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Instrument for confirming hole enlarging

A tool and a diameter-expanding part technology, which is applied in the field of tools for diameter-expansion confirmation, can solve the problems such as failure to perform and confirm the formation of a diameter-expanding part, and inability to reliably prevent anchor bolts from falling off, thereby achieving the effect of simple structure and low-cost manufacturing

Active Publication Date: 2014-01-22
MIYANAGA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there was no simple method for confirming "whether the enlarged diameter part is properly formed" before, and this confirmation work was not carried out.
Therefore, there is a problem that the formation defect of the enlarged diameter part may be overlooked, and it is impossible to reliably prevent the anchor bolt from falling off.

Method used

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  • Instrument for confirming hole enlarging
  • Instrument for confirming hole enlarging
  • Instrument for confirming hole enlarging

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0051] (Structure of tool for diameter expansion confirmation)

[0052] figure 1 It is a perspective view showing the structure of the diameter expansion confirmation tool 10 according to the first embodiment of the present invention, figure 2 It is an exploded front view showing the structure of the diameter expansion confirmation tool 10, image 3 It is a perspective view showing the configuration of main parts of the diameter expansion checking tool 10 .

[0053] Such as Figure 5 As shown, diameter expansion confirmation tool 10 ( Figure 1 to Figure 3 ) is used to fix the anchor bolts 12 ( Figure 7 ) is a tool for confirming whether the enlarged diameter portion 16 is properly formed when forming the enlarged diameter portion 16 in the depth portion of the fixing hole 14. Such as Figure 5 As shown in (B), the bottom 14 a of the fixing hole 14 is formed in a substantially conical shape whose diameter becomes smaller toward the depth side, and the enlarged diameter...

no. 2 approach

[0072] Figure 8 It is a front view showing the configuration of the diameter expansion checking tool 60 of the second embodiment. In this tool 60 for diameter expansion confirmation, the operation rod 20 protrudes from the opening 18a on the root end side of the tool body 18, the operation part 62 is provided at the root end of the operation rod 20, and is formed on the outer peripheral surface of the root end. There are slots 64 which become "mark lines". The shape of the operation portion 62 is not particularly limited, but is formed in a disk shape in the second embodiment. in addition, Figure 8 A state in which the movable part 22 (except the root end) is moved outward by the pressing part 26 is shown.

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Abstract

The invention provides an instrument for confirming hole enlarging, which functions to confirm whether the enlarged part is correct or not or to determine whether the depth space and the expansion space (16) of a fixed hole (14) fastened to a foundation bolt are well enlarged or not. Technically, the instrument comprises a movable part (22), a pressing part (26) and an operating part (28) wherein the movable part (22) comprises at least one part capable of making reciprocal motions inside the fixed hole (14) along with the radial direction of the fixed hole (14) correspondingly to the position of the expansion space (16); the pressing part (26) makes at least one part of the pressing part (26) move in the inboard space (S) of the expansion space (16) with the assistance of the movable part (22); the operating part (28) is provided at the external part of the fixed hole (14) where power is outputted to drive the movable part (22).

Description

technical field [0001] The present invention relates to a tool for confirming diameter expansion, which is used for confirming whether the diameter expansion portion is properly formed when the diameter expansion portion is formed in the depth portion of a fixing hole for fixing anchor bolts. Background technique [0002] Conventionally, when fixing an object such as a machine tool to a foundation such as a concrete main body, a fixing method using anchor bolts has been employed (Patent Document 1). In short, this fixing method sequentially performs the following steps, that is, (a) a step of forming a fixing hole at a predetermined depth on the foundation; (b) a step of expanding the diameter of the deep part of the fixing hole to form an enlarged diameter part; (c ) a step of inserting anchor bolts into the fixing holes; (d) a step of expanding the diameter of the ends of the anchor bolts at the diameter-expanding portion; and (e) a step of fixing the object to be fixed us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/08E02D27/44F16M7/00
Inventor 宫永昌明
Owner MIYANAGA KK