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    DEVICE FOR BENDING AN EXTREMITY OF A TORSIONAL SPRING
    12.
    发明专利
    DEVICE FOR BENDING AN EXTREMITY OF A TORSIONAL SPRING 未知

    公开(公告)号：CA2445719A1

    公开(公告)日：2002-11-28

    申请号：CA2445719

    申请日：2002-05-22

    Applicant: CANIMEX INC

    Inventor： SAVARD NORMAND ,  ALLEN GUILLAUME ,  LAROCHELLE PHILIPPE

    IPC: B21F1/00 ,  B21F3/027 ,  B21F35/02

    Abstract: A device (1) for bending an extremity (3) of a torsional spring (5). The device includes a base plate (7); at least one flange (9) projecting from th e base plate; at least one bulge (11) projecting from the at least one flange; a lever arm (13) pivotally mounted onto the at least one flange about a first pivot axis; and at least one cam pivotally mounted onto the lever arm about a second pivot axis. The lever arm is operable between first and second positions and each cam (15) has a contact surface (21) being positioned for operatively cooperating with a corresponding bulge. Prior to the bending operation, the extremity of the torsional spring is inserted between a given bulge and the contact surface (21) of a corresponding cam when the lever arm is in the first position. In operation, the extremity of the spring is bent about the given bulge by the contact surface of the corresponding cam when t he contact surface is urged towards the bulge and forced about the same over th e extremity of the spring as the lever arm is operated into the second positio n. The device enables an easier, simpler and more cost effective way of bending an extremity of a torsional spring, without the use of heat for bending the spring tail, and may be easily transportable from one site to another. Moreover, the device can be used for bending the extremities of torsional springs having different wire sizes.

    HAND TOOL BENDING MACHINE FOR SPRINGS USED IN ANCHOR PLUGS
    13.
    发明专利
    HAND TOOL BENDING MACHINE FOR SPRINGS USED IN ANCHOR PLUGS 未知

    公开(公告)号：CA2348101A1

    公开(公告)日：2002-11-22

    申请号：CA2348101

    申请日：2001-05-22

    Applicant: CANIMEX INC

    Inventor： LAROCHELLE PHILIPPE ,  ALLEN GUILLAUME ,  SAVARD NORMAND

    IPC: B21F1/00 ,  B21F3/027 ,  B21F35/02 ,  E05D13/00

    Abstract: A device for bending an extremity of a torsional spring. The device includes a base plate; at least one flange projecting from the base plate; at least one bulge projecting from the at least one flange; a lever arm pivotally mounted onto the at least one flange about a first pivot axis; and at least one cam pivotally mounted onto the lever arm about a second pivot axis. The lever arm is operable between first and second positions and each cam has a contact surface being positioned for operatively cooperating with a corresponding bulge. Prior to the bending operation, the extremity of the torsional spring is inserted between a given bulge and the contact surface of a corresponding cam when the lever arm is in the first position. In operation, the extremity of the spring is bent about the given bulge by the contact surface of the corresponding cam when the contact surface is urged towards the bulge and forced about the same over the extremity of the spring as the lever arm is operated into the second position. The device enables an easier, simpler and more cost effective way of bending an extremity of a torsional spring, without the use of heat for bending the spring tail, and may be easily transportable from one site to another. Moreover, the device can be used for bending the extremities of torsional springs having different wire sizes.

    PLUG FOR OPERATIVELY CONNECTING TORSION SPRINGS TO OVERHEAD SHAFTS OF COUNTERBALANCING SYSTEMS USED FOR GARAGE DOORS AND THE LIKE
    14.
    发明专利
    PLUG FOR OPERATIVELY CONNECTING TORSION SPRINGS TO OVERHEAD SHAFTS OF COUNTERBALANCING SYSTEMS USED FOR GARAGE DOORS AND THE LIKE 未知

    公开(公告)号：CA2353067A1

    公开(公告)日：2002-01-14

    申请号：CA2353067

    申请日：2001-07-13

    Applicant: CANIMEX INC

    Inventor： SAVARD NORMAND ,  GUAY RAFAEL ,  FOUCAULT PIERRE-LOUIS ,  TOUSIGNANT SAMUEL

    IPC: E05F7/06

    Abstract: A plug for use in a counterbalancing mechanism of a cable-operated door . The plug is mounted about an overhead shaft and used for operatively connecting the overhead shaft to a torsion spring coaxially mounted thereon. The plug includes a cylindrical collar and a cylindrical flange. The cylindrical coll ar has opposite first and second portions. The collar is provided with a hooking sl ot for hooking a free end of the torsion spring therein and the torsion spring has a segment coaxially mounted about the first portion of the collar. The cylindrical flange is rigidly affixed to the second portion of the collar. The flange is used for transferring a torque between the torsion spring and the overhead shaft when the flange is securely fixed about the overhead shaft. The plug further includes a shouldering floor of a given length faced against the hooking slot and extending inside the collar, from the second portion towards the first portion thereof , between the collar and the overhead shaft.

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