JP4620683B2 - Reinforcing body assembly and method for manufacturing steel door - Google Patents

Description

The present invention, single-family homes, or fire protection steel door to be used as the entrance gate of flats, such as apartments, in particular, impact to improve the reinforcing member provided inside the door structure having a metallic material The present invention relates to a reinforcing body assembly used for a steel door having durability such as heat resistance and fire resistance, and a method for manufacturing a steel door using the reinforcing body assembly .

  In general, it is a well-known fact that steel doors having excellent crime prevention and fire prevention functions are used at the entrances of single-family houses such as homes, or apartment houses such as apartments and simultaneous houses. An example of an existing steel door for this is shown in FIGS.

  FIG. 1 is a perspective view of a conventional steel door with a part cut away, FIG. 2 is a perspective view according to the direction of line II in FIG. 1, and FIG. 3 is an enlarged view of a portion A in the display of FIG. It is.

  As shown in the figure, an existing steel door 1 is composed of steel plates 2a and 2b that are arranged to face each other in a state where two are separated from each other, and a honeycomb (Honeycomb) structure provided on the inner surface side of each of the steel plates 2a and 2b. The reinforcing members 3a and 3b are made of paper.

  In such an existing steel door 1, first, urethane foams 4a and 4b having adhesive properties are applied to the inner surfaces of steel plates 2a and 2b manufactured in a predetermined size with a predetermined thickness. Reinforcing bodies 3a and 3b made of paper material having a honeycomb structure are provided on the urethane foams 4a and 4b of the respective steel plates 2a and 2b coated with 4b. Next, after the steel plates 2a and 2b are overlapped so that the reinforcing bodies 3a and 3b come into contact with each other, the reinforcing bodies 3a and 3b are subjected to a hardening action according to foaming of the urethane foam 4a and 4b by a thermocompression bonding process. The steel plates 2a and 2b are integrally attached and fixed, and then completed by a finishing process around the steel plates 2a and 2b.

  In the above description, the most important reason for placing the paper-made reinforcing bodies 3a and 3b inside the door 1 is to apply a reinforcing force to the steel plates 2a and 2b forming the door 1 so that the steel plates 2a and 2b can be brought into the interior from an external impact. This is to prevent deformation such as indentation, and to provide heat insulation and fire prevention functions.

  However, the existing steel door 1 configured as described above has the following problems due to structural defects of the reinforcing bodies 3a and 3b.

  (1) Since the reinforcing body provided on the existing door 1 is made of paper, there is a drawback that it is easily damaged by moisture or heat. (2) Further, when the existing door 1 makes the steel plates 2a and 2b abut each other, each honeycomb part of the reinforcing bodies 3a and 3b has an internal part excluding a part of the outside. The whole will be in a vacuum state, whereby the urethane foam 4a, 4b applied to the surfaces of the steel plates 2a, 2b located in the honeycomb portion will also be in a vacuum atmosphere. The vacuum atmosphere becomes a hindrance to prevent the foaming of the urethane foams 4a and 4b (for reference, the urethane foam is activated and hardened if the air circulation is good, otherwise the original urethane foam Will maintain the physical properties of the over-time), which, consequently is no longer able to properly adhere to the reinforcing member is steel, there is a drawback that results in mass production of defective door.

An object of the present invention is to provide a reinforcing member assembly made of a metal material, which is used for a steel door and easy to receive and transport, and a method for manufacturing a steel door using the reinforcing member assembly .

In order to achieve the above object, the invention according to claim 1 is a reinforcing body assembly for forming a reinforcing body having a honeycomb structure provided with a foamed urethane foam between a pair of steel plates constituting a steel door. der is, and, to a large number of sheets parallel array sheet-like metal member having a predetermined length, it joined by joints to the metal member adjacent to said metallic member coupled at said coupling portion to each other, it is reinforcing member assembly der for the honeycomb structure by in fold music Gaité deployed on opposite sides of the said coupling portion,
Each of the coupling parts is a fitting method using a fitting piece and a fitting protrusion to be fitted to the fitting piece,
Wherein each of the metallic member, the opposing surface to be a binding site of said metal member adjacent is provided so as to be alternately and on the other hand side and the other side at a predetermined interval in the longitudinal direction Rutotomoni, the opposite The coupling part is provided on the surface ;
It is a reinforcing body assembly characterized in that the adjacent metal members are arranged side by side in a flat shape in a state where the metal members are joined by the joining portion.

The invention according to claim 2 is the reinforcing body assembly according to claim 1 , wherein each of the metal members has a hole through which the foamed urethane foam flows .

Invention of Claim 3 is a manufacturing method of the steel door formed by arrange | positioning the reinforcement body of a honeycomb structure with a foamed urethane foam between a pair of steel plates,
The reinforcing body assembly according to claim 1 or 2 is used as the reinforcing body, and the adjacent metal plates coupled at the coupling portion in the reinforcing body assembly are bent to the opposite side with the coupling portion interposed therebetween. The steel door manufacturing method is characterized in that the steel door is formed between the pair of steel plates after being developed by the method of forming a honeycomb structure.

  As described above, according to the present invention, the reinforcing material used for the steel plate is composed of a high-strength metal member, and the metal member is formed with a through-hole that activates foaming of urethane foam so that the reinforcing body is attached to the steel plate. This makes it possible to extend the life of the door by always maintaining its original state without detachment or deformation of the reinforcement body from moisture or external impact, and increase the ability to insulate and ignite heat. effective.

  In addition, the present invention makes it easy to receive and transport a reinforcing body composed of a metal member, which is a reinforcing member used for a steel plate, so that the metal member is unfolded or folded. effective.

  The above objects and advantages, and other features will be apparent from the following description with reference to the accompanying drawings.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  4 is an exploded perspective view of the steel door according to the first embodiment of the present invention, FIG. 5 is an enlarged cross-sectional view taken along the line II-II in FIG. 4, and FIG. 6 is a portion B of the display in FIG. It is an enlarged view.

  As illustrated, the steel door 10 according to the first embodiment of the present invention is provided between a pair of first steel plates 12a and 12b having a predetermined width, and the first steel plates 12a and 12b are deformed. 1st reinforcement bodies 30a and 30b which give the reinforcement force for preventing it from being provided are provided. Since the first reinforcing bodies 30a and 30b have the same configuration, only the reinforcing body indicated by the reference numeral 30a when viewed from FIG. 4 will be described below.

  The first reinforcing body 30a is formed by fitting metal members 32a and 34a, unlike a conventional reinforcing body made of paper. The first metal members 32a and 34a are a plurality of steel pieces having a predetermined thickness and length corresponding to the horizontal and vertical sizes of the first steel plates 12a and 12b. The first reinforcing body 30a that forms a large number of first square grooves 36a is formed by fitting in a lattice shape. The first metal members 32a and 34a constituting the first reinforcing body 30a are provided with first through holes 38a at a predetermined interval.

  The first reinforcing bodies 30a and 30b having such a configuration produce the steel door 10 by the same method as described in the conventional embodiment (see FIGS. 1 to 3). That is, the first reinforcing bodies 30a and 30b are disposed so as to be respectively located on the upper surfaces of the first urethane foams 40a and 40b already applied to the inner surfaces of the first steel plates 12a and 12b with a predetermined thickness. Next, by stacking the first steel plates 12a and 12b so that the first reinforcing bodies 30a and 30b are in contact with each other, a thermocompression bonding process is performed, whereby the first urethane foams 40a and 40b are foamed. The steel door 10 is manufactured in such a manner that the first reinforcing bodies 30a and 30b are fixed and attached integrally to the first steel plates 12a and 12b by a hardening action.

  In such a manufacturing process, the first rectangular grooves 36a of the first reinforcing bodies 30a and 30b used as the reinforcing material of the steel door 10 according to the first embodiment of the present invention have the inside thereof as the first metal. As shown by the arrows in FIGS. 5 and 6, the outside air can be freely entered and exited by being in communication with the outside through the first through holes 38 a provided in the members 32 a and 34 a.

  Thus, the fact that the inside of the first rectangular groove 36a of the first reinforcing bodies 30a, 30b is made the same as the state in the atmosphere that is not in a vacuum state by the outside air passing through the first through hole 38a is the thermocompression bonding. The foaming of the first urethane foam 40a, 40b, which is sometimes located inside the first square groove 36a, is activated and the first reinforcing bodies 30a, 30b adhere more firmly to the first steel plates 12a, 12b. This is because it is not easily detached due to impact or moisture.

  The first through holes 38a formed in the first reinforcing bodies 30a and 30b are formed when the first urethane foams 40a and 40b applied to the first steel plates 12a and 12b are foamed. It provides the function of the passage through which the foams 40a, 40b flow. Therefore, the first urethane foams 40a and 40b are cured in a state where the first urethane foams 40a and 40b are located inside the first through holes 38a of the first reinforcing bodies 30a and 30b, and the first reinforcing bodies are formed from the first steel plates 12a and 12b. It acts like a connecting ring for supporting 30a, 30b, and makes the adhesion strength of the first reinforcing bodies 30a, 30b to the first steel plates 12a, 12b even harder.

  FIG. 7 is an exploded perspective view showing a state before separation by separating only a part of the reinforcing body.

  Each of the first metal members 32a and 34a forming the first reinforcing body 30a is in a lattice shape through first cutting grooves 35a formed at regular intervals along the longitudinal direction of the first metal members 32a and 34a. The reinforcing body 30a that forms the first square groove 36a (see FIG. 4) is formed by fitting in the above. The first reinforcing member 30a can be separated and assembled between the first metal members 32a and 34a by the first cutting groove 35a, and the first metal members 32a and 34a can be assembled to each other. Even in a state where the reinforcing body 30a is formed, when a force is applied to the first reinforcing body 30a, the first reinforcing body 30a can be folded by the flow of the first cutting groove 35a. .

  8 is an exploded perspective view showing a steel door according to a second embodiment of the present invention, FIG. 9 is an enlarged sectional view taken along the line III-III of FIG. 8, and FIG. 11 is a partially enlarged view showing a portion, FIG. 11 is a separated perspective view showing a state before fitting by separating only a part of the reinforcing body, and FIG. 12 is a partially enlarged view showing a D portion of the display of FIG. FIG. 13 is a partially enlarged view showing the fitted state in FIG.

  As illustrated, the steel door 100 according to the second embodiment of the present invention has a pair of second steel plates 112a having a predetermined width in the same manner as the structure of the steel door 10 according to the first embodiment of the present invention. , 112b and a door body forming a space for receiving the second urethane foams 140a, 140b, which are foamed to fix the second steel plates 112a, 112b inside, and between the second steel plates 112a, 112b. A plurality of second metal members 132a and 134a having a predetermined length are disposed on the inner surface of the first space and are expanded or folded through second cutting grooves 135a formed at regular intervals along the length thereof. As described above, the second urethane foams 140a and 140b are filled in the second square groove 136a and hardened by being joined together in a lattice shape having the second square groove 136a. Further, the second reinforcement foams 130a and 130b fixed so as to be integrated with the second steel plates 112a and 112b, and the second metal members 132a and 134a are perforated at a predetermined interval, and the second urethane foam 140a. 140b provides a place for fixing the second steel plates 112a, 112b and the second metal members 132a, 134a in a state where the second metal members 132a, 134a penetrate the second metal members 132a, 134a, and the second urethane foams 140a, 140b The second through hole 138a forms a passage for flowing and hardening along the second square groove 136a.

  The steel door 100 according to the second embodiment of the present invention is manufactured through the second reinforcing bodies 130a and 130b by performing the same manufacturing process as described in the steel door 10 according to the first embodiment of the present invention. Therefore, it has the same functions and effects as those derived from the steel door 10 of the first embodiment according to the present invention, and the detailed description thereof is the first according to the present invention. It replaces with description of the steel door 10 of embodiment.

  In such a structure, the steel door 100 according to the present invention has the second metal members 132a and 134a formed with the locking steps 151a and 151b and the locking pieces 152, respectively, and the fitted second metal. The separation of the members 132a and 134b is prevented.

  The locking steps 151a and 151b are formed to protrude from the inner surface of the second cutting groove 135a, and the locking piece 152 is formed to protrude from one surface of the second metal members 132a and 134a facing the second cutting groove 135a. As shown in FIG. 9, when the second metal members 132a and 134a are fitted through the second cutting groove 135a, the second metal members 132a and 134a are prevented from being separated from each other as shown in FIG. is doing.

  In order to simplify the manufacture of the second metal members 132a and 134b and to integrate them, the locking piece 152 is notched at one portion of the second metal members 132a and 134a and is inclined to one surface. It is preferably formed by lifting.

  In addition, it is preferable that the locking step 151 is formed to project in a pair for assembly of the second metal members 132a and 134a. For this reason, if the locking steps 151a and 151b are formed by only one locking step 151a, for example, the operator looks at the position of the one locking step 151a and the second metal member 132a. , 134a must be assembled, and therefore, the locking steps 151a, 151b are preferably formed so as to protrude in a pair.

  In addition, the cutting groove 135a forms an introduction portion 160 having a guide inclined surface 161 that is expanded outward to guide each other well, thereby facilitating assembly of the second metal members 132a and 134a. I have to.

  14 is an exploded perspective view showing a steel door of a third embodiment according to the present invention, FIG. 15 is an enlarged cross-sectional view according to the direction of line IV-IV in FIG. 14, and FIG. FIG. 17 is a partially enlarged sectional view showing a fitted state in FIG. 16, and FIG. 18 is a perspective view showing a developed state in FIG. FIG. 19 is a perspective view showing the folded state in FIG.

  As shown in the drawing, the steel door 200 according to the third embodiment of the present invention overlaps a pair of third steel plates 212a and 212b having a predetermined width to fix the third steel plates 212a and 212b therein. A door main body forming a space for receiving the third urethane foam 240a, 240b foamed in the air and an inner surface of the space between the third steel plates 212a, 212b, and a predetermined length made of a thin plate-like metal material. Are arranged in parallel on the inner surfaces of the third steel plates 212a and 212b, and are arranged around the large holes 238a and small holes around the large holes 238a at regular intervals along the longitudinal direction thereof. The third steel plates 212a and 212b are penetrated through the third urethane foams 240a and 240b which are perforated 238b and flow and harden along the large holes 238a and the small holes 238b. The third reinforcing members 230a and 230b made up of a large number of third metal members 232a and 234a fixed so as to form a body, and the third metal members 232a and 234a are alternately fixed only at a part between the adjacent ones. The connecting portion 235a forms a honeycomb structure that receives the third urethane foams 240a and 240b when deployed.

  The steel door 200 according to the third embodiment of the present invention is manufactured through the third reinforcing bodies 230a and 230b by performing the same manufacturing process as described in the steel door 10 according to the first embodiment of the present invention. Therefore, it has the same functions and effects as those derived from the steel door 10 of the first embodiment according to the present invention, and the detailed description thereof is the first embodiment according to the present invention. It replaces with description of the steel door 10 of a form.

  In this structure, the coupling part 235a may be formed through a fitting method for separating and assembling, a welding method through spot welding, or a bonding method through an adhesive.

Among these, the coupling part 235a having a fitting method for separation and assembly is fitted with fitting pieces 250a corresponding to the opposing surfaces F1 and F2 of the third metal members 232a and 234a as shown in the figure. This is achieved by forming each protrusion 250b. That is, the coupling part 235a having a fitting method is arranged such that when the third metal members 232a and 234a are arranged in parallel, the fitting pieces 250a and the fitting pieces 250a and the opposing surfaces F1 and F2 of the adjacent third metal members 232a and 234a are arranged. by forming so as to correspond each said fitting projection 2 50b sandwiched to be separated into fitting piece 250a, while the fitting protrusion 250b is sandwiched the fitting piece 250a, the during deployment third A third reinforcing body 230a having a honeycomb (Honeycomb) structure for receiving the urethane foams 240a and 240b is formed. The fitting pieces 250a and the fitting protrusions 250b may be alternately formed on any one of the opposing surfaces F1 and F2.

  The fitting piece 250a is formed by notching and lifting one part of the third metal members 232a and 234a, and then bending inwardly into a “┐” shape, and the fitting protrusion 250b is formed on the fitting piece 250a. And corresponding portions of the third metal members 232a and 234a are notched, and the portion between the notches is lifted so as to protrude.

  As shown in FIG. 18, the coupling portion 235a is formed by expanding the third metal members 232a and 234b around the coupling portion 235a to form the third reinforcing body 230a having a honeycomb (Honeycomb) structure. As shown in FIG. 19, the third reinforcing member 230a is received and transported by folding the third metal members 232a and 234b with their lengths so as to effectively reduce the volume. Make it easier.

  On the other hand, the shape of the through hole, the large hole, and the small hole forming the urethane foam passage in the first, second, and third embodiments according to the present invention does not impair the strength of the metal member that forms the reinforcing body. It will be clarified that any form can be modified.

The perspective view which cuts off and shows a part of conventional steel door. The perspective view according to the II line direction of FIG. FIG. 3 is an enlarged view of a portion A in the display of FIG. 2. The separation perspective view of the steel door of a 1st embodiment concerning the present invention. The expanded sectional view according to the II-II line direction of FIG. B partial enlarged view of the display of FIG. The isolation | separation perspective view which isolate | separates only a part of reinforcing body and shows the state before a fitting. The isolation | separation perspective view which shows the steel doors of 2nd Embodiment which concerns on this invention. The expanded sectional view according to the III-III line direction of FIG. The elements on larger scale which show the C section of the display of FIG. The isolation | separation perspective view which isolate | separates only a part of reinforcing body and shows the state before a fitting. The elements on larger scale which show D part of the display of FIG. The elements on larger scale which show a fitting state in FIG. The separation perspective view showing the steel door of a 3rd embodiment concerning the present invention. The expanded sectional view according to the IV-IV line direction of FIG. The separation perspective view which isolate | separates only a part of reinforcement body and shows the state before a coupling | bonding. The partial expanded sectional view which shows a fitting state in FIG. The perspective view which shows the state expand | deployed in FIG. The perspective view which shows the state folded in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 10, 100: Steel door 2a, 2b: Steel plate 3a, 3b: Reinforcement body 4a, 4b: Urethane foam 12a, 12b: 1st steel plate 30a, 30b: 1st reinforcement body 32a, 34a: 1st metal member 36a : 1st square groove 38a: 1st through-hole 40a, 40b: 1st urethane foam 112a, 112b: 2nd steel plate 130a, 130b: 2nd reinforcement body 132a, 134a: 2nd metal member 135a: 2nd cutting groove 136a: Second square groove 138a: second through hole 140a, 140b: second urethane foam

Claims (3)

Reinforcement assembly der to form a reinforcement of the honeycomb structure provided with urethane foam between the steel plate of the pair constituting the steel door is, and, a thin plate-like metal members with a predetermined length is a large number of sheets parallel arrangement, be joined by joints to the metal member adjacent to, the metal members to each other which are combined in said coupling portion, in fold song Gaité on opposite sides of the coupling portion What reinforcement assembly der for the honeycomb structure by expansion,
Each of the coupling parts is a fitting method using a fitting piece and a fitting protrusion to be fitted to the fitting piece,
Wherein each of the metallic member, the opposing surface to be a binding site of said metal member adjacent is provided so as to be alternately and on the other hand side and the other side at a predetermined interval in the longitudinal direction Rutotomoni, the opposite The coupling part is provided on the surface ;
A reinforcing body assembly, wherein the adjacent metal members are arranged side by side in the form of a flat plate in a state where the metal members are joined by the joint portion. The reinforcing body assembly according to claim 1 , wherein each of the metal members has a hole for allowing the foamed urethane foam to flow . A method for manufacturing a steel door, wherein a reinforcing member having a honeycomb structure is disposed with a foamed urethane foam between a pair of steel plates,
The reinforcing body assembly according to claim 1 or 2 is used as the reinforcing body, and the adjacent metal plates coupled at the coupling portion in the reinforcing body assembly are bent to the opposite side with the coupling portion interposed therebetween. A method for manufacturing a steel door, wherein the steel door is formed by the step of forming a honeycomb structure and then disposed between the pair of steel plates.

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