JP2018031178A - Ceiling joist fitting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling joist fitting structure that maintains a ceiling joist receiving member and a 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 clip 3 is fitted at an intersection between a ceiling joist receiving member 1 made of a lip groove-shaped material and a ceiling joist 2 disposed orthogonally to the ceiling joist receiving member, and includes: a pair of engaging protrusions 4, 5 engaged on a rear surface side of right and left lip parts 2e, 2f of the ceiling joist 2; a vertical base plate part 6 abutted on an outer side of a lower lip part 1f of the ceiling joist receiving member 1; screwing side plate parts 7, 8 abutted on right and left flange parts 2c, 2d of the ceiling joist 2; a folding thickness part 9 abutted on a top edge of the lower lip part 1f of the ceiling joist receiving member 1; a folding plate part 10 folded from the top edge of the lower lip part 1f along an inner side of the lower lip part 1f, via the folding thickness part 9; a screw 12 screwed into the lower lip part 1f of the ceiling joist receiving member 1; and screws 15, 16 screwed into the right and left flange parts of the ceiling joist 2 from the screwing side plate parts 7, 8.SELECTED DRAWING: Figure 5

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 attachment device for attaching a field edge.

  In general, in a ceiling base structure of a building, for example, as shown in FIG. 10, a plurality of suspension bolts B are suspended from insert nuts N embedded in a ceiling slab S, and the suspension bolts B are suspended. A substantially upward open U-shaped hanger fitting H attached to the lower end of the frame supports the field receiver 30 made of a groove-shaped member with the groove opening 30a facing sideways, and the groove opening 31a faces upward on the lower side. A field edge 31 made of a grooved member with a lip arranged orthogonally is suspended on the field edge receiver 30 via a clip 40. The clip 40 in this case is stamped and bent from a single metal plate, and the engagement protrusions 40b and 40c provided on the left and right sides of the lower end portion of the vertical substrate portion 40a are connected to the lip portion 31b of the field edge 31. While engaging with the back surface side of 31b, the downward open U-shaped hook part 40d provided in the upper end part of this perpendicular | vertical board | substrate part 40a is hooked to the field receiver 30. As shown in FIG. P is a ceiling panel screwed to the lower surface side of the field edge 31. 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.

  Therefore, in order to suspend the field rim in close contact with the field ledge for the purpose of preventing rattling, particularly as a ceiling base due to wind resistance or earthquake, as shown in Patent Document 1, for example, Engage and engage the field edge receiving side so that the entire edge receiving area is covered with the fold, and engage the clip with the field lip on the field edge side of the clip with the engaging protrusion. By replenishing the engagement structure designed to fit together, the member provided on the field edge receiving side of the clip and the member provided on the field edge side of the clip are screwed to the field edge receiving and field edge by screws. The clip which strengthens the connection structure of both has been proposed.

JP 2013-100704 A

  However, in the invention described in Patent Document 1, the clip is used as a pair of clip metal pieces, and both clip metal pieces are covered with the lateral groove opening 30a of the field edge receiver 30, and above the groove opening 30a. Through the flange portion 30b and covering the vertical web portion 30c that is the groove bottom portion of the groove opening 30a, the entire edge receiving portion 30 is sandwiched and overlapped, and both are screwed together. Since the clip metal piece is screwed, there is a fatal difficulty that the structure is complicated and the production cost is very high, and both clip metal pieces are screwed across the entire edge holder. There has been a problem that the work and the work of engaging the respective engaging protrusions of the two clip metal pieces with the edge are very troublesome.

  In addition, the present invention is directed to a large ceiling foundation structure that constitutes a large ceiling that occupies a large area such as a large store, a gymnasium, or a large factory.

  For this reason, as shown in FIG. 1, the height h of the field edge receiver 1 that receives the field edge 2 is about 100 mm, the width w is about 50 mm, the thickness d is about 2 mm. The height, width, and thickness of the conventional field edge receiver shown in Patent Document 1 are approximately three times as high. For this reason, it has been difficult to mount the clip as shown in FIG.

  The present invention eliminates these difficulties, makes it easy to screw the clip between the edge holder and the edge, and can be manufactured at a low cost with a simple structure. The present invention proposes a field edge attachment device that can be attached to a large diameter field edge receiver that is a structure.

  If the means for achieving the above object is shown with reference numerals in the drawings, the field edge mounting apparatus according to the invention of claim 1 is arranged such that the groove opening 1a is turned sideways on the bottom of the building ceiling. A field receiver 1 made of a grooved material with a lip comprising a vertical web portion 1b, upper and lower flange portions 1c and 1d, and upper and lower lip portions 1e and 1f provided vertically opposite to the upper and lower flange portions 1c and 1d. On the other hand, on the lower side, the groove opening 2a faces upward, the horizontal web portion 2b which is the groove bottom portion, the left and right flange portions 2c and 2d rising from the left and right side portions, and the left and right sides from both flange portions 2c and 2d. A field edge mounting device in which a field edge 2 made of a grooved material with a lip consisting of left and right lip parts 2e and 2f provided in an orthogonal arrangement and attached via a clip 3 at the intersection of both is provided. Bottom left Formed on both sides of the vertical board part 6 provided with engaging projections 4 and 5 that engage with the back side of the left and right lip parts 2e and 2f of the field edge 2 on both sides, Screw fixing side plate portions 7 and 8 for screwing to the left and right flange portions 2c and 2d via straddle fitting portions 7a and 8a formed so as to straddle the left and right lip portions 2e and 2f, and the vertical substrate portion 6 A folding plate that is folded on the back side of the vertical substrate portion 6 along the inside of the lower lip portion 1f of the field edge receiver 1 via a folding thickness portion 9 corresponding to the thickness of the lower lip portion 1f of the field edge receiver 1 on the upper side. The clip 3 includes a pair of engaging projections 4 and 5 on both sides of the lower end portion of the vertical substrate portion 6 and engages with the back side of the left and right lip portions 2e and 2f of the field edge 2, and the vertical substrate portion 6 Attached to the outside of the lower lip portion 1f of the field receiver 1 and fixed to the left and right screws of the vertical substrate portion 6 The side plate portions 7 and 8 are applied to the left and right flange portions 2c and 2d of the field edge 2, and the folding thickness portion 9 at the upper end portion of the vertical substrate section 6 is formed on the upper edge portion of the lower lip portion 1f of the field edge receiver 1. The folding plate portion 10 is folded from the upper edge portion of the lower lip portion 1f along the inner side of the lower lip portion 1f through the folding thickness portion 9, and the vertical board portion 6 is provided with a screw insertion hole provided therein. Screws 12 and 11 are screwed into the lower lip portion 1f of the field edge receiver 1, and screws 15 and 16 are inserted from the screw insertion holes 13 and 14 provided on both side plate portions 7 and 8 on both sides of the vertical substrate portion 6, respectively. It is configured to be screwed into the left and right flange portions 2c and 2d of the edge 2.

  According to the second aspect of the present invention, one screw-fastening side plate 7 of the pair of screw-fastening side plates 7, 8 formed on both the left and right side portions of the vertical substrate portion 6 of the clip 3 is pre-fabricated. It consists of the structure of Claim 1 formed by bending at right angles with respect to the vertical board | substrate part 6 by production.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the engagement protrusions 4 and 5 provided on the left and right sides of the lower end of the vertical substrate portion 6 of the clip 3 are provided with protrusion reinforcing ribs 4a and 5a. It consists of a structure.

  The invention according to claim 4 has the structure according to any one of claims 1 to 3, wherein the folding thickness portion 9 of the clip 3 is formed with a folding wall drop opening 17.

  According to a fifth aspect of the present invention, the folding plate portion 10 on the upper side of the vertical substrate portion 6 of the clip 3 is previously bent at a right angle with respect to the vertical substrate portion 6 by factory production. It consists of the composition in any one.

  In the invention according to claim 6, the screw 12 is screwed into the lower lip portion 1 f of the field receiver 1 from the vertical substrate portion 6 and folded so that the tip end portion of the screw 12 coming out of the lower lip portion 1 f does not contact the folding plate portion 10. A screw avoiding opening 17a is formed in the plate portion 10 and has the configuration according to any one of claims 1 to 5.

  The invention according to claim 7 is for bending the screw side plates 7 and 8 at the boundary between the vertical board portion 6 and the screw side plates 7 and 8 formed on both sides thereof. A bent wall hole 18 for bending is formed, and the structure according to any one of claims 1 to 6 is formed.

  In the invention according to claim 8, when attaching the clip 3 to the field edge 2, the pair of engaging protrusions 4, 5 on both the left and right sides of the lower part of the vertical substrate portion 6 of the clip 3 is an obtuse type in the groove opening 2 a of the field edge 2. Are formed on the left and right sides of the vertical substrate portion 6 when the engaging projections 4 and 5 are engaged with the back surfaces of the left and right lip portions 2e and 2f of the field edge 2. The left and right screw-fixing side plate portions 7 and 8 for being screwed to the left and right flange portions 2c and 2d via the straddle fitting portions 7a and 8a formed so as to straddle the left and right lip portions 2e and 2f of the field edge 2 Among them, the screw side plate portion 7 on one side is bent at a right angle in the direction along the one flange portion 2c of the field edge 2 and has a configuration according to any one of claims 1 to 7. is there.

  In the invention according to claim 9, the engagement protrusions 4, 5 provided on the left and right sides of the lower end of the vertical substrate portion 6 of the clip 3 are provided with protrusion reinforcing ribs 4 a, 5 a and at right angles to the vertical substrate portion 6. The protrusion reinforcing rib 4a of the engaging protrusion 4 facing the one side screwing side plate 7 formed in a bent direction is opposite to the right angle bending direction of the one side screwing side plate 7. The protrusion reinforcing rib 5a of the engaging protrusion 5 that faces the screw fixing side plate 8 and is formed in the same plane as the other vertical substrate portion 6 is formed on the one side screw fixing side plate. The structure according to claim 8, which is formed so as to protrude in the same direction as the right-angle bending direction of the portion 7.

  In the invention according to claim 10, when the clip 3 is attached to the field edge 2, the pair of engaging projections 4, 5 on both the left and right sides of the lower part of the vertical substrate portion 6 of the clip 3 are obtuse to the groove opening 2 a of the field edge 2 Are formed on the left and right sides of the vertical substrate portion 6 when the engaging projections 4 and 5 are engaged with the back surfaces of the left and right lip portions 2e and 2f of the field edge 2. The left and right screw-fixing side plate portions 7 and 8 for being screwed to the left and right flange portions 2c and 2d via the straddle fitting portions 7a and 8a formed so as to straddle the left and right lip portions 2e and 2f of the field edge 2 Among them, the screw side plate portion 7 on one side is bent at a right angle in the direction along one flange portion 2c of the field edge 2, and the folding plate portion 10 on the upper side of the vertical substrate portion 6 is a vertical substrate portion. It consists of the structure in any one of Claims 1-7 bent at right angle with respect to 7.

  Next, the effects of the present invention will be described with reference numerals in the drawings. In the field edge mounting device according to the first aspect, the clip 3 for mounting the field edge 2 to the field edge receiver 1 has a lower end portion. Are formed on both sides of the vertical substrate portion 6 and the vertical substrate portion 6 provided with engaging projections 4 and 5 to be engaged with the back surfaces of the left and right lip portions 2e and 2f of the field edge 2, respectively. A pair of screw-fixing side plate portions 7 and 8 for being screwed to the left and right flange portions 2c and 2d, and a vertical direction from the upper side of the vertical substrate portion 6 to the inside of the lower lip portion 1f of the field edge receiver 1 A folding plate portion 10 that is folded on the back side of the substrate portion 6 is provided, and the vertical substrate portion 6 is screwed into a lower lip portion 1f of the field edge receiver 1 from a screw insertion hole 11 provided in the vertical substrate portion 6 so that the vertical substrate portion 6 Screw insertion holes 13 and 1 provided in the side plate portions 7 and 8 for screw fixing on the left and right sides, respectively. Since the screws 15 and 16 are screwed into the left and right flange portions 2c and 2d of the field edge 2 and the side plate parts 7 and 8 for screwing are screwed to the field edge receiver 2, large shaking due to an earthquake or the like occurs after installation. Even if it joins, the firm fixed state of the field edge receiver 1 and the field edge 2 is maintained, and thus it is possible to reliably prevent the ceiling portion from being broken and dropped.

  In particular, according to the present invention, the folding plate portion 10 that is folded from the upper side of the vertical substrate portion 6 to the back side of the vertical substrate portion 6 has the folding thickness portion 9 corresponding to the thickness of the lower lip portion 1 f of the field edge receiver 1. Since the clip 3 is fixed to the field edge receiver 1 along the inside of the lower lip 1f of the field edge receiver 1, the height of the field edge receiver 1, that is, its vertical web Even if the height h (see FIG. 1) of the portion 1b is high, the clip 3 can be fixed to the field receiver 1 without being affected by the height h.

  According to the second aspect of the present invention, one screw-fixing side plate portion 7 of the pair of screw-fixing side plate portions 7 and 8 formed on both sides of the vertical substrate portion 6 of the clip 3 is produced in advance in the factory. Therefore, it is possible to simplify the bending work of the screw side plate portion 7 on one side at the site and contribute to quick workability at the site.

  In the invention according to claim 3, since the protrusions 4, 5 a are provided on the engaging protrusions 4, 5 provided on the left and right sides of the lower end portion of the vertical substrate portion 6 of the clip 3, both the protrusion reinforcing ribs are provided. The engaging projections 4 and 5 can be strongly engaged with the back surfaces of the left and right lip portions 2e and 2f of the field edge 2 by 4a and 5a, respectively.

  According to the fourth aspect of the present invention, since the folding thickness reduction opening portion 17 is formed in the folding thickness portion 9 of the clip 3, the folding thickness portion 9 at the upper end portion of the vertical substrate portion 6 is a field edge receiver. When the folding plate 10 is applied to the upper edge portion of the lower lip portion 1f and the folding plate portion 10 is folded along the inner side of the lower lip portion 1f from the upper edge portion of the lower lip portion 1f through the folding thickness portion 9. Further, the folding operation of the folding plate portion 10 can be easily performed by the presence of the opening portion 17 for folding the meat drop.

  According to the fifth aspect of the present invention, the folding plate portion 10 on the upper side of the vertical substrate portion 6 of the clip 3 is previously bent at a right angle with respect to the vertical substrate portion 6 by factory production. Then, the folding plate portion 10 that is bent at a right angle to the vertical substrate portion 6 and is horizontal in an L shape with respect to the vertical substrate portion 6 is simply folded downward along the inside of the lower lip portion 1f. Therefore, it is possible to simplify the folding operation of the folding plate portion 10 at the site and contribute to quick workability at the site.

  According to the sixth aspect of the present invention, the distal end portion of the screw 12 that is screwed into the lower lip portion 1 f of the field edge receiver 1 from the vertical substrate portion 6 so as to come out of the lower lip portion 1 f does not come into contact with the folding plate portion 10. Since the screw avoiding opening 17a is formed in the folding plate portion 10, the tip portion of the screw 12 that goes out to the inside of the lower lip portion 1f collides with the folding plate portion 10 that is folded along the inside of the lower lip portion 1f. There is no possibility that the folding plate portion 10 comes in contact with the inner side of the lower lip portion 1f to deteriorate the folded state, and the folded state can be maintained well.

  According to the seventh aspect of the present invention, both screw-fixing side plate portions 8 are bent at the boundary portion between the vertical substrate portion 6 and both screw-fixing side plate portions 7 and 8 formed on the left and right side portions thereof. For the purpose of bending, when bending the screw side plate portions 7 and 8 along the flange portion 2d of the field edge 2 at the installation site, the bending hole portion 18 for bending is formed. Due to the presence of the meat hole 18, the side plates 7 and 8 for screw fixing can be easily bent.

  According to the eighth aspect of the invention, when the clip 3 is attached to the field edge 2, the pair of engaging protrusions 4, 5 on the left and right sides of the lower part of the vertical substrate portion 6 of the clip 3 are detected in the groove opening 2 a of the field edge 2. When the engaging projections 4 and 5 are engaged with the back sides of the left and right lip portions 2e and 2f of the field edge 2, the left and right sides of the vertical substrate portion 6 are engaged with each other. Left and right screw-fixing side plate portions 7 for screwing to the left and right flange portions 2c and 2d through straddle fitting portions 7a and 8a formed so as to straddle the left and right lip portions 2e and 2f of the field edge 2 , 8, one side screwing side plate 7 is bent at a right angle in the direction along one flange portion 2 c of the field edge 2, and one side screwing side plate 7 is Since it is bent at right angles along one flange portion 2c of the edge 2, the bending work of the side plate portion 7 is simplified. It is possible to contribute to the rapid construction of the field. On the other hand, the screw-fixing side plate portion 8 on the other side is in the same plane as the vertical substrate portion 6 or slightly bent and is in a substantially planar state. Between the corresponding lip portion 2f of the field edge 2 corresponding to this, there is a sufficient margin for fitting the clip 3 into the groove opening 2a of the field edge 2 in an obtuse manner. Therefore, even if the screw-fixing side plate 7 on one side is bent at a right angle, there is no problem in attaching the clip 3 to the field edge 2.

  According to the invention of claim 9, the engagement protrusions 4, 5 provided on the left and right sides of the lower end portion of the vertical substrate portion 6 of the clip 3 are provided with the protrusion reinforcing ribs 4 a, 5 a, and with respect to the vertical substrate portion 6. The protrusion reinforcing rib 4a of the engaging protrusion 4 facing the one side screwing side plate 7 formed by bending at right angles to the right side bending direction of the one side screwing side plate 7 is The protrusion reinforcing rib 5a of the engaging protrusion 5 that faces the screw-fixing side plate portion 8 that is formed in the opposite direction and is formed in the same plane as the other vertical substrate portion 6 is used for screw-fixing on the one side. Since the side plate portion 7 is formed so as to protrude in the same direction as the right-angle bending direction, the pair of engaging protrusions 4, 5 on the left and right sides of the lower portion of the vertical substrate portion 6 of the clip 3 are detected in the groove opening 2 a of the field edge 2. Fits obtusely, and both engagement protrusions 4 and 5 rotate to the back side of the left and right lip portions 2e and 2f of the field edge 2 When mating, the two protrusion reinforcing ribs 4a and 5a formed so as to protrude from the both engaging protrusions 4 and 5 are smoothly applied to the back surface side without colliding with the left and right lip portions 2e and 2f of the field edge 2. Can be engaged.

  According to the invention of claim 10, when the clip 3 is attached to the field edge 2, the pair of engaging protrusions 4, 5 on the left and right sides of the lower portion of the vertical substrate portion 6 of the clip 3 are detected in the groove opening 2 a of the field edge 2. When the engaging projections 4 and 5 are engaged with the back sides of the left and right lip portions 2e and 2f of the field edge 2, the left and right sides of the vertical substrate portion 6 are engaged with each other. Left and right screw-fixing side plate portions 7 for screwing to the left and right flange portions 2c and 2d through straddle fitting portions 7a and 8a formed so as to straddle the left and right lip portions 2e and 2f of the field edge 2 , 8, one side screwing side plate portion 7 is bent at a right angle in the direction along one flange portion 2 c of the field edge 2, and the folding plate portion 10 on the upper side of the vertical substrate portion 6 is vertical. Since it is fitted in an obtuse manner in a state of being bent at right angles to the substrate part 7, One well side plate portion 7 for screwing the side can contribute to rapid workability on site is simplified also folding work of folding plates 10 at. On the other hand, the screw-fixing side plate portion 8 on the other side is in the same plane as the vertical substrate portion 6 or slightly bent and is in a substantially planar state. Between the corresponding lip portion 2f of the field edge 2 corresponding to this, there is a sufficient margin for fitting the clip 3 into the groove opening 2a of the field edge 2 in an obtuse manner. Therefore, even if the screw-fixing side plate 7 on one side is bent at a right angle, there is no problem in attaching the clip 3 to the field edge 2.

It is a perspective view which shows the field edge mounting apparatus which concerns on one Embodiment of this invention. It is a front view which shows the expansion | deployment state before the bending process of the clip which is the principal part of this invention. The state which bent the side board part for screwing one side of the clip is shown, (a) is a front view, (b) is a side view, (c) is a plan view. The state which bent the folding board part with the side board part for screwing one side of a clip is shown, (a) is a front view, (b) is a side view, (c) is a top view. FIG. 3 shows the engaging operation of the clip side edge portion on one side of FIG. 3 in the state where the clip is bent, and FIG. The perspective view which shows the state engage | inserted to a type | formula, (b) shows the state which engage | inserted the clip to the groove opening of a field edge, and was engaged with the back surface side of a pair of left and right lip | rip part of a field edge. FIG. 5C is a perspective view showing a process of folding the folding plate portion into the back surface side of the lower lip portion of the field edge receiver and screwing the screw into the field edge receiver and the field edge. (A) is an enlarged view of a portion indicated by R1 in FIG. 5, and (b) is an enlarged view of a portion indicated by R2 in FIG. FIG. 4 shows the engaging operation of the clip side edge portion and the folding plate on one side of FIG. 4 in the state where the clip is bent, and (a) shows an oblique direction of the clip with respect to the groove opening of the field edge. FIG. 5B is a perspective view showing a state in which the mating is fitted to the obtuse type, and FIG. 5B is a diagram in which the clip is fitted into the groove opening of the field edge, and the pair of engaging projections are engaged with the back side of the pair of left and right lip parts of the field edge. The perspective view which shows a state, (c) is a perspective view which shows the process in which the folding board part of a horizontal state is folded in the back surface side of the lower lip part of a field edge receiver, and a screw is screwed in a field edge receiver and a field edge. It is a vertical side view of the state where the clip was screwed between the field edge receiver and the field edge. It is the same perspective view. It is a perspective view which shows an example of the ceiling base structure using the conventional clip.

  Hereinafter, an embodiment of a field edge mounting structure according to the present invention will be described in detail with reference to the drawings. A plurality of suspension bolts B are screwed at an upper end portion to an insert nut N embedded in a ceiling slab S. For example, the height of the vertical web 1b of the field edge receiver 1 made of a groove-shaped member with the groove opening 1a turned sideways by a substantially upward open U-shaped hanger H attached to the lower ends of the suspension bolts B. (Width) h is about 100 mm, the width w of the upper and lower flange portions 1c, 1d is about 50 mm, the width g of the upper and lower lip portions 1e, 1f is 20 mm, and the thickness d of each of these pieces is about 2 mm. The field edge receiver 1 is reinforced with the retaining bolt V and attached to the hanger H horizontally.

  And the field edge 2 which consists of the groove shape material with a lip which makes the groove opening 2a face up on the lower side of the field edge receiver 1 is suspended from the field edge receiver 1 via the clip 3 according to the present invention. Yes. 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.

  As described above, the field receiver 1 made of a grooved material horizontally arranged with the groove opening 1a facing sideways is a field made of a grooved material with a lip that is arranged perpendicularly with the groove opening 2a facing upward on the lower side. The edge 2 is attached through the clip 3 at the intersection of both 1 and 2, and the unfolded state before the clip 3 is bent as described later is as shown in FIG. That is, the clip 3 includes a vertical substrate portion 6 provided with engagement protrusions 4 and 5 that are engaged with the back surfaces of the left and right lip portions 2e and 2f of the field edge 2 on the left and right sides of the lower end portion, and Screw side plates for screwing to the left and right flange portions 2c and 2d via straddle fitting portions 7a and 8a formed on the left and right sides and straddling the left and right lip portions 2e and 2f of the field edge 2 7, 8, and a vertical substrate along the inner side of the lower lip portion 1 f of the field receiver 1 through a folding thickness portion 9 corresponding to the thickness of the lower lip portion 1 f of the field receiver 1 on the upper side of the vertical substrate portion 6. A folding plate portion 10 that is folded into the back side of the portion 6, and further, a folding-off portion 17 is formed in the folding thickness portion 9 of the clip 3, and the folding plate portion 10 has a screw as described later. An avoidance opening 17a is formed, and the vertical substrate portion 6 and its left and right sides The folding wall 落孔 portion 18 for bending the screws for the side plate portions 7 and 8 are formed in the boundary portion between the screws for the side plate portions 7 and 8 formed. Further, screw insertion holes 11, 13, 14 are formed in the vertical substrate portion 6 and both screw fixing side plates 7, 8, and a pair of engagements provided on the left and right sides of the lower end portion of the vertical substrate portion 6. Protrusion reinforcing ribs 4a and 5a are appropriately formed on the protrusions 4 and 5.

  3 (a), (b) and (c), in one embodiment, the left and right lip portions 2e and 2f of the field edge 2 are formed on the left and right sides of the vertical substrate portion 6. One side screwing side plate portion of the left and right screwing side plate portions 7 and 8 to be screwed to the left and right flange portions 2c and 2d via the straddle fitting portions 7a and 8a. 7 is a right side plate portion bent at a right angle in the direction along one flange portion 2 c of the field edge 2, whereas the screw side plate portion 8 on the other side is flush with the vertical substrate portion 6. Alternatively, it is a flat side plate portion that is slightly bent and provided in a substantially planar shape, and the straddle portion 8a of the flat side plate portion 8 is the lip portion of the field edge 2 on the side straddling the straddle portion 8a. It is formed in a width that is sufficiently large to fit into 2f. In this case, when attaching the clip 3 to the field edge 2 in the field, the left and right side flange parts 7 and 8 on both the left and right sides of the vertical board part 6 are respectively left and right flange parts of the field edge 2 if possible. It is preferable to bend at a right angle with respect to the vertical substrate part 6 so as to follow 2c, 2d, but if so, the space between the vertical substrate part 6 and the left and right screw fixing side plates 7, 8 The straddle fitting portions 7a, 8a are narrowed, and the clip 3 cannot be fitted into the groove opening 2a of the field edge 2 in a blunt manner across the left and right lip parts 2e, 2f of the field edge 2. For this reason, only the screw-fixing side plate portion 7 on one side is bent in advance at a right angle so as to simplify the minimum on-site mounting.

  Further, as shown in FIGS. 4A, 4B, and 4C, in another embodiment, in addition to the embodiment shown in FIG. The folding plate portion 10 is bent at a right angle with respect to the vertical substrate portion 6, bent in an L shape with respect to the vertical substrate portion 6, and formed in a horizontal state.

  When the clip 3 is attached to the field edge 2, in the clip 3 of the embodiment shown in FIG. 3, as shown in FIGS. 5A and 5B, the lower portion of the vertical substrate portion 6 of the clip 3. A pair of engaging protrusions 4 and 5 formed on both the left and right sides are fitted into the groove opening 2a of the field edge 2 while being inclined in the longitudinal direction in an obtuse manner, and rotated in the direction (a) in the figure to engage both. When the protrusions 4 and 5 are engaged with the back surfaces of the left and right lip portions 2e and 2f of the field edge 2, they are formed on both the left and right sides of the vertical substrate portion 6 so as to straddle the left and right lip portions 2e and 2f of the field edge 2. Of the left and right screw-fixing side plate portions 7 and 8 to be screwed to the left and right flange portions 2c and 2d via the straddle fitting portions 7a and 8a, the one side plate portion 7 is the While the right side plate portion bent at a right angle in the direction along one flange portion 2c is formed, the other side plate portion 8 is a vertical substrate. 6 and it is the same plane or slightly bent and forms a flat side plate portion provided on the substantially flat.

  The protrusion reinforcing ribs 4a and 5a formed on the pair of engaging protrusions 4 and 5 provided on the left and right sides of the lower end portion of the vertical substrate portion 6 are formed as shown in FIG. 2, FIG. 3, or FIG. The protrusion reinforcing ribs 4a of the engaging protrusions 4 facing the screw fixing side plate part 7 formed by bending at right angles to the part 6 project from the left and right side parts of the vertical substrate part 6. The first screw fixing side plate portion 7 is formed so as to protrude in a direction opposite to the right-angled bending direction with the center portion 6a of the engaging projections 4 and 5 interposed therebetween, and is formed in the same plane as the other vertical substrate portion 6. The protrusion reinforcing rib 5a of the engaging protrusion 5 facing the screw fixing side plate portion 8 is formed so as to protrude in the same direction as the right angle bending direction of the screw fixing side plate portion 7 on the one side. Features. For this reason, the pair of engaging projections 4 and 5 on the left and right sides of the lower part of the vertical substrate portion 6 of the clip 3 are fitted into the groove opening 2a of the field edge 2 in an obtuse manner and rotated in the direction of the arrow a. When the engaging protrusions 4 and 5 are engaged with the back surfaces of the left and right lip portions 2e and 2f of the field edge 2, the protrusion reinforcing ribs 4a and 5a are in the direction of rotation of the clip 3 (arrow a direction). Since the protrusions 4 and 5 of the clip 3 protrude in the opposite direction and are fitted in the groove opening 2a of the field edge 2 in an obtuse manner and rotate in the direction of the arrow a, each protrusion reinforcing rib 4a , 5a can be smoothly engaged with the back side of the left and right lip portions 2e and 2f without colliding with the left and right lip portions 2e and 2f of the field edge 2.

  Then, as shown in FIG. 5 (b), the clip 3 is rotated in the direction of the arrow a so that the vertical substrate portion 6 is in contact with the lower lip portion 1 of the field edge receiver 1 and the clip 3 Since the fold thickness opening 9 is formed in the fold thickness portion 9, the fold thickness portion 9 at the upper end of the vertical substrate portion 6 is applied to the upper edge portion of the lower lip portion 1 f of the field edge receiver 1. The folding plate portion 10 can be easily folded from the upper edge portion of the lower lip portion 1f along the inner side of the lower lip portion 1f via the folding thickness portion 9.

  After that, as shown in FIG. 5C, the screw 12 is forcibly screwed into the lower lip 1 f of the field edge 1 by tapping from the screw insertion hole 11 formed in the vertical substrate portion 6. As shown in FIG. 5B, the screw 12 may be screwed into the lower lip portion 1f before the folding plate portion 10 is folded.

  One screwing side plate 7 of the pair of screw fixing side plates 7 and 8 formed on both sides of the vertical substrate portion 6 of the clip 3 is bent at a right angle in advance by factory production. Therefore, it is possible to simplify the bending work of the screw side plate portion 7 on the one side at the site and contribute to the quick workability at the site. Further, the other screw-fixing side plate portion 8 is bent along the left flange portion 2 d of the field edge 2. It is to be noted that a folding hole for folding both screw-fixing side plate portions 8 at the boundary between the vertical substrate portion 6 and both screw-fixing side plate portions 7 and 8 formed on the left and right side portions thereof. Since the portion 18 is formed, when the side screws 7 and 8 for screw fixing, particularly the flat screw fixing side plates 8 are bent along the flange portion 2d of the field edge 2 at the installation site, Due to the presence of the bending wall hole portion 18, the side plate portions 7 and 8 for both screwing can be easily bent. Thereafter, as shown in FIG. 5C, the screw-fixing side plate portions 7 and 8 that are in contact with the left and right flange portions 2c and 2d of the field edge 2 are screwed into the screws 15 through the screw insertion holes 13 and 14, respectively. , 16 may be forcibly screwed into the left and right flange portions 2c, 2d.

  In addition, the screw 12 is screwed into the folding plate 10 so that the tip of the screw 12 that is screwed into the lower lip 1f of the field receiver 1 from the vertical substrate 6 and comes out of the lower lip 1f does not hit the folding plate 10. Since the avoiding opening portion 17a is formed, the tip of the screw 12 coming out inside the lower lip portion 1f comes into contact with the folding plate portion 10 folded along the inside of the lower lip portion 1f, and the folding plate portion 10 However, there is no possibility that the folded state is deteriorated by separating from the inside of the lower lip portion 1f, and the folded state can be maintained well.

  Note that the folding plate portion 10 on the upper side of the vertical substrate portion 6 of the clip 3 is bent in advance at a right angle with respect to the vertical substrate portion 6 by factory production in advance, so that the vertical substrate portion 6 is mounted at the installation site. The folding plate portion 10 that is bent at a right angle and is L-shaped with respect to the vertical substrate portion 6 only needs to be folded downward along the inside of the lower lip portion 1f. It is possible to simplify the folding operation of the plate part 10 and contribute to quick workability on site.

  Further, a screw is avoided in the folding plate portion 10 so that the tip of the screw 12 screwed into the lower lip portion 1f of the vertical edge receiving portion 1 from the vertical substrate portion 6 and coming out to the inside of the lower lip portion 1f does not hit the folding plate portion 10. Since the opening portion 17a is formed, the front end portion of the screw 12 coming out to the inside of the lower lip portion 1f comes into contact with the folding plate portion 10 that is folded along the inside of the lower lip portion 1f, so that the folding plate portion 10 is There is no possibility that the folded state is deteriorated by separating from the inside of the lower lip portion 1f, and the folded state can be maintained well.

  As described above, the folding plate portion 10 is provided to be folded from the upper side of the vertical substrate portion 6 to the inner side of the lower lip portion 1f of the field edge receiver 1, and the vertical substrate portion 6 is provided thereon. Screws 12 from the screw insertion holes 11 are screwed into the lower lip 1 f of the field edge receiver 1, and screw insertion holes 13 provided on the screw fixing side plates 7, 8 on the left and right sides of the vertical substrate 6, respectively. Since the screws 15 and 16 from 14 are screwed into the left and right flange portions 2c and 2d of the field edge 2 and the side plate parts 7 and 8 for screwing are screwed to the field edge receiver 2, large shaking due to an earthquake or the like after installation Even if added, the firm fixing state of the field edge receiver 1 and the field edge 2 is maintained, so that the destruction of the ceiling part and the fall accident can be surely prevented.

  In particular, according to the present invention, the folding plate portion 10 that is folded from the upper side of the vertical substrate portion 6 to the back side of the vertical substrate portion 6 has the folding thickness portion 9 corresponding to the thickness of the lower lip portion 1 f of the field edge receiver 1. Since the clip 3 is fixed to the field edge receiver 1 along the inside of the lower lip 1f of the field edge receiver 1, the height of the field edge receiver 1, that is, its vertical web Even if the height h (see FIG. 1) of the portion 1b is high, the clip 3 can be fixed to the field receiver 1 without being affected by the height h.

DESCRIPTION OF SYMBOLS 1 Field edge 1a Groove opening 1b Vertical flange part 1c Upper flange part 1d Lower flange 1e Upper lip part 1f Lower lip part 2 Field edge 2a Groove opening 2b Lateral web part 2c Right flange part 2d Left flange part 2e Right lip part 2f Left Lip part 3 Clip 4 Engagement protrusion 4a Protrusion reinforcement rib 5 Engagement protrusion 5a Protrusion reinforcement rib 6 Vertical substrate part 7 Screw stop side plate part 8 Screw stop side plate part 7a Stretching part 8a Stretching part 9 Folding thickness part 10 Folding Plate part 11 Screw insertion hole 12 Screw 13 Screw insertion hole 14 Screw insertion hole 15 Screw 16 Screw 17 Mouth opening 17a Screw avoidance opening 18 Bending hole

Claims (10)

In a building ceiling base, a grooved material with a lip comprising a vertical web portion which is a groove bottom portion, a vertical flange portion, and an upper and lower lip portion provided vertically opposite to the upper and lower flange portions on the floor of the building. The horizontal web part that is the bottom of the groove with the groove opening facing upward, the left and right flange parts that rise from the left and right side parts, and the left and right sides from both flange parts. A field edge mounting device for mounting a field edge made of a channel material with a lip consisting of left and right lip parts, and mounting it via a clip at the intersection of both,
The clip is formed on both the left and right sides of the lower end part, and a vertical board part provided with engagement protrusions that engage with the back sides of the left and right lip parts of the field edge, and the left and right lip parts of the field edge. A side plate portion for screwing to be screwed to the left and right flange portions via a straddle fitting portion formed so as to straddle, and a fold corresponding to the thickness of the lower lip portion of the field receiver on the upper side of the vertical substrate portion It consists of a folding plate part that is folded into the back side of the vertical board part along the inside of the lower lip part of the field edge receiver through the thickness part,
In the clip, a pair of engaging projections on both sides of the lower end of the vertical board part engage with the back side of the left and right lip parts of the field edge, and the vertical board part is applied to the outside of the lower lip part of the field edge receiver, The left and right screw fixing side plate parts are applied to the left and right flange parts of the field edge, and the folded thickness part of the upper end part of the vertical board part is applied to the upper edge part of the lower lip part of the field edge receiver. The folding plate portion is folded from the upper edge portion of the lower lip portion along the inside of the lower lip portion through the folding thickness portion,
The vertical board part is screwed into the lower lip part of the field receiving from the screw insertion hole provided in the vertical board part, and the screw is connected to the both sides of the vertical board part from the screw insertion holes provided on both sides of the screw fixing side. A field mounting device that is screwed into the left and right flanges.   One screw fixing side plate portion of the pair of screw fixing side plate portions formed on both sides of the vertical substrate portion of the clip is bent at a right angle with respect to the vertical substrate portion by factory production in advance. Item 1. A field edge mounting device according to item 1.   The edge mounting apparatus according to claim 1 or 2, wherein a protrusion reinforcing rib is provided on the engaging protrusion provided on the left and right sides of the lower end portion of the vertical substrate portion of the clip.   The field edge attachment device according to any one of claims 1 to 3, wherein an opening portion for folding meat is formed in the folding thickness portion of the clip.   The edge mounting apparatus according to any one of claims 1 to 4, wherein the folding plate portion on the upper side of the vertical substrate portion of the clip is bent in advance at a right angle to the vertical substrate portion by factory production.   A screw avoidance opening is formed in the folding plate portion so that the tip of the screw that is screwed into the lower lip portion of the vertical edge receiving portion from the vertical substrate portion and comes out inside the lower lip portion does not hit the folding plate portion. The field edge attachment apparatus in any one of 1-5.   Bending wall holes for bending both screw fixing side plates are formed at the boundary between the vertical substrate portion and the screw fixing side plates formed on the left and right sides thereof. Item 6. A field edge mounting device according to any one of Items 1 to 6.   When attaching the clip to the field edge, a pair of engaging protrusions on the lower left and right sides of the vertical substrate portion of the clip are fitted into the groove opening of the field edge in an obtuse manner in the longitudinal direction, and both the engagement protrusions are When engaging the back side of the left and right lip parts of the field edge, it is screwed to the left and right flange parts via the straddle fitting parts formed on the left and right sides of the vertical board part and straddling the left and right lip parts of the field edge Of the left and right screw-fixing side plates to be made, one screw-fixing side plate is bent in advance at a right angle in a direction along one flange portion of the field edge. The field edge attachment apparatus in any one.   The engaging protrusions provided on the left and right sides of the lower end portion of the vertical substrate portion of the clip are provided with protrusion reinforcing ribs, and the one side screw-fixing side plate portion formed at a right angle with respect to the vertical substrate portion. The protrusion reinforcing rib of the engaging protrusion facing the screw is formed so as to protrude in the direction opposite to the right-angle bending direction of the screw fixing side plate portion on the one side, and is formed in the same plane as the other vertical substrate portion 9. A field edge mounting device according to claim 8, wherein the protrusion reinforcing rib of the engaging protrusion facing the side plate portion is formed to protrude in the same direction as the right angle bending direction of the screw side plate portion on the one side. .   When attaching the clip to the field edge, a pair of engaging protrusions on the lower left and right sides of the vertical substrate portion of the clip are fitted into the groove opening of the field edge in an obtuse manner in the longitudinal direction, and both the engagement protrusions are When engaging the back side of the left and right lip parts of the field edge, it is screwed to the left and right flange parts via the straddle fitting parts formed on the left and right sides of the vertical board part and straddling the left and right lip parts of the field edge Of the left and right screw fixing side plates to be bent, the one screw fixing side plate is bent at a right angle in the direction along one flange portion of the field edge, and on the upper side of the vertical substrate portion. The field edge attachment device according to any one of claims 1 to 7, wherein the folding plate portion is bent at a right angle with respect to the vertical substrate portion.

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