JP2009174206A - Steel door assembling structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steel door assembling structure which dispenses with putty finishing in spite of employment of screw fastening as a connection means. <P>SOLUTION: The steel door assembling structure is set up by superposing a depth piece of a first face member 3 comprised of a face portion 30 forming one width surface of a door, and the depth piece 31 arranged at an edge of the face portion 30, and a depth piece of a second face member 4 comprised of a face portion 40 forming the other width surface of the door, and the depth piece 41 arranged at an edge of the face portion 40, on each other, and connecting the former and the latter together by a screw 6A. The depth piece 41 that is located on the outside of the mutually superposed depth pieces 31, 41 has an extra length portion 41B located on a distal side of a screw hole 5A, and a head of the screw 6A connecting between the mutually superposed depth pieces is concealed by folding back the extra length portion 41B. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a steel door assembly structure.

In general, a steel door forms a first surface material provided with a surface portion that forms one finding surface of the door, an expected piece formed at an end portion of the surface portion, and the other finding surface of the door. Assembling is performed by connecting a surface portion and a second surface material provided with an expected piece formed at the end of the surface portion.

The connecting means includes welding means, but skill is required for welding, and further, after the welding, sanding finish or putty finishing is required, so that work efficiency is poor.

As a connecting means other than the welding means, there is a screwing method. Since screw fastening does not require special skills like welding, there is an advantage that assembly work is possible without requiring skill, but when connecting surface materials with screws, the screw head is exposed. To avoid this, putty finishing is required. Putty finishing requires a certain level of skill and is similar to welding means in that work efficiency is poor.

Further, as other connecting means, there are means for engaging or fitting members together (Patent Documents 1 and 2).
Actual Kosho 61-7357 JP-A-9-88444

An object of the present invention is to provide a door assembly structure that does not require putty finishing while employing a screw stopper as a connecting means.

According to the present invention, there is provided a first piece of the first surface material provided with a surface portion that forms one of the surface of the door and a surface piece formed at the end of the surface portion, and the other surface of the door. A steel door assembly structure in which a surface piece to be formed and a prospective piece formed at an end of the surface portion are overlapped with each other and connected with screws. The expectation piece located outside when the pieces are overlapped with each other is formed with a surplus portion located on the tip side of the screw hole, and the head portion of the screw connecting the overlapped expectation pieces, It is characterized by being hidden by folding back the extra length.

In one embodiment, the folded back extra length part is in close contact with the head of the screw. In a more specific embodiment, the prospective piece located on the outer side includes a first piece extending perpendicularly to the surface portion, and a first piece extending perpendicularly to the first piece from the tip of the first piece. The two pieces are formed in an L shape in a sectional view, and the second piece is an extra length portion. A screw hole is formed on the distal end side of the first piece, and the first piece is connected using a screw in a state where the first piece is in contact with the expected piece located inside. When the second piece is folded so as to be folded, the folded second piece conceals the screw head and closely contacts the screw head.

In one embodiment, a bent piece is formed on the distal end side of the surplus length portion, and when the surplus length portion is folded back, the leading edge of the surplus length portion faces the expected piece located on the outside. It is configured as follows. In a more specific embodiment, the prospective piece located on the outer side includes a first piece extending perpendicularly to the surface portion, and a shape perpendicular to the first piece inward from the tip of the first piece. A second piece extending, a third piece extending perpendicularly to the second piece on the side away from the surface at the tip of the second piece, and an outer side from the tip of the third piece to the third piece A fourth piece that extends vertically toward the top, and a fifth piece that is bent so that the tip of the fourth piece faces the second piece. A screw hole is formed in the third piece, and the third piece is connected using a screw in a state where the third piece is in contact with the expected piece located inside. The extra length portion is formed from a portion on the tip end side of the screw hole of the third piece, the fourth piece, and the fifth piece. When the surplus length portion of the expected piece (the portion on the tip side of the screw hole of the third piece, the fourth piece, and the fifth piece) is folded back, the folded surplus portion hides the screw head. At the same time, the fourth piece and the first piece are flush with each other, and the fifth piece extends toward the inside (the base end side portion of the third piece) so as to overlap the second piece. Since the leading edge of the piece, that is, the leading edge of the prospective piece faces the third piece, the leading edge of the prospecting piece is not exposed to the outside.

In the present invention, the expected pieces of the surface material are connected with screws, but the screw head is covered with the extra length of the folded expected piece, so there is no need to hide the screw head with a putty or the like. Therefore, processing such as putty finishing becomes unnecessary.

In the case where the folded surplus portion is in close contact with the head of the screw, the surplus length directly presses the screw head, so that there is an effect of suppressing loosening of the screw.

A bent piece is formed on the distal end side of the surplus length part, and when the surplus length part is folded, the leading edge of the surplus length part is configured to face the expected piece located on the outside. In such a case, since the leading edge of the prospective piece is not exposed to the outside, the edge processing of the leading edge (the cut-off portion by press working) is not required.

The left figure of FIG. 1 is a front view of the door 1, and as shown in the right figure, the door 1 is attached to the door frame 2 after a handle, a lock device or the like is attached, and constitutes a door device. The present invention relates to an assembly structure of a door 1.

A first embodiment of the present invention will be described with reference to FIGS. The door 1 is a steel door and is assembled from the surface materials 3 and 4. In FIG. 2B, a reinforcing member 7 having a U-shaped cross section is provided between the surface materials 3 and 4, and is essential for, for example, a fire door. If sufficient strength is obtained with only the surface materials 3 and 4 depending on the use and installation location of the door 1, the reinforcing material 7 is not necessarily an essential component in the door 1.

The surface material 3 includes a surface portion 30 that forms one of the face surfaces of the door 1, and prospective pieces 31 and 32 that are integrally bent in the width direction of the surface portion 30. The surface material 4 includes a surface portion 40 that forms the other finding surface of the door 1, and expectation pieces 41 and 42 that are integrally bent in the width direction of the surface portion 40.

The width dimension of the surface portion 30 of the surface material 3 is formed to be smaller than the width dimension of the surface portion 40 of the surface material 4, and the expected pieces 31 and 32 of the surface material 3 and the expected pieces 41 and 42 of the surface material 4 are When superposed, the expected pieces 41 and 42 of the surface material 4 are positioned outside the expected pieces 31 and 32 of the surface material 3, respectively.

In the surface material 3, the prospective pieces 31 and 32 are pieces extending perpendicularly to the surface portion 30. As is apparent from the drawings, each of the prospective pieces 31 and 32 is formed of a double plate portion formed by hemming the end portion of the plate material.

In the surface material 4, the prospective pieces 41 and 42 are first pieces 41 </ b> A and 42 </ b> A extending perpendicularly to the surface portion 40, and the first pieces 41 </ b> A and 42 </ b> A from the tips of the first pieces 41 </ b> A and 42 </ b> A outward. The second pieces 41B and 42B extending in a vertical direction with respect to (only the folded state is shown in FIG. 2) are formed in an L shape in a sectional view. A plurality of screw holes 5A are formed on the front end side of the first pieces 41A, 42A at a predetermined interval in the length direction, and a portion where the screw holes 5A are formed is a folded second piece. Recesses 41a and 42a are formed to receive 41B and 42B. In the prospective pieces 41 and 42, the second pieces 41B and 42B are extra length portions.

The first pieces 41A and 42A of the expectation piece 41 and the expectation pieces 31 and 32 have substantially the same dimensions. When the expectation piece 31 of the surface material 3 and the expectation piece 41 of the surface material 4 are overlapped, the recess 41a on the tip side of the first piece 41A of the expectation piece 41 of the surface material 4 is outside the expectation piece 31 of the surface material 3. It comes to contact. Similarly, when the expectation piece 32 of the surface material 3 and the expectation piece 42 of the surface material 4 are overlapped, the recess 42 a on the tip side of the first piece 42 </ b> A of the expectation piece 42 of the surface material 4 is the expectation piece 32 of the surface material 3. It comes in contact with the outside.

A method of assembling the door 1 will be described based on the connection between one prospective piece 31 of the surface material 3 and one prospective piece 41 of the surface material 4.

As shown in FIG. 3, the expected piece 31 of the surface material 3 and the expected piece 41 of the surface material 4 are overlapped. At this time, the recess 41a on the front end side of the first piece 41A of the expectation piece 41 of the surface material 4 is in contact with the outside of the expectation piece 31 of the surface material 3, and the front end of the expectation piece 31 of the surface material 3 is the surface material 4 It is close to the inside of the surface portion 40 of the.

And the 1st piece 41A (recessed part 41a) of the overlapped expectation piece 41 of the surface material 4 and the expectation piece 31 of the surface material 3 are connected at a predetermined interval in the length direction using a plurality of screws 6A. The screw 6A is a countersunk screw, and in the state where the screw 6A is attached, the head thereof is flush with the concave portion 41a on the distal end side of the first piece 41A.

In this state, as shown in FIG. 4, the second piece 41B of the expectation piece 41 is bent toward the recess 41a by the pressing means P1 and P2. The 2nd piece 41B is formed in the dimension substantially the same as the recessed part 41a, and the folded back 2nd piece 41B is stored in the recessed part 41a, and closely_contact | adheres to the head of the screw 6A. In this way, since the second piece 41B of the expected piece 41 that is folded back directly presses the head of the screw 6A, there is an effect of suppressing the looseness of the screw 6A.

A second embodiment of the present invention will be described with reference to FIGS. The steel door 1 is assembled from the surface materials 3 and 4. The surface material 3 includes a surface portion 30 that forms one of the face surfaces of the door 1, and prospective pieces 31 and 32 that are integrally bent in the width direction of the surface portion 30. The surface material 4 includes a surface portion 40 that forms the other finding surface of the door 1, and expectation pieces 41 and 42 that are integrally bent in the width direction of the surface portion 40.

The width dimension of the surface portion 30 of the surface material 3 is formed to be smaller than the width dimension of the surface portion 40 of the surface material 4, and the expected pieces 31 and 32 of the surface material 3 and the expected pieces 41 and 42 of the surface material 4 are When superposed, the expected pieces 41 and 42 of the surface material 4 are positioned outside the expected pieces 31 and 32 of the surface material 3, respectively.

In the surface material 3, the prospective pieces 31 and 32 are pieces extending perpendicularly to the surface portion 30. As is apparent from the drawings, each of the prospective pieces 31 and 32 is formed of a double plate portion formed by hemming the end portion of the plate material.

In the surface material 4, the expectation pieces 41 and 42 extend as a whole perpendicular to the surface portion 40, but the tip half is formed in a concave shape. More specifically, the prospective piece 41 includes a first piece 410 (a half on the base end side) that extends perpendicularly to the surface portion 40, and a first piece inward from the distal end of the first piece 410. A second piece 411 extending perpendicularly to 410, a third piece 412 extending perpendicularly to the second piece 411 on the side of the tip of the second piece 411 away from the surface portion 40, and A fourth piece 413 extending perpendicularly to the third piece 412 from the tip of the three piece 412 to the outside, and a fifth piece formed by bending the tip of the fourth piece 413 so as to face the second piece 412 414. Similarly, the prospective piece 42 includes a first piece 420 that extends vertically with respect to the surface portion 40, a second piece 421 that extends vertically from the tip of the first piece 420, and a second piece 421. A third piece 422 extending vertically from the tip of the piece 421 toward the side away from the surface portion 40, a fourth piece 423 extending vertically from the tip of the third piece 422 outward, and a fourth piece 423. And a fifth piece 424 having a bent tip.

A plurality of screw holes 5B are formed in the third pieces 412 and 422 of the expectation pieces 41 and 42 of the surface material 4 at predetermined intervals in the length direction, and the expectation pieces 31 and 32 of the surface material 3 and the surface When the expected pieces 41 and 42 of the material 4 are overlapped, the third pieces 412 and 422 of the expected pieces 41 and 42 of the surface material 4 come into contact with the outside of the expected pieces 31 and 32 of the surface material 3. .

As shown in FIG. 6, the third piece 412 is formed with a guide groove 412a for bending located outside. The third piece 412 includes a first portion 412A on the proximal end side from the guide groove 412a and a second portion 412B on the distal end side from the guide groove 412a. In the expectation piece 41, an extra length portion is formed from the second portion 412 </ b> B, the fourth piece 413, and the fifth piece 414 of the third piece 412.

In the third piece 412, the dimension from the base end to the guide groove 412a (that is, the dimension of the first portion 412A) is substantially the same as the dimension of the fourth piece 413, and from the base end of the prospective piece 41. The dimension up to the guide groove 412a (that is, the dimension of the first piece 410 + the dimension of the first portion 412A) is substantially the same as the dimension of the expected piece 31 of the surface material 3, and the guide groove of the third piece 412 The dimension of the part ahead of 412a (that is, the dimension of the second part 412B) is substantially the same as the difference between the dimension of the surface part 30 and the surface part 40 on one end side (that is, the dimension of the second piece 411). The size of the expectation piece 41 and the position of the guide groove 412a are designed. The third piece 422 (first portion 422A + second portion 422B) has a similar configuration.

A method of assembling the door 1 will be described based on the connection between one prospective piece 31 of the surface material 3 and one prospective piece 41 of the surface material 4.

As shown in FIG. 6, the expected piece 31 of the surface material 3 and the expected piece 41 of the surface material 4 are overlapped. At this time, the third piece 412 of the expectation piece 41 of the surface material 4 is in contact with the outside of the expectation piece 31 of the surface material 3, and the tip of the expectation piece 31 of the surface material 3 is located inside the surface portion 40 of the surface material 4. It is close.

The expectation piece 41 (third piece 412) of the surface material 4 and the expectation piece 31 of the surface material 3 are connected using a plurality of screws 6B (truss screws in the illustrated example). In this state, the second portion 412 </ b> B on the tip side of the guide groove 412 a of the third piece 412 of the prospective piece 41 protrudes from the surface portion 30 of the surface material 3.

By the pressing means P3 and P4, the second portion 412B protruding from the surface portion 30 is caused to exert a pressing force directed outward in the vertical direction, and then a pressing force directed inward to the fourth piece 413, so that the third piece 412 of the expectation piece 41 The second part 412B is bent 90 degrees around the guide groove 412a so that the fourth piece 413 and the first piece 410 are flush with each other. At this time, the fifth piece 414 extends toward the inner side (first portion 412A) so as to overlap the second piece 411, and the leading edge of the prospective piece 41 is not exposed to the outside.

In the first embodiment and the second embodiment, the same connection structure is adopted for both the expected pieces at the end portions in the width direction of the surface materials 3 and 4, but the connection structure according to the present invention is arranged at either end. You may employ | adopt only for the connection of the prospective pieces of a part. 8 (A) and 8 (B), the connection structure of one prospective piece is the first embodiment and the second embodiment, and the other connection structure is adopted as the connection structure of the other prospective piece. Yes. The connection structure of the other expected pieces will be described with reference to FIGS.

One prospective piece 8 of the surface material 3 is a first piece 80 extending perpendicularly to the surface portion 30, and a first piece 80 curved in a bulging shape toward the surface portion 30 toward the inside from the tip of the first piece 80. Two pieces 81. A plurality of engagement receiving holes 82 are formed in the second piece 81 at intervals in the length direction. The engagement receiving hole 82 is notched at the end edge of the curved second piece 81, and includes a wide portion 820 and a narrow portion 821.

One prospective piece 9 of the surface material 4 extends in a vertical direction with respect to the first piece 90 extending inward from the front end of the first piece 90 and a first piece 90 extending perpendicularly to the surface portion 40. The second piece 91 is formed, and a third piece 92 extending perpendicularly to the second piece 91 on the side away from the surface portion 40 at the tip of the second piece 91. A plurality of engagement protrusions 93 are formed on the third piece 92 at intervals in the length direction. The engagement protrusion 93 includes a narrow end portion 930 on the proximal end side and a wide end portion 931 on the distal end side. The width of the narrow portion 930 of the engagement protrusion 93 is slightly smaller than the width of the narrow portion 821 of the engagement receiving hole 82.

As shown in FIG. 10, while the engagement receiving hole 82 of the expectation piece 8 is applied to the narrow portion 930 of the engagement protrusion 93 of the expectation piece 9, the face portions 80 and 90 are rotated until they are flush with each other. Thus, the engagement protrusion 93 and the engagement receiving hole 82 are engaged. In this state, the movement in the width direction of the narrow portion 930 of the engagement protrusion 93 is restricted by the narrow portion 821 of the engagement receiving hole 82. By connecting the other expected pieces of the surface materials 3 and 4 by the connecting means of the present invention, the rotation of the surface materials 3 and 4 is restricted, and the rotation of the surface materials 3 and 4 is restricted. The engaged state of 8 and 9 is maintained.

The present invention can be used for assembling a steel door.

The left figure is a front view of the door, and the right figure is a front view of the door device. (A) It is a cross-sectional view of the door which concerns on 1st Embodiment of this invention. (B) It is a figure similar to FIG. 2 (A), and the reinforcing material is provided between the surface materials. It is explanatory drawing of the door assembly structure of the 1st Embodiment of this invention. It is explanatory drawing of the door assembly structure of the 1st Embodiment of this invention. (A) It is a cross-sectional view of the door which concerns on 2nd Embodiment of this invention. (B) It is a figure similar to FIG. 5 (A), and the reinforcing material is provided between the surface materials. It is explanatory drawing of the door assembly structure of the 2nd Embodiment of this invention. It is explanatory drawing of the door assembly structure of the 2nd Embodiment of this invention. (A) It is a cross-sectional view of a door, Comprising: The connection structure which concerns on 1st Embodiment is employ | adopted only for the connection of one prospective piece. (B) It is a cross-sectional view of a door, Comprising: The connection structure which concerns on 2nd Embodiment is employ | adopted only for the connection of one prospective piece. It is a figure which shows the connection means of the other prospective pieces in FIG. 8, Comprising: (A) shows the state which prospective pieces connected, (B) shows one prospective piece, (C) shows the other expectation. Shows a fragment. It is a perspective view explaining the connection means of the other prospective pieces in FIG. It is sectional drawing explaining the connection means of the other prospective pieces in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door 3 Surface material 30 Surface part 31 Expectation piece 32 Expectation piece 4 Surface material 40 Surface part 41 Expectation piece 42 Expectation piece 5A, 5B Screw hole 6A, 6B Screw

Claims (3)

A surface part forming one finding surface of the door; a expecting piece formed at an end of the surface part; the expecting piece of the first surface material, and a surface part forming the other finding surface of the door; A steel door assembly structure in which the expected pieces of the second surface material provided with the expected pieces formed at the end of the surface portion are overlapped and connected with screws.
The expectation piece located outside when the expectation pieces are overlapped with each other has an extra length portion located on the tip side of the screw hole, and the head of the screw connecting the overlapped expectation pieces is The steel door assembly structure is concealed by folding back the extra length portion.   The steel door assembly structure according to claim 1, wherein the folded-back surplus portion is in close contact with the head of the screw.   A bent piece is formed on the distal end side of the surplus length part, and when the surplus length part is folded, the leading edge of the surplus length part is configured to face the expected piece located on the outside. The steel door assembly structure according to claim 1.

Images