JPS62120529U

JPS62120529U -

Info

Publication number: JPS62120529U
Application number: JP18952886U
Authority: JP
Priority date: 1986-12-09
Filing date: 1986-12-09
Publication date: 1987-07-31
Also published as: JPH026106Y2

Description

[Brief explanation of the drawing]

第１図および第２図は本考案の一実施例を示し
たものであつて、第１図は拡開前の第２の鉄筋篭
の側面図、第２図は拡開後の第２の鉄筋篭の側面
図である。また第３図〜第８図は従来技術を示し
たものであつて、第３図は第１施工例の縦断面図
、第４図は同施工に使用される鋼管の斜視図、第
５図は第２施工例の斜視図、第６図は第５図の部
分拡大図、第７図および第８図は拡開前後の第２
の鉄筋篭の側面図である。１……拡底部、２……第１の鉄筋篭、３……第
２の鉄筋篭、４……拡底部の底面、５……上部縦
部材、６……枢軸、７……下部縦部材、８……上
部係止リング、９……下部係止リング、１０，１
１……無端チエーン。 Figures 1 and 2 show one embodiment of the present invention, with Figure 1 being a side view of the second reinforcing bar cage before expansion, and Figure 2 being a side view of the second reinforcing bar cage after expansion. It is a side view of a reinforcing bar basket. Furthermore, Figures 3 to 8 show the prior art, in which Figure 3 is a longitudinal cross-sectional view of the first construction example, Figure 4 is a perspective view of the steel pipe used in the same construction, and Figure 5 is a perspective view of the second construction example, Figure 6 is a partially enlarged view of Figure 5, and Figures 7 and 8 are the second construction example before and after expansion.
It is a side view of the reinforcing bar basket. DESCRIPTION OF SYMBOLS 1... Expanded bottom part, 2... First reinforcing bar cage, 3... Second reinforcing bar basket, 4... Bottom surface of expanded bottom part, 5... Upper vertical member, 6... Pivot, 7... Lower vertical member , 8... Upper locking ring, 9... Lower locking ring, 10, 1
1...Endless chain.

Claims

[Scope of utility model registration request]

In the reinforcement arrangement of an expanded bottom shaft inserted into a vertical expanded bottom shaft having an expanded bottom part, a first reinforcing bar basket is formed by bundling a plurality of straight reinforcing bars into a cylindrical shape, and the lower end of the first reinforcing bar cage is connected to the an upper locking ring provided around the first reinforcing bar cage at a position corresponding to the entrance of the expanded bottom portion when in contact with the bottom surface of the expanded bottom portion; and a length corresponding to the height of the expanded bottom portion. a plurality of upper vertical members whose upper ends are pivotally connected to the upper locking ring at predetermined intervals; and a length corresponding to the radius of the bottom surface of the enlarged bottom portion; a plurality of lower vertical members whose upper ends are pivotally connected to the lower ends of the upper vertical members; and a ring having a smaller diameter than the first reinforcing bar cage, the lower ends of the lower vertical members being separated by a predetermined interval. and a lower locking ring pivotally coupled to each other, and by pressing the lower locking ring against the bottom surface of the enlarged bottom part, a third member comprising the upper vertical member and the lower vertical member The second reinforcing bar cage is configured to be expandable within the expanded bottom portion, and an endless chain is stretched along the circumferential direction of the second reinforcing bar cage in this expanded state, and the upper vertical member and the second reinforcing bar cage are attached to the endless chain. / Or reinforcement for an expanded bottom shaft characterized by connecting lower vertical members.