CS218640B1

CS218640B1 - Bead antenna for portable receivers

Info

Publication number: CS218640B1
Application number: CS230381A
Authority: CS
Inventors: Milan Polacek
Original assignee: Milan Polacek
Priority date: 1981-03-30
Filing date: 1981-03-30
Publication date: 1983-02-25

Abstract

Vynález sa týká konštrukčného usporiadania antény pre přenosné přijímače pásiem KV a VKV, pre súpravy diaTkového ovládania, najma hračiek a modelov. Podstatou vynálezu je, že na elektricky vodivé lanko sú navlečené korálky, ktoré sú na jednom ■· konci fixované koncovkou a na druhom konci napínacím mechanizmom. Taktiež je možné anténu usporiadať tak, že na oboch koncoch, korálky fixuje napínací mechanizmus. Možno využiť vo výrobkoch spotrebnej elektroniky a všade tam, kde je účelné nahradit’ cenove nákladnejšiu alebo mechanicky chúlostivejšiu teleskopickýanténu.The invention relates to the structural arrangement of an antenna for portable HF and VHF band receivers, for remote control sets, especially toys and models. The essence of the invention is that beads are strung on an electrically conductive wire, which are fixed at one end by a terminal and at the other end by a tensioning mechanism. It is also possible to arrange the antenna so that at both ends, the beads are fixed by a tensioning mechanism. It can be used in consumer electronics products and wherever it is expedient to replace a more expensive or mechanically more delicate telescopic antenna.

Description

Vynález sa týká konštrukčného prevedenia antény pre přenosné přijímače, ktorá nahradí svojou funkciou známe teleskopické antény, — popři ekonomických a technických výhodách.The invention relates to a structural design of an antenna for portable receivers, which will replace the known telescopic antennas by virtue of their function, in addition to economic and technical advantages.

Dosial známe používané teleskopické antény pre přenosné přijímače splňujú požiadavky pre příjem v pásmach KV a VKV. Ich výhody spočívajú vo funkčnej schopnosti, pohotovosti a v jednoduchom zasunutí do prijímača. Konstrukčně prevedenie teleskopických antén je však náročné na materiál po stránke pružnosti a pevnosti, na presnú strojnú technológiu a na povrchovú úpravu. Ako materiál , sa používajú mosadzné přesné trubky návazných přesných dimenzií, ktoré sú poniklované a pochromované. Aj keď prevedenie je klasické z hladiska spotřebitelů, výrobně náklady v celosvetovom meradle predstavujú 1/10 výrobnej ceny stredného přenosného prijímača. Okrem teleskopických antén sú známe ešte rámové antény, antény v rukováti a v nosnom popruhu, antény prútové, ktoré však pre iné dóvody sa takmer nepoužívajú.Previously known telescopic antennas for portable receivers meet the requirements for reception in the KV and FM bands. Their advantage lies in their functional capability, readiness and simple plugging into the receiver. However, the design of telescopic antennas is demanding in terms of material in terms of elasticity and strength, in precision machine technology and in surface treatment. As a material, brass precision tubes of connected precision dimensions are used, which are nickel-plated and chrome-plated. Although the design is classic in terms of consumers, the cost of production worldwide is 1/10 of the cost of a medium portable receiver. In addition to telescopic antennas, there are also known frame antennas, antennas in the handle and in the carrying strap, whip antennas, which are almost not used for other reasons.

Uvedené nevýhody sú odstráneně podlá vynálezu, ktorého podstata spočívá v tom, že pozostáva z elektricky vodivého lanka, na ktoré sú navlečené korálky fixované na jednom konci koncovkou a na druhom konci napínacím mechanizmom. Korálky móžu byť fixované i na oboch koncoch napínacím mechanizmom.These drawbacks are eliminated according to the invention, which consists in that it consists of an electrically conductive wire on which the strung beads are fixed at one end by a terminal and at the other end by a tensioning mechanism. The beads can also be fixed at both ends by a tensioning mechanism.

Vyšší účinok antény podlá vynálezu spočívá v znížení ekonomických nákladov pri porovnaní s teleskopickou anténou, s ktorou je funkčně ekvivalentná. Znížené ekonomické náklady spočívajú v úspoře farebného kovu, v úspoře presnej strojnej technologie a z rozdielu povrchových úprav niklovania a chrómovania. Nie je zanedbatelná tiež skutočnosť, že zatial čo teleskopická anténa je v běžných servisných podmienkach neopravitelná a musí sa vymeniť, — korálková ' anténa sa nedá zlomiť a v případe poruchy jeThe higher effect of the antenna according to the invention lies in the reduction of economic costs compared to the telescopic antenna with which it is functionally equivalent. Reduced economic costs consist of saving non-ferrous metal, saving precision machinery and the difference in nickel and chrome finishes. It is also not negligible that while the telescopic antenna is not serviceable under normal service conditions and must be replaced, - the beaded antenna cannot be broken and in the event of failure

Claims

OBJECT 1. Bead antenna for portable receivers, characterized in that it consists of an electrically conductive cable (1) on which the threaded beads (2) are fixed at one end by an end piece (3) and at the other end by a tensioning mechanism (4). 218640 repaired without special tools. The main advantage in addition to the economic aspect is the greater resistance to rough handling. Fig. 1 shows an antenna according to the invention in accordance with the first definition point. Fig. 2, 3, 4 is a detail of beads. Figures 5, 6 show detail of the tensioning mechanisms and for clarity the cuts are not intentionally hatched. Fig. 7 shows a drum-like tensioning mechanism. In a particular embodiment, the antenna of FIG. 1 was tested with a liquor transfer according to FIG. 3. The strand 1 was used to knit a tin-plated steel radio 0.3 mm. Beads should be sprayed from tough plastic. Cable 1 is soldered in terminal 3, but this is not a condition. A suitable strand is also a larger copper diameter, combined with a steel vein. The tensioning mechanisms may be of a ductile construction, where the embodiment of FIG. 5 is suitable for insertion into a socket. The embodiment of Fig. 7 shows a drum suitable for construction into a receiver which wraps 75 cm of antenna at 040 mm threads. The tensioning mechanisms may also be without spring 5, where the cord 1 is radially wound on a screw or tensioned by an axial shift of the screw. Also, a "two-tube" antenna in the form of two tubes, which are folded in the receiver box, through which the cable 1 terminated by the terminal 3 and on the other end by the tensioning mechanism 4, is also possible. The tensioning mechanism 4 can also be placed on the upper end of the antenna. The antenna according to the invention is also applicable to portable transmitters, including civic radios, remote control kits for toys, models and other devices. The prospect is possible wherever the classic telescopic antenna is too expensive or damaged. THE INVENTION

2. Bead antenna for portable receivers according to claim 1, characterized in that the beads (2) are fixed at two ends by a tensioning mechanism (4). 2 drawings 218 640

LD 210 640

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