JP3586263B2 - Expansion joint for ceiling - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a ceiling expansion joint for covering a skeleton gap of a ceiling.
[0002]
[Prior art]
As a ceiling expansion joint, for example, one disclosed in Japanese Patent Application Laid-Open No. 2000-240176 is known. As shown in FIG. A cover member 105 is provided so as to cover the gap 104. The cover member 105 is rotatably attached to the frame 102, and when the gap becomes narrow, as shown in FIG. 8B, the cover member 105 can be lifted above the ceiling member 103 to absorb the fluctuation. it can.
[0003]
[Problems to be solved by the invention]
However, in the expansion joint 101, since the cover member 105 is placed above the ceiling member 103 to absorb the fluctuation, the width A above the ceiling member 103 needs to be a space portion larger than the movable amount. As a result, the overhang of the ceiling member 103 is prolonged, and the tip of the ceiling member 103 is sagged. In order to cope with this, reinforcement has to be performed, which has been a problem in construction.
[0004]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems and to conceive a new configuration. It is an object of the present invention to provide a ceiling expansion joint capable of absorbing fluctuations in all directions by a configuration and operation that can be accommodated within a gap width.
[0005]
[Means for Solving the Problems]
The present invention provides a ceiling expansion joint for covering a skeleton gap of a ceiling, a holder material rotatably connected to one skeleton, and one end rotatably connected to the other skeleton, and the other end being a holder material. An arm member rotatably and slidably connected in the middle direction of the skeleton gap in an intermediate portion in the width direction of the skeleton gap, and a holder material and an arm material which are higher than each of the connecting shaft portions of the skeleton and the holder material and the skeleton and the arm material; Characterized in that it has a configuration in which a connecting rotary shaft portion is formed upward.
[0006]
In this way, when the gap is narrowed in the width direction of the skeleton gap, the connection between the holder material and the arm material located above the connection rotation shaft portion between the skeleton and the holder material and between the skeleton and the arm material. A load is applied to the rotating shaft portion to receive this stress, and one end of the holder material and the arm material are rotatably connected to the arm material at an intermediate portion of the holder material so that the holder material and the arm material are rotatable. Rises upward, and the rotation movement within the gap width of the frame can absorb the frame fluctuation.
Further, when the gap is widened in the width direction of the skeleton, the arm member is slidably connected to the intermediate portion of the holder member, so that the arm member slides on the holder member to absorb the fluctuation. .
In addition, the said structure can also absorb the skeleton variation in the skeleton gap depth direction as it is.
[0007]
The holder material is preferably connected to the skeleton so as to be slidable in the longitudinal direction of the skeleton gap. In this case, the holder material can slide in the longitudinal direction of the skeleton gap. It becomes an expansion joint that can follow.
[0008]
The holder material has a rotating portion at one end and forms a sliding portion from the intermediate portion to the other end, and the arm material has a configuration in which the intermediate portion is curved upward, and the tip of the holder material has The arm member may be rotated along the curved portion. In this case, even if the arm member and the holder material are lifted, only the ceiling material attached to the lower surface of the holder material is seen from below, and the appearance is improved. Excellent.
[0009]
The skeleton gap width direction is a direction in which adjacent skeletons approach and separate from each other, the skeleton gap longitudinal direction is a direction in which adjacent skeletons slide horizontally in each other, and the skeleton gap depth direction is This is a direction orthogonal to the width direction and the longitudinal direction.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a side view of a first embodiment of a ceiling expansion joint of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 shows an operation state when a gap in FIG. 1 is narrowed. FIG. 4 is a side view showing an operation state when the gap in FIG. 1 is widened, FIG. 5 is a schematic perspective view of the holder member and the arm member of the second embodiment, and FIG. 7A is a schematic exploded perspective view of the holder member and the arm member of the embodiment, FIG. 7A is a schematic side view showing an operation state when the gap in FIG. 6 is narrow, and FIG. It is the schematic side view which showed the operation state at the time of becoming wide.
[0011]
As shown in FIG. 1, the ceiling expansion joint 1 of the first embodiment includes a holder member 2, an arm member 3, a sliding member 4, a holder member fixing portion 5, and an arm member fixing portion 6 as main components. I have.
[0012]
As shown in FIGS. 1 and 2, the holder member 2 is a flat plate that is bent at a substantially central portion in a substantially crank shape in cross section, and is formed in a roll shape so as to hold the connecting shaft 21 on the frame 7A side. 22 is provided, and is extended in a flat plate shape from the other body 7B side, and the lower surface of the tip is opened downward in a concave shape, and serves as a fixing portion 25 for fixing a ceiling material fixture 24 to which a ceiling material 23 can be attached. A rising portion is provided substantially vertically above the fixing portion 25, and a plate-like sliding portion 26 is provided which is bent and slightly inclined downward toward the building body 7 </ b> B. There is provided a guide portion 28 which is formed so as to be able to be mounted on the arm material fixing portion 6 and locked therewith, inclining upward and rising to the contacting lower folded piece 27. A notch 29 for inserting the arm member 3 is formed substantially at the center of the front end of the guide portion 28.
The holder member 2 is rotatably connected to the holder member fixing portion 5 by holding the connecting shaft 21 with the rotating portion 22, and the ceiling member mounting member 24 is fixed to the fixing portion 25 with a screw 25 a or the like. The ceiling member 23 can be attached and fixed to the ceiling member fixture 24.
[0013]
The arm member 3 has an arc-shaped rising arm portion 31, a substantially straight arm portion 32, and a drooping connection portion 33 connected to the sliding member 4 continuously formed to be upwardly curved, and has a curved outer side above the drooping connection portion 33. Is provided with a stopper 34. The arm member 3 is rotatably connected to the arm member fixing portion 6 by inserting a connection shaft 36 into a connection hole 35 formed at the lower end of the arm portion 31, and a connection hole formed at the lower end of the hanging connection portion 33. A connecting shaft 38 is inserted through 37 and rotatably connected to the sliding member 4.
The arm portion 31 is preferably formed in an arc shape centered on the connection hole 37 of the hanging connection portion 33 and having the connection hole 35 and the connection hole 37 of the arm portion 31 as radii. It is preferable to bend the arm 31 at an arbitrary position to be regulated and to form the arm 32 continuously.
When attached to the frame gap, the connecting rotary shaft portion A of the connecting shaft 38 is positioned higher than the connecting rotary shaft portion B of the connecting shaft 21 and the connecting rotary shaft portion C of the connecting shaft 36, It is preferable that B, the connection rotation shaft portion A and the connection rotation shaft portion C have a positional relationship of 160 degrees.
[0014]
The sliding member 4 forms a C-channel-shaped holding portion 41 that can slidably hold the sliding portion 26 of the holder material 2, and cuts and raises a part of the upper surface 41 a of the holding portion 41 on the skeleton 7 A side, A connection surface 42 is formed by being raised substantially vertically, and a connection hole 43 that can be connected to the connection hole 37 of the hanging connection portion 33 of the arm member 3 via the connection shaft 38 is formed in the connection surface 42, and a frame of the upper surface 41 a is formed. The locking surface 44 is formed by bending the 7A side upward and further bending its tip outward so as to face the stopper 34 of the arm member 3. An insertion hole 45 is formed in the stopper engagement portion of the engagement surface 44, and a nut 46 is fixed to the insertion hole 45 by welding or the like so that the adjustment bolt 47 can be fastened. Abuts against the stopper 34 of the arm member 3 to prevent excessive rotation of the arm member 3, in other words, to perform a positioning function of the lower end position of the hanging connection portion 33, that is, the position of the ceiling surface of the ceiling member 23. By adjusting the adjustment bolt 47, the holder member 2 can be adjusted horizontally and can be adjusted flush with the skeletons 7A and 7B (the ceiling surface).
[0015]
The holder material fixing portion 5 includes a fixing member 51, a sliding piece 52, and a shaft fixing piece 53. The fixing member 51 is a plate material having a substantially L-shaped cross section. A mounting hole 51b through which a bolt or the like can be inserted is formed. Above the side surface 51c, a holding portion 54 having a substantially C-shaped cross section capable of slidably holding the sliding piece 52 is formed. The holding portion 54 is bent vertically below the skeleton gap direction, and a blindfold is provided on the side surface 51c. Rubber material 55 or the like can be attached.
[0016]
The sliding piece 52 is bent perpendicularly toward both sides of the upper side of the sliding face 56 sandwiched by the sandwiching portion 54 of the fixing member 51 toward the frame gap to form a fixing surface 57 to which the shaft fixing piece 53 is attached. A fixing hole 57a for fastening a screw or the like is formed on the surface.
The shaft fixing piece 53 is provided with a mounting hole 58a at the same position as the fixing hole 57a on a substantially rectangular plate-shaped mounting surface 58 to be mounted on the fixing surface 57 of the sliding piece 52 so as to be mounted on the sliding piece 52. I have. The shaft is bent vertically downward from the mounting surface 58, and furthermore, both ends thereof are bent toward the frame gap to form a shaft fixing surface 59, and a shaft hole 59a is formed on the surface so that the connecting shaft 21 can be inserted. ing.
[0017]
The arm member fixing portion 6 includes a fixing member 61 and arm member fixing tools 62A and 62B. The fixing member 61 has a mounting hole 61b through which a bolt or the like for mounting to the frame 7B can be inserted into a substantially rectangular plate-like upper surface 61a. And an inclined surface 61c which is inclined downward from the upper surface 61a toward the skeleton gap is formed, and a fixing portion 63 capable of fixing the arm material fixing tools 62A and 62B is provided below the inclined surface 61c. The fixing portion 63 is formed with a protrusion 63b protruding from the lower end of the inclined surface 61c to the skeleton gap side above the horizontally provided fixing surface 63a, and protruding upward from the skeleton gap side of the fixing surface 63a. A portion 63c is formed so that the arm material fixing tools 62A and 62B can be clamped. A fastening hole 63d for fastening the arm material fixing tools 62A and 62B with screws or the like is formed on the fixing surface 63a. The distal end of the fixing portion 63 is bent downward, and the lower end thereof is bent perpendicularly to the gap direction of the skeleton, so that a rubber member 55 for blindfold can be attached on the surface.
[0018]
The arm material fixing tools 62A and 62B are provided with a fixing hole 64a for fixing the fixing portion 63 of the fixing member 61 in a substantially rectangular plate-shaped fixing surface 64, and one end of the arm material fixing tool 62A is bent vertically upward. A mounting surface 65 is formed, and a distal end thereof is bent vertically inward to form a guide piece 66 on which the guide portion 28 of the holder material can be placed in a normal state. On the arm material mounting surface 65, a shaft hole 65a for inserting the connecting shaft 36 is formed. Further, arm portions 67a and 67b extend from both sides of the arm material mounting surface 65 of the fixing surface 64, and one of the arm portions 67a is bent into a crank shape.
When attaching the arm material fixing devices 62A and 62B, the arm material mounting surfaces 65 of the arm material fixing devices 62A and 62B face each other, the arm material 3 is sandwiched therebetween, and the connection shaft 36 is inserted into the shaft hole 65a and the connection hole 35. Then, the arm portions 67a and 67b are configured so that the other arm portion 67b enters below the arm portion 67a bent in a crank shape. Then, the fixing holes 64a are aligned with the fastening holes 63d of the fixing member 61 and fastened and fixed with screws or the like.
[0019]
The operation of the ceiling expansion joint 1 will be described below.
Normally, as shown in FIG. 1, the gap 71 between the skeletons 7A and 7B is covered with a ceiling member 23, and a plurality of ceiling expansion joints 1 are installed so as to support the ceiling member 23 in the longitudinal direction of the skeleton gap. I have. At this time, the holder member 2 is supported by placing the frame 7A side on the holder member fixing portion 5 with the connection shaft 21 and the guide portion 28 on the frame 7B side on the guide piece 66 of the arm member fixing portion 6. Have been.
When the holder member 2 is to be adjusted horizontally, it can be adjusted by rotating the adjustment bolt 47.
[0020]
When the gap 71 becomes narrow in the frame gap width direction, as shown in FIG. 3, the connecting rotary shaft portion A is formed at a position which is normally higher than the connecting rotary shaft portion B and the connecting rotary shaft portion C. Therefore, a load is applied to the connecting rotary shaft portion A, and the stress causes the holder member 2 and the arm member 3 to lift upward, thereby absorbing fluctuations of the frames 7A and 7B. Even if such a movement is made, as shown in the drawing, each member is configured to substantially fit within the width of the gap 71.
[0021]
When the gap 71 becomes wide in the frame gap width direction, as shown in FIG. 4, the sliding portion 26 of the holder member 2 and the sliding member 4 connected to the arm member 3 are slidably connected. Therefore, the sliding material 4 slides on the sliding portion 26 to absorb the fluctuation.
[0022]
If a change occurs in the longitudinal direction of the frame gap, the sliding surface 56 of the sliding piece 52 is slidably connected to the holding portion 54 of the fixed member 51. By sliding, it is possible to follow the fluctuation, and by combining with the above, it is possible to cope with fluctuation in all directions.
[0023]
In the second embodiment shown in FIG. 5, the holder member 2 is a plate member bent in a substantially U-shape in cross section, a connection hole 81 is formed in a lower portion of the side surface 82 near the frame 7A, and the upper portion is lightened. A guide portion 83 is formed at the other end, which is inclined downward toward the frame 7A. Further, a sliding portion 84 having a long hole is provided at a position above the side surface 82 from substantially the center to the guide portion 83 side.
The arm member 3 is a plate member having a substantially U-shaped cross section, and a connection hole 85 for connecting to the frame 7B is formed below the arm portion 31 formed in an arc shape. Further, the arm 31 is bent at a predetermined position to form a substantially linear arm 32, and a connection hole 86 is formed at the tip of the arm 32. The connection hole 86 and the sliding portion 84 are connected via a connection shaft 87. Are connected so as to rotate and slide. In addition, the position of the long hole of the sliding portion 84 is set to be higher than the connection hole 81 of the holder member 2 and the connection hole 85 of the arm member 3.
Even with such a shape, the same effect as that of the first embodiment can be obtained. Since the plate is bent and formed, it can be easily manufactured at low cost.
[0024]
In the third embodiment shown in FIG. 6, the holder 2 is formed by cutting out the skeleton 7A side of a substantially rectangular plate, and forming a connecting hole 91 connected to the skeleton 7A below the skeleton 7A. I have. In addition, a long hole is formed in the upper part near the skeleton 7B from substantially the center toward the skeleton 7B to form a sliding portion 92.
The arm member 3 has a substantially rectangular plate-like member that bulges out substantially in the center in an arc shape, forms a bulging surface 93, and has a connecting hole 95 through which a connecting shaft 94 is inserted. Further, a connection hole 96 for connecting to the skeleton 7B is formed in a lower portion of the arm member 3 near the skeleton 7B, and a ceiling material attachment 24 to which a ceiling material can be attached is provided in a longitudinal direction of the skeleton gap. . At the time of installation, the holder member 2 is sandwiched between the arm members 3, and the connection hole 95 and the sliding portion 92 are connected via a connection shaft 94 so as to be rotatable and slidable. The position of the long hole of the sliding portion 92 is set higher than the connection hole 91 of the holder member 2 and the connection hole 96 of the arm member 3.
In this manner, when the gap 71 becomes narrow in the frame gap width direction, as shown in FIG. 7A, when the holder material 2 is lifted, it is rotatably connected by the connection shaft 94. Therefore, the arm member 3 is also lifted, and the fluctuation can be absorbed.
When the width increases in the frame gap width direction, as shown in FIG. 7B, the connecting shaft 94 connected to the arm member 3 is slidably connected to the sliding portion 92 of the holder member 2. Therefore, the holder member 2 and the arm member 3 slide in the direction in which the holder member 2 and the arm member 3 are separated from each other, and the fluctuation can be absorbed.
[0025]
【The invention's effect】
The ceiling expansion joint of the present invention has a structure in which the holder material and the arm material are rotatably installed on the skeleton, and are rotatably and slidably connected to each other, so that even if a variation occurs in the width direction of the skeleton gap, the width of the gap is reduced. With a ceiling expansion joint that can cope with fluctuations in the longitudinal direction of the skeleton by connecting the holder material so that it can slide in the longitudinal direction of the skeleton, can do.
[Brief description of the drawings]
FIG. 1 is a side view of a first embodiment of a ceiling expansion joint of the present invention.
FIG. 2 is an exploded perspective view of the ceiling expansion joint of FIG.
FIG. 3 is a side view showing an operation state when the gap in FIG. 1 is narrowed.
FIG. 4 is a side view showing an operation state when the gap in FIG. 1 is widened.
FIG. 5 is a schematic perspective view of a holder member and an arm member of a ceiling expansion joint according to a second embodiment of the present invention.
FIG. 6 is a schematic exploded perspective view of a holder material and an arm material of a third embodiment of the ceiling expansion joint of the present invention.
7A is a schematic side view illustrating an operation state when the gap in FIG. 6 is narrow, and FIG. 7B is a schematic side view illustrating an operation state when the gap in FIG. 6 is wide; FIG.
FIG. 8A is a side view of a conventional ceiling expansion joint, and FIG. 8B is a side view showing an operation state when a gap in FIG. 8A is narrowed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Expansion joint 2 for ceilings 2 Holder material 21 Connecting shaft 22 Rotating part 23 Ceiling material 24 Ceiling material fixture 25 Fixed part 25a Screw 26 Sliding part 27 Lower folded piece 28 Guide part 29 Notch 3 Arm material 31 Arm part 32 Arm part 33 Hanging Connection Portion 34 Stopper 35 Connection Hole 36 Connection Shaft 37 Connection Hole 38 Connection Shaft 4 Sliding Material 41 Nipping Portion 41a Upper Surface 42 Connection Surface 43 Connection Hole 44 Locking Surface 45 Insertion Hole 46 Nut 47 Adjustment Bolt 5 Holder Material Fixing Part 51 Fixing member 51a Upper surface 51b Mounting hole 51c Side surface 52 Sliding piece 53 Shaft fixing piece 54 Nipping part 55 Rubber material 56 Sliding surface 57 Fixing surface 57a Fixing hole 58 Mounting surface 58a Mounting hole 59 Shaft fixing surface 59a Shaft hole 6 Arm Material fixing portion 61 Fixing member 61a Upper surface 61b Mounting hole 61c Inclined surfaces 62A, 62B Arm material fixing tool 63 Fixing portion 63a Fixation 63b Projection 63c Projection 63d Fastening hole 64 Fixed surface 64a Fixed hole 65 Arm material mounting surface 65a Shaft hole 66 Guide pieces 67a, 67b Arms 7A, 7B Frame 71 Gap 81 Connection hole 82 Side surface 83 Guide portion 84 Slide portion 85 Connecting hole 86 connecting hole 87 connecting shaft 91 connecting hole 92 sliding portion 93 bulging surface 94 connecting shaft 95 connecting hole 96 connecting hole 101 expansion joint 102 body 103 ceiling material 104 gap 105 cover material

Claims (3)

In a ceiling expansion joint that covers the gap between the ceiling frames, a holder material rotatably connected to one frame and one end rotatably connected to the other frame, and the other end in the width direction of the frame gap of the holder material Arm member connected rotatably and slidably in the gap width direction of the skeleton at the middle part of the frame. An expansion joint for a ceiling, comprising a configuration in which a shaft portion is formed upward. The ceiling expansion joint according to claim 1, wherein a holder material is connected to one of the frames so as to be slidable in the longitudinal direction of the frame gap. The holder material has a rotating portion at one end and forms a sliding portion from the intermediate portion to the other end, and the arm material has a configuration in which the intermediate portion is curved upward, and the tip of the holder material has 3. The ceiling expansion joint according to claim 1, wherein the ceiling expansion joint rotates along a curved portion of the arm member.

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