JP2013007475A - Connecting tool of structural material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting tool capable of easily positioning a female screw to a screw.SOLUTION: In the connecting tools 1 and 21 which are cylindrical bodies 2 and 22 inserted in a through hole 16 provided in a structural material 11b when the end of the structural material 11b abuts on the side wall of the structural material 11a and vertically connect it, a screw 18 penetrating the structural material 11a is screwed to the female screws 3 and 23 thereby connecting both the structural materials 11a and 11b. The connecting tools 1 and 21 include a pair of holding members 5 and 24 held on the inner wall surface 19 of the structural material 11b when inserted in the through hole 16.

Description

  The present invention relates to a connecting jig for a structural material.

  Conventionally, a structural material such as an aluminum frame is used when forming various panels, partitions and the like. The structural material is, for example, a hollow rectangular long body made of aluminum or the like, and has open ends at both ends.

  When the structural members are coupled perpendicularly to each other, as shown in FIG. 6, first, the end portion of the second structural member 11b is brought into contact with the side wall of the first structural member 11a to thereby form the second structure. A connecting jig 31 made of a cylindrical body 32 is inserted into a through hole 16 provided in the material 11b in a direction orthogonal to the axial direction thereof. As the connecting jig 31, for example, one having a female screw portion 33 at the center of a cylindrical body 32 is known (see, for example, Patent Document 1).

  Next, a screw hole 17 penetrating in a direction orthogonal to the axial direction of the first structural member 11a is formed at a position opposite to the connecting jig 31 of the first structural member 11a. A screw (bolt) 18 is inserted. Then, by screwing the screw 18 to the female screw portion 33 of the connecting jig 31, the first structural member 11a and the second structural member 11b can be vertically coupled to each other.

JP 2007-303525 A

  However, since the conventional connecting jig must be supported by fingers when inserted into the through hole, the female screw portion may not coincide with the screw insertion position. There is a disadvantage that it may be difficult to screw the screw.

  The conventional connecting jig is provided with another through-hole parallel to the female screw portion, and provided with a member inserted into the through-hole in another member fitted to the end of the structural material. The female screw portion can be positioned with respect to the screw. However, when doing this, there is a disadvantage that the separate member is required and the work becomes complicated.

  It is an object of the present invention to provide a connecting jig that can easily solve the disadvantages and can easily position the female screw portion with respect to the screw.

  In order to achieve such an object, the present invention, when the hollow square structural members are bonded perpendicularly to each other by bringing the end of the second structural member into contact with the side wall of the first structural member. A columnar body that is inserted into a through hole provided in a direction perpendicular to the axial direction of the second structural material, and the first structural material is attached to the female screw portion provided in the center of the cylindrical body. In a connecting jig that joins both structural members by screwing them through in a direction perpendicular to the axial direction, the screw is locked to the inner wall surface of the second structural member when inserted into the through hole. Thus, a pair of locking members for positioning the female screw portion so as to coincide with the threading position of the screw are provided at both end portions of the columnar body.

  In the structural material connecting jig according to the present invention, when the cylindrical body is inserted into the through hole provided in the second structural material, the locking members at both ends of the cylindrical body are the second structural body. It is locked to the inner wall. As a result, the female screw portion is positioned at a position where the screw that penetrates the first structure is screwed in the length direction of the through hole. Therefore, according to the connecting jig for structural members of the present invention, the female screw portion can be easily positioned by simply inserting the cylindrical body into the through hole.

  Further, the structural material connecting jig of the present invention includes a rib that extends along the axial direction and connects opposite inner wall surfaces and includes a cylindrical portion at the center, and the through hole vertically cuts the rib. It can apply to the structural material currently formed. In this case, the columnar body is positioned so that the female screw portion communicates with the cylindrical portion when inserted into the through hole, and the locking member is locked to the rib. It is preferable that the rotation is prevented.

  By doing so, the female screw portion is positioned at a position where the screw passing through the first structure is screwed in the length direction of the through hole and the circumferential direction of the cylindrical body. The screw can be guided to the female screw portion by the cylindrical portion.

  In the structural material connecting jig according to the present invention, it is preferable that the locking member is an O-ring disposed on the outer peripheral surface of the cylindrical body in parallel with the circumferential direction. When the columnar body is inserted into the through-hole, the O-ring can easily pass through the side wall portion of the second structural member by elastically contracting, After passing, the original shape can be restored elastically and locked to the inner wall of the second structure.

  Further, when the structural material includes the rib, when the O-ring passes through the side wall portion and recovers its original shape, the rib bites into the O-ring so that the O-ring Locked by the rib, the columnar body can be prevented from rotating. Therefore, in this case, when the connecting member for the structural material of the present invention inserts the cylindrical body into the through-hole, if the position of the female screw portion in the circumferential direction of the cylindrical body is determined, After the insertion into the through hole, the rib can bite into the O-ring, so that the position can be maintained.

  In the structural material connecting jig according to the present invention, the locking member includes a spherical portion protruding outward from an outer peripheral surface of the cylindrical body, and the spherical portion is provided inside the cylindrical body. It is preferable that the cylindrical member is provided so as to be able to protrude and retract by being biased outward by the elastic member.

  When the cylindrical body is inserted into the through-hole, the spherical surface portion easily sinks into the cylindrical body against the urging force of the elastic member, thereby facilitating the side wall portion of the second structural member. Can pass through. Further, after passing through the side wall portion, the spherical surface portion is locked to the inner wall of the second structure body by projecting outward from the outer peripheral surface of the columnar body by the biasing force of the elastic member. be able to.

  When the pair of locking members includes the spherical portion, the pair of locking members are preferably formed with a predetermined interval in the circumferential direction of the cylindrical portion. Here, when the structural material includes the ribs, it is preferable that an interval in the circumferential direction of the cylindrical portion of the pair of locking members is an interval corresponding to the thickness of the rib.

  In this way, when the spherical surface portion passes through the side wall portion and protrudes outward from the outer peripheral surface of the cylindrical body, the spherical surface portions are respectively locked to different surfaces of the rib. As a result, the columnar body can be prevented from rotating. Therefore, in this case, according to the connecting jig for structural members of the present invention, the internal thread portion can be connected to the length direction of the through hole and the cylindrical body simply by inserting the cylindrical body into the through hole. In the circumferential direction, the screw can be positioned at a position where the screw penetrating the first structure is screwed.

The figure which shows the structural example of the connection jig | tool of the structural material of this invention. The perspective view which shows one structural example of a structural material. Explanatory sectional drawing which shows the state which couple | bonds structure materials vertically with the connection jig | tool of the structure material of this invention. Explanatory sectional drawing which expands and shows the principal part of FIG. Explanatory sectional drawing which shows the modification of FIG. Explanatory sectional drawing which shows the state which couple | bonds structure materials perpendicularly with the conventional connection jig | tool.

  Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

  As shown in FIG. 1A, the connecting jig 1 of the present embodiment includes a solid cylindrical body 2, a female screw portion 3 formed at the center of the cylindrical body 2, and circumferential directions at both ends. And an O-ring 5 as a locking member fitted to the annular groove 4. The female screw portion 3 is a through-hole formed in a direction perpendicular to the axial direction of the cylindrical body 2 along the diameter of the cylindrical body 2.

  The connecting jig 1 of this embodiment is used when the structural members 11 shown in FIG. The structural member 11 is a hollow rectangular long body having a substantially square cross-sectional shape, and includes open ends 12 at both ends, and ribs 13 and 14 for connecting opposing inner wall surfaces.

  The ribs 13 and 14 extend along the axial direction of the structural member 11, and a hollow cylindrical portion 15 is formed at a portion where the ribs 13 and 14 intersect. The structural material 11 is made of, for example, a light metal such as aluminum or an aluminum alloy, and is used for forming various panels, partitions, and the like.

  When the structural members 11 are vertically coupled to each other using the connecting jig 1, as shown in FIG. 3, the opening end 12 of the second structural member 11b is provided on the side wall of the first structural member 11a. The structural members 11a and 11b are assembled in the contact state. At this time, a through hole 16 is formed in the structural material 11b in a direction orthogonal to the axial direction, and the through hole 16 is formed by cutting the rib 13 vertically. Here, the connecting jig 1 is inserted into the through hole 16 and positioned so that the female screw portion 3 communicates with the cylindrical portion 15.

  On the other hand, a through hole 17 perpendicular to the axial direction of the first structural member 11a is formed in the first structural member 11a at a position facing the cylindrical portion 15 of the second structural member 11b. A screw (bolt) 18 is inserted into the through hole 17. The screw 18 inserted through the through hole 17 of the first structural member 11a is guided to the female screw portion 3 of the connecting jig 1 by the cylindrical portion 15 of the second structural member 11b, and is screwed into the female screw portion 3. Worn. As a result, the structural members 11a and 11b can be vertically coupled to each other.

  Since the connecting jig 1 includes a pair of O-rings 5 at both ends of the cylindrical body 2, the O-ring 5 is structured as shown in FIG. 4 when inserted into the through hole 16. The material 11b is locked by being pressed against the inner wall surface 19 of the material 11b. As a result, the connecting jig 1 can be positioned so that the female screw portion 3 communicates with the cylindrical portion 15 in the axial direction of the through hole 16 simply by being inserted into the through hole 16.

  When the connecting jig 1 is inserted into the through hole 16, the O-ring 5 is elastically contracted, so that it can easily pass through the side wall portion of the second structural member 11b. When the O-ring 5 passes through the side wall portion, the O-ring 5 is elastically restored to its original shape, thereby being pressed against the inner wall surface 19 of the second structure 11b.

  Further, when the O-ring 5 passes through the side wall portion and recovers its original shape, the ribs 13 bite into the O-ring 5 to prevent the cylindrical body 2 from rotating. Therefore, when the connecting jig 1 is positioned so that the female thread portion 3 communicates with the cylindrical portion 15 in the circumferential direction of the columnar body 2 when the columnar body 2 is inserted into the through hole 16, After the insertion into the through hole 16, the rib 13 bites into the O-ring 5 so that the position can be maintained.

  As means for positioning the female screw portion 3 so as to communicate with the cylindrical portion 15 in the circumferential direction of the columnar body 2 when the columnar body 2 is inserted into the through hole 16, both end surfaces of the columnar body 2 are used. A mark corresponding to the outer wall surface of the structural member 11b can be formed. As the mark, when the structural member 11b includes the groove portion 20 extending in the axial direction at the center of the outer wall surface, the groove portion 6 that crosses the end surface along the axis of the female screw portion 3 is provided on both end surfaces of the cylindrical body 2. Can be provided.

  In this case, by aligning the groove portions 6 and 20 so as to form a straight line, the female screw portion 3 can be positioned so as to communicate with the cylindrical portion 15 in the circumferential direction of the columnar body 2.

  In the present embodiment, the connecting jig 1 is described, but a connecting jig 21 shown in FIG. 1B can be used instead of the connecting jig 1. As shown on the left side of FIG. 1B, the connecting jig 21 includes a solid cylindrical body 22, a female screw portion 23 formed at the center of the cylindrical body 22, and both ends of the cylindrical body 22. And a spherical body 24 as a locking member that protrudes outward from the outer peripheral surface of the cylindrical body 22. The female screw portion 23 is a through hole formed in a direction orthogonal to the axial direction of the cylindrical body 22 along the diameter of the cylindrical body 22.

  As shown in FIG. 1 (c), the spherical body 24 is accommodated in a hole 25 formed in the cylindrical body 22, and attached to the outside by a spring 26 as an elastic member disposed in the hole 25. By being urged, the cylindrical body 22 is provided so as to be able to protrude and retract. A caulking portion (not shown) that protrudes from the outer periphery to the inner periphery is formed at the opening of the hole 25 facing the outer peripheral surface of the cylindrical body 22 to prevent the spherical body 24 from coming off. .

  Further, as shown on the right side of FIG. 1B, the pair of spherical bodies 24 has an interval corresponding to the thickness of the rib 13 in the circumferential direction of the cylindrical body 22 on the outer peripheral surface of the cylindrical body 22. Is formed. For this reason, the pair of hole portions 25 are formed to be inclined at a predetermined angle with respect to the axial direction of the female screw portion 23.

  The connecting jig 21 is positioned so that the female screw portion 23 communicates with the cylindrical portion 15, so that the structural members 11 a and 11 b can be vertically connected to each other in the same manner as the connecting member 1.

  Since the connecting jig 21 is provided with a pair of spherical bodies 24 at both ends of the cylindrical body 22, when inserted into the through-hole 16, the spherical body 24 becomes the structural material 11 b as shown in FIG. 5. The inner wall surface 19 is locked. As a result, the connecting jig 21 can be positioned so that the female screw portion 23 communicates with the cylindrical portion 15 in the axial direction of the through hole 16 simply by being inserted into the through hole 16.

  When the connecting jig 21 is inserted into the through-hole 16, the spherical body 24 is immersed in the hole 25 against the biasing force of the spring 26, so that the side wall of the second structural member 11b can be easily formed. Can pass through. When the spherical body 24 passes through the side wall portion, it protrudes outward from the outer peripheral surface of the columnar body 22 by the biasing force of the spring 26, thereby being locked to the inner wall surface 19 of the second structure 11b. .

  At this time, the pair of spherical bodies 24 are formed on the outer circumferential surface of the columnar body 22 with an interval corresponding to the thickness of the rib 13 in the circumferential direction of the columnar body 22. The cylindrical body 22 can be prevented from rotating by sandwiching the rib 13 from both sides. Therefore, according to the connecting jig 21, by inserting the cylindrical body 22 into the through hole 16, the female screw portion 23 can be connected to the cylindrical portion in the length direction of the through hole 16 and the circumferential direction of the cylindrical body 22. 15 can be positioned so as to communicate with 15.

  In the present embodiment, the structural material 11 is described as including the ribs 13 and 14, but the structural material 11 may not include the ribs 13 and 14. In the present embodiment, the structural material 11 is described as having a square cross-sectional shape, but the structural material 11 may have a rectangular cross-sectional shape.

  In the present embodiment, the connecting jig 21 is described as including a spherical body 24 as a locking member. However, the locking member is a portion protruding outward from the outer peripheral surface of the columnar body 22. Is not limited to the spherical body 24.

  DESCRIPTION OF SYMBOLS 1,21 ... Connection jig, 2,22 ... Columnar body, 3,23 ... Female thread part, 5 ... O-ring (locking member), 11 ... Structural material, 13 ... Rib, 15 ... Cylindrical part, DESCRIPTION OF SYMBOLS 16 ... Through-hole, 18 ... Screw, 19 ... Inner wall surface, 24 ... Spherical body (locking member), 26 ... Spring (elastic member).

Claims (5)

When hollow square structural members are joined perpendicularly to each other by bringing the end of the second structural member into contact with the side walls of the first structural member and perpendicular to each other, the axial direction of the second structural member is orthogonal to the second structural member. A screw that passes through the first structural member in a direction perpendicular to the axial direction of the female screw provided in the center of the cylindrical body. In the connecting jig that joins both structural materials by screwing,
When inserted into the through-hole, a pair of locking members for positioning the female screw portion so as to coincide with the threading position of the screw by being locked to the inner wall surface of the second structural member A connecting jig for a structural material, provided at both ends of a cylindrical body.   2. The structural material connecting jig according to claim 1, wherein the structural material includes a rib that extends along an axial direction and connects opposing inner wall surfaces and includes a cylindrical portion at a central portion, and the through hole Is formed by cutting the rib vertically, and when the cylindrical body is inserted into the through hole, the female screw portion is positioned so as to communicate with the cylindrical portion, and the locking member The structural material connecting jig is characterized in that the structural member is locked by the rib and is prevented from rotating.   3. The structural material connecting jig according to claim 1, wherein the locking member is an O-ring disposed on an outer peripheral surface of the cylindrical body in parallel with a circumferential direction. Structural material connection jig.   3. The structural material connecting jig according to claim 1, wherein the locking member includes a spherical portion that protrudes outward from an outer peripheral surface of the cylindrical body, and the spherical portion is formed of the cylindrical body. A structural material connecting jig characterized in that it is provided so as to be able to protrude and retract from the outer peripheral surface of the cylindrical body by being urged outward by an elastic member provided inside.   5. The structural material connection jig according to claim 4, wherein the pair of locking members are formed at a predetermined interval in a circumferential direction of the cylindrical portion. jig.

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