KR102950057B1 - Steel lighting frame for lighting and its manufacturing method - Google Patents

Abstract

The present invention relates to a steel lighting frame for a lighting fixture and a method for manufacturing the same, wherein the frame of the lighting fixture is formed by dividing it into an inner frame and an outer frame using a relatively thin colored steel plate, and the inner and outer frames are combined into one, thereby maintaining sufficient bending strength and torsional strength while keeping the weight low, so that the appearance of the lighting fixture itself is aesthetic, manufacturing costs can be reduced, and workability during manufacturing can be significantly improved, and in particular, mass production and maintenance can be facilitated.
The steel lighting frame for a lighting fixture according to the present invention comprises a known lighting fixture having a square frame shape (1000), a light-transmitting plate (2000), a light-transmitting plate and printed circuit board fixing device (3000), a cover plate (4000), and a printed circuit board for lighting (5000), wherein the frame (1000) is formed into an outer frame (1100) and an inner frame (1200) formed using a colored steel plate, and the inner frame (1200) is integrally fixedly installed on the inner side of the outer frame (1100).

Description

Steel lighting frame for lighting and its manufacturing method

The present invention relates to an iron lighting frame for a lighting fixture and a method for manufacturing the same. More specifically, the invention relates to an iron lighting frame for a lighting fixture and a method for manufacturing the same, wherein the frame of the lighting fixture is formed by dividing it into an inner frame and an outer frame using a relatively thin colored steel plate, and the inner and outer frames are combined into one, thereby maintaining sufficient bending strength and torsional strength while keeping the weight low, so that the appearance of the lighting fixture itself is aesthetic, manufacturing costs can be reduced, and workability during manufacturing can be significantly improved, and in particular, mass production and maintenance can be facilitated.

So-called ceiling lights, which are commonly used as indoor lighting fixtures and consist of a box-shaped case installed by attaching or embedding it into the ceiling and installing a light source such as a fluorescent lamp inside the case, are widely used.

Ceiling lights are sometimes provided with the interior side of the case open, but there are also cases where a light diffuser or a protective plate is installed to protect the light source for soft interior lighting.

Recently, lighting fixtures using LEDs (Light Emitting Diodes) have been attracting attention. LED lighting devices utilize multiple LEDs as a light source and offer advantages such as a compact size, long lifespan, high efficiency, and fast response compared to light sources like incandescent bulbs and halogen lamps.

Among these LED lights, those requiring directionality utilize a lens unit and a reflective element to give the light emitted from the LED element a specific directionality so that it is directed to a desired illumination area, whereas LED lights that do not require directionality generally use a diffuser plate to scatter light. A typical example is a flat-panel LED light, and such LED lights necessarily require a frame to support the diffuser plate.

However, most conventional LED lighting frames are extruded using materials such as aluminum, which presents the problem of a complex manufacturing process and high manufacturing costs.

Korean Registered Patent Publication No. 10-1241041 (March 4, 2013) Korean Patent Publication No. 10-1624499 (May 20, 2016) Korean Utility Model Publication No. 20-0494812 (December 28, 2021) Korean Registered Utility Model Publication No. 20-0495418 (May 13, 2022)

The present invention was devised to solve the various problems of the prior art, and aims to provide a steel lighting frame for a lighting fixture and a method for manufacturing the same, wherein the frame of the lighting fixture is formed by dividing it into an inner frame and an outer frame using a relatively thin colored steel plate, and the inner frame and the outer frame are combined into one so that the weight is reduced while sufficiently maintaining bending strength and torsional strength, thereby making the appearance of the lighting fixture itself aesthetic, reducing manufacturing costs, significantly improving workability during manufacturing, and facilitating mass production and maintenance.

Other detailed objectives of the present invention will be obvious to those skilled in the art through the specific details described below.

A steel lighting frame to which an embodiment of the present invention is applied to achieve the above-mentioned purpose comprises: a frame having a square frame shape; a light-transmitting plate seated on the inner surface of the frame; a light-transmitting plate and printed circuit board fixing device for fixing the light-transmitting plate and the printed circuit board for lighting to the inner surface of the frame; and a printed circuit board for lighting having a form in which a plurality of LEDs and LED driving components are mounted and fixedly installed on the ceiling surface of the light-transmitting plate and printed circuit board fixing device.

The above frame is,

An outer frame having an outer vertical plate and an outer horizontal plate formed by bending them into an "L" shape using a colored steel plate, wherein an inner frame fixing piece is integrally bent inward from the ends of the outer vertical plate and the outer horizontal plate; and

An inner vertical plate and a first inner horizontal plate are formed by being bent into an "L" shape, wherein the height of the inner vertical plate corresponds to the height of the outer vertical plate of the outer frame, and an inner inclined plate inclined at a predetermined angle is formed consecutively from the end of the first inner horizontal plate toward the downward portion, and a second inner horizontal plate on which the light-transmitting plate is seated is integrally extended from the end of the inner inclined plate in a horizontal direction, and the total width of the first inner horizontal plate, the inner inclined plate, and the second inner horizontal plate is the same as the width of the outer horizontal plate of the outer frame, and while positioned inside the outer frame, the upper portion of the inner vertical plate and the end portion of the second inner horizontal plate are integrally fixed by the inner frame fixing piece bent into the outer frame, and a screw receiving space for fixing the light-transmitting plate and printed circuit board fixing device is formed between the bottom surface of the first inner horizontal plate and the top surface of the outer horizontal plate of the outer frame. Includes a frame.

In addition, the present invention may further include a cover plate that is detachably fixed to the upper opening of the frame.

In addition, the outer horizontal plate of the above outer frame is,

It is characterized by comprising: a first outer horizontal plate formed by bending in a horizontal direction at the lower end of the outer vertical plate; an outer inclined plate formed at a predetermined angle toward the lower end from the end of the first outer horizontal plate; and a second outer horizontal plate formed by extending continuously in a horizontal direction from the end of the outer inclined plate, with its upper surface in close contact with the lower surface of the second inner horizontal plate of the inner frame.

Additionally, the first inner horizontal plate of the inner frame has a "U" shaped cross-section in the longitudinal direction and includes a screw coupling groove integrally formed by bending, allowing a screw that fixes the light-transmitting plate and the printed circuit board fixing member to pass through and be coupled.

In addition, the light-transmitting plate support projection, having a cross-sectional shape of "∩" in the longitudinal direction, is further formed by integrally bending it on the second inner horizontal plate of the inner frame.

Meanwhile, in a method for manufacturing a steel lighting frame for a lighting fixture having a configuration in which an inner frame is integrally combined with an outer frame, the method comprises the steps of: cutting a colored steel plate to have a predetermined length and width to form an outer frame material; bending and forming an inner frame fixing piece having a predetermined height in the vertical direction at both ends of the outer frame material in the longitudinal direction; forming an outer vertical plate and an outer vertical plate by bending the outer frame material in an L-shape along the centerline of the outer frame material in the longitudinal direction; bending the inner frame fixing pieces inwardly at an angle to have a predetermined angle; cutting a colored steel plate to have a predetermined length and width to form an inner frame material; bending the inner frame material in an L-shape to form an inner vertical plate and a first inner horizontal plate; forming an inner inclined plate having a predetermined angle on the first inner horizontal plate; bending the end of the inner inclined plate in the horizontal direction by a predetermined width to form a second inner horizontal plate; and combining the inner frame with the inner frame to the inner side of the outer frame. and a step of compressing the inner frame fixing pieces of the outer frame so that the inner frame is integrally fixed on the inner side of the outer frame;

Additionally, prior to performing the step of bending the inner frame fixing pieces inwardly at a predetermined angle, the method further comprises: forming a first outer horizontal plate in a horizontal direction from the lower end of the outer vertical plate; forming an outer inclined plate at a predetermined angle toward the lower end from the end of the first outer horizontal plate; and forming a second outer horizontal plate in a horizontal direction consecutively from the end of the outer inclined plate.

Additionally, when forming a first inner horizontal plate on the inner frame, the method further includes the step of integrally bending and forming a screw coupling groove having a "U" shaped cross-section along the longitudinal direction of the first inner horizontal plate.

In addition, when forming the second inner horizontal plate of the inner frame, the method is further characterized by performing the step of integrally bending and forming a light-transmitting plate support projection having a cross-sectional shape of "∩" in the longitudinal direction of the second inner horizontal plate.

As explained above, according to the iron lighting frame for a lighting fixture and the method of manufacturing the same of the present invention, the frame of the lighting fixture is formed by dividing it into an inner frame and an outer frame using a relatively thin colored steel plate, and by combining the inner frame and the outer frame into one, it is possible to maintain sufficient bending strength and torsional strength while keeping the weight low, so the appearance of the lighting fixture itself is aesthetic, manufacturing costs can be reduced, workability in manufacturing can be greatly improved, and mass production and maintenance can be easily carried out, making it a very useful invention.

Other effects of the present invention will be obvious to those skilled in the art through the specific details described below or during the process of implementing the present invention.

FIG. 1 is a partial cross-sectional view of a lighting fixture to which an embodiment of the present invention is applied.
FIGS. 2 and FIGS. 3 are perspective views of a frame to which an embodiment of the present invention is applied.
FIG. 4 is a partial bottom and front perspective photograph of a lighting fixture to which an embodiment of the present invention is applied.
FIG. 5 is a partial cross-sectional view of a lighting fixture to which another embodiment of the present invention is applied.
FIG. 6 is a partial cross-sectional view of a lighting fixture to which another embodiment of the present invention is applied.
FIGS. 7 (a) to (c) are side cross-sectional views of a frame to which another embodiment of the present invention is applied.
FIG. 8 (a) and (b) are side cross-sectional views of a frame to which another embodiment of the present invention is applied.
FIG. 9 is a cross-sectional view by process to explain a method for manufacturing a frame of a lighting fixture to which an embodiment of the present invention is applied.

The present invention is capable of various modifications and may take various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the invention to the specific disclosed forms, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which this invention pertains.

Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

Hereinafter, the operating state according to each configuration, including a preferred embodiment according to the present invention, will be described in detail with reference to the attached drawings.

FIG. 1 shows a partial cross-sectional view of a lighting fixture to which an embodiment of the present invention is applied, FIG. 2 and FIG. 3 show perspective views of a frame to which an embodiment of the present invention is applied, and FIG. 4 shows a partial bottom and front perspective photograph of a lighting fixture to which an embodiment of the present invention is applied.

In addition, FIG. 5 shows a partial front cross-sectional view of a lighting fixture to which another embodiment of the present invention is applied, FIG. 6 shows a partial front cross-sectional view of a lighting fixture to which yet another embodiment of the present invention is applied, FIG. 7 (a) to (c) shows side cross-sectional views of a frame to which yet another embodiment of the present invention is applied, and FIG. 8 (a) and (b) show side cross-sectional views of a frame to which yet another embodiment of the present invention is applied.

Also, FIG. 9 shows a cross-sectional view by process to explain a method for manufacturing a frame of a lighting fixture to which an embodiment of the present invention is applied.

According to this, a steel lighting frame for a lighting fixture to which an embodiment of the present invention is applied comprises, as shown in FIGS. 1 to 4, a frame (1000) having a square frame shape, a light-transmitting plate (2000), a light-transmitting plate and printed circuit board fixing device (3000), and a printed circuit board for lighting (5000), wherein the frame (1000) is formed into an outer frame (1100) and an inner frame (1200) formed using a colored steel plate, and the inner frame (1200) is integrally fixedly installed on the inner side of the outer frame (1100), as a main technical component.

Additionally, the present invention may further include a cover plate (4000) that is detachably fixed to the upper opening of the frame (1000).

At this time, the lighting frame (1000) can basically be composed of two pairs of longitudinal and transverse frames when referring to FIGS. 1 and FIGS. 4, and these two pairs of longitudinal and transverse frames are joined to each other through a plurality of corner joints to form an overall rectangular frame shape and perform the function of the main body of the lighting.

The above corner coupling member is typically formed using a synthetic resin material so that its flat cross-section has a "┗" shape, and can be formed facing the side cross-section of the frame (1000). For example, the side cross-section may have an "L" shape corresponding to the frame shape of the present invention, a horizontal plate insertion groove may be formed in the horizontal plate coupling part, and an insertion projection that is inserted into the screw receiving space may be formed protruding from the horizontal plate insertion part. As can be seen in FIG. 4, such a corner coupling member may have a form in which it is integrally fixed to the frame by means of a screw, etc., while being coupled to the joint of adjacent longitudinal and transverse frames.

Additionally, the light-transmitting plate (2000) includes a light-diffusing plate made of acrylic plate or the like, and performs the function of transmitting lighting light generated from a light source such as an LED to the outside while installed inside the frame (1000) in a manner that blocks the open area.

In addition, the light-transmitting plate and printed circuit board fixing member (3000) may have a shape in which a fixing piece having a shape of a plate spring is integrally bent and formed along the periphery of the main body, which has a front cross-section and a side cross-section having a shape of approximately "┏┓".

The above-mentioned light-transmitting plate and printed circuit board fixing device (3000) performs the function of fixing the light-transmitting plate (2000) to the inner surface of the frame (1000) while fixedly installed on the frame (1000) through screws, etc., and also allows the lighting printed circuit board (5000), described later, to be detachably fixedly installed on the ceiling surface.

At this time, the light-transmitting plate and printed circuit board fixing device (3000) may exclude the installation of the cover plate (4000) described later as in FIG. 1 and FIG. 4, and may also perform the function of the cover plate.

Additionally, the cover plate (4000) may be formed to have a rectangular plate shape and is detachably fixed to the upper opening of the frame (1000) in a blocking manner, thereby performing the function of preventing dust, etc. from entering the interior of the lighting fixture to which the present invention is applied.

At this time, the cover plate (4000) may be excluded from the essential components, and if it is excluded from the essential components in this way, the light-transmitting plate and printed circuit board fixing device (3000) may also perform the function of the cover plate (4000).

In addition, the above-mentioned printed circuit board (5000) for lighting has a form in which a plurality of LEDs and LED driving components are mounted, and is fixedly installed on the ceiling surface of the light-transmitting plate and the printed circuit board fixing device (3000) to perform the function of generating light required for lighting in a place where a lighting fixture is installed.

Meanwhile, the outer frame (1100) among the frame (1000), which is a key technical component of the present invention, is formed using a colored steel plate with a predetermined length, width, and thickness (e.g., relatively thin, 0.14 to 0.8 mm), and may have an outer vertical plate (1110) having a predetermined height and an outer horizontal plate (1120) having a predetermined width that are bent into an "L" shape.

In addition, the inner frame fixing piece (1130) may be integrally formed by bending at a predetermined angle along the longitudinal direction from the upper end of the outer vertical plate (1110) and along the longitudinal direction from the end of the outer horizontal plate (1120).

The above-mentioned external frame (1100) performs the function of being finally exposed to the outside when a light fixture is installed on a ceiling, etc., thereby providing the light fixture itself with aesthetic appeal.

Additionally, the inner frame (1200) is formed using a colored steel plate with a predetermined length, width, and thickness (relatively thin), similar to the outer frame (1100). It may have an inner vertical plate (1210) having a predetermined height (a height corresponding to the height of the outer vertical plate (1110) of the outer frame (1100)) and a first inner horizontal plate (1220) having a predetermined width, which are formed by being bent into an "L" shape. Furthermore, from the end of the first inner horizontal plate (1220) toward the downward portion, an inner inclined plate (1230) inclined at a predetermined angle is formed by being bent in succession, and from the end of the inner inclined plate (1230), a second inner horizontal plate (1240) on which the light-transmitting plate (2000) is seated is integrally extended in the horizontal direction.

At this time, the total width of the first inner horizontal plate (1220), the inner inclined plate (1230), and the second inner horizontal plate (1240) may have the same shape as the width of the outer horizontal plate (1120) of the outer frame (1100).

Additionally, the inner frame (1200) may have a shape in which the upper part of the inner vertical plate (1210) and the end part of the second inner horizontal plate (1240) are integrally fixed by the inner frame fixing piece (1130) formed by bending it into the outer frame (1100) while the inner frame (1200) is positioned inside the outer frame (1100), thereby having a shape in which a screw receiving space (1300) for fixing the light-transmitting plate and printed circuit board fixing member (3000) is formed between the bottom surface of the first inner horizontal plate (1220) and the upper surface of the outer horizontal plate (1120) of the outer frame (1100).

The inner frame (1200) is integrally fixed to the inner side of the outer frame (1100) and performs the function of increasing the shear strength, including the overall bending strength and torsional strength of the frame (1000), as well as the function of maintaining a fixed form inside the frame (1000) having a square frame shape without the screws, etc., that fix the light-transmitting plate and printed circuit board fixing device (3000) being exposed to the outside.

At this time, as an example of a deformation of the inner frame (1200), a first inner horizontal plate (1220) having a predetermined width at the lower end of the inner vertical plate (1210) may be formed by bending it into an "L" shape, and an inner inclined plate (1230) inclined at a predetermined angle as shown in (a) and (c) of FIG. 7 may be formed by continuously bending it from the end of the first inner horizontal plate (1220) toward the lower end.

In order to combine the inner frame (1200), which is equipped with only an inner vertical plate (1210), a first inner horizontal plate (1220), and an inner inclined plate (1230), with the outer frame (1100), the inner frame (1200) is placed inside the outer frame (1100), and the upper part of the inner vertical plate (1210) and the inner inclined plate (1230) are fixed integrally by the inner frame fixing piece (1130) that is bent and formed on the outer frame (1100) as shown in (a) and (c) of FIG. 7.

In addition, as shown in FIG. 5, in another embodiment of the present invention, the outer horizontal plate (1120) of the outer frame (1100) may be composed of a first outer horizontal plate (1121), an outer inclined plate (1122), and a second outer horizontal plate (1123), just like the inner frame (1200) described above.

At this time, the first outer horizontal plate (1121) may have a shape formed by bending it to have a predetermined width in a horizontal direction at a position higher than the second outer horizontal plate (1123) described later at the lower end of the outer vertical plate (1110).

Additionally, the outer inclined plate (1122) may have a shape formed by being continuously bent at a predetermined angle toward the lower portion from the end of the first outer horizontal plate (1121).

Additionally, the second outer horizontal plate (1123) may have a shape formed by being continuously bent in a horizontal direction from the end of the outer inclined plate (1122), and may have a shape in which the upper surface is in close contact with the lower surface of the second inner horizontal plate (1240) of the inner frame (1200), and the second outer horizontal plate (1123) of the outer frame (1100) may be integrally fixed to the second outer horizontal plate (1123) of the outer frame by the inner frame fixing piece (1130) which is integrally bent and formed to the second outer horizontal plate (1123) of the outer frame (1100).

In this way, when the outer horizontal plate (1120) of the outer frame (1100) is composed of a first outer horizontal plate (1121), an outer inclined plate (1122), and a second outer horizontal plate (1123), the bending strength, torsional strength, and shear strength can be further increased compared to when the outer horizontal plate (1120) of the outer frame (1100) is formed as a single piece, and the external appearance of the outer frame (1100) exposed to the outside can have a more aesthetically pleasing shape.

In addition, as another embodiment of the present invention, as shown in (b) and (c) of FIG. 7, the first inner horizontal plate (1220) of the inner frame (1200) may have a screw coupling groove (1221) formed integrally by bending the longitudinal cross-section to have a "U" shape.

In this way, if a screw coupling groove (1221) is integrally formed on the first inner horizontal plate (1220) of the inner frame (1200), the bending strength, torsional strength, and shear strength of the first inner horizontal plate (1220) of the inner frame (1200) can be further increased. Additionally, when fixing the light-transmitting plate and printed circuit board fixing device (3000) to the first inner horizontal plate (1220) of the inner frame (1200) using screws, the coupling force of the screws can be further increased because each screw is coupled to pass through the screw coupling groove (1221) formed in the first inner horizontal plate (1220).

In addition, another embodiment according to the present invention includes, as shown in FIG. 6, a light-transmitting plate support projection (1241) having a cross-sectional shape of "∩" in the longitudinal direction is further formed by integrally bending it on the second inner horizontal plate (1240) of the inner frame (1200).

At this time, it is preferable that the height of the light-transmitting plate support projection (1241) be formed to correspond to the thickness of the inner frame fixing piece (1130).

In this way, if a light-transmitting plate support projection (1241) having a cross-sectional shape of "∩" is further bent and formed on the second inner horizontal plate (1240) of the inner frame (1200), the lower end of the light-transmitting plate (2000) placed on the inner frame fixing piece (1130) that is bent and formed on the end of the outer horizontal plate (1120) or the second outer horizontal plate (1123) of the outer frame (1100) inside the frame (1000) is also supported by the light-transmitting plate support projection (1241).

Accordingly, the light-transmitting plate (2000) is fixed to the first inner horizontal plate (1220) of the inner frame (1200) by means of the light-transmitting plate and printed circuit board fixing members (3000) and screws, etc., in a form that maintains overall horizontality, so the light-transmitting plate (2000) is not bent and maintains a stable installed form.

Additionally, FIG. 8(a) and FIG. 8(b) illustrate side cross-sectional views of a frame to which another embodiment of the present invention is applied. Instead of the inner inclined plate (1230) formed to be inclined at a predetermined angle toward the downward portion from the end of the first inner horizontal plate (1220) of the inner frame (1200), an inner vertical plate (1230a) is formed to have 90 degrees in different directions between the first inner horizontal plate (1220) and the second inner horizontal plate (1240) as in FIG. 8(a), or, in addition to the inner frame (1200), the outer frame (1100) is formed to be inclined at a predetermined angle toward the downward portion from the end of the first outer horizontal plate (1121), an outer inclined plate (1122) is formed to have 90 degrees in different directions between the first outer horizontal plate (1121) and the second outer horizontal plate (1123) as in FIG. 8(b). The outer vertical plate (1122a) may also be formed to have a 90-degree angle.

In this way, if an inner vertical plate (1230a) is formed between the first inner horizontal plate (1220) and the second inner horizontal plate (1240) of the inner frame (1200) as in Fig. 8 (a), or if an outer vertical plate (1122a) is formed between the first outer horizontal plate (1121) and the second outer horizontal plate (1123) of the outer frame (1100) as in Fig. 8 (b), the vertical bending strength of the inner frame (1200) or the outer frame (1100) can be further increased compared to forming the inner inclined plate (1230) or the outer inclined plate (1122), thereby further increasing the bending strength of the iron lighting frame itself to which the present invention is applied.

Meanwhile, the method for manufacturing a steel lighting frame for a lighting fixture according to the present invention, as illustrated in FIG. 9, largely comprises the steps of manufacturing an outer frame (1100) and an inner frame (1200) respectively using a cutting device, a step and a sequential mold, a press, etc., and positioning the inner frame (1200) on the inside of the outer frame (1100) thus manufactured and joining them together.

At this time, the manufacturing order of the outer frame (1100) and the inner frame (1200) is not specifically determined, and they may be manufactured at different times or simultaneously through different lines using step and sequential molds having different shapes, including a cutting device and a press.

First, the process of manufacturing the outer frame (1100) can be manufactured by the steps of: forming an outer frame material (OFM) (S10) by cutting a color steel plate having a relatively thin thickness using a cutting device to have a predetermined length and width, as shown in FIG. 9; then forming an inner frame fixing piece (1130) having a predetermined height in the vertical direction at both ends of the outer frame material (OFM) by bending it using a step or sequential mold and a press (S20); subsequently forming an outer vertical plate (1110) and an outer horizontal plate (1120) by bending it into an "L" shape along the centerline of the outer frame material (OFM) in the longitudinal direction (S30); and finally, bending the inner frame fixing pieces (1130) inwardly at an angle (S40).

Additionally, the process of manufacturing the inner frame (1200) can be manufactured through the steps of: forming an inner frame material (IFM) (S50) by cutting a color steel plate having a relatively thin thickness, similar to the outer frame (1100), using a cutting device to have a predetermined length and width, then forming the inner frame material (IFM) by bending it into an "L" shape using a step or sequential mold and a press, etc. (S60); then forming an inner vertical plate (1210) and a first inner horizontal plate (1220) by forming an inner inclined plate (1230) having a predetermined angle on the first inner horizontal plate (1220) (S70); and finally forming a second inner horizontal plate (1240) by bending it horizontally by a predetermined width at the end of the inner inclined plate (1230) (S80).

Additionally, the process of finally manufacturing the frame (1000) of the lighting fixture by combining the outer frame (1100) and the inner frame (1200) can be completed by combining (S90) the inner frame (1200) manufactured through the above steps to the inner side of the outer frame (1100), and then using a press to compress the inner frame fixing pieces (1130) of the outer frame (1100) so that the inner frame (1200) is fixed integrally on the inner side of the outer frame (1100), thereby completing the manufacturing of the longitudinal and transverse frames of the lighting fixture.

In addition, as another embodiment of the method for manufacturing a steel lighting frame for a lighting fixture according to the present invention, before performing the step (S40) of bending the inner frame fixing piece (1130) of the outer frame (1100) inwardly at a predetermined angle, a first outer horizontal plate (1121) is formed in a horizontal direction from the lower end of the outer vertical plate (1110), and then an outer inclined plate (1122) is formed at a predetermined angle toward the lower end from the end of the first outer horizontal plate (1121), and then a second outer horizontal plate (1123) is formed in a horizontal direction from the end of the outer inclined plate (1122) to have a shape as shown in FIG. 5.

That is, the outer horizontal plate (1120) of the outer frame (1100), which was formed as a single plate shape in the above embodiment, may be manufactured in a form in which the first outer horizontal plate (1121), the outer inclined plate (1122), and the second outer horizontal plate (1120) are integrally provided to be similar to the inner frame (1200).

In this way, if the outer horizontal plate (1120) of the outer frame (1100) is manufactured in a form in which the first outer horizontal plate (1121), the outer inclined plate (1122), and the second outer horizontal plate (1120) are integrally provided, the bending strength, torsional strength, and shear strength of the outer frame (1100) can be further increased, and the appearance of the outer frame (1100) exposed to the outside can have a more aesthetically pleasing form.

In addition, another embodiment of the method for manufacturing a steel lighting frame for a lighting fixture according to the present invention further includes the step of integrally bending and forming a screw coupling groove (1221) having a "U" shape on the cross-section as shown in (b) and (c) of FIG. 7 along the longitudinal centerline of the first inner horizontal plate (1220) when performing the step (S70) of forming a first inner horizontal plate (1200).

In this way, if a screw coupling groove (1221) is further formed integrally on the first inner horizontal plate (1220) of the inner frame (1200), the bending strength, torsional strength, and shear strength of the first inner horizontal plate (1220) of the inner frame (1200) can be further increased, and the coupling strength of the screw can be further increased.

In addition, as another embodiment of the method for manufacturing a steel lighting frame for a lighting fixture according to the present invention, when performing the step (S80) of forming the second inner horizontal plate (1240) of the inner frame (1200) as shown in FIG. 6, the method further includes the step of integrally bending and forming a light-transmitting plate support projection (1241) having a cross-sectional shape of "∩" in the longitudinal direction of the second inner horizontal plate (1240).

In this way, when a light-transmitting plate support projection (1241) having a cross-sectional shape of "∩" is further bent and formed on the second inner horizontal plate (1240) of the inner frame (1200), the bottom end of the light-transmitting plate (2000) is supported by the inner frame fixing piece (1130) of the outer frame (1100) and the light-transmitting plate support projection (1241), thereby maintaining a stable installed shape without bending the light-transmitting plate (2000).

As described above, it is obvious to those skilled in the art that the present invention is not limited to the described embodiments and can be modified and varied in various ways without departing from the spirit and scope of the invention.

Accordingly, since the invention can be implemented in various other forms without departing from the technical concept or main features, the embodiments of the invention are merely examples in all respects and should not be interpreted restrictively, but can be implemented with various modifications.

In other words, although the detailed description of the present invention described above has been explained with reference to preferred embodiments of the invention, those skilled in the art or those with ordinary knowledge in the relevant technical field will understand that various modifications and changes can be made to the present invention without departing from the spirit and technical scope of the invention as described in the claims set forth below.

1000 : Frame
OFM: External frame material
1100 : External frame
1110 : Outer vertical plate
1120: Outer horizontal plate 1121: First outer horizontal plate
1122: Outer inclined plate 1123: Second outer horizontal plate
1130 : Internal frame fixing piece
IFM: Internal frame material
1200 : Internal frame
1210 : Inner vertical plate
1220: First inner horizontal plate 1221: Screw coupling groove
1230 : Inner inclined plate
1240: Second inner horizontal plate 1241: Light-transmitting plate support projection
1300: Screw receiving space
2000 : Light-transmitting panel
3000 : Fixtures for light-transmitting plates and printed circuit boards
4000 : Cover plate
5000 : Printed circuit board for lighting

Claims (8)

A lighting fixture comprising: a frame having a square frame shape; a light-transmitting plate seated on the inner surface of the frame; a light-transmitting plate and printed circuit board fixing device for fixing the light-transmitting plate and the printed circuit board for lighting to the inner surface of the frame; and a printed circuit board for lighting installed on the ceiling surface of the light-transmitting plate and printed circuit board fixing device, having a form in which a plurality of LEDs and LED driving components are mounted.
The above frame is,
An outer frame formed by bending an outer vertical plate and an outer horizontal plate into an "L" shape using steel plates, wherein the outer vertical plate and the outer horizontal plate are integrally bent inward from their ends; and
An iron lighting frame for a lighting fixture comprising: an inner vertical plate and a first inner horizontal plate formed by being bent into an "L" shape, wherein the height of the inner vertical plate corresponds to the height of the outer vertical plate of the outer frame, an inner inclined plate is formed downward from the end of the first inner horizontal plate, and a second inner horizontal plate on which the light-transmitting plate is seated is integrally extended from the end of the inner inclined plate in a horizontal direction, and the total width of the first inner horizontal plate, the inner inclined plate, and the second inner horizontal plate is the same as the width of the outer horizontal plate of the outer frame, and a screw receiving space is formed between the bottom surface of the first inner horizontal plate and the top surface of the outer horizontal plate of the outer frame.
In claim 1,
The outer horizontal plate of the above outer frame is,
A first outer horizontal plate formed by bending horizontally at the lower end of the above outer vertical plate; an outer inclined plate formed at a predetermined angle toward the lower end of the first outer horizontal plate; and
A steel lighting frame for a lighting fixture, characterized by being composed of a second outer horizontal plate that is formed to extend horizontally in succession from the end of the outer inclined plate and whose upper surface is in close contact with the lower surface of the second inner horizontal plate of the inner frame.
In claim 1,
In the longitudinal direction of the first inner horizontal plate of the above inner frame,
A steel lighting frame for a lighting fixture, comprising a cross-sectional area having a "U" shape and an integrally bent screw coupling groove formed to allow a screw fixing the light-transmitting plate and printed circuit board fixing member to pass through and be coupled.
In claim 1,
In the longitudinal direction on the second inner horizontal plate of the above inner frame,
A steel lighting frame for a lighting fixture, characterized by having a light-transmitting plate support projection having a cross-sectional shape of "∩" integrally bent and formed. delete delete delete delete