WO2018036538A1 - 一种汽车座椅前倾折叠调节装置 - Google Patents
一种汽车座椅前倾折叠调节装置 Download PDFInfo
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- WO2018036538A1 WO2018036538A1 PCT/CN2017/098797 CN2017098797W WO2018036538A1 WO 2018036538 A1 WO2018036538 A1 WO 2018036538A1 CN 2017098797 W CN2017098797 W CN 2017098797W WO 2018036538 A1 WO2018036538 A1 WO 2018036538A1
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- seat
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- slide rail
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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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/12—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable and tiltable
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- the invention belongs to the technical field of automobile seat structures, and in particular relates to a seat device which can be folded forward and forward.
- the prior art car seat quick access system mainly unlocks the backrest by a cable and uses the flip angle of the backrest to drive the unlocking rail.
- the rear-row personnel that this structure can provide have limited space for access, and it is not convenient to get on and off the vehicle, and the assembly process is complicated.
- the space that can be vacated is extremely limited, and the comprehensive effect is not good.
- the prior art also has an improved car seat easy-entry structure, for example, Chinese Patent Application No.: 201110274054.3, entitled “Easy Access Seat Release System for Car Seats", Chinese Patent Application, discloses a car seat Quickly entering the structure, the seat back motion controller of the application is mounted on a vehicle seat in the vehicle, the vehicle seat including a seat base and a seat back, the seat back being arranged to be vertical with respect to the seat base Pivot rotation between the position and the position where the forward tilt is easy to enter.
- the structure of the patent application is only that the seat back rotates relative to the base, that is, it has a certain meaning for the space release of the upper part of the seat, but it still has no change to the lower half of the seat, and the lower half is released.
- the space is easy to enter, and the structure of the application is complicated and difficult to operate.
- the comprehensive meaning of the implementation is not significant.
- the object of the present invention is to overcome the defects of the prior art that the quick access system of the automobile seat has a complicated structure, heavy weight and little effect, and provides a seat device which can be folded forward and forwarded to obtain release as much as possible.
- the large space is for the rear row of personnel to enter and exit, and the device operates with low effort.
- a car seat forward tilting adjustment device comprises a seat frame, a backrest frame and a handle, wherein the device further comprises a slide rail mechanism connected to the floor of the compartment, the slide rail mechanism comprising a fixed rail and a slide rail
- the slide rail, the rotary handle, the seat basin skeleton and the backrest skeleton are jointly formed as a four-bar linkage mechanism, the rotary handle and the seat basin skeleton, the seat basin skeleton and the backrest skeleton, the backrest skeleton and the slide rail, the slide rail and the rotary handle respectively pass through the hinge Connection; the device is provided with a locking mechanism.
- the slide rail and the fixed rail are merged and the slide rail is at the rear end position of the fixed rail, the device is in a normal use state, also called a rear limit position, at which time the lock mechanism is locked;
- the skeleton is folded forward toward the seat basin skeleton.
- the knob rotates counterclockwise, the four-bar linkage moves, the device rotates from the rear limit position and is switched to the front limit position by manual pushing. At this time, the whole device is lifted around the hinge joint of the slide rail and the handle, and the seat is lifted.
- the rear space is enlarged to facilitate the rear passengers to get on and off.
- the seat basin skeleton is separated from the slide rail, so that the seat can move forward longitudinally, generating an additional distance and making a larger space.
- the space meets the entry and exit of the rear row.
- the locking mechanism comprises a slide rail lock having one end connected to the lower end of the back frame and the other end releasably connected to the fixed rail connected to the floor of the compartment.
- the rail lock is unlocked and the rail is longitudinally free.
- At least one of the hinge joints is provided with a coil spring.
- the coil spring is placed at a certain rotation point of the seat folding mechanism to provide assistance when the seat is rotated and lifted, which makes the operation easy.
- the coil spring is disposed at a hinge joint of the back frame and the slide rail; the coil spring is a planar scroll spring, and the planar scroll spring is installed in an outer end and the inner end is rotated.
- the stiffness of the planar scroll spring with the fixed inner end of the outer end is 25% greater than the stiffness of the planar scroll spring with the inner end fixed at the outer end, or the same angular deformation has a larger torque. %.
- the planar scroll spring is a variable-stiffness planar scroll spring, and the outermost end has a section of less rigid buffer.
- the locking mechanism is released, due to the sudden release of the coil spring torque and the operator's superimposed force, the angular acceleration between the related rotating parts is abruptly caused to collide, and the buffer section with the lower rigidity of the coil spring can be used to reduce the collision. Buffering effect.
- a torsion spring is disposed at a joint of the seat basin skeleton and the backrest frame, the torsion spring has a twist arm fixed on the seat basin skeleton, and the other twist arm is fixed on the backrest frame.
- the torsion spring is arranged on the rotating shaft of the seat back to provide a returning assistance when the seat back is adjusted, so that the backrest can be easily operated.
- a plurality of mounting plates are connected in the skeleton of the seat basin, and the skeleton of the seat basin is welded by a circular tube. This structure can improve the strength and stability of the seat frame.
- a limiting rod protruding upward is connected to the front end of the fixed rail, and the limiting rod is in contact with the front lower bottom of the skeleton of the seat basin to form a limiting mechanism for moving the seat forward to the foremost position.
- the front seat is folded forward to expand the space for entering and leaving the rear row;
- the four-bar linkage structure of the forward tilting mechanism makes the rotation easy and fast
- the four-bar linkage structure reduces the cost and saves assembly time
- the coil spring has a buffer section structure to avoid the impact phenomenon in the initial stage of forward tilting
- Figure 1 is a schematic view showing the structure of a first embodiment of the present invention
- Figure 2 is a schematic front view of a seat according to a first embodiment of the present invention.
- Figure 3 is a perspective view showing the appearance of the first embodiment of the present invention.
- Figure 4 is a schematic view showing the structure of the second embodiment of the present invention.
- Figure 5 is a schematic front view of a seat according to a second embodiment of the present invention.
- Figure 6 is a perspective view showing the appearance of a second embodiment of the present invention.
- a car seat forward tilting adjustment device includes a seat frame 1 , a back frame 2 and a knob 3 , a slide mechanism 4 connected to the floor of the compartment, and a slide mechanism 4 A fixed rail 41 and a slide rail 42 are included.
- the slide rail 42, the knob 3, the seat frame 1 and the back frame 2 are collectively constructed as a four-bar linkage.
- the handle 3 and the seat frame 1 , the seat frame 1 and the back frame 2 , the back frame 2 and the slide 42 , the slide 42 and the handle 3 are respectively connected by a hinge; a locking mechanism including a slide lock 5 and a slide rail
- the lock 5 is composed of a spring pin or a resilient clip or other mechanism that is both convenient for locking and easy to release.
- One end is connected to the lower end of the back frame 2, and the other end is releasably connected to the fixed rail 41 connected to the floor of the car.
- the rail lock 5 is in an unlocked state, and the slide rail 42 is obtained.
- the longitudinal freedom can be moved forward or backward.
- a mounting plate is connected to the seat frame 1 and the seat frame 1 is welded by a circular tube.
- a limiting rod 6 protruding upward is connected to the front end of the fixed rail 41.
- the top of the limiting rod 6 is a steel tube forming a curved arch structure, and the curved arch structure is in contact with the front lower bottom of the basin skeleton 1 to form a seat.
- a limit mechanism that moves forward to the foremost position.
- the slide rail 42 is combined with the fixed rail 41 and the slide rail 42 is at the rear end position of the fixed rail 41, it is in a normal use state, also called a rear limit position, and the locking mechanism is at this time.
- Locking the backrest frame 2 is folded forward toward the seat frame 1 , and the slide rail 42 and the fixed rail 41 are opened and the slide rail 42 is at the front end position of the fixed rail 41 to provide the rear passengers into the use state, also called the front limit.
- Position at this time the locking mechanism is released, as shown in Figure 2.
- the four-bar linkage mechanism acts, and the device rotates from the rear limit position to the front limit position, at which time the device is integrally rotated around the hinge joint of the slide rail 42 and the knob 3, and the seat is rotated.
- the rear space is enlarged to allow the rear passengers to get on and off.
- the seat frame 1 is separated from the slide rail 42 so that the seat can move longitudinally forward, generating an additional distance. Make more room for the entry and exit of the rear row.
- Embodiment 2 At the hinge portion where the seat frame 1 and the back frame 2 are connected, a torsion spring 8 is provided.
- the torsion spring 8 has a torsion arm fixed to the seat frame 1 and the other twisted arm is fixed to the back frame 2.
- the torsion spring 8 is provided on the rotating shaft of the seat back 1 and is adjusted in the seat back When the return assist is provided, the backrest is easily operated, and the rotating shaft is also the hinge shaft.
- the rest of the structure is the same as in Embodiment 1. See Figures 4, 5 and 6.
- Embodiment 3 At the hinge connection of the seat frame 1 and the slide rail 42, a coil spring 7 is provided, the coil spring 7 is a variable-stiffness plane scroll spring, and the outermost end of the variable-stiffness plane scroll spring has a rigidity. Lower buffer segment.
- the planar scroll spring is mounted in such a manner that the outer end is fixed and the inner end is rotated. The rest of the structure is the same as in Embodiment 1. See Figure 1.
- Embodiment 4 At the hinge connection between the back frame 2 and the slide rail 42, a coil spring 7 is provided, and the coil spring 7 is a flat scroll spring.
- the plane scroll spring is mounted in such a manner that the outer end is fixed and the inner end is rotated.
- the coil spring 7 provides assistance when the seat is rotated up, making the operation easy.
- the outer end is fixed and the inner end is swiveled to greatly increase the torque of the coil spring.
- the rest of the structure is the same as in Embodiment 1.
- Embodiment 5 At the hinge connection of the back frame 2 and the slide rail 42 and at the hinge connection of the seat frame 1 and the slide rail 42, a coil spring 7 is provided, and the coil spring 7 is a flat scroll spring of variable rigidity.
- the outermost end of the rigid planar scroll spring has a relatively low stiffness buffer section.
- the planar scroll spring is mounted in such a manner that the outer end is fixed and the inner end is rotated. The rest of the structure is the same as in Embodiment 1.
- the car seat forward tilting adjusting device of the invention has a seat forward folding and an overall forward movement to expand the rear row personnel entering and leaving space, and the coil spring and the torsion spring respectively set the seat lifting and the seat back flattening respectively.
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Abstract
一种汽车座椅前倾折叠调节装置，包括座盆骨架（1）、靠背骨架（2）和旋柄（3），本装置还设有锁定机构和连接在车厢地板上的滑轨机构（4），滑轨机构（4）包括固定轨道（41）和滑轨（42），滑轨（42）、旋柄（3）、座盆骨架（1）以及靠背骨架（2）共同构成为一个四连杆机构，旋柄（3）与座盆骨架（1）、座盆骨架（1）与靠背骨架（2）、靠背骨架（2）与滑轨（42）、滑轨（42）与旋柄（3）分别通过铰链连接。该汽车座椅前倾折叠调节装置使座椅可前倾折叠和前移以释放尽量大的空间供后排人员出入，且该装置操作省力。
Description
本发明属于汽车座椅结构技术领域，具体涉及一种可前倾折叠和前移的座椅装置。
现有技术的汽车座椅快进入系统主要是通过拉索解锁靠背，并使用靠背的翻转角度来驱动解锁滑轨。这种结构所能提供的后排人员进出的空间有限，不便于上下车，且装配工艺复杂，所能腾出的空间极为有限，综合效果不佳。
现有技术也有改进的汽车座椅易进入结构，例如中国专利申请号：201110274054.3，名称为“易于进入的汽车座椅的座椅靠背释放系统”的中国专利申请，公开了一种汽车座椅的快进入结构，该申请的座椅靠背运动控制器安装在车辆内的车辆座椅上，车辆座椅包括座椅底座和座椅靠背，座椅靠背被设置为能够相对于座椅底座在竖直使用位置和前倾易于进入的位置之间进行枢轴旋转运动。该专利申请的结构仅仅是座椅靠背相对于底座转动，也就是说，其对于座椅上部的空间释放是有一定意义的，但其对于座椅下半部依旧没有变化，下半部与释放空间易于进入无关，而且该申请的结构特复杂、操作费力，实施的综合意义不大。
发明内容：
本发明的目的是，克服现有技术存在的汽车座椅的快进入系统结构复杂、笨重且效果不大的缺陷，提供一种座椅装置，该装置可前倾折叠和前移以获得释放尽量大的空间供后排人员出入，且该装置操作省力。
本发明的目的是通过以下技术方案实现的。
一种汽车座椅前倾折叠调节装置，包括座盆骨架、靠背骨架和旋柄，其特征是，本装置还设有连接在车厢地板上的滑轨机构，滑轨机构包括固定轨道和滑轨；滑轨、旋柄、座盆骨架以及靠背骨架共同构成为一个四连杆机构，旋柄与座盆骨架、座盆骨架与靠背骨架、靠背骨架与滑轨、滑轨与旋柄分别通过铰链连接；本装置设有锁定机构。
当靠背骨架与座盆骨架张开，滑轨与固定轨道并合且滑轨处于固定导轨后端位置时，是为装置处于正常使用状态，也称后极限位置，此时锁定机构锁定；当靠背骨架向座盆骨架前倾折叠，滑轨与固定轨道张开且滑轨处于固定导轨前端位置时，是为提供后排乘客快进入使用状态，也称前极限位置，此时锁定机构松开。
当旋柄逆时针旋转，四连杆机构动作，装置从后极限位置转动并借助于人工推动转换到前极限位置，此时装置整体围绕滑轨与旋柄的铰链连接处被抬起，座椅后方的空间扩大，便于后排乘客上下车。
通过滑轨锁和四连杆的结构设计，实现当滑轨锁处于解锁状态时，使座盆骨架跟滑轨分离，从而座椅可以纵向向前移动，产生附加的距离，腾出更大的空间满足后排人员的进出。
优选方案，所述锁定机构包括滑轨锁，滑轨锁有一端连接在靠背骨架的下端，另一端可松脱地与连接在车厢地板上的固定轨道连接。当座椅折叠时，滑轨锁达到解锁状态，滑轨获得纵向自由度。
优选方案，在所述的所有铰链连接处，其中至少有一处设置有卷簧。卷簧设在座椅折叠机构的某个旋转点上，给座椅旋转抬升时提供助力，使操作轻松。
优选方案，所述卷簧设置在靠背骨架与滑轨的铰链连接处；卷簧为平面涡卷弹簧，本平面涡卷弹簧的安装方式为外端固定，内端回转。根据理论推导运算得知，外端固定内端回转的平面涡卷弹簧的刚度比内端固定外端回转的平面涡卷弹簧的刚度大25％，或者说，同样的角变形量其扭矩要大25％。
优选方案，所述平面涡卷弹簧为变刚度的平面涡卷弹簧，其最外端有一段刚度较低的缓冲段。在锁定机构刚解除时，由于卷簧扭矩的突然释放以及操作者的叠加施力，使相关转动件之间产生角加速度突变造成碰撞，设置卷簧的刚度较低的缓冲段可起到减轻碰撞的缓冲作用。
优选方案，在座盆骨架与靠背骨架的连接处设置有扭簧，扭簧有一个扭臂固定在座盆骨架上，另一个扭臂固定在靠背骨架上。扭簧设在座椅靠背的旋转轴上，在座椅靠背调节时提供回复助力，使靠背回复操作轻松。
优选方案，在座盆骨架中连接有若干安装板，座盆骨架采用圆管焊接装配方式。这种结构可以提高座盆骨架的强度及稳定性。
优选方案，在固定轨道的前端连接有往上突起的限位杆，限位杆与座盆骨架前下底部相抵触为构成座椅前移到最前方位置的限位机构。
本发明的有益效果是：
1、座椅前倾折叠扩展后排人员进出空间；
2、当座椅通过前倾折叠运动到最后位置时，滑轨与固定轨道分离使座椅可以整体向前移动以拓展更大的空间；
3、设置卷簧使折叠和座椅的抬起更轻松；
4、设置扭簧使靠背回复更轻松；
5、前倾折叠机构的四连杆结构，转动轻松、快速；
6、四连杆结构降低造价，节省装配时间；
7、卷簧有缓冲段结构，避免前倾初始阶段的撞击现象；
8、卷簧外端固定、内端回转，提升扭矩；
9、设有限位杆限制座椅前倾折叠的前方极限位置；
10、通过安装板和座盆骨架采用圆管焊接装配方式提高强度及稳
定性。
附图1是本发明第一种实施例的结构总装示意图；
附图2为本发明第一种实施例的座椅前倾示意图；
附图3为本发明第一种实施例的外观立体示意图；
附图4是本发明第二种实施例的结构总装示意图；
附图5为本发明第二种实施例的座椅前倾示意图；
附图6为本发明第二种实施例的外观立体示意图。
图中，座盆骨架1；靠背骨架2；旋柄3；滑轨机构4；固定轨道41；滑轨42；滑轨锁5；限位杆6；卷簧7；扭簧8。
下面结合附图和具体实施方案对本发明作进一步描述。
实施例1：如图1所示，一种汽车座椅前倾折叠调节装置，包括座盆骨架1、靠背骨架2和旋柄3，连接在车厢地板上的滑轨机构4，滑轨机构4包括固定轨道41和滑轨42。滑轨42、旋柄3、座盆骨架1以及靠背骨架2共同构成为一个四连杆机构。旋柄3与座盆骨架1、座盆骨架1与靠背骨架2、靠背骨架2与滑轨42、滑轨42与旋柄3分别通过铰链连接；有一锁定机构，包括滑轨锁5，滑轨锁5由弹簧插销或弹性夹子或其他既方便锁紧又方便解脱的机构构成，其有一端连接在靠背骨架2的下端，另一端可松脱地与连接在车厢地板上的固定轨道41连接。当座椅折叠时，滑轨锁5处于解锁状态，滑轨42获
得纵向自由度可以往前或往后移动。在座盆骨架1中连接有安装板，座盆骨架1采用圆管焊接装配方式。在固定轨道41的前端连接有往上突起的限位杆6，限位杆6的顶部为钢管构成弯弓状结构，该弯弓状结构与座盆骨架1前下底部相抵触以构成座椅前移到最前方位置的限位机构。
当靠背骨架2与座盆骨架1张开，滑轨42与固定轨道41并合且滑轨42处于固定导轨41后端位置时，是为正常使用状态，也称后极限位置，此时锁定机构锁定；靠背骨架2向座盆骨架1前倾折叠，滑轨42与固定轨道41张开且滑轨42处于固定导轨41前端位置时，是为提供后排乘客快进入使用状态，也称前极限位置，此时锁定机构松开，如图2所示。
当旋柄3逆时针旋转，四连杆机构动作，装置从后极限位置转动转换到前极限位置，此时装置整体地围绕滑轨42与旋柄3的铰链连接处被旋转抬起，座椅后方的空间得到扩大，便于后排乘客上下车。
通过滑轨锁5和四连杆的结构设计，来实现当滑轨锁5处于解锁状态时，使座盆骨架1跟滑轨42分离，从而座椅可以纵向向前移动，产生附加的距离，腾出更大的空间满足后排人员的进出。
本实施例的外观立体示意图参见图3。
实施例2：在座盆骨架1与靠背骨架2连接的铰链部位，设置有扭簧8，扭簧8有一个扭臂固定在座盆骨架1上，另一个扭臂固定在靠背骨架2上。扭簧8设在座椅靠背1的旋转轴上，在座椅靠背调节
时提供回复助力，使靠背回复操作轻松，所述旋转轴也即铰链轴。其余结构同实施例1。参见图4、图5和图6。
实施例3：在座盆骨架1与滑轨42的铰链连接处，设置有一个卷簧7，卷簧7为变刚度的平面涡卷弹簧，变刚度的平面涡卷弹簧的最外端有一段刚度较低的缓冲段。本平面涡卷弹簧的安装方式为外端固定，内端回转。其余结构同实施例1。参见图1。
实施例4：在靠背骨架2与滑轨42的铰链连接处，设置有卷簧7，卷簧7为平面涡卷弹簧，本平面涡卷弹簧的安装方式为外端固定，内端回转。卷簧7给座椅旋转抬升时提供助力，使操作轻松。外端固定，内端回转的安装方式极大地提升卷簧的扭矩。其余结构同实施例1。
实施例5：在靠背骨架2与滑轨42的铰链连接处以及在座盆骨架1与滑轨42的铰链连接处，各设置有卷簧7，卷簧7为变刚度的平面涡卷弹簧，变刚度的平面涡卷弹簧的最外端有一段刚度较低的缓冲段。本平面涡卷弹簧的安装方式为外端固定，内端回转。其余结构同实施例1。
本发明汽车座椅前倾折叠调节装置，具有座椅前倾折叠及整体前移以扩展后排人员进出空间，设置卷簧和扭簧分别使座椅的抬起和座椅靠背的放平更轻松的优点。本领域的技术人员如果对上述发明内容作简单的修改或替换，这样的改变不能认为是脱离本发明的权利要求保护的范围，所有这样对所属领域的技术人员显而易见的修改将包括
在本发明的权利要求的范围之内。
Claims (10)
- 一种汽车座椅前倾折叠调节装置，包括座盆骨架、靠背骨架和旋柄，其特征是，本装置还设有连接在车厢地板上的滑轨机构，滑轨机构包括固定轨道和滑轨；滑轨、旋柄、座盆骨架以及靠背骨架共同构成为一个四连杆机构，旋柄与座盆骨架、座盆骨架与靠背骨架、靠背骨架与滑轨、滑轨与旋柄分别通过铰链连接；本装置设有锁定机构。
- 根据权利要求1所述的汽车座椅前倾折叠调节装置，其特征是，所述锁定机构包括滑轨锁，滑轨锁有一端连接在靠背骨架的下端，另一端可松脱地与连接在车厢地板上的固定轨道连接。
- 根据权利要求1或2所述的汽车座椅前倾折叠调节装置，其特征是，在所述的所有铰链连接处，其中至少有一处设置有卷簧。
- 根据权利要求3所述的汽车座椅前倾折叠调节装置，其特征是，所述卷簧设置在靠背骨架与滑轨的铰链连接处；卷簧为平面涡卷弹簧，本平面涡卷弹簧的安装方式为外端固定，内端回转。
- 根据权利要求4所述的汽车座椅前倾折叠调节装置，其特征是，所述平面涡卷弹簧为变刚度的平面涡卷弹簧，其最外端有一段刚度较低的缓冲段。
- 根据权利要求3所述的汽车座椅前倾折叠调节装置，其特征是，在座盆骨架与靠背骨架的连接处设置有扭簧，扭簧有一个扭臂固定在座盆骨架上，另一个扭臂固定在靠背骨架上。
- 根据权利要求5所述的汽车座椅前倾折叠调节装置，其特征是，在座盆骨架中连接有若干安装板，座盆骨架采用圆管焊接装配方式。
- 根据权利要求6所述的汽车座椅前倾折叠调节装置，其特征是，在座盆骨架中连接有若干安装板，座盆骨架采用圆管焊接装配方式。
- 根据权利要求6所述的汽车座椅前倾折叠调节装置，其特征是，在固定轨道的前端连接有往上突起的限位杆，限位杆的顶部为与座盆骨架前下底部相抵触以构成座椅前倾折叠到最前方位置的限位机构。
- 根据权利要求9所述的汽车座椅前倾折叠调节装置，其特征是，在固定轨道的前端连接有往上突起的限位杆，限位杆与座盆骨架前下底部相抵触为构成座椅前移到最前方位置的限位机构。
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