JP2005113943A - Turnbuckle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a turnbuckle for easily threading a screw rod to a turnbuckle body. <P>SOLUTION: The turnbuckle body 1 is slidable along a rod material 2. Thus, a nut portion 14 is easily threaded to a screw portion 32 by rotating the turnbuckle body 1 while contacting to the screw portion 32 of the screw rod 3 after placing the turnbuckle body 1 farther from the screw rod 3 once. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a turnbuckle that is used as a building hardware and generates tension at two isolated points.

  In order to ensure the strength of the building, the screw rods are fixed or engaged with the diagonal portions of the rectangular frame, and the tips of both screw rods are set so that a predetermined interval is formed. . However, the screws of both screw rods are cut in opposite directions, one being a right-hand thread and the other being a left-hand thread.

  Both ends of the turnbuckle body are formed with female thread portions in opposite directions. When the tips of the threaded rods are screwed into these female thread portions, and the turnbuckle body is further rotated, both screw portions are turned into the turnbuckle body. Proceed inside. For this reason, both screw rods are attracted to each other, and tension is generated between two points at which both screw rods are fixed or engaged.

  Note that a turnbuckle is also used to prevent the container from collapsing when the container is transported rather than at the construction site (see, for example, Patent Document 1). In this device, a short screw rod is screwed to one end of the turnbuckle body, and a wire or a rope engaged with a container or the like is engaged with the short screw rod. In addition, a bar material that can freely enter the inside of the turnbuckle body but cannot be moved out by the ratchet mechanism is attached to the other end of the turnbuckle body.

When setting this turnbuckle, release the ratchet mechanism temporarily, pull out the bar to the outside, and engage the rope or wire with the screw rod to cause the bar to enter the turnbuckle body. After removing the slack of the rope or wire, the turnbuckle body is rotated to give tension to the rope or wire.
JP-A-5-296296 (FIG. 1)

  In a conventional turnbuckle in which female screw portions in opposite directions are formed at both ends of the turnbuckle body, the distance between the tips of the two screw rods must be adjusted relatively accurately. In particular, when the interval is narrow, there arises a problem that the turnbuckle body cannot be screwed onto both screw rods.

  Also, the screws of the threaded rods must be in opposite directions, but it is difficult to distinguish the direction of the threaded portion at a glance from a distant position. There is a problem that you have to send.

  The turnbuckle described in the above publication is used by engaging a rope or wire with a short screw rod, and screwing the long screw rod into the turnbuckle body as in a construction site. In such a case, once the bar is inserted into the turnbuckle body, the bar does not come out of the turnbuckle body, so that the tip of the screw rod cannot be screwed into the turnbuckle body.

  Then, this invention makes it a subject to provide the turnbuckle which makes it easy to screw a screw rod with respect to a turnbuckle main body in view of said problem.

  In order to solve the above-mentioned problems, a turnbuckle according to the present invention is provided with a nut portion that engages with a screw rod at one end of a long turnbuckle main body, and a rod member that engages with the other end in a freely rotating and sliding manner. A joint is formed.

  Slide the turnbuckle body against the bar and retract the turnbuckle body from the screw rod. The turnbuckle body is slid in the reverse direction from the position once retracted, and the nut portion of the turnbuckle body is brought into contact with the tip of the screw rod. When the turnbuckle body is rotated in this state, the nut portion and the screw rod are screwed together, and the screw rod is drawn into the turnbuckle body.

  By the way, the turnbuckle body is formed of a hollow cylindrical body such as a cylinder or a square tube, and the nut part and the engaging part are both formed to be welded to the turnbuckle body. it can.

  In addition, if the turnbuckle body is formed with an opening in which the bar can be attached to and detached from the turnbuckle body with the engaging portion formed in the turnbuckle body, the turnbuckle body and the bar are separately provided in advance. You can make it.

  The turnbuckle body may be formed of a plate material surrounding the nut portion and the engaging portion.

  Thus, when the turnbuckle main body is formed of a plate material, the plate material has both a folded portion that prevents the nut portion and the engagement portion from coming out to the outside, and a nut member and an engagement portion. It is desirable to form a convex portion that prevents the inward movement.

  As is clear from the above description, the present invention is such that the turnbuckle body is formed to be slidable with respect to the bar material, so that the work of screwing the tip of the screw rod into the nut portion of the turnbuckle body is facilitated. It can be carried out.

  With reference to FIG. 1, a bar 2 is engaged with a turnbuckle main body 1 which is a main component of the turnbuckle according to the present invention, and a screw rod 3 is screwed into the turnbuckle main body 1. And the base end part of the bar 2 and the base end part of the screw rod 3 are bent in a U shape. And it is hooked on the engagement protrusions 21a and 31a fixed to the attachment plates 21 and 31, respectively.

  The mounting plates 21 and 31 are fixed to two points located on diagonal lines of a structure in which the beam member B is assembled in a rectangular shape. When the turnbuckle body 11 is rotated in the state shown in FIG. 1, the threaded portion 32 at the tip of the screw rod 3 is drawn into the turnbuckle body 1, and tension is generated between the bar 2 and the screw rod 3. In addition, 11 is a chamfering part for spanner hanging.

  Referring to FIG. 2, the turnbuckle main body 1 is composed of a hollow cylindrical material 12. And the engaging part 13 is welded to the lower end in the figure. This engaging portion 13 is inserted into the hollow cylindrical seat with the bar 2 inserted, and is caulked at the position of the arrow from the outer peripheral surface side of the hollow cylindrical member 12, and is firmly connected to the hollow cylindrical member 12 by welding. Has been.

  By the way, the tip of the bar 2 is pressed by pressing from both sides as shown in FIG. Therefore, after the engaging portion 13 is welded as shown in FIG. 2, the retaining portion 22 does not engage the engaging portion 13 and the bar 2 does not come out of the turnbuckle body 1.

  Further, a through hole 13 a is formed in the engaging portion 13, and the diameter of the through hole 13 a is set slightly larger than the diameter of the bar 2. Therefore, the turnbuckle body 1 can slide freely along the bar 2 in the vertical direction in FIG.

  A nut portion 14 is caulked at the upper end of the hollow cylindrical member 12 at the position of the arrow while being inserted into the hollow cylindrical member 12, and further welded. The nut portion 14 is screwed into the screw portion 32 of the screw rod 3. As shown by a two-dot chain line in FIG. 2, the turnbuckle main body 1 is slid downward in the drawing along the bar 2, and the nut portion 14 is positioned below the tip of the screw portion 32.

  Then, from this state, the turnbuckle body 1 is slid upward to rotate the turnbuckle body 1 while pressing the nut portion 14 against the tip of the screw portion 32. Then, the screw part 32 is screwed into the nut part 14, and the screw part 32 enters the turnbuckle body 1. When the turnbuckle body 1 is turned by hand until it cannot be turned, a spanner is put on the chamfered portion 11 and the turnbuckle body 1 is further rotated to generate an appropriate tension between the bar 2 and the screw rod 3.

  By the way, in the structure shown in FIG. 2, the bar 2 cannot be removed from the turnbuckle body 1. Therefore, as shown in FIG. 4, an opening 4 through which a spherical retaining portion 23 formed at the tip of the bar 2 can be taken in and out is formed on the side surface of the hollow cylindrical material 12. A groove 41 extending over the distance may be formed. By setting the width of the groove 41 slightly wider than the diameter of the bar 2, the bar 2 can be detached from the turnbuckle body 1 and attached. In the form shown in FIG. 4, the retaining portion 23 is formed into a spherical shape, and the spherical receiving portion 13 b is formed at the upper end portion of the through hole 13 a, so that the retaining portion 23 is not rotated when the turnbuckle body 1 is rotated. The engagement portion 13 is less likely to be caught. In each of the above embodiments, the hollow cylindrical member 12 is used, but a hollow rectangular cylinder such as a hollow hexagonal cylindrical body may be used.

  Another embodiment will be described with reference to FIG. In this embodiment, the plate material 5 is pressed to form five notches 51 on each side and two rows of positioning projections 53, each having six. Note that, by forming the notches 51, six folded portions 52 are formed on both sides of the plate material 5.

  Next, these folded portions 52 are bent 90 degrees and erected as shown. Then, the engaging member 61 and the nut member 62 are set between the raised folded portion 52 and the positioning projection 53. Both the engaging member 61 and the nut member 62 have a hexagonal outer shape. Moreover, although the through-hole 61a is formed in the engaging member 61, although not shown in figure in this through-hole 61a, the bar 2 is penetrated previously.

  When the plate member 5 is bent so that the engagement portion seat 61 and the nut member 62 are surrounded by the plate member 5, a hexagonal column-shaped turnbuckle body is formed as shown in FIG. In addition, what is necessary is just to weld between the fitting part of the board | plate material 5, and the folding | returning parts 52, or between the folding | returning parts 52, the engagement member 61, and the nut member 62 as needed.

  In addition, this invention is not limited to an above-described form, You may add a various change in the range which does not deviate from the summary of this invention.

The figure which shows the structure of one embodiment of this invention Sectional view showing the structure of the turnbuckle body The perspective view which shows the tip shape of a bar Sectional drawing which shows the structure of the turnbuckle main body in another form Development view showing the structure of the turnbuckle body in yet another embodiment Cross section

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Turnbuckle main body 2 Bar material 3 Screw rod 4 Opening 5 Board | plate material 11 Turnbuckle main body 12 Hollow cylindrical material 13 Engagement part 13a Through-hole 14 Nut part B Beam material

Claims (5)

  A turnbuckle characterized in that a nut portion that engages with a screw rod is provided at one end of a long turnbuckle main body, and an engaging portion is formed at the other end so that a bar can be rotated and slidably engaged.   2. The turnbuckle according to claim 1, wherein the turnbuckle body is formed of a hollow cylindrical body, and the nut portion and the engaging portion are both welded to the turnbuckle body.   The opening part which can attach or detach the said bar with respect to a turnbuckle main body in the state which formed the engaging part in the said turnbuckle main body was formed in the turnbuckle main body, The Claim 1 or Claim 2 characterized by the above-mentioned. Turnbuckle.   The turnbuckle according to claim 1, wherein the turnbuckle body is formed of a plate material surrounding the nut portion and the engaging portion. The plate member is formed with a folded portion for preventing both the nut portion and the engaging portion from slipping out to the outside, and a positioning projection for preventing both the nut member and the engaging portion from moving inward. The turnbuckle according to claim 4 characterized by things.

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