JP2001328541A - Baby seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assure strength near an opening, in which a locking member is inserted, formed in a protruded portion for mounting a guard arm. SOLUTION: This baby seat having the circular guard arm detachably bridged between the ends of armrest portions formed at both sides of a seat plate on which a baby is seated comprises the upward protruded portion 22b integrally provided at the ends of the armrest portions 22a. A metal cylindrical member 65 is fitted on, at least, the outer periphery of the protruded portion 22b and locking members 66 to be engaged with locking recessed portions of the guard arm are protruded outside in part by spring members 68.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a baby seat, and more particularly to a baby seat removably attached to a stroller body.

[0002]

2. Description of the Related Art Generally, a stroller used when taking an infant outdoors for a walk, shopping, or the like, is folded so that it can be easily stored and carried as necessary. In addition, there have been proposed and put into practical use various types of devices, such as a back state in which the baby is pushed from the back of the baby or a hand-held state in which the user faces the baby.

[0003] In the baby seat of such a stroller, an arc-shaped guard arm is removably hung between the distal ends of armrests formed on both sides of a seat plate on which the infant sits. It does not slip off the sheet. That is, a projection protruding upward is formed at the tip of the armrest, and a locking pin urged outward by a spring or the like protrudes from an opening provided on a side surface of the projection. By fitting the holes formed in the lower surfaces of both ends of the guard arm into the protrusions, and engaging the locking pins provided on the protrusions with the recesses provided in the holes of the guard arm,
The guard arm is fixed.

However, in such a device, the impact force by the locking pin is applied to the opening of the projection each time the guard arm is attached or detached, so that the vicinity of the opening may be damaged. Particularly when the material of the armrest is made of a lightweight synthetic resin for weight reduction, the strength near the opening becomes a problem.

In view of the foregoing, it is an object of the present invention to provide a baby seat capable of securing strength near an opening for inserting a locking member formed on a projection for attaching a guard arm. I do.

[0006]

The invention according to claim 1 is
In a baby seat in which an arc-shaped guard arm is detachably stretched between the distal ends of armrests formed on both sides of a seat plate on which a baby sits, a protrusion projecting upward at the distal end of the armrest is provided. While being provided integrally, a metal tubular member is fitted on at least the outer periphery of the projection,
From the opening formed in the protrusion and the metal tubular member,
The locking member that engages with the locking recess of the guard arm is partially protruded outward by a spring member.

The invention according to claim 2 is characterized in that, in the invention according to claim 1, the metal tubular member is a cap that completely covers the projection.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 denotes a stroller body, 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, and a push rod 15 bent substantially in a U-shape. , A pair of left and right armrest bars 16 and a front connecting member 17 also serving as a footrest.
An armrest rod 1 is provided on each of the left and right front portions of the push rod 15.
One end of the arm 6 is pivotally connected, and the front leg 12 is pivotally connected to the other end of each armrest rod 16. The left and right rear legs 14
The upper end is pivotally connected to an armrest rod 16, and a locking piece 15 a provided at the front end of the push rod 15 at an intermediate portion between the left and right rear legs 14 so as to be able to advance and retreat is detachable. On the other hand, the left and right rear legs 14 are connected by a rear connecting member 18,
The left and right front legs 12 are connected to each other by the front connection member 17. Further, a front end of a connecting bar 19 is pivotally connected to an intermediate portion of each front leg 12, and a rear end of the connecting bar 19 has an L-shaped bracket 20 whose both ends are pivotally connected to the push rod 15 and the rear leg 14, respectively. It is pivoted in the middle.

As shown in FIG. 1, the stroller body 10 is held in a usable deployed state by locking the locking piece 15a at the tip of the push rod 15 to the intermediate portion of the rear leg 14, as shown in FIG. By operating the operating device A provided on the push rod 15, the locking piece 15 at the tip of the push rod 15
a is disengaged from the rear leg 14, the armrest rod 16,
The front leg 12, the rear leg 14, and the connecting bar 19 become swingable, and can be folded for convenient carrying.

By the way, the stroller body 10 includes:
The armrest portion 16 of the baby seat 21 is attached to the armrest rod 16.
The baby seat 21 is placed on the
Is fixed. In this case, the baby seat 21
Can be selectively turned upside down and attached to the stroller main body 10, so that the infant can be brought into a hand-pressed state from the back or a face-to-face hand-pressed state. FIG. 2 shows a manually pushed state from the back, and FIG. 3 shows a manually pushed state facing the same.

FIG. 4 is a view 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 for holding the back, and a headrest 24 for protecting the head. Have been.

An armrest 22a is integrally formed on both sides of the seat plate 22, and an arc-shaped guard arm 25 is detachably provided between the front ends of the left and right armrests 22a. That is, projections 22b projecting upward are provided at the distal ends of the left and right armrests 22a, respectively, and the projections 22b have recesses (not shown) formed on the lower surfaces at both ends of the guard arm 25. Is engaged.

At the front edge of the seat plate 22, a foot receiving plate mounting member 26 is attached so as to be able to advance and retreat.
As shown in FIGS. 5 and 6, a horizontal shaft 2 mounted on brackets 27 erected on both sides of the seat plate 22 is provided at the rear edge portion.
The lower end of the back plate 23 is pivotally connected by 8 to be swingable. The back plate 23 can be fixed to a plurality of inclined positions with respect to the seat plate 22 in accordance with the state of the baby by a fixing device (not shown). A headrest 24 is pivotally attached to the upper end of the back plate 23 by a horizontal shaft 29 so as to be swingable.

On both sides of the back plate 23, shafts 30 extending along both side edges of the back plate 23 are provided, and one end of the shaft 30 is attached to a bracket 27 which is set up on the seat plate 22. The other end of the shaft 30 is swingably connected via a pin 31 to the headrest 2.
4 on the side.

The shaft 30 has a side plate 3
A cylindrical portion 32a formed at the base end of the second plate 2 is slidably and rotatably fitted. A pin 33 protruding from the shaft 30 is formed on the cylindrical portion 32a of the side plate 32. And is engaged with the spiral guide groove 34. 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 to a certain inclined angle position. One end of a regulating shaft 35 is attached to the end of the cylindrical portion 32 a of the side plate 32 so as to be able to swing to some extent, and the other end of the regulating shaft 35 is attached to the side plate of the seat plate 23. The shaft 30 is pivotally 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.

When the back plate 23 is turned around the horizontal shaft 28 so as to be folded toward the seat plate 22, the shaft 30 together with the side plate 32 is rotated by the pins 31.
Around the center. However, in this case, the pin 31
And the pivoting position a of the regulating shaft 35 is shifted back and forth, so that the side plate 32
Is axially slid with respect to the shaft 30, and the side plate 32 is rotated from the vertical state to a substantially horizontal state by the engagement of the pin 33 and the guide groove 34 (two points in FIG. 6). See dashed line).

Therefore, when the back plate 23 is rotated so as to be folded toward the seat plate 22, the folding position of the back plate 23 is not restricted by the height of the side plate 32, and the back plate 23 is compactly folded. be able to. FIG.
2 shows a state in which the baby seat is folded. FIG. 8 shows that the baby seat 21 as described above is attached to the stroller body 10.
1 shows an example of a state in which a stroller equipped with is folded.

As shown in FIG. 1 and the like, the baby seat 21 is mounted on the stroller body 10 by placing the armrest portion 22a of the baby seat 21 on the armrest rod 16 of the stroller body 10 and engaging the same. An outer surface of the armrest rod 16 provided in the stroller body has a concave portion 40 having a lower edge formed in an arc shape at an upper portion thereof.
The outer plate formed into a shape corresponding to the concave portion 40 of the armrest portion 22a of the baby seat 21 is engaged with the concave portion 40.

The left and right armrest rods 16 of the stroller body 10 are each provided with a U-shaped pipe-shaped stay 41.
Are fixed to the right and left upper ends, respectively. On the other hand, at the lower surface of the seat plate 22 of the baby seat 21, at least one plate-shaped locking member 43 having a groove 42 which is open at the lower end and extends upward is provided.

When the baby seat 21 is mounted on the stroller main body 10, when the baby seat 21 is lowered with respect to the stroller main body 10, the outer plate of the armrest portion 22a is guided and engaged with the recess 40 of the armrest rod 16. Then, the baby seat 21 is easily placed at a predetermined position on the stroller body 10. At the same time, the groove 42 of the locking member 43 provided on the lower surface of the seat plate 22 is fitted to the stay 41 connecting the left and right armrest bars 16 of the stroller body 10, and the lower horizontal portion of the stay 41 seats the seat. A plate 22 is supported.

As shown in FIG. 9, the armrest rod 16 is provided with a locking pin 45 urged by a spring 44 so as to protrude outward. On the outer side wall, the locking pin 4
5 is formed with a locking hole 46 into which is engaged. In the locking hole 46, a predetermined amount can be moved in the axial direction of the locking hole 46, and when the locking pin 45 is in contact with the tip of the locking pin 45, the tip moves outward from the outer surface of the armrest 22a. A protruding lock release button 47 is provided.

Therefore, as described above, the baby seat 2
When the armrest portion 22a is placed and engaged at a predetermined position of the armrest rod 16 of the stroller body 10 by lowering 1, the locking pin 45 enters and engages with the locking hole 46, and the baby seat 21 is locked. . On the other hand, when removing the baby seat 21 from the stroller main body 10, when the locking release button 44 is pressed to push the locking pin 45 inward against the spring 44, the locking pin 45 and the locking hole 46 are pressed. The baby seat 21 can be easily lifted upward from the stroller main body 10 by releasing the lock due to the engagement with the baby seat 21.

In this embodiment, as described above, the armrest portion 22a of the baby seat 21 is placed on and engaged with the armrest rod 16 of the stroller body 10 and provided on the lower surface of the seat plate 22. Since the groove 42 of the locking member 43 is engaged with the stay 41, when the lock is released as described above, the back plate 23 of the baby seat 21 is
The baby seat 21 is prevented from rotating even when a baby is riding on the part. Therefore, it is possible to reliably prevent the baby seat 21 from rotating and dropping from the stroller body with the release of the lock, and the infant from falling from the stroller.

FIGS. 10 and 11 show another example of the locking device for the baby seat 21.
A hook member 50 is provided on the lower surface of the seat plate 22 to be engaged with and disengaged from a stay 41 that connects the left and right armrest bars 16 of the stroller body 10. That is, the hook member 50 has its middle portion pivotally attached to the seat plate 22 by the horizontal shaft 51. At one end of the hook member 50, a hook 50a that engages with the stay 41 is provided integrally. At the other end side, the hook member 50 swings upward from an opening 52 formed in the seat plate 22 by swinging of the hook member 50. An unlocking prevention piece 50b protruding or located on the same plane as the seat plate is integrally formed.

The lower surface of the seat plate 22 is shown in FIGS.
As shown in FIG. 5, a plate-shaped unlocking lever 54 is provided, which is supported by the guide piece 53 and can be moved back and forth by being guided by the guide piece 53. Bosses 55 are provided on both sides of the distal end of the lock release lever 54.
A pin 56 protruding from near 0a is fitted.

As shown in FIG. 11, a spring receiver 57 is provided at the rear end of the lock release lever 54, and the spring receiver 57 and a spring receiver 58 provided on the seat plate 22 are provided. A spring 59 is interposed therebetween.
Then, the lock 59 is released by the spring 59.
4 is constantly urged to be at the retracted position (the solid line position in FIG. 10), and the hook 50 a is held in a state of engaging with the stay 41.

Then, the lock release lever 54 is
When the hook member 50 is pulled against the spring 59 as shown by a two-dot chain line in FIG.
Swings clockwise at the
And the lock is released. Therefore, the baby seat 21 can be removed from the stroller body 10 by lifting the baby seat 21 upward.

When the hook member 50 is rocked by the lock release lever 54 as described above, the lock release preventing piece 50b also rocks as shown by a two-dot chain line in FIG. Protrude into.

Therefore, the seat plate 22 of the baby seat 21
In the state where the infant is riding on the upper part, the swing of the unlock prevention piece 50b is prevented by the weight of the infant,
It becomes difficult to pull the lock release lever 54, and it becomes difficult to release the lock while the baby is on the baby seat 21. Therefore, when the baby is inadvertently unlocked and the baby seat 21 is lifted while the baby is on the baby seat 21, the danger of the baby falling from the baby seat 21 can be avoided beforehand. .

When the infant rides on the baby seat 21, the unlocking prevention piece 50b is operated to swing to the position shown by the solid line in FIG. Therefore, hook 50
If a is not fully engaged with the stay 41, ie, the lock is incomplete, the weight of the
a is actuated in the locking direction to complete the locking, and in this respect also safety can be improved.

FIG. 12 is a view showing another embodiment of the lock release preventing device. An unlock prevention pin 60 is mounted on the seat plate 22 so as to be vertically movable. The seat plate 22 is formed with a concave portion 61 through which the lock release preventing pin 60 is inserted. Between the bottom surface of the concave portion 61 and a flange member 62 provided at the top end of the lock release preventing pin 60. , A spring 63 is interposed, and the lock release prevention pin 60 is urged upward.

On the other hand, the lock release lever 54 has an opening 64 into which the lower end of the lock release prevention pin 60 can be inserted when the hook 50a is engaged with the stay 41, that is, in the locked state.

When no infant is on the seat plate 22 of the baby seat, the lock release prevention pin 60
Is indicated by a two-dot chain line by the spring 63.
2, the lower end of the lock release prevention pin 60 comes out of the opening 64 of the lock release lever 54. Therefore, the lock release lever 54 is freely movable, and can be locked and unlocked by the hook 50a arbitrarily. On the other hand, when an infant rides on the seat plate 22, the unlock prevention pin 60 is pressed down against the spring 63 by the weight of the infant, and the tip of the pin 60 is opened by the opening 6 of the unlock lever 54.
4 is inserted. Therefore, the lock release lever 54
Is prevented, the hook 50a does not come off the stay 41, and unlocking is prevented. For this reason, the baby seat 21 cannot be lifted from the stroller body 10 together with the baby, and safety for the baby can be achieved.

As described above, the armrest 22a
A columnar projection 22b is integrally provided at the tip of the arm, and a guard arm 25 is attached to a locking pin 66 provided on the projection 22b.
As shown in FIG. 13, a metal cap 65 is fitted to the projection 22b. Then, the protrusion 22b and the metal cap 6
An opening 67 is formed in the side of the cap 5, and the locking pin 66 is urged by a spring 68 from the opening 67 so as to partially protrude laterally from the outer surface of the cap 65. The locking pin 66 is engaged with a locking recess (not shown) provided in the hole of the guard arm 25 to prevent the guard arm 25 from falling off. Thus, the protrusion 22b is reinforced by the cap 65, and the locking pin 6
Protruding portion 22b in the vicinity of the opening 67 through which the base member 6 is inserted.
Can be reliably prevented.

[0036]

According to the present invention, as described above, a metal cylindrical member is fitted at least in the vicinity of the opening for inserting the locking member of the projection for attaching the guard arm, which is projected from the armrest. Therefore, the strength in the vicinity of the opening can be ensured, and the vicinity of the opening can be sufficiently prevented from being damaged by the impact of the locking member when attaching and detaching the guard arm.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a stroller according to the present invention.

FIG. 2 is a diagram showing a state in which the baby seat is attached to the stroller body in a rear state.

FIG. 3 is a view showing a state in which the baby seat is attached to the stroller body in a facing state.

FIG. 4 is a perspective view showing the configuration of the baby seat according to the present invention.

FIG. 5 is a diagram showing a configuration of a mounting portion of a side plate of the baby seat shown in FIG. 4;

FIG. 6 is a schematic configuration and operation explanatory view of a baby seat.

FIG. 7 is a perspective view showing a state in which the baby seat is folded.

FIG. 8 is a view showing a state after folding the stroller to which the baby seat is attached.

FIG. 9 is a sectional view showing a lock portion between the armrest rod and the armrest portion.

FIG. 10 is a view showing another example of a device for locking a baby seat to a stroller main body.

FIG. 11 is a plan view showing one half of a lock release lever in the lock device shown in FIG. 10;

FIG. 12 is a diagram showing another example of the lock release prevention device.

FIG. 13 is a cross-sectional view showing an example of a guard arm mounting projection.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Stroller main body 16 Armrest rod 21 Baby seat 22 Seat plate 22a Armrest part 22b Projection part 23 Back plate 41 Stay 42 Groove 43 Locking member 45 Locking pin 46 Locking hole 50 Hook member 50a Hook 50b Lock release prevention piece 54 Lock release Lever 60 Lock release pin 65 Metal cap 66 Lock pin 67 Opening 68 Spring

Claims (2)

[Claims] 1. A baby seat in which an arc-shaped guard arm is detachably provided between the distal ends of armrests formed on both sides of a seat plate on which a baby sits, the distal end of the armrest being upward. A protruding projection is integrally provided, and a metal tubular member is fitted on at least the outer periphery of the projection, and the guard arm is engaged with an opening formed in the projection and the metal tubular member. A baby seat, wherein a locking member that engages with the stop recess is partially protruded outward by a spring member. 2. The baby seat according to claim 1, wherein the metal tubular member is a cap that completely covers the protrusion.