JP5508452B2 - Fixing method of fixed object using fixed hardware and fixed hardware - Google Patents

Description

  The present invention relates to a fixed hardware and a fixing method of a fixed object using the fixed hardware.

  Conventionally, a fixed hardware provided with an upper sandwiching portion and a lower sandwiching portion is inserted from above into a hole penetrating up and down provided in the fixing object, and the fixing object is operated by an operation from above with the upper clamping portion and the lower clamping portion. Patent Document 1, Patent Document 2, and the like are known.

  In the fixed hardware shown in Patent Document 1 and Patent Document 2, a bolt is screwed onto the upper portion of the metal base, and a washer member serving as an upper clamping portion is interposed between the hardware base and the head of the bolt, and the metal base One end portion of a hook serving as a lower clamping portion is rotatably supported on the lower end portion of the shaft.

  The hook is configured to pass through the hole in a standing posture along the metal base when the metal base is inserted from above into the hole provided in the fixed object. After passing through the hole, the hook rotates by its own weight. Open sideways. When the hook is rotated and opened sideways, the rear end portion hits the lower end surface of the metal base, and further rotation is restricted and fixed.

  The fixed object is, for example, a beam and a floor panel placed on the upper flange of the beam.

  Then, the worker inserts the metal base from above into the hole provided in the floor panel with the hook upright at the site, as described above, causes the hook to protrude below the floor flange, and the washer member. Abut on the upper surface of the floor flange.

  After passing through the hole, the hook is rotated by its own weight and opened sideways, and the rear end of the hook hits the lower end surface of the metal base and the rotation is restricted and fixed.

  In this state, the operator rotates the head of the bolt, reduces the distance between the washer member and the hook, abuts the hook against the lower surface of the upper flange, and fixes the floor panel and beam ( The upper flange) is sandwiched between the washer member and the hook.

  In this way, the operator can perform fixing by holding the fixing object using the fixing hardware only from the upper surface side of the fixing object.

JP 2001-146807 A JP 2010-84467 A

  However, in the above conventional example, on the lower surface side of the fixing target, one end of the hook that is the lower clamping portion is in contact with only one portion of the lower surface of the upper flange of the beam among the floor panel and the beam that is the fixing target. Become. In addition, the width of the portion where the tip of the hook abuts the lower surface of the upper flange of the beam is narrow because the floor panel needs to be inserted in a standing state with the hook along the metal base.

  In this way, the hook has only a narrow portion at the tip of one end abutted against the lower surface of the upper flange of the beam. For this reason, the fixing strength of the object to be fixed by pinching the hook is weak.

  Further, since one end portion of the hook is only in contact with the lower surface of the upper flange of the beam, when vibration or the like acts, the base metal is likely to be displaced laterally within the hole, and the fixing strength is likely to be unstable.

  The present invention has been invented in view of the problems of the above-described conventional example, and the fixing on the lower surface side of the object to be fixed by the lower clamping portion can be firmly and stably fixed and the fixing using the fixing hardware. The object is to provide a method for holding the object.

Fixing hardware of the present invention includes a upper sandwiching portion for sandwiching from above the fixed target provided in the upper portion of the main body, and a lower clamping unit for clamping the fixed target from the bottom, a fixing hardware equipped with. The fixed object is a beam having an upper flange and a floor panel placed on the upper flange. The lower clamping portion is rotatable with respect to the main body , and has a standing posture that stands up along the main body and a horizontal posture in which the left and right balance is obtained in a collapsed free state. Yes, and both end portions of the lower clamping part which is in the horizontal position and a first lower clamping portions respectively, the second lower clamping unit. The body, in the rotation operation from above, Ru provided with the upper clamping part, the telescopic function unit for changing the distance between the lower sandwiching portion in the horizontal position. The lower clamping part, in front KiOkoshi standing posture, the first clamping portion is positioned above the second holding portion located below, in the upright position, through the vertically provided in the fixed target a projectable through the hole on the lower side of the fixed target and the while protruding to the lower side of the fixed target and stops I Do and the horizontal position is balanced in the right and left in a free state. In the horizontal posture, the distance between the upper clamping portion and the lower clamping portion is reduced, and the first lower clamping portion first comes into contact with the lower surface of the upper flange portion and stops in the horizontal posture. Further, the lower sandwiching portion rotates and tilts, and the second lower sandwiching portion contacts the lower surface of the floor panel, so that the fixed object is the upper sandwiching portion, the first lower sandwiching portion, and the second lower sandwiching portion. that it is provided so as to be sandwiched between the sandwiching portion.

  Further, the main body is constituted by a vertically long metal base, and a bolt having a rotation operation part at the upper end is screwed to a female screw part provided on the upper part of the metal base, so that the upper end of the metal base is A rotation operation part of the bolt is provided at the upper end of the bolt, the upper clamping part is interposed between the rotation operation part and the upper end of the metal base, and the lower end of the metal base is provided. It is preferable that the lower clamping portion is pivotably attached.

  Further, in the method for holding a fixed object using the fixed hardware according to the present invention, the hole provided in the fixed object in a state where the fixed hardware is erected so that the lower holding part is along the main body. The lower clamping part is inserted into the lower part through the hole and protrudes to the lower side of the fixed object, and the lower clamping part is rotated in the free state by protruding the lower part in the free state. In a lateral orientation that is balanced and lateral, then, by operating the telescopic mechanism portion from above, reducing the interval between the upper sandwiching portion and the lower sandwiching portion, the fixed object, The upper sandwiching portion is sandwiched between the first lower sandwiching portion and the second lower sandwiching portion.

In the present invention, the lower holding portion rotates and stops in a horizontal posture where the left and right balance is obtained in a free state, so that the gap between the upper holding portion and the lower holding portion is reduced in this horizontal posture. Then, first, the first lower sandwiching portion comes into contact with the lower surface of the upper flange portion, the lower sandwiching portion stopped in the horizontal posture rotates and tilts, and the second lower sandwiching portion comes into contact with the lower surface of the floor panel. the first lower clamping unit is both end portions and the second lower clamping portion of the lower clamping part, it is possible to clamp hitting from below into the fixed target. Thereby, the fixing location in the lower surface side of the fixing object by a lower clamping part increases, and it becomes possible to fix firmly and stably.

An embodiment of the fixed metal fitting of the present invention is shown, (a) is a perspective view showing the state where the lower clamping part stood up, and (b) is a perspective view showing the state where the lower clamping part was taken sideways. is there. The lower clamping part same as the above shows a state in which it stands up, (a) is a plan view, and (b) is a side view. The lower clamping part same as the above shows a state in which it is in a horizontal orientation, (a) is a plan view, and (b) is a side view. It is sectional drawing of the state before inserting the fixed metal fixture same as the above into the hole of fixation object. It is sectional drawing of the state in the middle of inserting the fixed hardware same as the above into the hole of fixation object. It is sectional drawing which shows the state which penetrates the fixed metal fixture same as the above and to which a lower clamping part rotates to a horizontal attitude | position on the lower surface side of a fixation object. It is sectional drawing of the state which clamps and fixes the fixed object with the upper clamping part and lower clamping part of the fixed metal hardware same as the above. FIG. 7 shows another embodiment of the fixed hardware of the present invention, (a) is a perspective view showing a state in which the lower holding portion is in a standing position, and (b) is a view showing the state in which the lower holding portion is raised from another direction. FIG. It is a perspective view which shows the state which the lower clamping part same as the above made the horizontal attitude | position. It is the perspective view seen from the other direction which shows the state which the lower clamping part same as the above made the horizontal attitude | position. The lower clamping part same as the above shows a state in which it stands up, (a) is a plan view, and (b) is a side view. The lower clamping part same as the above shows a state in which it is in a horizontal orientation, (a) is a plan view, and (b) is a side view. It is sectional drawing of the state before inserting the fixed metal fixture same as the above into the hole of fixation object. It is sectional drawing of the state in the middle of inserting the fixed hardware same as the above into the hole of fixation object. It is sectional drawing which shows the state which penetrates the fixed metal fixture same as the above and to which a lower clamping part rotates to a horizontal attitude | position on the lower surface side of a fixation object. It is sectional drawing of the state which clamps and fixes the fixed object with the upper clamping part and lower clamping part of the fixed metal hardware same as the above.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  The fixed hardware 11 includes a main body 3 that can be inserted from above into a hole 2 that penetrates the fixing object 1 from above and below, an upper clamping part 4 and a lower clamping part 5 that clamp the fixing object 1 from above and below, and rotation from above. A telescopic function unit 6 is provided that allows the distance between the upper clamping unit 4 and the lower clamping unit 5 to be varied by operation.

  In the embodiment shown in FIGS. 1 to 7, the main body 3 is configured by attaching bolts 9 to the metal base 7.

  The metal base 7 is formed of a vertically elongated member formed by bending a steel plate, and has a U-shaped cross section in which side pieces 7b are integrally projected on both sides of the back piece 7a. Is the groove 7c.

  Further, an upper horizontal piece 7d is integrally provided at the upper end portion of the metal base 7, and a female screw portion 8 is provided close to the upper horizontal piece 7d, or a female screw portion 8 is provided on the upper horizontal piece 7d. It is.

  Here, as an example in which the female screw portion 8 is provided close to the upper horizontal piece 7d, a nut is disposed in the U-shaped groove portion 7c on the lower surface side of the upper horizontal piece 7d, and the nut is used as the female screw portion 8. . When a nut is disposed in the U-shaped groove 7c as in this example, it is preferable that the nut cannot be rotated on the inner surface of the U-shaped groove 7c so that the nut does not rotate together.

  Further, as an example of providing the female screw portion 8 on the upper horizontal piece 7d, a nut is fixed to the upper horizontal piece 7d to form the female screw portion 8, or a screw hole is directly formed in the upper horizontal piece 7d and the female screw portion 8 is formed. This is part 8.

  A bolt 9 is screwed into the female screw portion 8 of the upper horizontal piece 7d of the metal base 7 from above to constitute the telescopic function portion 6.

  A head 9 a is provided at the upper end of the bolt 9, and a rotation operation unit 10 for rotating the bolt 9 is provided on the head 9 a.

  An upper clamping portion 4 is interposed between the head portion 9 a of the bolt 9 and the female screw portion 8 of the metal base 7.

  In the embodiment of the accompanying drawings, the upper clamping part 4 is constituted by a metal washer member 4a, and a bolt 9 is inserted into a hole 4b provided in the washer member 4a.

  The lower end portions of both side pieces 7b of the metal base 7 protrude downward from the lower end of the back piece 7a to form a shaft support piece 7e.

  Between the shaft support pieces 7e, a substantially intermediate portion in the longitudinal direction of the lower clamping portion 5 is rotatably supported by a pin 12.

  In the embodiment of the accompanying drawings, the lower clamping part 5 is constituted by an elongated member formed by bending a steel plate to have a U-shaped cross section, and both longitudinal ends of the lower clamping part 5 are respectively the first lower clamping part 5a, It becomes the 2nd lower clamping part 5b.

  The lower clamping part 5 can take an upright posture that stands up along the metal base 7 as shown in FIG. 1A and FIG. 2B by rotating around the pin 12. In the standing posture, the lower holding part 5 is accommodated in the groove part 7c of the metal base body 7 in the longitudinal direction, and substantially half in the longitudinal direction protrudes downward from the lower end of the metal base body 7.

  The lower clamping unit 5 is configured to rotate from an upright posture by its own weight and to fall sideways. When the lower holding part 5 is tilted to the side, as shown in FIGS. 1 (b) and 3 (b), the left and right balance is obtained with the pin 12 being centered in the tilted free state so as to stop in a lateral posture. The shaft support position by the pin 12 is set.

  That is, the position of the center of gravity of the lower clamping part 5 is a pivotal support position by the pin 12, or the position of the center of gravity of the lower clamping part 5 is positioned on a vertical line passing through the pin 12 in a state of being stopped in the horizontal orientation, or this vertical line It is set to be in the vicinity.

  In this way, a gap is generated between the lower holding part 5 and the lower end of the back piece 7a in a state where the left and right holding part 5 is in a free state and left and right are balanced and stopped in a horizontal posture. For this reason, when an external force is applied to the lower clamping portion 5 in a state of being stopped in this lateral orientation, the seesaw can be swung around the pin 12. That is, the lower clamping unit 5 is in a state where the left and right are balanced in a free state and stopped in a horizontal posture, and beyond this horizontal posture, the lower clamping unit 5 hits the lower end of the back piece 7a. Up to).

  The fixed object 1 is clamped using the fixed hardware 11 having the above-described configuration.

  In the attached drawings, an example is shown in which the fixing object 1 is a beam 13 made of steel such as H-shaped steel and a floor panel 14 such as ALC mounted on the upper flange 13a of the beam 13. That is, this example is an example in which the fixed panel 11 is used to sandwich and fix the floor panel 14 that is one component of the fixation target 1 and the beam 13 that is another component of the fixation target.

  As shown in FIG. 4, the floor panel 14 is formed with a hole 2 penetrating vertically at a position adjacent to the tip of the upper flange 13a. The hole 2 communicates with the small diameter hole 2a and the upper end of the small diameter hole 2a. The large-diameter hole portion 2b is configured.

  In order to pinch the fixed object 1 using the fixed hardware 11, it is performed as follows.

  First, the operator turns the lower holding portion 5 to stand up and positions the fixed hardware 11 above the hole 2 of the floor panel 14 as shown in FIG. Next, as shown in FIG. 5, the fixed hardware 11 is inserted from above.

  The lower clamping part 5 in the standing posture passes through the hole 2, and the upper end of the lower clamping part 5 reaches below the lower surface of the floor panel 14 and the lower surface of the upper flange 13a, which are the fixing objects 1, as shown in FIG. And the lower clamping part 5 rotates sideways like a continuous line from the state of an imaginary line with dead weight.

  Here, when the center of gravity of the lower holding part 5 is eccentric in the standing position, the position of the pin 12 is offset in the direction away from the back piece 7a from the position of the pin 12, and when the lower holding part 5 passes through the hole 2, the center of gravity automatically Turn sideways.

  Also, if the center of gravity of the lower clamping part 5 is eccentric to the back piece 7a side from the position of the pin 12 in the standing posture, even if the lower clamping part 5 passes through the hole 2, it will turn to the side as it is. Does not move.

  In this case, vibration is applied to the fixed hardware 11 from above the floor panel 14 to vibrate the lower clamping part 5 and to provide initial turning power. It becomes possible to turn toward the direction.

  When the lower clamping part 5 falls to the side, as shown in FIG. 6, the left and right balance is achieved around the pin 12 in the fallen free state, and it stops in a lateral posture.

  Moreover, after the lower clamping part 5 passes the hole 2, the upper clamping part 4 and the head 9a of the bolt 9 are fitted into the large diameter hole part 2b and placed on the bottom surface 2c of the large diameter hole part 2b.

  Next, the operator rotates the head 9 a which is the rotation operation unit 10 of the bolt 9 from above the floor panel 14 to reduce the interval between the upper clamping unit 4 and the lower clamping unit 5. When the interval between the upper clamping unit 4 and the lower clamping unit 5 is reduced, first, the first lower clamping unit 5a at one end of the lower clamping unit 5 contacts the lower surface of the upper flange 13a. Further, when the interval between the upper clamping portion 4 and the lower clamping portion 5 is reduced, the lower clamping portion 5 that has been stopped in the horizontal posture rotates around the pin 12 while being in contact with the lower surface of the upper flange 13a. The second sandwiching portion 5b comes into contact with the lower surface of the floor panel 14.

  As shown in FIG. 7, the first lower clamping portion 5a and the second lower clamping portion 5b are firmly tightened with the bolts 9 in contact with the lower surface of the upper flange 13a and the lower surface of the floor panel 14, as shown in FIG. The clamping part 4 is pressed against the bottom surface 2c of the large-diameter hole 2b, and the first lower clamping part 5a and the second lower clamping part 5b are pressed against the lower surface of the upper flange 13a and the lower surface of the floor panel 14.

  In this way, the beam 13 and the floor panel 14 which are the objects to be fixed 1 are sandwiched and fixed from above and below by the fixed hardware 11.

  Here, even when the thickness of the upper flange 13a is different, only the rotation angle of the lower clamping part 5 in the clamping state is different, and the first lower clamping part 5a and the second lower clamping part 5b are The lower surface of 13a and the lower surface of the floor panel 14 are press-contacted.

  In the present embodiment, the lower clamping part 5 is provided at two locations on the lower surface of the upper flange 13a of the beam 13 and the lower surface of the floor panel 14 to which the first lower clamping part 5a and the second lower clamping part 5b are fixed. Since the pressure contact is held, the number of fixing points on the lower surface side of the fixing object 1 is increased and the fixing object 1 is firmly fixed.

  In addition, even if vibration is applied to the fixed hardware 11, the lower clamping portion 5 is clamped by pressing at two locations, so that the clamping position is not easily displaced and stable fixing is possible.

  Further, since the expansion / contraction function part 6 is configured by screwing the bolt 9 from above into the female screw part 8 of the upper horizontal piece 7d of the metal base 7, the operation of the expansion / contraction function part 6 (rotation operation of the bolt 9). Even if the interval between the upper sandwiching portion 4 and the lower sandwiching portion 5 is reduced, the upper sandwiching portion 4 and the upper end of the bolt 9 (that is, the head) are pressed in a state where the upper sandwiching portion 4 is pressed on the lower surface side of the head 9a. The positional relationship with the part 9a) does not change. Therefore, even if the bolt 9 is rotated to move the lower clamping part 4 upward, the upper end of the bolt 9 (that is, the head 9a) does not move upward and does not protrude to the upper surface side of the floor panel 14. It becomes possible to do.

  Another embodiment is shown in FIGS.

  In this embodiment, an example is shown in which the bolt 9 constituting the main body 3 is provided with an upper clamping portion 4 and a lower clamping portion 5.

  Moreover, in this embodiment, the expansion / contraction function part 6 which can change the distance between the upper clamping part 4 and the lower clamping part 5 by rotation operation from upper direction is comprised with the volt | bolt 9 and the nut 18 mentioned later. .

  The upper clamping part 4 is composed of a metal washer member 4a, and a bolt 9 is inserted into a hole 4b provided in the washer member 4a.

  The lower clamping part 5 is provided with a bolt insertion part 20 through which the bolt 9 is inserted. The bolt insertion portion 20 includes a first bolt insertion portion 21 that allows insertion of the bolt 9 in the standing posture of the lower clamping portion 5 and a second bolt insertion portion that permits insertion of the bolt 9 in the lateral orientation of the lower clamping portion 5. 22 and a communication portion 23 that allows the bolt 9 to rotate so that the posture in which the bolt 9 is inserted into the second bolt insertion portion 22 is changed from the posture in which the bolt 9 is inserted into the first bolt insertion portion 21. The

  In this embodiment, the lower clamping part 5 is comprised by the elongate member 15 formed by bending a steel plate.

  As shown in FIGS. 8 to 12, the elongate member 15 includes a pair of side surface pieces 15 a and an upper surface piece 15 b continuously connecting the side surface pieces 15 a together. Between the side piece 15a of this elongate member 15, the 1st bolt insertion part 21 which accept | permits the insertion of the volt | bolt 9 (insertion of the volt | bolt 9 in the standing position of the lower clamping part 5) is formed along the longitudinal direction.

  In a state where the elongated member 15 is in a lateral posture so that the upper surface piece 15b is on the upper surface side, a portion integrally connected by the upper surface piece 15b in order from one end portion to the other end portion of the elongated member 15 in the longitudinal direction; A first opening 15c and a second opening 15d are formed.

  The upper surface piece 15b is one end in the width direction of the elongated side surface piece 15a facing each other, and substantially one side portion in the longitudinal direction is continuously integrated.

  The first opening portion 15c is not only opened at the upper surface of the substantially central portion in the longitudinal direction of the elongated member 15, but is also opened at the upper side surface by cutting out the upper portion of the side piece 15a.

  Therefore, the width of the side surface pieces 15a is shortened in the first opening 15c portion.

  An inclined piece 15e is integrally extended to the end edge portion on the first opening 15c side of the portion where the width of the side piece 15a is narrowed toward the inner side obliquely downward.

  The pair of inclined pieces 15e are opposed to each other in a substantially inverted C shape, and a receiving portion 15f is formed.

  A portion surrounded by the both side surface pieces 15 a, the upper surface piece 15 b, and the receiving portion 15 f inside the elongated member 15 is a first bolt insertion portion 21.

  The second opening 15d is not only opened in the vertical direction, but is opened so that one end in the longitudinal direction communicates with the first opening 15c, and the other end in the longitudinal direction is also opened.

  In the embodiment shown in the attached drawings, a reinforcing edge piece 15g is projected inward from the end edge of both side pieces 15a, and the space between both edge pieces 15g is formed as a second opening 15d. It is not always necessary to provide the edge piece 15g.

  The opening width dimension of the first opening 15c and the second opening 15d is set larger than the diameter of the shaft portion of the bolt 9.

  An elongated cut portion 15h that opens to the first bolt insertion portion 21 is formed at the end of the upper surface piece 15b on the first opening portion 15c side, and this elongated cut portion 15h is a bolt in the lateral orientation of the lower clamping portion 5 9 is a second bolt insertion portion 22 that allows 9 insertion.

  The width dimension of the elongated cut portion 15h is larger than the diameter of the shaft portion of the bolt 9 and smaller than the facing dimension of the nut 18 screwed into the bolt 9.

  Further, the bolt 9 is rotated by the first opening 15c and the second opening 15d so that the bolt 9 is inserted into the second bolt insertion part 22 from the attitude inserted through the first bolt insertion part 21. The communication part 23 which permits the above is configured.

  The communication portion 23 communicates with the first bolt insertion portion 21 and also communicates with an elongated cut portion 15 h that is the second bolt insertion portion 22.

  The elongated member 15 is provided with a contact portion 19. The contact portion 19 is provided at a lower portion of a substantially intermediate portion in the longitudinal direction of the elongated member 15.

  The bolt 9 is inserted into the hole 4b of the washer member 4a and is connected to one end of the first bolt insertion portion 21 of the elongated member 15, that is, one end in the longitudinal direction between the side surface pieces 15a (the end portion on the first opening 15c side). ) Into the elongated member 15. Here, the bolt 9 is passed between the receiving portion 15f and the upper surface piece 15b, and the nut 18 is screwed to the tip portion.

  The nut 18 is larger than the width of the elongated cut portion 15h. Here, the nut 18 has a facing dimension smaller than a dimension between the side face pieces 15a so that the nut 18 cannot rotate between the both side face pieces 15a in a state where the nut 18 is disposed between the both side face pieces 15a, and the diagonal dimension is set to the both side faces. It is preferable to use a larger one than the dimension between the pieces 15a.

  As shown in FIG. 8 and FIG. 11, the fixed hardware 11 of the present embodiment is such that the elongated member 15 stands up along the bolt 9, and the nut 18 is applied to the contact portion 19, so that the elongated member 15 is in a standing posture. It does not fall down from 9 down.

  In this case, the position of the center of gravity of the elongated member 15 is indicated by an arrow in FIG. 11B when the nut 18 is in contact with the contact portion 19 or the nut 18 is in contact with the contact portion 19. It is set at a position where it can be rotated in the direction (counterclockwise in the figure). The center of gravity of the elongate member 15 is set such that a vertical line passing through the center of gravity of the elongate member 15 passes through the elongate cut portion 15h in a state in which the elongate member 15 is in the horizontal posture.

  Therefore, the elongated member 15 starts to rotate around the contact portion between the nut 18 and the contact portion 19 by applying an external force such as its own weight or vibration while the elongated member 15 is standing along the bolt 9. As the elongated member 15 is rotated, the bolt 9 is rotated in the communication portion 23 to be inserted through the elongated cut portion 15h as shown in FIGS. It contacts the lower surface side of the elongated cut portion 15h. In this state, the elongated member 15 stops in a lateral posture in which the left and right balance is achieved in a free state around the contact portion of the nut 18.

  When an external force is applied to the lower clamping portion 5 in the state of being stopped in the horizontal posture shown in FIGS. 9, 10, and 12, the seesaw swings around the portion where the nut 18 hits the back surface of the elongated cut portion 15h. It is possible to move. That is, the lower clamping unit 5 is further rotatable beyond the horizontal posture in a state where the left and right are balanced in a free state and stopped in the horizontal posture.

  In order to clamp the fixed object 1 using the fixed hardware 11 of this embodiment, it is performed as follows.

  First, the worker turns the elongated member 15 that is the lower clamping portion 5 along the bolt 9 and moves the fixed hardware 11 upward into the hole 2 of the floor panel 14 in the order of FIGS. 13 to 15. Insert through.

  When the lower clamping part 5 in the standing posture passes through the hole 2 and the upper end of the lower clamping part 5 reaches below the lower surface of the floor panel 14 and the lower surface of the upper flange 13a as the fixing object 1, the lower clamping part 5 is self-weighted. To the side.

  When the lower clamping part 5 falls to the side, as shown in FIG. 15, the nut 18 is balanced in the left and right positions with the nut 18 in contact with the back surface of the elongated cut part 15h in a fallen free state, and stops in a sideways posture. .

  Moreover, after the lower clamping part 5 passes the hole 2, the upper clamping part 4 and the head 9a of the bolt 9 are fitted into the large diameter hole part 2b and placed on the bottom surface 2c of the large diameter hole part 2b.

  Next, the operator rotates the head 9a, which is the rotation operation unit 10 of the bolt 9, from above the floor panel 14, and pushes the lower clamping unit 5 upward by the nut 18, so that the upper clamping unit 4 and the lower clamping unit The interval between 5 is reduced.

  When the interval between the upper clamping unit 4 and the lower clamping unit 5 is reduced, first, the first lower clamping unit 5a at one end of the lower clamping unit 5 contacts the lower surface of the upper flange 13a. Further, when the interval between the upper clamping portion 4 and the lower clamping portion 5 is reduced, the lower clamping portion 5 that has been stopped in the horizontal posture rotates around the pin 12 while being in contact with the lower surface of the upper flange 13a. The second lower holding part 5b comes into contact with the lower surface of the floor panel 14.

  As shown in FIG. 16, the first lower clamping portion 5a and the second lower clamping portion 5b are in tight contact with the lower surface of the upper flange 13a and the lower surface of the floor panel 14, and the bolt 9 is firmly tightened. The upper clamping part 4 is pressed against the bottom surface 2c of the large-diameter hole 2b, and the first lower clamping part 5a and the second lower clamping part 5b are pressed against the lower surface of the upper flange 13a and the lower surface of the floor panel 14.

  In this way, the beam 13 and the floor panel 14 which are the objects to be fixed 1 are sandwiched and fixed from above and below by the fixed hardware 11.

  Also in this embodiment, even if the thickness of the upper flange 13a is different, only the rotation angle of the lower clamping part 5 in the clamping state is different, and the first lower clamping part 5a and the second lower clamping part 5b are different. The lower flange of the upper flange 13a and the lower surface of the floor panel 14 are pressed against each other.

  Thereby, the lower clamping part 5 is press-clamped at two places on the upper flange 13a and the lower surface of the beam 13 and the lower surface of the floor panel 14 where the first lower clamping part 5a and the second lower clamping part 5b at both ends are fixed objects 1. Therefore, the number of fixing points on the lower surface side of the fixing object 1 is increased and the fixing object 1 is firmly fixed.

  In addition, even if vibration is applied to the fixed hardware 11, the lower clamping portion 5 is clamped by pressing at two locations, so that the clamping position is not easily displaced and stable fixing is possible.

  In addition, since the fixed hardware 11 of the present embodiment is configured to include the upper clamping portion 4 and the lower clamping portion 5 in the bolt 9 that constitutes the main body 3, the configuration is simplified and the hardware cost is reduced.

  Also in this embodiment, even if the interval between the upper clamping unit 4 and the lower clamping unit 5 is reduced by the operation of the telescopic function unit 6 (rotating operation of the bolt 9), the upper clamping unit 4 is moved to the lower surface of the head 9a. When pressed on the side, the positional relationship between the upper clamping portion 4 and the upper end of the bolt 9 (that is, the head portion 9a) does not change. Therefore, also in the present embodiment, the upper end of the bolt 9 (that is, the head 9a) does not move upward even if the bolt 9 is rotated to move the lower clamping part 4 upward, and the upper surface of the floor panel 14 is not moved. It becomes possible not to protrude to the side.

  By the way, the form which attaches the lower clamping part 5 to the main body 3 so that rotation is possible is not limited only to each above-mentioned embodiment, In short, the lower clamping part 5 stands upright along with respect to the main body 3. In other words, it may be any one that can be pivotally attached to the main body 3 so that the left and right balance is obtained in a tilted free state and the sideways posture is obtained.

  Further, the form of the main body 3 is not limited to that shown in each of the above-described embodiments, and may be of other forms.

In any of the embodiments, although not shown, a downward protrusion may be provided on the washer member 4a. When the downward projection is provided, the washer member 4a can be prevented from rotating in a plan view of the washer member 4a by biting into the bottom surface 2c of the large-diameter hole portion 2b, and can be strongly held by the bolt 9.
In the embodiment of the accompanying drawings, the fixing object 1 is described as an example of the beam 13 and the floor panel 14 placed on the beam 13. However, the fixing object 1 is not necessarily limited to this example. The roof base structure material may be used, and the fixing object 1 may be other various building members.

DESCRIPTION OF SYMBOLS 1 Fixing object 2 Hole 3 Main body 4 Upper clamping part 5 Lower clamping part 6 Telescopic function part 7 Metal base 8 Female thread part 9 Bolt 10 Rotation operation part 11 Fixed metal

Claims (3)

A body that is freely insertable from above into a hole that penetrates vertically in a fixed object;
And upper sandwiching portion for sandwiching from above the fixed target provided in the upper portion of the body,
A fixing hardware provided with a lower clamping portion for clamping from below the fixed target,
The fixed object is a beam having an upper flange and a floor panel placed on the upper flange,
The lower clamping portion is rotatable with respect to the main body , and has a standing posture that stands up along the main body and a horizontal posture in which the left and right balance is obtained in a collapsed free state. And both end portions of the lower holding portion in the lateral posture are respectively a first lower holding portion and a second lower holding portion,
The main body includes a telescopic function part that changes a distance between the upper holding part and the lower holding part in the lateral orientation by a rotation operation from above,
The lower clamping part, in front KiOkoshi standing posture, the first clamping portion is positioned above the second holding portion located below, in the upright position, through the vertically provided in the fixed target a projectable through the hole on the lower side of the fixed target and the while protruding to the lower side of the fixed target, stop I Do and the horizontal position is balanced in the right and left in a free state,
In the horizontal posture, the distance between the upper clamping portion and the lower clamping portion is reduced, and the first lower clamping portion first comes into contact with the lower surface of the upper flange portion and stops in the horizontal posture. Further, the lower sandwiching portion rotates and tilts, and the second lower sandwiching portion contacts the lower surface of the floor panel, so that the fixed object is the upper sandwiching portion, the first lower sandwiching portion, and the second lower sandwiching portion. A fixed hardware provided so as to be sandwiched between a clamping part. The main body is constituted by a vertically long metal base, and a bolt having a rotation operation part at the upper end is screwed to a female screw part provided on the upper part of the metal base, so that the upper end of the metal base is Protruding upwards,
The upper clamping part is interposed between the rotation operation part and the upper end of the metal base,
2. The fixed hardware according to claim 1, wherein the lower holding portion is rotatably attached to a lower end portion of the hardware base. The fixing hardware according to claim 1 or 2 is inserted from above into the hole provided in the fixing object in a state where the lower holding portion is erected so as to be along the main body. The holding part passes through the hole and protrudes to the lower side of the object to be fixed. With the protruding part to the lower side, the lower holding part is rotated so that the left and right balance can be obtained in a free state. In posture,
Next, by operating the telescopic mechanism part from above to reduce the distance between the upper clamping part and the lower clamping part, the fixed object is placed between the upper clamping part and the first lower clamping part. A method of holding a fixed object using a fixed hardware, characterized in that the holding object is sandwiched between the portion and the second lower holding portion.

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