JP2008215007A - Ct clip for system ceiling - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate a mounting failure such as detachment or unstable attachment of a CT clip used in installing a cross bar on a T-bar of a system ceiling. <P>SOLUTION: A spacer 2 constituting the CT clip A together with a clip body 1 is formed in U-shape, and leg pieces 15 of the clip body 1 are held by retaining projection pieces 24 arranged on both sides of respective hanging pieces 22, while the retaining projection pieces 24 are stranded on stranding protrusions 18 arranged at the leg pieces 15 of the clip body 1 when the spacer 2 is lowered, thus ensuring an opening stop function of the leg pieces 15. Further, receiving holes 25 are formed in the lower ends of the hanging pieces 22, and a T-bar head 31 is inserted in the receiving holes 25 to hold the T-bar head 31 at its front and rear side faces, thus ensuring a holding function of the T-bar. The mounting failure caused by opening of the leg pieces 15 and the dispersion of the T-bar can thereby be eliminated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a CT clip for a system ceiling used for crossing and arranging a cross bar for installing equipment members such as fire extinguishing sprinklers on a T bar used for forming a system ceiling.

  As a CT clip used for the formation of this kind of system ceiling (also called an unwinding band or its clip), a total of four leg pieces facing in the front-rear direction in a pair in the width direction so as to form a gate shape on the top plate are used. And a U-shaped groove for receiving the T-bar head along the width direction between the leg pieces and a downward opening for penetrating the cross bar that intersects the U-shaped groove in the middle of the width direction. A clip body provided with a locking piece inclined upward toward the U-shaped groove at the lower end of some leg pieces, a holding screw that can be protruded and retracted toward the downward opening on the top plate, and a downward direction of the clip body It is known that there is a spacer that is slidably arranged in the opening up and down and is provided with a spacer interposed between the T-bar head and the crossing bar. For example, the spacer includes a pair of vertical pieces in the width direction, V-shaped connecting vertical pieces And a pair of upper and lower bulges protruding in the width direction at the rear end of the vertical piece and protruding in the width direction at the front end of the vertical piece. It is supposed to be equipped with a protruding projection, and the spacer is arranged in the downward opening of the clip body so as to form a flat M shape in the front-rear direction, and the rear protruding piece and the front protruding protrusion are hooked on the edge of the clip leg. However, it is supposed to guide the vertical slide of the spacer.

  This CT clip hooks and holds the locking piece of the leg piece on the lower surface of the T-bar head of the system ceiling arrangement, and receives and clamps the T-bar head below the U-shaped groove of the clip body. A cross bar is placed on the top of the T bar through the spacer above the downward opening of the clip main body, and the cross bar is pressed downward by a top plate holding screw. In other words, in the construction method using the CT clip, for example, the CT clip is arranged above the T bar horizontally supported by the suspension bolt, the CT clip is pushed down, and the T bar is placed in the U-shaped groove. The CT clip is placed on the T-bar so that the head is received and fitted, the spacer is slid downward so as to contact the head of the T-bar, and the clip body is raised, and placed on the leg piece. Locking Is hooked and locked to the bottom surface of the T-bar head that is recessed in a horizontal or V-shape, and the cross bar is passed through the space formed above the downward opening. By pressing the upper surface of the cross bar downward, the cross bar is fixed by the top plate and the spacer.

Catalog “Piping support bracket 2006-2007”, page 113, issued by Niei Intec Co., Ltd., September 2006

  In general, with such a construction method, the cross bar can be installed relatively easily and reliably with respect to the T bar. On the other hand, when the top plate holding screw is tightened, the cross bar is hooked on the lower surface of the T bar head. As a result of the locking piece being released from the head and the leg piece opening in an expanded manner, troubles such as the CT clip dropping from the T-bar or the CT clip tilting forward or backward relative to the T-bar And the CT clip swings with respect to the T-bar and is unstablely attached, and there is a problem that the cross bar cannot be securely held between adjacent CT clips. Yes, such troubles hinder the smooth construction of the system ceiling formation and cause a significant reduction in the work efficiency of the work, so it is necessary to eliminate these troubles.

  The present invention has been made in view of such circumstances, and the problem to be solved is to eliminate dropping from the T-bar and unstable mounting to the T-bar, so that the T-bar is always stable and An object of the present invention is to provide a CT clip for a system ceiling that can be securely attached to secure the work efficiency of the system ceiling forming work as high as possible.

  As a result of examining the cause of the trouble occurrence along the above-mentioned problems, the cause of the CT clip falling from the T-bar is that the cross-sectional shape of the T-bar including the head differs depending on the manufacturer. The lower surface of the head to be hooked and locked also has a downwardly or upwardly slanted V-shape, a horizontal one, etc. Therefore, it is impossible to reliably lock the locking piece to the lower surface of the head. In this way, when the latching lock is inadequate, and the top plate presser screw is tightened to fix the cross bar, the pressing force acts to expand the leg of the CT clip back and forth. Therefore, since the catching lock of the locking piece is released and the CT clip which is not fixed on the T bar starts to play, the CT clip falls from the T bar. , Generally made of steel Then, when this is placed on the T-bar, the locking piece installed on each leg piece passes through the head of the T-bar, causing plastic deformation so that the leg piece expands back and forth. Furthermore, the cause of the CT clip coming off is further promoted. On the other hand, the reason for the unstable attachment of the CT clip to the T-bar is that the T-bar is made of steel and is a long molded product. Since the head has a hollow rectangular cross section and is relatively narrow, there is variation in molding. For example, the upper surface of the head that should be horizontal is inclined in the front-rear direction. Although there are many cases where accuracy is not obtained, CT clips are formed with relatively high accuracy on the premise of the manufacturer's design shape. For example, if the top of the T-bar head is inclined, the presser screw When tightening the cross bar Then, the spacer receives the pressing force and presses against the head of the T-bar to be inclined, and the leg pieces of the clip body, in particular, the leg pieces located on the opposite side of the inclination of the spacer are expanded in the front-rear direction. It has been found that the locking piece is disengaged from the bottom surface of the T-bar head, and the CT clip is attached to the T-bar in a cantilevered manner, resulting in lack of stability of the attachment.

  As a result of further investigation based on this cause, in order to solve the above-mentioned trouble, even if the pressing force by tightening the presser screw is received, the leg piece of the clip body is held and directed in the front-rear direction. It is effective to take measures to prevent the leg piece from spreading, and for this purpose, a spacer that is slidably arranged in the downward opening of the clip body is formed in a U-shape in the front-rear direction, as in the downward opening. The spacer is provided with hanging pieces at both ends in the width direction, and the leg pieces of the clip body are sandwiched between the pair of hanging pieces in the front-rear direction to expand in the front-rear direction. It is assumed that the clamping protrusions to be blocked are formed, so that the structure of the spacer can be simplified as much as possible to exert the function of preventing the leg pieces from opening as much as possible, and welding and complicated processing are performed. This Without the simple manner in the as much as possible simplified performing press working on a metal plate to obtain a finding that can be mass-produced spacer having the above-described clamping protrusion.

  The present invention has been made on the basis of such knowledge. That is, the invention according to claim 1 comprises a total of four leg pieces opposed to each other in the width direction so as to form a gate shape on the top plate. And a U-shaped groove for receiving the T-bar head along the width direction between the leg pieces and a downward opening for penetrating the cross bar that intersects the U-shaped groove in the middle of the width direction. A clip body provided with a locking piece inclined upward toward the U-shaped groove at the lower end of some leg pieces, a holding screw that can be protruded and retracted toward the downward opening on the top plate, and a downward direction of the clip body A CT clip, which is provided in the opening so as to be slidable up and down and is interposed between the T-bar head and the crossing bar and used to form a system ceiling, wherein the spacer is connected to the top plate and the downward opening. So that it fits in And a pair of hanging pieces arranged at both ends in the width direction, and projecting in the width direction from the front and rear ends of the pair of hanging pieces, respectively, so that the leg pieces of the clip body are respectively held in the front and rear directions from the inside of the downward opening. The system ceiling CT clip is characterized by being provided with clamping protrusions on both the front and rear sides that are clamped in a holding shape to prevent the leg pieces from opening.

  On the other hand, even if the upper surface of the T-bar has the above-mentioned variation, there is almost no variation on the front and back surfaces (which may be called both side surfaces), and the parallel verticality is generally secured. To attach the CT clip to the T-bar so as not to depend on the upper surface of the head so as to utilize the front and rear surfaces, it is effective in avoiding the influence of the variation seen on the upper surface. Since the spacer has a pair of hanging pieces at both ends in the width direction, a receiving hole for fitting the T-bar head is arranged on the hanging piece, and the head is fitted and received by the receiving hole, If the front and rear surfaces of the head are held between the open ends of the receiving holes, a gap due to the inclination of the upper surface is formed at the upper end of the receiving hole, but the positional relationship between the spacer and the T bar head, that is, the T bar Suitable for the positional relationship between CT clip and CT clip In this case, the receiving hole is formed by notching the intermediate portion in the front-rear direction of the pair of hanging pieces, and forming a notch hole having a front-rear width corresponding to the T-bar head on the hanging piece. If it is formed by arranging, the shape of the spacer is used and a press process suitable for mass production is also used. It has been found that the attachment to the bar can have a higher degree of stability.

  Based on this knowledge, the invention according to claim 2 is characterized in that the pair of hanging pieces in the spacer is not cut out in the front-rear direction intermediate portion according to the front-rear width of the T-bar head. 2. The system ceiling according to claim 1, wherein the piece is provided with a T-bar head receiving hole having a downward opening for receiving the T-bar head and holding the side surface in the U-shaped groove of the clip body. CT clip.

  In addition to the above, the invention described in claim 3 is directed inward to all or a part of the nipping protrusions of the spacer so as to smoothly slide up and down the nipping protrusions arranged on the spacer. A guide groove for guiding the guide protrusion in the vertical direction is disposed on a leg piece of the clip body corresponding to the sandwiching protrusion on which the guide protrusion is disposed. The CT clip for the system ceiling according to 1 or 2 is used.

  In addition to the above, the invention according to claim 4 arranges the guide projection of the spacer on the sandwiching projection piece located in the diagonal direction of the spacer so as to show a preferable form of the guide projection arrangement. 4. The system ceiling CT clip according to claim 3, wherein the vertical guide of the guide projection is performed between two leg pieces positioned diagonally. .

  In addition to the above, the invention described in claim 5 has a function of preventing the leg piece of the clip body from being opened by the spacer so that the spacer rides on the protrusion formed on the leg piece when the spacer is slid down. In order to improve the level of this, the guide protrusion of the spacer descends the guide groove below the guide groove of the leg piece in which the guide groove is arranged in the clip body. The system ceiling CT clip according to claim 3 or 4, wherein the system ceiling CT clip is provided.

  In addition to the above, the invention according to the sixth aspect of the present invention, in addition to the above, allows the locking piece to be hooked and locked to the T-bar head by disposing the locking piece only on the two leg pieces positioned diagonally. In order to prevent the possibility that the leg piece expands and causes plastic deformation when the locking piece passes through the T-bar head, the above-mentioned is performed as much as possible. The upwardly inclined locking pieces arranged on the leg pieces of the clip body are arranged on the two leg pieces located diagonally, and the remaining two leg pieces are formed flat so that the locking pieces are not arranged. A CT clip for system ceiling according to claim 1, 2, 3, 4 or 5, characterized in that.

  The present invention uses each of these as the gist of the invention as means for solving the above problems.

  Since the present invention is configured as described above, the invention according to claim 1 is configured such that the spacer that is slidably disposed in the downward opening of the clip body has a U-shape in the front-rear direction similar to the downward opening. Thus, the spacer is provided with hanging pieces at both ends in the width direction, and a pair of hanging pieces is formed with a holding projection piece that holds the leg pieces of the clip body in the front and rear direction and prevents the spread in the front and rear direction. As a matter of fact, the structure of the spacer is made as simple as possible to exert the function of preventing the leg piece from opening as much as possible, and the metal plate is pressed as easily as possible without welding or complicated processing. Thus, a simple method can be used to mass-produce spacers with the above-mentioned clamping protrusions. The system prevents the fall of the clip body from the T-bar by demonstrating the function of preventing the leg piece from opening to prevent the clip from spreading, and always provides a stable and reliable attachment to the T-bar. It is possible to provide a CT clip for a system ceiling that can ensure the work efficiency of ceiling forming work as high as possible.

  In addition to the above, since the spacer includes a pair of hanging pieces at both ends in the width direction, the receiving hole for fitting the T-bar head is disposed on the hanging piece. The head is fitted and received by the receiving hole, and is held so that the front and rear surfaces of the head are sandwiched by the opening end of the receiving hole, and the positional relationship between the T bar and the CT clip is appropriately ensured as intended. In addition, the receiving hole is formed by notching the intermediate portion in the front-rear direction of the pair of hanging pieces and arranging the notch hole with the front-rear width corresponding to the T-bar head on the hanging piece. Utilizing the shape, press work that is also suitable for mass production, and in addition to the above-mentioned anti-opening function, it has a head front and back surface holding function, and the CT clip was attached to the T bar with a higher degree of stability. What about the variation of the top surface of the T-bar? A, it can be made capable of eliminating the unstable attachment of CT clip for T-bar.

  In addition to the above, the invention described in claim 3 can smoothly slide up and down the clamping protrusions arranged on the spacer.

  In addition to the above, the invention described in claim 4 can show a preferable form of the guide projection arrangement.

  In addition to the above, the invention described in claim 5 has a function of preventing the leg piece of the clip body from being opened by the spacer so that the spacer rides on the protrusion formed on the leg piece when the spacer is slid down. Can be advanced.

  In addition to the above, the invention according to the sixth aspect of the present invention, in addition to the above, allows the locking piece to be hooked and locked to the T-bar head by disposing the locking piece only on the two leg pieces positioned diagonally. In addition, it is possible to prevent the possibility that the leg piece expands and causes plastic deformation when the locking piece passes through the T-bar head as much as possible.

  In the following, the present invention will be described in more detail with reference to the example of the drawings. A is a CT clip for the system ceiling, 1 is the clip body, 2 is a spacer, and 3 is arranged on the back of the ceiling so as to form a frame of the system ceiling. T-bar 31 indicates a head of the T-bar, and 4 indicates a cross bar for installing an equipment member, for example, a fire extinguishing sprinkler 5 by crossing the T-bar 3 using the CT clip A.

  The clip body 1 of the CT clip A is arranged along the width direction between the leg pieces 15 by arranging a total of four leg pieces 15 facing the front and rear in a pair in the width direction so as to form a gate shape with the top plate 13. A U-shaped groove 12 for receiving the T-bar head and a downward opening 11 for penetrating the intersecting bar intersecting the U-shaped groove 12 in the middle in the width direction are provided, and at the lower end of all or some of the leg pieces 15. The locking piece 16 inclined upward toward the letter-shaped groove 12 is provided, and the top plate 11 is provided with a presser screw 14 that can be protruded and retracted toward the downward opening 11. In this example, the steel plate is pressed. It is assumed that they are integrally formed by applying.

  At this time, the clip body 1 has the upwardly inclined locking pieces 16 arranged on the leg pieces 15 arranged on the two leg pieces 15 positioned diagonally, and the remaining two leg pieces 15 are arranged. A guide groove 17 that guides a guide protrusion 26 (described later) installed on the spacer 2 in the vertical direction is arranged on the two leg pieces 15 that are not arranged with the locking piece. Further, on the leg piece 15 without the locking piece arranged with the guide groove 17, a riding protrusion 18 on which a later-described clamping protrusion 24 arranged on the spacer 2 rides is provided below the guide groove 17. On the other hand, the two leg pieces 15 on which the locking pieces 16 are arranged are provided with reinforcing ribs 19 at the center in the width direction for reinforcing the leg pieces 15, respectively. At this time, the guide groove 17 of this example is a shallow groove in the vertical direction at a position displaced to the downward opening 11 side of the leg piece 15 by pressing the leg piece 15 and partially denting the leg piece 15. The projecting protrusion 18 is disposed at the lower position of the leg piece 15 below the guide groove 17 by subjecting the end part of the downward opening 11 of the leg piece to the same pressing process and raising the end part to the surface side. The reinforcing ribs 19 are bulging ribs arranged at the center of the leg pieces by being pressed according to a conventional method and partially bulging on the surface side.

  On the other hand, the spacer 2 is slidably arranged in the downward opening 11 of the clip body 1 and is interposed between the T bar head 31 and the cross bar 4 to form a CT clip A together with the clip body 1. At this time, the spacer 2 has a pair of hanging parts arranged at both ends of the top plate 21 and the top plate 21 in the front-rear direction so as to be accommodated in the downward opening 11. The leg piece 15 and the leg pieces 15 of the clip body 1 project in the width direction from both front and rear ends of the pair of drooping pieces 22 and sandwich the leg pieces 15 of the clip body 1 from the inside of the downward opening 11 in the front and rear holding shapes. In this example, it is assumed that the steel plate is integrally formed by pressing the steel plate.

  In this example, the spacer 2 has a pair of drooping pieces 22 which are not cut out in the front-rear direction intermediate portion according to the front-rear width of the T-bar head 31 so that the drooping piece 22 is attached to the clip body 1. It is assumed that a T-bar head receiving hole 25 having a downward opening for receiving the T-bar head 31 in the U-shaped groove 12 and holding the side surface thereof is disposed, and all or a part of the spacer 2 is present in this example. The guide protrusions 26 projecting inward are disposed on the sandwiching protrusions 24 positioned in the diagonal direction, and the diagonally positioned clips corresponding to the sandwiching protrusions 24 on which the guide protrusions 26 are disposed. The guide protrusion 26 is guided in the vertical direction by the guide groove 17 arranged in the leg piece 15 of the main body 1. The vertical guide of the guide protrusion 26 is sandwiched between the two leg pieces 15 positioned diagonally. With piece 24 Some as those made in between. At this time, the holding projection piece 24 of the spacer 2 is lowered below the guide groove 17 of the leg piece 15 of the clip body 1 by the guide projection 26 descending the guide groove 17. It rides on the ride-up protrusion 18 arranged. At this time, each of the clamping protrusions 24 is arranged so that the front and rear ends of the pair of hanging pieces 22 in the width direction are bent in the width direction when the spacer 2 is pressed. The leg piece 15 in which the guide groove 17 of the main body 1 is arranged is wider than the guide groove 17 so as to cover the guide groove 17, and is aligned with the position of the guide groove 17 in the middle in the width direction above and below the guide groove 17. It is assumed that dot-shaped guide protrusions 26 projecting toward the back side, that is, the guide groove 17 side are formed by pressing, and the edge 15 of the downward opening 11 is formed in the leg piece 15 on which the reinforcing rib 19 of the clip body 1 is disposed. To the reinforcing ribs 19 in this example, which cover a relatively narrow end portion, which is somewhat narrower than the width of the leg piece 15 with the guide groove 17 disposed. In the figure, reference numeral 23 denotes a V-shaped reinforcing projection for reinforcing a corner disposed at an intermediate position in the front-rear direction between the top plate 21 and the hanging piece 22. In this example, the reinforcing projection 23 is the hanging piece 22. Since the T-bar head receiving hole 25 is disposed in the space between the top plate 21 and the T-bar head 31, the projection 23 may obstruct the attachment of the CT clip A. There is no.

  In the clip body 1 formed in this way, the leg piece 15 of the clip body 1 is pressed so that the spacer 2 can be slid up and down in the downward opening 11 and is projected from the hanging piece 22 of the spacer 2. The CT clip A is formed by arranging the leg pieces 15 on both sides in the width direction so as to be held in the front-rear holding state by the protruding front-and-rear holding protrusion pieces 24.

  The T-bar 3 to which the CT clip A is attached includes a horizontal fin for installing a ceiling panel at the lower end, an upright erected so as to form an inverted T shape with the horizontal fin at a central position of the horizontal fin, and the upright ridge A metal plate made of an inverted T-shaped long material with a head formed, for example, by roll forming so as to have a shape having a hollow rectangular cross section at the upper end of the metal plate and a narrow head 31 is disposed. The cross bar 4 used to cross the T bar 3 by the CT clip A has a hollow cross-section, a metal plate, for example, a roll-shaped long material subjected to roll forming, for example, at the sprinkler installation position. It is a comparatively short length that matches the interval between a pair of parallel T-bars.

  In order to cross and arrange the cross bar 4 on the T bar 3, a CT clip A is attached to each of the parallel pair of T bars 3, and the cross bar 4 is installed between the T bars 3 by the CT clip A. Is to do.

  That is, the CT clip A is attached to the T bar 3 by, for example, supporting the head 31 of the T bar 3 already installed on the concrete slab with a suspension bolt (not shown). The CT clip A is arranged so as to be received in the U-shaped groove 12 between 15 and the spacer 2 is slid down with the guide protrusion 26 guided by the guide groove 17 of the leg piece 15, and the guide protrusion 26 is installed. A through-hole of the cross bar 4 is formed between the lower surface of the top plate 13 of the clip body 1 and the upper surface of the top plate 21 of the spacer 2 so that the lower part of the sandwiching protrusion 24 rides on the riding protrusion 18 of the clip body 1. The cross bar 4 is disposed through the through hole and the head 31 of the T bar 3 is placed in the T bar head receiving hole 25 disposed on the hanging piece 22 of the spacer 2. The cross bar 4 is fixed so as to be laid on a pair of parallel T bars 3 by tightening a presser screw 14 which is received in a fitting shape and then screwed on the top plate 13 of the clip body 1. In order to install the sprinkler 5 on the cross bar 4, a band 6 for fixing the sprinkler is installed at the position where the sprinkler 5 is located in the middle of the cross bar 4 in the longitudinal direction. What is necessary is just to carry out so that the sprinkler metal fitting arrange | positioned at the front-end | tip may be fixed.

  By using the CT clip A of this example, the leg piece 15 of the clip body 1 is always held in a front-and-back holding shape by the holding protrusion piece 24 of the spacer 2, and the spacer 2 exhibits a function of preventing the leg piece 15 from opening. Since the locking piece 16 is disposed on the two leg pieces 15 positioned in the diagonal direction of the clip body 1, the leg piece is used to receive the T-bar head 31 in the U-shaped groove 12 of the CT clip A. The width of the front and rear opening 15 is reduced as much as possible, the plastic deformation of the clip body 1 is prevented as much as possible, the possibility that the leg piece 15 of the CT clip A is expanded, the spacer 2 is slid Since the riding protrusion 18 on which the spacer 2 rides is disposed on the leg piece 15 when lowered, the spacer 2 lowers the space between the leg pieces 15 below the leg piece 15 by lowering the spacer 2. The The pacer 2 further sandwiches the leg piece 15 to enhance the function of preventing the opening, and accordingly, when the shape of the bottom surface of the head 31 of the T-bar 3 is horizontal, including the case of a V shape below, Regardless of the form, as a result of the locking piece 16 always locking stably to the lower surface of the T-bar head 31, the CT clip A is stably and securely attached to the T-bar 3. The possibility of falling off the T-bar 3 or falling can be completely eliminated.

  The CT clip A is attached to the T bar 3 in a state where the head 31 of the T bar 3 is received in the T bar head receiving holes 25 arranged in the pair of hanging pieces 22 of the spacer 2. Therefore, the spacer 2 holds the front and back surfaces of the T-bar head 31 so that the spacer 2 exhibits the head front-and-rear surface holding function in addition to the above-described opening preventing function. Even if the upper surface is inclined due to the variation of the CT clip A, the unstable factor of the CT clip A attachment such as the spacer 2 being inclined by tightening the presser screw 14 is eliminated, and the CT clip A is always stable and reliable. An attachment state can be secured.

  Further, the clip body 1 and the spacer 2 constituting the CT clip A can be formed by a series of pressing processes such as bending and notching of a metal plate, in particular, a steel plate, so that production is easy and suitable for mass production. The locking piece 16, the guide groove 17, and the guide protrusion 26 are arranged on the two leg pieces 15 positioned diagonally of the clip main body 1 and the corresponding spacer 2, so that the above-described opening prevention function is achieved. As well as ensuring the function of holding the front and rear surfaces of the head 31 of the T-bar 3 and making the spacer 2 descend easily and reliably, it is possible to make it as simple as possible and to have a high function, CT clip for the T-bar 3 Attachment of A is possible by pressing down the CT clip A placed on the T-bar head 31, lowering the slider 2, penetrating the cross bar 4, and tightening the presser screw 14. And obtained without the easy, it is possible to secure the benefits of such that the work of installing the equipment in the system ceiling can be made as much as possible efficiently.

  Although the illustrated example is as described above, the locking piece, the guide groove, and the guide protrusion are arranged on all four leg pieces, and the riding protrusion is a guide instead of or together with the above-mentioned leg piece of the guide groove arrangement. T-bar, its head, CT clip, its clip body, spacer, drooping piece, including placing the nipping protrusion on the part or all of the non-grooved leg piece by lowering the spacer, Specific shapes, structures, materials, relations, additions to these, etc., such as clamping protrusions, T-bar head holes used as necessary, guide protrusions, guide grooves, riding protrusions, etc. Unless it is contrary, it can be in various forms.

It is a perspective view which shows the relationship between T bar by a CT clip, and an intersection bar. It is a perspective view of CT clip. It is a disassembled perspective view of CT clip. It is a front view of CT clip. It is a front view of a clip main part. It is a side view of a clip main body. It is a top view of a clip main part. It is a front view of a spacer. It is a side view of a spacer. It is a top view of a spacer.

Explanation of symbols

ACT clip 1 Clip body 11 Downward opening 12 U-shaped groove 13 Top plate 14 Presser screw 15 Leg piece 16 Locking piece 17 Guide groove 18 Riding protrusion 19 Reinforcement rib 2 Spacer 21 Top plate 22 Drooping piece 23 Reinforcing protrusion 24 Holding protrusion Piece 25 T-bar head receiving hole 26 Guide protrusion 3 T-bar 31 Head 4 Crossing bar 5 Sprinkler 6 Band

Claims (6)

  A U-shaped groove for receiving a T-bar head along the width direction between the leg pieces by arranging a total of four leg pieces facing the front and rear in a pair in the width direction so as to form a gate shape on the top plate; A top plate is provided with a downward opening for penetrating the cross bar that intersects the U-shaped groove in the middle in the width direction, and an upwardly inclined locking piece toward the U-shaped groove at the lower end of all or some of the leg pieces. A clip body provided with a presser screw that can be protruded and retracted toward the downward opening, and a spacer interposed between the T bar head and the cross bar by being slidable vertically in the downward opening of the clip body. A pair of CT clips for use in forming a system ceiling, wherein the spacer is arranged in a U-shape in the front-rear direction with respect to the top plate and the top plate so as to be accommodated in the downward opening. And the front and rear ends of the pair of hanging pieces Each of the front and rear holding protrusions is formed to project in the width direction and hold the leg pieces of the clip body from the inside of the downward opening in a front-rear holding manner to prevent the leg pieces from opening. CT clip for system ceiling, characterized in that   In the pair of hanging pieces in the spacer, the middle part in the front-rear direction is not cut out according to the front-rear width of the T-bar head, so that the hanging piece receives the T-bar head in the U-shaped groove of the clip body. 2. The CT clip for system ceiling according to claim 1, wherein a T-bar head receiving hole having a downward opening for holding the side surface of the lever is disposed.   Guide protrusions projecting inwardly are arranged on all or a part of the sandwiching protrusions of the spacer, and the guide protrusions are vertically arranged on the leg pieces of the clip body corresponding to the sandwiching protrusions on which the guide protrusions are disposed. The CT clip for system ceiling according to claim 1 or 2, wherein a guide groove for guiding is arranged.   The guide projection of the spacer is arranged on the sandwiching projection piece positioned in the diagonal direction of the spacer, and the vertical guide of the guide projection is performed between the two leg pieces positioned in the diagonal direction. The CT clip for system ceiling according to claim 3, wherein the CT clip is for system ceiling.   In the clip main body, a guide protrusion of the spacer descends the guide groove below the guide groove of the leg piece on which the guide groove is arranged, and a riding protrusion that the spacer holding protrusion rides on is disposed. The CT clip for system ceilings of Claim 3 or 4.   The upwardly inclined locking pieces arranged on the leg pieces in the clip body are arranged on the two leg pieces positioned diagonally, and the remaining two leg pieces are formed flat so as not to have the locking pieces arranged. The CT clip for system ceiling according to claim 1, 2, 3, 4 or 5, wherein

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