JP6378535B2 - Anti-vibration hanging bracket - Google Patents

Description

  The present invention relates to an anti-vibration hanging bracket that supports a field edge receiver for supporting, for example, a field edge or a ceiling finishing material with respect to a ceiling slab.

  A hanging hanger that supports a supported body such as a field rim with respect to a support body such as a ceiling slab is known as a prior art (see, for example, Patent Document 1).

  An example of such a hanging hanger is shown in FIG. The hanging hanger 100 includes a pair of upper and lower horizontal plates 210 in which through holes for inserting suspension bolts 300 respectively connected to a supporting body and a supported body are formed, and both the horizontal plates 210 extending in the vertical direction. , 210 and a pair of side plates 220, 220 are integrally formed by bending a metal plate and are provided with a vertically elongated rectangular frame-shaped housing 200, and the upper horizontal plate 210 has suspension bolts 300 with nuts 400, 400. On the other hand, the suspension bolt 300 is attached to the lower horizontal plate 210 by the nuts 400 and 400 via the elastic rubber 500.

JP 2013-163900 A

  By the way, when a hanging hanger is used for a ceiling structure, a field edge receiver is supported by a plurality of suspension hangers, and a ceiling finishing material is supported by a field edge attached to the field edge receiver. When such a ceiling structure is applied to a ceiling in a large space, the load acting on each hanging hanger is relatively large. When an earthquake occurs in such a large ceiling structure, the field edge or ceiling finishing material is displaced in the horizontal direction and collides with the wall, and the impact acts on the hanging hanger to deform the hanging hanger. Edges and ceiling finishing materials may fall. In order to prevent such falling of the field edge or ceiling finishing material, it is necessary to suppress the horizontal deformation of the hanging hanger.

  However, when the suspension hanger 100 shown in FIG. 12A is used for a ceiling structure in a large space, if a horizontal force acts on the suspension hanger 100 as the ceiling plate moves in the horizontal direction due to an earthquake, the housing 200 is as described above. Has a rectangular frame shape that is vertically long, and as shown in FIG. 12 (b), there is a possibility that the edge, ceiling finishing material, etc. may fall due to deformation in the horizontal direction.

  The present invention has been made in view of such a point, and an object of the present invention is to prevent horizontal deformation of a vibration-proof hanger that is attached to a suspension bolt and supports a supported body.

  In order to achieve the above-mentioned object, the present invention improves the mountability of the vibration-proof suspension metal fitting by surrounding the suspension hanger housing with a reinforcing member into a box shape and making the reinforcing member movable. It is.

  Specifically, the present invention is directed to a vibration-proof hanging bracket that is attached to a suspension bolt that extends from a support and supports the supported body, and has taken the following solution.

That is, the first invention comprises a suspension hanger attached to the suspension bolt and supporting a supported body, and a reinforcing member attached to the suspension hanger and reinforcing the suspension hanger. A through hole for inserting the suspension bolt is formed in the upper portion, and a housing having a support portion for supporting the supported body is formed in the lower portion, and the suspension bolt has a vibration isolating member in the housing. An open portion for inserting a tool for fixing the nut from the side of the housing is formed in the middle portion, and the housing includes a horizontal plate in which the through hole is formed. A pair of left and right side plates extending downward from the horizontal plate and having the support portion formed at the lower end thereof, and the vibration isolating member is disposed at an upper portion between the side plates, and the open Is constituted by a notch which opens forward is formed in the respective side plates, the reinforcing member has a open position for opening the opening portion, surrounds the upper and middle portion of the housing from the side the It is configured to be movable between a closed position that reinforces the housing and closes the open portion, and is arranged on the outer side in the left-right direction of the both side plates, and vertically on the side plate on the inner side in the left-right direction. A pair of side plates that are pivotably attached to each other, and a connecting plate that connects the two side plates, and in the open position, the both side plates are positioned above the middle of the side plate. While the connecting plate portion is positioned above the horizontal plate, the both side plate portions are moved to the closed position by rotating downward from the open position, so that the both side plate portions are in the left-right direction of the upper and middle portions of the both side plates. If it is located outside The connecting plate portion, characterized in that located in front of the side plates.

  According to the first invention, in a state where the reinforcing member is in the closed position, the reinforcing member surrounds the side of the housing upper portion where the vibration isolating member is disposed and the middle portion of the housing where the open portion is formed. The housing is reinforced. Therefore, even if a horizontal force is applied to the housing, the horizontal deformation of the housing can be suppressed.

  By the way, if the upper part and the middle part of the housing are box-shaped as described above, it is impossible to insert a nut fixing tool when the vibration-proof hanging bracket is attached to the suspension bolt.

  Therefore, according to the first invention, the reinforcing member can be moved between an open position where the open portion is opened and a closed position where the upper portion of the housing and the middle portion are surrounded from the side and the open portion is closed. It was configured as follows. As a result, when attaching the vibration-proof suspension bracket to the suspension bolt, first, the reinforcement member is moved to the open position and the open portion is opened, the suspension bolt is inserted into the through hole, and the vibration isolation member and the nut are attached. It is attached to this suspension bolt, and the tool is inserted from the open part to fix the nut. Next, the support body is supported by the support portion. And a reinforcement member is moved from an open position to a closed position, and the upper part and middle part of a housing are made into a box shape. As described above, by configuring the reinforcing member so as to be movable between the open position and the closed position, it is easy to attach the vibration-proof suspension bracket to the suspension bolt.

  According to the first aspect of the present invention, when attaching the vibration-proof suspension bracket to the suspension bolt and supporting the supported body on the vibration-proof suspension bracket, first, the suspension bolt is inserted into the through hole of the housing and the vibration isolation member is attached. Then, the reinforcing member is flipped up and moved to the open position. Thereby, since the opening part which consists of a notch part is open | released, a tool can be inserted from the side of a housing. In this state, a nut and a nut are attached to the suspension bolt, and the nut is fixed with a tool. Next, the supported body is supported by the support portion at the lower part of the housing. Finally, the reinforcing member is lowered and moved to the closed position, and the upper and middle parts of the vibration-proof hanging bracket are box-shaped. In this way, by simply rotating the reinforcing member in the vertical direction, the open part is secured to improve the mountability of the anti-vibration hanging bracket and the anti-vibration hanging bracket is box-shaped to deform the housing in the horizontal direction. Can be suppressed.

  According to a second invention, in the first invention, the supporting member supports the supported body and the reinforcing member and the housing are fixed to the supported body in a state where the reinforcing member is in the closed position. It is characterized by being.

  According to the second aspect, the reinforcing member and the housing are fixed to the supported body, so that the vibration-proof hanging bracket is rigidly coupled to the supported body. Therefore, it becomes possible to suppress the horizontal relative displacement of the supported body with respect to the vibration-proof hanging metal fitting, and it is possible to more reliably suppress the deformation of the housing of the hanging hanger in the horizontal direction.

  According to a third invention, in the first or second invention, the reinforcing member is fixed to the housing in the closed position.

According to the third invention, since the reinforcing member and the housing are integrated, the housing can be firmly reinforced by the reinforcing member .

According to a fourth invention, in any one of the first to third inventions, a rib is formed on the side plate portion.

According to the fourth invention, since the rib is formed on the side plate portion of the reinforcing member to enhance the rigidity, it is possible to more reliably prevent the horizontal deformation of the housing by the side plate portion.

According to a fifth invention, in any one of the first to fourth inventions, the connecting plate portion is formed with a notch through which the suspension bolt can be inserted in a state where the reinforcing member is in the open position. It is characterized by being.

According to the fifth invention, since the suspension bolt enters the notch formed in the connecting plate portion when the reinforcement member is rotated upward, the suspension bolt does not interfere with the reinforcement member, and the reinforcement member is moved upward. Can be rotated. Therefore, since the opening portion can be secured more widely, the nut can be fixed more easily.

  As described above, according to the present invention, it is possible to prevent horizontal deformation of the vibration-proof hanging bracket that is attached to the suspension bolt and supports the supported body, and to facilitate the work of attaching the vibration-proof suspension bracket to the suspension bolt. it can.

It is a figure which shows a part of ceiling structure where the vibration proof hanging metal fitting which concerns on embodiment of this invention was used. It is an enlarged view which shows the periphery of the vibration proof suspension metal fitting of FIG. It is a rear view of the vibration proof suspension metal fitting in the state attached to the suspension bolt and supporting the field edge receiver. It is a top view of a vibration proof hanging metal fitting in the state where it was attached to a suspension bolt and supported a field edge receiver. It is a side view of the vibration proof hanging metal fitting in the state attached to the suspension bolt and supporting the field edge receiver. It is a figure which shows the housing of a vibration proof suspension metal fitting, Comprising: (a) is a front view, (b) is a rear view, (c) is a top view, (d) is a bottom view, e) is a side view. It is a figure which shows the suspension type vibration proof rubber of a vibration proof hanging metal fitting, Comprising: (a) is a top view, (b) is a side view. It is a figure which shows the reinforcement metal fitting of a vibration proof hanging metal fitting, Comprising: (a) is a front view, (b) is a rear view, (c) is a top view, (d) is a side view. It is a side view of an anti-vibration suspension metal fitting in a state in which a reinforcing bolt is moved to an open position and a suspension bolt is attached and a field edge receiver is attached to the anti-vibration suspension fitting. It is a side view of the vibration proof hanging metal fitting in the state which moved the reinforcement metal fitting to the closed position. It is a side view of a vibration proof hanging metal fitting in the state where a housing and a reinforcing metal fitting are screwed to a field edge receiver. It is a front view which shows the conventional hanging hanger, Comprising: (a) is a figure which shows a stationary state, (b) is a figure which shows the state to which the horizontal force acted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the following description of preferable embodiment is only an illustration essentially, and is not intending restrict | limiting this invention, its application thing, or its use.

  FIG. 1 is a view showing a part of a ceiling structure in which a vibration-proof hanging bracket 1 according to this embodiment is used. This ceiling structure is applied, for example, to a ceiling in a relatively large space such as a gymnasium. A suspension bolt 3 is suspended from a ceiling slab (support) (not shown), and the ceiling base material 5 is suspended by the suspension bolt 3. A ceiling finishing material 7 constituting a ceiling surface is attached to the ceiling base material 5. Further, a brace material 9 is slanted between the ceiling slab and the ceiling base material 5. As described above, since the ceiling structure is applied to a ceiling in a relatively large space, the ceiling base material 5 and the ceiling finishing material 7 have a relatively large weight.

  The suspension bolt 3 is a rod-shaped metal member that extends in the vertical direction and has an external thread formed on the outer peripheral surface thereof. The suspension bolts 3 are spaced apart from each other in the horizontal direction, and the upper end of the suspension bolt 3 is fixed to a not-shown joint fitting embedded in the ceiling slab, while the ceiling base material 5 is disposed at the lower end. It is fixed. As a result, the ceiling base material 5 is suspended and supported by the suspension bolt 3 with respect to the ceiling slab.

  The ceiling base material 5 is a metal member that is disposed at a position spaced downward from the ceiling slab and holds the ceiling finishing material 7. As shown in FIG. 1, the ceiling base material 5 includes a field edge receiver 11 (supported body), and a field edge disposed below the field edge receiver 11 so as to intersect (orthogonally) the field edge receiver 11. 13. In this embodiment, a plurality of the field edge receivers 11, 11,... And a plurality of the field edges 13, 13,. A ceiling structure frame is formed.

  The plurality of field edge receivers 11, 11,... Are fixed to the lower end portion of the suspension bolt 3 via the anti-vibration suspension bracket 1, and are arranged in parallel with a space between each other. Each of the field edge receivers 11 is a long member that is suspended and supported by the suspension bolt 3, and is configured by a C-shaped channel having a U-shaped cross section.

  The plurality of field edges 13, 13,... Each of the field edges 13 is a long member to which the ceiling finishing material 7 is attached, and is configured by a C-shaped channel having a U-shaped cross section.

  The ceiling finishing material 7 is a member having a rectangular plate shape in plan view. The ceiling finishing material 7 is fixed to the lower surface of the field edge 13 via a mounting bracket (not shown). A screw or the like may be used as a method of fixing the ceiling finishing material 7 to the field edge 13.

  The brace material 9 is formed of a C-shaped channel having a U-shaped cross section, and is arranged in a direction intersecting (orthogonal) with the field edge receiver 11. A pair of adjacent brace members 9, 9 are inclined with respect to a horizontal plane, and are bridged in a V shape between the ceiling slab and the ceiling finishing material 7. In other words, the pair of brace members 9, 9 are disposed so as to be separated from the ceiling finishing material 7 toward the ceiling slab. The upper end portion of the brace material 9 is fixed to the ceiling slab or a suspension bolt 3 (not shown) adjacent to the suspension bolt 3 shown in FIG. 1 or the like via a joining fitting (not shown), and the lower end portion is connected to the ceiling slab. It is fixed to a reinforcing member 16 composed of a C-shaped channel disposed horizontally between the ceiling base material 5. In addition, the angle which the said brace material 9 and the horizontal surface make is set suitably. As described above, the brace members 9 and 9 are bridged in a V shape, so that the ceiling structural frame composed of the field edge receiver 11 and the field edge 13, the suspension bolt 3, and the ceiling finishing material are formed. 7 can be suppressed. Furthermore, the vibration of these members in the horizontal direction is more reliably suppressed by the vibration proof hanging bracket 1.

  Next, a specific configuration of the vibration-proof hanging bracket 1 will be described with reference to FIGS. 1 to 5. In the following, the left side and right side in FIG. 1 are referred to as “left side” and “right side”, respectively, and the front side and back side in FIG. 1 are referred to as “front side” and “rear side”, respectively. FIG. 2 is an enlarged view showing the periphery of the vibration proof suspension metal fitting of FIG. 1, and FIGS. 3 to 5 are diagrams showing the vibration proof in a state where they are attached to the suspension bolt 3 and support the field edge receiver 11, respectively. It is the rear view, top view, and side view of the hanging metal fitting 1.

  The anti-vibration suspension bracket 1 includes a suspension hanger 17 that is attached to the lower end portion of the suspension bolt 3 and supports the field receiver 11, and a reinforcement bracket 19 that is attached to the suspension hanger 17 and reinforces the suspension hanger 17. (Reinforcing member). As described above, since the ceiling base material 5 and the ceiling finishing material 7 have a relatively large weight, a relatively large suspension load is applied to the suspension hangers 17.

  The suspension hanger 17 includes a metal housing 21 having a through hole 21a through which the suspension bolt 3 is inserted, and a substantially cylindrical shape that is disposed inside the housing 21 and through which the suspension bolt 3 passes vertically. And a rectangular plate-shaped vibration isolating rubber 25 which is disposed on the housing 21 and through which the suspension bolt 3 penetrates in the vertical direction.

  6A and 6B are views showing the housing 21, wherein FIG. 6A is a front view, FIG. 6B is a rear view, FIG. 6C is a plan view, FIG. 6D is a bottom view, and FIG. . The housing 21 has a rectangular horizontal plate 27 elongated in the front-rear direction in which the through-hole 21a is formed in the center, and a pair of side plates 29, 29 having the same shape extending downward from the left and right ends of the horizontal plate 27, have. As shown in FIG. 1, the plate-like vibration isolating rubber 25 is disposed on the horizontal plate 27, and the horizontal mounting plate 28 having an L-shaped cross-section that is fixed to the horizontal plate 27 and the reinforcing member 16 is horizontal. A nut 31 is provided which is sandwiched by the plate portion and is screwed onto the suspension bolt 3 so as to sandwich the washer 30 on the horizontal plate portion.

  Each of the side plates 29 has a substantially U-shape in which a substantially rectangular notch 33 (notch) that opens forward is formed in a middle part in the vertical direction. At the rear end of each side plate 29 is formed a rectangular plate-like flange 35 that is elongated in the vertical direction and projects outward in the horizontal direction. The flanges 35 increase the rigidity of the side plates 29 and suppress lateral deformation.

  The upper part of each side plate 29 (hereinafter referred to as the side plate upper part 37) has a rectangular shape having the same front-rear width as the horizontal plate 27, and a rectangular notch 37a that opens downward is provided at the center in the front-rear direction. Is formed. A protrusion 61b of a plate-shaped metal fitting 61, which will be described later, of the suspended vibration-proof rubber 23 is inserted into the notch 37a. Further, as shown in FIG. 6 (e), a shaft hole 41 through which a laterally extending shaft 39 that pivotally supports the reinforcing metal fitting 19 is inserted is formed at the rear end of the upper end portion of the side plate upper portion 37.

  Further, a thin plate portion 43 extends downward from the lower end rear end portion of the side plate upper portion 37. The thin plate portion 43 is narrower in the front-rear width than the side plate upper portion 37 (for example, the front-rear width is about 1/3 of the side plate upper portion 37), and has a rectangular plate shape elongated in the vertical direction. The thin plate portion 43 is provided in the middle portion of the side plate 29 so as to correspond to the cutout portion 33. In this way, the notch 33 is formed in the middle of the both side plates 29, 29 to form the opening 45, so that the nut to be screwed onto the suspension bolt 3 below the suspension vibration isolating rubber 23. A tool used for fixing 47 can be inserted from the side of the housing 21.

  At the lower end of the thin plate portion 43, a rectangular plate having a front-rear width larger than the thin plate portion 43 and a smaller front-rear width than the side plate upper portion 37 (for example, the front-rear width is about ½ of the side plate upper portion 37) A side plate lower portion 49 (support portion) is provided. A slit 51 is formed at the center in the front-rear direction of the side plate stock 49 so as to open upward and linearly extend in the vertical direction. The upper flange of the field receiver 11 formed of a C-shaped channel is formed in the slit 51. 11b is inserted. Thereby, the field receiver 11 is supported by the housing 21. Further, as shown in FIGS. 6A and 6B, a square plate-like flange 53 projecting outward in the left-right direction is formed in the lower half portion of the front end of the side plate lower portion 49. As shown in FIGS. A screw hole 53a through which a screw 55 for fixing the flange 53 to the web 11a of the field edge receiver 11 is inserted is formed at the center of the flange 53. As described above, since the flange 53 protrudes outward in the left-right direction from the side plate lower portion 49, it is possible to avoid a tool used for screwing the flange 53 from interfering with the side plate 29.

  7A and 7B are views showing the suspension-type vibration isolating rubber 23, wherein FIG. 7A is a plan view and FIG. 7B is a side view. The suspension vibration isolating rubber 23 has an insertion hole 23a having a smaller diameter than the through hole 21a of the housing 21 in the vertical direction, and a cylindrical rubber main body 57 disposed inside the housing 21. A rubber seat 59 that protrudes upward from the center of the upper surface of the rubber body 57 and engages with the horizontal plate 27 of the housing 21; and a plate-shaped metal fitting 61 that is integrally formed on the lower surface of the rubber body 57. doing. The suspension bolt 3 is attached to the housing 21 such that the rubber body 57 is sandwiched between the nut 47 and the horizontal plate 27 of the housing 21 that pass through the suspension vibration isolating rubber 23 and are screwed to the lower end thereof. It has been.

  The rubber body 57 has an outer diameter smaller than the left and right width of the horizontal plate 27 of the housing 21 and larger than the through hole 21a of the horizontal plate 27, and an inner diameter of the through hole 21a is also smaller. The height of the rubber body 57 is set to be smaller than the vertical width of the side plate upper portion 37 of the housing 21. Therefore, the plate-shaped metal fitting 61 provided on the lower surface of the rubber main body 57 is positioned at substantially the same height as the notch 37 a formed in the upper side plate 37.

  The rubber seat 59 has a substantially cylindrical shape, and has an outer diameter substantially the same as the through hole 21a and an inner diameter smaller than the through hole 21a. The upper part of the rubber seat 59 is positioned above the parallel plate 27 in a state where it is attached to the parallel plate 27 of the housing 21. An annular flange 59a having a diameter larger than that of the through hole 21a is formed on the upper portion of the rubber seat 59, and the hook 59a is engaged with the outer periphery of the through hole 21a, whereby the suspended shape is formed. The anti-vibration rubber 23 is prevented from coming out of the through hole 21a.

  The plate-shaped metal fitting 61 includes a horizontally long plate-shaped metal fitting body 61a that is a slightly elongated rectangular plate shape in the front-rear direction, and a pair of protruding portions 61b that protrude outward in the left-right direction from the center of the left and right end faces of the plate-like metal fitting body 61a. , 61b. The plate-shaped metal fitting body 61 a has a front-rear width smaller than the horizontal plate 27 of the housing 21 and a left-right width smaller than the horizontal plate 27. Therefore, as shown in FIG. 4, the plate-shaped metal fitting body 61 a is formed with a gap between the side plates 29, 29 of the housing 21, so that the inside of the housing 21 can be moved back and forth and right and left. Further, as shown in FIG. 4, the protrusions 61 b protrude outward in the left-right direction from both side plates 29 of the housing 21, and the front-rear width thereof is a notch formed in the side plate upper portion 37 of the housing 21. It is smaller than the front-rear width of the portion 37a. Therefore, each protrusion 61b is inserted with a gap between the front and rear edges of the notch 37a.

  Further, the thickness of the protruding portion 61 b is smaller than the vertical width of the cutout portion 37 a of the side plate upper portion 37. Therefore, a gap is also formed between the protruding portion 61b and the upper peripheral edge of the cutout portion 37a. The plate-shaped metal fitting 61 and the notch 37a serve to restrict movement of the suspension bolt 3 (the suspension vibration isolating rubber 23 attached to the suspension bolt 3) relative to the housing 21. It is configured. The regulation of relative movement by this movement regulating means will be described later.

  FIGS. 8A and 8B are views showing the reinforcing metal fitting 19, wherein FIG. 8A is a front view, FIG. 8B is a rear view, FIG. 8C is a plan view, and FIG. The reinforcing bracket 19 is made of a plate member having a U-shaped cross section, and can be pivoted up and down around a shaft 39 that passes through the shaft holes 41 and 41 formed in both side plates 29 and 29 of the housing 21. It is configured. In the following description, the reinforcing metal fitting 19 is rotated downward as shown in FIG.

  The reinforcing bracket 19 includes a pair of side plate portions 63 and 63 having the same shape and disposed on the left and right outer sides of the side plates 29 and 29 of the housing 21 and a connecting plate portion that connects the front ends of the side plate portions 63 and 63. 65.

  Each of the side plate parts 63 is located in front of the flanges 35 of the housing 21. Each side plate portion 63 has a substantially square shape, one side is slightly larger than the front and rear width of the horizontal plate 27 of the housing 21, and can cover the upper and middle portions of the side plate 29 of the housing 21.

  As shown in FIG. 8D, shaft holes 63a through which the shafts 39 are inserted and locked are formed at the corners of the upper rear ends of the side plate portions 63, while the upper front end and the lower rear end are formed. Screw insertion holes 63b and 63b through which screws 55 and 55 for fixing the side plate parts 63 to the side plate 29 of the housing 21 are inserted are formed at the corners. The upper and lower corners of the rear end of each side plate portion 63 have an R shape. Therefore, the both side plate portions 63 and 63 are rotatable in the vertical direction without interfering with the flanges 35 and 35 at the rear ends of the side plates 29 and 29 of the housing 21.

  Further, ribs 63c are formed from the central part of each side plate part 63 to the rear end. The rib 63c is formed by bulging a part of each side plate portion 63 outward in the left-right direction. The ribs 63c increase the rigidity of the side plate portions 63 and avoid interference between the protruding portions 61b of the plate-shaped metal fitting 61 of the suspension vibration-proof rubber 23 and the side plate portions 63.

Further, as shown in FIG. 8D, a protruding piece 67 having an L-shaped cross section protruding outward in the left-right direction is formed at the center of the lower end of each side plate portion 63. The protruding piece 67 includes a rectangular plate-like horizontal plate portion 67a protruding from the side plate portion 63 and a rectangular plate-like vertical plate portion 67b extending downward from the front end of the horizontal plate portion 67a. Screw insertion holes 67c and 67c are formed in the center portion of the portion 67a and the center plate in the left-right direction outward of the vertical plate portion 67b. The reinforcing metal fitting 19 is fixed to the web 11a and the flange 11b of the field receiver 11 supported by the side plate lower portion 49 of the housing 21 by screws 55 and 55 which are inserted through the screw insertion holes 67c and 67c.
As described above, since the protruding piece 67 protrudes outward in the left-right direction from the side plate portions 63, it is possible to avoid the tool from interfering with the side plate portions 63 when screwing.

  The connecting plate portion 65 is located in front of the housing 21 and covers the upper and middle portions of the housing 21 from the front. Accordingly, the open portion 45 of the housing 21 is closed by the connecting plate portion 65 and the side plate portion 63. The connecting plate portion 65 is formed with a notch 65 a wider than the suspension bolt 3 from the center to the center of the upper end.

  The reinforcing metal fitting 19 having such a configuration can be rotated in the vertical direction by rotating the side plate portions 63 and 63 around the shaft 39. Then, when the reinforcing metal fitting 19 is rotated downward, the side plate portions 63 and 63 and the connecting plate portion 65 surround the upper and middle portions of the housing 21 from the side. Specifically, the side plate portions 63, 63 are located on the side plate upper portions 37 of the side plates 29, 29 of the housing 21 and the narrow plate portion 43 in the left-right direction, and the connecting plate portion 65 of the side plates 29, 29 is arranged. By being located in the front, the reinforcing metal fitting 19 closes the opening 45 formed in the middle of the housing 21.

  On the other hand, the opening part 45 of the housing 21 is opened by rotating the reinforcing bracket 19 upward from the closed position. In this open position, both side plate portions 63 of the reinforcing metal fitting 19 are positioned above the middle portions of the side plates 29 and 29 of the housing 21, and the connecting plate portion 65 is positioned above the horizontal plate 27. In this open position, the suspension bolt 3 is inserted into the notch 65a formed in the connection plate portion 65, so that the connection plate portion 65 and the suspension bolt 3 do not interfere with each other, and the reinforcing metal fitting 19 is moved from the closed position to 90 °. The opening 45 can be secured widely.

  Next, a process of attaching the vibration-proof hanging bracket 1 having the above configuration to the suspension bolt 3 and supporting the field edge receiver 11 on the vibration-proof hanging bracket 1 will be described with reference to FIGS. 9 to 11.

  First, the lower end portion of the suspension bolt 3 through which the upper nut 31 is screwed and the fitting 28 fixed to the washer 30 and the reinforcing member 16 is inserted is attached to the plate-like vibration isolating rubber 25 and the horizontal plate 27 of the housing 21. The suspended vibration-proof rubber 23 is inserted. 9 to 11, the mounting bracket 28 is omitted.

  Next, as shown in FIG. 9, a nut 47 is attached to the lower end of the suspension bolt 3 projecting downward from the suspension-type vibration-proof rubber 23 in a state in which the reinforcing bracket 19 is flipped up to the open position and the open portion 45 is opened. Screw together. Subsequently, a tool is inserted from the open portion 45 of the housing 21 to tighten the nut 47, and the rubber body 57 of the suspended vibration-proof rubber 23 is sandwiched between the nut 47 and the horizontal plate 27 of the housing 21. Next, the upper flange 11 b of the field edge receiver 11 is fitted into slits 51, 51 formed in the side plate lower parts 49, 49 of the housing 21, and the field edge receiver 11 is supported by the side plate lower parts 49, 49.

  Next, as shown in FIG. 10, the reinforcing metal fitting 19 is lowered and moved to the closed position. At this time, the vertical plate portions 67 b and 67 b of the protruding pieces 67 and 67 of the reinforcing metal fitting 19 abut against the web 11 a of the field receiver 11. .. Are inserted into the screw insertion holes 63b, 63b,... Formed in the side plates 63, 63 of the reinforcing bracket 19, and the both side plates 63, 63 are inserted into the side plates 29, 29 of the housing 21. Secure with screws. Thereby, the reinforcing metal fitting 19 is fixed to the housing 21.

  11, screw insertion holes 67c, 67c,... Formed in the horizontal plate portions 67a, 67a and the vertical plate portions 67b, 67b of the projecting pieces 67, 67, and the flanges 53, 53 of the housing 21, respectively. .. Are inserted into the screw insertion holes 53a, 53a formed in the above, and the projecting piece 67 and the side plate lower portions 49, 49 are screwed to the edge receiver 11, respectively. Thereby, the housing 21 and the reinforcing metal fitting 19 are fixed to the field edge receiver 11.

  Through the above steps, the vibration-proof hanging bracket 1 is fixed to the suspension bolt 3 and the field edge receiver 11 is supported by the vibration-proof hanging bracket 1. Are supported by a plurality of anti-vibration suspension brackets 1, 1,..., And a plurality of field edges 13, 13,. The ceiling finishing material 7 is fixed to the field edges 13, 13,.

  In the ceiling structure thus provided, when a load in the vertical direction is input to the vibration isolating suspension fitting 1 during an earthquake or the like, the protrusions 61b and 61b of the plate fitting 61 of the suspension vibration isolating rubber 23 and the housing When the upper peripheral edges of the notch portions 37a and 37a of the upper side plates 37 and 37 of the side plate 21 are in contact with each other, the relative movement of the suspension bolt 3 with respect to the housing 21 is restricted in the vertical direction.

  Further, when a load in the front-rear direction is input to the vibration proof hanging bracket 1, the protruding portions 61 b and 61 b of the plate-shaped bracket 61 and the front and rear peripheral edges of the cutout portions 37 a and 37 a of the side plate upper portions 37 and 37 of the housing 21 contact each other. By contact, relative movement of the suspension bolt 3 with respect to the housing 21 is restricted in the front-rear direction.

  Further, when a load in the left-right direction is input to the vibration proof hanging bracket 1, the pair of left and right outer peripheral portions excluding the protruding portions 61 b and 61 b in the plate-shaped bracket 61 and the side plate upper portions 37 and 37 of the housing 21 come into contact with each other. Thus, relative movement of the suspension bolt 3 with respect to the housing 21 is restricted in the left-right direction.

  Incidentally, since the ceiling structure of the present embodiment is applied to a large space such as a gymnasium as described above, the ceiling base material 5 and the ceiling finishing material 7 are relatively large. Therefore, when an earthquake or the like occurs and the ceiling base material 5 and the ceiling finishing material 7 try to displace in the horizontal direction, a relatively large horizontal force acts on each antivibration hanger 1 because the inertial force is large. At this time, since the reinforcing metal fitting 19 surrounds the suspension type vibration isolating rubber 23 and the opening 45 of the housing 21 from the side and forms a box shape together with the housing 21, the rigidity of the vibration isolating hanging metal fitting 1 is remarkably increased. More specifically, both side plates 63, 63 of the reinforcing metal fitting 19 suppress the deformation of the side plates 29, 29 of the housing 21 inside. For this reason, it can suppress that the field edge receiver 11 displaces to a horizontal direction.

  Furthermore, the housing 21 and the reinforcing metal fitting 19 are screwed to the field edge receiver 11, and the housing 21, the reinforcing metal fitting 19 and the field edge receiving 11 are rigidly coupled. Therefore, the horizontal relative displacement of the field edge receiver 11 with respect to the anti-vibration hanger 1 can be suppressed.

  Further, the reinforcing metal fitting 19 is screwed to the housing 21, and the reinforcing metal fitting 19 and the housing 21 are integrated. Therefore, the housing 21 can be reinforced more strongly by the reinforcing metal fitting 19. Therefore, the horizontal deformation of the housing 21 can be more reliably suppressed.

  Therefore, the horizontal displacement of the ceiling base material 5 and the ceiling finishing material 7 can be effectively suppressed.

-Effects of the embodiment of the invention-
According to the above-described embodiment, the reinforcing metal fitting 19 is located at the closed position, and the upper portion of the housing 21 in which the suspension-type anti-vibration rubber 23 is disposed and the side of the middle portion of the housing 21 in which the open portion 45 is formed are provided with the reinforcing metal fitting. A box 19 is formed by surrounding 19 to reinforce the housing 21. Therefore, even if a horizontal force is applied to the housing 21, the horizontal deformation of the housing 21 can be suppressed.

  By the way, if the upper part and the middle part of the housing 21 are box-shaped as described above, a tool for fixing the nut 47 cannot be inserted when the vibration-proof hanging bracket 1 is attached to the suspension bolt 3.

  Therefore, according to the above-described embodiment, the reinforcing bracket 19 can be moved between the closed position where the upper portion and the middle portion of the housing 21 are surrounded from the side and the open portion 45 is closed, and the open position where the open portion 45 is opened. Configured. Thereby, when attaching the vibration-proof suspension bracket 1 to the suspension bolt 3, first, the suspension bracket 19 is moved to the open position to open the opening 45, and the suspension bolt 3 is inserted into the through hole 21 a, The suspension-type anti-vibration rubber 23 and the lower nut 47 are attached to the suspension bolt 3, and a tool is inserted from the opening 45 to tighten the nut 47. Next, the field receiver 11 is supported on the side plate lower portions 49, 49 of the housing 21. And the reinforcement metal fitting 19 is moved from an open position to a closed position, and the upper part and the middle part of the housing 21 are made into a box shape. In this way, by configuring the reinforcing bracket 19 so as to be movable between the open position and the closed position, the work of attaching the vibration-proof hanging bracket 1 to the suspension bolt 3 is facilitated.

  Further, according to the above embodiment, the vibration-proof hanging bracket 1 is rigidly coupled to the field edge receiver 11 by fixing the reinforcing metal fitting 19 and the housing 21 to the field edge receiver 11. Therefore, it is possible to suppress the horizontal relative displacement of the field edge receiver 11 with respect to the antivibration hanger 1, and it is possible to more reliably suppress the housing 21 of the hanging hanger 17 from being deformed in the horizontal direction.

  Furthermore, according to the above-described embodiment, the reinforcing metal fitting 19 is screwed to the housing 21 so that they are integrated with each other, so that the housing 21 can be firmly reinforced by the reinforcing metal fitting 19.

  In addition, according to the above-described embodiment, when attaching the vibration-proof suspension fitting 1 to the suspension bolt 3 and supporting the field receiver 11 on the vibration-proof suspension fitting 1, first, the suspension bolt 3 is attached to the through hole 21 a of the housing 21. Then, the reinforcing bracket 19 is flipped up and moved to the open position. Thereby, since the opening part 45 which consists of the notches 33 and 33 is open | released, a tool can be inserted from the side of the housing 21. FIG. In this state, the suspension-type anti-vibration rubber 23 and the nut 47 are attached to the suspension bolt 3 and the nut 47 is tightened with a tool. Next, the field receiver 11 is supported by the side plate lower portions 49, 49 below the housing 21. Finally, the reinforcing bracket 19 is lowered, and the upper and middle portions of the vibration-proof hanging bracket 1 are box-shaped. As described above, the opening portion 45 is secured by the simple operation of rotating the reinforcing bracket 19 in the vertical direction to improve the mountability of the vibration-proof hanging bracket 1 and the vibration-proof hanging bracket 1 is formed in a box shape. Horizontal deformation can be suppressed.

  Moreover, according to the said embodiment, since the ribs 63c and 63c are formed in the side plate parts 63 and 63 of the reinforcing metal fitting 19 to increase the rigidity, the horizontal deformation of the housing 21 by the side plate parts 63 and 63 is more reliably performed. Can be prevented.

  Furthermore, according to the above embodiment, the suspension bolt 3 enters the notch 65a formed in the connecting plate portion 65 when the reinforcement bracket 19 is rotated upward, so that the suspension bolt 3 interferes with the reinforcement bracket 19. Therefore, the reinforcing metal fitting 19 can be rotated further upward. Therefore, since the open part 45 can be ensured more widely, the fixing work of the nut 47 becomes easier.

(Other embodiments)
In the above embodiment, the anti-vibration hanging bracket 1 supports the field edge receiver 11, but is not limited thereto, and may support, for example, an outdoor unit or a lighting fixture .

Also, in the above embodiment, the side plate upper 37 notch 37a is formed, not limited to this, through holes may be formed.

  Further, in the above embodiment, the slit 51 for attaching the field receiver 11 is formed in the side plate lower part 49, but the present invention is not limited to this. For example, the field receiver 11 is screwed to the side plate lower part 49. Also good.

  Furthermore, although the suspended vibration-proof rubber is used as the vibration-proof member in the above embodiment, the present invention is not limited to this, and a coil spring, a viscoelastic body, or the like may be used as the vibration-proof member.

  As described above, the vibration-proof hanging bracket according to the present invention can be applied to a use for preventing horizontal deformation.

1 Anti-vibration suspension bracket 3 Suspension bolt 11 Field edge receiver (supported body)
17 Hanging hanger 19 Reinforcing bracket (reinforcing member)
21 Housing 21a Through-hole 23 Suspended vibration-proof rubber (vibration-proof member)
27 Horizontal plate 29 Side plate 33 Notch 45 Open part 47 Nut 49 Side plate lower part (support part)
63 Side plate part 63c Rib 65 Connecting plate part 65a Notch

Claims (5)

A vibration-proof hanging bracket that is attached to a suspension bolt extending from a support and supports a supported body,
A suspension hanger attached to the suspension bolt and supporting a supported body; and a reinforcing member attached to the suspension hanger and reinforcing the suspension hanger.
The suspension hanger has a housing having a through hole for inserting the suspension bolt in the upper portion and a support portion for supporting the supported body in the lower portion, and the housing includes the suspension bolt. Is attached by a nut through a vibration isolating member, and an open part for inserting a tool for fixing the nut in the middle part from the side of the housing is formed,
The housing has a horizontal plate in which the through-hole is formed, and a pair of left and right side plates that extend downward from the horizontal plate and have the support portion formed at a lower end thereof. Arranged at the upper part between both side plates, the open part is constituted by a notch part opened to the front formed in each side plate,
The reinforcing member is
It is configured to be movable between an open position that opens the open portion and a closed position that surrounds the upper and middle portions of the housing from the side to reinforce the housing and close the open portion. And
A pair of side plate portions disposed on the outer side in the left-right direction of the both side plates, each attached to the side plate on the inner side in the left-right direction so as to be pivotable in the vertical direction, and a connecting plate portion connecting the both side plate portions; In the open position, the both side plate portions are positioned above the middle portion of the side plate, and the connecting plate portion is positioned above the horizontal plate, while rotating downward from the open position to the closed position. The anti-vibration suspension bracket according to claim 1, wherein the side plate portions are positioned on the right and left sides of the upper and middle portions of the side plates and the connecting plate portion is positioned in front of the side plates . In the vibration-proof hanging metal fitting according to claim 1,
A vibration-proof hanging bracket, wherein the reinforcing member and the housing are fixed to the supported body in a state where the supporting portion supports the supported body and the reinforcing member is in the closed position. In the vibration-proof hanging metal fitting according to claim 1 or 2,
The anti-vibration hanging bracket, wherein the reinforcing member is fixed to the housing at the closed position. In the vibration-proof hanging metal fitting according to any one of claims 1 to 3 ,
The anti-vibration hanger is characterized in that a rib is formed on the side plate portion. In the vibration-proof hanging metal fitting according to any one of claims 1 to 4 ,
The anti-vibration suspension metal fitting, wherein the connection plate portion is formed with a notch through which the suspension bolt can be inserted in a state where the reinforcing member is in the open position.

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