JPH10311174A - Door bearing top pivot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an adjust-screw adjusted once from being loosened, and to make it possible to attach a door to a doorway always in a right state. SOLUTION: A door bearing top pivot is constituted of a guide member 13, an adjust-screw holding member 15 to be attached to the inside of the guide member 13, an adjust-screw 16 borne on the adjust-screw holding member 15 in a rotatable manner around the horizontal axial-core and a bearing member 7 having a female screw hole 7 screwed in a male screw 16a of the front end of the adjust-screw 16 and sliding along the guide member 13 inside of the guide member 13 by turning the adjust-screw 16. Then, a looseness prevention device constituted by screwing a screw 18 pushing the head 16b of the adjust- screw 16 against the adjust-screw holding member 15 in a female screw hole of the adjust-screw holding member 15 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top pivot for supporting a door.

[0002]

2. Description of the Related Art As a conventional top pivot for supporting a door of this type, for example, a top pivot configured as shown in FIGS. 11 to 13 is known.

[0003] Referring to the drawings, reference numeral 1 denotes a door rotatably provided at a doorway 2 of a building, and a lower end of the door 1 on a pivoting side is, for example, a floor hinge embedded in a floor surface. (Not shown), and a pivot shaft 5 protruding downward from a top pivot 4 on the upper frame 3 side attached to the upper frame 3 of the building at the upper end of the door 1 on the pivoting side. It is fitted and supported in the hole 8 of the bearing member 7 of the mounted top pivot 6 on the door 1 side.

By the way, the top pivot 6 on the door 1 side
The pivot shaft 5 so that the door 1 fits correctly in the doorway 2.
There is provided an adjusting mechanism for adjusting the position of the hole 8 of the bearing member 7 to be fitted with. The top pivot 6 on the door 1 will be described in detail.
Is a base 11 attached to the upper end recess 9 of the door 1 by a screw 10, a U-shaped guide member 13 attached to the base 11 by a screw 12, and a screw in the guide member 13.
An adjusting screw receiving member 15 attached by the mounting screw 14; an adjusting screw 16 rotatably supported by the adjusting screw receiving member 15 around a horizontal axis; and a male screw portion 16a at the tip of the adjusting screw 16
And the bearing member 7 which slides horizontally along the guide member 13 inside the guide member 13 by turning the adjusting screw 16. More specifically, a long hole (not shown) is formed in the bottom of the guide member 13 and in the base 11 in contact with the bottom of the guide member 13 so as to communicate with the hole 8 of the bearing member 7 within the sliding range of the bearing member 7. Are formed. The top pivot 6 on the side of the door 1 is provided with the recess 9 formed at the upper end of the door 1.
The upper surface of the bearing member 7 is mounted so as to be flush with the upper end surface of the door 1, and the adjustment screw 16 can be adjusted from the widthwise end of the door 1 on the pivoting side of the door 1. ing.

Therefore, when the door 1 is supported at the doorway 2 of the building, the position of the hole 8 of the bearing member 7 fitted with the pivot shaft 5 is adjusted by the adjusting screw 16 so that the door 1 is properly fitted into the doorway 2. Is adjusted by sliding the bearing member 7. However, the adjusting screw 16 is not provided with a locking means, and after the adjustment, the bearing member 7 is disengaged from the door 1.
There is a problem that the adjusting screw 16 is loosened by the force transmitted to the adjusting screw 16 through the opening and the door 1 is inclined with respect to the entrance 2.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and it is an object of the present invention to eliminate a loosening of an adjusting screw once adjusted so that a door is always attached to an entrance in a correct state. It is assumed that.

[0007]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides a guide member, an adjustment screw receiving member mounted in the guide member, and a rotation of the adjustment screw receiving member about a horizontal axis. An adjusting screw which is supported so as to be supported, and a bearing member which has a female screw hole to be screwed with the male screw portion at the tip of the adjusting screw and slides along the guide member inside the guide member by turning the adjusting screw. The invention provides a door support top pivot which is provided with locking means for adjusting screws for adjusting the position of a bearing member. The gist of the present invention is that the locking means is formed by screwing a screw for pressing the head of the adjusting screw against the adjusting screw receiving member into the female screw hole of the adjusting screw receiving member. Further, according to the present invention, a step portion bulging outward is formed on the head of the adjusting screw, and one side of the head of the screw is engaged with the step of the head of the adjusting screw,
The gist of the invention is that the other side of the head of the screw is configured to be locked to the end face of the guide member. Furthermore, the gist of the present invention is that the head of the adjusting screw has a hexagonal shape, and a part of the outer periphery of the head of the screw comes into contact with the outer peripheral surface of the head of the adjusting screw.

According to this structure, since the adjusting screw for adjusting the position of the bearing member is provided with a locking device, it is possible to prevent the adjusting screw from being loosened after the adjustment, so that the door is always correct at the entrance. It can be mounted in a state.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same reference numerals as those in the conventional example denote the same members, and a detailed description thereof will be omitted.

First, a first embodiment shown in FIGS. 1 to 4 will be described. The first embodiment differs from the conventional example in that an adjustment screw 16 is provided on a top pivot 6 on the door 1 side. After adjusting the adjusting screw 16 to eliminate the looseness of the screw, a screw 18 for pressing the circular head 16b of the adjusting screw 16 against the adjusting screw receiving member 15 is used.
This is a point provided so as to be screwed into the 15 female screw holes 15a. In the embodiment shown in the drawing, the heads 18a of the two screws 18 are tightened with the two screws 18 so that the circular head 16b of the adjusting screw 16 is formed.
Lock the adjustment screw 16 by locking it from both sides to the step 16 c
The number of screws 18 is not limited to two, and the adjusting screw 16 is prevented from being loosened by a configuration other than the tightening of the screws 18. Is also good. The other configuration is the same as that of the conventional example, and the detailed description thereof is omitted.

By the way, in the conventional example and the first embodiment of the present invention, the adjusting screw 16 can be adjusted from the widthwise end of the door 1 on the pivoting side. In the case of the door 1 whose upper end is open, the adjustment screw 16 can be adjusted from above the door 1. Further, the top pivot 6 provided on the door 1 side may be provided on the upper frame 3 side, and the top pivot 4 provided on the upper frame 3 side may be provided on the door 1 side.

Next, a second embodiment shown in FIGS. 5 to 7 will be described. In the top pivot 6 on the door 1 side, the adjusting screw 16 is adjusted after the adjusting screw 16 is adjusted in order to eliminate the loosening of the adjusting screw 16. A screw 18 for pressing the 16 circular heads 16b against the adjusting screw receiving member 15 is provided to be screwed into the female screw hole 15a of the adjusting screw receiving member 15, more specifically, two screws 18 are tightened. Book Screw 18 Head 18
A is similar to the first embodiment in that a is locked from both sides to the step 16c of the circular head 16b of the adjusting screw 16 to prevent the adjusting screw 16 from being loosened. In the second embodiment, in addition to such a configuration, by tightening each screw 18 on both sides of the adjusting screw 16, the head of each screw 18 is formed.
The guide member 18a is also configured to engage with the end face of the guide member 13. That is, one side of the head 18a of each screw 18 is an adjustment screw.
The screw 18 is hardly loosened by engaging with the step 16c of the 16 circular head 16b and the other side of the head 18a of each screw 18 with the end face of the guide member 13. Can be maintained for a long period of time.

Further, a third embodiment shown in FIGS. 8 to 10 will be described. In the top pivot 6 on the door 1 side, the adjusting screw 16 in the first and second embodiments is used.
The head 16b of the circular head 16b is circular.
In the third embodiment, the head 16b of the adjusting screw 16 is hexagonal, and the head 16b of the adjusting screw 16 is attached to the head 16b of the adjusting screw 16 in the third embodiment. 16c is not formed and the head 16b of the adjusting screw 16 is adjusted after the adjusting screw 16 is adjusted.
Two screws 18 are provided on two surfaces 16d of the six surfaces on the outer periphery of
The head 18a is configured so that a part of the outer periphery of the head 18a comes into contact with the head 18a, so that the adjusting screw 16 is prevented from loosening. In the third embodiment, a part of the outer periphery of the head 18a of the two screws 18 is in contact with two inclined surfaces 16d located on both sides of the upper end of the head 16b of the adjusting screw 16. But,
The surface on which the heads 18a of the two screws 18 abut may be a surface other than the embodiment shown in the drawings. Further, in the third embodiment, the outer surface of the male screw portion 16a at the distal end of the adjusting screw 16 is fused using a nylon resin or the like, and the male screw portion 16a at the distal end is screwed into the screw hole 17 of the bearing member 7. In this state, the outer surface of the male screw portion 16a is configured to contact the screw hole 17 of the bearing member 7 with a small gap via a nylon resin or the like.

[0014]

As described above, according to the present invention, since the adjusting screw for adjusting the position of the bearing member is provided with the anti-loosening means, it is possible to prevent the adjusting screw from being loosened after the adjustment. Yes, the door can always be installed in the doorway in the correct state.

[Brief description of the drawings]

FIG. 1 is a perspective view of a door-side top pivot according to a first embodiment of the present invention.

FIG. 2 is a plan view of a top pivot on the door side.

FIG. 3 is a fragmentary side view showing a state where the door is supported using a top pivot on the door side.

FIG. 4 is a fragmentary front view showing a state where the door is supported using a top pivot on the door side.

FIG. 5 is a perspective view of a door-side top pivot according to a second embodiment of the present invention.

FIG. 6 is a plan view of a top pivot on the door side.

FIG. 7 is a fragmentary side view showing a state where the door is supported using a top pivot on the door side.

FIG. 8 is a perspective view of a door-side top pivot according to a third embodiment of the present invention.

FIG. 9 is a plan view of a top pivot on the door side.

FIG. 10 is a fragmentary side view showing a state where the door is supported using a top pivot on the door side.

FIG. 11 is a perspective view of a door-side top pivot in a conventional example.

FIG. 12 is a fragmentary side view showing a state where the door is supported using a top pivot on the door side.

FIG. 13 is a fragmentary front view showing a state where the door is supported using a top pivot on the same door side.

[Description of Signs] 1 door 2 doorway 3 upper frame 4 upper frame side top pivot 5 pivot shaft 6 door side top pivot 7 bearing member 8 hole 9 recess 11 base 13 guide member 15 adjustment screw receiving member 15a female screw hole 16 adjustment Screw 16a Tip male screw part 16b Head 16c Step 16d Surface 17 Female screw hole 18 Screw 18a Head

Claims (4)

[Claims] A guide member, an adjusting screw receiving member mounted in the guide member, and an adjusting screw rotatably supported on the adjusting screw receiving member around a horizontal axis.
A top pivot for door support, comprising a female screw hole to be screwed into a male screw portion at the tip of the adjusting screw, and a bearing member that slides along the guide member inside the guide member by turning the adjusting screw. A top pivot for supporting a door, wherein a loosening preventing means is provided for an adjusting screw for adjusting the position of the bearing member. 2. The locking device according to claim 1, wherein the locking means is formed by screwing a screw for pressing a head of the adjusting screw against the adjusting screw receiving member into a female screw hole of the adjusting screw receiving member. Top pivot for door support. 3. The step of bulging outward on the head of the adjusting screw, one side of the head of the screw is engaged with the step of the head of the adjusting screw, and the other side of the head of the screw is formed. 3. The top pivot for door support according to claim 2, wherein the portion is configured to be engaged with an end surface of the guide member. 4. The adjusting screw according to claim 2, wherein the head of the adjusting screw is hexagonal, and a part of the outer periphery of the head of the screw is in contact with the outer peripheral surface of the head of the adjusting screw. Top pivot for door support.