JPH0639986Y2 - Jig for wheel wheel replacement - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is installed on a printing cylinder or a printing platen of a printing machine, and prints a predetermined character or pattern at the same time or by a dedicated machine. The present invention relates to a jig for easily performing a work of replacing a wheel wheel of a numbering device used for printing a serial number or a permutation signal on a sheet.

[Conventional technology]

The numbering device rotatably supports a plurality of wheel wheels having a wheel ratchet on the wheel shaft of the main body frame, rotates the wheel wheels forward by the feed claws of the swing arm, and one end side is biased by a pole spring. Also, the wheel wheel is unidirectionally prevented by preventing reverse rotation of the wheel wheel by the same number of ratchet poles as the wheel wheel provided with engaging claws whose other end is engaged with the wheel ratchet via the pole shaft. Only rotate,
A serial number or a permutation symbol is printed.

By the way, when changing the font or size such as the number to be printed, it is necessary to replace all of the plurality of wheel wheels.
This work releases the ratchet pole from the wheel ratchet, removes the letter wheel from the wheel shaft,
Although it is to be replaced with a predetermined wheel wheel, when the wheel wheel is removed from the wheel shaft, the ratchet pole (engagement claw) falls over inside the main body frame due to the bias of the pole spring. Therefore, when mounting the character wheel, the ratchet pole is mounted on the wheel shaft while manually supporting the end of the ratchet pole on the side having the engaging claws.

[Problems to be solved by the device]

The present invention has been made in view of the above problems,
An object of the present invention is to provide a jig for easily performing a work of replacing a wheel wheel of a numbering device by attaching the numbering device to a predetermined attachment (mounting jig).

[Means for Solving the Problems]

According to a first aspect of the present invention, a plurality of character wheels having a wheel ratchet are rotatably supported on a wheel shaft of a main body frame, and the character wheels of the swing arm are normally rotated by a feed claw of a swing arm, and one end side is a pole spring. Of a numbering device for preventing reverse rotation of the wheel wheel by the same number of ratchet poles as the number of wheel wheels provided with engaging claws that are biased at the other end side by the pole shaft and engaged with the wheel ratchet. A wheel / wheel replacement jig, comprising a pin or a plate-like member for pressing the ratchet pole one end side in a direction against the pole spring to release the engaging claw on the other end side of the ratchet pole from the wheel ratchet. Consisting of a pressing member and a support to which the member is attached,
It is a jig that can be attached to and detached from a numbering device attachment.

The invention according to claim 2 is based on the invention according to claim 1, and is characterized in that the protruding length of a pin or a plate-like body provided in the support tool can be appropriately adjusted.

[Action]

The jig wheel wheel replacement jig of the numbering device according to the present invention (hereinafter, simply referred to as a jig) is used to remove a plurality of ring wheels supported by the numbering device body frame from the numbering device body frame. If it is attached to the attachment for mounting the device, the pin or plate-shaped pressing member presses one end side of the ratchet pole in the direction against the pole spring, and the engaging claw on the other end side of the ratchet pole is released from the wheel ratchet.

Therefore, the engaging claws of the ratchet pole do not fall inside the main body frame, and the work of replacing the character wheel can be performed more easily than before.

〔Example〕

An embodiment according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of the jig A, which is provided with a pin 15 projecting a predetermined length from at least one side surface of a plate-like support tool 14 and standing upright.

FIG. 2 is a perspective view of the jig B, which is provided with a liner-shaped plate-like body 17 which is erected on one side surface of the support 16 so as to project up to a predetermined length.

FIG. 3 is an explanatory diagram when the character wheel is replaced using the jig and the attachment. (A) in the figure
It is an attachment 12 having tapered guide grooves 13 on both sides, and (b) is an attachment 12 for mounting tapered slide guides 11 provided on both sides of the bottom frame of the numbering machine, and (c) is In another embodiment, a cutout portion 19 is provided on the bottom of the slide of the attachment 12.

The numbering device is attached and fixed to the printing machine side via the attachment 12. The jig is removably fixed to a notch 19 provided on the side of the attachment 12 or inside the outer edge of the guide groove 13.

FIG. 4 is a side view of the numbering device main body to which the attachment is attached and the jig attached to the side of the attachment.

To describe the numbering device in detail, the wheel shaft 3 of the main body frame 1 rotatably supports a plurality of wheel wheels 2 having a wheel ratchet 2a, and further, the feed pawl 8 is always provided on the ratchet gear 2a of the wheel wheel 2. Swing arm 7 provided with pawl shaft 9 and spring 10 for urging in the engaging direction
Support. The feed pawl 8 driven by the repetitive movement of the swing arm 7 engages with the wheel ratchet 2a of the character wheel 2 to rotate the character wheel 2 forward. Then, the same number of ratchet poles 5 as the number of wheel wheels are attached with the pole shaft 4 attached to the side surface of the main body frame 1 as a fulcrum. One end of the ratchet pole 5 has a spring hole formed in the bottom portion 1a of the main body frame 1.
It is urged outward by a pole spring 6 loaded in 6a. On the other hand, the other end side engages with the outer periphery of the wheel ratchet 2a in a pressed state to prevent the wheel wheel from rotating in the reverse direction.

Hereinafter, the numbering device, the jig and the attachment will be described in detail.

An attachment 12 for fixing and mounting the main body of the numbering machine on the printing cylinder or surface plate of the printing machine, and a taper provided parallel to the axial direction of the wheel shaft 3 provided on both sides of the bottom portion 1a of the body frame 1 of the numbering machine. -Shaped slide guide 11
Are fitted along the guide grooves 13 provided on both sides.

And the attachment 12 with such a number attached
The jig A or the jig B is pressed to the side of the jig, and the jig is attached and fixed to the attachment 12 by the screw hole 14a formed on the jig side and the set screw 14b, and the tip of the pin 15 of the jig is fixed. The ratchet pole 5 is pressed from the outside of the main body frame by the so that the engaging claws 5a of the ratchet pole 5 are supported in a state of being disengaged from the wheel ratchet 2a.

FIG. 5 is an explanatory view showing a jig according to claim 2,
The protruding length of the pin or the plate-shaped body can be adjusted appropriately. In the figure, (a) shows a plurality of pins 22 on the hole 21a of the support 21.
Is inserted and fixed with screws 21b from the upper part of the support 21.
Further, it is fixed to the attachment with the screw 20. (B)
Is to screw a pin 24, which is a screw, into the threaded portion 23a of the support tool 23 and rotate the pin 24 to adjust the protruding length. Furthermore,
Secure to the attachment with screws 27. (C) Rotates the pin 24 to adjust the protruding length and supports 25
The fitting portion 26 is provided on the side surface of the fitting, and the fitting portion 26 is fitted and attached to an attachment (not shown) such as a vise for use.

When the above-mentioned jig is attached to the numbering attachment, the pin or plate-shaped pressing member presses one end of the ratchet pole in the direction against the pole spring, and the engaging claw on the other end of the ratchet pole. Was released from the wheel ratchet. In that state, the engaging pawl of the ratchet pole did not fall inside the main body frame, and the character wheel could be easily replaced.

[Effect of device]

A jig according to the present invention comprises a pin or a plate-shaped pressing member for pressing one end of a ratchet pole in a direction against a pole spring to release an engaging claw on the other end of the ratchet pole from a wheel ratchet. It consists of a support to which the above-mentioned members are attached, and can be attached to and detached from the numbering device attachment, so when removing a plurality of ring wheels supported by the numbering device main frame from the numbering device frame, If attached to the attachment for attachment,
A pin or a plate-shaped pressing member presses one end of the ratchet pole in a direction against the pole spring, so that the engaging pawl on the other end of the ratchet pole can be released from the wheel ratchet.

Therefore, the engaging claws of the ratchet pole do not fall inside the main body frame, and the work of replacing the character wheel can be performed more easily than before.

[Brief description of drawings]

1 and 2 are perspective views of the jig, and FIG. 3 is an explanatory view for explaining a combination of the jig and the attachment.
FIG. 5 is a side view of an attachment to which a numbering device is attached and a jig attached to the attachment, and FIG. 5 is an illustration of an embodiment of the jig. 1 …… Main body frame 2 …… Shape wheel 3 …… Wheel shaft 4 …… Pole shaft 5 …… Ratchet pole 6 …… Pole spring 7 …… Swing arm 8 …… Feed pawl 9 …… Pawl shaft 10 …… Spring 11 …… Slide guide 12 …… Attachment 13 …… Guide groove 14,16 …… Supporting tool 15 …… Pin 17 …… Plate 19 …… Notch 20 …… Screw 21,23,25 …… Supporting tool 22, 24 …… Push pin 26 …… Mating part 27 …… Mounting hole

Claims (2)

[Scope of utility model registration request] 1. A plurality of character wheels having a wheel ratchet are rotatably supported on a wheel shaft of a main body frame, and the character wheels of a swing arm are normally rotated by a feed claw of a swing arm, and one end side is biased by a pole spring. And a wheel wheel replacement of a numbering device for preventing reverse rotation of the wheel wheel by the same number of ratchet poles as the wheel wheel provided with an engaging claw whose other end is engaged with the wheel ratchet via a pole shaft. A jig for pressing the ratchet pole one end side in a direction against the pole spring, and a pin or a plate-shaped pressing member for releasing the engagement claw on the other end side of the ratchet pole from the wheel ratchet, A jig which comprises a support to which the above-mentioned members are attached and which can be attached to and detached from a numbering device attachment. Jig for replacing the wheel of the unit. 2. The jig for replacing a wheel wheel of a numbering device according to claim 1, wherein a protruding length of a pin or a plate-like member provided in the support is adjustable as appropriate.