| 摘要 |
An arrangement for a grandstand having a series of sections, each section having a pair of sloping joists each provided with a number of vertical seating beam pillars and a number of walkways between the joists. Fastening and securing devices are provided at an upper part of each seating beam pillar. The fastening devices are provided with first locking devices capable of receiving second locking devices provided at the ends of seating beams intended to be mounted between two opposite seating beam pillars on the joists. One of the locking means has a resilient element. The first locking device is provided with a female member and the second locking device is provided with a male member. The resilient element allows connection of the male and female members with one another to lock the members in their connected positions. The resilient element has at least one tongue provided in connection with one of the members. The second member is provided with an abutment, and the tongue springs aside as the members are attached to each other and springs back into a position of attachment and contacts the abutment. The locking device allowing the seating beams to be attached to but not removed from the seating beam pillars without the use of tools.
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