JPS58144034A - Paper conveyer device - Google Patents

Abstract

PURPOSE:To easily remove paper when a jam or the like of the paper is caused, by both forcibly contacting upper and bottom paper conveying rollers to each other through an urging means and movably supporting at least one of the both rolers in the separative direction. CONSTITUTION:Both ends of a shaft 2a of a bottom conveying roller 2 are rotatably supported to a frame 1 of a copying machine or the like, and two rollers 2b are separately provided in the axial direction of the shaft 2a. While long holes 1a, 1b, one of which is longer and the other is shorter, are vertically drilled to said frame 1 in a position above a bearing 3 supporting said shaft 2a, and bearings 5 supporting both ends of a shaft 4a of an upper conveying roller 4 are slidably fitted to these long holes 1a, 1b. Then said roller 4 is urged in the direction of said roller 2 by an urging means while a release knob 6 is provided to one end of the shaft 4a to enable the separation of the both rollers 4, 2. In this way, when a diagonal feed or a jam of paper is caused, the paper can be easily removed.

Description

[Detailed Description of the Invention] The present invention relates to a paper conveyance device mainly used in a copying machine, and relates to a paper conveyance device that is designed so that the first jamb can be easily removed in the event of jamming. As shown in FIG. 1, the paper conveyance device used is one that is equipped with an upper conveyance roller C that presses against the paper sheet during lower conveyance, which is rotated by a drive source (not shown). is publicly known. However, the conveyance device with this structure has the disadvantage that if the paper is fed diagonally or paper jams occur, it must be removed. This invention was made for the purpose of eliminating such disadvantages. A paper conveyance device is provided in which at least one of an upper conveyance roller and a lower conveyance roller that are pressed against each other can be moved in a direction of separation, so that jammed paper can be easily removed. be.

Hereinafter, a general example of the present invention will be described in detail with reference to the drawings shown in FIG. 2 and below. The lower conveyance roller is rotatably supported at both ends, and two rollers 2b are provided spaced apart in the axial direction of the upper shaft 2eL. Further, the frame IK is located above the bearing 3 that supports the shaft 2a of the lower conveyance reeler 2, and long holes is and 1h are vertically bored in one side and slightly short in the other. Ig,l! A bearing 5 for supporting the shaft 4 at both ends of the upper carpet feeder 4 is slidably fitted therein. The shaft 46 supported by these bearings 5 has the lower conveyance roller 2
A viewing roller 4b is provided at a position circumferentially contacting each roller 2, and a release knob 6 is provided at one end of the shaft 4a.

On the other hand, 7 is a biasing means for urging the upper conveyance roller 4 in the direction of the lower conveyance roller 2 and pressing the rollers 24 and 44 against each other. It is formed by a coil spring that detours around the bearing 5 of No. 4.

As described in detail above, the present invention is configured such that at least one of the upper and lower conveyance rollers 4 and 2 which are in pressure contact with each other is movable in the direction of separation, and the movable side conveyance roller 4 is moved from the fixed side conveyance roller 4. 2 side, the paper can be smoothly transported between the upper and lower transport rollers 4 and 2, and even if the paper is skewed or the paper is distorted, the movable transport roller 4 can be moved. By holding the release knob 6 and separating it from the fixed conveyance roller 2, the paper can be easily removed.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional paper conveying device, FIG. 2 is a front view showing an embodiment of the present invention, and FIG. 3 is a side view. 2 is the lower conveyance roller, 4 is the upper conveyance roller 17Fi energized ◎ Applicant Fuji Xerox Co., Ltd. Agent Patent attorney Masaaki Yonehara Patent attorney Tadashi Hamamoto

Claims (1)

[Claims] The upper and lower conveyors p-24 are pressed against each other by the urging means 7,
2. A paper conveyance device in which at least one of the paper conveyance devices supported so as to be movable in the separating direction.