JPH087124Y2 - Temporary fastener for steel backing - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a route for a backing metal to be welded to the inner surface of a column steel or the like, and a steel backing metal temporary fixing tool used for temporarily fixing the backing metal.

[0002]

2. Description of the Related Art In FIG. 5, reference numeral 1 indicates column steel,
A backing metal 2 is routed and welded to the column steel 1. That is, the back metal 2 is arranged on the inner surface of the column steel 1,
The column steel 1 is positioned so as to project from the end of the column steel 1 by the root dimension L, welded and attached. Column steel 1
Are connected to be used as a pillar of a building, and a beam is passed over the column steel 1 to be mounted. Therefore, in order to attach the beam horizontally, it is necessary to accurately route the backing metal 2. Therefore, when welding the backing plate 2 to the column steel 1, measure the protruding portion of the backing plate 2 with a scale and adjust the position of the backing plate 2 to set the route, and then use a vise to bend the backing plate 2 Is temporarily fixed to the column steel 1. In addition, a positioning tool for positioning the backing plate 2 may be used.

[0003]

However, in the method of setting the route of the backing metal 2 using the scale, there is a problem that there is unevenness among the workers and the route dimension L varies. In the conventional positioning tool, only the positioning of the backing plate 2 is performed, and the bail vise is not used to fix the backing plate 2 to the column steel 1, which causes a problem of poor work efficiency. . The present invention has been made by paying attention to the above-mentioned conventional problems. A backing of a steel frame material that can make the root size constant regardless of the operator and can perform temporary fixing together with positioning of the backing metal. The purpose is to provide a temporary gold stopper.

[0004]

According to a first aspect of the present invention, there is provided a backing metal which is arranged on an inner surface of a steel aggregate and which is welded at a predetermined position where a part of the end of the steel aggregate protrudes by a root dimension. A backing metal temporary fastener for temporarily fixing the steel frame to the steel frame, and a U-shaped fitting member that fits into the steel frame from the end of the steel frame,
An end contact portion formed on the fitting member for contacting an end of the steel frame, and a positioning portion formed in a shape recessed by a root dimension in a direction in which the backing metal projects from the end contact portion. A supporting projection formed on the fitting member and abutting on the steel aggregate, and a direction in which a tip end of the fitting member is attached to a side of the fitting member facing the portion where the supporting protrusion is formed and the steel frame It is a backing metal temporary fixing tool made of an iron frame material, which is provided with a temporary fixing bolt that can be moved in a separating direction.

According to the first aspect of the present invention, the backing metal is held by the positioning portion, the backing metal temporary stopper is fitted from the end of the steel aggregate, and the end abutting portion is attached to the end of the steel aggregate. Contact them, route out the backing metal, and then turn the temporary fixing bolt in the direction of contacting the steel aggregate, bring the temporary fixing bolt into contact with the steel aggregate, and bring the protrusion into contact with the backing metal. Temporarily secure the back metal to the steel frame. Next, the backing plate is welded to the steel frame and attached, and then the temporary fixing bolt is turned in a direction away from the steel frame to remove the backing plate temporary fixing tool.

[0006]

Embodiments of the present invention will be described with reference to the drawings. 1 to 4, reference numeral 10 denotes a backing metal temporary stopper according to an embodiment of the present invention. In the figure, reference numeral 11 indicates a pair of fitting members, the fitting members 11 are formed in a substantially U shape, and the pair of fitting members 11 are connected by a connecting member 14. An end contact portion 15 is formed on the inner surface of the fitting member 11. A positioning portion 16 is provided below the end contact portion 15, and the positioning portion 16 is provided.
Is formed in a shape that is recessed in the direction in which the backing metal 2 projects. The depth dimension M of the positioning portion 16 is set to be equal to the root dimension L.

A support protrusion 1 is provided on the inner lower surface of the fitting member 11.
7 and 18 are formed. The support protrusion 18 is the support protrusion 1.
The support projections 17 are formed to have a size slightly smaller than 7, and the support protrusions 17 are formed to have a size slightly smaller than the thickness of the backing plate 2. A screw hole 19 is formed at the center of the connecting portion 14, and the screw hole 19 penetrates the connecting portion 14. A temporary fixing bolt 20 is attached to the screw hole 19. Support protrusion 1
7, 18 and the screw hole 19 and the temporary fixing bolt 20 constitute a temporary fixing means.

Next, the work of temporarily fixing the backing plate 2 to the column steel 1 using the backing plate temporary fixing tool 10 will be described. The backing plate 2 is set on the backing plate temporary stopper 10, and the tip of the backing plate 2 is fitted to the positioning portion 16. Then, insert the backing metal temporary fastener 10 from the end 1a side of the column steel 1,
The end contact portion 15 is brought into contact with the end 1a of the column steel 1.
Then, while maintaining the state in which the tip of the backing metal 2 is completely fitted to the positioning portion 16, the temporary fixing bolt 20 is tightened, and the lower end portion of the temporary fixing bolt 20 and the protrusions 17 and 1 are indicated by the chain line.
The side plates of the column steel 1 are sandwiched by the 8 and the backing metal temporary fastener 10 is fixed to the column steel 1. The backing metal 2 is sandwiched between the inner lower surface of the fitting member 11 and the inner surface of the column steel 1 and is temporarily fixed.

Since the protrusion 18 is formed to have a size smaller than that of the protrusion 17 as described above, the pressing force generated by tightening the temporary fixing bolt 20 is sufficiently transmitted to the backing plate 2 to secure the backing plate 2. It can be temporarily fixed. Positioning part 16
Since the depth dimension M is set to be equal to the root dimension L, the end abutting portion 15 abuts on the end portion of the column steel 1 and the end portion of the backing metal 2 is completely positioned on the positioning portion 16. , The backing plate 2 can be temporarily fixed to the end portion 1a of the column steel 1 so as to project by the root dimension L.
The backing plate 2 is temporarily fixed by the backing plate temporary fixing tool 10, and then the backing plate 2 is welded and attached to the column steel 1. Then, loosen the temporary fixing bolt 20 and remove the back metal temporary fixing tool 10. By using the backing metal temporary fastener 10 as described above, both the route setting and the temporary fastening of the backing metal 2 can be performed.

The embodiment of the present invention has been described above in detail. However, the specific configuration is not limited to this embodiment, and the present invention can be made even if the design is changed within the scope not departing from the gist of the present invention. Included in the device. INDUSTRIAL APPLICABILITY The steel backing temporary backing fastener of the present invention can be applied to welding the backing not only to column steel but also to other kinds of steel. It can also be applied when welding an integrated backing metal or the like.

[0011]

As described above, according to the present invention, the root size can be made constant regardless of the operator, and the backing metal can be positioned and temporarily fixed.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which a backing metal positioning tool for an iron aggregate according to an embodiment of the present invention is used.

FIG. 2 is a plan view of a steel backing metal backing plate positioning tool according to an embodiment of the present invention.

FIG. 3 is a front view of a backing metal positioning device for a steel aggregate according to an embodiment of the present invention.

FIG. 4 is a perspective view showing a state in which the backing metal positioning tool of the steel aggregate according to the embodiment of the present invention is used.

FIG. 5 is a perspective view showing a state where a backing metal is welded to a steel aggregate.

FIG. 6 is a perspective view of a backing metal.

[Explanation of symbols]

 1 Column Steel 2 Backing Plate 10 Backing Plate Temporary Fixture 11 Fitting Member 15 End Abutting Part 16 Positioning Part 19 Screw Hole 20 Temporary Fixing Bolt 17, 18 Supporting Protrusion

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A backing metal provisional for a steel aggregate, which is arranged on the inner surface of a steel aggregate and temporarily fixed to a predetermined position a backing metal which is welded at a predetermined position where a part of the end of the steel aggregate protrudes by a root dimension. A stopper, a U-shaped fitting member that fits into the steel aggregate from the end of the steel aggregate, and an end contact portion that is formed in the fitting member and abuts against the end of the steel aggregate, A positioning portion formed in a shape that is recessed by a root dimension in a direction in which the backing metal projects from the end contact portion, a support protrusion that is formed on the fitting member and abuts on an iron aggregate, and the fitting member Of the backing metal temporary fixing tool for an iron frame material, comprising: a temporary fixing bolt attached to a side opposite to a portion where the supporting protrusion is formed, and a tip end portion of the temporary fixing bolt operable in a direction of contacting the steel frame and a direction of moving away from the steel frame.