JP2005131581A - Shredder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means which detects accurately a full state of shredding waste even if a disc is contained as an object to be shredded. <P>SOLUTION: When the shredding waste falling from a shredding sector hits against a contact plate 43 at the condition of an initial position of a detected unit 39, the unit 39 swings in an arrow F direction, and the unit 39 is constructed so as to recover the initial position by the weight balance until the shredding waste slides from the contact plate 43 to a trash box 3, and reaches the full state. Further, when the shredding waste falls in a condition where the shredding waste is piled up until the vicinity of the detected unit 39, the unit 39 swings in an arrow E direction, but if when the shredding waste slides from the contact plate 43 and is piled up, a top of the mountain of shredding waste becomes higher than the height of the contact plate 43 at that time, the recovering operation to the initial position of the unit 39 is controlled by the shredding waste. When the regulation of the recovering operation forces a part of a detecting plate 45 to intrude into a detecting sector T of a photosensor 38 for a predetermined time, it is detected as a full state. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention belongs to the technical field of a shredder that makes it possible to shred a sheet body such as paper and a disk body, and particularly relates to a technique for detecting a full state of shredded waste.

  For example, a shredder that shreds a shredded object such as paper as described in Patent Document 1 below usually has a waste box for storing shredded waste generated by shredding the shredded object. A full detection device is provided for detecting that the chip is full of debris.

  As shown in FIG. 9, the conventional full detection device has a projector 50 and a light receiver 51 located on the left and right sides of the path where the shredded waste generated by the shredding operation falls above the waste box 52 and falls into the waste box 52. When the top of the trash mountain deposited in the trash box 52 reaches a predetermined height, the light output from the projector 50 is blocked by the presence of the trash mountain, so that the inside of the trash box 52 In some cases, a so-called translucent sensor is used to detect that shredded waste is full.

As another known fullness detection device, as shown in FIG. 10, the projector 53 and the light receiver 54 are arranged above the waste box 55 at substantially the same position and accumulated in the waste box 55. When the top of the scrap mountain reaches a predetermined height, the light output from the projector 53 is reflected from the scrap mountain, and the light receiver 54 receives the reflected light so that the shredded box 55 is shredded. Some are configured using a so-called reflective sensor that detects that the waste is full.
JP 2002-18302 A

  However, in the former fullness detection device, since the projectors and receivers 50 and 51 are arranged above the waste box 52, the height of the waste mountain when the full state is detected is higher than the upper edge of the waste box 52. Become. Therefore, when the waste box 52 is taken out of the shredder so as to discard the shredded waste, there is a problem that the shredded waste easily spills from the waste box 52.

  In the latter full detection device, normally, the height of the waste pile when detecting the full state is set lower than the upper edge of the waste bin 55, so that the above-mentioned problems are less likely to occur. In the case of a device capable of shredding a disk body such as a floppy disk (registered trademark, hereinafter referred to as FD) or a compact disk (hereinafter referred to as CD), the disk is often made of a black color material. Appropriate reflected light may not be obtained from shredded chips generated by chopping the disk.

  Further, when the light emitter 53 having a relatively small output (light intensity) is used in order to reduce the cost, light is output to a portion of the waste pile accumulated in the waste box 55 that is relatively far from the light emitter 53. This is difficult, and light is output to a portion relatively close to the wall of the trash box 55. Here, shredded scraps of paper or the like such as paper tend to be deposited so as to spread evenly over the entire waste box 55, and no particular problem arises. Since there is a tendency to accumulate in the vicinity of the fall point from the top, when the full state is detected, the top of the rubbish mountain is higher than the upper edge of the rubbish bin 55, and accurately It is difficult to detect fullness. In this way, if the full state cannot be detected accurately, when the mountain formed by the shredded trash that has been shredded and accumulated becomes high, the shredder gets caught in the shredding device that performs the shredding operation. There arises a problem that the disconnection operation cannot be performed reliably.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a shredder capable of accurately detecting a full state of shredded waste of a sheet body and a disk body.

  According to the first aspect of the present invention, there is provided a shredding portion disposed on the upper portion of the housing and shredding the sheet body and the disk body introduced from above and ejecting them as shredded waste, and the shredded waste discharged A detection unit that detects whether or not storage waste accumulated in the storage unit in the housing is full, and the detection unit is disposed at an appropriate position above the housing. A sensor unit that detects that shredded sheet material accumulated in a mountain shape has entered a predetermined detection region, and a sensor unit that is swingably supported by a horizontal axis provided in the housing. The sensor unit is configured to be predetermined from an obliquely upper side of one side surface of the storage unit toward the one side surface from a substantially upper center direction of the storage unit. Whether or not shredded debris is full using a detection medium with a detection area for a distance A remote sensor for remotely detecting, wherein the detected portion is disposed immediately below the shredded portion and substantially above the center of the storage portion, and when the shredded waste is discharged and dropped, A contact piece, a detected piece that can be detected by the remote sensor, and a swing base that is attached to the contact piece and the detected piece and is swingably supported by the horizontal shaft; The rocking base is swung by the abutting force of the chopped scraps of the disk body deposited on the abutting piece, and the detected piece enters the detection area from outside the detection area. It is a shredder.

  According to a second aspect of the present invention, in the shredder according to the first aspect, the contact piece and the detected piece are attached to the swing base portion at an acute angle in the swing direction. The base is provided with a weight balance portion that makes the contact piece substantially horizontal when opened.

  According to the first aspect of the present invention, the detected part is disposed immediately below the shredded part and substantially above the center of the storage part, and when the shredded waste is discharged and dropped, A contact piece, a detected piece that can be detected by the remote sensor, and a swing base that is attached to the contact piece and the detected piece and is swingably supported by the horizontal shaft; Since the rocking base is swung by the abutting force of the chopped scraps of the disk body deposited on the abutting piece, the detected piece enters the detection area from outside the detection area. In addition, it is possible to accurately detect the full state of the shredded waste of the sheet body and the disk body. Further, even when both layers of the sheet body and the disk body are mixed, the full state can be detected.

  According to the second aspect of the present invention, the contact piece and the detected piece form an acute angle in the swinging direction so that the full state can be detected without using the detected portion for the sheet body. When the detection piece is configured to be attached to the swing base and away from the detection area of the sensor unit, a weight balance portion is provided on the swing base so that the contact piece is in a substantially horizontal posture when opened. Therefore, it is not necessary to separately provide a device such as a motor for restoring the contact piece to a substantially horizontal posture when the contact piece is released after the contact of the shredded waste with the contact piece.

  Hereinafter, an embodiment of a shredder according to the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of the shredder of the present embodiment. In the following description, the direction of arrow A is referred to as the front.

  As shown in FIG. 1, the shredder 1 can cut not only paper sheets such as paper but also a disk body as a recording medium such as a floppy disk (registered trademark) or a compact disk, and is provided on the upper surface. The above-described shredded object thrown from the charging port 2 is shredded by a shredding portion 15 (see FIG. 3 and FIG. 4), which will be described later, disposed below the charging port 2, and by the shredding operation The generated shredded waste is an apparatus configured to accumulate in the waste box 3 stored below the shredded portion. FIG. 1 shows a state in which only the first and second cutters 28 and 29 described later of the shredded portion 15 are indicated by dotted lines, and the waste box 3 is pulled out from the shredder 1 main body.

  The shredder 1 is a housing whose upper surface is configured with an opening / closing lid 4 and whose front surface is an opening / closing door 5. The end of the open / close lid 4 is pivotally supported at its rear end, and the front side is opened upward so that the inside of the apparatus including the shredded portion 15 is exposed. On the upper surface of the opening / closing lid 4, a power button 6 for switching on / off the power of the shredder 1, a loading port 2 for loading a shredder object, and a detail for notifying that the shredding operation is being performed. When the shredding lamp 7 and the waste box 3 are full of shredded waste, or when paper exceeding the shredding capacity is thrown into the slot 2, the paper once drawn into the apparatus is discharged again. A stop / reverse lamp 8 is provided for informing this.

  FIG. 2 is a diagram showing the configuration of the portion of the slot 2, FIG. 2 (a) is a plan view of the guide member 9 and the disk slot guide plate 10 constituting the slot 2, and FIG. 2 (b) It is a BB line arrow directional view of Drawing 2 (a).

  As shown in FIG. 2, the insertion port 2 includes a funnel-shaped guide member 9 and a disk insertion guide plate 10 having a slope formed so that the opening narrows from the outside toward the shredded portion 15. It is configured. The disc insertion guide plate 10 has an opening posture (arrow C) for opening the opening portion of the guide member 9 and a closing posture (arrow D for closing the opening portion) on one inclined surface constituting the insertion port 2 of the guide member 9. ) With a screw 10a. Further, a plurality of guide holes 11 to 13 corresponding to the size of the disk to be shredded are formed at appropriate positions in the disk insertion guide plate 10.

  In such a structure of the insertion slot 2, when the paper sheet such as paper is shredded, the disk insertion guide plate 10 is opened and the sheet (sheet body) is inserted into the insertion slot 2. At this time, since the guide member 9 is formed in a funnel shape in cross section, a bundle of paper sheets can be easily input, and the input paper sheets are properly guided to the shredder 15. On the other hand, when the disk (disk body) is shredded, the disk insertion guide plate 10 is closed and the disk is inserted into the corresponding guide hole. As described above, when the disk is shredded, the disk insertion guide plate 10 is provided so as to close substantially the entire opening of the guide member 9 except for the guide holes 11 to 13 for guiding the insertion of the disk. Thus, it is possible to prevent disc fragments from being scattered from the slot 2 during shredding.

  Returning to FIG. 1, the front surface of the shredder 1 is provided with an opening / closing door 5 that opens and closes in a state where one side is pivotally supported. By opening the opening / closing door 5, the shredder 15 The waste bin 3 in which shredded waste is accumulated can be pulled out from the waste bin storage section 14 provided below the waste bin.

  Between the slot 2 and the trash box storage part 14, a shredding part 15 for shredding paper sheets and discs thrown into the slot 2 is disposed. FIG. 3 is a plan view showing the configuration of the shredder 15.

  As shown in FIG. 3, the shredder 15 includes a motor unit 16, a power transmission mechanism 17, a cutter unit 18, and a separator 19. The motor unit 16 includes a motor 23 attached to an inner wall surface of the frame 20 located on the back side of the main body frames 20 to 22 formed in a U shape in plan view, and a rotational driving force generated by the motor 23. And a reduction gear 24 that decelerates at a predetermined reduction ratio.

  The power transmission mechanism 17 transmits the output of the speed reducer 24 to the cutter unit 18, and the sprocket 25 attached to the output shaft of the speed reducer 24 and one end of the cutter unit 18 (first cutter 28 described later). , 26 and a chain 27 suspended on these sprockets 25, 26. As a result, the driving force is transmitted to the first cutter 28 via the power transmission mechanism 17.

  The cutter unit 18 includes a long first cutter 28 and a second cutter 29 that are rotatably supported by frames 21 and 22 located on both sides of the main body frames 20 to 22. The gears 30 and 31 are attached to the end portions of the first and second cutters 28 and 29 on the frame 21 side so that the gears 30 and 31 are engaged with each other. The first and second cutter members 28 and 29 are rotated in the reverse direction so as to rotate in the direction of each other as viewed from above.

  The first and second cutters 28 and 29 are formed at regular intervals with respect to a shaft body having a predetermined diameter, so that large-diameter portions having a constant thickness are formed at regular intervals in the axial direction. A plurality of chopping blades 32 and 33 are formed by drilling the large-diameter portion at regular intervals in the circumferential direction, and each chopping blade is placed in the gap between the chopping blades of the counterpart cutter in the chopping region L. It is arranged to enter. Further, as shown in FIG. 4, the recesses 34 and 35 between the chopping blades 32 and between the chopping blades 33 are formed in the crests and recesses in the circumferential direction so that the chopping blades mesh with each other in the chopping region L. The phase is set. In this manner, the shredded object is shredded by the engagement between the crest and the recess in the shredded region L.

  Returning to FIG. 3, the separator 19 has a predetermined portion inserted in a predetermined position in the circumferential direction in each gap between adjacent blades of the chopping blades 32 and 33 formed in the first and second cutters 28 and 29, respectively. This is a member having a structure for removing shredded scraps sandwiched between the gaps of the shredder blades 32 and 33 at the predetermined position. In FIG. 3, the support shaft 36 is a member for fixing the separator 19 to the main body frames 21 and 22. In FIG. 4, only the first and second cutters 28 and 29 are illustrated. Is omitted.

  In addition to the above configuration, the shredder 15 is provided with a full detection mechanism 37 that detects that shredder 3 is full of shredded waste. FIG. 4 is a side view showing the configuration of the full detection mechanism 37, and FIG. 5 is a perspective view of the detected unit 39. The direction of arrow A shown in FIG. 4 corresponds to the direction of arrow A shown in FIG.

  As shown in FIG. 4, the full detection mechanism 37 includes a photo sensor 38 and a detected unit 39.

  The photo sensor 38 is a main body frame 40 on the front surface side, and is attached to a substantially central portion in the left-right direction of the apparatus, and a light emitting unit that outputs light radially and a light receiving unit that receives reflected light at a position near the light emitting unit. And a reflection type sensor. The photosensor 38 has a detection level T that spreads radially from the light emitting point to a position that is spaced a predetermined distance, that is, a detection level in the light receiving unit, and is high when it should be determined that the shredded waste of the paper sheet is full. The height is lower than the upper edge of the waste box 3 and is set in the detection region T. Thereby, when the shredded waste of paper sheets is accumulated to the predetermined height, it is detected that the waste box 3 is full.

  The detected unit 39 is pivotally supported on a swing support shaft 41 spanned between the main body frames 21 and 22 on both sides below the first and second cutters 28 and 29, as shown in FIG. As shown in FIG. 5, the bearing member 42, the contact plate 43, the support member 44, and the detection plate 45 are configured. The bearing member 42, the contact plate 43, and the detection plate 45 correspond to the swing base, the contact piece, and the detected piece, respectively, in the claims.

  The bearing member 42 is a substantially V-shaped member that performs a bearing function on both the left and right sides of the shredder 1 so that the detected unit 39 can swing around the swing support shaft 41. Usually, the bearing member 42 has a substantially horizontal posture such that the abutting plate 43 is positioned immediately below the shredding position L (arrow E in FIG. 4) due to its weight balance. A through hole 42a into which a balance member for balancing the weight is inserted is formed. Although the balance member is not shown in the figure, a member having a required shape can be adopted. However, in this embodiment, the balance member is a long-axis member, and both ends thereof are fitted and supported in the through hole 42a.

  The contact plate 43 is a long plate-like member attached to one extending portion 42b of the bearing member 42, and is positioned immediately below the chopping position L when released (free state). Shredded waste that has fallen from the contact. Even if the shredded object is placed on either the left or right side of the loading port 2, the shredded object that falls is in contact with the contact plate 43, and the accumulated shredded waste is full in the waste box 3. Even when the accumulated portion is biased to the left and right when the material is deposited on the surface, the accumulated portion restricts the swing (restoration) of the detected unit 39 to the original position (this will be described later) The contact plate 43 is formed so as to extend from the substantially right end to the left end of the cutter unit 18.

  The support member 44 is a long member having a substantially L-shaped cross section with both ends attached to the other extended portion 42 c of the bearing member 42.

  The detection plate 45 is attached to one surface of the support member 33 by screwing so as to form a substantially V-shape with the contact plate 43 when viewed from the side surface. This is a plate-like member, and at least the surface facing the photosensor 38 is subjected to a light reflection process or manufactured from a material having a high light reflectivity. The detection plate 45 has its lower end entering the detection region T of the photosensor 38 when the detected unit 39 swings around the swing support shaft 41 from the posture indicated by the arrow E as indicated by the arrow F. Is configured to do. The detection plate 45 only needs to have a part that enters the detection region T of the photosensor 38 when the detected unit 39 is swung by a predetermined angle. Therefore, the detection plate 45 is shorter in the left-right direction than the support member 44 and the like. It is said that.

  Here, the full state of the shredded waste of paper sheets can be detected only by the photo sensor 38 without using the detection plate 45, so that the detection plate 45 is relatively far from the detection region T. The detection plate 45 is attached in a substantially V shape with an acute angle with respect to the contact plate 43 when viewed from the side.

  Next, a paper full detection operation by the full detection mechanism 37 and a full detection operation when a disc or a mixture of paper and a disc is described. FIG. 6 is a diagram schematically illustrating the configuration of the detected unit 39 and schematically illustrating the full detection operation of the full detection mechanism 37 including the operation of the detected unit 39.

  First, when the shredding operation is not performed by the shredding unit 15 and the waste box 3 is not full due to shredded paper or shredded waste of a disk or a mixture of paper and disk The abutting plate 43 is positioned substantially directly below the shredding area L (see FIG. 4) by the first and second cutters 28 and 29 due to the weight balance of the detected unit 39. Hereinafter, the posture of the detected unit 39 when the contact plate 43 is located is referred to as an initial posture.

  Further, as shown in FIG. 6A, when shredded waste falls from the shredded region L onto the contact plate 43, as shown in FIG. The detection unit 39 swings in the direction of arrow F. Thereby, shredded scraps slide down from the contact plate 43 toward the waste box 3. At this time, even if the lower end portion of the detection plate 44 instantaneously enters the detection region T of the photosensor 38, as described later, the detection plate 44 is full when it continuously enters the detection region T for a certain period of time. Since it is set to be detected as a state, in this case, it is not detected as a full state. Then, until the shredded waste in the waste box 3 becomes full, as shown in FIG. 6C, the detected unit 39 is restored to its initial posture due to its weight balance.

  Here, as described above, shredded waste made only of paper tends to accumulate evenly and almost no waste pile is formed. Therefore, the full detection operation is rarely performed by the detected plate 45, and the upper surface of the shredded waste is When entering the detection area T of the photo sensor 38, it is detected that the waste box 3 is full.

  On the other hand, as shown in FIG. 6D, when the disc or shredded waste in which the disc and paper are mixed accumulates in the waste box 3 up to the vicinity of the detected unit 39, it is shown in FIG. 6E. As described above, the detected unit 39 swings in the direction of the arrow E due to the force received from the shredded scrap that has fallen, and the shredded scrap slides down from the contact plate 43 toward the waste box 3 and accumulates. However, as shown in FIG. 6 (f), when the summit of the shredded chips accumulated by sliding down becomes higher than the height position of the contact plate 43 at that time, the presence of the shredded scraps causes detection. The restoring operation of the unit 39 to the initial posture is restricted. Then, when the restoring operation of the initial posture of the detected unit 39 is restricted and a part of the detection plate 45 enters the detection region T of the photosensor 38 for a predetermined time, the detection plate 45 causes the light from the light emitting unit to enter the light receiving unit. Since it is reflected for a predetermined time, it is detected that the waste box 3 is full. As a result, it is possible to detect a full state of a disk or a mixture of disk and paper that tends to concentrate around the dropping point from the shredding unit 15 or a mixture of disk and paper.

  FIG. 7 is a block diagram showing an electrical configuration of the shredder 1. As shown in FIG. 7, the shredder 1 includes a power button 6, a shred lamp 7, a stop / reverse lamp 8, a motor 23, a first cutter 28, and a photo sensor 38 corresponding to those shown in FIGS. 1 to 4. And a control unit 46 composed of a microcomputer incorporating a storage unit composed of a ROM for storing a control program and a RAM for temporarily storing data.

  The control unit 46 functionally turns on the detection signal receiving unit 47 and the shredding control unit 48 so that the driving of the shredding lamp 7, the stop / reverse rotation lamp 8, the motor 23, and the photosensor 38 is controlled in association with each other. And a control unit 49.

  The detection signal receiving unit 47 receives a closing detection signal output from a closing detection sensor (not shown) when a shredded object is inserted into the charging slot 2 and also outputs a full detection signal ( A detection signal of the detection plate 45 or the shredded waste of paper).

  When the input signal is received by the detection signal receiving unit 47, the shredding control unit 48 rotates the motor 23 forward so that the shredding unit 15 performs the shredding operation, and the detection signal receiving unit 47 performs a predetermined time. When the full detection signal is continuously received (for example, 3 seconds), the shredding operation by the shredding unit 15 is prohibited. At that time, when the shredding operation by the shredding unit 15 is performed at the time when the predetermined time has elapsed, the shredding control unit 48 causes the motor to discharge the thrown shredded object from the slot 2 to the outside. 23 is reversely rotated. Further, when the reception state of the full detection signal does not continue for the predetermined time, the shredding control unit 48 permits the shredding operation by the shredding unit 15. The shredding control unit 48 includes a timer (not shown) for measuring the reception time of the full detection signal.

  When the shredding control unit 48 stops the shredding operation of the shredding unit 15, the lighting control unit 49 turns on the stop / reverse lamp 7 provided on the upper surface of the shredder 1 to notify that fact. It is something to be made.

  FIG. 8 is a flowchart showing the fullness detection process of the shredder 1.

  As shown in FIG. 8, when the detection signal receiving unit 47 receives the insertion detection signal (YES in Step # 1), the shredding control unit 48 starts measuring the reception time of the insertion detection signal by the timer (Step S1). # 3). Then, it is determined whether or not the insertion detection signal is being received by the detection signal receiving unit 47 (step # 5). When not being received (NO in step # 5), the shredding control unit 48 sets the timer Is reset (YES in step # 5), the shredding control unit 48 counts up the timer (step # 7).

  Next, the shredding control unit 48 determines, based on the count value of this timer, whether or not the reception time of the input detection signal by the detection signal receiving unit 47 has continued for a predetermined time (step # 11), and the reception time If it does not continue for a predetermined time (NO in step # 11), the process returns to step # 5, while the reception time continues for a predetermined time, that is, the detection plate 45 enters the detection region T for a predetermined time. Then (YES in step # 11), the shredding control unit 48 determines that the waste box 3 is full (step # 13), and in order to prohibit shredding operation by the shredding unit 15, the motor 23 Is not performed or the motor 23 is rotated in the reverse direction (step # 15). Further, the lighting control unit 49 causes the stop / reverse lamp 8 to blink to notify that the shredding operation of the shredding unit 15 is prohibited by the shredding control unit 48 (step # 17).

  As described above, the detected unit 39 having the above-described configuration is provided, and when the accumulated crest of the shredded chips becomes higher than the height position of the contact plate 43 when the crest is swung, the presence of the shredded chips is present. Thus, the restoration operation of the detected unit 39 to the initial posture is restricted, and when the part of the detection plate 45 enters the detection region T of the photosensor 38 for a predetermined time due to the restriction of the restoration operation, the trash box 3 is full. Since it is configured to be detected as having become, the shredded disc of the disc or the shredded waste of the paper and the disc that tends to be concentrated around the dropping point from the shredded portion 15 and the shredded disc Even if waste is mixed, the full state of shredded waste can be accurately detected.

  Further, in the detected unit 39 in which the detection plate 45 is attached in a substantially V shape with an acute angle with respect to the contact plate 43, the balance is set so that the contact plate 43 is in a horizontal posture immediately below the shredder 15. Since the weight balance is achieved by the members, the contact plate 43 in the open state is restored to a substantially horizontal posture after the shredded scraps contact the contact plate 43 without providing a driving device such as a motor. be able to.

  In addition, this invention can employ | adopt not only the above-mentioned embodiment but following modification (1)-(4).

  (1) In the above embodiment, the photo sensor 38 is used. However, the present invention is not limited to this, and it is also possible to use a sensor that uses infrared rays, ultrasonic waves, or the like as a detection medium.

  (2) Although the detection plate 45 having light reflectivity is adopted as the detection target, instead of the detection plate 45, for example, when a light emitting device having a relatively large output (light intensity) is used. Adopting a detection plate that has a light absorption property that absorbs most of the light, has substantially the same shape as the detection plate 4 and operates in a similar manner, and receives reflected light from shredded waste when it is not full It is configured to detect the full state by detecting the non-full state, and when the full state is reached, the detection plate absorbs the light output from the projector toward the shredder and blocks the reflection. Other members may be employed.

  (3) Considering that paper dust and disk powder generated by the shredding operation are charged by static electricity generated by the shredding operation, and the charged dust floats on the waste box 3 and adheres to the photosensor 38, For example, when the detection plate 45 is formed to be long and close to a full state, the detection plate 45 may block the dust from the photosensor 38. When the detection plate 45 is caught on the waste bin 3 when the waste bin 3 is taken out from the waste bin storage section 14 by forming the detection plate 45 long, the detection plate 45 is made of, for example, polycarbonate or rubber. For example, it may be made of a material that is flexible and difficult to be charged.

  (4) In the above-described embodiment, the detection target member detected by the photosensor 38 is configured by separate members (the member having the bearing member 42 and the contact plate 43 and the detection plate 45). It may be formed integrally with a portion.

1 is an external perspective view showing an embodiment of a shredder according to the present invention. (A) is a top view of the guide member which comprises a slot, (b) is a BB arrow directional view of (a). It is a top view which shows the structure of a shredding part. It is a side view which shows the structure of a full detection mechanism. It is a perspective view of a to-be-detected unit. It is the figure which represented the structure of the to-be-detected unit schematically, and showed the full detection operation | movement of the full detection mechanism including operation | movement of a to-be-detected unit typically. It is a block diagram which shows the electrical structure of a shredder. It is a flowchart which shows the shredder full detection process. It is a figure which shows the structure of the conventional full detection apparatus. It is a figure which similarly shows the structure of the conventional full detection apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shredder 2 Input port 3 Waste box 8 Stop / reverse lamp 9 Guide member 10 Input guide plate 11-13 Guide hole 14 Waste box storage part 15 Shred part 18 Cutter unit 28 1st cutter 29 2nd cutter 32, 33 Shred Blade 37 Full detection mechanism 38 Photo sensor 39 Detected unit 43 Contact plate 44 Detection plate 46 Control unit 47 Detection signal reception unit 48 Shredding control unit 49 Lighting control unit

Claims (2)

The upper part of the casing that is disposed in the upper part and chops the sheet body and the disk body that are thrown in from above and discharges them as chopped scraps and stores the discharged chopped scraps in a stacked state. A shredder comprising a detection unit for detecting whether or not storage waste accumulated in the storage unit is full,
The detection unit is provided at an appropriate position on the upper part of the casing, and is provided in the casing, and a sensor unit that detects that shredded sheet material accumulated in a mountain shape has entered a predetermined detection area. It is composed of a detected part that is swingably supported on a horizontal axis and can be moved back and forth with respect to the detection area of the sensor part,
The sensor unit is filled with shredded waste using a detection medium having a detection area for a predetermined distance from an obliquely upper side on one side surface of the storage unit toward the one side surface from a substantially upper center direction of the storage unit. Is a remote sensor that remotely detects the presence or absence of
The detected portion is disposed immediately below the shredded portion and substantially above the center of the storage portion, and a contact piece with which the shredded waste comes into contact when the shredded waste is discharged and dropped by the remote sensor. Detectable piece to be detected, and the contact piece and the piece to be detected are attached, and a swinging base is provided that is swingably supported by the horizontal axis, The shredder, wherein the swing base is swung by a contact force to the contact piece, and the detected piece enters the detection region from outside the detection region.   The contact piece and the detected piece are attached to the swing base portion at an acute angle in the swing direction, and the swing base portion has a weight balance in which the contact piece is in a substantially horizontal posture when opened. The shredder according to claim 1, wherein a portion is provided.

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