JPH0585972U - Pivot hinge - Google Patents

Abstract

(57) [Summary] [Purpose] The pivot hinge facilitates the work of adjusting the mounting position in the lateral direction of the door. [Structure] A base plate 1 in which a protruding portion 1c is bent from the tip of a substrate 1a, an arm in which a protruding portion 5b is bent from the tip of a fixed plate 5a, and a cover plate 2 in which a fulcrum shaft 3 is erected.
Have and. The cover plate 2 is horizontally rotatably supported on the upper surface of the base plate 1, and its fulcrum shaft 3 is supported by the arm 5.
Is rotatably inserted into a shaft hole 5c penetrating the protruding portion 5b. The fixing screw 7 is inserted from above into the central hole 3c of the fulcrum shaft 3 and the elongated hole 1d penetrating the protruding portion 1c of the base plate 1, and the tip of the fixing screw 7 is fixed to the fixing nut 8 abutting the lower surface of the protruding portion 1c. The door 12 is screwed together with the cover plate 2 in the lateral width direction to adjust the mounting position, and the fixing screw 7 is tightened to mount the door 12 at a predetermined position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pivot hinge for pivotally attaching an upper portion and a lower portion of a door to a door mounting body so that the door can be opened and closed by rotation, and more particularly, to a pivot hinge having a door mounting position adjusting mechanism.

[0002]

[Prior Art]

 Conventionally, as a pivot hinge having a door mounting position adjusting mechanism, those shown in FIGS. 5 and 6 are known.

In the pivot hinge shown in FIG. 5, a vertical hole penetrating vertically is formed in a shaft connecting portion c of a connecting arm b fixed to one side upper and lower ends of a door a, and the long hole d is formed in the building. A rotation shaft e provided on the S side is loosely fitted so as to be horizontally movable in the lateral width direction of the entrance / exit of the building S, and has a female screw hole penetrating outward from both ends of the elongated hole d at the connecting portion c. Adjusting screws h and i are respectively screwed into f and g so that the tips of the adjusting screws h and i are brought into contact with both side surfaces of the rotary shaft e. , I by adjusting the amount of screwing in from the left and right to move the connecting arm b horizontally with respect to the rotation axis e, thereby tilting the door a and between the frame j of the building c and the door a. Gap adjustment can be performed.

The pivot hinge shown in FIG. 6 is provided with one mounting member 1 mounted on the pillar k or the like and the other mounting member m mounted on the upper and lower end surfaces of the door a, from the support plate portion of the mounting member l. The support shaft n is erected, and the bearing plate portion q fitted on the support shaft n is provided in the mounting hole p formed in the receiving plate portion o of the mounting member m so that a gap is formed on the left and right thereof. The bearing plate portion q is loosely fitted, and a screw shaft r is screwed in the left and right direction of the bearing plate portion q. The rotation operation performed from the lateral direction of the screw r causes the other mounting member to be attached to the support shaft n. By moving m in the lateral direction of the door a, the door a can be adjusted in the lateral direction with respect to the pillar k or the like.

[0005]

[Problems to be solved by the device]

 However, in the conventional pivot hinge shown in FIG. 5 and the conventional pivot hinge shown in FIG. 6, the operation for adjusting the mounting position of the door must be performed by rotating the driver or the like from the lateral direction. However, the workability is poor.

The present invention has been made in view of the above problems of the conventional pivot hinge, and a cover plate which is provided between the base plate and both the protrusions of the arm and which has the fulcrum shaft fixed and stands upright is provided. The fulcrum shaft is rotatably inserted into the shaft hole in the protruding part of the arm by rotatably supporting the upper surface of the protruding part of the base plate horizontally, while the central hole of the fulcrum shaft and the long hole in the protruding part of the base plate. The fixing screw is inserted into the base plate, and the tip of the fixing screw is screwed to the fixing nut that is placed in contact with the lower surface of the protruding portion of the base plate.By doing so, it is possible to easily adjust the lateral width of the door. That is the purpose.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention bends a protruding portion from a tip of a substrate, and a base plate having a long hole penetrating the protruding portion at a right angle to the protruding direction and a tip of a fixing plate. The arm is provided with a shaft hole penetrating through the protruding portion and a cover plate on which a fulcrum shaft penetrating the central hole is fixedly erected on the upper surface in the vicinity of the end portion. In the above, the cover plate is rotatably supported horizontally on the upper surface of the protruding portion of the base plate, and the fulcrum shaft is rotatably inserted into the shaft hole, while the fixing screw is inserted into the center hole and the long hole. Then, a pivot hinge is provided, the tip of which is located on the lower surface of the protruding portion and is screwed to a fixing nut that is disposed in contact with the periphery of the lower end opening of the elongated hole.

[0008]

[Action]

 First, the base plate is fixed on the inner surface of the vertical frame of the door mounting body or the like by fixing it to the door suspension side with a screw, and the protruding portion is projected forward. When the cover plate is stacked on the upper surface of the protrusion, the base is pivotally supported on the base of the protrusion so as to be horizontally rotatable by a rotation shaft such as a screw, and the fulcrum shaft is at the front. Make it protrude upward. On the other hand, the arm has its fixing plate on the end face of the door, and is fixed to the suspension base by fixing it with a screw, and the protruding portion thereof is projected forward.

By inserting the fulcrum shaft into a shaft hole formed in the protrusion of the arm so that the fulcrum shaft is rotatable, both protrusions of the arm and the base plate are opposed to each other at a vertical position, and the fulcrum shaft is penetrated. When the center hole of the base plate and the long hole that extends vertically through the protruding part of the base plate are aligned, insert the fixing screw into the center hole and the long hole from above, and insert the tip of the fixing screw from above into the bottom hole. And is screwed into a fixing nut that is disposed in contact with the periphery of the lower end opening of the elongated hole on the lower surface of the protruding portion of the base plate.

Therefore, in a temporarily fixed state where the fixing screw and the fixing nut are not tightened but only screwed together, when the door is held and the door is moved in the lateral width direction, the shaft at the protruding portion of the arm By inserting the fulcrum shaft into the hole, the cover plate is rotated horizontally about the rotation axis of its base and in the width direction of the door, thereby moving and adjusting the door in the width direction. be able to.

After moving the door in the lateral width direction to the door mounting body and adjusting the door to a predetermined position, the fixing screw is rotated and screwed with the fixing nut, so that the protruding portion of the base plate and the cover plate are And, the fulcrum shaft is tightened and fixed together, and the door installation is completed. When the door is opened, the upper surface of the protruding portion of the base plate, that is, the base portion of the cover plate is exposed from the rear side of the protruding portion of the arm.Therefore, tighten the rotating shaft with a screw or the like to separate the protruding portions of the cover plate and the base plate. They may be fixed together.

[0012]

Embodiment An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the base plate 1 is formed in a substantially L-shape on the front by bending the mounting plate 1b from one side of the substrate 1a upward at a right angle, and is forward from the base plate 1a. The projecting portion 1c extends horizontally, and the projecting portion 1c is provided with a long hole 1d that is long in the width direction on the left and right of the projecting portion 1c.

The cover plate 2 is formed to have substantially the same size as the substrate 1a and the projecting portion 1c of the base plate 1, and an outer peripheral edge 2a is bent downward from the front end of the front end portion to both left and right sides.

Further, a shaft mounting hole 2b is vertically provided in the cover plate 2, and a lower end portion 3a of a fulcrum shaft 3 around which a flange 3b is provided is fitted into the shaft mounting hole 2b to form the flange 3b. Are stacked on the upper surface of the cover plate 2, and in this state, the lower end portion 3a is caulked, so that the fulcrum shaft 3 is fixedly erected on the cover plate 2.

The fulcrum shaft 3 is provided with a central hole 3c extending axially therethrough, and an enlarged concave hole 3d is continuously provided at the upper end of the central hole 3c. An upward step 3e for receiving the head of the screw 7 is provided around the screw.

The cover plate 2 is rotatably supported on the base plate 1 a and the protrusion 1 c of the base plate 1 such that the base part 2 c is rotatably supported on the base plate 1 a by a rotary shaft 4 such as a screw. ing.

Next, the arm 5 is formed in a substantially L-shaped plane by bending the protruding portion 5b forward from one end of the fixed plate 5a at a right angle, and the fulcrum shaft 3 and the fulcrum shaft 3 are formed on the protruding portion 5b. Correspondingly, the shaft hole 5c is vertically penetrated.

The shaft hole 5c of the arm 5 may be a simple circular hole into which the fulcrum shaft 3 can be fitted. However, as shown in FIGS. 1 and 2, the shaft hole 5c has a downward opening at the bottom thereof. The enlarged recessed hole 5d may be provided in series, and the thrust bearing 6 may be fitted into the enlarged recessed hole 5d.

Further, on the lower surface of the projecting portion 1c of the base plate 1, in the vicinity of the lower end opening portion of the elongated hole 1d, a counterbore 1e is formed in a semi-elliptical concave shape as clearly shown in FIG. On the bottom surface of the counterbore 1e, an uneven line is formed in the longitudinal direction of the long hole 1d as a slip stopper 1f.

The fixing nut 8 screwed with the fixing screw 7 is set such that the outer diameter thereof can be fitted in the elongated hole 1d and is movable in the longitudinal direction of the elongated hole 1d. A flange 8a for contacting the counterbore 1e is provided around the lower end in a substantially oval shape in a plan view, and the upper surface of the flange 8a is engaged with the cleat 1f provided on the counterbore 1e. Further, the non-slip 8b is formed in an uneven line as clearly shown in FIG.

In order to use the pivot hinge having the above structure, the door is pivotally attached to its mounting body by the following work. First, in the base plate 1, the mounting plate 1b and the mounting plate 1b are abutted against the inner surfaces of the lower horizontal frame 9a and the vertical frame 9b of the door mounting body 9 in FIGS. By fixing with screws 10 to the inner surface of the, the projecting portion 1c is projected forward.

In the illustrated base plate 1, the mounting plate 1b is stacked on the cover 11 and fixed to the inner surface of the vertical frame 9b by screws 10. Of course, at this time, the base plate 1 is in the door mounting body 9 and is fixed to the door suspension base side.

On the other hand, the arm 5 has its fixing plate 5a on the lower end surface 12a of the door 12 in the illustrated example, and is fixed to the door hanging side by screws 13, ... Let

Next, holding the door 12, the arms 5 and the projecting portions 5b, 1c of the base plate 1 are opposed to each other in a vertical arrangement, and the shaft hole 5c is rotatably inserted into the fulcrum shaft 3 so that the center hole of the fulcrum shaft 3 can be rotated. 3c and the elongated hole 1d in the protruding portion 1c of the base plate 1, the fixing screw 7 is inserted from above, and the tip thereof is screwed into the fixing nut 8 fitted to the counterbore 1e on the lower surface of the protruding portion 1c. Stop it.

Further, when the door 12 is held and moved in the lateral direction of the door indicated by the arrow B⇔B ′ in FIG. 2, the cover plate 2 moves the rotary shaft 4 of the base portion 2c through the fulcrum shaft 3. It rotates in the direction of the arrow B⇔B 'as the center, whereby the door 12 is displaced in the lateral width direction thereof within the effective length of the slot 1d.

After the door 12 is moved in the lateral direction and the mounting position of the door 12 is adjusted, the fixing screw 7 is rotated from above with a screwdriver or the like, and is screwed to the fixing nut 8. The projecting portion 1c of 1 and the cover plate 2 are tightened, and the mounting of the door 12 is completed.

In the present embodiment, the mounting plate 1b is bent upward so as to fix the base plate 1 to the inner surface of the vertical frame 9b of the door mounting body 9, but like the arm 5, a flat surface is formed. Of course, it may be formed in a substantially L-shape and fixed to the inner surface of the lower horizontal frame 9a of the door mounting body 9. 1 to 3, reference numeral 14 denotes a cover fitted on the protruding portion 5b of the arm 5.

[0028]

[Effect of the device]

 Since the present invention is configured as described above, with the fixing screw loosened, by moving the door in the lateral width direction, the cover plate rotates about the rotation axis. The door can be easily adjusted in the lateral direction, and at the same time, the fixing screw and the fixing nut are screwed together to tighten the cover plate and the protruding portion of the base plate, so that the door is not loosened at a predetermined position. Can be installed without occurring. Moreover, since the fixing screw can be rotated from above by an operation such as a driver, the workability thereof can be improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a pivot hinge according to an embodiment of the present invention in a door mounted state.

FIG. 2 is a sectional view taken along the line AA ′ in FIG.

FIG. 3 is a plan view showing a state in which a door is attached according to the above embodiment with a part thereof cut away.

FIG. 4A is a bottom view of a long hole and a spot facing portion in a protruding portion of a base plate, and FIG. 4B is a plan view of a fixing nut.

FIG. 5 is a vertical cross-sectional view of a main part showing a conventional example of a pivot hinge with a part cut away.

FIG. 6 is a plan view of an essential part showing another conventional example of the pivot hinge with a part thereof cut away.

[Explanation of symbols]

 1 Base plate 1a Substrate 1c Projection 1d Long hole 5b Projection 2 Cover plate 3 Support shaft 3c Center hole 5 Arm 5a Fixing plate 5c Shaft hole 7 Fixing screw 8 Fixing nut

Claims (1)

[Scope of utility model registration request] 1. A base plate in which a projecting portion is bent from a tip of a substrate, and a long hole is formed in the projecting portion in a direction perpendicular to the projecting direction, and a projecting portion is bent from a tip of a fixing plate. An arm having a shaft hole extending through the protrusion and a cover plate having a fulcrum shaft fixed through the center hole fixedly provided on the upper surface near the end are provided, and the protrusion of the base plate is provided between the protrusions. A cover plate is rotatably supported horizontally on the upper surface of the section, and a fulcrum shaft is rotatably inserted into the shaft hole. A pivot hinge formed by screwing a fixing nut on the lower surface of the protruding portion and abuttingly arranged around the lower end opening of the elongated hole.