TW201433486A - Folding stroller - Google Patents

Abstract

This invention provides a folding stroller capable of effectively preventing fingers or clothing, etc. from being sandwiched. The folding stroller comprises an armrest (10) and a connecting rod (20) pivotally connected to the armrest via a connecting shaft (30). The armrest (10) has a rear portion end face (11a) opposite to the front of the connecting rod (20). In the connecting rod (20), an area 21 opposite to the rear portion end face (11a) of the armrest (10) in folding operation or developing operation is formed in a bulging shape towards the rear portion end face side.

Description

Folding stroller

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a foldable stroller, and more particularly to a stroller that is intended to prevent a finger or a garment from being caught in a gap between the stroller constituting members during a folding action or a deploying action.

Japanese Laid-Open Patent Publication No. 2007-98995 (Patent Document 1) discloses a stroller capable of preventing clothes or the like from being caught in an armrest as a structural member of a stroller and other structural members rotatably coupled to the armrest. In the gap created between.

The stroller disclosed in the above publication has an armrest, a connecting rod that is rotatably coupled to the armrest and rotatably coupled to the rear leg via a bracket, and the armrest rotates around the connecting shaft with the folding operation or the unfolding operation, the armrest and the connecting rod The angle of intersection changes.

As shown in FIG. 4 of Patent Document 1, as a basic frame structure, the stroller includes: a pair of armrests; a pair of forefoot having an upper end rotatably coupled to the armrest, a lower end having a front wheel; and a pair of rear legs; The upper end is rotatably connected to the armrest, and the lower end thereof has a rear wheel; a pair of connecting rods, the upper end of which is rotatably connected to the rear end portion of the armrest, the lower end of which is rotatably connected to the rear leg via the bracket; and the connecting member in the width direction Connect the frame members on the left and right sides. Revealed in Patent Document 1 In the stroller, the upper end portion of the connecting rod is terminated by a position near the connection point with the rear end portion of the armrest. The stroller has a hand pusher that can switch the back push state and the opposite push state, and the hand push bar in the back push state overlaps the position outside the link bar. In the stroller in which the position of the hand pusher is fixed, the connecting rod extends further upward from the rear end portion of the armrest to constitute a hand push rod.

In the folding operation or the unfolding operation disclosed in Patent Document 1, in order to prevent a finger or a clothing or the like from being caught in a gap formed between the armrest and the connecting rod rotatably coupled to the armrest, the additional armrest is provided. An anti-pinch member that connects the gaps between the rods. The anti-pinch member is supported on the upper end of the connecting rod or on the armrest.

(Prior art literature) (Patent Literature)

Patent Document 1: Japanese Laid-Open Patent Publication No. 2007-98995

In the stroller disclosed in Patent Document 1, an anti-pinch member is prepared as an additional member for filling a gap between the armrest and the connecting rod, and is supported by the upper end portion of the connecting rod or the armrest. In view of the manufacturing cost and the combined work, the step of preparing the anti-pinch member as an additional member and attaching it to the connecting rod or the armrest becomes a disadvantage.

In order to solve the above problems, the present invention provides a folding stroller capable of avoiding the risk of finger gripping without increasing the number of components or the combination work.

The folding stroller of the present invention includes: an armrest; rotatably coupled to the forefoot and the rear leg of the armrest; rotatably coupled to the armrest via a connecting shaft, and rotatably coupled to the connecting rod of the rear leg via a bracket. As the stroller is folded or unfolded, the armrest rotates about the connecting shaft, and the angle of intersection between the armrest and the connecting rod changes. In the stroller of the present invention, the armrest has a rear end surface that faces the front surface of the connecting rod, and the rear end surface of the connecting rod in the folding operation or the unfolding operation and the armrest. The opposing regions form a shape that bulges toward the rear end face side.

Preferably, the bulging shape is selected such that the maximum gap between the rear end surface of the armrest and the bulging shape region of the connecting rod is 5 mm or less during the folding operation or the unfolding operation.

In one embodiment, the bulging shape of the connecting rod includes a bulging straight portion and a bulging inclined portion, wherein the bulging straight portion is located further below the bulging shape region, along the protruding position on the armrest side The axial direction extends linearly, and the aforementioned slanted inclined portion then extends to the lower region of the aforementioned connecting rod.

In a preferred embodiment, the armrest includes an armrest body and a pair of extending portions, wherein the armrest body includes the rear end surface, and the extending portion extends rearward from a rear end of the armrest main body to the connecting rod The pair of extending portions are rotatably connected to the connecting rod via the connecting shaft.

A folding stroller according to another embodiment of the present invention includes: an armrest; Rotatablely coupled to the forefoot and the rear leg of the armrest; rotatably coupled to the armrest via the connecting shaft, and rotatably coupled to the connecting rod of the rear leg via the bracket; in accordance with the folding action or deployment of the aforementioned stroller In the folding stroller in which the armrest is rotated about the connecting shaft and the crossing angle of the armrest and the connecting rod is changed, the armrest has a rear end surface facing the front surface of the connecting rod; and in the connecting rod, When the stroller is in the unfolded state, a recess is formed in a region facing the rear end surface of the armrest, and when the stroller is in the unfolded state, the rear end surface of the armrest is caught in the recess of the connecting rod.

According to the invention of the above configuration, the shape of the connecting rod itself is improved, and therefore, the number of members or the amount of work is not increased. The bulging shape area of the connecting rod reduces the size of the gap formed between the armrest and the connecting rod when the stroller is folded or when deployed.

10‧‧‧Handrail

11‧‧‧Upper wall

11a‧‧‧ rear end face

12‧‧‧ side wall

13‧‧‧Extension

20‧‧‧ Connecting rod

21‧‧‧ bulging area

21a‧‧‧ bulging straight line

21b‧‧‧Swelling the slope

25‧‧‧ recess

30‧‧‧Connected shaft

Fig. 1 is a view showing a positional relationship between an armrest and a connecting rod in an unfolded state of the stroller; Fig. 2 is a side view showing a connecting portion of a rear end portion of the armrest and an upper end portion of the connecting rod; 2 is a longitudinal sectional view showing a connecting portion of a rear end portion of the armrest and an upper end portion of the connecting rod; and FIGS. 5(a) to 5(c) are diagrams showing the folding operation. a diagram showing the change in the positional relationship of the armrest and the connecting rod; Fig. 6 is a cross-sectional view showing a main part of a folding type stroller according to another embodiment of the present invention.

As a basic frame structure thereof, a folding stroller according to an embodiment of the present invention includes: a pair of armrests; a pair of front legs, the upper end of which is rotatably coupled to the armrest, the lower end of which has a front wheel; and the pair of rear legs, the upper end of which is rotatable freely Connected to the armrest, the lower end has a rear wheel; a pair of connecting rods, the upper end of which is rotatably connected to the rear end portion of the armrest, the lower end of which is rotatably connected to the rear leg via the bracket; the width direction connecting member connects the left and right sides Frame member. The upper end portion of the connecting rod is terminated with a position near the connection point with the rear end portion of the armrest. The stroller further includes a hand push lever that can switch between the back push state and the opposite push state, and the hand push bar in the back push state is overlapped at a position outside the link bar.

Hereinafter, an embodiment of the present invention will be described as an example of a stroller having the above-described frame structure, but the present invention is also applicable to a stroller in which a fixed hand pusher in which a connecting rod extends further from a rear end portion of an armrest is formed.

Figs. 1 to 4 show the armrest 10 and the connecting rod 20 in the unfolded state of the stroller, and Fig. 5 shows changes in the positional relationship between the armrest and the connecting rod during the folding operation. The armrest 10 has an upper wall 11 and a pair of side walls 12, and has a state in which the cross section opened downward is in a reverse "U" shape. Upper end portions (not shown) of the front and rear legs are rotatably coupled to the armrest 10.

The connecting rod 20 is rotatably coupled to the armrest 10 via a connecting shaft 30, and the lower end portion thereof is rotatably coupled to the rear leg via a bracket (not shown).

The armrest 10 includes an armrest body and a pair of extensions 13, wherein the armrest body has a rear end face of the upper wall 11 opposite to the front surface of the connecting rod 20. 11a, the extension portion 13 extends rearward from the rear end of the both side portions of the armrest main body to both sides of the connecting rod 20. As shown, the pair of extensions 13 of the armrest 10 are rotatably coupled to the connecting rod 20 via a connecting shaft 30.

With the folding operation of the stroller, the armrest 10 is rotated about the connecting shaft 30, and the angle of intersection of the armrest 10 and the connecting rod 20 changes. The same is true when the stroller does the unfolding action.

Fig. 4 shows a circular arc track C drawn on the rear end surface 11a of the armrest 10 around the connecting shaft 30 at the time of the folding operation or the unfolding operation of the stroller. When the connecting rod 20 is a simple linear tube, the gap between the rear end surface 11a of the armrest 10 and the front surface of the connecting rod 20 is maximized at a midway position during the folding operation of the stroller or at a midway position during the unfolding operation. When the maximum gap exceeds 5 mm, the possibility of pinching a finger or clothing is increased. On the other hand, as long as the maximum gap has a size of 5 mm or less, the possibility of pinching a finger or clothing is lowered.

In the stroller of the embodiment of the present invention, in order to reduce the maximum gap formed between the rear end surface 11a of the armrest 10 and the front surface of the connecting rod 20, in the connecting rod 20, the rear end surface 11a of the armrest 10 during the folding operation The opposing region 21 has a shape that bulges toward the side of the rear end surface 11a. Specifically, the bulging shape of the bulging region 21 of the connecting rod 20 includes a bulging straight portion 21a and a bulging inclined portion 21b, wherein the aforementioned bulging straight portion 21a is opposed to a region lower than the bulged shape region, The protruding position on the armrest 10 side linearly extends in the axial direction, and the aforementioned slanted inclined portion 21b then extends to the lower region of the connecting rod by the aforementioned bulging straight portion 21a.

By having the connecting rod 20 with the above-described swollen portions 21a, 21b, it is possible to further reduce the rear of the armrest 10 during the folding operation of the stroller or during the unfolding operation. The size of the gap g formed between the end surface 11a and the front surface of the connecting rod 20. It is preferable to select the bulging shape of the connecting rod 20 so that the maximum gap has a size of 5 mm or less. Further, it is preferable to adjust the bulging shape of the connecting rod 20 so that the maximum gap has a size of 3.5 mm or less.

In the illustrated embodiment, the bulging shape of the connecting rod 20 has the bulging straight portion 21a and the bulging inclined portion 21b on the front side of the connecting rod 20, but this is an example. As another example, the bulged portion may be expanded to form a stepped shape, or may be expanded to form an arc shape.

In the above-described embodiment, the region of the connecting rod that faces the rear end surface of the armrest during the folding operation or the unfolding operation is formed in a shape that bulges toward the rear end surface side, thereby reducing the folding operation of the stroller. Or the size of the gap formed between the rear end surface of the armrest and the front surface of the connecting rod when the motion is unfolded. As another embodiment for realizing the same operational effect, it is also possible to form a bulge shape instead of forming a concave portion in the connecting rod.

Fig. 6 shows the above embodiment. The basic frame structure of the pushchair is the same as that of the above embodiment. In the illustrated embodiment, in the connecting rod 20, the concave portion 25 is formed in a portion facing the rear end surface 11a of the armrest 10 when the stroller is in the unfolded state. Further, as shown in the figure, when the stroller is in the unfolded state, the rear end surface 11a of the armrest 10 is caught in the recess 25 of the connecting rod 20. In the present embodiment, the region located above the concave portion 25 actually functions as the bulging shape in the above-described embodiment, and therefore, the rear end surface of the armrest 10 at the time of the folding operation of the stroller or the unfolding operation can be reduced. The size of the gap formed between 11a and the front surface of the connecting rod 20.

As a modification of the embodiment of Fig. 6, it is also possible to form a penetration before The hole of the wall replaces the recess 25.

(industrial availability)

The present invention is applicable to a folding stroller capable of effectively preventing finger or clothing from being caught.

10‧‧‧Handrail

11‧‧‧Upper wall

11a‧‧‧ rear end face

12‧‧‧ side wall

13‧‧‧Extension

20‧‧‧ Connecting rod

21‧‧‧ bulging area

30‧‧‧Connected shaft

Claims (5)

A folding stroller comprising: an armrest; a front foot and a rear leg rotatably coupled to the armrest; a connecting rod rotatably coupled to the armrest via a connecting shaft, and rotatably coupled to the rear leg via the bracket; In the folding type stroller in which the folding type stroller is folded or unfolded, the armrest is rotated about the connecting shaft, and the intersecting angle of the armrest and the connecting rod is changed, the armrest has a front side opposite to the connecting rod. The rear end surface of the pair; in the connecting rod, a region that faces the rear end surface of the armrest during the folding operation or the unfolding operation forms a shape that bulges toward the rear end surface side. The folding stroller according to claim 1, wherein the bulging shape is selected such that a maximum gap between the rear end surface of the armrest and the bulging shape region of the connecting rod at the time of the folding operation or the unfolding operation is selected. It is 5mm or less. The folding stroller according to claim 1 or 2, wherein the bulging shape of the connecting rod includes a bulging straight portion and a bulging inclined portion; wherein the bulging straight portion is opposite to the bulging shape The region further below the region extends linearly along the axial direction at the protruding position on the armrest side; the aforementioned slanted inclined portion then extends to the lower region of the connecting rod. A folding stroller as claimed in claim 1 or 2, wherein The armrest includes: an armrest body including the rear end surface; a pair of extending portions extending rearward from a rear end of the armrest main body to both sides of the connecting rod; the pair of extending portions being connectable via the connecting shaft Rotatingly connected to the aforementioned connecting rod. A folding stroller comprising: an armrest; a front foot and a rear leg rotatably coupled to the armrest; a connecting rod rotatably coupled to the armrest via a connecting shaft, and rotatably coupled to the rear leg via the bracket; In the folding type stroller in which the folding type stroller is folded or unfolded, the armrest is rotated about the connecting shaft, and the intersecting angle of the armrest and the connecting rod is changed, the armrest has a front side opposite to the connecting rod. a rear end surface; in the connecting rod, a concave portion is formed in a region facing the rear end surface of the armrest when the stroller is in an unfolded state, and when the stroller is in an unfolded state, the rear end surface of the armrest is caught in the connecting rod Inside the recess.