JPH0145160Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a mounting device for a dial threading guide pulley in a radio receiver or the like.

[Conventional technology]

In the dial display section of radio receivers, etc.
The dial thread is guided in parallel from the varicon pulley through several guide pulleys along the dial display window. By the way, when attaching the guide pulley to the plastic panel of the dial display, conventionally, as shown in FIG.
After attaching the guide pulley 2 to the panel 3, the mounting bracket 1 is screwed to the boss 4 of the panel 3, or as illustrated in FIG. The guide pulley 2 is mounted in the through hole 5 of the guide pulley 2.

[The problem that the idea aims to solve]

However, according to the former method, the number of parts increases, which is not preferable in terms of assembly work. On the other hand, with the latter structure, although the installation work is simple, it requires a special mold for forming the through hole 5, which has the drawback that the mold manufacturing cost is high. Note that when forming the groove 5' in the rib 6 as shown in FIG. 7, a simple two-piece mold may be used, but such a groove 5' may cause the guide pulley 2 to fall off. Therefore, it requires a separate metal fitting to prevent it from falling off, which is not necessarily a good idea.

This idea was devised in view of the above-mentioned conventional circumstances, and its purpose was to make it possible to integrally mold a rib with a through hole for attaching a pulley with a panel using a simple two-part mold. An object of the present invention is to provide a guide pulley mounting device.

[Means to solve the problem]

In order to achieve the above object, this invention includes a first wall that is integrally molded with the component mounting panel made of injection molded synthetic resin so that it can be bent almost at right angles to the panel; and a second wall bent at a substantially right angle at the tip thereof, a through hole is bored in the first wall, and a device for attaching a dial threading guide pulley to the through hole. In the above, the through hole is formed by cutting out the first wall between the edge of the through hole on the side of the component mounting panel and the tip where the second wall is bent. .

[Effect]

By cutting out not only the first wall but also the second wall when forming the through hole,
As a result, this through hole can be formed by sliding the mold surfaces of one mold member and the other mold member of a simple two-part mold.

〔Example〕

Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, this dial threading guide pulley mounting device has a rib 11 that is integrally formed to protrude from a component mounting panel 10 used for a dial display section of a radio receiver or the like.
It is equipped with In this embodiment, the rib 11
The upper wall (first wall) 11a, the left and right side walls 11
b, 11b and a front wall (second wall) 11c, and the upper wall 11a is provided with a through hole 12 for attaching a guide pulley.

The through hole 12 is formed by cutting out a predetermined portion of the upper wall 11a, but in this invention, not only the portion of the through hole 12 but also the front wall from the same portion toward the distal end side of the upper wall 11a is formed. By removing 11c as well, the above component mounting panel 10
The rib 11 including the through hole 12 can be integrally molded using a mold having a two-part structure.

That is, as illustrated in FIG. 2, the mold used for this molding includes, for example, a male mold 13 and a female mold 14 that open and close in the left-right direction as shown. In this case, the male mold 13 has a first male mold surface 13a that forms the inner surface of the upper wall 11a of the rib 11.
A second male mold surface 13b forming the inner surface of the front wall 11c, and a third male mold surface 13c forming the inner surfaces of both side walls 11b are provided. On the other hand, the female mold 14 has a first female mold surface 14a which forms the upper wall 11 with the first male mold surface 13a, and a second male mold surface 13b. In addition to the second female mold surface 14b forming the front wall 11c and the third female mold surface 14c forming the side wall 11b between the third male mold surface 13c, the first male mold side 1
A fourth female mold surface 14d is provided which is in sliding contact with the mold surface 3a to form the through hole 12.

In this embodiment, the fourth male mold surface 13d corresponding to the lower surface of the male mold 13 and the corresponding fifth female mold surface 14e of the female mold 14 are in sliding contact with each other, and the ribs 11 are in sliding contact with each other. The bottom surface is open.

According to the above configuration, the guide pulley 15 can be directly installed in the through hole 12, as shown in FIG. In this case, guide pulley 1
5 is preferably a push-type pulley that can be fixed with a one-touch operation. That is, as shown in FIG. 4, this guide pulley 15 has a shaft cylinder 15b that rotatably holds a pulley main body 15a, and a flange 15c is formed at the lower end of this shaft cylinder 15b. At the same time, a plurality of elastically deformable claw pieces 15d are coaxially connected to the lower surface side of the flange 15c.
Further, a rod 15f having a push button 15e is fitted from the upper end opening side of the shaft cylinder 15b. Therefore, first, each claw piece 15d is inserted into the through hole 12 while the push button 15e is pulled upward, and then the push button 15e is pushed downward to forcibly release the rod 15f. By pressing down, the diameter of each claw piece 15d is expanded,
The guide pulley 15 can be firmly fixed to the rib 11 as shown in FIG.

In the above embodiment, the side walls 11b, 11b are connected to the rib 11.
1b and 11b are optional and may be omitted depending on the case.

[Effect of idea]

As explained above, according to this invention, a guide pulley for dial threading has a structure in which a rib having a through hole can be integrally molded on a component mounting panel using a simple two-part mold. A mounting device is provided.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the guide pulley mounting device according to this invention, Fig. 2 is a sectional view showing the same device and its manufacturing mold, and Fig. 3 is a guide pulley attached to the same device. A cross-sectional view showing the condition,
4 is a front view of the guide pulley shown in FIG. 3, FIGS. 5 and 6 are sectional views showing a conventional example, and FIG. 7 is a perspective view showing another conventional example. In the figure, 10 is a component mounting panel, 11 is a rib, 1
2 is a through hole, 13 is a male mold, 14 is a female mold, and 15 is a guide pulley.

Claims (1)

[Scope of Claim for Utility Model Registration] A first wall integrally formed with a parts mounting panel made of synthetic resin injection molding so that it can be bent almost at right angles to the panel, and a tip of the first wall. a rib including a second wall bent at a substantially right angle, a through hole is bored in the first wall, and a dial threading guide pulley is attached to the through hole. For dial threading, the hole is formed by cutting out the first wall between the edge of the through hole on the side of the component mounting panel and the tip where the second wall is bent. Guide pulley mounting device.