JP2019100086A - Connection fixing fitting for separator shaft - Google Patents

Abstract

To provide support hardware for supporting a concrete form to be assembled on a construction site and a civil engineering site where concrete is installed.SOLUTION: A connection fixing fitting for separator shaft comprises a separator shaft adjusting fitting and a separator shaft connection fitting. In the separator shaft adjusting fitting, an open hole and a spiral projection is formed, and a female screw hole is formed so as to penetrate from the central part of the top face to the open hole in the vertical lower direction, and a fastening screw is screwed to the female screw hole for connection. In the fastening screw, the tip of the end to be screwed to the female screw is projected and the bottom of the end in the fastening screw is recessed in a cone shape.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a separator shaft fitting for supporting a formwork panel for molding concrete to be assembled and constructed at a construction site or a civil engineering site where concrete is cast.

As a foundation in the field of construction and civil engineering, a concrete foundation based on rebar is used. In the construction of such a concrete foundation, the distance between the formwork panel and the formwork panel is maintained at a constant distance according to the site, and the distance is fixed by the separator shaft. Next, concrete is poured between the formwork panel and the formwork panel to be solidified, and the step of disassembling the formwork panel at a stage where the concrete has a sufficient strength is taken to build up a concrete foundation.

Also, the thickness of such a concrete foundation is not constant, for example, in the case of a wall having a non-uniform thickness in cross section such as increasing in thickness from high to low, the length of the separator shaft used Changes according to the height from the ground, so separator shafts of various lengths are required. However, the length of the separator shaft is not so varied as to correspond to it, and often it can not be used if the length is different by 5 mm. In such a case, at each connection point between both formwork panels It is very difficult to obtain the exact length required for the separator axis on the drawing, and most of the time, the length is adjusted at each site. Therefore, generally, one end of a slightly longer separator shaft is connected to both formwork panels, and the other end of each separator axis is overlapped in parallel in the middle of both formwork panels, and welding or A construction method is used that uses a fitting to keep both formwork panels at the desired distance.

As a prior art of these construction methods, a technique is disclosed that can easily adjust the necessary dimensions of two separator shafts used in construction, and further reduce the time and the number of days required for the adjustment (Patent Document 1) ). In addition, as another example used in the field, a hole is formed in the main body of the joint fitting so that two separator shafts can be passed at a slight distance, and tightening is performed in the direction intersecting this hole A separator fitting with attached members is disclosed. In this type of connection fitting, two separator shafts are simultaneously inserted into one through hole of the main body, and the two separator shafts are adjusted to the desired length while appropriately adjusting back and forth, and then the tightening member is A separator shaft is tightened and connected by tightening a weir between two separator shafts with a bolt so as to cross the two separator shafts in the longitudinal direction.

Japanese Utility Model Application Publication No. 05-062654

However, in the technical content described in Patent Document 1, although two separator shafts can be connected, the through holes for passing the separator shafts in order to obtain connection strength are as large as the diameter of the main body of the separator shafts. It is. Therefore, since the male screw at the end of the separator shaft is larger in circumference than the main body, the separator shaft having the male screw formed at the end can not be passed through the through hole as it is. It is necessary to cut off the external thread and it takes time and effort. In addition, it is necessary to provide two screw parts for fixing the separator shaft in order to obtain sufficient tensile strength at the time of casting concrete, and the exposed part of the screw part is obstructive also at the time of concrete casting As a result, there is a possibility that the connection of the concrete casting site without a thickness and the list connection of the formwork panel may affect the thickness securing of the concrete to such an extent that no cracks occur and it does not peel off. Furthermore, although the separator shaft coupling metal of the type in which two separator shafts are connected through the above-mentioned one hole can connect two left and right separator shafts, the workability at the time of connecting the separator shafts becomes a problem. In some cases. For example, while simultaneously passing the two left and right separator shafts in one hole alternately in the center of both formwork panels, simultaneously adjusting the lengths of the two separator shafts simultaneously handles two long separator shafts. become. Thereafter, since the separator shaft is tightened and connected by vertically tightening the wedge with the bolt in a form in which the tightening member is crossed between the two separator shafts, the vertical direction after the tightening is applied to the main body portion There is an exposed part of the bolt, and the exposed part of the bolt becomes an obstacle at the time of concrete placing, and there is no crack in the connection of the concrete placing site without thickness and the connection of the formwork panel. It may be a hindrance to securing the thickness of concrete. In addition, the size of one through hole of the main body through which two separator shafts are inserted is narrow, and it is difficult to pass the male screw portion of the end larger in circumference than the separator shaft main portion through one through hole as it is At the time of construction, it takes time, for example, to cut off the male screw portion at the end of the separator shaft, and the work in a narrow place is very inefficient and takes time. Furthermore, in a common separator shaft joint metal fitting, two separator shafts can not be temporarily fixed, and when tightening and fixing, the separator shaft moves during the tightening operation and maintains a desired length. It can be difficult. Also, the conventional product has a structure in which two are simultaneously fixed and fully tightened, and after the full tightening, the separator shaft can not be temporarily fixed because it can not be loosened and is difficult to reuse. Because it is difficult to simultaneously adjust the two left and right separator shafts to the correct length, it takes time to work, and if you make a mistake in adjusting the length, all the members that used the two left and right separator shafts and the connecting fittings are reused The cost may be high because it can not be done.

Therefore, the main object of the present invention is to easily insert the through hole of the separator shaft adjustment fitting in a state in which an external thread is kept at the end of the separator shaft when assembling a mold panel for molding concrete. Thus, temporary fixing can be made several times, and it can be easily adjusted to obtain a desired length, which enables reuse. In addition, the compact design has been achieved without any hindrance to securing the thickness of concrete without the exposed part of the tightening screw being in the way when placing concrete. An object of the present invention is to provide a separator shaft connection fixing fitting which is an unprecedented new connection method which has connection strength equal to or higher than conventional products and which can contribute to shortening of construction time and material cost reduction.

The present invention relates to the following (1) to (6).
(1) A separator shaft connection fixing bracket including a separator shaft adjustment bracket and a separator shaft connection bracket, wherein a through hole is formed in the separator shaft adjustment bracket, and a spiral projection is formed in the through hole; The inner diameter of the through hole is such a size that the male screw at the end of the adjustment separator shaft used in construction can be freely moved back and forth, and the separator shaft adjustment bracket has a vertical bottom from the center of the upper surface A female screw hole is formed so as to penetrate in the direction to the through hole, and a screw screw for stopping the movement of the adjustment separator shaft inserted in the through hole is screwed and connected to the female screw hole. The set screw has a tip in which the end of the end to be screwed into the female screw protrudes, and the bottom of the end of the tightening screw is recessed in a mortar shape, and the separator shaft connection fitting forms a through hole At least the through hole A female screw is formed in the part, and the side surfaces of the separator shaft connection metal fitting and the separator shaft adjustment metal fitting are aligned and connected, and the side surfaces of the separator shaft connection metal fitting and the separator shaft adjustment metal fitting are connected and connected Separator shaft connection fixing bracket.
(2) The separator shaft connection metal fitting is a screw-less hole having a size such that a through hole is formed, and the inner diameter of the left and right end portions of the through hole is as it is. The unthreaded hole of the through hole forms a hole of such a depth that the neck portion of the separator shaft between the male screw and the separator shaft main portion enters, and the center portion of the through hole is the separator shaft end portion The separator shaft connecting and fixing bracket according to the above (1), characterized in that a female screw for screwing and fixing the male screw of the above is formed.
(3) A separator shaft connecting fixture comprising a separator shaft adjusting bracket and an anchor separator shaft, wherein a through hole is formed in the separator shaft adjusting bracket, a helical protrusion is formed in the through hole, and the through hole is formed. The inner diameter of this is a size that can be freely moved back and forth by inserting the male screw of the adjustment separator shaft end used in construction, and in the separator shaft adjustment bracket, from the center of the top to the vertical downward direction A female screw hole is formed so as to penetrate to the through hole, and a tightening screw for stopping movement of the adjustment separator shaft inserted in the through hole is screwed and connected to the female screw hole, and the tightening screw Has a protrusion at the end to be screwed into the female screw, and the bottom of the end of the tightening screw is recessed in a mortar shape (the tightening screw is penetrated during installation) Adjustment separation inserted in hole high nut The motor shaft is fixed against the screw tip portion from the top,)
A separator shaft connecting fixture according to claim 1, wherein the anchor separator shaft is provided with a male screw at one end, and the side surface of the other end of the anchor separator shaft is connected to the bottom surface of the separator shaft adjusting bracket.
(4) The separator shaft connection fixing bracket according to any one of (1) to (3), wherein the tightening screw is a hexagonal socket set screw.
(5) The outer surface of the projecting portion of the end portion of the tightening screw to be screwed into the female screw through hole of the tightening screw is provided with a jagged surface, any one of (1) to (4). Separator shaft connection fixing bracket as described in 3.
(6) A substantially conical pointed end portion is provided in a mortar-like central portion of a bottom portion of a projection bottom portion of an end portion of the end portion of the tightening screw to be screwed into the female screw through hole of the tightening screw. The separator shaft connection fixing bracket according to any one of (5).

According to the first aspect of the present invention, when the separator shaft is fixed by the tightening screw, the tip of the tightening screw has a projecting structure and the bottom portion is in a mortar shape, thereby biting into the separator shaft and fixing firmly. It is possible to Further, by providing a helical projection in the through hole of the separator shaft adjustment fitting, a stronger fixing force can be realized. Due to the synergetic effect of the tip shape of these tightening screws and the shape of the through hole, when inserting the adjustment separator shaft into the through hole, only one adjustment separator shaft in one state, without cutting the male screw part, The connection screw can also be connected and fixed, and furthermore, a temporary fixing can be made several times, and it can be easily adjusted to obtain a desired length and can be reused. As described above, with the new method of use and connection method that has never been available, connection of both separator axes is easy, and it is possible to solve problems, reduce material costs, and improve work efficiency. It becomes possible to provide a connection fixing bracket.

According to the second invention of the present application, it is possible to prevent the neck portion which is recessed and thinned as a screw from the external thread on the end of the separator shaft end and is weak in bending strength and to be broken immediately and broken. Become. The neck portion having no strength is surrounded and protected by the inner diameter wall surface of the through hole end formed in the separator shaft connection metal fitting, and the separator shaft main body portion is slightly inserted into the through hole, thereby hitting concrete When installing, normally, tensional force is applied to the both ends of the separator shaft in different directions to the left and right, and a rotational force is generated at the connecting portion of the separator shaft, and the neck portion without strength bends and breaks immediately. However, according to the present invention, the strength of the original anchor separator shaft can be maintained without bending and breaking the main body portion of the anchor separator shaft.

According to the third aspect of the present invention, in addition to the effects of the first aspect, the separator shaft adjustment fitting for passing the adjustment separator shaft and the anchor separator shaft are directly connected to each other to form an integral structure. By this, when a strong pulling force is applied to the both ends of the separator shaft in the left and right different directions, if it is one separator shaft, it is pulled in parallel because the axis is the same, but two left and right separate separator shafts are connected and fixed In the case where both axis centers are different from each other, the left and right two separator axes are going to be parallel, and a rotational force is generated on the separator axis of both connected parts, and the separator axis is bent. The overall length of the separator shaft of will be extended. When the rotation ratio is arranged in parallel to connect both separator shafts, the larger the distance between the two, the larger the rotation. Therefore, to suppress the rotation ratio, the distance between the separator shafts is as narrow as possible. Since it is necessary, the separator shaft adjustment bracket and the anchor separator shaft are directly connected to form an integral structure, and bending and elongation of the adjustment separator shaft and anchor separator shaft fixedly connected to the separator shaft adjustment bracket can be minimized and prevented. It becomes possible. In addition, the vertical height of the product can be reduced by directly connecting the anchor separator shaft and the separator shaft adjustment fitting into an integral type, and it is possible to realize connection and fixation with only one adjustment separator shaft. As a result, the connection / fixing portion becomes a single axis, and it becomes possible to easily rotate the separator shaft connection / fixing fitting, which is not possible in the conventional product, sideways and turn it over. As a result, the tightening screw connected to the upper center of the separator shaft connection fixing bracket can also be turned sideways together, and there is almost no influence in the height direction, so it does not interfere with the separator shaft connection work. It is possible to construct without hindrance to securing the thickness of concrete (generally 10 to 20 cm is good on the reinforcing bar but securing at least 5 cm thickness at the minimum) that does not cause peeling even when casting. It becomes possible.

According to the fourth aspect of the present invention, by adopting the hexagonal socket set screw (hollow set), there is no screw head shape in the head of the screw as compared with the conventional product, so the same surface as the separator shaft adjustment bracket Since the head can be embedded close to the head and the head is not exposed, the possibility of catching on other members is low, which leads to further improvement of the workability. In addition, the length of the screw is short, which makes it possible to reduce the height of the separator shaft connection fixing fitting at the time of construction, and it becomes possible to conduct construction without any hindrance to securing the thickness at the time of pouring concrete. . Furthermore, since the center of the protruding structure of the end of the screw portion is recessed and presses against the mating member to contact and bite in a circle, it is excellent for operations such as fixing and adjusting a circular shaft, and temporary tacking of the adjustment separator shaft is repeated several times It is possible to adjust easily and to obtain the desired length easily, and because the hardness and strength class is high compared to general bolts and screws etc, it becomes possible to reuse, and higher torque and firm As it becomes possible to press and squeeze with the screw tip, the screw tip protrusion bites deeply and it becomes possible to connect and fix only one adjustment separator shaft.

According to the fifth aspect of the present invention, the separator shaft can be more firmly fixed by providing the jagged surface on the side surface of the projecting portion at the tip.

According to the sixth invention of the present application, a substantially conical pointed end is provided in the mortar-like central portion of the bottom of the projection bottom of the end of the end of the tightening screw to be screwed into the female screw hole of the separator shaft adjustment fitting It is possible to fix the separator shaft to

FIG. 1 is a schematic view and a cross-sectional view of a first embodiment of a separator shaft connection fixing bracket of the present invention. It is sectional drawing of the clamping screw 3 of this embodiment. It is sectional drawing which looked at the separator axial connection fixing bracket of this embodiment from the side. It is sectional drawing which looked at the separator axial connection fixing bracket of this embodiment from the front. It is the schematic of 2nd Embodiment of the separator axial connection fixing bracket of this invention. It is sectional drawing of the separator axial connection fixing bracket of 2nd Embodiment. It is the figure which looked at the separator axis connection fixing bracket of a 2nd embodiment from the front. The modification of the clamping screw 3 of this invention is shown. The modification of the clamping screw 3 of this invention is shown.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of a first embodiment of a separator shaft connection fixing bracket of the present invention. In the present embodiment, the side surfaces of the separator shaft adjustment fitting 1 and the separator shaft connection fitting 2 are fixed to each other to form a separator shaft connection fixing fitting 100. The tightening screw 3 is connected by screwing its tip into the female screw hole 4 formed in the separator shaft adjusting fitting 1. The female screw hole is formed substantially at the center of the upper surface of the separator shaft adjustment fitting 1. In addition, a helical protrusion is formed inside the through hole 5 of the separator shaft adjustment fitting 1. The shape of the through hole 5 is not particularly limited, but a substantially cylindrical shape is preferable, and the internal shape is not particularly limited, but the inserted adjustment separator shaft 7 is always the bottom of the through hole 5 In order to be positioned naturally at the center, it is preferable that the bottom surface of the through hole 5 be in a mortar shape and rounded. The shape of the helical projection may be formed anywhere from one end to the other end inside the through hole 5, but is preferably formed around the lower part of the tightening screw, and the adjustment separator shaft In order to fix 7 more firmly, it is more preferable to form in all the through holes 5. The helical projections do not particularly limit the distance between the projections forming the spiral and the tip shape of the projections, etc. However, the distance between the screw threads is narrow and the sharp angle of the projections is more pronounced. preferable. When connecting and fixing the separator shaft at the time of construction, the adjustment separator shaft 7 whose male screw is still formed at both ends is inserted into the through hole 5 and the tightening screw 3 is lightly tightened and temporarily fixed. After adjusting the length, the adjustment separator shaft 7 is fixed by firmly tightening with a hexagonal wrench or a hexagonal wrench impact or the like.

A female screw capable of screwing the male screw of the separator shaft is formed in the through hole 6 of the separator shaft connection metal fitting 2. The male screw of the end of the existing separator shaft 8A is inserted into the through hole 6, and the female screw is screwed. Then, the separator shaft connection fixing bracket 100 is fixed. Male threads are also formed at the end of the adjustment separator shaft 7 and the existing separator shaft 8A that is not fixed to the separator shaft connection fixing bracket 100, and may be attached to other structures according to the situation of the construction site it can. For example, in the case of concrete formwork, this male screw is screwed into the female screw formed on the pecon shaft, and the male screw provided at the end of the pecon shaft is inserted into the hole of the concrete mold panel, From the back side of the frame panel, a tightening metal fitting is screwed into an external screw of the pecon shaft and screwed to fix the pecon shaft to the concrete formwork panel.

FIG. 2 shows a cross-sectional view of the tightening screw 3 of the present embodiment. As the tightening screw 3 of the present embodiment, a fully threaded hexagonal socket set screw (hollow set) is adopted. The tip structure of the tightening screw 3 has a structure (projecting portion) in which an end portion in the direction of being screwed into the female screw hole 4 protrudes and a shape in which the bottom portion of the protruding portion is recessed like a mortar. The structure of the protrusion is a structure in which the diameter gradually becomes smaller than the diameter of the entire screw portion from the full screw portion toward the tip of the tip portion. By making the tip of the tightening screw 3 into such a structure, it is possible to firmly bite into the surface of the upper portion of the adjustment separator shaft inserted into the through hole 5, compared with a flat tip structure etc. It is possible to realize a stronger fixing force. In addition, a hexagonal hole is formed on the upper surface of the other end opposite to the projecting portion, and when the adjustment separator shaft is fixed, it can be tightened with a hexagonal wrench, a hexagonal wrench impact or the like. With such a structure, the tightening operation is simplified, the workability is improved, and the screw can be tightened more firmly than a screw of a type with a plus or minus driver or the like.

The tip structure of the tightening screw 3 is not limited to the shape used in the present embodiment, and the side surface of the protruding portion of the end of the tightening screw 3 to be screwed into the female screw hole 4 of the separator shaft adjustment fitting 1 A shape having a jagged surface, a shape in which a substantially conical tip is provided at a mortar-like central portion at the bottom of the protrusion at the tip end, or a tip structure using these shapes in combination can be used. By using the tightening screw 3 of these shapes, when adjusting the distance between both formwork panels with the adjustment separator shaft at the time of construction, it is possible to lightly tighten and temporarily fix several times, and the desired length Can be easily obtained. Further, it is possible to realize a better fixing force in that the adjustment separator shaft 7 can be firmly pressed from the upper part to the bottom inside the through hole 5 of the separator shaft adjustment fitting 1 and stopped.

The hardness of the screw 3 used in the present embodiment is not particularly limited, and the hardness of generally used screws can be used. In addition, in order to connect and fix the separator shaft more firmly, if the material is made of steel, the strength classification subjected to surface treatment and heat treatment is 45 HRC or more, and if made of stainless steel, 12H or 21H, etc. It is preferable to use one having a high strength classification. Thereby, when tightening with a hexagonal wrench or a hexagonal wrench impact or the like, it is possible to tighten with high torque, and as a result, it is possible to firmly fix the adjustment separator shaft.

FIG. 3 shows a sectional view of the separator shaft connection fixing bracket 100 as viewed from the side. The through hole 5 of the separator shaft adjustment fitting 1 forms a helical projection as described above. The size of the diameter of the through hole 5 is such a size that it can be easily inserted and passed while having an external screw at the end of the adjustment separator shaft, and can be freely slid and moved back and forth. . As a result, when adjusting the distance between the two formwork panels with the adjustment separator shaft at the time of construction, it is possible to easily insert and use the male screw portion as it is without cutting it away, thereby reducing labor and time for operation It becomes. Further, a female screw hole 4 is formed on the upper surface of the separator shaft adjustment fitting 1 so as to reach the through hole 5. The female screw hole 4 is for screwing the tightening screw 3, so that the adjustment separator shaft 7 inserted into the through hole 5 is firmly fixed by the screw 3 and the helical projection provided in the through hole 5. And a structure that can be fixed. More specifically, when the tightening screw 3 is tightened, the lower portion of the adjustment separator shaft 7 to be pressed and fixed bites into the spiral protrusion of the through hole 5, and a protrusion mark is formed, and adjustment is performed. It is possible to generate resistance to the slippage of the separator shaft 7. In addition, when a strong attractive force is applied to one end of the adjustment separator shaft 7 during placing concrete, a rotational force is generated on the adjustment separator shaft 7 along the track of the spiral projection of the through hole, and adjustment simultaneously by rotation thereof. The tightening screw 3 holding the separator shaft 7 rotates itself in the tightening direction, and the adjusting separator shaft 7 faces the tightening screw 3 by itself, and the tip of the tightening screw 3 bites in. It becomes possible to realize a stronger fixing force on the upper and lower surfaces of the adjustment separator shaft 7.

Female screws are formed in the through holes 6 of the separator shaft connection fitting 2. The inner diameter of the through hole 6 of the separator shaft connection fitting 2 is a screw-less hole of such a size that the external screw of the end of the existing separator shaft 8A into which the left and right ends are inserted is directly inserted. The role of screwing between the external thread at the end of the body and the main body, and the neck 13 of the separator shaft, which is weak and weakly broken due to the strength of bending to a concave that is thinner than the main body for beating The shaft part of the main body which has a strength of a little can be inserted. As described above, by forming a hole having a depth that is protected by being surrounded by the inner diameter wall surface of the through hole 6 at the left and right end portions of the through hole 6, the concrete is cast at both ends of the separator shaft. Even when the tensile force is applied in different directions to the left and right, and a rotational force is generated at the connecting portion of the separator shaft and the main body portion is bent, the existing separator shaft inserted does not break the original strength of the separator shaft. It can be demonstrated and realized. In addition, since a female screw is formed in the central part, it can be screwed with the male screw at the end of the existing separator shaft 8A to be inserted, and the separator shaft connection fixing bracket 100 can be easily connected and fixed. Become. As a result, it is possible to cope with all lengths regardless of the length, and it becomes possible to easily connect and fix the separator shaft connection fixing bracket 100, thereby facilitating the trouble that the dimensions do not match due to any factor. It can be solved. Further, by forming screw-free holes on the left and right of the through hole 6, the existing separator shaft can be inserted and screwed from either the left or the right at the time of construction, which leads to improvement in workability regardless of attachment.

FIG. 4 is a cross-sectional view of the separator shaft connection fixing bracket 100 as viewed from the front. As the separator shaft adjusting fitting 1 and the separator shaft connecting fitting 2 of the present embodiment, a hexagonal tubular member having a circular through hole is used. These may manufacture and use the metal fitting of such a shape, and may use a commercially available hexagonal high nut. The separator shaft adjusting fitting 1 and the separator shaft connecting fitting 2 of the present embodiment are connected by welding one side face of a hexagon. In the present embodiment, welding is used, but the connection method is not limited to this method. As in the present embodiment, by making the external shape of the metal fitting hexagonal, it is possible to ensure a well-balanced outer wall thickness with respect to the entire surface of the through-hole having a circular inner shape, and uniform diagonalization. Because of the structure, the applied force can be uniformly dispersed and absorbed, and the strength becomes very strong. In addition, it is possible to tighten the tightening screw with a higher torque and a stronger rigidity and strength classification compared with general bolts and screws, etc. using inexpensive members. Furthermore, since the opposite sides are substantially even on all six surfaces, it is possible to connect the flat surfaces of the two metal fittings, and since there are many adhesive surfaces, the connection can be fixed strongly, being strong against forces such as twist. Further, by making the inner shape of the metal fitting into a circular through hole, in the separator shaft adjusting bracket 1 of this embodiment, the adjustment separator shaft 7 is easily inserted through the through hole 5 at the time of construction, It made it possible to position naturally at the center of the bottom. Furthermore, in the through hole 6 of the separator shaft connecting fitting 2 of the present embodiment, the neck portion 13 of the existing separator shaft is of such a size that the external thread of the end of the existing separator shaft 8A can be inserted as it is. Screw-in holes are formed at the left and right ends at a depth that allows the shaft portion of the main body to be slightly inserted, and a female screw capable of screwing the male screw of the existing separator shaft 8A is formed at the center. When manufacturing a structure of such a configuration, it is possible to make manufacturing cost far cheaper than other members if it is made by adding a hexagonal high-nut external shape to the external shape. In the development of new products, products that are functionally equivalent to or better than conventional products and require inexpensive ones, otherwise the new product can not be sold, the present invention The separator shaft connection fixing bracket also adds an innovative thought to the inexpensive member, and adds the integrated combination of the separator shaft adjusting bracket 1, the separator shaft connecting bracket 2 and the tightening screw 3 to the improvement. Research and develop functionally superior products. The present invention has repeatedly achieved inventive ideas, succeeded in solving these problems, and has developed a separator shaft fitting that can realize sufficient tensile strength, and is an inexpensive member equivalent to or more than conventional products. By making it possible to commercialize products with strength, it is possible to contribute to shortening of construction time and material cost reduction by a new method of use and connection method which has never been done before.

FIG. 5 is a schematic view showing a second embodiment of the separator shaft connecting fitting according to the present invention, FIG. 6 is a sectional view of the second embodiment, and FIG. 7 is a front view of the second embodiment. A difference from the first embodiment is that the separator shaft connecting and fixing bracket 100 is configured of the separator shaft adjusting bracket 1 and the anchor separator shaft 8B. The configuration of the separator shaft adjusting bracket 1 is the same as that of the first embodiment. In the second embodiment, the side surface of the anchor separator shaft 8B is welded to the bottom surface of the separator shaft adjustment bracket 1 to form a separator shaft connection fixing bracket 100. In addition, although it connected by welding in this embodiment, it is not restricted to it.

As in the second embodiment, by welding the side surface of the anchor separator shaft 8B to the bottom surface of the separator shaft adjustment fitting 1, the length is adjusted by only one of the adjustment separator shafts 7 during construction and connection Fixing can be realized. By taking the second embodiment, the connection fixing portion can be made a single axis, and it becomes easy to rotate the separator shaft connection fixing bracket 100 itself sideways and to tilt it. As a result, the tightening screw screwed to the upper part of the connection fixing bracket can also be turned to the side and turned down, and the protrusion to the upper part in the height direction at the time of putting concrete can be eliminated. Can be almost eliminated. For this reason, at the time of construction, it does not get in the way of the work because there is little catching on other members, and it becomes possible at the time of concrete placing without impeding on securing the thickness of the concrete.

Since the anchor separator shaft 8B used in the second embodiment also has an anchor-like function when attached to an object to be attached, it is shorter than the existing separator shaft 8A used in the first embodiment. It can be used. Although the length which can be used especially is not limited, according to the distance between the formwork of a construction site etc., the thing of appropriate length can be chosen. As a length for exhibiting an anchor-like function, a thing of about 10-100 cm is more preferable. With this length, the workability of the separator shaft connection is good, and it is also excellent in that the attachment portion is not damaged when attached to the object.

In the first embodiment and the second embodiment according to the present invention, it is possible to realize a tensile strength that sufficiently satisfies each of the civil engineering and construction standards. In addition, since the cost can be reduced to the same level or more as compared with the conventional product, it is possible to provide a separator shaft connection fixing bracket having a cost reduction and sufficient strength.

About enforcement of a concrete formwork The example of the usage method of the separator axial connection fixing bracket 100 of this embodiment is demonstrated. First, as an example, one end of the existing separator shaft 8A is connected and fixed to the side surface of the mold with a pecon fitting or the like. Next, a male screw of the other end of the existing separator shaft 8A is screwed into and connected to the through hole 6 of the separator shaft connecting fitting 2 of the separator shaft connecting and fixing fitting 100 according to the first embodiment of the present invention. Thereafter, the adjustment separator shaft 7 is inserted from one end into the through hole 5 of the separator adjustment fitting 1 with an external thread, and temporarily fixed with the tightening screw 3, while the other end is placed on the other form side with the pecon fitting etc. Connect and fix, adjust the distance between both molds appropriately, and then tighten screw 3 in the upper part of the through hole, which has been loosely screwed in advance and temporarily connected, with a hex wrench, hex wrench impact, etc. Tighten tightly to fix and fix the adjustment separator shaft 7 and the separator shaft connection fixing bracket 100 firmly. Similarly, at a stage where the separator shaft connection fixing bracket 100 can be fixed by a necessary number to keep the distance between the molds constant, concrete is finally cast to complete construction. In addition, the separator shaft connecting and fixing bracket 100 of the first embodiment can be used to connect and use two appropriate separator shafts remaining in another construction in the connection method. One end of one suitable separator shaft (existing separator shaft 8A) is connected and fixed to the side surface of the mold with a pecon fitting etc., and the male screw of the other end is screwed into the through hole 6 of the separator shaft connection fitting 2 for connection Fix the other appropriate separator shaft (adjustment separator shaft 7) into the through hole 5 of the separator adjustment bracket 1 while inserting an external thread from one end while inserting an external screw temporarily, while holding the other end at the other end Etc. by connecting to the side of the other form, adjusting the distance between both forms appropriately and tightening the tightening screw 3, and the other appropriate separator shaft (adjustment separator shaft 7) It becomes possible to firmly connect and fix the separator shaft connection fixing bracket 100. In this way, regardless of the length of the appropriate separator shaft, it can be easily attached to the tip of the appropriate separator shaft where it is needed, such as attachment, to accommodate all the lengths. In addition, two separator shafts can be easily connected, and temporary tacking can be made again and again, so that it is possible to easily adjust and obtain a desired length, and can be reused, contributing to material cost reduction. It is possible to provide a new separator shaft connection fixing bracket which has never been seen before.

Also, when assembling concrete formwork at a construction site or a civil engineering site where concrete is to be placed, due to some factor, the dimensions initially assembled and the distance between both formwork panels are closed, and the existing prepared as originally prepared It is likely that the length of the separator shaft does not match. In such a case, it is usually necessary to prepare a new dimensioned separator shaft. Alternatively, it is necessary to connect two separator shafts by preparing a new adjustment separator shaft necessary for the desired length separately from the existing separator shaft originally prepared. It is not necessary to connect in the middle of both formwork panels, but it is possible to connect and connect at either end which you notice that the lengths do not match. In such a case, according to the separator shaft connecting and fixing bracket 100 according to the first embodiment of the present invention, the other end of the existing separator shaft 8A whose one end is connected to the formwork panel and whose length does not match First, the through hole 6 of the separator shaft connection fitting 2 is inserted into and screwed into the male screw portion of the separator shaft connection fixing bracket 100 is easily connected to the existing separator shaft 8A, and the existing separator shaft The existing separator shaft 8A plays the role of the anchor separator shaft 8B, which is the same as the connection and fixation of the anchor separator shaft 8B to the side surface of one mold frame. Then, using the new adjustment separator shaft 7 required for the desired length, connect and fix to the other form side. The basic fixing method of the adjustment separator shaft 7 is the same as that of the first embodiment described above.
In this way, at a point where a separator shaft connection fitting that can correspond to all lengths regardless of the length of the existing separator shaft is required, the existing separator shaft at the tip of the existing separator shaft in a manner such as attachment. It becomes possible to screw and connect to the separator shaft of the above-mentioned, and connection of both separator shafts is easy, and it becomes possible to solve the trouble, reduce the material cost, and improve the working efficiency.

As a usage example of the usage method of the further separator shaft connection fixing bracket 100, first, one end of the existing short separator shaft 8A is connected to the separator shaft connection of the separator shaft connection fixing bracket 100 according to the first embodiment of the present invention By screwing and connecting an external screw of one end of the short existing separator shaft 8A to the through hole 6 of the metal fitting 2, the separator shaft connection fixing bracket 100 is easily connected to the short existing separator shaft 8A, The short existing separator shaft becomes the separator shaft with the connection fixing bracket, and the short existing separator shaft 8A plays the role of the anchor separator shaft 8B, so that it can function as the separator shaft connection fixing bracket with the anchor separator shaft. This is the same as the separator shaft connection fixing bracket 100 of the second embodiment, and the present embodiment is also the same. As described above, since it has become possible to connect only one existing separator shaft 8A with the separator shaft adjusting bracket 1 with strong connection strength, it has not been used as never before as described above. By the method of connection and the method of connection, connection of both separator shafts is easy, and it becomes possible to solve problems, reduce material costs and improve work efficiency. Further, in the separator shaft connecting and fixing bracket according to the first embodiment of the present invention, as described in the above description, in all cases where the dimensions do not fit and bother, and as the anchor separator shaft 8 B according to the second embodiment. Because there are two ways of use, the separator shaft connection fixing bracket of the first embodiment can cope with all situations, and it is possible to provide a use method that meets the needs of the user. Become.

Next, a separator shaft connection fixing bracket 100 according to a second embodiment of the present invention will be described. As a method of fixing the adjustment separator shaft 7, a method similar to that of the first embodiment can be considered. With regard to the separator shaft connecting and fixing bracket 100 according to the second embodiment, first, by fixing the male screw portion of the anchor separator shaft 8B to one of the formwork, one separator shaft and the separator shaft connecting and fixing bracket 100 are simultaneously installed. It will be in the state of Next, the adjustment separator shaft 7 is inserted through the through hole 5 without cutting in a state where the male screw is attached from one end, and the adjustment separator shaft 7 is slid while being temporarily fixed by the tightening screw 3. While properly adjusting the distance between the two formwork, fix the male screw at the other end to the other formwork. Next, the clamping screw 3 is tightened to fix and fix the adjusting separator shaft 7 firmly. In addition, the separator shaft connection fixing bracket 100 of the second embodiment is inclined approximately 90 ° laterally from the height direction to be cast, if necessary, in order to secure the thickness of the concrete when casting concrete. It can be fixed by Similarly, at the stage where the distance between the formwork can be kept constant by fixing the required number of separator shafts by the separator shaft connection fixing bracket 100, concrete is finally cast to finish construction. In the implementation of the second embodiment, the separator shaft connection fixing bracket 100 is attached in advance to a mounting object such as a form by a necessary number, and thereafter, collectively using the adjustment separator shaft 7 of an appropriate distance. Workability and work efficiency can be improved because the length adjustment and connection fixation can also be performed.

Also, as in the first embodiment, one end is connected and fixed to the formwork panel at either end where it is noticed that the dimensions of the separator axis do not match between the two formwork, and the lengths do not match. A state in which the external thread on the other end of the existing separator shaft 8A is attached is inserted into the through hole 5 of the separator shaft connection fixing bracket 100 of the second embodiment and penetrated, and the separator shaft connection fixing bracket 100 is slid. While adjusting the distance where the lengths do not fit properly, connect and fix the male screw part of the anchor separator shaft 8B to the form of the other end, and tighten the tightening screw 3 to fix the length easily. It is possible to compensate for the distance of the end that does not fit. Thus, since the separator shaft connection fixing bracket 100 of the second embodiment has an unprecedented new configuration in which the separator shaft is attached from the beginning as the anchor separator shaft 8B in the connection bracket, it is slight. Even if the lengths do not match in distance, if the separator shaft connection fixing bracket 100 of the second embodiment is used, the existing separator shaft prepared at first is pierced through the through hole 5, and the anchor separator shaft 8B is attached. Therefore, it is not necessary to prepare a new separator shaft, and the function as an adjuster can be realized, the process of connecting both formwork panels can be immediately carried out, the number of work processes can be reduced, and the installation can be facilitated. As described above, since it has become possible to connect only one existing separator shaft 8A with the separator shaft adjusting bracket 1 with strong connection strength, it has not been used as never before as described above. In the method and the connection method, connection of both separator shafts is easy, and it is possible to solve problems, reduce material costs, and improve work efficiency.

<Other embodiments>
(1) In the present embodiment, a hexagonal tubular member is used as the separator shaft adjusting fitting 1 and the separator shaft connecting fitting 2, but circular, elliptical, triangular, square or other polygonal ones may also be used. it can.
(2) In the present embodiment, a set screw having a hexagonal hole at the head is used as the tightening screw 3, but if the protrusion as in the present embodiment is provided at the tip, a set screw with a cruciform hole , Slotted setscrews or hexagonal socket bolts or any other cross-headed, slotted or polygonal bolts or screws with a head, or those with a square-headed shape (shown in FIG. 9) it can .
(3) In the present embodiment, a helical projection is provided on the entire through hole 5 of the separator shaft adjustment fitting 1 but may be provided only in the vicinity of the center overlapping the female screw hole 4 (shown in FIG. 10).
(4) In the present embodiment, the shape of the through hole 5 of the separator shaft adjusting fitting 1 is formed into a circular shape, but an elliptical shape, a triangular shape, a square shape, or another polygonal shape can also be used.
(5) In the present embodiment, a helical projection is formed and used in the internal shape of the through hole 5 of the separator shaft adjustment fitting 1, but the tip interval of the projection in any place inside the through hole 5 Is narrow,
Other shapes can also be used, provided that the projections have sharp edges.
(6) In the present embodiment, inside diameter of the through hole 6 of the separator shaft connection metal fitting 2 is an unscrewed hole of such a size that the male screw portion of the separator shaft end inserted into both ends A hole of such a depth as to allow the neck of the separator shaft to be formed between the male screw and the separator shaft main body is formed and used, but it is provided only at one end inside the through hole 6 The shape of can also be used. Furthermore, in the present embodiment, the unthreaded hole of the through hole 6 is substantially cylindrical, but the shape of the unthreaded portion may be a substantially triangular prism, an approximately square prism, or the like.
(7) In the present embodiment, a female screw for screwing and fixing the male screw at the end of the separator shaft is formed and used at the center of the inside of the through hole 6 of the separator shaft connector 2. Other shapes can also be used if the female screw is provided at any location.
(8) In the present embodiment, a female screw is formed in at least a part of the through hole 6 of the separator shaft connection metal fitting 2. However, instead of the female screw, a coupler shape or the like is provided to insert the separator shaft and insert it. It is also good.

DESCRIPTION OF SYMBOLS 1 Separator shaft adjustment fitting 2 Separator shaft connection fitting 3 Tightening screw 4 Tightening screw female screw through hole 5 Separator shaft adjustment fitting 1 through hole 6 Separator shaft connection fitting 2 through hole,
7 Adjustment Separator Shaft 8A Existing Separator Shaft 8B Anchor Separator Shaft 9 Insertion of Hexagon Wrench Hexagon Socket 10 Square Head 11 for Tightening with a Spanner etc. Square Conical Tip 12 Protruding Portion Outer Surface 13 Separator Shaft Neck

Claims (6)

A separator shaft connection fixing bracket comprising a separator shaft adjustment bracket and a separator shaft connection bracket,
Form a through hole in the separator shaft adjustment bracket,
Helical projections are formed in the through holes, and the inner diameter of the through holes is of such a size that it can be freely moved back and forth by inserting an external screw at the end of the adjustment separator shaft used in construction,
In the separator axis adjustment fitting, a female screw hole is formed so as to penetrate from the central portion of the upper surface to the through hole in the vertical downward direction,
In the female screw hole, a tightening screw for stopping movement of the adjustment separator shaft inserted in the through hole is screwed and connected,
The tightening screw has a shape in which the tip of the end to be screwed into the female screw protrudes and the bottom of the end of the tightening screw is recessed like a mortar.
The separator shaft connection fitting is
A through hole is formed, and at least a portion of the through hole is internally threaded, and the side surfaces of the separator shaft connection fitting and the separator shaft adjustment fitting are aligned and connected.
Separator shaft connection fixing bracket characterized in that. The separator shaft connection fitting is
Form a through hole,
The inner diameter of the left and right ends of the through hole is a screw-less hole of such a size that the male screw portion of the separator shaft end to be inserted can enter as it is,
The unthreaded hole of the through hole forms a hole of such a depth that the neck portion of the separator shaft between the male screw and the separator shaft main body can be inserted;
The separator shaft connection fixing fitting according to claim 1, wherein a female screw for screwing and fixing a male screw of the separator shaft end portion is formed at a central portion of the through hole. A separator shaft connection fixing bracket comprising a separator shaft adjustment bracket and an anchor separator shaft,
Form a through hole in the separator shaft adjustment bracket,
A helical protrusion is formed in the through hole, and the inner diameter of the through hole is of such a size that it can be freely moved back and forth by inserting an external screw at the end of the adjustment separator shaft used during construction
In the separator axis adjustment fitting, a female screw hole is formed so as to penetrate from the central portion of the upper surface to the through hole in the vertical downward direction,
In the female screw hole, a tightening screw for stopping movement of the adjustment separator shaft inserted in the through hole is screwed and connected,
The tightening screw has a protrusion at an end to be screwed into the female screw, and a bottom of the end of the tightening screw is recessed in a mortar shape,
The anchor separator axis is
Provide an external thread at one end and connect the side of the other end of the anchor separator shaft to the bottom of the separator shaft adjustment bracket,
Separator shaft connection fixing bracket characterized in that. The separator shaft connection fixing bracket according to any one of claims 1 to 3, wherein the tightening screw is a hexagonal socket set screw. The tightening screw screwed into the female screw through hole of the tightening screw
The separator shaft connection fixing bracket according to any one of claims 1 to 4, wherein a jagged surface is provided on the outer side surface of the projecting portion of the end portion. The substantially conical pointed end portion is provided in a mortar-shaped central portion of a bottom portion of a projection bottom portion of an end of the end portion of the tightening screw to be screwed into the female screw through hole of the tightening screw. Separator shaft connection fixing bracket as described in 1 or 2.

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