JP2934197B2 - Chair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seating chair for supporting a back when a user sits down with his / her knees collapsed to prevent numbness of the lower limbs while sitting down.

[0002]

2. Description of the Related Art In general, a seat chair has a structure in which a backrest plate is provided at a rear portion of a seat plate. In this chair, when the knees are broken and the user sits down on the seat plate and leans on the backrest plate, the back is supported in an upright state.

In addition, a seat plate is provided on a support,
There are also known orthopedic aids for sitting on the seat with the knees broken and receiving the weight of the upper body with the seat to reduce the burden on the lower limb, thereby preventing numbness of the lower limb due to prolonged sitting. I have.

[0004]

However, with the above-mentioned chair and the assisting device for sitting straight, it was not possible to change the way of sitting each other.

[0005] Therefore, an object of the present invention is to provide a seat chair which can lean on the knee and lean, and can assist in sitting straight.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a movable plate which is connected to an upper part of a support standing on a rear portion of a substrate so as to be able to move up and down. a support portion for supporting in a state to form a stopper portion for holding the movable plate to the standing state, the front and rear of the substrate tip portion of the strut
From the top to the end of the support.
A support plate is provided along with the top and front surfaces of the support plate.
Are the supporting portion and the stopper portion, respectively, and the movable plate
On the back of the movable plate when the movable plate falls down and stands up
A contact plate is provided for contacting the upper surface and the front surface of the device (claim 1).

In this chair, when the movable plate is turned down, the knees are folded on the board, and the movable plate is seated on the movable plate, the weight of the upper body is received by the movable plate supported by the support portion of the column, so that the lower leg Burden is reduced.

When the movable plate is erected and held by the stopper, it is possible to lean down on the substrate and lean against the movable plate.

Furthermore, supported by variable dynamic plate is stabilized, in addition to rattling of the movable plate when sitting straight or when the backrest is prevented, the back of the movable plate is protected by a wear plate, and durability is improved.

[0010] Further, side plates are connected to both side edges of the plate,
A pin serving as a swing center of the movable plate is inserted through the both side plates and the support column , and a gap is provided between a front portion of the upper surface of the support plate and the corresponding plate when the movable plate falls down (claim). Item 2 ), since the interference between the support plate and the abutment plate due to the swing of the movable plate is prevented, the movable plate can be smoothly swung without strict dimensional control during manufacturing.

[0011] In addition, the strut, a structure in which parallel two pipes, the rear surface of the movable plate are provided as the bracing member is inserted between the pipes to bend down倒時of the movable plate (claim 3), In the normal sitting state in which the movable plate is turned down, the swing of the movable plate in the left-right direction is suppressed, so that the seat can be stably seated.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 3, a seating chair according to the present invention includes a base plate 1 and a movable plate 2, and the surfaces of the base plate 1 and the movable plate 2 are respectively provided. A cushion body is provided. At the rear part of the back surface of the substrate 1, a base end of a laterally U-shaped column 3 is fixed. Post 3
The opening is directed forward, and the movable plate 2 is connected to the tip of the opening via pins 4 so as to be able to move up and down. Back surface 4 of substrate 1
At the corner, an adjuster 5 for stabilizing the substrate 1 horizontally when the substrate 1 is placed on the floor is provided.

The upper portion of the column 3 is a support portion 3a that supports the back surface of the movable plate 2 when the movable plate 2 is in a down state, and the distal end surface of the column 3 limits the standing angle of the movable plate 2. The stopper 3b is provided.

In this chair, when the movable plate 2 is turned down and the knees are folded on the substrate 1 and the user sits on the movable plate 2, the weight of the upper body is adjusted by the movable plate 2 supported by the support portion 3 a of the column 3. Because it is accepted, the burden on the lower limbs is reduced.

The movable plate 2 is erected, and the stopper 3
When held at b, the user can sit down on the substrate 1 and lean on the movable plate 2.

The connecting portion between the movable plate 2 and the column 3 may be configured as shown in FIGS. Here, the support 3 is composed of two pipes 3c and 3d.
A support plate 6 is provided at the distal ends of c and 3d. The support plate 6 is formed by connecting a horizontal support portion 6a and a vertical support portion 6b along the upper and lower end portions of the pipes 3c and 3d, respectively, and each pair provided on the back surface of the vertical support portion 6b. The support plate 6 is fixed to the column 3 by inserting the arc-shaped projecting pieces 6c, 6d into the openings at the distal ends of the pipes 3c, 3d. The upper surface of the horizontal support 6a and the front surface of the vertical support 6b of the support plate 6 are the support 3a and the stopper 3b, respectively.

On the other hand, on the back surface of the movable plate 2, a contact plate 7 is attached. Side plates 8, 8 are continuously provided on both side edges of the contact plate 7, and these both side plates 8, 8 and both pipes 3c, 3d are provided.
, The pin 4 is inserted. The contact plate 7 is provided with a stepped portion 7a, and when the movable plate 2 falls down, the stepped portion 7a of the contact plate 7 is
a distance S between the portion located forward of
Is provided. In addition, a steadying member 9 inserted between the two pipes 3c and 3d when the movable plate 2 falls down is provided at the leading edge of the contact plate 7.

When the movable plate 2 and the column 3 are connected as described above, the movable plate 2 is stably supported by the contact between the support plate 6 and the support plate 7, and the movable plate 2 is rattled when sitting straight or when leaning back. Is prevented, and the back surface of the movable plate 2 is protected by the contact plate 7, thereby improving the durability.

Further, the existence of the interval S prevents interference between the support plate 6 and the abutment plate 7 due to the swing of the movable plate 2,
The movable plate 2 can be smoothly swung without strict dimensional control during manufacturing.

In addition, in the sitting position in which the movable plate 2 is turned down, the anti-sway member 9 is inserted between the two pipes 3c and 3d.
Can be seated stably.

[0021]

As described above, in the seating chair according to the present invention, the movable plate is connected to the upper part of the support standing upright on the rear part of the board so as to be able to move up and down. With the support part that supports the movable plate and the stopper part that holds the movable plate in the upright state, when the movable plate is turned down, the knee is folded on the board, and the movable body is seated on the movable plate, the weight of the upper body is As a result, the burden on the lower limb is reduced and numbness of the lower limb due to sitting straight is prevented.

Further, when the movable plate is raised and held by the stopper portion, it is possible to lean down on the substrate and lean against the movable plate.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a chair according to the present invention.

FIG. 2 is a side view of the above.

FIG. 3 is a sectional view taken along the line III-III of FIG. 2;

FIG. 4 is a side view showing a use state of the above.

FIG. 5 is a partially cutaway side view showing another connecting structure of the movable plate and the support.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;

FIG. 7 is a partially cutaway bottom view of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 Movable plate 3 Support 3a Support part 3b Stopper part 3c, 3d Pipe 4 Pin 6 Support plate 7 Applicable plate 8 Side plate 9 Anti-sway member S Interval

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47C 9/00 A47C 3/16

Claims (3)

(57) [Claims] 1. A movable plate is connected to an upper portion of a support provided on a rear portion of a substrate so as to be able to move up and down, and a support portion for supporting the movable plate in an upright state, and the movable plate is held in an upright state. A stopper portion is formed, and the front end of the support is positioned in the front-back direction of the substrate.
From the top to the end
Along with the support plate, and the top and front of the support plate
The support portion and the stopper portion, respectively, and the movable plate
On the back, when the movable plate falls down and rises,
A seat chair provided with a contact plate that contacts the top and front surfaces . 2. A side plate is continuously provided on both side edges of the contact plate, a pin serving as a swing center of the movable plate is inserted through the both side plates and the support column, and a front surface of the support plate is brought into contact with a front surface of the support plate. The seat chair according to claim 1 , wherein an interval is provided between the seat and the board. 3. The method according to claim 1, wherein the support column has a configuration in which two pipes are arranged in parallel, and a backrest member inserted between the two pipes when the movable plate falls down is provided on the back surface of the movable plate. The chair described.