JPS6324745Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention allows one end side of a gangplank installed in a passageway spanning adjacent buildings in the passageway direction to slide against a guide groove in a direction perpendicular to the passageway attached to the end of one passageway. This invention relates to an expansion joint in which the other end of the gangplank in the passage direction is slidably placed in the passage direction with respect to the other passage while being freely engaged and connected.

In a multi-story building with an earthquake-resistant design that is independent and of an appropriate scale, an expansion joint is constructed across the passageway of the adjacent building to allow evacuation walking while allowing relative horizontal movement of the adjacent building in the event of an earthquake. I have to.

However, as mentioned above, conventional expansion joints only allow the relative movement of adjacent buildings in the two-dimensional horizontal direction, and do not take into account relative movement in the vertical direction.
Therefore, due to the relative vertical movement of adjacent buildings due to vertical shaking or uneven ground subsidence during an earthquake, the 6th
As shown in Figure A, the end edge of the transition plate 7 on the other end side in the passage direction rises up from the other passage 8, or conversely, as shown in Figure B, the edge of the transition plate 7 on the other side of the passage It is bent and deformed by the uplift of the
There is a difference in level between the edge of the gangplank and the passageway 8, which may cause tripping during emergency evacuation, which is a drawback in terms of safety.

The present invention was developed in view of the above-mentioned circumstances, and aims to improve safety through extremely simple modification.

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a guide structure provided at the end of one passageway 2 in an adjacent building, in which a mounting plate 4 with a non-slip member 3 connected thereto is attached to the passageway 2 by embedding anchor reinforcements 5 welded thereto; A crank-shaped guide rail 6 is connected to the mounting plate 4 by a bolt a attached to the mounting plate 4 in advance and a nut b screwed thereto. A guide groove A having a slit opening in the direction X perpendicular to the passage is formed in the groove.

Reference numeral 7 denotes a bridge plate extending over the entire width of the passage, one end of which in the passage direction Y is latched and connected to the guide structure 1, and the other end thereof is placed on the other passage 8 so as to be slidable in the passage direction Y.

To lock and connect one end side of the spanning plate 7 to the guide structure 1, one end side of the spanning plate 7 is bent into an L shape, and the bent vertical surface portion 7a is rotated around the axis in the passage direction Y. Move the movable roller 9 in the direction perpendicular to the path
At the same time as the guide rail 6 is connected to the mounting plate 4, the roller 9
The anti-slip member 3 is engaged with the guide groove A.
The vertical wall 10 of the other passage 8 and the upright part 12 of the handrail 11 connect the passage in the direction perpendicular to the passage
The gangplank 7, whose movement is restricted in the passageway 2, is slid along the guide groove A in the direction X orthogonal to the passageway 2 with respect to the one passageway 2 by relative movement in the direction X orthogonal to the passageway of the adjacent building. .

The mounting portion 7b of the connecting plate 7 relative to the other passage 8 is rotated around the axis P in the direction X perpendicular to the passage via a hinge 14 provided at a position inside the end of the other passage 8, as shown in the figure The mounting portion 7 is configured to be bendable in the vertical direction Z, and as the adjacent passages 2 and 8 move vertically relative to each other, as shown in FIG.
The end edge of b is brought into contact with the upper surface of the other passage 8 by its own weight biasing force.

Reference numeral 13 denotes a member that prevents the spanning board 7 from springing out, and the vertical wall side portion of the spanning board 7 is bent upward.
A crank-shaped prevention member 13 is attached to the upper edge of the bent portion 7c at appropriate intervals to prevent the mounting portion 7b from being raised above a certain height due to strong winds or the like. . 15 is an elastic body such as a rubber plate.

In addition, a spring for biasing the mounting portion 7b downward toward the passage surface side may be provided at the hinge 14 portion so that its edge comes into contact with the passage surface; in this case, the prevention member 13 It is possible to omit it.

In addition, as shown in FIG.
A hinge 16 is provided at the bent part of the adjacent passage 2,
8, the mounting portion 7b is moved along the passage 8.
It may also be configured so that the surface contacts the surface.

In the present invention, the corridors are exemplified as the passages 2 and 8, but the passages 2 and 8 may also be balconies separated by evacuation boards.

As described in detail above, according to the present invention, one end side in the passage direction of a gangplank installed in a passageway spanning adjacent buildings is slid against a guide groove provided at the end of one passageway in a direction perpendicular to the passageway. In the expansion joint, the other end of the gangplank in the passage direction is placed so as to be slidable in the passage direction with respect to the other passage. Since the section is configured to be able to bend vertically via a hinge provided inside the end of the other passage, the adjacent building can be bent in the vertical direction Z in addition to the horizontal two-dimensional directions X and Y. Even if there is a relative movement in the direction of
By allowing the relative movement of Z, it is now possible to safely perform evacuation walking in the event of an earthquake.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall plan view, FIG. 2 is an enlarged cross-sectional view taken along the - line in FIG. 1, FIG. 3 is an enlarged cross-sectional view taken along the - line in FIG. ，
B is an explanatory view showing how the attitude of the gangplank changes when an adjacent building is moved up and down, FIG. 5 is a sectional view of the deformed structure, and FIGS. 6A and 6B are explanatory views of the conventional structure. 2, 8...Passway, 7...Gang plate, 7b...Placement part, A...Guide groove, X...Passway orthogonal direction, Y
... Passage direction, P... Axis in the direction perpendicular to the passage.

Claims (1)

[Scope of utility model registration request] One end in the passage direction of a gangplank installed in a passageway spanning an adjacent building is slidably connected to a guide groove in a direction perpendicular to the passage provided at the end of one passageway, and the passageway of the gangplank is An expansion joint whose other end side is slidably placed in the direction of the other passageway, and the mounting portion of the gangplank relative to the other passageway is placed at the end of the other passageway. An expansion joint characterized by being configured so that it can be freely bent in the vertical direction via a hinge provided at an inner position.