JP4273248B2 - Folding stand - Google Patents

Description

  The present invention relates to a foldable stand that is easy to assemble and fold, for example, and can be carried in a resort or the like and used conveniently outdoors.

  A foldable table that is easy to assemble and fold and is convenient to use in the field by taking it to a vacation destination or the like is known (for example, see Patent Document 1). Patent Document 1 includes a pair of left pedestal, right pedestal, and intermediate pedestal, and a top support bar is installed horizontally on the upper end of these pedestals via a fixing member. Further, the pair of left pedestal column, right pedestal column and intermediate pedestal column are connected to each other by an X-shaped link, and between the left limb column and intermediate pedestal column and between the right limb column and intermediate pedestal column. Are connected by an X-shaped crossing link.

The top plate support bar can be equipped with a foldable top plate and grill so that it can be used for barbecue surrounding the table. When not in use, the left pedestal, right pedestal, intermediate pedestal and top plate By separating the support bar and folding the link, the left pedestal, the right pedestal, and the intermediate pedestal can be folded together.
JP 2002-95530 A

  However, in Patent Document 1, the left pedestal column, the right pedestal column, the intermediate pedestal column, and the top plate support bar are separate members. In this structure, plate support bars are inserted and connected. Further, since the plurality of pedestal columns are connected to each other by an X-shaped link and a movable member, the link is rotated while sliding the movable member fitted to the pedestal column.

  Therefore, assembly and folding operations are difficult. Further, when chairs are arranged around the table and seated in a state surrounding the table, there is an inconvenience that the knee hits a link that intersects in an X shape, and it is particularly inconvenient for a person with a large body.

  The present invention has been made by paying attention to the above circumstances, and its object is to assemble and fold it easily, as well as to have a high strength in the assembled state and support the top plate and the grill in a stable state. It is to provide a folding stand.

  In order to achieve the above object, the present invention provides a left leg body 11 and a right leg body 12 that are provided symmetrically, and the left leg body 11 and the right leg body 12 connected to each other. A foldable stand comprising a pair of front and rear connecting members 13 and 14 for supporting a mounted object, and left and right connecting members 15 and 16 for connecting the longitudinal ends of the front and rear connecting members 13 and 14 to each other. The leg 11 and the right leg 12 are two rod-like legs that are pivotally supported by a pivot shaft 17 at their longitudinal intermediate portions, intersect in an X shape when expanded, and are aligned in parallel when folded. The front and rear connecting members 13, 14 are formed by members 18, 19, and the upper ends of the rod-like leg members 18, 19, the longitudinal ends of which constitute the left leg 11 and the right leg 12 by the hinge shafts 23 in the lateral direction. Is pivotally connected to the Is perpendicular to the rod-shaped leg members 18, 19 and is bent at the hinge shaft 23 as a fulcrum when folded, and is aligned in parallel with the rod-shaped leg members 18, 19, and the left and right connecting members 15, 16 are in the middle of the longitudinal direction. Are pivotally connected by a hinge mechanism 30 having a vertical hinge shaft, and both end portions are connected to the front and rear connecting members 13 and 14 via a rotatable fitting member 25. As 16 expands in the X shape, it is in a straight line while maintaining the horizontal state, and when folded, the front and rear connecting members 13 and 14 are bent inward while maintaining the horizontal state with the hinge mechanism 30 as a fulcrum. When folded, the front and rear connecting members 13 and 14, the left leg 11, the right leg 12, and the left and right connecting members 15 and 16 are connected in a parallel state. And wherein the Rukoto.

According to a second aspect of the present invention, the left and right connecting members 13 and 14 constituting the left and right connecting members 13 and 14 are operated by pulling apart the pair of front and rear connecting members 13 and 14 together with the left leg 11 and the right leg 12 of the first aspect. While the fitting members 25 of the members 15 and 16 rotate with the front and rear connecting members 13 and 14 and rotate around the hinge mechanism 30 to be in a straight line, the pair of front and rear connecting members 13 and 14 are expanded in a parallel state. The top plate 36 and the grill 39 can be selectively or combinedly mounted on the upper portion.

According to a third aspect of the present invention, in the hinge mechanism 30 of the first aspect, the other end portions of the left and right connecting members 15, 16 each having one end portion rotatably connected to the front and rear connecting members 13, 14 via the fitting member 25. The hinge bracket 31 is provided at the distal end portion of the extension piece 33 of the hinge fitting 31, and the hinge shaft 29 is fixed to the left and right connecting members 15 and 16, respectively. It is comprised from the axial support part 34 axially supported in the perpendicular direction.

  According to the present invention, the left leg and the right leg can be expanded simply by separating the front and rear connecting members while maintaining a parallel state, and the front and rear connecting members can be held in the expanded state by the left and right connecting members. Furthermore, since the left and right connecting members are connected to the front and rear connecting members via a rotatable fitting member, assembly and folding can be performed easily and smoothly, and the strength of the assembled state is high. Can be provided in a stable state.

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

  FIG. 1 is a perspective view when the foldable stand is used as a table, and FIG. 2 is a perspective view of the foldable stand itself. The foldable stand 10 includes a left leg 11 and a right leg 12, which are provided symmetrically, a pair of front and rear connecting members 13 and 14 for connecting the left leg 11 and the right leg 12, and the front and rear It is comprised from the right-and-left connection members 15 and 16 which connect the both ends of the longitudinal direction of the connection members 13 and 14. As shown in FIG.

  The left leg body 11 and the right leg body 12 have the same structure, are formed by hollow square pipes made of a light metal material such as aluminum, and the middle part in the longitudinal direction is pivotally supported by a pivot shaft 17 so as to be rotatable. It is formed by the rod-shaped leg members 18 and 19 of a book. One rod-like leg member 18 is one member, and the other rod-like leg member 19 is divided into two members, upper and lower members 19a and 19b.

The two upper and lower members 19a and 19b are connected by two bent inner and outer connecting plates 20, and a bar-shaped leg member 18 is inserted between the connecting plates 20, and the two bar-shaped leg members 18, 19 are X-shaped. Crossed. That is, the pivot shaft 17 penetrates the connecting plate 20 and the rod-shaped leg member 18 in the lateral direction, and the two rod-shaped leg members 18 and 19 are rotatable about the pivot shaft 17 so as to expand. It is X-shaped when opened and can be aligned in parallel when folded. Furthermore, leg caps 18a and 19c are provided at the lower ends of the two rod-like leg members 18 and 19, respectively.

  The front and rear connecting members 13 and 14 have the same structure, are formed by hollow square pipes made of a light metal material such as aluminum, and L-shaped hinge fittings 22 are fixed to both ends in the longitudinal direction. One end of the hinge fitting 22 protrudes downward at right angles to the front and rear connecting members 13, 14, and a hinge shaft 23 penetrates the protruding portion in the lateral direction. And the upper end part of the said 2 rod-shaped leg members 18 and 19 is connected with this hinge shaft 23 so that rotation is possible.

Therefore, the rod-like leg members 18 and 19 constituting the left leg body 11 and the right leg body 12 form a right angle with the front and rear connecting members 13 and 14 at the time of expansion, and bend around the hinge shaft 23 as a fulcrum when folded. 13 and 14 are arranged in parallel. Furthermore, as shown in FIG. 4 (a), one end portion is provided between the front and rear connecting members 13, 14 and the rod-like leg members 18, 19, and the connecting pin 23a is connected to the front and rear connecting members 13, 14 and the rod-like leg members 18, 19. A support link 24 is provided which is rotatably connected by the pivot member and whose other end is rotatably connected by a pivot pin 23b. The support link 24 functions to lock the rod-shaped leg members 18 and 19 with respect to the front and rear connecting members 13 and 14 so that the angle formed by the both becomes a right angle.

Further, as shown in FIGS. 4A and 4B, cylindrical portions 13a and 14a in which a part of a square pipe is formed in a cylindrical shape are provided at both ends of the front and rear connecting members 13 and 14, respectively. A fitting member 25 made of a short tube is rotatably fitted to the cylindrical portions 13a and 14a. Stopper members 26 fixed to the front and rear connecting members 13 and 14 are fixed to both end sides of the fitting member 25 to prevent the fitting member 25 from moving in the axial direction. The fitting member 25 is provided with a rotating shaft 27 protruding in the vertical direction. One end of each of the two left and right connecting members 15 and 16 formed by a hollow square pipe made of a light metal material such as aluminum is rotatably connected to the rotating shaft 27 in a horizontal plane. Note that the fitting member 25 may be movable in the axial direction of the front and rear connecting members 13 and 14 so that the interval between the two left and right connecting members 15 and 16 can be adjusted. It can accommodate the size of objects such as plates and grills.

As shown in FIG. 3, the other end portions of the two left and right connecting members 15 and 16 are extended in the direction between the front and rear connecting members 13 and 14, and the two left and right connecting members 15 and 16 are extended. Are pivotally connected by a hinge mechanism 30 having hinge shafts 28 and 29 in the vertical direction. The hinge mechanism 30 is formed by bending a metal plate, and a pair of attachment pieces 31 fixed to the side surfaces of the left and right connecting members 15 and 16 are provided at the upper end portion. These attachment pieces 31 are provided with extension pieces 32 that are bent at right angles to the attachment pieces 31 and extend downward. Furthermore, the pivot pieces 33 and 34 are provided at the distal ends of the attachment piece 31 and the extension piece 32 as pivotal support portions bent at right angles in the direction of overlapping with each other, and these pivot pieces 33 and 34 are hinge shafts 28. , 29 are rotatably connected. Further, the attachment piece 31 and the extension piece 32 are coupled by a reinforcing piece 35. Since the hinge mechanism 30 has an extending piece 32 extending downward at right angles to the mounting piece 31 fixed to the left and right connecting members 15 and 16, the hinge mechanism 30 against the load applied to the left and right connecting members 15 and 16 from above. And sufficient strength.

Thus, the other end portions of the two left and right connecting members 15 and 16, each having one end portion connected to the rotation shaft 27 of the fitting member 25, are connected by a hinge mechanism 30 having hinge shafts 28 and 29 in the vertical direction. When the front and rear connecting members 13 and 14 are separated (expanded) while maintaining a parallel state, the rod-like leg members 18 and 19 are expanded in an X shape, and the left and right connecting members 15 and 16 are in a horizontal state. Keep on a straight line while maintaining.

That is, the fitting member 25 rotates with respect to the front and rear connecting members 13 and 14 and keeps the left and right connecting members 15 and 16 in a horizontal state. Will not be added. Further, when the front and rear connecting members 13 and 14 are moved close to each other while being folded, the rod-like leg members 18 and 19 are aligned in parallel and the left and right connecting members 15 and 16 are supported by the hinge shafts 28 and 29 as fulcrums. While maintaining the horizontal state, it is refracted into two inward and intervenes between the front and rear connecting members 13 and 14 so as to be aligned in parallel with them.

  Further, a top plate 36 as a load is detachably mounted on the foldable stand 10 so that a foldable table can be configured. This top plate 36 is formed by connecting a plurality of strip-shaped top plate constituent members 37 of the same size made of a light metal material such as aluminum so as to be foldable by a string or the like, and the top plate constituent member 37 is connected to the front and rear connecting members 13 and 14. It is mounted on the front and rear connecting members 13 and 14 in a direction orthogonal to the longitudinal direction. A plurality of sandwiching pieces 38 made of a synthetic resin material are fixed to the back surface of the top plate constituting member 37, and these sandwiching pieces 38 are elastically fitted to the front and rear connecting members 13 and 14.

  A grill 39 is detachably mounted on the foldable stand 10 in place of the top plate 36. As for the grill 39, for example, a grill main body 41 to which a cartridge type gas cylinder 40 is connected can be mounted on the front and rear connecting members 13 and 14 of the foldable stand 10. Therefore, by removing the top plate 36 from the foldable stand 10 and placing the grill 39, a barbecue or the like can be performed outdoors.

Next, the operation of the foldable stand 10 configured as described above will be described.

  First, the procedure for assembling from the folded state will be described. With respect to the front and rear connecting members 13 and 14, the rod-shaped leg members 18 and 19 are rotated in the direction of the arrow a with the hinge shaft 23 as a fulcrum, so that the bar-shaped leg members 18 and 19 are perpendicular to the front and rear connecting members 13 and 14. Then, the support link 24 is rotated in the direction of the arrow to hold the front and rear connecting members 13 and 14 and the rod-like leg members 18 and 19 in a fixed manner.

  Next, when the rod-like leg members 18 and 19 are made vertical with respect to the ground and the front and rear connecting members 13 and 14 are separated (expanded) while maintaining a parallel state, the rod-like members connected to the front and rear connecting members 13 and 14 are used. The leg members 18 and 19 expand in an X shape with the pivot shaft 17 as a fulcrum. Therefore, the left and right connecting members 15 and 16 connected to the front and rear connecting members 13 and 14 rotate while being in a straight line while maintaining a horizontal state. At this time, since the fitting member 25 connected to the left and right connecting members 15 and 16 rotates relative to the front and rear connecting members 13 and 14, an unreasonable force is applied to the hinge mechanism 30 that connects the left and right connecting members 28. Rather, the left and right connecting members 15 and 16 are in a straight line while maintaining the horizontal state, the front and rear connecting members 13 and 14 are kept parallel, and the assembly of the folding stand 10 is completed. When the top plate 36 is placed on the foldable stand 10 and the plurality of sandwiching pieces 38 of the top plate constituting member 37 are elastically fitted to the front and rear connecting members 13 and 14, the table is completed. Further, the grill 39 can be placed on the front and rear connecting members 13 and 14 of the folding stand 10 in place of the top plate 36.

Further, when the folding stand 10 is folded, if the front and rear connecting members 13 and 14 are approached while maintaining a parallel state, the left and right connecting members 15 and 16 maintain a horizontal state with the hinge shafts 28 and 29 as fulcrums. It refracts into two inward and intervenes between the front and rear connecting members 13 and 14. Further, the rod-like leg members 18 and 19 rotate about the pivot shaft 17 as a fulcrum, so that the rod-like leg members 18 and 19 are aligned in parallel.

Next, when the support link 24 is refracted with the pivot pin 22 as a fulcrum, the rod-like leg members 18 and 19 are rotated with the hinge shaft 23 as a fulcrum with respect to the front and rear connecting members 13 and 14 in the direction of arrow b in FIG. The rod-like leg members 18 and 19 can be aligned in parallel to the front and rear connecting members 13 and 14. Further, the left and right connecting members 15 and 16 are folded in two with the hinge shafts 28 and 29 as the center, and the left and right connecting members 15 and 16 are rotated about the rotating shaft 27 as a fulcrum, so that the front and rear connecting members 13 and 14 are opposed to each other. Can be aligned in parallel. Moreover, since the top plate 36 has a structure in which a plurality of top plate components 37 are connected so as to be foldable with a string or the like, the top plate components 37 can be aligned in a stacked state.

  In addition, although the framework of the foldable stand is configured by a square pipe, it may be a round pipe and is not limited.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine the component covering different embodiment suitably.

The perspective view in the case of using the foldable stand as a table, showing the first embodiment of the present invention. The perspective view of the foldable stand which shows the same embodiment. The perspective view of the left-right connection member which shows the same embodiment. The same embodiment is shown, (a) is a perspective view of the connection state of a right-and-left connection member and a top plate, (b) is a sectional view of the A section. The front view of the state which showed the same embodiment and expanded the left leg and the right leg with respect to the front-back connection member. The perspective view of the state which showed the same embodiment and folded the top plate. The perspective view of a grill which shows the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Folding stand, 11 ... Left leg, 12 ... Right leg, 13, 14 ... Front / rear connecting member, 15, 16 ... Left / right connecting member, 18, 19 ... Bar-shaped leg member, 22 ... Hinge bracket, 23 ... Hinge Shaft, 25 ... fitting member, 28, 29 ... hinge shaft, 30 ... hinge mechanism, 36 ... top plate, 39 ... grill

Claims (3)

A left leg 11 and a right leg 12 provided symmetrically, a pair of front and rear connecting members 13 and 14 for connecting the left leg 11 and the right leg 12 and supporting a mounted object, A foldable stand comprising left and right connecting members 15 and 16 for connecting the longitudinal ends of the connecting members 13 and 14;
The left leg body 11 and the right leg body 12 are two rods that are pivotally supported at their longitudinal intermediate portions by a pivot shaft 17, intersect in an X shape when expanded, and are aligned in parallel when folded. Formed by leg members 18, 19;
The front and rear connecting members 13 and 14 are rotatably connected to the upper end portions of the rod-like leg members 18 and 19 constituting the left leg 11 and the right leg 12 at both longitudinal ends by a lateral hinge shaft 23, When expanded, the rod-shaped leg members 18 and 19 are perpendicular to each other, and when folded, the hinge shaft 23 is refracted as a fulcrum and is aligned in parallel with the rod-shaped leg members 18 and 19,
The left and right connecting members 15, 16 are pivotally connected by a hinge mechanism 30 having a longitudinal intermediate portion having a vertical hinge shaft, and both end portions are provided with fitting members 25 that are rotatable with the front and rear connecting members 13, 14. When the rod-like leg members 18 and 19 are expanded in an X shape, the rod-shaped leg members 18 and 19 are in a straight line while maintaining a horizontal state, and when folded, the hinge mechanism 30 is used as a fulcrum to maintain the horizontal state while maintaining the horizontal state. Refracted in half and is aligned parallel to the front and rear connecting members 13 and 14;
The folding stand is characterized in that when folded, the front and rear connecting members 13, 14, the left leg 11, the right leg 12, and the left and right connecting members 15, 16 are aligned in a parallel state.
The fitting member 25 of the two left and right connecting members 15 and 16 constituting the left and right connecting members 13 and 14 by an operation of pulling apart the pair of front and rear connecting members 13 and 14 together with the left leg 11 and the right leg 12 in parallel. Rotates around the hinge mechanism 30 while rotating with the front and rear connecting members 13 and 14 to be in a straight line, expands and supports the pair of front and rear connecting members 13 and 14 in a parallel state, and has a top plate 36 on the top. The foldable stand according to claim 1, wherein the grille 39 can be mounted selectively or in combination. The hinge mechanism 30 is fixed to the other ends of the left and right connecting members 15 and 16 that are rotatably connected to the front and rear connecting members 13 and 14 via fitting members 25, respectively. Hinge fittings 31 having extension pieces extending downward at right angles to 15 and 16, and shaft support portions 34 provided at the distal ends of the extension pieces 33 of the hinge fittings 31 for supporting the hinge shaft 29 in the vertical direction. The foldable stand according to claim 1, wherein

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