JP2012172482A - Connector for floor iron plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for floor iron plate with a simple structure, at a low cost and capable of bringing adjoining iron plates into contact with each other and connecting them with a single member easily, so as to secure passage of vehicles and safety of walking and to prevent mud and dirt.SOLUTION: In a connector for floor iron plate, ends of contact parts in linearly adjoining floor iron plates are fitted to the connector in a direction orthogonal to the adjacent direction so that the adjoining floor iron plates are connected with each other. In the connector, a metal skeleton in U-shaped cross section is covered with a rubber coating, and an upper part, a lower part and a side part for connecting the upper and lower parts are formed while a space in which the ends of the floor iron plates are inserted is formed between the upper and lower parts, and the height of the space is equivalent to or less than the thickness of the floor iron plate.

Description

TECHNICAL FIELD The present invention relates to a connecting tool for laying iron plates that are laid on a floor surface or road surface of construction, a construction site, or the like and form a temporary road.

  Conventionally, in order to make it easy to go to and from construction, construction sites, etc. by walking and to prevent mud dirt, gravel is spread over unpaved passages to form temporary roads. However, gravel purchase, laying, and gravel removal were cumbersome and expensive.

  Therefore, in recent years, iron plates are laid down, and iron plates are welded to form a temporary road from the viewpoint of traffic safety and prevention of mud dirt. However, since the laid iron plate is reused, it is necessary to polish the welded portion between the iron plates after the completion of the construction. The polishing was cumbersome and expensive.

  Then, the means to connect without laying iron plates is welded is proposed. For example, Patent Literature 1 discloses a laying iron plate connector in which laying iron plates can be connected to each other without welding, and no gap is formed between end surfaces of the laying iron plates to be connected. In addition, in Patent Document 2, when a load is applied on the laying iron plate used for the temporary road on the premises at the construction site, no step is generated between the laying iron plates, so that the fall of the worker due to the step can be eliminated. In addition, a temporary laying iron plate path and a joining jig on the construction site that can easily lay and remove the laying iron plate and reliably improve the work efficiency on the site are disclosed.

JP 2003-268710 A Noto 3012923 gazette

  However, Patent Documents 1 and 2 both require other means (wedge material, fixing screw) for fixing the coupler. Moreover, in patent document 1, it is necessary to process (drilling a screw hole) to a laying iron plate. On the other hand, in Patent Document 2, there is a gap between adjacent iron plates, and in rainy weather, mud floats on the iron plate together with rainwater, so that vehicles, public roads, workers, etc. become dirty, and cleaning work is generated.

  Therefore, the present invention provides a simple structure, low cost, and easy installation of the iron plate that makes it possible to contact and connect adjacent steel plates with a single member to ensure the safety of traffic and walking of the vehicle and to prevent dirt from dirt. An object is to provide a connector.

  In order to solve the above-described problems, the present invention provides (1) a laid iron plate that is fitted at an end of an abutting portion of a laid iron plate that is linearly adjacent and is fitted perpendicularly to the adjacent direction of the laid iron plate to connect adjacent laid iron plates together. A metal frame having a U-shaped cross section is covered with a rubber coating to form an upper portion, a lower portion, and a side portion that connects the upper and lower portions, and between the upper and lower portions, A space for inserting the end portion is formed, and the height of the space is equal to or less than the thickness of the laid iron plate.

  (2) A laying iron plate coupling tool that fits at the end of an abutting portion of a laying iron plate adjacent in an L shape and connects the laying iron plates to each other, and has a U-shaped cross section and is made of a metal having a flat L shape. The upper and lower portions and the left and right side portions that connect the upper and lower portions are formed, and a plane L-shaped space for inserting the end portion of the laid iron plate is formed between the upper and lower portions. The height of the space is equal to or less than the thickness of the laid iron plate. Moreover, (3) It is set as the structure of the connector of the iron plate according to (2), wherein a striking portion is provided between the left and right side surfaces. (4) According to the third aspect of the present invention, there is provided a connecting iron plate connector according to claim 3, wherein a hole is formed in the upper surface of the hammering portion.

  (5) A tapered inclined portion is provided with an end portion of the upper rubber covering located on the laying iron plate facing the tip, according to any one of (1) to (4), It was set as the structure of the connection tool of a laid iron plate.

  Furthermore, the structure of the temporary road characterized by having fitted the connecting tool of the base iron plate in any one of (1)-(5) to the contact part of an adjacent base iron plate, and connecting the adjacent base iron plate, did.

  Since this invention is the said structure, it is simple structure, it is cheap, and the adjacent iron plates can be contact | connected easily and can be connected by one member. Therefore, it is possible to ensure the safety of traffic and walking of the vehicle and reduce the muddy water floating.

  If it is a flat L-shaped laying iron plate connector, it is possible to connect laying iron plates adjacent in the vertical and horizontal directions (right angle). Further, in the case of a flat L-shape, by providing a striking portion between the left and right side surfaces, the hammer's striking force can be used efficiently when the laying iron plate connector is fitted into the abutting portion of the laying iron plate. Can do. Furthermore, when removing the connecting iron plate connector by drilling a hole in the striking portion, the iron post can be easily removed by inserting an iron pillar into the hole and striking with a hammer. .

  By tilting the upper rubber covering toward the tip, when the vehicle passes, even if the vehicle rides on it, there is little impact on the vehicle and the passerby does not trip. By tapering the tip, the impact on the vehicle is further reduced and the safety of the passerby is increased.

It is a plane schematic diagram of an example of the temporary road which is this invention. It is a schematic diagram of an example of the coupling tool of the bottom iron plate which is this invention. It is sectional drawing when a base iron plate is connected with the connector (Example 2) of a base iron plate. It is a perspective see-through | perspective view of other embodiment (Example 3) of the coupling tool of the bottom iron plate which is this invention. It is a top view of the coupling tool (Example 3) of a laying iron plate.

  Below, based on an accompanying drawing, the temporary road which is this invention, and the connection tool of a laid iron board are demonstrated in detail.

  As shown in FIG. 1, the temporary road 30 according to the present invention is configured by fitting the connecting iron plates 1 and 11 according to the present invention to the end portions of the abutting portions 22 of the iron covering plates 20 and 21. This is a vehicle and a walking path that are fixedly connected by abutting. The dotted lines in the connecting iron plates 1 and 11 indicate a metal skeleton 2 described later.

  FIG. 2 is a schematic view of an example of a connecting iron plate connector according to the present invention. 2A is a perspective view from the front, and FIG. 2B is a cross-sectional view taken along the line AA.

  As shown in FIG. 2, the laying iron plate connector 1 is formed by covering a metal skeleton 2 having a U-shaped cross section with a rubber coating 3 and under the upper laying plate and the upper laying plate located on the laying iron plate. The lower part 1b to be positioned and the upper and lower parts 1a and 1b are connected to form a side part 1c that comes into contact with the side surface of the laid iron plate. As a result, a space 4 is formed between the upper and lower parts 1a, 1b for inserting the end of the laid iron plate. And the height 5 of the space 4 shall be below the thickness of a laid iron plate.

  There are various sizes and thicknesses of laid iron plates. In particular, a vehicle passage such as a construction site generally has a length of about 6 m, a width of 1.5 m, and a thickness of 22 mm. This standard can withstand a weight of 1.6 tons.

  For example, in the case of a covered iron plate having a thickness of 22 mm, the height 5 of the space 4 is 22 mm or less, preferably 20 mm or less.

  The skeleton 2 is preferably made of metal, such as iron, stainless steel, and other alloys having high hardness. As a material of the rubber coating 3, an existing rubber product having elasticity can be used, and the rubber coating 3 includes an elastic body such as silicon. A curing agent may be added as appropriate to adjust the hardness to a desired level from the viewpoints of space 4, detachability, and prevention of disconnection. A plurality of tapered wedge-shaped protrusions may be provided on the rubber coating 3 on the side surface of the space 4 toward the tip in order to prevent the cover iron plate from coming off during use of the connecting iron plate connector.

  The thickness of the skeleton 2 may be uniform over the entire region of iron, and may be 2.5 to 3.5 mm, preferably around 3.0 mm. The thickness of the rubber coating 3 is preferably around 5.0 mm. By adopting the metal skeleton 2, the strength can be reduced and the cost can be reduced compared to the case where the connector is entirely formed of rubber. On the other hand, by adopting the rubber coating 3, since it is an elastic body, it is possible to fit the laying iron plate connector 1 to the laying iron plate even in a space 4 narrower than the laying iron plate. There is an effect to prevent omission.

  If the depth in the space 4 direction of the upper part 1a and the lower part 1b is around 70 to 100 mm and 80 mm, it can sufficiently withstand vertical distortion and lateral displacement of the ironing board due to vibrations of a vehicle passing on the ironing board. . The length in the horizontal direction perpendicular to the depth can be changed as appropriate depending on the size of the laid iron plate. For example, when the size of the laid iron plate is about 6 m × 4 m, it may be 200 to 300 mm, more preferably around 200 mm.

  Moreover, it is good for the edge part located on the laying iron plate of the upper part 1a to form the taper-shaped inclination part 6 with the rubber coating 3 facing the front-end | tip. The gentler the sloping portion, the less impact is generated even when the vehicle rides on the laying iron plate connector 1, and the passerby does not trip, reducing the discomfort of traffic and increasing the safety.

  By forming the notches 1d and 1e at the end portions of the rubber coating in the upper part 1a and the lower part 1b on the space 4 side, it becomes easy to fit the laying iron plate connector 1 to the laying iron plate.

  FIG. 3 shows a cross-sectional view when the base iron plate connector 1 is fitted into the contact portions 22 of the base iron plates 20 and 20 and the base iron plates that are linearly adjacent to each other are connected in the same direction. The laying iron plate connector 1 thus constructed is easily fitted to the end of the abutting portion 22 of the laying iron plates 20 and 20, and can be connected and held in a state where the laying iron plate is in contact.

  FIG. 4 shows a perspective perspective view of another embodiment (Example 3) of a connecting iron plate connector according to the present invention, and FIG. 5 shows a plan view thereof. The broken lines indicate the arrangement of the skeleton 12 made of metal.

  As shown in FIGS. 4 and 5, the laying iron plate connector 11 has a U-shaped cross section and is covered with a rubber coating 13 on a plane L-shaped metal skeleton 12 and is located on the laying iron plate. An upper portion 11a, a lower portion that will be positioned below the laying iron plate, and left and right side portions 11c and 11f that connect the upper and lower portions 11a and 1b and come into contact with the side surface of the laying iron plate.

  As a result, a plane L-shaped space is formed between the upper and lower portions 11a and 11b for inserting the end portion of the laid iron plate. And the height 15 of the space 14 shall be below the thickness of a laid iron plate. The laying iron plate connector 11 thus formed is fitted to the end portions of the abutting portions of the laying iron plates 20 and 21 adjacent to each other in an L shape to connect the laying iron plates 20 and 21.

  If the skeleton 2 made of metal has a thickness of the skeleton 2 of iron, it is uniform over the entire region and may be 2.5 to 3.5 mm, preferably around 3.0 mm. The thickness of the rubber coating 3 is preferably around 5.0 mm. Each of the shapes is a plane L shape. The lengths of the upper end portions of the opposite left and right side surfaces 11c and 11f can be appropriately changed depending on the size of the laid iron plate. For example, when the size of the laid iron plate is about 6 m × 4 m, it may be 200 to 300 mm, more preferably around 200 mm.

  In addition, since the following structure is the same as the corresponding structure of Example 1, description here is abbreviate | omitted. That is, the rubber coating 13 is the same as the rubber coating 3, the space 14 is the space 4, the inclined portion 16 is the inclined portion 6, and the notches 1d and 1e are the same as the notches 11d and 11e.

  Further, a striking portion 11g is provided between the left and right side surfaces 11c and 11f. The hitting portion 11g is a flat side surface portion that is driven with a hammer or the like when the connecting iron 11 is fitted into the abutting portions 22 of the adjacent iron plates 20 and 21 in an L shape. Note that the side surface of the hitting portion 11g does not need to be flat as long as it can be hit with a hammer or the like. Since the laying iron plate connector 11 is L-shaped in a plane, the left and right side portions 11c and 11f can be beaten and fitted. However, in order to fit uniformly, it is desirable to include the beating portion 11g.

  Further, a hole 17 is formed in the upper surface of the hitting portion 11g. The hole 17 may be penetrated or recessed. The hole 17 is effective for facilitating removal by inserting a pipe or the like into the hole 17 and striking the pipe with a hammer or the like when removing the laying iron plate connector 11 from the laying iron plate.

  Also in Example 14, the rubber coating 3 on the side 1c side is thickened, and holes are provided in the upper and lower parts 1a, 1b direction, and similarly to the hole 17, it is used when removing the laying iron plate connector 1 from the laying iron plate. be able to. In the first embodiment, even one hole can be provided at the left and right ends.

  Even if the hooks 1 and 11 of the laying iron plate are removed from the laying iron plate, the upper portions 1a and 11a can be obtained by providing a locking hole on the side surface of the side portion 1c and the striking portion 11g and pulling the bar or the like. You may provide the groove | channel which latches a bar etc. in a plane.

DESCRIPTION OF SYMBOLS 1 Connection iron plate connector 1a Upper part 1b Lower part 1c Side part 1d Notch 1e Notch 2 Skeleton 3 Rubber coating 4 Space 5 Height 6 Inclined part 11 Connection part 11a Upper part 11b Lower part 11c Left side part 11d Notch 11e Notch Notch 11f right side 11g striking portion 12 skeleton 13 rubber coating 14 space 15 height 16 inclined portion 17 hole 20 laid iron plate 21 laid iron plate 22 abutting portion 30 temporary road

Claims (6)

It is a connecting tool for a laying iron plate that connects the laying iron plates adjacent to each other by fitting perpendicularly to the adjacent direction of the laying iron plate at the end of the abutting portion of the laying iron plate adjacent in a straight line,
A metal skeleton having a U-shaped cross section is covered with a rubber coating to form an upper portion, a lower portion, and a side portion connecting the upper and lower portions, and there is a space for inserting an end portion of the laid iron plate between the upper and lower portions. A laying iron plate connector formed, wherein a height of the space is equal to or less than a thickness of the laying iron plate. It is a connecting tool for a bottom iron plate that fits at the end of the abutting portion of the bottom iron plate adjacent in an L shape and connects the bottom iron plates to each other,
A U-shaped metal skeleton having a U-shaped cross section is covered with a rubber coating to form upper and lower portions and left and right side portions that connect the upper and lower portions, and between the upper and lower portions, A plane iron plate coupling tool, wherein a planar L-shaped space for inserting an end portion is formed, and the height of the space is equal to or less than the thickness of the bed iron plate. The laying iron plate connector according to claim 2, wherein a striking portion is provided between the left and right side surfaces. The laying iron plate connector according to claim 3, wherein a hole is formed in an upper surface of the striking portion. The laid iron plate according to any one of claims 1 to 4, wherein a tapered inclined portion is provided with an end portion of the upper rubber covering located on the laid iron plate facing the tip. Coupling tool. The temporary road characterized by fitting the connector of the base iron plate of any one of Claims 1-5 to the contact part of the adjacent base iron plate, and connecting the adjacent base iron plate.

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