KR100467439B1 - Handy stool - Google Patents

Abstract

The present invention relates to a chair, and more particularly, to a portable chair that can be easily used outdoors and portable. According to the present invention, there is provided a chair including a seat plate provided for a person to sit on and one leg supporting the seat plate. The legs may be coupled to or separated from the seat plate. According to the present invention, there is provided a chair including a seat plate provided for a person to sit on, and one or more legs supporting the seat plate and capable of engaging and detaching the seat plate. The seat plate may be provided with a handle which can be mounted.

Description

Portable Chair {HANDY STOOL}

The present invention relates to a chair, and more particularly, to a portable chair that can be easily used outdoors and portable.

Occasionally you will have to wait a long time for outdoor activities. In particular, it takes a long time to use a ride in the amusement park, such as Seoul Land, Everland, Disneyland, or to wait to watch various performances. In this case, it is inconvenient to stay tired for a long time. What is needed to solve this inconvenience is a portable chair.

In general, a portable chair is a structure in which high and light weight support legs are crossed in a 'X' shape and hinged therein to fix the support legs so that the support legs can be collected inward. However, such a conventional portable chair is usually made small in order to make it easy to carry, and it is inconvenient because of its low height. In addition, it was inconvenient to fold the chair and reopen it in a new seat if you need to move.

It is an object of the present invention to provide a chair which is portable and of sufficient height to be comfortable. Another object of the present invention is to provide a chair that can be easily moved to a seated state. Another object of the present invention is to provide a chair that is compactly folded. Another object of the present invention is to provide a chair which is small in size and light in weight, which is easy to carry and can move quickly.

1 is a perspective view showing an unfolded state of a portable chair according to a first embodiment of the present invention, showing a part of the seat plate cut away

FIG. 2 is a front view showing the deployed state of the portable chair of FIG. 1, and is a view showing the inside by cutting a part of a seat plate and a leg; FIG.

Figure 3 is a front view of the fixing part of the seat and the leg of the portable chair of Figure 1, showing the action of the locking member

4 is a front view showing a state in which the legs of the portable chair of FIG. 1 are separated from the seat plate and the first and second members of the legs are separated;

5 (a) and 5 (b) are front and rear views respectively showing the folded form of the portable chair of FIG. 1, and FIG. 5 (a) shows the seat plate in cross section.

FIG. 6 is a cross-sectional view of a leg of the portable chair according to the second embodiment of the present invention, except for a coupling part coupled to a seat plate; FIG.

7 is an exploded perspective view of a portion in which the first member, the coupling member, and the second member of the leg of FIG. 6 are coupled;

FIG. 8 is a front view of the legs of the portable chair according to the third embodiment of the present invention, except for a coupling part coupled to a seat plate.

9 is an exploded perspective view of a portion where the first member, the coupling member, and the second member of the leg of FIG. 8 are coupled;

10 is a front view of a leg of a portable chair according to a fourth embodiment of the present invention, in which the first leg member is cut away to show the inside, but the coupling member is cut away to show a cross-sectional view;

Figure 11 (a) is a perspective view of the coupling member of Figure 10, (b) is a view showing the inside of the cutting the coupling member of (a).

12 is a perspective view showing a coupling portion of the seat plate and the legs according to the fifth embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: chair 20: seat

28: handle 30: portable strap

39: fixed belt 40: leg

50: first leg member 51: fixing member

53: coupling groove 60: insertion member

70: locking lever 72: locking projection

80: second leg member 90: coupling member

94: coupling lever 95: coupling screw

97: compression spring 99: rubber band

100: Link 343: Home

345: coupling rod 512: height adjustment

711: auxiliary protrusion

According to one aspect of the present invention, a seat plate provided to allow a person to sit on, and is fixed to the seat plate to support the seat plate, one end of which is fixed to the seat plate and the other end is a single rod-shaped leg contacting the floor A chair is provided.

The seat plate is provided with a first locking structure so that the leg and the seat plate are coupled and detachable so that the leg is provided with a second locking structure that is caught by the first locking structure, and the first locking structure is the first locking structure. The two locking structures may be hooked to each other so that one end of the leg may be fixed to the seat plate. The first locking structure of the seat plate may include a fixing part provided below the seat plate, and the fixing part may include a first locking part. The second locking structure may include a rotatable locking lever, and the locking lever may be provided with a first hook portion that is caught by the first locking portion.

The fixing part 34 protrudes below the seat plate, and the first locking part is provided by a groove 343 formed at one side of the protruding fixing part 34.

The first hanging part may be provided by a locking protrusion 72 protruding from one end of the locking lever 70.

The leg may further include an elastic member for applying a force to the locking lever so that the coupling between the first locking portion and the first hanging portion is maintained.

The locking lever may include an auxiliary protrusion that pushes the fixing part such that the first hook part is separated from the first locking part and the upper end of the leg is away from the fixing part.

The fixing part is provided with a second catching part, and the leg is provided with a second catching part that is caught by the second catching part, after combining the second catching part and the second hanging part, and between the first catching part and the first hanging part. It can be configured to be a combination.

The second locking portion may be a coupling rod 345 provided in the fixing portion, and the second hook portion may be a coupling groove 52 provided in the main body of the leg.

The first locking structure of the seat plate may include a fixing portion having a protrusion, and the second locking structure of the leg may include a screw extending to the outer surface in a circumferential direction and engaged with the protrusion.

In order to connect the seat plate and the leg so that the seat plate and the leg do not fall more than a predetermined distance, one end is fixed to the seat plate and the other end is fixed to the leg may further include a connecting member extending long.

The legs may have at least two rod-shaped unit leg members which may be joined to one another at their ends.

One of the two adjacent unit leg members is provided with a stop so that the end portion is inserted into the other one, but more than a predetermined portion of the end is inserted,

An elastic member extending to pass through a center of the plurality of unit leg members and having both ends fixed between two unit leg members at both ends of the plurality of unit leg members to apply a force in a direction in which the two unit leg members at both ends are close to each other; It may be provided.

The unit leg member may be indented with respect to another adjacent unit leg member,

A coupling member may be provided to fix the two adjacent unit leg members at an arbitrary position.

The end of the unit leg member for accommodating the other unit leg member therein is divided into a plurality of threaded branches, and provided with a nut coupled to the thread as the coupling member,

The nut may have an inner diameter of a portion smaller than the outer diameter of the unit leg member accommodating the other unit leg members so that the fork is pushed inwards so that the received unit member and the fork are in close contact with each other.

An end portion of the unit leg member for accommodating the other unit leg members therein may be divided into a plurality of forks, and include a ring-shaped ring member surrounding the forks as the coupling member, and a lever for reducing the inner diameter of the ring member. Can be.

The unit leg member coupled to the seat plate of the unit leg members may include an elastic member that absorbs an impact.

The coupling member is a columnar member inserted into a unit leg member for accommodating the other unit leg members therein, and has at least one clearance formed in a longitudinal direction separating into a plurality of forks and a conical portion having a smaller diameter and having a diameter. The section until it is smaller includes a through hole drilled in the longitudinal direction in which the female thread is formed,

One end portion of the other unit leg member accommodated in the unit leg member is fixed to the opening bar to be inserted into the through hole of the coupling member to open the coupling member, the opening rod is a female screw formed in the through hole of the coupling member A male screw corresponding to the upper side may be formed and a conical portion corresponding to the conical portion provided in the through hole may be provided.

A buffer unit may be further provided between the opening bar and the unit leg member to which the opening bar is fixed.

A support shaft having one end having a flange fixed to the opening rod and the opposite end coupled to the unit leg member in such a manner as to be retractable but not to be separated;

One end may include a compression coil spring fitted to the support shaft to be constrained to the flange and the opposite end to the end of the unit leg member.

The seat plate may further include a handle.

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

1 and 2 are a perspective view and a front view showing the deployed state of the portable chair according to the first embodiment of the present invention. 1 and 2, the portable chair 10 includes a seat plate 20 in the form of a rectangular plate provided for a person to sit on, and a leg 40 extending downward from the center of the bottom surface of the seat plate 20. Equipped. The seat plate 20 includes a flat plate portion 22 and opposing front and rear walls 24 and 25 which extend slightly downward from the front and rear ends of the plate portion 22, respectively.

1, 2, and 5 (b), the handles 28 are provided on both sides of the seat plate 22 so that they can be sunk. The handle 28 made of a thin circular rod member includes a handle 283 and two engaging portions 281 and 282 extending in parallel from both ends of the handle 283, respectively. Both ends of the handle portion 283 are bent downwardly to extend slightly, respectively, and then connected to the coupling portions 281 and 282. Accordingly, the handle 283 is located slightly above the two engaging portions 281 and 282. This is to make it easier for the user to grasp the handle 283. The ends of the two engaging portions 281 and 282 are each bent inward and slightly extended to form the stops 284 and 285. The stops 284 and 285 are caught by the coupling member 26 to be described later so that the handle 28 is not separated from the seat plate 20. The two coupling parts 281 and 282 are guided by the coupling member 26 parallel to the front and rear walls 24 and 25 of the seat plate 20 and coupled to the bottom of the seat plate 20. Coupling members 26 provided two by one coupling portion are curved portions 261 provided to surround coupling portions 281 and 282, and straight portions 262 extending outward from both ends of the curved portions 261. It is provided. The coupling member 26 is fixed to the seat plate 20 by a coupling screw 263 fitted to the straight portion 262. The handle 28 coupled as described above may be inserted until the handle 283 is caught by both ends of the seat plate 20, and may be removed until the stops 284 and 285 are caught by the coupling member 261. . The user can easily move the position by holding the handle 283 after removing the handle 28 to a proper position in a sitting state.

Referring to Figure 1, the edge portion of one side end of the seat plate 20 is provided with a ring 32 is provided so that the portable hand strap 30 is tied. After folding the chair, the user can easily carry the chair 10 by holding the handle strap 30 tied to the hook 32.

1 and 2, a leg fixing part 34 to which a leg 40 to be described later is fixed is provided at the center of the bottom surface of the flat plate 22 of the seat plate 20. The first leg rest 36 and the link connecting portion 38 are provided on both sides of the leg fixing portion 34, and the second leg rest 37 is provided next to the link connecting portion 38 (Fig. 5 ( b) see also). One end of the fixing band 39 is fixed between the first leg support 36 and the fixing part 34. The leg fixing part 34 includes a base part 341 protruding low from the bottom of the flat plate part 22 in a rectangular shape, and side walls 342 arranged side by side from both sides of the base part 341. The two side walls 342 are formed to be parallel to the front and rear walls 24 and 25 of the seat plate 20. On one side of the base portion 341 in which the side wall 342 is not provided, a groove 343 extending in the longitudinal direction formed over the entire width is formed. The groove 343 is inserted with a locking projection 72 of the locking member 70 to be described later. Opposite side of the groove 343 is provided with a thin circular coupling rod 345 connecting between the two side walls (342). The coupling rod 345 is fitted with a coupling groove 52 of the leg 40 to be described later.

The link connecting portion 38 is formed to protrude in a square shape from the bottom surface of the flat plate portion 22. One side portion of the link 100, which will be described later, is rotatably coupled to the hinge 101 at two sides facing the front and rear walls 24 and 25 of the seat plate 20 from the link connecting portion 38, respectively. The first leg pedestal 36 and the second leg pedestal 37 are formed to protrude from the bottom surface of the flat portion 22, and as shown in FIG. 5, the legs are supported when the leg 40 is folded. Referring to Fig. 5, the fixing band 39 is a coupling member (for example, Velcro) having a detachable end thereof to fix two members 50 and 80 of the separated legs 40 when the legs 40 are folded. And snap buttons) are coupled to the underside of the seat plate 20. Although not shown, in this embodiment, Velcro tape is used as a detachable coupling member of the fixing band 39. That is, the two corresponding members of the Velcro tape are fixed to the end of the fixing strap 39 and the bottom surface of the seat plate 20, respectively. The present invention is not limited thereto. Any detachable coupling member can be used.

1 and 2, the leg 40 includes a first leg member 50 having one end coupled to the seat plate 20, one end coupled with the first leg member 50, and an opposite end thereof to the ground. The second leg member 80 is provided. The first leg member 50 includes a fixing member 51 coupled to the fixing portion 34 of the seat plate 20 and an insertion member 60 into which a portion of the first leg member 50 is inserted.

The fixing member 51 includes a coupling part 511 having a square pillar shape extending upward and downward, and a height adjusting part 512 having a circular tube shape extending downward from the coupling part 511. One side of the end of the coupling portion 511 is provided with a coupling groove 52, the opposite side is provided with a hinge mounting portion 518 and a spring groove 515. The hinge mounting portion 518 is provided to protrude slightly from the outer surface of the coupling portion 511, the locking lever 70 to be described later to the hinge mounting portion 518 is rotatably coupled. A spring groove 515 is provided below the hinge mount 518. The spring groove 515 is a space provided to accommodate the compression spring 519 therein and is opened to insert the pressing protrusion 732 of the locking lever 70 to be described later. One end of the compression spring 519 is coupled to the auxiliary plate 517 provided in contact with the pressing projection 732. The coupling part 511 is inserted between the two side walls 342 of the fixing part 34 at the end of the seat plate 20, and the fixing part below the seat plate 20 into the coupling groove 52 of the coupling part 511. The coupling rod 345 of 34 is fitted.

1 and 2, the locking lever 70 coupled to the hinge mounting portion 518 of the fixing member 51 by the hinge 514 extends toward the end of the coupling portion 511 about the hinge 514. The working part 71 and the operation part 73 extended to the opposite side of the working part 71 are provided. The acting portion 71 is provided such that the end thereof extends slightly more than the end of the coupling portion 511. The action part 71 includes a locking protrusion 72 provided at an end and an auxiliary protrusion 711 provided between the locking protrusion 72 and the hinge 514. The locking protrusion 72 is fitted into the groove 343 of the fixing part 34 below the seat plate 20 so that the fixing member 51 is not separated from the fixing part 34. Two auxiliary protrusions 711 are formed to face each other along the outer surface to surround the coupling portion 511. The auxiliary protrusion 711 is positioned such that the side facing the locking protrusion 72 is adjacent to the end of the side wall 342 of the fixing part 34. The auxiliary protrusion 711 acts when the fixing member 51 is separated from the fixing part 34. The action will be described later in detail. The operation unit 73 includes an inclined surface 731 facing the coupling portion 511, and is inclined away from the outer surface of the coupling portion 511 toward the end. The inclined surface 731 is provided with a pressing protrusion 732 inserted into the spring groove 515 of the coupling portion 511. The end of the pressing protrusion 732 is in contact with the auxiliary plate 517 in the spring groove 515. The compression spring 519 pushes the pressing protrusion 732 outward. This force prevents the locking projection 72 from falling out of the groove 343 of the fixing portion 34, so that the leg 40 is fixed to the seat plate 20 while maintaining the deployed state. However, the present invention is not limited to the structure of the joint separation between the leg and the seat plate, and other coupling structures may be used.

1 and 2, the height adjusting portion 512 of the fixing member 51 is a circular tube, the end of which is open. The height adjusting unit 512 is provided with a plurality of height adjusting fixing holes 513 positioned vertically. The fixing projection 61 of the insertion member 60 to be described later is inserted into one of the plurality of fixing holes 513, the insertion member 60 and the fixing member 51 is coupled. The height of the whole chair 10 is determined according to the position of the fixing hole 513 into which the fixing protrusion 61 is fitted.

The fixing member 51 and the seat plate 20 are connected by a link 100. Both ends of the link 100 are hingedly coupled to the link connecting portion 38 of the seat plate 20 and the side of the coupling portion 511 of the fixing member 51, respectively. However, the present invention is not limited to the link of the fixing member 51 and the seat plate 20. Other forms of coupling means such as chains can be used.

1 and 2, both ends of the insertion member 60 into which the upper part is fitted into the fixing member 51 are open in the form of a circular tube. Insertion member 60 is provided with a fixing projection 61 provided on the upper side. This fixing projection 61 is installed in the insertion member 60 and is pressed into the configuration and is configured to protrude out when released. Although not shown, the fixing projection 61 is coupled to the insertion member 60 by the compression spring to be wanderable for this purpose will be understood by those skilled in the art. The lower end of the insertion member 60 is slightly open. This is to allow a part of the second member 80 to be inserted through the gap. The insertion member 60 is inserted into the height adjusting part 512 of the fixing member 51 at the end where the fixing protrusion 61 is provided. The inserted insertion member 60 has a fixing protrusion 61 fitted into one of the plurality of fixing holes 513 of the height adjusting part 512 to be fixed. The height of the chair 10 changes depending on the position of the fixing hole 513 into which the fixing protrusion 61 is fitted.

1 and 2, the second member 80 is in the form of a circular tube, the upper end of which is open and the lower end of which is closed by a cover 82. The upper portion of the second leg member 80 is recessed slightly inward. The upper portion of the second leg member 80 collected inwardly is inserted below the insertion member 60 with its interior open. Then, when the outer surface of the closed upper portion of the second leg member 80 and the inner surface of the inclined lower portion of the insertion member 60 are not in contact with each other, the second leg member 80 is no longer inserted into the inner portion. An empty member of the leg 40 is provided with an elastic member 99 that receives a tensile force. In this embodiment, a rubber band is used as the elastic member. One end of the rubber band 99 is fixed to the cover 82 of the second leg member 80, the opposite end is fixed to the bottom surface of the height adjuster 512 of the fixing member 51. By the pulling force of the rubber band 99, the first leg member 50 and the second leg member 80 are easily coupled. However, the present invention is not limited to the elastic band as the elastic member. Any spring can be used as long as it is elastic. The force of the rubber band 99 is suitably enough to separate the second leg member 80 from the first leg member 50 by human force.

Now, the folding process of the portable chair will be described in detail with reference to FIGS. 3, 4 and 5. First, as shown in FIG. 3, when the operation part 73 of the locking lever 70 is pressed, the locking protrusion 72 at the end of the action part 71 is separated from the groove 343 of the fixing part 34. At the same time, the auxiliary protrusion 711 of the acting portion 71 pushes the end surface of the fixing portion 34 and the leg 40 relatively rotates about the coupling rod 345 of the fixing portion 34. When the leg 40 is removed from the coupling rod 345 in this state, the leg 40 is completely separated from the seat plate 20 as shown in FIG. 4. In addition, in FIG. 2, when the second leg member 80 of the leg 40 is pulled, the rubber band 99 inside the leg 40 is stretched so that the second leg member 80 is removed from the first leg member 50. And separated as shown in FIG. Rotating the leg 40 completely separated through the process of Figures 3 and 4 using the link 100 can be folded as shown in FIG. Referring to FIGS. 5A and 5B, the first leg member 50 and the second leg member 80 of the leg 40 are folded in parallel with the seat plate 20 side by side. One side of the first leg member 50 and the second leg member 80 is supported by the first leg rest 36 of the seat plate 20 and the opposite side of the second member 80 is attached to the second leg support 37. Supported. In addition, the first member 50 and the second member 80 are fixed so as not to move by the fixing band 39 provided with the Velcro tape to keep the folded state. In FIGS. 4 to 5, the first leg member and the second leg member are separated from each other in order to conveniently show the respective members, but in practice, the two leg members 50 and 80 are mutually separated by the action of the rubber band 99. Will be stuck.

In order to develop the folded chair, the folding process described above may be reversed. That is, in the folded state shown in FIG. 5, when the fixing band 39 is released and the first member 50 is rotated using the link 100, the state shown in FIG. 4 is obtained. When the second leg member 80 is coupled with the first leg member 50 before or after the state of FIG. 4, the leg is completed. Next, as shown in FIG. 3, the coupling rod 345 of the fixing part 34 is inserted into the coupling groove 52 of the leg 40. Finally, when the locking protrusion 72 of the locking lever 70 is inserted into the groove 343 of the fixing part 34, the seat plate 20 and the leg 40 are fixed so that the chair 10 is maintained in a deployed state. .

6 illustrates a leg of the portable chair according to the second embodiment of the present invention. Referring to FIG. 6, the leg 40a includes an upper first leg member 50a and a lower second leg member 80a. ). The first leg member 50a and the second leg member 80a are coupled by the coupling member 90. The first leg member 50a includes an upper fixing member 51a and a lower insertion member 60a. The fixing member 51a and the insertion member 60a are coupled by the coupling nut 620. The fixing member 51a includes a shock absorbing portion 550 and a coupling portion located on the shock absorbing portion 550 although not shown. This coupling part has the same structure as the coupling part 511 of the first leg member 50 of the first embodiment, and thus the detailed description thereof will be omitted. The buffer part 550 is provided with a groove in which the upper part is blocked and the lower part is open. A thread is formed on the outer surface of the buffer part 550 so that the coupling nut 620 to be described later is coupled. The compression spring 552 is installed in the shock absorbing portion 550. One end of the compression spring 552 is constrained to the bottom surface of the shock absorbing portion 550, and the opposite end is constrained to one end of the insertion member 60a, which will be described later, to strongly push the insertion member 60a. This compression spring 552 reduces the impact transmitted to the ground and the seat plate.

Insertion member (60a) is in the form of a circular tube extending up and down, the upper portion is formed with an annular flange portion 62 protruding the outer surface and the thread is formed on the outer surface of the lower portion. The upper flange portion 62 is inserted into the groove of the buffer portion 550 so that the end thereof contacts the compression spring 552. In this state, the insertion member 60a is coupled so as not to be separated from the inside of the shock absorbing portion 550 by the coupling nut 620. One end of the coupling nut 620 is formed with a stepped portion 621 provided to narrow the inner diameter. Coupling nut 620 is coupled to the outer surface of the buffer portion 550 so that the stepped portion 621 is in contact with the open end of the buffer portion 550. At this time, the flange portion 62 of the insertion member 60a inserted into the shock absorbing portion 550 is caught by the stepped portion 621 of the coupling nut 620 and is not separated. Referring to Figure 7, the lower end of the insertion member (60a) is provided with a plurality of forked 601 divided by the gap provided in the vertical direction (the longitudinal direction of the insertion member). The upper part of the branch 601 is formed with a thread. Each branch 601 is spaced apart from each other at a distance by a gap, and this separation state continues to the end. Therefore, when the force pushing the respective branches 601 inwards, the gap between each branch 601 can be narrowed and the inner diameter can be narrowed.

Referring to Figure 6, the second leg member (80a) is in the form of a circular tube extending up and down, the upper part is fitted into the insertion member (60a) is fixed and the lower end is closed with a cover (82a). The outer diameter of the second leg member 80a is made smaller than the inner diameter of the insertion member 60a so as to be insertable. 6 and 7, the insertion member 60a and the second leg member 80a are coupled by the coupling member 90. Coupling member 90 is similar to the coupling nut 620 described above. However, the inner surface is retracted so that the inner diameter decreases from the middle to the lower side, and there are no threads in this section. This is for the inner surface having a small inner diameter to push each fork 601 of the insertion member 60a inward as the coupling member 90 is pushed up to bring the fork 601 and the second leg member 80a into close contact. . The second leg member 80a and the inserting member 60a which are in close contact with each other are fixed not to move. When the coupling member 90 is released, the second leg member 80a can be freely moved. In this state, the height of the chair can be adjusted by placing the second leg member 80a at an appropriate position and tightening the coupling member 90 again. In addition, when folding the chair, the second leg member 80a may be completely pushed into the insertion member 60a, and then the coupling member 90 may be tightened to reduce the overall length of the leg.

Figure 8 shows the legs of a portable chair according to a third embodiment of the present invention. Referring to FIG. 8, the leg 40b includes an upper first leg member 50b and a lower second leg member 80b. The first leg member 50b and the second leg member 80b are coupled by the coupling member 90a. Since the first leg member 50b has the same structure as that of the first leg member 50a (see FIGS. 6 and 7) in the second embodiment, except that threads are not formed at the bottom, detailed description thereof is omitted. do. Since the second leg member 80b also has the same structure as the second leg member 80a (see FIGS. 6 and 7) in the second embodiment, detailed description thereof will be omitted.

8 and 9, the coupling member 90a includes a ring-shaped ring member 92, a lever 94, and a connecting rod 96 connecting the lever 94 and the ring member 92. do. 9, the ring member 92 has a circular portion 921 slightly open in a spaced apart gap, and two straight portions 922 and 923 extending in a straight line side by side from both ends of the circular portion 921 to the outside. It is provided. The two straight portions 922 and 923 are spaced apart at a distance. The connecting rod 96 penetrates the two straight portions 922 and 923. One side of the connecting rod 96 is formed with a screw thread is coupled to the nut 961 and the opposite side is coupled to the lever 94 and the hinge 962 to be described later. That is, one 922 of the two straight portions 922 abuts the nut 961 and the other 923 abuts the lever 94. The lever 94 is coupled to the connecting rod 96 by a hinge 962 to be rotatable. An edge around the hinge 962 of the lever 94 abuts a straight portion 923. The edge portion of the lever 94 around the hinge 962 is generally round in shape, and the length from the hinge 962 to the longitudinal edge 941 of the lever 94 is the length of the lever 94 in the hinge 962. It is larger than the length to the edge 942 in the direction perpendicular to the direction. This is for the fixing to be made by the rotation of the lever 94.

That is, in the state shown in Fig. 9, since the short edge 942 contacts the straight portion 923 from the hinge 962, the two straight portions 922 and 923 are kept apart. In this state, the ring member 92 is inserted into the first leg member 50b, the second leg member 80b is inserted into the first leg member 50b, and the lever 94 is rotated in the direction of the arrow. As the long edge from 962 contacts the straight portion 923, the two straight portions 922 and 923 are brought into close contact with each other, and at the same time, the inner diameter of the circular portion 921 is reduced. In this case, each branch 601b of the lower portion of the first leg member 50b is pushed in close contact with the second leg member 80b and is fixed as shown in FIG. 8. By adjusting the second leg member 80b at an appropriate position and tightening the lever 94 of the coupling member 90a, the length of the chair can be adjusted. In addition, when folding the chair, the second leg member 80b may be completely inserted into the first leg member 50b and then fixed to reduce the overall length of the leg. The handle side of the lever 94 has a rounded shape so as to match the shape of the circular portion 921 of the ring member 92 when fixed. The ring member is preferably fixed to one of the branches 601b.

Although not shown in detail, it will be understood by those skilled in the art that a configuration in which the second leg member does not completely fall out in the embodiment shown in FIGS. 6 to 9 is possible.

10 illustrates a leg of a portable chair according to a fourth embodiment of the present invention. Referring to FIG. 10, the leg 40c includes an upper first leg member 50c and a lower second leg member 80c. As shown, the first leg member 50c and the second leg member 80c are coupled to the upper portion of the second leg member 80c by fitting into the first leg member 50c. The first leg member 50c is not shown as a hollow cylindrical member, but the upper end is coupled to the seat plate of the chair.

The second leg member 80c includes a cylindrical body 81c, a shock absorbing portion 85c and an engaging portion 87c provided at an upper end of the main body 81c. The shock absorbing portion 85c includes a coil spring 851 and a support shaft 852. One end of the coil spring 851 is in contact with the upper end of the main body 81c, and the opposite end is in contact with the flange 853 of the support shaft 852 described later. The support shaft 852 is cylindrical with a diameter smaller than that of the main body 81c. The support shaft 852 is fitted into the coil spring 851. One end of the support shaft 852 is inserted into the upper end of the main body 81c, and a flange 853 is provided at the end-to-end end to restrain the coil spring 851. Although not shown in detail, the support shaft 852 may be inserted inward while one end thereof is not caught inside the main body 81c. In other words, it is coupled to the main body 81c so that it is possible to stand in and out. Those skilled in the art will understand that such a coupling structure can be formed. By the structure of this shock absorbing part 85c, the coil spring 852 always exerts a force so that the flange 853 of the support shaft 852 and the main body 81c may mutually separate.

The engaging portion 87c includes an opening bar 871 and a coupling member 875 fitted to the opening bar 871. Opening rod 871 is formed to extend in the longitudinal direction from one end of the flange 853 of the support shaft 852 is provided. In the middle of the opening rod 871 is provided a truncated cone having an inclined surface 872. The bottom of the truncated cone is large in diameter and the diameter above the inclined surface 872 is small. Further, a thread 873 is formed at the lower portion of the truncated cone. A locking flange portion 873 is provided at the end of the opening rod 871. The engaging flange portion 873 catches the stepped portion 8771 provided in the through-hole 876 of the coupling member 875 described later to prevent the coupling member 875, once assembled, from being easily detached from the opening rod 871. .

10 and 11, the coupling member 875 has a cylindrical shape, and a through hole 876 is provided at the center thereof. In the middle of the through-hole 876 is a truncated conical portion provided with an inclined surface 877, the inclined surface 877 has a large diameter and a thread 878 is formed, the inclined surface 877 has a small diameter through hole, Immediately above, the stepped part 8771 is provided to increase the diameter slightly. The engaging flange portion 873 of the opening bar 871 is caught by the stepped portion 8771 so that the coupling member 875 is not easily separated. Referring to Figure 3 (a), the first gap 879 formed from the top to the bottom to divide the coupling member 875 in two, and formed from the bottom to the top to divide the coupling member 875 in two The second gap 880 is provided. The first gap 879 and the second gap 880 form a right angle. The upper portion of the coupling member 875 may be opened in the direction of the arrow by the first gap 879. The lower portion of the coupling member 875 may be opened in the direction of the lower arrow by the second gap 880. The outer diameter of the coupling member 875 is large enough to fit loosely into the inner hole of the first leg member 50c.

Referring to FIG. 10, the coupling member 875 is pushed into the opening rod 871 of the second leg member 80c. After that, the second leg member 80c is pushed in. At this time, the outer surface of the coupling member 875 enters while slightly touching the inner surface of the first leg member 50c. When the second leg member 80c is rotated at an appropriate position, the coupling member 875 is in place by the frictional force of the outer surface, and is advanced by the action of the threading rod 871 thread, and eventually, the inclined surface 872 of the opening rod 871. And the inclined surface 877 of the coupling member 875 meet and rotate the opening rod 871 further, the inclined surface 872 of the separation rod 871 passes through the inclined surface 877 of the coupling member 875 and the coupling member ( 875). By doing so, the upper and lower portions of the coupling member 875 are opened as shown by arrows in Fig. 11A, respectively. The coupling member 875 thus opened is in close contact with the inner surface of the first leg member 50c to fix the second leg member 80c to the first leg member 50c. Through the configuration of the buffer portion 85c and the coupling portion 87c, the shock can be absorbed and the overall length of the leg can be adjusted.

12 illustrates a coupling structure of the seat plate and the legs according to the fifth embodiment of the present invention. Referring to Figure 12, the bottom of the seat plate (20d) is provided with a fixing portion (34d) to which the leg (40d) is coupled and fixed. The fixing portion 34d is in the form of a round tube having a low height. At the end of the fixing portion 34d, three protrusions 3411 protruding in the center direction are provided. In the present invention, the number of the protrusions 3411 is not limited thereto. Three short threads 450 (only two are shown in the figure) are formed on the upper outer surface of the leg 20d. The present invention is not limited to three threads. The number of protrusions formed in the fixing portion 34d may be the same. The threads and the threads are spaced at regular intervals. When the protrusions 3411 of the fixing portion 34d are inserted into the spaced portions 451, and the legs 20d are rotated in the direction of the arrows, the three protrusions 3411 are fitted to the three threads 450, respectively. The leg 40d and the seat plate 20d are connected by a connecting string 102.

In addition, this invention is not limited to the structure (folding structure) of the leg by the said Example. It will be understood by those skilled in the art that consisting of a seat plate and one leg is within the scope of the present invention.

According to the configuration of the present invention, a chair having one leg is provided. The chair with one leg is simple in structure and excellent in portability. On the other hand according to the configuration of the present invention there is provided a chair capable of separating assembly of the leg and the seat plate. This separation and assembly is easy. In addition, according to the configuration of the present invention, not only has a sufficient height, there is provided a portable chair whose height is adjusted. In addition, the chair according to the present invention can be easily moved as it is while sitting, and less impact from the ground. In addition, the chair according to the present invention is compactly folded to be portable.

Although the present invention has been described with reference to the above embodiments, the present invention is not limited thereto. Those skilled in the art will appreciate that modifications and variations can be made without departing from the spirit and scope of the present invention and that such modifications and variations also fall within the present invention.

Claims (22)

A seat that is designed for people to sit on, A chair fixed to the seat plate to support the seat plate, the one end of which is fixed to the seat plate and the other end of which is in contact with the floor. According to claim 1, wherein the seat plate is provided with a first locking structure to be coupled and detachably fixed to the leg and the seat plate and the leg is provided with a second locking structure to be caught by the first locking structure, 1 The locking structure is a chair that the second locking structure is hooked to each other and one end of the leg is fixed to the seat plate. delete According to claim 2, The first locking structure of the seat plate has a fixing portion provided on the lower portion of the seat plate and the fixing portion is provided with a first locking portion, The second locking structure of the leg is provided with a rotatable locking lever, the locking lever is provided with a first hook portion to be caught on the first locking portion. The method of claim 4, wherein the fixing portion 34 is protruded below the seat plate, the first locking portion is provided by a groove 343 formed on one side of the protruding fixing portion 34, The first hanging part is provided by a locking protrusion (72) protruding at one end of the locking lever (70). The chair of claim 4, wherein the leg further includes an elastic member for applying a force to the locking lever so that the engagement between the first locking portion and the first hanging portion is maintained. The chair according to claim 4, wherein the locking lever includes an auxiliary protrusion that pushes the fixing part so that the first hook part is separated from the first locking part and the upper end of the leg is away from the fixing part. The method of claim 4, wherein the fixing portion is provided with a second locking portion and the leg is provided with a second hook portion to be caught on the second locking portion is combined with the second locking portion and the second hook portion and the first locking portion and A chair configured to be engaged between the first hanging parts. The chair of claim 8, wherein the second locking portion is a coupling rod (345) provided in the fixing portion, and the second hook portion is a coupling groove (52) provided in the main body of the leg. The chair according to claim 2, wherein the first locking structure of the seat plate has a fixing portion having a protrusion, and the second locking structure of the leg has a screw extending to the outer surface in a circumferential direction and engaged with the protrusion. . The method according to claim 2, wherein the seat plate and the leg are connected so that the seat plate and the leg do not fall more than a predetermined distance, and one end is fixed to the seat plate and the other end is fixed to the leg and further extends the connecting member. Equipped with a chair. The chair of claim 2 wherein said legs have at least two rod-shaped unit leg members that can be joined to one another at their ends. The method of claim 12, wherein one of the two adjacent unit leg member is provided with a stop so that the end portion of the other end is fitted into the other one or more than a certain portion of the end is inserted, An elastic member extending to pass through a center of the plurality of unit leg members and having both ends fixed between two unit leg members at both ends of the plurality of unit leg members to apply a force in a direction in which the two unit leg members at both ends are close to each other; Chair equipped with. delete The method of claim 12, wherein the unit leg member is capable of wandering with respect to other adjacent unit leg members, Chair having a coupling member for fixing the two adjacent unit leg members in an arbitrary position. 16. The method of claim 15, wherein the end of the unit leg member for receiving the other unit leg member therein is divided into a plurality of threaded forked, and provided with a nut coupled to the screw thread as the coupling member, The nut is formed in the inner diameter of the portion of the lower portion of the unit leg member for receiving the other unit leg member so as to push the fork inwardly and the received unit member and the fork. 16. The method of claim 15, wherein the end of the unit leg member for accommodating the other unit leg member therein is divided into a plurality of forks, the ring-shaped ring member surrounding the forks as the coupling member and the inner diameter of the ring member A chair with a lever to reduce it. 18. The chair according to any one of claims 15 to 17, wherein the unit leg member coupled to the seat plate of the unit leg members has an elastic member for absorbing shock. 16. The method of claim 15, wherein the coupling member is a columnar member inserted into the unit leg member for receiving the other unit leg member therein, at least one gap formed in the longitudinal direction to separate into a plurality of forked, and the diameter is small The length of the truncated truncated cone is provided and includes a through-hole drilled in the longitudinal direction in which the female thread is formed. One end portion of the other unit leg member accommodated in the unit leg member is fixed to the opening bar to be inserted into the through hole of the coupling member to open the coupling member, the opening rod is a female screw formed in the through hole of the coupling member The chair is provided with a male screw corresponding to the conical portion corresponding to the conical portion provided in the through hole. The chair of claim 19, further comprising a buffer unit between the opening bar and the unit leg member to which the opening bar is fixed. 21. The support shaft of claim 20, wherein one end having a flange is fixed to the opening rod and the opposite end is coupled to the unit leg member so as to be sunk but not detached from the unit leg member. And a compression coil spring fitted to the support shaft such that one end is constrained to the flange and the opposite end is constrained to the end of the unit leg member. The chair of claim 2, wherein the seat plate further comprises a handle.