JP2007186922A - Misalignment correction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To correct horizontal misalignments of upper column bodies to lower column bodies by simple operations by a worker when steel columns are constructed. <P>SOLUTION: This misalignment correction device comprises a push body 3 abutted on erection pieces E1, E2 installed continuously with the columns P1, P2 from the wall thickness direction of the erection pieces E1, E2. The horizontal displacement of the columns P1, P2 can be corrected by the forward movement of the push body 3. The misalignment correction device is formed in a screw jack structure in which the push body 3 is moved forward by the hydraulic force generated by the movement of a piston 42 by the driving of a jack 4 disposed at the rear of he push body 3 and the piston 42 is moved forward by the jack 4 through the manual rotating operation by a worker. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a misalignment correcting device, and more particularly to an improvement in a misalignment correcting device that corrects a misalignment in the horizontal direction of upper and lower column bodies when building a steel column body for constructing a structure.

  In general, the pillars constituting the structure are made vertical when they are erected, that is, when they are built, and the horizontal misalignment between the upper and lower pillars is also corrected.

  At this time, when the column body is made of a heavy steel frame, so-called human power cannot correct the misalignment. Therefore, various devices have been proposed so far that can correct the misalignment.

  Among them, for example, in the proposal disclosed in Patent Document 1, a so-called fixing bolt is provided on the lower end side of the main body, and a so-called misalignment correcting bolt is provided on the upper end side of the plate body.

  Therefore, in the proposal disclosed in Patent Document 1, the main body is fixed to the erection piece connected to the lower column body using the fixing bolt, and the misalignment correction on the upper end side of the main body is performed. Under the so-called 梃 principle, by turning the bolt for adjusting misalignment and selecting the amount of protrusion of this bolt with the bolt in contact with the erection piece connected to the upper column body It is possible to correct a horizontal misalignment between the upper and lower erection pieces, that is, between the upper and lower column bodies.

  Incidentally, in the proposal disclosed in Patent Document 1, the fixing bolt and the misalignment correction bolt are both brought into contact with the erection piece from the thickness direction of the erection piece.

  In addition, in the proposal disclosed in Patent Document 2, while the main body is connected to the erection piece connected to the upper column body in a state where the upper end is hooked, the hole opened in the lower end of the main body A long bolt-like connecting rod that passes through the hole is connected to a state where the hole drilled in the erection piece that is continuously provided in the lower column body is inserted.

  The connecting rod is connected to a hydraulic jack, and when the hydraulic jack is extended, the lower end of the main body moves so as to approach the lower erection piece and the upper and lower erection pieces, The horizontal misalignment between the upper and lower pillars is corrected.

Incidentally, in the proposal disclosed in Patent Document 2, the upper end of the main body is hooked on the erection piece from the thickness direction of the erection piece, and the long bolt-shaped connecting rod is connected to the erection piece. It is supposed to penetrate from the thickness direction of the piece.
Japanese Patent Laying-Open No. 2002-194897 (Claims Claim 1, Paragraph 0017, FIG. 1) JP 2003-82860 A (Claims Claim 1, Claim 3, Claim 4, Claim 5, FIGS. 1 and 5)

  However, there is a possibility that it is pointed out that there is the following problem in any of the proposals disclosed in Patent Document 1 and Patent Document 2 described above.

  That is, first, in the proposal disclosed in Patent Document 1, the correction of the horizontal misalignment in the upper and lower pillars depends on the rotation operation of the misalignment correcting bolt on the upper end side of the main body, that is, Since the operating force of the bolt is directly used as the amount of protrusion of the bolt, there is a problem that a large operating force is required.

  On the other hand, the proposal disclosed in Patent Document 2 has a hydraulic jack as an operation source, which is advantageous in comparison with the proposal disclosed in Patent Document 1 in that a large operating force is not required. For example, since the jack is connected under the presence of a pressure-resistant hose, there is a problem that it is likely to be inferior in transportability and handleability.

  In addition, when using a hydraulic jack as the operation source, a worker who operates the hydraulic jack installed on the work floor and a worker who checks the status of misalignment are required. There is a problem that the workability is inferior.

  The present invention has been made in view of the above-described circumstances, and the object of the present invention is to provide a horizontal space between an upper column and a lower column when a steel column is built. An object of the present invention is to provide a misalignment correcting device which can correct misalignment in a direction by a simple operation by one operator and is optimal for expecting an improvement in versatility.

  In order to achieve the above-mentioned object, the configuration of the misalignment correcting device according to the present invention is basically configured such that the erection piece connected to the upper or lower column body is connected to the thickness direction of the erection piece. The main body connected in a fixed state from below has a push body abutting on the erection piece continuously connected to the upper or lower column body from the thickness direction of the erection piece. In a center misalignment correcting device that can correct a horizontal misalignment between an erection piece that is continuous with one column and an erection piece that is continuous with the other column as the body moves forward, The jack is moved forward by the hydraulic pressure generated by the movement of the piston driven by the jack located behind the push body, and the jack is manually rotated by the operator. It is formed on the jack screw structure for advancing the piston in operation and comprising.

  Therefore, in the present invention, for example, a push body that is in contact with an erection piece that is continuous with an upper column body that is movable with respect to an erection piece that is continuous with a lower column body that is on a fixed side. Therefore, the push body can be moved forward with a large pressing force compared to the operating force for raising the oil pressure, and the horizontal displacement between the upper and lower erection pieces can be increased. Can be easily corrected.

  At this time, it is assumed that the hydraulic pressure for pressing the push body is driven by a jack formed in a screw jack structure connected in series behind the push body, and the screw jack is driven manually by an operator. Therefore, the operator can drive the jack while visually recognizing the correction status of the positional deviation, and the operation can be performed without requiring extra personnel.

  As a result, according to the present invention, it is possible to easily realize the correction of the horizontal misalignment between the upper column body and the lower column body when building the steel column body.

  In the following, the present invention will be described based on the illustrated embodiment. As shown in FIGS. 1 and 2, the misalignment correcting device according to the present invention, in principle, has a lower column body P1. A horizontal direction between the upper column P2 and the lower column P1 connected to the upper end which is the end and the lower end which is the end of the upper column P2 which is connected to the column P1 from the upper side. It is assumed that the positional deviation of the above, that is, the core deviation is corrected.

  At this time, in many cases, each of the pillars P1 and P2 has a cross section in a direction crossing the axis extending in the vertical direction, for example, as shown in FIGS. It is said to be made of H-shaped steel.

Then, one plate-like body is provided in two opposite sides (see FIGS. 3 and 4) at the upper end portion of the lower column body P1 and the lower end portion of the upper column body P2 or so-called four sides, although not shown. These erection pieces E1 and E2 are integrally connected by welding or the like.
Therefore, this misalignment correcting device is specifically linked to the upper end portion of the lower column body P1 and the lower end portion of the upper column body P2 by being linked to the erection pieces E1 and E2. It is supposed to.

  By the way, the erection pieces E1 and E2 are perpendicular to the so-called flat surfaces of the pillars P1 and P2, and at this time, the axial direction is in a state along the axial direction of the pillars P1 and P2. Distributed.

  Although these erection pieces E1 and E2 are not shown, they are also used when using the erection adjusting device, and the erection pieces E1 and E2 are connected to the lower column body P1 and the upper portion by welding or the like. In the case of a construction method that ensures the integrity with the column P2, it may be removed.

  By the way, as shown in FIG. 1, this misalignment correcting device has a fixing bolt 2 at a lower end portion as one end portion of the main body 1 and a push body 3 at an upper end portion as the other end portion of the main body 1. Thus, where the fixing bolt 2 functions, as shown in the figure, the main body 1 is connected to the upper end portion of the erection piece E1 connected to the lower column P1 in a fixed state.

  At this time, the main body 1 is, for example, die-casted so as to have a predetermined mechanical strength, as shown in the figure, so that the weight of the main body 1 can be reduced and gripped by the operator. It is supposed that a hole 1a which is an empty part is formed in the central part.

  On the other hand, the fixing bolt 2 is a so-called bolt that is screwed to the lower end of the main body 1 and has a tip that is the left end in the drawing with respect to the erection piece E1 that is connected to the lower column P1. It is supposed that the erection piece E1 is in contact with the thickness direction.

  The rear end of the fixing bolt 2 that is the right end in the figure is located so as to be separated from the lower end of the main body 1. For example, the rear end of the fixing bolt 2 interferes with the lower end of the main body 1 during rotation by a ratchet wrench. It is considered not to be possible.

  When the fixing bolt 2 is formed as described above, the main body 1 is hooked from the thickness direction of the erection piece E1 on the upper end portion of the erection piece E1 connected to the lower column P1. The hook 11 is provided.

  At this time, the hook 11 is hooked on the upper end of the erection piece E1 so that the hook 11 can be easily hooked on the upper end of the erection piece E1 even when the thickness of the erection piece e1 is increased. A so-called gap can be formed when hung.

  Therefore, the erection piece E1 is engaged with the hooking portion 11 by rotating, that is, screwing, the fixing bolt 2 with the hooking portion 11 hooked on the upper end of the erection piece E1. 11, the main body 1 is connected to the lower erection piece E1 in a fixed state.

  The push body 3 is arranged so that the upper end portion of the main body 1 is used as a housing. In the drawing, the left end of the push body 3 is connected to the erection piece E2 connected to the upper column P2 and the erection piece E2. It is supposed to be contacted from the wall thickness direction.

  At this time, the push body 3 is held under a liquid-tight structure by having a seal member (not shown) on the outer periphery at the upper end portion of the main body 1, and in this state, It is said that it can move forward and backward.

  On the other hand, the push body 3 is shown on the right side in the figure when the oil pressure described later is released by the urging force from the coil spring 31 as the urging means disposed so as to be interposed at the tip side. It is supposed to retreat to go.

  At this time, the rear end, which is the left end in the drawing of the coil spring 21 in which the tip, which is the right end in FIG. It is assumed that it is carried by a cap 32 that penetrates the body 3.

  Incidentally, a bush 32a that is in sliding contact with the outer periphery of the push body 3 is held on the inner periphery of the cap 32, and the sliding of the push body 3 is guaranteed permanently.

  In the present invention, a jack 4 is arranged on the rear side of the push body 3 formed as described above on the right side of the figure. Hereinafter, the jack 4 will be described with reference to FIG. I will explain a little.

  That is, the jack 4 shown in FIG. 1 is formed in a screw jack structure, and is a piston slidably received in a casing 41 that is detachably connected to the upper end of the main body 1. 42, and the piston 42 is arranged on the right side in the drawing of the piston 42 and is connected to a thread rod 43 that is screwed into the inner periphery of the casing 41, and The operation end 44 a of the operation rod 44 provided continuously with the thread rod portion 43 protrudes from the casing 41.

  At this time, the casing 41 is connected to the upper end portion of the main body 1 under a liquid-tight structure so as to define an oil chamber R between the piston 42 and the push body 2 described above.

  And this casing 41 is set to have the above-described piston 42, screw rod portion 43 and operation rod 44 inside, so that it is formed into a so-called cartridge, and the oil to the oil chamber R is supplied. In addition to facilitating filling, it is easy to detachably connect to the upper end of the main body 1.

  Therefore, in the push body 3 described above, the operation end 44a of the operation rod 44 is rotated by driving the jack 4, that is, by manually rotating the operator by using a ratchet wrench. As a result, the piston 42 moves forward in the casing 41, and the hydraulic pressure rises in the oil chamber R by the advancement of the piston 42. The push body 3 moves forward by this hydraulic pressure, and the erection piece E2 connected to the upper column P2 is illustrated. Therefore, it is possible to correct a positional deviation with respect to the erection piece E1 connected to the lower column body P1, that is, a core deviation.

  The misalignment correcting device according to the present invention formed as described above is, for example, as shown in FIG. 3, in a connecting portion composed of an upper end portion of a lower column body P1 and a lower end portion of an upper column body P2 (not shown). By setting the two units in the so-called same direction and moving the push bodies 3 (not shown and not shown) arranged on the upper end of the main body 1 in the directions indicated by the arrows in the drawing, The positional deviation between the column P1 and the upper column P2, that is, the misalignment can be corrected.

  Then, as shown in FIG. 4, in the above-mentioned connecting portion, two units are set in the so-called opposite directions, and push bodies 3 (not shown and not shown) arranged on the upper end portion of the main body 1 are respectively illustrated. By moving in the direction indicated by the arrow inside, the upper column body P2 is rotated relative to the lower column body P1, so that the positional deviation between the lower column body P1 and the upper column body P2, ie, The misalignment can be corrected.

  The embodiment described above embodies the present invention, but the effective use area of the misalignment correcting apparatus according to the present invention is when the stroke corrected by the misalignment correcting apparatus is about 3 m / m. is there.

  In other words, the stroke corrected by this type of misalignment correcting device does not increase to 5 m / m or 10 m / m, and is normally 3 m / m or less.

  From this, when the push body 3 strokes by driving the jack 4 is 3 m / m or less, the push body 3 can be used without any problem, but the misalignment requiring correction is 3 m / m. If it exceeds, the effective stroke of the push body 3 will be exceeded, and it will be practically impossible to use.

  In such a case, as shown in FIG. 1, the adjustment spacer 5 made of an angle member is interposed, so that it can be within the effective stroke of the push body 3. It would be preferable to make available.

  In the above description, the hook portion 11 of the main body 1 is hooked on the upper end portion of the erection piece E1 provided continuously with the lower column body P1. Contrary to the above, it goes without saying that the hook 11 of the main body 1 may be hooked to the lower end of the erection piece E2 connected to the upper column P2.

  Then, if this case is defined as inverted use, and the illustrated one is defined as upright use, in this inverted use, the operation position when operating the jack 4 can be lowered, that is, it can be used flexibly. This is advantageous in that the attitude can be selected.

  Therefore, in the case of the present invention, the misalignment correcting device is formed in a mode in which the jack 4 is integrally formed on the main body 1, so that the whole can be made compact, and the transfer by the operator is facilitated. Therefore, the product cost can be reduced.

  Not only in terms of appearance, it is approximated to the proposal disclosed in Patent Document 1 described above in terms of correcting the misalignment by rotating the bolt, but in the present invention, hydraulic pressure is used. Since the small force is applied to the push body 3, the movement amount of the push body 3 can be appropriately adjusted without unnecessarily increasing the operator's operating force. This is advantageous in that the correction can be realized as set.

  From the point of use of hydraulic pressure, it is similar to the proposal disclosed in Patent Document 2 described above. However, in the present invention, since the jack 4 is integrally connected to the main body 1, the jack 4 is This is advantageous in that a predetermined misalignment correction can be realized by only one operator who operates.

It is a front view which shows the state which connected the misalignment correction apparatus by one Embodiment of this invention to the erection piece connected to the upper column body, and the erection piece connected to the lower column body in a partial cross section. FIG. 2 is an end view on the operation side on the right side in the misalignment correcting apparatus shown in FIG. 1. It is a top view which shows one use condition of the misalignment correction apparatus shown in FIG. It is a figure which shows the other utilization condition of the misalignment correction apparatus shown in FIG. 1 similarly to FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Fixing bolt 3 Push body 4 Jack 11 Hook part 31 Coil spring as biasing means 42 Piston 43 Screw rod part 44 Operation rod 44a Operation end E1, E2 Erection piece P1 Lower column P2 Upper column

Claims (4)

The main body connected to the erection piece connected to the upper or lower column body in a fixed state from the thickness direction of the erection piece is connected to the upper or lower column body. The erection piece has a push body abutted from the thickness direction of the erection piece, and the erection piece continuously connected to one column body and the erection piece continuously connected to the other column body as the push body advances. In a misalignment correcting device that can correct a horizontal misalignment between the push body and the push body, the push body is advanced by the hydraulic pressure generated by the movement of the piston driven by a jack disposed behind the push body. In addition, the cores are formed in a screw jack structure in which the piston is advanced by a manual rotation operation by an operator. Correction device. 2. The misalignment correcting device according to claim 1, wherein the push body can be retracted by an urging force from an urging means adjacent to the push body when the hydraulic pressure from the back is released. The piston is slidably housed in a casing that is detachably connected to the main body, and the piston is connected to a threaded rod portion that is arranged behind the piston and screwed into the inner periphery of the casing. The misalignment correcting device according to claim 1, wherein a thread rod portion is continuously provided at a tip of an operation rod having an operation end protruding outside the casing. The main body has a hook part that is hooked from the thickness direction of the erection piece at the end of the erection piece that is connected to one column body, and pushes while being eccentrically opposed to the hook part. It has a fixing bolt with its tip facing the hook from the same direction as the body. By rotating this fixing bolt, the main body is connected to an erection piece connected to one column body in a fixed state. The misalignment correcting device according to claim 1.

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