JPH11255415A - Stapler and sheet processing apparatus using the same - Google Patents

Abstract

(57) [Summary] (Corrected) [PROBLEMS] To provide a stapler capable of safely and smoothly attaching and detaching a needle holder to and from a magazine section, and a sheet processing apparatus using the same. A stapler having a guide member (6) for guiding a direction of attaching and detaching a needle holder 5 near a magazine portion 4c. On the free end side of the guide member 6, it is possible to have a palm rest portion 9 which allows the palm of an operator's hand to be abutted when pulling out the needle holder 5 from the magazine portion 4c. Also, a sheet processing apparatus for performing stapling processing on sheets stacked and discharged on a tray, wherein the stapler is configured such that the stapling section is below the sheet, and the staple bending section is above the sheet, and the stapler is used. A mounted sheet processing device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a stapler and a sheet processing apparatus using the same.

[0002]

2. Description of the Related Art There have been various configurations of sheet processing apparatuses in which sheets discharged from an image forming apparatus such as a printer or a copying machine are stacked on a tray and stapled on the stacked sheets. Proposed.

[0003]

Conventionally, in this type of sheet processing apparatus, a stapler is mounted so that staples are driven from above, so that, for example, an image forming apparatus having a configuration in which a print surface is discharged downward is discharged. When a sheet processing apparatus is used in connection with the apparatus, it is necessary to invert the sheet and discharge it to a stapling tray before discharging the sheet from the image forming apparatus to the sheet processing apparatus. Time, the processing efficiency is reduced. In order to perform the stapling process on the stacked sheets without performing the above-described sheet reversing operation, the stapling section of the stapler may be disposed below the sheet, and the stapled section may be disposed above the sheet. However, when the stapler is simply mounted upside down, the needle holder and the magazine part face downward, so that it becomes difficult to see, and a problem arises in that it becomes difficult to attach the needle holder to the magazine part. In addition, excessive force is applied when pulling the needle holder downward from the magazine, causing the needle holder to hit the stapler periphery and causing damage. Was.

An object of the present invention is to provide a stapler capable of safely and smoothly attaching and detaching a needle holder to and from a magazine section, and a sheet processing apparatus using the same.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to removably hold a needle driving portion for discharging a staple, and a needle holder provided near the needle driving portion and containing the staple. In a stapler having a magazine portion and a needle bent portion provided to face the needle punching portion, the stapler is achieved by including a guide member for guiding a mounting / removing direction of the needle holder in the vicinity of the magazine portion. You.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a sheet processing apparatus. Sheets (sheets) ejected and fed from an image forming apparatus (not shown) are stacked on a tray 3 for stapling by a transport roller 2, and a desired number of sheets When the sheets are stacked on the tray 3, the stapler 4 drives the staples into the stacked sheets to perform a stapling process. The stapler 4 is configured such that the needle punching section 4a is on the lower side and the needle folding section 4b is on the upper side, and the upper surface of the needle folding section 4b is attached to the mounting section 1a in the sheet processing apparatus 1 by a screw (not shown) or the like. Fixed and mounted.

As shown in FIG. 2, the stapler 4 detachably holds a needle driving portion 4a for discharging staples and a needle holder 5 provided near the needle driving portion 4a and containing the staples. And a guide member 6 for guiding a needle holder 5 in a mounting / removing direction. The guide member 6 includes a needle holder 5 and a guide member 6 for guiding a mounting direction of the needle holder 5. Is held near one end of an opening 4d (see FIG. 3) provided in the magazine portion 4c for holding the same.

The needle holder 5 is pushed into the magazine 4c along the guide member 6 as shown in FIG. 3, and the projection 5a formed on the needle holder 5
The needle holder 5 is mounted on the magazine portion 4c by getting over the latch 8 pulled by (see FIG. 2). On the free end (lower end) side of the guide member 6, there is provided a palm rest portion 9 which can strike the palm of an operator when pulling out the needle holder 5 from the magazine portion 4c. The guide member 6 and the palm rest 9 are configured as shown in FIG. 4, and a rail 6 a for guiding the needle holder 5 is arranged inside the guide member 6. Note that the rail portion 6a may have a tapered shape with a wide entrance in consideration of the mountability of the needle holder 5.

When pulling out the needle holder 5, as shown in FIG. 5, a hand 10 is attached to the palm rest 9 provided on the guide member 6 so as to put the palm of the worker.
By vertically pulling out both side surfaces of the needle holder 5 with the contact portion between the palm rest 9 and the palm as a fulcrum, the needle holder 5 can be smoothly pulled out of the magazine 4c.

[0010]

As described above, according to the present invention, it is possible to provide a stapler capable of safely and smoothly attaching and detaching a needle holder to and from a magazine, and a sheet processing apparatus using the same.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a sheet processing apparatus on which a stapler of the present invention is mounted.

FIG. 2 is an overall side view showing the stapler of the present invention.

FIG. 3 is a partial cross-sectional side view showing the stapler of the present invention.

FIG. 4 is a perspective view showing one embodiment of a guide member.

FIG. 5 is a side view showing a state when the needle holder is pulled out.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sheet processing apparatus, 4 ... Stapler, 5 ... Needle holder,
6: Guide member, 9: Palm rest.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Aizawa 1060 Takeda, Hitachinaka-shi, Ibaraki Prefecture Within Hitachi Koki Engineering Co., Ltd.

Claims (3)

[Claims] A stapling section for stapling a staple, a magazine provided near the stapling section and detachably holding a needle holder accommodating the staple, and the stapling section. A stapler having a needle bent portion provided opposite to the stylus, further comprising a guide member near the magazine portion for guiding a direction of attaching and detaching the needle holder. 2. The apparatus according to claim 1, further comprising a palm contact portion on a free end side of said guide member, the palm contact portion being capable of abutting an operator's palm when pulling out said needle holder from said magazine portion. Stapler. 3. A sheet processing apparatus for performing staple processing on sheets stacked and discharged on a tray, wherein the staple driving section is located below the sheet, and the staple bending section is located above the sheet. A sheet processing apparatus comprising the stapler according to claim 1 mounted thereon.