JP2008062167A - Paper shredder and spacer used for this paper shredder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper shredder which can improve the safety without losing usability and also prevent overload and to provide a spacer therefor. <P>SOLUTION: A shell body 2 of a shredder body 1, in the inner part of which a rotary blade 6 is arranged, has a concave part 7 in which a first insertion opening 8 of a slit shape is formed at the bottom part, and a spacer 17 which is installed to the concave part 7, and this spacer 17 has a second insertion opening 18 of a slit shape, while the width X2 in the shorter direction of the second insertion opening 18 is formed to be narrower than the width X1 in the shorter direction of the first insertion opening 8 and the distance Y2 from the rotary blade 6 to the upper end of the second insertion opening 18 is set to be longer than the distance Y1 from the rotary blade 6 to the first insertion opening 8 in the state that the spacer 17 is installed to the concave part 7, so that even a slender finger of a very younger child, etc. can not be inserted from the second insertion opening 18, and even if it can be inserted, the finger tip can not reach the rotary blade 6 and the safety can be improved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a document shredding machine that makes it difficult for thin fingers or paper that is too thick to enter an insertion slot for inserting paper or the like to be shredded.

Conventionally, this type of document shredding machine has a pair of rotary blades inside and a shredding machine main body having a slit for paper insertion (corresponding to the insertion port of the present invention) on the upper surface. The thing is known (for example, refer patent document 1). In such a document shredding machine, a concave portion (corresponding to the concave portion of the present invention) for facilitating insertion of paper into the casing is formed, and the slit is formed at the bottom of the concave portion. ing.
Japanese Patent Laid-Open No. 2003-236401

  However, such a document shredding machine has a safety problem because a relatively thin finger such as a child can be inserted into the slit. Further, even a cardboard having a thickness exceeding the shredding ability of the rotary blade can be inserted into the slit, and there is a possibility that an excessive load is applied to the document shredding machine. . On the other hand, in order to solve such a problem, the width in the short direction of the slit (that is, the gap) is narrowed to such an extent that even a relatively thin finger such as a child cannot be inserted, ensuring safety and being excessively large. Although it may be possible to prevent the document shredding machine from being subjected to a heavy load, in this case, it is difficult to insert the paper to be shredded into the slit even within the shredding capability. Will occur. This problem is particularly noticeable when a plurality of folded or bent papers are inserted into the slit at a time.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a document shredding machine and a spacer therefor that can improve safety without impairing usability and prevent overload.

  The document shredding machine according to claim 1 of the present invention has a shredder body, and the outer shell of the shredder body is a recess and a slit-shaped first formed at the bottom of the recess. In the document shredding machine having an insertion port and a rotary blade provided inside the outer shell body, the document shredding machine has a spacer attached to the recess, and the spacer is slit-shaped. The rotary blade has a second insertion port, the width of the second insertion port in the short direction is narrower than the width of the first insertion port in the short direction, and the spacer is attached to the recess. To the inlet side end of the second insertion port is configured to be longer than the distance from the rotary blade to the inlet side end of the first insertion port.

  The document shredding machine according to claim 2 of the present invention is the document shredding machine according to claim 1, wherein a lip portion is formed at at least one outlet side end portion of the long side of the second insertion port. When the spacer is attached to the recess, the spacer can be inserted into the first insertion port.

  The spacer according to claim 3 of the present invention is a shredder having an outer shell body having a recess in which a slit-shaped first insertion port is formed at the bottom, and a rotary blade provided inside the outer shell body. A spacer attached to the concave portion of the machine body, the spacer having a slit-shaped second insertion port, and the width of the second insertion port in the short direction is smaller than the width of the first insertion port in the short direction. The distance from the rotary blade to the inlet-side end of the second insertion port in a state where the spacer is attached to the concave portion is the inlet-side end of the first insertion port. It is comprised so that it may become longer than the distance to.

  Furthermore, a spacer according to a fourth aspect of the present invention is the spacer according to the third aspect, wherein a lip portion is formed at an outlet side end portion of at least one of the long sides of the second insertion port, and the lip portion is the spacer. Is configured to be insertable into the first insertion port when attached to the recess.

  The document shredding machine according to claim 1 of the present invention is configured as described above, and by attaching the spacer to the recess of the shredding machine main body, the width in the shorter direction than the first insertion port. Since paper or the like is inserted from the second insertion port having a narrow width, even a relatively thin finger such as a child cannot be inserted from the second insertion port, and the finger is temporarily inserted into the second insertion port. Even if it can be inserted into the insertion slot, since the distance from the rotary blade to the inlet side end of the second insertion slot is long, the fingertip does not reach the rotary blade, and safety can be improved. Obviously, it becomes difficult to insert a cardboard having a thickness exceeding the shredding capability, so that it is possible to prevent the document shredding machine from being overloaded. On the other hand, paper or the like can be shredded as usual by removing the spacer from the recess.

  Further, when the spacer is attached to the concave portion, a lip portion formed at an outlet side end portion of at least one of the long sides of the second insertion port is configured to be insertable into the first insertion port. Thus, even if a finger or cardboard that is thicker (or thicker) than the width in the short direction of the second insertion slot is about to be inserted into the second insertion slot, the lip portion contacts the first insertion slot and the Since the deformation of the spacer is suppressed, the safety can be further improved and the overloading of the document shredder can be more reliably suppressed.

  The spacer according to claim 3 of the present invention is configured as described above, and is attached to the recess of the shredder body so that the first width is narrower than the first insertion port. Since paper or the like is inserted from the two insertion openings, even a relatively thin finger such as a child cannot be inserted from the second insertion opening, and the finger is temporarily inserted into the second insertion opening. Even if it is possible, since the distance from the rotary blade to the inlet side end of the second insertion port is long, the fingertip does not reach the rotary blade, and safety can be improved, and clearly Since it becomes difficult to insert a cardboard having a thickness exceeding the cutting ability, it is possible to prevent the document shredding machine from being overloaded.

  Further, when the spacer is attached to the recess, a lip portion formed at an outlet side end portion of at least one of the long sides of the second insertion port is configured to be inserted into the first insertion port. Thus, even if a finger or cardboard that is thicker (or thicker) than the width in the short direction of the second insertion slot is about to be inserted into the second insertion slot, the lip portion contacts the first insertion slot and the Since the deformation of the spacer is suppressed, the safety can be further improved and the overloading of the document shredder can be more reliably suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6. Reference numeral 1 denotes a shredding machine main body constituting the document shredding machine of the present invention. The shredder main body 1 is configured to be placed in the opening of a dust case (not shown) having an upper opening. The shredder main body 1 includes an outer shell body 2, a guide member 3, a movable hook portion 4, an operation portion 5, and a rotary blade 6. The outer shell 2 is composed of an upper outer shell 2A and a lower outer shell 2B. In addition, an elongated recess 7 is formed in the upper portion of the upper outer shell 2A constituting the outer shell 2, and a slit-like shape for inserting paper to be shredded is formed in the bottom of the recess 7. The first insertion port 8 is formed. On the other hand, in the lower part of the lower outer shell 2B constituting the outer shell 2, an elongated opening 9 is formed corresponding to the first insertion port 8. The recess 7, the first insertion port 8, and the opening 9 are formed so as to extend substantially parallel to the length direction of the outer shell body 2. The upper housing 2A is integrally formed with a fixed hanging portion 10, and the movable hanging portion 4 is attached to the opposite side of the upper housing 2A to the fixed hanging portion 10. . In addition, the said movable hook part 4 is comprised so that adjustment of the distance with the said fixed hook part 10 is possible by attaching to the length direction of the said upper housing | casing 2A so that a slide is possible. The guide member 3 is sandwiched between the upper outer shell body 2A and the lower outer shell body 2B, and constitutes a path for feeding paper by connecting the first insertion port 8 and the opening 9. In addition, a slit-like hole 11 having a width substantially the same as the width (that is, the gap) X1 in the short direction of the first insertion port 8 is formed. The lower end 3 </ b> A of the guide member 3 is inserted into the opening 9 to constitute a discharge port 12. Furthermore, the path from the first insertion port 8 to the discharge port 12 is formed to extend in the vertical direction when the document shredder is in use. The guide member 3 is formed with a slit-like blade window 13 for exposing the rotary blade 6 into the hole 11.

  A switch (not shown) is provided in the outer shell 2, and this switch can be operated by the operation unit 5. The outer shell 2 is provided with a drive mechanism (not shown) including an electric motor and a speed reduction mechanism (not shown), and shafts 14 and 15 formed in a hexagonal column shape are parallel to the speed reduction mechanism of the drive mechanism. It is attached. The shafts 14 and 15 are provided in parallel with the first insertion port 8. Further, a large number of disk-like rotary blades 16 are attached to these shafts 14 and 15. And the said rotary blade 6 is comprised by attaching the said rotary blade body 16 grade | etc., To each said shafts 14 and 15 in this way. In addition, the said rotary blade body 16 is metal, The fine unevenness | corrugation is formed in the circumferential direction at the outer periphery.

  A spacer 17 is detachably attached to the recess 7 formed in the upper outer shell 2A constituting the outer shell 2. When the spacer 17 is attached to the recess 7, the upper surface thereof is formed to be the same as the upper surface of the upper outer shell body 2A or slightly lower than the upper surface of the upper outer shell body 2A. . The spacer 17 has a second insertion port 18 corresponding to the first insertion port 8. Note that the width (that is, the gap) X2 of the second insertion port 18 in the short direction is formed to be narrower than the width X1 of the first insertion port 8 in the short direction. Further, a concave introduction portion 19 is formed at the upper end of the second insertion port 18 so that paper can be easily inserted into the second insertion port 18. Further, a lip portion 20 is formed at one lower end of the long side of the second insertion port 18. The lip portion 20 is configured to be insertable into the first insertion port 8 when the spacer 17 is attached to the recess 7.

  Next, the operation of this embodiment will be described. First, the case where the document shredder is used as usual will be described. If the user is an adult with thick fingers who knows how to handle the document shredding machine and there is no risk of use by children with thin fingers, there is no risk that the user's fingers will enter the first insertion slot 8, In addition, since there is little possibility that papers or plates that are too thick or papers exceeding the shredding capacity will be inserted into the first insertion port 8, there is no need to attach the spacer 17 to the recess 7. It can be ensured, and the document shredding machine is hardly overloaded. In the state where the spacer 17 is not attached to the recess 7 as described above, the first insertion is made more than the width X2 in the short direction of the second insertion port 18 compared to the state where the spacer 17 is attached. Since the width X1 in the short direction of the mouth 8 is wide, coupled with the fact that the paper is easily guided to the first insertion port 8 by the recess 7, the paper can be easily inserted into the first insertion port 8, The document shredder can be handled easily. For this reason, even when a plurality of folded or bent papers are shredded at a time, they can be easily inserted into the first insertion port 8.

  Next, the case where the spacer 17 is attached to the shredder body 1 will be described. If the user does not know how to handle the document shredding machine, or if there is a possibility that a child with a thin finger may use it, the user's finger may enter the first insertion slot 8, and Since there is a possibility that too thick papers or plates or papers exceeding the shredding ability may be inserted into the first insertion opening 8, the spacer 17 is attached to the recess 7. In the state where the spacer 17 is attached to the recess 7 in this way, the second insertion port is smaller than the width X1 in the short direction of the first insertion port 8 compared to the state where the spacer 17 is not attached. Since the width X2 in the short direction 18 is narrow, coupled with the fact that the introduction portion 19 is smaller than the concave portion 7, it is relatively difficult to insert paper into the second insertion port 18, and the document shredder is compared. Although it is difficult to handle, the width X2 in the short direction of the second insertion port 18 is narrower than the width X1 in the short direction of the first insertion port 8, and from the rotary blade 6 to the upper end of the first insertion port 8 The distance Y2 from the rotary blade 6 to the upper end of the second insertion port 18 can be made longer than the distance Y1, so that even a small finger of a young child can be inserted into the second insertion port 18 Can be inserted temporarily Even waiting, it is possible fingertip so as not reach the rotary blade 6, it is possible to improve the safety than not using the spacer 17. In addition, since it is difficult to insert a paper sheet that is too thick or exceeds the shredding capability into the second insertion slot 18, it is possible to prevent the document shredding machine from being overloaded. In the present embodiment, the upper end of the first insertion port 8 is the upper end of a region where the width is substantially constant at X1. (Strictly speaking, it is not completely constant because of the draft angle of the mold, etc., but it is smaller than the change in the width of the recess 7 and can be said to be substantially constant.) The second insertion port 18 In the present embodiment, the upper end of is the upper end of a region where the width is substantially constant at X2. (Strictly speaking, it is not completely constant because of the draft angle of the mold, etc., but it is smaller than the width change in the introduction portion 19 and can be said to be substantially constant.) Further, the distances Y1 and Y2 The position of the rotary blade 6 that defines the position is based on the upper end of the rotary blade body 16 exposed in the hole 11 from the blade window 13 of the guide member 3.

  Further, the lip portion 20 formed at one lower end of the long side of the second insertion port 18 is inserted into the first insertion port 8 with the spacer 17 attached to the recess 7. Thus, even if a finger or cardboard thicker (or thicker) than the width X2 in the short direction of the second insertion slot 18 is to be inserted into the second insertion slot 18, the lip portion 20 remains in the first insertion slot 8. Since the deformation of the spacer 17 is suppressed by abutting against the inner wall, fingers and thick paper thicker than the width X2 in the short direction of the second insertion port 18 cannot be forcibly inserted into the second insertion port 18, As a result, safety can be further improved, and overloading of the document shredder can be more reliably suppressed. In the document shredding machine, when paper or the like is jammed in the first insertion slot 8, paper scraps or the like can be discharged from the first insertion slot 8 by rotating the rotary blade 6 in the reverse direction. However, in the case of the present embodiment, there is a possibility that paper waste or the like is caught by the lip portion 20 inserted into the first insertion port 8 and is not discharged from the second insertion port 18. However, because the spacer 17 is not fixed to the concave portion 7, even if the paper dust or the like is caught on the lip portion 20, the paper waste or the like pushes the lip portion 20 and thus the spacer 17 upward. By removing the spacer 17, it is possible to remove the paper dust and the like from the first insertion port 8.

  As described above, when the spacer 17 is attached to the recess 7, the upper surface of the spacer 17 is the same as the upper surface of the upper outer shell body 2A or slightly higher than the upper surface of the upper outer shell body 2A. Since it is formed so as to be lowered, even if the spacer 17 is attached to the recess 7, the spacer 17 does not protrude from the upper outer shell 2A. Accordingly, even if the spacer 17 is attached to the shredding machine main body 1, the document shredding machine does not become unsightly in appearance, and the user carelessly removes the fingernail or the like from the spacer. The possibility of the spacer 17 being inadvertently detached from the concave portion 7 by being hooked on the edge of 17 can be reduced. That is, since the spacer 17 is structured so as not to be detached from the concave portion 7 unless it is removed with will, the document shredding machine of this embodiment can further improve safety.

  As described above, in the present invention, the outer shell 2 of the shredder body 1 having the rotary blade 6 provided therein is provided with the concave portion 7 having the slit-shaped first insertion port 8 formed in the bottom portion. The spacer 17 has a slit-like second insertion port 18, and the short width X 2 of the second insertion port 18 is set to the short width X 1 of the first insertion port 8. The distance Y2 from the rotary blade 6 to the upper end of the second insertion port 18 is from the rotary blade 6 to the upper end of the first insertion port 8 with the spacer 17 attached to the recess 7. Even if it is inserted into the second insertion port 18 even if it is a thin finger or the like of a young child, even if it can be inserted, the fingertip is It is possible to improve safety without reaching 6 Since apparently paper thickness exceeding shredding capacity is less likely inserted from the second insertion opening 18, in which it is possible to prevent the excessive load is applied to the paper shredder.

  In addition, a lip portion 20 that is inserted into the first insertion port 8 when the spacer 17 is attached to the recess 7 is formed at one lower end of the long side of the second insertion port 18. Even if a finger or paper thicker (or thicker) than the width X2 in the short direction of the second insertion slot 18 is inserted into the second insertion slot 18, the lip portion 20 is formed on the inner wall of the first insertion slot 8. Since the deformation of the spacer 17 is suppressed by abutting, the safety can be further improved and the overloading of the document shredding machine can be more reliably suppressed.

  In addition, this invention is not limited to the above embodiment, A various deformation | transformation implementation is possible within the range of the summary of invention. For example, in the above-described embodiment, the path for feeding paper by connecting the first insertion opening and the opening is formed to extend in the vertical direction, but the path is formed to extend in the oblique direction or the horizontal direction. It may be. In this case, in the above embodiment, the distance from the inlet of the first insertion port to the rotary blade and the distance from the inlet of the second insertion port to the rotary blade are the upper end of the first insertion port, the second insertion port. Defined by the upper end of the rotary blade and the upper end of the rotary blade exposed from the blade window of the guide member, the first insertion port, the second insertion port, and the rotary blade exposed from the blade window, respectively. The inlet end is defined as a reference. In addition, the definitions of the inlet side end portions of the first insertion port and the second insertion port also vary depending on the shapes of the first insertion port and the second insertion port. For example, if the first insertion port and the second insertion port have a gradient larger than the draft, and the width is wider on the inlet side, the strict definition is difficult, but the inlet side of the region where the gradient is almost constant It seems that the end can be used as the inlet end of the first insertion port or the second insertion port. Further, when the first insertion port and the second insertion port have a gradient larger than the draft, and the width is wider toward the rotary blade side, the position where the width becomes the narrowest is the first insertion port or the second insertion port. It becomes the entrance side end of the mouth.

It is a top view of the document shredding machine in the state where the spacer which shows one embodiment of the present invention is not attached. It is an A-B-C-D-E-F sectional view same as the above. FIG. 3 is an enlarged cross-sectional view of the main part of FIG. It is a top view of the document shredding machine in the state where the spacer which shows one embodiment of the present invention was attached. It is an A-B-C-D-E-F sectional view same as the above. It is an expanded sectional view of the principal part of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shredder machine body 2 Outer shell body 6 Rotary blade 7 Recessed part 8 1st insertion port 17 Spacer 18 2nd insertion port 20 Lip part X1 Short direction width of the 1st insertion port 8 X2 Short direction of the 2nd insertion port 18 Width Y1 Distance from the rotary blade 6 to the upper end (entrance side end) of the first insertion port 8 Y2 Distance from the rotary blade 6 to the upper end (entrance side end) of the second insertion port 18

Claims (4)

It has a shredder body, and the outer shell body of the shredder body has a recess and a slit-shaped first insertion port formed at the bottom of the recess, and rotates inside the outer shell body. In the document shredding machine provided with a blade,
The document shredding machine has a spacer attached to the recess, the spacer has a slit-like second insertion slot, and the short width of the second insertion slot is short of the first insertion slot. The distance from the rotary blade to the inlet side end of the second insertion port in a state where the spacer is attached to the concave portion is smaller than the width in the direction. A document shredding machine configured to be longer than a distance to a side end.   A lip portion is formed at at least one outlet side end portion of the long side of the second insertion port, and the lip portion is configured to be inserted into the first insertion port when the spacer is attached to the recess. The document shredding machine according to claim 1, wherein the document shredding machine is provided. A spacer that is attached to the recess of the shredder body having an outer shell having a recess formed at the bottom of the slit-shaped first insertion port and a rotary blade provided inside the outer shell,
The spacer has a slit-shaped second insertion port, and the width of the second insertion port in the short direction is narrower than the width of the first insertion port in the short direction, and the spacer is formed in the recess. In a mounted state, the distance from the rotary blade to the inlet side end of the second insertion port is configured to be longer than the distance from the rotary blade to the inlet side end of the first insertion port. A spacer characterized by that. A lip portion is formed at at least one outlet side end portion of the long side of the second insertion port, and the lip portion can be inserted into the first insertion port when the spacer is attached to the recess. The spacer according to claim 3, wherein the spacer is configured.

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