JPH10317472A - Connector for secondary structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a connector mutually abutting and connecting opposed secondary structures such as box bodies buried in an underground section such as a subway, a sewerage, etc., and a bridge, etc. SOLUTION: The connector for the secondary structure has a female type connector 1, in which first and second recessed grooves 4, 5 are formed to the outer circumference of a fitting cylindrical hole 2 for connection while pawl holes 6, 7 at every pair opened into each recessed groove 4, 5 are bored at places approximately orthogonal in the vertical direction and the horizontal direction on the inner circumference of the fitting cylindrical hole 2, engaging pawls 8 are fitted into each pawl hole 6, 7 respectively, elastic bodies 17 are interposed into each recessed groove 4, 5 from the outsides of the engaging pawls 8, and an external cylinder 20 is wound on the outsides of the elastic bodies 17. First and second pawl-receiving stepped grooves 13, 14 are formed to the outer circumference of a fitting shaft body 11 in response to the places of the engaging pawls 6, 7 constituted to the female type connector 1 while guide tapers 15 are formed at the outer peripheries of rear sections in the insertion direction of each pawl-receiving stepped groove 13, 14 and the insertion guide ends 16 of the pawl-receiving stepped grooves 13, 14. The connector is composed of the female type connector 1 and a male type connector 10 configured so that the engaging pawls 8 can be engaged freely from the female type connector 1 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a secondary product (hereinafter referred to as a "secondary structure") such as a concrete structure such as a casing or a bridge girder buried underground such as an underground passage, a sewer, and the like. The present invention relates to a connection device for a secondary structure.

[0002]

2. Description of the Related Art Conventionally, as a connecting device for connecting so-called secondary structures such as prefabricated secondary concrete products with their end faces attached to each other, for example, both ends of a shaft rod having a predetermined length are used. To form a pin-type fastener provided with a notch groove having elasticity that spreads outward, and these ends are simply fitted into female holes formed on the end faces of the opposed secondary structures, respectively. Of a structure to wear (Japanese Utility Model Application Laid-Open No. 59-1944)
In addition, a step portion bulging inside is formed on each of the end faces of the opposed secondary structures, and a tube receiving member whose one end side is closed is buried. A structure in which a base portion of a shaft-type connecting member having an engaging head is screwed, and a distal end portion of the connecting member is inserted into an opposing tubular receiving member to engage the engaging head with the step portion ( 63-1
No. 2984).

[0003]

However, in the case of a pin structure in which the tip is divided into two parts and is slightly widened to give elasticity, as in the former pin-type tie, it is troublesome to fit the male and female into the receiving hole. In addition, if the engagement after the insertion is simply pressed by the elasticity resilient force expanded by the cut groove, the engagement is likely to be loosened and may come off. Further, in the latter connection tool, a type of claw engagement is employed in which the engagement means is engaged with the stepped portion of the cylindrical strip receiving member by an engagement head formed at the tip of the shaft. Even in the case of the type with a dovetail, basically, as in the former, only the slit is provided at the tip end to provide resilience, so that the protruding toe becomes small and may come off. Moreover, since the connecting portion itself has a thin shaft configuration,
It is easily broken and is not suitable as a connector for large secondary structures such as large concrete products. In addition, depending on the shape of the secondary structure, it is necessary to reduce the outer diameter of the connection part and improve the strength However, there is a disadvantage that the outer diameter becomes large depending on the conventional structure. Further, a disadvantage of both embodiments is that a female fixing tool disposed on the opposing connecting surface, a connecting shaft portion inserted into the tubular receiving member,
Since the structure is widened by dividing the groove, it cannot be inserted unless a considerable pressing force is applied to the pin joint, requiring extremely troublesome work, necessitating an increase in the size of the connector itself, especially for large concrete products, etc. However, it was not easy in the case of a large secondary structure. Further, a structure in which the connecting shaft portion is divided into two or four at the tip and is slightly expanded to have elasticity is weak in the pulling force and easily detached.

[0004] A connecting device for a secondary structure according to the present invention has been devised in view of the above problems, and has a cylindrical female connector and a male connector buried in both joint surfaces. Separate anchor members are connected so as to be embedded in the concrete product, and the engagement is performed by engaging the engaging claws into the claw holes of the male connector for locking the female and male connectors. An object of the present invention is to provide a connection device for a secondary structure that solves the above-mentioned problems.

[0005]

In order to achieve the above-mentioned object, a secondary structure connecting apparatus according to the present invention comprises a secondary structure for connecting opposed secondary structures such as concrete products by surface contact. In a connection device to be embedded in an object, an approximately equal diameter fitting cylindrical hole for connection is formed in the front part, a screw hole for an anchor is provided in the rear part, the outer circumference is turned in the circumferential direction, and predetermined in the front and rear direction. While forming two first and second concave grooves which are displaced at intervals, a pair of pairs each facing the inner periphery of the fitting cylindrical hole in a vertical direction and in a horizontal position substantially orthogonal to the inner periphery of the fitting cylindrical hole. A claw hole is formed so as to open in each of the grooves, and an engaging claw is fitted into each of the claw holes. Then, an elastic body is interposed in each of the grooves from the outside thereof, and A cylindrical female connection formed by winding an outer cylinder at least outside the elastic body And forming two first and second claw receiving grooves in a ring shape on the outer periphery of the fitting shaft body corresponding to the engagement claw positions formed on the female connector, The gist of the present invention is that a guide taper is formed at the insertion-side tip and the peripheral edge of the claw receiving groove at the rear in the insertion direction, and a screw hole for an anchor is provided at the rear. With such a configuration,
By simply inserting and inserting the male connector into the female connector with a small pressing force, the male connector can be firmly integrated, and a complete retaining action can be achieved.

The respective forming intervals between the first and second concave grooves and between the first and second claw receiving grooves are substantially equal to the forming width of each of the concave grooves or the claw receiving grooves. The male and female coupling operation of the fitting shaft of the male connector with respect to the fitting cylindrical hole of the female connector is configured to operate simultaneously on the first side and the second side. Yes, it is configured to complete the coupling operation in a minimum of at least two strokes.

A guide taper is formed in the head of the engaging claw to oppose a guide taper formed on the male connector side in order to reduce a pushing force at the time of insertion. Since the guide tapers are inclinedly engaged with the guide taper formed at the rear portion, the female connector can be pressed with a small pressing force in the insertion direction, that is, the approach direction of the fitting shaft body of the male connector. It becomes possible to fit into.

The elastic body may be a corrosion-resistant synthetic resin such as a urethane-based soft filler or a corrosion-resistant rubber filled in the first and second grooves formed in a ring shape on the outer periphery of the claw hole. Since it is composed of a corrosion-resistant cushion, it has excellent water resistance, good corrosion and corrosion resistance, and a large effect of preventing water penetration into the female connector inside the claw hole.

Further, the elastic body may be formed of a plate-like member made of corrosion-resistant spring steel, and the pressing force from the female connector side to the male connector side may be increased. .

[0010] The anchor member may be constituted by a bolt body having a hook portion formed at the rear end.

As described above, the connecting device for connecting the secondary structures such as concrete blocks to each other has a female connecting structure in which an anchor member is integrated with a rear portion on one side end surface when the secondary structure itself is formed. The body, and on the other end surface, a structure in which a male connector is integrated with an anchor member integrated into the rear portion, and the female connector facing each end face when connecting opposing secondary structures. By positioning the male connector and the male connector, and moving one secondary structure toward the other secondary structure, the male connector can be male-female connected to the opposite female connector, When the pair of engaging claws formed in the first and second concave grooves on the mold connector side respectively pass the distal end portion of the fitting shaft body of the male connector, it once resists the pressing force of the elastic body. Into the claw hole of the female connector so as to pass through the outer diameter of the fitting shaft. Further, when the fitting shaft enters the fitting cylindrical hole of the female connector and the engaging claw reaches the first and second claw receiving groove forming portions formed on the outer periphery of the fitting shaft. Each engaging claw advances and fits into each claw receiving groove with the return pressing force of the elastic body, thereby completing a perfect male-male coupling state of both.

In the present invention, a pair of engaging claws in the vertical or horizontal direction are moved to the inner periphery of the female connector to engage the fitting shaft of the male connector. In this case, male and female engagements are sequentially generated, and the outer periphery of the male connector is simultaneously supported from up and down and left and right directions, so that the axes of the female connector and the male connector completely match, and the eccentric load The structure is less likely to occur.

Moreover, since the female connector and the male connector facing both end faces of the connected secondary structure have an anchor member of a predetermined length integrally connected to their rear ends, respectively, the pulling force is reduced. It has a structure that can withstand. In addition, if the male connection body that becomes a projection on one end surface of the secondary structure is separated from the anchor member by reverse screwing before the connection work as necessary, the periphery of the secondary structure is There are no protrusions, and handling such as transportation and storage becomes easy.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a connecting device for a secondary structure according to the present invention.

Referring to FIGS. 1 to 6, an elastic body for pressing and supporting the engaging claw formed on the female connector side is made of a corrosion-resistant cushioning material such as an elastic corrosion-resistant synthetic resin or a corrosion-resistant rubber. A first embodiment relating to a connection device for a secondary structure will be described.

As shown in FIG. 1, the female connector 1 is formed in a tubular shape, has a forward opening at the axial center portion C, and has an outer opening formed inward with substantially the same diameter. An anchor screw hole 3 which is provided with a mating tube hole 2 and communicates with the fitting tube hole 2 and opens rearward is screwed, and is provided on the outer periphery of the female connector 1 in a circumferential direction thereof. The first groove 4 and the second groove 5 are formed. These first and second grooves 4, 5 are respectively
Is formed with an interval W2 (W1 = W2) of the same width as the groove width W1 of FIG. A pair of claw holes 6 and 6 that face each other penetrate from the fitting cylinder hole 2 toward the outer periphery, and the other second concave groove 5 (the entrance side of the fitting cylinder hole 2) has a vertical A pair of claw holes 7, 7 facing each other in the direction are also penetrated from the fitting cylinder hole 2 toward the outer periphery. An engaging claw 8 is fitted into each of the claw holes 6 and 7 and fixed, and is formed in an appropriate shape such as a circle or a square corresponding to a shape of a claw portion 9 of the engaging claw 8 described later. ing. When these engaging claws 8, 8... Are visually recognized in the front-rear direction, they have a structure in which they form an opening angle of approximately 45 ° from the outer periphery of the female connector 1 and advance into the fitting cylinder hole 2 from all sides while forming an open angle. Are engaged with the male connector 10 to be described later to stabilize the axis of the male connector 10 with respect to the female connector 1 so that the load direction is always changed to the axial portion C. It is configured so that a stable male and female binding action can be achieved by matching the directions.

As shown in FIG. 4, the male connector 10 is formed with a substantially cylindrical fitting shaft 11 fixed in the fitting cylinder hole 2 of the female connector 1 and on the outside thereof. The flange 12 is provided. On the outer periphery of the fitting shaft 11, two first and second concave grooves 4, 5 formed on the outer periphery of the female connector 1 are provided.
The two first claw receiving grooves 13 and the second claw receiving grooves 14 corresponding to the formation positions of are formed. At the rear inner edge of the first and second claw receiving grooves 13, 14 in the insertion direction of the female connector 1 into the fitting cylinder hole 2, there is provided a guide taper 15 which is turned in the circumferential direction and inclined at about 45 °. And an insertion guide end 16 having the same shape as the guide taper 15 at the distal end.
Is formed.

The guide taper 15 and the insertion guide end 16 connect the fitting shaft 11 of the male connector 10 to the female connector 1.
In order to generate a pressing force for pushing the engaging claw 8 in contact with the claw hole 6 upward along the claw holes 6, that is, in the outer circumferential direction of the female connector 1, when inserted into the fitting cylindrical hole 2 It is. In the embodiment of the present invention, when the fitting shaft 11 of the male connector 9 is inserted into the fitting cylindrical hole 2 of the female connector 1, first, the insertion guide end 16 formed at the tip thereof is inserted. Engaging claw 8 in second concave groove 5 formed on the inlet side of female connector 1
To the extent that the fitting shaft 11 can pass through, it is retracted upward into the claw holes 6 and 7 against the pressing force of the elastic body 17 to the outer diameter portion, and further the fitting shaft 11 invades. After the elastic member 17 is advanced and fitted into the first claw receiving groove 13 formed on the distal end side by the return pressing force, the engagement is again performed by the guide taper 15 formed on the rear inner peripheral edge of the first claw receiving groove 13. The dowel 8 is pushed upward to pass through the fitting shaft 11. At this time, the fitting shaft 1
At the same time, the insertion guide end 16 pushes the engaging claw 8 formed inside the female connector 1 upward enough to pass through the fitting cylinder shaft 11 against the pressing force of the elastic body 17. The engaging claw 8 formed on the inlet side of the female connector is also raised upward against the pressing force of the elastic body by the guide taper 15 formed in the first claw receiving groove formed on the tip side of the mold connector 1. Are pushed up, and when the fitting shaft body 11 further enters, the respective engaging claws 8, 8... Are simultaneously placed at positions where the corresponding first and second concave grooves coincide with the first and second claw receiving grooves. The claw portions 9 advance into the claw holes 6 and 7, respectively, and are engaged with the first and second claw receiving grooves 13 and 14, respectively. That is, each of the engaging claws 8, 8,... Formed in the connecting device for the secondary structure according to the present invention is capable of perfect male and female coupling by a two-stroke operation.

The engaging claw 8 has a claw portion 9 formed in the female connection body 1 and fitted in the claw holes 6 and 7, and an upper portion of the claw portion 9 before the male and female connection to the male connection body 10. The female connector 1 is formed by a flange 18 for preventing the female connector 1 from dropping into the fitting cylindrical hole 2. The claw 9 corresponds to the shape of the claw holes 6, 7 in a columnar shape ( 5) or a prism (see FIG. 6). As described above, the engaging claw 8 is provided in the fitting cylindrical hole 2 of the female connector 1 in the male connector 10.
When the fitting shaft body 11 is inserted, each of the engaging claws 8, 8.
A guide taper 19 is formed to abut the insertion guide end 16 and the guide taper 15 on the male connector 10 side when retracting and retracting the claw holes 6 and 7 above. The engaging and retracting action of each of the engaging claws 8, 8... Is caused by the inclined contact posture of the insertion guide end 16 and the guide taper 15 on the male connector 10 side and the guide taper 19 formed on the engaging claw 8 side. Will be performed more smoothly. The engaging claw 8 is desirably formed in an elliptical or square pillar shape so that the claw portion 9 does not rotate or come off in the claw holes 6 and 7.

As shown in FIG. 2, the elastic member 17 used in the connecting device for the secondary structure according to the first embodiment has claw holes formed in the first and second concave grooves 4 and 5, respectively. The engaging claws 8 are inserted into the grooves 6 and 7 from above, and the flanges 18 are engaged with the outer edges of the concave grooves 4 and 5, and then filled from above. It is composed of a corrosion-resistant cushion such as a corrosion-resistant synthetic resin such as a urethane tar-based soft filler or a corrosion-resistant rubber. An outer cylinder 20 for preventing each member from being detached from the female connector 1 is wound around the outer periphery of the elastic body 17. Exterior is required.

FIG. 7 shows another embodiment of the above-mentioned elastic body 17, in which a plate-like member 21 made of corrosion-resistant spring steel is used as the elastic body 17, instead of using a simple filler. An example in which the dowel 8 is configured on the head is shown. That is, the plate member 21 used in the present embodiment is
And a pair of spring legs 23 for imparting elasticity to the engaging claw 8 between the base 22 and the outer tube 20 from the base 22. Such a plate-like member 21 is desirably made of a corrosion-resistant alloy spring steel. The plate-like member 21 always has spring legs 23, 23.
The engagement claws are urged toward the shaft center portion C by the insertion of the mating shaft pair 11 of the male connection body 10, and the engagement claws 8 are pressed against the urging force by the insertion of the fitting shaft pair 11 on the outer periphery of the female connection body 1. It is made to push up in the direction.

The female connector 1 and the male connector 10 configured as described above are arranged such that when the latter fitting shaft 11 is inserted into the former fitting cylinder hole 2, the inner circumference and the outer circumference of the two. It is configured such that a slight gap is formed between the surfaces. The gap is formed in the circumferential direction (vertical direction in the figure) and the axial direction (horizontal direction in the figure) of the connecting device, and the connecting device for a secondary structure according to the present invention is mounted on the secondary structure. In the case, the gap S1 in the axial direction
Adjusts the expansion and contraction due to the temperature difference of the secondary structure and the base concrete tolerance, and the gap S2 in the circumferential direction has the female connector 1 and the male connector 10 mounted in the secondary structure X. This is to absorb the installation tolerance in the case and the bending of the screw portion 24a of the anchor member 24, and to prevent the eccentricity of the shaft portions C of both. Generally, when manufacturing rolled bolts,
The screw portion often bends slightly, and when this is used as the anchor member 24, the gap S as described above is used.
2 can also absorb the bending of the screw portion 24a. Note that the gaps S1 and S2 are filled with a corrosion-resistant rubber material such as eye gas at the time of attachment to the secondary structure X, thereby sealing the interiors of the female connector 1 and the male connector 10 with each other. Since the gaps between the parts are completely covered, the corrosion resistance is not impaired.

Next, the operation of the connecting device for a secondary structure according to the present invention will be described with reference to FIGS. First, when installing the connecting device, an anchor member 24 as shown in FIGS. 8 and 9 is connected to a predetermined portion of one side end surface of a concrete to be a secondary structure X, such as a secondary concrete product, at the time of casting. The integrated female connector 1 and the male connector 1 having an anchor member 24 connected and integrated to the other end surface.
If it is set to 0, it will be in an embedded state as a whole.

Here, the secondary structures X sequentially arranged
The connection of the groups is performed by fitting the fitting cylindrical hole 2 of the female connector 1 located on one end face of one secondary structure X and the male connector 10 facing the other end face of the other secondary structure X. The joint shaft 11 is disposed so as to be on the axis C.

Thereafter, if one of the secondary structures X is moved by the appropriate means to the other of the secondary structures X and is brought into contact therewith, the fitting shaft 11 of the male connector 10 protruding to one side is brought about. Are inserted and fitted into the fitting cylinder holes 2 of the female connector 1 facing each other, and each of the pairs (four in the example shown) projecting around the fitting shaft 11 from the vertical and horizontal directions. The engagement claws 8, 8... Are first restricted in outer shape by the insertion guide end 16 of the fitting shaft body 11 and the guide taper 15 formed in each of the first and second claw receiving step grooves 13, 14, and the female connector A position where the flange 18 of the male connector 10 closes the fitting cylindrical hole 2 of the female connector 1 while passing through the claw holes 9 while retreating and retracting against the elastic force of the elastic member formed on the one side. , When all the engagement claws 8,
8 are pushed into the fitting cylindrical hole 2 by the return elastic force of the elastic body 17, and the first and second claw receiving grooves 1 of the male connector 10 are
Male and female are bonded to 3, 14 respectively.

That is, when connecting a plurality of secondary structures X, X..., Such as a rectangular concrete block for constructing a sewer tunnel, etc., the secondary structure X is buried in one end face of one secondary structure X. The fitting shaft 11 of the male connector 12 on the other end face of the other secondary structure X is opposed to the fitting cylinder hole 2 of the female connector 1 facing the front.

Next, when one of the secondary structures X is pressed against the other secondary structure X, the male connector 10 is fitted into the fitting cylindrical hole 2 of the female connector 1 in the projected state. The coaxial body 11 is inserted and the male and female are joined. The female connector 1
Are engaged in the first and second claw receiving grooves 13, 14 on the male connector 10 side from the first and second concave grooves 4, 5 side. Engage with the claw. In this case, since the guide taper 19 for facilitating the ascending operation is formed on the inner peripheral edge of the engaging claw 8 on the rear side in the intrusion direction as described above, the fitting of the male connector 10 on the guide taper 19 is performed. The inclined pressing force of the first and second claw receiving grooves 13, 14 on the shaft body 11 side and the guide taper 15 is converted into an upward pressing force, and the engaging claws 8, 8 are formed.
... It is slightly retracted and retracted into the claw hole 9 against the elastic force of the elastic body 17 (plate-like member 21). With the engagement claws 8, 8... Engaged with the corresponding first and second claw receiving grooves 13, 14, the coupling between the adjacent secondary structures X, X is completed,
If the secondary structures X are sequentially arranged, a tunnel road or the like can be constructed (see FIG. 10).

Further, as shown in FIG.
The male connector 10 disposed on one side of the screw member 2 is reversely screwed into the anchor member 24 embedded in the back when not in use.
If the secondary structure X is removed from the secondary structure X, there is no protrusion on the secondary structure X, and handling such as storing and carrying work becomes easy. In this case, if necessary, the male connector 10 may be screwed into the screw portion of the anchor member 24 to prepare for use.

As shown in FIG. 12 (a), when the anchor member 24 uses a deformed reinforcing bar, the anchor member 24 may be wrapped by a predetermined length at the buried central portion of the secondary structure X. Good. Further, as shown in FIG. 12B, the anchor member 24 is used in a state in which the distal end portion is a predetermined length reaching the embedded central portion of the secondary structure X, and the U-shaped bent portion 24b is wrapped. May be.

The connecting device for a secondary structure according to the present invention can be formed not only of steel but also of hard plastic or ceramic material, etc. It can be dealt with by changing the material. Although the shape of the secondary structure X has been described as being square in the drawings, it is needless to say that the secondary structure X can correspond to various shapes such as a round shape and a triangular shape.

[0031]

The connecting device for a secondary structure according to the present invention comprises:
As described above, a fitting cylindrical hole having a substantially equal diameter for connection is formed in the front part, a screw hole for an anchor is provided in the rear part, and the outer circumference is turned in the circumferential direction, and is spaced at a predetermined interval in the front-rear direction. A pair of first and second concave grooves having shifted positions are formed, and a pair of claw holes facing each other in a vertical direction on an inner periphery of the fitting cylindrical hole and a horizontal position substantially orthogonal to the same are respectively formed. After drilling so as to open in each of the above-mentioned concave grooves, and after fitting an engaging claw into each of these claw holes, an elastic body is interposed in each of the concave grooves from the outside thereof, and at least the elastic body is provided. A cylindrical female connector formed by winding an outer cylinder on the outer side of the outer peripheral surface of the female connector, and two rings are formed on the outer periphery of the fitting shaft corresponding to the positions of the engaging claws formed on the female connector. First and second claw receiving grooves are formed, and guide teeth are provided at the insertion-side tip of the fitting cylinder shaft and the rear peripheral edge of each claw receiving groove in the insertion direction. Par is formed, and since those constituted by the male connector of a substantially plug-like cylindrical shape formed by providing an anchor screw holes in the rear, never leaving the easy after male and female coupling.

Further, by attaching an anchor member to the rear part of the female connector and the male connector, a structure in which the female connector and the male connector are buried together with the anchor member on each end face when the secondary structure is formed. In this way, a connection that does not cause slippage together with the engagement of the engagement claw is enabled. In addition, the connection work can be performed only by inserting the male connector fitting shaft into the fitting cylindrical hole of the female connector in two strokes. Things can be connected.

Further, in the present embodiment, the pawl engaging action by a total of four engaging pawls is provided in the first and second concave grooves of the female connector, each pair being opposed to each other and having different construction directions. Therefore, an eccentric load is not generated on the shaft center after the connection of the female connector and the male connector, and a stable male and female connection can be obtained. In addition, the arrangement of the engaging claws as described above, that is, from the first and second concave groove sides of the female connector to the first and second claw receiving groove sides of the male connector from four directions of vertical and horizontal directions. Since the structure is such that the claw engagement is obtained by the forward and backward movement of the male connector, the diameter of the male connector and the female connector can be reduced, and the connection device for the secondary structure can be reduced in size. .

The female connector has a structure in which the engaging claws are inserted from the outside, that is, from the first and second concave groove sides, and each elastic body is mounted and assembled on the outside thereof. Is easy. Therefore, in the conventional connecting device, it is not easy to disassemble the connecting device once the male and female connections are generated, and in the connecting device using the liquid sealing material, it takes a long time to recover. However, according to the connection device for a secondary structure according to the present invention, the effect obtained by implementing the present invention is extremely large, such as easy disassembly simply by removing the outer cylinder and easy reuse.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view showing an embodiment of a connecting device for a secondary structure according to the present invention, showing a state in which a female connector and a cylindrical male connector are male and female joined together, and FIG. (B) is a side view, and (c) is a rear view.

FIGS. 2A and 2B also show a state in which the female connector and the male connector are bonded together. FIG. 2A is a side sectional view, FIG. 2B is a sectional view taken along line AA in FIG. ) Is also BB
It is a line sectional view.

FIG. 3 is a partial sectional side view of the female connector.

FIG. 4 is a partial side sectional view of the male connector.

5A and 5B are explanatory views showing one embodiment (columnar shape) of the engaging claw, wherein FIG. 5A is a plan view, FIG.
(C) is a front view.

6A and 6B are explanatory views showing another embodiment (square prism) of the engaging claw, wherein FIG. 6A is a plan view, FIG.
(C) is a front view.

7A and 7B show another embodiment using a plate-like member as an elastic body, wherein FIG. 7A is a partial side sectional view, FIG. 7B is a sectional view taken along line DD of FIG. Is a sectional view taken along line EE.

FIG. 8 is a partial side sectional view showing a state in which an anchor member is screwed and connected to each of the male and female connectors according to the present invention so as to be male and female.

FIG. 9 is a side view showing the structure of the anchor member.

FIG. 10 is an explanatory view for sequentially connecting secondary structures in a rectangular housing shape.

FIG. 11 is an explanatory diagram of a connection state.

FIG. 12 is an explanatory view according to another embodiment showing an anchor member to be screw-connected to a female connector and a male connector in relation to a secondary structure.

FIG. 13 is an explanatory view according to still another embodiment, showing an anchor member that is screw-connected to the female shaft connecting member and the male connecting member in relation to a secondary structure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 female connector 2 fitting cylinder hole 3 screw hole for anchor 4 first concave groove 5 second concave groove 6 claw hole (first side) 7 claw hole (second side) 8 engagement claw 9 claw part 10 male Mold connector 11 Fitting shaft body 12 Flange 13 First claw receiving groove 14 Second claw receiving groove 15 Guide taper 16 Insertion guide end 17 Elastic body 18 Flange 19 Guide taper 20 Outer cylinder 21 Plate member 22 Base 23 Spring leg 24 Anchor member X Secondary structure

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[Procedure amendment]

[Submission date] July 7, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view showing an embodiment of a connecting device for a secondary structure according to the present invention, showing a state in which a female connector and a cylindrical male connector are male and female joined together, and FIG. (B) is a side view, and (c) is a rear view.

FIGS. 2A and 2B also show a state in which the female connector and the male connector are bonded together. FIG. 2A is a side sectional view, FIG. 2B is a sectional view taken along line AA in FIG. ) Is also BB
It is a line sectional view.

FIG. 3 is a partial sectional side view of the female connector.

FIG. 4 is a partial side sectional view of the male connector.

5A and 5B are explanatory views showing one embodiment (columnar shape) of the engaging claw, wherein FIG. 5A is a plan view, FIG. 5B is a side view,
(C) is a front view.

FIGS. 6A and 6B are explanatory views showing another embodiment (square prism) of the engaging claw, in which FIG. 6A is a plan view, FIG.
(C) is a front view.

7A and 7B show another embodiment using a plate-like member as an elastic body, wherein FIG. 7A is a partial side sectional view, FIG. 7B is a sectional view taken along line DD of FIG. Is a sectional view taken along line EE.

FIG. 8 is a partial side sectional view showing a state in which an anchor member is screwed and connected to each of the male and female connectors according to the present invention so as to be male and female.

FIG. 9 is a side view showing the structure of the anchor member.

FIG. 10 is an explanatory view for sequentially connecting secondary structures in a rectangular housing shape.

FIG. 11 is an explanatory diagram of a connection state.

FIG. 12 shows an anchor member that is screw-connected to the female connector and the male connector in relation to a secondary structure;
(A) is an explanatory view according to another embodiment, and (b) is an explanatory view according to still another embodiment.

[Description of Signs] 1 Female connector 2 Fitting cylindrical hole 3 Screw hole for anchor 4 First concave groove 5 Second concave groove 6 Claw hole (first side) 7 Claw hole (second side) 8 Engagement claw 9 Claw portion 10 Male connector 11 Fitting shaft body 12 Flange 13 First claw receiving groove 14 Second claw receiving groove 15 Guide taper 16 Insertion guide end 17 Elastic body 18 Flange 19 Guide taper 20 Outer cylinder 21 Plate member 22 Base 23 Spring leg 24 Anchor member X Secondary structure

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 5

[Correction method] Change

[Correction contents]

FIG. 5

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Fig. 6

[Correction method] Change

[Correction contents]

FIG. 6

Claims (6)

[Claims] 1. A connecting device embedded in a secondary structure for connecting opposed secondary structures such as concrete products by surface contact, wherein a substantially cylindrical fitting cylindrical hole for connection is formed at a front portion. At the same time, a screw hole for an anchor is provided in the rear part, and the outer periphery is turned around in the circumferential direction and shifted at predetermined intervals in the front-rear direction.
The first and second grooves of the strip are formed, and a pair of claw holes facing each other in a vertical direction on an inner periphery of the fitting cylindrical hole and a horizontal position substantially orthogonal to the groove are respectively formed in each of the grooves. After the engaging claws are respectively fitted into the claw holes, an elastic body is interposed in each of the concave grooves from the outside thereof, and at least outside the elastic body is provided outside the elastic body. A cylindrical female connector formed by winding a tube, and two first and second rings formed on the outer periphery of the fitting shaft corresponding to the positions of the engagement claws formed on the female connector. A substantially plug-shaped cylinder having a claw receiving groove formed therein, a guide taper formed at an insertion end of the fitting cylinder shaft and a rear peripheral edge of each claw receiving groove in the insertion direction, and a screw hole for an anchor provided at a rear portion. A connection device for a secondary structure, comprising a male connector having a shape. 2. A forming interval between the first groove and the second groove, and between the first claw receiving groove and the second claw receiving groove is substantially equal to a forming width of each concave groove or the claw receiving groove. The connecting device for a secondary structure according to claim 1, wherein 3. The secondary structure according to claim 1, wherein a guide taper is formed on a head of said engaging claw to oppose the guide taper on said male connector side to reduce a pushing force at the time of insertion. Object connection device. 4. A corrosion-resistant synthetic resin such as a urethane-based soft filler or a corrosion-resistant rubber or the like filled in the first and second grooves formed by the elastic body formed in a ring shape around the claw hole. A connection device for a secondary structure, which is a conductive cushion. 5. The connection device for a secondary structure according to claim 1, wherein the elastic body is a plate-like member formed of corrosion-resistant spring steel. 6. The connection device for a secondary structure according to claim 1, wherein the anchor member is a bolt body having a hook portion formed at a rear end portion.