JP2001328542A - stroller - Google Patents

Abstract

(57) [Summary] [PROBLEMS] When a baby is sitting on a baby seat, it is difficult to operate the lock release lever or the operation becomes impossible, and the lock is released carelessly and the baby seat is Make sure that it does not fall out of the stroller itself. SOLUTION: The present invention relates to a stroller in which a baby seat is detachably attached to a stroller main body, and a lock release lever for unlocking the baby seat and the stroller main body is provided on a lower surface of a seat plate of the baby seat. Provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stroller in which a baby seat is detachably mounted on 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] By the way, in order for the baby seat to be in the back state or the facing state, the push rod of the stroller is swung in the front-rear direction of the seat plate so that the push rod is moved to the rear of the baby body or to the rear. May move freely in the front, but in such a case, when the hand is pressed face-to-face, the turning wheel is located backward in the traveling direction of the stroller, and traveling is smooth. There is a problem that it may not be able to be performed.

In view of the above, the baby seat itself on which the baby rides is made detachable from the stroller body so that the baby seat can be selectively changed to the facing state or the back state, and the armrest of the baby seat is attached to the stroller body. There has been proposed one that is locked by a pin, a hook, or the like.

However, in the case where the above-mentioned lock mechanism is provided in the armrest portion, from the standpoint of the stroller user, it is easy to see and operate, but since the lock can be easily released, the lock is careless. There is a problem that there is a possibility of being canceled.

In view of the above, the present invention makes it difficult or impossible to operate the unlocking lever when a baby or infant is riding on the baby seat, and the unlocking is performed carelessly. The aim is to obtain a stroller in which such things do not occur.

[0007]

The invention according to claim 1 is
In a stroller in which a baby seat is detachably attached to a stroller main body, an unlock lever for releasing a lock between the baby seat and the stroller main body is provided on a lower surface of a seat plate of the baby seat.

According to a second aspect of the present invention, in the first aspect of the present invention, the unlocking lever is movable back and forth along the lower surface of the seat plate of the baby seat. Wherein a hook member engaging with a stay connecting the left and right sides of the stroller body is provided.

According to a third aspect of the present invention, in the second aspect, the lock member is operated by operating the lock release lever so that the hook of the hook member is disengaged from the stay connecting the left and right sides of the stroller body. In this case, there is provided a lock release preventing piece which is operated so as to protrude upward from the surface of the seat plate of the baby seat.

[0010] The invention according to claim 4 is the invention according to claim 1 or 2.
In the described invention, the seat plate of the baby seat is provided with an unlock prevention pin urged so as to protrude upward from the surface of the seat plate, and the unlock lever is provided when the baby seat is locked. An opening into which the lower end of the lock release prevention pin can be inserted is formed.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIG.
Reference numeral 0 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,
It is composed of a push rod 15 bent in a substantially U-shape, a pair of left and right armrest rods 16, and a front connecting member 17 also serving as a footrest. One end of an armrest rod 16 is pivotally attached to each of the left and right front portions of the push rod 15, and a front leg 12 is pivotally attached to the other end of each armrest rod 16. The upper ends of the left and right rear legs 14 are pivotally connected to armrest rods 16, and a locking piece 15 a is provided at an intermediate portion between the left and right rear legs 14 so as to be able to advance and retreat at the front end of the push rod 15. It is possible. On the other hand, the left and right rear legs 14 are connected to a rear connecting member 18.
The left and right front legs 12 are connected to each other by the front connection member 17. In addition, each front leg 12
The front end of a connecting bar 19 is pivotally connected to an intermediate portion of the connecting bar 19.
4 is pivotally attached to an intermediate portion of an L-shaped bracket 20 pivotally attached to the bracket.

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 operation device A provided on the push rod 15, the locking piece 15 at the tip of the push rod 15 is operated.
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.

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 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 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 support 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 22. 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
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.

By the way, 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 engaged with the concave portion 40 of the armrest rod 16 by guide engagement. 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.

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, the baby seat 21 is prevented from rotating even when an infant is riding on the back plate 23 of the baby seat 21. 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. 9 and 10 show the locking device for the baby seat 21.
The left and right armrest rods 1 of the stroller body 10
A hook member 50 is provided which is engaged with and disengaged from a stay 41 connecting the first and second stays 6. 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.

As shown in FIGS. 9 and 10, on the lower surface of the seat plate 22, there is provided a plate-shaped unlocking lever 54 which is supported by a guide piece 53 and which can be moved forward and backward by being guided by the guide piece 53. ing. Bosses 55 are provided at both ends of the distal end of the lock release lever 54, and the boss 55 has a hook 50 a of the hook member 50.
A pin 56 protruding from the vicinity of is inserted.

As shown in FIG. 10, 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 connected to each other. 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. 9), and the hook 50a is held in a state of engaging with the stay 41.

When the lock release lever 54 is pulled against the spring 59 as shown by a two-dot chain line in FIG. 9, the hook member 50 swings clockwise in FIG. The hook 50a is released from the stay 41, 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 the two-dot chain line in FIG.
It protrudes upward from the upper surface of the seat plate 22.

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 the figure. Therefore, when the hook 50a is not completely engaged with the stay 41, that is, when the lock is incomplete, the hook 50a operates in the lock direction due to the weight of the baby and the lock is completely performed. Can be improved.

FIG. 11 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 cylindrical projection 22b is integrally provided at the tip of the arm, and the recess of the guard arm 25 is engaged with the projection 22b. As shown in FIG. 12, the projection 22b is made of metal. A cap 65 is fitted. A locking member 66 provided on the protruding portion 22b is urged by a spring 67 so as to partially protrude laterally from the outer surface of the cap 65, and the locking member 66 engages the guard arm 25. It engages with a notch (not shown) to prevent the guard arm 25 from falling off. Thus, the protrusion 22
b is reinforced by the cap 65, and damage to the projection 22b in the attachment portion of the locking member 66 and the like can be reliably prevented.

[0036]

As described above, the present invention relates to a stroller in which a baby seat is detachably mounted on a stroller main body.
Since the lock release lever is provided to release the lock between the baby seat and the stroller body, the operation of the lock release lever is relatively troublesome when an infant is on the seat plate, eliminating the possibility of erroneous operation. Can be. In the case where the lock release prevention piece or the lock release prevention pin is provided, when the infant is on the seat plate, the weight of the lock release lever makes it difficult for the lock release lever to move or is completely prevented, so that the lock release cannot be performed. It can be prevented from being performed easily.

[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 view showing a lock device for locking the baby seat to the stroller main body.

FIG. 10 is a plan view showing one half of a lock release lever in the lock device shown in FIG. 9;

FIG. 11 is a view showing another example of the lock release prevention device.

FIG. 12 is a cross-sectional view illustrating 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 23 Backboard 41 Stay 42 Groove 43 Locking member 50 Hook member 50a Hook 50b Lock release prevention piece 54 Lock release lever 60 Lock release pin 65 Metal cap

Claims (4)

[Claims] In a stroller wherein a baby seat is detachably mounted on a stroller body, an unlock lever for unlocking the baby seat and the stroller body is provided on a lower surface of a seat plate of the baby seat. A stroller characterized by the following. 2. A lock release lever is movable back and forth along a lower surface of a baby seat plate, and one end of the lock release lever has a hook engaged with a stay connecting the left and right sides of the stroller body at a retracted position. The stroller according to claim 1, wherein a member is provided. 3. When the lock release lever is operated to release the hook of the hook member from the stay connecting the left and right sides of the stroller body, the hook member projects upward from the surface of the seat plate of the baby seat. 3. The stroller according to claim 2, further comprising a lock release prevention piece that is actuated. 4. The seat plate of the baby seat is provided with a lock release preventing pin urged to protrude upward from the surface of the seat plate, and the lock release lever has a lock release lever when the baby seat is locked. The stroller according to claim 1 or 2, wherein an opening into which a lower end of the lock release prevention pin can be inserted is formed.