FI109668B - Press - Google Patents

Description

1 109668

Press

The invention relates to a press, in particular a manual press of the type which can be used to press paper or the like into bundles for binding or other purposes, comprising a press body, two guide rails attached to the body, a guide bar arranged in a guide rail. and means for clamping the press bar against the body so that the material to be bonded is trapped between the body and the press bar.

With the proliferation of different copying and offset machines, the need for paper binding in offices has increased considerably. However, the presses available on the market are quite complex and slow and expensive to build. The difficulty of operating 15 is also a disadvantage in many presses, requiring the turning of several parts and other operations to achieve the desired result.

In well-known bundles of paper clips! the clamping action is most often accomplished by screws connected to the ohm | 20 into the press bar moving between the sections. Another known structure is a form (·. ''): Provides the guide rods as such with screws having a nut mounted on the press stud.

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U.S. Patent No. 3,229,619 discloses a hydraulic press which, as such, is a phenomenon foreign to the manual press of the present invention.

• '* *: According to the reference, there are two beams which, in turn, provide a stepwise movement of the beams along the guides. Both. ·· *. the beams are lockable to the controls by similar hydraulically driven cufflinks. through.

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The object of the invention is to provide a press that is easier to use and, above all, cheaper. To accomplish this, the press according to the invention is characterized by what is stated in the appended claims.

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In the following, the invention will be explained in detail with reference to the accompanying drawings, in which Figure 1 illustrates one preferred embodiment of the invention from the side, Figure 2 shows a compression detail of the inventive press and Figure 3 shows an automatic locking detail for use in the inventive 10.

Figure 1 is thus a simplified and schematic view of a side view of a press 1 according to the invention. Reference numeral 2 denotes a press table or frame on which a stack of paper or other pressable material 15 is located under operating conditions.

Two guides 3, 4 are attached to the body 2, which may be for example metal pins of circular cross-section, threaded at the lower end and screwed into the press body with suitable threaded J 20 holes. It is clear that the guides do not need to be circular in cross-section to function; sliding parts along the guide is excellent. · :. along any form of straight guide.

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On the guides 3 and 4, a two-piece press bar 5, 6 moves. The structure of the beams: * ·. *: 25 may be such that the lower bar has a U-section • · · ”: one with U opening upwards and the upper the press bar 6, in turn, is also: U-shaped so that U opens downwards. The dimension of U in the various bars is such that, ···. for example, the upper beam 6 is so large in size that it extends around the lower beam 5 when the beams are aligned.

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In Figure 1, the beams 5 and 6 are exaggerated, but in practice the movement of the beams is suitably limited so that they are practically never completely separated. However, the beams can be completely separated for maintenance and replacement of parts. In use, the beams are further connected by 3,109,668 springs (not shown) such that the beams 5 and 6 tend to be as close to each other as possible by the action of the spring.

In order for the press to function as desired, the upper beam 6 must be lockable to the guides 3, 4 so as to provide a locked position in which the actual pressing is effected. Herein lies a great advantage of the present invention over prior art presses, since the locking is fully automatic in the present invention. It is described below.

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The following also refers to the general operation of the press. Thus, a bundle of paper or other object that needs to be compacted for some operation, such as gluing, cutting, or the like, is introduced into the clamp 7. The clamping beams 5 and 6, which are almost together (overlapping), are lowered over and bundled. one another. As soon as the beams begin to disengage, the automatic locking device 9 changes to a position where it locks the bar 6 onto the guides 3 and 4. This means that when the handle 8 is further turned and the bar 6 is prevented from moving, which tends to move downwardly in Fig. 1 and squeeze the bundle into a slot 7 which is reduced

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* »·. Once the above step is reached, suitable action can be taken on the pressed bundle, after which the press is released, with the beams 5 and 6 * ·, · 25 aligned with the spring to disengage the automatic locking) · and the beams being raised higher to remove the hook * · · 7. Locking the upper guides can be achieved by turning the handle.

• · · · «. Figure 2 illustrates one way of effecting movement between the beams 5 and 6. Thus, I * * '30 in Figure 2 shows the outer surfaces of the beams 5 and 6 drawn by a simple line. The upper beam 6 is secured to its inner surface in a suitable manner, for example by welding a piece 83 with a bevelled bottom end. Also, the oblique body 84 is fixedly attached to the lower end of the spindle 82 having the actual handle portion 81 at its upper end. The upper surface of the lower beam has suitable supports 4 109668 86 which rely on a very strong flat spring 85. As the handle is rotated, the oblique surfaces of the parts 83 and 84 are increasingly in a position where they inevitably differ from each other thereby pushing the beams apart. Since the upper beam 6 is at this point firmly attached to the conductors 3 and 4, only the lower beam 5 can move 5 downwardly to compress any object or material beneath it.

It will be appreciated that many different methods known in the art, including various screw-based ways or lever systems, can be used to separate the beams 5 and 6, and the embodiment is not critical to the invention.

Figures 3a and 3b show one way of providing automatic locking of the beam 6 to the guides 3 and 4. Here again, it should be noted that the version shown in the manner in which the corresponding locking is achieved in numerous ways is only one example. Figure 15 3a illustrates a position in which the lock is unlocked and Figure 3b illustrates a position in which the beam 6 is locked in the guide.

. .φ The embodiment shown is based on a bracket 91 or a set of brackets provided with a hole that is not very tight to the guide 3. When you are | The transverse direction of the guide with respect to the guide has no effect on the motion of the guide. However, when turning the jig 91 to a skewed position, in a known manner ·. the parts are locked together. According to the invention, the automatic locking is achieved by providing the beam 6 with a suitable lug 92 having a hole 93 for passing through a spindle 93 with a suitable cross member 94 having a second edge of the bracket 91 between the forks 96.

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The spring 95 pulls the assembly of parts 93 and 94 together at all times towards the beam 5, whereby the bracket 91 is inclined and thus locks the beam 6 in the guide 3. Now '. however, the spindle 93 is dimensioned such that, when the beams 5 and 6 are brought into position 30 in FIG. 3a as close as possible to each other, the spindle 93 hits, shortly before its extreme position against the beam 5 and moves higher to release the bracket 91 from its oblique position. Then the beams 5 and 6 can be moved freely by the guides. However, when the compression is initiated, the beams initially differ slightly from each other, again moving to the locked position shown in Figure 3b and the compression of the beam 5 to the bundle of paper or other object below.

A very great advantage of the invention over any known press is that it is very easy to use and can be operated completely, if desired, with one hand. This is because the locking is automatic and there is no need to attach the ends of the beam separately with a screw device. Thus, the only action that is required in addition to pressing is moving the beams.

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Claims (4)

109668 A hand-operated press, for example for pressing sheet-like materials for the following operations, comprising a press body, 5 parallel guides (3, 4) mounted on the body, a press bar (5) and an auxiliary beam (6) arranged to move on the guides. 8) for pressing the press bar (5) towards the frame with the guides (9) supported by the guides (9) so that the material to be compressed remains trapped between the frame and the press bar, characterized in that the means (9) are of the type ) 10 automatically to the guides in other situations except when the beams (5, 6) are as close as possible to each other. Press according to Claim 1, characterized in that the device (9) has a plate (91) extending around the guide (3, 4) for the purpose of tilting the guide (15) to prevent movement between the beam (6) and the guide in at least one direction. . Press according to Claim 2, characterized in that the means (9) comprises: ·. a member (93) which, upon importation, engages the bar (5) to unlock. > ♦ .i 20 A press according to any one of the preceding claims, characterized in that; the clamp comprises two guides (3, 4) attached to the frame (2), movable therewith and spring-bound to the clamping beam (5) and the auxiliary beam (6), an automatic locking device (9) associated with the beam (6) and an eccentric , lever or similarly acting clamping means (e.g., 8). - «· t · t I • I« »» I ·. »> · •» t I I I I • - V f Patentkrav 109668