Brake system of wire reel in reinforcing bar binding machine

Patent metadata

Field	Value
Publication number	US-2017305584-A1
Application number	US-201715639853-A
Country	US
Kind code	A1
Filing date	Jun 30, 2017
Priority date	May 19, 2008
Publication date	Oct 26, 2017
Grant date	—

Abstract

A reinforcing bar binding machine is provided with a feed means for feeding a wire from a wire reel rotatably mounted on a binding machine body, a braking means for braking a rotation of the wire reel, and a control means that starts a braking to the rotation of the wire reel by the braking means after the wire is fed to a predetermined amount by the feed means.

First claim

1 - 9 . (canceled)

10 . A reinforcing bar binding machine which includes a binding machine body, wherein the reinforcing bar binding machine feeds a wire fed from a wire reel rotatably supported on the binding machine body, winds the fed wire about reinforcing bars, and twists the wire to bind the reinforcing bars, the reinforcing bar binding machine comprising:
a solenoid that includes a core which is arranged to be movable between a retracted position and an extended position; a cover which is part of the binding machine body and which provides a partition between a first side at which the solenoid is located and a second side at which the wire reel is provided; and at least one lever, wherein a locking portion extends from the at least one lever on the second side, wherein the locking portion is movable between an engaged position at which the locking portion brakes the wire reel and a disengaged position at which the locking portion releases the wire reel so that the wire reel is rotatable, and wherein movement of the core of the solenoid actuates movement of the at least one lever for allowing movement of the locking portion between the engaged and disengaged positions.

11 . The reinforcing bar binding machine of claim 10 , further comprising:
a member extending through the cover to couple the movement of the core with movement of the locking portion.

12 . The reinforcing bar binding machine of claim 11 ,
wherein the member engages with the lever to move the lever and thereby move the locking portion.

13 . The reinforcing bar binding machine of claim 11 , further comprising:
a bracket, wherein a first portion of the member extends through the cover, and wherein a second portion of the member is supported by the bracket.

14 . The reinforcing bar binding machine of claim 13 ,
wherein the locking portion is positioned at a location which is vertically lower than the bracket in a state where the reinforcing bar binding machine is in an upright orientation in which a handle extends downwardly.

15 . The reinforcing bar binding machine of claim 11 , further comprising:
a bias spring, wherein force provided by the member and force provided by the bias spring controls positioning of the locking portion between the engaged position and the disengaged position.

16 . A reinforcing bar binding machine which includes a binding machine body, wherein the reinforcing bar binding machine feeds a wire fed from a wire reel rotatably supported on the binding machine body, winds the fed wire about reinforcing bars, and twists the wire to bind the reinforcing bars, the reinforcing bar binding machine comprising:
a feed motor coupled to the binding machine body and that rotates the wire reel to feed wire from the wire reel; a solenoid which includes a core that is movable between a retracted position and an extended position; a cover which is part of the binding machine body and which provides a partition between a first side at which the solenoid is located and a second side at which the wire reel is provided; a locking lever having a locking portion, wherein the locking lever is positioned on the second side; and at least one member between the solenoid and the locking lever to couple actuating movement of the solenoid with movement of the locking lever and thereby cause movement of the locking portion, wherein the locking portion is movable between an engaged position at which the locking portion brakes the wire reel and a disengaged position at which the locking portion releases the wire reel so that the wire reel is rotatable, and wherein the at least one member extends through the cover.

17 . The reinforcing bar binding machine of claim 16 ,
wherein the at least one member engages with the locking lever to move the locking lever and the locking portion.

18 . The reinforcing bar binding machine of claim 16 , further comprising:
a bracket, wherein the at least one member is supported by the bracket.

19 . The reinforcing bar binding machine of claim 16 , further comprising:
a bracket, wherein a first portion of the at least one member extends through the cover, and a second portion of the at least one member extends into the bracket, and wherein the locking portion is positioned at a location which is vertically lower than the bracket in a state where the reinforcing bar binding machine is in an upright orientation in which a handle extends downwardly.

20 . The reinforcing bar binding machine of claim 16 ,
wherein the locking lever extends downwardly from a location of the at least one member in a state where the reinforcing bar binding machine is in an upright orientation at which a handle extends downwardly, such that the locking portion is located at a position lower than the at least one member.

21 . The reinforcing bar binding machine of claim 16 , further comprising:
a bias spring, wherein force provided by the at least one member and force provided by the bias spring controls positioning of the locking portion between the engaged position and the disengaged position.

22 . The reinforcing bar binding machine of claim 21 ,
wherein the locking portion is positioned at a location which is vertically lower than a location of the at least one member in a state where the reinforcing bar binding machine is in an upright orientation at which a handle extends downwardly.

23 . A reinforcing bar binding machine having a binding machine body, which feeds a wire from a wire reel that is rotatably supported by the binding machine body, winds the wire fed from the wire reel around reinforcing bars, and twists the wire wound around the reinforcing bars to bind the reinforcing bars, the reinforcing bar binding machine comprising:
a solenoid having a reciprocating movable core; a lever having a locking portion; at least one member that is coupled to the core, wherein the at least one member engages the lever to cause movement of the lever in response to movement of the core; and a bracket attached to the binding machine body and which supports a portion of the at least one member, wherein the locking portion is movable between an engaged position at which the locking portion engages the wire reel to brake the wire reel and a disengaged position at which the wire reel is released to be rotatable, and wherein actuation of the solenoid causes movement of the lever by way of the at least one member so that the locking portion of the lever is moved between the disengaged position and the engaged position.

24 . The reinforcing bar binding machine of claim 23 ,
wherein in a state where the reinforcing bar binding machine is in an upright orientation in which a handle extends downwardly, the locking portion is disposed at a position vertically lower than a position of the bracket.

25 . The reinforcing bar binding machine according to claim 24 , further comprising:
a cover which provides a partition between a first side and a second side, wherein the solenoid is positioned on the first side, wherein the lever and the locking portion of the lever are on the second side, and wherein the at least one member includes a first portion which extends through the cover and a second portion which is supported by the bracket.

26 . The reinforcing bar binding machine according to claim 23 , further comprising:
a cover which provides a partition between a first side and a second side, wherein the solenoid is positioned on the first side, wherein the lever and the locking portion of the lever are on the second side,

Assignees

• Max Co Ltd

Inventors

• Itagaki Osamu

Classifications

• B65B13/025

  Hand-held tools · CPC title

• E04G21/123

  Wire twisting tools (bundling articles by twisting, e.g. wire B65B13/28; bundling rods, sticks, or like elongated objects with, e.g. wire B65B27/10; tying devices for hops, vines or trees with, e.g. wire A01G17/08) · CPC title

• E04G21/122 Primary

  Machines for joining reinforcing bars · CPC title

• B21F15/04

  without additional connecting elements or material, e.g. by twisting · CPC title

• B65B13/22 Primary

  Means for controlling tension of binding means · CPC title