JPS597262Y2 - fabric repair tools - Google Patents

Description

[Detailed description of the invention] This invention is a fabric repair tool suitable for repairing torn areas in the fabric of container bags for transporting mineral products, small metal products, etc. made of fabric. Pertains to.

Transport bags made of natural or chemical fiber fabrics or fabrics coated with rubber or other materials have come to be widely used in place of conventional containers such as baskets and drums. During repeated use, the forks of a forklift can get stuck and cause holes in the fabric, causing damage.

In this case, the torn part is repaired by stitching it together with thread, applying repair fabric, or baking it.
In general, fabrics have elasticity and tend to stretch slightly when pulled, so even if they are sewn together with thread at the tear point, tensile force acts on the seams during reuse, causing them to tear and not last long.

In addition, since the parts that are pasted or baked have double layers, they are less likely to stretch than the surrounding unrepaired parts, so the areas around the pasted or baked parts are easily pulled and damaged during repeated use.

Moreover, since repair requires skill and a considerable amount of time, there are many problems such as the need to prepare a large number of replacement bags.

The purpose of this invention is to provide a fabric repair tool that solves the above-mentioned problems, and is a repair tool for repairing torn areas of fabric. A stacked board with multiple slits cut radially outwards leaving the center part, claws to prevent fabric from slipping on the lower surface of the periphery, and bolt holes in the center part. and a bottom plate on which the stacked boards are placed with a piece of cloth in between, which has a bolt hole in the center, and a nut that is passed through the bolt hole of the stacked board placed on the bottom base and the bolt hole of the bottom plate. A through bolt is used to fasten the stacked plate and the bottom plate, and the torn part of the fabric is sandwiched between the stacked plate and the bottom plate, and the through bolt is used to tighten the stacked plate to the bottom plate, and the fabric is tightened around the stacked plate. This invention relates to a fabric repair tool that is characterized by being held while extending outward around a torn part.

Next, embodiments shown in the accompanying drawings will be described.

The stacked plate 1 has a flat peripheral portion 11, and has claws 2 provided on the lower surface to prevent the fabric from slipping, which will be described later.

The pawl may be provided circumferentially or, as shown in FIG. 3, may be shaped as a pointed projection 2a, for example by pressing.

Following the periphery 11, the stack gradually becomes higher toward the center 13 of the stacked board 1, and has a shape similar to an upside-down plate with the middle 12 and center 13, leaving the center 13 behind. A plurality of slits 3 are cut radially outward from the middle part 12 and through the peripheral part 11.

Further, a bolt hole 4 is provided in the central portion 13.

A bottom plate 5 on which the stacked plate 1 is placed has a bolt hole 6 at a central position opposite to the bolt hole 4 of the stacked plate 1.

Although it is convenient to fix a nut 7 in the bolt hole 6 as shown in the figure, it may be provided separately.

Bolt 8 passed through bolt hole 4 on the stacked plate and bolt hole on the bottom plate
When the nut is screwed in and tightened, the slit 3 of the stacked plate 1 opens and the middle part 12 and peripheral part 11 of the stacked plate 1 gradually become flat along the bottom plate 5 and extend outward. .

The bottom plate 6 is made sufficiently large so that the peripheral part 11 will not come off the bottom plate 6 even if the stacked plate 1 becomes flat.

The bottom plate 6 may be in the shape of a flat plate, or as shown in FIG.
It becomes easier to crimp the entire surface with a.

Because of this structure, for example, when trying to repair a torn place 91 in the fabric 9 of a transport bag, place the bottom plate 5 under the fabric 9 so that the bolt holes 6 of the bottom plate 5 are at the torn place 91. Place the stacking board 1 on top of the fabric 9, and insert the bolts 8 into the bolt holes 4 of the stacking board 1 and the bolt holes 6 of the bottom plate.
Through it, screw in the nut 7 to the tip of the stacked plate 1.
The claws 2 on the lower surface of the peripheral part 11 are embedded in the fabric 9, and as the peripheral part 11 stretches in all directions, the torn part 91 of the fabric 9 is expanded, and the stretch of the fabric is also added to this. The fabric is also stretched in all directions.

If the bolts 8 are tightened strongly, the stacked plate 1 will become almost flat, and the fabric 9 will be stretched around the circumference by the peripheral part 11 of the stacked plate 1 and held between it and the bottom plate 5. The fabric becomes loose.

If the peripheral part 11 of the stacked plate 1 is strongly pressed against the bottom plate 5 and strongly supports the fabric 9, the intermediate part 12 of the stacked plate is not necessarily
Even if the central portion 13 is not parallel to the bottom plate 5, that is, the intermediate and central portions of the stacked plates are not pressed strongly against the bottom plate and may float to some extent.

The transport bag is then reused with the torn and perforated portion of the fabric sandwiched between the stacking plate and the bottom plate.

Since the fabric 9 is held between the stacking plate 1 and the bottom plate 5 while being pulled in all directions by the claws 2 of the stacking plate 1, the fabric around it is sagging, so it is difficult to repair the area during use. Even if a tensile force is applied, it is absorbed by the surrounding slack, and no strong force is applied to the repaired area.

As a result, damage is reduced, the life of the transport bag is extended, and repair is easy.

Next, the results of a test using this product will be explained.

Thickness: 1mm, made of nylon yarn fabric coated with a rubber layer.
Crushed stones approximately 2 mm in size were placed in a transportation bag 10 made of cloth, hung by the fork F of a forklift as shown in Figure 7, and unloaded onto a truck. Approximately 50 x 50 mm to 70
40 bags each with an L-shaped tear measuring 70 mm in length or a linear tear with a length of about 60 to 80 mm were repaired using the following three methods, totaling 1 bag.
We made 20 bags of repaired items.

(1) Stitch the tear with folding thread, (2) Paste a repair cloth made of the same material as the bag over the tear with adhesive, (3) Repair tool of the present invention, round bottom plate with a diameter of 15 Q mm, made of steel plate. Repair it with.

These test items were reused for transporting crushed stone approximately 2 mm in size,
We inspected the bags for damage every 10 times and removed those that were unusable.The results of the inspection after 50 uses (a forklift was used for loading and unloading onto a truck) were as follows, expressed in terms of the number of bags.

The weight of the contents of one bag was 1 ton.

(1) Many of the items sewn together with thread became unusable after repeated use, and (2) many items that were attached with adhesive peeled off at the beginning. It was clearly recognized that the durability of the items repaired using the repair tool of the present invention (3) was high, except for the items that could no longer be used due to poor tightening of bolts or improper installation of the repair tool.

By using this repair tool, the fabric will be stretched by approximately 5mm,
There was some sagging around the stacked board, but if it had stretched to this extent and there was sagging around the stacked board, even if a tensile force was applied to the repaired area when an item was placed in the bag, it would be able to be absorbed sufficiently and the unreasonable force would be avoided. It is thought that this is because it does not affect the repaired area.

As explained above, the repair tool of the present invention not only extends the service life significantly by simply holding the torn part of the fabric between the stacked plate and the bottom plate, but also makes the repair work extremely easy and saves money including the cost of the tool. In addition, the repair cost is only about 1,000 yen compared to the conventional method, and the practical effects are that there is no need to keep extra bags in reserve because the repair period is short, and there is less chance of the contents dissipating due to damage to the bag during transportation. Extremely large.

In the above explanation, a repair tool made of a steel plate was explained, but it will be easily understood that a repair tool made of a durable material such as plastic or hard rubber can have the same effect.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view showing an embodiment of the present invention, Fig. 2 is a bottom view of the stacked plate, Fig. 3 is a bottom view of the main parts of the stacked plate, showing another example of the claw of the stacked plate, and Fig. 4 The figure is a vertical cross-sectional view showing the usage state (when installed) of the embodiment of the present invention, Figure 5 is a vertical cross-sectional view showing the same installed state, and Figure 6 is the center showing the skeleton of another embodiment of the present invention. The cross-sectional end view and FIG. 7 are perspective views showing an example of the usage state of the transport bag. 1...Stacked plate, 11...Peripheral part, 12
...Middle part, 13...Central part, 2,2
a...Claw, 3...Slit, 4...
...Bolt hole, 5, 5a...Bottom plate, 6...
...Through hole, 7...Nut, 8...
Bolt, 9...Fabric, 91...Torn part, 10...Transportation bag.

Claims (1)

[Scope of utility model registration request] A repair tool for repairing torn parts of fabric, which has a flat periphery that gradually becomes mid-height toward the center, and has multiple slits cut radially outwards leaving the center. There is a stacked plate on the lower surface of the periphery that has claws to prevent the fabric from slipping and a bolt hole in the center, and a bottom plate on which the stacked plate is placed with fabric in between, and has a bolt hole in the center. A through-bolt is inserted through the bolt hole of the stacked plate placed on the bottom plate and the bolt hole of the bottom plate to tighten the stacked plate and the bottom plate. A piece of fabric is sandwiched between a stacking plate and a bottom plate, the stacking plate is fastened to the bottom plate with a through bolt, and the fabric is held while being stretched outward around the torn part of the fabric at the periphery of the stacking plate. repair tools.