JP6143522B2 - Bicycle child seat cushion - Google Patents

Description

  The present invention relates to a cushion used by being placed on a seat surface of a child seat attached to a handle portion or a rear loading platform of a bicycle.

  There are two types of child auxiliary chairs (child seats) that can be attached to conventional bicycles: those that are fixed to the rear seat and those that are fixed to the handle. At present, the center of the handle is curved in a U-shape. There is also a child seat pre-installed on the U-shaped curved portion.

Examples of such child seat cushions include those described in the following patent documents.
This cushion can protect the user's knee back or thigh back, has a size that is substantially the same as or slightly smaller than the seat surface of the child seat, and when this is placed on the seat surface of the child seat A bulging portion is formed on both sides of the front end.

This bulge fits with the infant's knee or thigh back sitting on the child seat.
The cushion has a substantially heart shape, and the cushion is filled with a low-resilience urethane foam, and both ends of the cushion are sewn to both ends of an elastic member to be attached to the child seat. Thereby, since the elastic member can be disposed on either the back surface side or the front surface side, both the front side and the back side can be disposed on the top surface side. Further, two string members for mounting are provided at appropriate positions on the side edge of the cushion.

Utility Model Registration No. 3111097

By the way, at present, very large and deluxe child seats have been developed, and the whole is made of a synthetic resin material that wraps around the infant's body, and a headrest that can be adjusted in height is provided. Existed.
Furthermore, in the child seat of such a deluxe equipment, a seat belt for holding the infant's body is also equipped, and the seat belt was also of a three-point support type in the past, but now in 2011 The three- to five-point support type is standardized by the revised SG standard, and the seat belt (body holding member) disposed on the crotch portion of the infant to be seated is standard.

Therefore, the object of the present invention is to improve a cushion used in a child seat equipped with this type of five-point support type seat belt (body holding member).
First of all, since the conventional cushion is only placed on the seat surface of the child seat, the cushion is used when the infant is put on and off, or when the infant gets on and off. However, it is a problem that the present invention is to solve this problem.

In order to prevent the cushion from falling, it is necessary to fix the cushion to any part of the seat. However, it is also a problem to make it easy to attach, fix, and remove.
Furthermore, in the above child seat, the main body is made of synthetic resin, and the cushion member made of a rubber material is appropriately covered on the surface, but there is also a problem that the cushioning property is bad. It is also an object of the present invention to improve cushioning properties.

In order to solve the above-mentioned problems, a first aspect of the present invention is a cushion placed on a seat surface of a child seat attached to a bicycle, and is provided at a front center portion of the child seat seat surface and arranged on an infant's crotch portion. Two or more insertion portions are arranged at different positions from the front edge of the cushion at the position of the cushion corresponding to the body holding member provided, and the body holding member is inserted through these insertion portions. The insertion portion comprises a transverse cut having an appropriate width substantially parallel to the front side edge of the cushion, and a longitudinal cut is provided from the front side edge of the cushion toward the cut. A body holding member disposed in the crotch portion is inserted from the longitudinal cut into the transverse cut, and further between the transverse cut and between the lateral cut and the front side edge of the cushion. Then, by fixing the connection fixing member disposed so as to straddle the longitudinal cut, the vertical cut is closed, and one end of the connection fixing member is fixed to one side of the vertical cut, A bicycle seat cushion for a bicycle characterized in that the other end can be locked and detached from the other side of the longitudinal cut .
Here, “front” in the “front center portion of the child seat seat surface” or “front” in the “front edge of the cushion” means “the forward direction of the bicycle”.

  According to a second aspect of the present invention, in the first aspect, the connecting and fixing member is formed of a band-shaped member, and locking portions are provided at both ends of the band-shaped member, and longitudinal cuts corresponding to the locking portions are provided. By providing a latch receiving part on both sides of this, the longitudinal cut is closed by mutually locking these latching part and the latch receiving part, and on the other hand, by releasing the said latching part and the latch receiving part The bicycle child seat cushion is characterized in that the locking of both is released.

According to a third aspect of the present invention, in the first or second aspect of the invention, the gel is disposed inside the cushion other than the portion where the insertion portion is provided, and the lower surface of the gel has substantially the same outer shape as the cushion. A bicycle child seat cushion comprising a hard core member.

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  In the first aspect of the present invention, one or more insertion parts are provided at the position of the cushion corresponding to the body holding member provided at the front center part of the child seat seat surface and disposed on the crotch part of the infant. It is provided at different positions from the front side edge, and the body holding member can be inserted and attached to these insertion parts. With this, in the cushion according to the present invention, when the infant is placed on or lowered from the child seat In addition, there is no need to worry about the cushion slipping or falling to the ground.

In addition, by providing a plurality of the insertion portions and providing them at different positions from the front side edge of the cushion, it is possible to select any of the plurality of insertion portions and allow the body holding member to be inserted, and the attachment of the cushion The position can be slightly changed in the front-rear direction.
Thereby, it can adapt to the size of the seat surface of the child seat.
The size of the existing child seat is different between the one installed on the handle part and the one installed on the rear cargo bed. With respect to the difference in the size of the seat surface, the cushion according to the present invention is It was devised to be able to handle even the size of.

  The insertion portion is formed from a transverse cut having an appropriate width substantially parallel to the front side edge of the cushion, and by providing a longitudinal cut from the front side edge of the cushion toward the lateral cut, the insertion portion is formed on the infant's crotch. The body holding member to be disposed is inserted and combined from the longitudinal cut to the transverse cut, and then the connection fixing member disposed so as to straddle the longitudinal cut is fixed, whereby the longitudinal cut is obtained. It is closed.

  That is, generally, the body holding member is formed of a seat belt, and the insertion portion is formed from a lateral cut so that the seat belt can be inserted satisfactorily. After the insertion, the longitudinal cut is fixed by the connecting and fixing member and the longitudinal cut is closed, and the inserted body holding member cannot be detached from the insertion portion.

The connecting and fixing member is characterized in that one end thereof is fixed to one side of the longitudinal cut and the other end is engageable and disengageable to the other side of the longitudinal cut.
As a result, the body holding member can be inserted from the vertical cut into the horizontal cut with the other end of the connecting and fixing member detached, and then the other end of the connecting and fixing member detached from the vertical cut is inserted. It can be locked to the other side to close the longitudinal cut.

In the second of the present invention is obtained by embodying the coupling fixing member, that is, to form the connecting and fixing member of a strip-shaped member, the engaging portions provided at both ends of such a belt-shaped member, these engaging Locking receiving portions are provided on both sides of the longitudinal cut corresponding to the locking portion, and the vertical cut is closed by mutually locking the locking portion and the locking receiving portion. By releasing the stop portion, the locking of both is released, and the closing of the longitudinal cut is released.
By adopting such a configuration, the connecting and fixing member can be pre-locked on either side of the longitudinal cut, and if the connecting and fixing member is damaged, it can be easily changed. It is also easy to replace it with a new one.

In the third aspect of the present invention, a gel is disposed inside the cushion, and a hard core material having substantially the same outer shape as the cushion is disposed on the lower surface of the gel. By improving the cushioning property and arranging the core material on the back side, the elasticity of the gel is exerted on the upper surface side, and it is recognized that the appearance and the appearance that the upper surface side is raised are also highly cushioning. Will be able to.

BRIEF DESCRIPTION OF THE DRAWINGS The whole cushion which concerns on one Embodiment of this invention is shown, The (A) is a top view which shows the surface side, The (B) is a back view. It is a disassembled perspective view of the said embodiment. It is a section explanatory view showing the cross section of the cushion concerning the above-mentioned embodiment. It is explanatory drawing which illustrates the state which mounted | wore the child seat fixed to the bicycle based on the said embodiment.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1: shows the whole cushion which concerns on one Embodiment of this invention, The (A) is a top view which shows the surface side, (B) is a back view.
The cushion 10 according to the present invention has a substantially rectangular shape in plan view with a corner portion chamfered, and its internal structure will be described later, but the entire front side 11 and back side 12 have a thickness of about 0.7 mm. Formed from about PVC leather.

As will be described later with reference to FIG. 4, the cushion 10 is placed on a seat surface of a child seat fixed to a handle portion or a loading platform portion of a bicycle.
The upper side of the cushion 10 in the figure is the front F (bicycle traveling direction), and a longitudinal cut 13 having an appropriate length is provided at the center of the front edge 11f.

Two transverse cuts 14 and 14 are further provided substantially in parallel so as to be orthogonal to the longitudinal cut 13.
The lateral cut 14 may be one or three or more.
Any one of the plurality of lateral cuts 14 can be selected and a seat belt (body holding member) provided on the child seat, in particular, a seat belt disposed on the crotch of the infant can be inserted.

  As described above, the body-holding member that holds the infant's crotch portion disposed at the front center portion of the child seat is inserted into the lateral cut 14, and the lateral cut 14 constitutes the insertion portion of the body-holding member.

Reference numeral 20 in the rear view of the cushion 10 illustrated in FIG. 1B indicates a female hook. The female hook 20 is provided in parallel on the left and right sides of the longitudinal cut 13. Yes.
On the other hand, reference numeral 21 in the plan view of the cushion 10 illustrated in FIG. 2A indicates male fastening hooks, and these male fastening hooks 21 are provided at both ends of the belt-like member 15.

The belt-like member 15 can close the longitudinal cut 13 by locking or engaging the male hooks 21, 21 provided at both ends of the belt-like member 15 with the female hooks 20, 20. It can be done.
In this embodiment, two of the belt-like members 15 can be arranged and fixed in parallel with the front side edge portion 11 f of the cushion 10, and these belt-like members 15 are connected to close the longitudinal cuts 13. It constitutes a fixing member.

In the present embodiment, two transverse cuts 14 provided substantially perpendicular to the longitudinal cut 13, that is, substantially parallel to the front side edge portion 11 f of the cushion 10, the lateral cuts 14 are described above. As described above, one or three or more may be used.
As will be described later, the cushion 10 is filled with various elastic members.

FIG. 2 is an exploded perspective view of the embodiment.
As can be clearly understood from this figure, a longitudinal cut 13 is provided from the substantially central part of the front side edge 11f of the cushion 10 toward the rear (upper right direction in the figure), and two such that it is perpendicular to the longitudinal cut 13 Lateral cuts 14, 14 are provided.

Between these vertical cuts 13 and the horizontal cuts 14, 14, female hooks 20 are provided at four locations, and male hooks 21 that are respectively locked or attached to these female hooks 20 are provided. It is provided at both ends of two strip members 15 as connecting and fixing members.
The longitudinal cuts 13 are closed by locking or engaging the male fastening hooks 21 at both ends of the two belt-like members 15 and 15 to the female fastening hook 20.

  When the cushion 10 is attached to the body holding member disposed on the infant's crotch, the body holding member is inserted from the longitudinal cut 13 of the cushion 10 to the desired lateral cut 14 and then connected and fixed. The belt-like members 15 and 15 as members are fixed to both sides of the longitudinal cut 13 and the longitudinal cut 13 is closed.

FIG. 3 is a cross-sectional explanatory view showing a transverse cross section of the cushion according to the embodiment.
As shown in this cross-sectional explanatory view, the layers that constitute the constituent members may be arranged in close contact with each other and may be bonded to each other using an adhesive.
In this figure, the uppermost side is the front surface side 11 of the cushion 10, and the lowermost side is the back surface side 12 of the cushion 10. These are made of PVC leather as described above.

Disposed in the middle portion is urethane foam 16 from above and has a thickness of about 7 mm.
The layer below it shows the gel layer 17, and its thickness is about 7 mm as well.
The lower layer is a core material 18 made of synthetic resin, and the thickness is about 8 mm.
Under that, a PVC transparent film 19 having a thickness of about 0.4 mm is disposed above the back surface 12.

The transparent film 19 is disposed in consideration of good adhesion between the back surface 12 and the core material 18.
With the above configuration, that is, by providing the core material 18 under the gel layer 17, the cushioning property is more effectively exhibited, and the surface side 11 is configured to rise well upward, and the cushioning property is improved. It appeals that it has excellent elasticity.

Moreover, the outer peripheral part of the surface side 11 and the back surface side 12 is formed so that a gel may not leak outside from the internal gel layer 17 by performing high frequency welding mutually.
Moreover, the above-mentioned each layer is not arrange | positioned inside the part where the vertical direction cut | interruption 13 and the horizontal direction cut | interruptions 14 and 14 are provided and the strip | belt-shaped members 15 and 15 are fixed.

FIG. 4 is an explanatory diagram illustrating a state in which the cushion according to the embodiment is mounted on a child seat fixed to a bicycle.
The child seat 30 is fixed to the rear loading platform of the bicycle, and includes a seat surface 31, a handle portion 32 provided in an inverted U shape in front of the seat surface 31, and footrest portions provided on both sides of the seat surface 31. 33, a backrest portion 34 behind the seat surface 31, a side protection portion 35 that protects the body side portion of an infant seated on both sides of the backrest portion 34, and a headrest 36 that can slide up and down from the backrest portion 34. .

The child seat 30 is equipped with a five-point supported seat belt 37 as a body holding member.
Among the seat belts 37, the cushion 10 according to the above embodiment is attached to a seat belt (body holding member) 37c disposed in the crotch portion of a seated infant.

One end of the body holding member 37c is fixed to the front central portion of the seat surface 31 and extends upward, and a connecting member that can be connected to another seat belt 37 is provided at the other end. Is.
The body holding member 37c is formed of a wide belt-like belt made of woven fabric. However, as another form, there is also a resin-made one made of a belt-like or rod-like material that is flexible and can stand on its own. .

The body holding member 37c having such a configuration is inserted from the longitudinal cut provided in the substantially central portion of the front side edge portion 11f of the cushion 10 to the horizontal cut, and then the connecting and fixing member is fixed. And the cushion 10 can be attached and fixed to the body holding member 37c.
Accordingly, when the infant is lowered from the child seat, the cushion 10 according to the present invention is prevented from being displaced on the seat surface 31 of the child seat or falling from the seat surface 31 to the ground.

Although one embodiment of the present invention has been described above, various design changes can be made as follows.
The shape and size of the cushion in plan view can be appropriately designed so as to fit the seat surface of the child seat.
The types and thicknesses of various cushion materials disposed inside the cushion can also be set as appropriate.
Various cushion materials may be laminated, and different cushion materials may be disposed at different sites.

In the above embodiment, because the gel is filled inside, the front surface side and the back surface side and the peripheral portions of each layer are joined by high frequency welding so that the gel does not leak to the outside.
The length of the longitudinal cut provided from the approximate center of the front side edge of the cushion and the transverse cut substantially perpendicular thereto can also be set as appropriate, and the number of transverse cuts may be one or three or more. .

  The longitudinal cut is provided from the substantially central portion of the front edge of the cushion toward the rear, and one or more transverse cuts are provided in a direction substantially perpendicular to the longitudinal cut. As in the above-described embodiment, it is also possible to provide not at the substantially central portion of the horizontal cut, but at the left or right end portion side of the horizontal cut.

In the above embodiment, the connecting and fixing member that closes the longitudinal cut is provided with locking portions at both ends of the belt-like member, and is provided with locking receiving portions on both sides of the vertical cut to lock both. The locking portion and the locking receiving portion may have other forms.
For example, as another example, a hook-and-loop fastener may be used, and a button and a button hole may be used as long as they can be locked or engaged with each other.

Further, any one of the locking portion and the locking receiving portion may be provided on the connecting and fixing member, and the other may be provided on both sides of the longitudinal cut, and may be provided opposite to each other.
Furthermore, this connection fixing member can also be implemented as one end portion fixed or fixed in advance to one side of the longitudinal cut.
By setting it as such a form, loss of a connection fixing member can be prevented.

  As described above, in the present invention, the body holding member provided at the front center portion of the seat surface of the child seat can be inserted and attached to the insertion portion provided at the approximate center of the front side of the cushion, whereby the cushion can be attached to the seat surface of the seat. We were able to provide something that would not slip or fall off the seat.

DESCRIPTION OF SYMBOLS 10 Cushion 11 Front side 11f Front side edge 12 Back side 13 Longitudinal cut 14 Lateral cut 15 Band-shaped member (connection fixing member)
16 Urethane foam 17 Gel 18 Core material 19 PVC film 20 Female hook hook 21 Male hook 30 Child seat 37, 37c Body holding member (seat belt)

Claims (3)

In the cushion placed on the seat surface of the child seat attached to the bicycle,
Two or more insertion parts are held at different positions from the front side edge of the cushion at the position of the cushion corresponding to the body holding member provided at the front center part of the child seat seat surface and disposed on the crotch of the infant. Line up
The body holding member can be inserted and attached to these insertion parts,
The insertion portion is composed of a transverse cut having an appropriate width substantially parallel to the front side edge of the cushion, and a longitudinal cut is provided from the front side edge of the cushion toward the cut,
Thereby, the body holding member disposed on the crotch portion of the infant is inserted from the vertical cut to the horizontal cut,
Furthermore, the longitudinal cut is closed by fixing the connecting and fixing member disposed so as to straddle the longitudinal cut between the transverse cut and between the lateral cut and the front edge of the cushion. ,
A bicycle child seat cushion, wherein one end of the connecting and fixing member is fixed to one side of the longitudinal cut and the other end can be locked and detached to the other side of the longitudinal cut. . The connecting and fixing member is formed of a band-shaped member, provided with locking portions at both ends of the band-shaped member, and provided with locking receiving portions on both sides of the longitudinal cut corresponding to the locking portions. longitudinal cuts is closed by engaging the lock receiving portion another, claim 1, characterized in that the engagement of both is canceled by disengaging the other the locking portion and the lock receiving portion The bicycle child seat cushion described in 1. The insertion portion of the gel disposed in the cushion inside other than the portion provided with, and the lower surface of the gel to claim 1 or 2, characterized in that arranged the core material of a hard cushion substantially the same outer shape A bicycle child seat cushion as described.