US2528706A - Extensible crutch - Google Patents
Extensible crutch Download PDFInfo
- Publication number
- US2528706A US2528706A US690132A US69013246A US2528706A US 2528706 A US2528706 A US 2528706A US 690132 A US690132 A US 690132A US 69013246 A US69013246 A US 69013246A US 2528706 A US2528706 A US 2528706A
- Authority
- US
- United States
- Prior art keywords
- section
- crutch
- extensible
- foot
- leg
- 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
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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
-
- 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
- A61H3/0277—Shock absorbers therefor
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32426—Plural distinct positions
- Y10T403/32442—At least one discrete position
- Y10T403/32451—Step-by-step adjustment
- Y10T403/32459—Retainer extends through aligned recesses
Definitions
- My present invention relates to the general class of crutches, and more specifically to an improved extensible crutch of the sectional, longitudinally adjustable type including a resiliently mounted tip or foot-pad.
- the primary object of the invention is the provision of a strong and durable, light-Weight sectional crutch, that may readily be adjusted with relation to the arm and leg for personal use, and rigidly locked in adjusted position to insure comfort and safety, and to assure facile manipulation by the user.
- Figure 1 is a view in elevation of a crutch in which my invention is embodied.
- Figure 2 is an enlarged detail perspective View of one of the interchangeable lock-pieces, or locking dogs.
- Figure 3 is an enlarged detail vertical sectional view at line 3-3 of Fig. 1 illustrating the resilient mounting of the foot-section and resilient pad.
- Figure 4 is a detail vertical sectional View, on a smaller scale, as at line 4-4 of Fig. 1 disclosing one of the locks between telescoping sections of the crutch.
- Figure 5 is an enlarged, detail transverse horizontal sectional view at line 5-5 of Fig. 4 disclosing the locking position of the lock-piece or dog.
- the sectional crutch is built upwardly and downwardly from a main supporting section that includes an intermediate hand-hold formed as a loop I having an integral cross bar 2 for use as a hand grip.
- a tubular arm-section 5 is telescopically mounted and provided with holes or sockets 6 which .are staggered and longitudinally spaced for use in adjusting or extending the crutch, and an armrest 'I is rigidly mounted upon the arm-section 5.
- the extensible sections of the crutch are rigidly held in adjusted 'position by means of two interchangeable lock-pieces, or dogs, one of which is shown in Fig. 2 with a pin 8 for co-action with sockets 6, and the pin is rigidly mounted on the piece or metal block 9 of arcuate or crescent shape.
- the curved head or block 9 conforms to the shape of the ⁇ cylindrical tubular section on which it is mounted and the pin 8 fits neatly within a selected socket of this section, and against the end of a complementary section.
- One of the lock-pieces is employed in an adjustable joint in the upper portion of the crutch, and a similar lock piece is utilized in another joint in the lower portion of the crutch.
- one of the lock-pieces is enclosed by an open center, knurled, locking nut I0, which encircles the arm-section 5 and is screwed down upon an externally threaded head II of the tubularl section v3 to form a holder or housing for the enclosed lock-piece.
- a tubular, telescoping foot-section I4 is resiliently mounted on the lower end of the leg-section vI2 and fashioned at its lower end with an integral annular exterior flange I5, and a rubber tip or foot-pad I6 having an upper collar I1 is pressed or molded upon the lower open end of the foot-section I4.
- a helical spring I3 which is coiled about the foot-section I 4 is interposed between the lower free end of the leg-section I2 and the upper edge of the collar I'I.
- the resilient movement of the telescoping legsection I2 and the foot-section I4 is limited by co-acting parts of these sections, and for this purpose the leg-section is provided with a pair of longitudinally extending diametrically spaced and opposed slots I9, through which a retaining and guide pin 20 is passed.
- 3 Y of the foot-section I4 Within the leg-section l2 is closed as indicated, thus providing for a pistonaction within the leg-section I2 that stabilizes the resilient movement under weight of the load that is imposed from the upper parts of the crutch.
Description
" NOV. 7, 1950 1- E, OSBORN 2,528,706
EXTENSIBLE CRUTCH Filed Aug. 15, 1946 Z 2&5
*a a Eig-a T 5 l i l, l im l i 2, @i
5 f 5 (P mi l 20 l i2;
gi Eig-4 "P: :.5 I f @i a `IAWENTOR.
Patented Nov. 7, 1950 EXTENSIBLE CRUTCH Y Y George. sborn, Spokane, Wash.
Application August 13, 1946, Serial No. 690,132
e 1 C13/im.
My present invention relates to the general class of crutches, and more specifically to an improved extensible crutch of the sectional, longitudinally adjustable type including a resiliently mounted tip or foot-pad. The primary object of the invention is the provision of a strong and durable, light-Weight sectional crutch, that may readily be adjusted with relation to the arm and leg for personal use, and rigidly locked in adjusted position to insure comfort and safety, and to assure facile manipulation by the user.
In the physical embodiment of my invention I utilize a minimum number of component parts that may readily be manufactured at low cost of production; some of the parts are interchangeable; and they may be assembled with facility and accurately adjusted without necessity for skilled labor. Y
The invention consists in certain novel combinations and arrangements of these parts as hereinafter described and more particularly set forth in the appended claim.
In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention wherein the parts are combined and arranged in accord with one inode I have devised for the practical application of the principles of my invention. It will be understood that changes and alternations are contemplated and may be made in these exemplifying drawings and mechanical structures, Within the scope of my claim without departing from the principles of the invention.
Figure 1 is a view in elevation of a crutch in which my invention is embodied.
Figure 2 is an enlarged detail perspective View of one of the interchangeable lock-pieces, or locking dogs.
Figure 3 is an enlarged detail vertical sectional view at line 3-3 of Fig. 1 illustrating the resilient mounting of the foot-section and resilient pad.
Figure 4 is a detail vertical sectional View, on a smaller scale, as at line 4-4 of Fig. 1 disclosing one of the locks between telescoping sections of the crutch.
Figure 5 is an enlarged, detail transverse horizontal sectional view at line 5-5 of Fig. 4 disclosing the locking position of the lock-piece or dog.
In carrying out my invention the sectional crutch is built upwardly and downwardly from a main supporting section that includes an intermediate hand-hold formed as a loop I having an integral cross bar 2 for use as a hand grip.
'I'he sections of the crutch are fashioned of light but strong metal, and the main, hand-hold, section is formed with an integral upper tube 3, and a lower tubular end 4.
In the upper tubular end 3 of the main-section a tubular arm-section 5 is telescopically mounted and provided with holes or sockets 6 which .are staggered and longitudinally spaced for use in adjusting or extending the crutch, and an armrest 'I is rigidly mounted upon the arm-section 5.
The extensible sections of the crutch are rigidly held in adjusted 'position by means of two interchangeable lock-pieces, or dogs, one of which is shown in Fig. 2 with a pin 8 for co-action with sockets 6, and the pin is rigidly mounted on the piece or metal block 9 of arcuate or crescent shape. The curved head or block 9 conforms to the shape of the `cylindrical tubular section on which it is mounted and the pin 8 fits neatly within a selected socket of this section, and against the end of a complementary section.
One of the lock-pieces is employed in an adjustable joint in the upper portion of the crutch, and a similar lock piece is utilized in another joint in the lower portion of the crutch.
As best seen in Fig. 4 one of the lock-pieces is enclosed by an open center, knurled, locking nut I0, which encircles the arm-section 5 and is screwed down upon an externally threaded head II of the tubularl section v3 to form a holder or housing for the enclosed lock-piece.
An alined leg-section I2 of tubular cylindrical shape, which telescopes within the lower end 4 of the main tubular section is also locked to the main section by means of a similar lock-piece 8 9, and a lock nut I3 rigidly unites these jointed parts.
A tubular, telescoping foot-section I4 is resiliently mounted on the lower end of the leg-section vI2 and fashioned at its lower end with an integral annular exterior flange I5, and a rubber tip or foot-pad I6 having an upper collar I1 is pressed or molded upon the lower open end of the foot-section I4.
For resiliently supporting the crutch, a helical spring I3 which is coiled about the foot-section I 4 is interposed between the lower free end of the leg-section I2 and the upper edge of the collar I'I.
The resilient movement of the telescoping legsection I2 and the foot-section I4 is limited by co-acting parts of these sections, and for this purpose the leg-section is provided with a pair of longitudinally extending diametrically spaced and opposed slots I9, through which a retaining and guide pin 20 is passed. The upper end 2| 3 Y of the foot-section I4 Within the leg-section l2 is closed as indicated, thus providing for a pistonaction within the leg-section I2 that stabilizes the resilient movement under weight of the load that is imposed from the upper parts of the crutch.
Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is: V
l In an extensible crutch, the combination with a main section, atelescoping tubular Yleg-section, and means for locking these sections in adjusted position, of a tubular foot-section having a pair of opposed slots and telescoping the leg-section, a transversely arranged retaining pin mounted in the leg-section and passed through the slots,- a pad on the foot section,sand a, spring `coiled about the foot section and interposed between the pad and the upper end of the leg-section. Y GEORGE E. OSBORN.
5 REFERENCES CITED n The following references arev of record in the file of this patent:
UNITED STATES PATENTS 10 Number Name "-,Date @834,205 Y Jones r. Oct. 23, 1906 1,630,032 Rood May 24, 1927 1,733,430 Shahvan Oct. 29, 1929 Y 2,116,730` Menton May V10, 1938 135` 2,373,0415r Osborn Apr. 3, 1945 McGowan Apr. 2, 1946
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US690132A US2528706A (en) | 1946-08-13 | 1946-08-13 | Extensible crutch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US690132A US2528706A (en) | 1946-08-13 | 1946-08-13 | Extensible crutch |
Publications (1)
Publication Number | Publication Date |
---|---|
US2528706A true US2528706A (en) | 1950-11-07 |
Family
ID=24771223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US690132A Expired - Lifetime US2528706A (en) | 1946-08-13 | 1946-08-13 | Extensible crutch |
Country Status (1)
Country | Link |
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US (1) | US2528706A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2614332A (en) * | 1951-04-25 | 1952-10-21 | Lucian J Zadrozny | Crutch gauge |
US2787484A (en) * | 1953-11-27 | 1957-04-02 | South Bend Tackle Company Inc | Sectional fishing rod |
US3158162A (en) * | 1962-05-09 | 1964-11-24 | Roy C Reel | Blind man's walking cane |
US4071243A (en) * | 1976-06-30 | 1978-01-31 | Lee Fink | Stilt structure |
US4846203A (en) * | 1985-06-19 | 1989-07-11 | Luconex, Inc. | Stowable crutch |
US4917126A (en) * | 1985-06-19 | 1990-04-17 | Children's Hospital | Stowable crutch |
US5281063A (en) * | 1992-02-04 | 1994-01-25 | Austin Iii Ralph J | Cargo bar lock assembly |
WO1998042292A1 (en) | 1997-03-24 | 1998-10-01 | Lifelynx Inc. | Shock absorbing ambulatory assist device |
US5904167A (en) * | 1997-09-02 | 1999-05-18 | Moye; John F. | One legged two handed walking device |
US20110005559A1 (en) * | 2007-07-02 | 2011-01-13 | Jesse Daily | Crutch Assembly |
US20110073146A1 (en) * | 2009-09-28 | 2011-03-31 | Stander Inc. | Removable shock absorbing tip for a walking aid |
US20120067385A1 (en) * | 2010-05-07 | 2012-03-22 | Senatro Clement A | Cane and Method of Use |
US20120211036A1 (en) * | 2010-08-23 | 2012-08-23 | Omhu, Inc. | Cushioning Foot for Cane, Crutch, or Walking Aid |
US8479755B2 (en) * | 2011-11-18 | 2013-07-09 | Gentry Way Co., Ltd. | Ambulatory aid |
US20150013735A1 (en) * | 2013-07-10 | 2015-01-15 | Ching-Ming Lin | Adjustable cane with memory function |
US9516933B2 (en) | 2014-09-02 | 2016-12-13 | Charlene E. Woodall | Shock absorber cane systems |
US11027410B2 (en) * | 2019-08-27 | 2021-06-08 | Erik P. Barnaal | Ergonomic lateral manual sweeping device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US834205A (en) * | 1906-05-29 | 1906-10-23 | E X Jones | Crutch. |
US1630032A (en) * | 1926-06-29 | 1927-05-24 | Charles F Rood | Doorknob |
US1733430A (en) * | 1927-10-17 | 1929-10-29 | John L Shahan | Crutch |
US2116730A (en) * | 1936-06-12 | 1938-05-10 | Ernest L Menton | Crutch |
US2373045A (en) * | 1944-08-22 | 1945-04-03 | George E Osborn | Crutch |
US2397499A (en) * | 1945-03-17 | 1946-04-02 | Henri C Mcgowan | Crutch tip construction |
-
1946
- 1946-08-13 US US690132A patent/US2528706A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US834205A (en) * | 1906-05-29 | 1906-10-23 | E X Jones | Crutch. |
US1630032A (en) * | 1926-06-29 | 1927-05-24 | Charles F Rood | Doorknob |
US1733430A (en) * | 1927-10-17 | 1929-10-29 | John L Shahan | Crutch |
US2116730A (en) * | 1936-06-12 | 1938-05-10 | Ernest L Menton | Crutch |
US2373045A (en) * | 1944-08-22 | 1945-04-03 | George E Osborn | Crutch |
US2397499A (en) * | 1945-03-17 | 1946-04-02 | Henri C Mcgowan | Crutch tip construction |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2614332A (en) * | 1951-04-25 | 1952-10-21 | Lucian J Zadrozny | Crutch gauge |
US2787484A (en) * | 1953-11-27 | 1957-04-02 | South Bend Tackle Company Inc | Sectional fishing rod |
US3158162A (en) * | 1962-05-09 | 1964-11-24 | Roy C Reel | Blind man's walking cane |
US4071243A (en) * | 1976-06-30 | 1978-01-31 | Lee Fink | Stilt structure |
US4846203A (en) * | 1985-06-19 | 1989-07-11 | Luconex, Inc. | Stowable crutch |
US4917126A (en) * | 1985-06-19 | 1990-04-17 | Children's Hospital | Stowable crutch |
US5281063A (en) * | 1992-02-04 | 1994-01-25 | Austin Iii Ralph J | Cargo bar lock assembly |
WO1998042292A1 (en) | 1997-03-24 | 1998-10-01 | Lifelynx Inc. | Shock absorbing ambulatory assist device |
US5904167A (en) * | 1997-09-02 | 1999-05-18 | Moye; John F. | One legged two handed walking device |
US8166990B2 (en) | 2007-07-02 | 2012-05-01 | Core Consulting, Llc | Crutch assembly |
US9326572B2 (en) | 2007-07-02 | 2016-05-03 | Core Consulting, Llc | Crutch assembly |
US20110005559A1 (en) * | 2007-07-02 | 2011-01-13 | Jesse Daily | Crutch Assembly |
US8596288B2 (en) | 2007-07-02 | 2013-12-03 | Core Consulting, Llc | Crutch assembly |
US20110073146A1 (en) * | 2009-09-28 | 2011-03-31 | Stander Inc. | Removable shock absorbing tip for a walking aid |
US20120067385A1 (en) * | 2010-05-07 | 2012-03-22 | Senatro Clement A | Cane and Method of Use |
US20120211036A1 (en) * | 2010-08-23 | 2012-08-23 | Omhu, Inc. | Cushioning Foot for Cane, Crutch, or Walking Aid |
US8479755B2 (en) * | 2011-11-18 | 2013-07-09 | Gentry Way Co., Ltd. | Ambulatory aid |
US20150013735A1 (en) * | 2013-07-10 | 2015-01-15 | Ching-Ming Lin | Adjustable cane with memory function |
US9192213B2 (en) * | 2013-07-10 | 2015-11-24 | Footwear & Recreation Technology Research Institute | Adjustable cane with memory function |
US9516933B2 (en) | 2014-09-02 | 2016-12-13 | Charlene E. Woodall | Shock absorber cane systems |
US11027410B2 (en) * | 2019-08-27 | 2021-06-08 | Erik P. Barnaal | Ergonomic lateral manual sweeping device |
US20210291347A1 (en) * | 2019-08-27 | 2021-09-23 | Erik P. Barnaal | Ergonomic lateral manual sweeping device |
EP4021244A4 (en) * | 2019-08-27 | 2022-10-19 | Barnaal, Erik | Ergonomic lateral manual sweeping device |
US11731257B2 (en) * | 2019-08-27 | 2023-08-22 | Erik P. Barnaal | Ergonomic lateral manual sweeping device |
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