JP7179640B2 - Connecting fixture for opposing members - Google Patents

Description

The present invention relates to a connecting fixture for opposing members.

Conventionally, for example, various structures such as walls, tunnels, and gutters are configured by connecting members to be connected, such as retaining walls, segments, curbs, and gutter blocks, facing each other and connecting and fixing them with connecting fixtures.

As a connection fixture for the members to be connected in such a facing state (hereinafter also simply referred to as facing members), a bolt insertion hole that communicates when facing each other is formed in the connection facing surface, and the bolt insertion hole is formed. Various proposals have been made for connecting and fixing members to be connected via an inserted bolt and a nut screwed to the end of the bolt (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2003-193548

However, as in the prior art, when a structure is constructed by connecting and fixing members to be connected with bolts and nuts, depending on the location where the structure is installed, uneven settlement due to earthquakes or ground deformation, There is a risk that the bolts and nuts will be affected by the strain stress load associated with the vibration of passing vehicles, and environmental changes such as rainwater infiltration, which will cause structural deformation of the structure and significantly reduce the structural strength and function. rice field.

In other words, the bolt and nut provide a tensile coupling force against the strain stress in the connecting part generated between the members to be connected, against the longitudinal separation reaction force in the axial direction of the bolt due to the longitudinal displacement of the members, that is, in the connection direction of the opposing members. Although it occurs, it is difficult to deal with left-right, up-down, separation reaction forces perpendicular to the connection direction of the opposed members due to vertical, vertical, or horizontal displacement of the members.

As a result, the bolts and nuts are directly subjected to stress loads in the left, right, up, and down directions that are orthogonal to the connecting direction of the opposing members, causing them to deform and deteriorate. There is a possibility that the structural deformation of the structure may occur due to the positional deviation of the members, and the strength and function of the structure may be deteriorated.

In addition, a locking portion for engaging the nut or bolt head with each member is formed in advance on each member to be connected, and a special mechanism is provided for screwing the nut onto the bolt when connecting and fixing the members to be connected. There is a problem that the installation structure becomes complicated and the connecting and fixing operation becomes complicated, such as using a jig.

The present invention has been made in view of such circumstances, and can simplify the special installation structure for connecting and fixing and the connection and fixing operation at the time of connection, and connect and tighten the members to be connected while facing each other. By doing so, it is possible to build a structure in which each member to be connected is firmly connected together, and the strength of the structure is improved in response to strain stress from all directions that is applied to the joint portion of the members to be connected, To provide a connecting fixture for opposing members capable of maintaining the structural functions of a structure for many years.

In order to solve the above-described conventional problems, the present invention provides a connecting fixture for connecting and fixing left and right connected members in an end face facing state, wherein the connecting fixture is fixed facing the opposed end faces of the left and right connected members. The left and right side connecting cores are formed to be open upward, and the left and right side connecting cores are formed at the upper and lower ends of the opposing walls facing each other, and are provided with upper and lower sides for protruding the bifurcated arm and the base projecting portion, which will be described later. With the left and right side formwork bodies having cutouts formed thereon and the left and right side formwork bodies fixed to the opposite end surfaces of the left and right connected members facing each other, the left and right side formwork bodies are inserted from above one of the left and right side formwork bodies. The forked arm and the base protruding part protruded from the upper and lower parts of the square formwork body on one side are stored in the square formwork body on the one side, and the two protruding parts of the forked arm and the base projecting part protrude from the upper and lower notches of the square formwork body on the one side into the square formwork body on the other side. In addition, the H-shaped fixing formed so as to be freely fitted in the approximately H-shaped concave space in the plan view of the engaging frame, the left and right side form bodies fixed to the connected members on the left and right sides, and the bifurcated engaging frame. Provided is a connecting fixture for opposing members characterized in that it comprises a frame body, and is configured to be capable of connecting and fixing left and right members to be connected in a state in which the end faces face each other via left and right side connecting cores.

In addition, the substantially H-shaped concave space in the plan view of the left and right side formwork bodies and the bifurcated engagement frame body is formed by the left and right rear part spaces in the left and right side formwork bodies and the center part space of the bifurcated arm. It is characterized by

In addition, the left and right connecting cores are integrally connected by the H-shaped fixing frame so that the left and right connected members can be connected and fixed via the left and right connecting cores.

According to the first aspect of the invention, there is provided a connecting fixture for connecting and fixing left and right connected members in an end-face facing state, wherein the right and left connected members for fixing the opposite end faces of the left and right connected members facing each other. A side connection core is provided, and the left and right side connection cores are formed to be open upward, and upper and lower notches are formed in the upper and lower ends of the opposing walls facing each other for protruding the bifurcated arm and the base projecting portion, which will be described later. The left and right side formwork bodies and the left and right side formwork bodies fixed to the opposing end surfaces of the connected members on the left and right sides face each other. The bifurcated arm and the base projecting portion which are stored in the square form body and protrude from the upper and lower parts thereof are protruded into the square form body on the other side from the upper and lower notches of the square form body on one side. A frame body, and an H-shaped fixed frame body formed so as to be freely fitable in a substantially H-shaped concave space in a plan view of the left and right side form bodies fixed to the left and right connected members and the bifurcated engagement frame body. , and the left and right side members to be connected can be connected and fixed in an end-face facing state via the left and right side connection cores, so a special installation structure for connection and fixation and connection and fixation operation at the time of connection are simplified. Therefore, it is possible to form a structure in which the members to be connected are connected and tightened so that the members to be connected are firmly and integrally connected.

That is, it is a simple method in which the members to be connected face each other and the bifurcated engagement frame and the H-shaped fixed frame are fitted in the square frame space formed by the left and right form bodies between the members to be connected. There is an effect that the opposing members can be tightly connected and fixed to each other simply by performing the fitting operation.

Then, regarding the strain stress of the connecting portion generated between the members to be connected, the front-rear separation reaction force in the connection direction of the opposing members and the left-right separation reaction force perpendicular to the connection direction of the opposing members The H-shaped fixed frame fitted in the substantially H-shaped recessed space formed by the engaging frame can correspond to the left and right side molds and the forked engaging frame by engaging them in the front, rear, left and right.

On the other hand, against the vertical separation reaction force orthogonal to the connecting direction of the opposing members, the bifurcated arms of the bifurcated engagement frame and the base projecting portion, which vertically protrude from the upper and lower notches of the left and right side formwork, respectively, are on the left and right sides. The upper and lower ends of the opposite walls of the rectangular frame can be engaged with each other.

Moreover, even after connecting and tightening the members to be connected, it is possible to easily remove the H-shaped fixing frame and the bifurcated engagement frame. It has the effect of reducing the work load when performing maintenance work on the structure, such as replacing members, as necessary.

Further, according to the second aspect of the invention, the substantially H-shaped recessed space in the plan view of the left and right side formwork bodies and the bifurcated engagement frame body is bifurcated with the left and right back space of the left and right side formwork bodies. Therefore, when the H-shaped fixing frame is fitted into the substantially H-shaped concave space interposed between the members to be connected, the H-shaped fixing frame forms a substantially H-shaped structure. The outer peripheral side surface of the H-shaped fixed frame body is pressed against the left and right back surfaces of the left and right side form bodies and the inner side surface of the arm forming the central space of the forked arm so as to fill the recessed space without gaps. There is an effect that the connection tightening between them can be performed steadily.

Further, according to the third aspect of the invention, by integrally connecting the left and right connecting cores with the H-shaped fixing frame body, the left and right connected members can be connected and fixed via the left and right connecting cores. With this configuration, there is an effect that the left and right connected members can be securely fastened with the H-shaped fixing frame as a core through the left and right connecting cores.

FIG. 4 is a front view showing the configuration of a member to be connected on which the connection fixture according to the present invention is installed; FIG. 4 is a plan view showing a state in which members to be connected are connected and tightened with the connecting fixture according to the present invention in a state where the end faces are opposed to each other; FIG. 4 is a vertical cross-sectional view showing a state in which the members to be connected are connected and tightened with the connecting fixture according to the present invention so that the end surfaces of the members to be connected are opposed to each other. FIG. 4 is a schematic enlarged perspective view showing an end face portion of a member to be connected on which a connecting fixture according to the present invention is installed; It is explanatory drawing which shows the structure of the right-and-left side formwork of the connection fixture which concerns on this invention. FIG. 4 is an explanatory diagram showing the structure of a forked engagement frame of the connecting fixture according to the present invention; FIG. 4 is an explanatory view showing the configuration of the H-shaped fixing frame of the connecting fixture according to the present invention; FIG. 4 is a schematic explanatory view showing a procedure for connecting members to be connected by the connecting fixture according to the present invention; FIG. 4 is a schematic explanatory view showing a procedure for connecting members to be connected by the connecting fixture according to the present invention; FIG. 4 is a schematic explanatory view showing a procedure for connecting members to be connected by the connecting fixture according to the present invention;

The gist of the present invention is a connecting fixture for connecting and fixing left and right connected members in an end-face facing state, in which the left and right connecting cores for fixing the opposite end faces of the left and right connected members facing each other. The left and right side connecting cores are formed with upper and lower notches for protruding a forked arm and a base projecting portion, which will be described later, respectively, at the upper and lower ends of the opposing walls facing each other. In a state in which the formwork body and the left and right side formwork bodies fixed to the opposing end faces of the connected members on the left and right sides face each other, the formwork body is inserted from above the one side formwork body into the one side formwork body. a bifurcated engagement frame body in which a bifurcated arm and a base projecting portion protruding from the upper and lower portions thereof protrude from the upper and lower notches of the square frame body on one side into the square frame body on the other side; H-shaped fixed frame formed so as to be freely fitable in the substantially H-shaped recessed space in plan view of the left and right side formwork and the bifurcated engagement frame fixed to the connected members on the side, An object of the present invention is to provide a connecting fixture for opposing members, characterized in that the left and right members to be connected can be connected and fixed in a state in which the ends face each other via left and right connecting cores.

In addition, the substantially H-shaped concave space in the plan view of the left and right side formwork bodies and the bifurcated engagement frame body is formed by the left and right rear part spaces in the left and right side formwork bodies and the center part space of the bifurcated arm. It is in.

Further, the left and right connecting cores are integrally connected by the H-shaped fixing frame, thereby connecting and fixing the left and right connecting members via the left and right connecting cores.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing a side ditch block as a member to be connected on which a connection fixture according to the present invention is installed, and FIGS. 2 and 3 are plan views showing a state in which the side ditch blocks are connected and tightened with the connection fixture in a state where the ends face each other. Figures and cross-sectional views, FIG. 4 is a schematic enlarged perspective view of the end face portion of the gutter block in which the connecting fixture is installed, FIG. 7 is a front view, side view and plan view showing the configuration of the bifurcated engagement frame, FIG. 7 is a front view, side view and plan view showing the configuration of the H-shaped fixed frame, FIGS. 8 to 10 are connected and fixed It is typical explanatory drawing which shows the connection procedure of the side ditch blocks by a tool.

The connecting fixture A according to the present invention is installed on the opposite end surfaces 101 and 101' of the members to be connected 100 and 100' as shown in FIGS. It is used for connecting and fixing 100 and 100' with their ends facing each other.

In this embodiment, as shown in FIGS. 1 to 3, the member to be connected 100 is a gutter block, and the connecting fixtures A are provided at both ends of the left and right side walls of the gutter block to connect and tighten the gutter blocks. Build strong gutters as a structure.

As described above, the members to be connected 100 to which the connecting fixture A of the present invention can be applied include, for example, retaining wall members for constructing walls, segments for constructing tunnels, and rod-shaped members for constructing columns. Wood, curbstone blocks for constructing a curbstone, etc. may be used, and the materials and shapes are not limited as long as they can be connected in an end-face facing state.

As shown in FIGS. 1 to 4 and 8, left and right connecting cores 10 and 10' are fixed to opposing end faces 101 of the member 100 to be connected so as to face each other.

In this embodiment, the left and right side connecting cores 10, 10′ of the connecting fixture A are installed at the upper corners of the longitudinal ends of the left and right top ends of the gutter blocks serving as the connected members 100, 100′. Left and right side mold bodies 20, 20', which will be described later, are embedded and fixed in the upper corners of the opposed end faces 101, 101'.

That is, the left and right side form bodies 20, 20' are connected and fixed to each of the connected members 100, 100' when the operator performs the connection fixing operation of the connected members 100, 100' with the connection fixture A. Surfaces that can be fitted with the bifurcated engagement frame 30 and the H-shaped fixed frame 40 described later, that is, the exposed surfaces 104 and 104' of the opposing members visible from the operator side and the connected member 100, A part of the opposing end corner formed by the opposing side surfaces 103, 103' (hereinafter also simply referred to as the end surface) of the 100' is defined as the opposing end surface 101, 101', and the opposing end surface 101, 101' They are embedded and fixed in a facing state with a part thereof exposed.

The left and right side connecting cores 10, 10' embedded and fixed in the opposing end face portions 101, 101' in a facing state are arranged so that the end faces 103, 103' of the members to be connected 100, 100' face each other, and the members to be connected are arranged between the end faces 103, 103'. 100 and 100' are connected and fixed.

As shown in FIGS. 3 and 4, the left and right connecting cores 10, 10' are formed by left and right side form bodies 20, which are integrally fixed to the opposite end surfaces 101, 101' of the members to be connected 100, 100', respectively. 20', a forked engagement frame body 30 fitted inside the left and right side form bodies 20, 20', and further the left and right side form bodies 20, 20' and the left and right side form bodies 20. and an H-shaped fixed frame 40 fitted to the forked engagement frame 30 fitted to the frame. The materials of the left and right side mold bodies 20, 20', the forked engagement frame body 30, and the H-shaped fixed frame body 40, which constitute the left and right side connecting cores 10, 10', are not particularly limited. For example, metal, hard resin, or the like can be used.

Since the left and right side formwork bodies 20 and 20' have the same shape and configuration, the one side formwork body 20 will be described below as an example. The rectangular frame body 20 has upper and lower cutouts 21 and 22 for protruding the forked arm 31 and base protrusion 32 of the forked engagement frame 30 at the upper and lower ends of the facing walls of each core 10 . is doing.

Specifically, the rectangular frame body 20 has a rectangular tubular shape as shown in FIGS. The opposing walls 23 of the respective cores 10 come into surface contact when the members 100 are opposed to each other.

The cutout heights of the upper and lower cutouts 21 and 22 are substantially the same height, and are formed so as to be substantially the same as the thickness of the forked arm 31 and the base projecting portion 32 of the forked engagement frame 30, which will be described later. is doing.

As shown in FIG. 8, the rectangular frame body 20 exposes the opposite wall 23 to the end surface 103 side of the member to be connected 100 with respect to the corner portion as the opposite end surface portion 101 of the member to be connected 100 so that the same end surface 103 is formed. In addition, the cylindrical upper opening edge surface is exposed to the exposed surface 104 side of the member 100 to be connected, and is flush with the exposed surface 104 to be embedded and fixed.

That is, in the fixed state of the rectangular frame body 20 to the connected member 100 , fittings for fitting the bifurcated engagement frame body 30 and the H-shaped fixed frame body 40 are provided inside the rectangular frame body 20 . A mounting space S1 is formed by facing the upper and lower cutouts 21 and 22 on the side of the end surface 103 and by facing the upper opening of the cylindrical hole of the rectangular frame body 20 on the side of the exposed surface 104 .

The fitting space S1 is a substantially rectangular space surrounded by the four side walls of the rectangular frame body 20 and the embedded bottom surface of the rectangular frame body 20 of the connected member 100 closing the lower opening of the rectangular frame body 20. be. The embedded bottom surface of the rectangular frame 20 of the member to be connected 100 is formed to be a flat surface along the imaginary horizontal plane formed by the lower opening edge of the rectangular frame 20 .

In addition, the left and right side form bodies 20, 20' are arranged so that when the members to be connected 100, 100' are opposed to each other at the end faces, the walls 23, 23' facing each other can be brought into surface contact with each other. As long as it is embedded in the left and right connected members 100 and 100', the opposing walls 23 and 23' and the upper opening edge surfaces are the side surfaces 103 and 103' of the connected members 100 and 100' as in this embodiment. It is not necessarily flush with exposed surfaces 104, 104'.

For example, one rectangular frame body 20 is embedded in one connected member 100 so that its opposing wall 23 protrudes outward from the end face 103 of the connected member 100, and the other rectangular frame body 20 is correspondingly embedded. The frame 20' can also be embedded in the other connected member 100' so that the opposing wall 23' is recessed inward from the end face 103' of the connected member 100'.

In embedding the rectangular frame body 20 in the member to be connected 100, when forming the member to be connected 100, for example, when forming the member to be connected 100 by casting, the rectangular frame body 20 is formed as described above. are arranged on the opposing end surface portion 101 portion. As a result, it is possible to form the member to be connected 100 in which the rectangular frame body 20 is embedded in advance or by casting on site.

In other words, the opposite end face portions 101, 101' of the members to be connected 100, 100' have left and right concave portions along the outer shapes of the left and right side form bodies 20, 20', respectively. ' will be formed so as to fit in and correspond to.

That is, basically, the left and right side form bodies 20, 20' are embedded and fixed integrally with the connected members 100, 100' when the respective connected members 100, 100' are cast-molded. Even if the members to be connected 100, 100' are not provided with the frames 20, 20', the left and right side connecting cores 10, 10', that is, the left and right side mold bodies 20, 20 It is also possible to form left and right recessed portions for fitting and fixing the left and right side mold bodies 20, 20' to the connected members 100, 100' afterward.

In addition, the rectangular frame body 20 may be provided with anchors for strengthening the state of being integrally embedded and fixed to the member to be connected 100 . For example, the anchor is attached and fixed to the outer wall of the rectangular frame body 20 by welding or the like as a deformed steel bar as an anchor member, or as an anchor groove in the cylindrical axis direction of the rectangular frame body 20 (between the members 100 and 100' to be connected). The rectangular frame body 20 can be provided with a plurality of longitudinal grooves along the direction perpendicular to the connection direction) on the outer wall of the rectangular frame body 20 .

When a deformed steel bar is used as an anchor, the tip of the anchor is directed toward the inside of the connected member 100 (for example, in the direction opposite to the side where the facing wall 23 of the square form body 20 is provided). It is attached to the square frame body 20 by fixing the base ends to the left and right outer walls of the frame body 20 .

As shown in FIGS. 3 and 8, the bifurcated engagement frame 30 includes the left and right side frame bodies 20 integrally fixed to the opposite end face portions 101 and 101' of the left and right connected members 100 and 100'. 20' are configured to be inserted from above the square frame bodies 20 on one side on the right and left sides and stored in the square frame bodies 20 on one side.

The bifurcated engagement frame 30 is arranged outwardly at the top as shown in FIGS. It comprises a protruding forked arm 31 and a base protruding portion 32 protruding outward at the lower portion so as to correspond to the lower notch portion 22 of the facing wall 23 of the rectangular frame body 20 .

As shown in FIGS. 3 and 9, the bifurcated arm 31 and the base projecting portion 32 are formed by the upper and lower notches 21 and 22 of the square frame body 20 on one side and the upper and lower notch portions of the square frame body 20' on the other side. 21' and 22' are formed so as to protrude into the square form body 20' on the other side.

Specifically, the bifurcated engagement frame 30 has a U-shape in side view as shown in FIG. and a base protruding portion 32 corresponding to the U-shaped vertical lower side portion.

As shown in FIG. 6(c), the base protruding portion 32 has a flat plate shape in a plan view, and has a predetermined thickness in a front view as shown in FIG. 6(a). Also, an upright portion 33 is erected.

In other words, the bifurcated arm 31 is continuously formed from the base end of the plate surface of the base projecting portion 32 to the bifurcated upright portion 33 which is divided upward into right and left bifurcated portions via a bent portion. As shown in FIG. 6(a), the bifurcated upright portion 33 is formed in a substantially U-shape when viewed from the front, and when the H-shaped fixed frame 40 is clamped and fitted to the bifurcated arm 31, which will be described later. It is possible to disperse the concentration of the outward expansion stress transmitted through the forked arm 31 to the base of the forked upright portion 33 .

Further, the plate surface (bottom surface) area of the base protruding portion 32 is formed so as to fit within the plan view area of the fitting space S1 inside the rectangular frame body 20 as shown in FIG. The bifurcated engagement frame body 30 can be stored in the form body 20.例文帳に追加

Further, the forked arm 31 and the base projecting portion 32 have a projecting length in which the forked arm 31 is longer than the base projecting portion 32 with the forked upright portion 33 as a reference, as shown in FIG. 6(b). It is formed so that

Specifically, the projection length of the base projection 32 is determined by inserting the base projection 32 into the lower cutouts 22 and 22' of the two left and right side form bodies 20 and 20' facing each other as shown in FIG. It is formed to have substantially the same thickness as the two left and right opposing walls 23, 23' in the abutting and opposing state when they are fitted and inserted.

Further, the protruding length of the bifurcated arm 31 is such that when the bifurcated arm 31 is fitted and inserted into the upper cutouts 21, 21' of the left and right side form bodies 20, 20' facing each other, The thickness of the two left and right opposing walls 23, 23' and the thickness of the bifurcated upright portion 33 are formed to be approximately the same as the sum total.

The thicknesses of the bifurcated arm 31 and the base projecting portion 32 are formed to be approximately the same as the heights of the upper and lower cutout portions 21 and 22 of the rectangular frame body 20, respectively.

That is, as shown in FIG. 3, the bifurcated engagement frame 30, when fitted to the left and right side form bodies 20, 20', is in contact with the inside of the U-shape and faces the left and right sides. It is formed so that the left and right opposing walls 23, 23' of the form bodies 20, 20' are interposed.

Specifically, the forked engagement frame 30 abuts the inner side of the forked upright portion 33 against the inner side of the opposing wall 23 of the square frame body 20 on one side, and the lower surface of the forked arm 31 and the base protrusion portion. The upper surface of the arm 32 is in contact with the upper and lower surfaces of the opposing walls 23, 23', and the two opposing walls 23, 23' can be interposed between the bifurcated arm 31 and the base projecting portion 32. ing.

Further, when the forked engagement frame body 30 is inserted from above the square frame body 20 on one of the left and right sides and stored in the square frame body 20 on one side, the upper surface of the forked arm 31 is connected to the member to be connected. It is formed so as to be substantially flush with the exposed surface 104 of 100 .

Specifically, as shown in FIG. It is formed to be substantially the same as the height of the space S1 (the length from the opening edge of the closed lower opening of the rectangular frame body 20 to the opening edge of the open upper opening).

The H-shaped fixed frame 40 consists of the left and right side molds 20, 20' and the bifurcated engagement frame 30 embedded and fixed in the opposite end face portions 101, 101' of the left and right connected members 100, 100'. It is formed so that it can be freely fitted into the approximately H-shaped concave space S in a plan view.

As shown in FIG. 10, the substantially H-shaped concave space S in the plan view of the left and right side form bodies 20, 20' and the bifurcated engagement frame body 30 is formed in the left and right side form bodies 20, 20'. It is formed by the back space and the center space of the forked arm 31 .

That is, by integrally connecting the left and right connecting cores 10, 10' with the H-shaped fixing frame 40, the left and right connected members 100, 100' are connected via the left and right connecting cores 10, 10'. configured to be fixed.

As shown in FIG. 7C, the H-shaped fixed frame 40 has a substantially H-shaped plan view and corresponds to the central horizontal side of the H-shaped, and includes a web portion 41 formed in a long bar shape, Left and right side flange portions 42, 42 are provided on the left and right sides of the web portion 41 so as to be perpendicular to the direction in which the web portion 41 extends.

The web portion 41 is formed so as to be freely fitted in the center space of the forked arm 31 (the space formed between the two arms of the forked arm 31) so as to be sandwiched between the two arms.

Specifically, the width of the web portion 41 is made wider than the distance between the arms of the forked arm, and when the H-shaped fixing frame 40 is fitted into the approximately H-shaped recessed space S, the width of the forked arm is increased. 31 is slightly pushed outward to form the outer surface of the forked arm 31 so that it can be crimped to the inner surface of the left and right side form bodies 20, 20'.

In addition, at the lower central portion in the longitudinal direction of the web portion 41, that is, the lower central portion in the longitudinal direction of the H-shaped fixing frame 40, as shown in FIG. The opposing wall 23 has a fitting recess 41a which is notched so that the fitting recess 41a comes into surface contact when the H-shaped fixing frame 40 is fitted into the substantially H-shaped recessed space S, It is possible to fit in from above 23' and to integrally connect the left and right side form bodies 20, 20'.

Further, the width of the lower portion of the web portion 41 excluding the fitting recess 41a is formed so that the width of the web portion 41 is gradually narrowed downward as shown in FIG. 7(b).

Specifically, both side surfaces of the lower portion of the web portion 41 excluding the fitting recess 41a are inclined downward toward the axis of the web portion 41 along the longitudinal direction. The web portion 41 is formed in the space between the arms of the forked arm 31 so that it can be easily fitted from above.

In addition, the left and right flange portions 42, 42' are rectangular, and the left and right back portions of the left and right side mold bodies 20, 20' in the substantially H-shaped recessed space S are rectangular in plan view. Left and right side form bodies 20, 20 formed outside the left and right sides of the forked engagement frame 30 in a state where the forked engagement frame 30 is fitted to the side form bodies 20, 20' ' corresponds to the square fitting space in plan view.

When the H-shaped fixing frame 40 is fitted into the substantially H-shaped recessed space S, the left and right flanges 42 , 42 are arranged so that the left and right flanges 42 , 42 are aligned with the front and rear end faces of the bifurcated arm 31 and the left and right sides thereof. It is fitted into the left and right rear space formed by the inner peripheral surfaces of the rectangular frames 20, 20'.

In addition, at the outer central portion of the left and right flange portions 42, 42', an insertion recess into which a flat-tipped tool such as a flathead screwdriver can be inserted when removing the H-shaped fixing frame 40 from the substantially H-shaped recessed space S is provided. 42b, 42b'.

More specifically, the insertion recesses 42b, 42b' are formed by cutting the left and right flange portions 42, 42' at an outer center portion and diagonally downward to the inner side of the left and right flange portions 42, 42'.

The connecting fixture A configured as described above connects and fixes the members to be connected 100 and 100' to each other as follows.

First, as shown in FIG. 8, the left and right side form bodies 20, 20' are embedded and fixed integrally with the member to be connected 100 by placing concrete or the like in the opposing end surface portion 101 of the member to be connected 100. As shown in FIG.

Next, in a state in which the opposing end surface portions 101, 101' of the left and right connected members 100, 100' are opposed, that is, in a state in which the left and right side form bodies 20, 20' are opposed, the bifurcated engagement frame 30 is inserted from above the square frame body 20 on one of the left and right sides and housed in the square frame body 20 on one side.

Next, as shown in FIG. 8, the left and right side form bodies 20, 20' are cut vertically until the inner surface of the bifurcated upright portion 33 comes into surface contact with the inner surface of the opposing wall 23 of the square form body 20 on one side. The bifurcated arm 31 and the base projecting portion 32 are inserted into the portions 21 and 22, and the bifurcated engagement frame 30 is fitted to the left and right side mold bodies 20 and 20'.

In this state, the bifurcated arm 31 and the base projecting portion 32 of the bifurcated engagement frame 30 housed in the square frame body 20 on one side, as shown in FIG. It is in a state of protruding outward from the upper and lower cutouts 21 and 22 of the opposing wall 23 .

As shown in FIG. 10, the connected members 100, 100' on the left and right sides facing each other are provided with left and right side frame members 20, 20' and a bifurcated engagement frame member 30 at their joint portions. An H-shaped concave space S is formed.

In other words, by placing the left and right connected members 100, 100' in which the left and right side form bodies 20, 20' are embedded and fixed in an opposing state, the distance between the left and right connected members 100, 100' is reduced. In the center, there is a substantially rectangular opposing rectangular space partitioned by two opposing walls 23, 23' that are in surface contact at the center with fitting spaces S1, S1' for the left and right side form bodies 20, 20'. is formed.

By inserting and storing the bifurcated engagement frame 30 into the fitting space S1 of either one of the left and right side frame bodies 20 and 20' forming such a facing square space, A substantially H-shaped concave space S is formed in the rectangular space.

Next, as shown in FIG. 10, by fitting the H-shaped fixing frame body 40 into the substantially H-shaped recessed space S, the left and right connecting cores 10 and 10 integrally formed between the members to be connected 100 and 100' are connected. 10' is formed, and as shown in FIG. 4, the left and right connected members 100 and 100' are firmly connected and fixed via the left and right connecting cores 10 and 10'.

That is, various members such as the left and right side form bodies 20, 20', the forked engagement frame body 30, and the H-shaped fixed frame body 40 constituting the left and right side connection cores 10, 10' have end faces 103, 103'. By mutually closing the gap between the members in the opposing square space or the substantially H-shaped concave space S formed between the members to be connected 100 and 100′ in the facing state, and performing the fitting connection by close contact and pressure contact. , to realize a strong connection tightening state between the members 100 and 100' to be connected.

Then, regarding the strain stress of the connecting portion generated between the connecting members, the left and right side form bodies 20, 20' And the H-shaped fixed frame 40 fitted in the substantially H-shaped recessed space S formed by the forked engagement frame 30 is attached to the left and right side form bodies 20, 20' and the forked engagement frame 30 in the front, back, left and right. Able to engage and respond.

In addition, the forked arm 31 of the forked engagement frame 30 projecting from the upper and lower cutouts 21, 22 of the left and right side form bodies 20, 20' respectively against the vertical separation reaction force orthogonal to the connecting direction of the opposing members , and the base projecting portion 32 can be vertically engaged with the upper and lower ends of the opposed walls 23, 23' of the left and right side form bodies 20, 20'.

Further, even after the members to be connected are connected and tightened, a tool with a flat tip such as a slotted screwdriver is inserted into the insertion recesses 42b and 42b' of the H-shaped fixing frame 40, and prying is performed using a lever. Since the H-shaped fixed frame body 40 can be easily removed from the approximately H-shaped recessed space by lifting, maintenance of the structure can be performed as necessary, such as by replacing some of the connected members 100 that make up the structure. Work load can be reduced.

INDUSTRIAL APPLICABILITY As described above, according to the present invention, there is provided a connecting fixture for connecting and fixing left and right connected members in an end face facing state, wherein the connecting fixture is fixed facing the opposed end faces of the left and right connected members. The left and right side connecting cores are formed to be open upward, and the left and right side connecting cores are formed at the upper and lower ends of the opposing walls facing each other, and are provided with upper and lower sides for protruding the bifurcated arm and the base projecting portion, which will be described later. With the left and right side formwork bodies having cutouts formed thereon and the left and right side formwork bodies fixed to the opposite end surfaces of the left and right connected members facing each other, the left and right side formwork bodies are inserted from above one of the left and right side formwork bodies. The forked arm and the base protruding part protruded from the upper and lower parts of the square formwork body on one side are stored in the square formwork body on the one side, and the two protruding parts of the forked arm and the base projecting part protrude from the upper and lower notches of the square formwork body on the one side into the square formwork body on the other side. In addition, the H-shaped fixing formed so as to be freely fitted in the approximately H-shaped concave space in the plan view of the engaging frame, the left and right side form bodies fixed to the connected members on the left and right sides, and the bifurcated engaging frame. Since it is composed of a frame body, a special installation structure for connection and fixation and connection and fixation operation at the time of connection are simplified, and the members to be connected are connected and tightened while facing each other, and each member to be connected is strongly and integrally connected. It has the effect of being able to construct a structure.

In other words, it is possible to simplify the special installation structure for connecting and fixing and the connecting and fixing operation at the time of connection, and the structure in which the members to be connected are connected and tightened while facing each other and the members to be connected are firmly and integrally connected. can be configured, it is possible to respond to strain stress from all directions loaded on the joint part of the members to be connected, and there is an effect that the strength of the structure can be improved and the structural function can be maintained for many years .

A Connection fixtures 10, 10' Left and right connection cores 20, 20' Left and right side mold bodies 21 Upper notch 22 Lower notch 23 Opposing wall 30 Bifurcated engagement frame 31 Bifurcated arm 32 Base protrusion 40 Approximately H-shaped fixed frame 41 Web portions 42, 42' Left and right flange portions S Approximately H-shaped recessed spaces 100, 100' Connected members 101, 101' Opposing end face portions

Claims (3)

A connecting fixture for connecting and fixing left and right connected members in an end-face facing state,
Equipped with left and right side connecting cores for fixing opposite end surfaces of the left and right connected members,
The left and right connecting cores are
left and right side formwork bodies which are open upward and have upper and lower cutouts formed in the upper and lower ends of opposing walls facing each other for protruding a bifurcated arm and a base protruding part, respectively, which will be described later;
The left and right side frame bodies fixed to the opposing end faces of the left and right connected members are inserted from above the left and right side frame bodies in a state of facing each other, and are housed in the one side side frame body. a bifurcated engagement frame having a bifurcated arm and a base projecting portion protruding from the upper and lower notches of the square frame body on one side into the square frame body on the other side;
Left and right side molds fixed to the left and right connected members, and an H-shaped fixed frame formed so as to be freely fitable in a substantially H-shaped concave space in a plan view of the bifurcated engagement frame. ,
1. A fixing tool for connecting opposing members, characterized in that the left and right members to be connected can be connected and fixed in a state in which their ends face each other via left and right connecting cores. The substantially H-shaped concave space in the plan view of the left and right side form bodies and the forked engagement frame is formed by the left and right rear part spaces in the left and right side form bodies and the center part space of the fork arm. 2. A connecting fixture for opposing members according to claim 1. The left and right connecting cores are integrally connected by an H-shaped fixing frame body so that the left and right connected members can be connected and fixed via the left and right connecting cores. Item 3. A connecting fixture for opposing members according to item 2.

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