JP2005307534A - Connecting mechanism of suspending lever for ceiling plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connecting mechanism of a suspending lever for a ceiling plate, facilitating the connection work of a suspending lever for a ceiling plate. <P>SOLUTION: The main plate part 4a surface of a first suspending lever is provided with three elastic hook pieces 10, 10, 11 spaced at a predetermined distance from the main plate part 4a surface and projected upward along the plate surface and a position regulating expanded part 13 positioned between the elastic hook pieces 10, 10 and a locking raised part 2a. Further, a locking plate part 25 is projected at right angles at the end part 5 of a second suspending lever 1b, and also locking holes 20, 20 and a locking groove 21 are formed in the respective predetermined positions of the locking plate part 25. In this arrangement, the first hook pieces 10, 10 are inserted in the locking holes 20, 20, the second hook piece 11 is inserted in the locking groove 21, the upper edges 20a, 20a of the locking holes 20, 20 are supported by the base ends 10a, 10a of the first elastic pieces 10, 10, and the upper edge 21a of the locking groove 21 is supported by the base end 11a of the second elastic hook piece 11. Further, at the supporting position, the upper edge 25a of the locking plate part 25 and the lower edge 13a of the position regulating expanded part 13 are abutted on each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connecting mechanism for connecting ceiling plate suspension rods for suspending a ceiling plate in a T-shape.

  As shown in FIG. 19, the ceiling plate suspension rod f has a substantially inverted T-shaped cross section, and the horizontal portion formed at the lower end of the main plate portion supports the end portion of the ceiling plate p. It is set as the edge part g and g. On the other hand, the wide portion formed at the upper end of the main plate portion is used as a locking ridge i to which the hanger j is fixed. The ceiling plate suspension rods f are assembled in a lattice shape, and a large number of ceiling plates p are supported in an array to constitute an indoor ceiling.

  By the way, as described above, when assembling the ceiling plate suspension rods in a lattice shape, the end of the other ceiling plate suspension rod is brought into contact with the side surface of one ceiling plate suspension rod, In some cases, the ceiling board suspension rods are connected in a T-shape. Therefore, as this connection mechanism, an insertion groove is formed along the plate surface on the side surface of one ceiling plate suspension rod, and an L-shaped projection is formed at the end of the other ceiling plate suspension rod. A configuration has been proposed in which the connecting protrusions are formed and slid sideways to be press-fitted into the fitting insertion grooves to connect each other. (For example, refer to Patent Document 1).

  Furthermore, the tip of the locking edge of the other lifting rod is inserted into the locking edge of one lifting rod so that the two lifting rods connected in a T-shape do not rattle in the horizontal direction. As shown in FIG. 4 and the like, the inclined edges of the lower edges of the locking edges each processed into a triangular shape are brought into close contact with each other, and are firmly and consistently connected in a T-shape. A configuration has been proposed.

Japanese Utility Model Publication 2-99113

  However, as shown in FIG. 4, when the slanted edges of the lower edges of the locking edge portions of the two suspension rods are in close contact with each other, the two suspension rods are elastically deformed by twisting both suspension rods. It was necessary to remove the connecting protrusions from the insertion grooves while shifting the oblique edges in the vertical direction and avoiding contact between the oblique edges. Such work is troublesome, and the configuration for preventing horizontal shakiness, conversely, reduces the work efficiency of the connecting work.

  Then, an object of this invention is to provide the connection mechanism of the suspension rod for ceiling boards which makes easy the connection operation | work of a suspension rod, preventing horizontal shakiness.

  The present invention provides a ceiling plate suspension in which a locking ridge to which a hanger is fixed is formed at the upper end of a main plate portion, and a locking edge portion that supports an end portion of the ceiling plate is formed at the lower end of the main plate portion. In the connecting mechanism for connecting the holding rods to each other in a T-shape, the main plate portion surface of one ceiling plate suspension rod protrudes upward along the plate surface while being separated from the main plate portion surface by a predetermined distance. A plurality of elastic hook pieces, and a position defining bulge portion located between the elastic hook piece and the locking ridge portion of the suspension rod, respectively, and at the end of the other ceiling plate suspension rod, A locking plate portion is formed at a right angle, and the locking plate portion has a horizontal width dimension equal to the horizontal width size of the elastic hook piece, and a vertical locking groove that is equal to or longer than the vertical length of the elastic hook piece. A plurality of elastic hook pieces each formed in a predetermined position and inserted into the locking slot support the upper edge of the locking slot at its base end, and The suspension mechanism for the ceiling plate suspension rod, wherein the upper edge of the locking plate portion and the lower edge of the position defining bulge portion are brought into contact with each other at the support position, and both suspension rods are coupled. It is.

  With this configuration, the elastic hook piece is inserted into the locking groove, and at least one of the locking plate portion and the elastic hook piece is elastically deformed and locked in the gap between the main plate portion and the elastic hook piece. When the plate portion is press-fitted downward, the elastic force is released at a position where the upper edge of the locking groove hole is supported by the base end of the elastic hook piece. Then, the upper edge of the locking plate portion and the lower edge of the position defining bulge portion come into contact with each other, and both the suspension rods are connected. On the other hand, in such a configuration, when releasing the connection between the two suspension rods, the other suspension rod is relatively raised while separating the locking plate portion from the main plate portion surface of the one suspension rod, By positioning the elastic hook piece in the locking groove while riding the locking plate portion on the position defining bulging portion, it becomes possible to detach from each other. As described above, in the present invention, when detaching each suspension rod, since the mutual suspension rods are moved relative to each other, the tip of the lower edge of the locking edge portion of each suspension rod. The slanted edge does not interfere with the desorption operation. In addition, by making the horizontal dimension of the locking slot equal to the horizontal dimension of the elastic hook piece, it is possible to prevent horizontal shaking at the time of connection, and the vertical length of the locking slot is made to be the vertical length of the elastic hook piece. By setting it as the above, an elastic hook piece can be inserted in a locking slot.

  A first position defining bulge portion that is in contact with the upper edge of the base end portion of the locking plate portion on the main plate portion surface of one of the lifting rods, and the locking A configuration is proposed in which a second position defining bulging portion that abuts on the upper edge of the tip of the plate portion is formed.

  In such a configuration, even if an upward pressing force acts only on the other suspension rod, both the position defining bulging portions are in contact with both ends of the upper edge of the locking plate portion, so the other It can prevent that a rotational force does not act on a suspension rod and a connection part deform | transforms.

  In addition, in a state where both the suspension rods are connected, a tool operation portion that forms an insertion plate gap into which a tool can be inserted from the outside is provided at a part of the outer edge of the locking plate portion. A configuration is proposed.

  By adopting such a configuration, a tool or the like is inserted into the insertion plate gap generated by the tool operation unit at the time of releasing the connection, and at least one of the locking plate portion and the elastic hook piece is utilized using the lever principle. By elastically deforming, the locking plate portion can be easily ridden on the position defining bulge portion.

  The coupling mechanism of the ceiling plate suspension rod according to the present invention is provided with a plurality of elastic hook pieces and position-regulating bulge portions on the main plate portion surface of one ceiling plate suspension rod, and the other ceiling plate suspension rod. A plurality of locking groove holes are formed in the locking plate portion projecting from the end of the elastic hook piece, and an elastic hook piece inserted into the locking groove hole supports the upper edge of the locking groove hole at the base end; and At the support position, the upper edge of the locking plate portion and the lower edge of the position defining bulge portion are in contact with each other so that both suspension rods are connected. Therefore, it is not necessary to move in the horizontal direction as in the conventional configuration, and the inclined front edge of the lower edge of the locking edge portion of each suspension rod does not contact each other. For this reason, the connection and release work becomes easy, and there is an excellent advantage of improving the work efficiency of the connection and release work. In addition, since the horizontal width dimension of the locking slot is made equal to the horizontal width dimension of the elastic hook piece, it is possible to prevent horizontal shaking at the time of connection, and the vertical length is equal to or greater than the vertical length of the elastic hook piece. A piece can be inserted.

  Further, a first position defining bulging portion that comes into contact with the upper edge of the base end portion of the locking plate portion and a second position that comes into contact with the upper edge of the locking plate portion on the main plate portion surface of the one suspension rod In the case where the specified bulging portion is formed, respectively, even if the upward pressing force acts only on the other suspension rod, both position bulging portions are connected to both ends of the upper edge of the locking plate portion. Since it contacts, there exists an effect which can prevent a rotational force acting on the other suspension rod, and a connection part deform | transforming.

  In addition, in the case where the tool operation part is provided on a part of the outer edge of the locking plate part, a tool or the like is inserted into the insertion plate gap generated by the tool operation part at the time of releasing the connection. It is possible to easily deform the locking plate portion on the position defining bulging portion by elastically deforming the locking plate portion or the like, and there is an effect that the work efficiency of the connection release is greatly improved.

Embodiments of the present invention will be described with reference to the accompanying drawings.
<First embodiment>
1-4 show the ceiling plate suspension rods 1a and 1b connected to each other by the coupling mechanism of the present invention. One ceiling plate suspension rod 1a (hereinafter referred to as the first suspension rod 1a). And the other end of the other ceiling plate suspension rod 1b (hereinafter referred to as the second suspension rod 1b) are in contact with each other to connect the ceiling plate suspension rods in a T-shape.

  As shown in FIGS. 2 and 5, the first steel rod 1a made of steel has a substantially inverted T-shaped cross section, and a horizontal portion is formed at the lower end of the upstanding main plate portion 4a. The locking edges 3a and 3a support the end of the ceiling plate p (see FIG. 19) on the horizontal upper surface. The locking edge portion 3a is formed by bending the end portions of the steel plate material inwardly.

  On the other hand, a wide portion is formed at the upper end of the main plate portion 4a, and this is used as a locking ridge 2a. A hanger j (see FIG. 19) is fixed to the locking ridge 2a.

  Further, as shown in FIGS. 5 and 6, three elastic hook pieces 10, 10, 11 projecting upward along the plate surface on the surface of the main plate portion 4 a on one side of the first suspension rod 1 a. Is provided. Specifically, the first elastic hook pieces 10 and 10 having a lateral dimension of x1 and a longitudinal length of y1 are juxtaposed in two places on the left and right sides, and the first elastic hook pieces 10 and 10 are positioned below the first elastic hook pieces 10 and 10, respectively. A second elastic hook piece 11 (horizontal width x2, vertical y2) that is longer than the elastic hook piece 10 is provided. These elastic hook pieces 10 and 11 are formed by cutting and raising the main plate portion 4a parallel to the vertical direction, and are formed apart from the main plate portion 4a by a plate thickness of a locking plate portion 25 described later. Note that the upper ends of the elastic hook pieces 10 and 11 are bent slightly outward, and the opening at the upper end is slightly wider (see FIG. 5).

  Further, a position-defining bulging portion 13 formed by cutting and raising the main plate portion 4a in parallel in the horizontal direction is provided above the first elastic hook pieces 10, 10 and directly below the locking ridge 2a. ing. The lower edge 13a of the position defining bulging portion 13 comes into contact with an upper edge 25a of a locking plate portion 25 described later.

  Further, as shown in FIG. 6, the locking edge 3a is formed with an insertion opening 15 in which the locking edge 3a is partially cut away. This insertion opening 15 is for inserting the triangular tip 12b of the second locking edge lower edge 14b of the second suspension rod 1b, which will be described later, at the time of connection. The insertion opening 15 is processed into a triangular shape. The triangular tips 12a and 12a (see FIG. 4) of the locking edge lower edge 14a are faced from both the left and right sides.

  As shown in FIGS. 3 and 5, the elastic hook pieces 10 and 11 and the position defining bulging portion 13 are also provided on the other side (rear side) of the main plate portion 4a. It can be connected in a letter shape.

Next, the second suspension rod 1b will be described.
As shown in FIGS. 1 and 7, the second suspension rod 1b is also substantially T-shaped in cross section, and includes a main plate portion 4b, locking edges 3b and 3b, and a locking ridge 2b. ing. Moreover, as shown in FIGS. 4 and 8, triangular tips 12b and 12b processed into a triangular shape are formed on the lower edges 14b and 14b of the locking edge 3b.

  Furthermore, as FIG. 3 etc. show, as for the 2nd suspension rod 1b, the latching board part 25 protrudes from the edge part 5 at right angle. Specifically, the connecting member 24 formed by bending a plate piece into an L shape is fixed to the main plate portion 4b by the crimping portion 6.

  As shown in FIG. 7, the locking plate portion 25 has two locking holes 20, 20 arranged side by side, and a lower position below the locking holes 20, 20. An open locking groove 21 is formed. The first elastic hook piece 10 is inserted into the locking hole 20, and the second elastic hook piece 11 is inserted into the locking groove 21, so that the locking hole 20 and the locking groove 21 are relatively formed. The position is set corresponding to the formation position of the elastic hook pieces 10 and 11, as shown in FIG. The locking hole 20 has a lateral width x3 equal to the lateral width x1 of the first elastic hook piece 10 and the longitudinal length y3 is the longitudinal length y1 of the hook piece 10. Further, the laterally long dimension (groove width) x4 of the locking groove 21 is the lateral width dimension x2 of the second elastic hook piece 11. The locking hole 20 and the locking groove 21 constitute a locking groove hole according to the present invention.

  The L-shaped connecting member 24 fixed to the main plate portion 4b is formed with a reinforcing bulge portion (reinforcing rib) 23 along the protruding direction so as to straddle the bent portion. Prevents buckling and deformation.

Next, a specific method of connecting the first suspension rod 1a and the second suspension rod 1b will be described.
As shown in FIG. 9a, first, the triangular tip 12b of the locking edge lower edge 14b of the second suspension rod 1b is inserted into the insertion opening 15 of the first suspension rod 1a. At the same time, the main plate portion of the first suspension rod 1a erected so that the first elastic hook pieces 10 and 10 are positioned in the locking holes 20 and 20 and the second elastic hook pieces 11 are positioned in the locking groove 21. The front surface of the locking plate portion 25 of the second suspension rod 1b is brought into contact with 4a (see FIG. 10a). Of course, in this contact state, the front surface of the locking plate portion 25 is in contact with the top of the position defining bulging portion 13.

  Then, as shown in FIG. 10b, the first elastic hook piece 10 is inserted into the locking hole 20, and the second elastic hook piece 11 (not shown) is inserted into the locking groove 21 (not shown). While the pieces 10 and 11 are elastically deformed outward, the locking plate portion 25 is press-fitted downward into the gap between the main plate portion 4 a and the elastic hook pieces 10 and 11.

  When the locking plate portion 25 is further press-fitted, as shown in FIGS. 9b and 10c, the upper edge 20a of the locking hole 20 and the upper edge 21a of the locking groove 21 are the base ends of the elastic hook pieces 10 and 11, respectively. The elastic force that acts on the elastic hook pieces 10 and 11 is released at the positions supported by 10a and 11a, respectively, so that the locking plate portion 25 is accommodated in the gap and is positioned with the upper edge 25a of the locking plate portion 25. The lower edge 13a of the specified bulging portion 13 comes into contact. Thereby, the latching plate part 25 is latched by both the elastic hook pieces 10 and 11, and both suspension rods 1a and 1b will be connected. At this time, as shown in FIG. 4, the slanted edge of the triangular tip 12a of the locking edge lower edge 14a associated with the first suspension rod 1a and the lower edge of the engagement edge portion associated with the second suspension rod 1b. The beveled edges of the triangular tip 12b of 14b are in close contact with each other to form a uniform T-shaped connecting portion. Further, since the horizontal width dimensions x3 and x4 of the locking holes 20 and the locking grooves 21 are equal to the horizontal width dimensions x1 and x2 of the elastic hook pieces 10 and 11, both the suspension rods 1a and 1b do not rattle in the horizontal direction. .

  On the other hand, when releasing the connection between the two suspension rods 1a and 1b, the elastic hook pieces 10 and 11 are elastically deformed outward while the locking plate portion 25 is separated from the main plate portion 4a surface of the first suspension rod 1a. Further, the second suspension rod 1b is relatively raised, and the locking plate portion 25 is ridden on the position defining bulging portion 13. Further, by positioning the elastic hook pieces 10 and 11 in the locking hole 20 and the locking groove 21, the elastic force acting on the elastic hook pieces 10 and 11 is released, and the engaged state is released.

  As described above, the coupling mechanism according to the present invention moves the suspension rods 1a and 1b up and down relative to each other in the insertion opening 15 when connecting or releasing the suspension rods 1a and 1b to each other. The inclined edges of the triangular tips 12a and 12b of the locking edge lower edges 14a and 14b of the suspension rods 1a and 1b do not engage each other.

<Second embodiment>
Further, the configuration shown in FIGS. 11 and 12 is proposed. In addition, about the part which is common in 1st embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In the present embodiment, a horizontally long first elastic hook piece 40 and a second elastic hook piece 41 having the same width are formed vertically on the main plate portion 4a of the first suspension rod 1a. A locking hole 50 into which the first elastic hook piece 40 is inserted and a locking groove 51 into which the second elastic hook piece 41 is inserted are formed in the locking plate portion 25 of the two suspension rods 1b.

  The base end 40a of the first elastic hook piece 40 supports the upper edge 50a of the locking hole 50, and the base end 41a of the second elastic hook piece 41 supports the upper edge 51a of the locking groove 51. The holding rods 1a and 1b are connected.

  Further, in the present embodiment, an insertion plate gap d (see FIG. 5) at a predetermined interval between the outer edge of the locking plate portion 25 and the main plate portion 4a surface of the first suspension rod 1a at the corner of the tip. 12) is formed.

  The tool operation part 45 is formed by press working together with the above-described reinforcing bulge part 23. When the connection is released, a tool or the like is inserted into the insertion plate gap d generated on the back side of the tool operation part 45. Is inserted from the side, and the locking plate portion 25 and the elastic hook pieces 40 and 41 are elastically deformed outward using the principle of the lever, and the locking plate portion 25 is ridden on the position defining bulging portion 13. It makes things easier.

<Third embodiment>
Moreover, the another structure shown by FIGS. 13-18 is proposed. In addition, about the part which is common in the 1st, 2nd embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  FIGS. 13-15 shows the 1st suspension rod 1a and the 2nd suspension rod 1b mutually connected by the connection mechanism concerning the example of this embodiment.

  As shown in FIGS. 13 and 16 and the like, the first elastic hook piece 40 and the second elastic hook piece 41 are provided vertically on the main plate portion 4a of the first suspension rod 1a according to this embodiment. ing. Further, a first position defining bulging portion 47 is formed at the upper right of the first elastic hook piece 40, and a second position defining bulging portion 48 is formed at the upper left. Hereinafter, the first and second position defining bulging portions 47 and 48 will be described.

  The first position defining bulging portion 47 is provided almost directly above the insertion opening 15 in the locking edge 3a and directly below the locking ridge 2a. More specifically, the first position defining bulging portion 47 cuts and raises the main plate portion 4a in parallel in the horizontal direction, the first elastic hook piece 40 side as a connection base portion, and the other side as an open end. The lower edge 47a of the first position defining bulging portion 47 comes into contact with the upper edge 25c of the base end portion of the locking plate portion 25 described later. In addition, as FIG. 15 etc. show, the said 1st position prescription bulging part 47 is provided also in the other side (back surface side) of the main board part 4a.

  On the other hand, the second position defining bulge portion 48 formed at the upper left of the first elastic hook piece 40 forms an L-shaped cut edge on the surface of the main plate portion 4a as shown in FIGS. Thus, it is formed by projecting the region sandwiched between the cut edges to one side (front side in FIG. 16). Thus, the horizontal lower edge 47a and the vertical side edge 47b are cut and raised from the surface of the main plate portion 4a, and are coupled to the main plate portion 4a via the arc-shaped connection base. A lower edge 48a of the second position defining bulging portion 48 abuts on an upper end edge 25b of a locking plate portion 25 described later, and a side edge 47b of the bulging portion 47 is a vertical edge 25d of the distal end of the locking plate portion 25. Will abut.

Next, the second suspension rod 1b will be described.
As shown in FIG. 17 and the like, a locking hole 50 into which the first elastic hook piece 40 is inserted and a second elastic hook piece 41 are inserted into the locking plate portion 25 of the second suspension rod 1b. A locking groove 51 is formed. Further, reinforcing bulge portions (reinforcing ribs) 55 and 55 are formed at the upper and lower positions of the locking hole 50 along the protruding direction of the locking plate portion 25, respectively. A tool operation unit 45 that facilitates the release of the connection is also formed.

  Further, the upper edge 25a of the locking plate portion 25 according to the present embodiment is provided with a step portion on the distal end side, and the upper edge 25a is coupled to the horizontal distal upper edge 25b. A vertical edge 25d at the front end and a base end upper edge 25c at the base end of the locking plate portion 25 are provided.

  In such a configuration, both the suspension rods 1a and 1b are brought into contact with the tops of the two position defining bulging portions 47 and 48 in the same manner as in the connecting method shown in the first embodiment. When the first and second elastic hook pieces 40 and 41 are inserted into the stop hole 50 and the locking groove 51, respectively, when the locking plate portion 25 is pressed downward and pressed into the gaps inside the elastic hook pieces 40 and 41, FIG. The upper edge 50a of the locking hole 50 is supported by the base end 40a of the first elastic hook piece 40, and the upper edge 51a of the locking groove 51 is supported by the base end 41a of the second elastic hook piece 41, respectively. Is done. In this support position, the lower edge 47a of the first position defining bulging portion 47 is the base edge upper edge 25c of the locking plate portion 25, and the lower edge 48a of the second position defining bulging portion 48 is the locking plate portion 25. The upper edge 25b of the front end and the side edge 48b of the second position defining bulge portion 48 abut against the front end vertical edge 25d of the locking plate portion 25, respectively, so that both the suspension rods 1a and 1b are connected.

Next, a specific method for releasing the connection will be described.
In a state where the locking plate portion 25 is locked to both elastic hook pieces 40 and 41 (see FIG. 18a), a tool is inserted into the back surface of the tool operating portion 45, and the locking plate portion 25 is elastically outward. It floats slightly from the surface of the main plate part 4a while being deformed. Then, as shown in FIG. 18b, the second suspension rod 1b is tilted counterclockwise about the virtual center point α, and the leading edge 25d of the locking plate portion 25 is moved to the second position defining bulging portion. Try to ride on 48.

  In this way, the lower edge 47a of the first position defining bulging portion 47 and the base edge upper edge 25c of the locking plate portion 25 are locked, and the lower edge 48a of the second position defining bulging portion 48 and the locking plate. The engagement between the locking plate portion 25 and the top edge 25b of the locking plate portion 25 of the portion 25 and the locking between the side edge 48b of the second position defining bulging portion 48 and the leading edge vertical edge 25d of the locking plate portion 25 are released. As shown in FIG. 18c, the first elastic hook piece 40 can be positioned in the locking hole 20, and the second elastic hook piece 41 can be positioned in the locking groove 51. Detachable.

  In such a configuration, even if the upward pressing force acts only on the second suspension rod 1b, both the position defining bulging portions 48 and 47 are in contact with both ends of the upper edge 25a of the locking plate portion 25. Therefore, no rotational force acts on the second suspension rod 1b, and the connecting member 24 is not deformed.

  In addition, this invention does not exclude the structure which integrally molds the locking plate part 25 with the 2nd lifting rod 1b.

It is a vertical side view which shows the connection mechanism of the suspension board 1a, 1b for ceiling boards concerning this invention. It is AA sectional drawing in FIG. It is BB sectional drawing in FIG. It is a bottom view which shows the connection mechanism of the suspension board 1a, 1b for ceiling boards. It is a longitudinal cross-sectional view of the 1st suspension rod 1a. It is a 1st hanging rod 1a side view. It is a longitudinal cross-sectional view of the 2nd lifting rod 1b. It is an enlarged plan view of the second hanging rod 1b. It is explanatory drawing which shows a connection procedure. It is explanatory drawing which shows a connection procedure. It is a vertical side view which shows the connection mechanism of the suspension board 1a, 1b for ceiling boards concerning the example of 2nd embodiment. It is CC sectional drawing in FIG. It is a vertical side view which shows the connection mechanism of the suspension board 1a, 1b for ceiling boards concerning a 3rd embodiment. It is DD sectional drawing in FIG. It is EE sectional drawing in FIG. It is a side view of the 1st suspension rod 1a concerning the example of 3rd embodiment. It is a vertical side view of the second hanging rod 1b according to the third embodiment. It is explanatory drawing which shows the procedure of a connection cancellation | release. It is a perspective view which shows the assembly | attachment state of the ceiling board p by the suspension board f for ceiling boards.

Explanation of symbols

1a, 1b Ceiling plate suspension rods 2a, 2b Locking ridges 3a, 3b Locking edge portions 4a, 4b Main plate portion 5 End portions 10, 40 of the ceiling plate suspension rods First elastic hook pieces 11, 41 Two elastic hook pieces 10a, 40a Base ends 11a, 41a of the first elastic hook pieces Base ends 13, 47, 48 of the second elastic hook pieces Position defining bulging portions 13a, 47a, 48a Lower edges 20, 50 of the position defining bulging portions Locking hole (locking groove hole)
20a, 50a Top edge 21, 51 of locking hole Locking groove (locking groove hole)
21a, 51a Upper edge 25 of locking groove Locking plate portion 25a Upper edge 48 of locking plate portion Tool operation portion d Insertion plate gap j Hanger p Ceiling plate

Claims (3)

At the upper end of the main plate portion, a locking ridge to which the hanger is fixed is formed, and at the lower end of the main plate portion, the ceiling plate suspension rod with the locking edge portion supporting the end portion of the ceiling plate is formed. In a connecting mechanism for connecting in a T-shape,
A plurality of elastic hook pieces projecting upward along the plate surface while being spaced apart from the main plate portion surface by a predetermined distance on the main plate portion surface of one ceiling plate suspension rod, and the elastic hook pieces and the suspension Each of the position defining bulges located between the holding ridges of the holding hook is provided, and
A locking plate portion is formed at a right angle at the end of the other ceiling plate suspension rod, and the locking plate portion has a width dimension equal to the width dimension of the elastic hook piece and the elastic hook. A plurality of vertically long locking slots that are equal to or longer than the length of each piece are formed at predetermined positions, respectively.
The elastic hook piece inserted into the locking slot supports the upper edge of the locking slot at its base end, and at the support position, the upper edge of the locking plate part and the lower edge of the position defining bulge part The suspension mechanism for the ceiling plate is characterized in that the two suspension rods are connected with each other. In the state where both suspension rods are connected,
A first position defining bulging portion that contacts the upper edge of the base end portion of the locking plate portion and a second position setting that contacts the upper edge of the locking plate portion on the main plate portion surface of one lifting rod 2. The connecting mechanism for a ceiling plate suspension rod according to claim 1, wherein the bulging portion is formed respectively. In the state where both suspension rods are connected,
The tool operation part which forms the insertion board gap | interval in which a tool can be inserted from the outside is provided in a part of outer edge of the latching plate part, The claim 1 or Claim 2 characterized by the above-mentioned. A connecting mechanism for a ceiling board suspension rod.

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