WO2020213523A1 - Dispositif rotatif d'extension/rétraction - Google Patents

Dispositif rotatif d'extension/rétraction Download PDF

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Publication number
WO2020213523A1
WO2020213523A1 PCT/JP2020/016108 JP2020016108W WO2020213523A1 WO 2020213523 A1 WO2020213523 A1 WO 2020213523A1 JP 2020016108 W JP2020016108 W JP 2020016108W WO 2020213523 A1 WO2020213523 A1 WO 2020213523A1
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WO
WIPO (PCT)
Prior art keywords
tubular portion
main body
moving member
contact surface
tubular
Prior art date
Application number
PCT/JP2020/016108
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English (en)
Japanese (ja)
Inventor
正樹 三田
敦史 曽我部
昇 新倉
Original Assignee
株式会社パイオラックス
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 株式会社パイオラックス filed Critical 株式会社パイオラックス
Priority to JP2021514920A priority Critical patent/JP7171902B2/ja
Publication of WO2020213523A1 publication Critical patent/WO2020213523A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K15/05—Inlet covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/08—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
    • F16H25/12—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal or cams

Definitions

  • the present invention relates to, for example, a rotary telescopic device used for an opening / closing structure of a fuel lid of an automobile and configured to expand and contract while rotating by a pushing operation.
  • the fuel lid of an automobile is provided with a rod for receiving and supporting the lid with the lid closed with respect to the opening.
  • This rod often has a structure that expands and contracts by pushing the lid.
  • Patent Document 1 urges a main body member having a tubular portion, a moving member that is axially slidable and rotatably held with respect to the tubular portion, and a moving member.
  • a rotary telescopic device having a spring member, a protrusion formed on the outer periphery of the moving member, and a cam groove formed on the inner circumference of the tubular portion into which the protrusion is fitted.
  • the cam groove has a first fitting groove, a second fitting groove, a first guide groove, and a second guide groove, and they are arranged so as to orbit along the inner circumference of the tubular portion.
  • the main body member is composed of a first main body portion and a second main body portion divided in the axial direction of the tubular portion, and the first main body portion is assembled with the first main body portion and the second main body portion assembled.
  • a cam groove is formed by the facing end faces of the second main body and the second main body.
  • a plurality of locking protrusions are formed on the peripheral edge of the first main body, and a plurality of frame-shaped locking frame portions are provided on the peripheral edge of the second main body, and the locking protrusions and the locking protrusions are locked. By locking the frame portion, the first main body portion and the second main body portion can be assembled.
  • the rotary telescopic device it is necessary to assemble the first main body portion and the second main body portion so that the cam grooves communicate with each other in the circumferential direction on the inner circumference of the tubular portion. Further, in order to smoothly orbit the protrusion in the cam groove, the dimensional accuracy of the cam groove is required.
  • the first main body and the second main body are assembled by locking the plurality of locking protrusions and the plurality of locking frames to each other, and both main bodies are assembled. Since a cam groove is formed between the opposing end faces of both cylinders in the assembled state, depending on the dimensional accuracy of the locking protrusion and the locking frame, the first main body and the first 2 The accuracy of assembly with the main body may be hindered, which may affect the dimensional accuracy of the cam groove.
  • an object of the present invention is to provide a rotary telescopic device capable of accurately forming a cam groove formed in a tubular portion.
  • the rotary telescopic device of the present invention is composed of a first main body portion and a second main body portion, and has a main body member having a tubular portion having a circular inner circumference and a circular outer circumference.
  • a moving member that is arranged in the tubular portion and is held rotatably and axially movable with respect to the tubular portion, and a moving member that protrudes from one end of the tubular portion.
  • the tubular portion has a groove, and the tubular portion is composed of a first tubular portion and a second tubular portion formed by dividing the tubular portion in the axial direction, and the first tubular portion is provided in the first main body portion.
  • the second cylinder portion is provided in the second main body portion, and the shafts of the first cylinder portion and the second cylinder portion are provided in a state where the first main body portion and the second main body portion are assembled.
  • the end faces facing each other are provided with a contact surface that comes into contact with each other and a cam groove forming surface that forms the cam groove apart from each other.
  • the end faces of the first cylinder portion and the second cylinder portion facing each other in the axial direction are provided with contact surfaces that are in contact with each other. Since the cam groove forming surfaces that form the cam grooves apart from each other are provided respectively, when the first main body portion and the second main body portion are assembled, the first cylinder portion and the second cylinder portion A cam groove can be formed while the contact surfaces are brought into contact with each other, and the cam groove can be formed with high accuracy.
  • FIG. 5 is an enlarged perspective view of a state in which an engaging piece of a moving member is engaged with an engaging groove of an opening / closing member in the rotary telescopic device. It is an enlarged exploded perspective view when a part of the main body member constituting the rotary type telescopic device is seen through. It is an enlarged perspective view of the moving member which comprises the same rotary telescopic device. It is an enlarged perspective view of the same rotary telescopic device.
  • the operating state of the moving member with respect to the tubular portion in the rotary telescopic device is shown, (a) is an enlarged perspective view of a main part in a state where the moving member is pulled in from the tubular portion, and (b) is from the tubular portion. It is an enlarged perspective view of a main part in a state where a moving member protrudes.
  • the operating state of the moving member with respect to the tubular part in the rotary telescopic device is shown, and it is an enlarged plan view of the main part in the state where the moving member protrudes from the tubular part.
  • FIG. 5 is an enlarged perspective view of a main part of the rotary telescopic device in a state where the engaging piece of the moving member is not engaged with the engaging groove of the opening / closing member.
  • FIG. 5 is an enlarged perspective view of a main part in a state in which an engaging piece of a moving member is engaged with an engaging groove of an opening / closing member in the rotary telescopic device.
  • This rotary telescopic device is used for the opening / closing structure of the fuel lid, for example, as shown in FIG.
  • a fixing member 1 having a substantially cylindrical box shape is fixed to the peripheral edge of the fuel filler port of the vehicle body 1a, and an opening / closing member (fuel lid) is fixed to the fixing member 1 via a hinge portion 3. ) 5 is attached so that it can be opened and closed. Further, an annular flange 2 is projected from the opening side peripheral edge of the fixing member 1.
  • a recess 2a is provided on the side of the fixing member 1 opposite to the hinge portion 3 in the circumferential direction, and the rotary expansion / contraction device 10 of this embodiment (hereinafter referred to as “expansion / contraction device 10") is provided in the recess 2a. Is placed.
  • an engaging portion 6 is provided on the inner surface side of the opening / closing member 5.
  • the engaging portion 6 is composed of a pair of side wall portions 7 and 7 having a substantially L-shape and a connecting wall 8 connecting one end portions thereof, and has a portal frame shape.
  • An engaging groove 9 is provided between the pair of side wall portions 7, 7.
  • the telescopic device 10 of this embodiment is used for the opening / closing structure of the fuel lid as described above, but may also be used for, for example, an opening / closing structure for an automobile accessory case, furniture or daily necessities having a structure that opens / closes by pushing. Often, the mode of use, installation location, etc. are not particularly limited.
  • the telescopic device 10 of this embodiment includes a first main body portion 30 and a second main body portion 40, and has a tubular portion 15 (see FIG. 7) having a circular inner circumference.
  • a main body member 11 having a main body member 11, and a moving member 50 having a circular outer circumference and being arranged in a tubular portion 15 and held rotatably and axially movable with respect to the tubular portion 15, and this movement.
  • a first spring member S1 that urges the member 50 in a direction protruding from one end 15a of the tubular portion 15, a cam protrusion 55 formed on the outer periphery of the moving member 50, and a cam protrusion 55 formed on the tubular portion 15.
  • the portion 55 is fitted into the cam groove 20 (see FIGS. 8 and 9) for axially moving the moving member 50 while rotating the moving member 50.
  • a pair of cam grooves 20 and 20 are formed in the tubular portion 15, and a pair of cam protrusions 55 and 55 are provided in the moving member 50 correspondingly.
  • the first spring member S1 forms the "spring member" in the present invention.
  • the tubular portion 15 includes a first tubular portion 33 and a second tubular portion 43 formed by dividing the tubular portion 15 in the axial direction, and the first tubular portion 33 is the first.
  • the first main body portion 30 is provided, and the second cylinder portion 43 is provided in the second main body portion 40.
  • mounting holes 16 and 17 are formed in the first main body 30 and the second main body 40, respectively.
  • the expansion / contraction device 10 can be attached to the fixing member 1 through these attachment holes 16 and 17.
  • the first main body portion 30 has a base portion 31 having a substantially long box shape extending in one direction, and is substantially on one end side in the longitudinal direction of the base portion 31.
  • a cylindrical cover 32 having a cylindrical shape is provided.
  • the first tubular portion 33 is integrally formed inside the tubular cover 32.
  • the second tubular portion 43 of the second main body portion 40 is inserted into the tubular cover 32.
  • the tubular cover 32 is omitted from the first main body portion 30, and the first tubular portion 33 is shown by a solid line. It is described in.
  • a plurality of locking protrusions 34 are projected from the outer peripheral edge portion of the base portion 31 on the contact surface 31a side with the second main body portion 40.
  • a drive device 60 is housed and arranged on the other end side of the base portion 31 in the longitudinal direction.
  • the lock retainer 70 is accommodated and arranged between the tubular cover 32 and the arrangement portion of the drive device 60 of the base portion 31.
  • the drive device 60 has a worm gear 61, and the worm gear 61 is rotated in a predetermined direction by a power supply means (not shown).
  • the lock retainer 70 has a female screw 72 in which the worm gear 61 meshes with the lock retainer 70. Further, on one side of the lock retainer 70, a lock protrusion 73 that engages and disengages with the lock hole 57 (see FIG. 2) of the moving member 50 is continuously provided. Further, a second spring member S2 is interposed between the drive device 60 and the lock retainer 70, so that the lock retainer 70 is always urged toward the moving member 50 side.
  • the drive device 60 is adapted to slide the lock retainer 70 in a direction away from the moving member 50 by the rotation of the worm gear 61, and the lock protrusion 73 of the lock retainer 70 is moved by the moving member 50. It can be pulled out from the lock hole 57. Further, the lock protrusion 73 regulates the rotation and axial movement of the moving member 50 by entering the lock hole 57 of the moving member 50 (see FIG. 12), and exits from the lock hole 57 to regulate the moving member 50. Allows rotation and axial movement (see FIG. 11).
  • the slide operation of the lock retainer 70 by the drive device 60 may use not only a worm gear but also a ball screw, and the operating source may be not only a motor but also an electromagnetic solenoid or the like, and is not particularly limited.
  • a hook-shaped operation knob 75 extends from the back side of the lock retainer 70.
  • the operation knob 75 is inserted to the outside of the main body member 11 through the groove portion 41b (see FIG. 2) of the second main body portion 40. Then, when the worm gear 61 does not rotate due to a failure of the drive device 60 or the like and the lock retainer 70 cannot slide, the operation knob 75 manually slides the lock retainer 70 to move the lock protrusion 73. It is possible to remove the member 50 from the lock hole 57.
  • a cap 80 made of rubber, an elastic elastomer or the like is provided on one end side of the tubular cover 32 (the side opposite to the contact surface with the second main body 40). It is designed to be installed.
  • the cap 80 has a substantially cylindrical peripheral wall 81 and a flange portion 82 projecting from the peripheral edge on the proximal end side thereof. Further, on the inner circumference of the peripheral wall 81, an annular first elastic portion 83 projecting from the tip end side thereof and an annular second elastic portion 84 projecting from the proximal end side are provided. These elastic portions 83 and 84 elastically abut on the outer periphery of the moving member 50, and function as a sealing member that prevents fluid such as water and foreign matter such as dust from entering the tubular portion 15. At the same time, the moving member 50 urged by the first spring member S1 functions as a damper that suppresses an excessive speed when the moving member 50 jumps out from one end 15a of the tubular portion 15.
  • the second main body portion 40 has a base portion 41 having a substantially elongated plate shape extending in one direction corresponding to the first main body portion 30.
  • a bottomed cylindrical second tubular portion 43 forming the tubular portion 15 is provided together with the first tubular portion 33.
  • the second tubular portion 43 of this embodiment has a portion that protrudes in a tubular shape from the inner surface of the base portion 41 (the surface facing the first main body portion 30) and has an open tip. It is composed of a portion that protrudes in a tubular shape from the outer surface (the surface opposite to the inner surface) of the base portion 41 and the base end side is closed.
  • the outer diameter of the second tubular portion 43 is the same as the outer diameter of the first tubular portion 33, and has a size that can be inserted into the tubular cover 32 of the first main body portion 30. Therefore, as shown in FIG. 10, the second tubular portion 43 is inserted into the tubular cover 32 in a state where the first main body portion 30 and the second main body portion 40 are assembled to form the main body member 11. Therefore, the cam groove 20 is formed on the end faces of the first cylinder portion 33 and the second cylinder portion 43 facing each other in the axial direction.
  • cam groove 20 The configuration of the cam groove 20 will be described in detail later.
  • the tubular cover 32 By arranging the tubular cover 32 on the outside of the second tubular portion 43, the cam groove 20 is covered, so that foreign matter such as dust is prevented from entering the cam groove 20.
  • a plurality of frame-shaped locking frame portions 44 are provided on the outer peripheral edge portion of the base portion 41.
  • the first main body 30 and the second main body 40 are assembled by locking the plurality of locking protrusions 34 of the first main body 30 to these plurality of locking frame portions 44, respectively.
  • the main body member 11 is configured (see FIG. 6).
  • a columnar spring support pillar 41a is projected from the center of the inner surface of the bottom of the second cylinder portion 43.
  • the spring support column 41a is inserted into the first spring member S1 to make the first spring member S1 less likely to tilt.
  • the moving member 50 arranged in the tubular portion 15 has a substantially cylindrical shape, and as shown in FIG. 10, the first spring member S1 is opened from the axially proximal end side. Is to be inserted. As a result, the moving member 50 projects by a predetermined length from one end 15a of the tubular portion 15. Further, a small-diameter columnar portion 52 is projected from the center of the axial tip of the moving member 50. At the tip of the columnar portion 52, a strip-shaped engaging piece 53 having both ends in the longitudinal direction having an arc shape is continuously provided.
  • the engaging piece 53 rotates with the rotation of the moving member 50 to change its angle, and is engaged with and disengaged from the engaging portion 6 of the opening / closing member 5.
  • the opening / closing member 5 is opened from the opening of the fixing member 1, the opening / closing member 5 is engaged so as to be in the direction along the groove direction of the engaging groove 9 of the engaging portion 6 provided in the opening / closing member 5.
  • the longitudinal direction of the unit 53 is arranged (see FIG. 11), while when the opening / closing member 5 is closed with respect to the opening of the fixing member 1, the opening / closing member 5 is arranged with respect to the groove direction of the engaging groove 9.
  • the angle of the engaging piece 53 in the longitudinal direction is changed so as to be orthogonal to each other (see FIG. 12).
  • a pair of cam protrusions 55, 55 are provided on the outer circumference of the moving member 50 in the axial direction near the base end.
  • the outer circumference of each cam protrusion 55 has a circular shape.
  • These cam protrusions 55, 55 are fitted into the pair of cam grooves 20, 20 to rotate and axially move the moving member 50 in response to the pushing operation of the moving member 50.
  • the moving member 50 urged by the first spring member S1 has a pair of cam protrusions 55 and 55 having a pair of cam grooves 20 and 20 protruding side ends 21 and 21.
  • the moving member 50 is held so as not to come off from one end 15a of the tubular portion 15 so as to be fitted to the moving member 50.
  • the cam protrusion 55 in this embodiment is integrally formed with the moving member 50, it may be formed separately.
  • a square is located on the outer circumference of the moving member 50 on the axial base end side of the pair of cam protrusions 55, 55 and at a position orthogonal to the protrusion direction of the pair of cam protrusions 55, 55.
  • Lock holes 57, 57 having a hole shape are formed. The lock protrusion 73 of the lock retainer 70 is inserted into and removed from the lock hole 57 to lock the moving member 50 to the pushed state or release the locked state.
  • a tapered surface 59 whose height gradually decreases toward the most basic end is formed on the outer periphery of the base end portion of the moving member 50.
  • the tapered surface 59 is arranged so as to face the lock protrusion 73 of the lock retainer 70. Therefore, when the moving member 50 is pushed into the inner side of the tubular portion 15 (the side opposite to one end 15a of the tubular portion 15), the tapered surface 59 presses the lock protrusion 73 to push the lock retainer 70. , It is possible to push down the second spring member S2 in a direction away from the moving member 50 against the urging force.
  • the limit switch 85 is arranged on the inner surface side of the base portion 41 (see FIG. 2). As shown in FIG. 2, the limit switch 85 has a switch case 86 and a detection unit 87 arranged at the upper end of the switch case 86. The axial base end portion of the moving member 50 is brought into contact with and separated from the detection unit 87, and the pushed state of the moving member 50 with respect to the tubular portion 15 is detected.
  • a bus bar 90 is arranged on the inner surface side of the base portion 41. As shown in FIG. 2, the bus bar 90 has a first conductive portion 91 that conducts to the drive device 60, a second conductive portion 92 that conducts to the limit switch 85, and a connecting portion 93 that connects them. There is. Then, electric power from a power supply means (not shown) is supplied to the drive device 60 via the first conductive portion 91, and the limit switch 85 is supplied via the first conductive portion 91, the connecting portion 93, and the second conductive portion 92. It is supposed to be supplied to.
  • the cam groove 20 has a protruding side end portion 21 provided on the one end 15a side of the tubular portion 15 and the other end of the tubular portion 15 rather than the protruding side end portion 21. It has a push-in side end portion 23 provided on the side, and when the cam protrusion 55 is located at the protruding side end portion 21, the moving member 50 projects by a predetermined length from one end 15a of the tubular portion 15 ( 7 (b) and 8), when the cam protrusion 55 is located at the push-in side end 23, the moving member 50 is pulled in by a predetermined length from one end 15a of the tubular portion 15 (FIG. 7 (FIG. 7). a) and Fig. 9) are configured.
  • the protruding side end portion 21 is fitted with the cam protrusion 55 of the moving member 50 urged by the first spring member S1 to form a tubular portion.
  • the moving member 50 is held in a protruding state from one end 15a of 15.
  • the protruding side end portion 21 is formed with a straight line portion 21a extending linearly with a predetermined length along the axial direction of the tubular portion 15 toward the pushing side end portion 23.
  • the moving member 50 pushes the push-in side end portion 23 toward the inner side of the tubular portion 15 (the other end side opposite to one end 15a).
  • the cam protrusion 55 is fitted, the cam protrusion 55 is fitted to restrict further pushing.
  • the lock protrusion 73 of the lock retainer 70 urged by the second spring member S2 fits into the lock hole 57 of the moving member 50, so that the moving member 50 is one end 15a of the tubular portion 15. It is designed to be held in a state of being pulled in by a predetermined length from.
  • cam groove 20 of this embodiment is provided on one side of the circumferential direction (direction indicated by reference numeral R1 in FIG. 8) with respect to the axial center C (direction along the axial direction) of the tubular portion 15, hereinafter simply ".
  • a guide portion 25 is provided which is inclined in the circumferential direction (also referred to as “R1”) and connects the end portions 21 and 23 to each other.
  • the "axial direction” means the axial direction of the tubular portion 15 (the direction along the axial center C), and the “circumferential direction” means the tubular portion. It shall mean the circumferential direction of 15.
  • the guide unit 25 plays the following roles (1) and (2).
  • (1) When the moving member 50 is pushed in with the cam protruding portion 55 fitted to the protruding side end portion 21, the cam protruding portion 55 is moved to the other end side in the axial direction while being moved in the circumferential direction R1. Then, it is guided to the push-in side end portion 23, and the moving member 50 is pulled in by a predetermined length while rotating from one end 15a of the tubular portion 15.
  • the cam protrusion 55 positioned at the push-in side end 23, the lock protrusion 73 of the lock retainer 70 is pulled out from the lock hole 57 of the moving member 50 by the drive device 60, and the locked state is released.
  • the urging force of the first spring member S1 causes the cam protrusion 55 to be moved to the other side in the circumferential direction with respect to the axial center C of the tubular portion 15 (the direction indicated by reference numeral R2 in FIG. 9, hereinafter simply referred to as simply. While moving in the "circumferential direction R2"), it is moved to one end side in the axial direction and guided to the protruding side end portion 21, and the moving member 50 is rotated in the direction opposite to that at the time of pulling in. A predetermined length is projected from one end 15a of the tubular portion 15.
  • the end face on the other end side in the axial direction of the first cylinder portion 33 and the end face on the one end side in the axial direction of the second cylinder portion 43 face each other in the axial direction. It is formed by bringing a part of it into contact with the other and separating the rest.
  • the end faces of the first cylinder 33 and the second cylinder 43 facing each other in the axial direction are in contact with each other.
  • Contact surfaces 35 and 45 and cam groove forming surfaces 37 and 47 that form cam grooves 20 apart from each other are provided.
  • the plurality of locking frame portions 44 on the second main body 40 side are locked with the plurality of locking frame 44s on the first main body 30 side, so that the first main body 30 and the second main body 40 are engaged.
  • the contact surface 35 of the first cylinder portion 33 and the contact surface 45 of the second cylinder portion 43 are in contact with each other in the assembled state, and the cam groove forming surface 37 of the first cylinder portion 33 is formed.
  • a cam groove 20 is formed between the cam groove forming surface 47 and the cam groove forming surface 47 of the second tubular portion 43.
  • a pair of contact surfaces 35, 45 and cam groove forming surfaces 37, 47 having the above-described configuration are provided at equal intervals in the circumferential direction of the tubular portion 15. ..
  • the contact surface 35 provided on the end surface of the first cylinder portion 33 facing the second cylinder portion 43 is arranged on the protruding side end portion 21 side.
  • a first contact surface 35a extending along the circumferential direction
  • a second contact surface 35b arranged on the push-in side end 23 side and extending along the circumferential direction
  • a first contact surface 35a a first contact surface 35a
  • a second contact surface a second contact surface.
  • the contact surfaces 35b are connected to each other, and the third contact surface 35c extends so as to be inclined toward the circumferential direction R2 with respect to the axial center C of the tubular portion 15 to form a substantially crank shape.
  • the cam groove forming surfaces 37 provided on the facing end surfaces of the second cylinder portion 43 of the first cylinder portion 33 are a pair of straight portion forming surfaces extending in parallel with each other along the axial direction.
  • It is composed of a guide portion forming surface 37d extending while being inclined to the side, and a push end forming surface 37e extending along the axial direction from the other end of the guide portion forming surface 37d in the axial direction.
  • the push-in end portion forming surface 37e is shorter in the axial direction than the pair of straight portion forming surfaces 37a and 37b.
  • the contact surface 45 provided on the end surface of the second cylinder portion 43 facing the first cylinder portion 33 has a shape suitable for the contact surface 35 of the first cylinder portion 33. It has become. That is, the contact surface 45 is arranged on the protruding side end portion 21 side and extends along the circumferential direction, and the first contact surface 45a that abuts on the first contact surface 35a and the push-in side end portion 23.
  • the second contact surface 45b which is arranged on the side and extends along the circumferential direction and abuts on the second contact surface 35b, and the first contact surface 45a and the second contact surface 45b are connected to each other. It has a substantially crank shape and is formed of a third contact surface 45c that extends inclined toward the circumferential direction R2 with respect to the axial center C of the tubular portion 15 and abuts on the third contact surface 35c.
  • the cam groove forming surface 47 provided on the opposite end surface of the first cylinder portion 33 of the second cylinder portion 43 has a straight portion forming surface 47a extending along the axial direction and the straight line.
  • a guide portion forming surface 47b extending from the other end in the axial direction of the portion forming surface 47a while being inclined toward the circumferential direction R1 side with respect to the axial center C of the tubular portion 15, and a shaft of the guide portion forming surface 47b. It is composed of a push-end end forming surface 47c extending from the other end in the direction along the circumferential direction.
  • the straight portion forming surface 47a is formed shorter in the axial direction than the pair of straight portion forming surfaces 37a and 37b on the first cylinder portion 33 side.
  • the first contact surface 35a, the second contact surface 35b, and the third of the first cylinder portion 33 are assembled.
  • the contact surface 35c comes into contact with the first contact surface 45a, the second contact surface 45b, and the third contact surface 45c of the second tubular portion 43, respectively.
  • the straight portion forming surface 37a of the first tubular portion 33 and the straight portion forming surface 47a of the second tubular portion 43 are aligned in the circumferential direction and continuously extend in the axial direction.
  • the straight portion 21a of the cam groove 20 is formed by the straight portion forming surfaces 37a, 37b, 37c of the first tubular portion 33 and the straight portion forming surface 47a of the second tubular portion 43 while being linear. It has become.
  • the guide portion forming surface 37d of the first cylinder portion 33 and the guide of the second cylinder portion 43 is arranged apart from each other so that the guide portion 25 of the cam groove 20 is formed.
  • first contact surfaces 35a and 45a of both tubular portions 33 and 43 are provided so as to be located in the middle of the straight portion 21a in the axial direction. Further, as shown in FIG. 8, in this embodiment, the second contact surfaces 35b and 45b of both tubular portions 33 and 43 are provided so as to be located at the push-in side end portions 23.
  • first contact surfaces 35a, 45a, the second contact surfaces 35b, 45b, and the third contact surfaces 35c, 45c of both tubular portions 33, 43 are tubular portions. It is configured to be in contact with each other at three points in the axial direction of 15, but for example, the first contact surfaces and the third contact surfaces may be in contact with each other, or the second contact surfaces may be in contact with each other. And the third contact surfaces may be in contact with each other.
  • the contact surfaces of both tubular portions may be inclined with respect to the axial center of the tubular portion or may have a shape extending along the axial direction.
  • the third contact surface may extend along the axial direction, extend in a stepped shape, extend in a curved shape, or the like, and may be a combination of both main bodies.
  • the corresponding contact surfaces of both cylinders may be in contact with each other, and the contact points may be one place.
  • the cam groove forming surfaces of both cylinders are not particularly limited as long as the cam protrusions can move inside the cam groove forming surfaces.
  • the drive device 60, the second spring member S2, the lock retainer 70, the limit switch 85, and the bus bar 90 are arranged between the first main body 30 and the second main body 40, and the spring of the second main body 40 is arranged.
  • the first spring member S1 is attached to the outer periphery of the support column 41a. After that, the second tubular portion 43 of the second main body portion 40 is inserted into the tubular cover 32 of the first main body portion 30 and pushed in.
  • the contact surface 35 of the first cylinder portion 33 and the contact surface 45 of the second cylinder portion 43 come into contact with each other, so that the second cylinder portion 43 is pushed further.
  • a plurality of locking protrusions 34 on the first main body 30 side are locked to the plurality of locking frame portions 44 on the second main body 40 side, respectively, so that the first main body 30 and the second main body 30 and the second It can be assembled with the main body 40.
  • the expansion / contraction device 10 can be assembled by attaching the cap 80 to the outer circumference of the tip of the tubular portion 15.
  • the cam groove 20 can be formed in the tubular portion 15. Then, in the expansion / contraction device 10, when the first main body portion 30 and the second main body portion 40 are assembled, both of the contact surfaces 35 and 45 of both the tubular portions 33 and 43 are brought into contact with each other. Since the cam groove 20 can be formed by the cam groove forming surfaces 37 and 47 of the tubular portions 33 and 43, the cam groove 20 can be formed with high accuracy.
  • the contact surfaces 35 and 45 are brought into contact with each other at a position close to the cam groove forming surfaces 37 and 47 to form the cam groove 20. Therefore, it is possible to prevent the first cylinder portion 33 and the second cylinder portion 43 from tilting or rattling, and it is possible to easily align the axes of both cylinder portions 33 and 43. Therefore, a cam having a desired size can be used.
  • the groove 20 can be formed with high accuracy.
  • expansion / contraction device 10 assembled as described above operates as follows.
  • each cam protrusion 55 is fitted to the protruding end 21 of each cam groove 20 (here, the cam protrusion 55 is a straight line constituting the straight portion 21a).
  • the moving member 50 is projected by a predetermined length from one end 15a of the tubular portion 15 (in a state of being in contact with the portion forming surfaces 37a, 37b, 37c).
  • the engaging piece 53 of the moving member 50 in this state passes through the engaging groove 9 of the engaging portion 6 and is in contact with the inner surface side of the opening / closing member 5. Can be opened and closed with respect to the peripheral edge of the opening of the fixing member 1.
  • the lock protrusion 73 of the lock retainer 70 urged by the second spring member S2 is arranged so as to face the tapered surface 59 at the most basic end of the moving member 50. ing.
  • each cam protrusion 55 fitted to each protruding side end portion 21 moves a predetermined distance in the axial direction along the straight portion 21a, and then is guided by the guide portion 25, respectively, and the moving member 50 is moved. While rotating in a predetermined direction, the engaging piece 53 is gradually pulled into the tubular portion 15 and the engaging piece 53 is rotated.
  • each cam protrusion 55 abuts on the push-side end 23 of each cam groove 20, and further push-in is restricted.
  • the lock protrusion 73 of the lock retainer 70 pressed by the urging force of the second spring member S2 enters the lock hole 57 of the moving member 50 and engages with the lock retainer 70 from one end 15a of the tubular portion 15.
  • the moving member 50 can be held in a retracted state by a predetermined length.
  • the engaging piece 53 of the moving member 50 is orthogonal to the groove direction of the engaging groove 9 of the engaging portion 6 of the opening / closing member 5 in the longitudinal direction of the engaging piece 53. Therefore, the opening / closing member 5 can be locked in a closed state with respect to the peripheral edge of the opening of the fixing member 1.
  • the drive device 60 is driven, and the lock retainer 70 is moved against the urging force of the second spring member S2 via the worm gear 61. It is pushed down to pull out the lock protrusion 73 from the lock hole 57 of the moving member 50. Then, the moving member 50 is pushed by the urging force of the first spring member S1, and each cam protrusion 55 comes out from the pushing side end portion 23 of each cam groove 20, so that the pushed state of the moving member 50 is released. ..
  • each cam protrusion 55 is guided by each guide portion 25, and the moving member 50 gradually protrudes from one end 15a of the tubular portion 15 while rotating in a direction opposite to the rotation direction at the time of pushing. ..
  • the moving member 50 gradually protrudes from one end 15a of the tubular portion 15 while rotating in a direction opposite to the rotation direction at the time of pushing. ..
  • further protrusion of the moving member 50 is restricted, and as shown in FIG. 11, the engaging piece Since the 53 is in the direction along the groove direction of the engaging groove 9 of the engaging portion 6 of the opening / closing member 5, the lock of the closed state of the opening / closing member 5 is released.
  • the opening / closing member 5 is pushed by the moving member 50 and the opening / closing member 5 is lifted by a predetermined height from the opening of the fixing member 1 (lifter operation), the opening / closing member 5 can be opened manually.
  • the rotary telescopic device 10 in this embodiment has the lock retainer 70 that engages with the moving member 50 in the state of being pushed into the tubular portion 15 and holds the pushed state of the moving member 50. Since it has a drive device 60 that is housed in the main body member 11 and drives the lock retainer 70 to release the pushed state of the moving member 50, the lid opening / closing structure of the fuel lid as described above is provided. Can be suitably used for. Further, by providing the lock retainer 70 for holding the pushed state of the moving member 50, it is not a rotating cam groove as in the rotary telescopic device of Patent Document 1, but in the circumferential direction and the axial direction of the tubular portion 15.
  • the cam groove 20 can be formed with a simple shape extending by a predetermined length and a short groove length, it is possible to secure a long length of the contact surfaces 35 and 45 of both cylinder portions 33 and 43. The dimensional accuracy of the cam groove 20 can be further improved.
  • the cam groove 20 is provided on the protruding side end portion 21 provided on the one end 15a side of the tubular portion 15 and on the other end side of the tubular portion 15 with respect to the protruding side end portion 21. It has a push-in side end portion 23 provided, and the protruding side end portion 21 extends linearly with a predetermined length along the axial direction of the tubular portion 15 toward the push-in side end portion 23. , The straight line portion 21a is formed. Therefore, when the moving member 50 urged by the first spring member S1 protrudes from one end 15a of the tubular portion 15, even if the spring force of the first spring member S1 weakens, the cam protrusion 55 is a straight portion.
  • the rotary telescopic device 10 Since it passes through 21a, the resistance of the cam protrusion 55 to the inner circumference of the cam groove can be reduced, and the moving member 50 can be reliably projected from one end 15a of the tubular portion 15.
  • the fuel lid opening / closing member 5
  • the fuel lid opening / closing member 5
  • a part of the contact surfaces 35 and 45 is arranged in the middle of the straight line portion 21a constituting the cam groove 20. Therefore, as shown in FIGS. 8 and 9, even if there is a slight step on the contact surfaces 35, 47 (here, the first contact surfaces 35a, 45a) in which both the tubular portions 33, 43 are in contact with each other. Since the contact surfaces 35a and 47a are located in the middle of the straight portion 21a, they are unlikely to affect the movement of the cam protrusion 55 moving in the cam groove 20, particularly the rotational movement.
  • a part of the contact surfaces 35 and 45 is arranged at the push-in side end portion 23 constituting the cam groove 20. That is, as shown in FIGS. 7A and 8, since the third contact surfaces 35c and 45c of both cylinder portions 33 and 43 are arranged on the push-in side end portion 23, the moving member 50 is pushed in. Even if there is a step at the position where the cam protrusion 55 stops, it does not easily affect the rotational movement and the axial movement of the moving member 50.
  • the contact surfaces 35 and 45 of both the tubular portions 33 and 43 are first formed along the circumferential direction on the protruding side end portion 21 side.
  • the third contact surfaces 35c and 45c are in contact with each other, the positions of the cam groove forming surfaces 37 and 47 in the axial direction and the circumferential direction can be regulated at closer positions, and the accuracy of the cam groove 20 can be improved. It can be further enhanced.
  • the first contact surfaces 35a, 45a and the third contact surfaces 35c, 45c of both cylinder portions 33, 43 are in contact with each other, and the second contact surfaces 35b, 45b and the third contact surface are in contact with each other. Even if the 35c and 45c are in contact with each other, the same effect as described above can be obtained.
  • the present invention is not limited to the above-described embodiments, and various modified embodiments are possible within the scope of the gist of the present invention, and such embodiments are also included in the scope of the present invention. ..
  • Rotary telescopic device (expandable device) 11
  • Main body member 15
  • Cylindrical part 20
  • Cam groove 21 Protruding side end 21a
  • Straight part 23
  • Pushing side end 30
  • First main body 33
  • First cylinder 35
  • Contact surface 37
  • Cam groove forming surface 40
  • Second main body 43
  • Second Cylinder 45
  • Cam groove forming surface 50
  • Moving member 55
  • Cam protrusion 60
  • Drive device 61
  • Worm gear 70
  • Lock retainer 80 Cap 85

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Lock And Its Accessories (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne un dispositif rotatif d'extension/rétraction qui permet de former avec précision une rainure de came dans une partie tubulaire. Le dispositif rotatif d'extension/rétraction (10) possède : un élément corps principal (11) comprenant une première section (30) de corps principal et une seconde section (40) de corps principal et une partie tubulaire (15) ; un élément de déplacement (50) retenu dans la partie tubulaire (15) ; un élément ressort (S1) ; des saillies (55) de came et des rainures (20) de came. La partie tubulaire (15) comprend une première section (33) de tube et une seconde section (43) de tube ; la première section (33) de tube est agencée sur la première section (30) de corps principal ; la seconde section (43) de tube est agencée sur la seconde section (40) de corps principal ; les surfaces de contact (35, 45), en contact l'une avec l'autre, et les surfaces (37, 47) de formation de rainure de came, séparées l'une de l'autre et formant des rainures (20) de came, sont agencées sur des faces d'extrémité opposées et respectives des sections (33, 43) de tube lorsque les sections (30 et 40) de corps principal sont dans l'état assemblé.
PCT/JP2020/016108 2019-04-19 2020-04-10 Dispositif rotatif d'extension/rétraction WO2020213523A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021514920A JP7171902B2 (ja) 2019-04-19 2020-04-10 回転式伸縮装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019080554 2019-04-19
JP2019-080554 2019-04-19

Publications (1)

Publication Number Publication Date
WO2020213523A1 true WO2020213523A1 (fr) 2020-10-22

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015209689A (ja) * 2014-04-25 2015-11-24 株式会社ニフコ リッド装置
WO2018038034A1 (fr) * 2016-08-26 2018-03-01 株式会社パイオラックス Dispositif d'extension/rétraction du type rotatif

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015209689A (ja) * 2014-04-25 2015-11-24 株式会社ニフコ リッド装置
WO2018038034A1 (fr) * 2016-08-26 2018-03-01 株式会社パイオラックス Dispositif d'extension/rétraction du type rotatif

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JPWO2020213523A1 (fr) 2020-10-22

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