WO2019098090A1 - Mécanisme de verrouillage pour dispositif de guidage de mouvement et dispositif de guidage de roulement l'utilisant - Google Patents

Mécanisme de verrouillage pour dispositif de guidage de mouvement et dispositif de guidage de roulement l'utilisant Download PDF

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Publication number
WO2019098090A1
WO2019098090A1 PCT/JP2018/041147 JP2018041147W WO2019098090A1 WO 2019098090 A1 WO2019098090 A1 WO 2019098090A1 JP 2018041147 W JP2018041147 W JP 2018041147W WO 2019098090 A1 WO2019098090 A1 WO 2019098090A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake pin
track rail
slide block
fixing hole
guide device
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/JP2018/041147
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English (en)
Japanese (ja)
Inventor
望月　廣昭
栄二 保坂
宏臣 栗林
彰斗 金子
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.)
THK Co Ltd
Original Assignee
THK Co Ltd
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 THK Co Ltd filed Critical THK Co Ltd
Publication of WO2019098090A1 publication Critical patent/WO2019098090A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load

Definitions

  • the present invention relates to a locking mechanism for securing a slide block to an arbitrary position of the track rail in a motion guide device in which the slide block freely moves along the track rail.
  • a motion guide device there is known a track rail and a slide block assembled to the track rail and freely movable along the longitudinal direction of the track rail.
  • a slide guide device in which a resin sliding contact member having a low coefficient of friction is provided between the track rail and the slide block, or the slide block is connected to the track rail via a large number of rolling elements.
  • An assembled rolling guide device is included.
  • Patent Document 1 discloses a system for adjusting the seat position in the plane of an aircraft, and it is possible to use the motion guide device in this system. That is, while the track rail is disposed on the floor of the aircraft, the legs of the seat are connected to the slide block, so that the seat can be easily moved on the floor and the number of seats and their arrangement can be obtained. It is possible to flexibly change the pitch.
  • the present invention has been made in view of such problems, and the object of the present invention is to securely fix the slide block at an arbitrary position in the longitudinal direction of the track rail, and the fixed state is An object of the present invention is to provide a locking mechanism that is not unintentionally released.
  • the present invention is a lock mechanism for fixing the slide block at any position in the longitudinal direction of the track rail, wherein the fixing holes are arranged at a predetermined pitch in the longitudinal direction with respect to the track rail;
  • a brake pin which is held by the slide block and can be set to an open position separated from the fixing hole and a lock position inserted into the fixing hole, a prestressing member for biasing the brake pin toward the locking position, and And a restricting member engaged with the brake pin set in the lock position to prevent the movement of the plate in the open position.
  • the slide block can be fixed to the track rail by setting the brake pin in the lock position.
  • the brake pin since the preloading member is biased to move the brake pin toward the lock position, the brake pin will not be unintentionally released from the lock position.
  • the restricting member since the restricting member is engaged with the brake pin set in the lock position, even if an acceleration in the direction of coming out of the fixing hole acts on the brake pin, the brake pin It can be held in a locked position in the fixing hole, and the fixed state of the slide block with respect to the track rail can be well maintained.
  • FIG. 1 It is a perspective view which shows the example which applied the lock mechanism of this invention to the rolling guide apparatus which is 1 type of a movement guide apparatus. It is a longitudinal cross-sectional view of the rolling guide apparatus shown in FIG. It is the schematic which shows the state in which the brake pin was set to the open position. It is the schematic which shows the state in which the brake pin was set to the locked position.
  • FIG. 1 and 2 are views showing an example in which the lock mechanism of the present invention is applied to a rolling guide apparatus
  • FIG. 1 is a perspective view
  • FIG. 2 is a longitudinal sectional view.
  • the rolling guide device is used for a seat position adjustment system in an aircraft plane, and includes a long linear track rail 1 and a slide block 2 freely moving along the track rail 1. Is equipped.
  • the track rail 1 is fixed to a base rail 3 laid on the floor of the aircraft, while the slide block 2 is a joint 20 for connecting the legs of the seat. Is provided.
  • the track rail 1 is a rod-like member whose vertical cross section is formed in a substantially rectangular shape, and the bottom surface in contact with the base rail 3 and the top surface opposite to the bottom surface are formed in parallel planes, The surface has an uneven shape.
  • a ball rolling groove 10 as a rolling element rolling surface is formed along the longitudinal direction in the track rail 1, and a large number of balls 4 held by the slide block 2 roll the ball rolling groove 10. Run. In the embodiment shown in FIG. 1, a total of two ball rolling grooves 10 are formed on the left and right of the track rail 1. Further, concave grooves 11 are formed in parallel to the ball rolling groove 10 on both sides of the track rail 1 and below the ball rolling groove 10.
  • a plurality of bolt mounting holes 12 pass through the track rail 1 at predetermined intervals along the longitudinal direction between the upper surface and the bottom surface of the track rail 1, and the track rail 1 is a hexagonal hole inserted into the bolt mounting holes 12 It is fixed to the said base rail 3 using a bolt.
  • the slide block 2 is formed in a wedge shape straddling the track rail 1, and has a central portion 21a opposed to the upper surface of the track rail 1, and a pair of side wall portions 21b extending downward from both left and right sides of the central portion 21a. have.
  • the slide block 2 is assembled to the track rail 1 via a large number of balls 4 as rolling elements, and the large number of balls 4 load a load between the slide block 2 and the track rail 1. I roll. Thereby, the slide block 2 can be easily moved along the track rail 1. Further, the slide block 2 has an infinite circulation path through which the large number of balls 4 circulate, and the slide block 2 is along the long track rail 1 by the balls 4 circulating through the endless circulation path. It is possible to move freely.
  • a pair of side wall portions 21 b of the slide block 2 is opposed to both side surfaces of the track rail 1.
  • the ridges 22 along the longitudinal direction of the track rail 1 are formed on the inner side surfaces of the side walls 21 b of the slide block 2, and the ridges 22 are formed in the grooves 11 provided in the track rail 1. It fits through the gap.
  • the ridges 22 of the slide block 2 and the concave grooves 11 of the track rail 1 are compatible with each other only when the slide block 2 is assembled to the track rail 1 from the longitudinal end of the track rail 1 .
  • the slide block 2 does not move the track rail 1. It is designed not to be separated from That is, as shown in the present embodiment, when this rolling guide device is used in the seat position adjusting system, the leg portion of the seat coupled to the slide block is movable in the longitudinal direction of the track rail, but The legs are inseparable from the base rail 3 to which the track rail is connected, and it is possible to hold the seat securely to the floor surface to which the base rail 3 is fixed.
  • the base rail 3 is formed in a channel shape with a groove 30 extending along the longitudinal direction, and the groove 30 is surrounded by the bottom 31 and a pair of side walls 32. At the upper end of the pair of side walls 32, holding portions 33 are respectively provided, and the holding portions 33 extend along the longitudinal direction of the base rail 3 and project onto the groove portion 30. A slit-like opening is provided between the pair of holding portions 33 protruding above the groove 30. Further, a plurality of insertion holes 34 are formed in the base rail 3 so as to cut out the holding portion 33. The insertion holes 34 are provided at regular intervals along the longitudinal direction of the base rail 3, the holding portion 33 is divided by the insertion holes 34, and the openings are formed at the positions where the insertion holes 34 are formed. It has been widened.
  • the fixed terminal 35 is inserted into the groove 30 of the base rail 3.
  • the tip of the hexagonal socket bolt inserted into the bolt mounting hole 12 of the track rail 1 is screwed into the fixed terminal 35, and when the hexagonal socket bolt is tightened, the groove 30 of the base rail 3
  • the fixed terminal 35 is pulled up toward the track rail 1, and the holding portion 33 of the base rail 3 is sandwiched between the fixed terminal 35 and the track rail 1.
  • the hexagonal socket bolt is fastened, the track rail 1 is securely fixed to the base rail 3.
  • fixing holes 13 are provided on the upper surface of the track rail 1 at predetermined intervals along the longitudinal direction.
  • the brake pin 5 held by the slide block 2 is inserted into the fixing hole 13.
  • the formation intervals of the bolt mounting holes 12 and the fixing holes 13 are the same, and these bolt mounting holes 12 and the fixing holes 13 alternate along the longitudinal direction of the track rail 1. It is arranged.
  • the inner peripheral surface of the fixing hole 13 is formed in a tapered shape, and the inner diameter of the fixing hole 13 gradually decreases as it approaches the bottom of the hole.
  • the brake pin 5 inserted into the fixing hole is held by the slide block 2.
  • the brake pin 5 is formed in a substantially cylindrical shape, and protrudes on the slide block 2 in a state where the axial direction is orthogonal to the longitudinal direction of the track rail.
  • the slide block 2 is provided with a through hole having an inner diameter slightly larger than the outer diameter of the brake pin 5, and the lower end of the brake pin 5 is inserted into the through hole. Further, the through hole is present at a position facing the fixing hole 13 of the track rail 1. Therefore, the lower end of the brake pin 5 is inserted into and removed from the fixing hole 13 by moving the brake pin 5 vertically inserted in the through hole of the slide block 2 in the axial direction.
  • the brake pin 5 can freely move between the lock position where the lower end is inserted into the fixing hole 13 and the open position where the lower end is separated from the fixing hole 13, and the brake When the pin 5 is set to the lock position, the movement of the slide block 2 with respect to the track rail 1 is prohibited.
  • a tapered tip portion 50 is provided at the lower end of the brake pin 5 inserted into the fixing hole 13.
  • the front end portion 50 has a tapered outer peripheral surface that matches the shape of the inner peripheral surface of the fixing hole 13 of the track rail 1, and in the state where the brake pin 5 is set to the lock position, the front end The outer peripheral surface of the portion 50 closely contacts the inner peripheral surface of the fixing hole 13.
  • a pin holder 6 formed by bending a metal plate is fixed to the slide block 2.
  • the upper end of the brake pin 5 penetrates the pin holder 6, and the pin holder 6 has a function of guiding when the brake pin 5 moves up and down between the lock position and the open position.
  • a preload member 7 formed of a coil spring is provided between the brake pin 5 and the pin holder 6, and the brake pin 5 is always urged toward the track rail 1. Therefore, the brake pin 5 is always set to the lock position in a state where no external force pulling up the brake pin 5 in the direction of the pin holder 6 is acting on the brake pin 5, and the tip portion 50 is of the preload member 7. It is pushed into the fixing hole 13 of the track rail 1 by the biasing force.
  • control pin 51 is provided with a control groove 51 along the circumferential direction
  • the pin holder 6 is provided with a control member 8 engaged with the control groove.
  • 3 and 4 are views showing the configuration of the regulating member 8.
  • the restricting member 8 has a restricting piece 52 fitted in the restricting groove 51, and the restricting piece 52 is biased by the elastic member 53 in a direction orthogonal to the axial direction of the brake pin 5.
  • the restricting piece 52 does not fit into the restricting groove 51 in the state where the brake pin 5 is set to the open position, and is pressed against the outer peripheral surface of the brake pin 5 by the elastic member 53 (see FIG. 3).
  • the restriction piece 52 faces the restriction groove 51, and is fitted into the restriction groove 51 by the biasing force of the elastic member 53 (see FIG. 4).
  • the restriction member 8 is realized by a ball plunger. That is, as shown in FIG. 2, a ball plunger as the restricting member 8 is fixed to the pin holder 6, and a ball located at the tip of the ball plunger presses against the outer peripheral surface of the brake pin 5 as the restricting piece 52. It is done.
  • the ball plunger is screwed into the pin holder 6, and is fixed to the pin holder 6 by a lock nut 80.
  • the tip portion 50 of the brake pin 5 is the track rail
  • the slide block 2 can be moved out of the fixing hole 13 of 1 and the track rail 1 can be moved. Since the biasing force for pushing the brake pin 5 to the lock position acts from the preload member 7, the brake pin 5 is pressed toward the upper surface of the track rail 1 when the external force is removed. Therefore, when the slide block 2 is moved and the brake pin 5 reaches the position opposite to the fixing hole 13 of the track rail 1, the brake pin 5 is fitted into the fixing hole 13 and set to the lock position. Ru.
  • the tapered shape of the outer peripheral surface of the distal end portion 50 of the brake pin 5 matches the tapered shape of the inner peripheral surface of the fixing hole 13, so that when the brake pin 5 is set to the lock position, the distal end portion The reference numeral 50 is fitted with the fixing hole 13 without a gap by the pressing force of the preloading member 7.
  • the brake pin 5 is fixed to the track rail 1 without rattling, and the slide block 2 becomes immovable with respect to the track rail 1 and fixed on the track rail 1. Therefore, in the rolling guide device of the present embodiment, the slide block 2 can be reliably fixed at any position along the track rail 1 as long as the fixing hole 13 is present.
  • the brake pin 5 since the brake pin 5 is always urged to the lock position by the preload member 7, even if vibration acts on the rolling guide device, the brake pin 5 unintentionally causes the track It does not come out of the fixing hole 13 of the rail 1 and the fixing state of the slide block 2 with respect to the track rail 1 is reliably maintained. Further, since the restriction piece 52 is inserted into the restriction groove 51 of the brake pin 5 set at the lock position, the brake pin 5 is fixed as long as the restriction piece 52 does not come out of the restriction groove 51. It is impossible to withdraw from the hole 13 and retract from the locked position to the open position.
  • the lock mechanism of the motion guide device of the present embodiment even if the motion guide device is used at a portion where a large acceleration is likely to be applied, the fixed state of the slide block with respect to the track rail can be assured. It becomes possible to maintain. For this reason, it becomes possible to aim at the expansion of the use of a motion guidance device like the adjustment system of the seat position in the inflight of an aircraft, for example.
  • FIGS. 1 and 2 are merely examples of the motion guide device to which the lock device of the present invention can be applied.
  • the motion guide device Accordingly, it is possible to appropriately change the design.
  • FIG.1 and FIG.2 demonstrated the rolling guide apparatus with which the said track rail 1 and the said slide block 2 were assembled
  • the application object is not limited to this.
  • a slide guide device in which the slide block 2 is in sliding contact with the track rail 1 via a low friction coefficient sliding contact member may be used.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

L'invention concerne un mécanisme de verrouillage pour fixer un verrou coulissant (2) dans une position souhaitée dans la direction de la longueur d'un rail (1), le mécanisme comprenant : des trous de fixation (13) disposés sur le rail (1) à un pas prescrit dans la direction de la longueur de celui-ci ; une goupille de frein (5) maintenue par le verrou coulissant (2), il est possible de régler la broche de frein (5) dans une position de libération séparée d'un trou de fixation (13) et d'une position de verrouillage insérée dans un trou de fixation (13) ; un élément de précharge (7) qui sollicite la broche de frein (5) vers la position de verrouillage ; et un élément de limitation (8) qui vient en prise avec la broche de frein (5) réglé dans la position de verrouillage, et empêche la broche de frein (5) de se déplacer vers la position de libération.
PCT/JP2018/041147 2017-11-20 2018-11-06 Mécanisme de verrouillage pour dispositif de guidage de mouvement et dispositif de guidage de roulement l'utilisant Ceased WO2019098090A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017222975A JP2019094945A (ja) 2017-11-20 2017-11-20 運動案内装置のロック機構及びこれを用いた転がり案内装置
JP2017-222975 2017-11-20

Publications (1)

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WO2019098090A1 true WO2019098090A1 (fr) 2019-05-23

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PCT/JP2018/041147 Ceased WO2019098090A1 (fr) 2017-11-20 2018-11-06 Mécanisme de verrouillage pour dispositif de guidage de mouvement et dispositif de guidage de roulement l'utilisant

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JP (1) JP2019094945A (fr)
WO (1) WO2019098090A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63146086A (ja) * 1986-12-10 1988-06-18 Toshiba Corp 記録装置
JPH04183680A (ja) * 1990-11-16 1992-06-30 Hino Motors Ltd 前後輪操舵車の後輪ステアロック装置
JPH10244976A (ja) * 1997-03-07 1998-09-14 Kubota Corp 歩行型作業機のハンドル支持装置
JP2005152574A (ja) * 2003-11-07 2005-06-16 Takara Belmont Co Ltd 理美容用椅子
JP2010175003A (ja) * 2009-01-30 2010-08-12 Nsk Ltd リニアガイド装置のスライダ抜け止め用ストッパー

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63146086A (ja) * 1986-12-10 1988-06-18 Toshiba Corp 記録装置
JPH04183680A (ja) * 1990-11-16 1992-06-30 Hino Motors Ltd 前後輪操舵車の後輪ステアロック装置
JPH10244976A (ja) * 1997-03-07 1998-09-14 Kubota Corp 歩行型作業機のハンドル支持装置
JP2005152574A (ja) * 2003-11-07 2005-06-16 Takara Belmont Co Ltd 理美容用椅子
JP2010175003A (ja) * 2009-01-30 2010-08-12 Nsk Ltd リニアガイド装置のスライダ抜け止め用ストッパー

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