CA2721620A1 - Shredder - Google Patents
Shredder Download PDFInfo
- Publication number
- CA2721620A1 CA2721620A1 CA2721620A CA2721620A CA2721620A1 CA 2721620 A1 CA2721620 A1 CA 2721620A1 CA 2721620 A CA2721620 A CA 2721620A CA 2721620 A CA2721620 A CA 2721620A CA 2721620 A1 CA2721620 A1 CA 2721620A1
- Authority
- CA
- Canada
- Prior art keywords
- thickness
- article
- detector
- throat
- shredder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/06—Selection or use of additives to aid disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/04—Safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/088—Means for treating work or cutting member to facilitate cutting by cleaning or lubricating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
- B02C2018/0015—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents for disintegrating CDs, DVDs and/or credit cards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
- B02C2018/0023—Switching devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C2018/164—Prevention of jamming and/or overload
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C2018/166—Lubricating the knives of the cutting mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C2018/168—User safety devices or measures in shredders
Abstract
A shredder is disclosed. The shredder includes a housing having a throat for receiving at least one article to be shredded, and a shredder mechanism received in the housing and including an electrically powered motor and cutter elements. The shredder mechanism enables the at least one article to be shredded to be fed into the cutter elements. The motor is operable to drive the cutter elements so that the cutter elements shred the articles fed therein.
The shredder also includes a detector that is configured to detect a thickness of the at least one article being received by the throat, and a controller that is operable to perform a predetermined operation responsive to the detector detecting that the thickness of the at least one article is at least equal to a predetermined maximum thickness.
The shredder also includes a detector that is configured to detect a thickness of the at least one article being received by the throat, and a controller that is operable to perform a predetermined operation responsive to the detector detecting that the thickness of the at least one article is at least equal to a predetermined maximum thickness.
Claims (15)
1. A shredder comprising: a housing having a throat open to an exterior of the housing for permitting a user to feed at least one article to be shredded into the throat;
a shredder mechanism received in the housing and including an electrically powered motor and cutter elements, the shredder mechanism enabling the at least one article fed into the throat to be shredded to be fed into the cutter elements and the motor being operable to drive the cutter elements so that the cutter elements shred the articles fed therein; a thickness detector configured to detect a thickness between opposing major surfaces of the at least one article being received by the throat, the detector being configured to detect a range of varying thicknesses including a predetermined maximum thickness; and a progressive indicator system having a visual or audible output and configured to output a range of visual or audible signals to a user of the shredder via the visual or audible output, the range of visual or audible signals corresponding to the range of thicknesses detected by the thickness detector and including a maximum thickness signal corresponding to the predetermined maximum thickness; wherein the progressive indicator system is configured to output a visual or audible signal within the range thereof corresponding to the thickness of the at least one article detected by the thickness detector.
a shredder mechanism received in the housing and including an electrically powered motor and cutter elements, the shredder mechanism enabling the at least one article fed into the throat to be shredded to be fed into the cutter elements and the motor being operable to drive the cutter elements so that the cutter elements shred the articles fed therein; a thickness detector configured to detect a thickness between opposing major surfaces of the at least one article being received by the throat, the detector being configured to detect a range of varying thicknesses including a predetermined maximum thickness; and a progressive indicator system having a visual or audible output and configured to output a range of visual or audible signals to a user of the shredder via the visual or audible output, the range of visual or audible signals corresponding to the range of thicknesses detected by the thickness detector and including a maximum thickness signal corresponding to the predetermined maximum thickness; wherein the progressive indicator system is configured to output a visual or audible signal within the range thereof corresponding to the thickness of the at least one article detected by the thickness detector.
2. A shredder according to claim 1, wherein the visual or audible output of the progressive indicator system has a plurality of indicators, wherein each indicator is associated with a corresponding predetermined thickness of the at least one article within said range thereof, the plurality of indicators including a maximum thickness indicator corresponding to the predetermined maximum thickness, wherein the progressive indicator system activates the indicator associated with its respective corresponding predetermined thickness based on the detector detecting that the thickness of the at least one article is at least equal to the corresponding predetermined thickness.
3. A shredder according to claim 2, wherein visual or audible output of the progressive indicator system comprises a plurality of lights.
4. A shredder according to claim 3, wherein the plurality of lights comprises a green light and a red light, the green light being associated with a thickness that is below the predetermined maximum thickness, and the red light being associated with the predetermined maximum thickness.
5. A shredder according to claim 4, wherein the plurality of lights further comprises a yellow light, the yellow light being associated with a thickness that is in between the thickness associated with the green light and the thickness being associated with the red light.
6. A shredder according to claim 2, wherein the plurality of indicators of the progressive indicator system comprises a plurality of audible indicators.
7. A shredder according to claim 1, wherein the detector comprises a contact member that extends into the throat and is actuated in response to the article being inserted into the throat.
8. A shredder according to claim 7, wherein the detector further comprises a strain gauge configured to measure movement of the contact member and communicate the movement to the controller.
9. A shredder according to claim 7, wherein the detector further comprises a piezoelectric sensor configured to measure movement of the contact member and communicate the movement to the controller.
10. A shredder according to claim 7, wherein the detector further comprises an optical sensor configured to measure movement of the contact member and communicate the movement to the controller.
11. A shredder according to claim 10, wherein the optical sensor comprises an infrared LED and a dual die infrared receiver configured to detect the direction and amount of the movement.
12. A shredder according to claim 1, further comprising a controller configured to disable operation of the cutter elements in the shredding direction responsive to the detector detecting that the thickness of the at least one article is at least equal to the predetermined maximum thickness.
13. A shredder according to claim 12, wherein the detector is also configured to detect a presence of the at least one article to be shredded being received by the throat, and wherein the controller is configured to operate the motor to drive the cutter elements in the shredding direction responsive to the detector detecting both the presence of the at least one article to be shredded being received by the throat and that the thickness thereof is less than the predetermined maximum thickness.
14. A shredder according to claim 12, further comprising a presence detector configured to detect a presence of the at least one article to be shredded being received by the throat, wherein the controller is configured to operate the motor to drive the cutter elements in the shredding direction responsive to the presence detector detecting the presence of the at least one article to be shredded being received by the throat.
15. A shredder according to claim 14, wherein the controller is configured to operate the motor to drive the cutter elements in the shredding direction responsive to both the presence detector detecting the presence of the at least one article to be shredded being received by the throat and the thickness sensor detecting that the thickness thereof is less than the predetermined maximum thickness.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/385,864 US7798435B2 (en) | 2006-03-22 | 2006-03-22 | Shredder with oiling mechanism |
US11/385,864 | 2006-03-22 | ||
US11/444,491 | 2006-06-01 | ||
US11/444,491 US7631822B2 (en) | 2004-09-10 | 2006-06-01 | Shredder with thickness detector |
CA2645569A CA2645569C (en) | 2006-03-22 | 2007-03-22 | Shredder |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2645569A Division CA2645569C (en) | 2006-03-22 | 2007-03-22 | Shredder |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2721620A1 true CA2721620A1 (en) | 2007-09-27 |
CA2721620C CA2721620C (en) | 2012-01-31 |
Family
ID=38268807
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2721620A Active CA2721620C (en) | 2006-03-22 | 2007-03-22 | Shredder |
CA2645569A Active CA2645569C (en) | 2006-03-22 | 2007-03-22 | Shredder |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2645569A Active CA2645569C (en) | 2006-03-22 | 2007-03-22 | Shredder |
Country Status (8)
Country | Link |
---|---|
US (11) | US7631822B2 (en) |
EP (3) | EP2221107B1 (en) |
JP (1) | JP5439167B2 (en) |
CN (4) | CN101804373B (en) |
AU (1) | AU2007226867B2 (en) |
CA (2) | CA2721620C (en) |
DE (2) | DE202007019110U1 (en) |
WO (1) | WO2007109753A2 (en) |
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