Manufacturing container or tube from paper; or other manufacturi – Bending – Folding
Patent
1996-12-13
1998-12-01
Lavinder, Jack W.
Manufacturing container or tube from paper; or other manufacturi
Bending
Folding
493480, B31B 126
Patent
active
058429638
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an aid made one piece for folding paper of a standard size, in particular stationary.
Such an aid is described in the European patent application 0 523 977. In this case the aid is a device consisting of three rectangular members, whereby a middle member is connected along the two long sides with the long side of another member by means of hinge means. For folding a sheet of paper the sheet of paper is placed with its short side against the first hinge, which is situated between the first and middle member, the first member is turned onto the middle member, whereby a third part of the sheet of paper is positioned between the first and the middle member, and then the third member is turned onto the first member, forming a first fold in the sheet of paper. To form the second fold the paper is folded back onto the third member. To this end a fourth member may be provided being hinged to the middle member at the same long side as the first member.
The disadvantages of such an aid are that because of the thickness of a member the creases are not sharp, the presence of a staple can cause problems with folding and the folded paper has to be taken out of the device. For the latter purpose the device must either be folded out again, or the sheet of paper has to be pulled out sideways from the device which in that case is not ready for further use. Finally, the hinges of the aid are weak spots; they may tear.
It is the object of the present invention to provide an aid as described in the preamble, which aid produces sharply creased paper, is not limited to one standard size of paper and which allows paper also to be folded quickly double or in four. It is further the object of the invention to provide the possibility to fold paper in three in two different ways. Finally, it is the object of the invention to provide a robust aid in which the removal of the paper is not impeded.
To this end the aid according to the invention is characterized in that the aid comprises a base plate provided with position checks to allow the paper to be folded to be held in position, whereby the position checks may engage two adjacent sides of the paper, while the aid is provided with a folding mark which is visible next to the long side of the paper when the paper is placed in the fixed position, and the width of the base plate at the level of the fold to be formed is at least the same as that of the paper to be folded.
The folding aid according to the invention makes it possible to obtain sharp creases in one go and folded paper can be picked up without any impediment. Also, the device has no parts which are weak and sensitive to wear.
Folding paper by hand without any aids is known, but more often than not this gives less good results, especially when paper has to be folded in three. To facilitate folding paper in three it is known to provide the paper with a mark. Such a mark mars the paper and is therefore not applied to stationary used by management directors. Of course, it is possible to printing technically make the mark less conspicuous but then it becomes a greater strain on the eyes when folding the paper.
As with the folding aid according to the invention the folding mark is not on the paper itself, it may be very conspicuous, thus facilitating folding as the eyes are less strained. The position checks allow part of the folding actions to be carried out by touch thus giving an excellent folding result. At the same time folding is accomplished faster than without any aid.
From the German patent specification No. 234448 an aid is known which is provided with position checks for the positioning of paper, as well as with sprung strips around which the paper is folded. In order to allow more than one sheet of paper to be folded at once, the height of these strips is adjustable. The device must also be adjusted when changing from folding paper in three to folding it double. As with European patent application 0 523 977 this device has the disadvantage that it is not possible to obtain sharp creases
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patent: 3092379 (1963-06-01), Collier
patent: 4421500 (1983-12-01), Smith
patent: 5057070 (1991-10-01), Pidcock
patent: 5348526 (1994-09-01), Feygin
patent: 5378222 (1995-01-01), Weber
patent: 5380265 (1995-01-01), Giovinazzo
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