TWI768669B - Attachment of articles and attachment structure using the same - Google Patents

Abstract

In the coupling device (4) that can be inserted into the hollow part of the object (2), a plurality of block parts (10) are provided, each of which includes: fastening parts (11, 21) constituting the main body part (41); The locking portions (12, 22) of the insertion portion (42), the connecting portions (13, 23) constituting the neck portion (43), and the fastening portions (11, 21) are: It can be displaced between the basic state with a gap and the working state in which it is in close contact with the inner surface of the hollow part, and the locking parts (12, 22) can be displaced integrally with the fastening parts (11, 21). The parts (11, 21) are through parts (3a) that can pass through the counterpart object (3) when in the basic state, but cannot pass through the through parts (3a) when in the active state, by the operation of the operating member (5) from the outside The articles (2, 3) are connected by displacing the fastening parts (11, 21) from the basic state to the working state.

Description

Attachment of articles and attachment structure using the same

The present invention relates to a connecting tool and the like for connecting a target article such as a hard pipe having a hollow portion to a counterpart article such as a plate material.

A connecting structure for connecting a target article with a hollow portion and a counterpart article is known as a structure for connecting a rigid tube used in the display of products, etc., and a plate-shaped bracket, and a cylindrical part having a dividing line is inserted into the rigid tube. Insert a tapered nut into the cylindrical part from the opposite side of the bracket, and then screw the bolt toward the nut from the bracket side to expand the cylindrical part in the radial direction from the inside. The peripheral side is fastened to the hard pipe, thereby connecting the hard pipe and the bracket (refer to Patent Document 1).

[Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2002-31112

In the conventional connection structure, one side of the bracket needs to be side support the pipe and screw in the bolts from the opposite side of the bracket. Therefore, the work is laborious and time-consuming. When the bracket is too large, the operator cannot operate the opposite side of the bracket, or when the operation is difficult, the hard pipe cannot be connected.

Here, an object of the present invention is to provide a coupling device or the like capable of smartly coupling an object to be coupled to an object serving as the other party from one side.

A coupling tool according to one aspect of the present invention is for connecting a target article having a hollow portion opened at least on one end side to a counterpart article having a penetration portion. It has a main body part into which the hollow part can be inserted, an insertion part which is arranged on one end side of the main body part and protrudes from the hollow part and can pass through the penetration part; Inserts thinner neck. The part from at least a part of the main body part through the neck to the front end of the insertion part is divided into a plurality of pieces, each of which includes a fastening part constituting the main body part and a locking part constituting the insertion part. part, and the connecting part constituting the neck. The fastening portion is provided so as to be variable between a basic state in which a gap is placed on the inner surface of the hollow portion, and an action state in which it is wider than the basic state and is in close contact with the inner surface of the hollow portion. bit. The locking portion is integrally displaceable with the fastening portion, and can pass through the penetration portion when the fastening portion is in the basic state, but cannot pass through the penetration portion when the fastening portion is in the working state. The main body part is provided with an operation input part which, by contacting with the operation member, sends data from the object to the object. The operating force of the operating member operated outside is transmitted to the fastening portion of each block portion, and the fastening portion is displaced from the basic state to the acting state.

A connection structure of one aspect of the present invention is a connection structure in which a target article having a hollow portion opened at least at one end side is connected to a counterpart article having a penetration portion through the connection tool of the above aspect. The said insertion part and the said neck part are protruded toward the said one end side of the said object article, and the said main body part of the said coupling tool is inserted into the said hollow part of the said object article. The insertion portion protrudes from one side of the penetration portion to the opposite side of the penetration portion through the penetration portion. The fastening portion is changed from the basic state to the acting state by the operation of the operating member. The target article is fastened from the inside of the hollow portion by the fastening portion, and the locking portion is engaged around the penetration portion to prevent the coupling tool from falling off the target article.

1: Connection structure

2: Hard pipe (target item)

2a: extraction hole

3: Siding (the other party's item)

3a: Through hole (through part)

3A: Wall member (object of the opponent)

3b: Through communication (through part)

3c: Expand the trench

4: Connector

5: Bolt (operating member)

10: Part 1

10A: Part 1

10B: Part 1

11,21: Fastening part

12,22: Locking part

13,23: Connector

14: Support part

14a: Front

15: Groove

15a: Stop surface

16, 26: Joint surface (operation input part)

20: Part 2

20A: Part 2

20B: Part 2

25: Shaft

25a: Stop surface

27: Retreat Department

28: Cut face

29: Screw hole (operation input part)

30: Through hole

31: Sliding part

41: body part

42: Insertion part

43: Neck

44: Cone

[FIG. 1] A perspective view showing a part of a connection structure according to one aspect of the present invention in a cutaway manner.

[Fig. 2] A front view of the coupling.

[Fig. 3] The bottom view of the coupling tool.

[Fig. 4] A left side view of the coupling.

[Fig. 5] A perspective view showing the coupling tool in a disassembled state.

[ Fig. 6 ] A perspective view showing the connector in an assembled state.

[Fig. 7] shows the connection when the fastening part of the connection tool is in the basic state structural drawing.

[ Fig. 8 ] A diagram showing the connection structure when the fastening portion of the connection tool is in an active state.

[Fig. 9] A diagram showing an example of the relationship between the taper surface of the coupling device and the penetration portion of the counterpart article when the fastening portion of the coupling device is in the basic state.

[ Fig. 10 ] A diagram showing an example of the relationship between the tapered surface of the coupling device and the penetrating portion of the counterpart article when the fastening portion of the coupling device is in an active state.

[ Fig. 11 ] A diagram showing a modification of the coupling tool.

[Fig. 12] A diagram showing another modification of the coupling tool.

[Fig. 13] A diagram showing a modification of the penetration portion.

FIG. 1 shows an example of a connection structure according to an aspect of the present invention. The connecting structure 1 shown in the figure connects the rigid pipe 2, which is one example of the target article, and the wall plate 3, which is one example of the counterpart article, to each other through a coupling tool 4 inserted into the rigid pipe 2. The coupling tool 4 can be operated from the outside of the hard pipe 2 by the bolt 5 which is one example of the operating member. As long as one side of the wall plate 3 is operated along with the operation of the bolt 5 , the rigid pipe 2 can be connected to the wall plate 3 or removed from the wall plate 3 . One example of the product of the rigid pipe 2 is a hanger rigid pipe for suspending and supporting various items such as ornaments. However, the target article can be appropriately changed as long as there is a hollow portion on the one end side into which the coupling tool 4 can be inserted. Although the wall plate 3 is drawn in a disk shape in the first figure, the shape and size of the wall plate 3 can be appropriately set.

FIGS. 2 to 6 show the details of the coupling tool 4 . again Hereinafter, the X-axis direction in FIG. 2 is referred to as the front-rear direction of the coupling device 4 , the Z-axis direction in FIG. 2 is referred to as the vertical direction of the coupling device 4 , and the Y-direction perpendicular to the paper surface in FIG. 2 is referred to as the vertical direction of the coupling device 4 . In the left-right direction of the coupling device 4, the left side in the X-axis direction is referred to as the front end side of the coupling device 4, and the opposite side is referred to as the rear end side. However, those directions are only defined for the convenience of description, and do not mean the front-rear, left-right, and up-down relationships when the coupling tool 4 is used.

As is apparent from FIG. 2 and FIG. 5 , the coupling tool 4 is an assembly part in which a pair of block parts 10 and 20 are combined. The blocks 10, 20 are different parts that are separable from each other. Hereinafter, the block portion 10 on the upper side in FIG. 2 will be referred to as the first block portion, and the block portion 20 on the lower side will be referred to as the second block portion for distinction. 10, 20. However, the terms "first" and "second" are only for distinguishing users of the block units 10 and 20, and do not intend other concepts such as a master-subordinate relationship, a precedence relationship, and the like.

FIGS. 2 to 4 show a basic state in which the block parts 10 and 20 are closely combined with each other. In the basic state, the connector 4 includes a main body portion 41 that can be inserted into the rigid tube 2 , an insertion portion 42 arranged coaxially with the distal end side of the main body portion 41 , and a neck connecting the main body portion 41 and the insertion portion 42 . Section 43. The main body portion 41 is a shaft-shaped portion that can be inserted into the inside of the rigid tube 2 . The outer peripheral surface of the main body portion 41 has a tapered shape gradually tapering toward the front end side. The outer diameter of the main body portion 41 is set to such an extent that some clearance can be formed with respect to the inner peripheral surface of the hard pipe 2 in the basic state.

The insertion portion 42 is a short shaft-shaped portion of a size capable of passing through the through hole 3 a ( FIG. 7 ) provided in the wall plate 3 . The outer diameter of the insertion portion 42 will be described later. The neck 43 is coaxial with the body part 41 and the insertion part 42, and is more than the insertion part. The inlet 42 has a smaller diameter. A tapered surface 44 that tapers toward the rear end side of the coupling tool 4 is formed at the connecting portion between the insertion portion 42 and the neck portion 43 (see also FIGS. 9 and 10 ). In addition, one example of the through hole 3a is formed in a circular shape, but the through hole 3a may be formed in a polygonal shape such as a square shape. A chamfering process of an appropriate size may be given to the outer peripheries of the front ends of the main body portion 41 and the insertion portion 42 .

The block portions 10 and 20 basically have a shape in which the coupling tool 4 is divided into two along the axis AX in the range from the main body portion 41 through the neck portion 43 to the distal end of the insertion portion 42 . As a result, the first block portion 10 is provided with the fastening portion 11 , the locking portion 12 , and the connecting portion 13 constituting the substantially half-circumference of each of the main body portion 41 , the insertion portion 42 , and the neck portion 43 . However, the rear end side of the first block portion 10 is provided with the support portion 14 which constitutes the entire circumference of the rear end side of the coupling tool 4 . The front end side of the support part 14 is provided with the groove part 15 which penetrates the 1st block part 10 in the left-right direction. The inner peripheral surface of the groove portion 15 is curved as drawn as a cylindrical surface, and one end along the curved direction intersects the front surface 14a of the support portion 14, and the opposite end intersects the stopper surface 15a. The stopper surface 15 a intersects the joint surface 16 facing the second block portion 20 . The joint surface 16 extends from the fastening portion 11 through the connecting portion 13 to the front end of the locking portion 12 . The joint surface 16 is a plane parallel to the axis AX of the coupling tool 4 .

On the other hand, the second block portion 20 is provided with the fastening portion 21 , the locking portion 22 , and the connecting portion 23 constituting the semi-circumference of the other portions of the main body portion 41 , the insertion portion 42 , and the neck portion 43 . On the rear end side of the second block portion 20 , the shaft portion 25 which can be inserted into the groove portion 15 of the first block portion 10 is directed in a direction perpendicular to the axis AX of the coupling tool 4 . The shaft portion 25 is provided with a stopper surface 25a that faces the stopper surface 15a when inserted into the groove portion 15 . The joint surface 16 extends from the fastening portion 11 through the connecting portion 13 to the front end of the locking portion 12 . The stopper surface 25 a intersects with the joint surface 26 facing the first block portion 10 . The joint surface 26 extends from the fastening portion 21 through the connecting portion 23 to the front end of the locking portion 22 . The joint surface 26 is a plane parallel to the axis AX of the coupling tool 4 . Furthermore, in the connection position between the fastening part 21 and the shaft part 25, the escape part 27 which produces a clearance gap with the front surface 14a of the support part 14 of the 1st block part 10 is provided.

As is apparent from FIG. 5 , the block parts 10 and 20 are combined with each other by inserting the shaft part 25 of the second block part 20 into the groove part 15 of the first block part 10 from the side. In this combined state, the basic state in which the joint surfaces 16 and 26 of the block parts 10 and 20 are in close contact with each other as shown in FIGS. 2 to 4, and the shaft part 25 as shown in FIG. The coupling tool 4 is deformed in a state in which the joint surfaces 16 and 26 are separated from each other as indicated by the arrow A while rotating within the groove portion 15 .

Returning to FIGS. 2 to 4 , a planar cutout surface 28 parallel to the axis AX is provided on the outer periphery of the second block portion 20 . Further, the second block portion 20 is provided with a screw hole 29 through which the fastening portion 21 penetrates from the cutout surface 28 to the joint surface 26 . The screw hole 29 is used for screwing the bolt 5 into the user, and an example of the axis thereof is perpendicular to the joint surface 26 . Moreover, the processing of the screw hole 29 can be facilitated by the cut surface 28, and the cut surface 28 can be omitted if not necessary.

Next, how to use the coupling tool 4 will be described with reference to FIGS. 7 and 8 . In addition, when the coupling 4 is used, it is necessary to provide the extraction hole 2a for passing the bolt 5 in the outer periphery of the hard pipe 2 and the through hole 3a for passing the insertion portion 42 in the wall plate 3 in advance. The through hole 3a is an example of a through portion. Instead of the through holes 3a, a groove penetrating the wall plate 3 may be used as a through portion.

In order to connect the hard pipe 2 to the wall plate 3, first, as shown in FIG. 7, the main body portion 41 of the coupling device 4 is inserted into the inner circumference of one end side of the hard pipe 2, and the bolt 5 is inserted through the extraction hole 2a. Screw into the screw hole 29 of the second block portion 20 . However, the bolt 5 may be screwed into the range in which the connection tool 4 can maintain the above-mentioned basic state. From this state, the insertion portion 42 is passed through the through hole 3 a from one side (hereinafter referred to as the front side) of the wall plate 3 , and the entire insertion portion 42 protrudes toward the opposite side (hereinafter referred to as the back side) of the wall plate 3 . After that, as shown in FIG. 8 , the bolts 5 are screwed in and the first block portion 10 is pushed in. The pushing force (operation force of the bolt 5 ) at this time is transmitted to the first block portion 10 through the joint surface 16 , and the reaction force generated on the joint surface 16 is transmitted to the second block portion 20 through the screw hole 29 . Thereby, the block parts 10 and 20 relatively rotate around the circumference of the shaft part 25 . By screwing in the bolt 5 until the fastening parts 11 and 21 fasten the hard pipe 2 from the inside, the hard pipe 2 can be restrained from being pulled out from the coupling tool 4 . The state of FIG. 8 corresponds to the operation state of the fastening parts 11 and 21 . In addition, the screw hole 29 and the joint surface 16 of the first block portion 10 can transmit the operating force of the bolt 5 to the fastening parts 11 and 21 by being in contact with the bolt 5, so that the fastening parts 11 and 21 can be fully connected. 21 A function of one example of the operation input unit that is shifted from the basic state to the working state.

On the other hand, the locking portions 12 and 22 and the connecting portions 13 and 23 are also rotated integrally with the fastening portions 11 and 21 by the tightening of the bolts 5 . Therefore, on the back side of the wall plate 3 , each of the locking portions 12 and 22 is displaced radially outward to expand the insertion portion 42 . At this time, the outer diameter of the insertion portion 42 is larger than the through hole 3a so that it cannot pass through the through hole 3a, and in the basic state of FIGS. 2 to 4, the insertion portion 42 is smaller than the through hole 3a and becomes It can pass through the through hole 3a. In addition, the neck portion 43 is sufficient so as not to interfere with the edge of the through hole 3a. finely formed. Therefore, in the working state of Fig. 8, the locking portions 12 and 22 are engaged around the through hole 3a, and it becomes impossible to extract the coupling 4 from the through hole 3a. Thereby, the hard pipe 2 and the wall plate 3 are connected to each other.

FIGS. 9 and 10 show an example of the relationship between the tapered surface 44 of the coupling tool 4 and the through hole 3 a of the wall plate 3 . As shown in FIG. 9, when the insertion portion 42 of the coupling tool 4 is passed through the through hole 3a, the tapered surface 44 is located at a position retreating toward the axis AX side than the edge of the through hole 3a. On the other hand, when the block parts 10 and 20 are opened and the fastening parts 11 and 21 are deformed to the working state, the tapered surface 44 comes into contact with the edge of the through hole 3 a, and the entire coupling tool 4 is further moved along with the block parts 10 and 20 . As shown by the arrow F, it is pulled toward the front end side in the front-rear direction. Therefore, the rigid pipe 2 can be brought into contact with the wall plate 3 and the stability of the rigid pipe 2 can be improved.

The material of the coupling tool 4 can be appropriately selected according to the structure and material of the rigid pipe 2 as the target article and the wall plate 3 as the counterpart article. For example, the coupling tool 4 may be composed of a metal material such as iron, stainless steel, aluminum steel, and brass, or the coupling device 4 may be composed of a non-metallic material such as resin. The material of the coupling tool 4 can be appropriately selected according to the rigidity and strength required for the coupling device 4 .

As is apparent from the above description, according to the coupling device 4 of the present aspect, the rigid pipe 2 can be connected to the wall plate 3 skillfully only by the work on the front side of the wall plate 3 . Since the work of inserting the bolt from the back side of the wall plate 3 is not required, the rigid pipe 2 can be connected even if the work on the back side of the wall plate 3 is difficult or impossible. Therefore, when the wall panel 3 is arranged on the wall surface, top surface, or bottom surface of a structure such as a building, for example, as long as the The hard pipe 2 can be connected by a gap in which the insertion portion 42 can be inserted on the back side of the wall plate 3 .

The present invention is not limited to the above-described forms, and includes forms to which appropriate deformations or changes are applied. For example, in the above-mentioned form, it is not necessary for the block parts to be different parts that are separable from each other. As long as the range from at least a part of the main body part of the coupling tool through the neck to the distal end of the insertion part can be divided into a fastening part, a connecting part, and a locking part, the block part can take any suitable form. For example, as shown in FIG. 11, a through hole 30 may be formed at the rear end side of the main body portion 41, and a sliding groove may be formed from the through hole 30 toward the front end of the insertion portion 42, thereby forming the first block portion 10A, and The second block portion 20A. In this case, the block portions 10A and 20A can also be displaced by operating the bolt 5 as in FIGS. 7 and 8 .

The block portion does not necessarily have to be relatively rotatable at a suitable position within the body portion. For example, as shown in FIG. 12 , the first block portion 10B and the second block portion 20B may be relatively displaced in parallel with the vertical direction (arrow B direction) along the sliding portion 31 . In this case, the rigid tube 2 can be fastened from the inner surface side by the fastening parts 11 and 21, and the back surface side of the through hole 3a can be hooked by the locking parts 12 and 22 to prevent the coupling tool 4 from falling off.

The operation member for displacing the block portions 10 and 20 is not limited to the bolt 5, and various members such as a fixing bolt (press), a split pin, and a wedge may be used as the operation member. The operation input portion may be appropriately deformed according to the structure of the operation member. The wedge member may be positioned between the joint surfaces 16 and 26 of the block portions 10 and 20, and the block portion may be moved by operating the wedge member in the front-rear direction by an operating member such as a pin inserted from the outside of the hard tube 2. 10, 20 displacement. Also in the case where pins and wedges are used as operating members, those falling off can be appropriately prevented. However, when the wedge is used as the operating member, the automatic action of the wedge can be used to prevent the operating member from falling off. The number of block portions is not limited to two, and may be an appropriate number of three or more. That is, the coupling tool may be divided into three or more blocks.

In the above-mentioned form, the example of connecting the rigid pipe 2 and the wall plate 3 has been described, but the target article may be a suitable article as long as it has a hollow portion opened at one end side and into which the connector can be inserted. For example, the coupling tool of the present invention can also be applied to a solid article such as a leg portion of a mounting table by providing a hollow portion on one end side thereof. The target article does not necessarily have to be cylindrical or cylindrical. The present invention can also be applied to an article having a polygonal cross section by adapting the outer peripheral shape of the coupling to the inner peripheral shape of the hollow portion. The counterpart article is also not limited to the plate-shaped wall plate 3, and an appropriate article can be selected as the counterpart article as long as the insertion portion is inserted and has a penetration portion to which the locking portion of each block portion engages. For example, when the penetration part is provided in the wall surface itself of a building, this wall surface can be utilized as a counterpart item. That is, the counterpart article is not limited to a portable component, but also includes the concept of the category of a structure fixed to a structure or the like. Further, the counterpart component may be an assembly in which components such as a pallet having a penetration portion are combined with other structures. For example, a concave portion is provided on the back side of the top plate of the mounting table, a penetration portion is provided on a pallet attached to the top plate so as to cover the concave portion, and on the other hand, the connection of the present invention is provided on the upper end portion of the leg portion. The coupling device of the present invention can be applied to the coupling portion between the top plate and the recessed portion. Furthermore, the coupling tool of the present invention may be used in combination with the target article The installation of various further parts, or the base of the support. For example, in the examples of FIGS. 2 to 4 , the support portion 14 may be used as a basis for further mounting components different from the hard pipe 2 and the wall plate 3 . In one example, a female screw portion may be formed on the end face of the support portion 14, and further components may be screwed thereto.

The penetrating portion is not limited to the penetrating hole, and any suitable penetrating shape can be used as the penetrating portion as long as the insertion portion can be protruded to the opposite side and hooked. The penetration portion does not necessarily have to penetrate to the rear side of the counterpart article. For example, as shown in FIG. 13, when a wall member 3A having an enlarged groove 3c formed in connection with the front of the through groove 3b is used as a counterpart article, the insertion portion 42 of the coupling device 4 is passed through the through groove 3b and inserted into the expanded groove 3b. The rigid pipe 2 can be connected to the wall member 3A similarly to the example of FIG. 8 by displacing the fastening parts 11 and 21 to the working state up to the groove 3c thereafter. In the counterpart part of the example of Fig. 13, the through groove 3b and the enlarged groove 3c may be formed as different parts, and those parts may be combined into the wall member 3A or the like.

Various aspects of the present invention derived from the above-described embodiments and modifications are as follows. In addition, in the following description, in order to understand each aspect of this invention easily, the corresponding component shown in the attached drawing attached with parentheses is described, but this invention is not limited to the aspect shown in figure.

A connecting tool (4) according to an aspect of the present invention is for connecting a target article (2) having a hollow portion opened at least at one end side to a counterpart article (3; 3A) having a penetration portion (3a; 3b) 's connector. It has a main body part (41) which can be inserted into the hollow part, and a main body part arranged in the main body part. An insertion portion (42) protruding from the hollow portion on the end side and capable of passing through the penetration portion, and a neck portion (43) that connects the insertion portion and the main body portion and is thinner than the insertion portion. The part from at least a part of the main body part through the neck to the front end of the insertion part is divided into a plurality of block parts (10, 20; 10A, 20A; 10B, 20B), each of which includes: constituting the main body part The fastening parts (11, 21), the locking parts (12, 22) constituting the insertion part, and the connecting parts (13, 23) constituting the neck part. The fastening portion is provided in a basic state (an example of which is the state shown in FIG. 7 ) with a gap between the inner surface of the hollow portion, and in a state that is larger than the basic state and is connected to the inner surface of the hollow portion. The position can be changed between the working states of the surface close contact (one example is the state shown in Fig. 8). The locking portion is integrally displaceable with the fastening portion, and can pass through the penetration portion when the fastening portion is in the basic state, but cannot pass through the penetration portion when the fastening portion is in the working state. The main body part is provided with an operation input part (16, 29) which transmits the operation force of the operation member (5) operated from the outside of the target article to the fastening part of each block part. In a manner of contact with the operating member, the fastening portion is displaced from the basic state to the acting state.

A connection structure (1) of one aspect of the present invention is a method of connecting a target article (2) having a hollow portion opened at least at one end side to a through portion (3a) through the connection tool (4) of the above aspect; The connection structure of the counterpart item (3; 3A) of 3b). The body portion (41) of the coupling tool is inserted into the hollow portion of the target article such that the insertion portion (42) and the neck portion (43) protrude toward the one end side of the target article. aforementioned The insertion portion protrudes from one side of the penetration portion to the opposite side of the penetration portion through the penetration portion. The fastening parts (11, 21) are changed from the basic state to the acting state by the operation of the operating member (5), and the target article is fastened from the inner side of the hollow part by the fastening parts , and the locking portion (12, 22) is engaged with the periphery of the penetration portion to prevent the coupling device from falling off the counterpart object.

According to the above aspect, the main body of the coupling device is inserted into the hollow portion of the target article while the fastening portion is maintained in the basic state, and the insertion portion is inserted from one side of the counterpart article, that is, from the connected side of the target article, toward the penetration portion. This protrudes to the opposite side, and then the fastening portion is displaced to the working state by operating the operating member, the target article is fastened by the fastening portion from the inner side of the hollow portion, and the locking portion is engaged with the penetrating portion. around, it is possible to prevent the connector from falling off the opponent's item. Thereby, the target item is linked to the counterpart item through the linker. Since the target item and the counterpart item can be connected only by the operation on one side of the counterpart item, the work can be performed skillfully. Since the work on the opposite side of the counterpart item is not required, the target item can be connected even if the work on the opposite side of the counterpart component is difficult or impossible.

In the above aspect, a tapered surface (44) that tapers toward the body portion side may be provided at the connection position between the insertion portion and the neck portion. Thereby, the edge of the penetration portion can be brought into contact with the tapered surface along with the displacement toward the outer side of the locking portion, whereby the action of pulling the coupling tool toward the opposite side of the counterpart article can occur. Therefore, the target article can be brought into contact with the counterpart component, and the stability thereof can be improved.

In addition, each of the above-mentioned plural blocks may be a structure of different parts that can be separated from each other. Thereby, compared with the case where a part of a block part is integrated, the block part can be mutually displaced relatively freely. Therefore, it is possible to easily apply the displacement necessary for the connection to the fastening portion and the locking portion.

1: Connection structure

2: Hard pipe (target item)

2a: extraction hole

3: Siding (the other party's item)

3a: Through hole (through part)

4: Connector

5: Bolt (operating member)

10: Part 1

12: Locking part

13: Connection part

14: Support part

15: Groove

16: Joint surface (operation input part)

20: Part 2

22: Locking part

23: Connection part

25: Shaft

26: Joint surface (operation input part)

41: body part

42: Insertion part

43: Neck

44: Cone

Claims (4)

An article connector for connecting a target article having a hollow portion open at least at one end side to a counterpart article having a penetration portion, and comprising: a main body part into which the hollow part can be inserted, and a main body part arranged in the main body part one end side of the socket, which protrudes from the hollow part and can pass through the insertion part, and the neck which connects the insertion part and the main body part and is thinner than the insertion part, and passes through the neck from at least a part of the main body part. The part from the front end of the insertion part to the front end of the insertion part is divided into a pair of block parts, each of which includes a fastening part constituting the main body part, a locking part constituting the insertion part, and a connecting part constituting the neck part. and the fastening portion is provided so as to be able to operate between a basic state in which a gap is spaced between the inner surface of the hollow portion and an action state in which it is wider than the basic state and is in close contact with the inner surface of the hollow portion. The locking portion is displaceable integrally with the fastening portion, and can pass through the penetration portion when the fastening portion is in the basic state, and can pass through the penetration portion when the fastening portion is in the basic state. In the actuated state, the penetration portion cannot pass through, and the main body portion is provided with an operation input portion, which is in contact with the operation member to push the operation force of the operation member operated from the outside of the target article toward each block. The fastening part of the part transmits the fastening part from the basic state to the acting state, and the operation input part includes a screw provided on one of the block parts. A hole and a joint surface provided on the other block portion, the screw hole, between the shaft portion and the connection portion, the fastening portion penetrates through the fastening portion, and the bolt serving as the operating member can be screwed in, and the joint The surface can be in contact with the aforementioned bolts screwed into the aforementioned screw holes. The coupling device according to claim 1, wherein a tapered surface tapered toward the main body portion is provided at a connection position between the insertion portion and the neck portion. The connector according to claim 1, wherein each of the pair of blocks is a structure of different parts that can be separated from each other. A connecting structure in which a target article having a hollow portion opened at least at one end side is connected to a target article having a penetration portion through the connector of any one of claims 1 to 3, and the insertion portion and the neck portion are connected. Protruding toward the one end side of the target article, the main body portion of the coupling tool is inserted into the hollow portion of the target article, and the insertion portion extends from one side of the penetration portion to the opposite side of the penetration portion through the penetration portion Protrudingly, the fastening portion is changed from the basic state to the operating state by the operation of the operating member, the target article is fastened from the inner side of the hollow portion by the fastening portion, and the locking portion It engages with the periphery of the said penetration part, and prevents the said coupling tool from falling off from the said counterpart article.

Images