PIVOT HINGE, MOUNTING SEAT FOR PIVOT HINGE, AND DOOR SYSTEM

• Main Authors: YAMANE MOTOHARU, MORITA NANA
• Format: Patent
• Language: English; Japanese
• Published: 07.10.2022
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS; KEYS; LADDERS; LOCKS; SAFES; WINDOW OR DOOR FITTINGS

To prevent an engagement state between an annular groove of a pivot shaft and a fixing screw from being easily released.SOLUTION: A pivot hinge comprises a shaft member attached to one of a door 1 or a door frame 2a and a bearing member attached to the other of the door 1 or the door frame 2a. The shaft member is provided with: a pivot shaft 31 having an annular groove 54; a mounting seat attached to one of the door 1 or the door frame 2a and having a main hole into which the pivot shaft 31 is screwed and a horizontal hole communicating with the main hole; and a fixing screw 32 screwed into the horizontal hole and engaged with the annular groove 54 to restrict the vertical movement of the pivot shaft 31. The bearing member has a bearing hole for supporting the pivot shaft 31. A center line of the horizontal hole is offset with respect to a center line of the main hole.SELECTED DRAWING: Figure 3 【課題】ピボット軸の環状溝と止めネジとの間の係合状態が容易に解除されないようにする。【解決手段】扉１又は扉枠２ａの一方に取り付けられる軸部材と、扉１又は扉枠２ａの他方に取り付けられる軸受け部材と、を備えたピボットヒンジであって、軸部材は、環状溝５４を有するピボット軸３１と、扉１又は扉枠２ａの一方に取り付けられ、ピボット軸３１が螺入される主孔及び主孔に連通する横孔を有する取り付け座と、横孔に螺入され、環状溝５４に係合してピボット軸３１の上下方向の移動を規制する止めネジ３２と、を備え、軸受け部材は、ピボット軸３１を支持する軸受け孔を有し、横孔の中心線は、主孔の中心線に対してオフセットされている。【選択図】図３