EP2114574B1 - Door for a paper shredder - Google Patents

Description

The invention relates to a door for a shredder, for closing an interior of the same, which is provided within a housing and below a cutting mechanism of the shredder for receiving a collecting container for the shredded material.

Document shredders for the comminution of data carrier material in the form of sheet-shaped documents, CD's, microfilms, floppy disks and similar materials are known in a wide variety of designs and performance classes.

Paper shredders of the lower performance class usually have a collection container, often called trash or drip tray, which closes in the inserted state at the same time the receiving opening in the shredder's housing so that no reaching into the cutting unit or parts of the cutting unit can be done. These collectors also interact with safety switches, the Prevent starting up of the cutting unit when the collecting container is removed.

The two narrow end faces of the side walls of the shredder housing and the front surface of the catch tray form the front face of the shredder.

In shredders of the middle and upper power class, the housing according to the forces occurring as well as due to the size of the cutting units are designed to be much more stable than shredders in the lower performance class. These housings are usually made of wood.
The removal opening for inserting and removing the collecting container, this may be a collecting container or a mounted on a frame collecting bag or collecting bag is closed with a door. To remove the collection container or a collection bag, the door is opened, whereby a reaching in to the cutting would be possible. When opening the door, a safety switch is simultaneously activated, which prevents operation of the shredder.
These doors are usually also made of wood, mainly from pressboard and the like material.

So that the work result as well as the level of the collecting container can be observed during operation of the shredder, a viewing window is provided in the doors.

In addition to the impact and shock susceptibility of such wooden or wood composites existing doors in addition to the cost of non-harmful adhesives and adhesives, the mass of such doors is disadvantageous, especially for handling during manufacture and assembly and for the transport weight, so the transport costs ,

Therefore, the object of the invention is to develop a door for a document shredder, which is inexpensive both in terms of material and manufacturing costs and the transport costs and also has a high stability.

For the purposes of the present invention, shredder means a device for shredding data carrier material, which may be sheet-form documents, compact discs, microfilms, floppy disks and similar materials.

In this context, it is both from the European patent EP 0818861 A1 as well as from the US patent US 5894706 known to assemble such a door of an inner and an outer door leaf, which have a recess in the central region, and in this recess - in one case between the two door leaves, in the other case outside on one of the door leaves - to attach a flat disc of transparent material.

The object is achieved by a door for a shredder with the features of claim 1. The subordinate claims 2 to 13 show developments and advantageous embodiments of the invention.

The door according to the invention for a shredder, for closing at least one open on one side, provided below a cutting unit in the shredder housing or the like device interior, has a window and hinges for attachment to the housing and is in a new construction of two profile parts, wherein at least one of the profile parts made of translucent material, composed, preferably of an outer door leaf and an inner door leaf. Both parts of the door are non-positively and / or positively connected with each other.
Profile parts in the sense of the invention are parts in which, starting from the plane of their main surface, one or more partial surfaces, surface sections or surface strips of the main surface are arranged at an angle to the latter, wherein these regions which are fleeing from the main plane are angled one or more times or arcuately guided , in one or in succession in several spatial directions, which may also be in opposite directions.
These profile parts are preferably manufactured as injection-molded parts and preferably made of plastic.
The interior serves to receive a collecting container, in which the crushed material emerging from the cutting mechanism is collected.
By correspondingly arranged to each other arranged portions of the two door leaves results in the assembled state of Advantage that the body of the door is a very stable in itself unit, especially at the top, at the point of force attack when opening and closing the door.

The connection between the two door parts is made by screwing, gluing or welding, preferably the frictional connection between the two parts of the door is punctual.
The advantage of a screw connection is that in addition to a positive connection still one, the rigidity of the door increasing, non-positive, but releasable connection can be achieved.

The two door leaves are preferably made of plastic, so that the door has a low weight.

In a special new design, the outer door leaf has a profiled, substantially 90 ° from a front surface of the same angled edge, said profiled edge is encircling on three sides of the door leaf, preferably at its left, top and right section. In the outer door leaf is directed from the lower portion of the body inward, preferably symmetrical to the imaginary vertical plane of symmetry, a conical, preferably arched or trapezoidal recess provided, which preferably extends up into the upper region of the outer door leaf and passes through the front surface and the opposite surface.

This recess has laterally rising longitudinal limbs that end up in an upper transverse leg. The longitudinal legs of the conical, preferably arched recess preferably have a U-shaped profiled edge.
The inner door leaf has a profiled edge substantially angled 90 ° from an outer surface thereof, this profiled edge being encircling on three sides of the inner door leaf, preferably also on its left, upper and right sections.
Corresponding to the conical, preferably arched or trapezoidal recess in the outer door leaf is arranged in the inner door leaf, starting from the outer surface, a door inwardly directed indentation. The front edges on the indentation have profiled webs which are formed corresponding to the U-shaped profiled edges of the longitudinal limbs, resulting in a further stiffening / stability of the door.

In addition, further recesses or bulges are provided in the outer surface of the inner door leaf, in which preferably accessories for the shredder, such as maintenance oil, collection bag u. Ä., Can be accommodated.

At least one of the profile parts, preferably the inner door leaf, in particular its recess, consists of at least translucent, preferably made of transparent material, whereby always have a look inside the document shredder and at the shredded material.

The above-described redesigned door results in significant advantages for the logistics as well as in terms of costs for production (production, assembly, surface treatment), warehousing and transport, together with the required transport volume, to the wholesaler, retailer or end user.

Fig. 1a u. Fig. 1b

das äußere Türblatt der neuen erfindungsgemäßen Tür eines Aktenvernichters;

Fig. 2a u. Fig. 2b

das innere Türblatt der neuen Tür;

Fig. 3a bis Fig. 3f

die neue Tür in zusammenmontiertem Zustand, in verschiedenen Ansichten und Details;

Fig. 3g

ein weiteres Detail bezüglich dem Formschluss zwischen dem äußeren und dem inneren Türblatt

und

Fig. 4

eine Teilansicht auf den Korpus eines Aktenvernichters an den die neue Tür anschlagbar ist.

The invention will be explained below with reference to an embodiment schematically shown in the drawings and in detail. Showing:

Fig. 1a u. Fig. 1b

the outer door leaf of the new door of a shredder according to the invention;

Fig. 2a u. Fig. 2b

the inner door leaf of the new door;

Fig. 3a to Fig. 3f

the new door in assembled condition, in different views and details;

Fig. 3g

another detail regarding the positive connection between the outer and the inner door leaf

and

Fig. 4

a partial view of the body of a shredder to which the new door is malleable.

An embodiment of the new, composed of two moldings door 1 is in FIG. 3 shown with frontal view of the inner outer surface 12 and in 3d figure in a perspective view this. In FIG. 3a is the door 1 in side view and in FIG. 3b shown in plan view. The two mold parts, the outer door leaf 2 and the inner door leaf 10, have various projections, bends, recesses, grooves or slots and webs. These are arranged on both parts 2, 10 corresponding to each other so that in the assembled state, the aforementioned portions of the two door leaves 2 and 10 give a support structure, so that the body of the door 1 is a very stable in itself unit, especially in the upper area, at the force attack point when opening and closing the door.

The outer 2 and the inner 10 door leaf are preferably made of plastic, so that the door is very light.
Preferably, the inner door leaf 10, in particular in its central region, made of a translucent, preferably made of transparent material.

In the following, first the basis of the FIGS. 1a and 1b the design of the outer door leaf 2 of this embodiment explained in more detail. The outer Door leaf 2 is a substantially rectangular shaped body. The outer edge is angled in the region of the left portion 3c, the upper portion 3a and the right portion 3b directed from a body base by 90 ° inwards. This edge runs circumferentially from the lower edge of the left portion 3c over the upper portion down to the lower edge of the right portion 3b. The above-mentioned directions left, right and above arise by looking at the front surface of a document shredder, on which such a door is arranged.

The lower portion 3d of the outer edge 3 has no angulation. This lower section 3d is, symmetrically, provided from below with an arch-shaped recess 5, which preferably extends up into the upper region of the outer door leaf 2. This arched recess 5 is respectively formed on the left and right by a longitudinal leg 5a, which is directed upwardly sideways, and is bounded by an upper transverse leg 5b in the vertical extension. The longitudinal legs 5a extend, in this embodiment, slightly arcuate. The front edge 5 c of the longitudinal leg 5 a has a U-shaped shape, wherein the open side of the "U" respectively in the direction of the outer edge of the outer door leaf 2 shows. In this provided in each longitudinal leg 5a groove engages a corresponding opposite of the inner door leaf 10, as will be described later.

With a little distance from the longitudinal legs 5a and the upper transverse leg 5b and the edges 5c extends slightly in the body slightly recessed an inner peripheral edge 6, which protrudes from the inner side 8 of the outer front surface 4 approximately at right angles. Between the inner circumferential edge 6 and the outer circumferential edge 3 a plurality of substantially transversely and / or obliquely arranged webs 7 are provided for further stiffening of the door first

In the FIGS. 2a and 2b is shown in frontal view and perspective view of the inner door leaf 10. The base of this inner door leaf 10 is a substantially rectangular thin plate with an outer surface 12. This outer surface 12 shows in its position of use to the interior 20 of the shredder 18 and abuts the end faces 24 of the housing 19 of the shredder 18, see also in FIG. 4 ,

The inner door leaf 10 has a likewise in the upper, right and left sections 11a, 11b and 11c circumferential edge 11 which is directed from the outer surface 12 with a bend, preferably by 90 °, body inward. The lower portion 11d of the rim 11 does not have such a bend. At the upper portion 11a of the rim 11, there is also provided a ridge 12a projecting upward in the plane of the outer surface 12; which rests in the assembled state of the door at the upper portion 3 a of the edge 3 of the outer door leaf 2. Likewise, in the assembled state of the door, respectively upper portions 3a, 11a, the right portions 3b, 11b, and the left portions 3c, 11c to form fit. These edge portions are at least partially positively connected to each other, by latching, gluing or welding. Corresponding to the arch-shaped recess 5 in the outer door leaf 2, a correspondingly extending indentation 14 is provided on the inner door leaf 10 symmetrically to its plane of symmetry. In the assembled state of the door, this indentation 14 forms a niche 14a in the body of the door 1.

Corresponding to the course of the longitudinal limbs 5a of the arched recess 5, front edges 16 are provided on the indentation 14. These edges 16 have corresponding to the U-shaped profile edges 5c of the outer door leaf 2 a hook-shaped edge profile. When mounting the door, the outer door leaf 2 and the inner door leaf 10 are inserted into each other by relative movement to each other, wherein the profiled edge 16 hooks in the profiled edge 5c and runs along this until the mounting end position is reached. To further increase the stability of the indentation 14 is formed so that a three-sided circumferential support surface 15 is formed. This support surface 15 is in the assembled state of the door on the inner circumferential edge 6 of the arched recess 5 a form-fitting manner.

As mentioned above, the fully assembled door 1 is in frontal view from the inside in FIG. 3 shown. In the outer surface 12 of the inner door leaf 10 further recesses or bulges are also provided, in which accessories for the shredder, such as maintenance oil, collection bags, etc., can be accommodated.

At least the front surface of the indentation 14, but preferably the entire inner door leaf 10 are made of an at least translucent, preferably transparent material, in particular plastic, so that always a look in the interior 20 and on the crushed material can be addressed.
In the FIG. 3a the fully assembled door is shown in a side view from the right. In the FIG. 3b in plan view with respect to the representation in FIG. 3 on average DD. Here, the position of the outer surface 12 and the front surface 4 and the position of the niche formed by the recess 14 14a in the door 1 can be seen.

The positioning of the edge regions 3a, 11a and 12a of the outer door leaf 2 and the inner door leaf 10 to each other are in sectional view in FIG. 3 shown, the detail "B" after FIG. 3a ,

In the FIG. 3g is the detail "F" from the representation after the FIG. 3b , the special profiled design of the edge 5c of the longitudinal legs 5a of the arched recess 5 as well as the special profiled design of the front edge 16 of the inner Door leaf 10 shown in detail. In addition, the positive engagement of the inner circumferential edge 6 of the outer door leaf 2 and the three-sided circumferential support surface 15 of the inner door leaf 10 can be seen in this illustration.

Further details of the positive engagement of the profiled sections of the outer door leaf 2 and the inner door leaf 10 are also in the details "E" to FIG. 3b and detail "C" after FIG. 3a in the Figures 3f and 3e shown. In FIG. 3f is the positive connection of the lateral edges 3b of the outer door leaf with the right angled portion 11b of the inner door leaf 10, which forms a bend on the outer surface 12 to see.
In the FIG. 3e is in sectional view and detail view of the lower portion of the door according to detail "C" after FIG. 3a shown. The lower portion 3d of the outer door leaf 2 forms the conclusion of the front surface 4 of the outer door leaf 2, without bending. In addition, the position of webs 7 with respect to the inside 13 of the outer surface 12 of the inner door leaf 10 can still be seen in this illustration.

In order to achieve in addition to a positive connection nor the rigidity of the door increasing frictional, but releasable connection to the in the FIG. 3 or 3d points provided with points on the outer surface 12 (not numbered) screwed connections provided.

A higher rigidity of the assembled door can also be achieved that at certain points or over larger surface portions, the form-fitting abutting surfaces of the outer door leaf 2 and the inner door leaf 10 are glued together or welded together.

In the FIG. 4 is schematically shown a shredder to which the above-described new door application applies. A document shredder 18 with a housing 19 has an interior space 20, in which a collection bag 21 for receiving shredded material is arranged on a holder 23 mounted in guides 23. A door 1 according to the invention is fixed with hinges 25 on the housing 19 and shown here in the open position. In the closed position, the door 1 will abut with its outer surface 12 of the inner door leaf 10 together with the outer edge 3 of the outer door leaf 2 at one or more end faces 24 of the housing 19 and close the interior 20, so that the shredder without endangering the operator in Operation can be. Not shown is a self-evident safety switch that will shut down the drive of the shredder when opening the door 1, so when sharing the interior 20 together with access to the cutting unit.
The material / paper task has the reference number 26.

The invention is not limited to the embodiment shown, but in the context of the invention often variable. In particular, in the choice of material for the production of the outer door leaf 2 and the inner door leaf 10 and in the design of contour and design, there are no limits. The choice of suitable material will be able to be oriented and adapted to the task of the shredder concerned or to the development of new materials in the relevant field.

So is in the FIG. 3b 9a and 9b show that, for example, in the upper region of the outer door leaf 2, the edge region of the outer upper edge 3a has a horizontally directed convex curvature 9a and a body-directed concave curvature 9b. This ensures that the distance between the door and operator with respect to the upper door area in the foot area is greater, so that the operator can approach closer to the insertion slot or the material support without the operator with his feet damaged or the lower door area prevents the paper task, resulting in a worn by the operator / operator tie, chain or z. B. scarf approaching the Materialeinfuhrschlitz dangerously.

References directory:

1

door

2

outer door leaf

3

outer edge of pos. 2

3a

upper section

3b

right section

3c

left section

3d

lower section

4

Front surface of Pos. 2

5

arched recess in pos. 2

5a

Longitudinal leg (sideways rising at pos. 5)

5b

upper transverse leg

5c

Edge (at pos. 5a)

6

inner circumferential edge (at pos. 5)

7

Stege

8th

Inside of Pos. 4

9a

horizontal, convex curvature of pos. 4

9b

concave, vertical curvature of pos. 4

10

inner door leaf

11

edge

11a

upper section

11b

right section

11c

left section

11d

lower section

12

outer surface

12a

web

13

inside

14

indentation

14a

niche

15

three-sided circumferential wing

16

front edge at pos. 14

17

Recessed grip (on both sides)

18

paper shredder

19

casing

20

inner space

21

collection bag

22

bracket

23

guides

24

face

25

hinges

26

paper task

Claims (13)

1. A door for a file shredder (18) for closing at least one interior space (20) that is open on one side and provided below a cutting tool in a housing of the file shredder (18), comprising:

   - at least one viewing window, and

   - hinges (25) for attachment at the housing (19),

   - wherein the door (1) is assembled from two profile elements (2, 10),

   characterized in that at least one of the profile elements (2, 10) is made from a translucent material.
2. The door according to claim 1,
   characterized in that
   the profile elements (2, 10) include an outer door leaf (2) and an inner door leaf (10).
3. The door according to claim 2,
   characterized in that
   the outer door leaf (2) includes a rim (3) that is provided with a profile and that is angled essentially at 90° with respect to a front surface (4) of the outer door leaf (2), wherein the profile rim (3) is arranged circumferentially at three sides of the door leaf (2), advantageously at a left, upper and right section (3c, 3a and 3b) of the outer door leaf (2).
4. The door according to claim 2 or 3,
   characterized in that
   a conical, advantageously arc shaped or trapezoid recess (5) is provided in the outer door leaf (2) oriented inward towards the body from the lower section (3d) and advantageously arranged symmetrical to an imaginary vertical plane of symmetry wherein the recess (5) advantageously extends into an upper portion of the outer door leaf (2).
5. The door according to claim 4,
   characterized in that
   the conical advantageously arc shaped or trapezoid recess (5) includes lateral upward extending arms (5a) which terminate on top in an upper transversal arm (5b).
6. The door according to claim 5,
   characterized in that the longitudinal arms (5a) of the conical, advantageously arc shaped recess (5) include a U-shaped edge (5c) that is provided with a profile.
7. The door air according to claim 2,
   characterized in that
   the inner door leaf (10) includes a rim (11) that includes a profile and that extends essentially at an angle of 90° from an outer surface (12) of the inner door leaf (10), wherein the profiled rim (11) extends circumferentially at three sides of the inner door leaf (10), advantageously at its left, upper and right section (11c, 11a, and 11b).
8. The door according to claim 5, 6 or 7,
   characterized in that
   corresponding to the conical advantageously arc shaped or trapezoid recess (5) an indentation (14) oriented towards an inside of the door is arranged in the outer door leaf (2) and originates from the outer surface (12) in the inner door leaf (10).
9. The door according to claim 6 and 8,
   characterized in that
   the front edges (16) include profile bars at the indentation (14) wherein the profile bars are shaped so that they correspond to the U-shaped profiled edges (5c) of the longitudinal arms (5a).
10. The door according to at least one of the claims 1 through 9,
    characterized in that
    at least one of the profile elements is made from a transparent material, in particular the inner door leaf (10), in particular the indentation (14) of the inner door leaf (10).
11. The door according to at least one of the claims 2 through 10,
    characterized in that
    both elements (2 and 10) of the door (1) are connected with each other in a friction locking and/or form locking manner.
12. The door according to at least one of the claims 2 - 11,
    characterized in that
    the connection of both door elements is provided by screws, glue and/or a weld.
13. The door according to claim 11 or 12,
    characterized in that
    the friction locking connection between both elements of the door (1) is provided punctiform.

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