JP2007232167A - Joint member and assembly structure using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint member, simplifying assembling work and disassembling work and an assembly structure using it. <P>SOLUTION: An expanding part 251c is inserted in the inside of a window frame part 22a, and after insertion, a main body part 21 and a joint part 251 are relatively rotated. Whereupon, the edge of the window frame part 22a is held between the corner part 251d of the expanding part 251c and a base plate 251A, and the corner part 251d of the expanding part 251c is held between a recessed part 23a and the edge of the window frame part 22a. Accordingly, the joint part 251 can be easily fitted to the main body part 21. On the other hand, in detaching it, the joint part 251 can be easily separated from the main body part 21 by simple work of further relatively rotating them in the rotating direction of one of them to pull out it. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a joint member for connecting columns supporting a shelf board and the like and an assembly structure using the joint member, and in particular, a joint member capable of simplifying assembly work and dismantling work and an assembly structure using the joint member. About the body.

The following Patent Document 1 discloses a rack used for storing things.
FIG. 12 is a perspective view of the support member of the rack as viewed from the inside.

  A space 103A having a predetermined interval is formed between the inner side surface 101A and the outer side surface 102A provided on the X2 side of the support member 100, and the inner side surface 101B and the outer side surface 102B provided on the Y1 side are formed. A space 103B having a predetermined interval is also formed between them. The spaces 103A and 103B are formed in a positional relationship orthogonal to each other, and the two spaces communicate with each other, and the spaces 103A and 103B form a continuous connected space 104 having a substantially L shape when viewed from the Z1 direction in the figure. Is formed.

  In the horizontal portion 105 of the support member 100, a space 106 is formed in a portion surrounded by the upper surface 105a, the lower surface 105b and the side surface 105c, and both side ends 106a and 106b of the space 106 are open ends. The space 106 is formed in a positional relationship orthogonal to the spaces 103A and 103B and communicates with the spaces 103A and 103B. The space 106 and 103A form a continuous connection space 107 having a substantially L shape when viewed from the X2 direction shown in the figure, and the space 106 and 103B is a continuous L shape having a substantially L shape when viewed from the Y1 direction. The connected space 108 is formed.

The vertical strut 110 made of an L-shape constituting the rack is inserted into the connecting space 104 in the Z direction in the figure and is combined with the support member 100. Similarly, the horizontal struts constituting the rack are inserted into the connecting spaces 107 and 108 in the illustrated X1 direction and Y2 direction, respectively, and combined with the support member 100 (not shown).
JP 2004-329415 A

  However, in the rack described in Patent Document 1, for example, when the support member 100 is fixed to the vertical support 110, either the plurality of holes 111, 111 formed in the vertical support 110 or the support member 100 is provided. In the state where the formed holes 109 and 109 are positioned so as to overlap with each other, since the female and male screws are inserted into the holes 111 and 111 and the holes 109 and 109 from both sides, the assembly work becomes complicated. easy.

  In addition, when a frame-like structure is formed using a plurality of horizontal struts and the support member 100, if one of the horizontal struts is completely inserted into one of the connection spaces 107, it is adjacent to this. The other horizontal strut cannot be inserted into the other connecting space 108. For this reason, the entire support member 100 is obtained by temporarily inserting the horizontal strut into one of the connecting spaces 107 and then temporarily inserting the other horizontal strut into the other connecting space 108 as described above. It is necessary to insert each in earnest after setting the temporary insertion state.

  The same applies to the case of removing a part of the horizontal struts from the completely assembled structure. With the entire support member 100 pulled out and once set to a temporary insertion state, the target horizontal struts are removed. It is necessary to extract.

  That is, the rack described in Patent Document 1 has a problem in that assembly work and dismantling work are inconvenient because it is not possible to easily mount and remove the column.

  In addition, since the connection spaces 104, 107, 108 are substantially L-shaped, the vertical struts and the horizontal struts inserted into the connection spaces 104, 107, 108 are limited to L-shapes having a two-sided structure. In the case where the vertical struts and the horizontal struts are made of paper, the two-sided structure may be weak in strength and is not suitable for a rack on which heavy objects are placed.

  Further, since the connecting spaces 104, 107, 108 are shaped as shown in FIG. 12, the connecting spaces 104, 107, 108 are arranged in the vertical direction (Z1-Z2 direction shown in the figure) or the horizontal direction (X1-X2 direction shown in the figure, Y1 shown in the figure). (Y2 direction) can only be formed. Therefore, there is also a problem that the columns can be connected only in the vertical direction or the horizontal direction.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a joint member and an assembly structure using the joint member that can easily perform an assembly operation and a disassembly operation.

  Another object of the present invention is to provide an assembly structure having a structurally strong strength even when a paper material is used for the support.

  Another object of the present invention is to provide an assembly structure in which struts having various cross-sectional shapes can be combined in various directions using a support member having a simple structure.

  The joint member according to the present invention is a joint member in which a joint portion is separable from a polyhedron body portion, and the joint portion is connected to a fitting convex portion and a support column connected to the body portion. A connecting recess is provided, and at least one surface of the main body is provided with a fitting recess that engages with the fitting protrusion and connects the joint.

  In the present invention, the joint portion can be easily connected to the main body portion only by a simple operation of inserting the fitting convex portion of the joint portion into the fitting concave portion of the main body portion.

  Moreover, when removing a joint part and a main-body part, a joint part can be easily detached from a main-body part only by the simple operation | work of pulling out the fitting convex part of a joint part from the fitting recessed part of a main-body part. .

  Moreover, since the main-body part is a polyhedron, the support | pillar to be assembled | attached can be assembled toward various directions.

  Moreover, since the main body part and the joint part have a simple structure, the manufacturing cost of the joint member can be reduced.

  In the above, the joint portion is connected to the main body portion by relatively rotating the main body portion and the joint portion with the fitting convex portion inserted in the fitting concave portion. Features. Alternatively, the fitting convex portion is formed by a convex rotation base protruding from the joint portion, and an extended portion having a planar polygonal shape that is larger than the area of the end surface of the rotation base at the tip of the rotation base. A window frame portion having a larger area than the expansion portion is formed in the fitting concave portion, and the main body portion with the rotation base portion as an axial center in a state in which the expansion portion is inserted into the window frame portion. The joint portion is relatively rotatable, and the joint portion is connected to the main body portion by relatively rotating the main body portion and the joint portion.

  For this reason, the joint part can be easily connected to the main body part by simply inserting the fitting convex part of the joint part into the fitting concave part of the main body part and relatively rotating the main body part and the joint part. Can be made. Further, when removing the main body portion and the joint portion, the joint portion can be easily detached from the main body portion only by a simple operation of relatively rotating in any one of the rotation directions and pulling it out.

  Alternatively, in the above, the joint portion is connected to the main body portion by inserting the fitting convex portion into the fitting concave portion and relatively pushing the main body portion and the joint portion. And

  In this case, the fitting convex portion has a plurality of fitting convex pieces that protrude from the joint portion and can be elastically deformed, and the fitting concave portion has a window frame portion into which the plurality of fitting convex pieces are inserted. What has is preferable.

  If it does in this way, since it can connect with a main-body part only by the simple operation | work of pushing a joint part relatively in a main-body part, a joint part can be connected to a main-body part easily and reliably.

  In the above, it is preferable that the stopper which latches the said window frame part is formed in the outer surface of each fitting convex piece.

  In the above means, the stopper of each fitting convex piece hooks the window frame portion, and securely holds and fixes between the main body portion having the window frame portion and the joint portion having the fitting convex pieces. To do. For this reason, it can prevent that a joint part remove | deviates from a main-body part during use as an assembly structure.

  In the present invention, it is preferable that the joint portion is a convex body that is formed to project vertically from the joint portion. Furthermore, it is preferable that the joining portion is any one of a columnar shape, a prismatic shape, a cylindrical shape, or a rectangular tube shape.

  By the above means, a conventional cylindrical or prismatic column that is commercially available can be used.

  Moreover, in this invention, it is preferable that the outer wall part arrange | positioned facing the said joint part and having a predetermined | prescribed clearance gap dimension is provided in the outer side of at least one of the said joint part.

  If it does in this way, when the support | pillar is accommodated in the clearance gap between a joint part and an outer wall part, one surface of a support | pillar can be inserted | pinched between a joint part and an outer wall part. For this reason, it can prevent that a support | pillar falls off from a joint member easily.

  In the above, it is preferable that a stopper is formed on at least one of the surfaces where the joint portion and the outer wall portion face each other.

  If the stopper is formed in advance, the stopper sandwiches one surface of the column more strongly, so that the column can be securely held, and it is possible to effectively prevent the column from dropping off from the joint member. In particular, when an external force that increases the interval between the vertical struts constituting the assembly structure described later is applied, the stopper generates a frictional force that relieves the external force at the portion that sandwiches the horizontal struts. It is possible to prevent the space between the columns from spreading and prevent the horizontal columns from falling off.

  Moreover, in this invention, it is preferable that the stopper which prevents the support | pillar from coming off is provided in the outer surface of the said joint part.

  For example, when the shape of the joining portion is a columnar shape or a cylindrical shape having a constant outer diameter, the protruding dimension gradually increases from the distal end of the joining portion toward the proximal end. It can be formed with an inclined surface.

  Alternatively, when the stopper has a horn shape or a truncated cone shape in which the outer diameter gradually increases from the distal end of the joint portion toward the proximal direction, the outer periphery of the joint portion A flat surface formed with a certain projecting dimension along the base end direction can be formed on the surface.

  In any of the above means, when a cylindrical column is inserted into the joint, the tip of the cylindrical column on the fitting convex portion side can be pressed from the inside by a stopper. It becomes possible to connect with a part reliably.

  Furthermore, in the above, it is preferable that the stopper is formed in a spiral shape on the outer peripheral surface of the joint portion.

  If it does in this way, the said support | pillar and a joining part can be connected easily and reliably by inserting inserting a cylindrical support | pillar with respect to a joining part. Moreover, the said support | pillar can be easily removed from a joining part by extracting from a joining part, rotating a cylindrical support | pillar.

  In the present invention, at least one surface of the main body portion where the fitting recess is not provided is provided with a fitting portion that directly supports the support column, and the fitting portion has a bottomed shape. It is preferable to consist of an outer frame part and the inner frame part provided in the center of the said outer frame part.

  If it does in this way, a support | pillar can be directly attached to a main-body part. Moreover, since the column is sandwiched between the outer frame portion and the inner frame portion of the main body, the column can be reliably assembled to the main body.

In the above, it is preferable that a stopper is formed on at least one of the surfaces where the outer frame portion and the inner frame portion face each other.
The stopper can prevent the column from coming off from the main body.

  The assembly structure of the present invention is characterized in that it can be assembled three-dimensionally using any one of the plurality of joint members and a plurality of support columns.

  Since the assembly structure of the present invention uses any one of the joint members described above, the assembly work and the disassembly work can be easily performed.

  In the present invention, for example, the support column is formed of a cylindrical or rectangular tube-shaped long body. And the open part is provided in the both ends of the said support | pillar, It is characterized by the above-mentioned. Furthermore, the column is characterized in that the cross section is formed in a U shape or an arc shape.

  As described above, in the present invention, it is possible to combine struts having various cross-sectional shapes, so that an assembly structure that can easily perform assembling work and disassembling work can be obtained.

  Moreover, in this invention, it is preferable that the edge part of the said support | pillar can be fitted in one or both of the said connection part and the said inner frame part.

  If it does in this way, a support | pillar and a joint member can be connected easily, and an assembly operation will become easy. Further, the support column and the joint member can be easily separated, and the dismantling work is simplified.

In this invention, it is preferable that the said support | pillar is formed with the paper material.
If the support is made of paper material, the weight can be reduced, and resources such as paper resources can be reused effectively, and environmental problems can be dealt with.

In the assembly structure of the present invention, it is preferable that a lid member is provided on the main body.
Providing the lid member can more reliably prevent the appearance of the assembly structure from being damaged. Further, when the assembly structure is used outside, it is possible to more reliably prevent water from accumulating inside the main body.

  According to the present invention, it is possible to provide a joint member and an assembly structure using the joint member that can be easily assembled and disassembled.

  1 is a perspective view showing an example of an assembly structure of the present invention, FIG. 2 is an exploded perspective view showing a first embodiment of the joint member of the present invention, and FIG. 3 is a view of the joint member of the first embodiment. 4 is an exploded perspective view showing a main body as a first modification, FIG. 4 is an exploded perspective view showing a main body as a second modification of the joint member of the first embodiment, and FIG. 5A is a first implementation. FIG. 5B is a plan view of the joint portion of the first embodiment when viewed from the direction of the white arrow in FIG. 5A, and FIG. 6B. These are top views which show the assembly operation | movement to the main-body part of the coupling part of 1st Embodiment. In FIG. 6, the alternate long and short dash line indicates the state before assembly, and the dotted line indicates the state after assembly.

  FIG. 7A is a sectional view showing a state after the assembly of the joint member in the first embodiment, and FIG. 7B is a sectional view showing a state after the assembly of the joint member in the first modification.

  FIGS. 8A and 8B show another embodiment of the support column, FIG. 8A is a perspective view showing the end portion of the support column having an arcuate cross section, and FIG. 8B is a perspective view showing a square tube-like support column having an opening at the end portion. FIG.

  As shown in FIG. 1, the assembly structure 10 of the present invention includes eight vertical struts 11 extending in the vertical direction (Z1-Z2 direction in the drawing) that is a vertical direction, and one horizontal direction that intersects each vertical strut 11. There are six horizontal struts 12A extending in the (X1-X2 direction in the figure) and six horizontal struts 12B extending in the other horizontal direction (Y1-Y2 direction in the figure). In the following, the horizontal struts 12A and 12B may be referred to as the horizontal struts 12 as appropriate.

  A joint member 20 is provided at the upper end (end in the Z1 direction in the figure) and lower end (end in the Z2 direction in the figure) of the vertical strut 11, and the single vertical strut 11 and the horizontal struts 12A and 12B are shown in FIG. In this form, they are combined in a positional relationship orthogonal to each other via the joint member 20.

  In the assembly structure 10, joint members 20, 20 are assembled to both ends of one horizontal strut 12 </ b> A, 12 </ b> B, and a total of four horizontal struts 12 </ b> A, 12 </ b> B and four joint members 20 constitute a set of frame bodies 13 ( Are individually formed as 13a, 13b, and 13c).

  In the embodiment shown in FIG. 1, three sets of frames 13a, 13b and 13c are formed. The set of frame bodies 13 is composed of two horizontal struts 12B having a longer length in the longitudinal direction and two lateral struts 12A having a shorter length in the longitudinal direction. It is configured in a rectangular shape. However, the length dimensions of the horizontal struts 12 may be all the same, and the three sets of frame bodies 13a, 13b, and 13c may be configured to be square in shape.

  Although not shown in FIG. 1, a flat shelf plate having a substantially rectangular shape is placed on the frames 13a to 13c. At the four corners of the shelf plate, a cutout portion formed by cutting out into a square shape is formed, and the vertical strut 11 is disposed in the cutout portion.

  Next, the joint member 20A according to the first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 2, the joint member 20 </ b> A of the present invention includes a main body portion 21 </ b> A composed of a regular hexahedron (regular cube) as a polyhedron, and a joint portion 251.

  A main body portion 21A of the joint member 20A shown in FIG. 2 has a window frame portion 22a opening in a square shape at the center of all outer surfaces 22 forming a hexahedron. In the joint member 20A shown in FIG. 2, the window frame portion 22a formed in the main body portion 21A forms a fitting recess. Each outer surface 22 is formed of a relatively hard resin material such as a plastic material, and the inside of the main body portion 21A is hollow, so that the weight and the material cost are reduced.

  Further, in the main body portion 21B of the joint member 20A shown in FIG. 3 as a first modification, the joint member 20A is formed of six outer surfaces 22 in which window frame portions 22a are formed, and a small regular cube inside the outer surface 22. The die part 23 is formed. On each surface of the die portion 23, a concave portion 23a having an area larger than the opening area of the window frame portion 22a is formed. That is, the die portion 23 is formed by bonding the six inner surfaces 23A formed with the recesses 23a. The main body portion 21B is integrally formed by attaching the six outer surfaces 22 to the surfaces of the six inner surfaces 23A excluding the concave portions 23a of the die portion 23. The die portion 23 may be formed by forming a recess 23a on each surface of a regular cube whose inside is clogged.

  A gap margin S corresponding to the depth dimension H2 of the recess 23a is formed between the edge of the window frame 22a and the recess 23a (see FIG. 5A). In the joint member 20A having the main body portion 21B shown as the first modification in FIG. 3, the fitting concave portion is formed by the window frame portion 22a, the concave portion 23a, and the clearance margin S formed in the main body portion 21B.

  Further, in the main body portion 21C of the joint member 20A shown as the second modified example in FIG. 4, among the six inner surfaces 23A forming the die portion 23, inner surfaces corresponding to the upper surface on the Z1 side in the drawing and the lower surface on the Z2 side in the drawing. They are different in that fitting portions 30 and 30 are provided instead of 23A and 23A. The fitting portion 30 is a so-called double saddle type, and is provided so that a rectangular tube-shaped inner frame portion 32 projects from the inner center of the bottomed outer frame portion 31. Note that the inner frame portion 32 itself is not limited to the cylindrical body, and may be a prism having a closed interior. Moreover, the inner frame part 32 does not need to be square, and may be a cylindrical shape or a cylindrical shape in which the inside is clogged according to the shape of the vertical column 11 or the horizontal column 12.

  The fitting portion 30 is attached to the upper surface and the bottom surface of the frame formed by the four inner surfaces 23A from the illustrated Z1 direction and the Z2 direction. As shown in FIG. 4, a bottom 23b that forms a recess 23a protrudes on the inner side of the inner surface 23A, and the bottom 34 of the fitting portion 30 is bonded to the edge of the bottom 23b of the inner surface 23A. It is firmly fixed using an agent.

  A clearance margin 33 is formed between the outer frame portion 31 and the inner frame portion 32, and the fitting portion 30 is formed by the outer frame portion 31, the inner frame portion 32, and the clearance margin 33. The dimension of the clearance margin 33 is set to be approximately the same as the thickness of the vertical strut 11, and the end of the vertical strut 11 is inserted into the clearance margin 33 so that the vertical strut 11 is connected to the joint member 20 </ b> A. Directly connected to the main body 21C. That is, in the joint member 20A having the main body portion 21C shown in FIG. 4, the vertical strut 11 positioned on the Z1 side and the vertical strut 11 positioned on the Z2 side are joined via the main body portion 21C provided in the middle thereof. It is possible.

  In addition, the structure provided in the opening part equivalent to the upper surface and lower surface of a frame formed so that the fitting part 30 may surround four sides using the four outer surfaces 22 shown in FIG.

  Further, as shown in FIG. 4, in order to prevent the vertical strut 11 from coming off, a stopper 35 made of a convex rib on at least one of the opposite surfaces of the outer frame portion 31 and the inner frame portion 32 facing each other. Is preferably formed.

Next, the joint part 251 of the joint member 20A of the first embodiment will be described.
As shown in FIGS. 2, 5, and 6, the joint portion 251 has the same shape as the outer surface 22 (square in FIG. 2), and includes a substrate 251 </ b> A that faces the outer surface 22. The substrate 251A has a joint portion (convex body) 251a that protrudes in a vertical direction from one surface and a convex rotation base 251b that protrudes in a vertical direction from the other surface. ing. In FIG. 2, the joining portion 251 a is formed in a rectangular tube shape, but may be, for example, cylindrical depending on the shape of the vertical column 11 or the horizontal column 12. Furthermore, it does not need to be cylindrical and may be formed of a cylinder or a prism.

  Further, an extended portion 251c having a planar polygonal shape (substantially square in FIG. 2) formed in an area wider than the end surface of the rotation base 251b is integrally formed at the tip of the rotation base 251b. 5B and FIG. 6, the extended part 251c is formed as a substantially square that is slightly smaller than the window frame part 22a. The length of the diagonal line of the extended part 251c made of a substantially square is longer than the length of one side of the window frame part 22a made of a square, and shorter than the length of the diagonal line of the window frame part 22a. Has been. The diameter of the rotation base 251b is preferably the same as the length of one side of the window frame portion 22a in that it can minimize axial runout when rotated, but the length of one side of the window frame 22a. If it is shorter than the dimension, it does not need to be the same dimension. In the joint portion 251, a fitting convex portion is formed by the rotation base portion 251b and the expansion portion 251c.

  Further, the protruding dimension h1 of the rotation base 251b is slightly longer than the plate thickness H1 of the window frame portion 22a (the plate thickness of the outer surface 22) (see FIG. 5A). Further, as shown in FIG. 5A, in the case of the main body portion 21B which is the first modified example, the plate thickness dimension h2 of the expansion portion 251c corresponds to the depth dimension H2 of the recess portion 23a forming the fitting recess portion. It is formed with a dimension slightly thinner than the clearance margin S.

  For this reason, in the joint member 20A having the main body portion 21A, the extension portion 251c can be inserted into the window frame portion 22a by making the extension portion 251c and the window frame portion 22a face each other in an overlapping manner. Is possible. Then, as shown in FIG. 6, after the insertion, when the main body portion 21 and the joint portion 251 are rotated relatively 90 degrees about the rotation base portion 251b, the four corner portions 251d of the expansion portion 251c are formed into the window frame. The position is set so as to overlap the four edge portions of the window frame portion 22a from the position facing the four corner portions of the portion 22a. In FIG. 6, the overlapping portion at this time is indicated by hatching.

  At this time, in the joint member 20A having the main body portion 21A shown in FIG. 7A, the four edge portions of the window frame portion 22a are sandwiched between the four corner portions 251d of the expansion portion 251c and the substrate 251A. Therefore, the joint part 251 can be attached to the main body part 21.

  At this time, in the joint member 20A having the main body portion 21B of the first modified example (same as the second modified example) shown in FIG. 7B, in addition to the form of FIG. 7A, the concave portion 23a and the window frame portion 22a are further provided. The four corners 251d of the extension 251c are sandwiched between the four edges. Therefore, the joint part 251 can be attached to the main body part 21 even with the joint member 20A having the main body part 21B of the first modification. Since the joint member 20A having the main body portion 21B according to the first modification is sandwiched doubly, the main body portion 21B and the joint portion 251 are not easily misaligned, and the joint is used as the assembly structure 10 during use. It is possible to prevent the part 251 from being detached from the main body part 21B.

  As shown in FIG. 6, the joint member 20 </ b> A having the main body portion 21 </ b> A and the joint member 20 </ b> A having the main body portion 21 </ b> B of the first modification do not protrude the substrate 251 </ b> A of the joint portion 251 from the outer surface 22. Can be superimposed on each other.

  Moreover, in the corner part of the assembly structure 10 shown in FIG. 1, although the window frame part 22a which is not used generate | occur | produces in the main body part 21 of the joint member 20, the recessed part 23a is not used from the window frame part 22a which is not used. It functions as a blindfold that hides the inside. For this reason, it can prevent that the beauty | look on the external appearance of the assembly structure 10 is impaired. Further, when the assembly structure 10 is used outside, water can be prevented from accumulating inside the main body 21.

  Or it is more preferable to fit the cover member 40 as shown in FIG. 2 to the window frame part 22a which is not used.

  The lid member 40 includes a plate-like base 40a, positioning portions 40b and 40b, and latching portions 40c and 40c provided upright at the center of the base 40a. The positioning portions 40b and 40b are long plate-like members that are parallel to one side of the window frame portion 22a and are difficult to deform in the thickness direction. The outer surface of one positioning portion 40b and the outer side of the other positioning portion 40b The distance Wb from the surface is substantially equal to the length W1 of one side of the window frame portion 22a. The latching portion 40c is plate-shaped and has an inclined surface 40c1 at its tip. The distance Wc between the outer surface of the base end portion of one latching portion 40c and the outer surface of the base end portion of the other latching portion 40c is slightly longer than the length W1 of the one side.

  If the latching | locking parts 40c and 40c are inserted in the frame of the window frame part 22a which is not used, they will be guided to the inclined surfaces 40c1 and 40c1. When the lid member 40 is further pushed in, both base end portions of the latching portions 40c, 40c are pressed by the inner frame of the window frame portion 22a, and both are bent and deformed in a direction in which both approach. Therefore, by the reaction force at this time, both base ends of the latching portions 40c and 40c are latched on the inner frame of the window frame portion 22a, and the lid member 40 is fitted to the unused window frame portion 22a.

  Thereby, it can prevent more reliably that the beauty | look on the external appearance of the assembly structure 10 is impaired. Further, when the assembly structure 10 is used outside, it is possible to more reliably prevent water from accumulating inside the main body 21.

  At the same time, the positioning portions 40b and 40b are also inserted into the frame of the window frame portion 22a at positions orthogonal to the latching portions 40c and 40c. The positioning portions 40b and 40b are long plate-like members that are not easily deformed in the plate thickness direction. For this reason, by inserting the positioning portions 40b and 40b into the frame of the window frame portion 22a, the lid member 40 can be attached to the appropriate position on the outer surface 22 of the main body portion 21A without being displaced.

  In addition, as shown by a dotted line in FIG. 2, when a screw screw hole 41 made of a female screw is provided in the lid member 40, the male screw of a caster (wheel) having a male screw as a support portion is screwed into the screw screw hole 41. By attaching it, a moving means for easily moving the assembly structure 10 can be configured.

  As described above, in the present invention, the joint portion 251 is attached to the main body portion 21 only by a simple operation of inserting the fitting convex portion on the joint portion 251 side into the fitting concave portion on the main body portion 21 side and rotating it by 90 degrees. The joint member 20A can be easily connected. Further, when removing, the joint portion 251 can be easily detached from the main body portion 21 only by a simple operation of relatively rotating 90 degrees in any rotation direction and pulling it out.

  The rotation angle at the time of mounting varies depending on the shape of the outer surface 22 of the main body 21 and the shape of the substrate 251A, but the substrate 251A overlaps the outer surface 22 of the main body 21 without protruding in the state after rotation. (Congruent) is preferable from the viewpoint of enhancing the appearance and appearance and eliminating the catch.

Next, the columns (vertical columns 11 and horizontal columns 12) will be described.
The columns such as the vertical column 11 and the horizontal column 12 are joined by a joining means such as an adhesive in a state where a plurality of paper materials are stacked one on top of another. It is formed as a long body made of a letter shape. However, the support column is not limited to one formed by joining a plurality of paper materials, and may be formed from a single paper material. As described above, if the support column is made of paper material, the weight can be reduced, and resources such as reuse of paper resources can be effectively used, and environmental problems can be dealt with. In addition, you may form the said support | pillar with other well-known materials, such as a resin material and a metal material.

  The shape of the support column is not limited to the U-shaped cross section as described above, and may be, for example, a circular arc shape (also referred to as a semicircular cross section or a C-shaped cross section) as shown in FIG. 8A. . In addition, in the case of a rectangular tube-shaped long body, for example, as shown in FIG. 8B, it is possible to use a support column having an open portion 11 a formed by partially excising part of the both ends. Of course, even in the case of a cylindrical elongated body, it is possible to use a support column in which similar open portions are formed at both ends (not shown).

  Next, assembling work and disassembling work of the column and the joint member 20A of the first embodiment will be described.

  First, for example, when the horizontal strut 12A shown in FIG. 2 is used for assembling the strut and the joint member 20A of the first embodiment, the open portion 12a side of the horizontal strut 12A is connected to the joint portion 251. The state is directed to the joint portion 251a. And if the horizontal support | pillar 12A or the coupling part 251 is moved relatively in the Z direction shown in figure which mutually approaches, both can be easily connected by inserting the joining part 251a in the inside of the open part 12a. At this time, the periphery of the joining portion 251a is held by the other three surfaces excluding the open portion 12a of the horizontal strut 12A.

  Also, the disassembly work between the support column and the joint member 20A of the first embodiment is easy. That is, if the horizontal strut 12A in a connected state is moved in one direction (the Z1 direction in FIG. 2) while maintaining its parallel posture, the joining portion 251a can be pulled out through the opening portion 12a. Can be easily separated.

  For this reason, if the some joint part 251a is mounted | worn with the outer surface 22 of the main-body part 21A, 21B, or 21C, the several vertical support | pillar 11 or the horizontal support | pillar 12A, 12B etc. can be mounted | worn with 20 A of joint members. That is, by using the joint member 20A and the support column of the first embodiment, the vertical support column 11 and the horizontal support columns 12A and 12B can be freely joined. Further, since the joint member 20A of the first embodiment and the vertical struts 11 and the horizontal struts 12A and 12B are in the joined state, the vertical struts 11 and the horizontal struts 12A and 12B can be easily removed.

  In addition, only the target column can be partially removed without removing the other vertical columns 11 and the horizontal columns 12A and 12B. Therefore, the layout of the assembly structure 10 can be easily changed.

  In addition, in terms of the ease of assembly work and dismantling work, it will be inferior to the support 11 having the open part 11a as shown in FIG. 8B and the open part 12a as shown in FIG. It is also possible to use a cylindrical or rectangular tube-like long body that does not have the open portions 11a and 12a.

  By the way, in what is shown in FIG. 2, FIG. 5, etc., the board | substrate 251A of the joint part 251 is provided with the outer wall part 251B which opposes the at least 1 or more surface of the joint part 251a in the position outside the joint part 251a. ing.

  When the horizontal strut 12A is connected to the joint member 20A of the first embodiment, one surface of the horizontal strut 12A is accommodated within the gap dimension between the joining portion 251a and the outer wall portion 251B. Here, if the gap dimension is formed to be the same as or slightly narrower than the sheet thickness dimension of the paper material forming the horizontal strut 12A, one surface of the horizontal strut 12A is connected to the joining portion 251a and the outer wall portion 251B. Can be sandwiched between them. For this reason, it is possible to prevent the horizontal strut 12A from easily falling off the joint member 20A.

  Further, as shown in FIGS. 5, 7A and 7B, a stopper 26 made of a convex rib is formed on at least one of the outer surface of the joint portion 251a and the inner surface of the outer wall portion 251B, more preferably both. In addition, since the stopper 26 can more firmly sandwich one surface of the horizontal strut 12A, it is possible to effectively prevent the horizontal strut 12A from falling off the joint member 20A.

  In particular, the stopper 26 is effective when an external force is applied to increase the distance between the vertical struts 11 and 11 constituting the assembly structure 10. That is, the stopper 26 generates a frictional force that relieves the external force in the portion that sandwiches the horizontal strut 12A, and therefore prevents the space between the vertical struts 11 and 11 from spreading and prevents the horizontal strut 12A from falling off. Is possible.

  In addition, what is necessary is just to set it as the outer wall part which a cross section becomes circular arc shape when the shape of the connection part 251a is cylindrical shape or column shape.

Next, the joint member 20B according to the second embodiment of the present invention will be described.
FIG. 9 is an exploded perspective view showing a second embodiment of the joint member of the present invention, FIG. 10 is a view of the joint portion of the joint member of the second embodiment viewed from the fitting convex portion side, and FIG. FIG. 11B is a cross-sectional view of the joint portion and the window frame portion of the joint member according to the second embodiment, showing a state before the joint portion and the main body portion are connected, and FIG. 11B is a cross-sectional view similar to FIG. 11A. It is a figure which shows the state with which the joint part and the main-body part were connected.

  The joint member 20 </ b> B of the present embodiment includes a main body 21 </ b> A having substantially the same configuration as the main body 21 </ b> A illustrated in FIG. 2 and a joint portion 252 having a configuration different from the joint portion 251.

  The main body portion 21A is different in that a part of the plurality of window frame portions 22a is not a square shape as shown in FIG. 2, but a circular shape as shown in FIG. 9 is adopted. The other configuration is the same as that of the main body 21A described above, and thus the description of the main body 21A is omitted.

Next, the joint part 252 will be described.
As shown in FIGS. 9 to 11, the joint portion 252 includes a substantially disk-shaped substrate 252 </ b> A that faces the outer surface 22 of the main body portion 21 </ b> A and has an open central portion. The substrate 252A may be a single disk whose central portion is not open. The substrate 252A includes a joining portion 252a that protrudes in a vertical direction from one surface, and a plurality of fitting protrusions 252b that protrude in the vertical direction from the other surface and are elastically deformable. It has a fitting projection 252B.

  As shown in FIGS. 11A and 11B, the joining portion 252a has a cylindrical or columnar shape with an outer diameter of a constant dimension, and is not shown, but extends from the distal end toward the proximal direction (the direction of the substrate 252A). A horn shape or a truncated cone shape whose outer diameter gradually increases can be used.

  A stopper 201 made of a convex rib having the same function as the stopper 26 shown in the first embodiment is formed on the outer peripheral surface of the joining portion 252a.

  When the joining portion 252a is cylindrical or columnar, a stopper 201 as shown in FIGS. 11A and 11B is effective. That is, in the case shown in FIGS. 11A and 11B, when the outer diameter of the joining portion 252a is a constant dimension, the outer peripheral surface of the joining portion 252a is arranged in the proximal direction (from the distal end of the joining portion 252a (the substrate 252A). A plurality of stoppers 201 each having an inclined surface 201a whose projecting dimensions gradually increase toward the direction) are provided.

  Alternatively, when the outer diameter of the joining portion 252a itself is a horn shape or a truncated cone shape gradually spreading from the distal end toward the proximal direction (the direction of the substrate 252A), the outer periphery of the joining portion 251a The surface may be provided with a plurality of stoppers (not shown) made of a flat surface formed with a certain protruding dimension along the base end direction.

  In any case, when the cylindrical vertical strut 11 or the horizontal strut 12 is attached to the joining portion 252a, the tip of the cylindrical vertical strut 11 or the horizontal strut 12 is pressed from the inside by the stopper. The vertical struts 11 and the horizontal struts 12 can be reliably connected to the joining portion 252a.

  The rib-shaped stoppers may be formed in a spiral shape on the outer peripheral surface of the joining portion 252a. However, in this case as well, in the same manner as described above, when the joining portion 252a has a constant outer diameter, a stopper with an inclined surface is preferable, and the joining portion 252a gradually increases from the distal end toward the proximal direction. In the case where the outer diameter is wide, a flat surface stopper is preferable.

  In this case, the cylindrical vertical strut 11 and the horizontal strut 12 and the joint portion 252a are attached to the splicing portion 252a while rotating the cylindrical vertical strut 11 and the horizontal strut 12 in the direction along the spiral. Can be easily and reliably connected. Then, by removing the cylindrical vertical strut 11 and the horizontal strut 12 from the joint portion 252a while rotating in the direction along the spiral, the cylindrical vertical strut 11 and the horizontal strut 12 are easily removed from the joint portion 251a. be able to.

  As shown in FIGS. 9 and 10, the fitting convex portion 252B has a configuration in which a plurality of fitting convex pieces 252b are arranged in a circular shape on the inner peripheral edge portion of the opening formed in the central portion of the substrate 252A. Between adjacent fitting convex pieces 252b, there are cutout portions 252c formed intermittently at regular intervals in the circumferential direction. As shown in FIG. 11A, the protrusion dimension h3 of each fitting convex piece 252b is longer than the plate thickness dimension H1 of the window frame part 22a of the main body part 21A.

  Each fitting convex piece 252b is formed such that the diameter φ1 of the base end portion located on the side closer to the substrate 252A is the same as or slightly smaller than the diameter φ0 of the window frame portion 22a, and on the side far from the substrate 252A. The diameter φ2 of the tip portion 252b1 positioned is smaller than the diameter φ0 of the window frame portion 22a.

  Further, a stopper 252d made of a convex rib extending in the circumferential direction is provided on the outer surface of each fitting convex piece 252b and at a position having dimensions of the substrates 252A to h4. A diameter φ3 of the virtual circle VC that can be formed by connecting the stoppers 252d in the circumferential direction is formed to be larger than the diameter of the window frame portion 22a.

  That is, as shown in FIG. 11A, when the fitting protrusions 252B are viewed in cross section, the individual fitting protrusions 252b are such that the distal end portion 252b1 is closer to the center line OO than the proximal end portion. It has a drooping shape. Note that a relationship of φ2 <φ1 ≦ φ0 <φ3 is established between the φ0 to φ3. Further, a relationship of h4 ≧ H1 is established between the plate thickness dimension H1 of the window frame portion 22a and the projection dimension h4 of the stopper 252d from the substrate 252A.

Next, assembly of the joint member 20B of the second embodiment will be described.
In order to connect the joint portion 252 to the main body portion 21A, the leading end portion 252b1 of each fitting convex piece 252b is inserted into the window frame portion 22a. Since there is a relationship of φ2 <φ0, it is possible to easily insert the distal end portion of each fitting convex piece 252b into the window frame portion 22a.

  Then, the diameter φ3 of the virtual circle VC formed by connecting the stoppers 252d is formed wider than the diameter φ0 of the window frame portion 22a, so that the stopper 252d comes into contact with the edge portion of the window frame portion 22a. Further, when the fitting convex portion 252B is pushed into the window frame portion 22a, each stopper 252d is pressed in a direction approaching the center line OO by the edge portion of the window frame portion 22a. Since notched portions 252c are formed between adjacent fitting convex pieces 252b, each fitting convex piece 252b can be bent and deformed in a direction approaching the center line OO (FIG. 11B). reference).

  As shown in FIG. 11B, due to this bending deformation, the diameter φ3 of the virtual circle VC that can connect the stoppers 252d to each other is made smaller than the diameter φ0 of the window frame portion 22a. When the joint portion 252 is further pushed in the direction of the main body portion 21A, each stopper 252d gets over the edge portion of the window frame portion 22a in the pushing direction. When each stopper 252d reaches the base end portion having a diameter φ1 smaller than the diameter φ0 of the window frame portion 22a, each fitting convex piece 252b is now centerline OO by the reaction force after the bending deformation. Each stopper 252d can hook the edge of the window frame portion 22a.

  A relationship of h4 ≧ H1 is established between the plate thickness dimension H1 of the window frame portion 22a and the projection dimension h4 of the stopper 252d from the substrate 252A. Accordingly, the window frame portion 22a is installed between the substrate 252A and the stopper 252d, and the edge of the window frame portion 22a is set to each stopper 252d in a state where the outer surface 22 of the main body portion 21A is pressed against the substrate 252A. It is held by the reaction force. And as shown to FIG. 11B, the fitting convex part 252B is fixed in the window frame part 22a in the latching position, and the joint part 252 is connected with 21 A of main bodies.

  In the above embodiment, the case where the joint portion 252 side is moved and connected to the fixed main body portion 21A has been described. However, the joint portion 252 side is fixed and the main body portion 21A is moved and connected. Even so, it is the same.

  As described above, also in the second embodiment, the joint portion 252 can be connected to the main body portion 21A only by a simple operation of relatively pushing the joint portion 252 into the window frame portion 22a. It can be easily and reliably connected to 21A. Further, since the joint portion 252 is fixed in the window frame portion 22a via the stopper 252d, the joint portion 252 can be prevented from being detached from the main body portion 21A during use as the assembly structure 10. .

  In addition, arrangement | positioning of the fitting convex piece 252b is not limited to circular shape, You may arrange | position in other shapes, such as square shape. When the fitting convex piece 252b is arranged in another shape such as a square shape, the shape of the window frame portion 22a may be matched with the arrangement shape of the fitting convex piece 252b.

  In the present embodiment, the joining portion 252a is not limited to a cylindrical shape or a columnar shape, and may be a prismatic shape or a rectangular tube shape. A cylindrical thing is used.

  In each of the above embodiments, the case where the main body portions 21A and 21B of the joint members 20A and 20B are formed of regular hexahedrons has been described. However, the present invention is not limited to regular hexahedrons. It may be a polyhedron structure composed of a plane, a regular dodecahedron, a regular icosahedron, and the like. In this case, since the vertical strut 11 and the horizontal struts 12A and 12B can be assembled in various directions, an assembly structure having a complicated shape according to the application can be provided.

  The shape of the window frame portion 22a is not limited to a square or a circle, but may be other shapes such as a triangle, a pentagon, and a hexagon. The positioning portion and the latching portion of the lid member 40 are also illustrated in FIG. It is not limited to the arrangement as shown, and the lid member 40 may be arranged so as to be fitted to the unused window frame portion 22a in accordance with the shape of the unused window frame portion 22a. . Furthermore, the fitting recess does not need to be formed in all the outer surfaces 22 of the main body portion 21, and in order to function as a joint member that joins two or more struts, the fitting recess has at least 2 What is necessary is just to be formed in the above outer surface 22. FIG.

  In the joint portion 252 shown in the second embodiment, a configuration in which an outer wall portion similar to that in the first embodiment is provided is preferable. In addition, when the shape of the joining part 252a is a cylindrical shape or a columnar shape, the outer wall part which a cross section becomes circular arc shape can be used. Furthermore, if a stopper made of a convex rib is formed on at least one of the outer surface of the joint portion 252a and the inner surface of the outer wall portion, more preferably both, the stopper can sandwich the one surface of the horizontal strut 12A more strongly, It becomes possible to prevent the horizontal strut 12A from easily falling off from the joint member 20B.

  The assembly structure 10 can be used not only as a rack for storing items, but also as various assembly furniture such as a table, a chair, and a hanger rack. Furthermore, the joint member 20 of the present invention can be used as a member for connecting struts (also called poles or pipes) when building a scaffold for construction. Moreover, when the vertical support | pillar 11 and the horizontal support | pillar 12 are formed with metal materials, such as iron, the assembly structure 10 can be used also for the pallet etc. for conveying a heavy article. When used as a planar object such as a pallet, the assembly structure 10 can be realized by combining only the horizontal struts 12 without using the vertical struts 11.

  Furthermore, you may make it incorporate a reinforcement member in the hollow part of the vertical support | pillar 11 or horizontal support | pillar 12A, 12B. By incorporating the reinforcing member, the strength of the vertical column 11 and the horizontal columns 12, 12B can be increased. For example, the vertical column 11 and the horizontal columns 12 and 12B can be prevented from being bent or deformed by an external force. As a result, the strength of the assembly structure 10 can be increased.

  Moreover, since the main-body part 21 and the coupling part 25 which comprise the joint member 20 are simple structures, the manufacturing cost of the joint member 20 can be reduced and also the manufacturing cost of the assembly structure 10 can be reduced.

The perspective view which shows an example of the assembly structure of this invention, The disassembled perspective view which shows 1st Embodiment of the joint member of this invention, The disassembled perspective view which shows the main-body part as a 1st modification of the joint member of 1st Embodiment, An exploded perspective view showing a main body as a second modification of the joint member, Sectional drawing of a part of main body part and joint part which comprise the joint member of 1st Embodiment, The top view at the time of seeing the joint part of 1st Embodiment from the arrow direction of FIG. 5A, The top view which shows the assembly operation | movement to the main-body part of the coupling part of 1st Embodiment, Sectional drawing which shows the state after the assembly of the joint member in 1st Embodiment, Sectional drawing which shows the state after the assembly of the joint member in a 1st modification, As another embodiment of the support column, a perspective view showing the end of the support column having an arcuate cross section, As another embodiment of the support column, a perspective view showing a square tube-shaped support column having an opening at the end, The disassembled perspective view which shows 2nd Embodiment of the joint member of this invention, The figure which looked at the joint part of the joint member of a 2nd embodiment from the fitting convex part side, The figure which shows the state before a joint part and a main-body part are connected in sectional drawing of the joint part and window frame part of the joint member of 2nd Embodiment, FIG. 11B is a cross-sectional view similar to FIG. The perspective view which looked at the main-body part of the conventional rack from the inside,

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Assembly structure 11 Vertical support | pillar 12, 12A, 12B Horizontal support | pillar 13, 13a, 13b, 13c Frame 14 Shelf board 20, 20A, 20B Joint member 21,21A, 21B, 21C Main-body part (joint member)
22 Outer surface 22a Window frame portion 23 Die portion 23A Inner surface 23a Recess 26, 35, 201, 252d Stopper 30 Fitting portion 31 Outer frame portion 32 Inner frame portion 33 Clearance margin 40 Lid member 201a Inclined surfaces 251, 252 Joint portion (joint member) )
251A, 252A Substrate 251B Outer wall portion 251a, 252a Joint portion (convex body)
251b Rotating base 251c Expansion portion 251d Corner portion 252B Fitting convex portion 252b Fitting convex piece 252c Notch

Claims (23)

  It is a joint member in which a joint part is provided so as to be separable from a polyhedron body part, and the joint part is provided with a fitting convex part connected to the body part and a joint part for joining the support column. And at least one surface of the main body portion is provided with a fitting recess for fitting with the fitting projection to connect the joint portion.   The joint portion is connected to the main body portion by relatively rotating the main body portion and the joint portion in a state where the fitting convex portion is inserted into the fitting concave portion. Item 1. The joint member according to Item 1.   The fitting convex portion is formed by a convex rotating base protruding from the joint portion, and an extended portion having a planar polygonal shape wider than the end surface of the rotating base at the tip of the rotating base. A window frame portion having a larger area than the extension portion is formed in the joint recess, and the main body portion and the joint with the rotation base portion as an axis center in a state where the extension portion is inserted into the window frame portion. The joint according to claim 1, wherein the joint portion is connected to the main body portion by relatively rotating the main body portion and the joint portion. Element.   The joint portion is connected to the main body portion by inserting the fitting convex portion into the fitting concave portion and relatively pressing the main body portion and the joint portion. Joint member.   The fitting projection has a plurality of fitting projections protruding from the joint portion and elastically deformable, and the fitting recess has a window frame portion into which the plurality of fitting projections are inserted. The joint member according to claim 1, wherein the joint member is provided.   The joint member according to claim 5, wherein a stopper for hooking the window frame portion is formed on an outer surface of each fitting convex piece.   The joint member according to any one of claims 1 to 6, wherein the joint portion is a convex body that is formed to protrude perpendicularly from the joint portion.   The joint member according to claim 7, wherein the joint portion is any one of a columnar shape, a prismatic shape, a cylindrical shape, and a rectangular tube shape.   The outer wall portion disposed opposite to the joint portion with a predetermined gap dimension is provided outside the joint portion, according to any one of claims 1 to 8. Joint member.   The joint member according to claim 9, wherein a stopper is formed on at least one of surfaces where the joint portion and the outer wall portion face each other.   The joint member according to claim 7, wherein a stopper is provided on the outer surface of the joint portion to prevent the column from coming off.   When the shape of the joining portion is a columnar shape or a cylindrical shape having a constant outer diameter, the stopper has an inclined surface whose protruding dimension gradually increases from the distal end to the proximal end of the joining portion. The joint member according to claim 11, wherein the joint member is formed by:   When the stopper has a horn shape or a truncated cone shape in which the outer diameter gradually increases in the proximal direction from the distal end of the joint portion, the stopper is formed on the outer peripheral surface of the joint portion. The joint member according to claim 11, wherein the joint member is formed of a flat surface formed with a certain projecting dimension along the base end direction.   The joint member according to any one of claims 11 to 13, wherein the stopper is formed in a spiral shape on an outer peripheral surface of the joint portion.   At least one surface of the main body portion where the fitting recess is not provided is provided with a fitting portion that directly supports the support column, and the fitting portion includes a bottomed outer frame portion, The joint member according to claim 1, further comprising an inner frame portion provided at a center of the outer frame portion.   The joint member according to claim 15, wherein a stopper is formed on at least one of surfaces where the outer frame portion and the inner frame portion face each other.   An assembly structure that can be assembled three-dimensionally using a plurality of joint members according to any one of claims 1 to 15 and a plurality of support columns.   The assembly structure according to claim 17, wherein the support column is formed of a cylindrical or rectangular tube-shaped long body.   The assembly structure according to claim 17 or 18, wherein open portions are provided at both ends of the support column.   The assembly structure according to any one of claims 17 to 19, wherein the support column has a U-shaped or arc-shaped cross section.   21. The assembly structure according to any one of claims 17 to 20, wherein an end portion of the support column can be fitted to one or both of the joint portion and the inner frame portion.   The assembly structure according to any one of claims 17 to 21, wherein the support column is formed of a paper material.   The assembly structure according to any one of claims 17 to 22, wherein a lid member is provided on the main body.

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