JP3113713U - Steel frame repair tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correct a positional relationship when assembling a steel frame, when members are competing with each other or too far apart from a normal position.
An operating bolt 13 having screw portions 13A and 13B in opposite screw directions at two positions on the front and rear sides, and a pair of moving pieces 2 screwed to the front and rear screw portions of the operating bolt, 16 and a pair of guide plates 21 and 21 extending forward from both side surfaces of the moving piece 16 on the rear side, and a locking column 18 (10) that can be inserted into the bolt hole of the beam member is provided on the rear side. In a tool projecting from the upper and lower ends of the moving piece and the upper end of the moving piece on the front side, the moving piece 2 on the front side is pushed to a position displaced downward from the lower end of the guide plate 21 and is applied to the member to be separated. The contact surfaces 6 and 7 are set, and the length of the guide plate is set so that the front end of the guide plate is positioned further forward than the moving piece on the front side when the moving pieces are brought close to each other as much as possible.
[Selection] Figure 1

Description

  The present invention relates to a steel frame correcting tool used to correct a positional relationship when a beam member connected at a joint or joint is different from a normal position when assembling a steel frame.

  When assembling a steel frame in a structure, distortion occurs due to the effect of welding, and due to assembly errors, the beam members connected at joints and joints are too far apart from their normal positions, or vice versa. As a result, the assembly work may not be continued as it is. 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 due to problems such as scaffolding. Doing this 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 parts with the screw directions opposite to each other are From the both side surfaces of the moving bolt on the rear side where the operating bolt having the location, the pair of moving pieces screwed to the respective screw parts before and after the operating bolt, and the head for rotating the operating bolt are located It has a pair of guide plates that extend toward the front and restrict the axial rotation while allowing the moving piece to move in the front-rear direction by sandwiching the moving piece in the front, and can be inserted into the bolt hole of the beam member The inventor of the present application has proposed a tool in which locking pillars are projected from the upper and lower ends of the moving piece on the rear side and the upper end of the moving piece on the front side.
JP 11-117538 A

  The tool described in Patent Document 1 has an epoch-making usability compared to conventional work using a lever block or a bar, but as shown in FIG. When the pieces are brought close to each other as much as possible, the front end of the guide plate is configured to align with the moving piece on the front side. This is to push down the beam member with a thick flange to drop it down. However, with this configuration, the total length of the guide plate is limited, and the maximum separation distance between moving pieces cannot be increased. was there. In this case, as shown in FIG. 1 of the same document, the pushing column is secured by shifting the locking column protruding from the moving piece forward (backward) from the end of the moving piece. However, there is a problem in that the yield of manufacturing is poor because the moving piece and the locking pillar are firmly fixed by welding, and the weight of the whole is increased.

  This device is operated for the purpose of providing a tool that solves the above-mentioned problems of the prior art, and has an operation bolt having two screw parts in opposite front and rear screw directions, A pair of moving pieces that are screwed into the front and rear screw portions of the operating bolt, and a rear moving piece on which the head for rotating operation of the operating bolt is located, are extended forward, Having a pair of guide plates for restricting axial rotation while allowing the moving piece to move in the front-rear direction by sandwiching the moving piece, a locking column that can be inserted into the bolt hole of the beam member is provided on the rear moving piece. In the tool protruding from the upper and lower ends and the upper end of the moving piece on the front side, a contact surface to the target member is set at a position displaced downward from the lower end of the guide plate of the moving piece on the front side. In addition, the length of the guide plate The front end of the guide plate when brought close to the maximum, characterized in that the set so as to be positioned further forward than the moving pieces of the front side.

  Therefore, according to the tool of the present invention, the member to be pushed away does not collide with the front end of the guide plate, so that it is possible to set the total length of the guide plate long and push the large separation distance between the moving pieces. It is possible to increase the width. As a result, the tool is not limited to correcting the position when assembling the steel frame, and can be used for various purposes. As an example, when the pillar is set up, the pillar is fixed to the anchor bolt, and when the reinforcing bar is obstructing at that time, the use of spreading the pillar is mentioned.

  In addition, as in the prior art, it is not necessary to shift the locking column forward (backward) from the end of the moving piece in order to ensure the pushing width, so that the manufacturing becomes easy and the weight is reduced. Is possible.

  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 16 in the figure denote moving pieces before and after moving with the rotation of the operating bolt 13. These moving pieces 2 and 16 are screwed into the threaded portions 13B and 13A of the working 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.

  On both side surfaces of the moving piece 16 on the rear side, a pair of flat steel plate guide plates 21 and 21 extending forward is attached to the bolts 20 and 20 by welding. The guide plates 21 and 21 restrict the rotation of the moving pieces in the axial direction, and prevent the operating bolt 13 from bending in a bow shape when a load is applied between the moving pieces by pushing the members open. belongs to. Two pairs of rollers 3, 3, 3, 3 are pivotally supported on the upper and lower sides of the front side movable piece 2, and these guides are supported by holding the upper and lower surfaces of the guide plates 21, 21 so as to roll. Smooth movement of the moving piece on the front side restricted by the plate. In the figure, reference numeral 10 denotes the shaft of each of the rollers 3, 9 denotes a pressing plate for preventing the guide plates 21 and 21 from opening, and 5 denotes a split pin for preventing the retaining plate.

  At the upper and lower ends of the moving piece 16 on the rear side, locking columns 18 and 18 that can be inserted into the bolt holes of the beam member are projected. The locking column 18 is screwed into a screw hole drilled in the moving piece 16 by a screw portion 9 provided at the tip. In this embodiment, the locking column 18 has an optimum outer diameter for the bolt hole of the beam member. As shown in FIG. 4, locking pillars having different outer diameters are prepared so that 18 can be selected. 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-part hole (inner diameter: 18 mm), an engaging column having an outer diameter of 17.8 mm is used. Is prepared.

  Also, a locking column 10 that can be inserted into the bolt hole of the beam member protrudes from the upper end of the moving piece 2 on the front side. In this embodiment, the locking column is a hole formed in the moving piece. It is fixed with a pin after it is inserted into. The locking column 10 has an outer diameter of 16.5 mm so that it can be used as a bolt hole having a 6-minute hole (inner diameter 22 mm) and a 5-minute hole (inner diameter 18 mm). While the locking pillars 18 and 18 are required to have strict dimensions, the locking pillar 10 is not required because the former has a workability if it is loose with respect to the bolt holes. The latter case is based on the reason that such a fear is low.

  Reference numerals 6 and 7 in the drawing of the moving piece 2 on the front side indicate contact surfaces to the member to be pushed away, and these are arranged at positions displaced downward from the lower end of the guide plate 21 to A member to be separated is prevented from coming into contact with the end of the guide plate. Further, by making the contact surface stepped, two types of upper and lower contact surfaces 6 and 7 displaced in the front-rear direction are formed. As a result, it is possible to selectively use the upper and lower contact surfaces 6 and 7 depending on the thickness of the flange of the beam member, or to use the lower contact surface 7 located rearward when the amount of biding of the member is large. Become. In the figure, reference numeral 8 denotes a wire locking hole when the small beam is pulled with a wire. Of course, although not shown, this tool may be provided with a hanging ring for tying a string to prevent it from dropping when it 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 18 at the lower end of the moving piece 16 on the rear side into the bolt hole T1 of the beam T and moves on the front side. The abutting member 7 at the front end of the piece 2 is pressed against the target member T2 (here, a beam) and advanced by the rotation of the operating bolt 13, whereby the competing members can be pushed apart. FIG. 8 is a view showing a state in which the upper contact surface 6 is used when the target member T2 having a thicker flange is pushed away. In this embodiment, the contact portions 6 and 7 of the moving piece 2 on the front side are tapered surfaces having a triangular cross section so that the target member can be pushed away from the oblique direction as shown in FIG. Yes. By doing so, the target member T2 is pushed inward without opening outward.

  Next, FIG. 9 is a figure which shows the usage example used for the use which draws up object member T and T (here beam) which left this tool too much. In this case, the entire tool 1 is turned upside down, the locking column 10 of the moving piece 2 on the front side is placed in the bolt hole T1 of one target member T, and the locking column 18 of the moving piece 16 on the rear side is set on the other side. The target members T and T that have been separated too much are drawn by being inserted into the bolt holes T1 of the target member T and bringing the locking pieces closer by the rotation of the operating bolt 13. Since this usage is well known in the above-mentioned Patent Document 1, detailed description thereof is omitted.

The side view of the proximity | contact state of the moving pieces of the tool of this invention. Side view of a partly cut away state of moving pieces of the tool of this device Plan view of the proximity of moving pieces of the tool of this device The side view of the Example from which the locking pillar of the tool of this invention differs. The bottom view of the moving piece of the front side of the tool of this invention. The top view which shows the usage example of the tool of this invention. The side view which shows the usage example of the tool of this invention. The side view which shows the usage example from which the tool of this invention differs. The side view which shows the usage example from which the tool of this invention differs.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tool 2 Front side moving piece 6 Abutting surface 7 Abutting surface 10 Locking column 13 Actuating bolt 16 Rear side moving piece 18 Locking column

Claims (5)

  Actuating bolts having two screw parts in opposite front and rear screw directions, a pair of moving pieces that are screwed to the front and rear screw parts of the working bolt, and a head for rotating the working bolt A pair of guide plates that extend forward from both side surfaces of the moving piece on the rear side where the section is located, and restrict the axial rotation while allowing the moving piece to move in the front-rear direction by sandwiching the moving piece on the front side And a locking column that can be inserted into the bolt hole of the beam member and protrudes from the upper and lower ends of the moving piece on the rear side and the upper end of the moving piece on the front side. Set the contact surface to the member to be pushed and released at a position displaced downward from the lower end, and the front end of the guide plate is on the front side when the length of the guide plate is set as close as possible between the moving pieces That it was set to be located further forward than the moving piece Tool steel framework modifications and butterflies.   2. The steel frame correcting device according to claim 1, wherein a plurality of types of upper and lower contact surfaces displaced in the front-rear direction are provided by forming a contact surface with a member to be pushed away from the front side moving piece into a stepped shape. tool. The steel frame correcting tool according to claim 1 or 2, wherein a plurality of types of locking pillars having different outer diameters can be screwed to the moving piece.   The steel frame correcting tool according to any one of claims 1 to 3, wherein a contact surface of the moving piece on the front side is a tapered surface having a triangular cross section. The steel frame correcting tool according to any one of claims 1 to 4, wherein a roller to be rolled is supported while sandwiching the upper and lower surfaces of the guide plate above and below both side surfaces of the moving piece on the front side.

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