KR20210126480A - Multifunctional chair - Google Patents

Abstract

The present invention relates to a multifunctional chair, comprising a backrest part having a backrest frame; a support part having a horizontal support frame and a vertical support frame mounted on the backrest part and fastened to each other; a folding means having a front leg folding means and a rear leg folding means mounted on the lower edge of the support part; and a leg part having a leg frame mounted on the folding means. Through the folding means, the front and rear leg frames of the leg part are folded toward each other and transformed into a folding form, and a shoulder strap fixed to the backrest frame or the support part is used for carrying the multifunctional chair on the back.

Description

Multifunctional chair

The present invention relates to a multifunctional chair, and more particularly, it is possible to adjust the height and angle of the backrest as a substitute for a chair, and as a means of transport, a backpack or a bag as well as various items can be lifted together to carry or tow the user. It relates to a multifunctional chair that minimizes the consumption of physical strength and improves convenience.

As the culture of modern society develops, urban workers are suffering from the stress of heavy work, and they are relieving stress through leisure sports and hobbies in their spare time. In such leisure sports and hobbies, mountaineering and fishing are carried with many tools in a backpack or bag.

For example, if you want to go on a fishing trip with a fishing bag, you have to sit for a long time while fishing, so a folding chair is included as a necessity when traveling. At this time, since the folding chair cannot be stored in the backpack, it is cumbersome because it must be moved or carried separately by being tied to the back or frame of the backpack. Also, a lot of stamina and time is wasted as you have to carry your fishing bag on your shoulder, various fishing gear in both hands, and carry your heavy fishing bag and tools from the vehicle to the fishing spot until you find a good location to fish again. can be

Also, as another example, if you are hiking with a backpack, you will take a break in the section. At this time, hikers can put their backpacks on the ground and sit on them to rest or simply sit on the floor to relieve their fatigue, but if the ground is uneven or there is a lot of dirt or moisture, they cannot sit down, take a break, and then move again. As a result, fatigue may accumulate.

For this reason, conventionally, as shown in FIG. 1 , a chair has been manufactured to be detachably attached to a backpack or bag. Briefly looking at this, the backpack 10, the first frame 11 supporting the lower surface of the backpack 10, the second frame 12 fixed to the first frame 11 on the rear side of the backpack 10, The second frame 12 may be provided with a third frame 13 having a shape refracted in the shape of an "L" on the side that is detachably fitted.

Here, in a state in which the backpack is carried on the back, the third frame 13 is fitted to the second frame 12 in a state in which the bending portion is in close contact with the backrest portion of the backpack 10 . When sitting and resting as shown in FIG. 1 , the third frame 13 is inserted into the second frame 12 with the refractive part facing the ground. In this way, the convenience was provided so that you can sit and rest while fishing or mountaineering.

However, in the case of the first, second, and third frames 11, 12, and 13, there was a limitation in that they were simply attached to a backpack and used only as a substitute for a chair. Therefore, rather than such a simple function and structure, it is required to develop not only a backpack but also various articles, and a product with improved convenience such as height adjustment and backrest angle adjustment as a chair.

Republic of Korea Patent Registration No. 10-0557339 (published on March 10, 2006) Republic of Korea Patent Publication No. 10-2012-0062042 (published on Jun. 14, 2012) Republic of Korea Public Utility Model No. 20-2017-0000067 (published on 2017.01.04.) Republic of Korea Registered Utility Model No. 20-0449755 (2010.07.30. Announcement)

An object of the present invention, devised to solve the above problems, is to have the functions of a chair and a bed that can be carried, such as a backpack or a handbag, and a chair and a bed that can be adjusted in height and angle of the backrest, etc. , fishing or mountaineering backpacks or bags, etc., can be carried on the back or towed, so it can be conveniently transported with less physical strength. We are providing chairs.

In order to achieve the above object, a multifunctional chair according to the present invention includes a backrest having a backrest frame, a supporting portion having a horizontal supporting frame and a supporting vertical frame mounted on the backrest and coupled to each other to form a predetermined area; and a folding means having a front leg folding means and a rear leg folding means mounted on the lower edge of the support part; and a leg part having a leg frame mounted on the folding means.

Due to this configuration, the front and rear leg frames of the leg unit are deformed to be folded toward each other through the folding means, and the back frame or the shoulder strap fixed to the support unit can be carried as a medium.

Here, the front leg folding means is a first fixing member that is fixed downwardly to the lower part of the supporting horizontal frame or the supporting vertical frame and has a convex part (C) on a part, the upper part is mounted so as to rotate axially on the first fixing member, and the lower part is the leg A folding rotation shaft inserted into the frame to slide and move, and a hollow column shape through which the folding rotation shaft passes, the top surface is in contact with the bottom surface of the first fixing member, and the separation prevention cap installed so that the upper part of the leg frame is slidingly inserted through the open bottom surface And, while being built into the separation prevention cap may be provided with a folding spring disposed between the separation prevention cap and the leg frame.

At this time, when the leg frame is tilted backward, the folding shaft rotates and the upper surface of the separation prevention cap moves along the outer surface of the first fixing member. When the frame is slidably inserted into the escape prevention cap, and passes through the convex portion (C), the folding spring returns and the separation prevention cap may also be installed to return to its original position.

On the other hand, the rear leg folding means has a "L" shape and is fixed downwardly to the lower part of the support horizontal frame or the support vertical frame, and a second fixing member having a convex part (C) on a part thereof, so as to pivot on the lower part of the second fixing member The upper part is mounted and the lower part is inserted into the leg frame to slide and move, and it is a hollow column shape through which the folding axis passes. It may include a separation prevention cap installed to be slidingly inserted, and a folding spring disposed between the separation prevention cap and the leg frame while being built into the separation prevention cap.

At this time, when the leg frame is tilted forward, the folding shaft rotates and the upper surface of the separation prevention cap moves along the outer surface of the second fixing member. When the frame is slidably inserted into the escape prevention cap, and passes through the convex portion (C), the folding spring returns and the separation prevention cap may also be installed to return to its original position.

Here, the first fixing member of the front leg folding means is located in front of the separation preventing cap so that it becomes flat when the support part is placed on the ground in the fore-in state, and an extension member extending downward to have the same height as the lower end of the second fixing member. can

On the other hand, height adjustment having a height adjustment bar inserted into the leg frame and having a plurality of locking grooves on the outer surface, and an elastic stopper mounted on the leg frame and installed to adjust the insertion and withdrawal of the height adjustment bar while being fastened to and released from the locking groove. It may further include; means; and a floor support means having a fixture mounted on the lower end of the height adjustment bar, and a floor support member that is mounted to the fixture by a ball joint and is mounted in contact with the ground.

In addition, it is mounted to rotate on the lower part of the vertical member together with the vertical member, the ratchet wheel mounted to rotate on the lower part of the vertical member, the ratchet wheel, A lock release wheel having a sectoral shape and a release protrusion protruding from the outer periphery, a pawl having a locking protrusion to engage with the teeth of the ratchet wheel, the rear part is fixed to the transverse support frame, It may be made to further include; angle adjusting means having a member.

At this time, when the backrest frame is folded to the side of the supporting frame, the release surface of the lock release wheel is located between the pawl and the ratchet wheel to prevent engagement. The coupling is made so that the angle of inclination of the backrest frame can be adjusted.

As described above, according to the present invention, the chair including the backrest part, the support part, and the leg part mounted on the support part folds the front and rear legs of the leg part and is transformed into an approximately "B"-shaped fork, so that you can sit for a long time, such as fishing. It can be used as a chair when traveling, and can be used as a fork or a hand cart to transport items including bags, thereby maximizing user convenience.

In addition, since the angle of the backrest frame is adjusted by the angle adjusting means, it is possible to comfortably lean back when used as a chair, and there is an effect that the backrest frame can be reclined as far back as possible to rest.

In addition, when the floor on which the chair is placed has a different height, the height adjustment bar of the height adjustment means mounted on the front and rear legs is drawn out and inserted, so that the pedestal is always approximately horizontal regardless of the difference in the height of the ground, so that you can sit stably there is

And when the floor is uneven, the support member rotates shaft and is in close contact with the floor as much as possible, thereby stably supporting the support part.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited only to the matters described in those drawings should not be construed as
1 is a state diagram schematically showing a backpack to which a conventional folding chair is attached.
2 is a perspective view schematically showing a multifunctional chair according to a first embodiment of the present invention.
FIG. 3 is a cross-sectional view schematically illustrating the front leg folding means shown in FIG. 2 .
4A and 4B are perspective and side views schematically illustrating the rear leg folding means shown in FIG. 2 .
5 is a cross-sectional view schematically showing the height adjusting means shown in FIG.
FIG. 6 is a partial perspective view showing the outside of FIG. 5 .
7 is a perspective view showing the elastic stopper shown in FIG.
8 is an exploded perspective view schematically showing the angle adjusting means shown in FIG.
9 is a perspective view illustrating a state in which the chair of FIG. 2 is transformed into a chair.
10 is a perspective view schematically showing a multifunctional chair according to a second embodiment of the present invention.
11 is a side view showing a folding means for fastening the support part and the leg part shown in FIG. 10 .
12 is a perspective view showing the fixing cap shown in FIG. 11 .
13 is a perspective view showing the angle adjusting means shown in FIG. 11 .
14 is a side view illustrating an operation of folding or unfolding the chair illustrated in FIG. 10 .
Figure 15a is a side view of the main part in which the roller for the hand cart is installed inside the pair of left and right second fixing members in the first embodiment of the present invention.
Figure 15b is a side view of the main part in which the rollers for the hand cart are installed inside the pair of left and right hind leg fixings in the second embodiment of the present invention.

Hereinafter, preferred embodiments will be described in detail so that those of ordinary skill in the art can easily practice the present invention with reference to the accompanying drawings. However, when it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention in describing the operating principle of the preferred embodiment of the present invention in detail, the detailed description thereof will be omitted.

<First embodiment>

As shown in FIG. 2 , the multifunctional chair according to the first embodiment of the present invention includes a support part 100 , a leg part 200 , and a backrest part 300 . Here, a cloth or a cushion may be attached to the support part 100 and the backrest part 300 to be wrapped.

First, the support unit 100 may be a portion on which the user's buttocks are placed when used as a chair, and may be a portion on which items including a backpack are placed when used as a fork. The support unit 100 may include at least two horizontal support frames 110 and at least two vertical support frames 120 that are coupled to each other to form a substantially rectangular shape on a plane. In addition, horizontal bars or vertical bars may be installed to support the horizontal support frame 110 and the vertical support frame 120 .

Here, in the lower portions of both sides of the transverse supporting frame 110 located in the front of the two transverse supporting frames 110 , the leg frames 230 of the leg units 200 are mounted toward the ground through the front leg folding means 210 , respectively. can be In addition, on both lower sides of the supporting transverse frame 110 located at the rear, the leg frames 230 of the leg parts 200 are mounted toward the ground through the rear leg folding means 220, respectively, and on the upper side, the back frame 310, respectively. ) may be mounted upwardly via the angle adjusting means 340 .

And the front and rear support vertical frame 120 can be fixed to support by connecting the horizontal support frame (110). Precisely, the front support vertical frame 120 is fixed by connecting the first fixing member 211 of the front leg folding means 210 , and the rear supporting vertical frame 120 is the second of the rear leg folding means 220 . It may be fixed by connecting the fixing member 221 .

Meanwhile, the leg unit 200 may be mounted on at least four corners of the support unit 100 toward the ground. The leg unit 200 includes a front leg folding means 210 and a rear leg folding means 220 mounted on the support unit 100, and a leg frame 230 mounted on the front leg folding means 210 or the rear leg folding means 220. ), a height adjustment means 240 mounted to be drawn out and inserted from the leg frame 230 , and a floor support means 250 mounted on the lower end of the height adjustment means 240 may be provided.

As shown in FIGS. 2 and 3 , the front leg folding means 210 may be mounted to fold the leg frame 230 of the front leg rearward in the leg part 200 . A first fixing member 211 fixed to a lower portion of the front end portion of the transverse support frame 110 , a folding rotation shaft 212 , a separation prevention cap 213 , and a folding spring 214 may be provided.

At this time, the first fixing member 211 may have an upper portion fixed to the lower portion of the supporting transverse frame 110 . The rear side of the first fixing member 211 is opened so that the leg frame 230 is folded rearward, and the extension member 211a protrudes downward to prevent the leg frame 230 from being excessively axially rotated forward. It may be manufactured as much as possible or may be separately manufactured and attached. This extension member (211a) is a portion in contact with the ground together with the second fixing member (221) in the state of being lifted as shown in FIG. Accordingly, the lower ends of the extension member 211a and the second fixing member 221 may be manufactured to have the same height in order to lay the ground flat. In addition, the first fixing member in contact with the separation prevention cap 213 at a position where the leg frame 230 supports the floor to support the support unit 100 or at a position when the leg frame 230 is completely folded. A flat portion (P) may be processed on a portion of the (211). In addition, when the leg frame 230 is folded, the convex portion C forming a convex curved surface on a portion of the first fixing member 0 may be processed so that the separation prevention cap 213 is pushed and the folding spring 214 is compressed. Due to this, in order for the front leg frame 230 to be folded backward, an external force capable of overcoming the elastic force of the folding spring 214 may be required, and the first fixing member 211 is folded past the convex portion C. When the folding spring 214 is returned to its original state, the separation prevention cap 213 is pushed, thereby maintaining the folded state of the first fixing member 211 .

In addition, the folding rotation shaft 212 is a member that connects the first fixing member 211 and the leg frame 230 , and enables the leg frame 230 to rotate and be folded with respect to the first fixing member 211 . To this end, one side of the folding rotation shaft 212 may be mounted to pivotally rotate on the first fixing member 211 , and the other side may be mounted to slide on the leg frame 230 .

In addition, the separation prevention cap 213 may be mounted so that the upper surface is in contact with the outer surface of the first fixing member 211, and the upper portion of the leg frame 230 is slidingly inserted and drawn out through the open lower surface. A folding spring 214 may be built in the separation prevention cap 213 . Accordingly, the upper surface of the separation prevention cap 213 is in contact with the outer surface of the first fixing member 211 while the folding rotation shaft 212 is rotating to reach the flat portion P through the convex portion C. do.

In addition, the folding spring 214 may be installed in the separation prevention cap 213 and interposed between the separation prevention cap 213 and the leg frame 230 to provide an elastic force. Accordingly, the folding spring 214 may be compressed when the separation prevention cap 213 reaches the convex portion C while the folding rotation shaft 212 is pivotally rotated, and may be restored to its original state when it reaches the flat portion P.

The rear leg folding means 220 may be mounted to fold the leg frame 230 of the front leg rearward in the leg part 200 as shown in FIGS. 3 to 4B . The rear leg folding means 220 is different only from the front leg folding means 210 and the second fixing member 221 , and the other components are the same, so the second fixing member 221 will be described. The second fixing member 221 has a substantially “L” shape on the side, and may be manufactured by processing the shoulder root lower hanging hole (221a) in the lower portion of the upper surface. In addition, for example, in a position where the leg frame 230 is inclined rearward than vertical, or in a fully folded state, a flat portion P is provided on a portion of the second fixing member 221 in contact with the separation prevention cap 213 . can In addition, when the leg frame 230 is folded forward, it is folded only by an external force greater than or equal to a certain size that can overcome the elastic force of the folding spring 214. A convex portion (C) may be provided on an adjacent portion.

The leg frame 230 may be manufactured in a pipe shape having a predetermined length. The leg frame 230 is mounted so that the upper portion is slidingly inserted into and withdrawn from the separation prevention cap 213 , and a height adjustment bar 241 and an elastic member 242 may be mounted therein. Accordingly, the upper portion of the leg frame 230 is inserted when the separation prevention cap 213 reaches the convex portion C and is pushed, and is pulled out and returned when located in the flat portion P.

The height adjustment means 240 may be installed to adjust the height between the support part 100 and the ground. To this end, the height adjustment means 240 may include a height adjustment bar 241 , an elastic member 242 , a height adjustment cap 243 and an elastic stopper 244 , as shown in FIGS. 3 and 5 .

Here, the height adjustment bar 241 has a predetermined length, as in FIGS. 3 and 5 , and may be manufactured such that a plurality of locking grooves 241a are processed along the outer circumferential surface. The height adjustment bar 241 is inserted into the leg frame 230 and may be installed to be drawn downward by the elastic member 242 . At this time, the height adjustment bar 241 may be stopped or moved at a predetermined height while the elastic stopper 244 is inserted into or separated from the locking groove 241a. These locking grooves 241a are processed one by one at regular intervals in the height direction, so that the height adjustment of the height adjustment bar 241 can be performed in stages. In addition, the locking groove 241a is processed in a continuous spiral with respect to the height direction, so that the height adjustment may be performed by turning the height adjustment bar 241 clockwise or counterclockwise. When the shape of each locking groove 241a is enlarged, the upper portion (U) on the side cross-section may be processed to form a gentler curved surface than the lower portion (B). For this reason, when the elastic stopper 244 is positioned between the upper portion U of the locking groove 241a and the locking protrusion 215a and the locking is coupled, the release of the coupling is prevented as much as possible, and the upward movement of the height adjustment bar 241 is It is prevented, and the downward movement of the height adjustment bar 241 may be easier than the upward movement.

In addition, the elastic member 242 may be installed to push the height adjustment bar 241 downward, as shown in FIG. 3 . To this end, the elastic member 242 may be interposed between the inner upper surface of the leg frame 230 and the height adjustment bar 241, for example, the upper end is in contact with the inner upper surface of the leg frame 230, and the lower portion is height adjusted. It may be installed to be inserted into and supported by the bar 241 . That is, since the elastic force of the elastic member 242 is provided to the height adjustment bar 241 , the elastic member 242 provides the downward movement force of the height adjustment bar 241 . In this case, the upward movement of the height adjustment bar 241 may be prevented by the linkage operation with the height adjustment cap 243 and the elastic stopper 244 mounted on the lower end of the leg frame 230 .

In addition, the height adjustment cap 243 is fixed while surrounding the outer surface of the lower portion of the leg frame 230, as in FIGS. The groove 243a, the upper surface of the side fixing groove 243a inclined at an obtuse angle, the inclined surface 243b, the inclined surface 243b and the locking protrusion 243c located on the upper side, and a wave of the elastic stopper 244 on the lower part The branch 244a may have a through hole 243d processed to protrude to the outside. At this time, the height adjustment cap 243 may be arranged such that the fixing groove 243a is positioned lower than the lower end of the leg frame 230 to be placed at a position directly facing the height adjustment bar 241 as shown in FIG. 5 .

And, the elastic stopper 244 may be manufactured to have a gripping portion 244a as a member having its own elastic force is processed into a substantially circular shape on a plane, and both ends are refracted, as shown in FIG. 7 . Here, when the gripper 244a is pressed with the thumb and index finger, the locking with the locking groove 241a is released as shown in FIG. The elastic stopper 244 is inserted into the height adjustment cap 243 as shown in FIG. 6 , and may be installed such that the holding portion 244a is exposed to the outside through the through hole 243d. In addition, the elastic stopper 244 is positioned between the locking groove 241a and the locking protrusion 243c of the height adjustment bar 241 by its own elastic force to be tightened and is caught, so that the height adjustment bar 241 moves upward, that is, the leg. Movement of being inserted into the frame 230 may be prevented. And when the gripper 244a of the elastic stopper 244 is pressed, it opens and retreats easily along the inclined surface 243b as in FIG. The locking coupling with the group 243b and the locking groove 241a may be released.

As shown in FIGS. 2 and 5 , the floor support means 250 is a part in contact with the ground, and the fixed body 251 fixed to the height adjustment bar 241, and the entire lower part of the fixed body 251 . It may have a floor support member 252 mounted to rotate in the orientation. In this case, the floor support member 252 may be, for example, a ball joint combination with the fixture 251 . Accordingly, even if the ground is uneven, gravel, or sand is laid, the pivotally rotating floor support member 252 can stably contact the ground.

On the other hand, the backrest 300 is, as shown in FIG. 2, the back frame 310, the upper back plate 320, the lower back plate 330, both ends of the backrest frame 310 and the rear of the support transverse frame 110. It can be made by providing an angle adjustment means 340 mounted by connecting the.

The backrest frame 310 has an approximately "∩" shape, and both front ends are located at the rear of the support transverse frame 110 and may be coupled via the angle adjusting means 340 , respectively.

The backrest upper plate 320 may be fixed to reinforce the supporting force across the backrest frame 310 in the longitudinal direction. This backrest upper plate 320 may have one or two or more upper shoulder support holes 321a. Therefore, the shoulder strap 400 is fixed to the shoulder muscle support hole 321a of the upper back plate 320 and the shoulder muscle lower support hole 221a of the second fixing member 221, and this shoulder strap 400 It can be carried on the back in the form of a forklift in a chair using

The lower back plate 330 may be fixed across the back frame 310 in the longitudinal direction under the upper back plate 320 . The lower back plate 330 may be excluded.

The angle adjusting means 340 may be mounted by connecting both ends of the backrest frame 310 and the rear of the supporting transverse frame 110 . As shown in FIG. 8 , the angle adjusting means 340 may include a horizontal member 341 , a pawl 342 , a ratchet wheel 343 , a lock release wheel 344 , and a vertical member 345 .

Here, the horizontal member 341 is fixed to the rear end of the transverse support frame 110 , and may be manufactured so that the front end portion spreads to both sides on a plane. The horizontal member 341 may be mounted on the tip side portion so that the pole 342 pivots.

In addition, the pawl 342 may be axially rotatably mounted on the horizontal member 341 , and may be manufactured to include a locking protrusion 342a that is engaged with the teeth 343a of the ratchet wheel 343 disposed nearby.

In addition, the ratchet wheel 343 may be manufactured so that the teeth 343a are processed only by 360° or a predetermined angle of the circumferential surface while being disposed in the vicinity of the pawl 342 . The ratchet wheel 343 may be mounted to rotate on the vertical member 345 .

In addition, the unlocking wheel 344 is mounted on the same rotational shaft as the ratchet wheel 343, and has a diameter from the center of rotation to the tip of the tooth 343a, and has a release surface 344a on the edge, and any part of the edge The release protrusion 344b may be manufactured to protrude from the . The unlocking wheel 344 may have, for example, a substantially fan-shaped shape on the side.

And the vertical member 345 is fixed to the lower end of the backrest frame 310, the tip side portion may be manufactured so as to spread to both sides in a plane. The vertical member 345 may be mounted on the tip side so that the ratchet wheel 343 and the lock release wheel 344 rotate. Here, the vertical member 345 may be provided with a locking protrusion 345a at the portion that is opened to both sides. Accordingly, when the vertical member 345 is axially rotated, the locking protrusion 345a pushes the release protrusion 344b.

Accordingly, as shown in FIG. 8 , when the backrest frame 310 rotates at a predetermined angle in the counterclockwise direction, the pawl 342 is caught on the ratchet wheel 343 , so that the angle of the backrest frame 310 can be adjusted. In addition, when the backrest frame 310 is pivotally rotated so as to be in contact with the supporting transverse frame 110, the locking jaw 345a of the vertical member 345 pushes the release protrusion 344b, and the release surface 344a is formed with the pole 342 and the pole 342. It is interposed between the ratchet wheels 343 to release the jamming state of the pawl 342 and the ratchet wheel 343 . And when the backrest frame 310 is axially rotated in a clockwise direction to achieve a substantially horizontal level, the release surface 344a between the pawl 342 and the ratchet wheel 343 is moved, and from this time the pawl 342 and the ratchet wheel 343 are moved. ) is enabled to engage and the angle of the backrest frame 310 can be adjusted.

On the other hand, as in FIG. 15a, avoiding the folding rotation shaft 261 to the inside of the pair of second fixing members 221, the hand cart roller (R) is shaft-coupled to grip the handle (not shown) on the upper backrest, and on flat ground You can use it as a hand cart. Of course, it is preferable to transport it by forklift in the terrain with shorestone or rocks.

<transformation>

The operation of transforming the multi-function chair according to the first embodiment of the present invention from the chair of FIG. 2 to the chair of FIG. 9 will be described.

First, when the leg frame 230 of the front leg is tilted backward, as shown in FIG. 3 , the convex part C of the first fixing member 211 pushes the separation prevention cap 213, and the folding spring 214 is compressed, When it is further tilted, the separation prevention cap 213 reaches the flat portion P, and as the folding spring 214 returns to its original state, the separation prevention cap 213 is in close contact with the first fixing member 211 . Accordingly, the folded state of the leg frame 230 of the front leg may be maintained.

In addition, when the leg frame 230 of the rear leg is folded forward, it is folded in the same structure as described above.

As shown in FIG. 9 , when it is transformed into a fork, a bag, a backpack, and various things can be loaded on the support unit 100 including the horizontal support frame 110 and the vertical support frame 120 . Thereafter, the backrest frame 310 is placed on the back, and the shoulder strap 400 is placed over the shoulder to carry the object.

On the other hand, when the grip portion 244a of the elastic stopper 244 is pressed to release the height of the leg portion 200 from the height adjustment bar 241, the height adjustment bar 241 is moved by the return force of the elastic member 242. can be withdrawn outside. At this time, the external force of the gripping portion 244a is removed after the length of the extension of the height adjustment bar 241 is adjusted, and the elastic stopper 244 is engaged with the height adjustment bar 241 .

And the angle adjustment of the backrest frame 310 can be fixed step by step by engaging the pole 342 and the ratchet wheel 343 when the backrest frame 310 pivots forward, that is, rotates in the counterclockwise direction. have. Conversely, when the backrest frame 310 is pivotally rotated to the rear and laid flat, that is, when the backrest frame 310 is pivoted to the end in the counterclockwise direction in order to pivot in the clockwise direction, the pawl by the lock release wheel 344 The engagement between the 342 and the ratchet wheel 343 may be released. In this state, when the backrest frame 310 is rotated clockwise to make it horizontal and then slowly rotated counterclockwise, it can be achieved by engaging the pawl 342 and the ratchet wheel 343 again.

<Second embodiment>

Hereinafter, another embodiment of the present invention will be described in detail with reference to FIGS. 10 to 13 . Here, the embodiment shown in FIG. 10 is compared with the embodiment shown in FIG. 2 , a folding means including a front leg folding means 210 and a rear leg folding means 220 , an angle adjusting means 340 , and a backrest You can see the changed configuration difference in the unit 300 . In addition, the height adjusting means 240 of the leg part 200 may be the same. Therefore, the same configuration will be briefly mentioned if necessary, and the changed configuration will be described in detail.

First, the folding means includes a third fixing member 260 replacing the first fixing member 211 and the second fixing member 221 shown in FIGS. 3 to 4B , a folding rotation shaft 212 and a folding spring 214 . ) and a fixing cap 215 to replace the separation prevention cap 213 may be provided.

The third fixing member 260 is a member replacing the first fixing member 211 and the second fixing member 221 shown in FIGS. 3 to 4B . The third fixing member 260 may be fixed to the lower portion of the supporting transverse frame 110 as shown in FIGS. 10 and 11 , and an angle adjusting member 346 may be fixed to the rear upper surface. In addition, the third fixing member 260 has a constant length on the side, and may include a front leg fixing part 261 that protrudes downwardly at the front part, and a rear leg fixing part 262 that protrudes downwardly on the rear part.

Here, the front leg fixing part 261 may be processed into a curved surface on the side so that the leg frame 230 can pivot through the front leg folding means 210 . In detail, the lower surface of the leg frame 230 and a portion of the rear leg fixing part 262 side may be processed into a curved surface so that it can be folded rearward. In addition, at least one fixing groove (G) to which the locking protrusion 215a of the fixing cap 215 to be described later is fastened may be machined at regular intervals on the curved portion of the front leg fixing part 261 . As an example, the fixing groove (G) of the front leg fixing part 261 is a position where the leg frame 230 is vertically positioned and the locking protrusion 215a is fastened, and the leg frame 230 is a stepping stone in a folded state to the rear. The group 215a may be processed at a fastening position. At this time, the fixing groove (G) may be machined at a position where the leg frame 230 is in a vertical state and a horizontal state.

In addition, the folding shaft 212 may be mounted such that one side is pivotally rotated in the first shaft rotation hole 261a of the front leg fixing part 261 , and the other side is inserted into the leg frame 230 to slide.

In addition, the folding spring 214 may be mounted between the inner upper surface of the fixing cap 215 and the upper surface of the leg frame 230 . The folding spring 214 can be compressed and returned by the fixing cap 215 that moves along the lower surface of the front leg fixing part 261 when the leg frame 230 rotates together with the folding rotation shaft 212 .

In addition, the rear leg fixing part 262 is wider than the front leg fixing part 261 on the side, and the lower part can be processed into a curved surface so that the leg frame 230 can axially rotate through the rear leg folding means 220 . have. In detail, the lower surface of the leg frame 230 and a portion of the front leg fixing part 261 side may be processed into a curved surface so that it can be folded forward. In addition, at least one fixing groove (G) to which the locking protrusion 215a of the fixing cap 215 to be described later is fastened may be machined at regular intervals on the curved portion of the front leg fixing part 261 . For example, the fixing groove G of the rear leg fixing part 262 has at least one position at which the locking protrusion 215a is fastened in a state obliquely positioned to the rear of the leg frame 230 , and the front of the leg frame 230 . In the folded state, the locking protrusion 215a may be processed at a fastened position. At this time, some of the fixing grooves (G) may be positioned so that the leg frame 230 is unfolded at several angles among an angle of approximately 0 to -90°. This is because, in a chair state, the rear leg frame 230 spreads backward to support the ground, thereby providing stability as a chair.

In addition, one side of the folding shaft 212 may be mounted to pivotally rotate in the second shaft rotation hole 262a of the rear leg fixing part 262 , and the other side may be inserted into the leg frame 230 to slide. Here, the second shaft rotation hole 262a is positioned higher than the first shaft rotation hole 261a on the side, so that the rear leg frame 230 and the front leg frame 230 can be folded up and down side by side as shown in FIG. 14 . Of course, in the opposite case, the second shaft rotation hole 262a may be machined lower than the first shaft rotation hole 261a.

On the other hand, as shown in FIGS. 10 to 12, the fixing cap 215 is mounted so that the folding rotation shaft 212 is inserted and penetrates the upper surface, and the upper part of the leg frame 230 is inserted and slid through the open lower surface. can In this case, the folding spring 214 may be embedded between the inner upper surface of the fixing cap 215 and the upper surface of the leg frame 230 . The fixing cap 215 includes a guide extension 215c protruding from the upper surface, a locking protrusion 215a that is adjacent to the guide extension 215c while protruding from the upper surface and fastened to the fixing groove G, and a folding spring 214 . ) by compression, when the fixing cap 215 moves, the locking projection 215a protrudes from the side so that the locking projection 215a is separated from the fixing groove G.

Here, the guide extension part 215c is a part for guiding the fixing cap 215 moving along the curved surface of the front leg fixing part 261 or the rear leg fixing part 262, and may be omitted. This guide extension part 215c guides the shaft rotation of the fixing cap 215 and the leg frame 230 smoothly while contacting or sometimes non-contacting the side of the front leg fixing part 261 or the rear leg fixing part 262. .

As shown in FIG. 11 , the fixing cap 215 may be commonly used for the front leg folding means 210 and the rear leg folding means 220 .

Meanwhile, as shown in FIGS. 10 and 13 , the angle adjusting means 340 may include an angle adjusting member 346 , a folding rotation shaft 212 and a folding spring 214 , and a fixing cap 215 .

The angle adjustment member 346 is fixed to the rear upper surface of the third fixing member 260, the upper surface forms a certain curvature, and may include a plurality of angle adjustment grooves 346a machined on the upper surface. Accordingly, it can be fixed at various angles of the backrest frame 310 on the side by the angle adjustment grooves 346a.

In addition, the folding rotation shaft 212 may be mounted so that one side is axially rotated in the third shaft rotation hole 346b of the angle adjusting member 346 , and the other side is inserted into the backrest frame 310 to slide.

And the folding spring 214 may be mounted between the inner upper surface of the fixing cap 215 and the upper surface of the backrest frame 310 . The folding spring 214 can be compressed and returned by the fixing cap 215 moving along the upper surface of the angle adjusting member 346 when the backrest frame 310 pivots together with the folding rotation shaft 212 .

On the other hand, as shown in FIGS. 10, 12 and 13, the fixed cap 215 is mounted so that the lower end of the backrest frame 310 is inserted and slid through the open upper surface, and the folding rotation shaft 212 passes through, A folding spring 214 may be mounted between the inner lower surface and the lower surface of the backrest frame 310 . The fixing cap 215 includes a guide extension 215c protruding from the lower surface, a locking protrusion 215a that protrudes from the lower surface and is adjacent to the guide extension 215c and is fastened to the fixing groove G, and a folding spring 214 . ) by compression, when the fixing cap 215 moves, the locking projection 215a protrudes from the side so that the locking projection 215a is separated from the fixing groove G.

Here, the guide extension portion 215c is a portion for guiding the fixing cap 215 moving along the curved surface of the angle adjusting member 346 . The guide extension 215c guides the shaft rotation of the fixing cap 215 and the leg frame 230 smoothly while in contact with or sometimes not in contact with the side surface of the angle adjusting member 346 .

The fixed cap 215, the folding rotation shaft 212 and the folding spring 214 have the same structure as those used for the front leg folding means 210 and the rear leg folding means 220 in FIG. 11, only the installation angle adjusting member ( 346) is only different.

On the other hand, as shown in FIGS. 10 and 14 , the backrest part 300 has a backrest frame 310 having an approximately “∩” shape and an approximately “∩” shape that is smaller than the backrest frame 310 and is positioned rearwardly and a plurality of fastenings A backrest auxiliary frame 350 fixed to the backrest frame 310 by the member 351 may be provided.

Here, the auxiliary backrest frame 350 may be mounted at an angle having an upper portion close to the backrest frame 310 and a lower portion away from the backrest frame 310 . This installation angle is to make the backrest auxiliary frame 350 stick to the back of the bearer and carry it comfortably when carrying it on the shoulder after being deformed in the shape of a fork.

Meanwhile, the shoulder strap 400 may be fixed by connecting the back 300 and the support 100 or by connecting the upper and lower portions of the back 300 . In addition, an auxiliary strap that can be gripped by hand by fixing one end to the supporting longitudinal frame 120 on the side of the front leg folding means 210 and passing the other side to the shoulder of the bearer may be further added.

On the other hand, as shown in FIG. 15b, avoiding the second rotation shaft hole 262a to the inside of the pair of hind leg fixing parts 262, the hand cart roller (R) is shaft-coupled, and the handle (not shown) of the upper backrest is gripped to hold the flat surface. It can be used as a hand cart. Of course, it is preferable to transport it by forklift in the terrain with shorestone or rocks.

<transformation>

An operation in which the multifunctional chair according to the second embodiment of the present invention is transformed from the chair of FIG. 10 to the chair of FIG. 14 will be described. Here, the chair state may be a state in which the front leg frame 230 and the rear leg frame 230 support the ground, and the back frame 310 is positioned between 0 and 90° to sit comfortably.

First, in a chair state, the locking projection 215b of the rear leg folding means 220 may be pulled downward to release the locking projection 215a from the fixing groove G of the rear leg fixing part 262 .

Next, the rear leg frame 230 is pivotally rotated forward, and the locking protrusion 215a can be engaged with the other fixing groove G by releasing the locking release protrusion 215b. Accordingly, the rear leg frame 230 may be in a horizontally folded state.

Next, the locking projection 215b of the front leg folding means 210 may be pulled downward to release the locking projection 215a from the fixing groove G of the front leg fixing part 261 .

Finally, the front leg frame 230 is pivotally rotated to the rear, and the locking protrusion 215a can be engaged with the other fixing groove G by placing the locking release protrusion 215b. Accordingly, the front leg frame 230 may be horizontally folded to be parallel to the rear leg frame 230 .

In addition, in order to additionally adjust the angle of the backrest frame 310, first, the locking protrusion 215a of the angle adjusting means 340 is pulled upward and the angle adjusting groove 346a of the angle adjusting member 346 is pulled upward. ) can be released from

Finally, the backrest frame 310 can be set to approximately 90°, and the locking protrusion 215a can be engaged with the other angle adjustment groove 346a by placing the locking release protrusion 215b. As a result, the backrest frame 310 can be adjusted to a comfortable angle for carrying a chair.

On the other hand, although not shown, when the roller (R) is installed on the second fixing member 221 and the rear leg fixing part 262, the contact surface of the roller is coupled to protrude only the rear part, so that the leg is folded and mounted stably, and the hand cart When using the furnace, it is preferable to tilt it back so that the roller (R) slides on the ground.

In addition, a handle may be provided on the upper part of the backrest, and hooks for fastening the load with a string when used as a forklift or a hand cart are provided on the support frame 110 and the backrest frame 310, and the neck pillow is detachable from the upper front of the backrest. Or it may be provided with a pocket portion on the back of the backrest.

As described above, those skilled in the art to which the present invention pertains will be able to understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims described later rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included in the scope of the present invention. do.

100: support
110: support horizontal frame 120: support vertical frame
200: leg
210: front leg folding means 211: first fixing member
211a: extension member 212: folding shaft
213: separation prevention cap 214: folding spring
215: fixing cap 215a: locking projection
215b: jam release projection 215c: guide extension
220: rear leg folding means 221: second fixing member
221a: shoulder strap lower hole 230: leg frame
240: height adjustment means 241: height adjustment bar
241a: locking groove 242: elastic member
243: height adjustment cap 243a: fixing groove
243b: slope 243c: stumbling block
243d: through hole 244: elastic stopper
244a: grip portion 250: floor support means
251: fixed body 252: floor support member
260: the third fixing member 261: the front leg fixing member
261a: first shaft rotation hole 262: hind leg fixing part
262a: second shaft rotation hole
300: backrest
310: backrest frame 320: backrest upper plate
321: upper shoulder strap hanger hole 330: lower back plate
340: angle adjustment means 341: horizontal member
342: pole 342a: stumbling block
343: ratchet wheel 343a: tooth
344: unlock wheel 344a: release surface
344b: release projection 345: vertical member
345a: locking jaw 346: angle adjustment member
346a: angle adjustment groove 346b: 3rd shaft rotation hole
350: backrest auxiliary frame 351: connecting member
400: shoulder strap
C: convex
G: Fixed groove.
P: Flat part.

Claims (11)

Backrest portion 300 having a backrest frame 310,
Mounted to the lower portion of the backrest 300, the support portion 100 having a horizontal support frame 110 and a vertical support frame 120 coupled to each other to form a predetermined area;
Folding means having a front leg folding means 210 and a rear leg folding means 220 mounted on the lower edge of the support part 100; And,
Including;;
The front and rear leg frames 230 of the leg part 200 are folded toward each other through the front leg folding means 210 or the rear leg folding means 220, and the backrest frame 310 or the support part ( Multifunctional chair, characterized in that it is carried on the back through the shoulder strap 400 fixed to 100).
In claim 1,
The front leg folding means 210 is a first fixing member 211 fixed downwardly to the lower portion of the supporting horizontal frame 110 or the supporting vertical frame 120 and having a convex portion (C) on a part thereof, the first fixing member The folding shaft 212 is mounted on the upper part to pivot on the 211 and the lower part is inserted into the leg frame 230 to slide and move. The separation prevention cap 213 is installed so that the upper part of the leg frame 230 is slide-inserted through the open bottom surface in contact with the lower surface of the member 211, and the separation prevention cap 213 while being embedded in the separation prevention cap 213; and a folding spring 214 disposed between the leg frames 230,
When the leg frame 230 is tilted to the rear, the upper surface of the separation prevention cap 213 moves along the outer surface of the first fixing member 211 while the folding rotation shaft 212 axially rotates, and the separation prevention cap 213 is moved. When located in the convex portion (C), the folding spring 214 is compressed and the leg frame 230 is slidably inserted into the separation prevention cap 213, and when it passes through the convex portion (C), the folding spring 214 returns and separates. Multifunctional chair, characterized in that the prevention cap 213 is also installed to return to the original position.
In claim 2,
The rear leg folding means 220 has a "L" shape and is fixed downwardly to the lower part of the supporting horizontal frame 110 or the supporting vertical frame 120, and has a convex portion (C) on a second fixing member 221 . , The second fixing member 221, the upper portion is mounted to rotate axially, and the lower portion is inserted into the leg frame 230 to slide the folding shaft 212, a hollow column through which the folding shaft 212 passes. The upper surface is in contact with the lower surface of the first fixing member 211 and the upper part of the leg frame 230 is slide-inserted through the open lower surface. and a folding spring 214 disposed between the separation prevention cap 213 and the leg frame 230,
When the leg frame 230 is tilted forward, the upper surface of the separation prevention cap 213 moves along the outer surface of the second fixing member 221 as the folding rotation shaft 212 axially rotates, and the separation prevention cap 213 moves along the outer surface of the second fixing member 221 . When located in the convex portion (C), the folding spring 214 is compressed and the leg frame 230 is slidably inserted into the separation prevention cap 213, and when it passes through the convex portion (C), the folding spring 214 returns and separates. Multifunctional chair, characterized in that the prevention cap 213 is also installed to return to the original position.
In claim 3,
A multifunctional chair, characterized in that the roller (R) for the hand cart is installed to the inside of the pair of second fixing members (221) by avoiding the folding shaft (261).
In claim 3,
The first fixing member 211 of the front leg folding means 210 is positioned in front of the separation preventing cap 213 so as to touch the ground together with the lower end of the second fixing member 221 in the fore-lift state and extends downward. A multifunctional chair comprising a member (211a).
In claim 1,
A height adjustment bar 241 inserted into the leg frame 230 and having a plurality of locking grooves 241a on the outer surface thereof, and a height adjustment bar mounted on the leg frame 230 and fastened to and released from the locking groove 241a ( Height adjustment means 240 having an elastic stopper 244 installed to adjust the insertion and withdrawal of 241; And,
A floor support means having a fixture 251 mounted to the lower end of the height adjustment bar 241 and a floor support member 252 mounted to the fixture 251 by a ball joint and mounted in contact with the ground ( 250); Multifunctional chair, characterized in that it further comprises at least one of.
In claim 1,
A vertical member 345 manufactured so that the lower part spreads to both sides on a plane while the upper part is fixed to the lower part of the back frame 310, the ratchet wheel 343 mounted to rotate on the lower part of the vertical member 345, the ratchet wheel The lock release wheel 344, which is mounted to rotate on the lower part of the vertical member 345 together with the 343 and has a sector-shaped release protrusion 344b protruding from the outer periphery, is fastened with the teeth 343a of the ratchet wheel 343 An angle having a pole 342 having a locking protrusion 342a as possible and a horizontal member 341 installed so that the rear part is fixed to the supporting transverse frame 110, the tip side is spread on both sides and the pole 342 rotates. Adjusting means 340; further comprising,
When the backrest frame 310 is folded toward the supporting transverse frame 110 side, the release surface 344a of the lock release wheel 344 is positioned between the pawl 342 and the ratchet wheel 343 to prevent engagement, and the backrest frame When the 310 is unfolded, the release surface 344a is deviated from between the pawl 342 and the ratchet wheel 343, and the engagement between the pawl 342 and the ratchet wheel 343 is made, so that the inclination angle of the backrest frame 310 is adjusted. Multifunctional chair, characterized in that.
In claim 1,
The folding means is fixed to the lower part of the transverse support frame 110 and has a predetermined length so that the leg part 200 is mounted, and is processed to extend downward so that the front and rear leg frames 230 are mounted on both sides. The third fixing member 260 in which the fixing grooves (G) are processed at regular intervals and the front leg fixing part 261 and the rear leg fixing part 262 are formed while the side surface and the lower surface form a certain curvature so that the 230 rotates axially. Multifunctional chair, characterized in that it is provided.
In claim 8,
A multifunctional chair, characterized in that the roller (R) for the hand cart is shaft-coupled to the inside of the pair of hind leg fixing parts (262) by avoiding the second rotation shaft hole (262a).
In claim 8,
The front leg folding means 210 and the rear leg folding means 220 are installed so that the upper part is axially rotated on the front leg fixing part 261 or the rear leg fixing part 262 and the lower part is inserted into the leg frame 30 to slide. The rotating shaft 212, the folding rotating shaft 212 is inserted through the upper surface of the hollow shape, and the upper part of the leg frame 230 is inserted and sliding through the open lower surface of the fixed cap 215, and the fixed cap and a folding spring 214 disposed between the fixing cap 215 and the leg frame 230 while being embedded in the 215,
The fixing cap 215 has a locking protrusion 215a that protrudes from the upper surface and is fastened to the fixing groove G, and when the fixing cap 215 moves by compressing the folding spring 214, the locking protrusion in the fixing groove G (215a) is provided with a locking release protrusion (215b) that protrudes on the side to separate,
It is located on the side of the locking protrusion 215a while protruding from the upper surface to guide the fixing cap 215 moving along the curved surface of the front leg fixing part 261 or the rear leg fixing part 261, the front leg fixing part 261 or the rear leg Multifunctional chair, characterized in that it further selectively comprises a guide extension (215c) processed to be adjacent to the side of the fixing portion (262).
In claim 8,
It is fixed to the rear upper surface of the third fixing member 260 and protrudes so that a plurality of angle adjustment grooves 346a are processed on the upper surface of the upper surface to rotate on the angle adjusting member 346 and the angle adjusting member 346 . The lower part is mounted and the upper part is inserted into the backrest frame 310 to slide, and the foldable rotating shaft 212 is inserted and has a hollow shape penetrating the upper surface, and the backrest frame 310 through the open upper surface. An angle adjusting means having a fixing cap 215 installed so that the lower part of the is inserted and sliding, and a folding spring 214 disposed between the fixing cap 215 and the backrest frame 310 while being embedded in the fixing cap 215 . (340); further comprising,
The fixing cap 215 protrudes from the lower surface of the locking protrusion 215a that is fastened to the angle adjustment groove 346a, and compresses the folding spring 214 to move the fixing cap 215 in the angle adjustment groove 346a. The locking projection (215a) is provided with a processing lock release projection (215b) that protrudes to the side of the detachment,
In order to guide the fixing cap 215 moving along the curved surface of the angle adjusting member 346, it is positioned on the side of the locking projection 215a while protruding from the lower surface and processed to be adjacent to the side of the angle adjusting member 346. Multifunctional chair, characterized in that it further optionally comprises an extension (215c).

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