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Patent Searching and Data


Title:
AIMING SCREW
Document Type and Number:
WIPO Patent Application WO/2015/072490
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent tilting of a lamp unit with respect to a lamp housing more than is necessary, so as to prevent damage to the lamp unit or the aiming screw and a fall of the aiming screw from the lamp housing. An aiming screw (18) according to the present invention is provided with: a shaft portion (19) including a screw portion (22) that is rotated in an axial direction so as to adjust the direction of irradiation of light emitted from a light source of a lamp unit disposed inside a lighting fixture outer housing, the screw unit being in threaded engagement with a nut linked with the lamp unit or a bracket supporting the lamp unit, and a supported shaft portion (24) rotatably supported on the lamp housing; and an operated portion (20) continuous with one end of the shaft portion and operated for rotation. The screw portion includes a threaded-engagement area (25) in threaded engagement with the nut and a non-threaded-engagement area (26) not in threaded engagement with the nut which are continuously disposed. The screw portion is formed such that in the non-threaded-engagement area, the height of the thread decreases with increasing distance from the threaded-engagement area.

Inventors:
KOITO MANUFACTURING CO.,LTD. (4-8-3, Takanawa Minato-k, Tokyo 11, 〒1088711, JP)
TACHIIWA, Takeyuki (Shizuoka Plant, 500, Kitawaki, Shimizu-ku, Shizuoka-sh, Shizuoka 64, 〒4248764, JP)
MAEDA, Manabu (Shizuoka Plant, 500, Kitawaki, Shimizu-ku, Shizuoka-sh, Shizuoka 64, 〒4248764, JP)
Application Number:
JP2014/079983
Publication Date:
May 21, 2015
Filing Date:
November 12, 2014
Export Citation:
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Assignee:
KOITO MANUFACTURING CO.,LTD. (4-8-3, Takanawa Minato-k, Tokyo 11, 〒1088711, JP)
International Classes:
B60Q1/068; F16B35/00; F21S8/12; F21W101/10
Foreign References:
JPH0520202U1993-03-12
JP2011059585A2011-03-24
JP2007292131A2007-11-08
JP2003172330A2003-06-20
US20020044440A12002-04-18
JP2013082430A2013-05-09
Attorney, Agent or Firm:
IWATA, Masanobu et al. (Technopeer Patents & Trademarks, Hakusei Bldg. 8th Floor 1-3-9, Iwamoto-cho, Chiyoda-k, Tokyo 32, 〒1010032, JP)
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