| 摘要 |
<p>A joining member (1) includes an air-permeable membrane (11), a first adhesive layer (21) provided on a side of a first principal surface (11a) of the air-permeable membrane (11), a second adhesive layer (22) provided on a side of a second principal surface (11b) of the air-permeable membrane (11), an opening (21h) formed in the first adhesive layer (21), and a vent groove (1d) formed through the second adhesive layer (22) or between the second adhesive layer (22) and the air-permeable membrane (11). The vent groove (1d) includes a first portion (D1) extending from an outer peripheral edge of the joining member (1) to a region corresponding to the opening (21h) and a second portion (D2) to which the second principal surface (11b) of the air-permeable membrane (11) is exposed in the region corresponding to the opening (21h). The vent groove (1d) provides an air passage (1v) between a housing (31) and a support body (32) to communicate an inside of the housing (31) and an outside of the housing (31) when the housing (31) is fixed to the support body (32) using the joining member (1).</p> |
