WO2016076234A1 - ロータリダンパ - Google Patents
ロータリダンパ Download PDFInfo
- Publication number
- WO2016076234A1 WO2016076234A1 PCT/JP2015/081376 JP2015081376W WO2016076234A1 WO 2016076234 A1 WO2016076234 A1 WO 2016076234A1 JP 2015081376 W JP2015081376 W JP 2015081376W WO 2016076234 A1 WO2016076234 A1 WO 2016076234A1
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- WIPO (PCT)
- Prior art keywords
- cylindrical chamber
- rotor
- vane
- lid
- rotary damper
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/12—Devices with one or more rotary vanes turning in the fluid any throttling effect being immaterial, i.e. damping by viscous shear effect only
- F16F9/125—Devices with one or more rotary vanes turning in the fluid any throttling effect being immaterial, i.e. damping by viscous shear effect only characterised by adjustment means
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/145—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only rotary movement of the effective parts
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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
- F16F2230/00—Purpose; Design features
- F16F2230/18—Control arrangements
- F16F2230/186—Control arrangements with manual adjustments
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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
- F16F2232/00—Nature of movement
- F16F2232/02—Rotary
Definitions
- the present invention relates to a rotary damper, and more particularly to a rotary damper capable of adjusting a braking torque generated by rotation.
- Patent Document 1 discloses a rotary damper that has a simple structure and can be manufactured at low cost.
- the rotary damper described in Patent Document 1 is a cylinder that is attached to an end surface on the opening side of a case, a case having a cylindrical chamber, a rotor that is rotatably accommodated in the cylindrical chamber, a viscous fluid filled in the cylindrical chamber, and the case. And a lid for containing the rotor together with the viscous fluid.
- the rotor has a cylindrical rotor main body and a vane formed so as to protrude radially outward from the outer peripheral surface of the rotor main body so as to form a slight gap with the side wall surface of the cylindrical chamber.
- the vane is formed with a flow path connecting from one side surface (referred to as the first side surface) perpendicular to the rotation direction of the rotor to the other side surface (referred to as the second side surface).
- a sealing material that fills a slight gap with the side wall surface of the cylindrical chamber is attached to the tip surface of the vane (the surface facing the side wall surface of the cylindrical chamber). This sealing material has an elastic check valve that opens and closes a flow path formed in the vane.
- a partition portion protruding radially inward is formed on the side wall surface of the cylindrical chamber so as to form a slight gap with the outer peripheral surface of the rotor body.
- the rotary damper disclosed in Patent Document 1 is configured such that when a force that rotates the vane in the direction from the first side surface to the second side surface (forward rotation direction) is applied to the rotor, the viscosity in the cylindrical chamber is increased.
- the check valve is pressed against the second side surface of the vane by the fluid, and the flow path is blocked by the check valve.
- the movement of the viscous fluid is caused by the clearance between the partition portion of the cylindrical chamber and the outer peripheral surface of the rotor body, and the clearance between the closing side end surface (bottom surface) of the case and the lower surface of the vane (surface facing the closing side end surface of the case).
- the pressure on the viscous fluid on the second side surface of the vane is increased and a strong braking torque is generated.
- a force is applied to the rotor in the direction from the second side surface of the vane toward the first side surface (reverse direction)
- the viscous fluid on the first side surface side of the vane flows into the flow path and check. Push up the valve to open the flow path. Therefore, since the viscous fluid moves also in the flow path formed in the vane, the pressure on the viscous fluid on the first side surface side of the vane does not increase, and thus a weak braking torque is generated.
- the rotary damper described in Patent Document 1 includes a braking force adjusting mechanism for adjusting a strong braking torque that is generated when a force rotating in the forward rotation direction is applied to the rotor.
- the braking force adjusting mechanism includes an elastic member disposed so as to be interposed between the opening side end surface of the case and the lid, a plurality of bolts for attaching the lid to the opening side end surface of the case via the elastic member, It is configured with.
- a plurality of screw holes are formed in the opening side end face of the case, and through holes are formed in the elastic member and the lid at positions corresponding to these screw holes.
- the plurality of bolts are inserted into the through holes of the lid and the elastic member, respectively, and screwed into the screw holes formed on the opening side end surface of the case. And the pushing amount of the rotor pushed into the cylindrical chamber of the case by the lid is adjusted by the tightening degree of the plurality of bolts. As a result, the clearance between the closing side end surface of the case and the lower surface of the vane is adjusted, and a strong braking torque generated when a force for rotating in the forward rotation direction is applied to the rotor can be adjusted.
- the rotary damper braking force adjustment mechanism described in Patent Document 1 includes an elastic member disposed so as to be interposed between the opening-side end surface of the case and the lid, and the lid on the opening side of the case via the elastic member. Since a plurality of bolts for attaching to the end face are provided, the number of parts of the rotary damper increases. Further, in order to properly arrange the rotor in the cylindrical chamber, it is necessary to make the tightening degree of each of the plurality of bolts the same so that the pushing amount of the rotor by the lid is uniform over the entire surface of the lid. For this reason, the adjustment work of the braking torque is complicated.
- the present invention has been made in view of the above circumstances, and an object thereof is to provide a rotary damper that can easily adjust a braking torque generated by rotation with a simple configuration.
- the present invention is a rotary damper that generates a braking torque against an applied rotational force by restricting the movement of a filled viscous fluid, and a lid is screwed into a case.
- the present invention is a rotary damper that generates a braking torque for an applied rotational force by limiting the movement of a viscous fluid
- a case having a cylindrical chamber open at one end and filled with the viscous fluid;
- a rotor housed in the cylindrical chamber so as to be rotatable relative to the cylindrical chamber;
- a lid attached to the opening side of the cylindrical chamber and sealing the rotor together with the viscous fluid into the cylindrical chamber;
- the rotor is A cylindrical rotor body;
- a vane that protrudes radially outward from the outer peripheral surface of the rotor body, and the tip end surface is adjacent to the side wall surface of the cylindrical chamber, and partitions the cylindrical chamber;
- the case is A partition portion that projects radially inward from the side wall surface of the cylindrical chamber, the front end surface is close to the outer peripheral surface of the rotor body, and partitions the cylindrical chamber;
- An internal thread portion formed on the side wall surface on the opening side of the cylindrical chamber,
- the lid
- the rotary damper may further include a first seal material that closes a gap between a front end surface of the partition portion and an outer peripheral surface of the rotor body. Moreover, you may further provide the 2nd sealing material which block
- the rotary damper is formed in the partition portion or the vane, and has a flow path extending between both side surfaces of the partition portion or the vane along the rotation direction of the rotor, and the rotor is connected to the cylindrical chamber.
- a check valve that closes the flow path when rotating in the forward rotation direction relatively and releases the flow path when the rotor rotates in the reverse rotation direction relative to the cylindrical chamber; It may be further provided.
- the check valve may be formed integrally with the first seal material or the second seal material.
- the lid is screwed into the case, and the gap between the lid and at least one of the partition part of the cylindrical chamber and the vane can be adjusted by the screwing amount of the lid into the case. For this reason, it is possible to adjust the braking torque generated by the rotation by adjusting the moving amount of the viscous fluid moving through these gaps with a simple configuration and simple work without increasing the number of parts. .
- FIGS. 3A and 3B are an enlarged view of a portion A and an enlarged view of a portion B of the rotary damper 1 shown in FIG. 4A is an enlarged view of a portion C of the rotary damper 1 shown in FIG. 2A, and FIG.
- FIG. 4B is an enlarged view of a portion D of the rotary damper 1 shown in FIG. 2B.
- 5A is a front view of the case 11
- FIG. 5B is a cross-sectional view of the case 11 shown in FIG. 5A
- FIG. It is a rear view.
- 6A and 6B are a front view and a side view of the rotor 12
- FIG. 6C is a DD cross-sectional view of the rotor 12 shown in FIG. 6A.
- 7A and 7B are a front view and a side view of the first seal material 13
- FIG. 7C is an EE view of the first seal material 13 shown in FIG. 7A. It is sectional drawing. 8A and FIG.
- FIG. 8B are a front view and a side view of the second sealing material 14, and FIG. 8C is an FF of the second sealing material 14 shown in FIG. 8A. It is sectional drawing. 9A to 9C are a front view, a side view, and a rear view of the lid 15, and FIG. 9D is a cross-sectional view taken along the line GG of the lid 15 shown in FIG. 9A. It is.
- FIG. 1A to 1C are a front view, a side view, and a rear view of a rotary damper 1 according to an embodiment of the present invention.
- 2A is a cross-sectional view taken along the line AA of the rotary damper 1 shown in FIG. 1A
- FIG. 2B is a cross-sectional view taken along the line BB of the rotary damper 1 shown in FIG.
- FIG. 3 (A) and 3 (B) are an enlarged view of A part and an enlarged view of B part of the rotary damper 1 shown in FIG. 2 (A)
- FIG. 4 (A) is FIG. 2 (A).
- FIG. 4B is an enlarged view of a part D of the rotary damper 1 shown in FIG. 2B.
- the rotary damper 1 includes a case 11, a rotor 12 accommodated in the case 11 so as to be rotatable relative to the case 11, and oil filled in the case 11. And a viscous fluid (not shown) such as silicon, and a lid 15 for enclosing the rotor 12 in the case 11 together with the viscous fluid.
- a viscous fluid such as silicon
- FIG. 5A is a front view of the case 11
- FIG. 5B is a cross-sectional view of the case 11 shown in FIG. 5A
- FIG. It is a rear view.
- a cylindrical chamber (bottomed cylindrical space) 111 having an open end is formed in the case 11, and an opening 113 for inserting the rotor 12 is formed in the bottom 112 of the cylindrical chamber 111. Is formed.
- the rotor 12 has a lower end 123a (see FIG. 6) of a rotor body 121, which will be described later, inserted into the opening 113 so that the rotation shaft 120 of the rotor 12 coincides with the center line 110 of the cylindrical chamber 111. It is accommodated in the cylindrical chamber 111 (see FIGS. 2A and 4A).
- the cylindrical chamber 111 protrudes inward in the radial direction on the side wall surface 114, and the front end surface 116 comes close to an outer peripheral surface 124 (see FIG. 6) of a rotor main body 121 described later of the rotor 12 to partition the cylindrical chamber 111.
- a pair of partition portions 115 are formed symmetrically with respect to the center line 110 along the center line 110 of the cylindrical chamber 111.
- the pair of partition portions 115 are each provided with a first seal material 13 described later (see FIG. 4B).
- a female threaded portion 117 is formed on the opening side 118 of the side wall surface 114 of the cylindrical chamber 111 so as to be screwed with a female threaded portion 152 (see FIG. 9) described later of the lid 15.
- FIG. 6 (A) and 6 (B) are a front view and a side view of the rotor 12, and FIG. 6 (C) is a DD cross-sectional view of the rotor 12 shown in FIG. 6 (A).
- the rotor 12 includes a cylindrical rotor body 121 and a pair of vanes (rotary blades) 122 formed symmetrically with respect to the rotating shaft 120 of the rotor 12.
- the vane 122 is formed along the rotation axis 120 of the rotor 12, protrudes radially outward from the outer peripheral surface 124 of the rotor body 121, and the tip end surface 125 is close to the side wall surface 114 of the cylindrical chamber 111 of the case 11.
- the cylindrical chamber 111 is partitioned.
- the vane 122 is formed with a flow path 126 that penetrates between both side surfaces 127 a and 127 b of the vane 122 along the rotation direction of the rotor 12.
- the pair of vanes 122 are each fitted with a second sealing material 14 described later (see FIG. 4B).
- a through hole 128 for inserting a hexagonal shaft (not shown) for transmitting a rotational force from the outside to the rotor 12 is formed around the rotation shaft 120.
- the lower end part 123a of the rotor main body 121 is rotatably inserted in the opening part 113 formed in the bottom part 112 of the cylindrical chamber 111 of the case 11 (refer FIG. 2 (A) and FIG. 4 (A)), and a rotor main body.
- An upper end 123b of 121 is rotatably inserted into an opening 150 (see FIG. 9) described later of the lid 15 (see FIGS. 2A, 3A, and 3B).
- a sealing material such as an O-ring 16a is interposed between the lower end 123a of the rotor body 121 and the opening 113 of the cylindrical chamber 111 so that the viscous fluid does not leak to the outside from the opening 113 of the cylindrical chamber 111. (See FIG. 4A).
- FIG. 7A and 7B are a front view and a side view of the first seal material 13, and FIG. 7C is an EE view of the first seal material 13 shown in FIG. 7A. It is sectional drawing.
- the first sealing material 13 has a U-shape that can be attached to a partition 115 formed in the cylindrical chamber 111 of the case 11, and the bottom 130 is connected to the front end surface 116 of the partition 115.
- the 1st sealing material 13 is arrange
- FIG. 8A and FIG. 8B are a front view and a side view of the second sealing material 14, and FIG. 8C is an FF of the second sealing material 14 shown in FIG. 8A. It is sectional drawing.
- the second sealing material 14 has a U-shape that can be attached to the vane 122 of the rotor 12, and is longer than the width t ⁇ b> 1 (see FIG. 6A) in the rotation direction of the vane 122.
- a bottom 140 having t2 and a width t4 that is formed integrally with one end 141 of the bottom 140 and longer than the radial width t3 (see FIG. 6B) of the flow path 126 formed in the vane 122.
- a first leg 143 having a second leg 144 formed integrally with the other end 142 of the bottom 140 and having a width t5 shorter than a radial width t3 of the flow path 126 formed in the vane 122; Have.
- the second sealing material 14 attached to the vane 122 closes the gap by the bottom 140 being interposed between the tip surface 125 of the vane 122 and the side wall surface 114 of the cylindrical chamber 111 of the case 11 (FIG. 4). (See (B)). Further, as shown in FIG. 2B, when the rotor 12 rotates in the normal rotation direction N relative to the cylindrical chamber 111 of the case 11, the first leg portion 143 of the second sealing material 14 becomes the vane 122. The flow path 126 formed in the vane 122 is blocked by abutting against one side surface 127a.
- FIG. 9A to 9C are a front view, a side view, and a rear view of the lid 15, and FIG. 9D is a cross-sectional view taken along the line GG of the lid 15 shown in FIG. 9A. It is.
- the lid 15 has an opening 150 for inserting the upper end 123 b of the rotor body 121 of the rotor 12 at a position facing the opening 113 formed in the bottom 112 of the cylindrical chamber 111 of the case 11. Is formed. Further, a male screw portion 152 that is screwed with a female screw portion 117 formed on the opening side 118 of the side wall surface 114 of the cylindrical chamber 111 is formed on the outer peripheral surface 151 of the lid 15. The lower surface (back surface) 153 of the lid 15 is filled in the cylindrical chamber 111 between the upper surface (surface facing the lower surface 153 of the lid 15) 119 of the partition 115 formed in the cylindrical chamber 111 of the case 11.
- a gap g1 functioning as a viscous fluid flow path is formed (see FIG. 3A), and a cylindrical chamber is formed between the upper surface of the vane 122 of the rotor 12 (the surface facing the lower surface 153 of the lid 15) 129.
- a gap g2 that functions as a flow path for the viscous fluid filled in 111 is formed (see FIG. 3B).
- the gaps g1 and g2 functioning as flow paths for these viscous fluids adjust the screwing amount of the lid 15 into the case 11 (the screwing amount between the female screw portion 152 of the lid 15 and the male screw portion 117 of the case 11). Can be adjusted.
- a sealing material such as an O-ring 16 b is interposed between the upper end portion 123 b of the rotor body 121 of the rotor 12 and the opening portion 150 of the lid 15 so that the viscous fluid does not leak to the outside from the opening portion 150 of the lid 15. You may let them.
- a sealing material such as an O-ring 16c is attached to the lid 15 so that viscous fluid does not leak to the outside from the threaded portion between the male threaded portion 152 of the lid 15 and the female threaded portion 117 of the cylindrical chamber 111 of the case 11. You may interpose between the outer peripheral surface 151 and the side wall 114 of the cylindrical chamber 111 (refer FIG. 3 (A) and FIG. 3 (B)).
- the gap between the tip end surface 125 of the vane 122 and the side wall surface 114 of the cylindrical chamber 111 of the case 11 is closed by the second sealing material 14 attached to the vane 122 of the rotor 12 (FIG. 4B). reference). Therefore, the movement of the viscous fluid filled in the cylindrical chamber 111 causes a gap g1 between the lower surface 153 of the lid 15 and the upper surface 119 of the partition 115 and a gap g2 between the lower surface 153 of the lid 15 and the upper surface 129 of the vane 122.
- the pressure on the viscous fluid in the region 111a (see FIG. 2B), which is limited only through the vane 122 and is partitioned by the partition portion 115 positioned on the side of the forward rotation direction N with respect to the vane 122, is increased. For this reason, a strong braking torque is generated.
- the gap g1 between the lower surface 153 of the lid 15 and the upper surface 119 of the partition 115 and the gap g2 between the lower surface 153 of the lid 15 and the upper surface 129 of the vane 122 are the screwing amount of the lid 15 into the case 11 (the lid 15 It is possible to adjust by adjusting the screwing amount of the female screw portion 152 of the case 11 and the male screw portion 117 of the case 11. For this reason, the braking torque generated by the rotation can be adjusted by adjusting the moving amount of the viscous fluid moving through the gaps g1 and g2.
- the first leg portion 143 of the second sealing material 14 is one side surface of the vane 122.
- the flow path 126 formed in the vane 122 is opened away from the 127a. Therefore, the movement of the viscous fluid filled in the cylindrical chamber 111 moves to the gap g1 between the lower surface 153 of the lid 15 and the upper surface 119 of the partition 115 and the gap g2 between the lower surface 153 of the lid 15 and the upper surface 129 of the vane 122.
- the lid 15 is screwed into the case 11 in the rotary damper 1 that generates a braking torque against the applied rotational force by restricting the movement of the filled viscous fluid
- the gap g1 between the lower surface 153 of the lid 15 and the upper surface 119 of the partition portion 115 and the gap g2 between the lower surface 153 of the lid 15 and the upper surface 129 of the vane 122 can be adjusted by the screwing amount of the lid 15 into the case 11. For this reason, the amount of viscous fluid moving through the gaps g1 and g2 is adjusted by adjusting the braking torque generated by the rotation with a simple configuration and simple operation without increasing the number of parts. Can do.
- the first sealing material 13 and the second sealing material 14 are made of the rotor by using a resin having excellent slidability such as polyamide for the first sealing material 13 and the second sealing material 14.
- 12 functions as a sliding bearing that slidably supports the outer peripheral surface 124 of the rotor body 121, so that the hexagonal shaft is absorbed by absorbing backlash due to the eccentricity of the hexagonal shaft that transmits the rotational force from the outside to the rotor 12. Can be rotated smoothly.
- the case where the gap g2 is adjustable is described as an example.
- the present invention only requires that at least one of the gap g1 between the lower surface 153 of the lid 15 and the upper surface 119 of the partition 115 and the gap g2 between the lower surface 153 of the lid 15 and the upper surface 129 of the vane 122 can be adjusted.
- a sealing material (this sealing material may be formed integrally with the first sealing material 13) is disposed between the lower surface 153 of the lid 15 and the upper surface 119 of the partition part 115 to close the gap g1.
- the viscous fluid moves through the gap g ⁇ b> 2 between the lower surface 153 of the lid 15 and the upper surface 129 of the vane 122.
- the gap g2 may be adjustable depending on the screwing amount of the lid 15 into the case 11.
- a sealing material (this sealing material may be formed integrally with the second sealing material 14) is disposed between the lower surface 153 of the lid 15 and the upper surface 129 of the vane 122 to close the gap g2.
- the viscous fluid moves through the gap g 1 between the lower surface 153 of the lid 15 and the upper surface 119 of the partition part 115.
- the gap g1 may be adjustable depending on the screwing amount of the lid 15 into the case 11.
- the present invention is not limited to this. As long as the number of partitions 115 formed in the cylindrical chamber 111 and the number of vanes 122 formed in the rotor 12 are the same, one or three or more may be formed.
- the second sealing material 14 attached to the vane 122 has a check valve function for opening and closing the flow path 126 formed in the vane 122. It is not limited. When the rotor 12 rotates in the normal rotation direction N relative to the cylindrical chamber 111 of the case 11, the flow path 126 formed in the vane 122 is blocked, and the rotor 12 is relatively positioned relative to the cylindrical chamber 111 of the case 11. A check valve that opens the flow path 126 formed in the vane 122 when rotated in the reverse direction R may be provided separately from the second seal member 14.
- the vane 122 is formed with the flow passage 126 penetrating the both side surfaces 127a and 127b of the vane 122 along the rotation direction of the rotor 12.
- the present invention is not limited to this.
- a flow path that penetrates both side surfaces of the partition part 115 along the rotation direction of the rotor 12 may be formed in the partition part 115.
- the flow path formed in the partition portion 115 is blocked, and the rotor 12 moves relative to the cylindrical chamber 111 of the case 11.
- a check valve that opens the flow path formed in the partition 115 is provided.
- the first seal member 13 has the same shape as the second seal member 14, that is, a bottom having a width longer than the circumferential width of the outer peripheral edge of the partition 115, and the bottom A first leg portion having a width longer than a radial width of the flow path formed in the partition portion 115, and integrally formed at the other end portion of the bottom portion. It is good also as a shape which has the 2nd leg part which has a width shorter than the radial direction width
- the first seal member 13 may have a function as a check valve that separates the second leg portion from the other side surface of the partition portion 115 and opens the flow path formed in the partition portion 115. Good.
- the second sealing material 14 can be used as long as the gap between the tip surface 125 of the vane 122 and the side wall surface 114 of the cylindrical chamber 111 of the case 11 can be closed. Any shape is acceptable.
- a strong braking torque is generated when the rotor 12 rotates in the normal rotation direction N relative to the cylindrical chamber 111 of the case 11, and the rotor 12 is applied to the cylindrical chamber 111 of the case 11.
- a so-called unidirectional rotary damper that generates a weak braking torque when rotating in the reverse direction R is taken as an example.
- the present invention is not limited to this.
- the present invention is also applicable to a so-called bidirectional rotary damper that generates a strong braking torque in both the forward direction N and the reverse direction R.
- the flow passage 126 is omitted from the vane 122 of the rotor 12.
- the second sealing material 14 may be any material that can block the gap between the tip end surface 125 of the vane 122 and the side wall surface 114 of the cylindrical chamber 111 of the case 11.
- the rotary damper 1 according to the present embodiment can be widely applied to seat seats with a reclining function used in, for example, automobiles, railway vehicles, airplanes, ships, and the like.
- the present invention can be widely applied to devices other than a seat with a reclining function as long as it is necessary to brake the rotational movement of a rotating body that rotates in both directions in one direction.
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Abstract
Description
一端が開口し、前記粘性流体が充填された円筒室を有するケースと、
前記円筒室内に、前記円筒室に対して相対的に回転可能に収容されたロータと、
前記円筒室の開口側に取り付けられ、前記ロータを前記粘性流体とともに前記円筒室内に封じ込む蓋と、を備え、
前記ロータは、
円筒状のロータ本体と、
前記ロータ本体の外周面から径方向外方へ突出し、先端面が前記円筒室の側壁面と近接して、前記円筒室を仕切るベーンと、を有し、
前記ケースは、
前記円筒室の側壁面から径方向内方に突出し、先端面が前記ロータ本体の外周面と近接して、前記円筒室を仕切る仕切り部と、
前記円筒室の開口側の側壁面に形成された雌ネジ部と、を有し、
前記蓋は、
前記蓋の外周面に形成され、前記円筒室の開口側の側壁面に形成された雌ネジ部と螺合する雄ネジ部を有し、
前記蓋の裏面と前記ベーンの当該蓋の裏面に対向する面との隙間、および前記蓋の裏面と前記仕切り部の当該蓋の裏面に対向する面との隙間の少なくとも一方は、
前記粘性流体の移動を制限する流路として機能し、かつ前記蓋の前記円筒室へのねじ込み量によって調整可能である。
Claims (7)
- 粘性流体の移動を制限することにより、加えられた回転力に対して制動トルクを発生させるロータリダンパであって、
一端が開口し、前記粘性流体が充填された円筒室を有するケースと、
前記円筒室内に、前記円筒室に対して相対的に回転可能に収容されたロータと、
前記円筒室の開口側に取り付けられ、前記ロータを前記粘性流体とともに前記円筒室内に封じ込む蓋と、を備え、
前記ロータは、
円筒状のロータ本体と、
前記ロータ本体の外周面から径方向外方へ突出し、先端面が前記円筒室の側壁面と近接して、前記円筒室を仕切るベーンと、を有し、
前記ケースは、
前記円筒室の側壁面から径方向内方に突出し、先端面が前記ロータ本体の外周面と近接して、前記円筒室を仕切る仕切り部と、
前記円筒室の開口側の側壁面に形成された雌ネジ部と、を有し、
前記蓋は、
前記蓋の外周面に形成され、前記円筒室の開口側の側壁面に形成された雌ネジ部と螺合する雄ネジ部を有し、
前記蓋の裏面と前記ベーンの当該蓋の裏面に対向する面との隙間、および前記蓋の裏面と前記仕切り部の当該蓋の裏面に対向する面との隙間の少なくとも一方は、
前記粘性流体の移動を制限する流路として機能し、かつ前記蓋の前記円筒室へのねじ込み量によって調整可能である
ことを特徴とするロータリダンパ。 - 請求項1に記載のロータリダンパであって、
前記仕切り部の先端面と前記ロータ本体の外周面との隙間を塞ぐ第一シール材をさらに備える
ことを特徴とするロータリダンパ。 - 請求項1または2に記載のロータリダンパであって、
前記ベーンの先端面と前記円筒室の側壁面との隙間を塞ぐ第二シール材をさらに備える
ことを特徴とするロータリダンパ。 - 請求項2に記載のロータリダンパであって、
前記仕切り部に形成され、前記ロータの回転方向に沿って当該仕切り部の両側面間を貫く流路と、
前記ロータが前記円筒室に対して相対的に正転方向に回転した場合に、前記仕切り部の流路を塞ぎ、前記ロータが前記円筒室に対して相対的に反転方向に回転した場合に、前記仕切り部の流路を解放する第一の逆止弁と、をさらに備え、
前記第一の逆止弁は、
前記第一のシール材と一体的に形成されている
ことを特徴とするロータリダンパ。 - 請求項3に記載のロータリダンパであって、
前記ベーンに形成され、前記ロータの回転方向に沿って当該ベーンの両側面間を貫く流路と、
前記ロータが前記円筒室に対して相対的に正転方向に回転した場合に、前記ベーンの流路を塞ぎ、前記ロータが前記円筒室に対して相対的に反転方向に回転した場合に、前記ベーンの流路を解放する第二の逆止弁と、をさらに備え、
前記第二の逆止弁は、
前記第二のシール材と一体的に形成されている
ことを特徴とするロータリダンパ。 - 請求項1、2、3または5に記載にロータリダンパであって、
前記仕切り部に形成され、前記ロータの回転方向に沿って当該仕切り部の両側面間を貫く流路と、
前記ロータが前記円筒室に対して相対的に正転方向に回転した場合に、前記仕切り部の流路を塞ぎ、前記ロータが前記円筒室に対して相対的に反転方向に回転した場合に、前記仕切り部の流路を解放する第一の逆止弁と、をさらに備える
ことを特徴とするロータリダンパ。 - 請求項1ないし4のいずれか一項に記載にロータリダンパであって、
前記ベーンに形成され、前記ロータの回転方向に沿って当該ベーンの両側面間を貫く流路と、
前記ロータが前記円筒室に対して相対的に正転方向に回転した場合に、前記ベーンの流路を塞ぎ、前記ロータが前記円筒室に対して相対的に反転方向に回転した場合に、前記ベーンの流路を解放する第二の逆止弁と、をさらに備える
ことを特徴とするロータリダンパ。
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JP7075749B2 (ja) * | 2017-12-08 | 2022-05-26 | オイレス工業株式会社 | ダンパ |
CN108869820B (zh) * | 2018-05-29 | 2023-09-22 | 北科阀门制造有限公司 | 一种智能省电恒流阀、恒流阀控制系统及控制方法 |
CN109630611A (zh) * | 2019-01-14 | 2019-04-16 | 深圳市乾行达科技有限公司 | 旋转缓冲装置及转动副机构 |
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JP7346132B2 (ja) * | 2019-07-29 | 2023-09-19 | ニデックインスツルメンツ株式会社 | 流体ダンパ装置 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0432A (ja) * | 1990-01-10 | 1992-01-06 | Enidain Kk | 回転ショックアブソーバー |
JP2002266922A (ja) * | 2001-03-12 | 2002-09-18 | Tok Bearing Co Ltd | 回転ダンパ |
JP2003287076A (ja) * | 2002-03-28 | 2003-10-10 | Tok Bearing Co Ltd | 回転ダンパー |
WO2012141242A1 (ja) * | 2011-04-12 | 2012-10-18 | 株式会社ソミック石川 | ロータリーダンパ |
JP2014190502A (ja) * | 2013-03-28 | 2014-10-06 | Oiles Ind Co Ltd | ロータリダンパ |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0136299B1 (en) * | 1983-02-08 | 1987-05-27 | Horstman Defence Systems Limited | Hydraulic damper |
GB2246185B (en) * | 1990-05-23 | 1994-03-23 | Sugatsune Kogyo | Damper for foldable bed and the like |
JP2581655B2 (ja) * | 1991-03-08 | 1997-02-12 | トックベアリング株式会社 | 高トルク用ダンパ |
US5301775A (en) * | 1993-06-29 | 1994-04-12 | Illinois Tool Works Inc. | Adjustable high torque damper device |
JP3053156B2 (ja) | 1994-04-28 | 2000-06-19 | 日立粉末冶金株式会社 | 流体圧ダンパ |
JP2916108B2 (ja) * | 1995-12-28 | 1999-07-05 | トックベアリング株式会社 | トルク調整機能付き回転ダンパ |
US6318522B1 (en) * | 1999-06-04 | 2001-11-20 | Delphi Technologies, Inc. | Rotary damper with magnetic seals |
JP4582512B2 (ja) * | 2000-07-19 | 2010-11-17 | トックベアリング株式会社 | 回転ダンパ |
JP4573190B2 (ja) * | 2001-06-04 | 2010-11-04 | トックベアリング株式会社 | 回転ダンパ |
CN1240952C (zh) * | 2002-01-23 | 2006-02-08 | 株式会社三协精机制作所 | 使用粘性流体的阻尼器装置及其制造方法 |
JP3978340B2 (ja) * | 2002-01-23 | 2007-09-19 | 日本電産サンキョー株式会社 | ダンパ装置 |
JP4462887B2 (ja) * | 2003-10-06 | 2010-05-12 | トックベアリング株式会社 | 回転ダンパ |
DE102004032172A1 (de) * | 2004-07-02 | 2006-01-19 | Suspa Holding Gmbh | Drehdämpfer |
JP2006300088A (ja) * | 2005-04-15 | 2006-11-02 | Somic Ishikawa Inc | ロータリーダンパ |
JP2007198444A (ja) * | 2006-01-24 | 2007-08-09 | Fuji Latex Kk | 回転ダンパ−装置 |
JP4841290B2 (ja) * | 2006-03-31 | 2011-12-21 | 株式会社ニフコ | ロータリーダンパーの破壊防止機構 |
CN201265619Y (zh) * | 2008-09-27 | 2009-07-01 | 翟羽倬 | 一种单向旋转缓冲器 |
JP5702208B2 (ja) * | 2011-03-31 | 2015-04-15 | オイレス工業株式会社 | ロータリダンパ |
JP5341260B2 (ja) * | 2011-03-31 | 2013-11-13 | スガツネ工業株式会社 | 回転ダンパ |
US9027979B2 (en) * | 2011-04-12 | 2015-05-12 | Kabushiki Kaisha Somic Ishikawa | Rotary damper and opening and closing mechanism for a vehicle door |
JP2013002539A (ja) * | 2011-06-15 | 2013-01-07 | Nifco Inc | 回転ダンパ |
JP5760812B2 (ja) * | 2011-07-28 | 2015-08-12 | オイレス工業株式会社 | トラックのテールゲート用の回転減速装置 |
-
2014
- 2014-11-11 JP JP2014229354A patent/JP6480155B2/ja active Active
-
2015
- 2015-11-06 TW TW104136672A patent/TWI673444B/zh active
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- 2015-11-06 CA CA2964056A patent/CA2964056C/en active Active
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- 2015-11-06 WO PCT/JP2015/081376 patent/WO2016076234A1/ja active Application Filing
- 2015-11-06 EP EP15859799.7A patent/EP3220004B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0432A (ja) * | 1990-01-10 | 1992-01-06 | Enidain Kk | 回転ショックアブソーバー |
JP2002266922A (ja) * | 2001-03-12 | 2002-09-18 | Tok Bearing Co Ltd | 回転ダンパ |
JP2003287076A (ja) * | 2002-03-28 | 2003-10-10 | Tok Bearing Co Ltd | 回転ダンパー |
WO2012141242A1 (ja) * | 2011-04-12 | 2012-10-18 | 株式会社ソミック石川 | ロータリーダンパ |
JP2014190502A (ja) * | 2013-03-28 | 2014-10-06 | Oiles Ind Co Ltd | ロータリダンパ |
Non-Patent Citations (1)
Title |
---|
See also references of EP3220004A4 * |
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