JP3042722U - Reinforcing metal fittings - Google Patents

Abstract

(57) [Summary] [Problem] Rather than being directly welded to reinforcing steel used in cast concrete, it can be fixed with screws, and also maintains a stable fixing state to the reinforcing steel, and can be used for various metal objects. It can be used in various ways. One side of each of two holding plates (2) having an arc-shaped cross section is pivotally supported by a pin (3) and connected to be openable and closable, and an extension piece (4) is provided on the other side of each holding plate (2). The extension pieces 4 are formed and the side fittings 5 are fixed to the side faces of the extension pieces 4. Female screws 6, 6 are screwed at the same positions of the extension pieces 4, 4, and the female screws 6, 6 are formed. By screwing the screw 7, the steel bar 8 was fixed to the two holding plates 2, 2 with the reinforcing bar 8 held therebetween.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a fixing member for a reinforced metal object used for fixing various metal objects for supporting a formwork of cast concrete to a reinforcing bar provided on a floor or the like.

[0002]

[Prior art]

 When placing concrete on the floor of a concrete building, it is necessary to support the concrete formwork at the boundary of the placing area. Therefore, in the past, the metal for supporting the formwork was directly welded to the rebar, but in recent years, due to metal fatigue at this weld, etc. Welding of hardware is now regulated.

[0003] Therefore, it has been practiced to tie a short rebar to this reinforcing bar with a numbering wire and the like and to weld a metal piece to this single rebar, but the work for that purpose is very troublesome and There was also a problem that the hardware could not be fixed sufficiently due to loosening of the metal.

In order to solve such a problem, conventionally, a concrete metal mold supporting metal fitting as shown in FIG. 7 has been devised. The metal fitting 21 has a support portion 23, into which an end portion of a push rod 22 for supporting the concrete formwork 20 is screwed, pivotally supported by a pin 24a on a main body frame 24, and is screwed into a bottom plate 24b of the main body frame 24. The L-shaped screw 25 is screwed in so that the curved surface of the reinforcing bar 26 inserted into the body frame 24 is tightened at the tip of the L-shaped screw 25.

[0005]

[Problems to be solved by the device]

 However, in such a conventional metal fitting 21, since the tip of the L-shaped screw 25 is fastened to the curved surface of the outer circumference of the reinforcing bar 26, there is a drawback in that it is in an unstable fixing state due to one-point support.

Further, the metal fitting 21 of FIG. 7 is a metal tool exclusively for a thrust bar that supports the concrete form 20 and has a drawback that it cannot be used for other metal objects.

The present invention has been made in view of the above circumstances, and can be fixed by screws instead of directly welding to the reinforcing bar used in the cast concrete, and a stable fixed state can be obtained with respect to the reinforcing bar. It is an object of the present invention to provide a metal fixture for a reinforced metal object that can be kept and can be used in various ways for various metal objects.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned object, the fixing metal fitting of the present invention is constructed such that two sides of two circular arc-shaped holding plates having cross-sections are pivotally supported by pins to be openably and closably connected to each other. By forming an extension piece on the other side of the plate and fixing an interposition metal fitting to the side surface of the extension piece, by screwing a female screw at the same position of each extension piece and tightening a screw on the female screw Therefore, the reinforcing bars are sandwiched between the two sandwiching plates and fixed.

In addition, the metal fitting may have an L-shaped cross section or a U-shaped cross section, and a nut or a rebar hardware may be fixed to the metal fitting.

Further, the interposition metal member may have an L-shaped cross section or a U-shaped cross section, and a nut or a reinforcing bar metal object may be rotatably joined to the interposition metal fitting by a pin.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a basic structure of a fixing member according to the present invention. FIG. 2 is a perspective view showing a state in which a long nut is welded to the fixture according to the present invention. FIG. 3 is a side view showing a state in which the fixing metal fitting of FIG. 2 is attached to a concrete formwork. FIG. 4 is a perspective view showing a state in which a long nut is rotatably connected to a fixing bracket according to the present invention with a pin. FIG. 5 is a perspective view showing a state in which a metal fitting for supporting a concrete formwork is fixedly mounted on the fixing metal fitting according to the present invention. FIG. 6 is a perspective view showing a state in which a metal fitting for supporting a concrete formwork is fixedly mounted on the fixing metal fitting according to the present invention.

A fixing member 1 shown in FIG. 1 shows a basic structure of the present invention, in which a curved pivotal support portion is provided on one side of each of the sandwiching plates 2 and 2 formed in a rectangular shape having two arc-shaped cross sections. 2a, 2a ... Are alternately formed and joined to each other by the pins 3, so that the sandwiching plates 2 and 2 are openably and closably connected, and the extension pieces 4 and 4 are formed on the other side of each sandwiching plate 2 and 2. A fitting 5 having an L-shaped cross section is fixed to the side surface of one extension piece 4 by welding or the like. Then, female screws 6 and 6 are screwed at the same positions of the respective extension pieces 4 and 4, and the screws 7 are fastened to the female screws 6 and 6 (the female thread 6 of the lower extension piece 4 is not visible). By inserting it, the two sandwiching plates 2 and 2 sandwiching the reinforcing bar 8 are firmly fixed. It should be noted that the female screw 6 is also preferably provided on the attachment fitting 5 at the same position as the female screw 6 of the extension piece 4.

With such a configuration, the fixing positions of the two sandwiching plates 2 and 2 are not only free in the longitudinal direction of the reinforcing bar 8 but also at a free angle with respect to the outer circumference of the reinforcing bar 8. Therefore, the angle of the hardware 10 attached by welding or the like via the attachment fitting 5 fixed to the extension piece 4 can also be freely adjusted.

Further, in the above-mentioned fixing metal fitting 1, the whole outer periphery of the reinforcing bar 8 is clamped by the two clamping plates 2 having an arc-shaped cross section, and the extension pieces 4 and 4 on both sides are fastened by the screws 7. The reinforcing bar 8 can be fixed very firmly and stably.

In the above-mentioned configuration, the two holding plates 2, 2 have an arc-shaped cross section, and when a reinforcing bar 8 having a predetermined diameter is sandwiched between them, a slight gap is formed between the extension pieces 4, 4 on both sides. It is desirable that the two sandwiching plates 2, 2 leave a room for fastening the reinforcing bar 8 with the screw 7 so as to be able to do so.

Further, as shown in FIG. 1, the fixing metal fitting 1 is fixed to the reinforcing bar 8 by forming a protrusion 12 by welding or the like at an appropriate position on the inner peripheral surface of each holding plate 2, 2. At this time, the respective protrusions 12 bite into the outer periphery of the reinforcing bar 8 and can be securely fixed. Further, when the reinforcing bar 8 is a deformed reinforcing bar, the reinforcing bar 8 is fixed so as to be scratched by the ribs or the bushes of the reinforcing bar 8, and a stronger fixed state is obtained.

The metal fitting 5 fixed to the extension piece 4 on one side of the fixing metal fitting 1 as described above may have an L-shaped cross section, or a metal fitting having a U-shaped cross section as shown in FIGS. . Further, the attachment fitting 5 may be formed of a square pipe-like fitting (not shown).

Further, the attachment piece 5 of FIG. 1 is fixed so that the rising piece 5 a thereof is located inside the extension piece 4, but the present invention is not limited to this, and the attachment piece 5 of the extension piece 4 is not limited to this. It may be located outside.

In any case, various attachment fittings 5 can be formed according to the usage status of the fixing fitting 1 of the present invention, and the fixing status can be changed according to the usage status.

A concrete example of the present invention will be sequentially described below. In the embodiment shown in FIG. 2, an attachment metal piece 5 having an L-shaped cross section is fixed on the surface of the extension piece 4 of the holding plates 2, 2 and the attachment metal 5 A long nut 9 is applied to the corner surface of the above and joined by welding 11. Various kinds of metal objects 10 such as a stick can be screwed onto the nut 9 for use.

The attachment piece 5 having an L-shaped cross section is fixed so that the rising piece 5 a is located inside the extension piece 4, but the rising piece 5 a is located outside the extension piece 4. Thus, the nut 9 may be welded to the outside of the rising piece 5a in an inclined shape. By doing so, it is possible to change and fix the tilt direction of the metal fitting 10 screwed onto the nut 9, and it is possible to mount the metal fitting 10 in a state of being tilted by a desired angle.

A concrete example of use of the fixing metal fitting 1 of FIG. 2 will be described. As shown in FIG. 3, the fixing metal fitting 1 is fitted on the outer periphery of the reinforcing bar 8 to attach the screw 7 to the extension pieces 4, 4 and the attachment metal fitting 5. The fixing metal fitting 1 is connected to the reinforcing bar 8 by tightening the female screw 6 of the above, and the metal fitting (bar member) 10 is screwed to the nut 9 fixed to the attachment metal fitting 5 of the fixing metal fitting 1.

A support plate 14 having an L-shaped cross section is fixed to the outer surface of the concrete formwork 13, and a nut 14a fixed to the horizontal portion of the support plate 14 has a flat protrusion 16c formed at the upper end. The reverse threaded rod 16 of the scale is screwed in, and the lower threaded portion 16b which is a reverse thread to the upper threaded portion 16a of the reverse threaded rod 16 is screwed into the long nut 17 which is erected on the washer 17a. The height of the concrete formwork 13 is changed by fitting and rotating a flat wrench 16c on the upper end of the reverse screw rod 16 with a spanner or the like.

Then, a short bolt 18 is inserted from the outside of a through hole 18a formed above the mating surface of the concrete formwork 13 and the support plate 14 and fastened with a long nut 19, and this nut is By inserting the male screw 10a at the tip of the above-mentioned metal object (bar member) 10 into the extra length portion of the female screw of 19, the concrete formwork 13 as shown in FIG. 3 can be supported.

In the specific example shown in FIG. 4, the web 5b of the metal fitting 5 having a U-shaped cross section is fixed on the surface of the extension piece 4 of the holding plates 2 and 2 so that the web 5b is located outside the extension piece 4, and A long nut 9 is rotatably joined to an upper surface 5c of the metal fitting 5 with a pin 9a.

Further, the nut 9 may be rotatably joined to the upper surface 5c of the attachment fitting 5 with the pin 9a. By doing so, the nut 9 can be freely rotated to a desired angle and the nut 9 can be freely rotated. It is possible to adjust the metal fitting 10 screwed to the screw 9 to a desired angle.

As shown in FIG. 4, when the extension piece 4 of the fixing metal fitting 1 is horizontally fixed to the floor surface and fixed to the reinforcing bar 8, the upper surface 5c of the attachment metal fitting 5 is also horizontal to the floor surface and the nut 9 is Although facing the horizontal direction, loosening the screw 7 and rotating the extension pieces 4 and 4 vertically to the floor surface to tighten the screw 7, the upper surface of the attachment 5 also becomes vertical to the floor surface. The nut 9 can adjust its inclination in a vertical plane.

Further, the inclination of the extension pieces 4 and 4 with respect to the floor surface can be set at a free angle with respect to the outer peripheral direction of the reinforcing bar 8 as described above, and the nut 9 can be freely rotated by the pin 9a. In consideration of the fact that the nut 9 can be rotated, the nut 9 can be directed at all angles.

In the specific example shown in FIG. 5, a metal fitting 5 having a U-shaped cross section is fixed on the surface of the extension piece 4 of the holding plates 2 and 2 by welding or the like, and a metal object such as a stick is attached to the upper surface of the metal fitting 5. 10 is joined by welding 11.

FIG. 5 shows the case where the extension pieces 4 and 4 are fixed horizontally to the floor surface as described above, and the extension pieces 4 and 4 are fixed vertically to the floor surface. Alternatively, it is possible to adjust the hardware 10 to a desired angle by tilting it at a free angle.

In the concrete example shown in FIG. 6, the web 5b of the attachment fitting 5 having a U-shaped cross section is fixed on the surface of the extension piece 4 of the holding plates 2 and 2 so that the web 5b is located outside the extension piece 4, and the attachment piece 4 is attached. The metal 10 is welded to the outer side surface of the metal fitting 5 so as to be inclined.

Further, instead of the metal piece 10, the nut 9 may be fixed to the outer surface of the attachment fitting 5 by welding or the like at a desired angle.

In addition, in the above-mentioned embodiment, as the metal fitting 10 fixed to the attachment fitting 5, in addition to the bar member used as the support fitting of the concrete form as shown in FIG. 3, the nut 9 shown in FIG. By welding all the metal objects to be fixed to the reinforcing bar 8 to the metal fitting 5 or by connecting them with a pin or the like, it becomes possible to apply to a wide range of metal fittings.

[0035]

[Effect of the invention]

 As described above, according to the reinforcing metal fixture of the present invention, the length of the reinforcing bar is fixed by fixing the extension pieces of the sandwich plate with screws instead of directly welding to the reinforcing bar used for the building frame. Not only the direction but also the outer circumference of the rebar can be easily fixed at any angle. Moreover, since the entire outer circumference of the reinforcing bar can be clamped by the two clamping plates, a stable fixed state can be maintained, an appropriate metal fitting can be fixed, and various metal objects can be fixed to this metal object by welding or the like. Alternatively, they can be joined with a pin or the like.

Further, the nut or the metal object can be oriented in all directions by rotatably pin-attaching the nut or the metal object to the fitting of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a basic structure of a fixing member according to the present invention.

FIG. 2 is a perspective view showing a state in which a long nut is welded to a fixing member according to the present invention.

FIG. 3 is a side view showing a state where the fixing fitting of FIG. 2 is attached to a concrete formwork.

FIG. 4 is a perspective view showing a state in which a long nut is rotatably connected to a fixing member according to the present invention with a pin.

FIG. 5 is a perspective view showing a state in which a metal fitting for supporting a concrete formwork is fixedly mounted on the fixing metal fitting according to the present invention.

FIG. 6 is a perspective view showing a state in which a metal fixture for supporting a concrete formwork is fixedly mounted on the fixing metal fixture according to the present invention.

FIG. 7 is a side view of a conventional bracket for supporting a concrete formwork.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 ... Fixing bracket 2 ... Clamping plate 3 ... Pivot part 4 ... Extension piece 5 ... Attachment metal fitting 5a ... L-section cross-section attachment fitting start-up piece 5b ... ... Female screw 7 ... Screw 8 ... Reinforcing bar 9 ... Nut 10 ... Hardware 11 ... Welding 12 ... Protrusion

Claims (3)

[Utility model registration claims] 1. One side of each of two holding plates having an arc-shaped cross section is pivotally supported by a pin and connected to be openable and closable, and an extension piece is formed on the other side of each holding plate. A female screw is screwed into the same portion of each extension piece and a screw is screwed into the female screw, so that a reinforcing bar is sandwiched between the two holding plates. A metal fitting for fixing a reinforcing bar, wherein the metal fitting is fixed. 2. The metal fitting for fixing a reinforcing metal according to claim 1, wherein said metal fitting has an L-shaped cross section or a U-shaped cross-section, and a nut or a reinforcing metal is fixed to said metal fitting. 3. The fixing of a reinforcing metal bar according to claim 1, wherein said metal fitting has an L-shaped cross section or a U-shaped cross section, and a nut or a reinforcing metal metal is rotatably joined to said mounting metal with a pin. Metal fittings.