JPH0747396Y2 - Jam release mechanism for recording paper transport - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a jamming mechanism for a recording paper conveying unit, and particularly to a recording paper conveying unit in an apparatus such as a facsimile machine, a copying machine, or a printer having a paper jamping mechanism at a plurality of locations. Regarding the jam release mechanism.

[Conventional technology]

Conventionally, this type of paper jam clearing mechanism at a plurality of locations has a structure in which the paper guide is opened and closed independently at each part to remove the paper from each part.

[Problems to be solved by the device]

The above-described conventional paper jam clearance mechanism has the following problems.

(1) Several actions were required to open and close the paper guide at each part when clearing the paper jam.

(2) Since there are members necessary for opening and closing in each part, the number of constituent members increases.

(3) There is a risk of forgetting to close the paper guide.

[Means for Solving the Problems]

The recording paper transport jam canceling mechanism of the present invention guides the fixed first paper guide and the paper provided along the first paper guide, and is always in a fixed position by the urging force of the spring. Second and third paper guides to be maintained, first and second wire pulleys fixedly arranged, one end having a certain length and fixed to the second paper guide, and A wire rope having the other end fixed to the third paper guide via the first and second wire pulleys, and the second and third paper guides via the wire rope. Are interlocked with each other and separated from the first paper guide.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is a front view showing a jam release according to the present embodiment.

In this embodiment, a fixed paper guide 3 and an opening / closing paper guide 1 and a rocking paper which are provided along the fixed paper guide 3 to guide the recording paper and are always maintained in a fixed position by the urging force of a spring. The guide 2 and the two wire pulleys 7a and 7b arranged on the fixed plate, one end of which has a fixed length and is fixed to the opening / closing paper guide 1 and the wire pulley 7
The other end has a wire rope 6 fixed to the swinging paper guide 2 via a and 7b. In addition to these, a feed roller 4 and a tension roller 5, which convey the recording paper,
In addition, an opening / closing paper guide fulcrum 8 serving as a fulcrum for opening / closing the opening / closing paper guide 1 and a swinging paper guide fulcrum 9 serving as a fulcrum for swinging the swinging paper guide 2 are provided.

Next, the operation of this embodiment having such a configuration will be described.

FIG. 1 shows the home position during paper conveyance. The end of the wire rope 6 is fixed to the opening / closing paper guide 1 via the wire pulley 7a, and the other end is fixed to the wire pulley.
It is fixed to the swinging paper guide 2 via 7b. Here, the wire rope 6 is arranged as shown in FIG. 1, and the opening / closing paper guide 1 and the swinging paper guide 2 are in the state of paper conveyance with respect to the fixed paper guide 3.

When a paper jam occurs, open the opening / closing paper guide 1 and the wire rope 6 fixed to the opening / closing paper guide 1
Is drawn in the direction of arrow A. This pulled force changes the direction of the force in the arrow B direction via the wire pulleys 7a and 7b, and pulls down the rocking paper guide 2 (Fig. 2). Therefore, the gap between the open / close paper guide 1 and the swing paper guide 2 with respect to the fixed paper guide 3 is increased, and at the same time, the engagement between the feed roller 4 and the tension roller 5 is released, and the recording paper can be taken out. Wire rope 6
The opening / closing paper guide 1 and the oscillating paper guide 2 are interlocked with each other through the so-called, and the paper jam can be easily treated.

[Effect of device]

As described above, according to the present invention, by providing two paper guides that are interlocked with each other via a wire rope, a plurality of paper guides can be opened and closed in synchronization with one operation to easily remove paper jams. Since there is only one artificial movement, it is effective in reducing forgetting to close the paper guide.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is a front view showing a jam release according to the present embodiment. 1 …… Opening / closing paper guide, 2 …… Rotating paper guide, 3 …… Fixed paper guide, 4 …… Feed roller, 5 …… Tension roller, 6 …… Wire rope,
7a, 7b ... Wire pulley (fixed), 8 ... Opening / closing paper guide fulcrum, 9 ... Oscillating paper guide fulcrum.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-102348 (JP, A) Actually open 60-167032 (JP, U) Actually open 61-168041 (JP, U) Actually open 59- 149848 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A fixed first paper guide and a second paper guide which is provided along the first paper guide and guides the paper, and which is always maintained in a fixed position by a biasing force of a spring.
And a third paper guide and a fixedly arranged first
And a second wire pulley, having a fixed length, one end fixed to the second paper guide, and the other end via the first and second wire pulleys, the third paper guide. It is equipped with a wire rope fixed to
A recording paper transport section jam release mechanism, characterized in that the second and third paper guides are interlocked with each other via the wire rope to separate from the first paper guide.