JPH0540758Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a chair whose seat height can be adjusted according to the growth of a person.

[Conventional technology]

2. Description of the Related Art Chairs that can adjust the seat height according to a child's growth have been known for a long time.

[Problem that the invention attempts to solve]

However, conventional chairs have the following problems.

Conventional chairs with adjustable seat positions have been designed primarily for infants and children who grow rapidly. Therefore, the seat surface area was small and the seat support structure was delicate, making it unsuitable for use by adults. Therefore, when purchasing a dining table set, children's chairs must be prepared separately from adult chairs, and conventional children's chairs have a short period of use and are uneconomical.

[Means for solving problems]

The present invention aims to solve the above-mentioned problems of the conventional technology. In addition, we have created a chair with an adjustable seat position that can be used consistently by everyone from infants to adults.

In other words, there are three or four legs, a plurality of horizontal members that span each of the two sets with a predetermined step difference formed by a combination of the legs, and a plurality of horizontal members that are removably attached to the horizontal members. The structure of the chair consists of two seat plates, one large and one small. Therefore, by selecting the shapes of the cross members and seat plate with different heights as necessary, the chair can be used by infants, young children, children, and adults. It also has a structure that allows it to be used for other purposes by combining multiple chairs.

〔Example〕

Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1a is a perspective view showing the frame of a chair.
Reference numbers 1, 2, 3, and 4 denote four legs that stand perpendicular to the seat. A cross member is placed between each pair of legs 1 and 2 and between each pair of legs 3 and 4. The cross members are provided in six stages from top to bottom at a specified interval, and are arranged opposite each other between the pair of legs 1 and 2 and the pair of legs 3 and 4. Reference number 5 denotes the top cross member, which also serves as an armrest. Reference numbers 6, 7, 8, 9, and 10 denote the following cross members from the top. Each cross member has a hole 11 on its upper surface for detachably engaging the seat panel. Reference number 12 denotes a cutout that connects the bottom cross members 10, 10 that are arranged opposite each other. Reference numbers 13 and 14 denote back panels that connect legs 1 and 3, and are cut to fit the shape of the back to form a backrest.

FIG. 1b is a diagram showing the shape of the seat plate. 15
is a small seat plate with a partially cut-out recess. The seat plate 15 is used as a feeding table for infants, a seat for infants and children, and the like. The external dimensions are such that it can be spanned over the upper surface of the horizontal member placed oppositely. 16 is a dowel provided near the bottom end of the seat plate 15 and a hole 11 on the top surface of the cross member.
removably engages with the seat plate to fix the seat plate. Reference numeral 17 denotes a large seat plate, which is rectangular and is used as a seat for adults and a floor for infants and children. The seat plate 17 also spans over the upper surface of the opposing cross member and is secured by a dowel.

FIG. 2 is a three-sided view of the chair frame and a plan view of the seat plate. An example of chair dimensions is shown. The unit is mm. The height of the top surface of the top horizontal member 5 (the dimension from the floor, the same applies hereafter) is 655, which is convenient because it can be stored under a commercially available table. Below, the top height of crosspiece 6 is 480, the top height of crosspiece 7 is 400, the top height of crosspiece 8 is 300, the top height of crosspiece 9 is 220, and crosspiece 10.
The top height of is 45. Appropriate dimensions are selected for each purpose. Also, as is clear from the plan view, the planar dimensions of the chair frame are square, 500 x 500, and there are no protrusions on the outside.
Multiple chairs can be freely arranged and combined in a field shape or in a row. Furthermore, the outer dimensions of the seat plate 17 are sufficiently large at 420 x 510 (effective seat surface: 420 x 460), so that it can withstand use by adults.

The chair according to the present invention has a mechanically strong frame and has a structure in which opposing cross members are connected by a seat plate, so it is robust enough to withstand use by adults.

Next, how to use the chair will be explained based on FIGS. 3 and 4.

Figure 3 shows the case where this chair is used as a feeding table for infants. A seat plate 15 having a concave portion is passed to the uppermost horizontal member. This will become the lunch table. Also, the rectangular seat plate 17 is passed to the horizontal member 6 one step below. This will be the seat. For infants, back board and seat board 15
Since it is placed in the area surrounded by the recess, there is no danger of it falling. Moreover, the school lunch table is at almost the same height as the adult dining table, making it convenient for children to eat together.

FIG. 4 shows the case where the chair is used as a chair for infants and children. A seat plate 15 having a concave portion is hung on the second horizontal member 6 from the top. This will be the seat. The seat has a recessed part that allows even small children to sit stably. The rectangular seat plate 17 is hung on the cross members 7 to 9 depending on the growth of the child. This will be the floor surface. The crosspiece 7 is suitable for children up to 1 year old, the crosspiece 8 is suitable for children between 2 and 5 years old, and the crosspiece 9 is suitable for children up to the lower grades of elementary school. For upper elementary school students, it is recommended to lower the seat plate 15 one step and hang it on the horizontal member 7, and to hang the seat plate 17 on the lowermost horizontal member 10. In any case, the upper body is above the dining table and the feet are on the floor or the seat plate 17, so a stable posture can be maintained.

[Effect of idea]

As described above, the present invention includes a large seat plate having approximately the same length as the horizontal member that connects the legs having a back plate and is installed at different levels in the vertical direction, and a small seat plate that is shorter than the horizontal member. By arranging the large seat plate on the top side and the small seat plate on the bottom side of the cross member, it can be used as a chair for adults, and the small seat plate can also be used as a footrest while sitting. By changing to another horizontal member in the vertical direction on which the large seat plate is placed, it is possible to match the sitting height of the person sitting.

In addition, if you place the small seat plate on the top and the large seat plate on the bottom, you can seat a child (especially a toddler) on the large seat plate and use the small seat plate as a table, and also allow the child to sit on the small seat plate and use the small seat plate as a table. If the large seat board is used as a footrest, the child can sit with his or her back fully resting on the backboard, which has the effect of allowing the child to sit with good posture.

[Brief explanation of the drawing]

Figure 1a is a perspective view of the chair frame, Figure 1b is a perspective view of the seat plate, Figure 2 is a three-sided view of the chair frame and a plan view of the seat plate, and Figure 3 is a perspective view of the chair with an infant feeding table. FIG. 4 is a perspective view of the infant dining chair. 1, 2, 3, 4...legs, 5, 6, 7, 8, 9,
10...Horizontal material, 11...Hole, 12...Nuki, 1
3, 14... Back plate, 15... Small seat plate having a recess, 16... Dowel, 17... Large rectangular seat plate.

Claims (1)

[Scope of utility model registration request] A back plate connecting the four legs, two of the four legs, and a predetermined space between the two legs to which the back plate is attached and the other two legs. a plurality of horizontal members that span across each other with a step difference, a seat plate that spans between the horizontal members and has a depth that is approximately the same as the length of the horizontal members, and a central portion that is formed to have a depth that is shorter than the length of the horizontal members. 1. A chair comprising: a seat plate extending over said horizontal rod;