JP7166157B2 - protective sheet - Google Patents

Description

TECHNICAL FIELD The present invention relates to a protective sheet for covering the edge of a product made of processed metal material.

Conventionally, products processed from metal materials are placed in a product storage area or the like in a processing factory. The products are piled up in a product storage area until they are shipped, and are carried out one by one and shipped to a construction site or the like by a transportation means such as a truck.

In a site where products are processed, such as a factory, products of the same type are collectively stored in a product storage area. On the other hand, the processed products are newly carried into the product storage area, and the products are carried out for shipment, and carrying-in and carrying-out operations are frequently performed.

Products made of metal materials are, for example, formed by plastically working and bending sheet metal, and include deck plates and the like used as floor materials for buildings. Such products are moved, for example, by a crane installed in a factory and carried in and out. At that time, workers move around the product storage area, move between the products that are arranged in large numbers, unload the products brought in by cranes, and perform slinging work for carrying out.

A product obtained by processing a deck plate metal material is generally rectangular in plan view, and the product may be deformed if another product or a tool collides with the corners of the product. In addition, if the worker collides with the corner of the product, he may be injured. In particular, in the case of products made by processing plate-like metal materials, cut surfaces other than the corners of the products may be sharp, and direct contact with the human body may cause bleeding due to cuts. Therefore, in order to make it easy for the worker to easily identify the area where the product is placed, the worker's attention has been urged by means such as displaying lines on the floor.

Alternatively, according to the protective safety sheet disclosed in Patent Document 1, by attaching the protective safety sheet to the building member by magnetic force, it is easy to attach and detach and covers the necessary parts to protect the building member.

Japanese Utility Model Laid-Open No. 6-85861

As in the past, even if measures such as displaying lines on the floor are taken, workers still need to enter the area where the product is placed because it is necessary to carry in and out. . Therefore, there is a problem that it is impossible to eliminate the chances of the worker coming into contact with the corners of the product.

Moreover, even when the protective safety sheet disclosed in Patent Document 1 is used, the amount of products placed in the product storage area constantly fluctuates. Therefore, in order to always protect the corners of a plurality of stacked products, there is a problem that it is necessary to use different types of protective safety sheets depending on the height of the stacked products.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems, and to provide a protective sheet capable of protecting products and workers even when the stacking height of products fluctuates.

A protective sheet according to the present invention is a protective sheet for covering an end portion of a product formed by processing a steel plate, and includes a flexible rectangular sheet and a magnetic sheet having magnetic force. A sheet is fixed to one end of the sheet, and the sheet is formed with a notch from the other end facing the one end toward the one end .

According to the protective sheet of the present invention, since the flexible sheet can be attached to the steel product by the magnetic sheet, the protective sheet can be easily attached to the edge of the product. In addition, since the protective sheet is fixed to the product by the magnetic force of the magnetic sheet, the fixed position can be easily moved. is easy to move. Therefore, since the protective sheet can be easily attached and detached and can cover necessary parts of the products, it is possible to protect the products and workers even if the stacking height of the products fluctuates.

1A and 1B are a plan view and a side view of a protective sheet 100 according to Embodiment 1. FIG. FIG. 2 is a perspective view showing a usage example of the protective sheet 100 according to Embodiment 1; Fig. 2 is a view of the floor material 50 to which the protective sheet 100 according to Embodiment 1 is attached, viewed from the end surface 51 side; Fig. 2 is a side view of the floor material 50 to which the protective sheet 100 according to Embodiment 1 is attached; 1 is a plan view of a flooring 50 to which a protective sheet 100 according to Embodiment 1 is attached; FIG. It is the figure which looked at the flooring 50 which attached the protective sheet 200 which concerns on Embodiment 2 from the end surface 51 side.

Embodiments will be described below with reference to the drawings. It should be noted that the present invention is not limited by the embodiments described below. Each figure is shown schematically, and the relative size, plate thickness, etc. of each member are not limited to the dimensions shown in the figure. Also, in the following drawings, the size relationship of each component may differ from the actual size. In addition, in the figures, when no suffix (a, b, etc.) is attached to each part, the suffixed symbols are collectively referred to.

Embodiment 1.
FIG. 1 is a plan view and a side view of a protective sheet 100 according to Embodiment 1. FIG. 1(a) is a plan view of the protective sheet 100, and FIG. 1(b) is a side view of the protective sheet 100. FIG. The protective sheet 100 is for protecting products placed in a factory, material storage area, carrier truck bed, or the like.

For example, the product is formed by forming a steel plate by plastic working, and is formed by forming a continuous steel strip into a belt shape by means of roll forming or the like, and cutting it to a predetermined length. The end face of such a product is a cut surface, and the edge between the plate surface and the cut surface is sharp, and burrs, burrs, etc. may occur. Therefore, if the end face of the product is touched by a human body, it may cause a cut, and if clothes or the like come into contact with it, it may be caught and broken.

In many cases, a product is substantially rectangular in plan view, but if a person collides with a corner of the product in plan view, a person may be injured. Moreover, when an object collides with the product, the object may be damaged, or the corner of the product may be bent. The protective sheet 100 covers the edges of the product so that the human body does not unintentionally touch the edges and corners of the stored product, and the surrounding objects do not touch the edge of the product. to prevent direct collision with

As shown in FIG. 1 , the protective sheet 100 includes a rectangular sheet 10 and a magnetic sheet 20 fixed to the surface of one end of the sheet 10 . The sheet 10 is a flexible transparent resin sheet. The sheet 10 is made of polyvinyl chloride having a thickness of about 0.5 mm to 2 mm, for example. However, the thickness and material of the sheet 10 are not limited to these, and may be changed as appropriate according to the strength required for the protective sheet 100 and the ease of deformation.

A magnetic force sheet 20 is fixed to one end of the sheet 10 . The magnetic force sheet 20 is fixed to the surface of the rectangular sheet 10 in plan view. The magnetic sheet 20 and the sheet 10 are fixed by fixing means such as double-sided adhesive tape, adhesive, staples, or the like.

The magnetic sheet 20 has a flexible sheet shape and is made of a magnetic material. For example, the magnetic force sheet 20 is made of a resin material containing magnetic metal powder. The magnetic force of the magnetic sheet 20 can be appropriately set according to the adsorption force to the product and the weight of the sheet 10 . The magnetic force should be set so that the protective sheet 100 does not easily shift when the protective sheet 100 is attached to the product.

A cut 13 is formed in the sheet 10 from the end opposite to the one end to which the magnetic sheet 20 is fixed (hereinafter referred to as the other end). The notch 13 is provided along the longitudinal direction of the sheet 10 at the central portion in the width direction of the sheet 10, and is provided to such an extent that it does not reach the area where the magnetic force sheet 20 is fixed.

In Embodiment 1, only one cut 13 is provided in the central portion of the sheet 10 in the width direction, but a plurality of cuts 13 may be provided.

(Action of protective sheet 100 in product storage area)
FIG. 2 is a perspective view showing a usage example of the protective sheet 100 according to Embodiment 1. FIG. FIG. 2 shows a state in which a protective sheet 100 is attached to the edge of a flooring material 50 which is a product placed in a product storage area of a factory. The floor material 50 is formed by rolling a galvanized steel sheet having a thickness of 0.6 mm to 2.3 mm, for example, and is cut into a predetermined length. The longitudinal dimension of the floor material 50 is appropriately set according to product specifications. Moreover, the end surface 51 of the floor material 50 is a cut surface, and the edge between the plate surface and the cut surface is sharp, and burrs, burrs, and the like may occur. In addition, the floor material 50 is rectangular in plan view, and if a person collides with the corners 52 of the product in plan view, a person may be injured. Also, an object that collides with the corner portion 52 or the end surface 51 may be damaged. Furthermore, when a heavy and hard object collides with the product, the corner portion 52 of the product may be bent.

FIG. 3 is a view of the floor material 50 to which the protective sheet 100 according to Embodiment 1 is attached, viewed from the end surface 51 side. FIG. 4 is a side view of the floor material 50 to which the protective sheet 100 according to Embodiment 1 is attached. FIG. 5 is a plan view of flooring 50 to which protective sheet 100 according to Embodiment 1 is attached. The floor materials 50 are stacked and stored. Flooring material bundles 5a to 5d are formed by stacking a plurality of flooring materials 50, and the flooring material bundles 5a to 5d are stacked and stored in a product storage area or the like. The lowest floor material bundle 5d is placed on sleepers 4 placed on the floor surface 9 of the product storage area. Sleepers 4 are also arranged between the floor material bundles 5a to 5d. Each of the flooring material bundles 5a to 5d is, for example, a bundle of flooring materials 50 grouped together for each of the same specifications or the same work area and the same construction site (construction slab), and is usually carried out collectively when shipped from the product storage area. be done. Unloading is performed by a crane installed in the product storage area. Therefore, when unloading, each of the floor material bundles 5a to 5d is slinged by passing a wire rope under it. The sleeper 4 is placed to secure a space for passing the wire rope under the floor material bundles 5a to 5d during the slinging work.

In the product storage area, a worker 70 passes through the product storage area in order to perform slinging work on the floor material bundles 5a to 5d. In the product storage area, many products are stored side by side like the floor material bundles 5a to 5d. Therefore, the worker 70 walks between many products to the product to be carried out. At this time, if the protective sheet 100 is not attached to the ends of the floor material bundles 5a to 5d, the operator 70 may touch the end surfaces 51 of the floor material bundles 5a to 5d, or possibly collide with each other. In the worst case, the sharp portion of the end face 51 causes injury.

As shown in FIGS. 3 and 5, the width of the protective sheets 100 attached to the ends of the bundles of flooring materials 5a to 5d is larger than the width of the flooring material 50 as a product. In Embodiment 1, the width of the floor material 50 is 600 mm, while the width of the protective sheet 100 is set to 750 mm. Therefore, the protective sheet 100 covers the corners 52 of the flooring 50 when viewed from the end surface 51 side of the flooring 50 or when viewed from above, preventing the operator 70 from unintentionally touching the corners 52 . There is no Moreover, the right side portion 11 and the left side portion 12 of the sheet 10 of the protective sheet 100 cover the entire end surface 51 of the flooring 50 . Therefore, the operator 70 does not touch the edge of the end surface 51 unintentionally. Since the protective sheet 100 is hung on the edge, the operator 70 is safe because the edge is not directly touched. The width of the protective sheet 100 can be appropriately set according to the width of the product to be attached.

Further, as shown in FIGS. 3 and 5, the slip 3 is attached to the flooring material 50 arranged at the top of each of the flooring material bundles 5a to 5d. The slip 3 describes, for example, the shipping destination and product specifications. Therefore, the worker 70 walks along the passage of the product storage area, confirms the products placed in the product storage area, confirms the shipping destination, and the like. The slip 3 is desirably attached at a position where the worker 70 can easily check it. In particular, when a long product like the floor material 50 is stored in the product storage area, the floor material 50 is arranged with the end surface 51 facing the passage side. Therefore, if the slip 3 is attached to the end of the flooring material 50 , it is easier to see from the passageway, which is convenient for managing many flooring materials 50 . As shown in FIG. 4, the worker 70 checks the slip 3 from the passage facing the edge of the floor material 50 .

The protective sheet 100 is attached to the floor material 50 so as to cover the edge of the floor material 50, but since the sheet 10 is made of a transparent material, the slip 3 attached to the floor material 50 is not visible. is easy to see. In addition, the sheet 10 of the protective sheet 100 is formed with a notch 13 in the center and is divided into a right side portion 11 and a left side portion 12, so that the slip 3 can be confirmed by turning over the sheet 10. is also easy. In other words, operator 70 does not need to turn up the entire sheet 10 when turning up protective sheet 100, and in the first embodiment, only right side portion 11 of sheet 10 needs to be lifted up. Further, even when the operator 70 needs to touch the slip 3, such as when peeling off the slip 3, the worker 70 can insert his/her hand through the notch 13 of the sheet 10 and touch the slip 3. - 特許庁As described above, the protection sheet 100 ensures the safety of the worker 70 and does not hinder the work of checking, attaching, or peeling off the slip 3 .

As shown in FIGS. 3 and 4, the protective sheet 100 attaches the magnetic sheets 20 to the upper surfaces of the piled floor material bundles 5a to 5d, and the lower end of the sheet 10 is the floor material bundle 5d which is the lowest. It is fixed so that it is positioned below the By fixing the protective sheet 100 to the product in this way, the safety of the worker 70 can be ensured, and the end surfaces 51 and the corners 52 of the floor material 50 can also be protected. Also, the magnetic force sheet 20 can be easily attached and removed. Therefore, it is easy to adjust so that the lower end of the sheet 10 of the protective sheet 100 comes to an appropriate position. In addition, even if the floor material bundle 5a is carried out or another floor material bundle is brought in and the stacking height of the products is changed, the protective sheet 100 adjusts the mounting position of the magnetic sheet 20. The position can be adjusted so that the sheet 10 reliably covers the end surface 51 and the corner portion 52 of the floor material 50 . That is, the protective sheet 100 reliably covers the ends of the products and protects the product and the worker 70 even in a situation such as a product storage area where the height of the stacked products is not constant. I can plan.

Specifically, in Embodiment 1, the stacking height of the products is about 1200 mm, while the length of the protective sheet 100 in the longitudinal direction is set to 1400 mm. In addition, the magnetic force sheet 20 is set to have a length of 200 mm along the longitudinal direction of the protective sheet 100 . However, the dimensions of each part of this protective sheet 100 are an example, and are not limited to these dimensions. The length of the protective sheet 100 in the longitudinal direction can be appropriately set according to the stacking height of products and workability.

Although the use of the protective sheet 100 in a product storage area such as a factory has been described above, the place where the protective sheet 100 is used is not limited to a product storage area such as a factory. For example, it can be used when the product is temporarily placed at a construction site, or when it is placed on a loading platform such as a truck, and the protective sheet 100 protects the product and the worker 70. be able to.

(Effect of Embodiment 1)
A protective sheet 100 according to Embodiment 1 is a protective sheet 100 that covers the end of a product formed by processing a steel plate, and includes a flexible rectangular sheet 10 and a magnetic sheet 20 that has magnetic force. , provided. The magnetic force sheet 20 is fixed to the surface of the sheet 10 and fixed to one end of the sheet 10 .
With this configuration, the protective sheet 100 can cover the edge of the product by following the shape of the product, and the magnetic sheet 20 can be attached and fixed to the product. The ends can be covered with easy work. In addition, since the position of the protective sheet 100 can be adjusted by fixing the position where the magnetic sheet 20 is attached to the product, the protective sheet 100 can be arranged at an appropriate position even if the stacking height of the products fluctuates. be able to. Therefore, it is possible to reliably protect the worker 70 and the edge of the product when storing the product.

Also, the sheet 10 is formed with a cut 13 from the other end toward the one end. Furthermore, the cut 13 is formed along the longitudinal direction of the sheet 10 and formed in the central portion of the width of the sheet 10 .
With this configuration, since the protective sheet 100 has the divided sheet 10, the sheet 10 can easily conform to the shape of the edge of the product. If the sheet 10 is not divided, the sheet 10 is a single rectangular sheet, so that the edges of simple shapes (eg, cubes, etc.) can be covered. However, for example, when covering the end of a product with a complex shape having uneven shapes like the flooring material 50 of Embodiment 1, the sheet 10 partially floats, and the corners 52 of the flooring material 50 extend over the entire upper and lower areas. It is conceivable that it cannot be covered all the way. When the sheet 10 is divided, for example, in the protective sheet 100 according to Embodiment 1, since the distance between the right side portion 11 and the left side portion 12 is variable by the cut 13, the right side portion 11 and the left side portion 12 are separated. Easy to follow the shape of the product. In particular, in the case of a product having a plurality of projections 53, such as the flooring material 50, the sheet 10 is also distorted because the magnetic sheet 20 is attached along the shape of the product. However, the right side portion 11 and the left side portion 12 are laterally opened by the cut 13 so that the two corners 52 of the floor material 50 can be covered. Therefore, it is possible to protect the worker 70 and the edge of the product.
In addition, since the sheet 10 is divided into the right portion 11 and the left portion 12 by the notch 13 and can be turned up separately, the operator 70 can easily turn up the sheet 10 and the slip attached to the product can be easily removed. It becomes easy to touch 3, and workability improves.

Also, the sheet 10 may have a plurality of cuts 13 .
By providing this configuration, for example, even in a wide product or a product having a complicated shape with more irregularities on the upper surface than the floor material 50, each part of the sheet 10 divided by the plurality of cuts 13 can be , the degree of freedom of arrangement is high, and it is easy to follow the shape of the edge of the product.

Also, the sheet 10 has a rectangular shape whose longitudinal direction is the direction from one end to the other end.
With this configuration, the protective sheet 100 is particularly suitable for covering the end of a product that is long in one direction in a plan view and has a small width in the longitudinal direction when the product is stored. That is, when the stacking height of the products changes, the protective sheet 100 can fix the magnetic sheet 20 to the product by moving the position where the protective sheet 100 is attached along the longitudinal direction of the product. By moving the sticking position, the protective sheet 100 can suspend the sheet 10 from the edge of the product with an appropriate length to reliably cover the edge of the product.

Moreover, the magnetic sheet 20 has flexibility.
With this configuration, even if the top surface of the product has a complicated shape, the magnetic force sheet 20 follows the protective sheet 100 and can be reliably attached to the product.

Also, the sheet 10 is made of a transparent material. With this configuration, the end of the product covered by the protective sheet 100 can be easily seen from the outside, which is advantageous in product management and the like. The sheet 10 is desirably transparent and highly visible inside, but a translucent material or a material that does not transmit light may be used.

The product is a floor material 50 formed by plastically working a belt-shaped steel plate. The protective sheet 100 is convenient for protecting the end of a product that is long and narrow on one side, such as a flooring material 50 applied to a building. The floor materials 50 are placed in alignment in the longitudinal direction, for example, in a product storage area. Since the length of the floor material 50 varies depending on the building to which many products are applied, slips 3 that indicate the shipping destinations and specifications of the products are used when managing the carry-in and carry-out of many products in the product storage area. are placed with The floor materials 50 are arranged side by side along the passage with the ends in the longitudinal direction facing the passage. By attaching the slips 3 to the end portion, the efficiency of confirming the slips 3 of a large number of floor materials 50 is improved. Since the protective sheet 100 covers and protects the ends of the floor materials 50 arranged along the path, it protects the workers 70 and the ends of the product, and prevents the work of confirming the slip 3. There is an advantage that there is no

Embodiment 2.
Protective sheet 200 according to the second embodiment is obtained by adding weights 8 to the ends of sheet 10 of protective sheet 100 according to the first embodiment. It should be noted that in the following embodiments, changes from the first embodiment will be mainly described.

FIG. 6 is a view of the floor material 50 to which the protective sheet 200 according to Embodiment 2 is attached, viewed from the end surface 51 side. The protective sheet 200 has a weight 8 attached to the end of the sheet 10 opposite to the end of the sheet 10 to which the magnetic sheet 20 is fixed. The weights 8 are provided on each of the right side portion 11 and the left side portion 12 of the seat 10 . The weight 8 is fixed to the corner of the sheet 10 . However, the position where the weight 8 is installed is not limited to this. For example, at the lower end portions of the right side portion 11 and the left side portion 12 of the seat 10, they may be provided across the entire width direction, or a plurality of them may be provided in the width direction.

(Effect of Embodiment 2)
Since the protective sheet 200 is provided with the weight 8 , the edge of the sheet 10 is more reliably positioned on the floor surface 9 side when the protective sheet 200 is attached to the floor material 50 . That is, for example, even if the wind blows in the product storage area, the edge of the sheet 10 can be prevented from being lifted, so the protective sheet 200 can more reliably cover the edge of the product. In addition, since the sheet 10 does not easily move when the worker 70 touches the sheet 10 , the worker 70 unintentionally moves the sheet 10 and contacts the end face 51 or the corner 52 of the floor material 50 . can be suppressed.

Note that the weight 8 may have magnetic force. With such a configuration, the weight 8 can be attached to the lower surface of the floor material bundle 5d which is positioned closest to the floor surface 9 among the floor material bundles 5a to 5d. That is, the protective sheet 200 is fixed by magnetic force at both ends in the longitudinal direction. Therefore, it is convenient when it is desired to keep the edges of the product covered with the protective sheet 200 . Also, the shape, position, size, and quantity of the weights 8 may be changed as appropriate.

Although the present invention has been described above based on the embodiments, the present invention is not limited only to the configurations of the above-described embodiments. In particular, the combination of components is not limited only to the combinations in each embodiment, and the components described in other embodiments can be applied to other embodiments. In addition, it should be noted that the gist (technical scope) of the present invention also includes various modifications, applications, and ranges of use made as necessary by those skilled in the art.

3 slip, 4 sleeper, 5a floor material bundle, 5b floor material bundle, 5c floor material bundle, 5d floor material bundle, 8 weight, 9 floor surface, 10 sheet, 11 right portion, 12 left portion, 13 notch, 20 magnetic sheet , 50 floor material, 51 end face, 52 corner, 53 convex, 70 operator, 100 protective sheet, 200 protective sheet.

Claims (9)

A protective sheet covering the end of a product formed by processing a steel plate,
a flexible rectangular sheet;
A magnetic force sheet having magnetic force,
The magnetic sheet is
fixed to one end of the sheet ;
The sheet is
A protective sheet , wherein a notch is formed from the other end facing the one end toward the one end . The sheet is
The protective sheet according to claim 1 , comprising a plurality of said cuts. The notch is
3. The protective sheet according to claim 1 , wherein the protective sheet is formed in the central portion of the width of the sheet. The sheet is
4. The protective sheet according to any one of claims 1 to 3 , wherein the protective sheet has a rectangular shape whose longitudinal direction is the direction from the one end to the other end. The magnetic sheet is
The protective sheet according to any one of claims 1 to 4 , which has flexibility. The sheet is
6. The protective sheet according to any one of claims 1 to 5 , which is made of a transparent material. Said product is
The protective sheet according to any one of claims 1 to 6 , which is a flooring material formed by plastically working a strip-shaped steel plate. The sheet is
The protective sheet according to any one of Claims 1 to 7 , wherein a weight is fixed to the other end opposite to the one end. The weight is
9. The protective sheet according to claim 8 , having magnetic force.

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