JPH0631065Y2 - Top plate - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention creates a stage into which a truck or the like can be loaded, in order to bring construction materials into the excavated site when performing underground skeleton construction. Finally, it relates to a top plate which is one of the members used.

(Prior Art) Conventionally, in order to create a stage, a stage pile made of H-shaped steel or the like is driven upright at a predetermined interval in a previously excavated place, and the tip is horizontally melted by gas or the like, and then required. Weld the size-maintaining plate by electric welding.

Next, after placing the large drawing material made of H-shaped steel between the stage piles through the respective holding plates and fixing it by bolting to the holding plates and installing it, the H attached to the large drawing material at the required intervals. It is constructed by laying a lining plate on a joist made of shaped steel.

(Problems to be solved by the invention) Since the stage pile is driven upright in the soil to be erected, the facing faces of the stage piles on which the pulling bar is erected are made to be exactly parallel to each other, or at the upper end of both It is extremely difficult to make the core wires collinear.

For this reason, the holding plate fixed to the tip is welded to the stage pile while adjusting the position by welding the core wire so that the erected hauling material can be bolted, and the work is extremely troublesome. Since a welding machine with a too large capacity cannot be installed in, there is a drawback that welding also takes time and requires a lot of man-hours.

In addition, since most of the materials used for underground construction work are mostly leased ones, it is in principle necessary to repeatedly use each material.Therefore, during dismantling work, the holding plate stuck must be removed by melting. However, it has a drawback that it requires a lot of man-hours, damages the stage piles, and makes it impossible to reuse the holding plate.

(Means for Solving the Problem) The present invention has been made in view of the above-mentioned conventional problems, and can be detachably mounted on a stage pile by bolting without welding with a simple structure. By so doing, it is intended to dramatically improve the function of the top plate and solve the above problems.

According to the present invention, a cylindrical substrate having a substantially same area as the surrounding area of the H-shaped steel cross section of the stage pile is provided with a cylindrical protrusion at the center of one surface thereof and a bolt hole near the center of the other surface. The bolt holding plates are opposed to each other and are projected in parallel with the straight lines orthogonal to the opposite side surfaces passing through the center of the substrate and holding a required gap, and at the four corners, the same required distance is inward from each side surface. Fixing plates each having the bolt holding plate projecting on a straight line orthogonal to the straight line; and an elliptical sliding hole into which the projecting part bored at the center is slidably fitted, and each side. Is a top plate comprising a sliding plate having the same shape as the fixing plate in which bolts for tightening a large pulling material fixed in a non-rotatable manner are erected at a plurality of positions inward of the required dimension. .

(Operation) The top plate can be easily centered by adjusting the sliding plate even if the opposing stage piles on which the hauling material is installed are not accurately centered. Since it does not require so much attention, it is extremely easy to set up.

In addition, the top plate is attached to the H-shaped steel by tightening the bolts, and at that time, care is not taken when centering.
Very easy to attach compared to conventional welding,
Further, since no welding is performed, even a low-technician can perform the work.

Also, since most of the materials used for underground construction work are leased ones in principle, it is in principle necessary to repeatedly use each material, so the top plate must be removed at the time of dismantling work, but that The work is extremely easy and does not require a lot of man-hours. Moreover, the work itself or the stage pile is hardly damaged during the work, and it can be reused repeatedly.

(Embodiment) The present invention will be described in detail below based on an embodiment shown in FIGS. 1 to 4. 1 is a square plate-shaped substrate 3 having a required thickness and substantially the same area as the surrounding area formed by connecting the outer corners of the cross section of the H-shaped steel 2 used for the stage pile, and the central portion of one surface thereof A cylindrical projection 5 of a required height provided on the shaft core with a screw hole 4 and a bolt hole 6 near the center of the other surface near the center and four corners. It is a fixed plate in which bolt holding plates 7 each having a rectangular plate shape are provided in a protruding manner.

In the vicinity of the center of the substrate 3, the axis of the bolt hole 6 is placed on a straight line X that passes through the substrate center C and is orthogonal to the opposite sides 8 and 8 '. Sides 8 ″, parallel to a straight line Y orthogonal to 8 and both sides 8,
The central fixing portion 9 is formed by projecting two bolt holding holes 7 at the same distance to the 8'side and holding a required gap exceeding the thickness of the web portion 2'of the H-shaped steel 2. In addition, the four corners of the substrate 3 are inwardly arranged by the same required dimension from the opposite side edges 8 and 8 ', and the same required dimension exceeds the thickness of the flange 2 "of the H-shaped steel 2 from the opposite side edges 8" and 8 ". Four bolt holding plates 7 on a straight line parallel to the straight line X with the space inside
To form inner fixing portions 10 and 10 '.

Reference numeral 11 denotes an elliptical sliding hole 12 formed in the central portion, into which the protruding portion 5 is slidably fitted, and a square shape having the same required dimension inside from each adjacent side. Heads 1 of bolts 13 for fixing the hauling material, which are cut in four places
4 is provided with a bolt recess 15 for non-rotatably fitting,
A square plate-shaped sliding lower plate 16 having the same area as that of the fixed plate 1, and an elliptical lid formed in the center portion, which is larger than the sliding hole 12 and overlaps with the sliding hole 12 in a similar shape. Hole 17 and
A square plate-like slide having the same area as the slide lower plate 16 provided with a through hole 18 for the bolt, which is formed at a position where the four bolts 13 fitted in the bolt recess 15 are inserted. Upper plate 1
9 is a sliding plate. The sliding plate 11 slides the bolt 13 by fitting the head 14 into the bolt recess 15 and sliding the lower plate 1.
6 and then set each bolt 13 ... to each through hole 18
, And the upper sliding plate 19 is superposed on the lower sliding plate 16, and the two are fixed by an appropriate method.

Reference numeral 20 is a lid which is fitted in the lid hole 17 and fixed with a screw through the screw hole 4 of the protruding portion 5, and 21 is a top plate including the fixed plate 1 and the sliding plate 11.

As shown in FIG. 4, the top plate 21 horizontally cuts the tip of the H-shaped steel 2 of the stage pile, and then the central fixing portion 9
A web 2'is inserted between the inner fixing portions 10 and 10 'so that the inner fixing portions 10 and 10' are inscribed in both flanges 2 "and 2" of the H-shaped steel 2 and placed on the top portion of the H-shaped steel 2, and the central fixing portion 9 Tighten the bolts 22 of both bolt holding plates 7 and 7, and further fix the inner fixing portion 1
After fixing the fixing plate 1 to the H-shaped steel 2 by tightening the bolts 22 'of 0 and 10', and further rotating the sliding plate 11 to center it with the H-shaped steel 2 to which the large pulling material is installed. The lid 20 is fitted into the lid hole 17 and fixed to the protruding portion 5 with a screw to complete the attachment.

In this case, the top plate 21 can be easily centered by adjusting the sliding plate 11 even if the opposing stage piles on which the pulling bar is installed are not accurately centered. Since it does not require so much attention, it is extremely easy to set up.

In addition, the top plate 21 is made of H-shaped steel 2 by tightening bolts.
Since it does not require much attention to centering, it is extremely easy to attach compared to conventional welding.Because welding is not performed for attachment, even low technicians can perform work. It can be done easily.

Also, since most of the materials used for underground construction work are mostly leased ones, it is a principle to use each material repeatedly, so it is necessary to remove the top plate 2 at the time of dismantling work, The work is extremely easy, requires a few man-hours, and causes almost no damage during the work, so that it can be reused repeatedly.

In the above-described embodiment, the two bolt holding plates 7, 7 of the central fixing portion 9 facing each other have a line passing through the axis of the bolt holes 6, 6 on the line X. The purpose can be achieved if it is near the center of the web 2'of the H-shaped steel 2 in the width direction, so it is advisable to make the line passing through the axis parallel to the line X and near it.

The sliding plate 11 is composed of a sliding lower plate 16 and a sliding upper plate 19, and has a stepped sliding hole formed by superposing the sliding hole 12 and the lid hole 17 from one surface side. The through hole 18 is formed, and the recess 15 having an appropriate depth on the axis of the through hole 18 from the other surface side.
If it is cut, it may be composed of one plate.

Further, although four bolts 13 are erected on the sliding plate 11, two bolts 13 on one side in the major axis direction of the sliding hole 12 may be used depending on the purpose of use.

(Effects of the Invention) Since the present invention has the above-mentioned configuration, it has the following effects.

(1) When the stage piles are erected, it is not necessary to pay much attention to the centering, so the pile driving becomes extremely easy, and the work efficiency can be improved.

(2) Since it can be attached by tightening bolts, the attachment work is extremely easy, and the number of work steps can be significantly reduced.

(3) Since welding is not performed for mounting, even a low-technician can perform the work, and the unit cost can be reduced.

(4) Since the bolts are tightened, they can be easily attached and detached, and the man-hours required for dismantling work can be reduced.

(5) Since it does not cause damage during attachment and detachment work, it has an extremely long life and is economical.

(6) Since the stage piles can be accurately centered, the safety of the stage can be improved.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a fixed plate, FIG. 2 is a sliding plate, FIG. 3 is a top plate, and FIG. Is a plan view, and each (b) is a side view. 1 ... Fixing plate, 2 ... H-shaped steel, 2 '... Web 2 "... Flange, 3 ... Substrate, 5 ... Projection part 6 ... Bolt hole, 7 ... Bolt holding plate 8, 8', 8 ", 8 ... Side, 11 ... Sliding plate 12 ... Sliding hole, 13 ... Bolt, 14 ... Head 15 ... Bolt recess, 16 ... Sliding lower plate 17 ... Lid Hole, 18 ... Through hole, 19 ... Sliding upper plate 21 ... Top plate X, Y ... Straight line, C ... Substrate center

Claims (2)

[Scope of utility model registration request] 1. A square plate-shaped substrate having an area substantially the same as the surrounding area of the H-shaped steel cross section of a stage pile, and a cylindrical protrusion is provided at the center of one surface of the substrate, and a bolt hole is provided near the center of the other surface. The bolt holding plates having the above are opposed to each other, and are projected so as to be parallel to a straight line which passes through the center of the substrate and are orthogonal to both sides opposite to each other and to hold a required gap, and at the four corners, inside the same required gap from each side. A fixing plate having the bolt holding plate projecting on a straight line orthogonal to the straight line; and an elliptical sliding hole for slidably fitting the projecting part bored in the central part, A top plate characterized by comprising a sliding plate having the same shape as the fixing plate in which bolts for tightening a non-rotatably fixed pulling material are erected at a plurality of positions inwardly of a required dimension from the side edge. . 2. An elliptical sliding hole into which a projecting portion bored in the center is fitted, and a head of a bolt cut into a plurality of places with the same required inner side from each side. A sliding lower plate having a bolt recess for non-rotatably fitting; and a lid hole that is larger than the sliding hole formed in the center and overlaps in a shape similar to that of the sliding hole, and the bolt is inserted therethrough. The top plate according to claim 1, characterized in that a sliding plate composed of a sliding upper plate having a through hole formed therein is used.