JPH0230484Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates primarily to a road joint device used to form a road surface on an elevated portion of a highway.

(Conventional technology) Floorboards expand and contract due to seasonal temperature changes. For this reason, when it is laid, it is laid with the expansion gap between each floor plate, and an elastic joint is applied to fill the expansion gap. The length of this joint tool is about 1.8 m for convenience of transportation, etc., and a plurality of these joint tools are applied along the stretch interval and used by gluing them together with an adhesive.

However, in this case, when the joint is compressed in the width direction due to the expansion of the floor plate, the
As shown in Figure 0, the end portions 1d and 1d bulge in the longitudinal direction, and the sealing agent applied to the connection portion, which also serves as an adhesive, leaks out, causing the inconvenience that the sealing effect of the connection portion is lost. .

(Problems to be Solved by the Invention) The object of the present invention is to obtain a joint device for a floor plate that is free from such inconveniences.

(Means for Solving the Problems) The present invention connects a plurality of long elastic joints in the length direction between the ends of the floorboards laid with a gap between them. In the case where the connection part is filled with a sealant that also serves as an adhesive,
Recesses facing each other are formed on each end face of one end face and the other end face facing each other in the longitudinal direction of the joint, and a gap is provided between both recesses.

(Example) An example of implementing the present invention will be explained with reference to a drawing.
is a long elastic joint that is fitted into an L-shaped notch a along the upper surface of each end of the floor plates A, A and is provided so as to cover the upper surface of the extension interval; The elastic joint 1 is provided with reinforcing steel plates 1a, 1a at the lower portions of both sides in the width direction, and has a steel plate 1b embedded in the upper center thereof. This is provided with grooves 1c along the longitudinal direction for releasing the force when the beds A and A are compressed during expansion.

A plurality of such joints 1 are applied along the stretch interval, and a sealant that also serves as an adhesive is applied to the floor plate A, the joints 1, and the joints 1 to prevent rainwater from leaking from the joints of each joint 1. Seal to prevent leakage. The configuration up to now is not particularly different from what is conventionally known.

In the present invention, a slightly depressed recess 1e is provided at a corresponding position on the end face 1d of the joint 1.To explain this in detail, the recess 1e is formed on the steel plate 1 described above.
A rectangular recess 1e is formed in the part where the ends of the steel plate 1b a, 1a and the steel plate 1b are most likely to be displaced on both sides facing each other.
and recesses 1e of the same shape located on both sides thereof.

In this case, when the joint 1 is pushed in the width direction by the elongation of the floorboard A, and as a result, when the joint 1 tries to extend to the longitudinal end in the direction perpendicular to this, the recess The bulge can be absorbed by the gap formed between the depressions 1e, 1e. Moreover, the sealing agent applied between the joints 1 can be stored in the recesses 1e, and the sealing effect can be maintained for a long period of time.

In addition, a protrusion 1f extending along the width direction of the joint tool 1 is fitted to the lower side of one end of the joint tool 1, and a protrusion 1g provided at the end of another joint tool 1 connected thereto is fitted to the other end. The notch 1g is provided to make the connection more effective by their engagement.

In this way, according to the present invention, a plurality of long elastic joints are applied along the spacing between the floorboards that are laid at intervals, and each of these joints is attached to the end surface of the floorboards, which also serves as an adhesive. In the type in which a sealant is filled with a sealant, mutually opposing recesses are formed on each end face of one and the other of the joints in the longitudinal direction of the joint. Since a gap is provided between the recesses, it is possible to absorb the bulge in the longitudinal direction of the joint when the floor plate is expanded, and the gap between the recesses can be maintained even when compressed. The sealing agent can be stored effectively, thereby maintaining the sealing effect of the joint for a long period of time, and the recess may be relatively shallow. Also, there is an effect that the strength of the end portion does not deteriorate.

[Brief explanation of drawings]

Fig. 1 is a plan view of one example of implementing the present invention, Fig. 2 is an end view of one side thereof, Fig. 3 is an end view of the other side, and Fig. 4 is an end view of one side thereof.
The figure is a sectional view taken along the line - - of Fig. 1, Fig. 5 is a sectional view taken along the line - - of Fig. 2, Fig. 6 is a sectional view taken along the - line of Fig. 3, and Fig. 7 is a plan view of the state of use. FIG. 8 is an enlarged sectional view taken along the line ``-'', FIG. 9 is a plan view of a conventional connection section, and FIG. 10 is a sectional side view thereof. A... Floor board, 1... Joint tool, 1d... End surface, 1
e...concave.

Claims (1)

[Scope of utility model registration request] A plurality of long elastic joints are connected in the length direction between the ends of the floorboards that are laid at intervals, and a sealant that also serves as an adhesive is applied to the joints. A road joint in which mutually opposing concave depressions are formed on each end face of one and the other opposing longitudinal sides of the joint, and a gap is provided between both concave depressions. Device.