| 摘要 |
A boot structure fitting into an axial component (12) to protect from wrong environment including outside dust. Said boot (13) has a pair of annular grooves (21, 21) and an annular lip (22) between said pair of annular grooves (21, 21) on inner surface (20) of said boot (13). Said annular lip (22) is formed so that the annular lip top is not projected from inner surface (20) to centerline of the boot (13). An annular protuberance means (23) between said boot (13) and clamping means (14), through which clamping force from said clamping means (14) is exerted in concentration to said annular lip (22) so that said annular lip (22) is elastically deformed and pushed to outside of said axial component (12). Therefore, the axial component (12) enables to be inserted into the boot (13) without interference between the annular lip (22) and the axial component (12). Furthermore, the annular lip (22) becomes to be free from damage by interference between the annular lip (22) and the axial component (12). <IMAGE> |
