DAMPER FOR TELESCOPIC COVER

• Main Authors: KOIZUMI SHOTA, TAKAHASHI ISAMU, NONAKA KAZUHITO
• Format: Patent
• Language: English; Japanese
• Published: 26.11.2020
• Subjects: BLASTING; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

To provide a telescopic cover for reducing noise and vibration by a stopper instead of a prior rubber stopper.SOLUTION: A compression coil spring 15, as a damper in contraction, is detachably fitted to a standing plate or a bottom plate forming a telescopic cover, using a screw. Since the compression coil spring is detachably fitted using the screw, a termination of a coil of a compression coil spring bottom part is extended, a screw fastening seat in an almost circular shape is formed at the same phase as a bottom part, and at least two or more compression coil springs are fitted to one cover, and if a partner cover is contracted, an opposite side top surface of the bottom part comprising a fastening seat collides with other cover, for absorbing collision energy. In addition, for reducing whole dimension in contraction, a quadratic curve shape is formed in a manner in which a skirt of Mt.Fuji extends toward a bottom part side where the fastening seat of the compression coil spring is formed, therefore parts of coils on the upper part of the bottom part sequentially go down inward of the bottom part side in contraction.SELECTED DRAWING: Figure 6 【課題】従来のゴムストッパーに変わるストッパーにより騒音や振動を低減するテレスコピックカバーを提供する。【解決手段】テレスコピックカバーを構成する立て板や取付板に、圧縮コイルばね１５を、縮み時のダンパーとしてねじを用いて着脱可能に装着するようにした。ねじを用いて着脱可能にするため、圧縮コイルばね底部のコイルの終端を延長し、底部と同位相で略円形のねじ締結座を形成し、１枚のカバーに少なくとも２個以上複数個の前記圧縮コイルばねを取り付けるようにし、相手カバーが縮んだ時、締結座を設けた底部の反対側上面が他のカバーに衝突し、衝突のエネルギーを吸収するようにした。さらに、収縮時の全体寸法を小さくするため、圧縮コイルばねの締結座を形成した底部側に向かって富士山の裾野が広がるように二次曲線状にして、収縮時底部より上部のコイルの一部が底部側の内側に順次沈み込むようにした。【選択図】図６