JP3270285B2 - Printer up / down actuator at time stamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the technical field of time stamps for printing time and numbers on work slips, parking cards, and the like, and is particularly suitable for use in time stamps. The present invention relates to a vertical operation device of a simple printer.

[0002]

2. Description of the Related Art In a conventional general time stamp which uses a character ring as a printing means, the upper case body is pressed down by hand to press the character ring on a printing paper surface, or, for example, Japanese Utility Model Publication No. 61-21737. As disclosed in the gazette, an engraving printing method of printing a time, a number, or the like has been used by pressing a print ring against a printing paper surface by a suction action of a printing solenoid.

On the other hand, in the case of a recent time stamp using a printer such as a dot printer as a printing means, printing cannot be performed by using an embossing printing method such as the above-mentioned conventional time stamp. For example, an up-down operation device as disclosed in Japanese Utility Model Laid-Open No. 50253/1992, that is, an up-down operation in which the entire printer frame on which a printer is mounted is vertically moved along two left and right guide shafts during printing. Printing was performed using an apparatus.

[0004]

However, in the case of a time stamp, only the insertion side (front end side) of the printing paper needs to be particularly wide at the time of printing. Since it is necessary to move up and down horizontally, the cam for up and down operation becomes larger mechanically, and the power (motor) for rotating the cam becomes larger. As a result, the entire time stamp is more than necessary However, there is a problem that the size is increased and the cost is increased, and the improvement has been desired.

Accordingly, a technical problem of the present invention is to smoothly insert a print sheet and perform printing by a printer by opening only a time stamp insertion port with a relatively small power.

[0006]

Means taken by the present invention to solve the above-mentioned technical problems are as follows.

When a sheet is inserted into a slot provided between the base table and the printer frame, a printer attached to the printer frame prints a time stamp.

(1) The root end of the printer frame is rotatably supported on the base table so that the insertion port can be opened and closed up and down. , by rotating the cam disc provided in the vicinity of the shaft support, also provided in the vicinity of Jikushibu this cam disc
The printer frame can be turned up and down by switching between a rising position where the above-mentioned insertion opening is opened between the cam follower and the lowering position where the insertion opening is closed and printing by the above-mentioned printer is possible. Provide means. (Claim 1)

(2) The printing paper inserted when the printer frame is lowered onto the bottom surface of the printer frame is pressed against the base surface, and a rubber or paper material is provided between the base and the base surface for maintaining a printer printing interval. Must be provided with a plastic paper holder. (Claim 2)

(3) A spring is provided between the printer frame and the base table so as to always pull the printer frame downward on the base table side. (Claim 3)

( 4 ) A detecting means for detecting the home position of the cam disk is provided on the inner surface of a cam disk that rotates the printer frame up and down or a gear that rotates the cam disk. (Claim 4)

[0012]

The means described in the above items (1) to ( 4 ) operate as follows.

According to the means described in the above (1), instead of vertically moving the entire printer frame on which the printer is mounted, the root end side of the printer frame is rotatably supported on the base table side. By moving the leading end of the printer frame up and down between the cam disk and the cam follower, the insertion slot can be opened and closed to allow the insertion of printing paper or the printer can be lowered to the printing position. Compared with the case where the entire printer frame is moved up and down while keeping the entire horizontal state, the cam disc and the motor for rotating the cam disc can be downsized.

Further, according to the means described in the above (1),
With a cam disk near the base and printer frame
Since a cam follower is provided, the printer can be printed on a small cam disk.
Open and close the front end of the frame, that is, the insertion port side
The cam disk and its motor
And the cost can be reduced.
Open to easily insert printing paper and take out after printing
Make it possible .

According to the means described in the above (2), when the printer frame descends to the base table side due to the rotation of the cam disk, the paper press provided on the bottom surface of the printer frame allows the printing paper inserted into the insertion slot to be inserted into the base. The printer presses the printing paper on the printing paper accurately and smoothly so that the printer presses the printing paper on the base and maintains the space required for printing by the printer between the paper press and the printing paper. Make it possible.

According to the means described in (3) above, when the printer frame descends to the base table side due to the rotation of the cam disk, the spring pulling force acts on the printer frame. The lowering, that is, the lowering of the printer with respect to the inserted printing paper is forcibly performed, thereby making it possible to perform printing reliably.

According to the means described in the above ( 4 ), the rotation of the cam disk is detected by the detection means to detect the home position, thereby pushing the printer frame upward to a predetermined position, specifically, to insert the insertion port. Since the stop can always be reliably performed at the wide open position, it is possible to wait for printing while the insertion port is wide open.

As described above, the above-mentioned technical problems can be solved by the above-described means, and the problems of the conventional technology can be solved.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a printer according to an embodiment of the present invention.

FIG. 1 is a perspective view showing the appearance of a time stamp provided with a vertical actuator for a printer according to the present invention. In the figure, reference numeral 1 generally designates an upper case body 1A.
And a lower case body 1B. A time stamp body 1T is provided for a printing paper (not shown) opening opened between upper and lower case bodies 1A and 1B, and 2 is an upper case body 1A.
And 3 are touch keys for printing and data registration, 5 is a guide plate for guiding one side of the printing paper inserted into the insertion slot 1T, 6 is A knob for determining the printing position of the printing paper inserted into the insertion slot 1T,
7 is a viewing window, 8 is a key switch for opening and closing the upper case body 1A of the time stamp and switching the operation mode, and 10T.
Indicates a platform surface of the lower case body 1B.

FIGS. 2 and 3 are side views showing the internal structure of the time stamp with the above-mentioned upper case body 1A and lower case body 1B removed, and FIG. 2 shows a print standby state in which the insertion slot 1T is opened. FIG. 3 shows a state at the time of printing with the insertion slot 1T closed.

In these drawings, reference numeral 10B denotes a base stand, 10A denotes a main body frame fixedly mounted on the base stand 10B, and 10C denotes the display 2 (clock section) mounted at the tip of the main body frame 10A. ) For mounting frame,
Reference numeral 10D denotes a printer frame which is attached to the inside of the main body frame 10A so as to be vertically rotatable.
The bracket 10Aa protruding right and left of the root end of the printer frame 10D and the bracket 10Da protruding right and left of the root end of the printer frame 10D (see FIG. 5) are also connected to the base table 10B.
The shaft is supported by a rotating shaft 11 erected between shaft bearing pieces 10Ba protruding left and right at the root end.

In FIG. 3, reference numeral 16 denotes a printer, such as a dot printer, which is mounted inside the above-described printer frame 10D on the front end side.
a is attached downward, that is, in the direction of the table surface 10T of the base table 10B, and has a mechanism for printing a time or a number on a print sheet inserted into the insertion port 1T.

Further, in the figure, GB is a gear box mounted on a bottom plate on the root end side of the printer frame 10D close to the above-mentioned rotating shaft 11, and 13 is mounted on a rotating shaft 13a provided in the gear box GB. The cam disk 14 is a cam follower attached to the base table 10B so as to be in contact with the cam disk 13, and 14T is a mounting box thereof.
When the large diameter portion of the cam disk 13 is in contact with the cam follower 14 as shown in FIG. 2, the leading end of the printer frame 10D is raised to open the insertion port 1T widely. When the small diameter portion of the cam disk 13 is in contact with the cam follower 14 as shown in FIG.
The tip side of OD is configured to descend to the platform surface 10T side of the base platform 10B.

Reference numeral 15 denotes the printer frame 10D.
The paper presser 15 is a paper press made of rubber or soft plastic attached to the bottom surface of the front end of the printer frame 10D when the front end of the printer frame 10D descends as shown in FIG. The printing paper inserted into the mouth 1T is pressed against the table surface 10T from above, and a function of maintaining a printing interval for the printer 16 between itself and the table surface 10T is provided.

Further, 12 is the printer frame 1 described above.
The spring 12 stretches between the base frame 10D and the base 10B. The spring 12 exerts a traction function of constantly pulling the printer frame 10D downward, thereby pressing the cam disk 13 against the upper surface of the cam follower 14 and pressing the printer frame 10D. The function of rotating the 10D up and down accurately according to the rotation of the cam disk 13 as shown in FIGS.

In the illustrated embodiment, the cam disk 13 is mounted on the printer frame 10D and the cam follower 14 is mounted on the base 10B. Since the cam disk 13 and the cam follower 14 can be mounted at any position, the upper and lower positions are arbitrary.

Next, the internal structure of the time stamp is shown in FIG.
This will be described in more detail with reference to the enlarged side view shown in FIG. 5 and the plan view shown in FIG.

In each of the above figures, 16H is the printer 1
6 is mounted on the carriage 16G.
H is a guide shaft, 16R is a rack provided on the carriage 16H, 16P is a pinion meshed with the rack 16R, 1R.
6M is a printer moving motor for rotating the pinion 16P, 16E is a reduction gear box, 16X is a guide plate, and when the printer moving motor 16M rotates the pinion 16P and sends the rack 16R, the printer 16 guides the guide shaft 16G. And the printer 16 performs a printing operation during this horizontal movement to perform printing on the inserted printing paper.

Also, 20M is the gear box GB described above.
20Ma, 21 and 22 are motors for vertically moving the printer frame 10D attached to the motor 2D.
A drive pinion and a reduction gear provided in a gear box GB for transmitting 0M rotation to the cam disk 13 are shown.

Further, in the figure, 6a and 6R denote an arm to which the above-mentioned knob 6 is attached and a rack rod for guiding the movement of the knob 6, and 13S and 13T denote the gear box GB and the reduction gear 22, respectively. When the home position sensor 13S detects the shield plate 13T, the home position sensor and the home position shield plate are mounted. When the home position sensor 13S detects the shield plate 13T, the rotation of the vertical operation motor 20M is turned to the position shown in FIG. The insertion side 1T is elevated to stop at a print standby position where the insertion port 1T is widely opened.

Since the up-down operation device of the printer in the time stamp according to the present invention has the above-described configuration,
When the printing paper is inserted into the insertion slot 1T opened as shown in FIG. 1 or FIG.
Since M rotates to rotate the cam disk 13, the printer frame 10 D descends to the base 10 B side as shown in FIGS. 3 and 4 by the pulling force of the spring 12 and its own weight, and the printing paper 15 into which the paper presser 15 is inserted is inserted. On the base 10T,
At the same time, the printing interval for the printer 16 is maintained so that printing is possible.

Next, the printer 16 is laterally moved along the guide shaft 16G by the rotation of the printer moving motor 16M. During this lateral movement, the printer 16 performs a printing operation and prints the time and number on the printing paper.

After the printing is completed, the up / down operation motor 20
M rotates the cam disc 13 and moves the front end of the printer frame 10D between the cam follower 14 and the spring 1
When the home position sensor 13S detects the shielding plate 13T, the rotation of the motor 20M is stopped, and the insertion port 1T is returned to the original opening state shown in FIGS. 1 and 2. Then, it is possible to remove the printed printing paper and wait for the next printing (insertion of the printing paper).

Since the cam disk 13 and the cam follower 14, which move the printer frame 10D up and down, are provided near the rotating shaft 11 which rotatably supports the printer frame 10D up and down, it is relatively small. Cam disk 13
Accordingly, the leading end side of the printer frame 10D can be largely moved up and down to open and close the insertion port 1T largely.

[0036]

As described above, according to the up-down actuator for the printer in the time stamp according to the present invention, the printer can be lowered to the printing position using a relatively small cam disk and power (motor). Therefore, the overall shape is smaller compared to the conventional printer-type time stamp,
In addition to being able to demonstrate the economics of being able to manufacture at low cost, the insertion slot is greatly opened at the time of printing standby and at the end of printing, so that printing paper can be easily inserted and pulled out, and furthermore, the paper presser at the time of printing Presses the printing paper on the table surface and maintains a printing interval between the printing head of the printer and the printing paper, so that it is possible to exhibit an advantage that printing by the printer can proceed without any trouble.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a time stamp provided with a vertical actuator of a printer according to the present invention.

FIG. 2 is a side view for explaining an internal state of a time stamp at the time of printing standby.

FIG. 3 is a side view illustrating an internal state of a time stamp at the time of printing.

FIG. 4 is a side view illustrating the internal structure of a time stamp.

FIG. 5 is a plan view illustrating the internal structure of the time stamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Time stamp body 1A Upper case body 1B Lower case body 1T Insertion port 10A Main body frame 10Aa Bracket 10B Base stand 10Ba Bearing piece 10T Table surface 10D Printer frame 11 Rotating shaft 12 Spring 13 Cam disk 13S Home position sensor 13T Shielding plate 14 Cam follower 15 Paper presser 16 Printer

Claims (4)

(57) [Claims] When a sheet is inserted into an insertion slot provided between a base table and a printer frame, the printer attached to the printer frame performs printing on the time stamp. While rotatably supporting the root end side of the printer frame so that the insertion port can be opened and closed up and down,
In any of the printer frame or base table, on
By rotating the cam disc provided near the serial shaft support, a raised position above the insertion opening is open the printer frame with the cam follower provided in the vicinity of the same Jikushibu this cam disc, outlet A vertical operation device for a time stamp, wherein a rotation means is provided which can be turned up and down by switching to a lowered position where printing can be performed by the printer by closing the printer. 2. A rubber or paper presser for pressing a printing sheet inserted on the bottom surface of the printer frame when the printer frame is lowered onto the base table surface and maintaining a printer printing space between the printer sheet and the base table surface. 2. The apparatus according to claim 1, further comprising a paper presser made of plastic. 3. Between the printer frame and the base table,
2. The up-and-down actuator for a time stamp according to claim 1, wherein a spring for constantly pulling the printer frame toward the lower base is provided. 4. A cam disc for rotating the printer frame up and down, or a detecting means for detecting a home position of the cam disc is provided on an inner surface of a gear for rotating the cam disc. 1. The vertical actuator of the printer at the time stamp according to 1.