Multi-hole core drilling equipment

JP7789430B2Active Publication Date: 2025-12-22EGUN CO LTD
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Patent Information

Application Number
JP2024506149
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-08-02
Filing Date
2022-07-22
Publication Date
2025-12-22
Estimated Expiration
2042-07-22

AI Technical Summary

Technical Problem

Conventional core drill devices require multiple setups for drilling multiple holes, leading to inefficient work processes and high labor costs, especially in environments requiring numerous holes to be drilled quickly.

Method used

A three-hole core drill device with a main body, elevator carriage, fixed and rotating plates, and multiple core bits that allow simultaneous drilling of three holes with adjustable angles and distances, facilitated by a gear system and water cooling.

Benefits of technology

Enables simultaneous drilling of three holes with adjustable angles and distances, enhancing efficiency and reducing labor requirements and costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

The three-hole core drill device of the present invention includes a main body; a lifting carriage mounted on the main body so as to be able to rise and fall; a fixed plate coupled to one side of the lifting carriage and rotatably supporting a drive shaft of a motor; a rotating plate fastened to the fixed plate under conditions for changing a rotation angle; a pair of movable plates movably fastened to both sides of the rotating plate; a driving gear coupled to the drive shaft, and a pair of driven gears coupled to a pair of driven shafts rotatably mounted on the pair of movable plates; a pair of movable gears mounted between the driving gear and the pair of driven gears; a first core bit coupled to the drive shaft; and a second core bit and a third core bit coupled to the pair of driven shafts.
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Citation Information

Patent Citations

  • JP1973049092A

  • Sheet material such as a concrete drill device -

    JP1985029607U

  • Multi-shaft core drill

    JP2000202827A