front side connecting member 17 that also serves as a footrest plate. One end of an armrest rod 16 is pivotally attached to each of the left and right front portions of the hand bar 15, and the other end of each armrest rod 16 is pivotally attached to the front leg 12. The left and right rear legs 14 are pivotally attached to the front part of the armrest rod 16 at the upper ends thereof, and the locking piece 15a is provided at the middle part of the left and right rear legs 14 so as to be able to advance and retreat at the front end of the hand pusher 15. Can be disengaged. On the other hand, the left and right rear legs 14 are connected by a rear connecting member 18, and the left and right front legs 12 are connected to each other by the front connecting member 17. Further, the front end of the connecting bar 19 is pivotally attached to the middle portion of each front leg 12, and the rear end of the connecting bar 19 is an L-shaped bracket 20 having both ends pivotally attached to the hand bar 15 and the rear leg 14, respectively. It is pivotally attached to the middle part.
[0011]
As shown in FIG. 1, the stroller body 10 is held in a usable state by locking the locking piece 15 a at the tip of the hand pusher 15 to the middle part of the rear leg 14. When the engaging piece 15a at the tip of the hand bar 15 is disengaged from the rear leg 14 by operating the operating device A provided on the arm 15, the armrest bar 16, the front leg 12, and the rear leg 14 are disengaged. , And the connecting bar 19 can swing, and can be folded for convenience of carrying.
[0012]
By the way, the baby seat 21 is mounted and fixed to the stroller body 10 by placing the armrest portion 22a of the baby seat 21 on the armrest 16 from above. In this case, by selectively mounting the baby seat 21 in the stroller body 10 in the front-rear direction, it is possible to obtain a hand-pressed state from the back of the infant or a face-to-face pressed state. FIG. 2 shows a hand-pressed state from the back, and FIG. 3 shows a hand-pressed state facing each other.
[0013]
FIG. 4 is a diagram showing a schematic configuration of the baby seat 21. The baby seat 21 is mainly composed of a seat plate 22 on which an infant sits, a back plate 23 that holds the back, and a headrest 24 that protects the head. .
[0014]
Armrests 22a are integrally formed on both sides of the seat plate 22, and arc-shaped guard arms 25 are stretched between the front ends of the left and right armrests 22a. Further, a foot support plate 26 is attached to the front edge portion of the seat plate 22 so as to be swingable and fixed around a horizontal axis, and the rear edge portion of the seat plate 22 is shown in FIGS. The lower end of the back plate 23 is pivotally attached to a horizontal shaft 28 mounted on brackets 27 erected on both sides of the seat plate 22. The back plate 23 can be fixed to a plurality of inclined positions with respect to the seat plate 22 according to the infant's condition by a fixing device (not shown). A headrest 24 is pivotally attached to the upper end portion of the back plate 23 by a horizontal shaft 29 so as to be swingable.
[0015]
A shaft 30 extending along both side edges of the back plate 23 is provided on both sides of the back plate 23, and one end of the shaft 30 is provided with a pin 31 on a bracket 27 erected on the seat plate 22. The other end of the shaft 30 is pivotally attached to the side surface of the headrest 24.
[0016]
A cylindrical portion 32 a formed at the base end of the side plate 32 is slidably and rotatably fitted to the shaft 30, and a pin 33 protruding from the shaft 30 is connected to the side 30. It is engaged with a spiral guide groove 34 formed in the cylindrical portion 32 a of the plate 32. The side plate 32 is in a vertical state when the baby seat 21 is in use, that is, until the back plate 23 is substantially horizontal with the seat plate 22 from a certain tilt angle position. In addition, one end of a restriction shaft 35 is attached to the end of the cylindrical portion 32a of the side plate 32 so as to be able to swing to some extent, and the other end of the restriction shaft 35 is connected to the side plate of the seat plate 23. The shaft 30 is pivotably attached to a position a near the back plate 23 from the position of the pin 31 which is a pivot point of the shaft 30.
[0017]
Thus, when the back plate 23 is rotated so as to be folded around the horizontal axis 28 toward the seat plate 22, the shaft 30 rotates about the pin 31 together with the side plate 32 accordingly. However, in this case, since the pin 31 and the pivot position a of the restriction shaft 35 are displaced forward and backward, the side plate 32 is slid in the axial direction with respect to the shaft 30 via the restriction shaft 35, and the pin 33 And the guide groove 34 are engaged to rotate the side plate 32 from the vertical state to the substantially horizontal state (see FIG. 6, two-dot chain line).
[0018]
Therefore, when the back plate 23 is rotated so as to be folded toward the seat plate 22, the side plate 32 is folded from the vertical state to the substantially horizontal state. The folding position is not restricted and can be folded compactly. FIG. 7 shows the baby sheet folded. FIG. 8 shows an example of a state in which the stroller with the baby seat 21 as described above is folded on the stroller body 10.
[0019]
By the way, although it demonstrated as a baby seat for strollers in embodiment of the said invention, of course, it can apply also to the child seat for passenger cars.
[0020]
In the above embodiment, the cylindrical portion 32a of the side plate 32 is fitted to the shaft 30, and the pin 33 protruding from the shaft 30 is engaged with the guide groove 34 of the cylindrical portion 32a. A pin projecting inward may be provided in the cylindrical portion 32a, and the pin may be engaged with a guide groove provided in the shaft. Further, a sliding member connected to the restriction shaft 35 is provided in or on the outer periphery of the shaft 30 so that the side plate 32 can only rotate around the shaft 30. The sliding member and the side plate are connected to a pin and a guide groove. You may connect by engagement. In this case, only the rotation can be performed by sliding the sliding member without sliding the side plate.
[0021]
By the way, as shown in FIG. 1 etc., the baby seat 21 is mounted on the stroller body 10 by placing and engaging the armrest portion 22a of the baby seat 21 on the armrest 16 of the stroller body 10. A guide member for guiding the armrest portion 22a of the baby seat 21 is configured by the connecting member 40 for connecting the hand bar 15 and the armrest rod 16 of the main body 10 and the connecting member 41 for connecting the armrest rod 16 and the front leg 12. .
[0022]
That is, the mutually opposing surfaces of the connecting members 40 and 41 are formed in a V shape. On the other hand, the lower surface of the armrest portion 22a of the baby seat 21 is formed with a recess 42 (FIG. 9) that engages with the armrest 16 and the front edge portion 43a and the rear edge portion of at least the outer plate of the armrest portion 22a. 43b is formed in a V shape corresponding to the V shape formed by the connecting members 40 and 41.
[0023]
Thus, when the baby seat 21 is attached to the stroller body 10, when the baby seat 21 is lowered with respect to the stroller body 10, the front edge portion 43a and the rear edge portion 43b of the armrest portion 22a of the baby seat 21 are connected. Guided by a V-shaped guide portion formed by the members 41, 40, the baby seat 21 is easily placed at a predetermined position of the stroller body 10.
[0024]
As shown in FIG. 9, the armrest 16 is provided with a locking pin 45 urged so as to protrude outward by a spring 44, and on the outer wall of the armrest 22 a of the baby seat 21. A locking hole 46 into which the locking pin 45 enters and engages is formed. A predetermined amount can be moved in the locking hole 46 in the axial direction of the locking hole 46, and by contacting the tip of the locking pin 45, the tip is outward from the outer surface of the armrest 22 a. A protruding lock release button 47 is provided.
[0025]
Then, as described above, when the baby seat 21 is lowered and the recess 42 is placed and engaged at a predetermined position of the armrest 16 of the stroller body 10, the locking pin 45 enters and engages in the locking hole 46. The baby seat 21 is fixed.
[0026]
On the other hand, when the baby seat 21 is removed from the stroller body 10, when the latch release button 47 is pressed and the latch pin 45 is pushed inward against the spring 44, the latch pin 45 and the latch hole 46 are pressed. The baby seat 21 can be easily lifted upward from the stroller body 10.
[0027]
In the above embodiment, the baby seat is attached to the armrest saddle. However, the connecting members 40 and 41 can be integrally formed and used as an armrest saddle.
[0028]
【The invention's effect】
As described above, in the first invention, the back plate is attached to the seat plate so as to be swingable / fixable, and the side plates for protecting the infant on both sides of the back plate are arranged in the longitudinal axis of the back plate. Since the side plate swings from the upright state to the back plate side in conjunction with the folding operation of the back plate toward the seat plate, the side plate is folded when the baby seat is folded. The folding size can be folded compactly without being influenced by the height of the side plate.
[0029]
According to a second aspect of the present invention, the armrest of the stroller body is provided with a latch pin that is biased so as to protrude at least outward, and the armrest of the baby seat that is engaged with the armrest is disposed on the latch pin. Since the locking hole provided in the wall is locked, the baby seat can be fixed easily and reliably. In addition, when the lock release button is provided on the armrest of the baby seat, the engagement between the lock pin and the lock hole can be easily released, and a baby seat guide is formed on the armrest. In this case, the baby seat can be attached to the predetermined position very easily and reliably.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a stroller according to the present invention.
FIG. 2 is a view showing a state in which the baby seat is attached to the stroller body in the back state.
FIG. 3 is a view showing a state in which a baby seat is attached to a stroller body in a facing state.
FIG. 4 is a perspective view showing a configuration of a baby seat according to the present invention.
FIG. 5 is a diagram showing a configuration of a mounting portion of a side plate of a baby seat according to the present invention.
FIG. 6 is a schematic configuration and operation explanatory diagram of the baby seat of the present invention.
FIG. 7 is a perspective view showing a state where the baby seat is folded.
FIG. 8 is a view showing a state after folding the stroller to which the baby seat of the present invention is attached.
FIG. 9 is a cross-sectional view showing an engagement portion between an armrest rod and an armrest portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Stroller body 11 Front wheel 12 Front leg 13 Rear wheel 14 Rear leg 15 Hand barb 16 Armrest bar 19 Connection bar 20 Bracket 21 Baby seat 22 Seat plate 22a Armrest part 23 Back plate 24 Headrest 25 Guard arm 26 Foot rest plate 27 Bracket 30 Shaft 32 Side plate 32a Cylindrical portion 33 Pin 34 Guide groove 35 Restriction shaft 40, 41 Connecting member 42 Recess 43a Front edge portion 43b Rear edge portion 44 Spring 45 Locking pin 46 Locking hole 47 Lock release button A Operating device

Claims (5)

In a baby seat that has a seat plate on which an infant sits, a back plate that holds the back of the infant, and a headrest that protects the head,
The back plate is mounted so as to be swingable / fixable with respect to the seat plate,
Side plates for protecting infants are mounted on both sides of the back plate,
On both sides of the back plate, one end is pivotally attached to the seat plate, and a shaft that swings with the back plate is disposed,
A base portion of the side plate is fitted to each shaft so as to be slidable in the axial direction and rotatable about the axis, and a pin projecting from one of the shaft and the side plate is attached to the shaft and the shaft. The side plate is engaged with a spiral guide groove formed on the other side of the side plate, and the side plate is swung by sliding in the axial direction of the side plate. A baby seat that swings from an upright state toward the back plate in conjunction with the folding operation toward the seat plate. And characterized in that slidably fitted to the side plate in the shaft, one end is connected to the other end of the regulating shaft that is pivotally attached to the seat plate at the pivot point different from the position of the shaft The baby sheet according to claim 1. A baby stroller according to claim 1, wherein the baby seat is detachably attached to a stroller body in a face-to-face state or a rear surface state.
The armrest rod of the stroller body is provided with a locking pin biased to protrude at least outward,
A stroller characterized in that a locking hole provided in an outer wall of an armrest portion of a baby seat attached to the armrest saddle is locked to the locking pin.   A locking hole provided in the armrest side wall of the baby seat is provided with a locking release button that presses the locking pin and releases the locking between the locking pin and the locking hole. The stroller according to claim 3.   The stroller according to claim 3 or 4, wherein a guide portion is formed on the armrest of the stroller body so that the front and rear edges of the armrest portion of the baby seat come into contact with each other.

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