KR20130051563A

KR20130051563A - Dual functional chair realizing dual functions by separated seat plates

Info

Publication number: KR20130051563A
Application number: KR1020110116764A
Authority: KR
Inventors: 전진한
Original assignee: 전진한
Priority date: 2011-11-10
Filing date: 2011-11-10
Publication date: 2013-05-21

Abstract

PURPOSE: A dual function chair showing a dual function by a separated seat plate is provided to have a chair function applicable to an office chair and to implement a bed function conveniently and comfortably. CONSTITUTION: A dual function chair showing a ducal function by a separated seat plate comprises a back(100) supporting the back of a seated user when the user is seated; a seat plate(200) supporting the hips of human; and legs(300) supporting the seat plate. The seat plate is divided into two plates in the vertical direction to the direction that a user sits, and comprises a front seat plate and a rear plate. The front seat plate and the rear seat plate contact each other at the same height and are integrated when the chair is used in the conventional chair function in which a user seats on the seat plate of the chair in contact with the hips and puts legs on the ground.

Description

Dual Functional Chair Realizing Dual Functions by Separated Seat Plates}

The present invention relates to a chair, and more particularly, to separate a seat on which a person sits, consisting of a front seat and a rear seat, attach them to use as a function of a normal chair, and separate them at appropriate intervals for extra beds The present invention relates to a dual function chair that implements a dual function by a separate seat plate that can be used as a function.

A chair is a tool used for a person to sit on. The chair is typically provided with a backrest supporting a person's back, a seat plate supporting a person's hips, a leg supporting a seat plate, and an armrest. The back of the chair is at an approximately 90 degree angle with the seat plate, but can be flipped back for human convenience. The angle at which the backrest is flipped varies from product to product. A chair having an extra bed function has a function of completely tilting the backrest at 180 degrees, that is, the backrest is horizontal to the seat plate. The chair having an extra bed function also has the leg and foot rests at an angle of about 90 degrees downward with respect to the seat plate when used as a chair, and when used as an extra bed it is stretched out and level with the seat plate. Such an extra bed chair is convenient in that it has a dual function of a chair and an extra bed, but when used as a chair, the use of the chair is limited because the leg and foot support parts cause inconvenience in use.

On the other hand, there is a chair provided with a footrest to put the foot, in this chair footrest is used only to be able to put the foot comfortably in a sitting state, it is not used to support the function of an extra bed. Therefore, there has not been a product that practically realizes the function of an extra bed in an office chair.

Specifically, Patent Publication No. 10-0624193 (registered on September 07, 2006) discloses a leisure chair. These leisure chairs can be inserted or withdrawn from the inside or outside of the large diameter seat connector tube to adjust the length of the seat support according to the user's body structure to relax more comfortably will be. This patent does not impart the function of an extra bed to the chair by adjusting the length of the seat support, but merely adjusts the length of the seat support slightly according to the user's body structure. However, the seat support is inserted into the seat cloth so that a person can sit, this sheet cloth should be provided with the longest length of the seat support bar, if the sheet support is shorter than that comes with the inconvenience of folding the sheet cloth accordingly. Therefore, it is difficult to use the chair as an extra bed due to such inconvenience. Moreover, it is more difficult to apply this structure to office chairs rather than folding leisure chairs.

Korean Utility Model Publication No. 1999-0038513 (published Oct. 25, 1999) discloses a bed and armchair. This includes a bed that is stored in the bottom space of the chair seat plate, which functions as a chair in the state where the bed is stored in the bottom space of the seat plate and performs a bed function and other functions in a state where the bed is exposed outside. However, there is a limitation that this cannot be applied to an office chair.

Registered Utility Model Publication No. 20-0295431 (registered on November 04, 2002) discloses a footrest device for a chair. This is to adjust the front and rear length as well as the height of the footrest to allow the user to take several postures when sitting and working for a long time to reduce the fatigue of the operator and improve the work efficiency. However, the structure applied here is difficult to use to support the bed function.

Patent Registration No. 10-0998817 (Registration No. 30.2010) is a slide withdrawal or withdrawal to the lower portion of the foldable fishing chair so that users who enjoy long-term fishing can enjoy fishing in a comfortable position as needed Disclosed is a fishing chair having a slideable legrest for supporting a user's leg by forming a leg rest. Such a chair is convenient because it provides a bed function and at the same time, but there is a limitation that it is difficult to apply to a non-folding office chair.

Registered Utility Model Publication No. 20-0340248 (registered on Jan. 19, 2004) is located under the seat of the chair and is connected to the front or rear conveying frame and the foot support frame inserted into the connecting frame and conveyed forward or rearward. Through a configuration including a, discloses a multi-stool provided with a foot support plate to enable the withdrawal and withdrawal according to the user's selection. By this configuration, the blood supplied from the heart is smoothly circulated to the legs and feet, thereby giving a function of reducing fatigue. Therefore, such a structure can be utilized to support an extra bed function, but the height of the seat plate and the footrest plate of the chair is different, so when using the extra bed is inconvenient. In addition, such a structure is difficult to apply to an office chair. On the other hand, Korean Utility Model Registration No. 20-0355128 (registered on June 24, 2004) discloses a multifunctional chair, which is a more convenient improvement of the design of the above registration utility model, and is configured so that the backrest can be flipped backward. Therefore, the role of the simple bed will also be able to serve. However, the above-mentioned inconveniences in relation to the footrest still exist, and there is still a limitation that it is difficult to apply to an office chair.

The present invention has been made to solve the above problems of the prior art. Accordingly, it is an object of the present invention to provide a dual function chair in which an extra bed function is conveniently and comfortably implemented as well as a chair function applicable to an office chair.

The dual function chair of the present invention for achieving the above object is to implement a dual function by a separate seat plate, the back plate for supporting the back of the person sitting when the person sits, the seat plate for supporting the hips of the person and the seat plate It includes supporting legs. Here, the seat plate is divided into two in the vertical direction with respect to the direction in which the person sits, consisting of a front seat plate and a rear seat plate, wherein the front seat plate and the rear seat plate is a person's legs in contact with the buttocks of the chair seat When used as a function of a conventional chair to lay down on the ground is to be integrated in contact with each other at the same height, the person backs up or fully tilt the back of the chair so that the angle between the back of the chair and the seat plate is 180 degrees When used as a function of a bed or rollaway bed that partially leans the back of the chair and lie down completely or obliquely so that is greater than 90 degrees and less than 180 degrees, the front seat is positioned at the same height apart from the rear seat Characterized by the stable mounting of the legs It shall be.

The front seat plate and the rear seat plate each include a frame made of steel, wood or plastic and a cushion member placed on the frame, wherein the chair connects the front seat frame to be spaced apart from the rear seat frame. It is preferable to include.

According to one specific aspect according to the invention, the connecting means is a sliding pipe which is fixedly coupled to the front seat plate frame and the rear seat plate connecting piece having a through hole through which the sliding pipe is fixedly coupled under the rear seat frame; It includes, the sliding pipe may be connected to pass through the through hole of the rear seat plate connecting piece.

A plurality of coupling grooves are formed at regular intervals in a connection region of the sliding pipe connecting the rear seat plate connecting piece, and a coupling protrusion is formed in the rear seat plate connecting piece in the through hole of the rear seat plate connecting piece, and the coupling protrusion and the It is preferable that the separation degree of the front seat plate and the rear seat plate is adjusted by the coupling grooves.

A front seat plate connecting piece is installed under the front seat plate frame, and the sliding pipe is fixedly coupled to the front seat plate connecting piece.

According to another specific aspect of the present invention, the connecting means is fixedly coupled to the rear seat plate frame, the rail groove is fixedly coupled to the rail and the front seat plate frame formed in the longitudinal direction, and fitted into the rail groove of the rail It may be to include a rail bar coupled to the jersey.

A plurality of coupling grooves are formed at regular intervals in the coupling region of the rail groove of the rail coupled with the rail bar, and the coupling bar is formed in the rail bar, and the front seat plate is coupled by the coupling protrusion and the coupling groove. It is preferable that the degree of separation of the rear seat plate is adjusted.

A front seat plate connecting piece is installed under the front seat plate frame, the rail bar is fixedly coupled to the front seat plate connecting piece, a rear seat plate connecting piece is installed under the rear seat plate frame, and the rail is fixed to the rear seat plate connecting piece. It is preferable to combine.

According to another specific aspect according to the invention, the connecting means is adapted to coincide with the sliding pipe as a sliding pipe extending from the front seat plate frame in the seating direction of the seat plate and the rear seat plate frame arranged in the seating direction of the seat plate. And a sliding receiving pipe having a hollow, and the sliding pipe may be inserted into the sliding receiving pipe to adjust a distance between the front seat plate and the rear seat plate.

A plurality of coupling grooves are formed at regular intervals in a coupling region of the sliding pipe to be coupled to the sliding receiving pipe, and coupling protrusions are formed in the sliding receiving pipe, so that the front is coupled by the coupling protrusion and the coupling groove. It is preferable that the degree of separation between the seat plate and the rear seat plate is adjusted.

In the dual function chair of the present invention, it is preferable that the Velcro adhesive cloth is coupled to each other on the surfaces of the front seat plate cushion member and the rear seat plate cushion member that face each other. In addition, the front end portion of the front seat plate cushion member is provided with a frame and a hinge shaft for coupling with the front seat plate frame, the front seat cushion member is coupled to the upper cushion member and the lower cushion member in all or part thereof by the hinge shaft. The upper cushion member may be rotated forward about the hinge axis to extend the cushion member forward.

According to another specific aspect of the present invention, the front seat plate and the rear seat plate each include a frame made of steel, wood or plastic and a cushion member placed on the frame, wherein the front seat frame and the rear seat plate The frame is integral or formed independently of each other and then coupled to each other, the front seat cushion member is composed of an upper cushion member and a lower cushion member in all or part thereof, and in the upper cushion member and the front seat frame A coupling upper layer frame is installed, and a hinge shaft is installed at a front end portion of the upper cushion member, and the upper cushion member extends the front seat plate forward as the upper frame rotates forward by the rotation of the hinge shaft. It may be to.

In the dual-function chair of the present invention, the leg of the chair is mounted to one support portion for supporting the seat plate under the center portion of the seat plate, a branch portion coupled to the support portion and branched therefrom, and a plurality of branches respectively. It includes a wheel, the chair is the height of the seat plate is adjusted by adjusting the height of the support, it is preferable that the wheel is moved by the cloud.

The dual function chair according to the present invention is composed of a front seat and a rear seat by separating a seat on which a person sits, and using them as a function of a conventional chair by attaching them, and using them as a function of an extra bed by separating them at appropriate intervals. Thereby providing user convenience and comfort. The dual function chair of the present invention is also applicable to an office chair.

1 is a view schematically showing the use of a dual function chair according to an embodiment of the present invention with the front and rear seats spaced at appropriate intervals.
FIG. 2 is a view schematically illustrating the use of the dual function chair of FIG. 1 in a state in which the front seat plate and the rear seat plate are in contact with each other; FIG.
3 is a partial side cross-sectional view showing a coupling state of the front seat and the rear seat in the dual function chair of FIG.
4 is a view illustrating the coupling between the frame of the front seat plate and the sliding pipe coupled thereto in the dual function chair of FIG.
FIG. 5 is a view illustrating a structure of a connecting piece coupled to a frame of a rear seat plate and a structure of a sliding pipe coupled thereto in the dual function chair of FIG. 1.
6 is a view illustrating a structure of one kind of rail groove and rail bar as a connecting means for connecting the frame of the front seat and the frame of the rear seat in the dual function chair of the present invention.
7 is a view illustrating the structure of the rail groove and the rail bar of another type as a connecting means for connecting the frame of the front seat and the frame of the rear seat in the dual function chair of the present invention.
8 is a view illustrating a structure of another connecting means for connecting the frame of the front seat plate and the frame of the rear seat plate in the dual function chair of the present invention.
9 is a view showing the structure and function of the front seat plate employed in the dual function chair according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a view schematically showing the use of the dual function chair according to an embodiment of the present invention with the front and rear seats spaced apart at suitable intervals, and FIG. 2 is a front seat plate of the dual function chair of FIG. 1. Figure 3 is a view schematically showing the use in a state in contact with the rear seat, Figure 3 is a partial side cross-sectional view showing a coupling state of the front seat and the rear seat in the dual function chair of Figure 1, Figure 4 is a double FIG. 5 is a view illustrating a coupling between a front seat frame and a sliding pipe coupled thereto in a functional chair, and FIG. 5 illustrates a structure of a connecting piece coupled to the rear seat frame in the dual function chair of FIG. 1 and a structure of a sliding pipe coupled thereto. The illustrated figure.

As shown in the figure, the dual function chair 10 according to the present invention is the backrest 100 for supporting the back of the person sitting when the person sits, the seat plate 200 for supporting the buttocks of the person, the seat plate 200 And a supporting leg 300. In addition, the chair 10, the armrest 500 is usually installed.

The backrest 100 of the chair 10 is flipped back for convenience of use, and may be completely tilted up to an angle that is completely horizontal with the seat plate 200, that is, an angle of 180 degrees, and between 90 and 180 degrees. It may only be flipped to an angle. This backrest 100 allows the chair 10 to be used as an extra bed.

The leg 300 of the chair 10 may be composed of four independent legs, but a chair for adjusting the height of the chair by the operation of a lever mounted under the chair is frequently used as an office chair. Chair is preferred. The leg 300 of the office chair has one support 310 that supports the seat 200 under the center of the seat 200. The support 310 is to adjust the length by the operation of the lever mounted under the chair, whereby the height of the chair is adjusted. Since the structure and operation of the support for enabling the height adjustment of the chair are well known and various products are sold, its detailed description will be omitted here.

The leg 300 of the chair also includes branches 320 coupled to the support 310 and branched therefrom, each with a wheel 330 mounted thereon. The wheel 330 is rolled in contact with the ground, the movement of the chair 10 is easily performed by the cloud of the wheel 330.

As shown in FIG. 1, the seat plate 200 is divided into two in the vertical direction with respect to a direction in which a person sits, and is divided into a front seat plate 210 and a rear seat plate 220. Here, the direction in which the person sits refers to the direction of the person's gaze when the person sits in a chair and looks forward. Therefore, the front seat plate 210 is located in the human eye direction, the rear seat plate 220 is located in the opposite direction, that is, the backrest 100 side. The front seat plate 210 and the rear seat plate 220 are to maintain the same relative height to each other at all times. That is, even if the height of the chair is adjusted by the support part 310 of the leg 300, the height of the front seat plate 210 and the rear seat plate 220 are changed in the same way, so that the height is adjusted.

The front seat plate 210 and the rear seat plate 220 may be arranged so as to be spaced at appropriate intervals according to the user's choice, so that they are spaced apart so that the backrest 100 is completely 180 degrees or 90 degrees to 180 degrees. The user may lie partially or at an angle on it, with the user partially lying at an angle between them. In such a case it can be said that the chair 10 is used as an extra bed.

On the other hand, as shown in Figure 2, the front seat plate 210 and the rear seat plate 220 may be integrated in contact with each other. In this case, the chair 10 is used as a function of a conventional chair in which a user contacts the hip plate with the seat plate 200 and lowers his leg on the ground. When used in this chair function, the front seat plate 210 and the rear seat plate 220, in particular their cushioning members 214 and 224, are mutually compatible to further consolidate the engagement of the front seat plate 210 and the rear seat plate 220. Velcro adhesive fabric is bonded to each other on the opposite side is preferably mounted. Although the rear seat velcro adhesive 228 is shown in FIG. 1, the front seat velcro adhesive is not shown in the figures due to the viewing angle shown.

The size of the front seat plate 210 and the rear seat plate 220 corresponds to the seat plate size of a conventional chair when they are in contact with each other, the widths of the left and right lengths are equal to each other, and the lengths of the front and rear sides may be appropriately selected. The length of the front seat plate 210 is preferably about one third of the total length. When the length is about that length, the front seat plate 210 is separated from the rear seat plate 220, and the user does not give much inconvenience when the user lays down while the backrest is folded back.

As shown in FIG. 3, the front seat plate 210 includes a front seat plate frame 212 and a front seat plate cushion member 214 placed thereon, and the rear seat plate 220 includes a rear seat plate frame 222 and And a rear seat plate cushion member 224 placed thereon. Frames 212 and 222 may be formed of steel, wood or plastic, the cushion members 214 and 224 are not particularly limited as long as the cushion member 214 and 224 can provide comfort by feeling cushioned when the user sits. It is covered by the cover. The front seat plate connecting piece 216 and the rear seat plate connecting piece 226 are mounted under the front seat plate frame 212 and the rear seat plate frame 222, respectively. Separately, the chair 10 is a connecting means for connecting the front seat plate frame 212 spaced apart from the rear seat plate frame 222, and includes a sliding pipe 600. Sliding pipe 600 is fixedly coupled to the front seat plate connecting piece 226, the shape of the cross section is not particularly limited to polygons such as circles, squares, pentagons, etc., but a circle or a square is preferred, the inside is cold or empty Both forms are possible, but the hollow form is advantageous in terms of light weight.

The rear seat plate connection piece 226 has a through hole 229 through which the sliding pipe 600 can pass, and the cross-sectional shape of the through hole 229 is the same as the cross-sectional shape of the sliding pipe 600. Thus, the sliding pipe 600 penetrates the through hole 229 and is connected to the rear seat plate connecting piece 226. The front seat plate connecting piece 216 is mounted to be coupled to it under the front seat frame 212 and fixedly coupled to the sliding pipe 600, which coupling is preferably by welding but may be achieved by other means.

The sliding pipe 600 adjusts the separation distance between the front seat plate 210 and the rear seat plate 220 by being inserted into the through hole 229 of the rear seat plate connecting piece 226 and fixed to the rear seat plate connecting piece 226. Even if not coupled to the user lying completely or obliquely on the chair and put the legs or feet on the front seat 210, the sliding pipe 600 is slightly inclined due to its weight, the front seat 210 by a weak external force It is not moved from this rear seat plate 220. However, before the user raises the leg, the sliding pipe 600 may be moved by a weak external force, which may give some inconvenience. In order to solve the inconvenience, the coupling between the sliding pipe 600 and the rear seat connection piece 226 is prevented. Can be formed.

To this end, as shown in FIG. 5, a plurality of coupling grooves 610 are formed in the connection region of the sliding pipe 600 connected to the rear seat plate connection piece 226. In addition, the engaging projection is formed in the region of the rear seat plate connecting piece 226 in the through hole 229 of the rear seat plate connecting piece 226. Thus, the sliding pipe 600 and the rear seat plate connecting piece 226 may be coupled to each other and the degree of separation of the front seat plate 210 and the rear seat plate 220 may be adjusted by the coupling of the coupling protrusion and the coupling groove. Coupling protrusion formed on the rear seat plate connecting piece 226 should be able to engage with the coupling grooves formed in the sliding pipe 600 while allowing the sliding pipe 600 to slide through the through hole 229, the rear seat plate connecting piece Rather than being fixedly formed at 226, it is preferred to be fluidly supported by a spring as shown in FIG.

Specifically, the coupling protrusion forming member 700 is mounted to the rear seat plate connecting piece 226 in order to install the coupling protrusion supported by the spring on the rear seat plate connecting piece 226. To this end, the rear seat plate connecting piece 226 has at least one through hole 229 formed therein and at least one through hole 230 connecting the outside thereof. 5 illustrates an example in which two through holes 230 are formed so that two coupling protrusions are mounted on the rear seat plate connecting piece 226. Coupling protrusion forming member 700 is coupled to the coupling protrusion 710, the coupling protrusion and the body of the coupling protrusion 720, the spring 730, the coupling protrusion body having a polygonal shape, such as circular or rectangular cross-section ( 740 and spring latch nut 750. The portion of the coupling protrusion 710 connected to the coupling protrusion body 720 may be larger than the cross-sectional shape of the coupling protrusion body 720, but preferably coincides with the cross-sectional shape of the coupling protrusion body 720. All or part of the engaging projection body 720 is formed with a screw region 725 to be screwed with the spring locking nut 750. The coupling protrusion body receiving box 740 is formed with a through hole 742 into which the coupling protrusion body 720 is inserted, and a cover (not shown) that can be opened and closed on the opposite side thereof is formed.

First, the spring engaging nut 750 is fastened to the screw region 725 of the coupling protrusion body 720. Then, the cover of the coupling protrusion body receiving box 740 is opened and the coupling protrusion body 720 is inserted into the through hole 742. Then, the coupling protrusion 710 is exposed to the outside of the coupling protrusion body accommodating body 740 together with a portion of the coupling protrusion body 720, and the spring engaging nut 750 and a portion of the coupling protrusion body 720 accommodate the coupling protrusion body. 740 is housed inside. Insert the spring 730 having a suitable elasticity to the received coupling protrusion body 720 and closes the cover. Then, the spring engaging nut 750 is in close contact with the wall of the storage box 740 by the elasticity of the spring in the coupling protrusion body receiving box 740. An empty space exists between the cover of the coupling protrusion body receiving box 740 and the end of the coupling protrusion body 720, and the spring 730 surrounds the empty space and surrounds the coupling protrusion body 720. It is supported by the lid of the holder 740 and the spring engaging nut 750.

In this state, a portion of the coupling protrusion 710 and the coupling protrusion body 720 is inserted into the through hole 230 of the rear seat plate connecting piece 226, and the coupling protrusion forming member 700 is coupled to the rear seat plate connecting piece 226. . Then, the coupling protrusion 710 is protruded into the through hole 229 of the rear seat plate connection piece 226.

In this state, sliding the sliding pipe 600 by applying a suitable force into the through hole 229 of the rear seat plate connecting piece 226 in the sliding pipe 600 region without the coupling groove 610 pushes the engaging projection 710 The sliding pipe 600 may be slid because it hides toward the engaging protrusion body receiving box 740. When the sliding pipe 600 continues to slide and the coupling protrusion 710 meets the coupling groove 610, the sliding pipe 600 returns to the through hole 229 of the rear seat plate connecting piece 226 by the elasticity of the spring 730 and the sliding pipe 600. It is coupled with the coupling groove 610 of the. If no greater force is applied in this state, the sliding pipe 600 will remain coupled to the rear seat plate connecting piece 226. When the user applies more force, the coupling protrusion 710 is pushed back so that the sliding pipe 600 can slide.

On the other hand, as another embodiment of the present invention, instead of the rear seat plate connecting piece 226 having the through hole 229 and the sliding pipe 600 as a connecting means, a rear seat plate connecting piece having a rail groove and a rail bar as a variant thereof may be used. Can be. This example is illustrated in FIGS. 6 and 7. That is, Figure 6 is a view illustrating a structure of one kind of rail groove and rail bar as a connecting means for connecting the frame of the front seat and the frame of the rear seat in the dual function chair of the present invention, Figure 7 is a view of the present invention In the dual-function chair as a connecting means for connecting the frame of the front seat and the frame of the rear seat is a view illustrating the structure of the rail groove and the rail bar of another type.

The rear seat plate connecting piece 226 having the rail groove 231 shown in FIG. 6 is still substantially the same as described above since it still has the through hole 229. It is different from the point that the rail groove 231 is formed extending from the through-hole 229, which is to act as a guide and the sliding role of the rail bar (600 '). The rail bar 600 ′ is substantially the same as the sliding pipe 600.

On the other hand, Figure 7 is a difference in that the through-hole is not formed in the rear seat plate connecting piece 226 and also to support the rail bar 600 'inserted into the rail groove 231, the rear seat plate connecting piece 226 is a bent portion ( 232).

Another embodiment of the invention is shown in the drawings. That is, Figure 8 is a view illustrating a structure of another connecting means for connecting the frame of the front seat and the frame of the rear seat plate in the dual function chair of the present invention. As a connecting means in the present invention, the sliding pipe 600 ″ extending from the front seat plate frame 212 in the seating direction of the seat plate 200 and the sliding seat as rear seat plate frame 222 disposed in the seating direction of the seat plate 200. A sliding receiving pipe 223 having a hollow coinciding with 600 " is used. At this time, the sliding pipe 600 "is inserted into the sliding receiving pipe 223 to connect the front seat plate 210 and the rear seat plate 220, and the distance between them is adjusted. Such a sliding pipe 600" and sliding As described above, the accommodation pipe 223 may be provided with coupling grooves and coupling protrusions to form a more rigid coupling.

Further embodiments of the present invention are also shown in the drawings. That is, Figure 9 is a view showing the structure and function of the front seat plate employed in the dual function chair according to another embodiment of the present invention. The front seat plate 210 and the rear seat plate 220 include frames 212 and 222 made of steel, wood, or plastic, respectively, and cushion members 214 and 224 placed on the frame. The front seat plate frame 212 and the rear seat frame 222 may be integral or formed independently of each other and then coupled to each other.

The front seat plate cushion member 214 is composed of all or part of the upper cushion member 214-1 and the lower cushion member 214-2. In the upper cushion member 214-1, an upper frame 215 that is engaged with the front seat plate frame 212 is provided. A hinge shaft 217 is provided at the front end portion of the upper cushion member 214-1. The upper cushion member 214-1 extends the front seat plate 210 forward as the upper frame 215 rotates forward by the rotation of the hinge shaft 217.

The upper frame 215 is coupled to the front seat frame 212 in a frame with a hinge axis 217, the coupling method is directly coupled to the front seat frame 212 (the lower figure of Figure 9) and the lower layer It is divided into a manner of coupling through the lower frame (215 ') installed in the cushion member (214-2) (upper figure in FIG. 9). In the former case, the lower frame may not be provided in the lower cushion member 214-2. In the latter case, the lower frame 215 ′ is formed to engage the front seat plate frame 212.

The upper frame 215 includes a hinge axis 217 and a frame 215-1 that is horizontal, with a hinge axis 217 disposed within the frame 215-1. Coupling between the hinge shaft 217 and the frame 215-1 is made through the bearing, the upper frame 215 can be rotated forward and backward in the state in which the hinge shaft 217 is fixed. In order to allow this rotation of the upper frame 215 and to allow it to be coupled to the lower frame 215 'or the front seat frame 212, a hinge axis is cut at both ends or portions of the frame 215-1. After exposing 217, a coupling arm 240 is coupled between the hinge shaft 217 and the lower frame 215 ′ or the front seat plate frame 212. That is, the hinge shaft 217 is a frame 212- that is horizontal with the hinge axis 217 of the lower frame 215 'and the horizontal frame 215'-1 or the front seat frame 212. 1) is coupled by the coupling arm 240. At this time, the coupling arm 240 is coupled to the hinge shaft 217 through the lower cushion member 214-2.

The front seat plate 210 of the above structure may be applied to the above-described structure formed to be spaced apart from the rear seat plate 220. Then, in addition to the separation distance between the front seat plate 210 and the rear seat plate 220 by sliding of the sliding pipe 600, an extension effect by the rotation of the upper cushion member 214-1 of the front seat plate 210 is added, The front seat plate 210 may be disposed farther from the rear seat plate 220.

DESCRIPTION OF SYMBOLS 10 Chair 100 Backrest 200 Seat 210 Front seat 212 Front seat frame 214 Front seat cushion member 216 Front seat connection piece 220 Rear seat 222 Rear seat frame 224 Rear seat cushion member 226 Rear seat connection piece 300 : Leg 310: Supporting part 320: Branching part 330: Wheel 500: Armrest 600: Sliding pipe 610: Coupling groove 700: Coupling protrusion forming member 710: Coupling protrusion 720: Coupling protrusion body 725: Screw area 730: Spring 740: Coupling protrusion body Compartment 750: Spring latch nut

Claims

A chair comprising a back support for supporting a back of a seated person, a seat plate for supporting a buttocks of a person, and a leg for supporting the seat plate when a person is seated,
The seat plate is divided into two in the vertical direction with respect to the direction in which the person sits, and consists of a front seat plate and a rear seat plate, wherein the front seat plate and the rear seat plate have a person in contact with the buttocks of the seat plate of the chair and the legs of the person to the ground When used as a function of a conventional chair to be laid down, it is integrated in contact with each other at the same height, the person completely tilts the back of the chair or the angle of 90 degrees so that the angle between the back of the chair and the seat plate is 180 degrees When used as a function of a bed or extra bed that partially tilts the back of the chair and lie down completely or obliquely so that the chair is large and smaller than 180 degrees, the front seat is positioned spaced apart from the rear seat by the same height to stabilize the human leg. Characterized in that the mounting Dual function that implements a dual function by ridoen stalls chairs.

The method of claim 1,
The front seat plate and the rear seat plate each include a frame made of steel, wood or plastic and a cushion member placed on the frame, wherein the chair connects the front seat frame to be spaced apart from the rear seat frame. Dual function chair to implement a dual function by a separate seat plate comprising a.

The method of claim 2,
The connecting means includes a sliding pipe fixedly coupled to the front seat frame and a rear seat plate connecting piece fixedly coupled to the rear seat frame and having a through hole through which the sliding pipe passes, wherein the sliding pipe includes the rear seat plate. Dual function chair to implement a dual function by the separated seat plate, characterized in that connected through the through hole of the connecting piece.

The method of claim 3,
A plurality of coupling grooves are formed at regular intervals in a connection region of the sliding pipe connecting the rear seat plate connecting piece, and a coupling protrusion is formed in the rear seat plate connecting piece in the through hole of the rear seat plate connecting piece, and the coupling protrusion and the The dual function chair to implement a dual function by the seat plate, characterized in that the separation of the front seat plate and the rear seat plate is adjusted by the coupling of the coupling grooves.

The method of claim 3,
The front seat plate connecting piece is installed under the front seat frame, the sliding pipe is a dual function chair to implement a dual function by the separated seat plate, characterized in that fixedly coupled to the front seat plate connecting piece.

The method of claim 2,
The connecting means is fixedly coupled to the rear seat plate frame, the rail groove is fixedly coupled to the rail formed in the longitudinal direction and the front seat plate frame, characterized in that it comprises a rail bar is fitted into the rail groove of the rail coupled Function chair which embodies dual function by separate seat plate made.

The method according to claim 6,
A plurality of coupling grooves are formed at regular intervals in the coupling region of the rail groove of the rail coupled with the rail bar, and the coupling bar is formed in the rail bar, and the front seat plate is coupled by the coupling protrusion and the coupling groove. Dual-function chair to implement a dual function by the seat plate, characterized in that the separation of the rear seat plate is controlled.

The method according to claim 6,
A front seat plate connecting piece is installed under the front seat plate frame, the rail bar is fixedly coupled to the front seat plate connecting piece, a rear seat plate connecting piece is installed under the rear seat plate frame, and the rail is fixed to the rear seat plate connecting piece. Dual function chair to implement a dual function by a separate seat plate, characterized in that coupled to.

The method of claim 2,
The connecting means includes a sliding pipe extending from the front seat plate frame in a seating direction of the seat plate and a sliding receiving pipe having a hollow coinciding with the sliding pipe as the rear seat plate frame disposed in a seating direction of the seat plate. The dual function chair to implement a dual function by the seat plate, characterized in that the distance between the front seat plate and the rear seat plate is adjusted by the sliding pipe is inserted into the sliding receiving pipe.

10. The method of claim 9,
A plurality of coupling grooves are formed at regular intervals in a coupling region of the sliding pipe to be coupled to the sliding receiving pipe, and coupling protrusions are formed in the sliding receiving pipe, so that the front is coupled by the coupling protrusion and the coupling groove. Dual function chair to implement a dual function by the seat plate, characterized in that the distance between the seat and the rear seat is adjusted.

The method according to any one of claims 2 to 10, wherein
Dual-function chair to implement a dual function by the seat plate, characterized in that the Velcro adhesive cloth is coupled to each other on the surface facing each other of the cushion member of the front seat and the cushion member of the rear seat.

The method according to any one of claims 2 to 11, wherein
The front end portion of the front seat cushion member is provided with a frame and a hinge shaft for coupling with the front seat frame, and the front seat cushion member is coupled to the upper cushion member and the lower cushion member by the hinge shaft in all or part thereof. It has a structure that the dual function chair to implement a dual function by the seat plate, characterized in that to extend the cushion member to the front by rotating the upper cushion member forward about the hinge axis.

The method of claim 1,
The front seat plate and the rear seat plate each include a frame made of steel, wood or plastic and a cushion member placed on the frame, wherein the front seat frame and the rear seat frame are integrally formed or formed independently of each other. The front seat cushion member is composed of an upper cushion member and a lower cushion member at all or part thereof, and the upper cushion member is provided with an upper frame coupled with the front seat frame, and the upper cushion A hinge shaft is installed at the front end portion of the member, and the upper cushion member has a dual function by the seat plate, which extends the front seat plate forward as the upper frame rotates forward by the rotation of the hinge shaft. Dual function chair to embody.

The method according to any one of claims 1 to 13, wherein
The leg of the chair includes one support portion for supporting the seat plate under the center portion of the seat plate, a branch portion coupled to the support portion and branched from the plurality of branches, and wheels mounted to each of the branch portions, wherein the chair includes the said The height of the seat plate is adjusted by adjusting the height of the support, the dual function chair to implement a dual function by the seat plate, characterized in that the wheel is moved by a cloud.