KR101142623B1 - Grant method of expansion absorption function from light guide plate unit - Google Patents

Abstract

The present invention solves the problems of the conventional light guide plate, and combines an expansion absorption function and a heat dissipation function to absorb expansion and contraction due to thermal expansion of a synthetic resin light guide plate (D), such as an acrylic plate, and is easy to assemble and disassemble. It is to provide a light guide plate unit (U) which is convenient for installation.
A united light guide plate unit (U) having a synthetic resin light guide plate (D), a metal frame body (F), and a light source unit (L) as a main element, and the metal frame body (F) reduces thermal expansion of the synthetic light guide plate (D). A light guide plate unit (U) having both a heat dissipation function and an expansion absorption function for absorbing expansion and contraction due to thermal expansion of the synthetic resin light guide plate (D).

Description

Grant method of expansion absorption function from light guide plate unit}

The present invention relates to a light guide plate which is mainly used for lighting by applying the action that the light is emitted from the surface of the light guide plate by shining light on a synthetic resin light guide plate such as an acrylic plate, more specifically, it is a border from a metal such as aluminum material, distortion It relates to a light guide plate unit (U) composed of a manufacturing that is easy to install or assemble without occurrence.

Methacrylic resin plates (commonly called acrylic plates, hereinafter referred to as acrylic plates) have high transparency, high hardness, and excellent weather resistance, heat resistance, and chemical resistance. It is used variously for a display, a display, etc.

Above all, as the plate material, a fine mark is made on the surface of the acrylic plate by laser light or the like, and the light is reflected on the cross section of the acrylic plate, thereby bending the light at the spot where the light is made and emitting light from the surface of the acrylic plate, that is, an operation called an edge writing effect. The acrylic light guide plate which applied this is used variously for store display.

Examples of the marks generated by the laser beam include line drawing, dot arrangement, engraving design, and the like.

In addition, as the light shining on the cross section, LED is used as a light source.

When the acrylic light guide plate to which this edge lighting effect is applied is installed in a store etc. for illumination, the operation | work of attaching an acryl plate to the frame material installed in the field, attaching a light source to this end surface, and wiring are calculated | required.

Desired acrylic plates are different in size, and depending on the place of installation, there are also places where the attachment of light sources and the wiring work are difficult.

As a countermeasure against this, a structure in which these lighting devices are united and easy to handle and assemble is required.

As the unitization, as can be seen in Japanese Patent Laid-Open No. 2005-56711, although it is united with one lighting device, it is not necessarily configured to assemble and use a plurality of light guide plate units.

As for the use of the assembly, Japanese Patent Application Laid-Open No. 2009-264060 can be cited, but this is a means of installing the frame member on site and attaching an acrylic plate to it, which is hardly said to be unitized.

In addition, another example of the unitization is a means for rigidly bordering a rectangular acrylic plate with a frame such as a square aluminum material, and the acrylic plate is secured by the frame body so that thermal expansion of the acrylic plate is prevented. As a result, there is a problem that distortion such as bending of the acrylic plate occurs.

In order to solve this problem, a means for providing a gap portion between the frame body composed of a square and the acrylic light guide plate has been considered. In order to absorb these grooves and to absorb thermal expansion, as shown in Figs. 8 and 9, means in which the bow-shaped leaf springs B are fitted to the gaps are also employed. In this case, the structure becomes complicated, The strength adjustment, processing, and assembly of the plate strings B were cumbersome and costly and did not provide a proper solution.

Moreover, although the method of sticking and fixing a tape in the vicinity of the cross section of an acryl plate was also used, this also interfered with the thermal expansion of an acryl plate, and there existed a problem that an acryl plate bends.

Japanese Patent Laid-Open No. 2005-56711, Japanese Patent Laid-Open No. 2009-264060

This invention is made on the background of all circumstances as mentioned above.

That is, an object of the present invention is to provide a united light guide plate unit U having a synthetic resin light guide plate D, such as an acrylic light guide plate, a metal frame F, and a light source unit L as main elements,

In addition, the metal frame (F) to provide a light guide plate unit (U) having a heat radiation function to reduce the thermal expansion of the synthetic resin light guide plate (D) and an expansion absorption function to prevent distortion.

That is, the present invention is a light guide plate unit having a polygonal synthetic resin light guide plate and a metal frame body supporting the synthetic resin light guide plate in a circumference, and having a light source unit disposed on an end face of the synthetic resin light guide plate, wherein the light source unit is pressed against the end surface of the synthetic light guide plate. Light guide plate unit.

That is, in the present invention, the synthetic resin light guide plate is slidably coupled to the coupling portion provided inside the metal frame body, and the light source unit embedded in the coupling portion of the metal frame body is integrally connected to the metal frame body and pressed against the cross section of the synthetic resin light guide plate. Each of the frame members constituting the metal frame body is formed in close contact with each other so as to be detachable from each other, and the metal frame body is the light guide plate unit of the above-described substrate having heat dissipation fins.

That is, in the present invention, the frame members constituting the metal frame body are in close contact with each other by the tension and adhesion function members at the close contact portion, and the heat dissipation fin grooves are formed between the plurality of heat dissipation fins of the metal frame body. It is a light guide plate unit of the said base material in which the tension contact function member is built in.

That is, this invention consists of the corner member which has the bending part bent at the same angle as the corner part which the tension-contact function member forms in the close_contact | adherence part of a frame body, and the elastic member attached to the both ends of the corner member, The elastic member The light guide plate unit of the base material is provided with a locking portion at the end of the member, and a fixing portion for locking the locking portion is formed at the frame member.

That is, this invention is the light guide plate unit of the said base material whose elastic member is a spiral spring.

That is, the present invention is a light guide plate unit of the above-described substrate in which the synthetic resin light guide plate and the metal frame supporting the same are polygonal.

That is, this invention is the light-guide plate unit of the said base material with which a synthetic resin light-guide plate is a metal krill resin plate, and a frame material is formed from aluminum.

That is, this invention is the light-guide plate unit of the said base material which has a heat radiation fin in the outer periphery or lower surface side of a metal frame body.

That is, this invention is the light guide plate unit of the said base material which is a high brightness LED in which the light source part is formed in planar shape so that the upper surface may be in surface contact with the end surface of a synthetic resin light guide plate.

That is, the present invention provides a synthetic resin light guide plate and a metal frame body for supporting the synthetic resin light guide plate in a circumference, and provides the expansion and absorption function in the light guide plate unit in which a light source unit is arranged on the end face of the synthetic resin light guide plate. An expansion-absorption function is provided in which a coupling part provided inside the frame is slidably coupled, and the light source unit is pressed against the end face of the synthetic resin light guide plate which is integrated with the metal frame body.

Since the light guide plate unit (U) of the present invention is preassembled using the synthetic resin light guide plate (D), the metal frame body (F), and the light source unit (L) as the main elements, the time required for bringing it into the site and laying it is reduced. It can be done with little manpower.

In addition, the shape and size of the light guide plate unit U can be set freely in advance as required, and as a result, there is an advantage that an effective display is possible.

In the light guide plate unit U of the present invention, since the frame members J and J constituting the metal frame body F are in close contact with each other with the tensile adhesion function member T in the close contact portion S, the light guide plate unit U is in close contact with each other. When the synthetic resin light guide plate D expands due to thermal expansion, the metal frame F expands to absorb the thermal expansion, and thus no distortion problem such as bending of the synthetic light guide plate D occurs.

In the light guide plate unit U of the present invention, the tensile adhesion function member T has elastic members T2 such as spiral springs attached to both ends of the corner member T1 having the bent portion T4 which is bent. Because of the structure, even if the elastic members T2 and T2 are stretched in either direction due to thermal expansion of the synthetic resin light guide plate D, the corner members T1 become posts, so that the entire tensile adhesion function member T does not shift. It is possible to keep the metal frame F in a circle at all times.

And the light-guide plate unit U of this invention is an elastic member T2 in the fixing part G provided with two frame materials J and J, respectively, in the vicinity of each corner part C of the metal frame body F. As shown in FIG. Since it is intended to catch the engaging portion T3 formed at both ends of the c), it is very easy to assemble and disassemble, the manufacturing cost is low, and the assembly and disassembly is possible in a short time. It is effective.

For example, when the synthetic resin light guide plate D, the metal frame body F, or the like, which is a constituent member of the light guide plate unit U, is damaged, the damaged parts can be easily replaced.

In addition, the metal frame F of the light guide plate unit U of the present invention is not only to rim the synthetic light guide plate D, but also includes a high-brightness LED L1 that is a light source unit L, H) serves as a heat sink (heat sink), and also has an expansion absorption function.

Since the metal frame body F has a complex function, the light guide plate unit U itself has a simple structure, which is advantageous in that it is easy to install, handle, and look good.

The metal frame body F of the light guide plate unit U of the present invention is formed of a metal having good heat transfer ability, and at the same time, the heat dissipation fins H are formed at the end of the frame member J as shown in FIGS. 1 and 2. Since it is provided, the heat dissipation function is exhibited in double, and there is an advantage that the thermal expansion of the synthetic resin light guide plate D formed of a resin plate such as an acrylic plate is reduced.

In addition, when the heat dissipation fin H of the present invention is provided on the outer circumference of the frame members J, J, as shown in Figs. 1 and 2, there is an advantage that the light guide plate unit U can be made thin. As shown in FIG. 6, when provided on the lower surface of the metal frame body F, the planar area when the light guide plate unit U is viewed from the vertical plane can be reduced.

With respect to both means, it is also possible to select either one or to adopt simultaneously depending on the purpose of use and the conditions of use.

In the light guide plate unit U of the present invention, the high-brightness LED L1 used as the light source portion L is incorporated in the engaging portion K of the frame member J, and the frame member J itself is in close contact with the tension member. Since the cross-section D1 of the synthetic resin light guide plate D pulled together by the tensile force of the functional member T is suppressed, as a result, the upper surface L2 formed on the plane of the high-brightness LED L1 is the cross-section of the synthetic light guide plate D. It is always in close contact with (D1), there is an advantage that the light of the high brightness LED (L1) is completely guided to the synthetic light guide plate (D).

In addition, when the light guide plate unit U of the present invention has a polygon, a visual change can be obtained, and the display effect is improved.

In particular, in the case where the light guide plate unit U is a regular hexagon, as shown in Fig. 7, when the combination is laid in combination, the overall shape is hexagonal, and a visually beautiful feature is obtained.

Further, depending on the polygon to be employed, the light guide plate unit U can be combined three-dimensionally, and the use range thereof is expanded.

1 is a perspective view of the light guide plate unit U. FIG.
FIG. 2 is a partially cut perspective view in which the metal frame F in the light guide plate unit U is partially cut.
3 is a perspective view of the tensile adhesion function member T. FIG.
4 is a perspective view of the light source unit L in which the high brightness LEDs L1 are arranged.
5 is a partial perspective view in which the metal frame F is pushed out by the thermal expansion of the synthetic resin light guide plate D, whereby the gap E is formed.
6 is a cross-sectional perspective view in which the heat dissipation fin H is provided on the lower surface side of the metal frame body F. As shown in FIG.
7 is a perspective view when the light guide plate unit U is hexagonal.
8 is a perspective view of a light guide plate unit U of the prior art.
9 is a perspective view of the bow-shaped leaf spring B used for the light guide plate unit U of the prior art.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described in detail, referring drawings as needed.

(First Embodiment)

1 is a perspective view showing a first embodiment of the present invention, and FIG. 2 is a partially cut perspective view showing a state in which the metal frame body F of the light guide plate unit U is assembled.

In this embodiment, the synthetic resin light guide plate D is formed in a rectangle.

Therefore, the metal frame F also becomes the same rectangle. An acrylic plate is used for the synthetic resin light guide plate (D).

The metal frame body F is formed of aluminum material and consists of four frame materials J. As shown in FIG.

The synthetic resin light guide plate D is slidably coupled inward and outward with a cross-section c-shaped coupling portion K formed integrally inside the metal frame F shown in FIG. 2, that is, inside the frame member J. .

The frame member J of the metal frame body F is formed at an oblique end, respectively, to face each other to form a close contact portion S, and at the close contact portion S to the tensile close contact function member T. It is in close contact with each other so as to be slid and separated from each other.

In addition, a guide member (not shown) is provided in the frame member J. FIG.

And the light source part L (namely, L chip) is mounted in the bottom part of the cross-section c-shaped coupling part K provided in the inside of the metal frame F. As shown in FIG.

In this embodiment, the high-brightness LED L1 is employ | adopted as the light source part L, and is built in the coupling part K of two frame materials J and J which oppose each other.

As shown in FIG. 4, the high brightness LED L1 is arranged in the base part LA in series, and forms the light source part L. As shown in FIG.

Moreover, this light source part L has electrical wiring L2, and wiring in the field is made easy.

4, the upper surface L3 is formed in planar shape, as shown in FIG. 4, and the cross section D1 of the synthetic resin light guide plate D is pulled out by the tensile force of the tension-adhesive function member T. As shown in FIG. It is pressurized in the state and it is in a state of being stuck closely.

Then, the light emitted from the high-brightness LED K1 enters the inside of the synthetic resin light guide plate D without leaking, and light is emitted from the laser marks generated on the surface of the synthetic resin light guide plate D by the edge lighting effect described above, thereby serving as a lighting device. Exert.

Here, in order for the light source part L to be integrated with the frame material J and to fully suppress the end surface D1 of the synthetic resin light guide plate D, the joining between the frame materials J and J in the close contact portion S will be described. Minor spacing adjustments are made.

The high-brightness LED L1 generates less heat than incandescent bulbs, and the acrylic plate used for the synthetic light guide plate D is thermally expanded due to the heat generation.

Therefore, in the light guide plate unit U, three heat dissipation fins H having a heat sinking function are provided inside the metal frame F. As shown in FIG. By forming the metal frame body F from an aluminum material, the entire metal frame body F is light and has a heat dissipation effect.

The light guide plate unit U in the present invention has a thermal expansion absorption function, which is exerted by the metal frame body F and the tensile adhesion function member T.

As shown in Fig. 3, the tension-adhesive function member T is a corner spring T1 having a bent portion T4 bent at right angles, and spiral springs which are elastic members T2 and T2 provided at both ends thereof. It consists of.

Then, the bent portion T4 of the corner member T1 is applied to the corner portion C of the close contact portion S, and the engaging portions T3 and T3 formed at the tip of the elastic member T2 are attached to the metal frame body F. FIG. Hangs on fixing parts G and G formed in part of the heat dissipation fin H of the < RTI ID = 0.0 >

In this embodiment, the locking portion T3 adopts a hook shape, and the fixing portion G is formed by notching a part of the heat dissipation fin H.

According to this setting, the tension adhesion function member T becomes a shape embedded in the heat radiation fin groove H1 formed by the three heat radiation fins H, and the tension adhesion function member T is the light guide plate unit U. It is easy to use because it does not protrude outward.

Moreover, since the fixing | fixed part G can also be provided only by cutting out a part using the heat radiating fin H, it is efficient in processing and cost.

According to the thermal expansion absorbing function exerted by the metal frame body F and the tension-adhesive function member T in this manner, the synthetic resin light guide plate D is thermally expanded in one direction due to thermal expansion during use of the light guide plate unit U. Even if the tension is increased, since the corner portion C of the metal frame F and the bent portion T4 of the corner member T1 coincide with each other, it becomes a prop and the entire tension-adhesive function member T does not shift. The metal frame F is reliably held in a square to enable a circular return.

Their operation will be described in a partial perspective view of FIG. 5.

When the frame member J receives the elongation due to thermal expansion of the synthetic resin light guide plate D, the elongation is absorbed by forming the gap E at the close contact portion S once. In addition, when the synthetic resin light guide plate D is cooled and shrunk, the gap E is released by the tensile force of the tension-adhesive function member T.

As described above, the expansion and absorption function of absorbing the thermal expansion of the synthetic resin light guide plate D in the entire metal frame body F can be exhibited, thereby preventing distortion of the acrylic plate, which is the synthetic resin light guide plate D, and the like.

With the above structure, the light guide plate unit U is very easy to assemble and disassemble, the manufacturing cost is low, and it is technically and cost effective.

For example, even when the synthetic resin light guide plate D, the metal frame body F, etc. of the light guide plate unit U are damaged, the damaged parts can be easily replaced.

(2nd embodiment)

6 is a sectional perspective view showing a second embodiment of the present invention.

In the light guide plate unit U of this embodiment, the heat radiation fin H is provided on the lower surface side of the metal frame body F. As shown in FIG. By providing the heat dissipation fin H on the lower surface side in this way, the width of the metal frame body F can be reduced, and as a result, the planar area can be made small when the light guide plate U is seen from the vertical plane.

Even if the heat dissipation fin H is provided on the lower surface side of the metal frame body F, the tensile adhesion function member T is built in the heat dissipation fin groove H1 formed by the heat dissipation fin H, and thus the light guide plate unit U There is no problem of protruding outward.

The rest of the configuration is the same as in the first embodiment.

(Third embodiment)

7 is a perspective view showing a third embodiment of the present invention.

In the present embodiment, the light guide plate U is formed into a regular hexagon.

In the present embodiment, the angle of the corner portion C in the rectangular light guide plate unit U in the first embodiment is 90 degrees.

However, the expansion absorbing function obtained by the metal frame body F and the tensile adhesion function member T acts similarly to 1st Embodiment, and there is no problem.

In the case where the light guide plate unit U is a regular hexagon, when combined, the light guide plate unit U has a hexagonal shape as a whole, thereby obtaining a visually beautiful feature. The rest of the configuration is the same as in the first embodiment.

As mentioned above, although this invention was demonstrated to the embodiment as an example, this invention is not limited only to the embodiment unless a summary is changed, and various modified examples are possible.

For example, the combination of the light guide plate unit U is not limited to a combination of triangles, squares, and the like in a planar shape, and may be combined three-dimensionally.

In addition, the shape and setting position of the heat dissipation fin H may also be variously adopted as long as the heat dissipation function can be exhibited.

In addition, the material of the metal frame F is not necessarily limited to aluminum, and copper, iron, other metal materials, or non-metal materials with good thermal conductivity can be used.

The heat dissipation fins H may be integral with the metal frame F or may be separately attached later.

In addition, the light guide plate D is not limited to an acrylic plate, and other resin material plates may be employed, as well as a reflective plate or the like may be assembled to the light guide plate D, or a reinforcing material may be used in combination.

In the case where the light guide plate unit U is large in size up to several meters, the reinforcing member is assembled to the frame member J, or the elastic member which pulls the frame members together for reinforcement in the middle part of the frame member J or the like. Of course it can also be used as an auxiliary.

The light guide plate unit (U) of the present invention has a feature that is easy to handle by combining the synthetic resin light guide plate (D) and the constituent members attached thereto in advance.

In particular, by providing the heat dissipation function and the expansion absorption function to the metal frame body F, the assembly, disassembly and construction are convenient.

As long as these characteristics are applied, it can be widely used not only for lighting of a store etc. but also for indoor and outdoor guide boards and signboards, decoration of amusement parks, meters for automobiles, etc.

U: Light guide plate unit D: Synthetic resin light guide plate
D1: cross section F: metal frame
J: Frame material E: Spacing
T: tension contact function member T1: corner member
T2: elastic member T3: locking portion
T4: Bend C: Corner
G: Fixed part S: Closed part
L: light source part LA: base part
L1: High Brightness LED L3: Top
L2: electrical wiring H: heat dissipation fin
H1: heat radiation fin groove K: coupling part
B: bow-shaped leaf spring

Claims (10)

A light guide plate unit having a synthetic light guide plate and a metal frame body supporting the synthetic light guide plate around the light guide plate, the light guide unit having a light source unit disposed on an end face of the synthetic light guide plate, wherein the light source unit is pressed against the end surface of the synthetic light guide plate.
The light source part embedded in the coupling portion of the metal frame body is integrally pressed against the metal frame body on the end face of the synthetic resin light guide plate, and the light guide plate is slidably coupled to the coupling part installed inside the metal frame body to form a metal frame body. Each frame member is formed in close contact with each other so as to be detachable, and the light guide plate unit, characterized in that the metal frame body is in close contact with each other so as to be separated by the tension contact function member in the close contact portion.
delete The method of claim 1,
A light guide plate unit comprising: a plurality of heat dissipation fins formed in the metal frame body, and a tensile adhesion function member is built in the heat dissipation fin grooves formed between the heat dissipation fins. The method of claim 1,
The tension-adhesion function member is composed of a corner member having a bent portion bent at the same angle as the corner portion formed by the close portion of the frame body, and an elastic member attached to both ends of the corner member. The light guide plate unit is formed, wherein the frame member is provided with a fixing portion for holding the locking portion. The method of claim 4, wherein
The light guide plate unit, characterized in that the elastic member is a coil spring. delete delete delete The method of claim 1,
The light guide unit is a light guide plate unit, characterized in that the upper surface is a high-brightness LED is formed in a planar shape so as to be in surface contact with the end surface of the synthetic resin light guide plate. A light guide plate unit having a synthetic light guide plate and a metal frame body supporting the synthetic light guide plate around the light guide plate, the light guide unit having a light source unit disposed on an end face of the synthetic light guide plate, wherein the light source unit is pressed against the end surface of the synthetic light guide plate.
The light source part embedded in the coupling portion of the metal frame body is integrally pressed against the metal frame body on the end face of the synthetic resin light guide plate, and the light guide plate is slidably coupled to the coupling part installed inside the metal frame body to form a metal frame body. Each frame member is formed in close contact with each other so as to be detachable, and the metal frame body is provided with a tension contact function member on the outer side of the contact portion of the frame member constituting the tension member so that the contact portion of the frame member is spaced apart by the expansion of the light guide plate. And a pressurizing force, which is spaced apart from each other and is in close contact with the contraction of the light guide plate.

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