The disclosure relates to a ready-to-assemble chair (assembly chair) and, in further detail, relates to an assembly chair that can be widely and comfortably used by men and women of all ages, such as babies, infants, children, and adults.
Conventionally, there has been proposed an assembly chair as described above that includes a pair of frames, a plurality of coupling rods removably mounted between these pair of frames, a backrest plate and a seat plate removably installed between these pair of frames in a predetermined manner, and a safety member such as a fall prevention member and a topple prevention member (for example, see Japanese Laid-Open Patent Publication No. 2006-68498). As another assembly chair, there has been proposed an assembly chair that includes a pair of frames, a plurality of coupling rods and a frame body removably mounted between these pair of frames, a sheet removably installed to this frame body in a predetermined manner, and a safety member such as a fall prevention member and a topple prevention member (for example, see Japanese Laid-Open Patent Publication No. 2012-205616).
However, in the conventional assembly chair like Japanese Laid-Open Patent Publication No. 2006-68498, since the backrest plate and the seat plate are made of a hard material such as a wood and a plastic, the assembly chair is not suitable for babies who do not have sufficient control over their necks and waists. The assembly chair also has a problem that cannot be used as a rocking chair. Additionally, the conventional assembly chair like Japanese Laid-Open Patent Publication No. 2012-205616 is originally manufactured for babies and infants and therefore is not suitable for adults. Further, while the assembly chair is advantageous in application for a plurality of usages, the assembly chair has a problem that a plurality of sheets with different lengths need to be prepared according to the usage.
In contrast to the conventional assembly chairs like Japanese Laid-Open Patent Publication No. 2006-68498 and No. 2012-205616, there has been proposed an assembly chair that can be widely used for men and women of all ages such as babies, infants, children, and adults. Further, the length of the sheet of the assembly chair can be changed according to the usage. Therefore, it is only necessary to prepare one sheet (see International Publication No. 2015/015590).
However, to change the length of the sheet according to the usage, the conventional assembly chair like International Publication No. 2015/015590 requires the following work. Support rods are passed through tubular portions formed at end portions of the sheet. Other support rods are attached to these support rods, and in this state, the sheet is wound around outer peripheries of these support rods such that the two support rods are not displaced and moved. In such a state, both end portions of the two support rods are aligned and are fitted to depressed portions on a pair of frames. This work is truly bothered and therefore becomes a problem.
A problem to be solved by the disclosure is to provide an assembly chair that can be widely and comfortably used by men and women of all ages, such as babies, infants, children, and adults and the assembly chair for which it is only necessary to prepare one sheet. Further, the length of the sheet of the assembly chair can be changed in relationship with the usage by a simple work.
The disclosure to solve the problems is an assembly chair that includes a pair of frames, a plurality of coupling rods, a plurality of pairs of depressed portions, at least one support member, and a sheet. The pair of frames include respective linear side portions and curved side portions. The curved side portions are integrally disposed to extend from one end portions of the linear side portions. The plurality of coupling rods are removably mounted between the pair of frames. The plurality of pairs of depressed portions are disposed at opposed inner surfaces of the pair of frames. The at least one support member is removably mounted between the pair of frames with both end portions of the support member fitted to the depressed portions. The sheet is removably installed in a predetermined manner between the support member and the coupling rod or another support member between the pair of frames. At least at one end portion of the sheet, the sheet includes a plurality of insertion portions along a width direction of the sheet. A flat plate is passed through at least one of the insertion portions. The support member with a flat intermediate portion is passed through another one of the insertion portions. The sheet is wound around outer peripheries of the insertion portion through which the plate is passed and the insertion portion through which the support member is passed to adjust a length of the sheet. Both the end portions of the support member, in such a state, are fitted to the depressed portions on the frames for mounting.
The assembly chair according to the disclosure includes a pair of frames, a plurality of coupling rods, a plurality of pairs of depressed portions, at least one support member, and a sheet. The pair of frames include respective linear side portions and curved side portions. The curved side portions are integrally disposed to extend from one end portions of the linear side portions. The plurality of coupling rods are removably mounted between the pair of frames. The plurality of pairs of depressed portions are disposed at opposed inner surfaces of the pair of frames. The at least one support member is removably mounted between the pair of frames with both end portions of the support member fitted to the depressed portions. The sheet is removably installed in a predetermined manner between the support member and the coupling rod or another support member between the pair of frames. As details will be described later, the assembly chair according to the disclosure can be used, for example, as a usual chair when the linear side portions of the pair of frames are placed on the floor. Additionally, the assembly chair can be used, for example, as a rocking chair when the curved side portions of the pair of frames are placed on the floor.
At least at one end portion of the sheet, the plurality of insertion portions are formed along the width direction of the sheet. The flat plate is passed through at least one of the insertion portions. The support member with the flat intermediate portion is passed through another one of the insertion portions. The sheet is wound around the outer peripheries of the insertion portion through which the plate is passed and the insertion portion through which the support member is passed to adjust the length of the sheet. Both the end portions of the support member, in such a state, are fitted to the depressed portions on the frames for mounting.
The coupling rod can have any shape. For the coupling rod, usually a rod material with a circular, oval, or polygonal cross-sectional surface is used. Meanwhile, the plate has a flat shape, for example, a comparatively thin flat plate shape. The support member has the flat intermediate portion similar to the plate. For example, the support member is formed into a flat plate shape with intermediate portion narrowing down at one site or two sites, is thicker than the plate as a whole, and has both end portions with an oval or polygonal cross-sectional surface. The depressed portions disposed at the opposed inner surfaces of the pair of frames have a shape matching both the end portions of the support member and preferably a shape further matching the shape of both the end portions of the coupling rod. For example, with both the end portions of the support member having the oval cross-sectional surface, the depressed portions are also configured to have the oval cross-sectional surface so as to be fittable to both the end portions. With both the end portions of the support member having the polygonal cross-sectional surface, the depressed portions are also configured to have the polygonal cross-sectional surface so as to be fittable to both the end portions. Preferably, the relationship between the shape of both the end portions of the coupling rod and the shape of the depressed portions is similarly configured.
Both the end portions of the support member are fitted to the depressed portions and are screwed as necessary. Therefore, the length of the support member is slightly longer than the length of the sheet in the width direction. Similarly, the length of the coupling rod is slightly longer than the length of the sheet in the width direction. Meanwhile, the plate has the length equivalent to or slightly shorter than the length of the sheet in the width direction. Among the plurality of insertion portions formed along the width direction of the sheet at least at the one end portion of the sheet, the insertion portion through which the support member is passed has a tubular shape and the insertion portion through which the plate is passed has a tubular shape or a bag shape.
At the one end portion of the sheet, the plate is passed through at least the one insertion portion among the plurality of insertion portions formed along the width direction of the sheet. The support member is passed through another one insertion portion. The sheet is wound around the outer peripheries of the insertion portion through which the plate is passed and the insertion portion through which the support member is passed. In this state, both the end portions of the support member are fitted to the opposed depressed portions on the pair of frames. Then, the support member is fixed together with the plate. Similarly, at the other end portion of the sheet, both the end portions of the support member are fitted to the depressed portions for fixation or, alternatively, the coupling rod is passed through the insertion portion and both the end portions are fitted to the depressed portions for fixation at the other end portion of the sheet. Consequently, the length-adjusted sheet is fixed as well.
Even if a weight is applied to the sheet during the use of the sheet, the support members two in total or the one support member and the one coupling rod at both the end portions of the sheet are not moved from the pair of frames, and further, the sheet does not loosen. As details will be described later, to which positions on the frames of the depressed portions that the support member is fitted is selectable according to the usage such as the use as the usual chair for babies and infants, the use as the usual chair for adults, and further the use as the rocking chair for babies and infants. The number of the sheet may be one and further the length of the sheet can be easily adjusted. For the sheet, it can be made of a cloth, a net, or a similar material is available. It is also available for the sheet, for example, a sheet with a bag-shaped portion into which a self-supporting member such as a plate material and a cushion material is insertable at a part corresponding to the seated surface when the sheet is used as the chair.
The assembly chair according to the disclosure can be also configured as follows. The plurality of insertion portions are each formed along the width direction of the sheet at both end portions of the sheet. The flat plate is passed through at least one of the insertion portions. The support member with the flat intermediate portion is passed through another one of the insertion portions. The sheet is wound around the outer peripheries of the insertion portion through which the plate is passed and the insertion portion through which the support member is passed to adjust the length of the sheet. Both the end portions of the support member in such a state are fitted to the depressed portions of the pair of frames for mounting.
While it is only necessary that the number of insertion portions formed at the end portion of the sheet is plural, specifically two or more, three in total is preferable. In this case, the flat plates are passed through the insertion portions on both outer sides, the support member with the flat intermediate portion is passed through the insertion portion on the middle side, and the sheet is wound around the outer peripheries of the insertion portions through which the plates are passed and the insertion portion through which the support member is passed to adjust the length of the sheet. In such a state, both the end portions of the support member are fitted to the depressed portions on the pair of frames for mounting.
With the assembly chair according to the disclosure a crotch belt and thriller a shoulder belt are removably mounted to the sheet preferably. This reason is that, when a baby or an infant uses the assembly chair according to the disclosure, this configuration avoids a danger that the baby or the infant carelessly moves and falls off from the chair.
With the assembly chair according to the disclosure, stoppers for prevention of a topple in a front-rear direction are preferably disposed at the respective one end portions of the pair of frames where the curved side portions are integrally disposed to extend to the linear side portions. Additionally, stoppers for prevention of a topple in a right-left direction are removably mounted to the respective linear side portions of the pair of frames preferably. These stoppers ensure avoiding the chair in use to topple in the front-rear direction and the right-left direction. Similar to the support member and the coupling rod, both end portions of the footrest are removably mounted to the opposed inner surfaces of the curved side portions of the pair of frames. At this time, when the front surface portion of the footrest projects to the front surface side (the front side) with respect to the curved side portions, as details will be described later, the front surface portion of the footrest functions as the stopper for prevention of the topple in the case where the assembly chair according to the disclosure is used as the rocking chair.
Additionally, with the assembly chair according to the disclosure, the following is preferable. A pair of line grooves are disposed so as to be open at opposed inner surfaces of the curved side portions of the pair of frames. Frames disposed to extend from both end portions of a table are removably and slidably fitted to the pair of line grooves. This reason is that, this configuration is truly convenient for eating and drinking, especially eating and drinking by babies and infants.
Since the assembly chair according to the embodiment includes the backrest surface and the sheeted surface made of the sheet, usually the sheet made of the cloth and the net, the assembly chair can be used for babies who do not have sufficient control over their necks and waists and can also be used as the rocking chair. Further, only one sheet is necessary for forming the backrest surface and the sheeted surface, therefore, the length can be adjusted by the simple work. The assembly chair according to the embodiment can be widely and comfortably used by men and women of all ages, such as babies, infants, children, and adults.
Insertion portions 61 to 63 three in total are formed in parallel in a lateral direction along a width direction of the sheet 51 at one end portion (the upper end portion) of the sheet 51. The insertion portions 61 and 62 are formed into a bag shape, and the insertion portion 63 is formed into a tubular shape. Flat plates 41a and 41b are passed through the insertion portions 61 and 62 on both outer sides, and the support member 41 is passed through the insertion portion 63 on the middle side. At the one end portion of the sheet 51, the sheet 51 is wound around the outer peripheries of the insertion portions 61 and 62 through which the plates 41a and 41b are passed and the insertion portion 63 through which the support member 41 is passed to adjust the length of the sheet 51. In such a state, both end portions of the support member 41 are fitted to the depressed portions 31 and 31 on the pair of frames 11 and 12. Although the explanation is omitted, the other end portion (the lower end portion) of the sheet 51 also has the similar configuration.
In the assembly chair according to the disclosure illustrated in
In the actual procedure, for example, the screws 91 and 92 (note that the screw 92 is not illustrated, and the same applies to the following) in the coupling rod 23 are loosened to remove the support member 41 from the depressed portions 31, 31 . . . , and the end portion of the sheet 51 is wound around the outer peripheries of the insertion portion 63 through which the support member 41 is passed and the insertion portions 61 and 62 through which the plates 41a and 41b are passed in accordance with the above-described procedure for
It is explicitly stated that all features disclosed in the description and/or the claims are intended to be disclosed separately and independently from each other for the purpose of original disclosure as well as for the purpose of restricting the claimed invention independent of the composition of the features in the embodiments and/or the claims. It is explicitly stated that all value ranges or indications of groups of entities disclose every possible intermediate value or intermediate entity for the purpose of original disclosure as well as for the purpose of restricting the claimed invention, in particular as limits of value ranges.
This application is a Continuation of International Application No. PCT/JP2015/064984, filed on May 26, 2015, the disclosure of which is incorporated by reference herein in its entirety.
Number | Name | Date | Kind |
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2514524 | Steele | Jul 1950 | A |
5375869 | Hsiao | Dec 1994 | A |
20150289673 | Fine | Oct 2015 | A1 |
Number | Date | Country |
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09-065955 | Mar 1997 | JP |
2006-068498 | Mar 2006 | JP |
2007-330330 | Dec 2007 | JP |
2012-205616 | Oct 2012 | JP |
2015015590 | Feb 2015 | WO |
Entry |
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International Search Report and Written Opinion (Application No. PCT/JP2015/064984) dated Aug. 18, 2015. |
Number | Date | Country | |
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20180084913 A1 | Mar 2018 | US |
Number | Date | Country | |
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Parent | PCT/JP2015/064984 | May 2015 | US |
Child | 15819434 | US |