JPH0242010Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a bobbin brake in a latching machine that winds a lashing wire around the outer periphery of a messenger wire and a cable in a spiral manner and bundles them together. It is related to the device.

[Conventional technology]

In a latching machine, the messenger wire and cable are passed through an inner cylinder, and rotatable bobbins are installed on both sides of the outer cylinder, which is rotatably installed around the outer periphery of the inner cylinder, and the lashing wire is wound around each bobbin. When one end is wrapped around a friction roller provided on the outer cylinder and locked to the messenger wire or cable, and the machine is pulled to one side, the lashing wire is paid out from the bobbin, which causes the friction The roller is rotated, and the pinion gear provided on the outer cylinder, which is integrated with this friction roller, is rotated.This pinion gear is engaged with the bevel gear provided on the flange of the inner cylinder, so the outer cylinder rotates around the outer circumference of the inner cylinder. do. In this way, while the outer cylinder rotates around the outer periphery of the inner cylinder, the lashing wire is let out from the bobbin, and is wound around the outer periphery of the messenger wire and cable in a spiral manner, thereby bundling them together.

A braking device is required for the bobbin around which the latching wire is wound. This is because the lashing wire is rigid, and if the bobbin is left free, it will come loose. Further, as mentioned above, the lashing wire fed out from the bobbin requires back tension in order to apply rotational force to the friction roller. For these reasons, a braking device is provided on the bobbin, and this braking device determines the force with which the lashing wire is wound around the electric wire. This winding force must be adjusted depending on the wire type of the lashing wire as well as the wire type of the messenger wire and cable. Conventional brake devices are installed on individual bobbins, and brakes are applied to each bobbin.

[Problem that the invention attempts to solve]

On the other hand, recent lashing machines have a bobbin installed inside an outer cylinder, and lashing wires are fed out from the bobbins on both sides, so it is necessary to make the winding pitch and winding force of the lashing wires on both sides uniform. However, in the conventional braking device described above, braking is applied to each bobbin, so it is extremely difficult to balance the braking of both left and right bobbins.

[Means for solving problems]

This idea is based on a latching machine with a shaft erected on the outer periphery of the outer cylinder approximately in the center between the rotatable bobbins provided on both sides of the outer cylinder, and a shaft between the rising pieces on both sides of the roller support frame that is symmetrical about this axis. Through the center hole of the horizontal piece, a rotatable roller is provided on each of the rising pieces on both sides, which can freely contact the outer periphery of the flanges of the bobbins on both sides, and a roller support frame can be freely tightened on the threaded part of the shaft. A stopper is provided to which a tightening screw is screwed and which prevents rotation of the roller support frame.

[Effect]

This idea is to apply brakes to both bobbins.
When the tightening screw screwed onto the shaft passing through the roller frame is tightened, the rollers rotatably supported by the rising pieces on both sides of the roller frame push the outer periphery of the flanges of the bobbins on both sides. This frictional force is used to brake the rotation of the bobbin, and by adjusting the tightening of the one tightening screw, the rotation of the bobbin on both sides can be braked at once and uniformly.

〔Example〕

An embodiment of this invention will be described below with reference to the drawings. An outer cylinder 2 is rotatably provided on the outer periphery of an inner cylinder 1, rotatable bobbins 3, 3 are provided on both sides of the outer surface of the outer cylinder 2, and the inner cylinder Friction rollers 6, 6, which are integral with two pinion gears 5, 5, which mesh with a bevel gear 4 provided on the rear flange 1a of the cylinder 1, are rotatably provided on both sides of the outer surface of the outer cylinder 2, respectively. An auxiliary roller 8 and a feeding roller 9 are provided at both ends of a substantially L-shaped support rod 7 supported by the shaft of each of these friction rollers 6, respectively. Also, the above Tsuba 1
A centering mechanism 10 is provided outside a. A pedestal 11 is fixed to the top of the outer periphery of the outer cylinder 2, that is, to the outer periphery of the outer cylinder 2 approximately in the center between the bobbins 3, 3 on both sides, and the pedestal 11 has raised edges on both sides in the front and back direction of the lashing machine. Edges 11a, 11a are provided. On this pedestal 11, a shaft 12 whose base part passes through the pedestal 11 and is screwed into the outer cylinder 2 is erected, and a roller support frame 13 is formed by passing a horizontal piece 13b between the rising pieces 13a, 13a on both sides. The center hole 14 made in the horizontal piece 13b is fitted into the shaft 12, and the roller support frame 13 is placed on the base 11. Then, the roller support frame 13 is prevented from rotating by the rising edges 11a, 11a on both sides of the base 11. The rising pieces 1 on both sides of this roller support frame 13
Two pairs of rollers 15, 15, 1 on the outer surface of 3a, front and rear
5, 15 are provided, and each pair of rollers 15, 1
5 can freely contact the outer periphery of the inner collar 3a of the bobbin 3 on both sides. Each of these rollers 15 is attached to a bolt shaft 16
The roller 15 and the collar 17 are passed through the rising piece 13a of the roller support frame 13, and the nut 18 is screwed onto the end thereof, and the bolt shaft 16 is fixed to the rising piece 13a. It rotates through a bearing, and a tire 19 is mounted on the outer surface of the outer periphery.
is formed. A cylindrical elastic body 20 is mounted on the shaft 12 by passing the shaft 12 through the central hole 20a, and a threaded portion is formed on the shaft 12 above the elastic body 20, and a tightening screw 21 is formed on the threaded portion. is screwed on.

In this embodiment, lashing wires (not shown) are wound around the bobbins 3 on both sides, and one end of each lashing wire is pulled out to connect the auxiliary roller 8.
It is then wound around the friction roller 6, placed on the feed-out roller 9, and secured to a messenger wire (not shown) or a cable (not shown). The braking of the rotation of the bobbin 3 is adjusted depending on the type of the lashing wire, messenger wire, cable, etc. This is the tightening screw 21 mentioned above.
When tightened, the horizontal piece 13b of the roller support frame 13 is pressed against the base 11 via the elastic body 20, and the two pairs of rollers 15 supported by the rising piece 13a of the roller support frame 13 are pressed against the collar 3 of each bobbin 3.
a Press the outer periphery. This allows the bobbin 3 on both sides to
It is possible to apply braking evenly to the rotation of 3.

In this embodiment, a pair of rollers 15, 15 spaced apart from each other is pressed against the outer periphery of the collar 3a of each bobbin 3 to ensure braking. In addition, in the case of the brake device of this invention, the bobbins 3, 3 are rotatably fixed to the outer cylinder 2, and the inner collar 3a of each bobbin 3 does not move in the axial direction of each bobbin 3. It takes a while and is preferable. Further, in the above embodiment, the tightening screw 21 and the roller support frame 1
An elastic body 20 is mounted on the shaft 12 between the shaft 12 and the horizontal piece 13b of the bobbin 3 to relieve rotational braking of the bobbin 3, but the elastic body 20 is not an essential requirement for this invention.

[Effect of idea]

As described above, this idea involves fitting the center hole of the symmetrical roller support frame into the shaft that stands up on the outer periphery of the outer cylinder located approximately in the center of both bobbins, and then screwing the tightening screw onto the shaft from above. Therefore, by adjusting the degree of tightening of this one tightening screw, the rollers on both sides of the roller support frame uniformly press the outer circumferences of the flanges of the bobbins on both sides, and the rotational braking of the bobbins on both sides is balanced. This is extremely simple and reliable compared to the conventional method of applying rotational braking to each bobbin to balance the braking of both bobbins. Moreover, the braking of the rotation of the bobbin must be adjusted depending on the type of latching wire, messenger wire, or cable, but with this invention, it is extremely easy to do this by simply adjusting the tightening screw.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of a lashing machine using this invention, FIG. 2 is a plan view thereof, and FIG. 3 is an enlarged end view taken along the line A--A in FIG. 1. In the figure, 1 is the inner cylinder, 2 is the outer cylinder, 3 is the bobbin, 3
a is the tsuba, 4 is the bevel gear, 5 is the pinion gear, 6
is a friction roller, 11 is a pedestal, 12 is a shaft,
13 is a roller support frame, 15 is a roller, 20 is an elastic body, and 21 is a tightening screw.

Claims (1)

[Scope of utility model registration request] A shaft is raised on the outer periphery of the outer cylinder approximately in the center between the rotatable bobbins provided on each side of the outer cylinder of the latching machine, and a horizontal piece is provided between the rising pieces on both sides of the roller support frame that is symmetrical about this axis. A roller is rotatably provided in each of the rising pieces on both sides through the center hole of the shaft, and can freely contact the outer periphery of the flanges of the bobbin on both sides, and a tightening screw that can freely tighten the roller support frame is installed in the threaded part of the shaft. A braking device for a bobbin in a lashing machine, comprising a stopper to which the roller support frame is screwed and which prevents rotation of the roller support frame.