JP2014025214A - Door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a pivot shaft from retracting downward/protruding upward and a door body from being dropped, with a simple configuration.SOLUTION: A pivot shaft 4 protruding from an upper end face of a door body is supported in a vertically movable manner by a bracket 5 provided in the door body. The pivot shaft 4 is brought to an upward moving position where the pivot shaft 4 protrudes from the upper end face of the door body, by a spring 6 provided between an edge portion 40 of the pivot shaft 4 and a lower plate 51 of the bracket 5. On a door tail side end face of the door body, an opening is formed correspondingly to the edge portion 40 of the pivot shaft 4 at the upward moving position, and the pivot shaft 4 gets out of a bearing by moving the edge portion 40 downward. On a side plate 52 of the bracket 5, a mounting piece 522 is formed which includes a screw hole 523, and downward movement of the pivot shaft 4 is regulated by positioning a shank of a screw threaded into the screw hole 523 under the edge portion 40.

Description

The present invention relates to a door device including a hinged door rotatably attached to a door frame using a pivot hinge.

When hanging a door with a pivot shaft on the door frame, with the pivot shaft protruding from the door bottom side of the upper end of the door retracted downward, place the pivot shaft directly below the bearing on the door frame side. The pivot shaft that is positioned and retracted downward needs to protrude upward again and be locked to the bearing. Conventionally, there are many cases in which the pivot shaft is retreated downward and protruded upward by rotating a screw or the like, and the hanging work has been troublesome.

In the case of a door body with a pivot shaft that can be moved up and down, in a normal use state after the door body is suspended, the pivot shaft moves downward and disengages from the bearing due to some force acting. It is necessary to prevent the dropout. In the case of Patent Document 1, the lever is pivoted to retract the pivot shaft downward, project upward, and prevent the door from falling off, but there are many components and the mechanism is complicated. It has become.
JP 2008-248495 A

SUMMARY OF THE INVENTION An object of the present invention is to provide a door structure that is capable of preventing a pivot shaft from being retracted / projected upward and prevented from falling off, while having a simple configuration.

The technical means adopted by the present invention are:
In a door device comprising a pivot hinge comprising a pivot shaft projecting upward from a door bottom side portion of the upper end surface of the door body, and a bearing formed on the upper frame of the door frame,
The pivot shaft is composed of an upper plate, a lower plate, and a side plate that connects the upper plate and the lower plate, and is supported by a bracket provided at an upper part of the door bottom side of the door body so as to be movable up and down. ,
On the peripheral surface of the pivot shaft, a peripheral edge is formed extending below the upper end surface of the door body,
The pivot shaft is received by the bearing by holding an upward movement position protruding upward from the upper end surface of the door body by a spring provided between the peripheral edge portion and the lower plate,
An opening is formed in the upper part of the door butt side end surface of the door body so as to correspond to the peripheral part of the pivot shaft in the upward movement position, and the peripheral part is moved downward so as to compress the spring. Thus, the pivot shaft moves downward, and the pivot shaft takes a downward movement position to be detached from the bearing,
On the side plate, an attachment piece having a screw hole is formed so as to face the pivot shaft, and a shaft portion of a screw screwed into the screw hole is positioned immediately below the peripheral portion. The pivot shaft is restricted from being moved downward,
When the door body is in the closed position, the portion where the opening is formed on the door butt side end surface of the door body is hidden in the door frame side vertical frame of the door frame, and the door body is in the open position. , A door device that comes out of the vertical frame on the door bottom side and faces the building opening.
In one aspect, a cap is detachably attached to an upper portion of the door end side end face so as to close the opening.

  In one aspect, the door bottom side end surface of the door body includes a first surface that is perpendicular to the door body surface portion, and a second surface that is inclined with respect to the first surface, and the second surface is When the door body is in the open posture, it faces the building opening, and the opening is formed in the second surface.

  In one aspect, the cap includes a surface portion and a locking protrusion provided on the back surface side of the surface portion, and is detachably engaged with the opening. In this case, since a screw or the like is not used for mounting the cap, the appearance is good.

  In one aspect, the screw also serves as a mounting screw for the cap. In a more specific aspect, a screw hole is formed in the cap, and in a state where the cap is applied to the opening, the screw hole of the cap and the screw hole of the mounting piece coincide with each other, and by tightening the screw, The cap is fixed to the mounting piece, and at the same time, the shaft portion of the screw is advanced just below the peripheral portion.

In the present invention, the pivot shaft always protrudes from the upper end surface of the door body by the force of the spring, and when the door body is suspended, it is formed while pushing the protruding pivot shaft downward by hand, or on the door end side end surface. What is necessary is just to attach a door body to a door frame, inserting a tool etc. in opening and pushing the peripheral part of a pivot axis below, and the hanging operation | work of a door body is easy.

By positioning the shaft portion of the screw attached to the mounting piece immediately below the peripheral portion of the pivot shaft, the downward movement of the pivot shaft can be restricted, thereby preventing the door body from falling off. Moreover, when the opening formed on the door end side end face is closed with a cap, components such as the pivot shaft, the peripheral edge, and the spring are not exposed to the outside, which is good in design.

A door bottom side end surface of the door body includes a first surface perpendicular to the door body surface portion and a second surface inclined with respect to the first surface, and the second surface is in an open state of the door body. If the opening is formed on the second surface, the workability of inserting a tool or the like into the opening and removing the cap from the opening is good.

By using the screw for restricting the downward movement of the pivot shaft also as an attachment screw for a cap for closing the opening, it is possible to visually confirm that the screw has been forgotten to be tightened, so that forgetting to tighten can be prevented.

It is a front view of the door apparatus seen from the outdoor side. It is the elements on larger scale of the upper part of the door bottom side of the door apparatus of FIG. 1, and a lower part. It is a cross-sectional view of a door device in which a door body is in a closed posture. It is a partial cross-sectional view of a door device in which a door body is in an open posture. It is a fragmentary longitudinal cross-sectional view of the door apparatus which has a door body in a closed attitude | position. FIG. 6 shows a pivot shaft assembly. It is a figure which shows the door bottom side part of the door body provided with the cap which concerns on 1st Embodiment, the left figure has shown the state by which the opening was open | released, and the right figure has shown the state which plugged up the opening with the cap. It is a figure which shows the cap which concerns on 1st Embodiment. It is a figure which shows the door bottom side part of the door body provided with the cap which concerns on 2nd Embodiment, the left figure shows the state by which the opening was open | released, and the right figure has shown the state which plugged up the opening with the cap. It is a figure which shows the cap which concerns on 2nd Embodiment.

As shown in FIGS. 1 to 5, the door device is a hinged door, and includes a door frame 1 and a door body 2 attached to the door frame 1 so as to be rotatable. The door frame 1 of the door device includes a door end side vertical frame 10, a door bottom side vertical frame 11, an upper frame 12, and a lower frame 13, and a building opening is formed by the door frame 1. The door body 2 includes an outdoor side surface portion 20, an indoor side surface portion 21, a door end side end surface 22, a door bottom side end surface 23, an upper end surface 24, and a lower end surface 25. A door closer 200 is provided above the door 2, and the opened door 2 is automatically closed by the door closer 200.

An extending piece 220 is formed at the outdoor end of the door end side end surface 22 so as to protrude from the door end side end surface 22 in the height direction. In the closed state of the door body 2, the distal end side of the extension piece 220 is opposed to the outdoor side finding surface of the door-end side vertical frame 10. As shown in FIGS. 7 and 9, the door bottom side end surface 23 of the door body 2 includes a first surface 23 </ b> A perpendicular to the outdoor side surface portion 20 and the indoor side surface portion 21, and the indoor side with respect to the first surface 23 </ b> A. The second surface 23B is located on the side surface 21 side and extends in an inclined manner from the first surface 23A toward the door side with respect to the indoor side surface portion 21.

The door bottom side vertical frame 11 includes a prospective piece 110 extending in the indoor / outdoor direction in a plan view, an indoor side finding piece 111 projecting from an indoor side portion of the prospective piece 110 toward the building opening, and a chamber of the prospective piece 110. And an outdoor-side finding piece 112 projecting from the outside portion toward the building opening. When the door body 2 is in the closed position, the prospective piece 110 is opposed to the door-end side end surface 23 of the door body 2 and extends beyond the indoor side surface portion 21 of the door body 2. The indoor side finding piece 111 extends so as to be opposed to the door butt side portion of the indoor side surface portion 21 of the door body 2, and protrudes toward the outdoor side at the tip of the indoor side finding piece 111. And the airtight material 11A extended in the height direction of the door body 2 is mounted | worn with it. The outdoor-side finding piece 112 protrudes from the expectation piece 110 toward the door butt side end face 23 of the door body 2. As shown in FIG. 3, when the door body 2 is in the closed position, the airtight material 11 </ b> A that extends in the height direction attached to the door butt side vertical frame 11 is formed at the door butt side end of the indoor side surface portion 21 of the door body 2. They are in contact with each other and close a gap between the indoor side finding piece 111 and the door bottom side portion of the indoor side surface portion 21 of the door body 2. As shown in FIG. 4, when the door body 2 is in the open posture, the airtight material extending in the height direction attached to the door butt side vertical frame 11 contacts the first surface 23 </ b> A of the door butt side end face 23 of the door body 2. Or it is adjoining and the 2nd surface 23B of the door end side end surface 23 faces the building opening part.

The door body 2 is rotatable with respect to the door frame 1 by an upper pivot hinge 3A and a lower pivot hinge 3B. The upper pivot hinge 3 </ b> A includes a pivot shaft 4 on the door body 2 side and a bearing 120 on the upper frame 12 side, and the pivot shaft 4 is received by the bearing 120. The door bottom side part is attached to the upper frame 12 of the door frame 1 so that rotation is possible. The lower pivot hinge 3B includes a bearing 251 on the door body 2 side and a pivot shaft 131 on the lower frame 13 side, and the pivot shaft 131 is received by the bearing 251 so that the lower end surface 25 of the door body 2 is The door bottom side part is attached to the lower frame 13 of the door frame 1 so as to be rotatable.

As shown in FIG. 6, the pivot shaft 4 extends vertically and is supported by the bracket 5 so as to be movable up and down. The bracket 5 includes a horizontal upper plate 50, a horizontal lower plate 51, and a vertical side plate 52 that integrally connects the upper plate 50 and the lower plate 51. The upper plate 50 is formed with an insertion hole through which the upper end side of the pivot shaft 4 is inserted. The lower plate 51 is formed with an insertion hole through which the lower end side of the pivot shaft 4 is inserted. The upper and lower ends are supported in a vertical posture between the upper plate 50 and the lower plate 51 with the upper and lower ends inserted through the upper plate 50 and the lower plate 51, respectively. On the lower surface of the upper plate 50, a reinforcing plate 50A in which an insertion hole located in the insertion hole of the upper plate 50 is formed is fixed by a screw.

The pivot shaft 4 is a vertically extending cylindrical body, and is always located below the upper end surface 24 of the door body 2, in the illustrated embodiment, at a substantially intermediate position in the height direction, the peripheral surface of the pivot shaft 4. A peripheral edge 40 extending horizontally is formed. In the illustrated embodiment, the peripheral edge portion 40 has a disk shape extending radially from the entire peripheral surface of the pivot shaft 4, but the shape of the peripheral edge portion 40 is not limited to a disk shape. The polygonal shape may be sufficient. In one aspect, the peripheral portion 40 is formed from a push nut, but the peripheral portion and the columnar body of the pivot shaft 4 may be integrally formed.

A retaining ring 41 (in one embodiment, formed of an E-ring) 41 is fixed near the lower end of the pivot shaft 4, and the retaining ring 41 comes into contact with the lower surface of the lower plate 51 to move upward from that position. The upward movement of the shaft 4 is restricted. That is, the state in which the retaining ring 41 fixed to the pivot shaft 4 is in contact with the lower surface of the lower plate 51 is the upward movement position of the pivot shaft 4, and when the pivot shaft 4 is in the upward movement position, The upper end side protrudes from the upper plate 50.

On the lower half of the pivot shaft 4 supported between the upper plate 50 and the lower plate 51 of the bracket 5, a spring 6 is disposed between the peripheral edge 40 and the lower plate 51. The spring force of the spring 6 constantly urges the peripheral edge 40 upward, so that the pivot shaft 4 always maintains the upward movement position in a natural state where no external force acts. The plate 121 fixed to the lower surface of the upper frame 12 on the door butt side is provided with a bearing 120. When the pivot shaft 4 is in the upward movement position, the upper end portion of the pivot shaft 4 is located in the bearing 120 of the upper frame 12. Protrusively accepted.

When the peripheral portion 40 is moved downward so as to compress the spring 6 when the pivot shaft 4 is in the upward movement position, the pivot shaft 4 moves downward, and the upper end portion of the pivot shaft 4 is the bearing of the upper frame 12. Detach from 120 and move to the down position. The lower end portion of the pivot shaft 4 in the downward movement position is indicated by a dotted line in the upper diagram of FIG.

The side plate 52 has a vertically rectangular shape, and includes a first side edge 520 and a second side edge 521 that extend vertically, and the second side edge 521 is positioned at a substantially central portion in the height direction. And the attachment piece 522 is extended and formed. The extension piece 522 is a plate-like piece extending vertically, and extends in an inclined manner with respect to the side plate 52 in plan view. The attachment piece 522 is opposed to the pivot shaft 4 at a height position below the peripheral edge portion 40.

A screw hole 523 is formed in the attachment piece 522. When the screw 7 is screwed into the screw hole 523, the tip end side of the shaft portion of the screw 7 moves forward and is positioned below the peripheral edge portion 40. In this state, even if a force that moves the peripheral edge 40 downward so as to compress the spring 6 is applied, the peripheral edge 40 abuts on the tip side of the shaft portion of the screw 7 positioned below the peripheral edge 40. Thus, further downward movement is restricted, and the upper end side of the pivot shaft 4 is not detached from the bearing 120 of the upper frame 12. That is, the screw 7 is a screw for restricting the downward movement of the pivot shaft 4.

The pivot shaft 4, the bracket 5, and the spring 6 constitute a so-called pivot shaft assembly, and the pivot shaft assembly is attached to the door body 2 via the bracket 5. More specifically, the upper plate 50 of the bracket 5 is brought into contact with the door bottom side portion of the upper end surface 24 of the door body 2, and the upper plate 50 is attached to a fixing plate provided on the upper end surface 24 of the door body 2. On the other hand, it is fixed with screws. The side plate 52 of the bracket 5 is in contact with the upper part of the first surface 23A of the door end side end surface 23 of the door body 2 from the inside, and is fixed with screws. The mounting piece 522 of the side plate 52 of the bracket 5 extends along the second surface 23B inside the second surface 23B. As shown in FIG. 6, the upper plate 50 of the bracket 5 has an inclined edge corresponding to the second surface 23 </ b> B, and the planar shape of the upper plate 50 corresponds to the planar shape of the door body 2 on the door bottom side. It has become a shape.

As shown in FIGS. 7 and 9, the upper portion of the second surface 23 </ b> B includes a portion extending from a portion including the peripheral portion 40 of the pivot shaft 4 of the pivot shaft assembly to a lower portion, and a spring 6 sheathed on the portion. A vertically long opening 230 is formed corresponding to the mounting piece 522. A cap 8 (FIGS. 7 and 8) and a cap 9 (FIGS. 9 and 10) are detachably attached to the second surface 23 </ b> B so as to close the opening 230. The opening 230 is an opening for operating the pivot shaft 4, and has a height dimension H and a width dimension W. The height dimension H moves the pivot shaft 4 upward by pushing down the peripheral edge 40. It is a dimension that can be moved downward from the position to the downward movement position, and the width dimension W is a dimension into which a tool or the like can be inserted. 7 and 9, the pivot shaft 4, the spring 6, and the attachment piece 522 are biased to one side in the width direction of the opening 230, and the attachment piece 522 is the peripheral portion 40. Is not disturbed.

As shown in FIG. 3, in the door butt side end surface 23 of the door body 2, the portion where the opening 230 is formed (second surface 23 </ b> B) is the vertical position on the door butt side of the door frame when the door body 2 is in the closed posture. It is hidden in the frame 11 (facing the space surrounded by the expectation piece 110, the indoor side finding piece 111, and the airtight material 11A). It is considered that the door 2 is in a closed position for most of the time, and even if the opening 230 is exposed without the caps 8 and 9 being provided, in many cases, the opening 230 has a vertical frame on the door bottom side. 11 is concealed inside. As shown in FIG. 4, when the door body 2 is in an open posture (at least a posture rotated 90 degrees from the closed posture), a portion where the opening 230 is formed (second surface 23B) is within the door butt side vertical frame 11. To face the building opening.

As shown in FIGS. 7 and 8, in the first embodiment, the cap 8 includes a flat plate-like surface portion 80, and an engagement piece 81 that protrudes on the back surface of the surface portion 80 on the side close to the periphery. The cap 8 is detachably attached to the second surface 23B by engaging the engaging piece 81 with the back surface side of the peripheral edge of the opening 230.

As shown in FIGS. 9 and 10, in the second embodiment, the cap 9 includes a peripheral edge 90 and a central recess 91, and a screw hole 92 is formed on the bottom surface of the recess 91. With the peripheral edge 90 abutting on the peripheral edge of the opening 230 of the second surface 23B, the bottom surface of the recess 91 is in contact with or close to the mounting piece 522, and the screw 7 is screwed into the screw hole 92 and the screw hole 523. By combining, the cap 9 is detachably attached to the second surface 23B. The screw 7 serves both as a downward movement restricting screw for the pivot shaft 4 and a screw for attaching the cap 9.

The lower pivot hinge 3B will be described with reference to the lower diagram of FIG. A bearing 251 is formed on the horizontal piece of the L-shaped fixing plate 250 fixed to the door bottom side of the lower end surface 25 of the door body 2. On the other hand, a pivot shaft 131 is projected upward from the plate 130 fixed to the upper surface of the lower frame 13 of the door frame 1, and the pivot shaft 131 is received by the bearing 251. The vertical piece of the fixed plate 250 is fixed to the lower part of the first surface 23A of the door bottom side end face 23 of the door body 2 from the inside by screws, and the horizontal piece of the fixed plate 250 is The plate 252 fixed to the lower end surface 25 is fixed with screws.

In the door device configured as described above, when the door body 2 is attached to the door frame 1, the door body 2 having the opening 230 opened with the caps 8 to 9 removed is used as the upper end surface 24 of the door body 2. In a state where the pivot shaft 4 protruding upward from the hand is pushed downward by hand (the peripheral portion 40 may be pushed downward by a tool inserted through the opening 230), the bearing 251 on the door bottom side of the lower end surface 25 is The pivot shaft 131 of the lower frame 13 is suspended so as to be inserted, the pivot shaft 4 is positioned immediately below the bearing 120 of the upper frame 12, and the push-down of the pivot shaft 4 is released. Is protruded upward and locked to the bearing 120.

With the door body 2 attached to the door frame 1, the screw 7 is tightened to advance the shaft portion of the screw 7, and the shaft portion of the screw 7 is positioned directly below the peripheral portion 40, thereby lowering the peripheral portion 40. Movement to is regulated. Then, the cap 8 is engaged with the periphery of the opening 230 to close the opening 230. By closing the opening 230 with the cap 8, the elements of the pivot shaft assembly are not exposed to the outside, and the design is excellent.

When the cap 9 is used, the screw hole 92 of the concave portion 91 of the cap 9 and the screw hole 523 of the mounting piece 522 are aligned with the cap 9 applied to the opening 230, and the cap 9 is attached to the mounting piece by the screw 7. Simultaneously with fixing to 522, the shaft portion of the screw 7 moves forward, and the shaft portion of the screw 7 is positioned directly below the peripheral edge portion 40, so that the downward movement of the peripheral edge portion 40 is restricted. In this case, since the screw for attaching the cap 9 also serves as a screw for restricting the downward movement of the pivot shaft, forgetting to tighten the screw 7 can be prevented.

When removing the door body 2, the door body 2 is set in an open posture (see FIG. 4) so that the second surface 23 B of the door end side end surface 23 of the door body 2 faces the building opening, the cap 8 is removed, Opening the opening 230, loosening the screw 7 so that the shaft part retracts, withdrawing the shaft part from the position below the peripheral part 40, inserting a tool or the like into the opening 230 and pushing down the peripheral part 40, The pivot shaft 4 is detached from the bearing 120. Then, the door body 2 can be detached from the door frame 1 by releasing the pivot hinge structure on the lower side of the door body 2.

When the cap 9 is used, the screw 7 is loosened so that the shaft portion is retracted and the cap 9 is detached from the attachment piece 522, so that the shaft portion is retracted from the position below the peripheral edge portion 40 at the same time. The pivot shaft 4 is detached from the bearing 120 by inserting a tool or the like into the opening 230 and pushing down the peripheral edge 40. Then, the door body 2 can be detached from the door frame 1 by releasing the pivot hinge structure on the lower side of the door body 2.

DESCRIPTION OF SYMBOLS 1 Door frame 11 Door bottom side vertical frame 12 Upper frame 120 Bearing 2 Door body 23 Door bottom side end surface 24 Upper end surface 4 Pivot shaft 40 Peripheral part 5 Bracket 50 Upper plate 51 Lower plate 52 Side plate 522 Mounting piece 523 Screw hole 7 Screw 8 Cap 9 cap

Claims (5)

In a door device comprising a pivot hinge comprising a pivot shaft projecting upward from a door bottom side portion of the upper end surface of the door body, and a bearing formed on the upper frame of the door frame,
The pivot shaft is composed of an upper plate, a lower plate, and a side plate that connects the upper plate and the lower plate, and is supported by a bracket provided at an upper part of the door bottom side of the door body so as to be movable up and down. ,
On the peripheral surface of the pivot shaft, a peripheral edge is formed extending below the upper end surface of the door body,
The pivot shaft is received by the bearing by holding an upward movement position protruding upward from the upper end surface of the door body by a spring provided between the peripheral edge portion and the lower plate,
An opening is formed in the upper part of the door butt side end surface of the door body so as to correspond to the peripheral part of the pivot shaft in the upward movement position, and the peripheral part is moved downward so as to compress the spring. Thus, the pivot shaft moves downward, and the pivot shaft takes a downward movement position to be detached from the bearing,
On the side plate, an attachment piece having a screw hole is formed so as to face the pivot shaft, and a shaft portion of a screw screwed into the screw hole is positioned immediately below the peripheral portion. The pivot shaft is restricted from being moved downward,
When the door body is in the closed position, the portion where the opening is formed in the door butt side end surface of the door body is hidden in the door frame side vertical frame of the door frame, and the door body is in the open position. , Coming out of the Tojiri vertical frame and facing the building opening,
Door device.   The door device according to claim 1, wherein a cap is detachably attached to an upper portion of the door end side end surface so as to close the opening.   The door device according to claim 2, wherein the cap includes a surface portion and a locking protrusion provided on a back surface side of the surface portion, and is detachably engaged with the opening.   The door device according to claim 2, wherein the screw also serves as a screw for attaching the cap. The door bottom side end surface of the door body includes a first surface that is perpendicular to the door body surface portion and a second surface that is inclined with respect to the first surface, and the door body is open to the second surface. The door device according to any one of claims 1 to 4, wherein the door device faces a building opening when in a posture, and the opening is formed in the second surface.

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