JP3051393U - Stanchion inverted device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To facilitate the inversion work of a stanchion provided on both sides of a transport trolley or the like. SOLUTION: The stanchion inverting device comprises a stanchion 1, a falling spring 2 and a moving pulley 3 attached thereto, a constant pulley 4 (41, 42, 43), a rope 5 hung on these, and a winding / rewinding device. It comprises a winding machine 6 for unwinding, a holding spring 7 for pulling the other end of the rope, and the like. [Effect] When the rope is pulled or loosened by the winder when the stanchion is upside down, the pulley is pulled or loosened by the tension, and the stanchion 1 is rotated around the center 9a of the support shaft 9 of the stanchion 1. Let the _first one 1 ₁
It can be inverted in order from up to the last one 1 _4. Work is easy and safe, and labor is saved.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a stanchion inverting device for a facility such as a loading table for long materials to be transported and a storage area for materials that need to be used in a stanchion-standing state or in a lying state.

[0002]

[Prior art]

 For example, long materials, steel plates, rolls, etc., such as steel pipes, steel bars, rails, etc., manufactured at steelworks were transported on large trolleys about 15 m long and about 4 m wide. In such a bogie, usually about four stanches are erected in the length direction to hold the load on the bogie. Depending on the type of load, this stanchion can be placed on a trolley when loading it from the top or rear, transporting it in a loaded state, or loading it from the side or using an empty vehicle. It was in a state where it was turned down when transporting it, and it had to be frequently turned upside down. In the past, two or three people used a crane or manually to invert a stanchion one by one.

[0003]

[Problems to be solved by the invention]

 However, such a stanchion is made of channel steel having a length of about 2 m and a width of about 180 mm, and is very heavy. Inverting work including insertion and removal into an upright hole is a heavy and dangerous and inefficient work. there were. Therefore, an object of the present invention is to solve the above-mentioned problems in the prior art, and to provide a stanchion inversion device capable of safely and efficiently inverting a stanchion with light work.

[0004]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, the present invention is directed to a plurality of stanchions which are supported so as to be able to be inverted by a rotating operation about a lower end side and which are arranged at intervals from each other, and A spring for biasing each of the plurality of stanchions in a direction in which each of the stanchions is tilted, a moving pulley attached to each of the plurality of stanches, a plurality of constant pulleys, and a plurality of hooks mounted on the moving pulley and the constant pulley. It has one rope whose end side is locked and one end side is moved, and a moving means that makes the rope movable, and the moving pulley and the constant pulley are provided when the one end side of the rope is moved. The stanchions are arranged in a positional relationship that allows the stanchions to be inverted.

The invention of claim 2 is characterized in that, in addition to the above, the other end side of the rope is locked by a holding spring having a spring force stronger than the spring force of the tilting spring.

According to a third aspect of the present invention, in addition to the features of the first aspect, the fixed pulley is provided with a lower front fixed pulley disposed near the lower end side with respect to each of the stanchions. It comprises an upper fixed pulley disposed above and a lower rear fixed pulley disposed near the lower end side, wherein the rope is the lower front fixed pulley, the upper fixed pulley, the moving pulley, and the lower rear fixed pulley. It is characterized by being pulled in the order of pulleys.

According to a fourth aspect of the present invention, in addition to the features of the first aspect, the moving means is driven by a motor.

[0008]

[Embodiment of the invention]

 1 and 2 show an example of a stanchion inversion device to which the present invention is applied. In FIGS. 1 (a) and 1 (b), the stanchions are slightly thicker and the pulleys and the like are shown relatively large, including their positions, in order to make the drawings easier to see. In this example, the stanchion inverting device is disposed on a loading platform 101 of a large bogie 100 for transporting a long material such as a steel pipe, a section steel, a rail, or a heavy material such as a steel plate or a roll material. , A pulling spring 2, a moving pulley 3, a constant pulley 4, a rope 5, a winder 6 as a moving means, a holding spring 7, and the like.

The cart 100 is, for example, about 15 m long and about 4 m wide. In this example, two stanchion inversion devices are provided symmetrically on both sides of the cart 100. Since these devices have the same structure, only one device will be described below. This device may be provided on one side only, or may be a device having a stanchion at the rear end 102 of the carriage 100. In this stanchion inverting device, the rotation support portion and the pulleys are mounted on the case 8 for each of the four stanchions as shown in FIGS. 1 (c) and 2, and are integrally unitized. In should be noted FIG. 1 (a), the brackets provided in the Number 1 in the stanchion, are displayed subjected successively 1 _1, 1 _2, 1 _3, 1 ₄ as subscripts a winder 6 side as the head . In the following, the ranking is displayed in this way as necessary, including the pulley.

In this example, the stanchion 1 is made of grooved steel having L, w, and h of 1900 mm, 180 mm, and 75 mm, respectively, and has a boss 1 b at a lower end 1 a thereof, and is mounted on the carrier 101. The boss 1b is supported by the support shaft 9 mounted on the rotating member 8 so that the boss 1b can be turned upside down by a 90 ° rotating operation about the center 9a as indicated by an arrow. In this embodiment, four stanchions 1 are arranged at a distance from each other as described above. Note that a stanchion is a long object that stands upright, and is not limited to grooved steel, but is made of materials that match the intended use, such as steel of other shapes, other metals such as aluminum, wood, and resin. Those are appropriately selected and used.

The tilting spring 2 is provided at a front and rear end of the case 2a having a built-in spring, a threaded telescopic rod 2b for generating a spring force by being extruded and compressed, and a rod for position adjustment. It is composed of nuts 2c, 2d and the like. The tilting spring 2 is provided on each of the four stanchions 1 and is compressed when the stanchions are set up as shown by the broken lines, and biases them by rotating them clockwise and tilting them. That is, when the stanchion 1 is set up as shown by the broken line, the nut 2c at the tip of the telescopic rod 2b of the spring 2 hits the stopper portion 8a of the case 8 and is completely compressed. Is generated. Thereby, an initial external force when the stanchion is defeated is applied.

The moving pulley 3 is attached to each of the four stanchions 1. In the present example, it is rotatably mounted on a support shaft 1e fixed to a support plate 1d welded to a bottom surface 1c of a channel steel forming a stanchion. When the movable pulley 3 is reciprocated between the position indicated by the solid line and the position indicated by the broken line in FIG. 1C, the stanchion 1 is inverted.

A plurality of the fixed pulleys 4 are provided for each stanchion 1 as a plurality. These are the lower front fixed pulleys 4 (41) arranged near the lower end side 1 a of the stanchion 1. It is composed of an upper fixed pulley 4 (42) arranged above and a lower fixed pulley 4 (43) arranged near the lower end side. These constant pulleys 4 are rotatably supported by a support shaft 4 a fixed to a support plate of the case 8. The ropes 5 are hung on these pulleys in the order of the lower front pulley 41, the upper pulley 42, the moving pulley 3, and the lower rear pulley 43.

By providing the front and rear fixed pulleys 41 and 43 below, the rope 5 can be guided along the installation surface of the stanchion inverting device. As a result, the rope is not in the way, and the work of loading and unloading materials on the loading platform 101 can be facilitated. Further, the rope can be passed under the stanchion when the stanchion is in a collapsed state, so that a very simple configuration in which the stanchion and the rope are linearly arranged can be provided.

As the moving pulley 3 and the constant pulley 4, sheaves of the same size are used in this embodiment. In addition, these pulleys may include a pulley with a groove or a frame, and may be a ring-shaped pulley that can rotate and move the rope while holding the hung rope. Although the rope is hung on the pulley, it may be wound around the pulley one or more times for the purpose of preventing it from coming off, providing appropriate transmission resistance, and shifting the position.

The rope 5 is hung on the moving pulley 3 and the fixed pulley 4 as described above. One end 5a of the rope 5 is wound around a winder 6, and is moved by winding or unwinding the other end. 5b is locked by a holding spring 7 fixed to the bed 101. The holding spring 7 has the same structure as the tilting spring 2, but its spring force is stronger than the spring force of the tilting spring. In this example, a wire rope (steel rope) is used as the rope 5. However, it may be a rope made of a suitable material using other metal or non-metal fibers.

As the winder 6, a commercially available ordinary electric winder equipped with a speed reduction device and a brake device for stopping is used. By using such an electric winder, it is possible to remotely control and automatically start and stop from the driver's seat of the vehicle that pulls the bogie, which greatly improves operability, labor saving, quick work, safety, etc. To be improved. However, a manual winding machine can be used, and even in such a case, the operability, etc., is higher than in the past, where two or three people used to stand up the stanchions individually one by one. Is greatly improved.

FIG. 3 to FIG. 5 are diagrams for explaining operations when a stanchion is set up and tilted by the above-described stanchion inverting device. The moving pulley 3 and the fixed pulley 4 are arranged in a positional relationship such that the stanchion 1 can be inverted when the other end 5a of the rope 5 is moved. That is, as shown in FIG. 3, the rope 5 is pulled with a tension T in the direction of the arrow so that the resultant force Ta = 2Tcos (α / 2) of the tension of the ropes on both sides of the moving pulley 3 and the center of the support shaft 9 of the stanchion 1. A counterclockwise moment for raising the stanchion 1 via the moving pulley 3 is generated by the product of the distance s and the distance s, and this moment is made larger than W (L / 2) cos θ which is the falling moment of the stanchion 1. Thus, a stanchion 1 can be set up. Therefore, the positional relationship between the moving pulley 3 and the constant pulley 4 is as follows: when the rope 5 is pulled with an appropriate tension T, 2T cos (α / 2) · s> W (L / 2) cos θ --- (1 ). Here, W, L, and θ are the angles formed by the weight, length, and horizontal of the stanchion 1, respectively, and α is the angle formed by the ropes on both sides pulling the constant pulley. α, θ, and s are values that change depending on the inverted angle of the stanchion. Here, in order to simplify the explanation, a decrease in the tension consumed by the rotational resistance of the movable pulley 3 generated when the rope 5 is pulled and moved is omitted.

FIG. 4 shows a tension state of the rope when the rope 5 is pulled to form a stanchion. Here, an actual state in which the rotational resistance of the pulley is considered is shown. That is, assuming that the tension of the winder is T and the tension for compensating the rotational resistance of the moving pulley 3 and the constant pulleys 4 (41 to 43) is t for all the pulleys, from the head on the pulling side. tension on both sides of the rope running blocks 3 ₁ to 3 ₄ sequential array of stanchions 1 (1 ₁ to 1 ₄₎ becomes, respectively, of FIG. That is, the tension to pull the movable pulley, the first thing 3 ₁ is lowered tension 4t increments used up (T-2t) and (T-3t), and the for the rotation of the following sequential pulley being four. Thus, four stanchion 1 ₁ to 1 ₄ are going to be filed in large moment due to high tension in order from the beginning of one. Then, T becomes to start the formula (1) in the first standing direction Sutansho down 1 ₁ adapted to satisfy the increased.

Meanwhile, when the stanchion 1 ₁ starts up, theta and increases becomes smaller cosθ of the right side of equation (1), falling moment of the stanchion is reduced. Further, on the left side of the equation (1), as shown in the comparison between the state of FIG. 3 and the state of FIG. 5 described below, cos (α / 2 The increase in the distance s is slightly larger than the decrease in). As a result, the head of the stanchion 1 ₁ stood start melt, collapse by a decrease and increase in the direction of the moment stand when the same tension of the moment, the tension T required for winding is being stanchions 1 ₁ reduction The angle of rise θ increases. As a result, in the next stanchion 1 ₂ and below Sutanshi ® down 1 _3, 1 _4, insufficient moment to stand, not Okiagara to 1 ₁ of standing state is completed. Then, 1 ₁ of Ri name larger again T after the completion of stand, to satisfy equation (1) the second stanchion 1 ₂ stands by, in sequence 1 _3, 1 ₄ so that the stand below.

Therefore, according to the stanchion inverting device to which the present invention is applied, only by once starting the winder, a tension is applied to the extent that the tension due to the frictional resistance of the pulleys is added to the tension for forming one stanchion. The four stanchions can be set up in order. As a result, the output of the winder can be minimized.

When the four stanchions stand completely, the winder 6 is stopped. At this time, as shown by the chain line in FIG. 1C, the nut 2c at the tip of the telescopic rod 2b of the falling spring 2 is pressed by the stopper 8a of the case 8 and is completely compressed. Then, as shown in FIG. 5, the rope 5 completely compresses the spring 2 at least through the moving pulley 3 (indicated by 3i as described later), and the spring 5 It is necessary to restrain the falling moment. In this case, in this example, the holding spring 7 is provided so that the movable pulley 3 is drawn with a force G sufficiently larger than the spring force F so that the standing state of the stanchion can be sufficiently stabilized. Therefore, the spring force T ₀ of the holding spring 7 is larger than the spring force F of Killed spring 2. As a result, the stanchion inverted device is in a balanced state as shown in FIG.

[0023] In the equilibrium stationary in this manner, frictional resistance of the pulley do not occur, the tension of the rope 5 are all T ₀ any part. Accordingly, in any order of the four stanchions, the equilibrium state as shown in the drawing is obtained. Therefore, the pulley number is added with i to indicate that the pulley has an arbitrary order. At this time, since the winder 6 is stopped, the tension of the rope is held by the brake of the winder. The difference between G and F is received by the stopper 8a of the case 8. The pulling force of the pulleys 41 to 43 due to the tension of the rope can be received by the case 8 as a matter of course.

When the stanchion shown in FIG. 5 is to be defeated from the stationary state, the winder is reversed and the rope 5 is fed out. At this time, as shown in FIG. 6, the rope 5 is pulled by the constant pulley 3 via the falling spring 2 and the stanchion 1, and the other end 5b is pulled by the holding spring 7, so that the state shown in FIG. On the other hand, since the moving direction of the rope is opposite, the tension relationship of the rope at the moment when the rope is extended has the opposite tendency to that in FIG. Incidentally, it shows the pulley of the stanchion 1 ₁ and 1 ₄ parts of the winding machine 6 side 6 and retaining spring 7 side and short illustrated ones of these intermediate saving.

When the rope 5 is paid out, as described above, the tension gradually decreases from the leading moving pulley portion, and as the cable 5 is pulled out, the tension further decreases, and the resultant force is smaller than the spring force of the falling spring 2. become stanchion 1 ₁ first top of goes fallen. In this case the second stanchion 1 _2, is positioned to an extent that kill spring 2 is the spring force is reduced a little stretched. When the inclination angle becomes larger top stanchion 1 ₁ further fall of the falling moment is increased, if the rate is appropriate unwinding of the rope, thereby to recover the tension of the rope drawer side to some extent, for stanchion 1 ₂ those of the movable pulley 2 ₂ following, the state of being pulled by the head of the movable pulley 2 ₁ and holding bar ne 7. Stanchions Consequently, other stanchion to stanchion 1 ₁ top drawer of the rope is continuously fall down completely holds the state of standing and stable, then collapse following stanchion 1 _2, the other in the same state 1 _3, 1 ₄ is successively fallen.

The operation of tilting the stanchion is easy and safe because the motor of the winder is simply reversed. In this case, the four stanchions gradually fall down in a stable state, so that the safety is high and the reliability of the device itself and the operation is high. In addition, since it can be operated by one person, labor saving during driving can be achieved. Even if the winder is a manual winder, operability, safety and labor saving can be achieved, although the degree is different from that of the electric winder.

According to the above-described stanchion inverting device, the stanchion can be stably inverted by a series of operations. Therefore, the device can be automated by detecting the inversion with a limit switch or the like. According to the results of experiments performed by the inventor using the apparatus of this example, the time required to set up and lower the four stanches after the start of the winder is 72 seconds and 78 seconds, respectively, and these times are as follows. It was always stable. Therefore, for example, if the motor is automatically stopped about 82 seconds after the start, the apparatus can be extremely easily automated by omitting the limit switch and the like.

Further, if a stanchion is made up by compressing the tilting spring 2 using the rope 5 as in the present invention, even if the load is mistakenly applied to the stanchion when handling a load, the rope or There is an effect that the impact force exerted on the stanchion is reduced by the elastic force of the tilting spring, and destruction or damage of the stanchion or the load can be prevented or reduced. In this case, the possibility of the cargo hitting the rear end stanchion is greater than that of the first stanchion, but the effect of reducing the impact force is larger than the rear end stanchion, which is advantageous.

FIG. 7 shows another example of the stanchion inversion device. In the apparatus of this example, the lower fixed pulley 41 and the upper fixed pulley 42 in FIG. 1 are omitted, and the rope 5 is lifted to some extent from the winder 6 or the lower fixed pulley 43 and is directly hung on the moving pulley 3. In this example, since the rope 5 cannot be passed under the stanchion 1, the moving pulley 3 is attached to the side of the stanchion. The other end 5b of the rope 5 is locked by a locking tool 10 fixed on the loading platform 101. However, as shown by a chain line in the drawing, a holding spring 7 may be provided and locked to the holding spring 7, similarly to the apparatus of FIG. Further, a cover may be provided on the rope or the pulley portion. The structures of the pulleys 3, 43 and the falling spring 2 are the same as those in FIG. It should be noted that, in FIG. 7, the dimensions and height position of the pulley are larger than those of the pulley as in FIG.

The mechanism that allows the stanchion to be inverted by the moving pulley and the fixed pulley using the tension of the rope can be configured in various forms by changing the number and arrangement of the pulleys. 2 shows the performed mechanism. Also in this device, the stanchion can be inverted by the tension of the ropes 5 on both sides of the moving pulley 3 as in the device of FIG.

When the holding spring 7 is not provided, the braking force of the winder will be the same as the spring force of the falling spring when the stanchion is standing. Therefore, a sufficient extra pressure cannot be applied to the standing state by the spring force of the holding spring, but the stanchion does not fall.

Further, when the stanchion is defeated, there is a possibility that the state of the stanchion from the beginning to the rear becomes somewhat unstable. That is, when the rope is pulled out by the winder to defeat the stanchions, only the depressing spring 2 of each stanchion pulls the rope, and the holding spring does not tighten the rope. Depending on the unwinding speed of the winder, if the stanchion on the leading side becomes large and the falling moment increases, the subsequent stanchion may start to stand up again, and may repeatedly fall and stand halfway . However, if the weight of the stanchion is relatively light, it does not matter much if the stanchion falls this way. In addition, by making the falling speed sufficiently slow, it is also possible to sequentially fall from the first stanchion.

In the above description, an example in which four stanchions are arranged linearly at the common level has been shown. However, rows may be shifted in the horizontal or vertical direction depending on the shape of the loading platform, or as described above. In the case where a stanchion is also provided at the rear part, the present invention can be applied to various stanchion arrangements by appropriately arranging the sheave and changing the direction of the rope.

[0034]

[Effect of the invention]

 As described above, according to the present invention, the stanchion having the predetermined configuration, the moving pulley, the falling spring, the fixed pulley, the rope, and the moving means are provided, so that, for example, the first stanchion and the second stanchion having two stanchions are provided. Assuming that it is constructed, one end of the rope is connected to the moving means, and the moving means, the first moving pulley of the first stanchion, the first constant pulley of the first stanchion, and the second The moving pulley is connected to the second constant pulley of the second stanchion, and the other end is locked at a fixed position. When the moving means moves the rope in the pulling direction, the rope from the moving means to the first moving pulley. The first stanchion is established by the combined force of the rope tension from the first moving pulley to the first constant pulley, and the second stanchion is similarly formed by the combined force of the rope tensions on both sides of the second moving pulley. Can Las making a down.

In this case, the rotation resistance acts when the rope is moved, and the moment in the direction in which the stanchion is caused to decrease as the stanchion stands. Therefore, it is necessary to stand one by one in the order of the first stanchion to the second stanchion. it can. Therefore, for example, even if the number of stanches is 4 to 5 or more, it can be set up without increasing the pulling force so much. As a result, if the moving means is, for example, an appropriately decelerated hand-wound winding machine, a plurality of stanches can be continuously set up by one person, so that the operation can be performed extremely safely and efficiently. In addition, the use of an electric winder can further reduce labor in work.

On the other hand, when the rope is moved in the loosening direction, the tension of the rope is weakened, and the starting force is applied in the direction in which the stanchion falls by the force of the falling spring. As a result, a falling moment due to the weight of the stanchion is generated, and the stanchion can be defeated simply by loosening the rope. Therefore, the operation of defeating the stanchion is easy, efficiency is high, work safety is secured, and work is labor-saving.

In the invention of claim 2, in addition to the above, the other end side of the rope is locked by a holding spring having a spring force stronger than the spring force of the falling spring, so that the standing state of the stanchion is strengthened. , And can be further stabilized. Also, even when a large number of stanchions are provided, it is possible to stably defeat one by one. That is, if the rope is loosened by the winding means to defeat the stanchions, all the stanchions will fall due to the spring force of the detent spring, but the stanchions in the rear row from the top will be tightened by the spring force of the holding spring. Only the first stanchion, which can be continuously slackened through the moving pulley, falls down, and the other stanchions remain standing until this is completed, and then fall down in order. As a result, the stanchion can be safely defeated with stable operation in order. In addition, the falling time of all stanchions becomes almost constant by such a falling manner. Therefore, it is possible to automate the stanchion inversion device.

In the invention according to claim 3, the fixed pulley is formed such that, for each stanchion, a lower front fixed pulley disposed near the lower end thereof and an upper fixed pulley disposed above the lower front fixed pulley. The lower and upper fixed pulleys are arranged near the side, and the rope is hung in the order of the lower front fixed pulley, upper fixed pulley, moving pulley, and lower lower fixed pulley. It can be guided on the installation surface of a certain stanchion inverted device. As a result, ropes do not hinder the loading and unloading work of materials in a cart for transporting materials to which the stanchion inversion device is mounted, and the work efficiency can be improved.

In the invention of claim 4, since the moving means is electrically driven, labor saving, quickness, safety and the like of the work can be further promoted. In addition, automation of the inversion work of the stanchion becomes easy.

[Brief description of the drawings]

FIG. 1 shows an example of a stanchion inverted device to which the present invention is applied, (a) is a side view of the entire arrangement, (b) is a plan view,
(C) is the side view which expanded the pulley part of one stanchion.

FIG. 2 is an enlarged plan view of a pulley portion of one stanchion of the device.

FIG. 3 is an explanatory diagram of an operation when a stanchion is formed.

FIG. 4 is an explanatory diagram showing a state of tension when a rope is wound by a winder to form a stanchion;

FIG. 5 is an explanatory diagram showing a force relationship when a stanchion is held up;

FIG. 6 is an explanatory diagram showing a state of tension when a rope is loosened by a winder to defeat a stanchion.

7A and 7B show another example of the stanchion inversion device to which the present invention is applied, wherein FIG. 7A is a side view of the entire arrangement and FIG. 7B is a plan view.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 stanchion 2 falling spring 3 moving pulley 4 constant pulley 5 rope 6 winding machine (moving means) 7 holding spring 41 lower fixed pulley 42 upper fixed pulley 43 lower fixed pulley

Claims (4)

[Utility model registration claims] 1. A plurality of stanchions supported so as to be able to be inverted by a rotation operation about a lower end side and arranged at an interval from each other, and biased in a direction of tilting each of the plurality of stanches when the stanchions are set up And a spring for defeating
A moving pulley attached to each of the plurality of stanches, a plurality of constant pulleys, one rope hung on the moving pulley and the constant pulley, the other end of which is locked and one end of which is moved; Moving means for moving the pulley and the constant pulley, wherein the moving pulley and the constant pulley are arranged in a positional relationship such that the stanchion can be inverted when the one end side of the rope is moved. Standing inverted device. 2. The stanchion inverted device according to claim 1, wherein the other end of the rope is locked by a holding spring having a spring force stronger than that of the tilting spring. 3. The fixed pulley is disposed, with respect to each of the stanchions, at a lower front pulley disposed near the lower end, an upper fixed pulley disposed above the lower pulley, and near the lower end. 2. The pulley is constituted by a lower pulley, a lower pulley, the upper pulley, the upper pulley, the moving pulley, and the lower lower pulley in this order. Standing inverted device. 4. The stanchion inverted device according to claim 1, wherein said moving means is driven by a motor.