JP2016087480A - Shredder feeding port mechanism and shredder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shredder feeding port mechanism which can cope with various numbers of sheets from a small number of sheets to a large number of sheets and attain improvement in safety, quietness, and usability.SOLUTION: A shredder has a feeding port where a shredding object is cast, a shredding object passage having a passage opening interval formed by an inner inside face and an outer inside face extending in parallel from the feeding port, a passage restriction member provided halfway in the shredding object passage to form a restriction opening interval by being projected in a direction of projection from either inside face of the inner inside face and the outer inside face of the shredding object passage to the other inside face, and energization means for energizing the passage restriction member, where the passage restriction member is made to serve as a shredder feeding port mechanism capable of sliding in a horizontal direction and configured by energization in the projecting direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a shredder slot mechanism and a shredder for shredding an object to be shredded such as waste paper.

  A shredder is a machine that shreds a shredded object such as an unnecessary document generated in an office or the like with a shredding blade until the contents cannot be identified.

  A shredder has been developed that can increase the maximum number of shredded sheets and shred in large quantities at once.

  In these types of shredders capable of shredding a large number of sheets, it is natural that the larger the number of sheets that can be shredded at one time, the wider the gap between the inlets into which the object to be shredded is thrown.

  And the wider the gap of the slot, the greater the risk for the user and the possibility of erroneous insertion.

  On the other hand, for example, the opening width of the guide path of the shredder insertion port is changed according to the moving direction of the paper sheet, and the opening width in the feeding direction is set to be approximately equal to the thickness of the maximum number of paper sheets that can be shredded. A shredder has been proposed in which the opening width of the guide path is made wider than the opening width in the feeding direction and the opening width in the returning direction can be changed when returning the paper sheets to the insertion port side (Patent Document 1).

  However, in the case of Patent Document 1, since the feed direction opening width is fixed from the shredding direction (feed direction), the feed direction opening width always remains wide when shredding a large number of sheets. Further, widening the opening width in the return direction is performed by rotating the opening width switching means with respect to the force from the return direction. However, if the opening width is changed by the rotational force, the load increases.

JP 2002-11367 A

  The present invention has been made in view of the above problems of the prior art, and is a shredder that can cope with various numbers of sheets from a small number of sheets to a large number of sheets, and can improve safety, quietness, and ease of use. It is an object to provide a slot mechanism and a shredder.

  In order to solve the above-mentioned problems, the shredder inlet mechanism of the present invention is a shredder inlet mechanism for shredding an object to be shredded. A shredder passage having a passage opening interval formed by an inner inner surface and an outer inner surface extending in parallel from the mouth, and provided in the middle of the shredder passage, so as to limit the passage opening interval, A passage restricting member that forms a restricting opening interval by projecting in a projecting direction from one of the inner inner surface and the outer inner surface of the shredded object passage to the other inner surface; and the passage Urging means for urging the restricting member, and the passage restricting member is slidable in a horizontal direction and is urged in the protruding direction, and the shredder passage Less than the passage opening interval of the passage, and the limit opening When a shredded object having a thickness larger than the interval is introduced from the inlet and passes through the shredded object passage, the passage restricting member slides in the counter-biased direction by the passing shredded object. The restricted opening interval is increased by the thickness of the object to be shredded.

  Preferably, the urging means is a spring member, and the passage restriction member is urged by the elastic force of the spring member.

  As described above, the shredder inlet mechanism according to the present invention has a mechanism in which the limit opening interval is increased by the thickness of the shredded object from the shredding direction of the shredded object. In addition, when pressure is applied to the passage restricting member from the return direction of the shredded object (the discharge direction of the shredded object) that is opposite to the direction in which the shredded object is charged, It is preferable that the restriction opening interval is further increased than the restriction opening interval that is increased by the thickness. And, when removing from the return direction of the shredded object (the discharge direction of the shredded object) is a small amount of shredded object, it can be taken out with a low load, and in the case of a large amount of shredded object It is preferable that the restricted opening interval is further increased from there, because the restricted opening interval is increased in two stages.

  The shredder of the present invention has the inlet mechanism for the shredder. More specifically, the shredder of the present invention is provided with a shredder inlet mechanism in a housing, a waste container for storing shredded waste inside the housing, and a shredded object thrown from the inlet. And a shredding mechanism having a shredding blade for shredding. It is preferable that the chopping blade can be rotated forward and backward.

The inlet mechanism of the shredder of the present invention can be the following mechanism.
(1) A mechanism of an inlet that can automatically adjust the passage opening interval at the inlet into which the object to be shredded is introduced according to the thickness of the object to be shredded. The interval remains narrow, and if you cut a large number of sheets, it will increase according to its thickness.)
(2) A mechanism in which the passage opening interval can be adjusted from 0 mm or more to an arbitrary width (the passage opening interval in the charging port is always closed when not in use, and expands according to the object to be shredded. This is a mechanism that expands by the thickness of, so noise from the shredding mechanism is reduced.)
(3) Using a mechanism that is adjusted according to the thickness of the object to be shredded, it is possible to grasp the amount of the object to be shredded before shredding.
(4) A mechanism in which the passage opening interval is increased by the thickness of the shredded object from the direction in which the shredded object is introduced. From the return direction of the object to be shredded, a mechanism in which the passage opening interval is further expanded by one step so that the shredded object can be easily taken out. Thereby, it is possible to easily pull out a shredded object such as a document that has been caught in the middle of shredding from the insertion port.

  According to the present invention, there is provided a shredder slot mechanism capable of dealing with various numbers of sheets from a small number to a large number, and capable of improving safety, quietness, and ease of use, and a shredder incorporating the shredder. There is a great effect that you can.

  In addition, the mechanism that automatically adjusts the clearance of the slot according to the thickness of the shredded object greatly reduces the chance of erroneous throwing of the shredded object and improves safety for users. The And since the adjustment mechanism operates from a certain number of shredded sheets or more, the user can feel the operation feeling of the adjusting mechanism and can have a willingness to shred a large number of sheets. Is thought to improve. Furthermore, since the passage opening interval of the inlet is increased along the thickness of the shredded object, the passage restricting member serves as a sound barrier, and noise during shredding leaking from the gap of the inlet is reduced. Silence is improved. Furthermore, visually, the mechanism that automatically adjusts the gap of the slot according to the thickness of the object to be shredded makes it easier to see the rotating shredder blade of the shredding mechanism than before. The fear of the user during use is also expected to be reduced.

It is a schematic sectional drawing which shows one embodiment of the inlet opening mechanism of the shredder of this invention. It is a schematic sectional drawing which shows the state which the restriction | limiting opening space | interval expanded from the state of FIG. It is a schematic perspective view which shows one embodiment of the inlet mechanism of the shredder of this invention from the back side. It is a schematic sectional drawing which shows the state in which the expansion | swelling restriction | limiting opening space | interval which the space | interval expanded further than the state of FIG. 2 was formed.

  Embodiments of the present invention will be described below, but these embodiments are exemplarily shown, and it goes without saying that various modifications can be made without departing from the technical idea of the present invention. In the drawing, the same members are denoted by the same reference numerals.

  1 to 4 show one embodiment of a shredder slot mechanism according to the present invention. 1-4, the code | symbol 10 shows the inlet mechanism of the shredder of this invention.

The shredder inlet mechanism 10 is a shredder inlet mechanism for shredding a shredded object, and includes an inlet 12 through which the shredded object is inserted, and an inner inner surface extending in parallel from the inlet 12. 14 and a shredded object passage 18 having a passage opening interval D1 formed by the outer inner surface 16 and the shredded object passage 18 provided in the middle of the shredded object passage 18 so as to limit the passage opening interval D1. The passage restricting member 20 that forms the restricting opening interval D2 by projecting in the projecting direction A from one of the inner inner surface 14 and the outer inner surface 16 of the shredded material passage 18 to the other inner surface. And an urging means 22 for urging the passage restriction member 20, and the passage restriction member 20 is slidable in the horizontal direction and is urged in the protruding direction A. Become
A shredded object having a thickness smaller than the passage opening interval D1 of the shredded object passage 18 and having a thickness larger than the limited opening interval D2 is introduced from the charging port 12 to pass through the shredded object passage 18. When passing, the passage restricting member 20 is slid in the counter-biasing direction B by the passing shredded object so that the limited opening distance D2 is increased by the thickness of the shredded object. It is comprised so that it may become.

  In the illustrated example, as well shown in FIGS. 1 and 2, the projecting direction A is illustrated as projecting from the inner inner surface 14 of the shredded object passage 18 to the outer inner surface 16. Moreover, in the example of illustration, a to-be-chopped object is thrown from the throwing direction P of a to-be-chopped object. The return direction Q of the object to be shredded is opposite to the input direction P. In the illustrated example, reference numerals 24a and 24b denote frame members, and the shredder inlet mechanism 10 is attached to the shredder housing via the frame members 24a and 24b.

  An example of a spring member is shown as the urging means 22. The passage restriction member 20 is urged in the protruding direction A by the elastic force of the spring member which is the urging means 22. Three directions of the force acting on the spring member which is the urging means 22 are indicated by arrows S in FIG.

  A guide rod 26 is horizontally mounted on the frame members 24a and 24b, and the long hole 28 of the passage restriction member 20 is engaged therewith. The passage restricting member 20 is slidable in the horizontal direction by the action of the long hole 28 and the action of the slide rail 30 in contact with the contact frame 34. Reference numeral 32 denotes a micro switch. When the limited opening interval D2 is greatly opened (for example, when the interval is larger than the set upper limit), the micro switch 32 is operated to stop the normal rotation of the shredder blade. Like that. Thereby, the safety of the shredder is improved.

  With the above-described configuration, the passage restriction member 20 slides in the horizontal counter-biasing direction B by the force from the charging direction P, and the restriction opening interval D2 is increased by the thickness of the shredded object. Has been.

In this way, depending on the setting, for example, (i) In the normal time (non-chopping), the limit opening interval D2 is set to a gap of about the rated number of sheets, and when the large number of sheets is shredded, the thickness is set. It can be set to expand only. As described above, since the restriction opening interval D2 for a large number of sheets is not always opened, the passage restriction member 20 serves as a soundproof wall, and noise from the shredding mechanism can be reduced.
Further, by setting, for example, (ii) in normal time (non-chopping), the passage restriction member 20 becomes a soundproof wall by making the restriction opening interval D2 as close to zero as possible. It can also be set to further reduce noise.
However, even in these cases, the size of the limited opening interval D2 from the insertion direction P is set to a size that takes into account user safety.

  The shredding inlet mechanism 10 causes the passage restricting member 20 to rebound even in a force from the return direction Q of the shredded object, which is opposite to the throwing direction P of the shredded object. By sliding in the horizontal direction B, the limit opening interval D2 is expanded. If it is a small amount of shredded object, it can be pulled out with a low load from the expanded restricted opening interval D2.

  However, when a large amount of shredded objects are caught, the force from the return direction Q increases due to the force to be pulled. In this case, as well shown in FIG. 4, the shredder inlet mechanism 10 is configured so that the passage restricting member 20 moves from the shredding object return direction Q to the shredding object reverse direction P. When a pressure sufficient to rotate the passage restriction member 20 is applied, the contact of the slide rail 30 is released, and the passage restriction member 20 rotates about the guide rod 26 as a fulcrum. This is also the action of the spring member which is the urging means 22. That is, the spring member which is the urging means 22 is provided so as to be inclined so that horizontal and vertical forces can be applied simultaneously. As a result, an enlarged restricted opening interval D3 is formed in which the restricted opening interval is further expanded from the restricted opening interval that is expanded by the thickness of the shredded object.

  By configuring as described above, it is possible to take out from the return direction of the object to be shredded (the discharge direction of the object to be shredded) in the case of a small amount of object to be shredded, with a large load. In the case of an object to be shredded, the limited opening interval is further expanded from there, and thus the limited opening interval is expanded in two stages.

  Further, by incorporating the shredder inlet mechanism 10 into the shredder, the shredder can cope with various numbers from a small number to a large number, and can improve safety, quietness, and ease of use. .

10: inlet mechanism of shredder of the present invention, 12: inlet, 14: inner inner surface, 16: outer inner surface, 18: shredder passage, 20: passage restriction member, 22: biasing means, 24a, 24b: frame member, 28: long hole, 30: slide rail, 32: micro switch, 34: abutment frame, A: protruding direction of the passage restriction member, B: counter-biasing direction, D1: passage opening interval, D2: Restriction opening interval, D3: Enlargement restriction opening interval, P: Direction of throwing object, Q: Return direction of object to be shredded, S: Direction of force acting on spring member.

Claims (4)

A shredder slot mechanism for shredding objects,
An input port through which an object to be shredded is input;
A shredded object passage having a passage opening interval formed by an inner inner surface and an outer inner surface extending in parallel from the charging port;
Protruding from the inner side surface of either the inner inner side surface or the outer inner side surface of the shredded material passage to the other inner side surface so as to limit the passage opening interval provided in the middle of the shredded material passage. A passage restricting member that forms a restricting opening interval by being protruded in the direction;
Biasing means for biasing the passage restriction member;
Have
The passage restriction member is slidable in a horizontal direction and is biased in the protruding direction,
When a shredded object having a thickness smaller than the passage opening interval of the shredded object passage and having a thickness larger than the restriction opening interval is introduced from the charging port and passes through the shredded object passage, A shredder inlet mechanism in which the passage restricting member is slid in the counter-biasing direction by the passing shredded object so that the restricted opening interval is increased by the thickness of the shredded object.   The shredder inlet mechanism according to claim 1, wherein the urging means is a spring member, and the passage restriction member is urged by an elastic force of the spring member.   When pressure is applied to the passage restriction member from the return direction of the shredded object, which is the direction opposite to the direction in which the shredded object is charged, further than the limited opening interval that is expanded by the thickness of the shredded object. The shredder slot mechanism according to claim 1 or 2, wherein the restriction opening interval is widened.   The shredder which has the inlet mechanism of the shredder of any one of Claims 1-3.

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