JPS60296Y2 - Printer stamp device - Google Patents

Description

[Detailed explanation of the invention] This invention supports the ink roller removably on the machine frame toward the front of the paper travel path, and supports the ink roller rotatably so that it contacts the outer periphery of the type drum from above, and always moves downward. In a label printer that prints dates, prices, etc. on paper in cooperation with a type drum and hammer, it has a holder that receives the elastic force of The present invention relates to a stamp device for a printer that stamps characters such as product names on paper.

Conventionally, a holder holding an ink roller that contacts the outer periphery of the type drum from above and applies ink to the outer type surface of the type drum has an elastic body provided above and pressed downward to press the ink roller against the outer type surface of the type drum. However, for this reason, when the holding body is removed when replacing the ink roller, etc., it must be removed in the forward direction in the paper feeding direction.

However, in this type of printing device equipped with a stamp mechanism, such as a label printer, the stamp is placed close to the type drum in the paper path on the side where it is ejected from the type drum and the hammer, and the stamp is moved up and down. Because the mechanism is close to the front of the holder, the holder 4
The complicated and difficult work of inserting your fingers from above the machine frame and moving the holder forward in the paper feed direction in a narrow space to attach and detach is required, which reduces work efficiency and leaves the operator's fingers dirty. This resulted in drawbacks such as causing discomfort to people.

The purpose of this invention is to eliminate the drawbacks of the conventional ones.

An embodiment of this invention will be explained with reference to the drawings. The typeface [1-11] has a plurality of typefaces lined up on the outer periphery, and a horizontal axis intersecting the feeding direction of the strip-shaped paper P on which the label paper is pasted. It is supported on a machine frame (not shown) so as to be rotatable around the center.

A plurality of hammers 2 are arranged along the axial direction of the toe l, 1 so as to be able to approach and separate from the outer peripheral surface of the drum 1, while sandwiching the paper P and facing the lower blade of the type drum l, 1.

The holder 4 that protrudes the handle 3 outward has a hollow shape opening downward, and the ink roller 5 is rotated around a horizontal axis so that the lower end of the holder 4 protrudes inward from the lower opening 4a. The holder 4 removably supports the lower end of the ink roller 5 in the forward direction in the feeding direction of the paper P against the crosspiece frame C so that the lower end of the ink roller 5 is in contact with the outer periphery of the drum 1, and the ink roller 5 is pressed against the outer periphery of the drum 1. An elastic force is applied from above so that the

A marking stand 6 disposed on the lower blade of the feeding path of the paper P discharged from between the type drum 1 and the hammer 2 has a horizontal end face, and a pair of bins 7 protrude vertically upward on both sides of the feeding path.
．． 8 are provided separately and wound around the bottle 7°δ (imitations 9 and 10 are each wound separately.

The inverted 0-shaped support 12, which has a protrusion 11 projecting in the -L direction at the center of its upper end surface, has both side end legs 12a and 12b fitted into the bin 7.8 so as to be movable up and down, and is unwound. 9. Hold 10 between the upper end surface of the stamp stand 6 and 1. , a stamp body 13 whose lower end face is a printing plate is removably fitted and supported in the intermediate space lie so that the printing plate protrudes downward;
Due to the elastic force of 10, the printing plate is always separated above the stamp stand 6.

- The actuating arms 14 and 15, whose ends are bent downward into an L-shape, each have an axis parallel to the rotational axis of the drum 1 with respect to the machine frame, with the intermediate portion located above the holder 4 and outwardly from both ends in the axial direction. Rotatably supported at the center (1. Both ends of the support arm 18 parallel to the rotational axis are fixed to the lower ends of the bent portions i6, 17 of both operating arms 14, 15.

An operating arm 1 that is approximately U-shaped and allows a holding body 4 holding an ink roller 5 between its vertical portions to be inserted and removed in the paper feeding direction.
9 is fixed by penetrating the center part of the horizontal part 19a to the protrusion 11 of the support body 12, bending the upper ends of both vertical parts outward into an L shape, and attaching it to the other end (tip) of the actuating arm 14.15. Rotatably fitted and supported.

The armature 21, which is pulled forward in the paper feeding direction by the electrical action of the electromagnet 20 and moves, forms a groove 22 along the vertical direction at its tip (~, and the back of the connecting arm 23 arranged in the groove 22 along the paper feeding direction). Fitted so that the ends can slide in the vertical direction 17
, parallel to the support arm 18, the tip of the armature 21 and the connecting arm 2
The rear end of the connecting arm 23 is rotatably supported by a locking piece 24 that passes through the rear end of the connecting arm 23 and projects outward at both ends.

A long hole 25 is formed along the feeding direction at the forward end of the connecting arm 23, and the center of the support arm 18 is always inserted into the long hole 25.
Loosely fit it so that it touches the rear end of 5.

A pair of coil springs 26 and 27 are arranged between both ends of the locking piece 24 and the support arm 18 with the connecting arm 23 in between.

This device is constructed as described above, and the armature 21 is pulled to the right in FIG.
The support arm 18 moves in the same direction due to the elastic force of 6 and 27,
The operating arms 14 and 15 rotate equally in the counterclockwise direction (Fig. 1), and the operating arm 1 has its upper end connected to the tips of the operating arms 14 and 15.
9 is pushed downward.

The support body 12, which supports the center of the horizontal part 19a of the working arm 19 at the center of the upper end surface, descends against the elastic force of the coiled spring 9, 10, and evenly distributes the plate surface of the lower end of the stamp body 13 on the upper end surface of the stamp stand 6. come into contact with

When the armature 21 is pulled further, the coiled spring 26.27
The elastic force of the supporting body 12 is pushed downward via the operating arms 14, 15 and 19, and the plate surface of the stamp body 13 is pressed against the upper end surface of the stamp stand 6.

When the electromagnet 20 is deenergized, the coiled springs 9, 10 and 26, 2
The support body 12 returns upward due to the elastic force of 7.

The working arm 19 is shaped like 1" and has the front side of the holder 4 open. When attaching or removing the holder 4, hold the handle 3 and move it to the rear in the paper feeding direction through the loop-shaped space of the working arm 19. It can be moved to a predetermined position and removed.

As described above, according to this invention, the front side of the holder 4 that holds the ink roller is open, so a window opening in the front of the machine frame can be formed, and the holder can be easily moved forward in the paper feeding direction. Therefore, the holding body can be easily attached and detached, improving work efficiency, and the operator's fingers and the like are not soiled, thereby eliminating discomfort to the operator.

[Brief explanation of the drawing]

FIG. 1 is a side view of this embodiment, and FIG. 2 is a perspective view. In the figure, 1 is a type drum, 2 is a hammer, 4 is a holder, 6 is a marking stand, 12 is a support, 14 and 15 are operating arms, 1
8 is a support arm, 19 is an operating arm, and 20 is an electromagnet.

Claims (1)

[Scope of Claim for Utility Model Registration] A type drum 1 having type on its outer periphery and rotatable around a horizontal axis perpendicular to the paper feeding direction, and a paper feeding path so that printing can be performed while touching and separating from the outer periphery of the type drum. The hammers 2 are placed opposite to each other below the type drum, and the ink roller is supported on the machine frame in a removable manner in the direction of paper feed so that the ink roller contacts the outer periphery of the type drum from above. A holder 4 that receives an elastic force that presses against it; a flat stamp stand 6 that is disposed opposite to each other below the paper feed path ahead of the type drum and hammer in the paper feed direction; A support member 12 that is vertically movably supported across the feed path and normally receives an upward elastic force so as to separate the lower surface of the stamp body from the upper surface of the stamp stand.
The front end in the paper feed direction is bent downward into an L shape, the middle part is supported rotatably around an axis parallel to the rotation axis of the type drum, and the tip is opposed to the upper part of the support, and the paper of the holder is A pair of actuating arms 14 and 15 are arranged apart from each other in the rotational axis direction so as to open the forward end in the feeding direction, and a horizontal support arm 18 has both ends fixed to the bent lower ends of both actuating arms.
The holder has a substantially U-shape so that the front end in the paper feeding direction is open, and the upper ends of both vertical parts are supported separately at the tips of both actuating arms so as to be rotatable about axes parallel to the rotational axis, and horizontal parts are supported separately. and an electromagnet 20 that is connected to the support arm and acts electromagnetically to rotate both of the actuation arms so that the horizontal portion of the action arm presses the support downward. Printer stamp device with.