JPH0147851B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to equipment for mounting rails on distribution boards and the like.

[Background technology]

In distribution boards, etc., rails are laid on the main body, and devices such as electromagnetic contactors are attached to the rails. by the way,
When attempting to connect, for example, a thermal relay to a device mounted on this rail, conventionally a metal plate fixed to the thermal relay with screws or the like was attached to an electromagnetic contactor, resulting in the following drawbacks. That is, it is not possible to remove two devices from the rail while the two devices are still connected. In addition, it is necessary to have a complicated structure so that the metal plate to which the two devices are attached can be attached to the rail.

[Purpose of the invention]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a rail mounting device that has a simple configuration, allows two devices to be easily attached and detached, and allows both devices to be attached and detached from a rail at the same time in a connected state.

[Disclosure of the invention]

This invention includes forming a pair of hook pieces on the bottom of the first device to be hooked to the collar of the rail, imparting elasticity for expansion to one of the hook pieces, and forming an engagement recess for removal in the elastic hook piece. is opened on the outer surface of the first device, and the second device is brought into contact with the outer surface of the first device to interconnect the upper ends, and a guide groove is formed on the mounting surface, and a guide groove is formed in the mounting surface. The connection plate is slidably supported, an end of the connection plate is hooked into the detachment engagement recess, and the other end projects outward to form an operation hook. Therefore, the two devices can be easily attached and detached, and by pulling the hook portion of the connection plate, the two devices can be easily attached to and detached from the rail while being connected. Moreover, the structure is simple.

An embodiment of the invention is shown in FIGS. 1 to 6. In other words, 1 is the rail, 2 is the electromagnetic contactor, and 3 is the rail.
is a protective relay, and the mounting surface 2a of the electromagnetic contactor 2
Ribs 4 are provided on both sides with a spacing of the rail width,
One of the ribs 4 has a hook piece 5 projecting inward to form a hook recess 6 between the hook piece 5 and the mounting surface 2a. A notch 7 is formed in the center of the other rib 4, and two elastic legs 8 are integrally suspended from the bottom of the notch 7, and a hook 9 is integrally connected to the elastic leg 8. A hook recess 10 is formed between the hook 9 and the mounting surface 2a of the electromagnetic contactor 2, and a removal hole 11 is formed in the center of the hook 9. Furthermore, a tapered groove 12 is formed from the notch 7 to the outer surface of the electromagnetic contactor 2, into which a screwdriver or the like can be inserted into the removal hole 11. In addition, 13 is a terminal, 14 is an operation button, and 15 is a mounting hole for mounting other than the rail 1. When installing this electromagnetic contactor 2 on the rail 1, insert a jig such as a screwdriver into the removal hole 11 using the tapered groove 12, so that the hook piece 9 is attached to the mounting surface 2a.
The elastic leg 8 is elastically deformed so as to open from the rail 1.
The hooking recesses 6 and 10 are engaged with the collar 16. Perform the same operation when removing.

The thermal relay, which is the protective relay 3, has a receiving terminal 14 protruding from its upper end side, a slip-preventing protrusion 18 integrally projecting from its lower end, and a guide groove 19 formed in the mounting surface 3a. The guide groove 19 has a pair of support protrusions 19a, 19b formed on both end sides opening to the side surface of the thermal relay (3), and a notch 20 formed on the side surface on the contact side of the electromagnetic contactor 2. Further, 21 is a terminal, 22 is a reset button, 23 is an operation indicator light, 24 is a set value adjustment knob, and 25 is a mounting hole.

When attaching this thermal relay (3) to the electromagnetic contactor 2, the connecting plate 26 is slid into the guide groove 19. The connection plate 26 has hooks 27 and 28 bent at both ends, and the engagement hook 27 is inserted into the removal hole 1.
1 as shown in Figure 5. At this time, the bent portion 28a of the operating hook portion 28 is hooked on the corner of the thermal relay (3). Further, the receiving terminal 17 is inserted into the terminal 13 of the electromagnetic contactor 2, and the terminal screw is tightened to electrically and mechanically connect the terminal 17 to form an integral unit. in this case,
Since the receiving terminal 17 is relatively flexible and this connecting part can be rotated within a small range, the receiving terminal 17 is connected first and then the connecting plate 26 is inserted into the removal hole 11. It can also be installed.

In addition, when installing the magnetic contactor 2 on the rail 1 with the magnetic contactor 2 and the thermal relay (3) integrated, the driver P is inserted into the protruding terminal block 2 as shown in Figure 2.
1a, the tip of the driver P is hooked on the hook 28 of the connection plate 26, and when rotated as shown by the arrow in FIG. 2, the connection plate 26 is pulled in the direction of the arrow by the lever action, and the elastic hook Deflect the piece 9 outward and remove it from the rail 1. The same applies when the electromagnetic contactor 2 and the thermal relay (3) are removed from the rail 1 as a unit.

With this configuration, two devices can be easily attached to and removed from the rail 1 while being connected, and since one is hooked, it is also easy to attach and detach the devices to each other. Furthermore, as shown in the figure, when the two devices are integrated, the mounting surfaces are flush, so they can be mounted on any part other than the rail.

Note that this rail mounting device can also be applied to constructing a reversible switch by connecting electromagnetic contactors.

〔Effect of the invention〕

As described above, according to the rail mounting device of the present invention, the simple structure allows two devices to be easily attached to and removed from the rail while being attached, and the devices can also be easily attached and detached from each other.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of an embodiment of the present invention, Fig. 2 is a partial cross-sectional side view of the rail-mounted state, Fig. 3 is an exploded perspective view of both devices disassembled and turned upside down, and Fig. 4 is an exploded perspective view of an embodiment of the present invention. FIG. 5 is an exploded perspective view of the hooking portions of both devices, FIG. 5 is an enlarged sectional view of the connected state, and FIG. 6 is a sectional view taken along the line -. 1...Rail, 2...Magnetic contactor (first device), 3...Protection relay (second device), 5, 9...
...Hatch piece, 8...Elastic leg, 11...Removal hole (removal engagement recess), 16...Brim, 26...Connection plate, 27...Engagement hook, 28...Operation hook Department.

Claims (1)

[Claims] 1. A first device in which a mounting surface is placed on the upper surface of a rail with flanges on both sides, and a pair of hook pieces that engage with the flanges, and one hook piece is given elasticity for expansion. , a removal engagement recess formed in the elastic hook piece and opening on the outer surface;
a second device that is in contact with the outer surface of the first device and whose upper ends are connected to each other and has a guide groove formed on the mounting surface; and a distal end portion that is slidably supported by the guide groove. and a connecting plate formed with an engaging hook part that is hooked in the detachable engaging recessed part, and a connecting plate having a rear end part formed with an operating hook part that protrudes from the outer surface of the second device, the connecting plate A rail mounting device characterized in that the removal engagement recess is expanded by pulling the operation hook outward.