JP2009281423A - Mounting bracket for mounting object to be mounted to mounting rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting bracket capable of mounting a mounting object to a mounting rail with the mounting object mounted to the mounting bracket. <P>SOLUTION: The mounting bracket is provided with an inner frame body 20 having claw parts 21 which are formed in edge parts of both side wall parts 23 provided opposing to each other and are engaged with both side flange parts 1a of the mounting rail 1; and with an outer frame body 30 attached to and superposed on the outer side of the inner frame body 20 and having guide grooves formed on edge parts of both side wall parts 32 to guide the mounting rail 1 in a predetermined position. A lock part 34 for locking one end in the longitudinal direction of the inner frame body 20 is provided on the inner wall face of the outer frame body 30. With the one end of the inner frame body 20 locked on the lock part 34 of the outer frame body 30, the inner frame body 20 and the outer frame body 30 are fastened by a fastening tool 4. By using the one end as a fulcrum, the other end part of the inner frame body 20 is drawn toward the outer frame body 30 side, and the both side flange parts 1a of the mounting rail 1 are sandwiched by the claw parts 21 of the inner frame body 20 and bottom edges of the guide grooves of the outer frame body 30. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mounting bracket for mounting an electric device such as a motor control device to a mounting rail such as a DIN rail.

  Generally, in a control panel in which a large number of electrical devices for supplying and controlling electric power to FA devices, production facilities, etc. are mounted in a metal casing, the electrical devices are mounted using mounting rails called so-called DIN rails. There are many cases. The DIN rail is a rail whose dimensions are determined by German industrial standards and is a global standard.

Conventionally, when electrical equipment is mounted on this type of mounting rail, the mounting bracket is attached to the rail by assembling the mounting bracket formed with the engaging claws to the rail and pressing the screw mounted on the mounting bracket against the rail. (Patent Document 1) is known.
Attach the mounting brackets with the engaging claws to the rail, and press the two screws attached to the mounting brackets against the rail flanges to clamp the rail flanges between the engaging claws and the screws. The prior art (patent document 2) attached to the rail is known.
Furthermore, the main body fitting formed with the engaging claws is assembled to the rail, the fixing bracket having the guide groove formed outside the main body fitting is assembled, and the main body fitting and the fixing fitting are tightened with one screw. The prior art (patent document 3) which clamps a rail between an engaging claw and a guide groove of a fixing bracket and fixes the mounting bracket is known.
Japanese Utility Model Publication No. 55-46983 Japanese Utility Model Publication No. 1-79278 JP 2003-65306 A

However, in the case of Patent Document 1, since the mounting bracket is fixed by pressing a tightening screw against the rail, first the mounting bracket is attached to the rail as a single unit, and then the attached object is not attached to the mounting bracket. Don't be. This is because if the attachment object is first attached to the attachment fitting, the attachment object covers the screw body of the attachment fitting and cannot be attached to the rail. As described above, after attaching the mounting bracket to the rail alone, attaching the object to be mounted to the mounting bracket has a problem that workability is poor.
Further, in the case of Patent Document 2, there are the following problems if the structure is such that two screws are positioned on the flanges at both ends of the rail.
In other words, if two screws must be tightened with equal tightening torque, or if the object to be attached is larger than the mounting bracket, it must be fixed so that it is sandwiched between the two mounting brackets. In that case, there is a problem that the four screws must be tightened with a uniform tightening torque.
Furthermore, in the case of Patent Document 3, a nut for attaching an electric device must be separately assembled between the main body metal fitting and the fixing metal fitting, resulting in an increase in the number of parts. Also in this case, since the screws for fixing the main body bracket and the fixing bracket are provided at a position covered with the electrical equipment, the electrical equipment has to be attached to the mounting hardware after the mounting hardware is attached to the rail alone.

  The present invention solves the above-mentioned problem, and can attach an attached object to a mounting rail in a state where the attached object is attached to a mounting bracket, and an attached object that can be easily attached and detached with one fastener. An object is to provide a mounting bracket for mounting.

In order to solve the above-mentioned problem, the present invention is arranged in the direction crossing the mounting rail and on the edge of both side walls provided opposite to each other, on both side flanges of the mounting rail. An inner frame formed with engaging claws, and an outer formed by overlapping the outer side of the inner frame and guiding grooves at predetermined positions with respect to the mounting rail. In the mounting bracket for mounting the attachment object attached to the outer frame body to the mounting rail by fastening the inner frame body and the outer frame body via a fastener. A locking part for locking one end in the longitudinal direction of the inner frame is provided on the inner wall surface of the frame, and a fastener for fixing the other end in the longitudinal direction of the inner frame is mounted, and the outer frame In a state where one end of the inner frame is locked to the locking portion of the body, The inner frame body and the outer frame body are tightened with a tie, the other end portion of the inner frame body is drawn toward the outer frame body with the one end as a fulcrum, and the claw portion of the inner frame body and the guide of the outer frame body The both side flanges of the mounting rail are sandwiched by the bottom of the groove.
Moreover, this invention exists in the said latching | locking part being shape | molded by raising a part of wall surface of the said outer side frame.
Furthermore, the present invention lies in that the locking portion is formed to extend at a constant angle so as to form an acute slope toward the inner frame.

According to the present invention, the following effects can be achieved.
According to claim 1, the attachment object can be attached to the attachment rail in a state of being attached to the metal fitting and can be easily attached and detached with one fastener. Moreover, even if it is attachment with one fastener, sufficient clamping force can be obtained. That is, since the flanges on both sides of the mounting rail can be tightened with the same force, there is no possibility of coming off.
According to the invention of claim 2, it is easy to produce the engaging portion of the mounting bracket.
According to the invention of claim 3, the flanges on both sides of the mounting rail can be fixed with an equal tightening force.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments shown in the drawings will be described in detail with reference to the drawings.
1 is a perspective view showing a mounting bracket attached to a mounting rail, and FIG. 2 is an exploded perspective view of FIG. FIGS. 3A, 3B and 3C are side views showing a procedure for attaching to the mounting rail.

  1 to 3, reference numeral 1 denotes a mounting rail such as a DIN rail, and a mounting object 3 such as an electric device is assembled to the mounting rail 1 via a mounting bracket 2.

  The mounting bracket 2 is arranged in a direction intersecting at a substantially right angle with respect to the strip-shaped mounting rail 1 arranged in a substantially horizontal direction, and is attached to the flanges 1 a provided on both sides in the width direction of the mounting rail 1. It is assembled. The mounting bracket 2 is assembled with an inner frame 20 having a pair of claw portions 21 engaged with both side flanges 1a of the mounting rail 1 and the outer side of the inner frame 20, and the mounting rail. 1 and an outer frame 30 having a guide groove 31 assembled at a set position.

  The inner frame 20 has side wall portions 23 facing each other on both left and right sides of a long wall portion 22 having a dimension L1 in the longitudinal direction longer than a width dimension Lo of the mounting rail 1> L1> Lo. An engaging groove 24 having a fixed length is formed at the edge 23a of the both side wall portions 23, and the concave portion 24a and the claw portion 21 are formed so as to face each other at both upper and lower ends of the engaging groove 24. Is formed. A taper portion 24c is formed in the lower recess 24a of the engagement groove 24 so as to gradually widen at a constant angle toward the opening 24b between the claw portion 21 and the claw portion 21. The wall portion 22 of the inner frame body 20 is formed with a plurality of holes 25 in the longitudinal direction so that at least the screw heads can enter the lower side of the lower recess 24a of the engagement groove 24. A screw hole 26 is formed below 25.

  The outer frame 30 has side wall portions 32 facing each other on both the left and right sides of a long wall portion 31 having a dimension L2 in the longitudinal direction that is longer than the dimension L1 in the longitudinal direction of the inner frame body 20 (L2> L1). A guide groove 33 is formed at a position corresponding to the engagement groove 24 in the edge portion 32 a of the side wall portion 32. The guide groove 33 is constituted by a substantially trapezoidal notch portion whose opening side is formed on a wide slope. On the inner surface side of the wall portion 31 above the guide groove 33, a locking portion 34 for locking the one end 20a of the inner frame body 20 is provided. The locking portion 34 is formed by cutting and raising a part of the wall portion 31 into a U-shape, so as to form an acute slope toward the lower side so as to lock the one end 20a of the inner frame 20. It extends at a certain angle. A plurality of attachment holes (screw holes) 35 for attaching an electric device are formed at positions corresponding to the holes 25 in the wall portion 31 above the locking portion 34. A plurality of mounting holes (screw holes) 36 for mounting electrical devices are also formed in the wall portion 31 below the guide groove 33. A screw hole 37 corresponding to the screw hole 26 is formed on the end surface of the lower wall portion 31 with respect to the mounting holes (screw holes) 36. A screw 4 as a fastener is screwed into the screw hole 26 and the screw hole 37 and fastened to each other.

Next, the mounting procedure of the mounting bracket 2 will be described.
First, the mounting bracket 2 is assembled to an attachment 3 such as an electric device. As shown in FIG. 1, the attachment object 3 is fixed to the attachment holes (screw holes) 35 and 36 through the screws 5 (see FIG. 3C).

  Next, one end of the inner frame 20 is engaged with the locking portion 34 and temporarily fixed to the outer frame 30 to be assembled. Then, with the screws 4 loosened, the inner frame 20 is hooked on both side flanges 1a of the mounting rail 1 via a pair of claw portions 21, and the mounting bracket 2 is assembled to the mounting rail 1 (FIG. 3B). )reference). When the screw 4 is tightened in this state, the other end 20b of the inner frame 20 is drawn toward the outer frame 30 with the one end 20a of the inner frame 20 as a fulcrum. At this time, the lower flange portion 1a of the mounting rail 1 by the claw portion 21 of the inner frame body 20 and the bottom side 33a of the guide groove 33 of the outer frame body 30 is formed by the taper portion 24c of the lower recess portion 24a. Since a force that pushes upward acts, the inner frame 20 is drawn toward the outer frame 30 while being lowered downward. At this time, the outer frame 30 is positioned while moving so that the center position in the width direction of the mounting rail 1 coincides with the center position in the longitudinal direction of the guide groove 33 by the inclined surfaces 33b on both sides of the bottom 33a of the guide groove 33. . And the both side collar part 1a of the said mounting rail 1 is clamped by the pair of nail | claw part 21 of the inner side frame 20, and the base 33a of the guide groove 33 of the said outer side frame 30, and the mounting bracket 2 is fixed ( (See FIG. 3 (a)).

According to the embodiment, the inner frame body 20 and the outer frame body 30 are fastened by the single screw 4, so that the mounting bracket 2 is a pair of claws provided on the side walls 23 on both sides of the inner frame body 20. The portion 21 and the bottom side 33a of the guide groove 33 provided on the side wall portions 32 on both sides of the outer frame body 30 can be equally tightened and fixed. When the mounting bracket 2 is tightened with the screw 4, the other end 20b of the inner frame 20 is drawn toward the outer frame 30 with the one end 20a of the inner frame 20 as a fulcrum. 1 is in contact with the lower flange 1a.
At this time, the inner frame 20 moves while the tapered portion 24c of the lower concave portion 24a moves downward with respect to the lower flange portion 1a of the mounting rail 1, and the upper claw portion 21 of the mounting rail 1 The upper side collar 1a is engaged and attracted. Thus, the mounting bracket 2 is mounted with equal force by the pair of claw portions 21 provided on the side wall portions 23 on both sides and the bottom sides 33a of the guide grooves 33 provided on the side wall portions 32 on both sides of the outer frame 30. The rail 1 is assembled. In addition, since the attachment object 3 such as an electric device can be assembled to the mounting bracket 2 in advance, the assembling work for the mounting rail 1 can be easily performed. In particular, when the mounting rail 1 is attached to the wall surface and cannot be screwed from the mounting rail 1 side, it is necessary to assemble the attachment 3 such as an electric device to the mounting bracket 2 in advance. Therefore, the mounting bracket 2 of the present invention is effective.

  The present invention is not limited to the above embodiment. For example, when the support body 7 to which the circuit board 6 as shown in FIG. Can be assembled to the mounting bracket 2 with screws 8 in advance, and the support 7 can be assembled by assembling the mounting bracket 2 to the mounting rail 1. When the attachment 3 is a casing, the attachment 3 can be assembled by screwing from the inner surface side of the outer frame 30. In addition, the present invention can be implemented with appropriate modifications within a range not changing the gist of the present invention.

It is a perspective view which shows the attachment metal fitting for attaching the to-be-attached object by embodiment of this invention to the rail for attachment. FIG. 3 is an exploded perspective view of FIG. 2. The assembly procedure of the attachment bracket for attaching the to-be-attached object by the embodiment of this invention to the attachment rail is shown, (a) is a conceptual sectional view which shows the state which attached the attachment bracket to the attachment rail, (b) Is a conceptual cross-sectional view showing the process of assembling to the mounting rail, and (c) is a conceptual cross-sectional view showing the mounting bracket before being attached to the mounting rail. It is a perspective view which shows the attachment metal fitting for attaching the to-be-attached object attached to the board | substrate to the rail for attachment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting rail 2 Mounting bracket 3 Attached object (electric equipment)
4,5 screw 20 inner frame 21 claw part 22 wall part 23 side wall part 24 engagement groove 24a concave part 24c taper part 25 hole 26 screw hole 30 outer frame body 31 wall part 32 side wall part 33 guide groove 34 locking part 35, 36 Mounting hole (screw hole)
37 Screw holes

Claims (3)

  An inner frame body that is arranged in a direction intersecting with the mounting rails and that has claw portions that engage with both side flanges of the mounting rails at the edge portions of both side wall portions provided opposite to each other. And an outer frame that is assembled on the outer side of the inner frame and that has guide grooves formed at the edges of both side walls to guide the mounting rail to a predetermined position. In the mounting bracket for attaching the attachment attached to the outer frame to the mounting rail by fastening the outer frame and the outer frame via a fastener, the inner frame is attached to the inner wall surface of the outer frame. A locking portion for locking one end in the longitudinal direction of the inner frame body, and a fastener for fixing the other end portion in the longitudinal direction of the inner frame body are mounted, and the locking portion of the outer frame body is attached to the locking portion of the inner frame body. With one end locked, tighten the inner and outer frames with the fasteners. The other end of the inner frame is pulled toward the outer frame with the one end as a fulcrum, and the both sides of the mounting rail are separated by the claw portion of the inner frame and the bottom of the guide groove of the outer frame. A mounting bracket for mounting an object to be mounted to a mounting rail, characterized by sandwiching a portion.   The mounting bracket for mounting the attachment object to the mounting rail according to claim 1, wherein the locking portion is formed by cutting and raising a part of a wall surface of the outer frame body.   The attachment portion according to claim 2, wherein the locking portion is formed to extend at a constant angle so as to form an acute slope toward the inner frame. Mounting bracket.

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