JP3177788U - Auxiliary chair - Google Patents

Abstract

Provided is a seated auxiliary chair that can ensure the stability of seating and the convenience of carrying, can satisfy predetermined assembly accuracy, and can be easily manufactured.
A front seat auxiliary chair (1a) comprising a seat plate (2) and a pair of leg members (3, 3) for supporting the seat plate (2), provided with protrusions on the upper surface of each leg member (3), and fitting with the protrusions. The fitting member is provided on the lower surface of the seat plate 2, and the holding member 4 for holding the pair of leg members 3, 3 assembled to the seat plate 2 by fitting these protrusions and the fitting port together. It shall be provided in the leg members 3 and 3 so that attachment or detachment is possible.
[Selection] Figure 1

Description

  The present invention relates to a sitting assistance chair that is placed under the buttocks to reduce numbness when sitting at a ceremonial occasion or various meetings.

  For example, Japanese Patent Application Laid-Open No. 2004-133867 proposes a conventional seated auxiliary chair.

Utility Model Registration No. 3162967

  The front seat auxiliary chair according to Patent Document 1 joins a seat plate on which a person's buttocks can be placed, a pair of leg members that support the seat plate, an upper end portion of each leg member and a lower surface of the seat plate. A pair of hinges, and with these hinges, between a standing position where the pair of leg members stand upright in a direction perpendicular to the lower surface of the seat plate and a folding position where the leg member is folded in a direction parallel to the lower surface of the seat plate And a holding member that holds the pair of leg members in an upright position is detachably provided on the leg members.

  According to this front seat auxiliary chair, since it can withstand use accompanying a weight shift in the lateral direction of the seated person and can be folded in a compact manner, the stability of the seating and the convenience of carrying can be ensured.

By the way, in the above-mentioned regular seat auxiliary chair, it is necessary to attach the pair of leg members to the seat plate with high accuracy in order to detachably attach the holding member to the pair of leg members.
However, when the pair of leg members is assembled to the seat plate, it is difficult to accurately position the pair of leg members with respect to the seat plate and join them together with a hinge. There is a problem that can not be.

  The present invention has been made in view of the above-described problems, and can ensure the stability of seating and the convenience of carrying, satisfy the predetermined assembly accuracy, and can be easily manufactured. It is an object of the present invention to provide a seated auxiliary chair that can be used.

In order to achieve the above object, a seated auxiliary chair according to the present invention comprises:
A front seat auxiliary chair comprising a seat plate on which a person's buttocks can be placed and a pair of leg members that support the seat plate,
Providing a protrusion on the upper surface of the leg member, and providing a fitting port for fitting with the protrusion on the lower surface of the seat plate,
A holding member that holds the leg member assembled to the seat plate by connecting the protrusion and the fitting port is detachably provided on the leg member.

  In the present invention, it is preferable that a magnet body is embedded in one of the upper surface of the leg member and a lower surface of the seat plate facing the upper surface, and a magnetic body is embedded in the other (second device).

  In the present invention, it is preferable that either one of the upper surface of the holding member and the lower surface of the seat plate opposed to the upper surface is embedded with a magnet body and the other with a magnetic body (third device).

In the front seat auxiliary chair of the present invention, a projection is provided on the upper surface of each of the pair of leg members, and a fitting port for fitting with the projection is provided on the lower surface of the seat plate, and the projection and the fitting port are fitted to each other. By doing so, the pair of leg members are assembled in a state where they are accurately positioned on the seat plate. Therefore, a predetermined assembling accuracy required for detachably providing the holding member with respect to the pair of leg members is satisfied, and a joining process using a conventional hinge is unnecessary, so that it can be easily manufactured.
Further, since the pair of leg members assembled to the seat plate are connected by the holding member, it is possible to withstand the use of the seat occupant with lateral weight movement and to ensure the stability of the seating.
Further, by disassembling the seat plate, the pair of leg members, and the holding member for each part, the seat plate can be compactly stored in a bag or the like, so that the convenience of carrying can be ensured.

  By adopting the configuration of the second device, when assembling, the leg member is attracted to the seat plate by the magnetic force acting between the magnet body and the magnetic body, so that the assembling work can be performed more easily. After assembly, the assembled state of the leg member with respect to the seat plate is reliably held by the same magnetic force, and it is possible to reliably prevent the leg member from coming off during carrying.

  By adopting the configuration of the third device, at the time of assembly, the holding member is sucked to the seat plate by the magnetic force acting between the magnet body and the magnetic body, so that the assembly work can be performed more easily After the assembly, the assembled state of the holding member with respect to the seat plate is reliably held by the same magnetic force, and the holding member can be reliably prevented from being detached during carrying.

The front view of the use condition of the front seat auxiliary chair with a chair height adjustment stand concerning one embodiment of the present invention Side view of a seated auxiliary chair with a chair height adjustment stand of this embodiment Front view (a) and bottom view (b) of seat plate Top view (a) and side view (b) of leg member Plan view (a), front view (b) and bottom view (c) of holding member Plan view of chair height adjustment table (a) and front view of disassembled state (b)

  Next, a specific embodiment of the seated auxiliary chair according to the present invention will be described with reference to the drawings.

<Overview of the sitting chair>
As shown in FIGS. 1 and 2, the seated auxiliary chair 1 with a chair height adjusting table according to the present embodiment is equipped with a chair height adjusting table 1 b for adjusting the chair height to the seated auxiliary chair 1 a. Has been configured.
The front seat auxiliary chair 1a includes a seat plate 2 on which a person's buttocks H can be placed, and a pair of legs arranged at a predetermined interval in the lateral direction X of the seat plate 2 to support the seat plate 2. The members 3 and 3 and the holding member 4 that holds the leg members 3 and 3 so as to be connected are provided.

<Description of seat plate>
As shown in FIGS. 3A and 3B, the seat plate 2 is configured by attaching a cushion material 6 rich in elasticity on the upper surface of the substrate 5, and in the lateral direction X (the left and right direction of the seated person). It has a substantially rectangular shape with a short dimension in the depth direction Y (the front-rear direction of the seated person) with respect to the dimension, and is sized so that a person's buttocks H can be placed thereon. The cushion material 6 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>
As shown in FIGS. 4A and 4B, the leg member 3 is composed of a plate-like member whose upper part is slightly wider in the depth direction Y than the lower part. The leg length of the leg member 3 is determined so that the seat plate 2 is arranged at a predetermined height when the leg member 3 is assembled to the seat plate 2. Here, as shown in FIG. 1, the predetermined height position means that even if the seated person takes a sitting posture with the buttocks H placed on the seat plate 2, the pressure on the calf and the foot F is reduced, and the sitting position It is a height position that satisfies the condition that there is no sense of incongruity as a posture. The predetermined height position can be adjusted by the chair height adjustment stand 1b.
Further, as shown in FIG. 4B, the leg member 3 is formed with a slit 3a having a required width. The slit 3 a is formed from an intermediate position in the leg length direction of the leg member 3 to an end position (tip position) on the ground contact side at an intermediate position in the depth direction Y of the leg member 3.

<Explanation of the projection of the leg member and the fitting opening of the seat plate>
As shown in FIG. 4B, a pair of protrusions 7 are provided on the upper surface of each leg member 3 with a predetermined interval in the depth direction Y. Further, as shown in FIG. 3B, fitting ports 8, 8 that are fitted to the protrusions 7, 7 are provided on the lower surface of the substrate 5. The leg member 3 is assembled in a state in which the leg member 3 is accurately positioned on the seat plate 2 by fitting the projections 7 and 7 with the fitting ports 8 and 8.

<Description of holding member>
As shown in FIG. 1, the holding member 4 serves to reinforce by connecting and holding a pair of leg members 3, 3, and includes a slit 3 a provided in each leg member 3 (FIG. 4 ( It is detachably mounted by the insertion / removal operation with respect to b).

As shown in FIG. 5B, the holding member 4 includes a holding member main body 4a and extending arms 4b provided integrally on both sides of the holding member main body 4a.
The holding member body 4a fits snugly between the base portion 4c having a grounding surface and forming the base of the holding member body 4a, and the pair of leg members 3 and 3 assembled to the seat plate 2. It has a peak portion 4d to be inserted, and is formed in a shape and size that can be inserted into and removed from each slit 3a of the pair of leg members 3 and 3. The holding member main body 4a is provided with a round hole 4e and a rounded rectangular hole 4e 'into which fingers can be inserted. By operating the holding member 4 by hooking a finger on the round hole 4e or the rounded rectangular hole 4e ′, the holding member 4 can be easily inserted into and removed from the pair of leg members 3 and 3.

  The overhanging arm 4b has a pair of legs extending from the holding member body 4a toward the end in the lateral direction X of the substrate 5 in a state where the holding member body 4a is inserted into the respective slits 3a of the pair of leg members 3 and 3. It extends so as to project outside the members 3 and 3, and its front end surface is abutted against the lower surface of the substrate 5. The outer edge of the overhanging arm 4b has a shape cut out in an arc shape so as to secure a wider space for incorporating the seated person's foot F (see FIG. 1) between the seat plate 2 and the leg member 3. Is formed.

Between the base part of the overhanging arm 4b and the peak part 4d of the holding member body 4a, a groove part 4f into which the inner part of the slit 3a of the leg member 3 is fitted is formed.
In the state where the holding member 4 is inserted into the pair of leg members 3 and 3 and the distal end surface of the overhanging arm 4b is abutted against the lower surface of the substrate 5, the rear surface of the slit 3a of the leg member 3 and the holding member A slight gap is provided between the back surface of the four groove portions 4f. Thus, when the seated person sits on the seat plate 2, the load from the seat plate 2 acts on the pair of extending arms 4b, 4b together with the pair of leg members 3, 3.

  As shown in FIG. 5 (c), a pair of fitting ports 9, 9 are provided on the lower surface of the base portion 4c with a predetermined interval in the lateral direction X.

<Description of protrusion of holding member and fitting port of seat plate>
As shown in FIG. 5B, a protrusion 10 is projected from the upper surface of the peak portion 4d of the holding member main body 4a at an intermediate position in the lateral direction X. Further, as shown in FIG. 3B, a fitting port 11 for fitting with the protrusion 10 is provided on the lower surface of the substrate 5. The holding member 4 is assembled in a state where it is accurately positioned on the seat plate 2 by fitting the protrusions 10 and the fitting ports 11.

<Description of chair height adjustment table>
As shown in FIG. 6 (a), the chair height adjusting base 1b has a H-shaped base 15 in plan view that is laid in contact with the lower surfaces of the pair of leg members 3, 3 and the holding member 4. I have.
As shown in FIG. 6B, the pedestal 15 includes an upper divided pedestal 15a and a lower divided pedestal 15b that can be divided in the vertical direction.

A pair of projections 16, 16 that fit into a pair of fitting ports 9, 9 provided on the lower surface of the base portion 4 c of the holding member 4 are provided on the upper divided base 15 a so as to protrude from the upper surface.
The upper split base 15a is provided with a pair of fitting ports 17 and 17 penetrating the upper and lower surfaces thereof with a predetermined interval in the lateral direction X.
On the lower divided base 15b, a pair of protrusions 18 and 18 are provided so as to protrude from the upper surface of the lower divided base 15b.

  By fitting the pair of protrusions 18 and 18 provided on the lower divided base 15b into the pair of fitting ports 17 and 17 provided on the upper divided base 15a, the divided bases 15a and 15b are accurately connected to each other. The chair height adjusting table 1b is assembled by combining the components in the positioned state. In the chair height adjusting table 1b, by fitting the pair of protrusions 16 and 16 provided on the upper divided base 15a to the pair of fitting ports 9 and 9 provided on the base portion 4c of the holding member 4, The chair height adjusting table 1b is assembled to the front seat auxiliary chair 1a in a state where it is accurately positioned.

<Description of magnet body and magnetic body>
As shown in FIGS. 4A and 4B, a magnetic body (such as a screw) 21 is embedded in the upper surface of the leg member 3 at an intermediate position in the depth direction Y, while facing the upper surface of the leg member 3. As shown in FIG. 3B, a magnet body 22 is embedded on the lower surface of the substrate 5 to correspond to the magnetic body 21.
Further, as shown in FIGS. 5A and 5B, a magnetic body 23 is embedded in the distal end surface of the overhanging arm 4b in the holding member 4, while facing the distal end surface of the overhanging arm 4b. As shown in FIG. 3B, a magnet body 24 is embedded on the lower surface of the substrate 5 so as to correspond to the magnetic body 23.
As shown in FIG. 4B, a magnetic body 25 is also embedded in the center position on the side surface of the leg member 3, and the magnet bodies 22 and 24 embedded in the lower surface of the substrate 5 are used. Due to the magnetic force acting between the magnet bodies 22, 24 and the magnetic body 25, the leg member 3 is attached to the seat plate 2 so as to be easily handled together when stored after disassembly.
Further, as shown in FIG. 5C, the magnet body 26 is embedded in the lower surface of the holding member 4 at an intermediate position in the lateral direction X, while the upper divided base facing the lower surface of the holding member 4. As shown in FIG. 6A, a magnetic body 27 is embedded on the upper surface of 15 a so as to correspond to the magnet body 26.
For example, the magnet bodies 22, 24, 26 and the magnetic bodies 21, 23, 25, and the like are embedded in such a manner that the magnet body 22 is embedded on the upper surface of the leg member 3 and the magnetic body 21 is embedded on the lower surface of the substrate 5. Regarding the embedding of 27, there may be an aspect in which the embedding target is replaced.

<Description of material of component parts>
Each component such as the leg member 3, the holding member 4, the substrate 5, and the divided bases 15 a and 15 b is made of a material such as wood or resin that can obtain relatively high rigidity and can be reduced in weight. It is preferable to do this. In addition, it is preferable that the component parts such as the cushion material 6 be made of a material such as foamed resin that can obtain a relatively high elastic force and can be reduced in weight.

<Description of effects>
According to the seated auxiliary chair 1 with the chair height adjustment stand configured as described above, the following operational effects can be obtained.
(1) Protrusions 7, 7; 7, 7 are provided on the upper surfaces of the pair of leg members 3, 3, and fitting ports 8, 8; 8, 8 are fitted to the protrusions 7, 7; Are provided on the lower surface of the substrate 5, and the pair of leg members 3, 3 are accurately positioned on the seat plate 2 by fitting the projections 7, 7; 7, 7 and the fitting ports 8, 8; Since the assembly is performed in a state where the holding member 4 is detachably provided with respect to the pair of leg members 3 and 3, a predetermined assembling accuracy is required and a joining process using a conventional hinge is unnecessary. It can be easily manufactured.
(2) Since the pair of leg members 3 and 3 assembled to the seat plate 2 are connected by the holding member 4, it can withstand use with a weight shift in the lateral direction of the seated person, and the stability of the seating can be improved. Can be secured. The holding member 4 is accurately positioned on the seat plate 2 by fitting the protrusion 10 provided on the upper surface of the peak portion 4d of the holding member main body 4a with the fitting port 11 provided on the lower surface of the substrate 5. It is assembled in the state.
(3) By disassembling the seat plate 2, the pair of leg members 3, 3 and the holding member 4 for each part, the seat plate 2 can be stored compactly and stored in a bag or the like, so that the convenience of carrying can be ensured. .
(4) When the leg member 3 and the holding member 4 are assembled to the seat plate 2, the leg member 3 and the holding member are attached to the seat plate 2 by the magnetic force acting between the magnet bodies 22, 24 and the magnetic bodies 21, 23. Since each 4 is sucked, the assembling work can be performed more easily, and after assembling, the assembled state of the leg member 3 and the holding member 4 with respect to the seat plate 2 is reliably held by the same magnetic force. Thus, it is possible to reliably prevent the leg member 3 and the holding member 4 from being detached during carrying.
(5) By fitting the protrusions 16 and 16 provided on the upper surface of the upper divided base 15a into the fitting ports 9 and 9 provided on the lower surface of the holding member 4, the chair height adjusting table 1b is The seat plate is accurately positioned with respect to the leg members 3 and 3 and the holding member 4 and is assembled in a state in which the backlash in the horizontal direction is suppressed, so that the seat plate can be adapted to the seated person's physique without impairing the seating stability. The height at the time of use of 2 can be adjusted.
(6) At the time of assembling the chair height adjusting table 1b to the holding member 4, the chair height adjusting table 1b is attracted to the holding member 4 by the magnetic force acting between the magnet body 26 and the magnetic body 27. The assembly work can be performed more easily, and after assembly, it is ensured that the assembly state of the chair height adjusting table 1b with respect to the holding member 4 is securely held by the same magnetic force and is detached during carrying. Can be prevented.
(7) Since the pedestal 15 in the chair height adjusting table 1b is constituted by the upper divided pedestal 15a and the lower divided pedestal 15b, the height when the seat plate 2 is used can be finely adjusted. In addition, by providing the fitting structure of the upper divided base 15a and the lower divided base 15b in multiple stages in the vertical direction, the height when the seat plate 2 is used can be adjusted to three or more stages. it can.

  The seated auxiliary chair of the present invention has the characteristics that it can ensure the stability of seating and the convenience of carrying, satisfy the specified assembly accuracy and can be easily manufactured. Therefore, it can be suitably used as a portable chair laid under the buttocks when sitting for a long time at a ceremonial occasion or at various meetings.

1 Seat Auxiliary Chair with Chair Height Adjustment Base 1a Seat Auxiliary Chair 1b Chair Height Adjustment Base 2 Seat Plate 3 Leg Member 4 Holding Member 7, 10, 16, 18 Projection 8, 9, 11, 17 Fitting Port 15 Base 15a, 15b Division base 21, 23, 25, 27 Magnetic body 22, 24, 26 Magnet body

Claims (3)

A front seat auxiliary chair comprising a seat plate on which a person's buttocks can be placed and a pair of leg members that support the seat plate,
Providing a protrusion on the upper surface of the leg member, and providing a fitting port for fitting with the protrusion on the lower surface of the seat plate,
A front-seat auxiliary chair characterized in that a holding member is provided on the leg member so as to be detachable so as to connect the leg member assembled to the seat plate by fitting the protrusion and the fitting port.   The front seat auxiliary chair according to claim 1, wherein a magnet body is embedded in one of the upper surface of the leg member and a lower surface of the seat plate facing the upper surface, and a magnetic body is embedded in the other. The front seat auxiliary chair according to claim 1 or 2, wherein a magnet body is embedded in one of the upper surface of the holding member and a lower surface of the seat plate facing the upper surface, and a magnetic body is embedded in the other.

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