US 10,816,662 B2Granted

Flasher type fish finder

AssigneeHonda Electronics Co., Ltd.

InventorHiroaki Kokubo

Life of this patent

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Abstract

A flasher type fish finder has: a motor with a rotary shaft having play in an axial direction; a display rotating disk fixed to the rotary shaft; a first installation part; and a second installation part fixed to a member not influenced by the play. In the first installation part, a magnet or a ferromagnetic material is on the rotary shaft or the display rotating disk such that the center of gravity is at the rotary shaft center. In the second installation part, a magnet or a ferromagnetic material is provided occurring an attraction force or a repulsive force in the axial direction, for the magnet or the ferromagnetic material of the first installation part. The magnet is in at least one of the first installation part and the second installation part. The surfaces of a first magnetic pole and a second magnetic pole are orthogonal to the rotary shaft.

Claims20

Dependent claims

A flasher type fish finder having a motor provided with a rotary shaft having movable play in an axial direction, and a display rotating disk fixed to the rotary shaft, comprising:

a first installation part in which a magnet or a ferromagnetic material is provided on the rotary shaft or the display rotating disk so as to set the center of gravity at the shaft center of the rotary shaft;
and
a second installation part, fixed to a member not influenced by the play of the rotary shaft, in which a magnet or a ferromagnetic material is provided so as to cause an attraction force or a repulsive force in the axial direction of the rotary shaft with respect to the magnet or the ferromagnetic material provided in the first installation part,
wherein the magnet is provided in at least one of the first installation part and the second installation part so as to set a surface of a first magnetic pole and a surface of a second magnetic pole to be orthogonal to the rotary shaft.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/034,994Filed 13 Jul 2018
Published: US 2020/0018850 A116 Jan 2020
Granted: 27 Oct 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G01S 15/96
Sonar systems specially adapted for specific applications: for locating fish
A01K 97/125
Signalling devices, e.g. tip-up devices: using electronic components
G01S 7/521
Of systems according to group G01S15/00: constructional features
G01S 7/56
Of systems according to group G01S15/00: display arrangements