JP2010013137A - Steel skid and assembling method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light-weight steel skid that can be easily assembled/disassembled when the skid carrying a rectangular heavy load, such as a thin steel sheet, or a coiled elongated object is moved, and to provide an assembling method thereof. <P>SOLUTION: The steel skid 1 is formed from lower frame materials 2 disposed with two or more channel steels each having an upward opening formed of a continuous back face with a groove-shaped recess and opposed side faces each having short sides on both sides, and upper frame materials 3 composed of two or more channel steels having a similar shape and placed on the lower frame materials 2 in perpendicular thereto, with the groove-shaped recess on the back faces set downward. Two pairs of cuts are formed in both short sides at each opening of the lower frame material at parts that are perpendicular to the upper frame material. Raised pawls engaging with the paired cuts are formed in both sides of the groove-shaped recess formed in the back face of the upper frame material 3 at parts that are perpendicular to the lower frame material 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a steel kid that can be easily moved by loading a rectangular heavy object formed by laminating rectangular objects such as thin steel sheets or a coiled object wound with a long object that is difficult to handle. The present invention relates to an assembly method.

  Conventionally, as a frame for lifting and transporting rectangular objects such as thin steel sheets stacked with rectangular heavy objects or coiled objects wound with long objects that are difficult to handle, the intersections have been nail-fixed. The main use of wooden underframes has been, but in recent years, the price of wooden underframes has risen due to depletion of wood resources. At the same time, due to the situation where problems such as removal of wood related to environmental protection such as the generation of a large amount of carbon dioxide gas are pointed out, steel skids that can be reused instead of wooden underframes have been widely used.

  In the conventional steel skid, three square steel pipe upper frame rods 25 arranged in parallel at intervals in the front and rear, and three square steel tube lower frame rods 26 arranged in parallel at intervals in the left and right are provided. The upper frame rod 25 is locked between the locking brackets 27 fixed to the lower frame rod at the cross-shaped intersection of the intermediate upper frame rod and the left and right lower frame rods, and the upper frame While the horizontal position of the upper frame rod is regulated by the positioning brackets 28 fixed to the left and right ends of the rod 25, the L-shaped coupling bracket 29 fixed to the upper frame rod at the T-shaped intersection of the upper frame rod and the lower frame rod. Thus, the upper frame rod and the lower frame rod are connected to each other, and wire fittings 30 are provided on the outer surface of the lower frame rod at the four corners. (See Patent Document 1)

However, conventional steel skids are mainly composed of three or more square steel pipe upper and lower frame rods, and one lower frame rod does not have a disengagement prevention mechanism for receiving the upper frame rod, Equipped with positioning brackets and receiving brackets on the top or side, the other upper frame rods placed on the lower frame rods correspond to the above-mentioned receiving metal fittings and wire brackets as steel skids. Starting from the fact that the upper and lower frame rods made of square steel pipes are heavy in weight because of the L-shaped connecting brackets of complicated configuration inserted from the inside, there are many protrusions on each of the upper and lower frame rods The lack of inconvenience in processing operations such as assembly and disassembly as a whole, with the complexity of processing complex mechanisms while paying attention to handling so as not to injure the equipment. The had been exposed.
For this reason, the above disadvantages have been recognized for conventional steel skids that have been proposed instead of the wooden frame, which had many problems. Steel skid that can be easily handled without the need for extra attention by stopping the upper and lower frame か ら and reducing the shape of the protruding parts installed there. There were many voices in the related industries that long-awaited the emergence of.
Japanese Laid-Open Patent Publication No. 2003-231524

  The present invention provides a projecting component for easily moving a stack of rectangular heavy objects formed by stacking rectangular objects such as thin steel sheets or coiled objects wound with long objects that are difficult to handle. It is an object of the present invention to provide a steel kid that is easy to assemble and disassemble and has a light weight as a whole and a method for assembling the same.

A basic steel skid according to the present invention is a grooved steel in which a groove-type depression is formed in the center of a continuous back surface, and openings having short sides are formed on both sides of the groove. With two or more lower frame members arranged with the opening on the upper side, and a similar grooved steel on the lower frame member, and two or more upper frame members arranged in the orthogonal state with the grooved recess on the back side on the lower side. And a pair of notches formed in a portion perpendicular to the upper frame material on the short sides on both sides of the opening of the grooved steel constituting the lower frame material. L-shaped cut and raised claws are formed on both sides of the groove-shaped depression formed on the back surface of the grooved steel constituting the material on the outer side to be fitted with the pair of cuts in the portion orthogonal to the lower frame material. The steel skid is easy to assemble and disassemble and is light in weight. On the other hand, the grooved recess on the back improves the workability as a guide through the fixed hoop of the load while improving the strength of the steel skid. It is configured to demonstrate.

  Another steel skid according to the present invention is a steel skid in which an upper frame member is disposed on both cut ends of a lower frame member, and a groove formed on the back surface of the channel steel constituting the upper frame member. A presser part for engaging with the L-shaped cut-and-raised claw is formed on the outer side of the part formed on the outer end side of the lower frame member of the mold recess at the upper end, and both side surfaces of the lower frame member A skid fitting is provided at both cut ends of the lower frame material, with gripping portions on both sides and a notch that penetrates the grooved recess formed on the back surface of the lower frame material at the lower end. In addition to the above effects, the strength of the steel skid is improved while concisely.

  Another further improved steel skid according to the present invention is the above-described other steel skid, wherein the gripping portion of the skid metal fitting that holds both side surfaces of the lower frame member is connected to both side surfaces of the channel steel constituting the lower frame material. The above effect is achieved by comprising a pressing part provided at the center of both sides to be restrained on the inside and a support part that supports both side surfaces of the channel steel on the outside by being equipped on the upper and lower sides of this pressing part. In addition, the strength of the lower frame material and steel skid is further established.

  The method for assembling a steel skid according to the present invention comprises a groove with a short side having a pair of cuts at a position perpendicular to the upper frame member, with the back surface formed with a groove-shaped depression at the center and on the upper side. At least two lower frame members made of shape steel are arranged at a predetermined interval, and at a portion orthogonal to the lower frame member on both sides of the groove-shaped recess formed on the back surface in a state orthogonal to the lower frame member The upper frame member made of grooved steel with the back side provided with an L-shaped raised and raised claw on the outside to be fitted with the pair of cuts is made into a form corresponding to the cuts of the lower frame member. Two or more pieces are arranged on the frame member, and then an opening in the vicinity of the orthogonal part of the lower frame member is enlarged to make an L-shaped cut-out on the outside provided in the upper frame member at each cut of the lower frame member. Assemble the steel skid together by fitting both ends of the nail By and Te, facilitating the processing operation of the assembly and disassembly of the steel skids.

  Another method for assembling a steel skid according to the present invention is that a lower frame member having an opening portion having a short side having a pair of cuts at a portion orthogonal to the upper frame member is placed at a predetermined interval with the opening portion on the upper side. Two or more upper frame members with L-shaped raised and raised claws on the outside to be fitted to the cuts of the lower frame member are arranged at positions orthogonal to the lower frame member with the back side facing down. While expanding the opening in the vicinity of the orthogonal part of the lower frame member, both ends of the L-shaped cut and raised claw were fitted to the outside provided on the upper frame member in each cut of the lower frame member, and assembled integrally Later, by placing the skid fitting at the cut end of the lower frame member, the skid fitting is attached to the L-shaped cut-and-raised claw on the side of the lower frame member of the groove-shaped recess formed in the upper frame member. After engaging the presser part provided on the upper end of the While holding down on the inside with the pressing part provided at the center of the vertical surface of the kid fitting, it supports both sides of the lower frame material by supporting it on the outside by the support parts equipped on the upper and lower sides of this pressing part, and the lower frame In addition to the above effects, the strength of the lower frame member and the steel skid is further established by passing through the groove-shaped recess formed in the material through the notch formed in the lower end of the skid fitting.

  The steel kid and its assembling method according to the present invention can be easily carried by stacking rectangular heavy objects formed by laminating rectangular objects such as thin steel sheets or coiled objects wound with long objects that are difficult to handle. In order to move it, the shape of the protruding parts is reduced and the equipment mechanism is simplified, so that the assembly / disassembly processing operation in the steel skid is easy and the overall weight is light. The mold dent improves the workability of the steel skid while improving the workability as a guide for passing through the fixed hoop of the load.At the same time, it hides the fixing bracket of the fixed hoop so that it can be properly stacked without obstructing the loading form. I play.

  The steel skid according to the present invention has a grooved steel formed by forming a groove-type depression at the center of a continuous back surface, and forming openings with short sides on both sides on the side facing the back surface. A lower frame member arranged with two or more at the upper part, and an upper frame member arranged with two or more orthogonal grooved steels on the lower frame member, with two or more of the groove-shaped recesses on the back side facing down The upper frame material is constructed by forming two pairs of cuts in the portion perpendicular to the upper frame material on the short sides on both sides of the opening of the grooved steel constituting the lower frame material. Basically, L-shaped cut and raised claws are formed on both sides of the groove-shaped recess formed on the back surface of the groove-shaped steel to be engaged with the pair of cuts at a portion orthogonal to the lower frame member. Therefore, the assembly / disassembly processing operation is easy and the overall configuration is lightweight.

  The steel skid according to the present invention has a grooved steel formed by forming a groove-type depression at the center of a continuous back surface, and forming openings with short sides on both sides on the side facing the back surface. Consists of two or more lower frame members arranged on the upper side and an upper frame member arranged in an orthogonal state with two or more similar grooved steels on the lower frame member with the grooved recess on the back side down Therefore, the form of the steel skid will be described based on FIG. 1 showing a perspective view and FIGS. 2 and 3 showing a lower frame member and an upper frame member.

The steel skid 1 according to the present invention has two or more upper frames arranged in the vertical direction in FIG. 1A on two or more lower frame members 2 arranged in the horizontal direction in FIG. Arranging the frame members 3 forms a basic rectangular parallelepiped shape. The lower frame member 2 and the upper frame member 3 are formed of the opening 4 formed in the lower frame member 2 as shown in FIG. The lower side 5 of the upper frame member 3 is located on the back surface 9 of the pair of cuts 6 and 6 formed in the portion orthogonal to the upper frame member 3 at the short sides 5 and 5 formed opposite to both sides. The cut-and-raised claw 7 formed in the portion of the back surface 9 on both sides of the groove-shaped recess 10 corresponding to the plurality of cuts 6 orthogonal to the frame member 2 is firmly coupled at each orthogonal portion. Yes.
As a result, the teal skid 1 can be easily formed with a hoop after loading a rectangular heavy object formed by laminating rectangular objects such as thin steel plates or a coiled object wound with a long object that is difficult to handle. Along with fixing, the rope of a crane or the like is slipped with the lower frame material so that it can be simply moved in a stable state. At the same time, when storing it, a coiled object wound with a rectangular heavy object or a long object is integrated. It functions well as a transporting device that enables it to be stacked and organized in a reliable manner.

As shown in FIG. 2, the lower frame member 2 has a groove-shaped recess 12 formed in the center of the continuous back surface 11 to enhance the strength. The side surface 13 facing the back surface 11 has short sides 5 on both sides. 5 is formed of channel steel formed by forming an opening 4 having 5.
The side view of FIG. 2 shows the one end 14 side of the channel steel in a partial cross section in the direction of arrow BB in order to show the notch 6 in detail, and the cross sectional view of FIG. The form which made the cross section in the arrow CC direction in the edge part of this is shown. In the present embodiment, in order to arrange the three upper frame members on the lower frame member 2, the notches 6 formed in the short side 5 of the lower frame member 2 are orthogonal parts as shown in the side view. The two short sides 5 and 5 at the positions of both end portions and the central portion are arranged in a pair of two pairs.
In this embodiment, the shape of the cut 6 is cut in the direction perpendicular to the short side 5 as shown in the drawing, and the cut portion 8 is pushed and bent as it is, leaving the open portion as a cut. The shape can be selected to be any other shape, for example, the shape in which the cut portion 8 is removed.

As shown in FIG. 3, the upper frame member 3 has a groove-shaped recess 16 formed at the center of the continuous back surface 15 to enhance the strength. The side surface 17 facing the back surface 15 has short sides 5 on both sides. 5 is formed of a grooved steel having a vertical dimension that is shorter than the lower frame member.
The side view of FIG. 3 shows the central part of the channel steel with a partial cross section in the direction of the arrow DD in order to show the cut-and-raised claw 7 in detail, and the cross-sectional view of FIG. The form which made the cross section in the arrow EE direction in the center part of a figure is shown. In this embodiment, in order to arrange the three upper frame members on the lower frame member 2, the cuts formed on both sides of the groove-shaped recess 16 formed in the central portion of the back surface 15 of the upper frame member 3. As shown in the side view, the raising claws 7 are arranged in the form of being formed in the vicinity of the both ends, which are parts orthogonal to the lower frame member 2, and in the position of the center portion.
The cut-and-raised claw 7 formed on the back surface 15 of the upper frame member 3 is also formed by punching out the corresponding portions of the back surface 15 from both sides of the groove-shaped recess 16 formed in the central portion of the continuous back surface 15 in this embodiment. It is cut and raised to form an L-shaped claw on the outside. About the L-shaped shape formed on this cut and raised claw 7 and the formation position of the cut and raised claw 7 on the inner and outer sides in the grooved recess 16, Any form can be easily selected as long as it can be formed in a fitting relationship with the notch 6 of the lower frame member 2.

As described above, the shape of the lower frame member 2 constituting the steel skid according to the present invention is such that there is no portion protruding outside the channel steel forming the lower frame member 2, and the upper frame For the incision 6 used for the fitting mechanism in the part orthogonal to the material and the groove-type recess 12 for improving the strength, such as welding, etc., costly work is abolished and cut inward or batch processing by punching molding, etc. It is in a form that can be easily manufactured by inexpensive work.
Similarly, the portion of the upper frame member 3 that protrudes outside the grooved steel is only the cut-and-raised claw 7 formed on the outside in the shape of an L-shaped claw. In addition, by rounding the sharp corners into a soft shape, there are few dangerous protrusions that need to worry about the killing problem when assembling and disassembling the steel skid. Even if it exists, it is contained in the structure which can be easily manufactured by the cheap collective processing operation similar to the lower frame material 2.

Another steel skid according to the present invention is a steel skid in which an upper frame member is disposed on both cut ends of a lower frame member, and a groove formed on the back surface of the channel steel constituting the upper frame member. A presser part for engaging with the L-shaped cut-and-raised claw is formed on the outer side of the part formed on the outer end side of the lower frame member of the mold recess at the upper end, and both side surfaces of the lower frame member A skid fitting is provided at both cut ends of the lower frame material, with gripping portions on both sides and a notch that penetrates the grooved recess formed on the back surface of the lower frame material at the lower end. Therefore, the strength of the steel skid is improved while keeping it concise.
Further, the improved steel skid has a pressing part provided at the center of both sides for holding the gripping part of the skid metal fitting in the other steel skid inwardly on both sides of the grooved steel constituting the lower frame member. Since it is comprised from the support part which equips the upper and lower sides of a press part and supports the both sides | surfaces of a channel steel on the outer side, the intensity | strength of a lower frame material and a steel skid is further established.

Another steel skid according to the present invention is formed on the outer side formed on the outer side of the lower frame member of the groove type recess formed on the back surface of the grooved steel constituting the upper frame member. A pressing part is formed at the upper end to engage with the cut-and-raised claw of the mold, and a pressing part provided at the center of both sides that holds both side surfaces of the grooved steel constituting the lower frame material inward, and the upper and lower sides of this pressing part And a lower end with a notch for penetrating a groove-shaped recess formed in the back surface of the lower frame member. 4 is a perspective view of the upper and lower frame members showing the state at the end portion of the steel skid in a partially assumed view. To do.

  The partial perspective view showing the upper and lower frame members in an orthogonal connection state is an L-shaped cutout on the outer side of the upper frame member 3 fitted in a short side cut formed on the upper surface of the lower frame member 2. The raising claw is partially assumed by the lower frame material indicated by the one-dot chain line and the upper frame material indicated by the two-dot chain line, and generally indicates the installation state of the skid fitting at the end of the lower frame material.

The skid fitting 18 is formed with a holding portion 19 for engaging with an L-shaped cut-and-raised claw on the outer side of the upper frame member 3 so that both side surfaces of the channel steel constituting the lower frame member are held inward. A grasping portion is formed by the pressing portion 20 provided at the center portion on both sides and the support portions 21 and 22 that support both side surfaces of the channel steel provided on the upper and lower sides of the pressing portion 20 on the outside, and the lower frame member A notch 23 is formed at the lower end for penetrating the groove-type depression formed on the rear surface of the second plate.
Since the presser portion 19 is provided to engage with a cut-and-raised claw provided at a portion located on the outer end side of the lower frame member 2 of the groove-shaped recess formed on the back surface of the upper frame member 3, In this way, the skid bracket 18 is formed in such a shape as to be provided with an engagement piece 24 that can be bent up at a right angle after reaching the position where it can be cut and raised from the upper end side of the main body toward the inside and can be engaged with the claw. .
The pressing portion 20 constituting the center of the grasping portion extends from both sides of the skid fitting 18 toward the outer surface of the lower frame member 2 so as to hold down both vertical side surfaces of the lower frame member 2 from the outer side. The lower frame member 2 is configured to withstand a load applied to the lower frame member 2 without being buckled outward. As shown in the drawing, the pressing portion 20 is bent once in a direction away from the end of the lower frame member 2 from the main body of the skid fitting 18 and then bent in a direction to hold down the side surface of the lower frame member 2 to move to the side surface of the lower frame member 2. It is desirable to increase the pressing force.
The support portions 21 and 22 function so as not to buckle inward by supporting both side surfaces of the channel steel in the outer direction, and are provided to the inside of the support portion 21 located above the pressing portion 20. It is desirable that the extension length is longer than the extension length of the pressing portion 20, and it is necessary to consider a surface that is stable when the skid fitting 18 is attached to the end of the lower frame member 2. On the other hand, the extension length of the support portion 22 positioned below the pressing portion 20 is preferably shorter than the extension length of the pressing portion 20, and the end shape thereof is inclined downward as shown in the figure. When the skid fitting 18 is attached to the end portion of the lower frame member 2, it is easy to handle and exhibits the effect of ensuring the shape.
The notch 23 formed in the lower end surface establishes a stable mounting of the skid fitting 18 so as to penetrate the groove-shaped recess of the lower frame member 2, and together with the presser portion 19 on the upper end side, the lower frame It also functions to be worn on the end face of the material 2 without a gap.
The ends of the lower frame member 2 are fixed so as not to move when loading and fixing a coil-shaped object obtained by winding a rectangular heavy object such as a thin steel plate or a long object such as a metal wire on a steel skid. Therefore, holding the shape of the load and preventing buckling deformation in the lower frame member are essential functions, so application to the end of the lower frame member of the skid fitting 18 is an effective means. .

The method for assembling a steel skid according to the present invention comprises a groove with a short side having a pair of cuts at a position perpendicular to the upper frame member, with the back surface formed with a groove-shaped depression at the center and on the upper side. At least two lower frame members made of shape steel are arranged at a predetermined interval, and at a portion orthogonal to the lower frame member on both sides of the groove-shaped recess formed on the back surface in a state orthogonal to the lower frame member The upper frame member made of grooved steel with the back side provided with an L-shaped raised and raised claw on the outside to be fitted with the pair of cuts is made into a form corresponding to the cuts of the lower frame member. Two or more pieces are arranged on the frame member, and then an opening in the vicinity of the orthogonal part of the lower frame member is enlarged to make an L-shaped cut-out on the outside provided in the upper frame member at each cut of the lower frame member. Assemble the steel skid together by fitting both ends of the nail By and Te, facilitating the processing operation of the assembly and disassembly of the steel skids.
Another method for assembling the steel skid is to arrange two or more lower frame members at a predetermined interval as described above, and then arrange two or more upper frame members at a position orthogonal to the lower frame member and assemble them integrally. After that, the skid fitting is arranged at the cut end of the lower frame member, and the presser part provided at the upper end of the skid fitting is engaged with the cut-and-raised claw formed in the groove-type recess of the upper frame member. While holding both sides to the inside with the pressing part provided in the center of the vertical surface of the skid bracket, while holding the both sides of the lower frame material by supporting it outside by the support part equipped on the upper and lower sides of this pressing part Since the groove-shaped recess formed in the lower frame member is passed through the notch formed in the lower end of the skid fitting, the strength of the lower frame member and the steel skid is further established.

  The method for assembling a steel skid according to the present invention comprises a groove with a short side having a pair of cuts at a position perpendicular to the upper frame member, with the back surface formed with a groove-shaped depression at the center and on the upper side. At least two lower frame members made of shape steel are arranged at a predetermined interval, and at a portion orthogonal to the lower frame member on both sides of the groove-shaped recess formed on the back surface in a state orthogonal to the lower frame member The upper frame member made of grooved steel with the back side provided with an L-shaped raised and raised claw on the outside to be fitted with the pair of cuts is made into a form corresponding to the cuts of the lower frame member. Two or more pieces are arranged on the frame member, and then the opening in the vicinity of the orthogonal part of the lower frame member is enlarged, and an L-shaped cut-and-raised claw is provided on the outer side provided on the upper frame member in each cut of the lower frame member. Assemble the steel skid together by fitting both ends Basically, after assembling the steel skid integrally, the skid bracket is placed at the cut end of the lower frame member, and the presser part provided at the upper end of the skid bracket is formed on the raised nail formed in the grooved recess of the upper frame member. Engage and hold both sides of the lower frame material to the outside with the support parts installed on the upper and lower sides of the pressing part while holding the both sides of the lower frame material inward with the pressing part provided in the center of the vertical surface of the skid fitting. Since the groove-shaped depression formed in the lower frame member is penetrated through the notch formed in the lower end of the skid fitting, it is described in detail on the basis of FIGS. explain.

In the method for assembling the steel skid according to the present invention, as shown in FIG. 5, two pairs of notches 6 are formed at a position perpendicular to the upper frame member with the back surface 11 having a groove-shaped recess 12 formed first in the center portion. Three lower frame members 2 made of channel steel with the opening 4 having the short side 5 on the upper side are arranged at a predetermined interval.
Next, on the outer side of the groove frame 16 formed on the back surface 15 in a state orthogonal to the lower frame member 2 on the both sides of the grooved recess 16 and perpendicular to the lower frame member, the outer frame L The lower frame material with the upper frame 3 made of grooved steel corresponding to the notches 6 of the lower frame material 2 as shown in FIG. 3 are arranged at predetermined positions on 2.
FIG. 7 clarifies the process of firmly joining the lower frame member 2 and the upper frame member 3 disposed on the lower frame member 2 in a form orthogonal to each other. In the vicinity of the short sides 5 and 5 on both sides where each notch is formed, an L-shaped outside is provided on the upper frame member 3 by pressurizing the opening 4 in a direction in which it is expanded. Both ends of the cut-and-raised claw 7 are enlarged to positions where they are fitted into the respective cuts 6 formed in the short sides 5 and 5.
Thereafter, both ends of the cut-and-raised claw 7 are accurately fitted to the notches 6 of the short side 5, and the lower frame member 2 and the upper frame member 3 are firmly joined by this process. As a solid steel skid 1 shown in FIG. 1, a steel skid assembling method in which assembling and disassembling processing operations are facilitated is completed.
Although not explained in each process of FIGS. 5 to 7, in addition to the basic steel skid assembling method described above, a process of arranging the skid fitting explained in FIG. 4 at the cut end of the lower frame member 2 is added. Then, the above-described embodiment is presented as an embodiment of another assembling method of the steel skid according to the present invention, whereby the strength of the lower frame member and the steel skid is further improved.

  The present invention relates to a steel kid that can be easily moved by loading a rectangular heavy object formed by stacking rectangular objects such as thin steel sheets or a coiled object wound with a long object that is difficult to handle. The assembly method is provided, the form of the protruding parts is reduced and the equipment mechanism is simplified to facilitate the assembly and disassembly processing operations, and the overall effect is lightweight and can be stacked appropriately. Have

A perspective view of a steel skid according to the invention Side view and sectional view showing the lower frame Side view and sectional view showing the upper frame Perspective view of skid fittings mounted on the lower frame Lower frame material placement process diagram Arrangement process diagram of upper frame material arranged on lower frame material Expansion process drawing of lower frame material opening Conventional steel skid diagram

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Steel skid, 2 ... Lower frame material, 3 ... Upper frame material, 4 ... Opening part, 5 ... Short side, 6 ... Cut, 7 ... Cut-and-raised nail, ... 8 cut part, 9, 11, 15 ... Back DESCRIPTION OF SYMBOLS 10, 12, 16 ... Groove type | mold depression, 13, 17 ... Side surface, 14 ... One end of channel steel, 18 ... Skid metal fitting, 19 ... Holding part, 20 ... Pressing part, 21, 22 ... Supporting part, 23 ... Cutting , 24 ... engagement piece, 25 ... square steel pipe upper frame rod, 26 ... square steel pipe lower frame rod, 27 ... locking bracket, 28 ... positioning bracket, 29 ... L-shaped coupling bracket, 30 ... wire fitting

Claims (5)

Two or more grooved steels are formed, with a groove-shaped depression formed in the center of the continuous back surface and openings formed with short sides on both sides facing the back surface, with the opening facing upward. A groove constituting a lower frame material, comprising a lower frame material and an upper frame material in which two or more similar groove steels are arranged in an orthogonal state with the rear groove-type depression on the lower side. Two pairs of cuts are formed on the short sides on both sides of the opening of the shape steel at a position orthogonal to the upper frame material, and both sides of the groove-shaped depression formed on the back surface of the grooved steel constituting the upper frame material A steel skid characterized in that an L-shaped cut-and-raised claw is formed on the outer side that fits with the pair of cuts at a portion orthogonal to the lower frame member. A steel skid in which an upper frame material is arranged on both cut ends of a lower frame material, on the outer end side of the lower frame material of a groove-shaped recess formed on the back surface of the channel steel constituting the upper frame material. A presser part that engages with the L-shaped cut-and-raised claw is formed on the outer side formed on the side where the part is located, and a gripping part that holds both side surfaces of the lower frame member is provided on both sides, and the rear surface of the lower frame member The steel skid according to claim 1, wherein a skid fitting formed by forming a notch penetrating the groove-shaped depression formed in the lower end is provided at both cut ends of the lower frame member. The gripping part of the skid fitting that holds both sides of the lower frame material is equipped with a pressing part provided at the center of both sides that holds both side surfaces of the grooved steel constituting the lower frame material inside, and the upper and lower sides of the pressing part The steel skid according to claim 2, wherein the steel skid is composed of support portions that support both side surfaces of the channel steel to the outside. A lower frame member made of channel steel with a short side having a short side having a pair of cuts in a portion orthogonal to the upper frame member with a back surface formed with a groove-shaped depression in the central portion on the lower side and a predetermined portion. Two or more are arranged at intervals, and an L-shaped cut is formed on the outer side of the groove-shaped recess formed on the back surface in a state orthogonal to the lower frame material and fitted to the pair of cuts at a portion orthogonal to the lower frame material. Two or more upper frame members made of channel steel with raised claws on the lower side are arranged on the lower frame member in a form corresponding to the incision of the lower frame member, and then orthogonal to the lower frame member A method of assembling a steel skid by enlarging an opening in the vicinity of a part and fitting both ends of an L-shaped cut-and-raised claw to the outside provided in the upper frame member in each cut of the lower frame member. Two or more lower frame members having an opening with a short side having a pair of cuts in a portion orthogonal to the upper frame member are arranged at predetermined intervals with the opening portion on the upper side, and a portion orthogonal to the lower frame member While opening two or more upper frame members provided with L-shaped cut and raised claws on the outside to be fitted into the cuts of the lower frame member, the opening near the orthogonal part of the lower frame member is enlarged. After fitting both ends of the L-shaped cut-and-raised claw to the outside provided on the upper frame material in each cut of the lower frame material, the skid metal fitting is arranged at the cut end of the lower frame material to The holding part provided at the upper end of the skid fitting is engaged with the L-shaped cut-and-raised claw on the side of the lower frame member of the groove-shaped recess to be formed, and then both sides of the lower frame member are skid. While holding down on the inside with the pressing part provided in the center of the vertical surface of the metal fitting, 5. The nipped recess formed in the lower frame member is penetrated through a notch formed in the lower end of the skid fitting, while being supported by being supported on the outside by the provided support portion. Steel skid assembly method.

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