JP2005048871A - Nut for rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nut for a rail used when attaching parts (electrical equipment) in a control panel such as stabilization power supply, a breaker, and a sequencer which are heavy objects as well as a capacitor and switches to the rail detachably and capable of eliminating the possibility that a cylindrical part is caught in a long hole and moving smoothly for the rail. <P>SOLUTION: This nut for the rail is composed of a base part 2 inserted and locked in a locking channel 54 of the rail 50, a rising part 3 formed on the halfway of it by rising, the cylindrical part 4 formed at substantially center of it by protruding downward and preventing its lower face 9 from protruding from a lower face 10 of the base part 2, and a female screw 5 formed in it. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is, for example, a rail nut (hereinafter referred to as a nut for rails) that is used when a capacitor (switch) and other components in the control panel (electrical equipment) such as a stabilized power source, a breaker, and a sequencer are detachably attached to the rail. (Simply called nuts).

As a rail used in the control panel, for example, a reinforced din rail (hereinafter simply referred to as a rail) obtained by strengthening a general din (DIN) rail described in Patent Document 1 is known.
The rail 50 is designed to stably attach relatively heavy control panel components by increasing the section modulus without increasing the outer diameter of the conventional rail. 8, a base 51 having a substantially U-shaped cross section, left and right outer flanges 52 extending outward from both ends thereof, and left and right inner flanges 53 extending inward from both ends of the base 51 continuously. , And a locking groove 54 formed by the base 51 and an appropriate number of long holes 55 formed at predetermined intervals in the longitudinal direction of the base 51.

Thus, such a rail is installed in the control panel by using bolts or the like using a long hole, and a terminal block suitable for this width is installed using a locking groove, or a bolt and a nut are attached to the rail. Therefore, components in the control panel, which are heavy objects such as a stabilized power source, a breaker, and a sequencer, are mounted along the center line of the rail.
At this time, the nuts shown in FIGS. 6 to 8 were used. The nut 100 includes a base plate portion 101 having a substantially rectangular plane shape, a cylinder portion 102 formed so as to project downward substantially at the center thereof, and a female screw 103 formed therein. It was made to insert into the locking groove 54 from the end face side. That is, the nut 100 uses a thin iron plate to be inserted into the narrow locking groove 54 of the rail 50, and performs so-called counter sink molding to increase the number of threads of the female screw 103. The cylindrical portion 102 protrudes downward from the substrate portion 101.

JP 2003-65306 A

  However, such a nut 100 has a relatively simple structure, but the cylindrical portion 102 protrudes downward from the base plate portion 101, so that the cylindrical portion 102 extends into the elongated hole 55 of the rail 50 as shown in FIG. There was a difficulty that it could not move smoothly due to being caught.

  The present invention was devised in order to solve this problem, and the problem is that the cylindrical portion is not likely to be caught in the long hole of the rail, and The object is to provide a rail nut that can be moved smoothly.

  The rail nut of the present invention includes a base plate portion that is inserted and locked into the rail locking groove, a raised portion that is formed to rise in the middle of the base plate portion, and a lower protrusion substantially at the center of the raised portion. It is characterized in that it is composed of a cylindrical portion formed so that its lower surface does not protrude from the lower surface of the substrate portion, and a female screw formed in the cylindrical portion.

  The cylindrical portion is formed with respect to the substrate portion via a raised portion, and the lower surface thereof is prevented from projecting downward from the lower surface of the substrate portion. That is, the lower surface of the cylindrical portion is positioned flush with or above the lower surface of the substrate portion. For this reason, the cylindrical portion is not caught in the long hole of the rail, and the nut can be smoothly moved with respect to the rail.

  The board portion has a substantially rectangular shape in a plane, a short side that can be inserted into the locking groove from above the rail, a long side that can be locked in the locking groove of the rail and can be rotated, and a pair of diagonals It is preferable to include a circular arc portion that is formed by notching the portion and that allows a substantially perpendicular rotation. In this way, not only can the nut be inserted into the locking groove from the end face side of the rail, but also the nut can be inserted into the locking groove from above the rail. When the nut inserted into the locking groove from the top of the rail is rotated about the vertical axis by a substantially square angle, further rotation is prevented and so-called rotation is stopped, and against the locking groove It is locked in the vertical direction to prevent so-called removal. Therefore, even if the bolt is screwed into the nut and rotated, the bolt can be tightened without the nut rotating together.

  The female screw is a right-hand screw, and the arc portion is preferably formed at the corner between the short side and the long side in the clockwise direction. In this way, a normal right-hand screw bolt can be used, and a substantially perpendicular rotation to the right can be allowed, and subsequent rotation can be performed.

As described above, according to the present invention, the following excellent effects can be obtained.
(1) Consists of a substrate portion, a raised portion, a cylindrical portion, and a female screw. In particular, the cylindrical portion is provided on the substrate portion via the raised portion, and the lower surface of the cylindrical portion is not protruded from the lower surface of the substrate portion. Therefore, there is no possibility that the tube portion is caught in the long hole of the rail, and the tube portion can move smoothly with respect to the rail.
(2) Since the cylindrical portion is provided on the substrate portion via the raised portion and the lower surface of the cylindrical portion is not protruded from the lower surface of the substrate portion, it can be easily manufactured by press working, and the cost is high. There is no sticking.
(3) A pair of a short side that has a substantially rectangular plane shape and can be inserted into the locking groove from above the rail, and a long side that can be locked in the locking groove of the rail and that can be rotated. In addition to inserting the nut into the locking groove from the end surface side of the rail, the nut can be inserted into the locking groove. Can be inserted into the locking groove from any position above the rail. Further, when the nut is rotated by a substantially square angle after being inserted, further rotation is prevented and so-called rotation is stopped, and the rotation is locked to the locking groove and so-called retaining is prevented. Therefore, even if the bolt is screwed into the nut and turned, the bolt can be tightened without the nut rotating together, and this kind of tightening operation can be easily performed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view from the bottom showing a nut of the present invention. FIG. 2 is a longitudinal front view showing a state in which the nut of the present invention is inserted into the rail. FIG. 3 is a plan view of FIG. FIG. 4 is a plan view showing a state in which components in the control panel are attached. FIG. 5 is a longitudinal front view of FIG.

  The main part of the nut 1 is composed of the base part 2, the raised part 3, the cylindrical part 4, and the female screw 5, and is used when attaching the control panel internal component 60 to the rail 50.

In this example, the rail 50 is a reinforced din (DIN) rail, is made of a metal such as an aluminum alloy, and has a base 51 having a substantially U-shaped cross section and left and right sides extending from both ends thereof (see FIG. 2) and the left and right inner flanges 53 extending inwardly from both ends of the base 51, and the relationship between the outer flange 52 and the left and right inner flanges 53 extending substantially inward. A stop groove 54 and an appropriate number of long holes 55 having a circular track shape formed at predetermined intervals in the longitudinal direction of the base 51 are provided.
That is, the rail 50 forms a base 51 with the bottom wall and left and right side walls extending upward from both left and right ends of the rail 50, and also forms an outer flange 52 by the left and right outer upper walls extending outward from the upper end of each side wall. And the inner flange 53 is formed by the left and right inner upper walls extending inward from the upper end of each side wall, the outer flange 52 and the inner flange 53 are continuous, and the upper surface thereof is flush. A long hole 55 is formed in the bottom wall.
The long hole 55 is for inserting a fixing tool (not shown) such as a screw or a bolt when the rail 50 is fixed to a predetermined mounting location in the control panel.

  In this example, the control panel internal component 60 is a stabilized power source, has a substantially cubic shape and includes the necessary wiring 61, and has a pair of left and right mounting pieces 62 on the rail 50. It is supposed to be placed. Thus, the mounting piece 62 has a mounting hole 63 through which a bolt (round countersunk screw) 70 is inserted.

  The board portion 2 is inserted and locked in the locking groove 54 of the rail 50, has a substantially planar shape, and has a short side 6 that can be inserted into the locking groove 54 from above the rail 50, and the rail 50. A long side 7 that can be locked in the locking groove 54 and that can be rotated, and a circular arc portion 8 that is formed by notching a pair of diagonal portions and that allows a substantially perpendicular rotation. . The arc portion 8 is formed at the corner between the short side 6 and the long side 7 in the clockwise direction. In FIG. 1, it is formed at the upper and lower corners.

  The raised portion 3 is formed so as to be raised in the middle of the substrate portion 2. In this example, the raised portion 3 has a planar circular shape, the thickness of which is the same as the thickness of the substrate portion 2, and its maximum diameter. Is the same as the length of the short side 6 of the board portion 2 and smaller than between the inner flange portions 53 of the locking groove 54 of the rail 50, and the raised height is the thickness (height of the inner flange portion 53. ) Smaller.

  The cylindrical portion 4 is formed so as to project downward substantially at the center of the raised portion 3 so that the lower surface 9 thereof does not protrude from the lower surface 10 of the substrate portion 2. In this example, the cylindrical portion 4 and the lower surface 9 of the cylindrical portion 4 The lower surface 10 of the substrate unit 2 is flush with the surface.

  The female screw 5 is formed in the cylindrical portion 4 and is a right screw in this example.

  Thus, the length of the short side 6 of the nut 1 is A, the length of the long side 7 of the nut 1 is B, the thickness (height) of the nut 1 is C, and the radius of the arc portion 8 of the nut 1 is D. The maximum diameter of the raised portion 3 of the nut 1 is E, the raised height of the raised portion 3 of the nut 1 is F, the distance between both inner flange portions 53 of the rail 50 is G, and the thickness of the inner flange portion 53 of the rail 50 is Assuming that (height) is H, the maximum width of the locking groove 54 of the rail 50 is I, and the height between the bottom wall of the locking groove 54 of the rail 50 and the inner flange 53 is J, A <G, B> G , B <I, C <J, E <G, E ≦ A, and F <H. Actually, A = 15 mm, B = 22 mm, C = 1.6 mm, D = 4 mm, E = 15 mm, F = 1.2 mm, G = 16 mm, H = 1.5 mm, I = 24 mm, J = 3.9 mm.

Next, the operation will be described based on such a configuration.
As shown in the upper half of FIG. 3, the nut 1 is positioned above the rail 50, and when the direction of the long side 7 is lowered along the locking groove 54 of the rail 50, the nut 1 is locked from above the rail 50. It is inserted into the groove 54. After that, when it is rotated about the vertical axis by 90 degrees to the right (clockwise indicated by the arrow in FIG. 3), the direction of the long side 7 is the direction of the rail 50 as shown in the lower half of FIG. The substrate part 2 is in a state in which it can be locked to the inner flange 53 of the locking groove 54 perpendicular to the locking groove 54. At this time, since the arc portion 8 is formed at the corner between the short side 6 and the long side 7 in the clockwise direction of the nut 1, the nut 1 can be rotated without contacting the side wall of the rail 50. Of course, the nut 1 can also be inserted into the locking groove 54 from the end face side of the rail 50 in the posture shown in the lower half of FIG.

When the two nuts 1 are in the lower half of FIG. 3, the control panel internal component 60 is placed on the upper surface of the outer flange portion 52 and the inner flange portion 53 of the rail 50 as shown in FIGS. 4 and 5. At the same time, the bolt 70 is inserted into the mounting hole 62 and screwed into the female screw 5 of the nut 1. Then, when the bolt 70 is tightened by a tightening tool such as a screwdriver, the nut 1 turns slightly clockwise by the gap between the nut 1 and the locking groove 54 of the rail 50, and then the corners other than the arc portion 8 are rotated. Further contact with the side wall of the rail 50 is prevented, so-called rotation is prevented. For this reason, it is not necessary to hold the nut 1 so that it does not rotate together, and the bolt 70 can be easily tightened.
At this time, the raised portion 3 of the nut 1 is positioned between the inner flange portions 53 of the rail 50 and the height of the raised portion is smaller than the thickness of the inner flange portion 53. There is no possibility of hitting the flange 53 or hitting the parts 60 in the control panel and hindering tightening.

  Further, since the protruding portion 3 of the nut 1 is positioned between the inner flange portions 53 of the rail 50, when the nut 1 is moved along the locking groove 54 of the rail 50, the inner flange portion 53. Functions as a guide means.

  The cylindrical portion 4 is formed with respect to the substrate portion 2 via the raised portion 3, and the lower surface 9 thereof is flush with the lower surface 10 of the substrate portion 2 so as not to protrude downward. For this reason, the cylindrical portion 4 is not caught in the long hole 55 of the rail 50, and the nut 1 can be smoothly moved with respect to the rail 50.

  In the previous example, the lower surface 9 of the cylindrical portion 4 is flush with the lower surface 10 of the substrate portion 2. However, the present invention is not limited to this. For example, the lower surface 9 is positioned above the lower surface 10 of the substrate portion 2. May be.

The perspective view from the bottom which shows the nut of this invention. The longitudinal section front view showing the state where the nut of the present invention was inserted in the rail. The top view of FIG. The top view which shows the state which attached the components in a control panel. FIG. 5 is a longitudinal front view of FIG. 4. The perspective view from the bottom which shows the conventional nut. The longitudinal section front view which shows the state which inserted the conventional nut in the rail. FIG. 8 is a plan view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Nut, 2 ... Board | substrate part, 3 ... Raised part, 4 ... Cylindrical part, 5 ... Female screw, 6 ... Short side, 7 ... Long side, 8 ... Arc part, 9 ... Bottom surface of cylindrical part, 10 ... Substrate part , 50 ... rail, 51 ... base, 52 ... outer flange, 53 ... inner flange, 54 ... locking groove, 55 ... oblong hole, 60 ... inner part of control panel, 61 ... wiring, 62 ... mounting piece, 63 ... Mounting hole, 70 ... Bolt, 100 ... Nut, 101 ... Substrate part, 102 ... Cylinder part, 103 ... Female screw, A ... Length of short side of nut, B ... Length of long side of nut, C ... N: Thickness of the nut, D: Radius of the arc of the nut, E: Maximum diameter of the raised portion of the nut, F: Height of the raised portion of the nut, G: Distance between the inner flanges of the rail, H: Rail The thickness of the inner flange portion, I: the maximum width of the locking groove of the rail, J: the height between the bottom wall of the locking groove of the rail and the inner flange.

Claims (3)

A base plate portion inserted into the rail locking groove and locked, a raised portion formed so as to rise in the middle of the base plate portion, and a lower surface of the base portion formed by projecting substantially at the center of the raised portion. A rail nut comprising: a cylindrical portion that does not protrude from the lower surface of the portion; and a female screw formed on the cylindrical portion. The board portion has a substantially rectangular shape in a plane, a short side that can be inserted into the locking groove from above the rail, a long side that can be locked in the locking groove of the rail and can be rotated, and a pair of diagonals The rail nut according to claim 1, further comprising: an arc portion that is formed by notching the portion and that enables a substantially perpendicular rotation. The rail nut according to claim 1, wherein the female screw is a right screw and the arc portion is formed at a corner portion between the short side and the long side in the clockwise direction.

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