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    Spring clutch with automatic disconnect feature
    51.
    发明授权
    Spring clutch with automatic disconnect feature 失效
    具有自动断开功能的弹簧离合器

    公开(公告)号：US3850275A

    公开(公告)日：1974-11-26

    申请号：US31837272

    申请日：1972-12-26

    Applicant: HELANDER PROD INC

    Inventor： HELANDER E

    IPC: F16D13/02 ,  F16D11/06

    CPC classification number: F16D13/025

    Abstract: A spring clutch includes an input drive member, a helical spring of square cross-section tightly wrapped on the drum of said drive member and an output member journalled in a fixed bearing block and including a drum of slightly smaller diameter than the drum of the drive member. The free end of the spring includes a tang which is restrained by a braking collar. When the input shaft is being driven, as by a sprocket, the spring twists helically, contracting to grip the output drum and drive the output shaft at the same speed as the sprocket. The collar is rotatably supported on the fixed bearing block and normally rotates with the output shaft. However, when the input shaft is stopped, the collar slips on the bearing block, the spring being uncontracted. This releases the output shaft and allows the shaft to be manually rotated independently of the input shaft. Another version also includes a single revolution type collar, also normally rotatable with the output and the input members but with a notch for receiving a tang of the spring. Stopping of the collar by an AC solenoid operated bar causes the spring to unwrap from the input hub. The output shaft can then be freely rotated by hand even when the input hub is continually driven.

    Abstract translation: 弹簧离合器包括输入驱动构件，紧密地缠绕在所述驱动构件的滚筒上的正方形横截面的螺旋弹簧和输出构件，所述输出构件轴颈安装在固定的轴承座中并且包括直径比驱动器的滚筒稍小的滚筒 会员。 弹簧的自由端包括被制动衬套约束的脚。 当输入轴被驱动时，如通过链轮，弹簧螺旋地扭转，收缩以夹紧输出滚筒并以与链轮相同的速度驱动输出轴。 轴环可旋转地支撑在固定的轴承座上，并且通常与输出轴一起旋转。 然而，当输入轴停止时，轴环在轴承座上滑动，弹簧未被收缩。 这将释放输出轴，并允许轴独立于输入轴手动旋转。 另一个版本还包括一个单一旋转的领，通常也可以与输出和输入构件一起旋转，但是具有用于容纳弹簧的柄脚的凹口。 通过交流电磁铁操作杆停止轴环会导致弹簧从输入轮毂展开。 即使输入轴连续驱动，输出轴也可以手动自由旋转。

    Adjusting collar for single revolution spring clutch
    52.
    发明授权
    Adjusting collar for single revolution spring clutch 失效
    调整胶卷单弹簧弹簧离合器

    公开(公告)号：US3835972A

    公开(公告)日：1974-09-17

    申请号：US31857272

    申请日：1972-12-26

    Applicant: HELANDER PROD INC

    Inventor： HELANDER E

    IPC: F16D13/02 ,  F16D11/06

    CPC classification number: F16D13/025

    Abstract: The single revolution spring clutch comprises a spring wrapped around adjacent input and output hubs, a release collar for releasing the spring from coupling engagement with the input hub when the collar is stopped from rotating with the clutch assembly and a clamp type adjusting collar. The adjusting collar is clamped on the output hub and coupled, by means of a pin and slot, to the release collar. The angular relationship between the release collar and the output hub can be conveniently varied after the clutch is mounted on the shaft of a machine. The adjusting collar is clamped to that end of the spring which is wrapped on the output hub and serves to clamp this end of the spring to the output hub. The adjustment is accomplished by loosening the adjusting collar, rotating the release collar to the desired position and retightening the adjusting collar.

    Abstract translation: 单转弹簧离合器包括围绕相邻的输入和输出轮毂的弹簧，释放套环，用于当套环停止与离合器组件和夹紧型调节套环旋转时，释放弹簧与输入轮毂的联接接合。 调节套环被夹紧在输出轮毂上，并通过销和槽连接到释放套环。 离合器安装在机器的轴上之后，释放环和输出轮毂之间的角度关系可以方便地改变。 调节套环被夹紧在弹簧的端部，弹簧的端部被包裹在输出轮毂上，用于将弹簧的这一端夹紧到输出轮毂。 通过松开调节套环，将释放套环旋转到所需位置并重新调整调节套环来实现调整。

    Clutch and brake assembly
    53.
    发明授权
    Clutch and brake assembly 失效
    离合器和制动总成

    公开(公告)号：US3797618A

    公开(公告)日：1974-03-19

    申请号：US3797618D

    申请日：1972-08-25

    Applicant: PETERSON CO C

    Inventor： PETERSON C ,  AIJALA S

    IPC: F16D13/02 ,  F16D49/02 ,  F16D67/02

    CPC classification number: F16D13/025 ,  F16D49/02 ,  F16D67/02

    Abstract: A clutch and brake assembly of particular utility where a single-revolution clutching action is desired, although not limited thereto, wherein a single helical coil spring is utilized to effect both the desired clutching and braking operation. Means are provided for causing the spring to either wind or unwind. In the former situation, the spring acts as a brake by coupling the driven shaft to a fixed hub. In the latter situation, the spring acts as a clutch by coupling the driven shaft with a rotating drive wheel.

    Abstract translation: 一种具有特殊用途的离合器和制动器组件，其中希望采用单转离合作用，尽管不限于此，其中使用单个螺旋螺旋弹簧来实现期望的夹紧和制动操作。 提供用于使弹簧卷起或放松的装置。 在前一种情况下，弹簧通过将从动轴连接到固定轮毂而用作制动器。 在后一种情况下，弹簧通过将从动轴与旋转的驱动轮联接而作为离合器。

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