JP2002242546A - Warp preventive appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a warp preventive appliance capable of solving the problem that the position of a door board toward a frame structure can not be adjusted in the horizontal direction by pivot hinges in the conventional warp preventive appliance. SOLUTION: When the position of the door board 20 is adjusted by the pivot hinges 11 and 22, a control pin 31c can be moved forward, backward and sideways within a range surrounded by the circumferential wall surface of a through hole 32a1. Even if the door board 20 is warped, the backward movement of the control pin 31c more than a predetermined quantity is controlled by a linear shape section A of the through hole 32a1. For that purpose, the warp more than an allowable range of the door board 20 is prevented, and the door board 20 can be prevented from being unopened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing warpage, and more particularly to a device for preventing warpage of a door plate which is mounted between a door plate disposed in a door structure and a frame structure.

[0002]

2. Description of the Related Art Conventionally, hinges (not shown) are provided between upper and lower corners of a door plate 1 and a frame structure 2, respectively. Between the upper and lower hinges, as shown in FIGS.
A warp preventing device 5 constituted by a door-side fitting 3 and a frame-side fitting 4 is attached. The door-side metal fitting 3 includes a rectangular plate-shaped mounting portion 3a and a regulating pin support portion 3b that supports a cylindrical regulating pin 3b1 at a front end of the mounting portion 3a. The screw is stopped and the regulating pin 3b1 is projected downward while the axis is oriented in the vertical direction.

On the other hand, the frame-side fitting 4 has a rectangular plate-shaped mounting portion 4.
a, and a cylindrical regulating pin receiving portion 4b provided at the front end of the attaching portion 4a. The attaching portion 4a is screwed to the side surface of the door plate 1, and the lower end side of the regulating pin 3b1 is regulated to the regulating pin receiving portion 4b.
The control pin 3b1 is rotatably supported by the control pin receiving portion 4b. Then, since the axis of the regulation pin 3b1 is maintained at a predetermined position by the regulation pin receiving portion 4b, when the door plate 1 warps,
The displacement of the plate surface of the door plate 1 in the front-rear direction is prevented.

[0004]

In the above-described conventional warp preventing device, the positional relationship between the regulating pin 3b1 and the regulating pin receiving portion 4b is determined at the time of attachment, so that the pivot hinge having the position adjusting mechanism is provided. For example, it cannot be used when the position of the door plate 1 with respect to the frame structure 2 is adjusted in the horizontal direction. The present invention has been made in view of the above problems, and an object of the present invention is to provide a warp preventing device that can be used even when a pivot hinge having a position adjusting mechanism in a door structure is used.

[0005]

In order to achieve the above object, according to the present invention, a pivot hinge capable of adjusting a position of a door plate with respect to a frame structure in a horizontal direction is provided at upper and lower corners of the door plate, respectively. In the disposed door structure, a warp prevention device for the door plate attached between the pivot hinges, wherein the columnar body is attached to either the frame structure or the door plate while orienting the axis in a substantially vertical direction. A first member provided with a through hole larger than the outer diameter of the columnar body, and any of the frame structure or the door plate on the side where the first member is not attached while inserting the columnar body into the through hole. A second member having a cylindrical body attached to the crab. That is, in a door structure in which a pivot hinge capable of adjusting a position of a door plate with respect to a frame structure in a horizontal direction is disposed at each of upper and lower corners of the door plate, a warp preventing device including a first member and a second member is provided. Mounted between pivot hinges.

Here, when the first member is attached to the door plate while orienting the axis of the column in a substantially vertical direction, a cylindrical member having a through-hole larger than the outer diameter of the column is provided. The two members are attached to the frame structure while inserting the same cylindrical body into the through hole. Since the through hole is formed to be larger than the outer diameter of the cylindrical body, when the position of the door plate is adjusted in the horizontal direction by the pivot hinge, the cylindrical body is front, rear, left and right inside the through hole. Can be moved to Therefore, at the time of construction, the door plate is adjusted to a desired position.

When the door plate warps and the plate surface of the door plate is displaced, the cylindrical body also moves in the same direction, but the amount of movement of the cylindrical body is restricted by the wall surface of the through hole. Therefore, since the door plate does not displace in the front-rear direction by more than the predetermined amount, it is possible to prevent the door plate from interfering with the frame structure and becoming unable to rotate. On the other hand, when the first member is attached to the frame structure while orienting the axis of the column in a substantially vertical direction, the second member is attached to the door plate while inserting the column into the through hole.

Since the through hole is formed to be larger than the outer diameter of the cylindrical body, when the position of the door plate is adjusted in the horizontal direction by the pivot hinge, the cylindrical body is formed by the through hole. The cylinder can be moved back and forth and right and left within a range until it comes into contact with the wall surface of the. Therefore, at the time of construction, the door plate is adjusted to a desired position. Further, when the door plate warps and the plate surface of the door plate is displaced, the cylindrical body also moves in the same direction, but the cylindrical body moves by the wall surface of the through hole abutting on the cylindrical body. Is regulated. Therefore, since the door plate does not displace in the front-rear direction by more than the predetermined amount, it is possible to prevent the door plate from interfering with the frame structure and becoming unable to rotate.

According to a second aspect of the present invention, as a specific example of the shape of the through-hole, the through-hole of the cylindrical body may be a plate of the door plate. It is configured to include a linear portion that can be installed substantially parallel to the surface. That is, even when the door plate is warped, if the first member is attached to the door plate, the column moves in a direction substantially orthogonal to the plate surface of the door plate. The movement of the body is restricted by a linear portion installed substantially parallel to the surface of the door plate. On the other hand, if the second member is attached to the door plate, the cylinder moves in a direction substantially orthogonal to the plate surface of the door plate. The movement is regulated by the above-mentioned columnar body in the linear portion installed substantially in parallel with.

With this configuration, when the first member is attached to the door plate, adjustment by the pivot hinge is performed, and even if the first member moves substantially parallel to the plate surface of the door plate, When the same cylindrical body moves due to warpage, the movement of the same cylindrical body is regulated by the same straight-shaped portion, so that the movement restricting position of the same cylindrical body does not vary. That is, if the distance from the door plate to the cylindrical body can be determined accurately, the door plate is always restricted from moving more than the distance from the cylindrical body to the linear portion. Further, even when the second member is attached to the door plate, similarly, even when the cylinder moves substantially parallel to the plate surface of the door plate at the time of adjustment by the pivot hinge, Since the movement of the linear portion is restricted by the column, the door plate is always restricted from moving beyond the distance from the column to the linear portion.

As another specific example of the shape of the through hole,
According to a third aspect of the present invention, in the warpage prevention device according to the second aspect, the through hole of the cylindrical body includes a curved portion extending in a semicircular shape from each end of the linear portion. There is a configuration. That is, in the through-hole of the cylindrical body, since the curved portion extends from each end of the linear portion in a semicircular shape, compared with the length of the linear portion, the plate surface of the door plate Therefore, it is possible to secure a large maximum inner diameter in a direction that is substantially parallel. Therefore, when the adjustment by the pivot hinge is performed, when the first member is attached to the door plate, the columnar body is free to move in a wide range in a direction substantially parallel to the plate surface of the door plate. Becomes possible. Similarly, when the second member is attached to the door plate, the cylindrical body can freely move in a wide range in a direction substantially parallel to the plate surface of the door plate.

When the first member is attached to the door plate, the distance from the columnar body to the plate surface of the door plate is determined, and when the second member is attached to the door plate. By determining the distance from the wall surface of the through hole to the plate surface of the door plate, it is possible to set the allowable movement amount from the cylindrical body to the wall surface of the through hole. Therefore, an additional configuration for positioning the first member or the second member with respect to the door plate is effective.
As an example, the invention according to claim 4 is the warpage prevention device according to any one of claims 1 to 3, wherein the first member or the second member includes the cylindrical member or the cylindrical member. A mounting portion for the door plate protrudes from the outer wall surface, and the mounting portion includes a positioning portion that presses against the plate surface of the door plate to perform positioning in the front-rear direction.

That is, when the first member is mounted on the door plate, the mounting portion protruding from the cylindrical body is provided with a positioning portion, and the positioning portion is provided on the door from the side of the cylindrical body. It is pressed against the plate surface of the plate, and positioning in the front-back direction is performed. Therefore, the distance from the cylindrical body to the plate surface of the door plate is determined only by attaching the first member while pressing the positioning portion against the plate surface of the door plate. On the other hand, when the second member is attached to the door plate, a mounting portion protruding from the outer wall surface of the cylindrical body is provided with a positioning portion, and the positioning portion is provided from a side opposite to the cylindrical body. It is pressed against the surface of the door plate, and positioning in the front-rear direction is performed. Therefore, the distance from the cylindrical body to the plate surface of the door plate is determined only by attaching the first member while pressing the positioning portion against the plate surface of the door plate. Further, when the first member is attached to the same frame structure, by determining the distance from the cylindrical body to the same frame structure, and when the second member is attached to the same frame structure, the wall surface of the through hole By determining the distance from to the same frame structure, it is possible to accurately set the allowable movement amount from the same cylinder to the wall surface of the through hole.

Thus, an additional configuration for positioning the first member or the second member with respect to the frame structure is effective. As an example thereof, the invention according to claim 5 is the warpage prevention device according to any one of claims 1 to 4, wherein the second member or the first member includes an outer peripheral surface of the cylindrical body or the outer peripheral surface of the cylindrical member. An attachment portion for the frame structure protrudes from the columnar body, and the attachment portion bends a distal end portion into a substantially L-shape to form a pressing surface that can be pressed against a front-rear positioning portion provided in the frame structure. There is a configuration. That is, when the second member is attached to the frame structure,
At the mounting portion protruding from the outer wall surface of the cylindrical body, a distal end portion is bent substantially in an L shape to form a pressing surface, and the pressing surface is formed into a frame structure from the side of the cylindrical body. It is pressed against the provided front-rear positioning portion, and positioning in the front-rear direction is performed. Therefore, the distance from the wall surface of the through hole to the same frame structure is determined only by attaching the second member while pressing the pressing surface against the front-rear positioning portion.
On the other hand, when the first member is attached to the frame structure, the attachment portion protruding from the cylindrical body has a tip portion bent in a substantially L-shape to form a pressing surface. Is pressed from the side of the cylindrical body to the front-rear positioning portion provided in the frame structure, and positioning in the front-rear direction is performed. Therefore, the distance from the cylindrical body to the frame structure is determined only by attaching the first member while pressing the pressing surface against the front-rear positioning portion.

Further, it is useful to provide an additional configuration for improving the appearance of the warpage preventing device. As an example, the invention according to claim 6 is a device for preventing warpage according to any one of claims 1 to 5, wherein an opposing portion is blindfolded at an opposing position between the cylindrical body and the cylindrical body. There is a configuration provided with a cover. That is, a cover is provided at a position facing the cylindrical body and the cylindrical body,
The cover covers the opposite portion between the cylindrical body and the cylindrical body. For example, when a step occurs in the opposing portion due to design reasons, or when a step occurs in the opposing portion when the door plate is opened and closed, the cover covers these steps, so that the external appearance may be reduced. This is a useful configuration in that it can be improved. In addition, the cover mentioned here may be a member that can be attached to any of the first member and the second member, or may be a member that is integrally formed with any of the members. .

The second member according to the first to sixth aspects includes a cylindrical body into which the cylindrical body can be inserted. However, such a configuration is merely an example, and the second member is attached to the frame structure. In this case, a configuration other than the cylindrical body may be adopted from the viewpoint that it is sufficient that the movement of the cylindrical body in the direction orthogonal to the plate surface of the door plate can be restricted. As one example, the invention according to claim 7 is a door structure in which pivot hinges capable of adjusting a position of a door plate with respect to a frame structure in a horizontal direction are arranged at upper and lower corners of the door plate, respectively. A device for preventing warpage of the door plate attached to the first member having a columnar body attached to the door plate while orienting the axis in a substantially vertical direction, between the columnar body and the door plate While having a predetermined interval with the same cylindrical body, having a cylindrical body receiving portion arranged to be wide in a direction substantially parallel to the plate surface of the door plate,
A second member attached to the frame structure. That is, in a door structure in which a pivot hinge capable of adjusting a position of a door plate with respect to a frame structure in a horizontal direction is disposed at each of upper and lower corners of the door plate, a warp preventing device including a first member and a second member is provided. Mounted between pivot hinges.

Here, when the first member is attached to the door plate while orienting the axis of the column in a substantially vertical direction, the second member has a column receiving portion formed between the column and the door plate. It is attached to the frame structure so as to be oriented in a direction substantially parallel to the surface of the door plate. When the cylindrical body receiving portion is attached to the frame structure, a predetermined interval is provided between the cylindrical body and the cylindrical body. Therefore, when adjusting the position of the door plate in the horizontal direction by the pivot hinge, the cylindrical body is It is possible to move forward, backward, left and right. Therefore, at the time of construction, the door plate is adjusted to a desired position. Further, when the door plate warps, when the plate surface of the door plate is displaced, the cylindrical body also moves in the same direction, but the amount of movement of the cylindrical body is restricted by the cylindrical body receiving portion. Therefore, the door plate is not displaced in the front-rear direction by more than a predetermined amount.
It is possible to prevent the rotation from becoming impossible due to interference with the frame structure.

[0018] As an example of the specific configuration of the cylindrical body receiving portion, the invention according to claim 8 is the warpage prevention device according to claim 7, wherein the second member is a plate of the door plate. A linear portion is provided in a direction substantially parallel to the surface, and a protrusion is formed at each end of the linear portion toward the side away from the door plate. That is, the linear portion oriented in a direction substantially parallel to the plate surface of the door plate restricts the movement of the columnar body when the door plate warps. At this time, as in the case of the second aspect, when the adjustment by the pivot hinge is performed, even if the door plate moves substantially parallel to the plate surface, the door plate warps and the door plate moves. When the cylinder moves, the movement of the cylinder is regulated by the linear portion, so that the movement regulation position of the cylinder does not vary. In addition, the projections formed at the ends of the linear portion on the side away from the door plate are used to guide the cylindrical body to the linear portion when the door plate is warped. The movement of the cylindrical body is reliably restricted by the straight-shaped portion.

[0019]

As described above, the present invention can provide a warp preventing device which can be used even when a pivot hinge having a door plate position adjusting mechanism is used in a door structure. Further, according to the invention according to claim 2, it is possible to reliably prevent the door plate from becoming unrotatable. Further, according to the third aspect of the invention, the range of adjustment of the door plate by the pivot hinge can be widened. Further, according to the invention of claim 4, the member can be easily attached to the door plate.

Further, according to the invention of claim 5,
The member can be easily attached to the frame structure. Further, according to the invention according to claim 6, the appearance of the warpage prevention device can be improved. Further, according to the invention according to claim 7, it is possible to provide a warp preventing device which can be used even when a pivot hinge having a door plate position adjusting mechanism is used in a door structure. Furthermore, according to the invention of claim 8, it is possible to reliably prevent the door plate from becoming unrotatable.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Here, embodiments of the present invention will be described in the following order. (1) Outline of entrance door structure: (2) Configuration of warpage prevention bracket: (3) Modification of warpage prevention bracket:

(1) Outline of Entrance Door Structure: FIG. 1 is a plan view showing a front appearance of an entrance door structure according to an embodiment of the present invention. Hereinafter, the front side of the drawing will be described as the front side, but the description will be made by appropriately changing the installation state of the entrance door structure. As shown in the figure, a metal frame structure 10 having a substantially rectangular opening 10a is installed in the entrance door structure, and a wooden door plate 20 is fitted into the opening 10a. A handle 20a is provided on the left side of the door plate 20.
A door upper pivot hinge 21 is disposed above the door plate 20 on the right side thereof, and a door lower pivot hinge 22 is disposed below the door pivot pivot hinge 22. In addition, the frame structure 10
On the right side of the opening, the upper frame pivot hinge 11 is disposed at a position facing the door upper pivot hinge 21, and the lower frame pivot hinge 1 is positioned at a position facing the door lower pivot hinge 22.
2 are arranged.

With this configuration, when the door plate 20 is constructed,
The axis of the lower frame pivot hinge 12 is mounted on the bearing of the door lower pivot hinge 22, and the door upper pivot hinge 21 is mounted.
Is attached to the bearing of the upper frame pivot hinge 11. Then, the position of the door plate 20 with respect to the frame structure 10 is adjusted to the front, rear, left and right as shown in FIG. 2 by rotating the adjusting screw in the bearing of each pivot hinge 11, 22 in a predetermined direction. Thus, the door plate 20 is
a of the pivot hinge 2 by pulling the left handle 20a forward.
It becomes possible to open forward with the vertical axis connecting the first and second 22 as a support axis. In particular, as shown in FIG. 3, the frame structure 10 includes a packing 1 at a rear position at a right end of the door plate 20.
3, the rear surface of the door plate 20 is
In that the rear surface position of the door plate 20 with respect to the packing 13 can be set so as not to interfere with
Adjustment of the position of the door plate 20 by the pivot hinges 11 and 22 is effective.

By the way, in general, in the case of a front door structure, the wooden door plate 20 may be warped due to sunlight from the front or exposure to wind and rain. In particular, when the vicinity of the center of the door plate 20 is warped backward, the back surface of the door plate 20 often interferes with the packing 13 and hinders the opening and closing of the door plate 20 in many cases. Therefore, in the present embodiment, as shown in the figure, a warp prevention metal fitting 30 is attached between the vicinity of the center of the right end of the door plate 20 and the frame structure 10 at the opposing position.

(2) Structure of Warpage Prevention Hardware: FIG. 4 is a sectional perspective view showing a mounting portion of the warpage prevention hardware 30. FIG. 5 is a perspective view showing a door-side fitting 31 attached to the door plate 20, and FIG. 6 is a sectional perspective view showing a frame-side fitting 32 attached to the frame structure 10. As shown in FIG. 4, the warp prevention fitting 30 includes a door-side fitting 31 as a first member according to the present invention and a frame-side fitting 32 as a second member according to the present invention. Of the door plate 20 is restricted by the frame-side fitting 32 to prevent the door plate 20 from warping beyond an allowable range.

As shown in FIG. 5, the door-side metal fitting 31 has a column-shaped regulating pin support 31a with its axis oriented in the vertical direction.
And a plate-like mounting portion 31b integrally extending from the outer peripheral surface of the restriction pin support portion 31a and having a vertical width equal to the height of the restriction pin support portion 31a.
b is screwed to the door plate 20 with the plate surface on the rear end side facing the side wall surface of the door plate 20. The regulating pin support 31a is provided with a cylindrical through hole 31a1 in the axial direction, and the through hole 31a1 has a regulating pin 31c.
Is press-fitted. The regulation pin 31c is provided on the regulation pin support 31.
a of the regulating pin support 3
When it is press-fitted into 1a, the lower end side portion protrudes from the lower end of the regulating pin support 31a.

As shown in FIG. 7, the mounting portion 31b is provided with a positioning surface 31b1 on the surface facing the door plate 20, so that when the mounting portion 31b is screwed to the door plate 20, the door 31 is screwed. The front surface of the plate 20 is pressed against the positioning surface 31b1, so that the position of the regulating pin 31c with respect to the door plate 20 is accurately determined. As shown in FIG. 6, the frame-side bracket 32 has a cylindrical regulating pin receiving portion 32 a having an axis oriented in a vertical direction, and is integrally provided from an outer peripheral surface of the regulating pin receiving portion 32 a. And a plate-like mounting portion 32b having a vertical width corresponding to the height of the receiving portion 32a. The plate structure at the rear end side of the mounting portion 32b faces the opening periphery of the frame structure 10 and It is screwed to.

As shown in FIG. 8, a rear end of the mounting portion 32b has a pressing surface 32 which is bent in a substantially L-shape.
b1 is provided, and when the pressing surface 32b1 is screwed, the pressing surface 32b1 comes into contact with a protruding portion 10a1 shown in FIG. 6 that extends from the opening 10a to the rear side of the door plate 20. When a rearward load is applied to the frame-side fitting 32, the pressing surface 32b1 is pressed against the protruding portion 10a1 from the front, and the fixing position of the frame-side fitting 32 is maintained. In this sense, the protruding portion 10a1 constitutes the front / rear positioning portion according to the present invention. With this configuration, when the axis of the lower frame pivot hinge 12 is mounted on the bearing of the door lower pivot hinge 22 and the axis of the door upper pivot hinge 21 is mounted on the bearing of the upper frame pivot hinge 11, FIG.
As shown in FIG. 3, the regulating pin 31c is connected to the regulating pin receiving portion 32a.
Into the through hole 32a1.

Then, as shown in FIG. 2, when the position of the door plate 20 with respect to the frame structure 10 is adjusted to the front, rear, right and left, as shown in FIG.
It horizontally moves back and forth and right and left inside the through hole 32a1 in 2a. As described above, when the regulating pin 31c horizontally moves forward, backward, left, and right inside the through hole 32a1, the regulating pin 31c is moved within the range surrounded by the peripheral wall surface of the through hole 32a1, that is, each pivot. Hinge 1
The restriction pin 31c can be moved at the time of construction, while being restricted by the adjustment ranges of 1 and 22.

When the door plate 20 warps rearward and the regulating pin 31c moves rearward, it comes into contact with the linear portion A of the through-hole 32a1 when it moves by a predetermined amount. At this time, if the regulating pin 31c attempts to move further backward, the movement of the regulating pin 31c is regulated by the regulating pin receiving portion 32a as shown in FIG. Warpage is prevented. That is,
When warpage occurs, the maximum amount of rearward displacement of the door plate 20 can be set in advance based on the distance from the regulating pin 31c to the linear portion A of the through hole 32a1, and this distance is set to the rear position of the door plate 20. By setting the movement amount equal to or smaller than the allowable movement amount, the door plate 20 can be prevented from being unable to open and close.

The reason why the linear portion A is formed on the rear wall surface of the through hole 32a1 is that each pivot hinge 11,
When the regulating pin 31c moves in the left-right direction at the time of the position adjustment by 2, as shown in FIG. 12, even if the regulating pin 31c moves backward from any position, the maximum displacement amount of the regulating pin 31c in the backward direction is made uniform. To do that. Also, the through hole 3
The curved portions B are formed on the left and right wall surfaces of 2a1.
When the position of the door plate 20 is adjusted by the pivot hinges 11 and 22, as shown in FIG. 13, this is for securing a wide area where the regulating pin 31c can freely move. That is, forming the left and right wall surfaces of the through-hole 32a1 in an arc shape is useful in that it can be moved in the left-right direction over a wider range than the left-right width of the linear portion A. further,
The straight wall portion A 'is also formed on the front wall surface of the through hole 32a1 similarly to the rear wall surface because the door plate 20 may warp forward and the right end of the door plate 20 may be displaced forward. To get it. Also in this case, similarly to the linear portion A, the restriction pin 3 is independent of the position in the left-right direction.
The amount of forward movement of 1c becomes uniform. Therefore, the door plate 2
When 0 warps forward, by restricting the amount of forward displacement at the right end of the door plate 20, it is possible to prevent the frame structure 10 and the door plate 20 from interfering with each other to prevent opening and closing. Become.

In the present embodiment, the regulating pin 31c is inserted from above into the through hole 32a1 of the regulating pin receiving portion 32a, thereby blocking the upper opening of the through hole 32a1 and preventing the accumulation of dust and the like. Since such a configuration is merely an example, it may be configured such that the restriction pin 31c can be inserted into the through hole 32a1 from below. In that case, a cover for closing the upper opening of the regulation pin receiving portion 32a may be attached, or the regulation pin 31c may be attached.
So that the upper end of the hole reaches the upper opening of the through hole 32a1.
A device such as adjusting the length of the restriction pin 31c is also effective. In the above description, the single-door type entrance door structure is adopted. However, since the present invention does not limit the type of the door structure, it can be applied not only to the entrance door but also to all doors. It is also possible to apply the present invention to a double door type front door structure. When a plurality of door plates are installed, a plurality of warp preventing brackets 30 may be provided as necessary.
Can be attached. In addition, warp prevention fitting 3
0 is applicable not only to a wooden door plate but also to a case where a door plate made of metal such as aluminum is used for the entrance door structure from the viewpoint of a device for preventing warpage of the door plate.

(3) Modification of Warpage Prevention Bracket: The restriction pin receiving portion 32a according to the present embodiment has a through hole 32a1 having a shape as shown in FIG. 10, but this is only an example of the configuration. Therefore, the shape of the through-hole 32a1 can be changed. For example, the through hole 32a1 is
The shape shown in FIG. As shown in the figure, a pair of linear portions C, C formed in the front-rear direction is provided.
Are connected by a semicircular curved part D, and each right end is connected by a semicircular curved part E.
Then, the through holes 32a correspond to the lengths of the linear portions C, C.
Since the width of 1 in the left-right direction is relatively widened, it is possible to further increase the degree of freedom in setting the position of the regulating pin 31c when the position of the door plate 20 is adjusted by the pivot hinges 11 and 22.

Further, as shown in FIG.
By attaching a cover 40 that covers the opposing portion of the metal fitting 1 and the frame-side fitting 32, the appearance of the warp prevention fitting 30 can be improved. For example, as shown in FIG.
When the outer shape of the regulating pin support portion 31a and the outer shape of the regulating pin receiving portion 32a are different, and a step is generated in a portion where the door-side fitting 31 and the frame-side fitting 32 face each other, the cover 40 is attached so as to cover this step. In FIG. 15, the cover 40 is screwed to the door-side metal fittings 31, but such a configuration is merely an example, and it is only necessary to cover and hide the opposing portion between the door-side metal fittings 31 and the frame-side metal fittings 32. Therefore, the cover 40 can be screwed to the frame-side fitting 32, or can be formed integrally with either the door-side fitting 31 or the frame-side fitting 32.

Further, as shown in FIG. 16, the regulating pin receiving portion 32a can be formed in a shape other than a cylindrical shape. The restricting pin receiving portion 50 shown in the figure has a linear portion F provided at a rear portion where the mounting portion 51 is extended, and both ends of the linear portion F are bent forward, so that the protrusion according to the present invention is formed. Guide portions F1 and F1 are formed. Then, when the position of the door plate 20 is adjusted by the pivot hinges 11 and 22, the position of the regulating pin 31c can be adjusted. At this time, if the regulation pin 31c is set between the guide portions F1 and F1, when the regulation pin 31c moves rearward due to the warpage of the door plate 20,
As in the case of the linear portion A of the present embodiment, the rearward movement of the regulating pin 31c can be restricted by the linear portion F.

Further, as shown in FIG. 17, contrary to the present embodiment, it is also possible to provide a regulating pin receiving portion 61 on the door plate 60 and a regulating pin support 71 on the frame side fitting 70. . Then, when the position of the door plate 20 is adjusted by the pivot hinges 11 and 22, the regulating pin receiving portion 61 is used.
The wall surface of the through hole 61a provided in the
The front, rear, left and right can be adjusted as desired within a range until it comes into contact with the restricting pin 71a press-fitted into the device. When the door plate 20 warps, the regulating pin receiving portion 61 moves rearward as the door plate 20 is displaced rearward, but the regulating pin 71a contacts the front wall surface of the through hole 61a. The rearward movement of the restriction pin receiving portion 61 is restricted.

At this time, the door-side metal fitting 60 has a positioning surface 62 formed by bending a rear end of the door metal plate 60 into a substantially L-shape. 20. With this configuration, when the door plate 20 is warped, when the front wall surface of the through hole 61a is pressed forward by the restriction pin 71a, the positioning surface 62 of the door-side metal fitting 60 is pressed rearward by the rear surface of the door plate 20. The front wall surface and the door plate 20 are positioned and positioned.
Is kept constant. In the case shown in the figure, if the regulating pin 71a is arranged on an extension of the rotation axis of the pivot hinges 11 and 22, when the door plate 20 is opened and closed, the door-side bracket 60 uses the regulating pin 71a as a support shaft. 18, the movement of the regulation pin receiving portion 61 toward the door plate 20 is regulated by the regulation pin 71a even during the opening and closing operation of the door plate 20.
This is useful in that warpage of the sheet can be prevented.

As described above, in the present embodiment, when the position of the door plate 20 is adjusted by the pivot hinges 11 and 22, the regulating pin 31c can move back and forth and right and left within a range surrounded by the peripheral wall surface of the through hole 32a1. Become. Further, even when the door plate 20 is warped, the regulating pin 31c is not
The rearward movement of a predetermined amount or more by the linear portion A of a1 is restricted. For this reason, it is possible to prevent the door plate 20 from warping beyond an allowable range and prevent the door plate 20 from being unable to open and close.

[Brief description of the drawings]

FIG. 1 is a plan view showing a front appearance of an entrance door structure according to an embodiment.

FIG. 2 is a diagram showing a position change of a door plate when adjustment is performed by a pivot hinge.

FIG. 3 is a sectional view showing a configuration of a right end portion of the door plate shown in FIG.

FIG. 4 is a cross-sectional perspective view showing a mounting portion of a warpage prevention fitting.

FIG. 5 is a perspective view showing an appearance of a door-side fitting.

FIG. 6 is a cross-sectional perspective view showing the appearance of a frame-side fitting.

FIG. 7 is a plan view showing a configuration of a door side fitting.

FIG. 8 is a plan view showing a configuration of a frame-side fitting.

FIG. 9 is a plan view showing the state of attachment of the warp prevention fitting.

FIG. 10 is a cross-sectional view showing a positional relationship between a regulating pin and a regulating pin receiving portion.

FIG. 11 is a cross-sectional view showing a situation when a regulating pin moves rearward due to warpage of a door plate.

FIG. 12 is a plan view for explaining a linear portion.

FIG. 13 is a plan view for explaining a curved portion.

FIG. 14 is a plan view showing a regulation pin receiving portion having through holes of different shapes.

FIG. 15 is a side view showing a situation when a cover is attached to the warp prevention fitting.

FIG. 16 is a plan view showing restriction pin receiving portions having different shapes.

FIG. 17 is a cross-sectional view showing a configuration in a case where a regulation pin receiving portion is provided on the side of the door-side bracket.

FIG. 18 is a plan view showing a trajectory of a door-side bracket when the door plate is opened and closed.

FIG. 19 is a cross-sectional view illustrating a configuration of a warp prevention fitting according to a conventional example.

FIG. 20 is a side view showing the configuration of a warp prevention fitting according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Frame structure 10a ... Opening 10a1 ... Projection part 11 ... Upper frame pivot hinge 12 ... Lower frame pivot hinge 13 ... Packing 20 ... Door plate 20a ... Handle 21 ... Door upper pivot hinge 22 ... Door lower pivot hinge 30 ... Warp prevention metal fitting DESCRIPTION OF SYMBOLS 31 ... Door side metal fitting 31a ... Restriction pin support part 31a1 ... Through hole 31b ... Mounting part 31b1 ... Positioning surface 31c ... Restriction pin 32 ... Frame side metal fitting 32a ... Restriction pin receiving part 32a1 ... Through hole 32b ... Mounting part 32b1 ... Pressing Surface 40 Cover 50 Restriction pin receiving part 51 Mounting part A, C, F Linear part B, D, E Curved part F1 Guide part

Claims (8)

[Claims] 1. A door structure in which pivot hinges capable of adjusting a position of a door plate with respect to a frame structure in a horizontal direction are disposed at upper and lower corners of the door plate, respectively, and the door plate is mounted between the upper and lower pivot hinges. A first member having a cylindrical body attached to either the frame structure or the door plate while orienting the axis in a substantially vertical direction, and a through hole larger than an outer diameter of the cylindrical body. And a second member having a cylinder attached to either the frame structure or the door plate on the side where the first member is not attached while inserting the columnar body into the through hole. Characteristic warp prevention device. 2. The warpage prevention device according to claim 1, wherein the through-hole of the cylindrical body has a linear portion that can be installed substantially in parallel to the plate surface of the door plate. 3. The warpage prevention device according to claim 2, wherein the through hole of the cylindrical body includes a curved portion extending in a semicircular shape from each end of the linear portion. 4. The first member or the second member has a mounting portion for projecting from the outer wall surface of the cylindrical body or the cylindrical body to the door plate, and the mounting portion is provided on a plate surface of the door plate. The warpage prevention device according to any one of claims 1 to 3, further comprising a positioning portion that performs positioning in a front-rear direction by pressing. 5. The second member or the first member has a mounting portion projecting from the outer peripheral surface of the cylindrical body or the cylindrical body to the frame structure. The mounting portion has a substantially L-shaped tip portion. The warpage preventing device according to any one of claims 1 to 4, wherein the pressing surface is formed so that the pressing surface can be pressed against a front-rear positioning portion provided in the frame structure. 6. The warpage prevention device according to claim 1, wherein a cover that covers a facing portion is provided at a position where the cylindrical body and the cylindrical body face each other. 7. A door structure in which pivot hinges capable of adjusting a position of a door plate with respect to a frame structure in a horizontal direction are arranged at upper and lower corners of the door plate, respectively. A device for preventing warpage, comprising: a first member having a columnar body attached to the door plate while orienting an axis in a substantially vertical direction; and a predetermined distance between the columnar body and the door plate. And a second member attached to the frame structure, having a columnar receiving portion arranged to be wide in a direction substantially parallel to the plate surface of the door plate. Warp prevention device. 8. The second member has a linear portion in a direction substantially parallel to the plate surface of the door plate, and each end of the linear portion has a projecting portion on a side away from the door plate. The device for preventing warpage according to claim 7, wherein?