WO2018021355A1 - Mécanisme de maintien de position de rotation - Google Patents

Mécanisme de maintien de position de rotation Download PDF

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Publication number
WO2018021355A1
WO2018021355A1 PCT/JP2017/026934 JP2017026934W WO2018021355A1 WO 2018021355 A1 WO2018021355 A1 WO 2018021355A1 JP 2017026934 W JP2017026934 W JP 2017026934W WO 2018021355 A1 WO2018021355 A1 WO 2018021355A1
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WO
WIPO (PCT)
Prior art keywords
pair
holding mechanism
position holding
shape
rotation
Prior art date
Application number
PCT/JP2017/026934
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English (en)
Japanese (ja)
Inventor
保幸 小林
歩 須藤
Original Assignee
並木精密宝石株式会社
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
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Priority to JP2018530316A priority Critical patent/JPWO2018021355A1/ja
Publication of WO2018021355A1 publication Critical patent/WO2018021355A1/fr

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action

Definitions

  • the present invention relates to a rotational position holding mechanism that locks the rotation of an output rotating body when no rotational driving force is input.
  • a rotation position holding mechanism that is attached to the output shaft of a rotating machine has been proposed (see, for example, Patent Document 1).
  • the rotational position holding mechanism transmits a rotational driving force from the output shaft of the rotating machine to the output rotating body via the input rotating body.
  • the load torque is applied to the output rotating body of the rotation position holding mechanism.
  • the rotational position holding mechanism has a function of locking the rotation of the output rotating body when no rotational driving force is input.
  • the rotation position holding mechanism is partitioned by an outer peripheral surface of the output rotator and a fixed wall surface facing the outer peripheral surface, such as an inner peripheral surface of the fixed case, and the interval between both surfaces is circumferential.
  • a wedge-like space narrowed toward the surface is provided.
  • a lock member that locks the rotation of the output rotating body when pushed into the front end side of the wedge-shaped space is provided, and the lock member is biased toward the front end side of the wedge-shaped space by a biasing member such as a leaf spring, for example.
  • the present invention focuses on the above situation and aims to provide a rotation position holding mechanism in which the shape of the biasing member is simplified while appropriately biasing the lock member.
  • the rotational position holding mechanism of the present invention is a rotational position holding mechanism that locks the rotation of the output rotating body when no rotational driving force is input, the outer peripheral surface of the output rotating body, and the A wedge-shaped space, which is partitioned by a fixed wall surface facing the outer peripheral surface, and whose interval between both surfaces narrows in the circumferential direction, and extends along the rotation axis of the output rotating body, and is pushed into the front end side of the wedge-shaped space
  • an unlocking member that releases the lock by pressing on the outer peripheral surface of the output rotating body, the circumferential width of the outer peripheral surface being narrower at the opening than the back side, along the rotation axis.
  • the urging member is a leaf spring, and is folded back to be rounded with a diameter larger than the width of the opening and accommodated in the holding groove, and extends from the folded portion and is separated from each other. And a pair of wings that are bent at only one position in the direction.
  • the biasing member has a pair of straight portions extending from the folded portion in the tangential direction of the roundness, and the pair of straight portions is connected to the pair of straight portions.
  • the wings may extend, and the pair of straight portions may extend in parallel with each other.
  • the biasing member has a pair of linear portions each extending in the tangential direction of the roundness from the folded portion, and the pair of linear portions from the pair of linear portions.
  • the wings may extend, and the pair of straight portions may extend obliquely in a direction away from each other.
  • the biasing member has a pair of linear portions each extending in the tangential direction of the roundness from the folded portion, and the pair of linear portions from the pair of linear portions.
  • the wings may extend, and the pair of linear portions may extend obliquely in a direction approaching each other.
  • the lock member can be appropriately biased by appropriately adjusting the degree of opening of the pair of wings in the leaf spring as the biasing member.
  • the shape of this urging member is a very simple shape in which a pair of wings are formed by bending only one place in a direction extending from the folded portion and away from each other.
  • FIG. 5 is a cross-sectional view of the rotational position holding mechanism shown in FIG. 1 taken along line V1-V1 in FIG. It is an enlarged view of the lock mechanism shown by FIG. It is a figure which shows a mode that a lock
  • FIG.5 (b) It is a schematic diagram which shows a mode that the biasing member shown by FIG.5 (b) is attached to the holding groove shown by Fig.5 (a), and biases a lock member.
  • FIG.5 (a) It is a schematic diagram which shows the shape of the biasing member of a comparative example with the cross-sectional shape.
  • FIG.5 (a) It is a schematic diagram which shows a mode that the folding
  • FIG.5 (a) It is a figure which shows the shape of the holding groove of another example by the cross-sectional shape similar to FIG.
  • FIG. 1 is a view showing a rotational position holding mechanism according to an embodiment of the present invention.
  • 2 is a cross-sectional view of the rotational position holding mechanism shown in FIG. 1 taken along the line V1-V1 in FIG.
  • FIG. 1 is a sectional view taken along line V2-V2 in FIG. 2 so that the internal structure of the rotational position holding mechanism 1 can be seen.
  • the rotation position holding mechanism 1 includes an input rotator 110 and an output rotator 120.
  • the input rotator 110 and the output rotator 120 are substantially disk-shaped members that are concentrically stacked with each other.
  • the input rotator 110 is a large-diameter disk
  • the output rotator 120 is a small-diameter disk.
  • the input rotator 110 is a substantially disk-shaped member that rotates around the rotating shaft 1a in response to an input of rotational driving force from the output shaft 2 of a rotating machine such as a motor.
  • the input rotator 110 has a gear 111 formed on the outer periphery thereof, and meshes with the gear 21 of the output shaft 2 of the rotating machine to receive an input of rotational driving force.
  • a power transmission projection 112 for transmitting the input rotational driving force to the output rotator 120 protrudes from the surface of the input rotator 110 on the output rotator 120 side.
  • Three power transmission protrusions 112 are arranged at equiangular intervals around the rotation shaft 1a.
  • the output rotating body 120 is a member that is rotated by receiving the rotational driving force from the input rotating body 110.
  • the output shaft 121 protrudes from the output rotating body 120 and is connected to a load (not shown).
  • the output rotator 120 is provided with three recesses 122 into which the three power transmission protrusions 112 of the input rotator 110 enter. When the input rotator 110 rotates, the power transmission protrusion 112 pushes the inner surface of the recess 122 so that the rotational driving force is transmitted and the output rotator 120 rotates.
  • the rotation position holding mechanism 1 is configured such that the input rotator 110 and the output rotator 120 are accommodated in a case 130.
  • the case 130 includes an upper lid case 131 and a bottom plate 132.
  • the upper lid case 131 has a shape in which a large diameter cylindrical portion 131a and a small diameter cylindrical portion 131b are concentrically stacked.
  • the input rotating body 110 is accommodated in the large diameter cylindrical portion 131a.
  • a part of the large-diameter cylindrical portion 131a is notched so that the gear 111 on the outer periphery of the input rotating body 110 is partially exposed.
  • the gear 111 of the input rotating body 110 meshes with the gear 21 of the output shaft 2 of the rotating machine at the exposed portion.
  • a pair of attachment portions 131c for attaching the rotation position holding mechanism 1 to a predetermined attachment position extends from the peripheral wall of the large diameter cylindrical portion 131a, and through-holes 131c for fixing screws to the attachment portions 131c. -1 is provided.
  • the bottom plate 132 has a shape that overlaps the large-diameter cylindrical portion 131a and the pair of attachment portions 131c, and is provided with a through hole 132a that communicates with the through hole 131c-1 of the attachment portion 131c.
  • the small-diameter cylindrical portion 131b accommodates the output rotator 120 with the power transmission protrusion 112 of the input rotator 110 entering the recess 122. Further, a through hole 131b-2 through which the output shaft 121 of the output rotating body 120 passes is provided in the center of the top plate portion 131b-1 of the small diameter cylindrical portion 131b.
  • the rotation position holding mechanism 1 is provided with a lock mechanism 140 that locks the rotation of the output rotating body 120 when the rotating machine is stopped, that is, when no rotational driving force is input.
  • the lock mechanism 140 is provided at three positions between the three power transmission protrusions 112.
  • FIG. 3 is an enlarged view of the locking mechanism shown in FIG.
  • the rotation of the output rotating body 120 is locked in two directions: a first restriction direction D1 that is clockwise in the drawing and a second restriction direction D2 that is counterclockwise.
  • the lock mechanism 140 is a mechanism that performs locking in these two directions.
  • the lock mechanism 140 includes a first wedge-shaped space 141 and a first lock member 142 for locking in the first restricting direction D1, and a second wedge-shaped space 143 and a first lock member 142 for locking in the second restricting direction D2. 2 lock member 144.
  • the lock mechanism 140 includes a single urging member 145 as a common member for locking these two directions.
  • the first wedge-shaped space 141 is a space partitioned by the outer peripheral surface 123 of the output rotating body 120 and the inner wall surface 131b-3 (fixed wall surface) of the small-diameter cylindrical portion 131b facing the outer peripheral surface 123.
  • the first wedge-shaped space 141 is a wedge-shaped space in which the distance between both surfaces is narrowed toward the first circumferential direction D1 'opposite to the first restricting direction D1.
  • the second wedge-shaped space 143 is a space symmetrical to the first wedge-shaped space 141 in the figure, and is a wedge-shaped space narrowed in the second circumferential direction D2 ′ opposite to the second restricting direction D2. It has become. These spaces are formed as follows.
  • the outer peripheral surface 123 of the output rotating body 120 has a shape in which three arc-shaped peripheral surfaces having a diameter larger than the inner diameter of the small-diameter cylindrical portion 131b are arranged with the concave portion 122 interposed therebetween. It has become.
  • Each arc-shaped outer peripheral surface 123 is farthest from the inner wall surface 131b-3 of the small-diameter cylindrical portion 131b at the center in the circumferential direction, and from there to the concave portions 122 on both the left and right sides, Asymptotically approach the wall 131b-3.
  • the first wedge-shaped space 141 described above is formed on the upstream side in the first restricting direction D1 with respect to the circumferential center of the outer peripheral surface 123, and the second wedge-shaped space that is symmetrical with the first wedge-shaped space 141 on the downstream side. 143 is formed.
  • the first lock member 142 is a cylindrical roller that extends along the rotation axis 1 a of the output rotating body 120, and is arranged near the tip 141 a of the first wedge-shaped space 141.
  • the first lock member 142 is formed to have a larger diameter than the interval between the tips 141 a of the first wedge-shaped space 141.
  • the second lock member 144 is a similar cylindrical roller and is disposed near the tip 143a of the second wedge-shaped space 143.
  • the urging member 145 urges the first lock member 142 toward the tip 141a side of the first wedge-shaped space 141, and urges the second lock member 144 toward the tip 143a side of the second wedge-shaped space 143.
  • the urging member 145 is held in a holding groove 124 provided at the center in the circumferential direction of each arcuate outer peripheral surface 123 of the output rotating body 120.
  • the holding groove 124 has a shape in which the far side away from the outer peripheral surface 123 is expanded.
  • the urging member 145 is a leaf spring, and has a cross-sectional shape bent into a substantially Y shape as shown in FIG. The portion that hits the tip of the Y-shaped vertical bar is a folded portion that is rounded and swollen.
  • the urging member 145 is held in the holding groove 124 so that the folded portion fits in the inner portion of the holding groove 124.
  • One of the portions of the urging member 145 that contacts the pair of Y-shaped arms urges the first lock member 142, and the other urges the second lock member 144.
  • the first lock member 142 biased as described above is pushed into the tip 141a side of the first wedge-shaped space 141.
  • the first lock member 142 becomes clogged with the tip 141a, and thereby the rotation of the output rotating body 120 in the first regulating direction D1 is locked.
  • the second lock member 144 is pushed into the tip 143a side of the second wedge-shaped space 143. As a result, the rotation of the output rotating body 120 in the second restricting direction D2 is also locked.
  • FIG. 4 is a diagram illustrating a state in which the output rotating body rotates when the lock is released when the rotational driving force is input.
  • a rotational driving force is input, depending on the rotational direction of the output shaft 2 of the rotating machine, any of the clockwise first restriction direction D1 and the counterclockwise second restriction direction D2 in the figure.
  • the output rotator 120 is rotatable. Note that the mechanism of unlocking is the same in both directions, and the rotation in the first restricting direction D1 is shown as a representative example in FIG.
  • the power transmission protrusion 112 abuts against the inner surface of the recess 122 of the output rotating body 120 and pushes the inner surface. Thereby, the rotational driving force is transmitted and the output rotating body 120 rotates. Further, at this time, the second lock member 144 is acted on by a force that moves the second wedge-shaped space 143 toward the side opposite to the tip 143a side. Rotate to.
  • the lock is released by the same operation as that shown in FIG. 4 except that the lock release target is the second lock member 144, and the output rotation is performed.
  • the body 120 rotates in the second restricting direction D2.
  • the urging member 145 has the following shape before the output rotating body 120 is attached to the holding groove 124.
  • FIG. 5 is a cross-sectional view showing the shape of the holding groove of the output rotating body to which the biasing member is attached and the shape of the biasing member before being attached to the holding groove.
  • 5A shows the shape of the holding groove 124
  • FIG. 5B shows the shape of the urging member 145 before attachment.
  • the holding groove 124 is a groove formed on the outer peripheral surface 123 of the output rotating body 120 so as to extend along the rotating shaft 1a.
  • the width of the outer circumferential surface 123 in the circumferential direction is narrower at the opening 124a than at the back side.
  • the holding groove 124 is a circular groove formed near the inside of the outer peripheral surface 123 of the output rotator 120, and a part of the circumference is cut off on the outer peripheral surface 123 side so as to be linear to the outer peripheral surface 123. It extends to form an opening 124a.
  • the width d1 of the opening 124a is narrower than the diameter d2 of the circular portion 124b.
  • Such a holding groove 124 is provided at a position opposite to the tip 141a side of the first wedge-shaped space 141 when viewed from the first lock member 142 as shown in FIG. This position corresponds to a position opposite to the tip 143a side of the second wedge-shaped space 143 when viewed from the second lock member 144.
  • the biasing member 145 before being attached to the holding groove 124 is folded and rounded with a diameter d3 larger than the width d1 of the opening 124a of the holding groove 124, and is accommodated in the circular portion 124b of the holding groove 124.
  • the diameter d3 of the folded portion 145 is smaller than the diameter d2 of the circular portion 124b of the holding groove 124.
  • the urging member 145 has a pair of wing portions 145b formed by bending a pair of portions extending from the folded-back portion 145a at only one place in a direction away from each other.
  • the shape of the portion corresponding to the Y-shaped vertical bar from the folded portion 145a to the wing portion 145b is a simple U-shape as shown in FIG. That is, this portion is provided with a pair of straight portions 145c each extending from the folded portion 145a in the tangential direction of the roundness in the folded portion 145a.
  • the pair of straight portions 145c extend in parallel with each other.
  • blade part 145b is formed by bend
  • FIG. 6 is a schematic diagram showing a state in which the urging member shown in FIG. 5 (b) is attached to the holding groove shown in FIG. 5 (a) to urge the lock member.
  • the urging member 145 is attached to the holding groove 124 in a compressed state as will be described later.
  • the pair of linear portions 145c are closed to such an extent that the roots 145b-1 of the pair of wing portions 145b pass through the openings 124a of the holding grooves 124.
  • the folded portion 145a is accommodated in the circular portion 124b of the holding groove 124.
  • the pair of wing portions 145b are connected to these lock members. It will be in the state which was pushed closer by the member.
  • One of the pair of wings 145b biases the first lock member 142 and the other biases the second lock member 144 by the reaction force when pressed in this manner.
  • the first lock member 142 and the second lock member 144 are appropriately adjusted by appropriately adjusting the degree of opening of the pair of wings 145b in the leaf spring as the biasing member 145. Can be energized.
  • the shape of the urging member attached to the holding groove 124 shown in FIG. 5A may be a shape as in the following comparative example.
  • FIG. 7 is a schematic diagram showing the shape of the biasing member of the comparative example in its cross-sectional shape.
  • FIG. 7A shows the shape of the biasing member 510 of the comparative example before mounting
  • FIG. 7B shows the shape of the biasing member 510 of the comparative example after mounting to the holding groove 124. It is shown.
  • FIG. 7C shows the shape of the biasing member 510 of the comparative example when the first lock member 142 and the second lock member 144 are arranged.
  • the biasing member 510 of the comparative example is shaped into a shape that follows the inner surface shape of the holding groove 124 before the attachment. That is, a folded portion 511 swelled in a circular shape with a part of the circumference cut off at the opening 124 a of the holding groove 124 is formed. A pair of portions extending from the folded portion 511 is folded once at a boundary portion with the folded portion 511 to form a pair of parallel plate portions 512.
  • the pair of parallel plate portions 512 is a portion that passes through the opening 124 a of the holding groove 124.
  • the pair of parallel plate portions 512 is bent again to form a pair of wing portions 513 corresponding to Y-shaped arms.
  • the biasing member 510 of the comparative example is shaped so as to follow the shape of the inner surface of the holding groove 124 as described above, its shape is almost changed as shown in FIG. Absent.
  • FIG. 7C when the first lock member 142 and the second lock member 144 are arranged, the pair of wing portions 513 are pressed toward each other and the pair of wing portions 513 are close to each other.
  • the biasing member 510 of the comparative example is shaped to follow the shape of the inner surface of the holding groove 124, so that the folded portion 511 that swells in a circular shape is prevented from dropping into the circular portion 124 b of the holding groove 124. It is housed in the state.
  • the urging member 145 in the present embodiment has a very simple shape in which a pair of wings 145b are formed by bending from the folded portion 145a and being bent at only one place in a direction away from each other. ing. Even in such a simple shape, the holding groove of the urging member 145 is prevented from falling off by accommodating the folded portion 145a in the holding groove 124 in a compressed state as shown in FIG. 124 can be attached. And since the shape of the biasing member 145 is simple, it can fully respond to the request
  • the urging member 145 has a pair of straight portions 145c each extending from the folded portion 145a in the tangential direction of the roundness in the folded portion 145a, and the pair of straight portions 145c forms a pair.
  • the wing portion 145b extends.
  • a pair of linear part 145c is extended in parallel mutually.
  • the shape of the portion corresponding to the Y-shaped vertical bar from the folded portion 145a to the wing portion 145b is a simple U-shape as shown in FIG. Such a U-shaped shape is very easy to bend and can reduce the processing cost.
  • the urging member 145 is compressed so that the pair of wings 145b extend through the opening 124a, and the folded portion 145a is accommodated in the holding groove 124.
  • FIG. 8 is a schematic view showing a state in which the folded portion of the urging member is accommodated in the holding groove of the output rotating body.
  • the holding groove 124 penetrates between both end faces of the output rotating body 120 along the rotation shaft 1a, and each end face has a holding groove 124.
  • An end opening 124c is provided.
  • the folded portion 145a is accommodated by being slid into the holding groove 124 from the end opening 124c in a state where the pair of linear portions 145c are pressed and contracted in a direction in which the roots 145b-1 of the pair of wing portions 145b are brought closer to each other.
  • the shape of the portion from the folded portion 145a to the wing portion 145b is a simple U-shape as shown in FIG.
  • the biasing member 145 is illustrated.
  • the biasing member referred to in the present invention is not limited to this, and may have, for example, a shape as exemplified below.
  • FIG. 9 is a view showing the shapes of two different types of urging members in the same cross-sectional shape as FIG.
  • FIG. 9A shows the shape of a biasing member 145 ′ of the first other example
  • FIG. 9B shows the shape of a biasing member 145 ′′ of the second other example. Yes.
  • the urging member 145 ′ of the first other example has a substantially V-shaped configuration in which the shape from the folded portion 145a ′ to the wing portion 145b ′ is slightly opened to the left and right as shown in FIG. It has a shape.
  • the urging member 145 ′ has a pair of straight portions 145 c ′ extending in the tangential direction of the rounded portion 145 a ′ and extending obliquely in a direction away from each other.
  • the biasing member 145 ′′ of the second alternative example has a slightly closed shape as shown in FIG. 9B in the shape from the folded portion 145a ′′ to the wing portion 145b ′′. That is, the biasing member 145 ′′ has a pair of straight portions 145c ′′ that extend in the tangential direction of the rounded portion 145a ′′ and each of the biasing members 145 ′′ extends obliquely in a direction approaching each other.
  • the rounded diameters d3 'and d3 "of the folded portions 145a' and 145" are larger than the width d1 of the opening 124a of the holding groove 124.
  • the biasing members 145 ′ and 145 ′′ of these other examples also have a simple shape that can sufficiently meet the demand for downsizing, like the biasing member 145 of the present embodiment.
  • the urging member referred to in the present invention is not limited to these other examples, and the urging member referred to in the present invention is only one in the direction in which the folded portion and the pair of portions extending therefrom are separated from each other. As long as it has a pair of folded wings, the specific shape is not questioned.
  • the cross-sectional shape is a circular groove, a part of the circumference is cut, and the opening extends linearly to the outer peripheral surface 123 of the output rotating body 120.
  • the holding groove 124 which became 124a is illustrated.
  • the holding groove referred to in the present invention is not limited to this, and may have a shape as exemplified below as an example.
  • FIG. 10 is a diagram showing the shape of another example holding groove with the same cross-sectional shape as FIG.
  • the holding groove 124 ′ of this other example is formed at a shallow position from the outer peripheral surface 123 of the output rotating body 120 as compared with the holding groove 124 shown in FIG.
  • the holding groove 124 ′ is also a groove having a circular cross section, and a part of the circumference is cut to form an opening 124 a ′.
  • the edge of the opening 124a ' has a thinly protruding shape.
  • the width d1' of the opening 124a ' is narrower than the diameter d2' of the circular portion 124b '.
  • the holding groove 124 ′ of this other example can hold the urging member 145 and has a simple shape, similarly to the holding groove 124 of the present embodiment.
  • the holding groove referred to in the present invention is not limited to this example.
  • the holding groove according to the present invention does not ask a specific shape as long as the opening is narrower than the back side.
  • the holding grooves 124 and 124 ′ having a circular cross-sectional shape are illustrated as the holding grooves according to the present invention.
  • the holding groove referred to in the present invention is not limited to this, and the cross-sectional shape thereof may be, for example, a substantially elliptical shape, and the specific shape is not questioned in this respect.

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  • General Engineering & Computer Science (AREA)
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Abstract

Le problème décrit par la présente invention est de fournir un mécanisme de maintien de position de rotation qui sollicite de manière appropriée un élément de blocage tout en simplifiant la forme de l'élément de sollicitation. La solution selon l'invention porte sur un mécanisme de maintien de position de rotation permettant de bloquer la rotation d'un corps rotatif de sortie lorsqu'une force d'entraînement rotative n'est pas appliquée, le mécanisme de maintien de position de rotation étant caractérisé en ce que : un élément de sollicitation (145) permettant de solliciter un élément de blocage, bloquant la rotation d'un corps rotatif de sortie lorsqu'il est pressé dans l'extrémité de pointe d'un espace en forme de coin, est équipé d'une section repliée (145a) qui est un ressort plat replié sur lui-même de façon à prendre une forme arrondie possédant un diamètre plus grand (d3) que la largeur (d1) d'une ouverture (124a) et est logé à l'intérieur d'une rainure de maintien (124) et est équipé d'une paire de parties aile (145b), obtenue par pliage de la paire de sections, qui s'étend à partir de la section repliée (145a) et passe à travers l'ouverture (124a), seulement une seule fois chacune de façon à se séparer l'une de l'autre ; et les parties aile (145b) sollicitent l'élément de blocage.
PCT/JP2017/026934 2016-07-26 2017-07-25 Mécanisme de maintien de position de rotation WO2018021355A1 (fr)

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JP2018530316A JPWO2018021355A1 (ja) 2016-07-26 2017-07-25 回転位置保持機構

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JP2016-146512 2016-07-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111422345A (zh) * 2020-05-13 2020-07-17 成都纵横大鹏无人机科技有限公司 一种转动组件

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JP2010242802A (ja) * 2009-04-02 2010-10-28 Ntn Corp 逆入力遮断クラッチ
WO2016084405A1 (fr) * 2014-11-27 2016-06-02 並木精密宝石株式会社 Mécanisme d'embrayage
WO2016084406A1 (fr) * 2014-11-27 2016-06-02 並木精密宝石株式会社 Mécanisme d'embrayage
WO2016084404A1 (fr) * 2014-11-27 2016-06-02 並木精密宝石株式会社 Mécanisme d'embrayage

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Publication number Priority date Publication date Assignee Title
JP2010242802A (ja) * 2009-04-02 2010-10-28 Ntn Corp 逆入力遮断クラッチ
WO2016084405A1 (fr) * 2014-11-27 2016-06-02 並木精密宝石株式会社 Mécanisme d'embrayage
WO2016084406A1 (fr) * 2014-11-27 2016-06-02 並木精密宝石株式会社 Mécanisme d'embrayage
WO2016084404A1 (fr) * 2014-11-27 2016-06-02 並木精密宝石株式会社 Mécanisme d'embrayage

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CN111422345A (zh) * 2020-05-13 2020-07-17 成都纵横大鹏无人机科技有限公司 一种转动组件

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