Simple assembly decorative door for pipe shaft

Abstract

This invention provides a simple, easy-to-assemble decorative door for pipe shafts in buildings and other structures, particularly one that is effective for installation on walls at appropriate locations inside buildings. [Solution] In a lightweight, thin door installed in a rectangular opening in the wall of a building, This is a simple, easy-to-assemble decorative door for a pipe shaft, which has frame members installed at the top and bottom of the opening, and a lightweight, thin door pivotally attached to the upper and lower frame members, and is fixed to the building's wall frame without welding, by attaching a device that can install the door's pivot axis and L-shaped or U-shaped fasteners, and by screwing thin, elongated metal frame plates to all the upper and lower frame surfaces to reinforce the opening, so that the lightweight, thin door matches the perimeter of the wall and has a decorative door surface with no gaps between the doors.

Description

Technical Field

[0001] The present invention relates to a door structure for a pipe shaft in a building or the like, particularly to a decorative door for a simple assembly pipe shaft that is effective for installation on a wall surface at an appropriate position inside a building.

Background Art

[0002] Recently, many high-rise buildings or high-rise apartment houses have been constructed, and equipment storage containers for equipment inspection openings of pipe shafts for managing water supply, drainage, hot water, gas, etc. are arranged on each floor. However, at present, these pipe shafts are compact, and there are few doors on the walls inside ordinary buildings. As a door structure for installing a door on the wall surface inside a building, an opening as an effective storage part for inspection equipment is provided at an appropriate position, and a door matching the periphery is installed in the opening, but it becomes a clear place for the pipe shaft and the inspection opening.

[0003] Generally, in a door structure, an opening as an entrance / exit is provided in a partition wall separating a living room and a closet, and a door is installed in the opening. A door frame is installed to reinforce the opening of the partition wall, and it is designed to be able to recognize the presence of the door at a glance. Since the presence of the door can be recognized at a glance, for example, a proposal has been made that the position of the entrance / exit can be known even if the lights in the living room are not brightly illuminated at night, and it is easy to enter and exit the closet (see Patent Document 1).

[0004] Furthermore, in a door structure in which a door can be easily installed so that reinforcing members such as a door frame for reinforcing the opening of the partition wall are not conspicuous, it includes an opening, a door, a reinforcing member, and a support means. The opening is rectangular and provided in the partition wall. The door is installed in the opening. The reinforcing member is disposed in the opening so as to extend horizontally along the circumferential direction of the opening to reinforce the opening. The support means rotatably supports the door on the reinforcing member at a position shifted from the reinforcing member in a first direction X1. The first direction X1 is one of two directions perpendicular to the wall surface of the partition wall, and a door device has been proposed (see Patent Document 2).

[0005] Furthermore, in order to make the inspection panel of the sliding interlocking door smaller and lighter, a device has been proposed for a sliding interlocking door that includes left and right doors that open in a sliding manner, left and right door pockets in which the left and right doors are stored, and a sliding interlocking mechanism located above the space between the left and right door pockets for interlocking the opening and closing of the left and right doors, wherein the inspection parts of the sliding interlocking mechanism are grouped together above the space between the left and right ends of the left and right doors when they are closed, and an inspection opening for this inspection part and an inspection panel for opening and closing the inspection opening are provided above the space between the left and right ends of the left and right doors when they are closed (see Patent Document 3).

[0006] In order to construct a shutter case that houses a separate winding drum in a highly versatile and aesthetically pleasing manner, a method has been proposed in which the front and bottom panels of the shutter case are formed by connecting long first and second long plates in the width direction, and by appropriately combining these first and second long plates, the dimensions of the front and bottom panels in the width direction are configured to match the size of the shutter case (see Patent Document 4).

[0007] Furthermore, there is a water heater mounting structure and a bracket for the water heater used therein that can appropriately raise the mounting height of the water heater to a higher level than conventional methods using a pipe shaft with a simple configuration. The proposed water heater mounting structure comprises a water heater and a bracket for the water heater that allows the water heater to be fixed to the frame-shaped part with the water heater positioned inside the frame-shaped part. In this structure, the area of ​​the upper plate portion of the frame-shaped part of the bracket is located higher than the lower surface of the front portion than the area behind the front portion, and a space is formed below the upper plate portion that is higher than the lower surface of the front portion, with the upper part of the water heater entering into the space (see Patent Document 5).

[0008] As described above, various inspection hatches have been proposed. The installation of equipment inspection hatches in pipe shafts that manage water supply, drainage, hot water, and gas in high-rise buildings or apartment complexes is complex, with equipment storage units installed on each floor. Furthermore, there are no innovative new technologies in the pipe shafts; they are merely arrangements of conventional designs. In the energy boxes and storage units, there are no improvements to the opening and closing systems of pipe shaft doors with cleverly designed upper and lower frame rails, and improvements are seen more for aesthetic reasons than for functionality. [Prior art documents] [Patent Documents]

[0009] [Patent Document 1] Japanese Patent Publication No. 2020-112007 [Patent Document 2] Japanese Patent Publication No. 2022-187744 [Patent Document 3] Japanese Patent Publication No. 2003-172072 [Patent Document 4] Japanese Patent Publication No. 2007-224689 [Patent Document 5] Japanese Patent Publication No. 2017-211135 [Overview of the Initiative] [Problems that the invention aims to solve]

[0010] However, when installing storage areas for equipment facing corridors within train stations or office buildings, there is no need to inform non-personnel of the storage area's existence; in fact, it is preferable that non-personnel remain unaware of its existence, and the doors should be installed in a way that is as inconspicuous as possible. Similarly, when designing corridors within office buildings to create a sense of luxury, it is preferable that the doors to storage areas in pipework spaces be installed in a way that is as inconspicuous as possible. It is desirable that the doors to storage areas in various types of apartment buildings, including utility and energy-related complexes in high-rise residential buildings, be installed in inconspicuous locations and blend into the surrounding atmosphere.

[0011] The present invention has been made in view of the above problems, and its purpose is to provide a door structure that allows a door to be easily installed in a storage area so that the reinforcing members that reinforce the opening in the partition wall are not conspicuous when installing inspection openings for utility and energy-related piping in the pipeshed space of a multi-unit building. For example, this could involve "specifying the material and shape of the frame plate for door mounting," "specifying the shape of the door's pivot axis," "applying a decorative sheet with a similar pattern to the surrounding area to the door surface to create a sense of unity with the surroundings," and "using special hardware to prevent handles, locks, etc., from protruding from the door surface using special hinges."

[0012] Generally, indoor inspection doors (pipe shaft doors: PS doors) are made of steel plate and have a flush design on one side. Because thin steel plates are used, it is common to insert a reinforcing frame in the vertical center of the door. The components of the pipe shaft door are typically fixed by welding or screwsing the four-sided frame to the building structure or wall steel frame before finishing with boards or other materials.

[0013] In typical inspection hatch openings, to reduce door weight, the doors are flush on one side and opened and closed by a pivot hinge or hinge, with the lock attached to the vertical frame. This also hinders the aesthetic trend of indoor pipe shaft doors that match the surrounding wall surface. Furthermore, in order to install pipe shaft doors compactly, they are expected to consist only of upper and lower frame members.

[0014] Because there are no vertical frame members, it is not possible to install locks and hinges for opening and closing the door as usual. Instead, the door is opened and closed, as well as the lock and handle, are suspended using pivot hinges attached to the top and bottom frame members. While typical pipe shaft doors often employ concealed hinges, this does not seem to result in a sufficiently decorative door. [Means for solving the problem]

[0015] In a lightweight and thin door installed in a rectangular opening on the wall surface of a building, An upper rail frame is provided for the opening on the wall frame of the building, and in order to fix it to the upper rail frame without welding, Lightweight, thin door The rotating shaft of Snap-in rotating bearing A metal elongated angle frame-shaped plate material with via is installed on the upper rail frame surface with an L-shaped fastener, and the lightweight and thin door The surface is matched to the surrounding pattern of the wall, and the gap between the surface and the wall is eliminated to form a surface with enhanced decorativeness. Rotating shaft hinges are installed at the upper and lower parts of the lightweight and thin door, and a lock and a handle are built in on the door tip side of opening and closing, Rotation axis so that Lightweight and thin the door table surface and the wall surface are integrated.

[0016] The metal elongated angle frame-shaped plate material is screwed to the upper rail frame surface and the floor surface of the opening to fix the rectangular shape of the opening in a stable state. A bearing support plate part is provided at the shaft side position of the upper metal elongated angle frame-shaped plate material, and A metal elongated rectangular frame-shaped plate is provided a rotating bearing tool is fixed to the bearing support plate part. Further, a rotating bearing tool attached to the surface of the metal elongated angle frame-shaped plate material is partially extended, and for the assembly of the metal elongated angle frame-shaped plate material to the opening Lightweight, thin door where Lightweight, thin door of Rotation axis is fitted into the lower rotating bearing tool, and then A handle-equipped rotating shaft that allows the rotating shaft to be moved up and down is installed at the lower position. .

[0017] In the assembly of the lightweight and thin door manufactured according to the rectangular opening, rotating shaft hinges, a lock, and a handle are built in at the upper and lower parts of the lightweight and thin door. A metal elongated angle frame-shaped plate material is screwed to the Upper rail frame of the opening with an L-shaped fastener. Further, a rotating bearing tool is fixed to Bearing support plate section provided on the metal elongated angle frame-shaped plate material. For the Rotation axis fixing, Rotary bearing with different shapes at the upper and lower parts are provided. The lightweight and thin door adjusts the height and left-right orientation of the Rotation axis at the lower part and then fits it into the Rotary bearing at the lower part. After that, Rotation axis is Upper rotating bearing inserted into and attached to.

[0018] In a rectangular opening on the wall surface of a building To be installed The lightweight, thin doors are available as single or double doors, or in combination with fixed panels. The surface of the lightweight, thin doors is coated with baked paint, and decorative sheets such as reinforced paper, resin sheets, or cloth are applied to the surface, each displaying a solid color, wood grain pattern, or inorganic pattern.

[0019] To enhance the decorative surface appearance of the lightweight, thin door, a lightweight, thin door manufactured to fit a rectangular opening is installed. The lightweight, thin door incorporates a rotating shaft, lock, and handle. A slender rectangular metal frame plate is attached to the upper surface of the opening by screwing or inserting it. Rotating shaft bearings are further fixed to the upper and lower parts. Different rotating shaft bearings are provided at the top and bottom to fix the rotating shaft. The lower rotating shaft of the lightweight, thin door is inserted into the lower rotating shaft bearing while adjusting its height and left / right orientation. The rotating shaft is then attached to the upper rotating shaft bearing by adjusting the upper handle. A wire stopper for adjusting the degree of opening and closing is attached to the hinge end of the lightweight, thin door.

[0020] Lightweight, thin doors are made of steel, and when installing them in an opening, they are fixed by insert or screw fastening, rather than welding. The rotating shaft itself has a special structure, and various types of other parts and hardware can be used. The rotating shaft material is steel, and the bearing material is generally made of steel or resin for machine parts, but steel is preferred. [Effects of the Invention]

[0021] According to the inspection hatch door structure of the present invention, doors to storage areas in pipe shaft spaces are installed in a way that is as inconspicuous as possible, including doors to storage areas in utility and energy-related assemblies in various apartment buildings and high-rise buildings, blending in with the surrounding atmosphere in inconspicuous locations. Reinforcing frame materials such as door frames that reinforce the opening in the partition wall can be easily installed without being conspicuous. The effects of the invention include the fact that installation can be done at any time, even after interior work has been completed. Furthermore, it is lightweight and easy to install, easy to operate and can be installed in a short time, and is easily decorative and uniform to the wall surface. The opening and closing of the lightweight, thin door is smooth, and the lightweight, thin door can be matched to the surrounding wall surface. Wall surface The gap between the door and the surrounding area has been minimized, and the surface has been enhanced with decorative materials that match the surrounding environment. [Brief explanation of the drawing]

[0022] [Figure 1] This figure shows a door according to an embodiment of a decorative door for a simply assembled pipe shaft. [Figure 2] This is a structural diagram showing the appearance of a decorative door for a simple assembly pipe shaft when attached to the upper and lower surfaces of the opening. [Figure 3] This is a perspective view showing the metal elongated rectangular frame plate material and lightweight, thin door on the upper and lower surfaces of the opening of a decorative door for a simple assembly pipe shaft. [Figure 4] This is a cross-sectional view showing the connection between the top of the opening and the door in a decorative door for a simple assembly pipe shaft. [Figure 5] This is a perspective view showing the engagement between the rotating bearing on the top surface and the rotating shaft inside the door of a decorative door for a simple assembly pipe shaft. [Figure 6] This is a cross-sectional view showing the connection between the lower part of the opening and the door in a decorative door for a simple assembly pipe shaft. [Figure 7] This is a perspective view showing the engagement between the rotating bearing on the bottom of a decorative door for a simple assembly pipe shaft and the rotating shaft inside the door. [Figure 8]This is a cross-sectional view of a lightweight, thin door structure with a decorative door for a simple assembly pipe shaft installed in the opening. [Modes for carrying out the invention]

[0023] The following describes in detail, with reference to the drawings, a door structure according to an embodiment of the present invention. While the embodiments described below are preferred examples for carrying out the present invention and therefore have various technical limitations, the present invention is not limited to these embodiments unless specifically stated in the following description to limit the invention. [Examples]

[0024] The lightweight, thin doors are made of 0.8mm thick steel. When installing the lightweight, thin doors in the opening, welding is not used for fixing; instead, they are fixed by inserting and screwing in a dry joint. The rotating shaft hinge itself has a special structure, and various types of other parts and hardware are used. The rotating shaft material and its bearing material are made of 4.5 or 6mm thick steel.

[0025] rectangular opening 2 Lightweight, thin door 3 The manufacturing and installation process involves a lightweight, thin door. 3 In the manufacturing process, the surface material with notches and holes for the parts is bent and then the top and bottom are... Door reinforcement horizontal frame 20 and Door reinforcement vertical frame 19 By combining these, a lightweight, thin door 3 After spot welding or riveting the parts together, a rotating shaft is installed inside the door. 7·8 By attaching hardware such as locks and handles, a lightweight, thin door can be made. 3 To make a rectangle shape opening 2 For installation, a metal elongated rectangular frame-shaped plate is placed on the upper surface of the opening. 4-1 Attach it to the metal elongated rectangular frame plate as shown in Figure 2. 4―1 bearing support plate section 14 Install a lightweight, thin door. 3 Lower rotation axis 8 Rotating bearing 6 Insert into the rotating shaft7 upper rotating bearing 5 Install it while adjusting the height, and finally the door on the hanging base Wire stopper for adjusting the degree of opening and closing 21 It was manufactured and assembled by attaching it.

[0026] Rectangular openings in the walls of buildings 2 Lightweight, thin door to be installed 3 In, Wall aggregates for buildings 12 upper rail frame 10 The upper rail frame is provided for the opening. 10 To fix it without welding, Lightweight and thin door 3 axis of rotation 7 of Can be fitted in Rotary bearing 5 A metal elongated rectangular frame-shaped plate with the installation 4-1 upper rail frame surface 10 L-shaped fastener 9 of via It is screw-fastened and consists of two lightweight, thin doors. 3 The area around the wall pattern A simple, easy-to-assemble decorative door for a pipe shaft, with a decorative sheet that matches the surroundings, and made of a metal, elongated rectangular frame. 4-1 is a rectangular opening 2 Upper rail frame 10 L-shaped fastener 9 The metal elongated rectangular frame-shaped plate is screwed in to stabilize the rectangular shape of the opening, and the 4―1 Rotating bearing on the surface 5 of Bearing support plate section 14 Equipped with a rotating bearing 5 Rotation axis in the center 7 of Insert And further, the upper rail frame 10 A metal elongated rectangular frame-shaped plate 4-1 L-shaped fastener that can be connected to 9 It was made so that it could be screwed in.

[0027] Rectangular openings in the walls of buildings 2 Lightweight, thin door to be installed 3 In the opening, the upper rail frame 10 The upper rail frame is provided10 A metal elongated rectangular frame-shaped plate 4-1 The upper rail frame is fixed in place as shown in Figure 2. 10 To fix it in place without welding, the rotation axis of the door Receiving device 5 Can be installed Bearing support plate section 14 and L-shaped fastener 9 A metal elongated rectangular frame plate can be attached to reinforce the opening. 4-1 Screw it into the lightweight, thin door 3 The area around the wall pattern It matches, Lightweight and thin door 3 and Wall surface I created a simple, collapsible decorative door for a pipe shaft, approximately 600mm wide and 2000mm high, with a seamless, decorative surface.

[0028] As shown in Figures 2 and 3, a metal elongated rectangular frame-shaped plate 4 The upper frame of the opening is made of steel plate material with a thickness of 1-3 mm. 10 L-shaped fastener via 9 Screw it in, the rectangular shape of the opening 2 Along with stable shape fixation, as shown in Figure 4, the metal elongated rectangular frame-shaped plate material 4-1 Rotating bearing located on the axial side of the surface 5 Bearing support plate section equipped with 14 It is equipped with, as shown in Figure 5 Top Rotary bearing 5 of Bearing support plate section 14 It is fixed in place, and furthermore, the upper rail frame 10 L-shaped fastener that can be attached 9 It was screwed in. L-shaped fastener 9 As shown in Figure 4, wall aggregate 12 The level position and tilt were adjusted.

[0029] Rotary bearing 5·6 These are upper and lower metal elongated rectangular frame-shaped plates. 4 The installation differs depending on the wall surface that forms the opening and Lightweight and thin The metal rectangular frame plate at the opening is flush with the door surface, eliminating any gaps. 4 Installation and metal elongated rectangular frame plate 4 Rotary bearing to be mounted on the surface 5A protruding section of a partially stretched profile is provided, and as shown in Figures 4 and 5, a rotating bearing is provided. 5 axis of rotation 7 The mounting is done using a metal elongated rectangular frame-shaped plate. 4 Located in the extended section, the door's rotation axis is as shown in Figures 6 and 7 during the door installation procedure. 8 A metal elongated rectangular frame-shaped plate 4-2 Rotary bearing 6 It is then fitted into the upper metal elongated rectangular frame-shaped plate shown in Figure 5. 4―1 Rotary bearing 5 A rotating shaft with a handle that allows the shaft to be raised and lowered. 7a Upper rotating bearing with 5 I attached it to it.

[0030] Rectangular openings in the walls of buildings 2 Lightweight, thin door that fits into 3 It is a double door, and the surface of the door is reinforced paper exhibiting a wood grain pattern, which is a decorative sheet, and is attached by Lightweight and thin Doors and walls and The gaps were eliminated, and the lock and handle were made to have a uniform surface, eliminating any protruding parts. As shown in Figures 1 and 8, it is a lightweight, thin door. 3 Rotation axis at the top and bottom 7·8 The lock and handle on the door's opening and closing side were incorporated into the design.

[0031] Rectangular opening 2 Lightweight, thin door manufactured to match 3 The installation involves attaching a pivot to the door. 7·8 Lightweight, thin door with hardware such as locks attached. 3 When installing it in an opening, a metal elongated rectangular frame-shaped plate material should be placed on the upper surface of the opening. 4 It is attached by screwing or inserting, and further the upper and lower metal elongated rectangular frame-shaped plate surfaces 4 bearing support plate section 13·14 The bearing support plate section is fixed in place, with different parts at the top and bottom. 13·14 Rotary bearing located 5·6 A lightweight, thin door is provided. 3 The lower axis of rotation 8 lower rotating bearing 6After inserting it, the upper handle-equipped rotating shaft 7a upper rotating bearing 5 Install it while adjusting the height, and use a lightweight, thin door. 3 A wire stopper for adjusting the degree of opening and closing is located at the top of the hanging point. 21 It was simply manufactured and assembled by attachment, maintaining the decorative surface quality of the door. [Examples]

[0032] Similar to Example 1, a rectangular opening 2 Lightweight, thin door 3 The manufacturing and installation process involves a lightweight, thin door. 3 In the manufacturing process, the surface material with notches and holes for the parts is bent and then the top and bottom are... Door reinforcement horizontal frame 20 and Door reinforcement vertical frame 19 By combining these, a lightweight, thin door 3 After spot welding or riveting the parts together, a rotating shaft is installed inside the door. 7·8 We manufactured a lightweight, thin door by attaching hardware such as locks and handles, and by changing its shape, dimensions, and surface decoration. Rectangular opening 2 For installation, a metal elongated rectangular frame-shaped plate is placed on the upper surface of the opening. 4-1 Attach it, and further, a metal elongated rectangular frame-shaped plate 4―1 bearing support plate section 14 Install a lightweight, thin door. 3 Lower rotation axis 8 Rotating bearing 6 Insert it into the rotating shaft 7 upper rotating bearing 5 Install it while adjusting the height, and finally attach a wire stopper for adjusting the degree of opening and closing to the edge of the door. 21 It was manufactured and assembled by attaching it.

[0033] Rectangular openings in the walls of buildings 2 Lightweight, thin door to be installed 3 In this context, wall aggregate 12 upper rail frame 10 The upper rail frame is provided for the opening. 10 A metal elongated rectangular frame-shaped plate 4-1 The rotation axis of the door is fixed in place. 7of Inlay Rotary bearings that can be made 5 A metal elongated rectangular frame-shaped plate with the installation 4-1 upper rail frame 10 L-shaped fastener via 9 It is screw-fastened and consists of two lightweight, thin doors. 3 The area around the wall pattern A decorative sheet that matches the style was applied, and a wire stopper was added to adjust the degree of door opening and closing. 21 It was a simple, decorative door for a pipe shaft, measuring 900mm wide and 2400mm high, with the fittings attached.

[0034] Metal rectangular frame plate material 4 The upper frame of the opening is made of aluminum extruded material with a thickness of 1-3 mm. 10 L-shaped fastener 9 By screwing it in, the rectangular shape of the opening is stabilized, and the elongated metal frame-shaped plate material 4 On its surface, a bearing support plate portion is provided at the axial side position. 14 The bearing support plate section 14 Rotary bearing 5 It was fixed in place. Furthermore, the upper rail frame 10 L-shaped fastener that can be attached 9 It was made so that it could be screwed in.

[0035] Rotary bearing 5·6 These are upper and lower metal elongated rectangular frame-shaped plates. 4 The installation differs depending on the wall surface that forms the opening and Lightweight, thin door panel The metal elongated rectangular frame plate at the opening is designed to be flush with the surface and eliminate any gaps. 4 Installation and metal elongated rectangular frame plate 4 Rotary bearing to be mounted on the surface 5 Partially stretched, rotating bearing 5 axis of rotation 7 The mounting is done using a metal elongated rectangular frame-shaped plate. 4-1 It is located outside, and the door assembly procedure includes the door's pivot point. 8 The lower metal elongated rectangular frame plate 4-2 Rotary bearing 6 It is fitted into the upper metal elongated rectangular frame-shaped plate. 4-1 Rotary bearing 5A rotating shaft with a handle that allows the shaft to be raised and lowered. 7a Upper rotation axis with 7 I attached it.

[0036] Rectangular openings in the walls of buildings 2 Lightweight, thin door that fits into 3 This is a single double door, and the surface of the door is covered with a decorative sheet of plain-colored reinforced paper, which is attached by Lightweight and thin door surface The gaps between the door and the wall are eliminated, the lock and handle have a uniform surface finish, and there are no protruding parts, resulting in a lightweight, thin door. 3 Rotation axis at the top and bottom 7·8 and rotating bearing 5·6 The lock and handle on the door's opening and closing side are built-in.

[0037] rectangular opening 2 Lightweight, thin door manufactured to match 3 Installation is done on lightweight, thin doors. 3 After riveting the parts together, Lightweight and thin Rotating axis in the door 7·8 Lightweight, thin door with lock and handle hardware attached. 3 When installing it in an opening, a metal elongated rectangular frame-shaped plate material should be placed on the upper surface of the opening. 4-1 Attach it, and further, a metal elongated rectangular frame-shaped plate 4-1 bearing support plate section 14 The bearing support plate section is fixed in place, with different parts at the top and bottom. 13·14 Rotary bearing located 5·6 A lightweight, thin door is provided. 3 The lower axis of rotation 8 lower rotating bearing 6 After inserting it, the upper handle-equipped adjustable rotating shaft 7a upper rotating bearing 5 Then, I installed it while adjusting the height and orientation. Finally, the lightweight, thin door. 3 A wire stopper for adjusting the degree of opening and closing is attached to the edge of the door. 21 It was simply manufactured and assembled by attachment, maintaining the decorative surface quality of the door.

[0038] Lightweight, thin door 3It is made of steel and has a lightweight, thin door at the opening. 3 When installing, welding is not used for fixation; instead, it is fixed by inserting and screwing in a dry joint. The rotating shaft hinge itself has a special structure, and various types of other parts and hardware can be used. The rotating shaft material is made of steel, and its bearing material is made of steel. [Examples]

[0039] Rectangular openings in the walls of buildings 2 Lightweight, thin door to be installed 3 In, At the top of the opening above frame 10 The upper rail frame is provided 10 A metal elongated rectangular frame-shaped plate 4―1 Secure it in place, upper rail frame 10 To fix it without welding, Lightweight and thin door 3 axis of rotation Rotary bearing 5 into which 7 can be fitted and L-shaped fastener 9 A metal elongated rectangular frame plate can be attached to reinforce the opening. 4-1 upper rail frame 10 It is screwed in, and one lightweight, thin door fits around the wall. pattern It was a simple, decorative door for a pipe shaft, with a decorative sheet that matched the surroundings.

[0040] Metal rectangular frame plate material 4 The upper frame of the opening is made of 1.6mm thick steel-based metal sheet. 10 L-shaped fastener via 9 Screw it in, the rectangular shape of the opening 2 Along with stabilization, the aforementioned elongated rectangular metal frame plate 4―1 Rotating bearing located on the axial side of the surface 5 Bearing support plate section equipped with 14 The bearing support plate section 14 Rotary bearing 5 It is fixed in place, and furthermore, the upper rail frame 10 L-shaped fastener that can be attached 9 It was made so that it could be screwed in.

[0041] Bearing support plate section 13·14 The upper and lower metal elongated rectangular frame-shaped plates 4―1·4-2 The installation differs depending on the wall surface that forms the opening and Lightweight and thin The metal rectangular frame plate at the opening is flush with the door surface, eliminating any gaps. 4 Installation and metal elongated rectangular frame plate 4 Rotary bearing to be mounted on the surface 5 axis of rotation 7 The mounting is done using a metal elongated rectangular frame-shaped plate. 4-1 Located outside, in the door assembly procedure, the door's pivot point 8 The lower metal elongated rectangular frame-shaped plate 4-2 Rotary bearing 6 It is fitted into the upper metal elongated rectangular frame-shaped plate. 4-1 Rotary bearing 5 A rotating shaft with a handle that allows the shaft to be raised and lowered. 7a Upper rotating bearing with 6 I attached it to it.

[0042] Rectangular openings in the walls of buildings 2 Lightweight, thin door that fits into 3 It is either a single hinged door or two double hinged doors, and the surface of the door is covered with a decorative sheet of inorganic patterned reinforced paper or cloth, which is attached to the opening. Lightweight and thin door surface The door and the wall surface, as well as the lock and handle, are made to have a uniform surface, eliminating any protruding parts, resulting in a lightweight, thin door. 3 Upper and lower rotation axes 7·8 It also incorporates a lock and handle on the door's opening and closing side.

[0043] rectangular opening 2 Lightweight, thin door manufactured to match 3 Installation involves attaching the rotating shafts 7 and 8, locks, and handle hardware to the door. 3 When installing it in an opening, a metal elongated rectangular frame-shaped plate material should be placed on the upper surface of the opening. 4―1 Attach it, and further, a metal elongated rectangular frame-shaped plate 4―1 bearing support plate section 14 It is fixed to the upper and lower parts, and the bearing support plate section is different. 13·14Rotary bearing 5·6 A lightweight, thin door is provided. 3 The lower axis of rotation 8 lower rotating bearing 6 After inserting it, the upper handle-equipped rotating shaft 7a upper rotating bearing 5 Then, after installing it while adjusting the height and orientation, finally, the lightweight, thin door... 3 of on the hanging base The door was simply manufactured and assembled by attaching a wire stopper 21 for adjusting the degree of opening and closing, thus maintaining the decorative surface quality of the door.

[0044] Lightweight, thin door 3 The base is steel, and the opening has a lightweight, thin door. 3 When installing, welding is not used for fixing; instead, a dry joint using screws is employed. The rotating shaft hinge itself has a special structure, and various types of other parts and hardware can be used. The rotating shaft material is made of steel, and an 8mm diameter steel rod was used for the shaft. [Explanation of symbols]

[0045] 1. Wall surfaces (ceiling surface 1a, floor finish surface 1b) 2. Rectangular opening 3. Lightweight, slim doors (left door 3-1, right door 3-2) 4. Metal rectangular frame plate material (upper 4-1, lower 4-2) 5. Upper rotating bearing 6. Lower rotating bearing 7. Top Rotation axis ( Rotation axis Handle 7a, rotation axis 7b) 8. Lower part Rotation axis ( Rotation axis (Threaded portion 8a, rotating shaft 8b) 9. L-shaped fastener 10. Upper rail frame 11. L-shaped fastener for shaft-side reinforcement 12. Wall aggregate 13. Lower bearing support plate section 14. Upper bearing support plate section 15. Square washer 16. Automatic locking door handle 17. Drop-in for inspection hatch 18. Drop-in receiver for inspection hatch 19. Door reinforcement vertical frame 20. Door reinforcement horizontal frame 21. Wire stopper for adjusting the degree of opening and closing

Claims

1. In a lightweight, thin door installed in a rectangular opening in the wall of a building, A decorative door for a pipe shaft, characterized by having frame members at the top and bottom of the opening, a lightweight, thin door pivotally attached to the upper and lower frame members, a device for installing the door's pivot axis and L-shaped or U-shaped fasteners for attaching to the building's wall frame without welding, a thin, elongated metal frame plate screwed to all the upper and lower frame surfaces to reinforce the opening, and a decorative door surface that matches the perimeter of the wall and has no gaps between the doors.

2. The elongated rectangular metal frame plate is characterized in that the rectangular frame plate is screwed to the upper and lower frame surfaces of the opening using steel or aluminum extruded profiles, thereby stably fixing the rectangular shape of the opening, and the surface of the elongated rectangular metal frame plate is equipped with a mold for attaching a bearing support plate, which has a support plate portion at the axis side position, with a rotating shaft hinge of a rotating bearing fixed in the center of the support plate portion, and further, L-shaped or U-shaped fasteners that can be joined to wall frame material can be screwed along the frame surface, as described in claim 1.

3. The mounting form for the bearing support plate section having a rotating bearing support plate differs in the installation of the upper and lower rail frames, and the wall surface forming the opening and the door surface are on the same plane, so as to eliminate the gap space, a metal elongated rectangular frame-shaped plate is attached to the opening, and the rotating bearing support plate on the upper rail surface attached to the surface of the metal elongated rectangular frame-shaped plate is partially extended, the rotating shaft hinge is attached to the extended part of the upper rail frame, and in the door assembly procedure the rotating shaft of the door is fitted into the rotating bearing of the lower rail frame, and then the upper rotating shaft having an adjustable handle rotating shaft is attached to the rotating bearing of the upper rail frame, characterized in that the simple assembly decorative door for pipe shafts according to claim 1 or 2.

4. A lightweight, thin door fitted into a rectangular opening in the wall of a building, comprising a single-leaf door, a double-leaf door, or a combination including a fixed panel, wherein the surface of the door is coated with baked paint and decorative sheets such as reinforced paper, resin sheets, or cloth, which exhibit a plain color, wood grain pattern, or inorganic pattern, to create a uniform surface at the boundary of the opening and the lock and handle, so as to have no protruding parts, and the lightweight, thin door has a rotating shaft and rotating bearing plate at the upper and lower parts on the rotating shaft hinge side, and a lock and handle on the door edge side for opening and closing, so as to integrate the door surface and the wall surface, as described in claim 1 or claim 2.

5. The installation of a lightweight, thin door that has been adjusted for a rectangular opening is characterized by the following: the lightweight, thin door, which has metal fittings such as a rotating shaft hinge and a lock installed inside the door, is attached to the upper surface of the opening by screwing or inserting a metal elongated rectangular frame plate; rotating shaft support plates are further fixed to the upper and lower frame surfaces; different rotating shaft support plates are provided at the top and bottom for fixing the rotating shaft hinge; the lower rotating shaft of the lightweight, thin door is inserted into the lower rotating shaft support plate; the upper adjustable rotating shaft with a handle is attached to the upper rotating shaft support plate while adjusting the height and left and right orientation; and a wire stopper for adjusting the degree of opening and closing is attached to the hinge end of the lightweight, thin door, thereby maintaining the decorative surface appearance of the door, as described in claim 1 or claim 2.

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