JP4938808B2 - Support installation hardware - Google Patents

Description

  The present invention relates to a support installation hardware capable of easily and reliably performing, for example, an operation of installing a column for supporting a beam form frame from a floor surface on a lower surface of an end thick member of the beam form frame.

  For example, in order to construct a beam with concrete, a bottom plate and this side plate are closely fixed by a nail through a crosspiece, a beam form frame is assembled, a thick end material is arranged between the side plates on the lower surface of the bottom plate, and an end Another end thick material (hereinafter referred to as a dragonfly end thickness) is arranged on the lower surface of the thick material so as to be orthogonal to the end thick material, and a support (hereinafter referred to as a dragonfly end thickness) between the lower surface of the dragonfly end thickness and the floor surface. This is called a support, and the beam form frame is stably supported horizontally, for example, and concrete is placed in the beam frame.

  The thick end material is fixed to the side plate of the beam form frame by a nail or the like, and the end mark material is fixed to the support by a nail or the like. The support is, for example, a double cylindrical column, an operation unit for adjusting the length (height) of the column by adjusting the fitting amount of the inner and outer cylinders at an intermediate position in the axial direction, and, for example, squares at both ends of the column. And a flat portion. The flat portion is formed with a hole for driving a nail into the end of the register mark at the four corners, and a hole communicating with the column at the center.

  By adjusting the height of the support, the upper and lower flat surfaces are in contact with and interposed between the floor surface on which the support is disposed and the lower surface of the end of the register mark. By interposing the support, for example, the formwork can be stably supported horizontally, and the beam formwork is not bent or dropped by its own weight together with the concrete before being hardened after placing.

  In order to install the support, the support is arranged on the bottom surface at a predetermined position around the edge of the register mark, and the operator supports it with one hand so as not to tilt or move in the horizontal direction, for example. The height of the support is adjusted by extending the column upwards by hand. The following Patent Documents 1 and 2 are known as hardware used in such a support installation process.

Design Registration No. 1101557 JP 2007-255031 A

  Patent Document 1 shows a reverse-convex-shaped metal piece, which is inserted into a hole communicating with the support column formed in a portion corresponding to the reverse-convex-shaped horizontal short side portion. An insertion portion, a hole for fixing with a nail to a crosspiece formed at both ends of an orthogonal side portion with respect to a horizontal long side portion, and a support portion for supporting a dragonfly end thickness formed between these orthogonal side portions, It is the structure which it had.

  On the other hand, Patent Document 2 shows a first hardware for supporting a register mark end thickness on a support, and a second hardware for fixing the support to a pier via the register mark end thickness. The first hardware is formed between the insertion portion inserted into the hole communicating from the support column formed in the portion corresponding to the reverse convex-shaped horizontal short side portion and the orthogonal side portion with respect to the horizontal long side portion. And a support portion that supports the end marks of the register marks.

  In the second hardware in Patent Document 2, for example, the upper end portion in the front view is a front side, the lower end portion is a Z-shape viewed from the side, and the bottom end is thickened at the center of the width of the lower end portion. It is set as the structure in which the insertion part in which is inserted was formed.

  However, when the first hardware of Patent Document 1 and Patent Document 2 is arranged on the lower surface of the register mark end with the support shortened, the orthogonal side portion of the support part of the metal object becomes the register mark end thick (beam formwork). Not reached.

  Therefore, even if the hardware of Patent Documents 1 and 2 is used, attention should be paid to tilting of the support, that is, horizontal movement until the length (height) reaching the bottom surface and bottom surface of the end of the register mark is adjusted. And the support struts must be extended upwards, which is very laborious.

  The problem to be solved is that even if the conventional hardware of Patent Documents 1 and 2 is used, when the support is interposed between the bottom surface of the register mark end and the floor surface, the operator is prevented from tilting. The height adjustment of the support and the height adjustment of the support must be extended upward from the bottom surface, which is very troublesome.

  The support installation hardware of the present invention includes a plate-shaped substrate, an insertion hole formed in the substrate, and an insertion hole for inserting a thick end material, and is continuous with the insertion hole so as to cut out a part of the outer shape of the substrate. The insertion port is formed as a part of the shape of the insertion hole from the base end of the hook through the insertion port. The main feature is that it has a guide portion and a fixing portion formed continuously with the insertion hole at the end of the guide portion opposite to the hooking portion.

  In the present invention, even if the support is shortened, the hole of the support can be hooked on the hook portion, so that the support does not tilt in the horizontal direction. When the support is hooked on the hook and then rotated around the hook, the guide is guided from the insertion port to the insertion hole by the guide, and at this time, the registration mark end thick (end thick material) is brought to a predetermined position in the insertion hole. The support is also fixed by the fixing part.

  Accordingly, the present invention reliably prevents the tilting of the support when the support is interposed between the bottom surface of the register mark and the floor surface. Only the height of the support needs to be adjusted, and the labor is greatly reduced. Further, since the support is in a state (hanging) that is hooked to the beam form frame side through the support installation hardware of the present invention, it is easy in that the height adjustment may be extended toward the floor surface.

FIG. 1 is a view showing a beam form frame (a) and a support (b) using the support installation hardware of the present invention. FIG. 2 is a diagram showing a state in which a register mark end thickness is inserted in the usage state of the support installation hardware of the present invention. FIG. 3 is a view showing a state in which the support is hooked in the usage state of the support installation hardware of the present invention. FIG. 4 is a view showing a state in which the support is rotated in the usage situation of the support installation hardware of the present invention. FIG. 5 is a view showing a state in which the support and the registration mark edge are accommodated in the usage state of the support installation hardware of the present invention.

  According to the present invention, the support is interposed between the bottom surface and the floor surface of the end of the dragonfly to save the labor of supporting the support so as not to tilt until the support is extended to support the load of the beam formwork. This is achieved by a configuration in which the support is hooked to the hook part of the support installation hardware attached to the beam formwork side.

  A support installation hardware (hereinafter referred to as “installation hardware”) of the present invention will be described with reference to FIGS. Before describing the installation hardware of the present invention, first, the configuration of the beam formwork 21 and the support 11 will be described.

  The beam formwork 21 will be described. The beam form frame 21 is constructed from a bottom plate 22 and side plates 23 which are brought into close contact with both ends of the bottom plate 22 beyond the back surface of the bottom plate 22. In this example, a crosspiece 24 is disposed inside the side plate 23, that is, at a corner portion formed by the bottom plate 22 and the side plate 23, so that the bottom plate 22 is horizontal and, for example, a nail (not so (Shown).

  A prismatic end thick member 25 is disposed in the middle of the bottom surface of the bottom plate 22 where the crosspiece 24 is not provided in the beam formwork 21. A registration mark end thickness P is arranged on the lower surface of the end thick material 25 so as to be orthogonal to the end thickness material 25, and a support 11 is provided between the lower surface of the registration mark end thickness P and the floor surface. The registration mark end P and the support 11 support the entire beam form 21 so that the bottom plate 22 does not bend due to its own weight or concrete placement.

  The support 11 will be described. The support 11 in this example includes a support column 12 in which an inner cylinder 12A is fitted to an outer cylinder 12B and can be expanded and contracted. The inner cylinder 12A is formed with a pair of adjustment holes 12Aa formed in a diametrical direction at a predetermined interval from the fitting end to the outer cylinder 12B toward the opposite end. The outer cylinder 12B has a pin insertion hole 12Ba formed in a pair in the diameter direction at an end portion into which the inner cylinder 12A is fitted.

  Further, the end of the outer cylinder 12B that fits the inner cylinder 12A passes through the pin insertion hole 12Ba of the outer cylinder 12B and the adjustment hole 12Aa of the inner cylinder 12A, which are positioned so as to communicate with each other. A fixing pin 13a is provided. The operation portion 13 is configured by the adjustment hole 12Aa of the inner cylinder 12A, the pin insertion hole 12Ba of the outer cylinder 12B, and the pin 13a.

  Furthermore, the both ends of the support | pillar 12, ie, the edge part opposite to the edge part which the inner cylinder 12A and the outer cylinder 12B mutually fit, have the flat part 14. FIG. The flat portion 14 is formed with holes 14a at four corners and a center hole 14b communicating with the support column 12 at the center.

  Next, the support 11 for supporting the beam casting formwork 21 for placing the concrete through the end thick material 25 and, in this example, the registration mark end thick P will be described with reference to the installation hardware 1. The installation hardware 1 is made of a single metal, and in the present example, for example, a substantially square plate-like substrate 1A is integrally formed with the following configuration.

  In the substrate 1A, an insertion hole 1B for inserting a registration mark end thick P is formed in a portion close to a predetermined side of the outer shape of the substrate 1A. The insertion hole 1 </ b> B has an upper side dimension substantially the same as the upper side dimension of the cross-sectional outer shape of the registration mark end thick P.

  Two holes 1a for driving nails or the like into the side plate 23 are provided at the same horizontal height at the upper portion of the portion of the substrate 1A where the insertion hole 1B is formed. Further, reinforcing ribs 1b having an appropriate shape are provided at locations other than the insertion hole 1B of the substrate 1A. In this example, the rib 1b is convex on the front and back surfaces of the substrate 1A.

  Further, the insertion hole 1B is opened by cutting one side out of both sides, and the insertion hole 1C into which the flat portion 14 of the support 11 is inserted at the time of rotation described later is the insertion hole 1B. It is formed continuously. Further, the insertion hole 1B is formed with a guide portion 1D having a gradually increasing slope from the insertion port 1C side on the lower side.

  The insertion port 1C is configured by a lower end of an open side (hereinafter referred to as an open side) of both sides of the insertion hole 1B and a lower side constituting the guide portion 1B, and a gradient of the guide portion 1D. Although it depends, it is set as the dimension of 2 to 3 times the thickness of the flat part 14 of the support 11 at least.

  Further, the lower side of the insertion hole 1B constituting the guide part 1D protrudes outward from the open side, and a hooking part for hooking the hole 14a in the flat part 14 of the support 11 outside the protruding part, that is, the insertion port 1C. 1E is formed to extend upward continuously from the guide portion 1D.

  The height of the hooking portion 1E is set to such a height that the flat portion 14 does not come out of the hooking portion 1E even when the support 11 is rotated and the flat portion 14 is guided to the end by the guide portion 1D. .

  The guide portion 1D extends from the base end portion of the hook portion 1E beyond the side opposite to the open side (hereinafter referred to as the anti-open side) and the lower side of the insertion hole 1B and a part of the fixing portion 1F (described later). The lower edge is formed with an ascending slope from the base end toward the anti-open edge.

  Further, in this example, a step portion 1Da and a step portion 1Db are formed in the guide portion 1D at a part in the middle of the slope of the climb, that is, a part near the open side and a part near the anti-open side.

  Further, a fixing portion 1F that fixes the flat portion 14 of the support 11 in the vertical direction with this portion as a lower side is provided at a portion of the guide portion 1D beyond the opposite opening side of the insertion hole 1B. It is formed continuously.

  Next, the procedure for supporting the beam form 21 by the support 11 using the installation hardware 1 of the present invention will be described. In addition, in this description, it demonstrates from the state which has already arrange | positioned the end thick material 25 in the beam formwork 21. FIG. The installation hardware 1 is attached by driving a nail or the like into the side plate 23 (via the pier 24) from the outside of the side plate 23 shown in FIG.

  At this time, the installation hardware 1 is such that the upper side of the insertion hole 1B is parallel to the bottom plate 22, for example, and the upper side of the insertion hole 1B is the same height as the lower edge of the side plate 23 (and the crosspiece 24 and the end thick member 25). It attaches to the side plate 23 so that it may become.

  Then, as shown in FIG. 2, the registration mark end thickness P is inserted into the insertion hole 1B. At this time, the lower side portion of the registration mark end thickness P comes into contact with the step portion 1Da of the guide portion 1D. Further, the upper side portion of the registration mark end thickness P is not yet in contact with the upper side portion of the insertion hole 1B at this stage.

  After inserting the registration mark end thickness P into the insertion hole 1B, the hole 14a in the flat portion 14 of the support 11 is hooked to the hooking portion 1E of the installation hardware 1 as shown in FIG. At this time, the lower surface of the flat portion 14 comes into contact with the stepped portion 1Da of the guide portion 1D and stably supports the hooked state.

  If the support 11 is hooked on the hooking portion 1E in this manner, the support 11 will not tilt in the subsequent work, so that it is possible to save the trouble of supporting the support 11 by hand until the support 11 is extended as in the prior art.

  Next, as shown in FIG. 4, the support 11 is rotated around the hole 14a in the flat portion 14 in a state of being hooked on the hook portion 1E. At this time, the lower surface of the flat portion 14 is guided by the gradient of the guide portion 1D (between the step portion 1Da and the step portion 1Db), and the support 11 is inserted with the registration mark end thickness P on the upper surface of the flat portion 14. It will be pushed upward in 1B.

  Then, the support 11 is guided to the gradient of the guide portion 1D by the rotation of the support 11, and when the lower surface of the flat portion 14 reaches the step portion 1Db, the state becomes stable again. In other words, the stepped portion 1Da and the stepped portion 1Db have a function of stabilizing the support 11 at important points in the work of hooking the support 11 on the hooking portion 1E.

  The step portion 1Da stabilizes the support 11 immediately after the support 11 is hooked on the hook portion 1E and before the rotation. Further, the step portion 1Db stabilizes the support 11 immediately before the support 11 is inserted into the fixing portion 1F and the register mark end P is pushed up so as to contact the upper side of the insertion hole 1B. By providing the step portion 1Da and the step portion 1Db, for example, the support 11 does not reversely rotate, and the work can be performed while being separated at important points.

  As shown in FIG. 5, when the support 11 is further rotated from the state of FIG. 4, the side of the flat part 14 that faces the side of the side where the hole 14 a hooked to the hook part 1 </ b> E is formed becomes the fixed part. Reach 1F. When the flat portion 14 reaches the fixed portion 1F, the flat portion 14 comes into contact with the upper side of the fixed portion 1F and no further tilting is allowed, so that the flat portion 14 is arranged in a horizontal state.

  At this time, the upper side of the registration mark end thickness P comes into contact with the upper side of the insertion hole 1B. In this state, the registration mark end thickness P is arranged so that the bottom plate 22 through the crosspiece 24 and the end thick material 25 of the beam form frame 21 is in a predetermined arrangement state (for example, horizontal in this example). The support 11 is already installed so as not to tilt in the horizontal direction when it is hooked on the hook 1E (FIG. 3).

  After the above operation, the operator completely releases his hand from the vicinity of the register mark end thickness P of the support 11 and shifts to the expansion operation by the operation unit 13 this time. Conventionally, since the support 11 may be tilted horizontally when performing the extension operation by the operation unit 13, the support unit 11 is supported from the periphery of the registration mark end thickness P by one hand and the operation unit 13 by the other hand. Had to operate.

  In contrast to the conventional case, when the installation hardware 1 of the present invention is used, as described above, the operator completely releases his hand from the periphery of the registration mark edge P of the support 11 and is positioned at the temporary height by the operation unit 13. The pin 13a inserted into the adjustment hole 12Aa and the pin insertion hole 12Ba is pulled out, and the inner cylinder 12 and the outer cylinder 12B are extended to a height at which the load of the beam form frame 21 is received. Since an extension operation such as inserting the pin insertion hole 12Ba can be performed, labor is greatly saved.

  Conventionally, the support 11 has been installed on the bottom surface, and it has been necessary to extend the support column 12 upward in order to adjust the height. In contrast to such a conventional case, when the installation hardware 1 of the present invention is used, it is installed on the beam form 21 side, and the column 12 may be extended downward for height adjustment. That is, if the pin 13a of the operation unit 13 is removed, the outer cylinder 12B can be extended to the bottom by its own weight, and the work is simplified.

DESCRIPTION OF SYMBOLS 1 (Support) installation hardware 2 Board | substrate 1B Insertion hole 1C Insertion slot 1D Guide part 1Da, 1Db Step part 1E Hook part 1F Fixing part 11 Support 13 Operation part 14 Flat part 14a Hole 21 Beam form frame 22 Bottom plate 23 Side plate P Dragonfly end thick

Claims (2)

  It is a hardware for installing a support for supporting a formwork for placing concrete via a thick end material, a plate-shaped substrate, and an insertion hole for inserting the thick end material formed on this substrate The insertion hole formed so as to be continuous with the insertion hole and cut out a part of the outer shape of the substrate, a hook portion formed outside the insertion port, and a base end portion of the hook portion. A guide part formed with an ascending slope as a part of the shape of the insertion hole through the insertion port, and a fixing part formed continuously with the insertion hole at the end of the guide part opposite to the hooking part And a support installation hardware characterized by comprising:   The support installation hardware according to claim 1, wherein a step portion is formed in the guide portion.

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