Title:
給水加熱器マンホール蓋取外・取付装置
Document Type and Number:
Japanese Patent JP4262338
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a feed water heater manhole lid detaching/attaching device allowing easy and sure detaching/attaching of a manhole lid of light weight, and easy in the disassembling, carrying, storage, and assembling. SOLUTION: This device is constituted of a body arm part B, a traveling part C, and two rails D, the body arm part B is provided with an arm B1, and an arm rotating means B2 rotating this arm to the left/right at an angle approximately π/2, the arm B1 is provided with an engagement tip J1 detachably engaged with an engagement part J provided on the surface of a manhole lid 1 and horizontally falls the manhole lid 1 with its engaged thereto, and the traveling part C is provided with a raising/lowering jack C1 which supports the body arm part B and moves the body arm part B in the vertical direction on a rail, a multiple-shaft traveling wheel C3 which travels on the upper face of the rail in the front/rear direction and draws or inserts the arm tip of the body arm part B from/into the manhole 2, a cam follower C4 which is arranged in the bottom face of the rail in such a state as preventing the falling and the disengagement with a wheel of the body arm part B, and a wheel lock mechanism C5 regulating the movement in the front/rear direction of the body arm part B.
Inventors:
Shinji Goto
Shojiro Suzuki
Shojiro Suzuki
Application Number:
JP32444598A
Publication Date:
May 13, 2009
Filing Date:
October 30, 1998
Export Citation:
Assignee:
Tokyo Enesis Co., Ltd.
International Classes:
B65D90/10; F16J13/02
Domestic Patent References:
| JP55036535A | ||||
| JP40023385B1 | ||||
| JP5201687A | ||||
| JP7268889A | ||||
| JP9301655A |
Attorney, Agent or Firm:
Hidehiko Takei