| 摘要 |
"On the longitudinal sides situated in the centre, the hinge parts 4, 5 have upper and lower receiving portions 6 and 7 respectively having cylindrical longitudinal bores 8 and 9 respectively for a hinge pin 10 . The hinge pin 10 is a cylindrical metal pin 11 having a circumferential projection 12 between its ends. The circumferential projection 11 on the hinge pin 10 is inserted as a good fit in the cylindrical depressions 12 a, 13 in the receiving portions 6, 7 , which depressions 12, 13 are formed by circumferential rims in the longitudinal bores 8, 9 in the receiving portions 6, 7 , with the metal pin extending into the receiving portions through one bore in each case. The longitudinal bores 8, 9 in the receiving portions 6, 7 are closed off by the respective plugs 14, 15 which have cylindrical bores 16, 17 into which the metal pin 11 forming the hinge pin 10 extends". |
