(57) Abstract Objective The eye which it can correspond to the change of thickness of external wall sidingThe area component is offered. Constitution The joint which with person in charge stopping component 1 and cover component 2 is formedRegarding to the component, the person in charge stopping channel 12 of person in charge stopping component 1 phase to oppose, at the same timeAperture it forms with the inclined wall surface 14 which ahead one makes the narrow graduallyWith, possess the elastic bounce for the aperture the holding section 1 which is closedTo provide 3, in trail section 22 of other cover component 2 the Tip the narrowIt makes inserting section 23 and at the same time forming swelling section 24 on the base sideBeing something which it does, swelling section 23 of trail section 22 of cover component 2 To keep with opposition wall surface 14 of holding section 13, cover component 2 stopping arrivalIt does.
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