Geometrical instruments – Straight-line light ray type – Level
Patent
1997-07-01
1999-11-30
Fulton, Christopher W.
Geometrical instruments
Straight-line light ray type
Level
16114R, 16116R, 16112, 33704, B25G 300, G01C 300
Patent
active
059920319
ABSTRACT:
A handgrip mounting structure in an electric device comprises a main body and a handgrip to be mounted on the main body. The handgrip includes a holding portion, to be held by an operator, having a predetermined length, and mounting portions to be mounted on the main body. The mounting portions are provided at each end of the holding portion. The handgrip has a thermal expansion ratio in the longitudinal direction of the holding portion that is different from that of the main body. At least one of the mounting portions of the holding portion is mounted to the main body so that a shaft member, provided on one of the mounting portions and the main body, is inserted into a through hole formed on the other of the main body and the one of the mounting portions. A clearance in the longitudinal direction of the holding portion is provided between the through hole and the shaft member so that a dimensional change, due to thermal expansion, between the holding portion and the main body is permitted by relative movement between the holding portion and the main body.
REFERENCES:
patent: 2416621 (1947-02-01), Gretschel
patent: 2537750 (1951-01-01), Gretschel
patent: 4827567 (1989-05-01), Beach
patent: 5005255 (1991-04-01), Pare et al.
patent: 5159760 (1992-11-01), Spiegel et al.
Asahi Kogaku Kogyo Kabushiki Kaisha
Fulton Christopher W.
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