JP6085271B2 - Fixture - Google Patents

Description

  The present invention relates to a fixing hardware or a fixture for mounting and fixing a floor panel to a joist, a large pull, or a beam.

  Conventionally, as a fixing hardware for mounting and fixing a floor panel to a beam or a beam in a building, for example, one described in JP 2011-133077 A (Patent Document 1) is known. The fixed hardware described in Patent Literature 1 has a bolt extending in the vertical direction with the head portion on the upper side and the shaft portion on the lower side, and a hole through which the shaft portion of the bolt penetrates. A panel abutting plate that abuts, a body fitting that is screwed with a male screw of a bolt shaft portion and extends downward from the bolt, and a hook that is rotatably attached to a lower end portion of the body fitting. The hook can be selectively rotated between a storage position extending along the main body and a protruding position protruding in a direction perpendicular to the main body.

  When the floor panel is fixed to the H-shaped steel beam, the operator passes the fixing metal downward through the fixing through hole provided in the floor panel and causes the hook to protrude to the protruding position. When the operator tightens and rotates the bolt in this state, the floor panel and the H-shaped steel flange are sandwiched between the panel contact plate of the fixed hardware and the hook, and the floor panel becomes immovable by the beam. It is fixed.

  The female thread part on the side of the main body fitting screwed into the male screw of the bolt shaft part is a general hex nut, and a nut mounting hole for receiving the hex nut is formed at the upper end part of the main body fitting. The nut mounting hole penetrates in the transverse direction of the body fitting so as to be orthogonal to the vertical direction of the body fitting. The opening dimension of the nut mounting hole in the vertical direction is wider than the thickness of the hexagon nut. By inserting the hexagon nut into the nut mounting hole from the side of the body bracket, the hex nut is held by the body bracket. The vertical direction is restricted.

Paragraph 0096 FIGS. 8 to 10

  However, the conventional fixed hardware has the following points to be improved as described below. First, the hexagonal nut is not sufficiently locked against the bolt. That is, if the hex nut is slightly deviated from the nut mounting hole of the main body metal fitting, the hex nut rotates together when the bolt is tightened and rotated. In order to prevent such co-rotation, as shown in FIG. 9 of Patent Document 1, the cross-sectional shape of the main body fitting closely matches the hole shape of the fixing through hole of the floor panel, and the main body fitting is the center of the fixing through hole. Must be positioned so as to be eccentric. That is, the main body metal fitting can be used only for fixing through holes with specific diameters, and cannot be used for fixing through holes with other diameters. Furthermore, the hexagon nut must be properly positioned in the nut mounting hole of the main body metal fitting, and there was a severe restriction that the hexagon nut should not be larger or smaller than the nut mounting hole.

  Secondly, the tensile strength of the metal shell was insufficient. That is, when the cross-sectional area of the horizontal cross section of the main body metal fitting extending in the vertical direction is observed at the part where the nut mounting hole is formed and the other part, the most part is notched at the part where the nut mounting hole is formed. As a result, the cross-sectional area of the main body metal fitting becomes small. For this reason, after the bolts are tightened and rotated and the floor panel is fixed to the beam so as to be immovable, the bolts must be accommodated with a small cross-sectional area, and there is room for improvement in the tensile strength of the main bracket. It was.

  In view of the above circumstances, an object of the present invention is to provide a fixture that can reliably prevent the rotation of a nut and ensure sufficient tensile strength.

For this purpose, a fixing device according to the first aspect of the present invention is a main body wall portion including a bolt having a head portion and a shaft portion and a pair of side walls extending along the shaft portion. A body having an opening facing the shaft end, a first end portion closer to the head than the pair of side walls and having a through hole through which the shaft portion is passed, and a central hole through which the shaft portion is passed A first fixing member whose axial movement is restricted between the first part and the main body and a pair of side walls disposed between the first fixing member and the side walls, and being locked to the side walls and screwed into the first shaft part to exit the first end of the main body The nut to stop and the 2nd fixing member provided in the 2nd end of a main body far from a head among main bodies are provided. The main body further has a protruding portion that is disposed at an end portion closer to the head of both longitudinal end portions of the main body wall portion and protrudes between the pair of side walls, and the nut is provided at the first end of the main body by the protruding portion. Movement in the direction away from the part is restricted. And a fixing tool can pinch a fixed object between the 1st fixing member and the 2nd fixing member.

  According to the first aspect of the invention, the nut disposed between the pair of side walls is prevented from rotating by the side walls, so that the nuts can be prevented from rotating together. Moreover, since the nut is disposed between the pair of side walls, it is not necessary to provide a nut mounting hole so as to cut out most of the main body as in the conventional case. Therefore, the cross-sectional area that appears when the main body is cut along a plane perpendicular to the longitudinal direction is not reduced, and the tensile strength of the main body can be ensured. The fixed object is, for example, a thing in which a floor panel and a joist are overlapped, a thing in which a floor panel and an overdraw are overlapped, or a thing in which a floor panel and a beam are overlapped.

  According to the first aspect of the invention, since the main body of the fixture has an opening formed in the main body wall portion and faces the shaft end of the bolt shaft portion, the bolt shaft portion passes from the outside of the fixture to the shaft portion of the bolt. It becomes possible to access. Therefore, by tightening and rotating the bolt head, the nut is moved to the head side, the tool is inserted into the opening from the outside of the fixture, and the male screw is crushed so that the nut cannot be removed from the bolt shaft. . As a result, even if the operator accidentally loosens the bolt and rotates it to the maximum, the nut stays on the bolt shaft and can prevent the main body from falling off. In the conventional fixed hardware, if the operator accidentally loosens the bolt to the maximum while rotating the floor panel using the fixed hardware and rotates it, the main body metal part would fall off with the nut. . In particular, for the worker on the floor panel, if the main body metal part falls out of the fixing through hole and below the floor panel, the main body metal part can no longer be recovered. According to the first invention, such a problem does not occur.

  With the nut screwed into the bolt shaft, the first end of the main body can move between the bolt head and the nut. Then, when the nut is screwed in the vicinity of the bolt shaft end, as shown in FIG. 14, the main body 31 is tilted with the upper end wall portion 32 corresponding to the first end as a fulcrum with the bolt shaft portion 13 as a reference. Therefore, there is a concern that the shaft end 15 of the bolt and the nut 61 may be separated from between the pair of side walls 33. If it does so, it will become impossible to fulfill a co-rotation preventing function. According to the first invention, the main body further has a protruding portion that is disposed at an end portion closer to the head of the both longitudinal ends of the main body wall portion and protrudes between the pair of side walls, and the nut is the protruding portion. The movement in the direction away from the first end of the main body is restricted by the portion. According to this 1st invention, a main body has a protrusion part which protrudes between a pair of side walls. And a protrusion part is provided in the edge part close | similar to a bolt head among the longitudinal direction both ends of a main body wall part, and controls an axial direction movement so that a nut may not leave | separate from the 1st end part of a main body. As a result, the nut is always kept unrotatable while being located between the pair of side walls. The protrusion may be provided at any part of the main body wall. For example, the protrusion is provided on the side wall. Or a protrusion part is provided in another wall. The number and shape of the protrusions are not particularly limited.

  Further, the opening and the protrusion of the first invention are formed by cutting and raising the main body wall. According to this 1st invention, an opening and a protrusion part can be simultaneously provided in a main body wall part by cutting up a main body wall part. In addition, cutting up means cutting off a part of the main body wall and raising the cut portion between a pair of side walls. By cutting a part of the main body wall portion, the original shape of the protruding portion appears, and by bending the original shape of the protruding portion between the pair of side walls, a part of the main body wall portion becomes an opening. At this time, the protruding portion may be slightly smaller than the opening or may be much smaller.

  The position and number of the openings are not particularly limited, but it is preferable that the openings are small in order to secure the cross-sectional area of the main body. As one embodiment of the first invention, the openings are respectively provided in the pair of side walls, and the pair of openings face each other. According to this embodiment, the tool can be inserted into the openings facing each other from the outside of the fixture, and the male screw at the end of the bolt shaft can be crushed. Also, the opening area can be made smaller by providing two openings than when providing one opening.

For the above-described purpose, the fixture according to the reference example includes a main body wall portion including a bolt having a head portion and a shaft portion, a pair of side walls extending along the shaft portion, and both longitudinal ends of the main body wall portion. Of these, it is arranged at the end portion closer to the head, and is formed at the first end portion that is closer to the head than the pair of side walls and the protruding portion that protrudes between the pair of side walls, and the shaft portion is passed therethrough. A main body having a through hole, a first fixing member having a central hole through which the shaft portion is passed and having axial movement restricted between the head and the main body, and a pair of side walls disposed around the side walls. A nut that is stopped and restricted from axial movement in a direction away from the first end of the main body by the protruding portion, and that is screwed into the shaft portion to prevent the first end of the main body from coming off; A second fixing member provided at a second end of the distant main body. And a fixing tool can pinch a fixed object between the 1st fixing member and the 2nd fixing member.

Also by such reference example, similarly to the first invention, since the nut is disposed between a pair of side walls are detent by the side wall, it is possible to prevent the corotation of the nut. Moreover, since the nut is disposed between the pair of side walls, it is not necessary to provide a nut mounting hole so as to cut out most of the main body as in the conventional case. Therefore, the cross-sectional area that appears when the main body is cut along a plane perpendicular to the longitudinal direction is not reduced, and the tensile strength of the main body can be ensured.

Further, according to the reference example , the main body has a protruding portion protruding between the pair of side walls. And a protrusion part is provided in the edge part close | similar to a bolt head among the longitudinal direction both ends of a main body wall part, and a movement control is carried out so that a nut may not leave | separate from the 1st end part of a main body. As a result, the nut is always kept unrotatable while being located between the pair of side walls. In addition, when it does not have a protrusion part, a nut becomes movable along the longitudinal direction of a main body, screwing in a bolt axial part. Then, as shown in FIG. 14, the main body 31 tilts with the upper end wall portion 32 corresponding to the first end portion as a fulcrum, and the bolt shaft end 15 and the nut 61 are separated from the pair of side walls. If it does so, it will become impossible to fulfill a co-rotation preventing function. According to the reference example , the rotation of the nut 61 can always be prevented.

For the above-described purpose, the fixture according to the second invention includes a bolt having a head and a shaft portion, a pair of side walls extending along the shaft portion, and a pair of side walls extending along the shaft portion. A front wall and a rear wall surrounding the shaft portion, a main body having a through hole formed in a first end portion closer to the head than the pair of side walls and passing the shaft portion, and a center through which the shaft portion is passed A first fixing member having a hole and restricted in axial movement between the head and the main body, and held between the front wall, the rear wall, and the pair of side walls, and is prevented from rotating around the pair of side walls; And a second fixing member provided at the second end of the main body, which is far from the head of the main body, and is fixed to the first object. It is possible to pinch between the member and the second fixing member.

According to the second invention as well, as with the first invention, the nut held between the pair of side walls is prevented from rotating by the side walls, so that the nuts can be prevented from rotating together. Moreover, since the nut is disposed between the pair of side walls, it is not necessary to provide a nut mounting hole so as to cut out most of the main body as in the conventional case. Therefore, the cross-sectional area that appears when the main body is cut along a plane perpendicular to the longitudinal direction is not reduced, and the tensile strength of the main body can be ensured.

According to the second invention, the main body has the front wall and the rear wall. The front wall and the rear wall surround the shaft portion together with the pair of side walls. As a result, the nut is restricted to move together with the bolt shaft portion so as not to be separated from the main body, and is always unable to rotate together while being positioned between the pair of side walls. In addition, when it does not have a protrusion part, a nut becomes movable along the longitudinal direction of a main body, screwing in a bolt axial part. Then, as shown in FIG. 14, the main body 31 tilts with the upper end wall portion 32 corresponding to the first end portion as a fulcrum, and the bolt shaft end 15 and the nut 61 are separated from the pair of side walls. If it does so, it will become impossible to fulfill a co-rotation preventing function. According to the second invention, it is possible to always prevent the nut 61 from rotating together.

  As a preferred embodiment, the male screw portion at the shaft end portion of the male screw formed on the shaft portion of the bolt may be crushed. According to such an embodiment, the nut is prevented from coming off from the bolt shaft portion. As a result, even if the operator accidentally loosens the bolt and rotates it to the maximum, the nut stays on the bolt shaft and can prevent the main body from falling off.

  The first fixing member described so far only needs to be restricted in axial movement between the head of the bolt and the main body, and when the object to be fixed is clamped in cooperation with the second fixing member, the head of the bolt It is pressed indirectly or directly from the part. At this time, the first fixing member may be in contact with the main body or may be separated from the main body.

  The second fixing member described so far has various embodiments, and may be non-movable fixed to the main body so as not to be displaced, or may be movable. As one embodiment, the second fixing member is attached to the second end far from the head among the longitudinal ends of the pair of side walls, and is stored between the pair of side walls. It is a movable member that is selectively set to a projecting position that projects in the lateral direction from between the side walls. And a fixing tool can pinch between the 2nd fixing member and the 1st fixing member which made the fixing target object the protrusion position.

Thus, according to the 1st invention and the 2nd invention, co-rotation of a nut can be prevented reliably and sufficient tensile strength can be secured. Further, according to the first invention, it is possible to prevent the main body from falling off. Further, according to the second invention, it is possible to always prevent the nut from rotating together.

It is a side view which shows the fixing tool which becomes one Embodiment of this invention. It is a front view which shows the same embodiment. It is a longitudinal cross-sectional view which shows the same embodiment. It is a front view which takes out and shows the main body of the embodiment. It is a top view which takes out and shows the plate of the embodiment. It is a top view which takes out and shows the rotation stopper of the embodiment. It is a cross-sectional view which shows a rotation stopper. It is a top view which takes out and shows the main body of the embodiment. It is a cross-sectional view which shows the main body of the embodiment. It is explanatory drawing which shows the fixing tool of use condition. It is explanatory drawing which shows the fixing operation | work of a floor panel. It is a longitudinal cross-sectional view which shows the fixing tool which becomes other embodiment of this invention. It is a cross-sectional view which shows other embodiment. It is a side view which shows the fixing tool of a comparative example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view showing a fixture according to an embodiment of the present invention, in which a hook storage position is indicated by a solid line, and a protruding position is indicated by an imaginary line. FIG. 2 is a front view showing the embodiment. FIG. 3 is a longitudinal sectional view showing the embodiment. FIG. 4 is a front view showing the main body of the same embodiment. FIG. 5 is a plan view showing the plate of the same embodiment. FIG. 6 is a plan view showing the rotation stopper in the same embodiment. FIG. 7 is a cross-sectional view showing the rotation stopper. FIG. 8 is a plan view showing the main body extracted from the embodiment. FIG. 9 is a cross-sectional view showing the main body and the hook of the embodiment. In the following description, for the sake of convenience, the upper side of the paper in FIGS. 1 to 4 is referred to as the upper side of the fixture, and the lower side of the paper is referred to as the lower side of the fixture. 1 and 3 is referred to as the front of the fixture, and the right side of the paper is referred to as the rear of the fixture. 5 to 9 is referred to as the front of the fixture, and the upper side of the paper is referred to as the rear of the fixture. 2, 4, and 5 to 9 are referred to as the width direction of the fixture.

  The fixture 10 includes a bolt 11, a plate 21, a main body 31, a hook 41, a rotation stopper 51, and a nut 61, and has an elongated shape extending in the vertical direction. The material of the fixture 10 is not particularly limited, but when it is formed of a metal such as stainless steel, it is also referred to as a fixture. The bolt 11 has a head portion 12 disposed on the upper side and a shaft portion 13 disposed on the lower side. The head 12 may be any shape that can be tightened and rotated. For example, a cross groove for receiving a cross screwdriver is formed at the top of the head of the circular head. Alternatively, the head 12 may be a regular hexagon or another polygon. The bolt 11 is a commercial product, and a male screw 13 m is formed on the outer periphery of the shaft portion 13. A nut 61, which will be described later, is screwed to the shaft portion 13, and a screwing portion 14 is formed at the bolt shaft end that is the lower end of the bolt 11 in this state. Specifically, the male screw 13m portion at the end of the bolt shaft is crushed by the method described later. Thus, even if the bolt 11 is loosened and rotated to the maximum extent, the nut 61 does not fall out of the bolt 11.

  The plate 21 is a flat metal plate, and has a center hole 22 through which the shaft portion 13 of the bolt 11 passes. The outline of the center hole 22 includes a semicircular circular peripheral edge 22a and a rectangular edge 22b formed so as to cut out a part of the rear side of the circular peripheral edge 22a. The circumferential edge 22a is disposed at the center of the plate 21, and the shaft 13 of the bolt 11 is passed through. The inner diameter of the circular peripheral edge 22 a is larger than the outer diameter of the shaft portion 13, and the bolt 11 can move in the vertical direction with respect to the plate 21. The rectangular edge 22b is disposed at the rear portion of the plate 21, and a detent 51, which will be described later, is passed therethrough. The rectangular edge 22b that becomes the rear portion of the center hole 22 is formed wider than the circular peripheral edge 22a that becomes the front portion of the center hole 22. Since the dimension in the width direction of the center hole 22 is smaller than the cross-sectional shape of the head 12, the upward movement of the plate 21 is restricted by the head 12. Downward claws 23 are provided on both sides of the plate 21. The pair of claws 23 are formed by bending downward plate portions that extend further laterally from both sides of the plate 21. The outer edge of the plate 21 is formed in a substantially square shape, and a triangular notch 25 is provided at the front.

  The main body 31 is a single metal member extending in the vertical direction, and has an upper end wall portion 32, a first side wall portion 33, a second side wall portion 34, a first rear wall portion 35, and a second rear wall portion 36. . All of these wall portions may have a constant thickness, and the main body 31 can be manufactured by bending a single plate material extending continuously. In this case, one end portion of the plate material is made the first side wall portion 33 and the first rear wall portion 35, and the other end portion of the plate material is made the second side wall portion 34 and the second rear wall portion 36, and the center of the plate material is made. The part is made the upper end wall part 32. That is, the plate material is bent into a U-shape, and the first side wall portion 33, the upper end wall portion 32, and the second side wall portion 34 form a U-shape opened downward as shown in FIG. The upper end wall portion 32 connects the first side wall portion 33 and the second side wall portion 34 to each other. Further, the first rear wall portion 35, the first side wall portion 33, the upper end wall portion 32, the second side wall portion 34, and the second rear wall portion 36 continuously extend in this order, and adjacent wall portions are adjacent to each other. Are connected at a substantially right angle. Since the main body 31 is elongated and extends in the vertical direction along the shaft portion 13 of the bolt 11, the vertical direction is also referred to as an axial direction or a longitudinal direction in the following description. A direction perpendicular to the longitudinal direction is also referred to as a short direction.

  As shown in FIG. 2, a pair of side wall portions 33, 34 extending in the vertical direction along the shaft portion 13 and rear wall portions 35, 36 arranged between the pair of side wall portions 33, 34 are collectively assembled. This is called a wall. The upper end wall part 32 of the longitudinal direction both ends of the main body 31 is closer to the head 12 than the pair of side wall parts 33 and 34. For this reason, the upper end wall portion 32 is also referred to as a first end portion of the main body 31.

  The upper end wall portion 32 is a plate having a constant thickness and has a hole 32h through which the shaft portion 13 of the bolt 11 passes. The inner diameter of the hole 32 h is larger than the outer diameter of the shaft portion 13, and the bolt 11 can move in the vertical direction with respect to the upper end wall portion 32. The upper end wall portion 32 is disposed below the plate 21. Further, the upper end wall portion 32 is larger than the nut 61 and covers almost the entire upper end surface of the nut 61. The first side wall portion 33 is a long plate having a constant thickness extending downward from one side in the width direction of the upper end wall portion. The second side wall portion 34 is a long plate having a constant thickness extending downward from the other side in the width direction of the upper end wall portion, and between the first surface and the second surface that are parallel to each other on the outer periphery of the regular hexagonal nut 61. The first side wall portion 33 is opposed to the first side wall portion 33 with an interval larger than the radial dimension. That is, the first side wall 33 and the second side wall 34 extend in parallel to each other. Through holes are respectively formed in the lower end portions of the first side wall portion 33 and the second side wall portion 34, and a shaft body 40 extending in the width direction is inserted through the through holes. Note that the lower end portions of the first side wall portion 33 and the second side wall portion 34 are end portions farther from the head 12 out of both longitudinal ends of the pair of side wall portions 33 and 34, and the second end of the main body 31. Also referred to as part.

  As shown in FIG. 1, a substantially rectangular opening 34 q is formed in the second side wall portion 34. The second side wall 34 is left as a columnar portion extending in the vertical direction at the front edge and the rear edge of the opening 34q. A projecting portion 34p is provided by cutting and raising a portion of the main body wall portion closer to the head 12 than the opening 34q, that is, the upper edge of the opening 34q. That is, by cutting a part of the second side wall portion 34, the original shape of the protruding portion 34p appears, and the original shape of the protruding portion 34p is bent toward the first side wall portion 33 to form the opening 34q. . The protruding part 34p is a claw integrally formed with the second side wall part 34, and protrudes between the pair of side wall parts 33, 34 with the second side wall part 34 as a root.

  Similarly, the first side wall 33 is provided with an opening 33q (FIG. 3) and a protrusion 33p (FIG. 2). The protruding portion 33p of the first side wall portion 33 and the protruding portion 34p of the second side wall portion 34 protrude so as to approach each other. The shaft portion 13 penetrates between the pair of projecting portions 33p and the projecting portions 34p. The opening 33q adjacent to the protruding portion 33p and the opening 34q adjacent to the protruding portion 34p face each other to form a space that penetrates the main body 31 in the width direction. The openings 33q and 34q face the shaft portion 13 of the bolt 11. Then, by loosening and rotating the bolt 11, the openings 33 q and 34 q face the screwing portion 14 formed at the shaft end of the bolt 11.

  In this case, the screwing portion 14 sequentially passes the rotation stopper 51, the plate 21, and the main body 31 through the shaft portion 13 of the bolt 11, and further screwed the nut 61 to make a pair of openings 33q, It is created by inserting a tool from the outside into 34q, compressing the shaft end of the shaft portion 13 with a pair of tools, compressing and deforming the shaft end of the shaft portion 13 and crushing a part of the male screw 13m. .

  Alternatively, by inserting two tools from the outside into any one of the plurality of openings described above and compressing the shaft end of the shaft portion 13 with these tools, the shaft end of the shaft portion 13 is compressed and deformed. Then, the screwing portion 14 is created by crushing the shaft end portion of the male screw 13m. Alternatively, a wedge is inserted between the first side wall 33 and the shaft end of the shaft portion 13 from the front of the main body 31, and a tool is inserted into the opening 34q from the outside so that the shaft end of the shaft portion 13 does not escape with the wedge. The screwing portion 14 is created by hitting or compressing the shaft end of the shaft portion 13 with a tool and compressing and deforming the shaft end of the shaft portion 13 to crush a part of the male screw 13m. Or the screwing part 14 may be created by the other method which is not demonstrated here.

  The first rear wall portion 35 protrudes from the rear edge of the first side wall portion 33 toward the second side wall portion 34 and extends in the vertical direction. The second rear wall portion 36 projects from the rear edge of the second side wall portion 34 toward the first side wall portion 33 and extends in the vertical direction. The first side wall 33 and the first rear wall 35, and the second side wall 34 and the second rear wall 36 are symmetrical with respect to a virtual plane perpendicular to the width direction of the fixture 10.

  As shown in FIG. 4, the projecting dimension of the first rear wall portion 35 projecting from the first side wall portion 33 is such that the upper end portion 35a and the lower end portion 35c are larger than the vertical intermediate portion 35b. The protruding dimension of the second rear wall portion 36 protruding from the second side wall portion 34 is also formed in the same manner as the first rear wall portion 35. The gap between the protruding edge of the first rear wall portion 35 and the protruding edge of the second rear wall portion 36 that is symmetric in the width direction is not constant, and the gap B in the vertical middle portions 35b, 36b is the upper end portion 35a, It is formed larger than the gap A in 36a.

  The gap B in the vertical middle portions 35b and 36b is formed larger than the gap C in the lower end portions 35c and 36c. Therefore, a long hole 38 extending in the vertical direction is formed between the upper end portions 35a and 36a and the lower end portions 35c and 36c.

  A lower end portion 35 c of the first rear wall portion 35 is disposed above the lower end of the first side wall portion 33, and a lower end portion 36 c of the second rear wall portion 36 is disposed above the lower end of the second side wall portion 34. . As a result, a lower opening 39 opened in the front-rear direction is formed between the first sidewall portion 33 and the second sidewall portion 34 below the lower end portions 35c and 36c. The lower opening 39 is at the same height as the shaft body 40 and receives the proximal end 42 of the hook 41.

  The hook 41 has a base end 42 and a free end 43, and is a metal member having a substantially U-shaped cross section as shown in FIG. The hook 41 has a U-shaped metal fitting 44 extending from the base end 42 to the free end 43 and a rubber cushioning material 45 attached to the free end 43 side. The metal fitting 44 has a pair of side pieces 44a and 44b facing each other and a bottom piece 44c for joining the side pieces 44a and 44b. A block-shaped cushioning material 45 is inserted between the pair of side pieces 44a and 44b. A part of the cushioning material 45 protrudes beyond the edge of the metal fitting 44 to the side opposite to the bottom piece 44c.

  The hook 41 is pivotally supported on the shaft body 40 on the base end 42 side, and the free end 43 side is rotatable around the shaft body 40. 2, 3, and 9, the hook 41 is stored between the first side wall 33 and the second side wall 34, as shown by a phantom line in FIG. 1. The first side wall portion 33 and the second side wall portion 34 are selectively set to projecting positions that project forward at right angles to the vertical direction. The hook 41 in the storage position has the base end 42 on the lower side and the free end 43 on the upper side, and extends along the longitudinal direction of the main body 31, that is, the vertical direction. Further, the hook 41 can fall from the storage position to the protruding position by its own weight.

  The hook 41 in the protruding position extends in the short direction of the main body 31, that is, in the front-rear direction, with the free end 43 forward and the base end 42 rearward. However, the hook 41 does not project in a direction perpendicular to the main body 31 at the projecting position, but projects slightly upward. The protrusion angle of the hook 41 is a value included in the range of 80 to 89 degrees with respect to the vertical direction. When the free end 43 rotates downward and moves from the storage position to the projecting position, the base end 42 positioned rearward of the shaft body 40 rotates upward and enters the lower opening 39, and the first rear The lower end portion 35c of the wall portion 35 and the lower end portion 36c of the second rear wall portion 36 abut. As a result, the hook 41 is restricted from rotating further downward than the protruding position. Therefore, the hook 41 does not rotate downward from the main body 31.

  With the plate 21 described above as the first fixing member and the hook 41 at the protruding position as the second fixing member, the fixture 10 fixes the object to be fixed as described later.

  The rotation stopper 51 is a long plate-like metal fitting extending in the vertical direction, and the upper end portion 52 and the lower end portion 53 are bent at a substantially right angle toward the front with respect to the long portion 54 extending in the vertical direction. The The lower end 53 protruding forward from the long portion 54 is formed to have a wide tip end side and a narrow base side connected to the long portion 54 as in a T shape (FIG. 7). The T-shaped lower end 53 is passed through a long hole 38 (FIG. 4) provided on the rear side of the main body 31 to engage with the first rear wall 35 and the second rear wall 36, It can be moved in the vertical direction along the long hole 38 while being prevented from coming out. Note that the vertical movement of the lower end 53 is limited between the upper end portions 35a and 36a and the lower end portions 35c and 36c. Further, the lower end portion 53 engages with the main body 31 so as not to move in the front-rear direction.

  The elongated portion 54 extends along the rear portion of the main body 31 and passes through the rectangular edge 22b (FIG. 5) at the rear portion of the plate 21. The rectangular edge 22 b of the center hole 22 is formed wider than the long portion 54, but the circumferential edge of the center hole 22 is formed narrower than the long portion 54. Thereby, the elongate part 54 is hold | maintained so that it may not remove | deviate from the rectangular edge 22b. Note that the shape of the rectangular edge 22 b of the center hole 22 is larger than the cross-sectional shape of the long portion 54, and the rotation stopper 51 can move in the vertical direction with respect to the plate 21.

  In this manner, the rotation stopper 51 engages the rectangular edge 22b at the rear part of the plate 21 and the long hole 38 at the rear part of the main body 31 so that the hook 41 provided on the main body 31 is attached to the plate regardless of the rotation of the bolt 11. It is directed in the same direction as the notch 25 of 21, that is, forward.

  As shown in FIG. 6, a hole 52 h through which the shaft portion 13 of the bolt 11 is passed is formed in the upper end portion 52 of the rotation stopper 51. The upper end portion 52 through which the shaft portion 13 of the bolt 11 is passed is disposed between the head portion 12 and the plate 21. Since the hole 52 h has a smaller diameter than the head 12, the hole 52 h does not pass over the bolt 11 beyond the head 12. The inner diameter of the hole 52 h is larger than the outer diameter of the shaft portion 13, and the bolt 11 can move in the vertical direction with respect to the rotation stopper 51. In addition, below the head 12, an upper end 52, a plate 21, an upper end wall 32 serving as an upper end of the main body 31, and a hexagonal nut 61 are sequentially arranged from the top to the bottom. Is done. The shaft portion 13 is screwed into the nut 61 to hold the upper end portion 52, the plate 21, and the upper end wall portion 32 between the head 12 and the nut 61. Although not shown, a spring washer may be interposed between the head 12 and the upper end 52.

  The nut 61 is a commercially available hex nut having a female screw hole in the center, and six flat surfaces (regular hexagons) are formed on the outer periphery at equal intervals in the circumferential direction of 60 °. The nut 61 is screwed into the shaft portion 13 of the bolt 11 to restrict the downward movement of the upper end wall portion 32 of the main body 31 and the plate 21. Further, the nut 61 is accommodated between the first side wall 33 and the second side wall 34 of the main body 31. At this time, the first and second surfaces parallel to each other among the six flat surfaces of the outer periphery of the regular hexagon of the nut 61 come into contact with the first side wall portion 33 and the second side wall portion 34, respectively. As a result, the nut 61 is held by the main body 31 so as not to be relatively rotatable and to be movable in the vertical direction. Further, the upper end surface of the nut 61 contacts the lower surface of the upper end wall portion 32 in a state where the nut 61 is screwed to the shaft portion 13. Thereby, the nut 61 prevents the main body 31 from falling off the shaft portion 13.

  As shown in FIG. 2, the pair of projecting portions 33 p and 34 p is provided at the upper end portion closer to the head portion 12 in both longitudinal ends of the main body 31, and abuts the lower end surface of the nut 61. As a result, the nut 61 is restricted from moving upward by the upper upper end wall portion 32, and is restricted from moving downward by the lower protrusions 33 p, 34 p, and of the longitudinal end portions of the main body 31, the one closer to the head 12. It is held at the upper end.

  FIG. 10 is an explanatory view showing a fixing tool in use, and FIG. 11 is an explanatory view showing a floor panel fixing operation. The fixture 10 clamps a fixed object in which the floor panel 101 and the H steel 111 are stacked in the vertical direction between the plate 21 that is the upper first fixing member and the hook 41 that is the lower second fixing member. Thereby, the fixing tool 10 fixes the floor panel 101 to the H steel 111 as a large drawing. The floor panel 101 has a plurality of joists 102 arranged in parallel at a predetermined interval and a plywood 103 fixed to the upper surfaces of the plurality of joists 102, and is lighter than a lightweight aerated concrete (ALC) board. The floor panel is made of wood and scaled down from a lightweight cellular concrete (ALC) board.

  The wooden joist 102 is provided with a through hole 104a extending in the vertical direction, and the wooden plywood 103 is also provided with a through hole 104b extending in the vertical direction. The through hole 104a and the through hole 104b are round holes extending coaxially. However, the through hole 104b has a larger diameter than the through hole 104a. Therefore, an upwardly flat annular surface 104c that forms a step is formed at these boundaries. The through holes 104 a and 104 b and the annular surface 104 c constitute a fixing through hole 104. The joist 102 extends at right angles to the H-shaped steel 111. The lower surface of the joist 102 is placed on the upper flange 112 of the H-shaped steel 111 via the protective plate 105.

  The fixing operation by the fixture 10 will be described. The bolt 11 of the fixture 10 is loosened and rotated in advance, and the fixture 10 is elongated as shown in FIG. The operator passes the fixing tool 10 from above through the fixing through hole 104 and places the plate 21 of the fixing tool 10 on the annular surface 104c. Then, the hook 41 is completely pulled out from the fixing through hole 104 downward. Then, as indicated by an arrow in FIG. 11, the hook 41 rotates from the storage position to the protruding position by its own weight. At this time, the fixture 10 straddles the upper flange 112 of the H-shaped steel 111, and the hook 41 faces the lower surface 113 of the upper flange.

  Next, the operator tightens and rotates the bolt 11 with the notch 25 of the plate 21 facing the H-shaped steel 111. Then, the nut 61 moves upward of the shaft portion 13 without rotating together, the fixture 10 becomes shorter, and the hook 41 of the fixture 10 comes into contact with the lower surface 113 of the upper flange 112. When the operator further tightens and rotates the head 12 of the bolt 11, the claw 23 of the plate 21 bites into the 104 c, and the joist 102 of the floor panel 101 and the upper flange 112 of the H-shaped steel 111 are attached to the plate 21 and the hook 41. It is pinched. As a result, the floor panel 101 is fixed to the H-shaped steel 111. In addition, by passing a spring washer (not shown) through the shaft portion 13 between the head portion 12 of the bolt 11 and the upper end portion 52 of the rotation stopper 51, the screwing of the shaft portion 13 and the nut 61 is prevented from loosening. can do.

  By the way, the fixture 10 of the present embodiment includes a bolt 11 having a head portion 12 and a shaft portion 13, a main body wall portion including a pair of side wall portions 33 and 34 extending along the shaft portion 13, and the main body wall portion. And the first end portion (upper end wall portion 32) closer to the head 12 than the pair of side wall portions 33, 34 and the shaft portion 13. A plate that is a first fixing member that has a main body 31 having a hole 32h through which the shaft 13 passes and a center hole 22 through which the shaft portion 13 passes, and that is sandwiched between the head 12 and the main body 31 and is restricted in axial movement. 21 and a nut 61 which is disposed between the pair of side wall portions 33 and 34 and is prevented from rotating around the side wall portions 33 and 34 and is screwed into the shaft portion 13 to prevent the upper end wall portion 32 of the main body 31 from coming off. And the head portion 12 of the pair of side wall portions 33 and 34 in the longitudinal direction. A storage position that is attached to the second end portion (lower end portion) of the far side and is stored between the pair of side wall portions 33 and 34, and a protruding position that protrudes in the short direction from between the pair of side wall portions 33 and 34 And a hook 41 as a second fixing member which is selectively selected.

  Therefore, the screwing portion 14 that prevents the nut 61 from coming off can be formed by inserting a tool from the outside into the openings 33 q and 34 q and crushing the male screw 13 m formed at the shaft end of the shaft portion 13. In addition, even when the bolt 11 is tightened and rotated during the fixing operation, the rotation of the nut 61 can be reliably prevented. In addition, a notch for attaching a nut is not formed in the main body 31 as in a conventional fixed hardware, but the nut 61 is disposed between a pair of side wall portions 33 and 34 extending in the axial direction. The area is not reduced and the tensile strength is not impaired.

  Moreover, the main body 31 of this embodiment is provided in the edge part close | similar to the head 12 among the longitudinal direction both ends of the main body wall part containing the side wall parts 33 and 34, and between a pair of side wall parts 33 and 34 is provided. Further, the nut 61 is restricted from moving in a direction away from the first end portion (upper end wall portion 32) of the main body by the protruding portions 33p and 34p. As a result, even if the main body 31 is inclined with respect to the bolt 11, the nut 61 is always accommodated between the pair of side wall portions 33 and 34, and is not detached from between the pair of side wall portions 33 and 34. Therefore, the nut 61 is always held so as not to rotate together, and the workability of the fixing work by the fixing tool 10 is improved.

  For comparison, a comparative example in which the protruding portions 33p and 34p are removed from the fixture 10 of the present embodiment is shown in a side view in FIG. The shaft portion 13 and the main body 31 normally extend in the vertical direction and are aligned in a straight line, but in the comparative example, the main body 31 may be inclined with respect to the shaft portion 13 for some reason such as receiving a lateral force. As a result, the shaft end 15 of the shaft portion 13 and the nut 61 screwed to the shaft portion 13 are separated from between the pair of side wall portions 33 and 34, and the rotation of the nut 61 cannot be prevented.

  Moreover, the bolt 11 of this embodiment has the screwing part 14 in the axial end part. The screwing portion 14 is provided by crushing the male screw portion of the shaft end portion of the male screw 13m formed on the outer periphery of the shaft portion 13. Therefore, even if an operator accidentally loosens and rotates the bolt 11 during the fixing work by the fixing tool 10, the nut 61 does not fall out of the shaft portion 13. Therefore, the main body 31 does not come out of the bolt 11 and drop out downward from the fixing through hole 104.

  Next, fixing according to another embodiment of the present invention will be described. FIG. 12 is a longitudinal sectional view showing a fixture 20 according to another embodiment of the present invention. FIG. 13 is a cross-sectional view showing another embodiment. In other embodiments, portions common to the embodiments shown in FIGS. 1 to 9 are denoted by the same reference numerals, description thereof is omitted, and different portions will be described. In another embodiment, the main body 31 is not provided with the protrusions 33p and 34p (FIG. 2), but instead is provided with a first front wall portion 37s and a second front wall portion 37r.

  The first front wall portion 37 s is provided at the front edge of the first side wall portion 33 and faces the first rear wall portion 35 provided at the rear edge of the first side wall portion 33. Thereby, 37 s of 1st front wall parts, the 1st side wall part 33, and the 1st rear wall part 35 comprise a U-shaped cross section, as shown in FIG. The second front wall portion 37 r is provided at the front edge of the second side wall portion 34 and faces the second rear wall portion 36 provided at the rear edge of the second side wall portion 34. Thus, the second front wall portion 37r, the second side wall portion 34, and the second rear wall portion 36 constitute a U-shaped cross section. The first front wall portion 37s, the first side wall portion 33, and the first rear wall portion 35 are paired with the second front wall portion 37r, the second side wall portion 34, and the second rear wall portion 36 as shown in FIG. The shaft portion 13 of the bolt 11 and the nut 61 are surrounded.

  The first front wall portion 37s and the second front wall portion 37r are disposed in a central region excluding the upper end portion and the lower end portion of the main body 31, and extend in the vertical direction along the shaft portion 13. The reason why the nut 61 is not arranged at the upper end is to incorporate the nut 61 between the pair of side walls 33 and 34 from the front of the main body 31. The reason why it is not arranged at the lower end is to cause the hook 41 accommodated between the pair of side walls 33 and 34 to protrude forward of the main body 31. The first front wall portion 37s and the second front wall portion 37r have the same thickness as the other wall portions of the main body wall portion, and when the main body 31 is manufactured by bending one plate material that continuously extends. It is formed.

  The main body 31 according to another embodiment includes a pair of first and second side wall portions 33 and 34 extending along the shaft portion 13, and also extends along the shaft portion 13 and has a first side wall portion. The first front wall portion 37 s, the second front wall portion 37 r, the first rear wall portion 35, and the second rear wall portion 36 that surround the shaft portion 13 together with 33 and the second side wall portion 34 are further provided. The main body 31 is formed in a first end portion (upper end wall portion 32) closer to the head 12 than the pair of first side wall portions 33 and second side wall portions 34, and the central hole 22 through which the shaft portion 13 passes. Have The nut 61 is restricted from moving forward by the first front wall portion 37s and the second front wall portion 37r on the front side, and restricted from moving forward by the first rear wall portion 35 and the second rear wall portion 36 on the rear side. The As a result, the shaft portion 13 and the nut 61 are held between the pair of the first side wall portion 33 and the second side wall portion 34 so as not to slip out forward or rearward.

  In the fixing device 20 according to another embodiment, the bolt 11 having the head portion 12 and the shaft portion 13, the main body 31 extending along the shaft portion 13 and surrounding the shaft portion 13, and the shaft portion 13 are passed. A plate 21 that is a first fixing member that has a central hole 22 that is restricted from moving in the axial direction between the head 12 and the main body 31, is held by the main body 31, is prevented from rotating, and is screwed into the shaft portion 13. A nut 61 that prevents the first end portion (upper end wall portion 32) of the main body 31 from coming off, and a hook 41 that is a second fixing member provided on the main body 31. As shown in FIG. 10, the fixture 20 can clamp the joist 102 and the upper flange 112 that are to be fixed between the plate 21 and the hook 41.

  As a result, even if the fixture 20 is shaken, the shaft portion 13 and the nut 61 are always accommodated between the pair of side wall portions 33 and 34 and are detached from between the pair of side wall portions 33 and 34 as shown in FIG. There is no. Therefore, the nut 61 is always held so as not to rotate together, and the workability of the fixing work by the fixing tool 20 is improved.

  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 fixture according to the invention is advantageously used in building structures.

10 fixtures, 11 bolts, 12 heads, 13 shafts,
13m male screw, 14 screwing part, 21 plate,
22 center hole, 22a circumferential edge, 22b rectangular edge,
23 nails, 31 body, 32 upper end wall,
33 1st side wall part, 34 2nd side wall part, 33p, 34p protrusion part,
33q, 34q opening, 35 first rear wall, 36 second rear wall,
37s 1st front wall part, 37r 2nd front wall part, 38 long hole,
39 lower opening, 40 shaft body, 41 hook, 42 base end,
43 free end, 45 cushioning material, 51 detent,
52 upper end, 53 lower end, 54 long part,
61 nuts, 101 floor panels, 102 joists,
103 plywood, 104 fixing through-hole, 104c annular surface,
105 Protection plate, 111 H-section steel, 112 Upper flange.

Claims (4)

A bolt having a head and a shaft,
A main body wall including a pair of side walls extending along the shaft, an opening formed in the main body wall facing the shaft end of the shaft, and closer to the head than the pair of side walls A main body having a through hole formed in the first end portion and through which the shaft portion is passed;
A first fixing member having a central hole through which the shaft portion is passed, the axial movement being restricted between the head portion and the main body;
A nut that is disposed between the pair of side walls and is prevented from rotating around the side walls, and that is screwed into the shaft portion to prevent the first end of the main body from coming off;
A second fixing member provided at a second end far from the head of the main body,
The main body further includes a protruding portion that is disposed at an end portion closer to the head portion in the longitudinal direction both ends of the main body wall portion and protrudes between the pair of side walls,
The nut is restricted from axial movement in a direction away from the first end of the main body by the protrusion,
The opening and the protrusion are formed by cutting and raising the main body wall.
A fixture capable of pinching a fixed object between the first fixing member and the second fixing member.   The fixture according to claim 1, wherein the openings are provided in the pair of side walls, respectively, and the pair of openings face each other. A bolt having a head and a shaft,
A pair of side walls extending along the shaft portion, a front wall and a rear wall extending along the shaft portion and surrounding the shaft portion together with the pair of side walls, and the pair of side walls. A main body having a through hole formed in the first end portion close to the head and through which the shaft portion is passed;
A first fixing member having a central hole through which the shaft portion is passed, the axial movement being restricted between the head portion and the main body;
It is held between the front wall, the rear wall, and the pair of side walls and is locked to the pair of side walls, and is screwed into the shaft portion to prevent the first end portion of the main body from coming off. With nuts,
A second fixing member provided at a second end far from the head of the main body,
A fixture capable of pinching a fixed object between the first fixing member and the second fixing member. The fixture according to any one of claims 1 to 3 , wherein a male screw portion at a shaft end portion is crushed among male screws formed on a shaft portion of the bolt.

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