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公开(公告)号:US10246017B2
公开(公告)日:2019-04-02
申请号:US15469728
申请日:2017-03-27
申请人: MURAKAMI CORPORATION
发明人: Naomi Sugimura , Yasushi Kobayashi
摘要: This invention relates to a view angle adjustment mechanism. A view element tilting section is tiltably supported by the tilting support section. Upon a motor being driven, a nut member rotates together with a gear member, the nut member rises/falls along a male thread member, whereby the view element tilting section is tilted. At a barrel of the nut member, a protrusion is formed. The protrusion is fitted in a groove of the gear member and causes the nut member to rotate together with the gear member. At the tilting support section, a protrusion abutment portion is formed. When the nut member moves in a direction in which the nut member comes off from the male thread member, the protrusion abutment portion abuts on the protrusion and thereby prevents movement of the nut member.
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公开(公告)号:US10464487B2
公开(公告)日:2019-11-05
申请号:US15469802
申请日:2017-03-27
申请人: MURAKAMI CORPORATION
发明人: Naomi Sugimura , Yasushi Kobayashi
摘要: This invention relates to a view angle adjustment mechanism that causes a view element tilting section holding a view element to be supported by a tilting support section via a plurality of concentric pivots having different diameters, to perform view angle adjustment. An inner pivot is assembled by forcible fitting using elasticity of either or both of a pivot convex and a pivot concave without screw fastening. An outer pivot includes a plurality of elastic pieces disposed at a plurality of positions in a circumferential direction of a curved surface of either or each of both of an outer-pivot convex surface and an outer-pivot concave surface. The outer pivot is assembled by the forcible fitting in the inner pivot. The assembly causes the plurality of elastic pieces to elastically abut on an opposed curved surface.
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公开(公告)号:US10589682B2
公开(公告)日:2020-03-17
申请号:US15469778
申请日:2017-03-27
申请人: MURAKAMI CORPORATION
发明人: Naomi Sugimura , Yasushi Kobayashi
摘要: This invention relates to a view angle adjustment mechanism that causes a view element tilting section holding a view element to be supported by a tilting support section via a forcible fitting-type pivot to perform view angle adjustment. A pivot is assembled by forcible fitting between a pivot convex and a pivot concave. The pivot convex includes a spherical surface. The pivot concave includes a surface formed by arranging two conical surfaces so as to face in respective directions opposite to each other along a center axis X of the pivot concave. The spherical surface of the pivot convex is inscribed in the two conical surfaces of the pivot concave.
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