KR20000007626U - Folding chair - Google Patents

Abstract

The present invention relates to a folding chair, and in particular, the support surface 12 is formed on one side of the hinge sphere 11 formed at the upper end, and at the same time on the center line of the hinge sphere 11, the spring settling groove 13 is formed. Dog legs 1; Hinge piece 21 protrudes from each corner portion having a substantially triangular shape and has a configuration in which a bearing 22 settling groove 23 is formed at its center point, and the leg 1 normally has a tripod formation. A fixture 2; A torsion spring (6) for generating an elastic force so that the legs (1) are unfolded in a tripod shape at the leg fastener (2); The support piece 31 and the rotating rod 32, the support rod 33 and the hinge rod 34 has a configuration that is integrated, the rotation angle is limited to the position from the upper center line to the rear center line of the hinge rod 34 A connecting body (3) having a configuration in which a groove (35) is formed and installed between the leg and the seat fixture (2) (4); The hinge piece 42 is protruded from the center of the bottom face of the body part 41 fixed to the seat 5, and the front and rear portions of the hinge piece 42 are rotated to restrict the rotation projection 43 and the seat 5. Constrained angular rotation control tool 44 is formed and installed, the front portion of the hinge piece 42 consists of a seat fixture 4 with a handle 47 is installed to fold the legs and the seat respectively to minimize its volume In this way, the transport and mobility can be improved, and a large amount of chairs can be stored even in a narrow place, thereby reducing the transport and storage costs.

Description

Folding chair

The present invention relates to a folding chair, and more specifically, the leg supporting the seat is formed in a tripod shape that can be folded, and the seat fixture is installed to be folded within a 90 degree angle range on the tripod leg fastener described above. It is designed to improve the mobility and transportability by reducing its volume to a minimum when moving and transporting.

In general, the chair has a leg to prevent the chair itself from falling and at the same time to maintain a fixed base; It is fixed to the upper portion of the leg and is formed as a seat to allow a person to sit on the seat, wherein the seat is divided into one with and without a backrest.

By the way, in the case of a conventional chair having a backrest without a backrest, some of the height of the leg can be adjusted, but there is no chair having a configuration that can fold the seat itself and legs.

Therefore, a chair with a backrest without a backrest cannot reduce its volume at all, and thus lacks transport and mobility, and requires a large space area when storing many chairs at a certain place. There was a problem such as being.

The present invention has been devised to solve the above problems, and when the chair is to be transported and moved, it is possible to minimize the volume by folding the legs and the pedestal respectively to improve the transport and mobility as well as to improve the transport cost. The purpose is to provide a folding chair that can significantly reduce the number of chairs in a small place at a time and greatly reduce the cost of storing the chair.

An object of the present invention described above, the lower surface has a predetermined inclination angle and is projected in a state inclined to one side from the upper end so as to match the ground when unfolded to have a predetermined inclination angle on the inner side of the hinge piece of the leg fixture Three legs having a configuration in which a supporting surface is formed to hold a predetermined inclination angle and a spring settling groove is formed in the longitudinal direction on the center line of the hinge; A leg fixture having a configuration in which a hinge piece for axially hinges hinges of the legs is formed on the same angle of the main surface portion, and a bearing set groove is formed at a center point thereof, and the legs are normally formed of a tripod; Both ends of the legs are fitted on the hinges that hold the hinges of the legs so as to be hung on the inner surface of the hinge piece of the spring anchor groove and the leg fixture, respectively, so that the legs are unfolded in a tripod shape from the leg fixture. Three torsion springs for generating; On the lower part of the support piece protruding from the middle portion, a pivoting rod is formed through the bearing of the leg fastener and bolted to the leg fastener on the leg fastener, and at the upper end of the support bar protruding upwardly of the support piece, A hinge rod interposed between the hinge pieces and formed to be hinged in a horizontal direction, the connecting body being disposed between the leg and the seat fixture having a configuration in which a rotation angle restriction groove is formed at a position reaching from the top center line to the back center line of the hinge sphere; A hinge piece protrudes at a predetermined distance from a central portion of the bottom of a disc-shaped body part, and a rotation limiting protrusion selectively fitted on one side of the hinge angle groove is formed on the front portion between the hinge pieces, and the hinge piece protrudes. In the rear portion between the angled rotation control mechanism for limiting the rotation of the seat is installed under the elastic force of the torsion spring, the front of the hinge piece has a seat fixture having a configuration that is integrally installed with a handle having a "U" shape ; This can be achieved by constructing a well-known seat.

Therefore, when transporting and moving the chair, the legs and the base of the chair can be folded to minimize the volume, thereby improving the carrying and mobility as well as reducing the cost, and also increasing the amount of chair Because it can be stored in a small space, the cost of storing the chair can be reduced.

1 is a partially exploded perspective view of the chair of the present invention.

Figure 2 is a sectional view of the main portion of the chair of the present invention.

Explanation of symbols on main parts of drawing

1: leg 2: leg fixture

3: connector 4: base fixture

5: base 6: torsion spring

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

1 is a partial exploded perspective view of the chair of the present invention, Figure 2 shows a cross-sectional view of the main portion of the chair of the present invention.

Accordingly, the hinge piece 11 of the leg fastener 2 is formed on one side of the hinge tool 11 formed to protrude in a state in which the lower end surface has a predetermined inclination angle so as to coincide with the ground when it is unfolded to have a predetermined inclination angle, and inclined to one side from the upper end ( 21) three support members 12 are formed on the inner surface to maintain a predetermined inclination angle, and at the same time, the spring settling grooves 13 are formed in the longitudinal direction on the center line of the hinge 11; A leg 1;

At each corner portion having a substantially triangular shape, a hinge piece 21 for protruding hinges 11 of the legs 1 is protruded, and a center groove for placing the bearing 22 at the center point thereof ( A leg fastener (2) having a configuration in which 23 is formed and allowing the legs (1) to have a tripod formation as usual;

The hinge pieces 21 of the spring settling groove 13 and the leg fasteners 2 at both ends thereof are fitted on the hinge shafts 24 which hold the hinges 11 of the legs 1. Three torsion springs 6 installed in the form of being hung on the inner side to generate elastic force so that the legs 1 are unfolded in a tripod shape from the leg fasteners 2;

The lower part of the base piece 31 which protrudes in the substantially middle part is inserted through the center hole of the bearing 22 of the said leg fastener 2, and is connected to the bolt 37 through the fastening piece 36 on the leg fastener 2. Rotating rod 32 is formed and fixed to the upper end of the support rod 33 protruding upward of the support piece 31, the hinge rod 34 is sandwiched between the hinge pieces 42 of the seat fixture 4 It is formed in the horizontal direction, the position of the hinge rod 34 on the upper center line on the rear center line has a configuration in which the rotation angle restriction groove 35 is formed and is installed between the leg and the seat fixture (2) (4) Connecting body 3;

A hinge piece 42 protrudes at a predetermined distance from the center of the bottom surface of a disc-shaped body portion 41 directly fixed to a known seat 5, and the rotation angle restriction groove is formed at the front portion between the hinge pieces 42. Rotation restriction protrusion 43 is inserted into the (35) and selectively hanged on one side protruding form, and in the rear portion between the hinge piece 42 is a square rotation control tool 44 for limiting the rotation of the pedestal (5) Is fixed to the support protrusion 46 while receiving the elastic force of the torsion spring 45, the seat fixture having a configuration in which the handle 47 having a "U" shape is integrally installed on the front portion of the hinge piece 42 It is characterized by consisting of (4).

Referring to the effect of the present invention configured as described above are as follows.

First, the base 1 and the base 5, which are integrally provided with the leg 1 and the leg fixture 2, the connecting body 3, the angled rotation control tool 44 and the handle 47, are integrally coupled to each other. When holding the handle 47 or the base (5) of the folding chair and lifted by hand, the legs (1) of the leg fasteners (2) unless the leg (1) is tightened by a separate fixing body On the hinge piece 21, the state of being held at a predetermined angle by the restoring force of the torsion spring 6 is maintained (that is, the shape of the leg fasteners 2 and 1 is the same as the shape of the tripod unfolding like a camera. do).

In other words, the legs 1 on which the hinges 11 are respectively axially hinged to the hinge shafts 24 on the hinge pieces 21 of the leg fasteners 2 are separated outwardly by the elasticity of the torsion spring 6. At this time, one side of the hinge (11) of the leg (1) is formed because the supporting surface 12 is caught on the inner side of the hinge piece 21 of the leg fastener (2), restoring force of the torsion spring (6) Legs (1) that were opened to the outside by the rotation stops at the moment when the support surface 12 of the hinge (11) is caught on the inner side of the hinge piece 21 of the leg fastener (2), the legs (1) The predetermined angle of inclination is maintained on the leg fastener 2.

In such a state, when the chair is placed on the floor of the place where the chair is to be installed, the legs 1 are erected as if the tripods of the camera are unfolded. In this case, the bottom of the leg 1 has an inclination angle, so the floor It keeps close contact with the surface.

When the chair 5 is not placed horizontally with the leg fastener 2 when the chair is placed on the floor as described above (ie, when the seat is upright as shown in the virtual line of FIG. 2), the front surface of the upper surface of the seat 5 is When pressed, the seat fixture 4 pivots forward with the hinge rod 34 of the connecting body 3 as an axis, wherein the support body 46 of the bottom surface of the disc-shaped body portion 41 is centered. Rotation angle restriction groove 35, the end of which is rotated to the hinge rod 34 of the connecting body 3, the angled rotation control tool 44 formed in the hinge rod 34 of the connecting body 3 In the state where it reaches the locking jaw side of the end of the hinge member 42 is fitted into the rotation angle limiting groove 35 by the restoring force of the torsion spring 45 and at the same time protrudes from the front of the hinge piece 42 of the body portion 41. The rotation limiting projection 43 in a state of being fitted into the rotation angle limiting groove 35 of the connecting member 3 and the hinge rod 34 rotates. It is caught by the other side locking jaw portion of each restriction groove (35).

Thus, the seat fixture 4 is a rotation limiting projection 43 which is caught on both locking jaws of the rotation angle limiting groove 35 formed in the hinge rod 34 of the connecting body 3 as described above and Since the rotation control tool 44 is suppressed by the rotation on the connecting body 3, the base 5 fixedly installed thereon maintains a horizontal state with the leg fastener 2 as shown in the solid line of FIG. Is fixed in the state.

That is, when the upper front portion of the seat 5 is pressed, the seat fastener 4 is prevented from turning back and forth by the locking operation of the rotation limiting projection 43 and the angled rotation control tool 44. Since it is fixed in a horizontal state with the leg fastener 2, even if the user sits on the seat 5, the seat 5 and the seat fixture 4 do not fall.

At this time, since the rotating rod 32 formed below the connecting body 3 is fixed to the leg fixing unit 2 through the bearing 22 installed on the leg fixing unit 2, the connecting body 3 ) And the seat (5) and the seat fixture (4) is rotated 360 degrees in any direction on the leg fixture (2) with the connecting member (3) so that the seat (5) and the seat (5) can be rotated together with the bearing (22). The user sitting on the) can rotate the pedestal 5 in the desired direction without moving the chair at all.

On the other hand, when carrying the manufactured chair, or when the chair is to be moved to another place while using the folding chair in the same state as described above, a folding-type rotation control tool that is supported on the seat fixture (4) 2, the end of the angled rotation control tool 44 is pulled upwards as shown in the virtual line of FIG. 2 from one side locking jaw of the rotation angle limiting groove 35 formed in the hinge rod 34 of the connector 3. The lock is released from the angled rotation control tool 44 by holding the "U" shaped handle 47 fixed to the front of the hinge piece 42 of the seat fixture 4 and lifting it upward. As shown in FIG. 2, the seat 5 and the seat fixture 4 rotate in the clockwise direction on the hinge rod 34 of the connector 3.

When holding the handle 47 in such a state to lift the chair, the leg 1 greater than the elastic force of the torsion springs 6 by the weight of its own as shown in the virtual line of FIG. Since the inside of the hinge piece 21 rotates around the folding piece, the folding chair itself has a straight shape as a whole, and the volume thereof becomes smaller.

Therefore, the legs 1 and the base 5 are not jammed during transportation and transportation, and the transportation and mobility is improved, and a large amount of chairs can be stored in a narrow space, which can greatly reduce the transportation and storage costs. will be.

As described above, according to the present invention, when the chair is to be transported and moved, the legs and the pedestal can be folded to minimize the volume, thereby greatly improving the transport and mobility. Because it can be loaded, it is a very useful design such as to drastically reduce transportation and storage costs.

Claims (1)

In the hinge piece 21 of the leg fastener 2, one side of the hinge tool 11 is formed so that the lower end face has a predetermined angle of inclination so as to coincide with the ground when it is unfolded to have a predetermined angle of inclination and is inclined toward one side from the upper end. Three legs 1 having a configuration in which a supporting surface 12 is formed on the side surface to maintain a predetermined inclination angle and a spring settling groove 13 is formed in a longitudinal direction on the center line of the hinge 11. )Wow; At each corner portion having a substantially triangular shape, a hinge piece 21 for protruding hinges 11 of the legs 1 is protruded, and a center groove for placing the bearing 22 at the center point thereof ( A leg fastener (2) having a configuration in which 23 is formed and allowing the legs (1) to have a tripod formation as usual; The hinge pieces 21 of the spring settling groove 13 and the leg fasteners 2 at both ends thereof are fitted on the hinge shafts 24 which hold the hinges 11 of the legs 1. Three torsion springs 6 installed in the form of being hung on the inner side to generate elastic force so that the legs 1 are unfolded in a tripod shape from the leg fasteners 2; The lower part of the base piece 31 which protrudes in the substantially middle part is inserted through the center hole of the bearing 22 of the said leg fastener 2, and is connected to the bolt 37 through the fastening piece 36 on the leg fastener 2. Rotating rod 32 is formed and fixed to the upper end of the support rod 33 protruding upward of the support piece 31, the hinge rod 34 is sandwiched between the hinge pieces 42 of the seat fixture 4 It is formed in the horizontal direction, the position of the hinge rod 34 on the upper center line on the rear center line has a configuration in which the rotation angle restriction groove 35 is formed and is installed between the leg and the seat fixture (2) (4) Connecting body 3; A hinge piece 42 protrudes at a predetermined distance from the center of the bottom surface of a disc-shaped body portion 41 directly fixed to a known seat 5, and the rotation angle restriction groove is formed at the front portion between the hinge pieces 42. Rotation restriction protrusion 43 is inserted into the (35) and selectively hanged on one side protruding form, and in the rear portion between the hinge piece 42 is a square rotation control tool 44 for limiting the rotation of the pedestal (5) Is fixed to the support protrusion 46 while receiving the elastic force of the torsion spring 45, the seat fixture having a configuration in which the handle 47 having a "U" shape is integrally installed on the front portion of the hinge piece 42 A folding chair characterized by consisting of (4).