Abstract

The present invention provides a frame structure of a portable chair, which can be conveniently used while being coupled to a chair seat for outdoor activities, such as camping, hiking, fishing, outdoor concerts, sports events, etc., the frame structure comprising: a central hub that includes a plate-shaped support, an upper body that has a plurality of upper connection tubes radially formed on the upper portion of the support, and a lower body that has a plurality of lower connection tubes radially formed on the lower portion of the support; a plurality of lower short frames that are detachably connected to the lower connection tubes and have resilient cords therein and bottom portions formed on the lower ends thereof, which make contact with the ground; a plurality of upper short frames that are detachably connected to the upper connection tubes and have resilient cords therein, wherein insertion portions formed on the upper ends thereof are inserted into the corners of the seat part of the chair seat; and a plurality of upper long frames that are detachably connected to the upper connection tubes and have bent portions formed in the middle thereof and resilient cords therein, wherein insertion portions formed on the upper ends thereof are inserted into the corners of the back support of the chair seat.

IPC Classes  ?

• A47C 4/30 - Attachment of upholstery or fabric to frames
• A47C 9/10 - Camp, travelling, or sports stools

Abstract

The present invention provides a frame structure, for a utility chair, which can be coupled to a seat and be conveniently used for outdoor activities such as camping, hiking, fishing, outdoor concerts, sporting events and the like. The frame structure comprises: a pair of lower frames of which the central parts are bent and form upper bent portions on the upper ends, and which which are coupled to each other on the upper bent portions by means of welding and have support portions, provided on both lower ends of each lower frame, come in contact with a floor surface; and a pair of upper frames of which the central parts are bent and form lower bent portions on the lower ends, of which the lower ends are coupled to the lower inner sides of the upper bent portions by means of welding, and which are coupled to each other on the lower bent portions by means of welding and have insertion portions, provided on both upper ends, connected to a seat. The present invention can be folded into a compact size and stored, thereby showing excellent portability, has a simple structure, can easily be manufactured, and has excellent durability which enables sufficient supporting of the weight of a user by having strong adhesiveness due to the disposing and coupling of frames by means of welding.

IPC Classes  ?

• A47C 4/30 - Attachment of upholstery or fabric to frames
• A47C 4/42 - Folding chairs with flexible coverings for the seat or back elements having a frame made of metal

Abstract

The present invention provides a frame structure, for a utility chair, which can be coupled to a seat and be conveniently used for outdoor activities such as camping, hiking, fishing, outdoor concerts, sporting events and the like. The frame structure comprises: a pair of lower frames of which the central parts are bent and which have upper bent portions formed on the upper ends, are disposed away from each other and are inclined such that support portions, which are provided on both lower ends of each lower frame and come in contact with a floor surface, are positioned on the outer sides of the upper bent portions; a pair of upper frames of which the lower parts are coupled to one upper sides of the pair of lower frames, respectively, by means of welding, and of which the central parts are bent and which have lower bent portions formed on the lower ends, are disposed away from each other and are inclined such that insertion portions, which are provided on both upper ends of each upper frame and connected to a seat, are positioned on the outer sides of the lower bent portions; and a support which is disposed in the horizontal direction between the upper bent portions and the lower bent portions and is coupled to the upper bent portions and lower fixing portions by means of welding.

IPC Classes  ?

• A47C 4/28 - Folding chairs with flexible coverings for the seat or back elements
• A47C 4/42 - Folding chairs with flexible coverings for the seat or back elements having a frame made of metal

Abstract

The present invention provides a frame structure for a utility chair, the frame structure comprising: a pair of coupling members which are disposed away from each other and have formed on the inner side thereof a pair of upper coupling holes and a pair of lower coupling holes, respectively; a pair of lower frames which pass through the lower coupling holes, are fixedly coupled, have a lower piece, connected between the pair of coupling members in the horizontal direction, and leg pieces, formed on both sides of the lower piece and are bent in the downward direction, and are disposed such that support portions, provided on both lower ends of each lower frame and coming in contact with a floor surface, are formed away from each other in the outer direction; and a pair of upper frames which pass through the upper coupling holes, are fixedly coupled, have an upper piece, connected between the pair of coupling members in the horizontal direction, and support pieces, formed on both sides of the upper piece and are bent in the upward direction, and are disposed such that insertion portions, provided on both upper ends of each upper frame and connected to a seat, are formed away from each other in the outer direction, wherein the pair of upper pieces, the pair of lower pieces and/or the lower piece and the upper piece are coupled together by means of welding.

IPC Classes  ?

• A47C 4/30 - Attachment of upholstery or fabric to frames
• A47C 4/42 - Folding chairs with flexible coverings for the seat or back elements having a frame made of metal

Abstract

Disclosed is a folding chair structure, comprising a chair seat frame (1), a chair leg frame (2) and a connection supporting frame (3) for movably connecting the chair seat frame (1) with the chair leg frame (2); the chair seat frame (1) is matched with seat chair fabric (5); the chair seat frame (1) comprises two front supporting rods (11) and two back leaning rods (12); the chair leg frame (2) comprises at least four supporting leg rods (21); the connection supporting frame (3) comprises two sets of connection stands (31) and one connection rod (32) laterally connecting two connection stands (31), each set of connection stands (31) is respectively fixed together by means of two V-shaped pipes (30) interlocking supporting legs (301) passing through same, and two ends of the connection rod (32) are fixed by respectively extending into the space formed by the interlocking of the two V-shaped pipes (30) of the two connection stands (31), the two supporting legs (301) of each V-shaped pipe (30) are used for the insertion and cooperation of various rod members of the chair seat frame (1) and the chair leg frame (2), and an elastic rope (4) is provided between two rod members inserted in the same V-shaped pipe (30). The folding chair constituted in such a way has a simple structure, a lower manufacturing cost and a more compact folded volume as well as the effect of being easier to carry and store.

IPC Classes  ?

• A47C 5/10 - Tubular chairs of foldable, collapsible, or dismountable type
• A47C 4/02 - Dismountable chairs
• A47C 4/28 - Folding chairs with flexible coverings for the seat or back elements
• A47C 9/10 - Camp, travelling, or sports stools

Abstract

A collapsible chair according to the present invention comprises an upper tube, a leg tube, a central tube connector, and a sheet. The upper tube is formed from a detachable section. The lower end of the upper tube is inserted into a hole in the central tube connector, and the upper end of the leg tube is inserted into a lower hole in the central tube connector. The upper end of the upper tube is fitted into a tube receptacle of a seatback. The remaining part of the upper tube, except for the upper end and the bottom end of the upper tube, does not come into contact with any part of the collapsible chair. An upper hole of the central tube connector is disposed on an upper body which rotates on a lower body having the lower hole formed thereon. The upper tube passes through the upper body and the lower body, but rotates around a cylinder which does not extend upward or downward from the central tube connector. The collapsible chair according to the present invention is compact, lightweight, and strong, and is appropriate to be stably used on an uneven outdoor ground surface during camping, hiking, fishing, outdoor concerts or sports events.

IPC Classes  ?

• A47C 9/10 - Camp, travelling, or sports stools
• A47C 4/30 - Attachment of upholstery or fabric to frames
• A47C 4/34 - Folding chairs with flexible coverings for the seat or back elements having a frame made of wood or plastics with legs pivotably connected to seat or underframe