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Invention Grant
US08776836B2 Linearly retractable pressure hose structure 有权
线性伸缩压力软管结构

Linearly retractable pressure hose structure
Abstract:
Hose (70) has a biasing spring (76) extends along the full length. Spring (76) is covered with hose cover material (72) on the outside and hose support layer (74) and hose sealing layer (72) on the inside to form a sealed hose. The invention comprises the improvement of the hose body (layers (72), (74) and (75)) by defining the layers as bowed inward radially between the individual spring coils to create a helical indentation (74b) around hose (70). This helical indentation (74b) causes the hose body materials (layers (72), (74) and (75)) move inward radially when hose (70) is retracted and the coils of spring (76) are forced close together longitudinally. Thus, layers (72), (74) and (75) are folded substantially with spring (76) when retracted, greatly reducing the volume of hose (70) in its retracted position and substantially protecting (72), (74) and (75) from damage by abrasion an puncture.
Abstract(Chinese):

软管（70）具有沿整个长度延伸的偏置弹簧（76）。 弹簧（76）被外部的软管盖材料（72）和内部的软管支撑层（74）和软管密封层（72）覆盖以形成密封软管。 本发明包括通过将各层弹性线圈之间径向向内弯曲的层限定在软管体（层（72），（74）和（75））上，以在软管（70）周围产生螺旋形凹口（74b）。 当软管（70）缩回并且弹簧（76）的线圈被强制靠近在一起时，该螺旋形凹口（74b）使软管主体材料（层（72），（74）和（75））向内径向移动。 因此，当缩回时，层（72），（74）和（75）基本上用弹簧（76）折叠，大大减少了软管（70）处于其缩回位置的体积并且基本上保护（72），（74）和（74）和 75）由磨损造成的穿刺伤害。

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