JP2004027638A - Joint cover device for floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint cover device for floor capable of preventing from being a traffic obstruction caused by the state of an end cover plate projecting in the air when the free end of a cover body shifts upward along the inclined receiving edge of a slide receiving frame body due to the large relative displacement of the floors of adjacent buildings in the approaching direction in case of an earthquake. <P>SOLUTION: The end cover plate 4 is pivotally connected in a rotatable manner to the upper part of the edge 3 of the free end of the cover body C so as to be flush with the upper face of the cover body C, and an energizing means is provided for energizing the end cover plate 4 in a downward rotating direction. Consequently, when the free end of the cover body C shifts upward along the inclined receiving edge 1b of the slide receiving frame body 1, the end cover plate 4 inclines downward and slides with the outer end in constant close contact with a floor face f2 so as to be prevented from projecting in the air. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a floor joint covering device that covers a joint between floors of adjacent buildings.
[0002]
[Prior art]
In a building whose lower part is supported by a seismic isolation device having a cushioning function, there is a tendency that horizontal shaking during an earthquake is large. Around this type of seismically isolated building, a relatively wide joint capable of absorbing the shaking is formed between the adjacent artificial ground, which is suitable for the joint of such a seismically isolated building. A floor joint covering device that can be used has already been proposed by the present applicant, for example, as Japanese Patent Application Laid-Open No. 10-317516.
[0003]
As shown in FIG. 13A, such a floor joint cover device is inserted between a floor f of a building A as a building and a building B as an artificial ground adjacent to the floor f via a joint s. One end of a cover body C which is passed over and covers the joint s is swingably connected to a side edge of the floor f via a connecting means a, and the other end of the cover body C is used as a free end. Is provided with an inclined edge b inclined from the lower surface toward the upper surface of the outer end, and an end cover plate c is constructed so as to be substantially flush with the upper surface d of the cover C from above the inclined edge b. While projecting toward the object B, a horizontal receiving edge e is provided on a side edge of the building B, and an inclined receiving edge g is provided at an outer end of the horizontal receiving edge e in the same direction as the inclined edge b. And a free end of the cover C is mounted on the horizontal receiving edge e of the sliding receiving frame h. The outer end of the end cover plate c is mounted on the floor surface i of the building B, and the end cover plate c causes the gap between the inclined edge b of the cover C and the inclined edge g of the sliding receiving frame h. Is configured to shield the upper part of the working gap j generated in the above.
[0004]
When the building A and the adjacent building B are relatively displaced relatively in the approaching direction during the earthquake, the free end of the cover C is positioned on the horizontal receiving edge e of the sliding receiving frame h. Is horizontally slid within the range of the working gap j to follow the relative displacement, and when the relative displacement is further increased, as shown in FIG. 13B, the cover body C is freely pivoted with the connecting means a at one end as a fulcrum. The inclined edge b formed at the end shifts along the inclined receiving edge g of the sliding receiving frame h, so that the relative displacement can be escaped.
[0005]
[Problems to be solved by the invention]
By the way, in the floor joint cover device having such a conventional configuration, the building A and the adjacent building B are relatively displaced in the direction in which the building A and the adjacent building B approach each other due to the earthquake, and the free end of the cover body C is When the vehicle rides on B, as shown in FIG. 13B, the end cover plate c protrudes in the hollow, and there is a possibility that the vehicle may become an obstacle to traffic.
[0006]
As an attempt to solve the above problem, Japanese Patent Laid-Open Publication No. 2000-328677 discloses a configuration in which a triangular prism-shaped protection body is rotatably attached to a lower part of an edge of a cover body (joint plate). However, when the edge of the cover body rides on the floor surface, the protection body pivots so as to open outward with the lower end as a fulcrum, so that between the edge of the cover body and the protection body. There is a gap that opens upward. For this reason, there is a risk that a pedestrian may trip or the heel of high heels may be caught in the gap, and the above problem has not been completely solved.
[0007]
On the other hand, in the floor joint cover device of the conventional configuration, when the building A and the building B are relatively displaced in the front-rear direction (the direction along the joint s), the front and rear directions of the free end of the cover body C are determined. It is necessary to secure a space corresponding to the movement width on both front and rear sides of the free end, and as shown by a chain line in FIG. 14, rising portions k, k such as walls are formed on both front and rear sides of the free end of the cover body C. Therefore, there is a problem that the method cannot be applied to a place where the space cannot be secured.
[0008]
An object of the present invention is to provide a floor joint cover device that can solve such a conventional problem.
[0009]
[Means for Solving the Problems]
According to the present invention, one end of a cover body that is inserted into a joint between floors of an adjacent building and covers the joint is held at a side edge of one floor via a holding means so as to be immovable at least in the joint width direction. The other end of the cover body is a free end, and an end cover plate is rotatably connected to an upper portion of an edge of the free end so as to be substantially flush with an upper surface of the cover body. A biasing means for biasing the cover plate in the downward rotation direction is provided, while a slide provided with a horizontal receiving edge and an inclined receiving edge inclined upward from the outer end of the horizontal receiving edge on the side edge of the other floor. A moving receiving frame is provided, the free end of the cover is mounted on the horizontal receiving edge of the sliding receiving frame, and the outer end of the end cover plate is mounted on the other floor. It is characterized in that the end cover plate shields above the working gap created between the edge of the free end and the inclined receiving edge of the sliding receiving frame. A floor joint cover device to.
[0010]
In such a configuration, when the floors of adjacent buildings are relatively displaced in the direction of approaching each other at the time of the earthquake, the free end of the cover body is displaced along the inclined receiving edge of the sliding receiving frame, and the relative displacement is increased. escape. At this time, since the end cover plate pivotally connected to the upper end of the free end is urged downward, the outer end of the end cover plate is always in close contact with the floor surface and slides. As a result, it is possible to prevent a traffic obstruction caused by the state in which the end cover plate protrudes into the air as in the related art. Also, since the end cover plate is urged in the downward rotation direction, it does not flutter due to the impact of the earthquake, and furthermore, since the end cover plate is inclined downward from the upper end of the free end, There is no gap between the edge of the free end and the end cover plate.
[0011]
In addition, a configuration in which a biasing means for biasing the end cover plate in the downward rotation direction is a tension spring having one end connected to the lower surface of the end cover plate and the other end connected to a lower portion of the free edge. Suggested. This makes it possible to obtain an urging means which has a simple structure, is easy to manufacture, is relatively inexpensive, has excellent durability, and produces a required urging action.
[0012]
Further, a holding means for holding one end of the cover body is provided at a slider provided at one end of the cover body and at a side edge of one floor to support the slider slidably in a direction along the joint. You may make it comprise with a rail member. In such a configuration, when the floors of adjacent buildings are relatively displaced in the front-rear direction (direction along the joint) during an earthquake, one end of the cover body is slid via the sliding action of the slider supported by the rail member. Slides back and forth along the side edge of one floor to follow its relative displacement. This makes it possible to apply the floor joint cover device to a place where a rising portion such as a wall is formed on both front and rear sides of the free end of the cover body.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
In the drawings, A is a building having a seismic isolation structure whose lower part is supported by a seismic isolation device (not shown) having a buffer function, and B is a building made of artificial ground formed around the building A. And are adjacent via the joint s. The joint s is formed with a predetermined width along the periphery of the building A, and can absorb a relative horizontal swing of the building A and the surrounding building B during an earthquake.
[0014]
On the side edge of the floor f2 of the building B, a horizontal receiving edge 1a which is relatively long in the left-right direction (the width direction of the joint s) in the drawing, and from the outer end of the horizontal receiving edge 1a toward the upper surface of the floor f2. A sliding receiving frame 1 having an inclined receiving edge 1b that is inclined upward is provided. The sliding receiving frame 1 is formed to have a predetermined length so as to extend in a direction along the joint s, and as shown in FIG. The operating gaps 2b are formed so that the cover C can slide in the front-rear direction (the direction along the joint s).
[0015]
A cover C extends between the floor f1 of the building A and the floor f2 of the building B, and covers the joint s. A plurality of the cover bodies C are continuously arranged in the direction along the joints s. As shown in FIG. f1 is swingably connected to a side edge of the f1 through a connecting means 5 described later, the other end is a free end, and the free end is slidable on the horizontal receiving edge 1a of the sliding receiving frame 1. It is on board. Here, the free end of the cover C is mounted on the horizontal receiving edge 1a such that a gap having an appropriate width is formed between the edge 3 and the inclined receiving edge 1b of the sliding receiving frame 1. This gap is defined as the working gap 2a.
[0016]
Further, on the horizontal receiving edge 1a of the sliding receiving frame 1 on which the free end of the cover C is mounted, a thin plate-shaped packing 15 having a smooth surface such as Teflon coating is attached on the upper surface. The sliding surface of the packing 15 facilitates sliding of the free end of the cover C.
[0017]
As shown in FIG. 2, an end cover plate 4 is pivotally connected to a free end of the cover body C at a position above the edge 3 so as to be vertically rotatable by a hinge 6. Of the building B is slidably mounted on the upper surface of the floor f2 of the building B so that the outer end thereof is substantially flush with the upper surface 8 of the cover body C. The upper end of the working space 2a is shielded by the end cover plate 4. One end of a tension spring 7 is connected to the lower surface of the end cover plate 4, and the other end of the tension spring 7 is connected to a lower portion of the free edge 3. The cover plate 4 is a biasing unit that biases the cover plate 4 in the downward rotation direction.
[0018]
The cover body C is formed in a shallow bottom container shape by a rectangular peripheral frame and a bottom plate, and a rigid base frame portion in which a plurality of main bars 12a and cross bars 12b are assembled in a lattice shape on the inner bottom portion. 13 are provided. The rigid base frame 13 has the same structure as that generally used for grating, and the rigid base frame 13 provides a predetermined strength capable of withstanding a load applied to the cover C. Further, the upper part of the rigid base frame 13 is filled with a floor finishing material 10 made of mortar m, tile t and the like.
[0019]
The connecting means 5 will be described with reference to FIGS.
A holding frame 14 is arranged on the side edge of the floor f1 of the building A so as to extend in a direction along the joint s. The holding frame 14 is formed in an L-shaped cross section with a horizontal receiving edge 14a and a vertical edge 14b. As shown in FIG. 4, a support 17 formed in the shape of a narrow flat plate is fixed to the upper surface of the horizontal receiving edge 14a. C is a supporting edge 18 for swingably supporting. The support 17 may be formed in a semicircular cross section, a triangular cross section, or the like, and its peripheral surface or upper ridge may be used as the support edge 18. When formed in this manner, the support edge 18 is in line contact with the lower surface of the cover C, and the support of the cover C when swinging can be further stabilized.
[0020]
Further, a plurality of connecting rods 19 made of bolts which are inserted from the lower surface side and are fixed to the horizontal receiving edge 14a are provided upright at predetermined intervals on the horizontal receiving edge 14a of the holding receiving frame 14. Each connecting rod 19 is loosely fitted into an insertion hole 21 formed in the reinforcing bottom plate 20 of the cover body C in a state where the lower surface of the cover body C is supported by the support edge 18 as shown in FIG. Is screwed with a spring receiving member 22 made of a nut. Further, a coil spring 23 is externally fitted to each connecting rod 19 in a compressed state so as to be interposed between the spring receiving member 22 and the reinforcing bottom plate 20 of the cover body C. The cover C is always urged downward. This allows one end of the cover C to swing with respect to the holding frame 14.
[0021]
The connecting means 5 constitutes holding means for holding one end of the cover body C immovably at least in the width direction of the joint s on the side edge of the floor f1 of the building A. In this holding state, the upper surface 8 of the cover body C is set to be substantially the same height as the upper surface of the floor f1 of the building A.
[0022]
The cover C has an opening 16 for mounting the coil spring 23 and the spring receiving member 22 at a position corresponding to the position above the connecting rod 19, and a cap 24 for shielding the opening 16 when not in use. Are detachably fitted.
[0023]
In such a configuration, the cover C normally covers the joint s at the steady position shown in FIG. Then, when the building A and the adjacent building B are relatively displaced relatively in the approaching direction during the earthquake, the free end of the cover C is moved over the horizontal receiving edge 1a of the sliding receiving frame 1 by an operating gap. When the cover body C slides horizontally within the range of 2a and follows the relative displacement, and further relatively displaces, as shown in FIG. 5, the cover C has one end held by the holding means (connecting means 5). As a fulcrum, the edge 3 of the free end moves up along the inclined receiving edge 1b of the sliding receiving frame 1 to escape from its relative displacement. At this time, since the end cover plate 4 pivotally connected to the edge 3 of the free end is urged in the downward rotation direction by the tension spring 7, the outer end of the end cover plate 4 is free. Since it is in a state of being inclined downward from the upper part of the end edge 3 and always in close contact with the upper surface of the floor f2 of the building B, the end cover plate 4 does not protrude into the hollow, so that Thus, it is possible to prevent a traffic obstruction caused by the state in which the end cover plate c (see FIG. 13B) projects hollow. Further, since the end cover plate 4 is urged in the downward rotation direction, the end cover plate 4 does not flutter due to the impact of the earthquake.
[0024]
Further, when the building A and the adjacent building B are relatively displaced in a direction in which the building A and the adjacent building B are separated from each other, as shown in FIG. 6, the cover C has its free end on the horizontal receiving edge 1a of the sliding receiving frame 1, It slides horizontally in the direction opposite to the inclined receiving edge 1b and follows its relative displacement.
[0025]
When the buildings A and B return to their normal positions after the earthquake, the free end of the cover C also returns to the normal position on the horizontal receiving edge 1a shown in FIG. The body C returns to a steady state.
[0026]
Further, when the building A and the adjacent building B are relatively displaced in the front-rear direction (the direction along the joint s), the free end of the cover body C moves on the horizontal receiving edge 1a of the sliding receiving frame 1 in the front-rear direction. To follow the relative displacement. Here, as shown in FIG. 7, the working space 2b is provided at the side end of the slide receiving frame 1 at the front and rear sides of the cover body C, so that the cover body C is formed by the working space 2b. Can be slid in the front-rear direction.
[0027]
Further, when the building A and the adjacent building B are vertically displaced relative to each other, the cover body C is connected to the building A with one end connected to the side edge of the floor f1 of the building A by the connecting means 5 as a fulcrum. It tilts with the vertical movement of A or the adjacent building B, and follows its relative displacement.
[0028]
FIGS. 8 to 12 show a second embodiment of the present invention. This embodiment is applied to a place where a rising portion 25 such as a wall is located near a free end of a cover C as shown in FIG. The structure of the holding means for holding one end of the cover C on the side edge of the floor f1 of the building A is changed. Other configurations are the same as those of the above-described first embodiment, and the same portions are denoted by the same reference numerals and overlapping description will be omitted.
[0029]
The holding means in this embodiment includes a slider 26 disposed at a lower portion of one end of the cover C and a slider 26 disposed on a side edge of the floor f1 of the building A to slide the slider 26 in a direction along the joint s. And a rail member 27 that supports it.
[0030]
As shown in FIG. 9, the slider 26 is formed by using a square pipe as a material and has a length substantially equal to the width of the cover C, and a fixing means such as welding or bolting is attached to the bottom plate of the cover C. Has been fixed through. On the other hand, the rail member 27 is provided with a horizontal receiving edge 27a and a vertical edge 27b, and at the front end of the horizontal receiving edge 27a is provided with a locking edge 27c having its front end bent upward. It is formed to have a length corresponding to the moving width in the front-rear direction (direction along the joint s). The locking rim 27c contacts the front edge of the slider 26 to prevent the slider 26 from falling off, and serves as guide means for guiding the slider 26 in the front-rear direction. Further, on the horizontal receiving edge 27a, a thin plate-like packing 28 having a smooth surface such as Teflon coating formed on the upper surface is attached, and the sliding surface of the packing 28 allows the slider 26 to slide easily. It is to be.
[0031]
As shown in FIG. 10 and the like, the rail member 27 is integrated with a flange 29 having an L-shaped cross section through a fixing means such as welding or the like, and the flange 29 is anchored at a side edge of the building A. 30 is fixed to the side wall of the floor f1 of the building A by fixing it to the nut 30. Here, the rail member 27 is attached at a height position where the upper surface 8 of the cover body C is substantially flush with the upper surface of the floor f1 of the building A while supporting the slider 26.
[0032]
In such a configuration, when the building A and the adjacent building B are relatively displaced in the approaching direction during the earthquake, the slider 26 supported by the rail member 27 can be tilted. As shown in FIG. 11, the cover body C is tilted about one end on the building A side as a fulcrum, and the edge 3 of the free end is displaced up along the inclined receiving edge 1b of the sliding receiving frame 1. , Can escape from the relative displacement. At this time, as described above, the end cover plate 4 pivotally connected to the edge 3 of the free end is inclined downward by the urging action of the tension spring 7, and the floor f2 of the building B The end cover plate 4 does not protrude into the air since the end cover plate 4 always slides in close contact with the upper surface of the cover.
[0033]
When the building A and the adjacent building B are relatively displaced in the front-rear direction (the direction along the joint s), the free end of the cover C is raised by the rising portion 25 of the building B as shown in FIG. Due to the position restriction, the end of the cover C on the building A side slides in the front-rear direction through the sliding action of the slider 26 supported by the rail member 27, and follows the relative displacement thereof. be able to.
[0034]
The floor joint covering device according to the present invention can be applied to general buildings other than the building having the base isolation structure whose lower part is supported by the base isolation device.
[0035]
【The invention's effect】
As described above, according to the present invention, the end cover plate is rotatably connected to the upper end of the free end of the cover body so as to be substantially flush with the upper surface of the cover body. Since the urging means for urging the plate in the downward rotation direction is provided, during an earthquake, the floors of the adjacent buildings are relatively displaced in the direction in which the floors approach each other, and the free end of the cover body is inclined by the sliding receiving frame body. When the end cover plate is displaced along the receiving edge, the end cover plate pivotally connected to the upper end of the free end is urged in the downward rotation direction by the urging means, so that the end cover plate is urged downward. Since the outer end of the cover always slides in close contact with the floor surface, it is possible to prevent a traffic obstruction caused by a state in which the end cover plate protrudes into the hollow as in the related art. Also, since the end cover plate is urged in the downward rotation direction, it does not flutter due to the impact of the earthquake, and furthermore, since the end cover plate is inclined downward from the upper end of the free end, There is no gap between the edge of the free end and the end cover plate.
[0036]
Further, the urging means for urging the end cover plate in the downward rotation direction is a tension spring having one end connected to the lower surface of the end cover plate and the other end connected to a lower portion of the free end. Accordingly, it is possible to obtain an urging means which has a simple structure, is easy to manufacture, is relatively inexpensive, has excellent durability, and generates a required urging action.
[0037]
Further, holding means for holding one end of the cover body immovably in the joint width direction includes a slider provided at a lower portion of one end of the cover body and a slider provided at a side edge of one of the floors so that the slider is used as the joint. If it is constituted by a rail member slidably supported along the direction, when the floors of adjacent buildings are relatively displaced in the front-rear direction (direction along the joint) during an earthquake, the slider supported by the rail member , One end of the cover body slides in the front-rear direction along the side edge of one floor to follow the relative displacement. This makes it possible to apply the floor joint covering device to a place where rising portions such as walls are formed on both front and rear sides of the free end of the cover body.
[Brief description of the drawings]
FIG. 1 is a vertical sectional side view showing a construction state of a floor joint covering device according to a first embodiment.
FIG. 2 is an enlarged view of an end cover plate 4 part.
FIG. 3 is an enlarged view of a connecting means 5 part.
FIG. 4 is a perspective view of a holding frame 14 constituting the connecting means 5;
FIG. 5 is an explanatory diagram showing the operation of the cover body C and the end cover plate 4 in a state where the building A and the building B are relatively displaced in a direction in which they approach each other.
FIG. 6 is an explanatory diagram showing an operation of a cover C in a state where a building A and a building B are relatively displaced in a direction in which the building A and the building B are separated from each other.
FIG. 7 is a perspective view showing a construction state of the floor joint covering device according to the first embodiment.
FIG. 8 is a vertical sectional side view showing a construction state of a floor joint covering device according to a second embodiment.
FIG. 9 is a perspective view of a slider 26 and a rail member 27 that constitute a holding unit.
FIG. 10 is an enlarged view of a holding unit.
FIG. 11 is an operation explanatory view in a state where a building A and a building B are relatively displaced in a direction in which they approach each other.
FIG. 12 is a perspective view showing a construction state of a floor joint covering device according to a second embodiment.
FIG. 13A is a schematic side sectional view of a conventional configuration, and FIG.
FIG. 14 is a schematic plan view of a conventional configuration showing, as an example, a state where there is a rising portion k near a free end of a cover plate C.
[Explanation of symbols]
Reference Signs List A Building B Building C Cover body f1, f2 Floor s Joint 1 Sliding receiving frame 1a Horizontal receiving edge 1b Inclined receiving edge 2a Working gap 3 Edge 4 End cover plate 5 Connecting means (holding means)
7 Tension spring (biasing means)
26 slider (holding means)
27 Rail member (holding means)

Claims (3)

One end of a cover body, which is inserted between joints between floors of adjacent buildings and covers the joint, is held at a side edge of one floor via a holding means so as to be immovable at least in the joint width direction. The other end of the end cover plate is rotatably connected to the upper end of the free end so as to be substantially flush with the upper surface of the cover body. While providing biasing means for biasing in the rotation direction,
On the side edge of the other floor, a sliding receiving frame provided with a horizontal receiving edge and an inclined receiving edge inclined upward from the outer end of the horizontal receiving edge is arranged,
On the horizontal receiving edge of the sliding receiving frame, the free end of the cover body is mounted, and the outer end of the end cover plate is mounted on the other floor, and the free end of the free end is mounted by the end cover plate. A joint cover device for a floor, wherein an upper part of a working gap generated between an edge and an inclined receiving edge of a sliding receiving frame is shielded. The biasing means for biasing the end cover plate in the downward rotation direction is a tension spring having one end connected to the lower surface of the end cover plate and the other end connected to the lower portion of the free end. The joint covering device for floors according to claim 1. A holding means for holding one end of the cover body, a slider provided at one end of the cover body, and a rail member provided at a side edge of one of the floors for supporting the slider slidably in a direction along the joint. 3. The floor joint covering device according to claim 1, wherein the floor joint covering device comprises:

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