JP4264688B2 - Heavy load support - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a weight set support. Specifically, it is particularly suitable when it is necessary to move a heavy object in the horizontal direction and set the heavy object in a gap without extra space, and set the heavy object with a simple configuration. It is an object of the present invention to provide a heavy load set support tool that can shorten the time and improve the work efficiency.
[0002]
[Prior art]
As an example of a conventional method for setting a heavy article, a method for setting a valve attached to a water supply pipe will be described with reference to FIG.
[0003]
In FIG. 12, 110a and 110b are water supply pipes for supplying water to, for example, a large number of sprinklers arranged in a vehicle tunnel, and water falls into the water supply pipes 110a and 110b at many points in the tunnel. A valve 100 such as a prevention valve or a check valve is attached.
[0004]
In that case, conventionally, as shown in the drawing, the valve 100 is hung on the crane anchor 200 via the wire 210 at a certain height from the concrete floor C, and then near the gap between the water supply pipes 110a and 110b. Until the valve 100 is moved.
[0005]
Therefore, the parallelism between the joint surfaces 102a and 102b of the flange portions 101a and 101b of the valve 100 and the joint surfaces 112a and 112b of the flanges 111a and 111b fixed to the ends of the flowing water pipes 110a and 110b is obtained. In this way, several workers hold the valve 100 horizontally and set it so as to push it into the gap between the water supply pipes 110a and 110b.
[0006]
[Problems to be solved by the invention]
However, the weight of the valve 100 is very large. If the diameter of the valve 100 is, for example, 300 mm, its weight reaches about 100 kg. And the height H of the valve | bulb 100 and the space | interval S between each water supply pipe 110a, 100b are substantially the same. For this reason, it is not easy for an operator to hold the valve 100 horizontally and push it into the gap between the water supply pipes 110a and 110b. This imposes a heavy work burden on the operator and also puts the valve to a predetermined position. It took a long working time to complete 100 sets. For example, in the case of the valve 100 having a weight of 80 kg, it takes about 1 hour and 30 minutes from the time when the valve 100 is hung on the crane until the valve 100 is pushed into the gap between the water supply pipes 110a and 110b to complete the setting. It was.
[0007]
Further, when the worker holds the valve 100 suspended by the crane and pushes it into the gap between the water supply pipes 111a and 111b, not only does it impose a heavy work burden on the worker, but also the wire that suspends the valve 100. There was also a risk that 210 would come off the anchor 200 and the valve 100 would fall.
[0008]
As described above, according to the conventional method described with reference to FIG. 12, a large work load is imposed on the operator, and it takes a long time to complete the setting of the valve 100 to a predetermined position. There is a problem to be solved that the safety of work is not ensured because there is a danger that the suspended heavy valve 100 will drop.
[0009]
[Means for Solving the Problems]
Accordingly, the present invention has been made to solve the above problems. To this end, the present invention provides a table having at least one pin provided on a chain clamp and fitted with at least one pin receiver for tightly wrapping the chain around an object to be bound such as a water supply pipe. It was supported by a jack base with a lifting function.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
One embodiment of the present invention will be described with reference to FIG. Here, FIG. 1 is a perspective view showing the configuration of the heavy load set support according to the present embodiment.
[0011]
In FIG. 1, reference numeral 10 denotes a chain clamp for tightly winding the chain 11 around a rod-like body or a cylindrical body. One end of the chain 11 is connected to one end of a screw rod (not shown) disposed in a clamp portion 12 that firmly tightens the chain 11, and a rod-like handle 14 is attached to the other end of the screw rod. It has been.
[0012]
The other end of the chain 11 is free, and the chain 11 is fastened by hooking an appropriate position of the chain 11 to the clamp portion 12 according to the thickness of the fastened object around which the chain 11 is wound. Wrapped around things. The wound chain 11 is tightly wound around the object to be bound by rotating the handle 14 and pulling the chain 11 connected to the screw rod.
[0013]
A cylindrical pin 13 is erected on the upper surface of the clamp portion 12 of such a chain clamp 10.
[0014]
Reference numeral 20 denotes a rectangular table for placing and supporting a heavy object such as a valve attached to the water supply pipe. As shown in FIG. 2, which is a cross-sectional view taken along the line AA, the table 20 has two plate-shaped metal reinforcing members 23 a and 23 b on the lower surface of the metal plate formed in a U-shaped cross section. It is fixed so as to ensure strength against weight. The metal used here is preferably a hard metal such as iron. In addition, when a resin coating is applied to the upper surface of the table 20, it is possible to easily slide a heavy object on the table 20 and to prevent the bottom surface of the heavy object from being damaged.
[0015]
In FIG. 1, a cylindrical pin receiver 21 is placed on the side wall of one end of the table 20 so that the upper end thereof is not positioned above the upper surface of the table 20 as shown in FIG. 3 (partial sectional view). It is fixed to. The pin receiver 21 is fitted to a pin 13 erected on the clamp portion 12 of the chain clamp 10 (FIG. 1), whereby the chain clamp 10 and the table 20 are connected.
[0016]
In FIG. 1, the table 20 is supported by being fixed to the upper end of a screw rod 31 of a jack base 30 whose other end is moved up and down a workpiece or the like. The screw rod 31 moves up and down by rotating a handle 33 attached to a nut 32 screwed into the screw rod 31.
[0017]
Note that 22a and 22b are provided on both side surfaces of the table 20 to prevent the heavy object from accidentally falling from the table 20 when the heavy object placed on the table 20 is moved to the set position. It is a metal fall prevention plate fixed to the upper end. The lengths of the fall prevention plates 22a and 22b are approximately one third of the length of the table 20, and are partially formed in an L-shaped cross section so as to protrude from the end of the table 20 with the pin receiver 21 interposed therebetween. ing.
[0018]
Next, a method of using the heavy-weight set support configured as described above will be described with reference to FIGS. 4 and 5. Here, FIG. 4 and FIG. 5 show the case where valves such as a water fall prevention valve and a check valve are attached to the water supply pipe disposed in the vehicle tunnel, as described with reference to FIG.
[0019]
First, as shown in FIG. 4A, the chain 11 of the chain clamp 10 is wound around the upper end portion of the lower water supply pipe 110b, and then the handle 14 is rotated to tighten the chain 11 firmly. At this time, the position where the chain 11 is wound is set so that the height position of the joining surface 112b of the flange 111b matches the height position of the upper surface of the table 20.
[0020]
Next, as shown in FIG. 4 (b), the pin receiver 21 fixed to the end of the table 20 is fitted to the pin 13 (FIGS. 1 and 2) of the chain clamp 10 so that the chain clamp 10 The table 20 is connected to the table. If both are connected, the handle 33 of the jack base 30 is rotated, and the screw rod 31 is moved up and down to adjust the height so that the upper surface of the table 20 is horizontal.
[0021]
When the height is adjusted, as shown in FIG. 5A, the valve 100 suspended by the crane anchor 200 is lowered via the wire 210 and placed on the table 20, and the wire 210 is moved. Remove from valve 100.
[0022]
Therefore, as shown in FIG. 5B, on the table 20, the valve 100 is pushed and moved toward the water supply pipes 110a and 110b, and the valve 100 is set between the flanges 111a and 111b of both water supply pipes 110a and 110b. . If the valve 100 is set at the correct position, then the flanges 111a and 111b of the water supply pipes 110a and 110b and the valve 100 are joined using a predetermined member.
[0023]
According to the above method, the operator does not need to hold and set the valve 100 suspended by the crane to be horizontal. It is only necessary to push the valve 100 placed on the table 20. According to the experiment conducted by the inventor of the present application, in the case of the valve 100 having a weight of 80 kg, after setting the support according to the present invention, the valve 100 is hung by a crane and the setting between the water supply pipes 110a and 110b is completed. It takes about 20 minutes. In other words, the working time can be reduced to one-fourth or less of the conventional method.
[0024]
In addition, the operator does not need to hold and set the valve 100 suspended by the crane so as to be horizontal, so that a large work load is not imposed on the operator.
[0025]
FIG. 1 shows a case where one pin 13 is provided on the chain clamp 10 and one pin receiver 21 is provided on the table 20. However, a plurality of pins 13 may be provided on the chain clamp 10 at a predetermined interval, and a plurality of pin receivers 21 fitted to these may be provided on the table 20. If comprised in this way, the rocking | fluctuation which arises when the valve | bulb 100 is mounted on the table 20 and moved can be suppressed.
[0026]
Further, as shown in FIG. 6, a screw groove 16 may be provided in, for example, a lower half portion of a pin 15 erected on the clamp portion 12 of the chain clamp 10, and a nut 17 to be screwed to the screw groove 16 may be disposed. . Then, even if the position of the chain clamp 10 fixed to the water supply pipe 110b is inappropriate, by rotating the nut 17, the height position of the table 20 is finely adjusted, and the water supply pipe 110b The height position of the joint surface 112b of the flange 111b and the height position of the upper surface of the table 20 can be matched.
[0027]
Moreover, the ground clearance of the water supply pipe 110b which fixes the chain clamp 10 is various and is not necessarily the same. In order to deal with such a case, as shown in FIG. 7, a large number of circular holes 35 are formed, and an extension pipe 34 connected to the outer cylinder 36 by a pin 37 penetrating the circular hole 35 is provided. You may make it use the jack base 30B which can adjust length freely.
[0028]
FIG. 8 is a side view showing another embodiment of the present invention, and the same components as those in FIG. 1 will be described with the same reference numerals.
[0029]
In FIG. 8, the differences from the embodiment shown in FIG. 1 will be described. In this embodiment, the jack base 30B whose length can be freely adjusted by the extension pipe 34 shown in FIG. 7 is used, and the upper end of the screw rod 31 is turnable via the support shaft 38. It is connected to the end of 20. The lower end of the outer cylinder 36 is connected to the chain clamp 10 </ b> B via a support shaft 39 so as to be rotatable. Other configurations are the same as those of the embodiment shown in FIG.
[0030]
If constituted in this way, as shown in Drawing 9 (a), when ground clearance HG of lower water supply pipe 110b is low, conversely, as shown in Drawing 9 (b), when ground clearance HG is high Can be easily dealt with by fixing the chain clamp 10B connected to the jack base 30B to the water supply pipe 110b. In addition, since the jack base 30B can be folded, there is an advantage that the convenience of transporting the support is obtained.
[0031]
Although FIG. 8 shows the jack base 30B whose length can be freely adjusted by the extension pipe 34, the jack base 30 (FIG. 1) without the extension pipe 34 may be used. .
[0032]
Also in this embodiment, in order to suppress the swing of the table 20 on which the valve 100 is placed, a plurality of pins 13 are provided on the chain clamp 10 connected to the table 20, and a plurality of pin receivers 21 are provided on the table 20. May be provided. Further, for fine adjustment of the height position of the table 20, a screw groove 16 may be provided in the pin 13 (FIG. 6), and a nut 17 to be screwed into the screw groove 16 may be provided.
[0033]
FIG. 10 shows a configuration of a main part of still another embodiment of the present invention. Here, FIG. 10 (a) is a side view showing the configuration of the main part, and FIG. 10 (b) is a plan view. For convenience of explanation, a state where the table 20 is separated is shown. In addition, the same code | symbol is attached | subjected about the component same as the component in FIG.
[0034]
10A differs from the embodiment shown in FIG. 1 in the configuration of the chain clamp 40. FIG. That is, in the present embodiment, two metal contact plates 41a and 41b having V-shaped notches shown in FIG. 10 (b) that are in contact with the object to be bound are vertically separated by two steps. These are connected by a connecting plate 42 having a V-shaped cross section.
[0035]
A screw rod 44 for pulling the chain 11 to which the handle 14 is connected is attached to one face wall of the connecting plate 42, and a hook 45 (see FIG. 5) for hanging the chain 11 is attached to the other face wall. 10 (b)) is attached.
[0036]
As shown in FIG. 10B, two pins 43a and 43b are erected at a predetermined interval on the upper surface of the upper contact plate 41a, and two pin receivers 24a to be fitted therewith. , 24 b are fixed to the end of the table 20.
[0037]
As shown in FIG. 10 (a), a handle 45 is attached between the two contact plates 41a and 41b so that the operator can easily hold the chain clamp 40 when setting it. It has been. Other configurations are the same as those of the embodiment shown in FIG.
[0038]
If the chain clamp 40 configured as described above is used, the two abutment plates 41a and 41b abut against the peripheral wall of the water supply pipe 110b at a predetermined interval, and therefore the table on which the valve 100 is placed. The effect which suppresses 20 rocking | fluctuation can be acquired.
[0039]
In FIG. 10, the case where the chain clamp 40 is provided with two pins 43a and 43b and the table 20 is provided with two pin receivers 24a and 24b is illustrated. However, only one pin and one pin receiver are provided. There may be.
[0040]
Also in the present embodiment, for fine adjustment of the height position of the table 20, the screw grooves 16 (FIG. 6) are provided in the pins 43a and 43b, and the nuts 17 that are screwed to the pins are provided. Good. Further, a jack base 30B whose length can be freely adjusted by the extension pipe 34 (FIG. 7) is used, and the upper end of the screw rod 31 is rotatably connected to the end of the table 20 via the support shaft 38. In addition, the lower end of the outer cylinder 36 may be connected to the chain clamp 10 </ b> B via the support shaft 39 so as to be rotatable.
[0041]
As described above, each embodiment of the present invention has been described. In order to prevent the valve 100 that is moved on the table 20 from stopping properly at the set position, or to prevent the valve 100 from being pushed too much and dropped. In the embodiment, as shown in FIG. 11 ((a) is a side view, (b) is a plan view), a stopper 51 made of, for example, a bar formed in a U shape and capable of overhanging, What is necessary is just to make it attach to the table 20. FIG.
[0042]
【The invention's effect】
As is clear from the above description, according to the present invention, particularly when it is necessary to move a heavy object in a horizontal direction and set the heavy object in a gap portion without an extra space, a simple configuration, It is possible to significantly shorten the time for setting a heavy object and improve work efficiency.
[0043]
In addition, it is possible to reduce the work burden on the worker and to avoid the risk of accidentally dropping heavy objects. Therefore, the effect brought about by the present invention is extremely large in practical use.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a partial cross-sectional view showing a configuration of the pin receiver shown in FIG. 1;
FIG. 4 is an explanatory diagram for explaining a method of using the weight set support shown in FIG. 1;
FIG. 5 is an explanatory diagram for explaining a method of using the weight set support shown in FIG. 1 together with FIG. 4;
6 is a configuration diagram showing a configuration for finely adjusting the height position of the table shown in FIG. 1; FIG.
7 is a front view showing another configuration example of the jack base shown in FIG. 1; FIG.
FIG. 8 is a side view showing another embodiment of the present invention.
FIG. 9 is an explanatory diagram for explaining how to use the weight set support shown in FIG. 8;
FIG. 10 is a configuration diagram showing still another embodiment of the present invention.
11 is a configuration diagram showing a configuration of a stopper that can be applied to the heavy article set support shown in FIGS. 1, 8, and 10. FIG.
FIG. 12 is an explanatory diagram for explaining an example of a conventional method of setting a heavy object.
[Explanation of symbols]
10, 10B Chain clamp 11 Chain 12 Clamp part 13 Pin 14 Handle 15 Pin 16 Thread groove 17 Nut 20 Table 21 Pin holder 22a, 22b Fall prevention plate 23a, 23b Reinforcement member 24a, 24b Pin holder 30, 30B Jack base 31 Screw rod 32 Nut 33 Handle 34 Extension pipe 35 Round hole 36 Outer cylinder 37 Pin 38, 39 Support shaft 40 Chain clamp 41a, 41b Contact plate 42 Connection plate 43a, 43b Pin 44 Screw rod 45 Stopper 51 Stopper 100 Valve 101a, 101b Flange part 102a, 102b Joining surface 110a, 110b Water supply pipe 111a, 111b Flange 112a, 112b Joining surface 200 Anchor 210 Wire

Claims (6)

Chain clamping means (10) having at least one pin (13, 41a, 41b) erected for tightly winding the chain (11) around the object (110b);
Table means (20) for placing and supporting a heavy article (100), wherein at least one pin receiver (21, 23a, 23b) fitted to the at least one pin is fixed to one end side. )When,
A heavy load set support tool comprising at least one table support means (30) having a lifting function for supporting the table. The weight set support according to claim 1, wherein the at least one pin has a thread groove (16), and a nut (17) screwed into the thread groove is arranged. The heavy-weight-set support tool according to claim 1 or 2, wherein the table support means has an extension pipe (34) and can be freely adjusted in length. The at least one table support means has an upper end connected to the table means so as to be rotatable via a first support shaft ( 38 ), and a lower end thereof rotated via a second support shaft ( 39 ). 4. A heavy load set support tool according to claim 1, 2 or 3, which is freely connected to the second chain clamp means (10B). The heavy load set according to claim 1, 2, 3, or 4, wherein the chain clamp means has at least two contact plates (41a, 41b) arranged on the upper and lower sides to contact an object to be bound. Support tool. 6. A heavy load set support tool according to claim 1, wherein said table means has stopper means (51) for stopping said heavy object moved on said table means at a predetermined position. .

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