KR102691913B1 - Transformable Foldable Furniture - Google Patents

Abstract

The present invention relates to a foldable furniture with a flexible shape, which is maintained by a square flat top plate and four legs supporting four corners of the top plate, and the legs supporting the four corners are located at the lower portions of the edge surfaces in each direction of the top plate. Four leg frames supporting are connected with hinges under the four corners of the top plate to form an L-shape, and each leg frame consists of two legs in the vertical direction and a bridge connecting the upper parts of the two legs, so as to form at least In one leg frame, two legs and a bridge are hinged so as to be rotatable relative to each other, the top plate and the leg frame are connected by hinges between edge surfaces in each direction of the top plate and each bridge, and at least one leg frame It further includes a support member for releasably supporting the expansion between the legs and the bridge, wherein the support member supports a body coupled and fixed to the inside of the legs of the leg frame, a lower end of the bridge, and is connected to the bridge by an external force. It consists of a leaf spring provided by being partially cut from the body to form elastic bending in a direction away from the bottom of the frame, and the leaf spring is used to prevent the legs and bridges of each leg frame from being folded against each other when the furniture is unfolded. By supporting the lower end, a shape-variable foldable furniture is provided that has an upper part that is flat in the horizontal direction so that it can be stably supported in close contact with the lower end of the bridge.

Description

Transformable Foldable Furniture}

The present invention relates to foldable furniture, and more specifically to shape-variable foldable furniture with improved durability, stability, safety, and simplicity.

Recently, as the number of one-person households living in studios or gositels of 10 pyeong or less and small apartments of 20 pyeong or less continues to increase, built-in or foldable furniture to make the most of such narrow spaces is receiving a lot of attention.

In accordance with this trend of the times, the present applicant invented shape-shifting furniture disclosed in Korean Patent Registration No. 10-2079368 (announced on February 19, 2020) in the conventional form of a folding chair. This patented invention includes a top module and a support module, and the support module is connected by a plurality of column frames, a connection frame, and a coupling pin, and is connected by a sliding hinge configured to slide and move relative to the rotation axis when folded. We provide shape-shiftable furniture in which the top module and support module are transformed from a three-dimensional structure to a flat structure.

However, in the above patented invention, as shown in Figures 4, 5, and 8, sliding hinges connecting the top module and support module are installed only at the two front magnetic seats, and the two rear edges are not connected by hinges. Since the top module and the support module are separated from each other, the rear part of the top module becomes unstable, which reduces overall durability and stability.

In addition, in the above patented invention, all four angles and edges of the top module completely cover the upper part of the support module and at the same time extend in the outer direction of the support module to form a protruding structure, which occupies a lot of space overall and causes the user to sit down and get up. There is always a risk that some of the accessories may become caught and damaged. In addition, in the case of this configuration, there may be significant limitations in changing the shape of the top module or structural changes in surrounding components.

In addition, the above patented invention is a form of connecting a horizontal connecting frame and a vertical column frame using a connecting pin. The connecting pin fixed to the connecting frame is inserted into the column frame to connect the connecting frame and the column. It is a structure that connects the frames, so in this case, when folding the chair, at least four coupling pins connecting the connection frame in each direction and the column frame must be removed one by one. Also, when unfolding the chair, the protrusions of at least four coupling pins must be removed. It has the disadvantage of being less practical as the process is cumbersome because it has to be inserted and connected one by one.

Accordingly, the present invention was developed to solve the above problems, and the purpose of the invention is to provide a shape-variable foldable furniture configured to connect the top module and the support module in all four directions.

In addition, another object of the present invention is to provide a shape-variable foldable furniture configured so that the four corners and edges of the top module are located inside the support module.

In addition, another object of the present invention is to provide shape-variable foldable furniture with simpler procedures so that it can be used more conveniently when unfolding and folding the furniture.

The object of the present invention is not limited to the above description, and other objects not mentioned herein will be clearly understood by those skilled in the art from the description below.

According to one form of the present invention for achieving the above object, there is a folding furniture maintained by a square flat top and four legs supporting four corners of the top, wherein the legs supporting the four corners are Four leg frames supporting the lower portions of the edge surfaces in each direction are connected by hinges under the four corners of the top plate to form an L-shape, and each leg frame has two legs in the vertical direction and the upper part of the two legs. It consists of a connecting bridge, and the two legs and the bridge in at least one leg frame are hinged so that they can rotate with respect to each other, and the upper plate and the leg frame are connected by hinges between the edge surfaces in each direction of the upper plate and each of the bridges. At least one leg frame further includes a support member for releasably supporting the expansion between the legs and the bridge,

The support member includes a body that is coupled and fixed to the inside of the legs of the leg frame, and a plate that supports the lower end of the bridge and is provided by being partially cut from the body to form elastic bending in a direction away from the lower end of the bridge by external force. Consisting of springs,

The leaf spring supports the bottom of the bridge so that the legs and bridge of each leg frame do not fold against each other when the furniture is unfolded. The leaf spring has an upper part that is flat in the horizontal direction so that it can be stably supported in close contact with the bottom of the bridge. A foldable furniture having a variable shape is provided.

According to the present invention, the leaf spring is configured to deviate from the bottom of the bridge by generating elastic bending by a predetermined external force while supporting the bottom of the bridge, and is located on the outside of each leg of the leg frame so that an external force can be applied to at least one side. It has a protruding pressing part, and a limiting member for limiting elastic bending of the leaf spring is installed on the inner side of each leaf spring corresponding to the support member, and the limiting member is located at the hinge point of each leg and bridge of the leg frame. It consists of a fixing part coupled to and a limiting panel extending downward from the fixing part and disposed corresponding to the leaf spring, wherein the limiting panel is oriented in a direction corresponding to the leaf spring to support restoration of the leaf spring. It has a bent and protruding structure.

The present invention, in one embodiment, includes a first upper hinge that connects the bridge of the first leg frame, which is the front leg frame of the furniture, and the top plate, and the bridge that connects the bridge of the second leg frame, which is the left leg frame of the furniture, and the top plate. All other upper and lower hinges except the second upper hinge and the first lower hinge connecting the two legs between the first leg frame and the second leg frame, the first part being coupled to one side and the other being coupled to the other side. The second part may be composed of a slide hinge connected to move relatively by sliding around the hinge axis when the second part rotates. In another embodiment, a third upper part connects the top plate and the bridge of the third leg frame, which is the right leg frame of the furniture. All hinges other than the hinge can be configured as a slide hinge in which a first part coupled to one side and a second part coupled to the other side are connected to move relative to each other by sliding around the hinge axis when rotated.

From the above-described features, the present invention can not only utilize indoor space by reducing the volume of the structure, but can also be installed in various indoor spaces and used as an interior structure to suit individual tastes.

In addition, the present invention is configured so that the top module and the support module are connected in all four directions without any separated parts, which is a problem with the above prior art, so that the overall durability and stability can be improved without shaking during use.

In addition, unlike the above prior art, the present invention is configured so that the four angles and edges of the top module are located inside the support module, thereby eliminating the risk of damage to the collar or part of the accessory when the user sits down and gets up, thereby increasing the safety of use. . In addition, by configuring it in this way, there is an advantage that changes in the shape of the top module or structural changes in surrounding components can be made much more freely and diversely.

In addition, the present invention can be used more conveniently by simplifying the process compared to the prior art so that it can be used more conveniently when unfolding and folding furniture.

Figure 1 is a top perspective view of the shape-shiftable foldable furniture in an unfolded state according to a first embodiment of the present invention;
Figure 2 is a lower perspective view of the shape-shiftable foldable furniture in the unfolded state according to the first embodiment of the present invention;
Figure 3 is a partially exploded perspective view of the shape-variable foldable furniture according to the first embodiment of the present invention;
Figure 4 is an overall exploded perspective view of the shape-variable foldable furniture according to the first embodiment of the present invention;
Figures 5a and 5b are a front view and a plan view showing the top plate of the shape-variable foldable furniture in a combined state according to the first embodiment of the present invention;
6A to 6F are flowcharts sequentially showing the folding process of the shape-variable foldable furniture according to the first embodiment of the present invention;
Figure 7 is an upper perspective view of the shape-shiftable foldable furniture in the unfolded state according to the second embodiment of the present invention;
Figure 8 is a lower perspective view of the shape-variable foldable furniture in the unfolded state according to the second embodiment of the present invention;
Figure 9 is a partially exploded perspective view of the shape-variable foldable furniture according to the second embodiment of the present invention;
Figure 10 is an overall exploded perspective view of the shape-variable foldable furniture according to the second embodiment of the present invention;
Figures 11a and 11b are a front view and a plan view showing the top plate of the shape-variable foldable furniture in a combined state according to the second embodiment of the present invention;
Figures 12a to 12f are flow charts sequentially showing the folding process of the shape-variable foldable furniture according to the second embodiment of the present invention.

Hereinafter, the present invention will be described in more detail through the attached drawings and examples.

In the following examples, the illustrations and descriptions are omitted except for essential parts in explaining the invention, and throughout the specification, identical and similar elements are assigned the same reference numerals and detailed descriptions thereof are omitted without repetition. do.

Figures 1 to 5 show the configuration of a shape-shiftable foldable furniture according to a first embodiment of the present invention, Figure 1 is an upper perspective view in an unfolded state, Figure 2 is a lower perspective view in an unfolded state, and Figure 3 is a partially exploded perspective view. , Figure 4 is an overall exploded perspective view, and Figures 5a and 5b are front and top views of Figure 1.

The first exemplary embodiment of the shape-shiftable foldable furniture according to the present invention will be described focusing on furniture in the shape of a chair as shown. However, of course, the present invention is not limited to just the chair structure, but can also be applied to furniture for various other purposes.

In this embodiment, the shape-shifting foldable furniture is held by a square, flat top plate 1 and legs 2 supporting each of the four corners 1a of the top plate. In addition, the legs 2 supporting these four corner portions 1a include four leg frames 100; 200; 300; supporting the lower portions of the edge surfaces 1b in each direction of the top plate 1. 400) can be formed by connecting. Each leg frame (100;200;300;400) is shaped like an upright L shape. 'A shape or a reverse image of the letter ㅂ' It has a 'shape, and is formed into a generally L-shaped leg by connecting the four corner portions 1a of the upper plate 1 with hinges below.

In this embodiment, for convenience of explanation, the front leg frame of the chair is referred to as the first leg frame 100, the left leg frame is referred to as the second leg frame 200, the right leg frame is referred to as the third leg frame 300, and the rear leg. The frame is referred to as the fourth leg frame 400.

Each leg frame (100;200;300;400) consists of two vertical legs (110,120) (210,220) (310,320) (410,420) and a bridge (130;230;330;430) connecting the upper parts of these legs. Each leg (110, 120) (210, 220) (310, 320) (410, 420) and the bridge (130; 230; 330; 430) are hinged to each other so that they can rotate relative to each other. In addition, in order to connect the leg frame (100; 200; 300; 400) and the top plate (1), a hinge is installed between the edge surface (1b) of the top plate in each direction and the bridges (130; 230; 330; 430) of the leg frame. It is connected.

The shape-deformable foldable furniture of the present invention is configured to be folded from the unfolded state of Figure 1 to a flat state as shown in Figures 6d to 6f by pushing it backward according to the order shown in Figures 6a to 6d described later. Preferably, for this purpose, each hinge is a first upper hinge 31 connecting the bridge 130 of the first leg frame 100 and the top plate 1, and a bridge 230 of the second leg frame 200. and a second upper hinge 32 connecting between the upper plate 1, and a first lower hinge connecting the two legs 110 and 220 between the first leg frame 100 and the second leg frame 200. All other hinges except (41), that is, the third upper hinge 33 connecting between the bridge 330 of the third leg frame 300 and the top plate 1, the bridge of the fourth leg frame 400 ( A fourth upper hinge 34 connecting between 430) and the upper plate 1, and a second lower hinge connecting the two legs 120 and 310 between the first leg frame 100 and the third leg frame 300. Hinge 42, third lower hinge 43 connecting the two legs 210 and 420 between the second leg frame 200 and the fourth leg frame 400, the third leg frame 300 and the fourth leg frame 400. It is preferable that the fourth lower hinge 44 connecting the two legs 320 and 410 of the four-leg frame 400 are all slide hinges.

Here, the slide hinge refers to a connection in which the first part coupled to the top plate and the second part coupled to the bridge slide around the hinge axis and move relative to each other when rotated. The specific shape of this slide hinge is disclosed in Patent Publication No. 10. It can be constructed with reference to the sliding hinge shown and described in FIG. 5 in -2019-0129182. The operation of the slide hinge in this embodiment will be described in detail below with reference to the chair folding process shown in FIGS. 6A to 6F.

The shape-variable foldable furniture of the present invention has legs 110, 120, 210, 220, and 310, 320 of each leg frame (100; 200; 300; 400) so that the four legs (2) do not collapse and remain stable in the unfolded state as shown in Figure 1. ) (410,420) and the bridge (130; 230; 330; 430) may be provided with a support member 500 to support the unfolding in a releasable manner.

This support member 500 includes a body 510 coupled and fixed to the inside of the legs 120, 210, 320, and 410 of the leg frame 100; 200; 300; 400; and a bridge 130; 230; 330; 430) and consists of a leaf spring 520 that is partially cut from the body 510 to form an elastic bend in the direction away from the bottom of the bridge due to external force, preferably toward the inside of the chair. there is. The leaf spring 520 preferably has an upper end 522 that is flat in the horizontal direction so that it can stably support the lower end of the bridge 130; 230; 330; 430.

This leaf spring 520 can be separated from the lower end of the bridge (130;230;330;430) by generating elastic bending by a predetermined external force while supporting the lower end of the bridge (130;230;330;430). For this purpose, the leaf spring 520 is a pressing portion that protrudes outward from each leg 120, 210, 320, 410 of the leg frame 100; 200; 300; 400 so as to apply an external force to at least one side. You can have (521).

Additionally, a limiting member 50 may be installed on the inner side of each leaf spring 520 corresponding to the support member 500 to limit elastic bending of the leaf spring. This limiting member 50 is coupled to the hinge points of each leg 120, 210, 320, 410 of the leg frame 100; 200; 300; 400 and the bridge 130; 230; 330; 430. It consists of a fixing part 51 and a limiting panel 52 extending downward from the fixing part and disposed to correspond to the leaf spring 520. In order to support the restoration of the leaf spring 520, the limiting panel 52 is preferably bent in a direction corresponding to the leaf spring 520 and has a protruding structure.

From this configuration, referring to FIG. 2, the upper end 522 of the leaf spring 520 is connected to each leg 120, 210, and 320 of the leg frame 100; 200; 300; 400 in the unfolded state of the chair. The lower end of the bridge (130;230;330;430) is supported so that (410) and the bridge (130;230;330;430) are not folded with respect to each other. In this state, when the pressing portion 521 of the leaf spring 520 is pushed in the inner direction of each leg 120, 210, 320, and 410, the upper end 522 of the leaf spring 520 is moved to the bridge ( The legs 120, 210, 320, 410 of the leg frame and the bridge 130; 230; 330; 430) are in a state where they can be folded around the hinge point. , and the chair can finally be folded.

Conversely, when the chair is unfolded, each leaf spring 520 is restored by elasticity so that the upper end 522 of the leaf spring 520 maintains the state of supporting the lower end of the bridges 130; 230; 330; 430. do.

Meanwhile, according to an exemplary form of the present invention, the above-described support member 500 includes the right leg 120 of the first leg frame 100 and the left leg 410 of the fourth leg frame 400 facing this. A first support member (500-1) and a fourth support member (500-4) are installed opposite each other, respectively, from the first support member (500-1) and the fourth support member (500-4). The upper end 522 of the leaf spring 520 may be separated from the lower end of each bridge 130 and 430 by simultaneously pressing the pressing portion 521 of the leaf spring 520.

In addition, a second support member 500-2 and a third support member 500 are provided on the left leg 210 of the second leg frame 200 and the right leg 320 of the third leg frame 300 facing it, respectively. -3) are installed opposite to each other, and the pressing portion 521 of each leaf spring 520 is pressed simultaneously from the second support member 500-2 and the third support member 500-3 to press the leaf spring 520. ) can be separated from the bottom of each bridge 230 (330).

Figures 6a to 6f sequentially show the folding process of the shape-changing foldable furniture according to the first embodiment of the present invention. First, as shown by the arrow "→ ←" in FIG. 6A, the leaf spring 520 of the first support member 500-1 and the leaf spring 520 of the fourth support member 500-4 are moved inward at the same time. After pushing the upper end 522 of each leaf spring 520 away from the lower end of each corresponding bridge 130 and 430, the chair is pushed to tilt to the right as shown in FIG. 6B. Here, the second lower hinge 42 and the fourth lower hinge 44 are provided as slide hinges as described above, so the first part coupled to the upper plate and the second part coupled to the bridge slide around the hinge axis to move relative to each other. By moving, tilting to the right becomes possible. In this case, the leaf spring 520 of the first support member 500-1 and the leaf spring 520 of the fourth support member 500-4 have their respective upper ends 522 of the bridges 130 and 430. It is separated from the bottom (see enlarged view of FIG. 6A) and remains caught on the side edge of each bridge 130 and 430 by elastic restoring force.

Next, as shown by the arrow "--> <--" in FIG. 6A, the leaf spring 520 of the second support member 500-2 and the leaf spring 520 of the third support member 500-3 is pushed inward at the same time so that the upper end of each leaf spring 520 separates from the lower end of each corresponding bridge 230 (330), and then the chair is tilted rearward as shown in FIG. 6C. Here, the third lower hinge and the fourth lower hinge 44 are provided as slide hinges as described above, so that tilting toward the rear is possible by sliding. In this case, the leaf spring 520 of the second support member 500-2 and the leaf spring 520 of the third support member 500-3 have their respective upper ends 522 of the bridges 230 and 330. It is separated from the bottom (see enlarged view of FIG. 6A) and remains caught on the side end of each bridge 230 and 330 by elastic restoring force.

In this state, by using the fourth leg 24 on which the fourth lower hinge 44 is formed as an axis, the first leg 21 in the diagonal direction is pushed rearward and brought together so that it overlaps, resulting in a front view of the folded state of FIG. 6D. As shown in the folded rear view of Figure 6e and the folded side view of Figure 6f, the chair can be folded flat.

Figures 7 to 11 show the configuration of a shape-shiftable foldable furniture according to a second embodiment of the present invention, Figure 7 is an upper perspective view with the chair unfolded, Figure 8 is a lower perspective view with the chair unfolded, and Figure 9 is a partially exploded perspective view. , Figure 10 is an overall exploded perspective view, and Figures 11a and 11b are the front view and plan view of Figure 7.

The second exemplary embodiment of the flexible foldable furniture according to the present invention will be described focusing on the chair-shaped furniture as shown. However, of course, the present invention is not limited to just the chair structure, but can also be applied to furniture for various other purposes.

In this embodiment, the shape-shifting foldable furniture is held by a square, flat top plate (1) and respective legs (2) supporting four corners (1a) of the top plate. In addition, the legs 2 supporting these four corner portions 1a include four leg frames 100; 200; 300; supporting the lower portions of the edge surfaces 1b in each direction of the top plate 1. 400) can be formed by connecting. Each leg frame (100;200;300;400) is shaped like an upright L shape. 'A shape or a reverse image of the letter ㅂ' It has a 'shape, and is formed into a generally L-shaped leg by connecting the four corner portions 1a of the upper plate 1 with hinges below.

Here, as in the first embodiment above, for convenience of explanation, the front leg frame of the chair is referred to as the first leg frame 100, the left leg frame is referred to as the second leg frame 200, and the right leg frame is referred to as the third leg frame ( 300), and the rear leg frame is referred to as the fourth leg frame 400.

Each leg frame (100;200;300;400) consists of two vertical legs (110,120) (210,220) (310,320) (410,420) and a bridge (130;230;330;430) connecting the upper parts of these legs. It is composed. According to this embodiment, the legs (110, 120) (410, 420) and the bridges (130) (430) are fixed so as not to rotate relative to each other, while the legs (210, 220) (310, 320) and the bridges (230) (330) are fixed to each other. They are each hinged to each other so that they can rotate relative to each other.

In addition, in order to connect the leg frame (100;200;300;400) and the top plate (1), between the edge surface (1b) of the top plate (1) in each direction and the bridges (130;230;330;430) of the leg frame. is connected with a hinge.

Here, the shape-variable foldable furniture is preferably configured to be folded from the unfolded state of Figure 7 to the flat state shown in Figures 12d to 12f by pushing it to the right according to the sequence of Figures 12a to 12c, which will be described later. To this end, each hinge is connected to all other hinges except the third upper hinge 33 connecting the bridge 330 of the third leg frame 300 and the top plate 1, preferably that of the first leg frame 100. A first upper hinge 31 connecting between the bridge 130 and the top plate 1, a second upper hinge 32 connecting between the bridge 230 and the top plate 1 of the second leg frame 200, The fourth upper hinge 34 connecting the bridge 430 of the fourth leg frame 400 and the top plate 1, the two legs 110 between the first leg frame 100 and the second leg frame 200 ) A first lower hinge 41 connecting 220, a second lower hinge 42 connecting the two legs 120 and 310 between the first leg frame 100 and the third leg frame 300. , and a third lower hinge 43 connecting the two legs 210 and 420 between the second leg frame 200 and the fourth leg frame 400, and the third leg frame 300 and the fourth leg. The fourth lower hinge 44 connecting the two legs 320 and 410 between the frame 400 is preferably configured as a slide hinge.

Meanwhile, in this embodiment, the slide hinge refers to a connection where the first part coupled to the upper plate and the second part coupled to the bridge slide and move relative to the hinge axis when rotated, as described in Example 1 above, The specific shape of this slide hinge can be configured with reference to the sliding hinge shown and described in FIG. 5 in Patent Publication No. 10-2019-0129182. The operation of the slide hinge in this embodiment will be described in detail below with reference to the chair folding process shown in FIGS. 12A to 12F.

The shape-variable foldable furniture of the present invention has legs 210, 320 and bridge 230 of each leg frame 200, 300 so that the four legs 2 do not fall and remain stable in the unfolded state as shown in Figure 7. A support member 500 may be provided to releasably support the space between the 330s.

This support member 500 supports the body 510, which is fixed to the inside of the legs 210 and 320 of the leg frame 200 and 300, and the lower ends of the bridge 230 and 330, and is supported by external force. It consists of a leaf spring 520 that is partially cut away from the body 510 to form elastic bending in a direction away from the bottom of the bridge, preferably toward the inside of the chair. The leaf spring 520 preferably has an upper end 522 that is flat in the horizontal direction so that it can stably support the lower ends of the bridges 230 and 330.

These leaf springs 520 can be separated from the lower ends of the bridges 230 and 330 by generating elastic bending by a predetermined external force while supporting the lower ends of the bridges 230 and 330. For this, the leaf springs 520 ) may have a pressing portion 521 protruding to the outside of each leg 210 and 320 of the leg frame 200 and 300 so as to apply an external force to at least one side.

Additionally, a limiting member 50 may be installed on the inner side of each leaf spring 520 corresponding to the support member 500 to limit elastic bending of the leaf spring. This limiting member 50 includes a fixing part 51 coupled to the hinge point of each leg 210, 320 of the leg frame 200, 300 and the bridge 230, 330, and a lower part from this fixing part. It consists of a limiting panel 52 that extends and is disposed in response to the leaf spring 520. In order to support the restoration of the leaf spring 520, the limiting panel 52 is preferably bent in a direction corresponding to the leaf spring 520 and has a protruding structure.

From this configuration, referring to FIG. 2, the upper end 522 of the leaf spring 520 is connected to each leg 210, 320 and the bridge 230 ( 330 supports the lower ends of the bridges 230 and 330 so that they do not fold against each other. In this state, when the pressing portion 521 of the leaf spring 520 is pushed in the inner direction of each leg 210 and 320, the upper end 522 of the leaf spring 520 is attached to the bridge 230 and 330. The legs 210 and 320 of the leg frame and the bridges 230 and 330 that are separated from the bottom are in a state where they can be folded around the hinge point, and thus the chair can finally be folded.

Conversely, when the chair is unfolded, each leaf spring 520 is restored by elasticity, so that the upper end 522 of the leaf spring 520 maintains a state of supporting the lower ends of the bridges 230 and 330.

Meanwhile, according to an exemplary form of the present invention, the above-described support member 500 includes the left leg 210 of the second leg frame 200 and the right leg 320 of the third leg frame 300 facing it. A second support member (500-2) and a third support member (500-3) are installed opposite each other, respectively, from the second support member (500-2) and the third support member (500-3). The upper end 522 of the leaf spring 520 may be separated from the lower end of each bridge 230 and 330 by simultaneously pressing the pressing portion 521 of the leaf spring 520.

Figures 12a to 12f sequentially show the folding process of the shape-changing foldable furniture according to the second embodiment of the present invention. Figure 12a shows the bridge 230 by the leaf spring 520 in the unfolded state before folding the chair. (330) shows the supported state. In this state, as shown by the arrow "→ ←" in FIG. 12B, the leaf spring 520 of the first support member 500-1 and the leaf spring 520 of the second support member 500-2 are moved inward at the same time. After pushing the upper end 522 of each leaf spring 520 away from the lower end of each corresponding bridge 230, 330, the chair is pushed to tilt rearward as shown in FIG. 12C. Here, except for the third upper hinge 31, the first, second, and fourth upper hinges 31, 32, and 34 and the first to fourth lower hinges 41 to 44 are all slide hinges as described above. Since the first part coupled to the top plate and the second part coupled to the bridge move relative to each other by sliding around the hinge axis, the chair can be tilted to the side and rear so as to be folded as shown in FIG. 12d.

In this case, the leaf spring 520 of the first support member 500-1 and the leaf spring 520 of the second support member 500-2 have their respective upper ends 522 of the bridges 230 and 330. It is separated from the bottom (see enlarged view of FIG. 12b) and remains caught on the side edge of each bridge 230 and 330 by elastic restoring force.

In this state, when the first leg 21 on which the first lower hinge 41 is located and the fourth leg 24 on which the fourth lower hinge 44 is located are pushed together in the diagonal direction, the folded front view of FIG. 12D is obtained. , the chair can be folded into a flat state as shown in the rear view in the folded state of Figure 12e and the side view in the folded state of Figure 12f.

The shape-variable folding furniture of the present invention as described above has all four edges of the top plate connected to the leg frame and hinges, which solves the existing problem of the top plate shaking due to the back legs being separated from the top plate, providing greater stability and durability. can increase.

In addition, according to the present invention, since the four edge surfaces of the top plate are located inside the leg frame in each direction, the top plate does not cover each leg, so it does not get in the way when unfolded, and various shape or structural changes are also possible.

In addition, although not shown, the shape-shiftable foldable furniture of the present invention may be configured to form a ledge surrounding the top plate by raising the height of the leg frames located around the top plate in each direction to be higher than the top plate. In addition, in this way, the height of the leg frames located around each direction of the top plate can be higher than the top plate, and two or more top plates can be installed to form a shelf or chest of drawers with several tiers of top plates.

Although various embodiments of the present invention have been described above, the contents described so far are merely illustrative of some of the preferred embodiments of the present invention, except as may appear in the claims attached below. It is not limited by the above. Accordingly, those skilled in the art will understand that many equivalent changes, modifications and substitutions can be made to the present invention without departing from the technical spirit and gist of the invention within the scope set forth in the claims below. It will have to be done.

1: Top plate
1a: corner part
1b: edge surface
2: legs
21: 1st leg
22: 2nd leg
23: 3rd leg
24: 4th leg
31: first upper hinge
32: second upper hinge
33: third upper hinge
34: fourth upper hinge
41: first lower hinge
42: second lower hinge
43: Third lower hinge
44: fourth lower hinge
50: limiting member
51: fixing part
52: limit panel
100: 1st leg frame
200: 2nd leg frame
300: Third leg frame
400: 4th leg frame
110,120,210,220,310,320,410,420: Leg
130,230,330,430: Bridge
500: Support member
510: body
520: leaf spring
521: presser
522: top
500-1: first support member
500-2: Second support member
500-3: Third support member
500-4: Fourth support member

Claims (5)

It is a shape-shifting foldable furniture maintained by a square flat top and four legs supporting the four corners of the top,
The legs supporting the four corners are formed in an L shape by connecting four leg frames supporting the lower portions of the edge surfaces in each direction of the top plate with hinges under the four corners of the top plate,
Each leg frame is composed of two vertical legs and a bridge connecting upper parts of the two legs, and in at least one leg frame, the two legs and the bridge are hinged so that they can rotate relative to each other,
The top plate and the leg frame are connected by hinges between the edge surfaces of the top plate in each direction and each bridge,
At least one leg frame further includes a support member for releasably supporting the expansion between the legs and the bridge,
The support member includes a body that is coupled and fixed to the inside of the legs of the leg frame, and a plate that supports the lower end of the bridge and is provided by being partially cut from the body to form elastic bending in a direction away from the lower end of the bridge by external force. Consisting of springs,
The leaf spring supports the lower end of the bridge so that the legs and bridge of each leg frame do not fold against each other when the furniture is unfolded. The upper part is flat in the horizontal direction so that it can be stably supported in close contact with the lower end of the bridge. Shape-variable folding furniture characterized by having a. According to clause 1,
The leaf spring is a shape-shifting foldable furniture, characterized in that it has a pressing portion protruding to the outside of each leg of the leg frame so as to apply an external force to at least one side. According to clause 1,
A limiting member is installed to limit elastic bending of the leaf spring in the inner direction of each leaf spring corresponding to the support member, and the limiting member includes a fixing part coupled to the hinge point of each leg of the leg frame and the bridge, and It is composed of a limiting panel extending downward from the fixing part and disposed to correspond to the leaf spring, wherein the limiting panel has a structure bent and protruding in a direction corresponding to the leaf spring to support restoration of the leaf spring. Characterized by shape-shifting folding furniture. According to clause 1,
a first upper hinge connecting the bridge of the first leg frame, which is the front leg frame of the furniture, and the top plate; a second upper hinge connecting the bridge of the second leg frame, which is the left leg frame of the furniture, and the top plate; and All other upper and lower hinges except the first lower hinge connecting the two legs between the first leg frame and the second leg frame, the first part coupled to one side and the second part coupled to the other side rotate along the hinge axis. Configurable foldable furniture, characterized in that it consists of slide hinges connected to move relative to each other by sliding to the center. According to clause 1,
Except for the third upper hinge connecting the bridge of the third leg frame, which is the right leg frame of the furniture, and the top plate, all other hinges are centered around the hinge axis when the first part coupled to one side and the second part coupled to the other side rotate. Configurable foldable furniture, characterized in that it consists of slide hinges connected to move relative to each other by sliding.