JPH07242177A - Folding baby carriage - Google Patents

Abstract

PURPOSE:To easily fold down respective parts in the width direction by journalling an upper supporting bar raisably to the inside of a pushing bar via a bracket and installing a lower supporting bar parallel to the upper supporting bar via an arm plate beneath the upper supporting bar. CONSTITUTION:Front leg bars 1 and rear leg bars 2 are pivoted in armrest bars 3, while a pushing bar 4 is pivoted in the rear leg bars 2 foldably via brackets 41, and connecting bars 5 are individually laid between the front leg bars l and between the rear leg bars 2. An upper supporting bar 6 is raisably pivoted in the pushing bar 4 via brackets 61, while beneath the upper supporting bar 6, a lower supporting bar 7 is arranged in parallel to it, and a headrest B is formed of arm plates 8 rotationally laid over both of the supporting bars 6, 7 and side plates 9 laid between two arm plates 8 and the lower ends of the pushing bar 4. Between a head part, supporting plate 10 and a seat floor part, 13, a backrest plate 12 is laid via a mounting belt 15. Therefore, the structure of the backrest part, is provided with stiffness, and the headrest B of rigid structure can be interlockingly folded when a main body is folded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable stroller, and more particularly to a foldable stroller in which a body can be folded in the front-rear direction as well as in the width direction for easy carrying. .

[0002]

2. Description of the Related Art It is well known that a stroller main body is folded close to each other in the front-rear direction so that a space for storing the stroller is small, and for the purpose of facilitating carrying,
It is possible to fold the stroller main body in the front-back direction and at the same time also fold it in a planar U-shape in the width direction.
-40667 (see FIGS. 6 to 8 of the publication) and Japanese Utility Model Laid-Open No. 5-64043 (FIG. 3 of the publication and Claim 3).
It is publicly known by the description such as (see).

[0003]

However, the known stroller constructed so that the stroller body is also foldable in the width direction has a problem that the backrest does not interfere with the folding operation of the body when folded in the width direction. Since the pad portion is formed of a material capable of having a "slack" like cloth, and the both side edges of the cloth are passed over the pushing rod, the structure is adopted (see Japanese Utility Model Laid-Open No. 2-40667 No. 1). (See FIG. 2, FIG. 2 and FIG. 1 of Japanese Utility Model Laid-Open No. 5-64043) It was not possible to provide a backrest with a headrest or the like having a rigid structure for supporting the head of an infant.

For this reason, the head of an infant leaning against the backrest during use of the stroller is wrapped in a cloth backrest having "slack" (slack in U-shaped cross section) in the width direction. There is a drawback that the freedom of movement is obstructed and the head cannot be supported stably.

[0005]

It is an object of the present invention to solve the above-mentioned situation, and a rigid headrest is formed in the upper part of the back support part, particularly in the part for supporting the head of an infant, so that the headrest of the infant during use can be improved. In addition to providing a foldable stroller with a stable head support, the headrest portion can be easily folded in the width direction when the stroller is folded, like other structural parts. is there.

[0006]

SUMMARY OF THE INVENTION According to the present invention, the upper ends of a pair of front leg rods and a pair of rear leg rods are pivotally attached to the tips of a pair of armrest rods, respectively, and the front face is located near the upper ends of the pair of rear leg rods. The lower end of the U-shaped hand push rod is pivotally attached so as to be foldable, and the rear end of the armrest rod is pivotally attached to a portion slightly above the lower end of the hand push rod, so that the pair of front leg rods face each other. Also, in a stroller in which a connecting rod configured to be bendable so as to have a U-shaped planar shape is provided between a pair of rear leg rods, a front shape is U-shaped inside the handheld rod.
In addition to being formed in a letter shape, the base part of the upper support rod, which is formed so that the upper horizontal part can be bent so that the planar shape is U-shaped, can be pivoted near the base end part of the hand pushing rod via a bracket. And a lower support rod formed so as to be bendable so as to have a U-shape in plan view via an arm plate formed in an L shape below the lower support rod, which is parallel to the upper support rod, and
The arm plate is rotatably attached to the upper supporting rod and the lower supporting rod, and the upper supporting rod and the lower supporting rod are configured so as to be bent in a planar U shape at the same position as the connecting rod. The main point of the invention is the structure of the folding stroller.

[0007]

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

The stroller generally indicated by A is known as a folding stroller and has wheels 11 at the lower end.
The upper ends of the pair of front leg rods 1 and 1 to which the wheels are attached and the upper ends of the pair of rear leg rods 2 and 2 to which the wheels 11 are attached to the lower ends are pivotally attached to the lower surfaces of the tip ends of the pair of armrest rods 3 and 3, respectively. Near the upper ends of the rear leg rods 2 and 2, the lower end of a hand pushing rod 4 having a U-shaped front shape is attached to the brackets 41 and 41.
It is pivotally attached so that it can be folded via the
The rear end of the armrest rods 3, 3 is pivotally attached to a portion slightly above the lower end of the stroller, and the stroller body is opened and closed in the front-rear direction (approaching operation and separating operation). Of the front leg rods 1, 1 and the pair of rear leg rods 2, 2 facing each other are pivoted at two points 51, 51. As a result, the connecting rods 5 configured to be bendable so as to have a U-shaped planar shape are provided across the connecting rods.

The push rod 4 has a horizontal upper portion (grip portion).
Are pivoted at two locations 42, and like the connecting rods 5 and 5, are configured so that they can be folded to have a U-shaped planar shape.

The formation positions of the pivotally connecting portions 42, 42 formed on the upper horizontal portion (grip holding portion) of the hand pushing rod 4 are, when viewed from the front, a pair of front leg rods 1, 1 and a pair of rear leg rods 2, 2. A location is selected which is the same position as the pivotally-attached portions 51, 51 formed on the connecting rods 5, 5 provided between the two.

Reference numeral B denotes a headrest formed above the back support part, which is formed in a U-shape and has both ends which are pivotally attached to the middle part of the push rod 4 via brackets 61, 61 so as to be capable of undulating. A rod 6 and a lower support rod 7 provided in parallel with the upper support rod 6 at a lower position, and an L-shape that is rotatably attached to both horizontal portions of the upper support rod 6 and both ends of the lower support rod 7. Arm plates 8 and 8 and two arm plates 8 and 8 and side plates 9 and 9 which extend across the lower end of the push rod 4. Is a head support plate having an appropriate width and having a side surface formed in an inverted L shape.
The upper and lower ends of 10 are pivotally attached so that they can be undulated and rocked.

The upper support rod 6 and the lower support rod 7 are foldable hand push rods 4 having a U-shape in a plan view.
Also, when the stroller main body A is folded in the width direction, the stroller main body A is foldably pivotably attached at the same position as the pivotal attachment portions (42, 42 and 51, 51) of the connecting rods 5, 5. In addition, the headrest B is also configured such that the plane shape is folded in a U shape at the same time. (Refer to the details of FIGS. 3 and 4)

The L-shaped arm plates 8 and 8 are formed with through holes 81 and 81 respectively at both ends, and one of the two through holes has a through hole 81 through which the horizontal portion of the upper support rod 6 is inserted. , The other through hole 81
Both end portions of the lower support rod 7 are rotatably fitted in.
(See FIGS. 3 and 4)

The lower ends of the side plates 9 and 9 are pivotally attached to the lower end of the hand pushing rod 4 so as to be able to rise and fall, and the upper ends thereof are outer surfaces (L) of the central portions of the arm plates 8 and 8 formed in an L shape. It is rotatably attached to a letter-shaped bent base end).

The head support plate 10 has mounting arm rods 14, 14 of appropriate length on the upper back surface so as to project so that the side surface has an inverted L-shape. The mounting arm rod 14 has an upper support rod. 6 is rotatably pivoted, and the lower part of the head support plate is rotatably pivoted on the lower support rod 7.

Numeral 12 is between the head support plate 10 and the seat floor 13,
This is a back support plate passed through the attachment belts 15 and 15, and is for supporting the middle portion of a back support cloth (not shown) passed to the pair of opposing side plates 9 from the back side.

The head support plate 10 prevents the infant's head from moving above the backrest when the headrest B is in a fully reclining state (when the entire backrest is most inclined). In this case, the head support plate 10 stands up at a right angle to the back support plate 12 and exerts its effect. (See Figure 2)

Reference numeral 16 denotes a reclining operation portion of the headrest B, which is composed of a tilting operation body a slidably mounted on the upper support rods 6 and 6, and a support link b extending between the tilting operation body a and the push rod 4. I am configuring.

The tilting operation body a has a fitting hole formed on a lock receiving rod d fixed to the upper support rods 6 and 6 by a locking projection (not shown) protruding on the inner surface thereof by the operation of the operating claw c. e
The angle of inclination (reclining angle) is selected by selectively fitting to e.

Although not shown in the drawings, the back-rest cloth is made of a fabric having a size capable of closing the inner portion surrounded by the hand-pushing rod 4, and a bag-like body formed on both side edges thereof. Is formed in a U-shaped cross-section with the side cloth of FIG. The back rest plate 12 is brought into contact with the middle part of the main body of the backing cloth, and the upper end of the back rest main body is used so as to cover the entire headrest B.

[0021]

The effects of the present invention configured as described above are as follows.

(1) Since the headrest B is attached to a portion surrounded by the hand pushing rod 4, the stroller is constructed so that it can be folded in the front-back direction and at the same time folded in a planar U-shape. It becomes possible to make the structure part having rigidity, and it becomes possible to completely solve the insufficient rigidity of the back rest part which the stroller of this type of structure conventionally has.

(2) The structure of the headrest B is composed of an upper bearing rod 6 and a lower bearing rod 7 parallel to the upper bearing rod 6, and the two bearing rods 6 and 7 are both pivotally attached at two intermediate portions. As a result, since the headrest B portion has a rigid structure, the headrest B portion can be folded so that the headrest B portion also has a planar U-shape in conjunction with the folding of the stroller body. Has an excellent effect that enables

[Brief description of drawings]

FIG. 1 is a perspective view of a stroller with a backrest portion standing upright.

FIG. 2 is a perspective view of the stroller in which the backrest is tilted.

FIG. 3 is a perspective view of the main part in FIG. 2 as seen from the front side.

FIG. 4 is an enlarged perspective view of a part of the backrest plate and the headrest that are disassembled and shown.

FIG. 5 is a perspective view of the stroller showing a front-back direction and a U-shape when folded.

[Explanation of symbols]

 A Stroller 1 Front leg rod 2 Rear leg rod 3 Armrest rod 4 Hand push rod 41 Bracket 42 Bracket 42 Pivoting part 5 Connecting rod 51 Pivoting part B Headrest 6 Upper support rod 61 Bracket 7 Lower support rod 8 Arm plate 81 Through hole 9 Side plate 10 Support plate 12 Back support plate 13 Seat floor 14 Mounting arm rod 15 Mounting belt 16 Headrest operating part a Tilt operating body b Supporting link c Operating claw d Locking receiving rod e Fitting hole

Claims (4)

[Claims] 1. The pair of front leg rods and the upper ends of the pair of rear leg rods are pivotally attached to the tip ends of the pair of armrest rods, respectively, and the front shape is U-shaped near the upper ends of the pair of rear leg rods. The lower end of the hand-push rod formed into a shape is pivotably attached so as to be foldable, and the rear end of the armrest rod is pivotally attached to a portion slightly above the lower end of the hand-push rod. In a stroller in which a connecting rod configured so as to be bendable so as to have a U-shaped planar shape is provided between the leg rods, a front shape is formed in a U shape inside the upper part while being surrounded by a hand pushing rod. The base end portion of the upper support rod, which is formed to be bendable so that the planar shape becomes a U-shape, is pivotally attached to the hand support rod near the base end portion via a bracket,
A lower support rod formed so as to be bendable so as to have a U-shaped planar shape is attached below an arm plate formed in an L shape in parallel with the upper support rod, and the arm plate is an upper support rod. A foldable stroller that is rotatably attached to a rod and a lower support rod, and the upper support rod and the lower support rod are configured to be bent in a planar U-shape at the same position as the connecting rod. 2. The folding according to claim 1, wherein an upper end portion of a side plate is pivotally attached to a bent base end portion of an L-shaped arm plate, and a lower end portion of the side plate is pivotally attached to a lower end portion of a hand pushing rod. Stroller. 3. A head support plate rotatably attached to the central portion of the upper support rod and the lower support rod so as to project on the rear surface of the upper end of the head support plate so that the side surface has an inverted L-shape. 3. The foldable type according to claim 1, wherein the upper support rod is rotatably pivotally attached to the upper support rod via the mounting arm rod, and the lower end portion of the head support plate is pivotally attached to the lower support rod. stroller. 4. A tilt operating body slidably attached to the upper support rod is selectively fitted into a fitting hole formed in a locking receiving rod fixed to the upper support rod, and the tilt operating body and the hand pushing rod are attached. The foldable stroller according to claim 3, wherein the upper support rod is configured to be reclining by the support link provided to and.