New! View global litigation for patent families

US2453742A - Terminal attachment for crutches and the like - Google Patents

Terminal attachment for crutches and the like Download PDF

Info

Publication number
US2453742A
US2453742A US58446245A US2453742A US 2453742 A US2453742 A US 2453742A US 58446245 A US58446245 A US 58446245A US 2453742 A US2453742 A US 2453742A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
plate
ball
ferrule
fig
ground
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.)
Expired - Lifetime
Application number
Inventor
Henry B Bowen
Arthur M Vineberg
Original Assignee
Henry B Bowen
Arthur M Vineberg
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
Grant date

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/06Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623Construction or details of the socket member
    • F16C11/0647Special features relating to adjustment for wear or play; Wear indicators
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL 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
    • A61H3/00Appliances for aiding patients or disabled persons to walk about
    • A61H3/02Crutches
    • A61H3/0288Ferrules or tips therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL 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
    • A61H3/00Appliances for aiding patients or disabled persons to walk about
    • A61H3/02Crutches
    • A61H3/0244Arrangements for storing or keeping upright when not in use
    • A61H2003/0272Arrangements for storing or keeping upright when not in use on a single crutch allowing it to remain upright when not in use, e.g. retractable tripods
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL 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
    • A61H3/00Appliances for aiding patients or disabled persons to walk about
    • A61H3/02Crutches
    • A61H3/0288Ferrules or tips therefor
    • A61H2003/0294Ferrules or tips therefor comprising a ball-and-socket joint
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/32Articulated members
    • Y10T403/32606Pivoted
    • Y10T403/32631Universal ball and socket
    • Y10T403/32713Elastomerically biased or backed components
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/32Articulated members
    • Y10T403/32991Axially spring-biased coaxial members
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/45Flexibly connected rigid members

Description

Patented Nov. 16, 1948 TERMINAL ATTACHMENT FOB CRUTCHES AND THE LIKE Henry B. Bowen and Arthur M. Vineberg,

Montreal, Quebec, Canada 1945, Serial No. 584,462

" Application March 23 1 Claim.

This invention relates to ground-engaging terminal attachments for crutches, canes, ladders and the like and the object is to provide a termi-- nal attachment which gives exceptionally wide bearing area and is adapted to make fiat contact with the ground irrespective of the relative angular position of the crutch or other article to which it is applied.

More particularly, the invention comprises a ferrule connected to the central portion of a relatively large plate provided with a plurality of widely spaced ground-engaging lugs or feet depending from portions of the plate projecting a substantial distance laterally beyond the ferrule. The ferrule and plate are connected together by means permitting relative angular motion thereof so that the ground-engaging lugs of the plate will bear squarely on the ground when the crutch or other article to which the ferrule is applied is in a slanting position with reference to the ground.

Proceeding now to a more detailed description reference will be had to the accompanying drawings, wherein:

Fig. 1 is a plan view of one embodiment of our invention applied to a crutch which is shown in section.

Fig. 2 is a side elevational view, partly in section, of the assembly shown in Fig. 1.

Fig. 3 is a View similar to Fig. l but showing a slightly modified assembly.

Fig. 4 is a, side elevational view, partly in section, of the modified assembly shown in Fig. 3.

In the assembly shown in Figs. 1 and 2, 5 desi nates a ferrule fitted on the lower end of a crutch stick 6. The lower end of ferrule 5 is formed to provide a downwardly facing shoulder I surrounding an internally threaded neck extension 8 into which is screwed the shank 9 of a ball member Iii forming part of a ball and socket connection II provided between the ferrule and the central portion of a triangular plate I2. The corner portions of plate I2 project a substantial distance laterally beyond the ferrule and are provided with depending ground-engaging lugs I3 which may be of solid or hollow construction and may be formed integral with said plate or riveted or otherwise secured thereto. The plate I2 is provided with a central opening I4 through which shank 9 of ball I is passed'upwardly for screw threaded engagement with the neck 8 of ferrule 5. The wall of opening I4 is spherically curved to provide a ball seat against which the ball is held by a retaining plug I provided with a spherically curved ball-engaging seat I6. The plug I5 is screwed into a threaded socket I'I formed integral with the underside of plate I I. I

A coil spring I8 is interposed between ferrule 5 and plate I2 so that the upper end of the spring bears against shoulder I while the lower end of the spring is seated in a recess I9 provided in the upper surface of plate I2. As indicated by dotted lines in Fig. 2 each of the depending groundengaging lugs 13 of plate I2 may have a cushion-- ing cup 20 of rubber or similar cushioning material fitted thereon.

Spring I8 normally tends to maintain ferrule 5 perpendicular to the plane of the upper surface of plate I2 but is yieldable to permit the relative angular motion between the plate and the ferrule which is provided for by the ball and socket connection between these parts. As previously stated, the ball and socket connection permits the ground-engaging lugs of the plate to make and maintain fiat contact with the ground when the ferrule and the article to which it is attached are inclined with reference to the ground as indicated by dotted lines in Fig. 2.

The assembly shown in Figs. 3 and 4 is substantially the same as that previously described except that the spring I8 is replaced by a rubber ring 22 provided with a lower portion 23 of reduced diameter which is fitted in the recess I9 of plate I2. The rubber ring serves the same purpose as the previously mentioned spring I8.

In some cases, particularly where the attachment is applied to a ladder, the cushioning cups 20 shown in Fig. 2 may be omitted and the lugs provided, as indicated by dotted lines in Fig, 4, with conical points or spikes 25 adapted to dig into the ground.

An important feature of the invention resides in the fact that the pressure transmitted to plate I2 through the ball and socket connection has no tendency to overturn said plate even when the ferrule 5 is at the maximum permissible angle of inclination with respect to said plate. In this connection it will be noted that the lowest point of engagement between the ball I0 and its socket is located a substantial distance below the lowest surface of the plate.

Having thus described our invention it will be understood that various modifications may be resorted to Within the scope and spirit of the invention as defined by the appended claim. For example, the ferrule 5 and plate I2 may be connected together by any suitable means that will permit of the necessary relative angular motion thereof and the plate l2, instead of being triangular, may be of any other desired shape, the

principal consideration being that the groundengaging lugs of the plate are Widely spaced and formed integral with or attached to portions of the plate which project a substantial distance laterally beyond the ferrule. It will also be understood that the lugs l3 depending from plate I2 may vary in number or shape and may be formed integral with Or attached to the plate in any desired manner.

We claim:

A terminal attachment of the character de-- scribed, comprising a plate provided with acentral vertical opening having its defining wall spherically curved to provide a ball seat, a socketforming wall extending downwardly from a portion of the plate encircling said opening, groundengaging members extending downwardly from portions of the plate located outwardly of said wall, a ball member fitted against said ball seat so that the major portion of the ball member is disposed below the upper surface of the plate with a substantial portion of the ball member lying below the bottom surface of the plate and within the socket formed by said wall, a ball-retaining plug removably secured in said socket and provided with an upwardly facing, spherically curved seat engaging the portion of the ball disposed within said socket, a ferrule havin its lower end secured to a part of the ball projecting above said plate and resilient biasing means arranged to act against said plate and said ferrule.

HENRY B. BOWEN. ARTHUR M. VINEBERG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 332,684 Tuttle Dec. 15, 1885 765,984 Morris July 26, 1904 1,672g596 Zerk June- 5, 1946

US2453742A 1945-03-23 1945-03-23 Terminal attachment for crutches and the like Expired - Lifetime US2453742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2453742A US2453742A (en) 1945-03-23 1945-03-23 Terminal attachment for crutches and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2453742A US2453742A (en) 1945-03-23 1945-03-23 Terminal attachment for crutches and the like

Publications (1)

Publication Number Publication Date
US2453742A true US2453742A (en) 1948-11-16

Family

ID=24337418

Family Applications (1)

Application Number Title Priority Date Filing Date
US2453742A Expired - Lifetime US2453742A (en) 1945-03-23 1945-03-23 Terminal attachment for crutches and the like

Country Status (1)

Country Link
US (1) US2453742A (en)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2635904A (en) * 1949-10-11 1953-04-21 Stanley Works Rope attaching means
US3163437A (en) * 1962-09-28 1964-12-29 Phillipson Phillip William Ski pole baskets
US3168014A (en) * 1962-09-11 1965-02-02 Alkon Products Corp Mounting arrangement for hydraulic piston and cylinder
US3199886A (en) * 1963-11-14 1965-08-10 Dynacone Inc Ski pole
DE1295300B (en) * 1963-12-20 1969-05-14 Bofors Ab Control unit with two degrees of freedom with a universal joint mounted in a control lever
US4135536A (en) * 1977-08-18 1979-01-23 Willis Wilburn C Tip members for crutches and the like
US4141375A (en) * 1978-02-03 1979-02-27 Tykwinski Leonard M Knee crutch-cane
US4203683A (en) * 1977-04-12 1980-05-20 Cam Gears Limited Ball joints
FR2614529A1 (en) * 1987-04-29 1988-11-04 Levasseur Daniel Walking aid of the elbow crutch type or the like
FR2637178A1 (en) * 1988-09-30 1990-04-06 Levasseur Daniel Cane like "English" or similar
US5103849A (en) * 1990-12-17 1992-04-14 Hamner Lewis N Hiker's staff with point
US5113887A (en) * 1989-07-27 1992-05-19 Herman Jr Harry H Mobility assisting devices
US5193567A (en) * 1991-10-29 1993-03-16 Razny Jr Frank R Mobility enhancement device
US5217033A (en) * 1989-07-27 1993-06-08 Herman Jr Harry H Mobility assisting device
US5344250A (en) * 1989-02-17 1994-09-06 Actmedia, Inc. Advertising display mounting device
US5640986A (en) * 1994-06-29 1997-06-24 Herman; Harry H. Mobility assisting device
US5653547A (en) * 1994-09-30 1997-08-05 Thk Co., Ltd. Spherical joint with an elastic cap
EP0824200A1 (en) * 1996-08-12 1998-02-18 Minebea Co.,Ltd. Stud having a spherical surface bearing
EP1097691A1 (en) * 1998-07-27 2001-05-09 Jacqueline Ann Robins Walking aid device
US6394117B1 (en) * 1998-09-23 2002-05-28 Bodyworks Properties Limited Plug for connecting to a walker
US20070144568A1 (en) * 2005-12-13 2007-06-28 University Of Maryland Crutch-like mobility assist device with rotatable footer assembly
US20100313925A1 (en) * 2009-06-16 2010-12-16 Jin Shan Jiang Base structure for a walking stick
US20110005559A1 (en) * 2007-07-02 2011-01-13 Jesse Daily Crutch Assembly
US20110094552A1 (en) * 2009-10-27 2011-04-28 King-Chang Wu Walking Stick With All-Rounded Support
GB2494906A (en) * 2011-09-23 2013-03-27 Gdf Medical Ltd A support foot having a resiliently biased pivot
US8778031B1 (en) * 2010-09-23 2014-07-15 Clemson University Limb prosthesis
US20140299168A1 (en) * 2013-04-08 2014-10-09 martFIVE LLC Walking aid including a bendable puck coupled between a foot and handle
US9226556B1 (en) * 2014-11-06 2016-01-05 Li-Sheng Chien Foot base for assistive device
USD752854S1 (en) 2014-01-16 2016-04-05 Juvo Products Llc Standing cane tip elements
USD754963S1 (en) 2014-03-20 2016-05-03 Alltech Design Llc Base for a cane
US9386830B2 (en) 2014-10-02 2016-07-12 Hurryworks Llc Walking aid device
GB2536934A (en) * 2015-04-01 2016-10-05 Hedges Robert Improvements in or relating to a multi-terrain traversal device
US20170208910A1 (en) * 2016-01-22 2017-07-27 Homecare Enterprise Co., Ltd. Base structure for walking stick
USD800441S1 (en) * 2016-01-22 2017-10-24 William L. Hobbick Foot attachment for a crutch
USD811720S1 (en) 2013-04-08 2018-03-06 Hurryworks Llc Cane
USD812366S1 (en) * 2016-05-10 2018-03-13 William L. Hobbick Foot attachment for a crutch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US332684A (en) * 1885-12-15 Crutch
US765984A (en) * 1899-02-24 1904-07-26 John W Morris Foot for crutches or canes.
US1672596A (en) * 1925-09-09 1928-06-05 Oscar U Zerk Tripod

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US332684A (en) * 1885-12-15 Crutch
US765984A (en) * 1899-02-24 1904-07-26 John W Morris Foot for crutches or canes.
US1672596A (en) * 1925-09-09 1928-06-05 Oscar U Zerk Tripod

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2635904A (en) * 1949-10-11 1953-04-21 Stanley Works Rope attaching means
US3168014A (en) * 1962-09-11 1965-02-02 Alkon Products Corp Mounting arrangement for hydraulic piston and cylinder
US3163437A (en) * 1962-09-28 1964-12-29 Phillipson Phillip William Ski pole baskets
US3199886A (en) * 1963-11-14 1965-08-10 Dynacone Inc Ski pole
DE1295300B (en) * 1963-12-20 1969-05-14 Bofors Ab Control unit with two degrees of freedom with a universal joint mounted in a control lever
US4203683A (en) * 1977-04-12 1980-05-20 Cam Gears Limited Ball joints
US4135536A (en) * 1977-08-18 1979-01-23 Willis Wilburn C Tip members for crutches and the like
US4141375A (en) * 1978-02-03 1979-02-27 Tykwinski Leonard M Knee crutch-cane
FR2614529A1 (en) * 1987-04-29 1988-11-04 Levasseur Daniel Walking aid of the elbow crutch type or the like
FR2637178A1 (en) * 1988-09-30 1990-04-06 Levasseur Daniel Cane like "English" or similar
US5344250A (en) * 1989-02-17 1994-09-06 Actmedia, Inc. Advertising display mounting device
US5472289A (en) * 1989-02-17 1995-12-05 Actmedia, Inc. Advertising display mounting device
US5217033A (en) * 1989-07-27 1993-06-08 Herman Jr Harry H Mobility assisting device
US5113887A (en) * 1989-07-27 1992-05-19 Herman Jr Harry H Mobility assisting devices
US5103849A (en) * 1990-12-17 1992-04-14 Hamner Lewis N Hiker's staff with point
US5193567A (en) * 1991-10-29 1993-03-16 Razny Jr Frank R Mobility enhancement device
US5640986A (en) * 1994-06-29 1997-06-24 Herman; Harry H. Mobility assisting device
US5653547A (en) * 1994-09-30 1997-08-05 Thk Co., Ltd. Spherical joint with an elastic cap
EP0824200A1 (en) * 1996-08-12 1998-02-18 Minebea Co.,Ltd. Stud having a spherical surface bearing
EP1097691A1 (en) * 1998-07-27 2001-05-09 Jacqueline Ann Robins Walking aid device
US6394117B1 (en) * 1998-09-23 2002-05-28 Bodyworks Properties Limited Plug for connecting to a walker
US20070144568A1 (en) * 2005-12-13 2007-06-28 University Of Maryland Crutch-like mobility assist device with rotatable footer assembly
US7581556B2 (en) 2005-12-13 2009-09-01 University Of Maryland Crutch-like mobility assist device with rotatable footer assembly
US8596288B2 (en) 2007-07-02 2013-12-03 Core Consulting, Llc Crutch assembly
US20110005559A1 (en) * 2007-07-02 2011-01-13 Jesse Daily Crutch Assembly
US9326572B2 (en) 2007-07-02 2016-05-03 Core Consulting, Llc Crutch assembly
US8166990B2 (en) 2007-07-02 2012-05-01 Core Consulting, Llc Crutch assembly
US20100313925A1 (en) * 2009-06-16 2010-12-16 Jin Shan Jiang Base structure for a walking stick
US8176927B2 (en) 2009-10-27 2012-05-15 King-Chang Wu Walking stick with all-rounded support
US20110094552A1 (en) * 2009-10-27 2011-04-28 King-Chang Wu Walking Stick With All-Rounded Support
US8778031B1 (en) * 2010-09-23 2014-07-15 Clemson University Limb prosthesis
GB2494906A (en) * 2011-09-23 2013-03-27 Gdf Medical Ltd A support foot having a resiliently biased pivot
USD811720S1 (en) 2013-04-08 2018-03-06 Hurryworks Llc Cane
US9084458B2 (en) * 2013-04-08 2015-07-21 Hurrycane Llc Walking aid including a bendable puck coupled between a foot and handle
US20140299168A1 (en) * 2013-04-08 2014-10-09 martFIVE LLC Walking aid including a bendable puck coupled between a foot and handle
US9456671B2 (en) 2013-04-08 2016-10-04 Hurryworks Llc Walking aid including bendable puck coupled between a foot and handle
USD752854S1 (en) 2014-01-16 2016-04-05 Juvo Products Llc Standing cane tip elements
USD754963S1 (en) 2014-03-20 2016-05-03 Alltech Design Llc Base for a cane
US9386830B2 (en) 2014-10-02 2016-07-12 Hurryworks Llc Walking aid device
US9226556B1 (en) * 2014-11-06 2016-01-05 Li-Sheng Chien Foot base for assistive device
GB2536934A (en) * 2015-04-01 2016-10-05 Hedges Robert Improvements in or relating to a multi-terrain traversal device
US20170208910A1 (en) * 2016-01-22 2017-07-27 Homecare Enterprise Co., Ltd. Base structure for walking stick
USD800441S1 (en) * 2016-01-22 2017-10-24 William L. Hobbick Foot attachment for a crutch
USD812366S1 (en) * 2016-05-10 2018-03-13 William L. Hobbick Foot attachment for a crutch

Similar Documents

Publication Publication Date Title
US3441974A (en) Adjustable leg support
US4899771A (en) Walking aid
US6131593A (en) Tip for a cane or the like
US3191213A (en) Swivel type furniture-supporting glide
US2429409A (en) Crutch
US4598946A (en) Rocking infant seat
US2568654A (en) Crutch
US3099244A (en) Road markers
US2764774A (en) Mop having a disposable mop pad
US3099103A (en) Ball joint feet for ladders and the like
US5176354A (en) Blanket anchor
US2643843A (en) Sand-anchoring device
US1903609A (en) Glider for furniture legs
US6138979A (en) Isolating foot pad
US1361078A (en) Antislipping device for shoes
US3448749A (en) Non-skid attachment for the ground-engaging end of canes,crutches,and the like
US2051251A (en) Retaining mechanism for casters or the like
US6626405B1 (en) Replaceable floor protectors
US3193205A (en) Sprinkler system support means
US2260381A (en) Valve assembly
US4510957A (en) Resilient support foot for walking aids, particularly crutches
US3166782A (en) Furniture glide
US2254973A (en) Adjustable caster construction
US4206811A (en) Hoof covering
US2600103A (en) Means for absorbing ice pressure