JP2001055859A - Pivot hardware for door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform an adjustment of a door vertical position and a shaft fixing operation after the adjustment, in a door comprising a door and a frame body. SOLUTION: This pivot hardware for door is formed so that a fixed plate 3 is provided in proximity to a surface in parallel with a frame side lower pivot 1 and screwed with the pivot using a male screw part 8 on a shaft 2. After the shaft 2 is rotated to perform the positional adjustment thereof, a fixing screw 4 is tightened to press the threads of the male screw part 8 on the shaft 2 against a shaft screwing thread hole 5 in the frame side pilot 1 and a shaft screwing thread hole 6 in the fixed plate 3 in order to fix the pivot to the plate easily and completely without damaging the threads thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pivot metal fitting for a pivot hinge used when attaching a door to a frame.

[0002]

2. Description of the Related Art Conventionally, in position adjustment of a door and a frame body in a height direction, a shaft and a pivot bracket are formed by screwing screws, and the position is adjusted without removing a door by rotating the shaft. Has already been reported.

[0003] Among them, in the fixing method after the adjustment in the height direction, as described in Japanese Utility Model Laid-Open Publication No. 50-143336, a male screw portion of a shaft is pressed from the lateral side with the tip of another screw. There is a set screw method that stops. Japanese Patent Application Laid-Open No. Hei 8-199892 discloses a double nut method in which a fixing nut is inserted under a bearing seat of a shaft, and a nut and a screw portion of a main body plate are tightened and fixed. A side-by-side washer system has been reported in which a horseshoe-shaped washer is inserted from the side into the formed gap, and the shaft is returned and fixed.

[0004]

However, in the case of the set screw method, the tip of the set screw may damage the thread of the male screw portion of the shaft, and in the case of the double nut method, it must be tightened with two tools. The work is performed using both hands, and the workability may be deteriorated particularly when the engagement portion of the tool is narrow. The washer horizontal insertion method is not only a step-by-step adjustment, but if the washer is thinned to reduce the number of steps and multiple pieces are inserted, the washer will rotate when it is fixed, and there is a risk that it will slip or slip. is there. In addition, in the double nut method and the washer horizontal insertion method, it is necessary to tighten it to some extent so that the shaft does not rotate when hanging the door, and after hanging the door, when adjusting upward, not only the weight of the door, A torque for returning the shaft itself is also required, and there is a concern that the initial load for adjustment is heavy.

Further, the above three points have in common that the operation for fixing after adjustment is always performed from the side of the pivot bracket, and the operation is performed at the lowest narrow end of the lower frame end of the door. The point is that work becomes difficult because of the construction of cancer.

Accordingly, the present invention has been made to solve the above problems, and the height of the door can be adjusted without removing the door.
It is another object of the present invention to provide a pivot fitting characterized by providing fixing means with good operability.

[0007]

The following technical measures are taken to solve the above-mentioned problems. A fixing plate is provided adjacent to a plane parallel to the lower pivot of the frame, and both have a screw hole portion to be screwed with the male screw portion of the shaft portion, and the male screw portion of the shaft is screwed into both screw holes. .

In the invention according to claim 2, a fixing screw hole is provided at a position overlapping the fixing plate of the lower pivot on the frame side, and the fixing screw is attached from above. When the fixing screw is turned, the end of the fixing screw hits the fixing plate, and the frame-side lower pivot and the fixing plate are pushed and expanded. At this time, the lower pivot on the frame side and the fixing plate are screwed together with the male screw portion of the shaft, and when pushed and expanded by the fixing screw, the shafts of the shaft project from each other and are completely fixed. Therefore, it is preferable to adjust the position in the height direction by rotating the shaft before fixing, and then completely tighten the fixing screw.

In the invention according to claim 3, a fixing screw is attached so as to operate in a plane direction parallel to the lower pivot on the frame side, and when the fixing screw is turned, the tip of the screw presses the side surface of the fixing plate, and the lower end of the frame side lowers. The male screw part of the shaft is sandwiched from the side by the screw hole of the pivot and the fixing plate, and the shaft can be fixed.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG.
The present invention relates to a frame-side lower pivot of a pivot hinge for pivotally attaching the door to the frame in the door including the frame 3 and the frame 12. FIG. 1 is a perspective view of a pivot bracket according to the second aspect of the present invention. FIG. 2 is an exploded perspective view of FIG.
FIG. 3 shows before and after the fixing of the shaft of the AA ′ section of FIG.

As shown in FIGS. 1 and 2, the frame-side lower pivot 1 is attached to the frame 12. The frame side lower pivot 1 is provided with a screw hole 5 for screwing the shaft and a screw hole 7 for the fixing screw. The shaft 2 includes a head 10 into which a pivot on the door side is fitted, and a male shaft thread portion 8 for screwing with the receiving seat 9 and the lower pivot 1 on the frame side.
The fixing plate 3 is also provided with a screw hole 6 for screwing the shaft, and is located close to the lower surface of the lower pivot 1 on the frame side. At this time, it is necessary to set the size and shape of the fixing plate 3 so that the fixing plate 3 always covers the position of the fixing screw screw hole 7 of the frame-side lower pivot 1.

At the stage of hanging the door, as shown in FIG. 1, the male shaft screw portion 8 is screwed to the shaft screw screw hole 5 of the lower pivot 1 on the frame side and the screw screw hole 6 of the fixing plate 3 to the end. Then, the frame-side lower pivot 1 and the fixing plate 3 are stopped by the fixing plate rotation preventing pin 11 in a state of being brought close to each other. Further, the fixing screw 4 is inserted into the screw hole 7 for the fixing screw of the lower pivot 1 on the frame side.
Screw. As an adjustment sequence, when the fixing screw 4 is not tightened when the door is hung, an operation of tightening the fixing screw 4 is required even when there is no need to adjust the height. In addition, when the fixing screw 4 is tightened in the hanging stage, an operation of loosening the fixing screw 4 in advance is required for adjustment.

The shaft 2 is rotatable by a tool such as a hexagonal receiving seat as shown in FIG. 2 or a hexagonal hole in the head as shown in FIG. So that position adjustment in the vertical direction is possible. Next, as shown in FIG. 3, the shaft 2 is turned to adjust the height to a desired position. Thereafter, the shaft 2 and the frame-side lower pivot 1 are completely fixed only by tightening the fixing screw 4.

FIG. 4 shows the principle of fixing. As shown in FIG. 4A, when the fixing screw 4 does not push the fixing plate 3, the male screw portion 8, the screw screw hole 5 of the frame-side pivot 1, and the screw screw hole 6 of the fixing plate 3 are provided. Both have appropriate clearances (gap), and in this state, the shaft 2 rotates smoothly and moves up and down. However, FIG.
When the fixing screw 4 is tightened as shown at -2, the tip of the fixing screw 4 presses the fixing plate 3, and the interval between the lower pivot 1 on the frame side and the fixing plate 3 is widened, and both the shaft screwing screw holes 5 and 6 and the male shaft screw. The clearance with the portion 8 is eliminated, and the shaft 2 can be stopped, and the rotation of the shaft 2 can be stopped by generating a large frictional force.

The gap between the lower pivot 1 on the frame side and the fixed plate 3 is generated by the pitch of the screws used and the thickness of the lower pivot 1 and the fixed plate 3 on the frame side. There may be no state. Since the amount of pushing of the tip of the fixing screw 4 is only the clearance of the screw thread, the movement of the fixing screw 4 can be reduced and the operability can be improved. Also, the means for pushing and pulling the fixing plate 3 is not limited to the method using screws, and any other method may be used.

Further, since the shaft 2 is not fixed by the tightening torque of the shaft male screw portion 8 and the shaft screwing screw hole 5 of the lower pivot 1 on the frame side, the lower portion of the shaft at the time of suspension is not fixed. Pivot 1
The strength of the tightening of the shaft 2 into the shaft may be a very small force, that is, the initial load required when adjusting upwards will hardly include the torque that returns the tightening of the shaft itself. Therefore, the initial force when adjusting upward is relatively light, and only the force for lifting the weight of the door is sufficient.

As shown in FIG. 7, when the door 13 is opened by 90.degree., The fixing screw 4 can be turned from above. When the door 13 is set at a position where it does not interfere with the door-side pivot, the fixing work can be more easily performed. . Further, if the height of the shaft 2 can be adjusted from the upper portion as shown in FIG. 6, all operations can be performed from the upper surface of the pivot, so that easier adjustment is possible.

There are many possible embodiments using this mechanism, but the basic principles are all the same. The main ones are shown in FIG. FIG. 5-1 shows a type in which two fixing screws are used to press the fixing plate, and FIG. 5-2 shows a type in which two fixing screws are used to attract the fixing plate. If two fixing screws are used, the force can be evenly applied, which is more effective. FIG. 5C is an embodiment which is intermediate between FIGS. 3 and 5A, and uses a single fixing screw to apply force relatively uniformly. FIG. 5-4 shows a method in which the frame-side pivot itself has a double structure, a space is provided in the center with ribs and the like, and the space portion is attracted and fixed, which is suitable for increasing the overall strength.

FIG. 8 is a perspective view of a pivot fitting according to the third aspect of the present invention. Fixing screw 4a is frame side lower pivot 1a
The screw hole 7a for the fixing screw is positioned so as to be parallel to the surface of the fixing plate 3a, and the side surface of the fixing plate 3a is pressed horizontally by turning the fixing screw 4a. The fixing plate 3a is held with a certain amount of play by the fixing plate rotation preventing pin 11a so as not to be rotated by the fixing screw 4a when pressed.

FIG. 9 is a sectional view showing an embodiment in which the frame-side lower pivot 1a is constituted by two plates, and the fixed plate 3a is interposed therebetween. In this embodiment, the fixing screw 4
This is a more effective method because the male screw portion of the shaft 2 can be prevented from tilting when the fixing plate 3a is pushed in at a.

FIG. 10 shows the principle of fixing the pivot 2 of the pivot fitting according to the third aspect of the present invention. FIG. 10 shows the state in which the fixing screw 4a does not push the side surface of the fixing plate 3a.
As shown in FIG. 1, the shaft male screw portion 8, the shaft screw hole 5a of the frame-side pivot 1a, and the shaft screw hole 6a of the fixing plate 3a both have a clearance (gap). 2 rotates smoothly. When the fixing screw 4a is turned and the fixing plate 3a is pushed in, as shown in FIG. 10-2, the shaft male screw portion 8 is sandwiched by a plurality of female screw portions, generating a large frictional force and stopping the rotation of the shaft 2. , 2 can be fixed at any position.

[0022]

As is apparent from the above description, in the pivot bracket of the type in which the height of the door is adjusted by rotating the shaft by screwing the screw portion provided on the shaft, the same size is used for a plurality of plates. The female screw part of the shaft is screwed into both the male screw part of the shaft and the male screw part of the shaft at the same time. The shaft after the adjustment can be easily and reliably fixed. Furthermore, this mechanism does not have to worry about damaging the thread when the shaft is fixed.

In the above mechanism, the lower pivot on the frame side and the shaft may be weakly tightened when the door is hung, and almost no torque is included for returning the tightening of the shaft itself during upward adjustment. Therefore, the force required for the adjustment is only a load for lifting the weight of the door, and the initial force for the upward adjustment is small.

According to the second aspect of the present invention, as shown in FIG. 7, the fixing screw is set at a position where it does not overlap with the pivot metal fitting on the door side when the door is opened by 90 °, so that the fixing after the height adjustment is performed. Is possible only by opening the door and turning with a screwdriver from above. Therefore, troublesome work using a tool at a narrow and low position on the hanging side is not required.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pivot fitting according to the invention of claim 2;

FIG. 2 is an exploded perspective view of a pivot fitting according to the invention of claim 2;

FIG. 3 is a cross-sectional view showing a pivot bracket according to the second aspect of the present invention before and after the shaft is fixed.

FIG. 4 is a schematic view showing the principle of a method of fixing a pivot metal shaft according to the invention of claim 2;

FIG. 5 is a main embodiment diagram showing a method of fixing a pivot metal shaft according to the invention of claim 2;

FIG. 6 is a perspective view of a type in which the height can be adjusted from the upper part of the pivot fitting according to the second aspect of the present invention.

FIG. 7 is a plan view in which a fixing screw of the pivot fitting according to the second aspect of the present invention is set at a position where the fixing screw can be turned from above when the door is opened.

FIG. 8 is an exploded perspective view of a pivot fitting according to the third aspect of the present invention.

FIG. 9 is a sectional view of a pivot fitting according to the invention of claim 3;

FIG. 10 is a schematic view illustrating the principle of a method of fixing a pivot bracket according to the invention of claim 3;

FIG. 11 is a front view of a door provided with a pivot fitting according to the present invention.

[Explanation of symbols]

 1, 1a Frame-side lower pivot 2 shaft 3, 3a Fixing plate 4, 4a Fixing screw 5, 5a Screw hole for shaft screwing (frame-side lower pivot) 6, 6a Screw hole for shaft screwing (fixing plate) 7, 7a Fixing screw Screw hole 8 Shaft male screw part 9 Receiving seat 10 Head 11, 11a Fixing plate detent pin 12 Frame 13 Door

[Procedure amendment]

[Submission date] November 16, 2000 (200.11.
16)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

Claims (3)

[Claims] In a door comprising a door and a frame, a plate-shaped lower pivot metal fitting on a lower side of the frame body and a shaft portion rotatably fitted with the pivot metal fitting on the door side are provided. Provide. A screw hole is provided in the frame-side lower pivot, and a male screw portion is provided in the shaft portion so as to be screwable, so that the height can be adjusted by rotating the shaft portion, and at a position parallel to the frame-side lower pivot surface. A pivot fitting provided with a fixing plate having a screw hole capable of being screwed with a male screw portion of the shaft portion. 2. A shaft lower part pivot and a fixing plate are both screwed into the shaft part, and the fixing plate is pushed or pulled from a position other than the shaft part from an upper surface of the frame side lower pivot to thereby form the shaft. The method according to claim 1, wherein an action of stretching or pinching the thread of the male screw at a plurality of positions can be obtained, and the shaft and the lower pivot on the frame side can be fixed at an arbitrary position after adjusting the height via the fixing plate. The pivot bracket described. 3. A frame-side lower pivot and a fixing plate are screwed together to a shaft portion, and a side surface of the fixing plate is pressed in a horizontal direction with respect to the frame-side lower pivot, so that a thread of the shaft is formed at a plurality of female screw portions. 2. The pivot fitting according to claim 1, wherein the pivot metal fitting can be fixed at an arbitrary position after adjusting the height of the shaft portion and the frame-side lower pivot via a fixing plate by increasing a pressing force from a lateral direction.