JPS5818546B2 - Harigane Kenkahouhou Oyobi Sonosouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a suspension method and apparatus for stretching a wire between two suspension points, such as between two fixed objects or between two busbar wires.

Conventionally, when suspending wire in horticulture, such as on a fruit tree shelf, one end of the wire is secured by wrapping it around one suspension point, such as a post, crosspiece, or wire that has already been stretched, and the other end is secured by hand or on a bench. Suspension work was carried out by pulling and fixing it around other suspension points such as pillars, crossbars, and busbar wire.

However, for these operations, there are two lines from 6th line to 12th line (
Wires as thick as 5.2M to 2.8M are often used (and their rigidity is comparable to that of a human), so bending, cutting, and pulling the wire to the extent that it does not slacken is difficult for humans. If you do this with your hands, it not only takes a lot of force and causes great fatigue, making continuous work difficult, but also handling the wire directly with your hands can cause the wire to get stuck in your hand and cause you to cut it. Because the gripping force was not sufficient, there was a high risk that the wire would come off and form a bulge at the end of the wire, making it an extremely unsafe operation.

Furthermore, even when handling the wire using a bench or pliers, there is a limit to grip strength and it is not possible to pull the wire with a large tension, which is labor-intensive and dangerous.

Furthermore, since it requires labor and has low safety, the work ability is low.

Furthermore, if you are working with your hands, add 30cmj' including the grip allowance.
Although it is necessary to make the wire extra long, this extra length must be cut with a large wire cutter after suspension, which takes a considerable amount of time and impedes work efficiency. It was something.

In addition, auxiliary tools such as chain blocks are sometimes used to assist human labor, but they are extremely difficult to attach to and remove from the wire, making them inconvenient to handle.

The present invention eliminates the above-mentioned drawbacks of the conventional chuck by providing two sets of one-way chucks that move relative to each other, and can be operated with little human power, reducing labor and preventing danger during work. Highly safe, easy to handle, and easy to work with.
The object of the present invention is to provide a wire suspension method and device that can significantly improve the performance.

A second object of the present invention is that by configuring the one-way chuck so that the wire can be taken in and removed from the direction perpendicular to the axis, it is possible to take in and remove the wire from the direction perpendicular to the axis. A wire suspension method and method that enables devices to be easily attached or detached at a designated location even during the process, thereby further reducing labor, preventing danger, and improving work efficiency. I'm disappointed in you for providing that device.

The present invention is a suspension method in which a wire is stretched between two suspension points, in which wires are taken into two sets of one-way chucks A and B, and one chuck A of the two-way one-way chucks is connected to the two sets of one-way chucks A and B. latches relatively to one of the suspension points,
A wire suspension method characterized in that the other chuck B is moved relative to the correction chuck A (reciprocatingly in the direction of the wire to draw one end of the wire to the one suspension point, and two sets are arranged in the longitudinal direction). The chucks A and B have a wire holding space inside, one chuck A is connected to a locking mechanism to a fixing point, and the other chuck 7'B is a chuck. A wire suspension device characterized in that it is held so as to be able to reciprocate in the direction of the wire relative to A, and a wire in which the wire can be taken in and removed from a direction perpendicular to the axis. A suspension method and device.

To explain the present invention with reference to the drawings as an embodiment, when a wire is suspended between two bus wires as in a fruit tree rack, the finished state is as shown in FIG. 1′
A suspension wire 2 whose both ends are formed into a coil shape and entwined is suspended with a certain required tension.

The coil parts at both ends are as shown in Figure 2 (bus wires 1, 1'
Preferably, a sleeve 3 made of plastic or the like having slits is placed over the sleeve 3 and the coil portion is formed thereon.

(If the wires touch each other directly, the plating will peel off and rust will occur, but this can be prevented by interposing the plastic sleeve.

) A suspension device is used to suspend the wire as described above, and the one-way chuck 4, which is the main part thereof, has a body 12 on the outside as shown in FIGS. 3 to 5.

The body 12 has a substantially cylindrical shape and has a conical inner surface 28 that becomes narrower toward the end.
9, and the other end is provided with an opening 30 through which the wire 2 can pass, and the space between the openings 29 and 30 is for holding the wire.

Furthermore, an opening groove 31 is provided in the wall of the body 12 in the axial direction, so that the outside and the wire holding space communicate with each other.

Inside the body 12, a ball receiver 17 containing a plurality of (three in this embodiment) balls 13 is movably provided.

The outer periphery of the ball receiver 17 is a conical outer surface 32 having a taper that matches the conical inner surface 28, and has a wire holding space inside.

Three balls 13 are arranged at approximately 120° intervals and housed in guide holes 33 so as to be movable in the radial direction, and have a conical outer surface 32 and an inner surface that can move in and out of the wire holding space.

An open groove 3.4 is provided in the parallel ball receiver 17 by twisting the ball 13 in the axial direction, and the outside communicates with the wire holding space.

A spindle 14 is attached to the end of the ball receiver 17 with a larger diameter.
It is stopped by 6.

A spring 1 is attached around the spindle 14 inside the body 12.
8 is provided so that the ball receiver 17 is always given a force to be pressed against the inner surface 28 of the cone.

A guide groove may be provided instead of the spindle 14. 1. When the one-way chuck 4 configured in this way does not hold a wire inside, the spring 18 is inserted as shown in FIG. The ball receiver 17 is pressed against the conical inner surface 28 by force, and the balls 13 are pushed inside and are in a state where they are almost in contact with each other.

Next, to keep the wire in place, spindle push plate 1
5 to separate the ball receiver 17 from the conical inner surface 28, allowing the ball 13 to move freely, and opening the wire 2 into the grooves 31, 3.
4 and take it into the wire holding space from the direction perpendicular to the axis, or conversely, put the chuck 4 itself over the wire 2 and take it in, and if you stop pulling the spindle push plate 15, the ball receiver 13 will spring. It is pushed again by a force of 18.

However, since the wire 2 is sandwiched between the balls 130, the balls 13 cannot sink below the conical outer surface 32 and hit the inner conical surface 28 midway, thereby maintaining equilibrium in the state shown in FIG.

In this state, even if the wire 2 is chipped in the direction A (or even if the chuck 4 is pulled in the direction B), the wire is gripped and held even more firmly by the wedge action of the taper and will not come off.

Conversely, if a force is applied to the wire 2 in the B direction (or if the chuck 4 is pulled in the input direction), the wedge will come off and the wire 2
can be moved freely, thus demonstrating the functionality of a one-way chuck.

When removing it, pull out the spindle push plate 15 by a certain amount to free the ball 13.

It can be removed very easily on the spot by moving the wire 2 in a direction perpendicular to the axis or by lifting the chuck 4 itself.

That is, since there is no need to move the wire in the axial direction to insert or take it out, the wire can be easily attached and detached even when both ends of the wire are fastened or when the position of the chuck cannot be moved in the axial direction.

FIGS. 6 and 7 show an embodiment of a wire suspension device using two sets of one-way chucks constructed as described above.

A set of one-way chucks A4-a is attached to the frame metal fitting 5 by a fixing holder 6.

The other one-way chuck B4b is disposed coaxially with the chuck A4a, and is supported by the rudder 7 so as to be able to reciprocate in the axial direction relative to the frame fitting 5 during movement.

A support pin 10 is provided on the upper bracket of the frame metal fitting 5 to swingably support the operating lever 8.

A long hole 35 is provided in the middle of the operating lever 8, and the chuck B
The chuck B4b is engaged with a pin 9 provided on the outer surface of the chuck B4b, and the swinging of the operating lever 8 causes the chuck B4b to reciprocate in parallel.

21 is a reciprocating spring. Reference numeral 36 denotes a bundle fixed to the frame metal fitting 5, which is held in one hand along with the operating lever 8 to absorb the operating reaction force.

A pawl 11 is attached to the rear end of the frame fitting 5 so that it can be hung on the bus wire 1.

The length of the pawl 11 can be arbitrarily selected using a fixing nut 24.

The rod 25 is supported by the frame metal fitting 5 in a reciprocating manner, and one end is connected to the spindle push plate 15a of the chuck A4a via a connecting member 37.

A bundle 19 is attached to the other end, and the rerod 25 is always pushed toward the bundle 19 by the action of a spring 22.

Further, a locking metal fitting 21 is provided at the front end of the frame metal fitting 5, and a locking pin 26 is inserted by slightly rotating the bundle 19.
When hooked onto the lock fitting, the rod 25 is held in its retracted state, and the chuck A4a is in an unrestricted state via the connecting member 37 and the spindle pusher plate 15a, allowing the wire 2 to be freely moved and attached/detached.

20 is a guide roller.

To explain the wire suspension work using the wire suspension device configured as above, first, the bus wire 1 in FIG.
One end of the suspension wire 2 is wrapped around one side of the wire using the sleeve 3, and the other end is extended toward the other generatrix wire 1'.

On the other hand, hook the claw 11 of the wire suspension device onto the bus wire 1',
The bundle 19 is pushed in to make the chuck unrestrained, the wire 2 is taken into the wire holding spaces of the chucks A4a and chuck B4b from the direction perpendicular to the axis through the open grooves 31 and 34, and the bundle 19 is returned to the chuck. Place A4a in a restrained state and grasp wire 2.

At this time, if the guide roller 20 is placed on the wire 2, the device can be operated in a stable state.

If the bundle 36 is supported with one hand and the operating lever 8 is swung back and forth, the chuck B4b is moved to the chuck A4a.
When approaching the wire 2, the chuck B4b becomes restrained and the wire 2
Grab it and send it to the left.

On the other hand, the chuck A4a becomes unrestricted and allows the wire 2 inside to move to the left.

Next, when chuck B4b moves away from chuck A4a, chuck B4b becomes unrestrained, but chuck A4a
grips wire 2, so wire 2 does not move.

By repeating this operation, the wire 2 is gradually drawn closer and tensioned with a tension corresponding to the force of the operating lever 8.

After the required tension is reached, the end of the wire 2 is cut leaving a certain length beyond the generatrix wire 1', and this constant length is wrapped around the generatrix wire 1' using the sleeve 3.

In this case, it is convenient to use a wire end winding device in which the wire end is wrapped around the generatrix wire 1' by a roller rotating around it.

After that, push the handle 19 and move the operating lever 8 to release the restraint of chuck A4a and chuck B4b, remove 11 from the generatrix wire 1', and lift the entire wire suspension device upwards, and the wire 2 will open the groove 31°34 It can be removed by going through it.

Since the above-mentioned implementation row has such a structure and function, a large tensile force is generated with a small force due to the lever ratio of the operating lever 8, and even if the force is released, the chuck holds the wire, so the force is continuously applied. It is extremely safe because the labor force is greatly reduced, and the wire under tension is not directly touched, and even if you accidentally release your hand or loosen your hand during work, the wire 2 is securely grasped. High quality (also Chuck A
Even if you accidentally touch the handle 19 for releasing the restraint of the chuck 4a, the spring 22 will immediately return it to the restraint state, and the other chuck B
Since 4b is in a restrained state, it acts as a double safety mechanism.

In addition, especially when attaching and detaching the wire, the wire can be taken in and removed by simply moving it in a direction perpendicular to the axis. Even after the wire has been suspended, it can be immediately and easily removed. In addition, the operating force is small and the device is small, making it easy to handle and greatly increasing work efficiency. can be improved.

Furthermore, when winding the end of the suspension wire around the bus wire in a coiled manner, the wire at that portion is not under tension, so the winding operation does not require any force, is safe, and can be done reliably in a short time.

Furthermore, since the operation is stable, it is easy to adjust the operating force, and the wire can be further tightened with almost the same pulling force.

In this case, if the pawl 11 is attached to the frame fitting 5 via a spring or the like so that the tension can be displayed, the tension can be adjusted more accurately.

Further, by using the guide roller 20, the wire can be smoothly inserted into the chuck, and the device can be stabilized even during tensioning work.

The chucks A and B do not necessarily have to be assembled into an integral frame, and may be structured so that they can be attached, detached, and moved independently.

In that case, the frame of chuck A, which is fixed relative to the suspension point, is fixed to the suspension point by the pawl 11 as in the above example, but the frame of chuck B, which moves relative to chuck A, is It may be directly locked to the suspension point with a locking device, or it may be locked to the frame of 1 chuck A.

Moreover, the chucks A and B do not necessarily have to have a structure that allows the wire to be attached and detached in a direction perpendicular to the axis.

In this case, it is inconvenient to attach and detach the wire whose both ends are fixed, but the effect of gripping the wire and pulling the wire by the relative movement of chucks A and B is exactly the same, and the structure becomes simpler. It also has the advantages of

This structure is sufficiently practical when used in places where attachment and detachment are infrequent.

For example, attach chuck A and chuck B to separate frames,
Chuck A has a structure without opening grooves 31 and 34, and is secured to the busbar wire 1' with a simple frame and claws, and chuck B has a structure with opening grooves 31 and 34, and is assembled into a frame with a reciprocating mechanism. The frame is locked to the busbar wire 1'.

Since the chuck B is reciprocated relative to the chuck A by the operating lever, the wire 2 is attracted and gripped in the same manner as in the previous embodiment.

Even if you remove chuck B with its frame while leaving chuck A in place after wire 2 has been tensioned to the specified tension and position, chuck A will still not work.
Since the wire 2 is reliably suspended by the gripping action, there is no need to wrap and lock the end of the wire, which simplifies the work and shortens the time.

Moreover, when retightening is required after the suspension has been suspended, if chuck B unit is attached, chuck A can be used as is and the work can be carried out immediately, which greatly contributes to improving work efficiency and quality of work. It is.

The chuck B may also have a structure without the opening grooves 31 and 34 if the frequency of attachment and detachment is low.

Although the above embodiments are for gardening, the suspension method or suspension device of the present invention can be applied to other cases where a wire is stretched between two suspension points.

Further, although ball chucks are shown as a row of one-way chucks in the above embodiments, other types of one-way chucks other than balls, such as a horizontal piece type, may be used.

When a ball is used, the wire can move smoothly in an unrestrained state.

Further, if the handle 36 and the gripping portion of the operating lever 8 are both placed directly below the wire, the operation will be stabilized without generating a moment in the horizontal plane during operation.

In addition, the operation will be more stable if the operating force is applied in the direction of pulling both hands apart, rather than in the direction of pushing them together.

For example, when attaching the handle 36 to the rightmost end of the frame metal fitting 5, the handle 36 is operated while pulling the operating lever 8 apart.

In this case, by replacing the fixing chuck A4a to the right and the movable chuck B4b to the left, it becomes easy to arrange the handle 36 on the right and the operating lever 8 on the left.

In the present invention, a wire is taken into two sets of one-way chucks A and B, one of the two sets of one-way chucks is relatively locked to a suspension point, and the other chuck B is
By reciprocating the wire in the direction of the wire relative to the chuck A and pulling one end of the wire to the point where it is to be suspended, the operation can be performed with a small amount of human power, reducing labor and reducing labor during work. It is possible to provide a wire suspension method and device that prevents danger and is highly safe, easy to handle, and greatly improves work efficiency. It is possible to provide a wire suspension method and device that further increases the above-mentioned effects of reducing labor, preventing danger, and improving work efficiency by making it possible to take in and remove the wire, which has extremely great practical effects. be.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing a state in which the wire is suspended between the busbar wires, and FIG. 2 is a front view thereof.
Fig. 3 is a longitudinal cross-sectional view of the one-way chuck, Fig. 4 is the same when the wire is gripped, Fig. 5 is a cross-sectional view taken along the line I-I of Fig. 4,
FIG. 6 is a vertical sectional side view of the wire suspension device, and FIG. 7 is a front view thereof. 1... Bus wire, 2... Combined metal, 3... Sleeve, 4
゜4a, 4b...Chuck, 5...Frame metal fittings, 8...
・Operation lever, -11... pawl, 12... body,
13...Ball, IT...Ball receiver, 18...
Spring, 19...Bundle, 22...Spring, 28...
- Cone inner surface, 31, 34...open groove, 32...cone outer surface, 36...bundle.

Claims (1)

[Claims] 1. In a suspension method in which a wire is stretched between two suspension points, the wire is taken into two sets of one-way chucks A and B, and one chuck A of the two sets of one-way chucks is The chuck B is relatively locked to one of the two suspension points, and the other chuck B is reciprocated in the direction of the wire relative to the chuck A, thereby drawing the wire to the one suspension point. 2. In a suspension method in which a wire is stretched between two suspension points, the wire is taken into two sets of one-way chucks A and B that can take in and remove the wire from a direction perpendicular to the axis, and one of the two sets of one-way chucks The chuck A is relatively locked to one of the two suspension points, and the other chuck A is reciprocated in the direction of the wire relative to the chuck A, so that the wire is fixed to the one of the two suspension points. A wire suspension method characterized by pulling the wire to the anchor point. 3. It has two sets of one-way chucks arranged in the longitudinal direction and B, the chucks A and B have a wire holding space inside, and one chuck A is connected to a locking mechanism to a fixing point, A wire suspension device characterized in that the other chuck B is held so as to be movable back and forth in the direction of the wire relative to the chuck A. 4. It has two sets of one-way chucks A and B arranged in the longitudinal direction, and the chucks A and B have a wire holding space inside and have an open groove in the longitudinal direction communicating with the outside and the wire holding space. allows the wire to be taken in and removed from the direction perpendicular to the axis; one chuck A is connected to a locking mechanism to the fixing point, and the other chuck B is connected to chuck A.
1. A wire suspension device, characterized in that the wire suspension device is held so as to be able to reciprocate in the direction of the wire relative to the wire.