JPH0365745U

JPH0365745U -

Info

Publication number: JPH0365745U
Application number: JP12560689U
Authority: JP
Priority date: 1989-10-30
Filing date: 1989-10-30
Publication date: 1991-06-26

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す正面図、第
２図は使用状態を示す断面図、第３図は右側面図
、第４図は平面図である。１……下部側塊、４……底塊板、５……調整側
塊、６……上部側塊、７……床板塊、８……コン
クリート打設部、９……マンホール蓋、１０……
受枠、１１……取付突板部、１１ａ……ボルト挿
通孔、１２……ボルト、１４……ナツト。 FIG. 1 is a front view showing an embodiment of this invention, FIG. 2 is a sectional view showing the state of use, FIG. 3 is a right side view, and FIG. 4 is a plan view. 1...Lower side block, 4...Bottom block plate, 5...Adjustment side block, 6...Upper side block, 7...Floor board block, 8...Concrete placement part, 9...Manhole cover, 10... …
Receiving frame, 11... Mounting projecting plate portion, 11a... Bolt insertion hole, 12... Bolt, 14... Nut.

Claims

[Scope of utility model registration request]

A bottom block plate with a substantially rectangular plan view, a lower block of a substantially rectangular parallelepiped with drainage pipe insertion openings at the front and back, an upper block of a substantially rectangular parallelepiped, and a floor board block with an opening for an entrance and exit at the top were sequentially stacked. A concrete manhole block is constructed by stacking the upper block and the floorboard block with a ladder for lifting and lowering that connects to the opening, and attaches a mounting projecting plate part for bolt connection to the lower side centering on the insertion opening. Protrusions are provided to correspond vertically to the right and left and lower positions of the block and the bottom block plate, and to the lower side block, the upper side block, and the floor plate block on approximately the central axis of the insertion opening between the mounting projecting plate parts. A concrete manhole block characterized by having projecting mounting plate parts for bolt connection corresponding to the upper and lower sides.