JP4925254B2 - Connector - Google Patents

Description

  The present invention relates to a connector used when connecting concrete molds and other articles.

  The concrete formwork is formed by integrating a wooden formwork panel shown in FIG. 5 in which a plywood for concrete is used as a piling board and nailing a plurality of reinforcing wooden piers. The steel panel shown in FIG. 6 (hereinafter referred to as metal foam), and the plastic panel shown in FIGS. 7 and 8 formed by integrating or assembling the slats and ribs with plastic are used. (These are collectively referred to as formwork panels below.)

When assembling the concrete formwork, nails and metal fittings called P clamps shown in Patent Document 1 are mainly used to connect the wooden formwork panels, and metal fittings called U clips shown in FIG. 9 are used. It has been broken. Further, the U-clip similar to the metal foam, the clip shown in FIG. 10, or the clips or clamps as shown in Patent Document 2 to Patent Document 3 are used for connecting the plastic panels. Furthermore, the metal fittings shown in Patent Document 4 and Patent Document 5 are also used for connecting the plastic panels.
Japanese Utility Model Publication No.59-011549 Japanese Patent Laid-Open No. 11-117526 JP 2004-156281 A JP 2002-004578 A Japanese Patent Laid-Open No. 08-013792

  Conventional clips and clamps (hereinafter referred to as clips) partly protrude outside the crosspieces and ribs (hereinafter referred to as ribs) of the formwork panel 16, so that the outer cover 19 is removed. It was not possible to install it in the place where it hits. This state is shown in FIG. In addition, the position of the outer cover is generally arranged so that the interval between the lower portions is narrow in order to correspond to the lateral pressure of the concrete, and the interval is increased when it is in the upper portion, and the intervals are not necessarily equal. Therefore, although it is originally desirable to attach clips at equal intervals, there is a problem that it is difficult to attach them at equal intervals.

  The present invention provides a connector that solves such a problem, and the invention according to claim 1 is a basic shaft member having an axial notch at the other end of a shaft bar having a flange at one end. And a bending member having a flat plate portion that is substantially the same diameter as the shaft rod of the base shaft member and is inserted into the cut portion, and is unevenly distributed at one end of the flat plate portion of the bending member and is elongated in the axial direction. The long hole is inclined so that the distance from the flange of the base member increases from one end toward the center when the bending member is bent with respect to the base member, and at least near the center of the long hole. The hole end is extended in parallel with the axial direction, and a fixing pin is inserted into the long hole, and the bending member is slidably fixed to the cut portion of the base shaft member.

  According to the present invention having such a configuration, when assembling a formwork panel, the formwork panel can be easily and firmly tightened simply by being inserted into a conventional clip hole, bent and hammered. And it can be stored so that it may not protrude outside the rib etc. of a formwork panel like clips. Therefore, the formwork panels can be connected at a constant interval regardless of the position of the outer cover, and the accuracy and strength of the whole formwork can be improved.

Further, the position of the outer cover can be installed regardless of the attachment position of the connector of the present invention, and a sufficient formwork strength can be obtained.
In addition, although connection is possible also with a volt | bolt nut, it takes time and effort to attach and detach, and workability | operativity is not good.

The best mode for carrying out the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the connector 1 of the present invention includes a base shaft member 4 having an axial notch 3 at the other end of a shaft rod having a flange 2 at one end, and a shaft rod of the base shaft member 4. It is comprised from the bending member 6 which has the flat plate part 5 inserted in the said notch part 3 with the same diameter.

  First, the bending member 6 has a tapered shape as shown in FIG. The shape of the tapered portion 7 is preferably a trapezoidal cone. This facilitates the operation of inserting the connector of the present invention through the clip hole.

  The bending member 6 is unevenly distributed at one end of the flat plate portion 5 and has a long hole 8 in the axial direction. When the bending member 6 is bent with respect to the base shaft member 4, the long hole 8 is closer to the center. Accordingly, the base pin member 4 is formed so as to be inclined so that the gap between the base member 4 and the flange 2 is widened, and the fixing pin 9 is inserted into the elongated hole 8 through the fixing pin insertion hole 31 provided in the cut portion 3 of the base shaft member 4. The bending member 6 is caulked to be freely movable.

  A substantially triangular large chamfered portion 51 is provided at one corner of the flat plate portion 5 of the bending member 6. Thereby, the bending direction of the bending member 6 is limited to one direction. Moreover, you may provide the small chamfering part 52 in another corner. This is effective in avoiding the corners of the clip holes 17 of the connected member when the bending member 6 is bent, so that it can be easily bent.

  A long hole end parallel portion 81 parallel to the axis of the bending member 6 is provided at an end portion of the long hole 8 far from the tapered portion 7. By providing the portion 81 parallel to the axis, when the bending member 6 is bent upward, the bending member 6 naturally falls by the length of the parallel portion 81 and becomes independent. The hammering operation with a hammer or the like becomes easy.

  An end portion of the long hole 8 near the tapered portion 7 of the bending member 6 is slightly enlarged in a direction toward the flange 2 of the base shaft member 4 when the bending member 6 is bent, and a long hole concave portion 82 is provided. As a result, after the bending member 6 slides, the fixing pin 9 is accommodated in the recess 82, and the return preventing function of the bending member 6 works.

  Surfaces 32 parallel to the notch portion surface are provided on both outer sides of the notch portion 3 of the base shaft member 4, or a hole is formed in the portion where the head portion of the fixing pin 9 comes into contact with the head portion. As a result, the head of the fixing pin 9 does not protrude from the outer surface of the base shaft member 4, and the connecting / disconnecting operation of the connector of the present invention to the clip hole 17 of the formwork panel becomes easy.

  The base shaft member 4 is preferably cylindrical when the amount of material used is taken into account, but it can be solid when manufactured with a steel rod or the like.

  The shape of the flange 2 of the base shaft member 4 is preferably a circle in order to receive the load evenly. However, as shown in FIG. Good. Further, the collar 2 may be provided with a mark 22 such as a protrusion indicating the bending direction of the bending member 6.

  The bending member 6 can be entirely flat as shown in FIG. If the cross section perpendicular to the axis of the bending member 6 is rectangular and the long side of the rectangle is arranged to be perpendicular to the fixing pin 9, the distance in the direction perpendicular to the axis between the starting point and the ending point of the long hole is increased. Therefore, the moving distance of the bending member 6 can be increased, and the tightening force can be increased.

  As shown in FIG. 19, one or more long hole intermediate parallel portions 83 parallel to the shaft can be provided at the intermediate portion of the long hole 8 of the bending member 6 to provide a multi-stage tightening force.

  9 and 10 show conventional U clips C1 and C2.

Hereinafter, a method of using the connector of the present invention will be described using the method of using the plastic panel A (hereinafter referred to as a formwork panel) in FIG. 7 as an example.
When attaching the connecting tool of the present invention to the formwork panel 16, first, the base shaft member 4 and the bending member 6 are inserted into the clip hole 17 of the formwork panel in a state of extending almost straight. The state before this insertion is shown in FIG. 11 (a) (b), and the state after insertion is shown in FIG. 12 (a) (b). Next, as shown in FIGS. 13 (a) and 13 (b), the bending member 6 is normally bent upward substantially at a right angle. When bent, one side surface of the bending member 6 comes into contact with a rib or the like.

  Thereafter, the tip of the tapered portion 7 of the bending member 6 is beaten with a hammer or the like as shown in FIG. 13 (b), and the bending member 6 is slid along the long hole 8. At that time, since the long hole 8 is formed obliquely with respect to the axial direction of the bending member 6, the bending member 6 moves in the direction of the flange 2 of the base shaft member 4 simultaneously with the sliding. This state is shown in FIGS. In FIG. 14A, the dotted line indicates the position of the bending member 6 before sliding, and the solid line indicates the position of the bending member 6 after sliding. Due to this sliding movement, the distance between one side surface of the bending member 6 and the flange 2 of the base shaft member 4 is reduced, and a clamping force is applied to the ribs 18 of the mold panel 16 to firmly fix the mold panel 16. It becomes possible to connect.

  When removing the connector of the present invention, first, the opposite end of the tapered portion 7 of the bending member 6 is beaten with a hammer or the like as shown in FIG. Then, the bending member 6 slides away from the flange 2 of the base shaft member 4 from the solid line portion of FIG. After returning to the initial bending state shown in FIG. 13, the bending member 6 is extended so as to be substantially in line with the base shaft member 4 and removed from the clip hole 17 as shown in FIG. 12.

  When a conventional U clip or clamp is used for a floor formwork, it is used from the lower side to the upper side of the ribs 18 as shown in FIG. However, since the connector of the present invention does not come out of the clip hole, there is no risk of dropping. Reference numeral 100 is a large pull for supporting the floor formwork panel, and 101 indicates the same support.

  The scope of use of the connector of the present invention is not limited to the connection of formwork panels, but can be used to connect various objects such as a disk and a square bar as shown in FIG.

The perspective view which shows the coupling tool of this invention Perspective view of the same shaft member Perspective view of the bent member Slope view of the fixing pin Slope view showing wooden formwork panel Slope view showing metal foam Slope view A showing an example of plastic panel Slope view B showing an example of plastic panel Example of conventional U-clip Other examples of conventional U-clips Use explanatory drawing in the coupler of this invention Use explanatory drawing in the coupler of this invention Use explanatory drawing in the coupler of this invention Use explanatory drawing in the coupler of this invention Use explanatory drawing in the coupler of this invention The perspective view which assembled the formwork panel with the conventional U clip Assembly drawing of the same formwork panel The perspective view which shows the other Example in the coupler of this invention. The perspective view which shows the other Example in the bending member Example of connecting a disc and a square bar

DESCRIPTION OF SYMBOLS 1 Connecting tool 2 鍔 21 Planar knob part 22 Protrusion mark 3 Cutting part 31 Fixed pin insertion hole 32 Surface parallel to the cutting part surface 4 Base shaft member 5 Flat plate part 51 Large chamfered part 52 Small chamfered part 6 Folding Curved member 7 Tapered portion 8 Long hole 81 Long hole end parallel portion 82 Long hole concave portion 83 Long hole middle parallel portion 9 Fixing pin

Claims (1)

A base shaft member having an axial cut portion at the other end of a shaft rod having a flange at one end, and a bending member having a flat plate portion having substantially the same diameter as the shaft rod of the base shaft member and inserted into the cut portion. And has a long hole in the axial direction that is unevenly distributed at one end of the flat plate portion of the bending member, and the long hole is bent from the one end toward the center when the bending member is bent with respect to the base shaft member. Inclined so that the gap between the base shaft member and the flange increases , and at least the hole end near the center of the long hole extends in parallel with the axial direction, and a fixing pin is inserted into the long hole to cut the base member. A coupling tool, wherein a bending member is caulkingly fixed to a bayonet portion.