JP2012040219A - Joint structure object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint structure object for improving strength in rod-shaped members.SOLUTION: The insertion part 21a of an engaged member 21 is inserted to one of a plurality of engagement grooves 12 of the rod-shaped member 10, which are formed inward from an external periphery along a longitudinal direction. The rod-shaped member 10 is inserted to a fixing member 30, while allowing projection parts 21b projected from both sides of the insertion part 21a to approach inward. Thus, the engaged member 21 is joined, while fixing the rod-shaped member 10 to the fixing member 30. Since a screw hole is not bored in the end surface of the rod-shaped member 10, the engagement grooves 12 are deeply formed for the portion. When it is assumed that a uniform load (a surface load) is added to the engaged member 21 supported by the two rod-shaped members 10, orthogonal stress to act on the wall surface of the engagement groove 12 is reduced in inverse proportion to the depth of the engagement groove 12. That is, the strength of the rod-shaped member 10 is improved by allowing the screw hole not to be bored in the end surface of the rod-shaped member 10.

Description

  The present invention relates to a bonded structure, and more particularly to a bonded structure that can improve the strength of a rod-shaped member.

  2. Description of the Related Art Conventionally, there is known a technique for assembling a joined structure such as a shelf, a box, or a building by joining plate members or the like via bar-shaped members. For example, in Patent Document 1, a member to be engaged (panel material) is inserted into a plurality of engaging grooves formed over the longitudinal direction of the rod-shaped member, and the end of the member to be engaged is connected to the rod-shaped member. An assembly-type shelf (joint structure) is disclosed that is fastened and fixed with a fastener that is engaged with both ends thereof. In the technique disclosed in Patent Document 1, a screw hole is formed in the center of both end faces of the rod-shaped member, and a screw screw that is screwed into the screw hole is erected in the center of the fastener. After the O-ring is interposed between the fastener and the end of the rod-like member, the end of the member to be engaged is tightened by screwing the screw screw of the fastener into the screw hole, and the rod-like member Fixed to.

Utility Model Registration No. 3106908 (FIGS. 2, 16, etc.)

  However, in the technique disclosed in Patent Document 1, since the screw hole into which the screw screw of the fastener is screwed is formed in the center of both end faces of the rod-shaped member, the depth of the engagement groove is a rod-like shape. Both the outer diameter of the member and the inner diameter of the screw hole were constrained. That is, the engagement groove has to be made shallower as much as the screw hole is formed. Here, an engaged member (panel material) in which both ends are horizontally inserted and fixed in shallow engagement grooves provided in each of the two rod-shaped members, and a deep engagement provided in each of the two rod-shaped members. It is assumed that there is an engaged member (panel material) in which the both ends are horizontally inserted and fixed in the mating groove. The rod-shaped members have the same thickness. Then, it is assumed that the rod-shaped member is supported horizontally and an equally distributed load (surface load) of the same size is applied to the two engaged members. Since these engaged members are a kind of both-end fixed beam, maximum stress is generated on both fixed end surfaces of the engaged member. If attention is paid to the rod-shaped member, the vertical stress acting on the wall surface (surface in the depth direction) of the engagement groove is larger in the rod-shaped member having a shallow engagement groove than in the rod-shaped member having a deep engagement groove. That is, there is a problem in that the strength of the rod-shaped member is reduced because the depth of the engaging groove is restricted by the threaded hole formed in the end face.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a joined structure that can improve the strength of a rod-shaped member.

Means for Solving the Problems and Effects of the Invention

  In order to achieve this object, according to the joining structure according to claim 1, the engaged member is formed in the engaging groove of the rod-shaped member formed in plural from the outer periphery toward the inner side along the longitudinal direction of the main body portion. Is inserted. The outer peripheral surface of the rod-shaped member is inserted into the fixing portion of the fixing member while facing the protruding portion of the engaged member protruding along the longitudinal direction of the main body from both sides of the insertion portion. As a result, the engaged member can be joined while fixing the fixing member to the rod-shaped member without having to make screw holes on both end faces of the rod-shaped member. Since the screw holes are not drilled on both end faces of the rod-shaped member, the engagement grooves can be deepened by the amount of the screw holes if the rod-shaped member has the same thickness.

  Assuming that an equally distributed load (surface load) is applied to the engaged member supported by the two rod-like members, the rod-like member having a deep engagement groove is compared with the rod-like member having a shallow engagement groove. The vertical stress acting on the wall surface of the engaging groove can be reduced. That is, there is an effect that the strength of the rod-like member can be improved by not forming the screw hole in the end face.

  According to the joint structure of the second aspect, the engaged member includes the overhanging portion that protrudes along the axis of the rod-like member at a distance from the protruding portion, and the overhanging portion of the fixing member Since it is located on the outer peripheral side, a part or all of the fixing member can be embedded in the overhanging portion by adjusting the overhanging length of the overhanging portion. Thus, in addition to the effect of the first aspect, the joined structure can be made beautiful and the freedom of the joined structure can be improved.

  According to the joint structure of the third aspect, the rod-shaped member includes the convex portion that protrudes from the both ends of the main body portion in the longitudinal direction and whose thickness is set to be thinner than the thickness of the main body portion. Grooves are extended. Since the protruding portion is inserted into the engaging groove extending to the convex portion, when the outer peripheral surface of the rod-shaped member (the outer peripheral surface of the convex portion) is inserted into the fixing member, the engaged member is engaged with the fixing member. Combined and fixed to the rod-shaped member. Since the protruding portion is inserted into the engaging groove without protruding from the outer peripheral surface of the convex portion, the size of the inner periphery of the fixing portion of the fixing member can be reduced to the size of the outer periphery of the convex portion. In addition to the effect 1 or 2, the fixing member can be made compact.

  According to the bonded structure of the fourth aspect, the main body portion and the fixing member are set to have the same thickness, and the outer peripheral surface of the main body portion and the outer peripheral surface of the fixing member are formed to be flush with each other. Thereby, in addition to the effect of Claim 3, it can prevent that a fixing member protrudes in the radial direction of a main-body part, and has the effect that it can make beautiful and can make joining by a fixing member compact.

  According to the bonded structure according to claim 5, among the plurality of engaging grooves formed in the rod-shaped member, adjacent engaging grooves have a central angle set to 30 ° or 60 °, and the engaged member is Since the planar view is formed in the same size of the rectangular shape, it is possible to make a joined structure composed of the side surface of the triangular prism or the side surface of the hexagonal column by combining the engaged member and the rod-shaped member. When a bending moment is applied to the joint structure, the transmission of the bending moment is blocked by the rod-shaped member, a tensile force or a compressive force acts on the engaged member, and a load or reaction force thereby acts on the rod-shaped member. As a result, in addition to the effect of any one of claims 1 to 4, there is an effect that the strength of the bonded structure can be improved.

  According to the joined structure of claim 6, since the fixing member is formed in a bottomless cylindrical shape and the fixing portions are formed on both sides of the fixing member, the rod-like members are inserted on both sides of the fixing member. By doing so, the rod-shaped members can be connected. Thereby, in addition to the effect in any one of Claims 1-5, there exists an effect which can improve the freedom of a joining structure by connecting a rod-shaped member using a fixing member.

  According to the bonded structure of claim 7, since the outer peripheral surface of the main body or the convex portion and the inner peripheral surface of the fixed portion are configured to be screwable, in addition to the effect of any one of claims 1 to 6, The fixing member can be attached to and detached from the rod-shaped member, and there is an effect that assembly and disassembly of the joined structure can be easily repeated.

  According to the bonded structure of the eighth aspect, since the engaged member is formed in a plate shape and includes a hole portion formed so as to penetrate in the thickness direction, the space partitioned by the engaged member is formed. It can be made to communicate in a hole. As a result, in addition to the effect of any one of claims 1 to 7, there is an effect that the freedom of the joint structure can be improved.

(A) is a front view of the junction structure in a 1st embodiment, and (b) is the top view. (A) is a partial assembly drawing of the joining structure before attaching the engaged member to the rod-like member, and (b) is a partial assembly view of the joining structure before attaching the fixing member to the rod-like member. (A) is sectional drawing before the assembly of the joining structure in the IIIb-IIIb line of FIG. 1, (b) is sectional drawing of the joining structure in the IIIb-IIIb line of FIG. It is a perspective view of the junction structure in a 2nd embodiment. (A) is a front view of the rod-shaped member in 3rd Embodiment, (b) is a side view of a rod-shaped member. (A) is the partial assembly figure of the joining structure before mounting the to-be-engaged member in 4th Embodiment to a rod-shaped member, (b) is the bonding structure before mounting a fixing member to a rod-shaped member. It is a partial assembly drawing. (A) is the partial assembly figure of the joining structure before mounting the to-be-engaged member to a rod-shaped member in 5th Embodiment, (b) is the joining structure to which an to-be-engaged member is mounted to a rod-shaped member. It is a partial assembly drawing. (A) is a perspective view of the joining structure in 6th Embodiment, (b) is a partial assembly figure of the joining structure before mounting an engaged member to a rod-shaped member.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings. First, with reference to FIG. 1, the joining structure 1 in 1st Embodiment of this invention is demonstrated. Fig.1 (a) is a front view of the joining structure 1 in 1st Embodiment, FIG.1 (b) is the top view.

  As shown in FIGS. 1 (a) and 1 (b), the joint structure 1 is composed of a plurality of combinations of side faces of hexagonal columns, and the engaged member 20 is composed of a rod-shaped member 10 and a fixing member 30. It is assembled by joining. In this Embodiment, the to-be-engaged member 20 which comprises the joining structure 1 has the 1st member 21 formed in the plate | board shape of the same magnitude | size of planar shape in a planar view. The first member 21 is a member that constitutes the side surface of the hexagonal column of the bonded structure 1. In addition, the engaged member 20 includes a second member 22 that is disposed diagonally to the side surface of the hexagonal column formed by the first member 21. The fixing member 30 is fixed to both ends of the rod-shaped member 10, and the engaged member 20 is joined to the rod-shaped member 10.

  Next, with reference to FIG. 2, the joining structure of the rod-shaped member 10 and the engaged member 20 will be described. FIG. 2A is a partial assembly view of the joined structure 1 before the engaged member 20 is attached to the rod-like member 10, and FIG. 2B is a joint before the fixing member 30 is attached to the rod-like member 10. 2 is a partial assembly view of the structure 1. FIG. Since the rod-shaped member 10 and the engaged member 20 have the same structure at both ends, one end of the rod-shaped member 10 and the engaged member 20 is partially shown in FIG. 2, and the other end is omitted.

  The rod-shaped member 10 includes a rod-shaped main body portion 11 having a circular cross section, and a plurality of engagement grooves 12 formed in the longitudinal direction of the main body portion 11 from the outer periphery toward the inside. Furthermore, the rod-shaped member 10 includes a convex section 13 having a circular cross section that protrudes in the longitudinal direction from both ends of the main body 11 and whose thickness is set to be thinner than the thickness of the main body 11. The convex portion 13 is formed on the same axis O as that of the main body portion 11, and a male screw is threaded on the outer peripheral surface 13a. The engaging groove 12 extends from the main body 11 to the convex portion 13 with a uniform width, and the central angle of the adjacent engaging grooves 12 is set to 60 °. As a result, in the present embodiment, six engaging grooves 12 are formed in the main body portion 11 and the convex portion 13.

  The first member 21 as the engaged member 20 includes an insertion portion 21a inserted into the engagement groove 12 formed in the rod-shaped member 10, and the longitudinal direction of the main body portion 11 of the rod-shaped member 10 from both sides of the insertion portion 21a. And a protruding portion 21b protruding along the line. In the present embodiment, the length of the insertion portion 21 a is the same as the length of the main body portion 11, and the length of the protruding portion 21 b is set to be the same as the length of the convex portion 13.

  Further, the width of the insertion portion 21a is the same as the width of the protruding portion 21b, and the height of the protruding portion 21b is set slightly smaller than the depth of the engaging groove 12 in the convex portion 13. Further, the first member 21 includes an overhanging portion 21 c that protrudes along the axis O of the rod-shaped member 10 with a gap from the protruding portion 21 b. The distance between the protruding portion 21b and the overhanging portion 21c is substantially the same as the height of the step between the main body portion 11 and the convex portion 13 of the rod-shaped member 10. In addition, the length of the engaged member 20 including the overhanging portion 21c (the length along the axis O of the rod-shaped member 10) is the same as the length including the insertion portion 21a and the protruding portion 21b.

  In addition, the 2nd member 22 (member 20 to be engaged) is provided with the insertion part 22a, the protrusion part 22b, and the overhang | projection part 22c similarly to the 1st member 21, and is formed in plate shape. Since the relationship between the insertion portion 22a, the protruding portion 22b, and the overhanging portion 22c is the same as the relationship between the insertion portion 21a, the protruding portion 21b, and the overhanging portion 21c of the first member 21, the following description is omitted.

  As shown in FIG. 2 (b), after inserting the insertion portions 21 a and 22 a and the protruding portions 21 b and 22 b of the engaged member 20 into the engaging grooves 12 formed in the rod-shaped member 10, the fixing member 30 is moved to the rod-shaped member. The engaged member 20 can be joined to the rod-shaped member 10 by being fixed to the end portion 10 (the outer peripheral end portion of the convex portion 13).

  Next, the relationship between the rod-shaped member 10 and the engaged member 20 and the fixing member 30 will be described with reference to FIG. FIG. 3A is a cross-sectional view of the joined structure 1 taken along the line IIIb-IIIb in FIG. 1, and FIG. 3B is a cross-sectional view of the joined structure 1 taken along the line IIIb-IIIb in FIG. .

  As shown in FIG. 3A, the fixing member 30 is configured to have a bag shape with one end 31 closed and a fixing portion 32 into which the convex portion 13 is inserted at the other end. . The fixing portion 32 is configured such that a female screw that is screwed with the male screw threaded on the outer peripheral surface 13 a of the convex portion 13 is threaded on the inner peripheral surface 32 a and can be screwed with the convex portion 13. The thickness of the fixing portion 32 (the left-right direction in FIG. 3) is the height of the step between the main body portion 11 and the convex portion 13 of the rod-shaped member 10 (half the difference in outer diameter between the main body portion 11 and the convex portion 13. The outer diameter of the fixing member 30 is the same as the outer diameter of the main body 11.

  As described above, the length of the protruding portion 21b (the vertical direction in FIG. 3) is set to be the same as the length of the convex portion 13 (the vertical direction in FIG. 3) (see FIG. 3A), and the height of the protruding portion 21b. Since the height (left and right direction in FIG. 3) is set slightly smaller than the depth of the engaging groove 12 (left and right direction in FIG. 3) in the convex portion 13, the protruding portion 21b protrudes from the outer peripheral surface 13a of the convex portion 13. Without being inserted into the engaging groove 12. Further, the distance between the protruding portion 21b and the overhanging portion 21c (the left-right direction in FIG. 3) is substantially the same as the height of the step between the main body portion 11 and the convex portion 13 (the left-right direction in FIG. 3). The thickness of the fixing portion 32 (the left-right direction in FIG. 3) is substantially the same as the height of the step between the main body portion 11 and the convex portion 13 (the left-right direction in FIG. 3). As a result, as shown in FIG. 3B, after inserting the insertion portion 21a and the projection 21b of the engaged member 20 into the engagement groove 12, the fixing portion 32 and the convex portion 13 of the fixing member 30 are screwed. Yes. Thereby, the engaged member 20 can be fixed to the rod-shaped member 10 without rattling.

  Further, since the outer diameter of the fixing member 30 is the same as the outer diameter of the main body 11, the main body 11 and the fixing member 30 can be joined without any step, and the outer peripheral surface of the main body 11 and the fixing member 30 can be joined. It can be made beautiful by making the outer peripheral surface of the same surface, and the joint can be made compact. Furthermore, since the engaged member 20 includes the overhanging portion 21c, a part of the fixing member 30 (the fixing portion 32) is embedded in the overhanging portion 21c. As a result, it is possible to give an impression that the rod-shaped member 10, the engaged member 20, and the fixing member 30 are integrated, and the appearance is excellent.

  As described above, according to the joint structure 1 in the first embodiment, the fixing member 30 can be formed without forming the screw holes for fixing the fixing member on both end surfaces of the rod-like member 10 as in the prior art. The engaged member 20 can be joined to the rod-shaped member 10. Since the screw holes are not drilled on both end faces of the rod-shaped member 10, if the rod-shaped member 10 has the same thickness, the engagement groove 12 can be deepened by the amount of the screw holes. Assuming that an equally distributed load (surface load) is applied to the engaged member 20 supported horizontally by the two rod-shaped members 10, the deep rod-shaped member 10 of the engaging groove 12 is a shallow rod-shaped member of the engaging groove 12. Compared with 10, the vertical stress acting on the wall surface of the engagement groove 12 can be reduced. That is, the strength of the rod-shaped member 10 can be improved by not forming a screw hole in the end surface of the rod-shaped member 10.

  Of the plurality of engaging grooves 12 formed in the rod-shaped member 10, the adjacent engaging grooves 12 have a central angle set to 60 °, and the engaged member 20 has the same size in a rectangular shape in plan view. The 1st member 21 formed in this is provided. As a result, the joined structure 1 can be made by combining the side surfaces of the hexagonal columns by combining the first member 21 and the rod-shaped member 10. Further, the second member 22 disposed on the diagonal of the side surface of the hexagonal column formed by the first member 21 can be reinforced. When a bending moment is applied to the joint structure 1, the transmission of the bending moment is interrupted by the rod-shaped member 10, and a tensile force or a compressive force acts on the engaged member 20, and the load and reaction force caused thereby are the rod-shaped member 10. Act on. As a result, since the bending moment acting on the engaged member 20 can be reduced, the strength of the joined structure 1 can be improved.

  The rod-shaped member 10 includes a convex portion 13 that protrudes in the longitudinal direction from both ends of the main body portion 11 and whose thickness is set to be smaller than the thickness of the main body portion 11, and the engaging groove 12 extends in the convex portion 13. Has been. Since the protruding portion 21b is inserted into the engaging groove 12 extended to the convex portion 13, when the outer peripheral surface of the rod-shaped member 10 (the outer peripheral surface 13a of the convex portion 13) is inserted into the fixing member 30, the engaged member is engaged. The combined member 20 is engaged with the fixing member 30 and fixed to the rod-shaped member 10. Since the protruding portion 21 b is inserted into the engaging groove 12 without protruding from the outer peripheral surface 13 a of the convex portion 13, the size of the inner periphery of the fixing portion 32 of the fixing member 30 is reduced to the size of the outer periphery of the convex portion 13. can do. As a result, the fixing member 30 can be made compact.

  Moreover, since the convex part 13 and the fixing | fixed part 32 are comprised so that screwing is possible, the fixing member 30 can be attached or detached to the rod-shaped member 10, and an assembly and disassembly can be repeated. Thereby, by arranging the engaged member 20 horizontally, the joint structure 1 can be suitably used as an assembly-type shelf for display frequently used in exhibitions and the like. In particular, since the fixing member 30 is configured in a bag shape (see FIGS. 2B and 3), the end portion of the rod-shaped member 10 can be covered, and the appearance is excellent.

  Moreover, the joining structure 1 can be made into an arbitrary shape by inserting and engaging the engaged member 20 into an arbitrary portion of the engaging groove 12 formed in a plurality of rod-like members 10, and is excellent in flexibility. Thereby, it is suitable as a toy which can be repeatedly assembled and disassembled.

  In addition, by increasing the size of the rod-shaped member 10, the engaged member 20, and the fixing member 30, it is possible to configure the floor with the engaged member 20 to form a building. Furthermore, it is possible to make furniture such as an umbrella stand by arranging the engaged member 20 in the vertical direction. The rod-shaped member 10, the engaged member 20, and the fixing member 30 are manufactured by appropriately selecting various materials such as metal, synthetic resin, glass, wood, and reinforced concrete according to the use and size of the bonded structure 1. be able to.

  Next, a second embodiment will be described with reference to FIG. 2nd Embodiment demonstrates the case where the to-be-engaged member 23 is provided with the hole 23a penetrated and formed in the thickness direction. FIG. 4 is a perspective view of the joint structure in the second embodiment. In addition, the same part as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits the following description.

  As shown in FIG. 4, the engaged member 23 in the joined structure according to the second embodiment is formed in a plate shape, both ends are fixed by the rod-shaped member 10, and the holes are formed to penetrate in the thickness direction. A portion 23a is provided. Since the engaged member 23 whose both ends are fixed by the rod-like member 10 is considered as a both-end fixed beam, when an equally distributed load (surface load) is applied to the engaged member 23, Maximum stress occurs. Therefore, the engaged member 23 is strong against bending, and even if the hole 23a is formed through the engaged member 23, a decrease in strength can be suppressed. In this Embodiment, the elevator E is penetrated by the to-be-engaged member 23 used as a building. As described above, the space partitioned by the engaged member 23 can be communicated by the hole 23a, and the freedom of the joint structure can be improved.

  Next, a third embodiment will be described with reference to FIG. In the first embodiment and the second embodiment, the case where the engagement groove 12 having a central angle of 60 ° is formed in the rod-shaped member 10 has been described. In contrast, in the third embodiment, a case where the engagement groove 112 having a central angle of 30 ° is formed in the rod-shaped member 110 will be described. In addition, the same part as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits the following description. FIG. 5A is a front view of the rod-shaped member 110 according to the third embodiment, and FIG. 5B is a side view of the rod-shaped member 110.

  As shown in FIG. 5A, among the plurality of engaging grooves 112 formed in the rod-shaped member 110, the adjacent engaging grooves 112 are set to have a central angle of 30 °. As a result, the engaged member 120 can be joined so that the angle formed by the two engaged members 120 is 90 °, and by combining the rod-shaped member 110 and the engaged member 120, the side surface of the rectangular column The joint structure which consists of can be made. Further, as in the first embodiment, the engaged members can be joined so that the angle formed by the two engaged members is 60 °. As described above, by setting the central angle of the adjacent engagement grooves 112 to 30 °, the flexibility of joining the engaged members 120 can be further improved.

  Next, a fourth embodiment will be described with reference to FIG. In the first to third embodiments, the case where the rod-shaped members 10 and 110 include the main body portion 11 and the convex portion 13 has been described. On the other hand, 4th Embodiment demonstrates the case where the rod-shaped member 210 is not provided with the convex part. FIG. 6A is a partial assembly view of the joined structure before the engaged member 220 is attached to the rod-shaped member 210 in the fourth embodiment, and FIG. It is a partial assembly drawing of the joining structure before mounting. Since the rod-shaped member 210 and the engaged member 220 have the same structure at both ends, one end of the rod-shaped member 210 and the engaged member 220 is partially illustrated in FIG.

  As shown in FIG. 6A, the rod-shaped member 210 has a rod-shaped main body portion 211 formed in a circular cross section, and a plurality of rod-shaped members 210 formed from the outer periphery to the inner side along the longitudinal direction of the main body portion 211. And a mating groove 212. The engaging groove 212 is formed in the main body 211 with a uniform width, and the central angle of the adjacent engaging grooves 212 is set to 90 °. As a result, in the present embodiment, four engagement grooves 212 are formed in the main body 211.

  The engaged member 220 protrudes along the longitudinal direction of the main body portion 211 of the rod-shaped member 210 from both sides of the insertion portion 220a inserted into the engagement groove 212 formed in the rod-shaped member 210 and the insertion portion 220a. The projection 220b is formed in a plate shape. In the present embodiment, the length obtained by adding the protruding portion 220 b to the insertion portion 220 a is set to be the same as the length of the main body portion 211. Further, the width of the insertion portion 220a and the width of the protrusion 220b are the same, and the height of the protrusion 220b is the same as the depth of the engagement groove 212.

  The fixing member 230 shown in FIG. 6B is a member formed in an annular shape and includes a fixing portion 231 into which the main body portion 211 is inserted. The inner diameter of the fixing portion 231 is formed substantially the same as the thickness (outer diameter) of the main body portion 211, and the length of the fixing portion 231 along the axis O direction is substantially the same as the length of the protruding portion 220b along the axis O direction. Are formed identically. Thereby, after inserting the insertion part 220a and the protrusion part 220b of the engaged member 220 into the engaging groove 212 formed in the bar-shaped member 210, the fixing member 230 is moved to the end of the bar-shaped member 210 (the outer peripheral end of the main body 211). The member to be engaged 220 can be joined to the rod-shaped member 210 without rattling. Various means such as welding can be used to fix the fixing member 230 to the outer peripheral end of the main body 211.

  As described above, according to the joint structure in the fourth embodiment, the outer periphery of the fixing member 230 protrudes from the outer periphery of the main body portion 211 of the rod-shaped member 210, but the convex portion to the rod-shaped member 211 (shown in FIG. 2). Since the formation of the symbol 13) can be omitted, the manufacture of the rod-shaped member 211 can be simplified.

  Next, a fifth embodiment will be described with reference to FIG. In the first embodiment, the case where the one end 31 (see FIG. 3A) of the fixing member 30 is formed in a bag shape has been described. On the other hand, in the fifth embodiment, a case will be described in which the fixing member 330 is formed in a bottomless cylindrical shape, and the fixing portions 331 and 332 are formed on both sides of the fixing member 330.

  FIG. 7A is a partial assembly view of the joined structure before the engaged member 320 is attached to the rod-shaped member 10 in the fifth embodiment, and FIG. 7B is a diagram of the engaged member 320 being the rod-shaped member. FIG. 10 is a partial assembly view of a joint structure to be attached to 10. Since the rod-shaped member 10 and the engaged member 320 have the same structure at both ends, one end of the rod-shaped member 10 and the engaged member 320 is partially illustrated in FIG. Moreover, the same part as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits the following description.

  As shown in FIG. 7A, the engaged member 320 includes an insertion portion 320a inserted into the engagement groove 12 formed in the rod-shaped member 10, and the main body portion 11 of the rod-shaped member 10 from both sides of the insertion portion 320a. And a projecting portion 320b projecting along the longitudinal direction. In the present embodiment, the length of the insertion portion 320 a is the same as the length of the main body portion 11, and the length of the protruding portion 320 b is set to be the same as the length of the convex portion 13. Further, the width of the insertion portion 320a is the same as the width of the protrusion 320b, and the height of the protrusion 320b is set slightly smaller than the depth of the engagement groove 12 in the convex portion 13.

  Furthermore, the engaged member 320 includes an overhanging portion 320c that protrudes along the axis O of the rod-like member 10 with a gap from the protruding portion 320b. The distance between the protruding portion 320b and the overhang portion 320c is substantially the same as the height of the step between the main body portion 11 and the convex portion 13 of the rod-shaped member 10. The length of the overhang portion 320c (the length along the axis O of the rod-shaped member 10) is set to half the length of the fixing member 330 (the length along the axis O).

  The fixing member 330 is formed in a bottomless cylindrical shape with both ends open, and fixing portions 331 and 332 are formed on both sides of the inner peripheral surface. The fixing portions 331 and 332 are portions where the outer peripheral surface 13a of the convex portion 13 of the rod-shaped member 10 is inserted. In the present embodiment, the fixing portions 331 and 332 are threaded with a female screw threadedly engaged with a male screw threaded on the outer peripheral surface 13 a of the convex portion 13, and are configured to be threadable with the convex portion 13. . One of the fixing portions 331 and 332 is a reverse screw.

  The thickness of the fixing portions 331 and 332 (the thickness of the fixing member 330) is the height of the step between the main body portion 11 and the convex portion 13 of the rod-shaped member 10 (difference in radius between the rod-shaped member 10 and the convex portion 13). The outer diameter of the fixing member 330 is the same as the outer diameter of the main body 11.

  As described above, the fixing portions 331 and 332 are configured to be screwable with the convex portion 13 and one of the fixing portions 331 and 332 is a reverse screw, as shown in FIG. By fixing the fixing member 330 between the rod-shaped members 10 and 10 and rotating the fixing member 330 in one direction around the axis O, the fixing portions 331 and 332 and the convex portions 13 and 13 can be screwed together. Thereby, the rod-shaped members 10 and 10 can be connected by the fixing member 330.

  The length of the protrusion 320b (axis O direction) is set to be the same as the length of the protrusion 13 (axis O direction), and the height of the protrusion 320b (perpendicular to the axis O) is the protrusion 13. Is set to be slightly smaller than the depth of the engaging groove 12 (in the direction orthogonal to the axis O), the protruding portion 320b is inserted into the engaging groove 12 without protruding from the outer peripheral surface 13a of the protruding portion 13. Further, the distance between the projecting portion 320b and the overhanging portion 320c (in the direction orthogonal to the axis O) is substantially the same as the height of the step (in the direction orthogonal to the axis O) between the main body 11 and the projection 13 of the rod-shaped member 10. In addition, the thickness of the fixing portions 331 and 332 (in the direction orthogonal to the axis O) is formed to be substantially the same as the height of the step (in the direction orthogonal to the axis O) between the main body portion 11 and the convex portion 13 of the rod-shaped member 10. Yes. As a result, after connecting the fixing member 330 and the rod-shaped member 10, the protruding portion 320 b and the insertion portion 320 a of the engaged member 320 are inserted from the end of the engagement groove 12 (the end of the rod-shaped member 10), and FIG. By sliding the engaged member 320 as shown in b), the engaged member 320 can be fixed to the rod-shaped member 10 without rattling.

  In addition, since the length of the overhanging portion 320c (the length along the axis O of the rod-shaped member 10) is set to half the length of the fixing member 330 (the length along the axis O), the two rod-shaped portions If the positions of the engaging grooves 12 of the member 10 are aligned along the longitudinal direction, the two engaged members 320 are slid in the direction of the fixing member 330 so that the protruding portions 320c are abutted with each other. it can. Thus, even when the rod-shaped member 10 is coupled in the axis O direction, the gap between the engaged members 320 arranged in parallel in the axis O direction can be eliminated by the projecting portion 320c.

  Further, since the outer diameter of the fixing member 330 is the same as the outer diameter of the main body portion 11, the main body portion 11 and the fixing member 330 can be joined without any step, and the outer peripheral surface of the main body portion 11 and the fixing member 330 can be joined. It can be made beautiful by making the outer peripheral surface of the same surface.

  Next, a sixth embodiment will be described with reference to FIG. In 1st Embodiment, when using the junction structure 1 as a shelf, the case where the rod-shaped member 10 was arrange | positioned in the horizontal direction was demonstrated. On the other hand, in 6th Embodiment, the joining structure 401 as a clothes hook which arrange | positions the rod-shaped members 10 and 410 to a perpendicular direction is demonstrated. The same parts as those in the first embodiment and the fifth embodiment are denoted by the same reference numerals, and the following description is omitted. Fig.8 (a) is a perspective view of the joining structure 401 in 6th Embodiment. In FIG. 8A, a part of the rod-shaped member 10 in the longitudinal direction is omitted.

  As shown in FIG. 8A, a joined structure 401 as a clothes rack is connected to a longitudinal direction by a fixing member 330 and is disposed in a vertical direction. A plurality of engaged members 420 serving as legs extending in a direction orthogonal to the axis O of the members 10 and 410 and radially disposed from the rod member 410 to the axis O of the rod members 10 and 410. And a plurality of engaged members 421 as arms that project radially and are arranged radially.

  The engaged member 421 has a latching portion 422 that latches the clothing C fixed to the tip. The engaged members 420 and 421 are joined to the rod-like member 410 by the fixing members 30 and 330. Since the engaged members 420 project radially in the direction orthogonal to the axis O of the rod-like members 10 and 410, the joined structure 401 is erected by being supported by the engaged members 420.

  Next, with reference to FIG. 8B, a joining structure between the engaged member 420 and the rod-like member 410 by the fixing members 30 and 330 will be described. FIG. 8B is a partial assembly view of the joined structure 401 before the engaged member 420 is attached to the rod-like member 410. In FIG. 8B, a part of the illustration of the joining member 330 in the longitudinal direction is omitted. Note that the joining structure between the engaged member 421 and the rod-like member 410 by the fixing members 30 and 330 is the same as the joining structure between the engaged member 420 and the rod-like member 410, and thus the description thereof is omitted.

  The rod-shaped member 410 is a member in which the main body portion 411 is formed to be shorter than the main body portion 11 of the rod-shaped member 10. By appropriately setting the length of the rod-shaped member 410, the length of the engaged member 420 (the length in the axis O direction) can be appropriately set. Thereby, the freedom of the joining structure 401 can be improved.

  The engaged member 420 protrudes along the longitudinal direction of the main body portion 411 of the rod-shaped member 410 from both sides of the insertion portion 420a inserted into the engaging groove 12 formed in the rod-shaped member 410 and the insertion portion 420a. It has a protrusion 420b and is formed in a plate shape. In the present embodiment, the length of the insertion portion 420 a is the same as the length of the main body portion 411, and the length of the protruding portion 420 b is set to be the same as the length of the convex portion 13. Further, the width of the insertion portion 420a and the width of the protrusion 420b are the same, and the height of the protrusion 420b is set slightly smaller than the depth of the engagement groove 12 in the protrusion 13.

  Further, the engaged member 420 includes projecting portions 420c and 420d that project along the axis O of the rod-shaped member 10 with a gap from the projecting portion 420b. The distance between the protruding portion 420b and the overhang portions 420c and 420d is substantially the same as the height of the step between the main body portion 411 and the convex portion 13 of the rod-like member 410. Further, the length of the overhang portion 420c (the length along the axis O of the rod-shaped member 410) is set to be the same as or slightly longer than the length of the fixing member 30 (the length along the axis O).

  The rod-shaped member 410 and the engaged member 420 configured as described above insert the insertion portion 420a and the protruding portion 420b of the engaged member 420 into the groove portion 12 of the rod-shaped member 410, and fix the fixing members 30 and 330 to a rod shape. The members 410 are joined by screwing to both ends. Since the length of the overhanging portion 420c is set to be the same as or slightly longer than that of the fixing member 30, the fixing member 30 is prevented from protruding from the overhanging portion 420c. The engaged member 420 functions as a leg portion of the joint structure 401, and the fixing member 30 is located at the center of the leg portion. Therefore, the protrusion of the fixing member 30 from the overhang portion 420c can be prevented. 1 can be erected stably.

  The present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed. For example, the numerical values given in the above embodiment are merely examples, and other numerical values can naturally be adopted.

  In the first embodiment, the case where the fixing member 30 is configured to be screwable to the convex portion 13 and the fixing member 30 is screwed to the rod-shaped member 10 has been described. However, the present invention is not necessarily limited thereto. The fixing member 30 can be fixed to the rod-shaped member 10 by various means such as welding and fitting.

  Similarly, in the fourth embodiment (see FIG. 6), the case where the fixing member 230 is fixed to the main body 211 by welding or the like has been described. However, the present invention is not necessarily limited to this, and the outer peripheral surface of the main body 211 It is also possible to configure so that the main body portion 211 and the fixing member 230 can be screwed together by screwing a male screw into the fixing portion 231 and a female screw. In this case, the fixing member 230 can be attached to and detached from the main body 211, and assembly and disassembly can be repeated.

  In the fourth embodiment (see FIG. 6), the engaged member 220 in which the overhang portion is not formed has been described. However, the present invention is not necessarily limited to this, and the tension member positioned on the outer peripheral side of the fixing member 230 is described. It is also possible to provide the protruding portion on the engaged member 220. By providing the overhanging portion, a part or all of the fixing member 230 can be embedded in the overhanging portion. Thereby, while being able to make a joining structure beautiful, the freedom degree of a joining structure can be improved. Further, when the rod-like member 210 is erected with the engaged member 220 as a leg portion as in the sixth embodiment, the stability can be improved by providing an overhang portion.

  In the fourth embodiment (see FIG. 6), the case where the fixing member 230 is fixed to the end of the rod-shaped member 210 has been described. However, the present invention is not necessarily limited to this, and the length in the axis O direction is increased. By using the formed fixing member 230, it is also possible to connect the two rod-shaped members 210 in the direction of the axis O.

  In the first embodiment, the case where the fixing member 30 is closed and formed into a bag shape has been described. However, the fixing member 30 is not necessarily limited to this. Grooves and holes can be formed. Further, the fixing member 30 can be formed with a knob such as a wing nut or a slip stopper such as a knurl. Thereby, attachment / detachment of the fixing member 30 can be made easy.

  In each of the above-described embodiments, the case where the rod-shaped members 10, 110, and 210 are formed in a circular cross-section has been described. However, the present invention is not necessarily limited to this, and other cross-sectional shapes other than the circular shape can be used. It is. Examples of other cross-sectional shapes include polygonal shapes such as a square shape and a hexagonal shape. In this case, since the outer peripheral surface of the rod-shaped member is angular, it is difficult to screw the fixing member, but the fixing member can be fixed to the rod-shaped member by fitting or welding. Alternatively, it is possible to provide a convex portion having a circular cross section and screw and fix the fixing member to the convex portion.

  In the fifth embodiment (see FIG. 7), the case where one of the fixing portions 331 and 332 is formed as a reverse screw has been described, but the present invention is not necessarily limited thereto. Naturally, it is possible to form a series of screws in the same direction without dividing the fixing portions 331 and 332 into two and making one of them a reverse screw. In this case, the rod-shaped members 10 can be connected to the fixing member 330 by screwing the rod-shaped members 10 from both sides. Since the engaging groove 12 is formed in the rod-shaped member 10 in the longitudinal direction, the protruding portion 320b and the insertion portion 320a of the engaged member 320 are inserted from the end of the engaging groove 12 and slid to form a rod-shaped member. The engaged member 320 can be attached to the member 10.

DESCRIPTION OF SYMBOLS 1,401 Joining structure 10,110,210,410 Bar-shaped member 11,211,411 Body part 12,122,212 Engaging groove 13 Convex part 13a Outer peripheral surface 20,23,120,220,320,420,421 Covered Engagement member 21a, 22a, 220a, 320a, 420a Insertion part 21b, 22b, 220b, 320b, 420b Protrusion part 21c, 320c, 420c, 420d Overhang part 23a Hole part 30, 230, 330 Fixed member 32, 231, 331 , 332 fixing part 32a inner peripheral surface

Claims (8)

A rod-shaped member having a rod-shaped main body, and a plurality of engaging grooves formed inward from the outer periphery along the longitudinal direction of the main body;
An engaged member having an insertion portion that is inserted into an engagement groove formed in the rod-shaped member, and a protruding portion that protrudes from both sides of the insertion portion along the longitudinal direction of the main body portion;
And a fixing member having a fixing portion into which the outer peripheral surface of the rod-shaped member is inserted while facing the protruding portion of the engaged member to the inside. The engaged member includes an overhanging portion protruding along the axis of the rod-shaped member with a gap from the protruding portion,
The joint structure according to claim 1, wherein the projecting portion is located on an outer peripheral side of the fixing member. The rod-shaped member includes a convex portion that protrudes in the longitudinal direction from both ends of the main body portion and whose thickness is set to be thinner than the thickness of the main body portion,
The engaging groove extends to the convex portion, and the protruding portion is inserted into the engaging groove extended to the convex portion without protruding from the outer peripheral surface of the convex portion. The joining structure according to claim 1 or 2.   The said main-body part and the said fixing member are set to the same thickness, and it forms so that the outer peripheral surface of the said main-body part and the outer peripheral surface of the said fixing member may become flush | level. Bonding structure. Among the engaging grooves formed in a plurality in the rod-shaped member, adjacent engaging grooves have a central angle set to 30 ° or 60 °,
The joined structure according to any one of claims 1 to 4, wherein the engaged members are formed in the same size in a rectangular shape in plan view.   The joining structure according to claim 1, wherein the fixing member is formed in a bottomless cylindrical shape, and the fixing portion is formed on both sides of the fixing member. .   The joint structure according to any one of claims 1 to 6, wherein an outer peripheral surface of the main body portion or the convex portion and an inner peripheral surface of the fixing portion are configured to be screwed together.   The joined structure according to any one of claims 1 to 7, wherein the engaged member is formed in a plate shape and includes a hole portion that is formed to penetrate in the thickness direction.

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