WO2021235129A1 - ロータリダンパ - Google Patents

ロータリダンパ Download PDF

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Publication number
WO2021235129A1
WO2021235129A1 PCT/JP2021/014901 JP2021014901W WO2021235129A1 WO 2021235129 A1 WO2021235129 A1 WO 2021235129A1 JP 2021014901 W JP2021014901 W JP 2021014901W WO 2021235129 A1 WO2021235129 A1 WO 2021235129A1
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WO
WIPO (PCT)
Prior art keywords
housing
rotary damper
rotation characteristic
rotation
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/014901
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English (en)
French (fr)
Japanese (ja)
Inventor
一正 中屋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Somic Management Holdings Inc
Original Assignee
Somic Management Holdings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Somic Management Holdings Inc filed Critical Somic Management Holdings Inc
Priority to US17/997,617 priority Critical patent/US12146546B2/en
Priority to DE112021002808.1T priority patent/DE112021002808T5/de
Priority to CN202180023064.1A priority patent/CN115380177A/zh
Publication of WO2021235129A1 publication Critical patent/WO2021235129A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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 used as a damping device for kinetic energy in a rotating mechanism in a four-wheeled or two-wheeled self-propelled vehicle or industrial machinery.
  • a rotary damper has been used as a damping device for kinetic energy in a rotating mechanism.
  • a partition is formed in four operating chambers in the housing by two partition walls provided in the housing and two vanes provided in a feather shape on a shaft rotating in the housing.
  • the rotary damper is disclosed.
  • the present invention has been made to address the above problems, and an object of the present invention is to provide a rotary damper that can be easily changed in specifications and can be economically improved by continuing to use the conventional rotary damper. There is something in it.
  • the feature of the present invention is to have a cylindrical inner chamber for liquid-tightly accommodating the fluid, and to be formed in the inner chamber in the shape of a wall along the radial direction in the circumferential direction of the fluid.
  • At least two private chambers whose volume increases or decreases depending on the direction of rotation of the movable vane, a rotation characteristic regulator that regulates the rotation characteristics of the rotor using a fluid, and a rotation characteristic regulator provided outside the housing.
  • the rotation characteristic regulator and the rotation characteristic regulator having a first ruler connecting passage for circulating the fluid to the rotation characteristic regulator are provided, and the housing is provided in the at least two private chambers.
  • the rotation characteristic defining unit has a first external communication passage that extends from at least one of the private chambers and opens to the outer surface of the housing to allow the fluid to flow. It is detachably connected to the external passage.
  • the rotary damper is a first external connection in which the first ruler passage in the rotation characteristic ruler equipped with the rotation characteristic ruler is connected to the inner chamber in the housing. Since it is detachably connected to the passage, the specifications of the rotation characteristics can be easily changed by replacing it with a rotation characteristic regulation unit having a desired rotation characteristic regulator, and the conventional housing and the like can be changed. The use of rotary damper parts can be continued and economic efficiency can be improved. Further, the rotary damper according to the present invention can easily provide a rotation characteristic regulator having a size that cannot be provided in the housing.
  • the characteristics of the rotation of the rotor include the rotation direction at the time of rotation of the rotor, the damping characteristic of the torque, the compensation characteristic of the volume change due to the temperature change of the fluid, or the permission / rejection characteristic of the rotation of the rotor itself.
  • the rotation characteristic regulator there are various valves such as a one-way valve, a throttle valve, a relief valve or a linear solenoid valve, an accumulator and the like.
  • the rotation characteristic defining unit is removable from the housing.
  • the rotation characteristic defining unit is removable from the housing, the rotation characteristics of the rotor can be easily changed and the housing can be changed. It is possible to continue to use the components of the conventional rotary damper such as, and the economy can be improved.
  • the housing has a housing-side connecting portion formed in a flat surface on a part of the outer surface, and the housing-side connecting portion has a first external communication passage.
  • the rotation characteristic defining unit has a unit-side connecting portion that is formed in a flat surface shape on a part of the outer surface and is arranged to face the housing-side connecting portion, and the unit has a first unit-side connecting portion.
  • the regular passage of the standard is open.
  • the housing-side connecting portion and the unit-side connecting portion which are the connecting surfaces of the housing and the rotation characteristic regulator, are formed in a flat surface shape with each other. Therefore, it is possible to easily manufacture each connecting portion in a liquid-tight manner, and it is possible to facilitate maintenance and maintenance of the liquid-tightness in the connecting portion.
  • the rotation characteristic defining unit is provided at a position physically separated from the housing.
  • the rotary damper is installed in a narrow space of the housing because the rotation characteristic defining unit is provided at a position physically separated from the housing.
  • the housing or the rotation characteristic specifying unit can be installed in a place where maintenance is easy, and the variation of the installation of the rotary damper can be increased.
  • the housing extends from the other private chamber of the at least two private chambers and opens to the outer surface of the housing to allow the fluid to flow.
  • the rotation characteristic defining unit has a passage, and the rotation characteristic defining unit has a second defining device connecting passage for circulating a fluid with respect to the rotation characteristic defining device, and the second defining device connecting passage is the second external connecting passage. It is detachably connected to the passage.
  • the rotary damper is provided with a second external communication passage in which the housing extends from the other private chamber of at least two private chambers, and the rotation characteristic defining unit is a second. Since it is provided with the regulation device connecting passage, the rotation characteristics can be changed by using the fluid flowing between the two private chambers, and the variation of the change of the rotation characteristics can be increased.
  • the rotation characteristic defining unit has a plurality of rotation characteristic regulators, and a plurality of first regulators corresponding to each of the plurality of rotation characteristic regulators. It has a passage, and the housing has a first external communication passage formed for each of a plurality of first ruler communication passages.
  • the rotary damper has a rotation characteristic defining unit having a plurality of rotation characteristic defining devices and a plurality of first defining device communication passages, and a plurality of housings. Since the first external communication passage is formed for each of the first ruler communication passages, it is possible to create specifications for a wide variety of rotation characteristics.
  • the plurality of rotation characteristic regulators may change the same type of rotation characteristics from each other, or may change the rotation characteristics of different types from each other.
  • the rotation characteristic defining unit is provided with the plurality of types of rotation characteristic defining devices along the axial direction of the inner chamber.
  • the rotary damper is provided with a plurality of types of rotation characteristic regulators in the rotation characteristic regulation unit along the axial direction of the inner chamber.
  • the rotation characteristic regulator can be efficiently arranged to suppress the increase in size of the configuration.
  • FIG. 1 It is a perspective view which shows schematic about the whole structure of the rotary damper which concerns on this invention. It is an disassembly assembly perspective view which shows by disassembling the rotation characteristic specification unit from the housing of the rotary damper shown in FIG. It is a side view which shows the outline of the appearance structure of the rotary damper shown in FIG. It is a rear view which shows the outline of the appearance structure of the rotary damper shown in FIG. It is sectional drawing which shows the outline of the internal structure of a rotary damper seen from line 5-5 of FIG. It is sectional drawing which shows the outline of the internal structure of a rotary damper seen from line 6-6 of FIG. It is sectional drawing which shows the outline of the internal structure of a rotary damper seen from line 7-7 of FIG.
  • FIGS. 5 to 8 are cross-sectional views showing an operating state in which the rotor of the rotary damper shown in FIGS. 5 to 8 rotates counterclockwise in the drawing. It is a perspective view which shows schematic about the whole structure of the rotary damper which concerns on the modification of this invention.
  • FIG. 1 is a perspective view schematically showing the overall configuration of the rotary damper 100.
  • FIG. 2 is an disassembled assembly perspective view showing the rotation characteristic defining unit 140 disassembled from the housing 101 of the rotary damper 100 shown in FIG.
  • FIG. 3 is a side view showing an outline of the external configuration of the rotary damper 100 shown in FIG. 1.
  • FIG. 4 is a rear view showing an outline of the external configuration of the rotary damper 100 shown in FIG. 1.
  • the rotary damper 100 is a damping device that generates a damping force only in one of the two rotational directions of the shaft body 131, clockwise and counterclockwise.
  • a hinge of a door (not shown). It can function as a door closer by being attached to the side part.
  • the rotary damper 100 includes a housing 101.
  • the housing 101 is a component that constitutes the housing of the rotary damper 100 while rotatably holding the rotor 130, and is made of various resin materials such as aluminum material, iron material, zinc material, and polyamide resin.
  • the housing 101 is mainly composed of one housing body 102 and two lids 126 and 127.
  • the housing body 102 is a component that houses the movable vane 132 and the fluid 170 of the rotor 130, which will be described later, and to which the rotation characteristic defining unit 140 is attached, and is formed in a cylindrical shape. More specifically, the housing main body 102 is formed with an inner chamber 103 and a fixed vane 104, respectively, and a housing-side connecting portion 120 and a fixed portion 125 are formed on the outside, respectively.
  • the inner chamber 103 is a space for liquidally accommodating the fluid 170 together with the movable vane 132 of the rotor 130, and has a substantially cylindrical shape penetrating the housing body 102 in the axial direction. It is composed of space.
  • a fixed vane 104 is formed in the inner chamber 103, and four first external communication passages 110, 111, 112, 113 and three second external communication passages 114, 115, 116 are opened, respectively. There is.
  • the fixed vane 104 is a wall-shaped portion that partitions the inside of the inner chamber 103 together with the rotor 130 to form the private chamber R1 and the private chamber R2, and is inward from the inner wall surface of the inner chamber 103 along the axial direction of the housing body 102. It is formed by projecting in a convex shape. That is, the fixed vane 104 is integrally formed with the housing body 102.
  • the fixed vane 104 is formed in a groove shape in which three outer edge portions facing each of the two lid bodies 126, 127 and the shaft body 131 of the rotor 130 are recessed in a concave shape, and the seal body 105 is formed in each of these grooves. Is fitted.
  • the seal body 105 is a component for ensuring the liquidtightness between the private chamber R1 and the private chamber R2 formed in the inner chamber 103, and is made of various rubber materials such as nitrile rubber, hydrogenated nitrile rubber, and fluororubber.
  • the elastic material of No. 1 is formed in a C shape in a side view.
  • the seal body 105 is attached so as to project from the outer edge portion of the fixing vane 104 so as to be in close contact with the inner side surface of the lid bodies 126 and 127 and the outer peripheral surface of the shaft body 131 of the rotor 130 in a slidable state.
  • the private room R1 which is one of the private room R1 and the private room R2 constituting the inner room 103 and the outer surface facing the outside of the housing body 102 are mutually connected with each other. It is a passage for communicating and circulating the fluid 170. That is, one end of each of the first external communication passages 110, 111, 112, 113 opens to the inner peripheral surface of the inner chamber 103 in the private chamber R1, and the other end is connected to the housing side connecting portion 120. Each is open. In this case, the four first external communication passages 110, 111, 112, 113 are formed side by side along the axial direction of the inner chamber 103.
  • the first external communication passage 110 is a passage for circulating the fluid body 170 to and from the rotation characteristic regulator 160.
  • the first external communication passage 111 is a passage for circulating the fluid body 170 with the rotation characteristic regulator 161.
  • the first external communication passage 112 is a passage for circulating the fluid body 170 with the rotation characteristic regulator 162.
  • the first external communication passage 113 is a passage for circulating the fluid body 170 with the rotation characteristic regulator 163.
  • the three second external communication passages 114, 115, 116 communicate with each other the private room R2 which is the other of the private room R1 and the private room R2 constituting the inner room 103 and the outer surface facing the outside of the housing body 102. It is a passage for circulating the fluid 170. That is, one end of each of the second external passages 114, 115, 116 opens to the inner peripheral surface of the inner chamber 103 in the private room R2, and the other end opens to the housing side connecting portion 120, respectively. doing. In this case, the three second external communication passages 114, 115, 116 are formed side by side along the axial direction of the inner chamber 103.
  • the second external communication passage 114 is a passage for circulating the fluid body 170 to and from the rotation characteristic regulator 160.
  • the second external communication passage 115 is a passage for circulating the fluid body 170 to and from the rotation characteristic regulator 161.
  • the second external communication passage 116 is a passage for circulating the fluid body 170 to and from the rotation characteristic regulator 163.
  • the housing-side connecting portion 120 is a portion to which the rotation characteristic defining unit 140 is attached in a detachable state, and is formed in a flat surface on the outer peripheral surface of the housing main body 102.
  • the housing-side connecting portion 120 is formed in a rectangular shape in a plan view extending along the axial direction of the housing 101.
  • the housing-side connecting portion 120 is open to the other ends of the first external communication passages 110, 111, 112, 113 and the second external communication passages 114, 115, 116, respectively.
  • a ring shape recessed in a ring shape is formed on the outside of each opening of the first external communication passages 110, 111, 112, 113 and the second external communication passages 114, 115, 116 in the housing side connecting portion 120.
  • Each of the recesses 121 is formed, and a sealing material 122 such as an O-ring is fitted in each of these ring-shaped recesses 121. In FIG. 2, the sealing material 122 is not shown.
  • mounting holes 123 are formed in the housing side connecting portion 120, respectively. These mounting holes 123 are portions for mounting the rotation characteristic defining unit 140, and are composed of bottomed cylindrical holes in which female screws into which bolts 124 are screw-fitted are formed. These mounting holes 123 are formed side by side along the axial direction of the housing body 102.
  • the fixing portion 125 is a portion for mounting the rotary damper 100 to an object to be mounted (not shown) of the rotary damper 100, and is on the outer peripheral surface of the housing body 102 on the opposite side (lower side of the drawing) to the housing side connecting portion 120. It is composed of four cylinders that project downward in the figure. In this case, a female screw is formed on the inner peripheral surface of each fixing portion 125 to which a bolt (not shown) used for mounting on the object to be mounted is screw-fitted.
  • the two lids 126 and 127 are parts for closing the openings at both ends of the housing body 102 and supporting the rotor 130, and the outer peripheral portions of the cylindrical rotor support portions 126a and 127a are formed. It is formed in the shape of a flat plate ring overhanging like a flange.
  • the rotor support portions 126a and 127a are portions that support both ends of the shaft body 131 of the rotor 130 in a rotatable state, and liquid the shaft body 131 of the rotor 130 on the inner peripheral portion via a sealing material such as packing. I strongly support it.
  • These lids 126 and 127 are attached to both ends of the housing body 102 via bolts, respectively.
  • the rotor 130 is arranged in the inner chamber 103 of the housing 101 and divides the inner chamber 103 into two spaces, the private chamber R1 and the private chamber R2, respectively, and by rotating in the inner chamber 103, these private chambers R1 It is a component for increasing or decreasing the volume of each private room of the private room R2, and is mainly composed of a shaft body 131 and a movable vane 132.
  • the shaft body 131 is a cylindrical portion that supports the movable vane 132, and is made of various resin materials such as aluminum material, iron material, zinc material, and polyamide resin. Both ends of the shaft body 131 are slidably supported by rotor support portions 126a and 127a, respectively.
  • the movable vane 132 is a component for liquidally increasing or decreasing the volume of each of these spaces while partitioning the inside of the inner chamber 103 into a plurality of spaces, and is a plate extending in the radial direction of the shaft body 131 (inner chamber 103). Each is composed of shapes.
  • the movable vane 132 is formed in a groove shape in which three outer edge portions facing the inner peripheral surfaces of the two lid bodies 126, 127 and the inner chamber 103 are recessed in a concave shape, respectively, and a seal body is formed in each of these grooves.
  • a seal body 133 similar to 105 is fitted.
  • the movable vane 132 cooperates with the fixed vane 104 to form two spaces, the private room R1 and the private room R2, in the inner chamber 103 in a liquid-tight manner. That is, in the inner chamber 103, the private chamber R1 and the private chamber R2 are formed adjacent to each other along the circumferential direction via the movable vane 132 and the fixed vane 104, respectively.
  • the rotation characteristic defining unit 140 is a device for defining the rotation characteristics of the rotor 130, and is mainly configured to include a unit main body 141 and rotation characteristic regulators 160, 161, 162, 163, respectively.
  • the unit main body 141 is a component that holds the rotation characteristic regulators 160, 161, 162, and 163, respectively, and forms a unit-side connecting portion 142, and various resins such as aluminum material, iron material, zinc material, and polyamide resin.
  • the material is formed in a block shape.
  • the unit main body 141 is formed in a rectangular shape in a plan view extending along the axial direction of the housing 101.
  • the unit main body 141 has a unit-side connecting portion 142 formed on the outside, and three mounting holes 143 and four ruler accommodating portions 145, 146, 147, 148, and four first ruler series inside. Passages 150, 151, 152, 153 and three second ruler communication passages 154, 155, 156 are formed, respectively.
  • the unit-side connecting portion 142 is a portion that is detachably attached to the housing-side connecting portion 120, and is formed in a flat surface on the outer peripheral surface of the unit main body 141.
  • the unit-side connecting portion 142 is formed in a rectangular shape in a plan view extending along the longitudinal direction of the unit main body 141.
  • the unit-side connecting portion 142 is opened at the other end of each of the four first ruler communication passages 150, 151, 152, 153 and the three second ruler communication passages 154, 155, 156, respectively. ing. Further, three mounting holes 143 are opened in the unit side connecting portion 142, respectively.
  • the three mounting holes 143 are portions for passing through the bolts 124 that are screw-fitted into the mounting holes 143 when the rotation characteristic defining unit 140 is mounted on the housing side connecting portion 120 in the housing 101, and the unit main body 141 is shown in the figure. It is composed of through holes that penetrate in the vertical direction. These mounting holes 143 are formed side by side along the longitudinal direction of the unit main body 141.
  • the four regulator accommodating portions 145, 146, 147, and 148 are portions that hold the four rotation characteristic regulators 160, 161, 162, and 163 in a detachable state, respectively, and are units. It is formed in the shape of a horizontal hole opened on the side surface of the main body 141. These ruler accommodating portions 145, 146, 147, 148 are formed side by side along the longitudinal direction of the unit main body 141.
  • the four first ruler communication passages 150, 151, 152, 153 are the rotation characteristic ruler 160, 161, 162, 163 and the unit main body, which are held in the ruler accommodating portions 145, 146, 147, 148, respectively. It is a passage for allowing the fluid 170 to flow by communicating with the outer surface of 141 facing the outside. That is, in the first ruler communication passages 150, 151, 152, 153, one end thereof opens to the ruler accommodating portions 145, 146, 147, 148, respectively, and the other end is a unit side connecting portion. It is open to 142 respectively. In this case, the four first ruler communication passages 150, 151, 152, and 153 are formed side by side along the longitudinal direction of the unit main body 141.
  • the first regulator communication passage 150 is a passage connected to the first external communication passage 110 to allow the fluid 170 to flow between the rotation characteristic regulator 160 and the rotation characteristic regulator 160.
  • the first regulator communication passage 151 is a passage connected to the first external communication passage 111 to allow the fluid 170 to flow between the rotation characteristic regulator 161 and the rotation characteristic regulator 161.
  • the first ruler communication passage 152 is a passage connected to the first external communication passage 112 to allow the fluid 170 to flow between the rotation characteristic control device 162 and the rotation characteristic control device 162.
  • the first regulator communication passage 153 is a passage connected to the first external communication passage 113 to allow the fluid 170 to flow between the rotation characteristic regulator 163 and the rotation characteristic regulator 163.
  • the three second ruler communication passages 154, 155, 156 are rotated to be held in the ruler accommodating portions 145, 146, 148 separately from the three first ruler communication passages 150, 151, 153, respectively. It is a passage for allowing the fluid 170 to flow by communicating the characteristic regulators 160, 161, 163 and the outer surface of the unit main body 141 facing the outside with each other. That is, in the second ruler communication passages 154, 155, 156, one end thereof opens to the ruler accommodating portion 145, 146, 148, and the other end opens to the unit side connecting portion 142, respectively. doing. In this case, the three second ruler communication passages 154, 155, 156 are formed side by side along the longitudinal direction of the unit main body 141.
  • the second regulator connecting passage 154 is a passage connected to the second external connecting passage 114 to allow the fluid 170 to flow between the rotation characteristic regulator 160 and the rotating characteristic regulator 160.
  • the second ruler communication passage 155 is a passage connected to the second external communication passage 115 to allow the fluid 170 to flow between the rotation characteristic control device 161 and the rotation characteristic control device 161.
  • the second ruler communication passage 156 is a passage connected to the second external communication passage 116 to allow the fluid 170 to flow between the rotation characteristic control device 163 and the rotation characteristic control device 163.
  • the rotation characteristic regulators 160, 161, 162, 163 are instruments that regulate the rotation characteristics of the rotor 130 using the fluid 170, and are housed in the regulator housing portions 145, 146, 147, and 148, respectively. ing. Specifically, the rotation characteristic regulator 160 is composed of a one-way valve that allows the fluid 170 to flow from one side to the other. In the present embodiment, the rotation characteristic regulator 160 is housed in the regulator accommodating portion 145, and the fluid 170 flows only from the first regulator communication passage 150 side to the second regulator communication passage 154 side. Let me.
  • the rotation characteristic regulator 161 is for releasing the pressure in the private chamber R2 when the pressure in the private chamber R2 in the inner chamber 103 is equal to or higher than the predetermined value to the private chamber R1 and keeping the pressure in the private chamber R2 below the predetermined value. It consists of a relief valve. In the present embodiment, the rotation characteristic regulator 161 is housed in the regulator accommodating portion 146 and is the maximum in the private room R2 via the second regulator communication passage 155 and the first regulator communication passage 151, respectively. Specify the pressure.
  • the rotation characteristic regulator 162 is composed of an accumulator that compensates for a volume change due to expansion or contraction of the fluid 170 in the inner chamber 103 due to a temperature change.
  • the rotation characteristic regulator 162 is housed in the regulator housing portion 147 and communicates with the private room R1 via the first ruler communication passage 152 to form the fluid 170 in the inner chamber 103. Compensate for pressure changes.
  • the rotation characteristic regulator 163 is composed of a linear solenoid valve capable of variably controlling the flow rate of the fluid body 170.
  • the rotation characteristic regulator 163 is housed in the ruler accommodating portion 148 and is a mutual fluid 170 between the first ruler communication passage 153 and the second ruler communication passage 156. Variable control of the flow rate.
  • the operation of the linear solenoid valve constituting the rotation characteristic regulator 163 is controlled by a control device provided on the object to be mounted of the rotary damper 100.
  • the fluid body 170 is a substance for applying a damper function to the rotary damper 100 by imparting resistance to the movable vane 132 that rotates in the inner chamber 103, and is filled in the inner chamber 103.
  • the fluid 170 is composed of a liquid, gel-like or semi-solid substance having a viscosity and fluidity according to the specifications of the rotary damper 100. In this case, the viscosity of the fluid 170 is appropriately selected according to the specifications of the rotary damper 100.
  • the fluid 170 is composed of oil, for example, mineral oil, silicone oil, or the like.
  • the fluid 170 is shown by hatching in a broken line circle only in FIGS. 5 and 9.
  • the rotary damper 100 is attached to a hinge-side portion of the door (not shown) to generate a damping force when the flat door is closed.
  • the rotary damper 100 has a torsion spring unit 180 connected to one end (lower side in the drawing) of the shaft body 131 of the rotor 130.
  • the torsion spring unit 180 is an instrument for generating a rotational force for closing a door, and is configured to include a coil spring-shaped torsion spring 182 that generates a torsional torque in a bottomed cylindrical housing 181. ing.
  • the rotary damper 100 functions as a door closer by attaching the other end (upper side in the drawing) of the shaft body 131 of the rotor 130 to the hinge side portion of the door (not shown). Further, the rotary damper 100 is connected to an automatic door unit (not shown).
  • the automatic door unit is a mechanical device that releases the force applied to the door after opening the door by applying a force to the door when a person entering or leaving the room is detected.
  • This automatic door unit is electrically connected to the rotation characteristic regulator 163 (linear solenoid valve) in the rotary damper 100, and controls the operation of the rotation characteristic regulator 163.
  • the rotary damper 100 rotates the rotor 130 clockwise in the figure when the door is opened (see the thick dashed arrow). That is, in the rotary damper 100, the movable vane 132 rotates clockwise in the figure toward the left side surface of the fixed vane 104 in the figure.
  • the private chamber R1 is in a state of "outflow is possible” by the rotation characteristic regulator 160 (one-way valve) with respect to the private chamber R2, and “outflow is throttled” by the rotation characteristic regulator 163 (linear solenoid valve). It is possible without it. " Therefore, the fluid 170 in the private chamber R1 has the first external communication passage 110, the first regulator communication passage 150, and the rotation characteristic regulator according to the volume reduction of the private chamber R1 due to the clockwise rotation of the movable vane 132. It flows through 160, the second regulator communication passage 154, and the second external communication passage 114, respectively, and flows into the private room R2 (see the broken line arrow).
  • the fluid 170 in the private chamber R1 has the first external communication passage 113, the first ruler communication passage 153, and the times as the volume of the private room R1 decreases due to the clockwise rotation of the movable vane 132.
  • the dynamic characteristic regulator 163, the second regulator communication passage 156, and the second external communication passage 116 each flow and flow into the private room R2 (see the broken line arrow). In these cases, the rotary damper 160 does not generate a damping force.
  • the private chamber R2 is in a state of "outflow is not possible” by the rotation characteristic regulator 160 (one-way valve) with respect to the private chamber R1 and “outflow is throttled” by the rotation characteristic regulator 163 (linear solenoid valve). It is possible to attach it. " Therefore, the fluid 170 in the private chamber R2 has a second external communication passage 116, a second ruler communication passage 156, and a rotation characteristic definition according to the volume reduction of the private chamber R1 due to the counterclockwise rotation of the movable vane 132.
  • the vessel 163, the first defined vessel communication passage 153, and the first external communication passage 113 each flow and flow into the private room R1.
  • the rotation characteristic regulator 161 (relief valve) operates. ..
  • the rotation characteristic regulator 161 (relief valve) opens the valve when the pressure in the private chamber R2 rises during the rotation operation of the rotor 130, so that the second external communication passage 115, The pressure of the private room R2 is released to the private room R1 through the path of the second ruler communication passage 155, the rotation characteristic ruler 161 and the first ruler communication passage 151 and the first external communication passage 111.
  • the rotation characteristic regulator 162 (accumulator) increases or decreases due to a temperature change of the fluid 170
  • the rotation characteristic regulator 162 (accumulator) is inside the private room R1 via the first external communication passage 112 and the first regulator communication passage 152.
  • the fluid 170 of the above is absorbed by flowing in or out of the cylinder constituting the rotation characteristic regulator 162.
  • the user of the rotary damper 100 uses the fluid body 170 in the rotation characteristic regulator 163 (linear solenoid valve) with respect to the automatic door unit connected to the rotation characteristic regulator 163 (linear solenoid valve) of the rotary damper 100. It is possible to instruct to change the flow rate (valve opening) of. Thereby, the user can change the damping force of the rotary damper 100.
  • the user of the rotary damper 100 can change the maintenance or specifications of the rotary damper 100 by removing the rotation characteristic defining unit 140 from the housing 101. Specifically, the user can remove the rotation characteristic defining unit 140 from the housing main body 102 by loosening the bolt 124. As a result, the user can perform maintenance on the housing 101 and the rotation characteristic defining unit 140. Further, when changing the specifications of the rotary damper 100, the user is provided with at least one rotation characteristic regulator having different specifications for at least one of the rotation characteristic regulators 160, 161 and 162, 163. A rotation characteristic defining unit 140 is prepared.
  • the user attaches the maintenance-completed rotation characteristic specification unit 140, the new rotation characteristic specification unit 140 with the same specifications, or the rotation characteristic specification unit 140 with different specifications by tightening the bolt 124 to the housing body 102.
  • the rotary damper 100 can be maintained or changed in specifications.
  • the rotary damper 100 is the first rotation characteristic defining unit 140 provided with the rotation characteristic regulators 160, 161 and 162, 163, respectively.
  • the rotary damper 100 can easily provide rotation characteristic regulators 160, 161, 162, 163 having a size that cannot be provided in the housing 101.
  • the rotation characteristic defining unit 140 is configured to include four rotation characteristic defining devices 160, 161, 162, 163.
  • the rotation characteristic defining unit 140 may be selected so as to realize the required characteristics according to the specifications of the object to which the rotary damper 100 is attached.
  • the rotation characteristic defining unit 140 may include at least one rotation characteristic defining device that regulates the rotation of the rotor 130. Therefore, for example, the rotation characteristic defining unit 140 can be configured by omitting the rotation characteristic defining device 162 (accumulator) when the temperature compensation of the fluid body 170 is not required. Further, when the rotation characteristic defining unit 140 does not require strict control of the damping force, various throttle valves such as an orifice or a laminated valve can be used instead of the linear solenoid valve.
  • the rotary damper 100 is provided with only the rotation characteristic regulator 162 (accumulator), which does not need to communicate with the private room R1 and the private room R2 at the same time, the rotary damper 100 is the first.
  • the external communication passages 114, 115, 116 of 2 and the second accumulator communication passages 154, 155, 156 are unnecessary.
  • the rotary damper 100 is provided with a throttle valve such as an orifice or a laminated valve on the fixed vane 104 and / or the movable vane 132 to secure the flow of the fluid 170 between the private chamber R1 and the private chamber R2. There is a need.
  • the rotation characteristic regulator may be housed and held inside without projecting to the outside of the unit main body 141 like the rotation characteristic regulators 160 and 161. Like 163, it may be held in a state in which a part thereof protrudes from the outer surface of the unit main body 141.
  • the first external communication passages 110 to 113, the second external communication passages 114 to 116, the first ruler communication passages 150 to 153, and the second ruler connection passages 154 to 156 are , Rotation characteristic regulators 160 to 163 were provided respectively.
  • the first external communication passages 110 to 113, the second external communication passages 114 to 116, the first ruler communication passages 150 to 153, and the second ruler communication passages 154 to 156 have one rotation. It can also be shared with the characteristic regulator.
  • the rotation characteristic regulator 162 accumulator
  • a passage branching from one can be provided and shared with at least one of the first accumulator communication passages 150, 151, 153.
  • the rotation characteristic regulators 160, 161, 162, 163 have the rotation direction at the time of rotation of the rotor 130, the damping characteristic of the torque, and the compensation characteristic of the volume change due to the temperature change of the fluid body 170. , Or the permission / rejection characteristics of the rotation of the rotor 130 itself.
  • the rotation characteristic regulator 163 in the above embodiment selectively controls a state in which the flow of the fluid 170 is permitted and a state in which the flow of the fluid 170 is disabled by completely opening or closing the valve. be able to.
  • the rotation characteristic regulator has other than the rotation direction at the time of rotation of the rotor 130, the damping characteristic of the torque, the compensation characteristic of the volume change due to the temperature change of the fluid body 170, or the permission / rejection characteristic of the rotation of the rotor 130 itself. Of course, it may specify the characteristics.
  • the rotation characteristic regulators 160, 161, 162, 163 are arranged side by side in the axial direction of the inner chamber 103 in the housing 101 in the unit main body 141.
  • the rotation characteristic regulators 160, 161, 162, 163 can also be arranged side by side in the unit main body 141 in a direction other than the axial direction of the inner chamber 103 in the housing 101, for example, in a direction orthogonal to the coaxial line direction.
  • the rotary damper 100 is configured by directly attaching the rotation characteristic defining unit 140 to the housing 101.
  • the rotary damper 100 can also be connected to the housing 101 by providing the rotation characteristic defining unit 140 at a position physically separated from the housing 101.
  • the rotary damper 100 has the first external communication passages 110 to 113 on the housing 101 side, the second external communication passages 114 to 116, and the first regulator communication passages 150 to 153 on the rotation characteristic defining unit 140 side.
  • the second ruler connecting passages 154 to 156 are detachably connected to each other by the first side pipes 190, 191 and 192, 193 and the second side pipes 194, 195, 196 formed in a tubular shape.
  • the first side pipes 190, 191, 192, 193 and the second side pipes 194, 195, 196 may be made of a rigid rigid body that is not freely bent by a metal material or a resin material, or may be made of a resin material. It can also be configured in the form of a tube having flexibility that can be freely bent. According to this, the rotary damper 100 can be installed in a narrow space of the housing 101, or in a place where the housing 101 or the rotation characteristic defining unit 140 can be easily maintained, and there is a variation in the installation of the rotary damper 100. Can be increased.
  • the housing side connecting portion 120 and the unit side connecting portion 142 are each formed into a flat surface shape.
  • the housing-side connecting portion 120 and the unit-side connecting portion 142 may be formed in a shape other than the flat surface shape, for example, a convex shape and a concave shape that are fitted to each other.
  • the rotary damper 100 forms the inner chamber 103 in the two private chambers R1 and the private chamber R2.
  • the inner chamber 103 may be divided into at least two or more private chambers, and three or more private chambers may be formed. That is, the rotary damper 100 can form three or more private chambers in the inner chamber 103 by forming two or more movable vanes 132 and fixed vanes 104.
  • the rotary damper 100 is used as a door closer attached to the hinge portion of the door.
  • the rotary damper 100 can also be used as a damping device that is attached to the base end of a swing arm that supports the rear wheels of a two-wheeled self-propelled vehicle (motorcycle) so as to be able to move up and down, and attenuates kinetic energy when the rear wheels move up and down.
  • a two-wheeled self-propelled vehicle motorcycle
  • the rotary damper 100 is a place other than the swing arm in a two-wheel self-propelled vehicle (for example, a seat opening / closing mechanism), a vehicle other than a two-wheel self-propelled vehicle (suspension mechanism, a seat mechanism or opening / closing in a four-wheel self-propelled vehicle). It can be used by attaching to mechanical devices, electric devices, appliances or furniture other than doors) or self-propelled vehicles.
  • a two-wheel self-propelled vehicle for example, a seat opening / closing mechanism
  • a vehicle other than a two-wheel self-propelled vehicle suspension mechanism, a seat mechanism or opening / closing in a four-wheel self-propelled vehicle. It can be used by attaching to mechanical devices, electric devices, appliances or furniture other than doors) or self-propelled vehicles.
  • Rotation characteristic specification unit 141 ... Unit body, 142 ... Unit side connection part, 143 ... Mounting hole, 145, 146, 147, 148 ... Ruler housing part, 150, 151, 152, 153 ... 1st ruler passage, 154, 155, 156 ... 2nd ruler passage, 160,161,162,163 ... Rotation characteristic regulator, 170 ... fluid, 180 ... torsion spring unit, 181 ... housing, 182 ... torsion spring, 190,191,192,193 ... 1st side piping, 194,195,196 ... 2nd side piping.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
PCT/JP2021/014901 2020-05-19 2021-04-08 ロータリダンパ Ceased WO2021235129A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US17/997,617 US12146546B2 (en) 2020-05-19 2021-04-08 Rotary damper
DE112021002808.1T DE112021002808T5 (de) 2020-05-19 2021-04-08 Rotationsdämpfer
CN202180023064.1A CN115380177A (zh) 2020-05-19 2021-04-08 旋转阻尼器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020087493A JP2021181805A (ja) 2020-05-19 2020-05-19 ロータリダンパ
JP2020-087493 2020-05-19

Publications (1)

Publication Number Publication Date
WO2021235129A1 true WO2021235129A1 (ja) 2021-11-25

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PCT/JP2021/014901 Ceased WO2021235129A1 (ja) 2020-05-19 2021-04-08 ロータリダンパ

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Country Link
US (1) US12146546B2 (enExample)
JP (1) JP2021181805A (enExample)
CN (1) CN115380177A (enExample)
DE (1) DE112021002808T5 (enExample)
WO (1) WO2021235129A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7624206B2 (ja) 2021-03-20 2025-01-30 株式会社ソミックマネージメントホールディングス ダンパー装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02121645U (enExample) * 1989-03-17 1990-10-03
JPH03111395A (ja) * 1989-09-25 1991-05-13 Fujita Corp ロータリーダンパー及びクレーンモニターカメラ用の揺振制御装置
JPH05280568A (ja) * 1991-08-09 1993-10-26 Kayaba Ind Co Ltd ロータリダンパ
JPH10122287A (ja) * 1996-10-21 1998-05-12 Kayaba Ind Co Ltd ロータリダンパ
JP2007321961A (ja) * 2006-06-05 2007-12-13 Shiroki Corp ポンプ、ドアチェック装置及びダンパ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3626260B2 (ja) * 1995-08-31 2005-03-02 カヤバ工業株式会社 ロータリダンパ
JP3778668B2 (ja) 1997-09-08 2006-05-24 カヤバ工業株式会社 ロータリダンパ
JP3778708B2 (ja) * 1998-10-21 2006-05-24 カヤバ工業株式会社 ロータリダンパ
US8117716B2 (en) 2006-06-05 2012-02-21 Shiroki Kogyo Co., Ltd. One-way valve and door check apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02121645U (enExample) * 1989-03-17 1990-10-03
JPH03111395A (ja) * 1989-09-25 1991-05-13 Fujita Corp ロータリーダンパー及びクレーンモニターカメラ用の揺振制御装置
JPH05280568A (ja) * 1991-08-09 1993-10-26 Kayaba Ind Co Ltd ロータリダンパ
JPH10122287A (ja) * 1996-10-21 1998-05-12 Kayaba Ind Co Ltd ロータリダンパ
JP2007321961A (ja) * 2006-06-05 2007-12-13 Shiroki Corp ポンプ、ドアチェック装置及びダンパ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7624206B2 (ja) 2021-03-20 2025-01-30 株式会社ソミックマネージメントホールディングス ダンパー装置

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US12146546B2 (en) 2024-11-19
CN115380177A (zh) 2022-11-22
DE112021002808T5 (de) 2023-03-23
JP2021181805A (ja) 2021-11-25
US20230265904A1 (en) 2023-08-24

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