JPH07139181A - Temporary band assembling tool for steel frame splice - Google Patents

Abstract

PURPOSE:To facilitate a work to temporarily assemble especially an upper splice when a splice being a connection member between steel frames is temporarily assembled during delivery at a steel frame processing site. CONSTITUTION:An assembly tool 1 for a steel frame splice plate comprises a locking means 2 for a steel frame and a band supporting part 3 positioned right below an upper flange 51. The locking means 2 comprises a web fitting-in part 23 formed below a body, a bolt hole locking part 21 formed in a hook-form manner below the band support part 3, and a fixing piece 22 moving forward and backward in a position approximately facing the bolt hole locking part 21. Further, this side, in the insertion direction of a band 62, of a band support part 3 is set at a high level. A support roller R is arranged to one or both of the front end and the rear end in an insertion direction of the band support part 3.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for temporarily assembling a splice which is a connecting member for a steel frame at a steel frame processing site.
In particular, the present invention relates to a band temporary assembly tool for a steel frame splice that allows one person to easily perform the temporary assembly work of the upper splice.

[0002]

BACKGROUND OF THE INVENTION In a steel frame assembling process at a construction site, when the steel frame is carried into this process in order to facilitate the work, it is already possible to carry the splices for connection into the both ends of the steel frame. Is desired. A typical example of such a steel frame is an H-shaped steel frame 5, which is so-called H-shaped steel, and is configured to have an H-shaped cross section by an upper flange 51, a web 52, and a lower flange 53.

In such an H-shaped steel frame 5, specifically, the upper splice 6A has an upper flange 51 as shown in FIG.
The splice plate 61 and the band 6 on the upper surface and the lower surface, respectively.
2 and 2 are assembled in a state of protruding from the steel frame end 54 of the H-shaped steel frame 5 in an eaves shape, while the lower splice 6B has a splice plate 61 and a band 62 on the upper surface and the lower surface of the lower flange 53, respectively. The steel frame 5 is assembled so that it does not protrude from the steel frame end 54. By the way, when connecting the H-shaped steel frame 5, the H-shaped steel frame 5 in which the upper and lower splices 6A and 6B are temporarily assembled is hung by a crane, and the H-shaped steel frame 5 of the other H-shaped steel frame 5 to be connected is lowered so as to be aligned with the steel frame end 54 from above. Handle the splice plate 61 so that it is caught. At that time, the band 62 in the upper splice 6A
In the temporary assembly state, it can be opened in the width direction of the steel frame in advance.

Due to such a working mode, as described above, the lower splice 6B is also temporarily assembled to the H-shaped steel frame 5 before shipment. At that time, in the steel frame processing site, a splice plate of several 10 kg is used. It is common practice that two people support 61 and the other performs positioning and bolting. At the construction site, the upper splice 6
After installing A, lower splice 6 in a temporarily assembled state
When B is moved to the connecting portion for positioning and bolting, the splice plate 61 is manually held.

However, in a steel frame processing site, the method of supporting the lower splice 6B by two persons and positioning and bolting the other person is difficult because the splicing plate 61 is heavy and difficult to position, and the work is required. It had the drawback of being inefficient. Further, the method of manually holding the splice plate 61 at the construction site is not only poor in workability, but also often at a high place, which is extremely dangerous for the worker and the person below. This tendency is more remarkable when the web 52 is a long load type.

In view of such a background, the present applicant has developed a device capable of performing this work safely and easily by one person, and has already disclosed Japanese Patent Application No. 5-120513 "Assembling tool for steel splice plate". Is proposed. As a result, when the lower splice 6B for connection is bolted to the steel frame at a steel frame processing site or a construction site, a series of bolt tightening work can be easily and safely performed by one person.

By the way, the upper splice 6A is easier to assemble than the lower splice 6B, and particularly the band 62 is lighter than the splice plate 61. Was not required. However, recently, due to the aging of workers, labor saving has been required in such work.

[0008]

[Technical Items Attempted to Develop] The present invention has been made in view of such a background, and particularly when the splice which is the connecting member of the steel frame is temporarily assembled at the time of shipping at the steel frame processing site, the upper splice is used. This is an attempt to develop a new band temporary assembly tool for steel frame splices that can easily perform the temporary assembly work of 1.

[0009]

[Constitution of the invention]

[Means for Achieving the Object] The first invention of the band temporary assembly in the steel frame splice according to the present application is to have a locking means for the steel frame and a band support portion located immediately below the upper flange with respect to the main body. It becomes a feature.

In addition to the above requirements, the second invention of the band temporary assembly in the steel frame splice according to the present application is such that the locking means is provided at the web fitting portion formed below the main body and below the band bearing portion. It is characterized by comprising a bolt hole locking portion formed in a hook shape and a fixing piece that advances and retracts at a position substantially facing the bolt hole locking portion.

Furthermore, the third invention of the band temporary assembly in the steel frame splice according to the present application is characterized in that, in addition to the above-mentioned requirements, the band support portion is set high on the front side in the band insertion direction.

Furthermore, in addition to the above-mentioned requirements, a fourth invention of the band temporary assembly in the steel frame splice according to the present application is that in which one or both of the front end and the rear end of the band support portion in the insertion direction are supported rollers. It is characterized by the provision of. And these means are intended to achieve the said objective.

[0013]

The band temporary assembly for the steel frame splice of the present invention has the locking means for the steel frame with respect to the main body and the band support portion located immediately below the upper flange, so that the upper flange of the upper flange can be assembled during the temporary band assembly work. The band is located near the bottom. The locking means includes a web fitting portion formed below the main body, a bolt hole locking portion formed in a hook shape below the band support portion, and a fixing member that moves forward and backward at a position substantially facing the bolt hole locking portion. Since it is composed of one piece, the weight of the main body is supported by this portion, and a space where the band is located is secured between the portion and the lower flange. In addition, the band bearing part is placed on the band bearing part by setting the front side in the band inserting direction to be high, or by providing a bearing roller at one or both of the front end and the rear end in the inserting direction of the band bearing part. The sliding of the band becomes smooth.

[0014]

EXAMPLE First, FIG. 8 shows a mode of the H-shaped steel frame 5 at a construction site. Splice 6 is splice plate 61 and band 6
2, the upper splice 6A is attached to the upper and lower surfaces of the upper flange 51 so as to project from the steel frame end 54 of the H-shaped steel frame 5 in an eaves shape, while the lower splice 6B is attached to the upper and lower surfaces of the lower flange 53. The H-shaped steel frame 5 is assembled such that it does not protrude from the steel frame end 54. By the way, when connecting the H-shaped steel frame 5, splices 6A, 6B
The H-shaped steel frame 5 temporarily fixed to the above is lowered so as to be aligned with the steel frame end 54 of the other H-shaped steel frame 5 to be connected by hanging with a crane, and the upper splice plate 61 is handled so as to be hooked. At that time, band 6 in upper splice 6A
Regarding No. 2, it is in a temporary stop state so that it can be opened in the width direction of the steel frame in advance. Further, the web 52 is provided with three bolt holes 65 for locking the band temporary assembly 1 in the steel frame splice of the present invention as an example. The band temporary assembly 1 in the steel frame splice of the present invention is for assembling the upper splice 6A on the upper surface and the lower surface of the upper flange 51 in a state of protruding from the steel frame end 54 in an eaves shape as described above. Will be specifically described with reference to the drawings. Reference numeral 1 in the figure
Shown in FIG. 1 is a band temporary assembly in a steel splice according to the present invention, which comprises a locking means 2 and a band support portion 3 as main members. The term "main body" used in claims 1 and 2 refers to the temporary band assembly 1 for the steel splice of the present invention, and the temporary band assembly 1 for the steel splice will be referred to as the main body in the following description.

First, the locking means 2 will be described. The locking means 2 has a web fitting portion 23 formed below the main body, a bolt hole locking portion 21 formed in a hook shape below the band support portion 3, and a position substantially facing the bolt hole locking portion 21. And a fixed piece 22 that moves forward and backward. The bolt hole locking portion 21 is a hook-shaped member provided substantially at the center of the main body, and is hooked to the bolt hole 65 provided in the web 52 of the H-shaped steel frame 5 to substantially support the own weight of the main body. It is a part. The fixing piece 22 is the bolt hole locking portion 21.
Is a member that advances and retreats at a position substantially opposite to, and prevents the engagement between the bolt hole engagement portion 21 and the bolt hole 65 from being released by the tip of the member abutting the web 52 in the protruding state. In this example, a butterfly bolt is used as an example. The web fitting portion 23 is provided below the main body, and is fitted with the web 52 of the H-shaped steel frame 5 to perform centering and to support the main body at two points of this portion and the bolt hole locking portion 21. The main body is prevented from inclining in the horizontal direction when the band 62 is placed on the band support portion 3. In the locking means 2 configured as described above, the bolt hole locking portion 21 supports the weight of the main body, so that the web fitting portion 23 provided below the H-shaped steel frame 5 when mounted on the H-shaped steel frame 5. The state where the lower splice 6B is separated from the lower flange 53 makes it possible to mount the machine without being disturbed by the lower splice 6B even if the lower splice 6B has been temporarily assembled in advance.

Next, the band support portion 3 will be described. The band support portion 3 is a substantially flat plate-shaped member located immediately below the upper flange 51, and the band 62 is placed on the upper surface thereof. Further, the band support portion 3 is set high on the front side in the band insertion direction. By adopting such a structure, the band 62 is supported at two points, that is, the front part and the rear part in the insertion direction of the band support part 3, so that the front and rear sliding becomes smooth.

The band temporary assembly 1 for the steel splice of the present invention has the specific structure as described above, and the upper splice 6A is temporarily assembled at the steel frame processing site as follows. First, the band temporary assembly 1 for the steel frame splice is attached to the H-shaped steel frame 5, as shown in FIG. At this time, the bolt hole locking portion 21 is hooked on the bolt hole 65 provided in the web 52 of the H-shaped steel frame 5, and this portion substantially supports the weight of the main body. At the same time, the web fitting portion 23 is engaged with the web 52.
Next, the fixing piece 2 at a position substantially facing the bolt hole locking portion 21
By tightening 2 (a butterfly bolt), it is made to be in a protruding state, and its tip is brought into contact with the web 52. In this state, the unlocking of the bolt hole locking portion 21 and the bolt hole 65 is prevented. As described above, the attachment of the band temporary assembly 1 to the H-shaped steel frame 5 in the steel frame splice is completed.

Next, the upper splice 6A which is the purpose of this work
Make a temporary assembly. First, after mounting the band 62 on the band support portion 3, the bolt holes H are positioned. At this time, since the band support portion 3 is set high on the front side in the insertion direction of the band 62, the band 62 is supported at two points, the front direction and the rear direction in the insertion direction of the band support portion 3, so that the front and rear sliding portions are supported. The movement becomes smooth. Next, the splice plate 61 is placed on the upper flange 51 to position the bolt holes (see FIG. 4).
(See (b)). Then, insert the bolt 63 into the bolt hole H,
The nut 64 is engaged and tightened.

Finally, the fixing piece 22 (bowl bolt) is loosened to retreat, the engagement between the bolt hole locking portion 21 and the bolt hole 65 is released, and then the main body is removed (FIG. 4).
(See (c)). As described above, the band temporary assembling work for a series of steel frame splices is completed.

As defined in claim 4, the band support portion 3 has a structure in which the support roller R is provided at either or both of the front end and the rear end of the band 62 in the insertion direction. Sliding back and forth becomes smooth (see Fig. 5).

[0021]

Other Embodiments In the previous embodiment, it was necessary to provide the bolt holes 65 in the web 52 of the H-shaped steel frame 5 in order to attach the main body to the H-shaped steel frame 5. This part supports the weight of the main body, and the main body and the lower flange 53
It was to secure a space for positioning the band 62 constituting the lower splice 6B between them. Therefore, if the working mode is such that the lower splice 6B is temporarily assembled after the upper splice 6A is temporarily assembled,
The need to provide the bolt holes 65 in the web 52 can be eliminated by adopting the following embodiment. One of other embodiments of the band temporary assembly 1 for a steel frame splice is shown as 101 in FIG. 6 and will be described below. The band temporary assembly 101 in the steel frame splice is mainly composed of the locking means 102 and the band support portion 103 as in the example shown in the above embodiment.

First, the locking means 102 will be described. The locking means 102 is a web fitting portion 12 formed below the main body.
3, the band supporting portion 103, a locking hole 124 located below the band supporting portion 103, and a fixing piece 122. The locking hole 124 is a hole formed by engraving a female screw provided substantially in the center of the body,
Tighten a fixing piece 122 (a butterfly bolt) described later here. The fixed piece 122 is a member to be tightened in the locking hole 124, and the tip of the fixed piece 122 contacts the web 52 in the protruding state.
The body is locked to the H-shaped steel frame 5. In this example, a butterfly bolt is used as an example. The web fitting portion 123 is provided below the main body, and is fitted with the web 52 of the H-shaped steel frame 5 to perform centering,
This prevents the main body from tilting in the horizontal direction when the band 62 is placed on the band support portion 103. In the case of the present embodiment, it is a portion that substantially supports the weight of the main body.

Next, the band support portion 103 will be described. The band support portion 103 is a substantially flat plate-shaped member located immediately below the upper flange 51, and has a band 62 on its upper surface.
To place.

The band temporary assembly tool 101 for the steel frame splice of the present invention has the specific structure as described above, and the upper splice 6A is temporarily assembled at the steel frame processing site as follows. First, the band temporary assembly 101 for the steel frame splice is attached to the H-shaped steel frame 5, as shown in FIG. At this time, the web fitting portion 123 is engaged with the web 52, and the weight of the main body is supported at this portion. Next, the fixing piece 122 (a butterfly bolt) is tightened into the locking hole 124 so as to be in a protruding state, and the tip end thereof is brought into contact with the web 52. In this state, the main body is locked to the H-shaped steel frame 5. As described above, the attachment of the band temporary assembly 101 to the H-shaped steel frame 5 in the steel frame splice is completed. Thereafter, the upper splice 6A is tentatively assembled in the same manner as in the previous example.

In the above-mentioned two embodiments, an example in which the locking means acts on the web 52 is shown. The point is that the locking means for the steel frame and the upper flange are defined as defined in claim 1. Since it suffices to have the band support portion located immediately below, the following embodiments can be adopted based on the technical idea of the present invention.

Shown as 201 in FIG. 7 is one of other embodiments of the band temporary assembly 1 in the steel frame splice of the present invention, which is the locking means 202 and the band bearing portion 20.
3 and 3. The locking means 202 includes an upper flange 51,
It is a U-shaped member that is installed so as to cover the splice plate 61 placed on it and has a band support portion 203 at the end. Further, by setting the width thereof to be substantially the same as that of the upper flange 51, centering can be performed by installation.

First, a splice plate 61 is placed on the upper flange 51.
Is placed so that the bolt holes H are positioned, and then the temporary assembly tool 201 in the steel frame splice is inserted and locked from the steel frame end 54 side. Then the band support section 2
The band 62 is placed on 03, the bolt hole H is positioned, and the bolt 63 and the nut 64 are tightened. The temporary assembly 201 of this type is easy to handle because it is not necessary to perform a special operation for locking the H-shaped steel frame 5.

[0028]

The band temporary assembly 1 in the steel frame splice of the present invention has the above-mentioned structure, and the following effects are exhibited. First, since the band temporary assembly 1 in the steel frame splice of the present invention has the locking means 2 for the steel frame and the band support portion 3 located immediately below the upper flange 51 with respect to the main body, the upper flange during the band temporary assembly work. A band 62 is located near the lower part of 51.

Further, the locking means includes a web fitting portion 23 formed below the main body, a bolt hole locking portion 21 formed in a hook shape below the band support portion 3, and a bolt hole locking portion 21. Since it is composed of the fixed piece 22 that advances and retreats at the opposing position, the weight of the main body is supported at this portion, and a space where the band 62 is located is secured between the portion and the lower flange 53.

Further, the band support portion 3 is set to have a high front side in the band insertion direction, or the support roller R is provided at either one or both of the front end and the rear end of the band support portion 3 in the insertion direction. The band 62 placed on the support portion 3 slides smoothly. Due to these effects, when temporarily assembling the splice 6 which is the connecting member of the steel frame at the time of shipping at the steel frame processing site, especially the temporary assembling work of the upper splice 6A can be easily performed by one person even if the person is weak such as the elderly. You can do it.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a band temporary assembly in a steel splice of the present invention.

FIG. 2 is a perspective view showing the same band temporary assembly as seen obliquely from the rear.

FIG. 3 is a side view of the same.

FIG. 4 is a side view showing, step by step, how the upper splice is temporarily assembled using the temporary band assembly of the present invention.

FIG. 5 is a side view showing an embodiment in which a supporting roller is provided in the band supporting portion.

FIG. 6 is a perspective view showing a usage state of another embodiment of the band temporary assembly in the steel splice of the present invention.

FIG. 7 is a perspective view showing a usage state of still another embodiment of the same.

FIG. 8 is a perspective view showing a step of connecting an H-shaped steel frame at a construction site step by step.

[Explanation of symbols]

 1 Band Temporary Assembly Tool for Steel Splice 2 Locking Means 3 Band Support 5 H-Shaped Steel 6 Splice 6A Upper Splice 6B Lower Splice 21 Bolt Hole Locking Part 22 Fixing Piece 23 Web Fitting 24 Locking Hole 51 Upper Flange 52 Web 53 Lower Flange 54 Steel End 55 Bead 61 Splice Plate 62 Band 63 Bolt 64 Nut 65 Bolt Hole 101 Temporary Assembly Tool for Steel Splice 102 Locking Means 103 Band Bearing 122 Fixing Piece 123 Web Fitting 124 Locking Hole 201 Temporary assembly tool for steel splice 202 Locking means 203 Band support H bolt hole R Support roller

Claims (4)

[Claims] 1. A band provisional assembly for a steel frame splice, comprising: a locking means for a steel frame and a band supporting portion located directly below an upper flange with respect to the main body. 2. The locking means substantially faces the web fitting portion formed below the main body, the bolt hole locking portion formed in a hook shape below the band support portion, and the bolt hole locking portion. The band temporary assembly for a steel frame splice according to claim 1, characterized in that it comprises a fixing piece that advances and retracts at a position. 3. The temporary band assembly for a steel frame splice according to claim 1, wherein the band support portion is set higher on the front side in the band insertion direction. 4. A band temporary assembly for a steel frame splice according to claim 1, 2 or 3, wherein a bearing roller is provided on either or both of a front end and a rear end of the band bearing portion in the insertion direction. Ingredient