Combination structure of belt conveyor and shutter device

The combination of a belt conveyor and shutter device with overlapping shutters addresses the challenge of preventing foreign entry by closing spaces above and below the belt, enhancing security in poultry farming facilities.

JP7734974B2Active Publication Date: 2025-09-08HYTEM CO LTD
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Patent Information

Application Number
JP2022567578
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-05-07
Publication Date
2025-09-08
Estimated Expiration
2041-05-07

AI Technical Summary

Technical Problem

Existing conveyor systems in poultry farming facilities, particularly belt conveyors, face challenges in preventing foreign objects and small animals from entering through openings in walls, as conventional shutter devices are designed for bar conveyors and fail to effectively close the spaces above and below the conveyor belt sections.

Method used

A combination structure of a belt conveyor and a shutter device, where the conveyor belt sections are sandwiched between an upper and a lower shutter, with the shutters moving in opposite directions via a feed screw mechanism, allowing the shutters to overlap and close the spaces above and below the belt, using the inherent sag of the belt to facilitate overlap.

Benefits of technology

Effectively prevents foreign objects and small animals from entering through wall openings by simultaneously closing the spaces above and below the conveyor belt, utilizing a simplified mechanism that does not interfere with the conveyor frame and requires minimal additional space.

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Abstract

A shutter device (5) for opening and closing an opening in a wall in a state in which a conveyor belt has been passed through the opening is configured to comprise: a pair of pillars (51); an upper shutter (61) and a lower shutter (62) that move vertically between the pair of pillars (51); and a feed screw (52) with upper male threads (52) and lower male threads (52b) oriented in opposite directions, an upper nut (53a), and a lower nut (53b), as an elevating drive mechanism that simultaneously drives the vertical movement of the upper shutter (61) and the lower shutter (62).
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