DD154327A1 - TELESCOPIC BLIND LANE - Google Patents

Abstract

The invention relates to a telescopic long pole for the blind and visually impaired as a guide. The object and task is a light long stick, which is easily recognizable in road traffic and stiff and elastic and repulsion of buttocks almost completely compensated without effect on the wrist, but the tactile information at the same elevation The essence of the invention is a telescope Blindenlangstock having a slenderness S between 100 and 300 at a Konizitaet K between 0.01 and 0.001 in the stretched state, consists of wound plastic material, overlap lengths of preferably 6 cm, whose overlapping or insertion cone corresponds to the cone of the telescopic parts and that of the elongated pole and / or the individual telescope parts and which has a mean preferred diameter of ca.8 mm with a preferred wall thickness of 0.5 mm. Areas of application are the blind and visually impaired, so that they can quickly and easily find their way around without any help from others.

Description

2253 2 3 - * -

Telescope-like blind walking stick Field of application of the invention

The invention relates to a telescopic Blindenlangstock as a stick and orientation aid preferably in the traffic for the blind and visually impaired themselves and for fast and timely recognition of such road users, even by drivers on the day and in the field ·

Characteristics of the known technical solutions Collapsible aluminum cane blades are known, which consist of several ζ "Β" four cylindrical pipe sections of the same or different diameters. The upper tube piece is in this case provided with a handle and the lower tube piece with a probe made of metal or plastic. The cylindrical tube pieces are tapered at their upper ends or conically tapered and widened at their lower ends or widened conically and are interlocked in this way. * is held together and held together by a long rubber fastened in the handle and probe and arranged inside the tube pieces. * If the handle and probe are pulled, the rubber is stretched and the individual limbs can be pulled out of their cone and placed side by side »To unfold, the ends of the individual limbs are pushed together and held together by the internal rubber. The disadvantage of this collapsible Blindenlangstöcke is that the members are held together only by the rubber, that the tapers serve only as a holder and not as detent at the ends of the members, the rubber by folding at the kinks (edges) quickly fatigued or torn and the the long cane thereby is very unstable because its strength depends on the tensile force of the rubber, "'Ein.weiterer disadvantage is _s particularly said cone connections through the exchange rates cone at the ends of · tube sections as a result of permanent palpation and whipping · on the Pavement or the like quickly become loose and even dump »

If such sticks, however, burdened in the direction of their central axis by an obstacle, they are also so stiff that the user at each obstacle, the top of such a stick or the handle on his stomach or chest, which accidents are essential or the stick folds and the user slips out and can fall down «

Furthermore, since such sticks are relatively heavy, weigh about 300 g and the hand or the user's wrist due to the high weight of this long stick when constantly pressing in the form of pendulum movements executed by the wrist relatively fast, the user must each for a certain time stand still and let his hand or * rest his wrist _e

Also of Machteil that these sticks must be painted with a white color, so that the user is reasonably recognizable even in the dark * By using and constantly striking the paint flakes off very quickly from the aluminum and the user is therefore heavy in the road Recognizing what can lead to accidents «The user also has a whole stack of stacks in the folded state, which is particularly troublesome during shopping.« Furthermore, blind long poles are known, which consist of two cylindrical pieces of the same diameter and a hollow threaded pin and an internal thread can be screwed together »Inside, there is also a rubber, which is used to prevent the two tubes from falling apart when screwed on. served '

This stick has the additional disadvantage compared to the above that it is still about 60 to 70 cm long in the folded state and that of the blind z »B _e . when shopping often with it and causes damage.

Another Blindenlangstock has instead of the aforementioned threaded connection a cone connection and in the interior also a rubber der'zur to make the falling apart of the two pipe sections in the exploded state and sharks the same disadvantages as the aforementioned sticks

Finally, as the only telescopic blind long stick a stick made of glass fiber is known, which consists of five telescoping or expandable cylindrical pipe sections and the upper tube piece is provided with a handle made of plastic and the lower tube piece has a probe made of metal. This telescope Blindenlangstock has a relatively large diameter of about 25 mm, is therefore relatively heavy and weighs about 200 g. The disadvantage of this piece is that it can be pushed together relatively easily, or that it collapses along obstacles when it hits hard, so that its puncture is no longer present. Another disadvantage is that this long stick is the result of constant touching on the road relatively easily pops up on the outer cylindrical ends and then the entire floor is no longer usable and must be thrown away *

Aim of the invention;

The aim of the invention is the development of a telescope-type Blindenlangstockes, which does not aufvreist the disadvantages of the aforementioned long sticks and weighs despite an extended length of about 1.40 m not more than 100 g »

Explanation of the essence of the invention. , ,

The invention is based on the object to provide a telescopic Blindenlangstock, which is not only very light, its constructive structure and technology is very simple, which has no additional conical or threaded connections, closures, notches or the like at the ends of the individual telescopic parts, which is easily telescoped and pulled apart and in the stretched state, on the one hand-stiff, which does not slip into each other when constantly touching the pavement or other ground level and also when hitting obstacles and on the other nach.dem impingement on obstacles so nachfedert or, at least in the lower part of the telescope in such a way that the recoil of the obstruction

Nisse on the stick is intercepted and compensated by this himself and injuries of the user to the abdomen and chest are avoided from the outset, and conclusions of the user on the nature of the obstacle, or the terrain, especially on puddles or water pools are possible the stick can be easily and easily locked in the collapsed state without internal rubber, so that an independent slipping apart is eliminated »

The above object is achieved by a telescopic Blindenlangstock, the slender in the stretched state S between 100 and 300, preferably between 125 and 175, in particular at a taper K between 0.01 and 0.001, preferably between 0.0012 and 0.0070 .aufv / eist and made of metal or one in particular! fiber-reinforced macromolecular material, in particular made in the spin and / or preferably ^ in the winding and / or in the draw-winding process, in particular of glass and / or mixed fibers or filaments in strand and / or tape »and / or surface form as a staple binder mat , Woven fabric or the like and a particular polymerizable or polycondensable or solidifiable by polyaddition plastic, possibly also from Prepregsj that the overlap length is at least 1.0, preferably '3 to about 10 cm and that the respective overlap or insert cone preferably the cone of the telescope parts and / or that of the extended or extended long stick corresponds. , ,

According erfindungsgenäß the ^ individual telescopic parts have a slenderness S between 15 and 75, preferably between 20 and 60, in particular at a taper K between 0.06 and 0.007, in particular between 0.002 and 0.004 »Furthermore, according to the invention, the locking of the individual telescope parts together in the stretched Condition by form and / or adhesion to the overlapping and / or Einsteckkonusflächen and in the collapsed state in particular durch.ein in the ITähe the probe attached and directed to the handle and open cone piece,

whose cone or conicity is equal to or preferably larger or smaller than that of the telescopic parts,

Ausführungsbe ispiel

The invention will be explained in more detail below using an exemplary embodiment.

The most useful structure also in shape, surface shape and size consists in a telescope Blindenlangstock, which consists of a probe and a handle member with interposed Teleskpteilen and the total or, in the extended state has a slim elongated and conical shape, the telescopic parts have the same shape and which are formed hollow and thin-walled "to realize the erfindungsgenäße object, various materials and semi-finished studies were performed and determined in the result of calculations based on new ideas" that the above object is solved creatively by a long cane which in the extended state Slightness S between 100 and 300, preferably between 125 and 175, which moreover must be conical in total and thereby has a certain taper K between 0.01 and 0.001, preferably between 0.0012 and 0.0070 and taking into account the rigidity and strength required on the one hand for such blind visors and on the other hand required elasticity and flexibility of the material of the telescopic parts only a thin-walled, conical and hollow-drawn metal or by spin coating, preferably in the winding or draw-winding process of a fiber-reinforced polymerizable or polycondensable or by polyaddition can be solidified material, because only these materials in called structure and corresponding shape the Tastschall or -Klang, so the required scope and content of information in the appropriate quality properly transferred and at the same time compensate for their inner or own elasticity shocks to obstacles or the like itself and not, or only to a limited extent, to the blind or "the visually impaired, in particular to his wrist,"

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The term "slenderness degree S" is also understood to mean the ratio of the blind longitudinal stick located in the extended or extended state to the average cross-section or to the mean diameter, ie:

or »1 or

simplifies S ~ 21 _h 21

Q "T ^q.bZW * FTT"

Among the conicity K Konusgrößen- or Kegelgrößen- or diameter difference to the length of the stretched long stick or the individual telescopic parts is also understood here, d _e h _e%

χ _β S ^ JL resp

For fiber reinforcement, glass fibers or filaments or products made from them, such as roving strands, staple binder mats, are also used for economic reasons. Gev / ebe or the like. In special applications, however, it is also possible to use fibers or threads of carbon, aramid, steel, and also mixtures of the abovementioned and / or other types of pas, whose modulus of elasticity has other values. Or for the production of semi-finished products, "telescope parts can also so-called prepregs _s example of fiberglass reinforced polyester ungesättigtem- used and

In this way, the dry winding method can be used. The telescope parts can also be made of liquid macromolecular. Materials, e.g. from unsaturated polyester or from epoxy resin and Paserverstärkungsmaterialien with the addition of curing catalysts and / or accelerators and / or sensitizers in liaßwickelverfahren be prepared. Depending on the type of fiber (roving * 'fabric, mat or the like) and the quality and duration of the impregnation and wetting and the type of hardening, slight differences in strength occur, which are usually negligible. In the development has also been found that the

each overlap or Einsteckkonuslänge the telescopic parts must be at least 1, preferably 3 "to 10 cm in order to secure the required strength, rigidity, elasticity, a burst, a rest stop, a tight fit and a long service life.

It also had to be taken into account that the overlapping and / or insertion cone corresponds to the cone of the telescopic parts and / or that of the stretched long stick.

Furthermore, the individual telescope parts should have a slenderness S between 15 and 75, preferably between 20 and 60, in particular at a taper K between 0.06o and 0.007, preferably between 0.002 and 0.004, because in this way, taking into account a preferred length of the individual telescope parts Between 300 and 400 mm, the number of Teleskpteile and thus the overlap points is low and on the other hand corresponds to this length of the briefcase width, so that the long stick in the collapsed state, eg can be plugged into the shopping or briefcase when shopping and any impairment of third parties or a repelling of goods or the like deleted from the outset.

In addition, in the aforementioned dimensions of Teleskopteiie and the long stick in the extended state, an additional screening or locking by spring or bolt, bayonet, thread or the like, not required,. Weil depending on S and K, a positive and / or adhesion to the Overlapping and / or Einsteckkonusflächen is generated as a result of pulling apart and stretching the long stick. ,

Furthermore, the telescopic Blindenlangstock has to prevent the autonomous stretching or slipping one in the Ifähe SJastköpfes attached and directed to the handle and there open cone piece whose cone or conicity is equal to or preferably greater 'of the telescopic parts and in which the individual telescope parts their ends or the largest telescopic part einscliiebbar and da.durch can be locked.

This cone piece is preferably made of a rigid or in particular a flexible material, z «B. from a

Metal or of a thermosetting or thermoset or 'rubber-like material. and is preferably formed simultaneously as a holder or adapter for the probe and the lower end of the lowermost telescopic part. Advantageously, the cone piece has at its one ¹ end side a threaded pin for die.auswechselbare recording of the probe and to its other end face located a the inner cone and / or of the inner cone outstanding preferably bring pin for receiving the lowermost telescopic member at its weakest point, the Outer diameter is equal to or greater than the smallest outer diameter of the second telescopic part, but must be smaller than the smallest inner diameter of the third telescopic part. Here, the threaded pin should be formed at its other end face as a hollow pin in the aforementioned sizes and the largest inner diameter must be greater than the smallest outer diameter of the uppermost or last telescope part «

For better adhesion, it is expedient that the surface of the telescopic parts and / or the cone piece, preferably at the overlapping and / or Einsteckkonusflächen is roughened slightly and / or has a twist, in particular a left and / or right twist and / or as mehrgängiges Thread (internal and external) is designed »To ensure the minimum weight of the Blindenlang-. Stick under 100 g, taking into account the high rigidity and elasticity, the wall thickness of the hollow telescopic parts should not be less than 0.2 mm and not greater than 1.5 mm.

Pure special environmental conditions, eg "B. in mountainous areas, it may be necessary, the lowest or on the probe arranged telescopic part of solid material, in particular fiber-reinforced. Form solid material and preferably in the draw or wound or in particular in the combined draw-winding process to produce, because cases may occur where in a strong impact, e.g. on a scree obstacle, such a telescope part a very high buckling load. must record and also absorbs and thereby this

^ - 2 ZD «5 4 3

Part or the long stick is secured before each destruction. As already stated, it has been found to be an advantage 'if the blind long stick consists of at least three, preferably four to six telescope parts, which in particular each have the same length, because thereby der.Stock can be easily stowed in a briefcase, especially when The base material or the matrix material consisting of plastic, in particular a synthetic resin, should contain white and / or fluorescent and / or phosphorescent pigments or colored pigments and / or glass microspheres at least close to the surface of the rod, because in this way even with prolonged use of the stick in the street traffic very easily by day and especially at night the stick is visible and even when illuminated by cars or the like reflected, z "B. as. a reflex reflector * Also, the surface of the pole can be at least partially provided with reflective layers, reflective films or the like, for better and easier installation of the handle on the top telescope part of the handle should be partially or completely formed with an inner cone, which is about the size of the cone of the top telescope part corresponds to «. Furthermore, the handle should be provided in its uppermost part with a closure or plug, for example made of rubber, to avoid falling out of the telescopic parts in the case of a conical Durchgangsoohe _e The probe is preferably provided with a female threaded blind hole or a threaded pin and in this way with the lowermost Telescope part, z »B, by screwing, exchangeably connected«,

Furthermore, it has been found that it is advantageous, when the telescope-shaped Blindenlangstock in the stretched state a cross-sectional outer preferred preference or "Preferred diameter (ϋ ___ + _ α.) From 7 to 11, in particular about 8 mm

2, because in this way the simultaneous stiffness and flexibility and the weight below 10 Og is relatively well feasible, with wall thickness mentioned ₈ In several samples of these long sticks weights were below 85 g «

To increase longevity or in the case of very large blind or visually impaired long-tailed animals over 1 »40 in., It may be necessary for the sticks or telescopic parts to be thickened outwards at their lower and / or upper ends and / or Tons or rings for reinforcement and / or Verziehrung be applied to these ends.

For amplifying and transmitting the touch noise, which transmits a specific information content, it is advantageous if the probe is hollow or has at least one cavity. -. , , , Advantageously, the probe contains a plurality of cavities, which are spatially arranged one behind the other, expand in the direction of the handle and communicate with each other communicating, preferably the last cavity is formed with through holes for the directional sound statement »

Also, the sound amplification and directional sound indication can be generated by the fact that the probe is funnel or loudspeaker membrane-shaped aligned in the direction of the handle or exhibits such objects.

The particular advantage of the described telescope-type Blindenlangstockes is that compared to all other known Blindenlangstöcken the user on the one hand / more information during the Tastkopfaufschlages (on the one hand by the Stock in the wrist., Itself transmitted and on the other hand by Tasthörhörhörschallübertragung) receives and on the other hand by the structure of the Long stick and its probe is able to select the transmitted through the long pole on the wrist and the probe to the ear and possibly reinforced by the probe information, quickly and constantly on the nature of the ground relief, obstacles and the like, on its size and Personality and its stationary or mobile condition and the like, to draw more inferences and react in good time to avoid collisions, accidents or the like from the outset «

Tests carried out have shown that the blind person with the inventive long cane is even capable of recognizing puddles or puddles on the road and avoiding them exactly.

Claims (10)

Br.-findungsansprucht 1 ♦ telescopic long cane, consisting of a plurality of nestable hollow bodies or tube pieces or • telescopic parts, one attached to the lower end of the probe and a disposed at the upper end of the handle, characterized in that the longitudinally tock in the stretched state · located a slenderness ratio S (ratio of the length to the mean cross-section or mean diameter) between 100 and 300, preferably between 125 and 175, in particular with a conicity K (cone size or cone size or diameter difference to length of the long stick) / between 0.01 and 0.001, preferably between 0.0012 and 0.0070 and made of metal or one; in particular fiber-reinforced macromolecular. Material consists, in particular made in the spin and / or preferably in the winding and / or in the draw-winding process, in particular of glass and / or mixed fibers or threads in Stangr and / or tape and / or tflächenform, as a staple mat, fabric or the like and a particular polymerizable, polykondeneierbaren or by polyaddition solidifiable plastic, possibly also from Trepregs that the overlap length is at least 1.0, preferably 3 to about 10 cm and that the respective overlap and / or insertion cone preferably the cone of Telescope parts and / or the stretched or extended long stick corresponds. 2. Telescope-like Blindenlangstock according to item 1, characterized in that the individual telescopic parts have a slenderness S between 15 and 75, preferably between 20 and 60, in particular at a taper K between 0.06 and 0.007, in particular between 0.002 and 0.004 have, ' _ι 3β 'Telescope-like Blindenlangstock after point .. 1 and 2 _S characterized ^ characterized in that the locking of the individual telescopic parts together in the extended state by positive and / or frictional connection, on the Öberlappungs- and / or Einsteckkonusflächen and in the collapsed state, in particular by a in the , Close to the probe attached and directed to the handle and open cone piece _{s s} ! Conus or * conicity equal or preferably large; which is the telescope parts «, '4 ο Telescope-like blind walking stick after point. 1 to 3 * characterized _s that the cone piece, "consists of a rigid or particularly a flexible material> ζ · Β of a metal or of a thermoplastic or thermosetting and / or rubber-like material and preferably at the same time as a support or intermediate piece for the Probe and the lower end of the lowest telescopic part is formed » 5. telescopic long cane according to item 1 to 4 $ characterized in that the conical piece _P a at its one end face. Threaded pin for the interchangeable recording of the probe and at its other end has a in the inner cone and / ο ν from the inner cone 'protruding preferably hollow pin for receiving © the lowest telescopic part at the weakest point, whose outer diameter · equal or greater. ¹ as the smallest outer diameter ^{1 of} the second, Tele.skopteiles, but smaller than the smallest inner diameter of the third 'TeleskopteilesV is 6 · Telescope - like · Blindenlangstock according to point 1 to 5 _S characterized in that the threaded pin on its other side as a hollow pin in the. is formed above mentioned sizes «' "14- dm JL OO &. 3 * 7. Telescope-like .Blindenlangstock after point. 1 to 6, characterized in that the largest inner diameter of the cone piece is greater than ¹ as the smallest outer diameter of the uppermost or last telescopic part, 8 · Telescope-like Blindenlangstock according to item 1 to 7, characterized in that) the surface of the telescopic parts and / or the cone piece is preferably roughened slightly on the overlapping and / or Einsteckkonusflächen and / or a twist in particular has a left and / or right twist and / or designed as a multi-start thread · 9 "Telescope-like Blindenlangstock after .Punkt 1 to 8-, characterized in that the wall thickness of the hollow telescopic parts is at least 0.2 mm to a maximum of 1.5 μ · 10. Telescope-like Blindenlangstock after point. 1 to 9 »characterized in that the lowest or in the cross section or ' Diameter smallest telescopic part made of solid material, in particular made of! Fiber-reinforced solid material and preferably in the Ziehoder V / i disgusting or in particular in the combined &ieh ~ winding method is prepared. 11 · Telescope-like Blindenlangstock according to item 1 to 10, characterized in that: this consists of at least three, preferably from four to six telescopic parts, in particular, each have the same lengths. 12 · Telescope-type blind long stick after point; 1 to 1.1, characterized in that the base material or, in particular, the plastic contains white and / or fluorescent and / or phosphorescent pigments or color pigments and / or microglaze beads. 1 ^ «Telescope-like Blindenlangstock after point 1 to 12 _? characterized in that its surface is at least partially provided with reflective layers, foil foil or the same s * 14e telescope-type blind long stick after point; 1 to 13 _? characterized in that the particular hollow 'handle is partially or completely: designed as an inner cone and in size and taper; adapted to the largest end of the uppermost Telesko.pteiles, and glued to this, or in vosugsweise shrinkable is * 15 · Telescope-type blind long stick after point. 1 to 14? characterized in that> the handle in its uppermost part a plug, or closure. for ^: avoiding the falling out of the telescope parts, * .. 16e Telescope-like Blindenlangstock after point, 1 to 15? characterized in that the probe has a threaded pin or, preferably, a female threaded hole, and is interchangeably connected in this way with the lowermost telescopic part and / or your cone piece * 17 ·. Telescope-like · Blindenlangstock according to item 1 to Ib ₉ characterized in that ₉ that. Weight less than 100 g » 18. Telescope-like Blindenlangstock according to item 1 to 17, characterized in that it has a medium preferred Querochnitt or »Vorzugsdurchrnesser of ']; _s especially has from about 8 mm to 11 wherein the smallest diameter is preferably above 4 mm and the largest diameter of less than 14 mm " 19. Telescope-like Blindenlangstock according to item 1 to 18, characterized in that the lower ends of the individual telescopic parts to the outside: thickened, and / or reinforced by applied spouts or Ringer.oder the like and / or veraiehrt are * 2 9 ς ο ο Q 20. Telescope-like Blindenlangstock according to item 1 to 19 »characterized in that the probe is hollow or has at least one cavity, 21 · Telescope-type blind extended stick according to item 1 to 20, characterized in that the probe arranged several consecutively and in the direction of the handle! contains communicatively connected cavities for sound amplification, preferably with Durchgangslb'chern in the largest cavity * 22. Telescope-like. Blindenlangstock after point t to 21, marked; in that the probe for sound amplification, funnel-shaped or loudspeaker-shaped in the direction of the handle or has such objects * 23 · Telescope-like blind walking stick after point; 1 to 22, characterized in that the lowermost or »last or thinnest telescopic part is made of spring steel full material © 24 «Telescope-like blind walking stick after point. 1: to 23 _S characterized in that. the lowermost or weakest KTelesköpteil of a fiber-reinforced plastic is "stands, which is flexible festfestigbar similar to a stiff rubber, in particular a flexible polymerizable or polycondensable polyester or epoxy resin: is or consists of several such resins of different flexibility, 25. Telescope-like. Blindenlangstock according to item 1 to 24, characterized in that the lowermost telescopic part consists of several thin hollow or full Pederstahl- and / or fiber-reinforced plastic rods.