JP3125462U - Metal roofing strut and girder connection device - Google Patents

Abstract

Provided is a metal carport strut and girder connection structure capable of firmly coupling a girder without dovetails to the strut.
Of the struts and girders formed in a hollow shape, a pair of cutouts are provided in which the girders are dropped and fitted to the upper ends of the struts, and the connecting hardware fitting on the struts is screwed to the lower surface of the end of the girders. On the other hand, in a connecting device for a column and a girder that is formed by screwing a coupling hardware to the column, a tubular reinforcing member is fitted to the end of the beam, and at the location farther from the end surface, by a starting bolt The upper connection bolt for screwing the connection hardware is screwed in advance to both the beam and the reinforcing member from the connection hardware, and the height that is paired with the initial bolt is screwed in advance. In the position, the end bolts are passed through both sides near the end of the spar and screwed into the reinforcing member, and the screwing is completed.
[Selection] Figure 1

Description

  The present invention is applied to, for example, a carport, and relates to a connecting device for a column and a girder of a metal roof assembly.

  In simple sheds such as carports, metal ones that can be assembled with aluminum extrusions and steel pipes as members are often used because they are suitable for mass production of members and are easy to construct and have excellent durability. . The assembly is done by placing a girder on each of the columns that are hollow and connecting them together. The tight frame is screwed onto the girder installed on the column in this way, and the folded plate is placed on the tight frame. As a result, the roof is spread so as to pass between the girders, and the periphery of the roof is trimmed by the decorative member.

  As shown in FIG. 4, the connection between the column and the girder is provided with a notch 54 for dropping the girder 53 on the inner wall of the upper end of the column 51, and the end of the girder 53 has an inverted gate shape that fits in the upper end of the column 51. It is made by screwing the connecting hardware 55, and usually a pair of dovetail grooves 57, 57 are formed on the lower surface of the girder 53 for screwing, and the heads of the hexagon bolts 59, 59 as screws are attached. The fittings 55 and 55 are fixed to both ends of the girder 53 by inserting the nuts 61 into the hex grooves 57 and 17 and screwing the nuts 61 into the hexagon bolts 59 lowered from the through holes of the fittings 55. Then, the end of the girder 53 is fitted into the assembled notch 54, and the connecting hardware 55 is fixed to the support column 51 by the bolt 63.

  According to the conventional apparatus for connecting a support and a girder of a metal roof assembly as described above, the connecting hardware 55 is fixed to both the support 51 and the girder 53 by screws 59 and 63, of which the girder 53 is connected. Since the head of the hexagon bolt 59 is hung on the dovetail groove 57, the connection strength is not reliable, and the dovetail groove 57 is visually visible on the lower surface of the girder 53 exposed in the attic, and dust is found inside it. There was also the inconvenience of accumulating.

  In view of the above situation, an object of the present invention is to provide a connecting structure of a metal carport strut and a girder that can firmly connect a girder without a dovetail to the strut.

  In order to solve the above-mentioned problems, the present invention provides a combination notch in which a girder is dropped into a top end of a strut out of a strut and a girder formed in a hollow, and the strut is formed on the lower surface of the end of the girder. In the connecting device between the strut and the girder formed by screwing the connecting metal fitting to the column, the girder is fitted with a cylindrical reinforcing member at the end, and from the end surface Is screwed in advance with an initial bolt at a remote location, and then, near the end face, an upper connecting bolt for screwing the connecting hardware is screwed into both the beam and the reinforcing member from the connecting hardware, At the height position that is paired with the initial bolt, the end bolt is passed through both sides near the end of the girder and screwed into the reinforcing member, and the screwing is completed. A connecting device for the column and the girder was constructed.

  According to the above configuration, first, basically, only the opening bolt through hole is provided in the beam, only the through hole of the lower connection bolt and the end bolt are provided in the column 1, and the upper portion is provided in the connection hardware. Only through holes for connecting bolts are formed, so that screw holes (tap holes) can be surely screwed by opening each through hole, and the end of the spar is secured by the reinforcing member. In addition to being reinforced, the screwing strength is increased, so that a robust connection is obtained. The connection hardware is made of aluminum so that the upper connection bolt can be easily tapped thereon, but the material is not limited thereto, and may be made of steel or plastic.

  As described above, according to the present invention, there is no need to use a girder having an inconvenient dovetail on the lower surface, and there is an excellent effect that the column and the girder can be firmly connected.

  1 to 3 show that the present invention is implemented in a carport. A girder 3 is installed on the upper ends of the left and right columns 1, 1, and the combination is such that the beam 3 is dropped on the upper ends of the columns 1. In order to strengthen the combination, a reinforcing member 7 fitted to the end of the girder 3 is used in addition to the connecting metal fitting 5 fitted to the column 1 in order to make the combination strong. Note that a folded plate (not shown) is installed between the parallel beams 3 and 3 by such a roof assembly via a tight frame (see FIG. 4), thereby forming a folded plate roof. In addition to the carport, it can also be implemented as a storeroom or a temporary shed.

  Reinforcing members 7 and 7 formed in a rectangular tube shape with a rectangular cross section are used at both ends of the girder 3 (FIG. 1), and when they are fitted, they are initially half-screwed only with the initial bolts 9 and 9. The In FIG. 1, through holes and screw holes for all bolts are shown, but the girders 3 are initially provided with through holes 11, 11 for the initial bolts 9, 9 near the ends. First, after fitting the reinforcing member 7, the screw holes 17, 17 (tap holes) are opened from the through holes 11, 11, and the initial bolts 9, 9 are screwed into the screw holes 17, 17. The reinforcing member 7 is temporarily fixed.

  Next, it becomes the operation | work which attaches the connection metal fitting 5 to the lower surface of the edge part of the girder 3 with the upper connection bolts 19 and 19 (refer FIG. 2). The connecting hardware 5 has an inverted gate shape, and the through holes 21 and 21 are formed in advance in the top piece. From there, the screw holes 23 and 23 are opened to both the beam 3 and the reinforcing member 7. The connecting hardware 5 is screwed with the upper connecting bolts 19 and 19. Thereby, the fixing of the reinforcing member 7 progresses more than halfway.

  The through holes 27 and 27 of the lower connection bolts 25 and 25 for screwing the connection hardware 5 below the assembly notch 4 are provided at the upper end of the support column 1, and the end bolts 29 and 29 are provided on both sides of the assembly notch 4. The through holes 31, 31 are provided in advance.

  Therefore, next, the work of dropping the girder 3 into the assembly notch 4 of the support column 1 is performed. At this time, the connecting metal 5 is simultaneously accommodated in the support column 1, so that the threaded hole 33 is inserted into the connecting hardware 5 from the through holes 27 and 27. , 33 are formed, and the connecting hardware 5 is screwed with the lower connecting bolts 25, 25 (see FIG. 3). Finally, the common screw holes 35 and 35 are formed in the beam 3 and the reinforcing member 7 from the through holes 31 and 31 in the upper part of the support column 1, and screwed with the terminal bolts 29 and 29. Simultaneously with the completion of fixing, the connection between the column 1 and the beam 3 is completed.

It is a perspective view which shows the reinforcement member used as the principal member of this invention, and the edge part of the girder with which it is fitted. It is a principal part disassembled perspective view which shows the point which connects a support | pillar and a girder. It is a principal part perspective view shown in the state just before completion of the connection of a support | pillar and a girder. It is a disassembled perspective view which shows a prior art example in the connection point of a support | pillar and a girder.

Explanation of symbols

1 Strut 3 Digit 4 Assembly notch 5 Connection hardware 7 Reinforcement member 9 Initial bolt 19 Upper connection bolt 29 Final bolt

Claims (2)

  Of the struts and girders that are formed hollow, a pair of notches are provided to fit the girder into the upper end of the struts, and the coupling hardware that fits into the struts is screwed to the lower surface of the end of the girder, while the coupling hardware In the strut-girder connecting device, which is screwed to the strut, a tubular reinforcing member is fitted to the end of the strut, and it is pre-screwed with an initial bolt at a location farther from the end face. Then, in the vicinity of the end face, an upper connecting bolt for screwing the connecting metal is screwed into both the beam and the reinforcing member from the connecting metal, and further, at a height position that is paired with the initial bolt, A connecting device for a column and a girder of a metal roof assembly, characterized in that the end bolts are passed through both side surfaces near the end and screwed into the reinforcing member and the screwing is completed. 2. The apparatus for connecting a column and a girder of a metal roof assembly according to claim 1, wherein the connecting hardware is made of an aluminum extruded profile and is formed in an inverted gate shape.