发明授权
US5799959A Hand truck brake application system 失效
手动卡车制动应用系统

  • 专利标题: Hand truck brake application system
  • 专利标题(中): 手动卡车制动应用系统
  • 申请号: US706599
    申请日: 1996-09-05
  • 公开(公告)号: US5799959A
    公开(公告)日: 1998-09-01
  • 发明人: Joseph D. Krawczyk
  • 申请人: Joseph D. Krawczyk
  • 申请人地址: MI Pinconning
  • 专利权人: Magline, Inc.
  • 当前专利权人: Magline, Inc.
  • 当前专利权人地址: MI Pinconning
  • 主分类号: B62B5/04
  • IPC分类号: B62B5/04 B60T1/00
Hand truck brake application system
摘要:
A manually propelled, two-wheel supported hand truck for use in transporting products has a frame normally supported by the wheels in generally vertical inclination and comprises connected side rail members, and a fixed frame handle surface near its upper end. The frame supports a forwardly extending, load supporting nose plate. An axle, coupled to and extending crosswisely rearwardly of the frame journals the wheels. Supports on the frame side rail members journal a laterally extending pivotal brake applying rod having spaced apart brake shoes in a first position out of brake applying engagement with the wheels but aligned therewith, the rod being pivotal to move the shoes to a second position into braking engagement with the wheels. Fixed to the brake applying rod is a lever arm connected to a generally vertically extending rigid member. A mobile brake operating handle is mounted on the frame for movement relative to the fixed frame handle surface, the brake operating handle being connected with the rigid member to move it upwardly and downwardly and pivot the brake applying rod. A safety control member is fixed on the rod and is operative to cooperate with the frame to halt brake applying movement of the brake applying rod upon further movement of the rod beyond brake applying rotation.
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