JPS58143Y2 - Underwater detection device recorder - Google Patents

Description

[Detailed explanation of the invention] This invention is based on an endless belt stretched between an idle pulley and a drive pulley in the recorder of an underwater detection device, and the recording paper is sequentially fed out in a direction perpendicular to the running direction of the belt. Regarding a small recorder for an underwater detection device that draws a record by applying a received signal to a recording pen that is fixed to a belt and slides on recording paper, the number of assembly and electrical wiring steps can be particularly reduced, and therefore it is easy to manufacture. The present invention relates to a recorder for an underwater detection device that can be used.

In recent years, small boats have been equipped with underwater detection devices such as fish finders and depth sounders.

In a small boat, the space in which an underwater detection device can be installed is inevitably limited, so it is particularly required that the recorder, which constitutes most of the underwater detection device, be made as small as possible.

This invention provides a compact recorder for an underwater detection device that makes effective use of internal space and is easy to manufacture.

This invention will be explained below with reference to the drawings.

FIG. 1 shows an internal configuration diagram of a small recorder of a conventional underwater detection device.

FIG. 2 shows an embodiment of this invention.

In FIG. 1, an endless belt 1 is stretched between an idler pulley 2 and a drive pulley 3, and the drive pulley 3 is driven by an electric motor (
(not shown), it travels in the direction of the arrow.

Further, a recording pen 4 and permanent magnets 5 and 6 are fixed at predetermined positions on the endless belt 1.

The recording paper 7 is sequentially fed out in a direction perpendicular to the running direction of the endless belt 1.

The current-carrying rail 8 is fixed so as to be parallel to the endless belt 1, and a reflected signal from the water is supplied to the rail via a printed board 9.

Both ends of the recording pen 4 are connected to the current-carrying rail 8 and the recording paper 7 at the same time.
Since it slides on the recording paper, an oscillation line 11. School of fish12.
Submarine line 13 mag is drawn.

The reed switches 14, 15 are held by a holding base 16 opposite the permanent magnets 5, 6 and close to the belt 1 as the belt runs.

When facing the permanent magnet 5, the reed switch 14 sends out a pulse signal to a pulse vigilance circuit built into the printed circuit board 9, which generates a pulse signal for driving an oscillation circuit that generates an excitation signal for the ultrasonic transducer. The ultrasonic vibrator is excited to emit ultrasonic energy into the water.

At this time, since signals are supplied from the printed board to the current-carrying rail 8 and the recording pen is positioned above the recording paper, the oscillation lines 11 are drawn one after another.

On the printed board 9, a receiving amplifier circuit and the like outside the pulse generating circuit are incorporated.

All of the above components are housed within the recorder housing 10.

In the conventional device described above, the current-carrying rail 8, the reed switch 14, 15, the printed board 9, etc. are separately provided in the vicinity of the endless belt 1, and necessary wiring is provided between them.

Therefore, there were problems such as the need to attach the current-carrying rail 8, the holding stand 16, and the printed board 9 separately, and the wiring work had to be done in a narrow space where it was difficult to do the work.

This invention solves the above-mentioned problems by attaching the energizing rail and reed switch to a printed board in which an oscillation pulse generation circuit, a reception amplifier circuit, etc. are incorporated.

Hereinafter, parts denoted by the same reference numerals as those in FIG. 1 perform the same functions.

In FIG. 2, an endless belt 1, to which a permanent magnet 5.6 and a recording pen 21 are fixed at predetermined positions, is stretched between the driving pulley 3 and the idler pulley.

The endless belt 1 has an electric motor 2 connected to a drive pulley 3.
2 makes it run.

A current carrying rail 24 and reed switches 25 and 26 are attached to the printed board 23, or a part of a pulse generation circuit and a reception amplifier circuit that generates a pulse signal based on the output signal of the reed switch is incorporated. The printed board 23 is fixed so that one end of the recording pen 21 slides on the current-carrying rail 24 and the reed switches 25 and 26 are positioned on the trajectory of the permanent magnets 5 and 6.

A part of the circuit of the receiving section is built into the printed board 27.

The other end of the recording pen 21 is configured to slide on the recording paper 7 that is sequentially fed out.

The recording paper 7 is fed out from a feeding reel 28, passes through a roller 29 and a paper feed roller 30, and is sequentially wound onto a winding reel 31.

The electric motor 22 is held by a holding plate 32.

As described above, according to this invention, the current-carrying rail and reed switch are attached to a printed board in which a pulse generation circuit, a receiving amplifier circuit, etc. are incorporated, and this printed board is attached to a permanent structure where the reed switch is fixed on an endless belt. Since it is only necessary to fix the recording pen so that it slides on the trajectory of the magnet and on the current-carrying rail, wiring between the current-carrying rail and the reed switch and respective predetermined circuits can be easily performed, and assembly is also easy. It is possible to provide a small recorder for an underwater detection device that can perform the following operations.

In addition, in the above embodiment, a contactless element of a permanent magnet and a reed switch was used to control the emission time of ultrasonic energy, but the present invention is not limited to this, and other contactless detection elements may be used. For example, it is also possible to fix conductive pieces to both the belt and the printed board and bring them into contact to obtain the necessary signal.

[Brief explanation of drawings]

FIG. 1 shows an internal configuration diagram of a small recorder of a conventional underwater detection device. FIG. 2 shows an embodiment of this invention. 1 is an endless belt, 2 is an idle pulley, and 3 is a drive boo'
J-14 is a recording pen, 5 and 6 are permanent magnets, 7 is a recording paper, 8 is a current-carrying rail, 9 is a printed board, 10 is a housing of a recorder, 14 and 15 are reed switches, 16 is a holding stand, 2
1 is a recording pen, 22 is an electric motor, 23 and 27 are printed boards, 24 is an energizing rail, 25 and 26 are reed switches, 28 is a feeding reel, 29 is a roller, 30 is a paper feed roller, 31 is a take-up reel, 32 indicates a retaining plate.

Claims (1)

[Scope of utility model registration request] An endless belt is stretched between an idler pulley and a drive pulley, recording sheets are sequentially fed out in a direction perpendicular to the running direction of the belt, and a drive piece and a recording pen are held at appropriate positions on the endless belt, and a part of the pen is pulled out. In the recorder of the underwater detection device, at least the emission time control of ultrasonic energy is performed by sliding another part on the recording paper on the current-carrying rail provided parallel to the belt to draw the underwater situation on the recording paper. A detection element that sends an output signal to the pulse generation circuit when facing the energizing rail and the drive piece is attached to a printed board in which a pulse generation circuit that generates the pulse signal to be recorded is installed, and the printed board is attached to one of the recording pens. A recorder for an underwater detection device, characterized in that the part slides on the energized rail and is held so that the detection element is positioned on the travel trajectory of the drive piece.