Trimming apparatus and bookbinding apparatus provided with the same

• US 20100278617A1
• Filed: 04/30/2010
• Published: 11/04/2010
• Est. Priority Date: 05/01/2009
• Status: Active Grant

• Current Assignee: Nisca Corporation (Canon Inc.)
• Original Assignee: Nisca Corporation (Canon Inc.)
• Inventors: Ueda, Naoki, Maruyama, Suguru, Nagasawa, Keiichi, Takahashi, Sei, Sano, Kazuhide, Orii, Hideki
• Granted Patent: US 8,398,354 B2
• Time in Patent Office: Days
• US Class Current: 412/16
• CPC Class Codes: B26D 1/08 of the guillotine type
• CPC Class Codes: B26D 2007/202 Rollers or cylinders being pivoted during operation
• CPC Class Codes: B26D 7/025 acting upon planar surfaces B26D7/04 takes precedence
• CPC Class Codes: B26D 7/088 by cleaning or lubricating sterilizing B26D1/00
• CPC Class Codes: B26D 7/20 Cutting beds B26D7/018 takes precedence; supporting beds for severing by means of a fluid jet B26F3/008
• CPC Class Codes: B42C 19/02 starting with single sheets
• CPC Class Codes: B42C 5/00 Preparing the edges or backs of leaves or signatures for binding
• CPC Class Codes: Y10T 83/4841 With resilient anvil surface
• CPC Class Codes: Y10T 83/9312 Rotatable type

Abstract

To provide a trimming apparatus that does not stain a fore edge end by an adhesive adhering to a blade receiving surface in trimming a bunch of sheets subjected to bookbinding using the adhesive, the trimming apparatus has a transport path 33 for feeding a bunch of sheets to a predetermined trimming position G, trimming blade 65x disposed in the trimming position, bunch position changing means 64 disposed in the transport path to change a position of the bunch of sheets in the trimming position, blade receiving member 67 disposed opposite to the trimming blade with the bunch of sheets in the transport path therebetween, and driving means Mc traveling between a cut position Cp for bringing the trimming blade into contact with the blade receiving member and a spaced waiting position Wp, where in the blade receiving member are set first and second, at least two, blade receiving areas with different blade receiving surfaces coming into contact with the trimming blade, while shift means MS for shifting positions between the first and second blade receiving areas is provided.

Claims

1. A sheet bunch trimming apparatus for trimming and cutting a bunch of sheets subjected to bookbinding using an adhesive, comprising:

a transport path for feeding a bunch of sheets to a predetermined trimming position;

a trimming blade disposed in the trimming position;

a bunch position changing means disposed in the transport path to change a position of the bunch of sheets in the trimming position;

a blade receiving member disposed opposite to the trimming blade with the bunch of sheets in the transport path therebetween; and

driving means traveling between a cut position for bringing the trimming blade into contact with the blade receiving member and a spaced waiting position,

wherein in the blade receiving member are set first and second, at least two, blade receiving areas with different blade receiving surfaces coming into contact with the trimming blade,

while shift means for shifting positions between the first and second blade receiving areas is provided, and

control means for controlling the shift means faces the first blade receiving area and second blade receiving area of the blade receiving member selectively to the trimming position corresponding to a trimming side of the bunch of sheets in a position changed by the bunch position changing means.

2. The trimming apparatus according to claim 1, wherein in the trimming position are provided a backup member for supporting the bunch of sheets, and trimming edge pressing means for pressing the bunch of sheets against the backup member to hold, and

the blade receiving member adjoins to the backup member and is disposed so that one of the first and second blade receiving areas comes into contact with a sheet surface of the bunch of sheets.

3. The trimming apparatus according to claim 1, wherein the blade receiving member is made circular or polygonal in cross section, and is axially supported by an apparatus frame to be rotatable, and

the control means varies an angular position of the blade receiving member corresponding to the trimming side of the bunch of sheets in a position changed by the bunch position changing means.

4. The trimming apparatus according to claim 1, wherein a debris storing portion for storing trimmed paper pieces is provided below the blade receiving member, and

the control means shifts the position of the blade receiving member to a direction for guiding trimmed paper pieces to the debris storing portion in varying a blade receiving position of the blade receiving member.

5. The trimming apparatus according to claim 1, wherein the control means moves the blade receiving member back and forth in varying a blade receiving position of the blade receiving member to cause vibration, and by the vibration, drops trimmed paper pieces adhering to the blade receiving member.

6. A bookbinding apparatus comprising:

adhesive applying means for applying an adhesive to a back portion of a bunch of sheets;

cover fastening means for fastening a cover sheet to the back portion of the bunch of sheets with the adhesive applied thereto; and

a trimming apparatus for trimming and aligning an outer edge of the bunch of sheets fed from the cover fastening means,

wherein the trimming means has a configuration as described in claim 1.

7. A bookbinding apparatus comprising:

adhesive applying means for applying an adhesive to a back portion of a bunch of sheets;

cover fastening means for fastening a cover sheet to the back portion of the bunch of sheets with the adhesive applied thereto; and

a trimming apparatus for trimming and aligning an outer edge of the bunch of sheets fed from the cover fastening means,

wherein the trimming means has a configuration as described in claim 2.

8. A bookbinding apparatus comprising:

adhesive applying means for applying an adhesive to a back portion of a bunch of sheets;

cover fastening means for fastening a cover sheet to the back portion of the bunch of sheets with the adhesive applied thereto; and

a trimming apparatus for trimming and aligning an outer edge of the bunch of sheets fed from the cover fastening means,

wherein the trimming means has a configuration as described in claim 3.

9. A bookbinding apparatus comprising:

adhesive applying means for applying an adhesive to a back portion of a bunch of sheets;

cover fastening means for fastening a cover sheet to the back portion of the bunch of sheets with the adhesive applied thereto; and

a trimming apparatus for trimming and aligning an outer edge of the bunch of sheets fed from the cover fastening means,

wherein the trimming means has a configuration as described in claim 4.

10. A bookbinding apparatus comprising:

adhesive applying means for applying an adhesive to a back portion of a bunch of sheets;

cover fastening means for fastening a cover sheet to the back portion of the bunch of sheets with the adhesive applied thereto; and

a trimming apparatus for trimming and aligning an outer edge of the bunch of sheets fed from the cover fastening means,

wherein the trimming means has a configuration as described in claim 5.

11. The bookbinding apparatus according to claim 6, wherein the trimming apparatus performs three-direction trimming for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, or performs two-direction trimming for trimming one of the upper-edge portion and the lower-edge portion, and the fore-edge portion.

12. The bookbinding apparatus according to claim 7, wherein the trimming apparatus performs three-direction trimming for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, or performs two-direction trimming for trimming one of the upper-edge portion and the lower-edge portion, and the fore-edge portion.

13. The bookbinding apparatus according to claim 8, wherein the trimming apparatus performs three-direction trimming for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, or performs two-direction trimming for trimming one of the upper-edge portion and the lower-edge portion, and the fore-edge portion.

14. The bookbinding apparatus according to claim 9, wherein the trimming apparatus performs three-direction trimming for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, or performs two-direction trimming for trimming one of the upper-edge portion and the lower-edge portion, and the fore-edge portion.

15. The bookbinding apparatus according to claim 10, wherein the trimming apparatus performs three-direction trimming for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, or performs two-direction trimming for trimming one of the upper-edge portion and the lower-edge portion, and the fore-edge portion.

16. The bookbinding apparatus according to claim 6, wherein the trimming apparatus is configured to trim in three directions for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, and the control means trims the upper-edge portion and the lower-edge portion of the bunch of sheets using the first blade receiving area, and then, trims the fore-edge portion using the second blade receiving area.

17. The bookbinding apparatus according to claim 7, wherein the trimming apparatus is configured to trim in three directions for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, and the control means trims the upper-edge portion and the lower-edge portion of the bunch of sheets using the first blade receiving area, and then, trims the fore-edge portion using the second blade receiving area.

18. The bookbinding apparatus according to claim 8, wherein the trimming apparatus is configured to trim in three directions for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, and the control means trims the upper-edge portion and the lower-edge portion of the bunch of sheets using the first blade receiving area, and then, trims the fore-edge portion using the second blade receiving area.

19. The bookbinding apparatus according to claim 9, wherein the trimming apparatus is configured to trim in three directions for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, and the control means trims the upper-edge portion and the lower-edge portion of the bunch of sheets using the first blade receiving area, and then, trims the fore-edge portion using the second blade receiving area.

20. The bookbinding apparatus according to claim 10, wherein the trimming apparatus is configured to trim in three directions for trimming an upper-edge portion, a lower-edge portion and a fore-edge portion of the bunch of sheets with the cover fastened thereto, and the control means trims the upper-edge portion and the lower-edge portion of the bunch of sheets using the first blade receiving area, and then, trims the fore-edge portion using the second blade receiving area.