JP2014044185A - Rope measuring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measuring device which measures several meters long synthetic fiber rope in a state where constant tension is loaded, and which can easily perform marking or the like of a cut position.SOLUTION: On a measuring desk 10, a movable table 31 is provided which loads a tension by weight of a dead weight 35 gripping a rope 1 and connected thereto. A roller 22 is provided which U-turns a rope 1, and furthermore, a measuring mark 11 matching with necessary length is displayed.

Description

  The present invention relates to an apparatus for measuring a synthetic fiber rope to a certain length.

When a synthetic fiber rope is cut into a certain length and finished into a product, the rope has an elastic elongation of up to several tens of percent, so it is necessary to measure under a certain tension.
Manufacturers of ropes, etc., measure while winding a long rope and ship it as a product, but this is how to apply tension and how to measure for measuring a length of about 7 meters at most. It has been left to the skill of the operator.

  Although there are descriptions in [Patent Document 1] [Patent Document 2] etc. about the measuring method of a long linear body at an electric wire or cable manufacturer, it is suitable for measuring a rope with a length of about several meters. Can not.

JP 2002-372414 A JP 2001-38524 A

  The present invention provides a method for quickly and accurately measuring the length of a synthetic fiber rope of about several meters.

  When measuring the length of an elastic rope to cut a synthetic fiber rope to a certain length of several meters, the length of the product is measured by applying a constant tension to the rope. The purpose is to suppress the variation of the thickness.

  Based on preset specifications, it is cut into several types of fixed lengths, so that the working space according to the length, the display mark that makes the cutting position easy to understand, and the long rope wound around the drum are fed out sequentially. However, the goal is to be able to load the tension without damaging the rope with a simple operation.

According to the first aspect of the present invention, there is provided a system in which one end of a long rope wound around a drum is gripped and fixed by hand or mechanically, and the other end is mechanically gripped to always load a constant tension.
When measuring a long rope, it is necessary to measure while continuously applying tension, but when cutting a rope to a certain length of several meters, load the tension one by one and measure it. This device was invented because it is more efficient to cut.

According to the second aspect of the present invention, there is provided a method of using a movable table and a weight that are movable by gripping a rope as a loading device that generates a constant tension.
As a method of generating tension, a drum with sufficient friction force is prepared separately from the take-up drum, the rope is wound around, the end is fixed, and then the drum is reversed with a constant torque. However, as compared with the method according to claim 2, the effect of tension loading is not changed, only the apparatus becomes complicated.
However, in the method shown in claim 2, since the tension is varied when the moving frictional resistance of the movable table is large, it is necessary to reduce the frictional resistance and to smoothly transmit the gravity of the weight to the rope.

  Further, when the rope is set on the movable table, if the movable table is moved to the initial position, the rope gripping work can be completed in one step. Therefore, in claim 2, the tension loading table on which the movable table is placed is inclined and movable. It was devised to move to the initial position by the weight of the table. In the method of returning to the initial position using the elastic force of the spring, the resistance force by the spring changes depending on the position, and as a result, the loading tension on the rope changes, but according to the present invention, it is constant regardless of the position at the time of tension loading. Tension is generated.

  According to the third aspect of the present invention, the display of the reference position of the scale, the position of the scale, that is, the cutting position is provided on the scale table. This is convenient when measuring the length according to several types of specifications, and enables the measurement work to be accurate and quick. It is convenient to display not only the reference position and the measuring (cutting) position but also the auxiliary measuring position necessary for the work. Furthermore, it is possible to display a measuring ruler and measure various lengths.

In Claim 4, the roller which makes a rope U-turn and the table which can move the roller according to specification length are provided.
By adopting this table, it is possible to improve the efficiency by making one-man work and to effectively use the space by shortening the measuring table.

According to the present invention, it is possible to work out a measuring and cutting operation as a short rope of about several meters by one person from a drum around which a long rope is wound up, so that work efficiency is greatly increased, and the rope is used as a product. Contributes to the manufacture of high-quality products with very little error in the specification length when assembled.
In addition, it can be used not only for ropes, but also for measuring elastic linear bodies, and by changing the number and position of U-turn rollers, it is possible to effectively use space by using an elastic linear body measuring device. Can be designed.

It is explanatory drawing which showed the example of the apparatus which measures while applying fixed tension | tensile_strength to a rope.

  In FIG. 1, a tension on which a gauge position display mark 11 for displaying a reference position of the gauge and a gauge position, a rope U turntable 21, and a tension loading table 31 are placed on the gauge table 10. A loading table 30 is provided.

  The rope U turntable 21 is equipped with a rope U turn roller 22, and the rope U turntable 21 can move on the measuring table 10 and can be fixed to the measuring table 10 at an arbitrary or predetermined position.

  The tension loading table 30 is slightly inclined, and the tension loading table 31 on the tension loading table 30 is stable at the lower position of the inclination, that is, at the initial position when no external force is applied due to its own weight and the inclination of the tension loading table 30. Stop.

  When starting the measurement, the rope U turntable 21 is set at a predetermined position, and the rope 1 to be measured is fed out from the winding drum 2 sent from the manufacturer and passed through the rope gripping bracket 33 of the tension loading table 31. Then, the direction is changed by the rope U turn roller 22 fixed to the rope U turntable 21, and it is arranged so as to reach the measuring position display mark 11.

  By setting the tension loading weight 35 to the initial position, the tension loading table weight connecting wire rope 34 is loosened, and the rope grip handle 32 of the tension loading table 31 moved to the initial position is operated to grip the rope 1. Then, the tension loading weight 35 is operated to the loading position while holding the end of the rope 1 by hand, so that a constant tension can be loaded.

  The operator meets the end of the rope at the reference position of the gauge and marks the rope at the measuring position, that is, the cutting position. That is, since the marking at the cutting position can be performed, an extremely efficient operation is possible.

  If the cutting position is determined, the tension loading weight 35 is returned to the initial position and the cutting operation is performed. However, the rope that has been erroneously gripped before the tension loading weight 35 is returned to the initial position. Since the movement range of the tension loading table 31 is limited to the minimum necessary even when the end of the cable is released, troubles such as the rope running away do not occur, so that cutting and cross-section processing can be performed with peace of mind.

DESCRIPTION OF SYMBOLS 1 Rope in measure 2 Drum which has wound unmeasured rope 10 Measuring table 11 Measuring position indication mark 21 Rope U turntable 22 Rope U turn roller 30 Tension loading table 31 Tension loading table 32 Rope grip handle 33 Rope gripping bracket 34 Tension loading table weight connection wire rope 35 Tension loading weight

Claims (4)

  The end of the rope wound around the drum or one end close to the drum is gripped and fixed by hand or mechanically, and the metal grip that is mechanically gripped at the end or end close to the drum loads the rope with a certain tension. Rope measuring device characterized by   The rope measuring device according to claim 1, wherein the device is a device for mechanically gripping and loading the tension. When the rope is movable on the measuring table in the length direction of the rope and no external force is applied, the inclination of the tension loading table and the table It has a table that returns to its initial position under its own weight or in other ways, and the table is provided with a metal fitting for gripping the rope, and the table generates a certain tension according to the weight of the connected weight. Characteristic rope measuring device   2. The rope measuring apparatus according to claim 1, wherein a display of a measuring scale reference position and a measuring position, or a ruler capable of measuring is displayed on a measuring table. One or more tables that can be moved and fixed on the measuring table in the length direction of the rope at a position according to the rope length specified in the specification, and one or more rollers fixed to the table A rope measuring device characterized in that the length of the measuring table is shortened by U-turning the rope one or more times with this roller

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