SU625709A1 - Apparatus for facilitating movements of blind men - Google Patents
Apparatus for facilitating movements of blind menInfo
- Publication number
- SU625709A1 SU625709A1 SU762431883A SU2431883A SU625709A1 SU 625709 A1 SU625709 A1 SU 625709A1 SU 762431883 A SU762431883 A SU 762431883A SU 2431883 A SU2431883 A SU 2431883A SU 625709 A1 SU625709 A1 SU 625709A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- contact
- multivibrator
- housing
- blind
- contacts
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/068—Sticks for blind persons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Description
резисторов в цепи базового питани отсутствует , колебани не возникают вообще.There are no resistors in the base power circuit, no oscillations occur at all.
В мультивибраторе, собранном на транзисторах 13 и 14, нет посто нно включенного резистора с базы транзистора 14 на минус питани . При этом колебани мультивибратора редки, ибо они обусловлены утечкой тока конденсатора 15. Резисторы 4-6 подадут питание на базу транзистора 14 только в том случае, когда контакт 3 совместно с контактом 4 или 5(6) попадет в воду, котора в этом случае играет роль проводника тока.In a multivibrator assembled on transistors 13 and 14, there is no resistor permanently connected from the base of transistor 14 to a minus power. In this case, the oscillations of the multivibrator are rare, because they are caused by the leakage of the current of the capacitor 15. The resistors 4-6 will supply power to the base of the transistor 14 only when pin 3 together with pin 4 or 5 (6) falls into water, which in this case plays the role of current conductor.
Частота колебаний мультивибратора на транзисторах будет тем выше, чем больше пар контактов попадут одновременно в воду , так как суммарное сопротивление резисторов 4-6, включаемых в этом случае параллельно, уменьшаетс .The frequency of oscillation of the multivibrator at the transistors will be the higher, the more pairs of contacts get into the water at the same time, as the total resistance of the resistors 4-6, included in this case in parallel, decreases.
Электрические колебани мультивибратор с коллектора транзистора 14 через конденсатор 16 поступают на базу транзистора 17, играюш,его роль предварительного усилител посто нного тока. С резистора 18 по гальванической св зи усиленные токовые импульсы подаютс на базу транзистора 19, вл юш,егос оконечным усилителем мощности .The electric oscillations of the multivibrator from the collector of the transistor 14 through the capacitor 16 arrive at the base of the transistor 17, playing, its role being a pre-amplifier of direct current. From the resistor 18 through galvanic connection, the amplified current pulses are applied to the base of the transistor 19, which is its final power amplifier.
В коллекторную цепь этого транзистора включен электромеханический блок 12, колебани кор которого преобразуют усиленные электрические колебани мультивибратора в механические колебани индикаторного штыр 20. Причем щтырь совместно с крепежным винтом 21 двигаетс вAn electromechanical unit 12 is connected to the collector circuit of this transistor, the oscillations of the core of which convert the amplified electric oscillations of the multivibrator into mechanical oscillations of the indicator pin 20. Moreover, the tongue together with the fixing screw 21 moves in
продольной прорези в корпусе 1 трости. Это обеспечивает наиболее удобное положение штыр дл пальцев руки конкретного человека . В верхней части корпуса расположен блок 22 питани , закрытый крышкой 23,longitudinal slot in the cane case 1. This provides the most comfortable position of the pin for the fingers of the hand of a particular person. In the upper part of the case there is a power supply unit 22, closed by a lid 23,
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762431883A SU625709A1 (en) | 1976-12-21 | 1976-12-21 | Apparatus for facilitating movements of blind men |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762431883A SU625709A1 (en) | 1976-12-21 | 1976-12-21 | Apparatus for facilitating movements of blind men |
Publications (1)
Publication Number | Publication Date |
---|---|
SU625709A1 true SU625709A1 (en) | 1978-10-05 |
Family
ID=20687320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762431883A SU625709A1 (en) | 1976-12-21 | 1976-12-21 | Apparatus for facilitating movements of blind men |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU625709A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4858125A (en) * | 1983-04-26 | 1989-08-15 | Sharp Kabushiki Kaisha | Electronic cone with environmental and human body condition sensors and alarm for indicating existence of undesirable conditions |
US5219402A (en) * | 1991-11-12 | 1993-06-15 | Yoshio Kondo | Stick usable at daytime and night |
-
1976
- 1976-12-21 SU SU762431883A patent/SU625709A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4858125A (en) * | 1983-04-26 | 1989-08-15 | Sharp Kabushiki Kaisha | Electronic cone with environmental and human body condition sensors and alarm for indicating existence of undesirable conditions |
US5219402A (en) * | 1991-11-12 | 1993-06-15 | Yoshio Kondo | Stick usable at daytime and night |
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