JP2006207286A - Spiral pile with centering function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spiral pile with a centering adjusting function to adjust the verticality of a pole to be erected on a hollow wood screw type spiral pile to be screwed into the ground by a simple structure and a simple means. <P>SOLUTION: The spiral pile with the centering adjusting function is formed like a hollow wood screw, and has a screw S spirally extending upward from a conical portion 11 at a lower edge thereof. Then the spiral pile has an inclined step portion 13 at a location above the screw S to expand the diameter thereof, and a diameter-expanded portion 14 is opened with a flange F placed at an upper edge thereof in one body. Further the flange F has arched slots 16 formed therein at regularly divided locations along a circle concentric with the flange F, and a receiving seat 15 for receiving a lower edge of the pole P to be erected is arranged on an internal bottom of the diameter-expanded portion 14. Furthermore, a pole support plate 22 is placed on an upper surface of the flange F. The pole support plate 22 has pole P through holes 21 which are formed at the center thereof, and slots 17 which are formed at locations corresponding to the arched slots 16 formed in the flange F, and extend along central lines. Then bolts and nuts 23 are screwed into the arched slots 16 formed in the flange F and the slots 17 formed in the pole support plate 22, respectively, to fasten the flange F and the pole support plate 22 to each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a spiral pile with a centering function in which a pole to be erected is inserted into a hollow wood screw-like spiral pile screwed into the ground and its vertical state can be adjusted.

  The present applicant has proposed a spiral pile to be screwed into the ground in Japanese Patent Application No. 2005-2884 (Japanese Patent Application No. 2004-273678).

  In the above proposal, the structure of a hollow wood screw-like spiral pile screwed into the ground, a jig for screwing the spiral pile, and a pole to be erected on the spiral pile screwed into the ground are inserted, and its vertical state is This is related to jigs for adjustment. Especially, the means to adjust the vertical state is well thought out, but the adjustment operation is complicated due to too much thought, there are many parts and members for adjustment, and the material cost The problem remained in terms of surface and convenience of work.

  In fact, when he introduced the customer to the proposed spiral pile with the function to adjust the vertical state, he expressed his opinion that he wanted something more simple and easy to adjust.

  In view of the above situation, the present invention provides a spiral pile having a centering adjustment function capable of adjusting the vertical state of a pole to be erected on a hollow wood screw-like spiral pile screwed into the ground with a simple structure and means. It is an issue to provide.

  In order to solve the above-mentioned problems, the present invention is a hollow wood screw shape, a screw is formed upward from a conical portion at the lower end, an inclined step portion is formed at the upper portion of the screw, and the large diameter portion is formed. A flange is integrally provided at the upper end of the flange, an arc-shaped elongated hole is provided at an equal position on the concentric circle of the flange, and a receiving seat for receiving the lower end of the pole to be erected on the inner bottom of the large diameter portion is provided. A pole support plate provided with a long hole along the center line is provided at a position corresponding to the arc-shaped long hole provided in the flange on the upper surface of the flange. Bolts and nuts are inserted and fastened over the arc-shaped elongated holes and the elongated holes of the pole support plate.

  Moreover, it is a hollow wood screw, a screw is formed upward from the conical part at the lower end, an inclined step is formed at the upper part of the screw to increase the diameter, and an annular rib is formed at the upper end of the large diameter part. A female screw or a fool hole should be provided at a concentric position on the concentric circle of the washer that opens, loosely fits into the large diameter portion and is addressed to the lower side of the annular rib, and should stand on the inner bottom of the large diameter portion A receiving seat for receiving the lower end of the pole is provided, a through hole of the pole is provided in the center on the upper surface of the annular rib, and a long hole along the center line is provided at a position corresponding to the female screw or the fool hole provided in the washer. A pole support plate is placed, and bolts or bolts and nuts are inserted and tightened over the female screw or the hole of the washer and the long hole of the pole support plate.

  According to the present invention configured as described above, the washer standing on the lower side of the flange or the annular rib on the spiral pile and the pole support plate are erected only by sliding and adjusting the circumferential direction and the center line direction. The vertical state of the pole to be adjusted can be easily adjusted, and the number of members and parts is small, so that the economy can be greatly improved.

  Next, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the spiral pile 10 has a hollow wood screw shape, a screw S is formed upward from a conical portion 11 at the lower end, and an inclined step portion 13 is formed on the upper portion of the screw S to have a large diameter. The flange F is integrally provided by opening or screwing (not shown) or the like at the upper end of the large-diameter portion 14 and opened.

  The flange F is provided with an arc-shaped elongated hole 16 at an equidistant position on a concentric circle, and a receiving seat 15 for receiving the lower ends of two poles P to be erected is provided at the inner bottom of the large-diameter portion 14. ing. The cross section of the receiving seat 15 is a spectacle hole for receiving two poles P. However, when there is one pole, it becomes a circular hole.

  The upper surface of the flange F is provided with two through-holes 21 through which two poles P penetrate, and the length along the center line at a position corresponding to the arc-shaped long hole 16 provided in the flange F. A pole support plate 22 provided with a hole 17 is placed, and bolts and nuts 23 are inserted and fastened over the arcuate long hole 16 of the flange F and the long hole 17 of the pole support plate 22.

  Here, when there is one pole P to be erected, there is one through hole 21 in the pole support plate 22, and the pole receiving seat 15 is also one hole.

  When the pole P is erected on the spiral pile 10 screwed into the ground, first, the pole P is passed through the through hole 21 of the pole support plate 22, and the pole seat 15 is attached to the lower end of the pole P. The seat 15 is rotatably inserted into the inner bottom portion of the spiral pile 10, and the pole support plate 22 is placed on the flange of the spiral pile 10 with the arc-shaped long hole 16 and the long hole 17 being matched.

  Next, a bolt 23a is inserted over the arc-shaped elongated hole 16 and the elongated hole 17 of the pole support plate 22, and a nut 23b (see FIG. 3) is screwed from below to temporarily fix it. The vertical state is confirmed by applying a container or swinging down and adjusting the vertical state by shifting the pole support plate 22 in a required direction.

  Also, as shown in FIG. 5, when setting up the pole P of the tram fence T, care must be taken not to break the vertical state because the two poles P must be aligned in the direction of installation of the tram fence F. Then, the pole support plate 22 is adjusted by turning it in the circumferential direction along the arc-shaped elongated hole 17, and when the adjustment is completed, the bolt and nut 23 are completely tightened to complete the adjustment. When the adjustment range of the arc-shaped long hole 16 is exceeded, the bolts and nuts 23 are removed, the position is changed, and the adjustment is performed again.

  As shown in FIG. 3, since the main-body part of the spiral pile 10 is the same as Example 1, description is abbreviate | omitted. However, the difference is that an annular rib 18 is formed and opened at the upper end of the large-diameter portion 14.

  A washer 19 is loosely fitted to the lower large-diameter portion 14 of the annular rib 18 so as to be addressed from the lower side, and a fool hole 24 (even with a female screw) is formed at an evenly divided position on the concentric circle of the washer 19. And a receiving seat 15 (see FIG. 1) for receiving the lower end of the pole to be erected on the inner bottom of the large-diameter portion 14, and a through hole 21 of the pole P at the center on the upper surface of the annular rib 18. The pole support plate 22 provided with the long hole 17 along the center line is placed at a position corresponding to the fool hole 24 provided in the washer 19, and the flaw hole 24 of the washer and the pole support plate 22 are placed. The bolt 23a is inserted over the long hole 17 and the nut 23b is screwed and fastened.

  Here, when there is one pole to be erected, there is one through hole 21 in the pole support plate 22, and the pole seat 15 is also one hole.

  When the pole P is erected on the spiral pile 10 screwed into the ground, first, the pole P is passed through the through hole 21 of the pole support plate 22, and the pole receiving seat 15 (see FIG. 1) is provided at the lower end of the pole P. , And the receiving seat 15 is rotatably inserted into the inner bottom portion of the spiral pile 10, and the pole support plate 22 is placed on the annular rib 18 with the fool holes 24 and the long holes 17 aligned.

  Next, before the screw pile 10 is screwed into the ground, the washer 19 loosely fitted in advance to the large-diameter portion 14 is lifted so that the elongated hole 17 of the pole support plate 22 and the washer hole 24 of the washer are aligned, Bolts and nuts 23 are inserted and temporarily fixed over the long holes 17 and the fool holes 24. Here, a screw screw is erected directly below the washer 19, but this is for stopping the washer 19 from being inadvertently lowered.

  In this state, the pole support plate 22 can be slid in the center line direction, and the washer 19 can be rotated 360 degrees in the circumferential direction around the spiral pile 10. Therefore, the pole P inserted into the spiral pile 10 can be adjusted in the vertical state and the orientation of the two poles.

  In this state, the vertical level is adjusted by applying a level or by swinging down and checking the vertical state to shift the pole support plate 22 in the required direction.

  Also, as shown in FIG. 5, when setting up the pole P of the tram fence T, care must be taken not to break the vertical state because the two poles P must be aligned in the direction of installation of the tram fence F. While adjusting the pole support plate 22 together with the washer 19, the bolt and nut 23 are completely tightened and the adjustment is completed.

  FIG. 4 shows three specific examples of the pole support plate 22. FIG. 9A has been described in the above embodiments. FIG. 5B shows a shape in which a portion provided with a long hole is left and other portions are cut off. FIG. 2C shows the long hole inclined at 45 degrees with respect to the center line.

  As described above, according to the present invention, the washer that is loosely fitted to the flange or the annular rib on the spiral pile and the pole support plate are slidably adjusted in the circumferential direction and the center line direction. The vertical state of the pole to be erected can be adjusted by itself, and the number of members / parts is small and the economic efficiency can be greatly improved.

1 is a partially cutaway front view of Embodiment 1 according to the present invention. The principal part expansion perspective view of Example 1 The principal part expansion perspective view of Example 2 Specific examples of pole support plates are as follows: (a) No. 1, (b) No. 2, (c) No. 3 The tramark fence to which the spiral pile of the present invention is applied

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Spiral pile 11 Conical part 12 Through-hole 13 Inclined step part 14 Large-diameter part 15 Receiving seat 16 Arc-shaped long hole 17 Long hole (pole support plate)
18 annular rib 19 washer 20 screw screw 21 through hole 22 pole support plate 23 bolt / nut 23a bolt 23b nut 24 fool hole F flange P pole S screw T tramark fence

Claims (2)

  A hollow wood screw, a screw is formed upward from the conical part at the lower end, an inclined step is formed at the upper part of the screw to increase the diameter, and a flange is integrally provided at the upper end of the large diameter part to open. An arc-shaped long hole is provided at an equidistant position on the concentric circle of the flange, a receiving seat for receiving the lower end of the pole to be erected on the inner bottom of the large-diameter portion is provided, A pole support plate provided with a long hole along the center line is placed at a position corresponding to the arc-shaped long hole provided in the flange by providing a through hole, and the arc-shaped long hole of the flange and the pole support plate A spiral pile with a centering function, which is made by inserting bolts and nuts over long holes and fastening them.   It is a hollow wood screw, a screw is formed upward from the conical part at the lower end, an inclined step is formed at the upper part of the screw to increase the diameter, and an annular rib is formed at the upper end of the large diameter part to open. , A female screw or a fool hole is provided in a concentric position on a concentric circle of a washer that is loosely fitted to the large-diameter portion and is directed to the lower side of the annular rib, A receiving seat for receiving the lower end is provided, a through hole of a pole is provided at the center on the upper surface of the annular rib, and a long hole along the center line is provided at a position corresponding to a female screw or a fool hole provided in the washer. A spiral pile with a centering function, in which a pole support plate is placed and a bolt or bolt / nut is inserted and fastened over the female screw or fool hole of the washer and the long hole of the pole support plate.

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