JP6262802B2 - Bracing connection device and main body frame to which the bracing coupling device is fixed - Google Patents

Description

  In particular, the present invention relates to a bracing connection device for connecting braces to a body frame such as a temporary building or a scaffold, and a main body frame to which the bracing connection devices are fixed.

  As shown in FIG. 6, conventionally, the connection between the main body frame 1 and the brace 2 such as a temporary building or scaffolding is carried out on a male screw bolt (not shown) provided so as to protrude and be fixed to the main body frame 1. The opening formed in the end 2a of the brace 2 is inserted, the brace 2 is attached to the male screw bolt, the nut 3 is screwed into the male screw bolt, and the end 2a of the brace 2 is connected to the end 2a. They were connected by being sandwiched between the main body frame 1 and the nut 3.

  However, when the opening of the brace 2 is inserted into the male screw bolt, the thread of the male screw bolt may be rubbed and crushed, and a nut may not be screwed into the male screw bolt.

  Further, when plating the main body frame 1, there is a case where the screw groove of the male screw bolt fixed to the main body frame 1 is clogged and the threading is necessary again.

  The present invention eliminates the above-mentioned drawbacks.

The brace connecting device of the present invention includes a fixing bolt provided through a through hole provided from one side surface to the other side surface of the main body frame, and a rear end portion provided with the fixing bolt. A mounting rod having a female screw portion screwed to the tip end portion of the fixing bolt and a female screw portion at the tip portion; a male screw bolt screwed to the female screw portion of the tip portion of the mounting rod; fixed to the male threaded bolts, bracing which is mounted on the mounting rod, Ri Na more the pressing member sandwiching between said main body frame, the rear end face of the rear end of the mounting rod, and projects outwardly The provided protrusion is formed, and the protrusion is formed with a female screw portion that is continuous with the female screw portion, and has a shape that matches a through hole formed in one side wall of the frame. The shape of the protrusion and the through hole is the same as that of the fixing bolt. When rotated to be screwed to the serial mounting rod, the mounting rod is characterized Rukoto is formed in a shape not rotating together.

Moreover, the shape of the said protrusion part and the said through-hole is formed in the ellipse, the ellipse, or the polygonal shape .

  According to the present invention, the screw thread is not crushed and the screw groove is not clogged with plating.

It is the vertical side view which decomposed | disassembled the bracing connection apparatus of this invention. It is a vertical side view of the brace connecting device of the present invention. It is a rear view of the projection part of the brace connecting apparatus of this invention. It is a vertical side view of a male screw bolt and a pressing member of the brace coupling device of the present invention. It is explanatory drawing of the fixing method of the external thread volt | bolt of the bracing connection apparatus of this invention, and a pressing member. It is explanatory drawing of the main body frame with which the braces were connected.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 and 2, the brace coupling device of the present invention is formed on, for example, one side wall 1a of a rectangular cylindrical body frame 1 and the other side wall 1b opposite to the one side wall 1a. Further, a fixing bolt 5 provided so as to penetrate one and the other through holes 4a, 4b provided from one side surface to the other side surface of the main body frame 1 from one side surface to the other side surface thereof. The rear end 6b has a female screw portion 7 extending in the axial direction from the rear end face of the rear end 6b and screwed into the front end 5a of the fixing bolt 5, and the front end 6a has the front end A columnar mounting rod 6 for inserting a brace having a female screw portion 8 extending in the axial direction from the distal end surface of the portion 6a, and a male screw bolt 9 screwed to the female screw portion 8 of the distal end portion 6a of the mounting rod 6 And inserted into the mounting rod 6 fixed to the male screw bolt 9. Is, the loaded brace 2, the more the pressing member 10 sandwiching between the main frame 1.

  Moreover, as shown in FIGS. 1-3, the collar part 11 is formed in the outer peripheral surface of the rear-end part 6b of the said attachment collar 6. As shown in FIG. The flange 11 may be omitted.

  In addition, a positioning projection 12 is provided on the rear end surface of the rear end portion 6b of the mounting rod 6 so as to protrude outward. The projection 12 is continuous with the female screw portion 7. A female screw portion 7a is formed.

  As shown in FIG. 3, the shape of the protrusion 12 is formed in a shape that matches the through hole 4 a formed in one side wall 1 a of the main body frame 1. The shape of the protrusion 12 and the through hole 4a of the main body frame 1 is such that the mounting rod 6 does not rotate when the fixing bolt 5 is rotated to screw into the mounting rod 6. It is preferably formed in a shape other than a circle, for example, an ellipse, an oval, or a polygon.

  Further, as shown in FIG. 4, for example, the pressing member 10 includes a disk-shaped fixing portion 10a fixed to the base portion 13a of the bolt portion 13 of the male screw bolt 9 by, for example, welding, and the fixing portion 10a. The bolt portion 13 of the male screw bolt 9 extending in the tip direction along the axial direction of the bolt portion 13 from the peripheral portion of the bolt portion and a cylindrical presser piece 10b having an inner peripheral surface spaced apart by a desired distance. .

  The desired distance is a space that allows the mounting rod 6 to be inserted into the cylindrical holding piece 10b when the tip 13b of the bolt portion 13 of the male screw bolt 9 is screwed into the mounting rod 6. Formed to be.

  That is, the inner diameter of the cylindrical pressing piece 10 b is formed larger than the outer diameter of the mounting rod 6.

  In addition, 9a is a head part of the male screw bolt 9, and 14 is a welded part formed on the bolt part 13 and the fixing part 10a.

  For example, as shown in FIG. 5, the male screw bolt 9 and the pressing member 10 are provided with a screw hole 15 penetrating in the center of the disk-shaped fixing portion 10a of the pressing member 10, and the screw hole 15 The male screw bolt 9 is screwed together, and as shown in FIG. 4, the base portion 13a of the bolt portion 13 of the male screw bolt 9 and the fixing portion 10a of the holding member 10 are welded and fixed. Also good.

  Next, a method for manufacturing a main body frame to which the brace connecting device of the present invention is fixed will be described.

  First, only the main body frame 1 having the through holes 4a and 4b is plated, and then the protrusion 12 of the mounting rod 6 is fitted and positioned in the through hole 4a of the main body frame 1 to fix the fixing bolt. 5 is inserted from the other through hole 4b side of the other side wall 1b of the main body frame 1, and the tip 5a of the fixing bolt 5 is screwed into the female screw holes 7a, 7 of the mounting rod 6. Then, the mounting rod 6 is fixed to the main body frame 1 by tightening.

  Thereby, after the main body frame 1 is plated, the attachment rod 6 can be fixed to the main body frame 1, so that the plating does not enter into the female screw portion of the attachment rod 6.

  Then, as shown in FIG. 2, the opening 16 of the end 2a of one or more braces 2 is inserted into the attachment rod 6, the brace 2 is attached to the attachment rod 6, and the attachment A male screw bolt 9 to which the presser member 10 is fixed is screwed into a desired range with the female screw part 8 of the flange 6, and the end 2 a of the brace 2 is the presser piece 10 b of the main body frame 1 and the presser member 10. The brace 2 is connected to the main body frame 1 by being positioned between them.

  The male screw bolt 9 may be screwed in until the end 2a of the brace 2 is pressed by the presser piece 10a. Alternatively, the male screw bolt 9 may be spaced apart from the main body frame 1 without being pressed. You may make it locate between the front-end | tip parts of the said holding piece 10a.

  If the brace connecting device of the present invention is used, the thread is not crushed even when the brace 2 is mounted.

  In addition, since the fixing bolt 5 is used to fix the attachment rod 6 of the brace coupling device to the main body frame 1, the main body frame 1 can be coated with plating before fixing the attachment rod 6 to the main body frame 1. The screw groove in the screw part is not clogged.

  Further, even when the brace connecting device breaks down, it is possible to replace the mounting rod 6 only by removing the fixing bolt 5, so that it is not necessary to plate the main body frame 1 again.

DESCRIPTION OF SYMBOLS 1 Main body frame 1a One side wall 1b The other side wall 2 Bracing 2a End part 3 Nut 4a Through-hole 4b Through-hole 5 Fixing bolt 5a Tip part 6 Mounting rod 6a Tip part 6b Rear end part 7 Female thread part 7a Female thread part 8 Female screw part 9 Male screw bolt 9a Head part 10 Holding member 10a Fixing part 10b Pressing piece 11 Hook part 12 Projection part 13 Bolt part 13a Base part 13b Tip part 14 Welding part 15 Screw hole 16 Opening part

Claims (2)

A fixing bolt provided in a through hole provided from one side surface of the main body frame to the other side surface and penetrating from the other side surface to the one side surface;
A mounting rod having a female screw portion screwed into the front end portion of the fixing bolt at the rear end portion and a female screw portion at the front end portion;
A male screw bolt to be screwed into the female screw portion at the tip of the mounting rod;
Fixed to the male threaded bolts, bracing which is mounted on the mounting rod, Ri Na more the pressing member sandwiching between said body frame,
On the rear end surface of the rear end portion of the mounting rod, a protruding portion that protrudes outward is formed. The protruding portion is formed with a female screw portion that is continuous with the female screw portion. It is formed in a shape that matches the through-hole formed in one side wall of the frame,
Projecting the shape of the raised portion and the through hole, the fixing bolt when rotated to be screwed to the mounting rod, struts connecting device the mounting rod is characterized Rukoto is formed in a shape that does not rotate together . The bracing connection device according to claim 1 , wherein the shape of the protrusion and the through hole is an ellipse, an oval, or a polygon .

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