JP2004156305A - Expansion joint and chipped part covering device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate construction work and to reduce manhours by constituting a lacking part covering device for closing a lacking part of a connecting part floor surface of a building frame and an expansion joint so as to be usable regardless of joint structure, installation place and the shape of a floor cover plate. <P>SOLUTION: This lacking part covering device is composed of respective members of a fixing frame plate fixed to and installed in mutually opposing one building frame by interposing clearance, a slidable frame plate slidably installed in the other building frame, a plurality of expansion bodies arranged so as to expand an interval between both end parts and having both end parts respectively rotatably supported by both frame plates and a beam material arranged so as to cross with these expansion bodies and having both end parts respectively rotatably supported by both frame plates. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an expansion joint that connects adjacent skeletons with a floor cover plate therebetween with a gap interposed therebetween and absorbs fluctuations due to relative displacement of the floor cover plate following skeleton fluctuations, and a defect cover device thereof.
[0002]
[Prior art]
As shown in FIG. 11A, the floor cover plate 10 is slidably installed in the gap G between the frame A and the frame B, and changes in the width direction of the frame gap (hereinafter referred to as X direction) are detected. Is absorbed by sliding back and forth along the floor 11 of the skeleton B, and the floor cover plate 10 along with the skeleton B moves along the outer wall 12 of the skeleton A together with the fluctuation of the skeleton B in the longitudinal direction (hereinafter, referred to as Y direction). In the configuration of the expansion joint that absorbs by sliding horizontally, when the amount of movement of the skeleton in the Y direction is large, for example, between the outer wall 12 of the building A and the side edge of the floor cover plate 10 (a) in FIG. A defect S as shown in FIG. For this reason, as shown in FIG. 12, a defective cover device 13 in which defective cover plates 14 and 14 are arranged on both sides of the floor cover plate 10 is installed to close the defective portion S, thereby ensuring walking safety. I am trying to do it.
[0003]
The defective cover device 13 rotatably supports the substantially triangularly formed defective cover plates 14 and 14 on the lower surface of the floor cover plate 10 whose apex end 14a is shifted toward the frame B side. The end portion 14b is elastically urged to the side by a supporting rod 15, which is also installed on the lower surface of the floor cover plate 10 and has a spring mounted on the peripheral surface, and is integrally attached to the floor cover plate 10. When the skeleton fluctuates in the X direction, the end portions 14b and 14b of the defective cover plate that protrude to the side of the floor cover plate 10 are respectively rotated inward below the floor cover plate 10 to move together with the floor cover plate 10. It slides back and forth along the floor surface 11 of the skeleton B, and slides along the outer wall 12 of the skeleton A together with the floor cover plate 10 when it largely fluctuates in the Y direction. Defects created between the edges S was provided to close deficient cover plate 14 (see Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2000-120186
[Problems to be solved by the invention]
Although the missing cover device 13 can securely close the missing portion S and can safely secure the walking path of the skeleton connecting portion even when an earthquake occurs, since the missing cover device 13 has a structure integrated with the floor cover plate 10, It is necessary to design the apparatus including the floor cover plate 10 and manufacture the constituent members for each site where the expansion joint is installed, and the construction requires a lot of man-hours.
[0006]
In view of the above problems of the prior art, the present invention relates to a defect cover device that closes a defect in the floor of a joint between a skeleton and an expansion joint, and relates to the installation location of the expansion joint, the shape of the floor cover plate, and the like. It is an object of the present invention to provide a structure that can be used by being attached to expansion joints of various structures without difficulty, and to facilitate construction and reduce man-hours.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides an expansion joint that closes a gap by slidably disposing a floor cover plate between opposing frames with a gap interposed therebetween, wherein a plurality of extensible bodies are stretchable between both ends. Are rotatably connected to the wall of one skeleton, and the other end is rotatably connected to the wall of the other skeleton so as to be slidable in the longitudinal direction of the gap, and intersects with these elastic bodies. One end of the beam member arranged as described above is rotatably connected to the wall of one skeleton, and the other end is rotatably connected to the wall of the other skeleton and slidably moves in the gap longitudinal direction integrally with the telescopic body. It is characterized in that the defective cover device configured by being connected is provided below the floor cover plate.
[0008]
In addition, the expansion joint loss cover device of the present invention includes a fixed frame plate fixedly attached to one of the opposing skeletons with a gap therebetween, a sliding frame plate slidably mounted on the other skeleton, and both ends. A plurality of elastic bodies provided so as to be able to expand and contract the interval of the parts, and both ends of each of which are rotatably supported by the two frame boards, are arranged so as to intersect with these elastic bodies, and are provided on the two frame boards. It is characterized in that both ends have a beam material rotatably supported, respectively.
[0009]
The defective cover device of the present invention is installed in a space that becomes a defective portion by sliding movement of the floor cover plate due to a change in the frame within the gap below the floor cover plate. When the floor frame fluctuates greatly in the Y direction when the skeleton fluctuates, the defective cover device is held by the defective portion formed by the sliding of the floor cover plate, and the elastic body closes the defective portion, and the floor cover is closed. A walking path is formed on the side of the board to ensure walking safety. The defective cover device is deformed according to the amount of fluctuation of the frame and its direction by the expansion and contraction of each telescopic body, rotation at both ends and sliding movement along one side of the frame wall, so that the expansion joint absorbs the fluctuation. There is no hindrance. In addition, since the missing cover device is installed separately from the expansion joint and is not configured to deform in conjunction with the sliding movement of the floor cover plate, the location of the expansion joint and the shape of the floor cover plate are different. Regardless, it can be used by being attached to an expansion joint having an appropriate structure.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
A preferred embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing the arrangement of components of an expansion joint installed in a gap G between a skeleton A and a skeleton B, and FIG. 2 is a diagram showing a side cross section of the expansion joint. As shown in FIG. A floor panel 2 that connects the floors of the adjacent frames A and B to close the gap G, elastic walls 3, 3 erected on both sides of the floor panel 2, and a lower side of the floor panel 2. And the defect cover devices 4 and 4 installed in the device. In each of the drawings except FIG. 2, the floor panel 2 and the elastic wall 3 are shown by broken lines.
[0011]
The floor panel board 2 is formed in the shape of a wide rectangular plate having a width almost twice as large as the gap G, and supports one end of the floor panel board slidably in the Y direction along the outer wall of the skeleton A. The end on the side is mounted on the floor surface of the frame B and supported so as to be slidable in the X direction.
Specifically, as shown in FIG. 2, the end 21 of the floor panel 2 on the side of the skeleton A is provided with a ridge 21 a fixed to the lower edge thereof along the lower edge of the opening 61 of the skeleton A along the outer wall. It is fitted in a horizontally extending groove 62 a protruding from the outer wall 62, and is installed so as to be able to slide horizontally while the end 21 is in contact with the outer wall 62. The end 22 of the floor panel board 2 on the skeleton B side is placed on the floor surface 71 on the skeleton B side so as to be slidable in the X direction on the floor surface. The floor panel board 2 is maintained horizontally while being supported by the skeletons A and B, forms a floor surface that is substantially flush with the floor surfaces of both bodies, and covers the opening G that faces both floor surfaces. To close the top.
[0012]
The elastic walls 3, 3 are configured to be able to expand and contract the interval between both side ends by combining a plurality of plate members having appropriate heights, and the skeleton A and the skeleton B facing each other with the gap G interposed therebetween. The both end portions are rotatably supported and mounted on the outer wall surface.
More specifically, as shown in FIG. 1, the elastic walls 3, 3 have end portions on the skeleton A side on outer walls 62, 62 on both sides of the opening 61, and a rotation axis on a skeleton gap height direction (hereinafter, referred to as Z). (Referred to as “direction”), and the other end is connected to outer walls 72, 72 erected on both sides of the floor surface 71 of the skeleton B, and the rotation axis is also set in the Z direction. Are connected to the support shafts 72a, 72a installed in the direction of the arrow. When the movement in the X direction occurs, the both ends are expanded and contracted. When the movement in the Y direction occurs, both ends are connected to the support shaft 62b. , 72a so as to be displaceable in both the X and Y directions while maintaining the connection with both frames.
[0013]
Each of the defect cover devices 4 and 4 includes a fixed frame plate 41 attached to the skeleton A, a sliding frame plate 42 attached to the skeleton B, and a plurality of elastic members 43 and beam members 44 that are attached to extend between the two frame plates. And are disposed so as to overlap with the left and right half surfaces of the floor cover plate 2 in the gap G on the lower side of the floor cover plate 2, respectively.
[0014]
Specifically, the fixed frame plate 41 is formed by bending a steel plate such as a long stainless steel plate into a substantially U-shaped cross section at a fold along the longitudinal direction, and as shown in FIG. And is horizontally fixed to the outer wall 62 of the frame A in contact with the gap G.
[0015]
The sliding frame plate 42 engages with a guide body 42c attached to the outer wall 72 of the frame B on the central surface of a frame plate formed by bending a long steel plate into a substantially U-shaped cross section in the same manner as the fixed frame plate 41, and forms the same body. An engaging body 42b formed so as to be slidable along is fixedly formed. The engaging body 42b and the guide body 42c are formed by extruding aluminum with a surface provided with concave and convex engaging streaks having a shape corresponding to the engagement. The guide body 42c is formed to be longer than the floor panel plate 2 and is shown in FIG. As shown, it is fixed to the outer wall 72 of the skeleton B facing the fixed frame plate 41 at the same height as the fixed frame plate 41 and horizontally. The sliding frame plate 42 is supported by the guide body 42c by engaging the engagement body 42b with the guide body 42c, and is installed so that the surface of the outer wall 72 can slide in the Y direction along the guide body 42c.
[0016]
As shown in FIGS. 2 and 3, the elastic body 43 is formed by engaging a pair of extruded aluminum members 431 and 432 having appropriate lengths provided with concave and convex engaging streaks having a shape corresponding to engagement on the surface. It is formed so that the interval between both end portions 43a and 43b can be expanded and contracted by sliding the two shaped members mutually along the longitudinal direction. As shown in FIGS. 3 and 4, each of the telescopic members 43 has a plurality of end portions 43 a on one side provided at regular intervals on the upper surface of the fixed frame plate 41. A plurality of support shafts 52 rotatably supported by the support shaft 51 and having a plurality of end portions 43b on the other side provided at regular intervals on the upper surface of the sliding frame plate 42, the rotation shafts being oriented in the Z direction. It is rotatably supported by and installed side by side in parallel with the upper surface of both frame plates, and by turning both ends 43a and 43b around each support shaft, the crossing angle of each elastic body 43 with respect to both frame plates is set. It can be changed (see FIGS. 5 and 6).
[0017]
In order to maintain the strength against the load applied to each elastic body 43 when a pedestrian steps on each elastic body 43 with the defective portion closed, each elastic body 43 has its short side oriented vertically. It is mounted on both frame plates. In order to prevent the pedestrian's foot from falling off, the gap between the adjacent elastic body 43, that is, the arrangement interval between the support shaft 51 and the support shaft 52 is set to about 85 mm, which is smaller than the width of a general adult shoe. .
[0018]
The beam member 44 is made of a steel material such as stainless steel. As shown in FIGS. 1 and 3, the beam member 44 is disposed so as to intersect with the respective elastic members 43 below the both frame plates, and one end of the beam member 44 is fixed to the fixed frame. The lower surface of the end portion 41a of the plate 41 is rotatably connected to a support shaft 53 installed immediately below the support shaft 51 in the same direction as the support shaft 51, and the other end is a sliding frame plate 42. On the lower surface of the end 42a, the rotating shaft is directed to the same direction as the support shaft 52 and is rotatably connected to a support shaft 54 installed immediately below the support shaft.
[0019]
The defect cover device 4 composed of these members has a fixed frame plate 41 and a sliding frame plate 42 juxtaposed at appropriate intervals, and both end portions 43a of the elastic members 43 are attached to the support shafts 51 and 52 provided on the upper surface thereof. , 43b, and both ends of the beam member are pivotally attached to a support shaft 53 and a support shaft 54 provided on the lower surface thereof.
In a state in which the two frame plates are separated by the width (g) of the gap G, as shown in FIG. The arrangement is obliquely inclined. In the same figure, when the beam member 44 rotates clockwise around the support shaft 53 while the fixed frame plate 41 is fixed, each telescopic body 43 expands, and at the same time, the sliding frame plate 42 slides to the left and the gap width is increased. When the beam member 44 rotates counterclockwise about the support shaft 53, the telescopic members 43 contract and the sliding frame plate 42 slides rightward to reduce the gap width g. In other words, as the beam member 44 rotates about the support shaft 53 as a fulcrum, each of the support shafts 52 on the upper surface of the sliding frame plate 42 moves along the trajectory parallel to the rotation trajectory of the end of the beam material 44. The elastic members 43 are elastically deformed in response to this, and the gap width g is expanded and contracted.
[0020]
As shown in FIG. 1, in the expansion joint 1 of the present embodiment, since the gap G on both sides of the floor cover plate 2 may become a defect, the defect cover device 4, 4 are installed. In the figure, of the two defective cover devices 4, 4 installed in the gap G, the left side has the configuration shown in FIG. 4 and the right side has a left-right symmetry with the configuration shown in FIG. It was done.
In the expansion joint 1 configured as described above, the floor cover plate 2 supported by the lower edge of the opening 61 of the skeleton A extends horizontally into the gap G and overlaps with the floor surface 71 of the skeleton B to close the gap G. I do.
[0021]
When the frames A and B fluctuate in the X direction due to an earthquake or the like and the gap G narrows, the floor cover plate 2 slides on the upper surface of the floor surface 71 in the same direction due to the fluctuation of both frames, and the elastic wall The body 3 also contracts in the same direction to absorb the fluctuation. At this time, as shown in FIG. 7, in the defective cover device 4, the sliding frame plate 42 is slid toward the center of the floor cover plate 2 by the compression applied to the beam member 44 due to the change of the two frames, and Accordingly, each elastic body 33 contracts and is folded in the narrow gap G.
[0022]
On the other hand, when the skeletons A and B move in the X direction and the gap G widens, the floor cover plate 2 slides on the upper surface of the floor surface 71 in the same direction, and the elastic wall 3 also extends in the same direction. To absorb fluctuations. At this time, as shown in FIG. 8, in the defective cover device 4, the sliding frame plate 42 is slid to the outside of the floor cover plate 2 by the pulling force applied to the beam member 44 due to the change of the two frames, and Accordingly, each elastic body 33 extends and greatly expands between the widened gaps G.
[0023]
Further, when the frames A and B move in the Y direction and the positions of the frames are shifted in the same direction, the floor cover plate 2 is moved along with the frame B along the outer wall 62 of the frame A along with the fluctuation of the frames. The telescopic walls 3, 3 extend while rotating both ends to absorb fluctuations. At this time, as shown in FIG. 9, since the sliding frame plate 42 is relatively slid along the outer wall 72 of the skeleton B and held in the original mounting shape, as shown in FIG. The missing portion S between the outer surface of the cover plate 2 and the missing portion S is closed by a plurality of elastic members 43 juxtaposed at the position, and a walking path is formed on the side of the floor cover plate 2 to ensure walking safety. it can.
[0024]
When the skeletons A and B change in both the X and Y directions, the floor cover plate 2 and the elastic walls 3 and 3 are displaced according to the change in the skeletons to absorb the change, as described above. At this time, the defective portion S between the opening 61 and the outer surface of the floor cover plate 2 formed along with the movement of the two frames in the Y direction is also located on the side of the floor cover plate 2 as shown in FIG. It is closed by the overhanging defective cover device 4, and the safety of walking can be ensured.
[0025]
Although the figure shows an expansion joint in which both sides of the floor cover plate are gaps, the present invention can be applied regardless of the shape of the cover plate, the fluctuation absorbing structure, and the state of the frame. In addition, the illustrated forms of the floor cover plate, the elastic wall body, and the defective cover device are merely examples, and each member can be provided in another appropriate form.
Although the elastic body is configured using the aluminum shape member that slides and engages, the elastic body may be configured using another elastic member having strength that does not cause deformation even when walking. The telescopic member and the beam member may be attached by directly fixing the ends of both members to the wall surface of the skeleton without interposing a fixed frame plate or a sliding frame plate, or by slidably attaching. It is appropriate to provide the defective cover device of the present invention with a function of absorbing a fluctuation in the Z direction of the skeleton.
[0026]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the defect part formed by sliding movement of the floor cover plate is closed by the elastic body of the defect cover device, and a walking path is formed on the side of the floor cover plate to ensure walking safety. Can be. In addition, since the defective cover device is installed separately from the expansion joint and is not configured to operate in conjunction with the sliding operation of the floor cover plate, regardless of the installation location of the expansion joint or the shape of the floor cover plate, It can be used by being attached to expansion joints of various structures, thereby facilitating construction and reducing man-hours.
[Brief description of the drawings]
FIG. 1 is a view showing an arrangement of components of an expansion joint according to an embodiment of the present invention.
FIG. 2 is a diagram showing a side cross section of the expansion joint of FIG. 1;
3A is a cross-sectional view taken along the line AA of FIG. 2, and FIG. 3A is a cross-sectional view taken along the line II.
FIG. 4 is a plan view showing a configuration of a defective cover device according to one embodiment of the present invention.
FIG. 5 is an external view showing a configuration of a defect cover device according to another embodiment of the present invention.
FIG. 6 is an external view showing a state in which an elastic body of the defective cover device of FIG. 5 is rotated at an end.
FIG. 7 is a view showing the operation of the defect cover device when the expansion joint of FIG. 1 narrows the skeleton gap in the X direction.
FIG. 8 is a diagram showing the operation of the defect cover device when the expansion joint of FIG. 1 widens the skeleton gap in the X direction.
FIG. 9 is a view showing the operation of the defect cover device when the expansion joint of FIG. 1 shifts the skeleton gap in the Y direction.
10 is a view showing the operation of the defect cover device when the expansion joint of FIG. 1 displaces the skeleton gap in both the X and Y directions.
11A and 11B show a configuration of a conventional expansion joint, wherein FIG. 11A shows a state where the cover plate is slid in the Y direction, and FIG.
FIG. 12 is a diagram showing a configuration of a conventional defective cover device as viewed from below a floor cover plate.
[Explanation of symbols]
A frame, B frame, G gap, S deficient part, 1 expansion joint, 2 floor cover plate, 3 telescopic wall, 4 defective cover device, 41 fixed frame plate, 42 sliding frame plate, 43 telescopic body, 44 beam material, 51 to 54 support shaft, 61 opening of frame A, 62 outer wall of frame A, 71 floor of frame B, 72 outer wall of frame B

Claims (2)

In an expansion joint that closes the gap by installing a floor cover plate slidably between opposing skeletons with a gap interposed,
One end of each of a plurality of telescopic members that can be extended and contracted between both ends is rotatably connected to the wall of one skeleton, and the other end is rotatable with the wall of the other skeleton and is slidable in the gap longitudinal direction. And one end of the beam member arranged so as to intersect with the elastic body is rotatably connected to the wall of one skeleton, and the other end is rotatably connected to the wall of the other skeleton and the elastic body An expansion joint, wherein a defective cover device, which is integrally connected to the gap slidably in the longitudinal direction of the gap, is provided below the floor cover plate. A fixed frame plate fixedly attached to one of the opposing skeletons with a gap interposed therebetween, a sliding frame plate slidably mounted on the other skeleton, and provided so as to expand and contract the gap between both ends. A plurality of telescopic members whose both ends are rotatably supported by the two frame plates, and a beam member which is arranged to intersect with these telescopic members and whose both ends are rotatably supported by the two frame plates, respectively. A defect cover device for an expansion joint configured to include:

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