JPS6238851Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention can be easily folded with a simple operation.
The present invention also relates to a baby carriage that can be expanded.

For these types of baby carriages, either the left and right widths are made as small as possible when folded so that they form a bundle like a bat, or the width is kept the same and the length is made as short as possible. There is.

The former baby carriage has a pair of left and right side frames, which are made up of a front leg lever, a hand lever connected to the upper end of the front leg lever so that it is approximately in a straight line when extended, and a rear leg lever whose upper part is pivoted to the lower part of the hand lever. When the hand lever is pushed down so as to overlap the front leg lever, the rear leg lever is rotated to the extension line of the front leg lever, and at the same time, the X connecting the left and right side frames is rotated. While the rods are closed, the side frames are pulled together to reduce the width.

Such baby carriages have the disadvantage that when the baby carries the folded baby carriage by hooking the grip to the arm, the rear wheel located near the grip may stain the clothes of the person carrying the baby or others.

Furthermore, even if the width can be reduced, the length cannot be reduced, so it has the disadvantage that it requires a large, narrow space to be loaded into the trunk of a car or the like.

Next, the latter baby carriage pulls up the front leg lever via the body lever that rotates as the push lever is pushed down, and also pulls the front leg lever parallel to the rear leg lever to reduce the length and directly above the rear wheel. The front wheels are designed to be pulled closer to each other.

In the case of such a baby carriage, the rear wheels and front wheels are assembled in the lower part, so that the above-mentioned drawback of staining the clothes of not only the person carrying the stroller but also other people can be solved.

However, since the width cannot be reduced, it is bulky to carry and requires a large space to be loaded into the trunk of a car.

The purpose of this invention is to eliminate the above-mentioned drawbacks by concentrating the front and rear wheels in one place when folding, shortening the length and reducing the width.

This idea shortens the length by assembling the front leg lever and rear leg lever in parallel on the hand lever as the hand lever is pushed down, and also shortens the length by assembling the front leg lever and rear leg lever in parallel as the hand lever is pushed down. To provide a baby carriage whose width is reduced while drawing structured side frames to each other.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

In the figure, S ₁ and S ₂ are a pair of left and right side frames, and these side frames S ₁ and S ₂ include a hand lever 2 having a grip 1 at the upper end, and a pin 3 attached to the lower part of the hand lever 2 to connect the upper end to the hand lever 2. The attached rotating plate 4 and
Side rod 5 whose upper end is rotatably attached to the above pin 3
The upper end of the side rod 5 intersects with the upper end facing forward, and the rear leg rod 7 is rotatably attached to the lower end of the rotating plate 4 via a pin 6;
A connecting rod 10 whose tip is attached to the upper end via a pin 8 and whose end is attached via a pin 9 to a higher position than the pin 3 of the push rod 2; , a front leg rod 12 whose lower end is rotatably attached to the lower end of the side rod 5 via a pin 11, and a rotary plate 4 that contacts the rear leg rod 7 to prevent the rotating plate 4 from falling forward. It is composed of a pin 13 provided on the moving plate 4 and a stopper 14 that removably engages the lower end of the push rod 2 with the rear leg rod 7.

In the illustrated case, the above-mentioned stopper 14 is a hook 16 rotatably attached to the rear leg lever 7 via a pin 15.
and a protruding shaft 17 provided at the lower end of the push rod 2 so as to engage with the hook 16.

Also, two rods 18, 18, and both rods 1
An X-shaped connecting member 20 is constituted by a pin 19 that pivotally supports the central portion where the two intersecting points 8 and 18 intersect. The tip and end of the hand lever 2
A connecting member 20 is connected via a pin 21 to the upper and lower parts of the
The tip and end of each are rotatably attached.

In addition, in the case of illustration, the upper ends of the rods 18, 18 of the long connecting member 20 and the rod 1 of the short connecting member 20
8 and 18 through a pin 22, the lower end of the rod 18 of the short connecting member 20 is pivotally supported on the upper part of the hand lever 2 via a pin 21, and a pin is connected to the lower part of the hand lever 2. Although the lower end of the rod 18 of the elongated connecting member 20 is pivotally supported via the connecting member 21, a single connecting member may be used.

Furthermore, a front wheel 23 is attached to the lower end of the front leg lever 12.
Rear wheels 24 are provided at the lower ends of the rear leg levers 7, respectively.

Further, the side frames S ₁ and S ₂ are provided with a distance maintaining device A that maintains the distance between the expanded side frames S ₁ and S ₂ .

In the case shown in the figure, the above spacing maintenance device A includes a side link 26 whose outer end is attached to the lower part of the two-handed push rod 2 via a pin 25, and an outer end which is attached to the inner end of this both side link 26 via a pin 27. The center link 28 extends from both outer ends of the center link 28 and is located below the line connecting the pins 25.
The projecting piece 29 circumscribes the upper edge of the inner end of the side link 26 so that the side link 26, the center link 28, and the side link 26 are positioned in series when the center link 28 is depressed.
are lined up and can be folded by kicking up the center link 28.

Furthermore, the side edges of the seat sheet 30 and the backrest sheet 31 are supported by the side frames S ₁ and S ₂ .

The above-mentioned seat 30 is connected to the connecting rod 1 in the case shown in the figure.
0 is supported by covering the cylindrical part of the side edge.

In addition, in the illustrated case, the lower end of the tilting rod 33 is supported by the hand lever 2 via the pin 32 so as to be positioned above the pin 3, and the side panel 34 is attached to the tilting rod 33. The backrest sheet 31 is stretched on the backrest sheet 31, the lower end of the rod 35 is pivotally supported by the pin 9, and the upper end of the rod 35 is attached to the slider 36 fitted to the tilting rod 33 via the pin 37, and the locking device is installed. By releasing the slider 36, the angle of the back seat 31 can be changed as shown in FIGS. 5 and 6 while sliding the slider 36 to a predetermined position.

As shown in FIG. 6, the above-mentioned locking device has through-holes 45 provided at a predetermined interval in the tilting rod 33, and a rocking mechanism pivoted by a pin 37 toward a piece 46 protruding from the slider 36. While rotating the piece 48, the claw 5 connected from the swinging piece 48 through the through hole 45
It is designed to allow 0 to escape.

In addition, as shown in the figure, a cylindrical guide member 37' is provided on the front leg rod 12, and the rod 3 is attached to this guide member 37'.
8 in a slidable manner, pull out the rod 38, and lock the female hook 41 provided on the tip edge of the footrest seat 40 to the male hook 39 at the tip of this rod 38 (as shown in FIG. 9). By doing so, the footrest seat 40 can be held in a horizontal state.

In the figure, 42 is a belt 43 that connects the ends of the rods 38.
A spring provides rotation to the stopper 14, and 44 is a footrest that can be folded and unfolded. 49
is a spring that gives the swinging piece 48 the ability to rotate so that the claw 50 fits into the through hole 45.

The folding baby carriage according to this invention has the above-mentioned structure. Next, the folding action will be explained. After releasing the engagement between the protruding shaft 17 and the hook 16, by pushing down the hand levers 2, 2, pin 3 on the back
The rear leg lever 7 is moved back through the side lever 5 while moving the
While pulling the front leg lever 12 toward the
Defeat.

At this time, as the rotating plate 4 rotates, the connecting member 20 located on the lower side of the seat 30
As the distance between the tip and end of the pin 21 gradually increases, the rods 18, 18 move in the direction of closing each other.
rotates.

Therefore, both side frames S ₁ and S ₂ are pulled together.

In addition, the connecting member 20 on the rear side of the back seat 31
Similarly to the above, both rods 18, 18 are rotated in the closing direction.

When the rotation of the rotating plate 4 is completed so that the pin 3 is positioned on the lower end side of the rear leg lever 7, the rear leg lever 7
The front leg levers 12 are placed parallel to each other, and the front wheel 23 is pulled directly above the rear wheel 24, and the front leg levers 12 and the rear leg levers 7 are placed parallel to the hand lever 2, and the length is shortened as shown in Fig. 3. , the width is reduced as shown in FIG.

Moreover, when the hand levers 2, 2 are pulled up, the rods 18, 18 of the connecting member 20 are opened in an X-shape, and the side frames S ₁ , S ₂ are pushed apart, and the rotating plate 4 is moved in the rising direction. While rotating, the front leg lever 12 is pushed out, and the pin 13 is brought into contact with the rear leg lever 7 to stop the rotating plate 4, and the baby carriage is unfolded as shown in FIGS. 1 and 2.

At this time, the distance maintaining device A is extended linearly.

As described above, according to the baby carriage of this invention, by pushing down the hand lever, the rotating plate is tilted backward, the front leg lever is drawn to the rear leg lever, and the front wheel is positioned directly above the rear wheel. At the same time, since the rod of the connecting member is rotated in the closing direction to draw both side frames together, the width and length can be shortened and folded.

Therefore, it is possible to eliminate the drawback that the rear wheels located near the grips of the stroller stain the clothes of the person carrying the stroller or others when carrying the stroller, and it is also easier to load the stroller into the trunk of a car or the like.

[Brief explanation of the drawing]

Figure 1 is a side view of the baby carriage according to this invention, Figure 2
The figure is a rear view of the same as above, Fig. 3 is a side view showing the baby carriage folded, Fig. 4 is a front view of the same as above, Fig. 5 is a side view with the back seat folded down, and Fig. 6 shows the locking device of the slider. 7 is a cross-sectional plan view of the same, FIG. 8 is an enlarged plan view showing the footrest, FIG. 9 is a side view of the same, and FIGS. 10 and 11 are views of the rotating plate. It is an enlarged side view showing movement. S ₁ , S ₂ ... Side frame, A ... Spacing maintenance device, 1 ... Grip, 2 ... Hand lever, 3 ... Pin, 4 ... Rotating plate, 5 ... Side rod, 6 ... Pin ,7
... Rear leg rod, 8, 9 ... Pin, 10 ... Connecting rod,
11...pin, 12...front leg rod, 13...pin,
14... Stopper, 15... Pin, 16... Hook, 17... Protruding shaft, 18... Rod, 19... Pin, 20... Connecting member, 21, 22... Pin, 2
3...Front wheel, 24...Rear wheel, 25...Pin, 26
... side link, 27 ... pin, 28 ... center link, 29 ... protrusion, 30 ... seat seat, 31 ... back seat.

Claims (1)

[Scope of utility model registration request] a hand lever having a grip at its upper end; a rotating plate having an upper end attached to the lower part of the hand lever via a pin; and a side lever having an upper end rotatably attached to the pin for attaching the rotating plate; The upper end of this side rod faces forward and the upper end of the side rod intersects, and the middle part is rotatably attached to the lower end of the rotating plate via a pin, and a pin is attached to the upper end of the rear leg rod. A connecting rod with the tip end attached and the end attached to the hand lever via a pin at a higher position than the pin for attaching the hand lever and the rotating plate, and the upper end rotatably attached to the tip of this connecting rod. At the same time, there is a front leg lever whose lower end is rotatably attached to the lower end of the side lever via a pin, and a rotating plate that contacts the rear leg lever to prevent the rotating plate from falling forward. A pair of left and right side frames are constructed by the provided pin and a stopper provided to removably engage the push rod with the rear leg lever. Two X-shaped connecting members are formed with a pin that pivotally supports the central part, and the end of the rod of one of the connecting members is pivotally supported through the pin between the upper part of the front leg rod and the upper part of the rotating plate. , furthermore, the ends of the rods of the other connecting member are pivotally supported through pins at the upper and lower parts of the hand levers, and wheels are attached to the lower ends of the front leg levers and the lower ends of the rear leg levers; A folding baby carriage with a seat and a back seat attached to the top.