JP3111097U - Bicycle auxiliary chair cushion - Google Patents

Abstract

An object of the present invention is to provide a special cushion for an auxiliary chair for a bicycle child, which can protect a user's knee back or thigh back.
A cushion 10 having a size substantially the same as or slightly smaller than a seat surface of a bicycle child auxiliary chair. The bulging portions 20 and 20 are formed on both side portions of the front end when the cushion is placed on the seat surface of the auxiliary chair. This bulge fits into the knee or thigh back of the user using the auxiliary chair. The planar view shape of the cushion is substantially a heart shape. The cushion is filled with low-resilience urethane foam. Both ends of the elastic member 25 for attaching to the auxiliary chair are sewn to both side edges of the cushion. 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. Furthermore, two string members for attachment are attached at appropriate positions on the side edge of the cushion.
[Selection] Figure 1

Description

  The present invention relates to a cushion used by being placed on a seat surface of a child auxiliary chair that can be fixedly attached to a rear loading platform or a handle of a bicycle.

There are two types of auxiliary chairs for children that can be fixed to a conventional bicycle: a type that is fixed to the rear seat and a type that is fixed to the handle.
FIG. 3 is an overall schematic view of an auxiliary chair of a type that can be fixed to the rear seat. This type of auxiliary chair 30 is made of a metal wire rod, and its seating surface 31 is fixed to the rear loading platform of the bicycle by bolts, nuts, and the like.
The auxiliary chair 30 has a backrest 32 that extends upward from the rear end of the seating surface 31 by an appropriate height, and a side part that stands up from both the left and right sides of the seating surface 31 and surrounds the user's sides. 33, 33, a front portion 34 standing upward from the front end of the seat surface 31, a grip 35 is provided at the upper end of the front portion 34, and a footrest extending downward at both front ends of the seat surface 31. The support portion 36 and a footrest portion 37 formed at the lower end of the footrest support portion 36 are configured.

Further, this type of auxiliary chair is provided with a seat member 40 that covers the backrest 32 and the surface of the seat surface 31. The seat member 40 is attached to the upper edge frame 32f of the backrest portion 32. The material of the seat member 40 is a cushion member such as urethane filled in a vinyl chloride sheet on the surface.
Although not shown, the auxiliary seat of the type fixed to the handle of the bicycle is substantially the same as the rear seat mounting type, but the means for attaching to the handle is provided at the front portion 34. ing. Moreover, although the said seat surface 31, the backrest part 32, and the side part 33 are normally formed from the integrally molded product made from a hard synthetic resin, it is formed from the metal filament material like the said auxiliary | assistant chair for fixing a rear cargo bed. There are also. Further, there are sheet members that are provided and those that are not provided.

In the above-described conventional child auxiliary chairs, the seat member is easily damaged in any of the auxiliary chairs for fixing the rear cargo bed or the auxiliary chairs for fixing the handle. It was usual to use an existing square cushion on a chair.
As described above, regarding the auxiliary chair that is attached and fixed to the bicycle, there is no dedicated seat cushion so far.

In the present invention, based on the above situation, an object of the present invention is to provide a dedicated cushion that is used by being placed on the seat surface of a child auxiliary chair for bicycles.
In the conventional auxiliary chair for children, the seat member is provided on the seat surface and the backrest portion. In use, the edge frame of the seat surface is provided on the back of the knee or the thigh of the user. There was a problem that the body hit and these parts became painful or cold.
Therefore, in the present invention, not only providing a dedicated cushion but also providing a dedicated cushion that does not hurt the user's knee back or thigh back or that is not cold.
Moreover, this cushion must be applicable not only to the auxiliary chair for the rear cargo bed but also to the auxiliary chair of the type that is fixed to the handle portion.

In order to solve the above-mentioned problem, the first one of the present invention is a cushion that can be placed on the seat surface of a child auxiliary chair that is attached and fixed to a bicycle, and the cushion is placed on the seat surface of the auxiliary chair. This is a cushion for an auxiliary chair for a bicycle that bulges both side portions of the front end and forms a bulging portion, and the bulging portion can protect the knee back or thigh back of a user who uses the auxiliary chair.
Here, the “front” side when the cushion is placed on the seat surface of the auxiliary chair means the “direction in which the handle is located” when the cushion is placed on the auxiliary chair.
According to a second aspect of the present invention, in the first aspect of the present invention, the shape of the cushion in plan view has a substantially heart shape, and the two curved bulging portions of the heart shape are the knee back portion or the thigh back portion of the user. It is a cushion for an auxiliary chair of a bicycle characterized by being able to protect the bicycle.

According to a third aspect of the present invention, there is provided a bicycle auxiliary chair cushion according to the first or second aspect, wherein the cushion is filled with a low-resilience urethane foam.
According to a fourth aspect of the present invention, in the above first to third aspects, a belt-like or string-like elastic member is used as an attachment member to the auxiliary chair, and both ends of the elastic member are used as both side edges of the cushion. By attaching, an insertion part is formed between the elastic member and the cushion, and the seat member of the auxiliary chair can be inserted into this insertion part, and the elastic member can be placed on either the back side or the front side of the cushion. A cushion for an auxiliary chair of a bicycle, characterized in that can also be arranged.
According to a fifth aspect of the present invention, there is provided a bicycle auxiliary chair cushion according to the fourth aspect of the present invention, wherein at least two attachment string-like members are further attached at appropriate positions on the side edges of the cushion. is there.

In the first one of the present invention, since it is a dedicated cushion for the auxiliary chair, it fits easily on the seat surface of the auxiliary chair, and on the seat surface as in the case of using a conventional existing cushion. It is not necessary to push in and place it forcibly.
Since both sides of the front end of the cushion are bulged to form a bulge, when a child sits using this cushion, the seat surface is placed on the back of the knee or the back of the thigh via the cushion. Therefore, the back of the knee or the back of the thigh does not come into contact with the frame of the frame on the seating surface, and pain and coldness are not felt.

In the second one of the present invention, it has a substantially heart shape in a plan view, and the two curved bulging portions in the heart shape can protect the knee back portion or thigh back portion of the auxiliary chair user.
In the third one of the present invention, the cushion is deformed so that it closely adheres to the shape of the user's body despite the fact that the cushion is filled with low-resilience urethane foam, even though there is sufficient resilience. , The back of the knee and the back of the thigh can be well protected.

In the fourth one of the present invention, since the expansion / contraction member for attachment to the auxiliary chair is provided in the cushion, the seat member provided in the auxiliary chair in the insertion portion between the expansion / contraction member and the cushion can be easily obtained. The cushion according to the present invention can be easily attached to the seat member of the auxiliary chair by being inserted, and it does not easily fall off the seat surface of the auxiliary chair.
In addition, since both ends of the elastic member are attached to both side edge portions of the cushion, the elastic member can be reversed and arranged on either the back side or the front side of the cushion. The side where the is not disposed can be the front side, and different colors or different patterns on the front and back surfaces can be used and enjoyed as two different types of cushions.

  In the fifth aspect of the present invention, since at least two attachment string members are attached at appropriate positions on the side edge of the cushion, the auxiliary chair is not provided with a seat member. Can also be attached to the frame. Alternatively, even in the type in which the seat member is provided, the cushion can be further attached and fixed to the frame body by these string-like members together with the elastic member, and the fixing can be surely performed.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a cushion according to an embodiment of the present invention, in which (A) is a front side perspective view and (B) is a back side perspective view. In FIG. 1A, the string-like member 26 is not shown.
The cushion 10 has a substantially heart shape in plan view. Therefore, the outer material 11 and the lining material 12 are both substantially heart-shaped and have the same shape, and are sewn at the entire periphery. A low-resilience urethane foam is filled between the outer material 11 and the lining material 12. The outer material 11 and the lining material 12 each have a three-layer structure in which neoprene rubber is interposed between the polyester fabric on the front surface and the back surface. Therefore, it is excellent in waterproofness and heat retention. Reference numeral 13 denotes a sewn portion, and the sewn portion 13 is located exactly in the middle of the side surface portion between the outer material 11 and the lining 12. The thickness of the cushion is about 30 mm.

What is necessary is just to form the magnitude | size of the whole cushion which has a heart shape substantially the same as the seat surface of an auxiliary chair, or slightly small. Therefore, it is only necessary to manufacture several sizes of sizes that are compatible with various types of seating surfaces of commercially available auxiliary chairs.
In the present invention, the two heart-shaped bulging portions 20 and 20 are portions adapted to the knee back or thigh back of the auxiliary chair user. When the cushion is placed on the rear loading platform auxiliary chair, the front frame that supports the holding portion of the auxiliary chair is located and fits in the hollow portion 15 between these two bulging portions 20 and 20. .

An elastic member 25 for attaching the cushion 10 to the seat member of the auxiliary chair is provided on the lining 12 side. The elastic member 25 is formed of a rubber band having a width of about 20 mm, and both end portions thereof are sewn to the sewn portion 13 located on the side surface portion.
Since the telescopic member 25 is telescopic, the cushion 10 is easily attached to the seat member of the auxiliary chair by expanding the telescopic member 25 and inserting the seat member of the auxiliary chair between the lining 12 and the telescopic member 25. be able to.

Moreover, since this expansion-contraction member 25 expands and contracts, it can be reversed and arrange | positioned so that this may be reversed to the surface material 11 side. Thereby, the lining side can be used as the front side.
In the present embodiment, the outer material 11 is red, the lining 12 is black, and the elastic member 25 is also black. The colors of the outer and lining are completely free, and it is also free to apply different patterns or different character designs on each side. Thereby, according to liking, it can be used by making a surface or lining into the upper surface side.

Further, in this embodiment, although not shown in FIG. 1 (A), as shown in FIG. 1 (B), a string of about 30 cm to 40 cm is attached to the sewn portion of the recessed portion 15 of the cushion 10. Two straps 26 as the shape members are sewn. These two straps 26, 26 can be tied to a frame such as a seating surface of an auxiliary chair. In the type in which the seat member is not provided on the auxiliary chair, the cushion can be attached to the auxiliary chair by the strap. Of course, also in the auxiliary chair provided with the seat member, the cushion is securely attached to the auxiliary chair by both the elastic member 25 and the strap 26, 26.
In this embodiment, the straps 26, 26 are both sewn together at the position of the recess 15 of the cushion, as in the above, like an apple clasp, as described above. It is also free to attach 26 to the sewn portions 13 on both side edges of the cushion 10.

FIG. 2 is a schematic view showing a state where the cushion according to the present invention is placed on the seat surface of the auxiliary chair.
The left side in the figure is the front side where the handle is located.
The part shown with the dashed-two dotted line has shown the seat surface 31 of the auxiliary chair of a loading platform fixed type, and 10 is the cushion of this invention. The hatched portion indicates the bulging portions 20 and 20.
In this schematic diagram, the user's foot portions, that is, the knee back portion or the thigh back portion are located at the front portions on both sides of the seat surface 31 of the rear cargo bed.
In the case of an auxiliary chair with a fixed loading platform, the user's foot is positioned at k in the figure because the user sits on the seating surface in such a state that the auxiliary chair is fixed over the loading platform. Will be. And the bulging part 20 of the cushion 10 corresponding to this k part will protect a user's knee back part or thigh back part.

On the other hand, in the case of an auxiliary chair with a fixed handle, although not shown in the figure, both feet of the user do not need to spread and straddle like an auxiliary chair with a fixed bed, so It will be in the state to face. That is, in the case of an auxiliary chair of the handle fixed type, the user's foot is positioned at a portion h in the figure. And the bulging part 20 of the cushion 10 corresponding to this part of h will protect a user's knee back part or thigh back part.
As described above, the cushion according to the present invention can be applied to any type of load chair fixing type auxiliary chair or handle fixing type auxiliary chair, and can be shared.

As mentioned above, although one Embodiment of this invention was described, a design change is possible as follows.
In the above embodiment, the shape of the cushion in a plan view is a substantially heart shape.
For example, it is possible to form bulges at both corners of the front end of a substantially rectangular shape.
The thickness can also be set freely.
The material is completely free, and in particular, low-resilience urethane foam is suitable as a cushioning material to be filled.

The color and pattern of the outer and lining can be set freely, but by making the two sides different, one can enjoy the color and pattern of the two cushions.
The reason why the elastic member for attaching to the auxiliary chair is also configured as in the above embodiment is that both sides of the cushion can be used, but the attachment member may be of any configuration, and the string member is simply attached to the cushion. It can also be carried out by sewing on both sides. Accordingly, the design of the mounting member can be changed freely.
Moreover, it is also possible to carry out by using another string member together with the elastic member. In this case, if the seat member is provided in the auxiliary chair, the elastic member can be easily attached to the seat member. In the case of an auxiliary chair of a type not provided with a seat member, it can be tied to the frame of the auxiliary chair by the string-like member. And the cushion of this invention can also be attached to an auxiliary chair more reliably and more firmly by both of these elastic members and a string-like member to an auxiliary chair provided with a seat member.

It is a perspective view of the cushion which concerns on embodiment of this invention, The (A) is a perspective view of the surface side, The (B) is a perspective view of the back side. It is a schematic diagram which shows the state which mounted the cushion which concerns on embodiment of this invention on the seat surface of an auxiliary chair. 1 is an overall schematic view of an auxiliary chair of a type that can be fixed to a rear seat of a bicycle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cushion 11 Outer material 12 Lining 20 Expansion part 25 Elastic member 26 Strap string (string-like member)

Claims (5)

  A cushion (10) that can be placed on the seat surface of a child auxiliary chair that is attached and fixed to a bicycle, and bulging out both sides of the front end when the cushion (10) is placed on the seat surface of the auxiliary chair. A cushion for a bicycle auxiliary chair that forms a bulging portion (20, 20) and that can protect the back of the knee or thigh of a user who uses the auxiliary chair.   The shape of the cushion (10) according to claim 1, wherein the cushion (10) has a substantially heart shape, and the two curved bulges (20, 20) of the heart shape can protect the knee back or thigh back of the user. Auxiliary chair cushion for bicycles.   The cushion for an auxiliary chair for a bicycle according to claim 1 or 2, wherein the cushion (10) is filled with low-resilience urethane foam.   4. A belt-like or string-like elastic member (25) is used as an attachment member to the auxiliary chair according to any one of claims 1 to 3, and both ends of the elastic member (25) are attached to both side edges of the cushion (10). By attaching, an insertion portion is formed between the elastic member (25) and the cushion (10), and the seat member of the auxiliary chair can be inserted into the insertion portion, and the elastic member (25) is cushioned (10 A cushion for an auxiliary chair of a bicycle, which can be disposed on either the back side or the front side.   5. A bicycle auxiliary chair cushion according to claim 4, wherein at least two attachment string members are further attached at appropriate positions on the side edge of the cushion (10).