JPH09198536A - Printing color switching mechanism for time recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the switching mechanism of the color of printing in a time recorder capable of easily switching the color of printing. SOLUTION: A switching member 7 provided movably in a horizontal direction along with a printing head 4 and movably in a vertical direction is connected to the lower part of the printing head 4 and the switching member 7 is normally energized up or down and is movable downwards so as to move the printing head 41 only for one track from a reference position along with a time card 2 inserted from a card insertion port 1 and moved to the reference position. In the meantime, near the switching member 7, an engagement part to be engaged with the switching member 7 moved downwards along with the time card 2 and an engagement release part for releasing engagement when the switching member 7 is moved further exceeding a portion for printing a prescribed item on the time card 2 along with the printing head 4 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color switching mechanism for switching printing of two colors on a time card of a time recorder.

[0002]

2. Description of the Related Art Generally, a time recorder is provided with a mechanism for printing the time and attendance time on a time card in different colors when going to and from the set time and when attending outside the set time. Has been. As described above, the mechanism for switching the printing color is performed by providing the ink ribbon with the two-color printing tracks in the upper and lower stages and moving the ribbon cassette up and down by one track with respect to the print head when printing. It was

[0003]

However, the above-mentioned switching mechanism is one in which the frame on which the ribbon cassette is mounted is vertically moved or rotated by one track by the solenoid, and thus the mechanism using the solenoid increases the cost. There was a problem.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a printing color switching mechanism in a time clock that can easily switch printing colors without using an electrical mechanism.

[0005]

In order to solve the above-mentioned problems, a printing color switching mechanism in a time recorder according to the present invention has a printing head sandwiching an ink ribbon having upper and lower two-color printing tracks. In a time recorder that prints predetermined items while moving horizontally with respect to the time card, a switching member that is horizontally movable together with the print head and is vertically movable is connected below the print head. , The switching member is normally urged to one of the upper and lower sides, and the print head is moved downward by one track from the reference position together with the time card inserted from the card insertion slot and moved to the reference position. The time when the switching member moved downwards with the time card, while the switching member An engagement portion that engages the member and an engagement release portion that releases the engagement when the switching member moves further together with the print head on the time card beyond the print amount of a predetermined item. And

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view showing a main part of a time recorder. Reference numeral 1 is a card insertion slot provided in the time recorder body, 2 is a time card, 3 is an ink ribbon, and 4 is a print head. Is. Figure 2 for time card 2
In addition to the employee's name, affiliation, etc., there is a printing column for the date, attendance time, leaving time, etc. Further, when the time card 2 is inserted from the card insertion slot 1 and pushed to the reference position at the lowermost end, a card feeding mechanism (not shown) moves the corresponding date column upward to a position corresponding to the print head 4. Has been done.

The ink ribbon 3 is composed of two color printing tracks a and b of red ink and black ink provided in the upper and lower stages. The ink ribbon 3 is mounted in the ribbon cassette 5 and is configured to move in conjunction with the print head 4. ing.

The print head 4 is provided so as to move horizontally with respect to the time card 2 by a predetermined amount described in the time card 2 by sandwiching the ink ribbon 3 by a feeding mechanism (not shown). Is an ink ribbon 3
Are arranged to face each other.

Next, the central portion of the print head 4 is rotatably supported by a rotary shaft 6 arranged in the moving direction, and a switching member 7 is supported below the rear portion of the print head 4. It is rotatably connected by a shaft 8.

The switching member 7 is a J-shaped plate member, and a recess 9 into which the rear portion of the print head 4 is inserted is formed in the upper portion thereof, and the time card 2 is provided on the front surface below the middle thereof.
A receiving portion 10 for receiving the lower end surface of the lower portion is formed to project, and a protruding portion 12 having a triangular cross section is formed at the front portion of the tip of the lower folding portion 11.
Are formed. The switching member 7 is provided so as to move horizontally with the print head 4 as well as vertically. As the switching member 7 moves up and down, the print head 4 also rotates around the rotating shaft 6, so that its front surface also moves up and down. The amount of movement of the print head 4 in the vertical direction is one track of the ink ribbon 3. And
The switching member 7 is normally biased upward by a biasing means (not shown), and therefore the front surface of the print head 4 is biased downward.

After the lower end 13 of the time card 2 is engaged with the receiving portion 10 of the switching member 7 to reach the reference position, the switching member 7 is also interlocked with it by further pushing the time card 2.

Further, an engaging plate 14 is arranged horizontally in the vicinity of the switching member 7 in the main body of the time clock, and an engaging groove 15 (at a position corresponding to the lower side of the switching member 7 is formed in the engaging plate 14). Engagement part) and engagement release groove 16
(Engagement releasing portion) is continuously formed. Engagement groove 15
Is a groove that engages with the folded-back portion 11 when the switching member 7 moves downward, and the engagement release groove 16 is
It is a groove for releasing the engagement with the folded-back portion 11 when the switching member 7 moves together with the print head 4 beyond a predetermined amount described in the time card 2.

In the above structure, in the normal case, the card is inserted from the card insertion slot 1 as shown in FIG. 1 and is located at the lowermost reference position (the lower end 13 of the time card 2 is the receiving portion 10 of the switching member 7).
When the card is pushed to the position corresponding to the print head 4 by the card feeding mechanism, the print head 4 moves from left to right as shown in FIG. , A predetermined item is printed on the time card 2 with the black ink on the lower track b of the ink ribbon 3.

At the time of early leaving or overtime, when the time card 2 is further pushed after inserting it from the card insertion slot 1 and pushing it to the reference position at the lowermost end,
Since the 3rd position is lower than the reference position, the switching member 7 is pushed down by the time card 2. And FIG.
As shown in FIG.
4 is engaged with the engaging groove 15. Therefore, the print head 4 rotates about the rotation shaft 6, and its front surface 4a moves upward by one track of the ink ribbon 3 and faces the red ink on the upper track a. Although this state is maintained even if the force on the time card 2 is released, the time card 2 returns to the reference position, and the card feeding mechanism moves the corresponding date column upward to the position corresponding to the print head 4, Furthermore, when the print head 4 moves in the same manner as in FIG. 3,
A predetermined item is printed on the time card 2 with the red ink on the upper track a of the ink ribbon 3. When the switching member 7 moves further together with the print head 4 beyond the amount specified in the time card 2, the folded portion 11 of the switching member 7 reaches the disengagement groove 16 after printing as shown in FIG. Is automatically disengaged, and the urging force moves upward by one track, the print head 4 moves to a position facing the black ink of the ink ribbon 3, and further moves to the left initial position again for the next printing. Is prepared.

As described above, since the red ribbon 3 and the black ribbon 3 of the ribbon cassette 5 can be selected only by the feeding amount of the time card 2, a solenoid is not required in addition to the card feeding mechanism. Therefore, the cost can be kept low.

Further, since the printing by the red ribbon 3 is automatically released at the moving end of the print head 4 after the printing is completed, the mechanism can be simplified.

The engaging portion may have any shape as long as it engages with the switching member 7, and need not be a groove.

Since the print head 4 is rotated by the rotary shaft 6, the vertical movement amount of the switching member 7 and the front surface of the print head 4 are adjusted by adjusting the position of the rotary shaft 6 back and forth. The vertical movement amount of can be adjusted. However, the present invention is not limited to this configuration. For example, while fixing the print head 4 to the switching member 7, the red ink of the ink ribbon 3 is set as the lower track and the black ink is set as the upper track, and the switching member 7 is moved downward. It may be configured to select the red ink when the ink is discharged.

Further, when the time card is inserted into the card insertion slot, when an automatic pull-in mechanism is provided which automatically has a roller for pulling the time card to the reference position, when going to or leaving the office at a time other than the set time. May be configured so that the roller further pulls the time card downward by one track of the ink ribbon from the reference position and then returns to the reference position. In this case, the color can be automatically selected without the solenoid.

[Brief description of drawings]

FIG. 1 is an explanatory view of a main part of a print switching mechanism in a time clock according to the invention.

FIG. 2 is a front view of a part of the time card.

FIG. 3 is an explanatory view of a printing mode in a state where the printing switching mechanism is activated.

FIG. 4 is an explanatory diagram of a mode of canceling switching of the switching member.

[Explanation of symbols]

 1 Card insertion slot 2 Time card 3 Ink ribbon 4 Print head 7 Switching member 15 Engagement groove (engagement part) 16 Engagement release groove (engagement release part)

Claims (1)

[Claims] 1. A time recorder for printing a predetermined matter while horizontally moving a print head with respect to a time card by sandwiching an ink ribbon provided with two-color print tracks at upper and lower stages, and the time recorder is horizontal with the print head. A switching member that is movable in the vertical direction and movable in the vertical direction is connected to the lower side of the print head, and the switching member is normally urged to either the upper or lower side, and is inserted from the card insertion slot to set the reference position. The print head can be moved downward by one track from the reference position together with the time card moved up to, while the switching member moved downward together with the time card is provided in the vicinity of the switching member. The engaging part that engages and the switching member, together with the print head, exceed the printable amount on the time card. Color switching mechanism of the print in the time recorder, characterized by comprising a disengagement portion for releasing the engagement when further moved.