JP2009074305A - Fixing metal fitting for bracing backing material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve workability of ceiling backing and to maintain the fixed strength of a bracing backing material to a hanging bolt over a long period of time. <P>SOLUTION: The fixing metal fitting 6 for fixing the bracing backing material 3 to the hanging bolt 2 integrally includes bracing backing material fixing parts 6a fixed to the bracing backing material 3, and a hanging bolt fixing part 6b fixed to the hanging bolt 2. When the bracing backing material fixing parts 6a are fitted onto the bracing backing material 3 while the hanging bolt fixing part 6b being fitted onto the hanging bolt 2, the hanging bolt 2 is clamped between the hanging bolt fixing part 6b and the side face part of the bracing backing material 3, and this clamped state is maintained by folded pieces 6c to temporarily fix the bracing backing material 3 to the hanging bolt 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a fixture for fixing a base material for steadying that is used in the construction of a ceiling base, and in particular, between a plurality of suspension bolts suspended at a predetermined interval from a housing ceiling and a plurality of suspension bolts. The present invention relates to a fixing bracket used for fixing a base material for steadying to a suspension bolt in the construction of a ceiling base including a base material for steadying that has a U-shaped cross section.

  As a conventional ceiling structure, a conventional ceiling or a system ceiling is known (for example, see Patent Document 1). The conventional ceiling has a plurality of field receivers (channels) supported by the frame ceiling through suspension bolts, and a plurality of fields supported by the field receivers through joint members (W clips, S clips, etc.). It is composed of an edge (W bar, S bar, etc.) and a ceiling panel screwed to the field edge. Further, the system ceiling includes a plurality of field receivers supported by the frame ceiling part via suspension bolts, a plurality of T bars supported by the field receivers via joint members (such as T-bar hangers), and a lattice. It is comprised from the ceiling panel mounted on the T-bar assembled in the shape.

  By the way, in such a ceiling structure, in order to maintain the space | interval of a suspension bolt, it is preferable to construct the base material for steadying between several suspension bolts. In particular, in a ceiling base using a long suspension bolt, since the swing width of the suspension bolt is large, it is essential to prevent the suspension bolt from swinging with a base material for steadying. And as a base material for steadying, as shown in patent document 1, the thing of the beam type laid horizontally between several suspension bolts, or as shown in patent document 2, a plurality of suspension bolts A bracing type that is installed in a slanting manner in between is known.

  In the construction of the ceiling foundation including the steady rest base material, a fixing bracket for fixing the steady rest base material to the suspension bolt is used. This fixing bracket is provided with a steady-state base material fixing portion fixed to a steady-state base material and a suspension bolt fixing portion fixed to a suspension bolt. Since the base material fixing part and the suspension bolt fixing part are made of different members, the number of parts required for fixing at one place increases, resulting in high costs. In addition, since a large number of fasteners (bolts, nuts, screws, etc.) are used for fixing one place, it takes a considerable amount of time to fix only one place, resulting in poor construction efficiency. In addition, the fixing bracket shown in Patent Document 2 is based on the premise that the steadying base material is a long bolt material, and is applicable when the steadying base material is a channel material having a U-shaped cross section. It was difficult.

  Therefore, as shown in FIG. 6, there has been proposed a fixing bracket integrally including a steadying base material fixing part fixed to the steadying base material and a suspension bolt fixing part fixed to the suspension bolt. The fixing metal fitting 100 is formed in a U-shape when viewed from the side, and has a suspension bolt fixing portion including a notch groove 101 at the tip of the upper surface portion and the lower surface portion. When the steadying base material 3 is fixed to the suspension bolt 2 using the fixing bracket 100, the fixing bracket 100 is fitted on the steadying base material 3 as shown in FIG. The suspension bolt 2 is inserted into the upper and lower cutout grooves 101 formed in the above. Here, when the screw 103 is screwed into the screw hole 102 formed in the side surface portion of the fixing bracket 100, the steadying base material 3 and the suspension bolt 2 are attracted and fixed to each other. In this case, the steadying base material fixing part is provided with the steadying base material fixing part fixed to the steadying base material 3 and the suspension bolt fixing part fixed to the suspension bolt 2. By integrating the suspension bolt fixing portion with the suspension bolt, not only can the number of parts be reduced and the cost can be reduced, but also it can be suitably used for fixing the steady rest base material 3 made of a channel material.

However, when constructing the ceiling foundation using the fixing bracket 100 shown in FIG. 6, the installer needs to support the steadying foundation material 3 at a predetermined height until the screw 103 is completely screwed. Therefore, there is a problem that workability is inferior. Further, since the fixing strength of the steady rest base material 3 with respect to the suspension bolt 2 is entirely dependent on the screwing force of the screw 103, when the screw 103 is loosened, the steady rest base material 3 is misaligned with respect to the suspension bolt 2. In addition, the strength of the ceiling base may be reduced.

JP 2006-9495 A JP 2002-339918 A

  The present invention was devised to eliminate the above-mentioned problems, and the number of parts can be reduced and the cost can be reduced by integrating the base material fixing part for steadying and the suspension bolt fixing part. In addition to being able to be used suitably for fixing the base material for steadying made of channel material, it is possible to temporarily fix the base material for steadying to the suspension bolt before screw fixing, An object of the present invention is to provide a fixing member for a steadying base material that can not only improve the workability of the steadying material but also can maintain the fixing strength of the steadying base material to the suspension bolt over a long period of time.

  In order to solve the above-mentioned problems, a fixing bracket for a steady rest base material according to the present invention is installed between a plurality of suspension bolts suspended at a predetermined distance from a housing ceiling and a plurality of suspension bolts. A fixing bracket used for fixing the steady rest base material to the suspension bolt in the construction of a ceiling foundation including a U-shaped steady rest base material, the securing bracket being a steady rest base A steady-state base material fixing portion fixed to the material and a suspension bolt fixing portion fixed to the suspension bolt are integrally provided, and the steady-state base material fixing portion can be externally fitted to the steady-state base material. It is formed in a U-shape when viewed from the side, and has a folded piece that prevents the anti-stabilizing base material from slipping off at the tip of the upper surface portion, and the suspension bolt fixing portion is a base material fixing portion for anti-sway A hanging bolt formed in a U-shape in plan view on the side surface of The outer periphery has an engaging claw that engages with the thread of the suspension bolt, and the base material for steadying is fixed with the suspension bolt fixing portion being externally fitted to the suspension bolt. When the part is externally fitted to the steady rest base material, the suspension bolt is sandwiched between the suspension bolt fixing portion and the side surface portion of the steady rest base material, and this clamping state is maintained by the folded piece. The steady-state base material can be temporarily fixed to the suspension bolt, and the temporary-fixed steady-state base material is screw-fixed to the steady-state base material fixing portion.

  According to the present invention configured as described above, the integration of the steady-state base material fixing portion and the suspension bolt fixing portion enables not only a reduction in the number of parts and cost reduction, but also the deflection of the channel material. While it can be suitably used for fixing the base material for fixing, it is possible to temporarily fix the base material for steadying to the suspension bolt before fixing the screw, thereby improving the workability of the ceiling base. Not only can the fixing strength of the steady rest base material with respect to the suspension bolt be maintained for a long period of time.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A steadying base material fixing bracket exemplified by a preferred embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic side view 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 (long bolt members) 2 suspended from the housing ceiling 1 at a predetermined interval, and a steady rest foundation constructed between the plurality of suspension bolts 2. A material (channel material) 3 and a field edge receiver (channel material) 5 supported by a lower end portion of the suspension bolt 2 via a hanger 4 are included.

  The steady rest base material 3 of the present embodiment is made of a channel material having a U-shaped cross section, and is a beam type that is laid horizontally between a plurality of suspension bolts 2. 1 is fixed to the suspension bolt 2 by using the fixture 6 according to the embodiment of the present invention.

  2A, 2B, 2C, and 2D are a front view, a plan view, a side view, and an enlarged A sectional view of a fixing bracket according to an embodiment of the present invention. As shown in these drawings, the fixing bracket 6 includes a steadying base material fixing part 6 a that is fixed to the steadying base material 3 and a suspension bolt fixing part 6 b that is fixed to the suspension bolt 2. . In the fixing bracket 6 of the present invention, the steadying base material fixing portion 6a and the suspension bolt fixing portion 6b are integrated without being separated from each other. For example, the fixing bracket 6 of the present embodiment is obtained by bending a single metal plate formed in a predetermined shape into a U-shape as viewed from the side to form a steady-state base material fixing portion 6a. A suspension bolt fixing portion 6b is formed on a side surface portion of the base material fixing portion 6a.

  The steady-state base material fixing portion 6a is formed in a U-shape in a side view that can be externally fitted to the steady-state base material 3, and the top-end tip of the steady-state base material 3 is removed. A folded piece 6c to be stopped is formed, and the lower surface portion 6a ′ is longer than the thickness width of the steady rest base material 3 and is slightly bent inwardly in a taper shape so that the tip end portion is expanded outward and bent. Has been. The lower surface portion 6a 'is designed to absorb a manufacturing error (generally about ± 0.5 mm) when a steel channel material is used as the steady rest base material 3. It is pressed against the base material 3 for use. In the case where the steady rest base material 3 is made of aluminum that does not need to consider manufacturing errors, it is formed by bending the lower surface portion 6a 'at a right angle like the upper surface portion and shortening the length. You may do it. Further, two screw holes 6d are formed in the side surface portion of the steady rest base material fixing portion 6a. By screwing the screw 7 into the steady rest base material 3 through the screw hole 6d, the steady rest base material fixing portion 6a and the steady rest base material 3 are fixed.

  The suspension bolt fixing portion 6 b is formed in a U shape in a plan view on the side surface portion of the steadying base material fixing portion 6 a and can be fitted onto the suspension bolt 2. Further, an engaging claw 6e that engages with the thread of the suspension bolt 2 is formed on the inner peripheral portion of the suspension bolt fixing portion 6b formed in a U shape in plan view. As shown in FIG. 2D, the engaging claw 6e of the present embodiment has a side surface shape corresponding to two pitches of the thread and cuts and raises at two places on the upper and lower sides of the suspension bolt fixing portion 6b. It is formed in a shape.

  Next, a usage example of the fixing bracket 6 according to the present embodiment will be described. FIG. 3 is a perspective view showing a usage example (temporary fixing state) of the fixing bracket according to the embodiment of the present invention, and FIG. 4 is a cross-sectional view showing a usage example (temporary fixing state) of the fixing bracket according to the embodiment of the present invention. FIG. 5 is a perspective view showing an example of use (fixed state) of the fixture according to the embodiment of the present invention. When fixing the steady rest base material 3 to the suspension bolt 2 using the fixing bracket 6 of the present embodiment, first, the suspension bolt fixing portion 6b of the fixing bracket 6 is externally fitted to the suspension bolt 2 from one side. . At this time, the engaging claw 6e formed on the inner peripheral portion of the suspension bolt fixing portion 6b is engaged with the thread of the suspension bolt 2, and the vertical position of the fixing bracket 6 with respect to the suspension bolt 2 is determined. Next, the steadying base material fixing portion 6 a of the fixture 6 is externally fitted to the steadying base material 3. At this time, when the folded piece 6c of the steady-state base material fixing portion 6a is engaged with the top end of the top surface portion of the steady-state base material 3 and is struck against the impact of the bottom surface portion 6a ′, the bottom surface portion 6a ′ is formed. The steady rest base material 3 is prevented from coming off while being elastically engaged with the lower surface of the steady rest base material 3.

  If it does in this way, since the suspension bolt 2 is clamped between the suspension bolt fixing | fixed part 6b and the side part of the base material 3 for steadying, the engaging claw 6e of the suspension bolt fixing | fixed part 6b and the thread of the suspension bolt 2 In addition, the base material 3 for steadying is kept from slipping out in a state in which the attachment position is prevented from being displaced between the folded piece 6c and the lower surface portion 6a ′. This makes it possible to temporarily fix the steady rest base material 3 to the suspension bolt 2. Then, when the temporary assembly and fixing are completed at all locations, the screw 7 is attached to the steady rest base material 3 through the screw holes 6d formed in the steady rest base material fixing portion 6a while performing final positioning adjustment. Is fixed to the steady rest base material 3.

  In the embodiment of the present invention configured as described above, a plurality of suspension bolts 2 hung from the housing ceiling portion 1 with a predetermined interval, and a U-shaped cross section constructed between the plurality of suspension bolts 2. In the construction of the ceiling foundation including the steady rest base material 3, the securing bracket 6 is used for fixing the steady rest base material 3 to the suspension bolt 2. Since the base material fixing portion 6a for the steady rest fixed to the base material 3 for the steady rest and the suspension bolt fixing portion 6b fixed to the suspension bolt 2 are integrally provided, the base material fixing portion 6a for the steady rest is provided. Compared with the case where the suspension bolt fixing part 6b is formed of a separate member, the number of parts can be reduced and the cost can be reduced.

  Further, the steady-state base material fixing portion 6a is formed in a U-shape in a side view that can be externally fitted to the steady-state base material 3, and is attached to the top end of the top surface portion at the top end. The suspension bolt fixing portion 6b is formed in a U-shape in a plan view on the side surface of the base material fixing portion 6a for steadying and is externally fitted to the suspension bolt 2 and has an inner periphery. Since the portion has an engaging claw 6e that engages with the thread of the suspension bolt 2, the steady-state base material fixing portion 6a with the suspension bolt fixing portion 6b fitted on the suspension bolt 2 is provided. Is attached to the steady rest base material 3, the suspension bolt 2 is sandwiched between the suspension bolt fixing portion 6b and the side surface portion of the steady rest base material 3, and this sandwiched state is maintained by the folded piece 6c. To temporarily fix the steady rest base material 3 to the suspension bolt 2 It can become. Therefore, since it is not necessary for the installer to support the steady rest base material 3 at a predetermined height until the screw 7 is screwed in, the workability can be greatly improved.

  Further, the steady-state base material fixing portion 6a faces the bottom surface portion 6a ′ toward the top surface side (inside) so that the bottom surface portion 6a ′ can be struck and engaged with the steady-state base material 3 against impact. In the state where the lower surface portion 6a 'is elastically engaged with the lower surface of the anti-stabilization base material 3 which is formed by being inclined, the temporarily fixed state by the folded piece 3c and the suspension bolt fixing portion 6b is further removed. It is configured to stop and hold. For this reason, due to manufacturing errors, the engagement between the thread of the suspension bolt 2 and the engagement claw 6e is loosened or disengaged over a part or almost the entire length of the steady rest base material 3, and the folded piece. Even if it is not possible to maintain a reliable clamping state only by 6c and the suspension bolt fixing part 6b, the steady-state base material 3 is obtained by the engagement of the folded piece 6c and the elastic force of the lower surface part 6a '. Can be firmly fixed and temporarily fixed without inadvertent misalignment.

  Further, since the lower surface portion 6a ′ is longer than the thickness width of the steady rest base material 3 and is bent so that its tip end is spread outward, it is temporarily fixed to the steady rest base material 3. In this case, as shown in FIG. 4, the lower surface portion 6a 'protrudes from the lower surface tip of the steady rest base material 3 and is elastically engaged with the tip corner portion on the line. It can be.

  Further, even in the state of being permanently fixed with the screws 7, the engaging forces of the folded pieces 6c, the engaging claws 6e, and the lower surface portion 6a ′ function effectively, so that the dependence of the fixing strength on the screws 7 is reduced. be able to. As a result, even if the screw 7 is loosened, the steadying base material 3 is prevented from being displaced with respect to the suspension bolt 2, and the fixing strength of the steadying base material 3 with respect to the suspension bolt 2 is maintained for a long time. be able to.

It is a schematic side view of the ceiling foundation which concerns on embodiment of this invention. (A), (B), (C), (D) is the front view, top view, side view, and A section enlarged sectional view of the fixing metal fitting concerning the embodiment of the present invention. It is a perspective view which shows the usage example (temporarily fixed state) of the fixing metal fitting which concerns on embodiment of this invention. It is sectional drawing which shows the usage example (temporarily fixed state) of the fixing metal fitting which concerns on embodiment of this invention. It is a perspective view which shows the usage example (fixed state) of the fixing metal fitting which concerns on embodiment of this invention. It is a perspective view which shows the usage example (fixed state) of the fixture which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing | casing ceiling part 2 Suspension bolt 3 Stabilizing base material 4 Hanger 5 Field edge receiver 6 Fixing bracket 6a Stabilizing base material fixing part 6b Hanging bolt fixing part 6c Folding piece 6d Screw hole 6e Engaging claw 7 Screw 100 Fixing metal fitting 101 Notch groove 102 Screw hole 103 Screw

Claims (2)

In the construction of a ceiling foundation including a plurality of suspension bolts suspended from the ceiling of the frame at a predetermined interval and a base material for steadying with a U-shaped cross section laid between the plurality of suspension bolts A fixing bracket used to fix the base material for suspension to the suspension bolt,
The fixing bracket is integrally provided with a steady rest base material fixing portion fixed to the steady rest base material and a suspension bolt fixing portion fixed to the suspension bolt.
The steady-state base material fixing portion is formed in a U-shape in a side view that can be externally fitted to the steady-state base material, and the externally-fitted steady-state base material is prevented from coming off at the tip of the upper surface portion. Have folded pieces,
The suspension bolt fixing portion is formed in a U shape in a plan view on the side surface portion of the steady rest base material fixing portion and is externally fitted to the suspension bolt, and the inner peripheral portion is engaged with a thread of the suspension bolt. Has an engaging claw,
When the suspension bolt fixing portion is externally fitted to the suspension bolt and the steady rest base material fixing portion is externally fitted to the steady rest base material, the suspension bolt fixing portion and the side surface portion of the steady rest base material By holding the suspension bolt between the two, and maintaining this sandwiched state with the folded piece, the steady-state base material can be temporarily fixed to the suspension bolt, and the steady-state steady-state base material Fixing bracket for base material for steadying, characterized in that screw is fixed to the base material fixing part for steadying.   The steady-state base material fixing portion is formed by inclining the bottom surface thereof toward the top surface side so as to be able to strike and engage against the steady-state base material against impact. A fixing bracket for a steady rest base material, characterized in that the temporary fixing state is further retained so as to prevent slipping in a state in which the portion is elastically engaged with the lower surface of the outer fit rest base material.