JP2008144845A - Connection structure of one object to be connected and the other object to be connected - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection structure of one object to be connected and the other object to be connected in which a body part is not rotated together even if a pulling bolt is rotated. <P>SOLUTION: The connection structure of a hand-washing unit 2 and a back plate 3 is provided with the body part 21 inserted/mounted to a mounting hole 2a; and the pulling bolt 23 inserted to the body part 21 through the mounting hole 3a. The body part 21 has a flange part 24; an insertion support part 25; and an engagement part 27 movable from the storage state that it is stored the inside of the insertion support part 25 to the projection state that it is projected to the outside of the insertion support part 25. The engagement part 27 made in the projection state by penetrating the bolt 23 through penetration parts 24a, 25a, thread-engaging it with a female screw part 27a and rotating it is abutted on one side 2a-1 of a peripheral edge of the mounting hole 2a. A fitting-in part 26 fitted into the mounting hole 2a of the hand-washing unit 2 is provided on the body part 21, and the shapes of the mounting hole 2a and the fitting-in part 26 are made to the shapes that the fitting-in part 26 is not rotated around a central line in a penetration direction of the mounting hole 2a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an improvement of a connection structure for connecting one connection object made of sanitary ware or the like and the other connection object made of a cabinet, a mounting plate, or the like.

The connecting device described in Patent Document 1 is a main body part that is inserted into an attachment hole of one connection object (a hand-washer) from the other side to one side, and an attachment of the other connection object (back plate). And a pulling bolt to be inserted into the main body through the hole.
Japanese Patent Laid-Open No. 2002-478

    The main body is provided on the insertion support portion extending from the flange portion, the insertion support portion extending from the flange portion, and the inner side of the insertion support portion. And a locking portion that can be moved by operating the pulling bolt from the housed state that protrudes to the outside of the insertion support portion to a protruding state that is larger than the diameter of the attachment hole of one of the connection objects.

    The connecting device is inserted into the insertion portion formed in the flange portion and the insertion support portion through the drawing bolt, and the drawing bolt is screwed into the female screw portion formed in the locking portion and rotated to be in a protruding state. The engaging portion is brought into contact with one side of the peripheral edge of the attachment hole of one of the connection objects to connect both of the connection objects.

    The connecting device is configured to insert the insertion support portion of the main body portion into the attachment hole of one connection object from the other side to the one side and insert the insertion support portion into the main body portion through the attachment hole of the other connection object. The locking part is moved from the stowed state to the protruding state by operating the bolt, and the pulling bolt screwed into the female threaded part of the locking part is rotated and fastened to lock the locking part to the other connection target Pulling toward the object side, holding one side of the peripheral edge of the attachment hole of one connection object and the other side of the peripheral edge of the attachment hole of the other connection object between the protruding locking portion and the head side of the attracting bolt Are connected.

  However, when there is a gap between the peripheral edge of the attachment hole of one connection object and the other connection object, when the pulling bolt is rotated, the main body rotates together and the connection work is performed. There are things that cannot be done.

  In order to solve the above-mentioned problem, the present invention rotates the pulling bolt even when there is a gap between the peripheral edge of the attachment hole of one connection object and the other connection object. Another object of the present invention is to provide a connection structure between one connection object and the other connection object so that the main body portions do not rotate together.

  In order to prevent the main body from rotating together even if the pulling bolt is rotated, the means adopted by the present invention according to claim 1 is directed to the attachment hole of one connection object from the other side to the one side. A main body part to be inserted and a pulling bolt to be inserted into the main body part through the attachment hole of the other connection object, and the main body part is in contact with the other side of the peripheral part of the attachment hole of one connection object. A hook part that comes into contact with and hooks, an insertion support part that extends from the hook part, and a mounting hole that is provided on the insertion support part and projects from the stored state inside the insertion support part to the outside of the insertion support part. And a locking part that can be deformed or moved by operating the pulling bolt to a protruding state that is larger than the diameter of the hole, and the pulling bolt is inserted into the insertion part formed in the collar part and the insertion support part. Then, the drawing bolt is screwed into the female thread formed on the locking part and rotated. In the connection structure in which the engaging portion brought into the protruding state is brought into contact with one side of the peripheral portion of the mounting hole of one connection object and the both connection objects are connected, the main body portion of the one connection object Insertion parts that fit into the attachment holes are provided, and the shape of the attachment holes and the insertion parts is such that the insertion part that is inserted when the pulling bolt is rotated does not rotate around the center line in the insertion direction of the attachment holes. It is the connection structure of one connection target object and the other connection target object characterized by being formed in this.

  In order to prevent the main body from rotating together even if the pulling bolt is rotated, the means adopted by the present invention according to claim 2 is directed to the attachment hole of one connection object from the other side to the one side. A main body part to be inserted and a pulling bolt to be inserted into the main body part through the attachment hole of the other connection object, and the main body part is in contact with the other side of the peripheral part of the attachment hole of one connection object. A hook part that comes into contact with and hooks, an insertion support part that extends from the hook part, and a mounting hole that is provided on the insertion support part and projects from the stored state inside the insertion support part to the outside of the insertion support part. And a locking part that can be deformed or moved by operating the pulling bolt to a protruding state that is larger than the diameter of the hole, and the pulling bolt is inserted into the insertion part formed in the collar part and the insertion support part. Then, the drawing bolt is screwed into the female thread formed on the locking part and rotated. In the connecting structure in which the engaging portion brought into the protruding state is brought into contact with one side of the peripheral edge portion of the attachment hole of one of the connection objects to connect both of the connection objects, the contact surface of the flange portion is adhered. The connection object is attached to one connection object so that the main body part does not rotate when the pulling bolt is rotated on the contact surface of the flange part. It is a connection structure with a connection object.

  In order to prevent the main body from rotating together even when the pulling bolt is rotated, the means adopted by the present invention according to claim 3 is characterized in that the flange has an inclusion attached to the abutment surface side. The connection structure between one connection object and the other connection object according to claim 2, wherein a contact surface as the adhesive surface is formed on the object.

  The present invention according to claim 2 includes a main body portion and a pulling bolt to be inserted into the main body portion, and the main body portion has a flange portion provided on the other side and a smaller diameter than the flange portion. An insertion support part extending from the collar part to one side, and an operation of the pulling bolt from the storage state provided inside the insertion support part to the protruding state projecting to the outside of the insertion support part. A female screw having an engaging portion that can be deformed or moved, and a drawing bolt formed in the engaging portion by inserting the drawing bolt from the other side into an insertion portion formed in the flange portion and the insertion support portion. In the connecting device for bringing the locking portion that is in a protruding state by screwing into and rotating the portion closer to the flange portion, an adhesive surface is formed on one side of the flange portion, and the flange portion rotates the pulling bolt. Sometimes the sticking part can be attached with an adhesive surface so that the body part does not rotate. Device is adopted.

  In this connecting device, the collar portion may include inclusions on one side, and the adhesive surface may be formed on one side of the inclusions, so that it can be employed in the present invention.

  The connection structure between one connection object and the other connection object according to the first aspect of the present invention prevents the rotation of the fitting portion provided in the main body by the attachment hole of the one connection object. Even if the shifting bolt is rotated, the main body does not rotate, and the connection work can be smoothly performed.

  Since the connection structure of one connection target object and the other connection target object of the present invention according to claims 2 and 3 is adhered to one connection target object by adhesive force, Even if the pulling bolt is rotated, the main body does not rotate, and the connection work can be smoothly performed. In addition, when the main body is inserted into the attachment hole of one of the objects to be connected, the flange of the main body can be attached to one of the objects to be connected, so that the main body can be connected to one of the objects. There is no worry of detaching from the mounting hole of the object, and the connecting work is easy.

  A connection structure (hereinafter referred to as “the present invention connection structure”) between one connection object and the other connection object according to the present invention will be described with reference to the drawings showing embodiments.

(First embodiment)
1 to 7 show a first embodiment of the connecting structure of the present invention. FIG. 1 is a longitudinal sectional view showing a state in which a hand-washing device 1 is partially sectioned and one connecting object (hand washing machine 2) and the other connecting object (mounting back plate 3) are connected by a connecting device 20. It is. FIG. 2 is a perspective view of the hand-washing machine 2 as viewed from the other side which is the back surface side. The attachment hole 2a and the connecting device 20 before being inserted into the attachment hole 2a are separated on the lower right side of the figure. The connecting device 20 after being inserted into the mounting hole 2a is shown on the lower left side of the figure. FIG. 3 is an enlarged longitudinal sectional view showing an enlarged main part of the hand-washing apparatus 1, and FIG. 3A shows a state before the drawing bolt 23 is inserted into the inserted main body 21. Fig. (B) shows a state in which the drawing bolt 23 is inserted into the main body portion 21 and then pressed against the pressing surface 27c of the locking portion 27, and is shown by a solid line. The part 27 is in the housed state, and the locking part 27 indicated by a broken line is in the middle of turning from the housed state toward the protruding state. FIG. 4 is an exploded perspective view of the connecting device 20, in which a main body 21, a washer 22, and a pulling bolt 23 are illustrated in order from left to right in the drawing. FIG. 5 is an exploded perspective view of the main body 21 of the coupling device 20. FIG. 6 is an enlarged perspective view in which a main part of the coupling device 20 is enlarged, and shows a state in which the pulling bolt 23 is inserted into the main body portion 21 and pressed against the locking portion 27 so that the locking portion 27 is in a protruding state. It is shown. FIG. 7 is a perspective view in which one connection object (hand-washing machine 2) and the other connection object (mounting back plate 3) are broken to enlarge the main part of the connection structure 10 of the present invention. The apparatus 20 includes a peripheral edge one side 2a-2 of the attachment hole 2a of one connection object (hand washing machine 2) and a peripheral edge other side 3a-1 of the attachment hole 3a of the other connection object (attachment back plate 3). Is shown in a state where both of the objects to be connected 2 and 3 are connected to each other by the locking portion 27 in the protruding state and the head of the pulling bolt 23.

  In the connecting structure 10 of the present invention, as shown in FIG. 1, the hand-washing device 2 of the hand-washing device 1 and the mounting back plate 3 are connected by a connecting device 20. The hand-washing device 1 includes a hand-washing machine 2, a mounting back plate 3 to which the hand-washing machine 2 is connected, a support plate 4 on which the hand-washing machine 2 is placed, a drainage pipe 5 extending downward from the hand-washing machine 2, and the like. The hand-washing machine 2 is adopted as one connection object, and the mounting back plate 3 is adopted as the other connection object. The hand-washing machine 2 is made of earthenware or resin, and includes a hand-washing part 6 whose upper side is opened, and an annular pedestal part 7 in which a connecting device insertion space S1 is formed to support the hand-washing part 6. A gap S <b> 2 is formed between the base portion 7 and the mounting back plate 3. The pedestal 7 is provided with a mounting hole 2a on the side facing the mounting back plate 3, and the mounting hole 2a communicates the coupling device insertion space S1 and the gap S2. As shown in FIG. 2, the mounting hole 2a has a shape having inner diameters with different dimensions (for example, formation of a long hole having two inner diameters, a major axis and a minor axis). On the other hand, the mounting back plate 3 is formed of wood or the like, and is provided with a mounting hole 3a corresponding to the mounting hole 2a as shown in FIG. 1, and the mounting hole 3a is the other of the gap S2 and the back plate 3. It communicates with the side.

  As shown in FIGS. 1 and 7, the connecting device 20 includes a main body 21 that is inserted from the other side A to the one side B into a mounting hole 2 a of one connection object (hand-washing machine 2), and a washer 22. And a pulling bolt 23 to be inserted into the main body 21 through the mounting hole 3a of the mounting back plate 3.

  As shown in FIG. 7, the main body portion 21 of the connecting device 20 has a hook portion 24 with which the abutment surface comes into contact with the peripheral edge 2 a-1 of the attachment hole 2 a of one of the objects to be connected (hand-washing machine 2). And an insertion support portion 25 extending from the flange portion 24 toward the one side B. The insertion support portion 25 includes an insertion portion 26 extending from the flange portion 24, a guide portion 28 extending further from the insertion portion 26, and a locking portion 27 guided by the guide portion 28.

  The fitting part 26 corresponds to the fitting hole 2a to be fitted, and the major axis of the fitting part 26 is larger than the minor axis of the fitting hole 2a. Thereby, the fitting part 26 fitted in the attachment hole 2a does not rotate around the center line in the insertion direction of the attachment hole 2a. In addition, a square hole is adopted for the mounting hole 2a and the fitting portion 26 is formed in a prismatic shape slightly smaller than the square hole, or a concave portion is formed on the inner peripheral surface side of the mounting hole 2a and the outer peripheral surface of the fitting portion 26 is formed. A convex portion that can be fitted into the concave portion may be formed on the side. If the fitting part 26 is held in the fitting hole 2a in a state of being fitted into the fitting hole 2a by setting the minor axis of the fitting part 26 to be slightly larger than the minor axis of the mounting hole 2a, the main body part 21 is temporarily fixed to the fitting hole 2a. And you can prevent it from falling out.

  The guide portion 28 is provided with a lock portion passage 29 for guiding the lock portion 27 and shaft guide grooves 30 and 30 for slidingly guiding the shaft portion 27b of the lock portion 27.

  The locking portion passage 29 can accommodate the locking portion 27 and can move toward the mounting back plate 3 side (the other side) with the locking portion 27 in a protruding state. is there. The locking portion passage 29 has a locking recess 31 on its periphery that can lock the locking projection 27d provided on the locking portion 27 in the housed state.

  As shown in FIGS. 4 and 5, the shaft guide groove 30 is provided with rotating grooves 32 and 32 for rotatably supporting a shaft portion 27b having a substantially oval side surface of the locking portion 27, and a rotation of the shaft portion 27b. Sliding grooves 33 and 33 are formed to slide and guide the shaft portion 27b in the front-rear direction from the front distal end side to the rear proximal end side in a state where movement is prevented, and the side surface is substantially cross-shaped. . As shown in FIG. 5, the sliding grooves 33, 33 are formed in a horizontally elongated shape that is shorter than the long diameter of the shaft portion 27b and extends horizontally in the front-rear direction with a width W1 substantially the same as the short diameter of the shaft portion 27b. In this state, the shaft part 27b can be guided to slide back and forth while preventing the rotation of the shaft part 27b. The locking portion 27 guided by the shaft guide groove 30 can be held in a protruding state by being pressed by the pulling bolt 23 to rotationally guide the shaft portion 27b to the rotation grooves 32, 32, and By sliding and guiding the shaft portion 27b in each sliding groove 33, the shaft portion 27b can be drawn toward the mounting back plate 3 side (the other side).

  The locking portion 27 protrudes from the storage state (see FIG. 4) stored inside the insertion support portion 25 to the outside of the insertion support portion 25 and protrudes outside the mounting hole 2a of the hand-washer 2 (see FIG. 4). 6 and FIG. 7) can be moved by operating the pulling bolt 23. As shown in FIG. 5, the locking portion 27 has a column shape having a substantially square cross section, and a female screw portion 27 a through which the drawing bolt 23 inserted into the insertion portions 24 a and 25 a can be screwed in a protruding state. The shaft portion 27b that is formed and protrudes from both side surfaces that are 90 ° apart from both end openings of the female screw portion 27a, pressing surfaces 27c and 27e that are pressed by the tip of the pulling bolt 23, and a locking convex portion 27d. The minor axis direction of the shaft portion 27 b is parallel to the column direction of the locking portion 27. The pressing surface 27e is formed with an inclined surface on the end side thereof so as not to be perpendicular to the insertion direction of the drawing bolt 23 in the housed state, and the tip of the drawing bolt 23 is formed on the inclined surface. When abutting and pressing, the latching portion 27 in the stored state rotates.

  The pulling bolt 23 is inserted into the insertion portions 24a and 25a (see FIGS. 4 and 5) formed in the flange portion 24 and the insertion support portion 25 to press the pressing surfaces 27e and 27c of the locking portion 27. After the locking portion 27 is rotated from the housed state and reversed to the protruding state where the locking portion 27 can be locked, the pulling bolt 23 is screwed into the female screw portion 27a of the locking portion 27 and is rotated. 27 is moved from one side to the other side so that the distance from the locking portion 27 to the flange portion 24 can be changed (see FIGS. 1 and 3B).

  In addition, although the latching | locking part 27 of this example employ | adopted the thing of the type which slides back and forth after rotating from a stowed state to a protrusion state, it is not restricted to this, Although illustration was abbreviate | omitted, Two sets of links with a middle bendable connection are provided between the front female threaded part and the proximal collar part, and both ends of each link are connected to the female threaded part and the connecting part connected to the fitting part. And it is also possible to employ a type that expands larger than the diameter of the mounting hole 2a when it is compressed and deformed so that the distance between the female screw portion and the flange portion is reduced.

  Next, a connection method using the connection device 20 will be described by taking as an example the connection between the hand-washing device 2 and the mounting back plate 3 in the hand-washing device 1 of this example.

  First, as shown on the right side in FIG. 2, the main body portion 21 of the coupling device 20 in the housed state is inserted into the mounting hole 2a of the hand-washing machine 2, and the left side in FIG. 2 and as shown in FIG. The fitting portion 26 of the main body portion 21 is fitted into the mounting hole 2a. The connecting device 20 is held in the mounting hole 2a so that the inserted fitting portion 26 does not rotate around the center line in the insertion direction of the mounting hole 2a.

  Subsequently, the shaft tip end side of the pulling bolt 23 with the washer 22 inserted is inserted into the mounting hole 3a and pushed forward, and the tip of the bolt 23 is pressed against the pressing surfaces 27c and 27e of the engaging portion. As a result, as shown by the broken line in FIG. 3B, the pressed pressing surfaces 27c and 27e rotate the locking portion 27 in the stored state. When the bolt 23 is further pushed forward, the locking portion 27 is in a protruding state and the tip of the bolt 23 is brought into contact with the opening of the female screw portion 27a.

  As shown in FIGS. 1 and 7, the locking portion 27 is pulled toward the back plate 3 side by rotating the bolt 23 that is abutted against the opening of the female screw portion 27a. At this time, in this example, since the fitting portion 26 is fitted and held in the mounting hole 2a so as not to rotate around the center line in the insertion direction of the mounting hole 2a, the main body portion 21 rotates together with the bolt 23. Can be prevented.

  The rotation operation of the bolt 23 is continued, and as shown in FIG. 7, the peripheral edge one side 2a-2 of the mounting hole 2a of the hand washing machine 2 and the peripheral edge other side 3a-1 of the mounting hole 3a of the mounting back plate 3 Between the lock 27 and the washer 22 pressed on the head side of the bolt 23, the lock 27 is drawn toward the mounting back plate 3, and the handwasher 2 and the mounting back plate are drawn. Complete the connection with 3. The bolt 23 is tightened with an optimum torque so that the hand-washing machine 2 and the mounting back plate 3 are connected in an optimum state.

(Second Embodiment)
8 to 10 show a second embodiment of the connecting structure of the present invention. FIG. 8 shows a state in which the hand-washing apparatus 1 is partially sectioned and one connecting object (hand-washing machine 2) and the other connecting object (mounting back plate 3) are connected using the connecting apparatus 60. It is a longitudinal cross-sectional view. FIG. 9 is a perspective view showing an enlarged main part of the connection structure 50 of the present invention by breaking one connection target (hand washing machine 2) and the other connection target (mounting back plate 3). Thus, the connecting device 60 allows the peripheral edge one side 2a-2 of the mounting hole 2a of one connecting object (hand washing machine 2) and the peripheral edge other side of the mounting hole 3a of the other connecting object (mounting back plate 3). 3a-1 is shown in a state where it is sandwiched and connected between the locking portion 27 in a protruding state and the head side of the pulling bolt 23. FIG. 10 shows the coupling device 60, and FIG. 10A is a perspective view showing a state in which the inclusion 70 that is externally fitted to the main body 21 of the coupling device 60 is attached, with the locking portion 27 protruding. FIG. (B) is an exploded perspective view in which the main body portion 21 and the inclusions 70 of the coupling device 60 are separated, and shows the locking portion 27 in the housed state.

  The connecting structure 50 according to the present embodiment is greatly different from the connecting structure 10 according to the first embodiment, in that the fitting portion provided in the connecting structure 10 according to the first embodiment. Is formed on the inclusion 70 attached to the contact surface side of the flange portion 24 of the coupling device 60, and a contact surface as an adhesive surface is formed. It is that it stuck on one connection object (hand-washing machine 2) so that the part 21 might not rotate.

  By comprising in this way, since the contact surface of the collar part 24 is affixed on one connection target object (hand-washing machine 2) so that the main-body part 21 may not rotate with an adhesive surface, the attracting bolt 23 is attached. Even if it rotates, the main-body part 21 does not rotate. Further, when the main body 21 is inserted into the attachment hole 2a of one connection object (handwasher 2) from the front side of the attachment hole 2a, the flange 24 of the main body 21 is connected to one connection object (handwasher 2). Since the main body portion 21 can be temporarily fixed by being attached to the attachment body 2, there is no fear that the main body portion 21 is detached from the attachment hole 2 a of the one connection object (hand-washing machine 2).

  The inclusion 70 of this example is composed of a main body 73 having a thickness of about 1 to 3 mm made of sponge, elastomer, and the like, and an adhesive layer provided on both the front and back surfaces of the main body 73, and one of the objects to be connected (hand-washing machine) Even if the mounting surface of 2) has irregularities, the main body 73 is formed in a hardness that can be deformed so as to absorb the irregularities. By doing in this way, since the whole adhesive surface is uniformly pressed by the inclusion 70 without unevenness, the inclusion 70 can be strongly stuck to one connection object (hand-washing machine 2).

  The inclusion 70 is an adhesive sheet in which both surfaces are adhesive surfaces as shown in FIG. 10 (B) on the front and back both sides of the main body 73 formed in an annular disk shape matching the size of the flange 24. 71 and 72 are pasted. It is desirable that the connecting device 60 before the connecting work is stored by sticking a separate paper on the adhesive surface of the inclusion 70 so as not to be attached by mistake.

  The main body portion 21 of the connecting device 60 is provided with an outer fitting portion 80 to which the inclusion 70 is fitted on the distal end side of the flange portion 24. The outer fitting part 80 and the insertion support part 25 are slightly smaller in outer diameter than the hole diameter of the inclusion 70. The outer fitting portion 80 is formed with a guide ridge 81 extending from the back surface side of the flange portion 24 in the longitudinal direction of the insertion support portion 25 on the outer peripheral surface side. The guide ridge 81 is composed of a plurality of guide ridges that are separated from each other by an appropriate distance. The guide ridge 81 is inclined so that its protruding height dimension (convex dimension) increases as it approaches the flange 24, and has an outer diameter that is substantially the same as the hole diameter of the inclusion 70 in the vicinity of the flange 24. .

  In order to externally insert the inclusion 70 with the external fitting portion 80 of the main body 21, first, the separation paper of any one of the adhesive sheets 72 of the inclusion 70 is peeled off, and the inclusion 70 is disposed on the distal end side of the main body 21. The inclusion 70 is guided by the guide protrusions 81 through the inner hole, and the adhesive sheet 72 on the back surface side of the inclusion 70 is attached to the back surface side of the flange portion 24. In addition, the connection apparatus 60 can also stick the inclusion 70 to the collar part 24 in advance. At the time of this insertion, since the outer diameter of the outer fitting portion 80 and the insertion support portion 25 is smaller than the hole diameter of the inclusion 70, the adhesive sheet 72 on the back side is difficult to stick to the main body portion 21. Easy to fit. Further, during this insertion, the guide protrusion 81 guides the inclusion 70 in a state where a gap is formed between the hole of the inclusion 70 and the outer fitting portion 80, so that the inclusion 70 is inserted into the outer fitting portion 80. Is less likely to contact and stick. In addition, since the guide protrusion 81 has an outer diameter that is substantially the same as the hole diameter of the inclusion 70 in the vicinity of the flange 24 during the insertion, it is ensured that the inclusion 70 is not displaced from the flange 24. I can guide you. Further, after the insertion, if the separation paper of the other adhesive sheet 72 of the inclusion 70 is left without being peeled off and is peeled off at the time of the connecting work, the connecting device 50 can be prevented from being stuck by mistake. . The inclusions 70 are previously attached to the peripheral surface 2a-1 of the peripheral edge 2a-1 of the attachment hole 2a of the hand-washing machine 2, and then the distal end side of the main body 21 is inserted into the inner hole of the inclusions 70 so that the collar 24 Can be attached to the inclusion 70.

  In addition to this, the coupling device 50 omits the inclusion 70, makes the contact surface of the collar portion 24 an adhesive surface by applying an adhesive or the like, and the main body portion 21 rotates when the pulling bolt 23 is rotated. In order to avoid this, the back side of the collar 24 may be attached to one of the objects to be connected (hand washing machine 2). If comprised in this way, even if there is no inclusion 70, the connection structure which prevents co-rotation of the main-body part 21 can be obtained.

  Configurations other than the above differences are substantially the same as those of the connection structure 10 and the connection device 20 of the present invention in the first embodiment. Among the reference numerals shown in FIGS. 8 to 10, FIGS. The same reference numerals as those described in the first embodiment denote the same components as those described in the first embodiment.

1 shows a first embodiment of a connecting structure of the present invention, in which a hand-washing device 1 is partially sectioned, one connecting object (hand-washing machine 2) and the other connecting object (mounting back plate 3). 2 is a longitudinal sectional view showing a state where the two are connected by the connecting device 20. In the embodiment, it is the perspective view which looked at the hand-washing machine 2 from the other side used as the back surface side, Comprising: The attachment hole 2a in the lower right side of the figure, and the connection apparatus 20 before being inserted in this attachment hole 2a And the connecting device 20 after being already inserted into the mounting hole 2a is shown on the lower left side of the figure. In the same embodiment, it is an enlarged vertical cross-sectional view in which the main part of the hand-washing apparatus 1 is enlarged, and FIG. (A) shows a state before the drawing bolt 23 is inserted into the inserted main body 21. FIG. (B) shows a state in which the drawing bolt 23 is inserted into the main body 21 and then pressed against the pressing surface 27c of the locking portion 27, and is indicated by a solid line. The locking portion 27 is in the stored state, and the locking portion 27 indicated by a broken line is in the middle of turning from the stored state toward the protruding state. In the embodiment, it is an exploded perspective view of the coupling device 20, and a main body 21, a washer 22, and a pulling bolt 23 are shown in order from the left to the right in the drawing. In the same embodiment, it is an exploded perspective view of the main-body part 21 of the connection device 20. FIG. In the embodiment, it is an enlarged perspective view in which a main part of the coupling device 20 is enlarged, and the pulling bolt 23 is inserted into the main body part 21 and pressed against the locking part 27 to make the locking part 27 project. It shows the situation. In the embodiment, it is the perspective view which fractured | ruptured one connection target object (hand-washing machine 2) and the other connection target object (back plate 3 for attachment), and expanded the principal part of this invention connection structure 10. The connecting device 20 includes a peripheral portion one side 2a-2 of the mounting hole 2a of one connection target (hand washing machine 2) and a peripheral portion other side 3a of the mounting hole 3a of the other connection target (mounting back plate 3). -1 is sandwiched between the protruding locking portion 27 and the head of the pulling bolt 23, and the two objects 2 and 3 are connected. 2 shows a second embodiment of the connecting structure of the present invention, in which the hand-washing device 1 is partially sectioned, and one connecting object (hand washing machine 2) and the other connecting object (mounting back plate 3). Is a vertical cross-sectional view showing a state where the two are connected using the connecting device 60. The perspective view which expanded and showed the principal part of this invention connection structure 50 by fracture | rupturing one connection target object (hand-washing machine 2) and the other connection target object (back plate 3 for attachment) in the embodiment. And the peripheral part one side 2a-2 of the attachment hole 2a of one connection object (hand-washing machine 2) and the peripheral part of the attachment hole 3a of the other connection object (attachment back plate 3) by the connecting device 60 This shows a state where the other side 3a-1 is sandwiched and connected between the protruding locking portion 27 and the head side of the pulling bolt 23. In the same embodiment, a coupling device 60 is shown, and FIG. (A) is a perspective view showing a state in which an inclusion 70 externally fitted to the main body portion 21 of the coupling device 60 is attached. FIG. 5B is an exploded perspective view in which the main body portion 21 and the inclusions 70 of the coupling device 60 are separated, and shows the locking portion 27 in the stored state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 ... Hand-washing machine 2a ... Mounting hole 2a-1 ... Periphery front side 3 ... Mounting back plate 3a ... Mounting hole 21 ... Main-body part 23 ... Pulling bolt 24 ... Gutter 25 ... Insertion support part 26 ... Insertion part 27 ... Engagement Stop part 27a ... Female thread part A ... The other side B ... One side

Claims (3)

A main body part that is inserted into the attachment hole of one connection object from the other side toward the one side, and a pulling bolt that is inserted into the main body part via the attachment hole of the other connection object; Is a hook part that comes into contact with the other side of the peripheral edge of the mounting hole of one of the objects to be connected, an insertion support part that extends from the hook part, and a storage that is provided in the insertion support part and fits inside the insertion support part. And a locking portion that can be deformed or moved by operating the pulling bolt to a protruding state that protrudes from the state to the outside of the insertion support portion and is larger than the diameter of the attachment hole of one of the connection objects. Insert the locking bolt into the insertion part formed in the collar and the insertion support part, and screw the locking bolt into the female threaded part formed in the locking part and rotate the locking part in the protruding state. The connection object is brought into contact with one side of the peripheral edge of the mounting hole to connect both connection objects. In the connecting structure, the main body portion is provided with an insertion portion that fits into the attachment hole of one of the connection objects, and the shape of the attachment hole and the insertion portion is the insertion portion that is inserted when the pulling bolt is rotated. A connection structure between one connection object and the other connection object, wherein the connection object is formed so as not to rotate around the center line in the insertion direction of the mounting hole. A main body part that is inserted into the attachment hole of one connection object from the other side toward the one side, and a pulling bolt that is inserted into the main body part via the attachment hole of the other connection object; Is a hook part that comes into contact with the other side of the peripheral edge of the mounting hole of one of the objects to be connected, an insertion support part that extends from the hook part, and a storage that is provided in the insertion support part and fits inside the insertion support part. And a locking portion that can be deformed or moved by operating the pulling bolt to a protruding state that protrudes from the state to the outside of the insertion support portion and is larger than the diameter of the attachment hole of one of the connection objects. Insert the locking bolt into the insertion part formed in the collar and the insertion support part, and screw the locking bolt into the female threaded part formed in the locking part and rotate the locking part in the protruding state. The connection object is brought into contact with one side of the peripheral edge of the mounting hole to connect both connection objects. In the connecting structure, the contact surface of the flange portion is used as an adhesive surface, and the contact surface of the flange portion is attached to one connection object so that the main body portion does not rotate when the pulling bolt is rotated. The connection structure of one connection target object and the other connection target object characterized by having performed. The connection structure between one connection object and the other connection object according to claim 2, wherein the flange portion includes an inclusion on the contact surface side, and the contact surface is formed as the adhesive surface on the inclusion. .