Binding unit, sheet processing device, and image forming device provided with them
AssigneeCanon Finetech Nisca Inc.
InventorsMasaya Takahashi, Yusuke Mitsui
Life of this patent
Estimating the term…
Abstract
To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.
Claims14
A binding unit that crimp-binds placed sheets, comprising:
- a pair of first and second pressurizing parts disposed on front and back sides of placed sheets and configured to crimp-bind the placed sheets;
- a water reservoir provided on a back side of the first pressurizing part and configured to store water to be applied to the sheets;
- and
- a pressurizing member that pressurizes the water in the water reservoir to apply the water to a sheet crimping range, wherein
- the pair of first and second pressurizing parts includes first pressure teeth and second pressure teeth that crimp-bind the sheets interposed therebetween, and
- the water reservoir and the pressurizing member are provided on the back side of the first pressure teeth.
A binding that crimp-binds placed sheets, comprising:
- a pair of first and second pressurizing parts disposed on front and back sides of placed sheets and configured to crimp-bind the placed sheets;
- a water reservoir provided on a back side of the first pressurizing part and configured to store water to be applied to the sheets;
- and
- a pressurizing member that pressurizes the water in the water reservoir to apply the water to a sheet crimping range, wherein
- a water replenishment pump part that replenishes the water reservoir with water is provided in a frame in which a first pressure teeth and the water reservoir provided on a back side of the first pressure teeth are positioned so as to be adjacent to the first pressure teeth and the water reservoir, and
- the water replenishment pump part includes a water replenishment tank part that stores water for replenishment, a water replenishment piston part that supplies water from the water replenishment tank part, a water replenishment head part that moves the water replenishment piston part, and a water replenishment joint part that joints the water replenishment tank part and the water reservoir and replenishes the water reservoir provided on the back side of the first pressure teeth with water.
A binding unit that crimp-binds placed sheets, comprising:
- a pair of first and second pressurizing parts disposed on front and back sides of placed sheets and configured to crimp-bind the placed sheets;
- a water reservoir provided on a back side of the first pressurizing part and configured to store water to be applied to the sheets;
- and
- a pressurizing member that pressurizes the water in the water reservoir to apply the water to a sheet crimping range, wherein
- the pair of first and second pressurizing parts includes first pressure teeth and second pressure teeth that crimp-bind the sheets interposed therebetween, and
- the water reservoir is a cylinder, and the pressurizing member is a piston to be inserted into the cylinder for pressurization.
Dependencies are inferred from the claim text.