JPH0689808A - Solenoid - Google Patents

Abstract

PURPOSE:To enable the close contact fixing of a solenoid, reduce the attachment space, miniaturize and apparatus to be driven, and decrease the number of parts, by providing the core main body of a stator core with fixing holes, in a solenoid wherein a moving core is attracted by a stator core into which an electromagnetic coil is inserted. CONSTITUTION:The stator core 2 of a solenoid 1 is attached to a machine main body 17, so as to be fastened by screws 30 which penetrate fixing holes 29. In the machine main body 17, a pair of right and left fixing rails 17a whose heights can clear an electromagnetic coil 3 are cut bent and formed. The stator core 2 made to abut against the rails 17a is so fixed that the screws 30 are engaged with threaded holes 31 formed in the fixing rails 17a. Since the stator core 2 is subjected to the close contact fixing to the machine main body 17, the thickness dimension of the bending machine caused by the attachment space is remarkably reduced, and, as the result, am apparatus to be driven can be miniaturized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid that attracts a movable iron core to a fixed iron core having an electromagnetic coil inserted therein and uses the movement of the movable iron core to drive various devices. Regarding solenoids.

[0002]

2. Description of the Related Art FIG. 4 is a perspective view showing a conventional general solenoid. In the figure, as is well known, the solenoid 1 has a structure in which an electromagnetic coil 3 is inserted into a fixed iron core 2 and the movable iron core 4 is attracted to the fixed iron core 2 by excitation of the electromagnetic coil 3. The fixed iron core 2 is composed of an iron core body 5 in which silicon steel plates are laminated and side plates 6 made of iron plate applied to both sides of the iron core body 5, which are integrated by iron rivets 7.
Mounting legs 6a are formed on the side plate 6 by L-bending, and mounting screw holes 10 are provided in this portion.

The fixed iron core 2 has a magnetic path in which a part of the upper side of the mouth shape is cut out, and the electromagnetic coil 3 is mounted by fitting in a convex hollow portion surrounding the magnetic path. Here, in the electromagnetic coil 3, a coil winding (not shown) is wound around the outer circumference of a hollow square tubular spool 8, and a resin coating 9 is provided on the outside thereof.
Is molded, and its shape is a convex shape that fits into the convex hollow portion of the fixed iron core 2. The coil terminal 3a is fixed to a part of the cover 9. On the other hand, the movable iron core 4
Is composed of an iron core body 11 in which T-shaped silicon steel plates are laminated, and a cross-shaped side plate 12 made of iron plate applied to both sides thereof, and these are integrated by iron rivets 7. Side plate 1
The head of 2 has a connection hole 13 for the driven body. The movable iron core 4 is slidably inserted into the spool 8 and is combined with the fixed iron core 2 as shown.

FIG. 5 shows an example of use in which the solenoid 1 is used in a product unloading mechanism of an automatic vending machine (hereinafter referred to as a bend mech). FIG. 5 (A) is a side view and FIG. 5 (B) is the same.
Is a front view of the relevant part. Hereinafter, the illustrated bend mech will be briefly described. The bend mech 14 is a system in which a large number of canned products (canned coffee, etc.) 16 vertically stacked in a meandering product passage 15 are carried out one by one by operating the solenoid 1, and the mech body is made of a plate material. A structure in which an upper flapper 18, a lower flapper 19 and a stopper 20 are rotatably supported by 17 via shafts 21, 22 and 23, respectively, and the stopper 20 and the movable iron core 4 of the solenoid 1 are connected via a link 24. Has become. A return spring 26, which is a tension spring, is hung between the pin 25 of the stopper 20 and the MEC body 17. In the illustrated sales standby state, the tip of the lower flapper 19 projects into the product passage 15 as shown in the drawing, and supports the can product 16 from falling. Further, in this state, the upper end of the lower flapper 19 is engaged with the pin 25 and is prevented from rotating.

Now, when the solenoid 1 is excited by the sales command, the movable iron core 4 is attracted, and the stopper 20 interlocked with this via the link 24 rotates counterclockwise about the shaft 23 as a fulcrum. Therefore, the lower flapper 19 is disengaged from the pin 25 and rotated counterclockwise by the weight of the product 16 to open the lowermost product 16 and drop it on a shooter (not shown). At the same time, the stopper 20 has a pin 27
Thus, the upper flapper 18 is pushed out into the product passage 15 about the shaft 21 as a fulcrum, and the upper flapper 18 is supported so as not to drop the second or more products 16 from the bottom. As a result, only the lowermost product 16 is unloaded. Then, when the solenoid 1 is de-excited, the return spring 26 pulls back the stopper 20 and the pin 25
The lower flapper 19 is projected through the pin 2 and
7 is retracted to return the upper flapper 18 to the vertical state shown in the figure. As a result, the product 16 is again supported by the lower flapper 19 and is in a sales standby state. By repeating such operations, the products 16 are carried out one by one.

[0006]

In FIG. 5, the solenoid 1 has a screw hole 10 at the L-bent portion of the upper end of the MEC body 17.
It is attached by a screw 28 that passes through (FIG. 4). Then, the maximum thickness dimension T of the bend mech 14 (see FIG.
(A) is occupied by the width dimension of the fixed iron core 2 of the solenoid 1. On the other hand, in the product storage shelf of the vending machine equipped with the bend mech 14, as shown in FIG. 6, it is usual that a plurality of merchandise passages 15 are provided in the vending machine body so as to be stacked in front and back. Are arranged back to back every two passages as shown. Therefore, in order to reduce the dimension in the front-rear direction in such a vending machine, the reduction of the thickness dimension T of the bend mech 14 is a major point.

However, conventionally, the mechanical portion (the flapper 1
Even if the thicknesses of 8, 19, stopper 20, etc.) are made thin, the space for mounting the solenoid 1 becomes a bottleneck, and it is difficult to sufficiently reduce the thickness T. It should be noted that the mounting direction of the solenoid 1 to the MEC body 17 is rotated by 90 degrees from the state shown in FIG. 5, that is, the fixed iron core 2 is parallel to the MEC body 17, and the fixed, movable iron cores 2 and 4 and the electromagnetic coil are arranged. Although it is conceivable to make 3 thin, even in that case, the mounting space due to the protrusion of the mounting legs 6a of the side plate 6 becomes an obstacle, and there is a limit to thinning the bend mech 14. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a solenoid that can reduce the mounting space by devising the mounting structure and can reduce the size of not only the bendmec but also the driven device in general.

[0008]

In order to achieve the above object, the present invention provides a mounting hole in an iron core body of a fixed iron core of a solenoid.

[0009]

[Operation] A mounting hole is provided in the core body of the fixed core, and the solenoid is mounted by tightening the fixed core with a screw passing through the mounting hole, and the side plate mounting leg is eliminated. As a result, the mounting leg, which requires a certain width for inserting the mounting screw, is eliminated, and the solenoid can be closely mounted to reduce the mounting space.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. Here, FIG. 1 is a perspective view of a solenoid, FIG. 2A is a side view of a main part when the solenoid of FIG. 1 is used for a bend mech of a vending machine, FIG. 2B is a front view thereof, and FIG. FIG. 3 is a main part exploded perspective view showing a solenoid mounting portion of the MEC body in FIG. 2. The same reference numerals are used for the parts corresponding to the conventional example, and the description of the parts having substantially the same configuration is omitted. In FIG. 1, a fixed iron core 2 has a side plate 6 and a mounting leg 6 in the conventional example.
There is no a (FIG. 4), and mounting holes 29 are provided at two left and right positions penetrating the iron core body 5 directly fastened by the iron rivets 7. In this case, the side plate of the movable iron core 4 is omitted,
The iron core body 11 directly fastened with the iron rivets 7 is provided with a connecting hole 13 for connecting with a driven device. In this embodiment, in order to further enhance the effect of the present invention, the fixed and movable iron cores 2 and 4 are made flat while the cross-sectional area of the magnetic passage is kept the same as that of the conventional example, and the width dimension thereof is made slightly larger. In addition, the electromagnetic coil 3 is also flattened to reduce the thickness of the solenoid 1 as a whole. Other configurations are substantially the same as those of the conventional example of FIG.

As shown in FIG. 2, the solenoid 1 shown in FIG.
The fixed iron core 2 is fastened and attached to the MEC body 17 by a screw 30 passing through the attachment hole 29. In that case, as shown in FIG. 3, a pair of left and right mounting rails 17a having a height for escaping the electromagnetic coil 3 are formed by cutting and bending in the MEC body 17, and the fixed iron core 2 abutted thereto is attached to the mounting hole 29. The screw 30 is screwed and fixed in the screw hole 31 provided in the mounting rail 17a. Here, comparing FIG. 2 and FIG. 5, in the embodiment of FIG. 2, since the fixed iron core 2 of the solenoid 1 is attached in close contact with the MEC body 17, the thickness of the bend MEC 14 based on the attachment space thereof. The size T is significantly smaller than that of the conventional example shown in FIG. In the embodiment, the use example of the vending machine of the vending machine is shown, but it goes without saying that the reduction of the mounting space by the solenoid of the present invention is not limited to this and is effective for all purposes.

[0012]

As described above, according to the present invention, the mounting legs formed by the side plates are eliminated and the mounting hole is provided in the core body of the fixed core, so that the solenoid can be closely mounted and the mounting thereof can be performed. The space is reduced, the driven device can be downsized accordingly, and the number of parts can be reduced by omitting the side plate, so that the solenoid becomes inexpensive.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 shows an example in which the solenoid of FIG. 1 is used in a bend mech of a vending machine, (A) is a side view of a main part of the bend mech, and (B) is a front view thereof.

FIG. 3 is an exploded perspective view of FIG.

FIG. 4 is a perspective view of a conventional example.

5 shows an example in which the solenoid of FIG. 4 is used in a bend mech of a vending machine, (A) is a side view of a main part of the bend mech, and (B) is a front view thereof.

6 is a side view of a product storage shelf of the vending machine including the bendmech of FIG.

[Explanation of symbols]

 1 Solenoid 2 Fixed iron core 3 Electromagnetic coil 4 Movable iron core 5 Iron core body 8 Spool 13 Connecting hole 29 Mounting hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsugu Kojima 1-1, Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Fuji Electric Co., Ltd.

Claims (1)

[Claims] 1. A solenoid in which a movable iron core is attracted to a fixed iron core having an electromagnetic coil inserted therein, wherein a mounting hole is provided in an iron core body of the fixed iron core.