JP3172093U - Chair height adjustment stand and seated auxiliary chair with chair height adjustment stand - Google Patents

Abstract

The present invention provides a chair height adjustment table and a seat auxiliary chair with a chair height adjustment table that can easily adjust the chair height without impairing the stability of seating and carrying convenience.
A pedestal 22 is provided in contact with the lower surfaces of the pair of leg members 3 and 3 and the holding member 5, and is sandwiched between the pair of leg members 3 and 3 on the upper surface of the pedestal 22. In addition, a pair of positioning members 23, 23 sandwiching the holding member 5 are provided, a pair of screws are embedded in the lower surface of the holding member 5, and a pair of magnet bodies 24, 24 corresponding to the pair of screws are provided on the upper surface of the base 22. Buried.
[Selection] Figure 6

Description

  The present invention is a chair height for adjusting the chair height of an auxiliary sitting chair that lays under the buttocks and reduces numbness when sitting for a long time at a ceremonial occasion or various meetings. The present invention relates to a seat-adjustable chair with a chair height adjustment table that can be adjusted by the height adjustment table and the chair height adjustment table.

  Conventionally, there has been proposed, for example, in Patent Document 1 as an auxiliary seat with adjustable chair height.

Utility Model Registration No. 3162967

  As shown in FIG. 9 (a), in the seated auxiliary chair 101 according to Patent Document 1, a seat plate on which a person's buttocks is placed is configured by laminating an upper surface plate 102 and a lower surface plate 103, and these upper surface plates. 102 and the lower surface plate 103 are detachably combined.

  That is, a pair of positioning protrusions 104 and 104 are provided on the lower surface of the upper surface plate 102, and a pair of fitting holes 105 and 105 corresponding to the pair of protrusions 104 and 104 are provided on the lower surface plate 103. Thus, the lower surface plate 103 is coupled to the upper surface plate 102 by fitting the protrusion 104 into the fitting hole 105.

  On the other hand, when it is desired to use the front seat auxiliary chair 1 for a large person (for example, a male), the adjustment plate 106 is placed between the upper surface plate 102 and the lower surface plate 103 as shown in FIG. To be inserted. The adjustment plate 106 is provided with a fitting hole 107 to be fitted to the protrusion 104 of the upper surface plate 102 at a predetermined position on the upper surface, and a slightly larger diameter fitting formed on the lower surface plate 103 at a predetermined position on the lower surface. Protrusions 109 that fit into the mating holes 108 are provided.

However, in the above-described front seat auxiliary chair 101, when the adjustment plate 106 is used, the separation operation of the upper surface plate 102 and the lower surface plate 103 is followed by the engagement operation of the protrusion 104 and the engagement hole 107, and the engagement of the protrusion 109. Since the fitting operation with the fitting hole 108 must be performed, it takes time and there is a problem that the chair height cannot be easily adjusted.
In addition, although loosening the fitting of the protrusions 104 and 109 and the fitting holes 107 and 108, the above-described fitting operation can be performed more easily, and the effort can be reduced. In this case, there is a problem that rattling among the upper surface plate 102, the adjustment plate 106, and the lower surface plate 103 is increased, and the seating stability is deteriorated. Moreover, since the upper surface plate 102, the adjustment plate 106, and the lower surface plate 103 are disassembled even by a slight impact, there is also a problem that it is inconvenient to carry the seated auxiliary chair 101.

  The present invention has been made in view of the above-described problems, and a chair height adjusting table and a chair that can easily adjust the chair height without impairing the stability of seating and the convenience of carrying. An object of the present invention is to provide a seated auxiliary chair with a height adjusting table.

In order to achieve the above object, the chair height adjusting table according to the present invention is:
A seat plate on which a person's buttocks can be placed; a pair of leg members that support the seat plate; a holding member that holds the leg members connected to each other; and a magnetic body embedded in the lower surface of the holding member or A chair height adjustment stand for adjusting the chair height of a front seat auxiliary chair provided with a magnet body,
A pedestal is provided in contact with the lower surfaces of the pair of leg members and the holding member, and a pair of positioning members sandwiched between the pair of leg members and sandwiching the holding member are provided on the upper surface of the pedestal. The magnet body or the magnetic body is embedded so as to correspond to the magnetic body or the magnet body (first device).

Next, the seated auxiliary chair with the chair height adjustment stand according to the present invention is
A seat plate on which a person's buttocks can be placed; a pair of leg members that support the seat plate; a holding member that holds the leg members connected to each other; and a magnetic body embedded in the lower surface of the holding member or A seated auxiliary chair with a chair height adjusting table, in which a chair height adjusting table for adjusting the chair height is attached to a seated auxiliary chair comprising a magnet body,
The chair height adjustment base is
A pedestal laid in contact with the lower surfaces of the pair of leg members and the holding member;
A pair of positioning members sandwiched between the pair of leg members and provided on the upper surface of the pedestal so as to sandwich the holding member;
A magnet body or a magnetic body embedded in the upper surface of the pedestal so as to correspond to the magnetic body or the magnet body is provided (second device).

  In the present invention, the backlash in the horizontal direction of the pedestal is suppressed by the pair of positioning members provided on the upper surface of the pedestal placed in contact with the lower surfaces of the pair of leg members and the holding member. Further, when the pair of positioning members is brought close to a position where the holding member is sandwiched between the pair of leg members, the pedestal is brought into close contact with the holding member by the magnetic force acting between the magnet body and the magnetic body, and the pedestal can be easily moved. Can be attached. If the pedestal is pulled away from the holding member with a force larger than the magnetic force, the pedestal can be easily removed. Therefore, the chair height can be easily adjusted without impairing the seating stability and the convenience of carrying.

The whole perspective view of the seat auxiliary chair with a chair height adjustment stand concerning one embodiment of the present invention Front view of a seated auxiliary chair with a chair height adjustment stand according to the present embodiment FIG. 3 is a side view of a seated auxiliary chair according to the present embodiment, a state diagram with a holding member attached (a) and a state diagram with a holding member removed (b). In the back view of the front seat auxiliary chair which concerns on this embodiment, the state figure (a) which removed the holding member in the folding position, and the state figure (b) which removed the holding member in the standing position The state figure which stored the holding member between a pair of leg members Overall perspective view (a), plan view (b), front view (c), and side view (d) of a chair height adjusting table according to this embodiment. Explanatory drawing of folding and unfolding operation of the seated auxiliary chair according to this embodiment Detachment operation explanatory drawing of the chair height adjustment stand according to the present embodiment Explanatory drawing of a conventional sitting chair

  Next, specific embodiments of a chair height adjusting table and a seated auxiliary chair with a chair height adjusting table according to the present invention will be described with reference to the drawings.

<Overview of the sitting chair>
As shown in FIG. 1, the seated auxiliary chair 1 with a chair height adjusting table of the present embodiment is configured by mounting a chair height adjusting table 21 for adjusting the chair height on the seated auxiliary chair 1 a. ing.
The front seat auxiliary chair 1a includes a seat plate 2 on which a person's buttocks H (see FIG. 2) can be placed, a pair of leg members 3 and 3 that support the seat plate 2, and an upper end portion and a seat of each leg member 3. A pair of hinge mechanisms 4, 4 for connecting the lower surface of the plate 2 and a holding member 5 for holding the pair of leg members 3, 3 in an upright position are provided.

<Description of seat plate>
As shown in FIG. 2, the seat plate 2 is configured by attaching a cushion material 7 rich in elasticity to the upper surface of the substrate 6, and in the depth direction (horizontal direction). The size of the seated person in the front-rear direction) is a short rectangle, and is sized so that a person's buttocks H can be placed thereon. The cushion material 7 is preferably covered with a cover such as a synthetic leather or a commercially available cloth. The cover should have a brilliant color pattern or a Japanese-style color pattern suitable for a ceremonial occasion.

<Description of leg members>
The leg members 3 support the seat plate 2 from below, and a pair of leg members 3 are arranged in the lateral direction of the seat plate 2. The leg member 3 is composed of a plate-like member whose lower end portion is slightly wider than the upper portion in the depth direction. The leg length of the leg member 3 is determined so that the seat plate 2 is placed at a predetermined height position when the leg member 3 is in an upright position described later. Here, the predetermined height position is a condition that even if the seated person puts the buttocks H on the seat plate 2 and takes a normal posture, the pressure on the calf and the foot F is reduced and there is no sense of incongruity as the normal posture. Satisfactory height position. The predetermined height position can be adjusted by a chair height adjustment base 21 (see FIG. 6) as will be described later.

  As shown in FIG. 3B, the leg member 3 is formed with a slit 3 a having a required width. The slit 3 a is formed from the intermediate position in the leg length direction of the leg member 3 to the end position (tip position) on the ground contact side in the intermediate part in the depth direction of the leg member 3.

<Description of hinge mechanism>
As shown in FIG. 2, the hinge mechanism 4 connects the position closer to the end than the center of the seat plate 2 in the lateral direction and the end (base end) of the leg member 3 on the non-ground side. A metal hinge is used. The hinge mechanism 4 includes a first attachment portion 4a made of a plate-like member fixed to the substrate 6 with screws 8 (see FIG. 4B), and screws 9 (see FIG. 3), the second mounting portion 4b made of a plate-like member, and the connecting portion 4c that joins the first mounting portion 4a and the second mounting portion 4b in a swingable manner.
In this way, the pair of leg members 3, 3 are perpendicular to the lower surface of the seat plate 2 by the pair of hinge mechanisms 4, 4 connecting the upper ends of the pair of leg members 3, 3 and the lower surface of the seat plate 2. It can be rotated between an upright position (see FIG. 4 b) that stands up in a direction and a folding position (see 4 (a)) that is folded in a direction parallel to the lower surface of the seat plate 2.
In the present embodiment, an example in which a metal hinge is used as the hinge mechanism 4 is shown, but the present invention is not limited to this. For example, the base plate 6 and the leg member 3 of the seat plate 2 are both made of resin, and a connecting portion having a pin insertion hole is integrally provided on the lower surface side of the base plate 6 by resin molding. A connecting portion having a pin insertion hole is integrally provided by resin molding, and the connecting portion of the substrate 6 and the connecting portion of the leg member 3 are connected by a pin, so that the hinge mechanism functionally the same as the hinge mechanism 4 is configured. You may make it do.

<Description of stopper for leg member>
A stopper 10 is joined to the lateral end of the substrate 6 so that the leg member 3 can be brought into contact with the leg member 3 when the leg member 3 is rotated to the folding position (see FIG. 4A). The stopper 10 is formed of a round or hexagonal plate-like magnetic body having a flat surface that contacts the outer surface of the leg member 3. A magnet body 11 (see FIG. 3b) is embedded on the outer surface side of the leg member 3 corresponding to the stopper 10 made of this plate-like magnetic body, and when the pair of leg members 3 and 3 are in the folding position, The folded state of the leg member 3 is maintained by the magnetic force acting between the stopper 10 and the magnet body 11.

<Description of holding member>
The holding member 5 connects the pair of leg members 3 and 3 and holds them in an upright position. The holding member 5 is detachably attached to each leg member 3 by an insertion / removal operation. As shown in FIG. 7, the holding member 5 includes a holding member main body 5 a and extending arms 5 b that are integrally provided on both sides of the holding member main body 5 a. The holding member 5 also functions as a reinforcing member that supports the seat plate 2 in an auxiliary manner.

  The holding member main body 5a includes a base portion 5c having a grounding surface and forming a base of the holding member main body 5a, and a mountain portion 5d that fits between the pair of leg members 3 and 3 in the standing position. And has a shape and dimension that can be inserted into and removed from the slits 3a of the pair of leg members 3 and 3, respectively. Further, a required elliptical hole 5e into which a finger can be inserted is provided at the center of the holding member main body 5a. By operating the holding member 5 by hooking fingers into these elliptical holes 5e, the holding member 5 can be easily inserted and removed from the pair of leg members 3 and 3.

  The overhanging arm 5b has a pair of leg members 3 from the holding member body 5a toward the lateral end of the substrate 6 in a state where the holding member body 5a is inserted into the respective slits 3a of the pair of leg members 3 and 3. , 3 are extended so as to project outside. A groove portion 5f into which the back portion of the slit 3a of the leg member 3 is fitted is formed between the base portion of the overhang arm 5b and the peak portion 5d of the holding member main body 5a.

  A magnet body 12 is embedded in the substrate 6, and a screw (magnetic body) 13 is embedded in the center of the peak portion 5 d of the holding member 5 corresponding to the magnet body 12, and the leg members 3, 3 in the standing position. When the holding member 5 is inserted into each of the slits 3 a, the holding member 5 is securely held on the substrate 6 by the magnetic force acting between the magnet body 12 and the screw 13.

  Screws (magnetic bodies) 14 are embedded in the central portion of the holding member main body 5a in the holding member 5 over the front and back surfaces, and as shown in FIG. 5, the left and right leg members 3, 3 in the folded position. When the holding member 5 is fitted into the intermediate portion, the screw 14 is attracted to the magnet body 12 embedded in the substrate 6. In this way, when carrying the orthopedic auxiliary chair 1a in a folded state, the overall shape can be made flat and not bulky.

<Description of material of component parts>
The component parts such as the leg member 3, the holding member 5, and the substrate 6 are preferably made of a material such as wood or resin that can obtain relatively high rigidity and can be reduced in weight. Moreover, it is preferable that the components such as the cushion material 7 are made of a material such as a foamed resin that can obtain a relatively high elastic force and can be reduced in weight.

<Description of chair height adjustment table>
As shown in FIG. 1, a chair height adjustment base 21 for adjusting the chair height is mounted on the lower surface side of the pair of leg members 3, 3 and the holding member 5. The chair height adjusting base 21 includes a base 22 having a letter H shape in a plan view, which is placed in contact with the lower surfaces of the pair of leg members 3 and 3 and the holding member 5.
6A to 6D, the upper surface of the base 22 is sandwiched between a pair of leg members 3 and 3 (see FIG. 6C) and the holding member 5 is sandwiched (see FIG. 6). 6 (b) and (d)) A pair of rectangular plate-like positioning members 23, 23 are fixed.
As shown in FIG. 7, a pair of screws (magnetic bodies) 15 and 15 are embedded on both sides of the lower surface (grounding surface) of the holding member 5 with a predetermined interval. A pair of magnet bodies 24, 24 are embedded in the upper surface of the base 22 so as to correspond to the pair of screws 15, 15. A pair of magnet bodies are embedded on both sides of the lower surface (grounding surface) of the holding member 5 with a predetermined interval, and a pair of screws (magnetic bodies) are formed on the upper surface of the base 22 so as to correspond to the pair of magnet bodies. ) May be embedded.

<Explanation of folding operation of auxiliary seat chair>
Next, the folding operation of the front seat auxiliary chair 1a having the above-described configuration will be described.
First, the holding member 5 inserted into the pair of leg members 3 and 3 in FIG. 8 is extracted in the direction of arrow A in FIG. Next, the leg member 3 in the standing position is turned around the connecting portion 4c toward the folding position, and the leg member 3 is placed on the seat plate 2 and positioned at the folding position. Further, the extracted holding member 5 is fitted into the middle part of the left and right leg members 3, 3 in the folding position, and the magnetic body 14 is attracted to the magnet body 12. Thus, as shown in FIG. 5, the front seat auxiliary chair 1 a can be easily and compactly folded.

<Explanation of unfolding operation of the sitting chair>
Next, the expansion | deployment operation | movement of the front seat auxiliary chair 1a is demonstrated.
First, in FIG. 5, after the holding member 5 is removed from the seat plate 2, the leg member 3 in the folding position is rotated around the connecting portion 4 c toward the standing position, and the base end surface of the leg member 3 is placed on the substrate 6. The leg member 3 is positioned at the upright position by abutting against the lower surface of the leg. Next, the holding member 5 is advanced in the direction of arrow B in FIG. 8, and the holding member 5 is inserted through the slits 3 a of the pair of leg members 3 and 3. In this way, the pair of leg members 3 and 3 can be held upright and can be easily deployed in a usable state.

<Description of attaching / detaching operation of the chair height adjusting table>
As shown in FIG. 2, in the state where the chair height adjustment base 21 is mounted on the lower surface side of the pair of leg members 3, 3 and the holding member 5, the pair of magnet bodies 24 in the direction of arrow A in FIG. 8. , 24 and the pair of screws 15, 15 can be easily removed by pulling the base 22 away from the holding member 5 with a force larger than the magnetic force acting between the pair of screws 15, 15.
On the contrary, in a state where the chair height adjustment base 21 is removed, the holding member 5 is moved between the pair of positioning members 23 and 23 in the direction of arrow B in FIG. When approaching the pinched position, the pedestal 22 is brought into close contact with the holding member 5 by the magnetic force acting between the pair of magnet bodies 24, 24 and the pair of screws 15, 15, and the chair height adjustment base 21 is easily attached. be able to.

<Description of effects>
In the straight seat auxiliary chair 1 with the chair height adjustment stand of the present embodiment, the chair height according to the height dimension of the pedestal 22 laid in contact with the lower surfaces of the pair of leg members 3, 3 and the holding member 5. Is adjusted. In addition, it is preferable to prepare a plurality of chair height adjustment bases 21 having different height dimensions of the base 22.
In the chair height adjustment base 21, a pair of positioning members 23, 23 sandwiched between the pair of leg members 3, 3 and sandwiching the holding member 5 are fixed on the upper surface of the base 22. By the positioning members 23, 23, the backlash in the horizontal direction of the chair height adjusting table 21 is suppressed. Further, when the pair of positioning members 23, 23 are brought close to a position where the holding member 5 is sandwiched between the pair of leg members 3, 3, the pair of magnet bodies 24, 24 embedded in the pedestal 22 and the holding member 5. The pedestal 22 is brought into close contact with the holding member 5 by the magnetic force acting between the pair of screws 15, 15 embedded therein, and the chair height adjusting table 21 can be easily attached. If the base 22 is pulled away from the holding member 5 with a force larger than the magnetic force, the chair height adjusting base 21 can be easily removed.
Therefore, the chair height can be easily adjusted without impairing the seating stability and the convenience of carrying.

  Moreover, in the front seat auxiliary chair 1a of this embodiment, since the holding member 5 which holds the leg member 3 in the standing position is provided, even if the seated person moves weight in the lateral direction, the leg member 3 is placed in the standing position. Can be held firmly. Further, the front seat auxiliary chair 1a can be easily folded or unfolded by the operation of inserting / removing the holding member 5 with respect to the pair of leg members 3, 3 and the rotation operation of the leg member 3 around the connecting portion 4c. it can. Moreover, the extracted holding member 5 can be stored between the left and right leg members 3 and 3 in a folded state. Therefore, it is possible to obtain a front seat auxiliary chair 1a that can withstand use accompanying a weight shift in the lateral direction of the seated person and that is convenient to carry. In addition, since the holding member 5 also functions as a reinforcing member that supports the seat plate 2 in an auxiliary manner, the strength of the front seat auxiliary chair 1a can be increased and a relatively large load can be applied.

  Further, according to the seated auxiliary chair 1a of the present embodiment, the holding member 5 is held in the standing position of the leg members 3, 3, and the leg members 3, 3 and the holding member 5 are held in the folded position of the leg members 3, 3. However, since the magnetic body provided on one side and the magnetic body provided on the other side are attracted to each other, they can be securely held, and the holding member 5 is detached when seated, or the leg member 3 when carried. It is possible to reliably prevent the occurrence of problems such as opening.

  The seated auxiliary chair with the chair height adjustment stand of the present invention can easily adjust the chair height without impairing the stability of the seating and the convenience of carrying, and it involves the lateral movement of the seated person. As a portable chair that lays under the buttocks when sitting for a long time at ceremonial occasions and various meetings, etc. because it has the characteristics of being durable and compactly foldable It can use suitably for the use of.

DESCRIPTION OF SYMBOLS 1 Seat-seat auxiliary chair with chair height adjustment stand 1a Seat-seat assist chair 2 Seat plate 3 Leg member 5 Holding member 11, 12, Magnet body 13, 14, 15 Screw (magnetic body)
21 Chair Height Adjustment Base 22 Base 23 Positioning Member 24 Magnet Body

Claims (2)

A seat plate on which a person's buttocks can be placed; a pair of leg members that support the seat plate; a holding member that holds the leg members connected to each other; and a magnetic body embedded in the lower surface of the holding member or A chair height adjustment stand for adjusting the chair height of a front seat auxiliary chair provided with a magnet body,
A pedestal is provided in contact with the lower surfaces of the pair of leg members and the holding member, and a pair of positioning members sandwiched between the pair of leg members and sandwiching the holding member are provided on the upper surface of the pedestal. A chair height adjusting table comprising a magnetic body or a magnetic body embedded so as to correspond to the magnetic body or the magnetic body. A seat plate on which a person's buttocks can be placed; a pair of leg members that support the seat plate; a holding member that holds the leg members connected to each other; and a magnetic body embedded in the lower surface of the holding member or A seated auxiliary chair with a chair height adjusting table, in which a chair height adjusting table for adjusting the chair height is attached to a seated auxiliary chair comprising a magnet body,
The chair height adjustment base is
A pedestal laid in contact with the lower surfaces of the pair of leg members and the holding member;
A pair of positioning members sandwiched between the pair of leg members and provided on the upper surface of the pedestal so as to sandwich the holding member;
A front seat auxiliary chair with a chair height adjusting table, comprising: a magnetic body or a magnetic body embedded in an upper surface of the pedestal so as to correspond to the magnetic body or the magnet body.

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