JPH0527475U - Connection fitting - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a connection fitting that is mounted on a ceiling or a wall to support various pipes and equipment, has a high degree of freedom, has a simple structure, and is easy to install. [Structure] The connecting fitting 11 includes two connecting bodies 12 and 13 formed by bending a metal plate into a U-shape, and both connecting bodies 1.
Using pivot pins 14 that rotatably connect 2 and 13 to form a quadrangular frame body, fixing bolts 16 assembled to one of the connecting bodies 12, and nuts 19 to the other connecting body 13. It is constituted by the supporting screw shaft 18 connected to each other. It is attached to the top plate 12a of the connector 12. Washer 2
1 has a cylindrical seat portion 22 which is fitted to the under-neck portion 16a of the bolt 16 and which is loosely fitted into the mounting hole 15 and protrudes, and has a thickness higher than the plate thickness of the top plate 12a. One end of the cylindrical seat portion 22 is provided. Top plate 12a
A plain washer 23 is integrally provided along the outer side surface of the. When the bolt 16 is tightened and fixed to the support member, a gap is held between the tightening seat surface 16c of the bolt 16 and the top plate 12a, and the connecting body 12 is configured to be rotatable with respect to the bolt 16. There is.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connecting fitting suitable for being attached to a ceiling or a wall surface of a building to support various pipes and equipment.

[0002]

[Prior Art]

 As this type of connecting fitting, one shown in FIG. 7 is known. The connection fitting 1 includes two U-shaped connecting bodies 2 and 3 composed of top plates 2a and 3a and a pair of side plates 2b, 2b and 3b and 3b extending from both side edges thereof at right angles, and the top plates 2a and 3a are connected to each other. Both side plates 2b and 3b are arranged so as to face each other and overlap each other, and the overlapped side plates 2b and 3b are rotatably connected via a pivot pin 4 to form a quadrangular frame body. The fixing bolts 6 are inserted into the mounting holes 5 provided in the top plate 2a of the connecting body 2 of the connecting body 2 to be assembled, and the inserting holes 7 of the screw shafts (suspension bolts) 8 for supporting the top plate 3a of the other connecting body 3 are provided. It has a structure in which a screw shaft 8 inserted through the insertion hole 7 is connected and fixed to the top plate 3a by using two nuts 9 and 9 which are screwed into the screw shaft 8. Then, the connecting body 2 is fastened and fixed to the supporting member 10 such as the ceiling and the wall surface by the fixing bolt 6, and various pipes and equipment are supported by using the screw shaft 8.

[0003]

[Problems to be solved by the device]

 However, since the above-mentioned conventional connecting fitting 1 has only one direction of freedom of the supporting screw shaft 8 when it is used, the connecting pin 2 is fixed to the supporting member 10 in advance. Since it is necessary to mount the screw shaft 8 while determining the connecting direction, the mounting work is troublesome. Further, if there is an error in the desired direction, not only will it be troublesome to correct it, but if the screw shaft 8 is forcibly oriented in the desired direction, the connecting fitting 1 will be deformed and the bolt 6 There was a problem such as breaking.

As a solution to such a problem, there is a structure in which a connecting fitting has a free joint structure. However, not only is the structure complicated and costly, but the degree of freedom is also limited. There is.

The present invention has been made in view of the above circumstances, and is an improvement of the above-described conventional connecting fitting 1, which has a large degree of freedom, has a simple structure, and can be easily installed. The purpose is to provide.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the connection fitting of the present invention comprises two U-shaped connecting members each of which is composed of a top plate and a pair of side plates extending in right angles from both side edges of the top plate, the top plates facing each other, and the side plates. Are arranged so that they overlap each other, and the overlapping side plates are rotatably connected to each other through pivot pins to form a rectangular frame body, which is fixed to the mounting hole provided on the top plate of one connection body. A connecting metal fitting in which a supporting bolt is inserted and assembled, and a supporting screw shaft is connected to the top plate of the other connecting body via a nut, and the fixing bolt is fixed to a supporting member by tightening. A gap is provided between the tightening seat surface of the bolt and the top plate, and the connecting body is configured to be rotatable with respect to the bolt.

[0007]

[Action]

 With the above structure, the one connecting body attached to the supporting member by the fixing bolt becomes rotatable about the axis of the bolt, and the other connecting body is connected to the one connecting body. Since it is rotatable via a pivot pin, the screw shaft connected to the other connecting body rotates about two axes, that is, the axis line of the bolt and the pivot pin that is perpendicular to the axis line of the bolt. It is freely movable and has a great deal of freedom.

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a connection fitting 11 according to the present invention. The connection fitting 11 includes two connecting members 12 and 13 formed by bending a metal plate into a U-shape and one of them. It is composed of a fixing bolt 16 assembled to the connecting body 12, and a supporting screw shaft (hanging bolt) 18 connected to the other connecting body 13 by using two nuts 19 and 19. The connecting body 12 is composed of a top plate 12a and a pair of side plates 12b, 12b extending from both side edges thereof at right angles, and a mounting hole 15 for a fixing bolt 16 is provided in the top plate 12a. On the other hand, the connecting body 13 is composed of a top plate 13a and a pair of side plates 13b, 13b extending in right angles from both side edges thereof, and an insertion hole 17 for a screw shaft 18 is provided in the top plate 13a. Further, the top plate 12a of the connecting body 12 is formed wider than the top plate 13a of the connecting body 13, and as shown in the figure, when the top plates 12a and 13a are opposed to each other and the connecting bodies 12 and 13 are combined, Both side plates 13b, 13b of the body 13 are located inside and arranged so as to overlap with the both side plates 12b, 12b of the connecting body 12, respectively, and the overlapped side plates 12b, 13b are rotatable via a pivot pin 14. To form a rectangular frame. The end edges 12c and 13c of the side plates 12b and 13b are formed in a semi-circular shape centered on the pivot pin 14. The structure of the connecting fitting 11 described above is the same as the conventional one shown in FIG. 7, but in the connecting fitting 11 according to the present invention, the washer 21 shown in FIG. 3 is assembled to the top plate 12a of the connecting body 12. . The washer 21 has a tubular seat portion 22 which is fitted to the under-neck portion 16a of the bolt 16 and which is loosely fitted and protrudes into the mounting hole 15 and has a thickness higher than the thickness of the top plate 12a. A flat seat portion 23 is integrally provided along the outer surface of the top plate 12a. Further, as shown in FIG. 1, a thin flat washer 24 is fitted in a portion of the cylindrical seat portion 22 projecting from the mounting hole 15.

On the other hand, on both side plates 13b, 13b of the connecting body 13, engaging projections 25, 25 projecting inward are provided. As shown by the phantom lines in FIG. 2, the engaging projections 25, 25 are rotated by a predetermined angle (about 90 degrees in the illustrated example) with respect to the connecting body 11 so that the bolt 16 can rotate. It is adapted to engage with both side surfaces of the head portion 16b. By engaging the engaging projections 25, 25 with the bolt head 16b in this manner, the bolt 16 can be rotated and tightened via the connecting body 13.

FIG. 4 shows an example of use of the connection fitting 11 having the above configuration. The bolt 16 is fixed to the supporting member 10 such as a ceiling or a wall by tightening as in the conventional case, but the tightening seat surface 16c of the tightened bolt 16 comes into contact with the cylindrical seat portion 22 and the tightening seat surface 16c. And a top plate 12a of the connecting body 12, a gap is retained, and the connecting body 12 is rotatable with respect to the axis of the bolt 16. Therefore, the supporting screw shaft 18 connected to the connecting body 13 becomes rotatable around the two axes of the axis of the bolt 16 and the pivot pin 14 that is perpendicular to the axis, and the screw shaft 18 can be freely tilted. It is possible to support the pipe 30 and the like.

FIG. 5 shows an example in which a tubular seat member 26 having only the tubular seat portion 22 is used in the shape of the washer 21 shown in FIGS. 1 and 3 without the flat seat portion 23. The same effect can be obtained with a simpler structure by using a simple cylindrical seat 26.

In FIG. 6, instead of the washer 21, an annular collar portion 27 that loosely fits into the mounting hole 15 and projects from the neck 16 of the bolt 16 is continuously provided, and the axial length thereof is the top plate 12a. When the bolt 16 is tightened and fixed, the presence of the annular stepped portion 27 maintains a constant gap between the tightening seat surface 16c of the bolt 16 and the top plate 12a. Similarly, the connecting body 12 becomes rotatable around the axis of the bolt 16. In this case, it is preferable to fit the flat washer 24 to the portion of the annular step portion 27 projecting from the mounting hole 15 as shown in the figure.

[0014]

[Effect of the device]

 The connection fitting according to the present invention has a gap between the fastening seat surface of the bolt and the top plate when the fixing bolt assembled to the top plate of the one coupling body is tightened and fixed to the supporting member, and the one of the one of Since the connecting body is configured to be rotatable with respect to the bolt, the supporting screw shaft attached to the other connecting body rotatably connected to the connecting body via the pivot pin is , The axis of the bolt and the pivot pin that is perpendicular to the axis of the bolt can be freely rotated about two axes, so that the degree of freedom is large and the mounting work can be easily performed. Moreover, it has a simple structure and can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a main part of a connection fitting according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a front view and a plan view of a washer.

FIG. 4 is a side view showing a usage state of the connection fitting.

FIG. 5 is a vertical sectional front view of a main part showing another embodiment.

FIG. 6 is a vertical sectional front view of a main part showing still another embodiment.

FIG. 7 is a vertical sectional front view of an essential part showing a conventional example.

[Explanation of symbols]

 11 Connection Metal Fittings 12, 13 Couplings 12a, 13a Top Plates 12b, 13b Side Plates 14 Pivoting Pins 15 Mounting Holes 16 Fixing Bolts 17 Insertion Holes 18 Support Screw Shafts (Hanging Bolts) 21 Washers 22 Cylindrical Seats 23 Flat Seats 25 Engaging protrusion 26 Cylindrical seat 27 Annular collar

Claims (7)

[Scope of utility model registration request] 1. A pair of U-shaped connecting members each composed of a top plate and a pair of side plates extending in right angles from both side edges thereof are arranged such that the top plates face each other and the side plates overlap each other. The side plates are rotatably connected to each other through pivot pins to form a quadrangular frame body, and fixing bolts are inserted into the attachment holes provided in the top plate of one of the connection bodies to be assembled, A connection fitting in which a supporting screw shaft is connected to the top plate of the connecting body via a nut, and when the bolt is tightened and fixed to a support member, a gap is provided between the tightening seat surface of the bolt and the top plate. A connection fitting that is held and is configured such that the connecting body is rotatable with respect to the bolt. 2. A bolting seat surface of the bolt when a tubular seat body that loosely fits into the mounting hole and protrudes is fitted to the lower part of the neck of the bolt and the bolt is tightened and fixed to a support member. The connection fitting according to claim 1, wherein a gap is provided between the connection fitting and the top plate. 3. The connection fitting according to claim 2, wherein a flat washer is provided at an end portion of the tubular seat body. 4. The connection fitting according to claim 2 or 3, wherein a flat washer is fitted in a portion of the tubular seat body protruding from the mounting hole. 5. An annular collar portion which is loosely fitted and protrudes into the mounting hole is continuously provided at a lower portion of the neck of the bolt, and when the bolt is tightened and fixed to a support member, the annular collar portion serves to secure the bolt. The connection fitting according to claim 1, wherein a gap is provided between the tightening seat surface and the top plate. 6. The connection fitting according to claim 5, wherein a flat washer is fitted to a portion of the annular flange portion projecting from the mounting hole. 7. A locking projection is provided on a side plate of the other connecting body, and when the other connecting body is rotated by a certain angle with respect to the one connecting body, the locking protruding portion moves to the bolt. The connection fitting according to any one of claims 1 to 6, which is configured to be engaged with a head portion.