WO2019179000A1 - 自复位调节机构 - Google Patents

自复位调节机构 Download PDF

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Publication number
WO2019179000A1
WO2019179000A1 PCT/CN2018/098465 CN2018098465W WO2019179000A1 WO 2019179000 A1 WO2019179000 A1 WO 2019179000A1 CN 2018098465 W CN2018098465 W CN 2018098465W WO 2019179000 A1 WO2019179000 A1 WO 2019179000A1
Authority
WO
WIPO (PCT)
Prior art keywords
resetting
limiting member
adjusting member
limiting
self
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/CN2018/098465
Other languages
English (en)
French (fr)
Inventor
曹耀伟
徐东海
李侠
朱敏
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.)
Yanfeng Adient Seating Co Ltd
Original Assignee
Yanfeng Adient Seating 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 Yanfeng Adient Seating Co Ltd filed Critical Yanfeng Adient Seating Co Ltd
Priority to EP18910277.5A priority Critical patent/EP3715175B1/en
Priority to JP2020535137A priority patent/JP6948469B2/ja
Priority to RS20221192A priority patent/RS63938B1/sr
Priority to US16/959,935 priority patent/US11548422B2/en
Publication of WO2019179000A1 publication Critical patent/WO2019179000A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/06—Arrangements or adaptations of other passenger fittings, not otherwise provided for of footrests
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/865—Head-rests movable or adjustable providing a fore-and-aft movement with respect to the occupant's head
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/838—Tiltable
    • B60N2/841—Tiltable characterised by their locking devices
    • B60N2/844—Release mechanisms, e.g. buttons
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/838—Tiltable
    • B60N2/841—Tiltable characterised by their locking devices
    • B60N2/847—Tiltable characterised by their locking devices with stepwise positioning
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/838—Tiltable
    • B60N2/862—Tiltable with means for maintaining a desired position when the seat-back is adjusted, e.g. parallelogram mechanisms

Definitions

  • the invention relates to the field of automobile seat structure, and particularly relates to a self-reset adjustment mechanism.
  • the front seats of the car are usually equipped with headrests for a more comfortable ride.
  • the headrests are adjustable to accommodate passengers of different heights.
  • the adjustable headrests on the market have complicated design and high cost.
  • the unlocking mechanism needs a button to unlock, and the button unlocking is a relatively complicated force transmission process. During the unlocking process, the force loss is relatively large, and the unlocking force is difficult to control.
  • the object of the present invention is to overcome the defects of the prior art and provide a self-resetting adjustment mechanism, which solves the complicated structure of the existing adjustable headrest, high cost, and complicated force transmission, large loss and difficult to control. Etc.
  • the invention provides a self-reset adjustment mechanism, comprising:
  • An adjustment member rotatably mounted to the mount
  • the first resetting member generating a force opposite to a rotating direction of the adjusting member when the adjusting member rotates to reset the adjusting Piece
  • a limiting member rotatably mounted on the mounting seat, wherein one side of the limiting member corresponding to the adjusting member is provided with a plurality of card positions at different heights for limiting the adjusting member,
  • the adjusting member is disposed on the corresponding card holder, and the position adjustment of the adjusting member is realized, and the limiting member can be rotated together by the clamping device when the adjusting member is rotated;
  • the second resetting member generates a force opposite to the rotating direction of the limiting member when the limiting member rotates for resetting
  • the limiting member is deformed to generate the same force as the rotation direction of the limiting member when the limiting member is rotated to the limit position, so that the limiting member is at the limit position
  • the adjusting member is reset under the force of the first returning member, thereby applying a resetting force to the limiting member, so that the second resetting member is restored and the limiting member is reset.
  • the self-resetting adjustment mechanism of the invention can simplify the core structure of the headrest while ensuring the strength of the headrest, has a simple structure, small occupied space, simple assembly, large adjustment range and high impact strength.
  • the self-resetting adjustment mechanism of the invention adopts an automatic unlocking mode, which can save cost, and the unlocking process is simple and controllable.
  • a further improvement of the self-resetting adjustment mechanism of the present invention is that the limiting member is provided with a flange at the lowest position of the card table;
  • the adjusting member When the limiting member is in the extreme position, the adjusting member applies a resetting force to the limiting member by abutting against the flange during the resetting process, thereby completing the adjusting member and the limit Reset of the bit.
  • a further improvement of the self-resetting adjustment mechanism of the present invention is that the adjusting member is rotatably mounted to the mounting seat through a first rotating shaft;
  • An abutting surface is formed on a side of the limiting member adjacent to the first rotating shaft, and the limiting member is rotated until the abutting surface abuts against the first rotating shaft, so that the limiting member is at Extreme position.
  • a further improvement of the self-resetting adjustment mechanism of the present invention is that the first returning member is a torsion spring, and one end of the torsion spring is fixed to the adjusting member, and the other end is fixed to the mounting seat.
  • a further improvement of the self-resetting adjustment mechanism of the present invention is that the second returning member is a deformed torsion spring comprising a first connecting section, an arcuate section connected to the first connecting section, and a connecting to the arcuate section a second connecting section, the first connecting section and the second connecting section are located on two sides of the curved section and are arranged in parallel, the curved section is in an arc shape;
  • the first connecting segment is fixed to the limiting member, and the second connecting segment is fixed to the mounting seat.
  • a further improvement of the self-resetting adjustment mechanism of the present invention is that the limiting member is provided with a special-shaped opening;
  • the adjusting member is provided with a positioning rib passing through the shaped port;
  • the positioning ribs are in contact with the inner wall of the shaped opening to limit the rotation of the adjusting member.
  • a further improvement of the self-resetting adjustment mechanism of the present invention is that the mounting base includes a bottom plate; and a side of the limiting member adjacent to the bottom plate is provided with a bonding surface that abuts the bottom plate.
  • a further improvement of the self-resetting adjustment mechanism of the present invention is that the bottom of the adjusting member is formed with a latching surface for being snapped onto the corresponding card table.
  • a further improvement of the self-resetting adjustment mechanism of the present invention is that a connecting shaft is disposed at an end of the adjusting member away from the mounting seat, and both ends of the connecting shaft are connected with an ear plate.
  • a further improvement of the self-resetting adjustment mechanism of the present invention is that the utility model further comprises a transmission member disposed between the two ear plates and disposed opposite to the adjusting member, the top of the transmission member is fixedly connected with the two ear plates, and the bottom portion is rotatable The grounding member is mounted on the mounting seat, and the adjusting member is driven to rotate by the transmission member.
  • the invention can be applied to a headrest, an armrest, a leg rest, and a footrest in the automobile field.
  • FIG. 1 is a schematic structural view of a self-resetting adjustment mechanism of the present invention.
  • FIG. 2 is a schematic exploded view of the structure of FIG. 1.
  • FIG. 3 is a schematic structural view of the other side of the self-resetting adjustment mechanism of the present invention.
  • Figure 4 is a cross-sectional view of the self-resetting adjustment mechanism of the present invention.
  • FIG. 5 is a schematic structural view showing the second reset member after the adjustment member is omitted in the self-resetting adjustment mechanism of the present invention.
  • FIG. 6 is a schematic structural view of the self-reset adjustment mechanism of the present invention at the lowest position of the card.
  • Fig. 7 is a structural schematic view showing the second reset member in a state shown in Fig. 6.
  • FIG. 8 is a schematic structural view of a self-reset adjustment mechanism adjustment process of the present invention.
  • Figure 9 is a partially enlarged schematic view showing the junction of the adjusting member and the limiting member in the state shown in Figure 8.
  • Fig. 10 is a structural schematic view showing the second reset member in a state shown in Fig. 8.
  • Figure 11 is a schematic view showing the structure of the self-reset adjustment mechanism in the first gear position of the present invention.
  • Figure 12 is a schematic view showing the structure of the self-reset adjustment mechanism at the highest position of the card table of the present invention.
  • FIG. 13, FIG. 18 and FIG. 20 are schematic exploded views of the resetting process of the self-reset adjusting mechanism of the present invention.
  • Fig. 14 is a partially enlarged schematic view showing the contact portion of the adjusting member and the limiting member in the state shown in Fig. 13.
  • Figure 15 is a schematic view showing the structure of the second reset member in a state shown in Figure 13;
  • Fig. 16 is a view showing the overall structure of the state shown in Fig. 13.
  • Figure 17 is a partially enlarged schematic view of the positioning rib and the shaped opening of Figure 16;
  • Fig. 19 is a structural schematic view showing the second return member in a state shown in Fig. 18 in a state shown in Fig. 18.
  • Figure 21 is a partially enlarged schematic view showing the junction of the adjusting member and the limiting member in the state of the plastic stone of Figure 20.
  • the present invention provides a self-resetting adjustment mechanism for reducing the strength of a headrest while simplifying the core mechanism of the headrest.
  • the self-resetting adjustment mechanism is applied to a headrest of a car seat, and can realize adjustment of the headrest. And automatic reset, simple operation method, small space, simple assembly, large adjustment range, high impact strength of the economical headrest core.
  • the self-resetting adjustment mechanism of the present invention is not limited to application to a headrest, and can be applied to an adjustable portion such as an armrest, a leg rest, and a pedal in the automobile field.
  • the self-resetting adjustment mechanism of the invention replaces the plastic material of the traditional headrest core bracket with a metal material bracket, so that the structure is simple and compact, meets the strength requirement, is light in weight, and saves material and saves cost.
  • the invention adopts the method of automatic unlocking, realizes the purpose of cost saving, and maintains the integrity of the appearance, so that it is simple, beautiful and efficient and controllable.
  • FIG. 1 there is shown a schematic structural view of the self-resetting adjustment mechanism of the present invention.
  • FIG 2 there is shown a schematic exploded view of the structure of Figure 1.
  • the self-reset adjustment mechanism of the present invention will now be described with reference to Figs. 1 and 2.
  • the self-resetting adjustment mechanism 20 of the present invention includes a mounting seat 21, an adjusting member 22, a first returning member 23, a limiting member 24, and a second returning member 25, and the mounting seat 21 is provided for each component.
  • the mounting base 22 is rotatably mounted on the mounting seat 21, and the first resetting member 23 is mounted between the adjusting member 22 and the mounting seat 21, and the first resetting member 23 generates and adjusts the adjusting member 22 when the adjusting member 22 rotates.
  • the opposite direction of rotation is used to reset the adjusting member 22; the limiting member 24 is rotatably mounted on the mounting seat 21, as shown in FIG.
  • the limiting member 24 is located on one side of the corresponding adjusting member 22
  • the plurality of latches 241 of the height adjusting member 22 are locked on the corresponding card table 241 of the limiting member 24 by the adjusting member 22, thereby realizing the position adjustment of the adjusting member 22, and when the adjusting member 22 is rotated
  • the limiting member 24 can be rotated together by the plurality of card holders 241 of different heights; the second resetting member 25 is installed between the limiting member 24 and the mounting seat 21, and the second resetting member 25 is generated when the limiting member 24 rotates.
  • the force opposite to the direction of rotation of the limiting member 24 is for the limiting member 24 to be reset;
  • the second returning member 25 is deformed to generate the same force as the direction of rotation of the limiting member 24, so that the limiting member 24 is in the limit position, and the force of the adjusting member 22 at the first returning member 23 is at this time.
  • the lowering is reset, thereby applying a resetting force to the limiting member 24, so that the second resetting member 25 is restored and the limiting member 24 is reset.
  • the self-resetting adjustment mechanism 20 of the present invention is mounted on a headrest of an automobile seat, wherein the adjusting member 22 is fixedly connected with the headrest, and the mounting seat 21 is connected with the car seat through the adjusting member.
  • the rotation of 22 realizes the position adjustment of the headrest.
  • the mount 21 has a front side 211 and a rear side 212, and the adjustment direction of the adjustment member 22 is rotated from the rear side 212 to the front side 211, and the reset direction is a rotation reset from the front side 211 to the rear side 212.
  • the initial adjusting member 22 is located on the lowermost card table 241 of the limiting member 24 , and the locking plate 241 on the limiting member 24 is arranged in a stepped manner, and the adjusting member 22 is rotated around the mounting seat 21 .
  • the adjusting member 22 is rotated from the lowest position of the card table 241 to the card table 241 of the first gear position, and the adjusting member 22 pushes the limiting member 24 to rotate together, and when the limiting member 24 rotates,
  • the two reset members 25 generate a force opposite to the direction of rotation thereof. As shown in FIG.
  • the adjusting member 22 is continuously rotated to push the limiting member 24 to the limit position, as shown in FIG.
  • the two reset members 25 are deformed to generate the same force as the rotation direction of the limiting member 24, so that the limiting member 24 is at the extreme position, and the locking block 241 and the adjusting member 22 on the limiting member 24 at the extreme position There is a certain gap, so that the card 241 does not limit the adjusting member 22, and at this time, the rotational force applied to the adjusting member 22 is released, and the adjusting member 22 will fall back to the original position under the force of the first returning member 23. As shown in FIG.
  • the limiting member 24 is touched to apply a resetting force to the limiting member 24, so that the second reset member 25 is restored and the limiting member 24 is reset.
  • the self-reset adjustment mechanism is reset to the state shown in FIG.
  • the limiting member 24 is provided with a flange 242 at the lowest position of the card table 241, and the flange 242 is correspondingly adjusted on the limiting member 24.
  • One side of the member 22 is outwardly protruded.
  • the top end surface of the flange 242 protrudes from the outer end surface of the card table 241, in combination with FIG. 20 and FIG. As shown in FIG.
  • the adjusting member 22 applies a resetting force to the limiting member 24 by abutting against the flange 242 during the resetting process, thereby completing the adjusting member 22 and the limiting member. 24 reset.
  • the flange 242 is disposed to block the fallback of the adjustment member 22 such that the limit of the flange 242 enables the adjustment member 22 to be snapped onto the lowermost card table 241.
  • the adjusting member 22 is rotatably mounted on the mounting seat 21 via the first rotating shaft 31, and the first rotating shaft 31 is passed through the adjusting member 22 and the mounting seat. 21, so that the adjusting member 22 can be adjusted by the first rotating shaft 31; as shown in FIG. 6, a side of the limiting member 24 adjacent to the first rotating shaft 31 is formed with an abutting surface 243, as shown in FIG. When the limiting member 24 is rotated to abut against the first rotating shaft 31, the limiting member 24 is in the extreme position.
  • the limiting member 24 is rotatably mounted on the mounting seat 21 via the second rotating shaft 33.
  • the second rotating shaft 33 passes through the limiting member 24 and the mounting seat 21, so that the limiting member 24 can be rotated by the second rotating shaft 33.
  • the limiting member 24 is mounted near the rear side 212 of the mounting seat 21, and the adjusting member 22 is mounted at the middle of the mounting seat 21 such that the adjusting member 22 is located at the front side of the limiting member 24, such that the limiting member 24
  • the first rotating shaft 31 functions as a limit.
  • the limiting member 24 is rotated against the first rotating shaft 31, the limiting member 24 is in the limit position due to the limitation of the first rotating shaft 31.
  • the first reset member 23 is a torsion spring having a first mounting end 231 and a second mounting end 232, and the first mounting end 231 It is fixed to the adjusting member 22, and the second mounting end 232 is fixed to the mounting seat 21.
  • the torsion spring generates an elastic force opposite to the direction in which the adjustment member 22 rotates.
  • a mounting hole 223 is defined in a side portion of the adjusting member 22.
  • the first mounting end 231 of the torsion spring is inserted into the mounting hole 223 and fixed.
  • the front side 211 of the mounting seat 21 is provided with a bayonet 216, which is twisted.
  • the second mounting end 232 of the spring snaps into the bayonet 216 and is secured.
  • the second reset member 25 is a deformed torsion spring, and includes a first connecting portion 251, an arc segment 252 connected to the first connecting portion 251, and Connected to the second connecting section 253 of the curved section 252, the first connecting section 251 and the second connecting section 253 are located on both sides of the curved section 252 and are arranged in parallel, and the curved section 252 has an arc shape.
  • the first connecting portion 251 is fixed to the limiting member 24, and the second connecting portion 253 is fixed to the mounting seat 21.
  • a through hole 246 is defined in the limiting member 24, the first connecting portion 251 is inserted into the through hole 246 and fixed; and a rear plate is provided at the rear side 212 of the mounting seat 21. 215, the vertical plate 215 is also provided with a through hole, the second connecting portion 253 is inserted into the through hole of the vertical plate 215 and fixed, after the first connecting portion 251 and the second connecting portion 253 of the shaped torsion spring are fixed, The curved section 252 is attached to the surface of the limiting member 24.
  • the working principle of the deformed torsion spring is as follows: as shown in FIG. 7, in the initial state, that is, the adjusting member 22 is snapped onto the lowest position of the card table 241, between the first connecting portion 251 and the second connecting portion 253.
  • the shaped torsion spring is in a natural state; as shown in FIG. 10, when the adjusting member 22 rotates to drive the limiting member 24 to rotate, the limiting member 24 rotates about the second rotating shaft 33, and the rotating direction is FIG.
  • the first connecting portion 251 approaches toward the second connecting portion 253, and the curved portion 252 is deformed to generate an elastic force to restore the original shape, and is curved when the adjusting member 22 is rotated to the card table 241 of the first gear position.
  • the elastic force of the segment 252 causes the limiting member 24 to rotate back to the original position, so that the card table 241 of the first gear position and the adjusting member 22 are engaged. 12 to 15, when the adjusting member 22 is located on the highest position of the card table 241 and continues to rotate counterclockwise, the limiting member 24 is further rotated.
  • the first connecting portion 251 is further adjacent to the first connecting portion 251.
  • the force of the limiting member 24, that is, the curved portion 252 generates the same force as the counterclockwise rotation direction of the limiting member 24, so that the abutting surface 243 of the limiting member 24 abuts against the first rotating shaft 31. Therefore, the plurality of clamping posts 241 do not limit the adjusting member 22.
  • the adjusting member 22 After the adjusting member 22 contacts the applied rotational force, it will rotate clockwise under the action of the torsion spring, and when the bottom of the adjusting member 22 touches the limit
  • the force of the timing member 24 is rotated clockwise, so that the limiting member 24 rotates clockwise, and the first connecting portion 251 moves away from the second connecting portion 253, thereby being curved.
  • the segment 252 recovers the deformation, which in turn creates a clockwise direction to the stop member 24. Force, so that the stopper member 24 is reset, thereby regulating member 22 and the stopper member 24 returns to the state shown in FIG. 6.
  • FIG. 6, FIG. 16, and FIG. 17 in order to prevent the adjustment member 22 from rotating excessively, it is detached from one side of the stopper member 24, and the stopper member 24 of the present invention.
  • the upper opening is provided with a shaped opening 244, and the adjusting member 22 is provided with a positioning rib 221 passing through the shaped opening 244.
  • the positioning rib is provided.
  • the 221 is in contact with the inner wall of the shaped port 244 to rotate the limit adjusting member 22, that is, the relative rotation between the limit adjusting member 22 and the limiting member 24.
  • the positioning rib 221 when the adjusting member 22 continues to rotate counterclockwise, the positioning rib 221 cooperates with the inner wall of the shaped port 244 to drive the limiting member 24 to rotate together, and the positioning rib 221 and the shaped port 244 are provided.
  • the adjustment member 22 and the limit member 24 can be separated from each other.
  • the mounting seat 21 includes a bottom plate 213.
  • a side of the limiting member 24 adjacent to the bottom plate 213 is provided with a bonding surface 245 attached to the bottom plate 213, in an initial state.
  • the adjusting member 22 is caught on the lowermost card table 241, and the abutting surface 245 is fitted to the bottom plate 213 of the mounting seat 21, so that the self-resetting adjustment mechanism 20 has high stability.
  • FIG. 8 when the adjusting member 22 adjusts the gear position, the adjusting member 22 abuts against the limiting member 24 to rotate the limiting member 24 counterclockwise, and the abutting surface 245 is away from the bottom plate 213 , as shown in FIG. 9 and FIG.
  • the mounting seat 21 of the present invention is provided with a pair of wings 214 on the bottom plate 213.
  • the adjusting member 22 and the limiting member 24 are mounted by a pair of wings 214, and the adjusting member 22 is improved by using a pair of oppositely disposed wings 214. Structural stability of the mounting of the limiting member 24.
  • the mounting seat 21 has a U-shaped structure.
  • the mounting seat 21 of the present invention may have other shapes, such as a square shape.
  • the bottom of the adjusting member 22 is formed with a latching surface 222 for latching on the corresponding card table 241.
  • the adjusting member 22 is provided.
  • the card engaging surface 222 is latched on the card table 241 of the limiting member 24, and the carding surface 222 is supported by the card table 241 to limit the position of the adjusting member 22.
  • the engaging surface 222 is disposed at the bottom of the adjusting member 22.
  • the adjusting member 22 includes an adjusting plate having a bottom forming the engaging surface 222, and connecting connecting wings for connecting the two sides of the adjusting plate, connecting the bottom of the wing
  • the bottom and the top of the adjusting plate are formed with a connecting end portion, and the connecting end of the first rotating shaft 31 through the bottom and the mounting seat 21 enable the adjusting member 22 to be rotatably mounted on the mounting seat 21.
  • a connecting shaft 32 is disposed at a connecting end portion of the top of the adjusting member 22, and an ear plate 26 is connected to both ends of the connecting shaft 32.
  • the adjusting member 22 and the two ear plates 26 are connected through the connecting shaft 32 as shown in FIG.
  • two ear plates 26 are provided on both sides of the top of the adjusting member 22, and the self-resetting adjustment mechanism 20 of the present invention is connected to the headrest through the ear plate 26.
  • the mounting seat 21 of the self-resetting adjustment mechanism 20 of the present invention is used to mount the headrest to the car seat.
  • the self-resetting adjustment mechanism 20 further includes a transmission member 27 disposed between the two ear plates 26 and disposed opposite the adjustment member 22, the top of the transmission member 27 and the two ear plates 26
  • the fixed connection preferably, the top of the connecting lug 26 and the transmission member 27 is fastened by the rivet 35, and the bottom of the transmission member 27 is rotatably mounted to the mounting seat 21, and the adjusting member 22 is rotated by the transmission member 27.
  • the transmission member 27 acts as an active arm and transmits the force of the headrest to the adjustment member 22.
  • the bottom of the transmission member 27 is rotatably mounted on the mounting seat 21 via the third rotating shaft 34.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

一种自复位调节机构（20），包括：安装座（21）；可转动地安装于安装座（21）的调节件（22）；安装于调节件（22）和安装座（21）之间的第一复位件；可转动地安装于安装座（21）的限位件，限位件上对应调节件（22）设有位于不同高度多个卡台，通过调节件（22）卡设于限位件对应的卡台上实现调节件（22）的位置调节；以及安装于限位件和安装座（21）之间的第二复位件，在限位件转动至极限位置时，第二复位件发生形变而产生与限位件转动方向相同的作用力而令限位件处于极限位置，此时第一复位件令调节件（22）下复位，并对限位件施加复位的作用力，使得第二复位件复原且限位件复位。该自复位调节机构在保证头枕强度的同时精简头枕核心机构，结构简单，占用空间小，调节范围大，耐冲击强度高。

Description

自复位调节机构 技术领域
本发明涉及汽车座椅结构领域，特指一种自复位调节机构。
背景技术
汽车前排座椅通常设有头枕，为提供更加舒适的乘车体验，该头枕为可调节结构，以适应不同高度的乘客使用。现有市面上的可调节头枕，设计的结构复杂，成本较高。且解锁机构需要按钮进行解锁，按钮解锁是一套比较复杂的力传递过程，解锁过程中力的折损比较大，解锁力难控制。
发明内容
本发明的目的在于克服现有技术的缺陷，提供一种自复位调节机构，解决现有的可调节头枕的结构复杂，成本较高以及按钮解锁存在的力传递复杂、折损大且难控制等的问题。
实现上述目的的技术方案是：
本发明提供了一种自复位调节机构，包括：
安装座；
可转动地安装于所述安装座的调节件；
安装于所述调节件和所述安装座之间的第一复位件，所述第一复位件在所述调节件转动时产生与所述调节件转动方向相反的作用力以供复位所述调节件；
可转动地安装于所述安装座的限位件，所述限位件上对应所述调节件的一侧设有位于不同高度、且供限位所述调节件的多个卡台，通过所述调节件卡设于所述限位件对应的卡台上，实现所述调节件的位置调节，且在转动所述调节件时可通过卡台带动所述限位件一起转动；以及
安装于所述限位件和所述安装座之间的第二复位件，所述第二复位件在所述限位件转动时产生与所述限位件转动方向相反的作用力以供复位所述限位件，在所述限位件转动至极限位置时，所述第二复位件发生形变而产生与所述限位件转动方向相同的作用力而令所述限位件处于极限位 置，此时所述调节件在所述第一复位件的作用力下复位，从而对所述限位件施加复位的作用力，使得所述第二复位件复原且所述限位件复位。
本发明的自复位调节机构在保证头枕强度的同时精简头枕核心机构，结构简单，占用空间小，装配简单，调节范围大，耐冲击强度高。本发明的自复位调节机构采用了自动解锁的方式，能够节约成本，解锁过程简单可控。
本发明自复位调节机构的进一步改进在于，所述限位件于位于最低位的卡台处设有一凸缘；
所述限位件处于极限位置时，所述调节件在复位的过程中通过抵靠于所述凸缘而对所述限位件施加复位的作用力，从而完成所述调节件和所述限位件的复位。
本发明自复位调节机构的进一步改进在于，所述调节件通过第一转轴可转动地安装于所述安装座；
所述限位件靠近所述第一转轴的一侧形成有一抵靠面，转动所述限位件至所述抵靠面抵靠于所述第一转轴时，而使得所述限位件处于极限位置。
本发明自复位调节机构的进一步改进在于，所述第一复位件为扭簧，所述扭簧的一端固定于所述调节件上，另一端固定于所述安装座上。
本发明自复位调节机构的进一步改进在于，所述第二复位件为异形扭簧，包括第一连接段、与所述第一连接段连接的弧形段以及与连接于所述弧形段的第二连接段，所述第一连接段和所述第二连接段位于所述弧形段的两侧且平行设置，所述弧形段呈圆弧状；
所述第一连接段固定于所述限位件上，所述第二连接段固定于所述安装座上。
本发明自复位调节机构的进一步改进在于，所述限位件上开设有异形口；
所述调节件上设有穿过所述异形口的定位凸条；
当所述调节件卡设于所述限位件上位于最高位的卡台上时，所述定位凸条与所述异形口的内壁相贴合从而限位所述调节件的转动。
本发明自复位调节机构的进一步改进在于，所述安装座包括有底板；所述限位件上靠近底板的一侧设有与所述底板相贴的贴合面。
本发明自复位调节机构的进一步改进在于，所述调节件的底部形成有 供卡设于对应的卡台上的卡接面。
本发明自复位调节机构的进一步改进在于，所述调节件上远离所述安装座的一端设有连接轴，所述连接轴的两端部均连接有一耳板。
本发明自复位调节机构的进一步改进在于，还包括置于两个耳板之间并与所述调节件相对设置的传动件，所述传动件的顶部与两个耳板固定连接，底部可转动地安装于所述安装座，通过所述传动件带动所述调节件进行转动。
本发明可以应用于汽车领域的头枕、扶手、腿托、脚踏。
附图说明
图1为本发明自复位调节机构的结构示意图。
图2为图1所示结构的爆炸分解结构示意图。
图3为本发明自复位调节机构的另一侧的结构示意图。
图4为本发明自复位调节机构的剖视图。
图5为本发明自复位调节机构中省去调节件后显露出第二复位件的结构示意图。
图6为本发明自复位调节机构处于最低位的卡台处的结构示意图。
图7为图6所示状态下透视出第二复位件的结构示意图。
图8为本发明自复位调节机构调节过程的结构示意图。
图9为图8所示状态下调节件和限位件相接处的局部放大示意图。
图10为图8所示状态下透视出第二复位件的结构示意图。
图11为本发明自复位调节机构处于第一档位的卡台处的结构示意图。
图12为本发明自复位调节机构处于最高位的卡台处的结构示意图。
图13、图18和图20为本发明自复位调节机构复位过程的分解结构示意图。
图14为图13所示状态下调节件和限位件相接处的局部放大示意图。
图15为图13所示状态下透视出第二复位件的结构示意图。
图16为图13所示状态的整体结构示意图。
图17为图16中定位凸条和异形口处的局部放大示意图。
图19为图18所示状态下所示状态下透视出第二复位件的结构示意图。
图21为图20塑石状态下调节件和限位件相接处的局部放大示意图。
具体实施方式
下面结合附图和具体实施例对本发明作进一步说明。
参阅图1，本发明提供了一种自复位调节机构，为一种保证头枕强度的同时精简头枕的核心机构，该自复位调节机构应用于汽车座椅头枕，能够实现头枕的调节和自动复位，简单的操作方法，所占空间小，装配简单，调节范围大，耐冲击强度高的经济型头枕核心件。本发明的自复位调节机构不限于应用在头枕上，还可以应用于汽车领域的扶手、腿托以及脚踏等可调节的部位。本发明自复位调节机构采用金属材料支架代替传统的头枕核心支架的塑料材料，使得结构简单小巧，满足强度要求，重量轻，节省材料节约成本。本发明采用自动解锁的方式，实现了节约成本的目的，并保持了外观的完整性，使得简单，美观及高效可控。下面结合附图对本发明自复位调节机构进行说明。
参阅图1，显示了本发明自复位调节机构的结构示意图。参阅图2，显示了图1所示结构的爆炸分解结构示意图。下面结合图1和图2，对本发明自复位调节机构进行说明。
如图1和图2所示，本发明的自复位调节机构20包括安装座21、调节件22、第一复位件23、限位件24以及第二复位件25，安装座21为各个部件提供安装基础；调节件22可转动地安装于安装座21上，第一复位件23安装于调节件22和安装座21之间，该第一复位件23在调节件22转动时产生与调节件22转动方向相反的作用力以供复位该调节件22；限位件24可转动地安装于安装座21上，结合图5所示，该限位件24上对应调节件22的一侧设有位于不同高度且供限位调节件22的多个卡台241，通过调节件22卡设于限位件24对应的的卡台241上，实现调节件22的位置调节，且在转动调节件22时可通过不同高度的多个卡台241带动限位件24一起转动；第二复位件25安装于限位件24和安装座21之间，该第二复位件25在限位件24转动时产生与限位件24转动方向相反的作用力以供限位件24复位；在限位件24转动至极限位置时，该第二复位件25发生形变而产生与限位件24转动方向相同的作用力而令限位件24处于极限位置，此时调节件22在第一复位件23的作用力下复位，从而对限位件24施加复位的作用力，使得该第二复位件25复原且限位件24复位。
具体地，如图1和图3所示，本发明的自复位调节机构20安装于汽车座椅头枕上，其中调节件22与头枕固定连接，安装座21与汽车座椅连接，通过调节件22的转动实现了头枕的位置调节。安装座21具有前侧211和后侧212，调节件22的转动调节方向为从后侧212向前侧211转动，复位方向为从前侧211向后侧212转动复位。
下面对自复位调节机构20的转动调节过程进行说明。如图6所示，初始时调节件22位于限位件24的最低位的卡台241上，限位件24上的卡台241呈阶梯状设置，转动调节件22使其绕着安装座21进行转动，结合图8所示，调节件22从最低位的卡台241向第一档位的卡台241转动，调节件22推动限位件24也一同旋转，限位件24旋转时，第二复位件25产生与其转动方向相反的作用力，结合图9所示，当调节件22转动至第一档位的卡台241处时，结合图11所示，限位件24在第二复位件25的作用下复位，而使得调节件22卡入到第一档位的卡台241上；调节件22转动可依上述方式调节到所需的档位处，虽然第一复位件23一直都产生了与调节件22转动方向相反的作用力，由于调节件22与限位件24的卡台241相互卡合，使得调节件22在调节档位时无法复位。结合图12、图13和图18所示，当调节件22调节到最高位的卡台241后，继续转动调节件22，推动限位件24至极限位置，结合图18所示，此时第二复位件25发生形变而产生与限位件24转动方向相同的作用力，而使得该限位件24处于极限位置，在极限位置处的限位件24上的卡台241与调节件22件有一定的间隙，使得卡台241不会限位调节件22，此时松开施加于调节件22上的转动力，该调节件22会在第一复位件23的作用力下回落至原位，结合图20所示，在调节件22复位过程中会触碰到限位件24从而对限位件24施加复位的作用力，使得该第二复位件25复原且限位件24复位，从而使得自复位调节机构复位至图6所示状态。
作为本发明的一较佳实施方式，如图5和图6所示，限位件24于位于最低位的卡台241处设有一凸缘242，该凸缘242位于限位件24上对应调节件22的一侧向外凸伸，结合图19所示，在图19所示的限位件24的状态下，凸缘242的顶端面凸伸出卡台241外端面，结合图20和图21所示，在限位件24处于极限位置时，调节件22在复位的过程中通过抵靠于凸缘242而对限位件24施加复位的作用力，从而完成调节件22和限位件24的复位。凸缘242的设置位置，用于阻挡调节件22的回落，从而通 过凸缘242的限位使得调节件22能够卡入到最低位的卡台241上。
作为本发明的另一较佳实施方式，如图1至图4所示，调节件22通过第一转轴31可转动地安装于安装座21上，第一转轴31穿设调节件22和安装座21，从而使得该调节件22可通过第一转轴31实现转动调节；结合图6所示，限位件24靠近该第一转轴31的一侧形成有抵靠面243，结合图18所示，转动限位件24至抵靠面243抵靠于第一转轴31时，而使得限位件24处于极限位置。
限位件24通过第二转轴33可转动地安装于安装座21上，该第二转轴33穿设限位件24和安装座21，从而使得该限位件24可通过第二转轴33实现转动调节。在安装时，限位件24安装于靠近安装座21的后侧212处，调节件22安装于安装座21的中部处，使得调节件22位于限位件24的前侧，这样限位件24在转动时，通过第一转轴31起到限位作用，当限位件24转动到抵靠第一转轴31时，由于第一转轴31的限制，使得该限位件24处于极限位置。
作为本发明的又一较佳实施方式，如图2至图4所示，第一复位件23为扭簧，该扭簧具有第一安装端231和第二安装端232，第一安装端231固定于调节件22上，第二安装端232固定于安装座21上。从而在转动调节件22时，扭簧产生了与调节件22转动方向相反的弹力。较佳地，在调节件22的侧部设有安装孔223，扭簧的第一安装端231插入到安装孔223内并固定，在安装座21的前侧211处设置有卡口216，扭簧的第二安装端232卡入该卡口216内并固定。
作为本发明的再一较佳实施方式，如图2和图5所示，第二复位件25为异形扭簧，包括第一连接段251、与第一连接段251连接的弧形段252以及连接于弧形段252的第二连接段253，该第一连接段251和第二连接段253位于弧形段252的两侧且平行设置，该弧形段252呈圆弧状，在安装该异形扭簧时，将第一连接段251固定于限位件24上，第二连接段253固定于安装座21上。较佳地，结合图7所示，在限位件24上开设有通孔246，将第一连接段251插入该通孔246内并固定；在安装座21的后侧212处设有竖板215，该竖板215上也开设有通孔，将第二连接段253插入该竖板215的通孔内并固定，固定好异形扭簧的第一连接段251和第二连接段253后，使得弧形段252贴设在限位件24的表面。
具体地，异形扭簧的工作原理为：如图7所示，在初始状态时，即调 节件22卡入到最低位的卡台241上，第一连接段251和第二连接段253之间相距较远，此时异形扭簧处于自然状态；如图10所示，在调节件22转动而带动限位件24转动时，限位件24绕着第二转轴33转动，转动方向为图10中的逆时针方向，第一连接段251向着第二连接段253靠近，弧形段252变形产生恢复原状的弹力，在调节件22旋转到第一档位的卡台241处时，在弧形段252的弹力作用下使得限位件24旋转恢复原位，从而第一档位的卡台241和调节件22相卡合。结合图12至15所示，在调节件22位于最高位的卡台241上并继续逆时针旋转时，使得限位件24也进一步旋转，结合图19所示，第一连接段251进一步靠近第二连接段253，该第一连接段251和第二连接段253处于近似相贴时，弧形段252被撑起，形成圆形状，该弧形段252发生形变至其极限位置而产生了支撑住限位件24的作用力，也即弧形段252产生了与限位件24逆时针旋转方向相同的作用力，使得限位件24的抵靠面243抵靠于第一转轴31上，从而多个卡台241不会对调节件22产生限位，此时在调节件22接触施加的转动力后，会在扭簧的作用下顺时针旋转，当调节件22的底部触碰到限位件24的凸缘242时，对限位件24时间顺时针旋转的作用力，使得限位件24顺时针旋转，第一连接段251向远离第二连接段253的方向移动，从而弧形段252恢复形变，进而产生了对限位件24施加顺时针方向的作用力，使得限位件24复位，从而调节件22和限位件24恢复至图6所示状态。
作为本发明的再又一较佳实施方式，如图6、图16和图17所示，为防止调节件22旋转过大而从限位件24的一侧脱出，本发明的限位件24上开设有异形口244，在调节件22上设有穿过该异形口244的定位凸条221，如图12所示，在调节件22位于最高位的卡台241上时，该定位凸条221与异形口244的内壁相贴合从而限位调节件22的转动，即限位调节件22与限位件24间的相对转动。结合图13所示，在调节件22继续逆时针转动时，该定位凸条221与异形口244的内壁相配合而带动限位件24一起转动，通过设置定位凸条221和异形口244，使得调节件22和限位件24能够彼此不脱离。
进一步地，如图2所示，安装座21包括有底板213，结合图6所示，限位件24上靠近底板213的一侧设有与底板213相贴的贴合面245，在初始状态时，即调节件22卡入在最低位的卡台241上，贴合面245与安 装座21的底板213相贴合，从而使得自复位调节机构20具有高的稳定性。结合图8所示，在调节件22调节档位时，调节件22抵靠限位件24使得限位件24逆时针转动，贴合面245远离底板213，结合图9和图10所示，在调节件22的底部从最低位的卡台241和第一档位的卡台241的连接侧部的顶端移动至第一档位的卡台241之上时，结合图11所示，第二复位件24令限位件24复位，贴合面245贴合于底板213上。从而完成了一次档位调节。
本发明的安装座21在底板213上设置有一对翼板214，通过一对翼板214来安装调节件22和限位件24，利用相对设置的一对翼板214，来提高调节件22和限位件24安装的结构稳定性。较佳地，该安装座21呈U型结构，当然本发明的安装座21还可以为其他形状，比如方框型。
作为本发明的再又一较佳实施方式，如图2所示，调节件22的底部形成有供卡设于对应的卡台241上的卡接面222，结合图6所示，调节件22的卡接面222卡设于限位件24的卡台241上，通过卡台241承托该卡接面222来限位调节件22的位置。卡接面222设置于调节件22的底部，较佳地，调节件22包括底部形成卡接面222的调节板，在调节板的两侧连接有供连接的连接翼板，连接翼板的底部和顶部均凸伸出调节板的底部和顶部形成连接端部，第一转轴31穿过底部的连接端部和安装座21实现调节件22可转动地安装在安装座21上。在调节件22顶部的连接端部设有连接轴32，在连接轴32的两端部均连接有一耳板26，结合图1所示，通过连接轴32将调节件22和两个耳板26连接，两个耳板26设于调节件22顶部的两侧，通过耳板26将本发明自复位调节机构20与头枕连接。本发明自复位调节机构20的安装座21用于将头枕安装于汽车座椅上。
如图2和图3所示，该自复位调节机构20还包括置于两个耳板26之间并与调节件22相对设置的传动件27，该传动件27的顶部与两个耳板26固定连接，较佳地，通过铆钉35紧固连接耳板26和传动件27的顶部，传动件27的底部可转动地安装于安装座21，通过传动件27带动调节件22进行转动。该传动件27作为主动臂，将对头枕的作用力传递给调节件22。较佳地，该传动件27的底部通过第三转轴34可转动地安装在安装座21上。
以上结合附图实施例对本发明进行了详细说明，本领域中普通技术人员可根据上述说明对本发明做出种种变化例。因而，实施例中的某些细节 不应构成对本发明的限定，本发明将以所附权利要求书界定的范围作为本发明的保护范围。

Claims (11)

  1. 一种自复位调节机构，其特征在于，包括：
    安装座；
    可转动地安装于所述安装座的调节件；
    安装于所述调节件和所述安装座之间的第一复位件，所述第一复位件在所述调节件转动时产生与所述调节件转动方向相反的作用力以供复位所述调节件；
    可转动地安装于所述安装座的限位件，所述限位件上对应所述调节件的一侧设有位于不同高度、且供限位所述调节件的多个卡台，通过所述调节件卡设于所述限位件对应的卡台上，实现所述调节件的位置调节，且在转动所述调节件时可通过卡台带动所述限位件一起转动；以及
    安装于所述限位件和所述安装座之间的第二复位件，所述第二复位件在所述限位件转动时产生与所述限位件转动方向相反的作用力以供复位所述限位件，在所述限位件转动至极限位置时，所述第二复位件发生形变而产生与所述限位件转动方向相同的作用力而令所述限位件处于极限位置，此时所述调节件在所述第一复位件的作用力下复位，从而对所述限位件施加复位的作用力，使得所述第二复位件复原且所述限位件复位。
  2. 如权利要求1所述的自复位调节机构，其特征在于，所述限位件于位于最低位的卡台处设有一凸缘；
    所述限位件处于极限位置时，所述调节件在复位的过程中通过抵靠于所述凸缘而对所述限位件施加复位的作用力，从而完成所述调节件和所述限位件的复位。
  3. 如权利要求2所述的自复位调节机构，其特征在于，所述调节件通过第一转轴可转动地安装于所述安装座；
    所述限位件靠近所述第一转轴的一侧形成有一抵靠面，转动所述限位件至所述抵靠面抵靠于所述第一转轴时，而使得所述限位件处于极限位置。
  4. 如权利要求1所述的自复位调节机构，其特征在于，所述第一复位件为扭簧，所述扭簧的一端固定于所述调节件上，另一端固定于所述安装座上。
  5. 如权利要求1所述的自复位调节机构，其特征在于，所述第二复 位件为异形扭簧，包括第一连接段、与所述第一连接段连接的弧形段以及与连接于所述弧形段的第二连接段，所述第一连接段和所述第二连接段位于所述弧形段的两侧且平行设置，所述弧形段呈圆弧状；
    所述第一连接段固定于所述限位件上，所述第二连接段固定于所述安装座上。
  6. 如权利要求1所述的自复位调节机构，其特征在于，所述限位件上开设有异形口；
    所述调节件上设有穿过所述异形口的定位凸条；
    当所述调节件卡设于所述限位件上位于最高位的卡台上时，所述定位凸条与所述异形口的内壁相贴合从而限位所述调节件的转动。
  7. 如权利要求1所述的自复位调节机构，其特征在于，所述安装座包括有底板；所述限位件上靠近底板的一侧设有与所述底板相贴的贴合面。
  8. 如权利要求1所述的自复位调节机构，其特征在于，所述调节件的底部形成有供卡设于对应的卡台上的卡接面。
  9. 如权利要求1所述的自复位调节机构，其特征在于，所述调节件上远离所述安装座的一端设有连接轴，所述连接轴的两端部均连接有一耳板。
  10. 如权利要求9所述的自复位调节机构，其特征在于，还包括置于两个耳板之间并与所述调节件相对设置的传动件，所述传动件的顶部与两个耳板固定连接，底部可转动地安装于所述安装座，通过所述传动件带动所述调节件进行转动。
  11. 如权利要求1所述的自复位调节机构，其特征在于，所述调节件通过第一转轴可转动地安装于所述安装座；
    所述限位件靠近所述第一转轴的一侧形成有一抵靠面，转动所述限位件至所述抵靠面抵靠于所述第一转轴时，而使得所述限位件处于极限位置。
PCT/CN2018/098465 2018-03-19 2018-08-03 自复位调节机构 Ceased WO2019179000A1 (zh)

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