JPH092282A - Stroller - Google Patents

Abstract

PURPOSE: To provide a seat reclining system for a stroller that can operate stepless reclining adjustment smoothly and easily in a single operation with one hand, with little center-of-gravity movement so as not to spoil a stable feeling. CONSTITUTION: A stroller is provided with a lateral pair of arm frame bodies having front wheels 3A and rear wheels 3B, a lateral pair of handle parts 10 with the upper ends connected to the lower ends of handle pipes 9, and a chassis 13 with a seat face 11 mounted thereon. Such a stroller is provided with a seat reclining means formed by providing the seat face 11 with a seat back 12 in the freely inclined and reset state and mounting the seat face 11 slidably so as to be locked to the chassis 13 in a appropriate advance-retreat position interlockingly with inclined-reset action of the seat back 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable stroller for carrying a baby when going out for shopping, walking, traveling, etc.

[0002]

2. Description of the Related Art In recent years, the seat reclining system for strollers is one of the most frequently used operations, and makes it possible to keep the baby soft and stable when going out, getting on or off a train or car, in an escalator or in a crowded elevator. It is an indispensable condition to put it on like a mother's hand or chest. Although such a seat reclining method is a very important function for a baby, it has been neglected until now. For example, as shown in FIG.
In the conventional seat reclining method, when reclined, the movement of the center of gravity is large, so that the baby's head moves backward rather than the rear wheel. Therefore, conventionally, as a stroller of this type, a method of adjusting the tension of a hammock with a belt or the like has been widely used.

[0003]

However, in the conventional seat reclining system, the position of the head comes behind the axle of the rear wheel when the baby is on the seat,
There was an undeniable risk associated with instability in which the front wheel lifted up due to the backward movement of the center of gravity behind the rear wheel. Further, in the case of the hammock type, the baby's back is inevitably small and round, which makes it difficult to move and is not good for the spine because of health issues.

Therefore, the present invention was made in view of the above existing circumstances, and is structurally effortless in a stroller seat reclining system of a stroller and can be smoothly and easily stepless with one touch with one hand. It is an object of the present invention to provide a stroller having a seat reclining system that can perform a reclining adjustment operation and that does not impair the sense of stability with little movement of the center of gravity when a baby is placed.

[0005]

In order to achieve the above-mentioned object, in the present invention, a pair of left and right arm frame bodies having front wheels and rear wheels, and lower ends of handle pipes are respectively connected to upper ends. In a stroller including a pair of left and right handle parts and a chassis on which the seat surface is mounted, a backrest is provided on the seat surface so that the seat surface can be tilted and returned freely, and the seat surface is linked to the tilting and returning operation of the backrest. On the other hand, it is characterized by having a seat reclining means which is slidably mounted so as to be locked at an appropriate position of forward and backward movement.

In the seat reclining means, the left and right sides of the backrest are supported by a pair of left and right safety guard holders via a rotary shaft for flipping up the safety guard, and the safety guard holders slide on the handle pipe. Is inserted into the handle pipe, and the rotary shafts are fitted into a pair of left and right guide slots formed on both sides of the handle pipe so that the safety guard holder can be slid along the handle pipe integrally with the backrest. The guide mechanism of the backrest, which is guided and engaged as described above, and the engagement mechanism which is pulled by the sliding operation along the handle pipe of the backrest so that the seat surface slides back and forth with respect to the chassis and is locked at an appropriate position. It is composed of a stop mechanism.

[0007]

In the stroller according to the present invention, with one hand,
By pulling out the front of the seat from the chassis and locking it at an appropriate position, the safety guard holder slides along the backrest along with the backrest, and the backrest tilts at a desired tilt angle with respect to the handleback pipe. Since it is held with the seat, the range of movement of the center of gravity of the baby's head relative to the stroller is minimized even after seat reclining, and the stability of the stroller as a whole is maintained by being stopped in front of the rear wheel.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 shown in the drawings is for carrying a baby on the road when going out for shopping, walking, traveling, etc. 1 is a stroller main body which is foldable and in which all the respective constituent members are made of synthetic resin such as plastic or made of light metal, and the stroller main body 1 has front pipes 2 and casters 3 at its tip as shown in FIG. A front arm 4 supporting the rear end of a front arm 4 and a rear arm 6 supporting a rear wheel via a rear pipe 5 and a caster 3 at the front end thereof. Left and right pair of arm frames 8
And a pair of left and right triangle-shaped handle parts 10 in which the lower ends of the arch-shaped handle pipes 9 are connected to the upper ends,
A seating surface 1 integrally molded into a ergonomic-based form of a composite material using a foam material and using an antibacterial and deodorant fiber
1 and a backrest 12. The chassis 1 is configured so that the seat surface 11 can slide forward and backward in conjunction with the tilting and returning operation of the backrest 12, and the seat surface 11 is locked at an appropriate forward and backward position.
The seat reclining means is configured by being slidably mounted on 3.

As shown in FIG. 2, the seat reclining means is supported by a pair of left and right safety guard holders, which will be described later, on the left and right side surfaces of the backrest 12 via a rotary shaft for flipping up a safety guard, which will be described later. A safety guard holder is slidably inserted into the handle pipe 9, and the rotary shaft is fitted into a pair of left and right guide elongated holes 9A opened on both sides of the handle pipe 9 so that the safety guard holder is supported on the back 12. And a guide mechanism of the backrest 12 which is integrally guided and engaged so as to be slidable along the handle pipe 9, and the chassis which is pulled by the sliding motion of the backrest 12 along the handle pipe 9. A locking mechanism that uses a guide rail such that the seat surface 11 slides back and forth with respect to 13 and is steplessly locked at an appropriate position ( Are constructed from Shimese not) and.

Then, the rear end portions of both sides of the chassis 13 are sandwiched between the upper ends of the respective handle parts 10 and are rotatably pivoted via a support shaft 14, and the lower ends of the handle parts 10 and the front arm 4 are rotatably supported. Of the lower surface of the chassis 13 connected to a shaft part 16 of the first link 15 and the front arm 4 which are connected to each other via a pair of left and right first links 15. The groove portion 13A provided in the front is configured to be engageably locked with the groove portion 13A, and the center portion of the handle part 10 and a portion separated from the arm support portion 7 on the rear arm 6 are provided as a pair of left and right second links. They are connected via 17 respectively. In this way, the shaft portion 16 connected to the first link 15 and the front arm 4 is fitted and locked in the groove portion 13A on the front side of the lower surface of the chassis 13 in the opened state of the arm frame body 8, or the front arm 4
In the closed state of the arm frame body 8 in which the groove portion 13A of the chassis 13 is pulled out from the shaft portion 16 and the chassis 13 is erected, the arm frame body 8 and the chassis 13 and the handle part 1 are
0 and 0 are closed to each other and are locked in a locking suspension form to constitute an opening / closing auto-locking means.

Further, both side portions of the chassis 13 separated from the support shaft 14 are clamped and engaged with the pair of left and right arm support portions 7, and the pair of left and right first safety guard supports 18 are attached to the respective arm support portions 7. Is rotatably pivoted at one end thereof, and one end of a pair of left and right second safety guard supports 19 is rotatably pivotally attached at the other end of the first safety guard support 18 to the second safety guard. The other end of the support 19 is pivotally attached to the side surface of the backrest 12 by penetrating the safety guard holder 20 by a rotating shaft 19A, and the safety guard holder 20 is inserted into the handle pipe 9.

Further, one end of the second safety guard support 19 is connected to the safety guard holder 2
As a flip-up type structure, a synthetic resin arch-shaped safety guard 21 pivotally supported at 0 is tilted from above to be mounted, and can be fixed via a safety guard lock 22. is there. In addition,
Above the backrest 12 is a sunshade 23 that can be rotated vertically and horizontally.
The back of the backrest 12 is provided with a reclining lever 24 for operating the seat reclining means.

Next, an example of the use of the stroller according to the present invention will be described. When using the stroller, the seat surface is tilted down with one hand to open the arm frame body 8 and the groove portion 16 in the lower front surface of the chassis 13 is inserted into the arm frame. First link 15 and front arm 4 of the body
By fitting and locking the shaft portion 16 connected to the above, the automatic locking means in the open state is achieved, and the safety guard 21 is mounted and fixed on the second safety guard support 19. At this time, as shown in FIG.
1 By pulling out the front side from the chassis 13 and locking it at an appropriate position, the safety guard holder 20 slides along the handle pipe 9 integrally with the backrest 12, and the backrest 12 is attached to the handle pipe 9. Since it is held at the desired tilt angle, the range of movement of the center of gravity of the baby's head with respect to the stroller is minimized even after seat reclining, and it is held in front of the rear wheel 3B to maintain overall stability of the stroller. To be done. Further, when not in use, as shown in FIG. 3, the groove portion 16 of the chassis 13 is removed from the shaft portion 16 of the front arm 4 to remove the chassis 1
3, the arm frame body 8 is closed while the arm frame body 8 and the chassis 13 are raised.
The front arm 4 is closed by closing it to the 0 side.
The shaft portion 16 is suspended and suspended on the side of the handle part 10 to achieve the automatic locking means in the open state.

[0014]

As described above, the present invention is configured as described above. The seat surface on the chassis of the stroller body has a backrest that can tilt and return freely, and the seat surface advances in conjunction with the tilting and returning operation of the backrest. Since it is slidably mounted so that it can be locked in the predetermined position of retreat, a gentle riding comfort can be obtained without impairing the sense of stability, and the shape and space of the seat surface and backrest so as not to disturb the sleeping face of the baby. Can be adjusted.

Further, since the seat surface slides back and forth with respect to the chassis and is locked at an appropriate position by being slid along the handle pipe of the backrest, it can be smoothly and easily operated by one hand with one touch. It is possible to obtain a seat reclining system in which the seat reclining adjustment can be performed in a stepwise manner and the center of gravity of the baby on which the baby is placed is small and stability is not impaired.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a stroller body showing an embodiment of the present invention.

FIG. 2 is a side view showing a partial cross section of the same.

FIG. 3 is a schematic side view for explaining the seat reclining operation.

FIG. 4 is a schematic side view illustrating a seat reclining operation of a conventional example.

[Explanation of symbols]

1 ... Stroller main body 2 ... Front pipe 3 ... Caster 4 ... Front arm 5 ... Rear pipe 6 ... Rear arm 7 ... Arm support 8 ... Arm frame 9 ... Handle pipe 10 ... Handle parts 11 ... Seat 12 ... Back 13 ... Chassis 13A ... Groove 14 ... Spindle 15 ... First link 16 ... Shaft 17 ... Second link 18 ... First safety guard support 19 ... Second safety guard support 20 ... Safety guard holder 21 ... Safety guard 22 ... Safety Tea guard lock 23 ... Awning 24 ... Reclining lever 9A ... Guide slotted hole

Claims (2)

[Claims] 1. A stroller comprising a pair of left and right arm frame bodies having front wheels and rear wheels, a pair of left and right handle parts having upper ends to which lower ends of handle pipes are connected, and a chassis having a seat surface mounted thereon. A seating surface provided with a backrest capable of tilting and returning freely, and slidably mounted so that the seating surface is locked with respect to the chassis at an appropriate forward and backward position in association with the tilting and returning operation of the backrest. A stroller having a seat reclining means. 2. The seat reclining means has left and right side surfaces of a backrest supported by a pair of left and right safety guard holders via a rotary shaft for flipping up the safety guard, and the safety guard holder slides on a handle pipe. Is inserted into the handle pipe, and the rotary shafts are fitted into a pair of left and right guide slots formed on both sides of the handle pipe so that the safety guard holder can be slid along the handle pipe integrally with the backrest. The guide mechanism of the backrest, which is guided and engaged as described above, and the engagement mechanism which is pulled by the sliding operation along the handle pipe of the backrest so that the seat surface slides back and forth with respect to the chassis and is locked at an appropriate position. The stroller according to claim 1, comprising a stop mechanism.