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公开(公告)号：US4438891A
公开(公告)日：1984-03-27
申请号：US266658
申请日：1981-05-26
申请人： Selmer L. Wiig
发明人： Selmer L. Wiig
摘要： A capstan driven web system having a take-up reel and a supply reel, the tape being drawn from the supply reel by a tape driven capstan arrangement. The drawn tape is collected on the take-up reel which is mechanically coupled to the supply reel by a mechanism having variable transfer ratio. In one embodiment, the variable ratio transport system is formed of a belt drive system having variable diameter pulleys coupled to each of the tape reels. The transfer ratio of the variable diameter pulley system is controlled by a servo mechanism which selects an appropriate transfer ratio in response to the position of a servo arm which senses the tension of the tape.
摘要翻译： 具有卷取卷轴和供带盘的绞盘驱动卷筒纸系统，该带通过带驱动的绞盘装置从供带盘上拉出。 拉伸的带子被收集在卷取卷轴上，该卷取卷轴通过具有可变传送比的机构机械耦合到供带盘。 在一个实施例中，可变比率传输系统由带驱动系统形成，该传动系统具有连接到每个磁带盘的可变直径的滑轮。 可变直径滑轮系统的传送比由伺服机构控制，该伺服机构响应于感测磁带张力的伺服臂的位置选择适当的传送比。
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公开(公告)号：US4145016A
公开(公告)日：1979-03-20
申请号：US780319
申请日：1977-03-23
申请人： Selmer L. Wiig
发明人： Selmer L. Wiig
CPC分类号： G11B15/43
摘要： A mechanism by which more than one torsion spring can be serially coupled to a member to impart a torque thereto equivalent to that from a single spring having the same number of turns as the total turns of the coupled springs. The springs to be coupled are connected at one end to respective storage shafts which are mounted to a free floating coupling arm. The coupling arm rotates about a shaft coaxial with the member to which the other ends of the springs are attached. In a capstan driven web system having a take-up reel and a supply reel, two sets of serially coupled negator springs are utilized to maintain proper web tension during driving of the web system.
摘要翻译： 一种机构，通过该机构，多于一个的扭转弹簧可以串联地连接到构件上以赋予与其相同数量的匝数与单独弹簧的总匝数相同的扭矩。 要联接的弹簧的一端连接到安装到自由浮动联接臂上的相应的存储轴。 联接臂围绕与弹簧的另一端连接的构件同轴的轴旋转。 在具有卷取卷轴和供带盘的绞盘驱动卷筒纸系统中，使用两组串联耦合的否定弹簧来在卷筒纸系统的驱动期间保持适当的卷筒纸张力。
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