JPS58983Y2 - Tuner coil unit - Google Patents

Description

[Detailed description of the invention] The present invention relates to the invention of a coil unit for a tuner, which is easy to assemble accurately, and whose assembled state is stable and strong.
Furthermore, the present invention aims to provide a tuner coil unit in which the core can be moved in and out of the coil case in an accurate direction.

Regarding forming a predetermined tuned state by operating a core in and out of a coil case containing a plurality of coils or a coil case containing a plurality of coils in a μ tuner, an M tuner, etc. This has been practiced for a long time, and involves assembling such a coil and core and a moving member for moving the core as one unit.
It seems that it has been practiced in the past to avoid the complexity of handling individual coil cores by incorporating such a coil unit into a predetermined position in a target tuner and operating it for tuning.

However, such conventional coil units have a complicated structure and require many parts, and inevitably require a lot of materials and man-hours to manufacture and assemble, and the assembled state is not necessarily stable and strong. Furthermore, there are disadvantages such as the difficulty of moving the core in and out of the coil with accurate alignment.

The present invention has been devised through repeated research in order to eliminate the disadvantages of the conventional ones as described above.The specific embodiments of the present invention are explained as shown in the attached drawings. As shown in Fig. 1, a frame body 1 made of a plate material bent into a U-shape is used, and a case body 3 having a plurality of coils is perpendicular to one end of the frame body 1. The attached terminal plate 2 is arranged with the end facing the terminal plate joint of the case body 3 joined, and the open side of the frame body 1 is connected and tightened by the connecting shaft 4, and then the above-mentioned The movable member 6 to which the core 5 that is operated in and out of the coil case is attached has an engaging portion γ that engages with the aforementioned connecting shaft 4 and guides the sliding movement of the movable member 6 in the front-rear direction. The movement of the moving member 6 is guided by the engaging portions 1, 1, and the intermediate portion of the frame body 1 as described above has a step portion 8a formed at both ends. A rod 8 is provided substantially parallel to the connecting shaft 4.

In the illustrated example, a coil case member 3 as described above is formed for each coil, and therefore a plurality of coil case members 3 are used. It is obvious that, depending on the case, it may be an integral coil case body with a plurality of coils built therein.

In addition, the terminal plate 2 and the frame body 1 are parallel to the above-mentioned connecting shaft 4, and the eleven connecting shafts 4a are stepped in the space of the stacked coil case body 3 as shown in FIG. They are arranged so that they can be assembled in a stable state by these connecting shafts 4.4a.

According to the present invention as described above, since the frame body 1 is bent into a U-shape on a plane, it is possible to align and attach the coil case body 3 to one end of the frame body 1. As described above, and connecting rods 4, 4
When tightening the screw by a, the restraining rod 8 is connected to the stepped portions 8a, 8a
This makes it possible to regulate the spacing in the middle of the frame body 1, prevent the one end side 1b from bending and tilting as shown by the imaginary line in FIG. Therefore, the relationship between the frame body 1, the movable member 6, and the connecting rod 4゜4a is always in an accurate assembly relationship, and the movable member 6 is engaged with one of the connecting rods 4 multiple times. Since the core 5 attached to the movable member 6 is engaged and guided by the parts 1 and 1, the operation of the core 5 attached to the movable member 6 in and out of the coil case 3 is always centered and accurate, and a smooth and appropriate synchronized operation relationship is formed. It has the function and effect of being able to do the following, and is a highly effective device in terms of practical production.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG. 1 is a plan view of a coil unit according to the present invention. FIG. 2 is a side view thereof, and FIG. 3 is a cut end view thereof. In these drawings, 1 is a frame body, 2 is a terminal plate, 3 is a coil case, 4 is a connecting rod, 5 is a core, and 6 is a
7 is a moving member, 7 is an engaging portion, 8 is a restraining rod, and 8a is a stepped portion thereof.

Claims (1)

[Scope of utility model registration request] A terminal plate, on which a case body in which a plurality of coils are arranged in a plane, is attached to a frame body which is bent and formed into a U-shape in a plane, is tightly connected across a plurality of connecting shafts,
A plurality of engaging portions are formed on the movable member in which a core that is operated to move in and out of the coil case is engaged with one of the connecting shafts to guide the sliding movement of the movable member, and The coil unit for a tuner is provided with a restraining rod extending in a direction substantially parallel to the connecting shaft and having stepped portions formed at both ends thereof to restrain deformation of the frame body when tightened by the connecting shaft.