JPH0530550Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a foldable stroller that prevents fingers from being caught in the gaps that occur at the abutting portions of the leg rods. It's about structure.

[Prior art and its problems]

Various types of strollers for transporting infants are known.

They are widely used as those with a so-called reclining mechanism that allows the relationship between the seat floor on which the infant sits and the backrest that supports the infant to be freely changed from a sitting position to a lying position. Are known.

Strollers with this structure are, for example,
As described in Japanese Patent Publication No. 25980 and Japanese Patent Publication No. 62-13230, it is also known that when the stroller is not in use, the frame such as the leg levers and push rods can be folded for compact storage. It is being

However, in the case of the above-mentioned folding structure,
The lower end surface of the hand lever is joined to the upper surface of the center part in the longitudinal direction of the rear leg lever via a bracket formed in an L-shape on the side. When folding this, the L-shaped Due to the structure in which the bracket rotates downward from the contact surface with the rear leg lever and folds, the following drawbacks have been pointed out. In other words, when lifting a stroller from a roadway onto a sidewalk with a step, the front wheels can be lifted by pushing down on the push rod, so there is no particular problem in getting the front wheels over the step. It is necessary to lift the wheel from the ground surface, so lifting the hand lever (lifting up)
As a result, the contact surface between the lower end of the hand lever and the rear leg lever repeatedly separates and comes into contact with each other, and as a result, the gap between the lower end surface of the hand lever and the contact surface between the rear leg lever gradually widens and restores. gender is likely to be impaired.

When an infant is sitting on the seat floor, the infant's hand may get caught around the joint between the rear leg lever and the lower end of the push lever. An infant's fingertips may get stuck in the gap between the lower end of the hand lever and the joint surface with the hind leg lever.If the hand lever is lowered in this state, the infant's fingertips may fall under the hand lever. Accidents such as being crushed and crushed between the end face and the rear leg lever may occur.

Problems associated with the occurrence of such gaps were less of a problem when the load on the leg rods was light because the gaps occurred less frequently, but if the lower surface of the seat floor or the lower part of the leg rods It has been pointed out that when a large luggage compartment or the like is attached to a vehicle, the load on the bottom becomes extremely large, and the above-mentioned troubles occur more frequently.

[Purpose of invention]

In view of the above-mentioned circumstances, the present invention attempts to eliminate these drawbacks, and when a gap is created between the lower end of the hand lever and the upper surface of the rear leg lever due to the lifting operation of the hand lever, A folding stroller is provided in which a slide block that is slidably mounted close to the location where the gap occurs moves instantaneously as the hand lever rises to close the gap, thereby preventing the above-mentioned trouble from occurring. The object is to provide a structure to prevent finger pinching.

[Key points of the idea]

In the present invention, the lower end of the hand lever is brought into contact with the upper surface of the rear leg lever at an appropriate position so as to form a substantially T-shape, and the rear leg lever and the hand push lever are configured to be foldable via a bracket and a link. In this stroller, there is a height on the upper surface of the rear leg lever close to the part where the lower end surface of the hand lever comes into contact with which can close the gap that is created between the surface where the lower end surface of the hand push lever and the rear leg lever come into contact when the hand lever lifts up. The key point of the invention is a structure for preventing finger pinching in a folding stroller, in which a slide block formed with a contact surface with a grip always applies a force in the closing direction and is slidably attached.

〔Example〕

An optimal embodiment of the present invention will be described below with reference to the drawings.

However, it goes without saying that the present invention is not limited to the structure shown in the embodiment.

1 is the front leg rod, 2 is the rear leg rod, and the two leg rods 1
and 2 are pivotally connected to the tip of the armrest rod 3 at the upper end via a pivot, so that the distance between the two leg rods 1 and 2 can be expanded and expanded in a lateral 8-shape by opening and closing operations.

Reference numeral 4 denotes a hand lever formed in a U-shape or U-shape from the front, and its base end is pivotally connected to the tip of the folding operation bracket 5.

The folding operation bracket 5 has a substantially L-shaped side surface, and its lower end, which is attached parallel to the rear leg lever 2, is pivotally attached to the rear leg lever 2, and the lower end of the push lever 4 is pivoted to the rear leg lever 2. It is attached so that the attached tip portion is parallel to the back surface of the shaft rod (the upper surface of the shaft along the length direction) of the rear leg rod 2. (The lower end surface of the hand lever is in contact with the central back surface of the rear leg lever.) When performing a folding operation, the folding operation bracket 5 is moved below the rear leg lever 2 using the lower end pivoting portion as a fulcrum. It is constructed so that it is reversed while drawing an arc.

Further, the rear end portion of the armrest rod 3 is pivotally mounted slightly above the attachment point between the hand lever 4 and the folding operation bracket 5.

Reference numeral 6 denotes a slide block for preventing gaps, which is slidably attached near the portion where the rear leg lever 2 and the lower end of the hand lever 4 contact.

As illustrated in detail in FIGS. 4a to 4d and FIG. is a sliding surface 62 having a width that almost matches the width of the rear leg lever 2, and a guide plate 63 of an appropriate length is suspended downward from one outside of the sliding surface 62. .

The cross-sectional shape (side shape) of the contact surface 61 formed at the tip of the slide block 6 is as shown in FIG. 4a,
As illustrated in FIG. b and FIG. 5, from the side close to the push rod 4 to the side far from the push rod 4, the slope becomes an upwardly inclined surface (the slope tilted to the left in FIG. 5). In addition to this structure, it is also possible to form a vertical surface as illustrated in FIGS. 2 and 3.

In the case of the structure illustrated in FIGS. 4a and 4b and FIG. 5, when the lower end of the hand lever 4 touches this inclined surface when it descends, the inclined surface is automatically pushed back to the outside. I can demonstrate it.

When the contact surface 61 is an inclined surface, the inclination angle of the inclined surface is an angle that matches the contact angle that appears on the surface where the rear leg lever 2 and the hand lever 4 contact, or is slightly smaller than that angle. A large angle is desirable.

A long and narrow sliding groove 64 is bored in the rear part of the slide block 6, and a locking pin 65 that serves as a sliding guide is installed in this sliding groove 64.
is inserted.

The lower part of the locking pin 65 inserted through the sliding groove 64 is fixed to the rear leg lever 2.

The slide block 6 slides on the armrest rod 3.
Although it is desirable that the rear leg lever 4 be configured to be able to slide by its own weight along the rear leg lever 4 that is configured to be inclined toward the tip of the rear leg lever 4, it is not limited to this. It is also possible to urge the slide block 6 to always slide toward the lower end of the hand lever 4 by the force of a spring (not shown) attached with repulsive force.

Further, the shape of the slide block 6 is not limited to that in the embodiment, and may be any shape as long as it has an appropriate size to close the gap.

Reference numeral 7 denotes a seat floor plate attached to the front leg lever 1 and the rear leg lever 2 on both sides, and a back plate 8 made of hard synthetic resin, canvas, or other suitable material is attached to the rear end of the seat floor plate 7. is standing up.

[Effect of idea]

The present invention configured as described above has the following effects.

(1) Since the slide block 6 is slidably attached above the area where the rear leg lever 2 and the hand lever 4 contact, when the hand lever 4 is lifted to get over a step on the road, the lower end surface of the hand lever 4 is removed. Even if a gap occurs between the rear leg lever 2 and the back surface of the rear leg lever 2 that would trap an infant's fingertips, the slide block 6 slidably attached above this contact surface will immediately slide toward the gap. Since it acts to close the gap, it provides excellent safety by preventing accidents such as an infant's fingertips being accidentally caught in the gap.

(2) The slide block 6 is attached so that it always slides along the rear leg lever 2 due to its own weight,
Since the contact surface 61 side formed on the side that contacts the hand lever 4 is always positioned in contact with the surface where the hand push rod 4 and the rear leg lever 2 contact, when a gap occurs due to the lifting of the hand push rod 4, the contact surface 61 can be instantly removed. This makes it possible to fill in the gap, and there is no gap at the lower end of the push rod except when a forced folding operation is performed.

As described in the second claim of the utility model registration, if a spring (not shown) with elastic force is installed inside the slide block 6, the sliding force toward the hand lever 4 side will be increased. It can be made even more powerful.

(3) The structure is simple and can be provided at low cost.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, and Fig. 1 is a side view of the entire stroller, and Fig. 2 is an enlarged perspective view of the main parts, especially showing a state in which the lower end of the push rod is slightly raised. Fig. 3 is an enlarged perspective view showing the hand lever in the same figure as above in the lowered state of complete contact, and Fig. 4 is a view showing the slide block, where a is a front view, b is a rear view, and c is a plan view. Figure, d
5 shows a right side view, and FIG. 5 is a sectional view showing the state of attachment to the rear leg lever. 1... Front leg lever, 2... Rear leg lever, 3... Armrest lever, 4... Hand lever, 5... Bracket for folding operation, 6... Slide block, 7... Seat floor plate, 8... Back rest. Board.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The lower end of the hand lever is brought into contact with the upper surface of the rear leg lever at an appropriate position so as to form a substantially T-shape, and the rear leg lever and the hand lever are connected to the bracket and the link. In the stroller configured to be foldable through the stroller, the lower end surface of the hand lever and the rear leg lever come into contact with the upper surface of the rear leg lever near the part where the lower end surface of the hand push lever comes into contact, due to the lifting of the hand push lever. To prevent finger pinching in a folding stroller, a slide block having a contact surface of a height capable of closing a gap formed in the section is slidably attached by always applying a force in the closing direction. (2) The contact surface of the slide block that contacts the lower end of the push rod is formed as an inclined surface that slopes upward from the end close to the push rod toward the side farther from the push rod; A finger pinch prevention structure in a folding stroller according to claim 1, wherein the surface is configured to be moved back by contacting the lower end surface of the descending push rod.