Foldable desk with foldable chair

The present invention relates to a foldable desk, in which a desk board is movable in front and back directions so as to fit a body shape of a user and a chair and a desk are completely foldable and overlap for space utilization, and a frame 50 of a desk board 10 is rotatably connected to a desk board support frame 60 through a connection rod 13, the desk board support frame 60 is bent at a right angle in a state where the desk board 10 is accurately positioned at a position, at which the desk board 10 exerts a function of a desk, and a first upper edge 62 of a desk board support frame having a larger length than a thickness of the desk board and a first upper edge 32 of the connection frame simultaneously support a bottom surface of the desk board 10, a connection rod 13 is shorter than a second upper edge 64 of the desk board support frame 60 coupled to the connection rod 13 to allow the desk board 10 to slide next to the first upper edge 62 of the desk board support frame, and the desk board 10 is bent downwardly at a right angle in the state where the desk board 10 has slide next to the first upper edge 62 of the desk board support frame, when a chair seat 40 is in an accurately positioned state, in which the chair seat 40 serves as a chair, a bottom surface of the chair sheet is supported to a support part 35 protruding to an inner side of a second upper edge 34 lower than the first upper edge 32 of the connection frame 30, and the chair sheet 40 is completely folded upwardly and overlap a backrest 20, and a backrest support frame 70 is foldable at a right angle so as to overlap the connection frame 30 in the state where the chair seat 40 is folded upwardly, and the protruding part 35 is positioned in a space between a first leg and a second leg 72 and 74 of the backrest support frame in the folded state of the backrest support frame 70.

TECHNICAL FIELD

The present invention relates to a foldable desk with a foldable chair, and particularly, to a foldable desk, in which a desk board is movable in front and back directions so as to fit a body shape of a user and a chair and a desk are completely foldable and overlap for space utilization.

BACKGROUND ART

An integrated desk, in which a chair and a desk are integrated, has a problem of occupying a large space when being not used and is stored as illustrated inFIG. 1. In this case, there is a problem in that it takes considerable delivery costs, and a wide storage is required for storing the integrated chair.

In the meantime, there is an integrated desk, in which a chair and a desk are foldable among the integrated desks, and Korean Utility Model No. 368207 discloses “Structure of Foldable Chair Provided with Desk” as the desk of the aforementioned kind. However, the foregoing desk has a complex structure which causes an increase in manufacturing costs, and it is impossible to adjust an interval between the desk and the chair so as to fit a body shape of a user, and further, an area of a support part is small and the desk is easily shaken in front and back directions, so that stability is insufficient.

SUMMARY OF THE INVENTION

The present invention has been made in an effort to provide a foldable desk, which has a simple structure and is easily manufactured, and in which a desk and a chair are completely foldable and overlap, so that a space required for a delivery and a storage is minimized, thereby decreasing delivery costs and storage costs.

An exemplary embodiment of the present invention provides a foldable desk with a foldable chair, the foldable desk including: a quadrangular desk board frame50which is attached onto a bottom surface of a desk board10shaped like a quadrangular plate and is formed of a pipe; a quadrangular desk board support frame60, which is connected to the desk board frame50, stands on a ground to be supported, and is formed of a pipe; a backrest support frame70, which is attached to a rear surface of a backrest20shaped like a quadrangular plate to support the backrest, includes a first leg and a second leg72and74, is formed of a pipe, and is shaped like an inverse U-shape; a chair seat40, which is shaped like a quadrangular plate and is rotatably connected to an intermediate upper edge76, the intermediate upper edge76being bent from lower ends of the first leg and the second leg72and74of the backrest support frame70upwardly at 180° and rising up to an intermediate height; and a connection frame30, which connects the desk board support frame60and the backrest support frame70, is formed of a pipe, stands on a ground, and is generally shaped like “U”, in which a frame50of the desk board10is rotatably connected to the desk board support frame60through a connection rod13, the desk board support frame60is bent at a right angle in a state where the desk board10is accurately positioned at a position, at which the desk board10exerts a function of a desk, and a first upper edge62of a desk board support frame having a larger length than a thickness of the desk board and a first upper edge32of the connection frame300simultaneously support the bottom surface of the desk board10, the connection rod13is shorter than a second upper edge64of the desk board support frame60coupled to the connection rod13to allow the desk board10to slide next to the first upper edge62of the desk board support frame, and the desk board10may be bent downwardly at a right angle in the state where the desk board10has slide next to the first upper edge62of the desk board support frame, when the chair seat40is in an accurately positioned state, in which the chair seat40serves as a chair, a bottom surface of the chair sheet is supported to a support part35protruding to an inner side of a second upper edge34lower than the first upper edge32of the connection frame30, and the chair sheet40is completely folded upwardly and overlap the backrest20, and the backrest support frame70is foldable at a right angle so as to overlap the connection frame30in the state where the chair seat40is folded upwardly, and the protruding part35is accurately positioned in a space between the first leg and the second leg72and74of the backrest support frame in the folded state of the backrest support frame70.

Another exemplary embodiment of the present invention provides a foldable desk with a foldable chair, the foldable desk including: a quadrangular desk board frame50which is attached onto a bottom surface of a desk board10shaped like a quadrangular plate and is formed of a pipe; a quadrangular desk board support frame60, which is connected to the desk board frame50, stands on a ground to be supported, and is formed of a pipe; a backrest support frame70, which is attached to a rear surface of a backrest20shaped like a quadrangular plate to support the backrest, includes a first leg and a second leg72and74, is formed of a pipe, and is shaped like an inverse U-shape; a chair seat40, which is shaped like a quadrangular plate and is rotatably connected to an intermediate upper edge76, the intermediate upper edge76being bent from lower ends of the first leg and the second leg72and74of the backrest support frame70upwardly at 180° and rising up to an intermediate height; and a connection frame30, which connects the desk board support frame60and the backrest support frame70, is formed of a pipe, stands on a ground, and is generally shaped like “U”, in which a frame50of the desk board10is rotatably connected to the desk board support frame60through a connection rod13, the desk board support frame60is bent at a right angle in a state where the desk board10is accurately positioned at a position, at which the desk board10exerts a function of a desk, and a first upper edge62of a desk board support frame having a larger length than a thickness of the desk board and a first upper edge32of the connection frame simultaneously support the bottom surface of the desk board10, the connection rod13is shorter than a second upper edge64of the desk board support frame60coupled to the connection rod13to allow the desk board10to slide next to the first upper edge62of the desk board support frame, and the desk board10may be bent downwardly at a right angle in the state where the desk board10has slide next to the first upper edge62of the desk board support frame, the desk board support frame60is foldable so as to overlap the connection frame30in the state where the desk board10is completely folded downwardly, and when the chair seat40is in an accurately positioned state, in which the chair seat40serves as a chair, a bottom surface of the chair sheet is supported to a support part35protruding to an inner side of a second upper edge34lower than the first upper edge32of the connection frame30, and the chair sheet40is completely folded upwardly and overlap the backrest20.

The chair seat40may be folded, the backrest support frame70may be folded so as to overlap the connection frame30, and then the desk board10, which is completely folded downwardly, and the desk board support frame60may be foldable so as to overlap the backrest support frame70.

The desk board10may be coupled to both vertical rods52and54of the desk board frame50by a pipe type connection rod12, and the connection rod12may be fixed to the desk board10, may be shorter than both vertical rods52and54, and may be movable along both vertical rods to enable the desk board10to move in front and back directions along both vertical rods.

A clip connection unit53may be installed in one vertical rod52of the desk board frame50, and the clip connection unit53may be coupled to the first upper edge32of the connection frame30in a clip type.

A second clip connection unit55may be installed in the other vertical rod54of the desk board frame50, and the clip connection unit55may be coupled to the leg63of the desk board support frame60in a clip type in the state where the desk board is folded.

A clip connection unit42coupled to the support part35in a clip type may be attached to the bottom surface of the chair seat40.

The foldable desk according to the present invention has a simple structure and occupies a minimum space in a folded state, so that it is possible to minimize delivery costs and repair and maintenance costs, and adjust the desk board so as to fit a body shape of a user, thereby considerably increasing convenience for the user. Further, the chair seat and the desk board may be completely coupled to the frame even in the state where the desk is folded, as well as the case where the foldable desk is used as a desk, thereby considerably improving stability.

DETAILED DESCRIPTION

FIG. 1is a perspective view of a foldable desk integrated with a chair according to the present invention, andFIGS. 2-1 to 2-8are perspective views illustrating processes of folding the foldable desk.

As illustrated inFIGS. 1 and 2-1 to 2-8, a quadrangular desk board frame50formed of a pipe is attached onto a bottom surface of a desk board10shaped like a quadrangular plate. A quadrangular desk board support frame60formed of a pipe is connected to the desk board frame50, and the support frame stands on the ground.

A backrest support frame70, which is also formed of a pipe and is shaped like an inverse U-shape, is attached to a rear surface of a backrest20shaped like a quadrangular plate to support the backrest, and the support frame70includes a first leg and a second leg72and74, and is bent from lower ends of the first leg and the second leg72and74upwardly at 180°, so that the first leg and the second leg72and74are connected to each other at an intermediate height that is a lower than that of the backrest to form an intermediate upper edge76, and a chair seat40shaped like a quadrangular plate is rotatably connected to the intermediate upper edge.

The backrest support frame70and the desk board support frame60are connected to each other through a connection frame30, which is formed of a pipe, and generally has a U-shape. The connection frame30stands on the ground, and is rotatable with respect to any one of or both the desk board support frame60and the backrest support frame70as necessary.

The frame50of the desk board10is rotatably connected to the desk board support frame60through a connection rod13(seeFIG. 2-3). The connection rod13may have a form accommodating the two pipes, which form the desk board frame50and the support frame60, in parallel.

As illustrated inFIG. 1, in the state where the desk board10is accurately positioned at a position exerting a function of the desk, the desk board support frame60forms a portion bent at a right angle. A length of the bent portion needs to be larger than a thickness of the desk board, and the reason thereof will be described below. An upper portion of the bent portion forms a first upper edge62of the desk board support frame, and a portion connected to the first upper edge62forms a first upper edge32of the connection frame30, and the two upper edges62and32simultaneously support the bottom surface of the desk board10(seeFIG. 2-2).

The connection rod13is shorter than a second upper edge64of the desk board support frame60coupled to the connection rod13to allow the desk board10to slide in a lateral direction that is a direction of an arrow A along the first upper edge62of the desk board support frame (seeFIG. 2-3). As illustrated inFIGS. 2-3 and 2-4, the desk board10is foldable downwardly, that is, in a direction of an arrow B, at a right angle in the state of sliding in the direction of the arrow (A) (seeFIG. 2-5). To this end, a length of a portion of the desk board support frame60bent at the right angle, that is, the first upper edge62of the desk board frame, needs to be larger than the thickness of the desk board. That is, when the desk board is completely folded, the desk board needs to be completely accommodated in the bent portion (seeFIG. 2-5).

As illustrated inFIG. 1toFIG. 2-5, when the chair seat40is in an accurately positioned state, in which the chair seat40serves as a chair, a second upper edge34lower than the first upper edge32of the connection frame30forms an inwardly protruding support part35, and a bottom surface of the chair seat is supported to the support part35.

As illustrated inFIG. 2-6, the chair seat40may be completely folded upwardly in a direction of an arrow C to overlap the backrest20.

Subsequently, in the state where the chair seat40is folded upwardly, the backrest support frame70may be folded at a right angle so as to overlap the connection frame30as illustrated inFIG. 2-7. In this state, the protruding part35is positioned in a space between the first leg and the second leg72and74of the backrest support frame, and subsequently, the desk board support fame60may be rotated in a direction of an arrow D in the state where the desk board10is completely folded downwardly to be folded so as to overlap the backrest support frame70.FIG. 2-8is a perspective view illustrating the state where the desk board and the chair seat are completely folded so as to overlap each other.

In the meantime, as illustrated inFIG. 2-3, the desk board10is coupled to both vertical rods52and54of the desk board frame50by a pipe-type connection rod12, and the connection rod12is fixed to the desk board10, and may be better to have a smaller length than that of both vertical rods52and54and be movable along both vertical rods. In this case, the desk board10is movable in front and back directions along both vertical rods, so that the desk board10is movable in the front and back directions so as to fit a body shape of a user (seeFIG. 3).

FIG. 3is a lateral view illustrating the state where the desk board10moves in the front and back directions, and the desk board10is moved in a direction of an arrow E with respect to both vertical rods52and54of the desk board frame50to adjust a gap between the desk board10and the backrest to fit the body shape of the user.

A circle ofFIG. 2-2is an enlarged view of a corner of the desk board frame50, and a clip connection unit53may be installed in one vertical rod52of the desk board frame50, and the clip connection unit53may be coupled to the first upper edge32of the connection frame in a clip type. When the clip connection unit53is coupled to the first upper edge32, the desk board10does not move and is fixed.

A second clip connection unit55having the same structure as that of the clip connection unit53is installed in another vertical rod54of the desk board frame50.FIG. 4is a perspective view ofFIG. 2-5viewed in another direction, and illustrates the state where the clip connection unit55is coupled to the leg63of the desk board support frame60in the clip type in the state where the desk board10is folded. In this case, the desk board in the folded state does not move and is fixed during the movement.

FIG. 5is a perspective view and a partially enlarged view illustrating the state where the chair seat40is coupled to or separated from the support part35, and a clip connection unit42coupled to the support part35in the clip type may be installed on the bottom surface of the chair seat40. When the chair seat is coupled to the support part through the clip connection unit42, the chair seat does not move, thereby securing stability.

In the meantime, in the aforementioned exemplary embodiment, both the backrest support frame70and the desk board support frame60are rotatable with respect to the connection frame30, but the present invention may be configured so that only any one of the backrest support frame70and the desk board support frame60is rotatable as necessary.

FIG. 6is a perspective view and a partially enlarged view of an exemplary embodiment, in which the desk board support frame60is fixed to the connection frame30so as not to be rotatable. As illustrated, when a connection part80of both frames30and60is coupled by a welding method, and the like, the desk board support frame60is prevented from being rotated. In this case, the desks, which are folded in the form of “” by folding only the backrests, of the present invention may overlap and be stored as illustrated inFIG. 7.

In contrast toFIG. 7,FIG. 8illustrates a structure, in which the backrest support frame70and the connection part82of the connection frame30are welded to fix both frames70and30so as not to rotate with respect to each other. In this case, the desks, which are folded in the form of “” by folding only the desk plates, of the present invention may overlap and be stored as illustrated inFIG. 9.

FIG. 10is a perspective view of an exemplary embodiment, in which wheels are provided to the foldable desk of the present invention. Wheels are attached to a bottom part of the desk of the present invention, and when a rotatable wheel92having no brake is attached to one side of the desk and a wheel94having a brake, which prevents the wheel from being rotated as necessary, is attached to an opposite side, it is possible to easily move and fix the desk.