JP5185523B2 - Anti-loosening component and carport using the same - Google Patents

Description

  The present invention relates to a locking component that prevents rotation so that a bolt that connects members does not loosen and a carport using the same, and more particularly, a locking component that can prevent a screw fixing the component from loosening and the same. Regarding carports.

2. Description of the Related Art Conventionally, a carport is used in which a frame member is configured by attaching a beam to a support column erected on the ground, and a roof body is fixed to the upper portion of the frame member. The support column and the beam are formed in a hollow cross section, and a connection member formed in an approximately L shape is inserted from the upper end surface of the support column and one end surface of the beam, and the support column, the connection member, and the beam and the connection member are respectively bolted. To be connected. An example of such a carport is disclosed in Patent Document 1.
JP 2005-282179 A

  The support column and the beam are thus connected via the connecting member. However, when the beam is bent by wind or the like, a load is repeatedly applied to the bolt that connects the support column or the beam and the connecting member. As a result, in conventional carports, bolts may loosen over time, requiring regular maintenance such as retightening the bolts.

  The present invention has been made to solve the above-described problems, and a loosening prevention component that can prevent loosening when members (for example, a support and a connection member or a beam and a connection member) are connected with bolts, and An object of the present invention is to provide a carport that can be used to prevent loosening of a bolt that connects a column and a beam and eliminates maintenance.

In order to solve the above-mentioned problems, a loosening prevention component according to the present invention connects a first member and a second member, is inserted from the first member side and has a polygonal head, and the bolt and screw. In the anti-loosening component that prevents the bolt from rotating so that the bolt of the fastener comprising the mating nut does not loosen,
A rotation preventing portion that abuts at least one side surface of the head of the bolt to prevent its rotation, and a fixing hole for screwing to the first member, and around the fixing hole A step portion for accommodating a head portion of the screw to be inserted is formed, and a protrusion portion protruding toward the first member side is formed, and the protrusion portion is freely contactable with the first member. It is configured as a feature.

Further, the carport according to the present invention is a carport composed of a frame material in which a beam is supported by a support and a roof body supported by the beam of the frame material,
The struts and beams constituting the frame material are each formed in a hollow cross-section, and are connected via a connection member formed in a substantially L-shaped cross-section that is inserted into the hollow interior from each end face,
The strut and the connecting member and the beam and the connecting member are respectively fixed by a fastener including a bolt having a polygonal head inserted through the outer surface of the strut or the beam and a nut fixed to the inner surface of the connecting member, On the outer surface of the column or beam, a loosening prevention component is attached to the outer periphery of the head of the bolt,
The loosening prevention component includes a rotation prevention portion that abuts at least one side surface of the head of the bolt and prevents its rotation, and a fixing hole for screwing the post or beam. Around the periphery, a step portion for accommodating the head portion of the screw to be inserted is formed, and a protrusion portion protruding toward the column or beam side is formed, and the protrusion portion contacts the column or beam. The screw that can be freely contacted and is inserted into the fixing hole is fixed only to the column or beam of the column or beam and the connecting member.

  Furthermore, the carport according to the present invention is characterized in that the connecting member has a through-hole having a diameter larger than a screw diameter at a position corresponding to the fixing hole of the locking member.

  Furthermore, the carport according to the present invention is characterized in that the rotation preventing part of the locking part is formed as a hole having a shape surrounding the outer periphery of the head of the bolt over the entire circumference. .

  The carport according to the present invention is characterized in that the anti-rotation part of the locking part is formed so as to have more corners than the corners of the bolt head.

  According to the loosening prevention component according to the present invention, the anti-loosening component includes a rotation preventing portion that abuts at least one side surface of the bolt head and prevents the rotation, and a fixing hole for screwing the first member. By becoming, the looseness of the bolt which connects members can be prevented.

  According to the carport according to the present invention, a locking part is attached to the outer periphery of the bolt head on the outer surface of the column or beam, and the locking part contacts at least one side of the bolt head and rotates. The anti-rotation part that prevents rotation and a fixing hole for screwing to the column or beam, and the screw inserted through the fixing hole is fixed only to the column or beam of the column or beam and the connecting member Therefore, the bolt can be prevented from loosening even when a load is repeatedly applied between the column or the beam and the connecting member, and the screw for fixing the loosening prevention component is also prevented from touching the connecting member. As a result, loosening due to repeated loads can be prevented, so that maintenance for retightening bolts and screws periodically can be eliminated.

  Further, according to the carport according to the present invention, the connecting member has a through hole having a diameter larger than the screw diameter at a position corresponding to the fixing hole of the locking member. On the other hand, it can be sure not to touch.

  Furthermore, according to the carport according to the present invention, the rotation prevention portion of the locking part is formed as a hole having a shape surrounding the outer periphery of the head of the bolt over the entire circumference, so that the rotation prevention portion can The head can be held securely, and a reliable locking can be achieved.

  Furthermore, according to the carport according to the present invention, the rotation preventing portion of the locking part is formed so as to have a larger number of corners than the corner of the bolt head, so that the rotation preventing portion is made of the bolt. It can contact | abut to the outer peripheral surface of a head reliably.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a carport in the present embodiment, and FIG. 2 is a side view. As shown in each of these drawings, the carport in this embodiment has a front frame member 1 and a rear frame member 2 in which a beam 4 is provided in a cantilever manner on a column 3 standing on the ground in the front-rear direction. The roof body 5 is supported by the beams 4 of the front frame material 1 and the rear frame material 2.

  The support column 3 and the beam 4 are made of an aluminum extrusion mold and have a hollow cross section. The beam 4 is formed in a straight line shape and is attached so as to be inclined upward from the connecting portion with the support column 3 toward the tip portion. Further, the support column 3 of the front frame material 1 is formed to be higher than the support column 3 of the rear frame material 2. The roof body 5 is formed to have a substantially square planar shape, and is supported by the front frame material 1 and the rear frame material 2 so that the corners on the rear column 3 side become the lowermost part and are diagonal to it. These are arranged in an inclined manner so that the corners on the front side of the front beam 4 are the uppermost part.

  The roof body 5 is configured to have a substantially planar shape by housing a plurality of panel members 14 in a frame body 10 formed by forming a front frame 11, a rear frame 12, and left and right side frames 13, 13 in a rectangular shape. Has been. The front frame 11, the rear frame 12, and the left and right side frames 13, 13 are made of an aluminum extrusion mold and are formed in a hollow cross section.

  Of the front frame 11, the rear frame 12, and the left and right side frames 13 constituting the frame body 10, a water collecting rod 12 a is integrally formed on the rear frame 12. In addition, a rain gutter 30 is provided on the column 3 of the rear frame material 2, and the water collecting gutter 12 a and the gutter 30 are connected by a connection gutter 31. The rain that has fallen on the roof body 5 flows along the slope toward the rear of the roof body 5, in particular toward the corners on the rear column 3 that is the lowermost part. Led. The water guided to the water collecting basin 12a is guided to the rain gutter 30 via the connecting basin 31 and drained to the outside from there.

  Next, the connection part of the support | pillar 3 and the beam 4 is demonstrated in detail. FIG. 3 is an enlarged front view of a connecting portion between the support column 3 and the beam 4 in the front frame member 1. The rear frame material 2 has a similar structure. A notch is formed on the side surface of the upper end of the column 3 so that the end of the beam 4 is slightly swollen, and the beam 4 is disposed at an angle slightly larger than 90 ° with respect to the column 3.

  The connecting member 20 is inserted into the column 3 and the beam 4 having a hollow cross section from the respective end surfaces. The connecting member 20 is formed in a substantially L shape, and its outer shape is formed so that it can be inserted into the hollow interior of the column 3 and the beam 4, respectively. FIG. 4 shows a front view and a side view of the connecting member 20. 4A is a front view of the connecting member 20, and FIG. 4B is a side view of the connecting member 20.

  As shown in FIG. 4A, the connecting member 20 corresponds to the angle formed by the column 3 and the beam 4 between the column insertion portion 21 inserted into the column 3 and the beam insertion portion 22 inserted into the beam 4. They are connected with an angle to form a substantially L shape. Also, as shown in FIG. 4B, the beam insertion portion 22 has a substantially rectangular cross section and is formed in a hollow shape, and its outer shape is formed so as to substantially fit the hollow inner surface of the beam 4. Yes. Moreover, the support | pillar insertion part 21 also has the same cross-sectional shape, and the external shape is formed so that it may fit the hollow inner surface of the support | pillar 3 substantially.

  The connecting member 20 is formed with a plurality of bolt insertion holes 23 in the longitudinal direction for fixing bolts on both side surfaces of the column insertion part 21 and the beam insertion part 22, and the part where the bolt insertion hole 23 is formed. A nut 25 is fixed on the inner surface side. The nut 25 is fixed to the inner surface of the connecting member 20 by welding. Further, through holes 27 and 27 are formed in the vicinity of the upper and lower sides of the respective bolt insertion holes 23. The through hole 27 will be described in detail later. In addition, the through-holes 27 provided in the vicinity of the end portions of the column insertion portion 21 and the beam insertion portion 22 are formed as U-shaped holes that reach these end portions.

  FIG. 5 shows an AA sectional view (FIG. 5A) and a BB sectional view (FIG. 5B) of FIG. As shown in FIG. 5 (a), the strut insertion portion 21 of the connecting member 20 is formed in a superposed manner with the outer surfaces of both side surfaces abutting against the inner surface of the strut 3. A bolt 26 inserted into the bolt insertion hole 23 is screwed into a previously fixed nut 25, and the support column 3 and the connecting member 20 are fixed by a fastener 24 constituted by the bolt 26 and the nut 25.

  Further, as shown in FIG. 5B, the same applies to the beam insertion portion 22 of the connecting member 20, and the outer surfaces of the both side surfaces abut against the inner surface of the beam 4, respectively. The beam 4 and the connecting member 20 are fixed by a fastener 24 including a nut 25 fixed in advance and a bolt 26 inserted into the bolt insertion hole 23 from the outer surface side of the beam 4.

  As shown in FIG. 3, the head 26a of the bolt 26 is exposed on the outer surface of the column 3 and the beam 4, and a loosening prevention component 40 is attached to prevent the rotation of the head 26a. FIG. 6 shows a front view (FIG. 6A) and a side view (FIG. 6B) of the locking member 40. As shown in FIG. 6A, the loosening prevention component 40 is formed as a piece-like member having a substantially bowl shape. Further, the loosening prevention component 40 is made of a resin material. However, the material is not limited to the resin material, and a metal material or the like may be used.

  The locking member 40 includes a rotation preventing portion 41 that prevents the bolt 26 from rotating after fastening, and a fixing hole 42 through which a screw 50 that fixes the locking component 40 to the column 3 or the beam 4 is inserted. The head portion 26a of the bolt 26 is formed in a regular hexagon, and thus the head portion 26a includes six planar peripheral surfaces and six corners. The rotation prevention part 41 of the locking part 40 has a shape that comes into contact with the peripheral surface of the head part 26a of the bolt 26 from the outer peripheral side, thereby preventing the head part 26a from rotating. .

  Specifically, the rotation preventing part 41 of the locking part 40 is formed as a hole having 12 corners on the inner peripheral surface. The rotation preventing portion 41 is formed in a size that substantially fits the head portion 26a of the bolt 26, and surrounds the regular hexagonal head portion 26a over the entire circumference. As a result, the six peripheral surfaces of the head portion 26a abut against the inner peripheral surface of the rotation preventing portion 41, and the head portion 26a is held so as not to rotate. Since the inner peripheral surface of the rotation preventing portion 41 is formed so as to have more corners than the corners of the bolts 26, even if the angle of the head 26a when the bolts 26 are fastened is more reliable. In addition, the circumferential surface of the head 26 a can be brought into contact with the rotation preventing portion 41.

  As shown in FIG. 6B, the fixing hole 42 has a stepped portion 42a around which the head of the screw 50 is accommodated, and as shown in FIG. Part 42b is formed. The end surface of the protruding portion 42b abuts on the outer surface of the column 3 or the beam 4, and the rotation prevention unit 41 is slightly separated from the outer surface of the column 3 or the beam 4. Thereby, the rotation prevention part 41 can be reliably contact | abutted with respect to the head 26a of the volt | bolt 26. FIG.

  FIG. 7 shows an enlarged view of a portion fixed to the connecting member 20 of the column 3 in FIG. 3, and FIG. 8 shows an enlarged view of a fixed portion of the beam 4 to the connecting member in FIG. As shown in FIG. 7, a bolt hole 3 a is formed in the portion of the column 3 that is fixed by the fastener 24. The bolt hole 3a is formed as a through hole having a diameter into which the bolt 26 can be inserted. Further, a screw hole 3b for screwing a screw 50 for fixing the loosening prevention component 40 is formed in the column 3 in the vicinity of the bolt hole 3a. Further, as shown in FIG. 8, the beam 4 is also formed with a bolt hole 4a in a portion fixed by the fastener 24, and a screw hole 4b into which a screw 50 is screwed.

  As shown in FIG. 7, the screw 50 that fixes the loosening prevention component 40 in the column 3 is screwed into the screw hole 3 b of the column 3, and the tip of the screw 50 reaches the connecting member 20 that overlaps on the inner peripheral surface of the column 3. . The connecting member 20 is formed with the above-described through hole 27 at a position corresponding to this. The through hole 27 is formed to have a diameter larger than that of the screw 50, so that the screw 50 is only inserted through the through hole 27 and does not touch the connecting member 20. That is, the loosening prevention component 40 is screwed and fixed only to the support column 3 with the screw 50 and is not fixed to the connecting member 20.

  Further, as shown in FIG. 8, the screw 50 in the beam 4 is also screwed into the screw hole 4 b of the beam 4 and is fixed to the beam 4, while the connection member 20 is fixed by the through hole 27. I try not to touch it. That is, the locking member 40 is screwed and fixed only to the beam 4 by the screw 50 and is not fixed to the connecting member 20. Since the through holes 27 of the connecting member 20 are formed on both sides of the bolt insertion hole 23, the screw hole 3b of the support column 3 or the screw hole 4b of the beam 4 is formed on either side of the bolt insertion hole 23. Thus, the mounting direction of the locking part 40 can be arbitrarily set.

  The through hole 27 is larger than the diameter of the screw 50, and the coupling member 20 does not touch the screw 50 even when vibration occurs between the column 3 or the beam 4 and the coupling member 20 due to the influence of wind or the like. It is necessary to form in the size. By forming the through hole 27 of the connecting member 20 in this way, the screw 50 is not affected by the vibration generated between the column 3 or the beam 4 and the connecting member 20, and the screw 50 is loosened. Can be prevented.

  By constituting the loosening prevention part 40 and its fixing structure as described above, even if vibration occurs between the column 3 or the beam 4 and the connecting member 20 due to the influence of wind or the like, a screw for fixing the loosening prevention part 40 The head 26a of the bolt 26 can be held so as not to rotate by the locking part 40 that does not loosen and does not fall off, so that the bolt 26 does not loosen and prevents dropping. can do. As a result, maintenance such as retightening the bolts 26 can be eliminated.

  FIG. 9 shows an exploded side view of the fastener 24 and the locking part 40 with respect to the column 3. As shown in this figure, a bolt 26 is attached to the bolt hole 3 a in the support column 3 in which the connecting member 20 is housed in the hollow, and connects the support column 3 and the connecting member 20. When the bolt 26 is attached, the loosening prevention component 40 is attached to the column 3. At this time, the protrusion 42b formed on the side of the support 3 of the fixing hole 42 of the locking member 40 is brought into contact with the outer surface of the support 3 so that the rotation prevention unit 41 is brought into contact with the outer peripheral surface of the head 26a of the bolt 26. Can be touched.

  Further, the locking member 40 is attached with a screw 50 to the fixing hole 42, and the locking member 40 is fixed by screwing the screw 50 to the support column 3. As described above, the screw 50 is fixed only to the support column 3 and does not touch the connecting member 20 as described above. Therefore, the screw 50 is affected by the repeated load generated between the support column 3 and the connecting member 20. It can be made not to receive.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea. In this embodiment, the rotation prevention part 41 of the locking part 40 is formed as a hole surrounding the entire circumference of the head 26a of the bolt 26, but the rotation prevention part 41 is at least one surface of the head 26a. The rotation can be prevented by coming into contact with. Therefore, for example, the rotation preventing portion 41 can be formed in a substantially semicircular shape, and the inner peripheral surface thereof can be formed in the same shape as that of the present embodiment, and the circumferential length of the rotation preventing portion 41 is smaller than that, or It can also be enlarged.

  Further, since the screw 50 for fixing the loosening prevention component 40 is fixed only to the support column 3 or the beam 4 and not fixed to the connecting member 20, the screw 50 is attached to the connecting member 20 as in this embodiment. The through holes 27 larger than the diameter are not limited to the ones, and the screw holes 3b and 4b for screwing the screws 50 are formed at positions away from the ends of the connecting members 20 of the columns 3 or the beams 4. Good.

  Furthermore, the loosening prevention component 40 used in the present embodiment is not limited to the carport but can be used in other things. That is, the first member (corresponding to the support column 3 or the beam 4 of this embodiment) and the second member (corresponding to the connecting member of this embodiment) are connected by a fastener 24 including a bolt 26 and a nut 25. The locking member 40 can be attached to the bolt 26, and the locking member 40 can be screwed to the first member.

It is a front view of the carport in this embodiment. It is a side view of a carport. It is an enlarged front view of the connection part of a support | pillar and a beam. It is the front view and side view of a connection member. It is AA sectional drawing of FIG. 3, and BB sectional drawing. It is the front view and side view of a locking part. It is an enlarged view of a fixed part with the connection member of a support | pillar. It is an enlarged view of a fixed part with the connection member of a beam. It is a decomposition | disassembly side view of the fastener with respect to a support | pillar, and a locking component.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front frame material 2 Rear frame material 3 Support | pillar 3a Bolt hole 3b Screw hole 4 Beam 4a Bolt hole 4b Screw hole 5 Roof body 10 Frame body 20 Connecting member 21 Post insertion part 22 Beam insertion part 23 Bolt insertion hole 24 Fastener 25 Nut 26 Bolt 26a Head 26b Threaded portion 27 Through hole 40 Loosening prevention part 41 Anti-rotation part 42 Fixing hole 50 Screw

Claims (5)

The bolt of the fastener comprising a bolt having a polygonal head and a nut screwed to the bolt is connected to the first member and the second member and inserted from the first member side so that the bolt does not loosen. In the locking parts that prevent the rotation,
A rotation preventing portion that abuts at least one side surface of the head of the bolt to prevent its rotation, and a fixing hole for screwing to the first member, and around the fixing hole A step portion for accommodating a head portion of the screw to be inserted is formed, and a protrusion portion protruding toward the first member side is formed, and the protrusion portion is freely contactable with the first member. Anti-loosening part characterized by being made. In a carport composed of a frame material in which a beam is supported by a column and a roof body supported by the beam of the frame material,
The struts and beams constituting the frame material are each formed in a hollow cross-section, and are connected via a connection member formed in a substantially L-shaped cross-section that is inserted into the hollow interior from each end face,
The strut and the connecting member and the beam and the connecting member are respectively fixed by a fastener including a bolt having a polygonal head inserted through the outer surface of the strut or the beam and a nut fixed to the inner surface of the connecting member, On the outer surface of the column or beam, a loosening prevention component is attached to the outer periphery of the head of the bolt,
The loosening prevention component includes a rotation prevention portion that abuts at least one side surface of the head of the bolt and prevents its rotation, and a fixing hole for screwing the post or beam. Around the periphery, a step portion for accommodating the head portion of the screw to be inserted is formed, and a protrusion portion protruding toward the column or beam side is formed, and the protrusion portion contacts the column or beam. A carport characterized in that a screw that is freely contactable and that is inserted into the fixing hole is fixed only to the column or beam of the column or beam and the connecting member.   The carport according to claim 2, wherein the connecting member has a through-hole having a diameter larger than a screw diameter at a position corresponding to the fixing hole of the locking member.   4. The carport according to claim 2, wherein the anti-rotation part of the locking part is formed as a hole having a shape surrounding the outer periphery of the head of the bolt over the entire periphery.   5. The carport according to claim 4, wherein the rotation preventing portion of the locking part is formed to have a larger number of corners than a corner of the bolt head.

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