JP2012036675A - Clip reinforcing fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively reinforce a clip with proper workability.SOLUTION: A clip reinforcing fitting 7 includes a body portion 71, a ceiling joist locking portion 72 locked to a ceiling joist 5, and an upper plate portion 73 for covering a top surface of a clip 6. An elastic locking piece 77, which makes an end side of the upper plate portion 73 connected to the upper plate portion 73 and which is elongated obliquely downward toward the body portion 71 from the upper plate portion 73, is formed on the upper plate portion 73. When the clip reinforcing fitting 7 is turned by locking the ceiling joist locking portion 72 to a lip portion 53 of the ceiling joist 5, the elastic locking piece 77 is pushed up by the clip 6 and advances to a top surface of an upper plate portion 64 of the clip 6. When going over the clip 6, the elastic locking piece 77 is pushed down to an original state by springback. Thus, the upper plate portion 73 covers the top surface of the upper plate portion 64, and an end of the elastic locking piece 77 is hooked on a body portion 61 of the clip 6, so that the clip reinforcing fitting 7 can be fitted into the clip 6.

Description

  The present invention relates to a clip reinforcing metal fitting for reinforcing a clip that connects a field edge receiver and a field edge in an orthogonal direction.

  Generally, the ceiling base material for constructing the ceiling material is a field edge (also called “channel”) suspended from the building frame, a field edge (also called “bar”) to which the ceiling material is attached, It is comprised by the clip which connects an edge receptacle and a field edge in an orthogonal direction. These ceiling base materials are standardized, the field edge receiver is formed in a U-shaped cross section opened to the side, and the field edge is opened upward to form a pair of lip portions facing each other. The clip is formed in a substantially C-shaped cross section, and the clip includes a field edge locking part that is locked to the lip part of the field edge and an upper locking part that wraps around the upper surface of the field edge receiver and is locked to the field edge receiver. Is formed.

  Such a ceiling base material is sufficient if it can support the ceiling material, and since it is a non-structural member, the connection strength and the like are not defined by the Building Standards Act. For this reason, the connection strength between the field edge and the field edge receiver by the clip has not been set so high, and there have been reports of cases where the ceiling material falls due to a recent large earthquake. For example, in the Geiyo earthquake that occurred on March 24, 2001, the ceiling material of the gymnasium fell. In the Tokachi-oki earthquake that occurred in September 26, 2003, the ceiling material of the airport terminal fell, and on August 16, 2005 Due to the Miyagi-oki earthquake that occurred in October, the ceiling material of the pool was falling.

  In view of such earthquake damage cases, the Ministry of Land, Infrastructure, Transport and Tourism has published the Ministry of Land, Infrastructure, Transport and Tourism Housing Bureau technical advice on the installation of ceiling materials. This technical advice is intended to prevent the ceiling material from falling by suppressing the ceiling material from shaking horizontally and colliding with the structure. Incorporating a sufficient clearance between the ceiling surface and the surrounding wall, or providing a slanted brace (brace) or a horizontal steady rest (horizontal brace) when the suspension bolt is long is included.

JP 2004-131928 A Utility Model Registration No. 3019988 JP 2007-023738 A

  However, when the present inventors created such an earthquake vibration model and examined the vibration received by the ceiling, the response wave received by the ceiling is several times the ground motion on the ground where the seismometer is installed. We found that vertical vibrations were further amplified near the center of the ceiling. Furthermore, based on the results of these studies, the present inventors do not have to provide a horizontal base earthquake resistance as indicated in the technical advice of the Housing Bureau of the Ministry of Land, Infrastructure, Transport and Tourism. We obtained the knowledge that it is necessary to have sex.

  In this regard, Patent Document 1 and Patent Document 2 disclose a technique for improving the connection strength between the field edge receiver and the field edge by changing the shape of the clip itself, and Patent Document 3 discloses a field edge. There is disclosed a technique for improving the connection strength between a field edge receiver and a field edge by screwing a clip that connects the field edge and the field edge with a connection reinforcing tool.

  However, the techniques described in Patent Document 1 and Patent Document 2 need to change the shape of the clip itself, and thus cannot be applied to repairing existing ceiling base materials such as renovation and reinforcement work. There is. On the other hand, in the technique described in Patent Document 3, although it can be applied to repair of existing ceiling base materials, there is a problem that the construction cost becomes high due to the large number of parts, and it is necessary to perform screwing. Therefore, there is a problem that workability is deteriorated.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a clip reinforcing metal fitting that can reinforce a clip with good workability and low cost while having vertical earthquake resistance.

  The clip reinforcing bracket according to the present invention is related to the field edge in order to connect the field edge receiver suspended from the building frame and the field edge disposed below the field edge receiver and attached to the ceiling material in the orthogonal direction. A clip reinforcement bracket that reinforces a clip that is stopped and wraps upward from the side of the field receiver and is locked to the field receiver, on the side of the field receiver and on the opposite side of the clip A trunk portion that is disposed at a lower portion of the trunk portion and is latched to the field edge, and an upper plate portion that is disposed at an upper portion of the trunk portion and covers the upper surface of the clip. The upper plate portion is formed with an elastic locking piece extending obliquely downward toward the trunk portion and sandwiching the clip and the edge receiver with the trunk portion.

  According to the clip reinforcing bracket according to the present invention, since the elastic locking piece extends obliquely downward toward the trunk portion, the field edge locking portion is locked to the field edge, and the body portion serves as the field edge receiver. When the clip reinforcing metal fitting is fitted into the clip so as to be close to each other, the elastic locking piece is pushed up by the clip and advances on the upper surface of the clip. When the elastic locking piece exceeds the clip, the elastic locking piece released from the upper surface of the clip is pushed down to the original state by the spring back, and the upper plate portion covers the upper surface of the clip, and the elastic locking piece is It catches on the side of the clip. Thus, the clip, the field edge receiver and the field edge are sandwiched between the upper plate portion of the clip reinforcing metal fitting and the field edge engaging portion, and the clip and Since the field edge receiver is sandwiched, the clip, the field edge receiver, and the field edge are firmly connected to each other. In this way, the clip, the field edge receiver, and the field edge can be firmly connected by a simple operation of engaging the field edge locking portion with the field edge and fitting the clip reinforcing bracket into the clip. The clip can be reinforced at low cost with good performance. In addition, there is no need to change the shape of the clip itself, and the clip reinforcement bracket can be fitted in a state where the field edge receiver and the field edge are connected with the clip, so that the clip can be reinforced during renovation and reinforcement work. it can. Furthermore, since the clip reinforcing metal fitting can be made into a simple shape, the clip reinforcing metal fitting can be thickened to further improve the strength. In addition, since the locking to the field edge is performed by the two members of the clip and the clip reinforcing metal fitting, the load acting on the field edge is dispersed and the deformation of the field edge can be suppressed.

  The field edge is formed in a substantially C-shaped cross section including a pair of lip parts bent inward from a pair of opposing side plate parts, and the field edge locking part is formed of a pair of lip parts from the inside of the field edge. It is preferable to be locked to. As a result, the field edge locking part can be locked to the field edge by a simple operation of entering the field edge locking part into the field edge and locking it to the lip part, thus improving workability. be able to. In addition, as described above, since the locking to the field edge is performed by the two members of the clip and the clip reinforcing bracket, it is possible to suppress the lip portion from rolling up.

  Moreover, it is preferable that the field edge latching | locking part and the upper board part are extended in the mutually reverse direction. In this way, by extending the field edge locking portion and the upper plate portion in opposite directions, the clip reinforcing bracket has a substantially Z-shaped cross section, so that the field edge locking portion is locked to the field edge. By rotating about the stop position as an axis, the elastic locking piece can be locked to the clip by covering the upper plate portion on the upper surface of the clip with the field lock portion locked to the field edge.

  Moreover, it is preferable that the upper board part protrudes from the clip. In this way, by projecting the upper plate part from the clip, it is possible to hook the upper plate part with the clip reinforcing metal fitting fitted into the clip, thus improving the workability when removing the clip reinforcing metal fitting. be able to.

  The elastic locking piece is preferably formed by punching a part of the upper plate portion. Thus, since the elastic locking piece can be formed by a simple processing method of punching out a part of the upper plate portion, the manufacturing cost of the clip reinforcing bracket can be reduced.

  On the other hand, the elastic locking piece may be formed by bending the tip of the upper plate portion. Thus, since the elastic locking piece can be formed by a simple processing method of bending the tip of the upper plate portion, the manufacturing cost of the clip reinforcing metal fitting can be reduced.

  According to the present invention, the clip can be reinforced with good workability and low cost.

It is the figure which showed the ceiling base member which constructed the clip reinforcement member which concerns on embodiment. It is the figure which showed the ceiling base member before constructing the clip reinforcement member which concerns on embodiment. It is the figure which showed the shape of the clip, (a) has shown the clip before construction, (b) has shown the clip after construction, respectively. It is the figure which showed the state which attached the clip from the back side of the field edge receiver, and connected the field edge receiver and the field edge, (a) is a front view, (b) has shown the side view, respectively. It is the figure which showed the state which attached the clip from the ventral side of the field edge receiver, and connected the field edge receiver and the field edge, (a) is a front view, (b) has shown the side view, respectively. It is the figure which showed the double clip reinforcement metal fitting, (a) is a perspective view, (b) is a side view, (c) has shown the rear view. It is the figure which showed the single clip reinforcement metal fitting, (a) is a perspective view, (b) is a side view, (c) has shown the rear view. It is a figure for demonstrating the method of fitting a clip reinforcement metal fitting in a clip. It is the figure which showed the state which fitted the clip reinforcement metal fitting to the clip attached to the back side of a field edge receptacle, (a) is a front view, (b) is a side view, (c) shows a rear view, respectively. Yes. It is the figure which showed the state which fitted the clip reinforcement metal fitting to the clip attached to the ventral side of a field edge receptacle, (a) is a front view, (b) is a side view, (c) shows a rear view, respectively. Yes. It is a figure which shows the clip reinforcement metal fitting which bent the upper surface board and formed the elastic locking piece. It is a conceptual diagram of the gymnasium model in an Example. It is the figure which showed the ground motion of the Geiyo earthquake which is an input wave, (a) is the input acceleration of the ground motion in x direction, (b) is the input acceleration of ground motion in the y direction, (c) is the input of ground motion in the z direction. Each acceleration is shown. It is the figure which showed the response wave of the roof (central area | region (alpha)), (a) shows the roof acceleration in a x direction, (b) shows the roof response acceleration in ay direction, (c) shows the roof response acceleration in az direction, respectively. ing. FIG. 4A shows a vibration table input wave that is 32% of the response wave. FIG. 3A shows the input acceleration of the vibration table input wave in the x direction, and FIG. 3B shows the input acceleration of the vibration table input wave in the z direction. It is an elevational view showing a simulated ceiling of Example 1 and Comparative Example 1. 3 is a plan view showing a simulated ceiling of Example 1 and Comparative Example 1. FIG. It is an elevation view showing a simulated ceiling of Example 2 and Comparative Example 2. It is a top view which shows the simulated ceiling of Example 2 and Comparative Example 2. It is an elevational view showing a simulated ceiling of Example 3 and Comparative Example 3. It is a top view which shows the simulated ceiling of Example 3 and Comparative Example 3. It is an elevational view showing a simulated ceiling of Example 4 and Comparative Example 4. It is a top view which shows the simulated ceiling of Example 4 and Comparative Example 4. It is an elevational view showing a simulated ceiling of Example 5 and Comparative Example 5. 10 is a plan view showing a simulated ceiling of Example 5. FIG. 10 is a plan view showing a simulated ceiling of Comparative Example 5. FIG. It is a graph which shows an experimental result, (a) shows a comparative example and (b) shows an Example, respectively.

  Hereinafter, a clip reinforcing metal fitting according to the present invention will be described in detail with reference to the drawings. In all the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a diagram showing a ceiling foundation member on which the clip reinforcing member according to the embodiment is constructed, and FIG. 2 is a diagram showing the ceiling foundation member before constructing the clip reinforcing member according to the embodiment.

  As shown in FIGS. 1 and 2, the ceiling base member 1 supports a ceiling material (not shown) from above, and is fixed to the suspension bolt 2 suspended from the building frame and the suspension bolt 2. Hanger 3, field edge holder 4 held by hanger 3, field edge 5 (5 a, 5 b) disposed below field edge receiver 4 to which a ceiling material is attached, field edge receiver 4 and field edge 5 The clip 6 (6a, 6b) that crosses the two in the orthogonal direction and the clip reinforcing bracket 7 (7a, 7b) that reinforces the connection between the field edge receiver 4 and the field edge 5 by the clip 6 are mainly configured. As an element.

  The field edge receiver 4 is made of a metal material such as stainless steel or aluminum and is elongated in the horizontal direction. The field edge receiver 4 is formed in a U-shaped cross-section opened to the side, and is formed in a horizontal direction from the flat side plate portion 41 arranged in parallel to the vertical plane and the upper and lower edges of the side plate portion 41. And a flat plate-like upper plate portion 42 and a lower plate portion 43 that are bent substantially at right angles to each other and arranged in parallel with the horizontal plane. In the field edge receiver 4, the side opened to the side is the abdomen side, and the side opposite to the abdomen side where the side plate portion 41 is disposed is the back side.

  The field edge 5 is formed of a metal material such as stainless steel or aluminum and extends in a direction orthogonal to the field edge receiver 4. The field edge 5 is formed in a substantially C-shaped cross-section opened upward, and has a flat bottom plate portion 51 arranged in parallel to the horizontal plane, and substantially perpendicularly upward from both ends of the bottom plate portion 51 in the vertical direction. A pair of flat side plates 52 bent and arranged in parallel with the vertical plane, and a pair of lip portions 53 bent substantially perpendicularly inward in the horizontal direction from the pair of side plates 52 facing each other. Yes.

  The lip portion 53 functions as a locking portion that locks the clip 6 or the clip reinforcing bracket 7. The lip portion 53 is formed in a curved surface shape, and the tip protruding inward in the horizontal direction from the side plate portion 52 is folded downward in the vertical direction. The lip portion 53 does not necessarily have to be curved, and may have any shape as long as it functions as a locking portion. The pair of lip portions 53 are separated from each other, and an opening 54 is formed between the lip portion 53.

  The field edge 5 configured in this way is of two types: a double field edge 5a disposed at a partitioning portion of the ceiling material, and one or more single field edges 5b disposed between the double field edges 5a. It is configured. For example, the double field edges 5a are arranged at intervals of 1820 mm, and four single field edges 5b are arranged at intervals of 364 mm between the double field edges 5a. For this reason, the bottom plate part 51 of the double field edge 5a is formed to be about twice as wide as the bottom plate part 51 of the single field edge 5b, and the rigidity is enhanced. The double field edge 5a and the single field edge 5b are basically the same except that the width of the bottom plate portion 51 is different. Therefore, the double field edge 5a and the single field edge 5b are combined unless otherwise specified. This is simply described as field 5.

  The clip 6 includes two types of a double clip 6a that connects the field edge receiver 4 and the double field edge 5a, and a single clip 6b that connects the field edge receiver 4 and the single field edge 5b. For this reason, the double clip 6a is formed wide to match the width of the double field edge 5a, and the single clip 6b is formed narrow to match the width of the single field edge 5b. Since the double clip 6a and the single clip 6b have basically the same shape except that they have different widths, the double clip 6a and the single clip 6b will be described simply as the clip 6 unless otherwise specified.

  FIG. 3 is a diagram showing the shape of the clip, where (a) shows the clip before construction, and (b) shows the clip after construction. FIG. 4 is a view showing a state in which a clip is attached from the back side of the field edge receiver and the field edge receiver and the field edge are connected to each other, (a) is a front view, and (b) is a side view. Yes. FIG. 5 is a view showing a state in which the clip is attached from the ventral side of the field edge receiver and the field edge receiver and the field edge are connected to each other, with (a) showing a front view and (b) showing a side view. Yes. 3 shows a single clip 6b, and FIGS. 4 and 5 show a case where the field edge receiver 4 and the single field edge 5b are connected by a single clip 6b.

  As shown in FIGS. 3 to 5, the clip 6 is formed of a metal material such as stainless steel or aluminum, and the field edge receiver 4 and the field edge 5 disposed below the field edge receiver 4 are orthogonal to each other. To be connected. The clip 6 includes a body portion 61 disposed on the side of the field edge receiver 4, a field edge locking portion 62 formed at a lower portion of the body portion 61 and locked to the field edge 5, and the body portion 61. And an upper locking portion 63 that is formed on the upper portion and is locked to the field receiver 4.

  The torso 61 is a portion that is disposed on the side of the field edge receiver 4 and on either the back side or the stomach side of the field edge receiver 4. The body portion 61 is formed in a substantially flat plate shape arranged in parallel with the vertical surface, and is subjected to reinforcement processing such as a rib. The upper portion of the trunk portion 61 has substantially the same width as the width of the field edge 5, but the lower portion of the trunk portion 61 has a width of the opening 54 of the field edge 5 so as to be fitted into the opening 54 of the field edge 5. The widths are substantially the same or narrower than the width of the opening 54.

  The field edge locking part 62 is a part that is fitted into the inside of the field edge 5 from the opening 54 of the field edge 5 and locked to the lip part 53. The field edge locking part 62 protrudes from the lower end part of the body part 61 to both sides in the horizontal direction so as to be locked to the lip part 53, and the tip part widens upward in the vertical direction so as to be on the field edge receiver 4 side. It is folded back. For this reason, the field edge locking part 62 is inserted into the inside of the field edge 5 from the opening 54 of the field edge 5, and the field edge locking part 62 is fitted by fitting the lip part 53 to the field edge locking part 62. It can be locked to the lip 53. Since the field edge locking part 62 is folded back to the field edge receiver 4 side, the field edge locking part 62 and the lip part 53 are locked in a wide area.

  The upper locking part 63 is a part that goes around the upper plate part 42 of the field receiver 4 and is locked to the field receiver 4. The upper locking part 63 is bent at a substantially right angle from the upper end edge of the body part 61 toward the field edge receiver 4 and is brought into contact with the upper plate part 42 of the field edge receiver 4, and the upper plate part 64. And an upper locking piece 65 bent at a substantially right angle from the front end edge. As shown in FIGS. 3A and 3B, the upper locking piece 65 can be bent with respect to the upper plate portion 64.

  And when attaching the clip 6 from the back side of the field edge receiver 4, as shown in FIG. 4, the upper locking piece 65 is folded back from the front edge of the upper plate part 42 in the field edge receiver 4 to the upper plate part. By being hooked on 42, the upper locking portion 63 is locked to the field receiver 4. On the other hand, when the clip 6 is attached from the ventral side of the field edge receiver 4, as shown in FIG. 5, the upper locking piece 65 is folded vertically downward from the front edge of the upper plate portion 42 in the field edge receiver 4 and the side plate. The upper locking portion 63 is locked to the field edge receiver 4 by being brought into contact with the portion 41.

  The clip reinforcing bracket 7 is composed of two types: a double clip reinforcing bracket 7a that reinforces the double clip 6a, and a single clip reinforcing bracket 7b that reinforces the single clip 6b. For this reason, the double clip reinforcing bracket 7a is formed to be wide according to the width of the double clip 6a, and the single clip reinforcing bracket 7b is formed to be narrow according to the width of the single clip 6b. The double clip reinforcing bracket 7a and the single clip reinforcing bracket 7b are basically the same except that the width is different. Therefore, the double clip reinforcing bracket 7a and the single clip reinforcing bracket 7b are combined unless otherwise specified. This will be described simply as the clip reinforcing bracket 7.

  6A and 6B are diagrams showing a double clip reinforcing metal fitting, wherein FIG. 6A is a perspective view, FIG. 6B is a side view, and FIG. 6C is a rear view. 7A and 7B are views showing a single clip reinforcing metal fitting, wherein FIG. 7A is a perspective view, FIG. 7B is a side view, and FIG. 7C is a rear view. As shown in FIGS. 6 and 7, the clip reinforcing bracket 7 is made of a metal material such as stainless steel or aluminum, and has a body portion 71 disposed on the side of the field edge receiver 4, and a lower portion of the body portion 71. And an upper plate portion 73 formed on the upper portion of the body portion 71 and covering the upper surface of the clip 6.

  The body portion 71 is a portion disposed on the opposite side of the body portion 61 of the clip 6 among the back side of the field edge receiver 4 and the abdomen side of the field edge receiver 4. The trunk | drum 71 is formed in the substantially flat plate shape parallel to a vertical surface. The body 71 may be subjected to reinforcement processing such as a rib. The upper portion of the trunk portion 71 is substantially the same width as the width of the field edge 5, but the lower portion of the trunk portion 71 is substantially the same width as the width of the opening 54 so as to be fitted into the opening 54 of the field edge 5. Alternatively, the width is narrower than the width of the opening 54.

  The field edge locking part 72 is a part that is fitted into the inside of the field edge 5 from the opening 54 of the field edge 5 and locked to the lip part 53. The field edge locking part 72 is bent at a substantially right angle from the lower end edge of the body part 71 to the opposite side of the field edge receiver 4 and extends in the horizontal direction. The field edge locking portion 72 includes a flat base plate portion 74 disposed parallel to the horizontal plane, and a pair of concave surface portions 75 formed at both ends of the base plate portion 74 and recessed downward in the vertical direction. And a pair of rising portions 76 that are formed at the leading edge of each concave surface portion 75 and rise in the vertical direction while spreading in the horizontal direction. The base plate portion 74 of the double clip reinforcing bracket 7a is reinforced with ribs or the like.

  The width of the base plate portion 74 is slightly narrower than the width of the opening 54 of the field edge 5. The distance between the pair of concave portions 75 is substantially the same as the distance between the tips of the pair of lip portions 53. The outer dimension of the pair of rising parts 76 is smaller than the inner dimension of the pair of side plate parts 52 at the field edge 5. Thus, the field edge locking portion 72 is inserted into the inside of the field edge 5 from the opening 54 of the field edge 5, and the lip portion 53 is fitted to the concave surface portion 75. It is possible to lock to.

  The upper plate portion 73 is a portion that covers the upper plate portion 42 (the upper surface of the clip 6) of the clip 6. The upper plate portion 73 is formed in a flat plate shape that is bent at a substantially right angle from the upper end edge of the body portion 71 toward the field edge receiver 4 and is arranged in parallel with the horizontal plane. For this reason, the clip reinforcing bracket 7 is formed in a substantially Z-shaped cross section in which the field edge locking portion 72 and the upper plate portion 73 extend in the opposite direction with respect to the body portion 71. The upper plate portion 73 is formed with an elastic locking piece 77 that is locked to the clip 6.

  The elastic locking piece 77 is cantilevered by the upper plate portion 73 by punching out a part of the upper plate portion 73, and obliquely downward from the upper plate portion 73 toward the body portion 71, that is, the upper plate portion 73. It extends diagonally downward from the distal end side toward the proximal end side. The elastic locking piece 77 has a base end portion disposed on the distal end side of the upper plate portion 73 connected to the upper plate portion 73, and a distal end portion disposed on the proximal end side of the upper plate portion 73 as a free end. Is bent downward. The distance L between the free end of the elastic locking piece 77 and the body portion 71 is the same as the length l (see FIGS. 4 and 5) of the upper plate portion 64 of the clip 6 or the upper plate portion of the clip 6. The dimension is slightly longer than the length l of 64.

  For this reason, when the clip reinforcing bracket 7 is pushed into the clip 6 from the front end side of the upper plate portion 73, the elastic locking piece 77 is pushed upward in the vertical direction, and the clip 6 is formed between the elastic locking piece 77 and the body portion 71. The elastic engagement piece 77 is engaged with the body 61 of the clip 6. Note that the upper plate portion 64 has a length longer than the length l so that the tip of the upper plate portion 73 protrudes from the clip 6 when the clip reinforcing bracket 7 is fitted into the clip 6.

  The number of the elastic locking pieces 77 is appropriately selected according to the width of the clip reinforcing bracket 7 and the like, but in this embodiment, the double clip reinforcing bracket 7a is wider than the single clip reinforcing bracket 7b. Therefore, one elastic locking piece 77 is formed on the single clip reinforcing bracket 7b, and two elastic locking pieces 77 are formed on the double clip reinforcing bracket 7a.

  Next, a method for fitting the clip reinforcing bracket 7 into the clip 6 will be described with reference to FIGS. FIG. 8 is a view for explaining a method of fitting the clip reinforcing metal fitting into the clip. FIGS. 9A and 9B are views showing a state in which the clip reinforcing metal fitting is fitted into a clip attached to the back side of the field edge receiver, where FIG. 9A is a front view, FIG. 9B is a side view, and FIG. 9C is a rear view. Respectively. FIGS. 10A and 10B are views showing a state in which the clip reinforcing metal fitting is fitted into the clip attached to the ventral side of the field edge receiver, where FIG. 10A is a front view, FIG. 10B is a side view, and FIG. Respectively. In addition, in FIG. 8, the case where the single clip reinforcement metal fitting 7b is inserted in the single clip 6b attached to the back side of the field receiver 4 is shown.

  First, as shown in FIG. 8A, the field edge locking portion 72 of the clip reinforcing bracket 7 is inserted into the field edge 5 from the opening 54 of the field edge 5. At this time, since the width of the field edge locking portion 72 is wider than the width of the opening 54, the field edge locking portion 72 is brought into the opening 54 in a state where the clip reinforcing metal 7 is inclined with respect to the extending direction of the field edge 5. insert. Then, the inclination of the clip reinforcing metal member 7 is returned to the original position, and the field edge locking portion 72 is locked to the lip portion 53 so that the tip of the lip portion 53 is fitted to the concave surface portion 75 of the field edge locking portion 72.

  Next, the clip reinforcing metal fitting 7 is rotated in a direction in which the clip reinforcing metal fitting 7 is close to the field edge receiving member 4 with the engaging position where the field edge engaging part 72 is engaged with the lip part 53 as an axis. Then, as shown in FIG. 8B, since the elastic locking piece 77 extends obliquely downward from the upper plate portion 73 of the clip reinforcing bracket 7, the elastic locking piece 77 comes into contact with the clip 6.

  Therefore, as shown in FIG. 8C, when the clip reinforcing bracket 7 is further rotated, the elastic locking piece 77 is pushed up by the clip 6 and advances on the upper surface of the upper plate portion 64 of the clip 6, thereby the clip reinforcing bracket. 7 rotation proceeds.

  Then, as shown in FIG. 8D, when the clip reinforcing bracket 7 is rotated until the elastic locking piece 77 exceeds the clip 6, the elastic locking piece 77 released from the upper surface of the clip 6 is spring-backed. While being pushed down to the original state, the upper plate portion 73 covers the upper surface of the upper plate portion 64, and the tip of the elastic locking piece 77 is caught by the body portion 61 of the clip 6.

  Accordingly, as shown in FIGS. 9 and 10, the clip 6, the field edge receiver 4, and the lip part 53 of the field edge 5 are sandwiched between the upper plate part 73 and the field edge locking part 72 of the clip reinforcing bracket 7. In addition, since the clip 6 and the field edge receiver 4 are sandwiched between the elastic locking piece 77 of the clip reinforcing metal 7 and the body portion 71, the clip 6, the field edge receiver 4 and the field edge 5 are in the horizontal direction and the vertical direction. Are firmly connected to each other.

  As described above, according to the clip reinforcing bracket 7 according to the present embodiment, the field edge locking portion 72 enters the inside of the field edge 5 and is locked to the lip portion 53, and the clip reinforcement metal fitting 7 is fitted to the clip 6. The clip 6, the field edge receiver 4, and the field edge 5 can be firmly connected by a simple operation of inserting the clip 6. Therefore, the clip 6 has good workability and low cost while improving the horizontal and vertical earthquake resistance. The connection between the field edge receiver 4 and the field edge 5 can be reinforced. Further, since it is not necessary to change the shape of the clip 6 itself, and the clip reinforcement bracket 7 can be fitted in the state in which the field edge receiver 4 and the field edge 5 are connected by the clip 6, the clip can be used in remodeling or reinforcement work. 6 can be reinforced.

  Further, since the clip reinforcing bracket 7 can have a simple shape, the clip reinforcing bracket 7 can be thickened to further improve the strength of the ceiling base member 1. And since the latch with respect to the lip | rip part 53 is performed by two members, the clip 6 and the clip reinforcement metal fitting 7, it can suppress that the load which acts on the lip | rip part 53 disperses | distributes and the lip | rip part 53 rises. In addition, since the field edge locking part 62 is bent at a substantially right angle to the opposite side of the field edge receiver 4 and extends in the horizontal direction, the field edge locking part 72 and the lip part 53 are locked in a wide area. Further, the rising of the lip 53 can be further suppressed.

  Further, since the clip reinforcing bracket 7 has a substantially Z-shaped cross section by extending the field edge locking portion 72 and the upper plate portion 73 in opposite directions, the field edge locking portion 72 is locked to the lip portion 53. The clip reinforcing bracket 7 can be fitted into the clip by rotating about the locking position.

  Then, by projecting the upper plate portion 73 from the clip 6, it is possible to hook the upper plate portion 73 with the clip reinforcing bracket 7 fitted in the clip, and therefore workability when removing the clip reinforcing bracket 7. Can be improved. In this case, the upper plate portion 73 projecting from the clip 6 may be easily held by bending or the like.

  Further, since the elastic locking piece 77 can be formed by a simple processing method of punching out a part of the upper plate portion 73, the manufacturing cost of the clip reinforcing bracket 7 can be reduced.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, in the above embodiment, it has been described that two elastic locking pieces 77 are formed on the double clip reinforcing bracket 7a, and one elastic locking piece 77 is formed on the single clip reinforcing bracket 7b. The elastic locking piece may be formed.

  Moreover, in the said embodiment, although demonstrated as what forms the elastic locking piece 77 by stamping out a part of the upper-plate part 73 of the clip reinforcement metal fitting 7, for example like the clip reinforcement metal fitting 9 shown in FIG. The elastic locking piece 97 may be formed by bending the top end of the upper plate portion 93 and turning it back obliquely downward toward the body portion 71. Thus, since the elastic locking piece 97 can be formed by a simple processing method of bending the tip of the upper plate portion 93, the manufacturing cost of the clip reinforcing bracket 9 can be reduced.

  Next, examples of the present invention will be described.

[Experimental conditions]
First, the experimental conditions of this example will be described.

  In this example, a gymnasium model as shown in FIG. 12 was created in response to the ceiling of the gymnasium falling due to the Geiyo earthquake of March 24, 2001. In FIG. 12, for the sake of convenience, only the roof beam is displayed among the structures of the gymnasium, but actually, a model of all the structural members of the gymnasium was created. In this gymnasium model, the span direction is the x direction, the column direction is the y direction, and the vertical (up and down) direction is the z direction.

  Next, a central area α (see FIG. 12) of the roof where vertical vibration is significantly amplified is cut out from the gymnasium model, and an input wave (see FIG. 13) of the ground motion measured by the Geiyo earthquake was input to this gymnasium model. The response wave in the central region α was simulated. The central region α is a region where both ends in the y direction are fixed to the beam. FIG. 13 is a diagram showing the ground motion of the Geiyo earthquake, which is an input wave, where (a) is the input acceleration of the ground motion in the x direction, (b) is the input acceleration of the ground motion in the y direction, and (c) is the z direction. The input acceleration of the seismic motion at is shown respectively. FIG. 14 is a diagram showing a response wave of the roof (central region α), where (a) is the roof response acceleration in the x direction, (b) is the roof response acceleration in the y direction, and (c) is the roof in the z direction. The response acceleration is shown respectively.

  Next, a simulated ceiling in the central region α is created as Examples 1 to 5 and Comparative Examples 1 to 5, and each simulated ceiling of Examples 1 to 5 and Comparative Examples 1 to 5 is fixed to a frame body made of a steel frame. The frame was placed on a shaking table that generates a simulated earthquake. The frame was a rectangular parallelepiped having a length in the x direction of 6250 mm, a length in the y direction of 6250 mm, and a height in the z direction of 3550 mm using a steel frame. And each simulated ceiling of Examples 1-5 and Comparative Examples 1-5 was restrained at both ends in the x direction and fixed to the frame.

  Although the actual ceiling is inclined, the present inventors conducted another experiment, and when the ceiling is installed obliquely and when the ceiling is installed horizontally, the magnitude of vibration acting on the ceiling is large. In this example, the simulated ceilings of Examples 1 to 5 and Comparative Examples 1 to 5 were installed horizontally.

  Next, the vibration table input waves of 32% and 16% of the response wave described above were input to the vibration table, and the state change of the clip or the hanger was observed. In addition, since the response wave of the y direction component in the central region α cannot be reproduced with high accuracy, in this embodiment, as shown in FIG. 15, the vibration table input wave is changed to only the x direction component and the z direction component of the response wave. did. FIG. 15 shows a shaking table input wave of 32% of the response wave, where (a) shows the input acceleration of the shaking table input wave in the x direction, and (b) shows the input acceleration of the shaking table input wave in the z direction. Show.

[Example 1 and Comparative Example 1]
16 is an elevation view showing the simulated ceiling of Example 1 and Comparative Example 1, and FIG. 17 is a plan view showing the simulated ceiling of Example 1 and Comparative Example 1. FIG.

  As shown in FIG. 16, each simulated ceiling of Example 1 and Comparative Example 1 was a flat ceiling suspended to a length of 800 mm from a frame serving as a building frame. Then, as shown in FIG. 17, two simulated ceilings E <b> 1 of Example 1 and simulated ceiling F <b> 1 of Comparative Example 1 are provided side by side in the horizontal direction.

  Each of the simulated ceilings E1 and F1 of Example 1 and Comparative Example 1 has a length of 5000 mm in the x direction and a length of 2700 mm in the y direction, and each includes 24 suspension bolts 2 and hangers 3. Holds the four field ledges 4, connects the five double field rims 5 a to the field ledge 4 with 20 double clips 6 a, and ties the 10 single field edges 5 b with 40 single clips 6 b Connected to the receiver 4, two ceiling materials A were stacked and screwed to the edge 5. A 9.5 mm thick gypsum board was used for each ceiling material A. And in the simulated ceiling E1 of Example 1, the double clip reinforcement metal fitting 7a was attached to all the double clips 6a, and the single clip reinforcement metal fitting 7b was attached to all the single clips 6b. In addition, the clip reinforcement metal fitting was not attached to the simulation ceiling F1 of the comparative example 1.

  Then, both ends of each simulated ceiling E1, F1 in the x direction are constrained by a restraining material fixed to the frame, and a clearance of 75 mm is provided between the end of each simulated ceiling E1, F1 in the y direction and the frame. The clearance of 400 mm was provided between the simulated ceiling E1 of Example 1 and the simulated ceiling F1 of Comparative Example 1.

[Example 2 and Comparative Example 2]
FIG. 18 is an elevation view showing the simulated ceiling of Example 2 and Comparative Example 2, and FIG. 19 is a plan view showing the simulated ceiling of Example 2 and Comparative Example 2.

  As shown in FIG. 18, each simulated ceiling of Example 2 and Comparative Example 2 is a flat ceiling suspended to a length of 1500 mm from a frame that is a building frame, and has an oblique backrest (brace) B. Attached. Then, as shown in FIG. 19, two simulated ceilings E2 of Example 2 and simulated ceilings F2 of Comparative Example 2 are provided side by side in the horizontal direction.

  Each of the simulated ceilings E2 and F2 of Example 2 and Comparative Example 2 has a length in the x direction of 5000 mm and a length in the y direction of 2700 mm, and each of the four ceiling bolts 2 and the hanger 3 has four pieces. Hold the field edge receiver 4, connect the four braces B to the suspension bolt 2 to prevent slanting, connect the five double field edges 5 a to the field edge receiver 4 with 20 double clips 6 a, 10 single field edges 5b were connected to the field edge receiver 4 with 40 single clips 6b, and two ceiling materials A were laminated and screwed to the field edge 5. A 9.5 mm thick gypsum board was used for each ceiling material A. And in the simulated ceiling E2 of Example 2, the double clip reinforcement metal fitting 7a was attached to all the double clips 6a, and the single clip reinforcement metal fitting 7b was attached to all the single clips 6b. In addition, the clip reinforcement metal fitting was not attached to the simulation ceiling F2 of the comparative example 2.

  Then, both ends of each simulated ceiling E2, F2 in the x direction are constrained by a restraining material fixed to the frame, and a clearance of 75 mm is provided between the ends of each simulated ceiling E2, F2 in the y direction and the frame. The clearance of 400 mm was provided between the simulated ceiling E2 of Example 2 and the simulated ceiling F2 of Comparative Example 2.

[Example 3 and Comparative Example 3]
20 is an elevation view illustrating the simulated ceiling of Example 3 and Comparative Example 3, and FIG. 21 is a plan view illustrating the simulated ceiling of Example 3 and Comparative Example 3.

  As shown in FIG. 20, each of the simulated ceilings of Example 3 and Comparative Example 3 has a flat ceiling suspended to a length of 800 mm from a frame that is a building frame, and an arc shape having a radius of 3000 mm from the flat ceiling. A curved ceiling that is bent to a position of 2400 mm below the frame body, and a horizontal steady rest (horizontal brace) B and a diagonal steady rest (brace) C are attached to the pocket of the curved ceiling. Then, as shown in FIG. 21, two simulated ceilings E3 of Example 3 and simulated ceilings F3 of Comparative Example 3 were provided side by side in the horizontal direction.

  Each of the simulated ceilings E3 and F3 of Example 3 and Comparative Example 3 has a length in the x direction of 5000 mm and a length in the y direction of 2700 mm. The suspension bolt 2 which holds the field edge holder 4 and has a horizontal brace C of 1500 mm or more is divided into two stages, and the two braces B are connected to the suspension bolt 2 to prevent slanting, and 28 double clips 6a connects 7 double edge 5a to the edge receiver 4, 44 single clips 6b connects 11 single edge 5b to the edge receiver 4, and laminates two ceiling materials A Screwed to the field edge 5. A 9.5 mm thick gypsum board was used for each ceiling material A. And in the simulated ceiling E3 of Example 3, the double clip reinforcement metal fitting 7a was attached to all the double clips 6a, and the single clip reinforcement metal fitting 7b was attached to all the single clips 6b. In addition, the clip reinforcement metal fitting was not attached to the simulation ceiling F3 of the comparative example 3.

  Then, both ends of each simulated ceiling E3, F3 in the x direction are constrained by a restraining material fixed to the frame, and a clearance of 75 mm is provided between the ends of each simulated ceiling E3, F3 in the y direction and the frame. A clearance of 400 mm was provided between the simulated ceiling E3 of Example 3 and the simulated ceiling F3 of Comparative Example 3.

[Example 4 and Comparative Example 4]
FIG. 22 is an elevation view showing the simulated ceiling of Example 4 and Comparative Example 4, and FIG. 23 is a plan view showing the simulated ceiling of Example 4 and Comparative Example 4.

  As shown in FIG. 22, each simulated ceiling of Example 4 and Comparative Example 4 is a flat ceiling suspended to a length of 2400 mm from a frame that is a building frame, and a horizontal steady rest ( Horizontal brace (B) and diagonal steady rest (brace) C were attached. Then, as shown in FIG. 23, two simulated ceilings E4 of Example 4 and simulated ceilings F4 of Comparative Example 4 are provided side by side in the horizontal direction.

  Each of the simulated ceilings E4 and F4 in Example 4 and Comparative Example 4 has a length in the x direction of 5000 mm and a length in the y direction of 2700 mm, and each of the four ceiling bolts 2 and hangers 3 has four pieces. Holding the edge holder 4 and dividing the suspension bolt 2 that is 1500 mm or more in the horizontal brace C into two stages, and connecting the eight braces B to the suspension bolts 2 at each stage to prevent slant 20 The five double field edges 5a are connected to the field edge receiver 4 by the double clip 6a, and 10 single field edges 5b are connected to the field edge receiver 4 by 40 single clips 6b, and two pieces of ceiling material A are connected. Laminated and screwed to the edge 5. A 9.5 mm thick gypsum board was used for each ceiling material A. And in the simulated ceiling E4 of Example 4, the double clip reinforcement metal fitting 7a was attached to all the double clips 6a, and the single clip reinforcement metal fitting 7b was attached to all the single clips 6b. In addition, the clip reinforcement metal fitting was not attached to the simulation ceiling F4 of the comparative example 4.

  Then, both ends of each simulated ceiling E4, F4 in the x direction are constrained by a restraining material fixed to the frame, and a clearance of 75 mm is provided between the end of each simulated ceiling E4, F4 in the y direction and the frame. The clearance of 400 mm was provided between the simulated ceiling E4 of Example 4 and the simulated ceiling F4 of Comparative Example 4.

[Example 5 / Comparative Example 5]
24 is an elevation view showing the simulated ceiling of Example 5 and Comparative Example 5, FIG. 25 is a plan view showing the simulated ceiling of Example 5, and FIG. 26 is a plan view showing the simulated ceiling of Comparative Example 5. is there.

  As shown in FIG. 24, each simulated ceiling of Example 5 and Comparative Example 5 was a flat ceiling suspended to a length of 1500 mm from a frame that is a building frame. And as shown in FIG.25 and FIG.26, since the simulated ceiling E5 of Example 5 and the simulated ceiling F5 of the comparative example 5 employ | adopted what is larger than Examples 1-4 and Comparative Examples 1-4, Only one simulated ceiling is fixed to the frame, and the simulated ceiling E5 and the simulated ceiling F5 are separately fixed to the frame.

  Each of the simulated ceilings E5 and F5 of Example 5 and Comparative Example 5 has a length of 5000 mm in the x direction and a length of 5000 mm in the y direction. Holds the field edge holder 4 of the book, connects the 5 double field edges 5a to the field edge receiver 4 with 30 double clips 6a, and forms the field edge of 10 single field edges 5b with 60 single clips 6b. Connected to the receiver 4, four ceiling materials A were laminated and screwed to the edge 5. A 9.5 mm thick gypsum board was used for each ceiling material A. As shown in FIG. 25, in the simulated ceiling E5 of Example 5, the double clip reinforcing bracket 7a was attached to all the double clips 6a, and the single clip reinforcing bracket 7b was attached to all the single clips 6b. In addition, as shown in FIG. 26, the clip reinforcement metal fitting was not attached to the simulation ceiling F5 of the comparative example 5. FIG.

  And the clearance of 475 mm was provided between the all ends of each simulated ceiling E5, F5 and the frame.

[Experimental result]
Next, the frame on which the simulated ceilings of Examples 1 to 5 and Comparative Examples 1 to 5 are installed is placed on a vibration table. For Examples 1 to 4 and Comparative Examples 1 to 4, the response wave is 32. % Of the vibration table input wave was input to the vibration table, and in Example 5 and Comparative Example 5, the vibration table input wave of 16% of the response wave was input to the vibration table. Then, the state changes of clips and hangers before and after the input of the vibration table input wave were observed.

  FIG. 27 is a chart showing experimental results, where (a) shows a comparative example and (b) shows an example. As shown in FIG. 27, in Comparative Example 1, 23 clips 6 were detached and 5 hangers 3 were opened, whereas in Example 1, there was no particular damage. In Comparative Example 2, 22 clips 6 were disengaged, 4 hangers 3 were opened, and cracks occurred in the gypsum board of the ceiling material A, whereas in Example 2, there was no damage. In Comparative Example 3, 11 clips 6 were disengaged and horizontal brace C was disengaged. In Example 3, one clip reinforcing bracket 7 was disengaged and horizontal brace C was disengaged, but there was no particular damage. . In Comparative Example 4, 20 clips 6 were disconnected and 5 hangers 3 were opened, whereas in Example 4, there was no particular damage. In Comparative Example 5, 36 clips 6 were detached, whereas in Example 5, there was no particular damage.

  From the results of these experiments, it is proved that by attaching the clip reinforcing bracket 7, the detachment of the clip 6 and the opening of the hanger 3 are remarkably suppressed, and the horizontal and vertical earthquake resistance of the ceiling base member 1 is improved. It was done.

DESCRIPTION OF SYMBOLS 1 ... Ceiling base member, 2 ... Suspension bolt, 3 ... Hanger, 4 ... Field edge receiver, 41 ... Side plate part, 42 ... Upper plate part, 43 ... Lower plate part, 5 ... Field edge, 5a ... Double field edge, 5b ... single edge, 51 ... bottom plate part, 52 ... side plate part, 53 ... lip part, 54 ... opening, 6 ... clip, 6a ... double clip, 6b ... single clip, 61 ... body part, 62 ... field edge locking part , 63 ... Upper locking part, 64 ... Upper plate part, 65 ... Upper locking piece, 7 ... Clip reinforcing bracket, 7a ... Double clip reinforcing bracket, 7b ... Single clip reinforcing bracket, 71 ... Body, 72 ... Field edge Locking part, 73 ... upper plate part, 74 ... base plate part, 75 ... concave surface part, 76 ... rising part, 77 ... elastic locking piece, 93 ... upper plate part, 9 ... clip reinforcing bracket, 97 ... elastic locking Piece, A ... Ceiling material, B ... Brace, C ... Horizontal brace, E1 ... Simulated ceiling of Example 1, 2 ... Simulated ceiling of Example 2, E3 ... Simulated ceiling of Example 3, E4 ... Simulated ceiling of Example 4, E5 ... Simulated ceiling of Example 5, F1 ... Simulated ceiling of Comparative Example 1, F2 ... Comparative Example 2 F3: Simulated ceiling of Comparative Example 3, F4: Simulated ceiling of Comparative Example 4, F5: Simulated ceiling of Comparative Example 5.

Claims (6)

In order to connect the field edge receiver suspended from the building frame and the field edge, which is arranged below the field edge receiver and to which the ceiling material is attached, in the orthogonal direction, it is locked to the field edge and the field edge A clip reinforcing bracket that reinforces a clip that wraps upward from the side of the receiver and is locked to the edge receiver,
A body portion disposed on the side opposite to the clip and opposite to the clip;
A field edge locking part disposed at a lower part of the body part and locked to the field edge;
An upper plate portion disposed on an upper portion of the body portion and covering an upper surface of the clip;
Have
The upper plate portion is formed with an elastic locking piece extending obliquely downward toward the body portion and sandwiching the clip and the field edge receiver with the body portion. Hardware. The field edge is formed in a substantially C-shaped cross section including a pair of lip portions bent inward from a pair of opposing side plate portions,
The clip reinforcing bracket according to claim 1, wherein the field edge locking portion is locked to the pair of lip portions from the inside of the field edge.   The clip reinforcing bracket according to claim 2, wherein the field edge locking portion and the upper plate portion extend in directions opposite to each other.   The clip reinforcing bracket according to any one of claims 1 to 3, wherein the upper plate portion protrudes from the clip.   The clip reinforcing bracket according to any one of claims 1 to 4, wherein the elastic locking piece is formed by punching a part of the upper plate portion. The clip reinforcing bracket according to any one of claims 1 to 4, wherein the elastic locking piece is formed by bending a tip of the upper plate portion.

Images