WO2020137402A1 - 弾性支持装置 - Google Patents
弾性支持装置 Download PDFInfo
- Publication number
- WO2020137402A1 WO2020137402A1 PCT/JP2019/047451 JP2019047451W WO2020137402A1 WO 2020137402 A1 WO2020137402 A1 WO 2020137402A1 JP 2019047451 W JP2019047451 W JP 2019047451W WO 2020137402 A1 WO2020137402 A1 WO 2020137402A1
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- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- original position
- external force
- elastic support
- support device
- Prior art date
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Classifications
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
- F16F6/005—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid using permanent magnets only
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- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22B—SLAUGHTERING
- A22B5/00—Accessories for use during or after slaughtering
- A22B5/0017—Apparatus for cutting, dividing or deboning carcasses
- A22B5/0035—Deboning or obtaining boneless pieces of meat from a carcass
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- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C17/00—Other devices for processing meat or bones
- A22C17/004—Devices for deboning meat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
- B25J11/005—Manipulators for mechanical processing tasks
- B25J11/0055—Cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J17/00—Joints
- B25J17/02—Wrist joints
- B25J17/0208—Compliance devices
- B25J17/0233—Compliance devices with radial compliance, i.e. perpendicular to the longitudinal wrist axis
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- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22B—SLAUGHTERING
- A22B5/00—Accessories for use during or after slaughtering
- A22B5/0017—Apparatus for cutting, dividing or deboning carcasses
- A22B5/0041—Electronic, robotic or computer assisted cutting, dividing or deboning carcasses
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C17/00—Other devices for processing meat or bones
- A22C17/0006—Cutting or shaping meat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
- B25J11/0045—Manipulators used in the food industry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/0019—End effectors other than grippers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J17/00—Joints
- B25J17/02—Wrist joints
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2232/00—Nature of movement
- F16F2232/02—Rotary
Definitions
- the present disclosure relates to elastic support devices.
- Patent Document 1 discloses that in a cutter mechanism that cuts meat with bones of a livestock carcass for meat to separate the bones from the meat, the knife is elastically supported by a compression spring or the like to enable the above function. There is.
- the compliance function is made possible by using power such as air cylinder, hydraulic cylinder, motor, etc., or by means such as compression springs and weights that do not use external power as in Patent Document 1.
- power such as air cylinder, hydraulic cylinder, motor, etc.
- these means have many contact parts such as sliding parts, and power is wasted due to friction of the contact parts, and a large amount of power is required, so that the device inevitably becomes large in size.
- means such as a compression spring or a weight that does not use external power requires a large space because the length of the guide block or the compression spring is required in the compliance operation direction.
- An object of the embodiment is to enable the device to be made compact by reducing the contact portion and the influence of friction in the mechanical element having the compliance function.
- the elastic support device is A first member including a first magnet; A second member that includes a second magnet and is disposed so as to face the first member, and is movable relative to the first member when receiving an external force; Equipped with The magnetic force acting between the first magnet and the second magnet holds the second member in the original position when the second member receives no external force, and the second member moves by receiving the external force. When it does, it is constituted so that it may work so that the 2nd member may return to the original position.
- the “original position” refers to the position of the second member when the external force is not applied to the second member.
- a first surface formed by the first member and a second surface formed by the second member are arranged to face each other, The first magnet is arranged on the first surface and the second magnet is arranged on the second surface. According to the above configuration (2), since the first magnet and the second magnet are arranged on the surfaces opposed to each other, they can be arranged close to each other. Therefore, the magnetic forces generated by both can be effectively applied to each other.
- the first magnet and the second magnet are arranged such that different magnetic poles face each other in the original position, and an attraction force is generated between the first magnet and the second magnet.
- configuration (3) when no external force is applied to the second member, the second member is held in the original position by the suction force acting between the second member and the first member.
- a magnetic force that returns to the original position acts due to the suction force acting between the second member and the first member. Therefore, when the external force is no longer applied to the second member, the second member can return to the original position.
- Each of the first magnet and the second magnet is composed of a plurality of magnets arranged at intervals along the moving direction of the second member, The plurality of magnets forming the first magnet and the second magnet are arranged such that different magnetic poles alternately face the opposite magnet along the moving direction of the second member.
- the first magnetic pole of the first magnet is arranged to face the second member side, and the first magnetic pole of the second magnet is arranged to face the first member side,
- the repulsive force acting between the first member and the second member is balanced, and when the second member is moved by the external force acting on the second member, the first member is moved.
- a repulsive force acts between the member and the second member to return the second member to the original position.
- the repulsive forces acting on the second member are balanced, so the second member is held in the original position.
- the balance is lost and a repulsive force is generated between the first member and the second member so as to return the second member to the original position.
- the second member can be returned to its original position when the pressure is removed.
- Each of the first magnet and the second magnet is composed of a plurality of magnets arranged at intervals in the moving direction of the second member, Each of the plurality of magnets forming the first magnet is arranged at an intermediate position between the plurality of magnets forming the second magnet in the original position along the moving direction of the second member. ..
- configuration (6) above when the second member is in the original position, the repulsive forces of the first members on both sides of the second member in the moving direction are balanced and the second member is held in the original position.
- At least one of the first magnet and the second magnet is a permanent magnet.
- a cable for supplying a current to the first magnet or the second magnet unlike the electromagnet is unnecessary. Therefore, there is no possibility that the cable is entangled with the movement of the first member or the second member, hinders the free movement of the second member, and the movement amount of the second member is limited by the presence of the cable. ..
- the first member constitutes one of an inner shaft and an outer shaft of a double structure
- the second member constitutes the other of the inner shaft or the outer shaft
- One of the inner shaft and the outer shaft is configured to be rotatable about the other of the inner shaft and the outer shaft about the inner shaft and the outer shaft.
- the second member is configured to be slidable relative to the first member. According to the above configuration (9), it is possible to elastically support the second member by the biasing force with respect to the sliding movement of the second member and to perform the compliance operation of returning to the original position.
- the first member constitutes one of an inner shaft and an outer shaft of a double structure
- the second member constitutes the other of the inner shaft or the outer shaft
- One of the inner shaft and the outer shaft is configured to be movable along the axial direction of the inner shaft and the outer shaft with respect to the other of the inner shaft and the outer shaft.
- the first member and the second member are composed of the inner shaft and the outer shaft of the double structure, so that stable parallel movement of the second member in the axial direction is possible. It is possible to easily secure a space for disposing the urging force generating portion disposed on the surface where the inner shaft and the outer shaft face each other.
- the second member includes an attachment part for attaching the supported part.
- the second member includes the attachment portion for attaching the supported portion, and thus the desired operation is performed by using the supported portion attached to the second member as a tool. And the tool can be given a compliance function.
- the apparatus in a mechanical element having a compliance function, friction acting between the mechanical elements can be reduced, required power can be reduced, and a space for the length of the compression spring is required as in the compression spring method. Therefore, the apparatus can be made compact.
- FIG. 4 is a cross-sectional plan view taken along the line BB in FIG. 3.
- FIG. 4 is a cross-sectional plan view taken along the line BB in FIG. 3.
- FIG. 6B is a cross-sectional front view (cross section CC in FIG. 6A) of the elastic support device according to the embodiment.
- FIG. 6 is a cross-sectional plan view (cross section DD in FIG. 5) of the elastic support device according to the embodiment.
- expressions such as “identical”, “equal”, and “homogeneous” that indicate that they are in the same state are not limited to strict equality, but also include tolerances or differences in the degree to which the same function is obtained. It also represents the existing state.
- the representation of a shape such as a quadrangle or a cylinder does not only represent a shape such as a quadrangle or a cylinder in a geometrically strict sense, but also an uneven portion or a chamfer within a range in which the same effect can be obtained.
- the shape including parts and the like is also shown.
- the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one element are not exclusive expressions excluding the existence of other elements.
- FIG. 1 to 7A and 7B show an elastic support device 10 (10A, 10B, 10C, 10D) according to some embodiments.
- These elastic supporting devices 10 (10A to 10D) have a first member 12 (12A, 12B) having a first magnet 16 and a second magnet 18, and are arranged to face the first member 12.
- Two members 14 (14A, 14B).
- the second member 14 is configured to be movable relative to the first member 12 by receiving an external force.
- the magnetic force acting between the first magnet 16 and the second magnet 18 holds the second member 14 in the original position when the second member does not receive the external force F or the external force F′, and the second member 14 exerts the external force F.
- the second member 14 is moved by receiving the external force F′, it works to return the second member 14 to the original position.
- the magnetic force acting between the first member 12 and the second member 14 is balanced, so the second member 14 is held in the original position.
- the external force F or the external force F′ is applied to the second member 14 and the second member 14 moves in the direction of the arrow a, the balance of the magnetic force acting on the second member 14 is lost, and the second member 14 works to return to the original position. Therefore, the second member 14 returns to the original position when the external force F or the external force F′ is no longer applied. In this way, the compliance function can be exerted. Since the magnetic force acts on the second member 14 in a non-contact manner, friction does not occur in the magnetic force transmission path.
- the power for moving the second member 14 can be reduced, and unlike the spring member, a space corresponding to the length of the spring is not required in the operation direction of the second member 14, so that the device configuration can be made compact. Further, since the magnetic force is a non-contact urging force, the acting force acting on the second member 14 is stable, so that the second member 14 can be held in the original position with high accuracy when no load is applied.
- the second member 14 is integrally provided with the supported portion 20 for mounting the attachment portion 22.
- a desired work can be performed by using the attachment portion 22 attached to the second member 14 as a tool, and the tool can be provided with a compliance function.
- the attachment part 22 receives an external force F or an external force F′ in a certain direction, that is, an external force F or an external force F′ in a direction in which the second member 14 can move (the direction of arrow a)
- the second member 14 can move. Is configured.
- the first surface 12a formed by the first member 12 and the second surface 14a formed by the second member 14 are arranged to face each other.
- the first magnet 16 is arranged on the first surface 12a
- the second magnet 18 is arranged on the second surface 14a.
- the first magnet 16 arranged on the first surface 12a and the second magnet 18 arranged on the second surface 14a can be arranged close to each other. Therefore, the magnetic forces generated by both can be effectively applied to each other.
- the first magnet 16 and the second magnet 18 are In the original position, the different magnetic poles are arranged to face each other.
- the attractive force is generated between the first magnet 16 and the second magnet 18 and the external force F or the external force F′ is not applied to the second member 14, the second member 14 is separated from the first member 12. It is held in place by the suction force acting on it.
- the first magnet 16 and the second magnet 18 are in the original position in the moving direction of the second member 14, that is, the first surface 12a and the second surface. 14a are arranged so as to overlap each other in the extending direction (direction of arrow a).
- the first magnet 16 and the second magnet 18 can mutually generate an attractive force, and when the external force F or the external force F′ acts on the supported portion 20 and the second member 14 moves from the original position.
- the suction force acting between the first member 12 and the second member 14 can return the second member 14 to the original position.
- the 1st magnet 16 and the 2nd magnet 18 have the same size and shape, and are arranged in the position which completely corresponds in the arrow a direction. As a result, the first magnet 16 and the second magnet 18 can maximize the attraction between them.
- the plurality of first magnets 16 and the plurality of second magnets 18 are arranged along the arrow a direction so that the different magnetic poles face each other. Thereby, the attractive force generated between the first magnet 16 and the second magnet 18 can be increased.
- each of the 1st magnet 16 and the 2nd magnet 18 comprises a plurality of magnets arranged at intervals along the direction of the arrow a.
- the plurality of magnets forming the first magnet 16 and the second magnet 18 are arranged such that different magnetic poles alternately face the opposite magnet along the arrow a direction. That is, between the adjacent magnets, the magnetic poles of the first member 12 and the second member 14 are arranged to be opposite to each other.
- the S pole of the first magnet 16 and the N pole of the second magnet 18 are arranged to face each other in a pair of magnets in the direction of the arrow a, and the adjacent magnets have the first magnet.
- the N pole of 16 and the S pole of the second magnet 18 are arranged to face each other.
- the second member 14 when the external force F or the external force F′ is not applied to the second member 14, the second member 14 is held in the original position by the suction force acting between the second member 14 and the first member 12.
- each of the second magnets 18 receives an attractive force from the first magnet 16 provided on the upstream side in the moving direction and is provided on the downstream side in the moving direction. Repulsive force is received from the first magnet 16. Therefore, when the external force is no longer applied to the second member 14, the second member 14 can quickly and accurately return to the original position.
- a plurality of magnets are arranged along a direction orthogonal to the arrow a direction. This can increase the attraction force with the magnet of the other party.
- a plurality of magnets are arranged in the first member 12 in the orthogonal direction in FIG. 2, a plurality of magnets may be arranged in the second member 14 along the direction orthogonal to the arrow a direction instead.
- the first magnetic pole of the first magnet 16 is the second member 14.
- the first magnetic pole of the second magnet 18 is arranged to face the first member side.
- the second member 14 When the external force F or the external force F′ acts on the attachment portion 22 of the second member 14 and the second member 14 moves in the direction of the arrow a, the second member 14 is moved to the original position between the first member 12 and the second member 14. It is configured so that repulsive force works to return it. According to this embodiment, when the second member 14 having the second magnet 18 is moved from the original position by the external force applied to the attachment portion 22 and then the external force F or the external force F′ is no longer applied, the second member 14 is It can automatically return to the original position and can exert the compliance function.
- the first magnet 16 and the second magnet 18 are each composed of a plurality of magnets arranged at intervals along the direction of the arrow a. Then, each of the plurality of magnets forming the first magnet 16 is arranged at an intermediate position between the plurality of magnets forming the second magnet 18 along the arrow a direction at the original position. Since the individual magnets forming the first magnet 16 and the second magnet 18 receive the same repulsive force from both sides in the arrow a direction, the attachment portion 22 of the second member 14 does not receive the external force F or the external force F′. Sometimes stays in place.
- the individual members forming the first magnet 16 and the second magnet 18 are separated.
- a force for returning to the original position is generated. Therefore, when the external force F or the external force F′ is no longer applied, the second member 14 can accurately return to the original position. If the individual magnets forming the first magnet 16 and the second magnet 18 have the same size and shape and generate the same magnetic force, the individual magnets receive equal repulsive force from both sides.
- the second member 14 can accurately return to the original position. Further, in the original position, even when the individual magnets forming the first magnet 16 and the second magnet 18 are in the exact intermediate position between the counterpart magnets, the individual magnets receive the exact same repulsive force from both sides. When the external force F or the external force F′ is no longer applied, the second member 14 can be accurately returned to the original position.
- the first member 12 (12A) constitutes one of an inner shaft and an outer shaft of a double structure
- the two member 14 (14A) constitutes the other of the inner shaft and the outer shaft.
- one of the inner shaft and the outer shaft is configured to be rotatable about the inner shaft and the outer shaft with respect to the other of the inner shaft and the outer shaft.
- the inner shaft and the outer shaft constitute a double structure in which they are concentrically arranged with each other, and the first member 12 (12A) constitutes the inner shaft,
- the second member 14 (14A) constitutes an outer shaft.
- the reverse configuration may be used.
- the compliance operation of elastically supporting the attachment portion 22 by the biasing force such as a magnetic force and returning to the original position with respect to the swinging movement of the attachment portion 22 about the axis is performed.
- the support structure of the first member 12 (12A) and the second member 14 (14A) of the elastic support device 10 (10A, 10B) will be described below.
- a pair of support brackets 26 are fixed to the base 24 at intervals.
- the first member 12 (12A) and the second member 14 (14A) are inserted between the support brackets 26.
- the first member 12 (12A) arranged inside is fixed to the support bracket 26 via a bolt 28.
- the second member 14 (14A) is arranged so as to be relatively movable via a bearing 30 arranged around the first member 12.
- the first surface 12a and the second surface 14a have a cylindrical shape
- the bolt 28 is an axial center
- the second member 14 (14A) is rotatably arranged around the axial center. ..
- the second member 14 (14B) is slidable with respect to the first member 12 (12B).
- the attachment portion 22 is supported by the external force F or the external force F′ so as to be able to move in parallel, and elastically supports the attachment portion 22 by the biasing force such as a magnetic force and returns to the original position.
- a compliance operation can be performed.
- 7A is a view corresponding to FIG. 6A showing the elastic support device 10 (10)
- FIG. 7B is a view corresponding to FIG. 6B showing the elastic support device 10 (10C).
- the first member 12 (12B) is configured to include one of an inner shaft and an outer shaft having a double structure, and the second member 14 (14B).
- the second member 14 (14B) Is configured to include the other of the inner shaft and the outer shaft.
- one of the inner shaft and the outer shaft is configured to be movable along the axial direction of the inner shaft and the outer shaft with respect to the other of the inner shaft and the outer shaft. According to this embodiment, stable parallel movement of the second member 14 in the axial direction becomes possible. Further, it is possible to easily secure a space for disposing the first magnet 16 provided on the first surface 12a and the second magnet 18 provided on the second surface 14a.
- the inner shaft and the outer shaft constitute a double structure in which they are concentrically arranged, and the first member 12 (12B) constitutes the inner shaft, and the second member The member 14 (14B) constitutes the outer shaft.
- the base 34 is composed of a back plate 34a and support plates 34b and 34c extending from both ends of the back plate 34a in a direction orthogonal to the back plate 34a, and an inner shaft is provided on the support plates 34b and 34c. ..
- a guide rail 36 is provided on the inner surface of the back plate 34a, and the extending direction of the guide rail 36 coincides with the extending direction of the inner shaft.
- a slide base 38 is slidably provided on the guide rail 36, and an outer shaft is fixed to a guide 32 provided around the slide base 38 and the inner shaft. The outer shaft forming the second member 14 moves along the inner shaft together with the guide 32 and the slide base 38 when the attachment portion 22 receives an external force F in the extending direction of the inner shaft.
- At least one of the first magnet 16 and the second magnet 18 is a permanent magnet.
- the first magnet 16 or the second magnet 18 composed of a permanent magnet does not require a cable for supplying a current unlike an electromagnet. Therefore, there is no possibility that the cables are entangled with the movement of the first member 12 or the second member 14 to hinder the free movement of the attachment portion 22 or the movement amount of the attachment portion 22 is limited by the presence of the cable. ..
- the elastic support device 10 constitutes a tip tool attached to the tip of a robot arm having multiple axes and multiple joints, and the attachment part 22 constitutes a working tool.
- the elastic support device 10 can be moved to an arbitrary three-dimensional position and various operations can be performed.
- the attachment part 22 is elastically supported, and when the external force F or the external force F′ disappears, the compliance operation to return to the original position becomes possible.
- the knife can be used for demolition of bone-in meat of a livestock carcass for meat.
- the knife elastically supports the knife against the reaction force received from the bone or meat of the livestock carcass for meat, and retracts the knife from its original position, and when the reaction force is no longer applied, The knife can be returned to its original position. Since a plurality of robot arms operate on one bone-in meat in the demolition process of bone-in meat, it is necessary to make the tip tool of the robot arm as compact as possible, and the elastic support device 10 can meet the needs. ..
- FIGS. 8 and 9 show distributions of magnetic force lines Mf generated from the first magnet 16 and the second magnet 18 in the elastic support device 10 (10A) shown in FIGS. 1 and 2.
- FIG. 8 shows the case where the second member 14 (14A) is in the original position
- FIG. 9 shows that the external force F acts on the attachment portion 22 and the second member 14 (14A) moves in the direction of the arrow a from the original position. Indicates the time. From the figure, it can be seen that magnetic force lines Mf are generated between the different magnetic poles and an attractive force is generated between the different magnetic poles.
- the density of the magnetic force lines Mf is high where a plurality of magnets are arranged in the direction orthogonal to the extending direction of the first surface 12a and the second surface 14a. Further, it is understood that even when the external force F is applied to the attachment portion 22 and the second member 14 moves from the original position, the attractive force is generated between the different magnetic poles.
- FIGS. 4A and 4B show distributions of magnetic force lines Mf generated from the first magnet 16 and the second magnet 18 in the elastic supporting device 10 (10B) shown in FIGS. 4A and 4B.
- FIG. 10 shows the case where the second member 14 (14A) is in the original position
- FIG. 11 shows that the external force F acts on the attachment portion 22 and the second member 14 (14A) moves from the original position in the arrow a direction. It shows the time. From the figure, it can be seen that magnetic force lines Mf are generated between the different magnetic poles and a repulsive force is generated between the magnetic poles.
- each second magnet 18 is larger than the first magnet 16 that is closer than the first magnet 16 that is farther away. You can see that they are receiving repulsive force.
- the second member 14 (14A) returns to the original position due to the difference between the repulsive forces on both sides.
- the arrangement of the N poles and the S poles of the first magnet 16 and the second magnet 18 shown in each drawing is an example in each drawing, and other than that, for example, in each drawing, The arrangement of the north and south poles of the first magnet 16 and the second magnet 18 shown may be reversed.
- a mechanical element having a compliance function it is possible to realize a compact device by reducing the contact portion and the influence of friction between each member.
- Elastic support device 12 (12A, 12B) 1st member 12a 1st surface 14 (14A, 14B) 2nd member 14a 2nd surface 16 1st magnet 18 2nd magnet 20 Supported Part 22 Attachment part 24, 34 Base 34a Back plate 34b, 34c Support plate 26 Support bracket 28 Bolt 30 Bearing 32 Guide 36 Guide rail 38 Sliding base F, F'External force Mf Magnetic field line
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Robotics (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Vibration Prevention Devices (AREA)
- Manipulator (AREA)
- Processing Of Meat And Fish (AREA)
- Electromagnets (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
特許文献1には、食肉用家畜屠体の骨付き肉を切断して骨と肉を分離するカッタ機構において、ナイフを圧縮バネなどで弾性支持して上記機能を可能にすることが開示されている。
第1磁石を含む第1部材と、
第2磁石を含み前記第1部材に対して対向して配置され、外力を受けたとき前記第1部材に対して相対移動可能な第2部材と、
を備え、
前記第1磁石と前記第2磁石との間に働く磁力は、前記第2部材が外力を受けないとき、前記第2部材を前記原位置に保持し、前記第2部材が外力を受けて移動したとき、前記第2部材を原位置に復帰させるように働くように構成される。
ここで、「原位置」とは、第2部材に外力が付加されないときの第2部材の位置をいう。
前記第1部材が形成する第1面と前記第2部材が形成する第2面とは互いに対向して配置され、
前記第1磁石は前記第1面に配置され、前記第2磁石は前記第2面に配置される。
上記(2)の構成によれば、第1磁石と第2磁石とは互いに対向して配置される面に配置されるため、互いに接近して配置できる。従って、両者から発生する磁力を両者間で有効に作用させ合うことができる。
前記第1磁石及び前記第2磁石は、前記原位置において異磁性極同士が向かい合うように配置され、前記第1磁石と前記第2磁石との間に吸引力が発生するように構成される。
上記(3)の構成によれば、第2部材に外力が付加されないとき、第2部材は第1部材との間に働く吸引力によって原位置に保持される。第2部材に外力が加わり原位置から移動したとき、第1部材との間に働く吸引力によって原位置に戻す磁力が働く。従って、第2部材に外力の付加がなくなった時、第2部材は原位置に復帰できる。
前記第1磁石及び前記第2磁石の各々は、前記第2部材の移動方向に沿って間隔をおいて配置された複数の磁石で構成され、
前記第1磁石及び前記第2磁石を構成する複数の磁石は、前記第2部材の移動方向に沿って交互に異なる磁性極が相手方磁石に向かい合うように配置される。
上記(4)の構成によれば、第2部材に外力が付加されないとき、第2部材は第1部材との間に働く吸引力によって原位置に保持される。第2部材に外力が加わり原位置から移動したとき、個々の第2磁石は、移動方向上流側に設けられた第1磁石から吸引力を受けると共に、移動方向下流側に設けられた第1磁石から反発力を受ける。従って、第2部材に外力の付加がなくなった時、第2部材は速やかにかつ正確に原位置に復帰できる。
前記第1磁石の第1磁性極は前記第2部材側に向くように配置されると共に、前記第2磁石の前記第1磁性極は前記第1部材側に向くように配置され、
前記第2部材が前記原位置にあるときは前記第1部材と前記第2部材間に働く反発力はバランスされ、前記第2部材に働く外力によって前記第2部材が移動したとき、前記第1部材と前記第2部材間に前記第2部材を前記原位置に戻すように反発力が働くように構成される。ここで、第1磁石及び第2磁石の夫々の第1磁性極同士は、同一磁性極であることを意味する。
上記(5)の構成によれば、第2部材が原位置にあるとき、第2部材に働く反発力はバランスしているので、第2部材は原位置に保持される。第2部材に外力が付加され第2部材が移動したとき、該バランスがくずれ、第1部材と第2部材間に第2部材を原位置に戻すように反発力が発生するため、外力の付加がなくなった時、第2部材は原位置に復帰できる。
前記第1磁石及び前記第2磁石の各々は、前記第2部材の移動方向に間隔をおいて配置された複数の磁石で構成され、
前記第1磁石を構成する前記複数の磁石の各々は、前記原位置において前記第2部材の前記移動方向に沿って前記第2磁石を構成する前記複数の磁石の間の中間位置に配置される。
上記(6)の構成によれば、第2部材が原位置にあるとき、第2部材の移動方向両側にある第1部材の反発力がバランスして第2部材は原位置に保持される。第2部材に外力が加わって第2部材が移動したとき、各磁石に作用する反発力のバランスがくずれ、第2部材を原位置に復帰させる力が発生する。従って、外力が加わらなくなったとき、第2部材は原位置に正確に復帰できる。
前記第1磁石及び前記第2磁石の少なくとも一方は永久磁石で構成される。
上記(7)の構成によれば、電磁石のように第1磁石又は第2磁石に電流を供給するケーブルが不要となる。従って、第1部材や第2部材の動きによって該ケーブルがこれらに絡まって、第2部材の自由な動きを阻害したり、該ケーブルの存在によって第2部材の移動量が制限されるおそれはない。
前記第1部材は、二重構造の内側軸及び外側軸の一方を構成すると共に、前記第2部材は前記内側軸又は前記外側軸の他方を構成し、
前記内側軸又は前記外側軸の一方は、前記内側軸又は前記外側軸の他方に対して前記内側軸及び前記外側軸の軸中心に回動可能に構成される。
上記(8)の構成によれば、第2部材の上記軸中心の揺動運動に対して付勢力によって第2部材を弾性的に支持し、かつ原位置に復帰させるコンプライアンス動作を行わせることができる。
前記第2部材は前記第1部材に対して相対的にスライド可能に構成される。
上記(9)の構成によれば、第2部材のスライド移動に対して付勢力によって第2部材を弾性的に支持し、かつ原位置に復帰させるコンプライアンス動作を行わせることができる。
前記第1部材は、二重構造の内側軸及び外側軸の一方を構成すると共に、前記第2部材は前記内側軸又は前記外側軸の他方を構成し、
前記内側軸又は前記外側軸の一方は、前記内側軸又は前記外側軸の他方に対して前記内側軸及び前記外側軸の軸方向に沿って移動可能に構成される。
上記(10)の構成によれば、第1部材及び第2部材は、二重構造の内側軸及び外側軸で構成されるので、第2部材の軸方向の安定した平行移動が可能になると共に、内側軸と外側軸との対向面に配置する付勢力発生部の配置スペースを容易に確保できる。
前記第2部材は、被支持部を取り付けるためのアタッチメント部を含む。
上記(11)の構成によれば、前記第2部材は、被支持部を取り付けるためのアタッチメント部を含むため、第2部材に取り付けられた被支持部をツールとして使うことで所望の作業を行うことができると共に、該ツールにコンプライアンス機能を与えることができる。
例えば、「ある方向に」、「ある方向に沿って」、「平行」、「直交」、「中心」、「同心」或いは「同軸」等の相対的或いは絶対的な配置を表す表現は、厳密にそのような配置を表すのみならず、公差、若しくは、同じ機能が得られる程度の角度や距離をもって相対的に変位している状態も表すものとする。
例えば、「同一」、「等しい」及び「均質」等の物事が等しい状態であることを表す表現は、厳密に等しい状態を表すのみならず、公差、若しくは、同じ機能が得られる程度の差が存在している状態も表すものとする。
例えば、四角形状や円筒形状等の形状を表す表現は、幾何学的に厳密な意味での四角形状や円筒形状等の形状を表すのみならず、同じ効果が得られる範囲で、凹凸部や面取り部等を含む形状も表すものとする。
一方、一つの構成要素を「備える」、「具える」、「具備する」、「含む」、又は「有する」という表現は、他の構成要素の存在を除外する排他的な表現ではない。
一実施形態では、第1磁石16と第2磁石18とは同一の大きさ及び形状を有し、矢印a方向で完全に一致する位置に配置されている。これによって、第1磁石16と第2磁石18とは互いに吸引力を最大限に発揮できる。
一実施形態では、矢印a方向に沿って複数の第1磁石16及び第2磁石18が互いに異磁性極が向かい合うように配置される。これによって、第1磁石16及び第2磁石18間に発生する吸引力を増加できる。
この実施形態によれば、第2部材14に外力F又は外力F’が付加されないとき、第2部材14は第1部材12との間に働く吸引力によって原位置に保持される。第2部材14に外力が加わり原位置から移動したとき、個々の第2磁石18は、移動方向上流側に設けられた第1磁石16から吸引力を受けると共に、移動方向下流側に設けられた第1磁石16から反発力を受ける。従って、第2部材14に外力の付加がなくなった時、第2部材14は速やかにかつ正確に原位置に復帰できる。
この実施形態によれば、第2磁石18を有する第2部材14がアタッチメント部22に加わる外力によって原位置から移動した後、外力F又は外力F’の付加がなくなった時、第2部材14は自動的に原位置に復帰でき、コンプライアンス機能を発揮できる。
なお、第1磁石16及び第2磁石18を構成する個々の磁石を同一の大きさ及び形状とし、同一の磁力を発生する磁石とすれば、個々の磁石は両側から同等の反発力を受ける。従って、被支持部20が外力F又は外力F’を受けなくなった時、第2部材14は原位置に精度良く復帰できる。
また、原位置において、第1磁石16及び第2磁石18を構成する個々の磁石が相手方磁石間で正確に中間位置にあるときも、個々の磁石は両側から正確に同等の反発力を受けるため、外力F又は外力F’が加わらなくなったとき、第2部材14は原位置に正確に復帰できる。
一実施形態では、第1面12a及び第2面14aは円筒形状を有し、ボルト28を軸中心とし、第2部材14(14A)は該軸中心を中心に回動可能に配置されている。
この実施形態によれば、アタッチメント部22は外力F又は外力F’が加わることで平行移動可能に支持され、かつ磁力などの付勢力によってアタッチメント部22を弾性的に支持し、かつ原位置に復帰させるコンプライアンス動作を行わせることができる。
なお、図7Aは弾性支持装置10(10)を示す図6Aに対応する図であり、図7Bは弾性支持装置10(10C)を示す図6Bに対応する図である。
図5~図7A、7Bに示す実施形態では、内側軸と外側軸とは互いに同心状に配置された二重構造を構成し、第1部材12(12B)は内側軸を構成し、第2部材14(14B)は外側軸を構成している。
12(12A、12B) 第1部材
12a 第1面
14(14A、14B) 第2部材
14a 第2面
16 第1磁石
18 第2磁石
20 被支持部
22 アタッチメント部
24、34 基台
34a 背板
34b、34c 支持板
26 支持ブラケット
28 ボルト
30 軸受
32 ガイド
36 ガイドレール
38 摺動台
F、F’ 外力
Mf 磁力線
Claims (11)
- 第1磁石を含む第1部材と、
第2磁石を含み前記第1部材に対して対向して配置され、外力を受けたとき前記第1部材に対して相対移動可能な第2部材と、
を備え、
前記第1磁石と前記第2磁石との間に働く磁力は、前記第2部材が外力を受けないとき前記第2部材を前記原位置に保持し、前記第2部材が外力を受けて移動したとき前記第2部材を原位置に復帰させるように働くように構成されたことを特徴とする弾性支持装置。 - 前記第1部材が形成する第1面と前記第2部材が形成する第2面とは互いに対向して配置され、
前記第1磁石は前記第1面に配置され、前記第2磁石は前記第2面に配置されたことを特徴とする請求項1に記載の弾性支持装置。 - 前記第1磁石及び前記第2磁石は、前記原位置において異磁性極同士が向かい合うように配置され、前記第1磁石と前記第2磁石との間に吸引力が発生するように構成されたことを特徴とする請求項1又は2に記載の弾性支持装置。
- 前記第1磁石及び前記第2磁石の各々は、前記第2部材の移動方向に沿って間隔をおいて配置された複数の磁石で構成され、
前記第1磁石及び前記第2磁石を構成する複数の磁石は、前記第2部材の移動方向に沿って交互に異なる磁性極が相手方磁石に向かい合うように配置されることを特徴とする請求項3に記載の弾性支持装置。 - 前記第1磁石の第1磁性極は前記第2部材側に向くように配置されると共に、前記第2磁石の前記第1磁性極は前記第1部材側に向くように配置され、
前記第2部材が前記原位置にあるときは前記第1部材と前記第2部材間に働く反発力はバランスされ、前記第2部材に働く外力によって前記第2部材が移動したとき、前記第1部材と前記第2部材間に前記第2部材を前記原位置に戻すように反発力が働くように構成されたことを特徴とする請求項1又は2に記載の弾性支持装置。 - 前記第1磁石及び前記第2磁石の各々は、前記第2部材の移動方向に間隔をおいて配置された複数の磁石で構成され、
前記第1磁石を構成する前記複数の磁石の各々は、前記原位置において前記第2部材の前記移動方向に沿って前記第2磁石を構成する前記複数の磁石の間の中間位置に配置されたことを特徴とする請求項5に記載の弾性支持装置。 - 前記第1磁石及び前記第2磁石の少なくとも一方は永久磁石で構成されたことを特徴とする請求項1乃至6の何れか一項に記載の弾性支持装置。
- 前記第1部材は、二重構造の内側軸及び外側軸の一方を構成すると共に、前記第2部材は前記内側軸又は前記外側軸の他方を構成し、
前記内側軸又は前記外側軸の一方は、前記内側軸又は前記外側軸の他方に対して前記内側軸及び前記外側軸の軸中心に回動可能に構成されたことを特徴とする請求項1乃至7の何れか一項に記載の弾性支持装置。 - 前記第2部材は前記第1部材に対して相対的にスライド可能に構成されたことを特徴とする請求項1乃至8の何れか一項に記載の弾性支持装置。
- 前記第1部材は、二重構造の内側軸及び外側軸の一方を構成すると共に、前記第2部材は前記内側軸又は前記外側軸の他方を構成し、
前記内側軸又は前記外側軸の一方は、前記内側軸又は前記外側軸の他方に対して前記内側軸及び前記外側軸の軸方向に沿って移動可能に構成されたことを特徴とする請求項9に記載の弾性支持装置。 - 前記第2部材は、被支持部を取り付けるためのアタッチメント部を含むことを特徴とする請求項1乃至10の何れか一項に記載の弾性支持装置。
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CN201980077283.0A CN113163776B (zh) | 2018-12-25 | 2019-12-04 | 弹性支承装置 |
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- 2019-12-04 WO PCT/JP2019/047451 patent/WO2020137402A1/ja unknown
- 2019-12-04 ES ES19904189T patent/ES2938731T3/es active Active
- 2019-12-04 CN CN201980077283.0A patent/CN113163776B/zh active Active
- 2019-12-04 CA CA3103957A patent/CA3103957C/en active Active
- 2019-12-04 PL PL19904189.8T patent/PL3794946T3/pl unknown
- 2019-12-04 DK DK19904189.8T patent/DK3794946T3/da active
- 2019-12-04 FI FIEP19904189.8T patent/FI3794946T3/fi active
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Patent Citations (4)
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JPS51105143A (ja) * | 1975-03-11 | 1976-09-17 | Nippon Doaachetsuku Seizo Kk | |
JPS531946A (en) * | 1976-06-25 | 1978-01-10 | Nippon Door Check Mfg Co | Pivot supporting structure for swing door and pivoted door |
JP2006207662A (ja) * | 2005-01-26 | 2006-08-10 | Ckd Corp | 空気圧アクチュエータ |
WO2008096460A1 (en) | 2007-02-06 | 2008-08-14 | Mayekawa Mfg. Co., Ltd. | Cutter mechanism and meat cutting apparatus |
Also Published As
Publication number | Publication date |
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US11639743B2 (en) | 2023-05-02 |
EP3794946B1 (en) | 2023-01-18 |
PL3794946T3 (pl) | 2023-03-27 |
EP3794946A1 (en) | 2021-03-24 |
JP2020099300A (ja) | 2020-07-02 |
ES2938731T3 (es) | 2023-04-14 |
CA3103957C (en) | 2023-08-15 |
CN113163776A (zh) | 2021-07-23 |
BR112020025517A2 (pt) | 2021-03-09 |
FI3794946T3 (fi) | 2023-03-14 |
EP3794946A4 (en) | 2021-12-08 |
CN113163776B (zh) | 2023-06-09 |
JP7270375B2 (ja) | 2023-05-10 |
US20210239176A1 (en) | 2021-08-05 |
CA3103957A1 (en) | 2020-07-02 |
DK3794946T3 (da) | 2023-01-30 |
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