EP0111023A1 - Dispositif de fixation de semelles interchangeables sur des aides pour la marche telles que béquilles ou similaires - Google Patents

Dispositif de fixation de semelles interchangeables sur des aides pour la marche telles que béquilles ou similaires Download PDF

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Publication number
EP0111023A1
EP0111023A1 EP82111480A EP82111480A EP0111023A1 EP 0111023 A1 EP0111023 A1 EP 0111023A1 EP 82111480 A EP82111480 A EP 82111480A EP 82111480 A EP82111480 A EP 82111480A EP 0111023 A1 EP0111023 A1 EP 0111023A1
Authority
EP
European Patent Office
Prior art keywords
snap
holder according
sleeve
support foot
sole body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82111480A
Other languages
German (de)
English (en)
Inventor
Xaver Frank
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
S & F ORTHOPAEDIETECHNIK GMBH
Original Assignee
S & F Orthopadietechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by S & F Orthopadietechnik GmbH filed Critical S & F Orthopadietechnik GmbH
Priority to EP82111480A priority Critical patent/EP0111023A1/fr
Priority to DE19828234957 priority patent/DE8234957U1/de
Priority to DE8383108427T priority patent/DE3368383D1/de
Priority to AT83108427T priority patent/ATE24274T1/de
Priority to EP83108427A priority patent/EP0111054B1/fr
Priority to JP58231636A priority patent/JPS59181156A/ja
Publication of EP0111023A1 publication Critical patent/EP0111023A1/fr
Withdrawn legal-status Critical Current

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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
    • A61H3/02—Crutches
    • A61H3/0288—Ferrules or tips therefor

Definitions

  • the invention relates to a holder for interchangeable sole bodies on walking aids, according to the preamble of patent claim 1.
  • the invention has for its object to provide a holder according to the preamble of claim 1, which allows a quick and very convenient replacement of the sole body and works reliably over long periods of time.
  • the snap lock can be operated with minimal effort and can be released in the shortest possible time without the need for any tools.
  • the sole body can therefore be replaced with minimal effort.
  • the ease of use also largely prevents the disabled from getting dirty when replacing the sole body, so that the replacement process becomes even more convenient.
  • the snap lock can be designed and designed according to the special requirements placed on it, regardless of the design and nature of the sole body, which only takes up a negligibly small amount during the replacement processes becomes.
  • the area of the snap lock can thus be optimized with regard to the greatest possible wear resistance and operational reliability, but at the same time also the area of the sole body with regard to optimal power transmission from the ground to the walking aid independently of the other area.
  • the snap lock when the support leg is connected to the protective tube of the walking aid via a ball joint, the snap lock can be designed to be particularly simple in terms of construction, since in this case it does not have to absorb any moments, but only exactly defined and limited tensile forces in the axial direction. The operational reliability and the lifespan of the snap lock can also be increased.
  • the holder is equally advantageous both for fastening a sole body designed as a reversing body, and for a sole body which has a tread that protrudes in the manner of a plate on the bottom.
  • the holder according to the invention can thus be used universally, in that the rim of the socket serves as a universal fitting surface for various plate-like sole bodies and for an annular sleeve which is open on both sides for axially securing a reversible sole body which is made of rubber-elastic and, for example, with one on one side Stud profile and on the other barrel side is provided with spikes.
  • the plate-like sole bodies are generally made of a material that has a sufficiently high strength so that the union sleeve can be integrally formed on the sole body.
  • the holder according to subclaim 5 can be operated very easily with the thumb and forefinger, the positive engagement of the locking surface sections with the respective undercut axial slots of the union sleeve being completely eliminated, so that the union sleeve can be pulled off the rim without resistance.
  • the undercut axial slots are easy to manufacture because they run into the upper edge of the union sleeve.
  • the snap pins can be provided with relatively large pin heads without impairing the snap lock, through which the operability of the releasable snap lock is additionally improved. Because the connection between the coupling sleeve and the socket rim can only be released by simultaneously pressing or pressing two snap pins, the functional reliability of the holder is additionally increased.
  • the guide in the support foot can be given a simple geometric shape.
  • the cylindrical locking and unlocking surface sections contribute to the undercut axial slots being easier to slide past the snap pins.
  • the cylindrical surface sections of the snap pins thus gradually bring the undercut axial slots into exact axial alignment with the snap pins.
  • the development according to subclaim 7 secures the snap pins on the one hand against falling out and assigns them to a precisely defined locking position regardless of the position of the other snap pin. Because the forces acting on the cap sleeve act in a direction that is perpendicular to the direction of movement of the snap pins, the compression spring biasing the snap pins can be made very weak, which makes the operation of the holder even more convenient.
  • the pin protruding into the diametral bore reliably fulfills the stop function with the simplest design.
  • Such a pin can, for example, be inserted into the support foot in a direction parallel to the axis of the coupling sleeve and can cooperate with a screwing in of the snap pins in the guide surface section.
  • the pin head is fitted with a fit in a recess of the union sleeve and covers the undercut axial slot, the risk of contamination of the snap lock is considerably reduced, so that the functional reliability of the holder can be further increased.
  • the snap pin Since the snap pin must protrude in the locking position by an amount from the socket edge or from the support foot, which results or represents the sum of the widths or heights of the pin head, the subsequent unlocking section, optionally the conical surface section and the locking surface section, it is cleaner hollow cylindrical design of the union sleeve with a relatively thin wall thickness to reduce the weight not possible to completely accommodate the pin heads within the union sleeve.
  • the pressure pins completely within the outer jacket surface of the union sleeve. This leaves a great deal of scope for dimensioning the width of the locking and unlocking surface sections of the snap pins.
  • the sinking of the pin heads which can be achieved in a simple manner, precludes unintentional striking of the pin heads on an object; Even when the support leg sinks in. Snow or mud or the like, no external pressure force can act on the snap pins.
  • This development has the additional advantage that no dirt can penetrate from the outside to the functional surface sections of the snap pins.
  • Fig. 1 shows a crutch 1
  • the support tube 2 carries a support foot 3 to which an interchangeable sole body 4 is attached.
  • the sole body 4 is formed, for example, by a rubber-elastic block which projects to a certain extent from the underside of a support foot plate, which is connected to the support tube 2 either rigidly or via an articulated connection, for example via a ball joint.
  • an elastic beam 5 extends from the support tube 2 to the support foot 3 in order to shield the joint connection from the surroundings.
  • the structure of the support foot 3 is shown in detail in Figures 2 to 5.
  • a spherical cap 7 is incorporated, which is in functional engagement with a ball pin, not shown, which is received with a clamp fit in the support tube 2 of the crutch 1.
  • the elastic beam 5 extends from the outer surface of the support body 6 to the ball pivot and, on the one hand, shields the ball joint surfaces from the outside and, on the other hand, returns the smooth-running ball joint to its neutral central position.
  • the support body 6 has essentially the shape of a plate which has a socket edge 8 of height H a protruding from the bottom.
  • the rim 8 is essentially ring-shaped in order to be able to receive a sole body 4 under lateral guidance.
  • the rim 8 can be formed by a continuous ring.
  • the clarified embodiment shows a frame edge which is interrupted at two diametrically opposite points by plane-parallel surfaces 9.
  • the flat surfaces 9 extend up to a radial collar 10, the function of which will be explained in more detail below.
  • the outer surface 11 of the frame edge 8 serves as a clearance fit surface for a union sleeve 12 which can be pushed on from below and which fixes the sole body 4 both in the lateral direction and in the axial direction of the support foot 3.
  • the position is fixed in the lateral direction by suitable adaptation of the inner surface to the boundary surface of the sole body 4, which in the embodiment shown is designed as a rubber-elastic reversible sole body.
  • the plane-parallel surfaces of the reversible sole body are provided on one side with a profile 41 and on the other side with steel pins 42, which are embedded or vulcanized into the rubber-elastic block.
  • the reversible sole body is shown with a dash-dotted line and has a radial collar 42 which is aligned with the end face of the rim 8, the lower or bottom collar surface of which is in contact with an inwardly drawn radial shoulder 13 of the coupling sleeve 12.
  • the radial shoulder 13 secures the sole body 4 against axial pulling off when the coupling sleeve 12 ′ is attached to the rim of the frame or to the support body 6.
  • the union sleeve 12 is fastened to the support body 6 by means of a snap connection 14 which can be released from the outside and which will be described in more detail below.
  • the snap connection consists of snap pins 15 and snap recesses 16 in the coupling sleeve 12.
  • the snap pins 15 are received in a bore 16 running diametrically through the support body 6 and are supported on one another via a compression spring 17 which, for example, fits into a cylindrical recess 18 of the snap pins 15 intervenes.
  • the compression spring 17 By means of the compression spring 17, the snap pins 15 are moved radially outward into a locking position shown in FIGS. 2 and 3 presses, which is fixed by a stop body.
  • the stop body is formed by a pin 19 which protrudes into the diametral bore 16 and is in contact with a radial shoulder 21 of a recess 20 of the snap pin 15 in the locked position of the snap pins.
  • the pins 19 are pressed from below into the support surface of the support body 6, the heads of the pins 19 being sunk in the support body 6.
  • the snap pins 15 have a plurality of functional sections which are staggered in the axial direction: with respect to the support foot axis radially inward there are a guide section 151, followed by the recess 20, followed by a cylindrical locking surface section 152 in the embodiment shown, followed by a cone section 153 which merges into an unlocking surface section 154, to which a pin head 155 connects.
  • the locking surface section 152 protrudes from the flat surface 9 of the support body 6 by a dimension V.
  • the snap pin 15 By pressing the pin head 155, the snap pin 15 can be pushed into the diametral bore 16 against the force of the compression spring 17 to such an extent that the locking surface section 152 and the conical surface 153 come to lie within the support body 6. In the unlocked position of the snap pins 15, the unlocking surface sections 154 thus come to lie in the immediate vicinity of the plan surfaces 9.
  • the coupling sleeve 12 In adaptation to the design of the snap pins 15, the coupling sleeve 12, the inner surface of which is in all-round fitting contact with the socket edge 8, also has flat surfaces 22 at diametrically opposite locations, which are when the coupling sleeve 12 is pushed on with the flat surfaces 9 of the support body 6 are in leading functional engagement. In the area of these flat surfaces 22, the coupling sleeve 12 therefore has a material accumulation 23, the thickness S of which is large enough so that the pin heads 155 come to lie radially inside the lateral surface of the coupling sleeve 12 in the locking position of the snap pins 15.
  • the outer surfaces of the pin heads 155 suitably end flush with the cylindrical surface of the union sleeve 12.
  • the sleeve 12 is formed symmetrically to a plane 24, which coincides with the central plane of the diametral bore 16 in the support body 6 in the pushed-on state of the coupling sleeve 12.
  • a plane 24 which coincides with the central plane of the diametral bore 16 in the support body 6 in the pushed-on state of the coupling sleeve 12.
  • undercut axial grooves 26 are formed or incorporated symmetrically to the plane 24, which are geometrically matched to the design of the snap pins 15.
  • the undercut axial slot 26 has a radial extent T which is approximately one third of the thickness S and essentially of the dimension V, but above all is not greater than the axial extent E of the unlocking surface section 154.
  • the axial slot 26 is adjoined radially on the outside Recess 27 in which the respective pin head 155 is received in a form-fitting manner.
  • the recess -27 has a stop shoulder 28 against which the inner surface of the pin head 155 can be pressed to unlock the snap connection 14.
  • the undercut axial slot 26 has an undercut surface 29, which is formed by a partial cylinder jacket surface, which can receive the locking surface section 152 of the snap pin 15 in a form-fitting manner.
  • the undercut surface 29 ends at the top a constriction 30 formed by two edges, the width W of which is somewhat larger than the thickness or the diameter of the unlocking surface section 154 of the associated snap pin 15.
  • the axial slot 26 widens slightly from the constriction 30 to the upper edge 25 of the coupling sleeve 12 in order to make the snap-in pins 15 snap into the axial slots 26 more easily.
  • the undercut axial slots 26 have in the area; in which the axial slot widens slightly from the constriction 30 to the upper edge 25, radially inward-pointing wedge-shaped chamfers 31, which are visible in FIGS. 2 and 5. These chamfers 31 come into contact with the conical surfaces 153 of the snap pins 15 and push them into the diametral bore 16 until the unlocking surface sections 154 can slide through the constriction 30 of the axial slot 26 when the union sleeve 12 is pushed onto the socket edge 8.
  • the pins 15 snap outwards under the action of the compression spring 18 and positively engage with the undercut 29 with the locking surface sections 152.
  • the undercut surfaces 29 cooperate with the locking surface sections 152 in the locking position in such a way that the coupling sleeve 12 is stretched elastically upwards in the locked position.
  • the turning body 4 is supported on the supporting body 6 both via its radial collar 42 and via its flat surface facing away from the floor.
  • the support can also be provided via the steel pins 43, in which case, however, care should be taken to ensure that these pins do not press into the flat support surface 61 of the support body 6.
  • the holder is suitable not only for the detachable fastening of interchangeable cylindrical sole bodies, but in particular also for securing plate-like protruding support bodies, such as are used in a particularly advantageous manner when the disabled wants to move on very flexible ground.
  • the sleeve is firmly connected to the sole body or integrally formed on it and otherwise formed in the same manner as described above.
  • the introduction of the support force from the sole body into the support body 6 can take place via the top edge 25 and the radial shoulder 10 of the support body 6 and / or via the end face of the frame edge 8.
  • the coupling sleeve 12 can in this case be guided relatively far downward, so that the sole body only protrudes a few mm from the radial shoulder 13.
  • the support foot can then be reliably placed on the entire surface of the sole body due to the ball joint if the coupling sleeve 12 only has a small face 32 at the lower end.
  • the support foot remains very light, so that the disabled does not tire too quickly even on long walks, even with a plate-shaped and large sole body.
  • the axial pins 19 preferably come into contact with the other radial shoulder of the recess 20, so that in this case there is also a defined position of the snap pins which can be maintained without applying force to the coupling sleeve.

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)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Rehabilitation Tools (AREA)
EP82111480A 1982-12-10 1982-12-10 Dispositif de fixation de semelles interchangeables sur des aides pour la marche telles que béquilles ou similaires Withdrawn EP0111023A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP82111480A EP0111023A1 (fr) 1982-12-10 1982-12-10 Dispositif de fixation de semelles interchangeables sur des aides pour la marche telles que béquilles ou similaires
DE19828234957 DE8234957U1 (de) 1982-12-10 1982-12-13 Halterung fuer auswechselbare sohlenkoerper an gehhilfsmitteln, wie z.b. kruecken oder dergleichen
DE8383108427T DE3368383D1 (en) 1982-12-10 1983-08-26 Mounting for interchangeable sole pieces on walking aids, such as crutches or the like
AT83108427T ATE24274T1 (de) 1982-12-10 1983-08-26 Halterung fuer auswechselbare sohlenkoerper an gehhilfsmitteln, wie z. b. kruecken oder dergleichen.
EP83108427A EP0111054B1 (fr) 1982-12-10 1983-08-26 Dispositif de fixation de semelles interchangeables sur des aides pour la marche telles que béquilles ou similaires
JP58231636A JPS59181156A (ja) 1982-12-10 1983-12-09 交換可能の歩行補助具用石突きの保持具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82111480A EP0111023A1 (fr) 1982-12-10 1982-12-10 Dispositif de fixation de semelles interchangeables sur des aides pour la marche telles que béquilles ou similaires

Publications (1)

Publication Number Publication Date
EP0111023A1 true EP0111023A1 (fr) 1984-06-20

Family

ID=8189388

Family Applications (2)

Application Number Title Priority Date Filing Date
EP82111480A Withdrawn EP0111023A1 (fr) 1982-12-10 1982-12-10 Dispositif de fixation de semelles interchangeables sur des aides pour la marche telles que béquilles ou similaires
EP83108427A Expired EP0111054B1 (fr) 1982-12-10 1983-08-26 Dispositif de fixation de semelles interchangeables sur des aides pour la marche telles que béquilles ou similaires

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP83108427A Expired EP0111054B1 (fr) 1982-12-10 1983-08-26 Dispositif de fixation de semelles interchangeables sur des aides pour la marche telles que béquilles ou similaires

Country Status (3)

Country Link
EP (2) EP0111023A1 (fr)
JP (1) JPS59181156A (fr)
DE (2) DE8234957U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5088513A (en) * 1986-02-12 1992-02-18 Schilling-Ostermeyer Maschinenbau Gmbh Support leg for stick-shaped walking aids

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332959Y2 (fr) * 1984-11-29 1991-07-12
JPH0284630U (fr) * 1988-12-19 1990-07-02
DE20212450U1 (de) 2002-08-10 2002-10-10 Schäfer, Antonius, Dipl.-Finanz-Betriebsw., 45468 Mülheim Stand- (Stell-) Vorrichtung für Unterarmgehstützen (Stockstützen, Gehhilfen)
JP2013017715A (ja) * 2011-07-13 2013-01-31 Yasuharu Shidosawa 歩行を補助するための杖
SE545710C2 (en) * 2022-04-19 2023-12-19 Milmas Ab Exchangeable ferrule for crutch, cane, walking stick or ski stick comprising snap-lock and splines

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410629A (fr) * 1909-08-18 1910-05-25 William Campbell Mackay Embout ou tampon élastique
FR481542A (fr) * 1916-04-19 1916-12-13 Adolf Haltman Bouteilles non remplissables
FR791025A (fr) * 1934-08-06 1935-12-02 Silencieux et amortisseurs pour pieds de meubles, etc.
FR2213661A5 (fr) * 1973-01-05 1974-08-02 Saine Jacques
CH591827A5 (en) * 1975-10-15 1977-09-30 Pozzo Freres Maison Antislip device for sticks or crutches - has teeth on ring fitted to supple terminal ferrule
US4098283A (en) * 1977-02-16 1978-07-04 The Raymond Lee Organization, Inc. Specialized crutch tips
DE3112315A1 (de) * 1981-03-28 1982-10-07 Heinz 5600 Wuppertal Ahlswede "gehstock fuer behinderte"

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410629A (fr) * 1909-08-18 1910-05-25 William Campbell Mackay Embout ou tampon élastique
FR481542A (fr) * 1916-04-19 1916-12-13 Adolf Haltman Bouteilles non remplissables
FR791025A (fr) * 1934-08-06 1935-12-02 Silencieux et amortisseurs pour pieds de meubles, etc.
FR2213661A5 (fr) * 1973-01-05 1974-08-02 Saine Jacques
CH591827A5 (en) * 1975-10-15 1977-09-30 Pozzo Freres Maison Antislip device for sticks or crutches - has teeth on ring fitted to supple terminal ferrule
US4098283A (en) * 1977-02-16 1978-07-04 The Raymond Lee Organization, Inc. Specialized crutch tips
DE3112315A1 (de) * 1981-03-28 1982-10-07 Heinz 5600 Wuppertal Ahlswede "gehstock fuer behinderte"

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5088513A (en) * 1986-02-12 1992-02-18 Schilling-Ostermeyer Maschinenbau Gmbh Support leg for stick-shaped walking aids

Also Published As

Publication number Publication date
EP0111054A1 (fr) 1984-06-20
JPS59181156A (ja) 1984-10-15
DE3368383D1 (en) 1987-01-29
EP0111054B1 (fr) 1986-12-17
DE8234957U1 (de) 1983-07-21

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