JP2017218804A - Fixing metal fitting for ceiling joist receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing metal fitting 6 for a ceiling joist receiver having small height and width that may be installed without an upper nut 21 protruding from a top surface of a ceiling joist receiver 3, thereby enabling the ceiling joist receiver 3 to be fixed on a bottom edge of a hanging bolt even on a ceiling substrate structure in a narrow ceiling space, regardless of whether existing or new, at the same time functioning as a tilting restriction surface that prevents significant widening and deformation of a side surface of the ceiling joist receiver 3 by a hanging bolt fixing part 62, thus enhancing aseismatic resistance of the structure.SOLUTION: A fixing metal fitting 6 for a ceiling joist receiver is installed integrally and next to each other with a ceiling joist receiver fitting/fixing part 61 on a side and a hanging bolt fixing part 62 on the other side, with a side surface piece 6a abutted on the side surface of the ceiling joist receiver interposed in between, the ceiling joist fitting/fixing part being formed in a U-shape when seen from sideways, and the hanging bolt fixing part being formed by bending into an L-shape for having a bottom end side of a hanging bolt 2 fixed with a nut thereon. The hanging bolt fixing part 62 is configured such that an upper nut 21 may be installed within a side surface region having same height and a width as the ceiling joist receiver 3.SELECTED DRAWING: Figure 5

Description

The present invention is also applicable to a ceiling base structure having a narrow ceiling space (floor) formed between a frame ceiling part (ceiling slab, etc.) and a ceiling panel, regardless of whether it is newly installed or existing. Further, the present invention relates to a field edge receiving fixture capable of preventing deformation of a suspension bolt fixing portion fixed to a nut at a lower end portion of the suspension bolt and improving its earthquake resistance.

In general, a conventional ceiling is provided with a plurality of suspension bolts that are hung on a frame ceiling portion (ceiling slab, etc.) at a predetermined interval, and a lower edge between these suspension bolts via a field hanger or a hanging bracket. A channel-shaped field edge receiver (ceiling base material) to be supported, and an inverted U-shaped groove on the inside of the upper end of both side surfaces that open upward, are attached to the field edge receiver via a field edge mounting bracket. It is composed of a plurality of channel-shaped field edges (ceiling base material) and a ceiling panel screwed to the field edges.
By the way, as a field-hanging hanger and a hanging metal fitting conventionally employed for such a ceiling base, a side-view inverted L-shaped suspension bolt connected to a lower end portion of a hanging suspension bolt so that the vertical position can be adjusted by adjusting a nut. A fixed part and a U-shaped field edge receiving support part are vertically formed integrally to support the field edge receiver by dropping it from above, and the position is changed by loosening the nut of the field edge hanger with respect to the suspension bolt. Is known to have a vertical arrangement in which the vertical position is adjusted (see FIG. 4 of Patent Document 1 and FIGS. 5 and 6 of Patent Document 2).

  However, it is necessary for such a vertical-type field ledge hanger to drop and support the entire width of the field ledge receiver in the field edge support section, and the depth is longer than the height of the field ledge support. Therefore, the suspension bolt fixing part must be provided above the field receiving support part, and the whole must be formed in a vertically long shape when viewed from the side. There is a production restriction that it must not. For this reason, when the ceiling space formed between the frame ceiling part and the ceiling panel is a narrow ceiling base structure, for example, with the field edge hanger fixed to the suspension bolt with the nut fixed, There is a problem that it cannot be adopted because the work of dropping into the receiving support section cannot be performed. In addition, when it is desired to add a suspension bolt to an existing ceiling base, the clearance between the ceiling panel and the field edge receiver (height of the field edge) is 19 mm even if the ceiling space has a normal height space. Because it is narrow, it is forced to form a lateral width of 17 or 8 mm so that the field edge hanger can pass through the gap in a sideways state, and the support receiving surface area for the field edge receiver becomes narrow, Not only does it have the problem of seismic resistance that the predetermined support receiving surface area such as concentrated stress is not obtained, but also the vertical adjustment width must be within this narrow range, which limits the formation and construction. There was a problem of receiving.

On the other hand, in order to improve the earthquake resistance, the conventional field edge receiving hanger is provided with a locking piece (3c) for preventing the field edge receiver from being pulled upward, as disclosed in Patent Document 1, and It is necessary to regulate the expansion of the U-shaped part (3b) serving as the field edge support part by separately providing a seismic reinforcement bracket (6). However, since the load on the entire ceiling base is applied to the suspension bolt fixing portion with the bottom end of the suspension bolt fixed to the nut, the stress load is most concentrated when subjected to vibration such as an earthquake, and the suspension bolt is fixed. The part is connected to the nut at an eccentric position opposite to the upper side of the edge receiving support part, and not only the amplitude is increased, but also there is no structure for restricting deformation, so the vibration due to the resonance action As a result of amplification, the inverted L-shaped suspension bolt fixing part expands in a square shape and the suspension bolt lower end part also undergoes a curved deformation, causing the entire ceiling surface to descend, and the most suitable ceiling structure It cannot be maintained.
Therefore, in order to reinforce the inverted L-shaped suspension bolt fixing portion, as disclosed in Patent Document 2, the upper plate portion (9) of the suspension bolt fixing portion and the front plate portion (11) of the U-shaped portion. It is also proposed to provide an anti-L-shaped second member (7) that closes the wall, and to form a metal fitting as a whole in a rectangular shape and to prevent the upper plate portion (9) from expanding and deforming, thereby providing seismic reinforcement. In this case, since the upper plate portion (9) is bent to the front plate portion (11) side, there is a problem that the ceiling space cannot be adopted in the structure of the ceiling base as described above. .

JP 2010-121370 A JP 2013-023856 A

The present invention was devised to eliminate the above-described problems, and is a metal fitting for attaching a field edge receiver to a suspension bolt. Since the two are arranged in parallel, the height and width can be shortened compared to the conventional one in which both are arranged in series, and the suspension bolt is sandwiched between the suspension bolts. The upper and lower nuts to be screwed in can be arranged close to the inner surface area of the width that is the side surface of the edge support, and even if it is a ceiling base structure with a narrow ceiling space, When installing additional suspension bolts on the existing ceiling, it is possible to fix the field receiver to the lower end of the suspension bolt without any upper or lower hand, and the suspension bolt fixing part is connected to the field edge via the side piece. Rigid strength integrated with receiving fitting fixing part When it receives vibrations such as earthquakes, it is not only the corners of the suspension bolt fixing part abutting against the side surface of the field edge receiver, but also the upper and lower sides of the suspension bolt. Can be used as a tilting restricting means that directly or indirectly abuts the side face of the field edge receiver, and functions as a restricting surface that restricts the suspension bolt fixing part from being greatly expanded and deformed. An object of the present invention is to provide a field edge receiving fixture that can be used.

In order to solve the above-described problems, the field edge receiving fixture of the present invention includes a plurality of suspension bolts that are suspended from the housing ceiling with a predetermined interval, and a plurality of suspension bolts that are installed on the lower end side of the suspension bolt. At the bottom edge of the ceiling bolt including a field edge receiver, a field edge attached to the field edge in a crossing manner, and a ceiling panel fixed to the field edge by screws, the field edge receiver is attached to the lower end side of the suspension bolt. A field edge receiving fixture for bending the field edge receiving bracket on one side thereof through a side piece that is faced to the side surface of the field edge receiving member. The upper edge piece and the lower face piece that have been squeezed into the U-shaped side edge receiving and fixing part that is formed in a U shape in side view, and the other side, the lower end of the suspension bolt is inserted into the suspension bolt insertion hole, and the nut A hanging bolt that is bent in an L shape against the field receiving fitting fixing portion so as to be fixed. The field edge receiving and fixing part extends the upper surface piece and the lower surface piece so as to be wider than the lateral width of the field edge receiver, and at the tip thereof. While the externally fitted field rim receiver is configured to be clamped and fixed by bolt tightening, the suspension bolt fixing portion has an upper nut of a nut that is screwed and fixed to the suspension bolt with its upper and lower surfaces interposed therebetween, The present invention is characterized in that it can be disposed in a side surface region having a width.

Although the present invention is configured as described above, it is a metal fitting for attaching the edge receiver to the suspension bolt, and the field edge receiving fitting fixing portion and the suspension bolt fixing portion are arranged in parallel. Therefore, compared to the conventional one in which both are arranged in series, not only can the height width be shortened, but the upper and lower sides where the suspension bolt is screwed and fixed across the suspension bolt fixing portion The nuts can be arranged in close proximity to the width inner surface area that is the side surface of the field receiver, and also double nuts and vibration-proof rubber can be arranged in the surface area. Even in the case of a ceiling base structure with a narrow ceiling space, not only for new installations, but also when installing additional suspension bolts on existing ceilings, the conventional vertical type Field reception with the same workability as In addition, the parallel mounting structure in which the suspension bolt fixing part is integrated with the field edge fitting fitting fixing part via the side piece can improve the rigidity strength of the metal fitting itself, The support receiving surface area of the receiver is also inevitably wide, and when subjected to vibrations such as earthquakes, the corner of the suspension bolt fixing part abuts the side of the field receiver when coupled with such a parallel structure. In addition, the upper and lower nuts, side pieces, and spacers of the suspension bolt can be used as a tilt restricting means that directly or indirectly abuts on the side of the field receiver, and the side of the field receiver is suspended. It can be made to function as a tilt restricting surface that restricts the bolt fixing portion from being greatly expanded and deformed. As a result, the amplification of vibration due to the resonance action of the suspension bolt fixing part is suppressed, and the expansion deformation extending in a square shape can be prevented, and the seismic strength and seismic performance compared to the conventional vertical type. The suspension position of the suspension bolt can be suitably maintained over a long period of time, and the weight of the entire ceiling can be firmly supported to maintain a good suspension state permanently. Can do.

1 is a schematic overall explanatory view showing a ceiling foundation according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a field edge receiving fixture which concerns on embodiment of this invention, Comprising: (A) is a front view, (B) is a right view, (C) is a top view, (D) is a bottom view. It is a perspective view of a field edge receiving fixture according to an embodiment of the present invention. It is a perspective view which shows the spacer as a tilt control means of a suspension bolt fixing | fixed part. It is a side view which shows the state which attached the field edge receiving fixture to the ceiling base | substrate with a narrow ceiling space. It is a side view which shows the state which attached the field edge receiving fixture to the ceiling base | substrate with a narrow ceiling space with vibration-proof rubber. It is a front view which shows the state which attached the field edge receiving fixture to the hanging bolt extended to the existing ceiling base.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A field edge receiving fixture that exemplifies an embodiment of the present invention as a preferred embodiment will be described below in detail with reference to the drawings.
FIG. 1 is a schematic overall explanatory diagram of a ceiling foundation according to an embodiment of the present invention. The ceiling foundation shown in this figure includes a plurality of suspension bolts 2 that are suspended from the housing ceiling portion 1 at a predetermined interval, and suspension bolts 2 that are interposed between the suspension bolts 2 via field edge fixing fixtures 6. A steady rest that is horizontally installed on the suspension bolt 2 between the nodule support 3 (ceiling base material) supported by the lower end part and the suspension bolt 2 between the frame ceiling part 1 and the nodule support 3. 4 (ceiling base material), a field edge 5 (ceiling base material) attached to the field edge receiver 3 via a field edge mounting bracket 51, and a ceiling panel 7 fixed to the field edge 5 by screws.

  The field edge receiver 3 is formed of a thick plate material having a plate thickness standard of about 1.2 mm or 1.6 mm, and is formed of a channel material having a U-shaped cross section or a C-shaped lip groove type material having a side opening. The vertical position is changed by changing the position of the edge receiving fixture 6 attached to the tip of the suspension bolt 2 while being supported in parallel by the edge receiving fixture 6 at a predetermined interval. Adjusted. At this time, the field edge receiver 3 is processed in advance so as to have a short length that does not come into contact with a not-shown chassis wall part, and both ends thereof are fixed to the chassis wall part via field edge receiving fixtures.

  The field edge 5 is a channel material or lip formed by forming a reverse U-shaped groove 5a by bending the upper ends of both sides opened upward with a thin plate material having a thickness standard of about 0.5 mm. It is a C-shaped lip groove type thick plate material having a piece, and is assigned in parallel to the ceiling portion with a predetermined interval so as to be orthogonal to the field edge receiver 3. As the field edge 5, there are a double field edge and a single field edge having different width dimensions, and an inverted U-shape is formed on the lower surface portion of the field edge receiving bracket 3 via a field edge mounting bracket 51 having a shape suitable for each. The groove 5a is supported in a crimped state. There are 19 types (19 mm) and 25 types (25 mm) having different height widths in the double field edge and the single field edge, respectively, and the field edge 5 shown in this embodiment is the 19 field shape of the single field edge. . And the ceiling base is comprised by passing the ceiling panel 7 between the field edges 5 allocated to the ceiling part, and screwing this.

The steady rest fixing bracket 41 has a suspension bolt fixing portion to the central suspension bolt 2 and a fitting fixing portion to the steady rest 4 on both sides thereof, and is formed in a substantially U shape in side view.
The steady rest 4 is made of a channel material having a U-shaped cross section that opens to the side, and is a beam type that is horizontally installed between a plurality of suspension bolts 2 in order to maintain the distance between the suspension bolts 2. Then, the anti-rest fitting 41 is assembled and fixed by fitting the suspension bolt 2 and the anti-rest 4 at the same time.

As the field edge mounting bracket 51, a single fixed type formed of a thin plate material that is press-formed by a plate material having a thickness of 0.6 mm shown in FIG. It is made of a thick plate material that is press-molded with a 6 mm plate material and cannot be deformed with finger pressure. It is a pinch-fixed type mainly used for ceiling foundations that require earthquake resistance, and is selected appropriately according to the specifications of the ceiling foundation. And attached to the field receiver 3.
The field edge mounting bracket 51 is formed in an inverted U shape at both ends of a field edge receiving mounting part that faces the side surface of the field edge receiving 3 and a hanging part that extends into the opening of the field edge 5 below. A single-fixed type comprising a field edge support receiving part inserted into the groove 5a to support and receive the field edge 5 and an upper fixing piece formed on the upper surface side of the field edge receiver 3 extending from the field edge mounting part. In the case of the thing, the upper fixing piece is bent and fixed, and in the pinching fixing type, the field edge receiver 3 is sandwiched with the field edge mounting bracket 51 as a pair, and the upper fixing pieces are arranged on the upper surface side of the field edge receiver 3. It is attached by fixing the screw.

Next, the field edge receiving fixture according to the embodiment of the present invention will be described in detail with reference to FIGS. 2A is a front view of a field edge receiving fixture, FIG. 2B is a right side view, FIG. 2C is a plan view, FIG. 3D is a bottom view, and FIG. It is a perspective view.
As shown in these drawings, the field edge receiving fixture 6 is press-molded with a thick plate material having a thickness of about 2 mm, and one side thereof is provided via a side piece 6a that faces the side surface of the field edge receiver 3. In addition, the upper edge piece 611 and the lower face piece 612 that are bent so that the outer edge receiver 3 can be externally fitted are formed, and the outer edge receiver fitting fixing portion 61 that is formed in a U shape in a side view, and the other side, The lower end side of the suspension bolt 2 is inserted into the suspension bolt insertion hole 62a and is bent and formed in an L shape against the edge receiving fitting fixing portion 61 so as to be sandwiched and fixed by the upper and lower nuts 21 and 21. And a suspension bolt fixing portion 62 having a suspension bolt fixing piece 621, which are integrally arranged in parallel. Further, the suspension bolt insertion hole 62a is offset to the side edge receiving fitting fixing portion 61 side, and the peripheral surface of the upper and lower side nuts is opposite to the side edge of the side edge receiving as compared with the conventional vertical type. It is perforated so as to be disposed close to the side piece 6a, and when subjected to shaking due to an earthquake or the like, the deformation rigidity of the suspension bolt fixing piece 621 is increased and the upper nut 21 is directly received by the field edge. 3, the lower nut 21 abuts indirectly via the side piece 6 a, so that the suspension bolt fixing piece 621 can be easily regulated to be tilted, and the effect of preventing expansion deformation is enhanced. be able to.

  The field edge receiving and fixing portion 61 extends the upper surface piece 611 and the lower surface piece 612 wider than the lateral width of the field edge receiver 3, respectively, and a nut hole 61a is formed at the tip of the upper surface piece 611. A bolt insertion hole 61b is tapped at the tip of the lower surface piece 612, and the externally fitted field edge receiver 3 is fastened by a fixing bolt 613, so that the upper surface and the lower surface of the field edge receiver 3 are pressed and sandwiched. Thus, it is configured to be clamped and fixed from the U-shaped opening side so as to be prevented from coming off. Further, a screw hole 6a1 is formed in the vicinity of the connecting portion of the side edge receiving fitting fixing portion 61 and the suspension bolt fixing portion 62 of the side piece 6a. The screws 9 can be fixed with screws 9.

  The suspension bolt fixing part 62 bends the suspension bolt fixing piece 621 at a substantially central portion of the field edge receiving fitting fixing part 61, and further, the lower side of the side piece 6 a is connected to the field edge receiving attachment fixing part 61. A field edge receiving engagement piece 622 is provided which is bent in an L shape together with the lower surface piece 612 and is folded back so as to be engaged with the lower surface end of the field edge receiving 3. That is, when the upper nut 21 and the lower nut 21 are screwed and fixed with the lower side of the suspension bolt 2 sandwiching the upper and lower surfaces of the suspension bolt fixing piece 621, both nuts 21 and 21 are positioned at the height of the field receiver 3. The field edge receiving engagement piece 622 is arranged in a side surface region that is a width, and is set in a state before the field edge receiver 3 is fixed to the field edge receiver fitting fixing portion 61 by the fixing bolt 613. It is configured to be temporarily fixed. Also, a screw hole 62b for preventing lateral displacement of the field edge receiver 3 is formed in the lower surface piece of the field edge engaging piece 622, and this screw hole 62b is provided with a drill tapping screw or the like at an arbitrary position as necessary. The screw 9 is used to fix the screw to the lower surface of the field receiver 3.

  FIG. 4 shows an example in which the upper nut 21 is brought into contact with the side surface of the field edge receiver 3 as a direct tilt regulating means when the tilt regulation of the suspension bolt fixing piece 621 (the suspension bolt fixing portion 62) is performed. A tilt regulating means as a separate member interposed between the upper nut 21 (including the suspension bolt 2 on the upper surface thereof) and the side surface of the field edge receiver 3 is arranged so that the tilt can be regulated indirectly. It is a perspective view which shows the spacer 8 which was made. The spacer 8 has a width that can be interposed between the suspension bolt 2 and the side piece 6a, and has a base 81 that is U-shaped in a side view so as to fit the upper and lower surfaces of the upper and lower nuts 21 and 21, and a distal end side thereof. A nut locking piece 82 that is extended and is narrower than the base 81 so that the end of the suspension bolt 2 is positioned stepwise outward from the outer diameter of the suspension bolt 2, and an L-shape from the nut locking piece 82. It is formed integrally with a gripping piece 83 bent into a shape. Further, the nut locking piece 82 is formed so as to be easy to bend through a bent portion 82a having a hole drilled in the stepped continuous portion with the tip of the base portion 81, and the bent portion 82a The bent position is set at a position behind the outer diameter of the nut 21.

  That is, the nut locking piece 82 has a function of preventing the upper and lower nuts 21 and 21 from loosening and coming off when the upper and lower nuts 21 and 21 are fitted and attached, and the nut locking piece 82 is connected to the nut via the bent portion 82a. By holding the gripping piece 83 by hand and bending the locking piece 82 inward (in the direction of the arrow in the figure), the upper and lower nuts 21, 21 are arranged at an arbitrary angle outside the outer diameter of the suspension bolt 2. Accordingly, it is brought into contact with the outer peripheral angle surface that is variably fixed, has a function of restricting rotation by stopping and locking the nut 21, and it is easy to perform the bending operation by grasping both the bent portions 82 a. By providing the spacer 8 in this manner, a regulating member that indirectly regulates tilting via the spacer 8 when the side surface of the field edge receiver 3 is used as a tilting regulating surface for the expansion deformation of the suspension bolt fixing piece 621. As compared with the case where the nut 21 is directly abutted, the tilt angle with respect to the swing can be reduced. In order to reduce the tilt angle, in this embodiment, the side piece 6a with which the nut 21 abuts functions as an indirect regulating means, or the upper and lower sides may be the double nut 21. The configuration can be arbitrarily set as long as the side surface of the edge receiver 3 can be used as a tilt regulating surface against the expansion deformation of the suspension bolt fixing piece 621.

  Now, a procedure for attaching the field edge receiver 3 to the lower side of the suspension bolt 2 using the field edge receiver fixing bracket 6 configured as described above will be described in detail with reference to FIGS. FIG. 5 is a side view showing a state of being attached to a ceiling base having a narrow ceiling space, and FIG. 6 is a side view showing a state of being attached together with an anti-vibration rubber. As shown in these figures, in order to attach the field receiving fixture 6 according to the embodiment of the present invention, first, the upper nut 21 is screwed into each suspension bolt 2 in advance, and the lower end of the suspension bolt 2 is shown. The suspension bolt insertion pieces 62a are inserted into the suspension bolt insertion holes 62a, the suspension bolt fixing pieces 621 are sandwiched between the lower nuts 21, and the field edge receiving fixtures 6 are temporarily set to the suspension bolts 2 in a loose fit.

  In the main fixing work of the field edge receiving fixture 6 to the suspension bolt 2, the suspension bolt 2 between any two points is selected, and the suspension bolt fixing portion 62 is vertically adjusted to obtain a certain level of horizontal. In the positioning state, the field edge receiver 3 is inclinedly applied to the field edge receiving engagement piece 622 and the lower surface piece 612 from the lower surface side, and the field edge receiving engagement piece 622 is attached to the tip of the lower surface of the field edge receiving 3. In the engaged state, the upper edge side of the field edge receiver 3 is pushed in while being rotated to the upper surface piece 611 side, and is inserted and set, thereby temporarily assembling the field edge receiver 3 to the field edge receiver fitting fixing portion 61. In this state, the upper and lower nuts 21 and 21 are screwed in to adjust the suspension bolt fixing portion 62 up and down again with respect to each suspension bolt 2 to set the horizontal level and set adjustments such as set positioning. Do the work and fix it.

Thereafter, the fixing bolt 613 inserted into the bolt insertion hole 61b is tightened into the nut hole 61a, and the field edge receiver 3 is clamped and fixed between the upper surface piece 611 and the lower surface piece 612, so that the field edge receiving fitting fixing portion 61 is fixed. After the main fixing, if the screws are fixed to the side surface and the bottom surface of the field receiver 3 through the screw holes 6a1 and 62b, the field receiver 3 and the field receiver fixing bracket 6 can be attached in a tightly integrated state. Furthermore, if necessary, the spacer 8 is finally inserted and set, and the nut locking piece 82 is bent and attached, and then the mounting operation is completed, and the setting operation is simply performed without any difference from the conventional column type. be able to.
In addition, by arranging the field edge receiving fixtures 6 alternately upside down, the field edge receiving engagement pieces 622 together with the fixing bolts 613 firmly receive and share the vibration load to improve the earthquake resistance. In addition, when the side piece 6a is arranged and attached to the opening side of the field receiver 3, a through screw (drill screw or fastening bolt) having a long screw 9 (not shown) is used. What is necessary is just to insert in the side surface of 3 and to fix with a screw.

  In addition, when the vibration isolator rubber 22 with a washer is used so that direct vibration transmission to the ceiling base material can be relaxed when a vibration due to an earthquake or the like occurs, the suspension bolt fixing piece 621 is attached to the suspension bolt. 2 is inserted, the upper vibration-proof rubber 22 is inserted, the suspension bolt fixing piece 621 is inserted, the lower vibration-proof rubber 22 is inserted, and the lower nut 21 is tightened to dampen the vibration. What is necessary is just to fix with a double nut stop in the state which compressed the rubber | gum 22,22. As a result, as shown in FIG. 6, even if the upper surface piece 611 is close to the housing surface of the housing ceiling portion 1 and there is almost no excess space between them, the upper nut 21 remains on the upper surface. The double nut and the anti-vibration rubber 22 can be disposed within the surface area width which is the side surface of the field edge receiver 3 without projecting greatly above the piece 611, and the lower surface of the field edge 5 and the ceiling It can be used as an area for disposing the tip of the suspension bolt 2 or the lower nut 21 in a space area with the panel 7 and can be attached with a compact fit that effectively uses the space area.

  In this way, the field edge receiver 3 is juxtaposed to the field edge receiving fixture 6 by sandwiching and fixing the fixing bolt 613 by the upper surface piece 611 and the lower surface piece 612 and the engagement structure by the field edge receiving engagement piece 622. Rotation blur regulation in the left and right (longitudinal) direction and the tilt direction is achieved at the two locations, and the side and bottom surfaces of the field edge receiver 3 are firmly integrated with each other via screws 9. In addition to maintaining a tight contact state where the positional deviation of the field edge receiver 3 is restricted and receiving a torsion and tilting, it is possible not only to obtain an earthquake resistant structure with improved assembly rigidity, The suspension bolt fixing piece 621 (the suspension bolt fixing portion 62) tilts in the left-right direction around the suspension bolt 2 because it is configured to be disposed in the side surface region having the height width of the field receiver 3. When receiving a vibration load, Functioning as tilt regulating means for directly contacting the upper nut 21 and the lower nut 21 indirectly via the side piece 6a or the spacer 8 with respect to the side surface of the above-mentioned side surface, and the amplification of vibration due to the resonance action is regulated, As a result of being able to prevent the expansion deformation extending in a square shape and dramatically improving the seismic strength and seismic performance as compared with the conventional vertical-type field rim hanger 31, the suspension bolt The hanging posture of 2 can be suitably maintained over a long period of time, and the weight of the entire ceiling can be firmly supported to maintain a good suspended state permanently.

Next, a procedure for adding the suspension bolt 2 to the existing ceiling base and attaching the field edge receiving fixture 6 will be described in detail with reference to FIG. As shown in this figure, a field edge receiver 3 supported via a field edge hanger 31 between the suspension bolts 2, a field edge 5 attached to the field edge receiver 3 via a field edge mounting bracket 51, In the existing ceiling base including the ceiling panel 7 screwed to the edge 5, there is only a space for the height width (19 mm) of the field edge 5 between the field edge receiver 3 and the ceiling panel 7, Since it is difficult to perform the screwing operation of the fixing bolt 613 from the lower side, when the field edge receiving fixture 6 is attached to the suspension bolt 2 added to the frame ceiling portion 1, the field edge receiving fixture 6 is fixed to the top and bottom. Are used in reverse. In other words, the field edge receiving fixture 6 in this embodiment can be attached to the lower end side of the suspension bolt 2 in a state where there is no difference in the vertical direction. The edge receiving fitting engaging portion 61 and the edge receiving engagement are obtained with the tip of the suspension bolt 2 into which the upper nut 21 is screwed inserted into the suspension bolt insertion hole 62a. The piece 622 is engaged with the upper surface of the field receiver 3 in an inclined manner, and the upper surface piece 611 is rotated and pushed into the lower surface side of the existing field receiver 3 to be inserted and set. Thereafter, the base end portion of the suspension bolt 2 is fixed to the housing ceiling portion 1 with an anchor or the like, and the upper and lower nuts 21 are tightened and positioned and fixed, and the suspension bolt 2 is attached to the existing field edge receiver 3. If the field edge receiving fixtures 6 are sequentially attached in the same manner and the fixing bolts 613 are tightened and fixed, the expansion work is completed.

  In the embodiment of the present invention configured as described above, a field edge receiving fixture 6 is fixed to the lower end side of the suspension bolt 2 on an existing or new ceiling base. The field edge receiving fixture 3 according to the present invention is assembled and fixed to the field edge receiver 3. The field edge receiving metal fitting 6 according to the present invention is connected to the field edge 6 a on the side surface of the field edge receiver 3. The upper edge piece 611 and the lower face piece 612 which are bent so that the edge receiver 3 can be externally fitted are provided, and the field edge receiver fitting fixing portion 61 formed in a U-shape when viewed from the side, and the suspension bolt 2 on the other side. And a suspension bolt fixing portion 62 that is bent in an L shape against the edge receiving fitting fixing portion 61 so that the nut is fixed by inserting the lower end side of the bolt into the suspension bolt insertion hole 62a. The side edge receiving and fixing portion 61 is arranged side by side, and the upper surface piece 611 and the lower surface piece 12 is extended to be wider than the lateral (thickness) width of the field edge receiver 3, and the field edge receiver 3 that is externally fitted at the front end of the field edge holder 3 is clamped and fixed by bolting, while the suspension bolt is fixed. The portion 62 is arranged in the side region that is the height width of the field receiver 3 with the nuts 21 and 21 that are screwed and fixed to the suspension bolt 2 across the upper and lower surfaces of the suspension bolt fixing piece 621. It is configured to be configurable.

  If comprised in this way, although it is a metal fitting for attaching the field edge receiver 3 to the suspension bolt 2, since the field edge receiving fitting fixing part 61 and the suspension bolt fixing part 62 are arranged in parallel, Compared to the conventional one in which both are arranged in series, not only can the height width be shortened, but the upper and lower sides of the suspension bolt 2 are screwed and fixed with the suspension bolt fixing portion 62 interposed therebetween. The nuts 21 and 21 can be disposed close to each other so as to face the width inner surface area that is the side surface of the field receiver 3, and the upper nut 21 is disposed so as not to protrude from the upper surface of the field receiver 3. Not only can the top surface of the edge receiver 3 be installed close to the frame ceiling part 1, but also a double nut and a vibration-proof rubber 22 can be arranged in the surface area, and the ceiling base structure with a narrow ceiling space can be provided. But, of course, it is hung on the existing ceiling Even when additional construction bolt 2, can be the lower end of the hanging bolts 2 in the absence of vertical freely difference, to fix the field edge receiving 3 have the same workability as a conventional tandem type.

Moreover, the parallel strength structure in which the suspension bolt fixing part 62 is integrated with the field edge receiving fitting fixing part 61 via the side piece 6a can increase the rigidity strength of the metal fitting itself, and the support receiver of the field edge receiver 3 The surface area is inevitably wide, and when subjected to vibration such as an earthquake, the corner portion of the suspension bolt fixing portion 62 (the suspension bolt fixing piece 621) is coupled to the field receiver 3 in combination with the parallel structure. The upper and lower nuts 21, 21, the side piece 6 a and the spacer 8 of the suspension bolt 2 are used as tilt restricting means for directly or indirectly abutting against the side surface of the field edge receiver 3. Therefore, the side surface of the field receiver 3 can be made to function as a tilt restricting surface that restricts the suspension bolt fixing portion 62 from being greatly expanded and deformed.
As a result, the amplification of vibration due to the resonance action of the suspension bolt fixing piece 621 can be suppressed, and the expansion deformation extending in a square shape can be prevented, which is compared with that of the conventional vertical-type field edge receiving hanger 31. As a result, the seismic strength and seismic performance can be dramatically improved, and the hanging position of the suspension bolt 2 can be suitably maintained over a long period of time, and the weight of the entire ceiling can be firmly supported and suspended well. The state can be maintained permanently.

  Further, the suspension bolt fixing portion 61 has a lower portion of the side edge piece 6a together with the lower surface piece 612 of the field edge receiving fitting fixing portion 61 so as to prevent the field edge receiving portion 3 fitted on the field edge receiving fitting fixing portion 61 from coming off. Since the side edge receiving engagement piece 622 is formed so that the side edge is bent and folded back so as to engage with the front end of the bottom edge receiver 3, In the state where it is engaged, it can be temporarily assembled by inserting and setting it while pushing the upper surface side of the field edge receiver 3 toward the upper surface piece 611 side. Moreover, the field edge receiving engagement piece 622 receives and firmly supports the vibration load together with the fixing bolt 613 when the field edge receiver 3 receives a vibration such as an earthquake and receives vibration in the longitudinal direction. Therefore, it is possible to prevent the field edge receiver 3 from rattling or misalignment.

  Furthermore, since the field edge receiving fixture 6 is configured to be able to fix the field edge receiver 3 in a state where there is no difference in the vertical direction, the field edge receiving attachment 6 can be alternately arranged upside down. The suspension bolt fixing part 62 is fixed to the nut 21 at an eccentric position opposite to the field edge receiving and fixing part 61 (field edge receiver 3), and the ceiling load is placed on the upper side of the field edge receiver 3 toward the fixing bolt 613. The state applied in the tilting direction can be shared and supported by the field edge receiving engagement piece 622, and by virtue of the joint action of both, the vibration load is firmly received in a state of being distributed in the longitudinal direction to further prevent rattling and displacement. The seismic strength can be improved, and a good state in which the field edge receiver 3 is in close contact with the field edge receiver fitting fixing portion 61 can be maintained and maintained for a long period of time.

  Further, since the suspension bolt insertion hole 62a is drilled and arranged so that the peripheral surfaces of the upper and lower nuts 21 and 21 are close to the side surface of the field edge receiver 3, the suspension bolt insertion hole 62a is formed on the upper side of the suspension bolt 2. When the lower nuts 21 and 21 are brought into direct or indirect contact with the side surface of the field receiver 3, it is possible to suppress amplification of tilt due to a resonance action and the like.

  Further, since the side surface region of the field edge receiver 3 is configured to be usable as a tilt restricting surface for restricting the tilt of the suspension bolt fixing portion 62 via the tilt restricting means, the tilt restricting means is used for fixing the suspension bolt. The upper or lower nut 21, 21, or the upper or lower nut 21, 21 or the side piece 6 a or the spacer 8 interposed between the suspension bolt 2 and the field edge receiver 3 can be used.

The spacer 8 has a width that can be interposed between the suspension bolt 2 and the side piece 6a, and has a U-shaped base 81 that fits the upper and lower surfaces of the upper and lower nuts 21 and 21, and the tip side thereof. And a nut locking piece 82 that is narrower than the base 81 so that the end of the suspension bolt 2 is positioned stepwise outwardly from the outer diameter thereof, and an L-shape from the nut locking piece 82. The nut locking piece 82 is integrally formed with a gripping piece 83 bent in a shape, and the nut locking piece 82 is interposed through a bent portion 82a having a hole drilled in the tip of the base portion 81 and the stepped continuous portion. The bent portion 82 a is provided at a position behind the outer diameter of the nut 21.
With this configuration, the spacer 8 has a function of preventing the upper and lower nuts 21 and 21 from loosening or coming off when the base 81 is attached by fitting the upper and lower nuts 21 and 21, and the bent portion 82a. The gripping piece 83 is gripped by hand and bent inwardly (in the direction of the arrow in the figure), and the outer diameter of the suspension bolt 2 is positioned behind the outer diameter of the nut 21. In addition, the upper and lower nuts 21, 21, which are on the outer side, come into contact with the outer peripheral angle surface variably fixed according to an arbitrary angle, and have a function of restricting rotation by stopping and locking the nut 21. The folding operation is facilitated by providing. By providing the spacer 8 in this manner, a regulating member that indirectly regulates tilting via the spacer 8 when the side surface of the field edge receiver 3 is used as a tilting regulating surface for the expansion deformation of the suspension bolt fixing piece 621. As compared with the case where the nut 21 is directly abutted, the tilt angle with respect to the swing can be reduced, and the amplification of the tilt due to the resonance action can be suppressed.

DESCRIPTION OF SYMBOLS 1 Housing | casing ceiling part 2 Hanging bolt 21 Nut 22 Anti-vibration rubber 3 Field edge receiving 31 Field edge receiving hanger 4 Wave rest 41 Anti-rest mounting bracket 5 Field edge 5a Reverse U-shaped groove 51 Field edge mounting bracket 6 Field edge receiving fixing bracket 6a side piece 6a1 screw hole 61 edge receiving fitting fixing portion 611 upper surface piece 612 lower surface piece 61a nut hole 61b bolt insertion hole 613 fixing bolt 62 suspension bolt fixing portion 621 suspension bolt fixing piece 622 engaging piece 62a bolt insertion hole 62b screw Hole 7 Ceiling panel 8 Spacer 81 Base 82 Nut locking piece 82a Bending part 83 Holding piece 9 Screw

Claims (7)

A plurality of suspension bolts suspended from the ceiling of the chassis at a predetermined interval, a plurality of field receivers installed on the lower end side of the suspension bolt, and attached to the field receiver in a cross shape In the ceiling base including the field edge and the ceiling panel fixed to the field edge by screws,
A field edge receiving fixture for attaching the field edge receiver to the lower end side of the suspension bolt,
The field edge receiving fixture has an upper surface piece and a lower surface piece that are bent so that the field edge receiver can be externally fitted on one side through a side surface piece that faces the side surface of the field edge receiver. The edge receiving fitting fixing part formed in a U-shape in side view, and the other edge receiving fitting fitting on the other side so that the nut is fixed by inserting the lower end side of the hanging bolt into the hanging bolt insertion hole. A suspension bolt fixing part that is bent in an L shape against the fixing part, and is arranged side by side integrally.
The field edge receiving and fixing portion extends the upper surface piece and the lower surface piece so as to be wider than the lateral width of the field edge receiver, and clamps and fixes the field edge receiver externally fitted at the front end portion thereof by bolting. While configuring
The suspension bolt fixing portion is configured such that an upper nut of a nut that is screwed and fixed to the suspension bolt across the upper and lower surfaces thereof can be disposed in a side region that is the height width of the field edge receiver. A unique field edge receiving fixture.   2. The lower part of the side piece together with the lower surface piece of the field edge receiving fitting fixing part in the suspension bolt fixing part so as to prevent the field edge receiving part externally fitted to the field edge receiving fitting fixing part. A field-edge receiving fixture comprising a field-edge receiving engagement piece that is bent at a side and is folded back so as to be engaged with a tip of a lower surface of the field-edge receiver.   The field edge receiving fixture according to claim 1 or 2, wherein the field edge receiving fixture is configured to be capable of fixing the field edge receiver in a state where there is no vertical difference.   4. The suspension bolt insertion hole according to claim 1, wherein the suspension bolt insertion hole is formed so as to be screwed and fixed with a peripheral surface of the upper and lower nuts close to a side surface of the field edge receiver. Field edge receiving fixture.   5. The method according to claim 1, wherein the side region of the field receiver is configured to be usable as a tilt regulating surface that regulates the tilt of the suspension bolt fixing portion via a tilt regulating means. Field edge receiving fixture.   In Claim 5, the said inclination control means is a side piece or spacer interposed between the upper or lower nut for hanging bolt fixation, or this upper or lower nut or suspension bolt, and a field edge receiver. A field edge receiving fixture.   In Claim 6, the said spacer has the width | variety which can be interposed between a suspending bolt and the said side piece, respectively, and the base part of a U-shape in a side view so that the upper and lower surfaces of an upper and lower nut may be fitted, and the front end side, respectively A nut locking piece that is extended and is narrower than the base so that the suspension bolt side end is positioned in a step shape outward from the outer diameter, and is bent in an L shape from the nut locking piece And the nut locking piece is formed through a bent portion having a hole drilled in the stepped continuous portion with the tip of the base, and the bent portion Is a field edge receiving fixture, wherein the bent position is provided at a position rearward of the outer diameter of the nut.