WO2020192031A1 - 一种棘爪及应用该棘爪的整体式车用座椅靠背锁 - Google Patents

一种棘爪及应用该棘爪的整体式车用座椅靠背锁 Download PDF

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Publication number
WO2020192031A1
WO2020192031A1 PCT/CN2019/105263 CN2019105263W WO2020192031A1 WO 2020192031 A1 WO2020192031 A1 WO 2020192031A1 CN 2019105263 W CN2019105263 W CN 2019105263W WO 2020192031 A1 WO2020192031 A1 WO 2020192031A1
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WIPO (PCT)
Prior art keywords
lock
pawl
handle
compression spring
assembly
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PCT/CN2019/105263
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English (en)
French (fr)
Inventor
陈照兵
Original Assignee
上海明庆塑胶有限公司
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Publication date
Application filed by 上海明庆塑胶有限公司 filed Critical 上海明庆塑胶有限公司
Publication of WO2020192031A1 publication Critical patent/WO2020192031A1/zh

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • 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
    • B60N2/433—Safety locks for back-rests, e.g. with locking bars activated by inertia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for

Definitions

  • the utility model relates to the technical field of automobile spare parts, in particular to a pawl and an integral vehicle seat back lock using the pawl.
  • the car seat back lock is a locking and unlocking mechanism installed on the rear seat of the car, and is fixed and folded on the rear seat. It has the function of fixing the seat and protecting the safety of passengers.
  • the original car seat back lock is made of several sheet metal parts, which has the defects of large opening force and heavy overall lock in use.
  • the lock body and the unlock button of the traditional car seat back lock are installed separately, and the lock must be unlocked through the exposed switch mechanism of the pull rod. If the pull rod is deformed, the lock may not be opened smoothly, which is very inconvenient to use. Will take up more car body space.
  • the present invention provides a pawl and an integral vehicle seat back lock using the pawl to solve the above-mentioned problems in the background art.
  • a pawl includes a metal part and a plastic part covering the outside of the metal part.
  • a fixing hole is opened in the center of the metal part, and an engagement arm for mating with a ratchet is extended from the metal part.
  • the edge extends toward the first direction with a clamping arm used for matching with the handle, and extends toward a second direction with a support arm used for matching with the shock-absorbing block.
  • the engaging arm is triangular, and its two sides are convex arc shapes.
  • a clamping slot is provided on the clamping arm.
  • the clamping groove is a U-shaped clamping groove.
  • An integral vehicle seat back lock includes a lock shell, a handle, a warning plate assembly, a pawl, a ratchet, a shock absorption assembly, and a compression spring assembly.
  • the handle, the warning plate assembly, the compression spring assembly and the shock absorption assembly are all Set in the lock shell,
  • the handle is connected to the warning plate assembly through a warning plate torsion spring clamped in the lock housing, the lower end of the handle is connected with the clamping arm of the pawl, and the engagement arm of the pawl is engaged or separated from the ratchet;
  • a ratchet torsion spring is fixed on the ratchet wheel, one torsion arm of the ratchet torsion spring is fixed on the lock housing, and the other torsion arm is fixed on the ratchet wheel, and the ratchet wheel is located on the right side of the shock absorption assembly;
  • the damping component is located below the compression spring component, and one end of the compression spring component rests on the lock shell; the handle is linked with the pawl.
  • the handle When in the unlocked state, the handle is in the unlocked position, and the end of the support arm of the pawl It is stuck between the compression spring assembly and the shock-absorbing assembly; when the integrated vehicle seat back lock is locked, the shock-absorbing assembly moves to the left under the push of the ratchet, so that the pawl rotates counterclockwise to engage with the ratchet , The handle is in the locked position.
  • the lock housing includes a lock bottom, a lock cover buckled with the lock bottom, and the upper part of the lock bottom is provided with a first groove for arranging a handle and a handle fixing hole, and a first groove for arranging a warning plate assembly.
  • the lower part of the handle is provided with a first fixed shaft, a second fixed shaft and a torsion spring hole
  • the first fixed shaft is sleeved with a handle torsion spring
  • the torsion arm of the handle torsion spring is arranged on the lock housing
  • the second fixed shaft is clamped in the clamping groove of the pawl, and a torsion arm of the warning plate torsion spring is clamped in the torsion spring hole;
  • the warning board assembly includes a warning board, a warning board insert arranged on the upper end of the warning board, the warning board is clamped in the lock shell, and the lower end of the warning board is provided with another torsion arm for twisting the warning board Slot through.
  • the compression spring assembly includes an oblique block, a compression spring seat fixed on the oblique block, and a compression spring arranged in the compression spring seat, and the upper end of the compression spring abuts on the lock shell.
  • the shock-absorbing assembly includes a shock-absorbing block and a shock-absorbing compression spring, the shock-absorbing block is located below the compression spring seat, and the shock-absorbing compression spring is fixed on the shock-absorbing block and its end is pressed against the inner side wall of the lock shell on.
  • the beneficial effects of the utility model are as follows: 1.
  • the pawl of the present application is composed of a metal part and a plastic part, which can reduce the weight of the lock body and make the operation feel comfortable. 2.
  • Integral lock body is adopted, which reduces the traditional middle pull rod exposed conversion mechanism, which makes the operation and installation more convenient and reliable.
  • Figure 1 is a schematic diagram of the structure of the utility model in a locked state.
  • Figure 2 is a schematic structural diagram of the present utility model in an unlocked state.
  • Figure 3 is an exploded view of the utility model.
  • Figure 4 is a front view of the utility model.
  • Figure 5 is a structural diagram of the lock bottom.
  • Figure 6 is a schematic view of the structure of the pawl.
  • 1 is the metal part
  • 2 is the plastic part
  • 3 is the fixing hole
  • 4 is the clamping arm
  • 5 is the ratchet
  • 6 is the support arm
  • 7 is the engagement arm
  • 8 is the clamping groove
  • 9 is the lock shell
  • 10 is the handle
  • 11 is the warning plate assembly
  • 12 is the pawl
  • 13 is the shock absorption assembly
  • 14 is the compression spring assembly
  • 15 is the warning plate torsion spring
  • 16 is the ratchet torsion spring
  • 17 is the lock bottom
  • 18 is the lock cover
  • 19 is the first The groove
  • A is the handle fixing hole
  • 20 is the second groove
  • 21 is the third groove
  • 22 is the fourth groove
  • 23 is the first fixed shaft
  • 24 is the second fixed shaft
  • 25 is the torsion spring hole
  • 26 is the handle torsion spring
  • 27 is the warning plate
  • 28 is the warning plate insert
  • 29 is the slot
  • 30 is the inclined block
  • 31 is the compression spring seat
  • 32
  • the embodiment of the present invention provides a pawl and a seat lock using the pawl.
  • the pawl 12 of the present application is composed of two parts, including a metal part 1 and a plastic part 2.
  • the metal part 1 can be made of iron and other materials, and a fixing hole 3 is opened in the center of the metal part 1.
  • the fixing hole 3 is used for piercing fasteners such as rivets to fix the pawl 12 on the seat lock.
  • Inside the lock shell 9. The metal part 1 extends outwards with an engaging arm 7 capable of engaging and separating with the end of the ratchet wheel 5.
  • the engaging arm 7 is a triangular protrusion, and both sides of the engaging arm are convex. arc.
  • the plastic part 2 is wrapped on the outer side of the metal part 1, and the edge of the plastic part 2 extends out of the clamping arm 4 in the first direction, and the support arm 6 for matching with the shock-absorbing block extends in the second direction.
  • a clamping slot 8 is provided on the clamping arm 4.
  • the clamping slot 8 is a U-shaped clamping slot.
  • the vehicle seat lock of the present application includes a lock housing 9, a handle 10, a warning plate assembly 11, a pawl 12, a ratchet wheel 5, a shock absorption assembly 13, and a compression spring assembly 14.
  • the handle 10, the warning plate assembly 11, and the compression spring assembly Both 14 and the shock absorption assembly 13 are arranged in the lock housing 9.
  • the lock housing 9 includes a lock bottom 17 and a lock cover 18 buckled with the lock bottom 17.
  • the upper part of the lock bottom 17 is provided with a first groove 19 for the handle 10 and a handle fixing hole A, and a second groove 20 for the warning plate assembly 11 is provided, and the lower part of the lock bottom 17 is provided with a shock absorber.
  • the third groove 21 of the assembly 13 is used to place the fourth groove 22 of the compression spring assembly 14.
  • the handle 10 is clamped in the first groove 19 of the lock housing.
  • the lower part of the handle 10 is provided with a first fixed shaft 23, a second fixed shaft 24 and a torsion spring hole 25.
  • the first fixed shaft 23 is sleeved with The handle torsion spring 26 and the torsion arm of the handle torsion spring 26 are locked in the lock housing 9.
  • the handle 10 is connected to the warning plate assembly 11 through a warning plate torsion spring 15 clamped in the lock shell.
  • One torsion arm of the warning plate torsion spring 15 is stuck in the torsion spring hole 25 of the handle, and the other torsion arm is stuck in the torsion spring hole 25 of the handle.
  • the warning board assembly 11 includes a warning board 27 and a warning board insert 28 arranged on the upper end of the warning board 27.
  • the warning plate 27 is clamped in the second groove 20 of the lock shell.
  • the lower end of the warning plate 27 is provided with a slot 29 through which the other torsion arm of the warning plate torsion spring 15 passes.
  • the handle 10 forms a linkage between the warning plate torsion spring 15 and the warning plate 27. When the handle 10 is pressed, the handle 10 drives the warning plate 27 through the warning plate torsion spring 15 to move.
  • the second fixed shaft 24 of the handle is clamped in the clamping groove 8 of the pawl, so as to be connected with the clamping arm 4 of the pawl.
  • the supporting arm 6 of the pawl is engaged with or separated from the ratchet 5.
  • a ratchet torsion spring 16 is fixed on the ratchet wheel 5.
  • One torsion arm of the ratchet torsion spring 16 is fixed on the lock housing 9, and the other torsion arm is fixed on the ratchet wheel 5.
  • the ratchet wheel 5 is located on the right side of the shock absorption assembly 13. side.
  • the shock absorption component 13 is located below the compression spring component 14.
  • the shock-absorbing assembly 13 includes a shock-absorbing block 33 and a shock-absorbing compression spring 34.
  • the shock-absorbing block 33 is located below the compression spring seat 31.
  • the shock-absorbing compression spring 34 is fixed on the shock-absorbing block 33 and its end is pressed against the lock.
  • the compression spring assembly 14 includes an oblique block 30, a compression spring seat 31 fixed on the oblique block 30, and a compression spring 32 arranged in the compression spring seat 31, the upper end of the compression spring 32 abuts on the lock housing 9 .
  • the ratchet wheel 5 When the seat lock is in the unlocked state, the end of the support arm 6 of the pawl is just stuck between the compression spring seat 31 and the shock-absorbing block 33.
  • the ratchet wheel 5 When the seat lock needs to be locked, the ratchet wheel 5 is rotated counterclockwise by external pressure (that is, the ratchet wheel is pressed by the lock on the seat to rotate the ratchet wheel). After the ratchet wheel 5 contacts the shock-absorbing block 33, the shock-absorbing block 33 will Pushed by the ratchet wheel 5, it moves to the left, and the damping compression spring 34 is compressed, so that the pawl 12 will return to the position (that is, rotate counterclockwise), the pawl 12 meshes with the ratchet wheel 5, and the seat lock is locked.
  • the handle 10 drives the warning plate 27 to move upward through the warning plate torsion spring 15, and the handle 10 will drive the pawl 12 to rotate clockwise.
  • the pawl 12 its supporting arm
  • the engagement part between 6 and the ratchet wheel 5 is disengaged, and the end of the support arm 6 is pressed against the compression spring seat 31, so that the compression spring 32 in the compression spring seat 31 is compressed, the compression spring seat 31 moves upward, and the end of the support arm 6
  • the part is stuck between the compression spring seat 31 and the shock-absorbing block 33, the shock-absorbing block 33 is returned, and the ratchet wheel 5 is returned to unlock the seat lock.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

一种棘爪及采用该棘爪的整体式车用座椅靠背锁，棘爪（12）包括金属部分（1）和塑料部分（2），塑料部分（2）包覆在金属部分（1）的外侧，金属部分（1）的中央开设有一个固定孔（3），金属部分（1）上延出用于与棘轮（5）配合的啮合臂（7），塑料部分（2）的边缘朝第一方向延伸出用于与手柄（10）配合卡接臂（4）、朝第二方向延伸出用于与减震块（33）配合的支撑臂（6）。整体式车用座椅靠背锁锁体重量轻，使操作和安装更方便、可靠。

Description

一种棘爪及应用该棘爪的整体式车用座椅靠背锁 技术领域
本实用新型涉及汽车零配件技术领域，尤其涉及一种棘爪及应用该棘爪的整体式车用座椅靠背锁。
背景技术
汽车车用座椅靠背锁是一种安装于汽车后排座椅的锁止和开启机构，并于后排座椅的固定和折叠，具有固定座椅、保护乘客安全的功能。
原车用座椅靠背锁由几个钣金件作成，在使用上有开启力大，整体锁重的缺陷。且传统车用座椅靠背锁的锁体和解锁按钮是分开安装的，需要通过拉杆外露转换机构来开锁，若拉杆变形，则锁可能无法顺利开启，使用非常不便，且这种锁体结构也会占用较多的车体空间。
发明内容
有鉴于此，本实用新型提供了一种棘爪及应用该棘爪的整体式车用座椅靠背锁，用以解决上述背景技术中存在的问题。
一种棘爪，包括金属部分、包覆在金属部分外侧的塑料部分，所述金属部分的中央开设有一个固定孔，金属部分上延出用于与棘轮配合的啮合臂，所述塑料部分的边缘朝第一方向延伸出用于与手柄配合的卡接臂、朝第二方向延伸出用于与减震块配合的支撑臂。
优选地，所述啮合臂为三角形，且其两侧边呈外凸的弧形。
优选地，所述卡接臂上设置有一个卡接槽。
优选地，所述卡接槽为U形卡槽。
一种整体式车用座椅靠背锁，包括锁壳、手柄、警示板组件、棘爪、棘轮、减震组件和压簧组件，所述手柄、警示板组件、压簧组件和减震组件均设置在锁壳内，
所述手柄通过卡设在锁壳内的警示板扭簧与警示板组件相连接，手柄的下端部与所述棘爪的卡接臂相连接，棘爪的啮合臂与棘轮相啮合或分离；
所述棘轮上固定有棘轮扭簧，棘轮扭簧的一个扭臂固定在所述锁壳上、另一扭臂固定在棘轮上，所述棘轮位于减震组件的右侧；
所述减震组件位于压簧组件的下方，压簧组件的一端部顶在锁壳上；所述手柄与棘爪联动，处于解锁状态时，手柄处于解锁位置，棘爪的支撑臂的端部卡在压簧组件和减震组件之间；锁止整体式车用座椅靠背锁时，减震组件在棘轮的推动下向左移动，从而使所述棘爪逆时针转动以与棘轮相啮合，手柄处于锁止位置。
优选地，所述锁壳包括锁底、与锁底相扣合的锁盖，所述锁底的上部设置有用以设置手柄的第一凹槽和手柄固定孔、用以设置警示板组件的第二凹槽，锁底的下部设置有用以放置减震组件的第三凹槽、用以放置压簧组件的第四凹槽。
优选地，所述手柄的下部设置有第一固定轴、第二固定轴以及扭簧孔，所述第一固定轴上套设有手柄扭簧，手柄扭簧的扭臂设置在所述锁壳内，所述第二固定轴卡在所述棘爪的卡接槽内，警示板扭簧的一个扭臂卡在所述扭簧孔内；
所述警示板组件包括警示板、设置在警示板上端的警示板嵌件，所述警示板卡在锁壳内，警示板的下端部开设有一个用以使警示板扭簧的另一扭臂穿过的槽孔。
优选地，所述压簧组件包括斜块、固定在斜块上的压簧座、以及设置在压簧座内的压簧，所述压簧的上端部顶在锁壳上。
优选地，减震组件包括减震块、减震压簧，所述减震块位于压簧座的下方，减震压簧固定在减震块上且其端部顶压在锁壳的内侧壁上。
本实用新型的有益效果是：1.本申请的棘爪由金属部分和塑料部分构成，可以减轻锁体重量，使操作手感舒适。2.采用整体式锁体，减少了传统中间的拉杆外露转换机构，使操作和安装更方便、可靠。
附图说明
为了更清楚地说明本实用新型实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1是本实用新型锁定状态的结构示意图。
图2是本实用新型解锁状态的结构示意图。
图3是本实用新型的爆炸图。
图4是本实用新型的正视图。
图5是锁底的结构示意图。
图6是棘爪的结构示意图。
图中标号的含义为：
1为金属部分，2为塑料部分，3为固定孔，4为卡接臂，5为棘轮，6为支撑臂，7为啮合臂，8为卡接槽，9为锁壳，10为手柄，11为警示板组件，12为棘爪，13为减震组件，14为压簧组件，15为警示板扭簧，16为棘轮扭簧，17为锁底，18为锁盖，19为第一凹槽，A为手柄固定孔，20为第二凹槽，21为第三凹槽，22为第四凹槽，23为第一固定轴，24为第二固定轴，25为扭簧孔，26为手柄扭簧，27为警示板，28为警示板嵌件，29为槽孔,30为斜块，31为压簧座，32为压簧，33为减震块，34为减震压簧。
具体实施方式
为了更好的理解本实用新型的技术方案，下面结合附图对本实用新型实施例进行详细描述。
应当明确，所描述的实施例仅仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
下面通过具体的实施例并结合附图对本申请做进一步的详细描述。
在本申请的描述中，除非另有明确的规定和限定，术语“第一”、“第二”仅用于描述的目的，而不能理解为指示或暗示相对重要性；除非另有规定或说明，术语“连接”、“固定”等均应做广 义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。
本说明书的描述中，需要理解的是，本申请实施例所描述的“上”、“下”、“左”、“右”等方位词是以附图所示的角度来进行描述的，不应理解为对本申请实施例的限定。此外，在上下文中，还需要理解的是，当提到一个元件连接在另一个元件“上”或者“下”时，其不仅能够直接连接在另一个元件“上”或者“下”，也可以通过中间元件间接连接在另一个元件“上”或者“下”。
参照图1-图6，本实用新型实施例给出一种棘爪及应用该棘爪的车座锁。
本申请的棘爪12由两部分组成，包括金属部分1和塑料部分2。
所述金属部分1具体可采用铁等材质制成，金属部分1的中央开设有一个固定孔3，该固定孔3用于穿设铆钉等紧固件，以将棘爪12固定在车座锁的锁壳9内。金属部分1上向外延伸出一个能够与棘轮5的端部啮合和分离的啮合臂7，本实施例中，所述啮合臂7为三角形凸起，且啮合臂的两侧边呈外凸的弧形。
所述塑料部分2包覆在金属部分1的外侧，塑料部分2的边缘朝第一方向延伸出卡接臂4、朝第二方向延伸出用于与减震块配合的支撑臂6。所述卡接臂4上设置有一个卡接槽8。本实施例中， 所述卡接槽8为U形卡槽。
本申请的车座锁，包括锁壳9、手柄10、警示板组件11、棘爪12、棘轮5、减震组件13和压簧组件14，所述手柄10、警示板组件11、压簧组件14和减震组件13均设置在锁壳9内。
所述锁壳9包括锁底17、与锁底17相扣合的锁盖18。所述锁底17的上部设置有用以设置手柄10的第一凹槽19和手柄固定孔A、用以设置警示板组件11的第二凹槽20，锁底17的下部设置有用以放置减震组件13的第三凹槽21、用以放置压簧组件14的第四凹槽22。
所述手柄10卡在锁壳的第一凹槽19内，手柄10的下部设置有第一固定轴23、第二固定轴24以及扭簧孔25，所述第一固定轴23上套设有手柄扭簧26，手柄扭簧26的扭臂卡在锁壳9内。
所述手柄10通过卡设在锁壳内的警示板扭簧15与警示板组件11相连接，警示板扭簧15的一个扭臂卡在手柄的扭簧孔25内、另一个扭臂卡在警示板组件11上。
所述警示板组件11包括警示板27、设置在警示板27上端的警示板嵌件28。所述警示板27卡在锁壳的第二凹槽20内，警示板27的下端部开设有一个用以使警示板扭簧15的另一扭臂穿过的槽孔29。手柄10通过警示板扭簧15与警示板27之间形成联动，当按动手柄10时，手柄10通过警示板扭簧15带动警示板27移动。
所述手柄的第二固定轴24卡在所述棘爪的卡接槽8内，从而与棘爪的卡接臂4相连接。所述棘爪的支撑臂6与棘轮5相啮合或分离。
所述棘轮5上固定有棘轮扭簧16，棘轮扭簧16的一个扭臂固定在所述锁壳9上、另一扭臂固定在棘轮5上，所述棘轮5位于减震组件13的右侧。
所述减震组件13位于压簧组件14的下方。减震组件13包括减震 块33、减震压簧34，所述减震块33位于压簧座31的下方，减震压簧34固定在减震块33上且其端部顶压在锁壳9的内侧壁上。
所述压簧组件14包括斜块30、固定在斜块30上的压簧座31、以及设置在压簧座31内的压簧32，所述压簧32的上端部顶在锁壳9上。
当车座锁处于解锁状态时，棘爪的支撑臂6的端部恰好卡在压簧座31和减震块33之间。当需锁定车座锁时，通过外部压力使棘轮5逆时针转动(即可通过车座上的锁扣按压棘轮，使棘轮转动)，棘轮5与减震块33接触后，减震块33会在棘轮5的推动下向左移动，减震压簧34压缩，这样棘爪12会回位(即逆时针转动)，棘爪12与棘轮5相啮合，车座锁锁定。
当需解锁车座锁时，扳动手柄10，手柄10通过警示板扭簧15带动警示板27向上移动，同时手柄10会带动棘爪12顺时针转动，棘爪12运动过程中，其支撑臂6与棘轮5之间的啮合部分脱开，支撑臂6的端部顶压着压簧座31，使压簧座31内的压簧32压缩，压簧座31向上移动，支撑臂6的端部卡在压簧座31和减震块33之间，减震块33回位，棘轮5回位，从而使车座锁解锁。
以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本实用新型保护的范围之内。

Claims (9)

  1. 一种棘爪，其特征在于，包括金属部分(1)、包覆在金属部分(1)外侧的塑料部分(2)，所述金属部分(1)的中央开设有一个固定孔(3)，金属部分(1)上延出用于与棘轮(5)配合的啮合臂(7)，所述塑料部分(2)的边缘朝第一方向延伸出用于与手柄配合卡接臂(4)、朝第二方向延伸出用于与减震块配合的支撑臂(6)。
  2. 根据权利要求1所述的棘爪，其特征在于，所述啮合臂(7)为三角形，且其两侧边呈外凸的弧形。
  3. 根据权利要求1所述的棘爪，其特征在于，所述卡接臂(4)上设置有一个卡接槽(8)。
  4. 根据权利要求3所述的棘爪，其特征在于，所述卡接槽(8)为U形卡槽。
  5. 一种整体式车用座椅靠背锁，其特征在于，包括锁壳(9)、手柄(10)、警示板组件(11)、棘爪(12)、棘轮(5)、减震组件(13)和压簧组件(14)，所述手柄(10)、警示板组件(11)、压簧组件(14)和减震组件(13)均设置在锁壳(9)内，
    所述手柄(10)通过卡设在锁壳(9)内的警示板扭簧(15)与警示板组件(11)相连接，手柄(10)的下端部与所述棘爪的卡接臂(4)相连接，棘爪的啮合臂(7)与棘轮(5)相啮合或分离；
    所述棘轮(5)上固定有棘轮扭簧(16)，棘轮扭簧(16)的一个扭臂固定在所述锁壳(9)上、另一扭臂固定在棘轮(5)上，所述棘轮(5)位于减震组件(13)的右侧；
    所述减震组件(13)位于压簧组件(14)的下方，压簧组件(14)的一端部顶在锁壳(9)上；所述手柄(10)与棘爪(12)联动，处于解锁 状态时，手柄(10)处于解锁位置，棘爪的支撑臂(6)的端部卡在压簧组件(14)和减震组件(13)之间；锁止整体式车用座椅靠背锁时，减震组件(13)在棘轮(5)的推动下向左移动，从而使所述棘爪(12)逆时针转动以与棘轮(5)相啮合，手柄(10)处于锁止位置。
  6. 根据权利要求1所述的整体式车用座椅靠背锁，其特征在于，所述锁壳(9)包括锁底(17)、与锁底(17)相扣合的锁盖(18)，所述锁底(17)的上部设置有用以设置手柄(10)的第一凹槽(19)和手柄固定孔(A)、用以设置警示板组件(11)的第二凹槽(20)，锁底(17)的下部设置有用以放置减震组件(13)的第三凹槽(21)、用以放置压簧组件(14)的第四凹槽(22)。
  7. 根据权利要求5或6所述的整体式车用座椅靠背锁，其特征在于，所述手柄(10)的下部设置有第一固定轴(23)、第二固定轴(24)以及扭簧孔(25)，所述第一固定轴(23)上套设有手柄扭簧(26)，手柄扭簧(26)的扭臂设置在所述锁壳(9)内，所述第二固定轴(24)卡在所述棘爪的卡接槽(8)内，警示板扭簧(15)的一个扭臂卡在所述扭簧孔(25)内；
    所述警示板组件(11)包括警示板(27)、设置在警示板(27)上端的警示板嵌件(28)，所述警示板(27)卡在锁壳(9)内，警示板(27)的下端部开设有一个用以使警示板扭簧(15)的另一扭臂穿过的槽孔(29)。
  8. 根据权利要求5或6所述的整体式车用座椅靠背锁，其特征在于，所述压簧组件(14)包括斜块(30)、固定在斜块上的压簧座(31)、以及设置在压簧座内的压簧(32)，所述压簧(32)的上端部顶在锁壳(9)上。
  9. 根据权利要求8所述的整体式车用座椅靠背锁，其特征在于，减震组件(13)包括减震块(33)、减震压簧(34)，所述减震块(33)位于压 簧座(31)的下方，减震压簧(34)固定在减震块(33)上且其端部顶压在锁壳(9)的内侧壁上。
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