Claims
- 1. A support leg for a canelike walking aid, comprising:
- a cylindrical adapter part to which a support tube of a walking aid may be fitted to extend in a direction of support;
- a sole body adapted to bear on the ground; and
- joint means connecting said adapter part and said sole body for permitting elastic swivelling about an axis extending generally in a direction of support between said adapter part and said sole body, said joint means comprising a composite body including:
- a) one stiffener component comprising said adapter part,
- b) another stiffener component comprising a support plate supporting said sole body and being axially spaced from said adapter part by an axial space along the direction of support, and a cylindrical stabilizing collar extending substantially perpendicularly from said support plate and having a diameter greater than said adapter part, wherein said stabilizing collar is positioned around, and is radially spaced from, said adapter part, and
- c) an elastic body in which said stiffener components are imbedded, except in said axial space, wherein a portion of said elastic body between said adapter part and said stabilizing collar comprises a shear section,
- whereby said stiffener components can pivot, shift and twist relative to one another in response to loads applied from said support tube by shearing of said shear section, said shearing being stabilizied and guided by said stiffener components.
- 2. Support leg according to claim 1, wherein the elastic body has characteristic physical features and the shear section has a radial length and the amount of said axial spacing is selected as a function of at least one of the physical features of said elastic body and the radial length of said shear section.
- 3. Support leg according to claim 1, wherein the adapter part is formed by a hollow cylinder having an inner shoulder on a bottom side thereof.
- 4. Support leg according to claim 1, wherein the support plate is formed by an annular plate.
- 5. Support leg according to claim 4, wherein said support plate is bordered peripherally by an elastic material.
- 6. Support leg according to claim 1, wherein said elastic material is formed from a rubber mixture that can be vulcanized.
- 7. Support leg according to claim 6, wherein said stiffer components are vulcanized together with the elastic material.
- 8. Support leg according to claim 6, wherein the stiffer components consist of aluminum.
- 9. Support leg according to one of claims 6 or 7, wherein one of said adapter part and said support arrangement consists of one of plastic and aluminum.
- 10. Support leg according to claim 1 wherein said elastic swivelling has a maximum angle of about 30.degree..
- 11. Support leg according to claim 1 wherein said axial space has an axial length between 5 and 15 mm.
- 12. Support leg according to claim 1 wherein said another stiffener component has a surrounding edge for receiving various sole bodies.
- 13. Support leg according to claim 1, wherein a maximum angle of rotation of the joint means is about 35.degree..
- 14. Support leg according to claim 1 wherein said elastic body has annular rings forming a seal for the support tube.
- 15. A support leg for a canelike walking aid, comprising:
- an adapter part to which a support tube of a walking aid may be fitted, said support tube having a direction of elongation;
- a sole body adapted to bear on the ground; and
- joint means connecting said adapter part and said sole body for permitting elastic swivelling about an axis extending generally in the direction of elongation, said joint means comprising a composite body including:
- a) one stiffener component comprising said adapter part;
- b) another stiffener component supporting said sole body and being axially spaced from the one stiffener component by an axial space along the direction of support elongation, wherein said one stiffener component and said another stiffener component have stabilizing portions spaced in the axial and in a radial direction transverse to said axial direction, relative to the direction of elongation of said support tube, to form a shear section, and
- c) an elastic body in which said stiffener components are embedded, and provided in said shear section except in said axial space such that said elastic body is not compressed between said stiffener components, whereby said stiffener components can pivot, shift and twist relative to one another in response to a load applied from said support tube while being stabilized and guided by said axially spaced stiffener components.
- 16. Support for leg according to claim 15, in which the adapter part is formed by a cylindrical body, and the another stiffness component has a support plate, wherein said elastic body is a rotationally symmetrical elastic body incorporated between an outer cylinder surface of said adapter part and a surface of said support plate facing away from the sole body.
- 17. Support leg according to claim 16, wherein an outer surface of the rotationally symmetrical elastic body has the form of a paraboloid.
- 18. Support leg according to claim 3, wherein a cylindrical section of the adapter part is completely embedded in said elastic body.
- 19. Support leg according to claim 18, wherein said adapter part has, on an inner side thereof, a thin covering layer in which are formed several longitudinal grooves distributed evenly over a periphery thereof, which grooves end below an upper edge of said elastic body.
- 20. Support leg according to claim 1, wherein the adapter part is formed from a hollow cylinder having a height selected as a function of one of a height of said stabilizing collar arrangement, the physical features of said elastic material and said axial offset between said adapter part and said support plate, and so as to provide a predetermined shear value.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3604414 |
Feb 1986 |
DEX |
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Parent Case Info
This application is a division of application Ser. No. 07/269,789, filed as PCT/EP87/00067, Feb. 12, 1987, now abandoned.
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Divisions (1)
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Number |
Date |
Country |
Parent |
269789 |
Aug 1988 |
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