CN101784416A - Seat back structure of vehicle seats and retaining structure for a crank member - Google Patents

Seat back structure of vehicle seats and retaining structure for a crank member Download PDF

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Publication number
CN101784416A
CN101784416A CN200880101184A CN200880101184A CN101784416A CN 101784416 A CN101784416 A CN 101784416A CN 200880101184 A CN200880101184 A CN 200880101184A CN 200880101184 A CN200880101184 A CN 200880101184A CN 101784416 A CN101784416 A CN 101784416A
Authority
CN
China
Prior art keywords
pressure receiving
receiving member
load
passenger
headrest
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.)
Pending
Application number
CN200880101184A
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Chinese (zh)
Inventor
横田真明
小池敦司
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.)
Lear Corp
Original Assignee
Lear Corp
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
Priority claimed from JP2007211334A external-priority patent/JP4667431B2/en
Application filed by Lear Corp filed Critical Lear Corp
Publication of CN101784416A publication Critical patent/CN101784416A/en
Pending legal-status Critical Current

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    • 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
    • B60N2/888—Head-rests with arrangements for protecting against abnormal g-forces, e.g. by displacement of the head-rest
    • 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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
    • B60N2/42781—Seats or parts thereof displaced during a crash characterised by the triggering system mechanical triggering
    • 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
    • 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
    • B60N2/853—Tiltable characterised by their adjusting mechanisms, e.g. electric motors

Abstract

A pressure receiving member for receiving loads from a pelvic region and back portions of a passenger, is formed into an approximate U character shape and is connected to a crank member to hang across left and right side members inside a seat back. During a rear-end collision, the pressure receiving member shifts to and circularly moves the crank member in the backward and upper directions to circularly move circularly moving links against the energizing force provided by an extension spring. An arm of a lumbar support forms an approximate-L-character- shaped part. An insertion hole starts with a hole of a larger diameter and extends to a hole of a smaller diameter so that the arm can be inserted into the insertion hole in a horizontal direction. A bushing with a flange is mounted around the arm, and fit together with larger-diameter hole of the insertion hole to support the arm.

Description

The chair backrest structure of vehicle seat and the maintenance structure that is used for crank member
The cross reference of related application
The application requires the foreign preference of the JP 2007-211334 of the JP 2007-198558 that submitted on July 31st, 2007, submission on August 14th, 2007 according to 35U.S.C § 119 (a)-(d), and require the U.S. Provisional Application sequence number 61/041 of submission on April 2nd, 2008,715 rights and interests, these patents are incorporated into this by reference in full.
Background
1. technical field
Embodiments of the present invention relate to the chair backrest structure of vehicle seat, it is arranged on the predetermined pressure receiving member reception of back of seat in-to-in by the transfer by the inertia on the backward directions of passenger's experience that rear end collision produces by making, and changes the position of headrest on upper direction and front direction by compulsion.
Embodiments of the present invention also relate to the maintenance structure that is used for crank member, and it is can the circular mode that moves remaining on crank member between the left load-carrying element and right load-carrying element with patchhole.
2. background technology
The load (impact load) that produces by the transfer of the inertia on the backward directions of passenger's experience when the chair backrest structure of vehicle seat is arranged on the predetermined pressure receiving member of back of seat in-to-in and is received in rear end collision and takes place by making, changing headrest by compulsion exists, for example, position on upper direction and the front direction, wherein upper direction and front direction are the directions that passenger's head moves, the chair backrest structure of this vehicle seat for example has been disclosed in, among the Official Journal No.:Hei11 (1999)-034708 and other documents of Kokai.
Such headrest, it is so-called emergency start headrest (emergency-activated headrest), the energy supply power (energizingforce) of the energy supply device of compositions such as the common free extension coil spring of origin provides energy, and be maintained at its common Support Position, promptly be maintained at its underpart initial position; And this energy supply power is configured to the input judgment criteria by the impact load of rear end collision generation usually.Except above content, when the load (impact load) that surpasses the energy supply power of setting was transfused to the pressure receiving member, the pressure receiving member moved up rearward and resists energy supply power; By above-mentioned action, headrest is built into to be transferred to top from its underpart initial position and changes the position, its be upper direction and forwards to.
According to aforesaid this structure, when rear end collision took place, headrest moved to the position of more close passenger's head, and the space between headrest and passenger's the head has narrowed down; Therefore, head back bevelled degree is lowered, and wherein this inclination produces when rear end collision takes place.Therefore, the infringement that causes by the unexpected inclination of head in the time of can being reduced in rear end collision and taking place, promptly so-called whip sample injury (whip-lash) to neck.
In the Official Journal No.:Hei11 (1999)-034708 of above-mentioned Kokai in the disclosed structure, be used to receive pressure receiving member from the impact load of the transfer of the inertia on the backward directions and be set at position corresponding to passenger's back portion.In general, under passenger's normal driving posture, passenger's pelvis area most of with the contacting of back of seat with regard to seating face, and passenger's back portion tends to and the separating with regard to seating face of back of seat.Because above-mentioned tendency, when the transfer of the inertia on the backward directions was applied in by rear end collision, passenger's back portion at least at first passed through spacing distance, could arrive the pressure receiving member then, and pushed this member.In other words, when rear end collision took place, because this spacing distance, passenger's back portion was with pseudo-mode and pressure receiving member collision by big energy supply power energy supply and maintenance; Therefore, possible is: when headrest starts, passenger's back portion will be forced to receive the impact load of excessive degree, and can not be rejected.
Compare with aforesaid structure, the Official Journal No.:2000-325179 of Kokai discloses a kind of like this structure, and wherein, headrest presses the pressure receiving member by the pelvis area that makes the passenger and changed the position by emergency start to its top.In general, under passenger's normal driving posture, passenger's pelvis area major part contacts with regard to seating face with back of seat; Therefore, passenger's pelvis area does not just arrive pressure receiving member and press pressure receiving member through under the situation of spacing distance.Therefore, if back of seat makes up in the mode of passenger's pelvis area press pressure receiving member, then when the pressure receiving member is pressed, the impact load that is applied to the passenger will be lowered.
For example, disclosed among the Official Journal No.:Hei10 (1998)-138812 as Kokai, the left arm and the right arm of conventional crank member are formed rectilinear form, promptly do not apply the horizontal shape of processing.In addition, the arm of horizontal shape is inserted into inserting in the hole on the load-carrying element of the left side frame that is arranged on similar backrest frame and right side frame, and lining nut (bushing nut) and E ring (E ring) is installed on the arm that stretches out from patchhole, makes crank member can the circular mode that moves remaining between the load-carrying element.
General introduction
1. the problem to be solved in the present invention
Energy supply power is produced by energy supply device, and is applied to headrest and pressure receiving member, and in general, in the whole mobile range of headrest, energy supply power is applied to headrest and pressure receiving member constantly.Therefore, keep changing the position at an upper portion thereof with stable manner, be necessary the pressure receiving member applied continuously greater than the amount of the pressure of energy supply power and resist this energy supply power in order to rest the head on.
Yet the heavy degree that leans against on the back of seat of passenger's upper torso is tended to: the back portion about the passenger is bigger, but not bigger about passenger's pelvis area.When passenger's back portion sank to back of seat largely, and center of gravity and other factors of this moment that input load that be applied to pressure receiving member tend to owing to posture along with passenger change generation by passenger's pelvis area reduced.Therefore, in structure, headrest is remained on stability that top changes the position can rely on the degree of the pressure that reduces and reduce from the load press pressure receiving member of passenger's pelvis area.
In other words, in the structure of passenger's back portion press pressure receiving member, when initial start, passenger's back portion may be forced to receive the impact load of excessive degree, and passenger's pelvis area press pressure receiving member discontinuously.
Embodiments of the present invention are used to provide a kind of chair backrest structure of vehicle seat, wherein, when initial start, passenger's back portion is not forced to receive the impact load of excessive degree, and wherein, passenger's pelvis area press pressure receiving member continuously.
Yet, when using the lining nut, arm edge application step forming process (astep-forming process) to crank member becomes necessary, and when using the E ring, the arm edge application circular trough forming process (circular-groove-forming process) of crank member is become necessary.This step forming process and circular trough forming process are special technology, and they are different from the bending process that is used for forming crank member, and so cost height.
In addition, need special instrument to come mounting bush nut and E ring; Therefore, operability reduces inevitably.
In addition, being inserted into inserting in the hole of load-carrying element and crank member at the arm of the horizontal shape of crank member is maintained in wherein the structure, when having served as the loading gage lotus and being applied to crank member, this load acts on lining nut and the E ring in a concentrated manner, and wherein this lining nut and E ring is used to prevent that this arm from coming off.As a result, when the excessive load that can cause distortion was applied in, lining nut and E ring can not be resisted this load, and they break.Therefore, the risk that exists arm to come off from inserting in the hole of load-carrying element.
The purpose of at least one embodiment of the present invention provides a kind of maintenance structure that is used for crank member that has reduced cost, and wherein, although it is simple in structure, arm can not come off from inserting in the hole.
2. be used to the means of dealing with problems
According at least one embodiment of the present invention, the characteristic of this at least one embodiment of the present invention is as follows:
The chair backrest structure of vehicle seat, it is arranged on the predetermined pressure receiving member reception of back of seat in-to-in by the transfer by the inertia on the backward directions of passenger's experience that rear end collision produces by making, and changes the position of headrest on upper direction and front direction by compulsion;
Wherein, circular mobile link in an a pair of left side and right circular mobile link (a pair of left and rightcircularly moving links), it is installed in respectively on the left-side member and right side member of backrest frame, so that can wave;
Pivot shaft, it laterally is arranged to be suspended on athwart this predetermined edge to circular mobile link in a left side and right circular mobile link, makes when circular mobile link is mobile circularly, along mobile the become possibility of circular arc on upper direction and bottom direction;
Column retainer support (cylinder-like holder bracket), it is inserted in the headrest pillar and by the shore supports of resting the head on, this headrest pillar is to be provided with pivot shaft all-in-one-piece mode, and support is designed to pass the bracket guides on the upper component that is fixed on backrest frame, so that be free to slide contiguously with bracket guides, and so that freely tilt;
Therefore, resisting above-mentioned energy supply power and when mobile circularly, can guarantee that headrest is in top and changes the position when circular mobile link, is that fulcrum turns forward with the bracket guides simultaneously;
Above-mentioned pressure receiving member is fixed on the pivot shaft via its upper end, so that move in response to pivot shaft, and above-mentioned pressure receiving member is designed to the upwardly extending pressure receiving member in bottom side, so that receive the load from passenger's pelvis area and back portion;
And above-mentioned pressure receiving member is supported by crank member, the left that this crank member is configured to be suspended on athwart back of seat to right on, and be supported for and be rotated by means of axle, and be arranged so that laterally that circle on backward directions and upper direction moves and become possibility.
According at least one embodiment of the present invention, the characteristic of this at least one embodiment of the present invention is as follows:
The chair backrest structure of vehicle seat, it is arranged on the predetermined pressure receiving member reception of back of seat in-to-in by the transfer by the inertia on the backward directions of passenger's experience that rear end collision produces by making, and changes the position of headrest on upper direction and front direction by compulsion;
Wherein, circular mobile link in an a pair of left side and right circular mobile link, it is installed in respectively on the left-side member and right side member of backrest frame, so that can wave;
Pivot shaft, it laterally is arranged to be suspended on athwart this predetermined edge to circular mobile link in a left side and right circular mobile link, makes when circular mobile link is mobile circularly, along mobile the become possibility of circular arc on upper direction and bottom direction;
Column retainer support, it is inserted in the headrest pillar and by the shore supports of resting the head on, this headrest pillar is to be provided with pivot shaft all-in-one-piece mode, and support is designed to pass the bracket guides on the upper component that is fixed on backrest frame, so that be free to slide contiguously with bracket guides, and so that freely tilt;
Therefore, resisting above-mentioned energy supply power and when mobile circularly, can guarantee that headrest is in top and changes the position when circular mobile link, is that fulcrum turns forward with the bracket guides simultaneously;
Above-mentioned pressure receiving member is fixed on the pivot shaft via its upper end, so that move in response to pivot shaft, and above-mentioned pressure receiving member is designed to the upwardly extending pressure receiving member in bottom side, so that receive the load from passenger's pelvis area and back portion;
And above-mentioned pressure receiving member is supported by crank member, the left that this crank member is configured to be suspended on athwart back of seat to right on, and be supported for and be rotated by means of axle, and being arranged so that laterally that circle on backward directions and upper direction moves becomes possibility, and the circle of crank member moves through support link and is passed to circular mobile link, and the circle that becomes circular mobile link opposing energy supply power moves.
According at least one embodiment of the present invention, the characteristic of this at least one embodiment of the present invention is as follows:
The chair backrest structure of vehicle seat,
Wherein, above-mentioned pressure receiving member is formed the shape of seeing approximate letter U from the front, and have a pair of vertical axes and horizontal shaft, this makes the pressure receiving member can receive the load from passenger's back portion to vertical axes, and this horizontal shaft makes the pressure receiving member can receive the load from passenger's pelvis area.
According at least one embodiment of the present invention, the characteristic of this at least one embodiment of the present invention is as follows:
The chair backrest structure of vehicle seat,
Wherein, bracket guides is equipped with antetheca and rear wall, this antetheca and rear wall have first bearing surface and second bearing surface separately, angle when the angle of inclination of this first bearing surface is in the bottom initial position of headrest corresponding to the retainer support, and the angle of the top that the angle of inclination of this second bearing surface is in headrest corresponding to the retainer support when changing the position
And first bearing surface of antetheca and rear wall alternately forms the parallel plane that the retainer support can be clipped in the middle with second bearing surface at the varying level place.
According at least one embodiment of the present invention, the left arm edge of crank member and right arm edge are bent to the shape of approximate alphabetical L respectively;
The patchhole of keyhole shape, it starts from than large diameter hole, and extend to slotted hole continuously than minor diameter, this patchhole is formed on in left load-carrying element and the right load-carrying element each, and the length of this patchhole makes the L shaped part of approximate letter at arm edge of crank member to be inserted on the direction of level to insert in the hole;
And lining, its be designed to be engaged in patchhole than in the large diameter hole, and be configured to arm around crank member, and lining be fitted to patchhole than in the large diameter hole; Therefore, crank member is maintained between left load-carrying element and the right load-carrying element.
According at least one embodiment of the present invention, lining is formed by hard rubber or plastics, and the mode with one comprises its main body and flange portion, and this main body is designed to and being combined together than large diameter hole of patchhole, and the diameter of this flange portion is greater than the diameter than large diameter hole;
Fastener, its with than the periphery of large diameter hole, and load-carrying element is clipped in the space between this fastener and the flange portion, and this fastener is formed on the outer surface of main body of lining.
According at least one embodiment of the present invention, fastener is formed on a plurality of positions that separate on the outer surface of main body of lining.
According at least one embodiment of the present invention, the slotted hole of patchhole extends on the identical direction of the direction that is not applied in load, and patchhole is formed on not the circular moving range position overlapped with the L shaped part of the approximate letter at arm edge.
3. effect of the present invention
According at least one embodiment of the present invention, when rear end collision takes place, because the load that applies by passenger's pelvis area, pressure receiving member removable crank member circularly on backward directions and upper direction, and move to backward directions and upper direction simultaneously, to move circular mobile link circularly; Therefore, although when initial start, be applied to the pressure receiving member from the load of passenger's pelvis area, after the pelvis area applied load by the passenger, the loading that is applied by passenger's back portion is on the pressure receiving member.Therefore, under situation about having received from the load of passenger's pelvis area and back portion, the pressure receiving member moves up in backward directions and top square, changes the position so that circular mobile link moves to the top of headrest circularly; And headrest is moved to its top smoothly and is changed the position.Then, by making the load of pressure receiving member reception, make headrest can continue to keep changing at an upper portion thereof the position from passenger's pelvis area and back portion.
Except above content because when initial start, the pressure receiving member be since be applied to its from the load of passenger's pelvis area and mobile, therefore, in initial start, do not have excessive load to be applied to passenger's back portion.
In other words, structure according at least one embodiment of the present invention, can realize easily that initial start performance (initial activation performance) and startup keep performance (activationmaintenance performance), wherein, the initial start performance is not applied to the passenger by compulsion with impact load, keeps performance and does not rely on load from passenger's pelvis area and start.
In addition, rear end collision is taking place, when the pressure receiving member has received from the load of passenger's pelvis area and back portion, the pressure receiving member can rearward move up, this can realize by the circular crank member that moves by the pressure receiving member is connected to simply, and this helps simplified construction.In addition, required member only is these two kinds of members, that is, and and pressure receiving member and crank member, and these members can assemble by the circular crank member that moves by the pressure receiving member is connected to simply; This assembling does not need high-caliber precision, and it can carry out apace and easily.In addition, the pressure receiving member can rearward move up along with moving freely of it; Therefore, it can move apace, and it can have high-caliber operability.
According at least one embodiment of the present invention, when rear end collision takes place, because the load that applies by passenger's pelvis area, pressure receiving member removable crank member circularly on backward directions and upper direction, and move to backward directions and upper direction simultaneously, to move circular mobile link circularly; Therefore, although when initial start, be applied to the pressure receiving member from the load of passenger's pelvis area, after the pelvis area applied load by the passenger, the loading that is applied by passenger's back portion is on the pressure receiving member.Therefore, under situation about having received from the load of passenger's pelvis area and back portion, the pressure receiving member moves up in backward directions and top square, changes the position so that circular mobile link moves to the top of headrest circularly; And headrest is moved to its top smoothly and is changed the position.Then, by making the load of pressure receiving member reception, make headrest can continue to keep changing at an upper portion thereof the position from passenger's pelvis area and back portion.
Except above content because when initial start, the pressure receiving member be since be applied to its from the load of passenger's pelvis area and mobile, therefore, in initial start, do not have excessive load to be applied to passenger's back portion.
Be applied to circular mobile link because move the press load of generation by the circle of crank member, and the circle of crank member moves and is effectively utilized, so, circular mobile link can rotate quicker and more accurately, and the initial start of circular mobile link and circular continuation of moving can both be guaranteed, and can not make impact load be applied to the passenger by compulsion; Therefore, when applying press load, being applied to passenger's the pelvis area and the impact load of back portion can be lowered.
Also according to the structure of at least one embodiment of the present invention, can realize easily that initial start performance and startup keep performance, wherein, the initial start performance is not applied to the passenger by compulsion with impact load, keeps performance and does not rely on load from passenger's pelvis area and start.
In addition, rear end collision is taking place, when the pressure receiving member has received from the load of passenger's pelvis area and back portion, the pressure receiving member can rearward move up, this can realize by the circular crank member that moves by the pressure receiving member is connected to simply, and this helps simplified construction.In addition, required member only is these two kinds of members, that is, and and pressure receiving member and crank member, and these members can assemble by the circular crank member that moves by the pressure receiving member is connected to simply; This assembling does not need high-caliber precision, and it can carry out apace and easily.In addition, the pressure receiving member can rearward move up along with moving freely of it; Therefore, it can move apace, and it can have high-caliber operability.
According at least one embodiment of the present invention, because above-mentioned pressure receiving member is formed the shape of seeing approximate letter U from the front, so it can receive the load from the load of passenger's back portion and passenger's pelvis area effectively.
According at least one embodiment of the present invention, because bottom initial position and top at headrest change the position, the retainer support can be clipped in the middle contiguously with the antetheca of bracket guides and the surface of rear wall, so, can prevent that headrest is unstable in the failure-free mode.
In at least one embodiment of the present invention, what provide only is the shape that the arm curved edge of crank member is become approximate alphabetical L, and the special technology of unnecessary application such as step forming process or circular trough forming process.Therefore, but cost-cutting.
In addition, because what will provide only is the shape that the arm curved edge of crank member is become approximate alphabetical L, so simple structure.Even when having served as the loading gage lotus and being applied to crank member, the L shaped part of the approximate letter that inserts in the hole that is inserted into load-carrying element at arm edge also can be locked in inserting in the hole of load-carrying element together, and therefore can resist load.Even when lining damaged, above-mentioned structure can prevent that also arm from coming off from inserting in the hole of load-carrying element therefore.
In addition, around the lining of the arm setting of crank member be fitted to patchhole than in the large diameter hole, and this has prevented to be arranged in the part L shaped than the approximate letter of large diameter hole and has moved on the direction of slotted hole.Therefore, under the normal circumstances that does not have excessive load to be applied in, arm can not come off from inserting in the hole.
In at least one embodiment of the present invention, load-carrying element can be sandwiched in the flange portion and the space between the fastener of lining, and lining is formed by hard rubber or plastics; Therefore, can not send the sound or noise ground and support crank member, the level and smooth circle of crank member moves and has also obtained guaranteeing simultaneously.
In at least one embodiment of the present invention, fastener is taked the shape of segmentation; Therefore, the main body of lining can easily be out of shape, and therefore, lining can be coupled to smoothly patchhole than in the large diameter hole.
In at least one embodiment of the present invention, the L shaped part of the approximate letter at arm edge can not slide in the slotted hole part of patchhole, can not come into line with slotted hole yet.Therefore, arm can be remained on preposition, and can prevent that arm from coming off from inserting in the hole.
The accompanying drawing summary
Fig. 1 is the vertical cross sectional drawing of chair backrest structure of the vehicle seat that is used for a worked example of the present invention (worked example 1) that is in the bottom initial position of headrest.
Fig. 2 is the transparent view of part excision of the chair backrest structure that is used for vehicle seat that is in the bottom initial position of headrest.
Fig. 3 is the vertical cross sectional drawing that is in the top change chair backrest structure that is used for vehicle seat partly of headrest.
Fig. 4 (A) (B) constitutes the transparent view of bracket guides and vertical cross sectional drawing respectively.
Fig. 5 is the vertical amplification cross sectional drawing of the part excision of the top that the is in headrest chair backrest structure that is used for vehicle seat that changes the position.
Fig. 6 (A) is respectively the vertical cross sectional drawing that is in the chair backrest structure of the bottom initial position of headrest and the vehicle seat that is used for another worked example of the present invention (worked example 2) that top changes the position (B).
Fig. 7 is the transparent view of part excision of the chair backrest structure that is used for vehicle seat that is in the bottom initial position of headrest.
Fig. 8 (A) to (C) is the one group of skeleton process figure (skeletalprocess figure) that utilizes Lordosis support (lumbar support) as a worked example (worked example 3) of crank member about of the present invention, and it shows crank member and how to keep.
Fig. 9 is the skeleton diagram that utilizes Lordosis support as the maintenance structure (retaining structure) of a worked example of crank member about of the present invention.
Figure 10 is the partial view that keeps structure, and it shows the relation between the L shaped part of patchhole and approximate letter.
Figure 11 (A) is respectively the front view and the transparent view of lining (B).
Figure 12 is the front view that illustrates the chair backrest structure that has waist attachment that is used for vehicle seat.
Figure 13 is the cross sectional drawing of the chair backrest structure of Figure 12.
Figure 14 is the part of amplification of section drawing of the chair backrest structure of Figure 13.
Figure 15 is the section drawing that dissects gained along the A-A line among Figure 12.
Figure 16 is the rear view of the chair backrest structure of Figure 12.
Figure 17 is the part of amplification of the rear view of Figure 16.
Figure 18 is the front view of a worked example (worked example 4) that is used for the chair backrest structure that has waist attachment of vehicle seat.
Figure 19 is the front view of a worked example (worked example 5) that is used for the chair backrest structure that has waist attachment of vehicle seat.
The detailed description of embodiments of the present invention
As required, disclosed herein is detailed embodiment of the present invention; However, it should be understood that disclosed embodiment only is an example of the present invention, and it can be embodied as different and optional form.Accompanying drawing is not to draw in proportion; Some features may be exaggerated or be dwindled, to demonstrate the details of specific features.Therefore, concrete 26S Proteasome Structure and Function details disclosed herein should not be interpreted into restriction, but uses representative basis of the present invention as just representative basis and/or teaching those skilled in the art of claim many-sidedly.
Embodiments of the present invention make up by following mode: the pressure receiving member is designed to receive the pressure receiving member from the vertical setting of the load of passenger's pelvis area and back portion; When rear end collision takes place, because the load that applies by passenger's pelvis area, pressure receiving member removable crank member circularly on backward directions and upper direction, and move up in backward directions and top square simultaneously, to move circular mobile link circularly; Therefore, after the pelvis area applied load by the passenger, the load that is applied by passenger's back portion also is applied on the pressure receiving member.
In at least one embodiment of the present invention, the arm edge of crank member is bent to the shape of approximate alphabetical L, and is fitted to around the lining of arm setting and inserts in the hole; Therefore, crank member remains between the load-carrying element in the mode that circle moves.
Worked example 1
Fig. 1 and Fig. 2 are in the vertical cross sectional drawing of chair backrest structure of a worked example of the present invention of bottom initial position of headrest and the transparent view of part excision, and the vertical cross sectional drawing of Fig. 3 to be the top that is in headrest change above-mentioned chair backrest structure of position.
As shown in figures 1 and 3, back of seat 10 is constructed such that it is equipped with so-called emergency start headrest 12.When rear end collision is taking place, during load that headrest 12 transfers that received the inertia of passenger on backward directions cause, headrest 12 is converted to top shown in Figure 3 from bottom initial position shown in Figure 1 and changes the position.
In addition, Fig. 3 has been shown in broken lines the bottom initial position, and shows top with solid line and change the position, and rests the head on and 12 turn forward, and changes its position by circular motion as shown by arrows.
As being clearly shown that among Fig. 1 and Fig. 3 and Fig. 2, circular mobile link in an a pair of left side that approximate letter is L shaped and right circular mobile link 14 are installed into respectively and make it possible to exist by waving supporting pin (swing-supporting pin) 16, for example, wave on the connecting rod rack 19 on the left-side member of backrest frame 18 and the right side member 18a.In addition, pivot shaft 20 is configured to be suspended on athwart on the edge corresponding to circular mobile link in a left side and right circular mobile link 14, and is supported to and can be rotated by axle; Therefore, pivot shaft 20 is by horizontally set, so that along with circular mobile link moves circularly and carries out moving circularly on direction and the bottom direction at an upper portion thereof.
In addition, in Fig. 2, right circular mobile link 14 is ensconced under the member 18a of right side in the drawings.
Column retainer support 24 is inserted in the pillar 22 of headrest 12, and is supported by the pillar 22 of headrest 12, and its lower edge is fixed on the pivot shaft 20; Simultaneously, this support is designed to pass the bracket guides 26 on the upper component 18b that is arranged on backrest frame 18, so that be free to slide contiguously with bracket guides, and so that freely tilts.Therefore, when circular mobile link 14 and pivot shaft 20 were mobile circularly, retainer support 24 can turn forward, and bracket guides 26 plays the effect of fulcrum; When the retainer support turned forward, headrest 12 was supported for and makes it to transfer to its change position, top from its underpart initial position, turns forward simultaneously.
In this worked example, when seeing the rectangular shape in cross section figure of cylinder from the side, retainer support 24 forms the shape near Hiragana letter KU (similar alphabet letters V becomes its open end towards the right side to lateral deflection), and the pillar 22 of headrest is inserted through the upper limb of retainer support via pillar retainer 28.
In addition, pillar retainer 28 inserts the first half 24a of retainer support 24 in a fixed manner, and on arbitrarily the point and following come supporting strut 22 by lockout mechanism.The structure of pillar retainer is not an essence of the present invention, and is well-known structure; Therefore, omitted its detailed description.
As being clearly shown that ground among Fig. 2, the first half 24a of retainer support 24 inserts bracket guides 26.
Fig. 4 (A) and (B) show the transparent view of bracket guides respectively and vertical cross sectional drawing.
As Fig. 4 (A) with (B), bracket guides 26 is equipped with antetheca 28f and rear wall 28r, and these walls have the first bearing surface 28a and the second bearing surface 28b separately, wherein, the angle of inclination of this first bearing surface 28a is corresponding to the angle of retainer support when headrest is in the bottom initial position, and the angle of inclination of this second bearing surface 28b is in the angle that top changes the position corresponding to the retainer support at headrest.Except foregoing, the first bearing surface 28a of antetheca and rear wall alternately forms parallel plane at various height with the second bearing surface 28b, and this can be clipped in the middle the retainer support.Therefore, owing to be clipped in the middle by antetheca and rear wall, bottom initial position and top that the retainer support is supported on headrest 12 change the position.
Because bracket guides 26 is built into aforesaid wall, shown in Fig. 4 (B), because bottom initial position and top at headrest change the position, retainer support 24 can be pressed from both sides with the antetheca of bracket guides and the surface of rear wall and be contacted, so, bracket guides 26 supports headrest 12, thereby can be with failure-free mode 12 instabilities that prevent to rest the head on.
By groove (the similar elongated a little in the horizontal direction rectangle of shape approximation Japanese katakana KO is set on 26 left side wall and right side wall, and its left side is cut), downward hook (downwardhook) 26a is formed on left side wall and the right side wall, and around circumferential step 26b be formed on below the hook bracket guides around so that towards hook.Because top setting, by the 18b with backrest frame be clipped in downward hook 26a and around circumferential step 26b between, bracket guides 26 is pinned with the upper component of backrest frame in a fixed manner.
As explained above, because pivot shaft 20 is being supported on left circular mobile link and the right circular mobile link 14 in the mode that moves on upper direction and the bottom direction, therefore, when pivot shaft moves on upper direction and bottom direction, and that circular mobile link carries out is circular when mobile, and the position of headrest 12 changes between position and the position, its underpart at an upper portion thereof.In addition, when pivot shaft 20 because the waving that supporting pin 16 plays the effect of fulcrum of circular mobile link and the mode that on upper direction and bottom direction, moves when moving with circular arc, headrest 12 since bracket guides 26 play fulcrum effect and forward and recede (seeing Fig. 1, Fig. 3 and Fig. 4 (B)).
As being clearly shown that ground among Fig. 2, in this worked example, hill holder 19a, and gives prominence on the circular mobile route of circular mobile link 14 from connecting rod rack 19 bendings in the mode of approximate vertical.Setting above having had, owing to the locking in business (1atching effect) that is produced by hill holder 19a, at the bottom initial position of headrest 12, the circle of circular mobile link 14 moves and is under control.
For circular mobile link 14, provide energy supply power by energy supply device 30, when being on the direction of its underpart initial position at headrest 12 to the power of 12 energizes of resting the head on.The energy supply power energize that provides by energy supply device 30 when in other words, headrest 12 is on the direction that is in its underpart initial position.
In this worked example, energy supply device 30 is presented as extension coil spring, and it is configured to be suspended on the circular mobile link 14 and left-side member and right side member 18a of backrest frame.Except above content, the upper limb 30a of extension coil spring is locked in the pinning hole that is arranged in pivot shaft 20 tops of circular mobile link 14, and the lower edge 30a of extension coil spring is locked in the left-side member of backrest frame and the pinning hole that is arranged in pivot shaft 20 belows that right side member 18a goes up setting; Therefore, on the direction of the bottom initial position of resting the head on, energy supply power is applied to circular mobile link 14.
In other words, in Fig. 2, energy supply power is applied to circular mobile link 14 by energy supply device 30 (extension coil spring), and this energy supply power makes circular mobile link 14 move circularly in the clockwise direction around waving supporting pin 16.
Be equipped with the chair backrest structure of such emergency start headrest 12 to be constructed such that: when rear end collision takes place, the load opposing energy supply power that causes owing to the transfer of the inertia on the backward directions (power that provides by the spring of extension coil spring), thus the top that makes circular mobile link 14 move to headrest circularly changes the position.In other words, back of seat 10 is constructed such that: when rear end collision takes place, the load that is caused by the transfer of the inertia of passenger on backward directions is received by predetermined pressure receiving member, and circular mobile link 14 is transmitted and be applied to this load, become the circular displacing force on the direction of change position, the top of headrest, the energy supply power that antagonism is provided by energy supply device 30.
In this worked example, pressure receiving member 34 can receive the load from passenger's pelvis area and back portion, and it is set in the back of seat 18; In this worked example, the pressure receiving member is presented as vertical setting and pressure receiving member that extend downwards in one way, and this mode makes it be fixed on the pivot shaft by its upper limb by means of adhesives etc.Therefore, it can move in response to pivot shaft, and it can receive the load from passenger's pelvis area and back portion.
Pressure receiving member 34 preferably, for example the rod member that is provided with in order to the mode of downward extension forms, or for example form with a kind of like this rod member: this rod member has when it receives load from passenger's pelvis area and back portion can make the pressure receiving member push the rigidity of pivot shaft 20, and the flexibility that can make the bending of pressure receiving member.
As being clearly shown that ground among Fig. 2, pressure receiving member 34 forms approximate letter U shape, as seeing from the front, it has a pair of vertical axes 34a and horizontal shaft 34b, this forms by the curved rod member vertical axes 34a, and have and make the pressure receiving member can receive width, and this horizontal shaft 34b connects this to vertical axes 34a in this lower position to vertical axes 34a from the load of passenger's back portion.Horizontal shaft 34b plays the effect of reception from the load of passenger's pelvis area, and be arranged on a certain position, in this position, when may be received in the rear end collision generation, the load that causes by the transfer of the inertia on backward directions from passenger's pelvis area, for example, be arranged on seat side direction near centre, it is spaced apart with the left-side member and the right side member 18a of backrest frame that this sentences roughly the same distance.
In this worked example, because this width to the lower part 34a2 of vertical axes 34a is designed to narrower than the width of first half 34a1, and horizontal shaft 34b is designed to narrower to the distance between the vertical axes 34a than this, therefore, the load from passenger's pelvis area can be received by the mode of horizontal shaft with safety.In addition, because pressure receiving member 34 forms by crooked rod member, therefore, can easily form the pressure receiving member.
Pressure receiving member 34 and crank member (crank member) 36 are connected at step 34a3 place, and this step 34a3 is positioned at the lower part of 34a, and at this place, this changes the width between the 34a.Pressure receiving member 34 is connected with crank member 36, by step 34a and the crank member 36 with cylindrical component 35 overburden pressure receiving members, allows crank member to carry out circle and moves.
Supported hole 18a1 is respectively formed on the left-side member and right side member 18a of backrest frame.The left hand edge and the right hand edge 36a of the bending by making crank member 36 rotatably are supported in this supported hole, crank member is configured to be suspended on athwart on the left-side member and right side member of backrest frame, and therefore is arranged on backward directions and the upper direction can carry out the circular mode that moves.
In general, under passenger's normal driving posture, passenger's pelvis area most of with the contacting of back of seat with regard to seating face, and passenger's back portion tends to the surface isolation of taking one's seat with back of seat.Because above-mentioned tendency, when the transfer of the inertia on the backward directions is applied in by rear end collision, passenger's pelvis area to the generation of pushing of the horizontal shaft 34b of pressure receiving member early than pushing to the vertical axes 34a of pressure receiving member.
When rear end collision takes place, passenger's pelvis area moves up rearward owing to the transfer of the inertia on the backward directions, and when the horizontal shaft 34b that the pressure that is produced acts on the pressure receiving member subsequently goes up, pressure receiving member 34 rearward moves up seat, and crank member 36 carries out circle and moves.The pressure that is applied to pressure receiving member 34 affacts on the pivot shaft that upper limb was fixed to 20 of pressure receiving member, makes circular mobile link 14 move circularly on anticlockwise direction shown in Figure 1.When the energy supply power that is provided by energy supply device 30 was provided pressure, the pressure receiving member lifted pivot shaft.
When the pressure receiving member lifts pivot shaft, during energy supply power that opposing is provided by energy supply device 30, the circle that their top towards headrest of circular mobile link 14 beginnings changes the position moves.
As above illustrated, because circular mobile link 14 is by starting from the input of the load of passenger's pelvis area, therefore, when circular mobile link started, the influence that acts on the impact load on passenger's the back portion had been lowered.
In addition, although when the transfer of the inertia on backward directions takes place, passenger's pelvis area is short relatively to the mobile stroke (shifting stroke) of pressure receiving member 34,, its pressure that is applied to the pressure receiving member is enough powerful.Because above content, when the pressure from the load of passenger's pelvis area was applied in, circular mobile link 14 was started smoothly, and therefore, the influence that acts on passenger's impact load on one's body can be reduced fully.
In addition, after circular mobile link 14 started, owing to move from the load on the backward directions of passenger's pelvis area, circular mobile link circle continuously moved to the change position, top of headrest along with pressure receiving member 34; And along with the vertical axes 34a of pressure receiving member owing to the transfer from the inertia on the backward directions of passenger's back portion is pressed, the pressure receiving member is rearward moving up.Because the circular continuously top that moves to headrest of above-mentioned action, circular mobile link 14 changes the position, and is not delayed.
In other words, after circular mobile link 14 starts, along with being applied in from passenger's the pelvis area and the load of back portion, the circle of circular mobile link 14 towards change position, the top of headrest moves to be proceeded, and headrest continues to remain on change position, top by load.
Start because the circle of circular mobile link 14 moves by the load from passenger's pelvis area, therefore, the impact load that produces during passenger's back portion press pressure receiving member 34 has been lowered undoubtedly.Equally based on this viewpoint, circular startup of moving and circular continuation of moving can be guaranteed, and can not force the passenger to experience impact load.
Because pressure receiving member 34 is built into the load of reception from passenger's pelvis area and back portion, therefore, even when the load from passenger's pelvis area is not applied to pressure receiving member 34 in correct mode, also can receive by pressure receiving member 34 in correct mode from the load of passenger's back portion; Therefore, cause that circular mobile link 14 moves circularly, and cause that headrest 12 is transferred to top and changes the position, this has further improved headrest will be by the certainty of emergency start.
In this, if passenger's back portion because the transfer of inertia on the backward directions, and greatly sink to back of seat with regard in the seating face, the pressure that is applied to pressure receiving member 34 by passenger's pelvis area may be lowered owing to the change of posture.
Yet, the top that circular mobile link 14 is supported on headrest changes the position, the energy supply power that opposing is provided by energy supply device 30, in other words, when the vertical axes 34a of pressure receiving member when pushing from the load of passenger's back portion, headrest 12 is supported on top and changes the position, wherein should cause from the transfer by the inertia on the backward directions of passenger's back portion of the load of passenger's back portion; Therefore, except the load of necessary dependence, can realize that still headrest is remained on top changes the position from passenger's pelvis area.Therefore, can realize easily that initial start performance and startup keep performance, wherein, the initial start performance is not applied to the passenger by compulsion with impact load, keeps performance and does not rely on load from passenger's pelvis area and start.
In addition, when rear end collision takes place, when the pressure receiving member receives from the load of passenger's pelvis area and back portion, the pressure receiving member can rearward move up, this can realize by the circular crank member 36 that moves by pressure receiving member 36 is connected to simply, and this helps simplified construction.In addition, required member only is these two kinds of members, that is, and and pressure receiving member 34 and crank member 36, and these members can assemble by the circular crank member 36 that moves by pressure receiving member 34 is connected to simply; This assembling does not need high-caliber precision, and it can carry out apace and easily.In addition, pressure receiving member 34 can rearward move up according to moving freely, and need not led or limited by the ways that is equipped with pilot hole; Therefore, it can move apace, and can have high-caliber operability.
Playing reception forms by having flexible rod member from the pressure receiving member 34 of the effect of the load of passenger's pelvis area and back portion; Therefore, when the load that applied from passenger's pelvis area and back portion, the bending of pressure receiving member, and this bending has alleviated the pelvis area that is applied to the passenger and the impact load of back portion.
Carry one in passing, as restoring force, the energy supply power that is provided by energy supply device 30 is applied constantly, so that make headrest get back to the bottom initial position; Therefore, be necessary, change the position so that headrest is remained on top to 12 power that apply above energy supply power of resting the head on.
Fig. 5 is the vertical amplification cross sectional drawing of the top that the is in headrest part excision of chair backrest structure when changing the position.
Change the position on top, torque T 1 (=P1 * L1) and torque T 2 (=P2 * L2) act on the pivot shaft respectively, torque T 1 (=P1 * L1) plays the effect that circular mobile link 14 is moved circularly on its direction of operating (anticlockwise direction as shown in Figure 5), and torque T 2 (=P2 * L2) plays the effect that makes circular mobile link 14 get back to their inceptive direction (clockwise direction as shown in Figure 5).
P1: move to backward directions and load on the direction of operating that causes by the passenger.
L1: wave between the strong point (waving supporting pin 16) and the pivot shaft perpendicular to the distance on the direction of P1.
As shown in Figure 5, when circular mobile link 14 moves circularly so that 12 the position change of will rest the head on is during to change position, top, L2 become be far smaller than L1 (L2＜＜L1), and therefore, the moment of torsion 2 on the Return-ing direction becomes very little, as shown belowly go out:
T2＜＜T1
In other words, change the position, even the resistibility of the energy supply power that opposing provides by energy supply device 30 can enough relatively little power be provided on the top of headrest; Therefore, if be applied to the value that the load from passenger's pelvis area and back portion of pressure receiving member 34 equals to be scheduled to or be higher than predetermined value, then resting the head on 12 can remain on top and change the position.Therefore, will rest the head on 12 remains on top safely and changes the position, and obtains the high-caliber maintenance performance possibility that becomes.
When circular mobile link 14 is further moved and the line of force of P2 surpasses when waving supporting pin 16 circularly, torque T 2 no longer plays the effect of the moment of torsion that is used for Return-ing direction, and becomes the moment of torsion of direction of operating; Therefore, headrest 12 is remained on change position, top safely.
In addition, in this worked example, energy supply device is provided with in one way, make when being in the change position, top of headrest, circular mobile link 14 wave the strong point near, the line of force of the energy supply device of being made up of extension coil spring 30 is positioned at waves between the strong point (wave and support 16) and the pivot shaft 20.When energy supply device 30 is provided with according to aforesaid way, change the position on top, the efficient of transmitting energy supply power has been reduced wittingly; Therefore, headrest 12 can (return initiating power) can be reduced safely from the startup of returning of change position, top.
As above illustrated, retainer support 24 is supported with respect to the bracket guides 26 on the upper component 18b that is arranged on backrest frame, so that be free to slide contiguously with bracket guides, and so that freely tilts.In addition, the lower edge of retainer support 24 is fixed on the pivot shaft 20, and this pivot shaft 20 is configured to be suspended on athwart this on circular mobile link in a left side and the right circular mobile link 14, and is configured to and can be rotated.Therefore, in the time of when be imported into headrest 12 by the rebound load (rebound load) that rear end collision produced in, the component F of this load as shown in Figure 5, acts on the upside that waves the strong point (waving supporting pin 16) of circular mobile link.In other words, the component F of above-mentioned load will and work as the power that circular mobile link 14 is moved to circularly change position, top, to move circular mobile link 14 circularly in the counterclockwise direction near waving support 16; Therefore, headrest 12 can be owing to rebound load is back to its underpart initial position.
In addition, on the front panel of pressure receiving member 34 and crank member 36, for example also be provided with, flexible support plate and S spring, flexible support plate is supported between the left-side member and right side member of backrest frame with flexible way by extension coil spring etc., the S spring is configured to be suspended on athwart on the left-side member and right side member of backrest frame, and for fear of making accompanying drawing complicated, they are not shown in the drawings.Stay bearing plate and S spring are configured to cover their front panel, thus between pressure receiving member 34 and crank member 36 slot milling; Because there is this space, when taking one's seat, the pressure receiving member does not receive the load that is caused by sinking.
Worked example 2
Fig. 6 (A) and Fig. 7 show the vertical cross sectional drawing of chair backrest structure of the vehicle seat that is used for another worked example of the present invention (worked example 2) of the bottom initial position that is in headrest and the transparent view of part excision respectively, and Fig. 6 (B) shows the vertical cross sectional drawing that its top that is in headrest changes the position.Here, Fig. 6 (A), Fig. 7 and Fig. 6 (B) correspond respectively to Fig. 1, Fig. 2 and the Fig. 3 in the worked example 1.
Worked example 2 only is with the difference of worked example 1: crank member is configured to be suspended on athwart on a pair of left support link and the right support link, and remaining part is identical with above-mentioned worked example 1.Therefore, difference only is described below.
Be provided with a pair of support link 40 so that connecting crank member 36 and circular mobile link 14, and crank member mobile is passed to circular mobile link 14.
Clearly illustrate (B) He among Fig. 7 that as Fig. 6 (A) for example, this forms with the second connecting rod 42 that is positioned at lower position support link 40 is positioned at upper position by combination first connecting rod 41.Except above content, the upper limb of first connecting rod 41 is installed on the circular mobile link 14 by means of waving supporting pin 41a, so that can wave, the lower edge of second connecting rod 42 is installed on the side member 18a of backrest frame by means of waving supporting pin 42a, so that can wave, and linking together by means of waving supporting pin 41b towards the edge of first connecting rod and second connecting rod is so that can wave.In this way, make that the upper limb (upper limb of first connecting rod 41) of support link 40 is movably on upper direction and bottom direction.
The edge 36a of crank member is installed into and can waves on the supported hole 41c that is formed on the first connecting rod 41.Guide 41d is set on the first connecting rod 41, and the edge 36a of crank member is clipped in the middle by the guide groove 41d1 that is formed in the guide.
With this structure, because the circle of crank member 36 on backward directions when mobile and mobile, crank member is pushed guide 41d, to lift first connecting rod 41 when 34.Because above action, pressure (pressure on direction of operating) is applied to circular mobile link from support link 40, thereby play on the anticlockwise direction shown in Fig. 6 (A) (pointing to the direction of the change position, top of headrest), near waving the strong point (waving supporting pin 16) of they, the energy supply power that opposing is provided by energy supply device 30 and the effect of moving circular mobile link 14 circularly.
What in other words, use in above worked example 1 is that this pressure moves circular mobile link 14 by pivot shaft 20 circularly on the direction of change position, the top of headrest by the mobile backward pressure that causes of pressure receiving member 34.In this worked example (worked example 2), except above-mentioned pressure, the circle of crank member 36 moves by moving backward of pressure receiving member 34 and produces, and the pressure that is produced on direction of operating is applied to circular mobile link by support link 40.
In this way, be applied in the structure that circular mobile link 14 moves with the circle of more effectively utilizing crank member 36 at the pressure that the circle by crank member 36 moves generation, can realize that the fast speed of circular mobile link and the circle of safety move, and the startup of circular mobile link and circular continuation of moving can be guaranteed, and can be with on one's body the impact load Qiang Shizai passenger.In addition, when applying pressure, can reduce the pelvis area that is applied to the passenger and the impact load of back portion.
In addition, support link 40 is not limited by the structure shown in the figure, as long as they can move the circle of crank member 36 and be applied to circular mobile link 14, gets final product as the pressure on the direction of operating.For example, guide 41d1 can adopt any form, lifts support link 40 when being applied in as long as it moves in the circle of crank member 36, and moves circular mobile link 14 circularly get final product on direction of operating.
According at least one embodiment of the present invention, when rear end collision takes place, because the load that applies by passenger's pelvis area, pressure receiving member removable crank member circularly on backward directions and upper direction, and move up in backward directions and top square simultaneously, to move circular mobile link circularly; Therefore, although when initial start, be applied to the pressure receiving member from the load of passenger's pelvis area, after the pelvis area applied load by the passenger, the load that is applied by passenger's back portion also is applied on the pressure receiving member.Because above content, under situation about having received from the load of passenger's pelvis area and back portion, the pressure receiving member moves up in backward directions and top square, change the position so that circular mobile link moves to the top of headrest circularly, and headrest is transferred to its change position, top smoothly.Then, by making the load of pressure receiving member reception, make headrest can continue to keep changing at an upper portion thereof the position from passenger's pelvis area and back portion.
Except above content because in initial start, the pressure receiving member be since be applied to its from the load of passenger's pelvis area and mobile, therefore, in initial start, do not have excessive load to be applied to passenger's back portion.
In other words, structure according at least one embodiment of the present invention, can realize easily that initial start performance and startup keep performance, wherein, the initial start performance is not applied to the passenger by compulsion with impact load, keeps performance and does not rely on load from passenger's pelvis area and start.
In addition, rear end collision is taking place, when the pressure receiving member has received from the load of passenger's pelvis area and back portion, the pressure receiving member can rearward move up, this can realize by the circular crank member that moves by the pressure receiving member is connected to simply, and this helps simplified construction.In addition, required member only is these two kinds of members, that is, and and pressure receiving member and crank member, and these members can assemble by the circular crank member that moves by the pressure receiving member is connected to simply; This assembling does not need high-caliber precision, and it can carry out apace and easily.In addition, the pressure receiving member can rearward move up according to moving freely, and therefore, it can move apace, and can have high-caliber operability.
Worked example 3
Below be the explanation at least one embodiment of the present invention, it uses accompanying drawing as reference.Here, Fig. 8 (A) constitutes respectively to (C) and Fig. 9: about the one group of skeleton process figure that utilizes Lordosis support as the worked example (worked example 3) of crank member of the present invention, and the skeleton diagram that keeps structure, wherein this group skeleton process illustrates crank member and how to keep.
In Fig. 8 and Fig. 9, crank member is presented as the Lordosis support of crank shape.As shown in Figure 9, in take one's seat personnel's the position of lumbar vertebrae of support, the mode that Lordosis support (crank member) 112 moves with circle is installed between the body side frame 122L and 122R (load-carrying element) of the backrest frame 122 that is used for vehicle seat, plays the effect of alleviating fatigue.Application for Lordosis support of the present invention only is an example, and the structure of Lordosis support itself is well-known, and it does not constitute essence of the present invention; Therefore, omitted its detailed description.
Lordosis support 112 forms crank shape by the solid bar that bending for example is formed from steel, it repeatedly lays respectively at left side and right side, and it comprises horizontal core 112c, is positioned at sloping portion (slope) 112b between core 112c and a left side (or right) the edge arm, and horizontal arm 112a1 and 112a2.In addition, the left hand edge of arm 112a1 and arm 112a2 and right hand edge are bent to the shape of approximate alphabetical L.For example, the edge of arm 112a1 and arm 112a2 is bent about 90 ° on downward direction.
Lordosis support 112 forms by running through the bar material that its whole length has same diameter usually; Yet as required, it can be become by the clavate with different-diameter.
The patchhole 124 of keyhole starts from than large diameter hole 124a, and extend to slotted hole 124b continuously than minor diameter, this patchhole 124 is formed on load-carrying element, promptly is used for the body side frame 122L of backrest frame 122 of vehicle seat and each of 122R.Here, the length of patchhole 124 forms and makes part 112a ' 1 that the approximate letter of arm of Lordosis support is L shaped and 112a ' 2 to be inserted on the direction of approximate horizontal to insert in the hole.In other words, in Fig. 8 (A), the length h1 on the vertical direction of patchhole 124 is greater than the length h2 on the vertical direction of the L shaped part 112a ' 1 of approximate letter; And width (diameter) d1 of the slotted hole 124b of patchhole is greater than the diameter d 2 of arm 112a1.
Figure 10 is the part sectional view that keeps structure, and it shows the relation between the L shaped part of patchhole and approximate letter.
As shown in figure 10, patchhole 124 forms and makes that slotted hole 124b is being not to extend on the identical direction of the direction that is applied in load, and slotted hole 124b to be formed on not be circular moving range A position overlapped with the L shaped part 112a ' 1 of the approximate letter at arm edge.In this worked example, slotted hole 124b extends upward in top square in the mode of approximate vertical.
In other words, in Lordosis support 112, as shown by arrows, load F acts on to seat rear from the seat front portion with the direction of approximate horizontal.Yet because the slotted hole 124b of patchhole does not extend on the direction of approximate horizontal, therefore, arm 112a1 can be from not sliping off than large diameter hole 124a, and this feasible arm is held in a predetermined position becomes possibility.
As long as the L shaped part 112a ' 1 of approximate letter of the part of arm 112a1, move according to the circle of Lordosis support 112, also circularly move to the position shown in the dotted line, the slotted hole 124b of patchhole just can not be positioned at its circular moving range A.Therefore, L shaped part 112a ' 1 and the slotted hole 124b of approximate letter comes into line never, and therefore, the L shaped part of approximate letter can not come off from slotted hole.
In this worked example, patchhole 124 is constructed such that slotted hole 124b extends upward in top square in the mode of approximate vertical.Yet, as long as slotted hole 124b extends not being applied on the identical direction of the direction of Lordosis support with load, and it is, just enough as long as slotted hole 124b is not positioned at the circular moving range A position overlapped with the L shaped part 112a ' 1 of the approximate letter at arm edge; Therefore, the extendible direction of slotted hole is not restricted to upper direction.
Next be the how explanation supported of left side frame (load-carrying element) 122L by backrest frame about the left arm 112a1 of Lordosis support, it utilizes Fig. 8 (A) to (C) as reference.In addition, much less, the mode that left side frame (load-carrying element) 122R of the left arm 112a2 of Lordosis support by backrest frame supports identical with shown in Fig. 8 (A) to (C).
As mentioned above, the L shaped part 112a ' 1 of approximate letter is inserted into patchhole 124, and it is formed on by crooked Lordosis support 112 on the edge of arm 112a1 of Lordosis support.
Shown in Fig. 9 (A), the L shaped part 112a ' 1 of approximate letter is formed on the edge of arm 112a1, and align with patchhole 124 on the direction of approximate horizontal, and the L shaped part 112a ' 1 of approximate letter is horizontally moved subsequently, inserts in the hole so that be inserted into as shown by arrows.
Thereafter, shown in the arrow among Fig. 8 (B), arm 112a1 be moved downward with arrive patchhole than large diameter hole 124a.Shown in Fig. 8 (C), lining 130 is provided with around the arm than the large diameter hole place that is positioned at patchhole, makes this arm be supported on and inserts in the hole.
Fig. 9 (A) (B) constitutes the front view and the transparent view of lining respectively.
As Fig. 9 (A) (B) shown in, lining 130 forms by making main body 130a and flange portion 130b form one, wherein the diameter of this flange portion 130b is greater than the diameter of main body.Main body is designed to and being combined together than large diameter hole 124a of patchhole.In addition, fastener 130c is formed on the outer surface of main body 130a.
When the cooperating of the main body 130a of lining and patchhole than large diameter hole 124a, fastener 130c and periphery than large diameter hole, and play body side frame 122L is clipped in the effect that lining can not come off that makes between fastener and the flange portion 130b.In this worked example, two fastener 130c are set at 180 ° of positions that separate each other.
For example, fastener 130c is formed skewed shape, wherein, height increases on the side of flange 130b approaching, and reserve the space that is used to provide groove 130c ', 130c ' locates at this groove, and body side frame 122L is sandwiched in towards between the edge surface and flange portion of flange portion, and does not almost have play.
As long as being combined together and lining can not come off than large diameter hole 124a of lining 130 and patchhole, fastener 130c has just sufficiently worked, and is not limited by the shape shown in the figure.For example, the quantity of fastener is not limited to 2, and it can be three or more.In addition, as long as the shape of fastener 130c is the form with groove 130c ', 130c ' locates at this groove, and body side frame 122L is sandwiched in towards between the edge surface of flange portion and the flange portion and almost do not have play, and then fastener 130c just can sufficiently work.Except the shape of segmentation, fastener 130c can take to have the shape of the frustum of a cone of the circular trough that body side frame can be clipped in the middle.
Yet, when fastener 130c is formed the shape of segmentation, and when being set at a plurality of separated position on the periphery of main body 130a of lining, as shown in FIG., the main body of the lining easy deformation that becomes; Therefore, lining 130 can with being combined together more smoothly of patchhole than large diameter hole 124a.
In the outside of framework 122L, lining nut 130 be combined together from the L shaped part of the approximate letter at the edge of the L shaped part 112a ' 1 of approximate letter, flange 130b is towards the outside simultaneously; Lining nut 130 slides along the L shaped part of approximate letter, arrives arm 112a1 up to it; And be formed on then, fastener 130c on the periphery of main body be pressed to against patchhole than large diameter hole 124a.Then, main body 130a distortion, insert than large diameter hole 124a and be combined together than large diameter hole 124a; Fastener 130c returns their original-shape subsequently and closely cooperates with periphery than large diameter hole, thereby body side frame 122L is sandwiched among the groove 130c ' between flange portion 130b and the fastener.
Similarly, in the middle of the right side frame 122R of backrest frame also is sandwiched in by lining 130.
By making left side frame 122L and right side frame 122R middle by being engaged in being sandwiched in of patchhole than the lining in the large diameter hole 124a 130, the left arm 112a1 of Lordosis support and right arm 112a2 are supported by patchhole 124 in the circular mode that moves freely, and Lordosis support 112 (crank member) is supported by left side frame and right side frame (load-carrying element) in the circular mode that moves freely.
In addition, when the edge of the arm 112a1 of Lordosis support and 112a2 is bent to the shape of approximate alphabetical L, form L shaped part 112a ' 1 and the 112a ' 2 of approximate letter.Therefore, for the arm edge, provide the special process such as step forming process or circular trough forming process to become unnecessary, this makes cost-cutting become possibility.
In addition, even when having served as the loading gage lotus and being applied to Lordosis support 112, part 112a ' 1 that the approximate letter in the patchhole that is inserted into body side frame 124 on the arm edge is L shaped and 112a ' the 2 also patchhole of beared part pin and can resist load.Even when lining 130 was damaged, arm can not come off from patchhole yet therefore.In other words, although to such an extent as to this simple structure gets by the edge of bend arm 112a1 and 112a2 just can realize simply,, this maintenance structure still can be resisted load, and prevents that fully arm from coming off from patchhole 124.
Because around left arm 112a1 and the lining 130 of right arm 112a2 and being combined together of patchhole of Lordosis support, therefore, prevented to be positioned at part the moving on slotted hole direction L shaped than the approximate letter of large diameter hole than large diameter hole 124a.Therefore, under the situation of the normal use that does not have excessive load to be applied in, arm 112a1 and 112a2 can not come off from patchhole 124.
Even when the edge of the left arm 112a1 of Lordosis support and right arm 112a2 is formed the shape of approximate alphabetical L, be set on body side frame 122L and the 122R because wherein inserted the patchhole 124 of approximate letter L shaped part 112a ' 1 and 112a ' 2, can carry out smoothly so insert operation.In addition, by mounting bush 130 simply, arm 112a1 and 112a2 are supported by patchhole 124 in the circular mode that moves freely, and therefore, lining can easily be installed.Therefore, need any operation of speciality tool to become unnecessary, this has increased operability.
Lining 130 can be by metal, hard rubber, plastics, or other materials forms.Yet when using the lining 130 that is formed by hard rubber or plastics, it has the flexibility of suitable degree; Therefore, when keeping level and smooth circle and moving, provide a supporting role and do not send the sound or the noise possibility that becomes.
When lining 130 is designed to constitute the split bushing that has slot, lining 130 can be installed into can't help the L shaped part 112a ' 1 of approximate letter and the edge of 112a ' 2 and cooperates, but cooperate by approximate alphabetical L shaped part or the appropriate location on arm 112a1 and the 112a2, this has further increased operability.
Worked example 4
Figure 12-17 illustrates worked example 4, and it is the further development of worked example 1.Figure 12 and Figure 13 illustrate the back of seat 10 that has waist attachment 200.Waist attachment 200 is connected to pressure receiving member 34, so that provide lumbar support to the occupant, and so that provides target to emergency start headrest 12.Waist attachment 200 has the periphery of essentially rectangular as shown in figure 12, has roughly contoured back of seat profile (generally contoured seatback profile) as shown in figure 13 simultaneously.Waist attachment 200 is formed by the load-carrying element of waffle-like pattern, and the load-carrying element of this waffle-like pattern forms the row and column that has a series of truss therebetween.During impact environment, in the lower area that truss accumulates in input force is associated.Waist attachment 200 can be formed by high-intensity plastics or analogue.
A pair of extension coil spring 202 is installed to the upper lateral side of waist attachment 200 separately, and be installed among the side member 18a, so that support the upper area of waist attachment 200, the position to the top part of waist attachment 200 provides compliance simultaneously.
With reference to Figure 14-17, the bottom part of waist attachment 200 comprises a pair of maintenance hook 204, so that be connected to the lower horizontal axle 34b of pressure receiving member 34.Between erecting stage, keep the sloping edge of hook 204 to be pressed to against horizontal shaft 34b, make to be retained hook 204 distortion against the joining edge (abutment edge) that keeps hook 204 up to horizontal shaft 34b.As shown in figure 17, waist attachment 200 also is provided with a pair of spaced rib 206, and wherein each spaced rib 206 is arranged on the relative transverse side of lower part 34a2 of vertical axes 34a of pressure receiving member 34.Rib 206 provides for the control of waist attachment 200 with respect to the side travel of pressure receiving member 34.
Be accelerated the result who enters back of seat 10 as the occupant, waist attachment 200 receives input force, and input force is passed to the horizontal shaft 34b of pressure receiving member 34, so that activate emergency start headrest 12 as above with reference to worked example 1 illustratedly.
Worked example 5
In Figure 18, worked example 5 illustrates the back of seat 10 and the waist attachment 200 of worked example 4.In addition, pair of links 208 is connected to the lower area of waist attachment 200 and is connected to the side member 18a of back of seat 10.The lower area of 208 pairs of waist attachment 200 of connecting rod provides restriction with respect to back of seat 10 mobile.This connecting rod can be formed by metal filament or any suitable material.
Worked example 6
Figure 19 illustrates worked example 6, and this worked example 6 is the modification of worked example 4.Back of seat 10 is illustrated as and has waist attachment 200.A pair of extension coil spring 210 is added to the bottom part of waist attachment 200, and all extends from transverse side, and is connected among the side member 18a of back of seat 10 one.The bottom part of 210 pairs of waist attachment 200 of spring provides compliance, and is used for not existing thereon under the situation of power and makes waist attachment 200 turn back to design attitude.
Much less, above worked example only is used to illustrate the present invention, and does not limit the present invention in any way; Any modification and the change of the present invention in its technical scope is included in the embodiments of the present invention.
Industrial usability
In general, the present invention is applicable to the headrest that can freely install or remove from back of seat.Yet applicability of the present invention is not limited to above purposes.The present invention is also applicable to the headrest that can not freely install or remove from back of seat.
In worked example 3, although be the situation of crank member, provide explanation about the Lordosis support that is used for vehicle seat, applicability of the present invention is not limited to this situation.The present invention can be widely applicable for the maintenance structure that is installed in the crank member on the load-carrying element in the circular mode that moves freely.For example, the present invention is applicable to the maintenance structure of (being used for the startup headrest of vehicle seat) crank-like pressure receiving member, wherein when rear end collision takes place, when receiving the load from the personnel of taking one's seat, this crank-like pressure receiving member makes headrest in upper direction with forwards upwards tilt by compulsion.
The explanation of reference number
10: back of seat
12: headrest
14: circular mobile link
16: wave supporting pin (strong point that waves that is used for circular mobile link)
20: pivot shaft
24: the retainer support
26: bracket guides
28f, 28r: antetheca and rear wall
28a, 28b: first bearing surface and second bearing surface
30: energy supply device
34: the pressure receiving member
34a: vertical axes
34b: horizontal shaft
112: Lordosis support (crank member)
112a1,112a2: arm
112a ' 1,112a ' 2: the L shaped part of approximate letter
122: backrest frame
122L, 122R: body side frame (load-carrying element)
124: patchhole
124a: than large diameter hole
124b: than the slotted hole of minor diameter
130: lining
130a: main body
130b: flange portion
130c: fastener
200: waist attachment
202: coil spring
204: keep hook
206: rib
208: connecting rod
210: coil spring
1. task
Task of the present invention is to realize that initial start performance and startup keep performance, and does not make structure complicated, and wherein, the initial start performance is not applied to impact load the passenger by compulsion, keeps performance and does not rely on load from passenger's pelvis area and start.
2. the means that are used to the task that realizes
The pressure receiving member 34 that is designed to receive from the load of passenger's pelvis area and back portion is set at back of seat inside.Pressure receiving member 34 forms the shape of seeing approximate letter U from the front, and this makes the pressure receiving member can receive from the load of passenger's back portion with from the load of passenger's pelvis area.Pressure receiving member 34 is connected to crank member 36, and this crank member 36 is configured to be suspended on athwart on left-side member and the right side member 18a.When rear end collision takes place, because the load that applies by passenger's pelvis area, pressure receiving member removable crank member 36 circularly on backward directions and upper direction, and move to backward directions and upper direction simultaneously, by the energy supply power that extension spring 30 provides, come to move circularly circular mobile link with opposing; Therefore, after the pelvis area applied load by the passenger, the load that is applied by passenger's back portion also is applied on the pressure receiving member, to continue to move circularly circular mobile link.
3. problem
In the structure that uses lining nut and E to encircle to prevent arm from coming off, need special technology and special instrument, wherein special technology is different with the technology that is used to form crank member.
4. be used to the means of dealing with problems
The edge of the arm 112a1 of Lordosis support (crank member) is bent to form and is similar to the L shaped part 112a ' 1 of letter, and the L shaped part of approximate letter is inserted in the patchhole 124 that is formed on body side frame (load-carrying element) 122L.Patchhole 124 is taked the shape of keyhole, and it starts from than large diameter hole and extends to slotted hole than minor diameter continuously, this patchhole 124 forms a certain length, so that the L shaped part of approximate letter can be inserted on the direction of level inserts in the hole.The L shaped part 112a ' 1 of approximate letter be inserted into pass patchhole 124 after, the lining 130 that has flange is installed around arm 112a1 by the L shaped part of approximate letter, and with being combined together of patchhole than large diameter hole 124a.Therefore, the mode that moves with circle of the arm of Lordosis support is supported in the patchhole of body side frame.
Though diagram and described embodiments of the present invention, and do not mean that these embodiment diagrams and described all possible form of the present invention.But the vocabulary of Shi Yonging is descriptive vocabulary and nonrestrictive vocabulary in this manual, and should be understood that under the situation that does not deviate from the spirit and scope of the present invention and can make various changes.

Claims (20)

1. the chair backrest structure of vehicle seat, this chair backrest structure is arranged on the transfer by the inertia on the backward directions of passenger's experience that the predetermined pressure receiving member reception of back of seat in-to-in is produced by rear end collision by making, change the position of headrest on upper direction and front direction by compulsion, described chair backrest structure comprises:
Circular mobile link in an a pair of left side and right circular mobile link, circular mobile link in a described a pair of left side and right circular mobile link are installed in respectively on the left-side member and right side member of backrest frame, so that can wave;
Pivot shaft, it laterally is arranged to be suspended on athwart the predetermined edge of circular mobile link in a described a pair of left side and right circular mobile link, make when described circular mobile link is mobile circularly, along the mobile possibility that becomes of circular arc on upper direction and bottom direction; And
Column retainer support, it is inserted in the headrest pillar and by described headrest shore supports, described headrest pillar is to be provided with described pivot shaft all-in-one-piece mode, and described support is designed to pass the bracket guides on the upper component that is fixed on described backrest frame, so that be free to slide contiguously, and so that freely tilt with described bracket guides;
Wherein, therefore, resisting above-mentioned energy supply power and when mobile circularly, can guarantee that described headrest is in top and changes the position when described circular mobile link, is that fulcrum turns forward with described bracket guides simultaneously;
Wherein, above-mentioned pressure receiving member is fixed on the described pivot shaft via its upper end, so that move in response to described pivot shaft, and above-mentioned pressure receiving member is designed to the upwardly extending pressure receiving member in bottom side, so that receive the load from passenger's pelvis area and back portion; And
Wherein, above-mentioned pressure receiving member is supported by crank member, the left that described crank member is configured to be suspended on athwart described back of seat to right on, and be supported for and be rotated by means of axle, and be arranged so that laterally that circle on backward directions and upper direction moves and become possibility.
2. the chair backrest structure of vehicle seat as claimed in claim 1, wherein, above-mentioned pressure receiving member is formed the shape of seeing approximate letter U from the front, and have a pair of vertical axes and horizontal shaft, described a pair of vertical axes makes described pressure receiving member can receive the load from passenger's back portion, and described horizontal shaft makes described pressure receiving member can receive the load from passenger's pelvis area.
3. the chair backrest structure of vehicle seat as claimed in claim 1, wherein, described bracket guides is equipped with antetheca and rear wall, described antetheca and described rear wall have first bearing surface and second bearing surface separately, angle when the angle of inclination of described first bearing surface is in the bottom initial position of described headrest corresponding to described retainer support, and the angle of the top that the angle of inclination of described second bearing surface is in described headrest corresponding to described retainer support when changing the position, and described first bearing surface of described antetheca and described rear wall alternately forms the parallel plane that described retainer support can be clipped in the middle with described second bearing surface at the varying level place.
4. the chair backrest structure of vehicle seat as claimed in claim 1, it also comprises waist attachment, described waist attachment is connected to described pressure receiving member, so that provide lumbar support to the occupant, and so that provides target to described pressure receiving member.
5. the chair backrest structure of vehicle seat as claimed in claim 4, wherein, described waist attachment has the periphery of essentially rectangular, and has contoured back of seat profile.
6. the chair backrest structure of vehicle seat as claimed in claim 5, wherein, described waist attachment is formed with waffle-like pattern.
7. the chair backrest structure of vehicle seat as claimed in claim 6, wherein, described waist attachment also is included in the row of a series of load-carrying elements that have a series of truss therebetween and the row of a series of load-carrying elements.
8. the chair backrest structure of vehicle seat as claimed in claim 7, wherein, described a series of truss accumulate in the lower area of described waist attachment.
9. the chair backrest structure of vehicle seat as claimed in claim 4, it also comprises a pair of extension coil spring, each extension coil spring in the described a pair of extension coil spring is installed to the upper lateral side of described waist attachment, and be installed to described left-side member and described right side member, so that support the upper area of described waist attachment, the position to the top part of described waist attachment provides compliance simultaneously.
10. the chair backrest structure of vehicle seat as claimed in claim 4, wherein, described waist attachment also comprises a pair of maintenance hook, described a pair of maintenance hitcher has sloping edge, so that be connected to described pressure receiving member and keep described pressure receiving member.
11. the chair backrest structure of vehicle seat as claimed in claim 4, wherein, described waist attachment also comprises a pair of spaced rib, each spaced rib in the described a pair of spaced rib is arranged on the relative transverse side of described pressure receiving member, to provide control to described waist attachment with respect to the side travel of described pressure receiving member.
12. the chair backrest structure of vehicle seat as claimed in claim 4, it also comprises pair of links, each connecting rod in the described pair of links is connected to the lower area of described waist attachment, and be connected to one of described left-side member and described right side member, to provide restriction with respect to described left-side member and described right side member mobile to the lower area of described waist attachment.
13. the chair backrest structure of vehicle seat as claimed in claim 12, it also comprises a pair of extension coil spring, each extension coil spring in the described a pair of extension coil spring is connected to the bottom part of described waist attachment, and be connected to one of described left-side member and described right side member, provide compliance with bottom part, and make described waist attachment turn back to design attitude described waist attachment.
14. the chair backrest structure of vehicle seat, this chair backrest structure is arranged on the transfer by the inertia on the backward directions of passenger's experience that the predetermined pressure receiving member reception of back of seat in-to-in is produced by rear end collision by making, change the position of headrest on upper direction and front direction by compulsion, described chair backrest structure comprises:
Circular mobile link in an a pair of left side and right circular mobile link, circular mobile link in a described a pair of left side and right circular mobile link are installed in respectively on the left-side member and right side member of backrest frame, so that can wave;
Pivot shaft, it laterally is arranged to be suspended on athwart the predetermined edge of circular mobile link in a described a pair of left side and right circular mobile link, make when described circular mobile link is mobile circularly, along the mobile possibility that becomes of circular arc on upper direction and bottom direction; And
Column retainer support, it is inserted in the headrest pillar and by described headrest shore supports, described headrest pillar is to be provided with described pivot shaft all-in-one-piece mode, and described support is designed to pass the bracket guides on the upper component that is fixed on described backrest frame, so that be free to slide contiguously, and so that freely tilt with described bracket guides;
Wherein, therefore, resisting above-mentioned energy supply power and when mobile circularly, can guarantee that described headrest is in top and changes the position when described circular mobile link, is that fulcrum turns forward with described bracket guides simultaneously;
Wherein, above-mentioned pressure receiving member is fixed on the described pivot shaft via its upper end, so that move in response to described pivot shaft, and above-mentioned pressure receiving member is designed to the upwardly extending pressure receiving member in bottom side, so that receive the load from passenger's pelvis area and back portion; And
Wherein, above-mentioned pressure receiving member is supported by crank member, the left that described crank member is configured to be suspended on athwart described back of seat to right on, and be supported for and be rotated by means of axle, and being arranged so that laterally that circle on backward directions and upper direction moves becomes possibility, and the circle of described crank member moves through support link and is passed to circular mobile link, and the circle that becomes described circular mobile link opposing energy supply power moves.
15. the chair backrest structure of vehicle seat as claimed in claim 14, wherein, above-mentioned pressure receiving member is formed the shape of seeing approximate letter U from the front, and have a pair of vertical axes and horizontal shaft, described a pair of vertical axes makes described pressure receiving member can receive the load from passenger's back portion, and described horizontal shaft makes described pressure receiving member can receive the load from passenger's pelvis area.
16. the chair backrest structure of vehicle seat as claimed in claim 14, wherein, described bracket guides is equipped with antetheca and rear wall, described antetheca and described rear wall have first bearing surface and second bearing surface separately, angle when the angle of inclination of described first bearing surface is in the bottom initial position of described headrest corresponding to described retainer support, and the angle of the top that the angle of inclination of described second bearing surface is in described headrest corresponding to described retainer support when changing the position, and described first bearing surface of described antetheca and described rear wall alternately forms the parallel plane that described retainer support can be clipped in the middle with described second bearing surface at the varying level place.
17. be used for the maintenance structure of crank member, wherein, the left arm edge of crank member and right arm edge are bent to the shape of approximate alphabetical L respectively, described maintenance structure comprises:
Left side load-carrying element and right load-carrying element, it all has the patchhole of the keyhole shape that runs through formation, and described patchhole starts from than large diameter hole, and extending to slotted hole continuously than minor diameter, the length of described patchhole makes the L shaped part of approximate letter at arm edge of described crank member can be inserted into described inserting in the hole on the direction of level; And
Lining, it is designed to be engaged in the described than in the large diameter hole of described patchhole, and is configured to the arm around described crank member, and described lining is fitted to the described than in the large diameter hole of described patchhole;
Wherein, therefore, described crank member is maintained between described left load-carrying element and the described right load-carrying element.
18. the maintenance structure that is used for crank member as claimed in claim 17,
Wherein, described lining is formed by hard rubber or plastics, and the mode with one comprises its main body and flange portion, and described main body is configured to be combined together than large diameter hole with the described of described patchhole, and the diameter of described flange portion is greater than described diameter than large diameter hole;
Wherein, described lining also comprises fastener, described fastener and described periphery than large diameter hole, and described load-carrying element is clipped in the space between described fastener and the described flange portion, described flange portion are formed on the outer surface of described main body of described lining.
19. the maintenance structure that is used for crank member as claimed in claim 18,
Wherein, described fastener is formed on a plurality of positions that separate on the outer surface of described main body of described lining.
20. the maintenance structure that is used for crank member as claimed in claim 17,
Wherein, the described slotted hole of described patchhole extends on the identical direction of the direction that is not applied in load, and described patchhole is formed on not the circular moving range position overlapped with the L shaped part of the described approximate letter at described arm edge.
CN200880101184A 2007-07-31 2008-07-29 Seat back structure of vehicle seats and retaining structure for a crank member Pending CN101784416A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2007-198558 2007-07-31
JP2007198558 2007-07-31
JP2007-211334 2007-08-14
JP2007211334A JP4667431B2 (en) 2007-08-14 2007-08-14 Crank member holding structure for vehicle seat
US4171508P 2008-04-02 2008-04-02
US61/041,715 2008-04-02
PCT/US2008/071456 WO2009018266A1 (en) 2007-07-31 2008-07-29 Seat back structure of vehicle seats and retaining structure for a crank member

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Publication Number Publication Date
CN101784416A true CN101784416A (en) 2010-07-21

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DE (1) DE112008001946T5 (en)
WO (1) WO2009018266A1 (en)

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CN102529775A (en) * 2010-12-29 2012-07-04 株式会社塔捷斯 Seat back structure of vehicle seat and method for inhibiting head tremor damage for seat back of vehicle seat
CN103269904A (en) * 2010-12-24 2013-08-28 提爱思科技股份有限公司 Vehicle seat
CN104039648A (en) * 2012-01-05 2014-09-10 B/E航空公司 Adjustable headrest for an aircraft seat
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CN108143159A (en) * 2018-02-07 2018-06-12 深圳市华仕杰家居用品有限公司 Chair back waist support linkage mechanism
WO2023141742A1 (en) * 2022-01-25 2023-08-03 Cushy Holdings, Inc Headrest for furniture

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DE102009049946B4 (en) * 2009-09-16 2015-04-02 Johnson Controls Gmbh Headrest adjustable in X direction
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CN106494280B (en) * 2016-11-09 2018-10-26 合肥江瑞汽车零部件有限公司 Automotive seat and automobile

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CN103269904B (en) * 2010-12-24 2016-01-06 提爱思科技股份有限公司 Seat
CN102529775B (en) * 2010-12-29 2015-07-22 株式会社塔捷斯 Seat back structure of vehicle seat and method for inhibiting head tremor damage for seat back of vehicle seat
CN102529775A (en) * 2010-12-29 2012-07-04 株式会社塔捷斯 Seat back structure of vehicle seat and method for inhibiting head tremor damage for seat back of vehicle seat
CN102205808B (en) * 2011-01-21 2012-11-28 浙江吉利汽车研究院有限公司 Backrest framework of vehicle seat
CN102205808A (en) * 2011-01-21 2011-10-05 浙江吉利汽车研究院有限公司 Backrest framework of vehicle seat
CN104039648A (en) * 2012-01-05 2014-09-10 B/E航空公司 Adjustable headrest for an aircraft seat
CN104039648B (en) * 2012-01-05 2016-01-13 B/E航空公司 For the headrest adjustable of aircraft seat
CN104219980A (en) * 2012-03-15 2014-12-17 提爱思科技股份有限公司 Vehicle seat
CN104219980B (en) * 2012-03-15 2017-03-15 提爱思科技股份有限公司 Vehicle seat
CN108143159A (en) * 2018-02-07 2018-06-12 深圳市华仕杰家居用品有限公司 Chair back waist support linkage mechanism
CN108143159B (en) * 2018-02-07 2023-08-29 深圳市华仕杰家居用品有限公司 Chair back waist rest linkage mechanism
WO2023141742A1 (en) * 2022-01-25 2023-08-03 Cushy Holdings, Inc Headrest for furniture

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Application publication date: 20100721