JP7123354B2 - connecting metal fittings - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting fitting that connects a joist to a joist, which constitutes an inclined floor surface portion of a gantry provided at a site of civil engineering work or the like.

At a civil engineering site or the like, a gantry is provided for vehicles, heavy machinery, and the like to pass through. This gantry is a temporary pedestal and is also used as a temporary storage place for scaffolding and various materials.

The gantry has a large number of pillars erected at intervals in the left-right and front-rear directions. In addition, large undercarriages are attached to the upper ends of the pillars, and a large pulley (beam) is suspended between adjacent large undercarriages with both ends thereof supported by the large undercarriages. A plurality of joists are arranged in the adjacent obi with a predetermined interval in the longitudinal direction of the obi. A floor panel made of, for example, is installed (see, for example, Patent Document 1, etc.). Note that the floor panel is fixed to the pillars using fixing metal fittings disclosed in Japanese Patent Application Laid-Open No. 2018-9412, for example. Here, as a structure for connecting the joist to the joist, a structure is adopted in which a pin is provided on the joist by welding, for example, and the pin is inserted through an insertion hole formed in the joist.

JP 2019-085696 A

However, there are many cases where the position of the pin on the joist does not match the position of the insertion hole of the joist due to manufacturing variations. In such a case, it is necessary to take measures such as tying with a binding wire such as a cord or a thin wire, which makes the work complicated. Furthermore, the joist provided with the pin has a problem that it becomes a member exclusively for the gantry with the same structure and is inferior in versatility.

In view of the above circumstances, the present invention is a device that facilitates the installation work, improves the versatility of the joists, and effectively prevents the joists from slipping even when applied to an inclined floor surface. An object of the present invention is to provide a connecting metal fitting in which

The connecting fitting of the present invention for solving the above-mentioned objects is a hoiki and a hoist provided with a rectangular tube-shaped support portion inclined in the extending direction, which constitutes an inclined floor surface portion of a gantry provided at a site of civil engineering work or the like. A connecting fitting for connecting a joist extending in a direction orthogonal to the joist, wherein the supporting portion connects the upper wall and the lower wall over the entire length at the central portion in the width direction orthogonal to the extending direction It has a reinforcing rib and two large pull side insertion holes formed side by side in the width direction on the upper surface,
comprising a main body and a pin for positioning the main body to the support of the large pulley;
The main body has an upward U-shape when viewed in the extending direction of the joist, and has a pair of joist wall surfaces facing in the direction in which the joist is inclined with a gap corresponding to the width of the joist, It has a joist fitting surface consisting of a joist support surface that connects the pair of joist wall surfaces and supports the joist,
The joist support surface is formed with two fitting-side insertion holes penetrating vertically at intervals in a direction perpendicular to the direction in which the pair of joist wall surfaces face each other in the extending direction of the joist. and
The pins are inserted through the two fitting-side insertion holes and the two extension-side insertion holes, respectively, and are positioned on both sides of the reinforcement rib, thereby being positioned at the support portion of the extension. It is characterized by

Here, the large pulley may include a reinforcing portion extending along the supporting portion below the supporting portion, and a plurality of connecting plates connecting the supporting portion and the reinforcing portion. Further, the joist may be a square pipe.

According to the connecting fitting of the present invention, since the pin is inserted through the metal fitting side insertion hole of the main body and the large pull side insertion hole formed in the large pull, it is necessary to provide the pin on the joist. Therefore, it is not necessary to take measures such as tying with a binding wire due to manufacturing variations in the position of the pin on the joist. In addition, since it is not necessary to provide pins on the joists, it is possible to solve the problem of poor versatility due to the use of members exclusively for the gantry with the same structure.

Further, in the connecting fitting of the present invention, the main body comprises an upper fitting forming the joist fitting surface and a lower fitting separate from the upper fitting,
The lower fitting has a downward U-shape when viewed in the extending direction of the hoist, and includes a pair of hoisting wall surfaces facing each other with an interval corresponding to the width of the hoist, and the pair of hoisting wall surfaces. It has a hobiki fitting surface consisting of a hobiki mounting surface that connects the wall surface and is placed on the hobiki,
The hoist mounting surface is provided with two fitting-side insertion holes penetrating vertically at intervals in the direction in which the joist extends and in which the pair of hoist wall surfaces face each other. You can

By adopting the aspect having the joist fitting surface, the main body and the joist are less likely to be misaligned, and the connection state between the joist and the joist can be more stabilized.

Adopting a mode in which the main body is composed of the upper metal fitting and the lower metal fitting makes it easy to deal with variations in the outer size of the joists and the large pulleys. For example, when the outer diameter size of the joists changes, only the upper metal fittings need to be changed, and when the outer diameter size of the joist changes, only the lower metal fittings need to be changed.

Further, in the connecting fitting of the present invention, the joist and the joists are made of square pipes having the same outer diameter size,
The upper metal fitting and the lower metal fitting may have the same structure except for the metal fitting-side insertion hole.

By adopting this aspect, the same member can be used for the upper metal fitting and the lower metal fitting only by changing the position of the metal fitting-side insertion hole, and the number of parts can be reduced. Further, in the connecting fitting of the present invention, the main body may have a projection provided on the joist wall surface.

According to the present invention, it is possible to facilitate the installation work, improve the versatility of the joist, and effectively prevent the joist from slipping even if it is applied to an inclined floor surface. A connecting fitting can be provided.

It is a figure which shows the gantry to which the connection metal fitting of this invention is applied. (a) is an enlarged view of a portion A surrounded by a two-dot chain line ellipse in FIG. 1, and (b) is a view of (a) from the right or left side. It is a top view which shows in steps the process of attaching a connection metal fitting with respect to the obi shown in FIG. It is a figure which shows a mode that a joist and a large pull are connected using the connection metal fitting of 2nd Embodiment. It is a figure which shows a mode that a joist and a large pull are connected using the connection metal fitting of 3rd Embodiment. It is a figure which shows a mode that the joist and the large pull are connected using the connection metal fitting of the modification of 3rd Embodiment shown in FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing a gantry 9 to which a connecting fitting 10 of the present invention is applied.

As shown in FIG. 1, a gantry 9 provided at a civil engineering site or the like has an inclined floor surface (slope S) and a horizontal floor surface (horizontal surface L). In addition, the gantry 9 includes a plurality of posts 91 erected at intervals in the left-right direction and the front-rear direction (direction perpendicular to the plane of the paper), horizontal members 92 connecting adjacent posts 91, and predetermined horizontal members 92. It has a brace member 93 connecting them together. A large support 94 is attached to the upper end of the support 91 . Between the adjacent large undercarriages 94, the large pulleys 3 extending in the left-right direction are suspended in a state in which both end portions thereof are supported by the large undercarriages 94. - 特許庁In addition, on the hoiki 3, a predetermined interval (for example, 300 mm to 350 mm interval) is provided in the extending direction (longitudinal direction), and the joist 2 extends in a direction perpendicular to the extending direction of the hoiki 3 (front and back). direction) and are connected by a connecting fitting 10 (see FIG. 2, etc.) of the present invention, which will be described later in detail. The joists 2 are in the form of prisms made of square pipes having an outer diameter of 60 mm square, for example. A floor panel 95 constituting a floor surface is installed on the large pulley 3 and the joist 2. - 特許庁A horizontal member 92, a brace member 93, and a large underpinning 94 are provided in the same manner as in the left-right direction, although the figure showing the columns 91 standing at intervals in the front-rear direction is omitted.

FIG. 2(a) is an enlarged view of a portion A surrounded by a two-dot chain line ellipse in FIG. Moreover, FIG.2(b) is the figure which looked at the same figure (a) from the right side or the left side. In FIG. 2(a), the horizontal direction is the extending direction of the hoiki 3, and in FIG. 2(b), the direction orthogonal to the paper surface is the extending direction of the hoiki 3. Since the joist 2 extends in a direction orthogonal to the ohiki, the lateral direction is the extending direction of the joist 2 in FIG. 2(b). In FIG. 2, the floor panel 95, the large undercarriage 94, and the like shown in FIG. 1 are omitted for the sake of simplification, and the same applies to the following drawings.

In this embodiment, a square pipe having an outer diameter of 60 mm square, for example, is used as the joists 2 . In addition, the large pulley 3 is not particularly limited, but in this embodiment, it has a square tube shape and both ends in the longitudinal direction (left and right direction in FIG. 2(a)) are large pulleys 94 (see FIG. 1). a supporting portion 31 on which the joists 2 are placed via the connecting fittings 10; a reinforcing portion 32 extending along the supporting portion 31 below the supporting portion 31; the supporting portion 31 and the reinforcing portion; 32 is adopted. The supporting portion 31 has a reinforcing rib 311 erected at the central portion in the width direction orthogonal to the extending direction of the large pulley 3 .

As shown in FIG. 2( a ), on the joist 3 , the joist 2 is perpendicular to the extending direction of the joist 3 with a predetermined interval (for example, 300 mm to 350 mm interval) in the extending direction. They are connected by a connecting fitting 10 while extending in the direction. The connecting fitting 10 has a main body 5 and a pin 7 for positioning the main body 5 to the hoist 3. - 特許庁

In FIGS. 2(a) and 2(b), as shown in an enlarged view surrounded by a square with a dashed line, the main body 5 has an upward U-shape when viewed in the extending direction of the joists 2. A pair of joist wall portions 51, 51 facing each other with an interval corresponding to the width of the joist 2 and a joist support portion 52 connecting the pair of joist wall portions 51, 51 and supporting the joist 2 are provided. . The inner surfaces of the pair of joist wall portions 51, 51 respectively constitute a joist wall surface 51a, and the upper surface of the joist support portion 52 constitutes a joist support surface 52a. The pair of joist wall surfaces 51a, 51a and the joist support surface 52a form an upward U-shaped joist fitting surface 50a. That is, the main body 5 has an upward U-shape when viewed in the extending direction of the joist 2, and includes a pair of joist wall surfaces 51a, 51a facing each other with a space corresponding to the width of the joist 2 and a pair of joist wall surfaces 51a, 51a facing each other. It has a joist fitting surface 50a consisting of a joist support surface 52a that connects the wall surfaces 51a, 51a and supports the joist 2. As shown in FIG.

Also, the joist support portion 52 is formed with two fitting-side insertion holes 521, 521 penetrating in the vertical direction with an interval in the extending direction of the joist 2 (horizontal direction in FIG. 2(b)). . In other words, the joist support surface 52a is formed with two fitting-side insertion holes 521, 521 that are vertically penetrated at intervals in the extending direction of the joist 2. As shown in FIG.

3A to 3C are plan views showing step by step the process of attaching the connecting fitting 10 to the large cord 3 shown in FIG.

FIG. 3(a) is a top view of the large pulley 3 before the connecting fitting 10 is attached. On the upper surface of the supporting portion 31 of the large pulley 3, two large puller-side insertion holes 312 are formed at predetermined intervals in the direction in which the large pulley 3 extends (horizontal direction of the paper surface).

First, as shown in FIG. 3(b), the main body 5 is placed on the hoiki 3 so that the two fitting-side insertion holes 521, 521 are aligned with the two hoiki-side insertion holes 312, 312. As shown in FIG. Next, the pin 7 is inserted into the fitting-side insertion hole 521 of the main body 5 and the large-pull-side through hole 312 of the large-pull 3 to obtain the state shown in FIG. 3(c). As a result, the main body 5 is positioned on the hoiki 3, and the attachment of the connecting fitting 10 to the hoiki 3 is completed.

Then, when the joists 2 are fitted into the main body 5, the joists 2 are fitted to the joist fitting surfaces 50a as shown in FIG. As described above, according to the connecting fitting 10 of the present embodiment, the floor joist 2 and the hoist 3 can be connected with a very simple operation. Further, since the pin 7 is inserted through the fitting-side insertion hole 521 of the main body 5 and the hoist-side insertion hole 312 of the hoist 3 (see FIG. 3(a)), the pin 7 can be attached to the joist 2 as in the conventional art. no longer need to be set. As a result, there is no need to take measures such as tying the joist 2 with binding wires due to manufacturing variations in the positions at which the pins are provided. Furthermore, since it is not necessary to provide a pin on the joist 2, it is possible to solve the problem that the joist 2 becomes a member exclusively for the gantry having the same structure and is inferior in versatility.

2(a), a projection 511 is provided on the inner side of the joist wall portion 51, that is, on the joist wall surface 51a, so that the projection 511 is fitted to the joist 2. may be employed to make the more stable.

Next, another embodiment of the connecting fitting 10 of the first embodiment shown in FIGS. 2 and 3 will be described. In other embodiments described below, differences from the first embodiment shown in FIGS. The constituent elements of the names are described with reference numerals that have been used so far, and overlapping descriptions may be omitted.

FIG. 4 is a diagram showing how the joist 2 and the hoist 3 are connected using the connecting fitting 11 of the second embodiment. 4(a) is a diagram showing a state corresponding to FIG. 2(a), and FIG. 4(b) is a diagram showing a state corresponding to FIG. 2(b).

A connection fitting 11 of this embodiment differs from that of the first embodiment in the configuration of the main body 5 . 4(a) and 4(b), as shown in an enlarged view surrounded by a square with a dashed line, the main body 5 of the present embodiment extends from both end portions of the joist support portion 52 in the extending direction of the joist 2. It has a pair of large pull-up wall portions 53, 53 that hang down and face each other with a gap corresponding to the width of the support portion 31 of the pull-up pull 3. As shown in FIG. The inner surfaces of the pair of large pulling wall portions 53, 53 constitute a large pulling wall surface 53b, and the lower surface of the joist support portion 52 forms a large pulling mounting surface 52b. The pair of large pull-out wall surfaces 53b, 53b and the pull-up placement surface 52b constitute the pull-up fitting surface 50b. That is, in addition to the joist fitting surface 50a, the main body 5 of the present embodiment has a downward U-shape when viewed in the extending direction of the hoist 3, and is spaced apart corresponding to the width of the hoist 3. It has a large drawer fitting surface 50b consisting of a pair of large drawer wall surfaces 53b, 53b facing each other and a drawer mounting surface 52b that connects the pair of large drawer wall surfaces 53b, 53b and is placed on the drawer 3. is. In addition, the metal fitting side insertion hole 521 of this embodiment penetrates from the joist support surface 52a to the large pulling mounting surface 52b.

According to the connecting fitting 11 of the present embodiment, since the hoist fitting surface 50b is fitted to the support portion 31 of the hoist 3, the connection state of the floor joist 2 and the hoist 3 can be made more stable. In the present embodiment, the joist 2 and the joist 3 having the same outer diameter size are used as an example, but it is of course possible to use the joist 2 and the joist 3 having different outer diameter sizes.

FIG. 5 is a diagram showing how the joist 2 and the hoist 3 are connected using the connecting fitting 12 of the third embodiment. 5(a) is a diagram showing a state corresponding to FIG. 4(a), and FIG. 5(b) is a diagram showing a state corresponding to FIG. 4(b).

A connecting metal fitting 12 of this embodiment differs from the connecting metal fitting 11 of the second embodiment shown in FIG. 4 in that the main body 5 is composed of an upper metal fitting 5A and a lower metal fitting 5B.

5(a) and 5(b), as shown in an enlarged view surrounded by a square with a dashed line, the main body 5 of this embodiment includes an upper metal fitting 5A forming a joist fitting surface 50a, It comprises a fitting surface 50b and is composed of a lower metal fitting 5B which is separate from the upper metal fitting 5A.

A square pipe having the same outer diameter size (for example, 60 mm square) as that of the floor joist 2 is used for the supporting portion 31 of the hoiki 3 in this embodiment. Therefore, the upper metal fitting 5A and the lower metal fitting 5B have the same structure except for the metal fitting side insertion hole 521. As shown in FIG. That is, the lower metal fitting 5B is a member having the same structure as the upper metal fitting 5A except for the metal fitting-side insertion hole 521. The member is turned upside down and fitted to the support portion 31 of the large pulley 3 while being rotated 90 degrees in plan view. is. In the upper metal fitting 5A, two metal fitting-side insertion holes 521 are formed at intervals in a direction perpendicular to the direction in which the pair of joist wall portions 51, 51 face each other. On the other hand, in the lower metal fitting 5B, two metal fitting-side insertion holes 521 are formed with an interval in the direction in which the pair of large drawing wall portions 53, 53 face each other.

FIG. 6 is a diagram showing how the joist 2 and the hoist 3 are connected using the connecting fitting 13 of the modification of the third embodiment shown in FIG. 6(a) is a diagram showing a state corresponding to FIG. 5(a), and FIG. 6(b) is a diagram showing a state corresponding to FIG. 5(b).

In this modification, square pipes with a large outer diameter (for example, 100 mm square) are used as the joists 2 . That is, the outside diameter size of the joists 2 and the outside diameter size (for example, 60 mm square) of the support portion 31 of the joist 3 are different.

For this reason, in FIG. 6(a), as shown in an enlarged view surrounded by a square with a dashed line, the upper metal fitting 5A' of this modification has a pair of joist wall surfaces corresponding to the outer diameter size of the joist 2. The interval between 51a and 51a is wide (for example, 100 mm).

As shown in FIGS. 5 and 6, the main bodies 5 of the connecting fittings 12 and 13 of the third embodiment are composed of an upper fitting 5A and a lower fitting 5B. For this reason, it becomes easy to deal with variations in the outer size of the joist 2 and the hoist 3 . For example, when a joist 2 having a large outer diameter is used, the upper metal fitting 5A' corresponding thereto may be used as shown in FIG. As shown in FIG. 5, when the joist 2 and the joist 3 have the same outer size, the same member can be used for the upper metal fitting 5A and the lower metal fitting 5B only by changing the position of the metal fitting-side insertion hole 521. can reduce the number of parts.

According to the connecting metal fittings 10, 11, 12, and 13 of the present invention, it is possible to provide connecting metal fittings designed to facilitate the installation work and to improve the versatility of joists.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims. For example, in the above-described embodiment, the ohiki 3 is provided with the rectangular tubular support portion 31, the reinforcing portion 32, and the connecting plate 33, but the reinforcing portion 32 and the connecting plate 33 are provided. It is permissible to adopt a discount that does not include Further, in the above-described embodiment, two metal fitting-side insertion holes 521 are formed in the main body 5, but three or more metal fitting-side insertion holes 521 may be formed. Furthermore, in the above-described embodiment, the aspect of the horizontal floor surface (horizontal surface L) in the gantry 9 shown in FIG. Since the connecting fitting 10 of the present invention has a structure in which the pin 7 is inserted into the large pull-side insertion hole 312 formed in the large pull 3, even if it is applied to the inclined floor surface (slope S) portion, the joists 2 can be effectively prevented.

In addition, even if the constituent elements are included only in the description of each of the embodiments and modifications described above, the constituent elements may be applied to other embodiments and modifications.
In the following, additional notes will be given including what has been explained so far.
(Appendix 1) Other connecting metal fittings are connecting metal fittings that connect a joist and a joist extending in a direction orthogonal to the joist, which constitutes a gantry installed at a site of civil engineering work, etc.
comprising a main body and a pin that positions the main body to the hoist;
The main body has an upward U-shape when viewed in the extending direction of the joist, and connects a pair of joist wall surfaces facing each other with an interval corresponding to the width of the joist and the pair of joist wall surfaces. and a joist fitting surface consisting of a joist support surface for supporting the joist,
The joist support surface is formed with at least two fitting-side insertion holes penetrating in the vertical direction at intervals in the extending direction of the joist,
The pin is positioned in the large pull by being inserted through the fitting-side insertion hole and the large pull-side insertion hole formed in the large pull.
(Supplementary Note 2) In the connecting fitting of Supplementary Note 1, the main body has a downward U-shape when viewed in the extending direction of the wire, and is a pair of opposing with a gap corresponding to the width of the wire. It may have a hoist fitting surface comprising a hoist wall surface and a hoist mounting surface that connects the pair of hoist wall surfaces and is placed on the hoist.
(Supplementary Note 3) In the connecting fitting according to Supplementary Note 2, the main body comprises an upper fitting that constitutes the joist fitting surface, and a lower fitting that constitutes the joist fitting surface and is separate from the upper fitting. It can be anything.
(Appendix 4) In the connection fitting according to Appendix 3, the joist and the joists are made of square pipes having the same outer diameter size,
The upper metal fitting and the lower metal fitting may have the same structure except for the metal fitting-side insertion hole.

10, 11, 12, 13 connecting metal fitting 2 joist 3 joist 31 supporting portion 32 reinforcing portion 33 connecting plate 5 main body 5A upper metal fitting 50a joist fitting surface 51a joist wall surface 52a joist supporting surface 5B lower fitting 50b joist fitting surface 52b Large pulling mounting surface 53b Large pulling wall surface 521 Metal fitting side insertion hole 7 Pin 9 Gantry

Claims (4)

A joist extending in a direction orthogonal to the joist, which is provided with a square tube-shaped support part inclined in the extension direction and constitutes the inclined floor part of the gantry installed at the site of civil engineering work, etc. The support part includes a reinforcing rib that connects the upper wall and the lower wall over the entire length at a central portion in the width direction orthogonal to the extending direction, and a reinforcing rib that connects the upper wall and the lower wall along the width direction on the upper surface It has two large pull side insertion holes formed by
comprising a main body and a pin for positioning the main body to the support of the large pulley;
The main body has an upward U-shape when viewed in the extending direction of the joist, and has a pair of joist wall surfaces facing in the direction in which the joist is inclined with a gap corresponding to the width of the joist, It has a joist fitting surface consisting of a joist support surface that connects the pair of joist wall surfaces and supports the joist,
The joist support surface is formed with two fitting-side insertion holes penetrating vertically at intervals in a direction perpendicular to the direction in which the pair of joist wall surfaces face each other in the extending direction of the joist. and
The pins are inserted through the two fitting-side insertion holes and the two extension-side insertion holes, respectively, and are positioned on both sides of the reinforcement rib, thereby being positioned at the support portion of the extension. A connecting fitting characterized by being The main body comprises an upper metal fitting that constitutes the joist fitting surface and a lower metal fitting that is separate from the upper metal fitting,
The lower fitting has a downward U-shape when viewed in the extending direction of the hoist, and includes a pair of hoisting wall surfaces facing each other with an interval corresponding to the width of the hoist, and the pair of hoisting wall surfaces. It has a hobiki fitting surface consisting of a hobiki mounting surface that connects the wall surface and is placed on the hobiki,
The hoist mounting surface is provided with two fitting-side insertion holes penetrating vertically at intervals in the direction in which the joist extends and in which the pair of hoist wall surfaces face each other. 2. The connecting fitting according to claim 1, characterized in that: The ohiki and the joists are made of square pipes having the same outer diameter size,
3. The connecting fitting according to claim 2, wherein said upper fitting and said lower fitting have the same structure except for said fitting-side insertion hole. The connecting fitting according to any one of claims 1 to 3, wherein the main body has a projection provided on the joist wall surface.

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