JPH0719948Y2 - Folding and unfolding mechanism of hood in infant furniture - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is applied to a hood for an awning that is detachably attached to baby furniture such as a baby rack, a crib, a baby chair or a stroller. It relates to the deployment mechanism.

[Prior art and its problems]

2. Description of the Related Art It has been known in the past to install sunshades on furniture for infants, particularly infant carriers such as strollers.

A stroller equipped with a hood for awning, which has been publicly known, is a hood including several hood bones, and the base end portions of the hood bones are gathered in one place and pivotally attached to the base so that the hood can be deployed like a fan. The surface is expanded like a fan or folded to adjust the irradiation of sunlight to the inside of the hood.

Further, in these known awning hoods, a stopper is attached to the side surface of the hood in order to maintain the developed state accurately when the hood bone is deployed.

The stopper is configured so that the tip ends of the two links having the base ends attached to the hood bones located at the front and rear ends can be folded into a dogleg shape, and the two links can be folded. The structure is such that the fully extended state of the hood can be maintained when fully extended.

However, since the above-described stopper for maintaining the deployment is combined so that the two links are almost linearly extended in the shape of a single rod when the hood is deployed, when it is necessary to fold the hood, It has been pointed out that there is a structural inconvenience that the hood cannot be folded unless the shaft attachment portion of the stopper extended in a straight line is directly touched to fold the two links.

In addition, in the conventional structure, when it is necessary to fold the linearly extended stopper, it cannot be folded unless the stopper is directly touched to perform the folding operation, so the folding mechanism cannot be understood. If a person tries to fold it by touching a part other than the folding mechanism, or if the person's hand accidentally touches the awning or the windshield hood with the stopper extended, the stopper mechanism,
Alternatively, it has been pointed out that there are drawbacks such as damage to the hood bone portion to which these mechanisms are attached.

[Purpose of device]

The present invention has been made in view of the above circumstances and intends to cope with the situation. By extending a stopper constituted by two links each of which has a base end portion attached to a hood bone, the hood deployment is accurately maintained. Of course, when you want to fold or unfold the hood, if you apply an external pressure for expanding or folding to the appropriate part of the hood, the link that constitutes the stopper can be easily folded according to this external pressure. An object is to provide a folding and unfolding mechanism of a hood in an infant furniture configured to be able to be extended.

[Key points of device]

The present invention comprises a combination of a bifurcated link and a rod-shaped link, each of which has its base end pivotally attached to the hood bone, and whose ends are pivotally attached to each other. And a fitting hole into which a locking projection protruding from the side surface of the bar-shaped link is fitted is formed in at least one of the branch plates, and the overall shape is formed into a "tuning fork" shape. Consists of a flat plate that fits around the tip of the bifurcated link near the tip, and has a slightly curved rod shape so that the overall shape does not become a straight line when the bifurcated link pivotally attached to the tip and the rod link are extended. It is configured to be foldable so that when the two links are extended, the locking projection formed near the tip of the rod-shaped link is fitted and locked in the fitting hole formed in the bifurcated link. Infants configured to The folding and deployment mechanism of the hood or the like in the furniture are the main points of the invention.

〔Example〕

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

FIG. 1 shows an example in which a hood 1 and a windshield hood 2 are attached to a stroller B, and FIG. 2 shows the windshield hood 2 in the same figure.
An example in which the hood is stored inside the hood 1 is shown.

3 shows an example in which the folding and unfolding mechanism of the present invention is applied to the hood 1, and FIG. 4 shows an example in which the folding and unfolding mechanism of the present invention is applied to the windshield hood 2.

In the figure, 11 is a hood sheet made of an appropriate material, and several hood bones 12 ... 12 are stretched inside the hood sheet.

The structure in which the hood bones 12 ... 12 are combined is a known structure, and the base end portions of the hood bones 12 ... 12 are gathered in one place and pivotally attached to each other so that they can be deployed in a side fan shape.

The material of the hood sheet 11 is selected according to the use. For example, when the hood sheet 1 is used as the hood 1 for the sun shade, the cloth material is used (see FIG. 3), and when it is used as the hood 2 for the windshield, it is seated inside. It is preferable to use a transparent synthetic resin film or the like that does not obstruct the sight of the infant.

When used as the windshield hood 2, a large number of small holes 13 ... 13 for ventilation are formed in the side surface portion.

The folding and unfolding mechanism of the present invention, indicated generally by the reference numeral 3, is constituted by two links 3a and 3b arranged so that their proximal ends are pivotally attached to the top ribs 12, 12, respectively.

One of the two links 3a is formed in a so-called "tuning fork" shape in which the tip portion is bifurcated by a predetermined length, and at least one of the two branched plates is formed. Has a fitting groove 31 for fitting the locking projection 32 protruding from the other link 3b. (See FIG. 7) The other link 3b has a plate thickness that can be inserted into the bifurcated portion of the bifurcated link 3a, and is configured by using a flat plate having an appropriate length. , The vicinity of the tip is bent in an "<" shape by an appropriate length, and the locking projections 32, 32 are provided at appropriate intervals on both sides sandwiching the shaft hole 34 formed in the bent portion or one side of the shaft hole 34. Is projected. (See FIG. 7) When the protruding positions of the locking projections 32, 32 are provided on both sides of the shaft hole 34, they are set to the illustrated positions, and when only one side is provided, two protruding positions are provided. Fitting groove when the links 3a and 3b are extended
It is necessary to select the position where it will polymerize with 31.

The protruding height of the locking projections 32, 32 is the bifurcated link 3a.
The link 3a can get over the locking projection 32 when the folding operation of the
Fits into the fissure 31 that is split into a bifurcated plate,
The height is so high that it cannot be disengaged due to overcrowding. (Forked link 3a
When the person gets over the locking projection 32, the bifurcated portion operates so as to forcibly spread the gap. ) The bifurcated link 3a is one in which the tip end is pivotally attached to the "dogleg" bent portion of the rod-shaped link 3b so as to be integrated. Specifically, the bifurcated link 3a is provided at the tip end of the bifurcated link 3a. Align the shaft holes 33, 33 with the shaft hole 34 formed in the bent portion of the rod-shaped link 3b,
A pivot 35 is inserted into the shaft hole 34 so as to be foldable.

Reference numeral 36 is a stopper formed at the tip of the rod-shaped link 3b so as to have a T-shaped cross section, and is for preventing the bifurcated link 3a pivotally attached so as to be foldable from extending in the opposite direction.

In the figure, 37 and 37 are two links 3a and 3b, which are the ribs 12 and 12, respectively.
It is a shaft hole for attaching to the
It is fixed to.

Among the structures illustrated in this embodiment, the following can be modified as follows.

i Regarding the structure of the rod-shaped link 3b, the shape of the rod-shaped link 3b combined with the bifurcated link 3a is
The tip is bent in the shape of a dogleg, but it is not limited to this. It is a structure that combines two links so that the overall shape does not become a straight shape when both are extended. Anything will do as long as it exists. As a structure for achieving this object, for example, the rod-like link 3b is bent in a V shape.

The rod-shaped link 3b has an arc-shaped shape.

Such a structure is conceivable.

ii Regarding fissure groove 31 formed in bifurcated link 3a In the embodiment, fissure groove 31 is formed only in one of the branch plates, but it can be formed in both of the branch plates. Further, the shape of the fissure 31 does not need to be elongated, and the locking projection 32 is provided at a portion corresponding to the protruding position of the locking projection 32 when the two links 3a and 3b are extended or folded. It can also be formed as a through hole having a size corresponding to the shape.

Further, in the present embodiment, the mating mechanism to which the hood 1 and the windshield hood 2 are attached is illustrated as a stroller, but the applicable furniture for infants is not limited to this, and for example, an infant chair, a baby rack ( Needless to say, it can be freely applied to (including a chair that can also be used as a high chair).

[Operation of device]

 The present invention constructed as described above operates as follows.

(1) When expanding the hood or windshield hood.

When the hood 1 or the windshield hood 2 is in the folded state, the folding and unfolding mechanism of the present invention has both ends of the hood bone.
Two links 3a and 3b pivotally attached to 12 and 12 are folded into two in a V shape around the pivotal attachment portions at the tips, and rod-shaped links
The locking protrusion 32 protruding from the lower end of 3b has a bifurcated link 3a.
The folded state is maintained by fitting in the fissure groove 31.
(See FIG. 5, FIG. 6 and FIG. 9 (d)) In this state, if the hood 1 or part of the windshield hood 2 is lifted by hand, the hood 1 or the like immediately starts to be deployed.

When the hood 1 and the like start to be deployed, two links 3a and 3b whose base ends are pivotally attached to the hood bones 12 and 12 and which are folded in a V shape.
Also works in tandem with this.

When the two links 3a, 3b are started to be deployed, the locking projection 32 operates so as to ride over the plate portion around the fissure 31 in accordance with the movement of the two links 3a, 3b, and the engagement between the two is forcibly released. 8
The state is expanded from the state shown in Fig. (D) to the state shown in (c) → (b), and finally the state shown in (a) (the tip portion is bent in a "<" shape for a small length). Can be extended.

When extended to the state of FIG. 8 (a), the locking projection 32 projecting from the tip of the rod-shaped link 3b fits into the fissure groove 31 part fractured into the bifurcated link 3a, and Expansion of both is restricted, and as a result, two links 3a pivotally attached near the tip.
And 3b are stably maintained in the extended state (the developed state of the hood).

Two links 3a and 3b forming a folding and unfolding mechanism
Since the base end portion of the hood is pivotally attached to the hood bones 12, 12, the above operation can be accomplished by operating while holding the hood 1 or a part of the windshield hood 2. It is not necessary to operate each part one by one.

(2) When folding a hood or a windshield hood.

In this case, the operation completely opposite to the operation (1) above may be performed. That is, if the hood 1 in the state shown in FIG. 3 or FIG. 4 or a part of the windshield hood 2 (for example, the tip of the hood 1 or the rear end of the windshield hood 2) is pushed in by the hand in the folding direction. As shown in FIG. 8 (a), the two links 3a and 3b, whose tip portions were bent in a "<" shape for a small length, should be bent inward. Folded in half.

When the two-folding operation of the two links 3a and 3b progresses, the locking projection 32 protruding from the tip of the rod-shaped link 3b is forcibly released from the fissure groove 31 portion formed in the bifurcated link 3a. Results The two links 3a and 3b are shown in (b) →
The sheets are folded in the order shown in (c) → (d), and finally the state shown in (d) of FIG.

In this case, since the locking projection 32 protruding below the rod-shaped link 3b fits into the fissure 31 formed in the forked link 3a, the folded state can be firmly maintained in this state.

Two links 3a and 3b forming a folding and unfolding mechanism
Since the tip of each is pivotally attached to the top bone 12, 12, respectively,
As described in the unfolding operation of (1), the operation for folding can achieve its purpose only by holding a part of the hood 1 or the windshield hood 2 and pushing it in. Therefore, it is not necessary to operate the folding and unfolding mechanism portion by step.

[Effect of device]

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

(1) Two links 3a that make up the folding and unfolding mechanism
The links 3a and 3b are pivotally connected to each other so that they will not be perfectly straight even in the deployed state. Therefore, the two links 3a and 3b (particularly the pivotal parts) are purposely used for the operation.
It is not necessary to directly touch the
If an operation such as folding is performed while holding a part of the hood 1 or the windshield hood 2, the folding and unfolding mechanism can be easily started by the external pressure on the hood or the windshield hood.

(2) In the conventional folding and unfolding mechanism, since it is necessary to directly touch the link portion that can be folded in two with a hand, a finger, or the like, there is a risk that a fingertip or the like is erroneously pinched during the folding operation. It is safe enough to avoid danger.

[Brief description of drawings]

The figures show several embodiments of the present invention.
FIG. 2 is a perspective view showing an example applied to a stroller, FIG. 2 is a perspective view showing a state in which the windshield hood in the same figure is housed inside a hood, and FIG. 3 is a perspective view showing a state where the hood is expanded. FIG. 4 is a perspective view showing a state in which the windshield hood is expanded, FIG. 5 is a perspective view showing a state in which the hood is folded, FIG. 6 is a perspective view showing a state in which the windshield hood is folded, and FIG. FIG. 8 is an exploded perspective view showing the parts, and FIG. 8 is a front view showing the order of folding, (a) shows the time of unfolding, (b) to (c) show the middle of the process, and (d) shows the folding. It shows the end time. B: stroller, 1 ... hood, 2 ... windshield hood, 11
…… Porce sheet, 12 …… Bone frame, 13 …… Small hole, 3 …… Folding mechanism, 3a …… Forked link, 3b …… Bar link, 31…
… Fissure, 32 …… Locking projection, 33 …… Shaft hole, 34 …… Shaft hole, 35
…… Axis, 36 …… Stopper, 37 …… Shaft hole, 38 …… Fixed shaft

Claims (2)

[Scope of utility model registration request] 1. A combination of a bifurcated link and a rod-shaped link, each of which has a base end pivotally attached to a hood bone and pivotally attached to each other near a tip end thereof, the bifurcated link having a tip end having a predetermined length. And a fitting hole for fitting a locking projection protruding from the side surface of the rod-shaped link is formed on at least one of the branch plates, and the overall shape is formed into a substantially “tuning fork” shape. The rod-shaped link is composed of a flat plate that fits around the tip of the bifurcated link at the tip of the bifurcated link.The bifurcated link with the tip pivoted and the rod-shaped link are slightly curved so that the overall shape does not become a straight line when extended. It is configured to be foldable so as to present a rod-like shape, and when the two links are extended, a locking projection formed near the tip of the rod-shaped link fits into a fitting hole formed in the bifurcated link. Configured to lock Folding and deployment mechanism of the hood or the like in the infant for furniture. 2. A utility model registration claim according to claim 1, wherein a stopper for abutting an upper edge portion of the fork-shaped link formed in a "tuning fork" shape to restrict excessive bending is attached to the upper surface of the tip of the rod-shaped link. A folding and unfolding mechanism for a hood, etc. in the described furniture for children.