JPH0520977Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a recording paper storage device that automatically winds up recording paper output by a printer, particularly an electronic seismic recording device.

(Prior Art and its Problems) Generally, recording paper output by a printer as a peripheral device of a computer has perforations in its width direction, and can be folded at the perforations. Therefore, such recorded papers are not scattered all over the room. However, although such perforated paper is sufficient for recording program lists, etc. in the way it is currently used, it is not suitable for recording real-time phenomena such as seismic waveforms. The recording becomes unclear or discontinuous at the perforations, making it unsuitable and unusable.

Therefore, roll paper without perforations is used to record the phenomena described above, but in this case it is necessary to clean up the clutter caused by the recording paper output from this type of printer. There are drawbacks. In particular, printers that do not record all ground vibrations, but start up and eject recording paper only when the vibrations exceed a certain level, cannot be expected to keep their surroundings tidy.

(Means for Solving the Problems) In view of the above-mentioned problems, the present invention provides a system in which, no matter what time the printer outputs the recording paper, when the printer starts outputting the recording paper, it automatically starts up and outputs the recording paper. A drive unit for winding up a reel that protrudes horizontally from the casing wall and is capable of winding recording paper, a paper clip that lands on the winding shaft of the reel, a ⊃-shaped bent part at the tip, and a base. a swingable lever that is bent and pivoted to the casing wall and extends parallel to the casing wall below the reel; a cam provided at the base of the lever; and a cam that contacts the cam. This recording paper storage device is characterized by comprising a switch device and a drive device that rotates the winding shaft of the reel.

(Embodiment) An embodiment of the present invention will be explained in detail below with reference to the drawings.

1 and 2, 1 is a reel for winding recording paper 2, and has a winding shaft 4 fixed to a drive shaft 3, and a paper clip 5 made of an elastic material is fitted onto this winding shaft 4. There is. The side plate 6 of the reel 1 is detachable via a side plate holder 7, and when the recording paper 2 has been sufficiently wound into a roll shape, the side plate 6 can be removed and the recording paper can be taken out. . The drive shaft 3 of the reel 1 is connected to a drive device 9 such as a shaded induction motor via a reduction gear 8 or the like.

Reference numeral 10 denotes a swingable lever, which has a ⊃-shaped bent portion 11 at its tip, swings with its other end as a rotating shaft 12, and has a cam having peaks and troughs around the rotating shaft 12. 14 is provided, and the cam 14 is brought into contact with a pin 16 of a limit switch 15 such as a micro switch. A steady rest 13 is also provided above the lever 10 to prevent it from colliding with the reel 1. Reference numeral 17 denotes a power supply side, which is connected to a power supply via a power supply plug or the like. 19 is a toggle switch for turning on the power, and 20 is a power lamp that lights up when the power is turned on.

Next, the operation of the apparatus according to the present invention will be explained based on FIG.

First, the recording paper storage device of the present invention has its reel 1.
The winding shaft 4 is set in a direction perpendicular to the output direction of the recording paper 2 from a printer (not shown), for example, and at a position below the recording paper outlet of the printer. Next, manually insert the tip of the recording paper 2 into the gap 11a of the ⊃-shaped bent portion 11 at the tip of the lever 10.
, and then wrap the leading edge of the recording paper 2 between the winding shaft 4 and the paper clip 5.
sandwiched between.

The printer operates differentially to record seismic waveforms, etc.
Even when the recording paper is output from the printer, the drive device 9 is initially stopped and the reel 1 does not move.
When the recording paper 2 comes to rest near the ⊃-shaped bent part 11 at the tip of the lever 10, its upward tension decreases, and the lever 10 lowers by its own weight from the upper position 21a to the lower position 21b by the length width of 21. . Thereby, the cam 1 pivotally connected to the proximal end side of the lever 10
Pin 1 of limit switch 15 at peak 14a of 4
6 is no longer pressed, and the current that was cut off by the limit switch 15 flows due to the pressing of the pin 16, causing the motor of the drive device 9 to rotate. This rotational force rotates the drive shaft 3 via the reduction gear 8,
A recording paper 2 is wound onto a reel by a winding shaft 4 of a reel 1.

Since the rolled up recording paper 2 is rolled up faster than the output speed of the printer, the ⊃-shaped bent portion 11 that presses the top surface of the recording paper 2 is lifted up, and the ridge 14a of the cam 14 on the base end side of the lever 10 is pushed up. Therefore, the pin 16 of the limit switch 15 is pressed, and the current of the motor of the drive device 9 is cut off, causing the reel 1 to
stop the rotation.

Recording paper 2 output from the printer in this way
When the recording paper 2 starts to accumulate and sag, the reel 1 of the recording paper storage device of the present invention automatically rotates the required angle to take up the recording paper 2. When the printer stops outputting the recording paper 2, the reel 1 Rotation will stop automatically.

(Effects of the invention) As detailed above in the examples, the present invention includes a reel that protrudes horizontally from the wall of the drive unit casing and is capable of winding recording paper, and a recording paper that lands on the winding shaft of the reel. a paper clip, and a pivotable lever having a ⊃-shaped bent portion at the tip, a bent base, pivotally attached to the casing wall, and extending parallel to the casing wall below the reel. , a recording paper storage device consisting of a cam provided at the base of the lever, a switch device that comes into contact with the cam, and a drive device that rotates the winding shaft of the reel has a simple structure, but the recording paper is easily removed by the printer. When the output is output, the reel automatically rotates to reliably wind the recording paper.

Therefore, it is particularly suitable for the recording paper storage device of the present invention to be used in a printer that does not record all the time, that is, a printer that operates intermittently and outputs recording paper from time to time.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an automatic recording paper winding device according to an embodiment of the present invention, and FIG. 2 is an electric circuit diagram for controlling the drive device. 1... Reel, 2... Recording paper, 3... Drive shaft,
4... Winding shaft, 5... Paper clip, 6... Side plate, 7...
... Side plate holder, 8 ... Reduction gear, 9 ... Drive device, 10 ... Lever, 11 ... ⊃-shaped bent part, 1
1a... Gap, 12... Rotating shaft, 13... Steady rest, 14... Cam, 14a... Mountain part, 15... Limit switch, 16... Pin, 19... Toggle switch, 20... Power lamp, 21...Length,
21a...Upper position, 21b...Lower position, 30
...Drive part casing wall.

Claims (1)

[Scope of utility model registration request] It has a reel that projects horizontally from the wall of the drive unit casing and can wind recording paper, a paper clip that lands on the winding shaft of the reel, and a ⊃-shaped bent part at the tip, and the base is bent. a swingable lever pivotally connected to the casing wall and extending parallel to the casing wall below the reel; a cam provided at the base of the lever; and a switch device in contact with the cam. A recording paper storage device comprising: a drive device that rotates the winding shaft of the reel.