JP5687132B2 - Square pipe orthogonal connection structure - Google Patents

Description

  The present invention relates to an orthogonal connection structure of square pipes that can be freely disconnected.

  When a box body is configured by assembling a plurality of square pipes and covering a frame body or each side of the frame body with a face material, it is necessary to connect the square pipes orthogonally. Such an orthogonally connected structure of square pipes is strengthened by abutting the end face of the other square pipe against the side face of one of the pipes and performing fillet welding around the end face. However, the assembled square pipe is no longer separable and difficult to reuse. If the square pipe can be separated, if the frame or box is no longer needed, it can be disassembled into a square pipe and stored, or the disassembled square pipe can be transported to another location and reassembled to be used as a frame or box, etc. , Convenience increases. For this reason, various orthogonal connection structures that can disassemble and reuse the square pipe have been proposed for frames and boxes that do not require welding-equivalent joint strength.

  Patent Document 1 discloses an assembly-type steel box in which a surface element having a panel material attached to a frame body constituted by square pipes is removably assembled. The frame body is formed by projecting engagement pieces having a substantially J-shaped cross section or a substantially L-shaped cross section from square pipes located at both ends of one surface element, and engaging the square pipe of the other surface element with which the square pipe is abutted. A receiving portion having a substantially C-shaped cross section corresponding to the joint piece is provided, and an orthogonal connecting structure is adopted in which the engaging piece is inserted into and connected to the receiving portion (Patent Document 1 [Claim 1]). In addition, square pipes that are orthogonal at the corners are connected by covering with corner fittings (Patent Document 1, [0012] [0013]), or engaging portions having a substantially inverted U-shaped cross section at the ends of the corner pipes to be abutted. And the engagement portion is connected to a counterpart square pipe (Patent Document 1, [0017] [0018]).

JP 2004-188440 JP

  Among the rectangular pipe orthogonal connection structures disclosed in Patent Document 1, the structure in which the engagement piece is inserted into the pair of receiving portions and connected is recognized to have an advantage that the connection can be easily released. Therefore, it is necessary to use other connecting means (for example, corner metal fittings) together, and there is a problem that convenience is deteriorated after all. Further, in the configuration using the engaging portion, it is necessary to integrate the engaging portion with the square pipe in order to realize a strong connection. In this case, the engaging portion is moved from the end portion of the disassembled square pipe. The problem will be that the convenience of storage and transportation of the disassembled square pipe will be impaired.

  As will be understood from this, the orthogonal connection structure of the releasable square pipes is different from the end part of the square pipe which becomes the connection part when considering the storage and transportation of the square pipe while firmly connecting the connection parts. It is required that the square pipe can be used as it is as much as possible without attaching a member (for example, the above-mentioned corner metal fitting or engaging portion) and enlarging it. Therefore, in order to develop an orthogonal connection structure of square pipes that can be freely disconnected, studies were made.

  As a result of the study, the developed product is constructed by linking the connecting body and the regulating body in the connecting groove provided on the side surface orthogonal to each of the square pipes assembled in an orthogonal relationship, and the connecting body is orthogonal to both the side surfaces orthogonal to the surface. And a connecting body insertion portion projecting from both ends of the connecting body main body with a width wider than the constricted portion across the constricted portion, and the restricting body includes both side surfaces orthogonal to the plane. A regulation body main body portion extending orthogonally to the connection body insertion portion and a regulation body insertion portion projecting from both ends of the regulation body main body portion with a width equal to or less than the connection body insertion portion, and the connection groove includes a connection body insertion portion and In the length that the restriction body insertion part can be inserted, the insertion long hole extending in the extending direction of the side surface orthogonal to the plane and the length in which the constricted part of the coupling body is fitted, in the extending direction of the side surface orthogonal to the plane Orthogonal connection of square pipes consisting of openings that are provided in communication with the extending elongated slots. It is a structure.

  The “side surface orthogonal to the plane” refers to a side surface that intersects in an orthogonal relationship across an intersecting edge (for example, an end edge of the square pipe) among the side surfaces of each of the square pipes assembled in the orthogonal relationship. For example, when assembling in a T shape by abutting the end face of the other square pipe on the side face of one square pipe extending in the left and right directions, the side face of one square pipe abutting the other square pipe and the other The side surface of the other square pipe that intersects the side surface of the one square pipe in an orthogonal relationship with the edge of the square pipe interposed therebetween is the “side surface orthogonal to the plane”. In this case, since two sets of side surfaces orthogonal to each other are configured corresponding to the left and right symmetrical side surfaces of the other square pipe, it is desirable to use two sets of connecting bodies and restricting bodies corresponding to the respective side surfaces.

  In addition, when the corner part is configured by abutting the end face of another square pipe on the flush side surface of the square pipe with the ends assembled in an orthogonal relationship, the corner pipe flush with another square pipe The side face and the side face of another square pipe that sandwiches the end face of another square pipe and intersects the flush side face of the square pipe in an orthogonal relationship are the “side faces perpendicular to each other”. In this case, since two sets of side surfaces orthogonal to each other are configured corresponding to each of the adjacent side surfaces of another square pipe, it is desirable to use two sets of coupling bodies and restricting bodies corresponding to each of the side surfaces.

  The connecting body is inserted into the side of the side that is orthogonal to the connecting body insertion part from the insertion long hole, and the constricted part is engaged by shifting the connecting body insertion part from the insertion long hole side to the engagement long hole side. It is made to fit in a long hole, and the connection body insertion part is hooked from the inside to the side surface orthogonal to the surface. In this way, the connecting body engages the connecting body insertion portion with each of the side surfaces orthogonal to each other and restrains the positional relationship of the square pipes. As described above, the restricting body shifts the connecting body insertion portion of the connecting body to the engaging long hole side, and then inserts the restricting body insertion portion from the insertion long hole to the inside of the side surface orthogonal to the plane. Thus, the connection insertion portion of the connection body does not return to the insertion long hole side, and the restraint of the square pipe by the connection body is maintained.

  If the connection body is composed of a connection body main body portion that is stretched over the side surface orthogonal to the plane, and a connection body insertion portion that protrudes from the connection body main body portion with the constriction portion interposed therebetween, a tubular body (hollow body), Although it may be a rod or a block (solid body), a plate is preferred. As for the connection body which consists of a plate body, a connection body main-body part and a connection body insertion part are the same. Similarly, the regulating body may be a tube body (hollow body), a rod body or a block body (solid body), but a plate body is preferable. In the regulation body made of a plate body, the regulation body main body and the regulation body insertion portion are flush with each other. Regardless of the structure, at least a part of the connecting body insertion portion is obtained with the connecting body fitting the constricted portion into the engaging long hole and the restricting body inserting the restricting body insertion portion into the insertion long hole. Or it is necessary to make all contact with a control body insertion part.

  As described above, the regulating body has a function of preventing the connection insertion portion of the connection body from returning to the insertion long hole side. In order to exert the function stably, the restricting body insertion part is not only inserted into the insertion long hole and closed, but the connecting body and the restriction body are fitted with the constricted part in the engagement long hole, and the restriction body is inserted. In a state where the insertion portion is inserted into the insertion long hole, a part or all of the connecting body main body may be brought into contact with the regulating body main body. If both the connecting body and the restricting body are configured by plates, the connecting body main body part, the restricting body main body part, the connecting body inserting part, and the restricting body inserting part are all in contact with almost all of the opposing surfaces. (Depending on the shape of the coupling body and the regulation body, there may be cases where the entire structure does not contact completely).

  Specifically, the coupling body and the regulating body may be provided by allocating a positioning projection and a positioning depression that are separable and separable to the respective opposing surfaces that contact the coupling body body and the regulation body body. . As long as the positioning convex part and the positioning concave part are fitted, the respective facing surfaces that come into contact with each other cannot be displaced in the surface direction, and the coupling body in which the coupling body insertion part is engaged with each of the side surfaces orthogonal to the plane is provided. The restricting body is restrained in position, and the restricting body prevents the connecting insertion part of the connecting body from returning to the insertion long hole side. The positioning convex part and the positioning concave part, for example, bend one or both of the connecting body main body part and the regulating body main body part, or insert an interposed plate (for example, a minus driver) between the connecting body main body part and the regulating body main body part. Can be released.

  Moreover, a connection body and a control body may provide the connection body through-hole and control body through-hole which connect to a connection body main-body part and a control body main-body part. The connecting body and the regulating body are integrated by penetrating the connecting body through hole and the regulating body through hole that are connected to each other, and the connecting body in which the connecting body insertion portion is engaged with each side surface orthogonal to the surface is regulated. The body is restrained in position, and the restricting body prevents the connection insertion portion of the connection body from returning to the insertion long hole side. By removing the rivet, screw or bolt from the connecting body through hole and the regulating body through hole, the integration of the connecting body and the regulating body is released.

  In the rectangular pipe orthogonal connection structure according to the present invention, the rectangular pipes assembled in an orthogonal relationship are restrained by the coupling body, and the regulating body restrains the position of the coupling body, so that the square pipe itself may not be coupled. However, in order to stably maintain the firm connection of the square pipes assembled in an orthogonal relationship, it is preferable that the square pipes themselves are directly connected, and the connecting body restrains the position of the connected square pipes. Therefore, the square pipe to be assembled in the orthogonal relationship is the other of the side surfaces orthogonal to the surface of the square pipe to be abutted with the connecting projecting piece projecting from one end edge of the side surface of the square pipe to be abutted. It is good to insert in the connecting hole extended and provided in the extending orthogonal direction of the side surface orthogonal to the said surface. As a result, the square pipe itself is directly connected by inserting the connection protrusion into the connection hole, and the connection protrusion and the connection body are in an orthogonal relationship to suppress the backlash of each other, and the square pipe is firmly connected. Keep it stable.

  For example, in the case where the end face of the other square pipe is abutted against the side face of one of the square pipes extending left and right as described above and assembled in a T-shape, the above-mentioned connection projection piece and the connection hole together with the combination of the connection body and the regulation body It is desirable to use two sets corresponding to the symmetrical side surfaces of the other square pipe. In addition, when the corner portion is configured by abutting the end face of another square pipe against the flush side surface of the square pipe with the end portions assembled in an orthogonal relationship, the above-described connecting protrusion and the connecting piece together with the set of the connecting body and the regulating body. It is desirable to use two sets of holes corresponding to each adjacent side surface of another square pipe.

  In the present invention, when the storage and transportation of the square pipe are taken into consideration while firmly connecting the connection portions, another member (for example, the corner metal fitting or the engagement portion) is attached to the end portion of the square pipe to be the connection portion. Therefore, the present invention provides a rectangular pipe orthogonal connection structure in which the square pipe can be used in the same shape as possible. Disconnecting a square pipe is a simple task of simply inserting or pulling out the connecting body insertion part and the regulating body insertion part into the connection groove provided on each orthogonal side surface of the square pipe to be assembled. Since the engaging portion is engaged with the inside of the side surface orthogonal to the plane and the connecting body is restrained by the restricting body, the connection of the square pipe by the connecting body can be strengthened and maintained. Moreover, a connection body and a control body can be isolate | separated from a square pipe, and do not become obstructive at the time of storage or conveyance.

  The restriction of the position of the connected body by the restricting body is such that a part or all of the connected body main body part (or connected body inserting part) is brought into contact with or in contact with the restricting body main body part (or restricted body inserting part). Strongly connect square pipes by fitting positioning projections and positioning recesses assigned to the opposing surface, or by connecting rivets, screws, or bolts to the connecting body through holes and restricting body through holes that communicate with each other. Is kept stable. The connecting body through hole and the regulating body through hole that communicate with each other can also be used as a screw hole or a bolt hole that fixes a face member to be attached to the frame of the square pipe.

  The solid connection of the square pipe is stronger together with the connection by the connection body, because the square pipe itself has a connection structure in which the connection projection piece orthogonal to the connection body is inserted into the connection hole. A strong connection is stably maintained. Since the connection body and the connection protrusion are orthogonal to each other, it is possible to suppress mutual backlash. Moreover, the connection structure which inserts a connection protrusion into a connection hole has the function of the temporary assembly which maintains a square pipe in an orthogonal relationship until it connects with a connection body, and the operation | work which connects a square pipe by this invention is simplified. To.

It is a perspective view showing an example of the orthogonal connection structure which abuts the end surface of the other square pipe against the side surface of one square pipe extending in the left-right direction and is assembled in a T shape. It is sectional drawing cut | disconnected so that one square pipe might be halved in the orthogonal connection structure of this example. In the orthogonal connection structure of this example, it is the elements on larger scale showing the relationship of the magnitude | size of a connection groove | channel, a connection body insertion part, and a control body insertion part. FIG. 2 is a perspective view corresponding to FIG. 1 showing a stage in which the other square pipe is abutted against an orthogonal side surface of each of the pipes in the assembly procedure of the orthogonal connection structure of the present example. FIG. 3 is a cross-sectional view corresponding to FIG. 2 illustrating a stage in which the other square pipe is abutted against the orthogonal side surfaces of each of the pipes in the assembly procedure of the orthogonal connection structure of the present example. In the assembly procedure of the orthogonal connection structure of this example, it is the perspective view equivalent to FIG. 1 showing the step which inserts the connection body insertion part of a connection body in the connection groove | channel of one and the other each square pipe. FIG. 3 is a cross-sectional view corresponding to FIG. 2 illustrating a step of inserting a connection body insertion portion of a connection body into a connection groove of one and the other square pipes in the assembly procedure of the orthogonal connection structure of the present example. In the assembly procedure of the orthogonal connection structure of this example, it is a top view showing the step which inserts the connection body insertion part of a connection body in the connection groove | channel of one and the other each square pipe. In the assembly procedure of the orthogonal connection structure of this example, it is a perspective view equivalent to FIG. 1 showing the step of inserting the restriction body insertion part of the restriction body into the connection groove of one and the other square pipes. FIG. 3 is a cross-sectional view corresponding to FIG. 2 illustrating a step of inserting a regulating body insertion portion of a regulating body into a coupling groove of one and the other square pipes in the assembly procedure of the orthogonal coupling structure of the present example. FIG. 9 is a plan view corresponding to FIG. 8 illustrating a step of inserting a regulating body insertion portion of a regulating body into the coupling groove of each of the one and the other square pipes in the assembly procedure of the orthogonal coupling structure of the present example. In the orthogonal connection structure of this example, it is a perspective view equivalent to FIG. 1 showing a state in which face materials are screwed to a connection body and a regulation body. It is a perspective view showing the other example of the orthogonal connection structure which abuts the end surface of another square pipe on the flush side surface of the square pipe which assembled | attached the edge part by orthogonal relationship, and comprises a corner part. In the orthogonal connection structure of another example, it is a perspective view showing the state which has screwed the face material to the connection body and the regulation body. In the orthogonal connection structure of another example, it is a perspective view showing the assembly | attachment relationship of each square pipe, a connection body, and a control body.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the present invention, for example, as seen in FIGS. 1 and 2, the end face of the other square pipe 1 is abutted on the side surface 21 orthogonal to the surface of one square pipe 2 extending in the left-right direction and assembled in a T-shape. For cases it is typically applied. The present invention is characterized in that it can be assembled and disassembled while being in such a typical assembling form.

  The connecting body 6 and the restricting body 7 include a connecting groove 22 provided on a side surface 21 perpendicular to the surface of one of the square pipes 2 extending left and right, and an end of the square pipe 1 whose end surface is abutted against the side surface 21 orthogonal to the surface. It is bridged across a connecting groove 12 provided on a side surface 11 of the square pipe 2 that intersects the side surface 21 of the square pipe 2 that is orthogonal to the surface of the square pipe 2 across the edge. For convenience of explanation, in FIG. 2, only the connecting body 6 on the front side of the paper and the regulation body 7 on the back side of the paper are shown on the left side of the paper with the square pipe 1 extending in the vertical direction on the paper.

  The connector 6 is a thin metal plate composed of a connector main body 61, a constricted portion 65, and a connector insert 62, and the width of the insertion slots 121, 221 of the connecting grooves 12, 22 whose thickness will be described later. Or equal to the width of the engagement slot 122,222. The connecting body main body 61 has a front-view trapezoidal shape (see FIG. 2) orthogonal to both the side surfaces 11 and 21 orthogonal to the above-mentioned planes, with the short upper side on the lower side and the long lower side on the upper side, and the oblique sides are orthogonal to each other. In contact with the side surfaces 11 and 21, the connecting body insertion portions 62 and 62 at both ends are inserted into the connecting grooves 12 and 22 and are bridged.

  The connecting body main body 61 is provided with a pair of positioning convex parts 63, 63 at a side near the long lower side and symmetrical with respect to the line connecting the midpoints of the upper and lower sides of the connecting body main body 61. Yes. The positioning convex portion 63 of this example is a portion that is punched from one side (the front side of the paper surface in FIG. 2) of the linking body main body 61 and bulges to the opposite side (the back side of the paper surface in FIG. 2). Further, the connecting body main body 61 of the present example is connected to the connecting body through hole 64 at a line symmetric position across the line connecting the middle points of the upper and lower sides of the connecting body main body 61 on the short upper side. Is provided. The connecting body through hole 64 allows a male screw 81 for fixing the position of a face material 8 to be described later to pass therethrough.

  The connecting body insertion portion 62 is longer than the constricted portion 65 with the constricted portion 65 interposed therebetween, and is shorter than the end edge serving as the oblique side of the connecting body main portion 61 (see FIG. 3). The shape is a trapezoidal shape (see FIG. 2) protruding from both ends, with the short upper side facing the connecting grooves 11 and 12, the long lower side facing the edge of the connecting body main body 61, and the constricted portion 65 sandwiched therebetween. . The length of the constricted portion 65 is the same length as the lower side of the connector insertion portion 62. In other words, the connecting body insertion part 62 in this example can be rephrased as a shape in which a ridge part of a right-angled triangular triangle is projected from a short side of a rectangle having the lower side as a long side.

  The constricted portion 65 is sandwiched between the end edge of the connecting body main body portion 61 and the upper side of the connecting body insertion portion 62, and is shorter than the upper side of the connecting body insertion portion 62, and the end edge of the connecting body main body portion 61 And a slit between the upper side of the connecting body insertion part 62. The thickness of the constricted portion 65 is equal to the plate thickness of the square pipes 1 and 2 provided with the engaging slots 122 and 222 of the connecting grooves 12 and 22. For this reason, since the constricted part 65 engaged with the engagement long holes 122 and 222 of the connection grooves 11 and 12 is restrained in the engagement state, as a result, the wobbling of the connection body 6 is also suppressed.

  In the connecting body 6 of this example, the connecting body insertion parts 62 and 62 provided at both ends of the connecting body main body 61 are symmetrical with respect to a line connecting the midpoints of the upper and lower sides of the connecting body main body 61. In addition, the connecting body main body 61 is bridged at an inclination of 45 degrees on both the side surfaces 11 and 21 orthogonal to each other. This means that even if the connecting body 6 is turned upside down and turned upside down, it can be bridged over both the side surfaces 11 and 21 which are orthogonal to each other. In this case, since the protruding direction of the positioning convex portion 63 is also reversed in the front-rear direction, the restricting body 7 corresponding to the positioning convex portion 63 is also turned upside down, and the concave direction of the positioning concave portion 73 is reversed.

  The restricting body 7 is a thin metal plate composed of a restricting body main body 71 and a restricting body insertion portion 72. The restricting body main body 71 is identical in shape to the connecting body main body 61 in front view. Further, the restriction pair insertion portion 72 has a thickness equal to the width of the insertion long holes 121 and 221 of the connecting grooves 12 and 22 described later. Thus, the connection body 6 and the regulation body 7 of this example are the same thickness. The regulating body main body 71 is a front view trapezoidal shape (see FIG. 2) orthogonal to both the side surfaces 11 and 21 orthogonal to the above-mentioned planes, with the short upper side on the lower side, the long upper side on the upper side, and the oblique side on the side surface 11 and 21, the restriction body insertion portions 72 and 72 at both ends are inserted into the connecting grooves 12 and 22, and are bridged.

  The restricting body main body 71 is provided with a pair of positioning recesses 73 and 73 at a line-symmetrical position across a line connecting the midpoints of the upper and lower sides of the restricting body main body 71 on the side near the long lower side. . The positioning recess 73 in this example is a part that is punched and recessed from one side (the front side in FIG. 2) of the regulating body main body 71. Further, the regulation body main body 71 of the present example has a regulation body through hole 74 at a line symmetric position with a line connecting the middle points of the upper side and the lower side of the regulation body main body 71 on the side close to the short upper side. Is provided. The regulating body through hole 74 is provided with a female screw for screwing the male screw 81 through the connecting body through hole 64 described above in order to fix the position of the face material 8 described later.

  The restriction body insertion part 72 has a length shorter than the edge of the oblique side of the restriction body main body 71 (see FIG. 3) and protrudes from both ends of the restriction body main body 71 (see FIG. 2). Thus, the short upper side is directed to the connecting grooves 11 and 12, and the long lower side is directed to the end edge of the regulating body main body 71. The restriction body insertion portion 72 of this example has a short upper end portion notched due to the relationship with the insertion long holes 121 and 221 of the connecting grooves 12 and 22 (see FIG. 3). If 121 and 221 are sufficiently long, it is not necessary to provide the notches.

  Two connecting grooves 12 are provided on the side surfaces 11 and 11 of the rectangular pipe 1 which are orthogonal to each other in a symmetrical relationship. Further, two connecting grooves 22 are provided in a symmetrical relationship with respect to the square pipe 1 abutted against the side surface 21. These connecting grooves 12 and 22 are in a line-symmetrical positional relationship across the lines connecting the midpoints of the upper and lower sides of the connecting body main body 61 spanning the side surfaces 11 and 21 perpendicular to the plane, and have exactly the same shape. is there. As a representative, the connection groove 12 provided on the side surface 11 orthogonal to the plane of the square pipe 1 will be described as a representative (in FIG. 3, reference numerals related to the connection groove 22 are added in parentheses).

  The connection groove 12 is an opening in which the insertion long hole 121 and the engagement long hole 122 having different lengths are connected side by side (see FIG. 3 and FIG. 4 described later). The insertion long hole 121 is a side surface that is perpendicular to the plane with a length that allows insertion of the connected body insertion portion 61 and the restriction body insertion portion 71 described above, and a width of the plate body of the connection body 6 and the restriction body 7. A side edge (for example, a left edge) is aligned with the width direction intermediate line 11 and extends in the extending direction of the side surface 11. The hooking long hole 122 is the length in which the constricted portion 65 of the coupling body 6 is fitted and the width of the thickness of the plate of the coupling body 6, and is the middle in the width direction of the side surface 11 orthogonal to the plane as in the insertion long hole 121. A side edge (for example, a right edge) is aligned with the line and extends in the extending direction of the side surface 11. From this, the insertion long hole 121 and the hooking long hole 122 communicate side by side across the intermediate line in the width direction of the side surface 11 orthogonal to the plane.

  An assembly procedure for abutting the end face of the square pipe 1 to the square pipe 2 extending in the left-right direction and assembling it in a T shape will be described. In the square pipe 1 of this example, as shown in FIGS. 4 and 5, the connecting projecting pieces 13 and 13 protrude downward from the center of the edge of the side surface 11 orthogonal to the plane. In addition, the square pipe 2 that abuts the square pipe 1 has connection holes 23 and 23 extending in a direction orthogonal to the extension of the side surface 22 corresponding to the connection protrusions 13 and 13, and the width of the side surface 22. Open in the middle direction. Thereby, the square pipe 1 and the square pipe 2 are temporarily assembled by first inserting the connection protrusions 13 and 13 into the connection holes 23 and 23. At this time, the connecting groove 12 and the connecting groove 22 have the insertion long holes 121, 221 and the engaging long holes 122, 222 aligned on the same straight line.

  When the temporary assembly of the square pipes 1 and 2 is finished, as shown in FIGS. 6 to 8, the insertion long hole 121 of the connecting groove 12 provided in the abutted square pipe 1 and the square pipe 1 abut. The connecting body insertion portions 62 and 62 at both ends are inserted into the insertion long holes 221 of the connecting groove 22 provided in the square pipe 2 so that the connecting body 6 is bridged between the side surfaces 11 and 21. At this stage, the connecting body insertion portions 62 and 62 are merely inserted into the insertion slots 121 and 221 of the connecting grooves 12 and 22, respectively, and are not engaged at all. Therefore, the connecting body 6 can be easily removed.

  As shown in FIGS. 9 to 11, the connecting body 6 is shifted from the insertion long holes 121, 221 side to the engagement elongated holes 122, 222, and the constricted portions 65, 65 are fitted to the engagement elongated holes 122, 222, thereby The connecting body insertion portion 62 longer than the constricted portion 65 is engaged from the inside of the side surfaces 11 and 21 perpendicular to the plane, and cannot be removed. Thereby, the square pipes 1 and 2 are connected. Then, by inserting the restriction pair insertion portions 72 and 72 of the restriction body 7 into the empty insertion long holes 121 and 221, the connecting body 6 shifted to the engagement long holes 122 and 222 side does not return to the insertion long holes 121 and 221 side.

  The connection body 6 of this example is a plate body in which the connection body main body portion 61, the constricted portion 65, and the connection body insertion portion 62 are flush with each other. In addition, the restricting body 7 of this example is a flat plate with the connecting body main body 61, the constricted portion 65, and the connecting body inserting portion 62 as well as the connecting body 6. For this reason, when the connecting body 6 is shifted to the engaging long holes 122 and 222 and the restricting body insertion portions 72 and 72 are inserted into the inserting long holes 121 and 221, the connecting body main body 61 and the restricting body main body 71 are also connected. The insertion part 62 and the restricting body insertion part 72 make their respective opposing surfaces contact each other and prevent the connection body 6 from returning to the insertion long holes 121 and 221 side while suppressing backlash of the connection body 6.

  The connecting body 6 of this example is provided with a positioning convex portion 63 in the connecting body main body 61, and the restricting body 7 of this example is provided with a positioning recess 73 in the restricting body main body 72. When the opposing surfaces of the body 6 and the regulating body 7 are brought into contact with each other, the positioning convex portion 63 and the positioning concave portion 73 are fitted (see the enlarged circle frame in FIG. 11), and the connecting body 6 and the regulating body 7 are arranged in the surface direction. Prevent misalignment. The connection body 6 in which the connection body insertion part 62 is engaged from the inside of the side surfaces 11 and 21 orthogonal to the surface is restricted from moving in the surface direction. For this reason, the restricting body 7 in which the positioning convex portion 63 is fitted in the positioning concave portion 73 cannot move in the surface direction, and the engagement of the connecting body insertion portion 62 with respect to the side surfaces 11 and 21 where the connecting body 6 is orthogonal to the surface is released. As a result, the connection of the square pipes 1 and 2 is stabilized.

  Thus, the connecting body 6 and the restricting body 7 spanned in the connecting grooves 12 and 22 restrain the positional relationship between the square pipes 1 and 2, and the restricting body 7 prevents the connecting body 6 from being displaced. Thus, the square pipes 1 and 2 are connected. In this example, the connecting body 6 and the restricting body 7 are assigned to a pair of left and right with the square pipe 1 interposed therebetween, and the pair of the left and right connecting bodies 6 and the restricting body 7 suppresses rattling. , 2 becomes more stable. Further, since the connecting protrusion 13 of the square pipe 1 inserted into the connecting hole 23 provided on the side surface 21 orthogonal to the plane of the square pipe 2 and the connecting body 6 are in an orthogonal relationship, the rattling is suppressed, The strong connection between the pipes 1 and 2 is stably maintained.

  Further, in this example, as shown in FIG. 12, the face material 8 is directed to the side where the positioning projection 63 of the coupling body 6 does not protrude = the side where the regulation body 7 does not contact, By screwing a male screw 81 from a screw hole (not shown) of the face member 8 communicating with the body through-hole 74 toward the restriction body through-hole 74, the frame body constituted by the orthogonal connection structure of the present invention is formed. The face material 8 can be attached. The male screw 81 has a function of integrating the connecting body 6 and the regulating body 7 so as not to be displaced, and contributes to maintaining a firm connection between the square pipes 1 and 2. For this reason, for example, even without the face material 8, a rivet is passed through the connecting body through hole 64 and the restricting body through hole 74 that communicate with each other or screws are screwed to contribute to maintaining the connection between the square pipes 1 and 2. You may let them.

  The decomposition of the orthogonal connection structure of this example is as follows. First, the positioning convex portion 63 and the positioning concave portion 73 for restraining the connecting body 6 and the regulating body 7 to be engaged with each other can be obtained by inserting a minus driver or the like between the connecting body main body portion 61 and the regulating body main body portion 72. The connecting body main body 61 or the regulation body main body 72 is bent and released. Thereby, the regulating body 7 in which the regulating body insertion part 72 is not engaged with the orthogonal side surfaces 11 and 21 can be removed from the connecting grooves 12 and 22. In this way, the restricting body 7 can be removed without being destroyed, so that it can be reused.

  Then, when the connecting body 6 is moved toward the insertion long holes 121 and 221 so that the constricted part 65 is removed from the engaging long holes 122 and 222, the engaging with the orthogonal side surfaces 11 and 21 of the connecting body insertion parts 62 and 62 is released. The connecting body 6 can also be removed from the connecting grooves 12 and 22. At this time, the connection of the square pipes 1 and 2 by the connecting body 6 is released. However, in this example, since the connection projecting piece 13 is inserted into the connection hole 23, the square pipes 1 and 2 are about the temporary assembly. The connection is maintained and there is no risk of unintentional release. Moreover, since the connection body 6 can be removed without destroying anything like the regulation body 7 described above, it can be reused.

  In the present invention, as shown in FIGS. 13 to 15, the square pipes 3 and 4 are assembled in a perpendicular relationship by fitting the dovetail female 34 and the dovetail male 44 formed respectively at the ends. The present invention is also applied to the case where a corner portion is formed by abutting the end face of another square pipe 5 on the upper surface (side surfaces 31 and 41 orthogonal to each other). As the coupling body 6 and the regulation body 7, those exemplified above can be used. For this reason, the connecting grooves 32, 42, 52 provided on the side surfaces 31, 41, 51 orthogonal to the planes of the square pipes 3, 4, 5 also have the same structure as that of the above example. This means that the same connecting body 6 and restricting body 7 can be used while mixing the above-described orthogonal connecting structure and another example orthogonal connecting structure, and the present invention can also be applied to more complex frame bodies. Indicates.

  In the square pipes 3 and 4 assembled in an orthogonal relationship, the upper surfaces against which the square pipes 5 are abutted are side surfaces 31 and 41 which are perpendicular to each other. The connecting grooves 32 and 42 are formed by arranging insertion long holes 321 and 421 extending in the extending direction of the square pipes 3 and 4 and engaging long holes 322 and 422 in a communicating state. The connecting grooves 32 and 42 in this example are insertion long holes 321 and 421 on the outer peripheral side (left side in FIG. 15) of the square pipes 3 and 4, and the engagement length on the inner peripheral side (right side in FIG. 15) of the square pipes 3 and 4. Holes 322 and 422 are assigned (see FIG. 15). In addition, the square pipes 3 and 4 of this example have connecting holes 33 and 34 extending perpendicularly to the connecting grooves 32 and 42 at intermediate positions between the connecting grooves 32 and 42 and the dovetail female 34 or the dovetail male 44. Provided.

  In the square pipe 5 that abuts the end face against the square pipes 3 and 4, the side faces 51 and 51 that intersect perpendicularly to the side faces 31 and 41 that are perpendicular to each other across the end edge are defined as side faces 51 and 51 that are perpendicular to each other. The side surfaces 51 and 51 are adjacent side surfaces that are orthogonal to each other in the horizontal plane, unlike the side surfaces 11 and 11 of the above-exemplified square pipe 1. The connecting grooves 52 and 52 are configured by arranging insertion long holes 521 extending in the extending direction of the square pipe 5 and engaging long holes 522 in a communicating state. The connection groove 52 of this example is the insertion long hole 521 on the outer peripheral side (left side in FIG. 15) of the square pipes 3 and 4 and the inner peripheral side (see FIG. 15 on the right side) is assigned a long slot 522 (see FIG. 15). In addition, in the square pipe 5 of this example, the connection protrusions 53 and 53 are protruded from the end edges of the side surfaces 51 and 51 orthogonal to the plane corresponding to the connection holes 33 and 34 of the square pipes 3 and 4.

  The assembling procedure for assembling the corner pipes 3 and 4 to be assembled in the corner portion by abutting the end faces of the square pipes 5 on the square pipes 3 and 4 assembled in an orthogonal relationship. The square pipe 3 and the square pipe 4 assembled in a dovetail shape are temporarily assembled with the square pipe 5 by inserting the connection protrusions 13 and 13 into the connection holes 23 and 23. In the case of another example, by inserting the connecting protrusions 13 and 13 into the connecting holes 23 and 23, the positional relationship between the square pipes 3 and 4 is restricted, that is, the fitting relationship between the ant pair female 34 and the ant pair male 44 is As a result of the restraint, it is possible to obtain a function that makes it difficult to separate the square pipes 3 and 4 assembled in an orthogonal relationship.

  At this time, the connecting groove 32 and the connecting groove 52 provided on the side surface 51 perpendicular to the plane having the end edge of the square pipe 5 sandwiched between the side surface 31 provided with the connecting groove 32 and the surface orthogonal to each other are The holes 321 and 521 and the hooking long holes 322 and 522 are aligned on the same straight line, and the side surfaces orthogonal to each other have a relationship in which the edge of the square pipe 5 is sandwiched between the connection groove 42 and the side surface 41 provided with the connection groove 42. The connecting groove 52 (not visible in FIG. 15) provided in 51 is formed by aligning the insertion long holes 421 and 521 and the engaging long holes 422 and 522 on the same straight line.

  When the temporary assembly of the square pipes 1 and 2 is completed, the insertion long holes 521 and 521 of the connecting grooves 52 and 52 provided in the abutted square pipe 5 and the square pipe 3 against which the square pipe 5 is abutted are provided as in the above example. , 4 are inserted into the insertion slots 321, 421 of the connection grooves 32, 42, respectively, and the connecting body insertion portions 62, 62 at both ends are respectively inserted, and the connecting body 6 is bridged between the side surfaces 31, 51 and the side surfaces 41, 51. . And the connection body 6 is shifted from the insertion long holes 321, 421, 521 side to the engagement long holes 322, 422, 522 side, and the connection body insertion part 62 is engaged from the inside of the side surfaces 31, 41, 51 orthogonal to the plane.

  The connecting body 6 and the restricting body 7 are brought into contact with each other so that the connecting body 6 does not return to the insertion long holes 121 and 221 side while suppressing backlash of the connecting body 6. Further, the connecting body 6 and the restricting body 7 are fitted with a positioning convex portion 63 provided in the connecting body main body portion 61 and a positioning concave portion 73 provided in the restricting body main body portion 62 (see an enlarged circle frame in FIG. 11). Deviation in the surface direction is prevented. In another example, the connecting body 6 and the regulating body 7 are allocated to the side surfaces 51 and 51 that are orthogonal to each other of the square pipe 5 and the sets of the connecting body 6 and the regulating body 7 that are orthogonal in the horizontal plane suppress rattling. To do. Moreover, since the connection protrusions 53 and 53 of the square pipe 5 inserted into the connection holes 33 and 43 provided on the side surfaces 31 and 41 orthogonal to the planes of the square pipes 3 and 4 and the connection body 6 are orthogonal to each other, Mutual rattling is suppressed.

  In another example, as shown in FIG. 14, the face material 8 is directed to the side where the positioning protrusion 63 of the coupling body 6 does not protrude = the side where the regulation body 7 is not brought into contact, and the coupling body through hole 64 and the regulation body penetration. By screwing a male screw 81 from a screw hole (not shown) of the face member 8 communicating with the hole 74 toward the restricting body through hole 74, the surface is attached to the frame constituted by the orthogonal coupling structure of the present invention. The material 8 can be attached. The male screw 81 has a function of integrating the connecting body 6 and the regulating body 7 so as not to be displaced, and contributes to maintaining a firm connection of the square pipes 3, 4, 5. For this reason, for example, even if the face material 8 is not provided, the connection of the square pipes 3, 4, 5 is maintained by passing rivets or screwing the connecting body through holes 64 and the regulation body through holes 74 communicating with each other. You may make a contribution.

  The decomposition of the orthogonal connection structure of another example is the same as the above-described example. First, the fitting of the positioning convex portion 63 and the positioning concave portion 73 that restrain the coupling body 6 and the regulating body 7 to each other is released, and the regulating body 7 is removed from the coupling grooves 32, 42, 52. Next, the constricted portion 65 is removed from the engaging elongated holes 322, 422, 522, and the connecting body 6 is also removed from the connecting grooves 32, 42, 52. At this time, the connection of the square pipes 1 and 2 by the connecting body 6 is released. However, in another example, the connecting protrusions 53 and 53 are inserted into the connecting holes 33 and 43, and the dovetail remains. The square pipes 3, 4, and 5 are maintained in connection with a temporary group, and there is no possibility that they are unexpectedly separated. In addition, since the connection body 6 and the regulation body 7 can be removed without destroying them as in the above example, they can be reused.

1 Square pipe assembled in an orthogonal relationship
11 Sides orthogonal to each other
12 Connecting groove
121 Slotted hole
122 hanging hole
13 Connecting protrusion 2 Square pipe assembled in an orthogonal relationship
21 Sides orthogonal to each other
22 Connecting groove
221 insertion slot
222 hanging hole
23 Connecting hole 3 Square pipe assembled in an orthogonal relationship 4 Square pipe assembled in an orthogonal relationship 5 Square pipe assembled in an orthogonal relationship
51 Sides orthogonal to each other 6 Linked body
61 Connected body
62 Connector insert
63 Positioning convex
64 Connector through hole
65 Wrap-up part 7 Regulatory body
71 Regulator body
72 Regulator insert
73 Positioning recess
74 Regulator through-hole 8 Face material
81 Male thread

Claims (5)

Each of the square pipes assembled in an orthogonal relationship is constructed by bridging a connecting body and a regulating body in a connecting groove provided on a side surface orthogonal to each other,
The connecting body includes a connecting body main body portion that extends perpendicularly to both side surfaces orthogonal to the plane, and a connecting body insertion portion that is longer than the constricted portion across the constricted portion and protrudes from both ends of the connecting body main body portion. Become
The restricting body is composed of a restricting body main body extending perpendicularly to both side surfaces orthogonal to the plane, and a restricting body inserting portion protruding from both ends of the restricting body main body with a length equal to or shorter than the connecting body inserting portion. ,
The connecting groove has a length and a width that allow the connecting body insertion portion and the regulation body insertion portion to be inserted, and is a length in which the insertion elongated hole extending in the extending direction of the side surface orthogonal to the surface and the constricted portion of the connecting body are fitted. An orthogonally connected structure of square pipes, each of which has an opening provided in lateral and side-by-side engagement with a long slot extending in the extending direction of the side surface orthogonal to the surface. The connecting body and restricting body contact part or all of the connecting body main body part with the restricting body main body part with the constricted part fitted into the engaging long hole and the restricting body insertion part inserted into the inserting long hole. The rectangular pipe orthogonal connection structure according to claim 1. 3. The connecting body and the restricting body are provided with a positioning protrusion and a positioning recess, which are separable and separable, on the respective opposing surfaces of the connecting body main body and the restricting body main body that are in contact with each other. An orthogonally connected structure of square pipes. The orthogonally connected structure of the square pipe according to any one of claims 1 to 3, wherein the connecting body and the regulating body are provided with a connecting body through hole and a regulating body through hole communicating with the connecting body main body portion and the regulating body main body portion. The square pipe to be assembled in an orthogonal relationship is the other surface of the side surface orthogonal to the surface of the square pipe to be abutted, with the connecting projecting piece protruding from one end edge of the side surface orthogonal to the surface of the square pipe to be abutted. The orthogonal connection structure of the square pipe in any one of Claims 1-4 inserted in the connection hole extended and provided in the orthogonal direction which the orthogonal side surface extended.

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