JP3113712U - Steel frame repair tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correct a positional relationship when assembling a steel frame when a column and a beam compete with each other and differ from a normal position.
An operating bolt 13 having screw portions 13B, 13A in opposite screw directions at two positions on the front and rear sides, and a pair of moving pieces 2 screwed on each of the front and rear screw portions of the operating bolt, 6, and a locking column 8 that protrudes into the bolt hole of the beam member at the lower end of the moving piece on the rear side where the head 14 for rotating the operation bolt is located. While being able to be screwed to the moving piece, screw holes 7A and 7B of the moving piece for screwing are provided at a plurality of locations before and after the moving piece.
[Selection] Figure 1

Description

  The present invention relates to a steel frame correction tool used to correct a positional relationship when a steel frame is assembled and a column and a beam compete with each other and differ from a normal position.

  When assembling a steel frame with bolts in a structure, if the column is bent due to the influence of welding, the column and beam will be too far apart from each other, or they will compete against each other and will be assembled as they are May not continue. In such a case, conventionally, the lever block or the like is used to pull the two together, or conversely, a bar is applied to push the parts apart.

  In the above case, it is relatively easy to pull them together with a lever block, etc., but it is difficult to push away with a bar because of problems such as scaffolding. The use of is dangerous because it is dangerous.

On the other hand, when constructing a steel frame, as a tool used to correct the positional relationship between the two beam members when the beam members to be connected are separated or compete with each other, the screw portions with the screw directions opposite to each other are A pair of moving pieces can be screwed into each threaded portion of the operating bolt at the location, and the upper and lower ends of the moving piece on the rear side where the head for rotating operation of the operating bolt is located can be inserted into the bolt holes of the beam member The inventor of the present application has proposed a tool that protrudes a locking column and protrudes a locking column that can be inserted into the bolt hole of the beam member at the lower end of the moving piece on the front side.
JP-A-11-117538

  This device relates to the improved creation of the tool disclosed in Patent Document 1 described above, and was created with the purpose of specializing the function in pushing open when the pillar and the beam compete and improving the usability. .

  That is, the steel frame correcting tool of the present invention has a pair of movements that are screwed into each of the operating bolts having the screw parts in the two front and rear directions and the screw parts before and after the above operating bolts. In a tool comprising a piece, and a locking column that can be inserted into the bolt hole of the beam member at the lower end of the moving piece on the rear side where the head for rotating the operation bolt is located, the locking column is moved to the moving piece. The screw hole of the moving piece for screwing is provided at a plurality of locations before and after the moving piece.

  Therefore, according to the tool of the present invention, the function is specialized for pushing the members apart, so that the method of use is simple, there is no trouble in using it on the site, and the worker who feels resistance to using the new tool. Can be expected to be used without giving a sense of incongruity. In addition, the locking column can be attached to and detached from the moving piece by screwing, and the screw holes of the moving piece to which the locking column is to be screwed are provided at a plurality of locations before and after the moving piece, thereby Since it is possible to adjust the positional relationship between the tool and the member to be pushed away by replacing the pillar, there is an effect that it is not necessary to use a plurality of types of tools depending on the situation at the site.

  Hereinafter, specific examples of the tool 1 of the present invention will be described with reference to the accompanying drawings. Reference numeral 13 in the drawing denotes an operating bolt, which is provided with screw portions 13B and 13A having opposite screw directions at two front and rear portions and a head 14 for rotating operation at the rear end. In this embodiment, the head 14 has a nut shape that can be engaged with a spectacle wrench or a monkey wrench, and is provided with a collar 15 for preventing these slips.

  Reference numerals 2 and 6 in the figure denote moving pieces before and after moving with the rotation of the operating bolt 13. These moving pieces 2 and 6 are screwed into the threaded portions 13B and 13A of the operating bolt 13 by female screws penetrating in the front-rear direction, and the screw directions of the threaded portions are opposite to each other. Will move in the separation or proximity direction. In this embodiment, the maximum separation distance is assumed to be 50 mm. However, in the case of a steel frame on which the present invention is premised, the above separation distance is sufficient for correction because it is about 5 mm to 15 mm even if competing. It is a long distance.

  On both side surfaces of the moving piece 2 on the front side, a pair of flat steel plate guide plates 4, 4 extending backward is attached by bolts 5, 5. The guide plates 4 and 4 are for restricting the rotation of the moving pieces in the axial direction, and for preventing the working bolt 13 from bending in a bow when a load is applied between the moving pieces by pushing the members open. belongs to. Two pairs of rollers 11, 11, 11, 11 are pivotally supported on the upper and lower sides of the moving piece 6 on the rear side, and the guide plates 4, 4 are sandwiched by the upper and lower surfaces of the guide plates 4, 4 so as to be guided. Smooth movement of the moving piece on the rear side regulated by the plate. In the figure, reference numeral 10 denotes a shaft of each of the above-described rollers 11, and 12 denotes a split pin for preventing the roller from coming off.

  A locking column 8 that can be inserted into the bolt hole of the beam member protrudes from the lower end of the moving piece 6 on the rear side. The locking column 8 is screwed into a screw hole formed in the movable piece 6 by a screw portion 9 provided at the tip. In this device, two screw holes 7A and 7B are arranged before and after the locking column. Thus, the distance between the locking column and the front side moving piece 2 can be adjusted by replacing the moving piece 6. In this embodiment, as shown in FIG. 5, locking columns having different outer diameters are prepared so that the locking column 8 having the optimum outer diameter can be selected for the bolt hole of the beam member. For example, when the bolt hole is a six-divided hole (inner diameter: 22 mm), an engaging column having an outer diameter of 21.8 mm is used. When the bolt hole is also a five-divided hole (inner diameter: 18 mm), an engaging column having an outer diameter of 17.8 mm is used. Is prepared.

  In this embodiment, the rear end of the moving piece 2 on the front side is extended in a convex shape and is inserted into a recess provided at the front end of the moving piece 6 on the rear side. When the movable piece 2 is moved forward, the screwed portion of the female screw of the movable piece with respect to the screw portion 13B of the operating bolt is prevented from being reduced. In addition, the rear end and upper end of the moving piece 6 on the rear side are cut out in a concave shape, and the upper corner of the moving piece 2 on the front side is cut out, thereby reducing the weight of the entire tool. Of course, this tool may be provided with a hanging ring for tying a string for preventing the fall when the tool is carried.

  As shown in FIG. 7, the steel frame correcting tool 1 of the present invention constructed as described above inserts the locking column 8 at the lower end of the moving piece 6 on the rear side into the bolt hole T1 of the steel frame T, and moves on the front side. By pressing the contact portion 3 at the front end of the piece 2 against the target member T2 (here, a column) and moving it forward by the rotation of the operating bolt 13, the competing members can be pushed apart. In this embodiment, the contact portion 3 of the moving piece 2 on the front side is formed as a tapered surface having a triangular cross section, so that the target member can be pushed away from the oblique direction as shown in FIG. By doing so, the target member T2 is pushed inward without opening outward.

The partially cutaway side view in the middle of separation of the moving pieces of the tool of this invention. FIG. Side view of the proximity of moving pieces of the tool of this device The side view in the middle of separation of the moving pieces of the tool of this invention. The side view of the Example from which the locking pillar of the tool of this invention differs. The top view which shows the usage example of the tool of this invention. The top view which shows the usage example of the tool of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tool 2 Front side moving piece 6 Back side moving piece 8 Locking pillar 13 Actuating bolt

Claims (4)

  It consists of a working bolt having two threaded parts in the front and rear direction, and a pair of moving pieces that are screwed into the front and rear threaded parts of the working bolt. In a tool in which a locking column that can be inserted into the bolt hole of the beam member is projected at the lower end of the moving piece on the rear side where the head is located, the locking column can be screwed to the moving piece, and the screw can be screwed. A steel frame correcting tool, wherein screw holes of a moving piece for attachment are provided at a plurality of positions before and after the moving piece.   The steel frame correcting tool according to claim 1, wherein a plurality of types of locking columns having different outer diameters can be screwed to the moving piece.   The steel frame correcting tool according to claim 1 or 2, wherein a tip of the moving piece on the front side is a tapered surface having a triangular cross section. A pair of guide plates extending rearward is attached to both side surfaces of the front moving piece, and a roller to be rolled is held while holding the upper and lower surfaces of the guide plate above and below both side surfaces of the rear moving piece. The steel frame correction tool according to any one of claims 1 to 3.

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