JPH0449713Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention enables input by arbitrarily selecting various sheets displaying input items, and by replacing these various sheets, input can be performed easily and quickly. The present invention relates to a multi-item input device capable of converting items, and particularly relates to a multi-item input device that selects sheets by attaching the various sheets to a cartridge and winding them around a rotating drum.

[Conventional technology]

Conventionally, in this type of device, there is one that performs input by inserting into a multi-item input device a sheet cartridge in which a plurality of sheets on which input items are displayed are attached at regular intervals. This type of multi-item input device is disclosed in, for example, Japanese Patent Laid-Open No. 55-95134, and the sheet can be easily changed by replacing the sheet cartridge. That is, after the sheet cartridge is inserted, it is wrapped around a rotating drum. In this state, one sheet is selected, the selected sheet is placed on the item key, and item input is performed.

This will be explained below with reference to the drawings.

Fig. 8 is a schematic perspective view showing the multi-item input device, Fig. 9 is a plan view showing the sheet cartridge, and Fig. 10 is a schematic perspective view showing the multi-item input device.
1 is a side sectional view showing a multi-item input device, and FIG. 11 is a perspective view showing a timing mechanism of a conventional multi-item input device. The configuration of a conventional multi-item input device will be explained using FIGS. 8, 9, 10, and 11.

In FIG. 8, the multi-item input device 1 includes an item key 2 for displaying a plurality of input items, a function key 3 for specifying various functional operations, and one sheet from a sheet cartridge 4 inserted into the device. It has a page key 6 for issuing an instruction to select a sheet 5 and place it on the item key 2, and a cartridge insertion slot 7 for inserting and ejecting a sheet cartridge 4.

In FIG. 9, the sheet cartridge 4 has sheets 5 arranged at equal intervals on a base sheet 8 made of a flexible member.
The end portion of the cartridge is attached and has a cartridge shaft 9. Also seat cartridge 4
A cartridge identification page patch 10 is attached to the cartridge 4 for reading the number of the cartridge 4 when inserted into the multi-item input device 1.
In FIG. 9, six page patches 10 are pasted, each page patch 10a to 10f.
32, 16, 8, 4, 2, 1 page bits are formed in the order of reading up to. Depending on the presence or absence of this page patch 10, the sheet cartridge number is determined.

FIG. 10 shows the sheet cartridge 4 wound around a center drum 11 and two side drums 12 on both sides thereof. There are four guide rollers 13 on the outside of the sheet cartridge cartridge 4.
A guide belt 14, which is stretched around the guide belt 14, is wound around the guide belt 14. Further, in FIG. 10, the multi-item input device 1 further includes an upper cover 27, a lower cover 28, and a sheet separator 26 for separating the selected cartridge sheet 5 from other sheets.

In FIG. 11, the center drum 11 and side drums 12 are attached to a drum shaft 15,
The drum shaft 15 has a hexagonal shaft in a portion closer to the center than the side drum 12, but has a round shaft in the outer portion, and is fitted into a hole 17 of a frame 16 and is rotatably attached. Further, the drum shaft 15 is connected to a pulse motor (not shown). The guide belt 14 is wound around the center drum 11. The center drum 11 has a claw portion 18 . side drum 1
2 is provided with a predetermined number of slits 19, and these slits 19 are arranged to coincide with the position of the page patch 10 when the sheet cartridge 4 is wound up. Further, a side plate 29 is attached to the side drum 12. In some cases, the side drum 12 and the side plate 29 are integrally molded. A cartridge sensor 20, which is a reflective optical sensor, is attached to the frame 16, and this cartridge sensor 20 faces a slit 19 provided in the side drum 12 inside the side drum 12. Further, a timing disk 22 having a predetermined number of slits 21 is attached to the drum shaft 15, and a page sensor 23, which is a transmissive sensor, and a home sensor 24, which is a transmissive sensor, are attached to sandwich the timing disk 22. ing. As shown in FIG. 12, this timing disk 22 has a shape in which the protrusion 25 between the slits is made smaller by one. The timing mechanism is configured as described above.

Next, the action will be explained.

First, the cartridge insertion slot 7 of the multi-item input device 1
Insert the seat cartridge 4 to a certain position. Next, when the page key 2, which instructs the intake of the sheet cartridge 4, is pressed, a pulse motor (not shown) rotates, and the drum shaft 15 is rotated in the direction of the arrow R shown in FIG. Then, the center drum 11 and side drums 12 attached to the drum shaft 15 start rotating. As a result, the claw portion 18 of the center drum 11 is attached to the seat cartridge 4.
The sheet cartridge shaft 9 is hooked onto the sheet cartridge shaft 9, and the sheet cartridge 4 is reliably wound around the center drum 11 and side drums 12. At this time, the seat cartridge 4 is connected to the center drum 11 and the guide belt 1.
The guide belt 14 interlocks with the sheet cartridge 4 to facilitate winding. Further, the side plate 29 attached to the side drum 12 prevents the sheet cartridge 4 from shifting when it is wound up.
As the sheet cartridge 4 is wound up,
A cartridge sensor 20 disposed inside the side drum 12 is connected to a slit 19 of the side drum 12.
The operation of reading the page patch 10 affixed to the sheet cartridge 4 through the sheet cartridge 4 is started. If the page patch 10 is attached, the cartridge sensor 20 outputs a signal, and if it is not attached, it does not output a signal.

Further, when the drum shaft 15 starts rotating, the timing disk 22 attached to the drum shaft 15 starts rotating. Accordingly, a page sensor 23 and a home sensor 2 are attached to sandwich the slit portion 21 of the timing disk 22.
4 senses the slit portion 21 and outputs a signal.
As shown in FIG. 12, the page sensor 23 connects part a of the timing disk 22 to the home sensor 24.
detects part b. Time charts of the page sensor 23, home sensor 24, and cartridge sensor 20 are shown in FIGS. 13A, 13B, and 13C.

Next, the cartridge number reading and page selection mechanism will be explained with reference to FIGS. 12 and 13.

The cartridge sensor 20 detects the page patch 10 pasted on the sheet cartridge 4 through the slit 19 of the side drum 12 and outputs it. In FIG. 13, after the home sensor 24 detects one wide slit, the output of the page sensor 23 is the 6th pulse, and if 32 bits of the page patch 10 are pasted, the cartridge sensor 20 outputs an output. , it will not be output if it is not pasted. Next, the bit of page patch 10 is set at the 8th pulse of the page sensor 23.
If the 16 copies are pasted, the cartridge sensor 20 will output an output, and if not, it will not be output. Thereafter, detection is performed sequentially for 8 bits, 4 bits, 2 bits, and 1 bit. In this way, depending on the presence or absence of the page patch 10, the cartridge sensor 2
The seat cartridge number can be read by determining the presence or absence of the output of 0. In this conventional example, it is possible to read 64 types of cartridge numbers.

Furthermore, in one rotation of the timing disk 22, the page sensor 23 outputs signals equal to the number of slits of a constant width on the timing disk 22, and the home sensor 24 outputs signals of a constant width one less than the number of slits. Then, a signal corresponding to one wide slit is output. The time when the home sensor 24 outputs one wide slit is set as the home,
The pulse outputs of the page sensor 23 from that point on are sequentially numbered as 0, 1, 2, . . . , 20. This number is then made to correspond to the page of each sheet 5 in the sheet cartridge 4. For example, when selecting page 5, if the rotation of the pulse motor (not shown) is stopped at the 5th pulse output of the page sensor 23, the stopping position will be such that the sheet 5 of the 5th page is the first
It is located above the sheet separator 26 in Figure 0. If the pulse motor (not shown) is reversely rotated by a certain angle, the sheet 5 of the fifth page will be placed on the item key 2, and item input will become possible.

[Problem that the invention attempts to solve]

However, the multi-item input device configured as described above requires two optical system sensors, a page sensor and a home sensor, and one timing disk for timing setting. Additionally, a cartridge sensor is required as a means for defining the seat cartridge number. Therefore, the timing mechanism for selecting the sheet is complicated, and reliability is lowered due to the possibility of malfunctions, and the device itself becomes expensive.

Therefore, the present invention provides a highly reliable and inexpensive multi-item input device by eliminating the above-mentioned problems of reduced reliability caused by a complicated timing mechanism and high cost of the device. The purpose is to

[Means for solving problems]

In order to achieve the above object, the present invention provides timing slits of different widths on the same circumference as the cartridge number slit of the side drum, attaches a reflective patch to the predetermined timing slit, and uses an optical timing sensor. is installed inside the side drum so as to face the cartridge number slit and the timing slit, and not to follow the rotation of the side drum, and to read the output from the timing sensor and rotate the side drum. This feature is characterized in that the control is performed based on the output of a timer or counter.

[Effect]

According to the above configuration, the present invention determines the home position by reading the reflective patch with an optical timing sensor through the timing slit provided on the side drum, and from the home position, the cartridge number slit is read by the timer. The sheet cartridge number can be defined by reading the presence or absence of a page patch affixed to the sheet cartridge with the timing sensor through the sheet cartridge.

When selecting a page, a desired page is placed on the sheet separator by rotating the side drum for a predetermined period of time based on a timer output starting from the home position. Here, by rotating the side drum in the opposite direction by a certain angle, a desired page is placed on the item key, and item input is performed.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. Note that elements common to each drawing are given the same reference numerals.

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a plan view showing an embodiment of the present invention,
Fig. 3 is a side sectional view showing the embodiment according to the present invention, Fig. 4 is a side view showing the winding state of the cartridge sheet, and Fig. 5 is a time diagram for explaining the operation of the embodiment according to the present invention. FIG. 6 is a block diagram for explaining the operation of the embodiment according to the present invention, and FIG. 7 is a flow chart for explaining the operation of the embodiment according to the present invention.

The configuration of the timing mechanism of the multi-item input device according to the present invention will be explained with reference to FIGS. 1 and 2.

The side drum 12 is attached to a drum shaft 15, and a predetermined number of cartridge number slits 19 and one timing slit 31 having different widths from the slits 19 are provided at regular intervals. A reflective patch 32 is attached to the timing slit 31. A timing sensor bracket 33 is fixed to the frame 16, and a timing sensor 34 is attached to this timing sensor bracket 33. As shown in FIG. 2, this timing sensor 34 is
Inside the side drum 12, the side drum 1
It is positioned so as to face the cartridge number slit 19 and the timing slit 31 provided in the cartridge number 2. The other configurations are the same as those of the conventional example.

Next, the operation of the timing mechanism of the multi-item input device according to the present invention will be explained using FIGS. 4, 5, 6, 7, and 9.

The operation of inserting the sheet cartridge 4 from the cartridge insertion slot 7 of the multi-item input device 1 and winding up the sheet cartridge 4 is the same as that of the conventional example described above, and therefore the explanation will be omitted.

The sheet cartridge 4 inserted into the multi-item input device is wound around the center drum 11 and side drums 12 by pressing the page key 6. A time chart of the above operation is shown in FIG. A home output and a cartridge number output are output from the timing sensor 34 at time intervals of t ₁ , t ₂ , t ₃ , t _{4 .} . . , respectively. The home output width and the cartridge number output width are set to t ₁ and t ₂ (t ₂ <t ₃ ), respectively, by changing the width of the slit. The output from the timing sensor 34 is taken in and read from the CPU through the port as shown in FIG. Read timing is determined by timer output operated by CPU instructions.

Next, the cartridge number reading and page selection mechanism will be explained according to the flowchart of FIG.

After inserting the sheet cartridge 4 into the multi-item input device 1, the output from the timing sensor 34 is read while rotating a pulse motor (not shown) (step 101). Note that t ₁ ,
t ₂ , t ₂ + t ₃ + t ₄ , t ₂ + 2 (t ₃ + t ₄ ), ..., t ₂ + 5 (t ₃
+t ₄ ) output width is stored. If there is a sensor output, it is checked whether the pulse width of the output is _t1 (step 102). If the width of the output is not _t1 , the operation moves to reading the output from the timing sensor 34 again. If the pulse width of that output is t ₁ , that sensor output is determined as the home (step 103),
Start the timer (step 104). After step 104, the cartridge sensor output is read according to the timer output. So step 103
The timer is started from the point in time when the sensor output with a pulse width of _t1 is read. Next, when the timer has elapsed t= _t2 , the sensor output is read (step 105). The contents read here are the contents of 32 page bits for the cartridge number (step 106). If the page patch 10 of 32 page bits is attached, there is a sensor output.
If it is not attached, there will be no sensor output. Next, the sensor output is read when the timer has elapsed for t=t ₂ +t ₃ +t ₄ (step 107). The contents read here are the contents of 16 page bits for the cartridge number (step 108). If the page patch 10 of 16 page bits is attached, there is a sensor output, and if it is not attached, there is no sensor output. In the same way, the timer sets t=t ₂ + 2 (t ₃ +
t ₄ ), the timer outputs 8 page bits, the timer outputs 4 page bits when t = t ₂ + 3 (t ₃ + t ₄ ) has elapsed, and the timer outputs 4 page bits when t = t ₂ + 4 (t ₃ + t ₄ ) has elapsed. When the timer reaches t = t ₂ + 5 (t ₃ + t ₄ ), read 1 page bit (steps 109, 111, 113, 115).
The content of each page bit is 8, 4, 2, and 1 (steps 110, 112, 114, and 116). By reading each bit for the cartridge number as described above, the sheet cartridge number can be defined.

Next, a case will be described in which an arbitrary page of the sheet cartridge 4 wound up in the multi-item input device is selected.

Since the timer is set starting from the home reading point in step 104 mentioned above, for example, n
When selecting a page, confirm that the timer has elapsed (step ₁₁₇ ), and stop the rotation of the pulse motor (not shown) (step 118).
The n-th page of cartridge sheet 5 is selected. At that time, the nth page cartridge sheet 5
is placed on the sheet separator 26 shown in FIG. When a pulse motor (not shown) is rotated in the reverse direction by a constant rotation, the cartridge sheet 5 is placed above the item key 2, and item input becomes possible. As described above, according to this embodiment, it is possible to read the cartridge number and select the page simply by using a single timing sensor. Therefore, there is an effect that the structure of the timing mechanism can be simplified.

It goes without saying that the same effect as described above can also be obtained by using a counter based on the timing of driving a pulse motor (not shown) to determine the retrieval timing after determining the home.

[Effect of idea]

As explained in detail above, according to the present invention, the page sensor and home sensor, which are optical sensors for page selection in a multi-item input device, are not required, and the timing disk is also not required, so the structure is significantly simplified. . Therefore, since page selection and sheet cartridge number reading can be performed without using a complicated mechanism, a highly reliable and low-cost multi-item input device can be provided.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a plan view showing an embodiment of the present invention,
Fig. 3 is a side sectional view showing the embodiment according to the present invention, Fig. 4 is a side view showing the winding state of the cartridge sheet, and Fig. 5 is a time diagram for explaining the operation of the embodiment according to the present invention. 6 is a block diagram for explaining the operation of the embodiment according to the present invention, FIG. 7 is a flowchart for explaining the operation of the embodiment according to the present invention, and FIG. 8 is a multi-item input device. 9 is a plan view showing a sheet cartridge; FIG. 10 is a side sectional view showing a multi-item input device; FIG. 11 is a perspective view showing a timing mechanism of a conventional multi-item input device; FIG. 12 is a detailed view showing the timing disk, and FIG. 13 is a time chart for explaining the operation of the conventional timing mechanism. 12...Side drum, 19...Cartridge
NO slit, 31...timing slit, 32...reflection patch, 34...timing sensor.

Claims (1)

[Claims for Utility Model Registration] (1) A cartridge in which a plurality of sheets divided by item are attached to a flexible member at regular intervals and identification patches are attached is wound around a rotating drum, and the cartridge is wrapped around a rotating drum. defining the contents of the cartridge by reading the identification patch with a sensor through a slit provided in the cartridge;
In the multi-item input device, a desired sheet is selected by rotating the rotary drum by a predetermined angle, and the selected sheet is placed on an item key by rotating the rotary drum in the opposite direction. A timing slit having a width different from that of the slit is provided on the same circumference as the slit, and a reflective patch is pasted on the timing slit, and the time when the reflective patch is detected by the sensor is set as a reference point. . A timing mechanism for a multi-item input device, comprising: a control section for controlling reading of the identification patch and a predetermined amount of rotation of the rotary drum. (2) The multi-item input according to claim (1) of the utility model registration claim, characterized in that the control unit includes a timer for reading the identification patch and controlling a predetermined amount of rotation of the rotary drum. Equipment timing mechanism. (3) The multi-item input as set forth in claim (1) of the utility model registration claim, characterized in that the control unit includes a counter for reading the identification patch and controlling a predetermined amount of rotation of the rotary drum. Equipment timing mechanism.