SPEED ADJUSTMENT DEVICE
To provide a speed adjustment device which can adjust a moving speed of a cord related to opening and closing of a shield in a shading device, and enables quality maintenance such as failure prevention and cord friction prevention in making braking force act to the movement of the cord.SOLUTION: A s...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a speed adjustment device which can adjust a moving speed of a cord related to opening and closing of a shield in a shading device, and enables quality maintenance such as failure prevention and cord friction prevention in making braking force act to the movement of the cord.SOLUTION: A speed adjustment device 6 of this invention comprises: a brake section 6a which can adjust moving speeds of cords (for example, lifting cords C1, C2, C3) related to opening and closing of a shield, and makes braking force act to the movement of the cords; and overload limitation means (for example, a serration structure which can transmit and separate a lower end portion 641a of a roller axis 641 and an upper end portion 644b of a gear axis 644a mutually) which limits overload of the brake section 6a when the moving speeds of the cords exceed a predetermined setting speed.SELECTED DRAWING: Figure 8
【課題】遮蔽装置における遮蔽材の開閉に係るコードの移動速度を調整可能とし、コードの移動に対し制動力を作用させる際の故障予防、コード摩耗防止などの品質維持を可能とする速度調整装置を提供する。【解決手段】本発明の速度調整装置6は、遮蔽材の開閉に係るコード(例えば昇降コードC1,C2,C3)の移動速度を調整可能とし、当該コードの移動に対し制動力を作用させるブレーキ部6aと、当該コードの移動速度が所定の設定速度を超える時に、ブレーキ部6aの過負荷を制限する過負荷制限手段(例えば、ローラー軸641の下端部641aとギヤ軸644aの上端部644bとを互いに伝達分離可能としたセレーション構造)と、を備える。【選択図】図8 |
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