JP2015031381A - Fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture which unfailingly prevents corotation of a nut without providing a cutout for receiving the nut.SOLUTION: A body (31) of a fixture (10) includes: an upper end wall part (32) which has a hole through which a shaft part (13) of a bolt (11) penetrates and is restricted from moving downward by the nut (61); a first side wall part (33) which extends downward from one side of the upper end wall part and contacts with a first surface of the nut; and a second side wall part (34) which extends downward from the other side of the upper end wall part and contacts with a second surface of the nut.

Description

  The present invention relates to a fixture or a fixture for mounting and fixing a floor panel to a large drawer or 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 Document 1 has a bolt having a head on the upper side and a shaft portion on the lower side and extending in the vertical direction, and a hole through which the shaft portion of the bolt penetrates. A panel abutting plate abutting on the main body, a main body fitting threadedly engaged with the male screw of the bolt shaft portion and extending downward from the bolt, and a hook attached to the lower end portion of the main body fitting so as to be rotatable. 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, a fixing hardware is passed downward through a fixing through hole provided in the floor panel, and the hook is protruded to the protruding position. When the bolt is tightened and rotated 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 is fixed to the beam so as to be immovable. That's it.

  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 vertical opening dimension of the nut mounting hole is slightly wider than the thickness of the hexagon nut. By inserting the hexagon nut into the nut mounting hole from the side of the main body bracket, the hexagon nut can be attached to and detached from the main body bracket. Attached to. The main body fitting engages with the hexagon nut inserted into the nut mounting hole so as not to move in the vertical direction.

Paragraph 0096 FIGS. 8 to 10

  However, in the conventional fixing hardware as described above, the rotation prevention of the hexagon nut with respect to the bolt is insufficient. 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 main body metal fitting must be properly positioned in the fixing through hole of the floor panel, and the main body metal fitting is located with respect to the fixing through hole. Don't be big or small. 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.

  In addition, when the cross-sectional area of the cross-sectional shape of the body fitting perpendicular to the vertical direction is observed at the part where the nut mounting hole is formed and other parts, most of the part is cut away 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 bolt is tightened and rotated to fix the floor panel to the beam so as not to move, the tensile force of the bolt must be handled with a slight cross-sectional area, and there is room for improvement.

  An object of this invention is to provide the fixing tool which can prevent the rotation of a nut reliably, without providing the notch for receiving a nut in view of the above-mentioned situation.

  For this purpose, the fixing device according to the present invention has a bolt having a head portion arranged on the upper side and a shaft portion arranged on the lower side, and a hole through which the shaft portion of the bolt passes, and is moved upward by the head portion. A shaft portion of a bolt having a regulated plate, a female screw formed on the inner periphery, a first surface formed on the outer periphery, and a second surface formed on the outer periphery at a circumferential position different from the first surface An annular nut that is screwed to the upper end wall, an upper end wall portion that has a hole through which a shaft portion of the bolt passes and is restricted from moving downward by the nut, extends downward from one side of the upper end wall portion, and contacts the first surface of the nut. A main body having a first side wall portion in contact, a second side wall portion extending downward from the other side of the upper end wall portion and coming into contact with a second surface of the nut; and a first side wall portion and a second side wall provided on the lower end side of the main body. The storage position stored between the side walls, and the vertical direction from between the first side wall and the second side wall And a hook to be selectively in a protruding position protruding corners.

  According to the present invention, since the nut is not fixed to the main body of the fixture, it is not necessary to fix the nut to the main body by welding or the like. Further, since the nut is disposed between the first side wall portion and the second side wall portion of the main body, it is not necessary to form a notch hole for receiving the nut in the first side wall portion and the second side wall portion. Therefore, the cross-sectional area in a part in the vertical direction of the main body does not become small compared with the cross-sectional area in other parts.

  In addition, since the first side wall portion of the main body contacts the first surface of the nut and the second side wall portion of the main body contacts the second surface of the nut, the rotation of the nut is restricted by the first side wall portion and the second side wall portion. Is done. Therefore, it is possible to prevent the nut from rotating together when the bolt is tightened and rotated.

  When the bolts are tightened and rotated to fix the floor panel to an overdrawn or beam so as to be immovable, the upper end surface of the nut comes into contact with the upper end wall of the main body, and the tensile axial force of the bolt is reliably transmitted to the main body. can do. The fixing device of the present invention is normally used in a posture in which the head portion of the bolt is on the upper side and the shaft portion of the bolt is on the lower side and extends in the vertical direction, but is not limited to this posture. . The fixture of the present invention does not exclude use in a posture extending in an oblique direction or a horizontal direction, for example.

  The nut is not particularly limited as long as it has a first surface and a second surface, and as one embodiment of the present invention, the first surface and the second surface of the nut have a substantially parallel positional relationship. The first side wall part and the second side wall part of the main body are arranged to face each other with a gap larger than the dimension from the first surface to the second surface. According to this embodiment, rotation of a nut can be controlled by the 1st side wall part and 2nd side wall part which are opposingly arranged. As a nut having a first surface and a second surface that are in a substantially parallel positional relationship, a commercially available hex nut whose outer periphery is a regular hexagon may be used. Or you may use the special nut of another shape. As another embodiment, when the nut is viewed in the axial direction, the positional relationship between the first surface and the second surface of the nut may be a square shape. Or as other embodiment, the cross-sectional shape of the 1st side wall part and the 2nd side wall part of a main body may be C-shaped.

  As a preferred embodiment of the present invention, the main body is formed by bending a single plate material extending continuously, one end portion of the plate material is a first side wall portion, and the other end portion of the plate material is a second side wall portion. It is preferable that the center portion of the plate member is an upper end wall portion. According to such an embodiment, since the upper end wall portion, the first side wall portion, and the second side wall portion of the main body are combined into one member, the number of parts of the main body of the fixture can be reduced, which is advantageous in production and cost. It is. As another embodiment, the upper end wall portion, the first side wall portion, and the second side wall portion of the main body may be separate members, and such separate members may be assembled or connected by welding or the like.

  As one embodiment of the present invention, the main body includes a first rear wall portion projecting from the first side wall portion toward the second side wall portion, and a second rear wall projecting from the second side wall portion toward the first side wall portion. A gap between the protruding edge of the first rear wall portion and the protruding edge of the second rear wall portion is such that the gap in the vertical middle portion is larger than the gap in the upper end portion and the lower end portion. A long hole extending in the vertical direction is formed between the upper end portion and the lower end portion, and the hole of the plate includes a front portion and a rear portion, and a shaft portion of a bolt is passed through the front portion and is a member extending in the vertical direction. The lower end is passed through the long hole to engage the main body so that it can move in the vertical direction and cannot move in the vertical direction, and the upper end is passed through the rear part of the hole in the plate to restrict relative rotation of the main body with respect to the plate. A rotation stopper is further provided. According to this embodiment, it becomes possible to provide a long hole behind the main body using the first side wall and the second side wall. And the rotation prevention tool which stops rotation of a main body can be appropriately engaged with the long hole of a main body.

  Although this invention is not limited to one Embodiment, the vertical space | interval of an upper end wall part and a 1st and 2nd rear wall part may be larger than the axial direction thickness of a nut. According to this embodiment, the nut can be assembled between the first side wall portion and the second side wall portion of the main body through the nut between the upper end wall portion and the first and second rear wall portions from the outside. Thereby, when assembling the fixture of the present invention at a factory or a construction site, not only can the nut be incorporated into the main body from the side from which the hook protrudes, but also the nut can be incorporated from the opposite side. Therefore, the assembly performance is improved. As another embodiment, the interval between the upper end wall portion and the first and second rear wall portions may be smaller than the axial thickness of the nut. In this case, the nut can be incorporated into the main body from the side from which the hook projects, but the nut cannot be incorporated from the opposite side.

  As a preferred embodiment of the present invention, the distance between the first and second side wall portions is larger than the dimension from the first surface to the second surface of the nut on the upper side, and from the first surface to the second surface of the nut on the lower side. It is comprised so that it may become smaller than the dimension to. According to such an embodiment, even when the nut does not screw into the shaft portion of the bolt, the nut is dropped by the lower portion of the first side wall portion and the lower portion of the second side wall portion whose distance is reduced. Can be prevented. The shapes of the lower part of the first side wall part and the lower part of the second side wall part are not particularly limited. For example, the lower part of the first side wall part and the lower part of the second side wall part are formed with projecting parts or claws protruding from one side to the other side. Or you may bend | fold the up-down direction intermediate part of a 1st side wall part and a 2nd side wall part, and may make the space | interval of the lower part narrower than the space | interval of an upper part. Or you may attach and fix the protrusion part or nail | claw etc. of a member different from a main body to the lower side part of a 1st side wall part and / or a 2nd side wall part.

  Thus, according to the present invention, it is not necessary to form a notch hole for receiving a nut in the first side wall portion and the second side wall portion, and the cross-sectional area in the vertical part of the main body is different from the cross-sectional area of the other part. It is advantageous in strength because it does not become so small as compared. Moreover, since the first side wall portion of the main body contacts the first surface of the nut and the second side wall portion of the main body contacts the second surface of the nut, the nut is reliably rotated by the first side wall portion and the second side wall portion. Regulated by Therefore, it is possible to prevent the nut from rotating together when the bolt is tightened and rotated. When tightening and rotating the bolt to fix the floor panel to the large pull or beam so that it cannot move, the upper end surface of the nut comes into contact with the upper end wall of the main body, and the tensile axial force of the bolt is , The floor panel and the draw can be strongly clamped between the plate and the hook of the present invention.

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 and hook 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 front view which takes out and shows the main body of other embodiments of the present invention.

  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. 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. Since the fixture 10 is basically 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. The bolt 11 is a commercial product, and a male screw 13 m is formed on the outer periphery of the shaft portion 13.

  The plate 21 is a flat metal plate and has a hole 22 through which the shaft portion 13 of the bolt 11 passes. The outline of the 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 22 b that becomes the rear part of the hole 22 is formed wider than the circular peripheral edge 22 a that becomes the front part of the hole 22. Since the dimension in the width direction of the hole 22 is smaller than the sectional shape of the head 12, the upward movement of the plate 21 is restricted by the head 12. 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.

  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.

  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. Further, 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.

  The upper end portions 35a, 36a of the first rear wall portion 35 and the second rear wall portion 36 are arranged apart from the upper end wall portion 32 and open in the front-rear direction between the upper end wall portion 32 and the rear wall portion. The upper opening 37 is formed. The vertical dimension of the upper opening 37 is made larger than the vertical thickness of the nut 61.

  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 and 3, the hook 41 is housed between the first side wall 33 and the second side wall 34 as shown by a solid line, and the first side wall as shown by a virtual line in FIG. It is selectively made into the protrusion position which protrudes ahead from the part 33 and the 2nd side wall part 34 at right angles to an up-down direction. The hook 41 in the storage position extends in the vertical direction along the main body 31 with the base end 42 as the lower side and the free end 43 as the upper side. 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 front-rear direction with the free end 43 at the front and the base end 42 at the rear. 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.

  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 portion 53 protruding forward from the long portion 54 is formed to have a wide tip end side and a narrow base side to be connected to the long portion 54 like a T-shape. The T-shaped lower end portion 53 is passed through a long hole 38 provided on the rear side of the main body 31, and engages with the first rear wall portion 35 and the second rear wall portion 36, and is prevented from coming out backward. However, it can move in the vertical direction along the long hole 38. 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 at the rear portion of the plate 21. The rectangular edge 22 b of the hole 22 is formed wider than the long part 54, but the circumferential edge of the hole 22 is formed narrower than the long part 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 hole 22 is larger than the cross-sectional shape of the elongated 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 other words, below the head 12, an upper end 52, a plate 21, an upper end wall 32 of the main body 31, and an annular nut 61 are sequentially arranged from top to bottom. 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 portion 33 and the second side wall portion 34 of the main body 31, and the first surface and the second surface parallel to each other among the six flat hexagonal outer surfaces of the nut 61. Are in contact with the first side wall 33 and the second side wall 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. The nut 61 abuts against the lower surface of the upper end wall portion 32 and prevents the main body 31 from falling off the shaft portion 13 in a state where the bolt 11 is loosened and the fixture 10 is lengthened.

  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 fixes the floor panel 101 to the H-section steel 111 as a large draw. 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 aerated 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 joist 102 of the floor panel 101 and the upper flange 112 of the H-shaped steel 111 are clamped between the plate 21 and the hook 41. As a result, the floor panel 101 is fixed to the H-shaped steel 111. It is possible to prevent loosening of the screwing of the shaft portion 13 and the nut 61 by passing a spring washer 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.

  According to the present embodiment, the hexagonal nut 61 having the first surface and the second surface arranged in parallel with each other on the outer periphery is accommodated between the first side wall portion 33 and the second side wall portion 34 of the main body 31. Thus, the first side wall portion 33 contacts the first surface of the nut 61, and the second side wall portion 34 contacts the second surface of the nut 61. Thereby, when rotating the bolt 11, the nut 61 does not rotate together, and the bolt 11 can be tightened and rotated.

  Moreover, according to this embodiment, since the nut 61 is accommodated between the 1st side wall part 33 and the 2nd side wall part 34 which are extended in an up-down direction, the special notch for accommodating the nut 61 is made into the 1st side wall part. 33 and the second side wall portion 34 need not be provided. Therefore, the cross-sectional shape that appears when the main body 31 is cut along a plane perpendicular to the vertical direction does not become small at the portion where the nut 61 is accommodated.

  Further, according to the present embodiment, the upper opening 37 that opens in the front-rear direction is formed between the upper end wall portion 32 and the upper end portions 35a, 36a of the first rear wall portion 35 and the second rear wall portion 36. The vertical spacing of 37 is larger than the axial thickness of the nut 61. Thereby, in assembling the fixture 10, the nut 61 can be inserted between the side walls from either the front side or the rear side of the main body 31. Therefore, the assembly efficiency is improved.

  Next, another embodiment of the present invention will be described. FIG. 12 is a front view showing a main body extracted from another embodiment of the present invention. About this embodiment, about the structure which is common in embodiment mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted and a different structure is demonstrated below. The main body 31 shown in FIG. 12 further has a pair of protrusions 33p and 34p facing each other. The protrusion 33p is formed on the first side wall 33 below the upper opening 37 and above the free end 43 in the storage position. The protrusion 34p is also formed on the second side wall 34 in the same manner as the protrusion 33p. The distance between the pair of protrusions 33p and 34p is larger than the outer diameter of the shaft portion 13 of the bolt 11 but smaller than the diameter dimension of the nut 61.

  According to another embodiment, the distance between the first side wall 33 and the second side wall 34 is larger than the dimension from the first surface to the second surface of the nut 61 at substantially the same height as the upper opening 37. The lower projections 33p and 34p are configured to be smaller than the dimension from the first surface to the second surface of the nut 61. Accordingly, the pair of protrusions 33p and 34p restricts the downward movement of the nut 61.

  The pair of protrusions 33p and 34p are provided at substantially the same height as the upper end portions 35a and 36a, so that the nut 61 is held at the vertical position between the upper end wall 32 and the protrusions 33p and 34p. Is done. Thereby, the nut 61 does not move greatly in the vertical direction along the main body 31, and the assembly work of the fixture 10 can be performed efficiently.

  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 thread, 21 plate, 22 holes, 22a circumference,
22b rectangular edge, 31 main body, 32 upper end wall portion, 33 first side wall portion,
34 second side wall, 33p, 34p projection, 35 first rear wall,
36 second rear wall, 37 upper opening, 38 oblong 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 nut, 101 floor panel, 102 joist,
103 plywood, 104 fixing through-hole, 104c annular surface,
105 Protection plate, 111 H-section steel, 112 Upper flange.

Claims (6)

A bolt having a head portion disposed on the upper side and a shaft portion disposed on the lower side;
A plate having a hole through which the shaft portion of the bolt penetrates, and the upward movement restricted by the head;
It has a female screw formed on the inner periphery, a first surface formed on the outer periphery, and a second surface formed on the outer periphery at a circumferential position different from the first surface, and is screwed into the shaft portion of the bolt. An annular nut,
An upper end wall portion that has a hole through which the shaft portion of the bolt passes and is restricted from moving downward by the nut, and a first side wall portion that extends downward from one side of the upper end wall portion and contacts the first surface of the nut A main body having a second side wall portion that extends downward from the other side of the upper end wall portion and contacts the second surface of the nut;
It is provided on the lower end side of the main body and protrudes perpendicularly in the vertical direction from the storage position stored between the first side wall and the second side wall and between the first side wall and the second side wall. A fastener comprising a hook selectively selected to a protruding position. The first surface and the second surface of the nut are arranged so as to have a substantially parallel positional relationship with each other,
2. The fixture according to claim 1, wherein the first side wall portion and the second side wall portion of the main body are opposed to each other with an interval larger than a dimension from the first surface to the second surface.   The main body is formed by bending a single plate material extending continuously, one end portion of the plate material is used as the first side wall portion, and the other end portion of the plate material is used as the second side wall portion. The fixing tool according to claim 1, wherein a central portion of the upper end wall portion is set as the upper end wall portion. The main body further includes a first rear wall portion projecting from the first side wall portion toward the second side wall portion, and a second rear wall portion projecting from the second side wall portion toward the first side wall portion. Have
The gap between the protruding edge of the first rear wall portion and the protruding edge of the second rear wall portion is such that the gap in the middle portion in the vertical direction is larger than the gap in the upper end portion and the lower end portion. Constitute a long hole extending in the vertical direction between the part,
The hole of the plate includes a front part and a rear part, and the shaft part of the bolt is passed through the front part,
It is a member extending in the vertical direction, the lower end is passed through the elongated hole and engages with the main body so that it can move in the vertical direction and cannot move forward and backward, and the upper end side is passed through the rear part of the hole in the plate, The fixing tool according to claim 1, further comprising a rotation stopper that restricts relative rotation of the main body with respect to the plate.   The fixture according to claim 4, wherein an interval in the vertical direction between the upper end wall portion and the first and second rear wall portions is larger than an axial thickness of the nut.   The distance between the first and second side wall portions is larger than the dimension from the first surface to the second surface of the nut on the upper side, and is smaller than the dimension from the first surface to the second surface of the nut on the lower side. The fixture according to any of claims 1 to 5, configured to be smaller.

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