EP0233895B1 - Device for printing spherical objects and the like - Google Patents
Device for printing spherical objects and the like Download PDFInfo
- Publication number
- EP0233895B1 EP0233895B1 EP86904310A EP86904310A EP0233895B1 EP 0233895 B1 EP0233895 B1 EP 0233895B1 EP 86904310 A EP86904310 A EP 86904310A EP 86904310 A EP86904310 A EP 86904310A EP 0233895 B1 EP0233895 B1 EP 0233895B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stamp
- printing
- design
- hemispherical
- printed
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/30—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces of essentially spherical, or part-spherical, articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/001—Pad printing apparatus or machines
Definitions
- the invention relates to a device for printing on three-dimensional bodies, and more particularly but not exclusively for printing on spherical or part-spherical bodies, and to a method of printing using such a device.
- the design solution adopted with said stamps is to make them from solid rubber or similar synthetic materials.
- This solid form means that, when a spherical object is to be stamped, the adaption of the stamp to the shape of the object takes place solely through elastic deformation of the material of which is is made.
- the surface area which the stamp can cover is very limited, being confined to small areas.
- the stamp since the stamp has to be flat in order to be able to take the corresponding inked design from a flat master surface and, since it is solid, adaption of the same to the spherical object takes place solely through elastic deformation of the material of which the stamp is made; therefore, it can only reach very small surface areas.
- a device for printing three-dimensional objects comprising a hollow flexible stamp for transferring an inked design between a flat master surface from which said design is to be picked up and a three-dimensional object which is to be printed which stamp, when pressed on to the master is capable of deformation to provide a flattened surface which allows said pick-up to take place and, when pressed on to a three-dimensional object to be printed, is capable of deformation to envelope the object over a surface area which receives the inked design, characterised in that the stamp is substantially hemispherical and is capable of concave deformation to envelope the object to be printed over a surface area of substantially a hemisphere following flattened deformation over substantially the same area for pick-up of the design.
- said flexible hollow stamp takes the form of a thin hemispherical hood which is fixed round its rim to a plate held by mechanical means which perform the appropriate raising and lowering movements onto the object to be printed.
- the hollow interior of the stamp and its inherent flexibility enable it to conform to any solid object and also to the flat surface of the master where the ink is collected.
- the stamp of the present invention is lowered onto the inked master design disposed on a flat surface and is pressed against it, it is flattened against the master and picks up the inked design correctly.
- the hollow stamp recovers its initial shape as a hemisphere and, when it is placed on the spherical object to be printed and is pressed against it, its hollow form and flexibility again enable it to adapt to the spherical form of said object, surrounding it practically as a hemisphere and printing the corresponding design onto this surface.
- the hollow flexible stamp can be filled with some material which, by enabling it to deform precisely, provides it with the proper consistency and, moreover assists it to recover its form elastically after each deformation.
- said filling material will preferably be a fluid.
- the object being printed may be spherical or any other three-dimensional shape as the invention is valid for printing the concave and the convex parts of an object where it is also suitable for printing hemispherical and semicylindrical interiors and the like.
- each stamp (1) see Figure 1
- each stamp (1) is constituted by a body in the form of a hollow flexible hemispherical hood (2) which is fixed to a support structure (3) which in turn is fixed to a rod (4) which may be connected to a conventional means which provides the necessary translation, raising and lowering movements.
- the hood (2) consists of a laminar hollow elastic element which, starting from its convex external shape, can adapt to any object through the effect of the pressure exerted by the rod (4), conforming its external surface to that of the object to be printed and, consequently, transferring the inked design to an object equivalent in area to a hemisphere in one step.
- the object (5) to be printed which in this case is a spherical object such as a balloon, is held under the stamp (1) by means of fastening device or support (6).
- the printing process is as follows:
- each stamp (1) moves until it is located on the flat master template which incorporates the inked design which is to be printed. In this position, the stamp (1) descends, applying pressure, and, since the stamp (1) is hollow and flexible, it deforms and, as it is flattened against the flat template, it adopts the shape of a flattened hemisphere which, at its pole, provides a flat surface constituting a good recipient for the inked design incorporated on the template.
- the stamp (1) is then lowered and again, being a hollow flexible body, it deforms and envelopes the object (5) as shown in Figure 2.
- i1 prints the design which it had taken from the flat template on to this object (5) and, through the envelopment of the object (5), said printing can cover practically half of this object (5), i.e. a hemisphere.
- the stamp (1) may incorporate a filling material in its hollow interior, which material hepls to provide the body (2) with required resiliency and helps it recover its initial shape elastically.
- said filling material will preferably be a fluid, either gaseous or liquid, which will leave the body (2) when the latter deforms and return to the inside of the body automatically when the deformation ceases.
- this filling material could be a solid or particulate having sufficient elasticity without in any way altering the essence of the invention.
- stamping line for spherical objects (5) groups of four stamps (1) will be arranged for the four basic colours of the colour combinations and these four stamps (1) will produce the corresponding final design which will cover half an object (5), either through successive operation of the same or through simultaneous operation and successive feeding of the objects (5).
- the description which is given of one possible practical embodiment is not intended to be taken as limiting since the objects (5) to be printed may have any known three-dimensional shape. These objects (5) can have a convex or else concave form in the external configuration oi their surface to be printed or even be flat.
Landscapes
- Printing Methods (AREA)
- Decoration By Transfer Pictures (AREA)
Abstract
Description
- The invention relates to a device for printing on three-dimensional bodies, and more particularly but not exclusively for printing on spherical or part-spherical bodies, and to a method of printing using such a device.
- Until now, characters, designs, colours and the like have been printed on spherical objects and the like by the same method as when printing on flat surfaces by methods, including stamping, which use an intermediate element or stamp which picks up an inked design from a master and transfers it to the object to be decorated or printed.
- At present, the design solution adopted with said stamps is to make them from solid rubber or similar synthetic materials. This solid form means that, when a spherical object is to be stamped, the adaption of the stamp to the shape of the object takes place solely through elastic deformation of the material of which is is made. Thus the surface area which the stamp can cover is very limited, being confined to small areas. In fact, since the stamp has to be flat in order to be able to take the corresponding inked design from a flat master surface and, since it is solid, adaption of the same to the spherical object takes place solely through elastic deformation of the material of which the stamp is made; therefore, it can only reach very small surface areas.
- Solutions designed to solve this problem while retaining the solid design of the stamp and giving it certain moulded shapes corresponding to those of the item to be decorated by printing have not been very successful on account of the complexity of producing such stamps and the means required for the initial transfer of the inked design onto them.
- Other proposals have been made. In DE-A-2 855 210 a solid stamp of soft rubber- silicone is used to take colour from a flat plate and transfer it to a pressure pad which transfers the colour to a ball. Three steps are involved. In GB-A-848 076, a hollow cup-shaped stamp is used to transfer a design to a curved surface. In both cases, there is no possibility of printing over a large surface area of substantially a hemisphere.
- This is the situation which currently exists, for example, in the synthetic plastics balloon and ball manufacturing industry; these items are either decorated with very limited designs as regards the surface area covered or else recourse is had to successive stamping operations, successively turning the spherical object being stamped, making the printing operation slow and expensive.
- At all events, up to now, no process had been found which allows a large surface area of substantially a hemisphere to be stamped in a single operation.
- According to the present invention, this result is achieved by a device for printing three-dimensional objects, comprising a hollow flexible stamp for transferring an inked design between a flat master surface from which said design is to be picked up and a three-dimensional object which is to be printed which stamp, when pressed on to the master is capable of deformation to provide a flattened surface which allows said pick-up to take place and, when pressed on to a three-dimensional object to be printed, is capable of deformation to envelope the object over a surface area which receives the inked design, characterised in that the stamp is substantially hemispherical and is capable of concave deformation to envelope the object to be printed over a surface area of substantially a hemisphere following flattened deformation over substantially the same area for pick-up of the design.
- According to one embodiment, said flexible hollow stamp takes the form of a thin hemispherical hood which is fixed round its rim to a plate held by mechanical means which perform the appropriate raising and lowering movements onto the object to be printed. The hollow interior of the stamp and its inherent flexibility enable it to conform to any solid object and also to the flat surface of the master where the ink is collected. In fact, when the stamp of the present invention is lowered onto the inked master design disposed on a flat surface and is pressed against it, it is flattened against the master and picks up the inked design correctly.
- When this inked design is separated from the flat master, the hollow stamp recovers its initial shape as a hemisphere and, when it is placed on the spherical object to be printed and is pressed against it, its hollow form and flexibility again enable it to adapt to the spherical form of said object, surrounding it practically as a hemisphere and printing the corresponding design onto this surface.
- Thus, in a non-limiting example of the printing of balloons or balls, practically half a balloon can be stamped in a single operation and it is only necessary to turn it through one hundred and eighty degrees. Alternatively opposed stamping devices can be employed.
- If desired the hollow flexible stamp can be filled with some material which, by enabling it to deform precisely, provides it with the proper consistency and, moreover assists it to recover its form elastically after each deformation. In this connection, said filling material will preferably be a fluid.
- The above description has been provided in order to facilitate an understanding of the invention in the form of one possible example in which the objects to be printed are spherical; obviously, in the invention, the essential point is the hollow flexible design of the stamp since this has to adopt the shape of a spherical hood of greater or lesser dimensions or any other similar shape, with a working surface which is preferably rounded. Likewise, the object being printed may be spherical or any other three-dimensional shape as the invention is valid for printing the concave and the convex parts of an object where it is also suitable for printing hemispherical and semicylindrical interiors and the like.
- The invention is diagrammatically illustrated, by way of example, in the accompanying drawings in which:
- Figure 1 is an elevation of a pair of stamps which are ready to operate on respective spherical objects;
- Figure 2 is a view similar to that of Figure 1 but with the stamps in contact with the objects to be printed;
- Figure 3 is a section of the stamp taken on the line III-III of Figure 1, and
- Figure 4 is a section of the stamp taken on the line IV-IV of Figure 1.
-
- 1. - Stamp
- 2. - Hemispherical hollow stamp body
- 3. - Stamp support structure
- 4. - Rod
- 5. - Object to be printed
- 6. - Object support.
- The object of this invention is a method of and device for printing spherical objects and the like starting from a general printing line which includes the corresponding elements for metering and preparation of inked surfaces and also stamps which are the means of transfer between said inked surfaces and the object to be decorated. According to the invention, each stamp (1), see Figure 1, is constituted by a body in the form of a hollow flexible hemispherical hood (2) which is fixed to a support structure (3) which in turn is fixed to a rod (4) which may be connected to a conventional means which provides the necessary translation, raising and lowering movements.
- As can be seen in Figures 3 and 4, the hood (2) consists of a laminar hollow elastic element which, starting from its convex external shape, can adapt to any object through the effect of the pressure exerted by the rod (4), conforming its external surface to that of the object to be printed and, consequently, transferring the inked design to an object equivalent in area to a hemisphere in one step.
- As can be seen in Figure 1, the object (5) to be printed, which in this case is a spherical object such as a balloon, is held under the stamp (1) by means of fastening device or support (6).
- The printing process, according to the present invention is as follows:
- Firstly, each stamp (1) moves until it is located on the flat master template which incorporates the inked design which is to be printed. In this position, the stamp (1) descends, applying pressure, and, since the stamp (1) is hollow and flexible, it deforms and, as it is flattened against the flat template, it adopts the shape of a flattened hemisphere which, at its pole, provides a flat surface constituting a good recipient for the inked design incorporated on the template.
- Once the inked design has been transferred to the stamp (1), the latter rises and moves until it is over the object to be printed (5) as shown in Figure 1.
- The stamp (1) is then lowered and again, being a hollow flexible body, it deforms and envelopes the object (5) as shown in Figure 2. In this way, i1 prints the design which it had taken from the flat template on to this object (5) and, through the envelopment of the object (5), said printing can cover practically half of this object (5), i.e. a hemisphere.
- If desired the stamp (1) may incorporate a filling material in its hollow interior, which material hepls to provide the body (2) with required resiliency and helps it recover its initial shape elastically. In this connection, said filling material will preferably be a fluid, either gaseous or liquid, which will leave the body (2) when the latter deforms and return to the inside of the body automatically when the deformation ceases. Thus when several stamps (1) operate in synchronism, the fluid from some of the interiors of some of the stamps can pass into others in closed circuits, i.e. while some stamps (1) are being deformed, the others are recovering their initial configuration.
- Obviously, this filling material could be a solid or particulate having sufficient elasticity without in any way altering the essence of the invention.
- In one possible practical embodiment of a stamping line for spherical objects (5), groups of four stamps (1) will be arranged for the four basic colours of the colour combinations and these four stamps (1) will produce the corresponding final design which will cover half an object (5), either through successive operation of the same or through simultaneous operation and successive feeding of the objects (5).
- It will be sufficient to turn this object (5) through one hundred and eighty degrees or else to arrange groups of stamps (1) in positions opposite one another in order to cover practically all the object (5) in one stamping operation.
- Obviously, the description which is given of one possible practical embodiment is not intended to be taken as limiting since the objects (5) to be printed may have any known three-dimensional shape. These objects (5) can have a convex or else concave form in the external configuration oi their surface to be printed or even be flat.
Claims (6)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES545755 | 1985-07-31 | ||
ES545755A ES8703346A1 (en) | 1985-07-31 | 1985-07-31 | Device for printing spherical objects and the like. |
PCT/GB1986/000426 WO1987000796A1 (en) | 1985-07-31 | 1986-07-21 | Device for printing spherical objects and the like |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0233895A1 EP0233895A1 (en) | 1987-09-02 |
EP0233895B1 true EP0233895B1 (en) | 1990-01-10 |
EP0233895B2 EP0233895B2 (en) | 1995-12-27 |
Family
ID=8489658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86904310A Expired - Lifetime EP0233895B2 (en) | 1985-07-31 | 1986-07-21 | Device for printing spherical objects and the like |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0233895B2 (en) |
DE (1) | DE3668136D1 (en) |
ES (1) | ES8703346A1 (en) |
WO (1) | WO1987000796A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2730392B1 (en) * | 1995-02-15 | 1997-03-14 | Bourgogne Grasset | GAME TOKEN AND METHOD FOR MARKING SUCH A TOKEN |
ES2123374B1 (en) * | 1995-05-11 | 1999-08-16 | Unice Sa | PRINTING SYSTEM OF BALLS WITH DOUBLE INDEPENDENT VISION, INTERIOR AND EXTERIOR AND BALL SO OBTAINED. |
FR2761297B1 (en) | 1997-03-28 | 1999-05-21 | Bourgogne Grasset | METHOD FOR TAMPOGRAPHIC MARKING OF A GAME TOKEN AND DEVICE FOR IMPLEMENTING THE METHOD |
BE1012658A6 (en) * | 1999-04-08 | 2001-02-06 | Printing Internat | DEVICE with pad for printing spherical objects. |
FR2825661B1 (en) | 2001-06-06 | 2006-11-24 | Bourgogne Grasset | INSTALLATION DEVICE FOR TOKEN AND PADING INSTALLATIONS INCORPORATING SUCH DEVICES |
FR2842456B1 (en) | 2002-07-22 | 2004-12-24 | Bourgogne Grasset | METHOD FOR TAMPOGRAPHY AND SUBLIMATION MARKING AND SUBLIMABLE TAMPOGRAPHY INKS |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB848076A (en) * | 1956-01-18 | 1960-09-14 | Service Eng Ltd | Improvements in devices for off-set printing |
DE2855210A1 (en) * | 1978-12-21 | 1980-07-03 | Wilfried Philipp | Printing mechanism for curved surface - has cushion with rubber membrane secured by elastic support ring |
-
1985
- 1985-07-31 ES ES545755A patent/ES8703346A1/en not_active Expired
-
1986
- 1986-07-21 WO PCT/GB1986/000426 patent/WO1987000796A1/en active IP Right Grant
- 1986-07-21 EP EP86904310A patent/EP0233895B2/en not_active Expired - Lifetime
- 1986-07-21 DE DE8686904310T patent/DE3668136D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1987000796A1 (en) | 1987-02-12 |
ES545755A0 (en) | 1987-03-01 |
ES8703346A1 (en) | 1987-03-01 |
EP0233895A1 (en) | 1987-09-02 |
EP0233895B2 (en) | 1995-12-27 |
DE3668136D1 (en) | 1990-02-15 |
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