JPS6078863A - Baby car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a foldable baby carriage.

Conventionally, when the stroller is folded, the left and right sides are made as small as possible, resembling a bat. Because of the position of the ring, there was a problem of staining not only the wearer's eyes but also the clothes of others.

Also, even if the weight could be reduced to 111g, the length could not be reduced, so there was a problem of having to occupy a large, narrow space to load it into the trunk AfF of one's mJ car.

Furthermore, since the 1111 wheels and the rear wheels are located in opposite directions when folded, there was also the sub-problem that the car could not stand on its own in the folded state.

Therefore, as a baby carriage that reduced the bulk when folded and was able to stand on its own with four wheels (+iiJ wheel and rear wheel) when folded, we developed the special public welfare stroller 1974-so7o35j.
-There is a public notice.

In this known baby carriage, the lower end of the push rod main body and the rear leg are bendably connected by the push rod support angle via a pivot pin, so that the push rod support angle is aligned along the upper half of the rear leg. The lower end of the push rod body is brought to a relatively upper position 11"J' of the hind leg by rotating it so that it extends over the lower half of the hind leg. , or in a relatively lower position.That is, when the lower end of the push rod body is brought to the upper position relative to the rear leg, the supporting leg push rod connecting rod and the lower end of the push rod body and the lower part of the rear 191 define a triangle to establish the open state of the stroller.

When the lower end of the push rod body is brought to a position relatively below the rear leg, the related members are arranged so that the support leg press connection rod, the push rod body, and the rear leg are substantially parallel to each other. The shape structure is chosen so that the folded state of the pram is established (
■It has been completed in 4 ways.

According to such a configuration, as the push rod body is folded, the extension line of the lower end of the push rod body is the line connecting the lower end pivot pin of the two lower push rod support angles, or the direction in which the above push rod support angle is raised up to the dead point that coincides with 111J, and then rotate the push rod support angle in the falling direction, so you have to press the rear wheel with your foot and pull up the push rod, or press the front end of the support leg push rod connecting rod to pull up the push rod. It is only possible to rotate the push rod support angle in the rising direction.

For this reason, there was a problem that it could not be folded smoothly.

This invention solves the above-mentioned problems by making the four cars #B of +1 iJ + rear wheel stand out and making them stand out as they are folded, and also by making them fold smoothly. ”.

This invention is based on the parallel phantom II=J river.
Place the upper ends of the pair of left and right front legs that hold iJ ym and the upper ends of the pair of left and right hind legs that have the rear wheels on their lower ends into the mouth UJ,
In addition, the distal end of the first connecting rod can be freely rotated and stored in the upper part of the rear leg, and the tip and end of the second connecting rod can be freely rotated between the upper part of the front leg and the tip of the first connecting rod. In addition, the armrest and the end of the first connecting rod are rotatably accommodated in the connecting rod, and the lower end 111S of the side rod is rotatably supported on both receiving rods, and the ends of the first connecting rod are rotatably supported, and the upper ends of both rods are connected to each other. The opposing ends of the grips protruding inward are connected so as to protrude forward and bend, and an engagement device is provided at this connection portion to prevent the grips from bending, and the grips are bent at the lower ends of the side rods. A locking device is provided to release the hind legs when
Now, move both ends of the X-shaped opening/closing rod, which has a pivot point at the intersection between the tip of the second connecting rod and the lower end of the hind leg, to freely rotate KIIy, and then place it in the center at the lower end of the l'1lil side rod. Fixing the outer end of the connecting rod, which has a bendable joint, releasing the engagement device, rotating the grip to bend it, and then pushing down the side rod causes an old feeling and reduces the width. 1ifl, pulling the front legs to the hind legs and meeting
To provide a baby carriage that can stand on its own with 1M+R and the latter part.

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

In the figure, 1.1 is a pair of parallel left and right moon rests, and in the middle of this armrest 1.1 are the upper ends of the left and right front legs 3.3, which have the front wheels 2 at the lower end, and the rear wheels at the lower end. A pair of left and right rear legs 5.5 having a rotation angle ω through a pin 6
J It can be stored freely.

Although the ends of the front leg 3 and the rear leg 5 are separately pivoted in the illustrated case, they may be pivoted at two locations.

Attach the end of the second connecting rod 8 through the pin 7 to the top of both rear legs 4.4, and the second connecting rod 10 through the pin 9 to the top of both front legs 3.
At the same time, a pin 11 is attached to the end of the second connecting rod 10 so that the end of the second connecting rod 10 can be freely rotated.
The tip 4a of the receiving rod 8 is rotatably connected.

Furthermore, the end of the elbow 1 and the first series 4- are attached to the connecting rod 12.
1- The terminal Kevin 13 of B can be rotated freely uNJ.''■If you ask, each of the left and right connecting rods 12 has a lower part of the side rod 14 parallel to the connecting rod 12, or a rotation li = +ff1.
The company is fully supported.

In the above-mentioned water distribution method, after fixing the cylindrical body 15 under the connecting rod 12, the side rod 14 is passed through the cylindrical rest 15, and the top and bottom of the cylindrical body 15 are sandwiched between them. Side beam 1
The collar fixed at 5 allows it to rotate in a fixed position.

At the upper ends of both rods 14 and 14, there are mutually inner vcp.
A grip 1616 is provided with opposite ends connected so as to protrude forward and bend when the handle is released.

In the illustrated case, the grip 16.16 is connected by providing a protruding piece 17.17 protruding from the back surface of the opposite end, and
Although the tabs (not shown) provided at the tips of the protruding pieces 17 and 17 are fitted together and connected by the through pin 18, a hinge may also be used.

Furthermore, at the opposite end of the grip 16.16 there is provided a retaining device 19 which prevents the grip 16 from bending.

The above locking device I8J: 19 is one piece 1 in the case shown.
One side of the plate-like body 20 is fixed on the upper surface of the remaining half piece 17, and a hollow chamber 21 and a through hole 22 through which this hollow chamber 21 and two surfaces communicate with each other are provided. spring 2
The slider 24 that is pushed up by the slider 24 is assembled, and the protruding shaft 2B that protrudes from the upper surface of the slider 24 is passed through the through hole 22. A certain through hole 26
Although the arrow shaft 25 is fitted in the arrow shaft 25, other configurations may be used.

The lower part 11ii of the bent rod 14 on both sides has a grip 16°1.
A locking part 27 is provided which engages with the rear leg 4 when the rear leg 6 is extended and retracted in a straight line.

In the illustrated case, the locking device 2' fixes the end of the plate-like body 28 at the lower end of the side rod 14, and also includes pins 29 protruding from the rear leg 4, and the tip of the plate-like body 28. In this embodiment, the through hole 30 is fitted into the hole 30 provided in the hole 30, but the fitting may be made by other means.

Both ends of an X-shaped opening/closing member 32, which drives a rotation 1IiIJ fork shaft 31 at the intersection between the light surface of the two swords/connecting rods 8 and the lower ends of both hind legs 5, are freely rotated through pins 33. It is housed in.

Both ends of a connecting rod 41 having a bent joint 40 in the center are fixed to the lower ends of the rods 14 and 14 on both sides.

The above-mentioned connecting rod 41/'i is bent only at one end, and extends in the same way when the grip 16 is extended into a straight line.

Furthermore, the footrest 34 installed between the lower parts of the front legs 3.3 is
In the illustrated case, the inner ends of the pair of plate-shaped bodies 3S and 35 are connected via a pin 36 so as to be bent into an inverted V-shape, and the front legs 3
The outer end of the plate-like body 35' can be freely retracted through the pin 37, and the outer end of the plate-like body 35 and the lower end of the piece 3B protruding downward from the tip of the first connecting rod 8. Since both ends of the rod 39 are rotatably connected, the footrest 34 can be folded while pulling up the rod 39 to accommodate folding costs.

42 in the figure is the reclining structure of the backrest seat (not shown) provided between the side bars 14, and this reclining aM
42 is configured to be folded and overlapped in conjunction with each other so as to reduce the width as the baby carriage is folded. 43 is installed on the rack between the first continuous rod 8.8 + * Iif knee 1/ -
/ IN −y= z゛lr+k '1 t7)
Old son-in-law 1? (The Tr old support material 43 has both ends stored in the 14th part 8 so that it can be rotated freely, and the bending connection νI due to the necessity of both rules) is made from the part 44, and the part 44 is connected to the armrest 1. It is designed to be folded and expanded by rotating the connecting stile 4'3.

The baby carriage according to the present invention has the above-mentioned groove bottom. Next, to explain the matter, when folding the baby carriage shown in FIG. By releasing the handle and bending the grip 16°16, the rods 14 and 14 on both sides rotate once and together rotate the plate 28 of the locking device 27, so that the connection between the pin z9 and the through hole 30 is The retainer is released and the connection between the connecting rod 12 and the rear leg 4 is released.

At this time, the connecting rod 41 is bent in the same direction as the grip 111).

Then turn forward and press the picture 9111 rod 14.14 11
1] Then, secretion/observance, lowering the entire end of the mouth,
Pull up the end of the second rod 10.10, and open it as the tip of the first rod 6.8 rises],? j rod 32 j mail I
Since it is rotated in the direction of
The width decreases as the -8s are pulled together.

At this time, the rod 39 is pulled out by the rotation of the second connecting rod 10, so that the plate-shaped body 3.5.35 of the footrest 34 is bent into an inverted V-shape.

If the armrest 1 is placed parallel to the side rod 14 while pulling up the armrest 1, the front legs 3 will be drawn toward the rear legs 5, and the front wheels 2 and rear wheels 40 will be able to stand on their own as shown in FIG. The wheels can be assembled and folded.

Additionally, the six links 421 of the reclining mechanism 42 are also folded as the width is shifted.

Next, when unfolding the folded baby carriage, if you move 11-1 times in the vertical direction, the first connecting rod 8 rotates in the same direction.
As a result, the tip of the second connecting rod 10 and the front leg 3 are pushed out, and the quotient is expanded by the 1-nohi closing rod 32 which rotates in the opening direction.

At this time, the plate-like bodies 35 and 35 of the foot rest 34 are rotated in the extension direction by pushing down the part 4-1'39.

When the grip 16.16 is pulled toward the hand, the lower ends of the side rod 14 and the connecting rod 12 rise, and the side rod 14 rotates, so that the pin 29 fits into the through hole 30 of the plate-shaped body 29. The lower end of the connecting rod 12 and the rear leg 5 are tied together, and the arrow is inserted into the through hole 26 of the plate-like body 20.
The grips 16 and 16 are held in place to maintain the extended state of the grips 16 and 16.

As described above, according to the baby carriage according to this invention, when the locking device is released and the grip is bent, the connecting rod and the rear leg joint are engaged while rotating the rods on both sides. When the locking device is released, push down the rods on both sides, and pull up the tip of the first and second rods. Then, the hind legs (1) can be folded in parallel with each other, keeping the bulk low and smooth.

Also, since the four tun IIIMs are gathered together when folded, they can stand on their own.

Furthermore, at the end of deployment, the hind legs are connected to the connecting rods by means of the retaining parts, resulting in a highly stable deployment state'= ((I).

can hold.

4 Explanation for drawings J The drawings show an embodiment of the baby carriage according to the present invention, and v
Figure J1 is a perspective view, Figure 2 is a rear view of the same, Figure 3 is a side view of the same, Figure 4 is a side view of the folded state, Figures 5 and 6 show the folding of the I''i fitting. 1 is a cross-sectional view of the locking device, FIG. 8 is a plan view of the retaining device, FIG. 9 is a plan view showing the bending of the grip, and FIG. FIG. 11 is a side view of the footrest, FIG. 12 is a front view of the same, and FIG. 13 is a front view showing the bending of the same.

1...H-JJ trigram, 2...front wheel, 3...1jft
Leg, 4... Rear wheel, 5... Rear leg, 6... Pin, 'n... Pin, b... First continuous rod, 9... Pin, lO・
...Second connecting rod, 11...Pin, 12...Connecting rod, 1
3...pin, 14...side rod, 1! : i... kj-shaped body, 16... grip, 1 so... projecting piece, lδ°° pin, 19... engagement device, 20... plate-shaped body, 21...
・Hollow shape, 22...Through hole, 23...Spring, 24...
・Slider, 25... Protruding shaft, 26... Through hole, 27.
...Locking device, 28...Plate-shaped body, 29...Pin, 3
0...Through hole, 31...Spindle, 32...Opening/closing rod, 33
...Pin, 40...Joint capital, 41...Connection rod No. 2
figure

Claims (1)

[Claims] A pair of parallel left and right armrests, +lf7 legs with a front wheel at the lower end with the upper end rotatably housed in the middle of both armrests, and hind legs that allow the rear wheel to fit at the lower end, and at the top of both hind legs. A first continuous rod whose distal end is rotatably attached; and a second continuous rod whose distal end is rotatably connected to the tip of the first continuous rod, and whose tip is rotatably attached to the upper part of the front leg. , a connecting rod that rotatably accommodates the ends of the armrest and the first receiving rod above and below, a side rod whose lower end is rotatably supported by the connecting rod, and the upper ends of these rods on both sides. a grip that protrudes inward from the base and is connected to the opposite end so as to be bent; an engagement device provided at the connected inner end of the grip to maintain the grip in a straight state; and a lower end of the side rod and the rear leg. a locking device which connects the side rod and the lower leg when the engaging device is in the engaged state and releases the connection as the grip is bent; An X-shaped open rod with both ends rotatably connected to the tip of the double box rod and the lower part of both hind legs, and a link with both ends fixed to the lower ends of the side rods and a joint that bends in the middle. A baby carriage that grows from the rod.