JPH05192601A - Shredder - Google Patents

Abstract

PURPOSE: To achieve a shield which consists of a lightweight structure, has high strength and is good in boundary members by constituting the shield in such a manner that profile parts have profile sections when viewed in a longitudinal direction and that these profile parts enclose the boundary members to a form like a bow apart distances. CONSTITUTION: A shredder 1 has a comminuting gap 10 which is delineated of the at least one boundary members 8 and 9 of the comminuting mechanism 4. The gap plane and the longitudinal direction perpendicular to the passage direction of the material to be comminuted are defined by the comminuting gap 10. The at least one profile parts 20 and 21 are fixed to the body 2 of the comminuting mechanism 4 and are arranged approximately in a longitudinal direction and are setted apart a distance from the adjacent outsides 49, 50 of the boundary members 8, 9. The profile parts 20 and 21 have the profile sections 22 and 23 when viewed in the longitudinal direction and are so constituted as to enclose the boundary members 8 and 9 to the shape like the bow apart the distance.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a shredder or components / subassemblies for a shredder used, for example, for documents. The element is arranged in particular in the boundary region of the conveying or feeding path, and is arranged such that the subdivision material traverses it before and / or after the subdivision and also during the subdivision operation near the subdivision gap. In order to have such a structure, the shredder includes a body having a receiving portion for the shredding mechanism. The boundary member, such as a cutting roller, is fixed to the element after setting, defining or limiting the subdivision gap in the transport path. It contacts at least a portion of the material being subdivided during operation.

[0002]

At least one profile part can be provided approximately longitudinally of the subdivision gap. The profile parts can be set outside the subdivision gap, for example near the outer circumference of at least one boundary member, with no other member at least on each longitudinal part between the side facing the boundary member outer circumference and its outer circumference. To do so.
Therefore, the profile part is the element closest to the outer circumference of the boundary member. The profile parts provide, for example, mutual fixing of the side walls or bearing walls of the body, support or form strip members for at least one boundary member, or constitute boundaries of conveying paths or structures with similar functions. If the profile part is made of a strong profile bar, for example with a rectangular or circular cross section, it has excellent strength properties and a stripper receptacle can be set, but with a considerable weight. turn into. In addition, the arc angle that each profile bar surrounds in the cross section is also limited.

[0003]

However, in the case where the profile parts consist of cross-sectional interconnecting parts of different alignment and a wall profile with a generally uniform wall thickness, the profile parts of the profile parts cross the subdivision gap. Provides the possibility of a stripper design, with which the profile part can be engaged before the assembly or installation of the boundary member.

It is an object of the present invention to provide a shredder or a member for a shredder or at least one subassembly to overcome the problems of the prior art, and by a particularly simple construction, at least one boundary member. To achieve the desired shield in the outer region of the sub-gap, while achieving different functions and good installation with a simple structure.

[0005]

The invention comprises a subdivision gap 10 or 10a, which is defined by at least one boundary member 8, 9 or 8a, 9a of the subdivision mechanism 4 or 4a, the gap plane and The longitudinal direction perpendicular to the passage direction of the material to be subdivided is the subdivision gap 10 or 10.
at least one profile part 20, 21 or 20 on the body 2 of the subdivision mechanism 4 as defined by a.
a, 21a is fixed, it is arranged approximately in the longitudinal direction and the adjoining outer surface 4 of the boundary member 8, 9 or 8a, 9a
In a shredder set at a distance from 9, 50 or 49a, 50a, the profile parts 20, 21 or 20a, 21a have profile sections 22, 23 or 22a, 23a when viewed in the longitudinal direction, The gist is a shredder characterized in that it surrounds the boundary members 8, 9 or 8a, 9a at a distance with a bow-like shape.

[0006]

DETAILED DESCRIPTION OF THE INVENTION The peripheral region of one or both boundary members is designed to be partially or wholly surrounded by a profile section in at least one or all operating conditions. In addition, this outer peripheral region is a subdivision gap,
It does not belong directly to the boundary of its inlet and / or its outlet. The inside of the profile section associated with the boundary member forms interconnects of different alignment in cross section, 45, 60, 90, about the central axis,
The boundary member is surrounded by an arc angle of 120 or 180 degrees or more. Desirably in that region the profile section forms a shield for the boundary member opposite the subdivision gap and the maximum distance from the boundary member is
It is smaller than or about half the width of its cross section, and is preferably substantially completely out of contact with the boundary member.

The profile section, at least in the operating state, is connected to the body firmly in the set position without clearance or in braces. The profile section can implement these and other functions alone or all at the same time. If the subdivision mechanism including the body is selectively surrounded by the dome-shaped casing, the shield in the peripheral region of the boundary member is maintained even after the casing is removed, and the operation region is seen from the direction perpendicular to the transport path. Alternatively, the subdivision area cannot be accessed.

Instead of being formed from individual grid side-by-side clips, extruded or similar strand profiles, the profile sections can be simply formed of a flat plate material such as sheet metal, especially bent or angled, and thus The wall thickness can be substantially uniform over the entire area. Therefore, the connecting region or the facing region of the profile section can be elastically and flexibly configured with respect to each other, and in particular, the assemblability can be improved. Further, the profile section can be configured like a substantially closed wall in part or all of the cross section, or in part or all of the substantial working area or width. Thus, the profile section forms a substantially powder or dusttight shield in the immediate vicinity of the perimeter of the boundary member, and when viewed in cross section the profile section engages the chamber and At most half is exposed near the transport route.

The boundaries of one or all of the transport paths, in particular in the form of shaft boundaries, are arranged approximately parallel to the longitudinal direction of the subdivision gap on one or both sides of the gap intermediate surface and are arranged at the inlet and / or On the outlet side, it is connected in a substantially tight manner to the outer circumference of the boundary member, which can also be formed by profiled parts. Therefore, only the finest powder enters the chamber, which can be returned to the supply shaft by vibrating or operating movements.

The conveying path is closed in its cross section from the upstream region of the inlet of the subdivision gap to the downstream region of the outlet thereof substantially at right angles to and / or parallel to the longitudinal direction of the gap, and within one or both of its boundaries. A boundary member is provided. This closed boundary extends through the enclosure of the boundary body on the side opposite to the top when viewed in cross section and extends from an externally accessible slot-like device inlet to a shaft outlet for the subdivided material. The insertion port is provided at a distance from the subdivision gap that allows the material to be subdivided to be manually inserted, and the shaft outlet is provided at a further distance from the subdivision gap. With this arrangement, the shaft system is provided separately from the casing and is arranged in the casing in substantially non-contact with it. The shaft system also belongs to the body and is substantially closed, and can be defined at the side wall of the body at one or both ends of the subdivision gap or at the longitudinal side of the shaft instead of one or two opposing profile parts. Is.

The profile part is supported, for example, by a flange plate on the inside of the side wall of the body. The profile part can also be the carrier of one or two strippers for the boundary member. The strippers are arranged around the boundary member or face each other at approximately their diameter. The profiled parts can be preassembled to the stripper or form an assembly therewith. The profile part can form at least one connection for the boundary of the insertion opening formed by the outer casing, the transition from its longitudinal boundary to the shaft system boundary end being substantially continuous.
The profile part or a guide member fixed thereto forms a continuous guide surface from the insertion opening to the entrance of the subdivision gap. The profile part can also support at least one sensor provided following the inlet opening.
The sensor can be configured to perform a switch action, for example by the introduction of the material to be subdivided, activating the subdivision mechanism.

According to the present invention, the lightweight construction provides particularly high strength of the body or subdivision mechanism. The two side walls of the body are preferably formed using sheet metal plates or the like, integrally with the bottom wall joining them in the lower region, but without the need for a strong cross section bar. . The side walls are strut-supported only by the wall, hollow or box-shaped profile and optionally by the boundary members with respect to one another. Such profiled parts may be provided in cross section at right angles to the longitudinal direction of the subdivision gap and also at or next to and / or offset from the conveying path in the height direction, and a subdivision mechanism arranged between the side walls. Forming an angular shield for the vehicle drive motor, the upper leg of which extends towards one end of the body. Therefore, when the casing is removed, the motor is freely accessible from said end.

Further features of these and preferred advantages of the invention will be apparent from the claims, drawings and detailed description. Each feature can be realized in the embodiments of this invention and in other fields either alone or in the form of sub-combinations, and an effective independent protectable construction for protection is claimed.

1 and 2, the document shredder 1 shown in FIGS. 1 and 2 comprises a body 2 having a substantially U-shaped transverse or vertical cross section, and an outer casing 3 provided on the body 2 so as to surround the bottom thereof and easily removable. Have
The outer casing 3 basically forms the outer surface of the shredder 1. The body 2 is provided with a subdivision mechanism 4 driven by a motor 5, which is arranged in the outer casing 3. Then, the material to be subdivided is supplied to the subdivision mechanism 4 from the outside through the insertion opening 6 of the outer casing 3. The material passes from a substantially straight, horizontal feed shaft 7 into a substantially horizontal subdivision gap 10. The supply shaft 7 extends from the insertion port 6. The subdivision gap 10 is defined by two substantially horizontal, tool-like interlocking boundary members 8, 9. An inclined discharge shaft 11 is connected to the subdivision gap 10 and leads to a shaft outlet 12. The subdivided material is discharged from the outer casing 3 or the shredder 1 near this outlet and collected in a container installed below the discharge opening.

The body 2 has two side walls 13, 14 which are substantially upright, parallel and substantially flat. Side wall 13,1
4 are located at both ends of the subdivision gap 10. Side wall 1
Boundary members 8 and 9 are provided between 3 and 14. Also, the side walls 13 and 14 have a sub-division gap 10 near the longitudinal boundary.
A base plate 1 which is substantially flat across from the bottom
5 are integrally connected. The body 2 has a downwardly projecting foot 16, which is provided on the exposed bottom of the base plate 15. The shredder can be placed on any random mounting surface, or on a fixed surface ending at the outer casing 3. The end of the base plate 15 forms a wall 17 that is inclined upward. This wall 17
Are provided so as to face the shaft outlet 12 at an angle and project outward. An opening is provided in this wall for discharging the shredded material from the shredder.

The body 2 forms a motor chamber 18 which is substantially rigidly closed. This is for accommodating the motor 5 with respect to the subdivision mechanism 4 and is provided in the end region opposite to the discharge area. The outer casing 3 forms laterally hollow or U-shaped casing walls 19 at both ends of the horizontal slot-like insertion opening 6. The casing wall 19 opens towards the base plate 15 at least in the vicinity of the insertion opening 6 and faces the side walls 13, 14 towards it.
Is protruding. Thus, the ends of the insertion opening are defined on the outside of the medial foot of the casing wall 19. Since the inner foot does not project beyond the length of the shaft 7 or 11, lateral flanks arranged across the length of the subdivision gap 10 can be defined by the guide plate. The guide plate is connected in alignment with the medial foot and extends over the entire length of the shaft 7 to a portion of the shaft 11 and / or to the shaft 11 at the subdivision gap 10 and also to the inside of the side plates 13,14. Are also located and / or fixed to this. The boundary members 8 and 9 are configured as substantially horizontal rollers and have side walls 1
It is rotatably provided in 3, 15 receptacles or bearings.

The boundary members 8 and 9 are rotated by the motor 5 and directly drive-connected so as to rotate in opposite directions by a gear stage. The gears from the motor 5 to the subdivision mechanism 4 and the gear stage are arranged outside the side wall 13 and inside the side casing wall. Since the bearings of the boundary members 8 and 9 also function as journal bearings, the static rigidity of the body 2 is also obtained.

Near the subdivision mechanism 4 two opposing profile parts 20, 21 extend between the opposing inner surfaces of the side walls 13, 14. The profile parts 20, 21 are preferably made of metal or a metal plate, have a substantially uniform cross section over their entire length and do not project outside the side walls 13, 14. The profile parts 20, 21 extend in cross section substantially from the insertion opening 6 to the shaft outlet 12 and by the profile sections 22, 23 form a closed casing for the boundary members 8, 9. This casing is open over its entire length only on the side facing the subdivision gap 10. Border members 8, 9
Has a shape in which at least half or more in the circumferential direction is surrounded by the casing.

Instead of a pitch circle in cross section, each profile section 22 or 23 has a generally rectangular U-shape with two profile legs 24, 25 or 27, 28 and a U-shaped crossbar 26 or. 29 is formed. Lower profile section 2
The profile foot 27 close to the insertion opening 6 of 3 makes an obtuse angle with the U-shaped crossbar 29, and its cross section is substantially perpendicular to the intermediate surface of the shaft 7. On the other hand, the other profile legs are substantially perpendicular to the intermediate surface of the shaft 11.
Thus, immediately adjacent to the inlet and / or outlet of the subdivision gap 10, the profile sections 22, 23 are configured to connect to the outer circumference of the boundary members 8, 9 in a substantially tangential direction with a slight clearance, The boundary members are arranged in a slot-shaped casing passage without contact.

Instead of forming only the profile section 22 or 23, in particular the profile part 20 or 21 has yet another profile part. It is preferably a profile foot 24, 25 or 2
Directly connected to the outside of 7, 28 and contained within the profile structure. The profile parts 20 or 21 are essentially integrally box-shaped profiles 30, especially on the supply side.
Or 31 is formed. Box-shaped profile 30, 31
Extends from the profile foot 24 or 27 to at least the insertion opening 6 and the profile sections 22, 23
Alternatively, it extends over substantially the entire length of the subdivision gap 10. Box-shaped profiles 30 and 31 are profile feet 2
4 or 25 having profile crossbars 32, 34 integrally joined by bending outward,
It may also be parallel to the boundary of the shaft 7 over substantially its entire width and length, forming the shaft 7.

The profile crossbars 32 and 34 are spaced apart from the profile legs 24 and 27 and are located on the shaft 7.
Which is followed by stiffening bars 33, 35 bent in the opposite direction, forming a U-shaped profile which is shorter than the profile sections 22, 23. The cross section of the box-shaped profile 30 is narrower than that of the box-shaped profile 31, and the reinforcing bars 33 and 35 located substantially on the same plane have the insertion opening 6
It is slightly retracted by about the thickness of the material.

The outlet profile foot 25 or 28 is bent and integrally connected to the wall profile 36 or 37. The wall profiles 36, 37 are approximately the shaft exit 1
2 or at least to the ends of the side walls 13,14. At both ends of the box-shaped profiles 30 and 31, the profile crossbars 32 and 34 form plate- or flange-shaped fixing members 38 and 39, respectively.
39 is bent in the same direction as the reinforcing bars 33 and 35. The fixing members 38, 39 are formed by welding the profile foot 2
The ends of 4, 27 and the reinforcing bars 33, 35 can be rigidly fixed, thus forming a frame or a flat shell box profile 30, 31. Box-shaped profile 30,3
1 has a through wall that is substantially uninterrupted over the entire circumference. The wall profile 36 or 37 also has at least one fastening element 40 or 41, 42, which are similarly constructed or bent. Fixing members 40, 4
1, 42 can also be connected directly to the profiled feet 25, 28 and / or can be placed away from them.

All fixing members 38 to 42 at the ends of the profile parts 20, 21 are preferably arranged in the same plane and can have, for example, through holes or screw holes. Therefore, the plate surface facing outward can be firmly fixed to the inside of the side walls 13 and 14 with the bolts. However, this fixing is non-destructively easily removable and replaceable. With such fixing, the profile sections 22, 2
3 is also dimensionally firmly fixed, and has a flexible elasticity in advance such that at least two profile legs thereof are spread. The wall profiles 36, 37 have substantially flat profile plates 43, 44, each of which on one side of the intermediate face of the shaft 11 has a profile crossbar 3
2, 34, in particular the lower profile plate has an inwardly convexly curved bend. Therefore, the cross-sectional height of the shaft 11 increases in a sharp angle toward the shaft outlet 12 by a few degrees.

The upper boundary 45 of the shaft 7 is substantially flat and horizontal from the insertion opening 6 to the outer wall of the upper boundary member 8. The shaft boundary 46, which is arranged at a distance below it, is also substantially flat from the insertion opening 6 to a part of the shaft 7, preferably half its length, and is substantially flat.
It is parallel to 5. Then, the shaft boundary 45 is inclined to the periphery of the lower boundary member 9. Therefore, the inner cross-sectional height of the shaft 7 increases sharply up to the subdivision gap 10. The material introduced to be subdivided is allowed to rise along the outer circumference 50 of the boundary member 9 at the shaft boundary 46. The outer circumference 50 of the boundary member 9 is exposed at an arc angle that is at least twice or more than the outer circumference 49 of the boundary member 8.

Since both shaft boundaries 45, 46 are guided to the outer circumference, they are connected substantially continuously to the outer circumference or engage in a recess in the outer circumference. Shaft 1
The shaft boundaries 47 and 48 of one have the same structure. The upper shaft boundary 47 is inclined from the outer periphery of the boundary member 8 by a few radians than the lower shaft boundary 48. The lower shaft boundary 48 preferably has a portion connecting to the outer circumference of the boundary member 9, which is parallel to the boundary 47 and less than half the shaft length.

Since the cross sections are curved in approximately the same way, the outer perimeters 49, 50 define a hopper or funnel-shaped narrowed gap inlet 51 at the end of the shaft 7 and a hopper or funnel-shaped at the beginning of the shaft 11. Defining a widened gap outlet 52. Gap entrance 5
1 has a cross section that extends only between the shaft boundaries 45, 46 and is asymmetric with the gap plane of the subdivision gap 10 depending on the arrangement. The shaft boundary 46 leading to the outer circumference 50 is preferably located on the axial plane and is substantially parallel to the gap plane, while the axial plane of the outer circumference 49 parallel to the shaft boundary 45 is offset to the outside with respect to the boundary 45, Forms an obtuse angle with the gap plane. The gap outlet 52 is defined by two shaft boundaries and is substantially symmetrical with respect to the gap plane, each shaft boundary 47, 48 being connectable to an outer circumference 49, 50 generally in the axial plane.

In particular, the profile parts 20, 21 or the profile sections 22, 23 form profile inner surfaces 53, 55 facing the transport path and opposite profile outer surfaces 54, 56. Stripper 5
7, 59 or 58, 60 project from a profile inside the profile legs 24, 25 or 27, 28 that are transverse or substantially parallel to the shaft boundary and instead of being integrally formed from profile legs or parts, they are separate members. Can be formed in the form of strips 61 of flat material and are rigidly or permanently fixed to the profile parts 20, 21. Both the upper stripper 57 on the inlet side and the stripper 59, 60 on the outlet side are substantially flat over their entire width and / or their entire length. And
The entire surface of the profile crossbar 32 or the profile plate 43 or 44 together with one of the two plate surfaces
Being fixed inside, they form the relevant parts of the shaft boundaries 45, 47, 48 with other plate surfaces. The thickness of the sheet metal or similar stripper material can be about the same as that of the profiled portions 20,21. The lower stripper 58 on the inlet side is formed by a strip bent in the manner described above with respect to the shaft boundary 46, so that near the shaft the shaft boundary 45 or 46 is completely formed by the strip 61. At its longitudinal edge, which is free to project towards the boundary member 8 or 9 and can be bent and slightly bent, the stripper has a strip finger 62 projecting in a comb shape. The strip fingers 62 are formed by a plurality of incisions on the longitudinal edges and are thus integrally formed with the strip 61. Each boundary member 8 or 9 forms a substantially cylindrical roller,
It has a plurality of axially juxtaposed cutting rings 63 that are substantially evenly spaced apart, which form an outer circumference 49 or 50. An annular slot 64 is formed between each two adjacent cutting rings, and the other boundary member cutting ring is engageable therein to approximately the bottom of the slot.
Stripper strip fingers 62 mate with each annular slot of the cutting roller. The particular stripper is continuously connected to the outer circumference 49 or 50 at the bottom edge of the cut, in a manner similar to that described for the shaft boundary.

The longitudinal edge of the strip 61 of the stripper 57 projects from the box-shaped profile 30 near the insertion opening 6. It forms an angled profile with the stiffening bar 33 and for receiving the lower longitudinal edge of the outer casing 3 upright wall flush with it, the connecting member 65.
Which is selectively located at the lower longitudinal edge. It is therefore connected around the upper longitudinal boundary of the insertion opening 6 and the insertion hopper 67 of the outer casing 3.
To form the front boundary wall of. The insertion hopper 67 has an insertion opening 6
It is considerably larger than The strip of stripper 58 forms a connecting member 66 for the longitudinal edge of the other boundary wall of the insert hopper 67 by a shoulder-like longitudinal edge immediately adjacent to the outside of the reinforcing bar 35 and offset outwardly downward. ing. The insertion hopper 67 is connected to the shaft boundary 46 near the insertion opening 6 almost continuously without interruption, and is supported on the connection member 66.

The material to be subdivided into layers of stacked sheets, such as sheets of paper or plastic, is placed on its boundary wall, and the slot height of the slot 6 limits the stack height and the shaft 7 Inserted inside.
The casing wall 19 defines an insert hopper 67 on both sides. The longitudinal edges of the strip 61 located on the connecting member 65 can be beveled to form an insertion bevel 68. The strip or stripper is configured as described above, thus forming a guide member for the material to be subdivided or subdivided, at least near the gap inlet 51 and the gap outlet 52.

Further, the box-shaped profile 30 or 31
Form a carrier for the guide members or strippers 57, 58 or the connecting members 65, 66. Also,
It forms a carrier 70 for the sensor 71 with the strip 61. The sensor 71 is provided near the middle of the length of the shaft 7 with a predetermined distance from the insertion port 60.
It projects slightly inside. Each of the two spaced-apart sensors 71 is, for example, inserted in a rectangular passage opening and traverses the profile crossbar 32 or 34 and the strip 61. Therefore, the housing of the sensor is arranged in the box-shaped profile 30 in a largely protected manner. The sensor 71 is activated when the material for the subdivision is introduced through the insertion opening 6. Material is stripped 6 until it reaches the widened shaft area of the gap inlet 51.
Slide along the guide surfaces 72, 73 formed in 1 and into the subdivision gap 10. Subdivision gap 1
At 0, two cutting rollers configured substantially the same are engaged with each other at an arc angle smaller than the outer circumference 50 and larger than the outer circumference 49, and exposed to the shaft 7.

After the subdivision operation which is performed only in this area,
Damaged or torn material that has been cut into strips and / or transverse cuts leaves the subdivision gap 10 through the gap outlet 52. And the shaft 1 by gravity
It falls into 1 and can be opened through the shaft outlet and the wall 17. By rotating the cutting roller in the reverse direction, the cutting roller is attached to the outer circumference 49, 50 or the annular slot 64
Any material therein may be removed by scraping, for example by strippers 57-60. And most of them are caused by the forward rotation action of the cutting roller.
Or through 7 and finally to the shaft outlet. However, some of the strip material may also enter the casing chamber formed by the profile sections 22, 23 and collect there through the unbroken connection of the stripper and the cutting roller. In the case of the casing chamber of the upper cutting roller, dust collects on the top surfaces of the strippers 57, 59.

For assembly, the profile foot 2
Stripper 5 by elastically spreading 4,25
Since 7, 59 can be moved slightly, they can move in the axial plane of the cutting roller 8 in the snap connection method. Because the connecting surface of the two strippers 57, 59 is smaller than the parallel axial plane of the cutting roller 8 by the subdivision gap 10.
Because it is near.

The wall profile 36, together with the longitudinal edge located at the shaft outlet 12 of the profile plate 43, forms a carrier 76 for the shaft flap 77. The shaft flap 77 hangs or hangs from the shaft outlet 12, but can be set with a ring 78 threaded through a hole in the carrier 76. Since the upper end in the longitudinal direction is as described above, the shaft outlet is opened by the pushing-up pressure of the subdivided material. The longitudinal edges of the profile plate 44 acting as a wall profile 37 or chute at the shaft outlet 12 form a locking member 79. The lock member 79 is bent back to the outside in a hook shape, passes through the opening of the wall 17, and is supported on the outside thereof.

The subdivision mechanism 4 including the shafts 7 and 11 is
Located within a substantially closed casing member associated with the motor chamber 18. Two side walls 1 near the motor chamber 18
3, 14 are struted together by other profile parts 80. The profile part 80 can also be constructed as a wall profile having an angular cross section by means of sheet metal or a similar material, and the side wall 13, by means of a fixing member of the characteristics described above.
Only inside 14, and optionally base plate 1
It is also fixed at 5. The profile part 80 has an upright foot 81 standing on the base plate 15 on the side facing the subdivision mechanism 4. The upright foot 81 is connected to a substantially horizontal hip-roof foot 82 on the motor 5. Foot 8
2 is engaged in the same person. Therefore, the shield 83 for the motor is formed below the insertion port 6 or the insertion hopper 67. The shield 83 is provided below the insert hopper 67 and at a distance therefrom. The insertion hopper 67 is inclined to the insertion opening 6 in the form of a slip ram. Side wall 13,1
Between 4, the bottom wall 15 and the upper foot 82 form an access opening 84 for the motor. It extends over almost the entire width of the body 2 and is exposed when the outer casing 3 is removed.

The outer casing 3 has a cutout 85 adjacent to the foot 81 and immediately adjacent to the connecting member 67. The cutout 85 projects downward from the lower surface of the bottom wall of the insertion hopper 67. The edge 85 stands as a supporting wall for the base plate 15 and forms another separating wall between the cutting mechanism 4 and the motor chamber 18. further,
The outer casing 3 is detachably supported on the body 2 by support shoulders located at the bottom near both ends of the body 2. Base plate 15 near motor chamber 18
Protrudes slightly from the ends of the side walls 13 and 14 and forms a support for a support shoulder offset upwards on the lower edge surface of the end wall. On the other end side, the wall 17 forms a support 86 in its inner end region. The other end of the outer casing 3 is mounted on the support 86. Connection member 66
Is slightly offset in the anti-insertion direction with respect to the connecting member 65, so that the outer casing 3 can be lifted in a swiveling manner linearly and around a support located at the motor.

The arrangement described above results in assemblies 87, 88 that are substantially preassembled on the wide side of the transport path. Each of the assemblies 87, 88 has a profile part 20 or 21 as a basic carrier, to which the aforementioned elements and arrangements are provided. The assembly elements 87 or 88 located on either side of the subdivision gap 10 are
On the outside of the shafts 7, 11 in the supply and discharge areas, they are connected in a bridge fashion by profile parts 22, 23. Then, a plurality of clip portions are formed. This is located at a distance between the inner surfaces of the side walls 13, 14 or both ends or the subdivision gap and, if not formed entirely by the closed profile sections 22, 23 as shown, is uniform between the ends. Will be distributed to. Substantially all elements of body 2, shafts 7,1
1, strippers, cross struts, etc. can be formed from profiled sheet metal and therefore can be constructed light.

In FIG. 3, members corresponding to those in FIGS. 1 and 2 are shown with the same reference numerals and a. The above description also applies to the examples. As shown in FIG. 3, the profile parts 20a and 21a are not integrated from the insertion port 6a formed by the outer casing to the shaft outlet. Instead, it is divided into at least two or three parts. On the wide sides of the shafts 7a, 11a there are three profile portions in their longitudinal direction. The profile sections 22a, 23a form a substantially right angled angular shield for the cutting rollers 8a, 9a. The legs 24a, 25a or 27a, 28a are located approximately tangential to the cutting roller. Only one foot or one side is firmly fixed to the body, but the other foot or the other side 25a or 27a is not fixed and freely projects. The shield is therefore elastic. In the case of the upper shield, the foot 24a becomes the outer obtuse angle profile web 32a, and the angular profile 30a formed on the profile part 22 is fixed to the strut 38a. The strut 38a is a fixed rod having a rectangular cross section.
Strip 6 of stripper 57a connecting two side walls
I also support 1a.

For this purpose, the strut 38a has a row of holes through which bolts 89 are inserted perpendicularly to the intermediate surface of the shaft 7a. The head of the bolt is then flush with the hole in the strip 61a, fixing the latter to the flat side of the strut 38a. Therefore, the bolt 89 is attached to the strip 61a.
Angular profile 3 with a clamp nut on the side of the strut opposite to the one with a foot 32a on its outer end face.
0a is engaged and is fixed by another nut. Therefore, the profile part 22a can be removed without loosening the strip 61a. Struts 38 on the inside
bent leg 33 of angular profile 30a receiving a
The a can be engaged with the side surface of the strut 38a in a supporting manner.

To further support the strip 61a,
A strut bar 70a may be similarly provided adjacent to the strut near the insertion opening 6a. Strut bar 70
The outer surface a forms a crank of the connecting member 65a.
Therefore, the strip 61a can fix the two struts 38a and 70a to each other between both ends thereof.

The wall profile 36a is also formed of another member and is fixed to another similar strut 40a independently of the profile portion 22a. It is formed integrally with the stripper 59a as a continuous flat plate. The latter is fixed to the strut 40a with a bolt 89 at a predetermined distance next to the cutting roller 8a. As mentioned with respect to the strip 61a, it is non-fixed and freely projectable towards the shaft outlet. Profile foot 25a is profile section 2
It is flat like all the other legs of 2a. The profile foot 25a connects to the side of the strut 40a facing the cutting roller 8a, either continuously or with a slight gap at its longitudinal edge, and forms only part of the casing boundary.

In the case of the lower profile portion 23a,
An arrangement opposite to that of the bending profile 30a is made.
That is, the bending profile 31a is the profile foot 2
8a and is arranged to be bolted to the rod struts 41a with the wall profile 37a or stripper 60a. Since the upper cutting roller 8a is displaced in the feeding direction with respect to the lower cutting roller 9a, the common axis plane is inclined accordingly.
Further, the two struts 40a and 41a are also inclined and located on the same plane parallel to the axial plane.

The other foot 27a is connected at its free longitudinal end to the concave bend region of the strip of stripper 58a. The foot 27a is located between the outer periphery 50a of the cutting roller 9a and another rod-shaped strut 39a. Struts 39a support strips of stripper 58a or connecting members 66a by bolts in the manner previously described. The profile section 23a can be constructed in the same way as the profile section 22a, both profile sections can be formed as one piece and are replaceable. All of the features of both illustrated examples may be randomly combined or additional features may be added to form alternative embodiments.

[Brief description of drawings]

FIG. 1 is a partial sectional view showing a shredder of the present invention.

FIG. 2 is an enlarged cross-sectional view showing two components of the shredder of FIG.

FIG. 3 is an enlarged view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Document shredding machine 2 Body 3 Outer casing 4, 4a Shredding mechanism 10, 10a Shredding gap 8, 9, 8a, 9a Boundary member 20, 21, 20a, 21a Profile part 22, 23, 22a, 23a Profile section ◆

Claims (4)

[Claims] 1. A subdivision gap (10 or 10a) is provided, which is defined by at least one boundary member (8, 9 or 8a, 9a) of the subdivision mechanism (4 or 4a), the gap plane and the subdivision. The longitudinal direction perpendicular to the direction of passage of the material is defined by the subdivision gap (10 or 10a) and the body (2) of the subdivision mechanism (4) has at least one profile part (20, 21 or 2).
0a, 21a) is fixed, is arranged approximately longitudinally and is set at a distance from the adjacent outer surface (49, 50 or 49a, 50a) of the boundary member (8, 9 or 8a, 9a). In the cutting machine, the profile parts (20, 21 or 20a, 21a), when viewed in the longitudinal direction, are
shredder, characterized in that it has a), which surrounds the boundary member (8, 9 or 8a, 9a) at a distance in a bow-like manner. 2. A profile part (20, 21 or 20a, 21a) of substantially U-shape is connected to at least one shaft boundary (4 or 4a).
5, 47; 46, 48 or 45a, 46a) to form a pre-assembled assembly, and the profile parts are especially at least the shaft boundary (45, 47;
46, 48) and substantially integrally with the connecting area of the at least one profile foot (2
Shredder according to claim 1, characterized in that (4, 25; 27, 28) bends outward and leads to the shaft boundary. 3. A profile part (20 or 21) forms a subassembly (87 or 88), the subassembly being formed by at least one stripper (57,59 or 58,60) for the material to be subdivided. Element and at least one member for the material to be subdivided, which extends approximately to the outer circumference of the boundary member (8 or 9)
One guide member (72,74 or 73,75), a carrier (70) for at least one sensor (71) for the material to be subdivided, and a shaft outlet (12) for the subdivided material Shaft flaps (77)
Carrier (76) for at least one connecting member (65 or 66) and the body (2) for the boundary of the shredder material inlet (6) in the outer casing (3) of the shredder (1) 3. A shredder according to claim 1 or 2, characterized in that it comprises at least one reinforcing profile. 4. The boundary member (8, 9) has two side walls (1).
Between the two side walls (13,1)
4) a profile part (20, 2) which is substantially configured as a boundary member (8, 9) and a wall profile at a distance from the U-shaped crossbar (15) of the U-shaped body (2)
1,80) only fixed to one another, preferably substantially angular profile parts forming a casing-shaped motor shield (83). The shredder according to item 1.