KR101869043B1

KR101869043B1 - Jig for cutter of light guide film

Info

Publication number: KR101869043B1
Application number: KR1020170015953A
Authority: KR
Inventors: 조광호
Original assignee: 조광호
Priority date: 2017-02-06
Filing date: 2017-02-06
Publication date: 2018-06-19

Abstract

The present invention relates to a jig for a mobile film light guide plate cutter including a plate-shaped body portion having at least one vertically penetrated polygonal assembly holes; an assembly member disposed adjacent to the inner peripheral surface of the assembly hole; and assembly member coupling means for coupling between the body portion and the assembly member, a fixed gap being formed for close insertion of the flat plate portion of the cutter between the outer peripheral surface of the assembly member and the inner peripheral surface of the assembly hole of the body portion. Accordingly, the cutter press-cutting the film light guide plate can be accurately and vertically upright and fixed. In addition, cutter deformation due to an excessive fixing force during cutter fixing can be prevented, and thus the film light guide plate can be precisely cut. The firm fixing of the cutter can be maintained even in the event of vibration or shaking during cutting. When the cutter is to be replaced, the cutter can be easily separated and replaced intactly.

Description

[0001] The present invention relates to a jig for a mobile film cutter,

In particular, the present invention relates to a jig for cutting a mobile light guide plate, and more particularly, to a jig for press cutting a film light guide plate so as to be vertically fixed on a jig accurately and vertically, and preventing a cutting knife from being deformed by an excessive fixing force The film light guiding plate can be precisely cut, and the cutting knife can be firmly fixed even in the vibration or shake that occurs during cutting. When the cutting knife is to be replaced, it is possible to easily and easily The jig for a light guide plate cutting knife according to claim 1,

In general, a mobile phone (Feature Phone), MP3 (Moving Pictures Experts Group (MPEG) -1 Audio Layer-3), a PMP (Portable Media Player), a PDA (Personal Digital Assistant) A portable mobile device such as a notebook, an ultra-mobile personal computer (UMPC), a tablet PC, a smart phone, a navigation device, a portable game device (Play Station Portable) The light emitting module to be used, specifically, the keypad module is used as a switch part for performing signal generation and various additional functions, and is capable of identifying a design key, a number key or a character key for canceling a night key or canceling a night key And a separate illumination unit is provided so that one button operation is possible.

As a conventional light emitting module, there are known an electro luminescence (EL) keypad module, a top view keypad module, and a side view keypad module.

The EL (electro luminescence) keypad module is configured such that a dome sheet, an EL sheet, and a keypad are placed on a PCB. When a keypad is pressed, a metal piece of the dome sheet and a contact terminal of the PCB are connected to each other. The keypad is uniformly illuminated.

The EL keypad module described above has advantages of being slim, high quality, uniform lighting and various colors, but it requires a large power consumption, an inverter, is relatively more reputable than an LED, has a noise And thus the reliability is inferior. In particular, an increase in production cost can not be avoided.

To overcome the problems of the above-described EL keypad module, a general top view keypad module of an indirect lighting type is composed of a dome sheet, a plurality of indirect lighting LEDs, a light guide film and a keypad on a PCB. The metal piece and the contact terminal of the PCB are brought into contact with each other so that the light emitting diode emits light when the keypad is illuminated by the light dispersion and direction change of the light guide film. However, the LED requires a large number of LEDs, .

The general side view keypad module of the indirect lighting type is substantially the same as the top view keypad module except that one or two LEDs are arranged on the side of the PCB so as to be slimmer than the top view keypad module described above.

Generally, a light guide film (LGF) is a polycarbonate film or sheet applied to a keypad or a window edge of a mobile device, and a specific pattern is formed on one side thereof to eliminate luminance unevenness and square shadow depending on the distance As a component for obtaining a planar light source of uniform brightness, a light guide film is usually stamped in the same shape and dimensions as the keypad shape and the opposite surface of the patterned surface of the light guide film unit stamped with the dimensions, A separate light diffusion film unit for obtaining a uniform and smooth surface light source is laminated and attached to a keypad unit formed on a PCB of a mobile device using a transparent adhesive film on both sides.

In a conventional film light guide plate (LIGHT GUIDE FILM), a light guide film is prepared by stamping a predetermined desired light guide pattern on one side of a polycarbonate film in a step of transferring a light guide film pattern, followed by adhering the protective film.

Then, the outer periphery of each of the light guide patterns on the light guide film is cut by an outer knife 2 fixed to a jig (not shown) as shown in Fig. 1 to form a film light guide plate 10, This is transferred onto a substrate (substrate) sheet such as polyethylene terephthalate having an adhesive layer formed on one side thereof, and the protective film is adhered thereto.

However, in the conventional method of manufacturing a film light guide plate according to the above-described conventional pressing method, the outer light knife 2 can be cut in an accurate size by keeping the state where the outer knife 2 is firmly fixed to the fixing jig. It is necessary to frequently replace the cutting knife because the sharpness of the knife can be gradually reduced depending on the frequency and the use period. At this time, there is a need to improve the structure of the jig for fixing the cutting knife so that the cutting knife can be easily replaced.

In addition, when the film light guide plate is cut, if the cutting knife is not accurately pressed vertically, the cut surface of the film light guide plate is not uniform after the press cutting operation, and transparency is lowered and the surface roughness is lowered. Therefore, It is troublesome to carry out a post-treatment process of mirror-surface processing using a diamond knife, so that it is possible to fix the cutting knife accurately and vertically, .

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problems, and it is an object of the present invention to provide a film light guide plate for preventing the cutting knife from being deformed by an excessive fixing force when fixing the cutter knife, It is possible to precisely cut the cutting knife and to keep the cutting knife firmly fixed even in the vibration or shake that occurs at the time of cutting. Especially, when the cutting knife is to be replaced, the cutting knife is easily and easily cut And it is an object of the present invention to provide a jig for a light guide plate cutting knife which can replace a knife.

The above-mentioned object is achieved by a body part 102 formed in a plate shape and having at least one polygonal assembly hole 102a vertically penetrating therethrough; An assembly member (104) disposed adjacent to an inner peripheral surface of the assembly hole (102a); A fixing gap 106 is formed between the inner circumferential surface of the assembling hole 102a of the body 102 and the outer circumferential surface of the assembling member 104 so that the flat plate portion 202 of the cutting knife 200 is tightly inserted, And an assembling member 104 for assembling the assembling member 104 and the assembling member 104. The mobile film is achieved by the jig 100 for a light guide plate cutting knife.

The coupling means of the assembly member 104 is formed in a groove structure on the inner circumference of the upper end of the assembly hole 102a and has a first opening 112a opened toward the inside of the assembly hole 102a, A plurality of first coupling grooves 112 having a screw hole 112b facing downward; A second opening portion corresponding to the upper outer peripheral edge portion of the assembling member 104 opposed to the first engaging groove 112 and opening toward the first opening portion 112a of the first engaging groove 112 A second coupling groove 114 formed on a bottom surface of the first coupling groove 114a and having a screw hole 114b formed therein; The screw hole 112b of the first engaging groove 112 and the screw hole 114b of the second engaging groove 114 are inserted simultaneously so that the first engaging groove 112 and the second engaging groove 114 are connected to each other, A coupling piece 116 formed on both sides with a through hole 116a corresponding to the coupling hole 116a; And a first fixing screw 118 fastened and fixed to the coupling piece 116.

At least one or more third openings 120a are formed in the periphery of the assembly hole 102a of the body 102 and open to the inside of the assembly hole 102a. A plurality of third coupling grooves 120 formed with screw holes 120b; A second fixing screw 122 fastened to the screw hole 120b of the third coupling groove 120 and having a nipple screw structure; The second fixing screw 122 is inserted into the lower portion of the head of the second fixing screw 122 and is pressed downward as it approaches the bottom surface of the third coupling groove 120, And a fixing O-ring 124 adapted to press the side of the flat plate portion 202 of the cutting knife 200 inserted into the O-ring.

The present invention can prevent the cutting knife from being deformed by a firm fixing force while allowing the cutting knife for press cutting the film light guide plate to be accurately and vertically standing and fixed, thereby achieving an accurate film light guide cutting operation, The cutting knife can be fixed firmly even when vibration or shaking occurs, and in particular, when the cutting knife is to be replaced, the cutting knife can be easily and easily replaced without damaging the cutting knife, The smoothness of the cut surface can be maintained when the light guide plate is press-cut, so that the transparency of the cut surface is ensured even after cutting, thereby maintaining the desired illuminance on the surface of the film light guide plate, Processing (subsequent process) is not required, Improve and increase the production volume, it has an effect to be able to minimize the error rate, etc. that can occur during mirror finishing.

1 is a view showing a state where a body part and an assembling member are separated from each other according to the present invention,
2 is a view showing a state in which the body part and the assembling member according to the present invention are disposed immediately before being assembled;
3 is a view showing a state in which a body part and an assembling member according to the present invention are coupled by a coupling piece.
4 is a view showing a state in which a cutting knife is inserted into a fixing gap in a bottom surface of a body part according to the present invention.
5 is a view showing a structure of a state in which a fixing force is strengthened by a fixing o-ring in a state where a cutting knife according to the present invention is inserted into a fixing gap.
6 is a plan view of a jig for a cutter knife for a mobile film light guide plate according to the present invention.
Fig. 7A is a cross-sectional view taken along line A-A in Fig. 6, showing a state before the fixing o-ring is expanded to the side. Fig.
Fig. 7A is a cross-sectional view taken along line A-A in Fig. 6, showing a state in which the fixing o-ring is expanded to the side. Fig.

The construction of the present invention will be described with reference to FIGS. 1 to 7B.

1, the jig 100 for a mobile film light guide plate cutting knife according to the present invention includes a body part 102, an assembling member 104, a body part 102, and an assembling member 104, And an engaging means of the assembling member 104 is provided.

As shown in the figure, the body 102 is formed of a plate having a predetermined thickness, and a plurality of assembling holes 102a formed in a square or polygonal shape are formed so as to be relatively larger than the size of the film light guide plate So that the film light guide plate is cut and formed in a state in which the cutting knife 200 is inserted into the inner peripheral surface of the assembly hole 102a so as to be closely contacted thereto.

1 and 2, the assembling member 104 is disposed to be close to the inner circumferential surface of the assembling hole 102a, and then the body portion 102 And a fixing gap 106 is formed by an interval between the inner circumferential surface or the inner circumferential surface of the assembly hole 102a of the body portion 102 and the outer circumferential surface or the outer circumferential surface of the assembly member 104 to cut the film light guide plate. So that the flat plate portion 202 of the fixing plate 200 can be inserted into the fixing gap 106.

The coupling means of the assembly member 104 for coupling the body portion 102 and the assembly member 104 while forming the fixing gap 106 between the body portion 102 and the assembly member 104, As shown in the upper surface of the body portion 102 of FIGS. 1 and 2 and the upper surface of the assembling member 104, a first coupling (not shown) is formed in the upper surface of the body portion 102, A plurality of grooves 112 are formed on the upper surface of the assembling member 104 and a second engaging groove 114 having a groove structure is formed on the upper outer circumferential edge of the assembling member 104 on the upper surface of the assembling member 104, 114 are formed symmetrically with respect to each other with the first coupling groove 112 and the fixed gap 106 therebetween.

The first coupling groove 112 is formed with a first opening 112a that opens toward the second coupling groove 114 in the assembled hole 102a, A second opening 114a is formed to communicate with the first coupling groove 112 and communicated with each other.

On the bottom surfaces of the first and second coupling grooves 112 and 114, screw holes 112b and 114b are formed, respectively.

After the body 102 and the assembling member 104 are disposed in a state of being close to each other as described above, the first and second coupling grooves 112 and 114 are engaged with each other, The first and second engaging grooves 112 and 114 are formed on both sides of the engaging piece 116 so as to correspond to the screw holes 112b and 114b formed on the bottom surfaces of the first and second engaging grooves 114 and 114, The first fixing screw 118 is inserted into the through hole 116a and the through hole 112b of the first engaging groove 112 and the second engaging groove 114 of the second engaging groove 114 are inserted into the through hole 116a, The body 102 and the assembling member 104 can be coupled with each other while the fixing gap 106 between the body 102 and the assembling member 104 is held by being fastened to the screw hole 114b .

The flat plate portion 202 of the cutting knife 200 for cutting the film light guide plate is inserted upward from the lower portion to the upper portion in the fixing gap 106 formed between the body portion 102 and the assembling member 104, An assembly groove 202a is formed in the flat plate 202 of the cutting knife 200 so that even though the upper end of the flat plate 202 of the cutting knife 200 is inserted up to the upper end of the fixing gap 106, Is inserted into the engaging piece 116, so that the engaging groove 202a is formed to have a concavo-convex structure so that the left and right rocking can be prevented.

1 and 2, when the plurality of assembly holes 102a are formed in the body 102, the plurality of assembly holes 102a are formed between one assembly hole 102a and another adjacent assembly hole 102a The second coupling grooves 114 formed in the assembling member 104 assembled after being inserted into the two side assemblies 102a are disposed at positions opposite to each other in the body 102. At this time, 1, 2, and 3, the first coupling groove 112 may be formed in the body 102, and the first coupling groove 112 may be formed in the body 102, (116) is formed in each of the second coupling grooves (114) formed symmetrically on the opposite side assembling members (104) across the body part (102) It is preferable that the first fixing screw 118 is fastened to the hole 114b.

At this time, in order to allow the coupling piece 116 to be seated in the both side second coupling grooves 114, a seating groove 102b is formed in the body part 102 formed between the side assembled holes 102a, So that the engaging piece 116 can be stably stowed without being interfered with the part 102.

The hollow portion 104a shown in the assembling member 104 is formed in order to reduce the weight of the assembling portion 104. [

4 shows a state in which the cutting knife 200 is inserted upward into the fixing gap 106 between the body part 102 and the assembling member 104 so as to be more clearly shown, When the flat plate portion 202 of the cutting knife 200 is inserted into the fixing gap 106 as shown in FIG. 4, the cutting knife 200 is inserted into the fixing gap 106 as shown in FIG. 5, As shown in FIG.

6A and 6B are plan views showing a state where the cutting knife 200 is inserted into the fixing gap 106 of the jig 100 for a mobile film light guide plate cutting knife according to the present invention, Sectional view showing a structure of a state in which the fixing o-ring 124 is in a state before being compressed and in a state in which it is compressed and expanded.

As shown in FIG. 4, at least one third opening 120a is formed in the periphery of the assembly hole 102a on the lower surface of the body 102 so as to open toward the inside of the assembly hole 102a, A plurality of third engaging grooves 120 having a threaded hole 120b are formed on a bottom surface thereof and a second securing screw 120b having a nipple screw structure is formed on the threaded hole 120b formed in the third engaging groove 120 122 can be fastened.

7A, when the fixing O-ring 124 is inserted into the second fixing screw 122, the fixing O-ring 124 is inserted into the flat plate portion 202 of the cutting knife 200 The fixing o-ring 124 is compressed downward and compressed in the lateral direction as the second fixing screw 122 is tightened and becomes closer to the bottom surface of the third coupling groove 120 7B, the side of the flat plate portion 202 of the cutting knife 200 inserted into the fixing gap 106 is pressed by the side of the fixing O-ring 124 which is inflated, so that the cutting knife 200 So that it can be resiliently fixed to the fixing gap 106.

1 and 2, when the plurality of assembly holes 102a are formed in the body 102, the plurality of assembly holes 102a are formed between one assembly hole 102a and another adjacent assembly hole 102a At least one third opening 120a is formed in the body portion 102 and a plurality of third coupling grooves 120 having a screw hole 120b formed in the bottom surface thereof are formed, The second fixing screw 122 having a nipple screw structure is fastened to the threaded hole 120b formed in the cutting knife 120, and the fixing o-ring 124 is compressed as described above, So that it can be resiliently fixed.

The above-mentioned cutting knife 200 is made of a cemented carbide. The cemented carbide is an alloy having a very high hardness produced by firing a carbide powder of a metal, and a carbonaceous (tungsten) As a bonding metal, cobalt and sintered alloy (sintered alloy), the weight ratio of cobalt is about 6%, so carbon and tungsten are dissolved in cobalt between tungsten carbide particles. Such an alloy of the structure is very hard and has excellent abrasion resistance, so it is used as a cutter (cutter) for cutting or cutting a metal product.

As described above, the mobile film light guide plate cutting knife 200 made of a cemented carbide is composed of a flat plate portion 202 and a blade portion 204 formed on the flat plate portion 202, When the film light guide plate is cut, the flat plate portion 202 is cut downward from the upper portion to the lower portion after the flat plate portion 202 is inserted from the lower portion into the gap 106. When the film light guide plate is cut downward, 106 is prevented by the engagement piece 116 and the flat plate portion 202 or the blade portion 204 is made to be fine or fine in the left and right direction by the fixing gap 106 and the fixing o- It is possible to secure a stable fixing force.

When the cutting knife 200 is to be separated from the fixing gap 106 due to a long use of the cutting knife 200 and the sharpness of the blade 204 is reduced, So that the fixing knife 200 can be easily detached and replaced when the fixing O-ring 124 is restored to a circular shape and the fixing force can be released naturally.

100: Jig for mobile film cutting board
102: body part 102a:
102b: seating groove 104: assembly member
104a: hollow portion 106: fixing gap
112: first coupling groove 112a: first opening
112b: screw thread of the first coupling groove
114: second engaging groove 114a: second opening
114b: screw thread of the second coupling groove
116: Coupling piece 116a: Through hole
118: First set screw
120: third coupling groove 120a: third opening
120b: screw thread of the third coupling groove
122: second fixing screw 124: fixing o-ring
200: Cutting knife 202:
202a: Assembly groove 204:

Claims

A body part 102 formed in a plate shape and having at least one polygonal assembly hole 102a vertically penetrating therethrough;
An assembly member (104) disposed adjacent to an inner peripheral surface of the assembly hole (102a);
A fixing gap 106 is formed between the inner circumferential surface of the assembling hole 102a of the body 102 and the outer circumferential surface of the assembling member 104 so that the flat plate portion 202 of the cutting knife 200 is tightly inserted, And an assembling member 104 for engaging the assembling member 104;
The engaging means of the assembling member (104)
A first opening 112a is formed in the peripheral edge of the upper end of the assembly hole 102a and opened to the inside of the assembly hole 102a. (112);
A second opening portion corresponding to the upper outer peripheral edge portion of the assembling member 104 opposed to the first engaging groove 112 and opening toward the first opening portion 112a of the first engaging groove 112 A second coupling groove 114 formed on a bottom surface thereof with a screw hole toward the lower side;
The screw hole 112b of the first engaging groove 112 and the screw hole 114b of the second engaging groove 114 are inserted simultaneously so that the first engaging groove 112 and the second engaging groove 114 are connected to each other, A coupling piece 116 having a through hole 116a corresponding to the coupling hole 116a;
And a first fixing screw (118) fastened and fixed to the coupling piece (116).

delete

The method according to claim 1,
At least one third opening 120a is formed in the periphery of the assembly hole 102a of the body part 102 and is opened to the inside of the assembly hole 102a. A plurality of third coupling grooves 120 formed;
A second fixing screw 122 fastened to the screw hole of the third coupling groove 120 and having a nipple screw structure;
The second fixing screw 122 is inserted into the lower portion of the head of the second fixing screw 122 and is pressed downward as it approaches the bottom surface of the third coupling groove 120, Further comprising a fixing o-ring (124) for pressing the side of the flat plate portion (202) of the cutting knife (200) inserted into the jig.