JP7161009B1 - Frame structure for portable fixtures - Google Patents

Abstract

A frame structure for portable fixtures capable of making the overall shape in a stored state more compact.
A frame structure includes a main frame (11), connecting blocks (12A, 12B), leg frames (13r), and support frames (14f, 14r). The main frame extends substantially horizontally in use. The connecting blocks are coupled to both ends of the main frame in the extending direction. Each proximal end of the leg frame and the support frame is detachably attached to the connecting block. The leg frame and the support frame are constructed by prismatic members. The connection block includes an assembly fitting portion and a storage fitting portion. The leg frame and the support frame are fitted in the assembly fitting portion while extending in a direction intersecting the main frame. The leg frame and the support frame are fitted in the housing fitting portion while extending along the main frame.
[Selection drawing] Fig. 4

Description

The present invention relates to a frame structure for portable furniture such as a portable chair.

Various types of portable chairs that can be easily disassembled and assembled have been devised as portable chairs for outdoor use in camping and the like (see, for example, Patent Document 1).

The portable chair described in Patent Document 1 includes a frame structure composed of a plurality of frames and connecting blocks, and a load receiving seat made of canvas or the like supported by the frame structure.
The frame structure includes a main frame that extends substantially horizontally when in use, connection blocks that are connected to both ends of the main frame, and a pair of front and rear leg frames that are detachably fitted and assembled to the lower side of each connection block. , and a pair of front and rear support frames detachably fitted and assembled to the upper side of each connecting block. Pocket portions are provided at the four corners on the back side of the load receiving sheet. The load receiving sheet is supported by the frame structure by inserting the extending ends of the support frames of the frame structure into the pocket portions at the four corners.

Further, in the frame structure described above, the leg frames and support frames can be pulled out from the connecting blocks, the pulled out frames can be bundled together with the main frame, and these can be stored in the storage bag together with the folded load receiving seat. The portable chair can be freely carried while stored in the storage bag.

JP 2021-16767 A

In the portable chair described in Patent Document 1, each frame constituting a frame structure is formed of a circular pipe. Therefore, when all the frames are bundled for storage, a large unnecessary space is created between the outer peripheral surfaces of the plurality of frames. Therefore, in the portable chair described in Patent Literature 1, there is a concern that the outer shape of the frame structure becomes large when stored, and the whole is bulky when carried.
In portable fixtures such as the above-mentioned portable chair, which are supposed to be carried around, it is desired that the frame structure can be stored more compactly.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a frame structure for a portable fixture that can be made more compact in its entirety when stored.

In order to solve the above problems, a frame structure for portable furniture according to the present invention employs the following configuration.
That is, a frame structure for a portable fixture according to the present invention comprises a main frame that extends substantially horizontally in use, a pair of connecting blocks that are coupled to both ends of the main frame in the extending direction, and A plurality of leg frames detachably attached to the connecting blocks and extending downward from each of the connecting blocks when in use; a plurality of support frames extending from the main frame in a direction intersecting with the extending direction of the main frame, wherein the leg frame and the support frame are configured by prismatic members having rectangular outer peripheries, and the connection block is formed by the leg a plurality of fitting parts for assembly into which base ends of the frame and the support frame extend in a direction intersecting the main frame; a plurality of fitting parts for storage into which the base ends are fitted while extending along the leg frame and the support frame, and the plurality of fitting parts for storage are fitted with the base ends of the leg frame and the support frame. In the closed state, the rectangular shapes of all outer peripheries of the leg frame and the support frame are aligned in substantially the same direction .

With the above configuration, when the frame structure is used, the proximal ends of the leg frame and the support frame corresponding to the plurality of fitting portions for assembly of each connecting block are fitted. As a result, the leg frames and the support frames are attached to both ends of the main frame in the extending direction. When the frame structure is disassembled and stored, the leg frames and support frames are removed from the fitting portions for assembly of the connection blocks, and the base ends of the removed leg frames and support frames are attached to the connection blocks. It fits into the fitting portion for storage. Thereby, the leg frames and support frames attached to each connecting block are arranged along the extension direction of the main frame. At this time, since the leg frame and the support frame are made of prismatic members having rectangular outer peripheries, they are arranged compactly around the extension direction of the main frame.
In addition, each housing fitting portion of the connection block, into which the leg frame and the support frame are fitted when stored, has a substantially rectangular inner peripheral surface. For this reason, it becomes possible to collect and arrange a plurality of housing fitting portions in each connecting block efficiently. Together with this, the frame structure can be made more compact in its entirety in the stored state.
In this case, it is also possible to arrange the leg frame and the support frame closer to each other in the stowed state. Therefore, when this configuration is adopted, it is possible to make the entire frame structure more compact in the stored state.

All of the housing fitting portions provided on the pair of connecting blocks may be offset around the extending direction of the main frame.

In this case, since all the fitting parts for storage are offset around the extending direction of the main frame, it is possible to prevent the leg frames and the support frames from interfering with each other in the stored state. Therefore, in the stowed state, application of unnecessary load to the leg frame and the support frame can be avoided, and deformation and damage to each frame can be prevented.

In the plurality of fitting parts for storage, when the base ends of the leg frame and the support frame are fitted, the flat surfaces of the outer periphery of the corresponding leg frames of the two connecting blocks are parallel to each other. and the flat surfaces of the outer peripheries of the corresponding support frames of the two connection blocks may be formed so as to face each other in parallel.

In this case, in the stored state, the corresponding leg frames and the corresponding support frames of the two connecting blocks can be arranged close to each other. Therefore, when this configuration is adopted, the entire frame structure can be made even more compact.

The main frame is composed of a rectangular prismatic member having an outer shape larger than that of the leg frame and the support frame. The rectangular shape of the outer periphery of the main frame is connected to the connecting block so that the rectangular shapes of the outer peripheral surfaces of the leg frame and the support frame face substantially the same direction when the main frame is fitted in the fitting portion for storage. You can do so.

In this case, in the stowed state, the rectangular shapes of the outer peripheries of the main frame, the leg frames and the support frames arranged around the extension direction of the main frame are substantially aligned. Therefore, it becomes possible to arrange the leg frames and the support frames more compactly around the extension direction of the main frame.

The main frame may be coupled to the connection block such that two diagonal corners of the outer circumference form upper and lower peaks in use.

In this case, even when a large downward load acts disproportionately on both sides in the extending direction of the main frame during use, the two diagonal corners positioned at the top and bottom of the main frame can efficiently receive the load. can be done. Therefore, when this configuration is adopted, it is possible to further suppress the bending deformation of the main frame during use.

The connection block extends linearly along the direction in which the main frame extends, and includes a rectangular tube-shaped main frame receiving portion into which the end portion of the main frame is fitted, and an upper side adjacent to the main frame receiving portion. A leg frame receiving portion which is connected to two sides and into which the leg frame is fitted, and which is adjacent to the lower side of the main frame receiving portion at a position offset from the leg frame receiving portion in the extending direction of the main frame receiving portion. A support frame receiving portion connected to the two opposite sides and into which the support frame is fitted may be provided.

In this case, since the leg frame receiving portion and the support frame receiving portion are compactly connected around the rectangular tubular main frame receiving portion, the overall connection block can be made more compact.

An elastic string is connected to the leg frame and the support frame to pull each proximal end toward the inside of the connection block, and the common leg frame or the assembly fitting portion to which the support frame is fitted. and the housing fitting portion may be formed with a guide groove through which the elastic cord is routed.

In this case, the elastic cord can be routed in the guide groove when the frame structure is put into use or stored. Therefore, the elastic cord does not become a hindrance when assembling the leg frame and the support frame, and deterioration of the elastic cord due to rubbing or the like is prevented.

In the frame structure of the portable furniture according to the present invention, the leg frames and the support frames are composed of rectangular prismatic members, so that the plurality of leg frames and the support frames can be arranged sufficiently close to each other when stored. can be done. Therefore, when the frame structure according to the present invention is adopted, the overall shape in the stored state can be made more compact.

The perspective view which looked at the portable chair of embodiment from front upper direction. The perspective view which looked at the portable chair of embodiment from the side. The perspective view which looked at the portable chair of embodiment from the downward direction. FIG. 2 is a perspective view of the frame structure of the embodiment in a stored state; The V arrow view of FIG. 4 of one connection block of embodiment. The VI arrow view of FIG. 4 of the other connection block of embodiment. FIG. 7 is a view of the frame structure in an accommodated state as seen from the arrow VII in FIG. 4 of the embodiment; The perspective view which shows the mode of accommodation of each frame with respect to one connection block of embodiment. The perspective view which shows the state of accommodation of each frame with respect to the other connection block of embodiment. The perspective view of the portable table of other embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. In addition, in description of each embodiment, the same code|symbol shall be attached|subjected to a common component.

1 to 3 are perspective views of a portable chair 1, which is one form of portable furniture. In the following description of the portable chair 1, when the user sits on the portable chair 1 in a normal posture, the side facing forward is called "front" and the opposite side is called "rear". Also, when the user sits on the portable chair 1, the side facing vertically upward is called "upper", and the opposite side is called "lower". An arrow FR pointing to the front of the portable chair 1, an arrow UP pointing to the upper side of the portable chair 1, and an arrow LH pointing to the left side of the portable chair 1 are shown at appropriate locations in the drawing.

The portable chair 1 includes a frame structure 10 and a load-bearing seat 50 supported by the frame structure 10 . The load receiving sheet 50 is made of a sheet material with high tensile strength such as canvas, and has pocket portions 51 at the four corners on the back side. The load receiving seat 50 is supported by the frame structure 10 at the pocket portions 51 at the four corners, and receives the user's buttocks and back while sitting there.

The frame structure 10 includes a main frame 11 extending substantially horizontally in use, a pair of connection blocks 12A and 12B coupled to both ends of the main frame 11 in the extending direction, and connection blocks 12A and 12B having corresponding base ends. It has leg frames 13f and 13r detachably attached to 12B, and support frames 14f and 14r. A main portion of each frame 11, 13f, 13r, 14f, 14r is composed of a square pipe (prism member) made of metal such as an aluminum alloy. The square pipe has a rectangular (for example, square) outer periphery. The main parts of the leg frames 13f, 13r and the support frames 14f, 14r are composed of rectangular pipes having substantially the same cross section. It consists of a square pipe with a larger cross section than the main part.
The connection blocks 12A and 12B are made of hard resin or a metal material such as an aluminum alloy.

The front leg frame 13f extends forward and downward from the connecting blocks 12A and 12B in use, and the rear leg frame 13r extends rearward and downward from the connecting blocks 12A and 12B in use. ing. The front leg frame 13f and the rear leg frame 13r extend forward and backward at the same angle. A grounding cap 15 made of resin is attached to the tip of each leg frame 13f, 13r. The tip of each leg frame 13f, 13r is grounded to the ground through a grounding cap 15. As shown in FIG. As a result, the frame structure 10 is grounded on the ground by a total of four leg frames 13f and 13r extending forward and backward on both sides of the main frame 11 in the extending direction.

The front support frame 14f extends forward and upward from the connecting blocks 12A and 12B in use, and the rear support frame 14r extends rearward and upward from the connecting blocks 12A and 12B in use. extended. Therefore, the front and rear support frames 14f and 14r extend in a direction that intersects the direction in which the main frame 11 extends.
Hereinafter, the front support frame 14f will be referred to as the "front support frame 14f", and the rear support frame 14r will be referred to as the "rear support frame 14r".

The rear support frame 14r is composed of a first frame 14r-1 on the base end side (lower side) and a second frame 14r-2 on the extension end side (upper side). A second frame 14r-2 is detachably connected by a spigot structure. The extension length of the rear support frame 14r is set longer than the extension length of the front support frame 14f. In addition, the tilt angle of the rear support frame 14r (the tilt angle with respect to the horizontal plane) is set larger than the tilt angle of the front support frame 14f.

The tip portions of the left and right rear support frames 14 r are inserted into the pocket portions 51 on the rear upper end side of the load receiving sheet 50 , and the tip portions of the left and right front side support frames 14 f are inserted into the pocket portions on the front end side of the load receiving sheet 50 . It is inserted into the portion 51 . As a result, the load receiving sheet 50 is supported at its four corners by a total of four rear support frames 14r and front support frames 14f extending rearwardly upward and forwardly upward. In particular, the load receiving seat 50 is supported by the rear support frame 14r, which is longer than the front support frame 14f at its rear upper end side and extends upward at a steep angle. stable support.

FIG. 4 is a perspective view of the frame structure 10 in the stored state. In FIG. 4, the leg frame 13, the front support frame 14f, and the rear support frame 14r are indicated by phantom lines for convenience of illustration. 5 is a view of one connecting block 12A viewed from arrow V in FIG. 4, and FIG. 6 is a view of the other connecting block 12B viewed from arrow VI in FIG. FIG. 7 is a view of the frame structure 10 in the housed state as viewed from arrow VII in FIG. 8 is a perspective view showing how the frames 13f, 13r, 14f, and 14r are accommodated with respect to one connecting block 12A, and FIG. 14r is a perspective view showing how 14r is stored. FIG.
The frame structure 10 has an assembled form for use shown in FIGS. 1 to 3 and an assembled form for storage shown in FIG. In the present specification, the assembled form for use refers to a form in which the frame structure 10 is assembled so that the user can actually sit on the portable chair 1 . Also, the assembled form for storage refers to a form in which the entire frame structure 10 is assembled into a compact form around the main frame 11 for portability.

Each connecting block 12A, 12B has four assembly fittings into which the base ends of the front and rear leg frames 13f, 13r, the front support frame 14f, and the rear support frame 14r are fitted in the assembled form for use. Joints 16f, 16r, 17f, 17r, and four other storages into which the base ends of the leg frames 13f, 13r, the front side support frame 14f and the rear side support frame 14r are fitted when in the storage assembled form. fitting portions 18f, 18r, 19f, and 19r. In this embodiment, the assembly fitting portions 16f, 16r, 17f, and 17r and the housing fitting portions 18f, 18r, 19f, and 19r are formed by fitting holes whose inner surfaces are at least partially rectangular. ing.

As shown in FIGS. 5 to 7, each connecting block 12A, 12B extends linearly along the extending direction of the main frame 11, and is a rectangular tube-shaped main frame to which ends of the main frame 11 are fitted and fixed. The receiving portion 20, the front and rear leg frame receiving portions 21f and 21r connected to the upper two sides of the main frame receiving portion 20, and the front and rear support frame receiving portions connected to the lower two sides of the main frame receiving portion 20. It has parts 22f and 22r.

The main frame receiving portion 20 is formed in the shape of a rectangular tube having a substantially square outer peripheral surface, and is formed such that when the frame structure 10 is in use, the two diagonal corners of the outer periphery are directed substantially upward and downward. there is When both ends of the main frame 11 in the extending direction are fitted and fixed to the respective main frame receiving portions 20 of the connection blocks 12A and 12B, the main frame 11 is formed into two pairs of outer circumferences as shown in FIGS. The corners are arranged to form upper and lower tops Tu and Tl.
Reference numeral 23 in FIGS. 5 and 6 denotes a fitting hole which is formed at the inner end of the main frame receiving portion 20 and into which the end in the extending direction of the main frame 11 is fitted and fixed. The inner peripheral surface of the fitting hole 23 is formed in a rectangular shape so as to receive the end of the main frame 11 .

The front and rear leg frame receiving portions 21f and 21r are connected to each other such that their upper ends are substantially perpendicular to each other, and the entirety of the leg frame receiving portions 21f and 21r has a substantially L-shaped side view that straddles the upper two sides of the main frame receiving portion 20. there is Assembly fitting portions 16f, 16r and storage fitting portions 18f, 18r are formed on the lower end sides of the leg frame receiving portions 21f, 21r. The front leg frame 13f can be fitted into the assembly fitting portion 16f and the housing fitting portion 18f of the front leg frame receiving portion 21f, and the assembly fitting portion of the rear leg frame receiving portion 21r. The rear leg frame 13r can be fitted into the housing fitting portion 18r and the housing fitting portion 16r.

In addition, the front and rear support frame receiving portions 22f and 22r are connected to each other with their lower ends substantially perpendicular to each other, and the overall shape of the main frame receiving portion 20 is substantially L-shaped in side view, straddling the two lower sides of the main frame receiving portion 20. It is said that The front and rear support frame receiving portions 22f and 22r are connected to the main frame receiving portion 20 at positions offset to the outside of the leg frame receiving portions 21f and 21r in the direction in which the main frame receiving portion 20 extends. Assembly fitting portions 17f, 17r and storage fitting portions 19f, 19r are formed on the upper end sides of the support frame receiving portions 22f, 22r. The front support frame 14f can be fitted into the assembly fitting portion 17f and the storage fitting portion 19f of the front support frame reception portion 22f, and the assembly fitting portion 17r of the rear support frame reception portion 22r. The rear side support frame 14r can be fitted into the housing fitting portion 19r.

Here, the assembly fitting portions 16f, 16r, 17f, and 17r are formed on the end surfaces of the leg frame receiving portions 21f and 21r and the support frame receiving portions 22f and 22r in the respective extending directions in any of the connecting blocks 12A and 12B. It is also formed with an opening. Therefore, when the corresponding frames 13f, 13r, 14f, and 14r are fitted to the assembly fitting portions 16f, 16r, 17f, and 17r of the connection blocks 12A and 12B, the left and right corresponding frames 13f, 13r, and 14r are fitted. 14f and 14r extend in the same direction from the connecting blocks 12A and 12B so as to overlap each other when viewed from the side.
The housing fitting portions 18f, 18r, 19f, and 19r are formed in slightly different positions for each of the connecting blocks 12A and 12B.

As shown in FIGS. 5 and 7, the housing fitting portions 18f and 18r of one of the connecting blocks 12A are connected to rear projections 21f-pr and 21r-pr provided at the lower ends of the leg frame receiving portions 21f and 21r. (end face on the side facing the other connecting block 12B). The rear protruding portions 21f-pr and 21r-pr protrude in the shape of rectangular blocks rearward from the rear surfaces of the lower end sides of the leg frame receiving portions 21f and 21r.

As shown in FIGS. 5 and 7, the front storage fitting portion 19f of one of the connection blocks 12A is located on the inner end face of the lateral projecting portion 22f-ps provided at the upper end of the front support frame receiving portion 22f. (the end face on the side facing the other connecting block 12B). The side protruding portion 22f-ps protrudes in a rectangular block shape from the side surface of the upper end side of the front support frame receiving portion 22f toward the side facing the other connecting block 12B. Also, as shown in FIGS. 5 and 7, the housing fitting portion 19r on the rear side of one of the connection blocks 12A is located at the front projecting portion 22r-pf provided at the upper end of the support frame receiving portion 22r on the rear side. It is formed on the inner end face (the end face on the side facing the other connecting block 12B).

As shown in FIGS. 6 and 7, the housing fitting portions 18f and 18r of the other connecting block 12B are provided at the lower ends of the front and rear leg frame receiving portions 21f and 21r. 21r-pf (the end face on the side facing one of the connecting blocks 12A). The forward protruding portions 21f-pf and 21r-pf protrude forward in the form of rectangular blocks from the front surfaces of the lower ends of the leg frame receiving portions 21f and 21r.

The housing fitting portions 19f and 19r of the other connecting block 12B are, as shown in FIGS. It is formed on each inner end face of pr (the end face on the side facing one of the connection blocks 12A). The rear protrusions 22f-pr and 22r-pr protrude rearward in the form of rectangular blocks from the rear surfaces of the upper end sides of the respective support frame receiving portions 22f and 22r.

As shown in FIG. 7, the connecting blocks 12A and 12B are connected to the main body portions of the left and right corresponding leg frame receiving portions 21f and 21r (the portions where the assembly fitting portions 16f and 16r are formed) and the support frame receiving portions. The body portions of 22f and 22r (portions where assembly fitting portions 17f and 17r are formed) overlap each other in side view, and the left and right corresponding storage fitting portions 18f, 18r, 19f and 19r are in side view. are shifted so as not to overlap each other.

Specifically, the lower front storage fitting portion 18f and the lower rear storage fitting portion 18r are arranged on the front side of the main body portion of each of the leg frame receiving portions 21f and 21r in one connection block 12A, In the other connecting block 12B, the leg frame receiving portions 21f and 21r are arranged on the rear side of the body portion. In addition, the front upper housing fitting portion 19f is arranged on the rear side of the main body portion of the support frame receiving portion 22f in one connecting block 12A, and overlaps the main body portion of the supporting frame receiving portion 22f in the other connecting block 12B. placed in position. Further, the rear upper housing fitting portion 19r is arranged on the rear side of the main body portion of the support frame receiving portion 22r in one connecting block 12A, and is arranged in front of the main body portion of the supporting frame receiving portion 22r in the other connecting block 12B. placed on the side.
Therefore, in the frame structure 10 of the present embodiment, all the housing fitting portions 18f, 18r, 19f, 19r provided on the two connecting blocks 12A, 12B are offset around the extending direction of the main frame 11. are placed.

In the frame structure 10 of the present embodiment, in the assembly mode for storage, the leg frames 13f, 13r and the front support frame 14f corresponding to the fitting portions 18f, 18r, 19f, 19r for storage of the connecting blocks 12A, 12B are attached. , and the rear support frame 14r are fitted to each other, the frames 13f, 13r, 14f, and 14r are held in a state extending parallel to the direction in which the main frame 11 extends.

In addition, in the frame structure 10 of the present embodiment, all the housing fitting portions 18f, 18r, 19f, and 19r of the left and right connecting blocks 12A and 12B have an inner rectangular shape corresponding to an outer rectangular shape of the main frame 11. It is formed so as to face substantially the same direction as the For this reason, when the corresponding frames 13f, 13r, 14f, and 14r are fitted to the fitting portions 18f, 18r, 19f, and 19r for storage of the connection blocks 12A and 12B, respectively, in the assembly mode for storage, the legs are assembled. All the rectangular shapes of the outer peripheries of the frames 13f, 13r, the front support frame 14f, and the rear support frame 14r are aligned in substantially the same direction as the rectangular shape of the outer periphery of the main frame 11. As shown in FIG.

The left and right corresponding housing fitting portions 18f, 18r, 19f, and 19r of the connecting blocks 12A and 12B are formed so that one side of the rectangular inner peripheral surface faces each other in parallel when viewed from the side. there is For this reason, when the corresponding frames 13f, 13r, 14f, and 14r are fitted to the fitting portions 18f, 18r, 19f, and 19r for storage of the connecting blocks 12A and 12B in the assembled configuration for storage, the front side The outer peripheral flat surfaces of the left and right leg frames 13f face each other in parallel, and the outer peripheral flat faces of the rear left and right leg frames 13r also face each other in parallel. At this time, the outer peripheral flat surfaces of the left and right front support frames 14f also face each other in parallel, and the outer peripheral flat faces of the left and right rear support frames 14r also face each other in parallel.

As shown in FIGS. 8 and 9, the base ends of the leg frames 13f and 13r are inserted through the assembly fitting portions 16f and 16r and the housing fitting portions 18f and 18r through the front and rear leg frames 13f and 13r. are connected to the elastic cords 40 that pull the . The elastic cord 40 is inserted, for example, inside the front and rear leg frame receiving portions 21f and 21r, and both ends pulled out from the front and rear leg frame receiving portions 21f and 21r are connected to the respective leg frames 13f and 13r.

Similarly, the base ends of the front support frame 14f and the rear support frame 14r are inserted into the front support frame 14f and the rear support frame 14r through assembly fitting portions 17f and 17r and storage fitting portions 19f and 19r. An elastic string 40 is connected to the connecting blocks 12A and 12B to be pulled inward. The elastic cord 40 is inserted, for example, inside the front and rear support frame receiving portions 22f and 22r, and both ends drawn out from the front and rear support frame receiving portions 22f and 22r are connected to the front side support frame 14f and the rear side support frame 14r. It is In the rear support frame 14r, the elastic cord 40 passes through the interior of the first frame 14r-1 on the base end side along the extension direction, and the penetrating end is connected to the second frame 14r-2 on the tip end side. It is Thus, when the second frame 14r-2 is detached from the first frame 14r-1, the elastic cord 40 prevents the first frame 14r-1 from being detached from the second frame 14r-2.
The elastic cords 40 also prevent the leg frames 13f, 13r, the front support frame 14f, and the rear support frame 14r from separating from the connecting blocks 12A, 12B.

Assembly fitting portions 16f, 16r, 17f, and 17r into which common frames are fitted in the use assembly form and the storage assembly form of the connecting blocks 12A and 12B, and storage fitting portions 18f and 18f. Between 18r, 19f, and 19r, a guide groove 45 is formed through which the elastic cord 40 is routed through the fitting portions. As a result, when changing the assembling form, when changing the fitting position of the frame between the assembly fitting portions 16f, 16r, 17f, 17r and the housing fitting portions 18f, 18r, 19f, 19r, the elastic The string 40 can be pulled around smoothly.

In addition, in the storage assembly mode, the second frame 14r-2 is pulled out from the first frame 14r-1 of the rear support frame 14r, and the second frame 14r-2 is turned so that the direction of the tip portion is reversed. It is overlaid on the outer surface of the first frame 14r-1. A locking piece 47 for connection is attached to the first frame 14r-1. The locking piece 47 has a claw for engaging with the second frame 14r-2 superimposed on the outer surface of the first frame 14r-1 to restrain the second frame 14r-2. When the rear support frame 14r is assembled for storage, the first frame 14r-1 is fitted into the fitting portions 19r for storage of the connecting blocks 12A and 12B, and the outer surface of the first frame 14r-1 is fitted. The second frame 14r-2 is locked by the locking pieces 47 while the second frame 14r-2 is superimposed on the second frame 14r-2. As a result, in the assembly mode for storage, the first frame 14r-1 and the second frame 14r-2 are arranged compactly around the extending direction of the main frame 11 in a state in which they are superimposed on each other.

As described above, in the frame structure 10 of the portable chair 1 of the present embodiment, the leg frames 13f and 131r, the front support frame 14f, and the rear support frame 14r are configured by rectangular square pipes (prism members). These frames can be fitted to assembly fitting portions 16f, 16r, 17f and 17r and storage fitting portions 18f, 18r, 19f and 19r of the connecting blocks 12A and 12B. Therefore, when the leg frames 13f, 131r, the front side support frame 14f, and the rear side support frame 14r are fitted into the fitting portions 18f, 18r, 19f, and 19r for storage, each of the frames described above is assembled. can be brought sufficiently close to each other around the extension direction of the main frame 11 . In addition, since the housing fitting portions 18f, 18r, 19f, and 19r formed in the connecting blocks 12A and 12B have substantially rectangular inner peripheral surfaces, the housing fitting portions 18f, 18r, 19f, and 19r are connected to each other. They can be arranged efficiently in the blocks 12A and 12B.
Therefore, when the frame structure 10 of the present embodiment is employed, the overall shape of the frame structure 10 in the stored state (assembled state at the time of storage) can be made compact.

Further, in the frame structure 10 of the present embodiment, as shown in FIG. 7, all the housing fitting portions 18f, 18r, 19f, and 19r provided on the two connecting blocks 12A and 12B extend in the extension direction of the main frame 11. It is offset around the circumference. Therefore, it is possible to prevent the leg frames 13f, 13r, the front support frame 14f, and the rear support frame 14r from interfering with each other in the assembly mode for storage. Therefore, when this configuration is adopted, it is possible to avoid applying an unnecessary load to the leg frames 13f, 13r, the front side support frame 14f, and the rear side support frame 14r in the assembly mode for storage, and to prevent each frame from being subjected to an unnecessary load. Deformation and damage can be prevented.

In addition, in the frame structure 10 of the present embodiment, the rectangular shapes of the outer peripheries of the leg frames 13f and 13r, the front side support frame 14f and the rear side support frame 14r all face substantially the same direction and are aligned in the stored configuration. Engagement portions 18f, 18r, 19f, and 19r for storage of the respective connection blocks 12A and 12B are formed so as to be formed. Therefore, the leg frames 13f, 13r, the front side support frame 14f, and the rear side support frame 14r can be arranged closer to each other in the assembly mode for storage. Therefore, when this configuration is adopted, it is possible to make the entire frame structure 10 more compact in the assembly mode for storage.

Further, the frame structure 10 of the present embodiment is configured so that the flat surfaces of the outer peripheries of the corresponding leg frames 13f and 13r of the two connecting blocks 12A and 12B face each other in parallel in the assembled form for storage. Fitting portions 18f and 18r for storing the connecting blocks 12A and 12B are formed. Similarly, in the storage assembly mode, the flat surfaces of the outer periphery of the front support frame 14f corresponding to the two connecting blocks 12A and 12B face each other in parallel, and the outer periphery of the rear support frame 14r is flat. The housing fitting portions 19f and 19r of the connecting blocks 12A and 12B are formed so that the faces of the connecting blocks 12A and 12B face each other in parallel. Therefore, in the stored assembly mode, the corresponding leg frames 13f and 13r of the two connecting blocks 12A and 12B and the corresponding support frames 14f and 14r can be arranged close to each other. . Therefore, when this configuration is employed, the entire frame structure 10 can be made more compact in the assembly mode for storage.

In addition, in the frame structure 10 of the present embodiment, the main frame 11 is made up of rectangular square pipes having a larger outer shape than the leg frames 13f, 13r, the front support frame 14f, and the rear support frame 14r. At both ends of the main frame 11, base ends of the leg frames 13f and 13r, the front side support frame 14f and the rear side support frame 14r are fitted into the storage fitting portions 18f, 18r, 19f and 19r. In this state, the connecting blocks 12A and 12B are arranged so that the rectangular shape of the outer circumference of the main frame 11 faces substantially the same direction as the rectangular shapes of the outer circumferences of the leg frames 13f and 13r, the front support frame 14f, and the rear support frame 14r. is coupled to Therefore, when assembled for storage, the rectangular shapes of the outer peripheries of the main frame 11, the leg frames 13f, 13r, the front support frame 14f, and the rear support frame 14r arranged around the main frame 11 are substantially aligned. Become. Therefore, when this configuration is employed, the leg frames 13f, 13r, the front support frame 14f, and the rear support frame 14r can be arranged more compactly around the extending direction of the main frame 11. FIG.

Further, in the frame structure 10 of the present embodiment, when the portable chair 1 is in use, the main frame 11 is divided into two connecting blocks so that two diagonal corners of the outer periphery of the main frame 11 form upper and lower tops Tu and Tl. 12A and 12B. For this reason, when the portable chair 1 is in use, even if a large downward load acts biasedly on both ends of the main frame 11, the two diagonal corners positioned at the upper and lower tops Tu and Tl of the main frame 11 will not move. can efficiently bear the load. Therefore, when this configuration is employed, bending deformation of the main frame 11 during use of the portable chair 1 can be further suppressed.

In addition, in the frame structure 10 of the present embodiment, each of the connection blocks 12A and 12B includes a rectangular tubular main frame receiving portion 20, leg frame receiving portions 21f and 21r, and support frame receiving portions 22f and 22r. The frame receiving portion 20 extends linearly along the extending direction of the main frame 11, and the end portion of the main frame 11 is fitted. In addition, the leg frame receiving portions 21f and 21r are connected to two adjacent upper sides of the main frame receiving portion 20, and the leg frames 13f and 13r are fitted into the support frame receiving portions 22f and 22r. are connected to two adjacent lower sides of the main frame receiving portion 20 at positions offset from the leg frame receiving portions 21f and 21r in the extending direction of the main frame receiving portion 20, and are connected to the front side support frame 14f and the rear side support frame. 14r are fitted to each other. Therefore, in the frame structure 10 of the present embodiment, the leg frame receiving portions 21f, 21r and the support frame receiving portions 22f, 22r are compactly connected around the rectangular tubular main frame receiving portion 20. FIG. Therefore, when this configuration is adopted, the overall size of the connecting blocks 12A and 12B can be made more compact.

In addition, in the frame structure 10 of the present embodiment, elastic cords 40 are connected to the leg frames 13f and 13r, the front support frame 14f and the rear support frame 14r to pull the base ends toward the inside of the connection blocks 12A and 12B. It is Assembly fitting portions 16f, 16r, 17f and 17r into which common leg frames 13f and 13r, front side support frame 14f and rear side support frame 14r are fitted, and storage fitting portions 18f, 18r and 19f, A guide groove 45 through which the elastic cord 40 is routed is formed between 19r. Therefore, the elastic cord can be routed in the guide groove 45 when changing from the assembled form for use to the assembled form for storage, or conversely, when changing from the assembled form for storage to the assembled form for use. . Therefore, when this configuration is adopted, the leg frames 13f, 13r, the front support frame 14f, and the rear support frame 14r are connected to the assembly fitting portions 16f, 16r, 17f, 17r and the storage fitting portions 18f, 18r, 18f, 18r, and 18r. The elastic cord 40 does not become a hindrance when assembling to 19f and 19r, and deterioration of the elastic cord 40 due to rubbing can be prevented.

<Other embodiments>
FIG. 10 is a perspective view showing a portable fixture of another embodiment. The portable fixture of this embodiment is a portable table 101 that can be disassembled and assembled.
The portable table 101 of this embodiment employs a frame structure 110 having substantially the same configuration as the portable chair 1 of the above embodiment.

The portable table 101 includes a frame structure 110 and a foldable top plate 70 supported by the frame structure 110 . The top plate 70 is formed in a substantially rectangular shape in a plan view in an assembled state. Connecting portions 71 that are detachably connected to the frame structure 110 are provided at the four corners of the back surface of the top plate.

The frame structure 110 includes a main frame 11 extending substantially horizontally in use, a pair of connecting blocks 12A and 12B coupled to both ends in the extending direction of the main frame 11, and connecting blocks 12A and 12B having corresponding base ends. It has leg frames 13f and 13r detachably attached to 12B and support frames 114f and 114r. A main portion of each of the frames 11, 13f, 13r, 114f, and 114r is composed of a square pipe (prism member) made of metal such as an aluminum alloy. The square pipe has a rectangular (for example, square) outer periphery. The connection blocks 12A and 12B are made of hard resin or a metal material such as an aluminum alloy.

The frame structure 110 has an assembly configuration for use and an assembly configuration for storage, as in the above embodiment. FIG. 10 shows the assembled configuration for use. In the assembled state for use, the connecting portions 71 on the back surface of the top plate 70 are fitted to the front end portions of the front and rear support frames 114f and 114r.
In the assembled state for storage, the assembled state is substantially the same as that shown in FIGS. 4 to 9 of the above-described embodiment.

Since the frame structure 110 supports the top plate 70 substantially horizontally, the front support frame 114f and the rear support frame 114r are separated from the connecting blocks 12A and 12B by the same angle when assembled. It extends upwards with a corner. The extension length of the front support frame 114f and the rear support frame 114r are set to be the same.

Since the frame structure 110 of this embodiment has the same basic configuration as the above embodiment, the same effect can be obtained, and the overall shape in the stored state (assembled state at the time of storage) is made compact. can do.

The present invention is not limited to the above-described embodiments, and various design changes are possible without departing from the gist of the present invention.
For example, in the above embodiment, two leg frames and two supporting frames are detachably fitted to each connecting block. The number of frames is not limited to two, and may be three or more as long as it is plural.
Further, in the above embodiment, the outer periphery of the main frame is formed in a rectangular shape, but the shape of the outer periphery of the main frame is not limited to a rectangular shape. It may be a shape or the like.
Furthermore, in the above embodiment, the leg frame and the support frame are made of hollow square pipes, but the leg frame and the support frame can also be made of solid prismatic members.
Moreover, the portable fixtures that employ the frame structure are not limited to the portable chair and the form table, and can be adopted to various other fixtures such as a portable article placing table.

1... Portable chair (portable furniture)
DESCRIPTION OF SYMBOLS 10... Frame structure 11... Main frame 12A, 12B... Connection block 13f, 13r... Leg frame 14f... Front side support frame (support frame)
14r... Rear support frame (support frame)
16f, 16r, 17f, 17r Assembly fitting portion 18f, 18r, 19f, 19r Storage fitting portion 20 Main frame receiving portion 21f, 21r Leg frame receiving portion 22f, 22r Supporting frame receiving portion 40 Elastic cord 45 Guide groove 101 Portable table (portable furniture)
110... Frame structure 114f, 114r... Support frame

Claims (7)

a main frame extending substantially horizontally in use;
a pair of connection blocks coupled to both ends of the main frame in the extending direction;
a plurality of leg frames having proximal ends detachably attached to each of the connecting blocks and extending downward from each of the connecting blocks in use;
a plurality of support frames whose base ends are detachably attached to each of the connection blocks and which, in a state of use, extend from each of the connection blocks in a direction intersecting with the direction in which the main frame extends;
The leg frame and the support frame are composed of prismatic members having rectangular outer peripheries,
The connecting block is
a plurality of assembling fitting portions into which base ends of the leg frames and the support frame are fitted while extending in a direction intersecting the main frame;
a plurality of housing fitting portions into which base ends of the leg frames and the support frame are fitted while extending along the extension direction of the main frame ;
In the plurality of fitting parts for storage, when the base ends of the leg frame and the support frame are fitted, the rectangular shapes of the outer peripheries of the leg frame and the support frame all face substantially the same direction. A frame structure for a portable fixture, characterized in that it is formed to be aligned . In the plurality of fitting parts for storage, when the base ends of the leg frame and the support frame are fitted, the flat surfaces of the outer periphery of the corresponding leg frames of the two connecting blocks are parallel to each other. and the flat surfaces of the outer peripheries of the support frames corresponding to the two connection blocks are formed so as to face each other in parallel. Frame structure of the described portable fixture. The main frame is composed of a rectangular prismatic member having an outer shape larger than that of the leg frame and the support frame,
Both ends of the main frame in the extending direction are in a state where the base ends of the leg frame and the support frame are fitted into the fitting portions for storage, and the rectangular shape of the outer circumference of the main frame is the same as the leg frame. 3. A frame structure for portable furniture according to claim 1 or 2 , wherein said frame structure is connected to said connecting block so as to face substantially the same direction as the rectangular shape of the outer peripheral surface of said support frame. 4. The frame structure of portable furniture according to claim 3 , wherein the main frame is connected to the connecting block so that two diagonal corners of the outer circumference form upper and lower tops in use. The connecting block is
a rectangular tube-shaped main frame receiving portion that extends linearly along the extending direction of the main frame and into which an end portion of the main frame is fitted;
a leg frame receiving portion connected to two adjacent upper sides of the main frame receiving portion and into which the leg frame is fitted;
a support frame receiving portion connected to two adjacent lower sides of the main frame receiving portion at a position offset from the leg frame receiving portion in the extending direction of the main frame receiving portion and into which the support frame is fitted; 5. The frame structure of portable furniture according to claim 4 , comprising: 6. The apparatus according to any one of claims 1 to 5, characterized in that all said housing fitting portions provided in said pair of connecting blocks are arranged with an offset around the extending direction of said main frame. Frame structure of the described portable fixture. An elastic string is connected to the leg frame and the support frame to pull each proximal end toward the inside of the connection block, and the common leg frame or the assembly fitting portion to which the support frame is fitted. A frame for portable fixtures according to any one of claims 1 to 6 , wherein a guide groove through which the elastic cord is routed is formed between the frame and the fitting portion for storage. Structure.

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