JP2011002090A - Fixing elongate hole and fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems of a conventional means for adjusting the bolted position of a body by tightening the body to a bracket having an elongate hole with a bolt wherein since the fixing of the body with the bolt applies only the frictional force of the seat surface of the bolt generated by the tightening of the bolt to the body, the body is displaced in the direction of the elongate hole when the bolt is loosened or a load exceeding the frictional force of the seat surface is applied to the body.SOLUTION: Without relying upon only the frictional force of the seat surface of the bolt produced by the tightening of the bolt, irregularities are formed on an inner side surface of the elongate hole of the body, and a fixture with irregularities formed similarly on a side surface of an insertion part thereof is fastened, or is fitted to allow the bolt to be tightened, so that even if the axial force of the bolt is reduced, and the frictional force of the seat surface of the bolt is reduced, displacement in the direction of the elongate hole is mechanically prevented by the action of the irregularity parts where both the fixing elongate hole and the fixture are engaged with each other.

Description

  The present invention relates to a fixing long hole and a fixing jig for preventing displacement in a long hole direction at a place where a long hole is provided in order to adjust the position at the time of fastening in a building, a machine, a facility, or the like. .

  Conventionally, as a means for adjusting a bolt fastening position, a fastening position is adjusted and fixed by tightening a bolt at an arbitrary position in the long hole on a hardware provided with a long hole. However, when fixing only by bolt tightening, only the frictional force of the bolt bearing surface generated by tightening causes a loosening of the bolt or a large load in the direction of the elongated hole exceeding the bearing surface frictional force causes a shift in the elongated hole direction. There was a problem that it was.

  However, in recent years, a method of increasing the bearing surface friction force by applying high torque and high axial force using high tension bolts etc. has been taken for hardware with long holes used especially for construction. Because this method relies on the frictional force of the seating surface, it may cause a slip when a load exceeding the frictional force of the bolt seating surface due to looseness or a decrease in axial force is applied. Not reached.

  The problem to be solved is that, in order to fix the fastening position of the long hole, the conventional technique relies only on uncertain factors such as the frictional force of only the bolt seat surface caused by bolt fastening.

  In order to solve the above-mentioned problem, the fixing long hole and the fixing jig of the present invention are similarly provided in the fixing long hole processed so as to be uneven on the one side surface or both side surfaces inside the long hole. Even if the bolt axial force decreases and the frictional force of the bolt seat surface is reduced by inserting a fixing jig with unevenness on the side and tightening the bolt, the fixing elongated hole and the fixing jig It is characterized in that it is mechanically prevented from shifting in the direction of the long hole by the action of the uneven portion. The irregularities provided in the fixing long hole and the fixing jig are triangular irregularities in the drawing, but may be square or semicircular depending on the application.

  Further, the concave and convex portions provided in the fixing long hole and the fixing jig can be tightened like a bolt by providing an inclination.

  Furthermore, in these methods, the bolt fastening at an arbitrary position can be similarly performed without impairing the purpose of bolt fastening at an arbitrary position which is the original intention of the elongated hole.

  The fixing long hole and the fixing jig of the present invention can be mechanically obtained by inserting the fixing jig into the fixing long hole, inserting the bolt, and tightening, without relying only on the frictional force of the bolt seat surface by conventional bolt fastening. There is an advantage that displacement in the direction of the long hole can be prevented.

  By fitting the fixing jig into the fixing long hole, it becomes possible to prevent the displacement in the direction of the long hole without relying only on the frictional force of the bolt seat surface.

  Further, the uneven portion is not limited to the uneven portion in the vertical direction, and may be an uneven portion having an inclination.

  Hereinafter, the form of Example 1 of this invention is demonstrated based on FIGS.

  FIG. 1 is a perspective view of Embodiment 1 of the present invention. A fixing jig 3 is fitted into a fixing long hole 2 provided on the main body 1. Thereafter, the bolt 4 is passed through the hole opened in the fixing jig 3 and fastened to the fastened object 6. In the figure, the bolt 4 is fastened using the nut 5, but other than nut use such as fastening of the bolt to the tapped hole may be used.

  Similarly, a fixing jig 3 having an uneven portion 8 provided on one side surface or both side surfaces of the insertion portion is fitted in the uneven portion 7 provided on the inner side surface or both side surfaces of the fixing long hole 2. When fitted, the concavo-convex portion 7 in the fixing long hole 2 and the concavo-convex portion 8 in the insertion portion of the fixing jig 3 are engaged with each other and interfere with each other to prevent displacement in the direction of the long hole.

  As for the fixing jig, as shown in the perspective view of the fixing jig in FIGS. 3 and 4, the fixing jig washer portion 9 and the fixing jig insertion portion 10 are usually integrated, but a washer is not used or a special washer is used. Depending on the purpose of use, as shown in FIG. 5, it can be divided into a fixed jig washer portion 9 and a fixed jig insertion portion 10 and can be used only by the fixed jig insertion portion 10.

  Hereinafter, the form of Example 2 of this invention is demonstrated based on FIGS.

  FIG. 6 is a perspective view of Embodiment 2 of the present invention. The fixing jig 12 is tightened or fitted into the fixing long hole 11 provided on the main body 1. Thereafter, the bolt 4 is passed through the hole opened in the fixing jig 12 and fastened to the fastened object 6. In the figure, the bolt 4 is fastened using the nut 5, but other than nut use such as fastening of the bolt to the tapped hole may be used.

  Similarly, the fixing jig 12 provided with the concavo-convex portion 14 inclined on the one side surface or both side surfaces of the insertion portion is fastened to the inclined concavo-convex portion 13 provided on the inner one side surface or both side surfaces of the fixing long hole 11, or It ’s inset. When fitted, the concavo-convex portion 13 in the fixing long hole 11 and the concavo-convex portion 14 in the fixing jig 12 insertion portion are engaged with each other and interfere with each other to prevent displacement in the long hole direction.

  As for the fixing jig, as shown in the perspective view of the fixing jig in FIGS. 8 and 9, the fixing jig washer portion 15 and the fixing jig insertion portion 16 are usually integrated, but a washer is not used or a special washer is used. Depending on the purpose of use, as shown in FIG. 10, it can be divided into a fixing jig washer portion 15 and a fixing jig insertion portion 16 and used only by the fixing jig insertion portion 10.

Since the fixing long hole and the fixing jig according to the present invention are firmly prevented from shifting in the direction of the long hole as compared with the friction only method using the bolt seat surface currently used, the safety is greatly increased. In addition, it can be used in a wide range of fields in places where long holes are used during assembly, such as construction, machinery, and equipment.

It is a perspective view of the state where the long hole for fixation of Example 1 and the fixing jig were fastened with the volt | bolt. FIG. 3 is a perspective view of a fixing long hole according to the first embodiment. It is an upper surface perspective view of the fixing jig of Example 1. FIG. 3 is a bottom perspective view of the fixing jig according to the first embodiment. It is a washer part and insertion part division | segmentation state figure of the fixing jig of Example 1. FIG. It is a perspective view of the state where the long hole for fixation of Example 2 and the fixing jig were fastened with the volt | bolt. It is a perspective view of the elongate hole for fixation of Example 2. 6 is a top perspective view of a fixing jig of Example 2. FIG. It is a bottom perspective view of the fixing jig of Example 2. It is a washer part and insertion part division | segmentation state figure of the fixing jig of Example 2. FIG.

1, main body metal 2, fixing long hole 3 of Example 1, fixing jig 4 of Example 1, bolt 5, nut 6, object 7 to be fastened, fixing long hole uneven part 8 of Example 1, Example 1 Fixing jig uneven part 9 of Example 1, fixing jig washer part 10 of Example 1, fixing jig insertion part 11 of Example 1, fixing long hole 12 of Example 2, fixing jig 13 of Example 2, fixing of Example 2 Long hole uneven part 14, fixing jig uneven part 15 of Example 2, fixing jig washer part 16 of Example 2, fixing jig insertion part of Example 2

Claims (2)

  A fixing slot with unevenness on the side surface in the direction of the slot, and a fixing jig that prevents displacement in the slot direction by fitting into the slot.   A long slot for fixing with unevenness on the side and a fixing jig that prevents displacement in the direction of the long hole by tightening or fitting into the long slot for fixing.

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