JP6145281B2 - Securing clip - Google Patents

Description

  The present invention relates to a technique for preventing co-rotation of screw elements such as bolts and nuts.

  In a steel structure, a plurality of column members and beam members are connected and fixed with bolts and nuts. When using bolts and nuts to connect and secure building members such as flanges and steel plates, the worker holds either the bolt or nut by hand to prevent co-rotation and rotates the other while tightening. . However, in actual construction sites, other flange parts, steel plates, and other members are built in places where building members are connected and fixed together, so that both the bolt and nut cannot be reached by the operator. There is a case.

  Therefore, as a technique for temporarily fixing the nut to the edge of the steel plate and preventing the rotation of the nut, conventionally, for example, Japanese Patent Application Laid-Open No. 2003-120639 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2000-310212. (Patent Document 2) and clips described in Japanese Utility Model Publication No. 7-40724 (Patent Document 3) are known.

  The clips described in Patent Documents 1 to 3 are premised on including a U-shaped clip that is engaged with an edge of a steel plate. And the clip of patent document 1 has a hexagonal chamber for accommodating a nut. Moreover, the clip nut of patent document 2 has a hexagonal through-hole for positioning a nut. The clip nut described in Patent Document 3 is to weld a nut to a clip.

Japanese Patent Laid-Open No. 2003-120639 JP 2000-310212 A No. 7-40724

  However, the above-described conventional technique causes problems as described below. That is, in the technique described in Patent Document 1, the operation of attaching the locking piece to the clip so that the nut does not fall out of the hexagonal chamber is complicated. In the technique described in Patent Document 2, a spring washer having an outer diameter larger than the through hole of the clip must be attached to the nut, and the work is complicated. In the technique described in Patent Document 3, the work of welding a nut to a clip is complicated. Since the number of nuts and bolts used in the building is enormous, there is room for improvement in construction efficiency.

  Moreover, the clips described in Patent Documents 1 to 3 can first attach the nut to the clip, and then temporarily fix the nut together with the clip to the building. However, the clips described in Patent Documents 1 to 3 have a drawback that the bolt cannot be temporarily fixed to the building. The reason is that the nut does not have a shaft part under the neck, but the bolt has a shaft part under the neck. Therefore, when the head of the bolt is attached to the clips described in Patent Documents 1 to 3, This is because the shaft is caught on the edge of the plate, and the clips cannot be temporarily fixed to the building.

  A first object of the present invention is to provide a fixing clip capable of temporarily fixing a bolt to a building member such as a column member, a beam member, or a brace. A second object of the present invention is to provide a fixing clip capable of easily temporarily fixing a screw element to a building member without requiring a complicated operation.

For this purpose, the fixing clip according to the present invention includes a first plate portion and a second plate portion that are opposed to each other with a gap therebetween, and a third plate portion that connects the base edges of the first and second plate portions. The first plate portion is cut out from the leading edge of the first plate portion toward the third plate portion, passes through the bolt shaft portion, and rises from both side edges of the second plate portion. A pair of wall portions that project toward one plate portion and prevent the bolt head from rotating, and a second plate portion that extends from the edge portion on the distal end side that is far from the third plate portion of the wall portions. And an enlarged wall portion that extends in a direction away from the distal end edge of the first and second plate portions and receives a head portion of a bolt that enters between the pair of wall portions from the distal end side of the first and second plate portions .

  According to the present invention, the notch is formed by simply inserting the fixing clip of the present invention into the edge of the building member through which the bolt is passed and sandwiching the edge of the building member between the first plate portion and the second plate portion. The bolt shaft is received, and the edge of the building member and the head of the bolt are received between the first plate portion and the second plate portion. Therefore, a bolt can be temporarily fixed to a building member such as a column member or a beam member.

  Further, according to the present invention, the work of welding the bolt head to the fixing clip is unnecessary, and the work of attaching another member such as a locking piece or a spring washer to the fixing clip or the bolt head is unnecessary, and the bolt is passed. The bolt can be temporarily fixed to the building member simply by inserting the fixing clip of the present invention into the edge of the building member. Therefore, the bolt can be easily temporarily fixed to the building member without requiring a complicated operation, and even a screw element other than the bolt head can be easily temporarily fixed to the building member.

  Furthermore, according to the present invention, the bolt is simply inserted into the edge of the steel plate from the side in a state where the bolt is inserted upward from the lower surface of the steel plate into the bolt hole drilled in the horizontal steel plate. Can be temporarily fixed upward. Accordingly, it is possible to temporarily fix the bolts upright, which has not been possible with conventional clips.

  As one embodiment of the present invention, the second plate portion is a leaf spring that extends obliquely so as to approach the first plate portion from the proximal end side toward the distal end side. According to such an embodiment, when viewed from the side of the fixing clip, the second plate portion extends in an inclined manner, and the distance between the first plate portion and the leading edge of the second plate portion is reduced. Thereby, a volt | bolt can be temporarily fixed also to a building member with small thickness. Moreover, the space | interval of a 1st plate part and a 2nd plate part can be enlarged by the elastic deformation of a leaf | plate spring, and a volt | bolt can be temporarily fixed also to a thick building member. Therefore, even if the thickness of the building member through which the bolt is passed varies from construction site to construction site, it can be adapted to each building member, and a fixing clip with excellent versatility can be provided. As another embodiment, the first plate portion and the second plate portion may be substantially parallel to each other. Even in such other embodiments, the distance between the first and second plates can be increased by elastically deforming the second plate like a leaf spring. Or you may prepare the fixing clip of an appropriate space | interval for every thickness of a building member.

  The rising height of the pair of wall portions rising from the second plate is not particularly limited. As one embodiment, the rising height of the pair of wall portions may be constant. In such an embodiment, the pair of wall portions may be obliquely continuous following the inclination of the second plate portion, and only a portion of the pair of wall portions farthest from the third plate may contact the building member. If it does so, there exists a possibility that a pair of wall part cannot stop a bolt head appropriately.

  Alternatively, when the second plate is rotated about its proximal end side by the elastic deformation of the second plate, which is a leaf spring, and the distal end side of the second plate moves away from the first plate, the pair is opposite to the above state. Of the wall portions, only the portion closest to the third plate may abut against the building member. If it does so, there still exists a possibility that a pair of wall part cannot stop the head of a bolt appropriately. Therefore, as a preferred embodiment of the present invention, the rising height of the pair of wall portions is formed in an arc shape so as to increase from the distal end side to the proximal end side of the second plate portion and to decrease from the middle. According to this embodiment, since the pair of wall portions are formed in, for example, an arc shape, the pair of wall portions positioned between the distal end edge and the proximal end edge regardless of the inclination angle of the second plate portion. The central region contacts the building member. Therefore, even if the distance between the first and second plates changes due to the elastic deformation of the second plate, which is a leaf spring, the bolt head is received between the central regions of the pair of wall portions, and the center of the pair of wall portions is received. The head can be reliably prevented from rotating in the area.

  In addition to the embodiment in which the second plate itself is a leaf spring, as another embodiment of the present invention, the head portion of the bolt provided between the pair of wall portions provided on the second plate portion is used as the first plate portion. Further, an urging means for urging toward is provided. According to this embodiment, the head of the bolt can be pressed against the building member, and the bolt can be temporarily fixed to the building member. The urging means is a spring or an elastic body provided in advance on the opposing surface of the second plate portion facing the first plate portion. Although the material of this invention is not specifically limited, Preferably it is metal. More preferably, the present invention is formed by punching and bending a stainless steel plate.

  As a preferred embodiment, the notch may be formed to have a width dimension that is smaller than the diameter of the thread of the external thread formed in the shaft portion of the bolt and larger than the diameter of the thread groove of the external thread. According to this embodiment, the shaft portion of the bolt and the notch of the fixing clip are engaged with each other. Thereby, the drop-off of the bolt can be prevented. Also, the bolt head can be brought close to the building member.

A space for receiving the head of the bolt is defined between the pair of walls. Since the space defined by the pair of wall portions opens toward the tip side of the first and second plate portions, the head of the bolt is a pair of wall portions from the tip side of the first and second plate portions. You can easily get in between. Enlargement wall portion as a preferred embodiment, a pair is extended to the pair of wall portions, the distance between the pair of enlarged wall portion farther away from the second plate portion is larger ing. According to this embodiment, a pair of enlarged wall parts receive the bolt heads which enter from the front end side of the first and second plate parts. Thereby, the fixing clip of the present invention can be more easily inserted into the edge of the building member through which the bolt is passed, and the construction efficiency at the construction site is further improved.

  A bolt is passed through a bolt hole of a building member such as a flange portion of a shape steel or a steel plate, and the fixing clip of the present invention is inserted into the building member through which the bolt is passed, so that the head of the bolt can be prevented from rotating. Therefore, even if the operator does not press the bolt head, it is preferable to rotate only the nut in the tightening direction, and labor for tightening the nut and bolt is saved. In addition, since the operator only has to insert the fixing clip of the present invention into the flange of the building member, the handling of the clip is labor-saving compared to the prior art. Therefore, it is possible to improve the construction efficiency without requiring a complicated work like conventional clips. By adopting the present invention, it is physically impossible to hold both the bolt head and the nut by overlapping the flange portions of the shape steel, as in the beam-column joint structure in which the beam members extend from the four sides of the column material. Even when possible, it is possible to reliably prevent the bolts from rotating together during the tightening operation. The present invention may be used to temporarily fix other screw elements in addition to temporarily fixing bolts.

It is a top view which shows the fixing clip which becomes one Embodiment of this invention. It is a bottom view which shows the fixing clip of the embodiment. It is a right view which shows the fixing clip of the embodiment. It is a left view which shows the fixing clip of the embodiment. It is a front view which shows the fixing clip of the embodiment. It is a rear view which shows the fixing clip of the embodiment. It is a top view which shows the state which the fixing clip temporarily fixed the volt | bolt to the building member. It is a side view which shows the state which the fixing clip temporarily fixed the volt | bolt to the building member, (a)-(e) illustrates the building member from which thickness differs. It is a top view which shows the fixed clip used as the modification of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view showing a fixing clip according to an embodiment of the present invention. FIG. 2 is a bottom view showing the fixing clip of the embodiment. FIG. 3 is a right side view showing the fixing clip of the embodiment, FIG. 4 is a left side view showing the fixing clip of the embodiment, and FIGS. 3 and 4 show a state seen from the side of the fixing clip. . FIG. 5 is a front view showing the fixing clip of the embodiment, and shows a state seen from the front end side of the fixing clip. FIG. 6 is a rear view showing the fixing clip of the embodiment, and shows a state viewed from the base end side of the fixing clip. FIG. 7 is a plan view showing a state in which the fixing clip of the embodiment temporarily fixes the bolt to the building member. FIG. 8 is a side view showing a state in which the fixing clip of the embodiment temporarily fixes the bolt to the building member, (a) showing the building member with thickness t1, (b) showing the building member with thickness t2, (C) shows the building member of thickness t3, (d) shows the building member of thickness t4, and (e) shows the building member of thickness t5. The relationship between the thicknesses of these five types of building members is t1 <t2 <t3 <t4 <t5. This embodiment is a fixing clip for temporarily fixing a bolt to a building member such as a flange portion of a shape steel or a steel plate.

  The fixing clip 10 includes a first plate portion 11 and a second plate portion 12 that are opposed to each other with a space therebetween, and a third plate portion 13 that connects the base edges 11s and 12s of the first and second plate portions. Is provided. A building member is received between the first plate portion 11 and the second plate portion 12. The 1st-3rd plate parts 11-13 are flat plates with constant thickness, respectively, and comprise the clip which pinches | interposes a building member. Although not shown, the third plate portion 13 may be processed into a curved surface so that the first to third plate portions 11 to 13 are substantially U-shaped when viewed from the side.

  The fixing clip 10 has a notch 14 formed in the first plate portion 11. The notch 14 is notched from the leading edge 11t of the first plate part 11 toward the third plate part 13, and extends to the central region of the first plate part 11 between the leading edge and the proximal edge. ing. As shown in FIG. 1, the plate portion 12 covers at least the back side of the notch 14. As shown in FIGS. 7 and 8, the shaft portion S of the bolt B is passed through the notch 14, and the shaft portion S is substantially orthogonal to the notch 14. The fixing clip 10 is manufactured by bending a stainless plate punched into a predetermined shape into a U-shape.

  The building member I shown in FIG. 8 is a horizontal flange part of H-section steel. On the upper surface of the building member I, a fixed member (for example, a column joining plate) (not shown) is placed. Then, the bolt B is passed through the building member I and the fixed member, and both are connected and fixed by the bolt B and a nut (not shown). The bolt B is passed through the bolt hole of the building member I from below with the head portion H facing down and the shaft portion S facing up. For this reason, if the bolt B is not supported by the operator's hand, the bolt B comes out of the bolt hole and falls off. In this embodiment, as will be described later, the fixing clip 10 attached to the building member I and the bolt B are engaged with each other, so that the bolt B is temporarily fixed to the building member I without coming out. Further, a wall portion 15 described later restricts the rotation of the head H. As a result, when a nut (not shown) is fastened to the shaft portion S, the temporarily fixed bolt B does not rotate together.

  The operation of the fixing clip 10 will be described in detail. The first to third plate portions 11 to 13 of the fixing clip 10 are U-shaped when viewed from the side. The first plate portion 11 is in contact with the upper surface of the building member I. The wall portion 15 provided in the second plate portion 12 abuts on the lower surface of the building member I by the urging force of the second plate 12 serving as a leaf spring. Thus, the edge of the building member I can be sandwiched between the first and second plate portions 11 and 12. Thereby, the fixing clip 10 is not easily detached from the building member. Although not shown in the figure, the first to third plate portions 11 to 13 may be U-shaped as viewed from the side, or may have other shapes, and sandwich the building member as a clip. If it is.

  In the present embodiment, one side edge and the other side edge of the notch 14 extend in parallel. Further, the width dimension of the notch 14 is smaller than the diameter of the thread of the male screw formed on the shaft part S of the bolt B, and larger than the diameter of the thread groove of the male screw on the outer peripheral surface of the shaft part S. For this reason, there is no possibility that the shaft portion S engages with the notch 14 and the bolt B falls. The head of the bolt B can be brought into contact with or close to the lower surface of the building member I.

  Furthermore, the fixing clip 10 includes a pair of wall portions 15 that rise from both side edges of the second plate portion 12 and protrude toward the first plate portion 11. The wall portion 15 of the present embodiment extends from the base end edge 12s of the second plate portion 12 to the front end edge 12t. The pair of wall portions 15 are flat plates having a constant thickness that are substantially parallel to each other, as indicated by broken lines in FIG. A pair of wall part 15 receives the head H of the volt | bolt B, as shown to FIG. 7 and FIG. And two parallel sides of the head H face each other with a pair of wall portions 15 through a slight gap. Accordingly, the pair of wall portions 15 prevent the head portion of the bolt from rotating. Therefore, the bolt can be easily temporarily fixed to a building member such as a column member or a beam member, and a complicated operation is not required.

  The pair of wall portions 15 are substantially parallel to each other. However, as indicated by a broken line in FIG. 7, the distance on the distal end side may be slightly larger than the distance on the proximal end side. In this case, even if the distance between the two parallel sides of the head H is different for each bolt B, the head H can be prevented from rotating.

  The second plate portion 12 extends obliquely so as to approach the first plate portion 11 toward the distal end edge 12 t from the base end edge 12 s and constitutes a leaf spring that elastically deforms with respect to the third plate portion 13. In the original fixed clip 10, the distance between the tip edge 12t and the first plate portion 11 is formed smaller than the thickness t1 shown in FIG. Therefore, the fixing clip 10 can be elastically deformed so that the distance between the first plate portion 11 and the second plate portion 12 is increased, and the building member I shown in FIG. In addition to being able to sandwich the edge of the horizontal structural member I, the fixing clip 10 can sandwich the edge of a vertical structural member or an inclined structural member by the action of elastic deformation.

  The second plate portion 12 extends obliquely so as to approach the first plate portion 11 as it goes from the base end edge 12s to the distal end edge 12t. Then, the portion including the base end edge 12s is elastically deformed, and the second plate portion 12 is rotatable in a direction away from the first plate portion 11. Thereby, as shown to Fig.8 (a)-(e), the fixing clip 10 can pinch | interpose the building member I of various thickness. That is, since the second plate portion 12 extends with an inclination when viewed from the side of the fixing clip 10, the distance between the leading edge 12 t of the second plate portion 12 and the first plate portion 11 is set narrow. Therefore, even when the thickness of the building member I is small, the edge of the building member I can be sandwiched between the first and second plate portions 11 and 12 as shown in FIGS. . Further, even when the thickness of the building member I is large, it is elastically deformed so that the distance between the first plate portion 11 and the second plate portion 12 is increased, and as shown in FIGS. The edge of the building member I can be sandwiched between the first and second plate portions 11 and 12. At this time, the upper edge of the wall portion 15 comes into contact with the lower surface of the building member I. Further, the lower surface of the first plate portion 11 contacts the upper surface of the building member I.

  As shown in FIGS. 3 and 4, the rising height from the side edge of the second plate portion 12 to the upper edge of the wall portion 15 increases as it goes from the leading edge 12 t to the base edge 12 s of the second plate portion 12. It is formed to bulge out in an arc shape so as to be lowered from the middle. That is, the upper edge of the wall portion 15 is an arc having a radius R centered on a point below the second plate portion 12 as indicated by an arrow in FIG. As a result, as shown in FIGS. 8A to 8E, even if the second plate portion 12 rotates downward about the base end edge 12s, the front end edge 12t and the base end edge of the second plate portion 12 The central region of the pair of wall portions 15 positioned between 12 s contacts the lower surface of the building member I. Therefore, the central region of the wall portion 15 located between the front end edge 12t and the base end edge 12s always faces two parallel sides of the head H, so that the bolt B can be reliably prevented from rotating.

  The fixing clip 10 of the present embodiment further includes an enlarged wall portion 16 attached to each wall portion 15. Each of the enlarged wall portions 16 extends from the edge portion on the distal end side of the second plate portion 12 of the pair of wall portions 15 and extends in a direction away from the third plate portion 13. Make a pair so that the interval becomes large. Thereby, when the head H approaches from the front end side of the second plate portion 12, the pair of enlarged wall portions 16 captures the head H and sends the head H between the pair of wall portions 15. Therefore, according to this embodiment, the head H can be easily installed between the pair of wall portions 15.

  As shown in FIGS. 3 and 4, the upper edge of each enlarged wall portion 16 is continuous with the upper edge of each wall portion 15, and constitutes an arcuate edge common to the enlarged wall portion 16 and the wall portion 15. To do. Thus, the rising height of the enlarged wall portion 16 is reduced toward the distal end side. Thus, even when the thickness of the building member I is particularly small as shown in FIG. 8A, each enlarged wall portion 16 does not contact the lower surface of the building member I, and the central region of the wall portion 15 is the building. It contacts the lower surface of the member I. Then, facing the two parallel sides of the head H, the rotation of the head H can be reliably regulated.

  The fixing clip 10 can sandwich the edge of the building member I having various thicknesses such as thicknesses t1 to t5. If it adds here, the space | interval with the 1st plate part 11 will become small, so that the 2nd plate part 12 goes to the front-end edge 12t. For this reason, when the fixing clip 10 is inserted into the building member I having a small thickness t1, there is a concern that the front end side opening defined by the pair of wall portions 5, the lower surface of the building member I, and the front end edge 12t may be reduced. However, according to the present embodiment, as shown in FIG. 5, each enlarged wall portion 16 is connected to the wall portion 15, but not connected to the second plate portion 12. Thereby, even if it has the enlarged wall part 16, it can avoid that a front end side opening becomes small, and can make the head H easy to receive.

  The fixing clip 10 is formed by punching a flat steel plate having a constant thickness and bending it at each location. Therefore, the first to third plate portions 11 to 13, the pair of wall portions 15, and the pair of enlarged wall portions 16 are flat plates each having a constant thickness, and can be elastically deformed like a plate spring.

  Next, a modification of the present invention will be described. FIG. 9 is a side view showing a fixing clip according to a modification of the present invention, and shows a use state. In the modification, the same components as those in the above-described embodiment are denoted by the same reference numerals, the description thereof is omitted, and different configurations will be described below. The fixing clip 20 of the modified example is attached to the building member I as shown in FIG. However, in the original shape of the fixed clip 20, the distance between the upper edge of the wall portion 15 and the first plate portion 11 is larger than the thickness t6 of the building member I. For this reason, the fixing clip 20 does not sandwich the building member I. Even in the case of such a modification, since the first plate portion 11 is supported by the building member I, it is possible to avoid the fixing clip 20 from falling off.

  In addition, although not shown, when the width dimension of the notch 14 of the fixing clips 10 and 20 is larger than the diameter of the thread of the male screw formed on the outer peripheral surface of the shaft portion S, the shaft portion S of the bolt B is used. And the notches 14 of the fixing clips 10 and 20 do not engage with each other. Even in this case, the head H can be supported by the second plate portion 12. Moreover, the rotation of the head H can be prevented by the pair of wall portions 15.

  Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The fastening clip according to the invention is advantageously used in steel structures.

  DESCRIPTION OF SYMBOLS 10 Fixed clip, 11 1st plate part, 12 2nd plate part, 13 3rd plate part, 14 Notch, 15 A pair of wall part, 16 A pair of enlarged wall part, 20 Fixed clip.

Claims (6)

A first plate portion and a second plate portion facing each other with a gap therebetween;
A third plate portion connecting the base edges of the first and second plate portions;
A notch that is formed in the first plate portion and is notched from the leading edge of the first plate portion toward the third plate portion and passed through the shaft portion of the bolt;
A pair of wall portions that rise from both side edges of the second plate portion and project toward the first plate portion to stop the bolt heads from rotating ;
Extending in a direction away from the tip edge of the second plate portion, extending to the edge portion of the wall portion farther from the third plate portion and extending from the tip edge of the second plate portion, the tip side of the first and second plate portions A fixing clip comprising: an enlarged wall portion that receives a head portion of the bolt that enters between the pair of wall portions .   2. The fixing clip according to claim 1, wherein the second plate portion is a leaf spring extending obliquely so as to approach the first plate portion from the proximal end side toward the distal end side.   The fixing clip according to claim 2, wherein the rising height of the pair of wall portions is formed in an arc shape so as to increase from the distal end side to the proximal end side of the second plate portion and to decrease from the middle.   2. The fixing according to claim 1, further comprising biasing means provided on the second plate portion and biasing a head portion of a bolt disposed between the pair of wall portions toward the first plate portion. clip.   The said notch is formed so that it may be smaller than the diameter in the thread of the external thread formed in the axial part of the said bolt, and may have a width dimension larger than the diameter in the thread groove of the said external thread. Fixed clip according to crab. The said expansion wall part is respectively extended in said pair of wall part , and makes a pair, The space | interval of said pair of expansion wall part becomes large, so that it leaves | separates from said 2nd plate part. Fixed clip as described.

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