Wire reel, reinforcing bar binding machine, and rotational information detecting method
AssigneeMax Co., Ltd.
InventorsYasushi Nakagawa, Kouji Katou, Tsuyoshi Kobayashi, Yu Yamamoto
Life of this patent
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Abstract
A wire reel is detachably provided in a housing chamber of a binding machine body which binds a reinforcing bar. The wire reel includes a cylindrical hub portion which winds a wire, and a pair of parallel flanges overhanging outward from both external peripheral ends of the hub portions. A side wall inside the hub portion is formed of light-transmitting portions which allow the light from a transmissive photosensor provided in the binding machine body to be transmitted therethrough.
Claims15
A wire reel which is mountable to a housing chamber of a binding machine body of a reinforcing bar binding machine, the wire reel comprising:
- a cylindrical hub portion on which a wire is wound;
- an inner tube formed coaxially with the hub portion inside of the hub portion;
- a pair of parallel flanges extending outwardly from the hub portion, wherein the pair of parallel flanges are spaced from each other in an axial direction of the wire reel such that, with respect to the axial direction, the first flange is on a first side of the wire reel and the second flange is on a second side of the wire reel;
- at least one side wall that is provided radially inside of the hub portion between the hub portion and the inner tube;
- and
- a plurality of light-transmitting portions provided in the side wall, each of which defines a portion of an optical light path extending through the wire reel such that each optical path extends from said first side of the wire reel, through one of said plurality of light transmitting portions, and to said second side of said wire reel;
- wherein the plurality of light transmitting portions are configured to allow a reinforcing bar binding machine to detect a type of the wire wound on the hub portion by the plurality of light transmitting portions being non-uniformly spaced in a circumferential direction about the side wall such that an interval between one light transmitting portion and one adjacent light transmitting portion is different from an interval between the one light transmitting portion and another adjacent light transmitting portion.
A wire reel which is mountable to a housing chamber of a binding machine body of a reinforcing bar binding machine, the wire reel comprising:
- a cylindrical hub;
- an inner tube spaced inside of said cylindrical hub such that a radial space is provided between said cylindrical hub and said inner tube;
- first and second parallel flanges extending radially outwardly from said cylindrical hub, wherein said first and second flanges are spaced in an axial direction such that, with respect to the axial direction said first flange is on a first side of the wire reel and said second flange is on a second side of the wire reel;
- a side wall extending between said cylindrical hub and said inner tube;
- a plurality of light transmitting portions extending through said side wall, wherein a light transmission path extends through each of the plurality of light transmitting portions and from said first side to said second side such that light passes through the wire reel from the first side, through the light transmitting portions, and to the second side;
- wherein the side wall extends between said hub portion and said inner tube such that said plurality of light transmitting portions are positioned radially between the hub portion and the inner tube,
- wherein the plurality of light transmitting portions are configured to allow a reinforcing bar binding machine to detect a wire to be wound on the wire reel based on an interval between one light transmitting portion and one adjacent light transmitting portion being different from an interval between the one light transmitting portion and another adjacent light transmitting portion, in a circumferential direction about the side wall.
Dependencies are inferred from the claim text.