JP4139399B2 - Adjustable pivot hinge - Google Patents

Description

  The present invention relates to a pivot hinge having a door installation adjustment function.

  Conventionally, there are a number of pivot hinges having a function of adjusting the installation of a door, and there are a type that moves and adjusts by rotating a screw, and a type that moves and adjusts by rotating a moving metal fitting having an eccentric shaft. Many reports have been made in US Pat. However, these adjustment mechanisms are configured to operate on the flat part taken out of the door side plate or the thickness part of the door of the frame side plate, and compared to try to adjust the movement back and forth and left and right on the same plane. Large space is required, and there remains a problem in compactness. In addition, a large number of separate parts are used for installation adjustment, and the number of parts increases and the cost tends to be high.

  Further, in the form of the pivot hinge, since the load of the door is received on the surface of the plate, there is a problem that the strength surface becomes weaker as the distance to bring out the axial center position becomes larger. In such cases, the axial center position is inevitably taken out, which is disadvantageous. Furthermore, when a pivot hinge is attached to an indoor door, the design is particularly important, and it has been difficult to use a pivot hinge having a shape that protrudes largely toward the front side of the vertical position on the hanging side of the door.

Further, in the indoor door, the positional relationship between the frame body and the door in the vertical direction, that is, the gap between the floor surface and the lower end of the door varies from one door to another, and the range is quite wide at present. In this respect, the conventional vertical adjustment has a function of finely adjusting only the deviation at the time of installation in a predetermined setting, and when the setting is different from the beginning, for example, floor and door When the gap with the lower end is very large, it is necessary to lift the frame plate on the lower pivot and lift it from the floor to attach it to the vertical frame. However, the strength is not satisfactory in the floated state. Therefore, a configuration for receiving a load by inserting a spacer or the like between the floor surface and the frame side plate is reported in Japanese Patent Application Laid-Open No. 2003-239609. However, this configuration also requires separate parts such as spacers, and in order to deal with various gaps, it takes time and effort to insert after setting a necessary thickness by appropriately stacking relatively thin spacers. Also, when the frame side plate is lifted, it looks bad and poor in design.
JP-A-5-222879 JP-A-9-13783 JP 2003-239609 A

  Therefore, by setting the pivot hinge shaft take-out distance short, the part protruding from the thickness part of the door is made as small as possible, and even a small plate can handle a sufficient load, and a simple front / rear / left / right adjustment mechanism is adopted. The first objective is to develop a pivot hinge that can be provided in a compact and inexpensive manner with as few parts as possible. In addition, it is possible to increase the vertical adjustment width, attach the frame plate of the lower pivot so that it is always in contact with the floor surface, and be able to handle various types of doors as they are. The purpose.

  First, the upper pivot and the lower pivot are both composed of two pairs of frame side plates and door side plates having straight elongated holes. The frame-side plate is provided with a long hole in the left-right direction parallel to the door surface, and the door-side plate is provided with a long hole in the front-rear direction perpendicular to the door surface. Next, the door side plate axis and the frame side plate axis are mounted on the door side plate and the frame side plate of each of the upper pivot and the lower pivot. The axis for the frame-side plate is almost the same shape for both the upper and lower parts, and is composed of a hexagonal collar part at the center, a shaft part, and a bolt part. Tighten with nuts and fix. At this time, only the length of the shaft portion is set so that the upper frame side plate axial center is slightly longer.

  The door-side plate shaft has a different shape for the upper and lower parts, and the upper door-side shaft axis is composed of a bolt part and an upper receiver with a U-shaped groove. The shaft center is composed of a bolt portion and a lower ring. Then, the bolts of the door-side plate shaft are passed through the long holes of the upper and lower door-side plates, and then tightened and fixed with front and rear fixing nuts. In the lower pivot, another vertical adjustment nut is inserted between the lower ring and the lower surface of the door-side plate in a state where it is screwed to the bolt part. Fix the plate so that it is pinched.

  Then, the frame-side pivot is fixed to both the upper and lower positions on the suspension base side of the frame body so as to face each other. And a door side pivot is fixed to the up-and-down both positions of the hanging base side of a door. At this time, the door-side upper pivot is attached so that the upper receiver faces upward, and the door-side lower pivot faces the lower ring downward. Therefore, the shaft part of the frame side plate axis rises upward from the frame side lower pivot, and the shaft part of the frame side plate axis falls downward from the frame side upper pivot. The upper receiver is arranged on the upper side of the door side plate, and the lower ring is arranged on the lower side of the door side plate in the lower position.

  When the door is lifted from this state, the lower ring is inserted into the shaft part of the lower pivot on the frame side, and the U-shaped groove of the upper receiver is hooked on the shaft part of the upper pivot on the frame side, the door is temporarily held by its own weight. The door can be suspended by a means such as covering the groove. In this state, the door side plate and the frame side plate overlap in the vertical direction on both the upper pivot and the lower pivot, and the long hole of the door side plate and the long hole of the frame side plate are arranged in a cross shape when viewed from above, and the center position is the reference Each axis is installed at the position.

  Next, the adjustment method of right and left and front and back is demonstrated. First, loosen the hexagonal brim of the axis for the frame side plate with a spanner while the door is suspended, and press and pull it with a spanner or hand along the long hole in the left and right direction. Tighten the hexagonal collar part again in position. This left / right adjustment can be carried out independently for each of the upper pivot and the lower pivot, and there is no movement in the front / rear direction or the vertical direction during this adjustment. Longitudinal adjustment can be performed by loosening the front and rear fixing nuts, pushing and pulling the door or door side plate, and fixing it again at an arbitrary position. is there.

  Next, the vertical adjustment method will be described. First, loosen the front and rear fixing nuts located on the upper side of the door plate of the lower pivot to some extent, and rotate the vertical adjustment nuts that are in close contact with the lower surface of the door side plate by the amount loosened to bring the door together with the vertical adjustment nuts. The side plate and door can be lifted up and down. In addition, the fixing may be performed by tightening the front and rear fixing nuts located on the upper side of the door side plate, and the adjusted vertical position does not go wrong in the fixing operation. Therefore, the vertical adjustment nut need only be attached to the lower pivot.

  Here, the conventional vertical adjustment of the pivot hinge with adjustment is for correcting a slight deviation after installation. However, in the present invention, it is possible to make a large vertical adjustment by forming the bolt portion of the door side plate shaft center so as to be much longer in the upward direction. In other words, when adjusting in a large upward direction, it is preferable to turn the vertical adjustment nut after turning the front and rear fixing nuts largely upward. As a result, not only the role of adjusting the installation error but also various doors with different settings of the vertical position of the door with respect to the frame can be widely adapted by adjusting the vertical position.

  The two-way adjustment is performed by adjusting the left and right adjustments by moving the frame side plate axis relative to the frame side plate and the front and rear adjustments by moving the door side plate axis relative to the door side plate. Since the mechanisms are arranged one above the other, the space for adjustment can be made very small, and the overall configuration can be made compact. Therefore, the distance of the shaft center from the door surface can be reduced, and the conditions for receiving the load can be improved.

  Without using a complicated mechanism for adjustment, use a very simple mechanism to loosen the left and right fixing nuts and the front and rear fixing nuts and push and pull the inside of the long hole and fix it again at an arbitrary position. Is not required at all, and can be made into an inexpensive form with a small number of parts.

  It is possible to perform a large vertical adjustment simply by inserting a vertical adjustment nut into the lower pivot and forming a bolt portion of the shaft center for the door side plate of the lower pivot much longer. As a result, in addition to the role of finely adjusting the up-and-down deviation at the time of installation as in the past, it can be widely adjusted by adjusting the vertical position greatly in various doors with different settings of the lower end of the door from the floor. Can be adapted. Therefore, it is not necessary to lift and fix the frame side plate of the lower pivot from the floor surface, and it is very effective in terms of strength.

  Embodiments of the pivot hinge with adjustment function of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical side view of a pivot hinge with a building adjustment function according to the present invention, showing a state in which a door 23 is closed. FIG. 2 is a vertical side view of the frame 24 only with the door 23 removed, and FIG. 3 is a vertical side view of the door 23 only. At this time, as shown in FIG. 2 and FIG. 3, the pivot of the configuration arranged above and below the frame body 24 is the frame side upper pivot and the frame side lower pivot, and the pivot of the configuration arranged above and below the door 23 is used. The door side upper pivot and the door side lower pivot are used. Therefore, as shown in FIG. 1, the upper pivot is constituted by the frame side upper pivot and the door side upper pivot, and the lower pivot is constituted by the frame side lower pivot and the door side lower pivot.

  FIG. 4 shows the frame side plate 1, FIG. 4 (a) is a top view, and FIG. 4 (b) is a side view. As shown in FIG. 4B, the frame side plate 1 is bent into an L shape, and the attachment to the frame body 24 is set on the inner surface of the vertical frame, and the attachment hole 4 is arranged at that position. The position where the adjusting mechanism is incorporated is set in a horizontal plane portion 3, a long hole 5 in the left-right direction parallel to the door surface is provided in this plane portion 3, and a rectangular diaphragm portion 6 is provided around the long hole 5. FIG. 5 is a perspective view of the frame side plate shaft center 7, in which a hexagonal collar portion 8 is provided at the center, one side thereof is formed as a shaft portion 9, and the opposite side is formed by a bolt portion 10. Then, left and right fixing nuts 11 having a shape movable in the same direction as the long hole 5 along the rectangular diaphragm portion 6 of the frame side plate 1 are provided. At this time, the depth of the rectangular diaphragm portion 6 is set larger than the thickness of the left and right fixing nuts 11.

  Then, the bolt portion 10 of the frame-side plate shaft center 7 is inserted into the elongated hole 5 of the frame-side plate 1 and sandwiched and fixed by the left and right fixing nuts 11 to constitute a frame-side pivot. At this time, the left and right fixing nuts 11 are prevented from rotating in the rectangular diaphragm portion 6. FIG. 6 is a top plan view of this state. The frame-side upper pivot and the frame-side lower pivot have almost the same configuration. Then, as shown in FIG. 2, the frame portion 24 is attached so that the shaft portion 9 of the frame-side plate axis 7 faces the vertical position on the suspension base side of the frame body 24. Then, the shaft portion 9 rises upward from the frame side plate 1 of the frame side lower pivot, and the shaft portion 9 falls downward from the frame side plate 1 of the frame side upper pivot. Here, the only difference between the upper and lower frame side pivots is that the shaft portion 9 is set slightly longer in the upper frame side plate shaft center 7.

  As a left-right adjustment operation, when the hexagonal collar portion 8 is slightly returned in a loosening direction with a jig such as a spanner, the frame side plate axis 7 is loosened, and the frame side plate axis 7 is moved along the long hole 5. It becomes movable. As a result, it is possible to adjust left and right by an operation of pushing and pulling left and right with the spanner inserted, an operation of slightly opening the door 23 and moving the door 23 to the left and right. And if the hexagonal collar part 8 is again tightened with the spanner in the right-and-left position in the range of the long hole 5, it can fix in that position. That is, the left / right adjustment can be performed only by the frame side pivot, and this operation can be performed independently by the upper and lower frame side pivots. Also, a disc spring washer or the like may be incorporated between the hexagonal collar portion 8 and the frame side plate 1 to prevent loosening.

  Next, the door side plate 2 is shown in FIG. FIG. 7A is a top view of the door-side plate 2, and FIG. 7B is a side view. As shown in FIG. 7B, the door side plate 2 is bent into a Z shape, and one of the two horizontal surfaces is set as a mounting surface to the door 23, and the mounting hole 4 is provided. Then, another horizontal plane is set as a plane portion 3 into which the adjusting mechanism is incorporated, and a long hole 5 in the front-rear direction perpendicular to the door surface is provided in the plane portion 3.

  The door-side plate axis 12 has a different shape between the door-side upper pivot and the door-side lower pivot. As shown in FIG. 8, the door-side plate axis 12 of the door-side upper pivot has a bolt portion 10, an upper receiver 13 having a U-shaped groove 14, such as a resin with good wear resistance, and a bolt portion 10. It is composed of an upper receiving U-shaped bracket 15 for mounting the upper receiving 13. Then, a means for putting a lid 16 on the opening side of the U-shaped groove 14 is provided. Any means may be used, but a simple method of closing the U-shaped groove 14 by rotating the plate-shaped fan-shaped lid 16 as shown in FIG. As shown in FIG. 9, the door-side plate axis 12 of the door-side lower pivot is used to mount the bolt portion 10, the lower ring 17 made of resin having good wear resistance, and the lower ring to the bolt portion 10. And a U-shaped metal fitting 18 for the lower ring. The door side plate 2 is sandwiched and fixed by a front and rear fixing nut 19 in a state where the bolt portion 10 of the door side plate axis 12 is passed through the long hole 5 in the front and rear direction. At this time, it is arranged so that the upper receiver 13 faces upward at the door-side upper pivot and the lower ring 17 faces downward at the door-side lower pivot. FIG. 10 is a top view of the door-side lower pivot. At this time, it is necessary to prevent the front and rear fixing nuts 19 and the door-side plate axis 12 from rotating together, and the door-side plate 2 is provided with a non-rotating portion 20 as shown in FIG. It is preferable to set so that the side of the U-shaped bracket 18 for the lower ring 15 or the lower ring abuts against the detent portion 20.

  The operation is the same for the front / rear adjustment, and can be carried out by loosening the front / rear fixing nut 19 and adjusting it by pushing and pulling the door 23 or the door side plate 2 and fixing it again at an arbitrary position. The lower pivot can be adjusted independently. However, when moving and adjusting in the forward direction with the door 23 closed, there is no part to hold by hand and the operability is poor. Therefore, although not shown, a projection or the like is provided at the tip of the flat part 3 of the door side plate 2. If it is hooked with a jig such as a spanner so that it can be pulled forward, the operation becomes easier. Similarly to the left / right adjustment, if a disc spring washer or the like is inserted between the flat portion 3 of the door side plate 2 and the front / rear fixing nut 19, it is effective as a loosening prevention.

  Here, in the door-side lower pivot, as shown in FIG. 3, another vertical adjustment nut 21 is screwed into the bolt portion 10 between the upper side of the U-shaped bracket 18 for the lower ring and the lower surface of the door-side plate 2. And the door side plate 2 is sandwiched between two nuts with the front and rear fixing nuts 19 on the upper side of the door side plate 2. And the door side upper pivot is fixed to the upper part of the door 23, and the door side lower pivot is fixed to the lower part. Then, as shown in FIG. 3, the upper receiver 13 is disposed on the upper side of the flat portion 3 of the door-side plate 2 of the door-side upper pivot, the front and rear fixing nuts 19 are disposed on the lower side, and the lowermost portion of the door-side lower pivot is disposed. A lower ring is arranged, an upper and lower adjustment nut 21 is arranged thereon, a plane part 3 of the door side plate 2 is positioned thereon, and a front and rear fixing nut 19 is arranged further above the plane part 3. It becomes a state.

  Next, the vertical adjustment operation will be described. First of all, the front and rear fixing nut 19 located above the door side plate 2 of the door side lower pivot is loosened to a certain extent, and the up and down adjustment nut 21 that is in close contact with the lower side of the flat portion 3 of the door side plate 2 by the loosened part is used with a spanner. When it is rotated upward, the door side plate 2 and the door 23 are lifted together with the vertical adjustment nut 21 and the vertical adjustment can be performed. Therefore, the vertical adjustment nut 21 need only be attached to the lower pivot. Fixing may be performed by tightening the front and rear fixing nuts 19 positioned on the upper side of the door-side plate 2, and the adjusted vertical position does not go wrong in the fixing operation.

  Here, most of the conventional vertical adjustment of the pivot hinge with adjustment is for correcting a slight deviation after installation. Therefore, when the clearance between the lower end surface of the door 23 and the floor surface is very large, the conventional vertical adjustment width (about 3 mm) cannot be used, and the frame side lower pivot itself is lifted from the floor surface. Must be installed in condition. However, if it is mounted in a floating state, it is necessary to extremely increase the strength of the frame side plate 1 itself, or to insert an auxiliary member such as a spacer for supporting a load between the lower surface of the frame side plate 1 and the floor surface. In that respect, in the vertical adjustment mechanism of the present invention, as shown in FIG. 11, the vertical adjustment can be carried out greatly by forming the bolt portion 10 of the door-side plate axis 12 much longer. Therefore, the frame-side plate 1 of the frame-side lower pivot can always be placed on the floor surface, and is excellent in the condition of receiving a load. As a result, not only the role of finely adjusting the vertical installation error, but also various doors with different settings of the vertical position of the door 23 relative to the frame body 24 can be widely adapted as they are by adjusting the vertical position largely. It is possible.

  Next, the suspension operation will be described. The pivot hinge of the present invention is attached to the frame 24 and the door 23 so as to be in the state shown in FIGS. 2 and 3, and at this time, the lid 16 of the door side upper pivot is arranged so as not to block the U-shaped groove 14. Keep it. When the door 23 is lifted up slightly, the lower ring 17 is inserted into the shaft portion 9 of the frame side lower pivot, and the door 23 is raised to hook the U-shaped groove 14 of the upper receiver 13 onto the shaft portion 9 of the frame side upper pivot. Is temporarily held by its own weight, and then the lid 16 is rotated to close the U-shaped groove 14 to complete the suspension of the door 23. Then, the decorative cover 22 is fitted to the door side upper pivot and the door side lower pivot. At this time, it is preferable to set the door-side upper pivot so that the cover 16 does not return by covering the decorative cover 22.

  Here, regarding the vertical position of the door 23 with respect to the frame 24, if the gap between the floor surface and the lower end surface of the door 23 is wider than the reference setting, the distance of the difference is calculated in advance and adjusted up and down before hanging. The distance may correspond to the clearance between the upper surface of the U-shaped bracket 18 for the lower ring and the lower surface of the vertical adjustment nut 21. Then, when the door 23 is suspended, the shaft portion 9 of the upper frame side plate shaft center 7 and the U-shaped groove 14 are fitted with each other with an appropriate margin. In addition, the decorative cover 22 that covers the door-side lower pivot may be set larger in the upward direction in accordance with the required vertical adjustment width.

It is a vertical side view of the pivot hinge of the present invention. It is the vertical accommodation side view of the frame side of the pivot hinge of this invention. It is a vertical side view of the pivot hinge of the present invention on the door side. It is the upper side figure and side view of a frame side plate of the pivot hinge of this invention. It is a perspective view of the axis for frame side plates of the pivot hinge of the present invention. It is a top view of the frame side lower pivot of the pivot hinge of the present invention. It is the upper side figure and side view of a door side plate of the pivot hinge of this invention. It is a perspective view of the axis for door side plates of the door side upper pivot of the pivot hinge of the present invention. It is a perspective view of the shaft center for door side plates of the door side lower pivot of the pivot hinge of the present invention. It is a top view of the door side lower pivot of the pivot hinge of the present invention. It is a side view of the lower pivot of the pivot hinge of this invention in the state adjusted largely upwards.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame side plate 2 Door side plate 3 Flat part 4 Mounting hole 5 Long hole 6 Rectangular throttle part 7 Frame side plate axial center 8 Hexagonal flange part 9 Shaft part 10 Bolt part 11 Left and right fixing nut 12 Door side plate axial center 13 Upper receiver 14 U-shaped groove 15 U-shaped bracket for upper receiver 16 Lid 17 Lower ring 18 U-shaped bracket for lower ring 19 Front and rear fixing nut 20 Non-rotating portion 21 Vertical adjustment nut 22 Cosmetic cover 23 Door 24 Frame

Claims (4)

A pivot hinge comprising an upper pivot and a lower pivot, the door being pivotably suspended in the frame body, and the installation can be adjusted, two pairs of frame side plates and straight doors having straight long holes A side plate is provided, and a door side plate shaft center and a frame side plate shaft center having a bolt portion are arranged in a state of passing through the long holes of the frame side plate and the door side plate. Set so that each shaft center can be fixed at an arbitrary position in the long hole by sandwiching the door side plate or frame side plate with one nut, and one long hole and the other long hole are on the top surface The door-side plate and the frame-side plate are arranged in the vertical direction so as to form a cross shape when viewed, and the frame-side plate axis and the door-side plate axis are fitted in a straight line in the vertical direction. A building characterized by Only adjustment function with a pivot hinge. The long hole of the frame side plate is set in the left-right direction parallel to the door surface, the long hole of the door side plate is set in the front-rear direction perpendicular to the door surface, and the collar part and the bolt part that can be rotated with a jig A frame-side plate shaft center with a shaft part is passed through a long hole in the frame-side plate and attached with a nut, and a door-side plate shaft center with a bolt part is passed through a long hole in the door-side plate with a nut It is possible to adjust the movement independently in the front-rear direction and the left-right direction within the range of the long holes of the door side plate and frame side plate when the shaft center and plate tightening with the nut are loosened The pivot hinge with a building adjustment function according to claim 1. A vertical adjustment nut is further incorporated into the bolt part of the shaft center of the door pivot of the lower pivot so that the door plate is sandwiched between two nuts. The upper nut of the door plate is loosened greatly, and the lower vertical It is possible to adjust the installation in the vertical direction by rotating the adjustment nut upward and lifting the door side plate, and by further forming the bolt part of the shaft center for the door side plate much longer, the vertical adjustment can be made larger. 3. The pivot hinge with a building adjustment function according to claim 1, wherein the pivot hinge can be widely applied to various doors having different settings of the vertical position of the door with respect to the frame. The frame side plate with the frame side plate axis attached to the upper and lower positions of the frame is fixed so that it faces each other, and the door side plate axis with the lower ring attached to one door side plate is attached to the lower position of the door Attach the door side plate axis with the U-shaped grooved upper receiver to the other door side plate and fix it to the upper position of the door, and the lower frame side plate axis to the lower ring The lower pivot is inserted, the upper frame side plate shaft is hooked with the U-shaped groove of the upper receiver, and the door can be suspended by using a means to cover the U-shaped groove. The pivot hinge with a building adjustment function according to any one of claims 1 to 3.

Images