JPH09289387A - Rail mounter for electric apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To materialize downsizing and life elongation and also, facilitate the removal by forming a lever groove which retains a lever slidably, and a projection at the main body of an electric apparatus, and fixing the lever, bringing it into elastic contact with the projection by the elastic piece provided at the lever. SOLUTION: A lever groove which retains a lever 10 slidably is made at the main body 1 of an electric apparatus. In the case of attaching the body 1 to a rail 3, the engaging piece 5 of the body 1 is engaged with one locking piece 4 of the rail 3, and the lever 10 is slid outward. The other locking piece 4 of the rail 3 is set in the locking claw 11a of the lever 10, and at the same time, the elastic piece 12 of the lever 10 contacts elastically with the projection 8 of the body 1, and it prevents the slip off of the lever 10 from the body 1, and fixes the body 1 to the rail 3. In the case of removing the body 1 from the rail 3, the lever 10 is drawn out by inserting the tip of a minus driver D into a hole 16 for release, and rotating it. The elastic piece 12 comes off the projection 8, and further the engaging claw 11a and the engaging piece 4 separate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a rail mounting device for an electric device mounted on an N standard rail (hereinafter referred to as "rail").

[0002]

2. Description of the Related Art As a conventional rail mounting device for electric equipment, for example, JP-A-2-254794 and JP-A-2-
-310999 and Japanese Patent Application Laid-Open No. 4-349699. Hereinafter, JP-A-2-2547
The rail mounting device for electric equipment disclosed in Japanese Patent Publication No. 94 will be described as an example.

FIG. 16 is a bottom perspective view showing a conventional rail mounting device for electric equipment, FIG. 17 is a side view showing an electric equipment main body fixed to a rail, and FIG. 18 is a process of releasing a lever (a) to (). It is a bottom view which shows c), and in the figure, 1
Reference numeral 01 is an electric device main body, 102 is a groove formed over the entire length of the bottom surface of the electric device main body 101 for passing the rail 103, 104 is a locking piece provided at both ends of the rail 103, and 105 is a locking piece 104. It is an engaging piece that engages.

Reference numeral 106 denotes a lever which is mounted in the recess 111 of the electric device main body 101 so as to be slidable in a direction intersecting with the groove 102 and which engages the locking piece 104 from the side opposite to the engaging piece 105. The lever 106 includes a locking piece 106 a that engages with an engaging groove 112 formed in the recess 111, an engaging claw 110 that engages with the locking piece 104, an elastically deformable elastic piece 116, and a stopper 117. Is equipped with. 109 is a lever 106 by inserting the tip of a flat-blade screwdriver D
It is a hole for pulling out.

[0005] The elastic piece 116 holds the locking claw 110 when the electric device body 101 is attached to the rail 103.
This is for urging the lever 106 inward when the lever 3 is urged outward.

Reference numeral 118 is a protrusion provided in the recess 111, and the protrusion 118 is in elastic contact with the elastic piece 116 of the lever 106.
a. Also, this protrusion 118 is
It is formed so as to engage with the stopper 117.

When the lever 106 is slid outward when the electric device main body 101 is removed, the protrusion 118a and the elastic piece 116 make elastic contact with each other while the locking claw 110 is located in the groove 102, and are engaged. When the pawl 110 is located outside the groove 102, the pawl 110 does not elastically contact.

Next, the operation will be described. When the electric device body 101 is attached to the rail 103, first, the engagement piece 105 of the electric device body 101 is engaged with one locking piece 104 of the rail 103. Next, the engaging claw 110 of the lever 106 is locked by the other locking piece 104 of the rail 103.
Is urged outward, and the lever 106 is slid outward. At this time, while the locking claw 110 is located inward of the groove 102, the lever 106 is biased inward by the elastic force of the elastic piece 116 against the projection 118a. The elastic piece 116 is deformed in a direction parallel to the sliding surface of the lever 106 while elastically contacting the protrusion 118a of the protrusion 118.

When the locking claw 110 moves outward from the groove 102, the other locking piece 104 of the rail 103 is completely fitted into the groove 102. Then, the engaging claw 110 of the lever 106 is no longer biased outward by the locking piece 104, so that it is biased inward by the elastic force of the elastic piece 116 and is positioned inward of the groove 102. Become. That is, the locking piece 104 is locked by the engaging claw 110,
The attachment of the electric device body 101 to the rail 103 is completed.

On the other hand, the electric device body 101 is connected to the rail 103.
When removing from, as shown in FIG. 17 and FIG. 18, insert the tip of the flathead screwdriver D into the hole 109,
The lever 106 is pulled outward by this principle by rotating in the sliding direction of the lever 106 with a protrusion (not shown) formed on the side surface of the electric device body 101 as a fulcrum. In this case, the stopper 117 and the protrusion 118 are engaged with each other, so that the movement of the lever 106 is restricted and the lever 106 is prevented from coming off the electric device body 101.

[0011]

Since the conventional rail mounting device for an electric device is constructed as described above, the elastic piece 116 must be thinly formed in response to the demand for miniaturization of the electric device body 101. As the number of times of use increases, the elastic force of the elastic piece 116 is weakened or easily broken, and the electric device body 101 mounted on the rail 103 is
There were problems such as rattling.

Further, the electric device main body 101 is connected to the rail 103.
At the time of removing from the outside, it is necessary to secure a space for rotating the flat head screwdriver D in order to pull out the lever 106 to the outside. There is a problem that the device body 101 cannot be removed from the rail 103.

Further, when the type and size of the electric device body 101 are different, the mounting position and the formation position of the groove 102 are also different. Therefore, different levers must be formed for the electric device bodies of different types and sizes. However, the conventional lever 106 has a problem that it can handle only one type of electric device main body 101.

The present invention has been made in order to solve the above problems, and the elastic force and the life of the elastic piece can be reduced even if the constituent members are downsized in accordance with the downsizing of the electric equipment body. An object of the present invention is to obtain a rail mounting device for an electric device that can firmly mount the main body of the electric device to the rail without lowering the temperature.

Another object of the present invention is to provide a rail mounting device for an electric device, which can easily remove the electric device main body from the rail even if the electric equipment main body is installed in a small space.

A further object of the present invention is to provide a rail mounting device for an electric device that can handle different types and sizes of electric device bodies with a single lever.

[0017]

According to a first aspect of the present invention, there is provided a rail mounting device for an electric device, wherein a rail groove provided on one surface of the main body of the electric device is engaged with one locking piece of the rail. A lever that slides outward and a lever that has a coupling piece and a locking claw that locks the other locking piece and that is biased by the rail and slides outward when the electrical device body is mounted on the rail. A lever groove for holding, a projection provided in the groove for the lever and protruding in a direction perpendicular to the sliding direction of the lever, and an elastic piece provided on the lever for elastically biasing the lever inward by elastically contacting the projection. Be prepared.

According to a second aspect of the present invention, there is provided a rail mounting device for an electric device in which a release hole into which a tip of a minus driver can be inserted and which can be rotated or a tip of a plus driver can be press-fitted is provided outside a lever. It is provided at the end on the side.

According to a third aspect of the present invention, there is provided a rail mounting device for an electric device, wherein a lever is provided with a plurality of locking claws.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1. 1 is a front view showing a lever groove according to Embodiment 1 of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a sectional view taken along the line BB of FIG. 1, and FIG. Figure,
5 is a side view showing the lever, FIG. 6 is a bottom view showing the lever, FIG. 7 is a front view showing the lever, FIG. 8 is a rear view showing the lever, FIG. 9 is a sectional view taken along line CC of FIG. Is D- in FIG.
D cross-sectional view, FIG. 11 is an explanatory view showing the actions (a) to (c) of the locking claw and the elastic piece when fixing the electric device body to the rail, and FIG. 12 shows the lever attached to the electric device body. FIG. 13 is a partial cross-sectional view showing the operations (a) to (c) of releasing the lever with a flat-blade screwdriver,
FIG. 14 is a partial cross-sectional view showing operations (a) to (c) of releasing the lever with a Phillips screwdriver, and FIG. 15 is a bottom view showing a state in which the lever is attached to another electric device body.

In FIGS. 1 to 3, reference numeral 1 denotes a main body of electric equipment such as a transmitter unit, which is formed of a resin such as polyacetal. 2 is a rail groove formed through the entire length of the bottom surface of the electric device main body 1 for passing the rail 3; 4 is a locking piece provided at both ends of the rail 3; 5 is an end of the rail groove 2 in the width direction. It is an engaging piece that is provided on the portion and engages with the locking piece 4.

Reference numeral 6 denotes a lever groove which is provided so as to intersect the rail groove 2 and which holds a lever 10 described later slidably in the width direction of the rail groove 2, and a guide portion 14 of the lever 10 described later. The engaging groove part 6a which can be engaged is provided. Further, an inclined surface 6b is formed in the lever groove 6.

Reference numeral 7 is a recessed portion provided on the ceiling surface of the lever groove 6, and is formed so that an elastic piece 12 of the lever 10 to be described later can enter.

Reference numeral 8 denotes a protrusion formed in the recess 7 so as to be perpendicular to the sliding direction of the lever 10, and its vertical sectional shape is substantially triangular. When the lever 10 is slid outward when the electric device body 1 is detached, the protrusion 8 is provided with an elastic piece 12 and an elastic piece 12 which will be described later while a locking claw 11a described later is located in the rail groove 2. Contact, locking claw 11
When a is positioned outside the rail groove 2, the elastic piece 12
It is arranged at a position that does not make elastic contact with.

4 to 10, 10 is a rail 3
Has two locking claws 11a and 11b for locking the locking piece 4 and is biased by the rail 3 when the electric device body 1 is mounted on the rail 3 to slide outward in the lever groove 6. The lever is made of, for example, polyplastic or the like.

The locking claws 11a and 11b are formed in parallel at a predetermined interval. The locking claws 11b are of other types.
When the lever 10 is mounted on a main body of an electric device of a size, the lever 10 is formed at a position corresponding to the mounting position. Further, when the lever 10 is mounted on the electric device main body 1, if any of the locking claws 11a and 11b becomes an obstacle, it is formed so as to be easily removed. In addition, in the present embodiment, the two locking claws 11a and 11b are formed, but the same locking claws are additionally formed so as to be compatible with more types and sizes of electric device main bodies. Of course, it is also possible.

The lever 10 elastically contacts the projection 8 and biases the lever 10 inward in the width direction of the rail 3, so that the elastic piece 1 is formed to project in the direction perpendicular to the sliding direction of the lever 10.
2 is provided. The elastic piece 12 has a tongue-like shape as a whole by providing the cutout portion 12a so that a predetermined elastic force can be obtained.

Numeral 14 is a guide portion formed on both ends of the lever 10 so as to be engaged with the engaging groove portion 6a of the lever groove 6. Reference numeral 16 denotes a release hole which is provided at the end of the lever 10 so that the tip of a minus driver can be inserted and rotated and the tip of a plus driver can be press-fitted. Reference numeral 18 denotes a meat stealing portion which is recessed at a predetermined depth.

Next, the operation will be described. When the electric device body 1 is attached to the rail 3, first, the engagement piece 5 of the electric device body 1 is engaged with the one locking piece 4 of the rail 3.

Next, as shown in FIG. 11A, the engaging claw 11a of the lever 10 is locked by the other locking piece 4 of the rail 3.
The lever 10 outwardly (in the direction of the arrow pointing left in the figure), and move the lever 10
Slide outward. At this time, the lever 10 is biased inward by the elastic force of the elastic piece 12 while the locking claw 11a is positioned inward of the rail groove 2. Further, the elastic piece 12 makes elastic contact with the protrusion 8 while
Is elastically deformed in the direction perpendicular to the sliding direction.

Then, as shown in FIG. 11 (b), the locking claw 11a moves outward from the rail groove 2 so that the other locking piece 4 of the rail 3 (not shown) is moved to the rail groove 2. Fully fitted.

Then, as shown in FIG. 11 (c), the engaging claw 11a of the lever 10 is no longer biased outward by the locking piece 4, so that it is pushed inward by the elastic force of the elastic piece 12. It is urged and positioned inside the rail groove 2. That is, as shown in FIG. 12, the locking piece 4 is locked by the engaging claw 11a, and the attachment of the electric device body 1 to the rail 3 is completed.

As shown in FIG. 15, by using the engaging claws 11b in the same procedure as described above, other types and
It can correspond to the size of the electric device body 1.

On the other hand, when the electric device body 1 is removed from the rail 3, as shown in FIG.
Insert the tip of the into the release hole 16 (a), then rotate (b) and pull the lever 10 outward (c). This utilizes the repulsive force generated by the inner side surface of the releasing hole 16 and the side surface of the electric device body 1 through the tip of the rotating minus driver D.

Further, as shown in FIG. 13 (c), the elastic piece 12 and the recess 7 are engaged with each other, whereby the outward movement of the lever 10 is restricted, and the lever 10 is moved from the main body 1 of the electric device. It can be prevented from coming off.

On the other hand, as shown in FIGS. 14 (a) to 14 (c), the electric device body 1 can be removed from the rail 3 using a Phillips screwdriver D. In this case, the tip of the Phillips screwdriver D may be pressed into the releasing hole 16. This is because the tip end portion of the plus driver D to be press-fitted has an enlarged diameter, so that the repulsive force generated at the time of press-fitting, that is, the inner side surface portion of the releasing hole 16 and the electric device body 1 via the tip end portion of the plus driver D It utilizes the repulsive force of the side surface of the.

As described above, according to the first embodiment, the elastic piece 12 can be formed wider than the elastic piece 116 disclosed in the prior art because of its structure, so that the size of the electric device body 1 can be reduced. Even if the elastic piece 12 is formed thin due to the increase in the cost, it is possible to obtain a longer elastic life and a stronger resilience than before, so that the electric device body 1 can be firmly attached to the rail 3. can get.

Further, the elastic piece 12 which can be formed wider than the conventional one engages with the concave portion 7, so that the elastic piece 12 itself also serves as the conventional stopper 117, and the lever 10 is detached from the main body 1 of the electric device. The effect of becoming harder and less likely to break is obtained.

Further, even if the installation location of the electric device body 1 is narrow, by inserting the tip of the minus driver D into the releasing hole 16 to rotate or by pressing the tip of the plus driver D into the conventional state, It is possible to obtain the effect that the electric device body 1 can be easily removed from the rail 3 without requiring such a work space.

Further, the lever 10 has two locking claws 11a,
By forming 11b, it is possible to obtain the effect that one lever 10 can be commonly used for two types of electric device main bodies.

[0041]

As described above, according to the first aspect of the present invention, the rail groove provided on one surface of the electric device body, the engaging piece that engages with one locking piece of the rail, and the other side. Levers that have locking claws that lock the locking pieces, and that are slid outward by being biased by the rails when the electrical device body is mounted on the rails, and a lever groove for slidably holding the levers. And a protrusion provided in the lever groove to project in a direction perpendicular to the sliding direction of the lever, and an elastic piece provided on the lever to elastically urge the lever inward by elastically contacting the protrusion. Even if the elastic piece is made thinner due to the miniaturization of the electric equipment body, it is possible to obtain longer life and stronger resilience than before, so that the electric equipment body can be firmly attached to the rail. There is an effect that can be done.

According to the second aspect of the invention, a release hole into which the tip of the minus driver can be inserted and rotated or the tip of the plus driver can be press-fitted is provided at the outer end of the lever. Since it is configured as described above, there is an effect that the electric device main body can be easily removed from the rail without requiring a work space as in the past.

According to the third aspect of the present invention, since the lever is provided with a plurality of locking claws, there is an effect that one lever can be commonly used for a plurality of types and sizes of electric device main bodies. is there.

[Brief description of drawings]

FIG. 1 is a front view showing a lever groove according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a top view showing a lever.

FIG. 5 is a side view showing a lever.

FIG. 6 is a bottom view showing a lever.

FIG. 7 is a front view showing a lever.

FIG. 8 is a rear view showing the lever.

9 is a sectional view taken along line CC of FIG.

FIG. 10 is a sectional view taken along line DD of FIG. 6;

FIG. 11 is an explanatory view showing the operations (a) to (c) of the locking claw and the elastic piece when the electric device main body is fixed to the rail in a corresponding manner.

FIG. 12 is a bottom view showing a state in which the lever is attached to the main body of the electric device.

FIG. 13 is a partial cross-sectional view showing operations (a) to (c) for releasing the lever with a flat-blade screwdriver.

FIG. 14 is a partial cross-sectional view showing operations (a) to (c) for releasing the lever with a Phillips screwdriver.

FIG. 15 is a bottom view showing a state where the lever is attached to another electric device body.

FIG. 16 is a bottom perspective view showing a conventional rail mounting device for an electric device.

FIG. 17 is a side view showing an electric device body fixed to a rail.

FIG. 18 is a bottom view showing operation processes (a) to (c) for releasing the lever.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric device main body 2 Rail groove 3 Rail 4 Locking piece 5 Engaging piece 6 Lever groove 8 Protrusion 10 Lever 11a, 11b Locking claw 12 Elastic piece 16 Release hole

Claims (3)

[Claims] 1. A rail groove provided on one surface of an electric device main body for fitting a rail having locking pieces at both ends in the width direction, and a rail groove provided at an end portion in the width direction of the rail groove. It has an engaging piece that engages with one of the engaging pieces and an engaging claw that engages with the other engaging piece of the rail, and biases the rail when the electric device body is attached to the rail. A lever that is slid outwards, a lever groove that is provided so as to intersect with the rail groove and that slidably holds the lever in the width direction of the rail groove, and a lever groove that is provided in the lever groove. A protrusion formed in a direction perpendicular to the sliding direction of the lever,
A rail mounting device for an electric device, comprising: an elastic piece that is provided on the lever and elastically contacts the protrusion to urge the lever inward. 2. A release hole, into which the tip of a minus driver can be inserted for rotation or the tip of a plus driver to be press-fitted, is provided at the outer end of the lever. 1. A rail mounting device for an electric device according to 1. 3. The rail mounting device for an electric device according to claim 1, wherein the lever is provided with a plurality of locking claws.