JPH046228Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rail mounting device for an electrical appliance, which attaches an adapter to the bottom of the electrical appliance and attaches the electrical appliance to a rail via the adapter.

When installing a large number of electrical appliances such as electromagnetic relays and switches on a control panel, you can attach a rail to the control panel and fit the appliances onto the rail so that they can slide freely along the rail. It is easy to attach and detach electrical appliances, and the appliances can be arranged neatly on the board. In this case, it is convenient to simply drill a hole in the bottom of the electrical appliance, screw the adapter through this hole, and attach it to the rail via this adapter, since no special work is required on the electrical appliance.

For example, as shown in FIGS. 1 and 2, a conventional adapter 1 has two engaging pieces 2a spaced apart from each other along the longitudinal direction of a rail (not shown) on one side of a generally flat plate 2. is cut and raised, and a slider 4 is attached to the opposing side, which is pointed in a V-shape in the direction of the engagement piece 2a, and is always biased by a spring 3 in the direction of its tip 4a. The rail 5 has a hat-shaped cross section with a brim 5a as shown in FIG.
This collar portion 5a serves as a mounting portion useful for mounting electrical appliances. Further, a portion 5b corresponding to the ceiling of the hat is attached to the board surface.

To attach an electrical appliance to the rail 5, first fix the adapter 1 to the bottom of the electrical appliance, and insert one collar 5a of the rail 5 between the plate 2 of the adapter 1 and the engagement piece 2a. the other flange 5a
When the slider 4 is pressed against the slider 4, the collar 5a of the rail 5 pushes the slider 4 back and pushes the plate 2 of the adapter 1 along the V-shaped slope of the slider 4.
, the edge of the flange 5a touches the tip 4 of the slider 4.
Climb over a and slide onto the opposite slope, spring 3
It is engaged by the bias of. At this time, since the cut-and-raised gap s between the engagement piece 2a and the plate 2 is made slightly narrower than the thickness t of the collar 5a of the rail 5, the adapter 1 is engaged with the rail 5 due to the elasticity of the engagement piece 2a. be done.

According to this rail mounting device for electrical appliances, it is easy and convenient to attach and detach electrical appliances to the rails and therefore to the panel surface, etc., as described above, but electromagnetic relays and electromagnetic switches are Since the appliance itself vibrates, when such an electric appliance is installed with this device, over a long period of time, the part where the adapter contacts the rail, especially the engaging part, may wear out, or the gap s with the plate may open. This may cause looseness in the mounting of the electrical appliance, or the mounting position may be left sideways along the rail, which may sometimes cause the electrical appliance to malfunction or cause a disconnection accident. In particular, recently, electric appliances mounted on rails have become larger in capacity, and the vibration energy generated during operation is greater, which has a greater effect. Furthermore, reinforcing the mounting using screws or the like to remove the influence of vibration increases the number of man-hours, and the advantage of easy mounting and dismounting is lost.

In addition, in a device for attaching electrical appliances to a rail, Japanese Utility Model Application No. 51-117507 (design name: ``Electrical Appliance Mounting Device'') was published as a device to prevent misalignment due to play in the installation of electrical appliances. What is described is known. In the device described in this application, a hole is provided in the main body of the electrical device to accommodate the rubber elastic body, and the rubber elastic body is inserted into the hole.
This rubber elastic body is brought into contact with the tip of the rail. For this reason, a new hole for inserting the rubber elastic body must be formed in the main body of the electrical device.
This method has the disadvantage that it necessitates a change in the structure of the electric appliance and cannot be applied to existing electric appliances.

SUMMARY OF THE INVENTION The object of the present invention is to eliminate the above-mentioned drawbacks and to provide a rail mounting device for electrical appliances, which allows electrical appliances to be reliably mounted on a rail via an adapter over a long period of time.

To achieve this object, the present invention provides a mounting device configured as an adapter that is attached to an electrical appliance and attaches the electrical appliance to a rail having a cap-shaped cross section in a snap manner, the mounting device being a mounting device that is configured as an adapter that is attached to an electrical appliance and attaches the electrical appliance to a rail having a hat-shaped cross section in a snap manner. It consists of a flat plate that comes into contact with a surface, and is formed by cutting and bending this plate, and includes at least two engaging pieces that engage with one rib of the rail, and a snap-like piece on the other rib of the rail. a spring-loaded slider engaged with the spring-loaded slider;
The present invention is characterized in that a ring having rubber elasticity is fitted and attached to the engaging piece, and the engaging piece engages with the one brim portion of the rail via the ring.

Next, the present invention will be explained in detail based on drawings according to embodiments.

4 and 5, the adapter 1 has two engaging pieces 2a cut and raised on one side of a plate 2 with a gap spaced along the longitudinal direction of a rail (not shown), as in the conventional adapter 1. There is. This engagement piece 2a
may be extended along the rail to form two connected pieces. The slider 4 also has a guide 2 cut and raised from the plate 2 on the other side, just like the conventional slider.
b. One piece is attached to the center of the plate 2 by a stopper 2c, and the V-shaped pointed tip 4a is attached to the engaging piece 2a.
It is urged by the spring 3 in the direction of , and slides on the plate 2 along the guide 2b. The difference between the mounting device according to the present invention and the conventional one is that the slider 4
Preliminary engagement surfaces 6 are provided on both sides of the rail 5 to face the tip of the collar portion 5a of the rail 5 on the slider 4 side with a slight gap therebetween. Further, a ring 7 having rubber elasticity is fitted into the engagement piece 2a of the adapter 1, so that the engagement piece 2a engages with one of the collars 5a of the rail 5 via the ring 7. Furthermore, an engagement tip piece 8 made of a spring elastic material bent into a V shape is fitted onto the tip 4a of the slider 4.

To attach an electric appliance to a rail, first, as shown in FIG. 6, the adapter 1 is fixed to the bottom of the electric appliance 9 with a screw 10. Then, holding the electrical appliance 9, engage the engagement piece 2a of the adapter 1 with one collar 5a of the rail 5 via the ring 7, and insert the slider 4 into the other collar 5a in the opposite direction to the biasing direction. Pushing it back, it approaches the plate 2 of the adapter 1 along the slope of the V-shaped engaging tip piece 8 fitted in the slider 4, climbs over the V-shaped tip and slides onto the opposite slope, and then slides onto the slope of the rail 5. It comes into contact with the surface of the portion 5a and is locked by the bias of the spring 3. At this time, the plate 2 of the adapter 1 is in close contact with the collar 5a of the rail 5, and the ring 7 fitted into the engaging piece 2a is firmly and somewhat bitten into the tip of the collar 5a of the rail 5. There is. Therefore, the adapter 1 is in a state where the rail is sandwiched between the spring elastic material and the rubber elastic material by the slider and the engaging piece that it has, and there is no possibility that play will occur between the adapter and the rail. This prevents the engagement piece from wearing out. Furthermore, even if the electrical appliance fixed to the adapter vibrates, this vibration will not be transmitted to other electrical appliances via the rail. Further, when the electrical appliance vibrates, the preliminary engagement surface of the adapter integrated with the electrical appliance comes into contact with the rail, preventing the electrical appliance from sliding along the length of the rail.

Although the rubber elastic body is fitted into the engagement piece as a ring, it may be in the form of a long and thin plate and attached only to the portion where the rail contacts the engagement piece.

According to the electrical appliance mounting device of the present invention, even if the electrical appliance vibrates due to its own operation while the appliance is attached to the rail via the adapter, the vibration energy is absorbed by the rubber or spring material. There is no direct contact between the rail and the engagement piece of the adapter or the slider, and wear of the engagement piece and looseness during installation are reliably avoided, and the preliminary engagement surface This prevents the rail from falling sideways on the rail, improving reliability when installing electrical appliances. Furthermore, the present invention has the advantage that there is no need to change the structure of the adapter and it can be applied to existing adapters as it is only necessary to fit the ring having rubber elasticity into the engagement piece. It is something.

[Brief explanation of drawings]

Figures 1 and 2 show conventional adapters;
FIG. 1 is a front view, FIG. 2 is a sectional view taken along line X-X in FIG. 1, FIG. 3 is a sectional view of the rail, FIGS. 4 and 5 show an adapter according to the present invention, 5 is a front view, FIG. 5 is a sectional view taken along line Y--Y in FIG. 4, and FIG. 6 is a side sectional view of an electric appliance mounted on a rail using the mounting device according to the present invention. 1...Adapter, 2...Adapter plate, 2a
...Engaging piece, 4...Slider, 5...Rail, 5
a...Rail collar, 6...Preliminary engagement surface, 7...
...Rubber elastic ring, 8...Engagement tip piece.

Claims (1)

[Claims for Utility Model Registration] 1. A mounting device configured as an adapter that is attached to an electrical appliance and attaches the electrical appliance to a rail having a cap-shaped cross section in a snap-like manner, the mounting device being attached to the surface of the brim of the cap-shaped rail. It consists of a flat plate body that abuts, and is formed by cutting and bending this plate body, and includes at least two engaging pieces that engage with one collar of the rail, and engage with the other collar of the rail in a snap-like manner. A ring having rubber elasticity is fitted and attached to the engaging piece, and the engaging piece engages with the one collar of the rail through the ring. A rail mounting device for electrical appliances, characterized in that the rail mounting device is adapted to fit together. 2 Utility Model Registration Claim 1: The attachment device according to claim 1, characterized in that an engagement tip piece formed by bending a spring elastic material into a V-shape is fitted into the tip engagement portion of the slider. Mounting devices for electrical appliances.