箱体及び局所排気装置 - Okamura Corporation

Title:

箱体及び局所排気装置

Document Type and Number:

Japanese Patent JP6905424

Kind Code:

B2

Abstract:

To provide an ascent/descent door that enables a smooth and accurate lifting/lowering operation by making weight adjustment work more efficient, a box body, and a local exhaust device.SOLUTION: An ascent/descent door 13, which is looped over a wire rod support member and connected to a second end of a suspended wire rod having a main weight connected to a first end, is constituted to be capable of being lifted/lowered in a sliding manner by traveling of the suspended wire rod along the wire rod support member. The ascent/descent door comprises a door body 81, and a weight adjustment mechanism 83 that is provided in the door body 81 and that can adjust the weight of the ascent/descent door 13 itself.SELECTED DRAWING: Figure 5

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Inventors:

Ryusuke Yoshida
Tomoe Daisuke
Shin Sakagami

Application Number:

JP2017169747A

Publication Date:

July 21, 2021

Filing Date:

September 04, 2017

Export Citation:

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Assignee:

Okamura Corporation

International Classes:

B01L1/00; F24F7/06

Domestic Patent References:

JP2009291750A
JP2096635A
JP9105268A

Attorney, Agent or Firm:

Yasushi Matsunuma
Suzuki Mitsuyoshi

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