JP3107785B2 - Top pivot for door support - Google Patents

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. 5 to 7 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 an adjusting screw attached to the guide member 13 by a screw 14. The adjusting screw has a receiving member 15, an adjusting screw 16 rotatably supported on the adjusting screw receiving member 15 around a horizontal axis, and a female screw hole 17 screwed with a male screw portion 16a at the tip of the adjusting screw 16. The bearing member 7 that slides horizontally along the guide member 13 inside the guide member 13 by turning the guide member 13. More specifically, a long hole (not shown) is formed in the bottom of the guide member 13 and 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. Is formed. The top pivot 6 on the side of the door 1 is mounted in the recess 9 formed at the upper end of the door 1 such that the upper surface of the bearing member 7 is flush with the upper end surface of the door 1. The adjustment screw 16 can be adjusted from the widthwise end on the side of the pivotal support.

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 turned to adjust the sliding of the bearing member 7. However, the adjusting screw 16 is not provided with a locking means, and is transmitted from the door 1 to the adjusting screw 16 via the bearing member 7 after the adjustment. Adjustment screw 1 by force
6, the door 1 is inclined with respect to the doorway 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 that is supported so as to be able to move to and away from the adjusting screw receiving member along the guide member inside the guide member by rotating the adjusting screw having a female screw hole to be screwed with the male screw portion at the tip of the adjusting screw; A top pivot for door support comprising a bearing member to be adjusted, and a hexagonal outer peripheral surface of the adjusting screw between a surface of the adjusting screw receiving member facing the bearing member and a flange provided on the adjusting screw. The gist of the present invention is that a spring for preventing the adjustment screw from coming loose is provided so as to abut against the spring.

With this configuration, the adjusting screw for adjusting the position of the bearing member is provided by a locking spring provided between the surface of the adjusting screw receiving member facing the bearing member and the flange provided on the adjusting screw. In addition, the looseness after the adjustment is prevented, and the door can always be attached to the doorway in a correct state.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment 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.

FIGS. 1 to 4 are different from the conventional example in that the surface of an adjustment screw receiving member 15 facing the bearing member 7 is provided at the top pivot 6 on the door side in order to prevent the adjustment screw 16 from loosening. The difference is that a spring 19 for preventing the adjusting screw 16 from loosening is provided between the adjusting screw 16 and the flange portion 18 provided on the adjusting screw 16.

More specifically, referring to the drawings, the locking spring 19 is formed by bending a wire into a gate shape so that a lower end portion 19a projects horizontally outward, and twists left and right as viewed from above. Has been added. The adjustment screw receiving member 15 has a U-shaped recess 15a formed from the lower surface so as to fit from above into a shaft portion between the head portion 16b of the adjustment screw 16 and the flange portion 18 from above.
Also, a recess 15b for sandwiching the locking spring 19 between the flange portion 18 and positioning the locking spring 19 is formed on the surface facing the flange portion 18. Notch portions 15c for fitting lower end portions 19a of the locking springs 19 at both side positions are formed on the lower surface of the adjusting screw receiving member 15. Further, the adjusting screw 16 has a hexagonal outer peripheral surface 20 at a portion close to the flange portion 18 between the flange portion 18 and the head portion 16b, and the hexagonal outer peripheral surface 20 of the adjusting screw 16 The spring 19 for preventing loosening comes into contact with the spring.

Therefore, the recess 15 of the adjusting screw receiving member 15
b and the flange portion 18 of the adjusting screw 16 are provided with a torsion spring 19 which is twisted right and left when viewed from above, and that the outer peripheral surface 20 has a torsion preventing spring 19.
Is brought into contact with each other, so that the adjusting screw 16 has an effect of preventing loosening. Since the other configuration is the same as the conventional example,
The detailed description is omitted.

By the way, in the conventional example and the embodiment of the present invention, the adjusting screw 16 can be adjusted from the widthwise end of the door on the pivoting side, but the upper end is open. The door may be configured so that the adjustment screw 16 can be adjusted from above the door. Further, the top pivot 6 provided on the door side may be provided on the upper frame side, and the top pivot provided on the upper frame side may be provided on the door side.

[0014]

As described above, according to the present invention, the adjusting screw for adjusting the position of the bearing member is provided between the surface of the adjusting screw receiving member facing the bearing member and the flange provided on the adjusting screw. The loosening prevention spring provided in the first embodiment prevents the looseness after the adjustment, so that the door can always be attached to the entrance in a correct state.

[Brief description of the drawings]

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

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

FIG. 3 is a plan view of a top pivot on the door side.

FIG. 4 is a cross-sectional view of a top pivot on the door side.

FIG. 5 is a perspective view of a door-side top pivot in a conventional example.

FIG. 6 is a fragmentary side view showing a state where the door is supported using a top pivot on the door side.

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

[Explanation of symbols]

 Reference Signs List 6 Door-side top pivot 7 Bearing member 8 Hole 11 Base 13 Guide member 15 Adjusting screw receiving member 15a Depressed portion 15b Depressed portion 15c Notched portion 16 Adjusting screw 16a Male screw end at tip 16b Head 17 Female screw hole 18 Flange portion 19 Spring for locking 19a Lower end 20 Outer peripheral surface

Claims (1)

(57) [Claims] A guide member, an adjusting screw receiving member mounted in the guide member, an adjusting screw rotatably supported on the adjusting screw receiving member around a horizontal axis, and a male screw at a tip end of the adjusting screw. And a bearing member having a female screw hole to be screwed with the bearing member and having a bearing member which moves toward and away from the adjusting screw receiving member along the guide member inside the guide member by turning the adjusting screw. Te, ne adjustment between the face and the flange portion provided on the adjusting screw of the adjusting screw receiving member facing said bearing member
A top pivot for supporting a door, wherein a spring for preventing an adjusting screw from being loosened is provided so as to abut on an outer peripheral surface of the same hexagon .