JPS6144920Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a stroller equipped with a backrest that can be tilted in multiple stages. It is characterized by having a structure that allows

Conventional strollers with a tilting backrest do not have a raised backrest to protect the head, so when the backrest is tilted to a near-horizontal position, the infant's head may protrude from the backrest, which is dangerous. At the same time, there was a risk that it might accidentally fall off the head.

The present invention eliminates such drawbacks, and the embodiment thereof will be described in detail with reference to the drawings.
and the rear pipe 2 are pivotally connected in a cross shape with the cross pin 3,
A handle pipe 4 is provided on the extension line of the front pipe 1, and a canopy receiving pipe 5 is arranged in parallel below the handle pipe 4, and the upper end of a connecting rod 6 arranged in parallel along the outside of the front pipe 1 and the handle pipe 4 is connected to a pin. The lower ends of the connecting rods 6 are bent and connected to the handle pipe 4 at 7 and to the lower ends of the canopy receiving pipes 5 using pins 8, respectively. Displacement plates 11, 11 are fixed to the lower end of each canopy receiving pipe 5, in which three locking grooves 9, 9', 9'' and a communication groove 10 connecting each locking groove 9, 9', 9'' are bored. and hang it vertically. A guide fitting 14 having an elongated guide groove 13 is fixed to the open lower end of the backrest pipe 12 made of a portal-shaped frame rod, and a gate-shaped operating rod 15 is arranged in parallel at the lower part along the backrest pipe 12. Then, the open end of the operating rod 15 is bent obliquely upward and further outward to the left and right. Operation rod 1
The bent ends 15', 15' of the operating rod 15 bent in the left and right outward direction are communicated with the guide groove 13 so that the upper part of the backrest pipe 12 is separated from the upper part of the backrest pipe 12 by the distance that a finger can be placed on the handle. It is loosely inserted into the communication groove 10 of the displacement plate 11, the wire shear 16 is inserted into the protruding end thereof, and the cap 17 is further covered. Both ends of the rod 18 are inserted into the displacement plate 11 and the guide fitting 14 and crimped, and the bent end 15' of the operating rod 15 and the rod 1 are
By elastically supporting the tension spring 19 over the length 8, the bent end 15' is sequentially displaced and crimped into the locking grooves 9, 9', 9''. Locking groove 2 for displacing the head protection rod 20 in two stages
1, 21' and the roller 2 in contact with the lower part of the operating rod 15.
2 and a through hole 23 is provided on the displacement plate 24, 2.
4 is inserted between the upper part of the backrest pipe 12 and the lower end of the head protection rod 20, and the three parts are integrally pivotally connected by pins 25, 25, and further spaced a little from the pins 25, 25 and attached to the backrest pipe 12. A tension spring 27 is elastically supported between the horizontally fixed rod body 26 and the pivotally connected portions of the rollers 22, 22 to urge the head protection rod 20 to rotate in a direction substantially aligned with the backrest pipe 12. An S-shaped fastening rod 28 is pivotally attached to approximately the center of the leg of the head protection rod 20, and cloth bands 29 are connected between the hood receiving pipe 5 and the fastening rod 28, respectively.

Since the present invention is constructed in this manner, the bent end 15' of the operating rod 15 is locked in the locking groove 9' of the displacement plate 11, as shown in FIG. From the position where the upper part of the operating rod 15 is locked and the head protection rod 20 is in the middle position, hang the upper part of the operating rod 15 on the upper part of the backrest pipe 12 and pull up the operating rod 15 to release the bent end 15'. The backrest pipe 12 and the head protection rod 20 are folded compactly along the canopy receiving pipe 5 in order to move and displace it into the locking groove 9. As shown in FIG.
At the same time, the loosened cloth band 29 becomes tense, and the head protection rod 20 resists the tensile force of the tension spring 27 and rises counterclockwise around the pin 25, lifting the infant's head. It is extremely safe as it protects the body and eliminates the risk of it slipping off the backrest. Furthermore, since the cloth band 29 is used, it feels soft and comfortable against the body.

As described above, the present invention has a robust structure, is easy to manufacture, is easy to operate, and is reliable in operation, making it an excellent and useful device.

[Brief explanation of drawings]

Fig. 1 is a front view of the stroller of the present invention with the backrest pulled down to the lowest position, Fig. 2 is a view taken from arrow A in Fig. 1, and Fig. 3 shows the bent end of the operating rod being locked. Figure 4 is an exploded perspective view showing the relative positions of the displacement plate that displaces the backrest pipe, the backrest pipe, and the operating rod. FIG. 5 is an exploded perspective view showing the relative positions, and FIG. 5 is a cutaway front view of the main parts showing the tilted state of the backrest and head protection rod. 1...Front pipe, 2...Rear pipe, 3...Cross pin, 4...Handle pipe, 5...Top holder pipe, 6...Connection rod, 11, 24...Displacement plate, 12
...Backrest pipe, 15'...Bent end, 15...
...Operating rod, 19, 27...Tension spring, 20...Head protection rod, 29...Cloth band.

Claims (1)

[Scope of utility model registration request] The front pipe 1 and the rear pipe 2 are pivotally connected in a cross shape with a cross pin 3, and a handle pipe 4 is provided on the extension line of the front pipe 1, and a canopy receiving pipe 5 is arranged in parallel below the handle pipe 4, and the handle pipe 4 and A displacement plate 1 in which a canopy receiving pipe 5 is connected by a connecting rod 6 and provided with multi-stage locking grooves 9, 9', 9''... communicating with a communicating groove 10.
1 and 11 are installed vertically at the lower end of the canopy receiving pipe 5, and an operating rod 15 of the portal frame rod is attached below the backrest pipe 12 of the portal frame rod with the upper portions of the rods slightly separated from each other. A guide fitting 14 having an elongated guide groove 13 is fixed to the open lower end of the pipe 12, and
Bend the open lower end of the operating rod 15 diagonally upward and laterally outward, and loosely insert the bent ends 15', 15' into the guide groove 13 and the communication groove 10 of the displacement plate 11 communicating with the guide groove 13, Both ends of the rod 18 are attached to each displacement plate 1
1 and the guide fitting 14, and extends over each bent end 15' of the operating rod and the rod body 18.
Multi-stage locking grooves 21, 21', which elastically support the operation rod 15 and engage with the upper part of the operation rod 15, are missing, and the operation rod 15
A displacement plate 24, 24 with rollers 22, 22 set up in contact with the upper part of the pin 25,
A rod body 26 and a displacement plate 24 are pivotally connected together at 25 and horizontally fixed near the upper part of the backrest pipe 12.
The tension springs 27, 27 are elastically supported over a period of 24,
Furthermore, the head protection rod 20 and the canopy receiving pipe 5 are connected by a cloth band 29, so that the head protection rod 20 stands up when the backrest is tilted to the lowest position. A stroller with a support.