FR2678202A1 - DESTROYER OF DOCUMENTS. - Google Patents

Abstract

The invention relates to a document shredder comprising a fragmentation slit which is delimited between two bounding bodies of a fragmentation mechanism and which determines a slit plane and a longitudinal direction transverse to a direction of passage of the material to. fragmenting, while at least one profiled piece is provided which is intended to be fixed to a base body of the fragmentation mechanism. This document shredder is characterized by the fact that the profiled part (20, 21), seen in the longitudinal direction, comprises a profiled part (22, 23) which surrounds at a distance in the form of a stirrup the associated delimiting body (8 , 9). Application to the destruction of documents.

Description

The invention relates to a shredder

Documents

  or, respectively, elements or assemblies

  thereof, which are provided in particular to be located in the delimiting region of a traversing path traversed by the material to be fragmented before and / or after the fragmentation, as well as during this fragmentation in the region of a fragmentation slot For the purpose of the document shredder, a basic body is provided for this purpose.

  housing to receive a fragmentation mechanism

  whose delimiting bodies, such as, for example, cutting cylinders, delimit after assembly the fragmentation slot situated on the path of displacement, and on which the constituent parts mentioned above must be fixed.

  to come into contact during operation, for the essen-

  tiel, with at least parts of the material to be fragmented.

  In a direction corresponding approximately to the longitudinal direction of the fragmentation slot, it can be provided, outside of the latter, at least one profiled piece which is arranged in the vicinity of the outer periphery of at least one body of delimitation, and this, for example, in such a way that at least in insulated longitudinal parts located between its side turned towards the outer periphery of the delimiting body and this outer periphery, no other constituent element is provided,

  and that the profiled piece thus constitutes the component part

  which is closest to the outer periphery of the delimiting body By means of the profiled part, it is for example possible to counteract mutually the side walls or bearing walls of the base body, to carry or to form, respectively, scraper elements intended for at least one delimiting body, to create delimitations of the displacement path or to perform similar functions. If the profiled piece is constituted by a solid profile bar, for example rectangular or circular in cross section, it is the fact that it is possible to obtain advantageous strength properties, as well as housings for scraping bodies, but it also results in a relatively high weight, with the

  that it is at a low angle of arc, in trans-

  versale, that the individual profiled bar surrounds the body

delimitation.

  On the other hand, if the profiled piece consists of a wall section, in the sense that this profile presents

  parts which connect to each other in trans-

  Versale and whose alignment is different, as well as a wall thickness approximately constant, and that this profiled piece passes through the fragmentation slot by a profiled part, there are advantageous possibilities for a conformation of the scrapers, the piece profiled to be

  brought into contact with the delimiting bodies before the

of these.

  Another object of the invention is to create a

  document tracer or, respectively, elements constituting

  or at least one constitutive assembly intended for

  destruction of documents, which avoids the incon-

  of known conformations, which in particular allow

  to link, with a simple construction, a favorable protection of at least one delimiting body in its regions located

  outside the fragmentation slot or, respectively,

  who can assume different functions with a

  possibility of simple assembly and also possible

later, if necessary.

  According to the invention, this object is achieved by means of a document destroyer of the above kind which is characterized

  in that the profiled piece, seen in the long

  longitudinal, has a contoured section that surrounds

  in the form of stirrup the associated delimitation body.

  More specifically, a single delimiting body, or each delimiting body, may be wholly or partially surrounded each time, in at least one state

  or in all, in the region of its

  outside tower, which is not directly associated with the delimitation of the fragmentation slot, at the entrance to

  the latter and / or at the exit of the latter, by a party

  which the inner side associated with the delimiting body advantageously constitutes in cross-section parts

  which are interconnected and whose alignment is different

  rent, and can surround the delimiting body on an arc angle, relative to its axis, of more than 45, 60 B, 90 ',

  1200 or 1800 This profiled part represents advantageously

  in the associated region, protection of the body from

  delimitation on the side of it that is opposed to the split

  fragmentation, protection whose greatest distance from the delimiting body may be less than or more than half the cross-section thereof, and which is advantageously contact-free

  with the delimiting body, in a complete way for the

  sensate. At least in the operating state, the shaped part is advantageously intended to be connected to the base body in a rigid manner and without play or, respectively, being clamped in its mounted position, and it can assume

  some or all of the aforementioned functions, or

  If the fragmentation mechanism, including the base body, is surrounded by a bonnet-like casing, the boundary body remains protected in the associated region of the circumference, even when the casing is removed. in such a way that, for example, the working or fragmentation area, respectively, is not accessible

  from a direction that is transversal to the work

displacement jet.

  Instead of being constituted by individual stirrups

  duels located next to each other in the manner of a

  grid, an extruded profile or an extruded profile

  the shaped part can be made particularly simple by a flat material, such as

  sheet metal, which is curved or folded, respectively, in

  so that a wall thickness which is substantially constant over its entire extent Thanks to this, regions of this profiled part which are connected to each other or, respectively, which face each other, can be flexible, too, in having a springback

  towards each other, which facilitates assembly, in particular

  In addition, the profiled part may be essentially closed-walled on part of its section

  cross-section, or all of it, or, respectively,

  part of the length of the working area or, respectively, over the whole of the working area or, respectively, over the working width, and this being done in such a way as to constitute protection which is for

  the particle-tight or dust-tight

  in the immediate vicinity of the outer periphery.

  boundary body, which then enters this cross-sectional chamber in such a way that

  only one is still free in the region of

  part of its outer circumference which corresponds to the

more than half of it.

  A delimitation of the travel path, or all

  its delimitations, and in particular those which, in the manner of channel boundaries, are situated approximately parallel to the longitudinal direction of the fragmentation slot, on one side of the median plane of this slot, or on both sides, can be connected to the entrance side

  and / or the exit at the outer periphery of the bounding box

  tation, in an approximately watertight manner, and they may be constituted by the profiled part, of a

  in such a way that only the finest particles can

  in any case enter the associated room, which may also be returned to the

  displaced by shocks or displacement of

  vail. From a region before entering the fragmentation slot to a region after the exit of this slot, the displacement path can be delimited in cross section, transversely and / or parallel to the longitudinal direction of the fragmentation slot, in a substantially closed manner that is such that a delimiting body, or both bodies

  delimitation, are within that delimitation.

  tation, while this closed delimitation, which

  passes, in cross-section, around the delimiting body.

  corresponding on the side of it which is opposite to the fragmentation slot, is continuous since an opening

  introduction into the device which is accessible from the outside

  which is slit-shaped, which is situated at a distance

  security of the fragmentation slot and which is

  intended for the manual introduction of the fragmen-

  ter, to a channel exit which is located at a distance

  this even bigger of the slot of destruction and that is

  intended for the already destroyed material.

  canal which is separated from the casing, which is situated, essentially without contact, inside the latter, which belongs to the basic body, which is essentially closed and which can be delimited directly by the basic body,

  and in fact by the side walls thereof, at one end

  mity of the fragmentation slot, or at both ends thereof, or, respectively, on the longitudinal sides of the channel, instead of being formed by a profiled part or both parts

profiled facing each other.

  Each profiled piece is for example tight against the inner sides of the side walls of the basic body

  flange plates, and it may also be

  for use as a support for a scraper, or two scrapers which are offset at the circumference or respectively which are located approximately diametrically opposite, and

  which are intended for the associated delimitation body, in

  mant with this scraper a set that is mounted beforehand

  or, respectively, which is in one piece

  It may furthermore constitute at least one connection intended for delimitation of the introduction opening formed through the outer cover, so that the passage of this

  longitudinal delimitation at the associated end of the delimitation

  of the channel system takes place almost without voids, and that the corresponding profile piece or a guide member attached thereto, respectively, constitutes a continuous guide surface from the introduction opening to the inlet of the channel. the fragmentation slot The profiled part may also carry at least one sensor which immediately follows the introduction opening and which starts the fragmentation mechanism, for example in the manner of a switch

  actuated by the material to be fragmented which is introduced.

  Thanks to the conformation according to the invention, it is possible to obtain a very light construction and a high solidity, in particular for the base body or, respectively, for the fragmentation mechanism. The two lateral walls of the base body are advantageously manufactured in one piece. single piece with a bottom wall which connects them in the lower region and which is constituted by a sheet metal plate or the like, and they may be mutually reinforced, not by cross-sectional bars

  full, but only by wall profiles,

  the recesses or box sections, respectively, as well as, where appropriate, by the cross-sectional view transverse to the longitudinal direction of the fragmentation slot, such a profiled part can also be offset relative to the

  traveling distance, away from it or, respectively,

  laterally and / or in height and, being made for example approximately in the form of angle, it can constitute a protection which is intended for a drive motor of the fragmentation mechanism located between the side walls and whose upper wing is directed towards one end of the

  base body, so that the motor is freely accessible

  ble from this end after the crankcase has been removed.

  Exemplary embodiments of the invention are shown in the drawings, and they are explained in a manner

  more detailed in the following The figures of the drawings

trent:

  Figure 1 a shredder of documents according to the

  vention, partly in cross-section;

  Figure 2 two constituent elements of the destruc-

  document holder according to Fig. 1, in cross-section and in an enlarged representation; and: Figure 3 another embodiment in one

partial enlarged representation.

  The document shredder 1 according to FIGS. 1 and 2 comprises a basic body 2, which has approximately

  the shape of a U-section in cross-section or vertically

  the, respectively, and an outer cover 3 which is placed on the base body 2, which leaves it open only on the bottom side, for the most part, and which can be easily removed. interior of the outer cowl 3, which constitutes essentially the outer sides of the document shredder 1, which is disposed on the basic body 2 a fragmentation mechanism 4 which is driven by

  a motor 5 and to which the material to be fragmented can be

  born from the outside through an opening opening 6 of the outer cover 3 Since an inlet channel 7 which starts from the insertion opening 6 and which is approximately horizontal and rectilinear, this material arrives in a slot

  approximately horizontal fragmentation and delimitation

  two facing delimiting bodies 8, 9 which are approximately horizontal and which interpenetrate

  the tool way An inclined outlet channel 11 connects

  at the exit of the fragmentation slot 10, and it extends to an outlet 12 of this channel in the region of which the fragmented material can exit the outer cover 3 or the

  document shredder 1, respectively, and to be

  in a receptacle which is placed below an opening

corresponding output.

  The base body 2 has two side walls 13, 14 which are approximately vertical and parallel between

  they are located at the ends of the frag-

  10, which are continuously substantially planar, between which are located the delimiting bodies 8, 9 and which, at a distance from them, below the fragmentation slot 10 and in the region of their delimitations associated longitudinal, are interconnected in one piece by a bottom plate 15 which is continuously substantially flat On the bottom free side of the bottom plate, the base body 2 has feet 16 which protrude to the bottom and by means of which the document shredder can be placed on any support surface outside the device, the outer cover 3 ending

  above the bearing surfaces of these feet.

  corresponding to the bottom plate 15 is located opposite the channel outlet 12 at an angle with it and covering it outwardly, and it forms a wall 17 which is folded upwards relative to the plate 15 and which is provided with an opening for the exit of the material

  fragmented out of the shredder.

  In the region of the extreme opposite this area

  output, the basic body 2 forms for the motor a compar-

  which is closed with respect to the fragmen-

  4, in essentially sealed manner, and which is intended to receive the motor 5 At the ends of the introduction opening 6 which is horizontal and slit-shaped, the outer cover 3 forms hood walls which are open to the bottom plate 15 and in which the side walls 13, 14 protrude, at least in the region of the insertion opening 6, so that this

  the last is delimited at its ends by the outer

  These inner wings do not extend over the entire length of the channel 7 or 11, respectively, the flanks

  side of the latter, which are located transversely

  salement with respect to the longitudinal direction of the fragmentation slot 10, may be delimited by plates

  corresponding guide rails which connect to the wings

  aligned along them, which extend into the channel 11 over the entire length of the channel 7, over a portion of the channel 11 and / or by connecting to the fragmentation slot 10, and which are attached to the inner sides of

  side walls 13, 14 and / or at the side walls 13, 14.

  The two delimiting bodies 8, 9 are made in the form of fragmentation cylinders which are rotatably mounted in recesses or, respectively, in bearings of the side walls 13, 14, which are approximately horizontal, which can be driven in rotation by the

  5 and which are interconnected directly by the

  The transmission from the engine 5 to the fragmentation mechanism 4, as well as the transmission stage, are located on the outer side of a side wall. 13 and on the inner side of the associated hood side wall The bearings of the boundary bodies 8, 9 also act as abutment bearings, so that they produce a static stiffening of the base body 2.

  Between the inner sides turned towards each other

  the lateral walls 13, 14 extend in the region of the fragmentation mechanism 4 two profiled pieces 20, 21 which face each other at a distance from one another, which are advantageously constituted by metal or by a metal plate. , respectively, which have an approximately constant cross section along their entire length and which do not protrude beyond the outer sides of the walls

  13, 14 In cross-section, each part pro-

  20 or 21, respectively, extends substantially from the insertion opening 6 to the channel outlet 12, and, by a profiled portion 22 or 23, respectively, it forms for the delimiting body which is each time associated, 8 or 9 respectively, a closed casing, which is open, for the most part, only on its entire longitudinal side facing the fragmentation slot 10, so that the associated delimiting body 8 or 9, respectively, can penetrate into this housing, and this, roughly, about half to

less of its periphery.

  In cross-section, each profiled portion 22 or 23, respectively, has approximately U-shape at right angles, instead of a circle-shaped shape, and therefore has two profile flanges 24, 25 or 27, 28 , respectively, and a U-profile flange 26 or

  29, respectively The profile wing 27 of the prof.

  23 which is closest to the insertion opening 6 forms an obtuse angle with the associated U-profile sole 29 and, in cross section, forms approximately one

  right angle with the median plane of channel 7, while the

  The profile flange 28 of this profiled portion is located approximately at right angles to the median plane of the channel 11. As a result, the profiled portion 22 or 23 is connected approximately

  tangential to the outer circumference of the body of deli-

  8 or 9, respectively, at a low distance

  this reduced to a slot, and in the immediate vicinity of the inlet and / or outlet of the fragmentation slot 10, so that each delimiting body is located without contact in a groove-shaped channel of the housing The median planes mentioned above are located approximately parallel to the direction

  the width of the channel 7 or 11, respectively.

  Instead of constituting only a profiled part 22 or 23, respectively, the corresponding profiled part 20 or

  21, respectively, comprises at least one other room

  which advantageously connects directly to the outer side of the associated profile flange 24, 25 or 27, 28, respectively, and includes it in the conformation

  on the side of the entrance, the profiled piece cor-

  20 or 21, respectively, forms a box section 30 or 31, respectively, which is shaped in a single, substantially integral manner with it, which continues from the corresponding section wing 24 or 27, respectively ,

  approximately to the opening of introduction 6 or, respectively,

  at least up to and including the entire length of the fragmentation slot or, respectively, of the profiled part 22, 23. The box profile 30, 31 has a sole profile 32, 34 which is connected in one piece to the profile flange

  24 or 27, respectively, by outward folding.

  which, for the most part, is located parallel to the associated delimitation of channel 7 across its entire width and

  its entire length and which may constitute this delimitation.

  At a distance from the profile flange 24, 27, this profile flange 32, 34 is transformed into a stiffening rib 33, bent away from the channel 7, so that a U-shaped profile is formed which is lower than the part

  22, 23 in cross-section, the profile in cais-

  its 30 is narrower than the box profile 31,

  their stiffening ribs 33, 35, which lie approximately in a common plane, are only slightly rearwardly offset from the insertion opening 6, and of a length which is nearly

  equal to the thickness of the constituent material.

  The profile flange 25 or 28, respectively, which is located on the outlet side is integrally formed by folding into a wall section 36 or 37, respectively, which arrives each time approximately to the exit. 12 of the channel or, at least, to the associated end of the side walls 13, 14 at the ends of each box profile 30, 31, the profile flange 32, 34 thereof forms a fastening element 38, 39 which is folded in the same direction as the stiffening rib 33, 35, which is plate or flange-shaped, respectively, and which may be

  rigidly fixed, for example by welding, at the end edges

  associated profile flanges 24, 27 and associated stiffening ribs 33, 35, which form the box section 30 or 31, respectively, which, under

  a flat-bottomed frame or bowl, respectively

  a continuous wall which is uninterrupted for the essential

  The wall profile 36 or 37, respectively, also has at least one element of the wall.

  40 or 41, 42, respectively, which is folded or

  respectively, which is in the same direction and which can also be connected directly to the associated section wing 25, 28

  and / or be located at a distance from it.

  All fasteners 38 to 42 of the end

  corresponding section of the profiled parts 20, 21 are advantageously

  located in a common plan, and they may submit

  for example through or threaded holes, respectively

  so that their plate surfaces which face outwardly can be rigidly clamped by bolts against the inner side of each associated side wall 13 or 14, respectively, but can be detached and changed easily and without disturbances.

  this fastening, the profiled part 22 or 23, respectively,

  is then fixed rigidly, if it also

  initially a return elasticity that is at least sufficient

  to ensure that its two profile wings can be

  The corresponding wall profile 36 or 37, respectively,

  has a profile plate 43 or 44, respectively

  essentially flat, each plate being located on one side of the median plane of the associated channel 11, as the profile sole 32, 34, and a plate and in particular the lower plate having on the inner side a part bent or folded, respectively, in the convex direction, so that the cross-sectional height of the channel 11 increases in the direction of the outlet 12 of the

  channel at an acute angle of a few degrees.

  For the most part, the upper delimitation 45 of the

  channel 7 is continuously flat and horizontal since the opening

  6 from the introduction opening 6, and over a portion of the length of the channel 7, or about half of it , respectively, the delimitation 46 of the channel which is located below and at a distance is also essentially flat, and it is furthermore parallel to the delimitation 45 of the channel to diverge thereafter with respect to it. at the periphery of the associated lower bounding body 9, so that the free cross-sectional height of the channel 7 widens at an acute angle in the direction of the fragmentation slot 10, and that the material to be fragmented which enters on the upper face of the delimitation 46 of the channel may arrive on the outer periphery 50 of the delimitation body 9, which is open on the channel 7 at an arc angle which is at least twice or triple or more, respectively, of that of

  outer rim 49 of the delimitation body 8.

  The two channel boundaries 45, 46 are directly

  to the outside perimeter which is each time

  in such a way that they are connected to it without essentially emptying, or, respectively, that they penetrate into recesses formed on this outer periphery; this is also valid for the corresponding channel boundaries 47, 48 of the channel 11. The upper channel delimitation 47 is inclined from the outer periphery of the delimiting body 8 at an angle

  lower than the lower channel delimitation 48, that

  it advantageously having a portion which connects to the outer periphery of the delimitation body 9, which is

  parallel to the channel 47 delineation and which is more

  than half the length of the channel.

  Because the cross-sectional curvature is about the same for the outer peripheries 49, 50, they define a hopper-shaped slot inlet 51 at the end of the channel 7 and an enlarged slot outlet 52. In cross section, the entrance 51 of the slot extends only between the channel boundaries 45, 46 and, in correspondence with its arrangement, it is asymmetrical with respect to the plane of the channel. the fragmentation slot 10, while the channel delimitation 46, when connected to the outer periphery 50, is advantageously located approximately in the associated axial plane thereof or, respectively, approximately parallel

  the plane of the slot, while the axial plane of the

  outer tower 49 which is parallel to the delimitation of

  channel 45 is shifted outwards with respect to the

  45, and that this channel delimitation 45 forms an obtuse angle with the plane of the slot.

  the slot is delimited accordingly by the two

  channel 47, 48, and is symmetrical with respect to the plane of the slot, essentially each channel delineation 47, 48 being connectable approximately in a plane

  axial to the outer periphery associated 49 or 50, respectively.

  The corresponding profiled piece 20, 21 or the

  Corresponding profiled tie 22, 23, respectively, forms an inner profile side 53, 55 which faces the displacement path and an outer profile side 54, 56 which is opposed to the previous one. On the inner profile side of each airfoil 24, 25 or 27, 28, respectively, a scraper 57, 59 or respectively 58, 60 protrudes transversely or, respectively, approximately parallel to the associated channel delineation, and, instead of being formed of in one piece from the associated profile flange or associated profiled part, respectively, it is formed by a separate constituent element in the form of a strip of flat material 61, and is attached to the profiled piece 20 or 21, respectively, in a rigid or irremovable manner, respectively the upper wiper 57 which is located on the input side and the two scrapers 59, 60 which are located on the output side are continuous plans, for

  the essential, over their entire width and / or over their entire length

  they are attached by one of the two faces of the plate they form to the whole of the

  associated surface of the profile sole 32 or, respectively,

  on the inner face of the profile plate 43 or 44, respectively, and in such a way that they form by

  their other plate surface the associated part of the

  45, 47, 48 The thickness of the material of the

  their which consists of sheet metal or the like can be

  approximately equal to that of the profiled parts 20, 21

  their lower 58 which is located on the side of the entrance is cons-

  staggered by a band which is bent in correspondence with the channel delineation 46, as described, so

  in the Channel 7 area, the canal delimitation cor-

  45 or 46, respectively, is wholly

killed by the associated bands 61.

  On its longitudinal edge, which is freely

  bound to bounding body 8 or 9, respectively, and

  which is therefore slightly elastic in bending,

  ant, the corresponding scraper is equipped in the manner of a

  projecting scraping fingers 62 which are formed by cuts therebetween on said longitudinal edge and which therefore consist of a single piece with the strips

  61 Each delimiting body 8 or 9, respec-

  essentially cylindrical, having a plurality of cutting disks 63 which are substantially equal in size

  next to each other in the direction of the axis and which con-

  the outer periphery 49 or 50, respectively, but that is formed each time between two

  next to an annular groove 64 in which a

  that cut of the other delimitation body can penetrate,

  approximately to the bottom of the groove For the essen-

  the corresponding scraper penetrates with a scraping finger

in each annular groove of the associated cutting cylinder The corresponding scraper is connected by the edges of the bottom of the cutouts to the associated outer circumference 49 or, respectively, approximately without voids, in the manner

  which has been described about the boundaries of the channels.

  In the region of the insertion opening 6, the strip 61 of the wiper 57 protrudes beyond the box profile 30 by a longitudinal edge, so that it forms with the stiffening rib 33 an angle that serves as connecting member 65 for receiving level and, if appropriate, with a laying on the longitudinal edge in sail, the lower longitudinal edge of a vertical wall of the outer cover 3 which is thus connected approximately to

  the upper longitudinal delimitation of the opening of in-

  troduction 6 to form an earlier delimiting wall.

  an introducer hopper 67 of the outer hood 3

  which is greatly enlarged compared to the opening of

  duction 6 By an outer longitudinal edge which is at

  immediate winding of the outer side of the stiffening rib

  35 and which lowers in the form of a shoulder, the strip of the scraper 58 forms a connecting member 66 which is intended for the associated longitudinal edge of the other boundary wall of the feed hopper 67, which thus connects approximately without voids and continuously at the channel boundary 46 in the region of the introductory opening 6 and may

  be further supported on the connecting member 66.

  The material to be fragmented consisting of layers of stacked sheets, for example sheets of paper and plastic, can be placed on this boundary wall and then pushed into the channel 7, but only with a height of stack that is limited

  by the height of the slot of the introduction opening 6.

  The hopper 67 is delimited laterally on both sides by the walls 19 of the casing. The longitudinal edge

  of the band 61 which is located near the connecting member

  65 can be beveled to form an introductory ramp.

  Due to the conformation that has been described, the

  strips or scrapers, respectively, constitute

  guides for the material to be fragmented or, respectively,

  for the fragmented material, at least in the region of the inlet 51 of the slot or, respectively, of the outlet 52

of the slot.

  In addition, the corresponding box profile 30 or 31, respectively, constitutes a support 69 which is intended for this guide member or, respectively, for the associated scraper

  57, 58 and the associated connecting member 65, 66

  Moreover, in common with the associated band 61, there is a support 70 for a sensor 71 which is slightly protruding into the channel 7 at a short distance downstream of the insertion opening 6, approximately in the middle region of the length thereof Each of the two sensors 71 facing each other at a distance from one another is inserted into

  a passage, for example rectangular, which passes through the semi-

  the associated section 32 or 34, respectively, and the associated band 61, so that the majority of the housing of each sensor is located inside the box section

  partner 30, 31 where it is protected

  Milling is introduced through the introduction opening 6, it activates the sensors 71, while it slides along the guide surfaces 72, 73 which are constituted by the bands 61, until, in the region enlarged channel, it arrives in the entrance 51 of the slot, and then in the fragmentation slot 10 in the region of which the two

  cutting cylinders, which are identical for the essential

  tiel, interpenetrate at an arc angle that is smaller than the angle at which outer circumference 50, and more

  the outer periphery 49, open on the channel 7.

  After the fragmentation, which occurred only in this region, the cut, destroyed or torn material, respectively, leaves the fragmentation slot 10 by the

  exit 52 from the slot in the form of tapes and / or parti-

  transversely separated, so that it can

  ash in the channel 11 through gravity and it can arrive in the open air through the outlet 12 of the channel and through the wall 17 When rotating in opposite directions of the cutting cylinders, the material that eventually adheres at

  their outer circumference 49, 50 or in the annular grooves

  res 64, respectively, can be scraped by the scrapers 57

  at 60, for example by scraping, the greater part of this

  the latter arriving in channel 11 or, respectively, in the

  channel 7, in the direction of rotation of the cylinders of

  eg, to finally reach the exit 12 of the canal However, some of the scraped material may also arrive under the

  form of dust in the crank chamber which is

  killed by the associated profiled part 22, 23 to be reassembled

  in this chamber, since the scrapers are

  dent approximately without voids to the cutting cylinders.

  In the case of the crank chamber of the upper cutting cylinder, the dust can then be deposited on the faces

  upper associated scrapers 57, 59.

  During assembly, these scrapers 57, 59 can be

  slightly displaced from each other by spreading

  elastically of the profile flanges 24, 25, in order to move them in the manner of a snap connection beyond the associated axial plane of the cutting cylinder 8, because the connection plane between these two scrapers 57, 59 is more close to the fragmentation slot 10 that the axial plane of the cylinder of

cut 8 which is parallel to it.

  Through the longitudinal edge of the profile plate 43 which is located near the outlet 12 of the channel, the wall profile 36 constitutes a support 76 intended for a channel flap 77 which is suspended or, respectively, which can oscillate freely in the output 12 of the channel and which can be mounted

  by means of simple rings 78 which are inserted into holes

  of support 76 and its own longitudinal edge

  in such a way that it releases the output of the channel

  under the pressure of the fragmented material that follows the

  and the associated longitudinal edge of the profile plate 44 which is provided in the form of a chute constitutes a locking member 79 which is bent towards the channel section 37 which is located near the outlet 12 of the channel or respectively. the hook-shaped exterior, which passes through the passage in the wall 17 and is pressed on the face

outside of it.

  The fragmentation mechanism 4 that has been described, including the channels 7, 11, is in a chamber of

  carter which is essentially closed compared to the

  In the region of the latter, the two side walls 13, 14 are mutually braced by another single profiled piece 80 which is also in the form of a sheet metal profile or the like, being shaped angle in cross section, and which,

  by means of fasteners of the kind described, is unique

  It is attached to the inner sides of the side walls 13, 14 and, optionally, the bottom plate 15. On the side facing the fragmentation mechanism 4, the profiled part 80 constitutes a vertical wing 81 placed on the bottom plate, which is transformed above the engine 5 in a wing 82 which overhangs it and which is roughly horizontal or hipped roof, respectively, so that one gets for the engine 5 which is located below the introduction opening 6 or introduction hopper

  67, respectively, protection 83 which lies beyond

  under the lower wall of the hopper 67, and at a distance from this wall, which descends obliquely to

  the way of a chute with respect to the opening of intro

  6 between the side walls 13, 14, the bottom wall 15 and the upper flange 82 is thus constituted

  an opening 84 for access to the motor 5, which extends approximately

  approximately the entire width of the basic body 2 and which

  is free after the outer cover 3 has been raised.

  In the vicinity of the wing 81, at a distance from the latter, and in the immediate vicinity of the connecting member 66, the outer cover 3 has an intermediate wall 85 which projects downwards from the underside of the wall of the bottom of the hopper 67, which can be placed as a support wall on the bottom plate 15 and which constitutes an additional partition wall between the

  engine compartment 18 and the fragmentation mechanism 4.

  In addition, the outer cover 3 is supported on the base body 2 in the region of the two ends of the latter, while being raised, by means of support shoulders which are approximately located on its lower face. the region

  engine compartment 18, the bottom plate 15 is lightly

  protruding beyond the ends of the sidewalls 13, 14, and thereby constitutes a support for a

  shoulder of support shifted upwards and arranged in the sur-

  lower edge face of the associated end wall A

  the other end, the wall 17 constitutes, in its zone of

  tremity and on its inner face, a support 86 on which rests the other end wall of the outer cover 3 Because of this, and because the connecting member 66 is slightly offset relative to the connecting member 65 to against the direction of introduction, the outer cover 3 can

  to be lifted, both in a rectilinear manner

  around the support which is located near the engine 5.

  Thanks to the described conformation, one obtains on the corresponding side, and in the direction of the width of the path of displacement, a set 87 or 88, respectively, which is mounted beforehand for the essential and which comprises each time as support base the associated profiled piece 20 or

  21, respectively, on which the other

  The two constituents and devices that have been described

  of the assembly 87 or 88, respectively, which are located on both sides of the fragmentation slot 10 in the region of the inlet and the outlet thereof, are here connected together in the manner of a bridge, essentially outside the channel 7, 11, through the profiled portion 22, 23, which constitutes shaped portions

  stirrups that are located away from interior surfaces.

  or ends, respectively, of the side walls 13, 14 or the fragmentation slot 10, respectively, and

  between them, and which are distributed more or less

  between these ends in the case where, contrary to what is shown, they are not constituted by a continuous and closed profiled part 22, 23 Essentially, all the constituent elements of the basic body 2, the channel 7, 11 , scrapers, transverse stiffeners, etc., can thus be made from profiled sheet, which

  leads to a very lightweight construction mode.

  In FIG. 3, we use for parts

  corresponding to each other the same reference marks as in the

  res 1 and 2, but with the index "a", so that all

  parts of the description are valid for all

  my realization, all things being equal.

  According to FIG. 3, the corresponding profiled piece 20 a, 21 a

  is not a single item, for the most part, since the opening

  introduction, which is also constituted by the outer hood to the exit of the channel, and it is

  otherwise articulated in at least two or three parts,

  respectively, so that over the entire length of the channel three profiled portions are obtained on each side of the channel 7a, 11a in the width direction. The profiled portion 22a or 23a, respectively, constitutes for the cutting cylinder 8a or 9a, respectively, an angle-like protection at approximately right angles whose wings 24a, 25a or,

  respectively 27a, 28a are located approximately

  tangentially with respect to the associated cutting cylinder.

  Only one of these wings is fixed rigidly to the basic body,

  while the other wing 25a or 27a, respectively, terminates

  not protruding freely without being fixed, so that the protection can yield elastically In the case where the protection is located at a higher level, the wing 24a is transformed into a profile sole 32a which is bent towards

  the outside at an obtuse angle, and this is transmitted

  formed in an angle flange 33a which is bent at right angles to the channel 7a, so that an angle profile 30a is formed by means of which the profiled portion 22a is attached to a brace 38a which connects the two walls

  sides in the form of a solid bar with a trans-

  rectal versale and which also bears the band 6 ta of

wiper 57 a.

  To this end, the brace 38a is traversed by a series of holes in which bolts 89 are introduced transversely to the median plane of the channel 7a, and this, in such a way that their heads are embedded in holes of the band 61 has and they shake

  the latter against the flat side associated with the contraband

  To this end, the bolts 89 are provided, on the side of the brace 38a which is opposite the band 61a, of a

  tightening nut on the outside front side of which the

  30 A spun yarn carried by the wing 32 has being tightened by another nut, so the profiled portion 22 may be

  removed without breaking the band 61

  33a of the profile angle 30a which receives the contraband-

  38 on the inside may bear on a

  lateral surface of bracing 38 a.

  To provide further support for the band 61a, there may be provided, in the vicinity of the brace 38a, and in the region of the insertion opening 6a, another bracing bar 70a of the same kind which then constitutes by one

  outer surface a flank of the connecting member

  65a Thanks to this, the strip 6a can stiffen each other

  the two braces 38a, 70a between their ends.

  The wall section 36a is also formed by a separate component which is secured independently of the profile portion 22a to another brace 40a of the same kind, which is integral with the wiper 59a and who

  is made continuously in the form of a flat plate.

  This is clamped against the brace 40a by bolts 89a, in the vicinity of the outer periphery of the cutting cylinder 8a and at a small distance therefrom, as has been described with respect to the belt 61a, and it can project from this bracing towards the exit of the channel in

  being free or, respectively, without being otherwise fixed.

  The profile wing 25a is flat like all the other wings of the profiled part 22a, and, by its free longitudinal edge, it is connected approximately without voids or at a reduced distance to a slot, respectively, to the lateral surface. bracing 40 a which is turned towards the

  cutting cylinder 8a, so that this bracing constitutes

  kills part of the crankcase boundary.

  In the case of the lower profiled part 23a, the arrangement is provided in an inverted manner, in this sense

  that the angle profile 31 a is connected to the wing of profi

  28a and that it is fixed by bolts to a bar-shaped brace 41a, in common with the wall profile 37a or with the scraper 60a, respectively, as has been described with respect to the profile. angle 30 a The cylinder of

  upper section 8a is shifted in the direction of the displacement

  relative to the lower cutting cylinder 9a, so that their common axial plane is inclined accordingly, the two braces 40a, 41a being laid obliquely in

  proportion and being advantageously located in a

parallel to this axial plane.

  The other wing 27 is connected by its longitudinal edge.

  dinal to the reentrant angular zone of the racetrack

  58 a, as has been described Wing 27a is located between the outer periphery 50a of the cutting cylinder 9a and another bar-shaped brace 39a which carries by bolts the strip of the wiper 58 a or the connecting member 66 has, respectively, in the manner that has been described The profiled portion 23a may be shaped in the manner described with respect to the profiled portion 22a, so that the two profiled portions are formed by the same constituent elements and that they can be exchanged between them Essentially, all the features of the two embodiments can be provided in the case

  other examples of realization in some combinations

  conques or, respectively, according to any additions.

Claims (10)

CLAIMS -   A document shredder comprising a fragmentation slit (10, respectively 10a) which is delimited between two delimiting bodies (8, 9, respectively 8a, 9a) of a fragmentation mechanism (4, respectively 4a) and which determines a slot plane and a longitudinal direction transverse to a direction of passage of the material to be fragmented, while it is intended to be disposed approximately in this longitudinal direction and to   distance from a neighboring outer surface (49, 50, respec-   49 a, 50 a) of an associated delimiting body (8, 9, respectively 8 a, 9 a), at least one profiled piece (20, 21, respectively 20 a, 21 a) which is intended to be fixed to a basic body (2) of the fragmentation mechanism (4),   characterized in that the profiled piece (20, 21,   20 a, 21 a), seen in the longitudinal direction, comprises a profiled part (22, 23, respectively 22 a, 23 a) which remotely surrounds the stirrup body.   associated delimitation (8, 9, respectively 8 a, 9 a).   Document shredder according to claim 1,   characterized in that the profiled piece (20, 21,   20 a, 21 a) is performed, at least in part   length, in the form of a wall profile, in part   ticularly U-shaped, which is shaped   preference to remotely surround the delimitation body.   associated manner (8, 9, respectively 8 a, 9 a) in the manner of a housing, by its profiled portion (22, 23, respectively 22a, 23a), and on an arc angle of between about 45 and more of 180.   3 Document shredder according to any of the   claims 1 and 2, characterized in that the part   section (22, 23, respectively 22 a, 23 a) of the   (20, 21, respectively 20a, 21a) is connected, at least approximately, and on at least one side of the profile, to   least one channel delimitation (45, 47, 46, 48), in particular   plate-shaped, an inlet channel and / or an outlet channel (7, respectively 7a; 11, respectively 11a) for the material to be fragmented, this delimitation   preferably extending, for the most part, throughout   of the fragmentation slot (10, respectively 1 Da)   or, respectively, over the entire width of the channel.   4 Document shredder according to any of the   Claims 1 to 3, characterized in that the piece   profile (20, 21, respectively 20a, 21a) forms a pre-assembled assembly with at least one channel delineation (45, 47; 46, 48, respectively, 45a, 46a) which connects to the fragmentation (4, respectively 4 a), and is in particular substantially integrally formed with at least the adjacent region of the channel boundary (45, 47; 46, 48), at least one profiled wing (24, 25; 27, 28) preferably   a channel delimitation associated with being bent towards the ex-   TER AL. Document shredder according to any one of   Claims 1 to 4, characterized in that the workpiece   profile (20, 21, respectively 20 a, 21 a) essentially comprises fastening elements (38, 40; 39, 41, 42).   intended for attachment to the basic body (2, respectively   2 a) that outside the outer profile surfaces (54, 56, respectively, 54 a, 56 a) of the profiled part (22, 23, respectively 22 a, 23 a), connecting in particular directly to them, and that these elements are preferably constituted by flange plates connecting with one another. alone holding at its ends.   6 Document shredder according to any of the   Claims 1 to 5, characterized by the fact that   at the outer side of the profiled part (22, 23) of the part   profile (20, 21) at least one box profile or one   wall, respectively (30, 36, respectively 31, 37), in particular U-shaped in longitudinal or transverse section, respectively, which preferably constitutes at least a part of the associated channel delineation (45, 46, 47, 48) with the outer side of a U-profile flange (32, 43, respectively 34, 44) and / or which, together with at least one flange of the U-profile, constitutes a fastening element (38, 40, respectively 39, 41, 42), a stiffening rib (33, respectively 35), a profile flange (24, 25, respectively 27, 28) of the profiled portion   (22, respectively 23> or the like.   7 Document shredder according to any of the   Claims 1 to 6, characterized in that the workpiece   profile (20, respectively 21) constitutes an assembly (87,   88) with at least one constituent element selected   if among at least one scraper (57, 59, respectively 58, 60)   intended for the material to be fragmented, at least one guide member   age (72, 74, respectively 73, 75) which approximates   to the outer periphery (49, respectively 50) of the associated delimiting body (8, respectively 9) and which is intended for the material to be fragmented, a support (70) provided   for at least one sensor (71) for the fragmen-   ter, a support (76) for a channel flap (77) on a   channel outlet (12) which is intended for the fragmen-   at least one connecting member (65, respectively   66> intended for delimitations of an introductory opening   (6) the material to be fragmented from an outer cover (3) of the document shredder (1), and at least one profile of   stiffening for the basic body (2).   8 Document shredder according to any of the   Claims 1 to 7, characterized in that at least one   wiper (57, 59, respectively 58, 60> for the material to be fragmented projects in cross-section beyond the   inner side of the profile (53, 55 respectively) of the   profiled tie (22, respectively 23) of the profiled piece   (20, respectively 21), that it continues in particular   beyond the length of the fragmentation slot (10), for   essentially all in one piece, and that it consists of pre-   a strip (61) which is essentially flat and which constitutes at least part of a channel delimitation (45, 47, respectively 46, 48) connecting to the body of   associated delimitation (8, respectively 9), the organ of   associated string (65, 66>, at least a part of the support (70> for a sensor (71) and / or a guide member (72, 74, respectively 73, 75).   9 Document shredder according to any of the   Claims 1 to 8, characterized in that at least one   wiper (57, 59, respectively 58, 60) for the material to be fragmented is secured with support, essentially flat, to a wall surface of the profiled piece (20, respectively 21), and in particular to the outer surface of a U-profile flange (32, respectively 34), and that it preferably projects, by at least one longitudinal edge, beyond the associated longitudinal limitation of this wall surface. Document shredder according to any one of   Claims 1 to 9, characterized in that at least one   delimiting body (8, 9) is constituted by a cylinder of   fragmentation which can be rotational and which   particularly cutting discs (63) along its entire length and annular grooves (64)   between them for the penetration of the other delimiting body   tation (9, 8), while at least one scraper (57 to 60> is preferably scraping fingers (62) which project in the manner of a comb and which are intended to come   engaged in the annular grooves (64).   he Destroyer documents according to any of the   Claims 1 to 10, characterized in that the bodies   delimiters (8, 9) are arranged between two side walls   (13, 14> of the basic body (2), and that in particular the   two side walls (13, 14) are mutually braced.   away from a U-section (15) of the body   (2) in the form of a U-shape, and exclusively for the essen-   through the delimiting bodies (8, 9) as well as through profiled parts (20, 21,) which are formed as wall sections and   of which one (80), in the form of an angle for the most part,   preferably for the motor a similar protection (83) to a crankcase.   12 Document shredder according to any of the   claims 1 & 11, characterized by the fact that the body   of corresponding delimitation (8, respectively 9) penetrates to its region associated with the fragmentation slot (10), including the entrance of the slot (51) and the exit of the slot (52), being completely enclosed , essentially, in an inner casing which is preferably constituted by the   associated profiled part (22, 23) and by the associated scrapers   (57, 59, respectively 58, 60), and that independently of an outer cover (3), it constitutes with the basic body   (2) a pre-assembled assembly.