AU601853B2 - Apparatus for cutting glass - Google Patents

Apparatus for cutting glass Download PDF

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Publication number
AU601853B2
AU601853B2 AU18040/88A AU1804088A AU601853B2 AU 601853 B2 AU601853 B2 AU 601853B2 AU 18040/88 A AU18040/88 A AU 18040/88A AU 1804088 A AU1804088 A AU 1804088A AU 601853 B2 AU601853 B2 AU 601853B2
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AU
Australia
Prior art keywords
glass
cutting
cut
pct
sheet
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.)
Ceased
Application number
AU18040/88A
Other versions
AU1804088A (en
Inventor
Alan Melville Bremner
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.)
Bremner Glass Equipment Pty Ltd
Original Assignee
Bremner Glass Equipment Pty Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bremner Glass Equipment Pty Ltd filed Critical Bremner Glass Equipment Pty Ltd
Priority to AU18040/88A priority Critical patent/AU601853B2/en
Priority claimed from PCT/AU1988/000173 external-priority patent/WO1988009775A1/en
Publication of AU1804088A publication Critical patent/AU1804088A/en
Application granted granted Critical
Publication of AU601853B2 publication Critical patent/AU601853B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Description

I.
PCT 0ITJTLiRLRt AU-AT -18040/88 El"T Pq T 0P A I NT E T P T INTERNATIONAL APPLICATION PUBLE N D RT AN RTO TRET (P"T
I
(51) International Patent Classification 4 (11I) International Publication.Number: 'NO 88/ 60 775 C03B 33/02, 33/07 Al (43) International Publication Date: D)ecember 1988 (15.12.88) (21) International Application Number: PCT/AUSS:)O 173 (81) Designated States: AT (European patent), AU, BE (European patent), CH (European patent), DE (Euro- (22) International Filing Date: 3 June 1988 (03,06,88) pean patent), FR (European patent). GB (European patent), IT (European patent), J P, LU (European patent), NL (European patent), SE (European patent), (31) Priority Application Number: PI 2320 us.
(32) Priority Date: 5 June 1987 (05.06.87) PuIblished (33) Priority Country: AU l11i international search report.
(71) Applicant ifoi all designated States except BREM- NER GLASS EQUIPMENT PTY. LTD, [AU/AU]: 400 Neerim Road, Mii-rumbeena, VIC 3163 (AU).
(72) Inventor; and MN 18 Inventor/Applicant (fi~r US 1oh: BRENER, Alan, Melville 7 Victor' Street, Mu~trrumibeena, ASRLA VIC 3163
ASRLA
(74) AgentI: EDWD. WATERS SONS: 50 Qvt":en Street, 4 JAN1989 Melburn, VI~QQ~ ~PATENT OFFICE (54) Title., APPARATUS FOR CUTTING GLASS 78 _i/7 (57) Abstract The Iit tioni dealIs wi h iti itp p aratu s antd titeth)Iod tor cutthImg 1amhImnate d glass. The g lass is delivo e d lo ta rac kt t~oa opart al onwihtegasI ob u.Toglass isptirtially cufn ta lipped oebythemoe ntr pat(3) or' the table with the aid or' means (S which may ie it hi draullkally operated ram. The other part or' the table is fl~ed. The glass once flipp d, Can be cut in a similar manner to the original uppermost sheet. The table nm a.lso tie equipped with air l1otation ffeans 110) which aids In the tm enent ol' the, glass once on the table. The thin plastics layer sandwielied between the two sheets Is cut in the usual manner ror exanmple, by applying heat thereto.
1.I i :w08s/09775 PCT/AU88/00173 -1 APPARATUS FOR CUTTING GLASS The present invention i6 concerned with apparatus for cutting glass, and more particularly laminated glass.
Laminat.-i glass is generally characterized by two sheets of glass between which is sandwiched a thin layer of plastics material that serves amongst other things as a bonding medium.
The cutting of laminated glass entails the separate cutting of the two glass sheets. There are many ways of doing this, ranging from the use of relatively sophisticated (and .hence expensive) machinery to relatively crude techniques which unfortunately suffer from being labour intensive. For instance, one item of machinery effects cutting of the two sheets on a table at the one time, one cutter arranged above the table and the other below. This machinery is very expensive and not without its problems; the lower cutting, for example, is only performed with considerable difficulty. At the crude end of the market so to speak, the laminated sheet is manually turned over or around and this, due to the overall weight of the sheet, can sometimes involve as many as four workmen to achieve that end.
It is the object of the present invention to provide apparatus for cutting laminated glass, which is simple and effective, of moderate cost and at the same time not labour intensive.
To this end, the invention according to one aspect makes provision for apparatus for cutting laminated glass comprising 1. a two-part table on which the glass is to be cut; II. a first part of the table beinq movable with respect to the second part, between a first position where it lies generally side by side with, or optionally in 'the same plane as the second part and a second position where it assumes an upright disposition with respect to the second part; means for thus effecting movement of said first part between said first and second positions; ill.
ALL
WO 88/09775 PCT/AU88/00173 -2- IV. mptans for delivering the glass to the table; V. means for sequentially cutting the uppermost and lowermost sheets of the glass; and VI. the arrangement being such that, after the uppermost sheet is cut, the first part of the table with the partially cut glass thereon is moved to said second position to facilitate delivery of the glass to the second part of the table from whence the lowermost sheet may be cut in the same or a similar manner to the uppermost sheet.
Another aspect of the *invention provides for a method of cutting laminated glass comprising i) delivering glass to a two-part table on which the glass is to be cut; ii) cutting the uppermost sheet of the glass; iii) flipping the glass over from one side to the other so that the lowermost sheet of~ the glass is presented for cutting in the same or a similar manner to the uppermost sheet; and iv) thus cutting the lowermost sheet of the glass; wherein said flipping actiofi is being performed by moving a first part of the table to an upright position with respect to a second part, thereby facilitating d,,livery of the glass to the second part in an inverted state.
In order that the invention may be more fully described and/or understood, reference is now made to a preferred embodiment as illustrated in the accompanying Figures.
Figure 1 Plan view of the apparatus according to an embodiment of the invention.
Figure 2 Front view- of the apparatus according to an embodiment of the invention.
Referring now to both Figures 1 and 2, the apparatus generally desi'gnated as I comprises a table 2 made up of two halves 4. The half 3 is movable with respect to the half 4 under the influence of a hydraul.~cally operated ram see the arrow 6 for the general extent of movement of the half 3. The half 4 is fixed.
WO 8/09775 PCT/AU88/00173 3 A rack 7 is arranged at one end adjacent the half 3 according to one system; or, in accord with another, along one side 8 of the table 2. The rack accommodates a number of precut to size pieces of laminated glass stacked in the manner best illustrated at position (the side position).
Referring next, however, to the end position E, delivery of the first piece of glass to the table half 3 is achieved simply by tipping that piece beyond the vertical and allowing it to free fall on to the half 3. To this extent, then, the delivery means in this particular embodiment is a manual means; Lut, it need not necessarily be so. Air flotation means 10 may or may not be turned on while the glass free falls onto the half 3.
Once the glass piece has been thus delivered, the first cut in the uppermost sheet is made as required. Air flotation means 10, by the use of a manifold (not shown) to switch the air flow on the table, can create a vacuum thereon to hold the glass and aid in the cutting process.
The glass is then moved to a position where the cut lies directly over a breaker bar 9, movement being facilitated with the aid of air flotation means 10 which in effect serve to lighten the weight of the glass. The first cut is then opened, the bar 9 raised to a limited extent with respect to the table 2 and pressure brought to bear on the glass to each side of the cut to complete this particular cutting step.
The next step involves rearranging the glass, if necessary, on the table half 3, whereupon that half is tilted through 90° or thereabouts at which point the glass may with ease be caused to free fall on to the other table half 4.
At this position, the non-cut sheet of glass presents itself uppermost. The glass may subsequently be moved as desired on the table as a whole, again under the favourable influence of the flotation means 10. A second S, cut may then be performed on the uppermost sheet and tnis cutting exercise completed after the manner of the first.
'j .i WO 88/09775 PCT/AU88/00173 4 All that remains thereafter is to cut the thin plastics layer sandwiched between the two sheets. This is done in conventional fashion for instance, as by applying heat thereto. A heater bar m.y be attached to the end of the table for this purpose.
It is to be appreciated that variations and/or modifications may be made to the foregoing preferred embodiment without in any way departing from the overall spirit and scope of the invention.

Claims (7)

  1. 2. The apparatus of Claim 1, wherein said first position of said first part of the table is where it lies generally in the same plane as the second part of the table.
  2. 3. The apparatus of Claim 1 or 2, wherein the arrangement being such that it allows the partially cut glass in the second position to free fall into the second part of the table,
  3. 4. The apparatus of Claims -1 to 3, wherein said firtt part of the table hat~ a breaker bar attached thereto, for the purpose of completing the cutting and supporting the partially cut glass during movement. WO 88/09775 PCT/AU88/00173 6 The apparatus of Claims 1 to 4, wherein said first and second parts of said table are in pivotal relation to one another.
  4. 6. The apparatus of Claims 1 to 5, wherein said table is equipped with air flotation means which in effect serves to lighten the weight of the glass and facilitate sliding movement of the glass on the table.
  5. 7. The apparatus of Claims 1 to 6, wherein said means for delivering the glass to the first table is effected by the free falling of the sheets of glass from a rack in close proximity to the table. co~mpnsnc or operrr-os+ c( \oer-Ios- cSs Skee
  6. 8. Method of cutting laminated glass. comprising i) delivering glass to a two-part table on which the glass is to be cut; ii) cutting the uppermost sheet of the glass; iii) flipping the glass over 3-r-omonn idm_ h Uoh.r so that the lowermost sheet of the glass is presented for cutting in the same or. a similar manner to the uppermost sheet; and iv) thus cutting the lowermost sheet of the glass; wherein said flipping action is being performed by moving a first part of the table to an upright position with respect to a second part, thereby facilitating delivery of the glass to the second part in an inverted state.
  7. 9. The method of Claim 8, wherein said delivery of the glass to the second part of the table in an inverted state is by free-falling the glass from the upright position. I /f? H^'6 P WO 8/69775 PCT/AU8/00173 7 j -7- The method of Claims 8 or 9, wherein said cutting is performed by firstly scoring the glass by manually operable means, then completing the cut by placing the scored section over a breaker bar and applying a force thereto.
AU18040/88A 1987-06-05 1988-06-03 Apparatus for cutting glass Ceased AU601853B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU18040/88A AU601853B2 (en) 1987-06-05 1988-06-03 Apparatus for cutting glass

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPI2320 1987-06-05
AUPI232087 1987-06-05
PCT/AU1988/000173 WO1988009775A1 (en) 1987-06-05 1988-06-03 Apparatus for cutting glass
AU18040/88A AU601853B2 (en) 1987-06-05 1988-06-03 Apparatus for cutting glass

Publications (2)

Publication Number Publication Date
AU1804088A AU1804088A (en) 1989-01-04
AU601853B2 true AU601853B2 (en) 1990-09-20

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Application Number Title Priority Date Filing Date
AU18040/88A Ceased AU601853B2 (en) 1987-06-05 1988-06-03 Apparatus for cutting glass

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AU (1) AU601853B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU603937B2 (en) * 1987-11-10 1990-11-29 Glass Engineering Pty. Ltd. Glass cutting apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1300659A (en) * 1960-10-14 1962-08-03 Vetreria Di Vernante Spa Tilting table for the automatic size of glass plates in direct reception from the glass-pulling machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1300659A (en) * 1960-10-14 1962-08-03 Vetreria Di Vernante Spa Tilting table for the automatic size of glass plates in direct reception from the glass-pulling machine

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AU1804088A (en) 1989-01-04

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