JPS5830766Y2 - baby carriage - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a baby carriage, and more particularly to a folding mechanism that can be used in a part of a folding baby carriage to realize a smooth folding operation.

Considering the shape of the entire baby carriage, the push member for manual operation by the person transporting the baby carriage will naturally be located at the L part from its function, so the upper end of this push member will be the part of the entire baby carriage. The height dimension will be determined as follows.

Therefore, in a folding baby carriage, in order to reduce the bulk in the closed state, it is desirable to reduce the height as well, so that the push member is brought to a relatively lower position in the closed state. A folding baby carriage configured as follows has already been proposed.

In one example, the pushing member is connected to the longitudinally intermediate portion of the rear leg via a support angle.

One end of this support angle is movably connected to the rear leg, and the other end is rotatably connected to the lower end of the push member.

Since the rear legs are arranged to extend substantially in the seven-way direction, the open state of the stroller is realized with the support angle along the upper half of the rear legs, and the support angle is along the upper half of the rear legs. The closed position is achieved by rotating the handle against the hind legs and following the lower half of the hind legs.

In this closed state, the support angle is along the lower half of the rear leg, so the push member body is brought to a relatively lower position by that much, which increases the overall height of the stroller. The directional dimension will be reduced.

With the above-mentioned type of baby carriage, in addition to the above-mentioned configuration,
Some devices have a configuration in which the width dimension is also reduced in the closed state.

In this case, many baby carriages are provided with a member that connects the respective members arranged symmetrically, and this connecting member is often configured to be bendable.

For example, there are front legs that are rotatably connected to the rear legs, and the member that connects the front legs is bendable.

In view of the above-mentioned requirements for the folding mechanism of the stroller, it is desirable that the rotational movement of the support angle and the bending movement of the connecting member connecting the left and right front legs be linked.

Therefore, the main purpose of this invention is to provide a baby carriage with a folding mechanism that can meet the above-mentioned needs.

Other objects and features of this invention will become clearer from the detailed description given below with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of this invention in an open state.

FIG. 2 is a perspective view illustrating the essential structure of this invention, showing the operational connection between the front leg connecting rod and the support angle extracted from the general view of the baby carriage shown in FIG. 1.

FIG. 3 is a side view of the baby carriage shown in FIG. 1.

FIG. 4 is a side view of the baby carriage of FIG. 1 in a closed state.

The overall structure of the baby carriage shown here will be described with reference mainly to the drawings showing the baby carriage in the open state.

A pushing member 101, which is manually operated by a person transporting and operating the baby carriage, has an inverted U-shape as a whole, and its upper part constitutes a grip part 102.

The grip portion 102 is bendable in the direction of the arrow 103 in FIG.

The main body 104 of the push member 101 is arranged substantially facing in the vertical direction.

A slider 105 is arranged on the push member main body 104, and the push member main body 104 slidably guides the slider 105.

The front leg 10 is attached to the slider 105 via a pivot pin 106.
The upper end of 7 is pivoted.

Left and right front legs 10γ. A front leg connecting rod 151 is provided extending between the front legs 107 and 107 for reinforcement.

The front leg connecting rod 151 is located relatively below the front Vjn 107, and its middle portion can be bent forward as indicated by an arrow 152 in FIG.

The front pushing connecting rod 151 is rotatably connected to the front qior at both ends thereof, and the connecting tool 152a for this purpose is
Preferably, it is in the form of a universal joint.

A footrest (not shown) may be attached to the front leg connecting rod 151 so that the feet of an infant placed in the stroller can be placed thereon.

A rotatable front wheel 111 is attached to the lower end of the front leg 107.

A rear leg 112 is rotatably connected to a longitudinally intermediate portion of the front leg 10γ.

In this embodiment, the rear leg 112 is pivoted via a pivot pin 115 to a connector 114 attached to the side surface of the front leg 10γ by a pivot pin 113.

The rear wheel 116 is rotatably attached to the lower end of the rear leg 1120.

The rear legs 112 substantially extend in the vertical direction.

One end of a support angle 117 is rotatably connected via a pivot pin 118 at a longitudinally intermediate portion of the rear leg 112 .

The lower end of the push member body 104 is rotatably connected to the other end of the support angle 117 via a pivot pin 119 .

The pivot pin 113 that attaches the aforementioned connector 114 to the front leg 107 also rotatably connects the folding interlocking connecting rod 120.

The rear end of this folding interlocking connecting rod 120 is connected to a pivot pin 121.
The push member body 104 is rotatably supported at a position spaced apart from the lower end of the push member body 104 by a predetermined distance.

The folding interlocking connecting rod includes a portion extending further forward from a connecting portion (pivot pin 113) with the front leg 107.

On the back side of this stroller, there are 12 cross bars that intersect in an X shape.
5 is placed.

This intersecting rod 125 is a member that defines the widthwise dimension of this baby carriage, together with the aforementioned front leg connecting rod 151.

The cross rod 125 has an upper end connected to the connector 12 in the form of a universal joint.
6 to the slider 105.

The lower ends of the cross rods 125 are connected to relatively lower portions of the rear legs 112, which are located opposite left and right to each slider 105, by a connector 127 in the form of a universal joint.

The pair of intersecting rods 125, 125 now intersect in an X-shape, and are rotatably connected to each other by the pivot pin 128.

Thus, the overall structure of the baby carriage has been explained.

Next, with reference mainly to FIG. 2, the characteristic parts of this invention will be further explained.

The support angle 11γ and the front leg connecting rod 150 are the rod 1
53.

One end of the rod 153 is rotatably connected to approximately the middle portion of the support angle 11γ.

The other end of the rod 153 is rotatably connected to the front leg connecting rod 151 at positions separated by a predetermined distance from each side of the intermediate portion of the front leg connecting rod 151 .

Preferably, a connector 154 in the form of a universal joint is applied to the connecting portion between the rod 153 and the front leg connecting rod 151.

In the configuration described above, the support angle 117 is indicated by the arrow 129
When the rod 153 rotates about the pivot pin 118 in the
1 forward and bends it in the direction of arrow 152.

In the baby carriage described above, in this embodiment, the grip portion 10
2 in the direction of arrow 103, the folding operation proceeds.

Therefore, if bending of the grip portion 102 is prohibited, the open state shown in FIGS. 1 and 2 will be maintained.

The means for performing such operations will be explained below.

FIG. 5 is a partially exploded perspective view showing the structure around the operating lever 136 provided in connection with the push member shown in FIGS. 1, 3, and 4. FIG.

6 is a partially cutaway perspective view of the operating lever 136 of FIG. 5. FIG.

FIG. 7 is a sectional view taken along the line ■--■ in FIG. 5.

A guide socket 131 is provided at the negative end of the push member body 104.
is formed.

For example, the push member main body 4 having a rectangular cross section is inserted into the guide socket 131 and fixed therein.

The grip part 102 is made of a round pipe or a round bar, and is rotatable around its axis within the guide socket 131.

A guide elongated hole 132 is formed in the side surface of the guide socket 131 over a substantially perpendicular angular range, and a guide pin 133 fixed to the grip portion 102 is received here.

A bracket 134 is formed in the guide socket 131, and a through hole 135 is formed in the bracket 134.

The operating lever 136 includes a through hole 137.

When the through hole 137 and the through hole 135 are aligned, the shaft 1
39 (FIGS. 1, 3, and 4) is inserted, and the operating lever 136 is rotatably supported with respect to the guide socket 131.

The operating lever 136 has a recess 138 on its downwardly facing surface.
is formed.

Therefore, when the operating lever 136 is rotated downward, the guide pin 133 is received in the fourth part 138, and the grip part 102 is moved against the push member main body 104, as shown in FIGS. Rotation is prohibited.

On the other hand, when the operating lever 136 is rotated upward, the guide pin 133 escapes from the recess 138 and the guide pin 133
is in a state where it can move within the guide elongated hole 132, and the grip portion 102 is in a state where it can be rotated with respect to the push member main body 104.

Next, what is the folding operation of this baby carriage? This section explains the reading and operation.

In the open position of the stroller, the support angle 117 is
The push member body 104 is rotated upward relative to the pivot pin 118 of the rear leg 112 and is along the upper half of the rear leg 112, bringing the push member main body 104 to a relatively upper position. There is.

In this state, a triangle is formed between the do portion of the push member main body 104, the upper part of the rear leg 112, and the rear part of the folding interlocking connecting rod 120, and an open state is established.

To change from the open state to the closed state as described above, the operating lever 136 is rotated upward so that the grip portion 102 can be bent in the direction of the arrow 103.

Next, hold the grip part 102 with one hand and tilt the entire baby carriage backward so that the rear wheels 116 are on the ground 11 and the front wheels 111 are lifted off the ground.

Accordingly, the weight of the baby carriage acts advantageously to cause the grip portion 102 to bend in the direction of the arrow 103, and
The support angle 11γ is rotated in the direction of arrow 129.

The rotation of the support angle 117 in the direction of the arrow 129 is initially activated because the support angle 117 is connected to the front leg connecting rod 151 which cannot be bent rearward by a rod 153, so the rear leg 112 is rotated to the front leg. This appears as an action to bring the object closer to 107.

When this rotation of the support angle 117 occurs, the rear wheel 11
Push down the t1 pushing member 101 with 6 on the ground.

In response to this, the slider 105 and the push member main body 104 slide, and the push member 101 is brought to a lower position.

Accordingly, the front end of the folding interlocking connecting rod 120 is tilted toward one side, and the rear leg 112 is further brought closer to the front leg 107.

When the bump is close, the support angle 117 is in the direction of the arrow 12.
9, the rod 153 connects to the front leg connecting rod 15.
1 to cause the front leg connecting rod 151 to bend in the direction of arrow 152.

Also, at almost the same time, the aforementioned slider 105 and the pushing member main body 104 are sliding, so the pair of cross rods 125, 125 are rotated so that they are vertically lined up. The push member bodies 104, 104 and the pair of rear 1Ns 112, 112 move toward each other, respectively.

Finally, as shown in FIG. 4, the front legs 107
are lined up substantially parallel to the push member 101, the rear legs 112 are also lined up substantially parallel to the push member 101, and the left and right members approach each other.

In the state shown in FIG. 4, the two front wheels 111 and the 2° rear wheels 116 are brought to approximately the same height, so this baby carriage can stand on its own in the closed state.

To change the baby from the closed state to the open state, the entire baby carriage may be suspended in the air by holding the grip portion of the push member 101.

In response to this, the weight of the baby carriage acts and the support angle 11
1 rotates downward around the pivot pin 119 at the lower end of the push member main body 104, and at the same time, as the slider 105 slides downward on the push member main body 104, the folding interlocking connecting rod 120 becomes almost horizontal. Rotate so that it is in the correct condition.

In response, the rear leg 112 rotates away from the front leg 107, and the front leg connecting rod 151 is pulled together via the rad 153.

As a result, the front leg connecting rod 151 operates to extend linearly.

Further, the pair of intersecting rods 125, 125 rotate so as to spread in the width direction while the slider 105 and the push member main body 104 slide.

As a result, the pair of push member bodies 104, 104, the pair of rear legs 112, 112, and the pair of front legs 107
107 are displaced away from each other.

At the end of such operation, the open condition shown in FIGS. 1-3 is established.

Here, if the operating lever 136 is rotated downward, this open state is maintained.

As described above, according to this invention, by simply connecting the support angle and the front leg connecting rod with a rod, the movement of the support angle during the folding operation of the baby carriage is advantageously utilized to bend and extend the front leg connecting rod. be able to.

Although the support angle 117 is the gist of this invention, it goes without saying that its shape is not limited to that shown in the drawings.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of this invention in an open state. Figure 2 shows the main structure of this invention, and from the general view of the baby carriage in Figure 1, the front leg connecting rod 151 and the support angle ↑1γ
FIG. FIG. 3 is a side view of the baby carriage shown in FIG. 1. FIG. 4 is a side view of the baby carriage of FIG. 1 in a closed state. FIG. 5 is a partially exploded perspective view showing a small configuration near the operating lever 736 provided in connection with the push member shown in FIGS. 1, 3, and 4. FIG. 6 is a partially cutaway perspective view of the operating lever 136 of FIG. 5. FIG. FIG. 7 is a sectional view taken along the line ■--■ in FIG. 5. In the figure, 102 is a grip part, 104 is a push member body, 1
05 is a slider, 10γ is a front leg, 112 is a rear leg, 114
1 is a connector, 11γ is a support angle, 118, 119 is a pivot pin, 120 is a folding interlocking connecting rod, 125 is a cross rod, 1
Reference numeral 36 designates an operating lever 151 as a front leg connecting rod, and reference numeral 153 represents a rod.

Claims (3)

[Scope of utility model registration request] (1) A pair of front legs that extend substantially in the upper direction, and a pair of rear legs that extend substantially in the upper direction and are rotatably connected to a longitudinally intermediate portion of each of the front legs. a pair of support angles, one end of which is rotatably connected to a longitudinally intermediate portion of each of the rear legs, and a lower end of which is rotatably connected to the other end of each of the support angles; a pair of push member bodies; a front leg connecting rod whose both ends are rotatably connected to each of the front legs on the F side from the connecting portion with the rear legs, and whose intermediate portion can be bent forward; a pair of sliders that are slidably disposed on the push member main body and pivotally support the upper ends of each of the front legs; and a pair of sliders that are also intersected and connected in an X-shape between each of the sliders and each of the rear legs. A bendable LiT-capable grip portion that connects a pair of intersecting rods and the pair of push member bodies, and a bendable state and an unbendable state of the grip portion are selected as desired. and a pair of folding interlocking connecting rods connecting each of the pushing member bodies and each of the front legs, the support angle being along the upper half of the rear leg and the rear leg being The front legs are separated from each other in an open state, and the support angle moves with respect to the rear legs so that the -F of the rear legs is opened.
In a folding baby stroller in which the pushing member main body is brought to a relatively F-side position along the half part and the rear legs are in a closed state close to the front legs, the support angle and the front leg are connected. The stroller is characterized in that the front leg connecting rod is connected to the rod by a rond, and the front leg connecting rod is bent and extended in conjunction with bidirectional movement of the support angle. (2) The location of the connection part of the iJ rondo with the nose gear connecting rod is selected at a position separated by a predetermined distance on each side of the middle part of the nose gear connecting rod.Claim 1 of Claim 1 The baby carriage mentioned. (3) The baby carriage according to claim 1 or 2, wherein a connection in the form of a universal joint is applied to the connecting portion of the connecting rod with the front leg.