EP2701863B1 - Production de lettres profilées à l'aide de profils - Google Patents

Production de lettres profilées à l'aide de profils Download PDF

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Publication number
EP2701863B1
EP2701863B1 EP12777372.9A EP12777372A EP2701863B1 EP 2701863 B1 EP2701863 B1 EP 2701863B1 EP 12777372 A EP12777372 A EP 12777372A EP 2701863 B1 EP2701863 B1 EP 2701863B1
Authority
EP
European Patent Office
Prior art keywords
profile
letter box
channel letter
top plate
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP12777372.9A
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German (de)
English (en)
Other versions
EP2701863A4 (fr
EP2701863A1 (fr
Inventor
Kyong-Chan Lim
Mike Adams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEOUL LASER DIEBOARD CO Ltd
Original Assignee
SEOUL LASER DIEBOARD CO Ltd
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Publication date
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Publication of EP2701863A1 publication Critical patent/EP2701863A1/fr
Publication of EP2701863A4 publication Critical patent/EP2701863A4/fr
Application granted granted Critical
Publication of EP2701863B1 publication Critical patent/EP2701863B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/16—Folding; Pleating
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
    • G09F7/16—Letters, numerals, or other symbols adapted for permanent fixing to a support
    • G09F7/165—Letters, numerals, or other symbols adapted for permanent fixing to a support obtained by a treatment of the support

Definitions

  • the present invention relates to a method for generating channel letters using profiles , and to a storage medium storing a computer program for executing such a method.
  • FIG. 1 shows a conventional machine 1 for folding a metal strip or rule 10 of a flat type into a predetermined shape.
  • the structure and operation of a typical conventional machine is described in Korean Patent Registration No. 10-0233335, filed November 20, 1996 ; Korean Patent Registration No. 10-388889, filed April 3, 1999 ; U.S. Patent No. 5,787,750, filed June 21, 1996 ; and other related patents, all assigned to the same assignee as the present application.
  • the conventional folding machine 1 shown in FIG. 1 can be used mostly for folding flat strip or rule 10.
  • a new design is desirable.
  • Certain embodiments as disclosed herein provide for forming a channel letter box using a profile.
  • a method of forming a channel letter box using a profile according to claim 1 is disclosed.
  • a non-transitory storage medium storing a computer program for forming a channel letter box using a profile according to claim 9 is disclosed.
  • conventional folding machines have structural difficulties in folding metal rules (or strips) of shapes that are not flat.
  • the conventional folding machine shown in FIG. 1 would have difficulty folding metal rule 110 that has protruding ribs or tabs 110a and 110b, which protrude out of one side of the metal rule at top and bottom ends, as shown in FIG. 2 , for example.
  • the metal rule (or other rigid material) of the shape illustrated in FIG. 2 can be used to make channel letters for sign boards.
  • the material that is used to make channel letters, as shown in FIG. 2 is sometimes referred to as "profile".
  • the profile is usually made of metallic material but can be made of aluminum, other rigid/semi-rigid material, or combination of both. Accordingly, the term "profile” is used throughout this disclosure to mean board or strip having ribs or tabs, and is made of metallic and/or other rigid/semi-rigid material.
  • the protruding rib 110b that protrudes out at the bottom end is used to insert or place a front panel once the metal rule 110 has been folded into a desired shape or letter.
  • the protruding rib 110a that protrudes out at the top end can be used to insert or place a back panel once the metal rule 110 has been folded into a desired shape or letter.
  • FIG. 3 illustrates a folding machine 2 including a profile supply unit 90, a profile feeding path 30, a cutting unit 20, and a profile folding unit 101 in accordance with one embodiment of the present invention.
  • the cutting unit 20 is provided near the profile feeding path 30 to cut a portion of the protruding ribs 110a and 110b in an angle to facilitate folding of the profile.
  • the folding machine 2 of FIG. 3 is configured to fold the profile having protruding ribs 110a and 110b protruding out of one side of the metal rule at top and bottom ends, as shown in FIG. 2 .
  • FIG. 4 shows a profile 110 having protruding ribs 110a and 110b.
  • This profile 110 is fed into the folding machine 2 through a profile supply unit 90, and is transferred through the profile feeding path 30 in the direction shown in FIG. 3 . While the profile 110 is being transferred through the profile feeding path 30, a portion of the protruding ribs 110a and 110b is cut in an angle by the cutting unit 20 to facilitate the folding of the profile 110. Once the profile 110 is properly cut by the cutting unit 20, the profile folding unit 101 folds the cut profile 110.
  • FIG. 4 shows the portion (see Part B) of the protruding ribs 110a and 110b cut in a predetermined shape on both sides of the folding line (see Line A).
  • the cutting unit 20 in anticipation of the profile 110 being folded along Line A, provides two "V” cuts on each side of Line A and one "V” cut centered at Line A, for a total of five "V” cuts.
  • cuts in this embodiment are described as five "V” cuts, any shape and/or any number of cuts can be made on the ribs to facilitate the folding process.
  • five "V” cuts can provide easy folding of the profile 110 into approximately 300-degree angle (see angle C in FIG. 5 ).
  • less or more number of cuts can provide easy folding of the profile 110 into angles less than or greater than 300 degrees.
  • the cut shape can be made in "U” shape or any other appropriate shape rather than a "V" shape.
  • the size of the V cut can be controlled to determine the angle of the fold.
  • the cutting portion (Part B) of the profile 110 is shown in detail in FIG. 4A .
  • two cuts 112 are made on the left side of Line A.
  • Another cut 114 is made centered at Line A.
  • two more cuts 116 are made on the right side of Line A, as shown.
  • scratch lines or cut lines 118 are made along the center of the cuts 112, 114, 116 to further facilitate the folding of the profile 110.
  • the scratch lines 118 are made carefully on the same side of the profile as the protruding ribs 110a and 110b so that profile 110 can be folded along those lines without cutting the profile 110 at those lines.
  • the scratch lines 118 make tiny ridges on the surface of the profile 110.
  • the depth of the ridges made by the scratch lines 118 is approximately one-third of the thickness of the profile. This leaves approximately two-thirds of the thickness of the profile for easier folding with completely cutting the profile.
  • the V cuts are made on both ribs 110a and 110b so that the tip of the V shape cuts from the open edge 150 all the way to the closed edge 120 of the ribs 110a and 110b, and can penetrate slightly further into the profile to match with the tiny ridges made by the scratch lines 118.
  • the cuts made on the rib are angled so that the open edge 150 has a larger angle than the closed edge 120.
  • FIG. 5 shows one example of the desired fold shape of the profile 110 after being cut in the cutting process described above with respect to FIG. 4 and FIG. 4A , and folded along Line A for angle C.
  • the illustrated embodiment of FIG. 5 shows that the profile 110 can be easily folded into a desired angle because of the cuts made in the ribs 110a and 110b and the surface of the profile 110.
  • any shape of channel letters can be easily produced using profiles.
  • FIG. 6 shows an exploded view of the cutting unit 20 in accordance with one embodiment of the present invention.
  • FIG. 7 shows a perspective view of the cutting unit 20 with a cutter 70 in an engaged position.
  • FIG. 8 shows another perspective view of the cutting unit 20 with a cover 79 over the cutter 70 and a profile 110 in position for cutting.
  • the cutting unit 20 includes a frame 60 coupled to the profile feeding path 30, wherein the frame 60 and the profile feeding path 30 form a slit 200 through which a profile with protruding ribs can be fed.
  • the cutting unit 20 also includes a fixing plate 50 which forms a plate for attaching other parts of the cutting unit 20. Also, a bottom plate 63 is fixed to the bottom end of the fixing plate 50.
  • the frame 60 is provided with an opening 61 to allow a cutter 70 to move forward and backward (along Z axis) through the opening 61 to make cuts (similar to cuts 112, 114, 116) in the ribs 110a and 110b of a profile 110.
  • the shape of the opening 61 also allows the cutter 70 to move up and down (along Y axis) to make scratch lines (similar to scratch lines 118). However, it is understood that the cutter movement forward and backward along Z axis can provide cuts in the ribs or make scratch line, and that the cutter movement up and down along Y axis can also provide cuts in the ribs or make scratch lines.
  • the shape of the cutter 70 is configured so that it makes a V-shape cut in the ribs.
  • cutters of other shapes can be configured to cut other shapes such as a U-shape cut.
  • a Y-axis slide rail 41 is provided on the fixing plate 50 along the Y-axis direction, and a moving plate 40 is attached to the Y-axis slide rail 41, which moves the moving plate 40 up and down along Y-axis.
  • a screw driving motor 80 is coupled to the moving plate 40 to drive a vertical axis screw 81 which is threaded into the moving plate 40.
  • the vertical axis screw 81 is rotated by the driving motor 80 in a direction parallel to the Y-axis slide rail 41.
  • the lower end of the vertical axis screw 81 is configured to rest on top of the bottom plate 63. Since the screw driving motor 80 and the vertical axis screw 81 are coupled to the moving plate 40, as described above, the screw driving motor 80 drives the moving plate 40 up and down along the Y-axis direction parallel to the Y-axis slide rail 41.
  • the cutting unit 20 also includes a cutter driving motor 75, a Z-axis slide rail 42, a first cylinder 55, a support member 95, a bi-directional rod 56, a securing wheel 59, a stopper 72, and a second cylinder 77.
  • the cutter driving motor 75 drives the cutter 70, and is fixed to the sidewall of the moving plate 40 using the Z-axis slide rail 42.
  • the Z-axis slide rail 42 allows the first cylinder 55 to drive the cutter driving motor 75 forward and backward along the Z-axis direction.
  • the first cylinder 55 is coupled to the support member 95, which is in turn coupled to one side of the moving plate 40.
  • the first cylinder 55 drives the bi-directional rod 56 through its opening to move the cutter driving motor 75 along the Z-axis direction.
  • the rod 56 includes an inner rod 56a and an outer rod 56b, which are formed as a single body.
  • the inner rod 56a is coupled to the cutter driving motor 75, while the outer rod 56b passes through the support member 95 and is coupled to the securing wheel 59.
  • the stopper 72 is designed to provide a multi-level depth control in such a way that the movement of the cutter driving motor 75 along the Z-axis direction can be controlled. In the illustrated embodiment of FIG. 6 through FIG. 8 , the stopper 72 is designed for only two depth levels between the securing wheel 59 and the support member 95.
  • the stopper 72 is connected to a rod of the second cylinder 77, and is fixed to one side of the support member 95.
  • the cutter 70 is also coupled to the cutter driving motor 75 through a cutter axis rod 73.
  • the cutter 70 is configured to be driven by the cutter driving motor 75 which rotates the cutter 70 using the cutter axis rod 73.
  • a cover 79 partially covers the cutter 73, wherein uncovered side of the cutter 73 is configured to face the profile 110 through the opening 61 for cutting the profile.
  • the cover 79 is fixed to the body 74 of the cutter driving motor 75.
  • a cutting apparatus 20 for cutting a profile including: a cutter 70 configured to make cuts on the profile 110, wherein the profile 110 has a first surface 140 and a second surface, the profile 110 has at least one rib 110a and 110b on the first surface 140, and the cuts are made on the first surface 140; a first drive unit 55, 56, 42, 59, 77, 72 to drive the cutter 70 forward and backward to and from the first surface 140 of the profile 110; and a second drive unit 80, 81, 40, 41 to drive the cutter 70 up and down on the first surface 140 of the profile 110.
  • FIG. 9 through FIG. 11 illustrate a process of cutting the profile in accordance with one embodiment of the present invention.
  • FIG. 9 shows the cutting unit 20 prior to engaging the profile for cutting.
  • FIG. 10 shows the cutting unit 20 in an engaged position for cutting the profile 110.
  • FIG. 11 shows the cutting unit 20 in another engaged position for cutting the profile 110, wherein the profile 110 is moved at a predetermined interval.
  • the depth of a cut to be made on the ribs of the profiles is determined.
  • the distance by which the cutter driving motor 75, and hence the cutter 70, is to be moved forward in the Z-axis direction can be set by the positioning of the stopper 72 between the securing wheel 59 and the support member 95.
  • a second cylinder 77 is driven so that a thin front end 72a of the stopper 72 is positioned between the securing wheel 59 and the support member 95 (see FIG. 9A ) so that the cutter 70 can be moved forward deeply into the profile along the Z-axis direction.
  • a second cylinder 77 is driven so that a thick rear end 72b of the stopper 72 is positioned between the securing wheel 59 and the support member 95 (see FIG. 9B ) so that the cutter 70 can be moved forward less than when the thin front end 72a is used.
  • the second cylinder 77 should be driven only during a state where the cylinder rod 56 connected to the cutter driving motor 75 is moved in a direction opposite the Z-axis direction (i.e., the negative-Z direction) so that there is enough space along the cylinder rod 56 between the securing wheel 59 and the support member 95 for the stopper 72 to be moved in.
  • the profile 110 is then fed through the slit 200 until Line A (see FIG. 4 ) reaches a predetermined point near the opening 61, as shown in FIG. 10 .
  • the first cylinder 55 is driven to push the rod 56 toward the profile feeding path 30, thereby moving the cutter driving motor 75 and, in turn, the cutter 70 forward in the Z-axis direction.
  • the cutter 70 is then rotated and moved through the opening 61 to cut into the profile 110 for a predetermined cutting depth.
  • the screw driving motor 80 can now drive the moving plate 40 down along the Y-axis direction to move the cutter 70 down with it to make the scratch line 118 on the inside surface 140 of the profile 110 and the V cuts in the top rib 110a and the bottom rib 110b of the profile 110.
  • the cutter 70 returns to its original position as illustrated in FIG. 9 .
  • the profile 110 is moved at a predetermined interval as illustrated in FIG. 11 .
  • the cutter 70 is initially positioned at the bottom end of the profile 110 to make a cut at the bottom of the profile 110, then the screw driving motor 80 now drives the moving plate 40 up along the Y-axis direction to move the cutter 70 up with it to make the scratch line 118 on the inside surface 140 of the profile 110 and the V cuts in the bottom rib 110b and the top rib 110a of the profile 110.
  • the screw driving motor 80 now drives the moving plate 40 up along the Y-axis direction to move the cutter 70 up with it to make the scratch line 118 on the inside surface 140 of the profile 110 and the V cuts in the bottom rib 110b and the top rib 110a of the profile 110.
  • the above-described process can be summarized generally as follows: determining a cut depth of a cut to be made with a cutter on the profile; appropriately selecting and engaging a stopper to allow the cutter to cut the profile; receiving the profile for cutting; first moving the cutter forward for first cutting and/or backward for repositioning; second moving the cutter down and/or up for second cutting or repositioning; and repeating first moving and second moving according to a desired number of cuts.
  • FIG. 12 is a flowchart illustrating a process of cutting the profile in accordance with one embodiment of the present invention.
  • the depth of a cut to be made on the ribs of the profiles is determined (see Box 1202).
  • the distance by which the cutter driving motor 75, and hence the cutter 70, is to be moved forward in the Z-axis direction can be set by the positioning of the stopper 72 between the securing wheel 59 and the support member 95, at Box 1204.
  • the profile 110 is then fed through the slit 200, at Box 1206, until Line A reaches a predetermined point near the opening 61.
  • the first cylinder 55 is driven to push the rod 56 toward the profile feeding path 30, thereby moving the cutter driving motor 75 and, in turn, the cutter 70 forward in the Z-axis direction, at Box 1208.
  • the cutter 70 is then rotated and moved through the opening 61 to cut into the profile 110 for a predetermined cutting depth.
  • Certain embodiments as disclosed herein also provide for generating channel letters or shapes using profiles. Some embodiments provide for surface cutting and folding profiles to make channel letters and shapes for a sign board. In other embodiments, channel profiles are described.
  • rule is used to refer to a strip of generally flat metallic material (although other material such as plastic can be used).
  • profile is used to refer to a strip of generally more rigid metallic material (although other material such as plastic can be used) including protruding ribs or tabs as illustrated in FIGS. 14A through 14C and described below.
  • conventional folding machines have structural difficulties in folding metal rules (or strips) of shapes that are not flat.
  • the conventional folding machine shown in FIG. 1 would have difficulty folding metal strips or profiles (e.g., profiles 1400, 1420, 1440 shown in FIGS. 14A through 14C ) having protruding ribs or tabs 1410-1414, 1430-1432, 1450, which protrude out of one side of the metal strip at top, middle, and/or bottom ends, for example.
  • the profiles are much more rigid and/or thicker than the rules (i.e., flat strips)
  • the profiles are much more difficult to fold into channel letters or shapes. Therefore, a new method of folding the profile is needed.
  • FIG. 13C shows the completed letter 1340 with the flange.
  • FIG. 13D shows the bottom panel 1360 inserted into the completed letter 1350 with the flange holding the bottom panel so that the bottom panel is prevented from slipping through the letter or shape.
  • a trim or cap e.g., 1330 of FIG. 13B or 13E
  • a top panel 1370 also needs to attach to the trim 1330.
  • the attachment can be made using glue or other attaching material such as clip, nail, staple, or bond.
  • the measurements of the trim 1330 need to be slight larger than the measurements of the letter box 1372.
  • FIG. 13F shows the completed letter box 1380 with the trim 1330 placed over the box 1380.
  • the folding process usually ends up leaving a gap 1382 when it is placed over the letter box 1380, as shown in FIG. 13G .
  • the channel letter box 1380 is displayed, the light escaping through the gap 1382 gets diffused, and the channel letter may look somewhat fuzzy and not too clear or crisp from a distance.
  • the profiles of the shapes illustrated for example in FIGS. 14A through 14C can be used to make channel letters or shapes for sign boards.
  • the material used to make channel letters or shapes is sometimes referred to as "profile”.
  • the profile is usually made of metallic material (e.g., tin, bronze, copper, zinc, steel, etc.) but can be made of aluminum, other rigid and/or semi-rigid material, or combination of both.
  • the term "profile” is used throughout this disclosure to mean board or strip having ribs or tabs.
  • the profile is generated from a mold such that the profile and the ribs/tabs are formed into a single structure, which provides strength to the ribs or tabs.
  • the ribs or tabs are attached to one surface of the profile using an attachment means such as glue, solder, or bond.
  • Example dimensions of the profile include approximately 0.6 to 2.0 mm in thickness (i.e., 1670 in FIG. 16B ), 25 to 200 mm in height (i.e., 1650 in FIG. 16A ), and additional 1 to 3 mm for the rib or tab (i.e., 1660 in FIG. 16B ).
  • FIGS. 14A to 14C show three different embodiments of a profile 1400, 1420, 1440 having protruding ribs or tab 1410-1414, 1430-1432, 1450 that protrude out on one side.
  • the profile 1400 shown in FIG. 14A has three ribs 1410, 1412, 1414 one each at the top, the middle, and the bottom of one side.
  • the profile 1420 shown in FIG. 14B has two sets of ribs, one set of two ribs each at the top 1430 and the bottom 1432 of one side.
  • the profile 1440 shown in FIG. 14C has one rib 1450 at the bottom of one side.
  • Each of the three embodiments has different utilities for the rib(s).
  • the top rib 1410 can be used to hold the top plate and the bottom rib 1414 can fit into the bottom plate, as explained below.
  • the middle rib 1412 can be used for various other purposes such as inserting a middle plate for different color LEDs.
  • FIGS. 15 illustrates a roll of profile 1500 configured to be fed into a folding machine for generating channel letters or shapes.
  • the folding machine first cuts the profile into an exact length for the intended channel letter or shape.
  • the profile can be folded first and then cut at the end.
  • FIGS. 16A through 16C show surface incision (or surface engraving) in accordance with one embodiment of the present invention. Since profile 1600 is rigid and has protruding ribs 1620-1624, it would be difficult to accurately fold the profile 1600 along line 1612. In one embodiment, the rigidity comes from having the thickness 1670 (see FIG. 16B ) of the profile 1600 to be larger than the thickness of the flat strip for an average rule. In one embodiment, the thickness of an average rule is in the range of 0.2 to 1.5 mm. Accordingly, in the illustrated embodiment of FIG. 16A , surface incision is made along the line 1612 of the profile 1600 using a sawing unit 1610 of the folding machine. The term "surface incision" is used here to refer to cutting along the surface of the profile 1600 without cutting the profile 1600 into two pieces.
  • FIG. 16B shows one example of surface incision of the profile 1600 viewed along line 1630 shown in FIG. 16A .
  • the sawing unit 1610 makes an incision along the line 1612 and makes v-cut into the protruding rib 1620 and partially into the surface of the profile 1600.
  • FIG. 16C shows a close-up of the surface incision being made by the sawing unit 1610.
  • FIGS. 17 and 18 show multiple surface incisions 1710, 1810 made on the surface of the profile 1700, 1800.
  • four surface incisions 1710 are made.
  • multiple surface incisions 1810 are made to form a channel letter or shape that has curved or rounded corner(s). However, a more or less number of surface incisions can be made to vary the curvature of the rounded corner(s).
  • FIGS. 19A and 19B show front view 1910 and rear view 1920, respectively, of a top plate 1900. Since the top plate 1900 is cut to match the channel letter or shape rather than folded like the trim cover 1330 of FIGS. 13B , 13E, 13F , for example, the top plate 1900 can be formed more accurately than the trim cover 1330.
  • FIGS. 20A and 20B show a channel letter box 2000 made with a profile rather than with a rule, as shown in FIG. 13C .
  • the channel letter box 2000 includes top rib 2010 for retaining the top plate (e.g., 1900 of FIGS. 19A or 19B ) and bottom rib 2012 for fitting into a bottom plate (see FIG. 23B ).
  • middle rib 2014 can be used for various other purposes such as inserting a middle plate for different color LEDs.
  • FIG. 21A shows the process of fitting the top plate 1900 into the channel letter box 2000.
  • the fitting process may include attaching the top plate 1900 to the top rib of the channel letter box 2000 using glue or other attaching material such as clip, nail, staple, or bond.
  • FIG. 21B shows relevant portion of a profile 2100 which can be used to form the channel letter box 2000.
  • a desirable thickness 2120 of the top plate 1900 should be substantially close to the distance 2110 from the top 2112 of the profile to the top of the top rib 2114, as shown in FIG. 21B .
  • FIG. 21C if the desirable thickness 2120 of the top plate 1900 is substantially close to the distance 2110 shown in FIG.
  • the top plate 1900 will fit snuggly and tightly into the channel letter box 2000 and the front surface of the top plate 1900 will be flush with the channel letter box 2000.
  • the snug and tight fit fills any gap and prevents the light of the LEDs from escaping out and causing any blurring, smearing, or unwanted light intensity in the channel letter.
  • FIG. 21D show in detail the snug and tight fit of the top plate 1900 into the channel letter box 2000 (looking down onto the channel letter box 2000 and the top plate 1900 along the direction 2130 shown in FIG. 21C ) so that the front surface of the top plate 1900 is flush with the channel letter box 2000. That is, FIG. 21D shows the thickness 2120 of the top plate 1900 being substantially equal to the distance 2110 so that the front surface of the top plate 1900 is at the same height as the top 2112 of the profile used to form the channel letter box 2000.
  • FIG. 21E shows the channel letter box 2000 looking forward from the back such that the rear view 1920 of the top plate 1900 is shown.
  • FIG. 22A shows a base plate 2200 with an arrangement of light emitting diodes (LEDs) disposed on top of the base plate 2200 in accordance with one embodiment of the present invention. Other embodiments can have the LEDs disposed in different arrangements.
  • FIG. 22B shows the base plate 2200 with an arrangement of clips as shown.
  • FIG. 22C shows a detailed view of a clip 2210 configured with the base plate 2200 and a screw 2220 in accordance with one implementation.
  • the base plate 2200 is first attached to a flat surface where the channel letter box is desired to be placed. Although only one arrangement is shown here, many different arrangements of clips used in conjunction with different configurations of profiles are possible.
  • FIG. 23A shows a process of the channel letter box 2000 being placed over the base plate 2200 in accordance with one implementation of the present invention.
  • the channel letter box 2000 is attached to the base plate 2200 by snapping the bottom tab 2300 of the channel letter box 2000 into an open slot of the clip 2210 which is fixed to the flat surface by the screw 2220.
  • the screw 2220 and the clip 2210 also keep the base plate 2200 in place.
  • FIG. 24 shows a flowchart 2400 illustrating a method of forming a channel letter box using a profile according to one embodiment of the present invention.
  • the method includes feeding the profile, at box 2410, and determining a position where at least one surface incision is to be made, at box 2420.
  • the term position can refer to a line or a plurality of lines (as explained above regarding multiple lines for making different curvatures).
  • the surface incision is then made at the determined position, at box 2430.
  • the surface incision makes a cut along the position on one surface of the profile without cutting the profile into two pieces.
  • the surface incision makes v-cut into protruding rib(s) and partially into the one surface of the profile. This creates a ridge on the surface of the profile and makes the effective thickness of the resulting profile along the position to be close to the thickness of an average rule to make it easier to fold the profile.
  • the profile which includes at least one surface incision made on one surface, is folded, at box 2440, to form the channel letter box.
  • a top plate is cut and attached to the channel letter box, at box 2450.
  • a desirable thickness of the top plate should be substantially close to the distance from the top of the profile to the top of the top rib. In this case, the top plate will fit snuggly and tightly into the channel letter box and the front surface of the top plate will be flush with the channel letter box.
  • the assembled channel letter box is then attached to the base plate, at box 2460.
  • the channel letter box is attached to the base plate by snapping the bottom tab of the channel letter box into an open slot of a clip which is fixed to a flat surface by a screw. The screw and the clip also keep the base plate in place.

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Claims (9)

  1. Procédé de formation d'une boîte de lettre canal en utilisant un profilé, le procédé comprenant les étapes suivantes:
    déterminer une position d'incision sur une surface (140) du profilé (110) à l'endroit où au moins une incision de surface doit être pratiquée;
    inciser la surface à une position d'incision déterminée;
    plier le profilé à la position d'incision de manière à former la boîte de lettre canal,
    dans lequel le profilé comprend au moins une nervure saillante sur une surface du profilé (1412),
    caractérisé par la découpe et la fixation d'une plaque supérieure (1900) à une nervure supérieure de ladite au moins une nervure saillante, la plaque supérieure étant étroitement ajustée sur la boîte de lettre canal et présentant une épaisseur telle qu'une surface avant de la plaque supérieure soit à fleur du sommet du profilé.
  2. Procédé selon la revendication 1, comprenant en outre la fixation de la boîte de lettre canal à une plaque de base (2200).
  3. Procédé selon la revendication 2, dans lequel la fixation de la boîte de lettre canal à une plaque de base comprend l'insertion d'une nervure saillante inférieure de ladite au moins une nervure saillante dans une fente ouverte d'une attache qui est fixée à une surface plate par une vis.
  4. Procédé selon la revendication 1, dans lequel l'incision de surface comprend la formation d'une crête à la position d'incision sur ladite surface du profilé pour obtenir une épaisseur effective du profilé à la position d'incision mesurant entre 0,2 millimètre et 1,5 millimètres.
  5. Procédé selon la revendication 1, dans lequel la position d'incision comprend au moins une ligne.
  6. Procédé selon la revendication 1, dans lequel un nombre de lignes dans la position d'incision est déterminé par une courbure souhaitée du pli à la position d'incision.
  7. Procédé selon la revendication 1, dans lequel l'incision de surface comprend la formation d'une entaille le long de la position d'incision, dans lequel l'entaille est pratiquée dans ladite au moins une nervure saillante et partiellement dans ladite surface du profilé.
  8. Procédé selon la revendication 1, dans lequel la découpe et la fixation d'une plaque supérieure à la boîte de lettre canal comprend la fixation de la plaque supérieure à la nervure saillante supérieure de la boîte de lettre canal en utilisant un matériau de fixation comportant une attache.
  9. Support de stockage non transitoire stockant un programme d'ordinateur pour former une boîte de lettre canal en utilisant un profilé, le programme comprenant des instructions exécutables qui conduisent un ordinateur à:
    déterminer une position d'incision sur une surface du profilé à l'endroit où au moins une incision doit être pratiquée;
    commander une incision de surface à la position d'incision déterminée;
    commander le pliage du profilé à la position d'incision pour former la boîte de lettre canal,
    dans lequel le profilé comprend au moins une nervure saillante sur une surface du profil; et
    commander la découpe d'une plaque supérieure à attacher à une nervure supérieure de ladite au moins une nervure saillante, la plaque supérieure étant étroitement ajustée sur la boîte de lettre canal et présentant une épaisseur telle qu'une surface avant de la plaque supérieure soit à fleur du sommet du profilé.
EP12777372.9A 2011-04-27 2012-04-27 Production de lettres profilées à l'aide de profils Not-in-force EP2701863B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161479773P 2011-04-27 2011-04-27
US201161480269P 2011-04-28 2011-04-28
PCT/US2012/035605 WO2012149432A1 (fr) 2011-04-27 2012-04-27 Production de lettres profilées à l'aide de profils

Publications (3)

Publication Number Publication Date
EP2701863A1 EP2701863A1 (fr) 2014-03-05
EP2701863A4 EP2701863A4 (fr) 2015-01-21
EP2701863B1 true EP2701863B1 (fr) 2017-03-15

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CN (1) CN103813868B (fr)
WO (1) WO2012149432A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN103418837A (zh) * 2012-05-21 2013-12-04 天津智用科技有限公司 双面开槽机
EP3078429A1 (fr) * 2015-04-08 2016-10-12 Seoul Laser Dieboard System Co., Ltd Plieuse de canal et procédé de pliage de canal

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Publication number Priority date Publication date Assignee Title
US3760552A (en) * 1972-06-05 1973-09-25 P Skoetsch Sign letter construction
US5970769A (en) * 1992-03-19 1999-10-26 Laser Products, Inc. Apparatus for bending sheet stock
KR0182069B1 (ko) 1995-06-22 1999-04-01 송병준 컷팅블레이드의 절곡시스템
KR100233335B1 (ko) 1996-11-20 1999-12-01 송병준 절곡기의 절곡각도 검출장치
KR100388889B1 (ko) 1999-04-03 2003-06-25 송병준 커팅블레이드규격에 따라 교체사용이 용이한 커팅블레이드절곡장치
US20050005746A1 (en) * 2000-04-26 2005-01-13 Linenberger Randolph M. Method for preparing three-dimensional signs
JP4435035B2 (ja) * 2005-05-27 2010-03-17 聰長 占部 スチール・ルール抜型の自動曲げ機における刃材の両端切断装置
US7937865B2 (en) * 2006-03-08 2011-05-10 Intematix Corporation Light emitting sign and display surface therefor
US7441434B2 (en) 2006-05-09 2008-10-28 Sds Usa, Inc. Channel letter machine and method thereof

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Also Published As

Publication number Publication date
EP2701863A4 (fr) 2015-01-21
EP2701863A1 (fr) 2014-03-05
CN103813868A (zh) 2014-05-21
WO2012149432A1 (fr) 2012-11-01
CN103813868B (zh) 2016-01-13

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