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    • 2. 发明申请
    • Pressure indicating structure
    • 压力指示结构
    • US20060137478A1
    • 2006-06-29
    • US11025566
    • 2004-12-29
    • Ronald JohanssonJames Bries
    • Ronald JohanssonJames Bries
    • G01L1/04
    • G01L1/04A47G1/175G01L1/06G01L5/0038
    • A pressure indicating structure comprising (1) a translucent or transparent sheet having opposite first and second major surfaces, reflective structure defining at least a portion of that second surface for reflecting back through the first surface at an observation angle in a predetermined range of observation angles a visually significant amount of the light entering the sheet through its first surface, that reflective structure comprising a multiplicity of peak portions and recessed portions having recessed surface portions of the second surface that define recesses from the peak portions; and (2) a deformable layer comprising pressure sensitive adhesive, the deformable layer having opposite major surfaces with one of those surfaces defined by the pressure sensitive adhesive being along the second surface of the sheet adjacent and over the peak portions of the reflective structure and spaced from the recessed surface portions of the second surface. The shape and size of the peak portions and recessed portions of the reflective structure and the deformability of the deformable layer are selected or adapted so that a predetermined pressure is needed between the first surface of the sheet and the surface of the deformable material opposite the reflective structure to deform the pressure sensitive adhesive of the deformable layer adjacent the reflective structure into the recesses to wet part or all of the recessed surface portions of the reflective structure. Such wetting of part or all of the recessed surface portions of the reflective structure causes light to pass through the second surface along the wetted recessed surface portions instead of being reflected, thereby causing significant visually observable changes in the appearance of the reflective structure at an observation angle in the range of observation angles to indicate that the predetermined pressure has been applied.
    • 一种压力指示结构,包括(1)具有相反的第一和第二主表面的半透明或透明片材,反射结构限定该第二表面的至少一部分,用于以预定观察角度范围内的观察角度反射穿过第一表面 通过其第一表面进入片材的视觉上大量的光,该反射结构包括多个峰部分和具有限定从峰部分的凹部的第二表面的凹表面部分的凹陷部分; 和(2)包含压敏粘合剂的可变形层,所述可变形层具有相反的主表面,所述压敏粘合剂限定的那些表面之一沿着与所述反射结构的峰部相邻并且超过所述反射结构的峰部的所述片的第二表面, 从第二表面的凹入表面部分。 反射结构的峰部分和凹陷部分的形状和尺寸以及可变形层的可变形性被选择或适应,使得在片材的第一表面和可反射的材料的表面之间需要预定的压力 将与反射结构相邻的可变形层的压敏粘合剂变形成凹部的结构,以润湿反射结构的部分或全部凹陷表面部分。 这种反射结构的凹部表面部分或全部的这种润湿使得光沿着湿润的凹面部分通过第二表面而不是被反射,从而在观察时引起反射结构的外观的显着的视觉上可观察的变化 在观察角度的范围内的角度,以指示已经施加了预定压力。