JP4499518B2 - Expansion joint device for ceiling - Google Patents

Description

  The present invention closes a gap between two adjacent ceiling structures such as between the ceiling panel and the ceiling panel and between the ceiling panel and the wall surface and closes / separates each ceiling structure from each other. The present invention relates to an expansion joint device for a ceiling that can allow relative displacement in one horizontal direction and a second horizontal direction perpendicular to the first horizontal direction.

  FIG. 8 is a vertical sectional view showing a conventional expansion joint device 1 for ceiling, and this conventional technology is described in Patent Document 1. The ceiling expansion joint device 1 includes a cover body 6 that covers a gap 4 between two ceiling structure bodies 3a and 3b adjacent to each other with a space between the ceiling plates 5a and 5b from below, and a cover body 6 On the back surface, there are a plurality of holders 7 fixed at intervals in the gap extending direction perpendicular to the paper surface of FIG. 8, and fitting members 8a and 8b that are movably fitted in the respective holders 7, and each ceiling structure The bodies 3a and 3b have a pair of holding means 9a and 9b for holding the holder 7 and the cover body 6.

  As for each ceiling structure 3a, 3b, hanger pieces 12a, 12b are connected by nuts 11a, 11b to the lower ends of a plurality of suspension bolts 10a, 10b whose upper ends are fixed to a concrete slab of each building and hang down. Each hanger piece 12a, 12b supports field edge receivers 13a, 13b, and the continuous field edges 14a, 14b are connected to the lower surface of each field edge receiver 13a, 13b by welding. The ceiling plates 5a and 5b are fixed to the lower surfaces of the field edges 14a and 14b by screws 16a and 16b together with the edge members 15a and 15b.

  Each holding means 9a, 9b includes the above-described fitting members 8a, 8b, bolts 21a, 21b inserted into the fitting members 8a, 8b, and compression coil springs 22a, attached to the bolts 21a, 21b. 22b, washers 23a, 23b attached to the bolts 21a, 21b from above the compression coil springs 22a, 22b, and nuts 24a, 24b screwed to the bolts 21a, 21b.

  The compression coil springs 22a and 22b are interposed between the washers 23a and 23b and the edge members 15a and 15b, and are compressed by tightening the nuts 24a and 24b to the bolts 21a and 21b. It is installed. Therefore, each fitting member 8a, 8b is spring-biased in the direction close to each edge member 15a, 15b, that is, upward in FIG.

  The holder 7 is formed in a substantially C shape with a cross section orthogonal to the upper side of FIG. 8, and the fitting members 8a and 8b are slidably inserted into the holder 7, and each compression coil spring 22a is inserted into the holder 7. , 22b elastically press the respective edge members 15a, 15b from below and abut against the holder 7 so as to be displaceable from each other.

  A plurality of such holders 7 are provided at intervals in the extending direction perpendicular to the paper surface of FIG. 8, and the holders 7 are held by a pair of holding means 9 a and 9 b for each holder 7.

  Mounting brackets 25a and 25b are attached to both ends of the holder 7 in the longitudinal direction and fixed by screws 26a and 26b. The connecting brackets 27a and 25b are bent in a substantially L shape. 27b is fixed by screws 28a and 28b, respectively, and both end portions 30a and 30b in the width direction of the cover body 6 are fixed to the connecting fittings 27a and 27b by screws 32a and 32b. Concave grooves 29a and 29b are formed at both ends 30a and 30b in the width direction of the cover body 6, and packings 31a and 31b are fitted into these concave grooves 29a and 29b.

  With such a configuration, in this conventional technique, the buildings 2a and 2b are relatively close to / separated by a sudden earthquake or the like, and the first horizontal direction (the left-right direction in FIG. 8) is perpendicular to the first horizontal direction. Even when displaced in the second horizontal direction (direction perpendicular to the paper surface of FIG. 8), the fitting members 8a and 8b of the holding means 9a and 9b slide in the holder 7, and the holder 7 It is supported in a state of being elastically pressed against 15b, and relative displacement between the buildings 2a and 2b is allowed in a state where the gap 4 between the ceiling structures 3a and 3b is closed.

Japanese Patent Laid-Open No. 10-37319

  In such conventional technology, the first horizontal displacement of each ceiling structure 3a, 3b is allowed by sliding the fitting members 8a, 8b of the holding means 9a, 9b in the holder 7, Since the second horizontal displacement is configured to be allowed by the holder 7 being movable with respect to each of the edge members 15a and 15b, each ceiling structure 3a and 3b has a holding means 9a having the same structure. 9b, the number of parts is large, and the configuration is complicated. Therefore, there is a problem that assembly work and installation work at the time of construction are troublesome and workability is poor.

  The objective of this invention is providing the expansion joint apparatus for ceilings which can simplify a structure and can improve workability | operativity.

The present invention is a ceiling expansion joint device provided between two adjacent ceiling structures with a gap in the first horizontal direction,
An edge member fixed to each facing portion of each ceiling structure facing each other and extending in a second horizontal direction perpendicular to the first horizontal direction;
A plurality of guide holding means provided on one edge member at intervals in the second horizontal direction;
An intermediate portion between one end portion and the other end portion in the first horizontal direction is held movably in the first horizontal direction by each guide holding means, and the other end portion in the first horizontal direction is held by the other edge member. A plurality of holder members held movably in the second horizontal direction in a state where movement in the horizontal direction is prevented;
Is fixed to the holder member, seen including a movable cover member for covering the gap between the edge material,
The plurality of guide holding means extend in the first horizontal direction from the one edge member toward the other edge member, and the guide rail that holds the holder member movably in the first horizontal direction is fixed to the guide rail. a ceiling expansion joint system characterized in that it comprises a bracket that is, a spring for supporting the bracket on the one of the strip.

  According to the present invention, the edge member extending in the second horizontal direction perpendicular to the first horizontal direction is fixed to each facing portion of the two ceiling structures adjacent to each other with a gap in the first horizontal direction. The The two adjacent ceiling structures include a case where the ceiling panel and the ceiling panel are configured to be adjacent to each other and a case where the ceiling panel and the wall are configured to be adjacent to each other.

  One edge member is provided with a plurality of guide holding means spaced apart in the second horizontal direction, and these guide holding means are movable in the first horizontal direction at the intermediate portion of the holder member in the first horizontal direction. The other edge member holds the other end portion of the holder member in the first horizontal direction so as to be movable in the second horizontal direction while being prevented from moving in the first horizontal direction. A movable cover body is fixed to the holder member, and the gaps between the edge members are covered by the movable cover body.

In this way, the intermediate portion of the holder member is held movably in the first horizontal direction by the guide holding means, and the other end portion is held movably in the second horizontal direction by the other edge member. As described above, the guide holding means need only be on one side, and the number of parts can be reduced, as compared with a configuration in which the holder is movably held in the first horizontal direction and the second horizontal direction by holding means provided on each ceiling structure. In addition, the configuration can be greatly simplified. Therefore, when installing the expansion joint device for ceilings in the field, assembly work and attachment work can be facilitated, and workability is improved.
Further, the guide holding means is configured so that the guide rail extending in the first horizontal direction from one edge member to the other edge member is fixed to the bracket, and the bracket is supported on the one edge member by the spring. The bracket can be displaced in the vertical direction to compress or extend the spring, and also allows vertical displacement between the ceiling panels constituting the two adjacent ceiling structures or between the ceiling panel and the wall body. be able to. Thus, since the bracket can be displaced in the vertical direction by the spring, the vertical displacement of the holder member and the movable cover body held by the bracket can be allowed.

  According to the present invention, between the adjacent ceiling structures, the intermediate portion of the holder member is held movably in the first horizontal direction by the guide holding means, and the other end portion is held in the second horizontal direction by the other edge member. Since the holder is movably held, as compared with the configuration in which the holder is movably held in the first horizontal direction and the second horizontal direction by the holding means provided in each ceiling structure as in the prior art, the guide The holding means need only be on one side, and the number of parts can be reduced and the configuration can be greatly simplified. Therefore, when installing the expansion joint device for ceilings in the field, assembly work and attachment work can be facilitated, and workability is improved.

Also, the guide rails from one edge member extending in a first horizontal direction toward the other edge member is fixed to the bracket, the guide holding means configured to support on one of the strip bracket by a spring Therefore, the bracket can be displaced in the vertical direction for compressing or extending the spring, and the vertical displacement between the ceiling structures can be allowed. Thus, since the bracket can be displaced in the vertical direction by the spring, the vertical displacement of the holder member and the movable cover body held by the bracket can be allowed.

  FIG. 1 is a vertical sectional view showing a ceiling expansion joint device 40 according to an embodiment of the present invention, and FIG. 2 is a plan view of a guide holding means 45 as viewed from above in FIG. The expansion joint device 40 for ceiling opposes each of the ceiling panels 42a and 42b that constitute a part of two adjacent ceiling structures with a gap 41 in the first horizontal direction A, and the ceiling panels 42a and 42b. Edge members 44a and 44b fixed to the opposing portions 43a and 43b and extending in the second horizontal direction B perpendicular to the first horizontal direction A, and one edge member 44a with an interval ΔL in the second horizontal direction B. A plurality of guide holding means 45 provided and an intermediate portion between the one end portion 46a and the other end portion 46b in the first horizontal direction A are held movably in the first horizontal direction A by the respective guide holding means 45, so that the first horizontal A plurality of holder members 47 whose other end portions 46b in the direction A are held movably in the second horizontal direction B by the other edge member 44b, and are fixed to the respective holder members 47 from below (lower in FIG. 1), Each edge material 44a, 4 And a movable cover member 48 for covering the gap 41 between b.

  FIG. 3 is an enlarged side view showing the guide holding means 45, and FIG. 4 is a front view of the guide holding means 45 seen from the left side of FIG. The plurality of guide holding means 45 extend in the first horizontal direction A from the one edge member 44a toward the other edge member 44b, and hold the holder member 47 movably in the first horizontal direction A. 50, a bracket 51 to which the guide rail 50 is fixed, and a compression coil spring 52 that is a spring that supports the bracket 51 on the one edge member.

  The guide rail 50 has a flat plate-like base portion 56 and guide grooves 57 and 58 that are open on both sides between the base portion 56 and a cross-section that is integrally provided on the surface facing the lower side of the base portion 56. Has a pair of engagement pieces 59, 60 that are substantially L-shaped.

  The bracket 51 includes a bottom 63, a vertical rib 64 that rises vertically from one side in the width direction that is the left-right direction in FIG. 4 and rises upward from one longitudinal end of the bottom 63 parallel to the first horizontal direction. A rising portion 65 bent at a right angle, a spring receiving portion 66 bent at a right angle from the upper end portion of the rising portion 65 to the opposite side to the bottom portion 63 (left side in FIG. 3) and extending horizontally, and a longitudinal central portion of the longitudinal rib 64 And a connecting piece 67 that connects the upper part of the rising part. Such a bracket 51 is formed by welding a connecting piece 67 made of a similar steel plate to a bottom portion 63, a vertical rib 64, a rising portion 65, and a spring receiving portion 66 formed by bending a steel plate.

  The spring receiving portion 66 is disposed immediately above the one edge member 44a with the interval ΔL as described above. At this position, the spring mounting bolt 69 is placed on the one edge member 44a from below to above. The one edge member 44a is fixed with the lock nut 70 and the bolt head 71 projectingly inserted and screwed together.

  Thus, the compression coil spring 52 is mounted on the shaft portion of the spring mounting bolt 69 protruding upward from the one edge member 44a, and the spring receiving portion 66 of the bracket 51 is mounted thereon. A washer 72 is mounted on the compression coil spring 52 inserted through the spring receiving portion 66 from below, and a retaining nut 73 is screwed.

  The guide rail 50 is fixed in parallel to the lower surface of the bottom portion 63 by a plurality of screws 75, and a portion extending from the rising portion 65 to the bottom portion 63 protrudes from the one edge member 44a into the gap 41, and the bracket 51 is a compression coil spring. 52 is supported so as to be displaceable in the vertical direction C.

  FIG. 5 is an enlarged side view showing the holder member 47, and FIG. 6 is a cross-sectional view taken along the section line VI-VI in FIG. The holder member 47 includes a holder main body 77 and an engagement piece 79 fixed to a longitudinal end of the holder main body 77 by a screw 78.

  The holder main body 77 includes a flat and narrow plate-like portion 80, a pair of first side wall portions 81a and 81b that are bent upward at right angles from both ends in the width direction of the plate-like portion 80, and the first side walls. A pair of stepped portions 82a and 82b that are bent at right angles from the upper end portions of the portions 81a and 81b, and a bent portion that is bent at a right angle from the closest inner end of each of the stepped portions 82a and 82b and parallel to each other. And a pair of fitting portions 84a and 84b that bend and extend at right angles to the directions close to each other from the upper end portions of the second side wall portions 83a and 83b. Such a holder body 77 is realized by an extruded shape made of steel.

  The engagement piece 79 includes a pair of concave grooves 85a and 85b formed on both sides in the width direction by the plate-like portion 80 of the holder body 77, the first side wall portions 81a and 81b, and the step portions 82a and 82b. A plate-like insertion portion 86 that is inserted into the plate-like portion 80 and fixed to the plate-like portion 80 by the screw 78, and is connected to the insertion portion 86 so as to be bent at a right angle and to close an end surface of one end portion in the longitudinal direction of the holder body 77. 87, a first engagement portion 88 that is bent at a right angle from the upper end portion of the end wall portion 87 to the opposite side of the insertion portion 86, and a first engagement portion that is bent at a right angle downward from the first engagement portion 88. 2 engaging portions 89. Such an engagement piece 79 is made of a steel material.

  Referring to FIG. 1 again, the ceiling panels 42a and 42b are fixed to the field edges 91a and 91b extending in the second horizontal direction B by screws 90a and 90b together with the edge members 44a and 44b. The field edges 91a and 91b are fixed to field edge receivers 92a and 92b extending in the first horizontal direction A, and the field edge receivers 92a and 92b are suspended from concrete beams or slabs by suspension metal fittings 93a and 93b.

  One edge member 44a is made of a long and narrow steel plate, and a screw 90a makes a longitudinal direction parallel to the second horizontal direction B and a part of the other edge portion 44a of the other ceiling panel 42a. It is fixed in a state where it protrudes toward the ceiling panel 42b.

  The other edge member 44b includes a flat base 94 having a narrow width, a leg 95 having a L-shaped cross section protruding downward from the base 94, and one ceiling panel 42a than the leg 95 of the base 94. L-shaped guide section 96 that rises at a right angle upward from one end in the width direction protruding to the side, and an L-shaped cross section that continues to be bent at a right angle downward from the other width direction end of base 94 And a locking portion 97. The other edge member 44b is made of steel.

  A decorative cover 99 is attached to the other edge member 44b. The decorative cover 99 includes a flat plate portion 100, a leg portion 101 that is bent at a right angle from one end portion in the width direction of the flat plate portion 100, and has a reverse L-shaped leg portion 101, and a right angle from the other width direction end portion of the flat plate portion 100. The cross section which is bent and connected has a locking portion 102 having an inverted L shape. Such a decorative cover 99 is realized by an extruded shape made of, for example, an aluminum alloy. A packing 103 is attached to the locking portion 102.

  The decorative cover 99 is screwed onto the leg portion 95 of the other edge member 44b with the screw 104 in a state where the engagement portion 102 is hooked and locked to the engagement portion 97 of the other edge member 44b. By stopping, it is mounted on the other edge member 44b. In this state, the packing 103 elastically contacts the other ceiling panel 42b.

  A plurality of the holder members 47 described above are arranged in parallel with the bracket 51 at the same interval, and a movable cover body 48 is fixed to each holder member 47 by a plurality of screws 105. A packing 106 is attached to one end of the movable cover 48 on the side of the one ceiling panel 42a in the width direction, and elastically contacts the ceiling panel 42a. The surface of the movable cover 48 that faces the indoor space 49 is flush with the surface of the decorative cover 99 that faces the indoor space 49, and has a rugged appearance.

  Thus, in the state where the movable cover body 48 is arranged on the same plane as the decorative cover 99, the first engaging portion 88 of the holder member 47 is supported by the guide portion 96 of the other edge member 44b, and the second engaging portion is engaged. Although the displacement of the part 89 in the first horizontal direction A is prevented, it can move freely in the second horizontal direction B.

  According to the present embodiment, each of the opposing portions 43a and 43b of the two ceiling panels 42a and 42b adjacent to each other with a gap 41 in the first horizontal direction A is perpendicular to the first horizontal direction A. 2 Edge members 44a and 44b extending in the horizontal direction B are fixed.

  One edge member 44a is provided with a plurality of guide holding means 45 at intervals in the second horizontal direction B. These guide holding means 45 connect the intermediate portion of the holder member 47 in the first horizontal direction A to the second horizontal direction B. The other edge member 44b holds the other end portion of the holder member 47 in the first horizontal direction A in a state in which the movement in the first horizontal direction A is prevented. Hold it movably. A movable cover body 48 is fixed to the holder member 47, and the gap 41 between the edge members 44a and 44b is covered by the movable cover body 48.

  In this way, the intermediate portion of the holder member 47 is held movably in the first horizontal direction A by the guide holding means 45, and the other end portion is held movably in the second horizontal direction B by the other edge member 44b. Compared to the configuration in which the holder is movably held in the first horizontal direction and the second horizontal direction by the holding means provided in each ceiling structure as in the prior art, the guide holding means 45 is only on one side. Well, the number of parts can be reduced and the configuration can be greatly simplified. Therefore, when installing the expansion joint device for ceiling 40 at the site, assembly work and attachment work can be facilitated, and workability is improved.

  Further, according to the present embodiment, the guide rail 50 extending in the first horizontal direction A from the one edge member 44 a toward the other edge member 44 b is fixed to the bracket 51, and the bracket 51 is fixed to the other one by the compression coil spring 52. Since the guide holding means 45 is configured to be supported on the edge member 44a, the bracket 51 can be displaced in the vertical direction C that compresses or extends the compression coil spring 52, and the ceiling panels 42a, 42b, It is also possible to allow displacement in the vertical direction between the ceiling structures including the field edges 91a and 91b, the field edge receivers 92a and 92b, the suspension fittings 93a and 93b, and the like.

  Thus, since the bracket 51 can be displaced in the vertical direction C by the expansion and contraction of the compression coil spring 52, the holder member 47 and the movable cover body 48 held by the bracket 51 can also be displaced in the vertical direction C. be able to.

  FIG. 7 is a vertical sectional view showing a ceiling expansion joint device 40a according to another embodiment of the present invention. The ceiling expansion joint device 40a of the present embodiment is similar to the ceiling expansion joint device 40 of the above-described embodiment shown in FIGS. 1 to 6, and the other edge member 44b has a substantially vertical wall surface 110. Therefore, the corresponding parts are denoted by the same reference numerals.

  The expansion joint device for a ceiling 40a of the present embodiment is adjacent to a ceiling panel 42a that constitutes a part of one ceiling structure with a gap 41 in the first horizontal direction A, and one ceiling panel 42a. A second horizontal line perpendicular to the first horizontal direction A is fixed to the wall body 42b1 constituting a part of the other ceiling structure and the opposing portions 43a and 43b1 of the ceiling panel 42a and the wall body 42b1 facing each other. Edge members 44a and 44b1 extending in the direction B, a plurality of guide holding means 45 provided on one edge member 44a with a distance ΔL in the second horizontal direction B, one end portion 46a and the other end in the first horizontal direction A The intermediate portion between the portions 46b is held movably in the first horizontal direction A by each guide holding means 45, and the other end portion 46b in the first horizontal direction A is moved in the second horizontal direction B by the other edge member 44b. Hold freely Is includes a plurality of holder members 47, are fixed from below (lower side in FIG. 7) to each holder member 47, each of the strip 44a, the movable cover member 48 for covering the gap 41 between 44b.

  The other edge member 44b1 has a substantially L-shaped cross section, and includes a guide portion 96 similar to the other edge member 44b of the above-described embodiment, and a base 111 integrally connected to the guide portion 96. It is realized by an extruded shape made of steel. The base 111 is fixed to the wall surface 110 of the wall body 42b1 by the anchor body 112.

  The other edge member 44b1 extends in the second horizontal direction B, and the first and second engaging portions 88 and 89 of the engaging piece 79 are engaged with the guide portion 96 from above, so that the movable cover body. 48 movement in the first horizontal direction A is prevented, and movement in the second horizontal direction B is allowed.

  A packing 113 is attached to the other end portion in the width direction of the movable cover body 48 and elastically abuts against the wall surface 110 to prevent generation of a gap.

  According to the present embodiment, in the first horizontal direction A, the opposing portions 43a and 43b1 of the one ceiling panel 42a and the wall body 42b1 which are adjacent to each other with a gap 41 in the first horizontal direction A are opposed to each other. Edge members 44a and 44b1 extending in the vertical second horizontal direction B are fixed.

  One edge member 44a is provided with a plurality of guide holding means 45 at intervals in the second horizontal direction B. These guide holding means 45 connect the intermediate portion of the holder member 47 in the first horizontal direction A to the second horizontal direction B. The other edge member 44b1 holds the other end of the holder member 47 in the first horizontal direction A in the second horizontal direction B in a state where movement in the first horizontal direction A is prevented. Hold it movably. A movable cover body 48 is fixed to the holder member 47, and the gap 41 between the edge members 44a and 44b1 is covered by the movable cover body 48.

  In this way, the intermediate portion of the holder member 47 is held by the guide holding means 45 so as to be movable in the first horizontal direction A, and the other end portion is held movably in the second horizontal direction B by the other edge member 44b1, Compared to the configuration in which the holder is movably held in the first horizontal direction and the second horizontal direction by the holding means provided in each ceiling structure as in the prior art, the guide holding means 45 is only on one side. Well, the number of parts can be reduced and the configuration can be greatly simplified. Therefore, when installing the expansion joint device for ceiling 40a on site, the assembling work and the attaching work can be facilitated, and the workability is improved.

  Further, according to the ceiling expansion joint device 40a of the present embodiment, a part of one ceiling structure is configured to include the ceiling panel 43a, and even if the other ceiling structure is the wall body 42b1, A guide rail 50 extending in the first horizontal direction A from the edge member 44a toward the other edge member 44b1 is fixed to the bracket 51, and the bracket 51 is guided and held so as to be supported on the one edge member 44a by the compression coil spring 52. Since the means 45 is configured, the bracket 51 can be displaced in the vertical direction C which compresses or extends the compression coil spring 52, such as the ceiling panel 42a, the field edge 91a, the field edge receiver 92a, the suspension fitting 93a, etc. It is also possible to allow a displacement in the vertical direction C between the ceiling structure including the wall and the wall body 42b1.

It is a vertical sectional view showing expansion joint device for ceiling 40 of one embodiment of the present invention. It is a top view of the guide holding means 45 seen from the upper direction of FIG. It is a side view which expands and shows the guide holding means. It is a front view of the guide holding means 45 seen from the left side of FIG. It is a side view which expands and shows a holder member. It is sectional drawing seen from the cut surface line VI-VI of FIG. It is a vertical sectional view showing an expansion joint device for ceiling 40a according to another embodiment of the present invention. It is a vertical sectional view showing a conventional expansion joint device for ceiling 1.

Explanation of symbols

40, 40a Ceiling expansion joint device 41 Gap 42a, 42b Ceiling panel 42b1 Wall body 43a, 43b, 43b1 Opposing part 44a, 44b, 44b1 Edge material 45 Guide holding means 47 Holder member 48 Movable cover body 50 Guide rail 51 Bracket 52 Compression Coil spring 56 Base 57, 58 Guide groove 59, 60 Engagement piece 66 Spring receiving part 77 Holder body 79 Engagement piece 88 First engagement part 89 Second engagement part 99 Cosmetic cover A First horizontal direction B Second horizontal Direction C Vertical direction

Claims (1)

A ceiling expansion joint device provided between two adjacent ceiling structures with a gap in the first horizontal direction,
An edge member fixed to each facing portion of each ceiling structure facing each other and extending in a second horizontal direction perpendicular to the first horizontal direction;
A plurality of guide holding means provided on one edge member at intervals in the second horizontal direction;
An intermediate portion between one end portion and the other end portion in the first horizontal direction is held movably in the first horizontal direction by each guide holding means, and the other end portion in the first horizontal direction is held by the other edge member. A plurality of holder members held movably in the second horizontal direction in a state where movement in the horizontal direction is prevented;
Is fixed to the holder member, seen including a movable cover member for covering the gap between the edge material,
The plurality of guide holding means extend in the first horizontal direction from the one edge member toward the other edge member, and the guide rail that holds the holder member movably in the first horizontal direction is fixed to the guide rail. A ceiling expansion joint device comprising: a bracket to be mounted; and a spring for supporting the bracket on the one edge member .

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