WO2012099312A1 - Tambour de frein pour siège de véhicule - Google Patents

Tambour de frein pour siège de véhicule Download PDF

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Publication number
WO2012099312A1
WO2012099312A1 PCT/KR2011/006698 KR2011006698W WO2012099312A1 WO 2012099312 A1 WO2012099312 A1 WO 2012099312A1 KR 2011006698 W KR2011006698 W KR 2011006698W WO 2012099312 A1 WO2012099312 A1 WO 2012099312A1
Authority
WO
WIPO (PCT)
Prior art keywords
torsion spring
locking end
arm portion
arm
drum
Prior art date
Application number
PCT/KR2011/006698
Other languages
English (en)
Korean (ko)
Inventor
팽현성
김태철
주재경
Original Assignee
주식회사 오스템
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 주식회사 오스템 filed Critical 주식회사 오스템
Publication of WO2012099312A1 publication Critical patent/WO2012099312A1/fr

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/02—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as one or more circumferential band
    • 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
    • F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/224—Stepwise movement mechanisms, e.g. ratchets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/919—Positioning and locking mechanisms
    • B60N2/933—Positioning and locking mechanisms rotatable
    • B60N2/943—Stepwise movement mechanisms, e.g. ratchets

Definitions

  • the present invention relates to a brake drum which is applied to a height adjusting device of a vehicle seat or the like.
  • FIG. 1 is an exploded perspective view showing a conventional brake drum (Japanese Patent Laid-Open No. Hei 1-82637, published on July 20, 1989), in which two springs 3 and 5 are inserted in close contact with the inner wall surface of the drum 1.
  • a conventional brake drum Japanese Patent Laid-Open No. Hei 1-82637, published on July 20, 1989
  • the springs 3 or 5 on one side are contacted and released to rotate together to rotate the inner protrusions 14.
  • the pinion 13 eventually rotates integrally.
  • the pinion 13 rotates the sector gear (not shown) engaged with it and lifts or lowers the seat cushion frame (not shown) through the rotation of the link structure.
  • FIG. 2 is a plan view illustrating a coupled state of the brake drum of FIG. 1.
  • the unit cost increases, and thus, the weight of the entire brake drum becomes heavy.
  • FIG. 3 is an exploded perspective view showing another conventional brake drum (Korean Patent Registration No. 901302, registered date: 2009.06.01.), And two protrusions 13 and 14 are formed on the gear assembly 10. It is acknowledged that the locking ends of the two springs 50 and 60 contributed to the reduction of play, but the number of springs 40, 50 and 60 increased to three, resulting in an increase in the total number of parts. 40, 50, and 60 have a problem in that the increase in the unit cost and the difficulty in assembling have been added as they have to be molded in different shapes.
  • FIG. 4 is a plan view illustrating a coupled state of the brake drum of FIG. 3.
  • FIG. 5 is a side view illustrating the springs 40 and 50 and the holder core 20 inserted into the drum 30 of FIG. 3.
  • the upper and lower springs 40 and 50 stacked in the drum 30 correspond to the circumferential direction.
  • the section forms an empty space (A), which causes movement of the springs 40 and 50 and movement of the gear assembly 10 to the holder core 20, resulting in a deterioration of product quality. There was a problem.
  • An object of the present invention is to provide a brake drum for a vehicle seat which can minimize the occurrence of clearance due to the clearance between parts and reduce weight in terms of the number of parts and materials and at the same time improve the parts cost and assembly.
  • the present invention provides a brake drum for a vehicle seat comprising: a cylindrical cover drum; A first torsion spring inserted in close contact with an inner circumferential surface of the cover drum and protruding from the first outer locking end and the first inner locking end by a predetermined distance in a circumferential direction; A second inner locking end portion which is inserted to be in close contact with an inner circumferential surface of the cover drum and is stacked on the first torsion spring, and is disposed in the same line as the first inner locking end portion, and the first outer locking end portion; A second torsion spring protruding from the second inner locking end portion and the second outer locking end portion interposed between the first inner locking end portion so as to be spaced apart a predetermined distance in the circumferential direction; It is integrally coupled to the input shaft penetrating the cover drum and is inserted into the first and second torsion springs in the cover drum, and is spaced apart from the circumferentially outer side of the first outer locking end of the first to
  • a holder core having a first arm portion and a second arm portion spaced apart from each other by a circumferential outer side of the second outer locking end portion of the second torsion spring; And a pinion through which the input shaft, which is integrally coupled to the holder core, is rotatably penetrated, a plate surface portion integrally coupled to the pinion, and bent from one side of the plate surface portion to extend in the axial direction, wherein the first arm portion and the And an output member having an extension bend extending between the arm portions and having a pair of insertion grooves formed therein, the first inner locking end of the first torsion spring and the second inner locking end of the second torsion spring, respectively.
  • a brake drum for a vehicle seat is provided.
  • the output member has a second extension bending portion extending in the axial direction at a position opposite to the extension bending portion in the circumferential direction, the second extension bending portion is the first arm portion and the second arm portion of the holder core Extending therebetween may be arranged to be spaced apart from the first arm portion and the second arm portion in a circumferential direction.
  • first torsion spring and the second torsion spring may have springs having the same shape and be inserted and stacked on the inner circumferential surface of the cover drum in opposite directions.
  • the first outer locking end portion of the first torsion spring may be rounded toward the first arm portion such that the rounded end portion is pressed against the first arm portion when the first arm portion rotates close to the first arm portion.
  • the second outer locking end portion of the torsion spring may be rounded toward the second arm portion such that the rounded end portion is pressed against the second arm portion during rotational approach of the second arm portion.
  • the holder core may be formed with a plurality of protrusions extending in the axial direction on each outer peripheral surface of the first arm portion and the second arm portion in contact with the first and second torsion springs.
  • the brake drum for a vehicle seat since the inner engaging end portions of the first torsion spring and the second torsion spring are arranged on the same line, the displacement during elastic deformation can be minimized. Since the number of springs in the laminated section of the second torsion spring can be kept as constant as possible and the operating section of the spring can be limited to a specific section in the circumferential direction, it is possible to induce a stable operation of the whole part.
  • the first and second torsion springs can be provided with the same spring to each other to improve the parts cost and assembly aspects, furthermore the number and assembly of the whole parts Simplification in aspect and light weight in weight can be achieved.
  • FIG. 1 is an exploded perspective view of a conventional brake drum for a vehicle seat
  • FIG. 2 is a plan view illustrating a coupled state of the brake drum for a vehicle seat of FIG. 1;
  • FIG. 3 is an exploded perspective view of another conventional brake drum for a vehicle seat
  • FIG. 4 is a plan view showing a coupled state of the brake drum for a vehicle seat of FIG.
  • FIG. 5 is a partial coupling view showing a coupling state between some components of the brake drum for a vehicle seat of FIG. 3;
  • FIG. 6 is an exploded perspective view of a brake drum for a vehicle seat according to an embodiment of the present invention.
  • FIG. 7 is a plan view illustrating a coupled state of the brake drum for a vehicle seat of FIG. 6;
  • FIG. 8 is a partial coupling view showing a coupling state between some components of the brake drum for a vehicle seat of FIG. 6;
  • 9 to 11 and 12 and 13 are a plan view for explaining the operation of the brake drum for the vehicle seat of Figure 6,
  • a brake drum for a vehicle seat includes a cylindrical cover drum 110 and first and second torsions accommodated in the cover drum 110.
  • Springs 120 and 130, holder cores 140 received inside of these received torsion springs 120 and 130 and integrally coupled to the input shaft 160 and penetrate the input shaft 160 on the holder core 140. It is configured to include an output member 150 to be coupled.
  • the first torsion spring 120 and the second torsion spring 130 are sequentially inserted and stacked on the inner circumferential surface of the cover drum 110 in a direction in which springs having the same shape are opposite to each other.
  • Each of the torsion springs 120 and 130 is inserted in the compressed state when the cover drum 110 is inserted into the cover drum 110.
  • Each of the first torsion springs 120 and the second torsion springs 130 has an inner locking end portion 121 and 131 and an outer locking end portion 122 and 132 which are formed to protrude from each other in a circumferential direction.
  • the two torsion springs 120 and 130 stacked up and down have a stable structure laminated with spring windings of three upper and three lower windings and a total of six windings in the circumferential direction (see FIG. 7).
  • each of the inner engaging end portions 121 and 131 to be interacted with the output member 150 to be described later only acts in the circumferential direction within a limited range of position movement by the spring winding wound up and down. Compared to this, a much more stable operation is possible.
  • FIG. 7 is a plan view showing the assembled state of the brake drum 100 for a vehicle seat according to an embodiment of the present invention, according to the insertion structure of the torsion spring (120, 130), both springs (120, 130) in the circumferential direction
  • the inner locking end portions 131 and 121 are sequentially interposed between the outer locking end portions 122 and 132 of FIG.
  • the holder core 140 is integrally formed to the left and right of the main body 141 in which the input shaft 160 is inserted and coupled, and the first arm portion 142 and the second arm portion 143 are spaced 180 degrees apart from each other. It is formed spaced apart.
  • the 1st arm part 142 and the 2nd arm part 143 are extended in the circumferential direction so that it has a center angle of about 90 degrees.
  • the holder core 140 is inserted into the first and second torsion springs 120 and 130 inside the cover drum 110.
  • both the first arm portion 142 and the second arm portion 143 of the engaging ends 121, 122, 131, and 132 on the side of the torsion spring 120 and 130 are inserted by the holder core 140. It is interposed between).
  • the outer locking end 122 of the first torsion spring 120 is directly adjacent to the first arm portion 142 and is spaced apart from each other by a predetermined interval, and likewise the outer locking end of the second torsion spring 130 ( The 132 are directly adjacent to the second arm portion 143 and are spaced apart from each other by a predetermined interval.
  • the holder core 140 may be made of an injection molding of plastic synthetic resin to achieve the effect of weight reduction as a whole.
  • the output member 150 is integrally coupled with the pinion (pinion, 170) through the central plate surface portion 151, and as the plate surface portion 151 and pinion 170
  • the input shaft 160 is rotatably inserted therethrough.
  • An extended bending part 152 is formed to extend above the plate surface part 151 to extend in the axial direction.
  • the extended bent portion 152 extends between the first arm portion 142 and the second arm portion 143 by engagement with the holder core 140 (see FIG. 7).
  • a pair of insertion grooves 152 are formed at the end of the extension bend 152 in the cover drum 110, as shown in Figure 7, the respective inner engaging of the torsion springs (120, 130) Coupling with the end (121, 131).
  • the output member 150 is provided with a second extension bend 153 extending axially from a position opposite to the extension bend 152 in the circumferential direction, that is, the lower end.
  • the second extension portion 153 When the second extension portion 153 is coupled to the holder core 140, as shown in FIG. 7, the second extension portion 153 extends and is interposed between the first arm portion 142 and the second arm portion 143.
  • the second extension bend 153 is disposed to be spaced apart from the first arm part 142 and the second arm part 143 by a predetermined interval in the circumferential direction, respectively.
  • the first arm portion 142 of the holder core 140 is rotated in a small clockwise direction, as shown in Figure 10, the first torsion spring (120 in Figure 6) side outer end 122 Contact and pressurization.
  • the first torsion spring 120 is somewhat compressed to a degree capable of flowing from the inner circumferential surface of the cover drum 110.
  • the second arm portion 143 of the holder core 140 rotates in a clockwise direction to contact and press the second extension portion 153 on the output member (150 in FIG. 6) through its lower end portion (FIG. 11). Reference).
  • the outer locking end portion 122 pressed by the first arm portion 142 almost simultaneously or sequentially contacts and presses the extension bending portion 152 at the upper end of the output member 150 side.
  • the second torsion spring 130 is compressed through the inner locking end portion 131 coupled with the extension bend 152, which is also the inner circumferential surface of the cover drum 110. It is possible to flow from.
  • the output member 150 rotates, and the pinion 170 also rotates integrally with the rotation of the output member 150.
  • the second arm portion 143 of the holder core 140 is rotated in the counterclockwise direction by a small amount, as shown in Figure 12, the second torsion spring (130 of Figure 6) the outer locking end 132 To pressurize.
  • the second torsion spring 130 is somewhat compressed to the extent that flow from the inner circumferential surface of the cover drum 110 is possible.
  • the first arm portion 142 of the holder core 140 rotates counterclockwise to contact and press the second extension portion 153 on the output member (150 in FIG. 6) through its lower end portion (FIG. 6). 13).
  • the outer locking end portion 132 pressed by the second arm portion 143 almost simultaneously or sequentially contacts and presses the extension bending portion 152 of the upper end of the output member 150.
  • the output member 150 rotates in the counterclockwise direction
  • the pinion 170 also rotates in the counterclockwise direction integrally with the rotation of the output member 150.
  • the outer end 122 of the first torsion spring 120 of FIG. 1 such that the end 122a of the rounded outer locking end 122 is applied to the first arm 142 when the first arm 142 rotates clockwise. Allow contact pressurization.
  • 14A and 14B respectively show the spring end portions 5A and 40 and the holder core side arm portions 7A, respectively, in the brake drum for vehicle seats (FIGS. 1 and 3) according to the prior art described above. 24) A comparative drawing showing the contact relationship between them.
  • the outer locking end (132 in FIG. 7) of the second torsion spring 130 is also rounded toward the second arm part 143 to allow the second arm part 143 to approach the rotation of the second arm part 143. The rounded end is pressed against the second arm portion 143.
  • the holder core 140 side first contacted with the first and second torsion springs 120 and 130.
  • the arm portion 142 and the second arm portion 143 are formed with a plurality of protrusion lines 142a extending in the axial direction on each outer circumferential surface thereof.
  • each holder core (20 of FIGS. 1 and 7 of FIG. 3) is freely rotated without friction with each outer spring, and thus a knob through each input shaft (not shown).
  • a knob through each input shaft (not shown).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)

Abstract

La présente invention porte sur un tambour de frein pour un siège de véhicule, l'invention comprenant : un tambour de couvercle ; un premier ressort de torsion qui vient en contact avec une surface interne du tambour de couvercle et a une première extrémité d'arrêt externe et une première extrémité d'arrêt interne ; un second ressort de torsion qui est empilé sur le premier ressort de torsion en venant en contact avec la surface interne du tambour de couvercle et a une seconde extrémité d'arrêt externe et une seconde extrémité d'arrêt interne, qui est disposée de manière adjacente sur la première extrémité d'arrêt interne sur la même ligne, la seconde extrémité d'arrêt interne et la première extrémité d'arrêt interne étant interposées entre la première extrémité d'arrêt externe et la seconde extrémité d'arrêt externe ; un noyau de support qui est introduit dans le côté interne des premier et second ressorts de torsion à l'intérieur du tambour de couvercle et a une première partie de bras qui est séparée du côté externe dans une direction circonférentielle de la première extrémité d'arrêt externe du premier ressort de torsion, et une seconde partie de bras qui est séparée du côté externe dans une direction circonférentielle de la seconde extrémité d'arrêt externe du second ressort de torsion ; et un élément de sortie qui a un pignon et une partie incurvée étendue ayant une paire de rainures d'introduction qui sont incurvées vers un côté et s'étendent dans une direction axiale, les rainures d'introduction s'étendent entre la première partie de bras et la seconde partie de bras de sorte que la première extrémité d'arrêt interne du premier ressort de torsion et la seconde extrémité d'arrêt interne du second ressort de torsion soient couplées. Ainsi, l'invention réduit au minimum la génération d'espaces provoquée par des espaces entre les composants, met en œuvre la légèreté en termes du nombre de composants et de matériaux, et, en même temps, l'invention améliore le prix unitaire des composants et l'efficacité d'assemblage.
PCT/KR2011/006698 2011-01-18 2011-09-09 Tambour de frein pour siège de véhicule WO2012099312A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0004745 2011-01-18
KR1020110004745A KR101271035B1 (ko) 2011-01-18 2011-01-18 차량 시트용 브레이크 드럼

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WO2012099312A1 true WO2012099312A1 (fr) 2012-07-26

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WO (1) WO2012099312A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101627641B1 (ko) * 2015-03-11 2016-06-08 주식회사 오스템 차량 시트용 펌핑디바이스
CN106467041A (zh) * 2015-08-14 2017-03-01 浦项奥斯特姆（苏州）汽车配件有限公司 用于车辆座椅的泵送装置
KR101702780B1 (ko) 2015-10-30 2017-02-03 주식회사다스 차량용 시트의 드럼 브레이크

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01182637A (ja) * 1988-01-13 1989-07-20 Oi Seisakusho Co Ltd ブレーキ機構
JP2001254765A (ja) * 2000-03-10 2001-09-21 Toyo Seat Co Ltd ドラムブレーキ装置
KR200238048Y1 (ko) * 1998-02-18 2001-09-25 엄기화 시트쿠션의역전방지구조체
KR100901302B1 (ko) * 2008-12-12 2009-06-09 (주)케이엠앤아이 회전유격방지용 브레이크 드럼

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0735831B2 (ja) * 1988-06-30 1995-04-19 株式会社大井製作所 ブレーキ機構
JP2594164Y2 (ja) * 1993-07-30 1999-04-19 デルタ工業株式会社 ブレーキ機構

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01182637A (ja) * 1988-01-13 1989-07-20 Oi Seisakusho Co Ltd ブレーキ機構
KR200238048Y1 (ko) * 1998-02-18 2001-09-25 엄기화 시트쿠션의역전방지구조체
JP2001254765A (ja) * 2000-03-10 2001-09-21 Toyo Seat Co Ltd ドラムブレーキ装置
KR100901302B1 (ko) * 2008-12-12 2009-06-09 (주)케이엠앤아이 회전유격방지용 브레이크 드럼

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KR20120083568A (ko) 2012-07-26

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