JP2013100704A - Structure for fixing ceiling joist - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for fixing a ceiling joist, which allows a ceiling joist to be easily and efficiently fixed to a ceiling joist receiving member in a rattle-free state, and maintains the ceiling joist receiving member and the ceiling joist in the firmly fixed state even when a large shaking force is applied due to earthquake or the like, so as to reliably prevent a ceiling part from being damaged or from accidentally falling.SOLUTION: A ceiling joist 2 having an upward groove opening 20 is fixed to a ceiling joist receiving member 1 having a lateral groove opening through a clip 3 formed of a pair of clip fittings 30. Each of the clip fittings 30 includes a vertical base plate part having engaging protrusions 32 at both of the right and left sides of the lower end, a ceiling joist receiving member engaging part 33 jutting backward from the top edge of the vertical base plate part, and a screw fastening projection piece 34 projecting forward from one side of the right and left sides of the vertical base plate part. A straddling and fitting part 36 is arranged between the screw fastening projection piece 34 and the vertical base plate so as to straddle across a lip part 21 of the ceiling joist 2. Each of the engaging protrusions 32 engages with the rear side of the lip part 21 of the ceiling joist 2, and the ceiling joist receiving part 1 is pinched from both sides with the pair of clip fittings 30 having rear faces opposite to each other.

Description

  The present invention comprises a grooved material with a lip that is vertically arranged with a groove opening facing upward on the lower side of a field receiver made of a grooved material that is horizontally arranged with the groove opening facing sideways on the building ceiling base. The present invention relates to a field edge mounting structure for mounting a field edge.

  In general, in a ceiling base structure of a building, for example, as shown in FIG. The edge receiver 1 made of a groove-shaped material with the groove opening 10 turned sideways is supported horizontally by a substantially upward open U-shaped hanger fitting H attached to the lower end of the groove, and the groove opening 20 faces upward on the lower side thereof. A field edge 2 made of a grooved member with a lip arranged orthogonally is suspended on the field edge receiver 1 via a clip 8. The clip 8 in this case is punched and bent from a single metal plate, and the engagement protrusions 82 and 82 provided on the left and right sides of the lower end portion of the vertical substrate portion 81 are provided with the lip portion 21 of the field edge 2. 21 is engaged with the rear surface side of the vertical board portion 81, and a hook portion 83 having a downward open U-shape provided at the upper end portion of the vertical substrate portion 81 is hooked on the field receiver 1. P is a ceiling panel screwed to the lower surface side of the field edge 2. In addition, when the lower surface at the side of the building frame is constituted by a deck plate, the suspension bolt B is usually screwed at the upper end portion to a suspension fitting attached to the groove portion of the deck plate.

  In the ceiling base structure shown in the figure, however, the field edge receiver 1 and the field edge 2 are separated from each other, but the field edge is in close contact with the field edge receiver particularly for the purpose of preventing rattling as a wind-resistant ceiling foundation. In order to suspend and support, the hook part of the clip is bent at the time of suspending and is hooked on the edge receiver (for example, Patent Documents 1 and 2). In addition, in order to reinforce the engagement of the clip having a folding hook portion with respect to the field edge side, two pairs of left and right engaging protrusions are provided on the lower end portion of the vertical substrate portion (Patent Document 3). Further, as shown in FIGS. 8 (a) and 8 (b), the clip 9 is composed of a pair of clip fittings 90, 90, and the engaging projections 91, 91 at the lower end are respectively engaged with the lip portions 21, 21 of the field edge 2. With the clip metal fittings 90, 90 joined together, the edge receiver 1 is sandwiched from both sides, and the L-shaped cross-section engagement step portions 92, 92 at the upper ends of the two clip metal fittings 90, 90 are the upper part of the field receiver 1. It is also known that both the clip metal fittings 90, 90 are fastened and fixed by bolts 93 and nuts 94 at the opposing portions of the engagement step portions 92, 92 while engaging with the flange 1a (FIG. 8 of Patent Document 3). ).

Japanese Patent Laid-Open No. 08-338100 JP 2007-247217 A JP 2004-131928 A

  However, as a clip, in the ceiling foundation structure using the above-mentioned conventional folding hook part, the one having two left and right engaging projections as in the above-mentioned conventional proposal, the one comprising a pair of clip metal fittings, etc. Concerns that, when a large shake due to an earthquake or the like is applied, a swinging motion that twists mutually between the field receiver and the field edge causes the clip to come off the field edge and cause the ceiling to break or fall. was there.

  In view of the above circumstances, the present invention can be installed easily and efficiently in a state where the field edge is not rattled with respect to the field edge receiver as a field edge mounting structure. It is an object of the present invention to provide a device capable of maintaining a firm fixed state between the field edge receiver and the field edge even when added, and reliably preventing the destruction of the ceiling and the fall accident.

  If the means for achieving the above-mentioned object is shown with reference numerals in the drawings, the invention of claim 1 is a field comprising a groove-shaped member horizontally arranged with a groove opening 10 facing sideways in a building ceiling foundation. A field edge mounting structure for attaching a field edge 2 made of a grooved member with a lip that is arranged perpendicularly to the edge receiver 1 with the groove opening 20 facing upward on the lower side thereof via a clip 3 at the intersection of both 1 and 2 The clip 3 is composed of a pair of independent clip fittings 30, 30, and each clip fitting 30 is engaged with the back side of the lip portions 21, 21 of the field edge 2 on the left and right sides of the lower end portion, respectively. A vertical substrate portion 31 provided with joint protrusions 32, a edge receiving latch portion 33 projecting rearward from the upper end of the vertical substrate portion 31, and bent in an L shape from the left and right sides of the vertical substrate portion 31. And a screw-fixing protrusion 34 protruding forward In addition, a screw insertion hole 35 is formed in the screw fixing protrusion 34, and a straddling portion 36 is formed between the screw fixing protrusion 34 and the vertical substrate portion 31 so as to straddle the lip portion 21 of the field edge 1. There are provided coupling means (bolts 4 and nuts 5) for coupling the two clip metal fittings 30 and 30 to each other at the extended portion 37 from the field edge receiving / holding portion 33. On the upper flange 1a of the field receiver 1 in such a manner that the field receiver 1 is sandwiched from both sides by a pair of clip metal fittings 30 and 30 that are engaged with the rear surfaces of the lip portions 21 and 21 and face each other at the rear surfaces. Both the clip metal fittings 30 and 30 are engaged with each other by engaging the edge receiving and engaging portions 33 and 33, and the two clip metal fittings 30 and 30 are connected to each other by the connecting means 4 and 5. Each clip metal fitting 30 abutted on the outer surface side It becomes configured to screwed to the side wall 2a of the scan stopping projecting tabs 34 through the screw insertion hole 35.

  According to a second aspect of the present invention, in the field edge mounting structure according to the first aspect, the horizontal edge receiving latching portion 33 of each clip fitting 30 is narrower than a half width of the upper flange 1a of the field edge receiver 1. The extending portion 37 is formed of an upright piece that rises from the end edge of the field edge receiving / holding portion 33, and the coupling means 4, 5 connect the extending portions 37, 37 of the two clip metal members 30, 30 to each other. It is configured to be screwed.

  According to a third aspect of the present invention, in the field edge mounting structure according to the first or second aspect, the lower edge portion including the engaging protrusions 32, 32 of the vertical base plate portion 31 of each clip metal fitting 30 is bent rearward to reinforce the flange. The portion 38 is formed.

  Next, the effects of the present invention will be shown with reference numerals in the drawings. In the field edge mounting structure according to the first aspect of the present invention, the clip 3 for attaching the field edge 2 to the field edge receiver 1 is composed of a pair of clip fittings 30 and 30, and the engaging protrusions 32 and 32 are respectively connected to the field edge. 2 is engaged with the back side of the lip portions 21 and 21, and the clip brackets 30 and 30 facing each other at the rear surfaces sandwich the field receiver 1 from both sides to the upper flange 1a of the field receiver 1 Both edge fittings 33 and 33 of both clip metal fittings 30 and 30 are engaged, and both clip metal fittings 30 and 30 are coupled to each other by coupling means (bolts 4 and nuts 5). Screw fixing projections 34 of each clip metal fitting 30 abutted on the outer surface sides of 2a and 2a are screwed to the side wall 2a through screw insertion holes 35, respectively. Therefore, according to this field edge mounting structure, the field edge receiver 1 and the field edge 2 can be easily coupled and fixed in a state free of rattling via the clip 3, and both the clip fittings 30, to which the clip 3 is coupled, Since 30 is screwed to both side wall portions 2a and 2b of the field edge 2 with the field edge receiver 1 sandwiched from both sides, the field edge receiver 1 can be applied even if a large shaking is applied after installation. A firm fixed state between the rim and the field edge 2 is maintained, so that the destruction of the ceiling and the fall accident can be reliably prevented.

  According to the second aspect of the present invention, the field edge receiving / holding portion 33 of each clip metal fitting 30 is formed of a horizontal piece narrower than a half width of the upper flange 1a of the field edge receiver 1, and the extending portion 37 is provided. Since it consists of the upright piece which stands up from the edge of this field edge receiving latching part 33, and it is the structure which screws together the extension parts 37 and 37 which both clip metal fittings 30 and 30 oppose, There is no need for a bending operation at the time of connection, so that the installation work can be performed efficiently and easily. Also, when removing the field edge 2 from the field edge receiver 1 for renovation or repair of the ceiling part, 30 is not necessary to bend back and is excellent in workability, and both clip metal fittings 30 and 30 can be reused in a state without fatigue deterioration due to bending back.

  According to the invention of claim 3, since the lower edge portion including both the engaging projections 32, 32 of the vertical base plate portion 31 of each clip metal fitting 30 forms the reinforcing flange portion 38, the field by the both engaging protrusions 32, 32 is provided. Although the bearing strength of the edge 2 is increased, the reinforcing flange portion 38 protrudes in the direction opposite to the screw-fixing projection piece 34, so that the screw-fixing of the screw-fixing projection piece 34 is not hindered.

It is a perspective view which shows the field edge attachment structure which concerns on one Embodiment of this invention. It is a perspective view which shows the clip metal fitting of the clip used for the same edge mounting structure. It is a top view which shows the expansion | deployment state before the bending process of a clip metal fitting. The fitting operation to the field edge of the clip metal fitting is shown, (a) is a cross-sectional plan view in a state where the clip metal fitting is fitted obliquely, (b) is a cross-sectional plan view after the clip metal fitting is fitted. It is a vertical side view of the principal part of the same edge mounting structure. It is a vertical front view of the principal part of the same edge mounting structure. It is a perspective view which shows an example of the ceiling base structure using the conventional clip. The field edge mounting structure using the other conventional clip is shown, (a) is a longitudinal front view, (b) is a longitudinal side view.

  An embodiment of a field edge mounting structure according to the present invention will be specifically described below with reference to the drawings. Note that the same reference numerals as those in the conventional configuration shown in FIGS. 7 and 8 are attached to the field edge and the field edge receiver in this embodiment.

  In this field edge mounting structure, as shown in FIG. 1, it is orthogonal with the groove opening 20 facing upward on the lower side of the field edge receiving member 1 made of a groove-shaped material horizontally disposed with the groove opening 10 facing sideways. A field edge 2 made of a grooved material with a lip to be arranged is attached via a clip 3 at the intersection of both 1 and 2, but a pair of clip metal fittings 30 having the same form and size independent from each other, 30. In addition, the field edge receiver 1 is suspended and supported via a hanger metal fitting H on a suspension bolt B hanging from the ceiling of the building as shown in FIG. Further, the field edge 2 exemplifies a so-called double type having a wide bottom wall 2a.

  As shown in FIG. 2, each clip metal fitting 30 constituting the clip 3 has a pair of engaging protrusions 32, 32 that form a pair of left and right upward hooks by notches 31 a, 31 b on the left and right sides of the lower part of the substantially rectangular vertical substrate portion 31. Are formed at the upper end of the vertical substrate portion 31 from a field edge receiving / holding portion 33 made of a horizontal piece projecting to the back side, and an upright piece rising from the edge of the field edge receiving / holding portion 33 And an extending portion 37 formed integrally with each other, and has a screw-fixing projecting piece 34 that is bent into an L shape from the left and right sides (left side in the drawing) of the vertical substrate portion 31 and protrudes forward. A straddle portion 36 is formed between the screw-fixing protrusion 34 and the vertical substrate portion 31 so as to straddle the lip portion 21 of the field edge 1, and the lower edge including both engaging protrusions 32, 32 of the vertical substrate portion 31. The portion is bent rearward to form a reinforcing flange portion 38. The central portion 31 a of the vertical substrate portion 31 bulges forward to enhance rigidity, and a screw insertion hole 35 is provided at the lower portion of the screw fixing protrusion 34, and a bolt insertion hole 37 a is provided at the center of the extending portion 37. Each is drilled.

  Such a clip metal fitting 30 is manufactured by punching a metal plate material as shown in FIG. 3 and then bending and bulging (the central portion 31 a of the vertical substrate portion 31) in the illustrated broken line portion by pressing and bending. Here, the narrowest width w1 by the notches 31a and 31b of the vertical substrate portion 31 is slightly narrower than the opening width between the lip portions 21 and 21 of the field edge 2, and the engagement protrusions 32 and 32 after bending the reinforcing flange portion 38 are formed. The width w2 between the outer ends is slightly narrower than the inner width of the field edge 2, the width w3 of each engaging projection 32 is narrower than the inner width of the lip portion 21 of the field edge 2, and the width w4 of the field edge receiving and locking part 33. Are slightly narrower than the ½ width of the upper flange 1a of the field receiver 1 and are set respectively. Also, the inner height h of the bent edge receiving latch 33 and the reinforcing flange 38 is set to be approximately equal to the value obtained by adding the thickness of the field edge 2 to the vertical width of the field receiving 1. Further, the opening width of the straddle fitting portion 36 in the clip metal fitting 30 after manufacture, that is, the distance d between the outer edge of the engaging protrusion 32 and the inner edge of the screwing protrusion 34 in FIG. It is set wider than the width.

  In order to attach the field edge 2 to the field edge receiver 1 using the clip 3 composed of the pair of clip metal parts 30, 30, first, the engagement protrusions 32 are arranged in a state where the clip metal parts 30, 30 face each other on the rear surface side. , 32 are engaged with the back side of the lip portions 21, 21 of the field edge 2. In this engagement operation, since the width w2 between the outer ends of the engagement protrusions 32, 32 is larger than the opening width between the lip portions 21, 21 of the field edge 2, as shown in FIG. The bracket 30 is positioned so that the vertical substrate portion 31 is inclined in a plan view with respect to the width direction of the field edge 2, and the straddle part 36 is positioned so as to straddle one lip part 21 from above to the inside of the field edge 2. In this state, when the clip metal fitting 30 is turned as shown by an arrow a, both engaging protrusions 32 and 32 are disposed on the back side of the lip portions 21 and 21 as shown in FIG. The screw-fixing protrusion 34 comes into contact with the outer surface side of the side wall 2a of the field edge 2.

  Thus, after fitting both the clip fittings 30 and 30 to the field edge 2, the field edge 2 is held so that the field edge receiver 1 is disposed between the both clip metal parts 30 and 30, and the upper flange 1a of the field edge receiver 1 is retained. The clip metal fittings 30, 30 are engaged with the edge receiving latches 33, 33 from both sides, so that the two clip metal fittings 30, 30 are sandwiched between the two clip metal fittings 30, 30. The bolts 4 are passed from one side to the bolt insertion holes 37a of the opposing extension portions 37, 37, and nuts 5 are screwed onto the bolts 4 from the other side and tightened. As a result, the field edge 2 is suspended from the field edge receiver 1 via the clip 3 so that the upper surface of the field edge 2 is substantially in contact with the lower surface of the lower flange 1b of the field edge receiver 1. As shown in FIG. 6, the screw-fixing protrusions 34, 34 of both clip fittings 30, 30 are screwed to the side wall portions 2 a, 2 a on both sides of the field edge 2. This screwing is to pierce and fix the side wall portion 2a of the field edge 2 with a screw 6 screwed into the screw insertion hole 35 of the screwing protrusion 34 from the outside.

  In such a field edge mounting structure, the field edge receiver 1 and the field edge 2 are easily coupled and fixed through the clip 3 so that there is no rattling, and both the clip metal fittings 30 and 30 to which the clip 3 is coupled. Are fixed to the side wall portions 2a, 2b of the field edge 2 with screws in a state where the field edge receiver 1 is firmly clamped from both sides. Therefore, when a large shake due to an earthquake or the like is applied after installation, the clip 3 can be disengaged from the field edge 2 even if the field edge receiver 1 and the field edge 2 cause a swinging motion that mutually twists. In addition, since the fixed state between the field edge receiver 1 and the field edge 2 is maintained, the destruction of the ceiling and the fall accident can be reliably prevented.

  In the present invention, as a means for connecting both the clip metal fittings 30 and 30 of the clip 3, a method of bending the extended portions 37 and 37 set to an appropriate hooking shape and connecting them together, As an protruding piece projecting from the left and right sides of the receiving latch 33, the extended portion 37 of the clip fitting 30 on one side sandwiching the field receiver 1 is hung on the vertical substrate portion 1 of the clip fitting 30 on the other side. It is also possible to adopt a method of bending and joining. However, if both clip metal fittings 30 and 30 are screwed together with the extended portions 37 and 37 at the upper ends as in the embodiment, a bending operation for coupling is not necessary, so that the installation work can be performed efficiently and easily. In addition, when removing the edge 2 from the edge holder 1 for refurbishment or repair of the ceiling, both clip fittings 30 and 30 can be easily separated and the workability is excellent. There is an advantage that 30 and 30 can be reused repeatedly without fatigue deterioration due to bending back. In the embodiment, the clip fittings 30 and 30 of the clip 3 are coupled by the bolt 4 and the nut 5, but instead of using the nut 5, the bolt insertion hole 37 a of the extending portion 37 in one clip fitting 30 is provided. A female screw hole by burring may be used.

  Further, in the embodiment, the lower edge portion including both the engaging protrusions 32, 32 of the vertical substrate portion 31 of each clip metal fitting 30 forms the reinforcing flange portion 38, whereby the field edge 2 by the both engaging protrusions 32, 32 is formed. There is an advantage that the bearing strength of is increased. Therefore, the reinforcing flange portion 38 protrudes in the opposite direction to the screw-fixing projection piece 34, so that the screw-fixing of the screw-fixing projection piece 34 is not hindered.

  On the other hand, in the field edge mounting structure of the embodiment, a wide so-called double type is illustrated as the field edge 2, but in the so-called single type whose field edge 2 is ½ width illustrated, the clip 3 Needless to say, the two clip fittings 30 and 30 having a small left and right width corresponding to the single type field edge 2 are employed. In addition, in the field edge mounting structure of the present invention, various designs other than the embodiment can be changed for the detailed configuration such as the shape of the screw-fixing projection piece 34 in the clip metal fitting 30 and the uneven configuration for enhancing the rigidity of the vertical substrate portion 31. It is.

DESCRIPTION OF SYMBOLS 1 Field edge receiving 1a Upper flange 10 Groove opening 2 Field edge 2a Side wall part 20 Groove opening 21 Lip part 3 Clip 30 Clip metal fitting 31 Vertical board | substrate part 32 Engagement protrusion 33 Field edge receiving latching part 34 Screw stop protrusion 35 Screw insertion hole 36 Stretching part 37 Extension part 38 Reinforcement flange part 4 Bolt (coupling means)
5 Nut (coupling means)
6 screws

Claims (3)

On the ceiling of the building, a field edge made of a grooved material with a lip that is vertically arranged with the groove opening facing upward on the lower side of the field edge made of a grooved material horizontally arranged with the groove opening sideways , It is a field mounting structure that is attached via a clip at the intersection of both,
The clip consists of a pair of clip metal parts independent of each other,
Each clip metal fitting has a vertical board portion provided with engagement protrusions to be engaged with the back side of the lip portion of the field edge on both the left and right sides of the lower end part, and a field edge receiver extending rearward from the upper end of the vertical board part. A locking portion, and a screw-fixing protrusion that bends in an L shape from the left and right sides of the vertical substrate portion and protrudes forward,
A screw insertion hole is formed in the screwing projection piece, and a straddling portion is formed between the screwing projection piece and the vertical substrate portion so as to straddle the lip portion of the field edge,
A coupling means for coupling the two clip fittings to each other at the extended portion from the edge receiving latching portion,
Each of the engaging protrusions is engaged with the back side of the lip portion of the field edge, and the pair of clip metal fittings facing each other at the rear surfaces sandwich the field edge receiver from both sides, and on the upper flange of the field edge receiver The clip fittings of the clip fittings are engaged with each other by engaging the clip receiving portions of the clip fittings with each other and connecting the clip fittings with each other by the coupling means. A field edge mounting structure configured to screw a stop projection piece to the side wall portion through a screw insertion hole.   The edge receiving latching portion of each clip bracket is composed of a horizontal piece narrower than the half width of the upper flange of the field receiving bracket, and the extending portion stands upright from the edge of the field receiving latching portion. 2. The field edge mounting structure according to claim 1, wherein the connection means comprises a piece, and the coupling means screws the extending portions facing each other of the two clip fittings.   The field edge mounting structure according to claim 1 or 2, wherein a lower edge portion including both engaging projections of the vertical board portion of each clip metal fitting is bent rearward to form a reinforcing flange portion.

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