JP5882441B2 - Ceiling brace lower mounting bracket - Google Patents

Description

  The present invention relates to a ceiling brace lower mounting bracket for fixing a lower end portion of a ceiling brace to a field edge behind a ceiling.

  Conventionally, for example, a hanging hanger (hanging bracket) is attached to the lower end of a suspension bolt that is suspended from an upper floor slab or a roof slab and suspended from a ceiling base material assembled in a lattice shape. Suspended ceilings are known that are constructed by supporting them through suspension.

  In such a suspended ceiling, in order to improve earthquake resistance, a ceiling brace is provided between the lower end of the suspension bolt and the upper end of another suspension bolt adjacent to the suspension bolt. Yes. In order to attach the lower end portion of the ceiling brace to the ceiling base material, it is welded to the lower end portion of the suspension bolt, welded to a hanger for fixing the ceiling base material (see, for example, Patent Document 1), or screwed to the ceiling base material. (For example, refer to Patent Document 2).

JP 2009-35960 A JP 2008-95310 A

  In the above-described conventional mounting structure, the mounting position of the lower end portion of the ceiling brace is limited, so that the angle of the ceiling brace is limited. As a result, there is a problem in that the stress applied to the ceiling brace is not easily transmitted to the ceiling base material.

  From such a viewpoint, an object of the present invention is to provide a ceiling brace lower mounting bracket that can easily transmit stress applied to the ceiling brace to the ceiling base material.

The invention according to claim 1 for solving the above problem is a ceiling brace lower mounting bracket for fixing the lower end of the ceiling brace to the field edge at the back of the ceiling, straddling a plurality of the field edges. An angle member to be arranged, and a lower end fixing bracket attached to the angle member and connected to a lower end portion of the ceiling brace, and the angle member is placed on the edge so that the mountain faces upward In addition, the ceiling brace lower mounting bracket is fixed to the field edges on both sides via fixing brackets .
According to such a structure, since a connection position can be determined according to the position of the lower end part of a ceiling brace, the stress concerning a ceiling brace can be transmitted to a ceiling base material without difficulty. Further, there is no need to provide a specially shaped mounting bracket according to the positional deviation of the ceiling brace.

The ceiling brace the lower mounting bracket in the present invention, prior Symbol fixing bracket includes a angle member fixing portion for covering the angle member from above, respectively provided at both ends of the angle members fixed portion, a width direction of the field edge What has a field edge fixing | fixed part which covers both side surfaces from an upper side is preferable. Moreover, the said field edge fixing | fixed part is exhibiting the cross-sectional U shape which a lower side opens, and each side surface of the said field edge fixing | fixed part contact | abuts to the both sides | surfaces of a field edge, and the thing screwed is preferable.

  Further, it is preferable that the lower end fixing bracket is formed in a cross shape in cross section and a screw hole is formed in each surface of the cross.

  The ceiling brace lower mounting bracket according to the present invention exhibits an excellent effect that stress applied to the ceiling brace can be transmitted to the ceiling base material without difficulty.

It is the disassembled perspective view which showed the brace attachment metal fitting which concerns on 1st embodiment of this invention. It is the side view which showed the ceiling back structure reinforced using the brace attachment metal fitting which concerns on 1st embodiment of this invention. It is the figure which showed the brace attachment metal fitting which concerns on 1st embodiment of this invention, Comprising: (a) is the side view which showed the 1st member, (b) is a top view. It is the side view which showed the brace attachment metal fitting which concerns on 2nd embodiment of this invention. It is the side view which showed the brace attachment metal fitting which concerns on 3rd embodiment of this invention. It is the perspective view which showed the ceiling brace lower attachment metal fitting. It is the perspective view which showed the lower end fixing bracket of the ceiling brace lower mounting bracket. It is the perspective view which showed the angle material fixing bracket of the ceiling brace lower attachment bracket.

  The first to third embodiments describe the structure of the brace mounting bracket and are reference embodiments. The fourth embodiment describes the structure of the ceiling brace lower mounting bracket and is an embodiment according to the present invention.

(First embodiment)
A brace mounting bracket and a ceiling structure using the same according to a first embodiment of the present invention will be described in detail with reference to the drawings. In the description, the same reference numerals are used for the same elements, and duplicate descriptions are omitted.

  As shown in FIG. 2, a brace mounting bracket 1 according to this embodiment is for attaching a ceiling brace 5 to an upper end portion of a suspension bolt 3 that suspends a ceiling base material 2. The ceiling base material 2 is assembled, for example, in a lattice shape on the back of the ceiling, and is supported by a suspension bolt 3 suspended from the ceiling casing 4. 2 shows a configuration in which the lower end portion of the ceiling brace 5 is directly fixed to the ceiling base material 2, other mounting structures will be described later with reference to FIGS. In the description of the embodiment, the brace mounting bracket 1 is referred to as a “ceiling brace upper mounting bracket” in order to distinguish it from a ceiling brace lower mounting bracket described later.

  The ceiling brace upper mounting bracket 1 is provided at the upper end of the ceiling brace 5. The ceiling brace 5 is composed of, for example, a C-type channel, and a bolt member 6 is provided on the upper end thereof. The bolt member 6 is fixed to the upper end of the ceiling brace 5 via a metal plate 7 bent in a U-shape. The metal plate 7 is disposed so as to cover the upper end portion of the ceiling brace 5, and is fixed to the surface material of the ceiling brace 5 with screws 8. The bolt member 6 extends in the same direction as the ceiling brace 5. The bolt member 6 is fixed to the tip surface of the metal plate 7 via a nut 9. The ceiling brace 5 is not limited to the above-described configuration, and may be formed of other steel materials such as a square pipe, or may be formed of a material other than steel materials. Further, the fixing method of the bolt member 6 to the ceiling brace 5 is not limited to the above configuration, and may be fixed by other methods such as welding.

  As shown in FIG. 1, the ceiling brace upper mounting bracket 1 includes a first member 10 having a U-shaped cross section with one end opened, and a second member 20 detachably mounted on the opening side of the first member 10. And. In a state where the second member 20 is mounted on the first member 10, the first member 10 and the second member 20 are configured to surround the entire circumference of the suspension bolt 3.

  Specifically, the first member 10 includes side plate portions 11a and 11b that face each other and a back plate portion 12 that connects the side plate portions 11a and 11b. The first member 10 is formed by bending a metal plate into a U shape, and the side plate portions 11a and 11b and the back plate portion 12 are integrally formed. The side plate portions 11 a and 11 b constitute “a pair of opposed surfaces that face each other on the opening side of the first member 10” in claim 1. The side plate portions 11 a and 11 b are arranged in parallel to each other and are spaced apart slightly wider than the outer diameter of the suspension bolt 3.

  Insertion holes 13 and 13 into which the second member 20 is inserted are formed in the side plate portions 11a and 11b, respectively. The insertion hole 13 is formed in a rectangle that is slightly larger than the cross-sectional shape of the second member 20, and the second member 20 is inserted from the side portion. The insertion hole 13 is formed with an inclination angle in which the long side of the rectangle is substantially orthogonal to the mounting angle of the ceiling brace 5. One of the pair of insertion holes 13 formed in each of the side plate portions 11a and 11b (the insertion hole 13 of the side plate portion 11a) has a notch portion 14 connected from the inner peripheral edge of the insertion hole 13 to the outer peripheral edge of the side plate portion 11a. Is formed. The notch 14 is formed to have a width that allows the bolt member 6 at the tip of the ceiling brace 5 to pass through. The notch 14 is formed to extend in the extending direction of the ceiling brace 5. In order to correspond to the positional relationship between the second member 20 and the bolt member 6 when the bolt member 6 is screwed into the second member 20, the notch portion 14 has a distance from both ends of the long side of the insertion hole 13. It is formed on the open center side. A notch is not formed in the other insertion hole formed in the side plate portion 11b (see FIG. 3A). In the present embodiment, the cutout portion 14 is formed in one insertion hole 13, but the present invention is not limited to this, and may be formed in both insertion holes 13.

  A screw portion 15 that meshes with the suspension bolt 3 is formed at a contact portion with the suspension bolt 3 inside the back plate portion 12. The screw portion 15 is constituted by an outer peripheral surface of a bolt 16 fixed to the inside of the back plate portion 12. The bolt 16 has the same thread as the suspension bolt 3. The bolt 16 is fixed to the ceiling brace upper mounting bracket 1 by welding. The bolt 16 extends from the upper end of the ceiling brace upper mounting bracket 1 to the height of the lower end of the insertion hole 13. The height and the mounting height of the bolt 16 are not limited to the above configuration. If the bolt 16 is provided at a height at which the bolt member 6 at the tip of the ceiling brace 5 contacts the suspension bolt 3, the length of the bolt 16 or the mounting height may be changed.

  The 2nd member 20 is formed in the rectangular flat plate shape with the metal plate, and is comprised from the side part of the insertion hole 13 of the 1st member 10 so that insertion is possible. The second member 20 has a length longer than the gap between the side plate portions 11 a and 11 b of the first member 10, and is configured to be able to be engaged with each of the pair of insertion holes 13 and 13. The second member 20 is formed with a screw hole 21 whose axial direction is orthogonal to the surface of the second member 20. The screw hole 21 has an inner diameter to which the bolt member 6 at the tip of the ceiling brace 5 can be screwed, and has a dimension shorter than the gap between the side plate portions 11 a and 11 b of the first member 10. The screw hole 21 is disposed so as to be positioned on an extension line of the notch portion 14 in a side view when inserted into the insertion hole 13.

  Next, functions and effects will be described while explaining the procedure for fixing the ceiling brace 5 to the suspension bolt 3 and the fixed state using the ceiling brace upper mounting bracket 1 having the above-described configuration.

  When the ceiling brace 5 is fixed to the suspension bolt 3, first, the bolt member 6 at the tip of the ceiling brace 5 is screwed into the screw hole 21 of the second member 20 and inserted. At this time, the tip of the bolt member 6 is positioned so as not to protrude from the surface of the second member 20 while being positioned in the screw hole 21.

  And the 1st member 10 is moved from the side of the suspension bolt 3, and the suspension bolt 3 is made to enter between the side-plate parts 11a and 11b. The first member 10 at this time is performed at a height at which it is easy to perform a work that can be reached by a worker standing on the scaffold.

  Then, the 2nd member 20 is inserted in the insertion holes 13 and 13 of the 1st member 10 from the side-plate part 11a side in which the notch part 14 is formed. At this time, since the bolt member 6 does not protrude from the surface of the second member 20, the bolt member 6 does not interfere with the inner peripheral edge of the insertion hole 13, and the base end side (ceiling brace 5 side) passes through the notch portion 14. Thus, the bolt member 6 can move between the side plate portions 11a and 11b without interfering with the first member 10. Then, the ceiling brace 5 is rotated, and the tip of the bolt member 6 is slightly protruded from the surface of the second member 20. At this time, the suspension bolt 3 is not yet tightened. As a result, even if the second member 20 is about to come out of the insertion hole 13, the distal end portion of the bolt member 6 is in contact with and locked to the inside of the side plate portion 11 a, thereby obtaining the function of preventing the second member 20 from coming off. It becomes. Here, the suspension bolt 3 is in a state where the entire circumference is surrounded by the first member 10 and the second member 20.

  As described above, by forming the insertion holes 13 and 13 in the first member 10, the second member 20 can be easily inserted into the first member 10 by a simple operation of inserting the second member 20 into the insertion hole 13. Can be installed. Furthermore, since the notch 14 is formed in the insertion hole 13, the bolt member 6 at the tip of the ceiling brace 5 can be screwed into the second member 20 in advance, so that the first member 10 can be mounted. The mounting work can be easily performed.

  Next, the worker holds the lower portion of the ceiling brace 5 and pushes the screw portion 15 in a direction away from the suspension bolt 3, while the tip of the ceiling brace 5 including the bolt member 6 and the ceiling brace upper mounting bracket 1. Is raised along the suspension bolt 3. When the ceiling brace upper mounting bracket 1 rises to a predetermined position at the upper end of the suspension bolt 3, the ceiling brace 5 is rotated and the bolt member 6 is brought into contact with the suspension bolt 3 and pressed. At this time, when the operator pulls the ceiling brace upper mounting bracket 1 toward the front and engages the screw portion 15 with the suspension bolt 3, the ceiling brace upper mounting bracket 1 can maintain a predetermined height. It is easy to do.

  The worker rotates the ceiling brace 5 until the bolt member 6 can press the suspension bolt 3 with sufficient pressure. At this time, since the ceiling brace upper mounting bracket 1 surrounds the entire circumference of the suspension bolt 3 with the first member 10 and the second member 20, the tightening axial force of the bolt member 6 screwed into the screw hole 21 is The second member 20 is smoothly transmitted to the pair of side plate portions 11a and 11b of the first member 10 and dispersed. Therefore, the ceiling brace upper mounting bracket 1 is not easily deformed even when firmly tightened. As described above, the suspension bolt 3 can be clamped by the bolt member 6 and the bolt 16 of the back plate portion 12 with a large fastening axial force, so that the ceiling brace upper mounting bracket 1 and the ceiling brace 5 can be suspended. The fixing strength can be greatly increased.

  Further, since the suspension bolt 3 and the threaded portion 15 of the first member 10 are engaged with each other, the ceiling brace upper mounting bracket 1 can be prevented from moving in the axial direction of the suspension bolt 3. The fixing strength of the brace 5 to the suspension bolt 3 can be further increased.

  Further, since the tightening work can be performed by holding the front side of the ceiling brace 5 and rotating it, it is possible to perform the work without going up to the upper end of the suspension bolt 3, so that the work is easy to perform. Further, the scaffold near the upper end of the suspension bolt 3 can be omitted.

  Furthermore, in this embodiment, since the screw part 15 of the first member 10 is provided by fixing the bolt 16 to the back plate part 12, the screw part 15 can be easily provided by simple processing.

(Second embodiment)
Next, the ceiling brace upper mounting bracket according to the second embodiment will be described with reference to FIG. As shown in FIG. 4, the ceiling brace upper mounting bracket 1 ′ according to the second embodiment is configured such that a bolt 16 ′ that constitutes a screw portion 15 ′ of the first member 10 is curved. Bolt 16 'is curving so that the suspension bolt 3 side may become an outer peripheral surface, and the outer peripheral surface meshes with suspension bolt 3. In addition, since it is the same as that of the ceiling brace upper mounting bracket 1 of 1st embodiment about another component, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  According to the configuration as described above, since the bolt 16 'is curved, even if the ceiling brace upper mounting bracket 1' is inclined within a predetermined range, the screw portion 15 'and the suspension bolt 3 can be engaged with each other. it can. As a result, the range of the mountable angle of the ceiling brace 5 is widened, so that the versatility of the ceiling brace upper mounting bracket 1 'can be enhanced.

  If the curvature radius of the bolt 16 'to be attached is reduced, the ceiling brace 5 can be attached at a wider range of angles.

(Third embodiment)
Next, the ceiling brace upper mounting bracket according to the third embodiment will be described with reference to FIG. In the ceiling brace upper mounting bracket 1 ′ according to the second embodiment, the bolt 16 ′ is curved so that the ceiling brace upper mounting bracket 1 ′ can be tilted. In the ceiling brace upper mounting bracket 1 "according to the embodiment, the insertion hole 13" and the second member 20 "are curved. The insertion hole 13" is curved so that the ceiling brace 5 side is the outer peripheral surface, and is constant It is formed in a circular arc shape with a width. The second member 20 "is curved with a radius of curvature equivalent to the insertion hole 13". The circumferential length of the second member 20 ″ is shorter than the circumferential length of the insertion hole 13 ″, and the second member 20 ″ is configured to be movable along the circumferential direction of the insertion hole 13 ″. Yes. The screw hole 21 of the second member 20 "is formed so that the center of curvature is located on the extension line of the central axis.

  According to the above configuration, the insertion member 13 ″ and the second member 20 ″ are curved, whereby the second member 20 ″ can be moved in the circumferential direction. Thereby, the ceiling brace 5 can be attached. Since the range of angles becomes wider, the versatility of the ceiling brace upper mounting bracket 1 ′ can be enhanced.

  In the second embodiment, the bolt 16 ′ is curved, and in the third embodiment, the insertion hole 13 ″ and the second member 20 ″ are curved. However, the bolt, the insertion hole, and the second member are all curved. It is good also as a structure. In this way, the range of the mountable angle of the ceiling brace can be further widened.

(Fourth embodiment)
Next, the configuration of the ceiling brace lower mounting bracket 50 for fixing the lower end portion of the ceiling brace 5 will be described with reference to FIGS. As shown in FIG. 6, the ceiling base material 2 is arranged in a direction orthogonal to the plurality of field receivers 2a (only one is shown in FIG. 6) arranged in parallel to each other. And a plurality of field edges 2b. The field edge 2b is fixed to the lower part of the field edge receiver 2a. The plurality of field edges 2b are also arranged in parallel to each other.

  The ceiling brace lower mounting bracket 50 includes an angle member 51 disposed over a plurality of parallel field edges 2b, and a lower end fixing bracket 55 attached to the angle member 51. The angle member 51 is disposed so as to be parallel to the field edge receiver 2a. The angle member 51 is placed on the field edge 2b so that the mountain faces upward, and is fixed to the field edge 2b via a fixing bracket 52. The fixture 52 is provided for each crossing field edge 2b.

  As shown in FIGS. 6 and 8, the fixing bracket 52 includes a field edge fixing part 52 a that covers both side surfaces of the field edge 2 b in the width direction from above, and an angle material fixing part 52 b that covers the angle material 51 from above. Yes. The field edge fixing portions 52a are provided at both ends of the angle material fixing portion 52b, respectively. The field edge fixing portion 52a has a U-shaped cross section that opens on the lower side, and a screw hole 53 is formed on the side surface (see FIG. 8). The field edge fixing part 52a is fixed to the field edge 2b by inserting the field edge 2b inside and inserting the screw 54 from the side surface. The angle member fixing portion 52 b has an L-shaped cross section equivalent to the angle member 51. A screw hole 53 (only one is shown) is formed on each surface of the angle member fixing portion 52b (see FIG. 8), and the angle member 51 is inserted into the angle member 51 by being put on top of the angle member 51. 51 is fixed.

  As shown in FIGS. 6 and 7, the lower end fixing bracket 55 is configured by assembling a metal plate into a cross-shaped cross section. The lower end portion of the lower end portion fixing metal 55 is formed in a shape along the surface of the angle member 51, and is fixed to the surface of the angle member 51 by welding. Screw holes 56 are formed on each cross-shaped surface of the lower end fixing bracket 55, and the ceiling brace 5 is fixed by inserting the screws 54 toward the lower end of the ceiling brace 5.

  The ceiling brace lower mounting bracket 50 determines the fixing position to the field edge 2b according to the position of the lower end portion of the ceiling brace 5, and appropriately adjusts the longitudinal position of the angle member 51. According to such a ceiling brace lower mounting bracket 50, since the connection position can be determined according to the position of the lower end portion of the ceiling brace 5, the stress applied to the ceiling brace 5 can be transmitted to the ceiling base material without difficulty. Further, there is no need to provide a specially shaped mounting bracket according to the positional deviation of the ceiling brace 5. Furthermore, since the lower end fixing bracket 55 is formed in a cross-shaped cross section, it is possible to fix a ceiling brace extending from four directions.

  As mentioned above, although the form for implementing this invention was each demonstrated, this invention is not limited to the said embodiment, A design change, such as a material, a shape, and a magnitude | size, is suitably possible in the range which does not deviate from the meaning of this invention. It is. For example, in the said embodiment, although the screw | thread part 15 is formed by fixing the volt | bolt 16 to the backplate part 12, it is not limited to this, For example, the backplate part 12 is cut and processed. A screw part may be formed. If it does in this way, size reduction of the ceiling brace upper attachment metal fitting 1 can be achieved.

1 Ceiling brace upper mounting bracket (brace mounting bracket)
DESCRIPTION OF SYMBOLS 3 Suspension bolt 5 Ceiling brace 6 Bolt member 10 1st member 13 Insertion hole 14 Notch part 15 Screw part 16 Bolt 20 Second member 21 Screw hole 1 'Ceiling brace upper mounting bracket 15' Screw part 16 'Bolt 1 "Ceiling brace Upper mounting bracket 13 "insertion hole 20" Second member 50 Ceiling brace lower mounting bracket 51 Angle material 55 Lower end fixing bracket

Claims (4)

A ceiling brace lower mounting bracket for fixing the lower end of the ceiling brace to the field edge behind the ceiling,
An angle member disposed across the plurality of the field edges, and a lower end fixing bracket attached to the angle member and connected to a lower end portion of the ceiling brace,
The ceiling brace lower mounting bracket , wherein the angle member is mounted on the field edge so that the mountain faces upward, and is fixed to each of the field edges on both sides via a fixing bracket. Before SL fixing bracket includes a angle member fixing portion for covering the angle member from above, respectively provided at both ends of the angle members fixed portion, and a field edge fixing portion covering the both widthwise side surfaces of the field edge from above, the The ceiling brace lower mounting bracket according to claim 1, characterized by comprising: The field edge fixing part has a U-shaped cross section that opens on the lower side,
3. The ceiling brace lower mounting bracket according to claim 2, wherein each side surface of the field edge fixing portion abuts on both side surfaces of the field edge and is screwed. The ceiling brace according to any one of claims 1 to 3, wherein the lower end fixing bracket is formed in a cross shape in cross section, and a screw hole is formed in each surface of the cross. Lower mounting bracket.

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