公开(公告)号：US6032522A

公开(公告)日：2000-03-07

申请号：US136026

申请日：1998-08-18

申请人： Alfred L. Clark ,  Frank S. Barnes ,  Richard Frey ,  Tom Gormley

发明人： Alfred L. Clark ,  Frank S. Barnes ,  Richard Frey ,  Tom Gormley

IPC分类号： G01L17/00 ,  E01C23/00 ,  G01G3/14 ,  G06K9/74

CPC分类号： G01L17/00

摘要： A vehicle tire inspection apparatus includes a flat plate, a flexible bladder containing a quantity of fluid, and transducers on the plate. The plate is made of a transparent yieldable resilient bendable material capable of transmitting an inflated vehicle tire footprint and of undergoing a deflection in response to the supported weight on the tire applied thereon. The bladder is supported on the top side of the plate and has an upper opaque portion of a first color, a lower transparent portion and an enclosed interior cavity. The fluid contained within the cavity is of a second color different from the first color of the upper bladder portion. The fluid is displaceable within the bladder as the upper bladder portion is forced toward the lower bladder portion when the tire is applied upon the upper bladder portion so as to create an image of the footprint of the tire viewable on the bottom side of the plate by contrast between the second color of the fluid viewable where a tread of the tire does not press the upper bladder portion against the lower bladder portion on the top side of the plate and the first color of the opaque material of the upper bladder portion viewable where the tread of the tire presses the upper bladder portion against the lower bladder portion on the top side of the plate. The transducers are attached to the bottom side of the plate and undergo deformations proportional to the deflection of the plate and produce electrical signals proportional to the deformations.

摘要翻译： 车辆轮胎检查装置包括平板，包含一定量的流体的柔性气囊和板上的换能器。 该板由透明的可屈曲的弹性可弯曲材料制成，其能够传递充气的车辆胎面足迹并且响应于施加在其上的轮胎上的支撑重量而经历挠曲。 囊被支撑在板的顶侧上，并且具有第一颜色的上部不透明部分，下部透明部分和封闭的内部空腔。 包含在腔内的流体具有与上囊部分的第一颜色不同的第二颜色。 当轮胎被施加到上囊状部分上时，当膀胱部分被迫向下囊状部分时，流体可以在囊内移动，以便通过以下方式产生可在板的底侧观察的轮胎的足迹的图像： 流体可见的第二颜色之间的对比度，其中轮胎的胎面不将上部囊部分压靠在板的顶侧上的下部囊部分和上部囊部分的不透明材料的第一颜色，其中， 轮胎的胎面将上部囊部分压靠在板的顶侧上的下部囊部分上。 传感器连接到板的底侧，并经历与板的偏转成比例的变形，并产生与变形成比例的电信号。