WO2013138912A1 - Torque limiting clutch for orthotic and prosthetic devices - Google Patents
Torque limiting clutch for orthotic and prosthetic devices Download PDFInfo
- Publication number
- WO2013138912A1 WO2013138912A1 PCT/CA2013/000268 CA2013000268W WO2013138912A1 WO 2013138912 A1 WO2013138912 A1 WO 2013138912A1 CA 2013000268 W CA2013000268 W CA 2013000268W WO 2013138912 A1 WO2013138912 A1 WO 2013138912A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- band
- brake pad
- torque
- cam
- transfer output
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/604—Joints for artificial legs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2/70—Operating or control means electrical
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J17/00—Joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/06—Safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/10—Programme-controlled manipulators characterised by positioning means for manipulator elements
- B25J9/12—Programme-controlled manipulators characterised by positioning means for manipulator elements electric
- B25J9/126—Rotary actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
- F16D49/08—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as an encircling band extending over approximately 360 degrees
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/06—Bands, shoes or pads; Pivots or supporting members therefor for externally-engaging brakes
- F16D65/065—Brake bands
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H35/00—Gearings or mechanisms with other special functional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5016—Prostheses not implantable in the body adjustable
- A61F2002/503—Prostheses not implantable in the body adjustable for adjusting elasticity, flexibility, spring rate or mechanical tension
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2002/6818—Operating or control means for braking
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2002/6845—Clutches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2002/6863—Operating or control means magnetic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2/70—Operating or control means electrical
- A61F2002/701—Operating or control means electrical operated by electrically controlled means, e.g. solenoids or torque motors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/76—Means for assembling, fitting or testing prostheses, e.g. for measuring or balancing, e.g. alignment means
- A61F2002/7615—Measuring means
- A61F2002/7645—Measuring means for measuring torque, e.g. hinge or turning moment, moment of force
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F2005/0132—Additional features of the articulation
- A61F2005/0158—Additional features of the articulation with locking means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F2005/0132—Additional features of the articulation
- A61F2005/0165—Additional features of the articulation with limits of movement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F2005/0132—Additional features of the articulation
- A61F2005/0169—Additional features of the articulation with damping means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0073—Force-limiting means
- A61F2250/0074—Torque-limiting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
- F16D2125/28—Cams; Levers with cams
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S901/00—Robots
- Y10S901/19—Drive system for arm
- Y10S901/23—Electric motor
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S901/00—Robots
- Y10S901/27—Arm part
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S901/00—Robots
- Y10S901/46—Sensing device
-
- 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
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2186—Gear casings
Definitions
- the present disclosure relates to a torque limiting clutch for orthotic and prosthetic devices.
- Rotating systems can have enough rotating energy (i.e. inertia) to cause significant machine damage during a jam-up or system crash.
- This inertia varies based on the RPM and rotating mass for each application.
- a high mass low speed application could do more damage than a low mass high speed one during a crash.
- a torque limiter which is basically a mechanical fuse, is used to shut down the machine and allow the rotating energy to dissipate without causing excessive damage.
- the present disclosure provides a torque limiting assembly for use with an actuator having a torque transfer output, the assembly comprising:
- brake pad and the band are configured to wrap around the torque transfer output and whereby the positioning of the cam in a first position frictionally engages the brake pad and the band with the torque transfer output, and positioning of the cam in a second position disengages the brake pad and the band with the torque transfer output.
- a torque limiting assembly as described above, further comprising a tension adjustment mechanism connecting the first extremity of the band to the first extremity of the brake pad, wherein the tension adjustment mechanism is configured so as to augment or diminish the frictional engagement of the brake pad and the band with the torque transfer output when the cam is in the first position.
- a torque limiting assembly as described above, further comprising a liner positioned on a surface of the band and/or the brake pad that is in frictional engagement with the torque transfer output when the cam is in the first position, in one or more embodiments the liner is made of a material having a high friction coefficient and/or wear resistant and/or compressible.
- the cam is composed of two eccentric baring surfaces off center with regard to one another.
- actuated orthothic device comprising:
- a proximal and a distal brace structures for attachment to a limb of a user
- an actuator operatively connecting the proximal and the distal brace structures, the actuator including a torque transfer output connected to one of the proximal and the distal brace structures to impart movement to the limb of the user;
- a torque limiting assembly as described above, positioned around the torque transfer output, the torque limiting assembly limiting the maximum force exerted on the user.
- FIG. 1 is a cross-sectional view of the torque limiting clutch in accordance with an illustrative embodiment of the present disclosure
- FIG. 2 is an exploded view of the torque limiting clutch
- FIG. 3 is a cross-sectional view of the lever and cam of the torque limiting clutch
- FIG. 4 is a side view of an actuated orthotic device integrating the torque limiting clutch
- FIG. 5 is an exploded perspective view of the actuator of the actuated orthotic device of FIG. 4.
- FIG. 6 is a conceptual representation of the torque limiting clutch for the computation of its braking force and the stress in its various components.
- the non-limitative illustrative embodiment of the present disclosure provides a torque limiting clutch consisting in a band brake mechanism for an actuator that starts slipping when the torque is higher than a preset torque.
- the torque limiting clutch serves to:
- ⁇ protect the actuator from inertial loads when the actuator is hitting a travel extension limit (hard stop) at high speed. In this case extreme loads can occur if the kinetic energy is not dissipated somewhere;
- ⁇ protect the environment from high forces that could be exerted by the actuator.
- Another feature of the torque limiting clutch is to allow manual disengagement of the actuator in case of malfunction of the actuator or power failure.
- the torque limiting clutch 10 consists of a band 12 that is wrapped partly around an actuator torque transfer output, which in the illustrative embodiment is a rotating drum 14, and a brake pad 24. It is to be understood that the torque transfer output could be another rotating mechanism such as, for example, a rotating shaft. Tension can be applied to the band 12 using, for example, a lever 16 attached to a cam 18 linking the band 12 to a first extremity of the brake pad 24. It is to be understood that mechanisms other than a lever 16 may be used to operate the cam 18.
- the tension can be adjusted using a tension adjustment mechanism here in the form of a screw 20 operatively connecting the band 12 to a second extremity of the brake pad 24, wherein rotation of the crew 20 in a first direction pulls the band 12 into a cavity 25 within the brake pad 24, therefore augmenting the frictional engagement of the brake pad 24 and the band 12 with the rotary drum 14 rotation the opposed direction allows the band 12 to pull out of the cavity 25, therefore diminishing the frictional engagement of the brake pad 24 and the band 12 with the rotary drum 14.
- a liner 22, for example made of a high friction material, serves as a friction surface.
- the liner 22 is advantageously wear resistant and somewhat soft or compressible in order to "encapsulate" any dirt or particles that may be trapped between the band 12, the brake pad 24 and the rotating drum 14.
- the band 12, the brake pad 24 and the rotating drum 14 are advantageously made from the same material, for example Alu 7075-T6, to ensure that the braking force does not change significantly when the temperature fluctuates due to, for example, thermal expansion.
- the rotating drum 14 may be, for example, hard anodized (i.e. type II, 50 pm) for wear resistance.
- the torque limiting clutch 10 can be disengaged, for example by lifting in direction "L" the lever 16 (see FIG. 3), positioning the cam (18) in a position that allows for completely free motion of the rotating drum 14.
- the torque limiting clutch 10 can be disengaged in case of, for example, malfunction or power failure.
- the cam 8 provides the tension in the band 12 when the lever 16 is engaged.
- the cam 18 is designed with two eccentric bearing surfaces 18a and 18b (best seen in FIGS. 2 and 3) that are off center with regard to one another. After assembly, the lever 16 is advantageously micro-welded onto the cam 18 thus making them unitary.
- the tension adjustment mechanism i.e. screw 20, is used to adjust the band 12 tension in order to get the desired braking torque.
- FIGS. 4 and 5 there is shown an illustrative example of the torque limiting clutch 10 integrated with an actuated orthotic device 30 having proximal 32 and distal 34 brace structures for attachment to the limb of a user.
- the proximal 32 and distal 34 brace structures are operatively linked together via an actuator 36 designed to impart movement to the limb of the user.
- the torque limiting clutch 0 is located inside the housing of the actuator 36 and ensures that the actuator 36, as well as the other components of the orthotic device 30 (i.e. brace structures 32 and 34, torque sensor 38, etc.) are not damaged by external shocks, such as when the user lands after a jump, or when the orthotic device 30 reaches its extension limit.
- the torque limiting clutch 10 limits the maximum force exerted on the user, thus reducing the risk of injury in the event of shocks.
- the actuator 36 comprises a housing assembly
- the torque limiting clutch 10 further comprises an angle sensor magnet 26 mounted on a shaft 28 supported by the brake pad 24.
- the brake pad 24 being configured to be connected to the distal brace structure 34, the angle sensor magnet 26 and the angle sensor 56 cooperate together in order to provide a measure of the angle between the proximal 32 and distal 34 brace structures.
- FIG. 6 there is shown a conceptual representation for the computation of the braking force of the torque limiting clutch 10 and the stress in its various components for the above described illustrative example.
- Equation 1 illustrates the relation between band 12 tensions, coefficient of friction of the liner 22 and wrapping angle:
- Tf and T 2 are the tension forces
- ⁇ is the friction coefficient of the liner 22
- ⁇ is the wrapped angle of the band 12.
- the desired braking torque capability is established at 75 Nm, although the desired braking force is of 50 Nm.
- the brake pad 24 to which is attached the band 12 also provides a braking force.
- the total force applied on the brake pad 24 being roughly ⁇ ,+ ⁇ 2 , we find the total braking torque to be:
- Torque ( ⁇ 2 - ⁇ ) % + ⁇ ( ⁇ 2 + T t )x % Equation 2
- the cam 18 is designed with two eccentric bearing surfaces 18a and 18b (best seen in FIGS. 2 and 3) that are off center by 0.5 mm.
- the stress level in the band 12 area is of about 200 MPa, while the stress in the cam 18 area is up to about 315 MPa. Considering that the band 12 is not submitted to a large amount of cycles, this stress level is considered acceptable. Assuming the maximum stress to be 350 MPa and the minimum stress to be O Pa, it can be estimated that the band 12 can resist at least 50 K engaging/disengaging cycles.
- the average pressure on the liner 22 is found to be of about 16 MPa (with the band 12 width being of 8 mm). This pressure level is acceptable for the use of, for example, Acetal plastic which has a limit of 70 MPa.
- the tension stress in the adjustment screw 20 is computed at 580 MPa.
- the stress level in the adjustment screw 20 being important, a screw with a grade of at least 8.8 is recommended.
- torque limiting clutch 10 may be adapted for applications other than orthotic and prosthetic devices without departing from the scope of the present disclosure.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Nursing (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Robotics (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Retarders (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2907579A CA2907579C (en) | 2012-03-21 | 2013-03-21 | Torque limiting clutch for orthotic and prosthetic devices |
ES13763463.0T ES2624634T3 (en) | 2012-03-21 | 2013-03-21 | Torque limitation clutch for orthotic and prosthetic devices |
US14/387,218 US9534647B2 (en) | 2012-03-21 | 2013-03-21 | Torque limiting clutch for orthotic and prosthetic devices |
EP13763463.0A EP2836735B1 (en) | 2012-03-21 | 2013-03-21 | Torque limiting clutch for orthotic and prosthetic devices |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261613678P | 2012-03-21 | 2012-03-21 | |
US61/613,678 | 2012-03-21 | ||
US201261642031P | 2012-05-03 | 2012-05-03 | |
US61/642,031 | 2012-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013138912A1 true WO2013138912A1 (en) | 2013-09-26 |
Family
ID=49221748
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2013/000268 WO2013138912A1 (en) | 2012-03-21 | 2013-03-21 | Torque limiting clutch for orthotic and prosthetic devices |
PCT/CA2013/000269 WO2013138913A1 (en) | 2012-03-21 | 2013-03-21 | High density actuator having a harmonic drive and a torque limiting assembly |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2013/000269 WO2013138913A1 (en) | 2012-03-21 | 2013-03-21 | High density actuator having a harmonic drive and a torque limiting assembly |
Country Status (6)
Country | Link |
---|---|
US (1) | US9532894B2 (en) |
EP (2) | EP2836735B1 (en) |
CA (2) | CA2907579C (en) |
ES (2) | ES2624634T3 (en) |
FI (1) | FI2828043T3 (en) |
WO (2) | WO2013138912A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014006291B3 (en) * | 2014-04-26 | 2015-09-03 | Audi Ag | rotary damper |
WO2017012626A1 (en) * | 2015-07-21 | 2017-01-26 | Kr 2013 Aps | Joint assembly |
WO2017186843A1 (en) * | 2016-04-27 | 2017-11-02 | Ovalo Gmbh | Motorized joint for a programmable automatic moving unit |
WO2017186847A1 (en) * | 2016-04-27 | 2017-11-02 | Ovalo Gmbh | Motorized joint for a programmable automated moving device |
WO2017186844A1 (en) * | 2016-04-27 | 2017-11-02 | Ovalo Gmbh | Motorized articulation for a programmable motion automaton |
WO2017186845A1 (en) * | 2016-04-27 | 2017-11-02 | Ovalo Gmbh | Motorized joint for a programmable moving machine |
US9956840B2 (en) | 2014-03-05 | 2018-05-01 | Audi Ag | Electromechanical rotational damper with tension and compression stop |
US11351042B2 (en) | 2012-08-12 | 2022-06-07 | 5Th Element Limited | Automated hand |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2858607B1 (en) * | 2012-06-08 | 2016-07-20 | Ossur Hf | Orthopedic device and components thereof |
CN104068456B (en) * | 2014-07-02 | 2016-08-24 | 江苏牧羊控股有限公司 | A kind of granule storehouse and the attachment means of gear-box |
EP3188695A4 (en) * | 2014-09-05 | 2018-05-30 | Ekso Bionics, Inc. | Exoskeleton device and method of impeding relative movement in the exoskeleton device |
US10085870B2 (en) * | 2015-06-22 | 2018-10-02 | Horsepower Technologies Inc. | Joint brace with improved range of motion stop |
WO2017105996A1 (en) * | 2015-12-14 | 2017-06-22 | Board Of Regents, The University Of Texas System | Torque control methods and devices for powered orthosis |
US11076971B2 (en) * | 2016-06-07 | 2021-08-03 | Sony Corporation | Actuator and artificial leg |
KR101793141B1 (en) * | 2016-06-10 | 2017-11-03 | 한국기계연구원 | Joint driving module and compliant type robot artificial ankle |
US10337561B2 (en) | 2016-12-15 | 2019-07-02 | Boston Dynamics, Inc. | Transmission with integrated overload protection for a legged robot |
US20210085551A1 (en) * | 2017-05-11 | 2021-03-25 | Board Of Regents, The University Of Texas System | Powered orthosis with combined motor and gear technology |
DE102017120463B4 (en) * | 2017-09-06 | 2019-04-25 | Otto Bock Healthcare Products Gmbh | Orthopedic device |
WO2020024241A1 (en) * | 2018-08-03 | 2020-02-06 | 深圳市肯綮科技有限公司 | Tension cable power apparatus and power system thereof and power assist device and control method thereof |
DE102018126324A1 (en) * | 2018-10-23 | 2020-04-23 | Otto Bock Healthcare Products Gmbh | Orthopedic joint and orthopedic device |
CN109278038B (en) * | 2018-10-31 | 2020-09-29 | 深圳市优必选科技有限公司 | Steering wheel and robot |
CN110966325B (en) * | 2019-11-27 | 2021-06-18 | 无锡翼友机车科技有限公司 | Electric bicycle and electric motorcycle drum brake structure with surface contact brake |
USD946770S1 (en) * | 2020-09-29 | 2022-03-22 | ManaMed Inc. | Medical device |
USD962451S1 (en) * | 2020-12-05 | 2022-08-30 | Vision Quest Industries Incorporated | Orthopedic device with multiple Q-angle adjusters |
USD972153S1 (en) * | 2020-12-09 | 2022-12-06 | Parker-Hannifin Corporation | Movement assistance device for an orthosis |
WO2023150893A1 (en) * | 2022-02-14 | 2023-08-17 | B-Temia Inc. | High-density actuator with in-motor transmission |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB416341A (en) * | 1934-03-05 | 1934-09-11 | J E Hanger & Company Ltd | Improvements in or relating to knee joints for artificial limbs |
US2489291A (en) * | 1948-07-09 | 1949-11-29 | Ulrich K Henschke | Leg prosthesis |
GB672916A (en) * | 1949-05-02 | 1952-05-28 | J E Hanger And Company Ltd | Improvements in or relating to artificial legs |
US3694823A (en) * | 1970-06-25 | 1972-10-03 | Hanger & Co Ltd J E | Knee joints for artificial legs |
WO2008008032A1 (en) * | 2006-07-11 | 2008-01-17 | Mölnlycke Health Care Ab | Irrigation dressing and method of applying such an irrigating dressing |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2537351A (en) * | 1948-08-05 | 1951-01-09 | Northrop Aircraft Inc | Hydraulically operated mechanical knee lock |
US3723997A (en) * | 1971-04-30 | 1973-04-03 | Us Mfg Co | Prosthetic leg with weight responsive knee lock |
US3982279A (en) * | 1975-03-06 | 1976-09-28 | Mario Capella Valenti | Mechanical prosthesis of the knee |
GB0616162D0 (en) * | 2006-08-15 | 2006-09-20 | Whiteley Graham | Compact rotary actuator |
EP2104476B1 (en) * | 2007-01-05 | 2016-01-06 | Victhom Human Bionics Inc. | High torque active mechanism for orthotic devices |
US8435309B2 (en) * | 2007-01-05 | 2013-05-07 | Victhom Human Bionics | Joint actuation mechanism for a prosthetic and/or orthotic device having a compliant transmission |
US8449624B2 (en) * | 2007-02-06 | 2013-05-28 | Deka Products Limited Partnership | Arm prosthetic device |
WO2011005482A2 (en) * | 2009-06-22 | 2011-01-13 | University Of Washington | Controllable transverse rotation adaptor |
-
2013
- 2013-03-21 EP EP13763463.0A patent/EP2836735B1/en active Active
- 2013-03-21 US US14/387,220 patent/US9532894B2/en active Active
- 2013-03-21 ES ES13763463.0T patent/ES2624634T3/en active Active
- 2013-03-21 FI FIEP13764476.1T patent/FI2828043T3/en active
- 2013-03-21 EP EP13764476.1A patent/EP2828043B1/en active Active
- 2013-03-21 CA CA2907579A patent/CA2907579C/en active Active
- 2013-03-21 CA CA2907581A patent/CA2907581C/en active Active
- 2013-03-21 ES ES13764476T patent/ES2968150T3/en active Active
- 2013-03-21 WO PCT/CA2013/000268 patent/WO2013138912A1/en active Application Filing
- 2013-03-21 WO PCT/CA2013/000269 patent/WO2013138913A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB416341A (en) * | 1934-03-05 | 1934-09-11 | J E Hanger & Company Ltd | Improvements in or relating to knee joints for artificial limbs |
US2489291A (en) * | 1948-07-09 | 1949-11-29 | Ulrich K Henschke | Leg prosthesis |
GB672916A (en) * | 1949-05-02 | 1952-05-28 | J E Hanger And Company Ltd | Improvements in or relating to artificial legs |
US3694823A (en) * | 1970-06-25 | 1972-10-03 | Hanger & Co Ltd J E | Knee joints for artificial legs |
WO2008008032A1 (en) * | 2006-07-11 | 2008-01-17 | Mölnlycke Health Care Ab | Irrigation dressing and method of applying such an irrigating dressing |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11351042B2 (en) | 2012-08-12 | 2022-06-07 | 5Th Element Limited | Automated hand |
US9956840B2 (en) | 2014-03-05 | 2018-05-01 | Audi Ag | Electromechanical rotational damper with tension and compression stop |
DE102014006291B3 (en) * | 2014-04-26 | 2015-09-03 | Audi Ag | rotary damper |
EP2949491A1 (en) | 2014-04-26 | 2015-12-02 | Audi Ag | Rotary damper |
US9539873B2 (en) | 2014-04-26 | 2017-01-10 | Audi Ag | Rotary damper |
WO2017012626A1 (en) * | 2015-07-21 | 2017-01-26 | Kr 2013 Aps | Joint assembly |
US11850736B2 (en) | 2015-07-21 | 2023-12-26 | Kassow Robots Aps | Joint assembly |
US10919159B2 (en) | 2015-07-21 | 2021-02-16 | Kassow Robots Aps | Joint assembly |
CN108136575A (en) * | 2015-07-21 | 2018-06-08 | Kr2013有限公司 | Joint assembly |
LU93043B1 (en) * | 2016-04-27 | 2017-11-07 | Ovalo Gmbh | Motorized joint for a programmable motion machine |
LU93046B1 (en) * | 2016-04-27 | 2017-11-07 | Ovalo Gmbh | Motorized joint for a programmable motion machine |
LU93044B1 (en) * | 2016-04-27 | 2017-11-07 | Ovalo Gmbh | Motorized joint for a programmable motion machine |
LU93045B1 (en) * | 2016-04-27 | 2017-11-07 | Ovalo Gmbh | Motorized joint for a programmable motion machine |
WO2017186845A1 (en) * | 2016-04-27 | 2017-11-02 | Ovalo Gmbh | Motorized joint for a programmable moving machine |
CN109070362A (en) * | 2016-04-27 | 2018-12-21 | 奥维罗有限责任公司 | For the programmable motor-driven movable joint for automatically moving machine |
CN109153132A (en) * | 2016-04-27 | 2019-01-04 | 奥维罗有限责任公司 | For the programmable motor-driven movable joint for automatically moving machine |
WO2017186844A1 (en) * | 2016-04-27 | 2017-11-02 | Ovalo Gmbh | Motorized articulation for a programmable motion automaton |
CN109070362B (en) * | 2016-04-27 | 2021-09-17 | 奥维罗有限责任公司 | Motorized joint for programmable automatic moving machine |
WO2017186847A1 (en) * | 2016-04-27 | 2017-11-02 | Ovalo Gmbh | Motorized joint for a programmable automated moving device |
WO2017186843A1 (en) * | 2016-04-27 | 2017-11-02 | Ovalo Gmbh | Motorized joint for a programmable automatic moving unit |
Also Published As
Publication number | Publication date |
---|---|
CA2907581A1 (en) | 2013-09-26 |
CA2907581C (en) | 2021-10-19 |
CA2907579A1 (en) | 2013-09-26 |
EP2828043A1 (en) | 2015-01-28 |
ES2968150T3 (en) | 2024-05-08 |
EP2836735A1 (en) | 2015-02-18 |
EP2836735B1 (en) | 2017-02-01 |
CA2907579C (en) | 2020-09-22 |
EP2828043A4 (en) | 2015-12-16 |
US9532894B2 (en) | 2017-01-03 |
US20150051528A1 (en) | 2015-02-19 |
EP2836735A4 (en) | 2016-07-20 |
EP2828043B1 (en) | 2023-10-18 |
WO2013138913A1 (en) | 2013-09-26 |
ES2624634T3 (en) | 2017-07-17 |
FI2828043T3 (en) | 2024-01-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2907579C (en) | Torque limiting clutch for orthotic and prosthetic devices | |
CN107035837B (en) | Motor driving device with torque protection and anti-lock device | |
US8840507B2 (en) | Dual redundant linear EMA with hard stop compliant driveline | |
CN109790908B (en) | Overload protection device | |
US6561333B2 (en) | Spring clutch utilizing torque slip clips | |
US9534647B2 (en) | Torque limiting clutch for orthotic and prosthetic devices | |
EP2780609A1 (en) | Limiting torque clutch in an input damper | |
US8262531B2 (en) | Actuator with differential and brake | |
EP2889504A1 (en) | Irreversible mechanism | |
JP2020153423A (en) | Rotational inertia device | |
JP2005009565A (en) | Vibration damping apparatus | |
EP1236920A1 (en) | Torque limiter | |
JP2020511109A (en) | Electromechanical storm brake actuator | |
KR102341958B1 (en) | Torque limiter with overspeed protection | |
CN114396442B (en) | Braking device, power assembly and equipment | |
US11828343B2 (en) | Tooth driven over-torque protection mechanism for a slack adjuster or an air disc brake clutch | |
CN201184381Y (en) | Clutch with temperature control protecting device | |
KR101325192B1 (en) | Variable pulley | |
KR101058569B1 (en) | Clutch strap buckling prevention structure | |
KR100822762B1 (en) | Friction clutch | |
TW201610319A (en) | Torque releasing device with a centrifugal force adjusting function | |
JP2005214284A (en) | Winding machine | |
JP2015194205A (en) | Torque limiter | |
EP2817532A1 (en) | Damping pulley for bi-directional torque transfer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13763463 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14387218 Country of ref document: US |
|
REEP | Request for entry into the european phase |
Ref document number: 2013763463 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013763463 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2907579 Country of ref document: CA |