JPS6286799A - Apparatus for attaching rail of electric machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mounting structure for electrical equipment using a DIN rail.

[Conventional technology]

Conventional mounting structures of this type are shown in Figures 4, 5, and 6.
As shown in the figure, a groove 3 for housing the rail 1 on the back side of the device 2
A fixed pawl 4 is provided on one side of the groove 3, and a movable pawl 5 that moves forward and backward in a direction perpendicular to the groove 3 via an elastic arm 51 is provided on the other side. The equipment 2 is held on the rail 1 by pressing and holding edges 101 protruding from both sides of the rail 1.

[Problem that the invention seeks to solve]

However, in this conventional device, the rail 1 and the claw 4.5 are both rigid bodies, and the friction coefficient between the rail 1 and the claw 4.5 is small, for example, the rail 1 is made of aluminum, and the claw 4.5 is made of polyacetal. Due to the combination of the fact that it is made of resin and the large variations in the plate thickness of the rail 1, it is difficult to expect that the holding force in the longitudinal direction of the rail 1 will be particularly strong.
The device 2 easily slides on the rail 1 in the longitudinal direction (fourth direction) and falls off the rail 1, and the 811M2 rattles on the rail 1.

This invention was made to solve the above problems. This prevents electrical equipment from sliding in the longitudinal direction of the rail after the equipment is mounted on the rail.

[Means for solving problems]

The rail mounting device for electrical equipment according to the present invention has a cross section of U
In the case where electrical equipment is mounted on the rail by sandwiching the shaped rail from both sides using a fixed claw and a movable claw, a female thread is provided in the middle of the movable claw, and a screw inserted into the female thread is provided on the bottom side of the equipment. A screw is inserted through the hole, and the edge of the rail is clamped between the movable claw and the bottom of the device.

[Effect]

In this invention, by screwing the screw through the hole in the bottom of the device and into the female thread of the movable claw, the movable claw is drawn toward the bottom of the device, tightly clamping the edge of the rail, and the electric device is placed on the rail. Prevent rattling or sliding.

[Embodiment] An embodiment of the present invention will be described below based on FIGS. 1(A) and 3(B), FIGS. 2 and 3. In the figure, reference numeral 5 denotes a movable claw inserted into the hole 8 of the m-unit 2 from the direction of the arrow E, and the movable claw 5 is provided with a female thread 52 and an elastic arm 51. Reference numeral 6 denotes a hole through which the female thread 7 is inserted, and is provided corresponding to the female thread 52 of the movable claw 5. In other words, when the electrical equipment 2 is attached to the rail 1, the female thread 5
2 and 66 are set to match. The rest of the configuration is the same as the conventional one, so the explanation will be omitted.

Next, the manner in which the electrical equipment 2 in the above configuration is attached to the rail 1 will be explained. As shown in FIG. 2, hook the fixing claw 4 on one edge 101 of the rail 1 in the direction of arrow A, and
When pushed in the direction of arrow B, the movable claw 5 moves back and forth in the direction of arrow C to pass the other edge 101 of the rail 1, and as shown in FIG. The device 2 is pressed and clamped, and the device 2 is mounted on the rail 1.

Next, as shown in the third figure, insert the screw 7 into the hole 6 from the direction of the arrow F so that it appears on the female thread 52 of the movable claw 5, and then tighten the screw 7. Then, the movable claw 5 is pulled up in the direction of arrow G, and the rail 1 is firmly clamped and held between the movable claw 5 and the bottom surface of the groove 3 of the m-shaped device 2. In other words, the equipment 2 is firmly held on the rail 1.

〔Effect of the invention〕

According to this invention, the equipment 2 is connected to the rail 1 as in the conventional one.
The equipment 2 will not slide on the rail 1 and fall off the rail 1, nor will the equipment 2 rattle on the rail 1. Furthermore, in the conventional system, it was impossible to install the rail 1 vertically because the equipment 2 would slide and fall due to gravity, but according to the present invention, the equipment 2 is firmly held on the rail 1. Vertical installation of the rail 1 is also possible, and the flexibility of installation is dramatically expanded.

[Brief explanation of drawings]

Figures 1 (a), (b), 2 and 3 show an embodiment of the present invention. Figure 1 (a) is a perspective view of the bottom of the device, and (b) shows the main parts Figures 2 and 3 are cross-sectional views showing the mounting structure, Figures 4, 5, and 6 show conventional devices of this type, and Figure 4 is a perspective view of the rail. 5 is a perspective view of the movable claw portion, and FIG. 6 is a sectional view showing the mounting structure. In the diagram, 1 is the rail, +01 is the edge, 2 is the equipment, 3 is the groove, 4
5 is a fixed claw, 5 is a movable claw, 51 is an elastic arm, 52 is a female thread,
6 is a hole and 7 is a screw. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] In a rail mounting device for electrical equipment, in which an electrical device is held on the rail by pressing and pinching the protruding edges on both sides of the rail between a fixed claw and a movable claw, the movable claw is provided with a female thread, and the movable claw is provided with a female thread. A screw insertion hole is provided on the bottom of the device that corresponds to the screw, and a screw is fitted from the outside into this screw insertion hole and the above female thread, and tightened to pull the movable claw toward the bottom of the device, thereby connecting the bottom of the device and the movable claw. A rail mounting device for electrical equipment, characterized in that the edge of the rail is clamped and clamped by and.