JPS602107Y2 - Holding mechanism for paper side guide members - Google Patents

Description

[Detailed description of the invention] This invention is used in a paper feeding device such as a printing machine that carries multiple sheets of paper. This invention relates to a holding mechanism for a guide member.

In order to place the paper in a predetermined position, a paper feeding device such as a printing machine is provided with side guide members that abut on both sides of the paper to regulate the position of the paper.

Conventionally, in order to hold this side guide member, a sliding rod was fixed horizontally above the printing paper, and the side guide member was movably inserted into this sliding rod, and both ends of a U-shaped frame were held. A configuration in which a side guide member is rotatably supported on the frame and fixed to the frame is often used.

However, in the former configuration, when the guide member is not set at an appropriate position and the paper feed tray is raised, the guide member and the paper collide, causing damage to the machine.

In addition, in the latter configuration, although the drawbacks of the former are eliminated, the frame cannot be removed, and the guide member becomes a nuisance when the guide member is not needed, such as when using a paper feed table with side guide members. It was something.

In view of the above-mentioned drawbacks, the present invention provides a holding mechanism for the paper side guide members that provides relief to the guide members to prevent damage to the machine and can be removed when not needed.

An embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 shows the vicinity of the paper feed section of a printing press. A locking member 2 is provided on a machine frame 1 of the printing press so as to be movable up and down, and the upper surface of this locking member 2 is set horizontally. A paper feed tray 3 is engaged, and a plurality of sheets of printing paper 4 are placed on the upper surface of the paper feed tray 3.

The machine frame 1 has a mounting member 5 located above the locking member 2.
is fixed to the mounting member 5, and a U-shaped frame 6 is attached to the mounting member 5.
are removably engaged.

A pair of side guide members (side guides) 7 are movably inserted through the frame 6.

Furthermore, a vacuum suction device 8 is located near the mounting member 5.
, paper feed rollers 9 are provided, respectively.

Next, FIG. 2 shows the frame 6 and side guides 7. A side guide 7 is slidably inserted into the center of the frame 6 which is bent into a U-shape. An adjustment knob 10 is provided to fix the position with respect to the frame 6.

Rotating pins 11 are projected on the outsides of both bent ends of the frame 6, and locking pins 12 are projected on the outsides of both ends closer to the middle side than the rotating pins 11. It's a shame.

FIG. 3 shows the mounting member 5, which is L-shaped and made of a thin plate, and is fixed to the machine frame 1 so that the - side is horizontal.

A semicircular bearing groove 13 having a slightly larger curvature than the rotation pin 11 is formed at the turning point of the mounting member 5.
A fixing spring 14 is fixedly positioned toward the distal end of 3 and serves as a slightly U-shaped elastic retainer that opens upward.

The distance between the bearing groove 13 and the fixed spring 14 is the same as the distance between the rotation pin 11 and the locking pin 12.

Next, the operation of this embodiment will be explained.

The printing paper 4 placed on the paper feed table 3 is guided by side guides 7 on both its left and right sides, pulled out one by one by a suction device 8, and transferred to an impression cylinder by a paper feed roller 9.

If the size of printing paper 4 changes, turn the adjustment knob 10.
Loosen by turning , move the side guide 7 in the length direction of the frame 6, and adjust the side guide 7 using the adjustment knob 10.
to be fixed.

If the side guide 7 is not required, rotate the frame 6 upwards around the rotation pin 11 and remove the locking pin 12 and fixing spring 1.
4 (the state shown in FIG. 3, 6-a), and pull the frame 6 to the right in FIG. Remove from mounting member 5.

Attaching the frame 6 to the mounting member 5 is carried out in the reverse order to the above.

Since the present invention is configured as described above, even if the printing paper comes into contact with the side guide, there is a relief in the side guide, and damage to the machine due to collision can be prevented.

Furthermore, when using a paper feed table with side guides, the side guides can be removed and used, making installation and removal extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a side view of a paper feeding portion showing an embodiment of the present invention, FIG. 2 is a perspective view of a frame of the same, and FIG. 3 is a side view of a mounting member of the same. 5... Mounting member, 6... Frame, 7
......Side guide member, 13...Bearing groove,
14...Fixed spring as an elastic retainer.

Claims (1)

[Scope of utility model registration request] In a paper feeder capable of loading multiple sheets of printing paper, a pair of arm-shaped mounting members fixed to the frame of the paper feeder have an opening at the top and a fixed side of the mounting member at the bottom. A bearing groove is cut in the horizontal direction, and a substantially U-shaped permeability holder with an upward opening is installed on the side opposite to the fixing side of the mounting member with respect to the bearing groove, and a pass-through holder is provided between the pair of side frames. A guide frame is erected to form a substantially U-shaped frame, and a pivot pin extending approximately parallel to the guide frame is provided at the tip of each side frame of the frame, and a pivot pin is provided behind the pivot pin. Locking pins extending substantially parallel to each other are provided, and a pair of side guide members for guiding both sides of the printing paper are attached to the guide frame so as to be slidable along the longitudinal direction of the guide frame. but,
The paper side is characterized in that the rotation pin is fitted into the bearing groove and the locking pin is held by an elastic holder so that it is supported substantially horizontally by a mounting member. Holding mechanism for side guide member.