COVER MEMBER, IMAGE FORMATION DEVICE USING THE SAME, AND COVER MEMBER MANUFACTURING METHOD

• Main Authors: KASAMA HIROKI, TAKAHATA KAZUAKI, ENDO RIE, SHIBATA KAZUMASA, YOKOYAMA KATSUNORI, YAMAMOTO MASAMICHI
• Format: Patent
• Language: English; Japanese
• Published: 21.06.2018
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; BLASTING; CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOLOGRAPHY; LIGHTING; MAGNETOGRAPHY; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHOTOGRAPHY; PHYSICS; SHOCK-ABSORBERS; SOUND-PRODUCING DEVICES; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a cover member in which a thin and light-weight vibration damping sheet is not closely contact with an entire cover surface in a state of having no gap and which can reduce a radiation sound with a simple configuration, an image formation device using the cover member, and a cover member manufacturing method.SOLUTION: A cover member including an outer wall surface and an inner wall surface for covering an opening of an image formation device body includes: a vibration damping sheet facing the inner wall surface for damping vibration of the image formation device body; a fixing section for fixing the vibration damping sheet to the inner wall surface at a first position in a first direction; and a tensile force applying section for fixing the vibration damping sheet at a second position different from the first position in the first direction and applying tensile force to the vibration damping sheet without making the whole surface of the vibration damping sheet in close contact with the inner wall surface.SELECTED DRAWING: Figure 1 【課題】薄くて軽量の制振シートをカバー全面に隙間のない状態で密着させず、簡易な構成にて放射音を低減することができるカバー部材およびこれを用いた画像形成装置並びにカバー部材の製造方法を提供する。【解決手段】外壁面と内壁面を備え、画像形成装置本体における開口を覆うカバー部材であって、前記内壁面に対向し前記画像形成装置本体における振動を制振する制振シートと、前記制振シートを第１の方向における第１の位置で前記内壁面に固定する固定部と、前記制振シートを前記第１の方向における前記第１の位置と異なる第２の位置で固定すると共に、前記制振シートを前記内壁面に全面密着させることなく前記制振シートに張力を付与する張力付与部と、を有する。【選択図】図１