JP5380274B2 - Extension member of a jig for fixing a guide rod and a jig for fixing a guide rod using the extension member - Google Patents

Description

  The present invention relates to an extension member of a guide rod fixing jig for fixing a guide rod inserted into a hollow column such as a concrete electric pole or a steel pipe column to the central axis in the hollow column, and the extension member The guide rod fixing jig using the guide rod is more specifically, the length of the plurality of arm portions constituting the guide rod fixing jig is adjusted to fix each arm portion so as to fit the inner diameter of the hollow column. The present invention relates to an extension member attached between a long arm portion and an extendable arm portion, and a guide bar fixing jig using the extension member.

  A concrete electric pole is usually a cylindrical hollow pole whose outer peripheral portion is made of reinforcing steel and concrete, and the inside is hollow, that is, hollow. In order to reinforce such a hollow concrete utility pole, a plurality of rod-shaped members are inserted into the pole, and then, for example, pea gravel or crushed stone is introduced into the gaps between these rod-shaped members, and further mortar, concrete, etc. Sequentially added and reinforced.

  The plurality of rod-shaped members are inserted into the electric pole using a hollow pole reinforcing material arrangement adjusting jig or the like so that they can be arranged evenly in the electric pole in order to reinforce the concrete electric pole. In such a hollow column reinforcing material arrangement adjusting jig, a guide hole is formed at the center so that the center thereof is arranged on the central axis of the hollow column, and the guide rod is inserted into the guide hole.

  This guide bar needs to be arranged at the center of a hollow column such as a concrete electric pole, but a guide rod fixing jig is used to arrange the guide rod at the center of the hollow column (Patent Document 1). reference). In this guide rod fixing jig, a plurality of extendable arm portions extend from the central portion where the center hole through which the guide rod is inserted is formed in the middle toward the inner peripheral surface of the hollow column at an equal angle. When the plurality of arm portions are in contact with the inner peripheral surface of the hollow column, that is, the plurality of arm portions having the same length are extended and contacted with the inner peripheral surface of the hollow column, and are stretched with the same length. The portion is set so as to be positioned at the center of the hollow column, and as a result, a guide rod inserted through the central hole of the central portion is set at the center of the hollow column.

Japanese Patent Application No. 2009-103229

  The conventional guide bar fixing jig described above has a problem that it cannot be used for a hollow column having a large diameter because the lengths of a plurality of arm portions are fixed, and various diameters are also available. In order to be able to be used for various hollow columns, it is necessary to create multiple types of guide bar fixing jigs with sizes suitable for various diameters, which is inefficient and stocks multiple types. There is a problem that it must be manufactured urgently if it is not economical and there is no jig for fixing a guide bar of an appropriate size in this stock.

  The present invention has been made in view of the above, and an object of the present invention is to use an extension member that constitutes a guide rod fixing jig that can be applied to a hollow column of any diameter, and the extension member. The object is to provide a jig for fixing a guide bar.

In order to achieve the above-mentioned object, the extension member of the jig for fixing the guide rod according to claim 1 is inserted into the guide rod for fixing the guide rod inserted into the hollow column to the central axis of the hollow column. A guide rod having a plurality of arms with equal lengths extending from the central portion disposed in the center of the hollow column to the inner peripheral surface of the hollow column at an equal angle. An extension member of an arm portion of a jig for fixing a guide rod attached between a fixed long arm portion and an extendable arm portion constituting the arm portion in order to extend the arm portion in the fixing jig, and a base end portion Is connected to the distal end portion of the fixed long arm portion that is attached to the central portion and that faces the inner peripheral surface of the hollow column, and the distal end that is formed integrally with the connecting portion and that faces the inner peripheral surface of the hollow column Has a fork formed by branching into two forks, The possible arms and summarized in that and a mounting portion for holding scissors telescopically within the fork.

In the extension member of the guide rod fixing jig according to claim 1, the connecting portion of the extension member is connected to the tip of the fixed long arm portion, and the extendable arm portion is branched into two in the fork shape at the tip of the mounting portion. an extension member for pinching telescopically held in the fork portion formed by attach between the fixed-length arms and extendable arm part, to extend configured to be able to arm portions of the guide rod fixing jig, The length of the arm of the guide rod fixing jig can be lengthened or adjusted by attaching the extension member, and it can be applied to hollow pillars of any diameter with one type of guide rod fixing jig. It is no longer necessary to create multiple types of jigs for fixing guide rods of various sizes suitable for various diameters, which is efficient and eliminates the need for multiple types of stock, which can also be economical. In addition, guide rods of an appropriate size in stock If there is no jig for use, even if it is not urgently manufactured, by connecting several extension members, a jig for fixing a guide rod having an arm part with an optimal length matching the diameter of the hollow column is created. be able to.

  The extension member of the guide rod fixing jig according to claim 2, wherein the attachment portion is formed in the elongated portion elongated along the direction toward the inner peripheral surface of the hollow column and the inner peripheral surface of the hollow column. And an elongated hole that enables an extension operation toward the inner peripheral surface of the hollow column of the extendable arm part, and the extendable arm part can be expanded and contracted with respect to the attachment part through the elongated hole. The gist is that it can be extended.

  In the extension member of the jig for fixing the guide rod according to claim 2, the attachment portion is formed in an elongated portion in which an elongated hole is formed, and the extendable arm portion can be expanded and contracted with respect to the attachment portion through the elongated hole. Can be stretched.

The extension member of the guide rod fixing jig according to claim 3 is characterized in that the attachment portion has a hook portion protruding upward on an end portion close to the connection portion.

The extension member of the jig for fixing the guide rod according to claim 3 has a hook portion protruding upward on the end portion near the connecting portion of the mounting portion. Even a rubber band can be used as a degeneration biasing means.

5. A guide rod fixing jig using the extension member according to claim 4, wherein the guide rod inserted into the hollow column is disposed at an equal angle from the center of the hollow column in order to dispose the guide rod at the center position of the hollow column. A guide rod fixing jig having a plurality of arm portions having equal lengths toward the inner peripheral surface of the guide rod, wherein the arm portion is provided at a central portion where a central hole through which the guide rod is inserted is formed in the middle. A fixed long arm portion, a distal end portion that is configured to be extendable and contractible, and an extensible arm portion that is urged so as to extend toward the inner peripheral surface of the hollow column, the fixed long arm portion, and the The gist of the present invention is to have an extension member that is inserted between the extendable arm portion and extends the entire length of the arm member.

In the guide rod fixing jig using the extension member according to claim 4 , the extension member is attached between the fixed long arm portion and the extendable arm portion to constitute the arm portion of the guide rod fixing jig. Therefore, the length of the arm part of the guide rod fixing jig can be lengthened or adjusted by attaching the extension member, and the hollow column of any diameter can be adjusted with one type of guide rod fixing jig. It is no longer necessary to create multiple types of guide bar fixing jigs of various sizes suitable for various diameters, which is efficient and eliminates the need for multiple types of stocks, thus making it more economical. If there is no guide rod fixing jig of the appropriate size in stock, it is possible to connect several extension members to meet the diameter of the hollow column without urgent manufacturing. A jig for fixing a guide bar with a flexible arm It can be formed.

The guide rod fixing jig using the extension member according to claim 5 is characterized in that a plurality of extension members attached between the fixed long arm portion and the extendable arm portion are used according to the inner diameter of the hollow column. And

In the guide rod fixing jig using the extension member according to claim 5 , since a plurality of extension members can be used according to the inner diameter of the hollow column, the arm portion of the guide rod fixing jig depends on the number of extension members. Can be adjusted to be long or variable, and can be applied to hollow columns of any diameter.

  According to the present invention, the connecting portion of the extension member is connected to the tip of the fixed long arm portion, and the tip of the attachment portion of the extension member is attached to the extendable arm portion. The arm of the guide rod fixing jig can be extended by attaching an extension member between them, so the length of the arm of the guide rod fixing jig can be increased or adjusted by attaching the extension member. It can be applied to hollow pillars of any diameter with one type of guide rod fixing jig, and a plurality of types of guide rod fixing jigs of various sizes can be prepared. Eliminating the need for multiple types of stock, eliminating the need for multiple types of stock, making it more economical, and if there is no appropriately sized guide bar fixing jig in stock, do not urgently manufacture Even connect some extension members And it makes it possible to create a guide rod fixed jig having an optimal arms fit diameter of the hollow column.

It is a perspective view which shows the extension member concerning one Example of this invention. It is a perspective view which connects and shows two extension members shown in FIG. It is a perspective view which shows the arm part of the jig for fixing a guide rod comprised using the two extending members connected as shown in FIG. As shown in FIG. 3, a state where the guide bar is set at the center of a hollow column such as a concrete electric pole using a guide bar fixing jig constituted by using four arm portions extended using extension members. It is a perspective view shown. FIG. 5 is a perspective view showing a state where the elastic arm part is retracted by hooking a rubber band between the hook part of the fixed long arm part and the hook part of the extendable arm part in the guide rod fixing jig shown in FIG. 4. . It is a perspective view which shows the extension member of the jig for guide bar fixation concerning other embodiment of this invention. It is the same perspective view as FIG. 3 which shows the arm part of the jig | tool for fixing a guide rod comprised by connecting two extension members shown in FIG. It is the same perspective view as FIG. 5 which shows a mode that a guide rod is set to the center of hollow pillars, such as a concrete electric pole, using the guide rod fixing jig comprised using four arm parts shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an extension member according to an embodiment of the present invention. An extension member 100 shown in FIG. 1 includes a connecting portion 1 and a mounting portion 3. The connection part 1 is comprised by a slightly thick plate-shaped member, and the long hole 1a is formed along the longitudinal direction in the middle. The connecting portion 1 is attached to a fixed long arm portion of an arm portion of a guide rod fixing jig (not shown) using the long hole 1a, but can also be attached to the attaching portion 3 of another extension member 100.

  The attachment portion 3 is formed at a fork portion 3a having a tip, that is, a tip on the side where the connecting portion 1 is not provided, branched into two forks, and the middle of the two plate-like members constituting the fork 3a. Are formed with elongated holes 3b along the longitudinal direction. In addition, the attachment portion 3 has two holes 3c and 3d formed at the other end following the connecting portion 1, and one of these holes 3c and 3d serves as an extension biasing means as will be described later. It is for attaching the end of the wire compression spring which comprises.

  The extension member 100 configured as shown in FIG. 1 can connect two extension members 100a and 100b as shown in FIG. That is, by fitting the connecting portion 1 of one extension member 100a to the fork portion 3a of the attachment portion 3 of the other extension member 100b, the two can be connected and the entire length can be increased. Further, after connecting the connecting portion 1 of one extension member to the fork portion 3a of the attachment portion 3 of the other extension member in this way, the bolts or the like are inserted into the long holes 1a and 3b of both the connected portions. It can fix so that both may not remove | deviate by tightening through. In FIG. 2, the case where two extension members 100 are connected is shown and described. However, the number of extension members 100 to be connected is not limited to two, and three or more extension members 100 may be used in the same manner.

  FIG. 3 is a perspective view showing an arm portion of a guide rod fixing jig configured using two extending members 100a and 100b connected as shown in FIG. The arm portion 30 shown in the figure includes a fixed long arm portion 31 attached to the central portion of the guide rod fixing jig, an extendable and retractable arm portion 33 that constitutes an extensible tip of the arm portion, and the fixed long arm portion 31. And two extendable members 100a and 100b attached between the arm part 33 and the extendable arm part 33. The two extended members 100a and 100b connected to each other are fixed by two screws 51 and 53 that pass through the elongated hole 3b of the elongated member 100b and the elongated hole 1a of the elongated member 100a.

  More specifically, among the two extension members 100a and 100b connected as described above, the expansion and contraction formed by overlapping two members of the same shape on the fork portion 3a of the attachment portion 3 of one extension member 100a. The movable arm portion 33 is attached so as to be fitted, and a screw 41 is attached so as to penetrate both the elongated hole 33a of the extendable arm portion 33 and the elongated hole 3b of the attachment portion 3 of the extension member 100a. The arm part 33 which can be expanded and contracted with respect to the base axis is held so as to extend and contract along the long holes 33a and 3b in the direction toward the inner peripheral surface of the hollow column. In addition, a hole (not shown) is formed at the other end opposite to the tip of the extendable arm portion 33 facing the inner peripheral surface of the hollow column, and the elongated hole 3b of the extension member 100a is formed in this hole. The screw 43 which penetrated is attached, ie, this screw 43 penetrates 3b of the extending member 100a, and is fixedly attached to the hole of the other end of the extendable arm part 33.

  The screw 43 is attached with one end of a wire compression spring 45 that constitutes an extension biasing means. The other end of the wire compression spring 45 is attached to a screw 47 attached to one hole 3c (FIG. 2) of the two holes 3c and 3d formed at the other end of the attachment portion 3 of the extension member 100a. The retractable arm portion 33 is attached and urged by the extension force of the wire compression spring 45 so as to extend toward the inner peripheral surface of the hollow column.

  In addition, the fixed long arm portion 31 has a fork portion 31a formed by bifurcating a free tip portion on the opposite side to the base end portion attached to the center portion of the hollow column into two fork-like portions. The connecting portion 1 is fitted, and two of the elongated holes 1a (FIG. 2) of the fitted connecting portion 1 and the elongated holes 31b formed in the fork portion 31a of the fixed long arm portion 31 are penetrated. The screws 55 and 57 are attached, whereby the extension member 100 b is fixed to the fixed long arm portion 31. At the base end portion of the fixed long arm portion 31, a detachable mounting convex portion 31 c for detachably mounting on the central portion of the guide rod fixing jig is formed.

  Further, as shown in FIG. 3, a hooking portion 31 d is formed on the base end portion of the fixed long arm portion 31 so as to protrude upward, and the hooking portion is also formed on the other end of the extendable arm portion 33. 33d is formed so as to protrude upward. When a rubber band which is a contraction biasing means is hooked between the two hooking portions 31d and the hooking portion 33d, the extendable arm portion 33 becomes a wire compression spring. The arm 30 is shortened as a whole by being pulled toward the fixed long arm 31 against the extension force 45 and retracting. When the elastic band 33 is cut in the state where the elastic band 33 is retracted by the rubber band and the arm 30 is shortened as a whole as described above, the elastic band 33 becomes a part of the wire compression spring 45. The distal end of the extendable arm portion 33 is brought into contact with the inner peripheral surface of the hollow column and is stretched.

  FIG. 4 shows a concrete structure such as a guide pole 61 using a guide bar fixing jig 200 formed by using four arm portions 30 extended using extension members 100a and 100b as shown in FIG. It is a perspective view which shows a mode that it set to the center of the hollow pillar 63 of this.

  As shown in FIG. 4, the guide rod fixing jig 200 has a circular central portion 71, and the guide rod 61 is inserted into the central hole 71 a of the central portion 71. In addition, four arm portions 30 are detachably attached to the central portion 71 at equal angles in the circumferential direction via respective detachable attachment convex portions 31c.

  When the guide rod 61 is inserted into the hollow hole 63 through the center hole 71a of the central portion 71 of the guide rod fixing jig 200 configured as described above, the guide rod 61 is moved from the central portion 71 of the guide rod fixing jig 200 and the like. The telescopic arm portion 33 at the tip of the four arm portions 30 facing the inner peripheral surface of the hollow column 63 at an angle is extended by the extension force of the wire compression spring 45 and is in contact with the inner peripheral surface of the hollow column 63. In order to stretch, that is, the guide rod 61 is pressed against the center of the hollow column 63 by the tension on the inner peripheral surface of the hollow column 63 by the extension force of the wire compression spring 45 from four directions by the four arm portions 30. Therefore, the guide bar 61 is set at the center of the hollow column 63.

  Furthermore, it demonstrates in detail with reference to FIG. As shown in FIG. 4, in order to insert the guide rod fixing jig 200 having the four arm portions 30 into the hollow column 63 while inserting the guide rod 61 through the central portion 71, first, as shown in FIG. Further, a rubber band 81 which is a depressing urging means is hooked between the hook portion 31 d of the fixed long arm portion 31 of each arm portion 30 and the hook portion 33 d of the extendable arm portion 33. When the rubber band 81 is hooked in this way, the extendable arm part 33 at the tip of each arm part 30 is against the extension force of the wire compression spring 45 in the direction toward the central part 71 of the guide rod fixing jig 200. That is, it moves in the direction shown by the arrow 300 and contracts, and each arm part 30 becomes short.

  When the arm portions 30 are shortened in this way, even if the guide rod fixing jig 200 is inserted into the hollow column 63, the tip of each arm portion 30 does not hit the inner peripheral surface of the hollow column 63. The hollow rod 63 can be moved to a desired position while the guide rod 61 is inserted into the central hole 71 a of the central portion 71 of the jig 200. Then, all the rubber bands 81 hooked on the hooks 31d and 33d of each arm 30 are cut with a scissors or the like. When the rubber band 81 is cut, each of the arm portions 30 is stretched by the extension force of the wire compression spring 45 having one end attached to the extensible arm portion 33 at the tip of each arm portion 30. 4 extends toward the surface, that is, in the direction indicated by the arrow 400 in FIG. 4, and the tip abuts against the inner peripheral surface of the hollow column 63 as shown in FIG. 4, so that the guide rod 61 is hollow as described above. The center of the column 63 is set.

  As described above, by using the extension member 100 for the arm portion 30 constituting the guide rod fixing jig 200, the length of the arm portion 30 can be increased or made variable, thereby fixing one type of guide rod. It can be applied to hollow pillars of any diameter, and it is no longer necessary to create multiple types of guide bar fixing jigs with sizes suitable for various diameters. There is no need for multiple types of inventory, which can be economical, and if there are no guide bar fixing jigs of an appropriate size in the inventory, the number of extension members 100 can be increased without urgent manufacturing. By connecting these, it is possible to create a guide bar fixing jig having an arm portion having an optimal length corresponding to the diameter of the hollow column.

  In the above embodiment, the case where two extension members 100 are connected is shown and described. However, the connection of the extension members is not limited to two, but may be three or more, or conversely, may be one. In the case of a hollow column having a small diameter, the extendable arm portion 33 may be merely fitted to the fork portion 31a of the fixed long arm portion 31 without using an extension member.

  FIG. 6 is a perspective view showing an extension member of a guide rod fixing jig according to another embodiment of the present invention. The extension member 101 shown in the figure is different from the extension member 100 shown in FIG. 1 in that a hook portion 91 protruding on the other end of the attachment portion 3 is provided. The same members as those of the extension member 100 are denoted by the same reference numerals.

  FIG. 7 is the same perspective view as FIG. 3 showing an arm portion of a guide rod fixing jig configured by connecting two extension members 101 shown in FIG. 7 except that the extension member is changed from the extension member 100 (100a, 100b) without the hook 91 to the two extension members 101a, 101b with the hook 91. 3 is the same as the configuration of the arm portion 30 shown in FIG. 3, and the same components are denoted by the same reference numerals.

  FIG. 8 is a diagram showing a state in which the guide bar 61 is set at the center of a hollow pole 63 such as a concrete electric pole using the guide bar fixing jig 201 configured by using the four arm portions 130 shown in FIG. It is the same perspective view.

  In FIG. 8, unlike the hooking portion 31 d of the fixed long arm portion 31 in FIG. 5, the hooking portion 91 of one extension member 101 b of each arm portion 130 and the hooking portion 33 d of the extendable arm portion 33. Rubber bands 93 serving as degeneration urging means are respectively hooked therebetween. By hooking the rubber band 93 in this manner, the extendable arm portion 33 at the tip of each arm portion 130 can resist the extension force of the wire compression spring 45 and guide rod fixing jig 201 as in the case of FIG. The arm portion 130 is shortened by moving in the direction toward the central portion 71 of the arm portion and contracting.

  After each arm portion 130 is shortened in this way, the guide rod 61 is moved through the hollow hole 63 while being inserted into the central hole 71a of the central portion 71 of the guide rod fixing jig 201, and then each of the arm portions 130 is moved to a desired position. When the rubber band 93 hooked on the hook portions 91 and 33 d of the arm portion 130 is cut with a scissors or the like, each arm portion 130 can be expanded and contracted by the extension force of the wire-type compression spring 45 so that the arm portion 33 can be expanded. The tip of the guide rod 61 comes into contact with the inner peripheral surface of the hollow column 63, whereby the guide rod 61 is set at the center of the hollow column 63.

  As described above, the hook portion 91 provided on the extension member 100 is used in place of the hook portion 31d of the fixed long arm portion 31, and the hook portion 91 and the hook portion 33d of the extendable arm portion 33 are used. The diameter of the hollow pillar 63 is very large by hooking the rubber band 93 between them, so that the length between the hook portion 31d of the fixed long arm portion 31 and the hook portion 33d of the extendable arm portion 33 is also considerable. When it becomes long and it is not easy to hook a normal rubber band, using the hook portion 91 of the extension member 100, between the hook portion 91 and the hook portion 33d of the extendable arm portion 33, By hooking the rubber band 93 on the hook, the length between the hook portions is shortened, and the rubber band can be easily hooked.

1 Connecting part
3 Mounting portion 3a Fork portion 3b Long holes 30, 130 Arm portion 31 Fixed long arm portion 31a Fork portion 31d Hook portion 33 Extendable arm portion 33a Long hole 33d Hook portion 45 Wire compression spring 61 Guide rod 63 Hollow column 71 Center part 71a Center hole 81, 93 Rubber band 91 Hook part 100, 100a, 100b, 101 Extension member 200, 201 Guide rod fixing jig

Claims (5)

A center hole is formed in the center for the guide rod inserted into the hollow column to be fixedly set to the central axis of the hollow column, and the center hole disposed at the center of the hollow column is formed at the center. A fixed long arm portion that constitutes an arm portion for extending the arm portion in a jig for fixing a guide rod having a plurality of arm portions that have an equal length extending toward the inner peripheral surface of the hollow column at an angle. An extension member of the arm portion of the jig for fixing the guide rod attached between the extendable arm portion,
A coupling portion coupled to a distal end portion facing the inner peripheral surface of the hollow column of the fixed long arm portion, the base end portion being attached to the central portion;
It has a fork part that is formed integrally with this connecting part, and the tip toward the inner peripheral surface of the hollow column is branched into two like a fork, and can extend and contract by sandwiching the extendable arm part in the fork part An extension member of a jig for fixing a guide rod, characterized by having an attachment portion to be held on the guide rod. The attachment portion is formed in the elongated portion elongated along the direction toward the inner peripheral surface of the hollow column and the elongated peripheral portion toward the inner peripheral surface of the hollow column, and on the inner peripheral surface of the hollow column of the extendable arm portion 2. An elongated hole that enables an extending operation toward the direction, and the extendable arm portion is attached to the attachment portion so as to be extendable and retractable through the elongated hole. An extension member of the guide rod fixing jig according to the description. The mounting portion, the guide rod extension piece fixing jig according to claim 1 or 2, characterized in that it has an engaging portion that protrudes upward on the end portion of the connecting portion closer. A guide rod having a plurality of arm portions having equal lengths from the central portion of the hollow column toward the inner peripheral surface of the hollow column at an equal angle in order to arrange the guide rod inserted into the hollow column at the center position of the hollow column A fixing jig,
The arm is
A fixed long arm portion provided at a central portion where a central hole through which the guide rod is inserted is formed in the middle;
An extensible arm portion that is configured to be extensible and extensible so that the tip portion extends toward the inner peripheral surface of the hollow column;
A connecting portion that is inserted between the fixed long arm portion and the extendable arm portion and is connected to a tip portion that faces the inner peripheral surface of the hollow column of the fixed long arm portion, and is formed integrally with the connecting portion. A fork portion having a fork-like bifurcated tip toward the inner peripheral surface of the hollow column, and a mounting portion for holding the extendable arm portion in the fork portion so as to be extendable and retractable. And a guide rod fixing jig having an extension member extending the entire length of the arm portion . The guide rod fixing jig according to claim 4 , wherein a plurality of extension members provided between the fixed long arm portion and the extendable arm portion are used according to an inner diameter of the hollow column.

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