JP6000868B2 - Long bolt cross connection bracket - Google Patents

Description

  The present invention relates to a long bolt cross-connecting bracket, and more specifically, by connecting a long bolt in a crossed state between a plurality of suspension bolts suspended from a top plate such as a ceiling slab / deck plate. The present invention relates to a long bolt cross-connecting bracket used in a configuration for reinforcing a suspended state.

  A long bolt was passed over one span between two adjacent hanging bolts of a plurality of hanging bolts suspended from a top plate such as a ceiling slab / deck plate. The structure which reinforces the suspension state by a suspension bolt by connecting adjacent suspension bolts with a long bolt is known.

  In the above-described reinforced configuration of the suspended state, various techniques for further increasing the strength of the suspended state by connecting the intersections of two long bolts spanned between one span have been proposed (for example, And Patent Documents 1 to 4).

  In the technique of Patent Document 1, two half-clamping members each holding two long bolts are arranged in such a manner that the open parts of the half-clamping parts face each other and face each other in an intersecting state. The two long bolts are connected in an intersecting state by tightening with a nut.

  The techniques of Patent Documents 2 and 3 are configured to connect the intersections of two long bolts by inserting two long bolts into each of the two sets of recesses formed in the connection fitting.

  The technique of patent document 4 is a structure which connects the cross | intersection part of two long volt | bolts with the connection metal fitting which connected the two insertion part which each penetrates two long lengths in the crossing state.

Japanese Unexamined Patent Publication No. 07-324426 (FIGS. 8 and 9) Japanese Patent No. 4457154 Japanese Patent No. 4741946 JP 2009-215716 A

  The technique of Patent Document 1 has a problem that a long bolt is likely to drop off from a half-clamping part when the tightening of one bolt and nut connecting two half-clamping members is loosened. ing.

  The techniques of Patent Documents 2 and 3 have a problem that the long bolt may fall out of the recess when stress is applied to the long bolt inserted in the recess in the direction opposite to the insertion direction. ing. Furthermore, since the technique of Patent Document 3 is formed of an elastic member that allows distortion, there is a problem in that it is insufficient for further reinforcement in a suspended state.

  The technique of Patent Document 4 has a problem that it is necessary to insert each of the two long bolts from the end portions in advance with respect to the two insertion portions, and the workability at the site is inferior.

  Therefore, an object of the present invention is to provide a long bolt cross-connecting metal fitting that can reliably connect the crossing portions of two crossed long bolts and that has good workability.

  The present invention for solving the above problems has the following configuration.

1. In the long bolt cross-connecting bracket configured to connect the crossing portions of the two long bolts in the crossing state,
A first J-shaped member formed by bending a plate material into a J-shaped cross section to form a long side portion, a short side portion, and a bent portion connecting the long side portion and the short side portion;
And a second J-shaped member formed by bending a plate material into a J-shaped cross section to form a long side portion, a short side portion, and a bent portion connecting the long side portion and the short side portion,
The first J-shaped member and the second J-shaped member are pivotally connected in a state in which the short sides of each J-shape are facing outward and a part of each long-side is laminated. ,
Furthermore, a through-hole through which a bolt can be inserted is formed in each of the short side portion of the first J-shaped member and the long side portion laminated with a space between the short side portion,
And each of the short side part of the 2nd J-shaped member and the long side part which provides a gap with the short side part is provided with a through hole through which a bolt can be inserted,
After one of the two long bolts is hooked and inserted between the long side portion and the short side portion of the first J-shaped member and inside the bent portion, the penetration of the long side portion and the short side portion is performed. It is a structure that prevents the drop of one long bolt that is hooked and inserted by passing the bolt through the hole and tightening the nut,
After the other of the two long bolts is hooked and inserted between the long side portion and the short side portion of the second J-shaped member and inside the bent portion, the penetration of the long side portion and the short side portion is performed. It is a structure that prevents dropping of the other long bolt that is hooked and inserted by penetrating the bolt through the hole and tightening the nut,
A long bolt cross connecting bracket characterized by

2. 2. The long bolt cross-connecting bracket according to 1 above, wherein a bolt rotation preventing means for inserting the bolt through the through hole is provided in the vicinity of the through hole for inserting the bolt or in the vicinity of the through hole.

3. 3. The long bolt cross-connecting metal fitting according to 2 above, wherein the rotation prevention means is provided with a convex portion that contacts the side surface of the bolt head.

4). 3. The long bolt cross-connecting metal fitting according to 2 above, wherein the rotation prevention means is configured to bend so that a part of the short side portion or the long side portion is in contact with a side surface of the bolt head.

5. Lamination of the long side part of the first J-shaped member and the long side part of the second J-shaped member is a configuration in which the inner side surfaces of the J-shaped surfaces are opposed to each other,
5. The long bolt cross-connecting metal fitting according to any one of 1 to 4 above.

6). At least two long bolts are crossed with respect to one span between two adjacent suspension bolts of a plurality of suspension bolts suspended from a top plate such as a ceiling slab / deck plate. Long bolt crossing, characterized in that the crossing part of the two long bolts in the crossing state is connected by using the long bolt cross connecting metal fitting according to any one of the above 1 to 5 Connecting bracket.

7). Long bolts are arranged in an intersecting state with suspension bolts suspended from a top plate such as a ceiling slab / deck plate, and the intersecting portion of the two bolts in the intersecting state is any one of the above 1-5. A long bolt cross-connecting metal fitting that is connected using the long bolt cross-connecting metal metal fitting described in 1.

  According to the first aspect of the present invention, it is possible to reliably connect the crossing portions of the two crossed long bolts, and to provide a long bolt cross-connecting bracket with good workability.

  In particular, after each of the two long bolts is hooked and inserted between the long side portion and the short side portion of each of the first J-shaped member and the second J-shaped member and inside the bent portion, the long side Due to the configuration in which the bolt and the short side portion are inserted through the bolt and tightened with the nut, the long bolt inserted through the hook does not fall off.

  According to the second aspect of the present invention, at the time of the nut screwing operation to the bolt inserted through each of the first J-shaped member and the second J-shaped member through which the two long bolts are hooked and inserted, it is accompanied by the nut screwing. Since the nut can be screwed without causing the bolt to rotate, the workability at the time of installation work on site is improved.

  According to the invention described in claim 3 or 4, the bolt rotation means can be obtained at a low cost with a very simple configuration.

  According to the fifth aspect of the present invention, it is possible to connect the two long bolts at the intersection in a state where there is no gap between them. In addition, when it laminates | stacks so that the outer surfaces of the J-shaped long side part may contact | abut, the space | interval of two long bolts in an intersection part will open only the thickness for two long side parts. Become.

  According to the sixth aspect of the present invention, the intersecting portion of the two long bolts can be reliably connected, so that the suspended state by the suspension bolt can be further reinforced, and the workability at the time of installation work Is good.

  According to the seventh aspect of the present invention, the intersection of the suspension bolt and the long bolt that intersects the suspension bolt can be connected, and the workability during the mounting operation is good.

The schematic perspective view which shows an example of the hanging state using one Example of the long volt | bolt cross connection metal fitting which concerns on this invention Main part enlarged front view of the intersection shown in FIG. 7 side view (front view, rear view, plan view, bottom view, left side view, right side view, AA line sectional view) showing an embodiment of the long bolt cross-connecting bracket according to the present invention. Schematic explanatory drawing showing an example of the assembly order of the long bolt cross-connecting bracket shown in FIG. Schematic explanatory drawing showing an example of the construction sequence of the long bolt cross-connecting bracket shown in FIG.

  Next, the present invention will be described based on examples with reference to the accompanying drawings.

  The long bolt cross-connecting bracket according to the present invention (hereinafter sometimes simply referred to as a cross-connecting bracket) is an adjacent two of a plurality of suspension bolts suspended from a top plate such as a ceiling slab / deck plate. Suspension with a configuration in which a long bolt is bridged between one span that is between two suspension bolts, and adjacent hanging bolts are connected by the spanned long bolt to reinforce the hanging state by the hanging bolt It is used for a bolt reinforcing metal fitting, and is configured to connect the crossing portions of two long bolts that are bridged in a crossing state between spans in one surface direction.

In the embodiment in the suspended state shown in FIG. 1, the plurality of suspension bolts suspended from the top plate (not shown) have four modes indicated by reference numerals 2AB, 2AD, 2BC, and 2CD.
In addition, when there are four suspension bolts 2 as shown in FIG. 1, there are four spans between two adjacent suspension bolts 2 and 2 and indicated by spans A, B, C, and D. And
Specifically, the span between the suspension bolts 2AB and 2AD is shown as span A, the span between the suspension bolts 2AB and 2BC is shown as span B, and between the suspension bolts 2BC and 2CD. An interval between spans is indicated as a span C, and an interval between spans between the suspension bolts 2AD and 2CD is indicated as a span D.
Further, two long bolts that are crossed between two span bolts 2 and 2 adjacent to each other are indicated by reference numeral 3, more specifically, between the suspension bolts 2AB and 2AD. The two long bolts spanned between the span A are denoted by reference numerals 3A and 3B.

  In the embodiment shown in FIG. 1, for each of the four suspension bolts 2AB, 2AD, 2BC, and 2CD, a total of eight suspension bolts 9 are attached and fixed to the upper portion and the lower portion thereof. A suspension bolt connecting bracket 9 is attached, and a total of eight long bolts 3 are placed over four spans A, B, C, and D, two each. Each of the two long bolts 3 spanned across each of the four spans A, B, C, and D is configured such that the crossing portion is connected between the spans by the cross connector 1 of the present invention. It has become. As shown in FIG. 1, the suspension bolt connecting bracket 9 has a configuration in which the suspension bolt 2 is sandwiched and fixed by two L-shaped plate members in a stacked state, and the end of the long bolt 3 is attached and fixed. In addition to the above, a brace and brace brace fitting having a publicly known configuration can be used without any particular limitation.

  With the above configuration, the suspension state can be reinforced by the four suspension bolts 2AB, 2AD, 2BC, and 2CD. With the four suspension bolts 2AB, 2AD, 2BC, and 2CD, the suspension state of which is reinforced, for example, it is possible to reliably suspend the equipment AC such as an air conditioner in a stable state.

Next, the detail of the cross-connecting metal fitting 1 is demonstrated based on FIGS.
2, the long bolt 3A and the long bolt 3B spanned over the span A between the suspension bolt 2AB and the suspension bolt 2AD in the suspended state shown in FIG. It is based on the cross-connecting metal fitting 1 having a configuration for connecting the crossing portions. 5 is based on the connecting metal fitting 1 that is mounted and fixed at the same position as in FIG.

The cross-connecting metal fitting 1 of the present invention is
A first J-shaped member 4 formed by bending a plate material into a J-shaped cross section to form a long side portion 4A, a short side portion 4B, and a bent portion 4C connecting the long side portion 4A and the short side portion 4B. When,
A second J-shaped member 5 formed by bending a plate material into a J-shaped cross section to form a long side portion 5A, a short side portion 5B, and a bent portion 5C connecting the long side portion 5A and the short side portion 5B. And having
In a state where the first J-shaped member 4 and the second J-shaped member 5 have the short sides 4B and 5B of each J-shaped outward and a part of each of the long sides 4A and 4B is laminated. It is pivotally connected,
Further, through holes 41A and 41B through which the bolts 7A can be inserted are formed in the short side portion 4B of the first J-shaped member 4 and the long side portions 4A which are stacked with a space from the short side portion 4B. And
In addition, through holes 51A and 51B through which the bolts 7B can be inserted are formed in the short side portion 5B of the second J-shaped member 5 and the long side portions 5A which are stacked at intervals with the short side portion 5B. Has been
One of the two long bolts 3 (3A in this embodiment) is hooked and inserted between the long side portion 4A and the short side portion 4B of the first J-shaped member 4 and inside the bent portion 4C. After (see (2) in FIG. 5), a bolt 7A is inserted through the through holes 41A and 41B of the long side portion 4A and the short side portion 4B (see (5) in FIG. 5). It is a structure that prevents one long bolt 3A that is hooked and inserted by tightening the nut 8A, and
The other of the two long bolts 3 (3B in this embodiment) is hooked and inserted between the long side portion 5A and the short side portion 5B of the second J-shaped member 5 and inside the bent portion 5C. After (see (4) of FIG. 5), the bolt 7B is inserted through the through holes 51A and 51B of the long side portion 5A and the short side portion 5B (see (5) of FIG. 5). The other long bolt 3B that is hooked and inserted by tightening the nut 8B (see (6) in FIG. 5) is configured to prevent the other long bolt 3B from dropping off.
Is a specific configuration.

  The cross-connecting metal fitting 1 of the present invention having the above-described configuration includes two long bolts 3A and 3B, the long side portions 4A and 5A and the short side portions of the first J-shaped member 4 and the second J-shaped member 5, respectively. 4B and 5B, and hooked and inserted inside the bent portions 4C and 5C, then the long sides 4A and 5A and the short sides 4B and 5B are inserted through the bolts 7A and 7B and nuts 8A and 8B. Due to the tightening configuration, the long bolts 3A and 3B that are hooked and inserted do not fall off. Therefore, since the intersection of the two long bolts 3A and 3B can be reliably connected, the suspended state by the suspension bolt 2 can be further reinforced. Moreover, the workability during the mounting work is good.

  Moreover, the cross-connecting metal fitting 1 of the present invention has a configuration in which the first J-shaped member 4 and the second J-shaped member 5 are connected so as to be rotatable in a state in which a part of the long side portions 4A and 4B are stacked. Even if the crossing portions of the long bolts 3A and 3B have various crossing angles, it is possible to cope with them. In the present embodiment, the rotation connecting portion 6 that connects the first J-shaped member 4 and the second J-shaped member 5 includes a through hole 42 formed in the long side portion 4A and a through hole 52 formed in the long side portion 5A. However, the present invention is not limited to such a configuration, and a configuration using bolts and nuts can also be used.

  Furthermore, as shown in the present embodiment, the cross-connecting metal fitting 1 of the present invention is preferably provided with rotation prevention means 43 and 53 for the bolts 7A and 7B inserted into the through holes 41B and 51A for inserting bolts. . According to such a configuration, the nuts 8A and 8B are screwed into the bolts 7A and 7B inserted into the first J-shaped member 4 and the second J-shaped member 5 through which the two long bolts 3A and 3B are hooked. Sometimes, the nuts 8A and 8B can be screwed together without causing the rotation of the bolts 7A and 7B due to the screwing of the nuts 8A and 8B, so that the workability at the time of mounting work on site is improved.

  As the bolt rotation means 43 and 53, a publicly known configuration can be adopted without any particular limitation as a bolt rotation prevention means of this type of support fitting. In this embodiment, the long side portion 5A of the second J-shaped member 5 is provided with a convex portion that contacts the side surface of the bolt head, or a part of the short side portion 4A of the first J-shaped member 4 is provided on the side surface of the bolt head. Although the structure bent so that it may contact | abut is taken, this invention is not limited to these aspects, and it forms so that a part of long side part 5A of the 2nd J-shaped member 5 may contact | abut to the side surface of a bolt head. Or the convex part which contact | abuts to the short side part 4B of the 1st J-shaped member 4 to the side surface of a bolt head can also be made.

  In the present embodiment, since the first J-shaped member 4 is configured to insert the bolt 7A from the short side 4B side, the bolt rotation prevention means 43 is provided on the short side 4B. When the bolt 7A is inserted through the bolt, the bolt rotation prevention means is formed on the long side portion 4A side. Similarly, in the present embodiment, the second J-shaped member 5 is configured such that the bolt 7B is communicated from the long side portion 5A side, so that the bolt rotation prevention means 53 is provided in the long side portion 5A. When the bolt 7B is inserted from the 5B side, the bolt rotation prevention means is formed on the short side portion 5B.

  Furthermore, as shown in the present embodiment, the cross-connecting metal fitting 1 of the present invention is formed by stacking the long side portion 4A of the first J-shaped member 4 and the long side portion 5A of the second J-shaped member 5 within the J-shape. It is preferable that the side surfaces are laminated so that the side surfaces face each other. According to such a configuration, the connection in the state where the distance between the two long bolts 3A and 3B at the intersecting portion is eliminated, that is, the state where the two long bolts 3A and 3B are in contact with each other at the intersecting portion. It becomes possible. In addition, when it laminates | stacks so that the outer surfaces of J-shaped long side part 4A * 5A may contact | abut, two long volt | bolts in a cross | intersection part by the thickness for two sheets of long side part 4A * 5A Although the space | interval of 3A * 3B will open, two long volt | bolt 3A * 3B can be connected reliably in a cross | intersection part.

  As mentioned above, although the long volt | bolt cross connection metal fitting of this invention was demonstrated based on the Example, this invention is not limited to the said Example, For example, the following structures can be taken within the scope of the present invention. .

  In the above-described embodiment shown in FIG. 1, the configuration in which the intersecting portions of the two long bolts that are bridged between the two span bolts in a crossed state are connected is described. It can also be used for the structure which connects the crossing part of a suspension bolt and a long volt | bolt instead of connection of long bolts. That is, a configuration using the long bolt cross-connecting metal fitting 1 instead of the suspension bolt connecting metal fitting 9 shown in FIG. 1 is also within the scope of the present invention.

  In addition, the long bolt cross-connecting bracket of the present invention has a configuration used for the crossing portion of the two long bolts between one span in the above embodiment, a configuration used for the crossing portion of the suspension bolt and the long bolt, It can be used in a configuration in which the intersection of two long bolts is simply connected.

  Further, in the present invention, the “long bolt” and the “suspending bolt” are not limited to all screw bolts, but are bolts or round bars in which a screw is cut at a part of an end or the like, round bars without a screw part, Including long rods such as other hanging rods and diagonal reinforcement rods.

DESCRIPTION OF SYMBOLS 1 Long bolt crossing metal fitting 2 Suspension bolt 3 Long bolt 4 1st J-shaped member 4A Long side part 4B Short side part 4C Bending part 41A Through-hole (for bolt insertion)
41B Through hole (for bolt insertion)
42 Through-hole (for insertion of rotating connection)
43 Bolt rotation prevention means 5 2nd J-shaped member 5A Long side portion 5B Short side portion 5C Bent portion 51A Through hole (for bolt insertion)
51B Through hole (for bolt insertion)
52 Through hole (for turning connection part insertion)
53 Bolt rotation prevention means 6 Rotating connection 7A Bolt 7B Bolt 8A Nut 8B Nut 9 Suspension bolt coupling bracket AC Air conditioner equipment

Claims (7)

In the long bolt cross-connecting bracket configured to connect the crossing portions of the two long bolts in the crossing state,
A first J-shaped member formed by bending a plate material into a J-shaped cross section to form a long side portion, a short side portion, and a bent portion connecting the long side portion and the short side portion;
And a second J-shaped member formed by bending a plate material into a J-shaped cross section to form a long side portion, a short side portion, and a bent portion connecting the long side portion and the short side portion,
The first J-shaped member and the second J-shaped member are pivotally connected in a state in which the short sides of each J-shape are facing outward and a part of each long-side is laminated. ,
Furthermore, a through-hole through which a bolt can be inserted is formed in each of the short side portion of the first J-shaped member and the long side portion laminated with a space between the short side portion,
And each of the short side part of the 2nd J-shaped member and the long side part which provides a gap with the short side part is provided with a through hole through which a bolt can be inserted,
After one of the two long bolts is hooked and inserted between the long side portion and the short side portion of the first J-shaped member and inside the bent portion, the penetration of the long side portion and the short side portion is performed. It is a structure that prevents the drop of one long bolt that is hooked and inserted by passing the bolt through the hole and tightening the nut,
After the other of the two long bolts is hooked and inserted between the long side portion and the short side portion of the second J-shaped member and inside the bent portion, the penetration of the long side portion and the short side portion is performed. It is a structure that prevents dropping of the other long bolt that is hooked and inserted by penetrating the bolt through the hole and tightening the nut,
A long bolt cross connecting bracket characterized by 2. The long bolt cross-connecting bracket according to claim 1, wherein the bolt insertion through hole or in the vicinity of the through hole is provided with a rotation preventing means for a bolt inserted into the through hole. . The long bolt cross-connecting bracket according to claim 2, wherein the rotation prevention means is provided with a convex portion that abuts against a side surface of the bolt head. The long bolt cross-connecting bracket according to claim 2, wherein the rotation preventing means is configured to bend so that the short side portion or a part of the long side portion is in contact with a side surface of the bolt head. . Lamination of the long side part of the first J-shaped member and the long side part of the second J-shaped member is a configuration in which the inner side surfaces of the J-shaped surfaces are opposed to each other,
The long bolt cross-connecting metal fitting according to any one of claims 1 to 4. At least two long bolts are crossed with respect to one span between two adjacent suspension bolts of a plurality of suspension bolts suspended from a top plate such as a ceiling slab / deck plate. A long bolt characterized in that the crossing portion of the two long bolts in the crossing state is connected using the long bolt cross-connecting bracket according to any one of claims 1 to 5. Cross connecting bracket. A long bolt is arranged in an intersecting state with a suspension bolt suspended from a top plate such as a ceiling slab / deck plate, and the intersecting portion of the two bolts in the intersecting state is any one of claims 1 to 5. A long bolt cross-connecting bracket, wherein the long bolt cross-connecting bracket is connected using the long bolt cross-connecting bracket.

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