JPS587851Y2 - Joint structure of columns and horizontal members - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a joint structure in which columns and horizontal members are attached using bolts.

Although it is well known to form slotted holes in columns and attach horizontal members using hook members, this method is difficult to tighten and results in a lack of rigidity even in simple structures.

Furthermore, hook attachments have the disadvantage that they tend to dislodge when upward forces are applied to the cross members, resulting in instability when attaching other components to the cross members.

The purpose of this invention is to provide a joint structure suitable for use in structures that can be easily assembled at home, etc., and allows horizontal members to be simply and securely attached to slotted holes formed in columns made from pipes or shaped steel. The purpose of the present invention is to provide a joint structure between a column and a horizontal frame member, and its contents include: when a column and a horizontal frame member are connected by bolts, the column is made into a rectangular shape with a space inside;
A plurality of slotted holes are formed in a predetermined arrangement on at least one side of the steel column, and the slotted holes extend from an elongated slot continuous to the lower part of the large-diameter through hole, and the horizontal The material includes an end plate having a plurality of bolt engagement holes in a surface thereof corresponding to a predetermined arrangement of the slotted holes, and a connecting portion above at least one of the bolt engagement holes. forming a protrusion that enters the passage hole of the slotted hole and prevents relative movement in the vertical direction between the horizontal member and the column;
A bolt having means that can be tightened from the side of the horizontal member is engaged with the bolt retaining hole, and the diameter of the head of the bolt is slightly smaller than the diameter of the passage hole of the slotted hole. The diameter of the shank is slightly smaller than the width of the slot, and the protrusion passes through the slotted hole by inserting the bolt head into the slotted hole, then inserting the shank into the slot, and tightening the bolt from the horizontal member side. It is characterized by fitting into the upper part of the hole and closely joining the horizontal member to the column.

A joint structure between a column and a horizontal member according to the present invention will be explained in detail based on a preferred embodiment shown in the drawings.

The drawings show an embodiment in which the joint structure according to the present invention is applied to a structure that can be easily assembled, and the pillar 1 in Fig. 1 is a square pillar made of a square pipe, and the lower end has a pillar support or a fourth pillar. It has a keyhole-shaped slotted hole 5 for attaching the joint piece 2 shown in the figure.

Four slotted holes 5 are formed on each of the four sides for heavy loads,
Various types of light-load horizontal members can be installed.

Furthermore, a joint piece stopper 6 in the shape of an inwardly projecting tongue is formed on the pillar 1, and receives the lower end of the joint piece 2 inserted into the pillar 1, as shown in FIG. The slotted hole 5 and the slotted hole 7 of the join piece 2 are aligned.

As shown in FIG. 2, the slotted hole 5 has a shape in which a slot 9, which is a vertically elongated hole through which the bolt shank passes, is formed below an upper hole 8 through which the bolt head passes.

The slotted hole 7 of the joint piece 2 has a similar shape, and a hole 10 is provided above the joint piece 2, so that when another pillar 1 is placed over the top and connected, it matches the mounting hole 3 and allows a bolt, etc. to be passed through it. It can be fixed.

FIG. 5 shows the horizontal members 4 attached to the pillars 1, such as girders, girders, shed frames, etc.

In the illustrated embodiment, the horizontal member 4 is an example of a heavy-load girder in which end plates 12 are welded to channel steel or I-beam steel 11. Special bolt 1 shown in
Twist in 4.

An example is shown in which four special bolts 14 are used for heavy loads, but in the case of light loads, there may be two special bolts 14 on the upper and lower sides or two on the left and right sides.

A positioning protrusion 1 is provided above at least one of the screw holes 13.
5 is formed and fits into the upper hole 8 of the slotted hole 5 when installed on the pillar 1, and the installation prevents rattling over time.

When the end plate 12 of the horizontal member 4 is thin, use a through hole 16 instead of a screw hole 13 as shown in FIG. 7, weld a nut 17 inside the end plate 12, and screw the bolt 14. can do.

The special bolt 14 has a head 18, a threaded shank 19, and a spanner hook 20, so that the bolt 14 can be tightened from the side of the horizontal member 5.

When connecting the horizontal members 4 directly to the columns 1, loosely screw the bolts 14 into the threaded holes 13 in the end plates 12 of the horizontal members 4, and then insert the bolts 14 into the upper holes 8 of each slotted hole 5 in the columns 1. Insert the head 18 of each bolt 14 into the.

At this time, the shank 19 of the bolt 14 should be made to protrude for a long time so that the protrusion 15 does not interfere with the installation. Tighten each bolt 14 from the side of the horizontal member 4 using a spanner hook 20.

The protrusion 15 enters the slotted hole 5 and the end plate 12 is inserted into the column 1.
It is rigidly attached to the side of the machine.

When connecting two pillars 1, insert the joint piece 2 into the pillar 1 and press the lower end of the joint piece 2 into the stopper 6.
The pillars are brought into contact with each other, covered with another pillar from above, the holes 3 and 10 are aligned, and fixed with bolts.

Next, loosely screw the bolt 14 into the threaded hole 13 in the end face 12 of the horizontal member 5, pass the head 18 of the bolt 14 through the slotted holes 5 and 7 of the column 1 and the joint piece 2, and insert the shank. 19 into the slot 9 and tighten the bolt 14 in the same manner as described above.

The protrusion 15 enters the hole 5 of the column 1 to prevent rattling, and the column 1 and the joint piece 2 are fixed together by several bolts 14.

When removing the horizontal member 4 from the column 1 after joining, use the bolt 1
4 to remove the protrusion 15 from the slotted hole 5, and further lift the horizontal member to remove the bolt 14 from the slotted hole 5.

If the horizontal member 4 has a light load, etc., instead of providing the special bolt 14 with a wrench hook 20, cut a groove on the opposite end of the head 18 of the shank 19, and tighten the bolt 14 with a coin or the like. It may be tightened.

FIG. 8 shows a special bolt 14' based on another embodiment, in which the head 18 side of the shank 19 is a square bar 21,
When this part enters the slot 9 of the slotted hole 5 of the column 1, the bolt 14' cannot be rotated and can be tightened by rotating the nut 22 fitted into the threaded shank 19 from inside the end plate 12. It is what it is.

In this case, it is preferable that the lower part of the slot 9 be formed into a rectangular shape.

As explained above, according to the joint structure of columns and horizontal members according to the present invention, the rigidity between the columns and horizontal members can be achieved by simple installation work, and the required rigidity of the structure can be obtained. .

The protrusions on the end plates of the horizontal members ensured that the special bolts were inserted into the slots, and after tightening the bolts 14, the force from below against the horizontal members caused the gap between the columns and the horizontal members to close. Unintentional departure is prevented.

Therefore, it is also possible to prevent fluctuations in the vertical relative position between the column and the horizontal member when attaching another member to the horizontal member.

[Brief explanation of drawings]

Figure 1 is a perspective view of a column used in the joint structure, Figure 2 is a perspective view of a column used in the joint structure.
Figure 3 is a partially enlarged side view of the pillar in Figure 2, Figure 4 is a perspective view of the joint piece connected to the pillar in Figure 1, Figure 5 is the pillar in Figure 1. 6 is a perspective view of a special bolt, FIG. 7 is a partial sectional view showing the joint between a column and a horizontal member, and FIG. 8 is a special bolt according to another embodiment. It is a perspective view of a bolt. Code 1 is the pillar, 2 is the joint piece, 3 and 10 are the holes, 4
is a horizontal member, 5 and 7 are slotted holes, 6 is a stopper, and 8
is an upper hole, 9 is a slot, 12 is an end plate, 13 is a through hole,
14 and 14' are special bolts, 15 is a protrusion, 17 is a nut, 18 is a head, 19 is a shank, and 20 is a spanner hook.

Claims (1)

[Scope of utility model registration request] 1. When joining a column and a horizontal member with bolts, the column is made into a rectangular shape with a space inside, and a plurality of slotted holes arranged in a predetermined manner are formed on at least one side of the steel column. The slotted hole is formed from a long slot continuous to the lower part of the large-diameter through hole, and an end plate is provided on the horizontal member, and a predetermined hole for the slotted hole is formed on the surface of the end plate. A plurality of bolt engagement holes are provided in accordance with the arrangement, and at least one of the bolt engagement holes is provided above the bolt engagement hole so as to enter into the passage hole of the slotted hole during joining, and to form a hole in the vertical direction between the horizontal member and the column. A bolt having a means for tightening from the side of the horizontal member is engaged with the bolt engagement hole, and the diameter of the head of the bolt matches the slotted hole. The diameter of the bolt shank should be slightly smaller than the width of the slot, and the bolt head should be inserted into the slotted hole, the shank should be inserted into the slot, and the bolt should be inserted from the horizontal member side. A joint structure of a column and a horizontal frame member, characterized in that a protrusion is fitted into the upper part of a slotted hole by tightening, and the horizontal frame member is tightly joined to the column. 2.Request for utility model registration that enables tightening by screwing a bolt with a spanner hook or groove on the end opposite to the head of the shank into a threaded end plate retaining hole. The joint structure of the columns and horizontal members described in item 1. 3. The joining structure of a column and a horizontal member according to claim 1, which can be tightened by a bolt whose shank head side is square bar-shaped and a nut screwed into the bolt.