| 摘要 |
Provided is a caliper extender ( 100 ), which fits over a tape measure blade ( 124 ), enabling accurate measurements to be taken of an inside dimension ( 142 ). Extender ( 100 ) slides along blade ( 124 ) and is positioned against one wall of the inside dimension ( 142 ). Blade ( 124 ) is then repositioned flat against extender ( 100 ) and a measurement reading is taken. A pointer ( 110 ) may also be incorporated into extender ( 100 ) to indicate a tape marking ( 202, 204, 206, 208 or 210 ) corresponding to an accurate measurement. In the alternative, a caliper extender ( 160 ) is incorporated into a tape measure ( 350 ) such that extender ( 160 ) can be disengaged from a casing ( 352 ) of tape measure ( 350 ), slid along a blade ( 190 ) and a measurement reading taken through a window ( 308 ) in a channel ( 304 ) through which blade ( 190 ) is installed.
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