JP3162967U - Auxiliary chair - Google Patents

Abstract

Provided is a front seat auxiliary chair that can withstand use of a seated person in the lateral direction and that can be folded compactly. A seat plate 2 on which a person's buttocks can be placed, a pair of leg members 3 supporting the seat plate 2, and a pair of upper ends of each leg member 3 and a lower surface of the seat plate 2 are connected. A hinge mechanism 4, and the pair of hinge mechanisms 4 fold the pair of leg members 3 in a vertical position with respect to the lower surface of the seat plate 2 and a direction parallel to the lower surface of the seat plate 2. A holding member 5 configured to be rotatable between the folding position and holding the pair of leg members 3 in the standing position is detachably provided on the leg members 3. [Selection] Figure 1

Description

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

  As this type of conventional straight seat auxiliary chair, there is one proposed in Patent Document 1, for example.

JP 2001-224440 A

  As shown in FIG. 8, the front seat auxiliary chair 101 according to Patent Document 1 is a box-like flat member 103, 103 connected by a hinge 102 so as to be opened and closed, and is seated on the flat member 103, 103. It is comprised including the leg parts 104 and 104 which were attached mutually independently so that rotation in the horizontal direction of a person is possible. In addition, what is shown by the symbol H in FIG. 8 is a seated person's buttocks, and what is shown by the symbol F is a seated person's leg.

When using the seated auxiliary chair 101, the flat member 103 is opened and leveled, and the leg 104 is opened in an eight-letter shape. The two legs 104 independently support the weight of the seated person.
Further, when the front seat auxiliary chair 101 is not used, as shown by a two-dot chain line in the figure, the leg 104 is folded to lie on the back side of the flat member 103, and the flat member 103 is folded and closed. By closing the two flat members 103, the folded legs 104 can be accommodated therein.

  However, in this front seat auxiliary chair 101, since the two leg portions 104 spread in an eight-shape in use independently support the weight of the seated person, when the seated person moves the weight in the lateral direction, There is a problem that the portion 104 may close unexpectedly and lose balance.

  The present invention has been made in view of the above-described problems, and it is an object of the present invention to provide a seated auxiliary chair that can withstand use of a seated person with lateral weight movement and can be folded compactly. Is.

In order to achieve the above object, a seated auxiliary chair according to the present invention comprises:
A seat plate on which a person's buttocks can be placed; a pair of leg members that support the seat plate; and a pair of hinge mechanisms that connect the upper end of each leg member and the lower surface of the seat plate;
Between the standing position where the pair of leg members are erected in a direction perpendicular to the lower surface of the seat plate by the pair of hinge mechanisms and the folding position where the pair of leg members are folded in a direction parallel to the lower surface of the seat plate. It is configured to be rotatable,
A holding member for holding the pair of leg members in an upright position is detachably provided on the leg members (first device).

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

  The seat plate is configured by laminating an upper surface plate and a lower surface plate, the upper surface plate and the lower surface plate can be separated, and a height adjusting plate is provided between the upper surface plate and the lower surface plate. Is preferably detachable (third device).

  According to the first device, since the holding member that holds the leg member in the standing position is provided, the leg member can be firmly held in the standing position even if the seat occupant moves the weight in the lateral direction. A seated person can be supported stably. In addition, the leg member can be rotated between the standing position and the folding position, and the holding member can be attached to and detached from the leg member, so that the holding member is removed from the leg member and the leg member is folded. By rotating the seat to the position, the front seat auxiliary chair can be folded compactly. In this way, it is possible to obtain a front-seat auxiliary chair that can withstand use accompanying a weight shift in the lateral direction of the seated person and that can be folded compactly.

  By adopting the configuration of the second device, the holding member can be securely held in the standing position of the leg member and the leg member can be held in the folded position of the leg member, and the holding member can be detached when seated or when the leg member is carried. It is possible to reliably prevent the member from opening.

  By adopting the configuration of the third device, the height at the time of use of the seat plate can be adjusted by the height adjusting plate according to the physique of the seated person, and the convenience is further improved.

The perspective view of the whole seat auxiliary chair concerning one embodiment of the present invention. Front view of a seated auxiliary chair according to the present embodiment FIG. 5B is a right side view of the front seat auxiliary chair according to the present embodiment, a state diagram with the holding member attached (a) and a state diagram with the 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 Folding / unfolding operation explanatory view of the seated auxiliary chair according to the present embodiment (1) Folding / unfolding operation explanatory diagram of the seated auxiliary chair according to the present embodiment (2) Folding / unfolding operation explanatory diagram of the seated auxiliary chair according to the present embodiment (3) Explanatory drawing of a conventional sitting chair

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

  As shown in FIG. 1, a seated auxiliary chair 1 according to this embodiment includes a seat plate 2 on which a person's buttocks can be placed, a pair of leg members 3 and 3 that support the seat plate 2, and each leg member. 3 is provided with a pair of hinge mechanisms 4, 4 that connect the upper end of 3 and the lower surface of the seat plate 2, and a holding member 5 that holds the pair of leg members 3, 3 in an upright position.

  As shown in FIGS. 2 and 3, the seat plate 2 includes an upper surface plate 6 and a lower surface plate 7. The upper surface plate 6 is configured by attaching a cushion material 9 rich in elasticity to the upper surface of the substrate 8. The upper surface plate 6 has a rectangular shape in which the dimension in the depth direction (front and rear direction of the seated person) is shorter than the dimension in the lateral direction (left and right direction of the seated person), and is formed to have a size on which a human buttock H can be placed. Has been. The upper surface plate 6 is preferably covered with a cover such as synthetic leather or commercially available cloth. The cover should have a brilliant color pattern or a Japanese-style color pattern suitable for a ceremonial occasion. On the other hand, the lower surface plate 7 is formed by laminating two plates, is formed in a similar shape obtained by reducing the upper surface plate 6 at a predetermined ratio, and is integrally coupled to the lower surface of the substrate 8 of the upper surface plate 6. Yes. In addition, the coupling | bonding system of the lower surface board 7 and the board | substrate 8 is mentioned later.

  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 half is slightly wider in the depth direction than the upper half. 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 sitting posture, the pressure on the calf and the foot F is reduced and there is no sense of incongruity as the sitting posture. Satisfactory height position. The predetermined height position can be adjusted by an adjustment plate 20 (see FIG. 6B) 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.

  The hinge mechanism 4 connects the position closer to the end than the lateral center of the seat plate 2 and the end (base end) of the leg member 3 on the non-grounding side. The hinge mechanism 4 includes a first attachment portion 4a made of a metal plate member fixed to the lower surface plate 7 with screws 10 (see FIG. 4B) and side surfaces of the base end portion of the leg member 3. A second mounting portion 4b made of a metal plate member fixed by a screw 11 (see FIG. 3), and a connecting portion 4c that joins the first mounting portion 4a and the second mounting portion 4b in a swingable manner. It is comprised by.

  A stopper 12 is joined to the lateral end of the lower surface plate 7 so as to be able to abut against the leg member 3 when the leg member 3 is rotated to the folding position (FIG. 4A). The stopper 12 is formed of a square plate-like chip having a flat surface that contacts the outer surface of the leg member 3. In addition, a magnet body 13 (see FIG. 4B) is embedded in the stopper 12, and a screw (magnetic body) 14 (see FIG. 3) is provided on the outer surface side of the leg member 3 corresponding to the magnet body 13. When the paired leg members 3 and 3 are in the folded position, the folded state of the leg member 3 is maintained by the magnetic force acting between the magnet body 13 and the magnetic body 14. It has become.

  The holding member 5 holds the leg member 3 in an upright position, and is detachably attached to the leg member 3 by an insertion / removal operation. As shown in FIG. 5B, the holding member 5 includes a holding member main body 5a and support arms 5b provided integrally on both sides of the holding member main body 5a. 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. In addition, an elliptical hole 5e into which a finger can be inserted is provided at the center of the holding member body 5a. By holding the holding member 5 by hooking a finger on the elliptical hole 5e, the holding member 5 can be easily inserted into and removed from the pair of leg members 3 and 3.

  The support arm 5b extends from the holding member main body 5a toward the lateral end of the lower surface plate 7 in a state where the holding member main body 5a is inserted into the respective slits 3a of the pair of leg members 3 and 3, and the front end surface thereof Is abutted against the lower surface of the lower surface plate 7. The outer edge of the support arm 5b is formed in a shape cut out in an arc shape so as to secure a wider space for incorporating the seated person's foot F between the seat plate 2 and the leg member 3. Further, the inner edge of the support arm 5b is formed in an arcuate shape so as to facilitate the insertion / removal operation of the holding member 5 with respect to the leg member 3 through the slit 3a of the leg member 3.

  Between the peak 5d of the holding member main body 5a and the base of the support arm 5b, a groove 5f 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 5 is inserted into the pair of leg members 3 and 3 and the front end surface of the support arm 5b is abutted against the lower surface of the lower surface plate 7, the rear surface of the slit 3a of the leg member 3 and the holding member A slight gap is provided between the inner surface of the five groove portions 5f. Thus, when the seated person sits on the seat plate 2, the load from the seat plate 2 is surely applied to the pair of support arms 5b and 5b together with the pair of leg members 3 and 3.

  As shown in FIGS. 4 and 5, a magnet body 15 is embedded in the lower surface plate 7, and a screw (magnetic body) 16 is embedded in the center of the peak portion 5 d of the holding member 5 corresponding to the magnet body 15. When the holding member 5 is inserted into the slits 3 a of the leg members 3 and 3 in the standing position, the holding member 5 is applied to the lower surface plate 7 by the magnetic force acting between the magnet body 15 and the magnetic body 16. It is designed to be held securely.

  Further, screws (magnetic bodies) 17 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. 7, the left and right leg members 3 in the folded position. , 3, when the holding member 5 is fitted, the magnetic body 17 is attracted to the magnet body 15 embedded in the lower surface plate 7. Thus, when carrying the orthopedic auxiliary chair 1 in a folded state, the overall shape can be made flat and not bulky.

  Components such as the substrate 8 and the lower surface plate 7, the leg member 3, and the holding member 5 of the upper surface plate 6 are made of materials such as wood and resin that can obtain relatively high rigidity and can be reduced in weight. It is preferable to configure. In addition, it is preferable that the components such as the cushion material 9 be made of a material such as a foaming resin that can obtain a relatively high elastic force and can be reduced in weight.

As shown in FIG. 6A, in the seat plate 2, the upper surface plate 6 and the lower surface plate 7 are combined in a separable manner. That is, a pair of positioning protrusions 18 are provided on the lower surface of the substrate 8 of the upper surface plate 6, and a pair of fitting holes 19 corresponding to the pair of protrusions 18 are provided on the lower surface plate 7. By fitting 18 into the fitting hole 19, the lower surface plate 7 is coupled to the upper surface plate 6.
On the other hand, when the seated auxiliary chair 1 is intended for a large physique (for example, a male), the adjustment plate 20 is placed between the upper surface plate 6 and the lower surface plate 7 as shown in FIG. To be inserted. The adjustment plate 20 is provided with a fitting hole 21 to be fitted to the protrusion 18 of the substrate 8 at a predetermined position on the upper surface, and a slightly large-diameter fitting formed on the lower surface plate 7 at a predetermined position on the lower surface. A protrusion 23 that fits into the hole 22 is provided. Note that it is preferable to prepare a plurality of adjusting plates 20 having different thicknesses.

  As a method of coupling the adjusting plate to the upper surface plate 6 and the lower surface plate 7, in addition to the method of coupling the protrusions and the fitting holes as described above, holes are formed in both plates and are inserted through these holes. For example, a method of embedding cork can be used.

Next, the folding operation | movement of the sitting seat auxiliary chair 1 which consists of the above-mentioned structure is demonstrated.
First, the holding member 5 inserted into the pair of leg members 3 and 3 in FIG. 2 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 magnetic member 17 is attracted to the magnet body 15 by fitting the extracted holding member 5 into the middle part of the left and right leg members 3, 3 in the folding position. In this way, as shown in FIG. 7, the front seat auxiliary chair 51 can be easily and compactly folded.

Next, the expansion | deployment operation | movement of the front seat auxiliary chair 1 is demonstrated.
First, in FIG. 7, after removing the holding member 5 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 stopped by the stopper 12. The leg member 3 is positioned at the upright position. Next, the holding member 5 is advanced in the direction of arrow B in FIG. 5, the holding member 5 is inserted through the respective slits 3a of the pair of leg members 3, 3, and the support arm 5b of the holding member 5 is inserted. The tip is brought into contact with the lower surface plate 7. In this way, as shown in FIG. 2, the pair of leg members 3 and 3 can be held upright and the seated auxiliary chair 1 can be easily deployed in a usable state.

  In the front seat auxiliary chair 1 of the present embodiment, since the holding member 5 that holds the leg member 3 in the standing position is provided, the leg member 3 is firmly held in the standing position even if the seated person moves weight in the lateral direction. Can be held in. Moreover, the front-seat auxiliary chair 1 can be easily folded or unfolded by the insertion / extraction operation of the holding member 5 with respect to the pair of leg members 3 and 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 the front seat assisting chair 1 that can withstand use accompanied by weight shift in the lateral direction of the seated person and is convenient to carry. In addition, since the holding member 5 functions also as a reinforcing member that supports the seat plate 2 in an auxiliary manner, the strength of the front seat auxiliary chair 1 can be increased and a relatively large load can be applied.

  In addition, according to the straight seat auxiliary chair 1 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. There is also an advantage that the height of the seat plate 2 can be adjusted by the height adjusting plate 20 according to the physique of the seated person.

  The seated auxiliary chair of the present invention has the characteristics that it can withstand use with the weight movement of the seated person in the lateral direction and can be folded compactly, so it can be used for ceremonial occasions and various meetings. It can be suitably used for a portable chair laid under the hips when sitting for a long time.

DESCRIPTION OF SYMBOLS 1 Front seat auxiliary chair 2 Seat plate 3 Leg member 4 Hinge mechanism 5 Holding member 6 Upper surface plate 7 Lower surface plate 8 Substrate 9 Cushion material 10, 11 Screw 12 Stopper 13, 15 Magnet body 14, 16, 17 Magnetic body 18, 23 Protrusion 19 , 21, 22 Fitting hole 20 Adjustment plate

Claims (3)

A seat plate on which a person's buttocks can be placed; a pair of leg members that support the seat plate; and a pair of hinge mechanisms that connect the upper end of each leg member and the lower surface of the seat plate;
Between the standing position where the pair of leg members are erected in a direction perpendicular to the lower surface of the seat plate by the pair of hinge mechanisms and the folding position where the pair of leg members are folded in a direction parallel to the lower surface of the seat plate. It is configured to be rotatable,
A seated auxiliary chair characterized in that a holding member for holding the pair of leg members in an upright position is detachably provided on the leg members.   The upper surface of the holding member in the standing position of the leg member and the lower surface of the seat plate opposite to the holding member are each embedded with a magnet and a magnetic body is embedded in the other, and the leg member is in the folded position. 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 leg member, and a magnetic body is embedded in the other.   The seat plate is configured by laminating an upper surface plate and a lower surface plate, and the upper surface plate and the lower surface plate can be separated, and a height adjusting plate is attached and detached between the upper surface plate and the lower surface plate. The sitting seat auxiliary chair according to claim 1 or 2, which is provided in a possible manner.

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