JP2009297099A - Floor chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor chair provided with a reclining mechanism is excellent in operability of an operation part for operating the reclining mechanism, has no risk of being inadvertently operated, and is excellent in designability. <P>SOLUTION: The floor chair having a seat 1, backrest parts 2, armrest parts 3, and the reclining mechanism that can adjust the angles of the backrest part is provided with an operation part 5 right under each of the armrest parts for operating the reclining mechanism. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a floor chair having a reclining mechanism capable of changing the angle of a backrest portion, and more particularly to a floor chair excellent in operability of an operating portion for operating the reclining mechanism.

Conventionally, many floor chairs such as a seat chair and a high seat chair have a reclining mechanism that can change an angle of a backrest portion.
Many floor chairs equipped with such a reclining mechanism are configured to operate the reclining mechanism by operating a lever provided on the side of the seat (see, for example, Patent Document 1 below). .

  However, for a user who sits with his hand on the armrest, the lever provided on the side of the seat is in a position much lower than the hand. It was cumbersome to operate after checking the lever position. In particular, when the user sits with the backrest greatly lowered, the lever cannot be reached, and the user has to bother to wake up to operate the lever, which is very troublesome. It was.

Thus, the conventional floor chair with a reclining mechanism has a problem that the operability of the operation portion (lever) for operating the reclining mechanism is poor.
As a method for solving such a problem, for example, a method of lengthening the lever can be considered.
However, if the lever is lengthened, there is a high risk that the user's hand will accidentally touch the lever, or the foot of a person passing nearby will hit the lever. Moreover, since the lever becomes very conspicuous in appearance, there is a problem that the design is greatly impaired.

JP 2001-161480 A

  The present invention has been made to solve the above-described problems of the prior art, and in a floor chair provided with a reclining mechanism, the operability of an operation unit for operating the reclining mechanism is excellent. The present invention provides a floor chair that has no risk of an operation part being inadvertently operated and is excellent in design.

  The invention according to claim 1 is a floor chair having a seat portion, a backrest portion, an armrest portion, and a reclining mechanism capable of adjusting an angle of the backrest portion, and an operation portion for operating the reclining mechanism. The present invention relates to a floor chair, which is provided immediately below the armrest portion.

  The invention according to claim 2 is the floor chair according to claim 1, wherein the operation portion is composed of a plate disposed substantially parallel to the armrest portion and along the length direction of the armrest portion. About.

  According to a third aspect of the present invention, the plate is provided so as to be rotatable about an axis along the length direction of the armrest portion, and the reclining mechanism rotates the plate upward on the outer side of the armrest portion. 3. The floor chair according to claim 2, wherein the floor chair operates when operated.

  According to a fourth aspect of the present invention, the reclining mechanism comprises a cylinder, and the cylinder has one end attached to a frame constituting the seat portion and the other end attached to a frame constituting the backrest portion. It is related with the floor chair in any one of Claims 1 thru | or 3 characterized by the above-mentioned.

  According to a fifth aspect of the present invention, the operation unit and the reclining mechanism are connected by a wire, the wire connects the plate and an operation switch of the cylinder, and the plate is rotated upward by the operation. The floor chair according to claim 4, wherein the operation switch is operated through a wire.

  The invention according to claim 6 relates to the floor chair according to claim 5, wherein the wire is inserted into a hollow frame constituting the armrest portion.

  The invention according to claim 7 is characterized in that the wire is disposed between two parallel frames extending downward from the armrest portion so as to support the armrest portion. 5. The floor chair according to 5.

  In the invention according to claim 8, the backrest portion is divided into a plurality of members in the vertical direction, and at least one of the plurality of members is movable in the vertical direction along the frame constituting the backrest portion. The floor chair according to claim 1, wherein

According to the first aspect of the present invention, since the operation part for operating the reclining mechanism is provided directly under the armrest part, the user remains in a sitting posture with his hand placed on the armrest part. It is possible to operate the reclining mechanism by operating the operation unit, and the operability is excellent.
In addition, the risk of the lever being inadvertently operated due to unintentional contact by a user or another person is low, and the design is excellent because the operation unit is not conspicuous.

  According to the second aspect of the present invention, the operation portion is formed of a plate disposed substantially parallel to the armrest portion and along the length direction of the armrest portion. It is possible to operate the plate even when the posture is placed with the hand placed on the back or the posture placed with the hand closer to the rear. As a result, for example, even when the user sits with the backrest part greatly lowered, the plate can be operated with the same posture, and the operability is extremely excellent.

  According to the invention of claim 3, the plate is provided so as to be rotatable about an axis along the length direction of the armrest portion, and the reclining mechanism rotates the plate upward on the outside of the armrest portion. By operating sometimes, the user can operate the reclining mechanism by rotating the plate using other fingers while placing the thumb on the armrest. In other words, the user can operate the reclining mechanism only by holding the hand while placing the hand on the armrest, so that the operability is extremely excellent.

  According to the invention according to claim 4, the reclining mechanism comprises a cylinder, and the cylinder is attached to a frame that constitutes a seat portion on one end side and is attached to a frame that constitutes a backrest portion on the other end side. The backrest can be tilted steplessly with a simple structure.

  According to the invention which concerns on Claim 5, the operation part and the reclining mechanism are connected by the wire, the wire has connected the plate and the operation switch of the cylinder, and the operation switch is connected via the wire by the upward rotation operation of the plate. By being operated, it becomes possible to transmit the operation of the operation unit smoothly and reliably to the reclining mechanism at a remote position with a simple configuration.

  According to the invention which concerns on Claim 6, while being able to hold | maintain a wire stably because the wire is penetrated inside the hollow frame which comprises an armrest part, unexpected external force is added to a wire and it is disconnected. And the reclining mechanism are prevented from malfunctioning.

  According to the seventh aspect of the invention, since the wire is disposed between two parallel frames extending downward from the armrest portion so as to support the armrest portion, the wire is unexpected. It is difficult to apply an external force, and it is possible to prevent the wire from being disconnected or the reclining mechanism from malfunctioning.

  According to the eighth aspect of the present invention, the backrest portion is divided into a plurality of members in the vertical direction, and at least one of the plurality of members is movable in the vertical direction along the frame constituting the backrest portion. Thus, it becomes possible to freely change the height of the backrest according to the sitting height of the user.

Hereinafter, a preferred embodiment of a floor chair according to the present invention will be described with reference to the drawings as appropriate.
FIG. 1 is a front perspective view of a floor chair according to the present invention, FIG. 2 is a rear perspective view of the floor chair according to the present invention, and FIG. 3 is a side view of the floor chair according to the present invention.
The floor chair according to the present invention includes a reclining mechanism (4) (FIGS. 1 to 3) that can adjust the angles of the seat (1), the backrest (2), the armrest (3), and the backrest (2). And an operation unit (5) for operating the reclining mechanism.

The backrest (2) is divided into a plurality of members (three in the illustrated example) in the vertical direction.
At least one of the plurality of members (the upper two in the illustrated example) is movable in the vertical direction along a frame (a third frame (14) described later) constituting the backrest portion (2). .
Specifically, a concave portion (21) extending in the vertical direction is formed on the back surface of the backrest portion (2), and the frame (14) extending in the vertical direction is fitted in the concave portion (21). The part (2) is movable in the vertical direction along the frame (14) (see the arrow in FIG. 2).
And the height of the backrest part (2) can be adjusted according to a user's seat height by screw-fixing the moved backrest part (2) in a suitable position.
In addition, what the backrest part (2) is not dividedly formed is also included in this invention.

The operation part (5) is composed of a plate (hereinafter referred to as plate (5)) provided directly below (in the vicinity of directly below) the armrest part (3).
In the illustrated example, the operation portion (5) is provided directly below the left armrest portion (3), but may be provided directly below the right armrest portion (3), or both the left and right armrest portions (3 ) May be provided directly below. The same applies to the second embodiment described later.

The plate (5) is made of a rectangular plate extending substantially parallel to the lower surface of the armrest (3) and along the length direction of the armrest (3) (front-rear direction of the floor chair).
The plate (5) is approximately the same as or slightly shorter than the length of the armrest (3), and is slightly lower (for example, about 3 to 6 cm) below the armrest (3). It is arranged.

4 is an exploded perspective view showing the mounting structure of the plate (5) in the armrest (3), FIG. 5 is a sectional view showing the structure, and FIG. 6 is a view showing the structure together with the operation method of the plate (5). It is. In FIGS. 6A and 6B, a view in the direction of arrow A is drawn on the lower right.
The plate (5) is attached below a hollow pipe-shaped frame (6) (hereinafter referred to as an armrest frame (6)) constituting the armrest (3).
A cover member (31) is mounted above the armrest frame (6) so as to cover the upper side and the inner side (side where the seat is present) of the armrest frame (6). This cover member (31) is a member which comprises the upper surface of an armrest part (3). In FIG. 5, the cover member (31) is omitted.
By wrapping the frame (6) and the cover member (31) with cloth or leather so as not to be visually recognized, an armrest (3) as shown in FIGS. The plate (5) comes to be positioned.

Three small plates (7) are fixed on the upper surface of the armrest frame (6) at intervals from each other along the front-rear direction of the frame. Of the three small plates (7), the two small plates (71) located at the forefront and the rear have tongues (72) extending downward (the last small plate). The distance between the tongue pieces (72) of the two small plates (71) is set to be approximately the same as the length of the plate (5).
The two tongue pieces (72) both have through holes (73), and screws (74) are respectively inserted into the through holes (73), and the screw portions of the screws (74) are connected to the front edge of the plate (5). Then, the plate (5) is fixed between the two tongue pieces (72) by screwing into the rear edge.
The plate (5) fixed in such a manner can be rotated around a line connecting two screws (74), that is, an axis along the length direction of the armrest (3) (FIG. 6 ( b) See arrow).

The armrest frame (6) has a through hole (61) that penetrates the frame in the vertical direction at a position closer to the front. A plate (8) having a pulley (81) is fixed to the upper surface of the through hole (61).
The plate (8) has a pair of left and right extending pieces (82) extending downward, and a pulley (81) is rotatably sandwiched between the pair of extending pieces (82). Yes. The extension piece (82) extends to the inside of the frame through the through hole (61) above the armrest frame (6), whereby the pulley (81) is placed inside the armrest frame (6). positioned.

A wire (9) is inserted through the armrest frame (6) (see FIG. 5).
The wire (9) connects the operation unit and the reclining mechanism, and more specifically connects the plate (5) and a cylinder operation switch (described later). In addition, (91) in a figure is a wire tube which coat | covers a wire (9).
One end side of the wire (9) is wound around the pulley (81) as shown in FIG. 5, and then goes out of the frame through the through hole (61) below the armrest frame (6). And fixed to the plate (5) below the armrest (3). In FIG. 5, the fixing part of the wire (9) to the plate (5) is denoted by reference numeral (10).

As shown in FIGS. 4 and 6 (a) and 6 (b), the armrest frame (6) is disposed closer to the inner side of the armrest (3) (the side where the seat is located), and the plate (5) is closer to the armrest ( It is arranged on the outer side of 3).
As for the edge in the width direction of the plate (5), the inner edge is located at the approximate center of the armrest frame (6) in the width direction, and the outer edge is located outside the cover member (31) (see FIG. 6 (a) etc.). Further, the two screws (74) fixing the plate (5) are located inside the center in the width direction of the plate (5).
With these configurations, the user can easily operate the plate (5) from the outside of the armrest (3) while keeping his hand on the armrest (3).

  FIG. 7 is a front perspective view showing a state where an exterior material such as a cushion material of the floor chair according to the present invention is removed, that is, a state of only a frame. In FIG. 7, the upper part of the backrest part (2), the mounting structure of the plate (5), the wire (9), and the peripheral part of the operation switch (described later) of the cylinder (4) are omitted.

In the floor chair according to the present invention, the entire skeleton is formed by a hollow pipe-shaped metal frame.
The frame is roughly divided into a first frame (12) constituting the armrest frame (6) and the leg of the floor chair, and a second frame (13) constituting the seat (1). ) And a third frame (14) constituting the backrest part (2), and these frames are combined to form the skeleton of the floor chair.

  The second frame (13) and the third frame (14) are a pair of left and right plates (13a) fixed to the second frame (13), and a pair of left and right plates attached to the third frame (14) ( 14a) are pivotally connected via a pin (15). Thereby, the 3rd frame (14) can turn to the 2nd frame (13) centering on a pin (15) (refer the arrow in a figure).

A cylinder (4) constituting a reclining mechanism is attached to the frame.
The type of the cylinder (4) is not particularly limited, and may be a gas cylinder such as an air cylinder or a hydraulic cylinder such as a hydraulic cylinder.
One end side of the cylinder (4) is attached to the second frame (13) constituting the seat portion (1) via the square pipe (18), and the other end side is attached to the third frame (14) constituting the backrest portion (2). ). More specifically, the other end side of the cylinder (4) is attached to the lowermost horizontal bar (141) of the third frame (14).
Thereby, when the rod of the cylinder (4) is extended, the backrest part (2) tilts forward, and when the rod is shortened, the backrest part (2) tilts backward, and the seat part of the backrest part (2) ( The angle relative to 1) can be changed (see arrows in FIGS. 3 and 7).

FIG. 8 is a detailed view of the circled portion (peripheral portion of the cylinder operation switch) in FIG. 7, where (a) is a perspective view and (b) is a side view.
An operation pointer (4a) for operating the cylinder is provided at one end of the cylinder (4).
When the operation pointer (4a) is pressed, the rod of the cylinder (4) can be freely expanded and contracted, and the inclination of the backrest (2) can be adjusted steplessly.
Specifically, in a state where the operation pointer (4a) is pressed, if the user applies a force backward to the backrest part (2), the cylinder rod is shortened and the backrest part (2) falls backward, and the force is applied. When pulled out, the cylinder rod extends and the backrest (2) returns to the front. When the pressing of the operation pointer (4a) is released, the backrest (2) stops moving and is fixed at a desired angle.

One end of the cylinder (4) has a square pipe (18) fixed to the second frame (13) via two U-shaped brackets (16) and (17) pivotably attached to each other. It is connected to the.
The lower part of the lever metal part (19) is pivotally attached to the lower part of the U-shaped metal part (16) via a pin (20). The lever fitting (19) functions as an operation switch for the cylinder (4).
The other end of the wire (9) is fixed to the upper portion of the lever fitting (19) via a pin (21). When the wire (9) moves back and forth, the lever fitting (19) is moved to the pin (20). (See the arrow in FIG. 8B).
When the wire (9) moves rearward (pulled), the lever fitting (19) rotates to the position indicated by the phantom line, thereby pressing the operating pointer (4a) of the cylinder (4).

Hereinafter, the operation method of the reclining mechanism of the floor chair according to the present invention will be described.
As shown in FIGS. 9 and 10, the user operates the operation unit (5) while sitting on the floor chair and placing the hand (H) on the armrest (3).
Specifically, with the thumb placed on the armrest (3), on the outside of the armrest (3), the remaining fingers are applied to the lower surface of the plate (5) directly below the armrest (3) and gripped. To work.
Then, as shown by the arrows in FIGS. 6 (b) and 6 (c), the plate (5) has an armrest centered on the line connecting the two screws (74), that is, the axis along the length direction of the armrest portion (3). It turns upward on the outside of the part (3).

When the plate (5) is rotated upward on the outer side of the armrest (3), the plate (5) is rotated downward on the inner side of the armrest (3), and one end of the wire (9) is moved accordingly. It is pulled downward (see FIG. 6B).
When one end of the wire (9) is pulled downward, the other end of the wire (9) moves backward, so that the lever fitting (19) rotates to the position indicated by the phantom line, and the cylinder (4) The operating pointer (16a) is pressed (see FIG. 8 (b)).
Thereby, the rod of the cylinder (4) can be freely expanded and contracted, and the inclination of the backrest (2) can be freely adjusted by adjusting the force applied by the user to the backrest (2). become able to.

Next, another embodiment (hereinafter referred to as a second embodiment) of the floor chair according to the present invention will be described.
The operation of the floor chair of the second embodiment is the same as that of the above-described embodiment (hereinafter referred to as the first embodiment), but the mounting structure and frame structure of the plate (5) in the armrest (3) are the same. Is different.
Hereinafter, the difference between the floor chair of the second embodiment and that of the first embodiment will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.

FIG. 11 is an exploded perspective view showing the mounting structure of the plate (5) in the armrest (3), FIG. 12 is a sectional view showing the structure together with the operation method of the plate (5), and FIG. 13 shows the structure of the plate (5). It is a perspective view shown with these operation methods.
The armrest (3) has a support plate (50) that supports the lower surface of the cover member (31) similar to the first embodiment, and the two support plates (50) are extended vertically downward. These are supported by mutually parallel hollow pipe-shaped frames (51). In FIG. 11, the cover member (31) is omitted.

  A shaft (52) extending along the length direction of the armrest (3) is attached to the inner side of the two frames (51) (the side with the seat). Further, a rectangular parallelepiped block (59) for attaching the shaft (52) to the inside of the frame is fixed to the circumferential surface portions of the two frames (51) facing each other.

  The shaft (52) has a U-shaped projecting piece (53) (54) extending toward the outside (side without the seat) at both ends and the center in the length direction. The protruding pieces (53) fixed to both ends are arranged such that the U-shaped parallel plate-like portions are horizontal and the open portions face outward. The protruding piece (54) fixed to the center portion is arranged so that the parallel portions of the U-shape are vertical and the opening portion faces upward. Both the projecting pieces (53) and (54) have through holes penetrating the plate-like portions parallel to each other. Further, the protruding piece (54) has a through hole (60) on its lower surface (see FIG. 12).

Small plates (55) extending in the vertical direction are fixed to positions (two places) between the protruding piece (53) and the protruding piece (54) of the shaft (52). These small plates (55) Has a through hole.
The block (59) and the small plate (55) are overlapped with each other so that their through holes are matched, and a bolt (56) is inserted into the matched through hole and a nut (not shown) is screwed. Thus, the shaft (52) is fixed inside the two frames (51).

In a state where the shaft (52) is fixed inside the two frames (51), the plate (5) is fixed to the protruding piece (53).
The plate (5) extends along the length direction of the armrest (3), and has a concave shape in which both ends of the rectangular length direction protrude inward in plan view. In addition, a through hole is formed in the projecting portion toward the inside of the plate (5).
Then, the through holes of the plate (5) and the protruding piece (53) are matched, a bolt (57) is inserted into the matched through hole, and a nut (not shown) is screwed to the protruding piece (53). On the other hand, the plate (5) is fixed.

The wire (9) is disposed so as to extend in the vertical direction at an intermediate position between the two frames (51), and a cylindrical locking member (58) is attached to the upper end (one end) thereof. Yes.
As shown in FIG. 12, the locking member (58) is fitted into a through hole provided in a plate-like portion parallel to each other of the protruding piece (54) protruding from the shaft (52). In this state, the wire (9 ) Penetrates the through hole (60) provided in the lower surface of the protruding piece (54).

The other end of the wire (9) is connected to a cylinder operation switch (lever bracket (19)), as in the first embodiment.
However, in the first embodiment, the wire (9) directly connects the plate (5) and the cylinder operation switch, but in the second embodiment, the wire (9) is connected to the plate (5) and the cylinder. The operation switch is indirectly connected to the shaft (52) via the protruding piece (54).

FIG. 14 is a front perspective view showing a state in which an exterior material such as a cushion material of the floor chair according to the second embodiment is removed, that is, a state of only the frame. Also in FIG. 14, the upper part of the backrest part (2), the mounting structure of the plate (5), the wire (9), and the peripheral part of the operation switch (described later) of the cylinder (4) are omitted.
In addition, the structure of the operation switch periphery part of a cylinder is the same as that of 1st embodiment (refer FIG. 8).

  The frame in the second embodiment is roughly divided into a first frame (12) that constitutes a leg portion of a floor chair, a second frame (13) that constitutes a seat portion (1), and a backrest portion. The third frame (14) constituting (2), and the fourth frame connecting the frame (51) below the right armrest and the frame (51) below the left armrest, The frame is combined to form the skeleton of the floor chair.

Hereinafter, the operation method of the reclining mechanism of the floor chair according to the second embodiment will be described.
As shown in FIGS. 9 and 10, the user operates the operation unit (5) while sitting on the floor chair and placing the hand (H) on the armrest (3).
Specifically, with the thumb placed on the armrest (3), on the outside of the armrest (3), the remaining fingers are applied to the lower surface of the plate (5) directly below the armrest (3) and gripped. To work.
Then, as shown by the arrows in FIGS. 12 (b) and 13 (b), the plate (5) has the armrest (3) centered on the axis (52) along the length direction of the armrest (3). It turns upward on the outside.

When the plate (5) is rotated upward on the outside of the armrest (3), the projecting piece (54) is rotated upward together with the shaft (52), and accordingly, the upper end of the wire (9) is moved upward. It is pulled (see FIG. 12 (b)).
When the upper end of the wire (9) is pulled upward, the other end of the wire (9) moves backward, so that the lever fitting (19) rotates to the position indicated by the phantom line, and the cylinder (4) The operating pointer (16a) is pressed (see FIG. 8 (b)).
Accordingly, the rod of the cylinder (4) can be freely expanded and contracted, and the inclination of the backrest (2) can be adjusted freely by adjusting the force applied by the user to the backrest (2). become able to.

As described above, in the floor chair according to the present invention, in any of the first embodiment and the second embodiment, the user holds the operation unit while sitting with his hands on the armrests. The reclining mechanism can be operated by operating.
Further, the user can operate the plate (5) in the posture (see FIG. 9) with the hand placed at the front position of the armrest (see FIG. 9) or the posture (see FIG. 10) placed in the rear position. .
Therefore, even when the user is sitting with the backrest part greatly tilted backward (see FIG. 10), the plate can be operated in the same posture, so that the operability is extremely excellent.

The flow chair according to the present invention is characterized by the configuration of the operation unit of the reclining mechanism, and other configurations (for example, the shape of the floor chair, etc.) are not particularly limited.
For example, the leg may not be provided under the seat, the leg may be made of wood, or the seat may be rotated with respect to the leg. Alternatively, a massage function may be added.

  The present invention can be used for a floor chair such as a seat chair provided with a reclining mechanism.

It is a front perspective view of the floor chair concerning the present invention. It is a back perspective view of the floor chair concerning the present invention. It is a side view of the floor chair concerning the present invention. It is a disassembled perspective view which shows the attachment structure of the plate in an armrest part. It is sectional drawing which shows the attachment structure of the plate in an armrest part. It is a figure which shows the attachment structure of the plate in an armrest part with the operating method of a plate. It is a front perspective view which shows the state which removed exterior materials, such as the cushioning material of the floor chair which concerns on this invention. FIG. 8 is a detailed view of a circled portion (cylinder operation switch peripheral portion) of FIG. 7. It is a figure which shows the state which is operating the operation part in the state which the user sat on the floor chair and put the hand on the armrest part. It is a figure which shows the state which is operating the operation part in the state which the user sat on the floor chair and put the hand on the armrest part. It is a disassembled perspective view which shows the attachment structure of the plate in the armrest part of the floor chair of 2nd embodiment. It is sectional drawing shown with the operation method of the plate attachment structure plate in the armrest part of the floor chair of 2nd embodiment. It is a perspective view shown with the operation method of the plate attachment structure plate in the armrest part of the floor chair of 2nd embodiment. It is a front perspective view which shows the state which removed exterior materials, such as the cushioning material of the floor chair which concerns on 2nd embodiment.

Explanation of symbols

1 Seat 2 Backrest 3 Armrest 4 Reclining Mechanism (Cylinder)
5 Operation part (plate)
6 Armrest frame 9 Wire 19 Actuation switch (lever bracket)
51 2 frames

Claims (8)

A floor chair having a seat, a backrest, an armrest, and a reclining mechanism capable of adjusting an angle of the backrest,
A floor chair characterized in that an operation part for operating the reclining mechanism is provided directly below the armrest part.   The floor chair according to claim 1, wherein the operation portion is made of a plate disposed substantially parallel to the armrest portion and along a length direction of the armrest portion. The plate is provided to be rotatable around an axis along the length direction of the armrest,
The floor chair according to claim 2, wherein the reclining mechanism is activated when the plate is rotated upward on the outside of the armrest. The reclining mechanism comprises a cylinder;
4. The floor chair according to claim 1, wherein one end of the cylinder is attached to a frame constituting the seat portion, and the other end is attached to a frame constituting the backrest portion. The operation unit and the reclining mechanism are connected by a wire,
The wire connects the plate and the cylinder operating switch;
The floor chair according to claim 4, wherein the operation switch is operated through the wire by an upward rotation operation of the plate.   The floor chair according to claim 5, wherein the wire is inserted into a hollow frame constituting the armrest portion.   The floor chair according to claim 5, wherein the wire is disposed between two parallel frames extending downward from the armrest portion so as to support the armrest portion. The backrest is divided into a plurality of members in the vertical direction,
The floor chair according to any one of claims 1 to 7, wherein at least one of the plurality of members is movable in a vertical direction along a frame constituting the backrest portion.

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