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    • 2. 发明申请
    • UTILITY HAND TRUCK
    • 实用手提卡车
    • WO2010030367A1
    • 2010-03-18
    • PCT/US2009/005093
    • 2009-09-11
    • SMITH, Don
    • SMITH, Don
    • B62B1/00
    • B62B1/125A47B85/00B62B5/067B62B2202/40B62B2205/12B62B2205/33B62B2301/08
    • A hand truck has a front load platform, a rear load platform, and a pair of lower wheel assemblies and a pair of upper wheel assemblies. The load platforms and the wheel assemblies fold and nest into the frame of the hand truck, resulting in a stored position in which the thickness is approximately the same as the side rails of the hand truck. Raising and lowering of the front load platform causes the lower wheel assemblies to move back and forth from the operational position to the storage position. Likewise, raising and lower of the rear load platform causes the upper wheel assemblies to move back and forth from the operational position to the storage position.
    • 手推车具有前负载平台,后负载平台,以及一对下轮组件和一对上轮组件。 负载平台和车轮组件折叠并嵌入手推车的框架中,导致存储位置,其中厚度与手推车的侧轨大致相同。 前负载平台的升高和降低导致下轮组件从操作位置前后移动到存储位置。 同样地,后负载平台的升高和下降使上轮组件从操作位置前后移动到存储位置。
    • 4. 发明申请
    • APPARATUS AND METHODS FOR APPLYING FLEXIBLE STRAPS AROUND BUNDLES OF OBJECTS
    • WO2001040053A3
    • 2001-06-07
    • PCT/US2000/032320
    • 2000-11-22
    • ENTERPRISES INTERNATIONAL, INC.HELLAND, GaryBALLOU, RichGREENLUND, MarlaSMITH, Don
    • HELLAND, GaryBALLOU, RichGREENLUND, MarlaSMITH, Don
    • B65B13/22
    • Apparatus and methods for applying flexible straps around objects include a feed and tension unit (350) a feed drive wheel and a feed pinch wheel, a primary tension drive wheel (360) and a primary tension pinch wheel (352), and a secondary tension drive wheel (362) and a secondary tension pinch wheel (364), wherein at least one of the pinch wheels is controllably biased against the respective drive wheel by a solenoid (370) that is controlled in two stages: a first stage that provides a full feed or tensioning force and a second stage that provides a reduced feed or tensioning force by altering the pulse width modulation of the solenoid. In another embodiment, the three sets of wheels of the feed and tension unit are configured to provide a simplified "V-shaped" strap path that reduces bending of the strap, thereby reducing friction and consequent feeding difficulties. In another embodiment, the feed and tension unit (350) includes inner and outer guides that form a strap channel through the feed and tension unit to provide easy access to the strap path for clearing the strap path in the event of a jam. In another embodiment, a track assembly (450) includes a plurality of sections providing modularity of construction. Each section includes a backplate attached to at least one support member, and a slotted cover pivotably attached to the at least one support member proximate the backplate and moveable between an open position spaced apart from the backplate and a closed position proximate the backplate. In another embodiment, a cutting assembly for severing strap material includes a press platen and a cutter having a first cutting blade along a first edge thereof and a second cutting blade along a second edge thereof, the cutter being removably and variably engaged to the press platen.