JP4247562B1 - Tightening device - Google Patents

Abstract

Provided is a tensioning device that can easily adjust length and angle, reduce time and cost, and save wood resources.
A horizontal member 2 includes a plurality of rectangular plate members, such as an inner member 21, an intermediate member 22, and an outer member 23, which are stacked in the thickness direction. And the rails 21b, 22h, 22e, and 23e are slidable in the longitudinal direction of each other, and constitute a tensioning device 1 having the same width.
[Selection] Figure 1

Description

  The present invention relates to a tensioning device used for a tensioning operation such as during ground formation.

  Conventionally, the tension is used to indicate the slope and the position of the side groove when cutting or embedding in civil engineering work. For example, since it is necessary to secure an appropriate water gradient in the side groove, not only the position and direction in the horizontal direction but also the position and direction in the vertical direction need to be set strictly. Since it is difficult to draw a line serving as a guide for the position of the gutter in the three-dimensional space, as shown in FIG. 12, a stringer 100 is installed in a gate shape at appropriate intervals, and a vertical line is lowered from the stringer 100. Side grooves are installed using a virtual line connecting the tips of the perpendiculars as a guide.

  A conventional tension is shown in FIG. As shown in FIG. 12 (a), the stringer 100 has a single horizontal member 110 and two basic piles 120, both of which are wooden square bars, as shown in FIG. In combination with the overhang type. Further, depending on circumstances, a slope tension 112 is added as shown in FIG. 13 (a), an addition 121 is added as shown in FIG. 13 (c), and FIGS. 13 (b) and 13 (d) are added. The horizontal member 110 is directly attached to the H steel R or the sheet pile S as shown in FIG.

  As shown in FIG. 12, the basic pile 120 is a member that becomes a pillar for fixing the horizontal member 110 when the tensioner 100 is installed, and the pair of basic piles 120 is driven into the ground at appropriate intervals. The horizontal member 110 is for displaying the height from the construction structure at the upper end or the lower end, and is spanned between the pair of basic piles 120 in a beam shape. A display nail 111 is driven into a predetermined position on the upper surface of the horizontal member 110. The display nail 111 is obtained by vertically projecting a position serving as a reference of the construction structure onto the string.

  A method of installing such a stringer 100 will be described with reference to FIGS. First, as shown in FIG. 14 (a), the worker P1 drives the two basic piles 120 over the ground G with a heel or the like. Next, the height adjustment work is performed. As shown in FIG. 14 (b), the height of the top is measured using the level for one of the piles driven.

  Then, as shown in FIG.14 (c), the height which installs the horizontal member 110 is calculated. Here, since it is desirable that the height H1 from the side groove 130, which is the target structure, to the upper surface (or lower surface) of the horizontal member 110 is constant, the height to be installed is determined in consideration of the balance with other tensions. . For example, as shown in FIG. 16, even when the ground G is undulated, the side groove 130 may have to be installed in a straight line shape or a loosely curved shape. It is necessary to consider the workability in For example, the installation height can be set so that the stringer 100 comes 30 cm above the upper surface of the side groove 130. If necessary, the additional plate 121 is installed and the basic pile 120 is extended. Then, the calculated installation height is measured from the head of the basic pile 120 using a scale, and the basic pile 120 is marked with a pencil.

Next, as shown in FIG. 14 (d), the horizontal member 110 is temporarily fixed to the end face of the basic pile 120 with a nail.
Subsequently, as shown in FIG. 15 (e), a leveler H is placed on the temporarily tightened stringer, the level is confirmed, and the horizontal member 110 is fixed to the other basic pile 120 with nails. At this time, the excess portion of the horizontal member 110 is cut with a saw.
Next, the positioning operation is performed. As shown in FIG. 15 (f), the reference position is nailed to the upper part of the string using the reference pile Q or R or transit T installed in advance.

  Positioning by transit will be described. As shown in FIG. 15 (f), this is a method used mainly when the installed side groove 130 or the like is a straight line. A transit is installed on the reference pile, and after collimating the target reference pile, a target is set on the horizontal member 110 and nails are driven on the horizontal member 110.

  The positioning from the pre-installed reference pile will be explained. As shown in FIG. 15 (g), a leveler is vertically applied to a pre-installed reference pile, a mark is made on the horizontal member 110, and a nail is driven on the horizontal member 110. At this time, as shown in FIG. 15 (g), the positional relationship between the nail 111 installed in the tension and the nail of the reference pile is vertical.

  Here, in order for the operator to clearly understand the installation height and position of the stringer, it may be displayed on the horizontal member 110 with a magic or the like as to which position of the structure is displayed from the built-up structure. Many. Usually written on a wooden horizontal member.

  Thereafter, as shown in FIG. 15 (h), a water string is stretched around the set horizontal member 110, and various constructions such as excavation of the building structure, foundation concrete, and structure installation are performed based on the water thread. .

Japanese Patent Application Laid-Open No. H10-260260 discloses a detailed operation about the operation as well as an operation device for the application of the stringing operation used to quickly perform the stringing position according to the current situation without any trouble.
JP 2005-30789 A

  However, conventional stringers are made of wood, and the remaining material cut off to adjust the length, and stringers that have been used once at the site are disposed of by incineration. As a result, resources are wasted, and a large amount of timber must be loaded onto trucks and delivered to the site during construction.

  In addition, since dimensional deviation due to moisture absorption occurs in wood, it has been a serious detriment to surveying operations that require accuracy. In particular, due to the bending of the horizontally installed wood, even if the heights are matched at both ends, the height at the middle part may be distorted. In such a case, the accurate height cannot be displayed. As a countermeasure, at the site, we used a lot of wood called Nuki. However, this work requires skill. Further, in general, since the upper side and the lower side of the horizontal member are used as the position reference in the tensioning, it is necessary that the wood used as the horizontal member is completely straight and the thickness of each part is uniform. Many conventional woods have an error of about 2 to 3 mm due to product processing errors, and in order to cope with this, on-site processing such as cutting with a saw has been performed to overcome the emergency.

  Moreover, in order to install the exact stringer, it is necessary to carry out troublesome work and calculations with skillful surveying techniques, and the work labor consumed for this is very heavy. This was largely dependent on the intuition of the workers.

  In addition, when a pile driven into the ground has become slanted, it has been necessary to correct the slope by pushing a stone or the like to the base, or to strike it again. Or it was necessary to adjust by putting a punching plate between the pile and the stringer.

  In addition, when it is necessary to set the tension to a height higher than that of the existing pile, it has been dealt with by hitting the addition plate 121 perpendicularly to the basic pile 120 as shown in FIG. The add-on plate 121 needs to be installed vertically, and is a cumbersome and highly skilled work. When the basic pile 120 was inclined, it was a more difficult task. Conventionally, when the basic pile 120 is inclined, there is no choice but to discard it, or to strike it again or to install a troublesome treatment for inclination. In addition, in order to correct the inclination of the basic pile 120, a stone or the like was applied to the base of the basic pile 120, and it was sometimes struck and corrected. However, in this case, the basic pile 120 becomes unstable or breaks. In many cases, it was not a fundamental solution.

  The present invention has been made in view of the above problems, and provides a tensioning device that can easily adjust the length and angle, reduce time and cost, and save wood resources. Objective.

In order to achieve the above object, the tensioning device of the present invention has a horizontal member, and the horizontal member is formed by stacking a plurality of rectangular plate members having the same width in the thickness direction. An inner member provided with a first rail along the longitudinal direction and a first guide hole drilled along the longitudinal direction, and a plate material provided so as to be superimposed on both surfaces of the inner member. A second rail provided on the inner side surface and a third rail provided on the outer side surface along the longitudinal direction, the second rail being slidable with respect to the first rail via a stopper An intermediate member provided and a plate member provided so as to be overlapped on both surfaces of the intermediate member, comprising a fourth rail provided on the inner surface, and the fourth rail is a regulating member with respect to the third rail Sliding within the range regulated by And a retaining member provided on the other of the first rail and the second rail, and a pin protruding from one end of the first rail and the second rail. The restriction member is inserted in the second guide hole drilled along the longitudinal direction of the intermediate member and the outer member, and the first guide hole and It is characterized by comprising a bolt that can slide in the second guide hole .

The tensioning device has a clamp member that fixes a horizontal member to an object to be fixed. The clamp member is pivotally connected to one end of the arm portion and grips the horizontal member . It may have a fixed part that is slidably connected in the longitudinal direction of the arm part and fixed to the fixed object .

  The outer member may comprise a level.

  The plate member may be provided with a scale indicating the stretchable length.

  The plate member may have a groove for receiving a water nail on the upper surface.

  The stringing device has a water nail that engages with the groove, and the water nail is composed of a shaft end portion and a reference end portion, and an engagement portion having a rectangular cross section is provided at the shaft end portion. The portion engages with the groove.

  According to the tensioning device of the present invention, since the plurality of plate members constituting the horizontal member can slide with each other, the length can be freely adjusted, and it is not necessary to cut to the required length every time construction is performed, so that it can be used repeatedly. Can reduce wood consumption and preparation burden. In addition, since they are overlapped in the horizontal direction perpendicular to the slide direction and have the same width in the vertical direction, there is no difference in height between the both end portions and the intermediate portion on either the upper side or the lower side of the horizontal member.

  The clamp member has an arm portion, a clamp portion that is rotatably connected to one end of the arm portion, and a fixed portion that is slidably connected in the longitudinal direction of the arm portion. If it has, it can be installed with fine adjustment mechanically without re-striking the pile.

  When the plurality of plate members are composed of the inner member, the intermediate member, and the outer member, the length ratio between the shortest time and the longest time can be 1: 3.

  When the outer member has a level, it is not necessary to purchase a level-specific level, and the level and vertical of the member can be confirmed visually.

  When the plate member has a scale indicating the expansion / contraction length, the expansion / contraction length of the member can be confirmed visually.

  When the plate member has a regulating member that regulates the sliding range of each other, the sliding range can be limited to a certain level.

  When the plate member has a groove for receiving the water nail on the upper surface, the water nail can be attached to this groove, and there is no hole at this time. It can be used.

  A water nail consists of a shaft end and a reference end, and the shaft end is provided with an engagement portion having a rectangular cross section. It can be engaged with and disengaged from the groove formed and can be reused. In addition, the work can be easily performed because the horizontal member can be slid while keeping the level.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 1, the horizontal direction of the horizontal member 2 is Z, the horizontal direction is X, the longitudinal direction of the horizontal member 2 is X, and the horizontal direction is The thickness direction is represented by Y.

  As shown in FIG. 1, the tensioning device 1 according to the embodiment includes a horizontal member 2, a vertical member 3, a clamp jig 41 as a clamp, and a clamp member 42. The clamp member 42 is fixed to a pile P as a fixed object. In FIG. 1, only one set of the vertical member 3, the clamp jig 41, the clamp member 42 and the pile P is illustrated, but actually, another set of the vertical member 3 and the clamp is connected to the other horizontal members 2. It is fixed to the end and other piles to form a gate type.

  Each member can be made of not only the same wood as in the prior art but also an aluminum material with little dry expansion and contraction. The horizontal member 2 can be expanded and contracted steplessly while maintaining the level of the horizontal member 2 according to the field conditions, and the vertical member 3 can be expanded and contracted steplessly while maintaining the vertical of the vertical member 3. In addition, since various adjustments can be made by the clamp member 42, positioning on the stringer can be easily performed.

  The horizontal member 2 is composed of a plurality of plate members, and the plurality of plate members can be slid in the horizontal direction with respect to each other via rails, overlapped in the horizontal direction perpendicular to the sliding direction, and have a vertical width. Are the same.

  Specifically, in the tensioning device 1 of the embodiment, as a plurality of plate members, an inner member 21, a pair of intermediate members 22 and 22 slidably attached to both ends of the inner member 21, and these intermediate members A pair of outer members 23, 23 are slidably attached to the ends of the members 22, 22.

  As shown in FIG. 2, the inner member 21 is an elongated plate material, and guide holes 21a and 21a are formed along the longitudinal direction at the center in the width direction. The guide holes 21a and 21a are divided at the center in the longitudinal direction to form a pair. Further, on both sides in the width direction of the guide hole 21 a, convex rails 21 b and 21 b along the longitudinal direction are provided over the entire length of the inner member 21. Pins 21c, 21c protrude perpendicularly to the plate surface at both ends of the convex rail 21b.

  As shown in FIG. 3, the intermediate member 22 is provided such that a pair of plate members 22 a and 22 a that are half the length of the inner member 21 and the same width as the inner member 21 are overlapped on both surfaces of the inner member 21. A pair of intermediate members 22 are slidably attached to the inner member 21 so as to cover both ends of the inner member 21. The intermediate member 22 is U-shaped when viewed from above, and receives the inner member 21 from the open end side.

  The closed ends of the plate members 22a and 22a are extended inward in an L shape and joined together by bolts (not shown) inserted into the bolt holes 22b and 22b to form a closed end. The plate members 22a and 22a are also connected by a bolt 22d inserted through a bolt hole 22c perpendicular to the plate surface at the center in the width direction in the vicinity of the open end. The bolt 22d slides in the guide hole 21a of the inner member 21.

  Further, the intermediate member 22 is provided with concave rails 22e and 22e along the longitudinal direction on both sides in the width direction of the bolt hole 22c on the inner side surface over almost the entire length of the intermediate member 22 including the open end. The concave rails 22e and 22e form a particularly deep groove in the sliding region 22f of the pins 21c and 21c. That is, the convex rail 21b slides over the entire length of the concave rail 22e, but the pin 21c can slide only in the sliding region 22f. Therefore, the sliding region 22f and the pin 21c function as a retaining member for the intermediate member 22 with respect to the inner member 21.

  Further, the intermediate member 22 is provided with a guide hole 22g along the longitudinal direction at the center in the width direction. The guide hole 22g is provided from the closed end to the vicinity of the bolt hole 22c. Further, convex rails 22 h and 22 h along the longitudinal direction are provided over the entire length of the intermediate member 22 on both sides in the width direction of the guide hole 22 g on the outer surface.

  As shown in FIG. 4, the outer member 23 has a pair of plate members 23 a and 23 a that are half the length of the inner member 21 and the same width as the inner member 21, and are overlapped with the outer surfaces of the intermediate members 22 and 22. The pair of outer members 23 are slidably attached to the intermediate member 22 so as to cover the closed ends of the pair of intermediate members 22, 22. The outer member 23 has a U-shape when viewed from above, and receives the intermediate member 22 from the open end side.

  The closed ends of the plate members 23a, 23a are extended inward in an L shape and joined together by bolts 23c, 23c inserted into the bolt holes 23b, 23b to form a closed end. The plate members 23a, 23a are also connected by a bolt 23f inserted through a bolt hole 23d perpendicular to the plate surface at the center in the width direction in the vicinity of the open end. The bolt 23 f slides in the guide hole 21 a of the inner member 21 and the guide hole 22 g of the intermediate member 22.

  Further, the outer member 23 is provided with concave rails 23e and 23e along the longitudinal direction on both sides in the width direction of the bolt hole 23d on the inner side surface over almost the entire length of the outer member 23 including the open end. That is, the convex rail 22h slides over the entire length of the concave rail 23e. The bolt hole 23d, the bolt 23f inserted through the bolt hole 23d, and the guide hole 22g of the intermediate member 22 function as a regulating member for the outer member 23 with respect to the intermediate member 22. Further, the outer member 23 may include a level on the side surface, end surface, or upper surface. This level may be embedded in the surface of the outer member 23 so as to be flush with the surface of the outer member 23.

  By being configured as described above, the plurality of plate members 21, 22, and 23 that constitute the horizontal member 2 can slide while regulating the movement range. Therefore, as shown in FIGS. 5 (a) and 5 (b), the horizontal member 2 can be freely expanded and contracted steplessly while keeping the level in accordance with the field conditions. Here, the horizontal member 2 is for displaying the height position, and since the width of each plate member 21, 22, 23 is the same, the height of the lower side and the height of the upper side in each plate member. Can be kept the same, and the height position can be accurately displayed from any point.

  The horizontal confirmation of the horizontal member 2 is performed using a level attached to the horizontal member 2 or a commercially available level. The built-in level is built in the front and side surfaces of the outer member 23. Further, circular bubbles are built in the upper surface of the outer member 23, and vertical and horizontal can be confirmed at a glance by visually recognizing them.

  As shown in FIG. 6, the inner member 21, the intermediate member 22, and the outer member 23 are each provided with a groove 2 a on the upper surface along the length direction. This groove 2a is for engaging and fixing the water nail 24.

  The water nail 24 is L-shaped as shown in FIG. 7, and is attached to the horizontal member 2 so that the reference end 24a is horizontal and the shaft end 24b is vertical. The reference end portion 24a has a spherical stopper 24c at its end, and can prevent the yarn from coming off when the yarn is tied. A rectangular parallelepiped engaging portion 24d is provided near the end of the shaft end portion 24b. The engaging portion 24d has a rectangular cross section, and the longitudinal direction in the sectional view is the same as the longitudinal direction of the reference end portion 24a. Further, the width W1 in the sectional view is shorter than the width of the groove 2a, and the length W2 in the sectional view is equal to or slightly longer than the width W of the groove 2a. The rectangle in cross-sectional view may have rounded corners.

  The water nail 24 is aligned with the reference pile Q driven into the ground in a plan view. Specifically, by hanging a water thread with a downward swing from the reference end 24a of the water nail 24, applying a level to the water nail, or collimating the water nail with a transit, Adjust so that the position overlaps the pile Q. In order to install the water nail 24 on the horizontal member 2, the shaft end portion 24b is inserted into the groove 2a of the horizontal member 2 in a state where the longitudinal direction of the section of the engaging portion 24d is the same as the longitudinal direction of the groove 2a. Rotate 90 degrees around the end 24b. By doing so, the longitudinal direction of the cross section of the engaging portion 24d is engaged with the groove 2a, the water nail 24 is engaged with the groove 2a, and the reference end portion 24a projects perpendicularly to the horizontal member 2, and this Water string can be tied to By doing so, the water peg 24 and the horizontal member 2 can be reused any number of times.

  Like the horizontal member 2, the vertical member 3 is composed of a plurality of plate members, and the plate surface direction of these plate members is parallel to the plate surface direction of the horizontal member 2. However, the longitudinal direction is perpendicular to the longitudinal direction of the horizontal member 2 and can be expanded and contracted up and down. The telescopic mechanism composed of a plurality of plate members is the same as that of the horizontal member 2 and will not be described. The vertical member 3 may be provided with a leveling device and a circular bubble on a side surface, an end surface, or an upper surface. According to such a vertical member 3, it is installed vertically by an attached level or a commercially available level, and can be freely expanded and contracted steplessly while being kept vertical.

  Since the vertical member 3 can be expanded and contracted, there is no need to add and tighten, and there is no need to cut it too long. Furthermore, if a dimension scale is provided on each plate member of the vertical member 3 along the longitudinal direction, the length can be known visually without measuring the length even when the vertical member 3 is expanded or contracted. Specifically, the height of the horizontal member 2 is determined by reading the dimensional scale from here to the lower side or the upper side of the horizontal member 2 on the basis of the height of the top of the outermost member 23 at the bottom of the vertical member 3. be able to. Further, by reading the dimensional scale from the top of the outermost member 23 at the lowermost stage of the vertical member 3, the length of the vertical member 3 can be made the minimum necessary in advance, so even when the horizontal member 2 is installed The number of parts protruding above the horizontal member 2 is small, and the construction is not hindered.

  A clamp jig 41 is provided between the vertical member 3 and the horizontal member 2, and the clamp jig 41 fixes the vertical member 3 and the horizontal member 2 so that the positions of the vertical member 3 and the horizontal member 2 are fixed. The relationship is fixed. As shown in FIG. 8, the clamp jig 41 is fixed at a position where two U-shaped clamp parts 41a and 41b are twisted back to back and 90 degrees, and these clamp parts 41a and 41b are respectively connected to the horizontal member 2 and The vertical member 3 is gripped. Each of the clamp portions 41a and 41b includes a U-shaped member 41c, a pressing member 41d, and a thumbscrew 41e. The pressing member 41d is interposed inside the U-shaped member 41c, and the horizontal member 2 or the vertical member 3 is sandwiched and held between the pressing member 41d of the U-shaped member 41c by tightening the thumbscrew 41e. The vertical member 3 and the horizontal member 2 are sandwiched between the upper and lower surfaces of the horizontal member 2 by the one clamp portion 41a of the clamp jig 41 thus configured and the both side surfaces of the vertical member 3 by the other clamp portion 41b. Can be fixed vertically to each other.

  The vertical member 3 is fixed to the pile by a clamp member 42. As shown in FIG. 9, the clamp member 42 includes a clamp portion 42a that holds the vertical member 3, a fixed portion 42b that is fixed to the pile P, and an arm portion 42c that connects the clamp portion 42a and the fixed portion 42b. .

  The clamp part 42a of the clamp member 42 has the same configuration as the clamp part 41a of the clamp jig 41, but is different in that the U-shaped back part is fixed to the ball joint 42d. Since the other points are the same as those of the clamp part 41a, the same reference numerals are given and the description thereof is omitted.

  The arm portion 42c is formed by arranging two elongated plate-like members in parallel with a space therebetween, and fixed at one end by a bolt 42e. The other end is a clamping part 42f that clamps the ball joint 42d. A butterfly screw 42g is provided in the vicinity of the clamping part 42f, and the ball joint 42d is fixed by tightening the thumbscrew 42g. Further, by loosening the thumbscrew 42g, the ball joint 42d can freely rotate around the ball portion. The arm portion 42c is provided with a long hole 42h along the longitudinal direction in each of the two plate-like members, and the long hole 42h is provided with a thumbscrew 42i. The thumbscrew 42i is screwed into a handle portion 42j fixed to the fixing portion 42b, and the fixing portion 42b is fixed to the arm portion 42c by tightening the thumbscrew 42i.

  The fixed portion 42b is a short cylindrical member, and a handle portion 42j is screwed to a part thereof. In addition, a wing screw 42k is screwed to another portion so as to vertically penetrate the circumferential surface. The fixed part 42b can be fixed to the pile P by inserting the pile P into the fixed part 42b and fastening the thumbscrew 42k.

  It is desirable to fix a plurality of clamp members 42 to the pile P, particularly two clamp members 42, as shown in the figure, at distant positions. On the other hand, since the vertical member 3 is held by the clamp portions 42a of these clamp members 42, the vertical member 3 is securely fixed to the pile P without swinging.

  Further, as a modification of the horizontal member 2 and the vertical member 3, it is also possible to provide a separate expansion / contraction restriction means. For example, as shown in FIG. 10, sliding of the inner member 21 with respect to the intermediate member 22 by fitting T-shaped fixing jigs 61 and 62 between the intermediate members 22 and between the outer members 23, The sliding of the intermediate member 22 with respect to the outer member 23 can be restricted. The fixing jig 61 includes a top plate portion 61a and a pressing portion 61b. By fitting the pressing portion 61b between the intermediate members 22, the inner member 21 comes into contact with the pressing portion 61b. The sliding with respect to the member 22 can be regulated. Similarly, the fixing jig 62 includes a top plate portion 62a and a presser portion 62b. By fitting the presser portion 62b between the outer members 23, the intermediate member 22 comes into contact with the presser portion 62b. It is possible to restrict the sliding of the 22 with respect to the outer member 23. Separately from this, a groove 22i is provided in the intermediate member 22 as shown in FIG. 10, and a thumbscrew 22j having an engaging portion having a rectangular cross section similar to the water nail 24 is engaged therewith. Also, the sliding of the intermediate member 22 relative to the outer member 23 can be restricted. The same configuration can be adopted for the sliding of the inner member 21 with respect to the intermediate member 22.

A method of using the tensioning device 1 configured as described above will be described. In addition, about the point similar to the past, the same code | symbol is attached | subjected and illustration is abbreviate | omitted suitably.
First, two piles P are driven into the point where the tensioning device 1 is installed.
Next, two clamp members 42 are fixed to these piles P at positions apart from each other. At this time, the fixed portion 42b is fixed to the pile P by inserting the pile P into the fixed portion 42b and tightening the thumbscrew 42k.

  Subsequently, the vertical member 3 is interposed between the clamp portions 42 a of the respective clamp members 42, the vertical member 3 is extended to an appropriate length, and the thumbscrew 41 e is tightened to fix the vertical member 3 to the clamp member 42. At this time, the pressing member 41d and the U-shaped member 41c sandwich the width direction of the vertical member 3, that is, the pressing member 41d is perpendicular to the width direction of the vertical member 3, thereby The stretchable length can be fixed. This is because, since the plate members constituting the vertical member 3 have the same width, the end portions in the width direction of the respective plate members receive friction with the clamp portion 42a and cannot slide with respect to each other. Further, if necessary, the expansion / contraction is restricted by providing the above-described expansion / contraction restriction means.

  Next, the wing screw 42i and the wing screw 42g of the clamp member 42 are loosened, the positional relationship between the pile P and the vertical member 3 and the formed angle are adjusted as appropriate, and the wing screw 42i and Tighten the thumbscrew 42g. The interval between the pile P and the vertical member 3 can be adjusted by loosening the thumbscrew 42i and sliding the elongated hole 42h together with the handle portion 42j and fixing it at an appropriate position. Further, the angle formed between the pile P and the vertical member 3 can be set to an arbitrary angle in the three-dimensional direction by loosening the thumbscrew 42g and rotating the clamp portion 42a around the ball joint 42d. At this time, the vertical of the vertical member 3 is confirmed by a level device or a circular bubble incorporated in the vertical member 3 or a separate level device. By doing in this way, the vertical member 3 can be made into the perpendicular | vertical both front and the side.

  Subsequently, the clamp jig 41 is attached to the vertical member 3. Specifically, the vertical member 3 is interposed in the clamp portion 41a of the clamp jig 41, and the thumbscrew 41e is tightened in a state where the vertical member 3 is extended to an appropriate length.

  In this way, when the vertical member 3 is sandwiched between the clamp portions 41a and 42a, the width direction of the vertical member 3 is sandwiched between the pressing member 41d and the U-shaped member 41c, that is, the pressing member 41d extends in the width direction of the vertical member 3. By making it vertical, the expansion / contraction length of the vertical member 3 can be fixed. In addition, when the vertical member 3 is extended to the maximum extent or the like, if the expansion and contraction of the vertical member 3 cannot be completely regulated by the friction of the clamp portions 41a and 42a, a similar clamp may be added separately or the above-mentioned By providing the expansion / contraction restriction means, the expansion / contraction length of the vertical member 3 is fixed.

  By performing the above operation on the pair of piles P, the pair of vertical members 3 are attached to the pair of piles P while keeping the vertical. Subsequently, the horizontal member 2 is attached between the clamp jigs 41 attached to these vertical members 3. Specifically, the horizontal member 2 is bridged between the clamp portions 41b of the clamp jig 41, and the horizontal member 2 is fixed by tightening the thumbscrew 41e with the horizontal member 2 extended to an appropriate length. At this time, the level of the horizontal member 2 is confirmed by a level device incorporated in the horizontal member 2 or a separate level device, the thumbscrew 41e is loosened as necessary, and the horizontal member 2 is tightened again in a horizontal state. The horizontal member 2 is leveled. By doing in this way, the horizontal member 2 can be kept horizontal.

  Subsequently, the positions of the water nail 24 and the reference pile Q driven into the ground are aligned. Specifically, it is adjusted so that the position overlaps with the reference pile Q by hanging down from the water nail 24 or applying a leveling device. Alternatively, the position of the water thread nail 24 may be determined using a transit, and the position may be adjusted by moving and fixing the water thread nail 24 appropriately.

  The installation of the stringing device 1 is completed as described above. At the site, the position of the tensioning device 1 may be out of order due to vibrations of heavy machinery, but in this case as well, it is possible to easily correct the inaccuracy by making adjustments using a level or a thumbscrew as described above. it can.

  The tensioning device 1 can be implemented in various embodiments. For example, a slope hook can be used in combination. The slope tension is also configured in the same manner as the horizontal member 2, that is, by providing an expansion / contraction mechanism, it can be expanded / contracted according to the field conditions. The slope face tension is a clamp fitting similar to the clamp jig 41, and the angle between the clamp portions can be set freely as well as vertically, specifically, the clamp portions are back to back, and the bolt that becomes the shaft Are fixed to the horizontal member 2 and the vertical member 3 by using ones that are pivotably connected to each other. The slope face is used to display the plan slope in fill and cut work, and the position is adjusted according to the specified slope.

  As a variation of the clamp member 42, a clamp member according to a modified example for attaching to the H-shaped steel as an object to be fixed instead of the vertical member 3 can be used. This is a modification in which the fixed portion 42b of the clamp member 42 is modified to be fixed to the flange portion of the H-shaped steel. Specifically, a clamp fitting similar to the clamp portion 42a is provided instead of the fixed portion 42b. Is sandwiched between the flange portions of the H-shaped steel.

  Moreover, when attaching to the metal sheet pile as a to-be-fixed object instead of the vertical member 3, the clamp member of another modification can be used. This is a modification of the fixing portion 42b of the clamp member 42. Specifically, a magnet is provided in place of the fixing portion 42b, and this is magnetically attached to the surface of the sheet pile.

  As shown in FIG. 11, a fitting plate 6 can be attached to the tensioning device 1. The fitting type plate 6 is a generally bowl-shaped member having a U-shaped cross section, and can be placed by fitting into the horizontal member 2 from above. The side surface of the embedded plate 6 has a blackboard or white board shape, and characters can be written or erased as appropriate. Therefore, it can be reused any number of times. The inset plate 6 clearly indicates to the operator the position of the structure that is raised and displayed from the building structure so that the set height and position of the tension can be clearly understood. To do.

  There are mainly gate-type and overhang-type installation types of the tensioning device 1. The gate type is a form in which the tensioning device 1 is interposed between a pair of piles P, and is a stable form to support both ends of the horizontal member. The overhanging type is a form in which the tensioning device 1 is interposed so that the horizontal member 2 projects from the pair of piles P to one side, and it is unstable but the facing pile cannot be hit due to space problems or the like Adopted to etc. The length of the horizontal member 2 is adjusted to expand and contract based on the basic pile P in the case of the gate type and on the basis of the reference pile Q in the case of the overhang type. Moreover, it is necessary to determine the length of the horizontal member in consideration of the construction conditions. The gate type and the overhang type are appropriately selected according to the construction conditions of the ground. In addition, as a gate-shaped combination form, four piles P are installed so as to be positioned at the vertices of a quadrangle in plan view, a vertical member 3 is installed on each pile P, and a horizontal member is provided between the vertical members 3 It can be applied to an enclosure type in which 2 is installed. The enclosure type is used for rectangular parts such as fences and buildings.

  Depending on the installation conditions, the installation position of the tension can be set at intervals of 10 m, 3 m to 5 m, or the like. Moreover, the length of the horizontal member 2 can be set suitably. When the height of the pile P is insufficient and the height of the horizontal member 2 is insufficient, it can be dealt with by extending the vertical member 3 upward in the vertical direction.

  As mentioned above, although the stringing apparatus of embodiment of this invention was demonstrated, the stringing apparatus of this invention can be implemented with a various form in the range which does not deviate from the main point. For example, the plate members constituting the horizontal member and the vertical member are not limited to the outer member, the inner member, and the intermediate member, and the number of plates can be appropriately increased.

It is a perspective view which shows the stringing apparatus of embodiment of this invention. It is a perspective view which shows an inner member. It is a perspective view which shows an intermediate member. It is a perspective view which shows an outer side member. The horizontal member is shown, (a) is a contracted state, (b) is a perspective view showing an extended state. It is the perspective view which crossed the horizontal member in FIG.5 (b), (a) shows the state cut | disconnected by the AA part and (b) by the BB part. The hatch indicates a cross section. It is a perspective view which shows a water thread nail. It is a perspective view which shows a clamp jig | tool. It is a perspective view which shows a clamp member. It is a perspective view which shows the horizontal member provided with the expansion-contraction restriction | limiting means, and shows the state which carried out the cross section of the part corresponded to the BB part in FIG.5 (b). It is a perspective view which shows a fitting type plate. It is a perspective view which shows the stringer of a prior art example, (a) is a portal type | mold, (b) shows an overhang | projection type | mold. It is a perspective view which shows the tension | tensile_strength of a prior art example, (a) is a slope tension type | mold, (b) is a H steel type | mold, (c) is an addition type, (d) shows a sheet pile type | mold. It is a figure which shows the installation method of the stringer of a prior art example. It is a figure which shows the installation method of the stringer of the prior art example following FIG. It is a side view which shows the example of installation of the tensioner of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tightening device 2 Horizontal member 2a Groove 3 Vertical member 4 Clamp 5 Slope face tension 6 Insertion type plate 21 Inner member 21a Guide hole 21b, 22h Convex rail 21c Pin 22 Intermediate member 22a, 23a Plate member 22b, 22c, 23b, 23d Bolt hole 22d, 23c, 23f, 42e Bolt 22e, 23e Concave rail 22f Sliding area 22g Guide hole 23 Outer member 24 Water thread nail 24a Reference end 24b Shaft end 24d Engaging portion 41 Clamp jig 41a, 41b, 42a Clamping part 41c U-shaped member 41d Holding member 42, 42r, 42s Clamping member 42b Fixing part 42c Arm part 42d Ball joint 42f Clamping part 42h Long hole 42j Handle part 61 Fixing jig 61a, 62a Top plate part 61b, 62b Part 62 Fixing jig 110 Horizontal part 111 Display nail 120 base piles 121 plus vent plate G Ground M Gantry N ChoIzurugata P pile Q reference pile R H-section steel S sheet pile W width P1 worker W1 Width

Claims (5)

A tensioning device having a horizontal member, wherein the horizontal member is formed by overlapping a plurality of rectangular plate members having the same width in the thickness direction.
An inner member comprising a first rail along the longitudinal direction, and a first guide hole drilled along the longitudinal direction;
A plate material provided so as to be overlapped on both surfaces of the inner member, the second rail provided on the inner surface, and a third rail provided on the outer surface along the longitudinal direction, the second rail An intermediate member provided such that the rail of the first rail is slidable with respect to the first rail via a stopper;
A plate provided to be superimposed on both surfaces of the intermediate member, comprising a fourth rail provided on the inner surface, wherein the fourth rail is restricted by the restriction member with respect to the third rail An outer member provided in a slidable manner within,
The retaining member is provided on the other of the first rail and the second rail, and the other of the first rail and the second rail, and the pin is slidable. Consisting of a sliding area,
The restricting member is inserted into the second guide hole formed along the longitudinal direction of the intermediate member and the outer member, and is slidable in the first guide hole and the second guide hole. A tensioning device comprising a bolt.   The tensioning device of claim 1, wherein the outer member comprises a level.   The tension device according to claim 1, wherein the plate member includes a scale indicating an expansion / contraction length.   The tension device according to any one of claims 1 to 3, wherein the plate member has a groove for receiving a water nail on an upper surface.   The water peg includes a water nail that engages with the groove. The water nail includes a shaft end portion and a reference end portion, and an engagement portion having a rectangular cross section is provided at the shaft end portion. The tensioning device according to claim 4, wherein the hook engages with the groove.