JP3753714B2 - Movement adjustment mechanism of the summing part in the expansion joint and expansion joint - Google Patents

Description

  The present invention relates to an expansion joint having a simple structure and a large clearance, and the expansion joint can be moved following a large temporary deformation such as an earthquake. The cover plate has a movable adjustment mechanism that can cope with a small amount of clearance fluctuations after an earthquake or due to secular change.

  An expansion joint for construction is a dividing line provided to divide the transmission of stress generated by fluctuation factors such as external force applied to a building, and prevents a clash between left and right buildings built adjacent to each other. This is a joint member that closes the clearance C (gap) provided to the wall with a decorative cover that can move following the shaking movement of the building, and connects the left and right buildings so that they can be used together.

  Therefore, the expansion joint has different names depending on the attachment site, such as for the outer wall, for the floor, for the ceiling, for the roof, and for the inner wall, and its shape varies depending on the attachment site, In summary, it is composed of a decorative edge material and a decorative cover plate that follow changes in the clearance C due to an earthquake or the like.

  In order to support the decorative cover plate, the conventional decorative cover plate attached to the expansion joint part has a relatively small assumption of the change in clearance C due to temporary deformation such as an earthquake or permanent deformation such as non-uniform subsidence. There are many things of the structure fitted and mounted between the decorative margin material of the both ends provided.

  Both ends of the decorative cover plate of this conventional type expansion joint are sandwiched by the decorative margin material at both ends of the decorative cover plate, and the extension portion of the decorative cover plate is stored in the decorative margin material so that the clearance C is extended. In addition, a configuration having clearance gaps in the decorative edge material is provided so that the clearance C can be contracted, and the clearance C can be temporarily changed between the decorative edge materials due to an earthquake or the like. Following movement is possible.

  In recent years, however, the size and height of buildings have increased, and many buildings with seismic isolation structures have been built, so the clearance C between buildings has been about 50mm to 300mm. From 800mm to 1600mm, expansion joints for base-isolated buildings that can follow the movable amount of ± 800mm have been widely used for temporary deformation such as earthquakes.

  In the above-mentioned tendency, especially in the case of expansion joints for seismic isolation with a large clearance C, as in the conventional expansion joints, both ends of the decorative cover plate are inserted only into the decorative edge material, and the extended portion Is stored redundantly, and a configuration with clearance gaps is provided in the decorative edge material so that it can cope with shrinkage, and only the change in the clearance C due to an earthquake or the like is followed between the decorative edge materials With this configuration, it is no longer possible to move following a large temporary deformation in an earthquake or the like, and it is required to implement an expansion joint with a large amount of movement with a simple mechanism.

  Also, in the case of floor expansion joints, it is not an unstable decorative cover plate with a thin plate shape that feels like a step on the floor. Similarly to the floor surface, a decorative cover plate laid with stones or tiles is required. Naturally, the decorative cover plate is thick and heavy.

  Therefore, it is possible to move the decorative cover plate smoothly to follow the shaking against the temporary deformation such as an earthquake and the expansion joint of the safety structure that securely holds the heavy weight decorative cover plate, and after the earthquake. There is also a need for an expansion joint with a function that can be adjusted by the movable adjustment mechanism of the summoning section, even for small variations in clearance C due to aging.

  The problem to be solved by the present invention will be described by taking a floor expansion joint covering a wide clearance C as an example.

  In the present invention, an expansion joint is provided in the clearance C provided between the floors of buildings A and B. The expansion joint can smoothly follow and move with a simple mechanism against temporary deformation such as an earthquake, The objective is to obtain an expansion joint that can be adjusted at the summing part of the decorative margin material and the decorative cover plate even after a small amount of clearance C changes due to secular changes such as after the earthquake and uneven settlement.

Thus, the present invention has a decorative edge material provided on each of the floor surface edges to cover the clearance C set between the buildings A and B facing each other,
A decorative cover plate that covers the clearance C carried or placed on the decorative margin material is provided,
The summing part of the decorative rim material and the decorative cover plate has an oblique cross-sectional shape and is in contact with or opposed to each other,
When the clearance C temporarily contracts due to an earthquake or the like, the summing portion of the decorative cover plate slant cross-sectional shape portion slides in contact with the slant cross-sectional shape portion of the decorative edge material, and pushes the decorative cover plate upward, resulting in an earthquake or the like An expansion joint that can follow sudden temporary deformation is provided.

In addition, the present invention has a decorative edge material provided on each edge of the floor surface to cover the clearance C set between the buildings A and B facing each other,
A decorative cover plate that covers the clearance C carried or placed on the decorative edge material is provided,
The summing part of the decorative margin material and the decorative cover plate are in contact with each other having an oblique cross-sectional shape,
When the clearance C temporarily contracts due to an earthquake or the like, the summing portion of the oblique cross-sectional shape portion of the decorative cover plate slides in contact with the oblique cross-sectional shape portion of the decorative edge material, and pushes the decorative cover plate upward, causing an earthquake, etc. In expansion joints that can follow sudden temporary deformation due to
The oblique cross-sectional shape portion of the decorative cover plate is a divided part with the decorative cover plate main body, and the oblique cross-sectional shape member is attached to the decorative cover plate main body via an elastic member such as a spring so as to be extendable and contractable. In addition, a small amount of clearance C fluctuation after an earthquake or due to secular change is movable and adjusted by expansion and contraction of the spring or the like.

  In the present invention, an expansion joint is provided in the clearance C provided between the floors A and B of the building, and the expansion joint is smooth with a simple mechanism against temporary deformation such as an earthquake. It is possible to obtain an expansion joint that can be adjusted at the summing part of the decorative margin material and the decorative cover plate even after a small amount of change in the clearance C due to secular changes such as uneven subsidence after an earthquake. did it.

  Thus, the present invention has provided an expansion joint summing portion movable adjustment mechanism that can be used for an expansion joint for seismic isolation having a large clearance C with a simple configuration.

  The present invention is not a thin plate-like unstable makeup cover plate that feels like a floor, especially in floor expansion joints. Similarly to other floors, even if a heavy-weight decorative cover plate laid with stone or tiles is used, an expansion joint with a safety structure that securely holds the decorative cover plate and temporary earthquakes, etc. A function that can move the decorative cover plate smoothly against deformation, and can follow the shaking, and can be adjusted with the movable adjustment mechanism of the summoning part even after an earthquake or a small amount of clearance C fluctuation due to secular change. We were able to provide the expansion joints we had.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.
1 to 6 show the expansion joint of the present invention, and the summing portion of the decorative material of the expansion joint and the decorative cover plate. FIG. 1 is a cross-sectional view showing the expansion joint of the present invention. 3 and FIG. 3 are sectional views showing an embodiment of the movable adjustment mechanism of the summing unit, and FIGS. 4 to 6 are operation explanatory views of the embodiment shown in FIGS.

  In FIG. 1, floor surfaces 1 and 2 between buildings A and B facing each other have a clearance C, and decorative edge materials 3 and 4 are provided to face each other across the clearance C. A decorative cover plate 5 is mounted on the upper portions of the decorative margin materials 3 and 4 to form an expansion joint 6. The cross-sectional shape portion of the decorative edge material 3 has an oblique shape portion 7, and the oblique shape portion 8 of the makeup cover plate 5 is opposed to the oblique shape portion 7 with a slight gap. (State of FIG. 1), it is carried in a contact state.

  The decorative cover plate 5 forms a mold 9 made of steel, stainless steel or the like, and a floor material 10 made of stone, tile, or the like is laid as a floor decorative material via a mortar.

  Thus, in the present embodiment, the other end of the decorative cover plate 5 is rotatably held via a spring hinge 11 fixed to the decorative edge material 4. A floor expansion joint 6 is formed on the distal end side of the decorative cover plate 5 while being always pressed against the flat edge 12 of the decorative edge material 3.

  The spring hinge 11 is provided with a plurality of appropriate pitches in the longitudinal direction of the decorative cover plate 5, and by adopting this configuration, the expansion joint 6 of the present invention is It can be used not only for flooring but also for outer walls and ceilings. Moreover, 13 has shown the water stop auxiliary sheet | seat which consists of a vinyl chloride sheet | seat, and it is also possible to provide a fireproof zone in the lower part of this water stop auxiliary sheet | seat 13 as needed.

  Thus, FIG. 1 shows that when the preset clearance C is temporarily changed due to an earthquake or the like and contracts to the clearance C1, the oblique shape portion 8 of the decorative cover plate 5 becomes the oblique shape portion of the decorative edge portion 3. 7, after sliding along the slanted shape portion 7 and being pushed up, the decorative cover plate 5 itself moves as indicated by the imaginary line 5 ′, so that the decorative cover plate 5 is free on one side. It can move following large fluctuations and does not damage the decorative cover plate 5 itself or the building.

  FIG. 2 is a view showing the above-mentioned expansion joint, in which a movable adjustment mechanism for the summoning portion used for the expansion joint of the present invention is added. A and B in FIG. C is a preset clearance provided between the buildings A and B, 1 and 2 are floor surfaces, 3 and 4 are decorative edges, 5 is a decorative cover plate, and 7 is provided on the decorative edges 3. Similarly, an oblique shape portion, 8 is an oblique shape portion provided on the decorative cover plate 5, 9 is a formwork forming the decorative cover plate, 10 is a floor material made of stone or tile, 11 is a spring hinge, and 12 is A flat edge portion 13 provided on the decorative edge material 3 is a water stop auxiliary sheet.

  In FIG. 2, the decorative cover plate 5 is divided into a decorative cover plate main body 14 and an elastic member 15 having the oblique shape portion 8, and the decorative cover plate main body 14 and the elastic member 15 are fitted and slidable portions 16. And are integrated via a coil spring 17.

  The decorative cover plate 5 of the present embodiment, which includes the decorative cover plate main body 14 and the elastic member 15, can be arbitrarily changed in width by a coil spring 17. The slanted shape portions 8 of 5 are brought into contact with the slanted shape portion 7 of the decorative edge material 3 and are fitted to the summing portions 18 without any gaps, just as if fitted between the decorative edge materials 3.

    In the first embodiment, the other end of the decorative cover plate main body 14 is rotatably attached to the decorative edge material 4 via the spring hinge 11 as in FIG. The flat edge 12 of the decorative edge material 3 is always pressed by the spring hinge 11.

  Note that the decorative surface of the elastic member 15 is provided with a non-slip 19 by using a checker plate.

  Thus, the first embodiment described in FIG. 2 can be easily incorporated into the expansion joint described in FIG. 1, and the first embodiment can be moved following a large temporary deformation such as an earthquake, The expansion joint can be adjusted to accommodate changes in the clearance C after an earthquake, or can be permanently adjusted due to aging such as non-uniform subsidence. Yes.

  In the embodiment shown in FIG. 3, a floor expansion joint 6 that is symmetrical to the left and right is formed as an example, and a decorative edge material 3 having the same shape and having diagonally shaped portions 7 on the left and right is provided between the floor surfaces 1 and 2. A configuration is provided in which the decorative cover plate 5 is mounted between the clearances C interposed between the floor surfaces 1 and 2.

  3, the same reference numerals as those in FIGS. 1 and 2 indicate the same components, 1 and 2 are floor surfaces, 3 and 4 are decorative edge materials, 5 is a decorative cover plate, and 7 is the decorative edge material 3. An oblique shape portion 8 provided at both ends is an oblique shape portion of the decorative cover plate 5 in contact with the oblique shape portion 7.

  Thus, the decorative cover plate 5 is divided into a decorative cover plate main body 14 and an elastic member 15 having the oblique shape portion 8, and the decorative cover plate main body 14 and the elastic member 15 are formed on the fitting sliding portion 16. Each is fitted and integrated through a coil spring 17.

  The decorative cover plate 5 according to the second embodiment, which includes the decorative cover plate main body 14 and the elastic member 15, can be arbitrarily changed in width by a coil spring 17. The oblique shape portion 8 of the cover plate main body 14 is attached to each summing portion 18 without a gap so as to be in contact with the oblique shape portion 7 of the decorative edge material and just fitted between the decorative edge materials 3 and 4.

  In the case of the floor cover, the decorative cover plate 5 is considerably heavy because it has a structure in which stones and tiles are laid down. However, in the embodiment of the present invention, the decorative cover plate is always attached by a tension coil spring (not shown) or the like. It has a structure that pulls downward.

  Thus, in the second embodiment of the present invention, when there is a temporary large clearance C contraction such as an earthquake, the decorative cover plate main body 14 has the slanted shape portions 8 of the elastic members 15 provided at both ends thereof. The slanted shape portion 7 is slid and lifted to the upper portion, and can move following a temporary large deformation such as an earthquake.

  The expansion and contraction member 15 can be moved and adjusted by the action of the coil spring 17 even in the adjustment corresponding to the change in the clearance C after the earthquake and the permanent deformation due to aging such as the non-uniform subsidence.

Accordingly, FIGS. 4 to 6 illustrate the operation of the movable adjustment of the first and second embodiments, and FIG. 4 is attached with the clearance C set in the enlarged main portion sectional views of FIGS. 2 and 3. FIG. 5 shows a state when the clearance C contracts with C1.
FIG. 6 shows a state in which the clearance is expanded to C2, contrary to FIG. 5, and it can be seen that in the embodiment of the present invention, the clearance C can be expanded as well as contracted.

Thus, the present invention has decorative edge materials 3 and 4 respectively provided on the edge of the floor to cover the clearance C set between the buildings A and B facing each other.
A decorative cover plate 5 is provided to cover the clearance C carried on or placed on the decorative edge materials 3 and 4;
The summing portion 18 of the decorative margin material 3 and the decorative cover plate 5 are in contact with each other with diagonal cross-sectional shape portions 7 and 8;
When the clearance C temporarily contracts greatly due to an earthquake or the like, the summing portion of the oblique cross-sectional shape portion 8 of the decorative cover plate 5 slides in contact with the oblique cross-sectional shape portion 7 of the decorative edge material 3, and the decorative cover plate 5 can be pushed up to follow a sudden temporary deformation due to an earthquake, etc.
The decorative cover plate 5 can be prevented from being damaged by making the width between the decorative edge members variable via a coil spring 17 that can be expanded and contracted against small fluctuations in the clearance C after the earthquake or due to secular change. Configured to be able to.

Also, the present invention. In order to cover the clearance C set between the buildings A and B facing each other, it has a decorative edge material 3 provided on each edge of the floor surface,
A decorative cover plate 5 is provided to cover the clearance C carried or placed between the decorative edge materials 3;
The summing portions of the decorative edge material 3 and the decorative cover plate 5 are in contact with each other with diagonal cross-sectional shape portions 7 and 8;
When the clearance C temporarily contracts due to an earthquake or the like, the summing portion of the oblique cross-sectional shape portion 8 of the decorative cover plate 5 abuts against the oblique cross-sectional shape portion 7 of the decorative edge material 3 and slides. In the expansion joint that can follow the sudden temporary deformation caused by earthquakes, etc.
The oblique cross-sectional shape portion 8 of the decorative cover plate 5 forms a divided part with the decorative cover plate main body 14, and the oblique cross-sectional shape member 8 expands and contracts with respect to the decorative cover plate main body 14 via an elastic member 15 such as a coil spring 17. It was attached freely, and it was possible to provide a configuration that responds to expansion and contraction of the spring 17 in response to a small amount of clearance C variation after an earthquake or due to secular change.

It is sectional drawing explaining this invention. It is a section explanatory view showing Example 1 of the present invention. It is sectional explanatory drawing which shows Example 2 of this invention. It is the elements on larger scale of FIG.2 and FIG.3. It is operation | movement explanatory drawing of FIG. It is operation | movement explanatory drawing of FIG.

Explanation of symbols

A building
B Building
C Clearance of expansion joint 1 Floor 2 Floor 3 Cosmetic margin material 4 Cosmetic margin material 5 Cosmetic cover plate 6 Expansion joint 7 Diagonal shape of cosmetic margin material
8 Diagonal shape part of decorative cover plate 9 Formwork 10 Floor material 11 Spring hinge 12 Flat edge 13 Water stop auxiliary sheet 14 Cosmetic cover plate main body 15 Stretching member 16 Fitting sliding part 17 Coil spring 18 Summing part 19 Sliding Stop

Claims (2)

In order to cover the clearance C set between the buildings A and B facing each other, it has a decorative edge material provided on each edge of the floor surface,
Providing a decorative cover plate covering the clearance C carried or placed on the decorative edge material;
The movable summing portions of the decorative margin material and the decorative cover plate have an oblique cross-sectional shape with each other and are in contact with or opposed to each other,
When the clearance C contracts temporarily due to an earthquake or the like, the summing portion of the oblique cross-sectional shape portion of the decorative cover plate abuts against the oblique cross-sectional shape portion of the decorative edge material and slides up to push the decorative cover plate upward, an earthquake, etc. Can follow the sudden temporary deformation caused by
For a small amount of clearance C after the earthquake or due to secular change, a decorative cover plate tip portion configured to be extendable via an elastic spring is interposed, and the tip portion of the decorative cover plate is expanded or contracted to An expansion joint characterized in that the decorative cover plate is configured to be variable in width to prevent the decorative cover plate from being damaged. In order to cover the clearance C set between the buildings A and B facing each other, it has a decorative edge material provided on each edge of the floor surface,
Providing a decorative cover that covers the clearance C carried or placed on the decorative edge material;
The summing parts of the decorative margin material and the decorative cover plate are in contact with each other with an oblique cross-sectional shape,
When the clearance C temporarily contracts due to an earthquake or the like, the summing portion of the oblique cross-sectional shape portion of the decorative cover plate slides in contact with the oblique cross-sectional shape portion of the decorative edge material and pushes the decorative cover plate upward to cause an earthquake or the like In expansion joints that can follow sudden temporary deformation,
The decorative cover plate has an oblique cross-sectional shape part divided from the decorative cover plate main body, and the oblique cross-sectional shape member is attached to the decorative cover plate main body via an elastic member such as a spring so as to be elastic. A movable adjustment mechanism of the summing part in the expansion joint, characterized by responding to a small change in the clearance C due to the secular change after the earthquake by expansion and contraction of the spring or the like.

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