KR101425743B1 - Folding chair - Google Patents

Abstract

A folding chair according to an embodiment of the present invention includes: a fixing pole installed in a fixing structure; a back support unit mounted in the fixing pole; and a seating plate which is installed on a rotating shaft fixed on the fixing pole to be able to rotate at an angle. The seating plate can include a pinch prevention unit which is formed by extending both side surfaces of the seating plate upward in the shaft direction to prevent the user′s body from being stuck in a gap between the fixing pole and the seating plate unit when the seating plate unit is unfolded when the user sits.

Description

Folding chair

The present invention relates to a foldable chair, and more particularly, to a foldable chair that improves comfort when a user is seated and prevents a part of the body from being caught between the seat and the fixing base.

Generally, a folding chair refers to a chair that is folded when the user is seated and folded when the user stands up while supporting the load of the user.

Such a folding chair is installed in a stadium, a theater or a movie theater which accommodates a large number of spectators, and when the spectators rise from the seat, the seat plate is automatically raised and folded.

On the other hand, the principle that the seat plate is automatically raised according to the presence or absence of the load of the user is generally realized by the restoring force of the spring or the own weight of the seat plate.

Here, when the restoring force of the spring is used, there is an advantage that the interval between the seat and the seat can be minimized. However, it is difficult to expect a constant inversion for a long time due to the change in rigidity of the spring itself over time, There is a problem that the degree of reversal is different and the sense of identity is lost.

For this reason, a folding chair which is folded by the weight of the seat has been developed. However, since the folding chair using the conventional weight uses the center of gravity of the seat, the rotation point of the seat should protrude beyond the center line of the seat. The spacing of the seats in the seat is increased and the seat is inconvenient when the spectators move.

Further, when the position of the rotary shaft is advanced forwardly than the center of the seat, and the crowd is seated, the rear part tends to descend, and the seating feeling is lowered.

In addition, in the conventional folding chair, there is a possibility that a finger or the like is likely to be caught by the gap between the pillar portion and the seat plate portion, and there is a possibility that a finger or the like may be injured.

Therefore, research is urgently needed to prevent seizure of a finger or the like in a folding chair implemented by the weight of the seat plate and maximize comfort.

An object of the present invention is to provide a folding chair that prevents a part of a user's body from being caught in a gap between a fixing table and a seat when the seat is folded by the weight of the seat, and provides a comfortable seating feeling to the user.

The foldable chair according to an embodiment of the present invention includes a fixing table installed on a fixing structure; A back plate attached to the fixing table; And a seat plate that is rotatably coupled to the rotation shaft to be rotatable at a predetermined angle with respect to the rotation shaft, wherein the seat plate has a gap between the seat plate and the seat when the seat plate is deployed by seating the user, And an accommodating portion formed to extend axially upward from both side surfaces to prevent a part of the body from being caught.

In the foldable chair according to an embodiment of the present invention, when the seat plate is deployed by the seating of the user, it is formed so as to be equal to or higher than the portion of the seat plate corresponding to the side surface of the seat plate in the axial direction .

The seat plate of the folding chair according to an embodiment of the present invention may be coupled to the rotation shaft so that the rotation axis is offset to the rear side of the seat plate, thereby preventing rotation of the seat plate when the user is seated.

The seat portion of the folding chair according to an embodiment of the present invention can be automatically folded by the weight difference between the front side and the rear side with respect to the rotation axis when the user stands.

The seat portion of the folding chair according to an embodiment of the present invention may have a smaller weight than the rear side so that the front side is automatically rotated toward the back plate when the user stands.

The rear side of the folding chair according to an embodiment of the present invention is configured such that the front side is automatically rotated while the rotation axis is offset toward the rear side of the left side plate when the user stands, Side weight increase portion.

The back side weight increasing part of the folding chair according to an embodiment of the present invention can support the waist and the back of the user when the user is seated.

The seat plate of the folding chair according to an embodiment of the present invention may include a stopper which contacts the part of the fixing table when the seat plate is rotated and fixes the seat plate at a predetermined position.

The stopper of the folding chair according to an embodiment of the present invention may protrude outward from both side surfaces of the seat plate.

The stopper of the folding chair according to an embodiment of the present invention may include a damping unit for alleviating an impact due to contact when the stopper contacts the stopper and a part of the fixing base.

The fixing base of the folding chair according to an embodiment of the present invention includes a penetration portion that penetrates to the outside, and the stopper may contact the one surface and the other surface defining the penetration portion when the user stands up and the user stands.

The foldable chair according to an embodiment of the present invention may further include a thickening part inserted into the rotation shaft to increase a distance between the fixing part and the seat part to increase the overall width of the fixing part.

According to the folding chair according to the present invention, when the seat is folded by the weight of the seat, part of the user's body can be prevented from being caught in the gap between the seat and the seat.

In addition, when the user is seated in the seat portion, a comfortable seating feeling is provided, and when the user stands up and the seat portion is folded, a sufficient passage is provided to increase the convenience in moving the user or the other.

Also, when a foldable chair connected in parallel is implemented, one width can be adjusted, so that it can be flexibly coped with the installation place.

1 is a schematic partially exploded perspective view showing a folding chair according to an embodiment of the present invention;
2 is a schematic front view showing a folding chair according to an embodiment of the present invention;
3 is a schematic side view of a folding chair in accordance with an embodiment of the present invention.
FIG. 4 is a schematic perspective view showing a seat plate provided on a folding chair according to an embodiment of the present invention; FIG.
5 and 6 are schematic side views showing the use state of a folding chair according to an embodiment of the present invention;
7 is a schematic perspective view showing a folding chair according to another embodiment of the present invention;

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Other embodiments falling within the scope of the inventive concept may readily be suggested, but are also considered to be within the scope of the present invention.

The same reference numerals are used to designate the same components in the same reference numerals in the drawings of the embodiments.

FIG. 1 is a schematic partial exploded perspective view showing a folding chair according to an embodiment of the present invention, FIG. 2 is a schematic front view showing a folding chair according to an embodiment of the present invention, and FIG. 1 is a schematic side view showing a folding chair according to an example.

FIG. 4 is a schematic perspective view illustrating a left side plate provided on a folding chair according to an embodiment of the present invention.

1 to 4, a foldable chair 100 according to an embodiment of the present invention includes a fixing table 110 installed on a fixing structure (not shown), a back plate 120 mounted on the fixing table 110, And a seat plate 130 that is rotatably coupled with respect to the fixing table 110. The seat plate 130 may be provided with an engagement protrusion 132. [

The fixing table 110 is an element for fixing the foldable chair 100 according to the present invention to the fixing structure and includes a receiving portion 112, an extending portion 114, a connecting portion 116, and a column portion 118 .

The receiving portion 112 may be coupled to various floor or wall surfaces as a fixed structure, and at least one of the receiving portions 112 may be provided.

Here, the method of joining the receiving portion 112 and the fixing structure may be combined by at least one of screw, bolt, bonding, and welding. However, the present invention is not limited thereto.

The extension portion 114 may extend to correspond to the support portion 112 and may define the height of the foldable chair 100 according to an embodiment of the present invention.

That is, the extending portion 114 may be installed on the receiving portion 112 so that the height of the extending portion 114 can be adjusted.

The extension portions 114 may be connected to each other by a connection portion 116 and the connection portion 116 may connect the extension portion 114 and the column portion 118 to each other.

Here, the support portion 112, the extension portion 114, and the connection portion 116 may be manufactured as separate members and then joined together, but the present invention is not limited thereto and may be integrally formed from the time of manufacture .

It is noted that the receiving portion 112, the extending portion 114, and the connecting portion 116 are not limited to the shapes shown in FIGS. 1 to 4, and can be variously modified according to the purpose of the person skilled in the art.

The column portion 118 may be fastened to both sides of the connection portion 116. The column portion 118 may be formed by fastening a rotation axis R for fastening the seat portion 130 to be rotatable at a predetermined angle .

The rotation axis R may be formed as a separate member from the column portion 118 and then may be fastened to the column portion 118 but may be integrally formed with the column portion 118 .

The seat plate 130 may be rotatable at a predetermined angle with respect to a rotation axis R fastened to the column portion 118 which is a component of the fixing table 110. The presence or absence of a user's load, And can be rotated counterclockwise (Y) or clockwise (X) with respect to the columnar part (118) of the fixing table (110) according to presence or absence of seating.

That is, when the user is seated and the load of the user is applied to the upper surface of the left plate portion 130, the left plate portion 130 may be deployed in a substantially vertical state with respect to the back plate portion 120, The load is removed and the seat plate 130 can be folded naturally.

The principle in which the seat plate 130 is folded in the clockwise direction is an automatic inversion principle based on the weight difference between the front side A and the rear side B of the seat plate 130 with respect to the rotation axis R Which will be described later.

In the meantime, when the seat plate 130 is unfolded by seating of the user, the seat plate 130 is configured such that a part of the user's body is caught by the gap between the seat plate 110 and the seat plate 130 And an accommodating portion 132 formed to extend axially upward from both side surfaces thereof.

When the seat plate 130 is unfolded by seating of the user, the catching and releasable portion 132 may be positioned at the same or different position in the upper axial direction than the portion of the seat plate 110 corresponding to the side surface of the seat plate portion 130 So that it is possible to prevent the user's finger or the like from being caught in the gap between the side surface of the seat plate 130 and the fixing table 110 in advance.

Here, it is general that the fixing table 110 and the seat plate 130 are coupled to each other with a fine gap formed therebetween for the rotation of the seat plate 130. In the case of the foldable chair without the accommodation plate 132, When the seat plate is unfolded, the upper end of the side surface of the seat plate is located axially lower than the seat, so that a finger or the like may be caught between the seat and the seat. have.

However, in the case of the foldable chair 100 according to the embodiment of the present invention, the catching bridges 132 formed to extend upward in the axial direction are formed on the left plate 130, so that even if the left plate 130 is unfolded, It is possible to prevent a part of the user's body or pants or the like from being caught in the gap between the column portion 118 of the fixing table 110 and the seat portion 130.

As mentioned above, when the user stands up, the seat plate 130 can be rotated clockwise to be automatically folded, and the front side A and the rear side B). ≪ / RTI >

In other words, the seat plate 130 may have a weight less than that of the rear side B so that the front side A is automatically rotated toward the back side plate 120 when the user stands, It can mean that the rear side B is heavier than the front side A. [

The seat plate 130 may be fastened to the rotation axis R such that the rotation axis R is offset to the rear side B of the seat plate 130, The rotation of the part 130 in the clockwise direction X can be prevented.

In other words, in the folding chair 100 according to the present invention, the length C of the front side A of the left side plate 130 is longer than the length D of the rear side B with respect to the rotation axis R Therefore, when the user is seated, it is possible to prevent the back of the hips from falling back, thereby providing a more comfortable seating feeling.

The foldable chair 100 according to the present invention can be formed such that the length C of the front side A of the left side plate 130 is longer than the length D of the rear side B, A and the rear side B can be made shorter than when the length of the rear side is longer than the length of the front side.

The length C of the front side A is longer than the length D of the rear side B even if the total length of the left side plate 130 is reduced to provide a comfortable seating feeling, A sufficient passage with the front seat can be ensured, so that the convenience of the user or another person can be improved when the seat is moved

In the present invention, the front side A of the left side plate 130 is located on the rear side (B side) of the left side plate part 130, It is possible to secure a sufficient passage compared with the case where the rear side is relatively longer than the front side when the left side plate 130 is folded.

Therefore, even if the space between the folding chair 100 according to the present invention and the front seat is reduced, a sufficient passage can be secured between the front seats at the time of folding the seat portion 130. Therefore, Can be saved.

Although the front side A is formed longer than the rear side B, the left side plate 130 can be automatically rotated in the clockwise direction when the user stands, Side weight increasing portion 134 formed on the rear side weight increasing portion 134. [

The rear side weight increasing part 134 may be configured such that the front side A is automatically rotated while the rotation axis R is offset toward the rear side B of the left plate part 130 when the user stands, And can support the waist and the back of the user when the user is seated.

Here, the back plate 120 may be mounted on a pair of the posts 118 of the fixing table 110 to support a user's seating and the like, and a known shape can be applied.

The back side weight increasing part 134 may increase the weight of the rear side B of the left side plate 130 and may contact the back of the user together with one side of the back side plate 120 when the user is seated, And the like.

As a result, when the length C of the front side A of the seat portion 130 is longer than the length D of the rear side B, the rear side weight increasing portion 134 is located on the rear side B can be made heavier than the front side A so that the clockwise rotation of the seat plate 130 can be automatically realized by the gravity when the user stands up.

The seat plate 130 may be fixed at a predetermined position by a stopper 136. The stopper 136 may be fixed to the seat plate 130 when the seat plate 130 is rotated 110, i. E., A portion of the post 118.

4 and 5 and a part of the column portion 118 to which the stopper 136 and the stopper 136 are contacted is covered by the lid portion 140 and the protection portion 150 It can be protected from the outside.

5 and 6 are schematic side views showing a use state of a folding chair according to an embodiment of the present invention.

5 and 6, the seat plate 130 is brought into contact with a part of the column portion 118 of the fixing table 110 when the seat plate 130 rotates, so that the seat plate 130 is positioned at a predetermined position And the stopper 136 may protrude outward from both side surfaces of the seat plate 130. The stopper 136 may be formed of a metal plate.

In other words, the columnar portion 118 of the fixing table 110 may have a penetrating portion S penetrating to the outside, and the stopper 136 may define the penetrating portion S when the user sits and stands And the seat plate 130 can be fixed to a predetermined position by contacting the other surface S1 and the other surface S2, respectively.

The stopper 136 is provided with a damping portion so that one surface S1 and the other surface S2 defining the stopper 136 and a part of the fixing table 110, It is possible to mitigate the impact caused by the contact, thereby minimizing the wear due to the impact and the noise due to the contact.

Here, the penetration portion S may be covered by the cover 140 and the protection portion 150 (see FIG. 1) for protecting the outer appearance and the outside from the outside, and the cover 140, (150) may be formed of various materials.

5, when the load of the user is applied to the upper surface of the left plate part 130 by the seating of the user, the folding chair 100 according to the present invention has a function of moving the left plate part 130 and the back plate part 120, May be disposed at approximately the vertical position.

At this time, the fixing of the seat plate 130 can be realized by bringing the stopper 136 protruding from both sides into contact with the one surface S1 defining the penetration S.

6, since the weight F2 of the rear side B is greater than the weight F1 of the front side A as shown in Fig. 6, And the length C of the front side A (see FIG. 3) is longer than the length D of the rear side B (see FIG. 3) on the basis of the rotation axis R But it can be realized by the rear side weight increasing portion 134 of the rear side B as described above.

The seat plate 130 and the back plate 120 may be disposed in substantially parallel positions and the stopper 136 protruding from both sides of the seat plate 130 may be inserted into the through hole S And can be implemented in contact with the specified other surface S2.

The armrest portion 160 rotatably coupled to the column portion 118 when the seat board 130 is folded may be disposed in parallel with the folded seatboard portion 130, It is advantageous in securing the passage of the gas.

7 is a schematic perspective view showing a folding chair according to another embodiment of the present invention.

Referring to FIG. 7, a foldable chair 200 according to another embodiment of the present invention includes a foldable chair 170 according to an embodiment of the present invention described with reference to FIGS. 1 to 6, 100 will be omitted since they are the same in construction and effect.

The bulge portion 170 may be disposed between the fixing table 210 and the left plate portion 230 to increase the overall width of the fixing plate 210. Specifically, So that the distance between the seat portion 230 and the column portion 218 can be increased.

Accordingly, when the foldable chairs 200 according to the present invention are connected in parallel to be installed in an athletic field or a concert hall, the distance between the left and right board portions 230 and 230 can be adjusted, have.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent to those skilled in the art that such modifications or variations are within the scope of the appended claims.

100: folding chair
110:
120:
130:
132:
134: rear side weight increasing portion
136: Stopper
A: front side
B: rear side
S:

Claims (12)

A fixture mounted on the fixed structure;
A back plate attached to the fixing table; And
And a left plate part which is coupled to the rotation shaft fastened to the fixing table so as to be rotatable at a predetermined angle,
The left-
And an accommodating portion formed to extend axially upward from both sides of the body so as to prevent a part of the user's body or clothes from being caught in a gap between the fixing plate and the seat plate when the seat is deployed by the user's seat, Wherein the folding chair is automatically folded by a difference in weight between a front side and a rear side with respect to the rotation axis when the user stands up and is fastened to the rotary shaft such that the rotary shaft is offset toward the rear side.
The method according to claim 1,
Wherein the caulking portion is formed so as to be equal to or higher than the portion of the fixing plate corresponding to the side surface of the seat plate when the seat plate is deployed by the user's seat.
delete delete The method according to claim 1,
Wherein the left side plate has a weight smaller than that of the rear side so that the front side is automatically rotated toward the back plate when the user stands.
6. The method of claim 5,
And the rear side has a rear side weight increasing portion extending toward the back side plate based on a state in which the user is seated on the left side plate portion so that the front side is automatically rotated when the user stands.
The method according to claim 6,
And the back side weight increasing portion supports the waist and the back of the user when the user is seated.
The method according to claim 1,
And the seat plate has a stopper which comes in contact with a part of the fixing table when the seat plate is rotated and fixes the seat plate at a predetermined position.
9. The method of claim 8,
Wherein the stopper protrudes outward from both side surfaces of the seat panel.
9. The method of claim 8,
Wherein the stopper includes a damping portion that alleviates an impact due to contact when the stopper contacts the stopper and a part of the fixing base.
9. The method of claim 8,
The fixing base has a penetrating portion penetrating to the outside,
Wherein the stopper is in contact with the one surface and the other surface defining the penetrating portion when the user is seated and the user stands up.
The method according to claim 1,
Further comprising a widening portion inserted into the rotation shaft to increase a distance between the fixing portion and the seat portion to increase the overall width of the fixing portion.

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