JPH01158111U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a sectional view of the concrete sleeper manufacturing equipment, Figure 2 is a perspective view showing a part of the concrete sleeper formwork and rail mounting hardware, and Figure 3 is a cross-sectional plan view showing the main parts of the fastening device. be. FIG. 4 is a sectional view of the concrete sleeper, FIG. 5 is a plan view of the concrete sleeper, and FIG. 6 is a cross-sectional plan view showing the main parts of a fastening device of another embodiment. FIG. 7 is a sectional view of a conventional concrete sleeper manufacturing apparatus. 2... Formwork for concrete sleepers, 3... Bottom plate portion, 6... Opening, 9... Rail mounting bracket, 14,
24... Engaging member, 15, 23... Cylindrical member, 16
, 25...Spring, 18, 26...Biasing engagement member, b...Rail presser insertion hole, c, e...Engaging portion.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A rail mounting bracket is installed in the opening formed in the bottom plate of the formwork for concrete sleepers, and a part of the rail mounting bracket is brought into contact with the upper surface of the bottom plate, and the rail A fastening device for a rail mounting bracket for fastening the rail mounting bracket to the formwork by inserting the presser into the holding tool insertion hole in a state in which it protrudes below the bottom plate portion, the rail mounting bracket being fastened to the formwork, the rail mounting bracket being fastened to the formwork; An engaging member having an engaging portion to be engaged, a cylindrical member into which the engaging member is slidably fitted in a state in which the engaging member is prevented from coming off, and a spring that urges the engaging portion to protrude from an end of the cylindrical member. two biasing engaging members consisting of are disposed below the bottom plate portion so as to face each other on both sides of the opening with the engaging portion facing the opening, and the biasing force of the spring is The rail mounting bracket is configured to be able to be inserted into and removed from the opening, and when the rail mounting bracket is inserted into the opening, the engaging portion is inserted into the insertion hole under elastic deformation of the spring. A fastening device for a rail mounting bracket to a formwork for a concrete sleeper, characterized in that the rail mounting bracket is engaged with both ends of the rail mounting bracket and is fastened to the formwork in a state in which the rail mounting bracket is biased downward. (2) Place the rail mounting bracket into the opening formed in the bottom plate of the formwork for concrete sleepers, and place a part of the rail mounting bracket in contact with the top surface of the bottom plate, and insert the rail presser insertion hole into the bottom plate. A fastening device for a rail mounting bracket for fastening the rail mounting bracket to the formwork by inserting the rail mounting bracket in a state in which it protrudes further downward than the cylindrical member, and in which two engaging members are placed on both sides of the cylindrical member in a state where they are prevented from coming off. A spring is provided to force the engaging part of the engaging member to protrude to both sides of the cylinder member, so that the engaging part can be inserted into and removed from the rail presser insertion hole in a free state. A biasing engagement member protruding from the rail presser insertion hole, and a locking portion for locking the engagement portion while inserting and holding the biasing engagement member into the insertion hole. A locking body having a locking body is disposed below the bottom plate portion so as to face opposite sides of the opening, and the rail mounting bracket is configured to be freely inserted into and removed from the opening against the biasing force of the spring. At the same time, when the rail mounting bracket is inserted into the opening, the engaging member is engaged with both of the locking bodies under elastic deformation of the spring, and the rail mounting bracket is biased downward. A fastening device for a rail mounting bracket for a concrete sleeper formwork, characterized in that it is configured to be fastened to the formwork.