Hinges and door mechanisms

Abstract

The present invention provides a hinge and door mechanism that can improve rigidity by being installed on a large and heavy door that requires airtightness and is difficult to adjust, making adjustment during construction easier and improving operability during opening and closing. The hinge (1) of the present invention is characterized in that the hinge (1) includes a fulcrum shaft (2), a long adjustment shaft (9) and an adjustment main body fixing portion (45), the fulcrum shaft (2) is formed as a long strip that is approximately the same height as the door (81) and extends up and down, the adjustment shaft (9) is arranged adjacent to and parallel to the fulcrum shaft (2) with a length approximately the same as that of the fulcrum shaft (2), and the adjustment main body fixing portion (45) has a connecting rod adjustment portion (45) in the main body fixing portion (12) that can adjust the connecting rod portion (32) to an arbitrary angle relative to the door side fixing portion (22). 6), the main body fixing portion (12) includes: a frame side fixing portion (13), the fulcrum shaft (2) is stopped at the frame side fixing portion (13), and is fixed to the frame (111) side; a door side fixing portion (22), the adjustment shaft (9) is pivotally stopped at the door side fixing portion (22), and is fixed to the door (81) side; and a connecting rod portion (32), the fulcrum shaft (2) and the adjustment shaft (9) are axially passed through the connecting rod portion (32), and the connecting rod portion (32) connects the frame side fixing portion (13) and the door side fixing portion (22), and the hinge (1) has at least two or more main body fixing portions (45) for adjustment.

Description

Technical Field

[0001] The present invention relates to a hinge and door mechanism that can be installed on a large and heavy door that requires airtightness and is difficult to adjust, thereby facilitating adjustment during construction and improving operability during opening and closing. Background Art

[0002] In the past, when heavy rains caused disasters such as floods, high tides, and tsunamis, if entrances and exits, as well as passageways, that serve as openings inside and outside buildings were flooded, water would seep into the buildings. This could make life and activities in residential spaces and public facilities impossible, while stores and warehouses could suffer significant damage due to the waterlogging of displayed goods and inventory.

[0003] Furthermore, in recent years, concentrated, torrential rains, often occurring in short bursts regardless of region, have become more frequent due to climate change. In particular, flooding of critical equipment, such as electrical and machinery rooms located at power plants and their transit bases, which are at the heart of infrastructure and house electrical equipment and machinery that control the supply of electricity, can lead to power outages. This not only significantly impacts daily life but also poses a significant obstacle to subsequent repair work, making flood prevention measures a pressing issue.

[0004] Furthermore, in many cases, such electrical rooms and machine rooms require large doors for moving equipment in and out. Considering airtightness and other sealing properties, research is underway to use biaxial hinges to apply force to the door frame with as uniform a pressure as possible.

[0005] However, there is a problem that since a large door is very heavy, it is not easy to manually close the door using a double-axis hinge with an unstable movable area to the door frame accurately with uniform pressure. Figure 8 As shown in A, even if multiple double-axis hinges H are arranged on the hanging base side, since each hinge H is individually connected to the frame 111 and the door P, it is impossible to fully ensure the rigidity of supporting the door P, and the front end side of the door is likely to drop relative to the hanging base side (F).

[0006] Furthermore, when such a large door P is installed in a building or the like, it is extremely difficult to adjust the inclinations of the axes of the plurality of hinges H so that the door P opens and closes smoothly without load, and the complexity of the construction cannot be ignored.

[0007] Under such circumstances, for example, in Patent Document 1 Figure 1In the double-axis hinge disclosed by others, the adjustment member 16 is constructed to be able to move forward and backward freely in the direction of the door 20 via the threaded hole 6a formed in the connecting wing member 5 that connects the frame 1 and the door 20, and the adjustment member 16 is used to reduce the movable area of ​​the door 20 to a predetermined range, making it easy to manually close the door to the door frame with approximately uniform pressure as much as possible.

[0008] In addition, in Patent Document 1 Figure 6 The disclosed double-axis hinge is constructed such that the two ends of a first pivot 9 extending vertically are supported by a fixed wing member 2 connected to a frame 1 on the side of the hanging base, so that the first pivot 9 is passed through one side of each of a plurality of connecting wing members 5, and each individual second pivot 14 is pivotally stopped by a plurality of movable wing members 11 whose axes pass through the other side of the connecting wing members 5, and each individual second pivot 14 is connected to the door 20 by the movable wing member 11, thereby improving the rigidity for supporting the door 20, and furthermore, adjusting the inclination of the axis of the hinge becomes easy.

[0009] Prior art literature

[0010] Patent Literature

[0011] Patent Document 1: Japanese Patent Application Laid-Open No. 2008-303532 Summary of the Invention

[0012] Problems to be solved by the invention

[0013] Indeed, the biaxial hinge of Patent Document 1 is excellent in the following aspects: as long as the movable area of ​​the door can be reduced to a predetermined range, it is easy to manually close the door to the door frame with approximately uniform pressure as much as possible; Figure 6 In the hinge shown, by forming the first pivot axis with a single shaft, the rigidity of the door support can be increased and the downward movement of the front end of the door can be suppressed. Furthermore, the inclination adjustment of the hinge axis becomes relatively easy.

[0014] However, even if the movable area of ​​the door can be reduced by using an adjustment component, the door will still rotate from the second pivot. Therefore, since it is a dual-axis type, the unstable movable area will not be eliminated as the door rotates from the first pivot. It is not easy to manually close a large door accurately with roughly uniform pressure.

[0015] In addition, for a first pivot, only its two ends are connected to the frame on the hanging base side by fixed wing members. Relative to the first pivot, an independent movable wing member is connected to the door via a plurality of connecting wing members. Therefore, the long first pivot is easy to deform as a whole. Moreover, the door on the hanging base side is in a state of being independently connected by a single hinge, so the rigidity for supporting the door is not significantly improved.

[0016] Furthermore, even if the multiple movable wing members that individually stop the second pivot are connected to the first pivot via the connecting wing member, there is still a complicated operation of adjusting the subtle inclination of each second pivot when connecting the movable wing member to the door in order to enable the door to open and close smoothly without load during construction.

[0017] The present invention is completed in view of the above situation and provides a hinge and door mechanism. By being installed on a large and heavy door that requires airtightness and is difficult to adjust, the hinge and door mechanism can increase rigidity, facilitate adjustment during construction, and improve operability during opening and closing.

[0018] Solutions for solving problems

[0019] In order to achieve the above purpose, the present invention provides the following technical solutions.

[0020] In the invention of technical solution 1, it is intended to provide a hinge, that is, a hinge characterized in that the hinge includes a fulcrum axis, a long adjustment axis and an adjustment main body fixing portion, the fulcrum axis is formed into a long strip approximately the same height as the door and extends up and down, the adjustment axis is adjacent to and parallel to the fulcrum axis with a length approximately the same as that of the fulcrum axis, the adjustment main body fixing portion has a connecting rod adjustment portion in the main body fixing portion that can adjust the connecting rod portion to approximately any angle relative to the door side fixing portion, and the main body fixing portion includes : A frame side fixing portion, wherein the fulcrum shaft is stopped at the frame side fixing portion and is fixed to the frame side; the door side fixing portion, wherein the adjustment shaft is stopped at the door side fixing portion and is fixed to the door side; and the connecting rod portion, wherein the fulcrum shaft and the adjustment shaft pass through the connecting rod portion and connect the frame side fixing portion and the door side fixing portion, the connecting rod adjustment portion includes adjustment components respectively arranged on the left and right sides of the adjustment shaft so as to be freely advanced and retreated along the door direction, and the hinge has at least two or more of the adjustment main body fixing portions.

[0021] The invention according to claim 2 is characterized in that, in addition to the hinge according to claim 1 , the main body fixing portion for adjustment is provided at least at both ends of the hinge, and the main body fixing portion is provided in a gap therebetween.

[0022] In the invention of technical solution 3, based on the hinge described in technical solution 1, it is characterized in that the link adjustment part is constructed so that the front end portion of the adjustment member can freely abut against the front side surface of the link part through the forward and backward operation of the adjustment member.

[0023] The invention according to claim 4 is intended to provide a door mechanism in which the hinge according to claim 1 is used for a swing door.

[0024] In the invention according to claim 5 , the door mechanism described in claim 4 is constituted by the door that can be divided vertically.

[0025] Effects of the Invention

[0026] According to the invention described in technical solution 1, the hinge includes a fulcrum axis, a long adjustment axis and an adjustment main body fixing part, the fulcrum axis is formed as a long strip approximately the same height as the door and extending up and down, the adjustment axis is adjacent to and parallel to the fulcrum axis with approximately the same length as the fulcrum axis, the adjustment main body fixing part has a connecting rod adjustment part in the main body fixing part that can adjust the connecting rod part to approximately any angle relative to the door side fixing part, the main body fixing part includes: a frame side fixing part, the fulcrum axis is stopped at the frame side fixing part, and it is fixed to the frame side; a door side fixing part, the adjustment axis is stopped at the door side fixing part, and it is fixed to the door side; and a connecting rod part, the fulcrum axis and the adjustment axis pass through the connecting rod part, and It connects the frame side fixing part and the door side fixing part, and the connecting rod adjustment part includes adjustment components that are respectively arranged on the left and right sides of the adjustment axis so as to be able to move forward and backward freely in the door direction. The hinge has at least two or more adjustment main body fixing parts. Thus, during the initial adjustment, the door side fixing part is made to be able to rotate freely around the adjustment axis and the door is pressed toward the frame side to be closed with approximately uniform pressure. On this basis, the rotation of the door side fixing part starting from the adjustment axis is roughly fixed by the connecting rod adjustment part. Thus, while having two axes, only the fulcrum axis can contribute to the rotation of the door. Therefore, the movable area is unified when in use, and even large doors can be easily and accurately closed manually with approximately uniform pressure.

[0027] Furthermore, the long fulcrum shaft and the adjustment shaft are arranged along the longitudinal direction of the hanging base on the frame side and the door side, thereby supporting the door in an integrated manner, thereby significantly improving the overall rigidity.

[0028] Furthermore, all the connecting rod parts are made into an integrated structure connected to the same fulcrum axis and adjustment axis, thereby greatly reducing the complexity of adjusting the inclination of each of the two axes during construction, and can easily perform adjustment operations for allowing the door to open and close smoothly without load. Moreover, the connecting rod adjustment part includes adjustment components that are respectively arranged on the left and right sides of the adjustment axis so as to be able to move forward and backward freely in the direction of the door. Therefore, the rotation of the door side fixing part starting from the adjustment axis can be reliably and roughly fixed with a simple structure.

[0029] According to the invention described in claim 2, the main body fixing portions for adjustment are provided at least at both ends of the hinge, and the main body fixing portion is provided in the gap therebetween, thereby further improving the overall rigidity.

[0030] According to the invention described in Technical Solution 3, the connecting rod adjustment portion is constructed so that the front end portion of the adjustment member can freely abut against the front side surface of the connecting rod portion through the forward and backward operation of the adjustment member. Thus, an adjustment main body fixing portion having a connecting rod adjustment portion can be easily constructed with the same main body fixing portion as a base, and the hinge can be manufactured inexpensively.

[0031] According to the invention described in Technical Solution 4, by using the door mechanism of the swing door using the above-mentioned hinge, the door can be maintained at high rigidity. Therefore, even for a large door, the axis will not shift after construction, and the front end of the door will not drop. The door can be opened and closed smoothly without load. Furthermore, the operability during opening and closing is as simple as that of a door composed of a single-axis hinge, and it can be easily and accurately closed manually with approximately equal pressure, thereby providing a door mechanism with higher airtightness.

[0032] According to the invention described in technical solution 5, by using the above-mentioned hinges to form a door mechanism formed by a swing door that can be freely divided in the upper and lower directions, it is possible to provide a door mechanism that can be easily constructed by dividing and moving the door in even when a large door cannot be moved in unchanged due to the door installation environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] [ Figure 1 ] Figure 1 It is a perspective explanatory diagram showing the surface of a door mechanism including the hinge according to the present embodiment.

[0034] [ Figure 2 ] Figure 2 It is a perspective explanatory diagram showing the back side of a door mechanism including the hinge according to the present embodiment.

[0035] [ Figure 3 ] Figure 3 It is a partially enlarged perspective view showing the upper side of the hinge according to this embodiment.

[0036] [ Figure 4 ] Figure 4 It is an exploded perspective view showing a part of the structure of the hinge according to this embodiment.

[0037] [ Figure 5 ] Figure 5 It is a partial front perspective view showing the upper side of the hinge according to this embodiment.

[0038] [ Figure 6 ] Figure 6 It is along Figure 5 Cross-sectional view along line AA.

[0039] [ Figure 7 ] Figure 7 A is Figure 6 A simplified cross-sectional view of Figure 7 B. Figure 7 C is changed Figure 6 A simplified cross-sectional view showing the angle of the connecting rod.

[0040] [ Figure 8 ] Figure 8 A is a simplified front view showing the surface of a conventional door mechanism having a biaxial hinge. Figure 8 B is a simplified front view showing the surface of a door mechanism including the hinge according to the present embodiment.

[0041] [ Figure 9 ] Figure 9 These are a simplified front view and a simplified cross-sectional view showing the surface of another door mechanism including the hinge according to the present embodiment. DETAILED DESCRIPTION

[0042] The main purpose of the hinge of the present invention is characterized in that the hinge includes a fulcrum axis, a long adjustment axis and an adjustment main body fixing part, the fulcrum axis is formed as a long strip approximately the same height as the door and extending up and down, the adjustment axis is adjacent to and parallel to the fulcrum axis with approximately the same length as the fulcrum axis, the adjustment main body fixing part has a connecting rod adjustment part in the main body fixing part that can adjust the connecting rod part to approximately any angle relative to the door side fixing part, the main body fixing part includes: a frame side fixing part, the fulcrum axis is stopped at the frame side fixing part, and it is fixed to the frame side; a door side fixing part, the adjustment axis is stopped at the door side fixing part, and it is fixed to the door side; and a connecting rod part, the fulcrum axis and the adjustment axis pass through the connecting rod part, and it connects the frame side fixing part and the door side fixing part, and the hinge has at least two or more adjustment main body fixing parts. That is, the present invention seeks to provide a hinge in which, during initial adjustment, the door side fixing portion is made to be able to rotate freely around the adjustment axis and the door is pressed toward the frame side to be closed with approximately uniform pressure. On this basis, the rotation of the door side fixing portion starting from the adjustment axis is approximately fixed by using a connecting rod adjustment portion. Thus, while having two axes, only the fulcrum axis can contribute to the rotation of the door. Therefore, the movable area is unified during use, and even large doors can be easily and accurately closed manually with approximately uniform pressure.

[0043] Hereinafter, one embodiment of the hinge 1 and door mechanisms D1 and D2 of the present invention will be described with reference to the accompanying drawings. In addition, in this description, identical or bilaterally symmetrical structures and components are generally denoted by the same reference numerals, and only one of the left and right sides will be described, with the description of the other side omitted as appropriate.

[0044] In this description, the front surface 82 of the door 81 indicates the outside of the building, and the back surface 87 of the door 81 indicates the inside of the building.

[0045] like Figure 1As shown, the hinge 1 of the embodiment of the present invention includes a fulcrum shaft 2, a long adjustment shaft 9 and an adjustment main body fixing portion 45. The fulcrum shaft 2 is formed into a long strip that is approximately the same height as the door 81 and extends vertically. The adjustment shaft 9 is arranged adjacent to and parallel to the fulcrum shaft 2 with a length approximately the same as that of the fulcrum shaft 2. The adjustment main body fixing portion 45 has a connecting rod adjustment portion in the main body fixing portion 12 that can adjust the connecting rod portion 32 to an arbitrary angle relative to the door side fixing portion 22. Part 46, the main body fixing part 12 includes: a frame side fixing part 13, the fulcrum shaft 2 is stopped at the frame side fixing part 13, and it is fixed to the frame 111 side; a door side fixing part 22, the adjustment shaft 9 is stopped at the door side fixing part 22, and it is fixed to the door 81 side; and a connecting rod part 32, the fulcrum shaft 2 and the adjustment shaft 9 shaft pass through the connecting rod part 32, and it connects the frame side fixing part 13 and the door side fixing part 22, the hinge 1 has at least two or more adjustment main body fixing parts 45.

[0046] In addition, at least the two ends of the hinge 1 are provided with an adjustment body fixing portion 45, and the gap between them is provided with a body fixing portion 12. Furthermore, the link adjustment portion 46 includes an adjustment member 50 that is arranged to be freely advanced and retreated along the door 81 direction on the left and right sides of the adjustment shaft 9, and as Figure 6 As shown, the link adjustment portion 46 is configured such that the front end portion of the adjustment member 50 can freely come into contact with the front side surface 35 of the link portion 32 by the forward and backward operation of the adjustment member 50 .

[0047] Regarding the hinge 1 constructed as described above, as a door mechanism D1, for example, Figure 1 It is used in the swing door shown.

[0048] Specifically, if Figure 1 、 Figure 2 As shown, an opening is provided in a portion of a frame 111 such as a wall constituting a building, and the hinge 1 of this embodiment is provided on the surface 82 of the door 81 for closing the opening and the surface 112 of the frame 111 and connected to each other, thereby configuring the opening to be opened and closed freely with the hinge 1 as the starting point.

[0049] In addition, in this embodiment, description is made using the hinge 1 including four adjustment main body fixing portions 45 and three main body fixing portions 12 with respect to the fulcrum shaft 2 and the adjustment shaft 9 .

[0050] In addition, a convex portion 88 (also see the convex portion 88) having a triangular shape in cross-sectional view is formed on the outer peripheral edge of the back surface 87 of the door 81. Figure 6 ) is formed in the shape of a Japanese kana "ロ", and a water-stop rubber 114 (also see Figure 6 ) is also formed into the Japanese kana "ロ" shape along the opening.

[0051] In addition, at approximately the center on the hanging base side and approximately the center on the front end side of the surface 82 of the door 81, a front engaging and gripping portion 83 that is linked and connected to the back surface 87 of the door 81 is formed. On the back surface 87, a rear engaging and gripping portion 89 is formed, which has a horizontal engaging claw 90 directly connected to the front engaging and gripping portion 83; and a rear engaging and connecting gripping portion 92, which is disposed above and below the rear engaging and gripping portion 89 and has a horizontal engaging claw 90 that is linked through a link mechanism 91.

[0052] Each horizontal engaging claw 90 is configured to rotate simultaneously by rotating the front engaging and gripping portion 83 during closing, and engage with concave horizontal engaging receiving portions 115 formed on the left and right inner sidewalls of the frame body 111.

[0053] In addition, at approximately the center of the lower edge of the surface 82 of the door 81, a front lower engaging and gripping portion 84 that is linked and connected to the back surface 87 of the door 81 is formed. On the back surface 87, a rear lower engaging and gripping portion 95 is formed, and the rear lower engaging and gripping portion 95 has a lower engaging claw 94 directly connected to the front lower engaging and gripping portion 84.

[0054] The lower engaging claw 94 is configured to rotate simultaneously by rotating the front lower engaging and gripping portion 84 during closing, and engage with a concave lower engaging receiving portion (not shown) formed on the lower inner sidewall of the frame body 111.

[0055] Furthermore, a so-called floor bolt (Japanese: フランス落し) 97 is disposed at approximately the center of the lower edge of the back surface 87 of the door 81, and a bearing (not shown) through which the movable shaft 98 of the floor bolt 97 is inserted and engaged is formed on the lower inner sidewall of the frame body 111. And a handle 100 that is shaped like the Japanese kana "コ" in a top view protrudes at approximately the center of the back surface 87 of the door 81.

[0056] Therefore, when closing the door 81 from the outside of the door 81, after approximately closing while manually pressing the door 81, rotate the front engaging and gripping portion 83 and the front lower engaging and gripping portion 84. Thereby, it is possible to press the convex portion 88 against the water stop rubber 114 and close it in a watertight manner.

[0057] In addition, when closing the door 81 from the inside of the door 81, after approximately closing by pulling inward while gripping the handle 100, rotate the rear engaging and gripping portion 89 and the rear lower engaging and gripping portion 95 to engage the floor bolt 97. Thereby, it is possible to press the convex portion 88 against the water stop rubber 114 and close it in a watertight manner.

[0058] By means of such a hinge 1 and door mechanism D1, during the initial adjustment, the door 81 is pressed toward the frame 111 side so that the door side fixing portion 22 can rotate freely around the adjustment shaft 9 and is closed with approximately uniform pressure. On this basis, the rotation of the door side fixing portion 22 starting from the adjustment shaft 9 is approximately fixed by the connecting rod adjustment portion 46. Thus, while having two axes, only the fulcrum shaft 2 can contribute to the rotation of the door 81. Therefore, the movable area is unified during use, and even a large door 81 can be easily and accurately closed manually with approximately uniform pressure.

[0059] Next, the hinge 1 and the door mechanism D1 of this embodiment will be described in more detail.

[0060] First, if Figure 3 As shown, the main body fixing part 12 includes a fulcrum shaft 2, an adjustment shaft 9, a frame side fixing part 13, a door side fixing part 22 and a connecting rod part 32. The fulcrum shaft 2 is stopped at the frame side fixing part 13, and the frame side fixing part 13 is fixed to the frame 111 side. The adjustment shaft 9 is stopped at the door side fixing part 22, and the door side fixing part 22 is fixed to the door 81 side. The fulcrum shaft 2 and the adjustment shaft 9 are connected to the connecting rod part 32, and the connecting rod part 32 connects the frame side fixing part 13 with the door side fixing part 22.

[0061] The adjusting body fixing portion 45 described below is obtained by adding a link adjusting portion 46 to the body fixing portion 12 . The adjusting body fixing portion 45 has the same structure as the body fixing portion 12 except for the link adjusting portion 46 .

[0062] In addition, if Figure 8 As shown in B, the fulcrum shaft 2 is formed by a long and round rod-shaped metal shaft that is approximately the same height as the door 81 and extends vertically. Figure 5 As shown, internal thread holes 3a are formed at both ends (the lower end is omitted), and as shown Figure 4 、 Figure 5 As shown, longitudinal concave key grooves 6a are formed on the peripheral side surfaces near both end edges and in the middle portion, and longitudinal keys 7a protruding from the peripheral side surfaces are loosely fitted into the key grooves 6a with little play.

[0063] In the internal threaded holes 3a formed at the two end portions of the fulcrum shaft 2, the external threaded members 4a for stopping via the frame side fixing portions 13 provided at the upper and lower ends are screwed in with the washers 5a inserted therethrough, and the keys 7a protruding from the peripheral side surfaces near the two end edges of the fulcrum shaft 2 are engaged through the key grooves 17a formed in the frame side fixing portions 13 and engaged with the key 7a.

[0064] That is, both ends of the fulcrum shaft 2 are fixed by the external screws 4 a in a state where the fulcrum shaft 2 is not rotated by the keys 7 a engaged with the key grooves 17 a of the frame-side fixing parts 13 provided at the upper and lower ends.

[0065] Furthermore, the key 7a formed on the peripheral side surface of the midway portion of the fulcrum shaft 2 engages with the key groove 17a formed in the frame-side fixing portion 13 provided at that position, thereby further improving the rotation prevention effect of the fulcrum shaft 2.

[0066] like Figure 3 、 Figure 5 As shown, the frame side fixing portion 13 is composed of a frame side upper piece 14 and a frame side lower piece 19, and the frame side upper piece 14 and the frame side lower piece 19 are composed of metal and rectangular flat blocks. On the opposite side surfaces of one side, four frame side bolt insertion holes 15 are provided near the side corners of each piece 14, 19 and pass through in the horizontal direction, and a fulcrum shaft insertion hole 16 with a diameter slightly smaller than the outer diameter of the fulcrum shaft 2 is provided through in the vertical direction.

[0067] Furthermore, the frame-side upper piece 14 has the aforementioned vertically long concave key groove 17 a formed on the inner wall of the fulcrum shaft insertion hole 16 , with which the key 7 a of the fulcrum shaft 2 engages from above.

[0068] In addition, a temporary fixing hole 20a is bored in the center portion surrounded by four frame-side bolt insertion holes 15 bored in the frame-side lower piece 19, which passes through the fulcrum shaft insertion hole 16 in the horizontal direction and into which a set screw (not shown) is screwed.

[0069] In addition, the positioning screw screwed into the temporary fixing hole 20a is such a positioning screw: when assembling the hinge 1 of this embodiment, the peripheral side surface of the fulcrum shaft 2 is pressed and force is applied to prevent the lower piece 19 on the frame side from falling downward, and an internal threaded hole for the positioning screw to be screwed into can also be formed at this position of the fulcrum shaft 2.

[0070] With respect to the frame side fixing portion 13 including such a frame side upper piece 14 and a frame side lower piece 19, in a state where a link portion 32 described later is provided in a gap between the frame side upper piece 14 and the frame side lower piece 19, the fulcrum shaft 2 is inserted into the fulcrum shaft insertion hole 16 from the lower end side of the fulcrum shaft 2, and is provided at a predetermined position above, and is fixed to the frame 111 by screwing an unillustrated bolt inserted into the frame side bolt insertion hole 15 into an unillustrated internal threaded hole formed on the side of the frame 111.

[0071] In this case, on the fulcrum shaft 2, the external threaded member 4a inserted through the washer 5a is screwed into the internal threaded hole 3a formed at the upper end of the fulcrum shaft 2 from above in advance. As a result, the frame side upper piece 14 of the uppermost frame side fixing part 13 abuts against the washer 5a, thereby preventing the frame side fixing part 13 from passing over the upper end of the fulcrum shaft 2 and falling off.

[0072] In addition, the frame side fixing portion 13 arranged on the fulcrum shaft 2 is arranged sequentially while moving from the bottom to the top of the fulcrum shaft 2 through the fulcrum shaft insertion hole 16. At this time, in the key setting groove 6a formed on the fulcrum shaft 2, only the key 7a corresponding to the position of the frame side fixing portion 13 to be arranged is arranged each time the frame side fixing portion 13 is arranged. In this way, the following situation can be avoided: when the frame side fixing portion 13 is inserted into the fulcrum shaft 2, the key 7a in the middle becomes an obstacle to insertion.

[0073] In addition, after the lowest frame side fixing part 13 is inserted into the fulcrum shaft 2, the external threaded part 4a inserted into the washer 5a is screwed into the internal threaded hole 3a formed at the lower end of the fulcrum shaft 2 from the bottom. As a result, the frame side lower piece 19 of the lowest frame side fixing part 13 is abutted and placed on the washer 5a, thereby preventing the frame side fixing part 13 from passing over the lower end of the fulcrum shaft 2 and falling off.

[0074] The frame-side fixing portion 13 can be fixed to the frame 111 by screwing a bolt (not shown) inserted through the frame-side bolt insertion hole 15 into a female screw hole (not shown) formed on the frame 111 side.

[0075] In addition, in the present embodiment, the frame side fixing portion 13 is composed of two components, the frame side upper piece 14 and the frame side lower piece 19, but various deformations and changes can be made within the scope of the main purpose of the present invention, such as by setting the vertical piece between the frame side upper piece 14 and the frame side lower piece 19 on the side located on the frame 111 side to form the frame side upper piece 14 and the frame side lower piece 19 into the Japanese kana "コ" shape when viewed from the side.

[0076] In addition, if Figure 8 As shown in FIG. 2, the adjustment shaft 9 is formed by a long and round rod-shaped metal shaft that is approximately the same height as the door 81 and extends vertically. Figure 5 As shown, internal thread holes 3b are formed at both ends (the lower end is omitted), and as shown Figure 4 、 Figure 5 As shown, longitudinal concave key grooves 6b are formed near both end edges and the peripheral side surface in the middle portion, so that longitudinal keys 7b protruding from the peripheral side surface are loosely fitted in the key grooves 6b with little play.

[0077] In the internal threaded holes 3b formed at the two end portions of the adjustment shaft 9, the external threaded parts 4b for stopping via the door side fixing parts 22 arranged at the upper and lower ends are screwed in with the gasket 5b inserted through them, and the key 7b protruding from the peripheral side surfaces near the two end edges of the adjustment shaft 9 is engaged through the key groove 17b, which is formed in the door side fixing part 22 and engages with the key 7b.

[0078] That is, in the adjustment shaft 9, both ends are fixed by the external screws 4b in a state where they are not rotated by the keys 7b engaged with the key grooves 17b of the door-side fixing portions 22 provided at the upper and lower ends.

[0079] Furthermore, the key 7b formed on the peripheral side surface of the midway portion of the adjustment shaft 9 engages with the key groove 17b formed in the door-side fixing portion 22 provided at that position, thereby further improving the anti-rotation effect of the adjustment shaft 9.

[0080] like Figures 3 to 5 As shown, the door side fixing portion 22 is composed of a door side upper piece 23 and a door side lower piece 29, which are made of metal and rectangular flat blocks. On the opposite side surfaces on one side, four door side bolt insertion holes 24 are provided near the side corners of each piece 23, 29, which pass through in the horizontal direction, and an adjustment shaft insertion hole 26 with a diameter slightly smaller than the outer diameter of the adjustment shaft 9 is provided in each piece 23, 29 along the vertical direction.

[0081] Furthermore, the door-side upper piece 23 has the aforementioned vertically long concave key groove 17 b formed on the inner wall of the adjustment shaft insertion hole 26 , with which the key 7 b of the adjustment shaft 9 engages from above.

[0082] Furthermore, a temporary fixing hole 20b is bored in the center portion surrounded by four door-side bolt insertion holes 24 bored in the door-side lower piece 29 and passes horizontally through the adjustment shaft insertion hole 26 for screwing a set screw (not shown).

[0083] In addition, the positioning screw screwed into the temporary fixing hole 20b is such a positioning screw: when assembling the hinge 1 of this embodiment, the peripheral side surface of the adjustment shaft 9 is pressed and force is applied to prevent the lower door side piece 29 from falling downward, and an internal threaded hole for the positioning screw to be screwed into can also be formed at this position of the adjustment shaft 9.

[0084] For the door side fixing portion 22 including such a door side upper piece 23 and a door side lower piece 29, in a state where the connecting rod portion 32 described later is provided in the gap between the door side upper piece 23 and the door side lower piece 29, the adjustment shaft 9 is inserted into the adjustment shaft insertion hole 26 from the lower end side of the adjustment shaft 9, and is provided at a predetermined position above, and is fixed to the door 81 by screwing the bolt 25 inserted into the door side bolt insertion hole 24 and the internal threaded hole (not shown) formed on the side of the door 81.

[0085] In this case, on the adjustment shaft 9, the external threaded part 4b inserted into the washer 5b is screwed into the internal threaded hole 3b formed on the upper end of the adjustment shaft 9 from above in advance, whereby the door side upper piece 23 of the uppermost door side fixing part 22 abuts against the washer 5b, thereby preventing the door side fixing part 22 from falling off by passing over the upper end of the adjustment shaft 9.

[0086] In addition, the door side fixing portion 22 arranged on the adjustment shaft 9 is arranged sequentially while moving from the bottom to the top of the adjustment shaft 9 through the adjustment shaft insertion hole 26. At this time, in the key setting groove 6b formed on the adjustment shaft 9, only the key 7b corresponding to the position of the door side fixing portion 22 of the arrangement object is arranged in sequence each time the door side fixing portion 22 is arranged. In this way, the following situation can be avoided: when the door side fixing portion 22 is inserted into the adjustment shaft 9, the key 7b in the middle becomes an obstacle to the insertion.

[0087] In addition, after the lowest door side fixing part 22 is inserted into the adjustment shaft 9, the external threaded part 4b inserted into the washer 5b is screwed into the internal threaded hole 3b formed at the lower end of the adjustment shaft 9 from the bottom. As a result, the door side lower piece 29 of the lowest door side fixing part 22 is abutted and placed on the washer 5b, thereby preventing the door side fixing part 22 from falling off by passing over the lower end of the adjustment shaft 9.

[0088] The door-side fixing portion 22 can be fixed to the door 81 by screwing the bolts 25 inserted through the door-side bolt insertion holes 24 into internal threaded holes (not shown) formed on the door 81 side.

[0089] In addition, in the present embodiment, the door side fixing portion 22 is composed of two components, the door side upper piece 23 and the door side lower piece 29, but various deformations and changes can be made within the scope of the main purpose of the present invention, such as by setting the vertical piece between the door side upper piece 23 and the door side lower piece 29 on the side located on the door 81 side to form the door side upper piece 23 and the door side lower piece 29 into the Japanese kana "コ" shape when viewed from the side.

[0090] In addition, if Figure 6 As shown, the connecting rod portion 32 is made of metal and is formed with a predetermined thickness so as to be roughly in the shape of the Arabic numeral "8" when viewed from above. It is provided with a fulcrum shaft rotation hole 33 and an adjustment shaft rotation hole 34 that pass through the metal in an upward and downward manner so as to be roughly in the shape of the Arabic numeral "8" when viewed from above.

[0091] In the fulcrum shaft rotation hole 33 and the adjustment shaft rotation hole 34, Figure 4The flange 42 of the flanged bushing 41 made of synthetic resin and in a circular tubular shape is pressed in from above and is arranged between the frame side upper piece 14 and the frame side lower piece 19 of the frame side fixing part 13, and between the door side upper piece 23 and the door side lower piece 29 of the door side fixing part 22, and is respectively inserted into the fulcrum shaft 2 and the adjustment shaft 9.

[0092] The specific shape of the connecting rod portion 32 is formed as follows: Figure 6 As shown in the plan view of FIG, 12 corners c are formed, and the substantially central portion is narrowed and expanded toward the fulcrum shaft rotation hole 33 and the adjustment shaft rotation hole 34 located at the left and right positions, and the end sides are narrowed.

[0093] In particular, in observing Figure 6 When the adjustment shaft rotation hole 34 is adjusted, the lower side becomes convex downward so that the center of the adjustment shaft rotation hole 34 becomes the convex top angle of the corner of the front side surface 35 when viewed from the front, forming a reference corner 36, and the left side of the reference corner 36 (the side that overlaps with the left side of the adjustment shaft rotation hole 34 when viewed from the front) is formed as a return side 37, and the right side (the side that overlaps with the right side of the adjustment shaft rotation hole 34 when viewed from the front) is formed as a pushing side 38.

[0094] In addition, the sides other than the return side 37 and the pushing side 38 are formed so that the link portion 32 does not contact the frame 111 and the door 81 as much as possible. However, the shape of the link portion 32 is not limited to this embodiment and can be variously deformed and changed within the scope of the main purpose of the present invention.

[0095] Next, the adjustment body fixing portion 45 includes a link adjusting portion 46 in the body fixing portion 12 described above. The link adjusting portion 46 adjustably fixes the link portion 32 to the door-side fixing portion 22 at a substantially arbitrary angle.

[0096] like Figure 4 、 Figure 6 As shown, in the connecting rod adjustment part 46, 8 door side bolt front surface insertion holes 48 are provided near the left and right long sides of the metal and rectangular plate-shaped base plate 47. The 8 door side bolt front surface insertion holes 48 correspond to the 4 door side bolt insertion holes 24 respectively provided to the door side upper piece 23 and the door side lower piece 29 of the door side fixing part 22. An adjustment internal threaded hole 49 is formed in the central part of the left and right long sides, and an adjustment component 50 composed of a push-pull bolt is screwed in along the horizontal direction.

[0097] The adjustment member 50 is composed of a return bolt 51 and a nut 52 on the left, and a push bolt 53 and a nut 54 on the right. The base plate 47 is located on the front surface of the door side fixing part 22 constituting the main body fixing part 12 in a manner such that the door side bolt insertion hole 24 and the door side bolt front surface insertion hole 48 are connected, and is fastened integrally with the door 81 by means of bolts 25.

[0098] In addition, the front end of the return bolt 51 is configured to freely abut against the return edge 37 formed on the connecting rod portion 32 through the forward and backward operation of the bolt, and the front end of the pushing bolt 53 is also configured to freely abut against the pushing edge 38 formed on the connecting rod portion 32 through the forward and backward operation of the bolt. Thus, the connecting rod portion 32 can be roughly fixed relative to the door side fixing portion 22 at an arbitrary angle when the front end of the return bolt 51 and the front end of the pushing bolt 53 abut against the return edge 37 and the pushing edge 38 respectively at the same time.

[0099] Specifically, if Figure 7 As shown in A, if the two bolts 51 and 53 are fixed with nuts 52 and 54 while the pressing bolt 53 is extended beyond the return bolt 51, the link portion 32 can be fixed to the door-side fixing portion 22 at an angle substantially toward the side that closes the door 81.

[0100] In addition, if Figure 7 As shown in B, if the return bolt 51 and the push bolt 53 are fixed with nuts 52 and 54 while being extended to the same extent, the link portion 32 can be fixed to the door-side fixing portion 22 at an angle substantially parallel to the door 81.

[0101] Furthermore, if Figure 7 As shown in C, if the return bolt 51 is extended beyond the push bolt 53 and the two bolts 51 and 53 are fixed using nuts 52 and 54, the link part 32 can be fixed to the door side fixing part 22 at an angle substantially on the side where the door 81 is opened.

[0102] In addition, the structure and shape of the link adjustment portion 46 are not limited to the present embodiment, and various modifications and changes can be made within the scope of the gist of the present invention.

[0103] In addition, the hinge 1 of this embodiment can also be used as Figure 9 The door mechanism D2 shown is a swing door composed of a door that can be divided freely in the vertical direction.

[0104] This door mechanism D2 is a hinge 1 having four adjustment main body fixing parts 45 and two main body fixing parts 12 relative to the fulcrum axis 2 and the adjustment axis 9. The adjustment main body fixing parts 45 are arranged above and below each main body fixing part 12 on the upper door 102 and the lower door 106, thereby making it easy to adjust the connecting rod part 32 to any angle relative to the door side fixing part 22.

[0105] The lower end of the upper door 102 is formed in an L-shape in cross-section, and the upper end of the lower door 106 is formed in an L-shape in cross-section so as to engage with the lower end of the upper door 102 .

[0106] In addition, a plurality of communicating bolt holes 103 are provided in the engaging portion of the upper door 102 and the lower door 106, and they are connected to each other by a plurality of bolts 104 and nuts 105, thereby functioning as a single door (81).

[0107] Furthermore, by interposing a waterproof rubber in the engaging portion between the upper door 102 and the lower door 106 , the watertightness of the portion can be improved.

[0108] By constructing the hinge 1 and door mechanism D1 of this embodiment as described above, the hinge 1 and door mechanism D1 include a fulcrum shaft 2, a long adjustment shaft 9, and an adjustment main body fixing portion 45. The fulcrum shaft 2 is formed as a long strip that is approximately the same height as the door 81 and extends up and down. The adjustment shaft 9 is adjacent to and parallel to the fulcrum shaft 2 with a length approximately the same as that of the fulcrum shaft 2. The adjustment main body fixing portion 45 has a connecting rod adjustment portion 46 in the main body fixing portion 12 that can adjust the connecting rod portion 32 to approximately any angle relative to the door side fixing portion 22. The main body fixing portion 12 includes: a frame side fixing portion 13, the fulcrum shaft 2 is stopped at the frame side fixing portion 13, and it is fixed to the frame 111 side; a door side fixing portion 22, the adjustment shaft 9 is stopped at the door side fixing portion 22, and it Fixed to the door 81 side; and the connecting rod part 32, the fulcrum shaft 2 and the adjustment shaft 9 shaft pass through the connecting rod part 32, and it connects the frame side fixing part 13 and the door side fixing part 22, the hinge 1 and the door mechanism D1 have at least two or more adjustment main body fixing parts 45, thereby, during the initial adjustment, the door side fixing part 22 is made to be in a state of free rotation around the adjustment shaft 9 and the door 81 is pressed toward the frame 111 side in a manner of closing with approximately uniform pressure, and on this basis, the rotation of the door side fixing part 22 starting from the adjustment shaft 9 is roughly fixed by using the connecting rod adjustment part 46, thereby, it is possible to have two axes while only the fulcrum shaft 2 contributes to the rotation of the door, so that the movable area is unified when in use, and even a large door 81 can be easily and accurately closed manually in a manner of approximately uniform pressure.

[0109] Furthermore, the long fulcrum shaft 2 and the adjustment shaft 9 are arranged along the longitudinal direction of the frame 111 and the hanging base of the door 81 , thereby the hinge 1 integrally supports the door 81 , thereby significantly improving the overall rigidity.

[0110] Furthermore, all the connecting rod parts 32 are made into an integral structure connected to the same fulcrum shaft 2 and adjustment shaft 9, thereby greatly reducing the complexity of adjusting the inclination of each of the two shafts 2 and 9 during construction, and making it easy to perform adjustment operations for allowing the door 81 to open and close smoothly without load.

[0111] Furthermore, by providing the main body fixing portions 45 for adjustment at least at both ends of the hinge 1 and providing the main body fixing portion 12 in the gap therebetween, the overall rigidity can be further improved.

[0112] The link adjustment portion 46 includes adjustment members 50 disposed on the left and right sides of the adjustment shaft 9 so as to be movable forward and backward in the door direction. This allows the door-side fixing portion 22 to be reliably and substantially fixed in rotation about the adjustment shaft 9 with a simple structure.

[0113] In addition, the connecting rod adjustment portion 46 is configured so that the top end of the adjustment member 50 can freely abut against the front side surface 35 of the connecting rod portion 32 by the forward and backward operation of the adjustment member 50. Thus, the adjustment main body fixing portion 45 having the connecting rod adjustment portion 46 can be easily constructed based on the same main body fixing portion 12, and the hinge 1 can be manufactured inexpensively.

[0114] In addition, by using the door mechanism D1 of the swing door using the above-mentioned hinge 1, the door 81 can be maintained at a high rigidity. Therefore, even if the door 81 is large, the axis will not be offset after construction, and the front end side of the door will not drop. The door 81 can be opened and closed smoothly without load. Moreover, the operability during opening and closing is as simple as that of a door composed of a single-axis hinge, and it can be easily and accurately closed manually with approximately uniform pressure. Thus, a door mechanism D1 with higher sealing performance can be provided.

[0115] Furthermore, a door mechanism D2 can be provided, in which the hinge 1 is used for a swing door that can be divided freely in the upper and lower directions. Thus, even in a situation where a large door cannot be moved in unchanged due to the door installation environment, construction can be easily performed by dividing the door and moving it in.

[0116] As mentioned above, although the preferred embodiment of the hinge 1 and the door mechanisms D1 and D2 of this embodiment of the present invention has been described, the present invention is not limited to the specific embodiment, and various modifications and changes are possible.

[0117] Description of Reference Numerals

[0118] D1. Door mechanism; D2. Another door mechanism; 1. Hinge; 2. Fulcrum shaft; 9. Adjustment shaft; 12. Main body fixing portion; 13. Frame side fixing portion; 22. Door side fixing portion; 32. Connecting rod portion; 35. Front side; 45. Main body fixing portion for adjustment; 46. Connecting rod adjustment portion; 50. Adjustment member; 81. Door; 111. Frame.

Claims

1. A hinge, characterized in that: The hinge includes a fulcrum shaft, a long adjustment shaft and a main body fixing portion for adjustment. The fulcrum shaft is formed into a long strip that is approximately the same height as the door and extends vertically. The adjustment shaft is disposed adjacent to and parallel to the fulcrum shaft with substantially the same length as the fulcrum shaft. The adjustment main body fixing part is provided with a connecting rod adjustment part in the main body fixing part, which can adjust the connecting rod part to be roughly fixed to an arbitrary angle relative to the door side fixing part. The main body fixing part includes: a frame side fixing part, the fulcrum shaft is stopped at the frame side fixing part, and it is fixed to the frame side; the door side fixing part, the adjustment shaft is stopped at the door side fixing part, and it is fixed to the door side; and the connecting rod part, the fulcrum shaft and the adjustment shaft pass through the connecting rod part, and it connects the frame side fixing part and the door side fixing part. The connecting rod adjustment portion includes a base plate and adjustment members respectively arranged on the left and right sides of the adjustment shaft so as to be able to move forward and backward in the door direction. The base plate is connected to the door-side fixing portion, and the adjustment member passes through the base plate and contacts the connecting rod portion. The link adjustment portion is configured such that the front end portion of the adjustment member can freely come into contact with the front side surface of the link portion by the forward and backward operation of the adjustment member. The hinge includes at least two or more of the adjustment main body fixing parts.

2. The hinge according to claim 1, characterized in that The main body fixing portion for adjustment is provided at least at both ends of the hinge, and the main body fixing portion is provided in a gap therebetween.

3. A door mechanism, wherein: In the door mechanism, the hinge according to claim 1 is used for a swing door.

4. The door mechanism according to claim 3, wherein: The door mechanism is composed of the door that can be divided vertically.

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