Abstract: A pair of latch members 36R, 36L in a case 20C protrudes from an outer face of the case 20C by a spring 38 and when the case 20C is passed through a wall hole 22H, the latch members 36R, 36L are narrowed by an engagement between outer edge (guiding) slant face 36ROI, 36LOI and a wall hole 22H and after the case 20C has passed through the wall hole 22H, the latch members 36R, 36L are spread by a spring 38 so as to engage the engagement slant faces 36RLI, 36LLI with the wall hole 22H and also while fixing temporarily the case 22C to the wall 22 together with a flange 20FL of the case 22C. After that, a screw 32 is screwed to draw the nut 34 toward the flange 20FL and to engage securely the latch members 36R, 36L held to the nut 34 with the wall hole 22H to complete secure fixing of the case 20C.

Abstract: A pair of latch members 36R, 36L in a case 20C protrudes from an outer face of the case 20C by a spring 38 and when the case 20C is passed through a wall hole 22H, the latch members 36R, 36L are narrowed by an engagement between outer edge (guiding) slant face 36ROI, 36LOI and a wall hole 22H and after the case 20C has passed through the wall hole 22H, the latch members 36R, 36L are spread by a spring 38 so as to engage the engagement slant faces 36RLI, 36LLI with the wall hole 22H and also while fixing temporarily the case 22C to the wall 22 together with a flange 20FL of the case 22C. After that, a screw 32 is screwed to draw the nut 34 toward the flange 20FL and to engage securely the latch members 36R, 36L held to the nut 34 with the wall hole 22H to complete secure fixing of the case 20C.

Abstract: Provided is a hook which is capable of holding multiple objects or an object having a large size of width by efficiently using a space inside the hook, reliably preventing the hanged object from dropping, and allowing the hanged object to be taken out easily. A hook body has a latch that locks an arm biased toward an outside of the hook body by an arm biasing mechanism, and regulates a displacement of the arm, thereby closing an opening portion. While the latch is biased by a latch biasing mechanism so as to face the opening portion and be present at an arm regulating position for locking the arm, the latch is displaced from the arm regulating position against a biasing force of the latch biasing mechanism so as to unlock the arm.

Abstract: Provided is a hook which is capable of holding multiple objects or an object having a large size of width by efficiently using a space inside the hook, reliably preventing the hanged object from dropping, and allowing the hanged object to be taken out easily. A hook body has a latch that locks an arm biased toward an outside of the hook body by an arm biasing mechanism, and regulates a displacement of the arm, thereby closing an opening portion. While the latch is biased by a latch biasing mechanism so as to face the opening portion and be present at an arm regulating position for locking the arm, the latch is displaced from the arm regulating position against a biasing force of the latch biasing mechanism so as to unlock the arm.

Abstract: One end portion and the other end portion of the first link 51 are respectively rotatably connected to a first housing side attachment member 11 and a second housing side attachment member 21. Upper and lower side portions of one end portion of the second link 61 are respectively rotatably connected to the first and second housing side attachment members 11, 21. Upper and under side portions of the other end portion of the second link 61 are respectively rotatably connected to the first and second door side attachment members 31, 41. One end portion and the other end portion of the third link 71 are respectively rotatably connected to the second housing side attachment member 21 and the second door side attachment member 41. The first, second and third links 51, 61, 71 are arranged to be spaced from one another in the direction of rotation axes thereof.

Abstract: One end portion and the other end portion of the first link 51 are respectively rotatably connected to a first housing side attachment member 11 and a second housing side attachment member 21. Upper and lower side portions of one end portion of the second link 61 are respectively rotatably connected to the first and second housing side attachment members 11, 21. Upper and under side portions of the other end portion of the second link 61 are respectively rotatably connected to the first and second door side attachment members 31, 41. One end portion and the other end portion of the third link 71 are respectively rotatably connected to the second housing side attachment member 21 and the second door side attachment member 41. The first, second and third links 51, 61, 71 are arranged to be spaced from one another in the direction of rotation axes thereof.