To provide a stemple simply and easily installed between furniture and a ceiling, having a high support strength and strut strength, having a superior seismic resistance and having an aesthetic appearance. 家具と天井等の間に簡単且つ容易に設置でき、支持強度及び突張強度が強く耐震性にも優れ、また美的外観がよい突張具を提供する。 - 特許庁