JPS60104456U - manhole cover - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Fig. 1 is a cutaway perspective view showing a manhole cover according to an embodiment of the present invention; Fig. 2 is a bottom view of the fiber frame fixed to the surface layer member;
FIG. 3 is a process explanatory diagram showing a method for manufacturing a manhole cover, and FIG. 4 is a perspective view showing the other side of the fiber frame. A: Manhole cover, 1: Surface member, 2: Fiber, frame, 3:
Top plate, 4: 8-face plate, 5: protrusion, 6a: reinforcing bar.

Claims (1)

[Scope of utility model registration request] An iron surface member having an L-shaped side plate formed on the outer periphery of the circular top plate and a protrusion integrally formed at the center of the inner surface of the top plate; and a plurality of iron surface members whose inner ends are fixed to the protrusion. a fiber frame in which long fiber wires are stretched over a reinforcing steel frame in which reinforcing bars are arranged radially, and the fiber stretched surface of the long fiber wires is formed into an elevational shape; the fiber frame is incorporated in a cement mixture. A manhole cover characterized in that the top surface and outer peripheral surface of the cement mixture are covered with the surface layer member.