JPH0213610Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an expansion joint device for covering gaps provided between structures.

Typical prior art uses a single lid body.
It covers the space between. With such prior art, it is difficult to improve the aesthetic appearance and to increase the strength of the lid so that it can withstand walking by people for a long period of time.

An object of the present invention is to provide an expansion joint device that increases the strength of the lid plate and improves its aesthetic appearance.

In the present invention, each of a pair of structures 1 having a distance S,
Base walls 21, 21' extend downward within the space S from the corner parts of the bases 20, 20' attached to the corners of 1', respectively.
Attaching portions 28, 2 facing the space S near the lower end
A lid plate 10 having a shape of 8' and provided with engagement ribs 12, 12' on the back surface.
covers the bases 20, 20' and the space S, and the engagement ribs 12, 12' of the cover plate 10 and the base 20,
In an expansion joint device that urges the cover plate 10 toward the lower side of the structure by a spring 40 that is engaged with the engagement parts 28 and 28' of the cover plate 20', the cover plate 10 is divided into two upper and lower layers. This expansion joint device is made of a plate, and the cover plate back plate 15b is made of an extruded aluminum material.

The basic configuration of the present invention will be explained with reference to FIG.

Between structures such as concrete buildings and roads, as shown in Figure 1, in order to prevent the effects of fluctuations such as vibrations and deformation occurring in one structure from affecting the other structure. A gap S of several tens of millimeters to more than 100 millimeters is provided. This gap S must be covered at all times to prevent rainwater from entering or dust from accumulating. However, if fluctuations occur, the gap should be adjusted to accommodate the changes, and the gap must be sufficiently covered. Must be able to cover. As shown in the figure, the device of this example is as follows:
A cover plate 10', a pair of bases 20, a water stop plate 30, a plurality of springs 40, and gaskets 6, 6', 7,
7'.

In the cross-sectional shape of the lid plate 10, downward gasket mounting grooves 11 and 11' are provided on both left and right edges in the longitudinal direction of the back side, and the gasket mounting grooves 11, 11' facing downward are provided at approximately the middle part of the back side (i.e., in the width direction of the lid plate 10, In other words, it is an elongated profile plate having a width sufficient to cover the width L in the width direction (between both ends in the left and right direction in FIG. 1). Spacing l between spring engaging ribs 12, 12'
Although it is not a necessary condition, it will be easier to install this device if it is slightly smaller than the width L. However, if the ribs 12, 12' are too close together and l is small, the attachment of the cover plate 10 will not be stable compared to if the ribs are wide. The locking ribs 12, 12' are provided with locking holes 13, 13' for locking one end of the spring. Since the lid plate 10 has an extremely simple shape as shown above, it can be manufactured easily and inexpensively using metal or synthetic resin by extrusion molding.

Since the pair of bases 20 and 20' are laterally symmetrical, they will now be described using the reference numerals shown for the base 20 on the right side of FIG. That is, as shown in the figure, in the cross-sectional shape under the installed state, the distance S to be covered is
A base wall 21 has a water stop plate mounting groove 22 on the lower side and a rib 23 for securing the other end of the spring on the upper side thereof, and is protruded in the opposite direction of the gap S at the top thereof, and has a sealing plate facing upward. It is an extruded metal product in which an upper wall 24 having a mounting groove 25 for mounting the upper wall 24 and a fixing wall 26 extending in the same direction below the upper wall 24 are integrally shaped. Note that reference numerals 28 indicate locking holes that are locking portions for locking springs provided at various locations on the locking rib 23. In addition, in the case of this figure, there are three arrow-shaped leg pieces 27 protruding downward from the fixed wall 26, which serve to firmly fix the base to the structure like an anchor. . The bases 20, 20' are respectively attached to the corners of the pair of structures 1, 1' which have a space S, and extend downward from the corner of the bases 20, 20' into the space S. Near the lower ends of the base walls 21, 21',
Attachment holes 28, 28' facing the gap S are formed.

The water stop plate 30 is wider than the distance L between the ends of the structures 1 and 1', and has fixing protrusions 3 on both longitudinal edges.
It is an elongated body made of water-impermeable and flexible material having a diameter of 2,32'.

A plurality of springs 40 are engaged at appropriate intervals between the engagement ribs of the lid plate 10 and the engagement ribs of the base 20, and are used to slidably connect the two. To facilitate this attachment,
As already mentioned, each rib is provided with the engaging holes 13, 13', 28, 28'. Note that the springs 41 and 42 in FIG.
1', 42-42', but if it is too long it will be difficult to install, so this is an example of a case where two short pieces are connected. In this case 42a and 42b, 41a
and 41b obliquely toward each other.

In addition, the parts required by the present device are the gaskets 6, 6' to be attached to the lid plate, and the gaskets 7, 7' to be attached to the mounting grooves of the base, but there is nothing particularly new about them.

In order to assemble the proposed device using these parts, first apply mortar 2 and 2' to the concrete notches at the upper left and right corners of the gap S, and then apply the mortar 2, 2' before completely solidifying the mortar. Then, fit the gaskets 7, 7' in advance, apply the bases 20, 20', and fix the bases by pushing the leg pieces 27, 27' into the mortar and solidifying it. let Next, bring the water stop plate 30 and attach the water stop plate 30 to both the bases 20, 2 by fitting the protrusions 32, 32' on both sides into the mounting grooves 22, 22' of the bases.
Install across 0'. Then, water stop plate 3
Since the width of the plate 0 is larger than the width L of the plate, the central portion 31 of the plate hangs down to form a gutter-like shape.

Once this is completed, a mortar finish layer 3 is applied to the upper surface of the mortar 2, 2' and the structures 1, 1', and the space between the finish layer 3, 3' and the upper walls 25, 25' of the base is maintained. Apply the necessary caulking 4 and 4' according to the law.
Next, the gaskets 6 and 6' are fitted into the gasket attachment grooves of the cover plate 10, respectively, and the other ends 41b and 42b of the springs are engaged with the attachment holes 28 and 28' of the bases 20 and 20', respectively. The ends 41a and 42a are respectively connected to the locking holes 1 on the cover plate side.
3 and 13', the assembly of the device is now completed. Under this condition, the packings 6, 6' are in contact with the upper surfaces of the mortar finishing layers 3, 3', the packings 7, 7' are in contact with the back surface of the cover plate, and the gap S covered by the cover plate 10 is in contact with the packings 6, 6'. It is almost completely cut off from the outside world. If rainwater should come in, it will be collected on a gutter-shaped water stop plate and led out to a drainage channel (not shown). Further, since the cover plate is connected to the base via the spring, even if the structure changes slightly, the cover plate 10 will not be unable to cover the gap S.

FIG. 2 is a sectional view showing a part of an embodiment of the present invention. As shown in FIG. 2, the cover plate 10 may be made of two pieces, a cover plate front plate 15a and a cover plate back plate 15b, and may be integrated with the connecting screws 5. in this case,
It is preferable to use a rectangular piece of extruded aluminum as the cover plate back plate 15b, and to serve the role of reinforcing the cover plate back plate 15b.

The cover plate 15 is laminated with a cover plate front plate 15a made of synthetic resin or the like and a cover plate back plate 15b made of an extruded aluminum material. It will be fixed. Gasket mounting grooves 11 and 11' are provided in the lower portions of both ends of the cover plate surface plate 15a. Lid plate back plate 1
Spring engaging ribs 12, 12' are provided on the opposite side of the cover plate 5b from the front plate 15a and facing the gap S. Packings 7, 7' are cover plate back plate 15
b to prevent rainwater from entering.

Since the lid plate 15 has a two-layer structure of the lid plate front plate 15a and the lid plate back plate 15b, the lid plate front plate 15a plays the role of a decorative plate, and the lid plate back plate 15b plays the role of a reinforcing material. Can be done. That is, since the cover plate front plate 15a can be formed of synthetic resin or the like, it is easy to apply makeup to the parts that are visible to the public. Since the lid back plate 15b is an extruded aluminum material, it is easy to provide the required strength.

As described above, according to the present invention, since the lid plate has a two-layer structure, the lid plate has the necessary strength and can easily be decorated.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing the basic structure of the present invention, and FIG. 2 is a cross-sectional view showing a part of an embodiment of the present invention. 1, 1' are the structure, 2, 2' are the mortar layer,
3, 3' are mortar finishing layers, 4, 4' are caulking, 6, 7 are packing, 10 are lid plates, 11, 1
1' is a gasket mounting groove, 12, 12' are spring engagement ribs, 13, 13' are engagement holes, 15a is a cover plate front plate, 15b is a cover plate back plate, 20, 20' are a base,
21, 21' are base walls, 22 is a water stop plate mounting groove, 23,
23' is a spring engaging rib, 24, 24' is an upper wall, 25, 25' is a gasket mounting groove, 26, 2
6' is a fixed wall, 27 and 27' are leg pieces, 30 is a water stop plate, and 32 and 32' are fixed protrusions.

Claims (1)

[Claims for Utility Model Registration] From the corners of the bases 20 and 20' attached to the corners of the pair of structures 1 and 1' having a space S, respectively.
In the vicinity of the lower ends of the base walls 21, 21' extending downward within the space S, engaging portions 28, 28' facing the space S are formed, and on the back side, engagement ribs 12, 12' are provided. Board 10
covers the bases 20, 20' and the space S, and the engagement ribs 12, 12' of the cover plate 10 and the base 20,
In an expansion joint device that urges the cover plate 10 toward the lower side of the structure by a spring 40 engaged with the engagement parts 28, 28' of the cover plate 10, the cover plate 10 is divided into two upper and lower layers. An expansion joint device characterized in that the cover plate back plate 15b is made of an extruded aluminum material.