| 摘要 |
Roof trusses (2, 4, 6, 8) are fixed together by a snap-fit connection system. The roof truss assembly includes a first truss (2) including an aperture having an enlarged portion (26) and a slot portion (28) communicating with the enlarged portion and extending away from the enlarged portion in a slot direction and a second truss (4, 6) including a pin (22) having a neck portion (30) and a head portion (32). The enlarged portion (26) of the aperture is adapted to receive the head portion (32) of the pin (22) during converging relative movement of the trusses. Subsequent relative movement of the second truss (4, 6) in the slot direction causes the neck portion (30) of the pin (22) to be received in the slot portion (28) of the aperture whereat diverging relative movement of the trusses is prevented. The truss assembly further includes a locking member (24) for preventing reverse relative movement of the second truss (4, 6) in a direction opposite to the slot direction. <IMAGE> |
