The present invention comprises a device for raising or lowering a role in relation to a laminator table for the application of patterns and/or text to a flat surface.
Current laminator tables are produced with a traverse under which a roller, for moving over the work area, is mounted. The roller and the traverse are connected to raising/lowering devices on each side of the table. This traverse also serves as a counter for the pressure which the roller shall exert towards the work piece.
This traverse is, however, in the way of access to the work pieces and complicates many of the necessary work tasks.
Such a traverse is primarily used two achieve a rigid construction, where the rollers maintain the parallelism when moved across the work area.
Solutions for laminator tables without such a traverse have recently been described. Such solutions are applicable for laminator tables of restricted widths. However, at larger widths, and longer rollers, the increased torque which is exerted at the mounting of the roller will require a disproportionately large/powerful construction of the raising/lowering devices on each side of the table.
The roller of current laminator tables has a fixed, penetrating shaft which is rotatably connected with the raising/lowering devices on each side of the table.
The mounting of said shaft to the raising/lowering devices in an adequately stable manner is also contributing to necessitate a disproportionately large/powerful construction of said devices.
The problem with current raising/lowering devices is that the controls for raising and lowering of the traverse is a round switch located on top of each end of the traverse. The problem with this is that when one leans over the table during the work process, it is easy to accidentally press the switch.
NO 315014 describes a laminator table which is representative for the known state of the art. The table comprises a roller which is mounted on a traverse which extends across the table. In this solution, the raising/lowering device is in the form of a swivel wheel for a purely mechanical raising and lowering of the rollers.
The problem is that this solution is cumbersome since the wheel takes unnecessary long time to use. Further, a wheel at each end is in the way when you have to lean over the table in connection with the lamination process.
The present invention, as described in the set of claims, comprises a solution to the problems and drawbacks mentioned above.
The solution comprises a rounded inwardly facing top console on each side of the roller. This makes the work easier and it is easier to access the material surrounding the rollers while providing a more comfortable contact against the body when one leans over the table.
Further the invention comprises a handle located on top of the console that is also facing inward. This makes controlling the rollers and console much easier.
At the end of the handle it is located an activation switch that activates the raising and lowering of the rollers and console. The advantage with placing a switch here is that it prevents accidental activation of the raising/lowering mechanism when working.
In addition, the console top has a sliding track that makes installation and turning of a bracket easy for the user of the table. In other current solutions, these brackets are fixed and only on one side of the roller.
Further the present invention has a device for measuring distances.
a shows raising/lowering mechanism seen from the side in the raised position.
b shows raising/lowering mechanism seen from the side in the lowered position.
To achieve a precise parallel movement of the rollers, they are connected to the raising/lowering devices 1 by means of a cable/pulley system 3, 5. One end of the wire 3 is connected to an attachment 4 on a first raising/lowering device. The second end of the wire is, through three pulleys 5, attached to an attachment on the other raising/lowering device. Horizontal movement of the first, or second, raising/lowering device will cause a corresponding movement of the corresponding raising/lowering device due to the movement of the wire.
The activation switch is shielded so it is not triggered unintentionally. The shielding may be that the location of the activation switch prevents accidental activation. Examples on such shielding may be, as described above, that the activation switch is located on the short side of the end 2, or the switch can be located underneath the handle. Alternatively, the switch can be protected by a cover. A further solution is to have a locking switch that locks the activation switch and that must be activated before it is possible to activate the activation switch. Alternatively, it may be in the form of two switches or points that must be activated simultaneously. Yet another alternative is two contact surfaces that must be touched simultaneously.
Underneath the handle the console top is located. The upper end of the console top is rounded in end that is furthest away from the table top. At the opposite end, the end closest to the table top, the rollers are connected. In the console top, it is a device for raising and lowering of the rollers. The raising and lowering is done by a lifting cylinder. The activation switch controls the lifting cylinder. The range of the lifting cylinder is controlled by a vertical bar. The bar is at its top most point connected to the piston of the lifting cylinder. The bar proceeding through a holder in the form of an open cylinder. The holder is connected to the side of the lifting cylinder. Inside the holder it is situated a spring. The bar has a stopper at each end. At its top most point the bar stops against the spring in the cylinder. The spring ensures that the rollers rest in a fixed distance above the table top.
The solutions described above are intended only as examples and there may be many different solutions of curved handles and rounded console tops.
Number | Date | Country | Kind |
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20110696 | May 2011 | NO | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/NO2012/050087 | 5/10/2012 | WO | 00 | 11/4/2013 |