JPS5922487Y2 - trawl odometer - Google Patents

Description

[Detailed description of the invention] A trawl odometer that measures the distance traveled by a trawler on the seabed is desired in order to obtain research data, but there was no such odometer to date.

The trawl odometer is attached to the rear end of the trawl,
At the same time as the net is cast into the sea from the ship, it is lowered to the seabed.
It travels on the seabed while being pulled by a trawl net, and measures the distance traveled by the trawl net.

This trawl net odometer does not know what kind of running position it will land on the seabed when it is put into the sea, and its running position may turn around 180 degrees due to an obstacle on the seabed while it is running. It is necessary to be able to accurately calculate the distance traveled even when the vehicle is in a comfortable driving position.

An object of the present invention is to provide a trawl odometer that can accurately calculate the travel distance of a trawl even if the running position is reversed by 180 degrees.

An embodiment of the present invention will be described below with reference to the drawings.

The roller main body 1 is hollow inside, and the roller main body lid 2
is attached by a set screw 3.

The space between the roller main body 1 and the roller main body lid 2 is sealed by a backing 4 for honeydew.

Therefore, the roller body 1 is watertightly sealed by the roller body cover 2.

The center of rotation 5° 5' of the roller main body 1 is rotatably attached to the roller sub-frame 6 by shaft screws 7, 7'.

A draw line is attached to the draw line fixing hole 8 of the roller sub-frame 6, and this draw line is attached to the rear end of the bottom trawl net.

A main shaft 9 is provided inside the roller body 1, and one end of the main shaft 9 is removably supported inside the rotation center 5 of the roller main body 1, and a rotation stop pin provided at one end of the main shaft 9. 10 is a slit 1 provided in the roller body 1
1 so that the main shaft 9 rotates together with the roller body 1.

The other end of the main shaft 9 is detachably supported by a bearing portion 12 provided inside the roller body lid 2.

The main shaft 9 has a call wheel 13 and a number wheel 14, 15, 16.
The numeral wheel frame 18 supporting the number 17 is loosely fitted so that it always hangs down due to its own weight.

The calling car 13 is fixed to a number axle 19, and the number wheels 14 to 1
7 freely rotates on a number axle 19, and the call wheel 13 and each number wheel 14 to 17 are connected to each other by a carry mechanism (not shown).

The numbers on the call wheel 13 and number wheels 14 to 17 are displayed digitally through the reading window 20.

The call wheel 13 and the number wheels 14 to 17 form a digital counter, where the number wheel 14 displays the first digit and the number wheel 17 displays the thousand digit.

A first gear 22 is attached to the main shaft 9 via a first one-way clutch bearing 21 that transmits only the rotation of the main shaft 9 in the counterclockwise direction when viewed from the right side in FIG. The second shaft transmits only the rotation of the main shaft 9 in the rotational direction.
A second gear 24 is attached via a one-way clutch bearing 23.

The first gear 22 is a third gear 25 fixed to the numerical axle 19.
engage with.

The second gear 23 engages with the fourth gear 27 via the intermediate gear 26.

The shaft 28 of the intermediate gear 26 is supported by the number wheel frame 18, and
The gear 27 is fixed to the numerical axle 19.

A large number of anti-slip protrusions 29 are provided on the outer periphery of the roller main body 1.

First, a case will be described in which the roller main body 1 runs in a direction in which it rotates to the left when viewed from the right side in FIG.

When the roller body 1 rotates to the left, the main shaft 9 also rotates to the left integrally with the roller body 1.

At this time, the number wheel frame 18 is always suspended regardless of the rotation of the main shaft 9, and therefore does not rotate.

As the main shaft 9 rotates counterclockwise, the first one-way clutch bearing 21 and the first gear 22 rotate counterclockwise together with the main shaft 9, thereby causing the third gear 25 to rotate clockwise as shown in FIG. The call vehicle 13 is rotated in the direction from 0 to l via the axle 19.

Since the travel distance is the outer circumference of the roller body 1 multiplied by the number of rotations, the number of teeth of the gears 22, 25, 24, 26, and 27 is selected appropriately, and the carry is increased when the calling wheel 13 rotates once. By rotating the number wheel 14 by one scale (360°/10) by the mechanism to display a distance of 1 meter, the number wheels 14 to 17 can digitally display the distance traveled.

As the numerical axle 19 rotates clockwise, the fourth gear 27 rotates clockwise, the intermediate gear 26 rotates counterclockwise, and the second gear 24 rotates clockwise, but slipping occurs in the second one-way clutch bearing 23, causing the second gear The clockwise rotation of 24 is not transmitted to the main shaft 9, and the counterclockwise rotation of the main shaft 9 is not prevented.

Next, if the running posture is the opposite of the above, turning around 180 degrees and landing on the bottom, or if the running posture turns around 180 degrees due to an obstacle on the seabed while running, the roller body 1
Even though the directions of movement are the same, the direction of rotation of the main shaft 9 relative to the one-way clutch bearings 21 and 23 is reversed, so the roller main body 1 and the main shaft 9 rotate clockwise when viewed from the right side of FIG. via the clutch bearing 23
The gear 24 rotates clockwise as shown in FIG. 2, which causes the fourth gear 27 to rotate clockwise and rotate the call wheel 13 in the direction 0→1 via the numeric axle 9.

When the call wheel 13 makes one rotation, the number wheel 14 rotates by one scale by the carry mechanism, and in this way, the distance traveled is digitally displayed by the number wheels 14 to 17.

At this time, the first gear 22 is rotated counterclockwise via the fourth gear 25, but the first one-way clutch bearing 21 slips and does not prevent the main shaft 9 from rotating clockwise.

Before putting it into the sea, in order to read and record the counts on the number wheels 14 to 17, remove the shaft screws 7 and 7' and remove the roller pull rod 6 from the roller body 1 and the roller body lid 2. .

Then, the set screw 3 is removed, the roller main body cover 2 is removed from the roller main body 1, the number wheel frame 18 is pulled out together with the main shaft 9, and the counted value is continuously read from the reading window 20.

After reading, reverse the steps above to restore.

After the measurement is completed, when the roller is lifted from the sea onto the ship, the roller body lid 2 is opened again, the number wheel frame 18 is pulled out, the counted value is read, and the difference between the counted value before measurement is determined to obtain the travel distance.

Note that a glass window may be provided in the roller body 1 so that the counts on the number wheels 14 to 17 can be read without opening the roller body lid 2.

As explained above, the bottom trawl odometer of the present invention has a main shaft that rotates integrally with the roller body inside the roller body that is tightly sealed by the roller body lid,
A number wheel frame supporting a multi-digit number wheel and a call wheel connected by a carry mechanism is loosely fitted to the main shaft so that it is always suspended, and the first one transmits rotation of the main shaft in only one direction to the main shaft. The first gear is attached via a directional clutch bearing, the second gear is attached via a second one-way clutch bearing that only transmits rotation of the main shaft in the other direction, and the third gear is attached to the number axle that rotates together with the call wheel. and the fourth
The gears are fixed, the first gear is directly engaged with the third gear, and the second gear is directly engaged with the third gear.
The gear is engaged with the fourth gear via the intermediate gear, and the center of rotation of the roller body is rotatably attached to the roller pull rod, so even if the running position is reversed by 180 degrees, the travel distance of the bottom trawl can be accurately determined. It can be accumulated.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of one embodiment of the present invention, and FIG. 2 is a plane showing the rotation direction of a one-way clutch and gears. 1...roller body, 2...roller body lid, 4
...Watertight backing, 5,5'...Rotation center, 6
...Roller pull rod, 9... Main shaft, 13... Call car, 14.15.16.17... Number wheel, 18... Number wheel frame, 19... Number axle, 21...・First one-way clutch bearing, 22... First gear, 23... Second one-way clutch bearing, 24... Second gear, 2
5...Third gear, 26...Intermediate gear, 27...Fourth gear.

Claims (1)

[Scope of utility model registration request] A main shaft that rotates integrally with the roller body is provided inside the roller body, which is watertightly sealed by a roller body lid, and a number wheel frame that supports a multi-digit number wheel and a call wheel connected by a carry mechanism. , a first gear is attached to the main shaft via a first one-way clutch bearing that is loosely fitted to the main shaft so that it is always suspended, and that only transmits rotation of the main shaft in one direction, and only rotation of the main shaft in the other direction. The second gear is attached via a second one-way clutch bearing that conveys the information, the third gear and the fourth gear are fixed to the number axle that rotates together with the calling wheel, and the first gear is directly engaged with the third gear. , a bottom trawl odometer comprising a second gear engaged with a fourth gear via an intermediate gear, and a rotation center of a roller main body rotatably attached to a separate roller frame.