JPS625741Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a time card stage feeding device suitable for use in a time recorder, and more specifically, to a time card insertion depth that is adjusted once a day. The present invention relates to an improvement of a stage feeding device that changes and feeds printing stages (printing columns) one stage at a time.

[Conventional technology]

To determine the printing stage of the time card, a feeding device (specifically a solenoid) that operates once a day is used.
A raising rack equipped with a card receiving lever is fed one step per day using a step feeding device consisting of a feed pawl that is pulled and rotated by the feed pawl and a ratchet gear that is fed daily by the feed pawl. It is determined by.

On the other hand, the date, hour, and minute type wheels built into the time recorder are driven by a feed claw that is pulled and rotated by a feed device (specifically, a solenoid) that operates once per minute. In addition to advancing the minute wheel, a carry mechanism interposed between each type wheel sequentially advances the hour and date wheels.

Therefore, conventional time recorders have been equipped with a feeding device for feeding the time card and for feeding and rotating the type wheel.

[Problem that the invention attempts to solve]

As described above, incorporating two sets of feed devices inside a time recorder requires two sets of control units to control the operation of these two feed devices, two sets of transmission mechanisms to transmit the operation of the feed devices to the feed claws, etc., which results in a complex structure, an increased number of parts, and higher costs.

Therefore, it has been considered to simplify the overall configuration by using a single feeding device to carry out both the above-mentioned stage feeding of the time card and feeding and rotation of the minute printing wheel.

However, the feeding device for the minute type wheel operates once a minute to feed the type, whereas the feeding device for the column feeding operates once a day to feed the letters. It is structurally impossible for a single feeding device to perform these operations.

Therefore, the technical problem of the present invention is to use a single feeding device to feed the type wheel and to advance the time card stages, so that the printing stage of the time card can be accurately printed one stage per day. The purpose is to advance the steps.

[Means for Solving the Problems] The following measures were taken in the present invention to solve the above technical problems.

(1) A main gear is attached to the side of the date wheel, which is fed and rotated once a day, and two sets of feed teeth are formed on the circumference of this main gear, equally divided for the 15th and 16th days. An intermittent gear is provided in which toothless portions and two toothless portions are alternately and continuously formed.

(2) A rising gear that meshes with a rising rack that determines the printing stage of the time card to perform stage feeding is provided in the slave gear that is rotated in conjunction with the interlocking gear formed on the circumference and meshing with the above-mentioned intermittent gear. .

(3) A part of the interlocking gear is provided with a toothless part that disengages both the master and slave gears between the toothless part of the intermittent gear and the toothless part of the intermittent gear.

However, here, the date type wheel is a minute type wheel that is driven by a feeding device that operates once per minute, and is minutely advanced by this feeding device, and a date type wheel that moves in conjunction with this minute type wheel. This refers to a type wheel that is sequentially carried up by a time type wheel that is fed and rotated once a day, and has date type letters from the 1st to the 31st formed on its circumference.

[Effect]

The above means works as follows.

The reason for the above factor (1) is that a main gear with an intermittent gear for advancing the time card is installed on the side of the date wheel, which is rotated once a day to advance the date. It is possible to unify the drive source and date type wheel drive source into one.

According to the factor (2) above, when the date wheel is rotated once a day due to the meshing of the intermittent gear of the main gear and the interlocking gear of the slave gear, the slave gear is rotated as well. Therefore, the ascending gear advances the ascending rack for determining the printing stage once a day.

According to the factor (3) above, when the raising rack is moved 15 times, the meshing of both the master and slave gears is released and the raising rack is returned to the starting position, and then,
After 16 steps have been carried out, the main and slave gears are disengaged again and the lifting rack is returned to its starting position, making it possible to carry out one month's worth of steps (31 days).

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

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the time card stage feeding device according to the present invention will be described in detail below with reference to the accompanying drawings.

Figure 1 is a partially sectional front view showing the structure of the main parts of the present invention. In the figure, 1 is a type shaft installed between frames (not shown), and 2 and 3 are attached to this type shaft 1. The minute type wheel and the time type wheel are shown. Separate type wheel 2
is advanced by one degree per minute by a minute feed mechanism (not shown), and the hour type wheel 3 is advanced by one degree per minute, and the minute type wheel 2 is advanced by 60 degrees.
When the clock is advanced by 60 minutes, the time is advanced by a time advance mechanism, which is also not shown. In addition, 4 is a date wheel similarly attached to the type shaft 1, and on one side of this date wheel 4, a date feed ratchet gear 5, which has a total of 31 ratchet teeth equally divided, is integrated with a rivet swage 6 or the like. are mounted centrally and concentrically. 7 is a mounting shaft installed parallel to the type shaft 1, and 8
9 indicates a date lever attached to the mounting shaft 7, and 9 indicates a date claw attached to the tip of the date lever 8.
The date pawl 9 is engaged with the date ratchet gear 5 as shown in FIG.
When the time is advanced 24 times (one day) and the date lever 8 is moved by an interlocking device (not shown), the date ratchet gear 5 is advanced by one tooth and the date wheel 4 is advanced. It is completed. Therefore,
The three type wheels 2, 3, and 4 are sequentially fed in conjunction with each other to set the type corresponding to the current day, hour, and minute at the printing position.

Next, what is generally indicated by the reference numeral 10 is fitted onto the circumferential surface of the fixing boss portion 5a of the date feed ratchet gear 5 so as to be in contact with one side of the date type wheel 4, and also concentrically. The main gear 10 has a substantially ring shape, and an intermittent gear 11 is formed on one side circumferential surface of the main gear 10, as shown in FIGS. 1 to 3. As shown in FIGS. 2 and 3, the intermittent gear 11 has a feed dog group 11a for 15 days divided into 15 equal parts or multiples thereof, and a feed dog group 11a divided into 16 equal parts or multiples thereof.
16-day feed dog group 11b, and toothless portions 11c and 11d corresponding to four teeth in the drawing are formed between these two feed dog groups 11a and 11b, respectively. Furthermore, stopper teeth 12a and 12b are provided on the other peripheral surface of the main gear 10 in positions corresponding to the toothless portions 11c and 11d, respectively. (See FIGS. 1 to 4) Furthermore, in the figure, what is generally indicated by the reference numeral 13 is a follower gear rotatably attached to the mounting shaft 7.
A total of 16 ascending gears 13a, each of which is divided into 17 equal parts, one of which is a toothless portion 13a', are formed on one side circumferential surface of the subordinate gear 13, and these ascending gears 13a... A rising rack 14 for determining the printing stage shown in FIG. 2 is engaged with the rising rack 14, and a card receiving lever (not shown) for receiving the lower end of the time card is attached to the rising rack 14. Incidentally, the above-mentioned toothless portion 13a' is a toothless portion 13a' which is unrelated to the engagement with the rising rack 14.
each tooth of the rising rack 14 and the rising gear 1.
This is provided as a mark to make it easier to see the teeth facing each other on the rising rack 14 and the teeth facing the rising gear 13a. There is no need to deliberately omit it. Moreover, the feed dog groups 11a and 11b of the main gear 10 are provided on the central circumferential surface of the slave gear 13.
An interlocking gear 13b is formed which is divided into 17 equal parts or a multiple thereof, and meshes with the interlocking gear 13b.
In the drawing, four of them are missing and there is a toothless part 13.
It constitutes b′. Further, on the other peripheral surface portion of the slave gear 13, the interlocking gear 13b and the feed tooth group 11a or 11b of the main gear 10 are disengaged at toothless portions 11c and 11d of the main gear 10, When the slave gear 13 rotates in the opposite direction (in the clockwise direction in FIGS. 2 and 3) due to the weight of the lifting rack 14, the stopper tooth 12a or 1 of the main gear 10
A locking protrusion 13c is provided in a protruding manner to lock onto the gear 2b to stop the slave gear 13 at the starting position. In this way, the rising rack 14 descends to the starting position while reversing the gear 13. However, for some reason, the rising rack 14 does not return to the starting position and remains stopped midway. If the date feed is started again from this state, the rising rack 14 will start rising from the middle, but when the rising rack 14 rises to the highest stage, the feed dog group 11a of the main gear 10
Or, 11b is disengaged at the toothless portion 13b' of the slave gear 13, and even if the main gear 10 further rotates, the slave gear 1
3 does not rotate and continues to maintain the same state.
Then, as the rotation of the main gear 10 further progresses, the toothless portion 11c or 11d changes to the toothless portion 1 of the slave gear 13.
When reaching the part 3b', the mesh is released and the slave gear 13
Since the lifting rack 14 becomes free for the first time, the raising rack 14 can correctly lower to the starting position and start correct stage feeding again. Therefore, according to the above structure, it is possible to prevent each gear from being locked due to incomplete lowering of the lifting rack 14, and also to automatically reset the lifting rack 14 to the correct position.

In FIG. 1, reference numeral 15 denotes a minute feed ratchet gear concentrically attached to one side of the minute type wheel 2, and 16 denotes a time feed cam connected to the side of the ratchet gear 15. 3 is fixed to the type shaft 1, which is moved by a time feed lever (not shown) which is pushed by this cam 16, and the type shaft 1 is rotated once per hour.
It has a mechanism that allows the time to be forwarded several times.

Next, the operation of the above embodiment will be explained.

When the date pawl 9, which is operated once a day, advances the date ratchet gear 5 by one tooth, the date wheel 4 and the main gear 10 advance by one day. Then,
The subordinate gear 13, which engages the interlocking gear 13b with the feed dog group 11a or 11b of the main gear 10, is also advanced by one day, so that the ascending gear 13a is not easily ascended.
4 by one step as shown in Fig. 2, and move the time card printing step by one step to change the printing step.

When the above step feeding is performed for 15 or 16 days, on the next feeding day, that is, at 0:00 the next day, the toothless portion 11c or 11d of the intermittent gear 11
The two gears 10 and 13 are disengaged, and the slave gear 13
is reversed as shown in FIG. 4 due to the weight of the lifting rack 14, causing the lifting rack 14 to quickly return downward. The follower gear 13 has a locking protrusion 13c as shown in the imaginary line in FIG.
The rotation is reversed until it engages with the stopper teeth 12a or 12b of the main gear 10, and the position where the reverse rotation is stopped becomes the starting position and a new stage feed is started again.

〔effect〕

As described above, the present invention advances the printing position of the time card one step per day, and after advancing the step for 15 or 16 days, the rising rack can be quickly moved back to the starting position to prepare for new printing. However, in the present invention, the main gear, which is the drive source for step feeding, is attached to the date wheel, and the subordinate gear is fed and rotated in accordance with the rotation of the date wheel. Because it is configured to perform this, the structure is much simpler than conventional equipment, and the number of parts is reduced, simplifying manufacturing and assembly, making it possible to significantly reduce costs, and making it much easier to assemble. The advance is also 1 a day according to the date wheel's daily advance.
It has functional advantages such as accurate step-by-step feeding, and together with the fact that it is simple to configure and easy to implement, it is suitable for use in various monthly payment type time recorders. be.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view showing the main parts of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is a sectional view taken along line B-B in Fig. 1, and Fig. 4 is a sectional view taken along line A-A in Fig. 1. The figure is also a sectional view taken along the line C--C in FIG. 1. 1... Type shaft, 2... Minute type wheel, 3... Hour type wheel, 4... Date type wheel, 5... Date feed ratchet gear, 9... Date feed pawl, 10... Main gear, 11
...Intermittent gear, 11a, 11b...Feed dog group, 1
1c, 11d... Toothless portion, 12a, 12b...
Stopper teeth, 13...following gear, 13a...rising gear, 13b...interlocking gear, 13b'...toothless portion, 13c...locking protrusion, 14...rising rack.

Claims (1)

[Scope of utility model registration request] A main gear is attached to the side of the date wheel, which is rotated once a day to advance the date, and on the circumference of this main gear are two sets of feed teeth formed equally for the 15th and 16th days. 2
An intermittent gear is provided in which toothless portions are formed alternately and continuously, and an interlocking gear formed on the circumferential surface is meshed with the intermittent gear to provide a slave gear that is rotated in conjunction with the above-mentioned intermittent gear.
A rising gear is provided that meshes with the rising rack that determines the printing stage of the time card to advance the stage, and a part of the interlocking gear has a toothless part of the intermittent gear that engages both master and slave gears. A time card stage feeding device characterized by having a toothless part for removing the time card.