JP3232247B2 - Orido pivot structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a pivot for a folding door, and more particularly to a structure in which a pivot shaft having a height adjusting function is attached to a lower side of the folding door.

[0002]

2. Description of the Related Art Conventionally, in a pivot type folding door in which a pivot shaft attached to both upper and lower sides of a folding door is fixed to a fixture attached to a rail, a lower pivot shaft 2 'has a height adjusting function. What is known is. An example is shown in FIG. A fitting shaft 6 ′ and a flange 8 ′ are integrally formed on the lower end of the lower pivot shaft 2 ′, and a female screw 13 formed on the upper end thereof is a female screw of the fitting member 16 of the folding door 1. 13, the center part of the pivot shaft 2 ′ is rotated by a spanner or the like, so that the male screw part 12 moves up and down along the female screw part 13 of the fitting member 16 and pivots from the lower end of the folding door 1. The protrusion height of the shaft 2 'is adjustable. As the fixing tool 4 for fixing the pivot shaft 2 ′, a slope portion 14 that is climbed and inclined on which the fitting shaft portion 6 ′ of the pivot shaft 2 ′ rides up, a pivot bearing portion 5 provided at the back of the slope portion 14, Rail 3
A climbing type having a fixing screw 15 fixed to the folding door 1 is used.
By adjusting the protruding height of the pivot shaft 2 ′ from the lower end of the pivot shaft 2 ′, the fitting shaft portion 6 ′ at the lower end of the pivot shaft 2 ′ can ride on the slope portion 14 and be securely fitted to the pivot bearing portion 5. As a result, the folding door 1 can be fixed to the lower rail 3.

[0003]

However, in the conventional pivot shaft 2 'having a height adjusting function, the folding door 1
When opening and closing the pivot shaft 2 ′, the male screw portion 12 of the pivot shaft 2 ′ and the female screw portion 13 of the folding door 1 are screwed together, so that the pivot shaft 2 ′ rotates together with the folding door 1. Friction occurs with the fixture 4. In particular, since the load of the folding door 1 is applied to the lower pivot shaft 2 ', the frictional force between the flange portion 8' and the fixture 4 becomes very large, and the pivot shaft 2 'is worn and the life is shortened. There is a problem,
Further, there is also a problem that squeak noise is generated due to friction and the usability is deteriorated.

[0004] The present invention has been made in view of the above points, and prevents the occurrence of friction between the pivot shaft and the fixture when the folding door is opened and closed, even though the pivot shaft has a height adjusting function. Therefore, an object of the present invention is to provide a structure of a pivot for a folding door that can extend the life of a pivot shaft and improve the usability.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pivoting pivot for a folding door, comprising a pivot shaft 2 attached to the upper and lower sides of a folding door 1 fixed to a fixture 4 attached to a rail 3. In the structure of (1), at the lower end of the pivot shaft 2 attached to the lower side of the folding door 1, a fitting shaft portion 6 fitted into the pivot bearing portion 5 of the fixture 4 attached to the lower rail 3 and the pivot of the fixture 4 A support member 9 comprising a flange portion 8 mounted on the support surface 7 and supporting the load of the folding door 1
Is rotatably attached to the pivot shaft 2, and is provided at the center of the pivot shaft 2 so as to be movable in the axial direction S of the pivot shaft 2 and rotatable integrally with the pivot shaft 2.
Is provided, and the upper end of the pivot shaft 2 is screwed into the folding door 1 to adjust the protrusion height of the pivot shaft 2 from the lower end of the folding door 1 when the pivot shaft 2 is rotated. When the folding door 1 is opened and closed, the pivot shaft 2 rotates integrally with the folding door 1 via the locking member 10, and the flange 8 of the support member 9 supports the pivot support of the fixture 4. It is characterized in that the pivot shaft 2 is held in a state of being pressed against the surface 7. With this configuration, the pivot shaft 2 has a height adjusting function, but the pivot shaft 2 is opened and closed when the folding door 1 is opened and closed. 2 can prevent the occurrence of friction between the support member 9 and the fixture 4, prevent the pivot shaft 2 from being worn, and prevent the generation of squeak noise due to the friction.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below. As shown in FIGS. 4 to 6, the pivot type folding door 1 of the present embodiment is disposed between the left and right pillars 20, the upper frame 21, and the lower frame 22 that form an opening frame of a building. The folding door 1 is composed of a plurality of two folding doors, and each folding door has two doors 1.
A and 1B are hingedly connected via a hinge 23. Pivot shafts 2 are respectively attached to upper and lower sides of one side of one door 1A, and the other side of the other door 1B. Runners 24 are respectively attached to the upper and lower sides of the section. The pivot shafts 2 are respectively fixed to riding fixtures 4 attached to the ends of the upper and lower rails 3, while the runners 24 are inserted so as to run along the upper and lower rails 3. It is.

[0007] As shown in FIG. 2, the climbing-type fixture 4 includes a slope portion 14 on which the fitting shaft portion 6 at the lower end of the pivot shaft 2 rides, and a pivot provided at the back of the slope portion 14. It comprises a bearing 5 and a fixing screw 15 fixed to the rail 3. The pivot shaft 2 of the present embodiment attached to the lower end of the folding door 1 has a height adjustment function as described later. On the other hand, the pivot shaft 2 attached to the upper side of the folding door 1 is urged upward by a spring, and can be fitted to a pivot bearing portion of a fixture fixed to the upper rail.

A pivot shaft 2 attached to the lower side of the folding door 1
As shown in FIGS. 1 to 3, a supporting member 9 is rotatably attached to a lower end side, and a prism-shaped portion 11 is provided at a central portion side.
And a female screw portion 13 is formed on the upper end side. Here, the support member 9 rotatably attached to the lower end of the pivot shaft 2 includes a fitting shaft portion 6 fitted into the pivot bearing portion 5 of the fixture 4 attached to the lower rail 3, and a fixing member 4 of the fixture 4. And a flange portion 8 mounted on the pivot support surface 7 to support the load of the folding door 1. The fitting shaft portion 6 is provided even when the pivot shaft 2 rotates.
The flange portion 8 has a structure that does not rotate. FIG.
26 is a washer. In order to make the rotation of the pivot shaft 2 smooth, a bearing such as a rolling bearing may be interposed on the contact surface between the lower end of the pivot shaft 2 and the support member 9.

The rectangular column 11 of the pivot shaft 2 is formed in an octagonal column shape so that it can be rotated by a spanner 30, and a cylindrical locking member 10 is fitted to the rectangular column 11. . As shown in FIG. 1, the cylindrical locking member 10 is composed of a large-diameter tube portion 10a and a small-diameter tube portion 10b that can move in the axial direction S of the pivot shaft 2, and the large-diameter tube portion 10a
A holding piece 10c for holding the outer peripheral surface of the prismatic portion 11 of the pivot shaft 2 is provided on the side, and the locking member 10 is prevented from rotating with respect to the pivot shaft 2 by this holding piece 10c. It is possible to rotate integrally. A notch 32 is formed at the upper end of the small-diameter cylindrical portion 10b at a position corresponding to a rib 31 of the fitting member 16 described later.
An operation hole 33 into which a flat tool such as a flathead screwdriver or the like can be inserted is formed on the outer periphery of the large-diameter cylindrical portion 10a, and the locking member 10 is vertically moved by inserting a tool into this operation hole 33. The small-diameter cylindrical portion 10b
The notch 32 can be removably fitted to a rib 31 of the fitting member 16 described later.

The female screw portion 13 on the upper end side of the pivot shaft 2 is
As shown in FIG. 2, the fitting member 1 embedded in the folding door 1
6 is screwed into the female screw portion 13. Fitting member 16
Is fitted in a lateral hole 35 provided in the folding door 1, and a flange 16 a is formed at the entrance end thereof so as to be positioned at the opening edge of the lateral hole 35.
The position of the fitting member 16 in the fitting direction is determined by 6a. The fitting member 16 is formed with a female screw portion 13 extending in the vertical direction.
A male screw portion 12 of the pivot shaft 2 is screwed into 3.
Further, a rib 31 (FIG. 1) is provided on the outer periphery of the lower end of the female screw portion 13 of the fitting member 16, and this rib 31 can be fitted into a notch 32 provided on the small-diameter cylindrical portion 10 b of the locking member 10. It has been.

When the height of the pivot shaft 2 is adjusted, a tool is inserted into the operation hole 33 of the locking member 10 and the locking member 10 is pushed down, so that the locking member 10 is locked from the rib 31 of the fitting member 16. The locking member 10 is separated from the notch 32 of the member 10 so that the locking member 10 can be prevented from rotating with respect to the fitting member 16, that is, the locking member 10 can be rotated integrally with the pivot shaft 2. In this state, when the wrench 30 is inserted from the lateral direction of the prismatic portion 11 of the pivot shaft 2 and the pivot shaft 2 is rotated, the male screw portion 12 of the pivot shaft 2 moves along the female screw portion 13 of the fitting member 16. By moving up and down, the protrusion height of the pivot shaft 2 from the lower end of the folding door 1 can be adjusted. Then, after adjusting the height to an arbitrary height, the locking member 10 is pushed up to the original upper position, so that the rib 31 is fitted into the notch 32 and the locking member 10 is held in a detent state with respect to the fitting member 16. Is done. Thereby, rotation of the pivot shaft 2 and the locking member 10 is prevented, and the pivot shaft 2
Can be fixed at the height position. By adjusting the height of the pivot shaft 2 protruding from the lower end of the folding door 1 in this way, even if the riding fixture 4 having a different height is adjusted, the protrusion height of the pivot shaft 2 is sufficiently adjusted. It is possible to respond.

When the folding door 1 is opened and closed about the pivot shaft 2 in a state where the pivot shaft 2 is fixed to the pivot bearing portion 5 of the fixture 4, the locking member 10 rotates with respect to the fitting member 16 of the folding door 1. Since the locking member 10 is stopped, the locking member 10 rotates integrally with the folding door 1, whereby the locking member 1 is rotated.
The pivot shaft 2 into which the “0” is fitted also rotates integrally with the folding door 1. At this time, the fitting shaft portion 6 fitted into the pivot bearing portion 5 of the fixture 4 and the flange portion 8 placed on the pivot support surface 7 of the fixture 4 and supporting the load of the folding door 1 are attached to the pivot shaft 2. The flange 8 is held in a state of being pressed against the flange support surface 7 of the fixture 4 even when the pivot shaft 2 rotates, and the flange 8 is pivotally supported. Since it does not rotate with the shaft 2, there is no friction with the fixture 4. Therefore, although the pivot shaft 2 has a height adjusting function, the friction between the support member 9 of the pivot shaft 2 and the fixture 4 can be prevented when the folding door 1 is opened and closed, so that the pivot shaft 2 is worn. And the life of the pivot shaft 2 can be extended. Further, since no squeak noise is generated due to friction, the folding door 1 can be rotated quietly and smoothly, and there is an advantage that usability is improved.

In the above-described embodiment, the pivot shaft 2 fixed to the riding type fixture 4 has been described. However, a fixing device other than the riding type, for example, a fixing device having only the pivot bearing portion 5 to which the pivot shaft 2 is fitted. Of course, it can be widely applied to tools.

[0014]

As described above, the present invention relates to a folding door pivot structure in which pivot shafts attached to upper and lower sides of a folding door are fixed to fixtures attached to rails.
At the lower end of the pivot shaft attached to the lower side of the folding door, a fitting shaft portion fitted to the pivot bearing portion of the fixture attached to the lower rail and the pivot supporting surface of the fixture are placed on the pivot support surface to reduce the load of the folding door. A supporting member comprising a supporting flange portion is rotatably attached to the pivot shaft, and a locking member movable in the axial direction of the pivot shaft and rotatable integrally with the pivot shaft is provided at the center of the pivot shaft. A mating prismatic portion is provided, and a male screw portion is provided on the upper end side of the pivot shaft, which is screwed to the folding door side so that the height of the pivot shaft projecting from the lower end of the folding door can be adjusted during the rotation of the pivot shaft. When the folding door is opened and closed, the pivot shaft rotates integrally with the folding door via the locking member, and the flange portion of the support member is held in a state pressed against the pivot support surface of the fixture. By breaking, flange portion even support the load of Orito even though pressed against the fixture, since the flange portion does not rotate, no friction occurs between the fixture. Therefore, even though the pivot shaft has a height adjusting function, friction between the support member of the pivot shaft and the fixture can be prevented when the folding door is opened and closed, so that wear of the pivot shaft is prevented, and the pivot shaft is prevented from being worn. The life of the shaft can be extended. Further, since no squeak noise is generated due to friction, the folding door can be rotated quietly and smoothly, thereby improving usability.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of an embodiment of the present invention.

FIG. 2 is a sectional view illustrating a state where a pivot shaft is attached to a folding door.

FIG. 3A is a side view of the same pivot shaft with a part cut away, and FIG. 3B is a cross-sectional view taken along line AA of FIG.

4A is a perspective view of a folding door, and FIG. 4B is a front view.

FIG. 5 is a side sectional view illustrating a pivot shaft of the folding door.

FIG. 6 is a plan sectional view of FIG. 5;

FIG. 7 is a sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Folding door 2 Pivot shaft 3 Rail 4 Fixture 5 Pivot bearing part 6 Fitting shaft part 7 Pivot support surface 8 Flange part 9 Support member 10 Locking member 11 Square column part 12 Male screw part S Axial direction

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05D 15/26

Claims (1)

(57) [Claims] 1. A folding door pivot structure in which pivot shafts attached to upper and lower sides of a folding door are fixed to fixtures attached to rails, wherein a lower end of the pivot shaft attached to a lower side of the folding door has a lower side. A support member comprising a fitting shaft portion fitted into a pivot bearing portion of a fixing device mounted on the rail and a flange portion mounted on the pivot support surface of the fixing device and supporting the load of the folding door is rotatable with respect to the pivot shaft. Is provided at the center portion of the pivot shaft, and a prismatic portion is provided at the upper end side of the pivot shaft, which is fitted with a locking member movable in the axial direction of the pivot shaft and rotatable integrally with the pivot shaft. A male screw portion is provided that is screwed to the folding door side to adjust the height of the pivot shaft projecting from the lower end of the folding door during the rotation operation of the pivot shaft. Occasionally A pivot structure for a folding door, wherein the pivot member pivots integrally with the door and the flange portion of the support member is held while being pressed against the pivot support surface of the fixture.